diff options
Diffstat (limited to 'drivers/scsi/mpt2sas')
| -rw-r--r-- | drivers/scsi/mpt2sas/Kconfig | 61 | ||||
| -rw-r--r-- | drivers/scsi/mpt2sas/Makefile | 15 | ||||
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_module.c | 281 | ||||
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_warpdrive.c | 338 |
4 files changed, 0 insertions, 695 deletions
diff --git a/drivers/scsi/mpt2sas/Kconfig b/drivers/scsi/mpt2sas/Kconfig deleted file mode 100644 index 1356a0aa5d14..000000000000 --- a/drivers/scsi/mpt2sas/Kconfig +++ /dev/null @@ -1,61 +0,0 @@ -# -# Kernel configuration file for the MPT2SAS -# -# This code is based on drivers/scsi/mpt2sas/Kconfig -# Copyright (C) 2007-2014 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_MPT2SAS - tristate "LSI MPT Fusion SAS 2.0 Device Driver" - depends on PCI && SCSI - select SCSI_SAS_ATTRS - select RAID_ATTRS - ---help--- - This driver supports PCI-Express SAS 6Gb/s Host Adapters. - -config SCSI_MPT2SAS_MAX_SGE - int "LSI MPT Fusion Max number of SG Entries (16 - 128)" - depends on PCI && SCSI && SCSI_MPT2SAS - default "128" - range 16 128 - ---help--- - This option allows you to specify the maximum number of scatter- - gather entries per I/O. The driver default is 128, which matches - SAFE_PHYS_SEGMENTS. However, it may decreased down to 16. - Decreasing this parameter will reduce memory requirements - on a per controller instance. diff --git a/drivers/scsi/mpt2sas/Makefile b/drivers/scsi/mpt2sas/Makefile deleted file mode 100644 index 37716169b91a..000000000000 --- a/drivers/scsi/mpt2sas/Makefile +++ /dev/null @@ -1,15 +0,0 @@ -# mpt2sas makefile - -# share the official mpi headers from the mpt3sas driver -ccflags-y += -I$(src)/../mpt3sas -ccflags-y += -DSCSI_MPT2SAS - -# use the common object files from mpt3sas driver -obj-$(CONFIG_SCSI_MPT2SAS) += mpt2sas.o -mpt2sas-y += ../mpt3sas/mpt3sas_base.o \ - ../mpt3sas/mpt3sas_config.o \ - ../mpt3sas/mpt3sas_scsih.o \ - ../mpt3sas/mpt3sas_transport.o \ - ../mpt3sas/mpt3sas_ctl.o \ - ../mpt3sas/mpt3sas_trigger_diag.o \ - mpt2sas_module.o diff --git a/drivers/scsi/mpt2sas/mpt2sas_module.c b/drivers/scsi/mpt2sas/mpt2sas_module.c deleted file mode 100644 index d407ed04315d..000000000000 --- a/drivers/scsi/mpt2sas/mpt2sas_module.c +++ /dev/null @@ -1,281 +0,0 @@ -/* - * Scsi Host Layer for MPT (Message Passing Technology) based controllers - * - * Copyright (C) 2012-2014 LSI Corporation - * Copyright (C) 2013-2015 Avago Technologies - * (mailto: MPT-FusionLinux.pdl@avagotech.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. - */ - -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/raid_class.h> - -#include "mpt3sas_base.h" -#include "mpt3sas_ctl.h" - -MODULE_AUTHOR(MPT3SAS_AUTHOR); -MODULE_DESCRIPTION(MPT2SAS_DESCRIPTION); -MODULE_LICENSE("GPL"); -MODULE_VERSION(MPT2SAS_DRIVER_VERSION); - -/* shost template */ -static struct scsi_host_template mpt2sas_driver_template = { - .module = THIS_MODULE, - .name = "Fusion MPT SAS Host", - .proc_name = MPT2SAS_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, - .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 = MPT2SAS_SG_DEPTH, - .max_sectors = 32767, - .cmd_per_lun = 7, - .use_clustering = ENABLE_CLUSTERING, - .shost_attrs = mpt3sas_host_attrs, - .sdev_attrs = mpt3sas_dev_attrs, - .track_queue_depth = 1, -}; - -/* raid transport support */ -static struct raid_function_template mpt2sas_raid_functions = { - .cookie = &mpt2sas_driver_template, - .is_raid = scsih_is_raid, - .get_resync = scsih_get_resync, - .get_state = scsih_get_state, -}; - -/* - * The pci device ids are defined in mpi/mpi2_cnfg.h. - */ -static const struct pci_device_id mpt2sas_pci_table[] = { - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004, - PCI_ANY_ID, PCI_ANY_ID }, - /* Falcon ~ 2008*/ - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2008, - PCI_ANY_ID, PCI_ANY_ID }, - /* Liberator ~ 2108 */ - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_1, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_2, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2108_3, - PCI_ANY_ID, PCI_ANY_ID }, - /* Meteor ~ 2116 */ - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_1, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2, - PCI_ANY_ID, PCI_ANY_ID }, - /* Thunderbolt ~ 2208 */ - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_2, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_3, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_4, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_5, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_6, - PCI_ANY_ID, PCI_ANY_ID }, - /* Mustang ~ 2308 */ - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_1, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_2, - PCI_ANY_ID, PCI_ANY_ID }, - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2308_3, - PCI_ANY_ID, PCI_ANY_ID }, - /* SSS6200 */ - { MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200, - PCI_ANY_ID, PCI_ANY_ID }, - {0} /* Terminating entry */ -}; -MODULE_DEVICE_TABLE(pci, mpt2sas_pci_table); - -static const struct file_operations mpt2sas_ctl_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = ctl_ioctl, - .poll = ctl_poll, - .fasync = ctl_fasync, -#ifdef CONFIG_COMPAT - .compat_ioctl = ctl_ioctl_compat, -#endif - .llseek = noop_llseek, -}; - -static struct miscdevice mpt2sas_ctl_dev = { - .minor = MPT2SAS_MINOR, - .name = MPT2SAS_DEV_NAME, - .fops = &mpt2sas_ctl_fops, -}; - -/** - * mpt2sas_ctl_init - main entry point for ctl. - * - */ -void -mpt2sas_ctl_init(void) -{ - ctl_init(); - if (misc_register(&mpt2sas_ctl_dev) < 0) - pr_err("%s can't register misc device [minor=%d]\n", - MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR); -} - -/** - * mpt2sas_ctl_exit - exit point for ctl - * - */ -void -mpt2sas_ctl_exit(void) -{ - ctl_exit(); - misc_deregister(&mpt2sas_ctl_dev); -} - -/** - * _mpt2sas_probe - attach and add scsi host - * @pdev: PCI device struct - * @id: pci device id - * - * Returns 0 success, anything else error. - */ -static int -_mpt2sas_probe(struct pci_dev *pdev, const struct pci_device_id *id) -{ - struct Scsi_Host *shost; - int rv; - - shost = scsi_host_alloc(&mpt2sas_driver_template, - sizeof(struct MPT3SAS_ADAPTER)); - if (!shost) - return -ENODEV; - - sprintf(driver_name, "%s", MPT2SAS_DRIVER_NAME); - rv = scsih_probe(pdev, shost); - return rv; -} - -static struct pci_error_handlers _mpt2sas_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 mpt2sas_driver = { - .name = MPT2SAS_DRIVER_NAME, - .id_table = mpt2sas_pci_table, - .probe = _mpt2sas_probe, - .remove = scsih_remove, - .shutdown = scsih_shutdown, - .err_handler = &_mpt2sas_err_handler, -#ifdef CONFIG_PM - .suspend = scsih_suspend, - .resume = scsih_resume, -#endif -}; - -/** - * _mpt2sas_init - main entry point for this driver. - * - * Returns 0 success, anything else error. - */ -static int __init -_mpt2sas_init(void) -{ - int error; - - pr_info("%s version %s loaded\n", MPT2SAS_DRIVER_NAME, - MPT2SAS_DRIVER_VERSION); - - mpt3sas_transport_template = - sas_attach_transport(&mpt3sas_transport_functions); - if (!mpt3sas_transport_template) - return -ENODEV; - - mpt3sas_raid_template = raid_class_attach(&mpt2sas_raid_functions); - if (!mpt3sas_raid_template) { - sas_release_transport(mpt3sas_transport_template); - return -ENODEV; - } - - error = scsih_init(); - if (error) { - scsih_exit(); - return error; - } - - mpt2sas_ctl_init(); - - error = pci_register_driver(&mpt2sas_driver); - if (error) - scsih_exit(); - - return error; -} - -/** - * _mpt2sas_exit - exit point for this driver (when it is a module). - * - */ -static void __exit -_mpt2sas_exit(void) -{ - pr_info("mpt2sas version %s unloading\n", - MPT2SAS_DRIVER_VERSION); - - pci_unregister_driver(&mpt2sas_driver); - - mpt2sas_ctl_exit(); - - scsih_exit(); -} - -module_init(_mpt2sas_init); -module_exit(_mpt2sas_exit); diff --git a/drivers/scsi/mpt2sas/mpt2sas_warpdrive.c b/drivers/scsi/mpt2sas/mpt2sas_warpdrive.c deleted file mode 100644 index c4fcbc227346..000000000000 --- a/drivers/scsi/mpt2sas/mpt2sas_warpdrive.c +++ /dev/null @@ -1,338 +0,0 @@ -/* - * Scsi Host Layer for MPT (Message Passing Technology) based controllers - * - * Copyright (C) 2012-2014 LSI Corporation - * Copyright (C) 2013-2015 Avago Technologies - * (mailto: MPT-FusionLinux.pdl@avagotech.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. - */ - -/** - * _scsih_disable_ddio - Disable direct I/O for all the volumes - * @ioc: per adapter object - */ -static void -_scsih_disable_ddio(struct MPT3SAS_ADAPTER *ioc) -{ - Mpi2RaidVolPage1_t vol_pg1; - Mpi2ConfigReply_t mpi_reply; - struct _raid_device *raid_device; - u16 handle; - u16 ioc_status; - unsigned long flags; - - handle = 0xFFFF; - while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply, - &vol_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(vol_pg1.DevHandle); - spin_lock_irqsave(&ioc->raid_device_lock, flags); - raid_device = _scsih_raid_device_find_by_handle(ioc, handle); - if (raid_device) - raid_device->direct_io_enabled = 0; - spin_unlock_irqrestore(&ioc->raid_device_lock, flags); - } - return; -} - - -/** - * _scsih_get_num_volumes - Get number of volumes in the ioc - * @ioc: per adapter object - */ -static u8 -_scsih_get_num_volumes(struct MPT3SAS_ADAPTER *ioc) -{ - Mpi2RaidVolPage1_t vol_pg1; - Mpi2ConfigReply_t mpi_reply; - u16 handle; - u8 vol_cnt = 0; - u16 ioc_status; - - handle = 0xFFFF; - while (!(mpt3sas_config_get_raid_volume_pg1(ioc, &mpi_reply, - &vol_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; - vol_cnt++; - handle = le16_to_cpu(vol_pg1.DevHandle); - } - return vol_cnt; -} - - -/** - * _scsih_init_warpdrive_properties - Set properties for warpdrive direct I/O. - * @ioc: per adapter object - * @raid_device: the raid_device object - */ -static void -_scsih_init_warpdrive_properties(struct MPT3SAS_ADAPTER *ioc, - struct _raid_device *raid_device) -{ - Mpi2RaidVolPage0_t *vol_pg0; - Mpi2RaidPhysDiskPage0_t pd_pg0; - Mpi2ConfigReply_t mpi_reply; - u16 sz; - u8 num_pds, count; - unsigned long stripe_sz, block_sz; - u8 stripe_exp, block_exp; - u64 dev_max_lba; - - if (!ioc->is_warpdrive) - return; - - if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "globally as drives are exposed\n", ioc->name); - return; - } - if (_scsih_get_num_volumes(ioc) > 1) { - _scsih_disable_ddio(ioc); - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "globally as number of drives > 1\n", ioc->name); - return; - } - if ((mpt3sas_config_get_number_pds(ioc, raid_device->handle, - &num_pds)) || !num_pds) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "Failure in computing number of drives\n", ioc->name); - return; - } - - sz = offsetof(Mpi2RaidVolPage0_t, PhysDisk) + (num_pds * - sizeof(Mpi2RaidVol0PhysDisk_t)); - vol_pg0 = kzalloc(sz, GFP_KERNEL); - if (!vol_pg0) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "Memory allocation failure for RVPG0\n", ioc->name); - return; - } - - if ((mpt3sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0, - MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "Failure in retrieving RVPG0\n", ioc->name); - kfree(vol_pg0); - return; - } - - /* - * WARPDRIVE:If number of physical disks in a volume exceeds the max pds - * assumed for WARPDRIVE, disable direct I/O - */ - if (num_pds > MPT_MAX_WARPDRIVE_PDS) { - pr_warn(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "for the drive with handle(0x%04x): num_mem=%d, " - "max_mem_allowed=%d\n", ioc->name, raid_device->handle, - num_pds, MPT_MAX_WARPDRIVE_PDS); - kfree(vol_pg0); - return; - } - for (count = 0; count < num_pds; count++) { - if (mpt3sas_config_get_phys_disk_pg0(ioc, &mpi_reply, - &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_PHYSDISKNUM, - vol_pg0->PhysDisk[count].PhysDiskNum) || - pd_pg0.DevHandle == MPT3SAS_INVALID_DEVICE_HANDLE) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is " - "disabled for the drive with handle(0x%04x) member" - "handle retrieval failed for member number=%d\n", - ioc->name, raid_device->handle, - vol_pg0->PhysDisk[count].PhysDiskNum); - goto out_error; - } - /* Disable direct I/O if member drive lba exceeds 4 bytes */ - dev_max_lba = le64_to_cpu(pd_pg0.DeviceMaxLBA); - if (dev_max_lba >> 32) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is " - "disabled for the drive with handle(0x%04x) member" - " handle (0x%04x) unsupported max lba 0x%016llx\n", - ioc->name, raid_device->handle, - le16_to_cpu(pd_pg0.DevHandle), - (unsigned long long)dev_max_lba); - goto out_error; - } - - raid_device->pd_handle[count] = le16_to_cpu(pd_pg0.DevHandle); - } - - /* - * Assumption for WD: Direct I/O is not supported if the volume is - * not RAID0 - */ - if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "for the drive with handle(0x%04x): type=%d, " - "s_sz=%uK, blk_size=%u\n", ioc->name, - raid_device->handle, raid_device->volume_type, - (le32_to_cpu(vol_pg0->StripeSize) * - le16_to_cpu(vol_pg0->BlockSize)) / 1024, - le16_to_cpu(vol_pg0->BlockSize)); - goto out_error; - } - - stripe_sz = le32_to_cpu(vol_pg0->StripeSize); - stripe_exp = find_first_bit(&stripe_sz, 32); - if (stripe_exp == 32) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "for the drive with handle(0x%04x) invalid stripe sz %uK\n", - ioc->name, raid_device->handle, - (le32_to_cpu(vol_pg0->StripeSize) * - le16_to_cpu(vol_pg0->BlockSize)) / 1024); - goto out_error; - } - raid_device->stripe_exponent = stripe_exp; - block_sz = le16_to_cpu(vol_pg0->BlockSize); - block_exp = find_first_bit(&block_sz, 16); - if (block_exp == 16) { - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is disabled " - "for the drive with handle(0x%04x) invalid block sz %u\n", - ioc->name, raid_device->handle, - le16_to_cpu(vol_pg0->BlockSize)); - goto out_error; - } - raid_device->block_exponent = block_exp; - raid_device->direct_io_enabled = 1; - - pr_info(MPT3SAS_FMT "WarpDrive : Direct IO is Enabled for the drive" - " with handle(0x%04x)\n", ioc->name, raid_device->handle); - /* - * WARPDRIVE: Though the following fields are not used for direct IO, - * stored for future purpose: - */ - raid_device->max_lba = le64_to_cpu(vol_pg0->MaxLBA); - raid_device->stripe_sz = le32_to_cpu(vol_pg0->StripeSize); - raid_device->block_sz = le16_to_cpu(vol_pg0->BlockSize); - - - kfree(vol_pg0); - return; - -out_error: - raid_device->direct_io_enabled = 0; - for (count = 0; count < num_pds; count++) - raid_device->pd_handle[count] = 0; - kfree(vol_pg0); - return; -} - -/** - * _scsih_scsi_direct_io_get - returns direct io flag - * @ioc: per adapter object - * @smid: system request message index - * - * Returns the smid stored scmd pointer. - */ -static inline u8 -_scsih_scsi_direct_io_get(struct MPT3SAS_ADAPTER *ioc, u16 smid) -{ - return ioc->scsi_lookup[smid - 1].direct_io; -} - -/** - * _scsih_scsi_direct_io_set - sets direct io flag - * @ioc: per adapter object - * @smid: system request message index - * @direct_io: Zero or non-zero value to set in the direct_io flag - * - * Returns Nothing. - */ -static inline void -_scsih_scsi_direct_io_set(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 direct_io) -{ - ioc->scsi_lookup[smid - 1].direct_io = direct_io; -} - -/** - * _scsih_setup_direct_io - setup MPI request for WARPDRIVE Direct I/O - * @ioc: per adapter object - * @scmd: pointer to scsi command object - * @raid_device: pointer to raid device data structure - * @mpi_request: pointer to the SCSI_IO reqest message frame - * @smid: system request message index - * - * Returns nothing - */ -static void -_scsih_setup_direct_io(struct MPT3SAS_ADAPTER *ioc, struct scsi_cmnd *scmd, - struct _raid_device *raid_device, Mpi2SCSIIORequest_t *mpi_request, - u16 smid) -{ - sector_t v_lba, p_lba, stripe_off, stripe_unit, column, io_size; - u32 stripe_sz, stripe_exp; - u8 num_pds, cmd = scmd->cmnd[0]; - - if (cmd != READ_10 && cmd != WRITE_10 && - cmd != READ_16 && cmd != WRITE_16) - return; - - if (cmd == READ_10 || cmd == WRITE_10) - v_lba = get_unaligned_be32(&mpi_request->CDB.CDB32[2]); - else - v_lba = get_unaligned_be64(&mpi_request->CDB.CDB32[2]); - - io_size = scsi_bufflen(scmd) >> raid_device->block_exponent; - - if (v_lba + io_size - 1 > raid_device->max_lba) - return; - - stripe_sz = raid_device->stripe_sz; - stripe_exp = raid_device->stripe_exponent; - stripe_off = v_lba & (stripe_sz - 1); - - /* Return unless IO falls within a stripe */ - if (stripe_off + io_size > stripe_sz) - return; - - num_pds = raid_device->num_pds; - p_lba = v_lba >> stripe_exp; - stripe_unit = p_lba / num_pds; - column = p_lba % num_pds; - p_lba = (stripe_unit << stripe_exp) + stripe_off; - mpi_request->DevHandle = cpu_to_le16(raid_device->pd_handle[column]); - - if (cmd == READ_10 || cmd == WRITE_10) - put_unaligned_be32(lower_32_bits(p_lba), - &mpi_request->CDB.CDB32[2]); - else - put_unaligned_be64(p_lba, &mpi_request->CDB.CDB32[2]); - - _scsih_scsi_direct_io_set(ioc, smid, 1); -} |
