[SCSI] mpt3sas: add new driver supporting 12GB SAS

These driver files are initially, substantially similar to mpt2sas but,
because mpt2sas is going into maintenance mode and mp3sas will become heavily
developed, we elected to keep the code bases separate.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Reviewed-by: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

20 files changed, 30406 insertions, 0 deletions

diff --git a/drivers/scsi/mpt3sas/Kconfig b/drivers/scsi/mpt3sas/Kconfig
new file mode 100644
index 000000000000..81471bf415d8
--- /dev/null
+++ b/drivers/scsi/mpt3sas/Kconfig
@@ -0,0 +1,67 @@
+#
+# Kernel configuration file for the MPT3SAS
+#
+# This code is based on drivers/scsi/mpt3sas/Kconfig
+# Copyright (C) 2012  LSI Corporation
+#  (mailto:DL-MPTFusionLinux@lsi.com)
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# NO WARRANTY
+# THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+# CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+# LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+# MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+# solely responsible for determining the appropriateness of using and
+# distributing the Program and assumes all risks associated with its
+# exercise of rights under this Agreement, including but not limited to
+# the risks and costs of program errors, damage to or loss of data,
+# programs or equipment, and unavailability or interruption of operations.
+
+# DISCLAIMER OF LIABILITY
+# NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+# USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+# HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+# USA.
+
+config SCSI_MPT3SAS
+	tristate "LSI MPT Fusion SAS 3.0 Device Driver"
+	depends on PCI && SCSI
+	select SCSI_SAS_ATTRS
+	select RAID_ATTRS
+	---help---
+	This driver supports PCI-Express SAS 12Gb/s Host Adapters.
+
+config SCSI_MPT3SAS_MAX_SGE
+	int "LSI MPT Fusion Max number of SG Entries (16 - 256)"
+	depends on PCI && SCSI && SCSI_MPT3SAS
+	default "128"
+	range 16 256
+	---help---
+	This option allows you to specify the maximum number of scatter-
+	gather entries per I/O. The driver default is 128, which matches
+	MAX_PHYS_SEGMENTS in most kernels.  However in SuSE kernels this
+	can be 256. However, it may decreased down to 16.  Decreasing this
+	parameter will reduce memory requirements on a per controller instance.
+
+config SCSI_MPT3SAS_LOGGING
+	bool "LSI MPT Fusion logging facility"
+	depends on PCI && SCSI && SCSI_MPT3SAS
+	---help---
+	This turns on a logging facility.
diff --git a/drivers/scsi/mpt3sas/Makefile b/drivers/scsi/mpt3sas/Makefile
new file mode 100644
index 000000000000..4c1d2e7a1176
--- /dev/null
+++ b/drivers/scsi/mpt3sas/Makefile
@@ -0,0 +1,8 @@
+# mpt3sas makefile
+obj-m += mpt3sas.o
+mpt3sas-y +=  mpt3sas_base.o     \
+		mpt3sas_config.o \
+		mpt3sas_scsih.o      \
+		mpt3sas_transport.o     \
+		mpt3sas_ctl.o	\
+		mpt3sas_trigger_diag.o
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2.h b/drivers/scsi/mpt3sas/mpi/mpi2.h
new file mode 100644
index 000000000000..03317ffea62c
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2.h
@@ -0,0 +1,1164 @@
+/*
+ * Copyright (c) 2000-2012 LSI Corporation.
+ *
+ *
+ *          Name:  mpi2.h
+ *         Title:  MPI Message independent structures and definitions
+ *                 including System Interface Register Set and
+ *                 scatter/gather formats.
+ * Creation Date:  June 21, 2006
+ *
+ * mpi2.h Version:  02.00.26
+ *
+ * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
+ *       prefix are for use only on MPI v2.5 products, and must not be used
+ *       with MPI v2.0 products. Unless otherwise noted, names beginning with
+ *       MPI2 or Mpi2 are for use with both MPI v2.0 and MPI v2.5 products.
+ *
+ * Version History
+ * ---------------
+ *
+ * Date      Version   Description
+ * --------  --------  ------------------------------------------------------
+ * 04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ * 06-04-07  02.00.01  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 06-26-07  02.00.02  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 08-31-07  02.00.03  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Moved ReplyPostHostIndex register to offset 0x6C of the
+ *                     MPI2_SYSTEM_INTERFACE_REGS and modified the define for
+ *                     MPI2_REPLY_POST_HOST_INDEX_OFFSET.
+ *                     Added union of request descriptors.
+ *                     Added union of reply descriptors.
+ * 10-31-07  02.00.04  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added define for MPI2_VERSION_02_00.
+ *                     Fixed the size of the FunctionDependent5 field in the
+ *                     MPI2_DEFAULT_REPLY structure.
+ * 12-18-07  02.00.05  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Removed the MPI-defined Fault Codes and extended the
+ *                     product specific codes up to 0xEFFF.
+ *                     Added a sixth key value for the WriteSequence register
+ *                     and changed the flush value to 0x0.
+ *                     Added message function codes for Diagnostic Buffer Post
+ *                     and Diagnsotic Release.
+ *                     New IOCStatus define: MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED
+ *                     Moved MPI2_VERSION_UNION from mpi2_ioc.h.
+ * 02-29-08  02.00.06  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 03-03-08  02.00.07  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 05-21-08  02.00.08  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added #defines for marking a reply descriptor as unused.
+ * 06-27-08  02.00.09  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 10-02-08  02.00.10  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Moved LUN field defines from mpi2_init.h.
+ * 01-19-09  02.00.11  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 05-06-09  02.00.12  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     In all request and reply descriptors, replaced VF_ID
+ *                     field with MSIxIndex field.
+ *                     Removed DevHandle field from
+ *                     MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR and made those
+ *                     bytes reserved.
+ *                     Added RAID Accelerator functionality.
+ * 07-30-09  02.00.13  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 10-28-09  02.00.14  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added MSI-x index mask and shift for Reply Post Host
+ *                     Index register.
+ *                     Added function code for Host Based Discovery Action.
+ * 02-10-10  02.00.15  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added define for MPI2_FUNCTION_PWR_MGMT_CONTROL.
+ *                     Added defines for product-specific range of message
+ *                     function codes, 0xF0 to 0xFF.
+ * 05-12-10  02.00.16  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added alternative defines for the SGE Direction bit.
+ * 08-11-10  02.00.17  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 11-10-10  02.00.18  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added MPI2_IEEE_SGE_FLAGS_SYSTEMPLBCPI_ADDR define.
+ * 02-23-11  02.00.19  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added MPI2_FUNCTION_SEND_HOST_MESSAGE.
+ * 03-09-11  02.00.20  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 05-25-11  02.00.21  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 08-24-11  02.00.22  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 11-18-11  02.00.23  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Incorporating additions for MPI v2.5.
+ * 02-06-12  02.00.24  Bumped MPI2_HEADER_VERSION_UNIT.
+ * 03-29-12  02.00.25  Bumped MPI2_HEADER_VERSION_UNIT.
+ *                     Added Hard Reset delay timings.
+ * 07-10-12  02.00.26  Bumped MPI2_HEADER_VERSION_UNIT.
+ * --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_H
+#define MPI2_H
+
+/*****************************************************************************
+*
+*       MPI Version Definitions
+*
+*****************************************************************************/
+
+#define MPI2_VERSION_MAJOR_MASK             (0xFF00)
+#define MPI2_VERSION_MAJOR_SHIFT            (8)
+#define MPI2_VERSION_MINOR_MASK             (0x00FF)
+#define MPI2_VERSION_MINOR_SHIFT            (0)
+
+/*major version for all MPI v2.x */
+#define MPI2_VERSION_MAJOR                  (0x02)
+
+/*minor version for MPI v2.0 compatible products */
+#define MPI2_VERSION_MINOR                  (0x00)
+#define MPI2_VERSION ((MPI2_VERSION_MAJOR << MPI2_VERSION_MAJOR_SHIFT) | \
+					MPI2_VERSION_MINOR)
+#define MPI2_VERSION_02_00                  (0x0200)
+
+/*minor version for MPI v2.5 compatible products */
+#define MPI25_VERSION_MINOR                 (0x05)
+#define MPI25_VERSION ((MPI2_VERSION_MAJOR << MPI2_VERSION_MAJOR_SHIFT) | \
+					MPI25_VERSION_MINOR)
+#define MPI2_VERSION_02_05                  (0x0205)
+
+/*Unit and Dev versioning for this MPI header set */
+#define MPI2_HEADER_VERSION_UNIT            (0x1A)
+#define MPI2_HEADER_VERSION_DEV             (0x00)
+#define MPI2_HEADER_VERSION_UNIT_MASK       (0xFF00)
+#define MPI2_HEADER_VERSION_UNIT_SHIFT      (8)
+#define MPI2_HEADER_VERSION_DEV_MASK        (0x00FF)
+#define MPI2_HEADER_VERSION_DEV_SHIFT       (0)
+#define MPI2_HEADER_VERSION ((MPI2_HEADER_VERSION_UNIT << 8) | \
+					MPI2_HEADER_VERSION_DEV)
+
+/*****************************************************************************
+*
+*       IOC State Definitions
+*
+*****************************************************************************/
+
+#define MPI2_IOC_STATE_RESET               (0x00000000)
+#define MPI2_IOC_STATE_READY               (0x10000000)
+#define MPI2_IOC_STATE_OPERATIONAL         (0x20000000)
+#define MPI2_IOC_STATE_FAULT               (0x40000000)
+
+#define MPI2_IOC_STATE_MASK                (0xF0000000)
+#define MPI2_IOC_STATE_SHIFT               (28)
+
+/*Fault state range for prodcut specific codes */
+#define MPI2_FAULT_PRODUCT_SPECIFIC_MIN                 (0x0000)
+#define MPI2_FAULT_PRODUCT_SPECIFIC_MAX                 (0xEFFF)
+
+/*****************************************************************************
+*
+*       System Interface Register Definitions
+*
+*****************************************************************************/
+
+typedef volatile struct _MPI2_SYSTEM_INTERFACE_REGS {
+	U32 Doorbell;		/*0x00 */
+	U32 WriteSequence;	/*0x04 */
+	U32 HostDiagnostic;	/*0x08 */
+	U32 Reserved1;		/*0x0C */
+	U32 DiagRWData;		/*0x10 */
+	U32 DiagRWAddressLow;	/*0x14 */
+	U32 DiagRWAddressHigh;	/*0x18 */
+	U32 Reserved2[5];	/*0x1C */
+	U32 HostInterruptStatus;	/*0x30 */
+	U32 HostInterruptMask;	/*0x34 */
+	U32 DCRData;		/*0x38 */
+	U32 DCRAddress;		/*0x3C */
+	U32 Reserved3[2];	/*0x40 */
+	U32 ReplyFreeHostIndex;	/*0x48 */
+	U32 Reserved4[8];	/*0x4C */
+	U32 ReplyPostHostIndex;	/*0x6C */
+	U32 Reserved5;		/*0x70 */
+	U32 HCBSize;		/*0x74 */
+	U32 HCBAddressLow;	/*0x78 */
+	U32 HCBAddressHigh;	/*0x7C */
+	U32 Reserved6[16];	/*0x80 */
+	U32 RequestDescriptorPostLow;	/*0xC0 */
+	U32 RequestDescriptorPostHigh;	/*0xC4 */
+	U32 Reserved7[14];	/*0xC8 */
+} MPI2_SYSTEM_INTERFACE_REGS,
+	*PTR_MPI2_SYSTEM_INTERFACE_REGS,
+	Mpi2SystemInterfaceRegs_t,
+	*pMpi2SystemInterfaceRegs_t;
+
+/*
+ *Defines for working with the Doorbell register.
+ */
+#define MPI2_DOORBELL_OFFSET                    (0x00000000)
+
+/*IOC --> System values */
+#define MPI2_DOORBELL_USED                      (0x08000000)
+#define MPI2_DOORBELL_WHO_INIT_MASK             (0x07000000)
+#define MPI2_DOORBELL_WHO_INIT_SHIFT            (24)
+#define MPI2_DOORBELL_FAULT_CODE_MASK           (0x0000FFFF)
+#define MPI2_DOORBELL_DATA_MASK                 (0x0000FFFF)
+
+/*System --> IOC values */
+#define MPI2_DOORBELL_FUNCTION_MASK             (0xFF000000)
+#define MPI2_DOORBELL_FUNCTION_SHIFT            (24)
+#define MPI2_DOORBELL_ADD_DWORDS_MASK           (0x00FF0000)
+#define MPI2_DOORBELL_ADD_DWORDS_SHIFT          (16)
+
+/*
+ *Defines for the WriteSequence register
+ */
+#define MPI2_WRITE_SEQUENCE_OFFSET              (0x00000004)
+#define MPI2_WRSEQ_KEY_VALUE_MASK               (0x0000000F)
+#define MPI2_WRSEQ_FLUSH_KEY_VALUE              (0x0)
+#define MPI2_WRSEQ_1ST_KEY_VALUE                (0xF)
+#define MPI2_WRSEQ_2ND_KEY_VALUE                (0x4)
+#define MPI2_WRSEQ_3RD_KEY_VALUE                (0xB)
+#define MPI2_WRSEQ_4TH_KEY_VALUE                (0x2)
+#define MPI2_WRSEQ_5TH_KEY_VALUE                (0x7)
+#define MPI2_WRSEQ_6TH_KEY_VALUE                (0xD)
+
+/*
+ *Defines for the HostDiagnostic register
+ */
+#define MPI2_HOST_DIAGNOSTIC_OFFSET             (0x00000008)
+
+#define MPI2_DIAG_BOOT_DEVICE_SELECT_MASK       (0x00001800)
+#define MPI2_DIAG_BOOT_DEVICE_SELECT_DEFAULT    (0x00000000)
+#define MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW       (0x00000800)
+
+#define MPI2_DIAG_CLEAR_FLASH_BAD_SIG           (0x00000400)
+#define MPI2_DIAG_FORCE_HCB_ON_RESET            (0x00000200)
+#define MPI2_DIAG_HCB_MODE                      (0x00000100)
+#define MPI2_DIAG_DIAG_WRITE_ENABLE             (0x00000080)
+#define MPI2_DIAG_FLASH_BAD_SIG                 (0x00000040)
+#define MPI2_DIAG_RESET_HISTORY                 (0x00000020)
+#define MPI2_DIAG_DIAG_RW_ENABLE                (0x00000010)
+#define MPI2_DIAG_RESET_ADAPTER                 (0x00000004)
+#define MPI2_DIAG_HOLD_IOC_RESET                (0x00000002)
+
+/*
+ *Offsets for DiagRWData and address
+ */
+#define MPI2_DIAG_RW_DATA_OFFSET                (0x00000010)
+#define MPI2_DIAG_RW_ADDRESS_LOW_OFFSET         (0x00000014)
+#define MPI2_DIAG_RW_ADDRESS_HIGH_OFFSET        (0x00000018)
+
+/*
+ *Defines for the HostInterruptStatus register
+ */
+#define MPI2_HOST_INTERRUPT_STATUS_OFFSET       (0x00000030)
+#define MPI2_HIS_SYS2IOC_DB_STATUS              (0x80000000)
+#define MPI2_HIS_IOP_DOORBELL_STATUS MPI2_HIS_SYS2IOC_DB_STATUS
+#define MPI2_HIS_RESET_IRQ_STATUS               (0x40000000)
+#define MPI2_HIS_REPLY_DESCRIPTOR_INTERRUPT     (0x00000008)
+#define MPI2_HIS_IOC2SYS_DB_STATUS              (0x00000001)
+#define MPI2_HIS_DOORBELL_INTERRUPT MPI2_HIS_IOC2SYS_DB_STATUS
+
+/*
+ *Defines for the HostInterruptMask register
+ */
+#define MPI2_HOST_INTERRUPT_MASK_OFFSET         (0x00000034)
+#define MPI2_HIM_RESET_IRQ_MASK                 (0x40000000)
+#define MPI2_HIM_REPLY_INT_MASK                 (0x00000008)
+#define MPI2_HIM_RIM                            MPI2_HIM_REPLY_INT_MASK
+#define MPI2_HIM_IOC2SYS_DB_MASK                (0x00000001)
+#define MPI2_HIM_DIM                            MPI2_HIM_IOC2SYS_DB_MASK
+
+/*
+ *Offsets for DCRData and address
+ */
+#define MPI2_DCR_DATA_OFFSET                    (0x00000038)
+#define MPI2_DCR_ADDRESS_OFFSET                 (0x0000003C)
+
+/*
+ *Offset for the Reply Free Queue
+ */
+#define MPI2_REPLY_FREE_HOST_INDEX_OFFSET       (0x00000048)
+
+/*
+ *Defines for the Reply Descriptor Post Queue
+ */
+#define MPI2_REPLY_POST_HOST_INDEX_OFFSET       (0x0000006C)
+#define MPI2_REPLY_POST_HOST_INDEX_MASK         (0x00FFFFFF)
+#define MPI2_RPHI_MSIX_INDEX_MASK               (0xFF000000)
+#define MPI2_RPHI_MSIX_INDEX_SHIFT              (24)
+
+/*
+ *Defines for the HCBSize and address
+ */
+#define MPI2_HCB_SIZE_OFFSET                    (0x00000074)
+#define MPI2_HCB_SIZE_SIZE_MASK                 (0xFFFFF000)
+#define MPI2_HCB_SIZE_HCB_ENABLE                (0x00000001)
+
+#define MPI2_HCB_ADDRESS_LOW_OFFSET             (0x00000078)
+#define MPI2_HCB_ADDRESS_HIGH_OFFSET            (0x0000007C)
+
+/*
+ *Offsets for the Request Queue
+ */
+#define MPI2_REQUEST_DESCRIPTOR_POST_LOW_OFFSET     (0x000000C0)
+#define MPI2_REQUEST_DESCRIPTOR_POST_HIGH_OFFSET    (0x000000C4)
+
+/*Hard Reset delay timings */
+#define MPI2_HARD_RESET_PCIE_FIRST_READ_DELAY_MICRO_SEC     (50000)
+#define MPI2_HARD_RESET_PCIE_RESET_READ_WINDOW_MICRO_SEC    (255000)
+#define MPI2_HARD_RESET_PCIE_SECOND_READ_DELAY_MICRO_SEC    (256000)
+
+/*****************************************************************************
+*
+*       Message Descriptors
+*
+*****************************************************************************/
+
+/*Request Descriptors */
+
+/*Default Request Descriptor */
+typedef struct _MPI2_DEFAULT_REQUEST_DESCRIPTOR {
+	U8 RequestFlags;	/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U16 LMID;		/*0x04 */
+	U16 DescriptorTypeDependent;	/*0x06 */
+} MPI2_DEFAULT_REQUEST_DESCRIPTOR,
+	*PTR_MPI2_DEFAULT_REQUEST_DESCRIPTOR,
+	Mpi2DefaultRequestDescriptor_t,
+	*pMpi2DefaultRequestDescriptor_t;
+
+/*defines for the RequestFlags field */
+#define MPI2_REQ_DESCRIPT_FLAGS_TYPE_MASK               (0x0E)
+#define MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO                 (0x00)
+#define MPI2_REQ_DESCRIPT_FLAGS_SCSI_TARGET             (0x02)
+#define MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY           (0x06)
+#define MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE            (0x08)
+#define MPI2_REQ_DESCRIPT_FLAGS_RAID_ACCELERATOR        (0x0A)
+#define MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO      (0x0C)
+
+#define MPI2_REQ_DESCRIPT_FLAGS_IOC_FIFO_MARKER (0x01)
+
+/*High Priority Request Descriptor */
+typedef struct _MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR {
+	U8 RequestFlags;	/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U16 LMID;		/*0x04 */
+	U16 Reserved1;		/*0x06 */
+} MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR,
+	*PTR_MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR,
+	Mpi2HighPriorityRequestDescriptor_t,
+	*pMpi2HighPriorityRequestDescriptor_t;
+
+/*SCSI IO Request Descriptor */
+typedef struct _MPI2_SCSI_IO_REQUEST_DESCRIPTOR {
+	U8 RequestFlags;	/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U16 LMID;		/*0x04 */
+	U16 DevHandle;		/*0x06 */
+} MPI2_SCSI_IO_REQUEST_DESCRIPTOR,
+	*PTR_MPI2_SCSI_IO_REQUEST_DESCRIPTOR,
+	Mpi2SCSIIORequestDescriptor_t,
+	*pMpi2SCSIIORequestDescriptor_t;
+
+/*SCSI Target Request Descriptor */
+typedef struct _MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR {
+	U8 RequestFlags;	/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U16 LMID;		/*0x04 */
+	U16 IoIndex;		/*0x06 */
+} MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR,
+	*PTR_MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR,
+	Mpi2SCSITargetRequestDescriptor_t,
+	*pMpi2SCSITargetRequestDescriptor_t;
+
+/*RAID Accelerator Request Descriptor */
+typedef struct _MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR {
+	U8 RequestFlags;	/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U16 LMID;		/*0x04 */
+	U16 Reserved;		/*0x06 */
+} MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR,
+	*PTR_MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR,
+	Mpi2RAIDAcceleratorRequestDescriptor_t,
+	*pMpi2RAIDAcceleratorRequestDescriptor_t;
+
+/*Fast Path SCSI IO Request Descriptor */
+typedef MPI2_SCSI_IO_REQUEST_DESCRIPTOR
+	MPI25_FP_SCSI_IO_REQUEST_DESCRIPTOR,
+	*PTR_MPI25_FP_SCSI_IO_REQUEST_DESCRIPTOR,
+	Mpi25FastPathSCSIIORequestDescriptor_t,
+	*pMpi25FastPathSCSIIORequestDescriptor_t;
+
+/*union of Request Descriptors */
+typedef union _MPI2_REQUEST_DESCRIPTOR_UNION {
+	MPI2_DEFAULT_REQUEST_DESCRIPTOR Default;
+	MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR HighPriority;
+	MPI2_SCSI_IO_REQUEST_DESCRIPTOR SCSIIO;
+	MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR SCSITarget;
+	MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR RAIDAccelerator;
+	MPI25_FP_SCSI_IO_REQUEST_DESCRIPTOR FastPathSCSIIO;
+	U64 Words;
+} MPI2_REQUEST_DESCRIPTOR_UNION,
+	*PTR_MPI2_REQUEST_DESCRIPTOR_UNION,
+	Mpi2RequestDescriptorUnion_t,
+	*pMpi2RequestDescriptorUnion_t;
+
+/*Reply Descriptors */
+
+/*Default Reply Descriptor */
+typedef struct _MPI2_DEFAULT_REPLY_DESCRIPTOR {
+	U8 ReplyFlags;		/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 DescriptorTypeDependent1;	/*0x02 */
+	U32 DescriptorTypeDependent2;	/*0x04 */
+} MPI2_DEFAULT_REPLY_DESCRIPTOR,
+	*PTR_MPI2_DEFAULT_REPLY_DESCRIPTOR,
+	Mpi2DefaultReplyDescriptor_t,
+	*pMpi2DefaultReplyDescriptor_t;
+
+/*defines for the ReplyFlags field */
+#define MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK                   (0x0F)
+#define MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS             (0x00)
+#define MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY               (0x01)
+#define MPI2_RPY_DESCRIPT_FLAGS_TARGETASSIST_SUCCESS        (0x02)
+#define MPI2_RPY_DESCRIPT_FLAGS_TARGET_COMMAND_BUFFER       (0x03)
+#define MPI2_RPY_DESCRIPT_FLAGS_RAID_ACCELERATOR_SUCCESS    (0x05)
+#define MPI25_RPY_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO_SUCCESS  (0x06)
+#define MPI2_RPY_DESCRIPT_FLAGS_UNUSED                      (0x0F)
+
+/*values for marking a reply descriptor as unused */
+#define MPI2_RPY_DESCRIPT_UNUSED_WORD0_MARK             (0xFFFFFFFF)
+#define MPI2_RPY_DESCRIPT_UNUSED_WORD1_MARK             (0xFFFFFFFF)
+
+/*Address Reply Descriptor */
+typedef struct _MPI2_ADDRESS_REPLY_DESCRIPTOR {
+	U8 ReplyFlags;		/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U32 ReplyFrameAddress;	/*0x04 */
+} MPI2_ADDRESS_REPLY_DESCRIPTOR,
+	*PTR_MPI2_ADDRESS_REPLY_DESCRIPTOR,
+	Mpi2AddressReplyDescriptor_t,
+	*pMpi2AddressReplyDescriptor_t;
+
+#define MPI2_ADDRESS_REPLY_SMID_INVALID                 (0x00)
+
+/*SCSI IO Success Reply Descriptor */
+typedef struct _MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR {
+	U8 ReplyFlags;		/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U16 TaskTag;		/*0x04 */
+	U16 Reserved1;		/*0x06 */
+} MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR,
+	*PTR_MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR,
+	Mpi2SCSIIOSuccessReplyDescriptor_t,
+	*pMpi2SCSIIOSuccessReplyDescriptor_t;
+
+/*TargetAssist Success Reply Descriptor */
+typedef struct _MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR {
+	U8 ReplyFlags;		/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U8 SequenceNumber;	/*0x04 */
+	U8 Reserved1;		/*0x05 */
+	U16 IoIndex;		/*0x06 */
+} MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR,
+	*PTR_MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR,
+	Mpi2TargetAssistSuccessReplyDescriptor_t,
+	*pMpi2TargetAssistSuccessReplyDescriptor_t;
+
+/*Target Command Buffer Reply Descriptor */
+typedef struct _MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR {
+	U8 ReplyFlags;		/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U8 VP_ID;		/*0x02 */
+	U8 Flags;		/*0x03 */
+	U16 InitiatorDevHandle;	/*0x04 */
+	U16 IoIndex;		/*0x06 */
+} MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR,
+	*PTR_MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR,
+	Mpi2TargetCommandBufferReplyDescriptor_t,
+	*pMpi2TargetCommandBufferReplyDescriptor_t;
+
+/*defines for Flags field */
+#define MPI2_RPY_DESCRIPT_TCB_FLAGS_PHYNUM_MASK     (0x3F)
+
+/*RAID Accelerator Success Reply Descriptor */
+typedef struct _MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR {
+	U8 ReplyFlags;		/*0x00 */
+	U8 MSIxIndex;		/*0x01 */
+	U16 SMID;		/*0x02 */
+	U32 Reserved;		/*0x04 */
+} MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR,
+	*PTR_MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR,
+	Mpi2RAIDAcceleratorSuccessReplyDescriptor_t,
+	*pMpi2RAIDAcceleratorSuccessReplyDescriptor_t;
+
+/*Fast Path SCSI IO Success Reply Descriptor */
+typedef MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR
+	MPI25_FP_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR,
+	*PTR_MPI25_FP_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR,
+	Mpi25FastPathSCSIIOSuccessReplyDescriptor_t,
+	*pMpi25FastPathSCSIIOSuccessReplyDescriptor_t;
+
+/*union of Reply Descriptors */
+typedef union _MPI2_REPLY_DESCRIPTORS_UNION {
+	MPI2_DEFAULT_REPLY_DESCRIPTOR Default;
+	MPI2_ADDRESS_REPLY_DESCRIPTOR AddressReply;
+	MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR SCSIIOSuccess;
+	MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR TargetAssistSuccess;
+	MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR TargetCommandBuffer;
+	MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR RAIDAcceleratorSuccess;
+	MPI25_FP_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR FastPathSCSIIOSuccess;
+	U64 Words;
+} MPI2_REPLY_DESCRIPTORS_UNION,
+	*PTR_MPI2_REPLY_DESCRIPTORS_UNION,
+	Mpi2ReplyDescriptorsUnion_t,
+	*pMpi2ReplyDescriptorsUnion_t;
+
+/*****************************************************************************
+*
+*       Message Functions
+*
+*****************************************************************************/
+
+#define MPI2_FUNCTION_SCSI_IO_REQUEST		    (0x00)
+#define MPI2_FUNCTION_SCSI_TASK_MGMT		    (0x01)
+#define MPI2_FUNCTION_IOC_INIT                      (0x02)
+#define MPI2_FUNCTION_IOC_FACTS                     (0x03)
+#define MPI2_FUNCTION_CONFIG                        (0x04)
+#define MPI2_FUNCTION_PORT_FACTS                    (0x05)
+#define MPI2_FUNCTION_PORT_ENABLE                   (0x06)
+#define MPI2_FUNCTION_EVENT_NOTIFICATION            (0x07)
+#define MPI2_FUNCTION_EVENT_ACK                     (0x08)
+#define MPI2_FUNCTION_FW_DOWNLOAD                   (0x09)
+#define MPI2_FUNCTION_TARGET_ASSIST                 (0x0B)
+#define MPI2_FUNCTION_TARGET_STATUS_SEND            (0x0C)
+#define MPI2_FUNCTION_TARGET_MODE_ABORT             (0x0D)
+#define MPI2_FUNCTION_FW_UPLOAD                     (0x12)
+#define MPI2_FUNCTION_RAID_ACTION                   (0x15)
+#define MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH      (0x16)
+#define MPI2_FUNCTION_TOOLBOX                       (0x17)
+#define MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR      (0x18)
+#define MPI2_FUNCTION_SMP_PASSTHROUGH               (0x1A)
+#define MPI2_FUNCTION_SAS_IO_UNIT_CONTROL           (0x1B)
+#define MPI2_FUNCTION_SATA_PASSTHROUGH              (0x1C)
+#define MPI2_FUNCTION_DIAG_BUFFER_POST              (0x1D)
+#define MPI2_FUNCTION_DIAG_RELEASE                  (0x1E)
+#define MPI2_FUNCTION_TARGET_CMD_BUF_BASE_POST      (0x24)
+#define MPI2_FUNCTION_TARGET_CMD_BUF_LIST_POST      (0x25)
+#define MPI2_FUNCTION_RAID_ACCELERATOR              (0x2C)
+#define MPI2_FUNCTION_HOST_BASED_DISCOVERY_ACTION   (0x2F)
+#define MPI2_FUNCTION_PWR_MGMT_CONTROL              (0x30)
+#define MPI2_FUNCTION_SEND_HOST_MESSAGE             (0x31)
+#define MPI2_FUNCTION_MIN_PRODUCT_SPECIFIC          (0xF0)
+#define MPI2_FUNCTION_MAX_PRODUCT_SPECIFIC          (0xFF)
+
+/*Doorbell functions */
+#define MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET        (0x40)
+#define MPI2_FUNCTION_HANDSHAKE                     (0x42)
+
+/*****************************************************************************
+*
+*       IOC Status Values
+*
+*****************************************************************************/
+
+/*mask for IOCStatus status value */
+#define MPI2_IOCSTATUS_MASK                     (0x7FFF)
+
+/****************************************************************************
+* Common IOCStatus values for all replies
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_SUCCESS                      (0x0000)
+#define MPI2_IOCSTATUS_INVALID_FUNCTION             (0x0001)
+#define MPI2_IOCSTATUS_BUSY                         (0x0002)
+#define MPI2_IOCSTATUS_INVALID_SGL                  (0x0003)
+#define MPI2_IOCSTATUS_INTERNAL_ERROR               (0x0004)
+#define MPI2_IOCSTATUS_INVALID_VPID                 (0x0005)
+#define MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES       (0x0006)
+#define MPI2_IOCSTATUS_INVALID_FIELD                (0x0007)
+#define MPI2_IOCSTATUS_INVALID_STATE                (0x0008)
+#define MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED       (0x0009)
+
+/****************************************************************************
+* Config IOCStatus values
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_CONFIG_INVALID_ACTION        (0x0020)
+#define MPI2_IOCSTATUS_CONFIG_INVALID_TYPE          (0x0021)
+#define MPI2_IOCSTATUS_CONFIG_INVALID_PAGE          (0x0022)
+#define MPI2_IOCSTATUS_CONFIG_INVALID_DATA          (0x0023)
+#define MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS           (0x0024)
+#define MPI2_IOCSTATUS_CONFIG_CANT_COMMIT           (0x0025)
+
+/****************************************************************************
+* SCSI IO Reply
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR         (0x0040)
+#define MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE       (0x0042)
+#define MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE        (0x0043)
+#define MPI2_IOCSTATUS_SCSI_DATA_OVERRUN            (0x0044)
+#define MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN           (0x0045)
+#define MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR           (0x0046)
+#define MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR          (0x0047)
+#define MPI2_IOCSTATUS_SCSI_TASK_TERMINATED         (0x0048)
+#define MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH       (0x0049)
+#define MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED        (0x004A)
+#define MPI2_IOCSTATUS_SCSI_IOC_TERMINATED          (0x004B)
+#define MPI2_IOCSTATUS_SCSI_EXT_TERMINATED          (0x004C)
+
+/****************************************************************************
+* For use by SCSI Initiator and SCSI Target end-to-end data protection
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_EEDP_GUARD_ERROR             (0x004D)
+#define MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR           (0x004E)
+#define MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR           (0x004F)
+
+/****************************************************************************
+* SCSI Target values
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX      (0x0062)
+#define MPI2_IOCSTATUS_TARGET_ABORTED               (0x0063)
+#define MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE     (0x0064)
+#define MPI2_IOCSTATUS_TARGET_NO_CONNECTION         (0x0065)
+#define MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH   (0x006A)
+#define MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR     (0x006D)
+#define MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA   (0x006E)
+#define MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT          (0x006F)
+#define MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT       (0x0070)
+#define MPI2_IOCSTATUS_TARGET_NAK_RECEIVED          (0x0071)
+
+/****************************************************************************
+* Serial Attached SCSI values
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED       (0x0090)
+#define MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN         (0x0091)
+
+/****************************************************************************
+* Diagnostic Buffer Post / Diagnostic Release values
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED          (0x00A0)
+
+/****************************************************************************
+* RAID Accelerator values
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_RAID_ACCEL_ERROR             (0x00B0)
+
+/****************************************************************************
+* IOCStatus flag to indicate that log info is available
+****************************************************************************/
+
+#define MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE      (0x8000)
+
+/****************************************************************************
+* IOCLogInfo Types
+****************************************************************************/
+
+#define MPI2_IOCLOGINFO_TYPE_MASK               (0xF0000000)
+#define MPI2_IOCLOGINFO_TYPE_SHIFT              (28)
+#define MPI2_IOCLOGINFO_TYPE_NONE               (0x0)
+#define MPI2_IOCLOGINFO_TYPE_SCSI               (0x1)
+#define MPI2_IOCLOGINFO_TYPE_FC                 (0x2)
+#define MPI2_IOCLOGINFO_TYPE_SAS                (0x3)
+#define MPI2_IOCLOGINFO_TYPE_ISCSI              (0x4)
+#define MPI2_IOCLOGINFO_LOG_DATA_MASK           (0x0FFFFFFF)
+
+/*****************************************************************************
+*
+*       Standard Message Structures
+*
+*****************************************************************************/
+
+/****************************************************************************
+*Request Message Header for all request messages
+****************************************************************************/
+
+typedef struct _MPI2_REQUEST_HEADER {
+	U16 FunctionDependent1;	/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 FunctionDependent2;	/*0x04 */
+	U8 FunctionDependent3;	/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved1;		/*0x0A */
+} MPI2_REQUEST_HEADER, *PTR_MPI2_REQUEST_HEADER,
+	MPI2RequestHeader_t, *pMPI2RequestHeader_t;
+
+/****************************************************************************
+* Default Reply
+****************************************************************************/
+
+typedef struct _MPI2_DEFAULT_REPLY {
+	U16 FunctionDependent1;	/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 FunctionDependent2;	/*0x04 */
+	U8 FunctionDependent3;	/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved1;		/*0x0A */
+	U16 FunctionDependent5;	/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_DEFAULT_REPLY, *PTR_MPI2_DEFAULT_REPLY,
+	MPI2DefaultReply_t, *pMPI2DefaultReply_t;
+
+/*common version structure/union used in messages and configuration pages */
+
+typedef struct _MPI2_VERSION_STRUCT {
+	U8 Dev;			/*0x00 */
+	U8 Unit;		/*0x01 */
+	U8 Minor;		/*0x02 */
+	U8 Major;		/*0x03 */
+} MPI2_VERSION_STRUCT;
+
+typedef union _MPI2_VERSION_UNION {
+	MPI2_VERSION_STRUCT Struct;
+	U32 Word;
+} MPI2_VERSION_UNION;
+
+/*LUN field defines, common to many structures */
+#define MPI2_LUN_FIRST_LEVEL_ADDRESSING             (0x0000FFFF)
+#define MPI2_LUN_SECOND_LEVEL_ADDRESSING            (0xFFFF0000)
+#define MPI2_LUN_THIRD_LEVEL_ADDRESSING             (0x0000FFFF)
+#define MPI2_LUN_FOURTH_LEVEL_ADDRESSING            (0xFFFF0000)
+#define MPI2_LUN_LEVEL_1_WORD                       (0xFF00)
+#define MPI2_LUN_LEVEL_1_DWORD                      (0x0000FF00)
+
+/*****************************************************************************
+*
+*       Fusion-MPT MPI Scatter Gather Elements
+*
+*****************************************************************************/
+
+/****************************************************************************
+* MPI Simple Element structures
+****************************************************************************/
+
+typedef struct _MPI2_SGE_SIMPLE32 {
+	U32 FlagsLength;
+	U32 Address;
+} MPI2_SGE_SIMPLE32, *PTR_MPI2_SGE_SIMPLE32,
+	Mpi2SGESimple32_t, *pMpi2SGESimple32_t;
+
+typedef struct _MPI2_SGE_SIMPLE64 {
+	U32 FlagsLength;
+	U64 Address;
+} MPI2_SGE_SIMPLE64, *PTR_MPI2_SGE_SIMPLE64,
+	Mpi2SGESimple64_t, *pMpi2SGESimple64_t;
+
+typedef struct _MPI2_SGE_SIMPLE_UNION {
+	U32 FlagsLength;
+	union {
+		U32 Address32;
+		U64 Address64;
+	} u;
+} MPI2_SGE_SIMPLE_UNION,
+	*PTR_MPI2_SGE_SIMPLE_UNION,
+	Mpi2SGESimpleUnion_t,
+	*pMpi2SGESimpleUnion_t;
+
+/****************************************************************************
+* MPI Chain Element structures - for MPI v2.0 products only
+****************************************************************************/
+
+typedef struct _MPI2_SGE_CHAIN32 {
+	U16 Length;
+	U8 NextChainOffset;
+	U8 Flags;
+	U32 Address;
+} MPI2_SGE_CHAIN32, *PTR_MPI2_SGE_CHAIN32,
+	Mpi2SGEChain32_t, *pMpi2SGEChain32_t;
+
+typedef struct _MPI2_SGE_CHAIN64 {
+	U16 Length;
+	U8 NextChainOffset;
+	U8 Flags;
+	U64 Address;
+} MPI2_SGE_CHAIN64, *PTR_MPI2_SGE_CHAIN64,
+	Mpi2SGEChain64_t, *pMpi2SGEChain64_t;
+
+typedef struct _MPI2_SGE_CHAIN_UNION {
+	U16 Length;
+	U8 NextChainOffset;
+	U8 Flags;
+	union {
+		U32 Address32;
+		U64 Address64;
+	} u;
+} MPI2_SGE_CHAIN_UNION,
+	*PTR_MPI2_SGE_CHAIN_UNION,
+	Mpi2SGEChainUnion_t,
+	*pMpi2SGEChainUnion_t;
+
+/****************************************************************************
+* MPI Transaction Context Element structures - for MPI v2.0 products only
+****************************************************************************/
+
+typedef struct _MPI2_SGE_TRANSACTION32 {
+	U8 Reserved;
+	U8 ContextSize;
+	U8 DetailsLength;
+	U8 Flags;
+	U32 TransactionContext[1];
+	U32 TransactionDetails[1];
+} MPI2_SGE_TRANSACTION32,
+	*PTR_MPI2_SGE_TRANSACTION32,
+	Mpi2SGETransaction32_t,
+	*pMpi2SGETransaction32_t;
+
+typedef struct _MPI2_SGE_TRANSACTION64 {
+	U8 Reserved;
+	U8 ContextSize;
+	U8 DetailsLength;
+	U8 Flags;
+	U32 TransactionContext[2];
+	U32 TransactionDetails[1];
+} MPI2_SGE_TRANSACTION64,
+	*PTR_MPI2_SGE_TRANSACTION64,
+	Mpi2SGETransaction64_t,
+	*pMpi2SGETransaction64_t;
+
+typedef struct _MPI2_SGE_TRANSACTION96 {
+	U8 Reserved;
+	U8 ContextSize;
+	U8 DetailsLength;
+	U8 Flags;
+	U32 TransactionContext[3];
+	U32 TransactionDetails[1];
+} MPI2_SGE_TRANSACTION96, *PTR_MPI2_SGE_TRANSACTION96,
+	Mpi2SGETransaction96_t, *pMpi2SGETransaction96_t;
+
+typedef struct _MPI2_SGE_TRANSACTION128 {
+	U8 Reserved;
+	U8 ContextSize;
+	U8 DetailsLength;
+	U8 Flags;
+	U32 TransactionContext[4];
+	U32 TransactionDetails[1];
+} MPI2_SGE_TRANSACTION128, *PTR_MPI2_SGE_TRANSACTION128,
+	Mpi2SGETransaction_t128, *pMpi2SGETransaction_t128;
+
+typedef struct _MPI2_SGE_TRANSACTION_UNION {
+	U8 Reserved;
+	U8 ContextSize;
+	U8 DetailsLength;
+	U8 Flags;
+	union {
+		U32 TransactionContext32[1];
+		U32 TransactionContext64[2];
+		U32 TransactionContext96[3];
+		U32 TransactionContext128[4];
+	} u;
+	U32 TransactionDetails[1];
+} MPI2_SGE_TRANSACTION_UNION,
+	*PTR_MPI2_SGE_TRANSACTION_UNION,
+	Mpi2SGETransactionUnion_t,
+	*pMpi2SGETransactionUnion_t;
+
+/****************************************************************************
+* MPI SGE union for IO SGL's - for MPI v2.0 products only
+****************************************************************************/
+
+typedef struct _MPI2_MPI_SGE_IO_UNION {
+	union {
+		MPI2_SGE_SIMPLE_UNION Simple;
+		MPI2_SGE_CHAIN_UNION Chain;
+	} u;
+} MPI2_MPI_SGE_IO_UNION, *PTR_MPI2_MPI_SGE_IO_UNION,
+	Mpi2MpiSGEIOUnion_t, *pMpi2MpiSGEIOUnion_t;
+
+/****************************************************************************
+* MPI SGE union for SGL's with Simple and Transaction elements - for MPI v2.0 products only
+****************************************************************************/
+
+typedef struct _MPI2_SGE_TRANS_SIMPLE_UNION {
+	union {
+		MPI2_SGE_SIMPLE_UNION Simple;
+		MPI2_SGE_TRANSACTION_UNION Transaction;
+	} u;
+} MPI2_SGE_TRANS_SIMPLE_UNION,
+	*PTR_MPI2_SGE_TRANS_SIMPLE_UNION,
+	Mpi2SGETransSimpleUnion_t,
+	*pMpi2SGETransSimpleUnion_t;
+
+/****************************************************************************
+* All MPI SGE types union
+****************************************************************************/
+
+typedef struct _MPI2_MPI_SGE_UNION {
+	union {
+		MPI2_SGE_SIMPLE_UNION Simple;
+		MPI2_SGE_CHAIN_UNION Chain;
+		MPI2_SGE_TRANSACTION_UNION Transaction;
+	} u;
+} MPI2_MPI_SGE_UNION, *PTR_MPI2_MPI_SGE_UNION,
+	Mpi2MpiSgeUnion_t, *pMpi2MpiSgeUnion_t;
+
+/****************************************************************************
+* MPI SGE field definition and masks
+****************************************************************************/
+
+/*Flags field bit definitions */
+
+#define MPI2_SGE_FLAGS_LAST_ELEMENT             (0x80)
+#define MPI2_SGE_FLAGS_END_OF_BUFFER            (0x40)
+#define MPI2_SGE_FLAGS_ELEMENT_TYPE_MASK        (0x30)
+#define MPI2_SGE_FLAGS_LOCAL_ADDRESS            (0x08)
+#define MPI2_SGE_FLAGS_DIRECTION                (0x04)
+#define MPI2_SGE_FLAGS_ADDRESS_SIZE             (0x02)
+#define MPI2_SGE_FLAGS_END_OF_LIST              (0x01)
+
+#define MPI2_SGE_FLAGS_SHIFT                    (24)
+
+#define MPI2_SGE_LENGTH_MASK                    (0x00FFFFFF)
+#define MPI2_SGE_CHAIN_LENGTH_MASK              (0x0000FFFF)
+
+/*Element Type */
+
+#define MPI2_SGE_FLAGS_TRANSACTION_ELEMENT      (0x00)
+#define MPI2_SGE_FLAGS_SIMPLE_ELEMENT           (0x10)
+#define MPI2_SGE_FLAGS_CHAIN_ELEMENT            (0x30)
+#define MPI2_SGE_FLAGS_ELEMENT_MASK             (0x30)
+
+/*Address location */
+
+#define MPI2_SGE_FLAGS_SYSTEM_ADDRESS           (0x00)
+
+/*Direction */
+
+#define MPI2_SGE_FLAGS_IOC_TO_HOST              (0x00)
+#define MPI2_SGE_FLAGS_HOST_TO_IOC              (0x04)
+
+#define MPI2_SGE_FLAGS_DEST (MPI2_SGE_FLAGS_IOC_TO_HOST)
+#define MPI2_SGE_FLAGS_SOURCE (MPI2_SGE_FLAGS_HOST_TO_IOC)
+
+/*Address Size */
+
+#define MPI2_SGE_FLAGS_32_BIT_ADDRESSING        (0x00)
+#define MPI2_SGE_FLAGS_64_BIT_ADDRESSING        (0x02)
+
+/*Context Size */
+
+#define MPI2_SGE_FLAGS_32_BIT_CONTEXT           (0x00)
+#define MPI2_SGE_FLAGS_64_BIT_CONTEXT           (0x02)
+#define MPI2_SGE_FLAGS_96_BIT_CONTEXT           (0x04)
+#define MPI2_SGE_FLAGS_128_BIT_CONTEXT          (0x06)
+
+#define MPI2_SGE_CHAIN_OFFSET_MASK              (0x00FF0000)
+#define MPI2_SGE_CHAIN_OFFSET_SHIFT             (16)
+
+/****************************************************************************
+* MPI SGE operation Macros
+****************************************************************************/
+
+/*SIMPLE FlagsLength manipulations... */
+#define MPI2_SGE_SET_FLAGS(f) ((U32)(f) << MPI2_SGE_FLAGS_SHIFT)
+#define MPI2_SGE_GET_FLAGS(f) (((f) & ~MPI2_SGE_LENGTH_MASK) >> \
+					MPI2_SGE_FLAGS_SHIFT)
+#define MPI2_SGE_LENGTH(f) ((f) & MPI2_SGE_LENGTH_MASK)
+#define MPI2_SGE_CHAIN_LENGTH(f) ((f) & MPI2_SGE_CHAIN_LENGTH_MASK)
+
+#define MPI2_SGE_SET_FLAGS_LENGTH(f, l) (MPI2_SGE_SET_FLAGS(f) | \
+					MPI2_SGE_LENGTH(l))
+
+#define MPI2_pSGE_GET_FLAGS(psg) MPI2_SGE_GET_FLAGS((psg)->FlagsLength)
+#define MPI2_pSGE_GET_LENGTH(psg) MPI2_SGE_LENGTH((psg)->FlagsLength)
+#define MPI2_pSGE_SET_FLAGS_LENGTH(psg, f, l) ((psg)->FlagsLength = \
+					MPI2_SGE_SET_FLAGS_LENGTH(f, l))
+
+/*CAUTION - The following are READ-MODIFY-WRITE! */
+#define MPI2_pSGE_SET_FLAGS(psg, f) ((psg)->FlagsLength |= \
+					MPI2_SGE_SET_FLAGS(f))
+#define MPI2_pSGE_SET_LENGTH(psg, l) ((psg)->FlagsLength |= \
+					MPI2_SGE_LENGTH(l))
+
+#define MPI2_GET_CHAIN_OFFSET(x) ((x & MPI2_SGE_CHAIN_OFFSET_MASK) >> \
+					MPI2_SGE_CHAIN_OFFSET_SHIFT)
+
+/*****************************************************************************
+*
+*       Fusion-MPT IEEE Scatter Gather Elements
+*
+*****************************************************************************/
+
+/****************************************************************************
+* IEEE Simple Element structures
+****************************************************************************/
+
+/*MPI2_IEEE_SGE_SIMPLE32 is for MPI v2.0 products only */
+typedef struct _MPI2_IEEE_SGE_SIMPLE32 {
+	U32 Address;
+	U32 FlagsLength;
+} MPI2_IEEE_SGE_SIMPLE32, *PTR_MPI2_IEEE_SGE_SIMPLE32,
+	Mpi2IeeeSgeSimple32_t, *pMpi2IeeeSgeSimple32_t;
+
+typedef struct _MPI2_IEEE_SGE_SIMPLE64 {
+	U64 Address;
+	U32 Length;
+	U16 Reserved1;
+	U8 Reserved2;
+	U8 Flags;
+} MPI2_IEEE_SGE_SIMPLE64, *PTR_MPI2_IEEE_SGE_SIMPLE64,
+	Mpi2IeeeSgeSimple64_t, *pMpi2IeeeSgeSimple64_t;
+
+typedef union _MPI2_IEEE_SGE_SIMPLE_UNION {
+	MPI2_IEEE_SGE_SIMPLE32 Simple32;
+	MPI2_IEEE_SGE_SIMPLE64 Simple64;
+} MPI2_IEEE_SGE_SIMPLE_UNION,
+	*PTR_MPI2_IEEE_SGE_SIMPLE_UNION,
+	Mpi2IeeeSgeSimpleUnion_t,
+	*pMpi2IeeeSgeSimpleUnion_t;
+
+/****************************************************************************
+* IEEE Chain Element structures
+****************************************************************************/
+
+/*MPI2_IEEE_SGE_CHAIN32 is for MPI v2.0 products only */
+typedef MPI2_IEEE_SGE_SIMPLE32 MPI2_IEEE_SGE_CHAIN32;
+
+/*MPI2_IEEE_SGE_CHAIN64 is for MPI v2.0 products only */
+typedef MPI2_IEEE_SGE_SIMPLE64 MPI2_IEEE_SGE_CHAIN64;
+
+typedef union _MPI2_IEEE_SGE_CHAIN_UNION {
+	MPI2_IEEE_SGE_CHAIN32 Chain32;
+	MPI2_IEEE_SGE_CHAIN64 Chain64;
+} MPI2_IEEE_SGE_CHAIN_UNION,
+	*PTR_MPI2_IEEE_SGE_CHAIN_UNION,
+	Mpi2IeeeSgeChainUnion_t,
+	*pMpi2IeeeSgeChainUnion_t;
+
+/*MPI25_IEEE_SGE_CHAIN64 is for MPI v2.5 products only */
+typedef struct _MPI25_IEEE_SGE_CHAIN64 {
+	U64 Address;
+	U32 Length;
+	U16 Reserved1;
+	U8 NextChainOffset;
+	U8 Flags;
+} MPI25_IEEE_SGE_CHAIN64,
+	*PTR_MPI25_IEEE_SGE_CHAIN64,
+	Mpi25IeeeSgeChain64_t,
+	*pMpi25IeeeSgeChain64_t;
+
+/****************************************************************************
+* All IEEE SGE types union
+****************************************************************************/
+
+/*MPI2_IEEE_SGE_UNION is for MPI v2.0 products only */
+typedef struct _MPI2_IEEE_SGE_UNION {
+	union {
+		MPI2_IEEE_SGE_SIMPLE_UNION Simple;
+		MPI2_IEEE_SGE_CHAIN_UNION Chain;
+	} u;
+} MPI2_IEEE_SGE_UNION, *PTR_MPI2_IEEE_SGE_UNION,
+	Mpi2IeeeSgeUnion_t, *pMpi2IeeeSgeUnion_t;
+
+/****************************************************************************
+* IEEE SGE union for IO SGL's
+****************************************************************************/
+
+typedef union _MPI25_SGE_IO_UNION {
+	MPI2_IEEE_SGE_SIMPLE64 IeeeSimple;
+	MPI25_IEEE_SGE_CHAIN64 IeeeChain;
+} MPI25_SGE_IO_UNION, *PTR_MPI25_SGE_IO_UNION,
+	Mpi25SGEIOUnion_t, *pMpi25SGEIOUnion_t;
+
+/****************************************************************************
+* IEEE SGE field definitions and masks
+****************************************************************************/
+
+/*Flags field bit definitions */
+
+#define MPI2_IEEE_SGE_FLAGS_ELEMENT_TYPE_MASK   (0x80)
+#define MPI25_IEEE_SGE_FLAGS_END_OF_LIST        (0x40)
+
+#define MPI2_IEEE32_SGE_FLAGS_SHIFT             (24)
+
+#define MPI2_IEEE32_SGE_LENGTH_MASK             (0x00FFFFFF)
+
+/*Element Type */
+
+#define MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT      (0x00)
+#define MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT       (0x80)
+
+/*Data Location Address Space */
+
+#define MPI2_IEEE_SGE_FLAGS_ADDR_MASK           (0x03)
+#define MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR         (0x00)
+#define MPI2_IEEE_SGE_FLAGS_IOCDDR_ADDR         (0x01)
+#define MPI2_IEEE_SGE_FLAGS_IOCPLB_ADDR         (0x02)
+#define MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR      (0x03)
+#define MPI2_IEEE_SGE_FLAGS_SYSTEMPLBPCI_ADDR   (0x03)
+#define MPI2_IEEE_SGE_FLAGS_SYSTEMPLBCPI_ADDR \
+	 (MPI2_IEEE_SGE_FLAGS_SYSTEMPLBPCI_ADDR)
+
+/****************************************************************************
+* IEEE SGE operation Macros
+****************************************************************************/
+
+/*SIMPLE FlagsLength manipulations... */
+#define MPI2_IEEE32_SGE_SET_FLAGS(f) ((U32)(f) << MPI2_IEEE32_SGE_FLAGS_SHIFT)
+#define MPI2_IEEE32_SGE_GET_FLAGS(f) (((f) & ~MPI2_IEEE32_SGE_LENGTH_MASK) \
+				 >> MPI2_IEEE32_SGE_FLAGS_SHIFT)
+#define MPI2_IEEE32_SGE_LENGTH(f)    ((f) & MPI2_IEEE32_SGE_LENGTH_MASK)
+
+#define MPI2_IEEE32_SGE_SET_FLAGS_LENGTH(f, l) (MPI2_IEEE32_SGE_SET_FLAGS(f) |\
+						 MPI2_IEEE32_SGE_LENGTH(l))
+
+#define MPI2_IEEE32_pSGE_GET_FLAGS(psg) \
+			MPI2_IEEE32_SGE_GET_FLAGS((psg)->FlagsLength)
+#define MPI2_IEEE32_pSGE_GET_LENGTH(psg) \
+			MPI2_IEEE32_SGE_LENGTH((psg)->FlagsLength)
+#define MPI2_IEEE32_pSGE_SET_FLAGS_LENGTH(psg, f, l) ((psg)->FlagsLength = \
+					MPI2_IEEE32_SGE_SET_FLAGS_LENGTH(f, l))
+
+/*CAUTION - The following are READ-MODIFY-WRITE! */
+#define MPI2_IEEE32_pSGE_SET_FLAGS(psg, f) ((psg)->FlagsLength |= \
+					MPI2_IEEE32_SGE_SET_FLAGS(f))
+#define MPI2_IEEE32_pSGE_SET_LENGTH(psg, l) ((psg)->FlagsLength |= \
+					MPI2_IEEE32_SGE_LENGTH(l))
+
+/*****************************************************************************
+*
+*       Fusion-MPT MPI/IEEE Scatter Gather Unions
+*
+*****************************************************************************/
+
+typedef union _MPI2_SIMPLE_SGE_UNION {
+	MPI2_SGE_SIMPLE_UNION MpiSimple;
+	MPI2_IEEE_SGE_SIMPLE_UNION IeeeSimple;
+} MPI2_SIMPLE_SGE_UNION, *PTR_MPI2_SIMPLE_SGE_UNION,
+	Mpi2SimpleSgeUntion_t, *pMpi2SimpleSgeUntion_t;
+
+typedef union _MPI2_SGE_IO_UNION {
+	MPI2_SGE_SIMPLE_UNION MpiSimple;
+	MPI2_SGE_CHAIN_UNION MpiChain;
+	MPI2_IEEE_SGE_SIMPLE_UNION IeeeSimple;
+	MPI2_IEEE_SGE_CHAIN_UNION IeeeChain;
+} MPI2_SGE_IO_UNION, *PTR_MPI2_SGE_IO_UNION,
+	Mpi2SGEIOUnion_t, *pMpi2SGEIOUnion_t;
+
+/****************************************************************************
+*
+* Values for SGLFlags field, used in many request messages with an SGL
+*
+****************************************************************************/
+
+/*values for MPI SGL Data Location Address Space subfield */
+#define MPI2_SGLFLAGS_ADDRESS_SPACE_MASK            (0x0C)
+#define MPI2_SGLFLAGS_SYSTEM_ADDRESS_SPACE          (0x00)
+#define MPI2_SGLFLAGS_IOCDDR_ADDRESS_SPACE          (0x04)
+#define MPI2_SGLFLAGS_IOCPLB_ADDRESS_SPACE          (0x08)
+#define MPI2_SGLFLAGS_IOCPLBNTA_ADDRESS_SPACE       (0x0C)
+/*values for SGL Type subfield */
+#define MPI2_SGLFLAGS_SGL_TYPE_MASK                 (0x03)
+#define MPI2_SGLFLAGS_SGL_TYPE_MPI                  (0x00)
+#define MPI2_SGLFLAGS_SGL_TYPE_IEEE32               (0x01)
+#define MPI2_SGLFLAGS_SGL_TYPE_IEEE64               (0x02)
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
new file mode 100644
index 000000000000..d8b2c3eedb57
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
@@ -0,0 +1,3323 @@
+/*
+ * Copyright (c) 2000-2011 LSI Corporation.
+ *
+ *
+ *          Name:  mpi2_cnfg.h
+ *         Title:  MPI Configuration messages and pages
+ * Creation Date:  November 10, 2006
+ *
+ *   mpi2_cnfg.h Version:  02.00.22
+ *
+ * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
+ *       prefix are for use only on MPI v2.5 products, and must not be used
+ *       with MPI v2.0 products. Unless otherwise noted, names beginning with
+ *       MPI2 or Mpi2 are for use with both MPI v2.0 and MPI v2.5 products.
+ *
+ * Version History
+ * ---------------
+ *
+ * Date      Version   Description
+ * --------  --------  ------------------------------------------------------
+ * 04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ * 06-04-07  02.00.01  Added defines for SAS IO Unit Page 2 PhyFlags.
+ *                     Added Manufacturing Page 11.
+ *                     Added MPI2_SAS_EXPANDER0_FLAGS_CONNECTOR_END_DEVICE
+ *                     define.
+ * 06-26-07  02.00.02  Adding generic structure for product-specific
+ *                     Manufacturing pages: MPI2_CONFIG_PAGE_MANUFACTURING_PS.
+ *                     Rework of BIOS Page 2 configuration page.
+ *                     Fixed MPI2_BIOSPAGE2_BOOT_DEVICE to be a union of the
+ *                     forms.
+ *                     Added configuration pages IOC Page 8 and Driver
+ *                     Persistent Mapping Page 0.
+ * 08-31-07  02.00.03  Modified configuration pages dealing with Integrated
+ *                     RAID (Manufacturing Page 4, RAID Volume Pages 0 and 1,
+ *                     RAID Physical Disk Pages 0 and 1, RAID Configuration
+ *                     Page 0).
+ *                     Added new value for AccessStatus field of SAS Device
+ *                     Page 0 (_SATA_NEEDS_INITIALIZATION).
+ * 10-31-07  02.00.04  Added missing SEPDevHandle field to
+ *                     MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0.
+ * 12-18-07  02.00.05  Modified IO Unit Page 0 to use 32-bit version fields for
+ *                     NVDATA.
+ *                     Modified IOC Page 7 to use masks and added field for
+ *                     SASBroadcastPrimitiveMasks.
+ *                     Added MPI2_CONFIG_PAGE_BIOS_4.
+ *                     Added MPI2_CONFIG_PAGE_LOG_0.
+ * 02-29-08  02.00.06  Modified various names to make them 32-character unique.
+ *                     Added SAS Device IDs.
+ *                     Updated Integrated RAID configuration pages including
+ *                     Manufacturing Page 4, IOC Page 6, and RAID Configuration
+ *                     Page 0.
+ * 05-21-08  02.00.07  Added define MPI2_MANPAGE4_MIX_SSD_SAS_SATA.
+ *                     Added define MPI2_MANPAGE4_PHYSDISK_128MB_COERCION.
+ *                     Fixed define MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING.
+ *                     Added missing MaxNumRoutedSasAddresses field to
+ *                     MPI2_CONFIG_PAGE_EXPANDER_0.
+ *                     Added SAS Port Page 0.
+ *                     Modified structure layout for
+ *                     MPI2_CONFIG_PAGE_DRIVER_MAPPING_0.
+ * 06-27-08  02.00.08  Changed MPI2_CONFIG_PAGE_RD_PDISK_1 to use
+ *                     MPI2_RAID_PHYS_DISK1_PATH_MAX to size the array.
+ * 10-02-08  02.00.09  Changed MPI2_RAID_PGAD_CONFIGNUM_MASK from 0x0000FFFF
+ *                     to 0x000000FF.
+ *                     Added two new values for the Physical Disk Coercion Size
+ *                     bits in the Flags field of Manufacturing Page 4.
+ *                     Added product-specific Manufacturing pages 16 to 31.
+ *                     Modified Flags bits for controlling write cache on SATA
+ *                     drives in IO Unit Page 1.
+ *                     Added new bit to AdditionalControlFlags of SAS IO Unit
+ *                     Page 1 to control Invalid Topology Correction.
+ *                     Added additional defines for RAID Volume Page 0
+ *                     VolumeStatusFlags field.
+ *                     Modified meaning of RAID Volume Page 0 VolumeSettings
+ *                     define for auto-configure of hot-swap drives.
+ *                     Added SupportedPhysDisks field to RAID Volume Page 1 and
+ *                     added related defines.
+ *                     Added PhysDiskAttributes field (and related defines) to
+ *                     RAID Physical Disk Page 0.
+ *                     Added MPI2_SAS_PHYINFO_PHY_VACANT define.
+ *                     Added three new DiscoveryStatus bits for SAS IO Unit
+ *                     Page 0 and SAS Expander Page 0.
+ *                     Removed multiplexing information from SAS IO Unit pages.
+ *                     Added BootDeviceWaitTime field to SAS IO Unit Page 4.
+ *                     Removed Zone Address Resolved bit from PhyInfo and from
+ *                     Expander Page 0 Flags field.
+ *                     Added two new AccessStatus values to SAS Device Page 0
+ *                     for indicating routing problems. Added 3 reserved words
+ *                     to this page.
+ * 01-19-09  02.00.10  Fixed defines for GPIOVal field of IO Unit Page 3.
+ *                     Inserted missing reserved field into structure for IOC
+ *                     Page 6.
+ *                     Added more pending task bits to RAID Volume Page 0
+ *                     VolumeStatusFlags defines.
+ *                     Added MPI2_PHYSDISK0_STATUS_FLAG_NOT_CERTIFIED define.
+ *                     Added a new DiscoveryStatus bit for SAS IO Unit Page 0
+ *                     and SAS Expander Page 0 to flag a downstream initiator
+ *                     when in simplified routing mode.
+ *                     Removed SATA Init Failure defines for DiscoveryStatus
+ *                     fields of SAS IO Unit Page 0 and SAS Expander Page 0.
+ *                     Added MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED define.
+ *                     Added PortGroups, DmaGroup, and ControlGroup fields to
+ *                     SAS Device Page 0.
+ * 05-06-09  02.00.11  Added structures and defines for IO Unit Page 5 and IO
+ *                     Unit Page 6.
+ *                     Added expander reduced functionality data to SAS
+ *                     Expander Page 0.
+ *                     Added SAS PHY Page 2 and SAS PHY Page 3.
+ * 07-30-09  02.00.12  Added IO Unit Page 7.
+ *                     Added new device ids.
+ *                     Added SAS IO Unit Page 5.
+ *                     Added partial and slumber power management capable flags
+ *                     to SAS Device Page 0 Flags field.
+ *                     Added PhyInfo defines for power condition.
+ *                     Added Ethernet configuration pages.
+ * 10-28-09  02.00.13  Added MPI2_IOUNITPAGE1_ENABLE_HOST_BASED_DISCOVERY.
+ *                     Added SAS PHY Page 4 structure and defines.
+ * 02-10-10  02.00.14  Modified the comments for the configuration page
+ *                     structures that contain an array of data. The host
+ *                     should use the "count" field in the page data (e.g. the
+ *                     NumPhys field) to determine the number of valid elements
+ *                     in the array.
+ *                     Added/modified some MPI2_MFGPAGE_DEVID_SAS defines.
+ *                     Added PowerManagementCapabilities to IO Unit Page 7.
+ *                     Added PortWidthModGroup field to
+ *                     MPI2_SAS_IO_UNIT5_PHY_PM_SETTINGS.
+ *                     Added MPI2_CONFIG_PAGE_SASIOUNIT_6 and related defines.
+ *                     Added MPI2_CONFIG_PAGE_SASIOUNIT_7 and related defines.
+ *                     Added MPI2_CONFIG_PAGE_SASIOUNIT_8 and related defines.
+ * 05-12-10  02.00.15  Added MPI2_RAIDVOL0_STATUS_FLAG_VOL_NOT_CONSISTENT
+ *                     define.
+ *                     Added MPI2_PHYSDISK0_INCOMPATIBLE_MEDIA_TYPE define.
+ *                     Added MPI2_SAS_NEG_LINK_RATE_UNSUPPORTED_PHY define.
+ * 08-11-10  02.00.16  Removed IO Unit Page 1 device path (multi-pathing)
+ *                     defines.
+ * 11-10-10  02.00.17  Added ReceptacleID field (replacing Reserved1) to
+ *                     MPI2_MANPAGE7_CONNECTOR_INFO and reworked defines for
+ *                     the Pinout field.
+ *                     Added BoardTemperature and BoardTemperatureUnits fields
+ *                     to MPI2_CONFIG_PAGE_IO_UNIT_7.
+ *                     Added MPI2_CONFIG_EXTPAGETYPE_EXT_MANUFACTURING define
+ *                     and MPI2_CONFIG_PAGE_EXT_MAN_PS structure.
+ * 02-23-11  02.00.18  Added ProxyVF_ID field to MPI2_CONFIG_REQUEST.
+ *                     Added IO Unit Page 8, IO Unit Page 9,
+ *                     and IO Unit Page 10.
+ *                     Added SASNotifyPrimitiveMasks field to
+ *                     MPI2_CONFIG_PAGE_IOC_7.
+ * 03-09-11  02.00.19  Fixed IO Unit Page 10 (to match the spec).
+ * 05-25-11  02.00.20  Cleaned up a few comments.
+ * 08-24-11  02.00.21  Marked the IO Unit Page 7 PowerManagementCapabilities
+ *                     for PCIe link as obsolete.
+ *                     Added SpinupFlags field containing a Disable Spin-up bit
+ *                     to the MPI2_SAS_IOUNIT4_SPINUP_GROUP fields of SAS IO
+ *                     Unit Page 4.
+ * 11-18-11  02.00.22  Added define MPI2_IOCPAGE6_CAP_FLAGS_4K_SECTORS_SUPPORT.
+ *                     Added UEFIVersion field to BIOS Page 1 and defined new
+ *                     BiosOptions bits.
+ *                     Incorporating additions for MPI v2.5.
+ * --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_CNFG_H
+#define MPI2_CNFG_H
+
+/*****************************************************************************
+*  Configuration Page Header and defines
+*****************************************************************************/
+
+/*Config Page Header */
+typedef struct _MPI2_CONFIG_PAGE_HEADER {
+	U8                 PageVersion;                /*0x00 */
+	U8                 PageLength;                 /*0x01 */
+	U8                 PageNumber;                 /*0x02 */
+	U8                 PageType;                   /*0x03 */
+} MPI2_CONFIG_PAGE_HEADER, *PTR_MPI2_CONFIG_PAGE_HEADER,
+	Mpi2ConfigPageHeader_t, *pMpi2ConfigPageHeader_t;
+
+typedef union _MPI2_CONFIG_PAGE_HEADER_UNION {
+	MPI2_CONFIG_PAGE_HEADER  Struct;
+	U8                       Bytes[4];
+	U16                      Word16[2];
+	U32                      Word32;
+} MPI2_CONFIG_PAGE_HEADER_UNION, *PTR_MPI2_CONFIG_PAGE_HEADER_UNION,
+	Mpi2ConfigPageHeaderUnion, *pMpi2ConfigPageHeaderUnion;
+
+/*Extended Config Page Header */
+typedef struct _MPI2_CONFIG_EXTENDED_PAGE_HEADER {
+	U8                  PageVersion;                /*0x00 */
+	U8                  Reserved1;                  /*0x01 */
+	U8                  PageNumber;                 /*0x02 */
+	U8                  PageType;                   /*0x03 */
+	U16                 ExtPageLength;              /*0x04 */
+	U8                  ExtPageType;                /*0x06 */
+	U8                  Reserved2;                  /*0x07 */
+} MPI2_CONFIG_EXTENDED_PAGE_HEADER,
+	*PTR_MPI2_CONFIG_EXTENDED_PAGE_HEADER,
+	Mpi2ConfigExtendedPageHeader_t,
+	*pMpi2ConfigExtendedPageHeader_t;
+
+typedef union _MPI2_CONFIG_EXT_PAGE_HEADER_UNION {
+	MPI2_CONFIG_PAGE_HEADER          Struct;
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER Ext;
+	U8                               Bytes[8];
+	U16                              Word16[4];
+	U32                              Word32[2];
+} MPI2_CONFIG_EXT_PAGE_HEADER_UNION,
+	*PTR_MPI2_CONFIG_EXT_PAGE_HEADER_UNION,
+	Mpi2ConfigPageExtendedHeaderUnion,
+	*pMpi2ConfigPageExtendedHeaderUnion;
+
+
+/*PageType field values */
+#define MPI2_CONFIG_PAGEATTR_READ_ONLY              (0x00)
+#define MPI2_CONFIG_PAGEATTR_CHANGEABLE             (0x10)
+#define MPI2_CONFIG_PAGEATTR_PERSISTENT             (0x20)
+#define MPI2_CONFIG_PAGEATTR_MASK                   (0xF0)
+
+#define MPI2_CONFIG_PAGETYPE_IO_UNIT                (0x00)
+#define MPI2_CONFIG_PAGETYPE_IOC                    (0x01)
+#define MPI2_CONFIG_PAGETYPE_BIOS                   (0x02)
+#define MPI2_CONFIG_PAGETYPE_RAID_VOLUME            (0x08)
+#define MPI2_CONFIG_PAGETYPE_MANUFACTURING          (0x09)
+#define MPI2_CONFIG_PAGETYPE_RAID_PHYSDISK          (0x0A)
+#define MPI2_CONFIG_PAGETYPE_EXTENDED               (0x0F)
+#define MPI2_CONFIG_PAGETYPE_MASK                   (0x0F)
+
+#define MPI2_CONFIG_TYPENUM_MASK                    (0x0FFF)
+
+
+/*ExtPageType field values */
+#define MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT         (0x10)
+#define MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER        (0x11)
+#define MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE          (0x12)
+#define MPI2_CONFIG_EXTPAGETYPE_SAS_PHY             (0x13)
+#define MPI2_CONFIG_EXTPAGETYPE_LOG                 (0x14)
+#define MPI2_CONFIG_EXTPAGETYPE_ENCLOSURE           (0x15)
+#define MPI2_CONFIG_EXTPAGETYPE_RAID_CONFIG         (0x16)
+#define MPI2_CONFIG_EXTPAGETYPE_DRIVER_MAPPING      (0x17)
+#define MPI2_CONFIG_EXTPAGETYPE_SAS_PORT            (0x18)
+#define MPI2_CONFIG_EXTPAGETYPE_ETHERNET            (0x19)
+#define MPI2_CONFIG_EXTPAGETYPE_EXT_MANUFACTURING   (0x1A)
+
+
+/*****************************************************************************
+*  PageAddress defines
+*****************************************************************************/
+
+/*RAID Volume PageAddress format */
+#define MPI2_RAID_VOLUME_PGAD_FORM_MASK             (0xF0000000)
+#define MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE  (0x00000000)
+#define MPI2_RAID_VOLUME_PGAD_FORM_HANDLE           (0x10000000)
+
+#define MPI2_RAID_VOLUME_PGAD_HANDLE_MASK           (0x0000FFFF)
+
+
+/*RAID Physical Disk PageAddress format */
+#define MPI2_PHYSDISK_PGAD_FORM_MASK                    (0xF0000000)
+#define MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM    (0x00000000)
+#define MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM             (0x10000000)
+#define MPI2_PHYSDISK_PGAD_FORM_DEVHANDLE               (0x20000000)
+
+#define MPI2_PHYSDISK_PGAD_PHYSDISKNUM_MASK             (0x000000FF)
+#define MPI2_PHYSDISK_PGAD_DEVHANDLE_MASK               (0x0000FFFF)
+
+
+/*SAS Expander PageAddress format */
+#define MPI2_SAS_EXPAND_PGAD_FORM_MASK              (0xF0000000)
+#define MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL     (0x00000000)
+#define MPI2_SAS_EXPAND_PGAD_FORM_HNDL_PHY_NUM      (0x10000000)
+#define MPI2_SAS_EXPAND_PGAD_FORM_HNDL              (0x20000000)
+
+#define MPI2_SAS_EXPAND_PGAD_HANDLE_MASK            (0x0000FFFF)
+#define MPI2_SAS_EXPAND_PGAD_PHYNUM_MASK            (0x00FF0000)
+#define MPI2_SAS_EXPAND_PGAD_PHYNUM_SHIFT           (16)
+
+
+/*SAS Device PageAddress format */
+#define MPI2_SAS_DEVICE_PGAD_FORM_MASK              (0xF0000000)
+#define MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE   (0x00000000)
+#define MPI2_SAS_DEVICE_PGAD_FORM_HANDLE            (0x20000000)
+
+#define MPI2_SAS_DEVICE_PGAD_HANDLE_MASK            (0x0000FFFF)
+
+
+/*SAS PHY PageAddress format */
+#define MPI2_SAS_PHY_PGAD_FORM_MASK                 (0xF0000000)
+#define MPI2_SAS_PHY_PGAD_FORM_PHY_NUMBER           (0x00000000)
+#define MPI2_SAS_PHY_PGAD_FORM_PHY_TBL_INDEX        (0x10000000)
+
+#define MPI2_SAS_PHY_PGAD_PHY_NUMBER_MASK           (0x000000FF)
+#define MPI2_SAS_PHY_PGAD_PHY_TBL_INDEX_MASK        (0x0000FFFF)
+
+
+/*SAS Port PageAddress format */
+#define MPI2_SASPORT_PGAD_FORM_MASK                 (0xF0000000)
+#define MPI2_SASPORT_PGAD_FORM_GET_NEXT_PORT        (0x00000000)
+#define MPI2_SASPORT_PGAD_FORM_PORT_NUM             (0x10000000)
+
+#define MPI2_SASPORT_PGAD_PORTNUMBER_MASK           (0x00000FFF)
+
+
+/*SAS Enclosure PageAddress format */
+#define MPI2_SAS_ENCLOS_PGAD_FORM_MASK              (0xF0000000)
+#define MPI2_SAS_ENCLOS_PGAD_FORM_GET_NEXT_HANDLE   (0x00000000)
+#define MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE            (0x10000000)
+
+#define MPI2_SAS_ENCLOS_PGAD_HANDLE_MASK            (0x0000FFFF)
+
+
+/*RAID Configuration PageAddress format */
+#define MPI2_RAID_PGAD_FORM_MASK                    (0xF0000000)
+#define MPI2_RAID_PGAD_FORM_GET_NEXT_CONFIGNUM      (0x00000000)
+#define MPI2_RAID_PGAD_FORM_CONFIGNUM               (0x10000000)
+#define MPI2_RAID_PGAD_FORM_ACTIVE_CONFIG           (0x20000000)
+
+#define MPI2_RAID_PGAD_CONFIGNUM_MASK               (0x000000FF)
+
+
+/*Driver Persistent Mapping PageAddress format */
+#define MPI2_DPM_PGAD_FORM_MASK                     (0xF0000000)
+#define MPI2_DPM_PGAD_FORM_ENTRY_RANGE              (0x00000000)
+
+#define MPI2_DPM_PGAD_ENTRY_COUNT_MASK              (0x0FFF0000)
+#define MPI2_DPM_PGAD_ENTRY_COUNT_SHIFT             (16)
+#define MPI2_DPM_PGAD_START_ENTRY_MASK              (0x0000FFFF)
+
+
+/*Ethernet PageAddress format */
+#define MPI2_ETHERNET_PGAD_FORM_MASK                (0xF0000000)
+#define MPI2_ETHERNET_PGAD_FORM_IF_NUM              (0x00000000)
+
+#define MPI2_ETHERNET_PGAD_IF_NUMBER_MASK           (0x000000FF)
+
+
+
+/****************************************************************************
+*  Configuration messages
+****************************************************************************/
+
+/*Configuration Request Message */
+typedef struct _MPI2_CONFIG_REQUEST {
+	U8                      Action;                     /*0x00 */
+	U8                      SGLFlags;                   /*0x01 */
+	U8                      ChainOffset;                /*0x02 */
+	U8                      Function;                   /*0x03 */
+	U16                     ExtPageLength;              /*0x04 */
+	U8                      ExtPageType;                /*0x06 */
+	U8                      MsgFlags;                   /*0x07 */
+	U8                      VP_ID;                      /*0x08 */
+	U8                      VF_ID;                      /*0x09 */
+	U16                     Reserved1;                  /*0x0A */
+	U8                      Reserved2;                  /*0x0C */
+	U8                      ProxyVF_ID;                 /*0x0D */
+	U16                     Reserved4;                  /*0x0E */
+	U32                     Reserved3;                  /*0x10 */
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x14 */
+	U32                     PageAddress;                /*0x18 */
+	MPI2_SGE_IO_UNION       PageBufferSGE;              /*0x1C */
+} MPI2_CONFIG_REQUEST, *PTR_MPI2_CONFIG_REQUEST,
+	Mpi2ConfigRequest_t, *pMpi2ConfigRequest_t;
+
+/*values for the Action field */
+#define MPI2_CONFIG_ACTION_PAGE_HEADER              (0x00)
+#define MPI2_CONFIG_ACTION_PAGE_READ_CURRENT        (0x01)
+#define MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT       (0x02)
+#define MPI2_CONFIG_ACTION_PAGE_DEFAULT             (0x03)
+#define MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM         (0x04)
+#define MPI2_CONFIG_ACTION_PAGE_READ_DEFAULT        (0x05)
+#define MPI2_CONFIG_ACTION_PAGE_READ_NVRAM          (0x06)
+#define MPI2_CONFIG_ACTION_PAGE_GET_CHANGEABLE      (0x07)
+
+/*use MPI2_SGLFLAGS_ defines from mpi2.h for the SGLFlags field */
+
+
+/*Config Reply Message */
+typedef struct _MPI2_CONFIG_REPLY {
+	U8                      Action;                     /*0x00 */
+	U8                      SGLFlags;                   /*0x01 */
+	U8                      MsgLength;                  /*0x02 */
+	U8                      Function;                   /*0x03 */
+	U16                     ExtPageLength;              /*0x04 */
+	U8                      ExtPageType;                /*0x06 */
+	U8                      MsgFlags;                   /*0x07 */
+	U8                      VP_ID;                      /*0x08 */
+	U8                      VF_ID;                      /*0x09 */
+	U16                     Reserved1;                  /*0x0A */
+	U16                     Reserved2;                  /*0x0C */
+	U16                     IOCStatus;                  /*0x0E */
+	U32                     IOCLogInfo;                 /*0x10 */
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x14 */
+} MPI2_CONFIG_REPLY, *PTR_MPI2_CONFIG_REPLY,
+	Mpi2ConfigReply_t, *pMpi2ConfigReply_t;
+
+
+
+/*****************************************************************************
+*
+*              C o n f i g u r a t i o n    P a g e s
+*
+*****************************************************************************/
+
+/****************************************************************************
+*  Manufacturing Config pages
+****************************************************************************/
+
+#define MPI2_MFGPAGE_VENDORID_LSI                   (0x1000)
+
+/*MPI v2.0 SAS products */
+#define MPI2_MFGPAGE_DEVID_SAS2004                  (0x0070)
+#define MPI2_MFGPAGE_DEVID_SAS2008                  (0x0072)
+#define MPI2_MFGPAGE_DEVID_SAS2108_1                (0x0074)
+#define MPI2_MFGPAGE_DEVID_SAS2108_2                (0x0076)
+#define MPI2_MFGPAGE_DEVID_SAS2108_3                (0x0077)
+#define MPI2_MFGPAGE_DEVID_SAS2116_1                (0x0064)
+#define MPI2_MFGPAGE_DEVID_SAS2116_2                (0x0065)
+
+#define MPI2_MFGPAGE_DEVID_SSS6200                  (0x007E)
+
+#define MPI2_MFGPAGE_DEVID_SAS2208_1                (0x0080)
+#define MPI2_MFGPAGE_DEVID_SAS2208_2                (0x0081)
+#define MPI2_MFGPAGE_DEVID_SAS2208_3                (0x0082)
+#define MPI2_MFGPAGE_DEVID_SAS2208_4                (0x0083)
+#define MPI2_MFGPAGE_DEVID_SAS2208_5                (0x0084)
+#define MPI2_MFGPAGE_DEVID_SAS2208_6                (0x0085)
+#define MPI2_MFGPAGE_DEVID_SAS2308_1                (0x0086)
+#define MPI2_MFGPAGE_DEVID_SAS2308_2                (0x0087)
+#define MPI2_MFGPAGE_DEVID_SAS2308_3                (0x006E)
+
+/*MPI v2.5 SAS products */
+#define MPI25_MFGPAGE_DEVID_SAS3004                 (0x0096)
+#define MPI25_MFGPAGE_DEVID_SAS3008                 (0x0097)
+#define MPI25_MFGPAGE_DEVID_SAS3108_1               (0x0090)
+#define MPI25_MFGPAGE_DEVID_SAS3108_2               (0x0091)
+#define MPI25_MFGPAGE_DEVID_SAS3108_5               (0x0094)
+#define MPI25_MFGPAGE_DEVID_SAS3108_6               (0x0095)
+
+
+
+
+/*Manufacturing Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_0 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U8                      ChipName[16];               /*0x04 */
+	U8                      ChipRevision[8];            /*0x14 */
+	U8                      BoardName[16];              /*0x1C */
+	U8                      BoardAssembly[16];          /*0x2C */
+	U8                      BoardTracerNumber[16];      /*0x3C */
+} MPI2_CONFIG_PAGE_MAN_0,
+	*PTR_MPI2_CONFIG_PAGE_MAN_0,
+	Mpi2ManufacturingPage0_t,
+	*pMpi2ManufacturingPage0_t;
+
+#define MPI2_MANUFACTURING0_PAGEVERSION                (0x00)
+
+
+/*Manufacturing Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_1 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U8                      VPD[256];                   /*0x04 */
+} MPI2_CONFIG_PAGE_MAN_1,
+	*PTR_MPI2_CONFIG_PAGE_MAN_1,
+	Mpi2ManufacturingPage1_t,
+	*pMpi2ManufacturingPage1_t;
+
+#define MPI2_MANUFACTURING1_PAGEVERSION                (0x00)
+
+
+typedef struct _MPI2_CHIP_REVISION_ID {
+	U16 DeviceID;                                       /*0x00 */
+	U8  PCIRevisionID;                                  /*0x02 */
+	U8  Reserved;                                       /*0x03 */
+} MPI2_CHIP_REVISION_ID, *PTR_MPI2_CHIP_REVISION_ID,
+	Mpi2ChipRevisionId_t, *pMpi2ChipRevisionId_t;
+
+
+/*Manufacturing Page 2 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check Header.PageLength at runtime.
+ */
+#ifndef MPI2_MAN_PAGE_2_HW_SETTINGS_WORDS
+#define MPI2_MAN_PAGE_2_HW_SETTINGS_WORDS   (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_2 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	MPI2_CHIP_REVISION_ID   ChipId;                     /*0x04 */
+	U32
+		HwSettings[MPI2_MAN_PAGE_2_HW_SETTINGS_WORDS];/*0x08 */
+} MPI2_CONFIG_PAGE_MAN_2,
+	*PTR_MPI2_CONFIG_PAGE_MAN_2,
+	Mpi2ManufacturingPage2_t,
+	*pMpi2ManufacturingPage2_t;
+
+#define MPI2_MANUFACTURING2_PAGEVERSION                 (0x00)
+
+
+/*Manufacturing Page 3 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check Header.PageLength at runtime.
+ */
+#ifndef MPI2_MAN_PAGE_3_INFO_WORDS
+#define MPI2_MAN_PAGE_3_INFO_WORDS          (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_3 {
+	MPI2_CONFIG_PAGE_HEADER             Header;         /*0x00 */
+	MPI2_CHIP_REVISION_ID               ChipId;         /*0x04 */
+	U32
+		Info[MPI2_MAN_PAGE_3_INFO_WORDS];/*0x08 */
+} MPI2_CONFIG_PAGE_MAN_3,
+	*PTR_MPI2_CONFIG_PAGE_MAN_3,
+	Mpi2ManufacturingPage3_t,
+	*pMpi2ManufacturingPage3_t;
+
+#define MPI2_MANUFACTURING3_PAGEVERSION                 (0x00)
+
+
+/*Manufacturing Page 4 */
+
+typedef struct _MPI2_MANPAGE4_PWR_SAVE_SETTINGS {
+	U8                          PowerSaveFlags;                 /*0x00 */
+	U8                          InternalOperationsSleepTime;    /*0x01 */
+	U8                          InternalOperationsRunTime;      /*0x02 */
+	U8                          HostIdleTime;                   /*0x03 */
+} MPI2_MANPAGE4_PWR_SAVE_SETTINGS,
+	*PTR_MPI2_MANPAGE4_PWR_SAVE_SETTINGS,
+	Mpi2ManPage4PwrSaveSettings_t,
+	*pMpi2ManPage4PwrSaveSettings_t;
+
+/*defines for the PowerSaveFlags field */
+#define MPI2_MANPAGE4_MASK_POWERSAVE_MODE               (0x03)
+#define MPI2_MANPAGE4_POWERSAVE_MODE_DISABLED           (0x00)
+#define MPI2_MANPAGE4_CUSTOM_POWERSAVE_MODE             (0x01)
+#define MPI2_MANPAGE4_FULL_POWERSAVE_MODE               (0x02)
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_4 {
+	MPI2_CONFIG_PAGE_HEADER             Header;                 /*0x00 */
+	U32                                 Reserved1;              /*0x04 */
+	U32                                 Flags;                  /*0x08 */
+	U8                                  InquirySize;            /*0x0C */
+	U8                                  Reserved2;              /*0x0D */
+	U16                                 Reserved3;              /*0x0E */
+	U8                                  InquiryData[56];        /*0x10 */
+	U32                                 RAID0VolumeSettings;    /*0x48 */
+	U32                                 RAID1EVolumeSettings;   /*0x4C */
+	U32                                 RAID1VolumeSettings;    /*0x50 */
+	U32                                 RAID10VolumeSettings;   /*0x54 */
+	U32                                 Reserved4;              /*0x58 */
+	U32                                 Reserved5;              /*0x5C */
+	MPI2_MANPAGE4_PWR_SAVE_SETTINGS     PowerSaveSettings;      /*0x60 */
+	U8                                  MaxOCEDisks;            /*0x64 */
+	U8                                  ResyncRate;             /*0x65 */
+	U16                                 DataScrubDuration;      /*0x66 */
+	U8                                  MaxHotSpares;           /*0x68 */
+	U8                                  MaxPhysDisksPerVol;     /*0x69 */
+	U8                                  MaxPhysDisks;           /*0x6A */
+	U8                                  MaxVolumes;             /*0x6B */
+} MPI2_CONFIG_PAGE_MAN_4,
+	*PTR_MPI2_CONFIG_PAGE_MAN_4,
+	Mpi2ManufacturingPage4_t,
+	*pMpi2ManufacturingPage4_t;
+
+#define MPI2_MANUFACTURING4_PAGEVERSION                 (0x0A)
+
+/*Manufacturing Page 4 Flags field */
+#define MPI2_MANPAGE4_METADATA_SIZE_MASK                (0x00030000)
+#define MPI2_MANPAGE4_METADATA_512MB                    (0x00000000)
+
+#define MPI2_MANPAGE4_MIX_SSD_SAS_SATA                  (0x00008000)
+#define MPI2_MANPAGE4_MIX_SSD_AND_NON_SSD               (0x00004000)
+#define MPI2_MANPAGE4_HIDE_PHYSDISK_NON_IR              (0x00002000)
+
+#define MPI2_MANPAGE4_MASK_PHYSDISK_COERCION            (0x00001C00)
+#define MPI2_MANPAGE4_PHYSDISK_COERCION_1GB             (0x00000000)
+#define MPI2_MANPAGE4_PHYSDISK_128MB_COERCION           (0x00000400)
+#define MPI2_MANPAGE4_PHYSDISK_ADAPTIVE_COERCION        (0x00000800)
+#define MPI2_MANPAGE4_PHYSDISK_ZERO_COERCION            (0x00000C00)
+
+#define MPI2_MANPAGE4_MASK_BAD_BLOCK_MARKING            (0x00000300)
+#define MPI2_MANPAGE4_DEFAULT_BAD_BLOCK_MARKING         (0x00000000)
+#define MPI2_MANPAGE4_TABLE_BAD_BLOCK_MARKING           (0x00000100)
+#define MPI2_MANPAGE4_WRITE_LONG_BAD_BLOCK_MARKING      (0x00000200)
+
+#define MPI2_MANPAGE4_FORCE_OFFLINE_FAILOVER            (0x00000080)
+#define MPI2_MANPAGE4_RAID10_DISABLE                    (0x00000040)
+#define MPI2_MANPAGE4_RAID1E_DISABLE                    (0x00000020)
+#define MPI2_MANPAGE4_RAID1_DISABLE                     (0x00000010)
+#define MPI2_MANPAGE4_RAID0_DISABLE                     (0x00000008)
+#define MPI2_MANPAGE4_IR_MODEPAGE8_DISABLE              (0x00000004)
+#define MPI2_MANPAGE4_IM_RESYNC_CACHE_ENABLE            (0x00000002)
+#define MPI2_MANPAGE4_IR_NO_MIX_SAS_SATA                (0x00000001)
+
+
+/*Manufacturing Page 5 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhys at runtime.
+ */
+#ifndef MPI2_MAN_PAGE_5_PHY_ENTRIES
+#define MPI2_MAN_PAGE_5_PHY_ENTRIES         (1)
+#endif
+
+typedef struct _MPI2_MANUFACTURING5_ENTRY {
+	U64                                 WWID;           /*0x00 */
+	U64                                 DeviceName;     /*0x08 */
+} MPI2_MANUFACTURING5_ENTRY,
+	*PTR_MPI2_MANUFACTURING5_ENTRY,
+	Mpi2Manufacturing5Entry_t,
+	*pMpi2Manufacturing5Entry_t;
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_5 {
+	MPI2_CONFIG_PAGE_HEADER             Header;         /*0x00 */
+	U8                                  NumPhys;        /*0x04 */
+	U8                                  Reserved1;      /*0x05 */
+	U16                                 Reserved2;      /*0x06 */
+	U32                                 Reserved3;      /*0x08 */
+	U32                                 Reserved4;      /*0x0C */
+	MPI2_MANUFACTURING5_ENTRY
+		Phy[MPI2_MAN_PAGE_5_PHY_ENTRIES];/*0x08 */
+} MPI2_CONFIG_PAGE_MAN_5,
+	*PTR_MPI2_CONFIG_PAGE_MAN_5,
+	Mpi2ManufacturingPage5_t,
+	*pMpi2ManufacturingPage5_t;
+
+#define MPI2_MANUFACTURING5_PAGEVERSION                 (0x03)
+
+
+/*Manufacturing Page 6 */
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_6 {
+	MPI2_CONFIG_PAGE_HEADER         Header;             /*0x00 */
+	U32                             ProductSpecificInfo;/*0x04 */
+} MPI2_CONFIG_PAGE_MAN_6,
+	*PTR_MPI2_CONFIG_PAGE_MAN_6,
+	Mpi2ManufacturingPage6_t,
+	*pMpi2ManufacturingPage6_t;
+
+#define MPI2_MANUFACTURING6_PAGEVERSION                 (0x00)
+
+
+/*Manufacturing Page 7 */
+
+typedef struct _MPI2_MANPAGE7_CONNECTOR_INFO {
+	U32                         Pinout;                 /*0x00 */
+	U8                          Connector[16];          /*0x04 */
+	U8                          Location;               /*0x14 */
+	U8                          ReceptacleID;           /*0x15 */
+	U16                         Slot;                   /*0x16 */
+	U32                         Reserved2;              /*0x18 */
+} MPI2_MANPAGE7_CONNECTOR_INFO,
+	*PTR_MPI2_MANPAGE7_CONNECTOR_INFO,
+	Mpi2ManPage7ConnectorInfo_t,
+	*pMpi2ManPage7ConnectorInfo_t;
+
+/*defines for the Pinout field */
+#define MPI2_MANPAGE7_PINOUT_LANE_MASK                  (0x0000FF00)
+#define MPI2_MANPAGE7_PINOUT_LANE_SHIFT                 (8)
+
+#define MPI2_MANPAGE7_PINOUT_TYPE_MASK                  (0x000000FF)
+#define MPI2_MANPAGE7_PINOUT_TYPE_UNKNOWN               (0x00)
+#define MPI2_MANPAGE7_PINOUT_SATA_SINGLE                (0x01)
+#define MPI2_MANPAGE7_PINOUT_SFF_8482                   (0x02)
+#define MPI2_MANPAGE7_PINOUT_SFF_8486                   (0x03)
+#define MPI2_MANPAGE7_PINOUT_SFF_8484                   (0x04)
+#define MPI2_MANPAGE7_PINOUT_SFF_8087                   (0x05)
+#define MPI2_MANPAGE7_PINOUT_SFF_8643_4I                (0x06)
+#define MPI2_MANPAGE7_PINOUT_SFF_8643_8I                (0x07)
+#define MPI2_MANPAGE7_PINOUT_SFF_8470                   (0x08)
+#define MPI2_MANPAGE7_PINOUT_SFF_8088                   (0x09)
+#define MPI2_MANPAGE7_PINOUT_SFF_8644_4X                (0x0A)
+#define MPI2_MANPAGE7_PINOUT_SFF_8644_8X                (0x0B)
+#define MPI2_MANPAGE7_PINOUT_SFF_8644_16X               (0x0C)
+#define MPI2_MANPAGE7_PINOUT_SFF_8436                   (0x0D)
+
+/*defines for the Location field */
+#define MPI2_MANPAGE7_LOCATION_UNKNOWN                  (0x01)
+#define MPI2_MANPAGE7_LOCATION_INTERNAL                 (0x02)
+#define MPI2_MANPAGE7_LOCATION_EXTERNAL                 (0x04)
+#define MPI2_MANPAGE7_LOCATION_SWITCHABLE               (0x08)
+#define MPI2_MANPAGE7_LOCATION_AUTO                     (0x10)
+#define MPI2_MANPAGE7_LOCATION_NOT_PRESENT              (0x20)
+#define MPI2_MANPAGE7_LOCATION_NOT_CONNECTED            (0x80)
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhys at runtime.
+ */
+#ifndef MPI2_MANPAGE7_CONNECTOR_INFO_MAX
+#define MPI2_MANPAGE7_CONNECTOR_INFO_MAX  (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_7 {
+	MPI2_CONFIG_PAGE_HEADER         Header;             /*0x00 */
+	U32                             Reserved1;          /*0x04 */
+	U32                             Reserved2;          /*0x08 */
+	U32                             Flags;              /*0x0C */
+	U8                              EnclosureName[16];  /*0x10 */
+	U8                              NumPhys;            /*0x20 */
+	U8                              Reserved3;          /*0x21 */
+	U16                             Reserved4;          /*0x22 */
+	MPI2_MANPAGE7_CONNECTOR_INFO
+	ConnectorInfo[MPI2_MANPAGE7_CONNECTOR_INFO_MAX]; /*0x24 */
+} MPI2_CONFIG_PAGE_MAN_7,
+	*PTR_MPI2_CONFIG_PAGE_MAN_7,
+	Mpi2ManufacturingPage7_t,
+	*pMpi2ManufacturingPage7_t;
+
+#define MPI2_MANUFACTURING7_PAGEVERSION                 (0x01)
+
+/*defines for the Flags field */
+#define MPI2_MANPAGE7_FLAG_USE_SLOT_INFO                (0x00000001)
+
+
+/*
+ *Generic structure to use for product-specific manufacturing pages
+ *(currently Manufacturing Page 8 through Manufacturing Page 31).
+ */
+
+typedef struct _MPI2_CONFIG_PAGE_MAN_PS {
+	MPI2_CONFIG_PAGE_HEADER         Header;             /*0x00 */
+	U32                             ProductSpecificInfo;/*0x04 */
+} MPI2_CONFIG_PAGE_MAN_PS,
+	*PTR_MPI2_CONFIG_PAGE_MAN_PS,
+	Mpi2ManufacturingPagePS_t,
+	*pMpi2ManufacturingPagePS_t;
+
+#define MPI2_MANUFACTURING8_PAGEVERSION                 (0x00)
+#define MPI2_MANUFACTURING9_PAGEVERSION                 (0x00)
+#define MPI2_MANUFACTURING10_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING11_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING12_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING13_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING14_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING15_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING16_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING17_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING18_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING19_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING20_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING21_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING22_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING23_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING24_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING25_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING26_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING27_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING28_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING29_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING30_PAGEVERSION                (0x00)
+#define MPI2_MANUFACTURING31_PAGEVERSION                (0x00)
+
+
+/****************************************************************************
+*  IO Unit Config Pages
+****************************************************************************/
+
+/*IO Unit Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_0 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U64                     UniqueValue;                /*0x04 */
+	MPI2_VERSION_UNION      NvdataVersionDefault;       /*0x08 */
+	MPI2_VERSION_UNION      NvdataVersionPersistent;    /*0x0A */
+} MPI2_CONFIG_PAGE_IO_UNIT_0,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_0,
+	Mpi2IOUnitPage0_t, *pMpi2IOUnitPage0_t;
+
+#define MPI2_IOUNITPAGE0_PAGEVERSION                    (0x02)
+
+
+/*IO Unit Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_1 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U32                     Flags;                      /*0x04 */
+} MPI2_CONFIG_PAGE_IO_UNIT_1,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_1,
+	Mpi2IOUnitPage1_t, *pMpi2IOUnitPage1_t;
+
+#define MPI2_IOUNITPAGE1_PAGEVERSION                    (0x04)
+
+/*IO Unit Page 1 Flags defines */
+#define MPI25_IOUNITPAGE1_NEW_DEVICE_FAST_PATH_DISABLE  (0x00002000)
+#define MPI25_IOUNITPAGE1_DISABLE_FAST_PATH             (0x00001000)
+#define MPI2_IOUNITPAGE1_ENABLE_HOST_BASED_DISCOVERY    (0x00000800)
+#define MPI2_IOUNITPAGE1_MASK_SATA_WRITE_CACHE          (0x00000600)
+#define MPI2_IOUNITPAGE1_SATA_WRITE_CACHE_SHIFT         (9)
+#define MPI2_IOUNITPAGE1_ENABLE_SATA_WRITE_CACHE        (0x00000000)
+#define MPI2_IOUNITPAGE1_DISABLE_SATA_WRITE_CACHE       (0x00000200)
+#define MPI2_IOUNITPAGE1_UNCHANGED_SATA_WRITE_CACHE     (0x00000400)
+#define MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE       (0x00000100)
+#define MPI2_IOUNITPAGE1_DISABLE_IR                     (0x00000040)
+#define MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING (0x00000020)
+#define MPI2_IOUNITPAGE1_IR_USE_STATIC_VOLUME_ID        (0x00000004)
+
+
+/*IO Unit Page 3 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for GPIOCount at runtime.
+ */
+#ifndef MPI2_IO_UNIT_PAGE_3_GPIO_VAL_MAX
+#define MPI2_IO_UNIT_PAGE_3_GPIO_VAL_MAX    (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_3 {
+	MPI2_CONFIG_PAGE_HEADER Header;			 /*0x00 */
+	U8                      GPIOCount;		 /*0x04 */
+	U8                      Reserved1;		 /*0x05 */
+	U16                     Reserved2;		 /*0x06 */
+	U16
+		GPIOVal[MPI2_IO_UNIT_PAGE_3_GPIO_VAL_MAX];/*0x08 */
+} MPI2_CONFIG_PAGE_IO_UNIT_3,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_3,
+	Mpi2IOUnitPage3_t, *pMpi2IOUnitPage3_t;
+
+#define MPI2_IOUNITPAGE3_PAGEVERSION                    (0x01)
+
+/*defines for IO Unit Page 3 GPIOVal field */
+#define MPI2_IOUNITPAGE3_GPIO_FUNCTION_MASK             (0xFFFC)
+#define MPI2_IOUNITPAGE3_GPIO_FUNCTION_SHIFT            (2)
+#define MPI2_IOUNITPAGE3_GPIO_SETTING_OFF               (0x0000)
+#define MPI2_IOUNITPAGE3_GPIO_SETTING_ON                (0x0001)
+
+
+/*IO Unit Page 5 */
+
+/*
+ *Upper layer code (drivers, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumDmaEngines at runtime.
+ */
+#ifndef MPI2_IOUNITPAGE5_DMAENGINE_ENTRIES
+#define MPI2_IOUNITPAGE5_DMAENGINE_ENTRIES      (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_5 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U64
+		RaidAcceleratorBufferBaseAddress;           /*0x04 */
+	U64
+		RaidAcceleratorBufferSize;                  /*0x0C */
+	U64
+		RaidAcceleratorControlBaseAddress;          /*0x14 */
+	U8                      RAControlSize;              /*0x1C */
+	U8                      NumDmaEngines;              /*0x1D */
+	U8                      RAMinControlSize;           /*0x1E */
+	U8                      RAMaxControlSize;           /*0x1F */
+	U32                     Reserved1;                  /*0x20 */
+	U32                     Reserved2;                  /*0x24 */
+	U32                     Reserved3;                  /*0x28 */
+	U32
+	DmaEngineCapabilities[MPI2_IOUNITPAGE5_DMAENGINE_ENTRIES]; /*0x2C */
+} MPI2_CONFIG_PAGE_IO_UNIT_5,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_5,
+	Mpi2IOUnitPage5_t, *pMpi2IOUnitPage5_t;
+
+#define MPI2_IOUNITPAGE5_PAGEVERSION                    (0x00)
+
+/*defines for IO Unit Page 5 DmaEngineCapabilities field */
+#define MPI2_IOUNITPAGE5_DMA_CAP_MASK_MAX_REQUESTS      (0xFF00)
+#define MPI2_IOUNITPAGE5_DMA_CAP_SHIFT_MAX_REQUESTS     (16)
+
+#define MPI2_IOUNITPAGE5_DMA_CAP_EEDP                   (0x0008)
+#define MPI2_IOUNITPAGE5_DMA_CAP_PARITY_GENERATION      (0x0004)
+#define MPI2_IOUNITPAGE5_DMA_CAP_HASHING                (0x0002)
+#define MPI2_IOUNITPAGE5_DMA_CAP_ENCRYPTION             (0x0001)
+
+
+/*IO Unit Page 6 */
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_6 {
+	MPI2_CONFIG_PAGE_HEADER Header;                 /*0x00 */
+	U16                     Flags;                  /*0x04 */
+	U8                      RAHostControlSize;      /*0x06 */
+	U8                      Reserved0;              /*0x07 */
+	U64
+		RaidAcceleratorHostControlBaseAddress;  /*0x08 */
+	U32                     Reserved1;              /*0x10 */
+	U32                     Reserved2;              /*0x14 */
+	U32                     Reserved3;              /*0x18 */
+} MPI2_CONFIG_PAGE_IO_UNIT_6,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_6,
+	Mpi2IOUnitPage6_t, *pMpi2IOUnitPage6_t;
+
+#define MPI2_IOUNITPAGE6_PAGEVERSION                    (0x00)
+
+/*defines for IO Unit Page 6 Flags field */
+#define MPI2_IOUNITPAGE6_FLAGS_ENABLE_RAID_ACCELERATOR  (0x0001)
+
+
+/*IO Unit Page 7 */
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_7 {
+	MPI2_CONFIG_PAGE_HEADER Header;                 /*0x00 */
+	U8                      CurrentPowerMode;       /*0x04 */
+	U8                      PreviousPowerMode;      /*0x05 */
+	U8                      PCIeWidth;              /*0x06 */
+	U8                      PCIeSpeed;              /*0x07 */
+	U32                     ProcessorState;         /*0x08 */
+	U32
+		PowerManagementCapabilities;            /*0x0C */
+	U16                     IOCTemperature;         /*0x10 */
+	U8
+		IOCTemperatureUnits;                    /*0x12 */
+	U8                      IOCSpeed;               /*0x13 */
+	U16                     BoardTemperature;       /*0x14 */
+	U8
+		BoardTemperatureUnits;                  /*0x16 */
+	U8                      Reserved3;              /*0x17 */
+} MPI2_CONFIG_PAGE_IO_UNIT_7,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_7,
+	Mpi2IOUnitPage7_t, *pMpi2IOUnitPage7_t;
+
+#define MPI2_IOUNITPAGE7_PAGEVERSION                    (0x02)
+
+/*defines for IO Unit Page 7 CurrentPowerMode and PreviousPowerMode fields */
+#define MPI25_IOUNITPAGE7_PM_INIT_MASK              (0xC0)
+#define MPI25_IOUNITPAGE7_PM_INIT_UNAVAILABLE       (0x00)
+#define MPI25_IOUNITPAGE7_PM_INIT_HOST              (0x40)
+#define MPI25_IOUNITPAGE7_PM_INIT_IO_UNIT           (0x80)
+#define MPI25_IOUNITPAGE7_PM_INIT_PCIE_DPA          (0xC0)
+
+#define MPI25_IOUNITPAGE7_PM_MODE_MASK              (0x07)
+#define MPI25_IOUNITPAGE7_PM_MODE_UNAVAILABLE       (0x00)
+#define MPI25_IOUNITPAGE7_PM_MODE_UNKNOWN           (0x01)
+#define MPI25_IOUNITPAGE7_PM_MODE_FULL_POWER        (0x04)
+#define MPI25_IOUNITPAGE7_PM_MODE_REDUCED_POWER     (0x05)
+#define MPI25_IOUNITPAGE7_PM_MODE_STANDBY           (0x06)
+
+
+/*defines for IO Unit Page 7 PCIeWidth field */
+#define MPI2_IOUNITPAGE7_PCIE_WIDTH_X1              (0x01)
+#define MPI2_IOUNITPAGE7_PCIE_WIDTH_X2              (0x02)
+#define MPI2_IOUNITPAGE7_PCIE_WIDTH_X4              (0x04)
+#define MPI2_IOUNITPAGE7_PCIE_WIDTH_X8              (0x08)
+
+/*defines for IO Unit Page 7 PCIeSpeed field */
+#define MPI2_IOUNITPAGE7_PCIE_SPEED_2_5_GBPS        (0x00)
+#define MPI2_IOUNITPAGE7_PCIE_SPEED_5_0_GBPS        (0x01)
+#define MPI2_IOUNITPAGE7_PCIE_SPEED_8_0_GBPS        (0x02)
+
+/*defines for IO Unit Page 7 ProcessorState field */
+#define MPI2_IOUNITPAGE7_PSTATE_MASK_SECOND         (0x0000000F)
+#define MPI2_IOUNITPAGE7_PSTATE_SHIFT_SECOND        (0)
+
+#define MPI2_IOUNITPAGE7_PSTATE_NOT_PRESENT         (0x00)
+#define MPI2_IOUNITPAGE7_PSTATE_DISABLED            (0x01)
+#define MPI2_IOUNITPAGE7_PSTATE_ENABLED             (0x02)
+
+/*defines for IO Unit Page 7 PowerManagementCapabilities field */
+#define MPI25_IOUNITPAGE7_PMCAP_DPA_FULL_PWR_MODE       (0x00400000)
+#define MPI25_IOUNITPAGE7_PMCAP_DPA_REDUCED_PWR_MODE    (0x00200000)
+#define MPI25_IOUNITPAGE7_PMCAP_DPA_STANDBY_MODE        (0x00100000)
+#define MPI25_IOUNITPAGE7_PMCAP_HOST_FULL_PWR_MODE      (0x00040000)
+#define MPI25_IOUNITPAGE7_PMCAP_HOST_REDUCED_PWR_MODE   (0x00020000)
+#define MPI25_IOUNITPAGE7_PMCAP_HOST_STANDBY_MODE       (0x00010000)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_FULL_PWR_MODE        (0x00004000)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_REDUCED_PWR_MODE     (0x00002000)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_STANDBY_MODE         (0x00001000)
+#define MPI2_IOUNITPAGE7_PMCAP_HOST_12_5_PCT_IOCSPEED   (0x00000400)
+#define MPI2_IOUNITPAGE7_PMCAP_HOST_25_0_PCT_IOCSPEED   (0x00000200)
+#define MPI2_IOUNITPAGE7_PMCAP_HOST_50_0_PCT_IOCSPEED   (0x00000100)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_12_5_PCT_IOCSPEED    (0x00000040)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_25_0_PCT_IOCSPEED    (0x00000020)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_50_0_PCT_IOCSPEED    (0x00000010)
+#define MPI2_IOUNITPAGE7_PMCAP_HOST_WIDTH_CHANGE_PCIE   (0x00000008)
+#define MPI2_IOUNITPAGE7_PMCAP_HOST_SPEED_CHANGE_PCIE   (0x00000004)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_WIDTH_CHANGE_PCIE    (0x00000002)
+#define MPI25_IOUNITPAGE7_PMCAP_IO_SPEED_CHANGE_PCIE    (0x00000001)
+
+/*obsolete names for the PowerManagementCapabilities bits (above) */
+#define MPI2_IOUNITPAGE7_PMCAP_12_5_PCT_IOCSPEED    (0x00000400)
+#define MPI2_IOUNITPAGE7_PMCAP_25_0_PCT_IOCSPEED    (0x00000200)
+#define MPI2_IOUNITPAGE7_PMCAP_50_0_PCT_IOCSPEED    (0x00000100)
+#define MPI2_IOUNITPAGE7_PMCAP_PCIE_WIDTH_CHANGE    (0x00000008) /*obsolete */
+#define MPI2_IOUNITPAGE7_PMCAP_PCIE_SPEED_CHANGE    (0x00000004) /*obsolete */
+
+
+/*defines for IO Unit Page 7 IOCTemperatureUnits field */
+#define MPI2_IOUNITPAGE7_IOC_TEMP_NOT_PRESENT       (0x00)
+#define MPI2_IOUNITPAGE7_IOC_TEMP_FAHRENHEIT        (0x01)
+#define MPI2_IOUNITPAGE7_IOC_TEMP_CELSIUS           (0x02)
+
+/*defines for IO Unit Page 7 IOCSpeed field */
+#define MPI2_IOUNITPAGE7_IOC_SPEED_FULL             (0x01)
+#define MPI2_IOUNITPAGE7_IOC_SPEED_HALF             (0x02)
+#define MPI2_IOUNITPAGE7_IOC_SPEED_QUARTER          (0x04)
+#define MPI2_IOUNITPAGE7_IOC_SPEED_EIGHTH           (0x08)
+
+/*defines for IO Unit Page 7 BoardTemperatureUnits field */
+#define MPI2_IOUNITPAGE7_BOARD_TEMP_NOT_PRESENT     (0x00)
+#define MPI2_IOUNITPAGE7_BOARD_TEMP_FAHRENHEIT      (0x01)
+#define MPI2_IOUNITPAGE7_BOARD_TEMP_CELSIUS         (0x02)
+
+
+/*IO Unit Page 8 */
+
+#define MPI2_IOUNIT8_NUM_THRESHOLDS     (4)
+
+typedef struct _MPI2_IOUNIT8_SENSOR {
+	U16                     Flags;                  /*0x00 */
+	U16                     Reserved1;              /*0x02 */
+	U16
+		Threshold[MPI2_IOUNIT8_NUM_THRESHOLDS]; /*0x04 */
+	U32                     Reserved2;              /*0x0C */
+	U32                     Reserved3;              /*0x10 */
+	U32                     Reserved4;              /*0x14 */
+} MPI2_IOUNIT8_SENSOR, *PTR_MPI2_IOUNIT8_SENSOR,
+	Mpi2IOUnit8Sensor_t, *pMpi2IOUnit8Sensor_t;
+
+/*defines for IO Unit Page 8 Sensor Flags field */
+#define MPI2_IOUNIT8_SENSOR_FLAGS_T3_ENABLE         (0x0008)
+#define MPI2_IOUNIT8_SENSOR_FLAGS_T2_ENABLE         (0x0004)
+#define MPI2_IOUNIT8_SENSOR_FLAGS_T1_ENABLE         (0x0002)
+#define MPI2_IOUNIT8_SENSOR_FLAGS_T0_ENABLE         (0x0001)
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumSensors at runtime.
+ */
+#ifndef MPI2_IOUNITPAGE8_SENSOR_ENTRIES
+#define MPI2_IOUNITPAGE8_SENSOR_ENTRIES     (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_8 {
+	MPI2_CONFIG_PAGE_HEADER Header;                 /*0x00 */
+	U32                     Reserved1;              /*0x04 */
+	U32                     Reserved2;              /*0x08 */
+	U8                      NumSensors;             /*0x0C */
+	U8                      PollingInterval;        /*0x0D */
+	U16                     Reserved3;              /*0x0E */
+	MPI2_IOUNIT8_SENSOR
+		Sensor[MPI2_IOUNITPAGE8_SENSOR_ENTRIES];/*0x10 */
+} MPI2_CONFIG_PAGE_IO_UNIT_8,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_8,
+	Mpi2IOUnitPage8_t, *pMpi2IOUnitPage8_t;
+
+#define MPI2_IOUNITPAGE8_PAGEVERSION                    (0x00)
+
+
+/*IO Unit Page 9 */
+
+typedef struct _MPI2_IOUNIT9_SENSOR {
+	U16                     CurrentTemperature;     /*0x00 */
+	U16                     Reserved1;              /*0x02 */
+	U8                      Flags;                  /*0x04 */
+	U8                      Reserved2;              /*0x05 */
+	U16                     Reserved3;              /*0x06 */
+	U32                     Reserved4;              /*0x08 */
+	U32                     Reserved5;              /*0x0C */
+} MPI2_IOUNIT9_SENSOR, *PTR_MPI2_IOUNIT9_SENSOR,
+	Mpi2IOUnit9Sensor_t, *pMpi2IOUnit9Sensor_t;
+
+/*defines for IO Unit Page 9 Sensor Flags field */
+#define MPI2_IOUNIT9_SENSOR_FLAGS_TEMP_VALID        (0x01)
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumSensors at runtime.
+ */
+#ifndef MPI2_IOUNITPAGE9_SENSOR_ENTRIES
+#define MPI2_IOUNITPAGE9_SENSOR_ENTRIES     (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_9 {
+	MPI2_CONFIG_PAGE_HEADER Header;                 /*0x00 */
+	U32                     Reserved1;              /*0x04 */
+	U32                     Reserved2;              /*0x08 */
+	U8                      NumSensors;             /*0x0C */
+	U8                      Reserved4;              /*0x0D */
+	U16                     Reserved3;              /*0x0E */
+	MPI2_IOUNIT9_SENSOR
+		Sensor[MPI2_IOUNITPAGE9_SENSOR_ENTRIES];/*0x10 */
+} MPI2_CONFIG_PAGE_IO_UNIT_9,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_9,
+	Mpi2IOUnitPage9_t, *pMpi2IOUnitPage9_t;
+
+#define MPI2_IOUNITPAGE9_PAGEVERSION                    (0x00)
+
+
+/*IO Unit Page 10 */
+
+typedef struct _MPI2_IOUNIT10_FUNCTION {
+	U8                      CreditPercent;      /*0x00 */
+	U8                      Reserved1;          /*0x01 */
+	U16                     Reserved2;          /*0x02 */
+} MPI2_IOUNIT10_FUNCTION,
+	*PTR_MPI2_IOUNIT10_FUNCTION,
+	Mpi2IOUnit10Function_t,
+	*pMpi2IOUnit10Function_t;
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumFunctions at runtime.
+ */
+#ifndef MPI2_IOUNITPAGE10_FUNCTION_ENTRIES
+#define MPI2_IOUNITPAGE10_FUNCTION_ENTRIES      (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_10 {
+	MPI2_CONFIG_PAGE_HEADER Header;                      /*0x00 */
+	U8                      NumFunctions;                /*0x04 */
+	U8                      Reserved1;                   /*0x05 */
+	U16                     Reserved2;                   /*0x06 */
+	U32                     Reserved3;                   /*0x08 */
+	U32                     Reserved4;                   /*0x0C */
+	MPI2_IOUNIT10_FUNCTION
+		Function[MPI2_IOUNITPAGE10_FUNCTION_ENTRIES];/*0x10 */
+} MPI2_CONFIG_PAGE_IO_UNIT_10,
+	*PTR_MPI2_CONFIG_PAGE_IO_UNIT_10,
+	Mpi2IOUnitPage10_t, *pMpi2IOUnitPage10_t;
+
+#define MPI2_IOUNITPAGE10_PAGEVERSION                   (0x01)
+
+
+
+/****************************************************************************
+*  IOC Config Pages
+****************************************************************************/
+
+/*IOC Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_IOC_0 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U32                     Reserved1;                  /*0x04 */
+	U32                     Reserved2;                  /*0x08 */
+	U16                     VendorID;                   /*0x0C */
+	U16                     DeviceID;                   /*0x0E */
+	U8                      RevisionID;                 /*0x10 */
+	U8                      Reserved3;                  /*0x11 */
+	U16                     Reserved4;                  /*0x12 */
+	U32                     ClassCode;                  /*0x14 */
+	U16                     SubsystemVendorID;          /*0x18 */
+	U16                     SubsystemID;                /*0x1A */
+} MPI2_CONFIG_PAGE_IOC_0,
+	*PTR_MPI2_CONFIG_PAGE_IOC_0,
+	Mpi2IOCPage0_t, *pMpi2IOCPage0_t;
+
+#define MPI2_IOCPAGE0_PAGEVERSION                       (0x02)
+
+
+/*IOC Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_IOC_1 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U32                     Flags;                      /*0x04 */
+	U32                     CoalescingTimeout;          /*0x08 */
+	U8                      CoalescingDepth;            /*0x0C */
+	U8                      PCISlotNum;                 /*0x0D */
+	U8                      PCIBusNum;                  /*0x0E */
+	U8                      PCIDomainSegment;           /*0x0F */
+	U32                     Reserved1;                  /*0x10 */
+	U32                     Reserved2;                  /*0x14 */
+} MPI2_CONFIG_PAGE_IOC_1,
+	*PTR_MPI2_CONFIG_PAGE_IOC_1,
+	Mpi2IOCPage1_t, *pMpi2IOCPage1_t;
+
+#define MPI2_IOCPAGE1_PAGEVERSION                       (0x05)
+
+/*defines for IOC Page 1 Flags field */
+#define MPI2_IOCPAGE1_REPLY_COALESCING                  (0x00000001)
+
+#define MPI2_IOCPAGE1_PCISLOTNUM_UNKNOWN                (0xFF)
+#define MPI2_IOCPAGE1_PCIBUSNUM_UNKNOWN                 (0xFF)
+#define MPI2_IOCPAGE1_PCIDOMAIN_UNKNOWN                 (0xFF)
+
+/*IOC Page 6 */
+
+typedef struct _MPI2_CONFIG_PAGE_IOC_6 {
+	MPI2_CONFIG_PAGE_HEADER Header;         /*0x00 */
+	U32
+		CapabilitiesFlags;              /*0x04 */
+	U8                      MaxDrivesRAID0; /*0x08 */
+	U8                      MaxDrivesRAID1; /*0x09 */
+	U8
+		 MaxDrivesRAID1E;                /*0x0A */
+	U8
+		 MaxDrivesRAID10;		/*0x0B */
+	U8                      MinDrivesRAID0; /*0x0C */
+	U8                      MinDrivesRAID1; /*0x0D */
+	U8
+		 MinDrivesRAID1E;                /*0x0E */
+	U8
+		 MinDrivesRAID10;                /*0x0F */
+	U32                     Reserved1;      /*0x10 */
+	U8
+		 MaxGlobalHotSpares;             /*0x14 */
+	U8                      MaxPhysDisks;   /*0x15 */
+	U8                      MaxVolumes;     /*0x16 */
+	U8                      MaxConfigs;     /*0x17 */
+	U8                      MaxOCEDisks;    /*0x18 */
+	U8                      Reserved2;      /*0x19 */
+	U16                     Reserved3;      /*0x1A */
+	U32
+		SupportedStripeSizeMapRAID0;    /*0x1C */
+	U32
+		SupportedStripeSizeMapRAID1E;   /*0x20 */
+	U32
+		SupportedStripeSizeMapRAID10;   /*0x24 */
+	U32                     Reserved4;      /*0x28 */
+	U32                     Reserved5;      /*0x2C */
+	U16
+		DefaultMetadataSize;            /*0x30 */
+	U16                     Reserved6;      /*0x32 */
+	U16
+		MaxBadBlockTableEntries;        /*0x34 */
+	U16                     Reserved7;      /*0x36 */
+	U32
+		IRNvsramVersion;                /*0x38 */
+} MPI2_CONFIG_PAGE_IOC_6,
+	*PTR_MPI2_CONFIG_PAGE_IOC_6,
+	Mpi2IOCPage6_t, *pMpi2IOCPage6_t;
+
+#define MPI2_IOCPAGE6_PAGEVERSION                       (0x05)
+
+/*defines for IOC Page 6 CapabilitiesFlags */
+#define MPI2_IOCPAGE6_CAP_FLAGS_4K_SECTORS_SUPPORT      (0x00000020)
+#define MPI2_IOCPAGE6_CAP_FLAGS_RAID10_SUPPORT          (0x00000010)
+#define MPI2_IOCPAGE6_CAP_FLAGS_RAID1_SUPPORT           (0x00000008)
+#define MPI2_IOCPAGE6_CAP_FLAGS_RAID1E_SUPPORT          (0x00000004)
+#define MPI2_IOCPAGE6_CAP_FLAGS_RAID0_SUPPORT           (0x00000002)
+#define MPI2_IOCPAGE6_CAP_FLAGS_GLOBAL_HOT_SPARE        (0x00000001)
+
+
+/*IOC Page 7 */
+
+#define MPI2_IOCPAGE7_EVENTMASK_WORDS       (4)
+
+typedef struct _MPI2_CONFIG_PAGE_IOC_7 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U32                     Reserved1;                  /*0x04 */
+	U32
+		EventMasks[MPI2_IOCPAGE7_EVENTMASK_WORDS];/*0x08 */
+	U16                     SASBroadcastPrimitiveMasks; /*0x18 */
+	U16                     SASNotifyPrimitiveMasks;    /*0x1A */
+	U32                     Reserved3;                  /*0x1C */
+} MPI2_CONFIG_PAGE_IOC_7,
+	*PTR_MPI2_CONFIG_PAGE_IOC_7,
+	Mpi2IOCPage7_t, *pMpi2IOCPage7_t;
+
+#define MPI2_IOCPAGE7_PAGEVERSION                       (0x02)
+
+
+/*IOC Page 8 */
+
+typedef struct _MPI2_CONFIG_PAGE_IOC_8 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U8                      NumDevsPerEnclosure;        /*0x04 */
+	U8                      Reserved1;                  /*0x05 */
+	U16                     Reserved2;                  /*0x06 */
+	U16                     MaxPersistentEntries;       /*0x08 */
+	U16                     MaxNumPhysicalMappedIDs;    /*0x0A */
+	U16                     Flags;                      /*0x0C */
+	U16                     Reserved3;                  /*0x0E */
+	U16                     IRVolumeMappingFlags;       /*0x10 */
+	U16                     Reserved4;                  /*0x12 */
+	U32                     Reserved5;                  /*0x14 */
+} MPI2_CONFIG_PAGE_IOC_8,
+	*PTR_MPI2_CONFIG_PAGE_IOC_8,
+	Mpi2IOCPage8_t, *pMpi2IOCPage8_t;
+
+#define MPI2_IOCPAGE8_PAGEVERSION                       (0x00)
+
+/*defines for IOC Page 8 Flags field */
+#define MPI2_IOCPAGE8_FLAGS_DA_START_SLOT_1             (0x00000020)
+#define MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0         (0x00000010)
+
+#define MPI2_IOCPAGE8_FLAGS_MASK_MAPPING_MODE           (0x0000000E)
+#define MPI2_IOCPAGE8_FLAGS_DEVICE_PERSISTENCE_MAPPING  (0x00000000)
+#define MPI2_IOCPAGE8_FLAGS_ENCLOSURE_SLOT_MAPPING      (0x00000002)
+
+#define MPI2_IOCPAGE8_FLAGS_DISABLE_PERSISTENT_MAPPING  (0x00000001)
+#define MPI2_IOCPAGE8_FLAGS_ENABLE_PERSISTENT_MAPPING   (0x00000000)
+
+/*defines for IOC Page 8 IRVolumeMappingFlags */
+#define MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE  (0x00000003)
+#define MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING        (0x00000000)
+#define MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING       (0x00000001)
+
+
+/****************************************************************************
+*  BIOS Config Pages
+****************************************************************************/
+
+/*BIOS Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_BIOS_1 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U32                     BiosOptions;                /*0x04 */
+	U32                     IOCSettings;                /*0x08 */
+	U32                     Reserved1;                  /*0x0C */
+	U32                     DeviceSettings;             /*0x10 */
+	U16                     NumberOfDevices;            /*0x14 */
+	U16                     UEFIVersion;                /*0x16 */
+	U16                     IOTimeoutBlockDevicesNonRM; /*0x18 */
+	U16                     IOTimeoutSequential;        /*0x1A */
+	U16                     IOTimeoutOther;             /*0x1C */
+	U16                     IOTimeoutBlockDevicesRM;    /*0x1E */
+} MPI2_CONFIG_PAGE_BIOS_1,
+	*PTR_MPI2_CONFIG_PAGE_BIOS_1,
+	Mpi2BiosPage1_t, *pMpi2BiosPage1_t;
+
+#define MPI2_BIOSPAGE1_PAGEVERSION                      (0x05)
+
+/*values for BIOS Page 1 BiosOptions field */
+#define MPI2_BIOSPAGE1_OPTIONS_MASK_UEFI_HII_REGISTRATION   (0x00000006)
+#define MPI2_BIOSPAGE1_OPTIONS_ENABLE_UEFI_HII              (0x00000000)
+#define MPI2_BIOSPAGE1_OPTIONS_DISABLE_UEFI_HII             (0x00000002)
+#define MPI2_BIOSPAGE1_OPTIONS_VERSION_CHECK_UEFI_HII       (0x00000004)
+
+#define MPI2_BIOSPAGE1_OPTIONS_DISABLE_BIOS                 (0x00000001)
+
+/*values for BIOS Page 1 IOCSettings field */
+#define MPI2_BIOSPAGE1_IOCSET_MASK_BOOT_PREFERENCE      (0x00030000)
+#define MPI2_BIOSPAGE1_IOCSET_ENCLOSURE_SLOT_BOOT       (0x00000000)
+#define MPI2_BIOSPAGE1_IOCSET_SAS_ADDRESS_BOOT          (0x00010000)
+
+#define MPI2_BIOSPAGE1_IOCSET_MASK_RM_SETTING           (0x000000C0)
+#define MPI2_BIOSPAGE1_IOCSET_NONE_RM_SETTING           (0x00000000)
+#define MPI2_BIOSPAGE1_IOCSET_BOOT_RM_SETTING           (0x00000040)
+#define MPI2_BIOSPAGE1_IOCSET_MEDIA_RM_SETTING          (0x00000080)
+
+#define MPI2_BIOSPAGE1_IOCSET_MASK_ADAPTER_SUPPORT      (0x00000030)
+#define MPI2_BIOSPAGE1_IOCSET_NO_SUPPORT                (0x00000000)
+#define MPI2_BIOSPAGE1_IOCSET_BIOS_SUPPORT              (0x00000010)
+#define MPI2_BIOSPAGE1_IOCSET_OS_SUPPORT                (0x00000020)
+#define MPI2_BIOSPAGE1_IOCSET_ALL_SUPPORT               (0x00000030)
+
+#define MPI2_BIOSPAGE1_IOCSET_ALTERNATE_CHS             (0x00000008)
+
+/*values for BIOS Page 1 DeviceSettings field */
+#define MPI2_BIOSPAGE1_DEVSET_DISABLE_SMART_POLLING     (0x00000010)
+#define MPI2_BIOSPAGE1_DEVSET_DISABLE_SEQ_LUN           (0x00000008)
+#define MPI2_BIOSPAGE1_DEVSET_DISABLE_RM_LUN            (0x00000004)
+#define MPI2_BIOSPAGE1_DEVSET_DISABLE_NON_RM_LUN        (0x00000002)
+#define MPI2_BIOSPAGE1_DEVSET_DISABLE_OTHER_LUN         (0x00000001)
+
+/*defines for BIOS Page 1 UEFIVersion field */
+#define MPI2_BIOSPAGE1_UEFI_VER_MAJOR_MASK              (0xFF00)
+#define MPI2_BIOSPAGE1_UEFI_VER_MAJOR_SHIFT             (8)
+#define MPI2_BIOSPAGE1_UEFI_VER_MINOR_MASK              (0x00FF)
+#define MPI2_BIOSPAGE1_UEFI_VER_MINOR_SHIFT             (0)
+
+
+
+/*BIOS Page 2 */
+
+typedef struct _MPI2_BOOT_DEVICE_ADAPTER_ORDER {
+	U32         Reserved1;                              /*0x00 */
+	U32         Reserved2;                              /*0x04 */
+	U32         Reserved3;                              /*0x08 */
+	U32         Reserved4;                              /*0x0C */
+	U32         Reserved5;                              /*0x10 */
+	U32         Reserved6;                              /*0x14 */
+} MPI2_BOOT_DEVICE_ADAPTER_ORDER,
+	*PTR_MPI2_BOOT_DEVICE_ADAPTER_ORDER,
+	Mpi2BootDeviceAdapterOrder_t,
+	*pMpi2BootDeviceAdapterOrder_t;
+
+typedef struct _MPI2_BOOT_DEVICE_SAS_WWID {
+	U64         SASAddress;                             /*0x00 */
+	U8          LUN[8];                                 /*0x08 */
+	U32         Reserved1;                              /*0x10 */
+	U32         Reserved2;                              /*0x14 */
+} MPI2_BOOT_DEVICE_SAS_WWID,
+	*PTR_MPI2_BOOT_DEVICE_SAS_WWID,
+	Mpi2BootDeviceSasWwid_t,
+	*pMpi2BootDeviceSasWwid_t;
+
+typedef struct _MPI2_BOOT_DEVICE_ENCLOSURE_SLOT {
+	U64         EnclosureLogicalID;                     /*0x00 */
+	U32         Reserved1;                              /*0x08 */
+	U32         Reserved2;                              /*0x0C */
+	U16         SlotNumber;                             /*0x10 */
+	U16         Reserved3;                              /*0x12 */
+	U32         Reserved4;                              /*0x14 */
+} MPI2_BOOT_DEVICE_ENCLOSURE_SLOT,
+	*PTR_MPI2_BOOT_DEVICE_ENCLOSURE_SLOT,
+	Mpi2BootDeviceEnclosureSlot_t,
+	*pMpi2BootDeviceEnclosureSlot_t;
+
+typedef struct _MPI2_BOOT_DEVICE_DEVICE_NAME {
+	U64         DeviceName;                             /*0x00 */
+	U8          LUN[8];                                 /*0x08 */
+	U32         Reserved1;                              /*0x10 */
+	U32         Reserved2;                              /*0x14 */
+} MPI2_BOOT_DEVICE_DEVICE_NAME,
+	*PTR_MPI2_BOOT_DEVICE_DEVICE_NAME,
+	Mpi2BootDeviceDeviceName_t,
+	*pMpi2BootDeviceDeviceName_t;
+
+typedef union _MPI2_MPI2_BIOSPAGE2_BOOT_DEVICE {
+	MPI2_BOOT_DEVICE_ADAPTER_ORDER  AdapterOrder;
+	MPI2_BOOT_DEVICE_SAS_WWID       SasWwid;
+	MPI2_BOOT_DEVICE_ENCLOSURE_SLOT EnclosureSlot;
+	MPI2_BOOT_DEVICE_DEVICE_NAME    DeviceName;
+} MPI2_BIOSPAGE2_BOOT_DEVICE,
+	*PTR_MPI2_BIOSPAGE2_BOOT_DEVICE,
+	Mpi2BiosPage2BootDevice_t,
+	*pMpi2BiosPage2BootDevice_t;
+
+typedef struct _MPI2_CONFIG_PAGE_BIOS_2 {
+	MPI2_CONFIG_PAGE_HEADER     Header;                 /*0x00 */
+	U32                         Reserved1;              /*0x04 */
+	U32                         Reserved2;              /*0x08 */
+	U32                         Reserved3;              /*0x0C */
+	U32                         Reserved4;              /*0x10 */
+	U32                         Reserved5;              /*0x14 */
+	U32                         Reserved6;              /*0x18 */
+	U8                          ReqBootDeviceForm;      /*0x1C */
+	U8                          Reserved7;              /*0x1D */
+	U16                         Reserved8;              /*0x1E */
+	MPI2_BIOSPAGE2_BOOT_DEVICE  RequestedBootDevice;    /*0x20 */
+	U8                          ReqAltBootDeviceForm;   /*0x38 */
+	U8                          Reserved9;              /*0x39 */
+	U16                         Reserved10;             /*0x3A */
+	MPI2_BIOSPAGE2_BOOT_DEVICE  RequestedAltBootDevice; /*0x3C */
+	U8                          CurrentBootDeviceForm;  /*0x58 */
+	U8                          Reserved11;             /*0x59 */
+	U16                         Reserved12;             /*0x5A */
+	MPI2_BIOSPAGE2_BOOT_DEVICE  CurrentBootDevice;      /*0x58 */
+} MPI2_CONFIG_PAGE_BIOS_2, *PTR_MPI2_CONFIG_PAGE_BIOS_2,
+	Mpi2BiosPage2_t, *pMpi2BiosPage2_t;
+
+#define MPI2_BIOSPAGE2_PAGEVERSION                      (0x04)
+
+/*values for BIOS Page 2 BootDeviceForm fields */
+#define MPI2_BIOSPAGE2_FORM_MASK                        (0x0F)
+#define MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED         (0x00)
+#define MPI2_BIOSPAGE2_FORM_SAS_WWID                    (0x05)
+#define MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT              (0x06)
+#define MPI2_BIOSPAGE2_FORM_DEVICE_NAME                 (0x07)
+
+
+/*BIOS Page 3 */
+
+typedef struct _MPI2_ADAPTER_INFO {
+	U8      PciBusNumber;                        /*0x00 */
+	U8      PciDeviceAndFunctionNumber;          /*0x01 */
+	U16     AdapterFlags;                        /*0x02 */
+} MPI2_ADAPTER_INFO, *PTR_MPI2_ADAPTER_INFO,
+	Mpi2AdapterInfo_t, *pMpi2AdapterInfo_t;
+
+#define MPI2_ADAPTER_INFO_FLAGS_EMBEDDED                (0x0001)
+#define MPI2_ADAPTER_INFO_FLAGS_INIT_STATUS             (0x0002)
+
+typedef struct _MPI2_CONFIG_PAGE_BIOS_3 {
+	MPI2_CONFIG_PAGE_HEADER Header;              /*0x00 */
+	U32                     GlobalFlags;         /*0x04 */
+	U32                     BiosVersion;         /*0x08 */
+	MPI2_ADAPTER_INFO       AdapterOrder[4];     /*0x0C */
+	U32                     Reserved1;           /*0x1C */
+} MPI2_CONFIG_PAGE_BIOS_3,
+	*PTR_MPI2_CONFIG_PAGE_BIOS_3,
+	Mpi2BiosPage3_t, *pMpi2BiosPage3_t;
+
+#define MPI2_BIOSPAGE3_PAGEVERSION                      (0x00)
+
+/*values for BIOS Page 3 GlobalFlags */
+#define MPI2_BIOSPAGE3_FLAGS_PAUSE_ON_ERROR             (0x00000002)
+#define MPI2_BIOSPAGE3_FLAGS_VERBOSE_ENABLE             (0x00000004)
+#define MPI2_BIOSPAGE3_FLAGS_HOOK_INT_40_DISABLE        (0x00000010)
+
+#define MPI2_BIOSPAGE3_FLAGS_DEV_LIST_DISPLAY_MASK      (0x000000E0)
+#define MPI2_BIOSPAGE3_FLAGS_INSTALLED_DEV_DISPLAY      (0x00000000)
+#define MPI2_BIOSPAGE3_FLAGS_ADAPTER_DISPLAY            (0x00000020)
+#define MPI2_BIOSPAGE3_FLAGS_ADAPTER_DEV_DISPLAY        (0x00000040)
+
+
+/*BIOS Page 4 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhys at runtime.
+ */
+#ifndef MPI2_BIOS_PAGE_4_PHY_ENTRIES
+#define MPI2_BIOS_PAGE_4_PHY_ENTRIES        (1)
+#endif
+
+typedef struct _MPI2_BIOS4_ENTRY {
+	U64                     ReassignmentWWID;       /*0x00 */
+	U64                     ReassignmentDeviceName; /*0x08 */
+} MPI2_BIOS4_ENTRY, *PTR_MPI2_BIOS4_ENTRY,
+	Mpi2MBios4Entry_t, *pMpi2Bios4Entry_t;
+
+typedef struct _MPI2_CONFIG_PAGE_BIOS_4 {
+	MPI2_CONFIG_PAGE_HEADER Header;             /*0x00 */
+	U8                      NumPhys;            /*0x04 */
+	U8                      Reserved1;          /*0x05 */
+	U16                     Reserved2;          /*0x06 */
+	MPI2_BIOS4_ENTRY
+		Phy[MPI2_BIOS_PAGE_4_PHY_ENTRIES];  /*0x08 */
+} MPI2_CONFIG_PAGE_BIOS_4, *PTR_MPI2_CONFIG_PAGE_BIOS_4,
+	Mpi2BiosPage4_t, *pMpi2BiosPage4_t;
+
+#define MPI2_BIOSPAGE4_PAGEVERSION                      (0x01)
+
+
+/****************************************************************************
+*  RAID Volume Config Pages
+****************************************************************************/
+
+/*RAID Volume Page 0 */
+
+typedef struct _MPI2_RAIDVOL0_PHYS_DISK {
+	U8                      RAIDSetNum;        /*0x00 */
+	U8                      PhysDiskMap;       /*0x01 */
+	U8                      PhysDiskNum;       /*0x02 */
+	U8                      Reserved;          /*0x03 */
+} MPI2_RAIDVOL0_PHYS_DISK, *PTR_MPI2_RAIDVOL0_PHYS_DISK,
+	Mpi2RaidVol0PhysDisk_t, *pMpi2RaidVol0PhysDisk_t;
+
+/*defines for the PhysDiskMap field */
+#define MPI2_RAIDVOL0_PHYSDISK_PRIMARY                  (0x01)
+#define MPI2_RAIDVOL0_PHYSDISK_SECONDARY                (0x02)
+
+typedef struct _MPI2_RAIDVOL0_SETTINGS {
+	U16                     Settings;          /*0x00 */
+	U8                      HotSparePool;      /*0x01 */
+	U8                      Reserved;          /*0x02 */
+} MPI2_RAIDVOL0_SETTINGS, *PTR_MPI2_RAIDVOL0_SETTINGS,
+	Mpi2RaidVol0Settings_t,
+	*pMpi2RaidVol0Settings_t;
+
+/*RAID Volume Page 0 HotSparePool defines, also used in RAID Physical Disk */
+#define MPI2_RAID_HOT_SPARE_POOL_0                      (0x01)
+#define MPI2_RAID_HOT_SPARE_POOL_1                      (0x02)
+#define MPI2_RAID_HOT_SPARE_POOL_2                      (0x04)
+#define MPI2_RAID_HOT_SPARE_POOL_3                      (0x08)
+#define MPI2_RAID_HOT_SPARE_POOL_4                      (0x10)
+#define MPI2_RAID_HOT_SPARE_POOL_5                      (0x20)
+#define MPI2_RAID_HOT_SPARE_POOL_6                      (0x40)
+#define MPI2_RAID_HOT_SPARE_POOL_7                      (0x80)
+
+/*RAID Volume Page 0 VolumeSettings defines */
+#define MPI2_RAIDVOL0_SETTING_USE_PRODUCT_ID_SUFFIX     (0x0008)
+#define MPI2_RAIDVOL0_SETTING_AUTO_CONFIG_HSWAP_DISABLE (0x0004)
+
+#define MPI2_RAIDVOL0_SETTING_MASK_WRITE_CACHING        (0x0003)
+#define MPI2_RAIDVOL0_SETTING_UNCHANGED                 (0x0000)
+#define MPI2_RAIDVOL0_SETTING_DISABLE_WRITE_CACHING     (0x0001)
+#define MPI2_RAIDVOL0_SETTING_ENABLE_WRITE_CACHING      (0x0002)
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhysDisks at runtime.
+ */
+#ifndef MPI2_RAID_VOL_PAGE_0_PHYSDISK_MAX
+#define MPI2_RAID_VOL_PAGE_0_PHYSDISK_MAX       (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_RAID_VOL_0 {
+	MPI2_CONFIG_PAGE_HEADER Header;            /*0x00 */
+	U16                     DevHandle;         /*0x04 */
+	U8                      VolumeState;       /*0x06 */
+	U8                      VolumeType;        /*0x07 */
+	U32                     VolumeStatusFlags; /*0x08 */
+	MPI2_RAIDVOL0_SETTINGS  VolumeSettings;    /*0x0C */
+	U64                     MaxLBA;            /*0x10 */
+	U32                     StripeSize;        /*0x18 */
+	U16                     BlockSize;         /*0x1C */
+	U16                     Reserved1;         /*0x1E */
+	U8                      SupportedPhysDisks;/*0x20 */
+	U8                      ResyncRate;        /*0x21 */
+	U16                     DataScrubDuration; /*0x22 */
+	U8                      NumPhysDisks;      /*0x24 */
+	U8                      Reserved2;         /*0x25 */
+	U8                      Reserved3;         /*0x26 */
+	U8                      InactiveStatus;    /*0x27 */
+	MPI2_RAIDVOL0_PHYS_DISK
+	PhysDisk[MPI2_RAID_VOL_PAGE_0_PHYSDISK_MAX]; /*0x28 */
+} MPI2_CONFIG_PAGE_RAID_VOL_0,
+	*PTR_MPI2_CONFIG_PAGE_RAID_VOL_0,
+	Mpi2RaidVolPage0_t, *pMpi2RaidVolPage0_t;
+
+#define MPI2_RAIDVOLPAGE0_PAGEVERSION           (0x0A)
+
+/*values for RAID VolumeState */
+#define MPI2_RAID_VOL_STATE_MISSING                         (0x00)
+#define MPI2_RAID_VOL_STATE_FAILED                          (0x01)
+#define MPI2_RAID_VOL_STATE_INITIALIZING                    (0x02)
+#define MPI2_RAID_VOL_STATE_ONLINE                          (0x03)
+#define MPI2_RAID_VOL_STATE_DEGRADED                        (0x04)
+#define MPI2_RAID_VOL_STATE_OPTIMAL                         (0x05)
+
+/*values for RAID VolumeType */
+#define MPI2_RAID_VOL_TYPE_RAID0                            (0x00)
+#define MPI2_RAID_VOL_TYPE_RAID1E                           (0x01)
+#define MPI2_RAID_VOL_TYPE_RAID1                            (0x02)
+#define MPI2_RAID_VOL_TYPE_RAID10                           (0x05)
+#define MPI2_RAID_VOL_TYPE_UNKNOWN                          (0xFF)
+
+/*values for RAID Volume Page 0 VolumeStatusFlags field */
+#define MPI2_RAIDVOL0_STATUS_FLAG_PENDING_RESYNC            (0x02000000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_BACKG_INIT_PENDING        (0x01000000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_MDC_PENDING               (0x00800000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_USER_CONSIST_PENDING      (0x00400000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_MAKE_DATA_CONSISTENT      (0x00200000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_DATA_SCRUB                (0x00100000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_CONSISTENCY_CHECK         (0x00080000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_CAPACITY_EXPANSION        (0x00040000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_BACKGROUND_INIT           (0x00020000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS        (0x00010000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_VOL_NOT_CONSISTENT        (0x00000080)
+#define MPI2_RAIDVOL0_STATUS_FLAG_OCE_ALLOWED               (0x00000040)
+#define MPI2_RAIDVOL0_STATUS_FLAG_BGI_COMPLETE              (0x00000020)
+#define MPI2_RAIDVOL0_STATUS_FLAG_1E_OFFSET_MIRROR          (0x00000000)
+#define MPI2_RAIDVOL0_STATUS_FLAG_1E_ADJACENT_MIRROR        (0x00000010)
+#define MPI2_RAIDVOL0_STATUS_FLAG_BAD_BLOCK_TABLE_FULL      (0x00000008)
+#define MPI2_RAIDVOL0_STATUS_FLAG_VOLUME_INACTIVE           (0x00000004)
+#define MPI2_RAIDVOL0_STATUS_FLAG_QUIESCED                  (0x00000002)
+#define MPI2_RAIDVOL0_STATUS_FLAG_ENABLED                   (0x00000001)
+
+/*values for RAID Volume Page 0 SupportedPhysDisks field */
+#define MPI2_RAIDVOL0_SUPPORT_SOLID_STATE_DISKS             (0x08)
+#define MPI2_RAIDVOL0_SUPPORT_HARD_DISKS                    (0x04)
+#define MPI2_RAIDVOL0_SUPPORT_SAS_PROTOCOL                  (0x02)
+#define MPI2_RAIDVOL0_SUPPORT_SATA_PROTOCOL                 (0x01)
+
+/*values for RAID Volume Page 0 InactiveStatus field */
+#define MPI2_RAIDVOLPAGE0_UNKNOWN_INACTIVE                  (0x00)
+#define MPI2_RAIDVOLPAGE0_STALE_METADATA_INACTIVE           (0x01)
+#define MPI2_RAIDVOLPAGE0_FOREIGN_VOLUME_INACTIVE           (0x02)
+#define MPI2_RAIDVOLPAGE0_INSUFFICIENT_RESOURCE_INACTIVE    (0x03)
+#define MPI2_RAIDVOLPAGE0_CLONE_VOLUME_INACTIVE             (0x04)
+#define MPI2_RAIDVOLPAGE0_INSUFFICIENT_METADATA_INACTIVE    (0x05)
+#define MPI2_RAIDVOLPAGE0_PREVIOUSLY_DELETED                (0x06)
+
+
+/*RAID Volume Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_RAID_VOL_1 {
+	MPI2_CONFIG_PAGE_HEADER Header;                     /*0x00 */
+	U16                     DevHandle;                  /*0x04 */
+	U16                     Reserved0;                  /*0x06 */
+	U8                      GUID[24];                   /*0x08 */
+	U8                      Name[16];                   /*0x20 */
+	U64                     WWID;                       /*0x30 */
+	U32                     Reserved1;                  /*0x38 */
+	U32                     Reserved2;                  /*0x3C */
+} MPI2_CONFIG_PAGE_RAID_VOL_1,
+	*PTR_MPI2_CONFIG_PAGE_RAID_VOL_1,
+	Mpi2RaidVolPage1_t, *pMpi2RaidVolPage1_t;
+
+#define MPI2_RAIDVOLPAGE1_PAGEVERSION           (0x03)
+
+
+/****************************************************************************
+*  RAID Physical Disk Config Pages
+****************************************************************************/
+
+/*RAID Physical Disk Page 0 */
+
+typedef struct _MPI2_RAIDPHYSDISK0_SETTINGS {
+	U16                     Reserved1;                  /*0x00 */
+	U8                      HotSparePool;               /*0x02 */
+	U8                      Reserved2;                  /*0x03 */
+} MPI2_RAIDPHYSDISK0_SETTINGS,
+	*PTR_MPI2_RAIDPHYSDISK0_SETTINGS,
+	Mpi2RaidPhysDisk0Settings_t,
+	*pMpi2RaidPhysDisk0Settings_t;
+
+/*use MPI2_RAID_HOT_SPARE_POOL_ defines for the HotSparePool field */
+
+typedef struct _MPI2_RAIDPHYSDISK0_INQUIRY_DATA {
+	U8                      VendorID[8];                /*0x00 */
+	U8                      ProductID[16];              /*0x08 */
+	U8                      ProductRevLevel[4];         /*0x18 */
+	U8                      SerialNum[32];              /*0x1C */
+} MPI2_RAIDPHYSDISK0_INQUIRY_DATA,
+	*PTR_MPI2_RAIDPHYSDISK0_INQUIRY_DATA,
+	Mpi2RaidPhysDisk0InquiryData_t,
+	*pMpi2RaidPhysDisk0InquiryData_t;
+
+typedef struct _MPI2_CONFIG_PAGE_RD_PDISK_0 {
+	MPI2_CONFIG_PAGE_HEADER         Header;             /*0x00 */
+	U16                             DevHandle;          /*0x04 */
+	U8                              Reserved1;          /*0x06 */
+	U8                              PhysDiskNum;        /*0x07 */
+	MPI2_RAIDPHYSDISK0_SETTINGS     PhysDiskSettings;   /*0x08 */
+	U32                             Reserved2;          /*0x0C */
+	MPI2_RAIDPHYSDISK0_INQUIRY_DATA InquiryData;        /*0x10 */
+	U32                             Reserved3;          /*0x4C */
+	U8                              PhysDiskState;      /*0x50 */
+	U8                              OfflineReason;      /*0x51 */
+	U8                              IncompatibleReason; /*0x52 */
+	U8                              PhysDiskAttributes; /*0x53 */
+	U32                             PhysDiskStatusFlags;/*0x54 */
+	U64                             DeviceMaxLBA;       /*0x58 */
+	U64                             HostMaxLBA;         /*0x60 */
+	U64                             CoercedMaxLBA;      /*0x68 */
+	U16                             BlockSize;          /*0x70 */
+	U16                             Reserved5;          /*0x72 */
+	U32                             Reserved6;          /*0x74 */
+} MPI2_CONFIG_PAGE_RD_PDISK_0,
+	*PTR_MPI2_CONFIG_PAGE_RD_PDISK_0,
+	Mpi2RaidPhysDiskPage0_t,
+	*pMpi2RaidPhysDiskPage0_t;
+
+#define MPI2_RAIDPHYSDISKPAGE0_PAGEVERSION          (0x05)
+
+/*PhysDiskState defines */
+#define MPI2_RAID_PD_STATE_NOT_CONFIGURED               (0x00)
+#define MPI2_RAID_PD_STATE_NOT_COMPATIBLE               (0x01)
+#define MPI2_RAID_PD_STATE_OFFLINE                      (0x02)
+#define MPI2_RAID_PD_STATE_ONLINE                       (0x03)
+#define MPI2_RAID_PD_STATE_HOT_SPARE                    (0x04)
+#define MPI2_RAID_PD_STATE_DEGRADED                     (0x05)
+#define MPI2_RAID_PD_STATE_REBUILDING                   (0x06)
+#define MPI2_RAID_PD_STATE_OPTIMAL                      (0x07)
+
+/*OfflineReason defines */
+#define MPI2_PHYSDISK0_ONLINE                           (0x00)
+#define MPI2_PHYSDISK0_OFFLINE_MISSING                  (0x01)
+#define MPI2_PHYSDISK0_OFFLINE_FAILED                   (0x03)
+#define MPI2_PHYSDISK0_OFFLINE_INITIALIZING             (0x04)
+#define MPI2_PHYSDISK0_OFFLINE_REQUESTED                (0x05)
+#define MPI2_PHYSDISK0_OFFLINE_FAILED_REQUESTED         (0x06)
+#define MPI2_PHYSDISK0_OFFLINE_OTHER                    (0xFF)
+
+/*IncompatibleReason defines */
+#define MPI2_PHYSDISK0_COMPATIBLE                       (0x00)
+#define MPI2_PHYSDISK0_INCOMPATIBLE_PROTOCOL            (0x01)
+#define MPI2_PHYSDISK0_INCOMPATIBLE_BLOCKSIZE           (0x02)
+#define MPI2_PHYSDISK0_INCOMPATIBLE_MAX_LBA             (0x03)
+#define MPI2_PHYSDISK0_INCOMPATIBLE_SATA_EXTENDED_CMD   (0x04)
+#define MPI2_PHYSDISK0_INCOMPATIBLE_REMOVEABLE_MEDIA    (0x05)
+#define MPI2_PHYSDISK0_INCOMPATIBLE_MEDIA_TYPE          (0x06)
+#define MPI2_PHYSDISK0_INCOMPATIBLE_UNKNOWN             (0xFF)
+
+/*PhysDiskAttributes defines */
+#define MPI2_PHYSDISK0_ATTRIB_MEDIA_MASK                (0x0C)
+#define MPI2_PHYSDISK0_ATTRIB_SOLID_STATE_DRIVE         (0x08)
+#define MPI2_PHYSDISK0_ATTRIB_HARD_DISK_DRIVE           (0x04)
+
+#define MPI2_PHYSDISK0_ATTRIB_PROTOCOL_MASK             (0x03)
+#define MPI2_PHYSDISK0_ATTRIB_SAS_PROTOCOL              (0x02)
+#define MPI2_PHYSDISK0_ATTRIB_SATA_PROTOCOL             (0x01)
+
+/*PhysDiskStatusFlags defines */
+#define MPI2_PHYSDISK0_STATUS_FLAG_NOT_CERTIFIED        (0x00000040)
+#define MPI2_PHYSDISK0_STATUS_FLAG_OCE_TARGET           (0x00000020)
+#define MPI2_PHYSDISK0_STATUS_FLAG_WRITE_CACHE_ENABLED  (0x00000010)
+#define MPI2_PHYSDISK0_STATUS_FLAG_OPTIMAL_PREVIOUS     (0x00000000)
+#define MPI2_PHYSDISK0_STATUS_FLAG_NOT_OPTIMAL_PREVIOUS (0x00000008)
+#define MPI2_PHYSDISK0_STATUS_FLAG_INACTIVE_VOLUME      (0x00000004)
+#define MPI2_PHYSDISK0_STATUS_FLAG_QUIESCED             (0x00000002)
+#define MPI2_PHYSDISK0_STATUS_FLAG_OUT_OF_SYNC          (0x00000001)
+
+
+/*RAID Physical Disk Page 1 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhysDiskPaths at runtime.
+ */
+#ifndef MPI2_RAID_PHYS_DISK1_PATH_MAX
+#define MPI2_RAID_PHYS_DISK1_PATH_MAX   (1)
+#endif
+
+typedef struct _MPI2_RAIDPHYSDISK1_PATH {
+	U16             DevHandle;          /*0x00 */
+	U16             Reserved1;          /*0x02 */
+	U64             WWID;               /*0x04 */
+	U64             OwnerWWID;          /*0x0C */
+	U8              OwnerIdentifier;    /*0x14 */
+	U8              Reserved2;          /*0x15 */
+	U16             Flags;              /*0x16 */
+} MPI2_RAIDPHYSDISK1_PATH, *PTR_MPI2_RAIDPHYSDISK1_PATH,
+	Mpi2RaidPhysDisk1Path_t,
+	*pMpi2RaidPhysDisk1Path_t;
+
+/*RAID Physical Disk Page 1 Physical Disk Path Flags field defines */
+#define MPI2_RAID_PHYSDISK1_FLAG_PRIMARY        (0x0004)
+#define MPI2_RAID_PHYSDISK1_FLAG_BROKEN         (0x0002)
+#define MPI2_RAID_PHYSDISK1_FLAG_INVALID        (0x0001)
+
+typedef struct _MPI2_CONFIG_PAGE_RD_PDISK_1 {
+	MPI2_CONFIG_PAGE_HEADER         Header;             /*0x00 */
+	U8                              NumPhysDiskPaths;   /*0x04 */
+	U8                              PhysDiskNum;        /*0x05 */
+	U16                             Reserved1;          /*0x06 */
+	U32                             Reserved2;          /*0x08 */
+	MPI2_RAIDPHYSDISK1_PATH
+		PhysicalDiskPath[MPI2_RAID_PHYS_DISK1_PATH_MAX];/*0x0C */
+} MPI2_CONFIG_PAGE_RD_PDISK_1,
+	*PTR_MPI2_CONFIG_PAGE_RD_PDISK_1,
+	Mpi2RaidPhysDiskPage1_t,
+	*pMpi2RaidPhysDiskPage1_t;
+
+#define MPI2_RAIDPHYSDISKPAGE1_PAGEVERSION          (0x02)
+
+
+/****************************************************************************
+*  values for fields used by several types of SAS Config Pages
+****************************************************************************/
+
+/*values for NegotiatedLinkRates fields */
+#define MPI2_SAS_NEG_LINK_RATE_MASK_LOGICAL             (0xF0)
+#define MPI2_SAS_NEG_LINK_RATE_SHIFT_LOGICAL            (4)
+#define MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL            (0x0F)
+/*link rates used for Negotiated Physical and Logical Link Rate */
+#define MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE        (0x00)
+#define MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED             (0x01)
+#define MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED       (0x02)
+#define MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE        (0x03)
+#define MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR            (0x04)
+#define MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS    (0x05)
+#define MPI2_SAS_NEG_LINK_RATE_UNSUPPORTED_PHY          (0x06)
+#define MPI2_SAS_NEG_LINK_RATE_1_5                      (0x08)
+#define MPI2_SAS_NEG_LINK_RATE_3_0                      (0x09)
+#define MPI2_SAS_NEG_LINK_RATE_6_0                      (0x0A)
+#define MPI25_SAS_NEG_LINK_RATE_12_0                    (0x0B)
+
+
+/*values for AttachedPhyInfo fields */
+#define MPI2_SAS_APHYINFO_INSIDE_ZPSDS_PERSISTENT       (0x00000040)
+#define MPI2_SAS_APHYINFO_REQUESTED_INSIDE_ZPSDS        (0x00000020)
+#define MPI2_SAS_APHYINFO_BREAK_REPLY_CAPABLE           (0x00000010)
+
+#define MPI2_SAS_APHYINFO_REASON_MASK                   (0x0000000F)
+#define MPI2_SAS_APHYINFO_REASON_UNKNOWN                (0x00000000)
+#define MPI2_SAS_APHYINFO_REASON_POWER_ON               (0x00000001)
+#define MPI2_SAS_APHYINFO_REASON_HARD_RESET             (0x00000002)
+#define MPI2_SAS_APHYINFO_REASON_SMP_PHY_CONTROL        (0x00000003)
+#define MPI2_SAS_APHYINFO_REASON_LOSS_OF_SYNC           (0x00000004)
+#define MPI2_SAS_APHYINFO_REASON_MULTIPLEXING_SEQ       (0x00000005)
+#define MPI2_SAS_APHYINFO_REASON_IT_NEXUS_LOSS_TIMER    (0x00000006)
+#define MPI2_SAS_APHYINFO_REASON_BREAK_TIMEOUT          (0x00000007)
+#define MPI2_SAS_APHYINFO_REASON_PHY_TEST_STOPPED       (0x00000008)
+
+
+/*values for PhyInfo fields */
+#define MPI2_SAS_PHYINFO_PHY_VACANT                     (0x80000000)
+
+#define MPI2_SAS_PHYINFO_PHY_POWER_CONDITION_MASK       (0x18000000)
+#define MPI2_SAS_PHYINFO_SHIFT_PHY_POWER_CONDITION      (27)
+#define MPI2_SAS_PHYINFO_PHY_POWER_ACTIVE               (0x00000000)
+#define MPI2_SAS_PHYINFO_PHY_POWER_PARTIAL              (0x08000000)
+#define MPI2_SAS_PHYINFO_PHY_POWER_SLUMBER              (0x10000000)
+
+#define MPI2_SAS_PHYINFO_CHANGED_REQ_INSIDE_ZPSDS       (0x04000000)
+#define MPI2_SAS_PHYINFO_INSIDE_ZPSDS_PERSISTENT        (0x02000000)
+#define MPI2_SAS_PHYINFO_REQ_INSIDE_ZPSDS               (0x01000000)
+#define MPI2_SAS_PHYINFO_ZONE_GROUP_PERSISTENT          (0x00400000)
+#define MPI2_SAS_PHYINFO_INSIDE_ZPSDS                   (0x00200000)
+#define MPI2_SAS_PHYINFO_ZONING_ENABLED                 (0x00100000)
+
+#define MPI2_SAS_PHYINFO_REASON_MASK                    (0x000F0000)
+#define MPI2_SAS_PHYINFO_REASON_UNKNOWN                 (0x00000000)
+#define MPI2_SAS_PHYINFO_REASON_POWER_ON                (0x00010000)
+#define MPI2_SAS_PHYINFO_REASON_HARD_RESET              (0x00020000)
+#define MPI2_SAS_PHYINFO_REASON_SMP_PHY_CONTROL         (0x00030000)
+#define MPI2_SAS_PHYINFO_REASON_LOSS_OF_SYNC            (0x00040000)
+#define MPI2_SAS_PHYINFO_REASON_MULTIPLEXING_SEQ        (0x00050000)
+#define MPI2_SAS_PHYINFO_REASON_IT_NEXUS_LOSS_TIMER     (0x00060000)
+#define MPI2_SAS_PHYINFO_REASON_BREAK_TIMEOUT           (0x00070000)
+#define MPI2_SAS_PHYINFO_REASON_PHY_TEST_STOPPED        (0x00080000)
+
+#define MPI2_SAS_PHYINFO_MULTIPLEXING_SUPPORTED         (0x00008000)
+#define MPI2_SAS_PHYINFO_SATA_PORT_ACTIVE               (0x00004000)
+#define MPI2_SAS_PHYINFO_SATA_PORT_SELECTOR_PRESENT     (0x00002000)
+#define MPI2_SAS_PHYINFO_VIRTUAL_PHY                    (0x00001000)
+
+#define MPI2_SAS_PHYINFO_MASK_PARTIAL_PATHWAY_TIME      (0x00000F00)
+#define MPI2_SAS_PHYINFO_SHIFT_PARTIAL_PATHWAY_TIME     (8)
+
+#define MPI2_SAS_PHYINFO_MASK_ROUTING_ATTRIBUTE         (0x000000F0)
+#define MPI2_SAS_PHYINFO_DIRECT_ROUTING                 (0x00000000)
+#define MPI2_SAS_PHYINFO_SUBTRACTIVE_ROUTING            (0x00000010)
+#define MPI2_SAS_PHYINFO_TABLE_ROUTING                  (0x00000020)
+
+
+/*values for SAS ProgrammedLinkRate fields */
+#define MPI2_SAS_PRATE_MAX_RATE_MASK                    (0xF0)
+#define MPI2_SAS_PRATE_MAX_RATE_NOT_PROGRAMMABLE        (0x00)
+#define MPI2_SAS_PRATE_MAX_RATE_1_5                     (0x80)
+#define MPI2_SAS_PRATE_MAX_RATE_3_0                     (0x90)
+#define MPI2_SAS_PRATE_MAX_RATE_6_0                     (0xA0)
+#define MPI2_SAS_PRATE_MIN_RATE_MASK                    (0x0F)
+#define MPI2_SAS_PRATE_MIN_RATE_NOT_PROGRAMMABLE        (0x00)
+#define MPI2_SAS_PRATE_MIN_RATE_1_5                     (0x08)
+#define MPI2_SAS_PRATE_MIN_RATE_3_0                     (0x09)
+#define MPI2_SAS_PRATE_MIN_RATE_6_0                     (0x0A)
+#define MPI25_SAS_PRATE_MIN_RATE_12_0                   (0x0B)
+
+
+/*values for SAS HwLinkRate fields */
+#define MPI2_SAS_HWRATE_MAX_RATE_MASK                   (0xF0)
+#define MPI2_SAS_HWRATE_MAX_RATE_1_5                    (0x80)
+#define MPI2_SAS_HWRATE_MAX_RATE_3_0                    (0x90)
+#define MPI2_SAS_HWRATE_MAX_RATE_6_0                    (0xA0)
+#define MPI2_SAS_HWRATE_MIN_RATE_MASK                   (0x0F)
+#define MPI2_SAS_HWRATE_MIN_RATE_1_5                    (0x08)
+#define MPI2_SAS_HWRATE_MIN_RATE_3_0                    (0x09)
+#define MPI2_SAS_HWRATE_MIN_RATE_6_0                    (0x0A)
+#define MPI25_SAS_HWRATE_MIN_RATE_12_0                  (0x0B)
+
+
+
+/****************************************************************************
+*  SAS IO Unit Config Pages
+****************************************************************************/
+
+/*SAS IO Unit Page 0 */
+
+typedef struct _MPI2_SAS_IO_UNIT0_PHY_DATA {
+	U8          Port;                   /*0x00 */
+	U8          PortFlags;              /*0x01 */
+	U8          PhyFlags;               /*0x02 */
+	U8          NegotiatedLinkRate;     /*0x03 */
+	U32         ControllerPhyDeviceInfo;/*0x04 */
+	U16         AttachedDevHandle;      /*0x08 */
+	U16         ControllerDevHandle;    /*0x0A */
+	U32         DiscoveryStatus;        /*0x0C */
+	U32         Reserved;               /*0x10 */
+} MPI2_SAS_IO_UNIT0_PHY_DATA,
+	*PTR_MPI2_SAS_IO_UNIT0_PHY_DATA,
+	Mpi2SasIOUnit0PhyData_t,
+	*pMpi2SasIOUnit0PhyData_t;
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhys at runtime.
+ */
+#ifndef MPI2_SAS_IOUNIT0_PHY_MAX
+#define MPI2_SAS_IOUNIT0_PHY_MAX        (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header;   /*0x00 */
+	U32                                 Reserved1;/*0x08 */
+	U8                                  NumPhys;  /*0x0C */
+	U8                                  Reserved2;/*0x0D */
+	U16                                 Reserved3;/*0x0E */
+	MPI2_SAS_IO_UNIT0_PHY_DATA
+		PhyData[MPI2_SAS_IOUNIT0_PHY_MAX];    /*0x10 */
+} MPI2_CONFIG_PAGE_SASIOUNIT_0,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT_0,
+	Mpi2SasIOUnitPage0_t, *pMpi2SasIOUnitPage0_t;
+
+#define MPI2_SASIOUNITPAGE0_PAGEVERSION                     (0x05)
+
+/*values for SAS IO Unit Page 0 PortFlags */
+#define MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS     (0x08)
+#define MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG          (0x01)
+
+/*values for SAS IO Unit Page 0 PhyFlags */
+#define MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED             (0x10)
+#define MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED               (0x08)
+
+/*use MPI2_SAS_NEG_LINK_RATE_ defines for the NegotiatedLinkRate field */
+
+/*see mpi2_sas.h for values for
+ *SAS IO Unit Page 0 ControllerPhyDeviceInfo values */
+
+/*values for SAS IO Unit Page 0 DiscoveryStatus */
+#define MPI2_SASIOUNIT0_DS_MAX_ENCLOSURES_EXCEED            (0x80000000)
+#define MPI2_SASIOUNIT0_DS_MAX_EXPANDERS_EXCEED             (0x40000000)
+#define MPI2_SASIOUNIT0_DS_MAX_DEVICES_EXCEED               (0x20000000)
+#define MPI2_SASIOUNIT0_DS_MAX_TOPO_PHYS_EXCEED             (0x10000000)
+#define MPI2_SASIOUNIT0_DS_DOWNSTREAM_INITIATOR             (0x08000000)
+#define MPI2_SASIOUNIT0_DS_MULTI_SUBTRACTIVE_SUBTRACTIVE    (0x00008000)
+#define MPI2_SASIOUNIT0_DS_EXP_MULTI_SUBTRACTIVE            (0x00004000)
+#define MPI2_SASIOUNIT0_DS_MULTI_PORT_DOMAIN                (0x00002000)
+#define MPI2_SASIOUNIT0_DS_TABLE_TO_SUBTRACTIVE_LINK        (0x00001000)
+#define MPI2_SASIOUNIT0_DS_UNSUPPORTED_DEVICE               (0x00000800)
+#define MPI2_SASIOUNIT0_DS_TABLE_LINK                       (0x00000400)
+#define MPI2_SASIOUNIT0_DS_SUBTRACTIVE_LINK                 (0x00000200)
+#define MPI2_SASIOUNIT0_DS_SMP_CRC_ERROR                    (0x00000100)
+#define MPI2_SASIOUNIT0_DS_SMP_FUNCTION_FAILED              (0x00000080)
+#define MPI2_SASIOUNIT0_DS_INDEX_NOT_EXIST                  (0x00000040)
+#define MPI2_SASIOUNIT0_DS_OUT_ROUTE_ENTRIES                (0x00000020)
+#define MPI2_SASIOUNIT0_DS_SMP_TIMEOUT                      (0x00000010)
+#define MPI2_SASIOUNIT0_DS_MULTIPLE_PORTS                   (0x00000004)
+#define MPI2_SASIOUNIT0_DS_UNADDRESSABLE_DEVICE             (0x00000002)
+#define MPI2_SASIOUNIT0_DS_LOOP_DETECTED                    (0x00000001)
+
+
+/*SAS IO Unit Page 1 */
+
+typedef struct _MPI2_SAS_IO_UNIT1_PHY_DATA {
+	U8          Port;                       /*0x00 */
+	U8          PortFlags;                  /*0x01 */
+	U8          PhyFlags;                   /*0x02 */
+	U8          MaxMinLinkRate;             /*0x03 */
+	U32         ControllerPhyDeviceInfo;    /*0x04 */
+	U16         MaxTargetPortConnectTime;   /*0x08 */
+	U16         Reserved1;                  /*0x0A */
+} MPI2_SAS_IO_UNIT1_PHY_DATA,
+	*PTR_MPI2_SAS_IO_UNIT1_PHY_DATA,
+	Mpi2SasIOUnit1PhyData_t,
+	*pMpi2SasIOUnit1PhyData_t;
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhys at runtime.
+ */
+#ifndef MPI2_SAS_IOUNIT1_PHY_MAX
+#define MPI2_SAS_IOUNIT1_PHY_MAX        (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_1 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header; /*0x00 */
+	U16
+		ControlFlags;                       /*0x08 */
+	U16
+		SASNarrowMaxQueueDepth;             /*0x0A */
+	U16
+		AdditionalControlFlags;             /*0x0C */
+	U16
+		SASWideMaxQueueDepth;               /*0x0E */
+	U8
+		NumPhys;                            /*0x10 */
+	U8
+		SATAMaxQDepth;                      /*0x11 */
+	U8
+		ReportDeviceMissingDelay;           /*0x12 */
+	U8
+		IODeviceMissingDelay;               /*0x13 */
+	MPI2_SAS_IO_UNIT1_PHY_DATA
+		PhyData[MPI2_SAS_IOUNIT1_PHY_MAX];  /*0x14 */
+} MPI2_CONFIG_PAGE_SASIOUNIT_1,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT_1,
+	Mpi2SasIOUnitPage1_t, *pMpi2SasIOUnitPage1_t;
+
+#define MPI2_SASIOUNITPAGE1_PAGEVERSION     (0x09)
+
+/*values for SAS IO Unit Page 1 ControlFlags */
+#define MPI2_SASIOUNIT1_CONTROL_DEVICE_SELF_TEST                    (0x8000)
+#define MPI2_SASIOUNIT1_CONTROL_SATA_3_0_MAX                        (0x4000)
+#define MPI2_SASIOUNIT1_CONTROL_SATA_1_5_MAX                        (0x2000)
+#define MPI2_SASIOUNIT1_CONTROL_SATA_SW_PRESERVE                    (0x1000)
+
+#define MPI2_SASIOUNIT1_CONTROL_MASK_DEV_SUPPORT                    (0x0600)
+#define MPI2_SASIOUNIT1_CONTROL_SHIFT_DEV_SUPPORT                   (9)
+#define MPI2_SASIOUNIT1_CONTROL_DEV_SUPPORT_BOTH                    (0x0)
+#define MPI2_SASIOUNIT1_CONTROL_DEV_SAS_SUPPORT                     (0x1)
+#define MPI2_SASIOUNIT1_CONTROL_DEV_SATA_SUPPORT                    (0x2)
+
+#define MPI2_SASIOUNIT1_CONTROL_SATA_48BIT_LBA_REQUIRED             (0x0080)
+#define MPI2_SASIOUNIT1_CONTROL_SATA_SMART_REQUIRED                 (0x0040)
+#define MPI2_SASIOUNIT1_CONTROL_SATA_NCQ_REQUIRED                   (0x0020)
+#define MPI2_SASIOUNIT1_CONTROL_SATA_FUA_REQUIRED                   (0x0010)
+#define MPI2_SASIOUNIT1_CONTROL_TABLE_SUBTRACTIVE_ILLEGAL           (0x0008)
+#define MPI2_SASIOUNIT1_CONTROL_SUBTRACTIVE_ILLEGAL                 (0x0004)
+#define MPI2_SASIOUNIT1_CONTROL_FIRST_LVL_DISC_ONLY                 (0x0002)
+#define MPI2_SASIOUNIT1_CONTROL_CLEAR_AFFILIATION                   (0x0001)
+
+/*values for SAS IO Unit Page 1 AdditionalControlFlags */
+#define MPI2_SASIOUNIT1_ACONTROL_MULTI_PORT_DOMAIN_ILLEGAL          (0x0080)
+#define MPI2_SASIOUNIT1_ACONTROL_SATA_ASYNCHROUNOUS_NOTIFICATION    (0x0040)
+#define MPI2_SASIOUNIT1_ACONTROL_INVALID_TOPOLOGY_CORRECTION        (0x0020)
+#define MPI2_SASIOUNIT1_ACONTROL_PORT_ENABLE_ONLY_SATA_LINK_RESET   (0x0010)
+#define MPI2_SASIOUNIT1_ACONTROL_OTHER_AFFILIATION_SATA_LINK_RESET  (0x0008)
+#define MPI2_SASIOUNIT1_ACONTROL_SELF_AFFILIATION_SATA_LINK_RESET   (0x0004)
+#define MPI2_SASIOUNIT1_ACONTROL_NO_AFFILIATION_SATA_LINK_RESET     (0x0002)
+#define MPI2_SASIOUNIT1_ACONTROL_ALLOW_TABLE_TO_TABLE               (0x0001)
+
+/*defines for SAS IO Unit Page 1 ReportDeviceMissingDelay */
+#define MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK                 (0x7F)
+#define MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16                      (0x80)
+
+/*values for SAS IO Unit Page 1 PortFlags */
+#define MPI2_SASIOUNIT1_PORT_FLAGS_AUTO_PORT_CONFIG                 (0x01)
+
+/*values for SAS IO Unit Page 1 PhyFlags */
+#define MPI2_SASIOUNIT1_PHYFLAGS_ZONING_ENABLE                      (0x10)
+#define MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE                        (0x08)
+
+/*values for SAS IO Unit Page 1 MaxMinLinkRate */
+#define MPI2_SASIOUNIT1_MAX_RATE_MASK                               (0xF0)
+#define MPI2_SASIOUNIT1_MAX_RATE_1_5                                (0x80)
+#define MPI2_SASIOUNIT1_MAX_RATE_3_0                                (0x90)
+#define MPI2_SASIOUNIT1_MAX_RATE_6_0                                (0xA0)
+#define MPI25_SASIOUNIT1_MAX_RATE_12_0                              (0xB0)
+#define MPI2_SASIOUNIT1_MIN_RATE_MASK                               (0x0F)
+#define MPI2_SASIOUNIT1_MIN_RATE_1_5                                (0x08)
+#define MPI2_SASIOUNIT1_MIN_RATE_3_0                                (0x09)
+#define MPI2_SASIOUNIT1_MIN_RATE_6_0                                (0x0A)
+#define MPI25_SASIOUNIT1_MIN_RATE_12_0                              (0x0B)
+
+/*see mpi2_sas.h for values for
+ *SAS IO Unit Page 1 ControllerPhyDeviceInfo values */
+
+
+/*SAS IO Unit Page 4 */
+
+typedef struct _MPI2_SAS_IOUNIT4_SPINUP_GROUP {
+	U8          MaxTargetSpinup;            /*0x00 */
+	U8          SpinupDelay;                /*0x01 */
+	U8          SpinupFlags;                /*0x02 */
+	U8          Reserved1;                  /*0x03 */
+} MPI2_SAS_IOUNIT4_SPINUP_GROUP,
+	*PTR_MPI2_SAS_IOUNIT4_SPINUP_GROUP,
+	Mpi2SasIOUnit4SpinupGroup_t,
+	*pMpi2SasIOUnit4SpinupGroup_t;
+/*defines for SAS IO Unit Page 4 SpinupFlags */
+#define MPI2_SASIOUNIT4_SPINUP_DISABLE_FLAG         (0x01)
+
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhys at runtime.
+ */
+#ifndef MPI2_SAS_IOUNIT4_PHY_MAX
+#define MPI2_SAS_IOUNIT4_PHY_MAX        (4)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_4 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header;/*0x00 */
+	MPI2_SAS_IOUNIT4_SPINUP_GROUP
+		SpinupGroupParameters[4];       /*0x08 */
+	U32
+		Reserved1;                      /*0x18 */
+	U32
+		Reserved2;                      /*0x1C */
+	U32
+		Reserved3;                      /*0x20 */
+	U8
+		BootDeviceWaitTime;             /*0x24 */
+	U8
+		Reserved4;                      /*0x25 */
+	U16
+		Reserved5;                      /*0x26 */
+	U8
+		NumPhys;                        /*0x28 */
+	U8
+		PEInitialSpinupDelay;           /*0x29 */
+	U8
+		PEReplyDelay;                   /*0x2A */
+	U8
+		Flags;                          /*0x2B */
+	U8
+		PHY[MPI2_SAS_IOUNIT4_PHY_MAX];  /*0x2C */
+} MPI2_CONFIG_PAGE_SASIOUNIT_4,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT_4,
+	Mpi2SasIOUnitPage4_t, *pMpi2SasIOUnitPage4_t;
+
+#define MPI2_SASIOUNITPAGE4_PAGEVERSION     (0x02)
+
+/*defines for Flags field */
+#define MPI2_SASIOUNIT4_FLAGS_AUTO_PORTENABLE               (0x01)
+
+/*defines for PHY field */
+#define MPI2_SASIOUNIT4_PHY_SPINUP_GROUP_MASK               (0x03)
+
+
+/*SAS IO Unit Page 5 */
+
+typedef struct _MPI2_SAS_IO_UNIT5_PHY_PM_SETTINGS {
+	U8          ControlFlags;               /*0x00 */
+	U8          PortWidthModGroup;          /*0x01 */
+	U16         InactivityTimerExponent;    /*0x02 */
+	U8          SATAPartialTimeout;         /*0x04 */
+	U8          Reserved2;                  /*0x05 */
+	U8          SATASlumberTimeout;         /*0x06 */
+	U8          Reserved3;                  /*0x07 */
+	U8          SASPartialTimeout;          /*0x08 */
+	U8          Reserved4;                  /*0x09 */
+	U8          SASSlumberTimeout;          /*0x0A */
+	U8          Reserved5;                  /*0x0B */
+} MPI2_SAS_IO_UNIT5_PHY_PM_SETTINGS,
+	*PTR_MPI2_SAS_IO_UNIT5_PHY_PM_SETTINGS,
+	Mpi2SasIOUnit5PhyPmSettings_t,
+	*pMpi2SasIOUnit5PhyPmSettings_t;
+
+/*defines for ControlFlags field */
+#define MPI2_SASIOUNIT5_CONTROL_SAS_SLUMBER_ENABLE      (0x08)
+#define MPI2_SASIOUNIT5_CONTROL_SAS_PARTIAL_ENABLE      (0x04)
+#define MPI2_SASIOUNIT5_CONTROL_SATA_SLUMBER_ENABLE     (0x02)
+#define MPI2_SASIOUNIT5_CONTROL_SATA_PARTIAL_ENABLE     (0x01)
+
+/*defines for PortWidthModeGroup field */
+#define MPI2_SASIOUNIT5_PWMG_DISABLE                    (0xFF)
+
+/*defines for InactivityTimerExponent field */
+#define MPI2_SASIOUNIT5_ITE_MASK_SAS_SLUMBER            (0x7000)
+#define MPI2_SASIOUNIT5_ITE_SHIFT_SAS_SLUMBER           (12)
+#define MPI2_SASIOUNIT5_ITE_MASK_SAS_PARTIAL            (0x0700)
+#define MPI2_SASIOUNIT5_ITE_SHIFT_SAS_PARTIAL           (8)
+#define MPI2_SASIOUNIT5_ITE_MASK_SATA_SLUMBER           (0x0070)
+#define MPI2_SASIOUNIT5_ITE_SHIFT_SATA_SLUMBER          (4)
+#define MPI2_SASIOUNIT5_ITE_MASK_SATA_PARTIAL           (0x0007)
+#define MPI2_SASIOUNIT5_ITE_SHIFT_SATA_PARTIAL          (0)
+
+#define MPI2_SASIOUNIT5_ITE_TEN_SECONDS                 (7)
+#define MPI2_SASIOUNIT5_ITE_ONE_SECOND                  (6)
+#define MPI2_SASIOUNIT5_ITE_HUNDRED_MILLISECONDS        (5)
+#define MPI2_SASIOUNIT5_ITE_TEN_MILLISECONDS            (4)
+#define MPI2_SASIOUNIT5_ITE_ONE_MILLISECOND             (3)
+#define MPI2_SASIOUNIT5_ITE_HUNDRED_MICROSECONDS        (2)
+#define MPI2_SASIOUNIT5_ITE_TEN_MICROSECONDS            (1)
+#define MPI2_SASIOUNIT5_ITE_ONE_MICROSECOND             (0)
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhys at runtime.
+ */
+#ifndef MPI2_SAS_IOUNIT5_PHY_MAX
+#define MPI2_SAS_IOUNIT5_PHY_MAX        (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_5 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header;   /*0x00 */
+	U8                                  NumPhys;  /*0x08 */
+	U8                                  Reserved1;/*0x09 */
+	U16                                 Reserved2;/*0x0A */
+	U32                                 Reserved3;/*0x0C */
+	MPI2_SAS_IO_UNIT5_PHY_PM_SETTINGS
+	SASPhyPowerManagementSettings[MPI2_SAS_IOUNIT5_PHY_MAX];/*0x10 */
+} MPI2_CONFIG_PAGE_SASIOUNIT_5,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT_5,
+	Mpi2SasIOUnitPage5_t, *pMpi2SasIOUnitPage5_t;
+
+#define MPI2_SASIOUNITPAGE5_PAGEVERSION     (0x01)
+
+
+/*SAS IO Unit Page 6 */
+
+typedef struct _MPI2_SAS_IO_UNIT6_PORT_WIDTH_MOD_GROUP_STATUS {
+	U8          CurrentStatus;              /*0x00 */
+	U8          CurrentModulation;          /*0x01 */
+	U8          CurrentUtilization;         /*0x02 */
+	U8          Reserved1;                  /*0x03 */
+	U32         Reserved2;                  /*0x04 */
+} MPI2_SAS_IO_UNIT6_PORT_WIDTH_MOD_GROUP_STATUS,
+	*PTR_MPI2_SAS_IO_UNIT6_PORT_WIDTH_MOD_GROUP_STATUS,
+	Mpi2SasIOUnit6PortWidthModGroupStatus_t,
+	*pMpi2SasIOUnit6PortWidthModGroupStatus_t;
+
+/*defines for CurrentStatus field */
+#define MPI2_SASIOUNIT6_STATUS_UNAVAILABLE                      (0x00)
+#define MPI2_SASIOUNIT6_STATUS_UNCONFIGURED                     (0x01)
+#define MPI2_SASIOUNIT6_STATUS_INVALID_CONFIG                   (0x02)
+#define MPI2_SASIOUNIT6_STATUS_LINK_DOWN                        (0x03)
+#define MPI2_SASIOUNIT6_STATUS_OBSERVATION_ONLY                 (0x04)
+#define MPI2_SASIOUNIT6_STATUS_INACTIVE                         (0x05)
+#define MPI2_SASIOUNIT6_STATUS_ACTIVE_IOUNIT                    (0x06)
+#define MPI2_SASIOUNIT6_STATUS_ACTIVE_HOST                      (0x07)
+
+/*defines for CurrentModulation field */
+#define MPI2_SASIOUNIT6_MODULATION_25_PERCENT                   (0x00)
+#define MPI2_SASIOUNIT6_MODULATION_50_PERCENT                   (0x01)
+#define MPI2_SASIOUNIT6_MODULATION_75_PERCENT                   (0x02)
+#define MPI2_SASIOUNIT6_MODULATION_100_PERCENT                  (0x03)
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumGroups at runtime.
+ */
+#ifndef MPI2_SAS_IOUNIT6_GROUP_MAX
+#define MPI2_SAS_IOUNIT6_GROUP_MAX      (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_6 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header;                 /*0x00 */
+	U32                                 Reserved1;              /*0x08 */
+	U32                                 Reserved2;              /*0x0C */
+	U8                                  NumGroups;              /*0x10 */
+	U8                                  Reserved3;              /*0x11 */
+	U16                                 Reserved4;              /*0x12 */
+	MPI2_SAS_IO_UNIT6_PORT_WIDTH_MOD_GROUP_STATUS
+	PortWidthModulationGroupStatus[MPI2_SAS_IOUNIT6_GROUP_MAX]; /*0x14 */
+} MPI2_CONFIG_PAGE_SASIOUNIT_6,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT_6,
+	Mpi2SasIOUnitPage6_t, *pMpi2SasIOUnitPage6_t;
+
+#define MPI2_SASIOUNITPAGE6_PAGEVERSION     (0x00)
+
+
+/*SAS IO Unit Page 7 */
+
+typedef struct _MPI2_SAS_IO_UNIT7_PORT_WIDTH_MOD_GROUP_SETTINGS {
+	U8          Flags;                      /*0x00 */
+	U8          Reserved1;                  /*0x01 */
+	U16         Reserved2;                  /*0x02 */
+	U8          Threshold75Pct;             /*0x04 */
+	U8          Threshold50Pct;             /*0x05 */
+	U8          Threshold25Pct;             /*0x06 */
+	U8          Reserved3;                  /*0x07 */
+} MPI2_SAS_IO_UNIT7_PORT_WIDTH_MOD_GROUP_SETTINGS,
+	*PTR_MPI2_SAS_IO_UNIT7_PORT_WIDTH_MOD_GROUP_SETTINGS,
+	Mpi2SasIOUnit7PortWidthModGroupSettings_t,
+	*pMpi2SasIOUnit7PortWidthModGroupSettings_t;
+
+/*defines for Flags field */
+#define MPI2_SASIOUNIT7_FLAGS_ENABLE_PORT_WIDTH_MODULATION  (0x01)
+
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumGroups at runtime.
+ */
+#ifndef MPI2_SAS_IOUNIT7_GROUP_MAX
+#define MPI2_SAS_IOUNIT7_GROUP_MAX      (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_7 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER Header;             /*0x00 */
+	U8                               SamplingInterval;   /*0x08 */
+	U8                               WindowLength;       /*0x09 */
+	U16                              Reserved1;          /*0x0A */
+	U32                              Reserved2;          /*0x0C */
+	U32                              Reserved3;          /*0x10 */
+	U8                               NumGroups;          /*0x14 */
+	U8                               Reserved4;          /*0x15 */
+	U16                              Reserved5;          /*0x16 */
+	MPI2_SAS_IO_UNIT7_PORT_WIDTH_MOD_GROUP_SETTINGS
+	PortWidthModulationGroupSettings[MPI2_SAS_IOUNIT7_GROUP_MAX];/*0x18 */
+} MPI2_CONFIG_PAGE_SASIOUNIT_7,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT_7,
+	Mpi2SasIOUnitPage7_t, *pMpi2SasIOUnitPage7_t;
+
+#define MPI2_SASIOUNITPAGE7_PAGEVERSION     (0x00)
+
+
+/*SAS IO Unit Page 8 */
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_8 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                         /*0x00 */
+	U32
+		Reserved1;                      /*0x08 */
+	U32
+		PowerManagementCapabilities;    /*0x0C */
+	U8
+		TxRxSleepStatus;                /*0x10 */
+	U8
+		Reserved2;                      /*0x11 */
+	U16
+		Reserved3;                      /*0x12 */
+} MPI2_CONFIG_PAGE_SASIOUNIT_8,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT_8,
+	Mpi2SasIOUnitPage8_t, *pMpi2SasIOUnitPage8_t;
+
+#define MPI2_SASIOUNITPAGE8_PAGEVERSION     (0x00)
+
+/*defines for PowerManagementCapabilities field */
+#define MPI2_SASIOUNIT8_PM_HOST_PORT_WIDTH_MOD          (0x00001000)
+#define MPI2_SASIOUNIT8_PM_HOST_SAS_SLUMBER_MODE        (0x00000800)
+#define MPI2_SASIOUNIT8_PM_HOST_SAS_PARTIAL_MODE        (0x00000400)
+#define MPI2_SASIOUNIT8_PM_HOST_SATA_SLUMBER_MODE       (0x00000200)
+#define MPI2_SASIOUNIT8_PM_HOST_SATA_PARTIAL_MODE       (0x00000100)
+#define MPI2_SASIOUNIT8_PM_IOUNIT_PORT_WIDTH_MOD        (0x00000010)
+#define MPI2_SASIOUNIT8_PM_IOUNIT_SAS_SLUMBER_MODE      (0x00000008)
+#define MPI2_SASIOUNIT8_PM_IOUNIT_SAS_PARTIAL_MODE      (0x00000004)
+#define MPI2_SASIOUNIT8_PM_IOUNIT_SATA_SLUMBER_MODE     (0x00000002)
+#define MPI2_SASIOUNIT8_PM_IOUNIT_SATA_PARTIAL_MODE     (0x00000001)
+
+/*defines for TxRxSleepStatus field */
+#define MPI25_SASIOUNIT8_TXRXSLEEP_UNSUPPORTED          (0x00)
+#define MPI25_SASIOUNIT8_TXRXSLEEP_DISENGAGED           (0x01)
+#define MPI25_SASIOUNIT8_TXRXSLEEP_ACTIVE               (0x02)
+#define MPI25_SASIOUNIT8_TXRXSLEEP_SHUTDOWN             (0x03)
+
+
+
+/*SAS IO Unit Page 16 */
+
+typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT16 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                             /*0x00 */
+	U64
+		TimeStamp;                          /*0x08 */
+	U32
+		Reserved1;                          /*0x10 */
+	U32
+		Reserved2;                          /*0x14 */
+	U32
+		FastPathPendedRequests;             /*0x18 */
+	U32
+		FastPathUnPendedRequests;           /*0x1C */
+	U32
+		FastPathHostRequestStarts;          /*0x20 */
+	U32
+		FastPathFirmwareRequestStarts;      /*0x24 */
+	U32
+		FastPathHostCompletions;            /*0x28 */
+	U32
+		FastPathFirmwareCompletions;        /*0x2C */
+	U32
+		NonFastPathRequestStarts;           /*0x30 */
+	U32
+		NonFastPathHostCompletions;         /*0x30 */
+} MPI2_CONFIG_PAGE_SASIOUNIT16,
+	*PTR_MPI2_CONFIG_PAGE_SASIOUNIT16,
+	Mpi2SasIOUnitPage16_t, *pMpi2SasIOUnitPage16_t;
+
+#define MPI2_SASIOUNITPAGE16_PAGEVERSION    (0x00)
+
+
+/****************************************************************************
+*  SAS Expander Config Pages
+****************************************************************************/
+
+/*SAS Expander Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_EXPANDER_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U8
+		PhysicalPort;               /*0x08 */
+	U8
+		ReportGenLength;            /*0x09 */
+	U16
+		EnclosureHandle;            /*0x0A */
+	U64
+		SASAddress;                 /*0x0C */
+	U32
+		DiscoveryStatus;            /*0x14 */
+	U16
+		DevHandle;                  /*0x18 */
+	U16
+		ParentDevHandle;            /*0x1A */
+	U16
+		ExpanderChangeCount;        /*0x1C */
+	U16
+		ExpanderRouteIndexes;       /*0x1E */
+	U8
+		NumPhys;                    /*0x20 */
+	U8
+		SASLevel;                   /*0x21 */
+	U16
+		Flags;                      /*0x22 */
+	U16
+		STPBusInactivityTimeLimit;  /*0x24 */
+	U16
+		STPMaxConnectTimeLimit;     /*0x26 */
+	U16
+		STP_SMP_NexusLossTime;      /*0x28 */
+	U16
+		MaxNumRoutedSasAddresses;   /*0x2A */
+	U64
+		ActiveZoneManagerSASAddress;/*0x2C */
+	U16
+		ZoneLockInactivityLimit;    /*0x34 */
+	U16
+		Reserved1;                  /*0x36 */
+	U8
+		TimeToReducedFunc;          /*0x38 */
+	U8
+		InitialTimeToReducedFunc;   /*0x39 */
+	U8
+		MaxReducedFuncTime;         /*0x3A */
+	U8
+		Reserved2;                  /*0x3B */
+} MPI2_CONFIG_PAGE_EXPANDER_0,
+	*PTR_MPI2_CONFIG_PAGE_EXPANDER_0,
+	Mpi2ExpanderPage0_t, *pMpi2ExpanderPage0_t;
+
+#define MPI2_SASEXPANDER0_PAGEVERSION       (0x06)
+
+/*values for SAS Expander Page 0 DiscoveryStatus field */
+#define MPI2_SAS_EXPANDER0_DS_MAX_ENCLOSURES_EXCEED         (0x80000000)
+#define MPI2_SAS_EXPANDER0_DS_MAX_EXPANDERS_EXCEED          (0x40000000)
+#define MPI2_SAS_EXPANDER0_DS_MAX_DEVICES_EXCEED            (0x20000000)
+#define MPI2_SAS_EXPANDER0_DS_MAX_TOPO_PHYS_EXCEED          (0x10000000)
+#define MPI2_SAS_EXPANDER0_DS_DOWNSTREAM_INITIATOR          (0x08000000)
+#define MPI2_SAS_EXPANDER0_DS_MULTI_SUBTRACTIVE_SUBTRACTIVE (0x00008000)
+#define MPI2_SAS_EXPANDER0_DS_EXP_MULTI_SUBTRACTIVE         (0x00004000)
+#define MPI2_SAS_EXPANDER0_DS_MULTI_PORT_DOMAIN             (0x00002000)
+#define MPI2_SAS_EXPANDER0_DS_TABLE_TO_SUBTRACTIVE_LINK     (0x00001000)
+#define MPI2_SAS_EXPANDER0_DS_UNSUPPORTED_DEVICE            (0x00000800)
+#define MPI2_SAS_EXPANDER0_DS_TABLE_LINK                    (0x00000400)
+#define MPI2_SAS_EXPANDER0_DS_SUBTRACTIVE_LINK              (0x00000200)
+#define MPI2_SAS_EXPANDER0_DS_SMP_CRC_ERROR                 (0x00000100)
+#define MPI2_SAS_EXPANDER0_DS_SMP_FUNCTION_FAILED           (0x00000080)
+#define MPI2_SAS_EXPANDER0_DS_INDEX_NOT_EXIST               (0x00000040)
+#define MPI2_SAS_EXPANDER0_DS_OUT_ROUTE_ENTRIES             (0x00000020)
+#define MPI2_SAS_EXPANDER0_DS_SMP_TIMEOUT                   (0x00000010)
+#define MPI2_SAS_EXPANDER0_DS_MULTIPLE_PORTS                (0x00000004)
+#define MPI2_SAS_EXPANDER0_DS_UNADDRESSABLE_DEVICE          (0x00000002)
+#define MPI2_SAS_EXPANDER0_DS_LOOP_DETECTED                 (0x00000001)
+
+/*values for SAS Expander Page 0 Flags field */
+#define MPI2_SAS_EXPANDER0_FLAGS_REDUCED_FUNCTIONALITY      (0x2000)
+#define MPI2_SAS_EXPANDER0_FLAGS_ZONE_LOCKED                (0x1000)
+#define MPI2_SAS_EXPANDER0_FLAGS_SUPPORTED_PHYSICAL_PRES    (0x0800)
+#define MPI2_SAS_EXPANDER0_FLAGS_ASSERTED_PHYSICAL_PRES     (0x0400)
+#define MPI2_SAS_EXPANDER0_FLAGS_ZONING_SUPPORT             (0x0200)
+#define MPI2_SAS_EXPANDER0_FLAGS_ENABLED_ZONING             (0x0100)
+#define MPI2_SAS_EXPANDER0_FLAGS_TABLE_TO_TABLE_SUPPORT     (0x0080)
+#define MPI2_SAS_EXPANDER0_FLAGS_CONNECTOR_END_DEVICE       (0x0010)
+#define MPI2_SAS_EXPANDER0_FLAGS_OTHERS_CONFIG              (0x0004)
+#define MPI2_SAS_EXPANDER0_FLAGS_CONFIG_IN_PROGRESS         (0x0002)
+#define MPI2_SAS_EXPANDER0_FLAGS_ROUTE_TABLE_CONFIG         (0x0001)
+
+
+/*SAS Expander Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_EXPANDER_1 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U8
+		PhysicalPort;               /*0x08 */
+	U8
+		Reserved1;                  /*0x09 */
+	U16
+		Reserved2;                  /*0x0A */
+	U8
+		NumPhys;                    /*0x0C */
+	U8
+		Phy;                        /*0x0D */
+	U16
+		NumTableEntriesProgrammed;  /*0x0E */
+	U8
+		ProgrammedLinkRate;         /*0x10 */
+	U8
+		HwLinkRate;                 /*0x11 */
+	U16
+		AttachedDevHandle;          /*0x12 */
+	U32
+		PhyInfo;                    /*0x14 */
+	U32
+		AttachedDeviceInfo;         /*0x18 */
+	U16
+		ExpanderDevHandle;          /*0x1C */
+	U8
+		ChangeCount;                /*0x1E */
+	U8
+		NegotiatedLinkRate;         /*0x1F */
+	U8
+		PhyIdentifier;              /*0x20 */
+	U8
+		AttachedPhyIdentifier;      /*0x21 */
+	U8
+		Reserved3;                  /*0x22 */
+	U8
+		DiscoveryInfo;              /*0x23 */
+	U32
+		AttachedPhyInfo;            /*0x24 */
+	U8
+		ZoneGroup;                  /*0x28 */
+	U8
+		SelfConfigStatus;           /*0x29 */
+	U16
+		Reserved4;                  /*0x2A */
+} MPI2_CONFIG_PAGE_EXPANDER_1,
+	*PTR_MPI2_CONFIG_PAGE_EXPANDER_1,
+	Mpi2ExpanderPage1_t, *pMpi2ExpanderPage1_t;
+
+#define MPI2_SASEXPANDER1_PAGEVERSION       (0x02)
+
+/*use MPI2_SAS_PRATE_ defines for the ProgrammedLinkRate field */
+
+/*use MPI2_SAS_HWRATE_ defines for the HwLinkRate field */
+
+/*use MPI2_SAS_PHYINFO_ for the PhyInfo field */
+
+/*see mpi2_sas.h for the MPI2_SAS_DEVICE_INFO_ defines
+ *used for the AttachedDeviceInfo field */
+
+/*use MPI2_SAS_NEG_LINK_RATE_ defines for the NegotiatedLinkRate field */
+
+/*values for SAS Expander Page 1 DiscoveryInfo field */
+#define MPI2_SAS_EXPANDER1_DISCINFO_BAD_PHY_DISABLED    (0x04)
+#define MPI2_SAS_EXPANDER1_DISCINFO_LINK_STATUS_CHANGE  (0x02)
+#define MPI2_SAS_EXPANDER1_DISCINFO_NO_ROUTING_ENTRIES  (0x01)
+
+/*use MPI2_SAS_APHYINFO_ defines for AttachedPhyInfo field */
+
+
+/****************************************************************************
+*  SAS Device Config Pages
+****************************************************************************/
+
+/*SAS Device Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                 /*0x00 */
+	U16
+		Slot;                   /*0x08 */
+	U16
+		EnclosureHandle;        /*0x0A */
+	U64
+		SASAddress;             /*0x0C */
+	U16
+		ParentDevHandle;        /*0x14 */
+	U8
+		PhyNum;                 /*0x16 */
+	U8
+		AccessStatus;           /*0x17 */
+	U16
+		DevHandle;              /*0x18 */
+	U8
+		AttachedPhyIdentifier;  /*0x1A */
+	U8
+		ZoneGroup;              /*0x1B */
+	U32
+		DeviceInfo;             /*0x1C */
+	U16
+		Flags;                  /*0x20 */
+	U8
+		PhysicalPort;           /*0x22 */
+	U8
+		MaxPortConnections;     /*0x23 */
+	U64
+		DeviceName;             /*0x24 */
+	U8
+		PortGroups;             /*0x2C */
+	U8
+		DmaGroup;               /*0x2D */
+	U8
+		ControlGroup;           /*0x2E */
+	U8
+		Reserved1;              /*0x2F */
+	U32
+		Reserved2;              /*0x30 */
+	U32
+		Reserved3;              /*0x34 */
+} MPI2_CONFIG_PAGE_SAS_DEV_0,
+	*PTR_MPI2_CONFIG_PAGE_SAS_DEV_0,
+	Mpi2SasDevicePage0_t,
+	*pMpi2SasDevicePage0_t;
+
+#define MPI2_SASDEVICE0_PAGEVERSION         (0x08)
+
+/*values for SAS Device Page 0 AccessStatus field */
+#define MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS                  (0x00)
+#define MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED           (0x01)
+#define MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED     (0x02)
+#define MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT  (0x03)
+#define MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION  (0x04)
+#define MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE      (0x05)
+#define MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE  (0x06)
+#define MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED             (0x07)
+/*specific values for SATA Init failures */
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN                (0x10)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT   (0x11)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG                   (0x12)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION         (0x13)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER            (0x14)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN                 (0x15)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN                (0x16)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN                (0x17)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION       (0x18)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE        (0x19)
+#define MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX                    (0x1F)
+
+/*see mpi2_sas.h for values for SAS Device Page 0 DeviceInfo values */
+
+/*values for SAS Device Page 0 Flags field */
+#define MPI2_SAS_DEVICE0_FLAGS_UNAUTHORIZED_DEVICE          (0x8000)
+#define MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH           (0x4000)
+#define MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE           (0x2000)
+#define MPI2_SAS_DEVICE0_FLAGS_SLUMBER_PM_CAPABLE           (0x1000)
+#define MPI2_SAS_DEVICE0_FLAGS_PARTIAL_PM_CAPABLE           (0x0800)
+#define MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY     (0x0400)
+#define MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE             (0x0200)
+#define MPI2_SAS_DEVICE0_FLAGS_UNSUPPORTED_DEVICE           (0x0100)
+#define MPI2_SAS_DEVICE0_FLAGS_SATA_48BIT_LBA_SUPPORTED     (0x0080)
+#define MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED         (0x0040)
+#define MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED           (0x0020)
+#define MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED           (0x0010)
+#define MPI2_SAS_DEVICE0_FLAGS_PORT_SELECTOR_ATTACH         (0x0008)
+#define MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT               (0x0001)
+
+
+/*SAS Device Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_1 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                 /*0x00 */
+	U32
+		Reserved1;              /*0x08 */
+	U64
+		SASAddress;             /*0x0C */
+	U32
+		Reserved2;              /*0x14 */
+	U16
+		DevHandle;              /*0x18 */
+	U16
+		Reserved3;              /*0x1A */
+	U8
+		InitialRegDeviceFIS[20];/*0x1C */
+} MPI2_CONFIG_PAGE_SAS_DEV_1,
+	*PTR_MPI2_CONFIG_PAGE_SAS_DEV_1,
+	Mpi2SasDevicePage1_t,
+	*pMpi2SasDevicePage1_t;
+
+#define MPI2_SASDEVICE1_PAGEVERSION         (0x01)
+
+
+/****************************************************************************
+*  SAS PHY Config Pages
+****************************************************************************/
+
+/*SAS PHY Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_PHY_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                 /*0x00 */
+	U16
+		OwnerDevHandle;         /*0x08 */
+	U16
+		Reserved1;              /*0x0A */
+	U16
+		AttachedDevHandle;      /*0x0C */
+	U8
+		AttachedPhyIdentifier;  /*0x0E */
+	U8
+		Reserved2;              /*0x0F */
+	U32
+		AttachedPhyInfo;        /*0x10 */
+	U8
+		ProgrammedLinkRate;     /*0x14 */
+	U8
+		HwLinkRate;             /*0x15 */
+	U8
+		ChangeCount;            /*0x16 */
+	U8
+		Flags;                  /*0x17 */
+	U32
+		PhyInfo;                /*0x18 */
+	U8
+		NegotiatedLinkRate;     /*0x1C */
+	U8
+		Reserved3;              /*0x1D */
+	U16
+		Reserved4;              /*0x1E */
+} MPI2_CONFIG_PAGE_SAS_PHY_0,
+	*PTR_MPI2_CONFIG_PAGE_SAS_PHY_0,
+	Mpi2SasPhyPage0_t, *pMpi2SasPhyPage0_t;
+
+#define MPI2_SASPHY0_PAGEVERSION            (0x03)
+
+/*use MPI2_SAS_APHYINFO_ defines for AttachedPhyInfo field */
+
+/*use MPI2_SAS_PRATE_ defines for the ProgrammedLinkRate field */
+
+/*use MPI2_SAS_HWRATE_ defines for the HwLinkRate field */
+
+/*values for SAS PHY Page 0 Flags field */
+#define MPI2_SAS_PHY0_FLAGS_SGPIO_DIRECT_ATTACH_ENC             (0x01)
+
+/*use MPI2_SAS_PHYINFO_ for the PhyInfo field */
+
+/*use MPI2_SAS_NEG_LINK_RATE_ defines for the NegotiatedLinkRate field */
+
+
+/*SAS PHY Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_PHY_1 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U32
+		Reserved1;                  /*0x08 */
+	U32
+		InvalidDwordCount;          /*0x0C */
+	U32
+		RunningDisparityErrorCount; /*0x10 */
+	U32
+		LossDwordSynchCount;        /*0x14 */
+	U32
+		PhyResetProblemCount;       /*0x18 */
+} MPI2_CONFIG_PAGE_SAS_PHY_1,
+	*PTR_MPI2_CONFIG_PAGE_SAS_PHY_1,
+	Mpi2SasPhyPage1_t, *pMpi2SasPhyPage1_t;
+
+#define MPI2_SASPHY1_PAGEVERSION            (0x01)
+
+
+/*SAS PHY Page 2 */
+
+typedef struct _MPI2_SASPHY2_PHY_EVENT {
+	U8          PhyEventCode;       /*0x00 */
+	U8          Reserved1;          /*0x01 */
+	U16         Reserved2;          /*0x02 */
+	U32         PhyEventInfo;       /*0x04 */
+} MPI2_SASPHY2_PHY_EVENT, *PTR_MPI2_SASPHY2_PHY_EVENT,
+	Mpi2SasPhy2PhyEvent_t, *pMpi2SasPhy2PhyEvent_t;
+
+/*use MPI2_SASPHY3_EVENT_CODE_ for the PhyEventCode field */
+
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhyEvents at runtime.
+ */
+#ifndef MPI2_SASPHY2_PHY_EVENT_MAX
+#define MPI2_SASPHY2_PHY_EVENT_MAX      (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_PHY_2 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U32
+		Reserved1;                  /*0x08 */
+	U8
+		NumPhyEvents;               /*0x0C */
+	U8
+		Reserved2;                  /*0x0D */
+	U16
+		Reserved3;                  /*0x0E */
+	MPI2_SASPHY2_PHY_EVENT
+		PhyEvent[MPI2_SASPHY2_PHY_EVENT_MAX]; /*0x10 */
+} MPI2_CONFIG_PAGE_SAS_PHY_2,
+	*PTR_MPI2_CONFIG_PAGE_SAS_PHY_2,
+	Mpi2SasPhyPage2_t,
+	*pMpi2SasPhyPage2_t;
+
+#define MPI2_SASPHY2_PAGEVERSION            (0x00)
+
+
+/*SAS PHY Page 3 */
+
+typedef struct _MPI2_SASPHY3_PHY_EVENT_CONFIG {
+	U8          PhyEventCode;       /*0x00 */
+	U8          Reserved1;          /*0x01 */
+	U16         Reserved2;          /*0x02 */
+	U8          CounterType;        /*0x04 */
+	U8          ThresholdWindow;    /*0x05 */
+	U8          TimeUnits;          /*0x06 */
+	U8          Reserved3;          /*0x07 */
+	U32         EventThreshold;     /*0x08 */
+	U16         ThresholdFlags;     /*0x0C */
+	U16         Reserved4;          /*0x0E */
+} MPI2_SASPHY3_PHY_EVENT_CONFIG,
+	*PTR_MPI2_SASPHY3_PHY_EVENT_CONFIG,
+	Mpi2SasPhy3PhyEventConfig_t,
+	*pMpi2SasPhy3PhyEventConfig_t;
+
+/*values for PhyEventCode field */
+#define MPI2_SASPHY3_EVENT_CODE_NO_EVENT                    (0x00)
+#define MPI2_SASPHY3_EVENT_CODE_INVALID_DWORD               (0x01)
+#define MPI2_SASPHY3_EVENT_CODE_RUNNING_DISPARITY_ERROR     (0x02)
+#define MPI2_SASPHY3_EVENT_CODE_LOSS_DWORD_SYNC             (0x03)
+#define MPI2_SASPHY3_EVENT_CODE_PHY_RESET_PROBLEM           (0x04)
+#define MPI2_SASPHY3_EVENT_CODE_ELASTICITY_BUF_OVERFLOW     (0x05)
+#define MPI2_SASPHY3_EVENT_CODE_RX_ERROR                    (0x06)
+#define MPI2_SASPHY3_EVENT_CODE_RX_ADDR_FRAME_ERROR         (0x20)
+#define MPI2_SASPHY3_EVENT_CODE_TX_AC_OPEN_REJECT           (0x21)
+#define MPI2_SASPHY3_EVENT_CODE_RX_AC_OPEN_REJECT           (0x22)
+#define MPI2_SASPHY3_EVENT_CODE_TX_RC_OPEN_REJECT           (0x23)
+#define MPI2_SASPHY3_EVENT_CODE_RX_RC_OPEN_REJECT           (0x24)
+#define MPI2_SASPHY3_EVENT_CODE_RX_AIP_PARTIAL_WAITING_ON   (0x25)
+#define MPI2_SASPHY3_EVENT_CODE_RX_AIP_CONNECT_WAITING_ON   (0x26)
+#define MPI2_SASPHY3_EVENT_CODE_TX_BREAK                    (0x27)
+#define MPI2_SASPHY3_EVENT_CODE_RX_BREAK                    (0x28)
+#define MPI2_SASPHY3_EVENT_CODE_BREAK_TIMEOUT               (0x29)
+#define MPI2_SASPHY3_EVENT_CODE_CONNECTION                  (0x2A)
+#define MPI2_SASPHY3_EVENT_CODE_PEAKTX_PATHWAY_BLOCKED      (0x2B)
+#define MPI2_SASPHY3_EVENT_CODE_PEAKTX_ARB_WAIT_TIME        (0x2C)
+#define MPI2_SASPHY3_EVENT_CODE_PEAK_ARB_WAIT_TIME          (0x2D)
+#define MPI2_SASPHY3_EVENT_CODE_PEAK_CONNECT_TIME           (0x2E)
+#define MPI2_SASPHY3_EVENT_CODE_TX_SSP_FRAMES               (0x40)
+#define MPI2_SASPHY3_EVENT_CODE_RX_SSP_FRAMES               (0x41)
+#define MPI2_SASPHY3_EVENT_CODE_TX_SSP_ERROR_FRAMES         (0x42)
+#define MPI2_SASPHY3_EVENT_CODE_RX_SSP_ERROR_FRAMES         (0x43)
+#define MPI2_SASPHY3_EVENT_CODE_TX_CREDIT_BLOCKED           (0x44)
+#define MPI2_SASPHY3_EVENT_CODE_RX_CREDIT_BLOCKED           (0x45)
+#define MPI2_SASPHY3_EVENT_CODE_TX_SATA_FRAMES              (0x50)
+#define MPI2_SASPHY3_EVENT_CODE_RX_SATA_FRAMES              (0x51)
+#define MPI2_SASPHY3_EVENT_CODE_SATA_OVERFLOW               (0x52)
+#define MPI2_SASPHY3_EVENT_CODE_TX_SMP_FRAMES               (0x60)
+#define MPI2_SASPHY3_EVENT_CODE_RX_SMP_FRAMES               (0x61)
+#define MPI2_SASPHY3_EVENT_CODE_RX_SMP_ERROR_FRAMES         (0x63)
+#define MPI2_SASPHY3_EVENT_CODE_HOTPLUG_TIMEOUT             (0xD0)
+#define MPI2_SASPHY3_EVENT_CODE_MISALIGNED_MUX_PRIMITIVE    (0xD1)
+#define MPI2_SASPHY3_EVENT_CODE_RX_AIP                      (0xD2)
+
+/*values for the CounterType field */
+#define MPI2_SASPHY3_COUNTER_TYPE_WRAPPING                  (0x00)
+#define MPI2_SASPHY3_COUNTER_TYPE_SATURATING                (0x01)
+#define MPI2_SASPHY3_COUNTER_TYPE_PEAK_VALUE                (0x02)
+
+/*values for the TimeUnits field */
+#define MPI2_SASPHY3_TIME_UNITS_10_MICROSECONDS             (0x00)
+#define MPI2_SASPHY3_TIME_UNITS_100_MICROSECONDS            (0x01)
+#define MPI2_SASPHY3_TIME_UNITS_1_MILLISECOND               (0x02)
+#define MPI2_SASPHY3_TIME_UNITS_10_MILLISECONDS             (0x03)
+
+/*values for the ThresholdFlags field */
+#define MPI2_SASPHY3_TFLAGS_PHY_RESET                       (0x0002)
+#define MPI2_SASPHY3_TFLAGS_EVENT_NOTIFY                    (0x0001)
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumPhyEvents at runtime.
+ */
+#ifndef MPI2_SASPHY3_PHY_EVENT_MAX
+#define MPI2_SASPHY3_PHY_EVENT_MAX      (1)
+#endif
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_PHY_3 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U32
+		Reserved1;                  /*0x08 */
+	U8
+		NumPhyEvents;               /*0x0C */
+	U8
+		Reserved2;                  /*0x0D */
+	U16
+		Reserved3;                  /*0x0E */
+	MPI2_SASPHY3_PHY_EVENT_CONFIG
+		PhyEventConfig[MPI2_SASPHY3_PHY_EVENT_MAX]; /*0x10 */
+} MPI2_CONFIG_PAGE_SAS_PHY_3,
+	*PTR_MPI2_CONFIG_PAGE_SAS_PHY_3,
+	Mpi2SasPhyPage3_t, *pMpi2SasPhyPage3_t;
+
+#define MPI2_SASPHY3_PAGEVERSION            (0x00)
+
+
+/*SAS PHY Page 4 */
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_PHY_4 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U16
+		Reserved1;                  /*0x08 */
+	U8
+		Reserved2;                  /*0x0A */
+	U8
+		Flags;                      /*0x0B */
+	U8
+		InitialFrame[28];           /*0x0C */
+} MPI2_CONFIG_PAGE_SAS_PHY_4,
+	*PTR_MPI2_CONFIG_PAGE_SAS_PHY_4,
+	Mpi2SasPhyPage4_t, *pMpi2SasPhyPage4_t;
+
+#define MPI2_SASPHY4_PAGEVERSION            (0x00)
+
+/*values for the Flags field */
+#define MPI2_SASPHY4_FLAGS_FRAME_VALID        (0x02)
+#define MPI2_SASPHY4_FLAGS_SATA_FRAME         (0x01)
+
+
+
+
+/****************************************************************************
+*  SAS Port Config Pages
+****************************************************************************/
+
+/*SAS Port Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_PORT_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U8
+		PortNumber;                 /*0x08 */
+	U8
+		PhysicalPort;               /*0x09 */
+	U8
+		PortWidth;                  /*0x0A */
+	U8
+		PhysicalPortWidth;          /*0x0B */
+	U8
+		ZoneGroup;                  /*0x0C */
+	U8
+		Reserved1;                  /*0x0D */
+	U16
+		Reserved2;                  /*0x0E */
+	U64
+		SASAddress;                 /*0x10 */
+	U32
+		DeviceInfo;                 /*0x18 */
+	U32
+		Reserved3;                  /*0x1C */
+	U32
+		Reserved4;                  /*0x20 */
+} MPI2_CONFIG_PAGE_SAS_PORT_0,
+	*PTR_MPI2_CONFIG_PAGE_SAS_PORT_0,
+	Mpi2SasPortPage0_t, *pMpi2SasPortPage0_t;
+
+#define MPI2_SASPORT0_PAGEVERSION           (0x00)
+
+/*see mpi2_sas.h for values for SAS Port Page 0 DeviceInfo values */
+
+
+/****************************************************************************
+*  SAS Enclosure Config Pages
+****************************************************************************/
+
+/*SAS Enclosure Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                     /*0x00 */
+	U32
+		Reserved1;                  /*0x08 */
+	U64
+		EnclosureLogicalID;         /*0x0C */
+	U16
+		Flags;                      /*0x14 */
+	U16
+		EnclosureHandle;            /*0x16 */
+	U16
+		NumSlots;                   /*0x18 */
+	U16
+		StartSlot;                  /*0x1A */
+	U16
+		Reserved2;                  /*0x1C */
+	U16
+		SEPDevHandle;               /*0x1E */
+	U32
+		Reserved3;                  /*0x20 */
+	U32
+		Reserved4;                  /*0x24 */
+} MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0,
+	*PTR_MPI2_CONFIG_PAGE_SAS_ENCLOSURE_0,
+	Mpi2SasEnclosurePage0_t, *pMpi2SasEnclosurePage0_t;
+
+#define MPI2_SASENCLOSURE0_PAGEVERSION      (0x03)
+
+/*values for SAS Enclosure Page 0 Flags field */
+#define MPI2_SAS_ENCLS0_FLAGS_MNG_MASK              (0x000F)
+#define MPI2_SAS_ENCLS0_FLAGS_MNG_UNKNOWN           (0x0000)
+#define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_SES           (0x0001)
+#define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_SGPIO         (0x0002)
+#define MPI2_SAS_ENCLS0_FLAGS_MNG_EXP_SGPIO         (0x0003)
+#define MPI2_SAS_ENCLS0_FLAGS_MNG_SES_ENCLOSURE     (0x0004)
+#define MPI2_SAS_ENCLS0_FLAGS_MNG_IOC_GPIO          (0x0005)
+
+
+/****************************************************************************
+*  Log Config Page
+****************************************************************************/
+
+/*Log Page 0 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumLogEntries at runtime.
+ */
+#ifndef MPI2_LOG_0_NUM_LOG_ENTRIES
+#define MPI2_LOG_0_NUM_LOG_ENTRIES          (1)
+#endif
+
+#define MPI2_LOG_0_LOG_DATA_LENGTH          (0x1C)
+
+typedef struct _MPI2_LOG_0_ENTRY {
+	U64         TimeStamp;                      /*0x00 */
+	U32         Reserved1;                      /*0x08 */
+	U16         LogSequence;                    /*0x0C */
+	U16         LogEntryQualifier;              /*0x0E */
+	U8          VP_ID;                          /*0x10 */
+	U8          VF_ID;                          /*0x11 */
+	U16         Reserved2;                      /*0x12 */
+	U8
+		LogData[MPI2_LOG_0_LOG_DATA_LENGTH];/*0x14 */
+} MPI2_LOG_0_ENTRY, *PTR_MPI2_LOG_0_ENTRY,
+	Mpi2Log0Entry_t, *pMpi2Log0Entry_t;
+
+/*values for Log Page 0 LogEntry LogEntryQualifier field */
+#define MPI2_LOG_0_ENTRY_QUAL_ENTRY_UNUSED          (0x0000)
+#define MPI2_LOG_0_ENTRY_QUAL_POWER_ON_RESET        (0x0001)
+#define MPI2_LOG_0_ENTRY_QUAL_TIMESTAMP_UPDATE      (0x0002)
+#define MPI2_LOG_0_ENTRY_QUAL_MIN_IMPLEMENT_SPEC    (0x8000)
+#define MPI2_LOG_0_ENTRY_QUAL_MAX_IMPLEMENT_SPEC    (0xFFFF)
+
+typedef struct _MPI2_CONFIG_PAGE_LOG_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header;       /*0x00 */
+	U32                                 Reserved1;    /*0x08 */
+	U32                                 Reserved2;    /*0x0C */
+	U16                                 NumLogEntries;/*0x10 */
+	U16                                 Reserved3;    /*0x12 */
+	MPI2_LOG_0_ENTRY
+		LogEntry[MPI2_LOG_0_NUM_LOG_ENTRIES]; /*0x14 */
+} MPI2_CONFIG_PAGE_LOG_0, *PTR_MPI2_CONFIG_PAGE_LOG_0,
+	Mpi2LogPage0_t, *pMpi2LogPage0_t;
+
+#define MPI2_LOG_0_PAGEVERSION              (0x02)
+
+
+/****************************************************************************
+*  RAID Config Page
+****************************************************************************/
+
+/*RAID Page 0 */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check the value returned for NumElements at runtime.
+ */
+#ifndef MPI2_RAIDCONFIG0_MAX_ELEMENTS
+#define MPI2_RAIDCONFIG0_MAX_ELEMENTS       (1)
+#endif
+
+typedef struct _MPI2_RAIDCONFIG0_CONFIG_ELEMENT {
+	U16                     ElementFlags;             /*0x00 */
+	U16                     VolDevHandle;             /*0x02 */
+	U8                      HotSparePool;             /*0x04 */
+	U8                      PhysDiskNum;              /*0x05 */
+	U16                     PhysDiskDevHandle;        /*0x06 */
+} MPI2_RAIDCONFIG0_CONFIG_ELEMENT,
+	*PTR_MPI2_RAIDCONFIG0_CONFIG_ELEMENT,
+	Mpi2RaidConfig0ConfigElement_t,
+	*pMpi2RaidConfig0ConfigElement_t;
+
+/*values for the ElementFlags field */
+#define MPI2_RAIDCONFIG0_EFLAGS_MASK_ELEMENT_TYPE       (0x000F)
+#define MPI2_RAIDCONFIG0_EFLAGS_VOLUME_ELEMENT          (0x0000)
+#define MPI2_RAIDCONFIG0_EFLAGS_VOL_PHYS_DISK_ELEMENT   (0x0001)
+#define MPI2_RAIDCONFIG0_EFLAGS_HOT_SPARE_ELEMENT       (0x0002)
+#define MPI2_RAIDCONFIG0_EFLAGS_OCE_ELEMENT             (0x0003)
+
+
+typedef struct _MPI2_CONFIG_PAGE_RAID_CONFIGURATION_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header;         /*0x00 */
+	U8                                  NumHotSpares;   /*0x08 */
+	U8                                  NumPhysDisks;   /*0x09 */
+	U8                                  NumVolumes;     /*0x0A */
+	U8                                  ConfigNum;      /*0x0B */
+	U32                                 Flags;          /*0x0C */
+	U8                                  ConfigGUID[24]; /*0x10 */
+	U32                                 Reserved1;      /*0x28 */
+	U8                                  NumElements;    /*0x2C */
+	U8                                  Reserved2;      /*0x2D */
+	U16                                 Reserved3;      /*0x2E */
+	MPI2_RAIDCONFIG0_CONFIG_ELEMENT
+		ConfigElement[MPI2_RAIDCONFIG0_MAX_ELEMENTS]; /*0x30 */
+} MPI2_CONFIG_PAGE_RAID_CONFIGURATION_0,
+	*PTR_MPI2_CONFIG_PAGE_RAID_CONFIGURATION_0,
+	Mpi2RaidConfigurationPage0_t,
+	*pMpi2RaidConfigurationPage0_t;
+
+#define MPI2_RAIDCONFIG0_PAGEVERSION            (0x00)
+
+/*values for RAID Configuration Page 0 Flags field */
+#define MPI2_RAIDCONFIG0_FLAG_FOREIGN_CONFIG        (0x00000001)
+
+
+/****************************************************************************
+*  Driver Persistent Mapping Config Pages
+****************************************************************************/
+
+/*Driver Persistent Mapping Page 0 */
+
+typedef struct _MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY {
+	U64	PhysicalIdentifier;         /*0x00 */
+	U16	MappingInformation;         /*0x08 */
+	U16	DeviceIndex;                /*0x0A */
+	U32	PhysicalBitsMapping;        /*0x0C */
+	U32	Reserved1;                  /*0x10 */
+} MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY,
+	*PTR_MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY,
+	Mpi2DriverMap0Entry_t, *pMpi2DriverMap0Entry_t;
+
+typedef struct _MPI2_CONFIG_PAGE_DRIVER_MAPPING_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header; /*0x00 */
+	MPI2_CONFIG_PAGE_DRIVER_MAP0_ENTRY  Entry;  /*0x08 */
+} MPI2_CONFIG_PAGE_DRIVER_MAPPING_0,
+	*PTR_MPI2_CONFIG_PAGE_DRIVER_MAPPING_0,
+	Mpi2DriverMappingPage0_t, *pMpi2DriverMappingPage0_t;
+
+#define MPI2_DRIVERMAPPING0_PAGEVERSION         (0x00)
+
+/*values for Driver Persistent Mapping Page 0 MappingInformation field */
+#define MPI2_DRVMAP0_MAPINFO_SLOT_MASK              (0x07F0)
+#define MPI2_DRVMAP0_MAPINFO_SLOT_SHIFT             (4)
+#define MPI2_DRVMAP0_MAPINFO_MISSING_MASK           (0x000F)
+
+
+/****************************************************************************
+*  Ethernet Config Pages
+****************************************************************************/
+
+/*Ethernet Page 0 */
+
+/*IP address (union of IPv4 and IPv6) */
+typedef union _MPI2_ETHERNET_IP_ADDR {
+	U32     IPv4Addr;
+	U32     IPv6Addr[4];
+} MPI2_ETHERNET_IP_ADDR, *PTR_MPI2_ETHERNET_IP_ADDR,
+	Mpi2EthernetIpAddr_t, *pMpi2EthernetIpAddr_t;
+
+#define MPI2_ETHERNET_HOST_NAME_LENGTH          (32)
+
+typedef struct _MPI2_CONFIG_PAGE_ETHERNET_0 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER    Header;          /*0x00 */
+	U8                                  NumInterfaces;   /*0x08 */
+	U8                                  Reserved0;       /*0x09 */
+	U16                                 Reserved1;       /*0x0A */
+	U32                                 Status;          /*0x0C */
+	U8                                  MediaState;      /*0x10 */
+	U8                                  Reserved2;       /*0x11 */
+	U16                                 Reserved3;       /*0x12 */
+	U8                                  MacAddress[6];   /*0x14 */
+	U8                                  Reserved4;       /*0x1A */
+	U8                                  Reserved5;       /*0x1B */
+	MPI2_ETHERNET_IP_ADDR               IpAddress;       /*0x1C */
+	MPI2_ETHERNET_IP_ADDR               SubnetMask;      /*0x2C */
+	MPI2_ETHERNET_IP_ADDR               GatewayIpAddress;/*0x3C */
+	MPI2_ETHERNET_IP_ADDR               DNS1IpAddress;   /*0x4C */
+	MPI2_ETHERNET_IP_ADDR               DNS2IpAddress;   /*0x5C */
+	MPI2_ETHERNET_IP_ADDR               DhcpIpAddress;   /*0x6C */
+	U8
+		HostName[MPI2_ETHERNET_HOST_NAME_LENGTH];/*0x7C */
+} MPI2_CONFIG_PAGE_ETHERNET_0,
+	*PTR_MPI2_CONFIG_PAGE_ETHERNET_0,
+	Mpi2EthernetPage0_t, *pMpi2EthernetPage0_t;
+
+#define MPI2_ETHERNETPAGE0_PAGEVERSION   (0x00)
+
+/*values for Ethernet Page 0 Status field */
+#define MPI2_ETHPG0_STATUS_IPV6_CAPABLE             (0x80000000)
+#define MPI2_ETHPG0_STATUS_IPV4_CAPABLE             (0x40000000)
+#define MPI2_ETHPG0_STATUS_CONSOLE_CONNECTED        (0x20000000)
+#define MPI2_ETHPG0_STATUS_DEFAULT_IF               (0x00000100)
+#define MPI2_ETHPG0_STATUS_FW_DWNLD_ENABLED         (0x00000080)
+#define MPI2_ETHPG0_STATUS_TELNET_ENABLED           (0x00000040)
+#define MPI2_ETHPG0_STATUS_SSH2_ENABLED             (0x00000020)
+#define MPI2_ETHPG0_STATUS_DHCP_CLIENT_ENABLED      (0x00000010)
+#define MPI2_ETHPG0_STATUS_IPV6_ENABLED             (0x00000008)
+#define MPI2_ETHPG0_STATUS_IPV4_ENABLED             (0x00000004)
+#define MPI2_ETHPG0_STATUS_IPV6_ADDRESSES           (0x00000002)
+#define MPI2_ETHPG0_STATUS_ETH_IF_ENABLED           (0x00000001)
+
+/*values for Ethernet Page 0 MediaState field */
+#define MPI2_ETHPG0_MS_DUPLEX_MASK                  (0x80)
+#define MPI2_ETHPG0_MS_HALF_DUPLEX                  (0x00)
+#define MPI2_ETHPG0_MS_FULL_DUPLEX                  (0x80)
+
+#define MPI2_ETHPG0_MS_CONNECT_SPEED_MASK           (0x07)
+#define MPI2_ETHPG0_MS_NOT_CONNECTED                (0x00)
+#define MPI2_ETHPG0_MS_10MBIT                       (0x01)
+#define MPI2_ETHPG0_MS_100MBIT                      (0x02)
+#define MPI2_ETHPG0_MS_1GBIT                        (0x03)
+
+
+/*Ethernet Page 1 */
+
+typedef struct _MPI2_CONFIG_PAGE_ETHERNET_1 {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                 /*0x00 */
+	U32
+		Reserved0;              /*0x08 */
+	U32
+		Flags;                  /*0x0C */
+	U8
+		MediaState;             /*0x10 */
+	U8
+		Reserved1;              /*0x11 */
+	U16
+		Reserved2;              /*0x12 */
+	U8
+		MacAddress[6];          /*0x14 */
+	U8
+		Reserved3;              /*0x1A */
+	U8
+		Reserved4;              /*0x1B */
+	MPI2_ETHERNET_IP_ADDR
+		StaticIpAddress;        /*0x1C */
+	MPI2_ETHERNET_IP_ADDR
+		StaticSubnetMask;       /*0x2C */
+	MPI2_ETHERNET_IP_ADDR
+		StaticGatewayIpAddress; /*0x3C */
+	MPI2_ETHERNET_IP_ADDR
+		StaticDNS1IpAddress;    /*0x4C */
+	MPI2_ETHERNET_IP_ADDR
+		StaticDNS2IpAddress;    /*0x5C */
+	U32
+		Reserved5;              /*0x6C */
+	U32
+		Reserved6;              /*0x70 */
+	U32
+		Reserved7;              /*0x74 */
+	U32
+		Reserved8;              /*0x78 */
+	U8
+		HostName[MPI2_ETHERNET_HOST_NAME_LENGTH];/*0x7C */
+} MPI2_CONFIG_PAGE_ETHERNET_1,
+	*PTR_MPI2_CONFIG_PAGE_ETHERNET_1,
+	Mpi2EthernetPage1_t, *pMpi2EthernetPage1_t;
+
+#define MPI2_ETHERNETPAGE1_PAGEVERSION   (0x00)
+
+/*values for Ethernet Page 1 Flags field */
+#define MPI2_ETHPG1_FLAG_SET_DEFAULT_IF             (0x00000100)
+#define MPI2_ETHPG1_FLAG_ENABLE_FW_DOWNLOAD         (0x00000080)
+#define MPI2_ETHPG1_FLAG_ENABLE_TELNET              (0x00000040)
+#define MPI2_ETHPG1_FLAG_ENABLE_SSH2                (0x00000020)
+#define MPI2_ETHPG1_FLAG_ENABLE_DHCP_CLIENT         (0x00000010)
+#define MPI2_ETHPG1_FLAG_ENABLE_IPV6                (0x00000008)
+#define MPI2_ETHPG1_FLAG_ENABLE_IPV4                (0x00000004)
+#define MPI2_ETHPG1_FLAG_USE_IPV6_ADDRESSES         (0x00000002)
+#define MPI2_ETHPG1_FLAG_ENABLE_ETH_IF              (0x00000001)
+
+/*values for Ethernet Page 1 MediaState field */
+#define MPI2_ETHPG1_MS_DUPLEX_MASK                  (0x80)
+#define MPI2_ETHPG1_MS_HALF_DUPLEX                  (0x00)
+#define MPI2_ETHPG1_MS_FULL_DUPLEX                  (0x80)
+
+#define MPI2_ETHPG1_MS_DATA_RATE_MASK               (0x07)
+#define MPI2_ETHPG1_MS_DATA_RATE_AUTO               (0x00)
+#define MPI2_ETHPG1_MS_DATA_RATE_10MBIT             (0x01)
+#define MPI2_ETHPG1_MS_DATA_RATE_100MBIT            (0x02)
+#define MPI2_ETHPG1_MS_DATA_RATE_1GBIT              (0x03)
+
+
+/****************************************************************************
+*  Extended Manufacturing Config Pages
+****************************************************************************/
+
+/*
+ *Generic structure to use for product-specific extended manufacturing pages
+ *(currently Extended Manufacturing Page 40 through Extended Manufacturing
+ *Page 60).
+ */
+
+typedef struct _MPI2_CONFIG_PAGE_EXT_MAN_PS {
+	MPI2_CONFIG_EXTENDED_PAGE_HEADER
+		Header;                 /*0x00 */
+	U32
+		ProductSpecificInfo;    /*0x08 */
+} MPI2_CONFIG_PAGE_EXT_MAN_PS,
+	*PTR_MPI2_CONFIG_PAGE_EXT_MAN_PS,
+	Mpi2ExtManufacturingPagePS_t,
+	*pMpi2ExtManufacturingPagePS_t;
+
+/*PageVersion should be provided by product-specific code */
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_init.h b/drivers/scsi/mpt3sas/mpi/mpi2_init.h
new file mode 100644
index 000000000000..a079e5242474
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_init.h
@@ -0,0 +1,560 @@
+/*
+ * Copyright (c) 2000-2012 LSI Corporation.
+ *
+ *
+ *          Name:  mpi2_init.h
+ *         Title:  MPI SCSI initiator mode messages and structures
+ * Creation Date:  June 23, 2006
+ *
+ * mpi2_init.h Version:  02.00.14
+ *
+ * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
+ *       prefix are for use only on MPI v2.5 products, and must not be used
+ *       with MPI v2.0 products. Unless otherwise noted, names beginning with
+ *       MPI2 or Mpi2 are for use with both MPI v2.0 and MPI v2.5 products.
+ *
+ * Version History
+ * ---------------
+ *
+ * Date      Version   Description
+ * --------  --------  ------------------------------------------------------
+ * 04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ * 10-31-07  02.00.01  Fixed name for pMpi2SCSITaskManagementRequest_t.
+ * 12-18-07  02.00.02  Modified Task Management Target Reset Method defines.
+ * 02-29-08  02.00.03  Added Query Task Set and Query Unit Attention.
+ * 03-03-08  02.00.04  Fixed name of struct _MPI2_SCSI_TASK_MANAGE_REPLY.
+ * 05-21-08  02.00.05  Fixed typo in name of Mpi2SepRequest_t.
+ * 10-02-08  02.00.06  Removed Untagged and No Disconnect values from SCSI IO
+ *                     Control field Task Attribute flags.
+ *                     Moved LUN field defines to mpi2.h becasue they are
+ *                     common to many structures.
+ * 05-06-09  02.00.07  Changed task management type of Query Unit Attention to
+ *                     Query Asynchronous Event.
+ *                     Defined two new bits in the SlotStatus field of the SCSI
+ *                     Enclosure Processor Request and Reply.
+ * 10-28-09  02.00.08  Added defines for decoding the ResponseInfo bytes for
+ *                     both SCSI IO Error Reply and SCSI Task Management Reply.
+ *                     Added ResponseInfo field to MPI2_SCSI_TASK_MANAGE_REPLY.
+ *                     Added MPI2_SCSITASKMGMT_RSP_TM_OVERLAPPED_TAG define.
+ * 02-10-10  02.00.09  Removed unused structure that had "#if 0" around it.
+ * 05-12-10  02.00.10  Added optional vendor-unique region to SCSI IO Request.
+ * 11-10-10  02.00.11  Added MPI2_SCSIIO_NUM_SGLOFFSETS define.
+ * 11-18-11  02.00.12  Incorporating additions for MPI v2.5.
+ * 02-06-12  02.00.13  Added alternate defines for Task Priority / Command
+ *                     Priority to match SAM-4.
+ *                     Added EEDPErrorOffset to MPI2_SCSI_IO_REPLY.
+ * 07-10-12  02.00.14  Added MPI2_SCSIIO_CONTROL_SHIFT_DATADIRECTION.
+ * --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_INIT_H
+#define MPI2_INIT_H
+
+/*****************************************************************************
+*
+*              SCSI Initiator Messages
+*
+*****************************************************************************/
+
+/****************************************************************************
+* SCSI IO messages and associated structures
+****************************************************************************/
+
+typedef struct _MPI2_SCSI_IO_CDB_EEDP32 {
+	U8 CDB[20];		/*0x00 */
+	U32 PrimaryReferenceTag;	/*0x14 */
+	U16 PrimaryApplicationTag;	/*0x18 */
+	U16 PrimaryApplicationTagMask;	/*0x1A */
+	U32 TransferLength;	/*0x1C */
+} MPI2_SCSI_IO_CDB_EEDP32, *PTR_MPI2_SCSI_IO_CDB_EEDP32,
+	Mpi2ScsiIoCdbEedp32_t, *pMpi2ScsiIoCdbEedp32_t;
+
+/*MPI v2.0 CDB field */
+typedef union _MPI2_SCSI_IO_CDB_UNION {
+	U8 CDB32[32];
+	MPI2_SCSI_IO_CDB_EEDP32 EEDP32;
+	MPI2_SGE_SIMPLE_UNION SGE;
+} MPI2_SCSI_IO_CDB_UNION, *PTR_MPI2_SCSI_IO_CDB_UNION,
+	Mpi2ScsiIoCdb_t, *pMpi2ScsiIoCdb_t;
+
+/*MPI v2.0 SCSI IO Request Message */
+typedef struct _MPI2_SCSI_IO_REQUEST {
+	U16 DevHandle;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved1;		/*0x04 */
+	U8 Reserved2;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U32 SenseBufferLowAddress;	/*0x0C */
+	U16 SGLFlags;		/*0x10 */
+	U8 SenseBufferLength;	/*0x12 */
+	U8 Reserved4;		/*0x13 */
+	U8 SGLOffset0;		/*0x14 */
+	U8 SGLOffset1;		/*0x15 */
+	U8 SGLOffset2;		/*0x16 */
+	U8 SGLOffset3;		/*0x17 */
+	U32 SkipCount;		/*0x18 */
+	U32 DataLength;		/*0x1C */
+	U32 BidirectionalDataLength;	/*0x20 */
+	U16 IoFlags;		/*0x24 */
+	U16 EEDPFlags;		/*0x26 */
+	U32 EEDPBlockSize;	/*0x28 */
+	U32 SecondaryReferenceTag;	/*0x2C */
+	U16 SecondaryApplicationTag;	/*0x30 */
+	U16 ApplicationTagTranslationMask;	/*0x32 */
+	U8 LUN[8];		/*0x34 */
+	U32 Control;		/*0x3C */
+	MPI2_SCSI_IO_CDB_UNION CDB;	/*0x40 */
+
+#ifdef MPI2_SCSI_IO_VENDOR_UNIQUE_REGION /*typically this is left undefined */
+	MPI2_SCSI_IO_VENDOR_UNIQUE VendorRegion;
+#endif
+
+	MPI2_SGE_IO_UNION SGL;	/*0x60 */
+
+} MPI2_SCSI_IO_REQUEST, *PTR_MPI2_SCSI_IO_REQUEST,
+	Mpi2SCSIIORequest_t, *pMpi2SCSIIORequest_t;
+
+/*SCSI IO MsgFlags bits */
+
+/*MsgFlags for SenseBufferAddressSpace */
+#define MPI2_SCSIIO_MSGFLAGS_MASK_SENSE_ADDR        (0x0C)
+#define MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR      (0x00)
+#define MPI2_SCSIIO_MSGFLAGS_IOCDDR_SENSE_ADDR      (0x04)
+#define MPI2_SCSIIO_MSGFLAGS_IOCPLB_SENSE_ADDR      (0x08)
+#define MPI2_SCSIIO_MSGFLAGS_IOCPLBNTA_SENSE_ADDR   (0x0C)
+
+/*SCSI IO SGLFlags bits */
+
+/*base values for Data Location Address Space */
+#define MPI2_SCSIIO_SGLFLAGS_ADDR_MASK              (0x0C)
+#define MPI2_SCSIIO_SGLFLAGS_SYSTEM_ADDR            (0x00)
+#define MPI2_SCSIIO_SGLFLAGS_IOCDDR_ADDR            (0x04)
+#define MPI2_SCSIIO_SGLFLAGS_IOCPLB_ADDR            (0x08)
+#define MPI2_SCSIIO_SGLFLAGS_IOCPLBNTA_ADDR         (0x0C)
+
+/*base values for Type */
+#define MPI2_SCSIIO_SGLFLAGS_TYPE_MASK              (0x03)
+#define MPI2_SCSIIO_SGLFLAGS_TYPE_MPI               (0x00)
+#define MPI2_SCSIIO_SGLFLAGS_TYPE_IEEE32            (0x01)
+#define MPI2_SCSIIO_SGLFLAGS_TYPE_IEEE64            (0x02)
+
+/*shift values for each sub-field */
+#define MPI2_SCSIIO_SGLFLAGS_SGL3_SHIFT             (12)
+#define MPI2_SCSIIO_SGLFLAGS_SGL2_SHIFT             (8)
+#define MPI2_SCSIIO_SGLFLAGS_SGL1_SHIFT             (4)
+#define MPI2_SCSIIO_SGLFLAGS_SGL0_SHIFT             (0)
+
+/*number of SGLOffset fields */
+#define MPI2_SCSIIO_NUM_SGLOFFSETS                  (4)
+
+/*SCSI IO IoFlags bits */
+
+/*Large CDB Address Space */
+#define MPI2_SCSIIO_CDB_ADDR_MASK                   (0x6000)
+#define MPI2_SCSIIO_CDB_ADDR_SYSTEM                 (0x0000)
+#define MPI2_SCSIIO_CDB_ADDR_IOCDDR                 (0x2000)
+#define MPI2_SCSIIO_CDB_ADDR_IOCPLB                 (0x4000)
+#define MPI2_SCSIIO_CDB_ADDR_IOCPLBNTA              (0x6000)
+
+#define MPI2_SCSIIO_IOFLAGS_LARGE_CDB               (0x1000)
+#define MPI2_SCSIIO_IOFLAGS_BIDIRECTIONAL           (0x0800)
+#define MPI2_SCSIIO_IOFLAGS_MULTICAST               (0x0400)
+#define MPI2_SCSIIO_IOFLAGS_CMD_DETERMINES_DATA_DIR (0x0200)
+#define MPI2_SCSIIO_IOFLAGS_CDBLENGTH_MASK          (0x01FF)
+
+/*SCSI IO EEDPFlags bits */
+
+#define MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG        (0x8000)
+#define MPI2_SCSIIO_EEDPFLAGS_INC_SEC_REFTAG        (0x4000)
+#define MPI2_SCSIIO_EEDPFLAGS_INC_PRI_APPTAG        (0x2000)
+#define MPI2_SCSIIO_EEDPFLAGS_INC_SEC_APPTAG        (0x1000)
+
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG          (0x0400)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG          (0x0200)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD           (0x0100)
+
+#define MPI2_SCSIIO_EEDPFLAGS_PASSTHRU_REFTAG       (0x0008)
+
+#define MPI2_SCSIIO_EEDPFLAGS_MASK_OP               (0x0007)
+#define MPI2_SCSIIO_EEDPFLAGS_NOOP_OP               (0x0000)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_OP              (0x0001)
+#define MPI2_SCSIIO_EEDPFLAGS_STRIP_OP              (0x0002)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP       (0x0003)
+#define MPI2_SCSIIO_EEDPFLAGS_INSERT_OP             (0x0004)
+#define MPI2_SCSIIO_EEDPFLAGS_REPLACE_OP            (0x0006)
+#define MPI2_SCSIIO_EEDPFLAGS_CHECK_REGEN_OP        (0x0007)
+
+/*SCSI IO LUN fields: use MPI2_LUN_ from mpi2.h */
+
+/*SCSI IO Control bits */
+#define MPI2_SCSIIO_CONTROL_ADDCDBLEN_MASK      (0xFC000000)
+#define MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT     (26)
+
+#define MPI2_SCSIIO_CONTROL_DATADIRECTION_MASK  (0x03000000)
+#define MPI2_SCSIIO_CONTROL_SHIFT_DATADIRECTION (24)
+#define MPI2_SCSIIO_CONTROL_NODATATRANSFER      (0x00000000)
+#define MPI2_SCSIIO_CONTROL_WRITE               (0x01000000)
+#define MPI2_SCSIIO_CONTROL_READ                (0x02000000)
+#define MPI2_SCSIIO_CONTROL_BIDIRECTIONAL       (0x03000000)
+
+#define MPI2_SCSIIO_CONTROL_TASKPRI_MASK        (0x00007800)
+#define MPI2_SCSIIO_CONTROL_TASKPRI_SHIFT       (11)
+/*alternate name for the previous field; called Command Priority in SAM-4 */
+#define MPI2_SCSIIO_CONTROL_CMDPRI_MASK         (0x00007800)
+#define MPI2_SCSIIO_CONTROL_CMDPRI_SHIFT        (11)
+
+#define MPI2_SCSIIO_CONTROL_TASKATTRIBUTE_MASK  (0x00000700)
+#define MPI2_SCSIIO_CONTROL_SIMPLEQ             (0x00000000)
+#define MPI2_SCSIIO_CONTROL_HEADOFQ             (0x00000100)
+#define MPI2_SCSIIO_CONTROL_ORDEREDQ            (0x00000200)
+#define MPI2_SCSIIO_CONTROL_ACAQ                (0x00000400)
+
+#define MPI2_SCSIIO_CONTROL_TLR_MASK            (0x000000C0)
+#define MPI2_SCSIIO_CONTROL_NO_TLR              (0x00000000)
+#define MPI2_SCSIIO_CONTROL_TLR_ON              (0x00000040)
+#define MPI2_SCSIIO_CONTROL_TLR_OFF             (0x00000080)
+
+/*MPI v2.5 CDB field */
+typedef union _MPI25_SCSI_IO_CDB_UNION {
+	U8 CDB32[32];
+	MPI2_SCSI_IO_CDB_EEDP32 EEDP32;
+	MPI2_IEEE_SGE_SIMPLE64 SGE;
+} MPI25_SCSI_IO_CDB_UNION, *PTR_MPI25_SCSI_IO_CDB_UNION,
+	Mpi25ScsiIoCdb_t, *pMpi25ScsiIoCdb_t;
+
+/*MPI v2.5 SCSI IO Request Message */
+typedef struct _MPI25_SCSI_IO_REQUEST {
+	U16 DevHandle;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved1;		/*0x04 */
+	U8 Reserved2;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U32 SenseBufferLowAddress;	/*0x0C */
+	U8 DMAFlags;		/*0x10 */
+	U8 Reserved5;		/*0x11 */
+	U8 SenseBufferLength;	/*0x12 */
+	U8 Reserved4;		/*0x13 */
+	U8 SGLOffset0;		/*0x14 */
+	U8 SGLOffset1;		/*0x15 */
+	U8 SGLOffset2;		/*0x16 */
+	U8 SGLOffset3;		/*0x17 */
+	U32 SkipCount;		/*0x18 */
+	U32 DataLength;		/*0x1C */
+	U32 BidirectionalDataLength;	/*0x20 */
+	U16 IoFlags;		/*0x24 */
+	U16 EEDPFlags;		/*0x26 */
+	U16 EEDPBlockSize;	/*0x28 */
+	U16 Reserved6;		/*0x2A */
+	U32 SecondaryReferenceTag;	/*0x2C */
+	U16 SecondaryApplicationTag;	/*0x30 */
+	U16 ApplicationTagTranslationMask;	/*0x32 */
+	U8 LUN[8];		/*0x34 */
+	U32 Control;		/*0x3C */
+	MPI25_SCSI_IO_CDB_UNION CDB;	/*0x40 */
+
+#ifdef MPI25_SCSI_IO_VENDOR_UNIQUE_REGION /*typically this is left undefined */
+	MPI25_SCSI_IO_VENDOR_UNIQUE VendorRegion;
+#endif
+
+	MPI25_SGE_IO_UNION SGL;	/*0x60 */
+
+} MPI25_SCSI_IO_REQUEST, *PTR_MPI25_SCSI_IO_REQUEST,
+	Mpi25SCSIIORequest_t, *pMpi25SCSIIORequest_t;
+
+/*use MPI2_SCSIIO_MSGFLAGS_ defines for the MsgFlags field */
+
+/*Defines for the DMAFlags field
+ * Each setting affects 4 SGLS, from SGL0 to SGL3.
+ *     D = Data
+ *     C = Cache DIF
+ *     I = Interleaved
+ *     H = Host DIF
+ */
+#define MPI25_SCSIIO_DMAFLAGS_OP_MASK               (0x0F)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_D_D_D            (0x00)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_D_D_C            (0x01)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_D_D_I            (0x02)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_D_C_C            (0x03)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_D_C_I            (0x04)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_D_I_I            (0x05)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_C_C_C            (0x06)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_C_C_I            (0x07)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_C_I_I            (0x08)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_I_I_I            (0x09)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_H_D_D            (0x0A)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_H_D_C            (0x0B)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_H_D_I            (0x0C)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_H_C_C            (0x0D)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_H_C_I            (0x0E)
+#define MPI25_SCSIIO_DMAFLAGS_OP_D_H_I_I            (0x0F)
+
+/*number of SGLOffset fields */
+#define MPI25_SCSIIO_NUM_SGLOFFSETS                 (4)
+
+/*defines for the IoFlags field */
+#define MPI25_SCSIIO_IOFLAGS_IO_PATH_MASK           (0xC000)
+#define MPI25_SCSIIO_IOFLAGS_NORMAL_PATH            (0x0000)
+#define MPI25_SCSIIO_IOFLAGS_FAST_PATH              (0x4000)
+
+#define MPI25_SCSIIO_IOFLAGS_LARGE_CDB                  (0x1000)
+#define MPI25_SCSIIO_IOFLAGS_BIDIRECTIONAL              (0x0800)
+#define MPI25_SCSIIO_IOFLAGS_CDBLENGTH_MASK             (0x01FF)
+
+/*MPI v2.5 defines for the EEDPFlags bits */
+/*use MPI2_SCSIIO_EEDPFLAGS_ defines for the other EEDPFlags bits */
+#define MPI25_SCSIIO_EEDPFLAGS_ESCAPE_MODE_MASK             (0x00C0)
+#define MPI25_SCSIIO_EEDPFLAGS_COMPATIBLE_MODE              (0x0000)
+#define MPI25_SCSIIO_EEDPFLAGS_DO_NOT_DISABLE_MODE          (0x0040)
+#define MPI25_SCSIIO_EEDPFLAGS_APPTAG_DISABLE_MODE          (0x0080)
+#define MPI25_SCSIIO_EEDPFLAGS_APPTAG_REFTAG_DISABLE_MODE   (0x00C0)
+
+#define MPI25_SCSIIO_EEDPFLAGS_HOST_GUARD_METHOD_MASK       (0x0030)
+#define MPI25_SCSIIO_EEDPFLAGS_T10_CRC_HOST_GUARD           (0x0000)
+#define MPI25_SCSIIO_EEDPFLAGS_IP_CHKSUM_HOST_GUARD         (0x0010)
+
+/*use MPI2_LUN_ defines from mpi2.h for the LUN field */
+
+/*use MPI2_SCSIIO_CONTROL_ defines for the Control field */
+
+/*NOTE: The SCSI IO Reply is nearly the same for MPI 2.0 and MPI 2.5, so
+ *      MPI2_SCSI_IO_REPLY is used for both.
+ */
+
+/*SCSI IO Error Reply Message */
+typedef struct _MPI2_SCSI_IO_REPLY {
+	U16 DevHandle;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved1;		/*0x04 */
+	U8 Reserved2;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U8 SCSIStatus;		/*0x0C */
+	U8 SCSIState;		/*0x0D */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U32 TransferCount;	/*0x14 */
+	U32 SenseCount;		/*0x18 */
+	U32 ResponseInfo;	/*0x1C */
+	U16 TaskTag;		/*0x20 */
+	U16 Reserved4;		/*0x22 */
+	U32 BidirectionalTransferCount;	/*0x24 */
+	U32 EEDPErrorOffset;	/*0x28 *//*MPI 2.5 only; Reserved in MPI 2.0*/
+	U32 Reserved6;		/*0x2C */
+} MPI2_SCSI_IO_REPLY, *PTR_MPI2_SCSI_IO_REPLY,
+	Mpi2SCSIIOReply_t, *pMpi2SCSIIOReply_t;
+
+/*SCSI IO Reply SCSIStatus values (SAM-4 status codes) */
+
+#define MPI2_SCSI_STATUS_GOOD                   (0x00)
+#define MPI2_SCSI_STATUS_CHECK_CONDITION        (0x02)
+#define MPI2_SCSI_STATUS_CONDITION_MET          (0x04)
+#define MPI2_SCSI_STATUS_BUSY                   (0x08)
+#define MPI2_SCSI_STATUS_INTERMEDIATE           (0x10)
+#define MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET   (0x14)
+#define MPI2_SCSI_STATUS_RESERVATION_CONFLICT   (0x18)
+#define MPI2_SCSI_STATUS_COMMAND_TERMINATED     (0x22)	/*obsolete */
+#define MPI2_SCSI_STATUS_TASK_SET_FULL          (0x28)
+#define MPI2_SCSI_STATUS_ACA_ACTIVE             (0x30)
+#define MPI2_SCSI_STATUS_TASK_ABORTED           (0x40)
+
+/*SCSI IO Reply SCSIState flags */
+
+#define MPI2_SCSI_STATE_RESPONSE_INFO_VALID     (0x10)
+#define MPI2_SCSI_STATE_TERMINATED              (0x08)
+#define MPI2_SCSI_STATE_NO_SCSI_STATUS          (0x04)
+#define MPI2_SCSI_STATE_AUTOSENSE_FAILED        (0x02)
+#define MPI2_SCSI_STATE_AUTOSENSE_VALID         (0x01)
+
+/*masks and shifts for the ResponseInfo field */
+
+#define MPI2_SCSI_RI_MASK_REASONCODE            (0x000000FF)
+#define MPI2_SCSI_RI_SHIFT_REASONCODE           (0)
+
+#define MPI2_SCSI_TASKTAG_UNKNOWN               (0xFFFF)
+
+/****************************************************************************
+* SCSI Task Management messages
+****************************************************************************/
+
+/*SCSI Task Management Request Message */
+typedef struct _MPI2_SCSI_TASK_MANAGE_REQUEST {
+	U16 DevHandle;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U8 Reserved1;		/*0x04 */
+	U8 TaskType;		/*0x05 */
+	U8 Reserved2;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U8 LUN[8];		/*0x0C */
+	U32 Reserved4[7];	/*0x14 */
+	U16 TaskMID;		/*0x30 */
+	U16 Reserved5;		/*0x32 */
+} MPI2_SCSI_TASK_MANAGE_REQUEST,
+	*PTR_MPI2_SCSI_TASK_MANAGE_REQUEST,
+	Mpi2SCSITaskManagementRequest_t,
+	*pMpi2SCSITaskManagementRequest_t;
+
+/*TaskType values */
+
+#define MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK           (0x01)
+#define MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET        (0x02)
+#define MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET         (0x03)
+#define MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET   (0x05)
+#define MPI2_SCSITASKMGMT_TASKTYPE_CLEAR_TASK_SET       (0x06)
+#define MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK           (0x07)
+#define MPI2_SCSITASKMGMT_TASKTYPE_CLR_ACA              (0x08)
+#define MPI2_SCSITASKMGMT_TASKTYPE_QRY_TASK_SET         (0x09)
+#define MPI2_SCSITASKMGMT_TASKTYPE_QRY_ASYNC_EVENT      (0x0A)
+
+/*obsolete TaskType name */
+#define MPI2_SCSITASKMGMT_TASKTYPE_QRY_UNIT_ATTENTION \
+		(MPI2_SCSITASKMGMT_TASKTYPE_QRY_ASYNC_EVENT)
+
+/*MsgFlags bits */
+
+#define MPI2_SCSITASKMGMT_MSGFLAGS_MASK_TARGET_RESET    (0x18)
+#define MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET           (0x00)
+#define MPI2_SCSITASKMGMT_MSGFLAGS_NEXUS_RESET_SRST     (0x08)
+#define MPI2_SCSITASKMGMT_MSGFLAGS_SAS_HARD_LINK_RESET  (0x10)
+
+#define MPI2_SCSITASKMGMT_MSGFLAGS_DO_NOT_SEND_TASK_IU  (0x01)
+
+/*SCSI Task Management Reply Message */
+typedef struct _MPI2_SCSI_TASK_MANAGE_REPLY {
+	U16 DevHandle;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U8 ResponseCode;	/*0x04 */
+	U8 TaskType;		/*0x05 */
+	U8 Reserved1;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved2;		/*0x0A */
+	U16 Reserved3;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U32 TerminationCount;	/*0x14 */
+	U32 ResponseInfo;	/*0x18 */
+} MPI2_SCSI_TASK_MANAGE_REPLY,
+	*PTR_MPI2_SCSI_TASK_MANAGE_REPLY,
+	Mpi2SCSITaskManagementReply_t, *pMpi2SCSIManagementReply_t;
+
+/*ResponseCode values */
+
+#define MPI2_SCSITASKMGMT_RSP_TM_COMPLETE               (0x00)
+#define MPI2_SCSITASKMGMT_RSP_INVALID_FRAME             (0x02)
+#define MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED          (0x04)
+#define MPI2_SCSITASKMGMT_RSP_TM_FAILED                 (0x05)
+#define MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED              (0x08)
+#define MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN            (0x09)
+#define MPI2_SCSITASKMGMT_RSP_TM_OVERLAPPED_TAG         (0x0A)
+#define MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC          (0x80)
+
+/*masks and shifts for the ResponseInfo field */
+
+#define MPI2_SCSITASKMGMT_RI_MASK_REASONCODE            (0x000000FF)
+#define MPI2_SCSITASKMGMT_RI_SHIFT_REASONCODE           (0)
+#define MPI2_SCSITASKMGMT_RI_MASK_ARI2                  (0x0000FF00)
+#define MPI2_SCSITASKMGMT_RI_SHIFT_ARI2                 (8)
+#define MPI2_SCSITASKMGMT_RI_MASK_ARI1                  (0x00FF0000)
+#define MPI2_SCSITASKMGMT_RI_SHIFT_ARI1                 (16)
+#define MPI2_SCSITASKMGMT_RI_MASK_ARI0                  (0xFF000000)
+#define MPI2_SCSITASKMGMT_RI_SHIFT_ARI0                 (24)
+
+/****************************************************************************
+* SCSI Enclosure Processor messages
+****************************************************************************/
+
+/*SCSI Enclosure Processor Request Message */
+typedef struct _MPI2_SEP_REQUEST {
+	U16 DevHandle;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U8 Action;		/*0x04 */
+	U8 Flags;		/*0x05 */
+	U8 Reserved1;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved2;		/*0x0A */
+	U32 SlotStatus;		/*0x0C */
+	U32 Reserved3;		/*0x10 */
+	U32 Reserved4;		/*0x14 */
+	U32 Reserved5;		/*0x18 */
+	U16 Slot;		/*0x1C */
+	U16 EnclosureHandle;	/*0x1E */
+} MPI2_SEP_REQUEST, *PTR_MPI2_SEP_REQUEST,
+	Mpi2SepRequest_t, *pMpi2SepRequest_t;
+
+/*Action defines */
+#define MPI2_SEP_REQ_ACTION_WRITE_STATUS                (0x00)
+#define MPI2_SEP_REQ_ACTION_READ_STATUS                 (0x01)
+
+/*Flags defines */
+#define MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS            (0x00)
+#define MPI2_SEP_REQ_FLAGS_ENCLOSURE_SLOT_ADDRESS       (0x01)
+
+/*SlotStatus defines */
+#define MPI2_SEP_REQ_SLOTSTATUS_REQUEST_REMOVE          (0x00040000)
+#define MPI2_SEP_REQ_SLOTSTATUS_IDENTIFY_REQUEST        (0x00020000)
+#define MPI2_SEP_REQ_SLOTSTATUS_REBUILD_STOPPED         (0x00000200)
+#define MPI2_SEP_REQ_SLOTSTATUS_HOT_SPARE               (0x00000100)
+#define MPI2_SEP_REQ_SLOTSTATUS_UNCONFIGURED            (0x00000080)
+#define MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT         (0x00000040)
+#define MPI2_SEP_REQ_SLOTSTATUS_IN_CRITICAL_ARRAY       (0x00000010)
+#define MPI2_SEP_REQ_SLOTSTATUS_IN_FAILED_ARRAY         (0x00000008)
+#define MPI2_SEP_REQ_SLOTSTATUS_DEV_REBUILDING          (0x00000004)
+#define MPI2_SEP_REQ_SLOTSTATUS_DEV_FAULTY              (0x00000002)
+#define MPI2_SEP_REQ_SLOTSTATUS_NO_ERROR                (0x00000001)
+
+/*SCSI Enclosure Processor Reply Message */
+typedef struct _MPI2_SEP_REPLY {
+	U16 DevHandle;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U8 Action;		/*0x04 */
+	U8 Flags;		/*0x05 */
+	U8 Reserved1;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved2;		/*0x0A */
+	U16 Reserved3;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U32 SlotStatus;		/*0x14 */
+	U32 Reserved4;		/*0x18 */
+	U16 Slot;		/*0x1C */
+	U16 EnclosureHandle;	/*0x1E */
+} MPI2_SEP_REPLY, *PTR_MPI2_SEP_REPLY,
+	Mpi2SepReply_t, *pMpi2SepReply_t;
+
+/*SlotStatus defines */
+#define MPI2_SEP_REPLY_SLOTSTATUS_REMOVE_READY          (0x00040000)
+#define MPI2_SEP_REPLY_SLOTSTATUS_IDENTIFY_REQUEST      (0x00020000)
+#define MPI2_SEP_REPLY_SLOTSTATUS_REBUILD_STOPPED       (0x00000200)
+#define MPI2_SEP_REPLY_SLOTSTATUS_HOT_SPARE             (0x00000100)
+#define MPI2_SEP_REPLY_SLOTSTATUS_UNCONFIGURED          (0x00000080)
+#define MPI2_SEP_REPLY_SLOTSTATUS_PREDICTED_FAULT       (0x00000040)
+#define MPI2_SEP_REPLY_SLOTSTATUS_IN_CRITICAL_ARRAY     (0x00000010)
+#define MPI2_SEP_REPLY_SLOTSTATUS_IN_FAILED_ARRAY       (0x00000008)
+#define MPI2_SEP_REPLY_SLOTSTATUS_DEV_REBUILDING        (0x00000004)
+#define MPI2_SEP_REPLY_SLOTSTATUS_DEV_FAULTY            (0x00000002)
+#define MPI2_SEP_REPLY_SLOTSTATUS_NO_ERROR              (0x00000001)
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
new file mode 100644
index 000000000000..0de425d8fd70
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
@@ -0,0 +1,1665 @@
+/*
+ * Copyright (c) 2000-2012 LSI Corporation.
+ *
+ *
+ *          Name:  mpi2_ioc.h
+ *         Title:  MPI IOC, Port, Event, FW Download, and FW Upload messages
+ * Creation Date:  October 11, 2006
+ *
+ * mpi2_ioc.h Version:  02.00.21
+ *
+ * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
+ *       prefix are for use only on MPI v2.5 products, and must not be used
+ *       with MPI v2.0 products. Unless otherwise noted, names beginning with
+ *       MPI2 or Mpi2 are for use with both MPI v2.0 and MPI v2.5 products.
+ *
+ * Version History
+ * ---------------
+ *
+ * Date      Version   Description
+ * --------  --------  ------------------------------------------------------
+ * 04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ * 06-04-07  02.00.01  In IOCFacts Reply structure, renamed MaxDevices to
+ *                     MaxTargets.
+ *                     Added TotalImageSize field to FWDownload Request.
+ *                     Added reserved words to FWUpload Request.
+ * 06-26-07  02.00.02  Added IR Configuration Change List Event.
+ * 08-31-07  02.00.03  Removed SystemReplyQueueDepth field from the IOCInit
+ *                     request and replaced it with
+ *                     ReplyDescriptorPostQueueDepth and ReplyFreeQueueDepth.
+ *                     Replaced the MinReplyQueueDepth field of the IOCFacts
+ *                     reply with MaxReplyDescriptorPostQueueDepth.
+ *                     Added MPI2_RDPQ_DEPTH_MIN define to specify the minimum
+ *                     depth for the Reply Descriptor Post Queue.
+ *                     Added SASAddress field to Initiator Device Table
+ *                     Overflow Event data.
+ * 10-31-07  02.00.04  Added ReasonCode MPI2_EVENT_SAS_INIT_RC_NOT_RESPONDING
+ *                     for SAS Initiator Device Status Change Event data.
+ *                     Modified Reason Code defines for SAS Topology Change
+ *                     List Event data, including adding a bit for PHY Vacant
+ *                     status, and adding a mask for the Reason Code.
+ *                     Added define for
+ *                     MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING.
+ *                     Added define for MPI2_EXT_IMAGE_TYPE_MEGARAID.
+ * 12-18-07  02.00.05  Added Boot Status defines for the IOCExceptions field of
+ *                     the IOCFacts Reply.
+ *                     Removed MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER define.
+ *                     Moved MPI2_VERSION_UNION to mpi2.h.
+ *                     Changed MPI2_EVENT_NOTIFICATION_REQUEST to use masks
+ *                     instead of enables, and added SASBroadcastPrimitiveMasks
+ *                     field.
+ *                     Added Log Entry Added Event and related structure.
+ * 02-29-08  02.00.06  Added define MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID.
+ *                     Removed define MPI2_IOCFACTS_PROTOCOL_SMP_TARGET.
+ *                     Added MaxVolumes and MaxPersistentEntries fields to
+ *                     IOCFacts reply.
+ *                     Added ProtocalFlags and IOCCapabilities fields to
+ *                     MPI2_FW_IMAGE_HEADER.
+ *                     Removed MPI2_PORTENABLE_FLAGS_ENABLE_SINGLE_PORT.
+ * 03-03-08  02.00.07  Fixed MPI2_FW_IMAGE_HEADER by changing Reserved26 to
+ *                     a U16 (from a U32).
+ *                     Removed extra 's' from EventMasks name.
+ * 06-27-08  02.00.08  Fixed an offset in a comment.
+ * 10-02-08  02.00.09  Removed SystemReplyFrameSize from MPI2_IOC_INIT_REQUEST.
+ *                     Removed CurReplyFrameSize from MPI2_IOC_FACTS_REPLY and
+ *                     renamed MinReplyFrameSize to ReplyFrameSize.
+ *                     Added MPI2_IOCFACTS_EXCEPT_IR_FOREIGN_CONFIG_MAX.
+ *                     Added two new RAIDOperation values for Integrated RAID
+ *                     Operations Status Event data.
+ *                     Added four new IR Configuration Change List Event data
+ *                     ReasonCode values.
+ *                     Added two new ReasonCode defines for SAS Device Status
+ *                     Change Event data.
+ *                     Added three new DiscoveryStatus bits for the SAS
+ *                     Discovery event data.
+ *                     Added Multiplexing Status Change bit to the PhyStatus
+ *                     field of the SAS Topology Change List event data.
+ *                     Removed define for MPI2_INIT_IMAGE_BOOTFLAGS_XMEMCOPY.
+ *                     BootFlags are now product-specific.
+ *                     Added defines for the indivdual signature bytes
+ *                     for MPI2_INIT_IMAGE_FOOTER.
+ * 01-19-09  02.00.10  Added MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY define.
+ *                     Added MPI2_EVENT_SAS_DISC_DS_DOWNSTREAM_INITIATOR
+ *                     define.
+ *                     Added MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE
+ *                     define.
+ *                     Removed MPI2_EVENT_SAS_DISC_DS_SATA_INIT_FAILURE define.
+ * 05-06-09  02.00.11  Added MPI2_IOCFACTS_CAPABILITY_RAID_ACCELERATOR define.
+ *                     Added MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX define.
+ *                     Added two new reason codes for SAS Device Status Change
+ *                     Event.
+ *                     Added new event: SAS PHY Counter.
+ * 07-30-09  02.00.12  Added GPIO Interrupt event define and structure.
+ *                     Added MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER define.
+ *                     Added new product id family for 2208.
+ * 10-28-09  02.00.13  Added HostMSIxVectors field to MPI2_IOC_INIT_REQUEST.
+ *                     Added MaxMSIxVectors field to MPI2_IOC_FACTS_REPLY.
+ *                     Added MinDevHandle field to MPI2_IOC_FACTS_REPLY.
+ *                     Added MPI2_IOCFACTS_CAPABILITY_HOST_BASED_DISCOVERY.
+ *                     Added MPI2_EVENT_HOST_BASED_DISCOVERY_PHY define.
+ *                     Added MPI2_EVENT_SAS_TOPO_ES_NO_EXPANDER define.
+ *                     Added Host Based Discovery Phy Event data.
+ *                     Added defines for ProductID Product field
+ *                     (MPI2_FW_HEADER_PID_).
+ *                     Modified values for SAS ProductID Family
+ *                     (MPI2_FW_HEADER_PID_FAMILY_).
+ * 02-10-10  02.00.14  Added SAS Quiesce Event structure and defines.
+ *                     Added PowerManagementControl Request structures and
+ *                     defines.
+ * 05-12-10  02.00.15  Marked Task Set Full Event as obsolete.
+ *                     Added MPI2_EVENT_SAS_TOPO_LR_UNSUPPORTED_PHY define.
+ * 11-10-10  02.00.16  Added MPI2_FW_DOWNLOAD_ITYPE_MIN_PRODUCT_SPECIFIC.
+ * 02-23-11  02.00.17  Added SAS NOTIFY Primitive event, and added
+ *                     SASNotifyPrimitiveMasks field to
+ *                     MPI2_EVENT_NOTIFICATION_REQUEST.
+ *                     Added Temperature Threshold Event.
+ *                     Added Host Message Event.
+ *                     Added Send Host Message request and reply.
+ * 05-25-11  02.00.18  For Extended Image Header, added
+ *                     MPI2_EXT_IMAGE_TYPE_MIN_PRODUCT_SPECIFIC and
+ *                     MPI2_EXT_IMAGE_TYPE_MAX_PRODUCT_SPECIFIC defines.
+ *                     Deprecated MPI2_EXT_IMAGE_TYPE_MAX define.
+ * 08-24-11  02.00.19  Added PhysicalPort field to
+ *                     MPI2_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE structure.
+ *                     Marked MPI2_PM_CONTROL_FEATURE_PCIE_LINK as obsolete.
+ * 11-18-11  02.00.20  Incorporating additions for MPI v2.5.
+ * 03-29-12  02.00.21  Added a product specific range to event values.
+ * --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_IOC_H
+#define MPI2_IOC_H
+
+/*****************************************************************************
+*
+*              IOC Messages
+*
+*****************************************************************************/
+
+/****************************************************************************
+* IOCInit message
+****************************************************************************/
+
+/*IOCInit Request message */
+typedef struct _MPI2_IOC_INIT_REQUEST {
+	U8 WhoInit;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 MsgVersion;		/*0x0C */
+	U16 HeaderVersion;	/*0x0E */
+	U32 Reserved5;		/*0x10 */
+	U16 Reserved6;		/*0x14 */
+	U8 Reserved7;		/*0x16 */
+	U8 HostMSIxVectors;	/*0x17 */
+	U16 Reserved8;		/*0x18 */
+	U16 SystemRequestFrameSize;	/*0x1A */
+	U16 ReplyDescriptorPostQueueDepth;	/*0x1C */
+	U16 ReplyFreeQueueDepth;	/*0x1E */
+	U32 SenseBufferAddressHigh;	/*0x20 */
+	U32 SystemReplyAddressHigh;	/*0x24 */
+	U64 SystemRequestFrameBaseAddress;	/*0x28 */
+	U64 ReplyDescriptorPostQueueAddress;	/*0x30 */
+	U64 ReplyFreeQueueAddress;	/*0x38 */
+	U64 TimeStamp;		/*0x40 */
+} MPI2_IOC_INIT_REQUEST, *PTR_MPI2_IOC_INIT_REQUEST,
+	Mpi2IOCInitRequest_t, *pMpi2IOCInitRequest_t;
+
+/*WhoInit values */
+#define MPI2_WHOINIT_NOT_INITIALIZED            (0x00)
+#define MPI2_WHOINIT_SYSTEM_BIOS                (0x01)
+#define MPI2_WHOINIT_ROM_BIOS                   (0x02)
+#define MPI2_WHOINIT_PCI_PEER                   (0x03)
+#define MPI2_WHOINIT_HOST_DRIVER                (0x04)
+#define MPI2_WHOINIT_MANUFACTURER               (0x05)
+
+/*MsgVersion */
+#define MPI2_IOCINIT_MSGVERSION_MAJOR_MASK      (0xFF00)
+#define MPI2_IOCINIT_MSGVERSION_MAJOR_SHIFT     (8)
+#define MPI2_IOCINIT_MSGVERSION_MINOR_MASK      (0x00FF)
+#define MPI2_IOCINIT_MSGVERSION_MINOR_SHIFT     (0)
+
+/*HeaderVersion */
+#define MPI2_IOCINIT_HDRVERSION_UNIT_MASK       (0xFF00)
+#define MPI2_IOCINIT_HDRVERSION_UNIT_SHIFT      (8)
+#define MPI2_IOCINIT_HDRVERSION_DEV_MASK        (0x00FF)
+#define MPI2_IOCINIT_HDRVERSION_DEV_SHIFT       (0)
+
+/*minimum depth for the Reply Descriptor Post Queue */
+#define MPI2_RDPQ_DEPTH_MIN                     (16)
+
+/*IOCInit Reply message */
+typedef struct _MPI2_IOC_INIT_REPLY {
+	U8 WhoInit;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_IOC_INIT_REPLY, *PTR_MPI2_IOC_INIT_REPLY,
+	Mpi2IOCInitReply_t, *pMpi2IOCInitReply_t;
+
+/****************************************************************************
+* IOCFacts message
+****************************************************************************/
+
+/*IOCFacts Request message */
+typedef struct _MPI2_IOC_FACTS_REQUEST {
+	U16 Reserved1;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+} MPI2_IOC_FACTS_REQUEST, *PTR_MPI2_IOC_FACTS_REQUEST,
+	Mpi2IOCFactsRequest_t, *pMpi2IOCFactsRequest_t;
+
+/*IOCFacts Reply message */
+typedef struct _MPI2_IOC_FACTS_REPLY {
+	U16 MsgVersion;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 HeaderVersion;	/*0x04 */
+	U8 IOCNumber;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved1;		/*0x0A */
+	U16 IOCExceptions;	/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U8 MaxChainDepth;	/*0x14 */
+	U8 WhoInit;		/*0x15 */
+	U8 NumberOfPorts;	/*0x16 */
+	U8 MaxMSIxVectors;	/*0x17 */
+	U16 RequestCredit;	/*0x18 */
+	U16 ProductID;		/*0x1A */
+	U32 IOCCapabilities;	/*0x1C */
+	MPI2_VERSION_UNION FWVersion;	/*0x20 */
+	U16 IOCRequestFrameSize;	/*0x24 */
+	U16 IOCMaxChainSegmentSize;	/*0x26 */
+	U16 MaxInitiators;	/*0x28 */
+	U16 MaxTargets;		/*0x2A */
+	U16 MaxSasExpanders;	/*0x2C */
+	U16 MaxEnclosures;	/*0x2E */
+	U16 ProtocolFlags;	/*0x30 */
+	U16 HighPriorityCredit;	/*0x32 */
+	U16 MaxReplyDescriptorPostQueueDepth;	/*0x34 */
+	U8 ReplyFrameSize;	/*0x36 */
+	U8 MaxVolumes;		/*0x37 */
+	U16 MaxDevHandle;	/*0x38 */
+	U16 MaxPersistentEntries;	/*0x3A */
+	U16 MinDevHandle;	/*0x3C */
+	U16 Reserved4;		/*0x3E */
+} MPI2_IOC_FACTS_REPLY, *PTR_MPI2_IOC_FACTS_REPLY,
+	Mpi2IOCFactsReply_t, *pMpi2IOCFactsReply_t;
+
+/*MsgVersion */
+#define MPI2_IOCFACTS_MSGVERSION_MAJOR_MASK             (0xFF00)
+#define MPI2_IOCFACTS_MSGVERSION_MAJOR_SHIFT            (8)
+#define MPI2_IOCFACTS_MSGVERSION_MINOR_MASK             (0x00FF)
+#define MPI2_IOCFACTS_MSGVERSION_MINOR_SHIFT            (0)
+
+/*HeaderVersion */
+#define MPI2_IOCFACTS_HDRVERSION_UNIT_MASK              (0xFF00)
+#define MPI2_IOCFACTS_HDRVERSION_UNIT_SHIFT             (8)
+#define MPI2_IOCFACTS_HDRVERSION_DEV_MASK               (0x00FF)
+#define MPI2_IOCFACTS_HDRVERSION_DEV_SHIFT              (0)
+
+/*IOCExceptions */
+#define MPI2_IOCFACTS_EXCEPT_IR_FOREIGN_CONFIG_MAX      (0x0100)
+
+#define MPI2_IOCFACTS_EXCEPT_BOOTSTAT_MASK              (0x00E0)
+#define MPI2_IOCFACTS_EXCEPT_BOOTSTAT_GOOD              (0x0000)
+#define MPI2_IOCFACTS_EXCEPT_BOOTSTAT_BACKUP            (0x0020)
+#define MPI2_IOCFACTS_EXCEPT_BOOTSTAT_RESTORED          (0x0040)
+#define MPI2_IOCFACTS_EXCEPT_BOOTSTAT_CORRUPT_BACKUP    (0x0060)
+
+#define MPI2_IOCFACTS_EXCEPT_METADATA_UNSUPPORTED       (0x0010)
+#define MPI2_IOCFACTS_EXCEPT_MANUFACT_CHECKSUM_FAIL     (0x0008)
+#define MPI2_IOCFACTS_EXCEPT_FW_CHECKSUM_FAIL           (0x0004)
+#define MPI2_IOCFACTS_EXCEPT_RAID_CONFIG_INVALID        (0x0002)
+#define MPI2_IOCFACTS_EXCEPT_CONFIG_CHECKSUM_FAIL       (0x0001)
+
+/*defines for WhoInit field are after the IOCInit Request */
+
+/*ProductID field uses MPI2_FW_HEADER_PID_ */
+
+/*IOCCapabilities */
+#define MPI25_IOCFACTS_CAPABILITY_FAST_PATH_CAPABLE     (0x00020000)
+#define MPI2_IOCFACTS_CAPABILITY_HOST_BASED_DISCOVERY   (0x00010000)
+#define MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX            (0x00008000)
+#define MPI2_IOCFACTS_CAPABILITY_RAID_ACCELERATOR       (0x00004000)
+#define MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY           (0x00002000)
+#define MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID        (0x00001000)
+#define MPI2_IOCFACTS_CAPABILITY_TLR                    (0x00000800)
+#define MPI2_IOCFACTS_CAPABILITY_MULTICAST              (0x00000100)
+#define MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET   (0x00000080)
+#define MPI2_IOCFACTS_CAPABILITY_EEDP                   (0x00000040)
+#define MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER        (0x00000020)
+#define MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER        (0x00000010)
+#define MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER      (0x00000008)
+#define MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING (0x00000004)
+
+/*ProtocolFlags */
+#define MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET              (0x0001)
+#define MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR           (0x0002)
+
+/****************************************************************************
+* PortFacts message
+****************************************************************************/
+
+/*PortFacts Request message */
+typedef struct _MPI2_PORT_FACTS_REQUEST {
+	U16 Reserved1;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 PortNumber;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+} MPI2_PORT_FACTS_REQUEST, *PTR_MPI2_PORT_FACTS_REQUEST,
+	Mpi2PortFactsRequest_t, *pMpi2PortFactsRequest_t;
+
+/*PortFacts Reply message */
+typedef struct _MPI2_PORT_FACTS_REPLY {
+	U16 Reserved1;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 PortNumber;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U16 Reserved4;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U8 Reserved5;		/*0x14 */
+	U8 PortType;		/*0x15 */
+	U16 Reserved6;		/*0x16 */
+	U16 MaxPostedCmdBuffers;	/*0x18 */
+	U16 Reserved7;		/*0x1A */
+} MPI2_PORT_FACTS_REPLY, *PTR_MPI2_PORT_FACTS_REPLY,
+	Mpi2PortFactsReply_t, *pMpi2PortFactsReply_t;
+
+/*PortType values */
+#define MPI2_PORTFACTS_PORTTYPE_INACTIVE            (0x00)
+#define MPI2_PORTFACTS_PORTTYPE_FC                  (0x10)
+#define MPI2_PORTFACTS_PORTTYPE_ISCSI               (0x20)
+#define MPI2_PORTFACTS_PORTTYPE_SAS_PHYSICAL        (0x30)
+#define MPI2_PORTFACTS_PORTTYPE_SAS_VIRTUAL         (0x31)
+
+/****************************************************************************
+* PortEnable message
+****************************************************************************/
+
+/*PortEnable Request message */
+typedef struct _MPI2_PORT_ENABLE_REQUEST {
+	U16 Reserved1;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U8 Reserved2;		/*0x04 */
+	U8 PortFlags;		/*0x05 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+} MPI2_PORT_ENABLE_REQUEST, *PTR_MPI2_PORT_ENABLE_REQUEST,
+	Mpi2PortEnableRequest_t, *pMpi2PortEnableRequest_t;
+
+/*PortEnable Reply message */
+typedef struct _MPI2_PORT_ENABLE_REPLY {
+	U16 Reserved1;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U8 Reserved2;		/*0x04 */
+	U8 PortFlags;		/*0x05 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_PORT_ENABLE_REPLY, *PTR_MPI2_PORT_ENABLE_REPLY,
+	Mpi2PortEnableReply_t, *pMpi2PortEnableReply_t;
+
+/****************************************************************************
+* EventNotification message
+****************************************************************************/
+
+/*EventNotification Request message */
+#define MPI2_EVENT_NOTIFY_EVENTMASK_WORDS           (4)
+
+typedef struct _MPI2_EVENT_NOTIFICATION_REQUEST {
+	U16 Reserved1;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 Reserved5;		/*0x0C */
+	U32 Reserved6;		/*0x10 */
+	U32 EventMasks[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];	/*0x14 */
+	U16 SASBroadcastPrimitiveMasks;	/*0x24 */
+	U16 SASNotifyPrimitiveMasks;	/*0x26 */
+	U32 Reserved8;		/*0x28 */
+} MPI2_EVENT_NOTIFICATION_REQUEST,
+	*PTR_MPI2_EVENT_NOTIFICATION_REQUEST,
+	Mpi2EventNotificationRequest_t,
+	*pMpi2EventNotificationRequest_t;
+
+/*EventNotification Reply message */
+typedef struct _MPI2_EVENT_NOTIFICATION_REPLY {
+	U16 EventDataLength;	/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved1;		/*0x04 */
+	U8 AckRequired;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved2;		/*0x0A */
+	U16 Reserved3;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U16 Event;		/*0x14 */
+	U16 Reserved4;		/*0x16 */
+	U32 EventContext;	/*0x18 */
+	U32 EventData[1];	/*0x1C */
+} MPI2_EVENT_NOTIFICATION_REPLY, *PTR_MPI2_EVENT_NOTIFICATION_REPLY,
+	Mpi2EventNotificationReply_t,
+	*pMpi2EventNotificationReply_t;
+
+/*AckRequired */
+#define MPI2_EVENT_NOTIFICATION_ACK_NOT_REQUIRED    (0x00)
+#define MPI2_EVENT_NOTIFICATION_ACK_REQUIRED        (0x01)
+
+/*Event */
+#define MPI2_EVENT_LOG_DATA                         (0x0001)
+#define MPI2_EVENT_STATE_CHANGE                     (0x0002)
+#define MPI2_EVENT_HARD_RESET_RECEIVED              (0x0005)
+#define MPI2_EVENT_EVENT_CHANGE                     (0x000A)
+#define MPI2_EVENT_TASK_SET_FULL                    (0x000E)	/*obsolete */
+#define MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE         (0x000F)
+#define MPI2_EVENT_IR_OPERATION_STATUS              (0x0014)
+#define MPI2_EVENT_SAS_DISCOVERY                    (0x0016)
+#define MPI2_EVENT_SAS_BROADCAST_PRIMITIVE          (0x0017)
+#define MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE    (0x0018)
+#define MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW          (0x0019)
+#define MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST         (0x001C)
+#define MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE    (0x001D)
+#define MPI2_EVENT_IR_VOLUME                        (0x001E)
+#define MPI2_EVENT_IR_PHYSICAL_DISK                 (0x001F)
+#define MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST     (0x0020)
+#define MPI2_EVENT_LOG_ENTRY_ADDED                  (0x0021)
+#define MPI2_EVENT_SAS_PHY_COUNTER                  (0x0022)
+#define MPI2_EVENT_GPIO_INTERRUPT                   (0x0023)
+#define MPI2_EVENT_HOST_BASED_DISCOVERY_PHY         (0x0024)
+#define MPI2_EVENT_SAS_QUIESCE                      (0x0025)
+#define MPI2_EVENT_SAS_NOTIFY_PRIMITIVE             (0x0026)
+#define MPI2_EVENT_TEMP_THRESHOLD                   (0x0027)
+#define MPI2_EVENT_HOST_MESSAGE                     (0x0028)
+#define MPI2_EVENT_POWER_PERFORMANCE_CHANGE         (0x0029)
+#define MPI2_EVENT_MIN_PRODUCT_SPECIFIC             (0x006E)
+#define MPI2_EVENT_MAX_PRODUCT_SPECIFIC             (0x007F)
+
+/*Log Entry Added Event data */
+
+/*the following structure matches MPI2_LOG_0_ENTRY in mpi2_cnfg.h */
+#define MPI2_EVENT_DATA_LOG_DATA_LENGTH             (0x1C)
+
+typedef struct _MPI2_EVENT_DATA_LOG_ENTRY_ADDED {
+	U64 TimeStamp;		/*0x00 */
+	U32 Reserved1;		/*0x08 */
+	U16 LogSequence;	/*0x0C */
+	U16 LogEntryQualifier;	/*0x0E */
+	U8 VP_ID;		/*0x10 */
+	U8 VF_ID;		/*0x11 */
+	U16 Reserved2;		/*0x12 */
+	U8 LogData[MPI2_EVENT_DATA_LOG_DATA_LENGTH];	/*0x14 */
+} MPI2_EVENT_DATA_LOG_ENTRY_ADDED,
+	*PTR_MPI2_EVENT_DATA_LOG_ENTRY_ADDED,
+	Mpi2EventDataLogEntryAdded_t,
+	*pMpi2EventDataLogEntryAdded_t;
+
+/*GPIO Interrupt Event data */
+
+typedef struct _MPI2_EVENT_DATA_GPIO_INTERRUPT {
+	U8 GPIONum;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+} MPI2_EVENT_DATA_GPIO_INTERRUPT,
+	*PTR_MPI2_EVENT_DATA_GPIO_INTERRUPT,
+	Mpi2EventDataGpioInterrupt_t,
+	*pMpi2EventDataGpioInterrupt_t;
+
+/*Temperature Threshold Event data */
+
+typedef struct _MPI2_EVENT_DATA_TEMPERATURE {
+	U16 Status;		/*0x00 */
+	U8 SensorNum;		/*0x02 */
+	U8 Reserved1;		/*0x03 */
+	U16 CurrentTemperature;	/*0x04 */
+	U16 Reserved2;		/*0x06 */
+	U32 Reserved3;		/*0x08 */
+	U32 Reserved4;		/*0x0C */
+} MPI2_EVENT_DATA_TEMPERATURE,
+	*PTR_MPI2_EVENT_DATA_TEMPERATURE,
+	Mpi2EventDataTemperature_t, *pMpi2EventDataTemperature_t;
+
+/*Temperature Threshold Event data Status bits */
+#define MPI2_EVENT_TEMPERATURE3_EXCEEDED            (0x0008)
+#define MPI2_EVENT_TEMPERATURE2_EXCEEDED            (0x0004)
+#define MPI2_EVENT_TEMPERATURE1_EXCEEDED            (0x0002)
+#define MPI2_EVENT_TEMPERATURE0_EXCEEDED            (0x0001)
+
+/*Host Message Event data */
+
+typedef struct _MPI2_EVENT_DATA_HOST_MESSAGE {
+	U8 SourceVF_ID;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+	U32 Reserved3;		/*0x04 */
+	U32 HostData[1];	/*0x08 */
+} MPI2_EVENT_DATA_HOST_MESSAGE, *PTR_MPI2_EVENT_DATA_HOST_MESSAGE,
+	Mpi2EventDataHostMessage_t, *pMpi2EventDataHostMessage_t;
+
+/*Power Performance Change Event */
+
+typedef struct _MPI2_EVENT_DATA_POWER_PERF_CHANGE {
+	U8 CurrentPowerMode;	/*0x00 */
+	U8 PreviousPowerMode;	/*0x01 */
+	U16 Reserved1;		/*0x02 */
+} MPI2_EVENT_DATA_POWER_PERF_CHANGE,
+	*PTR_MPI2_EVENT_DATA_POWER_PERF_CHANGE,
+	Mpi2EventDataPowerPerfChange_t,
+	*pMpi2EventDataPowerPerfChange_t;
+
+/*defines for CurrentPowerMode and PreviousPowerMode fields */
+#define MPI2_EVENT_PM_INIT_MASK              (0xC0)
+#define MPI2_EVENT_PM_INIT_UNAVAILABLE       (0x00)
+#define MPI2_EVENT_PM_INIT_HOST              (0x40)
+#define MPI2_EVENT_PM_INIT_IO_UNIT           (0x80)
+#define MPI2_EVENT_PM_INIT_PCIE_DPA          (0xC0)
+
+#define MPI2_EVENT_PM_MODE_MASK              (0x07)
+#define MPI2_EVENT_PM_MODE_UNAVAILABLE       (0x00)
+#define MPI2_EVENT_PM_MODE_UNKNOWN           (0x01)
+#define MPI2_EVENT_PM_MODE_FULL_POWER        (0x04)
+#define MPI2_EVENT_PM_MODE_REDUCED_POWER     (0x05)
+#define MPI2_EVENT_PM_MODE_STANDBY           (0x06)
+
+/*Hard Reset Received Event data */
+
+typedef struct _MPI2_EVENT_DATA_HARD_RESET_RECEIVED {
+	U8 Reserved1;		/*0x00 */
+	U8 Port;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+} MPI2_EVENT_DATA_HARD_RESET_RECEIVED,
+	*PTR_MPI2_EVENT_DATA_HARD_RESET_RECEIVED,
+	Mpi2EventDataHardResetReceived_t,
+	*pMpi2EventDataHardResetReceived_t;
+
+/*Task Set Full Event data */
+/*  this event is obsolete */
+
+typedef struct _MPI2_EVENT_DATA_TASK_SET_FULL {
+	U16 DevHandle;		/*0x00 */
+	U16 CurrentDepth;	/*0x02 */
+} MPI2_EVENT_DATA_TASK_SET_FULL, *PTR_MPI2_EVENT_DATA_TASK_SET_FULL,
+	Mpi2EventDataTaskSetFull_t, *pMpi2EventDataTaskSetFull_t;
+
+/*SAS Device Status Change Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE {
+	U16 TaskTag;		/*0x00 */
+	U8 ReasonCode;		/*0x02 */
+	U8 PhysicalPort;	/*0x03 */
+	U8 ASC;			/*0x04 */
+	U8 ASCQ;		/*0x05 */
+	U16 DevHandle;		/*0x06 */
+	U32 Reserved2;		/*0x08 */
+	U64 SASAddress;		/*0x0C */
+	U8 LUN[8];		/*0x14 */
+} MPI2_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE,
+	*PTR_MPI2_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE,
+	Mpi2EventDataSasDeviceStatusChange_t,
+	*pMpi2EventDataSasDeviceStatusChange_t;
+
+/*SAS Device Status Change Event data ReasonCode values */
+#define MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA                           (0x05)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED                          (0x07)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET                (0x08)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL                  (0x09)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL              (0x0A)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL              (0x0B)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL                  (0x0C)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION                   (0x0D)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET               (0x0E)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL              (0x0F)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE                    (0x10)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY       (0x11)
+#define MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY   (0x12)
+
+/*Integrated RAID Operation Status Event data */
+
+typedef struct _MPI2_EVENT_DATA_IR_OPERATION_STATUS {
+	U16 VolDevHandle;	/*0x00 */
+	U16 Reserved1;		/*0x02 */
+	U8 RAIDOperation;	/*0x04 */
+	U8 PercentComplete;	/*0x05 */
+	U16 Reserved2;		/*0x06 */
+	U32 Resereved3;		/*0x08 */
+} MPI2_EVENT_DATA_IR_OPERATION_STATUS,
+	*PTR_MPI2_EVENT_DATA_IR_OPERATION_STATUS,
+	Mpi2EventDataIrOperationStatus_t,
+	*pMpi2EventDataIrOperationStatus_t;
+
+/*Integrated RAID Operation Status Event data RAIDOperation values */
+#define MPI2_EVENT_IR_RAIDOP_RESYNC                     (0x00)
+#define MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION       (0x01)
+#define MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK          (0x02)
+#define MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT            (0x03)
+#define MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT       (0x04)
+
+/*Integrated RAID Volume Event data */
+
+typedef struct _MPI2_EVENT_DATA_IR_VOLUME {
+	U16 VolDevHandle;	/*0x00 */
+	U8 ReasonCode;		/*0x02 */
+	U8 Reserved1;		/*0x03 */
+	U32 NewValue;		/*0x04 */
+	U32 PreviousValue;	/*0x08 */
+} MPI2_EVENT_DATA_IR_VOLUME, *PTR_MPI2_EVENT_DATA_IR_VOLUME,
+	Mpi2EventDataIrVolume_t, *pMpi2EventDataIrVolume_t;
+
+/*Integrated RAID Volume Event data ReasonCode values */
+#define MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED        (0x01)
+#define MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED    (0x02)
+#define MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED           (0x03)
+
+/*Integrated RAID Physical Disk Event data */
+
+typedef struct _MPI2_EVENT_DATA_IR_PHYSICAL_DISK {
+	U16 Reserved1;		/*0x00 */
+	U8 ReasonCode;		/*0x02 */
+	U8 PhysDiskNum;		/*0x03 */
+	U16 PhysDiskDevHandle;	/*0x04 */
+	U16 Reserved2;		/*0x06 */
+	U16 Slot;		/*0x08 */
+	U16 EnclosureHandle;	/*0x0A */
+	U32 NewValue;		/*0x0C */
+	U32 PreviousValue;	/*0x10 */
+} MPI2_EVENT_DATA_IR_PHYSICAL_DISK,
+	*PTR_MPI2_EVENT_DATA_IR_PHYSICAL_DISK,
+	Mpi2EventDataIrPhysicalDisk_t,
+	*pMpi2EventDataIrPhysicalDisk_t;
+
+/*Integrated RAID Physical Disk Event data ReasonCode values */
+#define MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED      (0x01)
+#define MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED  (0x02)
+#define MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED         (0x03)
+
+/*Integrated RAID Configuration Change List Event data */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check NumElements at runtime.
+ */
+#ifndef MPI2_EVENT_IR_CONFIG_ELEMENT_COUNT
+#define MPI2_EVENT_IR_CONFIG_ELEMENT_COUNT          (1)
+#endif
+
+typedef struct _MPI2_EVENT_IR_CONFIG_ELEMENT {
+	U16 ElementFlags;	/*0x00 */
+	U16 VolDevHandle;	/*0x02 */
+	U8 ReasonCode;		/*0x04 */
+	U8 PhysDiskNum;		/*0x05 */
+	U16 PhysDiskDevHandle;	/*0x06 */
+} MPI2_EVENT_IR_CONFIG_ELEMENT, *PTR_MPI2_EVENT_IR_CONFIG_ELEMENT,
+	Mpi2EventIrConfigElement_t, *pMpi2EventIrConfigElement_t;
+
+/*IR Configuration Change List Event data ElementFlags values */
+#define MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK   (0x000F)
+#define MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT      (0x0000)
+#define MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT (0x0001)
+#define MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT    (0x0002)
+
+/*IR Configuration Change List Event data ReasonCode values */
+#define MPI2_EVENT_IR_CHANGE_RC_ADDED                   (0x01)
+#define MPI2_EVENT_IR_CHANGE_RC_REMOVED                 (0x02)
+#define MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE               (0x03)
+#define MPI2_EVENT_IR_CHANGE_RC_HIDE                    (0x04)
+#define MPI2_EVENT_IR_CHANGE_RC_UNHIDE                  (0x05)
+#define MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED          (0x06)
+#define MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED          (0x07)
+#define MPI2_EVENT_IR_CHANGE_RC_PD_CREATED              (0x08)
+#define MPI2_EVENT_IR_CHANGE_RC_PD_DELETED              (0x09)
+
+typedef struct _MPI2_EVENT_DATA_IR_CONFIG_CHANGE_LIST {
+	U8 NumElements;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 Reserved2;		/*0x02 */
+	U8 ConfigNum;		/*0x03 */
+	U32 Flags;		/*0x04 */
+	MPI2_EVENT_IR_CONFIG_ELEMENT
+		ConfigElement[MPI2_EVENT_IR_CONFIG_ELEMENT_COUNT];/*0x08 */
+} MPI2_EVENT_DATA_IR_CONFIG_CHANGE_LIST,
+	*PTR_MPI2_EVENT_DATA_IR_CONFIG_CHANGE_LIST,
+	Mpi2EventDataIrConfigChangeList_t,
+	*pMpi2EventDataIrConfigChangeList_t;
+
+/*IR Configuration Change List Event data Flags values */
+#define MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG   (0x00000001)
+
+/*SAS Discovery Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_DISCOVERY {
+	U8 Flags;		/*0x00 */
+	U8 ReasonCode;		/*0x01 */
+	U8 PhysicalPort;	/*0x02 */
+	U8 Reserved1;		/*0x03 */
+	U32 DiscoveryStatus;	/*0x04 */
+} MPI2_EVENT_DATA_SAS_DISCOVERY,
+	*PTR_MPI2_EVENT_DATA_SAS_DISCOVERY,
+	Mpi2EventDataSasDiscovery_t, *pMpi2EventDataSasDiscovery_t;
+
+/*SAS Discovery Event data Flags values */
+#define MPI2_EVENT_SAS_DISC_DEVICE_CHANGE                   (0x02)
+#define MPI2_EVENT_SAS_DISC_IN_PROGRESS                     (0x01)
+
+/*SAS Discovery Event data ReasonCode values */
+#define MPI2_EVENT_SAS_DISC_RC_STARTED                      (0x01)
+#define MPI2_EVENT_SAS_DISC_RC_COMPLETED                    (0x02)
+
+/*SAS Discovery Event data DiscoveryStatus values */
+#define MPI2_EVENT_SAS_DISC_DS_MAX_ENCLOSURES_EXCEED            (0x80000000)
+#define MPI2_EVENT_SAS_DISC_DS_MAX_EXPANDERS_EXCEED             (0x40000000)
+#define MPI2_EVENT_SAS_DISC_DS_MAX_DEVICES_EXCEED               (0x20000000)
+#define MPI2_EVENT_SAS_DISC_DS_MAX_TOPO_PHYS_EXCEED             (0x10000000)
+#define MPI2_EVENT_SAS_DISC_DS_DOWNSTREAM_INITIATOR             (0x08000000)
+#define MPI2_EVENT_SAS_DISC_DS_MULTI_SUBTRACTIVE_SUBTRACTIVE    (0x00008000)
+#define MPI2_EVENT_SAS_DISC_DS_EXP_MULTI_SUBTRACTIVE            (0x00004000)
+#define MPI2_EVENT_SAS_DISC_DS_MULTI_PORT_DOMAIN                (0x00002000)
+#define MPI2_EVENT_SAS_DISC_DS_TABLE_TO_SUBTRACTIVE_LINK        (0x00001000)
+#define MPI2_EVENT_SAS_DISC_DS_UNSUPPORTED_DEVICE               (0x00000800)
+#define MPI2_EVENT_SAS_DISC_DS_TABLE_LINK                       (0x00000400)
+#define MPI2_EVENT_SAS_DISC_DS_SUBTRACTIVE_LINK                 (0x00000200)
+#define MPI2_EVENT_SAS_DISC_DS_SMP_CRC_ERROR                    (0x00000100)
+#define MPI2_EVENT_SAS_DISC_DS_SMP_FUNCTION_FAILED              (0x00000080)
+#define MPI2_EVENT_SAS_DISC_DS_INDEX_NOT_EXIST                  (0x00000040)
+#define MPI2_EVENT_SAS_DISC_DS_OUT_ROUTE_ENTRIES                (0x00000020)
+#define MPI2_EVENT_SAS_DISC_DS_SMP_TIMEOUT                      (0x00000010)
+#define MPI2_EVENT_SAS_DISC_DS_MULTIPLE_PORTS                   (0x00000004)
+#define MPI2_EVENT_SAS_DISC_DS_UNADDRESSABLE_DEVICE             (0x00000002)
+#define MPI2_EVENT_SAS_DISC_DS_LOOP_DETECTED                    (0x00000001)
+
+/*SAS Broadcast Primitive Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_BROADCAST_PRIMITIVE {
+	U8 PhyNum;		/*0x00 */
+	U8 Port;		/*0x01 */
+	U8 PortWidth;		/*0x02 */
+	U8 Primitive;		/*0x03 */
+} MPI2_EVENT_DATA_SAS_BROADCAST_PRIMITIVE,
+	*PTR_MPI2_EVENT_DATA_SAS_BROADCAST_PRIMITIVE,
+	Mpi2EventDataSasBroadcastPrimitive_t,
+	*pMpi2EventDataSasBroadcastPrimitive_t;
+
+/*defines for the Primitive field */
+#define MPI2_EVENT_PRIMITIVE_CHANGE                         (0x01)
+#define MPI2_EVENT_PRIMITIVE_SES                            (0x02)
+#define MPI2_EVENT_PRIMITIVE_EXPANDER                       (0x03)
+#define MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT             (0x04)
+#define MPI2_EVENT_PRIMITIVE_RESERVED3                      (0x05)
+#define MPI2_EVENT_PRIMITIVE_RESERVED4                      (0x06)
+#define MPI2_EVENT_PRIMITIVE_CHANGE0_RESERVED               (0x07)
+#define MPI2_EVENT_PRIMITIVE_CHANGE1_RESERVED               (0x08)
+
+/*SAS Notify Primitive Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_NOTIFY_PRIMITIVE {
+	U8 PhyNum;		/*0x00 */
+	U8 Port;		/*0x01 */
+	U8 Reserved1;		/*0x02 */
+	U8 Primitive;		/*0x03 */
+} MPI2_EVENT_DATA_SAS_NOTIFY_PRIMITIVE,
+	*PTR_MPI2_EVENT_DATA_SAS_NOTIFY_PRIMITIVE,
+	Mpi2EventDataSasNotifyPrimitive_t,
+	*pMpi2EventDataSasNotifyPrimitive_t;
+
+/*defines for the Primitive field */
+#define MPI2_EVENT_NOTIFY_ENABLE_SPINUP                     (0x01)
+#define MPI2_EVENT_NOTIFY_POWER_LOSS_EXPECTED               (0x02)
+#define MPI2_EVENT_NOTIFY_RESERVED1                         (0x03)
+#define MPI2_EVENT_NOTIFY_RESERVED2                         (0x04)
+
+/*SAS Initiator Device Status Change Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_INIT_DEV_STATUS_CHANGE {
+	U8 ReasonCode;		/*0x00 */
+	U8 PhysicalPort;	/*0x01 */
+	U16 DevHandle;		/*0x02 */
+	U64 SASAddress;		/*0x04 */
+} MPI2_EVENT_DATA_SAS_INIT_DEV_STATUS_CHANGE,
+	*PTR_MPI2_EVENT_DATA_SAS_INIT_DEV_STATUS_CHANGE,
+	Mpi2EventDataSasInitDevStatusChange_t,
+	*pMpi2EventDataSasInitDevStatusChange_t;
+
+/*SAS Initiator Device Status Change event ReasonCode values */
+#define MPI2_EVENT_SAS_INIT_RC_ADDED                (0x01)
+#define MPI2_EVENT_SAS_INIT_RC_NOT_RESPONDING       (0x02)
+
+/*SAS Initiator Device Table Overflow Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_INIT_TABLE_OVERFLOW {
+	U16 MaxInit;		/*0x00 */
+	U16 CurrentInit;	/*0x02 */
+	U64 SASAddress;		/*0x04 */
+} MPI2_EVENT_DATA_SAS_INIT_TABLE_OVERFLOW,
+	*PTR_MPI2_EVENT_DATA_SAS_INIT_TABLE_OVERFLOW,
+	Mpi2EventDataSasInitTableOverflow_t,
+	*pMpi2EventDataSasInitTableOverflow_t;
+
+/*SAS Topology Change List Event data */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check NumEntries at runtime.
+ */
+#ifndef MPI2_EVENT_SAS_TOPO_PHY_COUNT
+#define MPI2_EVENT_SAS_TOPO_PHY_COUNT           (1)
+#endif
+
+typedef struct _MPI2_EVENT_SAS_TOPO_PHY_ENTRY {
+	U16 AttachedDevHandle;	/*0x00 */
+	U8 LinkRate;		/*0x02 */
+	U8 PhyStatus;		/*0x03 */
+} MPI2_EVENT_SAS_TOPO_PHY_ENTRY, *PTR_MPI2_EVENT_SAS_TOPO_PHY_ENTRY,
+	Mpi2EventSasTopoPhyEntry_t, *pMpi2EventSasTopoPhyEntry_t;
+
+typedef struct _MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST {
+	U16 EnclosureHandle;	/*0x00 */
+	U16 ExpanderDevHandle;	/*0x02 */
+	U8 NumPhys;		/*0x04 */
+	U8 Reserved1;		/*0x05 */
+	U16 Reserved2;		/*0x06 */
+	U8 NumEntries;		/*0x08 */
+	U8 StartPhyNum;		/*0x09 */
+	U8 ExpStatus;		/*0x0A */
+	U8 PhysicalPort;	/*0x0B */
+	MPI2_EVENT_SAS_TOPO_PHY_ENTRY
+	PHY[MPI2_EVENT_SAS_TOPO_PHY_COUNT];	/*0x0C */
+} MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST,
+	*PTR_MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST,
+	Mpi2EventDataSasTopologyChangeList_t,
+	*pMpi2EventDataSasTopologyChangeList_t;
+
+/*values for the ExpStatus field */
+#define MPI2_EVENT_SAS_TOPO_ES_NO_EXPANDER                  (0x00)
+#define MPI2_EVENT_SAS_TOPO_ES_ADDED                        (0x01)
+#define MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING               (0x02)
+#define MPI2_EVENT_SAS_TOPO_ES_RESPONDING                   (0x03)
+#define MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING         (0x04)
+
+/*defines for the LinkRate field */
+#define MPI2_EVENT_SAS_TOPO_LR_CURRENT_MASK                 (0xF0)
+#define MPI2_EVENT_SAS_TOPO_LR_CURRENT_SHIFT                (4)
+#define MPI2_EVENT_SAS_TOPO_LR_PREV_MASK                    (0x0F)
+#define MPI2_EVENT_SAS_TOPO_LR_PREV_SHIFT                   (0)
+
+#define MPI2_EVENT_SAS_TOPO_LR_UNKNOWN_LINK_RATE            (0x00)
+#define MPI2_EVENT_SAS_TOPO_LR_PHY_DISABLED                 (0x01)
+#define MPI2_EVENT_SAS_TOPO_LR_NEGOTIATION_FAILED           (0x02)
+#define MPI2_EVENT_SAS_TOPO_LR_SATA_OOB_COMPLETE            (0x03)
+#define MPI2_EVENT_SAS_TOPO_LR_PORT_SELECTOR                (0x04)
+#define MPI2_EVENT_SAS_TOPO_LR_SMP_RESET_IN_PROGRESS        (0x05)
+#define MPI2_EVENT_SAS_TOPO_LR_UNSUPPORTED_PHY              (0x06)
+#define MPI2_EVENT_SAS_TOPO_LR_RATE_1_5                     (0x08)
+#define MPI2_EVENT_SAS_TOPO_LR_RATE_3_0                     (0x09)
+#define MPI2_EVENT_SAS_TOPO_LR_RATE_6_0                     (0x0A)
+#define MPI25_EVENT_SAS_TOPO_LR_RATE_12_0                   (0x0B)
+
+/*values for the PhyStatus field */
+#define MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT                (0x80)
+#define MPI2_EVENT_SAS_TOPO_PS_MULTIPLEX_CHANGE             (0x10)
+/*values for the PhyStatus ReasonCode sub-field */
+#define MPI2_EVENT_SAS_TOPO_RC_MASK                         (0x0F)
+#define MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED                   (0x01)
+#define MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING          (0x02)
+#define MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED                  (0x03)
+#define MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE                    (0x04)
+#define MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING         (0x05)
+
+/*SAS Enclosure Device Status Change Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_ENCL_DEV_STATUS_CHANGE {
+	U16 EnclosureHandle;	/*0x00 */
+	U8 ReasonCode;		/*0x02 */
+	U8 PhysicalPort;	/*0x03 */
+	U64 EnclosureLogicalID;	/*0x04 */
+	U16 NumSlots;		/*0x0C */
+	U16 StartSlot;		/*0x0E */
+	U32 PhyBits;		/*0x10 */
+} MPI2_EVENT_DATA_SAS_ENCL_DEV_STATUS_CHANGE,
+	*PTR_MPI2_EVENT_DATA_SAS_ENCL_DEV_STATUS_CHANGE,
+	Mpi2EventDataSasEnclDevStatusChange_t,
+	*pMpi2EventDataSasEnclDevStatusChange_t;
+
+/*SAS Enclosure Device Status Change event ReasonCode values */
+#define MPI2_EVENT_SAS_ENCL_RC_ADDED                (0x01)
+#define MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING       (0x02)
+
+/*SAS PHY Counter Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_PHY_COUNTER {
+	U64 TimeStamp;		/*0x00 */
+	U32 Reserved1;		/*0x08 */
+	U8 PhyEventCode;	/*0x0C */
+	U8 PhyNum;		/*0x0D */
+	U16 Reserved2;		/*0x0E */
+	U32 PhyEventInfo;	/*0x10 */
+	U8 CounterType;		/*0x14 */
+	U8 ThresholdWindow;	/*0x15 */
+	U8 TimeUnits;		/*0x16 */
+	U8 Reserved3;		/*0x17 */
+	U32 EventThreshold;	/*0x18 */
+	U16 ThresholdFlags;	/*0x1C */
+	U16 Reserved4;		/*0x1E */
+} MPI2_EVENT_DATA_SAS_PHY_COUNTER,
+	*PTR_MPI2_EVENT_DATA_SAS_PHY_COUNTER,
+	Mpi2EventDataSasPhyCounter_t,
+	*pMpi2EventDataSasPhyCounter_t;
+
+/*use MPI2_SASPHY3_EVENT_CODE_ values from mpi2_cnfg.h
+ *for the PhyEventCode field */
+
+/*use MPI2_SASPHY3_COUNTER_TYPE_ values from mpi2_cnfg.h
+ *for the CounterType field */
+
+/*use MPI2_SASPHY3_TIME_UNITS_ values from mpi2_cnfg.h
+ *for the TimeUnits field */
+
+/*use MPI2_SASPHY3_TFLAGS_ values from mpi2_cnfg.h
+ *for the ThresholdFlags field */
+
+/*SAS Quiesce Event data */
+
+typedef struct _MPI2_EVENT_DATA_SAS_QUIESCE {
+	U8 ReasonCode;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+	U32 Reserved3;		/*0x04 */
+} MPI2_EVENT_DATA_SAS_QUIESCE,
+	*PTR_MPI2_EVENT_DATA_SAS_QUIESCE,
+	Mpi2EventDataSasQuiesce_t, *pMpi2EventDataSasQuiesce_t;
+
+/*SAS Quiesce Event data ReasonCode values */
+#define MPI2_EVENT_SAS_QUIESCE_RC_STARTED                   (0x01)
+#define MPI2_EVENT_SAS_QUIESCE_RC_COMPLETED                 (0x02)
+
+/*Host Based Discovery Phy Event data */
+
+typedef struct _MPI2_EVENT_HBD_PHY_SAS {
+	U8 Flags;		/*0x00 */
+	U8 NegotiatedLinkRate;	/*0x01 */
+	U8 PhyNum;		/*0x02 */
+	U8 PhysicalPort;	/*0x03 */
+	U32 Reserved1;		/*0x04 */
+	U8 InitialFrame[28];	/*0x08 */
+} MPI2_EVENT_HBD_PHY_SAS, *PTR_MPI2_EVENT_HBD_PHY_SAS,
+	Mpi2EventHbdPhySas_t, *pMpi2EventHbdPhySas_t;
+
+/*values for the Flags field */
+#define MPI2_EVENT_HBD_SAS_FLAGS_FRAME_VALID        (0x02)
+#define MPI2_EVENT_HBD_SAS_FLAGS_SATA_FRAME         (0x01)
+
+/*use MPI2_SAS_NEG_LINK_RATE_ defines from mpi2_cnfg.h
+ *for the NegotiatedLinkRate field */
+
+typedef union _MPI2_EVENT_HBD_DESCRIPTOR {
+	MPI2_EVENT_HBD_PHY_SAS Sas;
+} MPI2_EVENT_HBD_DESCRIPTOR, *PTR_MPI2_EVENT_HBD_DESCRIPTOR,
+	Mpi2EventHbdDescriptor_t, *pMpi2EventHbdDescriptor_t;
+
+typedef struct _MPI2_EVENT_DATA_HBD_PHY {
+	U8 DescriptorType;	/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+	U32 Reserved3;		/*0x04 */
+	MPI2_EVENT_HBD_DESCRIPTOR Descriptor;	/*0x08 */
+} MPI2_EVENT_DATA_HBD_PHY, *PTR_MPI2_EVENT_DATA_HBD_PHY,
+	Mpi2EventDataHbdPhy_t,
+	*pMpi2EventDataMpi2EventDataHbdPhy_t;
+
+/*values for the DescriptorType field */
+#define MPI2_EVENT_HBD_DT_SAS               (0x01)
+
+/****************************************************************************
+* EventAck message
+****************************************************************************/
+
+/*EventAck Request message */
+typedef struct _MPI2_EVENT_ACK_REQUEST {
+	U16 Reserved1;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Event;		/*0x0C */
+	U16 Reserved5;		/*0x0E */
+	U32 EventContext;	/*0x10 */
+} MPI2_EVENT_ACK_REQUEST, *PTR_MPI2_EVENT_ACK_REQUEST,
+	Mpi2EventAckRequest_t, *pMpi2EventAckRequest_t;
+
+/*EventAck Reply message */
+typedef struct _MPI2_EVENT_ACK_REPLY {
+	U16 Reserved1;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_EVENT_ACK_REPLY, *PTR_MPI2_EVENT_ACK_REPLY,
+	Mpi2EventAckReply_t, *pMpi2EventAckReply_t;
+
+/****************************************************************************
+* SendHostMessage message
+****************************************************************************/
+
+/*SendHostMessage Request message */
+typedef struct _MPI2_SEND_HOST_MESSAGE_REQUEST {
+	U16 HostDataLength;	/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved1;		/*0x04 */
+	U8 Reserved2;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U8 Reserved4;		/*0x0C */
+	U8 DestVF_ID;		/*0x0D */
+	U16 Reserved5;		/*0x0E */
+	U32 Reserved6;		/*0x10 */
+	U32 Reserved7;		/*0x14 */
+	U32 Reserved8;		/*0x18 */
+	U32 Reserved9;		/*0x1C */
+	U32 Reserved10;		/*0x20 */
+	U32 HostData[1];	/*0x24 */
+} MPI2_SEND_HOST_MESSAGE_REQUEST,
+	*PTR_MPI2_SEND_HOST_MESSAGE_REQUEST,
+	Mpi2SendHostMessageRequest_t,
+	*pMpi2SendHostMessageRequest_t;
+
+/*SendHostMessage Reply message */
+typedef struct _MPI2_SEND_HOST_MESSAGE_REPLY {
+	U16 HostDataLength;	/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved1;		/*0x04 */
+	U8 Reserved2;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U16 Reserved4;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_SEND_HOST_MESSAGE_REPLY, *PTR_MPI2_SEND_HOST_MESSAGE_REPLY,
+	Mpi2SendHostMessageReply_t, *pMpi2SendHostMessageReply_t;
+
+/****************************************************************************
+* FWDownload message
+****************************************************************************/
+
+/*MPI v2.0 FWDownload Request message */
+typedef struct _MPI2_FW_DOWNLOAD_REQUEST {
+	U8 ImageType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 TotalImageSize;	/*0x0C */
+	U32 Reserved5;		/*0x10 */
+	MPI2_MPI_SGE_UNION SGL;	/*0x14 */
+} MPI2_FW_DOWNLOAD_REQUEST, *PTR_MPI2_FW_DOWNLOAD_REQUEST,
+	Mpi2FWDownloadRequest, *pMpi2FWDownloadRequest;
+
+#define MPI2_FW_DOWNLOAD_MSGFLGS_LAST_SEGMENT   (0x01)
+
+#define MPI2_FW_DOWNLOAD_ITYPE_FW                   (0x01)
+#define MPI2_FW_DOWNLOAD_ITYPE_BIOS                 (0x02)
+#define MPI2_FW_DOWNLOAD_ITYPE_MANUFACTURING        (0x06)
+#define MPI2_FW_DOWNLOAD_ITYPE_CONFIG_1             (0x07)
+#define MPI2_FW_DOWNLOAD_ITYPE_CONFIG_2             (0x08)
+#define MPI2_FW_DOWNLOAD_ITYPE_MEGARAID             (0x09)
+#define MPI2_FW_DOWNLOAD_ITYPE_COMPLETE             (0x0A)
+#define MPI2_FW_DOWNLOAD_ITYPE_COMMON_BOOT_BLOCK    (0x0B)
+#define MPI2_FW_DOWNLOAD_ITYPE_MIN_PRODUCT_SPECIFIC (0xF0)
+
+/*MPI v2.0 FWDownload TransactionContext Element */
+typedef struct _MPI2_FW_DOWNLOAD_TCSGE {
+	U8 Reserved1;		/*0x00 */
+	U8 ContextSize;		/*0x01 */
+	U8 DetailsLength;	/*0x02 */
+	U8 Flags;		/*0x03 */
+	U32 Reserved2;		/*0x04 */
+	U32 ImageOffset;	/*0x08 */
+	U32 ImageSize;		/*0x0C */
+} MPI2_FW_DOWNLOAD_TCSGE, *PTR_MPI2_FW_DOWNLOAD_TCSGE,
+	Mpi2FWDownloadTCSGE_t, *pMpi2FWDownloadTCSGE_t;
+
+/*MPI v2.5 FWDownload Request message */
+typedef struct _MPI25_FW_DOWNLOAD_REQUEST {
+	U8 ImageType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 TotalImageSize;	/*0x0C */
+	U32 Reserved5;		/*0x10 */
+	U32 Reserved6;		/*0x14 */
+	U32 ImageOffset;	/*0x18 */
+	U32 ImageSize;		/*0x1C */
+	MPI25_SGE_IO_UNION SGL;	/*0x20 */
+} MPI25_FW_DOWNLOAD_REQUEST, *PTR_MPI25_FW_DOWNLOAD_REQUEST,
+	Mpi25FWDownloadRequest, *pMpi25FWDownloadRequest;
+
+/*FWDownload Reply message */
+typedef struct _MPI2_FW_DOWNLOAD_REPLY {
+	U8 ImageType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_FW_DOWNLOAD_REPLY, *PTR_MPI2_FW_DOWNLOAD_REPLY,
+	Mpi2FWDownloadReply_t, *pMpi2FWDownloadReply_t;
+
+/****************************************************************************
+* FWUpload message
+****************************************************************************/
+
+/*MPI v2.0 FWUpload Request message */
+typedef struct _MPI2_FW_UPLOAD_REQUEST {
+	U8 ImageType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 Reserved5;		/*0x0C */
+	U32 Reserved6;		/*0x10 */
+	MPI2_MPI_SGE_UNION SGL;	/*0x14 */
+} MPI2_FW_UPLOAD_REQUEST, *PTR_MPI2_FW_UPLOAD_REQUEST,
+	Mpi2FWUploadRequest_t, *pMpi2FWUploadRequest_t;
+
+#define MPI2_FW_UPLOAD_ITYPE_FW_CURRENT         (0x00)
+#define MPI2_FW_UPLOAD_ITYPE_FW_FLASH           (0x01)
+#define MPI2_FW_UPLOAD_ITYPE_BIOS_FLASH         (0x02)
+#define MPI2_FW_UPLOAD_ITYPE_FW_BACKUP          (0x05)
+#define MPI2_FW_UPLOAD_ITYPE_MANUFACTURING      (0x06)
+#define MPI2_FW_UPLOAD_ITYPE_CONFIG_1           (0x07)
+#define MPI2_FW_UPLOAD_ITYPE_CONFIG_2           (0x08)
+#define MPI2_FW_UPLOAD_ITYPE_MEGARAID           (0x09)
+#define MPI2_FW_UPLOAD_ITYPE_COMPLETE           (0x0A)
+#define MPI2_FW_UPLOAD_ITYPE_COMMON_BOOT_BLOCK  (0x0B)
+
+/*MPI v2.0 FWUpload TransactionContext Element */
+typedef struct _MPI2_FW_UPLOAD_TCSGE {
+	U8 Reserved1;		/*0x00 */
+	U8 ContextSize;		/*0x01 */
+	U8 DetailsLength;	/*0x02 */
+	U8 Flags;		/*0x03 */
+	U32 Reserved2;		/*0x04 */
+	U32 ImageOffset;	/*0x08 */
+	U32 ImageSize;		/*0x0C */
+} MPI2_FW_UPLOAD_TCSGE, *PTR_MPI2_FW_UPLOAD_TCSGE,
+	Mpi2FWUploadTCSGE_t, *pMpi2FWUploadTCSGE_t;
+
+/*MPI v2.5 FWUpload Request message */
+typedef struct _MPI25_FW_UPLOAD_REQUEST {
+	U8 ImageType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 Reserved5;		/*0x0C */
+	U32 Reserved6;		/*0x10 */
+	U32 Reserved7;		/*0x14 */
+	U32 ImageOffset;	/*0x18 */
+	U32 ImageSize;		/*0x1C */
+	MPI25_SGE_IO_UNION SGL;	/*0x20 */
+} MPI25_FW_UPLOAD_REQUEST, *PTR_MPI25_FW_UPLOAD_REQUEST,
+	Mpi25FWUploadRequest_t, *pMpi25FWUploadRequest_t;
+
+/*FWUpload Reply message */
+typedef struct _MPI2_FW_UPLOAD_REPLY {
+	U8 ImageType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U32 ActualImageSize;	/*0x14 */
+} MPI2_FW_UPLOAD_REPLY, *PTR_MPI2_FW_UPLOAD_REPLY,
+	Mpi2FWUploadReply_t, *pMPi2FWUploadReply_t;
+
+/*FW Image Header */
+typedef struct _MPI2_FW_IMAGE_HEADER {
+	U32 Signature;		/*0x00 */
+	U32 Signature0;		/*0x04 */
+	U32 Signature1;		/*0x08 */
+	U32 Signature2;		/*0x0C */
+	MPI2_VERSION_UNION MPIVersion;	/*0x10 */
+	MPI2_VERSION_UNION FWVersion;	/*0x14 */
+	MPI2_VERSION_UNION NVDATAVersion;	/*0x18 */
+	MPI2_VERSION_UNION PackageVersion;	/*0x1C */
+	U16 VendorID;		/*0x20 */
+	U16 ProductID;		/*0x22 */
+	U16 ProtocolFlags;	/*0x24 */
+	U16 Reserved26;		/*0x26 */
+	U32 IOCCapabilities;	/*0x28 */
+	U32 ImageSize;		/*0x2C */
+	U32 NextImageHeaderOffset;	/*0x30 */
+	U32 Checksum;		/*0x34 */
+	U32 Reserved38;		/*0x38 */
+	U32 Reserved3C;		/*0x3C */
+	U32 Reserved40;		/*0x40 */
+	U32 Reserved44;		/*0x44 */
+	U32 Reserved48;		/*0x48 */
+	U32 Reserved4C;		/*0x4C */
+	U32 Reserved50;		/*0x50 */
+	U32 Reserved54;		/*0x54 */
+	U32 Reserved58;		/*0x58 */
+	U32 Reserved5C;		/*0x5C */
+	U32 Reserved60;		/*0x60 */
+	U32 FirmwareVersionNameWhat;	/*0x64 */
+	U8 FirmwareVersionName[32];	/*0x68 */
+	U32 VendorNameWhat;	/*0x88 */
+	U8 VendorName[32];	/*0x8C */
+	U32 PackageNameWhat;	/*0x88 */
+	U8 PackageName[32];	/*0x8C */
+	U32 ReservedD0;		/*0xD0 */
+	U32 ReservedD4;		/*0xD4 */
+	U32 ReservedD8;		/*0xD8 */
+	U32 ReservedDC;		/*0xDC */
+	U32 ReservedE0;		/*0xE0 */
+	U32 ReservedE4;		/*0xE4 */
+	U32 ReservedE8;		/*0xE8 */
+	U32 ReservedEC;		/*0xEC */
+	U32 ReservedF0;		/*0xF0 */
+	U32 ReservedF4;		/*0xF4 */
+	U32 ReservedF8;		/*0xF8 */
+	U32 ReservedFC;		/*0xFC */
+} MPI2_FW_IMAGE_HEADER, *PTR_MPI2_FW_IMAGE_HEADER,
+	Mpi2FWImageHeader_t, *pMpi2FWImageHeader_t;
+
+/*Signature field */
+#define MPI2_FW_HEADER_SIGNATURE_OFFSET         (0x00)
+#define MPI2_FW_HEADER_SIGNATURE_MASK           (0xFF000000)
+#define MPI2_FW_HEADER_SIGNATURE                (0xEA000000)
+
+/*Signature0 field */
+#define MPI2_FW_HEADER_SIGNATURE0_OFFSET        (0x04)
+#define MPI2_FW_HEADER_SIGNATURE0               (0x5AFAA55A)
+
+/*Signature1 field */
+#define MPI2_FW_HEADER_SIGNATURE1_OFFSET        (0x08)
+#define MPI2_FW_HEADER_SIGNATURE1               (0xA55AFAA5)
+
+/*Signature2 field */
+#define MPI2_FW_HEADER_SIGNATURE2_OFFSET        (0x0C)
+#define MPI2_FW_HEADER_SIGNATURE2               (0x5AA55AFA)
+
+/*defines for using the ProductID field */
+#define MPI2_FW_HEADER_PID_TYPE_MASK            (0xF000)
+#define MPI2_FW_HEADER_PID_TYPE_SAS             (0x2000)
+
+#define MPI2_FW_HEADER_PID_PROD_MASK                    (0x0F00)
+#define MPI2_FW_HEADER_PID_PROD_A                       (0x0000)
+#define MPI2_FW_HEADER_PID_PROD_TARGET_INITIATOR_SCSI   (0x0200)
+#define MPI2_FW_HEADER_PID_PROD_IR_SCSI                 (0x0700)
+
+#define MPI2_FW_HEADER_PID_FAMILY_MASK          (0x00FF)
+/*SAS ProductID Family bits */
+#define MPI2_FW_HEADER_PID_FAMILY_2108_SAS      (0x0013)
+#define MPI2_FW_HEADER_PID_FAMILY_2208_SAS      (0x0014)
+#define MPI25_FW_HEADER_PID_FAMILY_3108_SAS     (0x0021)
+
+/*use MPI2_IOCFACTS_PROTOCOL_ defines for ProtocolFlags field */
+
+/*use MPI2_IOCFACTS_CAPABILITY_ defines for IOCCapabilities field */
+
+#define MPI2_FW_HEADER_IMAGESIZE_OFFSET         (0x2C)
+#define MPI2_FW_HEADER_NEXTIMAGE_OFFSET         (0x30)
+#define MPI2_FW_HEADER_VERNMHWAT_OFFSET         (0x64)
+
+#define MPI2_FW_HEADER_WHAT_SIGNATURE           (0x29232840)
+
+#define MPI2_FW_HEADER_SIZE                     (0x100)
+
+/*Extended Image Header */
+typedef struct _MPI2_EXT_IMAGE_HEADER {
+	U8 ImageType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+	U32 Checksum;		/*0x04 */
+	U32 ImageSize;		/*0x08 */
+	U32 NextImageHeaderOffset;	/*0x0C */
+	U32 PackageVersion;	/*0x10 */
+	U32 Reserved3;		/*0x14 */
+	U32 Reserved4;		/*0x18 */
+	U32 Reserved5;		/*0x1C */
+	U8 IdentifyString[32];	/*0x20 */
+} MPI2_EXT_IMAGE_HEADER, *PTR_MPI2_EXT_IMAGE_HEADER,
+	Mpi2ExtImageHeader_t, *pMpi2ExtImageHeader_t;
+
+/*useful offsets */
+#define MPI2_EXT_IMAGE_IMAGETYPE_OFFSET         (0x00)
+#define MPI2_EXT_IMAGE_IMAGESIZE_OFFSET         (0x08)
+#define MPI2_EXT_IMAGE_NEXTIMAGE_OFFSET         (0x0C)
+
+#define MPI2_EXT_IMAGE_HEADER_SIZE              (0x40)
+
+/*defines for the ImageType field */
+#define MPI2_EXT_IMAGE_TYPE_UNSPECIFIED             (0x00)
+#define MPI2_EXT_IMAGE_TYPE_FW                      (0x01)
+#define MPI2_EXT_IMAGE_TYPE_NVDATA                  (0x03)
+#define MPI2_EXT_IMAGE_TYPE_BOOTLOADER              (0x04)
+#define MPI2_EXT_IMAGE_TYPE_INITIALIZATION          (0x05)
+#define MPI2_EXT_IMAGE_TYPE_FLASH_LAYOUT            (0x06)
+#define MPI2_EXT_IMAGE_TYPE_SUPPORTED_DEVICES       (0x07)
+#define MPI2_EXT_IMAGE_TYPE_MEGARAID                (0x08)
+#define MPI2_EXT_IMAGE_TYPE_MIN_PRODUCT_SPECIFIC    (0x80)
+#define MPI2_EXT_IMAGE_TYPE_MAX_PRODUCT_SPECIFIC    (0xFF)
+
+#define MPI2_EXT_IMAGE_TYPE_MAX (MPI2_EXT_IMAGE_TYPE_MAX_PRODUCT_SPECIFIC)
+
+/*FLASH Layout Extended Image Data */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check RegionsPerLayout at runtime.
+ */
+#ifndef MPI2_FLASH_NUMBER_OF_REGIONS
+#define MPI2_FLASH_NUMBER_OF_REGIONS        (1)
+#endif
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check NumberOfLayouts at runtime.
+ */
+#ifndef MPI2_FLASH_NUMBER_OF_LAYOUTS
+#define MPI2_FLASH_NUMBER_OF_LAYOUTS        (1)
+#endif
+
+typedef struct _MPI2_FLASH_REGION {
+	U8 RegionType;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+	U32 RegionOffset;	/*0x04 */
+	U32 RegionSize;		/*0x08 */
+	U32 Reserved3;		/*0x0C */
+} MPI2_FLASH_REGION, *PTR_MPI2_FLASH_REGION,
+	Mpi2FlashRegion_t, *pMpi2FlashRegion_t;
+
+typedef struct _MPI2_FLASH_LAYOUT {
+	U32 FlashSize;		/*0x00 */
+	U32 Reserved1;		/*0x04 */
+	U32 Reserved2;		/*0x08 */
+	U32 Reserved3;		/*0x0C */
+	MPI2_FLASH_REGION Region[MPI2_FLASH_NUMBER_OF_REGIONS];	/*0x10 */
+} MPI2_FLASH_LAYOUT, *PTR_MPI2_FLASH_LAYOUT,
+	Mpi2FlashLayout_t, *pMpi2FlashLayout_t;
+
+typedef struct _MPI2_FLASH_LAYOUT_DATA {
+	U8 ImageRevision;	/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 SizeOfRegion;	/*0x02 */
+	U8 Reserved2;		/*0x03 */
+	U16 NumberOfLayouts;	/*0x04 */
+	U16 RegionsPerLayout;	/*0x06 */
+	U16 MinimumSectorAlignment;	/*0x08 */
+	U16 Reserved3;		/*0x0A */
+	U32 Reserved4;		/*0x0C */
+	MPI2_FLASH_LAYOUT Layout[MPI2_FLASH_NUMBER_OF_LAYOUTS];	/*0x10 */
+} MPI2_FLASH_LAYOUT_DATA, *PTR_MPI2_FLASH_LAYOUT_DATA,
+	Mpi2FlashLayoutData_t, *pMpi2FlashLayoutData_t;
+
+/*defines for the RegionType field */
+#define MPI2_FLASH_REGION_UNUSED                (0x00)
+#define MPI2_FLASH_REGION_FIRMWARE              (0x01)
+#define MPI2_FLASH_REGION_BIOS                  (0x02)
+#define MPI2_FLASH_REGION_NVDATA                (0x03)
+#define MPI2_FLASH_REGION_FIRMWARE_BACKUP       (0x05)
+#define MPI2_FLASH_REGION_MFG_INFORMATION       (0x06)
+#define MPI2_FLASH_REGION_CONFIG_1              (0x07)
+#define MPI2_FLASH_REGION_CONFIG_2              (0x08)
+#define MPI2_FLASH_REGION_MEGARAID              (0x09)
+#define MPI2_FLASH_REGION_INIT                  (0x0A)
+
+/*ImageRevision */
+#define MPI2_FLASH_LAYOUT_IMAGE_REVISION        (0x00)
+
+/*Supported Devices Extended Image Data */
+
+/*
+ *Host code (drivers, BIOS, utilities, etc.) should leave this define set to
+ *one and check NumberOfDevices at runtime.
+ */
+#ifndef MPI2_SUPPORTED_DEVICES_IMAGE_NUM_DEVICES
+#define MPI2_SUPPORTED_DEVICES_IMAGE_NUM_DEVICES    (1)
+#endif
+
+typedef struct _MPI2_SUPPORTED_DEVICE {
+	U16 DeviceID;		/*0x00 */
+	U16 VendorID;		/*0x02 */
+	U16 DeviceIDMask;	/*0x04 */
+	U16 Reserved1;		/*0x06 */
+	U8 LowPCIRev;		/*0x08 */
+	U8 HighPCIRev;		/*0x09 */
+	U16 Reserved2;		/*0x0A */
+	U32 Reserved3;		/*0x0C */
+} MPI2_SUPPORTED_DEVICE, *PTR_MPI2_SUPPORTED_DEVICE,
+	Mpi2SupportedDevice_t, *pMpi2SupportedDevice_t;
+
+typedef struct _MPI2_SUPPORTED_DEVICES_DATA {
+	U8 ImageRevision;	/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 NumberOfDevices;	/*0x02 */
+	U8 Reserved2;		/*0x03 */
+	U32 Reserved3;		/*0x04 */
+	MPI2_SUPPORTED_DEVICE
+	SupportedDevice[MPI2_SUPPORTED_DEVICES_IMAGE_NUM_DEVICES];/*0x08 */
+} MPI2_SUPPORTED_DEVICES_DATA, *PTR_MPI2_SUPPORTED_DEVICES_DATA,
+	Mpi2SupportedDevicesData_t, *pMpi2SupportedDevicesData_t;
+
+/*ImageRevision */
+#define MPI2_SUPPORTED_DEVICES_IMAGE_REVISION   (0x00)
+
+/*Init Extended Image Data */
+
+typedef struct _MPI2_INIT_IMAGE_FOOTER {
+	U32 BootFlags;		/*0x00 */
+	U32 ImageSize;		/*0x04 */
+	U32 Signature0;		/*0x08 */
+	U32 Signature1;		/*0x0C */
+	U32 Signature2;		/*0x10 */
+	U32 ResetVector;	/*0x14 */
+} MPI2_INIT_IMAGE_FOOTER, *PTR_MPI2_INIT_IMAGE_FOOTER,
+	Mpi2InitImageFooter_t, *pMpi2InitImageFooter_t;
+
+/*defines for the BootFlags field */
+#define MPI2_INIT_IMAGE_BOOTFLAGS_OFFSET        (0x00)
+
+/*defines for the ImageSize field */
+#define MPI2_INIT_IMAGE_IMAGESIZE_OFFSET        (0x04)
+
+/*defines for the Signature0 field */
+#define MPI2_INIT_IMAGE_SIGNATURE0_OFFSET       (0x08)
+#define MPI2_INIT_IMAGE_SIGNATURE0              (0x5AA55AEA)
+
+/*defines for the Signature1 field */
+#define MPI2_INIT_IMAGE_SIGNATURE1_OFFSET       (0x0C)
+#define MPI2_INIT_IMAGE_SIGNATURE1              (0xA55AEAA5)
+
+/*defines for the Signature2 field */
+#define MPI2_INIT_IMAGE_SIGNATURE2_OFFSET       (0x10)
+#define MPI2_INIT_IMAGE_SIGNATURE2              (0x5AEAA55A)
+
+/*Signature fields as individual bytes */
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_0        (0xEA)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_1        (0x5A)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_2        (0xA5)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_3        (0x5A)
+
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_4        (0xA5)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_5        (0xEA)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_6        (0x5A)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_7        (0xA5)
+
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_8        (0x5A)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_9        (0xA5)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_A        (0xEA)
+#define MPI2_INIT_IMAGE_SIGNATURE_BYTE_B        (0x5A)
+
+/*defines for the ResetVector field */
+#define MPI2_INIT_IMAGE_RESETVECTOR_OFFSET      (0x14)
+
+/****************************************************************************
+* PowerManagementControl message
+****************************************************************************/
+
+/*PowerManagementControl Request message */
+typedef struct _MPI2_PWR_MGMT_CONTROL_REQUEST {
+	U8 Feature;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U8 Parameter1;		/*0x0C */
+	U8 Parameter2;		/*0x0D */
+	U8 Parameter3;		/*0x0E */
+	U8 Parameter4;		/*0x0F */
+	U32 Reserved5;		/*0x10 */
+	U32 Reserved6;		/*0x14 */
+} MPI2_PWR_MGMT_CONTROL_REQUEST, *PTR_MPI2_PWR_MGMT_CONTROL_REQUEST,
+	Mpi2PwrMgmtControlRequest_t, *pMpi2PwrMgmtControlRequest_t;
+
+/*defines for the Feature field */
+#define MPI2_PM_CONTROL_FEATURE_DA_PHY_POWER_COND       (0x01)
+#define MPI2_PM_CONTROL_FEATURE_PORT_WIDTH_MODULATION   (0x02)
+#define MPI2_PM_CONTROL_FEATURE_PCIE_LINK               (0x03)	/*obsolete */
+#define MPI2_PM_CONTROL_FEATURE_IOC_SPEED               (0x04)
+#define MPI2_PM_CONTROL_FEATURE_GLOBAL_PWR_MGMT_MODE    (0x05)
+#define MPI2_PM_CONTROL_FEATURE_MIN_PRODUCT_SPECIFIC    (0x80)
+#define MPI2_PM_CONTROL_FEATURE_MAX_PRODUCT_SPECIFIC    (0xFF)
+
+/*parameter usage for the MPI2_PM_CONTROL_FEATURE_DA_PHY_POWER_COND Feature */
+/*Parameter1 contains a PHY number */
+/*Parameter2 indicates power condition action using these defines */
+#define MPI2_PM_CONTROL_PARAM2_PARTIAL                  (0x01)
+#define MPI2_PM_CONTROL_PARAM2_SLUMBER                  (0x02)
+#define MPI2_PM_CONTROL_PARAM2_EXIT_PWR_MGMT            (0x03)
+/*Parameter3 and Parameter4 are reserved */
+
+/*parameter usage for the MPI2_PM_CONTROL_FEATURE_PORT_WIDTH_MODULATION
+ * Feature */
+/*Parameter1 contains SAS port width modulation group number */
+/*Parameter2 indicates IOC action using these defines */
+#define MPI2_PM_CONTROL_PARAM2_REQUEST_OWNERSHIP        (0x01)
+#define MPI2_PM_CONTROL_PARAM2_CHANGE_MODULATION        (0x02)
+#define MPI2_PM_CONTROL_PARAM2_RELINQUISH_OWNERSHIP     (0x03)
+/*Parameter3 indicates desired modulation level using these defines */
+#define MPI2_PM_CONTROL_PARAM3_25_PERCENT               (0x00)
+#define MPI2_PM_CONTROL_PARAM3_50_PERCENT               (0x01)
+#define MPI2_PM_CONTROL_PARAM3_75_PERCENT               (0x02)
+#define MPI2_PM_CONTROL_PARAM3_100_PERCENT              (0x03)
+/*Parameter4 is reserved */
+
+/*this next set (_PCIE_LINK) is obsolete */
+/*parameter usage for the MPI2_PM_CONTROL_FEATURE_PCIE_LINK Feature */
+/*Parameter1 indicates desired PCIe link speed using these defines */
+#define MPI2_PM_CONTROL_PARAM1_PCIE_2_5_GBPS            (0x00)	/*obsolete */
+#define MPI2_PM_CONTROL_PARAM1_PCIE_5_0_GBPS            (0x01)	/*obsolete */
+#define MPI2_PM_CONTROL_PARAM1_PCIE_8_0_GBPS            (0x02)	/*obsolete */
+/*Parameter2 indicates desired PCIe link width using these defines */
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X1                 (0x01)	/*obsolete */
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X2                 (0x02)	/*obsolete */
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X4                 (0x04)	/*obsolete */
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X8                 (0x08)	/*obsolete */
+/*Parameter3 and Parameter4 are reserved */
+
+/*parameter usage for the MPI2_PM_CONTROL_FEATURE_IOC_SPEED Feature */
+/*Parameter1 indicates desired IOC hardware clock speed using these defines */
+#define MPI2_PM_CONTROL_PARAM1_FULL_IOC_SPEED           (0x01)
+#define MPI2_PM_CONTROL_PARAM1_HALF_IOC_SPEED           (0x02)
+#define MPI2_PM_CONTROL_PARAM1_QUARTER_IOC_SPEED        (0x04)
+#define MPI2_PM_CONTROL_PARAM1_EIGHTH_IOC_SPEED         (0x08)
+/*Parameter2, Parameter3, and Parameter4 are reserved */
+
+/*parameter usage for the MPI2_PM_CONTROL_FEATURE_GLOBAL_PWR_MGMT_MODE Feature*/
+/*Parameter1 indicates host action regarding global power management mode */
+#define MPI2_PM_CONTROL_PARAM1_TAKE_CONTROL             (0x01)
+#define MPI2_PM_CONTROL_PARAM1_CHANGE_GLOBAL_MODE       (0x02)
+#define MPI2_PM_CONTROL_PARAM1_RELEASE_CONTROL          (0x03)
+/*Parameter2 indicates the requested global power management mode */
+#define MPI2_PM_CONTROL_PARAM2_FULL_PWR_PERF            (0x01)
+#define MPI2_PM_CONTROL_PARAM2_REDUCED_PWR_PERF         (0x08)
+#define MPI2_PM_CONTROL_PARAM2_STANDBY                  (0x40)
+/*Parameter3 and Parameter4 are reserved */
+
+/*PowerManagementControl Reply message */
+typedef struct _MPI2_PWR_MGMT_CONTROL_REPLY {
+	U8 Feature;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_PWR_MGMT_CONTROL_REPLY, *PTR_MPI2_PWR_MGMT_CONTROL_REPLY,
+	Mpi2PwrMgmtControlReply_t, *pMpi2PwrMgmtControlReply_t;
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_raid.h b/drivers/scsi/mpt3sas/mpi/mpi2_raid.h
new file mode 100644
index 000000000000..d1d9866cf300
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_raid.h
@@ -0,0 +1,346 @@
+/*
+ * Copyright (c) 2000-2012 LSI Corporation.
+ *
+ *
+ *          Name:  mpi2_raid.h
+ *         Title:  MPI Integrated RAID messages and structures
+ * Creation Date:  April 26, 2007
+ *
+ *   mpi2_raid.h Version:  02.00.08
+ *
+ * Version History
+ * ---------------
+ *
+ * Date      Version   Description
+ * --------  --------  ------------------------------------------------------
+ * 04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ * 08-31-07  02.00.01  Modifications to RAID Action request and reply,
+ *                     including the Actions and ActionData.
+ * 02-29-08  02.00.02  Added MPI2_RAID_ACTION_ADATA_DISABL_FULL_REBUILD.
+ * 05-21-08  02.00.03  Added MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS so that
+ *                     the PhysDisk array in MPI2_RAID_VOLUME_CREATION_STRUCT
+ *                     can be sized by the build environment.
+ * 07-30-09  02.00.04  Added proper define for the Use Default Settings bit of
+ *                     VolumeCreationFlags and marked the old one as obsolete.
+ * 05-12-10  02.00.05  Added MPI2_RAID_VOL_FLAGS_OP_MDC define.
+ * 08-24-10  02.00.06  Added MPI2_RAID_ACTION_COMPATIBILITY_CHECK along with
+ *                     related structures and defines.
+ *                     Added product-specific range to RAID Action values.
+ * 11-18-11  02.00.07  Incorporating additions for MPI v2.5.
+ * 02-06-12  02.00.08  Added MPI2_RAID_ACTION_PHYSDISK_HIDDEN.
+ * --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_RAID_H
+#define MPI2_RAID_H
+
+/*****************************************************************************
+*
+*              Integrated RAID Messages
+*
+*****************************************************************************/
+
+/****************************************************************************
+* RAID Action messages
+****************************************************************************/
+
+/*ActionDataWord defines for use with MPI2_RAID_ACTION_DELETE_VOLUME action */
+#define MPI2_RAID_ACTION_ADATA_KEEP_LBA0            (0x00000000)
+#define MPI2_RAID_ACTION_ADATA_ZERO_LBA0            (0x00000001)
+
+/*use MPI2_RAIDVOL0_SETTING_ defines from mpi2_cnfg.h for
+ *MPI2_RAID_ACTION_CHANGE_VOL_WRITE_CACHE action */
+
+/*ActionDataWord defines for use with
+ *MPI2_RAID_ACTION_DISABLE_ALL_VOLUMES action */
+#define MPI2_RAID_ACTION_ADATA_DISABL_FULL_REBUILD  (0x00000001)
+
+/*ActionDataWord for MPI2_RAID_ACTION_SET_RAID_FUNCTION_RATE Action */
+typedef struct _MPI2_RAID_ACTION_RATE_DATA {
+	U8 RateToChange;	/*0x00 */
+	U8 RateOrMode;		/*0x01 */
+	U16 DataScrubDuration;	/*0x02 */
+} MPI2_RAID_ACTION_RATE_DATA, *PTR_MPI2_RAID_ACTION_RATE_DATA,
+	Mpi2RaidActionRateData_t, *pMpi2RaidActionRateData_t;
+
+#define MPI2_RAID_ACTION_SET_RATE_RESYNC            (0x00)
+#define MPI2_RAID_ACTION_SET_RATE_DATA_SCRUB        (0x01)
+#define MPI2_RAID_ACTION_SET_RATE_POWERSAVE_MODE    (0x02)
+
+/*ActionDataWord for MPI2_RAID_ACTION_START_RAID_FUNCTION Action */
+typedef struct _MPI2_RAID_ACTION_START_RAID_FUNCTION {
+	U8 RAIDFunction;	/*0x00 */
+	U8 Flags;		/*0x01 */
+	U16 Reserved1;		/*0x02 */
+} MPI2_RAID_ACTION_START_RAID_FUNCTION,
+	*PTR_MPI2_RAID_ACTION_START_RAID_FUNCTION,
+	Mpi2RaidActionStartRaidFunction_t,
+	*pMpi2RaidActionStartRaidFunction_t;
+
+/*defines for the RAIDFunction field */
+#define MPI2_RAID_ACTION_START_BACKGROUND_INIT      (0x00)
+#define MPI2_RAID_ACTION_START_ONLINE_CAP_EXPANSION (0x01)
+#define MPI2_RAID_ACTION_START_CONSISTENCY_CHECK    (0x02)
+
+/*defines for the Flags field */
+#define MPI2_RAID_ACTION_START_NEW                  (0x00)
+#define MPI2_RAID_ACTION_START_RESUME               (0x01)
+
+/*ActionDataWord for MPI2_RAID_ACTION_STOP_RAID_FUNCTION Action */
+typedef struct _MPI2_RAID_ACTION_STOP_RAID_FUNCTION {
+	U8 RAIDFunction;	/*0x00 */
+	U8 Flags;		/*0x01 */
+	U16 Reserved1;		/*0x02 */
+} MPI2_RAID_ACTION_STOP_RAID_FUNCTION,
+	*PTR_MPI2_RAID_ACTION_STOP_RAID_FUNCTION,
+	Mpi2RaidActionStopRaidFunction_t,
+	*pMpi2RaidActionStopRaidFunction_t;
+
+/*defines for the RAIDFunction field */
+#define MPI2_RAID_ACTION_STOP_BACKGROUND_INIT       (0x00)
+#define MPI2_RAID_ACTION_STOP_ONLINE_CAP_EXPANSION  (0x01)
+#define MPI2_RAID_ACTION_STOP_CONSISTENCY_CHECK     (0x02)
+
+/*defines for the Flags field */
+#define MPI2_RAID_ACTION_STOP_ABORT                 (0x00)
+#define MPI2_RAID_ACTION_STOP_PAUSE                 (0x01)
+
+/*ActionDataWord for MPI2_RAID_ACTION_CREATE_HOT_SPARE Action */
+typedef struct _MPI2_RAID_ACTION_HOT_SPARE {
+	U8 HotSparePool;	/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 DevHandle;		/*0x02 */
+} MPI2_RAID_ACTION_HOT_SPARE, *PTR_MPI2_RAID_ACTION_HOT_SPARE,
+	Mpi2RaidActionHotSpare_t, *pMpi2RaidActionHotSpare_t;
+
+/*ActionDataWord for MPI2_RAID_ACTION_DEVICE_FW_UPDATE_MODE Action */
+typedef struct _MPI2_RAID_ACTION_FW_UPDATE_MODE {
+	U8 Flags;		/*0x00 */
+	U8 DeviceFirmwareUpdateModeTimeout;	/*0x01 */
+	U16 Reserved1;		/*0x02 */
+} MPI2_RAID_ACTION_FW_UPDATE_MODE,
+	*PTR_MPI2_RAID_ACTION_FW_UPDATE_MODE,
+	Mpi2RaidActionFwUpdateMode_t,
+	*pMpi2RaidActionFwUpdateMode_t;
+
+/*ActionDataWord defines for use with
+ *MPI2_RAID_ACTION_DEVICE_FW_UPDATE_MODE action */
+#define MPI2_RAID_ACTION_ADATA_DISABLE_FW_UPDATE        (0x00)
+#define MPI2_RAID_ACTION_ADATA_ENABLE_FW_UPDATE         (0x01)
+
+typedef union _MPI2_RAID_ACTION_DATA {
+	U32 Word;
+	MPI2_RAID_ACTION_RATE_DATA Rates;
+	MPI2_RAID_ACTION_START_RAID_FUNCTION StartRaidFunction;
+	MPI2_RAID_ACTION_STOP_RAID_FUNCTION StopRaidFunction;
+	MPI2_RAID_ACTION_HOT_SPARE HotSpare;
+	MPI2_RAID_ACTION_FW_UPDATE_MODE FwUpdateMode;
+} MPI2_RAID_ACTION_DATA, *PTR_MPI2_RAID_ACTION_DATA,
+	Mpi2RaidActionData_t, *pMpi2RaidActionData_t;
+
+/*RAID Action Request Message */
+typedef struct _MPI2_RAID_ACTION_REQUEST {
+	U8 Action;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 VolDevHandle;	/*0x04 */
+	U8 PhysDiskNum;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved2;		/*0x0A */
+	U32 Reserved3;		/*0x0C */
+	MPI2_RAID_ACTION_DATA ActionDataWord;	/*0x10 */
+	MPI2_SGE_SIMPLE_UNION ActionDataSGE;	/*0x14 */
+} MPI2_RAID_ACTION_REQUEST, *PTR_MPI2_RAID_ACTION_REQUEST,
+	Mpi2RaidActionRequest_t, *pMpi2RaidActionRequest_t;
+
+/*RAID Action request Action values */
+
+#define MPI2_RAID_ACTION_INDICATOR_STRUCT           (0x01)
+#define MPI2_RAID_ACTION_CREATE_VOLUME              (0x02)
+#define MPI2_RAID_ACTION_DELETE_VOLUME              (0x03)
+#define MPI2_RAID_ACTION_DISABLE_ALL_VOLUMES        (0x04)
+#define MPI2_RAID_ACTION_ENABLE_ALL_VOLUMES         (0x05)
+#define MPI2_RAID_ACTION_PHYSDISK_OFFLINE           (0x0A)
+#define MPI2_RAID_ACTION_PHYSDISK_ONLINE            (0x0B)
+#define MPI2_RAID_ACTION_FAIL_PHYSDISK              (0x0F)
+#define MPI2_RAID_ACTION_ACTIVATE_VOLUME            (0x11)
+#define MPI2_RAID_ACTION_DEVICE_FW_UPDATE_MODE      (0x15)
+#define MPI2_RAID_ACTION_CHANGE_VOL_WRITE_CACHE     (0x17)
+#define MPI2_RAID_ACTION_SET_VOLUME_NAME            (0x18)
+#define MPI2_RAID_ACTION_SET_RAID_FUNCTION_RATE     (0x19)
+#define MPI2_RAID_ACTION_ENABLE_FAILED_VOLUME       (0x1C)
+#define MPI2_RAID_ACTION_CREATE_HOT_SPARE           (0x1D)
+#define MPI2_RAID_ACTION_DELETE_HOT_SPARE           (0x1E)
+#define MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED  (0x20)
+#define MPI2_RAID_ACTION_START_RAID_FUNCTION        (0x21)
+#define MPI2_RAID_ACTION_STOP_RAID_FUNCTION         (0x22)
+#define MPI2_RAID_ACTION_COMPATIBILITY_CHECK        (0x23)
+#define MPI2_RAID_ACTION_PHYSDISK_HIDDEN            (0x24)
+#define MPI2_RAID_ACTION_MIN_PRODUCT_SPECIFIC       (0x80)
+#define MPI2_RAID_ACTION_MAX_PRODUCT_SPECIFIC       (0xFF)
+
+/*RAID Volume Creation Structure */
+
+/*
+ *The following define can be customized for the targeted product.
+ */
+#ifndef MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS
+#define MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS        (1)
+#endif
+
+typedef struct _MPI2_RAID_VOLUME_PHYSDISK {
+	U8 RAIDSetNum;		/*0x00 */
+	U8 PhysDiskMap;		/*0x01 */
+	U16 PhysDiskDevHandle;	/*0x02 */
+} MPI2_RAID_VOLUME_PHYSDISK, *PTR_MPI2_RAID_VOLUME_PHYSDISK,
+	Mpi2RaidVolumePhysDisk_t, *pMpi2RaidVolumePhysDisk_t;
+
+/*defines for the PhysDiskMap field */
+#define MPI2_RAIDACTION_PHYSDISK_PRIMARY            (0x01)
+#define MPI2_RAIDACTION_PHYSDISK_SECONDARY          (0x02)
+
+typedef struct _MPI2_RAID_VOLUME_CREATION_STRUCT {
+	U8 NumPhysDisks;	/*0x00 */
+	U8 VolumeType;		/*0x01 */
+	U16 Reserved1;		/*0x02 */
+	U32 VolumeCreationFlags;	/*0x04 */
+	U32 VolumeSettings;	/*0x08 */
+	U8 Reserved2;		/*0x0C */
+	U8 ResyncRate;		/*0x0D */
+	U16 DataScrubDuration;	/*0x0E */
+	U64 VolumeMaxLBA;	/*0x10 */
+	U32 StripeSize;		/*0x18 */
+	U8 Name[16];		/*0x1C */
+	MPI2_RAID_VOLUME_PHYSDISK
+		PhysDisk[MPI2_RAID_VOL_CREATION_NUM_PHYSDISKS];	/*0x2C */
+} MPI2_RAID_VOLUME_CREATION_STRUCT,
+	*PTR_MPI2_RAID_VOLUME_CREATION_STRUCT,
+	Mpi2RaidVolumeCreationStruct_t,
+	*pMpi2RaidVolumeCreationStruct_t;
+
+/*use MPI2_RAID_VOL_TYPE_ defines from mpi2_cnfg.h for VolumeType */
+
+/*defines for the VolumeCreationFlags field */
+#define MPI2_RAID_VOL_CREATION_DEFAULT_SETTINGS     (0x80000000)
+#define MPI2_RAID_VOL_CREATION_BACKGROUND_INIT      (0x00000004)
+#define MPI2_RAID_VOL_CREATION_LOW_LEVEL_INIT       (0x00000002)
+#define MPI2_RAID_VOL_CREATION_MIGRATE_DATA         (0x00000001)
+/*The following is an obsolete define.
+ *It must be shifted left 24 bits in order to set the proper bit.
+ */
+#define MPI2_RAID_VOL_CREATION_USE_DEFAULT_SETTINGS (0x80)
+
+/*RAID Online Capacity Expansion Structure */
+
+typedef struct _MPI2_RAID_ONLINE_CAPACITY_EXPANSION {
+	U32 Flags;		/*0x00 */
+	U16 DevHandle0;		/*0x04 */
+	U16 Reserved1;		/*0x06 */
+	U16 DevHandle1;		/*0x08 */
+	U16 Reserved2;		/*0x0A */
+} MPI2_RAID_ONLINE_CAPACITY_EXPANSION,
+	*PTR_MPI2_RAID_ONLINE_CAPACITY_EXPANSION,
+	Mpi2RaidOnlineCapacityExpansion_t,
+	*pMpi2RaidOnlineCapacityExpansion_t;
+
+/*RAID Compatibility Input Structure */
+
+typedef struct _MPI2_RAID_COMPATIBILITY_INPUT_STRUCT {
+	U16 SourceDevHandle;	/*0x00 */
+	U16 CandidateDevHandle;	/*0x02 */
+	U32 Flags;		/*0x04 */
+	U32 Reserved1;		/*0x08 */
+	U32 Reserved2;		/*0x0C */
+} MPI2_RAID_COMPATIBILITY_INPUT_STRUCT,
+	*PTR_MPI2_RAID_COMPATIBILITY_INPUT_STRUCT,
+	Mpi2RaidCompatibilityInputStruct_t,
+	*pMpi2RaidCompatibilityInputStruct_t;
+
+/*defines for RAID Compatibility Structure Flags field */
+#define MPI2_RAID_COMPAT_SOURCE_IS_VOLUME_FLAG      (0x00000002)
+#define MPI2_RAID_COMPAT_REPORT_SOURCE_INFO_FLAG    (0x00000001)
+
+/*RAID Volume Indicator Structure */
+
+typedef struct _MPI2_RAID_VOL_INDICATOR {
+	U64 TotalBlocks;	/*0x00 */
+	U64 BlocksRemaining;	/*0x08 */
+	U32 Flags;		/*0x10 */
+} MPI2_RAID_VOL_INDICATOR, *PTR_MPI2_RAID_VOL_INDICATOR,
+	Mpi2RaidVolIndicator_t, *pMpi2RaidVolIndicator_t;
+
+/*defines for RAID Volume Indicator Flags field */
+#define MPI2_RAID_VOL_FLAGS_OP_MASK                 (0x0000000F)
+#define MPI2_RAID_VOL_FLAGS_OP_BACKGROUND_INIT      (0x00000000)
+#define MPI2_RAID_VOL_FLAGS_OP_ONLINE_CAP_EXPANSION (0x00000001)
+#define MPI2_RAID_VOL_FLAGS_OP_CONSISTENCY_CHECK    (0x00000002)
+#define MPI2_RAID_VOL_FLAGS_OP_RESYNC               (0x00000003)
+#define MPI2_RAID_VOL_FLAGS_OP_MDC                  (0x00000004)
+
+/*RAID Compatibility Result Structure */
+
+typedef struct _MPI2_RAID_COMPATIBILITY_RESULT_STRUCT {
+	U8 State;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U16 Reserved2;		/*0x02 */
+	U32 GenericAttributes;	/*0x04 */
+	U32 OEMSpecificAttributes;	/*0x08 */
+	U32 Reserved3;		/*0x0C */
+	U32 Reserved4;		/*0x10 */
+} MPI2_RAID_COMPATIBILITY_RESULT_STRUCT,
+	*PTR_MPI2_RAID_COMPATIBILITY_RESULT_STRUCT,
+	Mpi2RaidCompatibilityResultStruct_t,
+	*pMpi2RaidCompatibilityResultStruct_t;
+
+/*defines for RAID Compatibility Result Structure State field */
+#define MPI2_RAID_COMPAT_STATE_COMPATIBLE           (0x00)
+#define MPI2_RAID_COMPAT_STATE_NOT_COMPATIBLE       (0x01)
+
+/*defines for RAID Compatibility Result Structure GenericAttributes field */
+#define MPI2_RAID_COMPAT_GENATTRIB_4K_SECTOR            (0x00000010)
+
+#define MPI2_RAID_COMPAT_GENATTRIB_MEDIA_MASK           (0x0000000C)
+#define MPI2_RAID_COMPAT_GENATTRIB_SOLID_STATE_DRIVE    (0x00000008)
+#define MPI2_RAID_COMPAT_GENATTRIB_HARD_DISK_DRIVE      (0x00000004)
+
+#define MPI2_RAID_COMPAT_GENATTRIB_PROTOCOL_MASK        (0x00000003)
+#define MPI2_RAID_COMPAT_GENATTRIB_SAS_PROTOCOL         (0x00000002)
+#define MPI2_RAID_COMPAT_GENATTRIB_SATA_PROTOCOL        (0x00000001)
+
+/*RAID Action Reply ActionData union */
+typedef union _MPI2_RAID_ACTION_REPLY_DATA {
+	U32 Word[5];
+	MPI2_RAID_VOL_INDICATOR RaidVolumeIndicator;
+	U16 VolDevHandle;
+	U8 VolumeState;
+	U8 PhysDiskNum;
+	MPI2_RAID_COMPATIBILITY_RESULT_STRUCT RaidCompatibilityResult;
+} MPI2_RAID_ACTION_REPLY_DATA, *PTR_MPI2_RAID_ACTION_REPLY_DATA,
+	Mpi2RaidActionReplyData_t, *pMpi2RaidActionReplyData_t;
+
+/*use MPI2_RAIDVOL0_SETTING_ defines from mpi2_cnfg.h for
+ *MPI2_RAID_ACTION_CHANGE_VOL_WRITE_CACHE action */
+
+/*RAID Action Reply Message */
+typedef struct _MPI2_RAID_ACTION_REPLY {
+	U8 Action;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 VolDevHandle;	/*0x04 */
+	U8 PhysDiskNum;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved2;		/*0x0A */
+	U16 Reserved3;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	MPI2_RAID_ACTION_REPLY_DATA ActionData;	/*0x14 */
+} MPI2_RAID_ACTION_REPLY, *PTR_MPI2_RAID_ACTION_REPLY,
+	Mpi2RaidActionReply_t, *pMpi2RaidActionReply_t;
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_sas.h b/drivers/scsi/mpt3sas/mpi/mpi2_sas.h
new file mode 100644
index 000000000000..b4e7084aba31
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_sas.h
@@ -0,0 +1,295 @@
+/*
+ * Copyright (c) 2000-2012 LSI Corporation.
+ *
+ *
+ *          Name:  mpi2_sas.h
+ *         Title:  MPI Serial Attached SCSI structures and definitions
+ * Creation Date:  February 9, 2007
+ *
+ * mpi2_sas.h Version:  02.00.07
+ *
+ * NOTE: Names (typedefs, defines, etc.) beginning with an MPI25 or Mpi25
+ *       prefix are for use only on MPI v2.5 products, and must not be used
+ *       with MPI v2.0 products. Unless otherwise noted, names beginning with
+ *       MPI2 or Mpi2 are for use with both MPI v2.0 and MPI v2.5 products.
+ *
+ * Version History
+ * ---------------
+ *
+ * Date      Version   Description
+ * --------  --------  ------------------------------------------------------
+ * 04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ * 06-26-07  02.00.01  Added Clear All Persistent Operation to SAS IO Unit
+ *                     Control Request.
+ * 10-02-08  02.00.02  Added Set IOC Parameter Operation to SAS IO Unit Control
+ *                     Request.
+ * 10-28-09  02.00.03  Changed the type of SGL in MPI2_SATA_PASSTHROUGH_REQUEST
+ *                     to MPI2_SGE_IO_UNION since it supports chained SGLs.
+ * 05-12-10  02.00.04  Modified some comments.
+ * 08-11-10  02.00.05  Added NCQ operations to SAS IO Unit Control.
+ * 11-18-11  02.00.06  Incorporating additions for MPI v2.5.
+ * 07-10-12  02.00.07  Added MPI2_SATA_PT_SGE_UNION for use in the SATA
+ *                     Passthrough Request message.
+ * --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_SAS_H
+#define MPI2_SAS_H
+
+/*
+ *Values for SASStatus.
+ */
+#define MPI2_SASSTATUS_SUCCESS                          (0x00)
+#define MPI2_SASSTATUS_UNKNOWN_ERROR                    (0x01)
+#define MPI2_SASSTATUS_INVALID_FRAME                    (0x02)
+#define MPI2_SASSTATUS_UTC_BAD_DEST                     (0x03)
+#define MPI2_SASSTATUS_UTC_BREAK_RECEIVED               (0x04)
+#define MPI2_SASSTATUS_UTC_CONNECT_RATE_NOT_SUPPORTED   (0x05)
+#define MPI2_SASSTATUS_UTC_PORT_LAYER_REQUEST           (0x06)
+#define MPI2_SASSTATUS_UTC_PROTOCOL_NOT_SUPPORTED       (0x07)
+#define MPI2_SASSTATUS_UTC_STP_RESOURCES_BUSY           (0x08)
+#define MPI2_SASSTATUS_UTC_WRONG_DESTINATION            (0x09)
+#define MPI2_SASSTATUS_SHORT_INFORMATION_UNIT           (0x0A)
+#define MPI2_SASSTATUS_LONG_INFORMATION_UNIT            (0x0B)
+#define MPI2_SASSTATUS_XFER_RDY_INCORRECT_WRITE_DATA    (0x0C)
+#define MPI2_SASSTATUS_XFER_RDY_REQUEST_OFFSET_ERROR    (0x0D)
+#define MPI2_SASSTATUS_XFER_RDY_NOT_EXPECTED            (0x0E)
+#define MPI2_SASSTATUS_DATA_INCORRECT_DATA_LENGTH       (0x0F)
+#define MPI2_SASSTATUS_DATA_TOO_MUCH_READ_DATA          (0x10)
+#define MPI2_SASSTATUS_DATA_OFFSET_ERROR                (0x11)
+#define MPI2_SASSTATUS_SDSF_NAK_RECEIVED                (0x12)
+#define MPI2_SASSTATUS_SDSF_CONNECTION_FAILED           (0x13)
+#define MPI2_SASSTATUS_INITIATOR_RESPONSE_TIMEOUT       (0x14)
+
+/*
+ *Values for the SAS DeviceInfo field used in SAS Device Status Change Event
+ *data and SAS Configuration pages.
+ */
+#define MPI2_SAS_DEVICE_INFO_SEP                (0x00004000)
+#define MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE       (0x00002000)
+#define MPI2_SAS_DEVICE_INFO_LSI_DEVICE         (0x00001000)
+#define MPI2_SAS_DEVICE_INFO_DIRECT_ATTACH      (0x00000800)
+#define MPI2_SAS_DEVICE_INFO_SSP_TARGET         (0x00000400)
+#define MPI2_SAS_DEVICE_INFO_STP_TARGET         (0x00000200)
+#define MPI2_SAS_DEVICE_INFO_SMP_TARGET         (0x00000100)
+#define MPI2_SAS_DEVICE_INFO_SATA_DEVICE        (0x00000080)
+#define MPI2_SAS_DEVICE_INFO_SSP_INITIATOR      (0x00000040)
+#define MPI2_SAS_DEVICE_INFO_STP_INITIATOR      (0x00000020)
+#define MPI2_SAS_DEVICE_INFO_SMP_INITIATOR      (0x00000010)
+#define MPI2_SAS_DEVICE_INFO_SATA_HOST          (0x00000008)
+
+#define MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE   (0x00000007)
+#define MPI2_SAS_DEVICE_INFO_NO_DEVICE          (0x00000000)
+#define MPI2_SAS_DEVICE_INFO_END_DEVICE         (0x00000001)
+#define MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER      (0x00000002)
+#define MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER    (0x00000003)
+
+/*****************************************************************************
+*
+*       SAS Messages
+*
+*****************************************************************************/
+
+/****************************************************************************
+* SMP Passthrough messages
+****************************************************************************/
+
+/*SMP Passthrough Request Message */
+typedef struct _MPI2_SMP_PASSTHROUGH_REQUEST {
+	U8 PassthroughFlags;	/*0x00 */
+	U8 PhysicalPort;	/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 RequestDataLength;	/*0x04 */
+	U8 SGLFlags;		/*0x06*//*MPI v2.0 only. Reserved on MPI v2.5*/
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved1;		/*0x0A */
+	U32 Reserved2;		/*0x0C */
+	U64 SASAddress;		/*0x10 */
+	U32 Reserved3;		/*0x18 */
+	U32 Reserved4;		/*0x1C */
+	MPI2_SIMPLE_SGE_UNION SGL;/*0x20 */
+} MPI2_SMP_PASSTHROUGH_REQUEST, *PTR_MPI2_SMP_PASSTHROUGH_REQUEST,
+	Mpi2SmpPassthroughRequest_t, *pMpi2SmpPassthroughRequest_t;
+
+/*values for PassthroughFlags field */
+#define MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE      (0x80)
+
+/*MPI v2.0: use MPI2_SGLFLAGS_ defines from mpi2.h for the SGLFlags field */
+
+/*SMP Passthrough Reply Message */
+typedef struct _MPI2_SMP_PASSTHROUGH_REPLY {
+	U8 PassthroughFlags;	/*0x00 */
+	U8 PhysicalPort;	/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 ResponseDataLength;	/*0x04 */
+	U8 SGLFlags;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved1;		/*0x0A */
+	U8 Reserved2;		/*0x0C */
+	U8 SASStatus;		/*0x0D */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U32 Reserved3;		/*0x14 */
+	U8 ResponseData[4];	/*0x18 */
+} MPI2_SMP_PASSTHROUGH_REPLY, *PTR_MPI2_SMP_PASSTHROUGH_REPLY,
+	Mpi2SmpPassthroughReply_t, *pMpi2SmpPassthroughReply_t;
+
+/*values for PassthroughFlags field */
+#define MPI2_SMP_PT_REPLY_PT_FLAGS_IMMEDIATE    (0x80)
+
+/*values for SASStatus field are at the top of this file */
+
+/****************************************************************************
+* SATA Passthrough messages
+****************************************************************************/
+
+typedef union _MPI2_SATA_PT_SGE_UNION {
+	MPI2_SGE_SIMPLE_UNION MpiSimple;	/*MPI v2.0 only */
+	MPI2_SGE_CHAIN_UNION MpiChain;	/*MPI v2.0 only */
+	MPI2_IEEE_SGE_SIMPLE_UNION IeeeSimple;
+	MPI2_IEEE_SGE_CHAIN_UNION IeeeChain;	/*MPI v2.0 only */
+	MPI25_IEEE_SGE_CHAIN64 IeeeChain64;	/*MPI v2.5 only */
+} MPI2_SATA_PT_SGE_UNION, *PTR_MPI2_SATA_PT_SGE_UNION,
+	Mpi2SataPTSGEUnion_t, *pMpi2SataPTSGEUnion_t;
+
+/*SATA Passthrough Request Message */
+typedef struct _MPI2_SATA_PASSTHROUGH_REQUEST {
+	U16 DevHandle;		/*0x00 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 PassthroughFlags;	/*0x04 */
+	U8 SGLFlags;		/*0x06*//*MPI v2.0 only. Reserved on MPI v2.5*/
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved1;		/*0x0A */
+	U32 Reserved2;		/*0x0C */
+	U32 Reserved3;		/*0x10 */
+	U32 Reserved4;		/*0x14 */
+	U32 DataLength;		/*0x18 */
+	U8 CommandFIS[20];	/*0x1C */
+	MPI2_SATA_PT_SGE_UNION SGL;/*0x30*//*MPI v2.5: IEEE 64 elements only*/
+} MPI2_SATA_PASSTHROUGH_REQUEST, *PTR_MPI2_SATA_PASSTHROUGH_REQUEST,
+	Mpi2SataPassthroughRequest_t,
+	*pMpi2SataPassthroughRequest_t;
+
+/*values for PassthroughFlags field */
+#define MPI2_SATA_PT_REQ_PT_FLAGS_EXECUTE_DIAG      (0x0100)
+#define MPI2_SATA_PT_REQ_PT_FLAGS_DMA               (0x0020)
+#define MPI2_SATA_PT_REQ_PT_FLAGS_PIO               (0x0010)
+#define MPI2_SATA_PT_REQ_PT_FLAGS_UNSPECIFIED_VU    (0x0004)
+#define MPI2_SATA_PT_REQ_PT_FLAGS_WRITE             (0x0002)
+#define MPI2_SATA_PT_REQ_PT_FLAGS_READ              (0x0001)
+
+/*MPI v2.0: use MPI2_SGLFLAGS_ defines from mpi2.h for the SGLFlags field */
+
+/*SATA Passthrough Reply Message */
+typedef struct _MPI2_SATA_PASSTHROUGH_REPLY {
+	U16 DevHandle;		/*0x00 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 PassthroughFlags;	/*0x04 */
+	U8 SGLFlags;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved1;		/*0x0A */
+	U8 Reserved2;		/*0x0C */
+	U8 SASStatus;		/*0x0D */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U8 StatusFIS[20];	/*0x14 */
+	U32 StatusControlRegisters;	/*0x28 */
+	U32 TransferCount;	/*0x2C */
+} MPI2_SATA_PASSTHROUGH_REPLY, *PTR_MPI2_SATA_PASSTHROUGH_REPLY,
+	Mpi2SataPassthroughReply_t, *pMpi2SataPassthroughReply_t;
+
+/*values for SASStatus field are at the top of this file */
+
+/****************************************************************************
+* SAS IO Unit Control messages
+****************************************************************************/
+
+/*SAS IO Unit Control Request Message */
+typedef struct _MPI2_SAS_IOUNIT_CONTROL_REQUEST {
+	U8 Operation;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 DevHandle;		/*0x04 */
+	U8 IOCParameter;	/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U16 Reserved4;		/*0x0C */
+	U8 PhyNum;		/*0x0E */
+	U8 PrimFlags;		/*0x0F */
+	U32 Primitive;		/*0x10 */
+	U8 LookupMethod;	/*0x14 */
+	U8 Reserved5;		/*0x15 */
+	U16 SlotNumber;		/*0x16 */
+	U64 LookupAddress;	/*0x18 */
+	U32 IOCParameterValue;	/*0x20 */
+	U32 Reserved7;		/*0x24 */
+	U32 Reserved8;		/*0x28 */
+} MPI2_SAS_IOUNIT_CONTROL_REQUEST,
+	*PTR_MPI2_SAS_IOUNIT_CONTROL_REQUEST,
+	Mpi2SasIoUnitControlRequest_t,
+	*pMpi2SasIoUnitControlRequest_t;
+
+/*values for the Operation field */
+#define MPI2_SAS_OP_CLEAR_ALL_PERSISTENT        (0x02)
+#define MPI2_SAS_OP_PHY_LINK_RESET              (0x06)
+#define MPI2_SAS_OP_PHY_HARD_RESET              (0x07)
+#define MPI2_SAS_OP_PHY_CLEAR_ERROR_LOG         (0x08)
+#define MPI2_SAS_OP_SEND_PRIMITIVE              (0x0A)
+#define MPI2_SAS_OP_FORCE_FULL_DISCOVERY        (0x0B)
+#define MPI2_SAS_OP_TRANSMIT_PORT_SELECT_SIGNAL (0x0C)
+#define MPI2_SAS_OP_REMOVE_DEVICE               (0x0D)
+#define MPI2_SAS_OP_LOOKUP_MAPPING              (0x0E)
+#define MPI2_SAS_OP_SET_IOC_PARAMETER           (0x0F)
+#define MPI25_SAS_OP_ENABLE_FP_DEVICE           (0x10)
+#define MPI25_SAS_OP_DISABLE_FP_DEVICE          (0x11)
+#define MPI25_SAS_OP_ENABLE_FP_ALL              (0x12)
+#define MPI25_SAS_OP_DISABLE_FP_ALL             (0x13)
+#define MPI2_SAS_OP_DEV_ENABLE_NCQ              (0x14)
+#define MPI2_SAS_OP_DEV_DISABLE_NCQ             (0x15)
+#define MPI2_SAS_OP_PRODUCT_SPECIFIC_MIN        (0x80)
+
+/*values for the PrimFlags field */
+#define MPI2_SAS_PRIMFLAGS_SINGLE               (0x08)
+#define MPI2_SAS_PRIMFLAGS_TRIPLE               (0x02)
+#define MPI2_SAS_PRIMFLAGS_REDUNDANT            (0x01)
+
+/*values for the LookupMethod field */
+#define MPI2_SAS_LOOKUP_METHOD_SAS_ADDRESS          (0x01)
+#define MPI2_SAS_LOOKUP_METHOD_SAS_ENCLOSURE_SLOT   (0x02)
+#define MPI2_SAS_LOOKUP_METHOD_SAS_DEVICE_NAME      (0x03)
+
+/*SAS IO Unit Control Reply Message */
+typedef struct _MPI2_SAS_IOUNIT_CONTROL_REPLY {
+	U8 Operation;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 DevHandle;		/*0x04 */
+	U8 IOCParameter;	/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved3;		/*0x0A */
+	U16 Reserved4;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_SAS_IOUNIT_CONTROL_REPLY,
+	*PTR_MPI2_SAS_IOUNIT_CONTROL_REPLY,
+	Mpi2SasIoUnitControlReply_t, *pMpi2SasIoUnitControlReply_t;
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_tool.h b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
new file mode 100644
index 000000000000..71453d11c1c1
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
@@ -0,0 +1,437 @@
+/*
+ * Copyright (c) 2000-2012 LSI Corporation.
+ *
+ *
+ *          Name:  mpi2_tool.h
+ *         Title:  MPI diagnostic tool structures and definitions
+ * Creation Date:  March 26, 2007
+ *
+ *   mpi2_tool.h Version:  02.00.09
+ *
+ * Version History
+ * ---------------
+ *
+ * Date      Version   Description
+ * --------  --------  ------------------------------------------------------
+ * 04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ * 12-18-07  02.00.01  Added Diagnostic Buffer Post and Diagnostic Release
+ *                     structures and defines.
+ * 02-29-08  02.00.02  Modified various names to make them 32-character unique.
+ * 05-06-09  02.00.03  Added ISTWI Read Write Tool and Diagnostic CLI Tool.
+ * 07-30-09  02.00.04  Added ExtendedType field to DiagnosticBufferPost request
+ *                     and reply messages.
+ *                     Added MPI2_DIAG_BUF_TYPE_EXTENDED.
+ *                     Incremented MPI2_DIAG_BUF_TYPE_COUNT.
+ * 05-12-10  02.00.05  Added Diagnostic Data Upload tool.
+ * 08-11-10  02.00.06  Added defines that were missing for Diagnostic Buffer
+ *                     Post Request.
+ * 05-25-11  02.00.07  Added Flags field and related defines to
+ *                     MPI2_TOOLBOX_ISTWI_READ_WRITE_REQUEST.
+ * 11-18-11  02.00.08  Incorporating additions for MPI v2.5.
+ * 07-10-12  02.00.09  Add MPI v2.5 Toolbox Diagnostic CLI Tool Request
+ *                     message.
+ * --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_TOOL_H
+#define MPI2_TOOL_H
+
+/*****************************************************************************
+*
+*              Toolbox Messages
+*
+*****************************************************************************/
+
+/*defines for the Tools */
+#define MPI2_TOOLBOX_CLEAN_TOOL                     (0x00)
+#define MPI2_TOOLBOX_MEMORY_MOVE_TOOL               (0x01)
+#define MPI2_TOOLBOX_DIAG_DATA_UPLOAD_TOOL          (0x02)
+#define MPI2_TOOLBOX_ISTWI_READ_WRITE_TOOL          (0x03)
+#define MPI2_TOOLBOX_BEACON_TOOL                    (0x05)
+#define MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL            (0x06)
+
+/****************************************************************************
+* Toolbox reply
+****************************************************************************/
+
+typedef struct _MPI2_TOOLBOX_REPLY {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_TOOLBOX_REPLY, *PTR_MPI2_TOOLBOX_REPLY,
+	Mpi2ToolboxReply_t, *pMpi2ToolboxReply_t;
+
+/****************************************************************************
+* Toolbox Clean Tool request
+****************************************************************************/
+
+typedef struct _MPI2_TOOLBOX_CLEAN_REQUEST {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 Flags;		/*0x0C */
+} MPI2_TOOLBOX_CLEAN_REQUEST, *PTR_MPI2_TOOLBOX_CLEAN_REQUEST,
+	Mpi2ToolboxCleanRequest_t, *pMpi2ToolboxCleanRequest_t;
+
+/*values for the Flags field */
+#define MPI2_TOOLBOX_CLEAN_BOOT_SERVICES            (0x80000000)
+#define MPI2_TOOLBOX_CLEAN_PERSIST_MANUFACT_PAGES   (0x40000000)
+#define MPI2_TOOLBOX_CLEAN_OTHER_PERSIST_PAGES      (0x20000000)
+#define MPI2_TOOLBOX_CLEAN_FW_CURRENT               (0x10000000)
+#define MPI2_TOOLBOX_CLEAN_FW_BACKUP                (0x08000000)
+#define MPI2_TOOLBOX_CLEAN_MEGARAID                 (0x02000000)
+#define MPI2_TOOLBOX_CLEAN_INITIALIZATION           (0x01000000)
+#define MPI2_TOOLBOX_CLEAN_FLASH                    (0x00000004)
+#define MPI2_TOOLBOX_CLEAN_SEEPROM                  (0x00000002)
+#define MPI2_TOOLBOX_CLEAN_NVSRAM                   (0x00000001)
+
+/****************************************************************************
+* Toolbox Memory Move request
+****************************************************************************/
+
+typedef struct _MPI2_TOOLBOX_MEM_MOVE_REQUEST {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	MPI2_SGE_SIMPLE_UNION SGL;	/*0x0C */
+} MPI2_TOOLBOX_MEM_MOVE_REQUEST, *PTR_MPI2_TOOLBOX_MEM_MOVE_REQUEST,
+	Mpi2ToolboxMemMoveRequest_t, *pMpi2ToolboxMemMoveRequest_t;
+
+/****************************************************************************
+* Toolbox Diagnostic Data Upload request
+****************************************************************************/
+
+typedef struct _MPI2_TOOLBOX_DIAG_DATA_UPLOAD_REQUEST {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U8 SGLFlags;		/*0x0C */
+	U8 Reserved5;		/*0x0D */
+	U16 Reserved6;		/*0x0E */
+	U32 Flags;		/*0x10 */
+	U32 DataLength;		/*0x14 */
+	MPI2_SGE_SIMPLE_UNION SGL;	/*0x18 */
+} MPI2_TOOLBOX_DIAG_DATA_UPLOAD_REQUEST,
+	*PTR_MPI2_TOOLBOX_DIAG_DATA_UPLOAD_REQUEST,
+	Mpi2ToolboxDiagDataUploadRequest_t,
+	*pMpi2ToolboxDiagDataUploadRequest_t;
+
+/*use MPI2_SGLFLAGS_ defines from mpi2.h for the SGLFlags field */
+
+typedef struct _MPI2_DIAG_DATA_UPLOAD_HEADER {
+	U32 DiagDataLength;	/*00h */
+	U8 FormatCode;		/*04h */
+	U8 Reserved1;		/*05h */
+	U16 Reserved2;		/*06h */
+} MPI2_DIAG_DATA_UPLOAD_HEADER, *PTR_MPI2_DIAG_DATA_UPLOAD_HEADER,
+	Mpi2DiagDataUploadHeader_t, *pMpi2DiagDataUploadHeader_t;
+
+/****************************************************************************
+* Toolbox ISTWI Read Write Tool
+****************************************************************************/
+
+/*Toolbox ISTWI Read Write Tool request message */
+typedef struct _MPI2_TOOLBOX_ISTWI_READ_WRITE_REQUEST {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 Reserved5;		/*0x0C */
+	U32 Reserved6;		/*0x10 */
+	U8 DevIndex;		/*0x14 */
+	U8 Action;		/*0x15 */
+	U8 SGLFlags;		/*0x16 */
+	U8 Flags;		/*0x17 */
+	U16 TxDataLength;	/*0x18 */
+	U16 RxDataLength;	/*0x1A */
+	U32 Reserved8;		/*0x1C */
+	U32 Reserved9;		/*0x20 */
+	U32 Reserved10;		/*0x24 */
+	U32 Reserved11;		/*0x28 */
+	U32 Reserved12;		/*0x2C */
+	MPI2_SGE_SIMPLE_UNION SGL;	/*0x30 */
+} MPI2_TOOLBOX_ISTWI_READ_WRITE_REQUEST,
+	*PTR_MPI2_TOOLBOX_ISTWI_READ_WRITE_REQUEST,
+	Mpi2ToolboxIstwiReadWriteRequest_t,
+	*pMpi2ToolboxIstwiReadWriteRequest_t;
+
+/*values for the Action field */
+#define MPI2_TOOL_ISTWI_ACTION_READ_DATA            (0x01)
+#define MPI2_TOOL_ISTWI_ACTION_WRITE_DATA           (0x02)
+#define MPI2_TOOL_ISTWI_ACTION_SEQUENCE             (0x03)
+#define MPI2_TOOL_ISTWI_ACTION_RESERVE_BUS          (0x10)
+#define MPI2_TOOL_ISTWI_ACTION_RELEASE_BUS          (0x11)
+#define MPI2_TOOL_ISTWI_ACTION_RESET                (0x12)
+
+/*use MPI2_SGLFLAGS_ defines from mpi2.h for the SGLFlags field */
+
+/*values for the Flags field */
+#define MPI2_TOOL_ISTWI_FLAG_AUTO_RESERVE_RELEASE   (0x80)
+#define MPI2_TOOL_ISTWI_FLAG_PAGE_ADDR_MASK         (0x07)
+
+/*Toolbox ISTWI Read Write Tool reply message */
+typedef struct _MPI2_TOOLBOX_ISTWI_REPLY {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U8 DevIndex;		/*0x14 */
+	U8 Action;		/*0x15 */
+	U8 IstwiStatus;		/*0x16 */
+	U8 Reserved6;		/*0x17 */
+	U16 TxDataCount;	/*0x18 */
+	U16 RxDataCount;	/*0x1A */
+} MPI2_TOOLBOX_ISTWI_REPLY, *PTR_MPI2_TOOLBOX_ISTWI_REPLY,
+	Mpi2ToolboxIstwiReply_t, *pMpi2ToolboxIstwiReply_t;
+
+/****************************************************************************
+* Toolbox Beacon Tool request
+****************************************************************************/
+
+typedef struct _MPI2_TOOLBOX_BEACON_REQUEST {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U8 Reserved5;		/*0x0C */
+	U8 PhysicalPort;	/*0x0D */
+	U8 Reserved6;		/*0x0E */
+	U8 Flags;		/*0x0F */
+} MPI2_TOOLBOX_BEACON_REQUEST, *PTR_MPI2_TOOLBOX_BEACON_REQUEST,
+	Mpi2ToolboxBeaconRequest_t, *pMpi2ToolboxBeaconRequest_t;
+
+/*values for the Flags field */
+#define MPI2_TOOLBOX_FLAGS_BEACONMODE_OFF       (0x00)
+#define MPI2_TOOLBOX_FLAGS_BEACONMODE_ON        (0x01)
+
+/****************************************************************************
+* Toolbox Diagnostic CLI Tool
+****************************************************************************/
+
+#define MPI2_TOOLBOX_DIAG_CLI_CMD_LENGTH    (0x5C)
+
+/*MPI v2.0 Toolbox Diagnostic CLI Tool request message */
+typedef struct _MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U8 SGLFlags;		/*0x0C */
+	U8 Reserved5;		/*0x0D */
+	U16 Reserved6;		/*0x0E */
+	U32 DataLength;		/*0x10 */
+	U8 DiagnosticCliCommand[MPI2_TOOLBOX_DIAG_CLI_CMD_LENGTH];/*0x14 */
+	MPI2_SGE_SIMPLE_UNION SGL;	/*0x70 */
+} MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST,
+	*PTR_MPI2_TOOLBOX_DIAGNOSTIC_CLI_REQUEST,
+	Mpi2ToolboxDiagnosticCliRequest_t,
+	*pMpi2ToolboxDiagnosticCliRequest_t;
+
+/*use MPI2_SGLFLAGS_ defines from mpi2.h for the SGLFlags field */
+
+/*MPI v2.5 Toolbox Diagnostic CLI Tool request message */
+typedef struct _MPI25_TOOLBOX_DIAGNOSTIC_CLI_REQUEST {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U32 Reserved5;		/*0x0C */
+	U32 DataLength;		/*0x10 */
+	U8 DiagnosticCliCommand[MPI2_TOOLBOX_DIAG_CLI_CMD_LENGTH];/*0x14 */
+	MPI25_SGE_IO_UNION SGL;	/*0x70 */
+} MPI25_TOOLBOX_DIAGNOSTIC_CLI_REQUEST,
+	*PTR_MPI25_TOOLBOX_DIAGNOSTIC_CLI_REQUEST,
+	Mpi25ToolboxDiagnosticCliRequest_t,
+	*pMpi25ToolboxDiagnosticCliRequest_t;
+
+/*Toolbox Diagnostic CLI Tool reply message */
+typedef struct _MPI2_TOOLBOX_DIAGNOSTIC_CLI_REPLY {
+	U8 Tool;		/*0x00 */
+	U8 Reserved1;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U32 ReturnedDataLength;	/*0x14 */
+} MPI2_TOOLBOX_DIAGNOSTIC_CLI_REPLY,
+	*PTR_MPI2_TOOLBOX_DIAG_CLI_REPLY,
+	Mpi2ToolboxDiagnosticCliReply_t,
+	*pMpi2ToolboxDiagnosticCliReply_t;
+
+/*****************************************************************************
+*
+*      Diagnostic Buffer Messages
+*
+*****************************************************************************/
+
+/****************************************************************************
+* Diagnostic Buffer Post request
+****************************************************************************/
+
+typedef struct _MPI2_DIAG_BUFFER_POST_REQUEST {
+	U8 ExtendedType;	/*0x00 */
+	U8 BufferType;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U64 BufferAddress;	/*0x0C */
+	U32 BufferLength;	/*0x14 */
+	U32 Reserved5;		/*0x18 */
+	U32 Reserved6;		/*0x1C */
+	U32 Flags;		/*0x20 */
+	U32 ProductSpecific[23];	/*0x24 */
+} MPI2_DIAG_BUFFER_POST_REQUEST, *PTR_MPI2_DIAG_BUFFER_POST_REQUEST,
+	Mpi2DiagBufferPostRequest_t, *pMpi2DiagBufferPostRequest_t;
+
+/*values for the ExtendedType field */
+#define MPI2_DIAG_EXTENDED_TYPE_UTILIZATION         (0x02)
+
+/*values for the BufferType field */
+#define MPI2_DIAG_BUF_TYPE_TRACE                    (0x00)
+#define MPI2_DIAG_BUF_TYPE_SNAPSHOT                 (0x01)
+#define MPI2_DIAG_BUF_TYPE_EXTENDED                 (0x02)
+/*count of the number of buffer types */
+#define MPI2_DIAG_BUF_TYPE_COUNT                    (0x03)
+
+/*values for the Flags field */
+#define MPI2_DIAG_BUF_FLAG_RELEASE_ON_FULL          (0x00000002)
+#define MPI2_DIAG_BUF_FLAG_IMMEDIATE_RELEASE        (0x00000001)
+
+/****************************************************************************
+* Diagnostic Buffer Post reply
+****************************************************************************/
+
+typedef struct _MPI2_DIAG_BUFFER_POST_REPLY {
+	U8 ExtendedType;	/*0x00 */
+	U8 BufferType;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+	U32 TransferLength;	/*0x14 */
+} MPI2_DIAG_BUFFER_POST_REPLY, *PTR_MPI2_DIAG_BUFFER_POST_REPLY,
+	Mpi2DiagBufferPostReply_t, *pMpi2DiagBufferPostReply_t;
+
+/****************************************************************************
+* Diagnostic Release request
+****************************************************************************/
+
+typedef struct _MPI2_DIAG_RELEASE_REQUEST {
+	U8 Reserved1;		/*0x00 */
+	U8 BufferType;		/*0x01 */
+	U8 ChainOffset;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+} MPI2_DIAG_RELEASE_REQUEST, *PTR_MPI2_DIAG_RELEASE_REQUEST,
+	Mpi2DiagReleaseRequest_t, *pMpi2DiagReleaseRequest_t;
+
+/****************************************************************************
+* Diagnostic Buffer Post reply
+****************************************************************************/
+
+typedef struct _MPI2_DIAG_RELEASE_REPLY {
+	U8 Reserved1;		/*0x00 */
+	U8 BufferType;		/*0x01 */
+	U8 MsgLength;		/*0x02 */
+	U8 Function;		/*0x03 */
+	U16 Reserved2;		/*0x04 */
+	U8 Reserved3;		/*0x06 */
+	U8 MsgFlags;		/*0x07 */
+	U8 VP_ID;		/*0x08 */
+	U8 VF_ID;		/*0x09 */
+	U16 Reserved4;		/*0x0A */
+	U16 Reserved5;		/*0x0C */
+	U16 IOCStatus;		/*0x0E */
+	U32 IOCLogInfo;		/*0x10 */
+} MPI2_DIAG_RELEASE_REPLY, *PTR_MPI2_DIAG_RELEASE_REPLY,
+	Mpi2DiagReleaseReply_t, *pMpi2DiagReleaseReply_t;
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_type.h b/drivers/scsi/mpt3sas/mpi/mpi2_type.h
new file mode 100644
index 000000000000..516f959573f5
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_type.h
@@ -0,0 +1,56 @@
+/*
+ *  Copyright (c) 2000-2007 LSI Corporation.
+ *
+ *
+ *           Name:  mpi2_type.h
+ *          Title:  MPI basic type definitions
+ *  Creation Date:  August 16, 2006
+ *
+ *    mpi2_type.h Version:  02.00.00
+ *
+ *  Version History
+ *  ---------------
+ *
+ *  Date      Version   Description
+ *  --------  --------  ------------------------------------------------------
+ *  04-30-07  02.00.00  Corresponds to Fusion-MPT MPI Specification Rev A.
+ *  --------------------------------------------------------------------------
+ */
+
+#ifndef MPI2_TYPE_H
+#define MPI2_TYPE_H
+
+/*******************************************************************************
+ * Define * if it hasn't already been defined. By default
+ * * is defined to be a near pointer. MPI2_POINTER can be defined as
+ * a far pointer by defining * as "far *" before this header file is
+ * included.
+ */
+
+/* the basic types may have already been included by mpi_type.h */
+#ifndef MPI_TYPE_H
+/*****************************************************************************
+*
+*               Basic Types
+*
+*****************************************************************************/
+
+typedef u8 U8;
+typedef __le16 U16;
+typedef __le32 U32;
+typedef __le64 U64 __attribute__ ((aligned(4)));
+
+/*****************************************************************************
+*
+*               Pointer Types
+*
+*****************************************************************************/
+
+typedef U8 *PU8;
+typedef U16 *PU16;
+typedef U32 *PU32;
+typedef U64 *PU64;
+
+#endif
+
+#endif
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
new file mode 100644
index 000000000000..04f8010f0770
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -0,0 +1,4840 @@
+/*
+ * This is the Fusion MPT base driver providing common API layer interface
+ * for access to MPT (Message Passing Technology) firmware.
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_base.c
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/time.h>
+#include <linux/kthread.h>
+#include <linux/aer.h>
+
+
+#include "mpt3sas_base.h"
+
+static MPT_CALLBACK	mpt_callbacks[MPT_MAX_CALLBACKS];
+
+
+#define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
+
+ /* maximum controller queue depth */
+#define MAX_HBA_QUEUE_DEPTH	30000
+#define MAX_CHAIN_DEPTH		100000
+static int max_queue_depth = -1;
+module_param(max_queue_depth, int, 0);
+MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
+
+static int max_sgl_entries = -1;
+module_param(max_sgl_entries, int, 0);
+MODULE_PARM_DESC(max_sgl_entries, " max sg entries ");
+
+static int msix_disable = -1;
+module_param(msix_disable, int, 0);
+MODULE_PARM_DESC(msix_disable, " disable msix routed interrupts (default=0)");
+
+
+static int mpt3sas_fwfault_debug;
+MODULE_PARM_DESC(mpt3sas_fwfault_debug,
+	" enable detection of firmware fault and halt firmware - (default=0)");
+
+
+/**
+ * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
+ *
+ */
+static int
+_scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
+{
+	int ret = param_set_int(val, kp);
+	struct MPT3SAS_ADAPTER *ioc;
+
+	if (ret)
+		return ret;
+
+	pr_info("setting fwfault_debug(%d)\n", mpt3sas_fwfault_debug);
+	list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
+		ioc->fwfault_debug = mpt3sas_fwfault_debug;
+	return 0;
+}
+module_param_call(mpt3sas_fwfault_debug, _scsih_set_fwfault_debug,
+	param_get_int, &mpt3sas_fwfault_debug, 0644);
+
+/**
+ *  mpt3sas_remove_dead_ioc_func - kthread context to remove dead ioc
+ * @arg: input argument, used to derive ioc
+ *
+ * Return 0 if controller is removed from pci subsystem.
+ * Return -1 for other case.
+ */
+static int mpt3sas_remove_dead_ioc_func(void *arg)
+{
+	struct MPT3SAS_ADAPTER *ioc = (struct MPT3SAS_ADAPTER *)arg;
+	struct pci_dev *pdev;
+
+	if ((ioc == NULL))
+		return -1;
+
+	pdev = ioc->pdev;
+	if ((pdev == NULL))
+		return -1;
+	pci_stop_and_remove_bus_device(pdev);
+	return 0;
+}
+
+/**
+ * _base_fault_reset_work - workq handling ioc fault conditions
+ * @work: input argument, used to derive ioc
+ * Context: sleep.
+ *
+ * Return nothing.
+ */
+static void
+_base_fault_reset_work(struct work_struct *work)
+{
+	struct MPT3SAS_ADAPTER *ioc =
+	    container_of(work, struct MPT3SAS_ADAPTER, fault_reset_work.work);
+	unsigned long	 flags;
+	u32 doorbell;
+	int rc;
+	struct task_struct *p;
+
+
+	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+	if (ioc->shost_recovery)
+		goto rearm_timer;
+	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+
+	doorbell = mpt3sas_base_get_iocstate(ioc, 0);
+	if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) {
+		pr_err(MPT3SAS_FMT "SAS host is non-operational !!!!\n",
+		    ioc->name);
+
+		/*
+		 * Call _scsih_flush_pending_cmds callback so that we flush all
+		 * pending commands back to OS. This call is required to aovid
+		 * deadlock at block layer. Dead IOC will fail to do diag reset,
+		 * and this call is safe since dead ioc will never return any
+		 * command back from HW.
+		 */
+		ioc->schedule_dead_ioc_flush_running_cmds(ioc);
+		/*
+		 * Set remove_host flag early since kernel thread will
+		 * take some time to execute.
+		 */
+		ioc->remove_host = 1;
+		/*Remove the Dead Host */
+		p = kthread_run(mpt3sas_remove_dead_ioc_func, ioc,
+		    "mpt3sas_dead_ioc_%d", ioc->id);
+		if (IS_ERR(p))
+			pr_err(MPT3SAS_FMT
+			"%s: Running mpt3sas_dead_ioc thread failed !!!!\n",
+			ioc->name, __func__);
+		else
+			pr_err(MPT3SAS_FMT
+			"%s: Running mpt3sas_dead_ioc thread success !!!!\n",
+			ioc->name, __func__);
+		return; /* don't rearm timer */
+	}
+
+	if ((doorbell & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL) {
+		rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+		pr_warn(MPT3SAS_FMT "%s: hard reset: %s\n", ioc->name,
+		    __func__, (rc == 0) ? "success" : "failed");
+		doorbell = mpt3sas_base_get_iocstate(ioc, 0);
+		if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
+			mpt3sas_base_fault_info(ioc, doorbell &
+			    MPI2_DOORBELL_DATA_MASK);
+		if (rc && (doorbell & MPI2_IOC_STATE_MASK) !=
+		    MPI2_IOC_STATE_OPERATIONAL)
+			return; /* don't rearm timer */
+	}
+
+	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+ rearm_timer:
+	if (ioc->fault_reset_work_q)
+		queue_delayed_work(ioc->fault_reset_work_q,
+		    &ioc->fault_reset_work,
+		    msecs_to_jiffies(FAULT_POLLING_INTERVAL));
+	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+}
+
+/**
+ * mpt3sas_base_start_watchdog - start the fault_reset_work_q
+ * @ioc: per adapter object
+ * Context: sleep.
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc)
+{
+	unsigned long	 flags;
+
+	if (ioc->fault_reset_work_q)
+		return;
+
+	/* initialize fault polling */
+
+	INIT_DELAYED_WORK(&ioc->fault_reset_work, _base_fault_reset_work);
+	snprintf(ioc->fault_reset_work_q_name,
+	    sizeof(ioc->fault_reset_work_q_name), "poll_%d_status", ioc->id);
+	ioc->fault_reset_work_q =
+		create_singlethread_workqueue(ioc->fault_reset_work_q_name);
+	if (!ioc->fault_reset_work_q) {
+		pr_err(MPT3SAS_FMT "%s: failed (line=%d)\n",
+		    ioc->name, __func__, __LINE__);
+			return;
+	}
+	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+	if (ioc->fault_reset_work_q)
+		queue_delayed_work(ioc->fault_reset_work_q,
+		    &ioc->fault_reset_work,
+		    msecs_to_jiffies(FAULT_POLLING_INTERVAL));
+	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+}
+
+/**
+ * mpt3sas_base_stop_watchdog - stop the fault_reset_work_q
+ * @ioc: per adapter object
+ * Context: sleep.
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_stop_watchdog(struct MPT3SAS_ADAPTER *ioc)
+{
+	unsigned long flags;
+	struct workqueue_struct *wq;
+
+	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+	wq = ioc->fault_reset_work_q;
+	ioc->fault_reset_work_q = NULL;
+	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+	if (wq) {
+		if (!cancel_delayed_work(&ioc->fault_reset_work))
+			flush_workqueue(wq);
+		destroy_workqueue(wq);
+	}
+}
+
+/**
+ * mpt3sas_base_fault_info - verbose translation of firmware FAULT code
+ * @ioc: per adapter object
+ * @fault_code: fault code
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_fault_info(struct MPT3SAS_ADAPTER *ioc , u16 fault_code)
+{
+	pr_err(MPT3SAS_FMT "fault_state(0x%04x)!\n",
+	    ioc->name, fault_code);
+}
+
+/**
+ * mpt3sas_halt_firmware - halt's mpt controller firmware
+ * @ioc: per adapter object
+ *
+ * For debugging timeout related issues.  Writing 0xCOFFEE00
+ * to the doorbell register will halt controller firmware. With
+ * the purpose to stop both driver and firmware, the enduser can
+ * obtain a ring buffer from controller UART.
+ */
+void
+mpt3sas_halt_firmware(struct MPT3SAS_ADAPTER *ioc)
+{
+	u32 doorbell;
+
+	if (!ioc->fwfault_debug)
+		return;
+
+	dump_stack();
+
+	doorbell = readl(&ioc->chip->Doorbell);
+	if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
+		mpt3sas_base_fault_info(ioc , doorbell);
+	else {
+		writel(0xC0FFEE00, &ioc->chip->Doorbell);
+		pr_err(MPT3SAS_FMT "Firmware is halted due to command timeout\n",
+			ioc->name);
+	}
+
+	if (ioc->fwfault_debug == 2)
+		for (;;)
+			;
+	else
+		panic("panic in %s\n", __func__);
+}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _base_sas_ioc_info - verbose translation of the ioc status
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @request_hdr: request mf
+ *
+ * Return nothing.
+ */
+static void
+_base_sas_ioc_info(struct MPT3SAS_ADAPTER *ioc, MPI2DefaultReply_t *mpi_reply,
+	MPI2RequestHeader_t *request_hdr)
+{
+	u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	char *desc = NULL;
+	u16 frame_sz;
+	char *func_str = NULL;
+
+	/* SCSI_IO, RAID_PASS are handled from _scsih_scsi_ioc_info */
+	if (request_hdr->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
+	    request_hdr->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
+	    request_hdr->Function == MPI2_FUNCTION_EVENT_NOTIFICATION)
+		return;
+
+	if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+		return;
+
+	switch (ioc_status) {
+
+/****************************************************************************
+*  Common IOCStatus values for all replies
+****************************************************************************/
+
+	case MPI2_IOCSTATUS_INVALID_FUNCTION:
+		desc = "invalid function";
+		break;
+	case MPI2_IOCSTATUS_BUSY:
+		desc = "busy";
+		break;
+	case MPI2_IOCSTATUS_INVALID_SGL:
+		desc = "invalid sgl";
+		break;
+	case MPI2_IOCSTATUS_INTERNAL_ERROR:
+		desc = "internal error";
+		break;
+	case MPI2_IOCSTATUS_INVALID_VPID:
+		desc = "invalid vpid";
+		break;
+	case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
+		desc = "insufficient resources";
+		break;
+	case MPI2_IOCSTATUS_INVALID_FIELD:
+		desc = "invalid field";
+		break;
+	case MPI2_IOCSTATUS_INVALID_STATE:
+		desc = "invalid state";
+		break;
+	case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
+		desc = "op state not supported";
+		break;
+
+/****************************************************************************
+*  Config IOCStatus values
+****************************************************************************/
+
+	case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
+		desc = "config invalid action";
+		break;
+	case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
+		desc = "config invalid type";
+		break;
+	case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
+		desc = "config invalid page";
+		break;
+	case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
+		desc = "config invalid data";
+		break;
+	case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
+		desc = "config no defaults";
+		break;
+	case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
+		desc = "config cant commit";
+		break;
+
+/****************************************************************************
+*  SCSI IO Reply
+****************************************************************************/
+
+	case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
+	case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
+	case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
+	case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
+	case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
+	case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
+	case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
+	case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
+	case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
+	case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
+	case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
+	case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
+		break;
+
+/****************************************************************************
+*  For use by SCSI Initiator and SCSI Target end-to-end data protection
+****************************************************************************/
+
+	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
+		desc = "eedp guard error";
+		break;
+	case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
+		desc = "eedp ref tag error";
+		break;
+	case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
+		desc = "eedp app tag error";
+		break;
+
+/****************************************************************************
+*  SCSI Target values
+****************************************************************************/
+
+	case MPI2_IOCSTATUS_TARGET_INVALID_IO_INDEX:
+		desc = "target invalid io index";
+		break;
+	case MPI2_IOCSTATUS_TARGET_ABORTED:
+		desc = "target aborted";
+		break;
+	case MPI2_IOCSTATUS_TARGET_NO_CONN_RETRYABLE:
+		desc = "target no conn retryable";
+		break;
+	case MPI2_IOCSTATUS_TARGET_NO_CONNECTION:
+		desc = "target no connection";
+		break;
+	case MPI2_IOCSTATUS_TARGET_XFER_COUNT_MISMATCH:
+		desc = "target xfer count mismatch";
+		break;
+	case MPI2_IOCSTATUS_TARGET_DATA_OFFSET_ERROR:
+		desc = "target data offset error";
+		break;
+	case MPI2_IOCSTATUS_TARGET_TOO_MUCH_WRITE_DATA:
+		desc = "target too much write data";
+		break;
+	case MPI2_IOCSTATUS_TARGET_IU_TOO_SHORT:
+		desc = "target iu too short";
+		break;
+	case MPI2_IOCSTATUS_TARGET_ACK_NAK_TIMEOUT:
+		desc = "target ack nak timeout";
+		break;
+	case MPI2_IOCSTATUS_TARGET_NAK_RECEIVED:
+		desc = "target nak received";
+		break;
+
+/****************************************************************************
+*  Serial Attached SCSI values
+****************************************************************************/
+
+	case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
+		desc = "smp request failed";
+		break;
+	case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
+		desc = "smp data overrun";
+		break;
+
+/****************************************************************************
+*  Diagnostic Buffer Post / Diagnostic Release values
+****************************************************************************/
+
+	case MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED:
+		desc = "diagnostic released";
+		break;
+	default:
+		break;
+	}
+
+	if (!desc)
+		return;
+
+	switch (request_hdr->Function) {
+	case MPI2_FUNCTION_CONFIG:
+		frame_sz = sizeof(Mpi2ConfigRequest_t) + ioc->sge_size;
+		func_str = "config_page";
+		break;
+	case MPI2_FUNCTION_SCSI_TASK_MGMT:
+		frame_sz = sizeof(Mpi2SCSITaskManagementRequest_t);
+		func_str = "task_mgmt";
+		break;
+	case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
+		frame_sz = sizeof(Mpi2SasIoUnitControlRequest_t);
+		func_str = "sas_iounit_ctl";
+		break;
+	case MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR:
+		frame_sz = sizeof(Mpi2SepRequest_t);
+		func_str = "enclosure";
+		break;
+	case MPI2_FUNCTION_IOC_INIT:
+		frame_sz = sizeof(Mpi2IOCInitRequest_t);
+		func_str = "ioc_init";
+		break;
+	case MPI2_FUNCTION_PORT_ENABLE:
+		frame_sz = sizeof(Mpi2PortEnableRequest_t);
+		func_str = "port_enable";
+		break;
+	case MPI2_FUNCTION_SMP_PASSTHROUGH:
+		frame_sz = sizeof(Mpi2SmpPassthroughRequest_t) + ioc->sge_size;
+		func_str = "smp_passthru";
+		break;
+	default:
+		frame_sz = 32;
+		func_str = "unknown";
+		break;
+	}
+
+	pr_warn(MPT3SAS_FMT "ioc_status: %s(0x%04x), request(0x%p),(%s)\n",
+		ioc->name, desc, ioc_status, request_hdr, func_str);
+
+	_debug_dump_mf(request_hdr, frame_sz/4);
+}
+
+/**
+ * _base_display_event_data - verbose translation of firmware asyn events
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ *
+ * Return nothing.
+ */
+static void
+_base_display_event_data(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventNotificationReply_t *mpi_reply)
+{
+	char *desc = NULL;
+	u16 event;
+
+	if (!(ioc->logging_level & MPT_DEBUG_EVENTS))
+		return;
+
+	event = le16_to_cpu(mpi_reply->Event);
+
+	switch (event) {
+	case MPI2_EVENT_LOG_DATA:
+		desc = "Log Data";
+		break;
+	case MPI2_EVENT_STATE_CHANGE:
+		desc = "Status Change";
+		break;
+	case MPI2_EVENT_HARD_RESET_RECEIVED:
+		desc = "Hard Reset Received";
+		break;
+	case MPI2_EVENT_EVENT_CHANGE:
+		desc = "Event Change";
+		break;
+	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
+		desc = "Device Status Change";
+		break;
+	case MPI2_EVENT_IR_OPERATION_STATUS:
+		desc = "IR Operation Status";
+		break;
+	case MPI2_EVENT_SAS_DISCOVERY:
+	{
+		Mpi2EventDataSasDiscovery_t *event_data =
+		    (Mpi2EventDataSasDiscovery_t *)mpi_reply->EventData;
+		pr_info(MPT3SAS_FMT "Discovery: (%s)", ioc->name,
+		    (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
+		    "start" : "stop");
+		if (event_data->DiscoveryStatus)
+			pr_info("discovery_status(0x%08x)",
+			    le32_to_cpu(event_data->DiscoveryStatus));
+			pr_info("\n");
+		return;
+	}
+	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
+		desc = "SAS Broadcast Primitive";
+		break;
+	case MPI2_EVENT_SAS_INIT_DEVICE_STATUS_CHANGE:
+		desc = "SAS Init Device Status Change";
+		break;
+	case MPI2_EVENT_SAS_INIT_TABLE_OVERFLOW:
+		desc = "SAS Init Table Overflow";
+		break;
+	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
+		desc = "SAS Topology Change List";
+		break;
+	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
+		desc = "SAS Enclosure Device Status Change";
+		break;
+	case MPI2_EVENT_IR_VOLUME:
+		desc = "IR Volume";
+		break;
+	case MPI2_EVENT_IR_PHYSICAL_DISK:
+		desc = "IR Physical Disk";
+		break;
+	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
+		desc = "IR Configuration Change List";
+		break;
+	case MPI2_EVENT_LOG_ENTRY_ADDED:
+		desc = "Log Entry Added";
+		break;
+	}
+
+	if (!desc)
+		return;
+
+	pr_info(MPT3SAS_FMT "%s\n", ioc->name, desc);
+}
+#endif
+
+/**
+ * _base_sas_log_info - verbose translation of firmware log info
+ * @ioc: per adapter object
+ * @log_info: log info
+ *
+ * Return nothing.
+ */
+static void
+_base_sas_log_info(struct MPT3SAS_ADAPTER *ioc , u32 log_info)
+{
+	union loginfo_type {
+		u32	loginfo;
+		struct {
+			u32	subcode:16;
+			u32	code:8;
+			u32	originator:4;
+			u32	bus_type:4;
+		} dw;
+	};
+	union loginfo_type sas_loginfo;
+	char *originator_str = NULL;
+
+	sas_loginfo.loginfo = log_info;
+	if (sas_loginfo.dw.bus_type != 3 /*SAS*/)
+		return;
+
+	/* each nexus loss loginfo */
+	if (log_info == 0x31170000)
+		return;
+
+	/* eat the loginfos associated with task aborts */
+	if (ioc->ignore_loginfos && (log_info == 0x30050000 || log_info ==
+	    0x31140000 || log_info == 0x31130000))
+		return;
+
+	switch (sas_loginfo.dw.originator) {
+	case 0:
+		originator_str = "IOP";
+		break;
+	case 1:
+		originator_str = "PL";
+		break;
+	case 2:
+		originator_str = "IR";
+		break;
+	}
+
+	pr_warn(MPT3SAS_FMT
+		"log_info(0x%08x): originator(%s), code(0x%02x), sub_code(0x%04x)\n",
+		ioc->name, log_info,
+	     originator_str, sas_loginfo.dw.code,
+	     sas_loginfo.dw.subcode);
+}
+
+/**
+ * _base_display_reply_info -
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Return nothing.
+ */
+static void
+_base_display_reply_info(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+	u16 ioc_status;
+	u32 loginfo = 0;
+
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (unlikely(!mpi_reply)) {
+		pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if ((ioc_status & MPI2_IOCSTATUS_MASK) &&
+	    (ioc->logging_level & MPT_DEBUG_REPLY)) {
+		_base_sas_ioc_info(ioc , mpi_reply,
+		   mpt3sas_base_get_msg_frame(ioc, smid));
+	}
+#endif
+	if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
+		loginfo = le32_to_cpu(mpi_reply->IOCLogInfo);
+		_base_sas_log_info(ioc, loginfo);
+	}
+
+	if (ioc_status || loginfo) {
+		ioc_status &= MPI2_IOCSTATUS_MASK;
+		mpt3sas_trigger_mpi(ioc, ioc_status, loginfo);
+	}
+}
+
+/**
+ * mpt3sas_base_done - base internal command completion routine
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_base_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK)
+		return 1;
+
+	if (ioc->base_cmds.status == MPT3_CMD_NOT_USED)
+		return 1;
+
+	ioc->base_cmds.status |= MPT3_CMD_COMPLETE;
+	if (mpi_reply) {
+		ioc->base_cmds.status |= MPT3_CMD_REPLY_VALID;
+		memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
+	}
+	ioc->base_cmds.status &= ~MPT3_CMD_PENDING;
+
+	complete(&ioc->base_cmds.done);
+	return 1;
+}
+
+/**
+ * _base_async_event - main callback handler for firmware asyn events
+ * @ioc: per adapter object
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_base_async_event(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
+{
+	Mpi2EventNotificationReply_t *mpi_reply;
+	Mpi2EventAckRequest_t *ack_request;
+	u16 smid;
+
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (!mpi_reply)
+		return 1;
+	if (mpi_reply->Function != MPI2_FUNCTION_EVENT_NOTIFICATION)
+		return 1;
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	_base_display_event_data(ioc, mpi_reply);
+#endif
+	if (!(mpi_reply->AckRequired & MPI2_EVENT_NOTIFICATION_ACK_REQUIRED))
+		goto out;
+	smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		goto out;
+	}
+
+	ack_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memset(ack_request, 0, sizeof(Mpi2EventAckRequest_t));
+	ack_request->Function = MPI2_FUNCTION_EVENT_ACK;
+	ack_request->Event = mpi_reply->Event;
+	ack_request->EventContext = mpi_reply->EventContext;
+	ack_request->VF_ID = 0;  /* TODO */
+	ack_request->VP_ID = 0;
+	mpt3sas_base_put_smid_default(ioc, smid);
+
+ out:
+
+	/* scsih callback handler */
+	mpt3sas_scsih_event_callback(ioc, msix_index, reply);
+
+	/* ctl callback handler */
+	mpt3sas_ctl_event_callback(ioc, msix_index, reply);
+
+	return 1;
+}
+
+/**
+ * _base_get_cb_idx - obtain the callback index
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Return callback index.
+ */
+static u8
+_base_get_cb_idx(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	int i;
+	u8 cb_idx;
+
+	if (smid < ioc->hi_priority_smid) {
+		i = smid - 1;
+		cb_idx = ioc->scsi_lookup[i].cb_idx;
+	} else if (smid < ioc->internal_smid) {
+		i = smid - ioc->hi_priority_smid;
+		cb_idx = ioc->hpr_lookup[i].cb_idx;
+	} else if (smid <= ioc->hba_queue_depth) {
+		i = smid - ioc->internal_smid;
+		cb_idx = ioc->internal_lookup[i].cb_idx;
+	} else
+		cb_idx = 0xFF;
+	return cb_idx;
+}
+
+/**
+ * _base_mask_interrupts - disable interrupts
+ * @ioc: per adapter object
+ *
+ * Disabling ResetIRQ, Reply and Doorbell Interrupts
+ *
+ * Return nothing.
+ */
+static void
+_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc)
+{
+	u32 him_register;
+
+	ioc->mask_interrupts = 1;
+	him_register = readl(&ioc->chip->HostInterruptMask);
+	him_register |= MPI2_HIM_DIM + MPI2_HIM_RIM + MPI2_HIM_RESET_IRQ_MASK;
+	writel(him_register, &ioc->chip->HostInterruptMask);
+	readl(&ioc->chip->HostInterruptMask);
+}
+
+/**
+ * _base_unmask_interrupts - enable interrupts
+ * @ioc: per adapter object
+ *
+ * Enabling only Reply Interrupts
+ *
+ * Return nothing.
+ */
+static void
+_base_unmask_interrupts(struct MPT3SAS_ADAPTER *ioc)
+{
+	u32 him_register;
+
+	him_register = readl(&ioc->chip->HostInterruptMask);
+	him_register &= ~MPI2_HIM_RIM;
+	writel(him_register, &ioc->chip->HostInterruptMask);
+	ioc->mask_interrupts = 0;
+}
+
+union reply_descriptor {
+	u64 word;
+	struct {
+		u32 low;
+		u32 high;
+	} u;
+};
+
+/**
+ * _base_interrupt - MPT adapter (IOC) specific interrupt handler.
+ * @irq: irq number (not used)
+ * @bus_id: bus identifier cookie == pointer to MPT_ADAPTER structure
+ * @r: pt_regs pointer (not used)
+ *
+ * Return IRQ_HANDLE if processed, else IRQ_NONE.
+ */
+static irqreturn_t
+_base_interrupt(int irq, void *bus_id)
+{
+	struct adapter_reply_queue *reply_q = bus_id;
+	union reply_descriptor rd;
+	u32 completed_cmds;
+	u8 request_desript_type;
+	u16 smid;
+	u8 cb_idx;
+	u32 reply;
+	u8 msix_index = reply_q->msix_index;
+	struct MPT3SAS_ADAPTER *ioc = reply_q->ioc;
+	Mpi2ReplyDescriptorsUnion_t *rpf;
+	u8 rc;
+
+	if (ioc->mask_interrupts)
+		return IRQ_NONE;
+
+	if (!atomic_add_unless(&reply_q->busy, 1, 1))
+		return IRQ_NONE;
+
+	rpf = &reply_q->reply_post_free[reply_q->reply_post_host_index];
+	request_desript_type = rpf->Default.ReplyFlags
+	     & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
+	if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED) {
+		atomic_dec(&reply_q->busy);
+		return IRQ_NONE;
+	}
+
+	completed_cmds = 0;
+	cb_idx = 0xFF;
+	do {
+		rd.word = le64_to_cpu(rpf->Words);
+		if (rd.u.low == UINT_MAX || rd.u.high == UINT_MAX)
+			goto out;
+		reply = 0;
+		smid = le16_to_cpu(rpf->Default.DescriptorTypeDependent1);
+		if (request_desript_type ==
+		    MPI25_RPY_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO_SUCCESS ||
+		    request_desript_type ==
+		    MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS) {
+			cb_idx = _base_get_cb_idx(ioc, smid);
+			if ((likely(cb_idx < MPT_MAX_CALLBACKS)) &&
+			    (likely(mpt_callbacks[cb_idx] != NULL))) {
+				rc = mpt_callbacks[cb_idx](ioc, smid,
+				    msix_index, 0);
+				if (rc)
+					mpt3sas_base_free_smid(ioc, smid);
+			}
+		} else if (request_desript_type ==
+		    MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
+			reply = le32_to_cpu(
+			    rpf->AddressReply.ReplyFrameAddress);
+			if (reply > ioc->reply_dma_max_address ||
+			    reply < ioc->reply_dma_min_address)
+				reply = 0;
+			if (smid) {
+				cb_idx = _base_get_cb_idx(ioc, smid);
+				if ((likely(cb_idx < MPT_MAX_CALLBACKS)) &&
+				    (likely(mpt_callbacks[cb_idx] != NULL))) {
+					rc = mpt_callbacks[cb_idx](ioc, smid,
+					    msix_index, reply);
+					if (reply)
+						_base_display_reply_info(ioc,
+						    smid, msix_index, reply);
+					if (rc)
+						mpt3sas_base_free_smid(ioc,
+						    smid);
+				}
+			} else {
+				_base_async_event(ioc, msix_index, reply);
+			}
+
+			/* reply free queue handling */
+			if (reply) {
+				ioc->reply_free_host_index =
+				    (ioc->reply_free_host_index ==
+				    (ioc->reply_free_queue_depth - 1)) ?
+				    0 : ioc->reply_free_host_index + 1;
+				ioc->reply_free[ioc->reply_free_host_index] =
+				    cpu_to_le32(reply);
+				wmb();
+				writel(ioc->reply_free_host_index,
+				    &ioc->chip->ReplyFreeHostIndex);
+			}
+		}
+
+		rpf->Words = cpu_to_le64(ULLONG_MAX);
+		reply_q->reply_post_host_index =
+		    (reply_q->reply_post_host_index ==
+		    (ioc->reply_post_queue_depth - 1)) ? 0 :
+		    reply_q->reply_post_host_index + 1;
+		request_desript_type =
+		    reply_q->reply_post_free[reply_q->reply_post_host_index].
+		    Default.ReplyFlags & MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
+		completed_cmds++;
+		if (request_desript_type == MPI2_RPY_DESCRIPT_FLAGS_UNUSED)
+			goto out;
+		if (!reply_q->reply_post_host_index)
+			rpf = reply_q->reply_post_free;
+		else
+			rpf++;
+	} while (1);
+
+ out:
+
+	if (!completed_cmds) {
+		atomic_dec(&reply_q->busy);
+		return IRQ_NONE;
+	}
+
+	wmb();
+	writel(reply_q->reply_post_host_index | (msix_index <<
+	    MPI2_RPHI_MSIX_INDEX_SHIFT), &ioc->chip->ReplyPostHostIndex);
+	atomic_dec(&reply_q->busy);
+	return IRQ_HANDLED;
+}
+
+/**
+ * _base_is_controller_msix_enabled - is controller support muli-reply queues
+ * @ioc: per adapter object
+ *
+ */
+static inline int
+_base_is_controller_msix_enabled(struct MPT3SAS_ADAPTER *ioc)
+{
+	return (ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable;
+}
+
+/**
+ * mpt3sas_base_flush_reply_queues - flushing the MSIX reply queues
+ * @ioc: per adapter object
+ * Context: ISR conext
+ *
+ * Called when a Task Management request has completed. We want
+ * to flush the other reply queues so all the outstanding IO has been
+ * completed back to OS before we process the TM completetion.
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_flush_reply_queues(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct adapter_reply_queue *reply_q;
+
+	/* If MSIX capability is turned off
+	 * then multi-queues are not enabled
+	 */
+	if (!_base_is_controller_msix_enabled(ioc))
+		return;
+
+	list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
+		if (ioc->shost_recovery)
+			return;
+		/* TMs are on msix_index == 0 */
+		if (reply_q->msix_index == 0)
+			continue;
+		_base_interrupt(reply_q->vector, (void *)reply_q);
+	}
+}
+
+/**
+ * mpt3sas_base_release_callback_handler - clear interrupt callback handler
+ * @cb_idx: callback index
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_release_callback_handler(u8 cb_idx)
+{
+	mpt_callbacks[cb_idx] = NULL;
+}
+
+/**
+ * mpt3sas_base_register_callback_handler - obtain index for the interrupt callback handler
+ * @cb_func: callback function
+ *
+ * Returns cb_func.
+ */
+u8
+mpt3sas_base_register_callback_handler(MPT_CALLBACK cb_func)
+{
+	u8 cb_idx;
+
+	for (cb_idx = MPT_MAX_CALLBACKS-1; cb_idx; cb_idx--)
+		if (mpt_callbacks[cb_idx] == NULL)
+			break;
+
+	mpt_callbacks[cb_idx] = cb_func;
+	return cb_idx;
+}
+
+/**
+ * mpt3sas_base_initialize_callback_handler - initialize the interrupt callback handler
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_initialize_callback_handler(void)
+{
+	u8 cb_idx;
+
+	for (cb_idx = 0; cb_idx < MPT_MAX_CALLBACKS; cb_idx++)
+		mpt3sas_base_release_callback_handler(cb_idx);
+}
+
+
+/**
+ * _base_build_zero_len_sge - build zero length sg entry
+ * @ioc: per adapter object
+ * @paddr: virtual address for SGE
+ *
+ * Create a zero length scatter gather entry to insure the IOCs hardware has
+ * something to use if the target device goes brain dead and tries
+ * to send data even when none is asked for.
+ *
+ * Return nothing.
+ */
+static void
+_base_build_zero_len_sge(struct MPT3SAS_ADAPTER *ioc, void *paddr)
+{
+	u32 flags_length = (u32)((MPI2_SGE_FLAGS_LAST_ELEMENT |
+	    MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_END_OF_LIST |
+	    MPI2_SGE_FLAGS_SIMPLE_ELEMENT) <<
+	    MPI2_SGE_FLAGS_SHIFT);
+	ioc->base_add_sg_single(paddr, flags_length, -1);
+}
+
+/**
+ * _base_add_sg_single_32 - Place a simple 32 bit SGE at address pAddr.
+ * @paddr: virtual address for SGE
+ * @flags_length: SGE flags and data transfer length
+ * @dma_addr: Physical address
+ *
+ * Return nothing.
+ */
+static void
+_base_add_sg_single_32(void *paddr, u32 flags_length, dma_addr_t dma_addr)
+{
+	Mpi2SGESimple32_t *sgel = paddr;
+
+	flags_length |= (MPI2_SGE_FLAGS_32_BIT_ADDRESSING |
+	    MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
+	sgel->FlagsLength = cpu_to_le32(flags_length);
+	sgel->Address = cpu_to_le32(dma_addr);
+}
+
+
+/**
+ * _base_add_sg_single_64 - Place a simple 64 bit SGE at address pAddr.
+ * @paddr: virtual address for SGE
+ * @flags_length: SGE flags and data transfer length
+ * @dma_addr: Physical address
+ *
+ * Return nothing.
+ */
+static void
+_base_add_sg_single_64(void *paddr, u32 flags_length, dma_addr_t dma_addr)
+{
+	Mpi2SGESimple64_t *sgel = paddr;
+
+	flags_length |= (MPI2_SGE_FLAGS_64_BIT_ADDRESSING |
+	    MPI2_SGE_FLAGS_SYSTEM_ADDRESS) << MPI2_SGE_FLAGS_SHIFT;
+	sgel->FlagsLength = cpu_to_le32(flags_length);
+	sgel->Address = cpu_to_le64(dma_addr);
+}
+
+/**
+ * _base_get_chain_buffer_tracker - obtain chain tracker
+ * @ioc: per adapter object
+ * @smid: smid associated to an IO request
+ *
+ * Returns chain tracker(from ioc->free_chain_list)
+ */
+static struct chain_tracker *
+_base_get_chain_buffer_tracker(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	struct chain_tracker *chain_req;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	if (list_empty(&ioc->free_chain_list)) {
+		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+		dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+			"chain buffers not available\n", ioc->name));
+		return NULL;
+	}
+	chain_req = list_entry(ioc->free_chain_list.next,
+	    struct chain_tracker, tracker_list);
+	list_del_init(&chain_req->tracker_list);
+	list_add_tail(&chain_req->tracker_list,
+	    &ioc->scsi_lookup[smid - 1].chain_list);
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	return chain_req;
+}
+
+
+/**
+ * _base_build_sg - build generic sg
+ * @ioc: per adapter object
+ * @psge: virtual address for SGE
+ * @data_out_dma: physical address for WRITES
+ * @data_out_sz: data xfer size for WRITES
+ * @data_in_dma: physical address for READS
+ * @data_in_sz: data xfer size for READS
+ *
+ * Return nothing.
+ */
+static void
+_base_build_sg(struct MPT3SAS_ADAPTER *ioc, void *psge,
+	dma_addr_t data_out_dma, size_t data_out_sz, dma_addr_t data_in_dma,
+	size_t data_in_sz)
+{
+	u32 sgl_flags;
+
+	if (!data_out_sz && !data_in_sz) {
+		_base_build_zero_len_sge(ioc, psge);
+		return;
+	}
+
+	if (data_out_sz && data_in_sz) {
+		/* WRITE sgel first */
+		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
+		    MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
+		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
+		ioc->base_add_sg_single(psge, sgl_flags |
+		    data_out_sz, data_out_dma);
+
+		/* incr sgel */
+		psge += ioc->sge_size;
+
+		/* READ sgel last */
+		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
+		    MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
+		    MPI2_SGE_FLAGS_END_OF_LIST);
+		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
+		ioc->base_add_sg_single(psge, sgl_flags |
+		    data_in_sz, data_in_dma);
+	} else if (data_out_sz) /* WRITE */ {
+		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
+		    MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
+		    MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC);
+		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
+		ioc->base_add_sg_single(psge, sgl_flags |
+		    data_out_sz, data_out_dma);
+	} else if (data_in_sz) /* READ */ {
+		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
+		    MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
+		    MPI2_SGE_FLAGS_END_OF_LIST);
+		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
+		ioc->base_add_sg_single(psge, sgl_flags |
+		    data_in_sz, data_in_dma);
+	}
+}
+
+/* IEEE format sgls */
+
+/**
+ * _base_add_sg_single_ieee - add sg element for IEEE format
+ * @paddr: virtual address for SGE
+ * @flags: SGE flags
+ * @chain_offset: number of 128 byte elements from start of segment
+ * @length: data transfer length
+ * @dma_addr: Physical address
+ *
+ * Return nothing.
+ */
+static void
+_base_add_sg_single_ieee(void *paddr, u8 flags, u8 chain_offset, u32 length,
+	dma_addr_t dma_addr)
+{
+	Mpi25IeeeSgeChain64_t *sgel = paddr;
+
+	sgel->Flags = flags;
+	sgel->NextChainOffset = chain_offset;
+	sgel->Length = cpu_to_le32(length);
+	sgel->Address = cpu_to_le64(dma_addr);
+}
+
+/**
+ * _base_build_zero_len_sge_ieee - build zero length sg entry for IEEE format
+ * @ioc: per adapter object
+ * @paddr: virtual address for SGE
+ *
+ * Create a zero length scatter gather entry to insure the IOCs hardware has
+ * something to use if the target device goes brain dead and tries
+ * to send data even when none is asked for.
+ *
+ * Return nothing.
+ */
+static void
+_base_build_zero_len_sge_ieee(struct MPT3SAS_ADAPTER *ioc, void *paddr)
+{
+	u8 sgl_flags = (MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
+		MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR |
+		MPI25_IEEE_SGE_FLAGS_END_OF_LIST);
+	_base_add_sg_single_ieee(paddr, sgl_flags, 0, 0, -1);
+}
+
+/**
+ * _base_build_sg_scmd_ieee - main sg creation routine for IEEE format
+ * @ioc: per adapter object
+ * @scmd: scsi command
+ * @smid: system request message index
+ * Context: none.
+ *
+ * The main routine that builds scatter gather table from a given
+ * scsi request sent via the .queuecommand main handler.
+ *
+ * Returns 0 success, anything else error
+ */
+static int
+_base_build_sg_scmd_ieee(struct MPT3SAS_ADAPTER *ioc,
+	struct scsi_cmnd *scmd, u16 smid)
+{
+	Mpi2SCSIIORequest_t *mpi_request;
+	dma_addr_t chain_dma;
+	struct scatterlist *sg_scmd;
+	void *sg_local, *chain;
+	u32 chain_offset;
+	u32 chain_length;
+	u32 chain_flags;
+	int sges_left;
+	u32 sges_in_segment;
+	u8 simple_sgl_flags;
+	u8 simple_sgl_flags_last;
+	u8 chain_sgl_flags;
+	struct chain_tracker *chain_req;
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+
+	/* init scatter gather flags */
+	simple_sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
+	    MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
+	simple_sgl_flags_last = simple_sgl_flags |
+	    MPI25_IEEE_SGE_FLAGS_END_OF_LIST;
+	chain_sgl_flags = MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
+	    MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
+
+	sg_scmd = scsi_sglist(scmd);
+	sges_left = scsi_dma_map(scmd);
+	if (!sges_left) {
+		sdev_printk(KERN_ERR, scmd->device,
+			"pci_map_sg failed: request for %d bytes!\n",
+			scsi_bufflen(scmd));
+		return -ENOMEM;
+	}
+
+	sg_local = &mpi_request->SGL;
+	sges_in_segment = (ioc->request_sz -
+	    offsetof(Mpi2SCSIIORequest_t, SGL))/ioc->sge_size_ieee;
+	if (sges_left <= sges_in_segment)
+		goto fill_in_last_segment;
+
+	mpi_request->ChainOffset = (sges_in_segment - 1 /* chain element */) +
+	    (offsetof(Mpi2SCSIIORequest_t, SGL)/ioc->sge_size_ieee);
+
+	/* fill in main message segment when there is a chain following */
+	while (sges_in_segment > 1) {
+		_base_add_sg_single_ieee(sg_local, simple_sgl_flags, 0,
+		    sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
+		sg_scmd = sg_next(sg_scmd);
+		sg_local += ioc->sge_size_ieee;
+		sges_left--;
+		sges_in_segment--;
+	}
+
+	/* initializing the chain flags and pointers */
+	chain_flags = MPI2_SGE_FLAGS_CHAIN_ELEMENT << MPI2_SGE_FLAGS_SHIFT;
+	chain_req = _base_get_chain_buffer_tracker(ioc, smid);
+	if (!chain_req)
+		return -1;
+	chain = chain_req->chain_buffer;
+	chain_dma = chain_req->chain_buffer_dma;
+	do {
+		sges_in_segment = (sges_left <=
+		    ioc->max_sges_in_chain_message) ? sges_left :
+		    ioc->max_sges_in_chain_message;
+		chain_offset = (sges_left == sges_in_segment) ?
+		    0 : sges_in_segment;
+		chain_length = sges_in_segment * ioc->sge_size_ieee;
+		if (chain_offset)
+			chain_length += ioc->sge_size_ieee;
+		_base_add_sg_single_ieee(sg_local, chain_sgl_flags,
+		    chain_offset, chain_length, chain_dma);
+
+		sg_local = chain;
+		if (!chain_offset)
+			goto fill_in_last_segment;
+
+		/* fill in chain segments */
+		while (sges_in_segment) {
+			_base_add_sg_single_ieee(sg_local, simple_sgl_flags, 0,
+			    sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
+			sg_scmd = sg_next(sg_scmd);
+			sg_local += ioc->sge_size_ieee;
+			sges_left--;
+			sges_in_segment--;
+		}
+
+		chain_req = _base_get_chain_buffer_tracker(ioc, smid);
+		if (!chain_req)
+			return -1;
+		chain = chain_req->chain_buffer;
+		chain_dma = chain_req->chain_buffer_dma;
+	} while (1);
+
+
+ fill_in_last_segment:
+
+	/* fill the last segment */
+	while (sges_left) {
+		if (sges_left == 1)
+			_base_add_sg_single_ieee(sg_local,
+			    simple_sgl_flags_last, 0, sg_dma_len(sg_scmd),
+			    sg_dma_address(sg_scmd));
+		else
+			_base_add_sg_single_ieee(sg_local, simple_sgl_flags, 0,
+			    sg_dma_len(sg_scmd), sg_dma_address(sg_scmd));
+		sg_scmd = sg_next(sg_scmd);
+		sg_local += ioc->sge_size_ieee;
+		sges_left--;
+	}
+
+	return 0;
+}
+
+/**
+ * _base_build_sg_ieee - build generic sg for IEEE format
+ * @ioc: per adapter object
+ * @psge: virtual address for SGE
+ * @data_out_dma: physical address for WRITES
+ * @data_out_sz: data xfer size for WRITES
+ * @data_in_dma: physical address for READS
+ * @data_in_sz: data xfer size for READS
+ *
+ * Return nothing.
+ */
+static void
+_base_build_sg_ieee(struct MPT3SAS_ADAPTER *ioc, void *psge,
+	dma_addr_t data_out_dma, size_t data_out_sz, dma_addr_t data_in_dma,
+	size_t data_in_sz)
+{
+	u8 sgl_flags;
+
+	if (!data_out_sz && !data_in_sz) {
+		_base_build_zero_len_sge_ieee(ioc, psge);
+		return;
+	}
+
+	if (data_out_sz && data_in_sz) {
+		/* WRITE sgel first */
+		sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
+		    MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
+		_base_add_sg_single_ieee(psge, sgl_flags, 0, data_out_sz,
+		    data_out_dma);
+
+		/* incr sgel */
+		psge += ioc->sge_size_ieee;
+
+		/* READ sgel last */
+		sgl_flags |= MPI25_IEEE_SGE_FLAGS_END_OF_LIST;
+		_base_add_sg_single_ieee(psge, sgl_flags, 0, data_in_sz,
+		    data_in_dma);
+	} else if (data_out_sz) /* WRITE */ {
+		sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
+		    MPI25_IEEE_SGE_FLAGS_END_OF_LIST |
+		    MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
+		_base_add_sg_single_ieee(psge, sgl_flags, 0, data_out_sz,
+		    data_out_dma);
+	} else if (data_in_sz) /* READ */ {
+		sgl_flags = MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
+		    MPI25_IEEE_SGE_FLAGS_END_OF_LIST |
+		    MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
+		_base_add_sg_single_ieee(psge, sgl_flags, 0, data_in_sz,
+		    data_in_dma);
+	}
+}
+
+#define convert_to_kb(x) ((x) << (PAGE_SHIFT - 10))
+
+/**
+ * _base_config_dma_addressing - set dma addressing
+ * @ioc: per adapter object
+ * @pdev: PCI device struct
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_config_dma_addressing(struct MPT3SAS_ADAPTER *ioc, struct pci_dev *pdev)
+{
+	struct sysinfo s;
+	char *desc = NULL;
+
+	if (sizeof(dma_addr_t) > 4) {
+		const uint64_t required_mask =
+		    dma_get_required_mask(&pdev->dev);
+		if ((required_mask > DMA_BIT_MASK(32)) &&
+		    !pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
+		    !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
+			ioc->base_add_sg_single = &_base_add_sg_single_64;
+			ioc->sge_size = sizeof(Mpi2SGESimple64_t);
+			desc = "64";
+			goto out;
+		}
+	}
+
+	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))
+	    && !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) {
+		ioc->base_add_sg_single = &_base_add_sg_single_32;
+		ioc->sge_size = sizeof(Mpi2SGESimple32_t);
+		desc = "32";
+	} else
+		return -ENODEV;
+
+ out:
+	si_meminfo(&s);
+	pr_info(MPT3SAS_FMT
+		"%s BIT PCI BUS DMA ADDRESSING SUPPORTED, total mem (%ld kB)\n",
+		ioc->name, desc, convert_to_kb(s.totalram));
+
+	return 0;
+}
+
+/**
+ * _base_check_enable_msix - checks MSIX capabable.
+ * @ioc: per adapter object
+ *
+ * Check to see if card is capable of MSIX, and set number
+ * of available msix vectors
+ */
+static int
+_base_check_enable_msix(struct MPT3SAS_ADAPTER *ioc)
+{
+	int base;
+	u16 message_control;
+
+	base = pci_find_capability(ioc->pdev, PCI_CAP_ID_MSIX);
+	if (!base) {
+		dfailprintk(ioc, pr_info(MPT3SAS_FMT "msix not supported\n",
+			ioc->name));
+		return -EINVAL;
+	}
+
+	/* get msix vector count */
+
+	pci_read_config_word(ioc->pdev, base + 2, &message_control);
+	ioc->msix_vector_count = (message_control & 0x3FF) + 1;
+	if (ioc->msix_vector_count > 8)
+		ioc->msix_vector_count = 8;
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"msix is supported, vector_count(%d)\n",
+		ioc->name, ioc->msix_vector_count));
+	return 0;
+}
+
+/**
+ * _base_free_irq - free irq
+ * @ioc: per adapter object
+ *
+ * Freeing respective reply_queue from the list.
+ */
+static void
+_base_free_irq(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct adapter_reply_queue *reply_q, *next;
+
+	if (list_empty(&ioc->reply_queue_list))
+		return;
+
+	list_for_each_entry_safe(reply_q, next, &ioc->reply_queue_list, list) {
+		list_del(&reply_q->list);
+		synchronize_irq(reply_q->vector);
+		free_irq(reply_q->vector, reply_q);
+		kfree(reply_q);
+	}
+}
+
+/**
+ * _base_request_irq - request irq
+ * @ioc: per adapter object
+ * @index: msix index into vector table
+ * @vector: irq vector
+ *
+ * Inserting respective reply_queue into the list.
+ */
+static int
+_base_request_irq(struct MPT3SAS_ADAPTER *ioc, u8 index, u32 vector)
+{
+	struct adapter_reply_queue *reply_q;
+	int r;
+
+	reply_q =  kzalloc(sizeof(struct adapter_reply_queue), GFP_KERNEL);
+	if (!reply_q) {
+		pr_err(MPT3SAS_FMT "unable to allocate memory %d!\n",
+		    ioc->name, (int)sizeof(struct adapter_reply_queue));
+		return -ENOMEM;
+	}
+	reply_q->ioc = ioc;
+	reply_q->msix_index = index;
+	reply_q->vector = vector;
+	atomic_set(&reply_q->busy, 0);
+	if (ioc->msix_enable)
+		snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d-msix%d",
+		    MPT3SAS_DRIVER_NAME, ioc->id, index);
+	else
+		snprintf(reply_q->name, MPT_NAME_LENGTH, "%s%d",
+		    MPT3SAS_DRIVER_NAME, ioc->id);
+	r = request_irq(vector, _base_interrupt, IRQF_SHARED, reply_q->name,
+	    reply_q);
+	if (r) {
+		pr_err(MPT3SAS_FMT "unable to allocate interrupt %d!\n",
+		    reply_q->name, vector);
+		kfree(reply_q);
+		return -EBUSY;
+	}
+
+	INIT_LIST_HEAD(&reply_q->list);
+	list_add_tail(&reply_q->list, &ioc->reply_queue_list);
+	return 0;
+}
+
+/**
+ * _base_assign_reply_queues - assigning msix index for each cpu
+ * @ioc: per adapter object
+ *
+ * The enduser would need to set the affinity via /proc/irq/#/smp_affinity
+ *
+ * It would nice if we could call irq_set_affinity, however it is not
+ * an exported symbol
+ */
+static void
+_base_assign_reply_queues(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct adapter_reply_queue *reply_q;
+	int cpu_id;
+	int cpu_grouping, loop, grouping, grouping_mod;
+	int reply_queue;
+
+	if (!_base_is_controller_msix_enabled(ioc))
+		return;
+
+	memset(ioc->cpu_msix_table, 0, ioc->cpu_msix_table_sz);
+
+	/* NUMA Hardware bug workaround - drop to less reply queues */
+	if (ioc->reply_queue_count > ioc->facts.MaxMSIxVectors) {
+		ioc->reply_queue_count = ioc->facts.MaxMSIxVectors;
+		reply_queue = 0;
+		list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
+			reply_q->msix_index = reply_queue;
+			if (++reply_queue == ioc->reply_queue_count)
+				reply_queue = 0;
+		}
+	}
+
+	/* when there are more cpus than available msix vectors,
+	 * then group cpus togeather on same irq
+	 */
+	if (ioc->cpu_count > ioc->msix_vector_count) {
+		grouping = ioc->cpu_count / ioc->msix_vector_count;
+		grouping_mod = ioc->cpu_count % ioc->msix_vector_count;
+		if (grouping < 2 || (grouping == 2 && !grouping_mod))
+			cpu_grouping = 2;
+		else if (grouping < 4 || (grouping == 4 && !grouping_mod))
+			cpu_grouping = 4;
+		else if (grouping < 8 || (grouping == 8 && !grouping_mod))
+			cpu_grouping = 8;
+		else
+			cpu_grouping = 16;
+	} else
+		cpu_grouping = 0;
+
+	loop = 0;
+	reply_q = list_entry(ioc->reply_queue_list.next,
+	     struct adapter_reply_queue, list);
+	for_each_online_cpu(cpu_id) {
+		if (!cpu_grouping) {
+			ioc->cpu_msix_table[cpu_id] = reply_q->msix_index;
+			reply_q = list_entry(reply_q->list.next,
+			    struct adapter_reply_queue, list);
+		} else {
+			if (loop < cpu_grouping) {
+				ioc->cpu_msix_table[cpu_id] =
+				    reply_q->msix_index;
+				loop++;
+			} else {
+				reply_q = list_entry(reply_q->list.next,
+				    struct adapter_reply_queue, list);
+				ioc->cpu_msix_table[cpu_id] =
+				    reply_q->msix_index;
+				loop = 1;
+			}
+		}
+	}
+}
+
+/**
+ * _base_disable_msix - disables msix
+ * @ioc: per adapter object
+ *
+ */
+static void
+_base_disable_msix(struct MPT3SAS_ADAPTER *ioc)
+{
+	if (!ioc->msix_enable)
+		return;
+	pci_disable_msix(ioc->pdev);
+	ioc->msix_enable = 0;
+}
+
+/**
+ * _base_enable_msix - enables msix, failback to io_apic
+ * @ioc: per adapter object
+ *
+ */
+static int
+_base_enable_msix(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct msix_entry *entries, *a;
+	int r;
+	int i;
+	u8 try_msix = 0;
+
+	INIT_LIST_HEAD(&ioc->reply_queue_list);
+
+	if (msix_disable == -1 || msix_disable == 0)
+		try_msix = 1;
+
+	if (!try_msix)
+		goto try_ioapic;
+
+	if (_base_check_enable_msix(ioc) != 0)
+		goto try_ioapic;
+
+	ioc->reply_queue_count = min_t(int, ioc->cpu_count,
+	    ioc->msix_vector_count);
+
+	entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry),
+	    GFP_KERNEL);
+	if (!entries) {
+		dfailprintk(ioc, pr_info(MPT3SAS_FMT
+			"kcalloc failed @ at %s:%d/%s() !!!\n",
+			ioc->name, __FILE__, __LINE__, __func__));
+		goto try_ioapic;
+	}
+
+	for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++)
+		a->entry = i;
+
+	r = pci_enable_msix(ioc->pdev, entries, ioc->reply_queue_count);
+	if (r) {
+		dfailprintk(ioc, pr_info(MPT3SAS_FMT
+			"pci_enable_msix failed (r=%d) !!!\n",
+			ioc->name, r));
+		kfree(entries);
+		goto try_ioapic;
+	}
+
+	ioc->msix_enable = 1;
+	for (i = 0, a = entries; i < ioc->reply_queue_count; i++, a++) {
+		r = _base_request_irq(ioc, i, a->vector);
+		if (r) {
+			_base_free_irq(ioc);
+			_base_disable_msix(ioc);
+			kfree(entries);
+			goto try_ioapic;
+		}
+	}
+
+	kfree(entries);
+	return 0;
+
+/* failback to io_apic interrupt routing */
+ try_ioapic:
+
+	r = _base_request_irq(ioc, 0, ioc->pdev->irq);
+
+	return r;
+}
+
+/**
+ * mpt3sas_base_map_resources - map in controller resources (io/irq/memap)
+ * @ioc: per adapter object
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct pci_dev *pdev = ioc->pdev;
+	u32 memap_sz;
+	u32 pio_sz;
+	int i, r = 0;
+	u64 pio_chip = 0;
+	u64 chip_phys = 0;
+	struct adapter_reply_queue *reply_q;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n",
+	    ioc->name, __func__));
+
+	ioc->bars = pci_select_bars(pdev, IORESOURCE_MEM);
+	if (pci_enable_device_mem(pdev)) {
+		pr_warn(MPT3SAS_FMT "pci_enable_device_mem: failed\n",
+			ioc->name);
+		return -ENODEV;
+	}
+
+
+	if (pci_request_selected_regions(pdev, ioc->bars,
+	    MPT3SAS_DRIVER_NAME)) {
+		pr_warn(MPT3SAS_FMT "pci_request_selected_regions: failed\n",
+			ioc->name);
+		r = -ENODEV;
+		goto out_fail;
+	}
+
+/* AER (Advanced Error Reporting) hooks */
+	pci_enable_pcie_error_reporting(pdev);
+
+	pci_set_master(pdev);
+
+
+	if (_base_config_dma_addressing(ioc, pdev) != 0) {
+		pr_warn(MPT3SAS_FMT "no suitable DMA mask for %s\n",
+		    ioc->name, pci_name(pdev));
+		r = -ENODEV;
+		goto out_fail;
+	}
+
+	for (i = 0, memap_sz = 0, pio_sz = 0 ; i < DEVICE_COUNT_RESOURCE; i++) {
+		if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
+			if (pio_sz)
+				continue;
+			pio_chip = (u64)pci_resource_start(pdev, i);
+			pio_sz = pci_resource_len(pdev, i);
+		} else if (pci_resource_flags(pdev, i) & IORESOURCE_MEM) {
+			if (memap_sz)
+				continue;
+			ioc->chip_phys = pci_resource_start(pdev, i);
+			chip_phys = (u64)ioc->chip_phys;
+			memap_sz = pci_resource_len(pdev, i);
+			ioc->chip = ioremap(ioc->chip_phys, memap_sz);
+			if (ioc->chip == NULL) {
+				pr_err(MPT3SAS_FMT "unable to map adapter memory!\n",
+					ioc->name);
+				r = -EINVAL;
+				goto out_fail;
+			}
+		}
+	}
+
+	_base_mask_interrupts(ioc);
+	r = _base_enable_msix(ioc);
+	if (r)
+		goto out_fail;
+
+	list_for_each_entry(reply_q, &ioc->reply_queue_list, list)
+		pr_info(MPT3SAS_FMT "%s: IRQ %d\n",
+		    reply_q->name,  ((ioc->msix_enable) ? "PCI-MSI-X enabled" :
+		    "IO-APIC enabled"), reply_q->vector);
+
+	pr_info(MPT3SAS_FMT "iomem(0x%016llx), mapped(0x%p), size(%d)\n",
+	    ioc->name, (unsigned long long)chip_phys, ioc->chip, memap_sz);
+	pr_info(MPT3SAS_FMT "ioport(0x%016llx), size(%d)\n",
+	    ioc->name, (unsigned long long)pio_chip, pio_sz);
+
+	/* Save PCI configuration state for recovery from PCI AER/EEH errors */
+	pci_save_state(pdev);
+	return 0;
+
+ out_fail:
+	if (ioc->chip_phys)
+		iounmap(ioc->chip);
+	ioc->chip_phys = 0;
+	pci_release_selected_regions(ioc->pdev, ioc->bars);
+	pci_disable_pcie_error_reporting(pdev);
+	pci_disable_device(pdev);
+	return r;
+}
+
+/**
+ * mpt3sas_base_get_msg_frame - obtain request mf pointer
+ * @ioc: per adapter object
+ * @smid: system request message index(smid zero is invalid)
+ *
+ * Returns virt pointer to message frame.
+ */
+void *
+mpt3sas_base_get_msg_frame(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	return (void *)(ioc->request + (smid * ioc->request_sz));
+}
+
+/**
+ * mpt3sas_base_get_sense_buffer - obtain a sense buffer virt addr
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Returns virt pointer to sense buffer.
+ */
+void *
+mpt3sas_base_get_sense_buffer(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	return (void *)(ioc->sense + ((smid - 1) * SCSI_SENSE_BUFFERSIZE));
+}
+
+/**
+ * mpt3sas_base_get_sense_buffer_dma - obtain a sense buffer dma addr
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Returns phys pointer to the low 32bit address of the sense buffer.
+ */
+__le32
+mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	return cpu_to_le32(ioc->sense_dma + ((smid - 1) *
+	    SCSI_SENSE_BUFFERSIZE));
+}
+
+/**
+ * mpt3sas_base_get_reply_virt_addr - obtain reply frames virt address
+ * @ioc: per adapter object
+ * @phys_addr: lower 32 physical addr of the reply
+ *
+ * Converts 32bit lower physical addr into a virt address.
+ */
+void *
+mpt3sas_base_get_reply_virt_addr(struct MPT3SAS_ADAPTER *ioc, u32 phys_addr)
+{
+	if (!phys_addr)
+		return NULL;
+	return ioc->reply + (phys_addr - (u32)ioc->reply_dma);
+}
+
+/**
+ * mpt3sas_base_get_smid - obtain a free smid from internal queue
+ * @ioc: per adapter object
+ * @cb_idx: callback index
+ *
+ * Returns smid (zero is invalid)
+ */
+u16
+mpt3sas_base_get_smid(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx)
+{
+	unsigned long flags;
+	struct request_tracker *request;
+	u16 smid;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	if (list_empty(&ioc->internal_free_list)) {
+		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+		pr_err(MPT3SAS_FMT "%s: smid not available\n",
+		    ioc->name, __func__);
+		return 0;
+	}
+
+	request = list_entry(ioc->internal_free_list.next,
+	    struct request_tracker, tracker_list);
+	request->cb_idx = cb_idx;
+	smid = request->smid;
+	list_del(&request->tracker_list);
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	return smid;
+}
+
+/**
+ * mpt3sas_base_get_smid_scsiio - obtain a free smid from scsiio queue
+ * @ioc: per adapter object
+ * @cb_idx: callback index
+ * @scmd: pointer to scsi command object
+ *
+ * Returns smid (zero is invalid)
+ */
+u16
+mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
+	struct scsi_cmnd *scmd)
+{
+	unsigned long flags;
+	struct scsiio_tracker *request;
+	u16 smid;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	if (list_empty(&ioc->free_list)) {
+		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+		pr_err(MPT3SAS_FMT "%s: smid not available\n",
+		    ioc->name, __func__);
+		return 0;
+	}
+
+	request = list_entry(ioc->free_list.next,
+	    struct scsiio_tracker, tracker_list);
+	request->scmd = scmd;
+	request->cb_idx = cb_idx;
+	smid = request->smid;
+	list_del(&request->tracker_list);
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	return smid;
+}
+
+/**
+ * mpt3sas_base_get_smid_hpr - obtain a free smid from hi-priority queue
+ * @ioc: per adapter object
+ * @cb_idx: callback index
+ *
+ * Returns smid (zero is invalid)
+ */
+u16
+mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx)
+{
+	unsigned long flags;
+	struct request_tracker *request;
+	u16 smid;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	if (list_empty(&ioc->hpr_free_list)) {
+		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+		return 0;
+	}
+
+	request = list_entry(ioc->hpr_free_list.next,
+	    struct request_tracker, tracker_list);
+	request->cb_idx = cb_idx;
+	smid = request->smid;
+	list_del(&request->tracker_list);
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	return smid;
+}
+
+/**
+ * mpt3sas_base_free_smid - put smid back on free_list
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	unsigned long flags;
+	int i;
+	struct chain_tracker *chain_req, *next;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	if (smid < ioc->hi_priority_smid) {
+		/* scsiio queue */
+		i = smid - 1;
+		if (!list_empty(&ioc->scsi_lookup[i].chain_list)) {
+			list_for_each_entry_safe(chain_req, next,
+			    &ioc->scsi_lookup[i].chain_list, tracker_list) {
+				list_del_init(&chain_req->tracker_list);
+				list_add(&chain_req->tracker_list,
+				    &ioc->free_chain_list);
+			}
+		}
+		ioc->scsi_lookup[i].cb_idx = 0xFF;
+		ioc->scsi_lookup[i].scmd = NULL;
+		list_add(&ioc->scsi_lookup[i].tracker_list, &ioc->free_list);
+		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+		/*
+		 * See _wait_for_commands_to_complete() call with regards
+		 * to this code.
+		 */
+		if (ioc->shost_recovery && ioc->pending_io_count) {
+			if (ioc->pending_io_count == 1)
+				wake_up(&ioc->reset_wq);
+			ioc->pending_io_count--;
+		}
+		return;
+	} else if (smid < ioc->internal_smid) {
+		/* hi-priority */
+		i = smid - ioc->hi_priority_smid;
+		ioc->hpr_lookup[i].cb_idx = 0xFF;
+		list_add(&ioc->hpr_lookup[i].tracker_list, &ioc->hpr_free_list);
+	} else if (smid <= ioc->hba_queue_depth) {
+		/* internal queue */
+		i = smid - ioc->internal_smid;
+		ioc->internal_lookup[i].cb_idx = 0xFF;
+		list_add(&ioc->internal_lookup[i].tracker_list,
+		    &ioc->internal_free_list);
+	}
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+}
+
+/**
+ * _base_writeq - 64 bit write to MMIO
+ * @ioc: per adapter object
+ * @b: data payload
+ * @addr: address in MMIO space
+ * @writeq_lock: spin lock
+ *
+ * Glue for handling an atomic 64 bit word to MMIO. This special handling takes
+ * care of 32 bit environment where its not quarenteed to send the entire word
+ * in one transfer.
+ */
+#if defined(writeq) && defined(CONFIG_64BIT)
+static inline void
+_base_writeq(__u64 b, volatile void __iomem *addr, spinlock_t *writeq_lock)
+{
+	writeq(cpu_to_le64(b), addr);
+}
+#else
+static inline void
+_base_writeq(__u64 b, volatile void __iomem *addr, spinlock_t *writeq_lock)
+{
+	unsigned long flags;
+	__u64 data_out = cpu_to_le64(b);
+
+	spin_lock_irqsave(writeq_lock, flags);
+	writel((u32)(data_out), addr);
+	writel((u32)(data_out >> 32), (addr + 4));
+	spin_unlock_irqrestore(writeq_lock, flags);
+}
+#endif
+
+static inline u8
+_base_get_msix_index(struct MPT3SAS_ADAPTER *ioc)
+{
+	return ioc->cpu_msix_table[raw_smp_processor_id()];
+}
+
+/**
+ * mpt3sas_base_put_smid_scsi_io - send SCSI_IO request to firmware
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @handle: device handle
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_put_smid_scsi_io(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 handle)
+{
+	Mpi2RequestDescriptorUnion_t descriptor;
+	u64 *request = (u64 *)&descriptor;
+
+
+	descriptor.SCSIIO.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
+	descriptor.SCSIIO.MSIxIndex =  _base_get_msix_index(ioc);
+	descriptor.SCSIIO.SMID = cpu_to_le16(smid);
+	descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
+	descriptor.SCSIIO.LMID = 0;
+	_base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+	    &ioc->scsi_lookup_lock);
+}
+
+/**
+ * mpt3sas_base_put_smid_fast_path - send fast path request to firmware
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @handle: device handle
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	u16 handle)
+{
+	Mpi2RequestDescriptorUnion_t descriptor;
+	u64 *request = (u64 *)&descriptor;
+
+	descriptor.SCSIIO.RequestFlags =
+	    MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
+	descriptor.SCSIIO.MSIxIndex = _base_get_msix_index(ioc);
+	descriptor.SCSIIO.SMID = cpu_to_le16(smid);
+	descriptor.SCSIIO.DevHandle = cpu_to_le16(handle);
+	descriptor.SCSIIO.LMID = 0;
+	_base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+	    &ioc->scsi_lookup_lock);
+}
+
+/**
+ * mpt3sas_base_put_smid_hi_priority - send Task Managment request to firmware
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	Mpi2RequestDescriptorUnion_t descriptor;
+	u64 *request = (u64 *)&descriptor;
+
+	descriptor.HighPriority.RequestFlags =
+	    MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY;
+	descriptor.HighPriority.MSIxIndex =  0;
+	descriptor.HighPriority.SMID = cpu_to_le16(smid);
+	descriptor.HighPriority.LMID = 0;
+	descriptor.HighPriority.Reserved1 = 0;
+	_base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+	    &ioc->scsi_lookup_lock);
+}
+
+/**
+ * mpt3sas_base_put_smid_default - Default, primarily used for config pages
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_put_smid_default(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	Mpi2RequestDescriptorUnion_t descriptor;
+	u64 *request = (u64 *)&descriptor;
+
+	descriptor.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
+	descriptor.Default.MSIxIndex =  _base_get_msix_index(ioc);
+	descriptor.Default.SMID = cpu_to_le16(smid);
+	descriptor.Default.LMID = 0;
+	descriptor.Default.DescriptorTypeDependent = 0;
+	_base_writeq(*request, &ioc->chip->RequestDescriptorPostLow,
+	    &ioc->scsi_lookup_lock);
+}
+
+
+
+/**
+ * _base_display_ioc_capabilities - Disply IOC's capabilities.
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_display_ioc_capabilities(struct MPT3SAS_ADAPTER *ioc)
+{
+	int i = 0;
+	char desc[16];
+	u32 iounit_pg1_flags;
+	u32 bios_version;
+
+	bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
+	strncpy(desc, ioc->manu_pg0.ChipName, 16);
+	pr_info(MPT3SAS_FMT "%s: FWVersion(%02d.%02d.%02d.%02d), "\
+	   "ChipRevision(0x%02x), BiosVersion(%02d.%02d.%02d.%02d)\n",
+	    ioc->name, desc,
+	   (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
+	   (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
+	   (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
+	   ioc->facts.FWVersion.Word & 0x000000FF,
+	   ioc->pdev->revision,
+	   (bios_version & 0xFF000000) >> 24,
+	   (bios_version & 0x00FF0000) >> 16,
+	   (bios_version & 0x0000FF00) >> 8,
+	    bios_version & 0x000000FF);
+
+	pr_info(MPT3SAS_FMT "Protocol=(", ioc->name);
+
+	if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR) {
+		pr_info("Initiator");
+		i++;
+	}
+
+	if (ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_TARGET) {
+		pr_info("%sTarget", i ? "," : "");
+		i++;
+	}
+
+	i = 0;
+	pr_info("), ");
+	pr_info("Capabilities=(");
+
+	if (ioc->facts.IOCCapabilities &
+		    MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID) {
+			pr_info("Raid");
+			i++;
+	}
+
+	if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR) {
+		pr_info("%sTLR", i ? "," : "");
+		i++;
+	}
+
+	if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_MULTICAST) {
+		pr_info("%sMulticast", i ? "," : "");
+		i++;
+	}
+
+	if (ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_BIDIRECTIONAL_TARGET) {
+		pr_info("%sBIDI Target", i ? "," : "");
+		i++;
+	}
+
+	if (ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_EEDP) {
+		pr_info("%sEEDP", i ? "," : "");
+		i++;
+	}
+
+	if (ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER) {
+		pr_info("%sSnapshot Buffer", i ? "," : "");
+		i++;
+	}
+
+	if (ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER) {
+		pr_info("%sDiag Trace Buffer", i ? "," : "");
+		i++;
+	}
+
+	if (ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER) {
+		pr_info("%sDiag Extended Buffer", i ? "," : "");
+		i++;
+	}
+
+	if (ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING) {
+		pr_info("%sTask Set Full", i ? "," : "");
+		i++;
+	}
+
+	iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
+	if (!(iounit_pg1_flags & MPI2_IOUNITPAGE1_NATIVE_COMMAND_Q_DISABLE)) {
+		pr_info("%sNCQ", i ? "," : "");
+		i++;
+	}
+
+	pr_info(")\n");
+}
+
+/**
+ * mpt3sas_base_update_missing_delay - change the missing delay timers
+ * @ioc: per adapter object
+ * @device_missing_delay: amount of time till device is reported missing
+ * @io_missing_delay: interval IO is returned when there is a missing device
+ *
+ * Return nothing.
+ *
+ * Passed on the command line, this function will modify the device missing
+ * delay, as well as the io missing delay. This should be called at driver
+ * load time.
+ */
+void
+mpt3sas_base_update_missing_delay(struct MPT3SAS_ADAPTER *ioc,
+	u16 device_missing_delay, u8 io_missing_delay)
+{
+	u16 dmd, dmd_new, dmd_orignal;
+	u8 io_missing_delay_original;
+	u16 sz;
+	Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
+	Mpi2ConfigReply_t mpi_reply;
+	u8 num_phys = 0;
+	u16 ioc_status;
+
+	mpt3sas_config_get_number_hba_phys(ioc, &num_phys);
+	if (!num_phys)
+		return;
+
+	sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (num_phys *
+	    sizeof(Mpi2SasIOUnit1PhyData_t));
+	sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_iounit_pg1) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
+	    sas_iounit_pg1, sz))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+
+	/* device missing delay */
+	dmd = sas_iounit_pg1->ReportDeviceMissingDelay;
+	if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
+		dmd = (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
+	else
+		dmd = dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
+	dmd_orignal = dmd;
+	if (device_missing_delay > 0x7F) {
+		dmd = (device_missing_delay > 0x7F0) ? 0x7F0 :
+		    device_missing_delay;
+		dmd = dmd / 16;
+		dmd |= MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16;
+	} else
+		dmd = device_missing_delay;
+	sas_iounit_pg1->ReportDeviceMissingDelay = dmd;
+
+	/* io missing delay */
+	io_missing_delay_original = sas_iounit_pg1->IODeviceMissingDelay;
+	sas_iounit_pg1->IODeviceMissingDelay = io_missing_delay;
+
+	if (!mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
+	    sz)) {
+		if (dmd & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
+			dmd_new = (dmd &
+			    MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
+		else
+			dmd_new =
+		    dmd & MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
+		pr_info(MPT3SAS_FMT "device_missing_delay: old(%d), new(%d)\n",
+			ioc->name, dmd_orignal, dmd_new);
+		pr_info(MPT3SAS_FMT "ioc_missing_delay: old(%d), new(%d)\n",
+			ioc->name, io_missing_delay_original,
+		    io_missing_delay);
+		ioc->device_missing_delay = dmd_new;
+		ioc->io_missing_delay = io_missing_delay;
+	}
+
+out:
+	kfree(sas_iounit_pg1);
+}
+/**
+ * _base_static_config_pages - static start of day config pages
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_base_static_config_pages(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi2ConfigReply_t mpi_reply;
+	u32 iounit_pg1_flags;
+
+	mpt3sas_config_get_manufacturing_pg0(ioc, &mpi_reply, &ioc->manu_pg0);
+	if (ioc->ir_firmware)
+		mpt3sas_config_get_manufacturing_pg10(ioc, &mpi_reply,
+		    &ioc->manu_pg10);
+
+	/*
+	 * Ensure correct T10 PI operation if vendor left EEDPTagMode
+	 * flag unset in NVDATA.
+	 */
+	mpt3sas_config_get_manufacturing_pg11(ioc, &mpi_reply, &ioc->manu_pg11);
+	if (ioc->manu_pg11.EEDPTagMode == 0) {
+		pr_err("%s: overriding NVDATA EEDPTagMode setting\n",
+		    ioc->name);
+		ioc->manu_pg11.EEDPTagMode &= ~0x3;
+		ioc->manu_pg11.EEDPTagMode |= 0x1;
+		mpt3sas_config_set_manufacturing_pg11(ioc, &mpi_reply,
+		    &ioc->manu_pg11);
+	}
+
+	mpt3sas_config_get_bios_pg2(ioc, &mpi_reply, &ioc->bios_pg2);
+	mpt3sas_config_get_bios_pg3(ioc, &mpi_reply, &ioc->bios_pg3);
+	mpt3sas_config_get_ioc_pg8(ioc, &mpi_reply, &ioc->ioc_pg8);
+	mpt3sas_config_get_iounit_pg0(ioc, &mpi_reply, &ioc->iounit_pg0);
+	mpt3sas_config_get_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
+	_base_display_ioc_capabilities(ioc);
+
+	/*
+	 * Enable task_set_full handling in iounit_pg1 when the
+	 * facts capabilities indicate that its supported.
+	 */
+	iounit_pg1_flags = le32_to_cpu(ioc->iounit_pg1.Flags);
+	if ((ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_TASK_SET_FULL_HANDLING))
+		iounit_pg1_flags &=
+		    ~MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
+	else
+		iounit_pg1_flags |=
+		    MPI2_IOUNITPAGE1_DISABLE_TASK_SET_FULL_HANDLING;
+	ioc->iounit_pg1.Flags = cpu_to_le32(iounit_pg1_flags);
+	mpt3sas_config_set_iounit_pg1(ioc, &mpi_reply, &ioc->iounit_pg1);
+}
+
+/**
+ * _base_release_memory_pools - release memory
+ * @ioc: per adapter object
+ *
+ * Free memory allocated from _base_allocate_memory_pools.
+ *
+ * Return nothing.
+ */
+static void
+_base_release_memory_pools(struct MPT3SAS_ADAPTER *ioc)
+{
+	int i;
+
+	dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	if (ioc->request) {
+		pci_free_consistent(ioc->pdev, ioc->request_dma_sz,
+		    ioc->request,  ioc->request_dma);
+		dexitprintk(ioc, pr_info(MPT3SAS_FMT
+			"request_pool(0x%p): free\n",
+			ioc->name, ioc->request));
+		ioc->request = NULL;
+	}
+
+	if (ioc->sense) {
+		pci_pool_free(ioc->sense_dma_pool, ioc->sense, ioc->sense_dma);
+		if (ioc->sense_dma_pool)
+			pci_pool_destroy(ioc->sense_dma_pool);
+		dexitprintk(ioc, pr_info(MPT3SAS_FMT
+			"sense_pool(0x%p): free\n",
+			ioc->name, ioc->sense));
+		ioc->sense = NULL;
+	}
+
+	if (ioc->reply) {
+		pci_pool_free(ioc->reply_dma_pool, ioc->reply, ioc->reply_dma);
+		if (ioc->reply_dma_pool)
+			pci_pool_destroy(ioc->reply_dma_pool);
+		dexitprintk(ioc, pr_info(MPT3SAS_FMT
+			"reply_pool(0x%p): free\n",
+			ioc->name, ioc->reply));
+		ioc->reply = NULL;
+	}
+
+	if (ioc->reply_free) {
+		pci_pool_free(ioc->reply_free_dma_pool, ioc->reply_free,
+		    ioc->reply_free_dma);
+		if (ioc->reply_free_dma_pool)
+			pci_pool_destroy(ioc->reply_free_dma_pool);
+		dexitprintk(ioc, pr_info(MPT3SAS_FMT
+			"reply_free_pool(0x%p): free\n",
+			ioc->name, ioc->reply_free));
+		ioc->reply_free = NULL;
+	}
+
+	if (ioc->reply_post_free) {
+		pci_pool_free(ioc->reply_post_free_dma_pool,
+		    ioc->reply_post_free, ioc->reply_post_free_dma);
+		if (ioc->reply_post_free_dma_pool)
+			pci_pool_destroy(ioc->reply_post_free_dma_pool);
+		dexitprintk(ioc, pr_info(MPT3SAS_FMT
+		    "reply_post_free_pool(0x%p): free\n", ioc->name,
+		    ioc->reply_post_free));
+		ioc->reply_post_free = NULL;
+	}
+
+	if (ioc->config_page) {
+		dexitprintk(ioc, pr_info(MPT3SAS_FMT
+		    "config_page(0x%p): free\n", ioc->name,
+		    ioc->config_page));
+		pci_free_consistent(ioc->pdev, ioc->config_page_sz,
+		    ioc->config_page, ioc->config_page_dma);
+	}
+
+	if (ioc->scsi_lookup) {
+		free_pages((ulong)ioc->scsi_lookup, ioc->scsi_lookup_pages);
+		ioc->scsi_lookup = NULL;
+	}
+	kfree(ioc->hpr_lookup);
+	kfree(ioc->internal_lookup);
+	if (ioc->chain_lookup) {
+		for (i = 0; i < ioc->chain_depth; i++) {
+			if (ioc->chain_lookup[i].chain_buffer)
+				pci_pool_free(ioc->chain_dma_pool,
+				    ioc->chain_lookup[i].chain_buffer,
+				    ioc->chain_lookup[i].chain_buffer_dma);
+		}
+		if (ioc->chain_dma_pool)
+			pci_pool_destroy(ioc->chain_dma_pool);
+		free_pages((ulong)ioc->chain_lookup, ioc->chain_pages);
+		ioc->chain_lookup = NULL;
+	}
+}
+
+/**
+ * _base_allocate_memory_pools - allocate start of day memory pools
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 success, anything else error
+ */
+static int
+_base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc,  int sleep_flag)
+{
+	struct mpt3sas_facts *facts;
+	u16 max_sge_elements;
+	u16 chains_needed_per_io;
+	u32 sz, total_sz, reply_post_free_sz;
+	u32 retry_sz;
+	u16 max_request_credit;
+	unsigned short sg_tablesize;
+	u16 sge_size;
+	int i;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+
+	retry_sz = 0;
+	facts = &ioc->facts;
+
+	/* command line tunables for max sgl entries */
+	if (max_sgl_entries != -1)
+		sg_tablesize = max_sgl_entries;
+	else
+		sg_tablesize = MPT3SAS_SG_DEPTH;
+
+	if (sg_tablesize < MPT3SAS_MIN_PHYS_SEGMENTS)
+		sg_tablesize = MPT3SAS_MIN_PHYS_SEGMENTS;
+	else if (sg_tablesize > MPT3SAS_MAX_PHYS_SEGMENTS)
+		sg_tablesize = MPT3SAS_MAX_PHYS_SEGMENTS;
+	ioc->shost->sg_tablesize = sg_tablesize;
+
+	ioc->hi_priority_depth = facts->HighPriorityCredit;
+	ioc->internal_depth = ioc->hi_priority_depth + (5);
+	/* command line tunables  for max controller queue depth */
+	if (max_queue_depth != -1 && max_queue_depth != 0) {
+		max_request_credit = min_t(u16, max_queue_depth +
+		    ioc->hi_priority_depth + ioc->internal_depth,
+		    facts->RequestCredit);
+		if (max_request_credit > MAX_HBA_QUEUE_DEPTH)
+			max_request_credit =  MAX_HBA_QUEUE_DEPTH;
+	} else
+		max_request_credit = min_t(u16, facts->RequestCredit,
+		    MAX_HBA_QUEUE_DEPTH);
+
+	ioc->hba_queue_depth = max_request_credit;
+
+	/* request frame size */
+	ioc->request_sz = facts->IOCRequestFrameSize * 4;
+
+	/* reply frame size */
+	ioc->reply_sz = facts->ReplyFrameSize * 4;
+
+	/* calculate the max scatter element size */
+	sge_size = max_t(u16, ioc->sge_size, ioc->sge_size_ieee);
+
+ retry_allocation:
+	total_sz = 0;
+	/* calculate number of sg elements left over in the 1st frame */
+	max_sge_elements = ioc->request_sz - ((sizeof(Mpi2SCSIIORequest_t) -
+	    sizeof(Mpi2SGEIOUnion_t)) + sge_size);
+	ioc->max_sges_in_main_message = max_sge_elements/sge_size;
+
+	/* now do the same for a chain buffer */
+	max_sge_elements = ioc->request_sz - sge_size;
+	ioc->max_sges_in_chain_message = max_sge_elements/sge_size;
+
+	/*
+	 *  MPT3SAS_SG_DEPTH = CONFIG_FUSION_MAX_SGE
+	 */
+	chains_needed_per_io = ((ioc->shost->sg_tablesize -
+	   ioc->max_sges_in_main_message)/ioc->max_sges_in_chain_message)
+	    + 1;
+	if (chains_needed_per_io > facts->MaxChainDepth) {
+		chains_needed_per_io = facts->MaxChainDepth;
+		ioc->shost->sg_tablesize = min_t(u16,
+		ioc->max_sges_in_main_message + (ioc->max_sges_in_chain_message
+		* chains_needed_per_io), ioc->shost->sg_tablesize);
+	}
+	ioc->chains_needed_per_io = chains_needed_per_io;
+
+	/* reply free queue sizing - taking into account for 64 FW events */
+	ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
+
+	/* calculate reply descriptor post queue depth */
+	ioc->reply_post_queue_depth = ioc->hba_queue_depth +
+				ioc->reply_free_queue_depth +  1 ;
+	/* align the reply post queue on the next 16 count boundary */
+	if (ioc->reply_post_queue_depth % 16)
+		ioc->reply_post_queue_depth += 16 -
+		(ioc->reply_post_queue_depth % 16);
+
+
+	if (ioc->reply_post_queue_depth >
+	    facts->MaxReplyDescriptorPostQueueDepth) {
+		ioc->reply_post_queue_depth =
+				facts->MaxReplyDescriptorPostQueueDepth -
+		    (facts->MaxReplyDescriptorPostQueueDepth % 16);
+		ioc->hba_queue_depth =
+				((ioc->reply_post_queue_depth - 64) / 2) - 1;
+		ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
+	}
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "scatter gather: " \
+	    "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
+	    "chains_per_io(%d)\n", ioc->name, ioc->max_sges_in_main_message,
+	    ioc->max_sges_in_chain_message, ioc->shost->sg_tablesize,
+	    ioc->chains_needed_per_io));
+
+	ioc->scsiio_depth = ioc->hba_queue_depth -
+	    ioc->hi_priority_depth - ioc->internal_depth;
+
+	/* set the scsi host can_queue depth
+	 * with some internal commands that could be outstanding
+	 */
+	ioc->shost->can_queue = ioc->scsiio_depth;
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"scsi host: can_queue depth (%d)\n",
+		ioc->name, ioc->shost->can_queue));
+
+
+	/* contiguous pool for request and chains, 16 byte align, one extra "
+	 * "frame for smid=0
+	 */
+	ioc->chain_depth = ioc->chains_needed_per_io * ioc->scsiio_depth;
+	sz = ((ioc->scsiio_depth + 1) * ioc->request_sz);
+
+	/* hi-priority queue */
+	sz += (ioc->hi_priority_depth * ioc->request_sz);
+
+	/* internal queue */
+	sz += (ioc->internal_depth * ioc->request_sz);
+
+	ioc->request_dma_sz = sz;
+	ioc->request = pci_alloc_consistent(ioc->pdev, sz, &ioc->request_dma);
+	if (!ioc->request) {
+		pr_err(MPT3SAS_FMT "request pool: pci_alloc_consistent " \
+		    "failed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
+		    "total(%d kB)\n", ioc->name, ioc->hba_queue_depth,
+		    ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
+		if (ioc->scsiio_depth < MPT3SAS_SAS_QUEUE_DEPTH)
+			goto out;
+		retry_sz += 64;
+		ioc->hba_queue_depth = max_request_credit - retry_sz;
+		goto retry_allocation;
+	}
+
+	if (retry_sz)
+		pr_err(MPT3SAS_FMT "request pool: pci_alloc_consistent " \
+		    "succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), "
+		    "total(%d kb)\n", ioc->name, ioc->hba_queue_depth,
+		    ioc->chains_needed_per_io, ioc->request_sz, sz/1024);
+
+	/* hi-priority queue */
+	ioc->hi_priority = ioc->request + ((ioc->scsiio_depth + 1) *
+	    ioc->request_sz);
+	ioc->hi_priority_dma = ioc->request_dma + ((ioc->scsiio_depth + 1) *
+	    ioc->request_sz);
+
+	/* internal queue */
+	ioc->internal = ioc->hi_priority + (ioc->hi_priority_depth *
+	    ioc->request_sz);
+	ioc->internal_dma = ioc->hi_priority_dma + (ioc->hi_priority_depth *
+	    ioc->request_sz);
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"request pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB)\n",
+		ioc->name, ioc->request, ioc->hba_queue_depth, ioc->request_sz,
+	    (ioc->hba_queue_depth * ioc->request_sz)/1024));
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "request pool: dma(0x%llx)\n",
+	    ioc->name, (unsigned long long) ioc->request_dma));
+	total_sz += sz;
+
+	sz = ioc->scsiio_depth * sizeof(struct scsiio_tracker);
+	ioc->scsi_lookup_pages = get_order(sz);
+	ioc->scsi_lookup = (struct scsiio_tracker *)__get_free_pages(
+	    GFP_KERNEL, ioc->scsi_lookup_pages);
+	if (!ioc->scsi_lookup) {
+		pr_err(MPT3SAS_FMT "scsi_lookup: get_free_pages failed, sz(%d)\n",
+			ioc->name, (int)sz);
+		goto out;
+	}
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "scsiio(0x%p): depth(%d)\n",
+		ioc->name, ioc->request, ioc->scsiio_depth));
+
+	ioc->chain_depth = min_t(u32, ioc->chain_depth, MAX_CHAIN_DEPTH);
+	sz = ioc->chain_depth * sizeof(struct chain_tracker);
+	ioc->chain_pages = get_order(sz);
+	ioc->chain_lookup = (struct chain_tracker *)__get_free_pages(
+	    GFP_KERNEL, ioc->chain_pages);
+	if (!ioc->chain_lookup) {
+		pr_err(MPT3SAS_FMT "chain_lookup: __get_free_pages failed\n",
+			ioc->name);
+		goto out;
+	}
+	ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev,
+	    ioc->request_sz, 16, 0);
+	if (!ioc->chain_dma_pool) {
+		pr_err(MPT3SAS_FMT "chain_dma_pool: pci_pool_create failed\n",
+			ioc->name);
+		goto out;
+	}
+	for (i = 0; i < ioc->chain_depth; i++) {
+		ioc->chain_lookup[i].chain_buffer = pci_pool_alloc(
+		    ioc->chain_dma_pool , GFP_KERNEL,
+		    &ioc->chain_lookup[i].chain_buffer_dma);
+		if (!ioc->chain_lookup[i].chain_buffer) {
+			ioc->chain_depth = i;
+			goto chain_done;
+		}
+		total_sz += ioc->request_sz;
+	}
+ chain_done:
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"chain pool depth(%d), frame_size(%d), pool_size(%d kB)\n",
+		ioc->name, ioc->chain_depth, ioc->request_sz,
+		((ioc->chain_depth *  ioc->request_sz))/1024));
+
+	/* initialize hi-priority queue smid's */
+	ioc->hpr_lookup = kcalloc(ioc->hi_priority_depth,
+	    sizeof(struct request_tracker), GFP_KERNEL);
+	if (!ioc->hpr_lookup) {
+		pr_err(MPT3SAS_FMT "hpr_lookup: kcalloc failed\n",
+		    ioc->name);
+		goto out;
+	}
+	ioc->hi_priority_smid = ioc->scsiio_depth + 1;
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"hi_priority(0x%p): depth(%d), start smid(%d)\n",
+		ioc->name, ioc->hi_priority,
+	    ioc->hi_priority_depth, ioc->hi_priority_smid));
+
+	/* initialize internal queue smid's */
+	ioc->internal_lookup = kcalloc(ioc->internal_depth,
+	    sizeof(struct request_tracker), GFP_KERNEL);
+	if (!ioc->internal_lookup) {
+		pr_err(MPT3SAS_FMT "internal_lookup: kcalloc failed\n",
+		    ioc->name);
+		goto out;
+	}
+	ioc->internal_smid = ioc->hi_priority_smid + ioc->hi_priority_depth;
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"internal(0x%p): depth(%d), start smid(%d)\n",
+		ioc->name, ioc->internal,
+	    ioc->internal_depth, ioc->internal_smid));
+
+	/* sense buffers, 4 byte align */
+	sz = ioc->scsiio_depth * SCSI_SENSE_BUFFERSIZE;
+	ioc->sense_dma_pool = pci_pool_create("sense pool", ioc->pdev, sz, 4,
+	    0);
+	if (!ioc->sense_dma_pool) {
+		pr_err(MPT3SAS_FMT "sense pool: pci_pool_create failed\n",
+		    ioc->name);
+		goto out;
+	}
+	ioc->sense = pci_pool_alloc(ioc->sense_dma_pool , GFP_KERNEL,
+	    &ioc->sense_dma);
+	if (!ioc->sense) {
+		pr_err(MPT3SAS_FMT "sense pool: pci_pool_alloc failed\n",
+		    ioc->name);
+		goto out;
+	}
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+	    "sense pool(0x%p): depth(%d), element_size(%d), pool_size"
+	    "(%d kB)\n", ioc->name, ioc->sense, ioc->scsiio_depth,
+	    SCSI_SENSE_BUFFERSIZE, sz/1024));
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "sense_dma(0x%llx)\n",
+	    ioc->name, (unsigned long long)ioc->sense_dma));
+	total_sz += sz;
+
+	/* reply pool, 4 byte align */
+	sz = ioc->reply_free_queue_depth * ioc->reply_sz;
+	ioc->reply_dma_pool = pci_pool_create("reply pool", ioc->pdev, sz, 4,
+	    0);
+	if (!ioc->reply_dma_pool) {
+		pr_err(MPT3SAS_FMT "reply pool: pci_pool_create failed\n",
+		    ioc->name);
+		goto out;
+	}
+	ioc->reply = pci_pool_alloc(ioc->reply_dma_pool , GFP_KERNEL,
+	    &ioc->reply_dma);
+	if (!ioc->reply) {
+		pr_err(MPT3SAS_FMT "reply pool: pci_pool_alloc failed\n",
+		    ioc->name);
+		goto out;
+	}
+	ioc->reply_dma_min_address = (u32)(ioc->reply_dma);
+	ioc->reply_dma_max_address = (u32)(ioc->reply_dma) + sz;
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"reply pool(0x%p): depth(%d), frame_size(%d), pool_size(%d kB)\n",
+		ioc->name, ioc->reply,
+	    ioc->reply_free_queue_depth, ioc->reply_sz, sz/1024));
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "reply_dma(0x%llx)\n",
+	    ioc->name, (unsigned long long)ioc->reply_dma));
+	total_sz += sz;
+
+	/* reply free queue, 16 byte align */
+	sz = ioc->reply_free_queue_depth * 4;
+	ioc->reply_free_dma_pool = pci_pool_create("reply_free pool",
+	    ioc->pdev, sz, 16, 0);
+	if (!ioc->reply_free_dma_pool) {
+		pr_err(MPT3SAS_FMT "reply_free pool: pci_pool_create failed\n",
+			ioc->name);
+		goto out;
+	}
+	ioc->reply_free = pci_pool_alloc(ioc->reply_free_dma_pool , GFP_KERNEL,
+	    &ioc->reply_free_dma);
+	if (!ioc->reply_free) {
+		pr_err(MPT3SAS_FMT "reply_free pool: pci_pool_alloc failed\n",
+			ioc->name);
+		goto out;
+	}
+	memset(ioc->reply_free, 0, sz);
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "reply_free pool(0x%p): " \
+	    "depth(%d), element_size(%d), pool_size(%d kB)\n", ioc->name,
+	    ioc->reply_free, ioc->reply_free_queue_depth, 4, sz/1024));
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"reply_free_dma (0x%llx)\n",
+		ioc->name, (unsigned long long)ioc->reply_free_dma));
+	total_sz += sz;
+
+	/* reply post queue, 16 byte align */
+	reply_post_free_sz = ioc->reply_post_queue_depth *
+	    sizeof(Mpi2DefaultReplyDescriptor_t);
+	if (_base_is_controller_msix_enabled(ioc))
+		sz = reply_post_free_sz * ioc->reply_queue_count;
+	else
+		sz = reply_post_free_sz;
+	ioc->reply_post_free_dma_pool = pci_pool_create("reply_post_free pool",
+	    ioc->pdev, sz, 16, 0);
+	if (!ioc->reply_post_free_dma_pool) {
+		pr_err(MPT3SAS_FMT
+			"reply_post_free pool: pci_pool_create failed\n",
+			ioc->name);
+		goto out;
+	}
+	ioc->reply_post_free = pci_pool_alloc(ioc->reply_post_free_dma_pool ,
+	    GFP_KERNEL, &ioc->reply_post_free_dma);
+	if (!ioc->reply_post_free) {
+		pr_err(MPT3SAS_FMT
+			"reply_post_free pool: pci_pool_alloc failed\n",
+			ioc->name);
+		goto out;
+	}
+	memset(ioc->reply_post_free, 0, sz);
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "reply post free pool" \
+	    "(0x%p): depth(%d), element_size(%d), pool_size(%d kB)\n",
+	    ioc->name, ioc->reply_post_free, ioc->reply_post_queue_depth, 8,
+	    sz/1024));
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"reply_post_free_dma = (0x%llx)\n",
+		ioc->name, (unsigned long long)
+	    ioc->reply_post_free_dma));
+	total_sz += sz;
+
+	ioc->config_page_sz = 512;
+	ioc->config_page = pci_alloc_consistent(ioc->pdev,
+	    ioc->config_page_sz, &ioc->config_page_dma);
+	if (!ioc->config_page) {
+		pr_err(MPT3SAS_FMT
+			"config page: pci_pool_alloc failed\n",
+			ioc->name);
+		goto out;
+	}
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"config page(0x%p): size(%d)\n",
+		ioc->name, ioc->config_page, ioc->config_page_sz));
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "config_page_dma(0x%llx)\n",
+		ioc->name, (unsigned long long)ioc->config_page_dma));
+	total_sz += ioc->config_page_sz;
+
+	pr_info(MPT3SAS_FMT "Allocated physical memory: size(%d kB)\n",
+	    ioc->name, total_sz/1024);
+	pr_info(MPT3SAS_FMT
+		"Current Controller Queue Depth(%d),Max Controller Queue Depth(%d)\n",
+	    ioc->name, ioc->shost->can_queue, facts->RequestCredit);
+	pr_info(MPT3SAS_FMT "Scatter Gather Elements per IO(%d)\n",
+	    ioc->name, ioc->shost->sg_tablesize);
+	return 0;
+
+ out:
+	return -ENOMEM;
+}
+
+/**
+ * mpt3sas_base_get_iocstate - Get the current state of a MPT adapter.
+ * @ioc: Pointer to MPT_ADAPTER structure
+ * @cooked: Request raw or cooked IOC state
+ *
+ * Returns all IOC Doorbell register bits if cooked==0, else just the
+ * Doorbell bits in MPI_IOC_STATE_MASK.
+ */
+u32
+mpt3sas_base_get_iocstate(struct MPT3SAS_ADAPTER *ioc, int cooked)
+{
+	u32 s, sc;
+
+	s = readl(&ioc->chip->Doorbell);
+	sc = s & MPI2_IOC_STATE_MASK;
+	return cooked ? sc : s;
+}
+
+/**
+ * _base_wait_on_iocstate - waiting on a particular ioc state
+ * @ioc_state: controller state { READY, OPERATIONAL, or RESET }
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout,
+	int sleep_flag)
+{
+	u32 count, cntdn;
+	u32 current_state;
+
+	count = 0;
+	cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+	do {
+		current_state = mpt3sas_base_get_iocstate(ioc, 1);
+		if (current_state == ioc_state)
+			return 0;
+		if (count && current_state == MPI2_IOC_STATE_FAULT)
+			break;
+		if (sleep_flag == CAN_SLEEP)
+			usleep_range(1000, 1500);
+		else
+			udelay(500);
+		count++;
+	} while (--cntdn);
+
+	return current_state;
+}
+
+/**
+ * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by
+ * a write to the doorbell)
+ * @ioc: per adapter object
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ * Notes: MPI2_HIS_IOC2SYS_DB_STATUS - set to one when IOC writes to doorbell.
+ */
+static int
+_base_wait_for_doorbell_int(struct MPT3SAS_ADAPTER *ioc, int timeout,
+	int sleep_flag)
+{
+	u32 cntdn, count;
+	u32 int_status;
+
+	count = 0;
+	cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+	do {
+		int_status = readl(&ioc->chip->HostInterruptStatus);
+		if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
+			dhsprintk(ioc, pr_info(MPT3SAS_FMT
+				"%s: successful count(%d), timeout(%d)\n",
+				ioc->name, __func__, count, timeout));
+			return 0;
+		}
+		if (sleep_flag == CAN_SLEEP)
+			usleep_range(1000, 1500);
+		else
+			udelay(500);
+		count++;
+	} while (--cntdn);
+
+	pr_err(MPT3SAS_FMT
+		"%s: failed due to timeout count(%d), int_status(%x)!\n",
+		ioc->name, __func__, count, int_status);
+	return -EFAULT;
+}
+
+/**
+ * _base_wait_for_doorbell_ack - waiting for controller to read the doorbell.
+ * @ioc: per adapter object
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ * Notes: MPI2_HIS_SYS2IOC_DB_STATUS - set to one when host writes to
+ * doorbell.
+ */
+static int
+_base_wait_for_doorbell_ack(struct MPT3SAS_ADAPTER *ioc, int timeout,
+	int sleep_flag)
+{
+	u32 cntdn, count;
+	u32 int_status;
+	u32 doorbell;
+
+	count = 0;
+	cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+	do {
+		int_status = readl(&ioc->chip->HostInterruptStatus);
+		if (!(int_status & MPI2_HIS_SYS2IOC_DB_STATUS)) {
+			dhsprintk(ioc, pr_info(MPT3SAS_FMT
+				"%s: successful count(%d), timeout(%d)\n",
+				ioc->name, __func__, count, timeout));
+			return 0;
+		} else if (int_status & MPI2_HIS_IOC2SYS_DB_STATUS) {
+			doorbell = readl(&ioc->chip->Doorbell);
+			if ((doorbell & MPI2_IOC_STATE_MASK) ==
+			    MPI2_IOC_STATE_FAULT) {
+				mpt3sas_base_fault_info(ioc , doorbell);
+				return -EFAULT;
+			}
+		} else if (int_status == 0xFFFFFFFF)
+			goto out;
+
+		if (sleep_flag == CAN_SLEEP)
+			usleep_range(1000, 1500);
+		else
+			udelay(500);
+		count++;
+	} while (--cntdn);
+
+ out:
+	pr_err(MPT3SAS_FMT
+	 "%s: failed due to timeout count(%d), int_status(%x)!\n",
+	 ioc->name, __func__, count, int_status);
+	return -EFAULT;
+}
+
+/**
+ * _base_wait_for_doorbell_not_used - waiting for doorbell to not be in use
+ * @ioc: per adapter object
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ */
+static int
+_base_wait_for_doorbell_not_used(struct MPT3SAS_ADAPTER *ioc, int timeout,
+	int sleep_flag)
+{
+	u32 cntdn, count;
+	u32 doorbell_reg;
+
+	count = 0;
+	cntdn = (sleep_flag == CAN_SLEEP) ? 1000*timeout : 2000*timeout;
+	do {
+		doorbell_reg = readl(&ioc->chip->Doorbell);
+		if (!(doorbell_reg & MPI2_DOORBELL_USED)) {
+			dhsprintk(ioc, pr_info(MPT3SAS_FMT
+				"%s: successful count(%d), timeout(%d)\n",
+				ioc->name, __func__, count, timeout));
+			return 0;
+		}
+		if (sleep_flag == CAN_SLEEP)
+			usleep_range(1000, 1500);
+		else
+			udelay(500);
+		count++;
+	} while (--cntdn);
+
+	pr_err(MPT3SAS_FMT
+		"%s: failed due to timeout count(%d), doorbell_reg(%x)!\n",
+		ioc->name, __func__, count, doorbell_reg);
+	return -EFAULT;
+}
+
+/**
+ * _base_send_ioc_reset - send doorbell reset
+ * @ioc: per adapter object
+ * @reset_type: currently only supports: MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_send_ioc_reset(struct MPT3SAS_ADAPTER *ioc, u8 reset_type, int timeout,
+	int sleep_flag)
+{
+	u32 ioc_state;
+	int r = 0;
+
+	if (reset_type != MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET) {
+		pr_err(MPT3SAS_FMT "%s: unknown reset_type\n",
+		    ioc->name, __func__);
+		return -EFAULT;
+	}
+
+	if (!(ioc->facts.IOCCapabilities &
+	   MPI2_IOCFACTS_CAPABILITY_EVENT_REPLAY))
+		return -EFAULT;
+
+	pr_info(MPT3SAS_FMT "sending message unit reset !!\n", ioc->name);
+
+	writel(reset_type << MPI2_DOORBELL_FUNCTION_SHIFT,
+	    &ioc->chip->Doorbell);
+	if ((_base_wait_for_doorbell_ack(ioc, 15, sleep_flag))) {
+		r = -EFAULT;
+		goto out;
+	}
+	ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY,
+	    timeout, sleep_flag);
+	if (ioc_state) {
+		pr_err(MPT3SAS_FMT
+			"%s: failed going to ready state (ioc_state=0x%x)\n",
+			ioc->name, __func__, ioc_state);
+		r = -EFAULT;
+		goto out;
+	}
+ out:
+	pr_info(MPT3SAS_FMT "message unit reset: %s\n",
+	    ioc->name, ((r == 0) ? "SUCCESS" : "FAILED"));
+	return r;
+}
+
+/**
+ * _base_handshake_req_reply_wait - send request thru doorbell interface
+ * @ioc: per adapter object
+ * @request_bytes: request length
+ * @request: pointer having request payload
+ * @reply_bytes: reply length
+ * @reply: pointer to reply payload
+ * @timeout: timeout in second
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_handshake_req_reply_wait(struct MPT3SAS_ADAPTER *ioc, int request_bytes,
+	u32 *request, int reply_bytes, u16 *reply, int timeout, int sleep_flag)
+{
+	MPI2DefaultReply_t *default_reply = (MPI2DefaultReply_t *)reply;
+	int i;
+	u8 failed;
+	u16 dummy;
+	__le32 *mfp;
+
+	/* make sure doorbell is not in use */
+	if ((readl(&ioc->chip->Doorbell) & MPI2_DOORBELL_USED)) {
+		pr_err(MPT3SAS_FMT
+			"doorbell is in use (line=%d)\n",
+			ioc->name, __LINE__);
+		return -EFAULT;
+	}
+
+	/* clear pending doorbell interrupts from previous state changes */
+	if (readl(&ioc->chip->HostInterruptStatus) &
+	    MPI2_HIS_IOC2SYS_DB_STATUS)
+		writel(0, &ioc->chip->HostInterruptStatus);
+
+	/* send message to ioc */
+	writel(((MPI2_FUNCTION_HANDSHAKE<<MPI2_DOORBELL_FUNCTION_SHIFT) |
+	    ((request_bytes/4)<<MPI2_DOORBELL_ADD_DWORDS_SHIFT)),
+	    &ioc->chip->Doorbell);
+
+	if ((_base_wait_for_doorbell_int(ioc, 5, NO_SLEEP))) {
+		pr_err(MPT3SAS_FMT
+			"doorbell handshake int failed (line=%d)\n",
+			ioc->name, __LINE__);
+		return -EFAULT;
+	}
+	writel(0, &ioc->chip->HostInterruptStatus);
+
+	if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag))) {
+		pr_err(MPT3SAS_FMT
+			"doorbell handshake ack failed (line=%d)\n",
+			ioc->name, __LINE__);
+		return -EFAULT;
+	}
+
+	/* send message 32-bits at a time */
+	for (i = 0, failed = 0; i < request_bytes/4 && !failed; i++) {
+		writel(cpu_to_le32(request[i]), &ioc->chip->Doorbell);
+		if ((_base_wait_for_doorbell_ack(ioc, 5, sleep_flag)))
+			failed = 1;
+	}
+
+	if (failed) {
+		pr_err(MPT3SAS_FMT
+			"doorbell handshake sending request failed (line=%d)\n",
+			ioc->name, __LINE__);
+		return -EFAULT;
+	}
+
+	/* now wait for the reply */
+	if ((_base_wait_for_doorbell_int(ioc, timeout, sleep_flag))) {
+		pr_err(MPT3SAS_FMT
+			"doorbell handshake int failed (line=%d)\n",
+			ioc->name, __LINE__);
+		return -EFAULT;
+	}
+
+	/* read the first two 16-bits, it gives the total length of the reply */
+	reply[0] = le16_to_cpu(readl(&ioc->chip->Doorbell)
+	    & MPI2_DOORBELL_DATA_MASK);
+	writel(0, &ioc->chip->HostInterruptStatus);
+	if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
+		pr_err(MPT3SAS_FMT
+			"doorbell handshake int failed (line=%d)\n",
+			ioc->name, __LINE__);
+		return -EFAULT;
+	}
+	reply[1] = le16_to_cpu(readl(&ioc->chip->Doorbell)
+	    & MPI2_DOORBELL_DATA_MASK);
+	writel(0, &ioc->chip->HostInterruptStatus);
+
+	for (i = 2; i < default_reply->MsgLength * 2; i++)  {
+		if ((_base_wait_for_doorbell_int(ioc, 5, sleep_flag))) {
+			pr_err(MPT3SAS_FMT
+				"doorbell handshake int failed (line=%d)\n",
+				ioc->name, __LINE__);
+			return -EFAULT;
+		}
+		if (i >=  reply_bytes/2) /* overflow case */
+			dummy = readl(&ioc->chip->Doorbell);
+		else
+			reply[i] = le16_to_cpu(readl(&ioc->chip->Doorbell)
+			    & MPI2_DOORBELL_DATA_MASK);
+		writel(0, &ioc->chip->HostInterruptStatus);
+	}
+
+	_base_wait_for_doorbell_int(ioc, 5, sleep_flag);
+	if (_base_wait_for_doorbell_not_used(ioc, 5, sleep_flag) != 0) {
+		dhsprintk(ioc, pr_info(MPT3SAS_FMT
+			"doorbell is in use (line=%d)\n", ioc->name, __LINE__));
+	}
+	writel(0, &ioc->chip->HostInterruptStatus);
+
+	if (ioc->logging_level & MPT_DEBUG_INIT) {
+		mfp = (__le32 *)reply;
+		pr_info("\toffset:data\n");
+		for (i = 0; i < reply_bytes/4; i++)
+			pr_info("\t[0x%02x]:%08x\n", i*4,
+			    le32_to_cpu(mfp[i]));
+	}
+	return 0;
+}
+
+/**
+ * mpt3sas_base_sas_iounit_control - send sas iounit control to FW
+ * @ioc: per adapter object
+ * @mpi_reply: the reply payload from FW
+ * @mpi_request: the request payload sent to FW
+ *
+ * The SAS IO Unit Control Request message allows the host to perform low-level
+ * operations, such as resets on the PHYs of the IO Unit, also allows the host
+ * to obtain the IOC assigned device handles for a device if it has other
+ * identifying information about the device, in addition allows the host to
+ * remove IOC resources associated with the device.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2SasIoUnitControlReply_t *mpi_reply,
+	Mpi2SasIoUnitControlRequest_t *mpi_request)
+{
+	u16 smid;
+	u32 ioc_state;
+	unsigned long timeleft;
+	u8 issue_reset;
+	int rc;
+	void *request;
+	u16 wait_state_count;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	mutex_lock(&ioc->base_cmds.mutex);
+
+	if (ioc->base_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: base_cmd in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == 10) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			rc = -EFAULT;
+			goto out;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name, __func__, wait_state_count);
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	rc = 0;
+	ioc->base_cmds.status = MPT3_CMD_PENDING;
+	request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->base_cmds.smid = smid;
+	memcpy(request, mpi_request, sizeof(Mpi2SasIoUnitControlRequest_t));
+	if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
+	    mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
+		ioc->ioc_link_reset_in_progress = 1;
+	init_completion(&ioc->base_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
+	    msecs_to_jiffies(10000));
+	if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
+	    mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET) &&
+	    ioc->ioc_link_reset_in_progress)
+		ioc->ioc_link_reset_in_progress = 0;
+	if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2SasIoUnitControlRequest_t)/4);
+		if (!(ioc->base_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+	if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
+		memcpy(mpi_reply, ioc->base_cmds.reply,
+		    sizeof(Mpi2SasIoUnitControlReply_t));
+	else
+		memset(mpi_reply, 0, sizeof(Mpi2SasIoUnitControlReply_t));
+	ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+	goto out;
+
+ issue_host_reset:
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+	ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+	rc = -EFAULT;
+ out:
+	mutex_unlock(&ioc->base_cmds.mutex);
+	return rc;
+}
+
+/**
+ * mpt3sas_base_scsi_enclosure_processor - sending request to sep device
+ * @ioc: per adapter object
+ * @mpi_reply: the reply payload from FW
+ * @mpi_request: the request payload sent to FW
+ *
+ * The SCSI Enclosure Processor request message causes the IOC to
+ * communicate with SES devices to control LED status signals.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request)
+{
+	u16 smid;
+	u32 ioc_state;
+	unsigned long timeleft;
+	u8 issue_reset;
+	int rc;
+	void *request;
+	u16 wait_state_count;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	mutex_lock(&ioc->base_cmds.mutex);
+
+	if (ioc->base_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: base_cmd in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == 10) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			rc = -EFAULT;
+			goto out;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name,
+		    __func__, wait_state_count);
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	rc = 0;
+	ioc->base_cmds.status = MPT3_CMD_PENDING;
+	request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->base_cmds.smid = smid;
+	memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
+	init_completion(&ioc->base_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
+	    msecs_to_jiffies(10000));
+	if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2SepRequest_t)/4);
+		if (!(ioc->base_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+	if (ioc->base_cmds.status & MPT3_CMD_REPLY_VALID)
+		memcpy(mpi_reply, ioc->base_cmds.reply,
+		    sizeof(Mpi2SepReply_t));
+	else
+		memset(mpi_reply, 0, sizeof(Mpi2SepReply_t));
+	ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+	goto out;
+
+ issue_host_reset:
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+	ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+	rc = -EFAULT;
+ out:
+	mutex_unlock(&ioc->base_cmds.mutex);
+	return rc;
+}
+
+/**
+ * _base_get_port_facts - obtain port facts reply and save in ioc
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_get_port_facts(struct MPT3SAS_ADAPTER *ioc, int port, int sleep_flag)
+{
+	Mpi2PortFactsRequest_t mpi_request;
+	Mpi2PortFactsReply_t mpi_reply;
+	struct mpt3sas_port_facts *pfacts;
+	int mpi_reply_sz, mpi_request_sz, r;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	mpi_reply_sz = sizeof(Mpi2PortFactsReply_t);
+	mpi_request_sz = sizeof(Mpi2PortFactsRequest_t);
+	memset(&mpi_request, 0, mpi_request_sz);
+	mpi_request.Function = MPI2_FUNCTION_PORT_FACTS;
+	mpi_request.PortNumber = port;
+	r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
+	    (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
+
+	if (r != 0) {
+		pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
+		    ioc->name, __func__, r);
+		return r;
+	}
+
+	pfacts = &ioc->pfacts[port];
+	memset(pfacts, 0, sizeof(struct mpt3sas_port_facts));
+	pfacts->PortNumber = mpi_reply.PortNumber;
+	pfacts->VP_ID = mpi_reply.VP_ID;
+	pfacts->VF_ID = mpi_reply.VF_ID;
+	pfacts->MaxPostedCmdBuffers =
+	    le16_to_cpu(mpi_reply.MaxPostedCmdBuffers);
+
+	return 0;
+}
+
+/**
+ * _base_get_ioc_facts - obtain ioc facts reply and save in ioc
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+{
+	Mpi2IOCFactsRequest_t mpi_request;
+	Mpi2IOCFactsReply_t mpi_reply;
+	struct mpt3sas_facts *facts;
+	int mpi_reply_sz, mpi_request_sz, r;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	mpi_reply_sz = sizeof(Mpi2IOCFactsReply_t);
+	mpi_request_sz = sizeof(Mpi2IOCFactsRequest_t);
+	memset(&mpi_request, 0, mpi_request_sz);
+	mpi_request.Function = MPI2_FUNCTION_IOC_FACTS;
+	r = _base_handshake_req_reply_wait(ioc, mpi_request_sz,
+	    (u32 *)&mpi_request, mpi_reply_sz, (u16 *)&mpi_reply, 5, CAN_SLEEP);
+
+	if (r != 0) {
+		pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
+		    ioc->name, __func__, r);
+		return r;
+	}
+
+	facts = &ioc->facts;
+	memset(facts, 0, sizeof(struct mpt3sas_facts));
+	facts->MsgVersion = le16_to_cpu(mpi_reply.MsgVersion);
+	facts->HeaderVersion = le16_to_cpu(mpi_reply.HeaderVersion);
+	facts->VP_ID = mpi_reply.VP_ID;
+	facts->VF_ID = mpi_reply.VF_ID;
+	facts->IOCExceptions = le16_to_cpu(mpi_reply.IOCExceptions);
+	facts->MaxChainDepth = mpi_reply.MaxChainDepth;
+	facts->WhoInit = mpi_reply.WhoInit;
+	facts->NumberOfPorts = mpi_reply.NumberOfPorts;
+	facts->MaxMSIxVectors = mpi_reply.MaxMSIxVectors;
+	facts->RequestCredit = le16_to_cpu(mpi_reply.RequestCredit);
+	facts->MaxReplyDescriptorPostQueueDepth =
+	    le16_to_cpu(mpi_reply.MaxReplyDescriptorPostQueueDepth);
+	facts->ProductID = le16_to_cpu(mpi_reply.ProductID);
+	facts->IOCCapabilities = le32_to_cpu(mpi_reply.IOCCapabilities);
+	if ((facts->IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_INTEGRATED_RAID))
+		ioc->ir_firmware = 1;
+	facts->FWVersion.Word = le32_to_cpu(mpi_reply.FWVersion.Word);
+	facts->IOCRequestFrameSize =
+	    le16_to_cpu(mpi_reply.IOCRequestFrameSize);
+	facts->MaxInitiators = le16_to_cpu(mpi_reply.MaxInitiators);
+	facts->MaxTargets = le16_to_cpu(mpi_reply.MaxTargets);
+	ioc->shost->max_id = -1;
+	facts->MaxSasExpanders = le16_to_cpu(mpi_reply.MaxSasExpanders);
+	facts->MaxEnclosures = le16_to_cpu(mpi_reply.MaxEnclosures);
+	facts->ProtocolFlags = le16_to_cpu(mpi_reply.ProtocolFlags);
+	facts->HighPriorityCredit =
+	    le16_to_cpu(mpi_reply.HighPriorityCredit);
+	facts->ReplyFrameSize = mpi_reply.ReplyFrameSize;
+	facts->MaxDevHandle = le16_to_cpu(mpi_reply.MaxDevHandle);
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"hba queue depth(%d), max chains per io(%d)\n",
+		ioc->name, facts->RequestCredit,
+	    facts->MaxChainDepth));
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT
+		"request frame size(%d), reply frame size(%d)\n", ioc->name,
+	    facts->IOCRequestFrameSize * 4, facts->ReplyFrameSize * 4));
+	return 0;
+}
+
+/**
+ * _base_send_ioc_init - send ioc_init to firmware
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_send_ioc_init(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+{
+	Mpi2IOCInitRequest_t mpi_request;
+	Mpi2IOCInitReply_t mpi_reply;
+	int r;
+	struct timeval current_time;
+	u16 ioc_status;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	memset(&mpi_request, 0, sizeof(Mpi2IOCInitRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_IOC_INIT;
+	mpi_request.WhoInit = MPI2_WHOINIT_HOST_DRIVER;
+	mpi_request.VF_ID = 0; /* TODO */
+	mpi_request.VP_ID = 0;
+	mpi_request.MsgVersion = cpu_to_le16(MPI2_VERSION);
+	mpi_request.HeaderVersion = cpu_to_le16(MPI2_HEADER_VERSION);
+
+	if (_base_is_controller_msix_enabled(ioc))
+		mpi_request.HostMSIxVectors = ioc->reply_queue_count;
+	mpi_request.SystemRequestFrameSize = cpu_to_le16(ioc->request_sz/4);
+	mpi_request.ReplyDescriptorPostQueueDepth =
+	    cpu_to_le16(ioc->reply_post_queue_depth);
+	mpi_request.ReplyFreeQueueDepth =
+	    cpu_to_le16(ioc->reply_free_queue_depth);
+
+	mpi_request.SenseBufferAddressHigh =
+	    cpu_to_le32((u64)ioc->sense_dma >> 32);
+	mpi_request.SystemReplyAddressHigh =
+	    cpu_to_le32((u64)ioc->reply_dma >> 32);
+	mpi_request.SystemRequestFrameBaseAddress =
+	    cpu_to_le64((u64)ioc->request_dma);
+	mpi_request.ReplyFreeQueueAddress =
+	    cpu_to_le64((u64)ioc->reply_free_dma);
+	mpi_request.ReplyDescriptorPostQueueAddress =
+	    cpu_to_le64((u64)ioc->reply_post_free_dma);
+
+
+	/* This time stamp specifies number of milliseconds
+	 * since epoch ~ midnight January 1, 1970.
+	 */
+	do_gettimeofday(&current_time);
+	mpi_request.TimeStamp = cpu_to_le64((u64)current_time.tv_sec * 1000 +
+	    (current_time.tv_usec / 1000));
+
+	if (ioc->logging_level & MPT_DEBUG_INIT) {
+		__le32 *mfp;
+		int i;
+
+		mfp = (__le32 *)&mpi_request;
+		pr_info("\toffset:data\n");
+		for (i = 0; i < sizeof(Mpi2IOCInitRequest_t)/4; i++)
+			pr_info("\t[0x%02x]:%08x\n", i*4,
+			    le32_to_cpu(mfp[i]));
+	}
+
+	r = _base_handshake_req_reply_wait(ioc,
+	    sizeof(Mpi2IOCInitRequest_t), (u32 *)&mpi_request,
+	    sizeof(Mpi2IOCInitReply_t), (u16 *)&mpi_reply, 10,
+	    sleep_flag);
+
+	if (r != 0) {
+		pr_err(MPT3SAS_FMT "%s: handshake failed (r=%d)\n",
+		    ioc->name, __func__, r);
+		return r;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS ||
+	    mpi_reply.IOCLogInfo) {
+		pr_err(MPT3SAS_FMT "%s: failed\n", ioc->name, __func__);
+		r = -EIO;
+	}
+
+	return 0;
+}
+
+/**
+ * mpt3sas_port_enable_done - command completion routine for port enable
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_port_enable_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+	u16 ioc_status;
+
+	if (ioc->port_enable_cmds.status == MPT3_CMD_NOT_USED)
+		return 1;
+
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (!mpi_reply)
+		return 1;
+
+	if (mpi_reply->Function != MPI2_FUNCTION_PORT_ENABLE)
+		return 1;
+
+	ioc->port_enable_cmds.status &= ~MPT3_CMD_PENDING;
+	ioc->port_enable_cmds.status |= MPT3_CMD_COMPLETE;
+	ioc->port_enable_cmds.status |= MPT3_CMD_REPLY_VALID;
+	memcpy(ioc->port_enable_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
+		ioc->port_enable_failed = 1;
+
+	if (ioc->is_driver_loading) {
+		if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
+			mpt3sas_port_enable_complete(ioc);
+			return 1;
+		} else {
+			ioc->start_scan_failed = ioc_status;
+			ioc->start_scan = 0;
+			return 1;
+		}
+	}
+	complete(&ioc->port_enable_cmds.done);
+	return 1;
+}
+
+/**
+ * _base_send_port_enable - send port_enable(discovery stuff) to firmware
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_send_port_enable(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+{
+	Mpi2PortEnableRequest_t *mpi_request;
+	Mpi2PortEnableReply_t *mpi_reply;
+	unsigned long timeleft;
+	int r = 0;
+	u16 smid;
+	u16 ioc_status;
+
+	pr_info(MPT3SAS_FMT "sending port enable !!\n", ioc->name);
+
+	if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
+		pr_err(MPT3SAS_FMT "%s: internal command already in use\n",
+		    ioc->name, __func__);
+		return -EAGAIN;
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		return -EAGAIN;
+	}
+
+	ioc->port_enable_cmds.status = MPT3_CMD_PENDING;
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->port_enable_cmds.smid = smid;
+	memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
+
+	init_completion(&ioc->port_enable_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done,
+	    300*HZ);
+	if (!(ioc->port_enable_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2PortEnableRequest_t)/4);
+		if (ioc->port_enable_cmds.status & MPT3_CMD_RESET)
+			r = -EFAULT;
+		else
+			r = -ETIME;
+		goto out;
+	}
+
+	mpi_reply = ioc->port_enable_cmds.reply;
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "%s: failed with (ioc_status=0x%08x)\n",
+		    ioc->name, __func__, ioc_status);
+		r = -EFAULT;
+		goto out;
+	}
+
+ out:
+	ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
+	pr_info(MPT3SAS_FMT "port enable: %s\n", ioc->name, ((r == 0) ?
+	    "SUCCESS" : "FAILED"));
+	return r;
+}
+
+/**
+ * mpt3sas_port_enable - initiate firmware discovery (don't wait for reply)
+ * @ioc: per adapter object
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi2PortEnableRequest_t *mpi_request;
+	u16 smid;
+
+	pr_info(MPT3SAS_FMT "sending port enable !!\n", ioc->name);
+
+	if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
+		pr_err(MPT3SAS_FMT "%s: internal command already in use\n",
+		    ioc->name, __func__);
+		return -EAGAIN;
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->port_enable_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		return -EAGAIN;
+	}
+
+	ioc->port_enable_cmds.status = MPT3_CMD_PENDING;
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->port_enable_cmds.smid = smid;
+	memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
+
+	mpt3sas_base_put_smid_default(ioc, smid);
+	return 0;
+}
+
+/**
+ * _base_determine_wait_on_discovery - desposition
+ * @ioc: per adapter object
+ *
+ * Decide whether to wait on discovery to complete. Used to either
+ * locate boot device, or report volumes ahead of physical devices.
+ *
+ * Returns 1 for wait, 0 for don't wait
+ */
+static int
+_base_determine_wait_on_discovery(struct MPT3SAS_ADAPTER *ioc)
+{
+	/* We wait for discovery to complete if IR firmware is loaded.
+	 * The sas topology events arrive before PD events, so we need time to
+	 * turn on the bit in ioc->pd_handles to indicate PD
+	 * Also, it maybe required to report Volumes ahead of physical
+	 * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set.
+	 */
+	if (ioc->ir_firmware)
+		return 1;
+
+	/* if no Bios, then we don't need to wait */
+	if (!ioc->bios_pg3.BiosVersion)
+		return 0;
+
+	/* Bios is present, then we drop down here.
+	 *
+	 * If there any entries in the Bios Page 2, then we wait
+	 * for discovery to complete.
+	 */
+
+	/* Current Boot Device */
+	if ((ioc->bios_pg2.CurrentBootDeviceForm &
+	    MPI2_BIOSPAGE2_FORM_MASK) ==
+	    MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
+	/* Request Boot Device */
+	   (ioc->bios_pg2.ReqBootDeviceForm &
+	    MPI2_BIOSPAGE2_FORM_MASK) ==
+	    MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED &&
+	/* Alternate Request Boot Device */
+	   (ioc->bios_pg2.ReqAltBootDeviceForm &
+	    MPI2_BIOSPAGE2_FORM_MASK) ==
+	    MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED)
+		return 0;
+
+	return 1;
+}
+
+/**
+ * _base_unmask_events - turn on notification for this event
+ * @ioc: per adapter object
+ * @event: firmware event
+ *
+ * The mask is stored in ioc->event_masks.
+ */
+static void
+_base_unmask_events(struct MPT3SAS_ADAPTER *ioc, u16 event)
+{
+	u32 desired_event;
+
+	if (event >= 128)
+		return;
+
+	desired_event = (1 << (event % 32));
+
+	if (event < 32)
+		ioc->event_masks[0] &= ~desired_event;
+	else if (event < 64)
+		ioc->event_masks[1] &= ~desired_event;
+	else if (event < 96)
+		ioc->event_masks[2] &= ~desired_event;
+	else if (event < 128)
+		ioc->event_masks[3] &= ~desired_event;
+}
+
+/**
+ * _base_event_notification - send event notification
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_event_notification(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+{
+	Mpi2EventNotificationRequest_t *mpi_request;
+	unsigned long timeleft;
+	u16 smid;
+	int r = 0;
+	int i;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	if (ioc->base_cmds.status & MPT3_CMD_PENDING) {
+		pr_err(MPT3SAS_FMT "%s: internal command already in use\n",
+		    ioc->name, __func__);
+		return -EAGAIN;
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->base_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		return -EAGAIN;
+	}
+	ioc->base_cmds.status = MPT3_CMD_PENDING;
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->base_cmds.smid = smid;
+	memset(mpi_request, 0, sizeof(Mpi2EventNotificationRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
+	mpi_request->VF_ID = 0; /* TODO */
+	mpi_request->VP_ID = 0;
+	for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
+		mpi_request->EventMasks[i] =
+		    cpu_to_le32(ioc->event_masks[i]);
+	init_completion(&ioc->base_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
+	if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2EventNotificationRequest_t)/4);
+		if (ioc->base_cmds.status & MPT3_CMD_RESET)
+			r = -EFAULT;
+		else
+			r = -ETIME;
+	} else
+		dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s: complete\n",
+		    ioc->name, __func__));
+	ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+	return r;
+}
+
+/**
+ * mpt3sas_base_validate_event_type - validating event types
+ * @ioc: per adapter object
+ * @event: firmware event
+ *
+ * This will turn on firmware event notification when application
+ * ask for that event. We don't mask events that are already enabled.
+ */
+void
+mpt3sas_base_validate_event_type(struct MPT3SAS_ADAPTER *ioc, u32 *event_type)
+{
+	int i, j;
+	u32 event_mask, desired_event;
+	u8 send_update_to_fw;
+
+	for (i = 0, send_update_to_fw = 0; i <
+	    MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) {
+		event_mask = ~event_type[i];
+		desired_event = 1;
+		for (j = 0; j < 32; j++) {
+			if (!(event_mask & desired_event) &&
+			    (ioc->event_masks[i] & desired_event)) {
+				ioc->event_masks[i] &= ~desired_event;
+				send_update_to_fw = 1;
+			}
+			desired_event = (desired_event << 1);
+		}
+	}
+
+	if (!send_update_to_fw)
+		return;
+
+	mutex_lock(&ioc->base_cmds.mutex);
+	_base_event_notification(ioc, CAN_SLEEP);
+	mutex_unlock(&ioc->base_cmds.mutex);
+}
+
+/**
+ * _base_diag_reset - the "big hammer" start of day reset
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_diag_reset(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+{
+	u32 host_diagnostic;
+	u32 ioc_state;
+	u32 count;
+	u32 hcb_size;
+
+	pr_info(MPT3SAS_FMT "sending diag reset !!\n", ioc->name);
+
+	drsprintk(ioc, pr_info(MPT3SAS_FMT "clear interrupts\n",
+	    ioc->name));
+
+	count = 0;
+	do {
+		/* Write magic sequence to WriteSequence register
+		 * Loop until in diagnostic mode
+		 */
+		drsprintk(ioc, pr_info(MPT3SAS_FMT
+			"write magic sequence\n", ioc->name));
+		writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
+		writel(MPI2_WRSEQ_1ST_KEY_VALUE, &ioc->chip->WriteSequence);
+		writel(MPI2_WRSEQ_2ND_KEY_VALUE, &ioc->chip->WriteSequence);
+		writel(MPI2_WRSEQ_3RD_KEY_VALUE, &ioc->chip->WriteSequence);
+		writel(MPI2_WRSEQ_4TH_KEY_VALUE, &ioc->chip->WriteSequence);
+		writel(MPI2_WRSEQ_5TH_KEY_VALUE, &ioc->chip->WriteSequence);
+		writel(MPI2_WRSEQ_6TH_KEY_VALUE, &ioc->chip->WriteSequence);
+
+		/* wait 100 msec */
+		if (sleep_flag == CAN_SLEEP)
+			msleep(100);
+		else
+			mdelay(100);
+
+		if (count++ > 20)
+			goto out;
+
+		host_diagnostic = readl(&ioc->chip->HostDiagnostic);
+		drsprintk(ioc, pr_info(MPT3SAS_FMT
+			"wrote magic sequence: count(%d), host_diagnostic(0x%08x)\n",
+		    ioc->name, count, host_diagnostic));
+
+	} while ((host_diagnostic & MPI2_DIAG_DIAG_WRITE_ENABLE) == 0);
+
+	hcb_size = readl(&ioc->chip->HCBSize);
+
+	drsprintk(ioc, pr_info(MPT3SAS_FMT "diag reset: issued\n",
+	    ioc->name));
+	writel(host_diagnostic | MPI2_DIAG_RESET_ADAPTER,
+	     &ioc->chip->HostDiagnostic);
+
+	/* don't access any registers for 50 milliseconds */
+	msleep(50);
+
+	/* 300 second max wait */
+	for (count = 0; count < 3000000 ; count++) {
+
+		host_diagnostic = readl(&ioc->chip->HostDiagnostic);
+
+		if (host_diagnostic == 0xFFFFFFFF)
+			goto out;
+		if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER))
+			break;
+
+		/* wait 1 msec */
+		if (sleep_flag == CAN_SLEEP)
+			usleep_range(1000, 1500);
+		else
+			mdelay(1);
+	}
+
+	if (host_diagnostic & MPI2_DIAG_HCB_MODE) {
+
+		drsprintk(ioc, pr_info(MPT3SAS_FMT
+		"restart the adapter assuming the HCB Address points to good F/W\n",
+		    ioc->name));
+		host_diagnostic &= ~MPI2_DIAG_BOOT_DEVICE_SELECT_MASK;
+		host_diagnostic |= MPI2_DIAG_BOOT_DEVICE_SELECT_HCDW;
+		writel(host_diagnostic, &ioc->chip->HostDiagnostic);
+
+		drsprintk(ioc, pr_info(MPT3SAS_FMT
+		    "re-enable the HCDW\n", ioc->name));
+		writel(hcb_size | MPI2_HCB_SIZE_HCB_ENABLE,
+		    &ioc->chip->HCBSize);
+	}
+
+	drsprintk(ioc, pr_info(MPT3SAS_FMT "restart the adapter\n",
+	    ioc->name));
+	writel(host_diagnostic & ~MPI2_DIAG_HOLD_IOC_RESET,
+	    &ioc->chip->HostDiagnostic);
+
+	drsprintk(ioc, pr_info(MPT3SAS_FMT
+		"disable writes to the diagnostic register\n", ioc->name));
+	writel(MPI2_WRSEQ_FLUSH_KEY_VALUE, &ioc->chip->WriteSequence);
+
+	drsprintk(ioc, pr_info(MPT3SAS_FMT
+		"Wait for FW to go to the READY state\n", ioc->name));
+	ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_READY, 20,
+	    sleep_flag);
+	if (ioc_state) {
+		pr_err(MPT3SAS_FMT
+			"%s: failed going to ready state (ioc_state=0x%x)\n",
+			ioc->name, __func__, ioc_state);
+		goto out;
+	}
+
+	pr_info(MPT3SAS_FMT "diag reset: SUCCESS\n", ioc->name);
+	return 0;
+
+ out:
+	pr_err(MPT3SAS_FMT "diag reset: FAILED\n", ioc->name);
+	return -EFAULT;
+}
+
+/**
+ * _base_make_ioc_ready - put controller in READY state
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ * @type: FORCE_BIG_HAMMER or SOFT_RESET
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_make_ioc_ready(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
+	enum reset_type type)
+{
+	u32 ioc_state;
+	int rc;
+	int count;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	if (ioc->pci_error_recovery)
+		return 0;
+
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+	dhsprintk(ioc, pr_info(MPT3SAS_FMT "%s: ioc_state(0x%08x)\n",
+	    ioc->name, __func__, ioc_state));
+
+	/* if in RESET state, it should move to READY state shortly */
+	count = 0;
+	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_RESET) {
+		while ((ioc_state & MPI2_IOC_STATE_MASK) !=
+		    MPI2_IOC_STATE_READY) {
+			if (count++ == 10) {
+				pr_err(MPT3SAS_FMT
+					"%s: failed going to ready state (ioc_state=0x%x)\n",
+				    ioc->name, __func__, ioc_state);
+				return -EFAULT;
+			}
+			if (sleep_flag == CAN_SLEEP)
+				ssleep(1);
+			else
+				mdelay(1000);
+			ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+		}
+	}
+
+	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_READY)
+		return 0;
+
+	if (ioc_state & MPI2_DOORBELL_USED) {
+		dhsprintk(ioc, pr_info(MPT3SAS_FMT
+			"unexpected doorbell active!\n",
+			ioc->name));
+		goto issue_diag_reset;
+	}
+
+	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
+		mpt3sas_base_fault_info(ioc, ioc_state &
+		    MPI2_DOORBELL_DATA_MASK);
+		goto issue_diag_reset;
+	}
+
+	if (type == FORCE_BIG_HAMMER)
+		goto issue_diag_reset;
+
+	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_OPERATIONAL)
+		if (!(_base_send_ioc_reset(ioc,
+		    MPI2_FUNCTION_IOC_MESSAGE_UNIT_RESET, 15, CAN_SLEEP))) {
+			return 0;
+	}
+
+ issue_diag_reset:
+	rc = _base_diag_reset(ioc, CAN_SLEEP);
+	return rc;
+}
+
+/**
+ * _base_make_ioc_operational - put controller in OPERATIONAL state
+ * @ioc: per adapter object
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+{
+	int r, i;
+	unsigned long	flags;
+	u32 reply_address;
+	u16 smid;
+	struct _tr_list *delayed_tr, *delayed_tr_next;
+	struct adapter_reply_queue *reply_q;
+	long reply_post_free;
+	u32 reply_post_free_sz;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	/* clean the delayed target reset list */
+	list_for_each_entry_safe(delayed_tr, delayed_tr_next,
+	    &ioc->delayed_tr_list, list) {
+		list_del(&delayed_tr->list);
+		kfree(delayed_tr);
+	}
+
+
+	list_for_each_entry_safe(delayed_tr, delayed_tr_next,
+	    &ioc->delayed_tr_volume_list, list) {
+		list_del(&delayed_tr->list);
+		kfree(delayed_tr);
+	}
+
+	/* initialize the scsi lookup free list */
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	INIT_LIST_HEAD(&ioc->free_list);
+	smid = 1;
+	for (i = 0; i < ioc->scsiio_depth; i++, smid++) {
+		INIT_LIST_HEAD(&ioc->scsi_lookup[i].chain_list);
+		ioc->scsi_lookup[i].cb_idx = 0xFF;
+		ioc->scsi_lookup[i].smid = smid;
+		ioc->scsi_lookup[i].scmd = NULL;
+		list_add_tail(&ioc->scsi_lookup[i].tracker_list,
+		    &ioc->free_list);
+	}
+
+	/* hi-priority queue */
+	INIT_LIST_HEAD(&ioc->hpr_free_list);
+	smid = ioc->hi_priority_smid;
+	for (i = 0; i < ioc->hi_priority_depth; i++, smid++) {
+		ioc->hpr_lookup[i].cb_idx = 0xFF;
+		ioc->hpr_lookup[i].smid = smid;
+		list_add_tail(&ioc->hpr_lookup[i].tracker_list,
+		    &ioc->hpr_free_list);
+	}
+
+	/* internal queue */
+	INIT_LIST_HEAD(&ioc->internal_free_list);
+	smid = ioc->internal_smid;
+	for (i = 0; i < ioc->internal_depth; i++, smid++) {
+		ioc->internal_lookup[i].cb_idx = 0xFF;
+		ioc->internal_lookup[i].smid = smid;
+		list_add_tail(&ioc->internal_lookup[i].tracker_list,
+		    &ioc->internal_free_list);
+	}
+
+	/* chain pool */
+	INIT_LIST_HEAD(&ioc->free_chain_list);
+	for (i = 0; i < ioc->chain_depth; i++)
+		list_add_tail(&ioc->chain_lookup[i].tracker_list,
+		    &ioc->free_chain_list);
+
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+	/* initialize Reply Free Queue */
+	for (i = 0, reply_address = (u32)ioc->reply_dma ;
+	    i < ioc->reply_free_queue_depth ; i++, reply_address +=
+	    ioc->reply_sz)
+		ioc->reply_free[i] = cpu_to_le32(reply_address);
+
+	/* initialize reply queues */
+	if (ioc->is_driver_loading)
+		_base_assign_reply_queues(ioc);
+
+	/* initialize Reply Post Free Queue */
+	reply_post_free = (long)ioc->reply_post_free;
+	reply_post_free_sz = ioc->reply_post_queue_depth *
+	    sizeof(Mpi2DefaultReplyDescriptor_t);
+	list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
+		reply_q->reply_post_host_index = 0;
+		reply_q->reply_post_free = (Mpi2ReplyDescriptorsUnion_t *)
+		    reply_post_free;
+		for (i = 0; i < ioc->reply_post_queue_depth; i++)
+			reply_q->reply_post_free[i].Words =
+			    cpu_to_le64(ULLONG_MAX);
+		if (!_base_is_controller_msix_enabled(ioc))
+			goto skip_init_reply_post_free_queue;
+		reply_post_free += reply_post_free_sz;
+	}
+ skip_init_reply_post_free_queue:
+
+	r = _base_send_ioc_init(ioc, sleep_flag);
+	if (r)
+		return r;
+
+	/* initialize reply free host index */
+	ioc->reply_free_host_index = ioc->reply_free_queue_depth - 1;
+	writel(ioc->reply_free_host_index, &ioc->chip->ReplyFreeHostIndex);
+
+	/* initialize reply post host index */
+	list_for_each_entry(reply_q, &ioc->reply_queue_list, list) {
+		writel(reply_q->msix_index << MPI2_RPHI_MSIX_INDEX_SHIFT,
+		    &ioc->chip->ReplyPostHostIndex);
+		if (!_base_is_controller_msix_enabled(ioc))
+			goto skip_init_reply_post_host_index;
+	}
+
+ skip_init_reply_post_host_index:
+
+	_base_unmask_interrupts(ioc);
+	r = _base_event_notification(ioc, sleep_flag);
+	if (r)
+		return r;
+
+	if (sleep_flag == CAN_SLEEP)
+		_base_static_config_pages(ioc);
+
+
+	if (ioc->is_driver_loading) {
+		ioc->wait_for_discovery_to_complete =
+		    _base_determine_wait_on_discovery(ioc);
+
+		return r; /* scan_start and scan_finished support */
+	}
+
+	r = _base_send_port_enable(ioc, sleep_flag);
+	if (r)
+		return r;
+
+	return r;
+}
+
+/**
+ * mpt3sas_base_free_resources - free resources controller resources
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct pci_dev *pdev = ioc->pdev;
+
+	dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	_base_mask_interrupts(ioc);
+	ioc->shost_recovery = 1;
+	_base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
+	ioc->shost_recovery = 0;
+	_base_free_irq(ioc);
+	_base_disable_msix(ioc);
+	if (ioc->chip_phys)
+		iounmap(ioc->chip);
+	ioc->chip_phys = 0;
+	pci_release_selected_regions(ioc->pdev, ioc->bars);
+	pci_disable_pcie_error_reporting(pdev);
+	pci_disable_device(pdev);
+	return;
+}
+
+/**
+ * mpt3sas_base_attach - attach controller instance
+ * @ioc: per adapter object
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
+{
+	int r, i;
+	int cpu_id, last_cpu_id = 0;
+
+	dinitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	/* setup cpu_msix_table */
+	ioc->cpu_count = num_online_cpus();
+	for_each_online_cpu(cpu_id)
+		last_cpu_id = cpu_id;
+	ioc->cpu_msix_table_sz = last_cpu_id + 1;
+	ioc->cpu_msix_table = kzalloc(ioc->cpu_msix_table_sz, GFP_KERNEL);
+	ioc->reply_queue_count = 1;
+	if (!ioc->cpu_msix_table) {
+		dfailprintk(ioc, pr_info(MPT3SAS_FMT
+			"allocation for cpu_msix_table failed!!!\n",
+			ioc->name));
+		r = -ENOMEM;
+		goto out_free_resources;
+	}
+
+	r = mpt3sas_base_map_resources(ioc);
+	if (r)
+		goto out_free_resources;
+
+
+	pci_set_drvdata(ioc->pdev, ioc->shost);
+	r = _base_get_ioc_facts(ioc, CAN_SLEEP);
+	if (r)
+		goto out_free_resources;
+
+	/*
+	 * In SAS3.0,
+	 * SCSI_IO, SMP_PASSTHRU, SATA_PASSTHRU, Target Assist, and
+	 * Target Status - all require the IEEE formated scatter gather
+	 * elements.
+	 */
+
+	ioc->build_sg_scmd = &_base_build_sg_scmd_ieee;
+	ioc->build_sg = &_base_build_sg_ieee;
+	ioc->build_zero_len_sge = &_base_build_zero_len_sge_ieee;
+	ioc->mpi25 = 1;
+	ioc->sge_size_ieee = sizeof(Mpi2IeeeSgeSimple64_t);
+
+	/*
+	 * These function pointers for other requests that don't
+	 * the require IEEE scatter gather elements.
+	 *
+	 * For example Configuration Pages and SAS IOUNIT Control don't.
+	 */
+	ioc->build_sg_mpi = &_base_build_sg;
+	ioc->build_zero_len_sge_mpi = &_base_build_zero_len_sge;
+
+	r = _base_make_ioc_ready(ioc, CAN_SLEEP, SOFT_RESET);
+	if (r)
+		goto out_free_resources;
+
+	ioc->pfacts = kcalloc(ioc->facts.NumberOfPorts,
+	    sizeof(struct mpt3sas_port_facts), GFP_KERNEL);
+	if (!ioc->pfacts) {
+		r = -ENOMEM;
+		goto out_free_resources;
+	}
+
+	for (i = 0 ; i < ioc->facts.NumberOfPorts; i++) {
+		r = _base_get_port_facts(ioc, i, CAN_SLEEP);
+		if (r)
+			goto out_free_resources;
+	}
+
+	r = _base_allocate_memory_pools(ioc, CAN_SLEEP);
+	if (r)
+		goto out_free_resources;
+
+	init_waitqueue_head(&ioc->reset_wq);
+
+	/* allocate memory pd handle bitmask list */
+	ioc->pd_handles_sz = (ioc->facts.MaxDevHandle / 8);
+	if (ioc->facts.MaxDevHandle % 8)
+		ioc->pd_handles_sz++;
+	ioc->pd_handles = kzalloc(ioc->pd_handles_sz,
+	    GFP_KERNEL);
+	if (!ioc->pd_handles) {
+		r = -ENOMEM;
+		goto out_free_resources;
+	}
+	ioc->blocking_handles = kzalloc(ioc->pd_handles_sz,
+	    GFP_KERNEL);
+	if (!ioc->blocking_handles) {
+		r = -ENOMEM;
+		goto out_free_resources;
+	}
+
+	ioc->fwfault_debug = mpt3sas_fwfault_debug;
+
+	/* base internal command bits */
+	mutex_init(&ioc->base_cmds.mutex);
+	ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
+	ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+
+	/* port_enable command bits */
+	ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
+	ioc->port_enable_cmds.status = MPT3_CMD_NOT_USED;
+
+	/* transport internal command bits */
+	ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
+	ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_init(&ioc->transport_cmds.mutex);
+
+	/* scsih internal command bits */
+	ioc->scsih_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
+	ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_init(&ioc->scsih_cmds.mutex);
+
+	/* task management internal command bits */
+	ioc->tm_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
+	ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_init(&ioc->tm_cmds.mutex);
+
+	/* config page internal command bits */
+	ioc->config_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
+	ioc->config_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_init(&ioc->config_cmds.mutex);
+
+	/* ctl module internal command bits */
+	ioc->ctl_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL);
+	ioc->ctl_cmds.sense = kzalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
+	ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_init(&ioc->ctl_cmds.mutex);
+
+	if (!ioc->base_cmds.reply || !ioc->transport_cmds.reply ||
+	    !ioc->scsih_cmds.reply || !ioc->tm_cmds.reply ||
+	    !ioc->config_cmds.reply || !ioc->ctl_cmds.reply ||
+	    !ioc->ctl_cmds.sense) {
+		r = -ENOMEM;
+		goto out_free_resources;
+	}
+
+	for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
+		ioc->event_masks[i] = -1;
+
+	/* here we enable the events we care about */
+	_base_unmask_events(ioc, MPI2_EVENT_SAS_DISCOVERY);
+	_base_unmask_events(ioc, MPI2_EVENT_SAS_BROADCAST_PRIMITIVE);
+	_base_unmask_events(ioc, MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST);
+	_base_unmask_events(ioc, MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
+	_base_unmask_events(ioc, MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE);
+	_base_unmask_events(ioc, MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST);
+	_base_unmask_events(ioc, MPI2_EVENT_IR_VOLUME);
+	_base_unmask_events(ioc, MPI2_EVENT_IR_PHYSICAL_DISK);
+	_base_unmask_events(ioc, MPI2_EVENT_IR_OPERATION_STATUS);
+	_base_unmask_events(ioc, MPI2_EVENT_LOG_ENTRY_ADDED);
+
+	r = _base_make_ioc_operational(ioc, CAN_SLEEP);
+	if (r)
+		goto out_free_resources;
+
+	return 0;
+
+ out_free_resources:
+
+	ioc->remove_host = 1;
+
+	mpt3sas_base_free_resources(ioc);
+	_base_release_memory_pools(ioc);
+	pci_set_drvdata(ioc->pdev, NULL);
+	kfree(ioc->cpu_msix_table);
+	kfree(ioc->pd_handles);
+	kfree(ioc->blocking_handles);
+	kfree(ioc->tm_cmds.reply);
+	kfree(ioc->transport_cmds.reply);
+	kfree(ioc->scsih_cmds.reply);
+	kfree(ioc->config_cmds.reply);
+	kfree(ioc->base_cmds.reply);
+	kfree(ioc->port_enable_cmds.reply);
+	kfree(ioc->ctl_cmds.reply);
+	kfree(ioc->ctl_cmds.sense);
+	kfree(ioc->pfacts);
+	ioc->ctl_cmds.reply = NULL;
+	ioc->base_cmds.reply = NULL;
+	ioc->tm_cmds.reply = NULL;
+	ioc->scsih_cmds.reply = NULL;
+	ioc->transport_cmds.reply = NULL;
+	ioc->config_cmds.reply = NULL;
+	ioc->pfacts = NULL;
+	return r;
+}
+
+
+/**
+ * mpt3sas_base_detach - remove controller instance
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_base_detach(struct MPT3SAS_ADAPTER *ioc)
+{
+	dexitprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	mpt3sas_base_stop_watchdog(ioc);
+	mpt3sas_base_free_resources(ioc);
+	_base_release_memory_pools(ioc);
+	pci_set_drvdata(ioc->pdev, NULL);
+	kfree(ioc->cpu_msix_table);
+	kfree(ioc->pd_handles);
+	kfree(ioc->blocking_handles);
+	kfree(ioc->pfacts);
+	kfree(ioc->ctl_cmds.reply);
+	kfree(ioc->ctl_cmds.sense);
+	kfree(ioc->base_cmds.reply);
+	kfree(ioc->port_enable_cmds.reply);
+	kfree(ioc->tm_cmds.reply);
+	kfree(ioc->transport_cmds.reply);
+	kfree(ioc->scsih_cmds.reply);
+	kfree(ioc->config_cmds.reply);
+}
+
+/**
+ * _base_reset_handler - reset callback handler (for base)
+ * @ioc: per adapter object
+ * @reset_phase: phase
+ *
+ * The handler for doing any required cleanup or initialization.
+ *
+ * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
+ * MPT3_IOC_DONE_RESET
+ *
+ * Return nothing.
+ */
+static void
+_base_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
+{
+	mpt3sas_scsih_reset_handler(ioc, reset_phase);
+	mpt3sas_ctl_reset_handler(ioc, reset_phase);
+	switch (reset_phase) {
+	case MPT3_IOC_PRE_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
+		break;
+	case MPT3_IOC_AFTER_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
+		if (ioc->transport_cmds.status & MPT3_CMD_PENDING) {
+			ioc->transport_cmds.status |= MPT3_CMD_RESET;
+			mpt3sas_base_free_smid(ioc, ioc->transport_cmds.smid);
+			complete(&ioc->transport_cmds.done);
+		}
+		if (ioc->base_cmds.status & MPT3_CMD_PENDING) {
+			ioc->base_cmds.status |= MPT3_CMD_RESET;
+			mpt3sas_base_free_smid(ioc, ioc->base_cmds.smid);
+			complete(&ioc->base_cmds.done);
+		}
+		if (ioc->port_enable_cmds.status & MPT3_CMD_PENDING) {
+			ioc->port_enable_failed = 1;
+			ioc->port_enable_cmds.status |= MPT3_CMD_RESET;
+			mpt3sas_base_free_smid(ioc, ioc->port_enable_cmds.smid);
+			if (ioc->is_driver_loading) {
+				ioc->start_scan_failed =
+				    MPI2_IOCSTATUS_INTERNAL_ERROR;
+				ioc->start_scan = 0;
+				ioc->port_enable_cmds.status =
+				    MPT3_CMD_NOT_USED;
+			} else
+				complete(&ioc->port_enable_cmds.done);
+		}
+		if (ioc->config_cmds.status & MPT3_CMD_PENDING) {
+			ioc->config_cmds.status |= MPT3_CMD_RESET;
+			mpt3sas_base_free_smid(ioc, ioc->config_cmds.smid);
+			ioc->config_cmds.smid = USHRT_MAX;
+			complete(&ioc->config_cmds.done);
+		}
+		break;
+	case MPT3_IOC_DONE_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
+		break;
+	}
+}
+
+/**
+ * _wait_for_commands_to_complete - reset controller
+ * @ioc: Pointer to MPT_ADAPTER structure
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ *
+ * This function waiting(3s) for all pending commands to complete
+ * prior to putting controller in reset.
+ */
+static void
+_wait_for_commands_to_complete(struct MPT3SAS_ADAPTER *ioc, int sleep_flag)
+{
+	u32 ioc_state;
+	unsigned long flags;
+	u16 i;
+
+	ioc->pending_io_count = 0;
+	if (sleep_flag != CAN_SLEEP)
+		return;
+
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+	if ((ioc_state & MPI2_IOC_STATE_MASK) != MPI2_IOC_STATE_OPERATIONAL)
+		return;
+
+	/* pending command count */
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	for (i = 0; i < ioc->scsiio_depth; i++)
+		if (ioc->scsi_lookup[i].cb_idx != 0xFF)
+			ioc->pending_io_count++;
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+	if (!ioc->pending_io_count)
+		return;
+
+	/* wait for pending commands to complete */
+	wait_event_timeout(ioc->reset_wq, ioc->pending_io_count == 0, 10 * HZ);
+}
+
+/**
+ * mpt3sas_base_hard_reset_handler - reset controller
+ * @ioc: Pointer to MPT_ADAPTER structure
+ * @sleep_flag: CAN_SLEEP or NO_SLEEP
+ * @type: FORCE_BIG_HAMMER or SOFT_RESET
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
+	enum reset_type type)
+{
+	int r;
+	unsigned long flags;
+	u32 ioc_state;
+	u8 is_fault = 0, is_trigger = 0;
+
+	dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
+	    __func__));
+
+	if (ioc->pci_error_recovery) {
+		pr_err(MPT3SAS_FMT "%s: pci error recovery reset\n",
+		    ioc->name, __func__);
+		r = 0;
+		goto out_unlocked;
+	}
+
+	if (mpt3sas_fwfault_debug)
+		mpt3sas_halt_firmware(ioc);
+
+	/* TODO - What we really should be doing is pulling
+	 * out all the code associated with NO_SLEEP; its never used.
+	 * That is legacy code from mpt fusion driver, ported over.
+	 * I will leave this BUG_ON here for now till its been resolved.
+	 */
+	BUG_ON(sleep_flag == NO_SLEEP);
+
+	/* wait for an active reset in progress to complete */
+	if (!mutex_trylock(&ioc->reset_in_progress_mutex)) {
+		do {
+			ssleep(1);
+		} while (ioc->shost_recovery == 1);
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+		    __func__));
+		return ioc->ioc_reset_in_progress_status;
+	}
+
+	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+	ioc->shost_recovery = 1;
+	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) &&
+	    (!(ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED))) {
+		is_trigger = 1;
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+		if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT)
+			is_fault = 1;
+	}
+	_base_reset_handler(ioc, MPT3_IOC_PRE_RESET);
+	_wait_for_commands_to_complete(ioc, sleep_flag);
+	_base_mask_interrupts(ioc);
+	r = _base_make_ioc_ready(ioc, sleep_flag, type);
+	if (r)
+		goto out;
+	_base_reset_handler(ioc, MPT3_IOC_AFTER_RESET);
+
+	/* If this hard reset is called while port enable is active, then
+	 * there is no reason to call make_ioc_operational
+	 */
+	if (ioc->is_driver_loading && ioc->port_enable_failed) {
+		ioc->remove_host = 1;
+		r = -EFAULT;
+		goto out;
+	}
+	r = _base_get_ioc_facts(ioc, CAN_SLEEP);
+	if (r)
+		goto out;
+	r = _base_make_ioc_operational(ioc, sleep_flag);
+	if (!r)
+		_base_reset_handler(ioc, MPT3_IOC_DONE_RESET);
+
+ out:
+	dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: %s\n",
+	    ioc->name, __func__, ((r == 0) ? "SUCCESS" : "FAILED")));
+
+	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
+	ioc->ioc_reset_in_progress_status = r;
+	ioc->shost_recovery = 0;
+	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
+	ioc->ioc_reset_count++;
+	mutex_unlock(&ioc->reset_in_progress_mutex);
+
+ out_unlocked:
+	if ((r == 0) && is_trigger) {
+		if (is_fault)
+			mpt3sas_trigger_master(ioc, MASTER_TRIGGER_FW_FAULT);
+		else
+			mpt3sas_trigger_master(ioc,
+			    MASTER_TRIGGER_ADAPTER_RESET);
+	}
+	dtmprintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+	    __func__));
+	return r;
+}
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
new file mode 100644
index 000000000000..994656cbfac9
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -0,0 +1,1139 @@
+/*
+ * This is the Fusion MPT base driver providing common API layer interface
+ * for access to MPT (Message Passing Technology) firmware.
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_base.h
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#ifndef MPT3SAS_BASE_H_INCLUDED
+#define MPT3SAS_BASE_H_INCLUDED
+
+#include "mpi/mpi2_type.h"
+#include "mpi/mpi2.h"
+#include "mpi/mpi2_ioc.h"
+#include "mpi/mpi2_cnfg.h"
+#include "mpi/mpi2_init.h"
+#include "mpi/mpi2_raid.h"
+#include "mpi/mpi2_tool.h"
+#include "mpi/mpi2_sas.h"
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_transport_sas.h>
+#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_eh.h>
+
+#include "mpt3sas_debug.h"
+#include "mpt3sas_trigger_diag.h"
+
+/* driver versioning info */
+#define MPT3SAS_DRIVER_NAME		"mpt3sas"
+#define MPT3SAS_AUTHOR	"LSI Corporation <DL-MPTFusionLinux@lsi.com>"
+#define MPT3SAS_DESCRIPTION	"LSI MPT Fusion SAS 3.0 Device Driver"
+#define MPT3SAS_DRIVER_VERSION		"01.100.01.00"
+#define MPT3SAS_MAJOR_VERSION		1
+#define MPT3SAS_MINOR_VERSION		100
+#define MPT3SAS_BUILD_VERSION		1
+#define MPT3SAS_RELEASE_VERSION	00
+
+/*
+ * Set MPT3SAS_SG_DEPTH value based on user input.
+ */
+#define MPT3SAS_MAX_PHYS_SEGMENTS	SCSI_MAX_SG_SEGMENTS
+#define MPT3SAS_MIN_PHYS_SEGMENTS	16
+#ifdef CONFIG_SCSI_MPT3SAS_MAX_SGE
+#define MPT3SAS_SG_DEPTH		CONFIG_SCSI_MPT3SAS_MAX_SGE
+#else
+#define MPT3SAS_SG_DEPTH		MPT3SAS_MAX_PHYS_SEGMENTS
+#endif
+
+
+/*
+ * Generic Defines
+ */
+#define MPT3SAS_SATA_QUEUE_DEPTH	32
+#define MPT3SAS_SAS_QUEUE_DEPTH		254
+#define MPT3SAS_RAID_QUEUE_DEPTH	128
+
+#define MPT_NAME_LENGTH			32	/* generic length of strings */
+#define MPT_STRING_LENGTH		64
+
+#define MPT_MAX_CALLBACKS		32
+
+
+#define	 CAN_SLEEP			1
+#define  NO_SLEEP			0
+
+#define INTERNAL_CMDS_COUNT		10	/* reserved cmds */
+
+#define MPI3_HIM_MASK			0xFFFFFFFF /* mask every bit*/
+
+#define MPT3SAS_INVALID_DEVICE_HANDLE	0xFFFF
+
+/*
+ * reset phases
+ */
+#define MPT3_IOC_PRE_RESET		1 /* prior to host reset */
+#define MPT3_IOC_AFTER_RESET		2 /* just after host reset */
+#define MPT3_IOC_DONE_RESET		3 /* links re-initialized */
+
+/*
+ * logging format
+ */
+#define MPT3SAS_FMT			"%s: "
+
+/*
+ * per target private data
+ */
+#define MPT_TARGET_FLAGS_RAID_COMPONENT	0x01
+#define MPT_TARGET_FLAGS_VOLUME		0x02
+#define MPT_TARGET_FLAGS_DELETED	0x04
+#define MPT_TARGET_FASTPATH_IO		0x08
+
+
+
+/*
+ * status bits for ioc->diag_buffer_status
+ */
+#define MPT3_DIAG_BUFFER_IS_REGISTERED	(0x01)
+#define MPT3_DIAG_BUFFER_IS_RELEASED	(0x02)
+#define MPT3_DIAG_BUFFER_IS_DIAG_RESET	(0x04)
+
+
+/* OEM Identifiers */
+#define MFG10_OEM_ID_INVALID                   (0x00000000)
+#define MFG10_OEM_ID_DELL                      (0x00000001)
+#define MFG10_OEM_ID_FSC                       (0x00000002)
+#define MFG10_OEM_ID_SUN                       (0x00000003)
+#define MFG10_OEM_ID_IBM                       (0x00000004)
+
+/* GENERIC Flags 0*/
+#define MFG10_GF0_OCE_DISABLED                 (0x00000001)
+#define MFG10_GF0_R1E_DRIVE_COUNT              (0x00000002)
+#define MFG10_GF0_R10_DISPLAY                  (0x00000004)
+#define MFG10_GF0_SSD_DATA_SCRUB_DISABLE       (0x00000008)
+#define MFG10_GF0_SINGLE_DRIVE_R0              (0x00000010)
+
+/* OEM Specific Flags will come from OEM specific header files */
+struct Mpi2ManufacturingPage10_t {
+	MPI2_CONFIG_PAGE_HEADER	Header;		/* 00h */
+	U8	OEMIdentifier;			/* 04h */
+	U8	Reserved1;			/* 05h */
+	U16	Reserved2;			/* 08h */
+	U32	Reserved3;			/* 0Ch */
+	U32	GenericFlags0;			/* 10h */
+	U32	GenericFlags1;			/* 14h */
+	U32	Reserved4;			/* 18h */
+	U32	OEMSpecificFlags0;		/* 1Ch */
+	U32	OEMSpecificFlags1;		/* 20h */
+	U32	Reserved5[18];			/* 24h - 60h*/
+};
+
+
+/* Miscellaneous options */
+struct Mpi2ManufacturingPage11_t {
+	MPI2_CONFIG_PAGE_HEADER Header;		/* 00h */
+	__le32	Reserved1;			/* 04h */
+	u8	Reserved2;			/* 08h */
+	u8	EEDPTagMode;			/* 09h */
+	u8	Reserved3;			/* 0Ah */
+	u8	Reserved4;			/* 0Bh */
+	__le32	Reserved5[23];			/* 0Ch-60h*/
+};
+
+/**
+ * struct MPT3SAS_TARGET - starget private hostdata
+ * @starget: starget object
+ * @sas_address: target sas address
+ * @handle: device handle
+ * @num_luns: number luns
+ * @flags: MPT_TARGET_FLAGS_XXX flags
+ * @deleted: target flaged for deletion
+ * @tm_busy: target is busy with TM request.
+ */
+struct MPT3SAS_TARGET {
+	struct scsi_target *starget;
+	u64	sas_address;
+	u16	handle;
+	int	num_luns;
+	u32	flags;
+	u8	deleted;
+	u8	tm_busy;
+};
+
+
+/*
+ * per device private data
+ */
+#define MPT_DEVICE_FLAGS_INIT		0x01
+#define MPT_DEVICE_TLR_ON		0x02
+
+/**
+ * struct MPT3SAS_DEVICE - sdev private hostdata
+ * @sas_target: starget private hostdata
+ * @lun: lun number
+ * @flags: MPT_DEVICE_XXX flags
+ * @configured_lun: lun is configured
+ * @block: device is in SDEV_BLOCK state
+ * @tlr_snoop_check: flag used in determining whether to disable TLR
+ * @eedp_enable: eedp support enable bit
+ * @eedp_type: 0(type_1), 1(type_2), 2(type_3)
+ * @eedp_block_length: block size
+ */
+struct MPT3SAS_DEVICE {
+	struct MPT3SAS_TARGET *sas_target;
+	unsigned int	lun;
+	u32	flags;
+	u8	configured_lun;
+	u8	block;
+	u8	tlr_snoop_check;
+};
+
+#define MPT3_CMD_NOT_USED	0x8000	/* free */
+#define MPT3_CMD_COMPLETE	0x0001	/* completed */
+#define MPT3_CMD_PENDING	0x0002	/* pending */
+#define MPT3_CMD_REPLY_VALID	0x0004	/* reply is valid */
+#define MPT3_CMD_RESET		0x0008	/* host reset dropped the command */
+
+/**
+ * struct _internal_cmd - internal commands struct
+ * @mutex: mutex
+ * @done: completion
+ * @reply: reply message pointer
+ * @sense: sense data
+ * @status: MPT3_CMD_XXX status
+ * @smid: system message id
+ */
+struct _internal_cmd {
+	struct mutex mutex;
+	struct completion done;
+	void	*reply;
+	void	*sense;
+	u16	status;
+	u16	smid;
+};
+
+
+
+/**
+ * struct _sas_device - attached device information
+ * @list: sas device list
+ * @starget: starget object
+ * @sas_address: device sas address
+ * @device_name: retrieved from the SAS IDENTIFY frame.
+ * @handle: device handle
+ * @sas_address_parent: sas address of parent expander or sas host
+ * @enclosure_handle: enclosure handle
+ * @enclosure_logical_id: enclosure logical identifier
+ * @volume_handle: volume handle (valid when hidden raid member)
+ * @volume_wwid: volume unique identifier
+ * @device_info: bitfield provides detailed info about the device
+ * @id: target id
+ * @channel: target channel
+ * @slot: number number
+ * @phy: phy identifier provided in sas device page 0
+ * @fast_path: fast path feature enable bit
+ * @responding: used in _scsih_sas_device_mark_responding
+ */
+struct _sas_device {
+	struct list_head list;
+	struct scsi_target *starget;
+	u64	sas_address;
+	u64	device_name;
+	u16	handle;
+	u64	sas_address_parent;
+	u16	enclosure_handle;
+	u64	enclosure_logical_id;
+	u16	volume_handle;
+	u64	volume_wwid;
+	u32	device_info;
+	int	id;
+	int	channel;
+	u16	slot;
+	u8	phy;
+	u8	responding;
+	u8	fast_path;
+};
+
+/**
+ * struct _raid_device - raid volume link list
+ * @list: sas device list
+ * @starget: starget object
+ * @sdev: scsi device struct (volumes are single lun)
+ * @wwid: unique identifier for the volume
+ * @handle: device handle
+ * @id: target id
+ * @channel: target channel
+ * @volume_type: the raid level
+ * @device_info: bitfield provides detailed info about the hidden components
+ * @num_pds: number of hidden raid components
+ * @responding: used in _scsih_raid_device_mark_responding
+ * @percent_complete: resync percent complete
+ */
+#define MPT_MAX_WARPDRIVE_PDS		8
+struct _raid_device {
+	struct list_head list;
+	struct scsi_target *starget;
+	struct scsi_device *sdev;
+	u64	wwid;
+	u16	handle;
+	int	id;
+	int	channel;
+	u8	volume_type;
+	u8	num_pds;
+	u8	responding;
+	u8	percent_complete;
+	u32	device_info;
+};
+
+/**
+ * struct _boot_device - boot device info
+ * @is_raid: flag to indicate whether this is volume
+ * @device: holds pointer for either struct _sas_device or
+ *     struct _raid_device
+ */
+struct _boot_device {
+	u8 is_raid;
+	void *device;
+};
+
+/**
+ * struct _sas_port - wide/narrow sas port information
+ * @port_list: list of ports belonging to expander
+ * @num_phys: number of phys belonging to this port
+ * @remote_identify: attached device identification
+ * @rphy: sas transport rphy object
+ * @port: sas transport wide/narrow port object
+ * @phy_list: _sas_phy list objects belonging to this port
+ */
+struct _sas_port {
+	struct list_head port_list;
+	u8	num_phys;
+	struct sas_identify remote_identify;
+	struct sas_rphy *rphy;
+	struct sas_port *port;
+	struct list_head phy_list;
+};
+
+/**
+ * struct _sas_phy - phy information
+ * @port_siblings: list of phys belonging to a port
+ * @identify: phy identification
+ * @remote_identify: attached device identification
+ * @phy: sas transport phy object
+ * @phy_id: unique phy id
+ * @handle: device handle for this phy
+ * @attached_handle: device handle for attached device
+ * @phy_belongs_to_port: port has been created for this phy
+ */
+struct _sas_phy {
+	struct list_head port_siblings;
+	struct sas_identify identify;
+	struct sas_identify remote_identify;
+	struct sas_phy *phy;
+	u8	phy_id;
+	u16	handle;
+	u16	attached_handle;
+	u8	phy_belongs_to_port;
+};
+
+/**
+ * struct _sas_node - sas_host/expander information
+ * @list: list of expanders
+ * @parent_dev: parent device class
+ * @num_phys: number phys belonging to this sas_host/expander
+ * @sas_address: sas address of this sas_host/expander
+ * @handle: handle for this sas_host/expander
+ * @sas_address_parent: sas address of parent expander or sas host
+ * @enclosure_handle: handle for this a member of an enclosure
+ * @device_info: bitwise defining capabilities of this sas_host/expander
+ * @responding: used in _scsih_expander_device_mark_responding
+ * @phy: a list of phys that make up this sas_host/expander
+ * @sas_port_list: list of ports attached to this sas_host/expander
+ */
+struct _sas_node {
+	struct list_head list;
+	struct device *parent_dev;
+	u8	num_phys;
+	u64	sas_address;
+	u16	handle;
+	u64	sas_address_parent;
+	u16	enclosure_handle;
+	u64	enclosure_logical_id;
+	u8	responding;
+	struct	_sas_phy *phy;
+	struct list_head sas_port_list;
+};
+
+/**
+ * enum reset_type - reset state
+ * @FORCE_BIG_HAMMER: issue diagnostic reset
+ * @SOFT_RESET: issue message_unit_reset, if fails to to big hammer
+ */
+enum reset_type {
+	FORCE_BIG_HAMMER,
+	SOFT_RESET,
+};
+
+/**
+ * struct chain_tracker - firmware chain tracker
+ * @chain_buffer: chain buffer
+ * @chain_buffer_dma: physical address
+ * @tracker_list: list of free request (ioc->free_chain_list)
+ */
+struct chain_tracker {
+	void *chain_buffer;
+	dma_addr_t chain_buffer_dma;
+	struct list_head tracker_list;
+};
+
+/**
+ * struct scsiio_tracker - scsi mf request tracker
+ * @smid: system message id
+ * @scmd: scsi request pointer
+ * @cb_idx: callback index
+ * @tracker_list: list of free request (ioc->free_list)
+ */
+struct scsiio_tracker {
+	u16	smid;
+	struct scsi_cmnd *scmd;
+	u8	cb_idx;
+	struct list_head chain_list;
+	struct list_head tracker_list;
+};
+
+/**
+ * struct request_tracker - firmware request tracker
+ * @smid: system message id
+ * @cb_idx: callback index
+ * @tracker_list: list of free request (ioc->free_list)
+ */
+struct request_tracker {
+	u16	smid;
+	u8	cb_idx;
+	struct list_head tracker_list;
+};
+
+/**
+ * struct _tr_list - target reset list
+ * @handle: device handle
+ * @state: state machine
+ */
+struct _tr_list {
+	struct list_head list;
+	u16	handle;
+	u16	state;
+};
+
+
+/**
+ * struct adapter_reply_queue - the reply queue struct
+ * @ioc: per adapter object
+ * @msix_index: msix index into vector table
+ * @vector: irq vector
+ * @reply_post_host_index: head index in the pool where FW completes IO
+ * @reply_post_free: reply post base virt address
+ * @name: the name registered to request_irq()
+ * @busy: isr is actively processing replies on another cpu
+ * @list: this list
+*/
+struct adapter_reply_queue {
+	struct MPT3SAS_ADAPTER	*ioc;
+	u8			msix_index;
+	unsigned int		vector;
+	u32			reply_post_host_index;
+	Mpi2ReplyDescriptorsUnion_t *reply_post_free;
+	char			name[MPT_NAME_LENGTH];
+	atomic_t		busy;
+	struct list_head	list;
+};
+
+typedef void (*MPT_ADD_SGE)(void *paddr, u32 flags_length, dma_addr_t dma_addr);
+
+/* SAS3.0 support */
+typedef int (*MPT_BUILD_SG_SCMD)(struct MPT3SAS_ADAPTER *ioc,
+		struct scsi_cmnd *scmd, u16 smid);
+typedef void (*MPT_BUILD_SG)(struct MPT3SAS_ADAPTER *ioc, void *psge,
+		dma_addr_t data_out_dma, size_t data_out_sz,
+		dma_addr_t data_in_dma, size_t data_in_sz);
+typedef void (*MPT_BUILD_ZERO_LEN_SGE)(struct MPT3SAS_ADAPTER *ioc,
+		void *paddr);
+
+
+
+/* IOC Facts and Port Facts converted from little endian to cpu */
+union mpi3_version_union {
+	MPI2_VERSION_STRUCT		Struct;
+	u32				Word;
+};
+
+struct mpt3sas_facts {
+	u16			MsgVersion;
+	u16			HeaderVersion;
+	u8			IOCNumber;
+	u8			VP_ID;
+	u8			VF_ID;
+	u16			IOCExceptions;
+	u16			IOCStatus;
+	u32			IOCLogInfo;
+	u8			MaxChainDepth;
+	u8			WhoInit;
+	u8			NumberOfPorts;
+	u8			MaxMSIxVectors;
+	u16			RequestCredit;
+	u16			ProductID;
+	u32			IOCCapabilities;
+	union mpi3_version_union	FWVersion;
+	u16			IOCRequestFrameSize;
+	u16			Reserved3;
+	u16			MaxInitiators;
+	u16			MaxTargets;
+	u16			MaxSasExpanders;
+	u16			MaxEnclosures;
+	u16			ProtocolFlags;
+	u16			HighPriorityCredit;
+	u16			MaxReplyDescriptorPostQueueDepth;
+	u8			ReplyFrameSize;
+	u8			MaxVolumes;
+	u16			MaxDevHandle;
+	u16			MaxPersistentEntries;
+	u16			MinDevHandle;
+};
+
+struct mpt3sas_port_facts {
+	u8			PortNumber;
+	u8			VP_ID;
+	u8			VF_ID;
+	u8			PortType;
+	u16			MaxPostedCmdBuffers;
+};
+
+/**
+ * enum mutex_type - task management mutex type
+ * @TM_MUTEX_OFF: mutex is not required becuase calling function is acquiring it
+ * @TM_MUTEX_ON: mutex is required
+ */
+enum mutex_type {
+	TM_MUTEX_OFF = 0,
+	TM_MUTEX_ON = 1,
+};
+
+typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc);
+/**
+ * struct MPT3SAS_ADAPTER - per adapter struct
+ * @list: ioc_list
+ * @shost: shost object
+ * @id: unique adapter id
+ * @cpu_count: number online cpus
+ * @name: generic ioc string
+ * @tmp_string: tmp string used for logging
+ * @pdev: pci pdev object
+ * @pio_chip: physical io register space
+ * @chip: memory mapped register space
+ * @chip_phys: physical addrss prior to mapping
+ * @logging_level: see mpt3sas_debug.h
+ * @fwfault_debug: debuging FW timeouts
+ * @ir_firmware: IR firmware present
+ * @bars: bitmask of BAR's that must be configured
+ * @mask_interrupts: ignore interrupt
+ * @fault_reset_work_q_name: fw fault work queue
+ * @fault_reset_work_q: ""
+ * @fault_reset_work: ""
+ * @firmware_event_name: fw event work queue
+ * @firmware_event_thread: ""
+ * @fw_event_lock:
+ * @fw_event_list: list of fw events
+ * @aen_event_read_flag: event log was read
+ * @broadcast_aen_busy: broadcast aen waiting to be serviced
+ * @shost_recovery: host reset in progress
+ * @ioc_reset_in_progress_lock:
+ * @ioc_link_reset_in_progress: phy/hard reset in progress
+ * @ignore_loginfos: ignore loginfos during task management
+ * @remove_host: flag for when driver unloads, to avoid sending dev resets
+ * @pci_error_recovery: flag to prevent ioc access until slot reset completes
+ * @wait_for_discovery_to_complete: flag set at driver load time when
+ *                                               waiting on reporting devices
+ * @is_driver_loading: flag set at driver load time
+ * @port_enable_failed: flag set when port enable has failed
+ * @start_scan: flag set from scan_start callback, cleared from _mpt3sas_fw_work
+ * @start_scan_failed: means port enable failed, return's the ioc_status
+ * @msix_enable: flag indicating msix is enabled
+ * @msix_vector_count: number msix vectors
+ * @cpu_msix_table: table for mapping cpus to msix index
+ * @cpu_msix_table_sz: table size
+ * @schedule_dead_ioc_flush_running_cmds: callback to flush pending commands
+ * @scsi_io_cb_idx: shost generated commands
+ * @tm_cb_idx: task management commands
+ * @scsih_cb_idx: scsih internal commands
+ * @transport_cb_idx: transport internal commands
+ * @ctl_cb_idx: clt internal commands
+ * @base_cb_idx: base internal commands
+ * @config_cb_idx: base internal commands
+ * @tm_tr_cb_idx : device removal target reset handshake
+ * @tm_tr_volume_cb_idx : volume removal target reset
+ * @base_cmds:
+ * @transport_cmds:
+ * @scsih_cmds:
+ * @tm_cmds:
+ * @ctl_cmds:
+ * @config_cmds:
+ * @base_add_sg_single: handler for either 32/64 bit sgl's
+ * @event_type: bits indicating which events to log
+ * @event_context: unique id for each logged event
+ * @event_log: event log pointer
+ * @event_masks: events that are masked
+ * @facts: static facts data
+ * @pfacts: static port facts data
+ * @manu_pg0: static manufacturing page 0
+ * @manu_pg10: static manufacturing page 10
+ * @manu_pg11: static manufacturing page 11
+ * @bios_pg2: static bios page 2
+ * @bios_pg3: static bios page 3
+ * @ioc_pg8: static ioc page 8
+ * @iounit_pg0: static iounit page 0
+ * @iounit_pg1: static iounit page 1
+ * @sas_hba: sas host object
+ * @sas_expander_list: expander object list
+ * @sas_node_lock:
+ * @sas_device_list: sas device object list
+ * @sas_device_init_list: sas device object list (used only at init time)
+ * @sas_device_lock:
+ * @io_missing_delay: time for IO completed by fw when PDR enabled
+ * @device_missing_delay: time for device missing by fw when PDR enabled
+ * @sas_id : used for setting volume target IDs
+ * @blocking_handles: bitmask used to identify which devices need blocking
+ * @pd_handles : bitmask for PD handles
+ * @pd_handles_sz : size of pd_handle bitmask
+ * @config_page_sz: config page size
+ * @config_page: reserve memory for config page payload
+ * @config_page_dma:
+ * @hba_queue_depth: hba request queue depth
+ * @sge_size: sg element size for either 32/64 bit
+ * @scsiio_depth: SCSI_IO queue depth
+ * @request_sz: per request frame size
+ * @request: pool of request frames
+ * @request_dma:
+ * @request_dma_sz:
+ * @scsi_lookup: firmware request tracker list
+ * @scsi_lookup_lock:
+ * @free_list: free list of request
+ * @pending_io_count:
+ * @reset_wq:
+ * @chain: pool of chains
+ * @chain_dma:
+ * @max_sges_in_main_message: number sg elements in main message
+ * @max_sges_in_chain_message: number sg elements per chain
+ * @chains_needed_per_io: max chains per io
+ * @chain_depth: total chains allocated
+ * @hi_priority_smid:
+ * @hi_priority:
+ * @hi_priority_dma:
+ * @hi_priority_depth:
+ * @hpr_lookup:
+ * @hpr_free_list:
+ * @internal_smid:
+ * @internal:
+ * @internal_dma:
+ * @internal_depth:
+ * @internal_lookup:
+ * @internal_free_list:
+ * @sense: pool of sense
+ * @sense_dma:
+ * @sense_dma_pool:
+ * @reply_depth: hba reply queue depth:
+ * @reply_sz: per reply frame size:
+ * @reply: pool of replys:
+ * @reply_dma:
+ * @reply_dma_pool:
+ * @reply_free_queue_depth: reply free depth
+ * @reply_free: pool for reply free queue (32 bit addr)
+ * @reply_free_dma:
+ * @reply_free_dma_pool:
+ * @reply_free_host_index: tail index in pool to insert free replys
+ * @reply_post_queue_depth: reply post queue depth
+ * @reply_post_free: pool for reply post (64bit descriptor)
+ * @reply_post_free_dma:
+ * @reply_queue_count: number of reply queue's
+ * @reply_queue_list: link list contaning the reply queue info
+ * @reply_post_host_index: head index in the pool where FW completes IO
+ * @delayed_tr_list: target reset link list
+ * @delayed_tr_volume_list: volume target reset link list
+ */
+struct MPT3SAS_ADAPTER {
+	struct list_head list;
+	struct Scsi_Host *shost;
+	u8		id;
+	int		cpu_count;
+	char		name[MPT_NAME_LENGTH];
+	char		tmp_string[MPT_STRING_LENGTH];
+	struct pci_dev	*pdev;
+	Mpi2SystemInterfaceRegs_t __iomem *chip;
+	resource_size_t	chip_phys;
+	int		logging_level;
+	int		fwfault_debug;
+	u8		ir_firmware;
+	int		bars;
+	u8		mask_interrupts;
+
+	/* fw fault handler */
+	char		fault_reset_work_q_name[20];
+	struct workqueue_struct *fault_reset_work_q;
+	struct delayed_work fault_reset_work;
+
+	/* fw event handler */
+	char		firmware_event_name[20];
+	struct workqueue_struct	*firmware_event_thread;
+	spinlock_t	fw_event_lock;
+	struct list_head fw_event_list;
+
+	 /* misc flags */
+	int		aen_event_read_flag;
+	u8		broadcast_aen_busy;
+	u16		broadcast_aen_pending;
+	u8		shost_recovery;
+
+	struct mutex	reset_in_progress_mutex;
+	spinlock_t	ioc_reset_in_progress_lock;
+	u8		ioc_link_reset_in_progress;
+	u8		ioc_reset_in_progress_status;
+
+	u8		ignore_loginfos;
+	u8		remove_host;
+	u8		pci_error_recovery;
+	u8		wait_for_discovery_to_complete;
+	u8		is_driver_loading;
+	u8		port_enable_failed;
+	u8		start_scan;
+	u16		start_scan_failed;
+
+	u8		msix_enable;
+	u16		msix_vector_count;
+	u8		*cpu_msix_table;
+	u16		cpu_msix_table_sz;
+	u32		ioc_reset_count;
+	MPT3SAS_FLUSH_RUNNING_CMDS schedule_dead_ioc_flush_running_cmds;
+
+	/* internal commands, callback index */
+	u8		scsi_io_cb_idx;
+	u8		tm_cb_idx;
+	u8		transport_cb_idx;
+	u8		scsih_cb_idx;
+	u8		ctl_cb_idx;
+	u8		base_cb_idx;
+	u8		port_enable_cb_idx;
+	u8		config_cb_idx;
+	u8		tm_tr_cb_idx;
+	u8		tm_tr_volume_cb_idx;
+	u8		tm_sas_control_cb_idx;
+	struct _internal_cmd base_cmds;
+	struct _internal_cmd port_enable_cmds;
+	struct _internal_cmd transport_cmds;
+	struct _internal_cmd scsih_cmds;
+	struct _internal_cmd tm_cmds;
+	struct _internal_cmd ctl_cmds;
+	struct _internal_cmd config_cmds;
+
+	MPT_ADD_SGE	base_add_sg_single;
+
+	/* function ptr for either IEEE or MPI sg elements */
+	MPT_BUILD_SG_SCMD build_sg_scmd;
+	MPT_BUILD_SG    build_sg;
+	MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge;
+	u8              mpi25;
+	u16             sge_size_ieee;
+
+	/* function ptr for MPI sg elements only */
+	MPT_BUILD_SG    build_sg_mpi;
+	MPT_BUILD_ZERO_LEN_SGE build_zero_len_sge_mpi;
+
+	/* event log */
+	u32		event_type[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
+	u32		event_context;
+	void		*event_log;
+	u32		event_masks[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
+
+	/* static config pages */
+	struct mpt3sas_facts facts;
+	struct mpt3sas_port_facts *pfacts;
+	Mpi2ManufacturingPage0_t manu_pg0;
+	struct Mpi2ManufacturingPage10_t manu_pg10;
+	struct Mpi2ManufacturingPage11_t manu_pg11;
+	Mpi2BiosPage2_t	bios_pg2;
+	Mpi2BiosPage3_t	bios_pg3;
+	Mpi2IOCPage8_t ioc_pg8;
+	Mpi2IOUnitPage0_t iounit_pg0;
+	Mpi2IOUnitPage1_t iounit_pg1;
+
+	struct _boot_device req_boot_device;
+	struct _boot_device req_alt_boot_device;
+	struct _boot_device current_boot_device;
+
+	/* sas hba, expander, and device list */
+	struct _sas_node sas_hba;
+	struct list_head sas_expander_list;
+	spinlock_t	sas_node_lock;
+	struct list_head sas_device_list;
+	struct list_head sas_device_init_list;
+	spinlock_t	sas_device_lock;
+	struct list_head raid_device_list;
+	spinlock_t	raid_device_lock;
+	u8		io_missing_delay;
+	u16		device_missing_delay;
+	int		sas_id;
+
+	void		*blocking_handles;
+	void		*pd_handles;
+	u16		pd_handles_sz;
+
+	/* config page */
+	u16		config_page_sz;
+	void		*config_page;
+	dma_addr_t	config_page_dma;
+
+	/* scsiio request */
+	u16		hba_queue_depth;
+	u16		sge_size;
+	u16		scsiio_depth;
+	u16		request_sz;
+	u8		*request;
+	dma_addr_t	request_dma;
+	u32		request_dma_sz;
+	struct scsiio_tracker *scsi_lookup;
+	ulong		scsi_lookup_pages;
+	spinlock_t	scsi_lookup_lock;
+	struct list_head free_list;
+	int		pending_io_count;
+	wait_queue_head_t reset_wq;
+
+	/* chain */
+	struct chain_tracker *chain_lookup;
+	struct list_head free_chain_list;
+	struct dma_pool *chain_dma_pool;
+	ulong		chain_pages;
+	u16		max_sges_in_main_message;
+	u16		max_sges_in_chain_message;
+	u16		chains_needed_per_io;
+	u32		chain_depth;
+
+	/* hi-priority queue */
+	u16		hi_priority_smid;
+	u8		*hi_priority;
+	dma_addr_t	hi_priority_dma;
+	u16		hi_priority_depth;
+	struct request_tracker *hpr_lookup;
+	struct list_head hpr_free_list;
+
+	/* internal queue */
+	u16		internal_smid;
+	u8		*internal;
+	dma_addr_t	internal_dma;
+	u16		internal_depth;
+	struct request_tracker *internal_lookup;
+	struct list_head internal_free_list;
+
+	/* sense */
+	u8		*sense;
+	dma_addr_t	sense_dma;
+	struct dma_pool *sense_dma_pool;
+
+	/* reply */
+	u16		reply_sz;
+	u8		*reply;
+	dma_addr_t	reply_dma;
+	u32		reply_dma_max_address;
+	u32		reply_dma_min_address;
+	struct dma_pool *reply_dma_pool;
+
+	/* reply free queue */
+	u16		reply_free_queue_depth;
+	__le32		*reply_free;
+	dma_addr_t	reply_free_dma;
+	struct dma_pool *reply_free_dma_pool;
+	u32		reply_free_host_index;
+
+	/* reply post queue */
+	u16		reply_post_queue_depth;
+	Mpi2ReplyDescriptorsUnion_t *reply_post_free;
+	dma_addr_t	reply_post_free_dma;
+	struct dma_pool *reply_post_free_dma_pool;
+	u8		reply_queue_count;
+	struct list_head reply_queue_list;
+
+	struct list_head delayed_tr_list;
+	struct list_head delayed_tr_volume_list;
+
+	/* diag buffer support */
+	u8		*diag_buffer[MPI2_DIAG_BUF_TYPE_COUNT];
+	u32		diag_buffer_sz[MPI2_DIAG_BUF_TYPE_COUNT];
+	dma_addr_t	diag_buffer_dma[MPI2_DIAG_BUF_TYPE_COUNT];
+	u8		diag_buffer_status[MPI2_DIAG_BUF_TYPE_COUNT];
+	u32		unique_id[MPI2_DIAG_BUF_TYPE_COUNT];
+	u32		product_specific[MPI2_DIAG_BUF_TYPE_COUNT][23];
+	u32		diagnostic_flags[MPI2_DIAG_BUF_TYPE_COUNT];
+	u32		ring_buffer_offset;
+	u32		ring_buffer_sz;
+	spinlock_t	diag_trigger_lock;
+	u8		diag_trigger_active;
+	struct SL_WH_MASTER_TRIGGER_T diag_trigger_master;
+	struct SL_WH_EVENT_TRIGGERS_T diag_trigger_event;
+	struct SL_WH_SCSI_TRIGGERS_T diag_trigger_scsi;
+	struct SL_WH_MPI_TRIGGERS_T diag_trigger_mpi;
+};
+
+typedef u8 (*MPT_CALLBACK)(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply);
+
+
+/* base shared API */
+extern struct list_head mpt3sas_ioc_list;
+void mpt3sas_base_start_watchdog(struct MPT3SAS_ADAPTER *ioc);
+void mpt3sas_base_stop_watchdog(struct MPT3SAS_ADAPTER *ioc);
+
+int mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc);
+void mpt3sas_base_detach(struct MPT3SAS_ADAPTER *ioc);
+int mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc);
+void mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc);
+int mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc, int sleep_flag,
+	enum reset_type type);
+
+void *mpt3sas_base_get_msg_frame(struct MPT3SAS_ADAPTER *ioc, u16 smid);
+void *mpt3sas_base_get_sense_buffer(struct MPT3SAS_ADAPTER *ioc, u16 smid);
+__le32 mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc,
+	u16 smid);
+void mpt3sas_base_flush_reply_queues(struct MPT3SAS_ADAPTER *ioc);
+
+/* hi-priority queue */
+u16 mpt3sas_base_get_smid_hpr(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx);
+u16 mpt3sas_base_get_smid_scsiio(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx,
+	struct scsi_cmnd *scmd);
+
+u16 mpt3sas_base_get_smid(struct MPT3SAS_ADAPTER *ioc, u8 cb_idx);
+void mpt3sas_base_free_smid(struct MPT3SAS_ADAPTER *ioc, u16 smid);
+void mpt3sas_base_put_smid_scsi_io(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	u16 handle);
+void mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	u16 handle);
+void mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid);
+void mpt3sas_base_put_smid_default(struct MPT3SAS_ADAPTER *ioc, u16 smid);
+void mpt3sas_base_initialize_callback_handler(void);
+u8 mpt3sas_base_register_callback_handler(MPT_CALLBACK cb_func);
+void mpt3sas_base_release_callback_handler(u8 cb_idx);
+
+u8 mpt3sas_base_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply);
+u8 mpt3sas_port_enable_done(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	u8 msix_index, u32 reply);
+void *mpt3sas_base_get_reply_virt_addr(struct MPT3SAS_ADAPTER *ioc,
+	u32 phys_addr);
+
+u32 mpt3sas_base_get_iocstate(struct MPT3SAS_ADAPTER *ioc, int cooked);
+
+void mpt3sas_base_fault_info(struct MPT3SAS_ADAPTER *ioc , u16 fault_code);
+int mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2SasIoUnitControlReply_t *mpi_reply,
+	Mpi2SasIoUnitControlRequest_t *mpi_request);
+int mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2SepReply_t *mpi_reply, Mpi2SepRequest_t *mpi_request);
+
+void mpt3sas_base_validate_event_type(struct MPT3SAS_ADAPTER *ioc,
+	u32 *event_type);
+
+void mpt3sas_halt_firmware(struct MPT3SAS_ADAPTER *ioc);
+
+void mpt3sas_base_update_missing_delay(struct MPT3SAS_ADAPTER *ioc,
+	u16 device_missing_delay, u8 io_missing_delay);
+
+int mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc);
+
+
+/* scsih shared API */
+u8 mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
+	u32 reply);
+void mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase);
+
+int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	uint channel, uint id, uint lun, u8 type, u16 smid_task,
+	ulong timeout, unsigned long serial_number,  enum mutex_type m_type);
+void mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
+void mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle);
+void mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
+void mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address);
+
+struct _sas_node *mpt3sas_scsih_expander_find_by_handle(
+	struct MPT3SAS_ADAPTER *ioc, u16 handle);
+struct _sas_node *mpt3sas_scsih_expander_find_by_sas_address(
+	struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
+struct _sas_device *mpt3sas_scsih_sas_device_find_by_sas_address(
+	struct MPT3SAS_ADAPTER *ioc, u64 sas_address);
+
+void mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc);
+
+/* config shared API */
+u8 mpt3sas_config_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply);
+int mpt3sas_config_get_number_hba_phys(struct MPT3SAS_ADAPTER *ioc,
+	u8 *num_phys);
+int mpt3sas_config_get_manufacturing_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page);
+int mpt3sas_config_get_manufacturing_pg7(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage7_t *config_page,
+	u16 sz);
+int mpt3sas_config_get_manufacturing_pg10(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply,
+	struct Mpi2ManufacturingPage10_t *config_page);
+
+int mpt3sas_config_get_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply,
+	struct Mpi2ManufacturingPage11_t  *config_page);
+int mpt3sas_config_set_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply,
+	struct Mpi2ManufacturingPage11_t *config_page);
+
+int mpt3sas_config_get_bios_pg2(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2BiosPage2_t *config_page);
+int mpt3sas_config_get_bios_pg3(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2BiosPage3_t *config_page);
+int mpt3sas_config_get_iounit_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2IOUnitPage0_t *config_page);
+int mpt3sas_config_get_sas_device_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage0_t *config_page,
+	u32 form, u32 handle);
+int mpt3sas_config_get_sas_device_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage1_t *config_page,
+	u32 form, u32 handle);
+int mpt3sas_config_get_sas_iounit_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage0_t *config_page,
+	u16 sz);
+int mpt3sas_config_get_iounit_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2IOUnitPage1_t *config_page);
+int mpt3sas_config_set_iounit_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2IOUnitPage1_t *config_page);
+int mpt3sas_config_get_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
+	u16 sz);
+int mpt3sas_config_set_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
+	u16 sz);
+int mpt3sas_config_get_ioc_pg8(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2IOCPage8_t *config_page);
+int mpt3sas_config_get_expander_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ExpanderPage0_t *config_page,
+	u32 form, u32 handle);
+int mpt3sas_config_get_expander_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ExpanderPage1_t *config_page,
+	u32 phy_number, u16 handle);
+int mpt3sas_config_get_enclosure_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasEnclosurePage0_t *config_page,
+	u32 form, u32 handle);
+int mpt3sas_config_get_phy_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2SasPhyPage0_t *config_page, u32 phy_number);
+int mpt3sas_config_get_phy_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2SasPhyPage1_t *config_page, u32 phy_number);
+int mpt3sas_config_get_raid_volume_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
+	u32 handle);
+int mpt3sas_config_get_number_pds(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	u8 *num_pds);
+int mpt3sas_config_get_raid_volume_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 form,
+	u32 handle, u16 sz);
+int mpt3sas_config_get_phys_disk_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page,
+	u32 form, u32 form_specific);
+int mpt3sas_config_get_volume_handle(struct MPT3SAS_ADAPTER *ioc, u16 pd_handle,
+	u16 *volume_handle);
+int mpt3sas_config_get_volume_wwid(struct MPT3SAS_ADAPTER *ioc,
+	u16 volume_handle, u64 *wwid);
+
+/* ctl shared API */
+extern struct device_attribute *mpt3sas_host_attrs[];
+extern struct device_attribute *mpt3sas_dev_attrs[];
+void mpt3sas_ctl_init(void);
+void mpt3sas_ctl_exit(void);
+u8 mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply);
+void mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase);
+u8 mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc,
+	u8 msix_index, u32 reply);
+void mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventNotificationReply_t *mpi_reply);
+
+void mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc,
+	u8 bits_to_regsiter);
+int mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
+	u8 *issue_reset);
+
+/* transport shared API */
+u8 mpt3sas_transport_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply);
+struct _sas_port *mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc,
+	u16 handle, u64 sas_address);
+void mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
+	u64 sas_address_parent);
+int mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy
+	*mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev);
+int mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_phy *mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1,
+	struct device *parent_dev);
+void mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address, u16 handle, u8 phy_number, u8 link_rate);
+extern struct sas_function_template mpt3sas_transport_functions;
+extern struct scsi_transport_template *mpt3sas_transport_template;
+extern int scsi_internal_device_block(struct scsi_device *sdev);
+extern int scsi_internal_device_unblock(struct scsi_device *sdev,
+				enum scsi_device_state new_state);
+/* trigger data externs */
+void mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
+	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data);
+void mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,
+	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data);
+void mpt3sas_trigger_master(struct MPT3SAS_ADAPTER *ioc,
+	u32 tigger_bitmask);
+void mpt3sas_trigger_event(struct MPT3SAS_ADAPTER *ioc, u16 event,
+	u16 log_entry_qualifier);
+void mpt3sas_trigger_scsi(struct MPT3SAS_ADAPTER *ioc, u8 sense_key,
+	u8 asc, u8 ascq);
+void mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status,
+	u32 loginfo);
+#endif /* MPT3SAS_BASE_H_INCLUDED */
diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c
new file mode 100644
index 000000000000..ce7e59b2fc08
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_config.c
@@ -0,0 +1,1650 @@
+/*
+ * This module provides common API for accessing firmware configuration pages
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_base.c
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/blkdev.h>
+#include <linux/sched.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+
+#include "mpt3sas_base.h"
+
+/* local definitions */
+
+/* Timeout for config page request (in seconds) */
+#define MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT 15
+
+/* Common sgl flags for READING a config page. */
+#define MPT3_CONFIG_COMMON_SGLFLAGS ((MPI2_SGE_FLAGS_SIMPLE_ELEMENT | \
+	MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER \
+	| MPI2_SGE_FLAGS_END_OF_LIST) << MPI2_SGE_FLAGS_SHIFT)
+
+/* Common sgl flags for WRITING a config page. */
+#define MPT3_CONFIG_COMMON_WRITE_SGLFLAGS ((MPI2_SGE_FLAGS_SIMPLE_ELEMENT | \
+	MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER \
+	| MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC) \
+	<< MPI2_SGE_FLAGS_SHIFT)
+
+/**
+ * struct config_request - obtain dma memory via routine
+ * @sz: size
+ * @page: virt pointer
+ * @page_dma: phys pointer
+ *
+ */
+struct config_request {
+	u16			sz;
+	void			*page;
+	dma_addr_t		page_dma;
+};
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _config_display_some_debug - debug routine
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @calling_function_name: string pass from calling function
+ * @mpi_reply: reply message frame
+ * Context: none.
+ *
+ * Function for displaying debug info helpful when debugging issues
+ * in this module.
+ */
+static void
+_config_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
+{
+	Mpi2ConfigRequest_t *mpi_request;
+	char *desc = NULL;
+
+	if (!(ioc->logging_level & MPT_DEBUG_CONFIG))
+		return;
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	switch (mpi_request->Header.PageType & MPI2_CONFIG_PAGETYPE_MASK) {
+	case MPI2_CONFIG_PAGETYPE_IO_UNIT:
+		desc = "io_unit";
+		break;
+	case MPI2_CONFIG_PAGETYPE_IOC:
+		desc = "ioc";
+		break;
+	case MPI2_CONFIG_PAGETYPE_BIOS:
+		desc = "bios";
+		break;
+	case MPI2_CONFIG_PAGETYPE_RAID_VOLUME:
+		desc = "raid_volume";
+		break;
+	case MPI2_CONFIG_PAGETYPE_MANUFACTURING:
+		desc = "manufaucturing";
+		break;
+	case MPI2_CONFIG_PAGETYPE_RAID_PHYSDISK:
+		desc = "physdisk";
+		break;
+	case MPI2_CONFIG_PAGETYPE_EXTENDED:
+		switch (mpi_request->ExtPageType) {
+		case MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT:
+			desc = "sas_io_unit";
+			break;
+		case MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER:
+			desc = "sas_expander";
+			break;
+		case MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE:
+			desc = "sas_device";
+			break;
+		case MPI2_CONFIG_EXTPAGETYPE_SAS_PHY:
+			desc = "sas_phy";
+			break;
+		case MPI2_CONFIG_EXTPAGETYPE_LOG:
+			desc = "log";
+			break;
+		case MPI2_CONFIG_EXTPAGETYPE_ENCLOSURE:
+			desc = "enclosure";
+			break;
+		case MPI2_CONFIG_EXTPAGETYPE_RAID_CONFIG:
+			desc = "raid_config";
+			break;
+		case MPI2_CONFIG_EXTPAGETYPE_DRIVER_MAPPING:
+			desc = "driver_mappping";
+			break;
+		}
+		break;
+	}
+
+	if (!desc)
+		return;
+
+	pr_info(MPT3SAS_FMT
+		"%s: %s(%d), action(%d), form(0x%08x), smid(%d)\n",
+		ioc->name, calling_function_name, desc,
+	    mpi_request->Header.PageNumber, mpi_request->Action,
+	    le32_to_cpu(mpi_request->PageAddress), smid);
+
+	if (!mpi_reply)
+		return;
+
+	if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
+		pr_info(MPT3SAS_FMT
+		    "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
+		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
+		    le32_to_cpu(mpi_reply->IOCLogInfo));
+}
+#endif
+
+/**
+ * _config_alloc_config_dma_memory - obtain physical memory
+ * @ioc: per adapter object
+ * @mem: struct config_request
+ *
+ * A wrapper for obtaining dma-able memory for config page request.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_config_alloc_config_dma_memory(struct MPT3SAS_ADAPTER *ioc,
+	struct config_request *mem)
+{
+	int r = 0;
+
+	if (mem->sz > ioc->config_page_sz) {
+		mem->page = dma_alloc_coherent(&ioc->pdev->dev, mem->sz,
+		    &mem->page_dma, GFP_KERNEL);
+		if (!mem->page) {
+			pr_err(MPT3SAS_FMT
+				"%s: dma_alloc_coherent failed asking for (%d) bytes!!\n",
+			    ioc->name, __func__, mem->sz);
+			r = -ENOMEM;
+		}
+	} else { /* use tmp buffer if less than 512 bytes */
+		mem->page = ioc->config_page;
+		mem->page_dma = ioc->config_page_dma;
+	}
+	return r;
+}
+
+/**
+ * _config_free_config_dma_memory - wrapper to free the memory
+ * @ioc: per adapter object
+ * @mem: struct config_request
+ *
+ * A wrapper to free dma-able memory when using _config_alloc_config_dma_memory.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static void
+_config_free_config_dma_memory(struct MPT3SAS_ADAPTER *ioc,
+	struct config_request *mem)
+{
+	if (mem->sz > ioc->config_page_sz)
+		dma_free_coherent(&ioc->pdev->dev, mem->sz, mem->page,
+		    mem->page_dma);
+}
+
+/**
+ * mpt3sas_config_done - config page completion routine
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: none.
+ *
+ * The callback handler when using _config_request.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_config_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+
+	if (ioc->config_cmds.status == MPT3_CMD_NOT_USED)
+		return 1;
+	if (ioc->config_cmds.smid != smid)
+		return 1;
+	ioc->config_cmds.status |= MPT3_CMD_COMPLETE;
+	mpi_reply =  mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (mpi_reply) {
+		ioc->config_cmds.status |= MPT3_CMD_REPLY_VALID;
+		memcpy(ioc->config_cmds.reply, mpi_reply,
+		    mpi_reply->MsgLength*4);
+	}
+	ioc->config_cmds.status &= ~MPT3_CMD_PENDING;
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	_config_display_some_debug(ioc, smid, "config_done", mpi_reply);
+#endif
+	ioc->config_cmds.smid = USHRT_MAX;
+	complete(&ioc->config_cmds.done);
+	return 1;
+}
+
+/**
+ * _config_request - main routine for sending config page requests
+ * @ioc: per adapter object
+ * @mpi_request: request message frame
+ * @mpi_reply: reply mf payload returned from firmware
+ * @timeout: timeout in seconds
+ * @config_page: contents of the config page
+ * @config_page_sz: size of config page
+ * Context: sleep
+ *
+ * A generic API for config page requests to firmware.
+ *
+ * The ioc->config_cmds.status flag should be MPT3_CMD_NOT_USED before calling
+ * this API.
+ *
+ * The callback index is set inside `ioc->config_cb_idx.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
+	*mpi_request, Mpi2ConfigReply_t *mpi_reply, int timeout,
+	void *config_page, u16 config_page_sz)
+{
+	u16 smid;
+	u32 ioc_state;
+	unsigned long timeleft;
+	Mpi2ConfigRequest_t *config_request;
+	int r;
+	u8 retry_count, issue_host_reset = 0;
+	u16 wait_state_count;
+	struct config_request mem;
+	u32 ioc_status = UINT_MAX;
+
+	mutex_lock(&ioc->config_cmds.mutex);
+	if (ioc->config_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: config_cmd in use\n",
+		    ioc->name, __func__);
+		mutex_unlock(&ioc->config_cmds.mutex);
+		return -EAGAIN;
+	}
+
+	retry_count = 0;
+	memset(&mem, 0, sizeof(struct config_request));
+
+	mpi_request->VF_ID = 0; /* TODO */
+	mpi_request->VP_ID = 0;
+
+	if (config_page) {
+		mpi_request->Header.PageVersion = mpi_reply->Header.PageVersion;
+		mpi_request->Header.PageNumber = mpi_reply->Header.PageNumber;
+		mpi_request->Header.PageType = mpi_reply->Header.PageType;
+		mpi_request->Header.PageLength = mpi_reply->Header.PageLength;
+		mpi_request->ExtPageLength = mpi_reply->ExtPageLength;
+		mpi_request->ExtPageType = mpi_reply->ExtPageType;
+		if (mpi_request->Header.PageLength)
+			mem.sz = mpi_request->Header.PageLength * 4;
+		else
+			mem.sz = le16_to_cpu(mpi_reply->ExtPageLength) * 4;
+		r = _config_alloc_config_dma_memory(ioc, &mem);
+		if (r != 0)
+			goto out;
+		if (mpi_request->Action ==
+		    MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT ||
+		    mpi_request->Action ==
+		    MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM) {
+			ioc->base_add_sg_single(&mpi_request->PageBufferSGE,
+			    MPT3_CONFIG_COMMON_WRITE_SGLFLAGS | mem.sz,
+			    mem.page_dma);
+			memcpy(mem.page, config_page, min_t(u16, mem.sz,
+			    config_page_sz));
+		} else {
+			memset(config_page, 0, config_page_sz);
+			ioc->base_add_sg_single(&mpi_request->PageBufferSGE,
+			    MPT3_CONFIG_COMMON_SGLFLAGS | mem.sz, mem.page_dma);
+			memset(mem.page, 0, min_t(u16, mem.sz, config_page_sz));
+		}
+	}
+
+ retry_config:
+	if (retry_count) {
+		if (retry_count > 2) { /* attempt only 2 retries */
+			r = -EFAULT;
+			goto free_mem;
+		}
+		pr_info(MPT3SAS_FMT "%s: attempting retry (%d)\n",
+		    ioc->name, __func__, retry_count);
+	}
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			ioc->config_cmds.status = MPT3_CMD_NOT_USED;
+			r = -EFAULT;
+			goto free_mem;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name, __func__, wait_state_count);
+	}
+	if (wait_state_count)
+		pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
+		    ioc->name, __func__);
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->config_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		ioc->config_cmds.status = MPT3_CMD_NOT_USED;
+		r = -EAGAIN;
+		goto free_mem;
+	}
+
+	r = 0;
+	memset(mpi_reply, 0, sizeof(Mpi2ConfigReply_t));
+	ioc->config_cmds.status = MPT3_CMD_PENDING;
+	config_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->config_cmds.smid = smid;
+	memcpy(config_request, mpi_request, sizeof(Mpi2ConfigRequest_t));
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	_config_display_some_debug(ioc, smid, "config_request", NULL);
+#endif
+	init_completion(&ioc->config_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->config_cmds.done,
+	    timeout*HZ);
+	if (!(ioc->config_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2ConfigRequest_t)/4);
+		retry_count++;
+		if (ioc->config_cmds.smid == smid)
+			mpt3sas_base_free_smid(ioc, smid);
+		if ((ioc->shost_recovery) || (ioc->config_cmds.status &
+		    MPT3_CMD_RESET) || ioc->pci_error_recovery)
+			goto retry_config;
+		issue_host_reset = 1;
+		r = -EFAULT;
+		goto free_mem;
+	}
+
+	if (ioc->config_cmds.status & MPT3_CMD_REPLY_VALID) {
+		memcpy(mpi_reply, ioc->config_cmds.reply,
+		    sizeof(Mpi2ConfigReply_t));
+
+		/* Reply Frame Sanity Checks to workaround FW issues */
+		if ((mpi_request->Header.PageType & 0xF) !=
+		    (mpi_reply->Header.PageType & 0xF)) {
+			_debug_dump_mf(mpi_request, ioc->request_sz/4);
+			_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+			panic(KERN_WARNING MPT3SAS_FMT "%s: Firmware BUG:" \
+			    " mpi_reply mismatch: Requested PageType(0x%02x)" \
+			    " Reply PageType(0x%02x)\n", \
+			    ioc->name, __func__,
+			    (mpi_request->Header.PageType & 0xF),
+			    (mpi_reply->Header.PageType & 0xF));
+		}
+
+		if (((mpi_request->Header.PageType & 0xF) ==
+		    MPI2_CONFIG_PAGETYPE_EXTENDED) &&
+		    mpi_request->ExtPageType != mpi_reply->ExtPageType) {
+			_debug_dump_mf(mpi_request, ioc->request_sz/4);
+			_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+			panic(KERN_WARNING MPT3SAS_FMT "%s: Firmware BUG:" \
+			    " mpi_reply mismatch: Requested ExtPageType(0x%02x)"
+			    " Reply ExtPageType(0x%02x)\n",
+			    ioc->name, __func__, mpi_request->ExtPageType,
+			    mpi_reply->ExtPageType);
+		}
+		ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
+		    & MPI2_IOCSTATUS_MASK;
+	}
+
+	if (retry_count)
+		pr_info(MPT3SAS_FMT "%s: retry (%d) completed!!\n", \
+		    ioc->name, __func__, retry_count);
+
+	if ((ioc_status == MPI2_IOCSTATUS_SUCCESS) &&
+	    config_page && mpi_request->Action ==
+	    MPI2_CONFIG_ACTION_PAGE_READ_CURRENT) {
+		u8 *p = (u8 *)mem.page;
+
+		/* Config Page Sanity Checks to workaround FW issues */
+		if (p) {
+			if ((mpi_request->Header.PageType & 0xF) !=
+			    (p[3] & 0xF)) {
+				_debug_dump_mf(mpi_request, ioc->request_sz/4);
+				_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+				_debug_dump_config(p, min_t(u16, mem.sz,
+				    config_page_sz)/4);
+				panic(KERN_WARNING MPT3SAS_FMT
+					"%s: Firmware BUG:" \
+				    " config page mismatch:"
+				    " Requested PageType(0x%02x)"
+				    " Reply PageType(0x%02x)\n",
+				    ioc->name, __func__,
+				    (mpi_request->Header.PageType & 0xF),
+				    (p[3] & 0xF));
+			}
+
+			if (((mpi_request->Header.PageType & 0xF) ==
+			    MPI2_CONFIG_PAGETYPE_EXTENDED) &&
+			    (mpi_request->ExtPageType != p[6])) {
+				_debug_dump_mf(mpi_request, ioc->request_sz/4);
+				_debug_dump_reply(mpi_reply, ioc->request_sz/4);
+				_debug_dump_config(p, min_t(u16, mem.sz,
+				    config_page_sz)/4);
+				panic(KERN_WARNING MPT3SAS_FMT
+					"%s: Firmware BUG:" \
+				    " config page mismatch:"
+				    " Requested ExtPageType(0x%02x)"
+				    " Reply ExtPageType(0x%02x)\n",
+				    ioc->name, __func__,
+				    mpi_request->ExtPageType, p[6]);
+			}
+		}
+		memcpy(config_page, mem.page, min_t(u16, mem.sz,
+		    config_page_sz));
+	}
+
+ free_mem:
+	if (config_page)
+		_config_free_config_dma_memory(ioc, &mem);
+ out:
+	ioc->config_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_unlock(&ioc->config_cmds.mutex);
+
+	if (issue_host_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_manufacturing_pg0 - obtain manufacturing page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_manufacturing_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage0_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_manufacturing_pg7 - obtain manufacturing page 7
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz: size of buffer passed in config_page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_manufacturing_pg7(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2ManufacturingPage7_t *config_page,
+	u16 sz)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
+	mpi_request.Header.PageNumber = 7;
+	mpi_request.Header.PageVersion = MPI2_MANUFACTURING7_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sz);
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_manufacturing_pg10 - obtain manufacturing page 10
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_manufacturing_pg10(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply,
+	struct Mpi2ManufacturingPage10_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
+	mpi_request.Header.PageNumber = 10;
+	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_manufacturing_pg11 - obtain manufacturing page 11
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply,
+	struct Mpi2ManufacturingPage11_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
+	mpi_request.Header.PageNumber = 11;
+	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_set_manufacturing_pg11 - set manufacturing page 11
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_set_manufacturing_pg11(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply,
+	struct Mpi2ManufacturingPage11_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_MANUFACTURING;
+	mpi_request.Header.PageNumber = 11;
+	mpi_request.Header.PageVersion = MPI2_MANUFACTURING0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_bios_pg2 - obtain bios page 2
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_bios_pg2(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2BiosPage2_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_BIOS;
+	mpi_request.Header.PageNumber = 2;
+	mpi_request.Header.PageVersion = MPI2_BIOSPAGE2_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_bios_pg3 - obtain bios page 3
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_bios_pg3(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2BiosPage3_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_BIOS;
+	mpi_request.Header.PageNumber = 3;
+	mpi_request.Header.PageVersion = MPI2_BIOSPAGE3_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_iounit_pg0 - obtain iounit page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_iounit_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage0_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_iounit_pg1 - obtain iounit page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage1_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_set_iounit_pg1 - set iounit page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_set_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2IOUnitPage1_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IO_UNIT;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_IOUNITPAGE1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_ioc_pg8 - obtain ioc page 8
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_ioc_pg8(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2IOCPage8_t *config_page)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_IOC;
+	mpi_request.Header.PageNumber = 8;
+	mpi_request.Header.PageVersion = MPI2_IOCPAGE8_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_sas_device_pg0 - obtain sas device page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @form: GET_NEXT_HANDLE or HANDLE
+ * @handle: device handle
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_sas_device_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage0_t *config_page,
+	u32 form, u32 handle)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE;
+	mpi_request.Header.PageVersion = MPI2_SASDEVICE0_PAGEVERSION;
+	mpi_request.Header.PageNumber = 0;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress = cpu_to_le32(form | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_sas_device_pg1 - obtain sas device page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @form: GET_NEXT_HANDLE or HANDLE
+ * @handle: device handle
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_sas_device_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasDevicePage1_t *config_page,
+	u32 form, u32 handle)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_DEVICE;
+	mpi_request.Header.PageVersion = MPI2_SASDEVICE1_PAGEVERSION;
+	mpi_request.Header.PageNumber = 1;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress = cpu_to_le32(form | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_number_hba_phys - obtain number of phys on the host
+ * @ioc: per adapter object
+ * @num_phys: pointer returned with the number of phys
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_number_hba_phys(struct MPT3SAS_ADAPTER *ioc, u8 *num_phys)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+	u16 ioc_status;
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasIOUnitPage0_t config_page;
+
+	*num_phys = 0;
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, &mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, &mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, &config_page,
+	    sizeof(Mpi2SasIOUnitPage0_t));
+	if (!r) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_SUCCESS)
+			*num_phys = config_page.NumPhys;
+	}
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_sas_iounit_pg0 - obtain sas iounit page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz: size of buffer passed in config_page
+ * Context: sleep.
+ *
+ * Calling function should call config_get_number_hba_phys prior to
+ * this function, so enough memory is allocated for config_page.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_sas_iounit_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage0_t *config_page,
+	u16 sz)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_sas_iounit_pg1 - obtain sas iounit page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz: size of buffer passed in config_page
+ * Context: sleep.
+ *
+ * Calling function should call config_get_number_hba_phys prior to
+ * this function, so enough memory is allocated for config_page.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
+	u16 sz)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_set_sas_iounit_pg1 - send sas iounit page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz: size of buffer passed in config_page
+ * Context: sleep.
+ *
+ * Calling function should call config_get_number_hba_phys prior to
+ * this function, so enough memory is allocated for config_page.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_set_sas_iounit_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2SasIOUnitPage1_t *config_page,
+	u16 sz)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+	_config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_expander_pg0 - obtain expander page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @form: GET_NEXT_HANDLE or HANDLE
+ * @handle: expander handle
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_expander_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2ExpanderPage0_t *config_page, u32 form, u32 handle)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_SASEXPANDER0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress = cpu_to_le32(form | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_expander_pg1 - obtain expander page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @phy_number: phy number
+ * @handle: expander handle
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_expander_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2ExpanderPage1_t *config_page, u32 phy_number,
+	u16 handle)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_EXPANDER;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_SASEXPANDER1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress =
+	    cpu_to_le32(MPI2_SAS_EXPAND_PGAD_FORM_HNDL_PHY_NUM |
+	    (phy_number << MPI2_SAS_EXPAND_PGAD_PHYNUM_SHIFT) | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_enclosure_pg0 - obtain enclosure page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @form: GET_NEXT_HANDLE or HANDLE
+ * @handle: expander handle
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_enclosure_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2SasEnclosurePage0_t *config_page, u32 form, u32 handle)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_ENCLOSURE;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_SASENCLOSURE0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress = cpu_to_le32(form | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_phy_pg0 - obtain phy page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @phy_number: phy number
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_phy_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2SasPhyPage0_t *config_page, u32 phy_number)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_PHY;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_SASPHY0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress =
+	    cpu_to_le32(MPI2_SAS_PHY_PGAD_FORM_PHY_NUMBER | phy_number);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_phy_pg1 - obtain phy page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @phy_number: phy number
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_phy_pg1(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2SasPhyPage1_t *config_page, u32 phy_number)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_PHY;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_SASPHY1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress =
+	    cpu_to_le32(MPI2_SAS_PHY_PGAD_FORM_PHY_NUMBER | phy_number);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_raid_volume_pg1 - obtain raid volume page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @form: GET_NEXT_HANDLE or HANDLE
+ * @handle: volume handle
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_raid_volume_pg1(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage1_t *config_page, u32 form,
+	u32 handle)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_VOLUME;
+	mpi_request.Header.PageNumber = 1;
+	mpi_request.Header.PageVersion = MPI2_RAIDVOLPAGE1_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress = cpu_to_le32(form | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_number_pds - obtain number of phys disk assigned to volume
+ * @ioc: per adapter object
+ * @handle: volume handle
+ * @num_pds: returns pds count
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_number_pds(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	u8 *num_pds)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	Mpi2RaidVolPage0_t config_page;
+	Mpi2ConfigReply_t mpi_reply;
+	int r;
+	u16 ioc_status;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	*num_pds = 0;
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_VOLUME;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_RAIDVOLPAGE0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, &mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress =
+	    cpu_to_le32(MPI2_RAID_VOLUME_PGAD_FORM_HANDLE | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, &mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, &config_page,
+	    sizeof(Mpi2RaidVolPage0_t));
+	if (!r) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_SUCCESS)
+			*num_pds = config_page.NumPhysDisks;
+	}
+
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_raid_volume_pg0 - obtain raid volume page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @form: GET_NEXT_HANDLE or HANDLE
+ * @handle: volume handle
+ * @sz: size of buffer passed in config_page
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_raid_volume_pg0(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2ConfigReply_t *mpi_reply, Mpi2RaidVolPage0_t *config_page, u32 form,
+	u32 handle, u16 sz)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_VOLUME;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_RAIDVOLPAGE0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress = cpu_to_le32(form | handle);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_phys_disk_pg0 - obtain phys disk page 0
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @form: GET_NEXT_PHYSDISKNUM, PHYSDISKNUM, DEVHANDLE
+ * @form_specific: specific to the form
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_phys_disk_pg0(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+	*mpi_reply, Mpi2RaidPhysDiskPage0_t *config_page, u32 form,
+	u32 form_specific)
+{
+	Mpi2ConfigRequest_t mpi_request;
+	int r;
+
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_RAID_PHYSDISK;
+	mpi_request.Header.PageNumber = 0;
+	mpi_request.Header.PageVersion = MPI2_RAIDPHYSDISKPAGE0_PAGEVERSION;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.PageAddress = cpu_to_le32(form | form_specific);
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	r = _config_request(ioc, &mpi_request, mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+	    sizeof(*config_page));
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_volume_handle - returns volume handle for give hidden
+ * raid components
+ * @ioc: per adapter object
+ * @pd_handle: phys disk handle
+ * @volume_handle: volume handle
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_volume_handle(struct MPT3SAS_ADAPTER *ioc, u16 pd_handle,
+	u16 *volume_handle)
+{
+	Mpi2RaidConfigurationPage0_t *config_page = NULL;
+	Mpi2ConfigRequest_t mpi_request;
+	Mpi2ConfigReply_t mpi_reply;
+	int r, i, config_page_sz;
+	u16 ioc_status;
+	int config_num;
+	u16 element_type;
+	u16 phys_disk_dev_handle;
+
+	*volume_handle = 0;
+	memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_CONFIG;
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+	mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+	mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_RAID_CONFIG;
+	mpi_request.Header.PageVersion = MPI2_RAIDCONFIG0_PAGEVERSION;
+	mpi_request.Header.PageNumber = 0;
+	ioc->build_zero_len_sge_mpi(ioc, &mpi_request.PageBufferSGE);
+	r = _config_request(ioc, &mpi_request, &mpi_reply,
+	    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+	if (r)
+		goto out;
+
+	mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT;
+	config_page_sz = (le16_to_cpu(mpi_reply.ExtPageLength) * 4);
+	config_page = kmalloc(config_page_sz, GFP_KERNEL);
+	if (!config_page) {
+		r = -1;
+		goto out;
+	}
+
+	config_num = 0xff;
+	while (1) {
+		mpi_request.PageAddress = cpu_to_le32(config_num +
+		    MPI2_RAID_PGAD_FORM_GET_NEXT_CONFIGNUM);
+		r = _config_request(ioc, &mpi_request, &mpi_reply,
+		    MPT3_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page,
+		    config_page_sz);
+		if (r)
+			goto out;
+		r = -1;
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
+			goto out;
+		for (i = 0; i < config_page->NumElements; i++) {
+			element_type = le16_to_cpu(config_page->
+			    ConfigElement[i].ElementFlags) &
+			    MPI2_RAIDCONFIG0_EFLAGS_MASK_ELEMENT_TYPE;
+			if (element_type ==
+			    MPI2_RAIDCONFIG0_EFLAGS_VOL_PHYS_DISK_ELEMENT ||
+			    element_type ==
+			    MPI2_RAIDCONFIG0_EFLAGS_OCE_ELEMENT) {
+				phys_disk_dev_handle =
+				    le16_to_cpu(config_page->ConfigElement[i].
+				    PhysDiskDevHandle);
+				if (phys_disk_dev_handle == pd_handle) {
+					*volume_handle =
+					    le16_to_cpu(config_page->
+					    ConfigElement[i].VolDevHandle);
+					r = 0;
+					goto out;
+				}
+			} else if (element_type ==
+			    MPI2_RAIDCONFIG0_EFLAGS_HOT_SPARE_ELEMENT) {
+				*volume_handle = 0;
+				r = 0;
+				goto out;
+			}
+		}
+		config_num = config_page->ConfigNum;
+	}
+ out:
+	kfree(config_page);
+	return r;
+}
+
+/**
+ * mpt3sas_config_get_volume_wwid - returns wwid given the volume handle
+ * @ioc: per adapter object
+ * @volume_handle: volume handle
+ * @wwid: volume wwid
+ * Context: sleep.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_config_get_volume_wwid(struct MPT3SAS_ADAPTER *ioc, u16 volume_handle,
+	u64 *wwid)
+{
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2RaidVolPage1_t raid_vol_pg1;
+
+	*wwid = 0;
+	if (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
+	    &raid_vol_pg1, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE,
+	    volume_handle))) {
+		*wwid = le64_to_cpu(raid_vol_pg1.WWID);
+		return 0;
+	} else
+		return -1;
+}
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
new file mode 100644
index 000000000000..8af944d7d13d
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -0,0 +1,3297 @@
+/*
+ * Management Module Support for MPT (Message Passing Technology) based
+ * controllers
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_ctl.c
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/compat.h>
+#include <linux/poll.h>
+
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include "mpt3sas_base.h"
+#include "mpt3sas_ctl.h"
+
+
+static struct fasync_struct *async_queue;
+static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
+
+
+/**
+ * enum block_state - blocking state
+ * @NON_BLOCKING: non blocking
+ * @BLOCKING: blocking
+ *
+ * These states are for ioctls that need to wait for a response
+ * from firmware, so they probably require sleep.
+ */
+enum block_state {
+	NON_BLOCKING,
+	BLOCKING,
+};
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _ctl_sas_device_find_by_handle - sas device search
+ * @ioc: per adapter object
+ * @handle: sas device handle (assigned by firmware)
+ * Context: Calling function should acquire ioc->sas_device_lock
+ *
+ * This searches for sas_device based on sas_address, then return sas_device
+ * object.
+ */
+static struct _sas_device *
+_ctl_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _sas_device *sas_device, *r;
+
+	r = NULL;
+	list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
+		if (sas_device->handle != handle)
+			continue;
+		r = sas_device;
+		goto out;
+	}
+
+ out:
+	return r;
+}
+
+/**
+ * _ctl_display_some_debug - debug routine
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @calling_function_name: string pass from calling function
+ * @mpi_reply: reply message frame
+ * Context: none.
+ *
+ * Function for displaying debug info helpful when debugging issues
+ * in this module.
+ */
+static void
+_ctl_display_some_debug(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
+{
+	Mpi2ConfigRequest_t *mpi_request;
+	char *desc = NULL;
+
+	if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
+		return;
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	switch (mpi_request->Function) {
+	case MPI2_FUNCTION_SCSI_IO_REQUEST:
+	{
+		Mpi2SCSIIORequest_t *scsi_request =
+		    (Mpi2SCSIIORequest_t *)mpi_request;
+
+		snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
+		    "scsi_io, cmd(0x%02x), cdb_len(%d)",
+		    scsi_request->CDB.CDB32[0],
+		    le16_to_cpu(scsi_request->IoFlags) & 0xF);
+		desc = ioc->tmp_string;
+		break;
+	}
+	case MPI2_FUNCTION_SCSI_TASK_MGMT:
+		desc = "task_mgmt";
+		break;
+	case MPI2_FUNCTION_IOC_INIT:
+		desc = "ioc_init";
+		break;
+	case MPI2_FUNCTION_IOC_FACTS:
+		desc = "ioc_facts";
+		break;
+	case MPI2_FUNCTION_CONFIG:
+	{
+		Mpi2ConfigRequest_t *config_request =
+		    (Mpi2ConfigRequest_t *)mpi_request;
+
+		snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
+		    "config, type(0x%02x), ext_type(0x%02x), number(%d)",
+		    (config_request->Header.PageType &
+		     MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
+		    config_request->Header.PageNumber);
+		desc = ioc->tmp_string;
+		break;
+	}
+	case MPI2_FUNCTION_PORT_FACTS:
+		desc = "port_facts";
+		break;
+	case MPI2_FUNCTION_PORT_ENABLE:
+		desc = "port_enable";
+		break;
+	case MPI2_FUNCTION_EVENT_NOTIFICATION:
+		desc = "event_notification";
+		break;
+	case MPI2_FUNCTION_FW_DOWNLOAD:
+		desc = "fw_download";
+		break;
+	case MPI2_FUNCTION_FW_UPLOAD:
+		desc = "fw_upload";
+		break;
+	case MPI2_FUNCTION_RAID_ACTION:
+		desc = "raid_action";
+		break;
+	case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
+	{
+		Mpi2SCSIIORequest_t *scsi_request =
+		    (Mpi2SCSIIORequest_t *)mpi_request;
+
+		snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
+		    "raid_pass, cmd(0x%02x), cdb_len(%d)",
+		    scsi_request->CDB.CDB32[0],
+		    le16_to_cpu(scsi_request->IoFlags) & 0xF);
+		desc = ioc->tmp_string;
+		break;
+	}
+	case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
+		desc = "sas_iounit_cntl";
+		break;
+	case MPI2_FUNCTION_SATA_PASSTHROUGH:
+		desc = "sata_pass";
+		break;
+	case MPI2_FUNCTION_DIAG_BUFFER_POST:
+		desc = "diag_buffer_post";
+		break;
+	case MPI2_FUNCTION_DIAG_RELEASE:
+		desc = "diag_release";
+		break;
+	case MPI2_FUNCTION_SMP_PASSTHROUGH:
+		desc = "smp_passthrough";
+		break;
+	}
+
+	if (!desc)
+		return;
+
+	pr_info(MPT3SAS_FMT "%s: %s, smid(%d)\n",
+	    ioc->name, calling_function_name, desc, smid);
+
+	if (!mpi_reply)
+		return;
+
+	if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
+		pr_info(MPT3SAS_FMT
+		    "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
+		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
+		    le32_to_cpu(mpi_reply->IOCLogInfo));
+
+	if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
+	    mpi_request->Function ==
+	    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
+		Mpi2SCSIIOReply_t *scsi_reply =
+		    (Mpi2SCSIIOReply_t *)mpi_reply;
+		struct _sas_device *sas_device = NULL;
+		unsigned long flags;
+
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = _ctl_sas_device_find_by_handle(ioc,
+		    le16_to_cpu(scsi_reply->DevHandle));
+		if (sas_device) {
+			pr_warn(MPT3SAS_FMT "\tsas_address(0x%016llx), phy(%d)\n",
+				ioc->name, (unsigned long long)
+			    sas_device->sas_address, sas_device->phy);
+			pr_warn(MPT3SAS_FMT
+			    "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
+			    ioc->name, (unsigned long long)
+			    sas_device->enclosure_logical_id, sas_device->slot);
+		}
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
+			pr_info(MPT3SAS_FMT
+			    "\tscsi_state(0x%02x), scsi_status"
+			    "(0x%02x)\n", ioc->name,
+			    scsi_reply->SCSIState,
+			    scsi_reply->SCSIStatus);
+	}
+}
+
+#endif
+
+/**
+ * mpt3sas_ctl_done - ctl module completion routine
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: none.
+ *
+ * The callback handler when using ioc->ctl_cb_idx.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_ctl_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+	Mpi2SCSIIOReply_t *scsiio_reply;
+	const void *sense_data;
+	u32 sz;
+
+	if (ioc->ctl_cmds.status == MPT3_CMD_NOT_USED)
+		return 1;
+	if (ioc->ctl_cmds.smid != smid)
+		return 1;
+	ioc->ctl_cmds.status |= MPT3_CMD_COMPLETE;
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (mpi_reply) {
+		memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
+		ioc->ctl_cmds.status |= MPT3_CMD_REPLY_VALID;
+		/* get sense data */
+		if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
+		    mpi_reply->Function ==
+		    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
+			scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
+			if (scsiio_reply->SCSIState &
+			    MPI2_SCSI_STATE_AUTOSENSE_VALID) {
+				sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
+				    le32_to_cpu(scsiio_reply->SenseCount));
+				sense_data = mpt3sas_base_get_sense_buffer(ioc,
+				    smid);
+				memcpy(ioc->ctl_cmds.sense, sense_data, sz);
+			}
+		}
+	}
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	_ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
+#endif
+	ioc->ctl_cmds.status &= ~MPT3_CMD_PENDING;
+	complete(&ioc->ctl_cmds.done);
+	return 1;
+}
+
+/**
+ * _ctl_check_event_type - determines when an event needs logging
+ * @ioc: per adapter object
+ * @event: firmware event
+ *
+ * The bitmask in ioc->event_type[] indicates which events should be
+ * be saved in the driver event_log.  This bitmask is set by application.
+ *
+ * Returns 1 when event should be captured, or zero means no match.
+ */
+static int
+_ctl_check_event_type(struct MPT3SAS_ADAPTER *ioc, u16 event)
+{
+	u16 i;
+	u32 desired_event;
+
+	if (event >= 128 || !event || !ioc->event_log)
+		return 0;
+
+	desired_event = (1 << (event % 32));
+	if (!desired_event)
+		desired_event = 1;
+	i = event / 32;
+	return desired_event & ioc->event_type[i];
+}
+
+/**
+ * mpt3sas_ctl_add_to_event_log - add event
+ * @ioc: per adapter object
+ * @mpi_reply: reply message frame
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_ctl_add_to_event_log(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventNotificationReply_t *mpi_reply)
+{
+	struct MPT3_IOCTL_EVENTS *event_log;
+	u16 event;
+	int i;
+	u32 sz, event_data_sz;
+	u8 send_aen = 0;
+
+	if (!ioc->event_log)
+		return;
+
+	event = le16_to_cpu(mpi_reply->Event);
+
+	if (_ctl_check_event_type(ioc, event)) {
+
+		/* insert entry into circular event_log */
+		i = ioc->event_context % MPT3SAS_CTL_EVENT_LOG_SIZE;
+		event_log = ioc->event_log;
+		event_log[i].event = event;
+		event_log[i].context = ioc->event_context++;
+
+		event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
+		sz = min_t(u32, event_data_sz, MPT3_EVENT_DATA_SIZE);
+		memset(event_log[i].data, 0, MPT3_EVENT_DATA_SIZE);
+		memcpy(event_log[i].data, mpi_reply->EventData, sz);
+		send_aen = 1;
+	}
+
+	/* This aen_event_read_flag flag is set until the
+	 * application has read the event log.
+	 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
+	 */
+	if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
+	    (send_aen && !ioc->aen_event_read_flag)) {
+		ioc->aen_event_read_flag = 1;
+		wake_up_interruptible(&ctl_poll_wait);
+		if (async_queue)
+			kill_fasync(&async_queue, SIGIO, POLL_IN);
+	}
+}
+
+/**
+ * mpt3sas_ctl_event_callback - firmware event handler (called at ISR time)
+ * @ioc: per adapter object
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: interrupt.
+ *
+ * This function merely adds a new work task into ioc->firmware_event_thread.
+ * The tasks are worked from _firmware_event_work in user context.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_ctl_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
+	u32 reply)
+{
+	Mpi2EventNotificationReply_t *mpi_reply;
+
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
+	return 1;
+}
+
+/**
+ * _ctl_verify_adapter - validates ioc_number passed from application
+ * @ioc: per adapter object
+ * @iocpp: The ioc pointer is returned in this.
+ *
+ * Return (-1) means error, else ioc_number.
+ */
+static int
+_ctl_verify_adapter(int ioc_number, struct MPT3SAS_ADAPTER **iocpp)
+{
+	struct MPT3SAS_ADAPTER *ioc;
+
+	list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
+		if (ioc->id != ioc_number)
+			continue;
+		*iocpp = ioc;
+		return ioc_number;
+	}
+	*iocpp = NULL;
+	return -1;
+}
+
+/**
+ * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
+ * @ioc: per adapter object
+ * @reset_phase: phase
+ *
+ * The handler for doing any required cleanup or initialization.
+ *
+ * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
+ * MPT3_IOC_DONE_RESET
+ */
+void
+mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
+{
+	int i;
+	u8 issue_reset;
+
+	switch (reset_phase) {
+	case MPT3_IOC_PRE_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
+		for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
+			if (!(ioc->diag_buffer_status[i] &
+			    MPT3_DIAG_BUFFER_IS_REGISTERED))
+				continue;
+			if ((ioc->diag_buffer_status[i] &
+			    MPT3_DIAG_BUFFER_IS_RELEASED))
+				continue;
+			mpt3sas_send_diag_release(ioc, i, &issue_reset);
+		}
+		break;
+	case MPT3_IOC_AFTER_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
+		if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
+			ioc->ctl_cmds.status |= MPT3_CMD_RESET;
+			mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
+			complete(&ioc->ctl_cmds.done);
+		}
+		break;
+	case MPT3_IOC_DONE_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
+
+		for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
+			if (!(ioc->diag_buffer_status[i] &
+			    MPT3_DIAG_BUFFER_IS_REGISTERED))
+				continue;
+			if ((ioc->diag_buffer_status[i] &
+			    MPT3_DIAG_BUFFER_IS_RELEASED))
+				continue;
+			ioc->diag_buffer_status[i] |=
+			    MPT3_DIAG_BUFFER_IS_DIAG_RESET;
+		}
+		break;
+	}
+}
+
+/**
+ * _ctl_fasync -
+ * @fd -
+ * @filep -
+ * @mode -
+ *
+ * Called when application request fasyn callback handler.
+ */
+static int
+_ctl_fasync(int fd, struct file *filep, int mode)
+{
+	return fasync_helper(fd, filep, mode, &async_queue);
+}
+
+/**
+ * _ctl_release -
+ * @inode -
+ * @filep -
+ *
+ * Called when application releases the fasyn callback handler.
+ */
+static int
+_ctl_release(struct inode *inode, struct file *filep)
+{
+	return fasync_helper(-1, filep, 0, &async_queue);
+}
+
+/**
+ * _ctl_poll -
+ * @file -
+ * @wait -
+ *
+ */
+static unsigned int
+_ctl_poll(struct file *filep, poll_table *wait)
+{
+	struct MPT3SAS_ADAPTER *ioc;
+
+	poll_wait(filep, &ctl_poll_wait, wait);
+
+	list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
+		if (ioc->aen_event_read_flag)
+			return POLLIN | POLLRDNORM;
+	}
+	return 0;
+}
+
+/**
+ * _ctl_set_task_mid - assign an active smid to tm request
+ * @ioc: per adapter object
+ * @karg - (struct mpt3_ioctl_command)
+ * @tm_request - pointer to mf from user space
+ *
+ * Returns 0 when an smid if found, else fail.
+ * during failure, the reply frame is filled.
+ */
+static int
+_ctl_set_task_mid(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command *karg,
+	Mpi2SCSITaskManagementRequest_t *tm_request)
+{
+	u8 found = 0;
+	u16 i;
+	u16 handle;
+	struct scsi_cmnd *scmd;
+	struct MPT3SAS_DEVICE *priv_data;
+	unsigned long flags;
+	Mpi2SCSITaskManagementReply_t *tm_reply;
+	u32 sz;
+	u32 lun;
+	char *desc = NULL;
+
+	if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
+		desc = "abort_task";
+	else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
+		desc = "query_task";
+	else
+		return 0;
+
+	lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
+
+	handle = le16_to_cpu(tm_request->DevHandle);
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	for (i = ioc->scsiio_depth; i && !found; i--) {
+		scmd = ioc->scsi_lookup[i - 1].scmd;
+		if (scmd == NULL || scmd->device == NULL ||
+		    scmd->device->hostdata == NULL)
+			continue;
+		if (lun != scmd->device->lun)
+			continue;
+		priv_data = scmd->device->hostdata;
+		if (priv_data->sas_target == NULL)
+			continue;
+		if (priv_data->sas_target->handle != handle)
+			continue;
+		tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
+		found = 1;
+	}
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+	if (!found) {
+		dctlprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: handle(0x%04x), lun(%d), no active mid!!\n",
+			ioc->name,
+		    desc, le16_to_cpu(tm_request->DevHandle), lun));
+		tm_reply = ioc->ctl_cmds.reply;
+		tm_reply->DevHandle = tm_request->DevHandle;
+		tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
+		tm_reply->TaskType = tm_request->TaskType;
+		tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
+		tm_reply->VP_ID = tm_request->VP_ID;
+		tm_reply->VF_ID = tm_request->VF_ID;
+		sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
+		if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
+		    sz))
+			pr_err("failure at %s:%d/%s()!\n", __FILE__,
+			    __LINE__, __func__);
+		return 1;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
+	    desc, le16_to_cpu(tm_request->DevHandle), lun,
+	     le16_to_cpu(tm_request->TaskMID)));
+	return 0;
+}
+
+/**
+ * _ctl_do_mpt_command - main handler for MPT3COMMAND opcode
+ * @ioc: per adapter object
+ * @karg - (struct mpt3_ioctl_command)
+ * @mf - pointer to mf in user space
+ */
+static long
+_ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
+	void __user *mf)
+{
+	MPI2RequestHeader_t *mpi_request = NULL, *request;
+	MPI2DefaultReply_t *mpi_reply;
+	u32 ioc_state;
+	u16 ioc_status;
+	u16 smid;
+	unsigned long timeout, timeleft;
+	u8 issue_reset;
+	u32 sz;
+	void *psge;
+	void *data_out = NULL;
+	dma_addr_t data_out_dma = 0;
+	size_t data_out_sz = 0;
+	void *data_in = NULL;
+	dma_addr_t data_in_dma = 0;
+	size_t data_in_sz = 0;
+	long ret;
+	u16 wait_state_count;
+
+	issue_reset = 0;
+
+	if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
+		    ioc->name, __func__);
+		ret = -EAGAIN;
+		goto out;
+	}
+
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == 10) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			ret = -EFAULT;
+			goto out;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name,
+		    __func__, wait_state_count);
+	}
+	if (wait_state_count)
+		pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
+		    ioc->name, __func__);
+
+	mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
+	if (!mpi_request) {
+		pr_err(MPT3SAS_FMT
+			"%s: failed obtaining a memory for mpi_request\n",
+			ioc->name, __func__);
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	/* Check for overflow and wraparound */
+	if (karg.data_sge_offset * 4 > ioc->request_sz ||
+	    karg.data_sge_offset > (UINT_MAX / 4)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	/* copy in request message frame from user */
+	if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
+		pr_err("failure at %s:%d/%s()!\n", __FILE__, __LINE__,
+		    __func__);
+		ret = -EFAULT;
+		goto out;
+	}
+
+	if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
+		smid = mpt3sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
+		if (!smid) {
+			pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+			    ioc->name, __func__);
+			ret = -EAGAIN;
+			goto out;
+		}
+	} else {
+
+		smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
+		if (!smid) {
+			pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+			    ioc->name, __func__);
+			ret = -EAGAIN;
+			goto out;
+		}
+	}
+
+	ret = 0;
+	ioc->ctl_cmds.status = MPT3_CMD_PENDING;
+	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
+	request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memcpy(request, mpi_request, karg.data_sge_offset*4);
+	ioc->ctl_cmds.smid = smid;
+	data_out_sz = karg.data_out_size;
+	data_in_sz = karg.data_in_size;
+
+	if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
+	    mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
+		if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
+		    le16_to_cpu(mpi_request->FunctionDependent1) >
+		    ioc->facts.MaxDevHandle) {
+			ret = -EINVAL;
+			mpt3sas_base_free_smid(ioc, smid);
+			goto out;
+		}
+	}
+
+	/* obtain dma-able memory for data transfer */
+	if (data_out_sz) /* WRITE */ {
+		data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
+		    &data_out_dma);
+		if (!data_out) {
+			pr_err("failure at %s:%d/%s()!\n", __FILE__,
+			    __LINE__, __func__);
+			ret = -ENOMEM;
+			mpt3sas_base_free_smid(ioc, smid);
+			goto out;
+		}
+		if (copy_from_user(data_out, karg.data_out_buf_ptr,
+			data_out_sz)) {
+			pr_err("failure at %s:%d/%s()!\n", __FILE__,
+			    __LINE__, __func__);
+			ret =  -EFAULT;
+			mpt3sas_base_free_smid(ioc, smid);
+			goto out;
+		}
+	}
+
+	if (data_in_sz) /* READ */ {
+		data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
+		    &data_in_dma);
+		if (!data_in) {
+			pr_err("failure at %s:%d/%s()!\n", __FILE__,
+			    __LINE__, __func__);
+			ret = -ENOMEM;
+			mpt3sas_base_free_smid(ioc, smid);
+			goto out;
+		}
+	}
+
+	psge = (void *)request + (karg.data_sge_offset*4);
+
+	/* send command to firmware */
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	_ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
+#endif
+
+	init_completion(&ioc->ctl_cmds.done);
+	switch (mpi_request->Function) {
+	case MPI2_FUNCTION_SCSI_IO_REQUEST:
+	case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
+	{
+		Mpi2SCSIIORequest_t *scsiio_request =
+		    (Mpi2SCSIIORequest_t *)request;
+		scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
+		scsiio_request->SenseBufferLowAddress =
+		    mpt3sas_base_get_sense_buffer_dma(ioc, smid);
+		memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
+		ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
+		    data_in_dma, data_in_sz);
+
+		if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
+			mpt3sas_base_put_smid_scsi_io(ioc, smid,
+			    le16_to_cpu(mpi_request->FunctionDependent1));
+		else
+			mpt3sas_base_put_smid_default(ioc, smid);
+		break;
+	}
+	case MPI2_FUNCTION_SCSI_TASK_MGMT:
+	{
+		Mpi2SCSITaskManagementRequest_t *tm_request =
+		    (Mpi2SCSITaskManagementRequest_t *)request;
+
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"TASK_MGMT: handle(0x%04x), task_type(0x%02x)\n",
+			ioc->name,
+		    le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
+
+		if (tm_request->TaskType ==
+		    MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
+		    tm_request->TaskType ==
+		    MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
+			if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
+				mpt3sas_base_free_smid(ioc, smid);
+				goto out;
+			}
+		}
+
+		mpt3sas_scsih_set_tm_flag(ioc, le16_to_cpu(
+		    tm_request->DevHandle));
+		ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
+		    data_in_dma, data_in_sz);
+		mpt3sas_base_put_smid_hi_priority(ioc, smid);
+		break;
+	}
+	case MPI2_FUNCTION_SMP_PASSTHROUGH:
+	{
+		Mpi2SmpPassthroughRequest_t *smp_request =
+		    (Mpi2SmpPassthroughRequest_t *)mpi_request;
+		u8 *data;
+
+		/* ioc determines which port to use */
+		smp_request->PhysicalPort = 0xFF;
+		if (smp_request->PassthroughFlags &
+		    MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
+			data = (u8 *)&smp_request->SGL;
+		else {
+			if (unlikely(data_out == NULL)) {
+				pr_err("failure at %s:%d/%s()!\n",
+				    __FILE__, __LINE__, __func__);
+				mpt3sas_base_free_smid(ioc, smid);
+				ret = -EINVAL;
+				goto out;
+			}
+			data = data_out;
+		}
+
+		if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
+			ioc->ioc_link_reset_in_progress = 1;
+			ioc->ignore_loginfos = 1;
+		}
+		ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
+		    data_in_sz);
+		mpt3sas_base_put_smid_default(ioc, smid);
+		break;
+	}
+	case MPI2_FUNCTION_SATA_PASSTHROUGH:
+	case MPI2_FUNCTION_FW_DOWNLOAD:
+	case MPI2_FUNCTION_FW_UPLOAD:
+	{
+		ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
+		    data_in_sz);
+		mpt3sas_base_put_smid_default(ioc, smid);
+		break;
+	}
+	case MPI2_FUNCTION_TOOLBOX:
+	{
+		Mpi2ToolboxCleanRequest_t *toolbox_request =
+			(Mpi2ToolboxCleanRequest_t *)mpi_request;
+
+		if (toolbox_request->Tool == MPI2_TOOLBOX_DIAGNOSTIC_CLI_TOOL) {
+			ioc->build_sg(ioc, psge, data_out_dma, data_out_sz,
+				data_in_dma, data_in_sz);
+		} else {
+			ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
+				data_in_dma, data_in_sz);
+		}
+		mpt3sas_base_put_smid_default(ioc, smid);
+		break;
+	}
+	case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
+	{
+		Mpi2SasIoUnitControlRequest_t *sasiounit_request =
+		    (Mpi2SasIoUnitControlRequest_t *)mpi_request;
+
+		if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
+		    || sasiounit_request->Operation ==
+		    MPI2_SAS_OP_PHY_LINK_RESET) {
+			ioc->ioc_link_reset_in_progress = 1;
+			ioc->ignore_loginfos = 1;
+		}
+		/* drop to default case for posting the request */
+	}
+	default:
+		ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
+		    data_in_dma, data_in_sz);
+		mpt3sas_base_put_smid_default(ioc, smid);
+		break;
+	}
+
+	if (karg.timeout < MPT3_IOCTL_DEFAULT_TIMEOUT)
+		timeout = MPT3_IOCTL_DEFAULT_TIMEOUT;
+	else
+		timeout = karg.timeout;
+	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
+	    timeout*HZ);
+	if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
+		Mpi2SCSITaskManagementRequest_t *tm_request =
+		    (Mpi2SCSITaskManagementRequest_t *)mpi_request;
+		mpt3sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
+		    tm_request->DevHandle));
+		mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
+	} else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
+	    mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
+		ioc->ioc_link_reset_in_progress) {
+		ioc->ioc_link_reset_in_progress = 0;
+		ioc->ignore_loginfos = 0;
+	}
+	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
+		    __func__);
+		_debug_dump_mf(mpi_request, karg.data_sge_offset);
+		if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+
+	mpi_reply = ioc->ctl_cmds.reply;
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
+	    (ioc->logging_level & MPT_DEBUG_TM)) {
+		Mpi2SCSITaskManagementReply_t *tm_reply =
+		    (Mpi2SCSITaskManagementReply_t *)mpi_reply;
+
+		pr_info(MPT3SAS_FMT "TASK_MGMT: " \
+		    "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
+		    "TerminationCount(0x%08x)\n", ioc->name,
+		    le16_to_cpu(tm_reply->IOCStatus),
+		    le32_to_cpu(tm_reply->IOCLogInfo),
+		    le32_to_cpu(tm_reply->TerminationCount));
+	}
+#endif
+	/* copy out xdata to user */
+	if (data_in_sz) {
+		if (copy_to_user(karg.data_in_buf_ptr, data_in,
+		    data_in_sz)) {
+			pr_err("failure at %s:%d/%s()!\n", __FILE__,
+			    __LINE__, __func__);
+			ret = -ENODATA;
+			goto out;
+		}
+	}
+
+	/* copy out reply message frame to user */
+	if (karg.max_reply_bytes) {
+		sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
+		if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
+		    sz)) {
+			pr_err("failure at %s:%d/%s()!\n", __FILE__,
+			    __LINE__, __func__);
+			ret = -ENODATA;
+			goto out;
+		}
+	}
+
+	/* copy out sense to user */
+	if (karg.max_sense_bytes && (mpi_request->Function ==
+	    MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
+	    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
+		sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
+		if (copy_to_user(karg.sense_data_ptr, ioc->ctl_cmds.sense,
+		    sz)) {
+			pr_err("failure at %s:%d/%s()!\n", __FILE__,
+			    __LINE__, __func__);
+			ret = -ENODATA;
+			goto out;
+		}
+	}
+
+ issue_host_reset:
+	if (issue_reset) {
+		ret = -ENODATA;
+		if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
+		    mpi_request->Function ==
+		    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
+		    mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
+			pr_info(MPT3SAS_FMT "issue target reset: handle = (0x%04x)\n",
+				ioc->name,
+				le16_to_cpu(mpi_request->FunctionDependent1));
+			mpt3sas_halt_firmware(ioc);
+			mpt3sas_scsih_issue_tm(ioc,
+			    le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
+			    0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 30,
+			    0, TM_MUTEX_ON);
+		} else
+			mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+			    FORCE_BIG_HAMMER);
+	}
+
+ out:
+
+	/* free memory associated with sg buffers */
+	if (data_in)
+		pci_free_consistent(ioc->pdev, data_in_sz, data_in,
+		    data_in_dma);
+
+	if (data_out)
+		pci_free_consistent(ioc->pdev, data_out_sz, data_out,
+		    data_out_dma);
+
+	kfree(mpi_request);
+	ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
+	return ret;
+}
+
+/**
+ * _ctl_getiocinfo - main handler for MPT3IOCINFO opcode
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ */
+static long
+_ctl_getiocinfo(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_ioctl_iocinfo karg;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
+	    __func__));
+
+	memset(&karg, 0 , sizeof(karg));
+	karg.adapter_type = MPT3_IOCTL_INTERFACE_SAS3;
+	if (ioc->pfacts)
+		karg.port_number = ioc->pfacts[0].PortNumber;
+	karg.hw_rev = ioc->pdev->revision;
+	karg.pci_id = ioc->pdev->device;
+	karg.subsystem_device = ioc->pdev->subsystem_device;
+	karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
+	karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
+	karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
+	karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
+	karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
+	karg.firmware_version = ioc->facts.FWVersion.Word;
+	strcpy(karg.driver_version, MPT3SAS_DRIVER_NAME);
+	strcat(karg.driver_version, "-");
+	strcat(karg.driver_version, MPT3SAS_DRIVER_VERSION);
+	karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
+
+	if (copy_to_user(arg, &karg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+	return 0;
+}
+
+/**
+ * _ctl_eventquery - main handler for MPT3EVENTQUERY opcode
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ */
+static long
+_ctl_eventquery(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_ioctl_eventquery karg;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
+	    __func__));
+
+	karg.event_entries = MPT3SAS_CTL_EVENT_LOG_SIZE;
+	memcpy(karg.event_types, ioc->event_type,
+	    MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
+
+	if (copy_to_user(arg, &karg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+	return 0;
+}
+
+/**
+ * _ctl_eventenable - main handler for MPT3EVENTENABLE opcode
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ */
+static long
+_ctl_eventenable(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_ioctl_eventenable karg;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
+	    __func__));
+
+	memcpy(ioc->event_type, karg.event_types,
+	    MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
+	mpt3sas_base_validate_event_type(ioc, ioc->event_type);
+
+	if (ioc->event_log)
+		return 0;
+	/* initialize event_log */
+	ioc->event_context = 0;
+	ioc->aen_event_read_flag = 0;
+	ioc->event_log = kcalloc(MPT3SAS_CTL_EVENT_LOG_SIZE,
+	    sizeof(struct MPT3_IOCTL_EVENTS), GFP_KERNEL);
+	if (!ioc->event_log) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+/**
+ * _ctl_eventreport - main handler for MPT3EVENTREPORT opcode
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ */
+static long
+_ctl_eventreport(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_ioctl_eventreport karg;
+	u32 number_bytes, max_events, max;
+	struct mpt3_ioctl_eventreport __user *uarg = arg;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
+	    __func__));
+
+	number_bytes = karg.hdr.max_data_size -
+	    sizeof(struct mpt3_ioctl_header);
+	max_events = number_bytes/sizeof(struct MPT3_IOCTL_EVENTS);
+	max = min_t(u32, MPT3SAS_CTL_EVENT_LOG_SIZE, max_events);
+
+	/* If fewer than 1 event is requested, there must have
+	 * been some type of error.
+	 */
+	if (!max || !ioc->event_log)
+		return -ENODATA;
+
+	number_bytes = max * sizeof(struct MPT3_IOCTL_EVENTS);
+	if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	/* reset flag so SIGIO can restart */
+	ioc->aen_event_read_flag = 0;
+	return 0;
+}
+
+/**
+ * _ctl_do_reset - main handler for MPT3HARDRESET opcode
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ */
+static long
+_ctl_do_reset(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_ioctl_diag_reset karg;
+	int retval;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery ||
+	    ioc->is_driver_loading)
+		return -EAGAIN;
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n", ioc->name,
+	    __func__));
+
+	retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+	    FORCE_BIG_HAMMER);
+	pr_info(MPT3SAS_FMT "host reset: %s\n",
+	    ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
+	return 0;
+}
+
+/**
+ * _ctl_btdh_search_sas_device - searching for sas device
+ * @ioc: per adapter object
+ * @btdh: btdh ioctl payload
+ */
+static int
+_ctl_btdh_search_sas_device(struct MPT3SAS_ADAPTER *ioc,
+	struct mpt3_ioctl_btdh_mapping *btdh)
+{
+	struct _sas_device *sas_device;
+	unsigned long flags;
+	int rc = 0;
+
+	if (list_empty(&ioc->sas_device_list))
+		return rc;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
+		if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
+		    btdh->handle == sas_device->handle) {
+			btdh->bus = sas_device->channel;
+			btdh->id = sas_device->id;
+			rc = 1;
+			goto out;
+		} else if (btdh->bus == sas_device->channel && btdh->id ==
+		    sas_device->id && btdh->handle == 0xFFFF) {
+			btdh->handle = sas_device->handle;
+			rc = 1;
+			goto out;
+		}
+	}
+ out:
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	return rc;
+}
+
+/**
+ * _ctl_btdh_search_raid_device - searching for raid device
+ * @ioc: per adapter object
+ * @btdh: btdh ioctl payload
+ */
+static int
+_ctl_btdh_search_raid_device(struct MPT3SAS_ADAPTER *ioc,
+	struct mpt3_ioctl_btdh_mapping *btdh)
+{
+	struct _raid_device *raid_device;
+	unsigned long flags;
+	int rc = 0;
+
+	if (list_empty(&ioc->raid_device_list))
+		return rc;
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
+		if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
+		    btdh->handle == raid_device->handle) {
+			btdh->bus = raid_device->channel;
+			btdh->id = raid_device->id;
+			rc = 1;
+			goto out;
+		} else if (btdh->bus == raid_device->channel && btdh->id ==
+		    raid_device->id && btdh->handle == 0xFFFF) {
+			btdh->handle = raid_device->handle;
+			rc = 1;
+			goto out;
+		}
+	}
+ out:
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+	return rc;
+}
+
+/**
+ * _ctl_btdh_mapping - main handler for MPT3BTDHMAPPING opcode
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ */
+static long
+_ctl_btdh_mapping(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_ioctl_btdh_mapping karg;
+	int rc;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	rc = _ctl_btdh_search_sas_device(ioc, &karg);
+	if (!rc)
+		_ctl_btdh_search_raid_device(ioc, &karg);
+
+	if (copy_to_user(arg, &karg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+	return 0;
+}
+
+/**
+ * _ctl_diag_capability - return diag buffer capability
+ * @ioc: per adapter object
+ * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
+ *
+ * returns 1 when diag buffer support is enabled in firmware
+ */
+static u8
+_ctl_diag_capability(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type)
+{
+	u8 rc = 0;
+
+	switch (buffer_type) {
+	case MPI2_DIAG_BUF_TYPE_TRACE:
+		if (ioc->facts.IOCCapabilities &
+		    MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
+			rc = 1;
+		break;
+	case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
+		if (ioc->facts.IOCCapabilities &
+		    MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
+			rc = 1;
+		break;
+	case MPI2_DIAG_BUF_TYPE_EXTENDED:
+		if (ioc->facts.IOCCapabilities &
+		    MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
+			rc = 1;
+	}
+
+	return rc;
+}
+
+
+/**
+ * _ctl_diag_register_2 - wrapper for registering diag buffer support
+ * @ioc: per adapter object
+ * @diag_register: the diag_register struct passed in from user space
+ *
+ */
+static long
+_ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
+	struct mpt3_diag_register *diag_register)
+{
+	int rc, i;
+	void *request_data = NULL;
+	dma_addr_t request_data_dma;
+	u32 request_data_sz = 0;
+	Mpi2DiagBufferPostRequest_t *mpi_request;
+	Mpi2DiagBufferPostReply_t *mpi_reply;
+	u8 buffer_type;
+	unsigned long timeleft;
+	u16 smid;
+	u16 ioc_status;
+	u32 ioc_state;
+	u8 issue_reset = 0;
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		pr_err(MPT3SAS_FMT
+		    "%s: failed due to ioc not operational\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	buffer_type = diag_register->buffer_type;
+	if (!_ctl_diag_capability(ioc, buffer_type)) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have capability for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -EPERM;
+	}
+
+	if (ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) {
+		pr_err(MPT3SAS_FMT
+			"%s: already has a registered buffer for buffer_type(0x%02x)\n",
+			ioc->name, __func__,
+		    buffer_type);
+		return -EINVAL;
+	}
+
+	if (diag_register->requested_buffer_size % 4)  {
+		pr_err(MPT3SAS_FMT
+			"%s: the requested_buffer_size is not 4 byte aligned\n",
+			ioc->name, __func__);
+		return -EINVAL;
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	rc = 0;
+	ioc->ctl_cmds.status = MPT3_CMD_PENDING;
+	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->ctl_cmds.smid = smid;
+
+	request_data = ioc->diag_buffer[buffer_type];
+	request_data_sz = diag_register->requested_buffer_size;
+	ioc->unique_id[buffer_type] = diag_register->unique_id;
+	ioc->diag_buffer_status[buffer_type] = 0;
+	memcpy(ioc->product_specific[buffer_type],
+	    diag_register->product_specific, MPT3_PRODUCT_SPECIFIC_DWORDS);
+	ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
+
+	if (request_data) {
+		request_data_dma = ioc->diag_buffer_dma[buffer_type];
+		if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
+			pci_free_consistent(ioc->pdev,
+			    ioc->diag_buffer_sz[buffer_type],
+			    request_data, request_data_dma);
+			request_data = NULL;
+		}
+	}
+
+	if (request_data == NULL) {
+		ioc->diag_buffer_sz[buffer_type] = 0;
+		ioc->diag_buffer_dma[buffer_type] = 0;
+		request_data = pci_alloc_consistent(
+			ioc->pdev, request_data_sz, &request_data_dma);
+		if (request_data == NULL) {
+			pr_err(MPT3SAS_FMT "%s: failed allocating memory" \
+			    " for diag buffers, requested size(%d)\n",
+			    ioc->name, __func__, request_data_sz);
+			mpt3sas_base_free_smid(ioc, smid);
+			return -ENOMEM;
+		}
+		ioc->diag_buffer[buffer_type] = request_data;
+		ioc->diag_buffer_sz[buffer_type] = request_data_sz;
+		ioc->diag_buffer_dma[buffer_type] = request_data_dma;
+	}
+
+	mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
+	mpi_request->BufferType = diag_register->buffer_type;
+	mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
+	mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
+	mpi_request->BufferLength = cpu_to_le32(request_data_sz);
+	mpi_request->VF_ID = 0; /* TODO */
+	mpi_request->VP_ID = 0;
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: diag_buffer(0x%p), dma(0x%llx), sz(%d)\n",
+		ioc->name, __func__, request_data,
+	    (unsigned long long)request_data_dma,
+	    le32_to_cpu(mpi_request->BufferLength)));
+
+	for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
+		mpi_request->ProductSpecific[i] =
+			cpu_to_le32(ioc->product_specific[buffer_type][i]);
+
+	init_completion(&ioc->ctl_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
+	    MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
+
+	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
+		    __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2DiagBufferPostRequest_t)/4);
+		if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+
+	/* process the completed Reply Message Frame */
+	if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
+		pr_err(MPT3SAS_FMT "%s: no reply message\n",
+		    ioc->name, __func__);
+		rc = -EFAULT;
+		goto out;
+	}
+
+	mpi_reply = ioc->ctl_cmds.reply;
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
+
+	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
+		ioc->diag_buffer_status[buffer_type] |=
+			MPT3_DIAG_BUFFER_IS_REGISTERED;
+		dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
+		    ioc->name, __func__));
+	} else {
+		pr_info(MPT3SAS_FMT
+			"%s: ioc_status(0x%04x) log_info(0x%08x)\n",
+			ioc->name, __func__,
+		    ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
+		rc = -EFAULT;
+	}
+
+ issue_host_reset:
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+
+ out:
+
+	if (rc && request_data)
+		pci_free_consistent(ioc->pdev, request_data_sz,
+		    request_data, request_data_dma);
+
+	ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
+	return rc;
+}
+
+/**
+ * mpt3sas_enable_diag_buffer - enabling diag_buffers support driver load time
+ * @ioc: per adapter object
+ * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
+ *
+ * This is called when command line option diag_buffer_enable is enabled
+ * at driver load time.
+ */
+void
+mpt3sas_enable_diag_buffer(struct MPT3SAS_ADAPTER *ioc, u8 bits_to_register)
+{
+	struct mpt3_diag_register diag_register;
+
+	memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
+
+	if (bits_to_register & 1) {
+		pr_info(MPT3SAS_FMT "registering trace buffer support\n",
+		    ioc->name);
+		ioc->diag_trigger_master.MasterData =
+		    (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
+		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
+		/* register for 2MB buffers  */
+		diag_register.requested_buffer_size = 2 * (1024 * 1024);
+		diag_register.unique_id = 0x7075900;
+		_ctl_diag_register_2(ioc,  &diag_register);
+	}
+
+	if (bits_to_register & 2) {
+		pr_info(MPT3SAS_FMT "registering snapshot buffer support\n",
+		    ioc->name);
+		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
+		/* register for 2MB buffers  */
+		diag_register.requested_buffer_size = 2 * (1024 * 1024);
+		diag_register.unique_id = 0x7075901;
+		_ctl_diag_register_2(ioc,  &diag_register);
+	}
+
+	if (bits_to_register & 4) {
+		pr_info(MPT3SAS_FMT "registering extended buffer support\n",
+		    ioc->name);
+		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
+		/* register for 2MB buffers  */
+		diag_register.requested_buffer_size = 2 * (1024 * 1024);
+		diag_register.unique_id = 0x7075901;
+		_ctl_diag_register_2(ioc,  &diag_register);
+	}
+}
+
+/**
+ * _ctl_diag_register - application register with driver
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ *
+ * This will allow the driver to setup any required buffers that will be
+ * needed by firmware to communicate with the driver.
+ */
+static long
+_ctl_diag_register(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_diag_register karg;
+	long rc;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	rc = _ctl_diag_register_2(ioc, &karg);
+	return rc;
+}
+
+/**
+ * _ctl_diag_unregister - application unregister with driver
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ *
+ * This will allow the driver to cleanup any memory allocated for diag
+ * messages and to free up any resources.
+ */
+static long
+_ctl_diag_unregister(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_diag_unregister karg;
+	void *request_data;
+	dma_addr_t request_data_dma;
+	u32 request_data_sz;
+	u8 buffer_type;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	buffer_type = karg.unique_id & 0x000000ff;
+	if (!_ctl_diag_capability(ioc, buffer_type)) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have capability for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -EPERM;
+	}
+
+	if ((ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		pr_err(MPT3SAS_FMT
+			"%s: buffer_type(0x%02x) is not registered\n",
+			ioc->name, __func__, buffer_type);
+		return -EINVAL;
+	}
+	if ((ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
+		pr_err(MPT3SAS_FMT
+			"%s: buffer_type(0x%02x) has not been released\n",
+			ioc->name, __func__, buffer_type);
+		return -EINVAL;
+	}
+
+	if (karg.unique_id != ioc->unique_id[buffer_type]) {
+		pr_err(MPT3SAS_FMT
+			"%s: unique_id(0x%08x) is not registered\n",
+			ioc->name, __func__, karg.unique_id);
+		return -EINVAL;
+	}
+
+	request_data = ioc->diag_buffer[buffer_type];
+	if (!request_data) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -ENOMEM;
+	}
+
+	request_data_sz = ioc->diag_buffer_sz[buffer_type];
+	request_data_dma = ioc->diag_buffer_dma[buffer_type];
+	pci_free_consistent(ioc->pdev, request_data_sz,
+	    request_data, request_data_dma);
+	ioc->diag_buffer[buffer_type] = NULL;
+	ioc->diag_buffer_status[buffer_type] = 0;
+	return 0;
+}
+
+/**
+ * _ctl_diag_query - query relevant info associated with diag buffers
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ *
+ * The application will send only buffer_type and unique_id.  Driver will
+ * inspect unique_id first, if valid, fill in all the info.  If unique_id is
+ * 0x00, the driver will return info specified by Buffer Type.
+ */
+static long
+_ctl_diag_query(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_diag_query karg;
+	void *request_data;
+	int i;
+	u8 buffer_type;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	karg.application_flags = 0;
+	buffer_type = karg.buffer_type;
+
+	if (!_ctl_diag_capability(ioc, buffer_type)) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have capability for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -EPERM;
+	}
+
+	if ((ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		pr_err(MPT3SAS_FMT
+			"%s: buffer_type(0x%02x) is not registered\n",
+			ioc->name, __func__, buffer_type);
+		return -EINVAL;
+	}
+
+	if (karg.unique_id & 0xffffff00) {
+		if (karg.unique_id != ioc->unique_id[buffer_type]) {
+			pr_err(MPT3SAS_FMT
+				"%s: unique_id(0x%08x) is not registered\n",
+				ioc->name, __func__, karg.unique_id);
+			return -EINVAL;
+		}
+	}
+
+	request_data = ioc->diag_buffer[buffer_type];
+	if (!request_data) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have buffer for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -ENOMEM;
+	}
+
+	if (ioc->diag_buffer_status[buffer_type] & MPT3_DIAG_BUFFER_IS_RELEASED)
+		karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
+		    MPT3_APP_FLAGS_BUFFER_VALID);
+	else
+		karg.application_flags = (MPT3_APP_FLAGS_APP_OWNED |
+		    MPT3_APP_FLAGS_BUFFER_VALID |
+		    MPT3_APP_FLAGS_FW_BUFFER_ACCESS);
+
+	for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
+		karg.product_specific[i] =
+		    ioc->product_specific[buffer_type][i];
+
+	karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
+	karg.driver_added_buffer_size = 0;
+	karg.unique_id = ioc->unique_id[buffer_type];
+	karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
+
+	if (copy_to_user(arg, &karg, sizeof(struct mpt3_diag_query))) {
+		pr_err(MPT3SAS_FMT
+			"%s: unable to write mpt3_diag_query data @ %p\n",
+			ioc->name, __func__, arg);
+		return -EFAULT;
+	}
+	return 0;
+}
+
+/**
+ * mpt3sas_send_diag_release - Diag Release Message
+ * @ioc: per adapter object
+ * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
+ * @issue_reset - specifies whether host reset is required.
+ *
+ */
+int
+mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
+	u8 *issue_reset)
+{
+	Mpi2DiagReleaseRequest_t *mpi_request;
+	Mpi2DiagReleaseReply_t *mpi_reply;
+	u16 smid;
+	u16 ioc_status;
+	u32 ioc_state;
+	int rc;
+	unsigned long timeleft;
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	rc = 0;
+	*issue_reset = 0;
+
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (ioc->diag_buffer_status[buffer_type] &
+		    MPT3_DIAG_BUFFER_IS_REGISTERED)
+			ioc->diag_buffer_status[buffer_type] |=
+			    MPT3_DIAG_BUFFER_IS_RELEASED;
+		dctlprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: skipping due to FAULT state\n", ioc->name,
+		    __func__));
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	ioc->ctl_cmds.status = MPT3_CMD_PENDING;
+	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->ctl_cmds.smid = smid;
+
+	mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
+	mpi_request->BufferType = buffer_type;
+	mpi_request->VF_ID = 0; /* TODO */
+	mpi_request->VP_ID = 0;
+
+	init_completion(&ioc->ctl_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
+	    MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
+
+	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
+		    __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2DiagReleaseRequest_t)/4);
+		if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
+			*issue_reset = 1;
+		rc = -EFAULT;
+		goto out;
+	}
+
+	/* process the completed Reply Message Frame */
+	if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
+		pr_err(MPT3SAS_FMT "%s: no reply message\n",
+		    ioc->name, __func__);
+		rc = -EFAULT;
+		goto out;
+	}
+
+	mpi_reply = ioc->ctl_cmds.reply;
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
+
+	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
+		ioc->diag_buffer_status[buffer_type] |=
+		    MPT3_DIAG_BUFFER_IS_RELEASED;
+		dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
+		    ioc->name, __func__));
+	} else {
+		pr_info(MPT3SAS_FMT
+			"%s: ioc_status(0x%04x) log_info(0x%08x)\n",
+			ioc->name, __func__,
+		    ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
+		rc = -EFAULT;
+	}
+
+ out:
+	ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
+	return rc;
+}
+
+/**
+ * _ctl_diag_release - request to send Diag Release Message to firmware
+ * @arg - user space buffer containing ioctl content
+ *
+ * This allows ownership of the specified buffer to returned to the driver,
+ * allowing an application to read the buffer without fear that firmware is
+ * overwritting information in the buffer.
+ */
+static long
+_ctl_diag_release(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_diag_release karg;
+	void *request_data;
+	int rc;
+	u8 buffer_type;
+	u8 issue_reset = 0;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	buffer_type = karg.unique_id & 0x000000ff;
+	if (!_ctl_diag_capability(ioc, buffer_type)) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have capability for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -EPERM;
+	}
+
+	if ((ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		pr_err(MPT3SAS_FMT
+			"%s: buffer_type(0x%02x) is not registered\n",
+			ioc->name, __func__, buffer_type);
+		return -EINVAL;
+	}
+
+	if (karg.unique_id != ioc->unique_id[buffer_type]) {
+		pr_err(MPT3SAS_FMT
+			"%s: unique_id(0x%08x) is not registered\n",
+			ioc->name, __func__, karg.unique_id);
+		return -EINVAL;
+	}
+
+	if (ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) {
+		pr_err(MPT3SAS_FMT
+			"%s: buffer_type(0x%02x) is already released\n",
+			ioc->name, __func__,
+		    buffer_type);
+		return 0;
+	}
+
+	request_data = ioc->diag_buffer[buffer_type];
+
+	if (!request_data) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have memory allocated for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -ENOMEM;
+	}
+
+	/* buffers were released by due to host reset */
+	if ((ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_DIAG_RESET)) {
+		ioc->diag_buffer_status[buffer_type] |=
+		    MPT3_DIAG_BUFFER_IS_RELEASED;
+		ioc->diag_buffer_status[buffer_type] &=
+		    ~MPT3_DIAG_BUFFER_IS_DIAG_RESET;
+		pr_err(MPT3SAS_FMT
+			"%s: buffer_type(0x%02x) was released due to host reset\n",
+			ioc->name, __func__, buffer_type);
+		return 0;
+	}
+
+	rc = mpt3sas_send_diag_release(ioc, buffer_type, &issue_reset);
+
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+
+	return rc;
+}
+
+/**
+ * _ctl_diag_read_buffer - request for copy of the diag buffer
+ * @ioc: per adapter object
+ * @arg - user space buffer containing ioctl content
+ */
+static long
+_ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
+{
+	struct mpt3_diag_read_buffer karg;
+	struct mpt3_diag_read_buffer __user *uarg = arg;
+	void *request_data, *diag_data;
+	Mpi2DiagBufferPostRequest_t *mpi_request;
+	Mpi2DiagBufferPostReply_t *mpi_reply;
+	int rc, i;
+	u8 buffer_type;
+	unsigned long timeleft, request_size, copy_size;
+	u16 smid;
+	u16 ioc_status;
+	u8 issue_reset = 0;
+
+	if (copy_from_user(&karg, arg, sizeof(karg))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s\n", ioc->name,
+	    __func__));
+
+	buffer_type = karg.unique_id & 0x000000ff;
+	if (!_ctl_diag_capability(ioc, buffer_type)) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have capability for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -EPERM;
+	}
+
+	if (karg.unique_id != ioc->unique_id[buffer_type]) {
+		pr_err(MPT3SAS_FMT
+			"%s: unique_id(0x%08x) is not registered\n",
+			ioc->name, __func__, karg.unique_id);
+		return -EINVAL;
+	}
+
+	request_data = ioc->diag_buffer[buffer_type];
+	if (!request_data) {
+		pr_err(MPT3SAS_FMT
+			"%s: doesn't have buffer for buffer_type(0x%02x)\n",
+			ioc->name, __func__, buffer_type);
+		return -ENOMEM;
+	}
+
+	request_size = ioc->diag_buffer_sz[buffer_type];
+
+	if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
+		pr_err(MPT3SAS_FMT "%s: either the starting_offset " \
+		    "or bytes_to_read are not 4 byte aligned\n", ioc->name,
+		    __func__);
+		return -EINVAL;
+	}
+
+	if (karg.starting_offset > request_size)
+		return -EINVAL;
+
+	diag_data = (void *)(request_data + karg.starting_offset);
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: diag_buffer(%p), offset(%d), sz(%d)\n",
+		ioc->name, __func__,
+	    diag_data, karg.starting_offset, karg.bytes_to_read));
+
+	/* Truncate data on requests that are too large */
+	if ((diag_data + karg.bytes_to_read < diag_data) ||
+	    (diag_data + karg.bytes_to_read > request_data + request_size))
+		copy_size = request_size - karg.starting_offset;
+	else
+		copy_size = karg.bytes_to_read;
+
+	if (copy_to_user((void __user *)uarg->diagnostic_data,
+	    diag_data, copy_size)) {
+		pr_err(MPT3SAS_FMT
+			"%s: Unable to write mpt_diag_read_buffer_t data @ %p\n",
+			ioc->name, __func__, diag_data);
+		return -EFAULT;
+	}
+
+	if ((karg.flags & MPT3_FLAGS_REREGISTER) == 0)
+		return 0;
+
+	dctlprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: Reregister buffer_type(0x%02x)\n",
+		ioc->name, __func__, buffer_type));
+	if ((ioc->diag_buffer_status[buffer_type] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
+		dctlprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: buffer_type(0x%02x) is still registered\n",
+			ioc->name, __func__, buffer_type));
+		return 0;
+	}
+	/* Get a free request frame and save the message context.
+	*/
+
+	if (ioc->ctl_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: ctl_cmd in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->ctl_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	rc = 0;
+	ioc->ctl_cmds.status = MPT3_CMD_PENDING;
+	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->ctl_cmds.smid = smid;
+
+	mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
+	mpi_request->BufferType = buffer_type;
+	mpi_request->BufferLength =
+	    cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
+	mpi_request->BufferAddress =
+	    cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
+	for (i = 0; i < MPT3_PRODUCT_SPECIFIC_DWORDS; i++)
+		mpi_request->ProductSpecific[i] =
+			cpu_to_le32(ioc->product_specific[buffer_type][i]);
+	mpi_request->VF_ID = 0; /* TODO */
+	mpi_request->VP_ID = 0;
+
+	init_completion(&ioc->ctl_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
+	    MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
+
+	if (!(ioc->ctl_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n", ioc->name,
+		    __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2DiagBufferPostRequest_t)/4);
+		if (!(ioc->ctl_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+
+	/* process the completed Reply Message Frame */
+	if ((ioc->ctl_cmds.status & MPT3_CMD_REPLY_VALID) == 0) {
+		pr_err(MPT3SAS_FMT "%s: no reply message\n",
+		    ioc->name, __func__);
+		rc = -EFAULT;
+		goto out;
+	}
+
+	mpi_reply = ioc->ctl_cmds.reply;
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
+
+	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
+		ioc->diag_buffer_status[buffer_type] |=
+		    MPT3_DIAG_BUFFER_IS_REGISTERED;
+		dctlprintk(ioc, pr_info(MPT3SAS_FMT "%s: success\n",
+		    ioc->name, __func__));
+	} else {
+		pr_info(MPT3SAS_FMT
+			"%s: ioc_status(0x%04x) log_info(0x%08x)\n",
+			ioc->name, __func__,
+		    ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
+		rc = -EFAULT;
+	}
+
+ issue_host_reset:
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+
+ out:
+
+	ioc->ctl_cmds.status = MPT3_CMD_NOT_USED;
+	return rc;
+}
+
+
+
+#ifdef CONFIG_COMPAT
+/**
+ * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
+ * @ioc: per adapter object
+ * @cmd - ioctl opcode
+ * @arg - (struct mpt3_ioctl_command32)
+ *
+ * MPT3COMMAND32 - Handle 32bit applications running on 64bit os.
+ */
+static long
+_ctl_compat_mpt_command(struct MPT3SAS_ADAPTER *ioc, unsigned cmd,
+	void __user *arg)
+{
+	struct mpt3_ioctl_command32 karg32;
+	struct mpt3_ioctl_command32 __user *uarg;
+	struct mpt3_ioctl_command karg;
+
+	if (_IOC_SIZE(cmd) != sizeof(struct mpt3_ioctl_command32))
+		return -EINVAL;
+
+	uarg = (struct mpt3_ioctl_command32 __user *) arg;
+
+	if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	memset(&karg, 0, sizeof(struct mpt3_ioctl_command));
+	karg.hdr.ioc_number = karg32.hdr.ioc_number;
+	karg.hdr.port_number = karg32.hdr.port_number;
+	karg.hdr.max_data_size = karg32.hdr.max_data_size;
+	karg.timeout = karg32.timeout;
+	karg.max_reply_bytes = karg32.max_reply_bytes;
+	karg.data_in_size = karg32.data_in_size;
+	karg.data_out_size = karg32.data_out_size;
+	karg.max_sense_bytes = karg32.max_sense_bytes;
+	karg.data_sge_offset = karg32.data_sge_offset;
+	karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
+	karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
+	karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
+	karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
+	return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
+}
+#endif
+
+/**
+ * _ctl_ioctl_main - main ioctl entry point
+ * @file - (struct file)
+ * @cmd - ioctl opcode
+ * @arg -
+ * compat - handles 32 bit applications in 64bit os
+ */
+static long
+_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
+	u8 compat)
+{
+	struct MPT3SAS_ADAPTER *ioc;
+	struct mpt3_ioctl_header ioctl_header;
+	enum block_state state;
+	long ret = -EINVAL;
+
+	/* get IOCTL header */
+	if (copy_from_user(&ioctl_header, (char __user *)arg,
+	    sizeof(struct mpt3_ioctl_header))) {
+		pr_err("failure at %s:%d/%s()!\n",
+		    __FILE__, __LINE__, __func__);
+		return -EFAULT;
+	}
+
+	if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc)
+		return -ENODEV;
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery ||
+	    ioc->is_driver_loading)
+		return -EAGAIN;
+
+	state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
+	if (state == NON_BLOCKING) {
+		if (!mutex_trylock(&ioc->ctl_cmds.mutex))
+			return -EAGAIN;
+	} else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex))
+		return -ERESTARTSYS;
+
+
+	switch (cmd) {
+	case MPT3IOCINFO:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_iocinfo))
+			ret = _ctl_getiocinfo(ioc, arg);
+		break;
+#ifdef CONFIG_COMPAT
+	case MPT3COMMAND32:
+#endif
+	case MPT3COMMAND:
+	{
+		struct mpt3_ioctl_command __user *uarg;
+		struct mpt3_ioctl_command karg;
+
+#ifdef CONFIG_COMPAT
+		if (compat) {
+			ret = _ctl_compat_mpt_command(ioc, cmd, arg);
+			break;
+		}
+#endif
+		if (copy_from_user(&karg, arg, sizeof(karg))) {
+			pr_err("failure at %s:%d/%s()!\n",
+			    __FILE__, __LINE__, __func__);
+			ret = -EFAULT;
+			break;
+		}
+
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_command)) {
+			uarg = arg;
+			ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
+		}
+		break;
+	}
+	case MPT3EVENTQUERY:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventquery))
+			ret = _ctl_eventquery(ioc, arg);
+		break;
+	case MPT3EVENTENABLE:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_eventenable))
+			ret = _ctl_eventenable(ioc, arg);
+		break;
+	case MPT3EVENTREPORT:
+		ret = _ctl_eventreport(ioc, arg);
+		break;
+	case MPT3HARDRESET:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_diag_reset))
+			ret = _ctl_do_reset(ioc, arg);
+		break;
+	case MPT3BTDHMAPPING:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_ioctl_btdh_mapping))
+			ret = _ctl_btdh_mapping(ioc, arg);
+		break;
+	case MPT3DIAGREGISTER:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_register))
+			ret = _ctl_diag_register(ioc, arg);
+		break;
+	case MPT3DIAGUNREGISTER:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_unregister))
+			ret = _ctl_diag_unregister(ioc, arg);
+		break;
+	case MPT3DIAGQUERY:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_query))
+			ret = _ctl_diag_query(ioc, arg);
+		break;
+	case MPT3DIAGRELEASE:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_release))
+			ret = _ctl_diag_release(ioc, arg);
+		break;
+	case MPT3DIAGREADBUFFER:
+		if (_IOC_SIZE(cmd) == sizeof(struct mpt3_diag_read_buffer))
+			ret = _ctl_diag_read_buffer(ioc, arg);
+		break;
+	default:
+		dctlprintk(ioc, pr_info(MPT3SAS_FMT
+		    "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
+		break;
+	}
+
+	mutex_unlock(&ioc->ctl_cmds.mutex);
+	return ret;
+}
+
+/**
+ * _ctl_ioctl - main ioctl entry point (unlocked)
+ * @file - (struct file)
+ * @cmd - ioctl opcode
+ * @arg -
+ */
+static long
+_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	long ret;
+
+	ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0);
+	return ret;
+}
+
+#ifdef CONFIG_COMPAT
+/**
+ * _ctl_ioctl_compat - main ioctl entry point (compat)
+ * @file -
+ * @cmd -
+ * @arg -
+ *
+ * This routine handles 32 bit applications in 64bit os.
+ */
+static long
+_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
+{
+	long ret;
+
+	ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1);
+	return ret;
+}
+#endif
+
+/* scsi host attributes */
+/**
+ * _ctl_version_fw_show - firmware version
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
+	    (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
+	    (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
+	    (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
+	    ioc->facts.FWVersion.Word & 0x000000FF);
+}
+static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
+
+/**
+ * _ctl_version_bios_show - bios version
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
+
+	return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
+	    (version & 0xFF000000) >> 24,
+	    (version & 0x00FF0000) >> 16,
+	    (version & 0x0000FF00) >> 8,
+	    version & 0x000000FF);
+}
+static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
+
+/**
+ * _ctl_version_mpi_show - MPI (message passing interface) version
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
+	    ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
+}
+static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
+
+/**
+ * _ctl_version_product_show - product name
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
+}
+static DEVICE_ATTR(version_product, S_IRUGO, _ctl_version_product_show, NULL);
+
+/**
+ * _ctl_version_nvdata_persistent_show - ndvata persistent version
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_version_nvdata_persistent_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%08xh\n",
+	    le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
+}
+static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
+	_ctl_version_nvdata_persistent_show, NULL);
+
+/**
+ * _ctl_version_nvdata_default_show - nvdata default version
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_version_nvdata_default_show(struct device *cdev, struct device_attribute
+	*attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%08xh\n",
+	    le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
+}
+static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
+	_ctl_version_nvdata_default_show, NULL);
+
+/**
+ * _ctl_board_name_show - board name
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
+}
+static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
+
+/**
+ * _ctl_board_assembly_show - board assembly name
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
+}
+static DEVICE_ATTR(board_assembly, S_IRUGO, _ctl_board_assembly_show, NULL);
+
+/**
+ * _ctl_board_tracer_show - board tracer number
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
+}
+static DEVICE_ATTR(board_tracer, S_IRUGO, _ctl_board_tracer_show, NULL);
+
+/**
+ * _ctl_io_delay_show - io missing delay
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is for firmware implemention for deboucing device
+ * removal events.
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
+}
+static DEVICE_ATTR(io_delay, S_IRUGO, _ctl_io_delay_show, NULL);
+
+/**
+ * _ctl_device_delay_show - device missing delay
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is for firmware implemention for deboucing device
+ * removal events.
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
+}
+static DEVICE_ATTR(device_delay, S_IRUGO, _ctl_device_delay_show, NULL);
+
+/**
+ * _ctl_fw_queue_depth_show - global credits
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is firmware queue depth limit
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
+}
+static DEVICE_ATTR(fw_queue_depth, S_IRUGO, _ctl_fw_queue_depth_show, NULL);
+
+/**
+ * _ctl_sas_address_show - sas address
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is the controller sas address
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
+	    (unsigned long long)ioc->sas_hba.sas_address);
+}
+static DEVICE_ATTR(host_sas_address, S_IRUGO,
+	_ctl_host_sas_address_show, NULL);
+
+/**
+ * _ctl_logging_level_show - logging level
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
+}
+static ssize_t
+_ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	int val = 0;
+
+	if (sscanf(buf, "%x", &val) != 1)
+		return -EINVAL;
+
+	ioc->logging_level = val;
+	pr_info(MPT3SAS_FMT "logging_level=%08xh\n", ioc->name,
+	    ioc->logging_level);
+	return strlen(buf);
+}
+static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR, _ctl_logging_level_show,
+	_ctl_logging_level_store);
+
+/**
+ * _ctl_fwfault_debug_show - show/store fwfault_debug
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * mpt3sas_fwfault_debug is command line option
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_fwfault_debug_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
+}
+static ssize_t
+_ctl_fwfault_debug_store(struct device *cdev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	int val = 0;
+
+	if (sscanf(buf, "%d", &val) != 1)
+		return -EINVAL;
+
+	ioc->fwfault_debug = val;
+	pr_info(MPT3SAS_FMT "fwfault_debug=%d\n", ioc->name,
+	    ioc->fwfault_debug);
+	return strlen(buf);
+}
+static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
+	_ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
+
+/**
+ * _ctl_ioc_reset_count_show - ioc reset count
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is firmware queue depth limit
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", ioc->ioc_reset_count);
+}
+static DEVICE_ATTR(ioc_reset_count, S_IRUGO, _ctl_ioc_reset_count_show, NULL);
+
+/**
+ * _ctl_ioc_reply_queue_count_show - number of reply queues
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is number of reply queues
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_ioc_reply_queue_count_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	u8 reply_queue_count;
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	if ((ioc->facts.IOCCapabilities &
+	    MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
+		reply_queue_count = ioc->reply_queue_count;
+	else
+		reply_queue_count = 1;
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
+}
+static DEVICE_ATTR(reply_queue_count, S_IRUGO, _ctl_ioc_reply_queue_count_show,
+	NULL);
+
+struct DIAG_BUFFER_START {
+	__le32	Size;
+	__le32	DiagVersion;
+	u8	BufferType;
+	u8	Reserved[3];
+	__le32	Reserved1;
+	__le32	Reserved2;
+	__le32	Reserved3;
+};
+
+/**
+ * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_host_trace_buffer_size_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	u32 size = 0;
+	struct DIAG_BUFFER_START *request_data;
+
+	if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
+		pr_err(MPT3SAS_FMT
+			"%s: host_trace_buffer is not registered\n",
+			ioc->name, __func__);
+		return 0;
+	}
+
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		pr_err(MPT3SAS_FMT
+			"%s: host_trace_buffer is not registered\n",
+			ioc->name, __func__);
+		return 0;
+	}
+
+	request_data = (struct DIAG_BUFFER_START *)
+	    ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
+	if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
+	    le32_to_cpu(request_data->DiagVersion) == 0x01000000 ||
+	    le32_to_cpu(request_data->DiagVersion) == 0x01010000) &&
+	    le32_to_cpu(request_data->Reserved3) == 0x4742444c)
+		size = le32_to_cpu(request_data->Size);
+
+	ioc->ring_buffer_sz = size;
+	return snprintf(buf, PAGE_SIZE, "%d\n", size);
+}
+static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
+	_ctl_host_trace_buffer_size_show, NULL);
+
+/**
+ * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ *
+ * You will only be able to read 4k bytes of ring buffer at a time.
+ * In order to read beyond 4k bytes, you will have to write out the
+ * offset to the same attribute, it will move the pointer.
+ */
+static ssize_t
+_ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
+	char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	void *request_data;
+	u32 size;
+
+	if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
+		pr_err(MPT3SAS_FMT
+			"%s: host_trace_buffer is not registered\n",
+			ioc->name, __func__);
+		return 0;
+	}
+
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		pr_err(MPT3SAS_FMT
+			"%s: host_trace_buffer is not registered\n",
+			ioc->name, __func__);
+		return 0;
+	}
+
+	if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
+		return 0;
+
+	size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
+	size = (size >= PAGE_SIZE) ? (PAGE_SIZE - 1) : size;
+	request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
+	memcpy(buf, request_data, size);
+	return size;
+}
+
+static ssize_t
+_ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	int val = 0;
+
+	if (sscanf(buf, "%d", &val) != 1)
+		return -EINVAL;
+
+	ioc->ring_buffer_offset = val;
+	return strlen(buf);
+}
+static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
+	_ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
+
+
+/*****************************************/
+
+/**
+ * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ *
+ * This is a mechnism to post/release host_trace_buffers
+ */
+static ssize_t
+_ctl_host_trace_buffer_enable_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
+	   ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0))
+		return snprintf(buf, PAGE_SIZE, "off\n");
+	else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED))
+		return snprintf(buf, PAGE_SIZE, "release\n");
+	else
+		return snprintf(buf, PAGE_SIZE, "post\n");
+}
+
+static ssize_t
+_ctl_host_trace_buffer_enable_store(struct device *cdev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	char str[10] = "";
+	struct mpt3_diag_register diag_register;
+	u8 issue_reset = 0;
+
+	/* don't allow post/release occurr while recovery is active */
+	if (ioc->shost_recovery || ioc->remove_host ||
+	    ioc->pci_error_recovery || ioc->is_driver_loading)
+		return -EBUSY;
+
+	if (sscanf(buf, "%9s", str) != 1)
+		return -EINVAL;
+
+	if (!strcmp(str, "post")) {
+		/* exit out if host buffers are already posted */
+		if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
+		    (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+		    MPT3_DIAG_BUFFER_IS_REGISTERED) &&
+		    ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+		    MPT3_DIAG_BUFFER_IS_RELEASED) == 0))
+			goto out;
+		memset(&diag_register, 0, sizeof(struct mpt3_diag_register));
+		pr_info(MPT3SAS_FMT "posting host trace buffers\n",
+		    ioc->name);
+		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
+		diag_register.requested_buffer_size = (1024 * 1024);
+		diag_register.unique_id = 0x7075900;
+		ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
+		_ctl_diag_register_2(ioc,  &diag_register);
+	} else if (!strcmp(str, "release")) {
+		/* exit out if host buffers are already released */
+		if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
+			goto out;
+		if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+		    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0)
+			goto out;
+		if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+		    MPT3_DIAG_BUFFER_IS_RELEASED))
+			goto out;
+		pr_info(MPT3SAS_FMT "releasing host trace buffer\n",
+		    ioc->name);
+		mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
+		    &issue_reset);
+	}
+
+ out:
+	return strlen(buf);
+}
+static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
+	_ctl_host_trace_buffer_enable_show,
+	_ctl_host_trace_buffer_enable_store);
+
+/*********** diagnostic trigger suppport *********************************/
+
+/**
+ * _ctl_diag_trigger_master_show - show the diag_trigger_master attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_master_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t rc;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	rc = sizeof(struct SL_WH_MASTER_TRIGGER_T);
+	memcpy(buf, &ioc->diag_trigger_master, rc);
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return rc;
+}
+
+/**
+ * _ctl_diag_trigger_master_store - store the diag_trigger_master attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_master_store(struct device *cdev,
+	struct device_attribute *attr, const char *buf, size_t count)
+
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t rc;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	rc = min(sizeof(struct SL_WH_MASTER_TRIGGER_T), count);
+	memset(&ioc->diag_trigger_master, 0,
+	    sizeof(struct SL_WH_MASTER_TRIGGER_T));
+	memcpy(&ioc->diag_trigger_master, buf, rc);
+	ioc->diag_trigger_master.MasterData |=
+	    (MASTER_TRIGGER_FW_FAULT + MASTER_TRIGGER_ADAPTER_RESET);
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return rc;
+}
+static DEVICE_ATTR(diag_trigger_master, S_IRUGO | S_IWUSR,
+	_ctl_diag_trigger_master_show, _ctl_diag_trigger_master_store);
+
+
+/**
+ * _ctl_diag_trigger_event_show - show the diag_trigger_event attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_event_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t rc;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	rc = sizeof(struct SL_WH_EVENT_TRIGGERS_T);
+	memcpy(buf, &ioc->diag_trigger_event, rc);
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return rc;
+}
+
+/**
+ * _ctl_diag_trigger_event_store - store the diag_trigger_event attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_event_store(struct device *cdev,
+	struct device_attribute *attr, const char *buf, size_t count)
+
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t sz;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	sz = min(sizeof(struct SL_WH_EVENT_TRIGGERS_T), count);
+	memset(&ioc->diag_trigger_event, 0,
+	    sizeof(struct SL_WH_EVENT_TRIGGERS_T));
+	memcpy(&ioc->diag_trigger_event, buf, sz);
+	if (ioc->diag_trigger_event.ValidEntries > NUM_VALID_ENTRIES)
+		ioc->diag_trigger_event.ValidEntries = NUM_VALID_ENTRIES;
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return sz;
+}
+static DEVICE_ATTR(diag_trigger_event, S_IRUGO | S_IWUSR,
+	_ctl_diag_trigger_event_show, _ctl_diag_trigger_event_store);
+
+
+/**
+ * _ctl_diag_trigger_scsi_show - show the diag_trigger_scsi attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_scsi_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t rc;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	rc = sizeof(struct SL_WH_SCSI_TRIGGERS_T);
+	memcpy(buf, &ioc->diag_trigger_scsi, rc);
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return rc;
+}
+
+/**
+ * _ctl_diag_trigger_scsi_store - store the diag_trigger_scsi attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_scsi_store(struct device *cdev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t sz;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	sz = min(sizeof(struct SL_WH_SCSI_TRIGGERS_T), count);
+	memset(&ioc->diag_trigger_scsi, 0,
+	    sizeof(struct SL_WH_EVENT_TRIGGERS_T));
+	memcpy(&ioc->diag_trigger_scsi, buf, sz);
+	if (ioc->diag_trigger_scsi.ValidEntries > NUM_VALID_ENTRIES)
+		ioc->diag_trigger_scsi.ValidEntries = NUM_VALID_ENTRIES;
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return sz;
+}
+static DEVICE_ATTR(diag_trigger_scsi, S_IRUGO | S_IWUSR,
+	_ctl_diag_trigger_scsi_show, _ctl_diag_trigger_scsi_store);
+
+
+/**
+ * _ctl_diag_trigger_scsi_show - show the diag_trigger_mpi attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_mpi_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t rc;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	rc = sizeof(struct SL_WH_MPI_TRIGGERS_T);
+	memcpy(buf, &ioc->diag_trigger_mpi, rc);
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return rc;
+}
+
+/**
+ * _ctl_diag_trigger_mpi_store - store the diag_trigger_mpi attribute
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * A sysfs 'read/write' shost attribute.
+ */
+static ssize_t
+_ctl_diag_trigger_mpi_store(struct device *cdev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	unsigned long flags;
+	ssize_t sz;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	sz = min(sizeof(struct SL_WH_MPI_TRIGGERS_T), count);
+	memset(&ioc->diag_trigger_mpi, 0,
+	    sizeof(struct SL_WH_EVENT_TRIGGERS_T));
+	memcpy(&ioc->diag_trigger_mpi, buf, sz);
+	if (ioc->diag_trigger_mpi.ValidEntries > NUM_VALID_ENTRIES)
+		ioc->diag_trigger_mpi.ValidEntries = NUM_VALID_ENTRIES;
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+	return sz;
+}
+
+static DEVICE_ATTR(diag_trigger_mpi, S_IRUGO | S_IWUSR,
+	_ctl_diag_trigger_mpi_show, _ctl_diag_trigger_mpi_store);
+
+/*********** diagnostic trigger suppport *** END ****************************/
+
+
+
+/*****************************************/
+
+struct device_attribute *mpt3sas_host_attrs[] = {
+	&dev_attr_version_fw,
+	&dev_attr_version_bios,
+	&dev_attr_version_mpi,
+	&dev_attr_version_product,
+	&dev_attr_version_nvdata_persistent,
+	&dev_attr_version_nvdata_default,
+	&dev_attr_board_name,
+	&dev_attr_board_assembly,
+	&dev_attr_board_tracer,
+	&dev_attr_io_delay,
+	&dev_attr_device_delay,
+	&dev_attr_logging_level,
+	&dev_attr_fwfault_debug,
+	&dev_attr_fw_queue_depth,
+	&dev_attr_host_sas_address,
+	&dev_attr_ioc_reset_count,
+	&dev_attr_host_trace_buffer_size,
+	&dev_attr_host_trace_buffer,
+	&dev_attr_host_trace_buffer_enable,
+	&dev_attr_reply_queue_count,
+	&dev_attr_diag_trigger_master,
+	&dev_attr_diag_trigger_event,
+	&dev_attr_diag_trigger_scsi,
+	&dev_attr_diag_trigger_mpi,
+	NULL,
+};
+
+/* device attributes */
+
+/**
+ * _ctl_device_sas_address_show - sas address
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is the sas address for the target
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
+
+	return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
+	    (unsigned long long)sas_device_priv_data->sas_target->sas_address);
+}
+static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
+
+/**
+ * _ctl_device_handle_show - device handle
+ * @cdev - pointer to embedded class device
+ * @buf - the buffer returned
+ *
+ * This is the firmware assigned device handle
+ *
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t
+_ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct MPT3SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
+
+	return snprintf(buf, PAGE_SIZE, "0x%04x\n",
+	    sas_device_priv_data->sas_target->handle);
+}
+static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
+
+struct device_attribute *mpt3sas_dev_attrs[] = {
+	&dev_attr_sas_address,
+	&dev_attr_sas_device_handle,
+	NULL,
+};
+
+static const struct file_operations ctl_fops = {
+	.owner = THIS_MODULE,
+	.unlocked_ioctl = _ctl_ioctl,
+	.release = _ctl_release,
+	.poll = _ctl_poll,
+	.fasync = _ctl_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = _ctl_ioctl_compat,
+#endif
+};
+
+static struct miscdevice ctl_dev = {
+	.minor  = MPT3SAS_MINOR,
+	.name   = MPT3SAS_DEV_NAME,
+	.fops   = &ctl_fops,
+};
+
+/**
+ * mpt3sas_ctl_init - main entry point for ctl.
+ *
+ */
+void
+mpt3sas_ctl_init(void)
+{
+	async_queue = NULL;
+	if (misc_register(&ctl_dev) < 0)
+		pr_err("%s can't register misc device [minor=%d]\n",
+		    MPT3SAS_DRIVER_NAME, MPT3SAS_MINOR);
+
+	init_waitqueue_head(&ctl_poll_wait);
+}
+
+/**
+ * mpt3sas_ctl_exit - exit point for ctl
+ *
+ */
+void
+mpt3sas_ctl_exit(void)
+{
+	struct MPT3SAS_ADAPTER *ioc;
+	int i;
+
+	list_for_each_entry(ioc, &mpt3sas_ioc_list, list) {
+
+		/* free memory associated to diag buffers */
+		for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
+			if (!ioc->diag_buffer[i])
+				continue;
+			if (!(ioc->diag_buffer_status[i] &
+			    MPT3_DIAG_BUFFER_IS_REGISTERED))
+				continue;
+			if ((ioc->diag_buffer_status[i] &
+			    MPT3_DIAG_BUFFER_IS_RELEASED))
+				continue;
+			pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
+			ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
+			ioc->diag_buffer[i] = NULL;
+			ioc->diag_buffer_status[i] = 0;
+		}
+
+		kfree(ioc->event_log);
+	}
+	misc_deregister(&ctl_dev);
+}
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.h b/drivers/scsi/mpt3sas/mpt3sas_ctl.h
new file mode 100644
index 000000000000..bd89f4f00550
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.h
@@ -0,0 +1,418 @@
+/*
+ * Management Module Support for MPT (Message Passing Technology) based
+ * controllers
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_ctl.h
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#ifndef MPT3SAS_CTL_H_INCLUDED
+#define MPT3SAS_CTL_H_INCLUDED
+
+#ifdef __KERNEL__
+#include <linux/miscdevice.h>
+#endif
+
+
+#ifndef MPT3SAS_MINOR
+#define MPT3SAS_MINOR		(MPT_MINOR + 2)
+#endif
+#define MPT3SAS_DEV_NAME	"mpt3ctl"
+#define MPT3_MAGIC_NUMBER	'L'
+#define MPT3_IOCTL_DEFAULT_TIMEOUT (10) /* in seconds */
+
+/**
+ * IOCTL opcodes
+ */
+#define MPT3IOCINFO	_IOWR(MPT3_MAGIC_NUMBER, 17, \
+	struct mpt3_ioctl_iocinfo)
+#define MPT3COMMAND	_IOWR(MPT3_MAGIC_NUMBER, 20, \
+	struct mpt3_ioctl_command)
+#ifdef CONFIG_COMPAT
+#define MPT3COMMAND32	_IOWR(MPT3_MAGIC_NUMBER, 20, \
+	struct mpt3_ioctl_command32)
+#endif
+#define MPT3EVENTQUERY	_IOWR(MPT3_MAGIC_NUMBER, 21, \
+	struct mpt3_ioctl_eventquery)
+#define MPT3EVENTENABLE	_IOWR(MPT3_MAGIC_NUMBER, 22, \
+	struct mpt3_ioctl_eventenable)
+#define MPT3EVENTREPORT	_IOWR(MPT3_MAGIC_NUMBER, 23, \
+	struct mpt3_ioctl_eventreport)
+#define MPT3HARDRESET	_IOWR(MPT3_MAGIC_NUMBER, 24, \
+	struct mpt3_ioctl_diag_reset)
+#define MPT3BTDHMAPPING	_IOWR(MPT3_MAGIC_NUMBER, 31, \
+	struct mpt3_ioctl_btdh_mapping)
+
+/* diag buffer support */
+#define MPT3DIAGREGISTER _IOWR(MPT3_MAGIC_NUMBER, 26, \
+	struct mpt3_diag_register)
+#define MPT3DIAGRELEASE	_IOWR(MPT3_MAGIC_NUMBER, 27, \
+	struct mpt3_diag_release)
+#define MPT3DIAGUNREGISTER _IOWR(MPT3_MAGIC_NUMBER, 28, \
+	struct mpt3_diag_unregister)
+#define MPT3DIAGQUERY	_IOWR(MPT3_MAGIC_NUMBER, 29, \
+	struct mpt3_diag_query)
+#define MPT3DIAGREADBUFFER _IOWR(MPT3_MAGIC_NUMBER, 30, \
+	struct mpt3_diag_read_buffer)
+
+/**
+ * struct mpt3_ioctl_header - main header structure
+ * @ioc_number -  IOC unit number
+ * @port_number - IOC port number
+ * @max_data_size - maximum number bytes to transfer on read
+ */
+struct mpt3_ioctl_header {
+	uint32_t ioc_number;
+	uint32_t port_number;
+	uint32_t max_data_size;
+};
+
+/**
+ * struct mpt3_ioctl_diag_reset - diagnostic reset
+ * @hdr - generic header
+ */
+struct mpt3_ioctl_diag_reset {
+	struct mpt3_ioctl_header hdr;
+};
+
+
+/**
+ * struct mpt3_ioctl_pci_info - pci device info
+ * @device - pci device id
+ * @function - pci function id
+ * @bus - pci bus id
+ * @segment_id - pci segment id
+ */
+struct mpt3_ioctl_pci_info {
+	union {
+		struct {
+			uint32_t device:5;
+			uint32_t function:3;
+			uint32_t bus:24;
+		} bits;
+		uint32_t  word;
+	} u;
+	uint32_t segment_id;
+};
+
+
+#define MPT2_IOCTL_INTERFACE_SCSI	(0x00)
+#define MPT2_IOCTL_INTERFACE_FC		(0x01)
+#define MPT2_IOCTL_INTERFACE_FC_IP	(0x02)
+#define MPT2_IOCTL_INTERFACE_SAS	(0x03)
+#define MPT2_IOCTL_INTERFACE_SAS2	(0x04)
+#define MPT3_IOCTL_INTERFACE_SAS3	(0x06)
+#define MPT2_IOCTL_VERSION_LENGTH	(32)
+
+/**
+ * struct mpt3_ioctl_iocinfo - generic controller info
+ * @hdr - generic header
+ * @adapter_type - type of adapter (spi, fc, sas)
+ * @port_number - port number
+ * @pci_id - PCI Id
+ * @hw_rev - hardware revision
+ * @sub_system_device - PCI subsystem Device ID
+ * @sub_system_vendor - PCI subsystem Vendor ID
+ * @rsvd0 - reserved
+ * @firmware_version - firmware version
+ * @bios_version - BIOS version
+ * @driver_version - driver version - 32 ASCII characters
+ * @rsvd1 - reserved
+ * @scsi_id - scsi id of adapter 0
+ * @rsvd2 - reserved
+ * @pci_information - pci info (2nd revision)
+ */
+struct mpt3_ioctl_iocinfo {
+	struct mpt3_ioctl_header hdr;
+	uint32_t adapter_type;
+	uint32_t port_number;
+	uint32_t pci_id;
+	uint32_t hw_rev;
+	uint32_t subsystem_device;
+	uint32_t subsystem_vendor;
+	uint32_t rsvd0;
+	uint32_t firmware_version;
+	uint32_t bios_version;
+	uint8_t driver_version[MPT2_IOCTL_VERSION_LENGTH];
+	uint8_t rsvd1;
+	uint8_t scsi_id;
+	uint16_t rsvd2;
+	struct mpt3_ioctl_pci_info pci_information;
+};
+
+
+/* number of event log entries */
+#define MPT3SAS_CTL_EVENT_LOG_SIZE (50)
+
+/**
+ * struct mpt3_ioctl_eventquery - query event count and type
+ * @hdr - generic header
+ * @event_entries - number of events returned by get_event_report
+ * @rsvd - reserved
+ * @event_types - type of events currently being captured
+ */
+struct mpt3_ioctl_eventquery {
+	struct mpt3_ioctl_header hdr;
+	uint16_t event_entries;
+	uint16_t rsvd;
+	uint32_t event_types[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];
+};
+
+/**
+ * struct mpt3_ioctl_eventenable - enable/disable event capturing
+ * @hdr - generic header
+ * @event_types - toggle off/on type of events to be captured
+ */
+struct mpt3_ioctl_eventenable {
+	struct mpt3_ioctl_header hdr;
+	uint32_t event_types[4];
+};
+
+#define MPT3_EVENT_DATA_SIZE (192)
+/**
+ * struct MPT3_IOCTL_EVENTS -
+ * @event - the event that was reported
+ * @context - unique value for each event assigned by driver
+ * @data - event data returned in fw reply message
+ */
+struct MPT3_IOCTL_EVENTS {
+	uint32_t event;
+	uint32_t context;
+	uint8_t data[MPT3_EVENT_DATA_SIZE];
+};
+
+/**
+ * struct mpt3_ioctl_eventreport - returing event log
+ * @hdr - generic header
+ * @event_data - (see struct MPT3_IOCTL_EVENTS)
+ */
+struct mpt3_ioctl_eventreport {
+	struct mpt3_ioctl_header hdr;
+	struct MPT3_IOCTL_EVENTS event_data[1];
+};
+
+/**
+ * struct mpt3_ioctl_command - generic mpt firmware passthru ioctl
+ * @hdr - generic header
+ * @timeout - command timeout in seconds. (if zero then use driver default
+ *  value).
+ * @reply_frame_buf_ptr - reply location
+ * @data_in_buf_ptr - destination for read
+ * @data_out_buf_ptr - data source for write
+ * @sense_data_ptr - sense data location
+ * @max_reply_bytes - maximum number of reply bytes to be sent to app.
+ * @data_in_size - number bytes for data transfer in (read)
+ * @data_out_size - number bytes for data transfer out (write)
+ * @max_sense_bytes - maximum number of bytes for auto sense buffers
+ * @data_sge_offset - offset in words from the start of the request message to
+ * the first SGL
+ * @mf[1];
+ */
+struct mpt3_ioctl_command {
+	struct mpt3_ioctl_header hdr;
+	uint32_t timeout;
+	void __user *reply_frame_buf_ptr;
+	void __user *data_in_buf_ptr;
+	void __user *data_out_buf_ptr;
+	void __user *sense_data_ptr;
+	uint32_t max_reply_bytes;
+	uint32_t data_in_size;
+	uint32_t data_out_size;
+	uint32_t max_sense_bytes;
+	uint32_t data_sge_offset;
+	uint8_t mf[1];
+};
+
+#ifdef CONFIG_COMPAT
+struct mpt3_ioctl_command32 {
+	struct mpt3_ioctl_header hdr;
+	uint32_t timeout;
+	uint32_t reply_frame_buf_ptr;
+	uint32_t data_in_buf_ptr;
+	uint32_t data_out_buf_ptr;
+	uint32_t sense_data_ptr;
+	uint32_t max_reply_bytes;
+	uint32_t data_in_size;
+	uint32_t data_out_size;
+	uint32_t max_sense_bytes;
+	uint32_t data_sge_offset;
+	uint8_t mf[1];
+};
+#endif
+
+/**
+ * struct mpt3_ioctl_btdh_mapping - mapping info
+ * @hdr - generic header
+ * @id - target device identification number
+ * @bus - SCSI bus number that the target device exists on
+ * @handle - device handle for the target device
+ * @rsvd - reserved
+ *
+ * To obtain a bus/id the application sets
+ * handle to valid handle, and bus/id to 0xFFFF.
+ *
+ * To obtain the device handle the application sets
+ * bus/id valid value, and the handle to 0xFFFF.
+ */
+struct mpt3_ioctl_btdh_mapping {
+	struct mpt3_ioctl_header hdr;
+	uint32_t id;
+	uint32_t bus;
+	uint16_t handle;
+	uint16_t rsvd;
+};
+
+
+
+/* application flags for mpt3_diag_register, mpt3_diag_query */
+#define MPT3_APP_FLAGS_APP_OWNED	(0x0001)
+#define MPT3_APP_FLAGS_BUFFER_VALID	(0x0002)
+#define MPT3_APP_FLAGS_FW_BUFFER_ACCESS	(0x0004)
+
+/* flags for mpt3_diag_read_buffer */
+#define MPT3_FLAGS_REREGISTER		(0x0001)
+
+#define MPT3_PRODUCT_SPECIFIC_DWORDS		23
+
+/**
+ * struct mpt3_diag_register - application register with driver
+ * @hdr - generic header
+ * @reserved -
+ * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
+ * @application_flags - misc flags
+ * @diagnostic_flags - specifies flags affecting command processing
+ * @product_specific - product specific information
+ * @requested_buffer_size - buffers size in bytes
+ * @unique_id - tag specified by application that is used to signal ownership
+ *  of the buffer.
+ *
+ * This will allow the driver to setup any required buffers that will be
+ * needed by firmware to communicate with the driver.
+ */
+struct mpt3_diag_register {
+	struct mpt3_ioctl_header hdr;
+	uint8_t reserved;
+	uint8_t buffer_type;
+	uint16_t application_flags;
+	uint32_t diagnostic_flags;
+	uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS];
+	uint32_t requested_buffer_size;
+	uint32_t unique_id;
+};
+
+/**
+ * struct mpt3_diag_unregister - application unregister with driver
+ * @hdr - generic header
+ * @unique_id - tag uniquely identifies the buffer to be unregistered
+ *
+ * This will allow the driver to cleanup any memory allocated for diag
+ * messages and to free up any resources.
+ */
+struct mpt3_diag_unregister {
+	struct mpt3_ioctl_header hdr;
+	uint32_t unique_id;
+};
+
+/**
+ * struct mpt3_diag_query - query relevant info associated with diag buffers
+ * @hdr - generic header
+ * @reserved -
+ * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
+ * @application_flags - misc flags
+ * @diagnostic_flags - specifies flags affecting command processing
+ * @product_specific - product specific information
+ * @total_buffer_size - diag buffer size in bytes
+ * @driver_added_buffer_size - size of extra space appended to end of buffer
+ * @unique_id - unique id associated with this buffer.
+ *
+ * The application will send only buffer_type and unique_id.  Driver will
+ * inspect unique_id first, if valid, fill in all the info.  If unique_id is
+ * 0x00, the driver will return info specified by Buffer Type.
+ */
+struct mpt3_diag_query {
+	struct mpt3_ioctl_header hdr;
+	uint8_t reserved;
+	uint8_t buffer_type;
+	uint16_t application_flags;
+	uint32_t diagnostic_flags;
+	uint32_t product_specific[MPT3_PRODUCT_SPECIFIC_DWORDS];
+	uint32_t total_buffer_size;
+	uint32_t driver_added_buffer_size;
+	uint32_t unique_id;
+};
+
+/**
+ * struct mpt3_diag_release -  request to send Diag Release Message to firmware
+ * @hdr - generic header
+ * @unique_id - tag uniquely identifies the buffer to be released
+ *
+ * This allows ownership of the specified buffer to returned to the driver,
+ * allowing an application to read the buffer without fear that firmware is
+ * overwritting information in the buffer.
+ */
+struct mpt3_diag_release {
+	struct mpt3_ioctl_header hdr;
+	uint32_t unique_id;
+};
+
+/**
+ * struct mpt3_diag_read_buffer - request for copy of the diag buffer
+ * @hdr - generic header
+ * @status -
+ * @reserved -
+ * @flags - misc flags
+ * @starting_offset - starting offset within drivers buffer where to start
+ *  reading data at into the specified application buffer
+ * @bytes_to_read - number of bytes to copy from the drivers buffer into the
+ *  application buffer starting at starting_offset.
+ * @unique_id - unique id associated with this buffer.
+ * @diagnostic_data - data payload
+ */
+struct mpt3_diag_read_buffer {
+	struct mpt3_ioctl_header hdr;
+	uint8_t status;
+	uint8_t reserved;
+	uint16_t flags;
+	uint32_t starting_offset;
+	uint32_t bytes_to_read;
+	uint32_t unique_id;
+	uint32_t diagnostic_data[1];
+};
+
+#endif /* MPT3SAS_CTL_H_INCLUDED */
diff --git a/drivers/scsi/mpt3sas/mpt3sas_debug.h b/drivers/scsi/mpt3sas/mpt3sas_debug.h
new file mode 100644
index 000000000000..35405e7044f8
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_debug.h
@@ -0,0 +1,219 @@
+/*
+ * Logging Support for MPT (Message Passing Technology) based controllers
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_debug.c
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#ifndef MPT3SAS_DEBUG_H_INCLUDED
+#define MPT3SAS_DEBUG_H_INCLUDED
+
+#define MPT_DEBUG			0x00000001
+#define MPT_DEBUG_MSG_FRAME		0x00000002
+#define MPT_DEBUG_SG			0x00000004
+#define MPT_DEBUG_EVENTS		0x00000008
+#define MPT_DEBUG_EVENT_WORK_TASK	0x00000010
+#define MPT_DEBUG_INIT			0x00000020
+#define MPT_DEBUG_EXIT			0x00000040
+#define MPT_DEBUG_FAIL			0x00000080
+#define MPT_DEBUG_TM			0x00000100
+#define MPT_DEBUG_REPLY		0x00000200
+#define MPT_DEBUG_HANDSHAKE		0x00000400
+#define MPT_DEBUG_CONFIG		0x00000800
+#define MPT_DEBUG_DL			0x00001000
+#define MPT_DEBUG_RESET		0x00002000
+#define MPT_DEBUG_SCSI			0x00004000
+#define MPT_DEBUG_IOCTL		0x00008000
+#define MPT_DEBUG_SAS			0x00020000
+#define MPT_DEBUG_TRANSPORT		0x00040000
+#define MPT_DEBUG_TASK_SET_FULL	0x00080000
+
+#define MPT_DEBUG_TRIGGER_DIAG		0x00200000
+
+
+/*
+ * CONFIG_SCSI_MPT3SAS_LOGGING - enabled in Kconfig
+ */
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+#define MPT_CHECK_LOGGING(IOC, CMD, BITS)			\
+{								\
+	if (IOC->logging_level & BITS)				\
+		CMD;						\
+}
+#else
+#define MPT_CHECK_LOGGING(IOC, CMD, BITS)
+#endif /* CONFIG_SCSI_MPT3SAS_LOGGING */
+
+
+/*
+ * debug macros
+ */
+
+#define dprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG)
+
+#define dsgprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SG)
+
+#define devtprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENTS)
+
+#define dewtprintk(IOC, CMD)		\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENT_WORK_TASK)
+
+#define dinitprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_INIT)
+
+#define dexitprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EXIT)
+
+#define dfailprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_FAIL)
+
+#define dtmprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TM)
+
+#define dreplyprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_REPLY)
+
+#define dhsprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_HANDSHAKE)
+
+#define dcprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CONFIG)
+
+#define ddlprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_DL)
+
+#define drsprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_RESET)
+
+#define dsprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SCSI)
+
+#define dctlprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_IOCTL)
+
+#define dsasprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS)
+
+#define dsastransport(IOC, CMD)		\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS_WIDE)
+
+#define dmfprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_MSG_FRAME)
+
+#define dtsfprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TASK_SET_FULL)
+
+#define dtransportprintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TRANSPORT)
+
+#define dTriggerDiagPrintk(IOC, CMD)			\
+	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TRIGGER_DIAG)
+
+
+
+/* inline functions for dumping debug data*/
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _debug_dump_mf - print message frame contents
+ * @mpi_request: pointer to message frame
+ * @sz: number of dwords
+ */
+static inline void
+_debug_dump_mf(void *mpi_request, int sz)
+{
+	int i;
+	__le32 *mfp = (__le32 *)mpi_request;
+
+	pr_info("mf:\n\t");
+	for (i = 0; i < sz; i++) {
+		if (i && ((i % 8) == 0))
+			pr_info("\n\t");
+		pr_info("%08x ", le32_to_cpu(mfp[i]));
+	}
+	pr_info("\n");
+}
+/**
+ * _debug_dump_reply - print message frame contents
+ * @mpi_request: pointer to message frame
+ * @sz: number of dwords
+ */
+static inline void
+_debug_dump_reply(void *mpi_request, int sz)
+{
+	int i;
+	__le32 *mfp = (__le32 *)mpi_request;
+
+	pr_info("reply:\n\t");
+	for (i = 0; i < sz; i++) {
+		if (i && ((i % 8) == 0))
+			pr_info("\n\t");
+		pr_info("%08x ", le32_to_cpu(mfp[i]));
+	}
+	pr_info("\n");
+}
+/**
+ * _debug_dump_config - print config page contents
+ * @mpi_request: pointer to message frame
+ * @sz: number of dwords
+ */
+static inline void
+_debug_dump_config(void *mpi_request, int sz)
+{
+	int i;
+	__le32 *mfp = (__le32 *)mpi_request;
+
+	pr_info("config:\n\t");
+	for (i = 0; i < sz; i++) {
+		if (i && ((i % 8) == 0))
+			pr_info("\n\t");
+		pr_info("%08x ", le32_to_cpu(mfp[i]));
+	}
+	pr_info("\n");
+}
+#else
+#define _debug_dump_mf(mpi_request, sz)
+#define _debug_dump_reply(mpi_request, sz)
+#define _debug_dump_config(mpi_request, sz)
+#endif /* CONFIG_SCSI_MPT3SAS_LOGGING */
+
+#endif /* MPT3SAS_DEBUG_H_INCLUDED */
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
new file mode 100644
index 000000000000..05f80450ac7e
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -0,0 +1,8167 @@
+/*
+ * Scsi Host Layer for MPT (Message Passing Technology) based controllers
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_scsih.c
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/blkdev.h>
+#include <linux/sched.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/aer.h>
+#include <linux/raid_class.h>
+
+#include "mpt3sas_base.h"
+
+MODULE_AUTHOR(MPT3SAS_AUTHOR);
+MODULE_DESCRIPTION(MPT3SAS_DESCRIPTION);
+MODULE_LICENSE("GPL");
+MODULE_VERSION(MPT3SAS_DRIVER_VERSION);
+
+#define RAID_CHANNEL 1
+/* forward proto's */
+static void _scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_node *sas_expander);
+static void _firmware_event_work(struct work_struct *work);
+
+static void _scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_device *sas_device);
+static int _scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	u8 retry_count, u8 is_pd);
+
+static u8 _scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid);
+
+static void _scsih_scan_start(struct Scsi_Host *shost);
+static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time);
+
+/* global parameters */
+LIST_HEAD(mpt3sas_ioc_list);
+
+/* local parameters */
+static u8 scsi_io_cb_idx = -1;
+static u8 tm_cb_idx = -1;
+static u8 ctl_cb_idx = -1;
+static u8 base_cb_idx = -1;
+static u8 port_enable_cb_idx = -1;
+static u8 transport_cb_idx = -1;
+static u8 scsih_cb_idx = -1;
+static u8 config_cb_idx = -1;
+static int mpt_ids;
+
+static u8 tm_tr_cb_idx = -1 ;
+static u8 tm_tr_volume_cb_idx = -1 ;
+static u8 tm_sas_control_cb_idx = -1;
+
+/* command line options */
+static u32 logging_level;
+MODULE_PARM_DESC(logging_level,
+	" bits for enabling additional logging info (default=0)");
+
+
+static ushort max_sectors = 0xFFFF;
+module_param(max_sectors, ushort, 0);
+MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767  default=32767");
+
+
+static int missing_delay[2] = {-1, -1};
+module_param_array(missing_delay, int, NULL, 0);
+MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay");
+
+/* scsi-mid layer global parmeter is max_report_luns, which is 511 */
+#define MPT3SAS_MAX_LUN (16895)
+static int max_lun = MPT3SAS_MAX_LUN;
+module_param(max_lun, int, 0);
+MODULE_PARM_DESC(max_lun, " max lun, default=16895 ");
+
+
+
+
+/* diag_buffer_enable is bitwise
+ * bit 0 set = TRACE
+ * bit 1 set = SNAPSHOT
+ * bit 2 set = EXTENDED
+ *
+ * Either bit can be set, or both
+ */
+static int diag_buffer_enable = -1;
+module_param(diag_buffer_enable, int, 0);
+MODULE_PARM_DESC(diag_buffer_enable,
+	" post diag buffers (TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
+static int disable_discovery = -1;
+module_param(disable_discovery, int, 0);
+MODULE_PARM_DESC(disable_discovery, " disable discovery ");
+
+
+/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */
+static int prot_mask = -1;
+module_param(prot_mask, int, 0);
+MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");
+
+
+/* raid transport support */
+
+static struct raid_template *mpt3sas_raid_template;
+
+
+/**
+ * struct sense_info - common structure for obtaining sense keys
+ * @skey: sense key
+ * @asc: additional sense code
+ * @ascq: additional sense code qualifier
+ */
+struct sense_info {
+	u8 skey;
+	u8 asc;
+	u8 ascq;
+};
+
+#define MPT3SAS_PROCESS_TRIGGER_DIAG (0xFFFB)
+#define MPT3SAS_TURN_ON_FAULT_LED (0xFFFC)
+#define MPT3SAS_PORT_ENABLE_COMPLETE (0xFFFD)
+#define MPT3SAS_ABRT_TASK_SET (0xFFFE)
+#define MPT3SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF)
+/**
+ * struct fw_event_work - firmware event struct
+ * @list: link list framework
+ * @work: work object (ioc->fault_reset_work_q)
+ * @cancel_pending_work: flag set during reset handling
+ * @ioc: per adapter object
+ * @device_handle: device handle
+ * @VF_ID: virtual function id
+ * @VP_ID: virtual port id
+ * @ignore: flag meaning this event has been marked to ignore
+ * @event: firmware event MPI2_EVENT_XXX defined in mpt2_ioc.h
+ * @event_data: reply event data payload follows
+ *
+ * This object stored on ioc->fw_event_list.
+ */
+struct fw_event_work {
+	struct list_head	list;
+	struct work_struct	work;
+	u8			cancel_pending_work;
+	struct delayed_work	delayed_work;
+
+	struct MPT3SAS_ADAPTER *ioc;
+	u16			device_handle;
+	u8			VF_ID;
+	u8			VP_ID;
+	u8			ignore;
+	u16			event;
+	void			*event_data;
+};
+
+/* raid transport support */
+static struct raid_template *mpt3sas_raid_template;
+
+/**
+ * struct _scsi_io_transfer - scsi io transfer
+ * @handle: sas device handle (assigned by firmware)
+ * @is_raid: flag set for hidden raid components
+ * @dir: DMA_TO_DEVICE, DMA_FROM_DEVICE,
+ * @data_length: data transfer length
+ * @data_dma: dma pointer to data
+ * @sense: sense data
+ * @lun: lun number
+ * @cdb_length: cdb length
+ * @cdb: cdb contents
+ * @timeout: timeout for this command
+ * @VF_ID: virtual function id
+ * @VP_ID: virtual port id
+ * @valid_reply: flag set for reply message
+ * @sense_length: sense length
+ * @ioc_status: ioc status
+ * @scsi_state: scsi state
+ * @scsi_status: scsi staus
+ * @log_info: log information
+ * @transfer_length: data length transfer when there is a reply message
+ *
+ * Used for sending internal scsi commands to devices within this module.
+ * Refer to _scsi_send_scsi_io().
+ */
+struct _scsi_io_transfer {
+	u16	handle;
+	u8	is_raid;
+	enum dma_data_direction dir;
+	u32	data_length;
+	dma_addr_t data_dma;
+	u8	sense[SCSI_SENSE_BUFFERSIZE];
+	u32	lun;
+	u8	cdb_length;
+	u8	cdb[32];
+	u8	timeout;
+	u8	VF_ID;
+	u8	VP_ID;
+	u8	valid_reply;
+  /* the following bits are only valid when 'valid_reply = 1' */
+	u32	sense_length;
+	u16	ioc_status;
+	u8	scsi_state;
+	u8	scsi_status;
+	u32	log_info;
+	u32	transfer_length;
+};
+
+/*
+ * The pci device ids are defined in mpi/mpi2_cnfg.h.
+ */
+static DEFINE_PCI_DEVICE_TABLE(scsih_pci_table) = {
+	/* Fury ~ 3004 and 3008 */
+	{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
+		PCI_ANY_ID, PCI_ANY_ID },
+	{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3008,
+		PCI_ANY_ID, PCI_ANY_ID },
+	/* Invader ~ 3108 */
+	{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_1,
+		PCI_ANY_ID, PCI_ANY_ID },
+	{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_2,
+		PCI_ANY_ID, PCI_ANY_ID },
+	{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_5,
+		PCI_ANY_ID, PCI_ANY_ID },
+	{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3108_6,
+		PCI_ANY_ID, PCI_ANY_ID },
+	{0}	/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(pci, scsih_pci_table);
+
+/**
+ * _scsih_set_debug_level - global setting of ioc->logging_level.
+ *
+ * Note: The logging levels are defined in mpt3sas_debug.h.
+ */
+static int
+_scsih_set_debug_level(const char *val, struct kernel_param *kp)
+{
+	int ret = param_set_int(val, kp);
+	struct MPT3SAS_ADAPTER *ioc;
+
+	if (ret)
+		return ret;
+
+	pr_info("setting logging_level(0x%08x)\n", logging_level);
+	list_for_each_entry(ioc, &mpt3sas_ioc_list, list)
+		ioc->logging_level = logging_level;
+	return 0;
+}
+module_param_call(logging_level, _scsih_set_debug_level, param_get_int,
+	&logging_level, 0644);
+
+/**
+ * _scsih_srch_boot_sas_address - search based on sas_address
+ * @sas_address: sas address
+ * @boot_device: boot device object from bios page 2
+ *
+ * Returns 1 when there's a match, 0 means no match.
+ */
+static inline int
+_scsih_srch_boot_sas_address(u64 sas_address,
+	Mpi2BootDeviceSasWwid_t *boot_device)
+{
+	return (sas_address == le64_to_cpu(boot_device->SASAddress)) ?  1 : 0;
+}
+
+/**
+ * _scsih_srch_boot_device_name - search based on device name
+ * @device_name: device name specified in INDENTIFY fram
+ * @boot_device: boot device object from bios page 2
+ *
+ * Returns 1 when there's a match, 0 means no match.
+ */
+static inline int
+_scsih_srch_boot_device_name(u64 device_name,
+	Mpi2BootDeviceDeviceName_t *boot_device)
+{
+	return (device_name == le64_to_cpu(boot_device->DeviceName)) ? 1 : 0;
+}
+
+/**
+ * _scsih_srch_boot_encl_slot - search based on enclosure_logical_id/slot
+ * @enclosure_logical_id: enclosure logical id
+ * @slot_number: slot number
+ * @boot_device: boot device object from bios page 2
+ *
+ * Returns 1 when there's a match, 0 means no match.
+ */
+static inline int
+_scsih_srch_boot_encl_slot(u64 enclosure_logical_id, u16 slot_number,
+	Mpi2BootDeviceEnclosureSlot_t *boot_device)
+{
+	return (enclosure_logical_id == le64_to_cpu(boot_device->
+	    EnclosureLogicalID) && slot_number == le16_to_cpu(boot_device->
+	    SlotNumber)) ? 1 : 0;
+}
+
+/**
+ * _scsih_is_boot_device - search for matching boot device.
+ * @sas_address: sas address
+ * @device_name: device name specified in INDENTIFY fram
+ * @enclosure_logical_id: enclosure logical id
+ * @slot_number: slot number
+ * @form: specifies boot device form
+ * @boot_device: boot device object from bios page 2
+ *
+ * Returns 1 when there's a match, 0 means no match.
+ */
+static int
+_scsih_is_boot_device(u64 sas_address, u64 device_name,
+	u64 enclosure_logical_id, u16 slot, u8 form,
+	Mpi2BiosPage2BootDevice_t *boot_device)
+{
+	int rc = 0;
+
+	switch (form) {
+	case MPI2_BIOSPAGE2_FORM_SAS_WWID:
+		if (!sas_address)
+			break;
+		rc = _scsih_srch_boot_sas_address(
+		    sas_address, &boot_device->SasWwid);
+		break;
+	case MPI2_BIOSPAGE2_FORM_ENCLOSURE_SLOT:
+		if (!enclosure_logical_id)
+			break;
+		rc = _scsih_srch_boot_encl_slot(
+		    enclosure_logical_id,
+		    slot, &boot_device->EnclosureSlot);
+		break;
+	case MPI2_BIOSPAGE2_FORM_DEVICE_NAME:
+		if (!device_name)
+			break;
+		rc = _scsih_srch_boot_device_name(
+		    device_name, &boot_device->DeviceName);
+		break;
+	case MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED:
+		break;
+	}
+
+	return rc;
+}
+
+/**
+ * _scsih_get_sas_address - set the sas_address for given device handle
+ * @handle: device handle
+ * @sas_address: sas address
+ *
+ * Returns 0 success, non-zero when failure
+ */
+static int
+_scsih_get_sas_address(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	u64 *sas_address)
+{
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u32 ioc_status;
+
+	*sas_address = 0;
+
+	if (handle <= ioc->sas_hba.num_phys) {
+		*sas_address = ioc->sas_hba.sas_address;
+		return 0;
+	}
+
+	if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
+		__FILE__, __LINE__, __func__);
+		return -ENXIO;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
+		*sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
+		return 0;
+	}
+
+	/* we hit this becuase the given parent handle doesn't exist */
+	if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+		return -ENXIO;
+
+	/* else error case */
+	pr_err(MPT3SAS_FMT
+		"handle(0x%04x), ioc_status(0x%04x), failure at %s:%d/%s()!\n",
+		ioc->name, handle, ioc_status,
+	     __FILE__, __LINE__, __func__);
+	return -EIO;
+}
+
+/**
+ * _scsih_determine_boot_device - determine boot device.
+ * @ioc: per adapter object
+ * @device: either sas_device or raid_device object
+ * @is_raid: [flag] 1 = raid object, 0 = sas object
+ *
+ * Determines whether this device should be first reported device to
+ * to scsi-ml or sas transport, this purpose is for persistent boot device.
+ * There are primary, alternate, and current entries in bios page 2. The order
+ * priority is primary, alternate, then current.  This routine saves
+ * the corresponding device object and is_raid flag in the ioc object.
+ * The saved data to be used later in _scsih_probe_boot_devices().
+ */
+static void
+_scsih_determine_boot_device(struct MPT3SAS_ADAPTER *ioc,
+	void *device, u8 is_raid)
+{
+	struct _sas_device *sas_device;
+	struct _raid_device *raid_device;
+	u64 sas_address;
+	u64 device_name;
+	u64 enclosure_logical_id;
+	u16 slot;
+
+	 /* only process this function when driver loads */
+	if (!ioc->is_driver_loading)
+		return;
+
+	 /* no Bios, return immediately */
+	if (!ioc->bios_pg3.BiosVersion)
+		return;
+
+	if (!is_raid) {
+		sas_device = device;
+		sas_address = sas_device->sas_address;
+		device_name = sas_device->device_name;
+		enclosure_logical_id = sas_device->enclosure_logical_id;
+		slot = sas_device->slot;
+	} else {
+		raid_device = device;
+		sas_address = raid_device->wwid;
+		device_name = 0;
+		enclosure_logical_id = 0;
+		slot = 0;
+	}
+
+	if (!ioc->req_boot_device.device) {
+		if (_scsih_is_boot_device(sas_address, device_name,
+		    enclosure_logical_id, slot,
+		    (ioc->bios_pg2.ReqBootDeviceForm &
+		    MPI2_BIOSPAGE2_FORM_MASK),
+		    &ioc->bios_pg2.RequestedBootDevice)) {
+			dinitprintk(ioc, pr_info(MPT3SAS_FMT
+			   "%s: req_boot_device(0x%016llx)\n",
+			    ioc->name, __func__,
+			    (unsigned long long)sas_address));
+			ioc->req_boot_device.device = device;
+			ioc->req_boot_device.is_raid = is_raid;
+		}
+	}
+
+	if (!ioc->req_alt_boot_device.device) {
+		if (_scsih_is_boot_device(sas_address, device_name,
+		    enclosure_logical_id, slot,
+		    (ioc->bios_pg2.ReqAltBootDeviceForm &
+		    MPI2_BIOSPAGE2_FORM_MASK),
+		    &ioc->bios_pg2.RequestedAltBootDevice)) {
+			dinitprintk(ioc, pr_info(MPT3SAS_FMT
+			   "%s: req_alt_boot_device(0x%016llx)\n",
+			    ioc->name, __func__,
+			    (unsigned long long)sas_address));
+			ioc->req_alt_boot_device.device = device;
+			ioc->req_alt_boot_device.is_raid = is_raid;
+		}
+	}
+
+	if (!ioc->current_boot_device.device) {
+		if (_scsih_is_boot_device(sas_address, device_name,
+		    enclosure_logical_id, slot,
+		    (ioc->bios_pg2.CurrentBootDeviceForm &
+		    MPI2_BIOSPAGE2_FORM_MASK),
+		    &ioc->bios_pg2.CurrentBootDevice)) {
+			dinitprintk(ioc, pr_info(MPT3SAS_FMT
+			   "%s: current_boot_device(0x%016llx)\n",
+			    ioc->name, __func__,
+			    (unsigned long long)sas_address));
+			ioc->current_boot_device.device = device;
+			ioc->current_boot_device.is_raid = is_raid;
+		}
+	}
+}
+
+/**
+ * mpt3sas_scsih_sas_device_find_by_sas_address - sas device search
+ * @ioc: per adapter object
+ * @sas_address: sas address
+ * Context: Calling function should acquire ioc->sas_device_lock
+ *
+ * This searches for sas_device based on sas_address, then return sas_device
+ * object.
+ */
+struct _sas_device *
+mpt3sas_scsih_sas_device_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address)
+{
+	struct _sas_device *sas_device;
+
+	list_for_each_entry(sas_device, &ioc->sas_device_list, list)
+		if (sas_device->sas_address == sas_address)
+			return sas_device;
+
+	list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
+		if (sas_device->sas_address == sas_address)
+			return sas_device;
+
+	return NULL;
+}
+
+/**
+ * _scsih_sas_device_find_by_handle - sas device search
+ * @ioc: per adapter object
+ * @handle: sas device handle (assigned by firmware)
+ * Context: Calling function should acquire ioc->sas_device_lock
+ *
+ * This searches for sas_device based on sas_address, then return sas_device
+ * object.
+ */
+static struct _sas_device *
+_scsih_sas_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _sas_device *sas_device;
+
+	list_for_each_entry(sas_device, &ioc->sas_device_list, list)
+		if (sas_device->handle == handle)
+			return sas_device;
+
+	list_for_each_entry(sas_device, &ioc->sas_device_init_list, list)
+		if (sas_device->handle == handle)
+			return sas_device;
+
+	return NULL;
+}
+
+/**
+ * _scsih_sas_device_remove - remove sas_device from list.
+ * @ioc: per adapter object
+ * @sas_device: the sas_device object
+ * Context: This function will acquire ioc->sas_device_lock.
+ *
+ * Removing object and freeing associated memory from the ioc->sas_device_list.
+ */
+static void
+_scsih_sas_device_remove(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_device *sas_device)
+{
+	unsigned long flags;
+
+	if (!sas_device)
+		return;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	list_del(&sas_device->list);
+	kfree(sas_device);
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+}
+
+/**
+ * _scsih_device_remove_by_handle - removing device object by handle
+ * @ioc: per adapter object
+ * @handle: device handle
+ *
+ * Return nothing.
+ */
+static void
+_scsih_device_remove_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _sas_device *sas_device;
+	unsigned long flags;
+
+	if (ioc->shost_recovery)
+		return;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+	if (sas_device)
+		list_del(&sas_device->list);
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	if (sas_device)
+		_scsih_remove_device(ioc, sas_device);
+}
+
+/**
+ * mpt3sas_device_remove_by_sas_address - removing device object by sas address
+ * @ioc: per adapter object
+ * @sas_address: device sas_address
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_device_remove_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address)
+{
+	struct _sas_device *sas_device;
+	unsigned long flags;
+
+	if (ioc->shost_recovery)
+		return;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	    sas_address);
+	if (sas_device)
+		list_del(&sas_device->list);
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	if (sas_device)
+		_scsih_remove_device(ioc, sas_device);
+}
+
+/**
+ * _scsih_sas_device_add - insert sas_device to the list.
+ * @ioc: per adapter object
+ * @sas_device: the sas_device object
+ * Context: This function will acquire ioc->sas_device_lock.
+ *
+ * Adding new object to the ioc->sas_device_list.
+ */
+static void
+_scsih_sas_device_add(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_device *sas_device)
+{
+	unsigned long flags;
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: handle(0x%04x), sas_addr(0x%016llx)\n",
+		ioc->name, __func__, sas_device->handle,
+		(unsigned long long)sas_device->sas_address));
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	list_add_tail(&sas_device->list, &ioc->sas_device_list);
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+	if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
+	     sas_device->sas_address_parent)) {
+		_scsih_sas_device_remove(ioc, sas_device);
+	} else if (!sas_device->starget) {
+		/*
+		 * When asyn scanning is enabled, its not possible to remove
+		 * devices while scanning is turned on due to an oops in
+		 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
+		 */
+		if (!ioc->is_driver_loading)
+			mpt3sas_transport_port_remove(ioc,
+			    sas_device->sas_address,
+			    sas_device->sas_address_parent);
+		_scsih_sas_device_remove(ioc, sas_device);
+	}
+}
+
+/**
+ * _scsih_sas_device_init_add - insert sas_device to the list.
+ * @ioc: per adapter object
+ * @sas_device: the sas_device object
+ * Context: This function will acquire ioc->sas_device_lock.
+ *
+ * Adding new object at driver load time to the ioc->sas_device_init_list.
+ */
+static void
+_scsih_sas_device_init_add(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_device *sas_device)
+{
+	unsigned long flags;
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name,
+		__func__, sas_device->handle,
+		(unsigned long long)sas_device->sas_address));
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	list_add_tail(&sas_device->list, &ioc->sas_device_init_list);
+	_scsih_determine_boot_device(ioc, sas_device, 0);
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+}
+
+/**
+ * _scsih_raid_device_find_by_id - raid device search
+ * @ioc: per adapter object
+ * @id: sas device target id
+ * @channel: sas device channel
+ * Context: Calling function should acquire ioc->raid_device_lock
+ *
+ * This searches for raid_device based on target id, then return raid_device
+ * object.
+ */
+static struct _raid_device *
+_scsih_raid_device_find_by_id(struct MPT3SAS_ADAPTER *ioc, int id, int channel)
+{
+	struct _raid_device *raid_device, *r;
+
+	r = NULL;
+	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
+		if (raid_device->id == id && raid_device->channel == channel) {
+			r = raid_device;
+			goto out;
+		}
+	}
+
+ out:
+	return r;
+}
+
+/**
+ * _scsih_raid_device_find_by_handle - raid device search
+ * @ioc: per adapter object
+ * @handle: sas device handle (assigned by firmware)
+ * Context: Calling function should acquire ioc->raid_device_lock
+ *
+ * This searches for raid_device based on handle, then return raid_device
+ * object.
+ */
+static struct _raid_device *
+_scsih_raid_device_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _raid_device *raid_device, *r;
+
+	r = NULL;
+	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
+		if (raid_device->handle != handle)
+			continue;
+		r = raid_device;
+		goto out;
+	}
+
+ out:
+	return r;
+}
+
+/**
+ * _scsih_raid_device_find_by_wwid - raid device search
+ * @ioc: per adapter object
+ * @handle: sas device handle (assigned by firmware)
+ * Context: Calling function should acquire ioc->raid_device_lock
+ *
+ * This searches for raid_device based on wwid, then return raid_device
+ * object.
+ */
+static struct _raid_device *
+_scsih_raid_device_find_by_wwid(struct MPT3SAS_ADAPTER *ioc, u64 wwid)
+{
+	struct _raid_device *raid_device, *r;
+
+	r = NULL;
+	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
+		if (raid_device->wwid != wwid)
+			continue;
+		r = raid_device;
+		goto out;
+	}
+
+ out:
+	return r;
+}
+
+/**
+ * _scsih_raid_device_add - add raid_device object
+ * @ioc: per adapter object
+ * @raid_device: raid_device object
+ *
+ * This is added to the raid_device_list link list.
+ */
+static void
+_scsih_raid_device_add(struct MPT3SAS_ADAPTER *ioc,
+	struct _raid_device *raid_device)
+{
+	unsigned long flags;
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: handle(0x%04x), wwid(0x%016llx)\n", ioc->name, __func__,
+	    raid_device->handle, (unsigned long long)raid_device->wwid));
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	list_add_tail(&raid_device->list, &ioc->raid_device_list);
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+}
+
+/**
+ * _scsih_raid_device_remove - delete raid_device object
+ * @ioc: per adapter object
+ * @raid_device: raid_device object
+ *
+ */
+static void
+_scsih_raid_device_remove(struct MPT3SAS_ADAPTER *ioc,
+	struct _raid_device *raid_device)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	list_del(&raid_device->list);
+	kfree(raid_device);
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+}
+
+/**
+ * mpt3sas_scsih_expander_find_by_handle - expander device search
+ * @ioc: per adapter object
+ * @handle: expander handle (assigned by firmware)
+ * Context: Calling function should acquire ioc->sas_device_lock
+ *
+ * This searches for expander device based on handle, then returns the
+ * sas_node object.
+ */
+struct _sas_node *
+mpt3sas_scsih_expander_find_by_handle(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _sas_node *sas_expander, *r;
+
+	r = NULL;
+	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
+		if (sas_expander->handle != handle)
+			continue;
+		r = sas_expander;
+		goto out;
+	}
+ out:
+	return r;
+}
+
+/**
+ * mpt3sas_scsih_expander_find_by_sas_address - expander device search
+ * @ioc: per adapter object
+ * @sas_address: sas address
+ * Context: Calling function should acquire ioc->sas_node_lock.
+ *
+ * This searches for expander device based on sas_address, then returns the
+ * sas_node object.
+ */
+struct _sas_node *
+mpt3sas_scsih_expander_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address)
+{
+	struct _sas_node *sas_expander, *r;
+
+	r = NULL;
+	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
+		if (sas_expander->sas_address != sas_address)
+			continue;
+		r = sas_expander;
+		goto out;
+	}
+ out:
+	return r;
+}
+
+/**
+ * _scsih_expander_node_add - insert expander device to the list.
+ * @ioc: per adapter object
+ * @sas_expander: the sas_device object
+ * Context: This function will acquire ioc->sas_node_lock.
+ *
+ * Adding new object to the ioc->sas_expander_list.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_expander_node_add(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_node *sas_expander)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	list_add_tail(&sas_expander->list, &ioc->sas_expander_list);
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+}
+
+/**
+ * _scsih_is_end_device - determines if device is an end device
+ * @device_info: bitfield providing information about the device.
+ * Context: none
+ *
+ * Returns 1 if end device.
+ */
+static int
+_scsih_is_end_device(u32 device_info)
+{
+	if (device_info & MPI2_SAS_DEVICE_INFO_END_DEVICE &&
+		((device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) |
+		(device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET) |
+		(device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)))
+		return 1;
+	else
+		return 0;
+}
+
+/**
+ * _scsih_scsi_lookup_get - returns scmd entry
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Returns the smid stored scmd pointer.
+ */
+static struct scsi_cmnd *
+_scsih_scsi_lookup_get(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	return ioc->scsi_lookup[smid - 1].scmd;
+}
+
+/**
+ * _scsih_scsi_lookup_get_clear - returns scmd entry
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * Returns the smid stored scmd pointer.
+ * Then will derefrence the stored scmd pointer.
+ */
+static inline struct scsi_cmnd *
+_scsih_scsi_lookup_get_clear(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	unsigned long flags;
+	struct scsi_cmnd *scmd;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	scmd = ioc->scsi_lookup[smid - 1].scmd;
+	ioc->scsi_lookup[smid - 1].scmd = NULL;
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+
+	return scmd;
+}
+
+/**
+ * _scsih_scsi_lookup_find_by_scmd - scmd lookup
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @scmd: pointer to scsi command object
+ * Context: This function will acquire ioc->scsi_lookup_lock.
+ *
+ * This will search for a scmd pointer in the scsi_lookup array,
+ * returning the revelent smid.  A returned value of zero means invalid.
+ */
+static u16
+_scsih_scsi_lookup_find_by_scmd(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd
+	*scmd)
+{
+	u16 smid;
+	unsigned long	flags;
+	int i;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	smid = 0;
+	for (i = 0; i < ioc->scsiio_depth; i++) {
+		if (ioc->scsi_lookup[i].scmd == scmd) {
+			smid = ioc->scsi_lookup[i].smid;
+			goto out;
+		}
+	}
+ out:
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	return smid;
+}
+
+/**
+ * _scsih_scsi_lookup_find_by_target - search for matching channel:id
+ * @ioc: per adapter object
+ * @id: target id
+ * @channel: channel
+ * Context: This function will acquire ioc->scsi_lookup_lock.
+ *
+ * This will search for a matching channel:id in the scsi_lookup array,
+ * returning 1 if found.
+ */
+static u8
+_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id,
+	int channel)
+{
+	u8 found;
+	unsigned long	flags;
+	int i;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	found = 0;
+	for (i = 0 ; i < ioc->scsiio_depth; i++) {
+		if (ioc->scsi_lookup[i].scmd &&
+		    (ioc->scsi_lookup[i].scmd->device->id == id &&
+		    ioc->scsi_lookup[i].scmd->device->channel == channel)) {
+			found = 1;
+			goto out;
+		}
+	}
+ out:
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	return found;
+}
+
+/**
+ * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun
+ * @ioc: per adapter object
+ * @id: target id
+ * @lun: lun number
+ * @channel: channel
+ * Context: This function will acquire ioc->scsi_lookup_lock.
+ *
+ * This will search for a matching channel:id:lun in the scsi_lookup array,
+ * returning 1 if found.
+ */
+static u8
+_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id,
+	unsigned int lun, int channel)
+{
+	u8 found;
+	unsigned long	flags;
+	int i;
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	found = 0;
+	for (i = 0 ; i < ioc->scsiio_depth; i++) {
+		if (ioc->scsi_lookup[i].scmd &&
+		    (ioc->scsi_lookup[i].scmd->device->id == id &&
+		    ioc->scsi_lookup[i].scmd->device->channel == channel &&
+		    ioc->scsi_lookup[i].scmd->device->lun == lun)) {
+			found = 1;
+			goto out;
+		}
+	}
+ out:
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+	return found;
+}
+
+
+static void
+_scsih_adjust_queue_depth(struct scsi_device *sdev, int qdepth)
+{
+	struct Scsi_Host *shost = sdev->host;
+	int max_depth;
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct _sas_device *sas_device;
+	unsigned long flags;
+
+	max_depth = shost->can_queue;
+
+	/* limit max device queue for SATA to 32 */
+	sas_device_priv_data = sdev->hostdata;
+	if (!sas_device_priv_data)
+		goto not_sata;
+	sas_target_priv_data = sas_device_priv_data->sas_target;
+	if (!sas_target_priv_data)
+		goto not_sata;
+	if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))
+		goto not_sata;
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	   sas_device_priv_data->sas_target->sas_address);
+	if (sas_device && sas_device->device_info &
+	    MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
+		max_depth = MPT3SAS_SATA_QUEUE_DEPTH;
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ not_sata:
+
+	if (!sdev->tagged_supported)
+		max_depth = 1;
+	if (qdepth > max_depth)
+		qdepth = max_depth;
+	scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
+}
+
+/**
+ * _scsih_change_queue_depth - setting device queue depth
+ * @sdev: scsi device struct
+ * @qdepth: requested queue depth
+ * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
+ * (see include/scsi/scsi_host.h for definition)
+ *
+ * Returns queue depth.
+ */
+static int
+_scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
+{
+	if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP)
+		_scsih_adjust_queue_depth(sdev, qdepth);
+	else if (reason == SCSI_QDEPTH_QFULL)
+		scsi_track_queue_full(sdev, qdepth);
+	else
+		return -EOPNOTSUPP;
+
+	if (sdev->inquiry_len > 7)
+		sdev_printk(KERN_INFO, sdev, "qdepth(%d), tagged(%d), " \
+		"simple(%d), ordered(%d), scsi_level(%d), cmd_que(%d)\n",
+		sdev->queue_depth, sdev->tagged_supported, sdev->simple_tags,
+		sdev->ordered_tags, sdev->scsi_level,
+		(sdev->inquiry[7] & 2) >> 1);
+
+	return sdev->queue_depth;
+}
+
+/**
+ * _scsih_change_queue_type - changing device queue tag type
+ * @sdev: scsi device struct
+ * @tag_type: requested tag type
+ *
+ * Returns queue tag type.
+ */
+static int
+_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
+{
+	if (sdev->tagged_supported) {
+		scsi_set_tag_type(sdev, tag_type);
+		if (tag_type)
+			scsi_activate_tcq(sdev, sdev->queue_depth);
+		else
+			scsi_deactivate_tcq(sdev, sdev->queue_depth);
+	} else
+		tag_type = 0;
+
+	return tag_type;
+}
+
+
+/**
+ * _scsih_target_alloc - target add routine
+ * @starget: scsi target struct
+ *
+ * Returns 0 if ok. Any other return is assumed to be an error and
+ * the device is ignored.
+ */
+static int
+_scsih_target_alloc(struct scsi_target *starget)
+{
+	struct Scsi_Host *shost = dev_to_shost(&starget->dev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct _sas_device *sas_device;
+	struct _raid_device *raid_device;
+	unsigned long flags;
+	struct sas_rphy *rphy;
+
+	sas_target_priv_data = kzalloc(sizeof(struct scsi_target), GFP_KERNEL);
+	if (!sas_target_priv_data)
+		return -ENOMEM;
+
+	starget->hostdata = sas_target_priv_data;
+	sas_target_priv_data->starget = starget;
+	sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
+
+	/* RAID volumes */
+	if (starget->channel == RAID_CHANNEL) {
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
+		    starget->channel);
+		if (raid_device) {
+			sas_target_priv_data->handle = raid_device->handle;
+			sas_target_priv_data->sas_address = raid_device->wwid;
+			sas_target_priv_data->flags |= MPT_TARGET_FLAGS_VOLUME;
+			raid_device->starget = starget;
+		}
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+		return 0;
+	}
+
+	/* sas/sata devices */
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	rphy = dev_to_rphy(starget->dev.parent);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	   rphy->identify.sas_address);
+
+	if (sas_device) {
+		sas_target_priv_data->handle = sas_device->handle;
+		sas_target_priv_data->sas_address = sas_device->sas_address;
+		sas_device->starget = starget;
+		sas_device->id = starget->id;
+		sas_device->channel = starget->channel;
+		if (test_bit(sas_device->handle, ioc->pd_handles))
+			sas_target_priv_data->flags |=
+			    MPT_TARGET_FLAGS_RAID_COMPONENT;
+		if (sas_device->fast_path)
+			sas_target_priv_data->flags |= MPT_TARGET_FASTPATH_IO;
+	}
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+	return 0;
+}
+
+/**
+ * _scsih_target_destroy - target destroy routine
+ * @starget: scsi target struct
+ *
+ * Returns nothing.
+ */
+static void
+_scsih_target_destroy(struct scsi_target *starget)
+{
+	struct Scsi_Host *shost = dev_to_shost(&starget->dev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct _sas_device *sas_device;
+	struct _raid_device *raid_device;
+	unsigned long flags;
+	struct sas_rphy *rphy;
+
+	sas_target_priv_data = starget->hostdata;
+	if (!sas_target_priv_data)
+		return;
+
+	if (starget->channel == RAID_CHANNEL) {
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		raid_device = _scsih_raid_device_find_by_id(ioc, starget->id,
+		    starget->channel);
+		if (raid_device) {
+			raid_device->starget = NULL;
+			raid_device->sdev = NULL;
+		}
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+		goto out;
+	}
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	rphy = dev_to_rphy(starget->dev.parent);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	   rphy->identify.sas_address);
+	if (sas_device && (sas_device->starget == starget) &&
+	    (sas_device->id == starget->id) &&
+	    (sas_device->channel == starget->channel))
+		sas_device->starget = NULL;
+
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+ out:
+	kfree(sas_target_priv_data);
+	starget->hostdata = NULL;
+}
+
+/**
+ * _scsih_slave_alloc - device add routine
+ * @sdev: scsi device struct
+ *
+ * Returns 0 if ok. Any other return is assumed to be an error and
+ * the device is ignored.
+ */
+static int
+_scsih_slave_alloc(struct scsi_device *sdev)
+{
+	struct Scsi_Host *shost;
+	struct MPT3SAS_ADAPTER *ioc;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_target *starget;
+	struct _raid_device *raid_device;
+	unsigned long flags;
+
+	sas_device_priv_data = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
+	if (!sas_device_priv_data)
+		return -ENOMEM;
+
+	sas_device_priv_data->lun = sdev->lun;
+	sas_device_priv_data->flags = MPT_DEVICE_FLAGS_INIT;
+
+	starget = scsi_target(sdev);
+	sas_target_priv_data = starget->hostdata;
+	sas_target_priv_data->num_luns++;
+	sas_device_priv_data->sas_target = sas_target_priv_data;
+	sdev->hostdata = sas_device_priv_data;
+	if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT))
+		sdev->no_uld_attach = 1;
+
+	shost = dev_to_shost(&starget->dev);
+	ioc = shost_priv(shost);
+	if (starget->channel == RAID_CHANNEL) {
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		raid_device = _scsih_raid_device_find_by_id(ioc,
+		    starget->id, starget->channel);
+		if (raid_device)
+			raid_device->sdev = sdev; /* raid is single lun */
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+	}
+
+	return 0;
+}
+
+/**
+ * _scsih_slave_destroy - device destroy routine
+ * @sdev: scsi device struct
+ *
+ * Returns nothing.
+ */
+static void
+_scsih_slave_destroy(struct scsi_device *sdev)
+{
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct scsi_target *starget;
+	struct Scsi_Host *shost;
+	struct MPT3SAS_ADAPTER *ioc;
+	struct _sas_device *sas_device;
+	unsigned long flags;
+
+	if (!sdev->hostdata)
+		return;
+
+	starget = scsi_target(sdev);
+	sas_target_priv_data = starget->hostdata;
+	sas_target_priv_data->num_luns--;
+
+	shost = dev_to_shost(&starget->dev);
+	ioc = shost_priv(shost);
+
+	if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+		   sas_target_priv_data->sas_address);
+		if (sas_device && !sas_target_priv_data->num_luns)
+			sas_device->starget = NULL;
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	}
+
+	kfree(sdev->hostdata);
+	sdev->hostdata = NULL;
+}
+
+/**
+ * _scsih_display_sata_capabilities - sata capabilities
+ * @ioc: per adapter object
+ * @handle: device handle
+ * @sdev: scsi device struct
+ */
+static void
+_scsih_display_sata_capabilities(struct MPT3SAS_ADAPTER *ioc,
+	u16 handle, struct scsi_device *sdev)
+{
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	u32 ioc_status;
+	u16 flags;
+	u32 device_info;
+
+	if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	flags = le16_to_cpu(sas_device_pg0.Flags);
+	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
+
+	sdev_printk(KERN_INFO, sdev,
+	    "atapi(%s), ncq(%s), asyn_notify(%s), smart(%s), fua(%s), "
+	    "sw_preserve(%s)\n",
+	    (device_info & MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? "y" : "n",
+	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_NCQ_SUPPORTED) ? "y" : "n",
+	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY) ? "y" :
+	    "n",
+	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SMART_SUPPORTED) ? "y" : "n",
+	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_FUA_SUPPORTED) ? "y" : "n",
+	    (flags & MPI2_SAS_DEVICE0_FLAGS_SATA_SW_PRESERVE) ? "y" : "n");
+}
+
+/*
+ * raid transport support -
+ * Enabled for SLES11 and newer, in older kernels the driver will panic when
+ * unloading the driver followed by a load - I beleive that the subroutine
+ * raid_class_release() is not cleaning up properly.
+ */
+
+/**
+ * _scsih_is_raid - return boolean indicating device is raid volume
+ * @dev the device struct object
+ */
+static int
+_scsih_is_raid(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+
+	return (sdev->channel == RAID_CHANNEL) ? 1 : 0;
+}
+
+/**
+ * _scsih_get_resync - get raid volume resync percent complete
+ * @dev the device struct object
+ */
+static void
+_scsih_get_resync(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
+	static struct _raid_device *raid_device;
+	unsigned long flags;
+	Mpi2RaidVolPage0_t vol_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u32 volume_status_flags;
+	u8 percent_complete;
+	u16 handle;
+
+	percent_complete = 0;
+	handle = 0;
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
+	    sdev->channel);
+	if (raid_device) {
+		handle = raid_device->handle;
+		percent_complete = raid_device->percent_complete;
+	}
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+
+	if (!handle)
+		goto out;
+
+	if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
+	     MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
+	     sizeof(Mpi2RaidVolPage0_t))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		percent_complete = 0;
+		goto out;
+	}
+
+	volume_status_flags = le32_to_cpu(vol_pg0.VolumeStatusFlags);
+	if (!(volume_status_flags &
+	    MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS))
+		percent_complete = 0;
+
+ out:
+	raid_set_resync(mpt3sas_raid_template, dev, percent_complete);
+}
+
+/**
+ * _scsih_get_state - get raid volume level
+ * @dev the device struct object
+ */
+static void
+_scsih_get_state(struct device *dev)
+{
+	struct scsi_device *sdev = to_scsi_device(dev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(sdev->host);
+	static struct _raid_device *raid_device;
+	unsigned long flags;
+	Mpi2RaidVolPage0_t vol_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u32 volstate;
+	enum raid_state state = RAID_STATE_UNKNOWN;
+	u16 handle = 0;
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	raid_device = _scsih_raid_device_find_by_id(ioc, sdev->id,
+	    sdev->channel);
+	if (raid_device)
+		handle = raid_device->handle;
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+
+	if (!raid_device)
+		goto out;
+
+	if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, &vol_pg0,
+	     MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
+	     sizeof(Mpi2RaidVolPage0_t))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+
+	volstate = le32_to_cpu(vol_pg0.VolumeStatusFlags);
+	if (volstate & MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS) {
+		state = RAID_STATE_RESYNCING;
+		goto out;
+	}
+
+	switch (vol_pg0.VolumeState) {
+	case MPI2_RAID_VOL_STATE_OPTIMAL:
+	case MPI2_RAID_VOL_STATE_ONLINE:
+		state = RAID_STATE_ACTIVE;
+		break;
+	case  MPI2_RAID_VOL_STATE_DEGRADED:
+		state = RAID_STATE_DEGRADED;
+		break;
+	case MPI2_RAID_VOL_STATE_FAILED:
+	case MPI2_RAID_VOL_STATE_MISSING:
+		state = RAID_STATE_OFFLINE;
+		break;
+	}
+ out:
+	raid_set_state(mpt3sas_raid_template, dev, state);
+}
+
+/**
+ * _scsih_set_level - set raid level
+ * @sdev: scsi device struct
+ * @volume_type: volume type
+ */
+static void
+_scsih_set_level(struct scsi_device *sdev, u8 volume_type)
+{
+	enum raid_level level = RAID_LEVEL_UNKNOWN;
+
+	switch (volume_type) {
+	case MPI2_RAID_VOL_TYPE_RAID0:
+		level = RAID_LEVEL_0;
+		break;
+	case MPI2_RAID_VOL_TYPE_RAID10:
+		level = RAID_LEVEL_10;
+		break;
+	case MPI2_RAID_VOL_TYPE_RAID1E:
+		level = RAID_LEVEL_1E;
+		break;
+	case MPI2_RAID_VOL_TYPE_RAID1:
+		level = RAID_LEVEL_1;
+		break;
+	}
+
+	raid_set_level(mpt3sas_raid_template, &sdev->sdev_gendev, level);
+}
+
+
+/**
+ * _scsih_get_volume_capabilities - volume capabilities
+ * @ioc: per adapter object
+ * @sas_device: the raid_device object
+ *
+ * Returns 0 for success, else 1
+ */
+static int
+_scsih_get_volume_capabilities(struct MPT3SAS_ADAPTER *ioc,
+	struct _raid_device *raid_device)
+{
+	Mpi2RaidVolPage0_t *vol_pg0;
+	Mpi2RaidPhysDiskPage0_t pd_pg0;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u16 sz;
+	u8 num_pds;
+
+	if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle,
+	    &num_pds)) || !num_pds) {
+		dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
+		    __func__));
+		return 1;
+	}
+
+	raid_device->num_pds = num_pds;
+	sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds *
+	    sizeof(Mpi2RaidVol0PhysDisk_t));
+	vol_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!vol_pg0) {
+		dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
+		    __func__));
+		return 1;
+	}
+
+	if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0,
+	     MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) {
+		dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
+		    __func__));
+		kfree(vol_pg0);
+		return 1;
+	}
+
+	raid_device->volume_type = vol_pg0->VolumeType;
+
+	/* figure out what the underlying devices are by
+	 * obtaining the device_info bits for the 1st device
+	 */
+	if (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
+	    &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM,
+	    vol_pg0->PhysDisk[0].PhysDiskNum))) {
+		if (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
+		    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
+		    le16_to_cpu(pd_pg0.DevHandle)))) {
+			raid_device->device_info =
+			    le32_to_cpu(sas_device_pg0.DeviceInfo);
+		}
+	}
+
+	kfree(vol_pg0);
+	return 0;
+}
+
+
+
+/**
+ * _scsih_enable_tlr - setting TLR flags
+ * @ioc: per adapter object
+ * @sdev: scsi device struct
+ *
+ * Enabling Transaction Layer Retries for tape devices when
+ * vpd page 0x90 is present
+ *
+ */
+static void
+_scsih_enable_tlr(struct MPT3SAS_ADAPTER *ioc, struct scsi_device *sdev)
+{
+
+	/* only for TAPE */
+	if (sdev->type != TYPE_TAPE)
+		return;
+
+	if (!(ioc->facts.IOCCapabilities & MPI2_IOCFACTS_CAPABILITY_TLR))
+		return;
+
+	sas_enable_tlr(sdev);
+	sdev_printk(KERN_INFO, sdev, "TLR %s\n",
+	    sas_is_tlr_enabled(sdev) ? "Enabled" : "Disabled");
+	return;
+
+}
+
+/**
+ * _scsih_slave_configure - device configure routine.
+ * @sdev: scsi device struct
+ *
+ * Returns 0 if ok. Any other return is assumed to be an error and
+ * the device is ignored.
+ */
+static int
+_scsih_slave_configure(struct scsi_device *sdev)
+{
+	struct Scsi_Host *shost = sdev->host;
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct _sas_device *sas_device;
+	struct _raid_device *raid_device;
+	unsigned long flags;
+	int qdepth;
+	u8 ssp_target = 0;
+	char *ds = "";
+	char *r_level = "";
+	u16 handle, volume_handle = 0;
+	u64 volume_wwid = 0;
+
+	qdepth = 1;
+	sas_device_priv_data = sdev->hostdata;
+	sas_device_priv_data->configured_lun = 1;
+	sas_device_priv_data->flags &= ~MPT_DEVICE_FLAGS_INIT;
+	sas_target_priv_data = sas_device_priv_data->sas_target;
+	handle = sas_target_priv_data->handle;
+
+	/* raid volume handling */
+	if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME) {
+
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+		if (!raid_device) {
+			dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+			    "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
+			    __LINE__, __func__));
+			return 1;
+		}
+
+		if (_scsih_get_volume_capabilities(ioc, raid_device)) {
+			dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+			    "failure at %s:%d/%s()!\n", ioc->name, __FILE__,
+			    __LINE__, __func__));
+			return 1;
+		}
+
+
+		/* RAID Queue Depth Support
+		 * IS volume = underlying qdepth of drive type, either
+		 *    MPT3SAS_SAS_QUEUE_DEPTH or MPT3SAS_SATA_QUEUE_DEPTH
+		 * IM/IME/R10 = 128 (MPT3SAS_RAID_QUEUE_DEPTH)
+		 */
+		if (raid_device->device_info &
+		    MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
+			qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
+			ds = "SSP";
+		} else {
+			qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
+			 if (raid_device->device_info &
+			    MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
+				ds = "SATA";
+			else
+				ds = "STP";
+		}
+
+		switch (raid_device->volume_type) {
+		case MPI2_RAID_VOL_TYPE_RAID0:
+			r_level = "RAID0";
+			break;
+		case MPI2_RAID_VOL_TYPE_RAID1E:
+			qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
+			if (ioc->manu_pg10.OEMIdentifier &&
+			    (le32_to_cpu(ioc->manu_pg10.GenericFlags0) &
+			    MFG10_GF0_R10_DISPLAY) &&
+			    !(raid_device->num_pds % 2))
+				r_level = "RAID10";
+			else
+				r_level = "RAID1E";
+			break;
+		case MPI2_RAID_VOL_TYPE_RAID1:
+			qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
+			r_level = "RAID1";
+			break;
+		case MPI2_RAID_VOL_TYPE_RAID10:
+			qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
+			r_level = "RAID10";
+			break;
+		case MPI2_RAID_VOL_TYPE_UNKNOWN:
+		default:
+			qdepth = MPT3SAS_RAID_QUEUE_DEPTH;
+			r_level = "RAIDX";
+			break;
+		}
+
+		sdev_printk(KERN_INFO, sdev,
+			"%s: handle(0x%04x), wwid(0x%016llx), pd_count(%d), type(%s)\n",
+			 r_level, raid_device->handle,
+			 (unsigned long long)raid_device->wwid,
+			 raid_device->num_pds, ds);
+
+
+		_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
+
+/* raid transport support */
+		_scsih_set_level(sdev, raid_device->volume_type);
+		return 0;
+	}
+
+	/* non-raid handling */
+	if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) {
+		if (mpt3sas_config_get_volume_handle(ioc, handle,
+		    &volume_handle)) {
+			dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+			    "failure at %s:%d/%s()!\n", ioc->name,
+			    __FILE__, __LINE__, __func__));
+			return 1;
+		}
+		if (volume_handle && mpt3sas_config_get_volume_wwid(ioc,
+		    volume_handle, &volume_wwid)) {
+			dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+			    "failure at %s:%d/%s()!\n", ioc->name,
+			    __FILE__, __LINE__, __func__));
+			return 1;
+		}
+	}
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	   sas_device_priv_data->sas_target->sas_address);
+	if (!sas_device) {
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		dfailprintk(ioc, pr_warn(MPT3SAS_FMT
+		    "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__,
+		    __func__));
+		return 1;
+	}
+
+	sas_device->volume_handle = volume_handle;
+	sas_device->volume_wwid = volume_wwid;
+	if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) {
+		qdepth = MPT3SAS_SAS_QUEUE_DEPTH;
+		ssp_target = 1;
+		ds = "SSP";
+	} else {
+		qdepth = MPT3SAS_SATA_QUEUE_DEPTH;
+		if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
+			ds = "STP";
+		else if (sas_device->device_info &
+		    MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
+			ds = "SATA";
+	}
+
+	sdev_printk(KERN_INFO, sdev, "%s: handle(0x%04x), " \
+	    "sas_addr(0x%016llx), phy(%d), device_name(0x%016llx)\n",
+	    ds, handle, (unsigned long long)sas_device->sas_address,
+	    sas_device->phy, (unsigned long long)sas_device->device_name);
+	sdev_printk(KERN_INFO, sdev,
+		"%s: enclosure_logical_id(0x%016llx), slot(%d)\n",
+		ds, (unsigned long long)
+	    sas_device->enclosure_logical_id, sas_device->slot);
+
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+	if (!ssp_target)
+		_scsih_display_sata_capabilities(ioc, handle, sdev);
+
+
+	_scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT);
+
+	if (ssp_target) {
+		sas_read_port_mode_page(sdev);
+		_scsih_enable_tlr(ioc, sdev);
+	}
+
+	return 0;
+}
+
+/**
+ * _scsih_bios_param - fetch head, sector, cylinder info for a disk
+ * @sdev: scsi device struct
+ * @bdev: pointer to block device context
+ * @capacity: device size (in 512 byte sectors)
+ * @params: three element array to place output:
+ *              params[0] number of heads (max 255)
+ *              params[1] number of sectors (max 63)
+ *              params[2] number of cylinders
+ *
+ * Return nothing.
+ */
+static int
+_scsih_bios_param(struct scsi_device *sdev, struct block_device *bdev,
+	sector_t capacity, int params[])
+{
+	int		heads;
+	int		sectors;
+	sector_t	cylinders;
+	ulong		dummy;
+
+	heads = 64;
+	sectors = 32;
+
+	dummy = heads * sectors;
+	cylinders = capacity;
+	sector_div(cylinders, dummy);
+
+	/*
+	 * Handle extended translation size for logical drives
+	 * > 1Gb
+	 */
+	if ((ulong)capacity >= 0x200000) {
+		heads = 255;
+		sectors = 63;
+		dummy = heads * sectors;
+		cylinders = capacity;
+		sector_div(cylinders, dummy);
+	}
+
+	/* return result */
+	params[0] = heads;
+	params[1] = sectors;
+	params[2] = cylinders;
+
+	return 0;
+}
+
+/**
+ * _scsih_response_code - translation of device response code
+ * @ioc: per adapter object
+ * @response_code: response code returned by the device
+ *
+ * Return nothing.
+ */
+static void
+_scsih_response_code(struct MPT3SAS_ADAPTER *ioc, u8 response_code)
+{
+	char *desc;
+
+	switch (response_code) {
+	case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
+		desc = "task management request completed";
+		break;
+	case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
+		desc = "invalid frame";
+		break;
+	case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
+		desc = "task management request not supported";
+		break;
+	case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
+		desc = "task management request failed";
+		break;
+	case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
+		desc = "task management request succeeded";
+		break;
+	case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
+		desc = "invalid lun";
+		break;
+	case 0xA:
+		desc = "overlapped tag attempted";
+		break;
+	case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
+		desc = "task queued, however not sent to target";
+		break;
+	default:
+		desc = "unknown";
+		break;
+	}
+	pr_warn(MPT3SAS_FMT "response_code(0x%01x): %s\n",
+		ioc->name, response_code, desc);
+}
+
+/**
+ * _scsih_tm_done - tm completion routine
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: none.
+ *
+ * The callback handler when using scsih_issue_tm.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_scsih_tm_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+
+	if (ioc->tm_cmds.status == MPT3_CMD_NOT_USED)
+		return 1;
+	if (ioc->tm_cmds.smid != smid)
+		return 1;
+	mpt3sas_base_flush_reply_queues(ioc);
+	ioc->tm_cmds.status |= MPT3_CMD_COMPLETE;
+	mpi_reply =  mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (mpi_reply) {
+		memcpy(ioc->tm_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
+		ioc->tm_cmds.status |= MPT3_CMD_REPLY_VALID;
+	}
+	ioc->tm_cmds.status &= ~MPT3_CMD_PENDING;
+	complete(&ioc->tm_cmds.done);
+	return 1;
+}
+
+/**
+ * mpt3sas_scsih_set_tm_flag - set per target tm_busy
+ * @ioc: per adapter object
+ * @handle: device handle
+ *
+ * During taskmangement request, we need to freeze the device queue.
+ */
+void
+mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_device *sdev;
+	u8 skip = 0;
+
+	shost_for_each_device(sdev, ioc->shost) {
+		if (skip)
+			continue;
+		sas_device_priv_data = sdev->hostdata;
+		if (!sas_device_priv_data)
+			continue;
+		if (sas_device_priv_data->sas_target->handle == handle) {
+			sas_device_priv_data->sas_target->tm_busy = 1;
+			skip = 1;
+			ioc->ignore_loginfos = 1;
+		}
+	}
+}
+
+/**
+ * mpt3sas_scsih_clear_tm_flag - clear per target tm_busy
+ * @ioc: per adapter object
+ * @handle: device handle
+ *
+ * During taskmangement request, we need to freeze the device queue.
+ */
+void
+mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_device *sdev;
+	u8 skip = 0;
+
+	shost_for_each_device(sdev, ioc->shost) {
+		if (skip)
+			continue;
+		sas_device_priv_data = sdev->hostdata;
+		if (!sas_device_priv_data)
+			continue;
+		if (sas_device_priv_data->sas_target->handle == handle) {
+			sas_device_priv_data->sas_target->tm_busy = 0;
+			skip = 1;
+			ioc->ignore_loginfos = 0;
+		}
+	}
+}
+
+/**
+ * mpt3sas_scsih_issue_tm - main routine for sending tm requests
+ * @ioc: per adapter struct
+ * @device_handle: device handle
+ * @channel: the channel assigned by the OS
+ * @id: the id assigned by the OS
+ * @lun: lun number
+ * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h)
+ * @smid_task: smid assigned to the task
+ * @timeout: timeout in seconds
+ * @serial_number: the serial_number from scmd
+ * @m_type: TM_MUTEX_ON or TM_MUTEX_OFF
+ * Context: user
+ *
+ * A generic API for sending task management requests to firmware.
+ *
+ * The callback index is set inside `ioc->tm_cb_idx`.
+ *
+ * Return SUCCESS or FAILED.
+ */
+int
+mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel,
+	uint id, uint lun, u8 type, u16 smid_task, ulong timeout,
+	unsigned long serial_number, enum mutex_type m_type)
+{
+	Mpi2SCSITaskManagementRequest_t *mpi_request;
+	Mpi2SCSITaskManagementReply_t *mpi_reply;
+	u16 smid = 0;
+	u32 ioc_state;
+	unsigned long timeleft;
+	struct scsiio_tracker *scsi_lookup = NULL;
+	int rc;
+
+	if (m_type == TM_MUTEX_ON)
+		mutex_lock(&ioc->tm_cmds.mutex);
+	if (ioc->tm_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_info(MPT3SAS_FMT "%s: tm_cmd busy!!!\n",
+		    __func__, ioc->name);
+		rc = FAILED;
+		goto err_out;
+	}
+
+	if (ioc->shost_recovery || ioc->remove_host ||
+	    ioc->pci_error_recovery) {
+		pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
+		    __func__, ioc->name);
+		rc = FAILED;
+		goto err_out;
+	}
+
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 0);
+	if (ioc_state & MPI2_DOORBELL_USED) {
+		dhsprintk(ioc, pr_info(MPT3SAS_FMT
+			"unexpected doorbell active!\n", ioc->name));
+		rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+		rc = (!rc) ? SUCCESS : FAILED;
+		goto err_out;
+	}
+
+	if ((ioc_state & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
+		mpt3sas_base_fault_info(ioc, ioc_state &
+		    MPI2_DOORBELL_DATA_MASK);
+		rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+		rc = (!rc) ? SUCCESS : FAILED;
+		goto err_out;
+	}
+
+	smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = FAILED;
+		goto err_out;
+	}
+
+	if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
+		scsi_lookup = &ioc->scsi_lookup[smid_task - 1];
+
+	dtmprintk(ioc, pr_info(MPT3SAS_FMT
+		"sending tm: handle(0x%04x), task_type(0x%02x), smid(%d)\n",
+		ioc->name, handle, type, smid_task));
+	ioc->tm_cmds.status = MPT3_CMD_PENDING;
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->tm_cmds.smid = smid;
+	memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
+	memset(ioc->tm_cmds.reply, 0, sizeof(Mpi2SCSITaskManagementReply_t));
+	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
+	mpi_request->DevHandle = cpu_to_le16(handle);
+	mpi_request->TaskType = type;
+	mpi_request->TaskMID = cpu_to_le16(smid_task);
+	int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
+	mpt3sas_scsih_set_tm_flag(ioc, handle);
+	init_completion(&ioc->tm_cmds.done);
+	mpt3sas_base_put_smid_hi_priority(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
+	if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2SCSITaskManagementRequest_t)/4);
+		if (!(ioc->tm_cmds.status & MPT3_CMD_RESET)) {
+			rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+			    FORCE_BIG_HAMMER);
+			rc = (!rc) ? SUCCESS : FAILED;
+			ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
+			mpt3sas_scsih_clear_tm_flag(ioc, handle);
+			goto err_out;
+		}
+	}
+
+	if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) {
+		mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
+		mpi_reply = ioc->tm_cmds.reply;
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT "complete tm: " \
+		    "ioc_status(0x%04x), loginfo(0x%08x), term_count(0x%08x)\n",
+		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
+		    le32_to_cpu(mpi_reply->IOCLogInfo),
+		    le32_to_cpu(mpi_reply->TerminationCount)));
+		if (ioc->logging_level & MPT_DEBUG_TM) {
+			_scsih_response_code(ioc, mpi_reply->ResponseCode);
+			if (mpi_reply->IOCStatus)
+				_debug_dump_mf(mpi_request,
+				    sizeof(Mpi2SCSITaskManagementRequest_t)/4);
+		}
+	}
+
+	switch (type) {
+	case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
+		rc = SUCCESS;
+		if (scsi_lookup->scmd == NULL)
+			break;
+		rc = FAILED;
+		break;
+
+	case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
+		if (_scsih_scsi_lookup_find_by_target(ioc, id, channel))
+			rc = FAILED;
+		else
+			rc = SUCCESS;
+		break;
+	case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
+	case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
+		if (_scsih_scsi_lookup_find_by_lun(ioc, id, lun, channel))
+			rc = FAILED;
+		else
+			rc = SUCCESS;
+		break;
+	case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
+		rc = SUCCESS;
+		break;
+	default:
+		rc = FAILED;
+		break;
+	}
+
+	mpt3sas_scsih_clear_tm_flag(ioc, handle);
+	ioc->tm_cmds.status = MPT3_CMD_NOT_USED;
+	if (m_type == TM_MUTEX_ON)
+		mutex_unlock(&ioc->tm_cmds.mutex);
+
+	return rc;
+
+ err_out:
+	if (m_type == TM_MUTEX_ON)
+		mutex_unlock(&ioc->tm_cmds.mutex);
+	return rc;
+}
+
+/**
+ * _scsih_tm_display_info - displays info about the device
+ * @ioc: per adapter struct
+ * @scmd: pointer to scsi command object
+ *
+ * Called by task management callback handlers.
+ */
+static void
+_scsih_tm_display_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd)
+{
+	struct scsi_target *starget = scmd->device->sdev_target;
+	struct MPT3SAS_TARGET *priv_target = starget->hostdata;
+	struct _sas_device *sas_device = NULL;
+	unsigned long flags;
+	char *device_str = NULL;
+
+	if (!priv_target)
+		return;
+	device_str = "volume";
+
+	scsi_print_command(scmd);
+	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
+		starget_printk(KERN_INFO, starget,
+			"%s handle(0x%04x), %s wwid(0x%016llx)\n",
+			device_str, priv_target->handle,
+		    device_str, (unsigned long long)priv_target->sas_address);
+	} else {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+		    priv_target->sas_address);
+		if (sas_device) {
+			if (priv_target->flags &
+			    MPT_TARGET_FLAGS_RAID_COMPONENT) {
+				starget_printk(KERN_INFO, starget,
+				    "volume handle(0x%04x), "
+				    "volume wwid(0x%016llx)\n",
+				    sas_device->volume_handle,
+				   (unsigned long long)sas_device->volume_wwid);
+			}
+			starget_printk(KERN_INFO, starget,
+			    "handle(0x%04x), sas_address(0x%016llx), phy(%d)\n",
+			    sas_device->handle,
+			    (unsigned long long)sas_device->sas_address,
+			    sas_device->phy);
+			starget_printk(KERN_INFO, starget,
+			    "enclosure_logical_id(0x%016llx), slot(%d)\n",
+			   (unsigned long long)sas_device->enclosure_logical_id,
+			    sas_device->slot);
+		}
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	}
+}
+
+/**
+ * _scsih_abort - eh threads main abort routine
+ * @scmd: pointer to scsi command object
+ *
+ * Returns SUCCESS if command aborted else FAILED
+ */
+static int
+_scsih_abort(struct scsi_cmnd *scmd)
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	u16 smid;
+	u16 handle;
+	int r;
+
+	sdev_printk(KERN_INFO, scmd->device,
+		"attempting task abort! scmd(%p)\n", scmd);
+	_scsih_tm_display_info(ioc, scmd);
+
+	sas_device_priv_data = scmd->device->hostdata;
+	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
+		sdev_printk(KERN_INFO, scmd->device,
+			"device been deleted! scmd(%p)\n", scmd);
+		scmd->result = DID_NO_CONNECT << 16;
+		scmd->scsi_done(scmd);
+		r = SUCCESS;
+		goto out;
+	}
+
+	/* search for the command */
+	smid = _scsih_scsi_lookup_find_by_scmd(ioc, scmd);
+	if (!smid) {
+		scmd->result = DID_RESET << 16;
+		r = SUCCESS;
+		goto out;
+	}
+
+	/* for hidden raid components and volumes this is not supported */
+	if (sas_device_priv_data->sas_target->flags &
+	    MPT_TARGET_FLAGS_RAID_COMPONENT ||
+	    sas_device_priv_data->sas_target->flags & MPT_TARGET_FLAGS_VOLUME) {
+		scmd->result = DID_RESET << 16;
+		r = FAILED;
+		goto out;
+	}
+
+	mpt3sas_halt_firmware(ioc);
+
+	handle = sas_device_priv_data->sas_target->handle;
+	r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
+	    scmd->device->id, scmd->device->lun,
+	    MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
+	    scmd->serial_number, TM_MUTEX_ON);
+
+ out:
+	sdev_printk(KERN_INFO, scmd->device, "task abort: %s scmd(%p)\n",
+	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+	return r;
+}
+
+/**
+ * _scsih_dev_reset - eh threads main device reset routine
+ * @scmd: pointer to scsi command object
+ *
+ * Returns SUCCESS if command aborted else FAILED
+ */
+static int
+_scsih_dev_reset(struct scsi_cmnd *scmd)
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct _sas_device *sas_device;
+	unsigned long flags;
+	u16	handle;
+	int r;
+
+	sdev_printk(KERN_INFO, scmd->device,
+		"attempting device reset! scmd(%p)\n", scmd);
+	_scsih_tm_display_info(ioc, scmd);
+
+	sas_device_priv_data = scmd->device->hostdata;
+	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
+		sdev_printk(KERN_INFO, scmd->device,
+			"device been deleted! scmd(%p)\n", scmd);
+		scmd->result = DID_NO_CONNECT << 16;
+		scmd->scsi_done(scmd);
+		r = SUCCESS;
+		goto out;
+	}
+
+	/* for hidden raid components obtain the volume_handle */
+	handle = 0;
+	if (sas_device_priv_data->sas_target->flags &
+	    MPT_TARGET_FLAGS_RAID_COMPONENT) {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = _scsih_sas_device_find_by_handle(ioc,
+		   sas_device_priv_data->sas_target->handle);
+		if (sas_device)
+			handle = sas_device->volume_handle;
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	} else
+		handle = sas_device_priv_data->sas_target->handle;
+
+	if (!handle) {
+		scmd->result = DID_RESET << 16;
+		r = FAILED;
+		goto out;
+	}
+
+	r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
+	    scmd->device->id, scmd->device->lun,
+	    MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 30, 0,
+	    TM_MUTEX_ON);
+
+ out:
+	sdev_printk(KERN_INFO, scmd->device, "device reset: %s scmd(%p)\n",
+	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+	return r;
+}
+
+/**
+ * _scsih_target_reset - eh threads main target reset routine
+ * @scmd: pointer to scsi command object
+ *
+ * Returns SUCCESS if command aborted else FAILED
+ */
+static int
+_scsih_target_reset(struct scsi_cmnd *scmd)
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct _sas_device *sas_device;
+	unsigned long flags;
+	u16	handle;
+	int r;
+	struct scsi_target *starget = scmd->device->sdev_target;
+
+	starget_printk(KERN_INFO, starget, "attempting target reset! scmd(%p)\n",
+		scmd);
+	_scsih_tm_display_info(ioc, scmd);
+
+	sas_device_priv_data = scmd->device->hostdata;
+	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
+		starget_printk(KERN_INFO, starget, "target been deleted! scmd(%p)\n",
+			scmd);
+		scmd->result = DID_NO_CONNECT << 16;
+		scmd->scsi_done(scmd);
+		r = SUCCESS;
+		goto out;
+	}
+
+	/* for hidden raid components obtain the volume_handle */
+	handle = 0;
+	if (sas_device_priv_data->sas_target->flags &
+	    MPT_TARGET_FLAGS_RAID_COMPONENT) {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = _scsih_sas_device_find_by_handle(ioc,
+		   sas_device_priv_data->sas_target->handle);
+		if (sas_device)
+			handle = sas_device->volume_handle;
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	} else
+		handle = sas_device_priv_data->sas_target->handle;
+
+	if (!handle) {
+		scmd->result = DID_RESET << 16;
+		r = FAILED;
+		goto out;
+	}
+
+	r = mpt3sas_scsih_issue_tm(ioc, handle, scmd->device->channel,
+	    scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0,
+	    30, 0, TM_MUTEX_ON);
+
+ out:
+	starget_printk(KERN_INFO, starget, "target reset: %s scmd(%p)\n",
+	    ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+	return r;
+}
+
+
+/**
+ * _scsih_host_reset - eh threads main host reset routine
+ * @scmd: pointer to scsi command object
+ *
+ * Returns SUCCESS if command aborted else FAILED
+ */
+static int
+_scsih_host_reset(struct scsi_cmnd *scmd)
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
+	int r, retval;
+
+	pr_info(MPT3SAS_FMT "attempting host reset! scmd(%p)\n",
+	    ioc->name, scmd);
+	scsi_print_command(scmd);
+
+	retval = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+	    FORCE_BIG_HAMMER);
+	r = (retval < 0) ? FAILED : SUCCESS;
+	pr_info(MPT3SAS_FMT "host reset: %s scmd(%p)\n",
+	    ioc->name, ((r == SUCCESS) ? "SUCCESS" : "FAILED"), scmd);
+
+	return r;
+}
+
+/**
+ * _scsih_fw_event_add - insert and queue up fw_event
+ * @ioc: per adapter object
+ * @fw_event: object describing the event
+ * Context: This function will acquire ioc->fw_event_lock.
+ *
+ * This adds the firmware event object into link list, then queues it up to
+ * be processed from user context.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_fw_event_add(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
+{
+	unsigned long flags;
+
+	if (ioc->firmware_event_thread == NULL)
+		return;
+
+	spin_lock_irqsave(&ioc->fw_event_lock, flags);
+	INIT_LIST_HEAD(&fw_event->list);
+	list_add_tail(&fw_event->list, &ioc->fw_event_list);
+	INIT_WORK(&fw_event->work, _firmware_event_work);
+	queue_work(ioc->firmware_event_thread, &fw_event->work);
+	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+}
+
+/**
+ * _scsih_fw_event_free - delete fw_event
+ * @ioc: per adapter object
+ * @fw_event: object describing the event
+ * Context: This function will acquire ioc->fw_event_lock.
+ *
+ * This removes firmware event object from link list, frees associated memory.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_fw_event_free(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work
+	*fw_event)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->fw_event_lock, flags);
+	list_del(&fw_event->list);
+	kfree(fw_event->event_data);
+	kfree(fw_event);
+	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+}
+
+
+ /**
+ * mpt3sas_send_trigger_data_event - send event for processing trigger data
+ * @ioc: per adapter object
+ * @event_data: trigger event data
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc,
+	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
+{
+	struct fw_event_work *fw_event;
+
+	if (ioc->is_driver_loading)
+		return;
+	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+	if (!fw_event)
+		return;
+	fw_event->event_data = kzalloc(sizeof(*event_data), GFP_ATOMIC);
+	if (!fw_event->event_data)
+		return;
+	fw_event->event = MPT3SAS_PROCESS_TRIGGER_DIAG;
+	fw_event->ioc = ioc;
+	memcpy(fw_event->event_data, event_data, sizeof(*event_data));
+	_scsih_fw_event_add(ioc, fw_event);
+}
+
+/**
+ * _scsih_error_recovery_delete_devices - remove devices not responding
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_scsih_error_recovery_delete_devices(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct fw_event_work *fw_event;
+
+	if (ioc->is_driver_loading)
+		return;
+	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+	if (!fw_event)
+		return;
+	fw_event->event = MPT3SAS_REMOVE_UNRESPONDING_DEVICES;
+	fw_event->ioc = ioc;
+	_scsih_fw_event_add(ioc, fw_event);
+}
+
+/**
+ * mpt3sas_port_enable_complete - port enable completed (fake event)
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_port_enable_complete(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct fw_event_work *fw_event;
+
+	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+	if (!fw_event)
+		return;
+	fw_event->event = MPT3SAS_PORT_ENABLE_COMPLETE;
+	fw_event->ioc = ioc;
+	_scsih_fw_event_add(ioc, fw_event);
+}
+
+/**
+ * _scsih_fw_event_cleanup_queue - cleanup event queue
+ * @ioc: per adapter object
+ *
+ * Walk the firmware event queue, either killing timers, or waiting
+ * for outstanding events to complete
+ *
+ * Return nothing.
+ */
+static void
+_scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct fw_event_work *fw_event, *next;
+
+	if (list_empty(&ioc->fw_event_list) ||
+	     !ioc->firmware_event_thread || in_interrupt())
+		return;
+
+	list_for_each_entry_safe(fw_event, next, &ioc->fw_event_list, list) {
+		if (cancel_delayed_work(&fw_event->delayed_work)) {
+			_scsih_fw_event_free(ioc, fw_event);
+			continue;
+		}
+		fw_event->cancel_pending_work = 1;
+	}
+}
+
+/**
+ * _scsih_ublock_io_all_device - unblock every device
+ * @ioc: per adapter object
+ *
+ * change the device state from block to running
+ */
+static void
+_scsih_ublock_io_all_device(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_device *sdev;
+
+	shost_for_each_device(sdev, ioc->shost) {
+		sas_device_priv_data = sdev->hostdata;
+		if (!sas_device_priv_data)
+			continue;
+		if (!sas_device_priv_data->block)
+			continue;
+
+		sas_device_priv_data->block = 0;
+		dewtprintk(ioc, sdev_printk(KERN_INFO, sdev,
+			"device_running, handle(0x%04x)\n",
+		    sas_device_priv_data->sas_target->handle));
+		scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+	}
+}
+
+
+/**
+ * _scsih_ublock_io_device - prepare device to be deleted
+ * @ioc: per adapter object
+ * @sas_addr: sas address
+ *
+ * unblock then put device in offline state
+ */
+static void
+_scsih_ublock_io_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
+{
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_device *sdev;
+
+	shost_for_each_device(sdev, ioc->shost) {
+		sas_device_priv_data = sdev->hostdata;
+		if (!sas_device_priv_data)
+			continue;
+		if (sas_device_priv_data->sas_target->sas_address
+		    != sas_address)
+			continue;
+		if (sas_device_priv_data->block) {
+			sas_device_priv_data->block = 0;
+			scsi_internal_device_unblock(sdev, SDEV_RUNNING);
+		}
+	}
+}
+
+/**
+ * _scsih_block_io_all_device - set the device state to SDEV_BLOCK
+ * @ioc: per adapter object
+ * @handle: device handle
+ *
+ * During device pull we need to appropiately set the sdev state.
+ */
+static void
+_scsih_block_io_all_device(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_device *sdev;
+
+	shost_for_each_device(sdev, ioc->shost) {
+		sas_device_priv_data = sdev->hostdata;
+		if (!sas_device_priv_data)
+			continue;
+		if (sas_device_priv_data->block)
+			continue;
+		sas_device_priv_data->block = 1;
+		scsi_internal_device_block(sdev);
+		sdev_printk(KERN_INFO, sdev, "device_blocked, handle(0x%04x)\n",
+		    sas_device_priv_data->sas_target->handle);
+	}
+}
+
+/**
+ * _scsih_block_io_device - set the device state to SDEV_BLOCK
+ * @ioc: per adapter object
+ * @handle: device handle
+ *
+ * During device pull we need to appropiately set the sdev state.
+ */
+static void
+_scsih_block_io_device(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_device *sdev;
+
+	shost_for_each_device(sdev, ioc->shost) {
+		sas_device_priv_data = sdev->hostdata;
+		if (!sas_device_priv_data)
+			continue;
+		if (sas_device_priv_data->sas_target->handle != handle)
+			continue;
+		if (sas_device_priv_data->block)
+			continue;
+		sas_device_priv_data->block = 1;
+		scsi_internal_device_block(sdev);
+		sdev_printk(KERN_INFO, sdev,
+			"device_blocked, handle(0x%04x)\n", handle);
+	}
+}
+
+/**
+ * _scsih_block_io_to_children_attached_to_ex
+ * @ioc: per adapter object
+ * @sas_expander: the sas_device object
+ *
+ * This routine set sdev state to SDEV_BLOCK for all devices
+ * attached to this expander. This function called when expander is
+ * pulled.
+ */
+static void
+_scsih_block_io_to_children_attached_to_ex(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_node *sas_expander)
+{
+	struct _sas_port *mpt3sas_port;
+	struct _sas_device *sas_device;
+	struct _sas_node *expander_sibling;
+	unsigned long flags;
+
+	if (!sas_expander)
+		return;
+
+	list_for_each_entry(mpt3sas_port,
+	   &sas_expander->sas_port_list, port_list) {
+		if (mpt3sas_port->remote_identify.device_type ==
+		    SAS_END_DEVICE) {
+			spin_lock_irqsave(&ioc->sas_device_lock, flags);
+			sas_device =
+			    mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+			   mpt3sas_port->remote_identify.sas_address);
+			if (sas_device)
+				set_bit(sas_device->handle,
+				    ioc->blocking_handles);
+			spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		}
+	}
+
+	list_for_each_entry(mpt3sas_port,
+	   &sas_expander->sas_port_list, port_list) {
+
+		if (mpt3sas_port->remote_identify.device_type ==
+		    SAS_EDGE_EXPANDER_DEVICE ||
+		    mpt3sas_port->remote_identify.device_type ==
+		    SAS_FANOUT_EXPANDER_DEVICE) {
+			expander_sibling =
+			    mpt3sas_scsih_expander_find_by_sas_address(
+			    ioc, mpt3sas_port->remote_identify.sas_address);
+			_scsih_block_io_to_children_attached_to_ex(ioc,
+			    expander_sibling);
+		}
+	}
+}
+
+/**
+ * _scsih_block_io_to_children_attached_directly
+ * @ioc: per adapter object
+ * @event_data: topology change event data
+ *
+ * This routine set sdev state to SDEV_BLOCK for all devices
+ * direct attached during device pull.
+ */
+static void
+_scsih_block_io_to_children_attached_directly(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataSasTopologyChangeList_t *event_data)
+{
+	int i;
+	u16 handle;
+	u16 reason_code;
+	u8 phy_number;
+
+	for (i = 0; i < event_data->NumEntries; i++) {
+		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
+		if (!handle)
+			continue;
+		phy_number = event_data->StartPhyNum + i;
+		reason_code = event_data->PHY[i].PhyStatus &
+		    MPI2_EVENT_SAS_TOPO_RC_MASK;
+		if (reason_code == MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING)
+			_scsih_block_io_device(ioc, handle);
+	}
+}
+
+/**
+ * _scsih_tm_tr_send - send task management request
+ * @ioc: per adapter object
+ * @handle: device handle
+ * Context: interrupt time.
+ *
+ * This code is to initiate the device removal handshake protocol
+ * with controller firmware.  This function will issue target reset
+ * using high priority request queue.  It will send a sas iounit
+ * control request (MPI2_SAS_OP_REMOVE_DEVICE) from this completion.
+ *
+ * This is designed to send muliple task management request at the same
+ * time to the fifo. If the fifo is full, we will append the request,
+ * and process it in a future completion.
+ */
+static void
+_scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	Mpi2SCSITaskManagementRequest_t *mpi_request;
+	u16 smid;
+	struct _sas_device *sas_device;
+	struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
+	u64 sas_address = 0;
+	unsigned long flags;
+	struct _tr_list *delayed_tr;
+	u32 ioc_state;
+
+	if (ioc->remove_host) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host has been removed: handle(0x%04x)\n",
+			__func__, ioc->name, handle));
+		return;
+	} else if (ioc->pci_error_recovery) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host in pci error recovery: handle(0x%04x)\n",
+			__func__, ioc->name,
+		    handle));
+		return;
+	}
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host is not operational: handle(0x%04x)\n",
+			__func__, ioc->name,
+		   handle));
+		return;
+	}
+
+	/* if PD, then return */
+	if (test_bit(handle, ioc->pd_handles))
+		return;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+	if (sas_device && sas_device->starget &&
+	    sas_device->starget->hostdata) {
+		sas_target_priv_data = sas_device->starget->hostdata;
+		sas_target_priv_data->deleted = 1;
+		sas_address = sas_device->sas_address;
+	}
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+	if (sas_target_priv_data) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"setting delete flag: handle(0x%04x), sas_addr(0x%016llx)\n",
+			ioc->name, handle,
+		    (unsigned long long)sas_address));
+		_scsih_ublock_io_device(ioc, sas_address);
+		sas_target_priv_data->handle = MPT3SAS_INVALID_DEVICE_HANDLE;
+	}
+
+	smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx);
+	if (!smid) {
+		delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
+		if (!delayed_tr)
+			return;
+		INIT_LIST_HEAD(&delayed_tr->list);
+		delayed_tr->handle = handle;
+		list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		    "DELAYED:tr:handle(0x%04x), (open)\n",
+		    ioc->name, handle));
+		return;
+	}
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
+		ioc->name, handle, smid,
+	    ioc->tm_tr_cb_idx));
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
+	mpi_request->DevHandle = cpu_to_le16(handle);
+	mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
+	mpt3sas_base_put_smid_hi_priority(ioc, smid);
+	mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
+}
+
+/**
+ * _scsih_tm_tr_complete -
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: interrupt time.
+ *
+ * This is the target reset completion routine.
+ * This code is part of the code to initiate the device removal
+ * handshake protocol with controller firmware.
+ * It will send a sas iounit control request (MPI2_SAS_OP_REMOVE_DEVICE)
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply)
+{
+	u16 handle;
+	Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
+	Mpi2SCSITaskManagementReply_t *mpi_reply =
+	    mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	Mpi2SasIoUnitControlRequest_t *mpi_request;
+	u16 smid_sas_ctrl;
+	u32 ioc_state;
+
+	if (ioc->remove_host) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host has been removed\n", __func__, ioc->name));
+		return 1;
+	} else if (ioc->pci_error_recovery) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host in pci error recovery\n", __func__,
+			ioc->name));
+		return 1;
+	}
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host is not operational\n", __func__, ioc->name));
+		return 1;
+	}
+	if (unlikely(!mpi_reply)) {
+		pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return 1;
+	}
+	mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
+	handle = le16_to_cpu(mpi_request_tm->DevHandle);
+	if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
+		dewtprintk(ioc, pr_err(MPT3SAS_FMT
+			"spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
+			ioc->name, handle,
+		    le16_to_cpu(mpi_reply->DevHandle), smid));
+		return 0;
+	}
+
+	mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT);
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+	    "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
+	    "loginfo(0x%08x), completed(%d)\n", ioc->name,
+	    handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
+	    le32_to_cpu(mpi_reply->IOCLogInfo),
+	    le32_to_cpu(mpi_reply->TerminationCount)));
+
+	smid_sas_ctrl = mpt3sas_base_get_smid(ioc, ioc->tm_sas_control_cb_idx);
+	if (!smid_sas_ctrl) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		return 1;
+	}
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"sc_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
+		ioc->name, handle, smid_sas_ctrl,
+	    ioc->tm_sas_control_cb_idx));
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid_sas_ctrl);
+	memset(mpi_request, 0, sizeof(Mpi2SasIoUnitControlRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
+	mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
+	mpi_request->DevHandle = mpi_request_tm->DevHandle;
+	mpt3sas_base_put_smid_default(ioc, smid_sas_ctrl);
+
+	return _scsih_check_for_pending_tm(ioc, smid);
+}
+
+
+/**
+ * _scsih_sas_control_complete - completion routine
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: interrupt time.
+ *
+ * This is the sas iounit control completion routine.
+ * This code is part of the code to initiate the device removal
+ * handshake protocol with controller firmware.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_scsih_sas_control_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	u8 msix_index, u32 reply)
+{
+	Mpi2SasIoUnitControlReply_t *mpi_reply =
+	    mpt3sas_base_get_reply_virt_addr(ioc, reply);
+
+	if (likely(mpi_reply)) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"sc_complete:handle(0x%04x), (open) "
+		"smid(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
+		ioc->name, le16_to_cpu(mpi_reply->DevHandle), smid,
+		le16_to_cpu(mpi_reply->IOCStatus),
+		le32_to_cpu(mpi_reply->IOCLogInfo)));
+	} else {
+		pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+	}
+	return 1;
+}
+
+/**
+ * _scsih_tm_tr_volume_send - send target reset request for volumes
+ * @ioc: per adapter object
+ * @handle: device handle
+ * Context: interrupt time.
+ *
+ * This is designed to send muliple task management request at the same
+ * time to the fifo. If the fifo is full, we will append the request,
+ * and process it in a future completion.
+ */
+static void
+_scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	Mpi2SCSITaskManagementRequest_t *mpi_request;
+	u16 smid;
+	struct _tr_list *delayed_tr;
+
+	if (ioc->shost_recovery || ioc->remove_host ||
+	    ioc->pci_error_recovery) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host reset in progress!\n",
+			__func__, ioc->name));
+		return;
+	}
+
+	smid = mpt3sas_base_get_smid_hpr(ioc, ioc->tm_tr_volume_cb_idx);
+	if (!smid) {
+		delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
+		if (!delayed_tr)
+			return;
+		INIT_LIST_HEAD(&delayed_tr->list);
+		delayed_tr->handle = handle;
+		list_add_tail(&delayed_tr->list, &ioc->delayed_tr_volume_list);
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		    "DELAYED:tr:handle(0x%04x), (open)\n",
+		    ioc->name, handle));
+		return;
+	}
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"tr_send:handle(0x%04x), (open), smid(%d), cb(%d)\n",
+		ioc->name, handle, smid,
+	    ioc->tm_tr_volume_cb_idx));
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memset(mpi_request, 0, sizeof(Mpi2SCSITaskManagementRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
+	mpi_request->DevHandle = cpu_to_le16(handle);
+	mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
+	mpt3sas_base_put_smid_hi_priority(ioc, smid);
+}
+
+/**
+ * _scsih_tm_volume_tr_complete - target reset completion
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: interrupt time.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_scsih_tm_volume_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+	u8 msix_index, u32 reply)
+{
+	u16 handle;
+	Mpi2SCSITaskManagementRequest_t *mpi_request_tm;
+	Mpi2SCSITaskManagementReply_t *mpi_reply =
+	    mpt3sas_base_get_reply_virt_addr(ioc, reply);
+
+	if (ioc->shost_recovery || ioc->remove_host ||
+	    ioc->pci_error_recovery) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: host reset in progress!\n",
+			__func__, ioc->name));
+		return 1;
+	}
+	if (unlikely(!mpi_reply)) {
+		pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return 1;
+	}
+
+	mpi_request_tm = mpt3sas_base_get_msg_frame(ioc, smid);
+	handle = le16_to_cpu(mpi_request_tm->DevHandle);
+	if (handle != le16_to_cpu(mpi_reply->DevHandle)) {
+		dewtprintk(ioc, pr_err(MPT3SAS_FMT
+			"spurious interrupt: handle(0x%04x:0x%04x), smid(%d)!!!\n",
+			ioc->name, handle,
+		    le16_to_cpu(mpi_reply->DevHandle), smid));
+		return 0;
+	}
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+	    "tr_complete:handle(0x%04x), (open) smid(%d), ioc_status(0x%04x), "
+	    "loginfo(0x%08x), completed(%d)\n", ioc->name,
+	    handle, smid, le16_to_cpu(mpi_reply->IOCStatus),
+	    le32_to_cpu(mpi_reply->IOCLogInfo),
+	    le32_to_cpu(mpi_reply->TerminationCount)));
+
+	return _scsih_check_for_pending_tm(ioc, smid);
+}
+
+
+/**
+ * _scsih_check_for_pending_tm - check for pending task management
+ * @ioc: per adapter object
+ * @smid: system request message index
+ *
+ * This will check delayed target reset list, and feed the
+ * next reqeust.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_scsih_check_for_pending_tm(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+{
+	struct _tr_list *delayed_tr;
+
+	if (!list_empty(&ioc->delayed_tr_volume_list)) {
+		delayed_tr = list_entry(ioc->delayed_tr_volume_list.next,
+		    struct _tr_list, list);
+		mpt3sas_base_free_smid(ioc, smid);
+		_scsih_tm_tr_volume_send(ioc, delayed_tr->handle);
+		list_del(&delayed_tr->list);
+		kfree(delayed_tr);
+		return 0;
+	}
+
+	if (!list_empty(&ioc->delayed_tr_list)) {
+		delayed_tr = list_entry(ioc->delayed_tr_list.next,
+		    struct _tr_list, list);
+		mpt3sas_base_free_smid(ioc, smid);
+		_scsih_tm_tr_send(ioc, delayed_tr->handle);
+		list_del(&delayed_tr->list);
+		kfree(delayed_tr);
+		return 0;
+	}
+
+	return 1;
+}
+
+/**
+ * _scsih_check_topo_delete_events - sanity check on topo events
+ * @ioc: per adapter object
+ * @event_data: the event data payload
+ *
+ * This routine added to better handle cable breaker.
+ *
+ * This handles the case where driver receives multiple expander
+ * add and delete events in a single shot.  When there is a delete event
+ * the routine will void any pending add events waiting in the event queue.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_check_topo_delete_events(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataSasTopologyChangeList_t *event_data)
+{
+	struct fw_event_work *fw_event;
+	Mpi2EventDataSasTopologyChangeList_t *local_event_data;
+	u16 expander_handle;
+	struct _sas_node *sas_expander;
+	unsigned long flags;
+	int i, reason_code;
+	u16 handle;
+
+	for (i = 0 ; i < event_data->NumEntries; i++) {
+		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
+		if (!handle)
+			continue;
+		reason_code = event_data->PHY[i].PhyStatus &
+		    MPI2_EVENT_SAS_TOPO_RC_MASK;
+		if (reason_code == MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)
+			_scsih_tm_tr_send(ioc, handle);
+	}
+
+	expander_handle = le16_to_cpu(event_data->ExpanderDevHandle);
+	if (expander_handle < ioc->sas_hba.num_phys) {
+		_scsih_block_io_to_children_attached_directly(ioc, event_data);
+		return;
+	}
+	if (event_data->ExpStatus ==
+	    MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING) {
+		/* put expander attached devices into blocking state */
+		spin_lock_irqsave(&ioc->sas_node_lock, flags);
+		sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
+		    expander_handle);
+		_scsih_block_io_to_children_attached_to_ex(ioc, sas_expander);
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		do {
+			handle = find_first_bit(ioc->blocking_handles,
+			    ioc->facts.MaxDevHandle);
+			if (handle < ioc->facts.MaxDevHandle)
+				_scsih_block_io_device(ioc, handle);
+		} while (test_and_clear_bit(handle, ioc->blocking_handles));
+	} else if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_RESPONDING)
+		_scsih_block_io_to_children_attached_directly(ioc, event_data);
+
+	if (event_data->ExpStatus != MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING)
+		return;
+
+	/* mark ignore flag for pending events */
+	spin_lock_irqsave(&ioc->fw_event_lock, flags);
+	list_for_each_entry(fw_event, &ioc->fw_event_list, list) {
+		if (fw_event->event != MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
+		    fw_event->ignore)
+			continue;
+		local_event_data = fw_event->event_data;
+		if (local_event_data->ExpStatus ==
+		    MPI2_EVENT_SAS_TOPO_ES_ADDED ||
+		    local_event_data->ExpStatus ==
+		    MPI2_EVENT_SAS_TOPO_ES_RESPONDING) {
+			if (le16_to_cpu(local_event_data->ExpanderDevHandle) ==
+			    expander_handle) {
+				dewtprintk(ioc, pr_info(MPT3SAS_FMT
+				    "setting ignoring flag\n", ioc->name));
+				fw_event->ignore = 1;
+			}
+		}
+	}
+	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+}
+
+/**
+ * _scsih_set_volume_delete_flag - setting volume delete flag
+ * @ioc: per adapter object
+ * @handle: device handle
+ *
+ * This returns nothing.
+ */
+static void
+_scsih_set_volume_delete_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _raid_device *raid_device;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
+	if (raid_device && raid_device->starget &&
+	    raid_device->starget->hostdata) {
+		sas_target_priv_data =
+		    raid_device->starget->hostdata;
+		sas_target_priv_data->deleted = 1;
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		    "setting delete flag: handle(0x%04x), "
+		    "wwid(0x%016llx)\n", ioc->name, handle,
+		    (unsigned long long) raid_device->wwid));
+	}
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+}
+
+/**
+ * _scsih_set_volume_handle_for_tr - set handle for target reset to volume
+ * @handle: input handle
+ * @a: handle for volume a
+ * @b: handle for volume b
+ *
+ * IR firmware only supports two raid volumes.  The purpose of this
+ * routine is to set the volume handle in either a or b. When the given
+ * input handle is non-zero, or when a and b have not been set before.
+ */
+static void
+_scsih_set_volume_handle_for_tr(u16 handle, u16 *a, u16 *b)
+{
+	if (!handle || handle == *a || handle == *b)
+		return;
+	if (!*a)
+		*a = handle;
+	else if (!*b)
+		*b = handle;
+}
+
+/**
+ * _scsih_check_ir_config_unhide_events - check for UNHIDE events
+ * @ioc: per adapter object
+ * @event_data: the event data payload
+ * Context: interrupt time.
+ *
+ * This routine will send target reset to volume, followed by target
+ * resets to the PDs. This is called when a PD has been removed, or
+ * volume has been deleted or removed. When the target reset is sent
+ * to volume, the PD target resets need to be queued to start upon
+ * completion of the volume target reset.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_check_ir_config_unhide_events(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataIrConfigChangeList_t *event_data)
+{
+	Mpi2EventIrConfigElement_t *element;
+	int i;
+	u16 handle, volume_handle, a, b;
+	struct _tr_list *delayed_tr;
+
+	a = 0;
+	b = 0;
+
+	/* Volume Resets for Deleted or Removed */
+	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
+	for (i = 0; i < event_data->NumElements; i++, element++) {
+		if (le32_to_cpu(event_data->Flags) &
+		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
+			continue;
+		if (element->ReasonCode ==
+		    MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED ||
+		    element->ReasonCode ==
+		    MPI2_EVENT_IR_CHANGE_RC_REMOVED) {
+			volume_handle = le16_to_cpu(element->VolDevHandle);
+			_scsih_set_volume_delete_flag(ioc, volume_handle);
+			_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
+		}
+	}
+
+	/* Volume Resets for UNHIDE events */
+	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
+	for (i = 0; i < event_data->NumElements; i++, element++) {
+		if (le32_to_cpu(event_data->Flags) &
+		    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG)
+			continue;
+		if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_UNHIDE) {
+			volume_handle = le16_to_cpu(element->VolDevHandle);
+			_scsih_set_volume_handle_for_tr(volume_handle, &a, &b);
+		}
+	}
+
+	if (a)
+		_scsih_tm_tr_volume_send(ioc, a);
+	if (b)
+		_scsih_tm_tr_volume_send(ioc, b);
+
+	/* PD target resets */
+	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
+	for (i = 0; i < event_data->NumElements; i++, element++) {
+		if (element->ReasonCode != MPI2_EVENT_IR_CHANGE_RC_UNHIDE)
+			continue;
+		handle = le16_to_cpu(element->PhysDiskDevHandle);
+		volume_handle = le16_to_cpu(element->VolDevHandle);
+		clear_bit(handle, ioc->pd_handles);
+		if (!volume_handle)
+			_scsih_tm_tr_send(ioc, handle);
+		else if (volume_handle == a || volume_handle == b) {
+			delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC);
+			BUG_ON(!delayed_tr);
+			INIT_LIST_HEAD(&delayed_tr->list);
+			delayed_tr->handle = handle;
+			list_add_tail(&delayed_tr->list, &ioc->delayed_tr_list);
+			dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			    "DELAYED:tr:handle(0x%04x), (open)\n", ioc->name,
+			    handle));
+		} else
+			_scsih_tm_tr_send(ioc, handle);
+	}
+}
+
+
+/**
+ * _scsih_check_volume_delete_events - set delete flag for volumes
+ * @ioc: per adapter object
+ * @event_data: the event data payload
+ * Context: interrupt time.
+ *
+ * This will handle the case when the cable connected to entire volume is
+ * pulled. We will take care of setting the deleted flag so normal IO will
+ * not be sent.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_check_volume_delete_events(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataIrVolume_t *event_data)
+{
+	u32 state;
+
+	if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
+		return;
+	state = le32_to_cpu(event_data->NewValue);
+	if (state == MPI2_RAID_VOL_STATE_MISSING || state ==
+	    MPI2_RAID_VOL_STATE_FAILED)
+		_scsih_set_volume_delete_flag(ioc,
+		    le16_to_cpu(event_data->VolDevHandle));
+}
+
+/**
+ * _scsih_flush_running_cmds - completing outstanding commands.
+ * @ioc: per adapter object
+ *
+ * The flushing out of all pending scmd commands following host reset,
+ * where all IO is dropped to the floor.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_flush_running_cmds(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct scsi_cmnd *scmd;
+	u16 smid;
+	u16 count = 0;
+
+	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
+		scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
+		if (!scmd)
+			continue;
+		count++;
+		mpt3sas_base_free_smid(ioc, smid);
+		scsi_dma_unmap(scmd);
+		if (ioc->pci_error_recovery)
+			scmd->result = DID_NO_CONNECT << 16;
+		else
+			scmd->result = DID_RESET << 16;
+		scmd->scsi_done(scmd);
+	}
+	dtmprintk(ioc, pr_info(MPT3SAS_FMT "completing %d cmds\n",
+	    ioc->name, count));
+}
+
+/**
+ * _scsih_setup_eedp - setup MPI request for EEDP transfer
+ * @ioc: per adapter object
+ * @scmd: pointer to scsi command object
+ * @mpi_request: pointer to the SCSI_IO reqest message frame
+ *
+ * Supporting protection 1 and 3.
+ *
+ * Returns nothing
+ */
+static void
+_scsih_setup_eedp(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
+	Mpi2SCSIIORequest_t *mpi_request)
+{
+	u16 eedp_flags;
+	unsigned char prot_op = scsi_get_prot_op(scmd);
+	unsigned char prot_type = scsi_get_prot_type(scmd);
+	Mpi25SCSIIORequest_t *mpi_request_3v =
+	   (Mpi25SCSIIORequest_t *)mpi_request;
+
+	if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
+		return;
+
+	if (prot_op ==  SCSI_PROT_READ_STRIP)
+		eedp_flags = MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP;
+	else if (prot_op ==  SCSI_PROT_WRITE_INSERT)
+		eedp_flags = MPI2_SCSIIO_EEDPFLAGS_INSERT_OP;
+	else
+		return;
+
+	switch (prot_type) {
+	case SCSI_PROT_DIF_TYPE1:
+	case SCSI_PROT_DIF_TYPE2:
+
+		/*
+		* enable ref/guard checking
+		* auto increment ref tag
+		*/
+		eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
+		    MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
+		    MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
+		mpi_request->CDB.EEDP32.PrimaryReferenceTag =
+		    cpu_to_be32(scsi_get_lba(scmd));
+		break;
+
+	case SCSI_PROT_DIF_TYPE3:
+
+		/*
+		* enable guard checking
+		*/
+		eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
+
+		break;
+	}
+
+	mpi_request_3v->EEDPBlockSize =
+	    cpu_to_le16(scmd->device->sector_size);
+	mpi_request->EEDPFlags = cpu_to_le16(eedp_flags);
+}
+
+/**
+ * _scsih_eedp_error_handling - return sense code for EEDP errors
+ * @scmd: pointer to scsi command object
+ * @ioc_status: ioc status
+ *
+ * Returns nothing
+ */
+static void
+_scsih_eedp_error_handling(struct scsi_cmnd *scmd, u16 ioc_status)
+{
+	u8 ascq;
+
+	switch (ioc_status) {
+	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
+		ascq = 0x01;
+		break;
+	case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
+		ascq = 0x02;
+		break;
+	case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
+		ascq = 0x03;
+		break;
+	default:
+		ascq = 0x00;
+		break;
+	}
+	scsi_build_sense_buffer(0, scmd->sense_buffer, ILLEGAL_REQUEST, 0x10,
+	    ascq);
+	scmd->result = DRIVER_SENSE << 24 | (DID_ABORT << 16) |
+	    SAM_STAT_CHECK_CONDITION;
+}
+
+
+/**
+ * _scsih_qcmd_lck - main scsi request entry point
+ * @scmd: pointer to scsi command object
+ * @done: function pointer to be invoked on completion
+ *
+ * The callback index is set inside `ioc->scsi_io_cb_idx`.
+ *
+ * Returns 0 on success.  If there's a failure, return either:
+ * SCSI_MLQUEUE_DEVICE_BUSY if the device queue is full, or
+ * SCSI_MLQUEUE_HOST_BUSY if the entire host queue is full
+ */
+static int
+_scsih_qcmd_lck(struct scsi_cmnd *scmd, void (*done)(struct scsi_cmnd *))
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(scmd->device->host);
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	Mpi2SCSIIORequest_t *mpi_request;
+	u32 mpi_control;
+	u16 smid;
+	u16 handle;
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (ioc->logging_level & MPT_DEBUG_SCSI)
+		scsi_print_command(scmd);
+#endif
+
+	scmd->scsi_done = done;
+	sas_device_priv_data = scmd->device->hostdata;
+	if (!sas_device_priv_data || !sas_device_priv_data->sas_target) {
+		scmd->result = DID_NO_CONNECT << 16;
+		scmd->scsi_done(scmd);
+		return 0;
+	}
+
+	if (ioc->pci_error_recovery || ioc->remove_host) {
+		scmd->result = DID_NO_CONNECT << 16;
+		scmd->scsi_done(scmd);
+		return 0;
+	}
+
+	sas_target_priv_data = sas_device_priv_data->sas_target;
+
+	/* invalid device handle */
+	handle = sas_target_priv_data->handle;
+	if (handle == MPT3SAS_INVALID_DEVICE_HANDLE) {
+		scmd->result = DID_NO_CONNECT << 16;
+		scmd->scsi_done(scmd);
+		return 0;
+	}
+
+
+	/* host recovery or link resets sent via IOCTLs */
+	if (ioc->shost_recovery || ioc->ioc_link_reset_in_progress)
+		return SCSI_MLQUEUE_HOST_BUSY;
+
+	/* device has been deleted */
+	else if (sas_target_priv_data->deleted) {
+		scmd->result = DID_NO_CONNECT << 16;
+		scmd->scsi_done(scmd);
+		return 0;
+	/* device busy with task managment */
+	} else if (sas_target_priv_data->tm_busy ||
+	    sas_device_priv_data->block)
+		return SCSI_MLQUEUE_DEVICE_BUSY;
+
+	if (scmd->sc_data_direction == DMA_FROM_DEVICE)
+		mpi_control = MPI2_SCSIIO_CONTROL_READ;
+	else if (scmd->sc_data_direction == DMA_TO_DEVICE)
+		mpi_control = MPI2_SCSIIO_CONTROL_WRITE;
+	else
+		mpi_control = MPI2_SCSIIO_CONTROL_NODATATRANSFER;
+
+	/* set tags */
+	if (!(sas_device_priv_data->flags & MPT_DEVICE_FLAGS_INIT)) {
+		if (scmd->device->tagged_supported) {
+			if (scmd->device->ordered_tags)
+				mpi_control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
+			else
+				mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
+		} else
+			mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
+	} else
+		mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
+
+	if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
+	    scmd->cmd_len != 32)
+		mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
+
+	smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		goto out;
+	}
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
+	_scsih_setup_eedp(ioc, scmd, mpi_request);
+
+	if (scmd->cmd_len == 32)
+		mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
+	mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
+	if (sas_device_priv_data->sas_target->flags &
+	    MPT_TARGET_FLAGS_RAID_COMPONENT)
+		mpi_request->Function = MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH;
+	else
+		mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
+	mpi_request->DevHandle = cpu_to_le16(handle);
+	mpi_request->DataLength = cpu_to_le32(scsi_bufflen(scmd));
+	mpi_request->Control = cpu_to_le32(mpi_control);
+	mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len);
+	mpi_request->MsgFlags = MPI2_SCSIIO_MSGFLAGS_SYSTEM_SENSE_ADDR;
+	mpi_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
+	mpi_request->SenseBufferLowAddress =
+	    mpt3sas_base_get_sense_buffer_dma(ioc, smid);
+	mpi_request->SGLOffset0 = offsetof(Mpi2SCSIIORequest_t, SGL) / 4;
+	int_to_scsilun(sas_device_priv_data->lun, (struct scsi_lun *)
+	    mpi_request->LUN);
+	memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len);
+
+	if (mpi_request->DataLength) {
+		if (ioc->build_sg_scmd(ioc, scmd, smid)) {
+			mpt3sas_base_free_smid(ioc, smid);
+			goto out;
+		}
+	} else
+		ioc->build_zero_len_sge(ioc, &mpi_request->SGL);
+
+	if (likely(mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)) {
+		if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
+			mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
+			    MPI25_SCSIIO_IOFLAGS_FAST_PATH);
+			mpt3sas_base_put_smid_fast_path(ioc, smid, handle);
+		} else
+			mpt3sas_base_put_smid_scsi_io(ioc, smid, handle);
+	} else
+		mpt3sas_base_put_smid_default(ioc, smid);
+	return 0;
+
+ out:
+	return SCSI_MLQUEUE_HOST_BUSY;
+}
+static DEF_SCSI_QCMD(_scsih_qcmd)
+
+
+/**
+ * _scsih_normalize_sense - normalize descriptor and fixed format sense data
+ * @sense_buffer: sense data returned by target
+ * @data: normalized skey/asc/ascq
+ *
+ * Return nothing.
+ */
+static void
+_scsih_normalize_sense(char *sense_buffer, struct sense_info *data)
+{
+	if ((sense_buffer[0] & 0x7F) >= 0x72) {
+		/* descriptor format */
+		data->skey = sense_buffer[1] & 0x0F;
+		data->asc = sense_buffer[2];
+		data->ascq = sense_buffer[3];
+	} else {
+		/* fixed format */
+		data->skey = sense_buffer[2] & 0x0F;
+		data->asc = sense_buffer[12];
+		data->ascq = sense_buffer[13];
+	}
+}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _scsih_scsi_ioc_info - translated non-succesfull SCSI_IO request
+ * @ioc: per adapter object
+ * @scmd: pointer to scsi command object
+ * @mpi_reply: reply mf payload returned from firmware
+ *
+ * scsi_status - SCSI Status code returned from target device
+ * scsi_state - state info associated with SCSI_IO determined by ioc
+ * ioc_status - ioc supplied status info
+ *
+ * Return nothing.
+ */
+static void
+_scsih_scsi_ioc_info(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
+	Mpi2SCSIIOReply_t *mpi_reply, u16 smid)
+{
+	u32 response_info;
+	u8 *response_bytes;
+	u16 ioc_status = le16_to_cpu(mpi_reply->IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	u8 scsi_state = mpi_reply->SCSIState;
+	u8 scsi_status = mpi_reply->SCSIStatus;
+	char *desc_ioc_state = NULL;
+	char *desc_scsi_status = NULL;
+	char *desc_scsi_state = ioc->tmp_string;
+	u32 log_info = le32_to_cpu(mpi_reply->IOCLogInfo);
+	struct _sas_device *sas_device = NULL;
+	unsigned long flags;
+	struct scsi_target *starget = scmd->device->sdev_target;
+	struct MPT3SAS_TARGET *priv_target = starget->hostdata;
+	char *device_str = NULL;
+
+	if (!priv_target)
+		return;
+	device_str = "volume";
+
+	if (log_info == 0x31170000)
+		return;
+
+	switch (ioc_status) {
+	case MPI2_IOCSTATUS_SUCCESS:
+		desc_ioc_state = "success";
+		break;
+	case MPI2_IOCSTATUS_INVALID_FUNCTION:
+		desc_ioc_state = "invalid function";
+		break;
+	case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
+		desc_ioc_state = "scsi recovered error";
+		break;
+	case MPI2_IOCSTATUS_SCSI_INVALID_DEVHANDLE:
+		desc_ioc_state = "scsi invalid dev handle";
+		break;
+	case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
+		desc_ioc_state = "scsi device not there";
+		break;
+	case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
+		desc_ioc_state = "scsi data overrun";
+		break;
+	case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
+		desc_ioc_state = "scsi data underrun";
+		break;
+	case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
+		desc_ioc_state = "scsi io data error";
+		break;
+	case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
+		desc_ioc_state = "scsi protocol error";
+		break;
+	case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
+		desc_ioc_state = "scsi task terminated";
+		break;
+	case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
+		desc_ioc_state = "scsi residual mismatch";
+		break;
+	case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
+		desc_ioc_state = "scsi task mgmt failed";
+		break;
+	case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
+		desc_ioc_state = "scsi ioc terminated";
+		break;
+	case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
+		desc_ioc_state = "scsi ext terminated";
+		break;
+	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
+		desc_ioc_state = "eedp guard error";
+		break;
+	case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
+		desc_ioc_state = "eedp ref tag error";
+		break;
+	case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
+		desc_ioc_state = "eedp app tag error";
+		break;
+	default:
+		desc_ioc_state = "unknown";
+		break;
+	}
+
+	switch (scsi_status) {
+	case MPI2_SCSI_STATUS_GOOD:
+		desc_scsi_status = "good";
+		break;
+	case MPI2_SCSI_STATUS_CHECK_CONDITION:
+		desc_scsi_status = "check condition";
+		break;
+	case MPI2_SCSI_STATUS_CONDITION_MET:
+		desc_scsi_status = "condition met";
+		break;
+	case MPI2_SCSI_STATUS_BUSY:
+		desc_scsi_status = "busy";
+		break;
+	case MPI2_SCSI_STATUS_INTERMEDIATE:
+		desc_scsi_status = "intermediate";
+		break;
+	case MPI2_SCSI_STATUS_INTERMEDIATE_CONDMET:
+		desc_scsi_status = "intermediate condmet";
+		break;
+	case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
+		desc_scsi_status = "reservation conflict";
+		break;
+	case MPI2_SCSI_STATUS_COMMAND_TERMINATED:
+		desc_scsi_status = "command terminated";
+		break;
+	case MPI2_SCSI_STATUS_TASK_SET_FULL:
+		desc_scsi_status = "task set full";
+		break;
+	case MPI2_SCSI_STATUS_ACA_ACTIVE:
+		desc_scsi_status = "aca active";
+		break;
+	case MPI2_SCSI_STATUS_TASK_ABORTED:
+		desc_scsi_status = "task aborted";
+		break;
+	default:
+		desc_scsi_status = "unknown";
+		break;
+	}
+
+	desc_scsi_state[0] = '\0';
+	if (!scsi_state)
+		desc_scsi_state = " ";
+	if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
+		strcat(desc_scsi_state, "response info ");
+	if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
+		strcat(desc_scsi_state, "state terminated ");
+	if (scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS)
+		strcat(desc_scsi_state, "no status ");
+	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_FAILED)
+		strcat(desc_scsi_state, "autosense failed ");
+	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID)
+		strcat(desc_scsi_state, "autosense valid ");
+
+	scsi_print_command(scmd);
+
+	if (priv_target->flags & MPT_TARGET_FLAGS_VOLUME) {
+		pr_warn(MPT3SAS_FMT "\t%s wwid(0x%016llx)\n", ioc->name,
+		    device_str, (unsigned long long)priv_target->sas_address);
+	} else {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+		    priv_target->sas_address);
+		if (sas_device) {
+			pr_warn(MPT3SAS_FMT
+				"\tsas_address(0x%016llx), phy(%d)\n",
+				ioc->name, (unsigned long long)
+			    sas_device->sas_address, sas_device->phy);
+			pr_warn(MPT3SAS_FMT
+			    "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
+			    ioc->name, (unsigned long long)
+			    sas_device->enclosure_logical_id, sas_device->slot);
+		}
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	}
+
+	pr_warn(MPT3SAS_FMT
+		"\thandle(0x%04x), ioc_status(%s)(0x%04x), smid(%d)\n",
+		ioc->name, le16_to_cpu(mpi_reply->DevHandle),
+	    desc_ioc_state, ioc_status, smid);
+	pr_warn(MPT3SAS_FMT
+		"\trequest_len(%d), underflow(%d), resid(%d)\n",
+		ioc->name, scsi_bufflen(scmd), scmd->underflow,
+	    scsi_get_resid(scmd));
+	pr_warn(MPT3SAS_FMT
+		"\ttag(%d), transfer_count(%d), sc->result(0x%08x)\n",
+		ioc->name, le16_to_cpu(mpi_reply->TaskTag),
+	    le32_to_cpu(mpi_reply->TransferCount), scmd->result);
+	pr_warn(MPT3SAS_FMT
+		"\tscsi_status(%s)(0x%02x), scsi_state(%s)(0x%02x)\n",
+		ioc->name, desc_scsi_status,
+	    scsi_status, desc_scsi_state, scsi_state);
+
+	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
+		struct sense_info data;
+		_scsih_normalize_sense(scmd->sense_buffer, &data);
+		pr_warn(MPT3SAS_FMT
+			"\t[sense_key,asc,ascq]: [0x%02x,0x%02x,0x%02x], count(%d)\n",
+			ioc->name, data.skey,
+		    data.asc, data.ascq, le32_to_cpu(mpi_reply->SenseCount));
+	}
+
+	if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
+		response_info = le32_to_cpu(mpi_reply->ResponseInfo);
+		response_bytes = (u8 *)&response_info;
+		_scsih_response_code(ioc, response_bytes[0]);
+	}
+}
+#endif
+
+/**
+ * _scsih_turn_on_fault_led - illuminate Fault LED
+ * @ioc: per adapter object
+ * @handle: device handle
+ * Context: process
+ *
+ * Return nothing.
+ */
+static void
+_scsih_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	Mpi2SepReply_t mpi_reply;
+	Mpi2SepRequest_t mpi_request;
+
+	memset(&mpi_request, 0, sizeof(Mpi2SepRequest_t));
+	mpi_request.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
+	mpi_request.Action = MPI2_SEP_REQ_ACTION_WRITE_STATUS;
+	mpi_request.SlotStatus =
+	    cpu_to_le32(MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT);
+	mpi_request.DevHandle = cpu_to_le16(handle);
+	mpi_request.Flags = MPI2_SEP_REQ_FLAGS_DEVHANDLE_ADDRESS;
+	if ((mpt3sas_base_scsi_enclosure_processor(ioc, &mpi_reply,
+	    &mpi_request)) != 0) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n", ioc->name,
+		__FILE__, __LINE__, __func__);
+		return;
+	}
+
+	if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"enclosure_processor: ioc_status (0x%04x), loginfo(0x%08x)\n",
+			ioc->name, le16_to_cpu(mpi_reply.IOCStatus),
+		    le32_to_cpu(mpi_reply.IOCLogInfo)));
+		return;
+	}
+}
+
+/**
+ * _scsih_send_event_to_turn_on_fault_led - fire delayed event
+ * @ioc: per adapter object
+ * @handle: device handle
+ * Context: interrupt.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_send_event_to_turn_on_fault_led(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct fw_event_work *fw_event;
+
+	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+	if (!fw_event)
+		return;
+	fw_event->event = MPT3SAS_TURN_ON_FAULT_LED;
+	fw_event->device_handle = handle;
+	fw_event->ioc = ioc;
+	_scsih_fw_event_add(ioc, fw_event);
+}
+
+/**
+ * _scsih_smart_predicted_fault - process smart errors
+ * @ioc: per adapter object
+ * @handle: device handle
+ * Context: interrupt.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_smart_predicted_fault(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct scsi_target *starget;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	Mpi2EventNotificationReply_t *event_reply;
+	Mpi2EventDataSasDeviceStatusChange_t *event_data;
+	struct _sas_device *sas_device;
+	ssize_t sz;
+	unsigned long flags;
+
+	/* only handle non-raid devices */
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+	if (!sas_device) {
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		return;
+	}
+	starget = sas_device->starget;
+	sas_target_priv_data = starget->hostdata;
+
+	if ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) ||
+	   ((sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME))) {
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		return;
+	}
+	starget_printk(KERN_WARNING, starget, "predicted fault\n");
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+	if (ioc->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
+		_scsih_send_event_to_turn_on_fault_led(ioc, handle);
+
+	/* insert into event log */
+	sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
+	     sizeof(Mpi2EventDataSasDeviceStatusChange_t);
+	event_reply = kzalloc(sz, GFP_KERNEL);
+	if (!event_reply) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	event_reply->Function = MPI2_FUNCTION_EVENT_NOTIFICATION;
+	event_reply->Event =
+	    cpu_to_le16(MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE);
+	event_reply->MsgLength = sz/4;
+	event_reply->EventDataLength =
+	    cpu_to_le16(sizeof(Mpi2EventDataSasDeviceStatusChange_t)/4);
+	event_data = (Mpi2EventDataSasDeviceStatusChange_t *)
+	    event_reply->EventData;
+	event_data->ReasonCode = MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA;
+	event_data->ASC = 0x5D;
+	event_data->DevHandle = cpu_to_le16(handle);
+	event_data->SASAddress = cpu_to_le64(sas_target_priv_data->sas_address);
+	mpt3sas_ctl_add_to_event_log(ioc, event_reply);
+	kfree(event_reply);
+}
+
+/**
+ * _scsih_io_done - scsi request callback
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Callback handler when using _scsih_qcmd.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
+{
+	Mpi2SCSIIORequest_t *mpi_request;
+	Mpi2SCSIIOReply_t *mpi_reply;
+	struct scsi_cmnd *scmd;
+	u16 ioc_status;
+	u32 xfer_cnt;
+	u8 scsi_state;
+	u8 scsi_status;
+	u32 log_info;
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	u32 response_code = 0;
+
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	scmd = _scsih_scsi_lookup_get_clear(ioc, smid);
+	if (scmd == NULL)
+		return 1;
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+
+	if (mpi_reply == NULL) {
+		scmd->result = DID_OK << 16;
+		goto out;
+	}
+
+	sas_device_priv_data = scmd->device->hostdata;
+	if (!sas_device_priv_data || !sas_device_priv_data->sas_target ||
+	     sas_device_priv_data->sas_target->deleted) {
+		scmd->result = DID_NO_CONNECT << 16;
+		goto out;
+	}
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
+
+	/* turning off TLR */
+	scsi_state = mpi_reply->SCSIState;
+	if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID)
+		response_code =
+		    le32_to_cpu(mpi_reply->ResponseInfo) & 0xFF;
+	if (!sas_device_priv_data->tlr_snoop_check) {
+		sas_device_priv_data->tlr_snoop_check++;
+		if ((sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
+		    response_code == MPI2_SCSITASKMGMT_RSP_INVALID_FRAME)
+			sas_device_priv_data->flags &=
+			    ~MPT_DEVICE_TLR_ON;
+	}
+
+	xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
+	scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
+	if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
+		log_info =  le32_to_cpu(mpi_reply->IOCLogInfo);
+	else
+		log_info = 0;
+	ioc_status &= MPI2_IOCSTATUS_MASK;
+	scsi_status = mpi_reply->SCSIStatus;
+
+	if (ioc_status == MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN && xfer_cnt == 0 &&
+	    (scsi_status == MPI2_SCSI_STATUS_BUSY ||
+	     scsi_status == MPI2_SCSI_STATUS_RESERVATION_CONFLICT ||
+	     scsi_status == MPI2_SCSI_STATUS_TASK_SET_FULL)) {
+		ioc_status = MPI2_IOCSTATUS_SUCCESS;
+	}
+
+	if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
+		struct sense_info data;
+		const void *sense_data = mpt3sas_base_get_sense_buffer(ioc,
+		    smid);
+		u32 sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
+		    le32_to_cpu(mpi_reply->SenseCount));
+		memcpy(scmd->sense_buffer, sense_data, sz);
+		_scsih_normalize_sense(scmd->sense_buffer, &data);
+		/* failure prediction threshold exceeded */
+		if (data.asc == 0x5D)
+			_scsih_smart_predicted_fault(ioc,
+			    le16_to_cpu(mpi_reply->DevHandle));
+		mpt3sas_trigger_scsi(ioc, data.skey, data.asc, data.ascq);
+	}
+
+	switch (ioc_status) {
+	case MPI2_IOCSTATUS_BUSY:
+	case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
+		scmd->result = SAM_STAT_BUSY;
+		break;
+
+	case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
+		scmd->result = DID_NO_CONNECT << 16;
+		break;
+
+	case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
+		if (sas_device_priv_data->block) {
+			scmd->result = DID_TRANSPORT_DISRUPTED << 16;
+			goto out;
+		}
+		if (log_info == 0x31110630) {
+			if (scmd->retries > 2) {
+				scmd->result = DID_NO_CONNECT << 16;
+				scsi_device_set_state(scmd->device,
+				    SDEV_OFFLINE);
+			} else {
+				scmd->result = DID_SOFT_ERROR << 16;
+				scmd->device->expecting_cc_ua = 1;
+			}
+			break;
+		}
+		scmd->result = DID_SOFT_ERROR << 16;
+		break;
+	case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
+	case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
+		scmd->result = DID_RESET << 16;
+		break;
+
+	case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
+		if ((xfer_cnt == 0) || (scmd->underflow > xfer_cnt))
+			scmd->result = DID_SOFT_ERROR << 16;
+		else
+			scmd->result = (DID_OK << 16) | scsi_status;
+		break;
+
+	case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
+		scmd->result = (DID_OK << 16) | scsi_status;
+
+		if ((scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID))
+			break;
+
+		if (xfer_cnt < scmd->underflow) {
+			if (scsi_status == SAM_STAT_BUSY)
+				scmd->result = SAM_STAT_BUSY;
+			else
+				scmd->result = DID_SOFT_ERROR << 16;
+		} else if (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
+		     MPI2_SCSI_STATE_NO_SCSI_STATUS))
+			scmd->result = DID_SOFT_ERROR << 16;
+		else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
+			scmd->result = DID_RESET << 16;
+		else if (!xfer_cnt && scmd->cmnd[0] == REPORT_LUNS) {
+			mpi_reply->SCSIState = MPI2_SCSI_STATE_AUTOSENSE_VALID;
+			mpi_reply->SCSIStatus = SAM_STAT_CHECK_CONDITION;
+			scmd->result = (DRIVER_SENSE << 24) |
+			    SAM_STAT_CHECK_CONDITION;
+			scmd->sense_buffer[0] = 0x70;
+			scmd->sense_buffer[2] = ILLEGAL_REQUEST;
+			scmd->sense_buffer[12] = 0x20;
+			scmd->sense_buffer[13] = 0;
+		}
+		break;
+
+	case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
+		scsi_set_resid(scmd, 0);
+	case MPI2_IOCSTATUS_SCSI_RECOVERED_ERROR:
+	case MPI2_IOCSTATUS_SUCCESS:
+		scmd->result = (DID_OK << 16) | scsi_status;
+		if (response_code ==
+		    MPI2_SCSITASKMGMT_RSP_INVALID_FRAME ||
+		    (scsi_state & (MPI2_SCSI_STATE_AUTOSENSE_FAILED |
+		     MPI2_SCSI_STATE_NO_SCSI_STATUS)))
+			scmd->result = DID_SOFT_ERROR << 16;
+		else if (scsi_state & MPI2_SCSI_STATE_TERMINATED)
+			scmd->result = DID_RESET << 16;
+		break;
+
+	case MPI2_IOCSTATUS_EEDP_GUARD_ERROR:
+	case MPI2_IOCSTATUS_EEDP_REF_TAG_ERROR:
+	case MPI2_IOCSTATUS_EEDP_APP_TAG_ERROR:
+		_scsih_eedp_error_handling(scmd, ioc_status);
+		break;
+
+	case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
+	case MPI2_IOCSTATUS_INVALID_FUNCTION:
+	case MPI2_IOCSTATUS_INVALID_SGL:
+	case MPI2_IOCSTATUS_INTERNAL_ERROR:
+	case MPI2_IOCSTATUS_INVALID_FIELD:
+	case MPI2_IOCSTATUS_INVALID_STATE:
+	case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
+	case MPI2_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
+	default:
+		scmd->result = DID_SOFT_ERROR << 16;
+		break;
+
+	}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (scmd->result && (ioc->logging_level & MPT_DEBUG_REPLY))
+		_scsih_scsi_ioc_info(ioc , scmd, mpi_reply, smid);
+#endif
+
+ out:
+
+	scsi_dma_unmap(scmd);
+
+	scmd->scsi_done(scmd);
+	return 1;
+}
+
+/**
+ * _scsih_sas_host_refresh - refreshing sas host object contents
+ * @ioc: per adapter object
+ * Context: user
+ *
+ * During port enable, fw will send topology events for every device. Its
+ * possible that the handles may change from the previous setting, so this
+ * code keeping handles updating if changed.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_host_refresh(struct MPT3SAS_ADAPTER *ioc)
+{
+	u16 sz;
+	u16 ioc_status;
+	int i;
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
+	u16 attached_handle;
+	u8 link_rate;
+
+	dtmprintk(ioc, pr_info(MPT3SAS_FMT
+	    "updating handles for sas_host(0x%016llx)\n",
+	    ioc->name, (unsigned long long)ioc->sas_hba.sas_address));
+
+	sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys
+	    * sizeof(Mpi2SasIOUnit0PhyData_t));
+	sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_iounit_pg0) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
+	    sas_iounit_pg0, sz)) != 0)
+		goto out;
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
+		goto out;
+	for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
+		link_rate = sas_iounit_pg0->PhyData[i].NegotiatedLinkRate >> 4;
+		if (i == 0)
+			ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
+			    PhyData[0].ControllerDevHandle);
+		ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
+		attached_handle = le16_to_cpu(sas_iounit_pg0->PhyData[i].
+		    AttachedDevHandle);
+		if (attached_handle && link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
+			link_rate = MPI2_SAS_NEG_LINK_RATE_1_5;
+		mpt3sas_transport_update_links(ioc, ioc->sas_hba.sas_address,
+		    attached_handle, i, link_rate);
+	}
+ out:
+	kfree(sas_iounit_pg0);
+}
+
+/**
+ * _scsih_sas_host_add - create sas host object
+ * @ioc: per adapter object
+ *
+ * Creating host side data object, stored in ioc->sas_hba
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_host_add(struct MPT3SAS_ADAPTER *ioc)
+{
+	int i;
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
+	Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
+	Mpi2SasPhyPage0_t phy_pg0;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	Mpi2SasEnclosurePage0_t enclosure_pg0;
+	u16 ioc_status;
+	u16 sz;
+	u8 device_missing_delay;
+
+	mpt3sas_config_get_number_hba_phys(ioc, &ioc->sas_hba.num_phys);
+	if (!ioc->sas_hba.num_phys) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	/* sas_iounit page 0 */
+	sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
+	    sizeof(Mpi2SasIOUnit0PhyData_t));
+	sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_iounit_pg0) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+	if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
+	    sas_iounit_pg0, sz))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+
+	/* sas_iounit page 1 */
+	sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
+	    sizeof(Mpi2SasIOUnit1PhyData_t));
+	sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_iounit_pg1) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
+	    sas_iounit_pg1, sz))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+
+	ioc->io_missing_delay =
+	    sas_iounit_pg1->IODeviceMissingDelay;
+	device_missing_delay =
+	    sas_iounit_pg1->ReportDeviceMissingDelay;
+	if (device_missing_delay & MPI2_SASIOUNIT1_REPORT_MISSING_UNIT_16)
+		ioc->device_missing_delay = (device_missing_delay &
+		    MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK) * 16;
+	else
+		ioc->device_missing_delay = device_missing_delay &
+		    MPI2_SASIOUNIT1_REPORT_MISSING_TIMEOUT_MASK;
+
+	ioc->sas_hba.parent_dev = &ioc->shost->shost_gendev;
+	ioc->sas_hba.phy = kcalloc(ioc->sas_hba.num_phys,
+	    sizeof(struct _sas_phy), GFP_KERNEL);
+	if (!ioc->sas_hba.phy) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
+		if ((mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
+		    i))) {
+			pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+			    ioc->name, __FILE__, __LINE__, __func__);
+			goto out;
+		}
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+			    ioc->name, __FILE__, __LINE__, __func__);
+			goto out;
+		}
+
+		if (i == 0)
+			ioc->sas_hba.handle = le16_to_cpu(sas_iounit_pg0->
+			    PhyData[0].ControllerDevHandle);
+		ioc->sas_hba.phy[i].handle = ioc->sas_hba.handle;
+		ioc->sas_hba.phy[i].phy_id = i;
+		mpt3sas_transport_add_host_phy(ioc, &ioc->sas_hba.phy[i],
+		    phy_pg0, ioc->sas_hba.parent_dev);
+	}
+	if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, ioc->sas_hba.handle))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out;
+	}
+	ioc->sas_hba.enclosure_handle =
+	    le16_to_cpu(sas_device_pg0.EnclosureHandle);
+	ioc->sas_hba.sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
+	pr_info(MPT3SAS_FMT
+		"host_add: handle(0x%04x), sas_addr(0x%016llx), phys(%d)\n",
+		ioc->name, ioc->sas_hba.handle,
+	    (unsigned long long) ioc->sas_hba.sas_address,
+	    ioc->sas_hba.num_phys) ;
+
+	if (ioc->sas_hba.enclosure_handle) {
+		if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
+		    &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
+		   ioc->sas_hba.enclosure_handle)))
+			ioc->sas_hba.enclosure_logical_id =
+			    le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
+	}
+
+ out:
+	kfree(sas_iounit_pg1);
+	kfree(sas_iounit_pg0);
+}
+
+/**
+ * _scsih_expander_add -  creating expander object
+ * @ioc: per adapter object
+ * @handle: expander handle
+ *
+ * Creating expander object, stored in ioc->sas_expander_list.
+ *
+ * Return 0 for success, else error.
+ */
+static int
+_scsih_expander_add(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _sas_node *sas_expander;
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2ExpanderPage0_t expander_pg0;
+	Mpi2ExpanderPage1_t expander_pg1;
+	Mpi2SasEnclosurePage0_t enclosure_pg0;
+	u32 ioc_status;
+	u16 parent_handle;
+	u64 sas_address, sas_address_parent = 0;
+	int i;
+	unsigned long flags;
+	struct _sas_port *mpt3sas_port = NULL;
+
+	int rc = 0;
+
+	if (!handle)
+		return -1;
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery)
+		return -1;
+
+	if ((mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
+	    MPI2_SAS_EXPAND_PGAD_FORM_HNDL, handle))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	/* handle out of order topology events */
+	parent_handle = le16_to_cpu(expander_pg0.ParentDevHandle);
+	if (_scsih_get_sas_address(ioc, parent_handle, &sas_address_parent)
+	    != 0) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+	if (sas_address_parent != ioc->sas_hba.sas_address) {
+		spin_lock_irqsave(&ioc->sas_node_lock, flags);
+		sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
+		    sas_address_parent);
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		if (!sas_expander) {
+			rc = _scsih_expander_add(ioc, parent_handle);
+			if (rc != 0)
+				return rc;
+		}
+	}
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	sas_address = le64_to_cpu(expander_pg0.SASAddress);
+	sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
+	    sas_address);
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	if (sas_expander)
+		return 0;
+
+	sas_expander = kzalloc(sizeof(struct _sas_node),
+	    GFP_KERNEL);
+	if (!sas_expander) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	sas_expander->handle = handle;
+	sas_expander->num_phys = expander_pg0.NumPhys;
+	sas_expander->sas_address_parent = sas_address_parent;
+	sas_expander->sas_address = sas_address;
+
+	pr_info(MPT3SAS_FMT "expander_add: handle(0x%04x)," \
+	    " parent(0x%04x), sas_addr(0x%016llx), phys(%d)\n", ioc->name,
+	    handle, parent_handle, (unsigned long long)
+	    sas_expander->sas_address, sas_expander->num_phys);
+
+	if (!sas_expander->num_phys)
+		goto out_fail;
+	sas_expander->phy = kcalloc(sas_expander->num_phys,
+	    sizeof(struct _sas_phy), GFP_KERNEL);
+	if (!sas_expander->phy) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -1;
+		goto out_fail;
+	}
+
+	INIT_LIST_HEAD(&sas_expander->sas_port_list);
+	mpt3sas_port = mpt3sas_transport_port_add(ioc, handle,
+	    sas_address_parent);
+	if (!mpt3sas_port) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -1;
+		goto out_fail;
+	}
+	sas_expander->parent_dev = &mpt3sas_port->rphy->dev;
+
+	for (i = 0 ; i < sas_expander->num_phys ; i++) {
+		if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
+		    &expander_pg1, i, handle))) {
+			pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+			    ioc->name, __FILE__, __LINE__, __func__);
+			rc = -1;
+			goto out_fail;
+		}
+		sas_expander->phy[i].handle = handle;
+		sas_expander->phy[i].phy_id = i;
+
+		if ((mpt3sas_transport_add_expander_phy(ioc,
+		    &sas_expander->phy[i], expander_pg1,
+		    sas_expander->parent_dev))) {
+			pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+			    ioc->name, __FILE__, __LINE__, __func__);
+			rc = -1;
+			goto out_fail;
+		}
+	}
+
+	if (sas_expander->enclosure_handle) {
+		if (!(mpt3sas_config_get_enclosure_pg0(ioc, &mpi_reply,
+		    &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
+		   sas_expander->enclosure_handle)))
+			sas_expander->enclosure_logical_id =
+			    le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
+	}
+
+	_scsih_expander_node_add(ioc, sas_expander);
+	 return 0;
+
+ out_fail:
+
+	if (mpt3sas_port)
+		mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
+		    sas_address_parent);
+	kfree(sas_expander);
+	return rc;
+}
+
+/**
+ * mpt3sas_expander_remove - removing expander object
+ * @ioc: per adapter object
+ * @sas_address: expander sas_address
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_expander_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address)
+{
+	struct _sas_node *sas_expander;
+	unsigned long flags;
+
+	if (ioc->shost_recovery)
+		return;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	sas_expander = mpt3sas_scsih_expander_find_by_sas_address(ioc,
+	    sas_address);
+	if (sas_expander)
+		list_del(&sas_expander->list);
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+	if (sas_expander)
+		_scsih_expander_node_remove(ioc, sas_expander);
+}
+
+/**
+ * _scsih_done -  internal SCSI_IO callback handler.
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Callback handler when sending internal generated SCSI_IO.
+ * The callback index passed is `ioc->scsih_cb_idx`
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+static u8
+_scsih_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+
+	mpi_reply =  mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (ioc->scsih_cmds.status == MPT3_CMD_NOT_USED)
+		return 1;
+	if (ioc->scsih_cmds.smid != smid)
+		return 1;
+	ioc->scsih_cmds.status |= MPT3_CMD_COMPLETE;
+	if (mpi_reply) {
+		memcpy(ioc->scsih_cmds.reply, mpi_reply,
+		    mpi_reply->MsgLength*4);
+		ioc->scsih_cmds.status |= MPT3_CMD_REPLY_VALID;
+	}
+	ioc->scsih_cmds.status &= ~MPT3_CMD_PENDING;
+	complete(&ioc->scsih_cmds.done);
+	return 1;
+}
+
+
+
+
+#define MPT3_MAX_LUNS (255)
+
+
+/**
+ * _scsih_check_access_status - check access flags
+ * @ioc: per adapter object
+ * @sas_address: sas address
+ * @handle: sas device handle
+ * @access_flags: errors returned during discovery of the device
+ *
+ * Return 0 for success, else failure
+ */
+static u8
+_scsih_check_access_status(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
+	u16 handle, u8 access_status)
+{
+	u8 rc = 1;
+	char *desc = NULL;
+
+	switch (access_status) {
+	case MPI2_SAS_DEVICE0_ASTATUS_NO_ERRORS:
+	case MPI2_SAS_DEVICE0_ASTATUS_SATA_NEEDS_INITIALIZATION:
+		rc = 0;
+		break;
+	case MPI2_SAS_DEVICE0_ASTATUS_SATA_CAPABILITY_FAILED:
+		desc = "sata capability failed";
+		break;
+	case MPI2_SAS_DEVICE0_ASTATUS_SATA_AFFILIATION_CONFLICT:
+		desc = "sata affiliation conflict";
+		break;
+	case MPI2_SAS_DEVICE0_ASTATUS_ROUTE_NOT_ADDRESSABLE:
+		desc = "route not addressable";
+		break;
+	case MPI2_SAS_DEVICE0_ASTATUS_SMP_ERROR_NOT_ADDRESSABLE:
+		desc = "smp error not addressable";
+		break;
+	case MPI2_SAS_DEVICE0_ASTATUS_DEVICE_BLOCKED:
+		desc = "device blocked";
+		break;
+	case MPI2_SAS_DEVICE0_ASTATUS_SATA_INIT_FAILED:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_UNKNOWN:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_AFFILIATION_CONFLICT:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_DIAG:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_IDENTIFICATION:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_CHECK_POWER:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_PIO_SN:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_MDMA_SN:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_UDMA_SN:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_ZONING_VIOLATION:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_NOT_ADDRESSABLE:
+	case MPI2_SAS_DEVICE0_ASTATUS_SIF_MAX:
+		desc = "sata initialization failed";
+		break;
+	default:
+		desc = "unknown";
+		break;
+	}
+
+	if (!rc)
+		return 0;
+
+	pr_err(MPT3SAS_FMT
+		"discovery errors(%s): sas_address(0x%016llx), handle(0x%04x)\n",
+		ioc->name, desc, (unsigned long long)sas_address, handle);
+	return rc;
+}
+
+/**
+ * _scsih_check_device - checking device responsiveness
+ * @ioc: per adapter object
+ * @parent_sas_address: sas address of parent expander or sas host
+ * @handle: attached device handle
+ * @phy_numberv: phy number
+ * @link_rate: new link rate
+ *
+ * Returns nothing.
+ */
+static void
+_scsih_check_device(struct MPT3SAS_ADAPTER *ioc,
+	u64 parent_sas_address, u16 handle, u8 phy_number, u8 link_rate)
+{
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	struct _sas_device *sas_device;
+	u32 ioc_status;
+	unsigned long flags;
+	u64 sas_address;
+	struct scsi_target *starget;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	u32 device_info;
+
+
+	if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle)))
+		return;
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS)
+		return;
+
+	/* wide port handling ~ we need only handle device once for the phy that
+	 * is matched in sas device page zero
+	 */
+	if (phy_number != sas_device_pg0.PhyNum)
+		return;
+
+	/* check if this is end device */
+	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
+	if (!(_scsih_is_end_device(device_info)))
+		return;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	    sas_address);
+
+	if (!sas_device) {
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		return;
+	}
+
+	if (unlikely(sas_device->handle != handle)) {
+		starget = sas_device->starget;
+		sas_target_priv_data = starget->hostdata;
+		starget_printk(KERN_INFO, starget,
+			"handle changed from(0x%04x) to (0x%04x)!!!\n",
+			sas_device->handle, handle);
+		sas_target_priv_data->handle = handle;
+		sas_device->handle = handle;
+	}
+
+	/* check if device is present */
+	if (!(le16_to_cpu(sas_device_pg0.Flags) &
+	    MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
+		pr_err(MPT3SAS_FMT
+			"device is not present handle(0x%04x), flags!!!\n",
+			ioc->name, handle);
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		return;
+	}
+
+	/* check if there were any issues with discovery */
+	if (_scsih_check_access_status(ioc, sas_address, handle,
+	    sas_device_pg0.AccessStatus)) {
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		return;
+	}
+
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	_scsih_ublock_io_device(ioc, sas_address);
+
+}
+
+/**
+ * _scsih_add_device -  creating sas device object
+ * @ioc: per adapter object
+ * @handle: sas device handle
+ * @phy_num: phy number end device attached to
+ * @is_pd: is this hidden raid component
+ *
+ * Creating end device object, stored in ioc->sas_device_list.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_scsih_add_device(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phy_num,
+	u8 is_pd)
+{
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	Mpi2SasEnclosurePage0_t enclosure_pg0;
+	struct _sas_device *sas_device;
+	u32 ioc_status;
+	u64 sas_address;
+	u32 device_info;
+	unsigned long flags;
+
+	if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+
+	/* check if this is end device */
+	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
+	if (!(_scsih_is_end_device(device_info)))
+		return -1;
+	sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
+
+	/* check if device is present */
+	if (!(le16_to_cpu(sas_device_pg0.Flags) &
+	    MPI2_SAS_DEVICE0_FLAGS_DEVICE_PRESENT)) {
+		pr_err(MPT3SAS_FMT "device is not present handle(0x04%x)!!!\n",
+			ioc->name, handle);
+		return -1;
+	}
+
+	/* check if there were any issues with discovery */
+	if (_scsih_check_access_status(ioc, sas_address, handle,
+	    sas_device_pg0.AccessStatus))
+		return -1;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	    sas_address);
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+	if (sas_device)
+		return -1;
+
+	sas_device = kzalloc(sizeof(struct _sas_device),
+	    GFP_KERNEL);
+	if (!sas_device) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return 0;
+	}
+
+	sas_device->handle = handle;
+	if (_scsih_get_sas_address(ioc,
+	    le16_to_cpu(sas_device_pg0.ParentDevHandle),
+	    &sas_device->sas_address_parent) != 0)
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+	sas_device->enclosure_handle =
+	    le16_to_cpu(sas_device_pg0.EnclosureHandle);
+	sas_device->slot =
+	    le16_to_cpu(sas_device_pg0.Slot);
+	sas_device->device_info = device_info;
+	sas_device->sas_address = sas_address;
+	sas_device->phy = sas_device_pg0.PhyNum;
+	sas_device->fast_path = (le16_to_cpu(sas_device_pg0.Flags) &
+	    MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE) ? 1 : 0;
+
+	/* get enclosure_logical_id */
+	if (sas_device->enclosure_handle && !(mpt3sas_config_get_enclosure_pg0(
+	   ioc, &mpi_reply, &enclosure_pg0, MPI2_SAS_ENCLOS_PGAD_FORM_HANDLE,
+	   sas_device->enclosure_handle)))
+		sas_device->enclosure_logical_id =
+		    le64_to_cpu(enclosure_pg0.EnclosureLogicalID);
+
+	/* get device name */
+	sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName);
+
+	if (ioc->wait_for_discovery_to_complete)
+		_scsih_sas_device_init_add(ioc, sas_device);
+	else
+		_scsih_sas_device_add(ioc, sas_device);
+
+	return 0;
+}
+
+/**
+ * _scsih_remove_device -  removing sas device object
+ * @ioc: per adapter object
+ * @sas_device_delete: the sas_device object
+ *
+ * Return nothing.
+ */
+static void
+_scsih_remove_device(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_device *sas_device)
+{
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: enter: handle(0x%04x), sas_addr(0x%016llx)\n",
+		ioc->name, __func__,
+	    sas_device->handle, (unsigned long long)
+	    sas_device->sas_address));
+
+	if (sas_device->starget && sas_device->starget->hostdata) {
+		sas_target_priv_data = sas_device->starget->hostdata;
+		sas_target_priv_data->deleted = 1;
+		_scsih_ublock_io_device(ioc, sas_device->sas_address);
+		sas_target_priv_data->handle =
+		     MPT3SAS_INVALID_DEVICE_HANDLE;
+	}
+	mpt3sas_transport_port_remove(ioc,
+		    sas_device->sas_address,
+		    sas_device->sas_address_parent);
+
+	pr_info(MPT3SAS_FMT
+		"removing handle(0x%04x), sas_addr(0x%016llx)\n",
+		ioc->name, sas_device->handle,
+	    (unsigned long long) sas_device->sas_address);
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: exit: handle(0x%04x), sas_addr(0x%016llx)\n",
+		ioc->name, __func__,
+	    sas_device->handle, (unsigned long long)
+	    sas_device->sas_address));
+
+	kfree(sas_device);
+}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _scsih_sas_topology_change_event_debug - debug for topology event
+ * @ioc: per adapter object
+ * @event_data: event data payload
+ * Context: user.
+ */
+static void
+_scsih_sas_topology_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataSasTopologyChangeList_t *event_data)
+{
+	int i;
+	u16 handle;
+	u16 reason_code;
+	u8 phy_number;
+	char *status_str = NULL;
+	u8 link_rate, prev_link_rate;
+
+	switch (event_data->ExpStatus) {
+	case MPI2_EVENT_SAS_TOPO_ES_ADDED:
+		status_str = "add";
+		break;
+	case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
+		status_str = "remove";
+		break;
+	case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
+	case 0:
+		status_str =  "responding";
+		break;
+	case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
+		status_str = "remove delay";
+		break;
+	default:
+		status_str = "unknown status";
+		break;
+	}
+	pr_info(MPT3SAS_FMT "sas topology change: (%s)\n",
+	    ioc->name, status_str);
+	pr_info("\thandle(0x%04x), enclosure_handle(0x%04x) " \
+	    "start_phy(%02d), count(%d)\n",
+	    le16_to_cpu(event_data->ExpanderDevHandle),
+	    le16_to_cpu(event_data->EnclosureHandle),
+	    event_data->StartPhyNum, event_data->NumEntries);
+	for (i = 0; i < event_data->NumEntries; i++) {
+		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
+		if (!handle)
+			continue;
+		phy_number = event_data->StartPhyNum + i;
+		reason_code = event_data->PHY[i].PhyStatus &
+		    MPI2_EVENT_SAS_TOPO_RC_MASK;
+		switch (reason_code) {
+		case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
+			status_str = "target add";
+			break;
+		case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
+			status_str = "target remove";
+			break;
+		case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
+			status_str = "delay target remove";
+			break;
+		case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
+			status_str = "link rate change";
+			break;
+		case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
+			status_str = "target responding";
+			break;
+		default:
+			status_str = "unknown";
+			break;
+		}
+		link_rate = event_data->PHY[i].LinkRate >> 4;
+		prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
+		pr_info("\tphy(%02d), attached_handle(0x%04x): %s:" \
+		    " link rate: new(0x%02x), old(0x%02x)\n", phy_number,
+		    handle, status_str, link_rate, prev_link_rate);
+
+	}
+}
+#endif
+
+/**
+ * _scsih_sas_topology_change_event - handle topology changes
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ */
+static int
+_scsih_sas_topology_change_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	int i;
+	u16 parent_handle, handle;
+	u16 reason_code;
+	u8 phy_number, max_phys;
+	struct _sas_node *sas_expander;
+	u64 sas_address;
+	unsigned long flags;
+	u8 link_rate, prev_link_rate;
+	Mpi2EventDataSasTopologyChangeList_t *event_data = fw_event->event_data;
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
+		_scsih_sas_topology_change_event_debug(ioc, event_data);
+#endif
+
+	if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery)
+		return 0;
+
+	if (!ioc->sas_hba.num_phys)
+		_scsih_sas_host_add(ioc);
+	else
+		_scsih_sas_host_refresh(ioc);
+
+	if (fw_event->ignore) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"ignoring expander event\n", ioc->name));
+		return 0;
+	}
+
+	parent_handle = le16_to_cpu(event_data->ExpanderDevHandle);
+
+	/* handle expander add */
+	if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_ADDED)
+		if (_scsih_expander_add(ioc, parent_handle) != 0)
+			return 0;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	sas_expander = mpt3sas_scsih_expander_find_by_handle(ioc,
+	    parent_handle);
+	if (sas_expander) {
+		sas_address = sas_expander->sas_address;
+		max_phys = sas_expander->num_phys;
+	} else if (parent_handle < ioc->sas_hba.num_phys) {
+		sas_address = ioc->sas_hba.sas_address;
+		max_phys = ioc->sas_hba.num_phys;
+	} else {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return 0;
+	}
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	/* handle siblings events */
+	for (i = 0; i < event_data->NumEntries; i++) {
+		if (fw_event->ignore) {
+			dewtprintk(ioc, pr_info(MPT3SAS_FMT
+				"ignoring expander event\n", ioc->name));
+			return 0;
+		}
+		if (ioc->remove_host || ioc->pci_error_recovery)
+			return 0;
+		phy_number = event_data->StartPhyNum + i;
+		if (phy_number >= max_phys)
+			continue;
+		reason_code = event_data->PHY[i].PhyStatus &
+		    MPI2_EVENT_SAS_TOPO_RC_MASK;
+		if ((event_data->PHY[i].PhyStatus &
+		    MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) && (reason_code !=
+		    MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING))
+				continue;
+		handle = le16_to_cpu(event_data->PHY[i].AttachedDevHandle);
+		if (!handle)
+			continue;
+		link_rate = event_data->PHY[i].LinkRate >> 4;
+		prev_link_rate = event_data->PHY[i].LinkRate & 0xF;
+		switch (reason_code) {
+		case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
+
+			if (ioc->shost_recovery)
+				break;
+
+			if (link_rate == prev_link_rate)
+				break;
+
+			mpt3sas_transport_update_links(ioc, sas_address,
+			    handle, phy_number, link_rate);
+
+			if (link_rate < MPI2_SAS_NEG_LINK_RATE_1_5)
+				break;
+
+			_scsih_check_device(ioc, sas_address, handle,
+			    phy_number, link_rate);
+
+
+		case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
+
+			if (ioc->shost_recovery)
+				break;
+
+			mpt3sas_transport_update_links(ioc, sas_address,
+			    handle, phy_number, link_rate);
+
+			_scsih_add_device(ioc, handle, phy_number, 0);
+
+			break;
+		case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
+
+			_scsih_device_remove_by_handle(ioc, handle);
+			break;
+		}
+	}
+
+	/* handle expander removal */
+	if (event_data->ExpStatus == MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING &&
+	    sas_expander)
+		mpt3sas_expander_remove(ioc, sas_address);
+
+	return 0;
+}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _scsih_sas_device_status_change_event_debug - debug for device event
+ * @event_data: event data payload
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_device_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataSasDeviceStatusChange_t *event_data)
+{
+	char *reason_str = NULL;
+
+	switch (event_data->ReasonCode) {
+	case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
+		reason_str = "smart data";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
+		reason_str = "unsupported device discovered";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
+		reason_str = "internal device reset";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
+		reason_str = "internal task abort";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
+		reason_str = "internal task abort set";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
+		reason_str = "internal clear task set";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
+		reason_str = "internal query task";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_SATA_INIT_FAILURE:
+		reason_str = "sata init failure";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
+		reason_str = "internal device reset complete";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
+		reason_str = "internal task abort complete";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
+		reason_str = "internal async notification";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_EXPANDER_REDUCED_FUNCTIONALITY:
+		reason_str = "expander reduced functionality";
+		break;
+	case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_EXPANDER_REDUCED_FUNCTIONALITY:
+		reason_str = "expander reduced functionality complete";
+		break;
+	default:
+		reason_str = "unknown reason";
+		break;
+	}
+	pr_info(MPT3SAS_FMT "device status change: (%s)\n"
+	    "\thandle(0x%04x), sas address(0x%016llx), tag(%d)",
+	    ioc->name, reason_str, le16_to_cpu(event_data->DevHandle),
+	    (unsigned long long)le64_to_cpu(event_data->SASAddress),
+	    le16_to_cpu(event_data->TaskTag));
+	if (event_data->ReasonCode == MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA)
+		pr_info(MPT3SAS_FMT ", ASC(0x%x), ASCQ(0x%x)\n", ioc->name,
+		    event_data->ASC, event_data->ASCQ);
+	pr_info("\n");
+}
+#endif
+
+/**
+ * _scsih_sas_device_status_change_event - handle device status change
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_device_status_change_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	struct MPT3SAS_TARGET *target_priv_data;
+	struct _sas_device *sas_device;
+	u64 sas_address;
+	unsigned long flags;
+	Mpi2EventDataSasDeviceStatusChange_t *event_data =
+	    fw_event->event_data;
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
+		_scsih_sas_device_status_change_event_debug(ioc,
+		     event_data);
+#endif
+
+	/* In MPI Revision K (0xC), the internal device reset complete was
+	 * implemented, so avoid setting tm_busy flag for older firmware.
+	 */
+	if ((ioc->facts.HeaderVersion >> 8) < 0xC)
+		return;
+
+	if (event_data->ReasonCode !=
+	    MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
+	   event_data->ReasonCode !=
+	    MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET)
+		return;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_address = le64_to_cpu(event_data->SASAddress);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	    sas_address);
+
+	if (!sas_device || !sas_device->starget) {
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		return;
+	}
+
+	target_priv_data = sas_device->starget->hostdata;
+	if (!target_priv_data) {
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		return;
+	}
+
+	if (event_data->ReasonCode ==
+	    MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET)
+		target_priv_data->tm_busy = 1;
+	else
+		target_priv_data->tm_busy = 0;
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _scsih_sas_enclosure_dev_status_change_event_debug - debug for enclosure
+ * event
+ * @ioc: per adapter object
+ * @event_data: event data payload
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_enclosure_dev_status_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataSasEnclDevStatusChange_t *event_data)
+{
+	char *reason_str = NULL;
+
+	switch (event_data->ReasonCode) {
+	case MPI2_EVENT_SAS_ENCL_RC_ADDED:
+		reason_str = "enclosure add";
+		break;
+	case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
+		reason_str = "enclosure remove";
+		break;
+	default:
+		reason_str = "unknown reason";
+		break;
+	}
+
+	pr_info(MPT3SAS_FMT "enclosure status change: (%s)\n"
+	    "\thandle(0x%04x), enclosure logical id(0x%016llx)"
+	    " number slots(%d)\n", ioc->name, reason_str,
+	    le16_to_cpu(event_data->EnclosureHandle),
+	    (unsigned long long)le64_to_cpu(event_data->EnclosureLogicalID),
+	    le16_to_cpu(event_data->StartSlot));
+}
+#endif
+
+/**
+ * _scsih_sas_enclosure_dev_status_change_event - handle enclosure events
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_enclosure_dev_status_change_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
+		_scsih_sas_enclosure_dev_status_change_event_debug(ioc,
+		     fw_event->event_data);
+#endif
+}
+
+/**
+ * _scsih_sas_broadcast_primitive_event - handle broadcast events
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	struct scsi_cmnd *scmd;
+	struct scsi_device *sdev;
+	u16 smid, handle;
+	u32 lun;
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	u32 termination_count;
+	u32 query_count;
+	Mpi2SCSITaskManagementReply_t *mpi_reply;
+	Mpi2EventDataSasBroadcastPrimitive_t *event_data = fw_event->event_data;
+	u16 ioc_status;
+	unsigned long flags;
+	int r;
+	u8 max_retries = 0;
+	u8 task_abort_retries;
+
+	mutex_lock(&ioc->tm_cmds.mutex);
+	pr_info(MPT3SAS_FMT
+		"%s: enter: phy number(%d), width(%d)\n",
+		ioc->name, __func__, event_data->PhyNum,
+	     event_data->PortWidth);
+
+	_scsih_block_io_all_device(ioc);
+
+	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	mpi_reply = ioc->tm_cmds.reply;
+ broadcast_aen_retry:
+
+	/* sanity checks for retrying this loop */
+	if (max_retries++ == 5) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: giving up\n",
+		    ioc->name, __func__));
+		goto out;
+	} else if (max_retries > 1)
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT "%s: %d retry\n",
+		    ioc->name, __func__, max_retries - 1));
+
+	termination_count = 0;
+	query_count = 0;
+	for (smid = 1; smid <= ioc->scsiio_depth; smid++) {
+		if (ioc->shost_recovery)
+			goto out;
+		scmd = _scsih_scsi_lookup_get(ioc, smid);
+		if (!scmd)
+			continue;
+		sdev = scmd->device;
+		sas_device_priv_data = sdev->hostdata;
+		if (!sas_device_priv_data || !sas_device_priv_data->sas_target)
+			continue;
+		 /* skip hidden raid components */
+		if (sas_device_priv_data->sas_target->flags &
+		    MPT_TARGET_FLAGS_RAID_COMPONENT)
+			continue;
+		 /* skip volumes */
+		if (sas_device_priv_data->sas_target->flags &
+		    MPT_TARGET_FLAGS_VOLUME)
+			continue;
+
+		handle = sas_device_priv_data->sas_target->handle;
+		lun = sas_device_priv_data->lun;
+		query_count++;
+
+		if (ioc->shost_recovery)
+			goto out;
+
+		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+		r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun,
+		    MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30, 0,
+		    TM_MUTEX_OFF);
+		if (r == FAILED) {
+			sdev_printk(KERN_WARNING, sdev,
+			    "mpt3sas_scsih_issue_tm: FAILED when sending "
+			    "QUERY_TASK: scmd(%p)\n", scmd);
+			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+			goto broadcast_aen_retry;
+		}
+		ioc_status = le16_to_cpu(mpi_reply->IOCStatus)
+		    & MPI2_IOCSTATUS_MASK;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			sdev_printk(KERN_WARNING, sdev,
+				"query task: FAILED with IOCSTATUS(0x%04x), scmd(%p)\n",
+				ioc_status, scmd);
+			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+			goto broadcast_aen_retry;
+		}
+
+		/* see if IO is still owned by IOC and target */
+		if (mpi_reply->ResponseCode ==
+		     MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED ||
+		     mpi_reply->ResponseCode ==
+		     MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC) {
+			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+			continue;
+		}
+		task_abort_retries = 0;
+ tm_retry:
+		if (task_abort_retries++ == 60) {
+			dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			    "%s: ABORT_TASK: giving up\n", ioc->name,
+			    __func__));
+			spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+			goto broadcast_aen_retry;
+		}
+
+		if (ioc->shost_recovery)
+			goto out_no_lock;
+
+		r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id,
+		    sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, smid, 30,
+		    scmd->serial_number, TM_MUTEX_OFF);
+		if (r == FAILED) {
+			sdev_printk(KERN_WARNING, sdev,
+			    "mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : "
+			    "scmd(%p)\n", scmd);
+			goto tm_retry;
+		}
+
+		if (task_abort_retries > 1)
+			sdev_printk(KERN_WARNING, sdev,
+			    "mpt3sas_scsih_issue_tm: ABORT_TASK: RETRIES (%d):"
+			    " scmd(%p)\n",
+			    task_abort_retries - 1, scmd);
+
+		termination_count += le32_to_cpu(mpi_reply->TerminationCount);
+		spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
+	}
+
+	if (ioc->broadcast_aen_pending) {
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: loop back due to pending AEN\n",
+			ioc->name, __func__));
+		 ioc->broadcast_aen_pending = 0;
+		 goto broadcast_aen_retry;
+	}
+
+ out:
+	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
+ out_no_lock:
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+	    "%s - exit, query_count = %d termination_count = %d\n",
+	    ioc->name, __func__, query_count, termination_count));
+
+	ioc->broadcast_aen_busy = 0;
+	if (!ioc->shost_recovery)
+		_scsih_ublock_io_all_device(ioc);
+	mutex_unlock(&ioc->tm_cmds.mutex);
+}
+
+/**
+ * _scsih_sas_discovery_event - handle discovery events
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_discovery_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	Mpi2EventDataSasDiscovery_t *event_data = fw_event->event_data;
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK) {
+		pr_info(MPT3SAS_FMT "discovery event: (%s)", ioc->name,
+		    (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED) ?
+		    "start" : "stop");
+	if (event_data->DiscoveryStatus)
+		pr_info("discovery_status(0x%08x)",
+		    le32_to_cpu(event_data->DiscoveryStatus));
+	pr_info("\n");
+	}
+#endif
+
+	if (event_data->ReasonCode == MPI2_EVENT_SAS_DISC_RC_STARTED &&
+	    !ioc->sas_hba.num_phys) {
+		if (disable_discovery > 0 && ioc->shost_recovery) {
+			/* Wait for the reset to complete */
+			while (ioc->shost_recovery)
+				ssleep(1);
+		}
+		_scsih_sas_host_add(ioc);
+	}
+}
+
+/**
+ * _scsih_ir_fastpath - turn on fastpath for IR physdisk
+ * @ioc: per adapter object
+ * @handle: device handle for physical disk
+ * @phys_disk_num: physical disk number
+ *
+ * Return 0 for success, else failure.
+ */
+static int
+_scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
+{
+	Mpi2RaidActionRequest_t *mpi_request;
+	Mpi2RaidActionReply_t *mpi_reply;
+	u16 smid;
+	u8 issue_reset = 0;
+	int rc = 0;
+	u16 ioc_status;
+	u32 log_info;
+
+
+	mutex_lock(&ioc->scsih_cmds.mutex);
+
+	if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+	ioc->scsih_cmds.status = MPT3_CMD_PENDING;
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->scsih_cmds.smid = smid;
+	memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
+
+	mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
+	mpi_request->Action = MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
+	mpi_request->PhysDiskNum = phys_disk_num;
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT "IR RAID_ACTION: turning fast "\
+	    "path on for handle(0x%04x), phys_disk_num (0x%02x)\n", ioc->name,
+	    handle, phys_disk_num));
+
+	init_completion(&ioc->scsih_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
+
+	if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		if (!(ioc->scsih_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		rc = -EFAULT;
+		goto out;
+	}
+
+	if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
+
+		mpi_reply = ioc->scsih_cmds.reply;
+		ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
+		if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
+			log_info =  le32_to_cpu(mpi_reply->IOCLogInfo);
+		else
+			log_info = 0;
+		ioc_status &= MPI2_IOCSTATUS_MASK;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			    "IR RAID_ACTION: failed: ioc_status(0x%04x), "
+			    "loginfo(0x%08x)!!!\n", ioc->name, ioc_status,
+			    log_info));
+			rc = -EFAULT;
+		} else
+			dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			    "IR RAID_ACTION: completed successfully\n",
+			    ioc->name));
+	}
+
+ out:
+	ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_unlock(&ioc->scsih_cmds.mutex);
+
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+	return rc;
+}
+
+/**
+ * _scsih_reprobe_lun - reprobing lun
+ * @sdev: scsi device struct
+ * @no_uld_attach: sdev->no_uld_attach flag setting
+ *
+ **/
+static void
+_scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach)
+{
+	int rc;
+	sdev->no_uld_attach = no_uld_attach ? 1 : 0;
+	sdev_printk(KERN_INFO, sdev, "%s raid component\n",
+	    sdev->no_uld_attach ? "hidding" : "exposing");
+	rc = scsi_device_reprobe(sdev);
+}
+
+/**
+ * _scsih_sas_volume_add - add new volume
+ * @ioc: per adapter object
+ * @element: IR config element data
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_volume_add(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventIrConfigElement_t *element)
+{
+	struct _raid_device *raid_device;
+	unsigned long flags;
+	u64 wwid;
+	u16 handle = le16_to_cpu(element->VolDevHandle);
+	int rc;
+
+	mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
+	if (!wwid) {
+		pr_err(MPT3SAS_FMT
+		    "failure at %s:%d/%s()!\n", ioc->name,
+		    __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	raid_device = _scsih_raid_device_find_by_wwid(ioc, wwid);
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+
+	if (raid_device)
+		return;
+
+	raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
+	if (!raid_device) {
+		pr_err(MPT3SAS_FMT
+		    "failure at %s:%d/%s()!\n", ioc->name,
+		    __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	raid_device->id = ioc->sas_id++;
+	raid_device->channel = RAID_CHANNEL;
+	raid_device->handle = handle;
+	raid_device->wwid = wwid;
+	_scsih_raid_device_add(ioc, raid_device);
+	if (!ioc->wait_for_discovery_to_complete) {
+		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
+		    raid_device->id, 0);
+		if (rc)
+			_scsih_raid_device_remove(ioc, raid_device);
+	} else {
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		_scsih_determine_boot_device(ioc, raid_device, 1);
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+	}
+}
+
+/**
+ * _scsih_sas_volume_delete - delete volume
+ * @ioc: per adapter object
+ * @handle: volume device handle
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_volume_delete(struct MPT3SAS_ADAPTER *ioc, u16 handle)
+{
+	struct _raid_device *raid_device;
+	unsigned long flags;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct scsi_target *starget = NULL;
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
+	if (raid_device) {
+		if (raid_device->starget) {
+			starget = raid_device->starget;
+			sas_target_priv_data = starget->hostdata;
+			sas_target_priv_data->deleted = 1;
+		}
+		pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
+			ioc->name,  raid_device->handle,
+		    (unsigned long long) raid_device->wwid);
+		list_del(&raid_device->list);
+		kfree(raid_device);
+	}
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+	if (starget)
+		scsi_remove_target(&starget->dev);
+}
+
+/**
+ * _scsih_sas_pd_expose - expose pd component to /dev/sdX
+ * @ioc: per adapter object
+ * @element: IR config element data
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_pd_expose(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventIrConfigElement_t *element)
+{
+	struct _sas_device *sas_device;
+	struct scsi_target *starget = NULL;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	unsigned long flags;
+	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+	if (sas_device) {
+		sas_device->volume_handle = 0;
+		sas_device->volume_wwid = 0;
+		clear_bit(handle, ioc->pd_handles);
+		if (sas_device->starget && sas_device->starget->hostdata) {
+			starget = sas_device->starget;
+			sas_target_priv_data = starget->hostdata;
+			sas_target_priv_data->flags &=
+			    ~MPT_TARGET_FLAGS_RAID_COMPONENT;
+		}
+	}
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	if (!sas_device)
+		return;
+
+	/* exposing raid component */
+	if (starget)
+		starget_for_each_device(starget, NULL, _scsih_reprobe_lun);
+}
+
+/**
+ * _scsih_sas_pd_hide - hide pd component from /dev/sdX
+ * @ioc: per adapter object
+ * @element: IR config element data
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_pd_hide(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventIrConfigElement_t *element)
+{
+	struct _sas_device *sas_device;
+	struct scsi_target *starget = NULL;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	unsigned long flags;
+	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
+	u16 volume_handle = 0;
+	u64 volume_wwid = 0;
+
+	mpt3sas_config_get_volume_handle(ioc, handle, &volume_handle);
+	if (volume_handle)
+		mpt3sas_config_get_volume_wwid(ioc, volume_handle,
+		    &volume_wwid);
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+	if (sas_device) {
+		set_bit(handle, ioc->pd_handles);
+		if (sas_device->starget && sas_device->starget->hostdata) {
+			starget = sas_device->starget;
+			sas_target_priv_data = starget->hostdata;
+			sas_target_priv_data->flags |=
+			    MPT_TARGET_FLAGS_RAID_COMPONENT;
+			sas_device->volume_handle = volume_handle;
+			sas_device->volume_wwid = volume_wwid;
+		}
+	}
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	if (!sas_device)
+		return;
+
+	/* hiding raid component */
+	_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
+	if (starget)
+		starget_for_each_device(starget, (void *)1, _scsih_reprobe_lun);
+}
+
+/**
+ * _scsih_sas_pd_delete - delete pd component
+ * @ioc: per adapter object
+ * @element: IR config element data
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_pd_delete(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventIrConfigElement_t *element)
+{
+	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
+
+	_scsih_device_remove_by_handle(ioc, handle);
+}
+
+/**
+ * _scsih_sas_pd_add - remove pd component
+ * @ioc: per adapter object
+ * @element: IR config element data
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_pd_add(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventIrConfigElement_t *element)
+{
+	struct _sas_device *sas_device;
+	unsigned long flags;
+	u16 handle = le16_to_cpu(element->PhysDiskDevHandle);
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	u32 ioc_status;
+	u64 sas_address;
+	u16 parent_handle;
+
+	set_bit(handle, ioc->pd_handles);
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	if (sas_device) {
+		_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
+		return;
+	}
+
+	if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return;
+	}
+
+	parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
+	if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
+		mpt3sas_transport_update_links(ioc, sas_address, handle,
+		    sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
+
+	_scsih_ir_fastpath(ioc, handle, element->PhysDiskNum);
+	_scsih_add_device(ioc, handle, 0, 1);
+}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _scsih_sas_ir_config_change_event_debug - debug for IR Config Change events
+ * @ioc: per adapter object
+ * @event_data: event data payload
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_ir_config_change_event_debug(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataIrConfigChangeList_t *event_data)
+{
+	Mpi2EventIrConfigElement_t *element;
+	u8 element_type;
+	int i;
+	char *reason_str = NULL, *element_str = NULL;
+
+	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
+
+	pr_info(MPT3SAS_FMT "raid config change: (%s), elements(%d)\n",
+	    ioc->name, (le32_to_cpu(event_data->Flags) &
+	    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ?
+	    "foreign" : "native", event_data->NumElements);
+	for (i = 0; i < event_data->NumElements; i++, element++) {
+		switch (element->ReasonCode) {
+		case MPI2_EVENT_IR_CHANGE_RC_ADDED:
+			reason_str = "add";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
+			reason_str = "remove";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_NO_CHANGE:
+			reason_str = "no change";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_HIDE:
+			reason_str = "hide";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
+			reason_str = "unhide";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
+			reason_str = "volume_created";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
+			reason_str = "volume_deleted";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
+			reason_str = "pd_created";
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
+			reason_str = "pd_deleted";
+			break;
+		default:
+			reason_str = "unknown reason";
+			break;
+		}
+		element_type = le16_to_cpu(element->ElementFlags) &
+		    MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
+		switch (element_type) {
+		case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLUME_ELEMENT:
+			element_str = "volume";
+			break;
+		case MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT:
+			element_str = "phys disk";
+			break;
+		case MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT:
+			element_str = "hot spare";
+			break;
+		default:
+			element_str = "unknown element";
+			break;
+		}
+		pr_info("\t(%s:%s), vol handle(0x%04x), " \
+		    "pd handle(0x%04x), pd num(0x%02x)\n", element_str,
+		    reason_str, le16_to_cpu(element->VolDevHandle),
+		    le16_to_cpu(element->PhysDiskDevHandle),
+		    element->PhysDiskNum);
+	}
+}
+#endif
+
+/**
+ * _scsih_sas_ir_config_change_event - handle ir configuration change events
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_ir_config_change_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	Mpi2EventIrConfigElement_t *element;
+	int i;
+	u8 foreign_config;
+	Mpi2EventDataIrConfigChangeList_t *event_data = fw_event->event_data;
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
+		_scsih_sas_ir_config_change_event_debug(ioc, event_data);
+
+#endif
+
+	foreign_config = (le32_to_cpu(event_data->Flags) &
+	    MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
+
+	element = (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
+	if (ioc->shost_recovery) {
+
+		for (i = 0; i < event_data->NumElements; i++, element++) {
+			if (element->ReasonCode == MPI2_EVENT_IR_CHANGE_RC_HIDE)
+				_scsih_ir_fastpath(ioc,
+					le16_to_cpu(element->PhysDiskDevHandle),
+					element->PhysDiskNum);
+		}
+		return;
+	}
+	for (i = 0; i < event_data->NumElements; i++, element++) {
+
+		switch (element->ReasonCode) {
+		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
+		case MPI2_EVENT_IR_CHANGE_RC_ADDED:
+			if (!foreign_config)
+				_scsih_sas_volume_add(ioc, element);
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
+		case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
+			if (!foreign_config)
+				_scsih_sas_volume_delete(ioc,
+				    le16_to_cpu(element->VolDevHandle));
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
+			_scsih_sas_pd_hide(ioc, element);
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
+			_scsih_sas_pd_expose(ioc, element);
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_HIDE:
+			_scsih_sas_pd_add(ioc, element);
+			break;
+		case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
+			_scsih_sas_pd_delete(ioc, element);
+			break;
+		}
+	}
+}
+
+/**
+ * _scsih_sas_ir_volume_event - IR volume event
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_ir_volume_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	u64 wwid;
+	unsigned long flags;
+	struct _raid_device *raid_device;
+	u16 handle;
+	u32 state;
+	int rc;
+	Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
+
+	if (ioc->shost_recovery)
+		return;
+
+	if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED)
+		return;
+
+	handle = le16_to_cpu(event_data->VolDevHandle);
+	state = le32_to_cpu(event_data->NewValue);
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
+		ioc->name, __func__,  handle,
+	    le32_to_cpu(event_data->PreviousValue), state));
+	switch (state) {
+	case MPI2_RAID_VOL_STATE_MISSING:
+	case MPI2_RAID_VOL_STATE_FAILED:
+		_scsih_sas_volume_delete(ioc, handle);
+		break;
+
+	case MPI2_RAID_VOL_STATE_ONLINE:
+	case MPI2_RAID_VOL_STATE_DEGRADED:
+	case MPI2_RAID_VOL_STATE_OPTIMAL:
+
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+
+		if (raid_device)
+			break;
+
+		mpt3sas_config_get_volume_wwid(ioc, handle, &wwid);
+		if (!wwid) {
+			pr_err(MPT3SAS_FMT
+			    "failure at %s:%d/%s()!\n", ioc->name,
+			    __FILE__, __LINE__, __func__);
+			break;
+		}
+
+		raid_device = kzalloc(sizeof(struct _raid_device), GFP_KERNEL);
+		if (!raid_device) {
+			pr_err(MPT3SAS_FMT
+			    "failure at %s:%d/%s()!\n", ioc->name,
+			    __FILE__, __LINE__, __func__);
+			break;
+		}
+
+		raid_device->id = ioc->sas_id++;
+		raid_device->channel = RAID_CHANNEL;
+		raid_device->handle = handle;
+		raid_device->wwid = wwid;
+		_scsih_raid_device_add(ioc, raid_device);
+		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
+		    raid_device->id, 0);
+		if (rc)
+			_scsih_raid_device_remove(ioc, raid_device);
+		break;
+
+	case MPI2_RAID_VOL_STATE_INITIALIZING:
+	default:
+		break;
+	}
+}
+
+/**
+ * _scsih_sas_ir_physical_disk_event - PD event
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_ir_physical_disk_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	u16 handle, parent_handle;
+	u32 state;
+	struct _sas_device *sas_device;
+	unsigned long flags;
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	u32 ioc_status;
+	Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data;
+	u64 sas_address;
+
+	if (ioc->shost_recovery)
+		return;
+
+	if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED)
+		return;
+
+	handle = le16_to_cpu(event_data->PhysDiskDevHandle);
+	state = le32_to_cpu(event_data->NewValue);
+
+	dewtprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: handle(0x%04x), old(0x%08x), new(0x%08x)\n",
+		ioc->name, __func__,  handle,
+		    le32_to_cpu(event_data->PreviousValue), state));
+	switch (state) {
+	case MPI2_RAID_PD_STATE_ONLINE:
+	case MPI2_RAID_PD_STATE_DEGRADED:
+	case MPI2_RAID_PD_STATE_REBUILDING:
+	case MPI2_RAID_PD_STATE_OPTIMAL:
+	case MPI2_RAID_PD_STATE_HOT_SPARE:
+
+		set_bit(handle, ioc->pd_handles);
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+		if (sas_device)
+			return;
+
+		if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
+		    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
+		    handle))) {
+			pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+			    ioc->name, __FILE__, __LINE__, __func__);
+			return;
+		}
+
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+			    ioc->name, __FILE__, __LINE__, __func__);
+			return;
+		}
+
+		parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
+		if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address))
+			mpt3sas_transport_update_links(ioc, sas_address, handle,
+			    sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
+
+		_scsih_add_device(ioc, handle, 0, 1);
+
+		break;
+
+	case MPI2_RAID_PD_STATE_OFFLINE:
+	case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
+	case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
+	default:
+		break;
+	}
+}
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+/**
+ * _scsih_sas_ir_operation_status_event_debug - debug for IR op event
+ * @ioc: per adapter object
+ * @event_data: event data payload
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_ir_operation_status_event_debug(struct MPT3SAS_ADAPTER *ioc,
+	Mpi2EventDataIrOperationStatus_t *event_data)
+{
+	char *reason_str = NULL;
+
+	switch (event_data->RAIDOperation) {
+	case MPI2_EVENT_IR_RAIDOP_RESYNC:
+		reason_str = "resync";
+		break;
+	case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
+		reason_str = "online capacity expansion";
+		break;
+	case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
+		reason_str = "consistency check";
+		break;
+	case MPI2_EVENT_IR_RAIDOP_BACKGROUND_INIT:
+		reason_str = "background init";
+		break;
+	case MPI2_EVENT_IR_RAIDOP_MAKE_DATA_CONSISTENT:
+		reason_str = "make data consistent";
+		break;
+	}
+
+	if (!reason_str)
+		return;
+
+	pr_info(MPT3SAS_FMT "raid operational status: (%s)" \
+	    "\thandle(0x%04x), percent complete(%d)\n",
+	    ioc->name, reason_str,
+	    le16_to_cpu(event_data->VolDevHandle),
+	    event_data->PercentComplete);
+}
+#endif
+
+/**
+ * _scsih_sas_ir_operation_status_event - handle RAID operation events
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_sas_ir_operation_status_event(struct MPT3SAS_ADAPTER *ioc,
+	struct fw_event_work *fw_event)
+{
+	Mpi2EventDataIrOperationStatus_t *event_data = fw_event->event_data;
+	static struct _raid_device *raid_device;
+	unsigned long flags;
+	u16 handle;
+
+#ifdef CONFIG_SCSI_MPT3SAS_LOGGING
+	if (ioc->logging_level & MPT_DEBUG_EVENT_WORK_TASK)
+		_scsih_sas_ir_operation_status_event_debug(ioc,
+		     event_data);
+#endif
+
+	/* code added for raid transport support */
+	if (event_data->RAIDOperation == MPI2_EVENT_IR_RAIDOP_RESYNC) {
+
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		handle = le16_to_cpu(event_data->VolDevHandle);
+		raid_device = _scsih_raid_device_find_by_handle(ioc, handle);
+		if (raid_device)
+			raid_device->percent_complete =
+			    event_data->PercentComplete;
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+	}
+}
+
+/**
+ * _scsih_prep_device_scan - initialize parameters prior to device scan
+ * @ioc: per adapter object
+ *
+ * Set the deleted flag prior to device scan.  If the device is found during
+ * the scan, then we clear the deleted flag.
+ */
+static void
+_scsih_prep_device_scan(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct MPT3SAS_DEVICE *sas_device_priv_data;
+	struct scsi_device *sdev;
+
+	shost_for_each_device(sdev, ioc->shost) {
+		sas_device_priv_data = sdev->hostdata;
+		if (sas_device_priv_data && sas_device_priv_data->sas_target)
+			sas_device_priv_data->sas_target->deleted = 1;
+	}
+}
+
+/**
+ * _scsih_mark_responding_sas_device - mark a sas_devices as responding
+ * @ioc: per adapter object
+ * @sas_address: sas address
+ * @slot: enclosure slot id
+ * @handle: device handle
+ *
+ * After host reset, find out whether devices are still responding.
+ * Used in _scsih_remove_unresponsive_sas_devices.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_mark_responding_sas_device(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
+	u16 slot, u16 handle)
+{
+	struct MPT3SAS_TARGET *sas_target_priv_data = NULL;
+	struct scsi_target *starget;
+	struct _sas_device *sas_device;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
+		if (sas_device->sas_address == sas_address &&
+		    sas_device->slot == slot) {
+			sas_device->responding = 1;
+			starget = sas_device->starget;
+			if (starget && starget->hostdata) {
+				sas_target_priv_data = starget->hostdata;
+				sas_target_priv_data->tm_busy = 0;
+				sas_target_priv_data->deleted = 0;
+			} else
+				sas_target_priv_data = NULL;
+			if (starget)
+				starget_printk(KERN_INFO, starget,
+				    "handle(0x%04x), sas_addr(0x%016llx), "
+				    "enclosure logical id(0x%016llx), "
+				    "slot(%d)\n", handle,
+				    (unsigned long long)sas_device->sas_address,
+				    (unsigned long long)
+				    sas_device->enclosure_logical_id,
+				    sas_device->slot);
+			if (sas_device->handle == handle)
+				goto out;
+			pr_info("\thandle changed from(0x%04x)!!!\n",
+			    sas_device->handle);
+			sas_device->handle = handle;
+			if (sas_target_priv_data)
+				sas_target_priv_data->handle = handle;
+			goto out;
+		}
+	}
+ out:
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+}
+
+/**
+ * _scsih_search_responding_sas_devices -
+ * @ioc: per adapter object
+ *
+ * After host reset, find out whether devices are still responding.
+ * If not remove.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_search_responding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u16 ioc_status;
+	u16 handle;
+	u32 device_info;
+
+	pr_info(MPT3SAS_FMT "search for end-devices: start\n", ioc->name);
+
+	if (list_empty(&ioc->sas_device_list))
+		goto out;
+
+	handle = 0xFFFF;
+	while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
+	    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
+	    handle))) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+			break;
+		handle = le16_to_cpu(sas_device_pg0.DevHandle);
+		device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
+		if (!(_scsih_is_end_device(device_info)))
+			continue;
+		_scsih_mark_responding_sas_device(ioc,
+		    le64_to_cpu(sas_device_pg0.SASAddress),
+		    le16_to_cpu(sas_device_pg0.Slot), handle);
+	}
+
+ out:
+	pr_info(MPT3SAS_FMT "search for end-devices: complete\n",
+	    ioc->name);
+}
+
+/**
+ * _scsih_mark_responding_raid_device - mark a raid_device as responding
+ * @ioc: per adapter object
+ * @wwid: world wide identifier for raid volume
+ * @handle: device handle
+ *
+ * After host reset, find out whether devices are still responding.
+ * Used in _scsih_remove_unresponsive_raid_devices.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_mark_responding_raid_device(struct MPT3SAS_ADAPTER *ioc, u64 wwid,
+	u16 handle)
+{
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct scsi_target *starget;
+	struct _raid_device *raid_device;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->raid_device_lock, flags);
+	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
+		if (raid_device->wwid == wwid && raid_device->starget) {
+			starget = raid_device->starget;
+			if (starget && starget->hostdata) {
+				sas_target_priv_data = starget->hostdata;
+				sas_target_priv_data->deleted = 0;
+			} else
+				sas_target_priv_data = NULL;
+			raid_device->responding = 1;
+			spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+			starget_printk(KERN_INFO, raid_device->starget,
+			    "handle(0x%04x), wwid(0x%016llx)\n", handle,
+			    (unsigned long long)raid_device->wwid);
+			spin_lock_irqsave(&ioc->raid_device_lock, flags);
+			if (raid_device->handle == handle) {
+				spin_unlock_irqrestore(&ioc->raid_device_lock,
+				    flags);
+				return;
+			}
+			pr_info("\thandle changed from(0x%04x)!!!\n",
+			    raid_device->handle);
+			raid_device->handle = handle;
+			if (sas_target_priv_data)
+				sas_target_priv_data->handle = handle;
+			spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+			return;
+		}
+	}
+	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+}
+
+/**
+ * _scsih_search_responding_raid_devices -
+ * @ioc: per adapter object
+ *
+ * After host reset, find out whether devices are still responding.
+ * If not remove.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_search_responding_raid_devices(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi2RaidVolPage1_t volume_pg1;
+	Mpi2RaidVolPage0_t volume_pg0;
+	Mpi2RaidPhysDiskPage0_t pd_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u16 ioc_status;
+	u16 handle;
+	u8 phys_disk_num;
+
+	if (!ioc->ir_firmware)
+		return;
+
+	pr_info(MPT3SAS_FMT "search for raid volumes: start\n",
+	    ioc->name);
+
+	if (list_empty(&ioc->raid_device_list))
+		goto out;
+
+	handle = 0xFFFF;
+	while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
+	    &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+			break;
+		handle = le16_to_cpu(volume_pg1.DevHandle);
+
+		if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
+		    &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
+		     sizeof(Mpi2RaidVolPage0_t)))
+			continue;
+
+		if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
+		    volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
+		    volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED)
+			_scsih_mark_responding_raid_device(ioc,
+			    le64_to_cpu(volume_pg1.WWID), handle);
+	}
+
+	/* refresh the pd_handles */
+		phys_disk_num = 0xFF;
+		memset(ioc->pd_handles, 0, ioc->pd_handles_sz);
+		while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
+		    &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
+		    phys_disk_num))) {
+			ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+			    MPI2_IOCSTATUS_MASK;
+			if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+				break;
+			phys_disk_num = pd_pg0.PhysDiskNum;
+			handle = le16_to_cpu(pd_pg0.DevHandle);
+			set_bit(handle, ioc->pd_handles);
+		}
+ out:
+	pr_info(MPT3SAS_FMT "search for responding raid volumes: complete\n",
+		ioc->name);
+}
+
+/**
+ * _scsih_mark_responding_expander - mark a expander as responding
+ * @ioc: per adapter object
+ * @sas_address: sas address
+ * @handle:
+ *
+ * After host reset, find out whether devices are still responding.
+ * Used in _scsih_remove_unresponsive_expanders.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_mark_responding_expander(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
+	u16 handle)
+{
+	struct _sas_node *sas_expander;
+	unsigned long flags;
+	int i;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) {
+		if (sas_expander->sas_address != sas_address)
+			continue;
+		sas_expander->responding = 1;
+		if (sas_expander->handle == handle)
+			goto out;
+		pr_info("\texpander(0x%016llx): handle changed" \
+		    " from(0x%04x) to (0x%04x)!!!\n",
+		    (unsigned long long)sas_expander->sas_address,
+		    sas_expander->handle, handle);
+		sas_expander->handle = handle;
+		for (i = 0 ; i < sas_expander->num_phys ; i++)
+			sas_expander->phy[i].handle = handle;
+		goto out;
+	}
+ out:
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+}
+
+/**
+ * _scsih_search_responding_expanders -
+ * @ioc: per adapter object
+ *
+ * After host reset, find out whether devices are still responding.
+ * If not remove.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_search_responding_expanders(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi2ExpanderPage0_t expander_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u16 ioc_status;
+	u64 sas_address;
+	u16 handle;
+
+	pr_info(MPT3SAS_FMT "search for expanders: start\n", ioc->name);
+
+	if (list_empty(&ioc->sas_expander_list))
+		goto out;
+
+	handle = 0xFFFF;
+	while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
+	    MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
+
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+			break;
+
+		handle = le16_to_cpu(expander_pg0.DevHandle);
+		sas_address = le64_to_cpu(expander_pg0.SASAddress);
+		pr_info("\texpander present: handle(0x%04x), sas_addr(0x%016llx)\n",
+			handle,
+		    (unsigned long long)sas_address);
+		_scsih_mark_responding_expander(ioc, sas_address, handle);
+	}
+
+ out:
+	pr_info(MPT3SAS_FMT "search for expanders: complete\n", ioc->name);
+}
+
+/**
+ * _scsih_remove_unresponding_sas_devices - removing unresponding devices
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_scsih_remove_unresponding_sas_devices(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct _sas_device *sas_device, *sas_device_next;
+	struct _sas_node *sas_expander, *sas_expander_next;
+	struct _raid_device *raid_device, *raid_device_next;
+	struct list_head tmp_list;
+	unsigned long flags;
+
+	pr_info(MPT3SAS_FMT "removing unresponding devices: start\n",
+	    ioc->name);
+
+	/* removing unresponding end devices */
+	pr_info(MPT3SAS_FMT "removing unresponding devices: end-devices\n",
+	    ioc->name);
+	list_for_each_entry_safe(sas_device, sas_device_next,
+	    &ioc->sas_device_list, list) {
+		if (!sas_device->responding)
+			mpt3sas_device_remove_by_sas_address(ioc,
+			    sas_device->sas_address);
+		else
+			sas_device->responding = 0;
+	}
+
+	/* removing unresponding volumes */
+	if (ioc->ir_firmware) {
+		pr_info(MPT3SAS_FMT "removing unresponding devices: volumes\n",
+			ioc->name);
+		list_for_each_entry_safe(raid_device, raid_device_next,
+		    &ioc->raid_device_list, list) {
+			if (!raid_device->responding)
+				_scsih_sas_volume_delete(ioc,
+				    raid_device->handle);
+			else
+				raid_device->responding = 0;
+		}
+	}
+
+	/* removing unresponding expanders */
+	pr_info(MPT3SAS_FMT "removing unresponding devices: expanders\n",
+	    ioc->name);
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	INIT_LIST_HEAD(&tmp_list);
+	list_for_each_entry_safe(sas_expander, sas_expander_next,
+	    &ioc->sas_expander_list, list) {
+		if (!sas_expander->responding)
+			list_move_tail(&sas_expander->list, &tmp_list);
+		else
+			sas_expander->responding = 0;
+	}
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+	list_for_each_entry_safe(sas_expander, sas_expander_next, &tmp_list,
+	    list) {
+		list_del(&sas_expander->list);
+		_scsih_expander_node_remove(ioc, sas_expander);
+	}
+
+	pr_info(MPT3SAS_FMT "removing unresponding devices: complete\n",
+	    ioc->name);
+
+	/* unblock devices */
+	_scsih_ublock_io_all_device(ioc);
+}
+
+static void
+_scsih_refresh_expander_links(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_node *sas_expander, u16 handle)
+{
+	Mpi2ExpanderPage1_t expander_pg1;
+	Mpi2ConfigReply_t mpi_reply;
+	int i;
+
+	for (i = 0 ; i < sas_expander->num_phys ; i++) {
+		if ((mpt3sas_config_get_expander_pg1(ioc, &mpi_reply,
+		    &expander_pg1, i, handle))) {
+			pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+			    ioc->name, __FILE__, __LINE__, __func__);
+			return;
+		}
+
+		mpt3sas_transport_update_links(ioc, sas_expander->sas_address,
+		    le16_to_cpu(expander_pg1.AttachedDevHandle), i,
+		    expander_pg1.NegotiatedLinkRate >> 4);
+	}
+}
+
+/**
+ * _scsih_scan_for_devices_after_reset - scan for devices after host reset
+ * @ioc: per adapter object
+ *
+ * Return nothing.
+ */
+static void
+_scsih_scan_for_devices_after_reset(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi2ExpanderPage0_t expander_pg0;
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	Mpi2RaidVolPage1_t volume_pg1;
+	Mpi2RaidVolPage0_t volume_pg0;
+	Mpi2RaidPhysDiskPage0_t pd_pg0;
+	Mpi2EventIrConfigElement_t element;
+	Mpi2ConfigReply_t mpi_reply;
+	u8 phys_disk_num;
+	u16 ioc_status;
+	u16 handle, parent_handle;
+	u64 sas_address;
+	struct _sas_device *sas_device;
+	struct _sas_node *expander_device;
+	static struct _raid_device *raid_device;
+	u8 retry_count;
+	unsigned long flags;
+
+	pr_info(MPT3SAS_FMT "scan devices: start\n", ioc->name);
+
+	_scsih_sas_host_refresh(ioc);
+
+	pr_info(MPT3SAS_FMT "\tscan devices: expanders start\n", ioc->name);
+
+	/* expanders */
+	handle = 0xFFFF;
+	while (!(mpt3sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0,
+	    MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+			break;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_info(MPT3SAS_FMT "\tbreak from expander scan: " \
+			    "ioc_status(0x%04x), loginfo(0x%08x)\n",
+			    ioc->name, ioc_status,
+			    le32_to_cpu(mpi_reply.IOCLogInfo));
+			break;
+		}
+		handle = le16_to_cpu(expander_pg0.DevHandle);
+		spin_lock_irqsave(&ioc->sas_node_lock, flags);
+		expander_device = mpt3sas_scsih_expander_find_by_sas_address(
+		    ioc, le64_to_cpu(expander_pg0.SASAddress));
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		if (expander_device)
+			_scsih_refresh_expander_links(ioc, expander_device,
+			    handle);
+		else {
+			pr_info(MPT3SAS_FMT "\tBEFORE adding expander: " \
+			    "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
+			    handle, (unsigned long long)
+			    le64_to_cpu(expander_pg0.SASAddress));
+			_scsih_expander_add(ioc, handle);
+			pr_info(MPT3SAS_FMT "\tAFTER adding expander: " \
+			    "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
+			    handle, (unsigned long long)
+			    le64_to_cpu(expander_pg0.SASAddress));
+		}
+	}
+
+	pr_info(MPT3SAS_FMT "\tscan devices: expanders complete\n",
+	    ioc->name);
+
+	if (!ioc->ir_firmware)
+		goto skip_to_sas;
+
+	pr_info(MPT3SAS_FMT "\tscan devices: phys disk start\n", ioc->name);
+
+	/* phys disk */
+	phys_disk_num = 0xFF;
+	while (!(mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply,
+	    &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM,
+	    phys_disk_num))) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+			break;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_info(MPT3SAS_FMT "\tbreak from phys disk scan: "\
+			    "ioc_status(0x%04x), loginfo(0x%08x)\n",
+			    ioc->name, ioc_status,
+			    le32_to_cpu(mpi_reply.IOCLogInfo));
+			break;
+		}
+		phys_disk_num = pd_pg0.PhysDiskNum;
+		handle = le16_to_cpu(pd_pg0.DevHandle);
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = _scsih_sas_device_find_by_handle(ioc, handle);
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		if (sas_device)
+			continue;
+		if (mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
+		    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
+		    handle) != 0)
+			continue;
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_info(MPT3SAS_FMT "\tbreak from phys disk scan " \
+			    "ioc_status(0x%04x), loginfo(0x%08x)\n",
+			    ioc->name, ioc_status,
+			    le32_to_cpu(mpi_reply.IOCLogInfo));
+			break;
+		}
+		parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
+		if (!_scsih_get_sas_address(ioc, parent_handle,
+		    &sas_address)) {
+			pr_info(MPT3SAS_FMT "\tBEFORE adding phys disk: " \
+			    " handle (0x%04x), sas_addr(0x%016llx)\n",
+			    ioc->name, handle, (unsigned long long)
+			    le64_to_cpu(sas_device_pg0.SASAddress));
+			mpt3sas_transport_update_links(ioc, sas_address,
+			    handle, sas_device_pg0.PhyNum,
+			    MPI2_SAS_NEG_LINK_RATE_1_5);
+			set_bit(handle, ioc->pd_handles);
+			retry_count = 0;
+			/* This will retry adding the end device.
+			 * _scsih_add_device() will decide on retries and
+			 * return "1" when it should be retried
+			 */
+			while (_scsih_add_device(ioc, handle, retry_count++,
+			    1)) {
+				ssleep(1);
+			}
+			pr_info(MPT3SAS_FMT "\tAFTER adding phys disk: " \
+			    " handle (0x%04x), sas_addr(0x%016llx)\n",
+			    ioc->name, handle, (unsigned long long)
+			    le64_to_cpu(sas_device_pg0.SASAddress));
+		}
+	}
+
+	pr_info(MPT3SAS_FMT "\tscan devices: phys disk complete\n",
+	    ioc->name);
+
+	pr_info(MPT3SAS_FMT "\tscan devices: volumes start\n", ioc->name);
+
+	/* volumes */
+	handle = 0xFFFF;
+	while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply,
+	    &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+			break;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
+			    "ioc_status(0x%04x), loginfo(0x%08x)\n",
+			    ioc->name, ioc_status,
+			    le32_to_cpu(mpi_reply.IOCLogInfo));
+			break;
+		}
+		handle = le16_to_cpu(volume_pg1.DevHandle);
+		spin_lock_irqsave(&ioc->raid_device_lock, flags);
+		raid_device = _scsih_raid_device_find_by_wwid(ioc,
+		    le64_to_cpu(volume_pg1.WWID));
+		spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
+		if (raid_device)
+			continue;
+		if (mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply,
+		    &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle,
+		     sizeof(Mpi2RaidVolPage0_t)))
+			continue;
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_info(MPT3SAS_FMT "\tbreak from volume scan: " \
+			    "ioc_status(0x%04x), loginfo(0x%08x)\n",
+			    ioc->name, ioc_status,
+			    le32_to_cpu(mpi_reply.IOCLogInfo));
+			break;
+		}
+		if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL ||
+		    volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE ||
+		    volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) {
+			memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t));
+			element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED;
+			element.VolDevHandle = volume_pg1.DevHandle;
+			pr_info(MPT3SAS_FMT
+				"\tBEFORE adding volume: handle (0x%04x)\n",
+				ioc->name, volume_pg1.DevHandle);
+			_scsih_sas_volume_add(ioc, &element);
+			pr_info(MPT3SAS_FMT
+				"\tAFTER adding volume: handle (0x%04x)\n",
+				ioc->name, volume_pg1.DevHandle);
+		}
+	}
+
+	pr_info(MPT3SAS_FMT "\tscan devices: volumes complete\n",
+	    ioc->name);
+
+ skip_to_sas:
+
+	pr_info(MPT3SAS_FMT "\tscan devices: end devices start\n",
+	    ioc->name);
+
+	/* sas devices */
+	handle = 0xFFFF;
+	while (!(mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply,
+	    &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE,
+	    handle))) {
+		ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+		    MPI2_IOCSTATUS_MASK;
+		if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE)
+			break;
+		if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+			pr_info(MPT3SAS_FMT "\tbreak from end device scan:"\
+			    " ioc_status(0x%04x), loginfo(0x%08x)\n",
+			    ioc->name, ioc_status,
+			    le32_to_cpu(mpi_reply.IOCLogInfo));
+			break;
+		}
+		handle = le16_to_cpu(sas_device_pg0.DevHandle);
+		if (!(_scsih_is_end_device(
+		    le32_to_cpu(sas_device_pg0.DeviceInfo))))
+			continue;
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+		    le64_to_cpu(sas_device_pg0.SASAddress));
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+		if (sas_device)
+			continue;
+		parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle);
+		if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) {
+			pr_info(MPT3SAS_FMT "\tBEFORE adding end device: " \
+			    "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
+			    handle, (unsigned long long)
+			    le64_to_cpu(sas_device_pg0.SASAddress));
+			mpt3sas_transport_update_links(ioc, sas_address, handle,
+			    sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5);
+			retry_count = 0;
+			/* This will retry adding the end device.
+			 * _scsih_add_device() will decide on retries and
+			 * return "1" when it should be retried
+			 */
+			while (_scsih_add_device(ioc, handle, retry_count++,
+			    0)) {
+				ssleep(1);
+			}
+			pr_info(MPT3SAS_FMT "\tAFTER adding end device: " \
+			    "handle (0x%04x), sas_addr(0x%016llx)\n", ioc->name,
+			    handle, (unsigned long long)
+			    le64_to_cpu(sas_device_pg0.SASAddress));
+		}
+	}
+	pr_info(MPT3SAS_FMT "\tscan devices: end devices complete\n",
+	    ioc->name);
+
+	pr_info(MPT3SAS_FMT "scan devices: complete\n", ioc->name);
+}
+/**
+ * mpt3sas_scsih_reset_handler - reset callback handler (for scsih)
+ * @ioc: per adapter object
+ * @reset_phase: phase
+ *
+ * The handler for doing any required cleanup or initialization.
+ *
+ * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
+ * MPT3_IOC_DONE_RESET
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_scsih_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
+{
+	switch (reset_phase) {
+	case MPT3_IOC_PRE_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
+		break;
+	case MPT3_IOC_AFTER_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
+		if (ioc->scsih_cmds.status & MPT3_CMD_PENDING) {
+			ioc->scsih_cmds.status |= MPT3_CMD_RESET;
+			mpt3sas_base_free_smid(ioc, ioc->scsih_cmds.smid);
+			complete(&ioc->scsih_cmds.done);
+		}
+		if (ioc->tm_cmds.status & MPT3_CMD_PENDING) {
+			ioc->tm_cmds.status |= MPT3_CMD_RESET;
+			mpt3sas_base_free_smid(ioc, ioc->tm_cmds.smid);
+			complete(&ioc->tm_cmds.done);
+		}
+
+		_scsih_fw_event_cleanup_queue(ioc);
+		_scsih_flush_running_cmds(ioc);
+		break;
+	case MPT3_IOC_DONE_RESET:
+		dtmprintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
+		if ((!ioc->is_driver_loading) && !(disable_discovery > 0 &&
+		    !ioc->sas_hba.num_phys)) {
+			_scsih_prep_device_scan(ioc);
+			_scsih_search_responding_sas_devices(ioc);
+			_scsih_search_responding_raid_devices(ioc);
+			_scsih_search_responding_expanders(ioc);
+			_scsih_error_recovery_delete_devices(ioc);
+		}
+		break;
+	}
+}
+
+/**
+ * _mpt3sas_fw_work - delayed task for processing firmware events
+ * @ioc: per adapter object
+ * @fw_event: The fw_event_work object
+ * Context: user.
+ *
+ * Return nothing.
+ */
+static void
+_mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event)
+{
+	/* the queue is being flushed so ignore this event */
+	if (ioc->remove_host || fw_event->cancel_pending_work ||
+	    ioc->pci_error_recovery) {
+		_scsih_fw_event_free(ioc, fw_event);
+		return;
+	}
+
+	switch (fw_event->event) {
+	case MPT3SAS_PROCESS_TRIGGER_DIAG:
+		mpt3sas_process_trigger_data(ioc, fw_event->event_data);
+		break;
+	case MPT3SAS_REMOVE_UNRESPONDING_DEVICES:
+		while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery)
+			ssleep(1);
+		_scsih_remove_unresponding_sas_devices(ioc);
+		_scsih_scan_for_devices_after_reset(ioc);
+		break;
+	case MPT3SAS_PORT_ENABLE_COMPLETE:
+		ioc->start_scan = 0;
+	if (missing_delay[0] != -1 && missing_delay[1] != -1)
+			mpt3sas_base_update_missing_delay(ioc, missing_delay[0],
+			    missing_delay[1]);
+		dewtprintk(ioc, pr_info(MPT3SAS_FMT
+			"port enable: complete from worker thread\n",
+			ioc->name));
+		break;
+	case MPT3SAS_TURN_ON_FAULT_LED:
+		_scsih_turn_on_fault_led(ioc, fw_event->device_handle);
+		break;
+	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
+		_scsih_sas_topology_change_event(ioc, fw_event);
+		break;
+	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
+		_scsih_sas_device_status_change_event(ioc, fw_event);
+		break;
+	case MPI2_EVENT_SAS_DISCOVERY:
+		_scsih_sas_discovery_event(ioc, fw_event);
+		break;
+	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
+		_scsih_sas_broadcast_primitive_event(ioc, fw_event);
+		break;
+	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
+		_scsih_sas_enclosure_dev_status_change_event(ioc,
+		    fw_event);
+		break;
+	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
+		_scsih_sas_ir_config_change_event(ioc, fw_event);
+		break;
+	case MPI2_EVENT_IR_VOLUME:
+		_scsih_sas_ir_volume_event(ioc, fw_event);
+		break;
+	case MPI2_EVENT_IR_PHYSICAL_DISK:
+		_scsih_sas_ir_physical_disk_event(ioc, fw_event);
+		break;
+	case MPI2_EVENT_IR_OPERATION_STATUS:
+		_scsih_sas_ir_operation_status_event(ioc, fw_event);
+		break;
+	}
+	_scsih_fw_event_free(ioc, fw_event);
+}
+
+/**
+ * _firmware_event_work
+ * @ioc: per adapter object
+ * @work: The fw_event_work object
+ * Context: user.
+ *
+ * wrappers for the work thread handling firmware events
+ *
+ * Return nothing.
+ */
+
+static void
+_firmware_event_work(struct work_struct *work)
+{
+	struct fw_event_work *fw_event = container_of(work,
+	    struct fw_event_work, work);
+
+	_mpt3sas_fw_work(fw_event->ioc, fw_event);
+}
+
+/**
+ * mpt3sas_scsih_event_callback - firmware event handler (called at ISR time)
+ * @ioc: per adapter object
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ * Context: interrupt.
+ *
+ * This function merely adds a new work task into ioc->firmware_event_thread.
+ * The tasks are worked from _firmware_event_work in user context.
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_scsih_event_callback(struct MPT3SAS_ADAPTER *ioc, u8 msix_index,
+	u32 reply)
+{
+	struct fw_event_work *fw_event;
+	Mpi2EventNotificationReply_t *mpi_reply;
+	u16 event;
+	u16 sz;
+
+	/* events turned off due to host reset or driver unloading */
+	if (ioc->remove_host || ioc->pci_error_recovery)
+		return 1;
+
+	mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply);
+
+	if (unlikely(!mpi_reply)) {
+		pr_err(MPT3SAS_FMT "mpi_reply not valid at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return 1;
+	}
+
+	event = le16_to_cpu(mpi_reply->Event);
+
+	if (event != MPI2_EVENT_LOG_ENTRY_ADDED)
+		mpt3sas_trigger_event(ioc, event, 0);
+
+	switch (event) {
+	/* handle these */
+	case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
+	{
+		Mpi2EventDataSasBroadcastPrimitive_t *baen_data =
+		    (Mpi2EventDataSasBroadcastPrimitive_t *)
+		    mpi_reply->EventData;
+
+		if (baen_data->Primitive !=
+		    MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT)
+			return 1;
+
+		if (ioc->broadcast_aen_busy) {
+			ioc->broadcast_aen_pending++;
+			return 1;
+		} else
+			ioc->broadcast_aen_busy = 1;
+		break;
+	}
+
+	case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
+		_scsih_check_topo_delete_events(ioc,
+		    (Mpi2EventDataSasTopologyChangeList_t *)
+		    mpi_reply->EventData);
+		break;
+	case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
+		_scsih_check_ir_config_unhide_events(ioc,
+		    (Mpi2EventDataIrConfigChangeList_t *)
+		    mpi_reply->EventData);
+		break;
+	case MPI2_EVENT_IR_VOLUME:
+		_scsih_check_volume_delete_events(ioc,
+		    (Mpi2EventDataIrVolume_t *)
+		    mpi_reply->EventData);
+		break;
+
+	case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
+	case MPI2_EVENT_IR_OPERATION_STATUS:
+	case MPI2_EVENT_SAS_DISCOVERY:
+	case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
+	case MPI2_EVENT_IR_PHYSICAL_DISK:
+		break;
+
+	default: /* ignore the rest */
+		return 1;
+	}
+
+	fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC);
+	if (!fw_event) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return 1;
+	}
+	sz = le16_to_cpu(mpi_reply->EventDataLength) * 4;
+	fw_event->event_data = kzalloc(sz, GFP_ATOMIC);
+	if (!fw_event->event_data) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		kfree(fw_event);
+		return 1;
+	}
+
+	memcpy(fw_event->event_data, mpi_reply->EventData, sz);
+	fw_event->ioc = ioc;
+	fw_event->VF_ID = mpi_reply->VF_ID;
+	fw_event->VP_ID = mpi_reply->VP_ID;
+	fw_event->event = event;
+	_scsih_fw_event_add(ioc, fw_event);
+	return 1;
+}
+
+/* shost template */
+static struct scsi_host_template scsih_driver_template = {
+	.module				= THIS_MODULE,
+	.name				= "Fusion MPT SAS Host",
+	.proc_name			= MPT3SAS_DRIVER_NAME,
+	.queuecommand			= _scsih_qcmd,
+	.target_alloc			= _scsih_target_alloc,
+	.slave_alloc			= _scsih_slave_alloc,
+	.slave_configure		= _scsih_slave_configure,
+	.target_destroy			= _scsih_target_destroy,
+	.slave_destroy			= _scsih_slave_destroy,
+	.scan_finished			= _scsih_scan_finished,
+	.scan_start			= _scsih_scan_start,
+	.change_queue_depth		= _scsih_change_queue_depth,
+	.change_queue_type		= _scsih_change_queue_type,
+	.eh_abort_handler		= _scsih_abort,
+	.eh_device_reset_handler	= _scsih_dev_reset,
+	.eh_target_reset_handler	= _scsih_target_reset,
+	.eh_host_reset_handler		= _scsih_host_reset,
+	.bios_param			= _scsih_bios_param,
+	.can_queue			= 1,
+	.this_id			= -1,
+	.sg_tablesize			= MPT3SAS_SG_DEPTH,
+	.max_sectors			= 32767,
+	.cmd_per_lun			= 7,
+	.use_clustering			= ENABLE_CLUSTERING,
+	.shost_attrs			= mpt3sas_host_attrs,
+	.sdev_attrs			= mpt3sas_dev_attrs,
+};
+
+/**
+ * _scsih_expander_node_remove - removing expander device from list.
+ * @ioc: per adapter object
+ * @sas_expander: the sas_device object
+ * Context: Calling function should acquire ioc->sas_node_lock.
+ *
+ * Removing object and freeing associated memory from the
+ * ioc->sas_expander_list.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_expander_node_remove(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_node *sas_expander)
+{
+	struct _sas_port *mpt3sas_port, *next;
+
+	/* remove sibling ports attached to this expander */
+	list_for_each_entry_safe(mpt3sas_port, next,
+	   &sas_expander->sas_port_list, port_list) {
+		if (ioc->shost_recovery)
+			return;
+		if (mpt3sas_port->remote_identify.device_type ==
+		    SAS_END_DEVICE)
+			mpt3sas_device_remove_by_sas_address(ioc,
+			    mpt3sas_port->remote_identify.sas_address);
+		else if (mpt3sas_port->remote_identify.device_type ==
+		    SAS_EDGE_EXPANDER_DEVICE ||
+		    mpt3sas_port->remote_identify.device_type ==
+		    SAS_FANOUT_EXPANDER_DEVICE)
+			mpt3sas_expander_remove(ioc,
+			    mpt3sas_port->remote_identify.sas_address);
+	}
+
+	mpt3sas_transport_port_remove(ioc, sas_expander->sas_address,
+	    sas_expander->sas_address_parent);
+
+	pr_info(MPT3SAS_FMT
+		"expander_remove: handle(0x%04x), sas_addr(0x%016llx)\n",
+		ioc->name,
+	    sas_expander->handle, (unsigned long long)
+	    sas_expander->sas_address);
+
+	kfree(sas_expander->phy);
+	kfree(sas_expander);
+}
+
+/**
+ * _scsih_ir_shutdown - IR shutdown notification
+ * @ioc: per adapter object
+ *
+ * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
+ * the host system is shutting down.
+ *
+ * Return nothing.
+ */
+static void
+_scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
+{
+	Mpi2RaidActionRequest_t *mpi_request;
+	Mpi2RaidActionReply_t *mpi_reply;
+	u16 smid;
+
+	/* is IR firmware build loaded ? */
+	if (!ioc->ir_firmware)
+		return;
+
+	/* are there any volumes ? */
+	if (list_empty(&ioc->raid_device_list))
+		return;
+
+	mutex_lock(&ioc->scsih_cmds.mutex);
+
+	if (ioc->scsih_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: scsih_cmd in use\n",
+		    ioc->name, __func__);
+		goto out;
+	}
+	ioc->scsih_cmds.status = MPT3_CMD_PENDING;
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->scsih_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
+		goto out;
+	}
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->scsih_cmds.smid = smid;
+	memset(mpi_request, 0, sizeof(Mpi2RaidActionRequest_t));
+
+	mpi_request->Function = MPI2_FUNCTION_RAID_ACTION;
+	mpi_request->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
+
+	pr_info(MPT3SAS_FMT "IR shutdown (sending)\n", ioc->name);
+	init_completion(&ioc->scsih_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
+
+	if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		goto out;
+	}
+
+	if (ioc->scsih_cmds.status & MPT3_CMD_REPLY_VALID) {
+		mpi_reply = ioc->scsih_cmds.reply;
+		pr_info(MPT3SAS_FMT
+			"IR shutdown (complete): ioc_status(0x%04x), loginfo(0x%08x)\n",
+		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
+		    le32_to_cpu(mpi_reply->IOCLogInfo));
+	}
+
+ out:
+	ioc->scsih_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_unlock(&ioc->scsih_cmds.mutex);
+}
+
+/**
+ * _scsih_remove - detach and remove add host
+ * @pdev: PCI device struct
+ *
+ * Routine called when unloading the driver.
+ * Return nothing.
+ */
+static void __devexit
+_scsih_remove(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	struct _sas_port *mpt3sas_port, *next_port;
+	struct _raid_device *raid_device, *next;
+	struct MPT3SAS_TARGET *sas_target_priv_data;
+	struct workqueue_struct	*wq;
+	unsigned long flags;
+
+	ioc->remove_host = 1;
+	_scsih_fw_event_cleanup_queue(ioc);
+
+	spin_lock_irqsave(&ioc->fw_event_lock, flags);
+	wq = ioc->firmware_event_thread;
+	ioc->firmware_event_thread = NULL;
+	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+	if (wq)
+		destroy_workqueue(wq);
+
+	/* release all the volumes */
+	_scsih_ir_shutdown(ioc);
+	list_for_each_entry_safe(raid_device, next, &ioc->raid_device_list,
+	    list) {
+		if (raid_device->starget) {
+			sas_target_priv_data =
+			    raid_device->starget->hostdata;
+			sas_target_priv_data->deleted = 1;
+			scsi_remove_target(&raid_device->starget->dev);
+		}
+		pr_info(MPT3SAS_FMT "removing handle(0x%04x), wwid(0x%016llx)\n",
+			ioc->name,  raid_device->handle,
+		    (unsigned long long) raid_device->wwid);
+		_scsih_raid_device_remove(ioc, raid_device);
+	}
+
+	/* free ports attached to the sas_host */
+	list_for_each_entry_safe(mpt3sas_port, next_port,
+	   &ioc->sas_hba.sas_port_list, port_list) {
+		if (mpt3sas_port->remote_identify.device_type ==
+		    SAS_END_DEVICE)
+			mpt3sas_device_remove_by_sas_address(ioc,
+			    mpt3sas_port->remote_identify.sas_address);
+		else if (mpt3sas_port->remote_identify.device_type ==
+		    SAS_EDGE_EXPANDER_DEVICE ||
+		    mpt3sas_port->remote_identify.device_type ==
+		    SAS_FANOUT_EXPANDER_DEVICE)
+			mpt3sas_expander_remove(ioc,
+			    mpt3sas_port->remote_identify.sas_address);
+	}
+
+	/* free phys attached to the sas_host */
+	if (ioc->sas_hba.num_phys) {
+		kfree(ioc->sas_hba.phy);
+		ioc->sas_hba.phy = NULL;
+		ioc->sas_hba.num_phys = 0;
+	}
+
+	sas_remove_host(shost);
+	mpt3sas_base_detach(ioc);
+	list_del(&ioc->list);
+	scsi_remove_host(shost);
+	scsi_host_put(shost);
+}
+
+/**
+ * _scsih_shutdown - routine call during system shutdown
+ * @pdev: PCI device struct
+ *
+ * Return nothing.
+ */
+static void
+_scsih_shutdown(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	struct workqueue_struct	*wq;
+	unsigned long flags;
+
+	ioc->remove_host = 1;
+	_scsih_fw_event_cleanup_queue(ioc);
+
+	spin_lock_irqsave(&ioc->fw_event_lock, flags);
+	wq = ioc->firmware_event_thread;
+	ioc->firmware_event_thread = NULL;
+	spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
+	if (wq)
+		destroy_workqueue(wq);
+
+	_scsih_ir_shutdown(ioc);
+	mpt3sas_base_detach(ioc);
+}
+
+
+/**
+ * _scsih_probe_boot_devices - reports 1st device
+ * @ioc: per adapter object
+ *
+ * If specified in bios page 2, this routine reports the 1st
+ * device scsi-ml or sas transport for persistent boot device
+ * purposes.  Please refer to function _scsih_determine_boot_device()
+ */
+static void
+_scsih_probe_boot_devices(struct MPT3SAS_ADAPTER *ioc)
+{
+	u8 is_raid;
+	void *device;
+	struct _sas_device *sas_device;
+	struct _raid_device *raid_device;
+	u16 handle;
+	u64 sas_address_parent;
+	u64 sas_address;
+	unsigned long flags;
+	int rc;
+
+	 /* no Bios, return immediately */
+	if (!ioc->bios_pg3.BiosVersion)
+		return;
+
+	device = NULL;
+	is_raid = 0;
+	if (ioc->req_boot_device.device) {
+		device =  ioc->req_boot_device.device;
+		is_raid = ioc->req_boot_device.is_raid;
+	} else if (ioc->req_alt_boot_device.device) {
+		device =  ioc->req_alt_boot_device.device;
+		is_raid = ioc->req_alt_boot_device.is_raid;
+	} else if (ioc->current_boot_device.device) {
+		device =  ioc->current_boot_device.device;
+		is_raid = ioc->current_boot_device.is_raid;
+	}
+
+	if (!device)
+		return;
+
+	if (is_raid) {
+		raid_device = device;
+		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
+		    raid_device->id, 0);
+		if (rc)
+			_scsih_raid_device_remove(ioc, raid_device);
+	} else {
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		sas_device = device;
+		handle = sas_device->handle;
+		sas_address_parent = sas_device->sas_address_parent;
+		sas_address = sas_device->sas_address;
+		list_move_tail(&sas_device->list, &ioc->sas_device_list);
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+
+		if (!mpt3sas_transport_port_add(ioc, handle,
+		    sas_address_parent)) {
+			_scsih_sas_device_remove(ioc, sas_device);
+		} else if (!sas_device->starget) {
+			if (!ioc->is_driver_loading)
+				mpt3sas_transport_port_remove(ioc, sas_address,
+				    sas_address_parent);
+			_scsih_sas_device_remove(ioc, sas_device);
+		}
+	}
+}
+
+/**
+ * _scsih_probe_raid - reporting raid volumes to scsi-ml
+ * @ioc: per adapter object
+ *
+ * Called during initial loading of the driver.
+ */
+static void
+_scsih_probe_raid(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct _raid_device *raid_device, *raid_next;
+	int rc;
+
+	list_for_each_entry_safe(raid_device, raid_next,
+	    &ioc->raid_device_list, list) {
+		if (raid_device->starget)
+			continue;
+		rc = scsi_add_device(ioc->shost, RAID_CHANNEL,
+		    raid_device->id, 0);
+		if (rc)
+			_scsih_raid_device_remove(ioc, raid_device);
+	}
+}
+
+/**
+ * _scsih_probe_sas - reporting sas devices to sas transport
+ * @ioc: per adapter object
+ *
+ * Called during initial loading of the driver.
+ */
+static void
+_scsih_probe_sas(struct MPT3SAS_ADAPTER *ioc)
+{
+	struct _sas_device *sas_device, *next;
+	unsigned long flags;
+
+	/* SAS Device List */
+	list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list,
+	    list) {
+
+		if (!mpt3sas_transport_port_add(ioc, sas_device->handle,
+		    sas_device->sas_address_parent)) {
+			list_del(&sas_device->list);
+			kfree(sas_device);
+			continue;
+		} else if (!sas_device->starget) {
+			/*
+			 * When asyn scanning is enabled, its not possible to
+			 * remove devices while scanning is turned on due to an
+			 * oops in scsi_sysfs_add_sdev()->add_device()->
+			 * sysfs_addrm_start()
+			 */
+			if (!ioc->is_driver_loading)
+				mpt3sas_transport_port_remove(ioc,
+				    sas_device->sas_address,
+				    sas_device->sas_address_parent);
+			list_del(&sas_device->list);
+			kfree(sas_device);
+			continue;
+		}
+
+		spin_lock_irqsave(&ioc->sas_device_lock, flags);
+		list_move_tail(&sas_device->list, &ioc->sas_device_list);
+		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	}
+}
+
+/**
+ * _scsih_probe_devices - probing for devices
+ * @ioc: per adapter object
+ *
+ * Called during initial loading of the driver.
+ */
+static void
+_scsih_probe_devices(struct MPT3SAS_ADAPTER *ioc)
+{
+	u16 volume_mapping_flags;
+
+	if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR))
+		return;  /* return when IOC doesn't support initiator mode */
+
+	_scsih_probe_boot_devices(ioc);
+
+	if (ioc->ir_firmware) {
+		volume_mapping_flags =
+		    le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) &
+		    MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
+		if (volume_mapping_flags ==
+		    MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
+			_scsih_probe_raid(ioc);
+			_scsih_probe_sas(ioc);
+		} else {
+			_scsih_probe_sas(ioc);
+			_scsih_probe_raid(ioc);
+		}
+	} else
+		_scsih_probe_sas(ioc);
+}
+
+/**
+ * _scsih_scan_start - scsi lld callback for .scan_start
+ * @shost: SCSI host pointer
+ *
+ * The shost has the ability to discover targets on its own instead
+ * of scanning the entire bus.  In our implemention, we will kick off
+ * firmware discovery.
+ */
+static void
+_scsih_scan_start(struct Scsi_Host *shost)
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	int rc;
+	if (diag_buffer_enable != -1 && diag_buffer_enable != 0)
+		mpt3sas_enable_diag_buffer(ioc, diag_buffer_enable);
+
+	if (disable_discovery > 0)
+		return;
+
+	ioc->start_scan = 1;
+	rc = mpt3sas_port_enable(ioc);
+
+	if (rc != 0)
+		pr_info(MPT3SAS_FMT "port enable: FAILED\n", ioc->name);
+}
+
+/**
+ * _scsih_scan_finished - scsi lld callback for .scan_finished
+ * @shost: SCSI host pointer
+ * @time: elapsed time of the scan in jiffies
+ *
+ * This function will be called periodicallyn until it returns 1 with the
+ * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
+ * we wait for firmware discovery to complete, then return 1.
+ */
+static int
+_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	if (disable_discovery > 0) {
+		ioc->is_driver_loading = 0;
+		ioc->wait_for_discovery_to_complete = 0;
+		return 1;
+	}
+
+	if (time >= (300 * HZ)) {
+		ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+		pr_info(MPT3SAS_FMT
+			"port enable: FAILED with timeout (timeout=300s)\n",
+			ioc->name);
+		ioc->is_driver_loading = 0;
+		return 1;
+	}
+
+	if (ioc->start_scan)
+		return 0;
+
+	if (ioc->start_scan_failed) {
+		pr_info(MPT3SAS_FMT
+			"port enable: FAILED with (ioc_status=0x%08x)\n",
+			ioc->name, ioc->start_scan_failed);
+		ioc->is_driver_loading = 0;
+		ioc->wait_for_discovery_to_complete = 0;
+		ioc->remove_host = 1;
+		return 1;
+	}
+
+	pr_info(MPT3SAS_FMT "port enable: SUCCESS\n", ioc->name);
+	ioc->base_cmds.status = MPT3_CMD_NOT_USED;
+
+	if (ioc->wait_for_discovery_to_complete) {
+		ioc->wait_for_discovery_to_complete = 0;
+		_scsih_probe_devices(ioc);
+	}
+	mpt3sas_base_start_watchdog(ioc);
+	ioc->is_driver_loading = 0;
+	return 1;
+}
+
+/**
+ * _scsih_probe - attach and add scsi host
+ * @pdev: PCI device struct
+ * @id: pci device id
+ *
+ * Returns 0 success, anything else error.
+ */
+static int
+_scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	struct MPT3SAS_ADAPTER *ioc;
+	struct Scsi_Host *shost;
+
+	shost = scsi_host_alloc(&scsih_driver_template,
+	    sizeof(struct MPT3SAS_ADAPTER));
+	if (!shost)
+		return -ENODEV;
+
+	/* init local params */
+	ioc = shost_priv(shost);
+	memset(ioc, 0, sizeof(struct MPT3SAS_ADAPTER));
+	INIT_LIST_HEAD(&ioc->list);
+	list_add_tail(&ioc->list, &mpt3sas_ioc_list);
+	ioc->shost = shost;
+	ioc->id = mpt_ids++;
+	sprintf(ioc->name, "%s%d", MPT3SAS_DRIVER_NAME, ioc->id);
+	ioc->pdev = pdev;
+	ioc->scsi_io_cb_idx = scsi_io_cb_idx;
+	ioc->tm_cb_idx = tm_cb_idx;
+	ioc->ctl_cb_idx = ctl_cb_idx;
+	ioc->base_cb_idx = base_cb_idx;
+	ioc->port_enable_cb_idx = port_enable_cb_idx;
+	ioc->transport_cb_idx = transport_cb_idx;
+	ioc->scsih_cb_idx = scsih_cb_idx;
+	ioc->config_cb_idx = config_cb_idx;
+	ioc->tm_tr_cb_idx = tm_tr_cb_idx;
+	ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
+	ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
+	ioc->logging_level = logging_level;
+	ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
+	/* misc semaphores and spin locks */
+	mutex_init(&ioc->reset_in_progress_mutex);
+	spin_lock_init(&ioc->ioc_reset_in_progress_lock);
+	spin_lock_init(&ioc->scsi_lookup_lock);
+	spin_lock_init(&ioc->sas_device_lock);
+	spin_lock_init(&ioc->sas_node_lock);
+	spin_lock_init(&ioc->fw_event_lock);
+	spin_lock_init(&ioc->raid_device_lock);
+	spin_lock_init(&ioc->diag_trigger_lock);
+
+	INIT_LIST_HEAD(&ioc->sas_device_list);
+	INIT_LIST_HEAD(&ioc->sas_device_init_list);
+	INIT_LIST_HEAD(&ioc->sas_expander_list);
+	INIT_LIST_HEAD(&ioc->fw_event_list);
+	INIT_LIST_HEAD(&ioc->raid_device_list);
+	INIT_LIST_HEAD(&ioc->sas_hba.sas_port_list);
+	INIT_LIST_HEAD(&ioc->delayed_tr_list);
+	INIT_LIST_HEAD(&ioc->delayed_tr_volume_list);
+
+	/* init shost parameters */
+	shost->max_cmd_len = 32;
+	shost->max_lun = max_lun;
+	shost->transportt = mpt3sas_transport_template;
+	shost->unique_id = ioc->id;
+
+	if (max_sectors != 0xFFFF) {
+		if (max_sectors < 64) {
+			shost->max_sectors = 64;
+			pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
+			    "for max_sectors, range is 64 to 32767. Assigning "
+			    "value of 64.\n", ioc->name, max_sectors);
+		} else if (max_sectors > 32767) {
+			shost->max_sectors = 32767;
+			pr_warn(MPT3SAS_FMT "Invalid value %d passed " \
+			    "for max_sectors, range is 64 to 32767. Assigning "
+			    "default value of 32767.\n", ioc->name,
+			    max_sectors);
+		} else {
+			shost->max_sectors = max_sectors & 0xFFFE;
+			pr_info(MPT3SAS_FMT
+				"The max_sectors value is set to %d\n",
+				ioc->name, shost->max_sectors);
+		}
+	}
+
+	if ((scsi_add_host(shost, &pdev->dev))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		list_del(&ioc->list);
+		goto out_add_shost_fail;
+	}
+
+	/* register EEDP capabilities with SCSI layer */
+	if (prot_mask > 0)
+		scsi_host_set_prot(shost, prot_mask);
+	else
+		scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
+				   | SHOST_DIF_TYPE2_PROTECTION
+				   | SHOST_DIF_TYPE3_PROTECTION);
+
+	scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
+
+	/* event thread */
+	snprintf(ioc->firmware_event_name, sizeof(ioc->firmware_event_name),
+	    "fw_event%d", ioc->id);
+	ioc->firmware_event_thread = create_singlethread_workqueue(
+	    ioc->firmware_event_name);
+	if (!ioc->firmware_event_thread) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out_thread_fail;
+	}
+
+	ioc->is_driver_loading = 1;
+	if ((mpt3sas_base_attach(ioc))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out_attach_fail;
+	}
+	scsi_scan_host(shost);
+	return 0;
+
+ out_attach_fail:
+	destroy_workqueue(ioc->firmware_event_thread);
+ out_thread_fail:
+	list_del(&ioc->list);
+	scsi_remove_host(shost);
+ out_add_shost_fail:
+	scsi_host_put(shost);
+	return -ENODEV;
+}
+
+#ifdef CONFIG_PM
+/**
+ * _scsih_suspend - power management suspend main entry point
+ * @pdev: PCI device struct
+ * @state: PM state change to (usually PCI_D3)
+ *
+ * Returns 0 success, anything else error.
+ */
+static int
+_scsih_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	pci_power_t device_state;
+
+	mpt3sas_base_stop_watchdog(ioc);
+	flush_scheduled_work();
+	scsi_block_requests(shost);
+	device_state = pci_choose_state(pdev, state);
+	pr_info(MPT3SAS_FMT
+		"pdev=0x%p, slot=%s, entering operating state [D%d]\n",
+		ioc->name, pdev, pci_name(pdev), device_state);
+
+	pci_save_state(pdev);
+	mpt3sas_base_free_resources(ioc);
+	pci_set_power_state(pdev, device_state);
+	return 0;
+}
+
+/**
+ * _scsih_resume - power management resume main entry point
+ * @pdev: PCI device struct
+ *
+ * Returns 0 success, anything else error.
+ */
+static int
+_scsih_resume(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	pci_power_t device_state = pdev->current_state;
+	int r;
+
+	pr_info(MPT3SAS_FMT
+		"pdev=0x%p, slot=%s, previous operating state [D%d]\n",
+		ioc->name, pdev, pci_name(pdev), device_state);
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_enable_wake(pdev, PCI_D0, 0);
+	pci_restore_state(pdev);
+	ioc->pdev = pdev;
+	r = mpt3sas_base_map_resources(ioc);
+	if (r)
+		return r;
+
+	mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP, SOFT_RESET);
+	scsi_unblock_requests(shost);
+	mpt3sas_base_start_watchdog(ioc);
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+/**
+ * _scsih_pci_error_detected - Called when a PCI error is detected.
+ * @pdev: PCI device struct
+ * @state: PCI channel state
+ *
+ * Description: Called when a PCI error is detected.
+ *
+ * Return value:
+ *      PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
+ */
+static pci_ers_result_t
+_scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	pr_info(MPT3SAS_FMT "PCI error: detected callback, state(%d)!!\n",
+	    ioc->name, state);
+
+	switch (state) {
+	case pci_channel_io_normal:
+		return PCI_ERS_RESULT_CAN_RECOVER;
+	case pci_channel_io_frozen:
+		/* Fatal error, prepare for slot reset */
+		ioc->pci_error_recovery = 1;
+		scsi_block_requests(ioc->shost);
+		mpt3sas_base_stop_watchdog(ioc);
+		mpt3sas_base_free_resources(ioc);
+		return PCI_ERS_RESULT_NEED_RESET;
+	case pci_channel_io_perm_failure:
+		/* Permanent error, prepare for device removal */
+		ioc->pci_error_recovery = 1;
+		mpt3sas_base_stop_watchdog(ioc);
+		_scsih_flush_running_cmds(ioc);
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * _scsih_pci_slot_reset - Called when PCI slot has been reset.
+ * @pdev: PCI device struct
+ *
+ * Description: This routine is called by the pci error recovery
+ * code after the PCI slot has been reset, just before we
+ * should resume normal operations.
+ */
+static pci_ers_result_t
+_scsih_pci_slot_reset(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	int rc;
+
+	pr_info(MPT3SAS_FMT "PCI error: slot reset callback!!\n",
+	     ioc->name);
+
+	ioc->pci_error_recovery = 0;
+	ioc->pdev = pdev;
+	pci_restore_state(pdev);
+	rc = mpt3sas_base_map_resources(ioc);
+	if (rc)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	rc = mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+	    FORCE_BIG_HAMMER);
+
+	pr_warn(MPT3SAS_FMT "hard reset: %s\n", ioc->name,
+	    (rc == 0) ? "success" : "failed");
+
+	if (!rc)
+		return PCI_ERS_RESULT_RECOVERED;
+	else
+		return PCI_ERS_RESULT_DISCONNECT;
+}
+
+/**
+ * _scsih_pci_resume() - resume normal ops after PCI reset
+ * @pdev: pointer to PCI device
+ *
+ * Called when the error recovery driver tells us that its
+ * OK to resume normal operation. Use completion to allow
+ * halted scsi ops to resume.
+ */
+static void
+_scsih_pci_resume(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	pr_info(MPT3SAS_FMT "PCI error: resume callback!!\n", ioc->name);
+
+	pci_cleanup_aer_uncorrect_error_status(pdev);
+	mpt3sas_base_start_watchdog(ioc);
+	scsi_unblock_requests(ioc->shost);
+}
+
+/**
+ * _scsih_pci_mmio_enabled - Enable MMIO and dump debug registers
+ * @pdev: pointer to PCI device
+ */
+static pci_ers_result_t
+_scsih_pci_mmio_enabled(struct pci_dev *pdev)
+{
+	struct Scsi_Host *shost = pci_get_drvdata(pdev);
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+
+	pr_info(MPT3SAS_FMT "PCI error: mmio enabled callback!!\n",
+	    ioc->name);
+
+	/* TODO - dump whatever for debugging purposes */
+
+	/* Request a slot reset. */
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/* raid transport support */
+static struct raid_function_template mpt3sas_raid_functions = {
+	.cookie		= &scsih_driver_template,
+	.is_raid	= _scsih_is_raid,
+	.get_resync	= _scsih_get_resync,
+	.get_state	= _scsih_get_state,
+};
+
+static struct pci_error_handlers _scsih_err_handler = {
+	.error_detected = _scsih_pci_error_detected,
+	.mmio_enabled = _scsih_pci_mmio_enabled,
+	.slot_reset =	_scsih_pci_slot_reset,
+	.resume =	_scsih_pci_resume,
+};
+
+static struct pci_driver scsih_driver = {
+	.name		= MPT3SAS_DRIVER_NAME,
+	.id_table	= scsih_pci_table,
+	.probe		= _scsih_probe,
+	.remove		= __devexit_p(_scsih_remove),
+	.shutdown	= _scsih_shutdown,
+	.err_handler	= &_scsih_err_handler,
+#ifdef CONFIG_PM
+	.suspend	= _scsih_suspend,
+	.resume		= _scsih_resume,
+#endif
+};
+
+
+/**
+ * _scsih_init - main entry point for this driver.
+ *
+ * Returns 0 success, anything else error.
+ */
+static int __init
+_scsih_init(void)
+{
+	int error;
+
+	mpt_ids = 0;
+
+	pr_info("%s version %s loaded\n", MPT3SAS_DRIVER_NAME,
+	    MPT3SAS_DRIVER_VERSION);
+
+	mpt3sas_transport_template =
+	    sas_attach_transport(&mpt3sas_transport_functions);
+	if (!mpt3sas_transport_template)
+		return -ENODEV;
+
+/* raid transport support */
+	mpt3sas_raid_template = raid_class_attach(&mpt3sas_raid_functions);
+	if (!mpt3sas_raid_template) {
+		sas_release_transport(mpt3sas_transport_template);
+		return -ENODEV;
+	}
+
+	mpt3sas_base_initialize_callback_handler();
+
+	 /* queuecommand callback hander */
+	scsi_io_cb_idx = mpt3sas_base_register_callback_handler(_scsih_io_done);
+
+	/* task managment callback handler */
+	tm_cb_idx = mpt3sas_base_register_callback_handler(_scsih_tm_done);
+
+	/* base internal commands callback handler */
+	base_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_base_done);
+	port_enable_cb_idx = mpt3sas_base_register_callback_handler(
+	    mpt3sas_port_enable_done);
+
+	/* transport internal commands callback handler */
+	transport_cb_idx = mpt3sas_base_register_callback_handler(
+	    mpt3sas_transport_done);
+
+	/* scsih internal commands callback handler */
+	scsih_cb_idx = mpt3sas_base_register_callback_handler(_scsih_done);
+
+	/* configuration page API internal commands callback handler */
+	config_cb_idx = mpt3sas_base_register_callback_handler(
+	    mpt3sas_config_done);
+
+	/* ctl module callback handler */
+	ctl_cb_idx = mpt3sas_base_register_callback_handler(mpt3sas_ctl_done);
+
+	tm_tr_cb_idx = mpt3sas_base_register_callback_handler(
+	    _scsih_tm_tr_complete);
+
+	tm_tr_volume_cb_idx = mpt3sas_base_register_callback_handler(
+	    _scsih_tm_volume_tr_complete);
+
+	tm_sas_control_cb_idx = mpt3sas_base_register_callback_handler(
+	    _scsih_sas_control_complete);
+
+	mpt3sas_ctl_init();
+
+	error = pci_register_driver(&scsih_driver);
+	if (error) {
+		/* raid transport support */
+		raid_class_release(mpt3sas_raid_template);
+		sas_release_transport(mpt3sas_transport_template);
+	}
+
+	return error;
+}
+
+/**
+ * _scsih_exit - exit point for this driver (when it is a module).
+ *
+ * Returns 0 success, anything else error.
+ */
+static void __exit
+_scsih_exit(void)
+{
+	pr_info("mpt3sas version %s unloading\n",
+	    MPT3SAS_DRIVER_VERSION);
+
+	mpt3sas_ctl_exit();
+
+	pci_unregister_driver(&scsih_driver);
+
+
+	mpt3sas_base_release_callback_handler(scsi_io_cb_idx);
+	mpt3sas_base_release_callback_handler(tm_cb_idx);
+	mpt3sas_base_release_callback_handler(base_cb_idx);
+	mpt3sas_base_release_callback_handler(port_enable_cb_idx);
+	mpt3sas_base_release_callback_handler(transport_cb_idx);
+	mpt3sas_base_release_callback_handler(scsih_cb_idx);
+	mpt3sas_base_release_callback_handler(config_cb_idx);
+	mpt3sas_base_release_callback_handler(ctl_cb_idx);
+
+	mpt3sas_base_release_callback_handler(tm_tr_cb_idx);
+	mpt3sas_base_release_callback_handler(tm_tr_volume_cb_idx);
+	mpt3sas_base_release_callback_handler(tm_sas_control_cb_idx);
+
+/* raid transport support */
+	raid_class_release(mpt3sas_raid_template);
+	sas_release_transport(mpt3sas_transport_template);
+}
+
+module_init(_scsih_init);
+module_exit(_scsih_exit);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c
new file mode 100644
index 000000000000..87ca2b7287c3
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c
@@ -0,0 +1,2128 @@
+/*
+ * SAS Transport Layer for MPT (Message Passing Technology) based controllers
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_transport.c
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_sas.h>
+#include <scsi/scsi_dbg.h>
+
+#include "mpt3sas_base.h"
+
+/**
+ * _transport_sas_node_find_by_sas_address - sas node search
+ * @ioc: per adapter object
+ * @sas_address: sas address of expander or sas host
+ * Context: Calling function should acquire ioc->sas_node_lock.
+ *
+ * Search for either hba phys or expander device based on handle, then returns
+ * the sas_node object.
+ */
+static struct _sas_node *
+_transport_sas_node_find_by_sas_address(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address)
+{
+	if (ioc->sas_hba.sas_address == sas_address)
+		return &ioc->sas_hba;
+	else
+		return mpt3sas_scsih_expander_find_by_sas_address(ioc,
+		    sas_address);
+}
+
+/**
+ * _transport_convert_phy_link_rate -
+ * @link_rate: link rate returned from mpt firmware
+ *
+ * Convert link_rate from mpi fusion into sas_transport form.
+ */
+static enum sas_linkrate
+_transport_convert_phy_link_rate(u8 link_rate)
+{
+	enum sas_linkrate rc;
+
+	switch (link_rate) {
+	case MPI2_SAS_NEG_LINK_RATE_1_5:
+		rc = SAS_LINK_RATE_1_5_GBPS;
+		break;
+	case MPI2_SAS_NEG_LINK_RATE_3_0:
+		rc = SAS_LINK_RATE_3_0_GBPS;
+		break;
+	case MPI2_SAS_NEG_LINK_RATE_6_0:
+		rc = SAS_LINK_RATE_6_0_GBPS;
+		break;
+	case MPI25_SAS_NEG_LINK_RATE_12_0:
+		rc = SAS_LINK_RATE_12_0_GBPS;
+		break;
+	case MPI2_SAS_NEG_LINK_RATE_PHY_DISABLED:
+		rc = SAS_PHY_DISABLED;
+		break;
+	case MPI2_SAS_NEG_LINK_RATE_NEGOTIATION_FAILED:
+		rc = SAS_LINK_RATE_FAILED;
+		break;
+	case MPI2_SAS_NEG_LINK_RATE_PORT_SELECTOR:
+		rc = SAS_SATA_PORT_SELECTOR;
+		break;
+	case MPI2_SAS_NEG_LINK_RATE_SMP_RESET_IN_PROGRESS:
+		rc = SAS_PHY_RESET_IN_PROGRESS;
+		break;
+
+	default:
+	case MPI2_SAS_NEG_LINK_RATE_SATA_OOB_COMPLETE:
+	case MPI2_SAS_NEG_LINK_RATE_UNKNOWN_LINK_RATE:
+		rc = SAS_LINK_RATE_UNKNOWN;
+		break;
+	}
+	return rc;
+}
+
+/**
+ * _transport_set_identify - set identify for phys and end devices
+ * @ioc: per adapter object
+ * @handle: device handle
+ * @identify: sas identify info
+ *
+ * Populates sas identify info.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_transport_set_identify(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	struct sas_identify *identify)
+{
+	Mpi2SasDevicePage0_t sas_device_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u32 device_info;
+	u32 ioc_status;
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery) {
+		pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
+		    __func__, ioc->name);
+		return -EFAULT;
+	}
+
+	if ((mpt3sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0,
+	    MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -ENXIO;
+	}
+
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT
+			"handle(0x%04x), ioc_status(0x%04x)\nfailure at %s:%d/%s()!\n",
+			ioc->name, handle, ioc_status,
+		     __FILE__, __LINE__, __func__);
+		return -EIO;
+	}
+
+	memset(identify, 0, sizeof(struct sas_identify));
+	device_info = le32_to_cpu(sas_device_pg0.DeviceInfo);
+
+	/* sas_address */
+	identify->sas_address = le64_to_cpu(sas_device_pg0.SASAddress);
+
+	/* phy number of the parent device this device is linked to */
+	identify->phy_identifier = sas_device_pg0.PhyNum;
+
+	/* device_type */
+	switch (device_info & MPI2_SAS_DEVICE_INFO_MASK_DEVICE_TYPE) {
+	case MPI2_SAS_DEVICE_INFO_NO_DEVICE:
+		identify->device_type = SAS_PHY_UNUSED;
+		break;
+	case MPI2_SAS_DEVICE_INFO_END_DEVICE:
+		identify->device_type = SAS_END_DEVICE;
+		break;
+	case MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER:
+		identify->device_type = SAS_EDGE_EXPANDER_DEVICE;
+		break;
+	case MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER:
+		identify->device_type = SAS_FANOUT_EXPANDER_DEVICE;
+		break;
+	}
+
+	/* initiator_port_protocols */
+	if (device_info & MPI2_SAS_DEVICE_INFO_SSP_INITIATOR)
+		identify->initiator_port_protocols |= SAS_PROTOCOL_SSP;
+	if (device_info & MPI2_SAS_DEVICE_INFO_STP_INITIATOR)
+		identify->initiator_port_protocols |= SAS_PROTOCOL_STP;
+	if (device_info & MPI2_SAS_DEVICE_INFO_SMP_INITIATOR)
+		identify->initiator_port_protocols |= SAS_PROTOCOL_SMP;
+	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_HOST)
+		identify->initiator_port_protocols |= SAS_PROTOCOL_SATA;
+
+	/* target_port_protocols */
+	if (device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET)
+		identify->target_port_protocols |= SAS_PROTOCOL_SSP;
+	if (device_info & MPI2_SAS_DEVICE_INFO_STP_TARGET)
+		identify->target_port_protocols |= SAS_PROTOCOL_STP;
+	if (device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET)
+		identify->target_port_protocols |= SAS_PROTOCOL_SMP;
+	if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE)
+		identify->target_port_protocols |= SAS_PROTOCOL_SATA;
+
+	return 0;
+}
+
+/**
+ * mpt3sas_transport_done -  internal transport layer callback handler.
+ * @ioc: per adapter object
+ * @smid: system request message index
+ * @msix_index: MSIX table index supplied by the OS
+ * @reply: reply message frame(lower 32bit addr)
+ *
+ * Callback handler when sending internal generated transport cmds.
+ * The callback index passed is `ioc->transport_cb_idx`
+ *
+ * Return 1 meaning mf should be freed from _base_interrupt
+ *        0 means the mf is freed from this function.
+ */
+u8
+mpt3sas_transport_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
+	u32 reply)
+{
+	MPI2DefaultReply_t *mpi_reply;
+
+	mpi_reply =  mpt3sas_base_get_reply_virt_addr(ioc, reply);
+	if (ioc->transport_cmds.status == MPT3_CMD_NOT_USED)
+		return 1;
+	if (ioc->transport_cmds.smid != smid)
+		return 1;
+	ioc->transport_cmds.status |= MPT3_CMD_COMPLETE;
+	if (mpi_reply) {
+		memcpy(ioc->transport_cmds.reply, mpi_reply,
+		    mpi_reply->MsgLength*4);
+		ioc->transport_cmds.status |= MPT3_CMD_REPLY_VALID;
+	}
+	ioc->transport_cmds.status &= ~MPT3_CMD_PENDING;
+	complete(&ioc->transport_cmds.done);
+	return 1;
+}
+
+/* report manufacture request structure */
+struct rep_manu_request {
+	u8 smp_frame_type;
+	u8 function;
+	u8 reserved;
+	u8 request_length;
+};
+
+/* report manufacture reply structure */
+struct rep_manu_reply {
+	u8 smp_frame_type; /* 0x41 */
+	u8 function; /* 0x01 */
+	u8 function_result;
+	u8 response_length;
+	u16 expander_change_count;
+	u8 reserved0[2];
+	u8 sas_format;
+	u8 reserved2[3];
+	u8 vendor_id[SAS_EXPANDER_VENDOR_ID_LEN];
+	u8 product_id[SAS_EXPANDER_PRODUCT_ID_LEN];
+	u8 product_rev[SAS_EXPANDER_PRODUCT_REV_LEN];
+	u8 component_vendor_id[SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN];
+	u16 component_id;
+	u8 component_revision_id;
+	u8 reserved3;
+	u8 vendor_specific[8];
+};
+
+/**
+ * transport_expander_report_manufacture - obtain SMP report_manufacture
+ * @ioc: per adapter object
+ * @sas_address: expander sas address
+ * @edev: the sas_expander_device object
+ *
+ * Fills in the sas_expander_device object when SMP port is created.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address, struct sas_expander_device *edev)
+{
+	Mpi2SmpPassthroughRequest_t *mpi_request;
+	Mpi2SmpPassthroughReply_t *mpi_reply;
+	struct rep_manu_reply *manufacture_reply;
+	struct rep_manu_request *manufacture_request;
+	int rc;
+	u16 smid;
+	u32 ioc_state;
+	unsigned long timeleft;
+	void *psge;
+	u8 issue_reset = 0;
+	void *data_out = NULL;
+	dma_addr_t data_out_dma;
+	dma_addr_t data_in_dma;
+	size_t data_in_sz;
+	size_t data_out_sz;
+	u16 wait_state_count;
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery) {
+		pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
+		    __func__, ioc->name);
+		return -EFAULT;
+	}
+
+	mutex_lock(&ioc->transport_cmds.mutex);
+
+	if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+	ioc->transport_cmds.status = MPT3_CMD_PENDING;
+
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == 10) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			rc = -EFAULT;
+			goto out;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name, __func__, wait_state_count);
+	}
+	if (wait_state_count)
+		pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
+		    ioc->name, __func__);
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	rc = 0;
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->transport_cmds.smid = smid;
+
+	data_out_sz = sizeof(struct rep_manu_request);
+	data_in_sz = sizeof(struct rep_manu_reply);
+	data_out = pci_alloc_consistent(ioc->pdev, data_out_sz + data_in_sz,
+	    &data_out_dma);
+
+	if (!data_out) {
+		pr_err("failure at %s:%d/%s()!\n", __FILE__,
+		    __LINE__, __func__);
+		rc = -ENOMEM;
+		mpt3sas_base_free_smid(ioc, smid);
+		goto out;
+	}
+
+	data_in_dma = data_out_dma + sizeof(struct rep_manu_request);
+
+	manufacture_request = data_out;
+	manufacture_request->smp_frame_type = 0x40;
+	manufacture_request->function = 1;
+	manufacture_request->reserved = 0;
+	manufacture_request->request_length = 0;
+
+	memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request->PhysicalPort = 0xFF;
+	mpi_request->SASAddress = cpu_to_le64(sas_address);
+	mpi_request->RequestDataLength = cpu_to_le16(data_out_sz);
+	psge = &mpi_request->SGL;
+
+	ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
+	    data_in_sz);
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"report_manufacture - send to sas_addr(0x%016llx)\n",
+		ioc->name, (unsigned long long)sas_address));
+	init_completion(&ioc->transport_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
+	    10*HZ);
+
+	if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2SmpPassthroughRequest_t)/4);
+		if (!(ioc->transport_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"report_manufacture - complete\n", ioc->name));
+
+	if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) {
+		u8 *tmp;
+
+		mpi_reply = ioc->transport_cmds.reply;
+
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "report_manufacture - reply data transfer size(%d)\n",
+		    ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
+
+		if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
+		    sizeof(struct rep_manu_reply))
+			goto out;
+
+		manufacture_reply = data_out + sizeof(struct rep_manu_request);
+		strncpy(edev->vendor_id, manufacture_reply->vendor_id,
+		     SAS_EXPANDER_VENDOR_ID_LEN);
+		strncpy(edev->product_id, manufacture_reply->product_id,
+		     SAS_EXPANDER_PRODUCT_ID_LEN);
+		strncpy(edev->product_rev, manufacture_reply->product_rev,
+		     SAS_EXPANDER_PRODUCT_REV_LEN);
+		edev->level = manufacture_reply->sas_format & 1;
+		if (edev->level) {
+			strncpy(edev->component_vendor_id,
+			    manufacture_reply->component_vendor_id,
+			     SAS_EXPANDER_COMPONENT_VENDOR_ID_LEN);
+			tmp = (u8 *)&manufacture_reply->component_id;
+			edev->component_id = tmp[0] << 8 | tmp[1];
+			edev->component_revision_id =
+			    manufacture_reply->component_revision_id;
+		}
+	} else
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "report_manufacture - no reply\n", ioc->name));
+
+ issue_host_reset:
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+ out:
+	ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
+	if (data_out)
+		pci_free_consistent(ioc->pdev, data_out_sz + data_in_sz,
+		    data_out, data_out_dma);
+
+	mutex_unlock(&ioc->transport_cmds.mutex);
+	return rc;
+}
+
+
+/**
+ * _transport_delete_port - helper function to removing a port
+ * @ioc: per adapter object
+ * @mpt3sas_port: mpt3sas per port object
+ *
+ * Returns nothing.
+ */
+static void
+_transport_delete_port(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_port *mpt3sas_port)
+{
+	u64 sas_address = mpt3sas_port->remote_identify.sas_address;
+	enum sas_device_type device_type =
+	    mpt3sas_port->remote_identify.device_type;
+
+	dev_printk(KERN_INFO, &mpt3sas_port->port->dev,
+	    "remove: sas_addr(0x%016llx)\n",
+	    (unsigned long long) sas_address);
+
+	ioc->logging_level |= MPT_DEBUG_TRANSPORT;
+	if (device_type == SAS_END_DEVICE)
+		mpt3sas_device_remove_by_sas_address(ioc, sas_address);
+	else if (device_type == SAS_EDGE_EXPANDER_DEVICE ||
+	    device_type == SAS_FANOUT_EXPANDER_DEVICE)
+		mpt3sas_expander_remove(ioc, sas_address);
+	ioc->logging_level &= ~MPT_DEBUG_TRANSPORT;
+}
+
+/**
+ * _transport_delete_phy - helper function to removing single phy from port
+ * @ioc: per adapter object
+ * @mpt3sas_port: mpt3sas per port object
+ * @mpt3sas_phy: mpt3sas per phy object
+ *
+ * Returns nothing.
+ */
+static void
+_transport_delete_phy(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_port *mpt3sas_port, struct _sas_phy *mpt3sas_phy)
+{
+	u64 sas_address = mpt3sas_port->remote_identify.sas_address;
+
+	dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev,
+	    "remove: sas_addr(0x%016llx), phy(%d)\n",
+	    (unsigned long long) sas_address, mpt3sas_phy->phy_id);
+
+	list_del(&mpt3sas_phy->port_siblings);
+	mpt3sas_port->num_phys--;
+	sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy);
+	mpt3sas_phy->phy_belongs_to_port = 0;
+}
+
+/**
+ * _transport_add_phy - helper function to adding single phy to port
+ * @ioc: per adapter object
+ * @mpt3sas_port: mpt3sas per port object
+ * @mpt3sas_phy: mpt3sas per phy object
+ *
+ * Returns nothing.
+ */
+static void
+_transport_add_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_port *mpt3sas_port,
+	struct _sas_phy *mpt3sas_phy)
+{
+	u64 sas_address = mpt3sas_port->remote_identify.sas_address;
+
+	dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev,
+	    "add: sas_addr(0x%016llx), phy(%d)\n", (unsigned long long)
+	    sas_address, mpt3sas_phy->phy_id);
+
+	list_add_tail(&mpt3sas_phy->port_siblings, &mpt3sas_port->phy_list);
+	mpt3sas_port->num_phys++;
+	sas_port_add_phy(mpt3sas_port->port, mpt3sas_phy->phy);
+	mpt3sas_phy->phy_belongs_to_port = 1;
+}
+
+/**
+ * _transport_add_phy_to_an_existing_port - adding new phy to existing port
+ * @ioc: per adapter object
+ * @sas_node: sas node object (either expander or sas host)
+ * @mpt3sas_phy: mpt3sas per phy object
+ * @sas_address: sas address of device/expander were phy needs to be added to
+ *
+ * Returns nothing.
+ */
+static void
+_transport_add_phy_to_an_existing_port(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy,
+	u64 sas_address)
+{
+	struct _sas_port *mpt3sas_port;
+	struct _sas_phy *phy_srch;
+
+	if (mpt3sas_phy->phy_belongs_to_port == 1)
+		return;
+
+	list_for_each_entry(mpt3sas_port, &sas_node->sas_port_list,
+	    port_list) {
+		if (mpt3sas_port->remote_identify.sas_address !=
+		    sas_address)
+			continue;
+		list_for_each_entry(phy_srch, &mpt3sas_port->phy_list,
+		    port_siblings) {
+			if (phy_srch == mpt3sas_phy)
+				return;
+		}
+		_transport_add_phy(ioc, mpt3sas_port, mpt3sas_phy);
+			return;
+	}
+
+}
+
+/**
+ * _transport_del_phy_from_an_existing_port - delete phy from existing port
+ * @ioc: per adapter object
+ * @sas_node: sas node object (either expander or sas host)
+ * @mpt3sas_phy: mpt3sas per phy object
+ *
+ * Returns nothing.
+ */
+static void
+_transport_del_phy_from_an_existing_port(struct MPT3SAS_ADAPTER *ioc,
+	struct _sas_node *sas_node, struct _sas_phy *mpt3sas_phy)
+{
+	struct _sas_port *mpt3sas_port, *next;
+	struct _sas_phy *phy_srch;
+
+	if (mpt3sas_phy->phy_belongs_to_port == 0)
+		return;
+
+	list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list,
+	    port_list) {
+		list_for_each_entry(phy_srch, &mpt3sas_port->phy_list,
+		    port_siblings) {
+			if (phy_srch != mpt3sas_phy)
+				continue;
+
+			if (mpt3sas_port->num_phys == 1)
+				_transport_delete_port(ioc, mpt3sas_port);
+			else
+				_transport_delete_phy(ioc, mpt3sas_port,
+				    mpt3sas_phy);
+			return;
+		}
+	}
+}
+
+/**
+ * _transport_sanity_check - sanity check when adding a new port
+ * @ioc: per adapter object
+ * @sas_node: sas node object (either expander or sas host)
+ * @sas_address: sas address of device being added
+ *
+ * See the explanation above from _transport_delete_duplicate_port
+ */
+static void
+_transport_sanity_check(struct MPT3SAS_ADAPTER *ioc, struct _sas_node *sas_node,
+	u64 sas_address)
+{
+	int i;
+
+	for (i = 0; i < sas_node->num_phys; i++) {
+		if (sas_node->phy[i].remote_identify.sas_address != sas_address)
+			continue;
+		if (sas_node->phy[i].phy_belongs_to_port == 1)
+			_transport_del_phy_from_an_existing_port(ioc, sas_node,
+			    &sas_node->phy[i]);
+	}
+}
+
+/**
+ * mpt3sas_transport_port_add - insert port to the list
+ * @ioc: per adapter object
+ * @handle: handle of attached device
+ * @sas_address: sas address of parent expander or sas host
+ * Context: This function will acquire ioc->sas_node_lock.
+ *
+ * Adding new port object to the sas_node->sas_port_list.
+ *
+ * Returns mpt3sas_port.
+ */
+struct _sas_port *
+mpt3sas_transport_port_add(struct MPT3SAS_ADAPTER *ioc, u16 handle,
+	u64 sas_address)
+{
+	struct _sas_phy *mpt3sas_phy, *next;
+	struct _sas_port *mpt3sas_port;
+	unsigned long flags;
+	struct _sas_node *sas_node;
+	struct sas_rphy *rphy;
+	int i;
+	struct sas_port *port;
+
+	mpt3sas_port = kzalloc(sizeof(struct _sas_port),
+	    GFP_KERNEL);
+	if (!mpt3sas_port) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return NULL;
+	}
+
+	INIT_LIST_HEAD(&mpt3sas_port->port_list);
+	INIT_LIST_HEAD(&mpt3sas_port->phy_list);
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	if (!sas_node) {
+		pr_err(MPT3SAS_FMT
+			"%s: Could not find parent sas_address(0x%016llx)!\n",
+			ioc->name, __func__, (unsigned long long)sas_address);
+		goto out_fail;
+	}
+
+	if ((_transport_set_identify(ioc, handle,
+	    &mpt3sas_port->remote_identify))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	if (mpt3sas_port->remote_identify.device_type == SAS_PHY_UNUSED) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	_transport_sanity_check(ioc, sas_node,
+	    mpt3sas_port->remote_identify.sas_address);
+
+	for (i = 0; i < sas_node->num_phys; i++) {
+		if (sas_node->phy[i].remote_identify.sas_address !=
+		    mpt3sas_port->remote_identify.sas_address)
+			continue;
+		list_add_tail(&sas_node->phy[i].port_siblings,
+		    &mpt3sas_port->phy_list);
+		mpt3sas_port->num_phys++;
+	}
+
+	if (!mpt3sas_port->num_phys) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	port = sas_port_alloc_num(sas_node->parent_dev);
+	if ((sas_port_add(port))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		goto out_fail;
+	}
+
+	list_for_each_entry(mpt3sas_phy, &mpt3sas_port->phy_list,
+	    port_siblings) {
+		if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
+			dev_printk(KERN_INFO, &port->dev,
+				"add: handle(0x%04x), sas_addr(0x%016llx), phy(%d)\n",
+				handle, (unsigned long long)
+			    mpt3sas_port->remote_identify.sas_address,
+			    mpt3sas_phy->phy_id);
+		sas_port_add_phy(port, mpt3sas_phy->phy);
+		mpt3sas_phy->phy_belongs_to_port = 1;
+	}
+
+	mpt3sas_port->port = port;
+	if (mpt3sas_port->remote_identify.device_type == SAS_END_DEVICE)
+		rphy = sas_end_device_alloc(port);
+	else
+		rphy = sas_expander_alloc(port,
+		    mpt3sas_port->remote_identify.device_type);
+
+	rphy->identify = mpt3sas_port->remote_identify;
+	if ((sas_rphy_add(rphy))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+	}
+	if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
+		dev_printk(KERN_INFO, &rphy->dev,
+			"add: handle(0x%04x), sas_addr(0x%016llx)\n",
+			handle, (unsigned long long)
+		    mpt3sas_port->remote_identify.sas_address);
+	mpt3sas_port->rphy = rphy;
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	list_add_tail(&mpt3sas_port->port_list, &sas_node->sas_port_list);
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	/* fill in report manufacture */
+	if (mpt3sas_port->remote_identify.device_type ==
+	    MPI2_SAS_DEVICE_INFO_EDGE_EXPANDER ||
+	    mpt3sas_port->remote_identify.device_type ==
+	    MPI2_SAS_DEVICE_INFO_FANOUT_EXPANDER)
+		_transport_expander_report_manufacture(ioc,
+		    mpt3sas_port->remote_identify.sas_address,
+		    rphy_to_expander_device(rphy));
+	return mpt3sas_port;
+
+ out_fail:
+	list_for_each_entry_safe(mpt3sas_phy, next, &mpt3sas_port->phy_list,
+	    port_siblings)
+		list_del(&mpt3sas_phy->port_siblings);
+	kfree(mpt3sas_port);
+	return NULL;
+}
+
+/**
+ * mpt3sas_transport_port_remove - remove port from the list
+ * @ioc: per adapter object
+ * @sas_address: sas address of attached device
+ * @sas_address_parent: sas address of parent expander or sas host
+ * Context: This function will acquire ioc->sas_node_lock.
+ *
+ * Removing object and freeing associated memory from the
+ * ioc->sas_port_list.
+ *
+ * Return nothing.
+ */
+void
+mpt3sas_transport_port_remove(struct MPT3SAS_ADAPTER *ioc, u64 sas_address,
+	u64 sas_address_parent)
+{
+	int i;
+	unsigned long flags;
+	struct _sas_port *mpt3sas_port, *next;
+	struct _sas_node *sas_node;
+	u8 found = 0;
+	struct _sas_phy *mpt3sas_phy, *next_phy;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	sas_node = _transport_sas_node_find_by_sas_address(ioc,
+	    sas_address_parent);
+	if (!sas_node) {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return;
+	}
+	list_for_each_entry_safe(mpt3sas_port, next, &sas_node->sas_port_list,
+	    port_list) {
+		if (mpt3sas_port->remote_identify.sas_address != sas_address)
+			continue;
+		found = 1;
+		list_del(&mpt3sas_port->port_list);
+		goto out;
+	}
+ out:
+	if (!found) {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return;
+	}
+
+	for (i = 0; i < sas_node->num_phys; i++) {
+		if (sas_node->phy[i].remote_identify.sas_address == sas_address)
+			memset(&sas_node->phy[i].remote_identify, 0 ,
+			    sizeof(struct sas_identify));
+	}
+
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	list_for_each_entry_safe(mpt3sas_phy, next_phy,
+	    &mpt3sas_port->phy_list, port_siblings) {
+		if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
+			dev_printk(KERN_INFO, &mpt3sas_port->port->dev,
+			    "remove: sas_addr(0x%016llx), phy(%d)\n",
+			    (unsigned long long)
+			    mpt3sas_port->remote_identify.sas_address,
+			    mpt3sas_phy->phy_id);
+		mpt3sas_phy->phy_belongs_to_port = 0;
+		sas_port_delete_phy(mpt3sas_port->port, mpt3sas_phy->phy);
+		list_del(&mpt3sas_phy->port_siblings);
+	}
+	sas_port_delete(mpt3sas_port->port);
+	kfree(mpt3sas_port);
+}
+
+/**
+ * mpt3sas_transport_add_host_phy - report sas_host phy to transport
+ * @ioc: per adapter object
+ * @mpt3sas_phy: mpt3sas per phy object
+ * @phy_pg0: sas phy page 0
+ * @parent_dev: parent device class object
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_transport_add_host_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy
+	*mpt3sas_phy, Mpi2SasPhyPage0_t phy_pg0, struct device *parent_dev)
+{
+	struct sas_phy *phy;
+	int phy_index = mpt3sas_phy->phy_id;
+
+
+	INIT_LIST_HEAD(&mpt3sas_phy->port_siblings);
+	phy = sas_phy_alloc(parent_dev, phy_index);
+	if (!phy) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+	if ((_transport_set_identify(ioc, mpt3sas_phy->handle,
+	    &mpt3sas_phy->identify))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	phy->identify = mpt3sas_phy->identify;
+	mpt3sas_phy->attached_handle = le16_to_cpu(phy_pg0.AttachedDevHandle);
+	if (mpt3sas_phy->attached_handle)
+		_transport_set_identify(ioc, mpt3sas_phy->attached_handle,
+		    &mpt3sas_phy->remote_identify);
+	phy->identify.phy_identifier = mpt3sas_phy->phy_id;
+	phy->negotiated_linkrate = _transport_convert_phy_link_rate(
+	    phy_pg0.NegotiatedLinkRate & MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
+	phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
+	    phy_pg0.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
+	    phy_pg0.HwLinkRate >> 4);
+	phy->minimum_linkrate = _transport_convert_phy_link_rate(
+	    phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate = _transport_convert_phy_link_rate(
+	    phy_pg0.ProgrammedLinkRate >> 4);
+
+	if ((sas_phy_add(phy))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
+		dev_printk(KERN_INFO, &phy->dev,
+		    "add: handle(0x%04x), sas_addr(0x%016llx)\n"
+		    "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
+		    mpt3sas_phy->handle, (unsigned long long)
+		    mpt3sas_phy->identify.sas_address,
+		    mpt3sas_phy->attached_handle,
+		    (unsigned long long)
+		    mpt3sas_phy->remote_identify.sas_address);
+	mpt3sas_phy->phy = phy;
+	return 0;
+}
+
+
+/**
+ * mpt3sas_transport_add_expander_phy - report expander phy to transport
+ * @ioc: per adapter object
+ * @mpt3sas_phy: mpt3sas per phy object
+ * @expander_pg1: expander page 1
+ * @parent_dev: parent device class object
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt3sas_transport_add_expander_phy(struct MPT3SAS_ADAPTER *ioc, struct _sas_phy
+	*mpt3sas_phy, Mpi2ExpanderPage1_t expander_pg1,
+	struct device *parent_dev)
+{
+	struct sas_phy *phy;
+	int phy_index = mpt3sas_phy->phy_id;
+
+	INIT_LIST_HEAD(&mpt3sas_phy->port_siblings);
+	phy = sas_phy_alloc(parent_dev, phy_index);
+	if (!phy) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -1;
+	}
+	if ((_transport_set_identify(ioc, mpt3sas_phy->handle,
+	    &mpt3sas_phy->identify))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	phy->identify = mpt3sas_phy->identify;
+	mpt3sas_phy->attached_handle =
+	    le16_to_cpu(expander_pg1.AttachedDevHandle);
+	if (mpt3sas_phy->attached_handle)
+		_transport_set_identify(ioc, mpt3sas_phy->attached_handle,
+		    &mpt3sas_phy->remote_identify);
+	phy->identify.phy_identifier = mpt3sas_phy->phy_id;
+	phy->negotiated_linkrate = _transport_convert_phy_link_rate(
+	    expander_pg1.NegotiatedLinkRate &
+	    MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
+	phy->minimum_linkrate_hw = _transport_convert_phy_link_rate(
+	    expander_pg1.HwLinkRate & MPI2_SAS_HWRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate_hw = _transport_convert_phy_link_rate(
+	    expander_pg1.HwLinkRate >> 4);
+	phy->minimum_linkrate = _transport_convert_phy_link_rate(
+	    expander_pg1.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
+	phy->maximum_linkrate = _transport_convert_phy_link_rate(
+	    expander_pg1.ProgrammedLinkRate >> 4);
+
+	if ((sas_phy_add(phy))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		sas_phy_free(phy);
+		return -1;
+	}
+	if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
+		dev_printk(KERN_INFO, &phy->dev,
+		    "add: handle(0x%04x), sas_addr(0x%016llx)\n"
+		    "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
+		    mpt3sas_phy->handle, (unsigned long long)
+		    mpt3sas_phy->identify.sas_address,
+		    mpt3sas_phy->attached_handle,
+		    (unsigned long long)
+		    mpt3sas_phy->remote_identify.sas_address);
+	mpt3sas_phy->phy = phy;
+	return 0;
+}
+
+/**
+ * mpt3sas_transport_update_links - refreshing phy link changes
+ * @ioc: per adapter object
+ * @sas_address: sas address of parent expander or sas host
+ * @handle: attached device handle
+ * @phy_numberv: phy number
+ * @link_rate: new link rate
+ *
+ * Returns nothing.
+ */
+void
+mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc,
+	u64 sas_address, u16 handle, u8 phy_number, u8 link_rate)
+{
+	unsigned long flags;
+	struct _sas_node *sas_node;
+	struct _sas_phy *mpt3sas_phy;
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery)
+		return;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	sas_node = _transport_sas_node_find_by_sas_address(ioc, sas_address);
+	if (!sas_node) {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return;
+	}
+
+	mpt3sas_phy = &sas_node->phy[phy_number];
+	mpt3sas_phy->attached_handle = handle;
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+	if (handle && (link_rate >= MPI2_SAS_NEG_LINK_RATE_1_5)) {
+		_transport_set_identify(ioc, handle,
+		    &mpt3sas_phy->remote_identify);
+		_transport_add_phy_to_an_existing_port(ioc, sas_node,
+		    mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address);
+	} else
+		memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct
+		    sas_identify));
+
+	if (mpt3sas_phy->phy)
+		mpt3sas_phy->phy->negotiated_linkrate =
+		    _transport_convert_phy_link_rate(link_rate);
+
+	if ((ioc->logging_level & MPT_DEBUG_TRANSPORT))
+		dev_printk(KERN_INFO, &mpt3sas_phy->phy->dev,
+		    "refresh: parent sas_addr(0x%016llx),\n"
+		    "\tlink_rate(0x%02x), phy(%d)\n"
+		    "\tattached_handle(0x%04x), sas_addr(0x%016llx)\n",
+		    (unsigned long long)sas_address,
+		    link_rate, phy_number, handle, (unsigned long long)
+		    mpt3sas_phy->remote_identify.sas_address);
+}
+
+static inline void *
+phy_to_ioc(struct sas_phy *phy)
+{
+	struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+	return shost_priv(shost);
+}
+
+static inline void *
+rphy_to_ioc(struct sas_rphy *rphy)
+{
+	struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent);
+	return shost_priv(shost);
+}
+
+/* report phy error log structure */
+struct phy_error_log_request {
+	u8 smp_frame_type; /* 0x40 */
+	u8 function; /* 0x11 */
+	u8 allocated_response_length;
+	u8 request_length; /* 02 */
+	u8 reserved_1[5];
+	u8 phy_identifier;
+	u8 reserved_2[2];
+};
+
+/* report phy error log reply structure */
+struct phy_error_log_reply {
+	u8 smp_frame_type; /* 0x41 */
+	u8 function; /* 0x11 */
+	u8 function_result;
+	u8 response_length;
+	__be16 expander_change_count;
+	u8 reserved_1[3];
+	u8 phy_identifier;
+	u8 reserved_2[2];
+	__be32 invalid_dword;
+	__be32 running_disparity_error;
+	__be32 loss_of_dword_sync;
+	__be32 phy_reset_problem;
+};
+
+/**
+ * _transport_get_expander_phy_error_log - return expander counters
+ * @ioc: per adapter object
+ * @phy: The sas phy object
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ */
+static int
+_transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc,
+	struct sas_phy *phy)
+{
+	Mpi2SmpPassthroughRequest_t *mpi_request;
+	Mpi2SmpPassthroughReply_t *mpi_reply;
+	struct phy_error_log_request *phy_error_log_request;
+	struct phy_error_log_reply *phy_error_log_reply;
+	int rc;
+	u16 smid;
+	u32 ioc_state;
+	unsigned long timeleft;
+	void *psge;
+	u8 issue_reset = 0;
+	void *data_out = NULL;
+	dma_addr_t data_out_dma;
+	u32 sz;
+	u16 wait_state_count;
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery) {
+		pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
+		    __func__, ioc->name);
+		return -EFAULT;
+	}
+
+	mutex_lock(&ioc->transport_cmds.mutex);
+
+	if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+	ioc->transport_cmds.status = MPT3_CMD_PENDING;
+
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == 10) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			rc = -EFAULT;
+			goto out;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name, __func__, wait_state_count);
+	}
+	if (wait_state_count)
+		pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
+		    ioc->name, __func__);
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->transport_cmds.smid = smid;
+
+	sz = sizeof(struct phy_error_log_request) +
+	    sizeof(struct phy_error_log_reply);
+	data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
+	if (!data_out) {
+		pr_err("failure at %s:%d/%s()!\n", __FILE__,
+		    __LINE__, __func__);
+		rc = -ENOMEM;
+		mpt3sas_base_free_smid(ioc, smid);
+		goto out;
+	}
+
+	rc = -EINVAL;
+	memset(data_out, 0, sz);
+	phy_error_log_request = data_out;
+	phy_error_log_request->smp_frame_type = 0x40;
+	phy_error_log_request->function = 0x11;
+	phy_error_log_request->request_length = 2;
+	phy_error_log_request->allocated_response_length = 0;
+	phy_error_log_request->phy_identifier = phy->number;
+
+	memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request->PhysicalPort = 0xFF;
+	mpi_request->VF_ID = 0; /* TODO */
+	mpi_request->VP_ID = 0;
+	mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address);
+	mpi_request->RequestDataLength =
+	    cpu_to_le16(sizeof(struct phy_error_log_request));
+	psge = &mpi_request->SGL;
+
+	ioc->build_sg(ioc, psge, data_out_dma,
+		sizeof(struct phy_error_log_request),
+	    data_out_dma + sizeof(struct phy_error_log_request),
+	    sizeof(struct phy_error_log_reply));
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"phy_error_log - send to sas_addr(0x%016llx), phy(%d)\n",
+		ioc->name, (unsigned long long)phy->identify.sas_address,
+		phy->number));
+	init_completion(&ioc->transport_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
+	    10*HZ);
+
+	if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2SmpPassthroughRequest_t)/4);
+		if (!(ioc->transport_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"phy_error_log - complete\n", ioc->name));
+
+	if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) {
+
+		mpi_reply = ioc->transport_cmds.reply;
+
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "phy_error_log - reply data transfer size(%d)\n",
+		    ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
+
+		if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
+		    sizeof(struct phy_error_log_reply))
+			goto out;
+
+		phy_error_log_reply = data_out +
+		    sizeof(struct phy_error_log_request);
+
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "phy_error_log - function_result(%d)\n",
+		    ioc->name, phy_error_log_reply->function_result));
+
+		phy->invalid_dword_count =
+		    be32_to_cpu(phy_error_log_reply->invalid_dword);
+		phy->running_disparity_error_count =
+		    be32_to_cpu(phy_error_log_reply->running_disparity_error);
+		phy->loss_of_dword_sync_count =
+		    be32_to_cpu(phy_error_log_reply->loss_of_dword_sync);
+		phy->phy_reset_problem_count =
+		    be32_to_cpu(phy_error_log_reply->phy_reset_problem);
+		rc = 0;
+	} else
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "phy_error_log - no reply\n", ioc->name));
+
+ issue_host_reset:
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+ out:
+	ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
+	if (data_out)
+		pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
+
+	mutex_unlock(&ioc->transport_cmds.mutex);
+	return rc;
+}
+
+/**
+ * _transport_get_linkerrors - return phy counters for both hba and expanders
+ * @phy: The sas phy object
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ */
+static int
+_transport_get_linkerrors(struct sas_phy *phy)
+{
+	struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
+	unsigned long flags;
+	Mpi2ConfigReply_t mpi_reply;
+	Mpi2SasPhyPage1_t phy_pg1;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	if (_transport_sas_node_find_by_sas_address(ioc,
+	    phy->identify.sas_address) == NULL) {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return -EINVAL;
+	}
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	if (phy->identify.sas_address != ioc->sas_hba.sas_address)
+		return _transport_get_expander_phy_error_log(ioc, phy);
+
+	/* get hba phy error logs */
+	if ((mpt3sas_config_get_phy_pg1(ioc, &mpi_reply, &phy_pg1,
+		    phy->number))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -ENXIO;
+	}
+
+	if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
+		pr_info(MPT3SAS_FMT
+			"phy(%d), ioc_status (0x%04x), loginfo(0x%08x)\n",
+			ioc->name, phy->number,
+			le16_to_cpu(mpi_reply.IOCStatus),
+		    le32_to_cpu(mpi_reply.IOCLogInfo));
+
+	phy->invalid_dword_count = le32_to_cpu(phy_pg1.InvalidDwordCount);
+	phy->running_disparity_error_count =
+	    le32_to_cpu(phy_pg1.RunningDisparityErrorCount);
+	phy->loss_of_dword_sync_count =
+	    le32_to_cpu(phy_pg1.LossDwordSynchCount);
+	phy->phy_reset_problem_count =
+	    le32_to_cpu(phy_pg1.PhyResetProblemCount);
+	return 0;
+}
+
+/**
+ * _transport_get_enclosure_identifier -
+ * @phy: The sas phy object
+ *
+ * Obtain the enclosure logical id for an expander.
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_transport_get_enclosure_identifier(struct sas_rphy *rphy, u64 *identifier)
+{
+	struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
+	struct _sas_device *sas_device;
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	    rphy->identify.sas_address);
+	if (sas_device) {
+		*identifier = sas_device->enclosure_logical_id;
+		rc = 0;
+	} else {
+		*identifier = 0;
+		rc = -ENXIO;
+	}
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	return rc;
+}
+
+/**
+ * _transport_get_bay_identifier -
+ * @phy: The sas phy object
+ *
+ * Returns the slot id for a device that resides inside an enclosure.
+ */
+static int
+_transport_get_bay_identifier(struct sas_rphy *rphy)
+{
+	struct MPT3SAS_ADAPTER *ioc = rphy_to_ioc(rphy);
+	struct _sas_device *sas_device;
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&ioc->sas_device_lock, flags);
+	sas_device = mpt3sas_scsih_sas_device_find_by_sas_address(ioc,
+	    rphy->identify.sas_address);
+	if (sas_device)
+		rc = sas_device->slot;
+	else
+		rc = -ENXIO;
+	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
+	return rc;
+}
+
+/* phy control request structure */
+struct phy_control_request {
+	u8 smp_frame_type; /* 0x40 */
+	u8 function; /* 0x91 */
+	u8 allocated_response_length;
+	u8 request_length; /* 0x09 */
+	u16 expander_change_count;
+	u8 reserved_1[3];
+	u8 phy_identifier;
+	u8 phy_operation;
+	u8 reserved_2[13];
+	u64 attached_device_name;
+	u8 programmed_min_physical_link_rate;
+	u8 programmed_max_physical_link_rate;
+	u8 reserved_3[6];
+};
+
+/* phy control reply structure */
+struct phy_control_reply {
+	u8 smp_frame_type; /* 0x41 */
+	u8 function; /* 0x11 */
+	u8 function_result;
+	u8 response_length;
+};
+
+#define SMP_PHY_CONTROL_LINK_RESET	(0x01)
+#define SMP_PHY_CONTROL_HARD_RESET	(0x02)
+#define SMP_PHY_CONTROL_DISABLE		(0x03)
+
+/**
+ * _transport_expander_phy_control - expander phy control
+ * @ioc: per adapter object
+ * @phy: The sas phy object
+ *
+ * Returns 0 for success, non-zero for failure.
+ *
+ */
+static int
+_transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc,
+	struct sas_phy *phy, u8 phy_operation)
+{
+	Mpi2SmpPassthroughRequest_t *mpi_request;
+	Mpi2SmpPassthroughReply_t *mpi_reply;
+	struct phy_control_request *phy_control_request;
+	struct phy_control_reply *phy_control_reply;
+	int rc;
+	u16 smid;
+	u32 ioc_state;
+	unsigned long timeleft;
+	void *psge;
+	u32 sgl_flags;
+	u8 issue_reset = 0;
+	void *data_out = NULL;
+	dma_addr_t data_out_dma;
+	u32 sz;
+	u16 wait_state_count;
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery) {
+		pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
+		    __func__, ioc->name);
+		return -EFAULT;
+	}
+
+	mutex_lock(&ioc->transport_cmds.mutex);
+
+	if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+	ioc->transport_cmds.status = MPT3_CMD_PENDING;
+
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == 10) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			rc = -EFAULT;
+			goto out;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name, __func__, wait_state_count);
+	}
+	if (wait_state_count)
+		pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
+		    ioc->name, __func__);
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->transport_cmds.smid = smid;
+
+	sz = sizeof(struct phy_control_request) +
+	    sizeof(struct phy_control_reply);
+	data_out = pci_alloc_consistent(ioc->pdev, sz, &data_out_dma);
+	if (!data_out) {
+		pr_err("failure at %s:%d/%s()!\n", __FILE__,
+		    __LINE__, __func__);
+		rc = -ENOMEM;
+		mpt3sas_base_free_smid(ioc, smid);
+		goto out;
+	}
+
+	rc = -EINVAL;
+	memset(data_out, 0, sz);
+	phy_control_request = data_out;
+	phy_control_request->smp_frame_type = 0x40;
+	phy_control_request->function = 0x91;
+	phy_control_request->request_length = 9;
+	phy_control_request->allocated_response_length = 0;
+	phy_control_request->phy_identifier = phy->number;
+	phy_control_request->phy_operation = phy_operation;
+	phy_control_request->programmed_min_physical_link_rate =
+	    phy->minimum_linkrate << 4;
+	phy_control_request->programmed_max_physical_link_rate =
+	    phy->maximum_linkrate << 4;
+
+	memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request->PhysicalPort = 0xFF;
+	mpi_request->VF_ID = 0; /* TODO */
+	mpi_request->VP_ID = 0;
+	mpi_request->SASAddress = cpu_to_le64(phy->identify.sas_address);
+	mpi_request->RequestDataLength =
+	    cpu_to_le16(sizeof(struct phy_error_log_request));
+	psge = &mpi_request->SGL;
+
+	/* WRITE sgel first */
+	sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
+	    MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
+	sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
+	ioc->base_add_sg_single(psge, sgl_flags |
+	    sizeof(struct phy_control_request), data_out_dma);
+
+	/* incr sgel */
+	psge += ioc->sge_size;
+
+	/* READ sgel last */
+	sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
+	    MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
+	    MPI2_SGE_FLAGS_END_OF_LIST);
+	sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
+	ioc->base_add_sg_single(psge, sgl_flags |
+	    sizeof(struct phy_control_reply), data_out_dma +
+	    sizeof(struct phy_control_request));
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"phy_control - send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n",
+		ioc->name, (unsigned long long)phy->identify.sas_address,
+		phy->number, phy_operation));
+	init_completion(&ioc->transport_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
+	    10*HZ);
+
+	if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s: timeout\n",
+		    ioc->name, __func__);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2SmpPassthroughRequest_t)/4);
+		if (!(ioc->transport_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"phy_control - complete\n", ioc->name));
+
+	if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) {
+
+		mpi_reply = ioc->transport_cmds.reply;
+
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "phy_control - reply data transfer size(%d)\n",
+		    ioc->name, le16_to_cpu(mpi_reply->ResponseDataLength)));
+
+		if (le16_to_cpu(mpi_reply->ResponseDataLength) !=
+		    sizeof(struct phy_control_reply))
+			goto out;
+
+		phy_control_reply = data_out +
+		    sizeof(struct phy_control_request);
+
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "phy_control - function_result(%d)\n",
+		    ioc->name, phy_control_reply->function_result));
+
+		rc = 0;
+	} else
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "phy_control - no reply\n", ioc->name));
+
+ issue_host_reset:
+	if (issue_reset)
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+ out:
+	ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
+	if (data_out)
+		pci_free_consistent(ioc->pdev, sz, data_out, data_out_dma);
+
+	mutex_unlock(&ioc->transport_cmds.mutex);
+	return rc;
+}
+
+/**
+ * _transport_phy_reset -
+ * @phy: The sas phy object
+ * @hard_reset:
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_transport_phy_reset(struct sas_phy *phy, int hard_reset)
+{
+	struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
+	Mpi2SasIoUnitControlReply_t mpi_reply;
+	Mpi2SasIoUnitControlRequest_t mpi_request;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	if (_transport_sas_node_find_by_sas_address(ioc,
+	    phy->identify.sas_address) == NULL) {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return -EINVAL;
+	}
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	/* handle expander phys */
+	if (phy->identify.sas_address != ioc->sas_hba.sas_address)
+		return _transport_expander_phy_control(ioc, phy,
+		    (hard_reset == 1) ? SMP_PHY_CONTROL_HARD_RESET :
+		    SMP_PHY_CONTROL_LINK_RESET);
+
+	/* handle hba phys */
+	memset(&mpi_request, 0, sizeof(Mpi2SasIoUnitControlReply_t));
+	mpi_request.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
+	mpi_request.Operation = hard_reset ?
+	    MPI2_SAS_OP_PHY_HARD_RESET : MPI2_SAS_OP_PHY_LINK_RESET;
+	mpi_request.PhyNum = phy->number;
+
+	if ((mpt3sas_base_sas_iounit_control(ioc, &mpi_reply, &mpi_request))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		return -ENXIO;
+	}
+
+	if (mpi_reply.IOCStatus || mpi_reply.IOCLogInfo)
+		pr_info(MPT3SAS_FMT
+		"phy(%d), ioc_status(0x%04x), loginfo(0x%08x)\n",
+		ioc->name, phy->number, le16_to_cpu(mpi_reply.IOCStatus),
+		    le32_to_cpu(mpi_reply.IOCLogInfo));
+
+	return 0;
+}
+
+/**
+ * _transport_phy_enable - enable/disable phys
+ * @phy: The sas phy object
+ * @enable: enable phy when true
+ *
+ * Only support sas_host direct attached phys.
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_transport_phy_enable(struct sas_phy *phy, int enable)
+{
+	struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
+	Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
+	Mpi2SasIOUnitPage0_t *sas_iounit_pg0 = NULL;
+	Mpi2ConfigReply_t mpi_reply;
+	u16 ioc_status;
+	u16 sz;
+	int rc = 0;
+	unsigned long flags;
+	int i, discovery_active;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	if (_transport_sas_node_find_by_sas_address(ioc,
+	    phy->identify.sas_address) == NULL) {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return -EINVAL;
+	}
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	/* handle expander phys */
+	if (phy->identify.sas_address != ioc->sas_hba.sas_address)
+		return _transport_expander_phy_control(ioc, phy,
+		    (enable == 1) ? SMP_PHY_CONTROL_LINK_RESET :
+		    SMP_PHY_CONTROL_DISABLE);
+
+	/* handle hba phys */
+
+	/* read sas_iounit page 0 */
+	sz = offsetof(Mpi2SasIOUnitPage0_t, PhyData) + (ioc->sas_hba.num_phys *
+	    sizeof(Mpi2SasIOUnit0PhyData_t));
+	sas_iounit_pg0 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_iounit_pg0) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -ENOMEM;
+		goto out;
+	}
+	if ((mpt3sas_config_get_sas_iounit_pg0(ioc, &mpi_reply,
+	    sas_iounit_pg0, sz))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -EIO;
+		goto out;
+	}
+
+	/* unable to enable/disable phys when when discovery is active */
+	for (i = 0, discovery_active = 0; i < ioc->sas_hba.num_phys ; i++) {
+		if (sas_iounit_pg0->PhyData[i].PortFlags &
+		    MPI2_SASIOUNIT0_PORTFLAGS_DISCOVERY_IN_PROGRESS) {
+			pr_err(MPT3SAS_FMT "discovery is active on " \
+			    "port = %d, phy = %d: unable to enable/disable "
+			    "phys, try again later!\n", ioc->name,
+			    sas_iounit_pg0->PhyData[i].Port, i);
+			discovery_active = 1;
+		}
+	}
+
+	if (discovery_active) {
+		rc = -EAGAIN;
+		goto out;
+	}
+
+	/* read sas_iounit page 1 */
+	sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
+	    sizeof(Mpi2SasIOUnit1PhyData_t));
+	sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_iounit_pg1) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -ENOMEM;
+		goto out;
+	}
+	if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
+	    sas_iounit_pg1, sz))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -EIO;
+		goto out;
+	}
+
+	/* copy Port/PortFlags/PhyFlags from page 0 */
+	for (i = 0; i < ioc->sas_hba.num_phys ; i++) {
+		sas_iounit_pg1->PhyData[i].Port =
+		    sas_iounit_pg0->PhyData[i].Port;
+		sas_iounit_pg1->PhyData[i].PortFlags =
+		    (sas_iounit_pg0->PhyData[i].PortFlags &
+		    MPI2_SASIOUNIT0_PORTFLAGS_AUTO_PORT_CONFIG);
+		sas_iounit_pg1->PhyData[i].PhyFlags =
+		    (sas_iounit_pg0->PhyData[i].PhyFlags &
+		    (MPI2_SASIOUNIT0_PHYFLAGS_ZONING_ENABLED +
+		    MPI2_SASIOUNIT0_PHYFLAGS_PHY_DISABLED));
+	}
+
+	if (enable)
+		sas_iounit_pg1->PhyData[phy->number].PhyFlags
+		    &= ~MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
+	else
+		sas_iounit_pg1->PhyData[phy->number].PhyFlags
+		    |= MPI2_SASIOUNIT1_PHYFLAGS_PHY_DISABLE;
+
+	mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1, sz);
+
+	/* link reset */
+	if (enable)
+		_transport_phy_reset(phy, 0);
+
+ out:
+	kfree(sas_iounit_pg1);
+	kfree(sas_iounit_pg0);
+	return rc;
+}
+
+/**
+ * _transport_phy_speed - set phy min/max link rates
+ * @phy: The sas phy object
+ * @rates: rates defined in sas_phy_linkrates
+ *
+ * Only support sas_host direct attached phys.
+ * Returns 0 for success, non-zero for failure.
+ */
+static int
+_transport_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates)
+{
+	struct MPT3SAS_ADAPTER *ioc = phy_to_ioc(phy);
+	Mpi2SasIOUnitPage1_t *sas_iounit_pg1 = NULL;
+	Mpi2SasPhyPage0_t phy_pg0;
+	Mpi2ConfigReply_t mpi_reply;
+	u16 ioc_status;
+	u16 sz;
+	int i;
+	int rc = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ioc->sas_node_lock, flags);
+	if (_transport_sas_node_find_by_sas_address(ioc,
+	    phy->identify.sas_address) == NULL) {
+		spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+		return -EINVAL;
+	}
+	spin_unlock_irqrestore(&ioc->sas_node_lock, flags);
+
+	if (!rates->minimum_linkrate)
+		rates->minimum_linkrate = phy->minimum_linkrate;
+	else if (rates->minimum_linkrate < phy->minimum_linkrate_hw)
+		rates->minimum_linkrate = phy->minimum_linkrate_hw;
+
+	if (!rates->maximum_linkrate)
+		rates->maximum_linkrate = phy->maximum_linkrate;
+	else if (rates->maximum_linkrate > phy->maximum_linkrate_hw)
+		rates->maximum_linkrate = phy->maximum_linkrate_hw;
+
+	/* handle expander phys */
+	if (phy->identify.sas_address != ioc->sas_hba.sas_address) {
+		phy->minimum_linkrate = rates->minimum_linkrate;
+		phy->maximum_linkrate = rates->maximum_linkrate;
+		return _transport_expander_phy_control(ioc, phy,
+		    SMP_PHY_CONTROL_LINK_RESET);
+	}
+
+	/* handle hba phys */
+
+	/* sas_iounit page 1 */
+	sz = offsetof(Mpi2SasIOUnitPage1_t, PhyData) + (ioc->sas_hba.num_phys *
+	    sizeof(Mpi2SasIOUnit1PhyData_t));
+	sas_iounit_pg1 = kzalloc(sz, GFP_KERNEL);
+	if (!sas_iounit_pg1) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -ENOMEM;
+		goto out;
+	}
+	if ((mpt3sas_config_get_sas_iounit_pg1(ioc, &mpi_reply,
+	    sas_iounit_pg1, sz))) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) &
+	    MPI2_IOCSTATUS_MASK;
+	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -EIO;
+		goto out;
+	}
+
+	for (i = 0; i < ioc->sas_hba.num_phys; i++) {
+		if (phy->number != i) {
+			sas_iounit_pg1->PhyData[i].MaxMinLinkRate =
+			    (ioc->sas_hba.phy[i].phy->minimum_linkrate +
+			    (ioc->sas_hba.phy[i].phy->maximum_linkrate << 4));
+		} else {
+			sas_iounit_pg1->PhyData[i].MaxMinLinkRate =
+			    (rates->minimum_linkrate +
+			    (rates->maximum_linkrate << 4));
+		}
+	}
+
+	if (mpt3sas_config_set_sas_iounit_pg1(ioc, &mpi_reply, sas_iounit_pg1,
+	    sz)) {
+		pr_err(MPT3SAS_FMT "failure at %s:%d/%s()!\n",
+		    ioc->name, __FILE__, __LINE__, __func__);
+		rc = -ENXIO;
+		goto out;
+	}
+
+	/* link reset */
+	_transport_phy_reset(phy, 0);
+
+	/* read phy page 0, then update the rates in the sas transport phy */
+	if (!mpt3sas_config_get_phy_pg0(ioc, &mpi_reply, &phy_pg0,
+	    phy->number)) {
+		phy->minimum_linkrate = _transport_convert_phy_link_rate(
+		    phy_pg0.ProgrammedLinkRate & MPI2_SAS_PRATE_MIN_RATE_MASK);
+		phy->maximum_linkrate = _transport_convert_phy_link_rate(
+		    phy_pg0.ProgrammedLinkRate >> 4);
+		phy->negotiated_linkrate = _transport_convert_phy_link_rate(
+		    phy_pg0.NegotiatedLinkRate &
+		    MPI2_SAS_NEG_LINK_RATE_MASK_PHYSICAL);
+	}
+
+ out:
+	kfree(sas_iounit_pg1);
+	return rc;
+}
+
+/**
+ * _transport_smp_handler - transport portal for smp passthru
+ * @shost: shost object
+ * @rphy: sas transport rphy object
+ * @req:
+ *
+ * This used primarily for smp_utils.
+ * Example:
+ *           smp_rep_general /sys/class/bsg/expander-5:0
+ */
+static int
+_transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
+	struct request *req)
+{
+	struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+	Mpi2SmpPassthroughRequest_t *mpi_request;
+	Mpi2SmpPassthroughReply_t *mpi_reply;
+	int rc, i;
+	u16 smid;
+	u32 ioc_state;
+	unsigned long timeleft;
+	void *psge;
+	u8 issue_reset = 0;
+	dma_addr_t dma_addr_in = 0;
+	dma_addr_t dma_addr_out = 0;
+	dma_addr_t pci_dma_in = 0;
+	dma_addr_t pci_dma_out = 0;
+	void *pci_addr_in = NULL;
+	void *pci_addr_out = NULL;
+	u16 wait_state_count;
+	struct request *rsp = req->next_rq;
+	struct bio_vec *bvec = NULL;
+
+	if (!rsp) {
+		pr_err(MPT3SAS_FMT "%s: the smp response space is missing\n",
+			ioc->name, __func__);
+		return -EINVAL;
+	}
+
+	if (ioc->shost_recovery || ioc->pci_error_recovery) {
+		pr_info(MPT3SAS_FMT "%s: host reset in progress!\n",
+		    __func__, ioc->name);
+		return -EFAULT;
+	}
+
+	rc = mutex_lock_interruptible(&ioc->transport_cmds.mutex);
+	if (rc)
+		return rc;
+
+	if (ioc->transport_cmds.status != MPT3_CMD_NOT_USED) {
+		pr_err(MPT3SAS_FMT "%s: transport_cmds in use\n", ioc->name,
+		    __func__);
+		rc = -EAGAIN;
+		goto out;
+	}
+	ioc->transport_cmds.status = MPT3_CMD_PENDING;
+
+	/* Check if the request is split across multiple segments */
+	if (req->bio->bi_vcnt > 1) {
+		u32 offset = 0;
+
+		/* Allocate memory and copy the request */
+		pci_addr_out = pci_alloc_consistent(ioc->pdev,
+		    blk_rq_bytes(req), &pci_dma_out);
+		if (!pci_addr_out) {
+			pr_info(MPT3SAS_FMT "%s(): PCI Addr out = NULL\n",
+			    ioc->name, __func__);
+			rc = -ENOMEM;
+			goto out;
+		}
+
+		bio_for_each_segment(bvec, req->bio, i) {
+			memcpy(pci_addr_out + offset,
+			    page_address(bvec->bv_page) + bvec->bv_offset,
+			    bvec->bv_len);
+			offset += bvec->bv_len;
+		}
+	} else {
+		dma_addr_out = pci_map_single(ioc->pdev, bio_data(req->bio),
+		    blk_rq_bytes(req), PCI_DMA_BIDIRECTIONAL);
+		if (!dma_addr_out) {
+			pr_info(MPT3SAS_FMT "%s(): DMA Addr out = NULL\n",
+			    ioc->name, __func__);
+			rc = -ENOMEM;
+			goto free_pci;
+		}
+	}
+
+	/* Check if the response needs to be populated across
+	 * multiple segments */
+	if (rsp->bio->bi_vcnt > 1) {
+		pci_addr_in = pci_alloc_consistent(ioc->pdev, blk_rq_bytes(rsp),
+		    &pci_dma_in);
+		if (!pci_addr_in) {
+			pr_info(MPT3SAS_FMT "%s(): PCI Addr in = NULL\n",
+			    ioc->name, __func__);
+			rc = -ENOMEM;
+			goto unmap;
+		}
+	} else {
+		dma_addr_in =  pci_map_single(ioc->pdev, bio_data(rsp->bio),
+		    blk_rq_bytes(rsp), PCI_DMA_BIDIRECTIONAL);
+		if (!dma_addr_in) {
+			pr_info(MPT3SAS_FMT "%s(): DMA Addr in = NULL\n",
+			    ioc->name, __func__);
+			rc = -ENOMEM;
+			goto unmap;
+		}
+	}
+
+	wait_state_count = 0;
+	ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
+		if (wait_state_count++ == 10) {
+			pr_err(MPT3SAS_FMT
+			    "%s: failed due to ioc not operational\n",
+			    ioc->name, __func__);
+			rc = -EFAULT;
+			goto unmap;
+		}
+		ssleep(1);
+		ioc_state = mpt3sas_base_get_iocstate(ioc, 1);
+		pr_info(MPT3SAS_FMT
+			"%s: waiting for operational state(count=%d)\n",
+			ioc->name, __func__, wait_state_count);
+	}
+	if (wait_state_count)
+		pr_info(MPT3SAS_FMT "%s: ioc is operational\n",
+		    ioc->name, __func__);
+
+	smid = mpt3sas_base_get_smid(ioc, ioc->transport_cb_idx);
+	if (!smid) {
+		pr_err(MPT3SAS_FMT "%s: failed obtaining a smid\n",
+		    ioc->name, __func__);
+		rc = -EAGAIN;
+		goto unmap;
+	}
+
+	rc = 0;
+	mpi_request = mpt3sas_base_get_msg_frame(ioc, smid);
+	ioc->transport_cmds.smid = smid;
+
+	memset(mpi_request, 0, sizeof(Mpi2SmpPassthroughRequest_t));
+	mpi_request->Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
+	mpi_request->PhysicalPort = 0xFF;
+	mpi_request->SASAddress = (rphy) ?
+	    cpu_to_le64(rphy->identify.sas_address) :
+	    cpu_to_le64(ioc->sas_hba.sas_address);
+	mpi_request->RequestDataLength = cpu_to_le16(blk_rq_bytes(req) - 4);
+	psge = &mpi_request->SGL;
+
+	if (req->bio->bi_vcnt > 1)
+		ioc->build_sg(ioc, psge, pci_dma_out, (blk_rq_bytes(req) - 4),
+		    pci_dma_in, (blk_rq_bytes(rsp) + 4));
+	else
+		ioc->build_sg(ioc, psge, dma_addr_out, (blk_rq_bytes(req) - 4),
+		    dma_addr_in, (blk_rq_bytes(rsp) + 4));
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s - sending smp request\n", ioc->name, __func__));
+
+	init_completion(&ioc->transport_cmds.done);
+	mpt3sas_base_put_smid_default(ioc, smid);
+	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
+	    10*HZ);
+
+	if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
+		pr_err(MPT3SAS_FMT "%s : timeout\n",
+		    __func__, ioc->name);
+		_debug_dump_mf(mpi_request,
+		    sizeof(Mpi2SmpPassthroughRequest_t)/4);
+		if (!(ioc->transport_cmds.status & MPT3_CMD_RESET))
+			issue_reset = 1;
+		goto issue_host_reset;
+	}
+
+	dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		"%s - complete\n", ioc->name, __func__));
+
+	if (ioc->transport_cmds.status & MPT3_CMD_REPLY_VALID) {
+
+		mpi_reply = ioc->transport_cmds.reply;
+
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "%s - reply data transfer size(%d)\n",
+		    ioc->name, __func__,
+		    le16_to_cpu(mpi_reply->ResponseDataLength)));
+
+		memcpy(req->sense, mpi_reply, sizeof(*mpi_reply));
+		req->sense_len = sizeof(*mpi_reply);
+		req->resid_len = 0;
+		rsp->resid_len -=
+		    le16_to_cpu(mpi_reply->ResponseDataLength);
+
+		/* check if the resp needs to be copied from the allocated
+		 * pci mem */
+		if (rsp->bio->bi_vcnt > 1) {
+			u32 offset = 0;
+			u32 bytes_to_copy =
+			    le16_to_cpu(mpi_reply->ResponseDataLength);
+			bio_for_each_segment(bvec, rsp->bio, i) {
+				if (bytes_to_copy <= bvec->bv_len) {
+					memcpy(page_address(bvec->bv_page) +
+					    bvec->bv_offset, pci_addr_in +
+					    offset, bytes_to_copy);
+					break;
+				} else {
+					memcpy(page_address(bvec->bv_page) +
+					    bvec->bv_offset, pci_addr_in +
+					    offset, bvec->bv_len);
+					bytes_to_copy -= bvec->bv_len;
+				}
+				offset += bvec->bv_len;
+			}
+		}
+	} else {
+		dtransportprintk(ioc, pr_info(MPT3SAS_FMT
+		    "%s - no reply\n", ioc->name, __func__));
+		rc = -ENXIO;
+	}
+
+ issue_host_reset:
+	if (issue_reset) {
+		mpt3sas_base_hard_reset_handler(ioc, CAN_SLEEP,
+		    FORCE_BIG_HAMMER);
+		rc = -ETIMEDOUT;
+	}
+
+ unmap:
+	if (dma_addr_out)
+		pci_unmap_single(ioc->pdev, dma_addr_out, blk_rq_bytes(req),
+		    PCI_DMA_BIDIRECTIONAL);
+	if (dma_addr_in)
+		pci_unmap_single(ioc->pdev, dma_addr_in, blk_rq_bytes(rsp),
+		    PCI_DMA_BIDIRECTIONAL);
+
+ free_pci:
+	if (pci_addr_out)
+		pci_free_consistent(ioc->pdev, blk_rq_bytes(req), pci_addr_out,
+		    pci_dma_out);
+
+	if (pci_addr_in)
+		pci_free_consistent(ioc->pdev, blk_rq_bytes(rsp), pci_addr_in,
+		    pci_dma_in);
+
+ out:
+	ioc->transport_cmds.status = MPT3_CMD_NOT_USED;
+	mutex_unlock(&ioc->transport_cmds.mutex);
+	return rc;
+}
+
+struct sas_function_template mpt3sas_transport_functions = {
+	.get_linkerrors		= _transport_get_linkerrors,
+	.get_enclosure_identifier = _transport_get_enclosure_identifier,
+	.get_bay_identifier	= _transport_get_bay_identifier,
+	.phy_reset		= _transport_phy_reset,
+	.phy_enable		= _transport_phy_enable,
+	.set_phy_speed		= _transport_phy_speed,
+	.smp_handler		= _transport_smp_handler,
+};
+
+struct scsi_transport_template *mpt3sas_transport_template;
diff --git a/drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c b/drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c
new file mode 100644
index 000000000000..da6c5f25749c
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c
@@ -0,0 +1,434 @@
+/*
+ * This module provides common API to set Diagnostic trigger for MPT
+ * (Message Passing Technology) based controllers
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/compat.h>
+#include <linux/poll.h>
+
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#include "mpt3sas_base.h"
+
+/**
+ * _mpt3sas_raise_sigio - notifiy app
+ * @ioc: per adapter object
+ * @event_data:
+ */
+static void
+_mpt3sas_raise_sigio(struct MPT3SAS_ADAPTER *ioc,
+	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
+{
+	Mpi2EventNotificationReply_t *mpi_reply;
+	u16 sz, event_data_sz;
+	unsigned long flags;
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n",
+	    ioc->name, __func__));
+
+	sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
+	    sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4;
+	mpi_reply = kzalloc(sz, GFP_KERNEL);
+	if (!mpi_reply)
+		goto out;
+	mpi_reply->Event = cpu_to_le16(MPI3_EVENT_DIAGNOSTIC_TRIGGER_FIRED);
+	event_data_sz = (sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4) / 4;
+	mpi_reply->EventDataLength = cpu_to_le16(event_data_sz);
+	memcpy(&mpi_reply->EventData, event_data,
+	    sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: add to driver event log\n",
+		ioc->name, __func__));
+	mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
+	kfree(mpi_reply);
+ out:
+
+	/* clearing the diag_trigger_active flag */
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: clearing diag_trigger_active flag\n",
+		ioc->name, __func__));
+	ioc->diag_trigger_active = 0;
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+	    __func__));
+}
+
+/**
+ * mpt3sas_process_trigger_data - process the event data for the trigger
+ * @ioc: per adapter object
+ * @event_data:
+ */
+void
+mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,
+	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
+{
+	u8 issue_reset = 0;
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: enter\n",
+	    ioc->name, __func__));
+
+	/* release the diag buffer trace */
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
+		dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: release trace diag buffer\n", ioc->name, __func__));
+		mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
+		    &issue_reset);
+	}
+
+	_mpt3sas_raise_sigio(ioc, event_data);
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+	    __func__));
+}
+
+/**
+ * mpt3sas_trigger_master - Master trigger handler
+ * @ioc: per adapter object
+ * @trigger_bitmask:
+ *
+ */
+void
+mpt3sas_trigger_master(struct MPT3SAS_ADAPTER *ioc, u32 trigger_bitmask)
+{
+	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
+	unsigned long flags;
+	u8 found_match = 0;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+
+	if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||
+	    trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
+		goto by_pass_checks;
+
+	/* check to see if trace buffers are currently registered */
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+	/* check to see if trace buffers are currently released */
+	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+ by_pass_checks:
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: enter - trigger_bitmask = 0x%08x\n",
+		ioc->name, __func__, trigger_bitmask));
+
+	/* don't send trigger if an trigger is currently active */
+	if (ioc->diag_trigger_active) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		goto out;
+	}
+
+	/* check for the trigger condition */
+	if (ioc->diag_trigger_master.MasterData & trigger_bitmask) {
+		found_match = 1;
+		ioc->diag_trigger_active = 1;
+		dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: setting diag_trigger_active flag\n",
+		ioc->name, __func__));
+	}
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+
+	if (!found_match)
+		goto out;
+
+	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
+	event_data.trigger_type = MPT3SAS_TRIGGER_MASTER;
+	event_data.u.master.MasterData = trigger_bitmask;
+
+	if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||
+	    trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
+		_mpt3sas_raise_sigio(ioc, &event_data);
+	else
+		mpt3sas_send_trigger_data_event(ioc, &event_data);
+
+ out:
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+	    __func__));
+}
+
+/**
+ * mpt3sas_trigger_event - Event trigger handler
+ * @ioc: per adapter object
+ * @event:
+ * @log_entry_qualifier:
+ *
+ */
+void
+mpt3sas_trigger_event(struct MPT3SAS_ADAPTER *ioc, u16 event,
+	u16 log_entry_qualifier)
+{
+	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
+	struct SL_WH_EVENT_TRIGGER_T *event_trigger;
+	int i;
+	unsigned long flags;
+	u8 found_match;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+
+	/* check to see if trace buffers are currently registered */
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+	/* check to see if trace buffers are currently released */
+	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: enter - event = 0x%04x, log_entry_qualifier = 0x%04x\n",
+		ioc->name, __func__, event, log_entry_qualifier));
+
+	/* don't send trigger if an trigger is currently active */
+	if (ioc->diag_trigger_active) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		goto out;
+	}
+
+	/* check for the trigger condition */
+	event_trigger = ioc->diag_trigger_event.EventTriggerEntry;
+	for (i = 0 , found_match = 0; i < ioc->diag_trigger_event.ValidEntries
+	    && !found_match; i++, event_trigger++) {
+		if (event_trigger->EventValue != event)
+			continue;
+		if (event == MPI2_EVENT_LOG_ENTRY_ADDED) {
+			if (event_trigger->LogEntryQualifier ==
+			    log_entry_qualifier)
+				found_match = 1;
+			continue;
+		}
+		found_match = 1;
+		ioc->diag_trigger_active = 1;
+		dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+			"%s: setting diag_trigger_active flag\n",
+			ioc->name, __func__));
+	}
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+
+	if (!found_match)
+		goto out;
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: setting diag_trigger_active flag\n",
+		ioc->name, __func__));
+	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
+	event_data.trigger_type = MPT3SAS_TRIGGER_EVENT;
+	event_data.u.event.EventValue = event;
+	event_data.u.event.LogEntryQualifier = log_entry_qualifier;
+	mpt3sas_send_trigger_data_event(ioc, &event_data);
+ out:
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+	    __func__));
+}
+
+/**
+ * mpt3sas_trigger_scsi - SCSI trigger handler
+ * @ioc: per adapter object
+ * @sense_key:
+ * @asc:
+ * @ascq:
+ *
+ */
+void
+mpt3sas_trigger_scsi(struct MPT3SAS_ADAPTER *ioc, u8 sense_key, u8 asc,
+	u8 ascq)
+{
+	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
+	struct SL_WH_SCSI_TRIGGER_T *scsi_trigger;
+	int i;
+	unsigned long flags;
+	u8 found_match;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+
+	/* check to see if trace buffers are currently registered */
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+	/* check to see if trace buffers are currently released */
+	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: enter - sense_key = 0x%02x, asc = 0x%02x, ascq = 0x%02x\n",
+		ioc->name, __func__, sense_key, asc, ascq));
+
+	/* don't send trigger if an trigger is currently active */
+	if (ioc->diag_trigger_active) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		goto out;
+	}
+
+	/* check for the trigger condition */
+	scsi_trigger = ioc->diag_trigger_scsi.SCSITriggerEntry;
+	for (i = 0 , found_match = 0; i < ioc->diag_trigger_scsi.ValidEntries
+	    && !found_match; i++, scsi_trigger++) {
+		if (scsi_trigger->SenseKey != sense_key)
+			continue;
+		if (!(scsi_trigger->ASC == 0xFF || scsi_trigger->ASC == asc))
+			continue;
+		if (!(scsi_trigger->ASCQ == 0xFF || scsi_trigger->ASCQ == ascq))
+			continue;
+		found_match = 1;
+		ioc->diag_trigger_active = 1;
+	}
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+
+	if (!found_match)
+		goto out;
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: setting diag_trigger_active flag\n",
+		ioc->name, __func__));
+	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
+	event_data.trigger_type = MPT3SAS_TRIGGER_SCSI;
+	event_data.u.scsi.SenseKey = sense_key;
+	event_data.u.scsi.ASC = asc;
+	event_data.u.scsi.ASCQ = ascq;
+	mpt3sas_send_trigger_data_event(ioc, &event_data);
+ out:
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+	    __func__));
+}
+
+/**
+ * mpt3sas_trigger_mpi - MPI trigger handler
+ * @ioc: per adapter object
+ * @ioc_status:
+ * @loginfo:
+ *
+ */
+void
+mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status, u32 loginfo)
+{
+	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
+	struct SL_WH_MPI_TRIGGER_T *mpi_trigger;
+	int i;
+	unsigned long flags;
+	u8 found_match;
+
+	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
+
+	/* check to see if trace buffers are currently registered */
+	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+	/* check to see if trace buffers are currently released */
+	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
+	    MPT3_DIAG_BUFFER_IS_RELEASED) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		return;
+	}
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: enter - ioc_status = 0x%04x, loginfo = 0x%08x\n",
+		ioc->name, __func__, ioc_status, loginfo));
+
+	/* don't send trigger if an trigger is currently active */
+	if (ioc->diag_trigger_active) {
+		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+		goto out;
+	}
+
+	/* check for the trigger condition */
+	mpi_trigger = ioc->diag_trigger_mpi.MPITriggerEntry;
+	for (i = 0 , found_match = 0; i < ioc->diag_trigger_mpi.ValidEntries
+	    && !found_match; i++, mpi_trigger++) {
+		if (mpi_trigger->IOCStatus != ioc_status)
+			continue;
+		if (!(mpi_trigger->IocLogInfo == 0xFFFFFFFF ||
+		    mpi_trigger->IocLogInfo == loginfo))
+			continue;
+		found_match = 1;
+		ioc->diag_trigger_active = 1;
+	}
+	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
+
+	if (!found_match)
+		goto out;
+
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT
+		"%s: setting diag_trigger_active flag\n",
+		ioc->name, __func__));
+	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
+	event_data.trigger_type = MPT3SAS_TRIGGER_MPI;
+	event_data.u.mpi.IOCStatus = ioc_status;
+	event_data.u.mpi.IocLogInfo = loginfo;
+	mpt3sas_send_trigger_data_event(ioc, &event_data);
+ out:
+	dTriggerDiagPrintk(ioc, pr_info(MPT3SAS_FMT "%s: exit\n", ioc->name,
+	    __func__));
+}
diff --git a/drivers/scsi/mpt3sas/mpt3sas_trigger_diag.h b/drivers/scsi/mpt3sas/mpt3sas_trigger_diag.h
new file mode 100644
index 000000000000..a10c30907394
--- /dev/null
+++ b/drivers/scsi/mpt3sas/mpt3sas_trigger_diag.h
@@ -0,0 +1,193 @@
+/*
+ * This is the Fusion MPT base driver providing common API layer interface
+ * to set Diagnostic triggers for MPT (Message Passing Technology) based
+ * controllers
+ *
+ * This code is based on drivers/scsi/mpt3sas/mpt3sas_base.h
+ * Copyright (C) 2012  LSI Corporation
+ *  (mailto:DL-MPTFusionLinux@lsi.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * NO WARRANTY
+ * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+ * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+ * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+ * solely responsible for determining the appropriateness of using and
+ * distributing the Program and assumes all risks associated with its
+ * exercise of rights under this Agreement, including but not limited to
+ * the risks and costs of program errors, damage to or loss of data,
+ * programs or equipment, and unavailability or interruption of operations.
+
+ * DISCLAIMER OF LIABILITY
+ * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+ * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
+ * USA.
+ */
+  /* Diagnostic Trigger Configuration Data Structures */
+
+#ifndef MPT3SAS_TRIGGER_DIAG_H_INCLUDED
+#define MPT3SAS_TRIGGER_DIAG_H_INCLUDED
+
+/* limitation on number of entries */
+#define NUM_VALID_ENTRIES               (20)
+
+/* trigger types */
+#define MPT3SAS_TRIGGER_MASTER          (1)
+#define MPT3SAS_TRIGGER_EVENT           (2)
+#define MPT3SAS_TRIGGER_SCSI            (3)
+#define MPT3SAS_TRIGGER_MPI             (4)
+
+/* trigger names */
+#define MASTER_TRIGGER_FILE_NAME        "diag_trigger_master"
+#define EVENT_TRIGGERS_FILE_NAME        "diag_trigger_event"
+#define SCSI_TRIGGERS_FILE_NAME         "diag_trigger_scsi"
+#define MPI_TRIGGER_FILE_NAME           "diag_trigger_mpi"
+
+/* master trigger bitmask */
+#define MASTER_TRIGGER_FW_FAULT         (0x00000001)
+#define MASTER_TRIGGER_ADAPTER_RESET    (0x00000002)
+#define MASTER_TRIGGER_TASK_MANAGMENT   (0x00000004)
+#define MASTER_TRIGGER_DEVICE_REMOVAL   (0x00000008)
+
+/* fake firmware event for tigger */
+#define MPI3_EVENT_DIAGNOSTIC_TRIGGER_FIRED	(0x6E)
+
+/**
+ * MasterTrigger is a single U32 passed to/from sysfs.
+ *
+ * Bit Flags (enables) include:
+ * 1. FW Faults
+ * 2. Adapter Reset issued by driver
+ * 3. TMs
+ * 4. Device Remove Event sent by FW
+ */
+
+struct SL_WH_MASTER_TRIGGER_T {
+	uint32_t MasterData;
+};
+
+/**
+ * struct SL_WH_EVENT_TRIGGER_T -  Definition of an event trigger element
+ * @EventValue: Event Code to trigger on
+ * @LogEntryQualifier: Type of FW event that logged (Log Entry Added Event only)
+ *
+ * Defines an event that should induce a DIAG_TRIGGER driver event if observed.
+ */
+struct SL_WH_EVENT_TRIGGER_T {
+	uint16_t EventValue;
+	uint16_t LogEntryQualifier;
+};
+
+/**
+ * struct SL_WH_EVENT_TRIGGERS_T -  Structure passed to/from sysfs containing a
+ *    list of Event Triggers to be monitored for.
+ * @ValidEntries: Number of _SL_WH_EVENT_TRIGGER_T structures contained in this
+ *    structure.
+ * @EventTriggerEntry: List of Event trigger elements.
+ *
+ * This binary structure is transferred via sysfs to get/set Event Triggers
+ * in the Linux Driver.
+ */
+
+struct SL_WH_EVENT_TRIGGERS_T {
+	uint32_t ValidEntries;
+	struct SL_WH_EVENT_TRIGGER_T EventTriggerEntry[NUM_VALID_ENTRIES];
+};
+
+/**
+ * struct SL_WH_SCSI_TRIGGER_T -  Definition of a SCSI trigger element
+ * @ASCQ: Additional Sense Code Qualifier.  Can be specific or 0xFF for
+ *     wildcard.
+ * @ASC: Additional Sense Code.  Can be specific or 0xFF for wildcard
+ * @SenseKey: SCSI Sense Key
+ *
+ * Defines a sense key (single or many variants) that should induce a
+ * DIAG_TRIGGER driver event if observed.
+ */
+struct SL_WH_SCSI_TRIGGER_T {
+	U8 ASCQ;
+	U8 ASC;
+	U8 SenseKey;
+	U8 Reserved;
+};
+
+/**
+ * struct SL_WH_SCSI_TRIGGERS_T -  Structure passed to/from sysfs containing a
+ *    list of SCSI sense codes that should trigger a DIAG_SERVICE event when
+ *    observed.
+ * @ValidEntries: Number of _SL_WH_SCSI_TRIGGER_T structures contained in this
+ *    structure.
+ * @SCSITriggerEntry: List of SCSI Sense Code trigger elements.
+ *
+ * This binary structure is transferred via sysfs to get/set SCSI Sense Code
+ * Triggers in the Linux Driver.
+ */
+struct SL_WH_SCSI_TRIGGERS_T {
+	uint32_t ValidEntries;
+	struct SL_WH_SCSI_TRIGGER_T SCSITriggerEntry[NUM_VALID_ENTRIES];
+};
+
+/**
+ * struct SL_WH_MPI_TRIGGER_T -  Definition of an MPI trigger element
+ * @IOCStatus: MPI IOCStatus
+ * @IocLogInfo: MPI IocLogInfo.  Can be specific or 0xFFFFFFFF for wildcard
+ *
+ * Defines a MPI IOCStatus/IocLogInfo pair that should induce a DIAG_TRIGGER
+ * driver event if observed.
+ */
+struct SL_WH_MPI_TRIGGER_T {
+	uint16_t IOCStatus;
+	uint16_t Reserved;
+	uint32_t IocLogInfo;
+};
+
+/**
+ * struct SL_WH_MPI_TRIGGERS_T -  Structure passed to/from sysfs containing a
+ *    list of MPI IOCStatus/IocLogInfo pairs that should trigger a DIAG_SERVICE
+ *    event when observed.
+ * @ValidEntries: Number of _SL_WH_MPI_TRIGGER_T structures contained in this
+ *    structure.
+ * @MPITriggerEntry: List of MPI IOCStatus/IocLogInfo trigger elements.
+ *
+ * This binary structure is transferred via sysfs to get/set MPI Error Triggers
+ * in the Linux Driver.
+ */
+struct SL_WH_MPI_TRIGGERS_T {
+	uint32_t ValidEntries;
+	struct SL_WH_MPI_TRIGGER_T MPITriggerEntry[NUM_VALID_ENTRIES];
+};
+
+/**
+ * struct SL_WH_TRIGGERS_EVENT_DATA_T -  event data for trigger
+ * @trigger_type: trigger type (see MPT3SAS_TRIGGER_XXXX)
+ * @u: trigger condition that caused trigger to be sent
+ */
+struct SL_WH_TRIGGERS_EVENT_DATA_T {
+	uint32_t trigger_type;
+	union {
+		struct SL_WH_MASTER_TRIGGER_T master;
+		struct SL_WH_EVENT_TRIGGER_T event;
+		struct SL_WH_SCSI_TRIGGER_T scsi;
+		struct SL_WH_MPI_TRIGGER_T mpi;
+	} u;
+};
+#endif /* MPT3SAS_TRIGGER_DIAG_H_INCLUDED */