Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

16 files changed, 10038 insertions, 0 deletions

diff --git a/drivers/message/i2o/Kconfig b/drivers/message/i2o/Kconfig
new file mode 100644
index 000000000000..8d132b0d6b12
--- /dev/null
+++ b/drivers/message/i2o/Kconfig
@@ -0,0 +1,75 @@
+
+menu "I2O device support"
+
+config I2O
+	tristate "I2O support"
+	depends on PCI
+	---help---
+	  The Intelligent Input/Output (I2O) architecture allows hardware
+	  drivers to be split into two parts: an operating system specific
+	  module called the OSM and an hardware specific module called the
+	  HDM. The OSM can talk to a whole range of HDM's, and ideally the
+	  HDM's are not OS dependent. This allows for the same HDM driver to
+	  be used under different operating systems if the relevant OSM is in
+	  place. In order for this to work, you need to have an I2O interface
+	  adapter card in your computer. This card contains a special I/O
+	  processor (IOP), thus allowing high speeds since the CPU does not
+	  have to deal with I/O.
+
+	  If you say Y here, you will get a choice of interface adapter
+	  drivers and OSM's with the following questions.
+
+	  To compile this support as a module, choose M here: the
+	  modules will be called i2o_core.
+
+	  If unsure, say N.
+
+config I2O_CONFIG
+	tristate "I2O Configuration support"
+	depends on PCI && I2O
+	help
+	  Say Y for support of the configuration interface for the I2O adapters.
+	  If you have a RAID controller from Adaptec and you want to use the
+	  raidutils to manage your RAID array, you have to say Y here.
+
+	  To compile this support as a module, choose M here: the
+	  module will be called i2o_config.
+
+config I2O_BLOCK
+	tristate "I2O Block OSM"
+	depends on I2O
+	help
+	  Include support for the I2O Block OSM. The Block OSM presents disk
+	  and other structured block devices to the operating system. If you
+	  are using an RAID controller, you could access the array only by
+	  the Block OSM driver. But it is possible to access the single disks
+	  by the SCSI OSM driver, for example to monitor the disks.
+
+	  To compile this support as a module, choose M here: the
+	  module will be called i2o_block.
+
+config I2O_SCSI
+	tristate "I2O SCSI OSM"
+	depends on I2O && SCSI
+	help
+	  Allows direct SCSI access to SCSI devices on a SCSI or FibreChannel
+	  I2O controller. You can use both the SCSI and Block OSM together if
+	  you wish. To access a RAID array, you must use the Block OSM driver.
+	  But you could use the SCSI OSM driver to monitor the single disks.
+
+	  To compile this support as a module, choose M here: the
+	  module will be called i2o_scsi.
+
+config I2O_PROC
+	tristate "I2O /proc support"
+	depends on I2O
+	help
+	  If you say Y here and to "/proc file system support", you will be
+	  able to read I2O related information from the virtual directory
+	  /proc/i2o.
+
+	  To compile this support as a module, choose M here: the
+	  module will be called i2o_proc.
+
+endmenu
+
diff --git a/drivers/message/i2o/Makefile b/drivers/message/i2o/Makefile
new file mode 100644
index 000000000000..aabc6cdc3fce
--- /dev/null
+++ b/drivers/message/i2o/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile for the kernel I2O OSM.
+#
+# Note : at this point, these files are compiled on all systems.
+# In the future, some of these should be built conditionally.
+#
+
+i2o_core-y		+= iop.o driver.o device.o debug.o pci.o exec-osm.o
+obj-$(CONFIG_I2O)	+= i2o_core.o
+obj-$(CONFIG_I2O_CONFIG)+= i2o_config.o
+obj-$(CONFIG_I2O_BLOCK)	+= i2o_block.o
+obj-$(CONFIG_I2O_SCSI)	+= i2o_scsi.o
+obj-$(CONFIG_I2O_PROC)	+= i2o_proc.o
diff --git a/drivers/message/i2o/README b/drivers/message/i2o/README
new file mode 100644
index 000000000000..a81f851f7b5d
--- /dev/null
+++ b/drivers/message/i2o/README
@@ -0,0 +1,98 @@
+
+	Linux I2O Support	(c) Copyright 1999 Red Hat Software
+					and others.
+
+	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.
+
+AUTHORS (so far)
+
+Alan Cox, Building Number Three Ltd.
+	Core code, SCSI and Block OSMs
+
+Steve Ralston, LSI Logic Corp.
+	Debugging SCSI and Block OSM
+
+Deepak Saxena, Intel Corp.
+	Various core/block extensions
+	/proc interface, bug fixes
+	Ioctl interfaces for control
+	Debugging LAN OSM
+
+Philip Rumpf
+	Fixed assorted dumb SMP locking bugs
+
+Juha Sievanen, University of Helsinki Finland
+	LAN OSM code
+	/proc interface to LAN class
+	Bug fixes
+	Core code extensions
+
+Auvo Häkkinen, University of Helsinki Finland
+	LAN OSM code
+	/Proc interface to LAN class
+	Bug fixes
+	Core code extensions
+
+Taneli Vähäkangas, University of Helsinki Finland
+	Fixes to i2o_config
+
+CREDITS
+
+	This work was made possible by 
+
+Red Hat Software
+	Funding for the Building #3 part of the project
+
+Symbios Logic (Now LSI)
+	Host adapters, hints, known to work platforms when I hit
+	compatibility problems
+
+BoxHill Corporation
+	Loan of initial FibreChannel disk array used for development work.
+
+European Comission
+	Funding the work done by the University of Helsinki
+
+SysKonnect
+        Loan of FDDI and Gigabit Ethernet cards
+
+ASUSTeK
+        Loan of I2O motherboard 
+
+STATUS:
+
+o	The core setup works within limits.
+o	The scsi layer seems to almost work. 
+           I'm still chasing down the hang bug.
+o	The block OSM is mostly functional
+o	LAN OSM works with FDDI and Ethernet cards.
+
+TO DO:
+
+General:
+o	Provide hidden address space if asked
+o	Long term message flow control
+o	PCI IOP's without interrupts are not supported yet
+o	Push FAIL handling into the core
+o	DDM control interfaces for module load etc
+o       Add I2O 2.0 support (Deffered to 2.5 kernel)
+
+Block:
+o	Multiple major numbers
+o	Read ahead and cache handling stuff. Talk to Ingo and people
+o	Power management
+o	Finish Media changers
+
+SCSI:
+o	Find the right way to associate drives/luns/busses
+
+Lan:	
+o	Performance tuning
+o	Test Fibre Channel code
+
+Tape:
+o	Anyone seen anything implementing this ?
+           (D.S: Will attempt to do so if spare cycles permit)
diff --git a/drivers/message/i2o/README.ioctl b/drivers/message/i2o/README.ioctl
new file mode 100644
index 000000000000..73dd084c0e98
--- /dev/null
+++ b/drivers/message/i2o/README.ioctl
@@ -0,0 +1,394 @@
+
+Linux I2O User Space Interface
+rev 0.3 - 04/20/99
+
+=============================================================================
+Originally written by Deepak Saxena(deepak@plexity.net)
+Currently maintained by Deepak Saxena(deepak@plexity.net)
+=============================================================================
+
+I. Introduction
+
+The Linux I2O subsystem provides a set of ioctl() commands that can be
+utilized by user space applications to communicate with IOPs and devices
+on individual IOPs. This document defines the specific ioctl() commands
+that are available to the user and provides examples of their uses.
+
+This document assumes the reader is familiar with or has access to the 
+I2O specification as no I2O message parameters are outlined.  For information 
+on the specification, see http://www.i2osig.org
+
+This document and the I2O user space interface are currently maintained
+by Deepak Saxena.  Please send all comments, errata, and bug fixes to
+deepak@csociety.purdue.edu
+
+II. IOP Access
+
+Access to the I2O subsystem is provided through the device file named 
+/dev/i2o/ctl.  This file is a character file with major number 10 and minor
+number 166.  It can be created through the following command:
+
+   mknod /dev/i2o/ctl c 10 166
+
+III. Determining the IOP Count
+
+   SYNOPSIS 
+
+   ioctl(fd, I2OGETIOPS,  int *count);
+
+   u8 count[MAX_I2O_CONTROLLERS];
+
+   DESCRIPTION
+
+   This function returns the system's active IOP table.  count should
+   point to a buffer containing MAX_I2O_CONTROLLERS entries.  Upon 
+   returning, each entry will contain a non-zero value if the given
+   IOP unit is active, and NULL if it is inactive or non-existent.
+
+   RETURN VALUE.
+
+   Returns 0 if no errors occur, and -1 otherwise.  If an error occurs,
+   errno is set appropriately:
+
+     EFAULT   Invalid user space pointer was passed
+
+IV. Getting Hardware Resource Table
+
+   SYNOPSIS 
+ 
+   ioctl(fd, I2OHRTGET, struct i2o_cmd_hrt *hrt);
+
+      struct i2o_cmd_hrtlct
+      {
+         u32   iop;      /* IOP unit number */
+         void  *resbuf;  /* Buffer for result */
+         u32   *reslen;  /* Buffer length in bytes */
+      };
+
+   DESCRIPTION
+
+   This function returns the Hardware Resource Table of the IOP specified 
+   by hrt->iop in the buffer pointed to by hrt->resbuf. The actual size of 
+   the data is written into *(hrt->reslen).
+
+   RETURNS
+
+   This function returns 0 if no errors occur. If an error occurs, -1 
+   is returned and errno is set appropriately:
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ENOBUFS     Buffer not large enough.  If this occurs, the required
+                  buffer length is written into *(hrt->reslen)
+  
+V. Getting Logical Configuration Table
+   
+   SYNOPSIS 
+ 
+   ioctl(fd, I2OLCTGET, struct i2o_cmd_lct *lct);
+
+      struct i2o_cmd_hrtlct
+      {
+         u32   iop;      /* IOP unit number */
+         void  *resbuf;  /* Buffer for result */
+         u32   *reslen;  /* Buffer length in bytes */
+      };
+
+   DESCRIPTION
+
+   This function returns the Logical Configuration Table of the IOP specified
+   by lct->iop in the buffer pointed to by lct->resbuf. The actual size of 
+   the data is written into *(lct->reslen).
+
+   RETURNS
+
+   This function returns 0 if no errors occur. If an error occurs, -1 
+   is returned and errno is set appropriately:
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ENOBUFS     Buffer not large enough.  If this occurs, the required
+                  buffer length is written into *(lct->reslen)
+
+VI. Settting Parameters
+   
+   SYNOPSIS 
+ 
+   ioctl(fd, I2OPARMSET, struct i2o_parm_setget *ops);
+
+      struct i2o_cmd_psetget
+      {
+         u32   iop;      /* IOP unit number */
+         u32   tid;      /* Target device TID */
+         void  *opbuf;   /* Operation List buffer */
+         u32   oplen;    /* Operation List buffer length in bytes */
+         void  *resbuf;  /* Result List buffer */
+         u32   *reslen;  /* Result List buffer length in bytes */
+      };
+
+   DESCRIPTION
+
+   This function posts a UtilParamsSet message to the device identified
+   by ops->iop and ops->tid.  The operation list for the message is 
+   sent through the ops->opbuf buffer, and the result list is written
+   into the buffer pointed to by ops->resbuf.  The number of bytes 
+   written is placed into *(ops->reslen). 
+
+   RETURNS
+
+   The return value is the size in bytes of the data written into
+   ops->resbuf if no errors occur.  If an error occurs, -1 is returned 
+   and errno is set appropriatly:
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ENOBUFS     Buffer not large enough.  If this occurs, the required
+                  buffer length is written into *(ops->reslen)
+      ETIMEDOUT   Timeout waiting for reply message
+      ENOMEM      Kernel memory allocation error
+
+   A return value of 0 does not mean that the value was actually
+   changed properly on the IOP.  The user should check the result
+   list to determine the specific status of the transaction.
+
+VII. Getting Parameters
+   
+   SYNOPSIS 
+ 
+   ioctl(fd, I2OPARMGET, struct i2o_parm_setget *ops);
+
+      struct i2o_parm_setget
+      {
+         u32   iop;      /* IOP unit number */
+         u32   tid;      /* Target device TID */
+         void  *opbuf;   /* Operation List buffer */
+         u32   oplen;    /* Operation List buffer length in bytes */
+         void  *resbuf;  /* Result List buffer */
+         u32   *reslen;  /* Result List buffer length in bytes */
+      };
+
+   DESCRIPTION
+
+   This function posts a UtilParamsGet message to the device identified
+   by ops->iop and ops->tid.  The operation list for the message is 
+   sent through the ops->opbuf buffer, and the result list is written
+   into the buffer pointed to by ops->resbuf.  The actual size of data
+   written is placed into *(ops->reslen).
+
+   RETURNS
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ENOBUFS     Buffer not large enough.  If this occurs, the required
+                  buffer length is written into *(ops->reslen)
+      ETIMEDOUT   Timeout waiting for reply message
+      ENOMEM      Kernel memory allocation error
+
+   A return value of 0 does not mean that the value was actually
+   properly retreived.  The user should check the result list 
+   to determine the specific status of the transaction.
+
+VIII. Downloading Software
+   
+   SYNOPSIS 
+ 
+   ioctl(fd, I2OSWDL, struct i2o_sw_xfer *sw);
+
+      struct i2o_sw_xfer
+      {
+         u32   iop;       /* IOP unit number */
+         u8    flags;     /* DownloadFlags field */
+         u8    sw_type;   /* Software type */
+         u32   sw_id;     /* Software ID */
+         void  *buf;      /* Pointer to software buffer */
+         u32   *swlen;    /* Length of software buffer */        
+         u32   *maxfrag;  /* Number of fragments */
+         u32   *curfrag;  /* Current fragment number */
+      };
+
+   DESCRIPTION
+
+   This function downloads a software fragment pointed by sw->buf
+   to the iop identified by sw->iop. The DownloadFlags, SwID, SwType
+   and SwSize fields of the ExecSwDownload message are filled in with
+   the values of sw->flags, sw->sw_id, sw->sw_type and *(sw->swlen).
+
+   The fragments _must_ be sent in order and be 8K in size. The last
+   fragment _may_ be shorter, however. The kernel will compute its
+   size based on information in the sw->swlen field.
+
+   Please note that SW transfers can take a long time.
+
+   RETURNS
+
+   This function returns 0 no errors occur. If an error occurs, -1 
+   is returned and errno is set appropriatly:
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ETIMEDOUT   Timeout waiting for reply message
+      ENOMEM      Kernel memory allocation error
+
+IX. Uploading Software
+   
+   SYNOPSIS 
+
+   ioctl(fd, I2OSWUL, struct i2o_sw_xfer *sw);
+
+      struct i2o_sw_xfer
+      {
+         u32   iop;      /* IOP unit number */
+         u8    flags; 	 /* UploadFlags */
+         u8    sw_type;  /* Software type */
+         u32   sw_id;    /* Software ID */
+         void  *buf;     /* Pointer to software buffer */
+         u32   *swlen;   /* Length of software buffer */        
+         u32   *maxfrag; /* Number of fragments */
+         u32   *curfrag; /* Current fragment number */
+      };
+
+   DESCRIPTION
+
+   This function uploads a software fragment from the IOP identified
+   by sw->iop, sw->sw_type, sw->sw_id and optionally sw->swlen fields.
+   The UploadFlags, SwID, SwType and SwSize fields of the ExecSwUpload
+   message are filled in with the values of sw->flags, sw->sw_id,
+   sw->sw_type and *(sw->swlen).
+
+   The fragments _must_ be requested in order and be 8K in size. The
+   user is responsible for allocating memory pointed by sw->buf. The
+   last fragment _may_ be shorter.
+
+   Please note that SW transfers can take a long time.
+
+   RETURNS
+
+   This function returns 0 if no errors occur.  If an error occurs, -1
+   is returned and errno is set appropriatly:
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ETIMEDOUT   Timeout waiting for reply message
+      ENOMEM      Kernel memory allocation error
+         
+X. Removing Software
+   
+   SYNOPSIS 
+ 
+   ioctl(fd, I2OSWDEL, struct i2o_sw_xfer *sw);
+
+      struct i2o_sw_xfer
+      {
+         u32   iop;      /* IOP unit number */
+         u8    flags; 	 /* RemoveFlags */
+         u8    sw_type;  /* Software type */
+         u32   sw_id;    /* Software ID */
+         void  *buf;     /* Unused */
+         u32   *swlen;   /* Length of the software data */        
+         u32   *maxfrag; /* Unused */
+         u32   *curfrag; /* Unused */
+      };
+
+   DESCRIPTION
+
+   This function removes software from the IOP identified by sw->iop.
+   The RemoveFlags, SwID, SwType and SwSize fields of the ExecSwRemove message 
+   are filled in with the values of sw->flags, sw->sw_id, sw->sw_type and 
+   *(sw->swlen). Give zero in *(sw->len) if the value is unknown. IOP uses 
+   *(sw->swlen) value to verify correct identication of the module to remove. 
+   The actual size of the module is written into *(sw->swlen).
+
+   RETURNS
+
+   This function returns 0 if no errors occur.  If an error occurs, -1
+   is returned and errno is set appropriatly:
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ETIMEDOUT   Timeout waiting for reply message
+      ENOMEM      Kernel memory allocation error
+
+X. Validating Configuration
+
+   SYNOPSIS
+
+   ioctl(fd, I2OVALIDATE, int *iop);
+	u32 iop;
+
+   DESCRIPTION
+
+   This function posts an ExecConfigValidate message to the controller
+   identified by iop. This message indicates that the current
+   configuration is accepted. The iop changes the status of suspect drivers 
+   to valid and may delete old drivers from its store.
+
+   RETURNS
+
+   This function returns 0 if no erro occur.  If an error occurs, -1 is
+   returned and errno is set appropriatly:
+
+      ETIMEDOUT   Timeout waiting for reply message
+      ENXIO       Invalid IOP number
+
+XI. Configuration Dialog
+   
+   SYNOPSIS 
+ 
+   ioctl(fd, I2OHTML, struct i2o_html *htquery);
+      struct i2o_html
+      {
+         u32   iop;      /* IOP unit number */
+         u32   tid;      /* Target device ID */
+         u32   page;     /* HTML page */
+         void  *resbuf;  /* Buffer for reply HTML page */
+         u32   *reslen;  /* Length in bytes of reply buffer */
+         void  *qbuf;    /* Pointer to HTTP query string */
+         u32   qlen;     /* Length in bytes of query string buffer */        
+      };
+
+   DESCRIPTION
+
+   This function posts an UtilConfigDialog message to the device identified
+   by htquery->iop and htquery->tid.  The requested HTML page number is 
+   provided by the htquery->page field, and the resultant data is stored 
+   in the buffer pointed to by htquery->resbuf.  If there is an HTTP query 
+   string that is to be sent to the device, it should be sent in the buffer
+   pointed to by htquery->qbuf.  If there is no query string, this field
+   should be set to NULL. The actual size of the reply received is written
+   into *(htquery->reslen).
+  
+   RETURNS
+
+   This function returns 0 if no error occur. If an error occurs, -1
+   is returned and errno is set appropriatly:
+
+      EFAULT      Invalid user space pointer was passed
+      ENXIO       Invalid IOP number
+      ENOBUFS     Buffer not large enough.  If this occurs, the required
+                  buffer length is written into *(ops->reslen)
+      ETIMEDOUT   Timeout waiting for reply message
+      ENOMEM      Kernel memory allocation error
+
+XII. Events
+
+    In the process of determining this.  Current idea is to have use
+    the select() interface to allow user apps to periodically poll
+    the /dev/i2o/ctl device for events.  When select() notifies the user
+    that an event is available, the user would call read() to retrieve
+    a list of all the events that are pending for the specific device.
+
+=============================================================================
+Revision History
+=============================================================================
+
+Rev 0.1 - 04/01/99
+- Initial revision
+
+Rev 0.2 - 04/06/99
+- Changed return values to match UNIX ioctl() standard.  Only return values
+  are 0 and -1.  All errors are reported through errno.
+- Added summary of proposed possible event interfaces
+
+Rev 0.3 - 04/20/99
+- Changed all ioctls() to use pointers to user data instead of actual data
+- Updated error values to match the code
diff --git a/drivers/message/i2o/debug.c b/drivers/message/i2o/debug.c
new file mode 100644
index 000000000000..2a5d478fc60e
--- /dev/null
+++ b/drivers/message/i2o/debug.c
@@ -0,0 +1,481 @@
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/i2o.h>
+
+extern struct i2o_driver **i2o_drivers;
+extern unsigned int i2o_max_drivers;
+static void i2o_report_util_cmd(u8 cmd);
+static void i2o_report_exec_cmd(u8 cmd);
+static void i2o_report_fail_status(u8 req_status, u32 * msg);
+static void i2o_report_common_status(u8 req_status);
+static void i2o_report_common_dsc(u16 detailed_status);
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Report Cmd name, Request status, Detailed Status.
+ */
+void i2o_report_status(const char *severity, const char *str,
+		       struct i2o_message *m)
+{
+	u32 *msg = (u32 *) m;
+	u8 cmd = (msg[1] >> 24) & 0xFF;
+	u8 req_status = (msg[4] >> 24) & 0xFF;
+	u16 detailed_status = msg[4] & 0xFFFF;
+	//struct i2o_driver *h = i2o_drivers[msg[2] & (i2o_max_drivers-1)];
+
+	if (cmd == I2O_CMD_UTIL_EVT_REGISTER)
+		return;		// No status in this reply
+
+	printk(KERN_DEBUG "%s%s: ", severity, str);
+
+	if (cmd < 0x1F)		// Utility cmd
+		i2o_report_util_cmd(cmd);
+
+	else if (cmd >= 0xA0 && cmd <= 0xEF)	// Executive cmd
+		i2o_report_exec_cmd(cmd);
+	else
+		printk(KERN_DEBUG "Cmd = %0#2x, ", cmd);	// Other cmds
+
+	if (msg[0] & MSG_FAIL) {
+		i2o_report_fail_status(req_status, msg);
+		return;
+	}
+
+	i2o_report_common_status(req_status);
+
+	if (cmd < 0x1F || (cmd >= 0xA0 && cmd <= 0xEF))
+		i2o_report_common_dsc(detailed_status);
+	else
+		printk(KERN_DEBUG " / DetailedStatus = %0#4x.\n",
+		       detailed_status);
+}
+
+/* Used to dump a message to syslog during debugging */
+void i2o_dump_message(struct i2o_message *m)
+{
+#ifdef DEBUG
+	u32 *msg = (u32 *) m;
+	int i;
+	printk(KERN_INFO "Dumping I2O message size %d @ %p\n",
+	       msg[0] >> 16 & 0xffff, msg);
+	for (i = 0; i < ((msg[0] >> 16) & 0xffff); i++)
+		printk(KERN_INFO "  msg[%d] = %0#10x\n", i, msg[i]);
+#endif
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following fail status are common to all classes.
+ * The preserved message must be handled in the reply handler.
+ */
+static void i2o_report_fail_status(u8 req_status, u32 * msg)
+{
+	static char *FAIL_STATUS[] = {
+		"0x80",		/* not used */
+		"SERVICE_SUSPENDED",	/* 0x81 */
+		"SERVICE_TERMINATED",	/* 0x82 */
+		"CONGESTION",
+		"FAILURE",
+		"STATE_ERROR",
+		"TIME_OUT",
+		"ROUTING_FAILURE",
+		"INVALID_VERSION",
+		"INVALID_OFFSET",
+		"INVALID_MSG_FLAGS",
+		"FRAME_TOO_SMALL",
+		"FRAME_TOO_LARGE",
+		"INVALID_TARGET_ID",
+		"INVALID_INITIATOR_ID",
+		"INVALID_INITIATOR_CONTEX",	/* 0x8F */
+		"UNKNOWN_FAILURE"	/* 0xFF */
+	};
+
+	if (req_status == I2O_FSC_TRANSPORT_UNKNOWN_FAILURE)
+		printk(KERN_DEBUG "TRANSPORT_UNKNOWN_FAILURE (%0#2x)\n.",
+		       req_status);
+	else
+		printk(KERN_DEBUG "TRANSPORT_%s.\n",
+		       FAIL_STATUS[req_status & 0x0F]);
+
+	/* Dump some details */
+
+	printk(KERN_ERR "  InitiatorId = %d, TargetId = %d\n",
+	       (msg[1] >> 12) & 0xFFF, msg[1] & 0xFFF);
+	printk(KERN_ERR "  LowestVersion = 0x%02X, HighestVersion = 0x%02X\n",
+	       (msg[4] >> 8) & 0xFF, msg[4] & 0xFF);
+	printk(KERN_ERR "  FailingHostUnit = 0x%04X,  FailingIOP = 0x%03X\n",
+	       msg[5] >> 16, msg[5] & 0xFFF);
+
+	printk(KERN_ERR "  Severity:  0x%02X ", (msg[4] >> 16) & 0xFF);
+	if (msg[4] & (1 << 16))
+		printk(KERN_DEBUG "(FormatError), "
+		       "this msg can never be delivered/processed.\n");
+	if (msg[4] & (1 << 17))
+		printk(KERN_DEBUG "(PathError), "
+		       "this msg can no longer be delivered/processed.\n");
+	if (msg[4] & (1 << 18))
+		printk(KERN_DEBUG "(PathState), "
+		       "the system state does not allow delivery.\n");
+	if (msg[4] & (1 << 19))
+		printk(KERN_DEBUG
+		       "(Congestion), resources temporarily not available;"
+		       "do not retry immediately.\n");
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following reply status are common to all classes.
+ */
+static void i2o_report_common_status(u8 req_status)
+{
+	static char *REPLY_STATUS[] = {
+		"SUCCESS",
+		"ABORT_DIRTY",
+		"ABORT_NO_DATA_TRANSFER",
+		"ABORT_PARTIAL_TRANSFER",
+		"ERROR_DIRTY",
+		"ERROR_NO_DATA_TRANSFER",
+		"ERROR_PARTIAL_TRANSFER",
+		"PROCESS_ABORT_DIRTY",
+		"PROCESS_ABORT_NO_DATA_TRANSFER",
+		"PROCESS_ABORT_PARTIAL_TRANSFER",
+		"TRANSACTION_ERROR",
+		"PROGRESS_REPORT"
+	};
+
+	if (req_status >= ARRAY_SIZE(REPLY_STATUS))
+		printk(KERN_DEBUG "RequestStatus = %0#2x", req_status);
+	else
+		printk(KERN_DEBUG "%s", REPLY_STATUS[req_status]);
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following detailed status are valid  for executive class,
+ * utility class, DDM class and for transaction error replies.
+ */
+static void i2o_report_common_dsc(u16 detailed_status)
+{
+	static char *COMMON_DSC[] = {
+		"SUCCESS",
+		"0x01",		// not used
+		"BAD_KEY",
+		"TCL_ERROR",
+		"REPLY_BUFFER_FULL",
+		"NO_SUCH_PAGE",
+		"INSUFFICIENT_RESOURCE_SOFT",
+		"INSUFFICIENT_RESOURCE_HARD",
+		"0x08",		// not used
+		"CHAIN_BUFFER_TOO_LARGE",
+		"UNSUPPORTED_FUNCTION",
+		"DEVICE_LOCKED",
+		"DEVICE_RESET",
+		"INAPPROPRIATE_FUNCTION",
+		"INVALID_INITIATOR_ADDRESS",
+		"INVALID_MESSAGE_FLAGS",
+		"INVALID_OFFSET",
+		"INVALID_PARAMETER",
+		"INVALID_REQUEST",
+		"INVALID_TARGET_ADDRESS",
+		"MESSAGE_TOO_LARGE",
+		"MESSAGE_TOO_SMALL",
+		"MISSING_PARAMETER",
+		"TIMEOUT",
+		"UNKNOWN_ERROR",
+		"UNKNOWN_FUNCTION",
+		"UNSUPPORTED_VERSION",
+		"DEVICE_BUSY",
+		"DEVICE_NOT_AVAILABLE"
+	};
+
+	if (detailed_status > I2O_DSC_DEVICE_NOT_AVAILABLE)
+		printk(KERN_DEBUG " / DetailedStatus = %0#4x.\n",
+		       detailed_status);
+	else
+		printk(KERN_DEBUG " / %s.\n", COMMON_DSC[detailed_status]);
+}
+
+/*
+ * Used for error reporting/debugging purposes
+ */
+static void i2o_report_util_cmd(u8 cmd)
+{
+	switch (cmd) {
+	case I2O_CMD_UTIL_NOP:
+		printk(KERN_DEBUG "UTIL_NOP, ");
+		break;
+	case I2O_CMD_UTIL_ABORT:
+		printk(KERN_DEBUG "UTIL_ABORT, ");
+		break;
+	case I2O_CMD_UTIL_CLAIM:
+		printk(KERN_DEBUG "UTIL_CLAIM, ");
+		break;
+	case I2O_CMD_UTIL_RELEASE:
+		printk(KERN_DEBUG "UTIL_CLAIM_RELEASE, ");
+		break;
+	case I2O_CMD_UTIL_CONFIG_DIALOG:
+		printk(KERN_DEBUG "UTIL_CONFIG_DIALOG, ");
+		break;
+	case I2O_CMD_UTIL_DEVICE_RESERVE:
+		printk(KERN_DEBUG "UTIL_DEVICE_RESERVE, ");
+		break;
+	case I2O_CMD_UTIL_DEVICE_RELEASE:
+		printk(KERN_DEBUG "UTIL_DEVICE_RELEASE, ");
+		break;
+	case I2O_CMD_UTIL_EVT_ACK:
+		printk(KERN_DEBUG "UTIL_EVENT_ACKNOWLEDGE, ");
+		break;
+	case I2O_CMD_UTIL_EVT_REGISTER:
+		printk(KERN_DEBUG "UTIL_EVENT_REGISTER, ");
+		break;
+	case I2O_CMD_UTIL_LOCK:
+		printk(KERN_DEBUG "UTIL_LOCK, ");
+		break;
+	case I2O_CMD_UTIL_LOCK_RELEASE:
+		printk(KERN_DEBUG "UTIL_LOCK_RELEASE, ");
+		break;
+	case I2O_CMD_UTIL_PARAMS_GET:
+		printk(KERN_DEBUG "UTIL_PARAMS_GET, ");
+		break;
+	case I2O_CMD_UTIL_PARAMS_SET:
+		printk(KERN_DEBUG "UTIL_PARAMS_SET, ");
+		break;
+	case I2O_CMD_UTIL_REPLY_FAULT_NOTIFY:
+		printk(KERN_DEBUG "UTIL_REPLY_FAULT_NOTIFY, ");
+		break;
+	default:
+		printk(KERN_DEBUG "Cmd = %0#2x, ", cmd);
+	}
+}
+
+/*
+ * Used for error reporting/debugging purposes
+ */
+static void i2o_report_exec_cmd(u8 cmd)
+{
+	switch (cmd) {
+	case I2O_CMD_ADAPTER_ASSIGN:
+		printk(KERN_DEBUG "EXEC_ADAPTER_ASSIGN, ");
+		break;
+	case I2O_CMD_ADAPTER_READ:
+		printk(KERN_DEBUG "EXEC_ADAPTER_READ, ");
+		break;
+	case I2O_CMD_ADAPTER_RELEASE:
+		printk(KERN_DEBUG "EXEC_ADAPTER_RELEASE, ");
+		break;
+	case I2O_CMD_BIOS_INFO_SET:
+		printk(KERN_DEBUG "EXEC_BIOS_INFO_SET, ");
+		break;
+	case I2O_CMD_BOOT_DEVICE_SET:
+		printk(KERN_DEBUG "EXEC_BOOT_DEVICE_SET, ");
+		break;
+	case I2O_CMD_CONFIG_VALIDATE:
+		printk(KERN_DEBUG "EXEC_CONFIG_VALIDATE, ");
+		break;
+	case I2O_CMD_CONN_SETUP:
+		printk(KERN_DEBUG "EXEC_CONN_SETUP, ");
+		break;
+	case I2O_CMD_DDM_DESTROY:
+		printk(KERN_DEBUG "EXEC_DDM_DESTROY, ");
+		break;
+	case I2O_CMD_DDM_ENABLE:
+		printk(KERN_DEBUG "EXEC_DDM_ENABLE, ");
+		break;
+	case I2O_CMD_DDM_QUIESCE:
+		printk(KERN_DEBUG "EXEC_DDM_QUIESCE, ");
+		break;
+	case I2O_CMD_DDM_RESET:
+		printk(KERN_DEBUG "EXEC_DDM_RESET, ");
+		break;
+	case I2O_CMD_DDM_SUSPEND:
+		printk(KERN_DEBUG "EXEC_DDM_SUSPEND, ");
+		break;
+	case I2O_CMD_DEVICE_ASSIGN:
+		printk(KERN_DEBUG "EXEC_DEVICE_ASSIGN, ");
+		break;
+	case I2O_CMD_DEVICE_RELEASE:
+		printk(KERN_DEBUG "EXEC_DEVICE_RELEASE, ");
+		break;
+	case I2O_CMD_HRT_GET:
+		printk(KERN_DEBUG "EXEC_HRT_GET, ");
+		break;
+	case I2O_CMD_ADAPTER_CLEAR:
+		printk(KERN_DEBUG "EXEC_IOP_CLEAR, ");
+		break;
+	case I2O_CMD_ADAPTER_CONNECT:
+		printk(KERN_DEBUG "EXEC_IOP_CONNECT, ");
+		break;
+	case I2O_CMD_ADAPTER_RESET:
+		printk(KERN_DEBUG "EXEC_IOP_RESET, ");
+		break;
+	case I2O_CMD_LCT_NOTIFY:
+		printk(KERN_DEBUG "EXEC_LCT_NOTIFY, ");
+		break;
+	case I2O_CMD_OUTBOUND_INIT:
+		printk(KERN_DEBUG "EXEC_OUTBOUND_INIT, ");
+		break;
+	case I2O_CMD_PATH_ENABLE:
+		printk(KERN_DEBUG "EXEC_PATH_ENABLE, ");
+		break;
+	case I2O_CMD_PATH_QUIESCE:
+		printk(KERN_DEBUG "EXEC_PATH_QUIESCE, ");
+		break;
+	case I2O_CMD_PATH_RESET:
+		printk(KERN_DEBUG "EXEC_PATH_RESET, ");
+		break;
+	case I2O_CMD_STATIC_MF_CREATE:
+		printk(KERN_DEBUG "EXEC_STATIC_MF_CREATE, ");
+		break;
+	case I2O_CMD_STATIC_MF_RELEASE:
+		printk(KERN_DEBUG "EXEC_STATIC_MF_RELEASE, ");
+		break;
+	case I2O_CMD_STATUS_GET:
+		printk(KERN_DEBUG "EXEC_STATUS_GET, ");
+		break;
+	case I2O_CMD_SW_DOWNLOAD:
+		printk(KERN_DEBUG "EXEC_SW_DOWNLOAD, ");
+		break;
+	case I2O_CMD_SW_UPLOAD:
+		printk(KERN_DEBUG "EXEC_SW_UPLOAD, ");
+		break;
+	case I2O_CMD_SW_REMOVE:
+		printk(KERN_DEBUG "EXEC_SW_REMOVE, ");
+		break;
+	case I2O_CMD_SYS_ENABLE:
+		printk(KERN_DEBUG "EXEC_SYS_ENABLE, ");
+		break;
+	case I2O_CMD_SYS_MODIFY:
+		printk(KERN_DEBUG "EXEC_SYS_MODIFY, ");
+		break;
+	case I2O_CMD_SYS_QUIESCE:
+		printk(KERN_DEBUG "EXEC_SYS_QUIESCE, ");
+		break;
+	case I2O_CMD_SYS_TAB_SET:
+		printk(KERN_DEBUG "EXEC_SYS_TAB_SET, ");
+		break;
+	default:
+		printk(KERN_DEBUG "Cmd = %#02x, ", cmd);
+	}
+}
+
+void i2o_debug_state(struct i2o_controller *c)
+{
+	printk(KERN_INFO "%s: State = ", c->name);
+	switch (((i2o_status_block *) c->status_block.virt)->iop_state) {
+	case 0x01:
+		printk(KERN_DEBUG "INIT\n");
+		break;
+	case 0x02:
+		printk(KERN_DEBUG "RESET\n");
+		break;
+	case 0x04:
+		printk(KERN_DEBUG "HOLD\n");
+		break;
+	case 0x05:
+		printk(KERN_DEBUG "READY\n");
+		break;
+	case 0x08:
+		printk(KERN_DEBUG "OPERATIONAL\n");
+		break;
+	case 0x10:
+		printk(KERN_DEBUG "FAILED\n");
+		break;
+	case 0x11:
+		printk(KERN_DEBUG "FAULTED\n");
+		break;
+	default:
+		printk(KERN_DEBUG "%x (unknown !!)\n",
+		       ((i2o_status_block *) c->status_block.virt)->iop_state);
+	}
+};
+
+void i2o_dump_hrt(struct i2o_controller *c)
+{
+	u32 *rows = (u32 *) c->hrt.virt;
+	u8 *p = (u8 *) c->hrt.virt;
+	u8 *d;
+	int count;
+	int length;
+	int i;
+	int state;
+
+	if (p[3] != 0) {
+		printk(KERN_ERR
+		       "%s: HRT table for controller is too new a version.\n",
+		       c->name);
+		return;
+	}
+
+	count = p[0] | (p[1] << 8);
+	length = p[2];
+
+	printk(KERN_INFO "%s: HRT has %d entries of %d bytes each.\n",
+	       c->name, count, length << 2);
+
+	rows += 2;
+
+	for (i = 0; i < count; i++) {
+		printk(KERN_INFO "Adapter %08X: ", rows[0]);
+		p = (u8 *) (rows + 1);
+		d = (u8 *) (rows + 2);
+		state = p[1] << 8 | p[0];
+
+		printk(KERN_DEBUG "TID %04X:[", state & 0xFFF);
+		state >>= 12;
+		if (state & (1 << 0))
+			printk(KERN_DEBUG "H");	/* Hidden */
+		if (state & (1 << 2)) {
+			printk(KERN_DEBUG "P");	/* Present */
+			if (state & (1 << 1))
+				printk(KERN_DEBUG "C");	/* Controlled */
+		}
+		if (state > 9)
+			printk(KERN_DEBUG "*");	/* Hard */
+
+		printk(KERN_DEBUG "]:");
+
+		switch (p[3] & 0xFFFF) {
+		case 0:
+			/* Adapter private bus - easy */
+			printk(KERN_DEBUG
+			       "Local bus %d: I/O at 0x%04X Mem 0x%08X", p[2],
+			       d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+		case 1:
+			/* ISA bus */
+			printk(KERN_DEBUG
+			       "ISA %d: CSN %d I/O at 0x%04X Mem 0x%08X", p[2],
+			       d[2], d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+
+		case 2:	/* EISA bus */
+			printk(KERN_DEBUG
+			       "EISA %d: Slot %d I/O at 0x%04X Mem 0x%08X",
+			       p[2], d[3], d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+
+		case 3:	/* MCA bus */
+			printk(KERN_DEBUG
+			       "MCA %d: Slot %d I/O at 0x%04X Mem 0x%08X", p[2],
+			       d[3], d[1] << 8 | d[0], *(u32 *) (d + 4));
+			break;
+
+		case 4:	/* PCI bus */
+			printk(KERN_DEBUG
+			       "PCI %d: Bus %d Device %d Function %d", p[2],
+			       d[2], d[1], d[0]);
+			break;
+
+		case 0x80:	/* Other */
+		default:
+			printk(KERN_DEBUG "Unsupported bus type.");
+			break;
+		}
+		printk(KERN_DEBUG "\n");
+		rows += length;
+	}
+}
+
+EXPORT_SYMBOL(i2o_dump_message);
diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c
new file mode 100644
index 000000000000..eb907e87bc7b
--- /dev/null
+++ b/drivers/message/i2o/device.c
@@ -0,0 +1,634 @@
+/*
+ *	Functions to handle I2O devices
+ *
+ *	Copyright (C) 2004	Markus Lidel <Markus.Lidel@shadowconnect.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.
+ *
+ *	Fixes/additions:
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>
+ *			initial version.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+#include <linux/delay.h>
+
+/* Exec OSM functions */
+extern struct bus_type i2o_bus_type;
+
+/**
+ *	i2o_device_issue_claim - claim or release a device
+ *	@dev: I2O device to claim or release
+ *	@cmd: claim or release command
+ *	@type: type of claim
+ *
+ *	Issue I2O UTIL_CLAIM or UTIL_RELEASE messages. The message to be sent
+ *	is set by cmd. dev is the I2O device which should be claim or
+ *	released and the type is the claim type (see the I2O spec).
+ *
+ *	Returs 0 on success or negative error code on failure.
+ */
+static inline int i2o_device_issue_claim(struct i2o_device *dev, u32 cmd,
+					 u32 type)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+
+	m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(cmd << 24 | HOST_TID << 12 | dev->lct_data.tid, &msg->u.head[1]);
+	writel(type, &msg->body[0]);
+
+	return i2o_msg_post_wait(dev->iop, m, 60);
+};
+
+/**
+ * 	i2o_device_claim - claim a device for use by an OSM
+ *	@dev: I2O device to claim
+ *	@drv: I2O driver which wants to claim the device
+ *
+ *	Do the leg work to assign a device to a given OSM. If the claim succeed
+ *	the owner of the rimary. If the attempt fails a negative errno code
+ *	is returned. On success zero is returned.
+ */
+int i2o_device_claim(struct i2o_device *dev)
+{
+	int rc = 0;
+
+	down(&dev->lock);
+
+	rc = i2o_device_issue_claim(dev, I2O_CMD_UTIL_CLAIM, I2O_CLAIM_PRIMARY);
+	if (!rc)
+		pr_debug("i2o: claim of device %d succeded\n",
+			 dev->lct_data.tid);
+	else
+		pr_debug("i2o: claim of device %d failed %d\n",
+			 dev->lct_data.tid, rc);
+
+	up(&dev->lock);
+
+	return rc;
+};
+
+/**
+ *	i2o_device_claim_release - release a device that the OSM is using
+ *	@dev: device to release
+ *	@drv: driver which claimed the device
+ *
+ *	Drop a claim by an OSM on a given I2O device.
+ *
+ *	AC - some devices seem to want to refuse an unclaim until they have
+ *	finished internal processing. It makes sense since you don't want a
+ *	new device to go reconfiguring the entire system until you are done.
+ *	Thus we are prepared to wait briefly.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int i2o_device_claim_release(struct i2o_device *dev)
+{
+	int tries;
+	int rc = 0;
+
+	down(&dev->lock);
+
+	/*
+	 *      If the controller takes a nonblocking approach to
+	 *      releases we have to sleep/poll for a few times.
+	 */
+	for (tries = 0; tries < 10; tries++) {
+		rc = i2o_device_issue_claim(dev, I2O_CMD_UTIL_RELEASE,
+					    I2O_CLAIM_PRIMARY);
+		if (!rc)
+			break;
+
+		ssleep(1);
+	}
+
+	if (!rc)
+		pr_debug("i2o: claim release of device %d succeded\n",
+			 dev->lct_data.tid);
+	else
+		pr_debug("i2o: claim release of device %d failed %d\n",
+			 dev->lct_data.tid, rc);
+
+	up(&dev->lock);
+
+	return rc;
+};
+
+/**
+ *	i2o_device_release - release the memory for a I2O device
+ *	@dev: I2O device which should be released
+ *
+ *	Release the allocated memory. This function is called if refcount of
+ *	device reaches 0 automatically.
+ */
+static void i2o_device_release(struct device *dev)
+{
+	struct i2o_device *i2o_dev = to_i2o_device(dev);
+
+	pr_debug("i2o: device %s released\n", dev->bus_id);
+
+	kfree(i2o_dev);
+};
+
+/**
+ *	i2o_device_class_release - Remove I2O device attributes
+ *	@cd: I2O class device which is added to the I2O device class
+ *
+ *	Removes attributes from the I2O device again. Also search each device
+ *	on the controller for I2O devices which refert to this device as parent
+ *	or user and remove this links also.
+ */
+static void i2o_device_class_release(struct class_device *cd)
+{
+	struct i2o_device *i2o_dev, *tmp;
+	struct i2o_controller *c;
+
+	i2o_dev = to_i2o_device(cd->dev);
+	c = i2o_dev->iop;
+
+	sysfs_remove_link(&i2o_dev->device.kobj, "parent");
+	sysfs_remove_link(&i2o_dev->device.kobj, "user");
+
+	list_for_each_entry(tmp, &c->devices, list) {
+		if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+			sysfs_remove_link(&tmp->device.kobj, "parent");
+		if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+			sysfs_remove_link(&tmp->device.kobj, "user");
+	}
+};
+
+/* I2O device class */
+static struct class i2o_device_class = {
+	.name = "i2o_device",
+	.release = i2o_device_class_release
+};
+
+/**
+ *	i2o_device_alloc - Allocate a I2O device and initialize it
+ *
+ *	Allocate the memory for a I2O device and initialize locks and lists
+ *
+ *	Returns the allocated I2O device or a negative error code if the device
+ *	could not be allocated.
+ */
+static struct i2o_device *i2o_device_alloc(void)
+{
+	struct i2o_device *dev;
+
+	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	memset(dev, 0, sizeof(*dev));
+
+	INIT_LIST_HEAD(&dev->list);
+	init_MUTEX(&dev->lock);
+
+	dev->device.bus = &i2o_bus_type;
+	dev->device.release = &i2o_device_release;
+	dev->classdev.class = &i2o_device_class;
+	dev->classdev.dev = &dev->device;
+
+	return dev;
+};
+
+/**
+ *	i2o_device_add - allocate a new I2O device and add it to the IOP
+ *	@iop: I2O controller where the device is on
+ *	@entry: LCT entry of the I2O device
+ *
+ *	Allocate a new I2O device and initialize it with the LCT entry. The
+ *	device is appended to the device list of the controller.
+ *
+ *	Returns a pointer to the I2O device on success or negative error code
+ *	on failure.
+ */
+static struct i2o_device *i2o_device_add(struct i2o_controller *c,
+					 i2o_lct_entry * entry)
+{
+	struct i2o_device *dev;
+
+	dev = i2o_device_alloc();
+	if (IS_ERR(dev)) {
+		printk(KERN_ERR "i2o: unable to allocate i2o device\n");
+		return dev;
+	}
+
+	dev->lct_data = *entry;
+
+	snprintf(dev->device.bus_id, BUS_ID_SIZE, "%d:%03x", c->unit,
+		 dev->lct_data.tid);
+
+	snprintf(dev->classdev.class_id, BUS_ID_SIZE, "%d:%03x", c->unit,
+		 dev->lct_data.tid);
+
+	dev->iop = c;
+	dev->device.parent = &c->device;
+
+	device_register(&dev->device);
+
+	list_add_tail(&dev->list, &c->devices);
+
+	class_device_register(&dev->classdev);
+
+	i2o_driver_notify_device_add_all(dev);
+
+	pr_debug("i2o: device %s added\n", dev->device.bus_id);
+
+	return dev;
+};
+
+/**
+ *	i2o_device_remove - remove an I2O device from the I2O core
+ *	@dev: I2O device which should be released
+ *
+ *	Is used on I2O controller removal or LCT modification, when the device
+ *	is removed from the system. Note that the device could still hang
+ *	around until the refcount reaches 0.
+ */
+void i2o_device_remove(struct i2o_device *i2o_dev)
+{
+	i2o_driver_notify_device_remove_all(i2o_dev);
+	class_device_unregister(&i2o_dev->classdev);
+	list_del(&i2o_dev->list);
+	device_unregister(&i2o_dev->device);
+};
+
+/**
+ *	i2o_device_parse_lct - Parse a previously fetched LCT and create devices
+ *	@c: I2O controller from which the LCT should be parsed.
+ *
+ *	The Logical Configuration Table tells us what we can talk to on the
+ *	board. For every entry we create an I2O device, which is registered in
+ *	the I2O core.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int i2o_device_parse_lct(struct i2o_controller *c)
+{
+	struct i2o_device *dev, *tmp;
+	i2o_lct *lct;
+	int i;
+	int max;
+
+	down(&c->lct_lock);
+
+	if (c->lct)
+		kfree(c->lct);
+
+	lct = c->dlct.virt;
+
+	c->lct = kmalloc(lct->table_size * 4, GFP_KERNEL);
+	if (!c->lct) {
+		up(&c->lct_lock);
+		return -ENOMEM;
+	}
+
+	if (lct->table_size * 4 > c->dlct.len) {
+		memcpy_fromio(c->lct, c->dlct.virt, c->dlct.len);
+		up(&c->lct_lock);
+		return -EAGAIN;
+	}
+
+	memcpy_fromio(c->lct, c->dlct.virt, lct->table_size * 4);
+
+	lct = c->lct;
+
+	max = (lct->table_size - 3) / 9;
+
+	pr_debug("%s: LCT has %d entries (LCT size: %d)\n", c->name, max,
+		 lct->table_size);
+
+	/* remove devices, which are not in the LCT anymore */
+	list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+		int found = 0;
+
+		for (i = 0; i < max; i++) {
+			if (lct->lct_entry[i].tid == dev->lct_data.tid) {
+				found = 1;
+				break;
+			}
+		}
+
+		if (!found)
+			i2o_device_remove(dev);
+	}
+
+	/* add new devices, which are new in the LCT */
+	for (i = 0; i < max; i++) {
+		int found = 0;
+
+		list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+			if (lct->lct_entry[i].tid == dev->lct_data.tid) {
+				found = 1;
+				break;
+			}
+		}
+
+		if (!found)
+			i2o_device_add(c, &lct->lct_entry[i]);
+	}
+	up(&c->lct_lock);
+
+	return 0;
+};
+
+/**
+ *	i2o_device_class_show_class_id - Displays class id of I2O device
+ *	@cd: class device of which the class id should be displayed
+ *	@buf: buffer into which the class id should be printed
+ *
+ *	Returns the number of bytes which are printed into the buffer.
+ */
+static ssize_t i2o_device_class_show_class_id(struct class_device *cd,
+					      char *buf)
+{
+	struct i2o_device *dev = to_i2o_device(cd->dev);
+
+	sprintf(buf, "%03x\n", dev->lct_data.class_id);
+	return strlen(buf) + 1;
+};
+
+/**
+ *	i2o_device_class_show_tid - Displays TID of I2O device
+ *	@cd: class device of which the TID should be displayed
+ *	@buf: buffer into which the class id should be printed
+ *
+ *	Returns the number of bytes which are printed into the buffer.
+ */
+static ssize_t i2o_device_class_show_tid(struct class_device *cd, char *buf)
+{
+	struct i2o_device *dev = to_i2o_device(cd->dev);
+
+	sprintf(buf, "%03x\n", dev->lct_data.tid);
+	return strlen(buf) + 1;
+};
+
+/* I2O device class attributes */
+static CLASS_DEVICE_ATTR(class_id, S_IRUGO, i2o_device_class_show_class_id,
+			 NULL);
+static CLASS_DEVICE_ATTR(tid, S_IRUGO, i2o_device_class_show_tid, NULL);
+
+/**
+ *	i2o_device_class_add - Adds attributes to the I2O device
+ *	@cd: I2O class device which is added to the I2O device class
+ *
+ *	This function get called when a I2O device is added to the class. It
+ *	creates the attributes for each device and creates user/parent symlink
+ *	if necessary.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_device_class_add(struct class_device *cd)
+{
+	struct i2o_device *i2o_dev, *tmp;
+	struct i2o_controller *c;
+
+	i2o_dev = to_i2o_device(cd->dev);
+	c = i2o_dev->iop;
+
+	class_device_create_file(cd, &class_device_attr_class_id);
+	class_device_create_file(cd, &class_device_attr_tid);
+
+	/* create user entries for this device */
+	tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
+	if (tmp)
+		sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
+				  "user");
+
+	/* create user entries refering to this device */
+	list_for_each_entry(tmp, &c->devices, list)
+	    if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+		sysfs_create_link(&tmp->device.kobj,
+				  &i2o_dev->device.kobj, "user");
+
+	/* create parent entries for this device */
+	tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
+	if (tmp)
+		sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
+				  "parent");
+
+	/* create parent entries refering to this device */
+	list_for_each_entry(tmp, &c->devices, list)
+	    if (tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+		sysfs_create_link(&tmp->device.kobj,
+				  &i2o_dev->device.kobj, "parent");
+
+	return 0;
+};
+
+/* I2O device class interface */
+static struct class_interface i2o_device_class_interface = {
+	.class = &i2o_device_class,
+	.add = i2o_device_class_add
+};
+
+/*
+ *	Run time support routines
+ */
+
+/*	Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
+ *
+ *	This function can be used for all UtilParamsGet/Set operations.
+ *	The OperationList is given in oplist-buffer,
+ *	and results are returned in reslist-buffer.
+ *	Note that the minimum sized reslist is 8 bytes and contains
+ *	ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
+ */
+
+int i2o_parm_issue(struct i2o_device *i2o_dev, int cmd, void *oplist,
+		   int oplen, void *reslist, int reslen)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	u32 *res32 = (u32 *) reslist;
+	u32 *restmp = (u32 *) reslist;
+	int len = 0;
+	int i = 0;
+	int rc;
+	struct i2o_dma res;
+	struct i2o_controller *c = i2o_dev->iop;
+	struct device *dev = &c->pdev->dev;
+
+	res.virt = NULL;
+
+	if (i2o_dma_alloc(dev, &res, reslen, GFP_KERNEL))
+		return -ENOMEM;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY) {
+		i2o_dma_free(dev, &res);
+		return -ETIMEDOUT;
+	}
+
+	i = 0;
+	writel(cmd << 24 | HOST_TID << 12 | i2o_dev->lct_data.tid,
+	       &msg->u.head[1]);
+	writel(0, &msg->body[i++]);
+	writel(0x4C000000 | oplen, &msg->body[i++]);	/* OperationList */
+	memcpy_toio(&msg->body[i], oplist, oplen);
+	i += (oplen / 4 + (oplen % 4 ? 1 : 0));
+	writel(0xD0000000 | res.len, &msg->body[i++]);	/* ResultList */
+	writel(res.phys, &msg->body[i++]);
+
+	writel(I2O_MESSAGE_SIZE(i + sizeof(struct i2o_message) / 4) |
+	       SGL_OFFSET_5, &msg->u.head[0]);
+
+	rc = i2o_msg_post_wait_mem(c, m, 10, &res);
+
+	/* This only looks like a memory leak - don't "fix" it. */
+	if (rc == -ETIMEDOUT)
+		return rc;
+
+	memcpy_fromio(reslist, res.virt, res.len);
+	i2o_dma_free(dev, &res);
+
+	/* Query failed */
+	if (rc)
+		return rc;
+	/*
+	 * Calculate number of bytes of Result LIST
+	 * We need to loop through each Result BLOCK and grab the length
+	 */
+	restmp = res32 + 1;
+	len = 1;
+	for (i = 0; i < (res32[0] & 0X0000FFFF); i++) {
+		if (restmp[0] & 0x00FF0000) {	/* BlockStatus != SUCCESS */
+			printk(KERN_WARNING
+			       "%s - Error:\n  ErrorInfoSize = 0x%02x, "
+			       "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
+			       (cmd ==
+				I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET" :
+			       "PARAMS_GET", res32[1] >> 24,
+			       (res32[1] >> 16) & 0xFF, res32[1] & 0xFFFF);
+
+			/*
+			 *      If this is the only request,than we return an error
+			 */
+			if ((res32[0] & 0x0000FFFF) == 1) {
+				return -((res32[1] >> 16) & 0xFF);	/* -BlockStatus */
+			}
+		}
+		len += restmp[0] & 0x0000FFFF;	/* Length of res BLOCK */
+		restmp += restmp[0] & 0x0000FFFF;	/* Skip to next BLOCK */
+	}
+	return (len << 2);	/* bytes used by result list */
+}
+
+/*
+ *	 Query one field group value or a whole scalar group.
+ */
+int i2o_parm_field_get(struct i2o_device *i2o_dev, int group, int field,
+		       void *buf, int buflen)
+{
+	u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
+	u8 resblk[8 + buflen];	/* 8 bytes for header */
+	int size;
+
+	if (field == -1)	/* whole group */
+		opblk[4] = -1;
+
+	size = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
+			      sizeof(opblk), resblk, sizeof(resblk));
+
+	memcpy(buf, resblk + 8, buflen);	/* cut off header */
+
+	if (size > buflen)
+		return buflen;
+
+	return size;
+}
+
+/*
+ * 	if oper == I2O_PARAMS_TABLE_GET, get from all rows
+ * 		if fieldcount == -1 return all fields
+ *			ibuf and ibuflen are unused (use NULL, 0)
+ * 		else return specific fields
+ *  			ibuf contains fieldindexes
+ *
+ * 	if oper == I2O_PARAMS_LIST_GET, get from specific rows
+ * 		if fieldcount == -1 return all fields
+ *			ibuf contains rowcount, keyvalues
+ * 		else return specific fields
+ *			fieldcount is # of fieldindexes
+ *  			ibuf contains fieldindexes, rowcount, keyvalues
+ *
+ *	You could also use directly function i2o_issue_params().
+ */
+int i2o_parm_table_get(struct i2o_device *dev, int oper, int group,
+		       int fieldcount, void *ibuf, int ibuflen, void *resblk,
+		       int reslen)
+{
+	u16 *opblk;
+	int size;
+
+	size = 10 + ibuflen;
+	if (size % 4)
+		size += 4 - size % 4;
+
+	opblk = kmalloc(size, GFP_KERNEL);
+	if (opblk == NULL) {
+		printk(KERN_ERR "i2o: no memory for query buffer.\n");
+		return -ENOMEM;
+	}
+
+	opblk[0] = 1;		/* operation count */
+	opblk[1] = 0;		/* pad */
+	opblk[2] = oper;
+	opblk[3] = group;
+	opblk[4] = fieldcount;
+	memcpy(opblk + 5, ibuf, ibuflen);	/* other params */
+
+	size = i2o_parm_issue(dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
+			      size, resblk, reslen);
+
+	kfree(opblk);
+	if (size > reslen)
+		return reslen;
+
+	return size;
+}
+
+/**
+ *	i2o_device_init - Initialize I2O devices
+ *
+ *	Registers the I2O device class.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int i2o_device_init(void)
+{
+	int rc;
+
+	rc = class_register(&i2o_device_class);
+	if (rc)
+		return rc;
+
+	return class_interface_register(&i2o_device_class_interface);
+};
+
+/**
+ *	i2o_device_exit - I2O devices exit function
+ *
+ *	Unregisters the I2O device class.
+ */
+void i2o_device_exit(void)
+{
+	class_interface_register(&i2o_device_class_interface);
+	class_unregister(&i2o_device_class);
+};
+
+EXPORT_SYMBOL(i2o_device_claim);
+EXPORT_SYMBOL(i2o_device_claim_release);
+EXPORT_SYMBOL(i2o_parm_field_get);
+EXPORT_SYMBOL(i2o_parm_table_get);
+EXPORT_SYMBOL(i2o_parm_issue);
diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
new file mode 100644
index 000000000000..91f4edbb2a27
--- /dev/null
+++ b/drivers/message/i2o/driver.c
@@ -0,0 +1,374 @@
+/*
+ *	Functions to handle I2O drivers (OSMs) and I2O bus type for sysfs
+ *
+ *	Copyright (C) 2004	Markus Lidel <Markus.Lidel@shadowconnect.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.
+ *
+ *	Fixes/additions:
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>
+ *			initial version.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/rwsem.h>
+#include <linux/i2o.h>
+
+/* max_drivers - Maximum I2O drivers (OSMs) which could be registered */
+unsigned int i2o_max_drivers = I2O_MAX_DRIVERS;
+module_param_named(max_drivers, i2o_max_drivers, uint, 0);
+MODULE_PARM_DESC(max_drivers, "maximum number of OSM's to support");
+
+/* I2O drivers lock and array */
+static spinlock_t i2o_drivers_lock;
+static struct i2o_driver **i2o_drivers;
+
+/**
+ *	i2o_bus_match - Tell if a I2O device class id match the class ids of
+ *			the I2O driver (OSM)
+ *
+ *	@dev: device which should be verified
+ *	@drv: the driver to match against
+ *
+ *	Used by the bus to check if the driver wants to handle the device.
+ *
+ *	Returns 1 if the class ids of the driver match the class id of the
+ *	device, otherwise 0.
+ */
+static int i2o_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct i2o_device *i2o_dev = to_i2o_device(dev);
+	struct i2o_driver *i2o_drv = to_i2o_driver(drv);
+	struct i2o_class_id *ids = i2o_drv->classes;
+
+	if (ids)
+		while (ids->class_id != I2O_CLASS_END) {
+			if (ids->class_id == i2o_dev->lct_data.class_id)
+				return 1;
+			ids++;
+		}
+	return 0;
+};
+
+/* I2O bus type */
+struct bus_type i2o_bus_type = {
+	.name = "i2o",
+	.match = i2o_bus_match,
+};
+
+/**
+ *	i2o_driver_register - Register a I2O driver (OSM) in the I2O core
+ *	@drv: I2O driver which should be registered
+ *
+ *	Registers the OSM drv in the I2O core and creates an event queues if
+ *	necessary.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int i2o_driver_register(struct i2o_driver *drv)
+{
+	struct i2o_controller *c;
+	int i;
+	int rc = 0;
+	unsigned long flags;
+
+	pr_debug("i2o: Register driver %s\n", drv->name);
+
+	if (drv->event) {
+		drv->event_queue = create_workqueue(drv->name);
+		if (!drv->event_queue) {
+			printk(KERN_ERR "i2o: Could not initialize event queue "
+			       "for driver %s\n", drv->name);
+			return -EFAULT;
+		}
+		pr_debug("i2o: Event queue initialized for driver %s\n",
+			 drv->name);
+	} else
+		drv->event_queue = NULL;
+
+	drv->driver.name = drv->name;
+	drv->driver.bus = &i2o_bus_type;
+
+	spin_lock_irqsave(&i2o_drivers_lock, flags);
+
+	for (i = 0; i2o_drivers[i]; i++)
+		if (i >= i2o_max_drivers) {
+			printk(KERN_ERR "i2o: too many drivers registered, "
+			       "increase max_drivers\n");
+			spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+			return -EFAULT;
+		}
+
+	drv->context = i;
+	i2o_drivers[i] = drv;
+
+	spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+
+	pr_debug("i2o: driver %s gets context id %d\n", drv->name,
+		 drv->context);
+
+	list_for_each_entry(c, &i2o_controllers, list) {
+		struct i2o_device *i2o_dev;
+
+		i2o_driver_notify_controller_add(drv, c);
+		list_for_each_entry(i2o_dev, &c->devices, list)
+			i2o_driver_notify_device_add(drv, i2o_dev);
+	}
+
+
+	rc = driver_register(&drv->driver);
+	if (rc)
+		destroy_workqueue(drv->event_queue);
+
+	return rc;
+};
+
+/**
+ *	i2o_driver_unregister - Unregister a I2O driver (OSM) from the I2O core
+ *	@drv: I2O driver which should be unregistered
+ *
+ *	Unregisters the OSM drv from the I2O core and cleanup event queues if
+ *	necessary.
+ */
+void i2o_driver_unregister(struct i2o_driver *drv)
+{
+	struct i2o_controller *c;
+	unsigned long flags;
+
+	pr_debug("i2o: unregister driver %s\n", drv->name);
+
+	driver_unregister(&drv->driver);
+
+	list_for_each_entry(c, &i2o_controllers, list) {
+		struct i2o_device *i2o_dev;
+
+		list_for_each_entry(i2o_dev, &c->devices, list)
+		    i2o_driver_notify_device_remove(drv, i2o_dev);
+
+		i2o_driver_notify_controller_remove(drv, c);
+	}
+
+	spin_lock_irqsave(&i2o_drivers_lock, flags);
+	i2o_drivers[drv->context] = NULL;
+	spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+
+	if (drv->event_queue) {
+		destroy_workqueue(drv->event_queue);
+		drv->event_queue = NULL;
+		pr_debug("i2o: event queue removed for %s\n", drv->name);
+	}
+};
+
+/**
+ *	i2o_driver_dispatch - dispatch an I2O reply message
+ *	@c: I2O controller of the message
+ *	@m: I2O message number
+ *	@msg: I2O message to be delivered
+ *
+ *	The reply is delivered to the driver from which the original message
+ *	was. This function is only called from interrupt context.
+ *
+ *	Returns 0 on success and the message should not be flushed. Returns > 0
+ *	on success and if the message should be flushed afterwords. Returns
+ *	negative error code on failure (the message will be flushed too).
+ */
+int i2o_driver_dispatch(struct i2o_controller *c, u32 m,
+			struct i2o_message __iomem *msg)
+{
+	struct i2o_driver *drv;
+	u32 context = readl(&msg->u.s.icntxt);
+
+	if (likely(context < i2o_max_drivers)) {
+		spin_lock(&i2o_drivers_lock);
+		drv = i2o_drivers[context];
+		spin_unlock(&i2o_drivers_lock);
+
+		if (unlikely(!drv)) {
+			printk(KERN_WARNING "%s: Spurious reply to unknown "
+			       "driver %d\n", c->name, context);
+			return -EIO;
+		}
+
+		if ((readl(&msg->u.head[1]) >> 24) == I2O_CMD_UTIL_EVT_REGISTER) {
+			struct i2o_device *dev, *tmp;
+			struct i2o_event *evt;
+			u16 size;
+			u16 tid;
+
+			tid = readl(&msg->u.head[1]) & 0x1fff;
+
+			pr_debug("%s: event received from device %d\n", c->name,
+				 tid);
+
+			/* cut of header from message size (in 32-bit words) */
+			size = (readl(&msg->u.head[0]) >> 16) - 5;
+
+			evt = kmalloc(size * 4 + sizeof(*evt), GFP_ATOMIC);
+			if (!evt)
+				return -ENOMEM;
+			memset(evt, 0, size * 4 + sizeof(*evt));
+
+			evt->size = size;
+			memcpy_fromio(&evt->tcntxt, &msg->u.s.tcntxt,
+				      (size + 2) * 4);
+
+			list_for_each_entry_safe(dev, tmp, &c->devices, list)
+			    if (dev->lct_data.tid == tid) {
+				evt->i2o_dev = dev;
+				break;
+			}
+
+			INIT_WORK(&evt->work, (void (*)(void *))drv->event,
+				  evt);
+			queue_work(drv->event_queue, &evt->work);
+			return 1;
+		}
+
+		if (likely(drv->reply))
+			return drv->reply(c, m, msg);
+		else
+			pr_debug("%s: Reply to driver %s, but no reply function"
+				 " defined!\n", c->name, drv->name);
+		return -EIO;
+	} else
+		printk(KERN_WARNING "%s: Spurious reply to unknown driver "
+		       "%d\n", c->name, readl(&msg->u.s.icntxt));
+	return -EIO;
+}
+
+/**
+ *	i2o_driver_notify_controller_add_all - Send notify of added controller
+ *					       to all I2O drivers
+ *
+ *	Send notifications to all registered drivers that a new controller was
+ *	added.
+ */
+void i2o_driver_notify_controller_add_all(struct i2o_controller *c)
+{
+	int i;
+	struct i2o_driver *drv;
+
+	for (i = 0; i < I2O_MAX_DRIVERS; i++) {
+		drv = i2o_drivers[i];
+
+		if (drv)
+			i2o_driver_notify_controller_add(drv, c);
+	}
+}
+
+/**
+ *	i2o_driver_notify_controller_remove_all - Send notify of removed
+ *						  controller to all I2O drivers
+ *
+ *	Send notifications to all registered drivers that a controller was
+ *	removed.
+ */
+void i2o_driver_notify_controller_remove_all(struct i2o_controller *c)
+{
+	int i;
+	struct i2o_driver *drv;
+
+	for (i = 0; i < I2O_MAX_DRIVERS; i++) {
+		drv = i2o_drivers[i];
+
+		if (drv)
+			i2o_driver_notify_controller_remove(drv, c);
+	}
+}
+
+/**
+ *	i2o_driver_notify_device_add_all - Send notify of added device to all
+ *					   I2O drivers
+ *
+ *	Send notifications to all registered drivers that a device was added.
+ */
+void i2o_driver_notify_device_add_all(struct i2o_device *i2o_dev)
+{
+	int i;
+	struct i2o_driver *drv;
+
+	for (i = 0; i < I2O_MAX_DRIVERS; i++) {
+		drv = i2o_drivers[i];
+
+		if (drv)
+			i2o_driver_notify_device_add(drv, i2o_dev);
+	}
+}
+
+/**
+ *	i2o_driver_notify_device_remove_all - Send notify of removed device to
+ *					      all I2O drivers
+ *
+ *	Send notifications to all registered drivers that a device was removed.
+ */
+void i2o_driver_notify_device_remove_all(struct i2o_device *i2o_dev)
+{
+	int i;
+	struct i2o_driver *drv;
+
+	for (i = 0; i < I2O_MAX_DRIVERS; i++) {
+		drv = i2o_drivers[i];
+
+		if (drv)
+			i2o_driver_notify_device_remove(drv, i2o_dev);
+	}
+}
+
+/**
+ *	i2o_driver_init - initialize I2O drivers (OSMs)
+ *
+ *	Registers the I2O bus and allocate memory for the array of OSMs.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int __init i2o_driver_init(void)
+{
+	int rc = 0;
+
+	spin_lock_init(&i2o_drivers_lock);
+
+	if ((i2o_max_drivers < 2) || (i2o_max_drivers > 64) ||
+	    ((i2o_max_drivers ^ (i2o_max_drivers - 1)) !=
+	     (2 * i2o_max_drivers - 1))) {
+		printk(KERN_WARNING "i2o: max_drivers set to %d, but must be "
+		       ">=2 and <= 64 and a power of 2\n", i2o_max_drivers);
+		i2o_max_drivers = I2O_MAX_DRIVERS;
+	}
+	printk(KERN_INFO "i2o: max drivers = %d\n", i2o_max_drivers);
+
+	i2o_drivers =
+	    kmalloc(i2o_max_drivers * sizeof(*i2o_drivers), GFP_KERNEL);
+	if (!i2o_drivers)
+		return -ENOMEM;
+
+	memset(i2o_drivers, 0, i2o_max_drivers * sizeof(*i2o_drivers));
+
+	rc = bus_register(&i2o_bus_type);
+
+	if (rc < 0)
+		kfree(i2o_drivers);
+
+	return rc;
+};
+
+/**
+ *	i2o_driver_exit - clean up I2O drivers (OSMs)
+ *
+ *	Unregisters the I2O bus and free driver array.
+ */
+void __exit i2o_driver_exit(void)
+{
+	bus_unregister(&i2o_bus_type);
+	kfree(i2o_drivers);
+};
+
+EXPORT_SYMBOL(i2o_driver_register);
+EXPORT_SYMBOL(i2o_driver_unregister);
+EXPORT_SYMBOL(i2o_driver_notify_controller_add_all);
+EXPORT_SYMBOL(i2o_driver_notify_controller_remove_all);
+EXPORT_SYMBOL(i2o_driver_notify_device_add_all);
+EXPORT_SYMBOL(i2o_driver_notify_device_remove_all);
diff --git a/drivers/message/i2o/exec-osm.c b/drivers/message/i2o/exec-osm.c
new file mode 100644
index 000000000000..79c1cbfb8f44
--- /dev/null
+++ b/drivers/message/i2o/exec-osm.c
@@ -0,0 +1,507 @@
+/*
+ *	Executive OSM
+ *
+ * 	Copyright (C) 1999-2002	Red Hat Software
+ *
+ *	Written by Alan Cox, Building Number Three Ltd
+ *
+ *	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.
+ *
+ *	A lot of the I2O message side code from this is taken from the Red
+ *	Creek RCPCI45 adapter driver by Red Creek Communications
+ *
+ *	Fixes/additions:
+ *		Philipp Rumpf
+ *		Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI>
+ *		Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ *		Deepak Saxena <deepak@plexity.net>
+ *		Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ *		Alan Cox <alan@redhat.com>:
+ *			Ported to Linux 2.5.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Minor fixes for 2.6.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Support for sysfs included.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+#include <linux/delay.h>
+
+#define OSM_NAME "exec-osm"
+
+struct i2o_driver i2o_exec_driver;
+
+static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind);
+
+/* Module internal functions from other sources */
+extern int i2o_device_parse_lct(struct i2o_controller *);
+
+/* global wait list for POST WAIT */
+static LIST_HEAD(i2o_exec_wait_list);
+
+/* Wait struct needed for POST WAIT */
+struct i2o_exec_wait {
+	wait_queue_head_t *wq;	/* Pointer to Wait queue */
+	struct i2o_dma dma;	/* DMA buffers to free on failure */
+	u32 tcntxt;		/* transaction context from reply */
+	int complete;		/* 1 if reply received otherwise 0 */
+	u32 m;			/* message id */
+	struct i2o_message __iomem *msg;	/* pointer to the reply message */
+	struct list_head list;	/* node in global wait list */
+};
+
+/* Exec OSM class handling definition */
+static struct i2o_class_id i2o_exec_class_id[] = {
+	{I2O_CLASS_EXECUTIVE},
+	{I2O_CLASS_END}
+};
+
+/**
+ *	i2o_exec_wait_alloc - Allocate a i2o_exec_wait struct an initialize it
+ *
+ *	Allocate the i2o_exec_wait struct and initialize the wait.
+ *
+ *	Returns i2o_exec_wait pointer on success or negative error code on
+ *	failure.
+ */
+static struct i2o_exec_wait *i2o_exec_wait_alloc(void)
+{
+	struct i2o_exec_wait *wait;
+
+	wait = kmalloc(sizeof(*wait), GFP_KERNEL);
+	if (!wait)
+		return ERR_PTR(-ENOMEM);
+
+	memset(wait, 0, sizeof(*wait));
+
+	INIT_LIST_HEAD(&wait->list);
+
+	return wait;
+};
+
+/**
+ *	i2o_exec_wait_free - Free a i2o_exec_wait struct
+ *	@i2o_exec_wait: I2O wait data which should be cleaned up
+ */
+static void i2o_exec_wait_free(struct i2o_exec_wait *wait)
+{
+	kfree(wait);
+};
+
+/**
+ * 	i2o_msg_post_wait_mem - Post and wait a message with DMA buffers
+ *	@c: controller
+ *	@m: message to post
+ *	@timeout: time in seconds to wait
+ *	@dma: i2o_dma struct of the DMA buffer to free on failure
+ *
+ * 	This API allows an OSM to post a message and then be told whether or
+ *	not the system received a successful reply. If the message times out
+ *	then the value '-ETIMEDOUT' is returned. This is a special case. In
+ *	this situation the message may (should) complete at an indefinite time
+ *	in the future. When it completes it will use the memory buffer
+ *	attached to the request. If -ETIMEDOUT is returned then the memory
+ *	buffer must not be freed. Instead the event completion will free them
+ *	for you. In all other cases the buffer are your problem.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int i2o_msg_post_wait_mem(struct i2o_controller *c, u32 m, unsigned long
+			  timeout, struct i2o_dma *dma)
+{
+	DECLARE_WAIT_QUEUE_HEAD(wq);
+	struct i2o_exec_wait *wait;
+	static u32 tcntxt = 0x80000000;
+	struct i2o_message __iomem *msg = c->in_queue.virt + m;
+	int rc = 0;
+
+	wait = i2o_exec_wait_alloc();
+	if (!wait)
+		return -ENOMEM;
+
+	if (tcntxt == 0xffffffff)
+		tcntxt = 0x80000000;
+
+	if (dma)
+		wait->dma = *dma;
+
+	/*
+	 * Fill in the message initiator context and transaction context.
+	 * We will only use transaction contexts >= 0x80000000 for POST WAIT,
+	 * so we could find a POST WAIT reply easier in the reply handler.
+	 */
+	writel(i2o_exec_driver.context, &msg->u.s.icntxt);
+	wait->tcntxt = tcntxt++;
+	writel(wait->tcntxt, &msg->u.s.tcntxt);
+
+	/*
+	 * Post the message to the controller. At some point later it will
+	 * return. If we time out before it returns then complete will be zero.
+	 */
+	i2o_msg_post(c, m);
+
+	if (!wait->complete) {
+		wait->wq = &wq;
+		/*
+		 * we add elements add the head, because if a entry in the list
+		 * will never be removed, we have to iterate over it every time
+		 */
+		list_add(&wait->list, &i2o_exec_wait_list);
+
+		wait_event_interruptible_timeout(wq, wait->complete,
+			timeout * HZ);
+
+		wait->wq = NULL;
+	}
+
+	barrier();
+
+	if (wait->complete) {
+		if (readl(&wait->msg->body[0]) >> 24)
+			rc = readl(&wait->msg->body[0]) & 0xff;
+		i2o_flush_reply(c, wait->m);
+		i2o_exec_wait_free(wait);
+	} else {
+		/*
+		 * We cannot remove it now. This is important. When it does
+		 * terminate (which it must do if the controller has not
+		 * died...) then it will otherwise scribble on stuff.
+		 *
+		 * FIXME: try abort message
+		 */
+		if (dma)
+			dma->virt = NULL;
+
+		rc = -ETIMEDOUT;
+	}
+
+	return rc;
+};
+
+/**
+ *	i2o_msg_post_wait_complete - Reply to a i2o_msg_post request from IOP
+ *	@c: I2O controller which answers
+ *	@m: message id
+ *	@msg: pointer to the I2O reply message
+ *
+ *	This function is called in interrupt context only. If the reply reached
+ *	before the timeout, the i2o_exec_wait struct is filled with the message
+ *	and the task will be waked up. The task is now responsible for returning
+ *	the message m back to the controller! If the message reaches us after
+ *	the timeout clean up the i2o_exec_wait struct (including allocated
+ *	DMA buffer).
+ *
+ *	Return 0 on success and if the message m should not be given back to the
+ *	I2O controller, or >0 on success and if the message should be given back
+ *	afterwords. Returns negative error code on failure. In this case the
+ *	message must also be given back to the controller.
+ */
+static int i2o_msg_post_wait_complete(struct i2o_controller *c, u32 m,
+				      struct i2o_message __iomem *msg)
+{
+	struct i2o_exec_wait *wait, *tmp;
+	static spinlock_t lock;
+	int rc = 1;
+	u32 context;
+
+	spin_lock_init(&lock);
+
+	context = readl(&msg->u.s.tcntxt);
+
+	/*
+	 * We need to search through the i2o_exec_wait_list to see if the given
+	 * message is still outstanding. If not, it means that the IOP took
+	 * longer to respond to the message than we had allowed and timer has
+	 * already expired. Not much we can do about that except log it for
+	 * debug purposes, increase timeout, and recompile.
+	 */
+	spin_lock(&lock);
+	list_for_each_entry_safe(wait, tmp, &i2o_exec_wait_list, list) {
+		if (wait->tcntxt == context) {
+			list_del(&wait->list);
+
+			wait->m = m;
+			wait->msg = msg;
+			wait->complete = 1;
+
+			barrier();
+
+			if (wait->wq) {
+				wake_up_interruptible(wait->wq);
+				rc = 0;
+			} else {
+				struct device *dev;
+
+				dev = &c->pdev->dev;
+
+				pr_debug("%s: timedout reply received!\n",
+					 c->name);
+				i2o_dma_free(dev, &wait->dma);
+				i2o_exec_wait_free(wait);
+				rc = -1;
+			}
+
+			spin_unlock(&lock);
+
+			return rc;
+		}
+	}
+
+	spin_unlock(&lock);
+
+	pr_debug("%s: Bogus reply in POST WAIT (tr-context: %08x)!\n", c->name,
+		 context);
+
+	return -1;
+};
+
+/**
+ *	i2o_exec_probe - Called if a new I2O device (executive class) appears
+ *	@dev: I2O device which should be probed
+ *
+ *	Registers event notification for every event from Executive device. The
+ *	return is always 0, because we want all devices of class Executive.
+ *
+ *	Returns 0 on success.
+ */
+static int i2o_exec_probe(struct device *dev)
+{
+	struct i2o_device *i2o_dev = to_i2o_device(dev);
+
+	i2o_event_register(i2o_dev, &i2o_exec_driver, 0, 0xffffffff);
+
+	i2o_dev->iop->exec = i2o_dev;
+
+	return 0;
+};
+
+/**
+ *	i2o_exec_remove - Called on I2O device removal
+ *	@dev: I2O device which was removed
+ *
+ *	Unregisters event notification from Executive I2O device.
+ *
+ *	Returns 0 on success.
+ */
+static int i2o_exec_remove(struct device *dev)
+{
+	i2o_event_register(to_i2o_device(dev), &i2o_exec_driver, 0, 0);
+
+	return 0;
+};
+
+/**
+ *	i2o_exec_lct_modified - Called on LCT NOTIFY reply
+ *	@c: I2O controller on which the LCT has modified
+ *
+ *	This function handles asynchronus LCT NOTIFY replies. It parses the
+ *	new LCT and if the buffer for the LCT was to small sends a LCT NOTIFY
+ *	again.
+ */
+static void i2o_exec_lct_modified(struct i2o_controller *c)
+{
+	if (i2o_device_parse_lct(c) == -EAGAIN)
+		i2o_exec_lct_notify(c, 0);
+};
+
+/**
+ *	i2o_exec_reply -  I2O Executive reply handler
+ *	@c: I2O controller from which the reply comes
+ *	@m: message id
+ *	@msg: pointer to the I2O reply message
+ *
+ *	This function is always called from interrupt context. If a POST WAIT
+ *	reply was received, pass it to the complete function. If a LCT NOTIFY
+ *	reply was received, a new event is created to handle the update.
+ *
+ *	Returns 0 on success and if the reply should not be flushed or > 0
+ *	on success and if the reply should be flushed. Returns negative error
+ *	code on failure and if the reply should be flushed.
+ */
+static int i2o_exec_reply(struct i2o_controller *c, u32 m,
+			  struct i2o_message *msg)
+{
+	if (le32_to_cpu(msg->u.head[0]) & MSG_FAIL) {	// Fail bit is set
+		struct i2o_message __iomem *pmsg;	/* preserved message */
+		u32 pm;
+
+		pm = le32_to_cpu(msg->body[3]);
+
+		pmsg = i2o_msg_in_to_virt(c, pm);
+
+		i2o_report_status(KERN_INFO, "i2o_core", msg);
+
+		/* Release the preserved msg by resubmitting it as a NOP */
+		i2o_msg_nop(c, pm);
+
+		/* If reply to i2o_post_wait failed, return causes a timeout */
+		return -1;
+	}
+
+	if (le32_to_cpu(msg->u.s.tcntxt) & 0x80000000)
+		return i2o_msg_post_wait_complete(c, m, msg);
+
+	if ((le32_to_cpu(msg->u.head[1]) >> 24) == I2O_CMD_LCT_NOTIFY) {
+		struct work_struct *work;
+
+		pr_debug("%s: LCT notify received\n", c->name);
+
+		work = kmalloc(sizeof(*work), GFP_ATOMIC);
+		if (!work)
+			return -ENOMEM;
+
+		INIT_WORK(work, (void (*)(void *))i2o_exec_lct_modified, c);
+		queue_work(i2o_exec_driver.event_queue, work);
+		return 1;
+	}
+
+	/*
+	 * If this happens, we want to dump the message to the syslog so
+	 * it can be sent back to the card manufacturer by the end user
+	 * to aid in debugging.
+	 *
+	 */
+	printk(KERN_WARNING "%s: Unsolicited message reply sent to core!"
+	       "Message dumped to syslog\n", c->name);
+	i2o_dump_message(msg);
+
+	return -EFAULT;
+}
+
+/**
+ *	i2o_exec_event - Event handling function
+ *	@evt: Event which occurs
+ *
+ *	Handles events send by the Executive device. At the moment does not do
+ *	anything useful.
+ */
+static void i2o_exec_event(struct i2o_event *evt)
+{
+	osm_info("Event received from device: %d\n",
+		 evt->i2o_dev->lct_data.tid);
+	kfree(evt);
+};
+
+/**
+ *	i2o_exec_lct_get - Get the IOP's Logical Configuration Table
+ *	@c: I2O controller from which the LCT should be fetched
+ *
+ *	Send a LCT NOTIFY request to the controller, and wait
+ *	I2O_TIMEOUT_LCT_GET seconds until arrival of response. If the LCT is
+ *	to large, retry it.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int i2o_exec_lct_get(struct i2o_controller *c)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	int i = 0;
+	int rc = -EAGAIN;
+
+	for (i = 1; i <= I2O_LCT_GET_TRIES; i++) {
+		m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+		if (m == I2O_QUEUE_EMPTY)
+			return -ETIMEDOUT;
+
+		writel(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6, &msg->u.head[0]);
+		writel(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 | ADAPTER_TID,
+		       &msg->u.head[1]);
+		writel(0xffffffff, &msg->body[0]);
+		writel(0x00000000, &msg->body[1]);
+		writel(0xd0000000 | c->dlct.len, &msg->body[2]);
+		writel(c->dlct.phys, &msg->body[3]);
+
+		rc = i2o_msg_post_wait(c, m, I2O_TIMEOUT_LCT_GET);
+		if (rc < 0)
+			break;
+
+		rc = i2o_device_parse_lct(c);
+		if (rc != -EAGAIN)
+			break;
+	}
+
+	return rc;
+}
+
+/**
+ *	i2o_exec_lct_notify - Send a asynchronus LCT NOTIFY request
+ *	@c: I2O controller to which the request should be send
+ *	@change_ind: change indicator
+ *
+ *	This function sends a LCT NOTIFY request to the I2O controller with
+ *	the change indicator change_ind. If the change_ind == 0 the controller
+ *	replies immediately after the request. If change_ind > 0 the reply is
+ *	send after change indicator of the LCT is > change_ind.
+ */
+static int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind)
+{
+	i2o_status_block *sb = c->status_block.virt;
+	struct device *dev;
+	struct i2o_message __iomem *msg;
+	u32 m;
+
+	dev = &c->pdev->dev;
+
+	if (i2o_dma_realloc(dev, &c->dlct, sb->expected_lct_size, GFP_KERNEL))
+		return -ENOMEM;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6, &msg->u.head[0]);
+	writel(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(i2o_exec_driver.context, &msg->u.s.icntxt);
+	writel(0, &msg->u.s.tcntxt);	/* FIXME */
+	writel(0xffffffff, &msg->body[0]);
+	writel(change_ind, &msg->body[1]);
+	writel(0xd0000000 | c->dlct.len, &msg->body[2]);
+	writel(c->dlct.phys, &msg->body[3]);
+
+	i2o_msg_post(c, m);
+
+	return 0;
+};
+
+/* Exec OSM driver struct */
+struct i2o_driver i2o_exec_driver = {
+	.name = OSM_NAME,
+	.reply = i2o_exec_reply,
+	.event = i2o_exec_event,
+	.classes = i2o_exec_class_id,
+	.driver = {
+		   .probe = i2o_exec_probe,
+		   .remove = i2o_exec_remove,
+		   },
+};
+
+/**
+ *	i2o_exec_init - Registers the Exec OSM
+ *
+ *	Registers the Exec OSM in the I2O core.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int __init i2o_exec_init(void)
+{
+	return i2o_driver_register(&i2o_exec_driver);
+};
+
+/**
+ *	i2o_exec_exit - Removes the Exec OSM
+ *
+ *	Unregisters the Exec OSM from the I2O core.
+ */
+void __exit i2o_exec_exit(void)
+{
+	i2o_driver_unregister(&i2o_exec_driver);
+};
+
+EXPORT_SYMBOL(i2o_msg_post_wait_mem);
+EXPORT_SYMBOL(i2o_exec_lct_get);
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
new file mode 100644
index 000000000000..7b74c87b569e
--- /dev/null
+++ b/drivers/message/i2o/i2o_block.c
@@ -0,0 +1,1247 @@
+/*
+ *	Block OSM
+ *
+ * 	Copyright (C) 1999-2002	Red Hat Software
+ *
+ *	Written by Alan Cox, Building Number Three Ltd
+ *
+ *	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.
+ *
+ *	For the purpose of avoiding doubt the preferred form of the work
+ *	for making modifications shall be a standards compliant form such
+ *	gzipped tar and not one requiring a proprietary or patent encumbered
+ *	tool to unpack.
+ *
+ *	Fixes/additions:
+ *		Steve Ralston:
+ *			Multiple device handling error fixes,
+ *			Added a queue depth.
+ *		Alan Cox:
+ *			FC920 has an rmw bug. Dont or in the end marker.
+ *			Removed queue walk, fixed for 64bitness.
+ *			Rewrote much of the code over time
+ *			Added indirect block lists
+ *			Handle 64K limits on many controllers
+ *			Don't use indirects on the Promise (breaks)
+ *			Heavily chop down the queue depths
+ *		Deepak Saxena:
+ *			Independent queues per IOP
+ *			Support for dynamic device creation/deletion
+ *			Code cleanup
+ *	    		Support for larger I/Os through merge* functions
+ *			(taken from DAC960 driver)
+ *		Boji T Kannanthanam:
+ *			Set the I2O Block devices to be detected in increasing
+ *			order of TIDs during boot.
+ *			Search and set the I2O block device that we boot off
+ *			from as the first device to be claimed (as /dev/i2o/hda)
+ *			Properly attach/detach I2O gendisk structure from the
+ *			system gendisk list. The I2O block devices now appear in
+ *			/proc/partitions.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Minor bugfixes for 2.6.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+
+#include <linux/mempool.h>
+
+#include <linux/genhd.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+
+#include "i2o_block.h"
+
+#define OSM_NAME	"block-osm"
+#define OSM_VERSION	"$Rev$"
+#define OSM_DESCRIPTION	"I2O Block Device OSM"
+
+static struct i2o_driver i2o_block_driver;
+
+/* global Block OSM request mempool */
+static struct i2o_block_mempool i2o_blk_req_pool;
+
+/* Block OSM class handling definition */
+static struct i2o_class_id i2o_block_class_id[] = {
+	{I2O_CLASS_RANDOM_BLOCK_STORAGE},
+	{I2O_CLASS_END}
+};
+
+/**
+ *	i2o_block_device_free - free the memory of the I2O Block device
+ *	@dev: I2O Block device, which should be cleaned up
+ *
+ *	Frees the request queue, gendisk and the i2o_block_device structure.
+ */
+static void i2o_block_device_free(struct i2o_block_device *dev)
+{
+	blk_cleanup_queue(dev->gd->queue);
+
+	put_disk(dev->gd);
+
+	kfree(dev);
+};
+
+/**
+ *	i2o_block_remove - remove the I2O Block device from the system again
+ *	@dev: I2O Block device which should be removed
+ *
+ *	Remove gendisk from system and free all allocated memory.
+ *
+ *	Always returns 0.
+ */
+static int i2o_block_remove(struct device *dev)
+{
+	struct i2o_device *i2o_dev = to_i2o_device(dev);
+	struct i2o_block_device *i2o_blk_dev = dev_get_drvdata(dev);
+
+	osm_info("Device removed %s\n", i2o_blk_dev->gd->disk_name);
+
+	i2o_event_register(i2o_dev, &i2o_block_driver, 0, 0);
+
+	del_gendisk(i2o_blk_dev->gd);
+
+	dev_set_drvdata(dev, NULL);
+
+	i2o_device_claim_release(i2o_dev);
+
+	i2o_block_device_free(i2o_blk_dev);
+
+	return 0;
+};
+
+/**
+ *	i2o_block_device flush - Flush all dirty data of I2O device dev
+ *	@dev: I2O device which should be flushed
+ *
+ *	Flushes all dirty data on device dev.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_flush(struct i2o_device *dev)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+
+	m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_BLOCK_CFLUSH << 24 | HOST_TID << 12 | dev->lct_data.tid,
+	       &msg->u.head[1]);
+	writel(60 << 16, &msg->body[0]);
+	osm_debug("Flushing...\n");
+
+	return i2o_msg_post_wait(dev->iop, m, 60);
+};
+
+/**
+ *	i2o_block_device_mount - Mount (load) the media of device dev
+ *	@dev: I2O device which should receive the mount request
+ *	@media_id: Media Identifier
+ *
+ *	Load a media into drive. Identifier should be set to -1, because the
+ *	spec does not support any other value.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_mount(struct i2o_device *dev, u32 media_id)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+
+	m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_BLOCK_MMOUNT << 24 | HOST_TID << 12 | dev->lct_data.tid,
+	       &msg->u.head[1]);
+	writel(-1, &msg->body[0]);
+	writel(0, &msg->body[1]);
+	osm_debug("Mounting...\n");
+
+	return i2o_msg_post_wait(dev->iop, m, 2);
+};
+
+/**
+ *	i2o_block_device_lock - Locks the media of device dev
+ *	@dev: I2O device which should receive the lock request
+ *	@media_id: Media Identifier
+ *
+ *	Lock media of device dev to prevent removal. The media identifier
+ *	should be set to -1, because the spec does not support any other value.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_lock(struct i2o_device *dev, u32 media_id)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+
+	m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_BLOCK_MLOCK << 24 | HOST_TID << 12 | dev->lct_data.tid,
+	       &msg->u.head[1]);
+	writel(-1, &msg->body[0]);
+	osm_debug("Locking...\n");
+
+	return i2o_msg_post_wait(dev->iop, m, 2);
+};
+
+/**
+ *	i2o_block_device_unlock - Unlocks the media of device dev
+ *	@dev: I2O device which should receive the unlocked request
+ *	@media_id: Media Identifier
+ *
+ *	Unlocks the media in device dev. The media identifier should be set to
+ *	-1, because the spec does not support any other value.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_unlock(struct i2o_device *dev, u32 media_id)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+
+	m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_BLOCK_MUNLOCK << 24 | HOST_TID << 12 | dev->lct_data.tid,
+	       &msg->u.head[1]);
+	writel(media_id, &msg->body[0]);
+	osm_debug("Unlocking...\n");
+
+	return i2o_msg_post_wait(dev->iop, m, 2);
+};
+
+/**
+ *	i2o_block_device_power - Power management for device dev
+ *	@dev: I2O device which should receive the power management request
+ *	@operation: Operation which should be send
+ *
+ *	Send a power management request to the device dev.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_power(struct i2o_block_device *dev, u8 op)
+{
+	struct i2o_device *i2o_dev = dev->i2o_dev;
+	struct i2o_controller *c = i2o_dev->iop;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	int rc;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_BLOCK_POWER << 24 | HOST_TID << 12 | i2o_dev->lct_data.
+	       tid, &msg->u.head[1]);
+	writel(op << 24, &msg->body[0]);
+	osm_debug("Power...\n");
+
+	rc = i2o_msg_post_wait(c, m, 60);
+	if (!rc)
+		dev->power = op;
+
+	return rc;
+};
+
+/**
+ *	i2o_block_request_alloc - Allocate an I2O block request struct
+ *
+ *	Allocates an I2O block request struct and initialize the list.
+ *
+ *	Returns a i2o_block_request pointer on success or negative error code
+ *	on failure.
+ */
+static inline struct i2o_block_request *i2o_block_request_alloc(void)
+{
+	struct i2o_block_request *ireq;
+
+	ireq = mempool_alloc(i2o_blk_req_pool.pool, GFP_ATOMIC);
+	if (!ireq)
+		return ERR_PTR(-ENOMEM);
+
+	INIT_LIST_HEAD(&ireq->queue);
+
+	return ireq;
+};
+
+/**
+ *	i2o_block_request_free - Frees a I2O block request
+ *	@ireq: I2O block request which should be freed
+ *
+ *	Fres the allocated memory (give it back to the request mempool).
+ */
+static inline void i2o_block_request_free(struct i2o_block_request *ireq)
+{
+	mempool_free(ireq, i2o_blk_req_pool.pool);
+};
+
+/**
+ *	i2o_block_sglist_alloc - Allocate the SG list and map it
+ *	@ireq: I2O block request
+ *
+ *	Builds the SG list and map it into to be accessable by the controller.
+ *
+ *	Returns the number of elements in the SG list or 0 on failure.
+ */
+static inline int i2o_block_sglist_alloc(struct i2o_block_request *ireq)
+{
+	struct device *dev = &ireq->i2o_blk_dev->i2o_dev->iop->pdev->dev;
+	int nents;
+
+	nents = blk_rq_map_sg(ireq->req->q, ireq->req, ireq->sg_table);
+
+	if (rq_data_dir(ireq->req) == READ)
+		ireq->sg_dma_direction = PCI_DMA_FROMDEVICE;
+	else
+		ireq->sg_dma_direction = PCI_DMA_TODEVICE;
+
+	ireq->sg_nents = dma_map_sg(dev, ireq->sg_table, nents,
+				    ireq->sg_dma_direction);
+
+	return ireq->sg_nents;
+};
+
+/**
+ *	i2o_block_sglist_free - Frees the SG list
+ *	@ireq: I2O block request from which the SG should be freed
+ *
+ *	Frees the SG list from the I2O block request.
+ */
+static inline void i2o_block_sglist_free(struct i2o_block_request *ireq)
+{
+	struct device *dev = &ireq->i2o_blk_dev->i2o_dev->iop->pdev->dev;
+
+	dma_unmap_sg(dev, ireq->sg_table, ireq->sg_nents,
+		     ireq->sg_dma_direction);
+};
+
+/**
+ *	i2o_block_prep_req_fn - Allocates I2O block device specific struct
+ *	@q: request queue for the request
+ *	@req: the request to prepare
+ *
+ *	Allocate the necessary i2o_block_request struct and connect it to
+ *	the request. This is needed that we not loose the SG list later on.
+ *
+ *	Returns BLKPREP_OK on success or BLKPREP_DEFER on failure.
+ */
+static int i2o_block_prep_req_fn(struct request_queue *q, struct request *req)
+{
+	struct i2o_block_device *i2o_blk_dev = q->queuedata;
+	struct i2o_block_request *ireq;
+
+	/* request is already processed by us, so return */
+	if (req->flags & REQ_SPECIAL) {
+		osm_debug("REQ_SPECIAL already set!\n");
+		req->flags |= REQ_DONTPREP;
+		return BLKPREP_OK;
+	}
+
+	/* connect the i2o_block_request to the request */
+	if (!req->special) {
+		ireq = i2o_block_request_alloc();
+		if (unlikely(IS_ERR(ireq))) {
+			osm_debug("unable to allocate i2o_block_request!\n");
+			return BLKPREP_DEFER;
+		}
+
+		ireq->i2o_blk_dev = i2o_blk_dev;
+		req->special = ireq;
+		ireq->req = req;
+	} else
+		ireq = req->special;
+
+	/* do not come back here */
+	req->flags |= REQ_DONTPREP | REQ_SPECIAL;
+
+	return BLKPREP_OK;
+};
+
+/**
+ *	i2o_block_delayed_request_fn - delayed request queue function
+ *	delayed_request: the delayed request with the queue to start
+ *
+ *	If the request queue is stopped for a disk, and there is no open
+ *	request, a new event is created, which calls this function to start
+ *	the queue after I2O_BLOCK_REQUEST_TIME. Otherwise the queue will never
+ *	be started again.
+ */
+static void i2o_block_delayed_request_fn(void *delayed_request)
+{
+	struct i2o_block_delayed_request *dreq = delayed_request;
+	struct request_queue *q = dreq->queue;
+	unsigned long flags;
+
+	spin_lock_irqsave(q->queue_lock, flags);
+	blk_start_queue(q);
+	spin_unlock_irqrestore(q->queue_lock, flags);
+	kfree(dreq);
+};
+
+/**
+ *	i2o_block_reply - Block OSM reply handler.
+ *	@c: I2O controller from which the message arrives
+ *	@m: message id of reply
+ *	qmsg: the actuall I2O message reply
+ *
+ *	This function gets all the message replies.
+ *
+ */
+static int i2o_block_reply(struct i2o_controller *c, u32 m,
+			   struct i2o_message *msg)
+{
+	struct i2o_block_request *ireq;
+	struct request *req;
+	struct i2o_block_device *dev;
+	struct request_queue *q;
+	u8 st;
+	unsigned long flags;
+
+	/* FAILed message */
+	if (unlikely(le32_to_cpu(msg->u.head[0]) & (1 << 13))) {
+		struct i2o_message *pmsg;
+		u32 pm;
+
+		/*
+		 * FAILed message from controller
+		 * We increment the error count and abort it
+		 *
+		 * In theory this will never happen.  The I2O block class
+		 * specification states that block devices never return
+		 * FAILs but instead use the REQ status field...but
+		 * better be on the safe side since no one really follows
+		 * the spec to the book :)
+		 */
+		pm = le32_to_cpu(msg->body[3]);
+		pmsg = i2o_msg_in_to_virt(c, pm);
+
+		req = i2o_cntxt_list_get(c, le32_to_cpu(pmsg->u.s.tcntxt));
+		if (unlikely(!req)) {
+			osm_err("NULL reply received!\n");
+			return -1;
+		}
+
+		ireq = req->special;
+		dev = ireq->i2o_blk_dev;
+		q = dev->gd->queue;
+
+		req->errors++;
+
+		spin_lock_irqsave(q->queue_lock, flags);
+
+		while (end_that_request_chunk(req, !req->errors,
+					      le32_to_cpu(pmsg->body[1]))) ;
+		end_that_request_last(req);
+
+		dev->open_queue_depth--;
+		list_del(&ireq->queue);
+		blk_start_queue(q);
+
+		spin_unlock_irqrestore(q->queue_lock, flags);
+
+		/* Now flush the message by making it a NOP */
+		i2o_msg_nop(c, pm);
+
+		return -1;
+	}
+
+	req = i2o_cntxt_list_get(c, le32_to_cpu(msg->u.s.tcntxt));
+	if (unlikely(!req)) {
+		osm_err("NULL reply received!\n");
+		return -1;
+	}
+
+	ireq = req->special;
+	dev = ireq->i2o_blk_dev;
+	q = dev->gd->queue;
+
+	if (unlikely(!dev->i2o_dev)) {
+		/*
+		 * This is HACK, but Intel Integrated RAID allows user
+		 * to delete a volume that is claimed, locked, and in use
+		 * by the OS. We have to check for a reply from a
+		 * non-existent device and flag it as an error or the system
+		 * goes kaput...
+		 */
+		req->errors++;
+		osm_warn("Data transfer to deleted device!\n");
+		spin_lock_irqsave(q->queue_lock, flags);
+		while (end_that_request_chunk
+		       (req, !req->errors, le32_to_cpu(msg->body[1]))) ;
+		end_that_request_last(req);
+
+		dev->open_queue_depth--;
+		list_del(&ireq->queue);
+		blk_start_queue(q);
+
+		spin_unlock_irqrestore(q->queue_lock, flags);
+		return -1;
+	}
+
+	/*
+	 *      Lets see what is cooking. We stuffed the
+	 *      request in the context.
+	 */
+
+	st = le32_to_cpu(msg->body[0]) >> 24;
+
+	if (st != 0) {
+		int err;
+		char *bsa_errors[] = {
+			"Success",
+			"Media Error",
+			"Failure communicating to device",
+			"Device Failure",
+			"Device is not ready",
+			"Media not present",
+			"Media is locked by another user",
+			"Media has failed",
+			"Failure communicating to device",
+			"Device bus failure",
+			"Device is locked by another user",
+			"Device is write protected",
+			"Device has reset",
+			"Volume has changed, waiting for acknowledgement"
+		};
+
+		err = le32_to_cpu(msg->body[0]) & 0xffff;
+
+		/*
+		 *      Device not ready means two things. One is that the
+		 *      the thing went offline (but not a removal media)
+		 *
+		 *      The second is that you have a SuperTrak 100 and the
+		 *      firmware got constipated. Unlike standard i2o card
+		 *      setups the supertrak returns an error rather than
+		 *      blocking for the timeout in these cases.
+		 *
+		 *      Don't stick a supertrak100 into cache aggressive modes
+		 */
+
+		osm_err("block-osm: /dev/%s error: %s", dev->gd->disk_name,
+			bsa_errors[le32_to_cpu(msg->body[0]) & 0xffff]);
+		if (le32_to_cpu(msg->body[0]) & 0x00ff0000)
+			printk(KERN_ERR " - DDM attempted %d retries",
+			       (le32_to_cpu(msg->body[0]) >> 16) & 0x00ff);
+		printk(KERN_ERR ".\n");
+		req->errors++;
+	} else
+		req->errors = 0;
+
+	if (!end_that_request_chunk
+	    (req, !req->errors, le32_to_cpu(msg->body[1]))) {
+		add_disk_randomness(req->rq_disk);
+		spin_lock_irqsave(q->queue_lock, flags);
+
+		end_that_request_last(req);
+
+		dev->open_queue_depth--;
+		list_del(&ireq->queue);
+		blk_start_queue(q);
+
+		spin_unlock_irqrestore(q->queue_lock, flags);
+
+		i2o_block_sglist_free(ireq);
+		i2o_block_request_free(ireq);
+	} else
+		osm_err("still remaining chunks\n");
+
+	return 1;
+};
+
+static void i2o_block_event(struct i2o_event *evt)
+{
+	osm_info("block-osm: event received\n");
+};
+
+/*
+ *	SCSI-CAM for ioctl geometry mapping
+ *	Duplicated with SCSI - this should be moved into somewhere common
+ *	perhaps genhd ?
+ *
+ * LBA -> CHS mapping table taken from:
+ *
+ * "Incorporating the I2O Architecture into BIOS for Intel Architecture
+ *  Platforms"
+ *
+ * This is an I2O document that is only available to I2O members,
+ * not developers.
+ *
+ * From my understanding, this is how all the I2O cards do this
+ *
+ * Disk Size      | Sectors | Heads | Cylinders
+ * ---------------+---------+-------+-------------------
+ * 1 < X <= 528M  | 63      | 16    | X/(63 * 16 * 512)
+ * 528M < X <= 1G | 63      | 32    | X/(63 * 32 * 512)
+ * 1 < X <528M    | 63      | 16    | X/(63 * 16 * 512)
+ * 1 < X <528M    | 63      | 16    | X/(63 * 16 * 512)
+ *
+ */
+#define	BLOCK_SIZE_528M		1081344
+#define	BLOCK_SIZE_1G		2097152
+#define	BLOCK_SIZE_21G		4403200
+#define	BLOCK_SIZE_42G		8806400
+#define	BLOCK_SIZE_84G		17612800
+
+static void i2o_block_biosparam(unsigned long capacity, unsigned short *cyls,
+				unsigned char *hds, unsigned char *secs)
+{
+	unsigned long heads, sectors, cylinders;
+
+	sectors = 63L;		/* Maximize sectors per track */
+	if (capacity <= BLOCK_SIZE_528M)
+		heads = 16;
+	else if (capacity <= BLOCK_SIZE_1G)
+		heads = 32;
+	else if (capacity <= BLOCK_SIZE_21G)
+		heads = 64;
+	else if (capacity <= BLOCK_SIZE_42G)
+		heads = 128;
+	else
+		heads = 255;
+
+	cylinders = (unsigned long)capacity / (heads * sectors);
+
+	*cyls = (unsigned short)cylinders;	/* Stuff return values */
+	*secs = (unsigned char)sectors;
+	*hds = (unsigned char)heads;
+}
+
+/**
+ *	i2o_block_open - Open the block device
+ *
+ *	Power up the device, mount and lock the media. This function is called,
+ *	if the block device is opened for access.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_open(struct inode *inode, struct file *file)
+{
+	struct i2o_block_device *dev = inode->i_bdev->bd_disk->private_data;
+
+	if (!dev->i2o_dev)
+		return -ENODEV;
+
+	if (dev->power > 0x1f)
+		i2o_block_device_power(dev, 0x02);
+
+	i2o_block_device_mount(dev->i2o_dev, -1);
+
+	i2o_block_device_lock(dev->i2o_dev, -1);
+
+	osm_debug("Ready.\n");
+
+	return 0;
+};
+
+/**
+ *	i2o_block_release - Release the I2O block device
+ *
+ *	Unlock and unmount the media, and power down the device. Gets called if
+ *	the block device is closed.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_release(struct inode *inode, struct file *file)
+{
+	struct gendisk *disk = inode->i_bdev->bd_disk;
+	struct i2o_block_device *dev = disk->private_data;
+	u8 operation;
+
+	/*
+	 * This is to deail with the case of an application
+	 * opening a device and then the device dissapears while
+	 * it's in use, and then the application tries to release
+	 * it.  ex: Unmounting a deleted RAID volume at reboot.
+	 * If we send messages, it will just cause FAILs since
+	 * the TID no longer exists.
+	 */
+	if (!dev->i2o_dev)
+		return 0;
+
+	i2o_block_device_flush(dev->i2o_dev);
+
+	i2o_block_device_unlock(dev->i2o_dev, -1);
+
+	if (dev->flags & (1 << 3 | 1 << 4))	/* Removable */
+		operation = 0x21;
+	else
+		operation = 0x24;
+
+	i2o_block_device_power(dev, operation);
+
+	return 0;
+}
+
+/**
+ *	i2o_block_ioctl - Issue device specific ioctl calls.
+ *	@cmd: ioctl command
+ *	@arg: arg
+ *
+ *	Handles ioctl request for the block device.
+ *
+ *	Return 0 on success or negative error on failure.
+ */
+static int i2o_block_ioctl(struct inode *inode, struct file *file,
+			   unsigned int cmd, unsigned long arg)
+{
+	struct gendisk *disk = inode->i_bdev->bd_disk;
+	struct i2o_block_device *dev = disk->private_data;
+	void __user *argp = (void __user *)arg;
+
+	/* Anyone capable of this syscall can do *real bad* things */
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	switch (cmd) {
+	case HDIO_GETGEO:
+		{
+			struct hd_geometry g;
+			i2o_block_biosparam(get_capacity(disk),
+					    &g.cylinders, &g.heads, &g.sectors);
+			g.start = get_start_sect(inode->i_bdev);
+			return copy_to_user(argp, &g, sizeof(g)) ? -EFAULT : 0;
+		}
+
+	case BLKI2OGRSTRAT:
+		return put_user(dev->rcache, (int __user *)arg);
+	case BLKI2OGWSTRAT:
+		return put_user(dev->wcache, (int __user *)arg);
+	case BLKI2OSRSTRAT:
+		if (arg < 0 || arg > CACHE_SMARTFETCH)
+			return -EINVAL;
+		dev->rcache = arg;
+		break;
+	case BLKI2OSWSTRAT:
+		if (arg != 0
+		    && (arg < CACHE_WRITETHROUGH || arg > CACHE_SMARTBACK))
+			return -EINVAL;
+		dev->wcache = arg;
+		break;
+	}
+	return -ENOTTY;
+};
+
+/**
+ *	i2o_block_media_changed - Have we seen a media change?
+ *	@disk: gendisk which should be verified
+ *
+ *	Verifies if the media has changed.
+ *
+ *	Returns 1 if the media was changed or 0 otherwise.
+ */
+static int i2o_block_media_changed(struct gendisk *disk)
+{
+	struct i2o_block_device *p = disk->private_data;
+
+	if (p->media_change_flag) {
+		p->media_change_flag = 0;
+		return 1;
+	}
+	return 0;
+}
+
+/**
+ *	i2o_block_transfer - Transfer a request to/from the I2O controller
+ *	@req: the request which should be transfered
+ *
+ *	This function converts the request into a I2O message. The necessary
+ *	DMA buffers are allocated and after everything is setup post the message
+ *	to the I2O controller. No cleanup is done by this function. It is done
+ *	on the interrupt side when the reply arrives.
+ *
+ *	Return 0 on success or negative error code on failure.
+ */
+static int i2o_block_transfer(struct request *req)
+{
+	struct i2o_block_device *dev = req->rq_disk->private_data;
+	struct i2o_controller *c = dev->i2o_dev->iop;
+	int tid = dev->i2o_dev->lct_data.tid;
+	struct i2o_message __iomem *msg;
+	void __iomem *mptr;
+	struct i2o_block_request *ireq = req->special;
+	struct scatterlist *sg;
+	int sgnum;
+	int i;
+	u32 m;
+	u32 tcntxt;
+	u32 sg_flags;
+	int rc;
+
+	m = i2o_msg_get(c, &msg);
+	if (m == I2O_QUEUE_EMPTY) {
+		rc = -EBUSY;
+		goto exit;
+	}
+
+	tcntxt = i2o_cntxt_list_add(c, req);
+	if (!tcntxt) {
+		rc = -ENOMEM;
+		goto nop_msg;
+	}
+
+	if ((sgnum = i2o_block_sglist_alloc(ireq)) <= 0) {
+		rc = -ENOMEM;
+		goto context_remove;
+	}
+
+	/* Build the message based on the request. */
+	writel(i2o_block_driver.context, &msg->u.s.icntxt);
+	writel(tcntxt, &msg->u.s.tcntxt);
+	writel(req->nr_sectors << 9, &msg->body[1]);
+
+	writel((((u64) req->sector) << 9) & 0xffffffff, &msg->body[2]);
+	writel(req->sector >> 23, &msg->body[3]);
+
+	mptr = &msg->body[4];
+
+	sg = ireq->sg_table;
+
+	if (rq_data_dir(req) == READ) {
+		writel(I2O_CMD_BLOCK_READ << 24 | HOST_TID << 12 | tid,
+		       &msg->u.head[1]);
+		sg_flags = 0x10000000;
+		switch (dev->rcache) {
+		case CACHE_NULL:
+			writel(0, &msg->body[0]);
+			break;
+		case CACHE_PREFETCH:
+			writel(0x201F0008, &msg->body[0]);
+			break;
+		case CACHE_SMARTFETCH:
+			if (req->nr_sectors > 16)
+				writel(0x201F0008, &msg->body[0]);
+			else
+				writel(0x001F0000, &msg->body[0]);
+			break;
+		}
+	} else {
+		writel(I2O_CMD_BLOCK_WRITE << 24 | HOST_TID << 12 | tid,
+		       &msg->u.head[1]);
+		sg_flags = 0x14000000;
+		switch (dev->wcache) {
+		case CACHE_NULL:
+			writel(0, &msg->body[0]);
+			break;
+		case CACHE_WRITETHROUGH:
+			writel(0x001F0008, &msg->body[0]);
+			break;
+		case CACHE_WRITEBACK:
+			writel(0x001F0010, &msg->body[0]);
+			break;
+		case CACHE_SMARTBACK:
+			if (req->nr_sectors > 16)
+				writel(0x001F0004, &msg->body[0]);
+			else
+				writel(0x001F0010, &msg->body[0]);
+			break;
+		case CACHE_SMARTTHROUGH:
+			if (req->nr_sectors > 16)
+				writel(0x001F0004, &msg->body[0]);
+			else
+				writel(0x001F0010, &msg->body[0]);
+		}
+	}
+
+	for (i = sgnum; i > 0; i--) {
+		if (i == 1)
+			sg_flags |= 0x80000000;
+		writel(sg_flags | sg_dma_len(sg), mptr);
+		writel(sg_dma_address(sg), mptr + 4);
+		mptr += 8;
+		sg++;
+	}
+
+	writel(I2O_MESSAGE_SIZE
+	       (((unsigned long)mptr -
+		 (unsigned long)&msg->u.head[0]) >> 2) | SGL_OFFSET_8,
+	       &msg->u.head[0]);
+
+	list_add_tail(&ireq->queue, &dev->open_queue);
+	dev->open_queue_depth++;
+
+	i2o_msg_post(c, m);
+
+	return 0;
+
+      context_remove:
+	i2o_cntxt_list_remove(c, req);
+
+      nop_msg:
+	i2o_msg_nop(c, m);
+
+      exit:
+	return rc;
+};
+
+/**
+ *	i2o_block_request_fn - request queue handling function
+ *	q: request queue from which the request could be fetched
+ *
+ *	Takes the next request from the queue, transfers it and if no error
+ *	occurs dequeue it from the queue. On arrival of the reply the message
+ *	will be processed further. If an error occurs requeue the request.
+ */
+static void i2o_block_request_fn(struct request_queue *q)
+{
+	struct request *req;
+
+	while (!blk_queue_plugged(q)) {
+		req = elv_next_request(q);
+		if (!req)
+			break;
+
+		if (blk_fs_request(req)) {
+			struct i2o_block_delayed_request *dreq;
+			struct i2o_block_request *ireq = req->special;
+			unsigned int queue_depth;
+
+			queue_depth = ireq->i2o_blk_dev->open_queue_depth;
+
+			if (queue_depth < I2O_BLOCK_MAX_OPEN_REQUESTS)
+				if (!i2o_block_transfer(req)) {
+					blkdev_dequeue_request(req);
+					continue;
+				}
+
+			if (queue_depth)
+				break;
+
+			/* stop the queue and retry later */
+			dreq = kmalloc(sizeof(*dreq), GFP_ATOMIC);
+			if (!dreq)
+				continue;
+
+			dreq->queue = q;
+			INIT_WORK(&dreq->work, i2o_block_delayed_request_fn,
+				  dreq);
+
+			osm_info("transfer error\n");
+			if (!queue_delayed_work(i2o_block_driver.event_queue,
+						&dreq->work,
+						I2O_BLOCK_RETRY_TIME))
+				kfree(dreq);
+			else {
+				blk_stop_queue(q);
+				break;
+			}
+		} else
+			end_request(req, 0);
+	}
+};
+
+/* I2O Block device operations definition */
+static struct block_device_operations i2o_block_fops = {
+	.owner = THIS_MODULE,
+	.open = i2o_block_open,
+	.release = i2o_block_release,
+	.ioctl = i2o_block_ioctl,
+	.media_changed = i2o_block_media_changed
+};
+
+/**
+ *	i2o_block_device_alloc - Allocate memory for a I2O Block device
+ *
+ *	Allocate memory for the i2o_block_device struct, gendisk and request
+ *	queue and initialize them as far as no additional information is needed.
+ *
+ *	Returns a pointer to the allocated I2O Block device on succes or a
+ *	negative error code on failure.
+ */
+static struct i2o_block_device *i2o_block_device_alloc(void)
+{
+	struct i2o_block_device *dev;
+	struct gendisk *gd;
+	struct request_queue *queue;
+	int rc;
+
+	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		osm_err("Insufficient memory to allocate I2O Block disk.\n");
+		rc = -ENOMEM;
+		goto exit;
+	}
+	memset(dev, 0, sizeof(*dev));
+
+	INIT_LIST_HEAD(&dev->open_queue);
+	spin_lock_init(&dev->lock);
+	dev->rcache = CACHE_PREFETCH;
+	dev->wcache = CACHE_WRITEBACK;
+
+	/* allocate a gendisk with 16 partitions */
+	gd = alloc_disk(16);
+	if (!gd) {
+		osm_err("Insufficient memory to allocate gendisk.\n");
+		rc = -ENOMEM;
+		goto cleanup_dev;
+	}
+
+	/* initialize the request queue */
+	queue = blk_init_queue(i2o_block_request_fn, &dev->lock);
+	if (!queue) {
+		osm_err("Insufficient memory to allocate request queue.\n");
+		rc = -ENOMEM;
+		goto cleanup_queue;
+	}
+
+	blk_queue_prep_rq(queue, i2o_block_prep_req_fn);
+
+	gd->major = I2O_MAJOR;
+	gd->queue = queue;
+	gd->fops = &i2o_block_fops;
+	gd->private_data = dev;
+
+	dev->gd = gd;
+
+	return dev;
+
+      cleanup_queue:
+	put_disk(gd);
+
+      cleanup_dev:
+	kfree(dev);
+
+      exit:
+	return ERR_PTR(rc);
+};
+
+/**
+ *	i2o_block_probe - verify if dev is a I2O Block device and install it
+ *	@dev: device to verify if it is a I2O Block device
+ *
+ *	We only verify if the user_tid of the device is 0xfff and then install
+ *	the device. Otherwise it is used by some other device (e. g. RAID).
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_probe(struct device *dev)
+{
+	struct i2o_device *i2o_dev = to_i2o_device(dev);
+	struct i2o_block_device *i2o_blk_dev;
+	struct i2o_controller *c = i2o_dev->iop;
+	struct gendisk *gd;
+	struct request_queue *queue;
+	static int unit = 0;
+	int rc;
+	u64 size;
+	u32 blocksize;
+	u16 power;
+	u32 flags, status;
+	int segments;
+
+	/* skip devices which are used by IOP */
+	if (i2o_dev->lct_data.user_tid != 0xfff) {
+		osm_debug("skipping used device %03x\n", i2o_dev->lct_data.tid);
+		return -ENODEV;
+	}
+
+	osm_info("New device detected (TID: %03x)\n", i2o_dev->lct_data.tid);
+
+	if (i2o_device_claim(i2o_dev)) {
+		osm_warn("Unable to claim device. Installation aborted\n");
+		rc = -EFAULT;
+		goto exit;
+	}
+
+	i2o_blk_dev = i2o_block_device_alloc();
+	if (IS_ERR(i2o_blk_dev)) {
+		osm_err("could not alloc a new I2O block device");
+		rc = PTR_ERR(i2o_blk_dev);
+		goto claim_release;
+	}
+
+	i2o_blk_dev->i2o_dev = i2o_dev;
+	dev_set_drvdata(dev, i2o_blk_dev);
+
+	/* setup gendisk */
+	gd = i2o_blk_dev->gd;
+	gd->first_minor = unit << 4;
+	sprintf(gd->disk_name, "i2o/hd%c", 'a' + unit);
+	sprintf(gd->devfs_name, "i2o/hd%c", 'a' + unit);
+	gd->driverfs_dev = &i2o_dev->device;
+
+	/* setup request queue */
+	queue = gd->queue;
+	queue->queuedata = i2o_blk_dev;
+
+	blk_queue_max_phys_segments(queue, I2O_MAX_SEGMENTS);
+	blk_queue_max_sectors(queue, I2O_MAX_SECTORS);
+
+	if (c->short_req)
+		segments = 8;
+	else {
+		i2o_status_block *sb;
+
+		sb = c->status_block.virt;
+
+		segments = (sb->inbound_frame_size -
+			    sizeof(struct i2o_message) / 4 - 4) / 2;
+	}
+
+	blk_queue_max_hw_segments(queue, segments);
+
+	osm_debug("max sectors = %d\n", I2O_MAX_SECTORS);
+	osm_debug("phys segments = %d\n", I2O_MAX_SEGMENTS);
+	osm_debug("hw segments = %d\n", segments);
+
+	/*
+	 *      Ask for the current media data. If that isn't supported
+	 *      then we ask for the device capacity data
+	 */
+	if (i2o_parm_field_get(i2o_dev, 0x0004, 1, &blocksize, 4) != 0
+	    || i2o_parm_field_get(i2o_dev, 0x0004, 0, &size, 8) != 0) {
+		i2o_parm_field_get(i2o_dev, 0x0000, 3, &blocksize, 4);
+		i2o_parm_field_get(i2o_dev, 0x0000, 4, &size, 8);
+	}
+	osm_debug("blocksize = %d\n", blocksize);
+
+	if (i2o_parm_field_get(i2o_dev, 0x0000, 2, &power, 2))
+		power = 0;
+	i2o_parm_field_get(i2o_dev, 0x0000, 5, &flags, 4);
+	i2o_parm_field_get(i2o_dev, 0x0000, 6, &status, 4);
+
+	set_capacity(gd, size >> 9);
+
+	i2o_event_register(i2o_dev, &i2o_block_driver, 0, 0xffffffff);
+
+	add_disk(gd);
+
+	unit++;
+
+	return 0;
+
+      claim_release:
+	i2o_device_claim_release(i2o_dev);
+
+      exit:
+	return rc;
+};
+
+/* Block OSM driver struct */
+static struct i2o_driver i2o_block_driver = {
+	.name = OSM_NAME,
+	.event = i2o_block_event,
+	.reply = i2o_block_reply,
+	.classes = i2o_block_class_id,
+	.driver = {
+		   .probe = i2o_block_probe,
+		   .remove = i2o_block_remove,
+		   },
+};
+
+/**
+ *	i2o_block_init - Block OSM initialization function
+ *
+ *	Allocate the slab and mempool for request structs, registers i2o_block
+ *	block device and finally register the Block OSM in the I2O core.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_block_init(void)
+{
+	int rc;
+	int size;
+
+	printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+	/* Allocate request mempool and slab */
+	size = sizeof(struct i2o_block_request);
+	i2o_blk_req_pool.slab = kmem_cache_create("i2o_block_req", size, 0,
+						  SLAB_HWCACHE_ALIGN, NULL,
+						  NULL);
+	if (!i2o_blk_req_pool.slab) {
+		osm_err("can't init request slab\n");
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	i2o_blk_req_pool.pool = mempool_create(I2O_REQ_MEMPOOL_SIZE,
+					       mempool_alloc_slab,
+					       mempool_free_slab,
+					       i2o_blk_req_pool.slab);
+	if (!i2o_blk_req_pool.pool) {
+		osm_err("can't init request mempool\n");
+		rc = -ENOMEM;
+		goto free_slab;
+	}
+
+	/* Register the block device interfaces */
+	rc = register_blkdev(I2O_MAJOR, "i2o_block");
+	if (rc) {
+		osm_err("unable to register block device\n");
+		goto free_mempool;
+	}
+#ifdef MODULE
+	osm_info("registered device at major %d\n", I2O_MAJOR);
+#endif
+
+	/* Register Block OSM into I2O core */
+	rc = i2o_driver_register(&i2o_block_driver);
+	if (rc) {
+		osm_err("Could not register Block driver\n");
+		goto unregister_blkdev;
+	}
+
+	return 0;
+
+      unregister_blkdev:
+	unregister_blkdev(I2O_MAJOR, "i2o_block");
+
+      free_mempool:
+	mempool_destroy(i2o_blk_req_pool.pool);
+
+      free_slab:
+	kmem_cache_destroy(i2o_blk_req_pool.slab);
+
+      exit:
+	return rc;
+};
+
+/**
+ *	i2o_block_exit - Block OSM exit function
+ *
+ *	Unregisters Block OSM from I2O core, unregisters i2o_block block device
+ *	and frees the mempool and slab.
+ */
+static void __exit i2o_block_exit(void)
+{
+	/* Unregister I2O Block OSM from I2O core */
+	i2o_driver_unregister(&i2o_block_driver);
+
+	/* Unregister block device */
+	unregister_blkdev(I2O_MAJOR, "i2o_block");
+
+	/* Free request mempool and slab */
+	mempool_destroy(i2o_blk_req_pool.pool);
+	kmem_cache_destroy(i2o_blk_req_pool.slab);
+};
+
+MODULE_AUTHOR("Red Hat");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_block_init);
+module_exit(i2o_block_exit);
diff --git a/drivers/message/i2o/i2o_block.h b/drivers/message/i2o/i2o_block.h
new file mode 100644
index 000000000000..ddd9a15679c0
--- /dev/null
+++ b/drivers/message/i2o/i2o_block.h
@@ -0,0 +1,99 @@
+/*
+ *	Block OSM structures/API
+ *
+ * 	Copyright (C) 1999-2002	Red Hat Software
+ *
+ *	Written by Alan Cox, Building Number Three Ltd
+ *
+ *	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.
+ *
+ *	For the purpose of avoiding doubt the preferred form of the work
+ *	for making modifications shall be a standards compliant form such
+ *	gzipped tar and not one requiring a proprietary or patent encumbered
+ *	tool to unpack.
+ *
+ *	Fixes/additions:
+ *		Steve Ralston:
+ *			Multiple device handling error fixes,
+ *			Added a queue depth.
+ *		Alan Cox:
+ *			FC920 has an rmw bug. Dont or in the end marker.
+ *			Removed queue walk, fixed for 64bitness.
+ *			Rewrote much of the code over time
+ *			Added indirect block lists
+ *			Handle 64K limits on many controllers
+ *			Don't use indirects on the Promise (breaks)
+ *			Heavily chop down the queue depths
+ *		Deepak Saxena:
+ *			Independent queues per IOP
+ *			Support for dynamic device creation/deletion
+ *			Code cleanup
+ *	    		Support for larger I/Os through merge* functions
+ *			(taken from DAC960 driver)
+ *		Boji T Kannanthanam:
+ *			Set the I2O Block devices to be detected in increasing
+ *			order of TIDs during boot.
+ *			Search and set the I2O block device that we boot off
+ *			from as the first device to be claimed (as /dev/i2o/hda)
+ *			Properly attach/detach I2O gendisk structure from the
+ *			system gendisk list. The I2O block devices now appear in
+ *			/proc/partitions.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Minor bugfixes for 2.6.
+ */
+
+#ifndef I2O_BLOCK_OSM_H
+#define I2O_BLOCK_OSM_H
+
+#define I2O_BLOCK_RETRY_TIME HZ/4
+#define I2O_BLOCK_MAX_OPEN_REQUESTS 50
+
+/* I2O Block OSM mempool struct */
+struct i2o_block_mempool {
+	kmem_cache_t	*slab;
+	mempool_t	*pool;
+};
+
+/* I2O Block device descriptor */
+struct i2o_block_device {
+	struct i2o_device *i2o_dev;	/* pointer to I2O device */
+	struct gendisk *gd;
+	spinlock_t lock;		/* queue lock */
+	struct list_head open_queue;	/* list of transfered, but unfinished
+					   requests */
+	unsigned int open_queue_depth;	/* number of requests in the queue */
+
+	int rcache;			/* read cache flags */
+	int wcache;			/* write cache flags */
+	int flags;
+	int power;			/* power state */
+	int media_change_flag;		/* media changed flag */
+};
+
+/* I2O Block device request */
+struct i2o_block_request
+{
+	struct list_head queue;
+	struct request *req;		/* corresponding request */
+	struct i2o_block_device *i2o_blk_dev;	/* I2O block device */
+	int sg_dma_direction;		/* direction of DMA buffer read/write */
+	int sg_nents;			/* number of SG elements */
+	struct scatterlist sg_table[I2O_MAX_SEGMENTS]; /* SG table */
+};
+
+/* I2O Block device delayed request */
+struct i2o_block_delayed_request
+{
+	struct work_struct work;
+	struct request_queue *queue;
+};
+
+#endif
diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
new file mode 100644
index 000000000000..5fc5004ea07a
--- /dev/null
+++ b/drivers/message/i2o/i2o_config.c
@@ -0,0 +1,1160 @@
+/*
+ * I2O Configuration Interface Driver
+ *
+ * (C) Copyright 1999-2002  Red Hat
+ *
+ * Written by Alan Cox, Building Number Three Ltd
+ *
+ * Fixes/additions:
+ *	Deepak Saxena (04/20/1999):
+ *		Added basic ioctl() support
+ *	Deepak Saxena (06/07/1999):
+ *		Added software download ioctl (still testing)
+ *	Auvo Häkkinen (09/10/1999):
+ *		Changes to i2o_cfg_reply(), ioctl_parms()
+ *		Added ioct_validate()
+ *	Taneli Vähäkangas (09/30/1999):
+ *		Fixed ioctl_swdl()
+ *	Taneli Vähäkangas (10/04/1999):
+ *		Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
+ *	Deepak Saxena (11/18/1999):
+ *		Added event managmenet support
+ *	Alan Cox <alan@redhat.com>:
+ *		2.4 rewrite ported to 2.5
+ *	Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *		Added pass-thru support for Adaptec's raidutils
+ *
+ * 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.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/i2o.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+#include <linux/ioctl32.h>
+#include <linux/compat.h>
+#include <linux/syscalls.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#define OSM_NAME	"config-osm"
+#define OSM_VERSION	"$Rev$"
+#define OSM_DESCRIPTION	"I2O Configuration OSM"
+
+extern int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int);
+
+static spinlock_t i2o_config_lock;
+
+#define MODINC(x,y) ((x) = ((x) + 1) % (y))
+
+struct sg_simple_element {
+	u32 flag_count;
+	u32 addr_bus;
+};
+
+struct i2o_cfg_info {
+	struct file *fp;
+	struct fasync_struct *fasync;
+	struct i2o_evt_info event_q[I2O_EVT_Q_LEN];
+	u16 q_in;		// Queue head index
+	u16 q_out;		// Queue tail index
+	u16 q_len;		// Queue length
+	u16 q_lost;		// Number of lost events
+	ulong q_id;		// Event queue ID...used as tx_context
+	struct i2o_cfg_info *next;
+};
+static struct i2o_cfg_info *open_files = NULL;
+static ulong i2o_cfg_info_id = 0;
+
+/*
+ *	Each of these describes an i2o message handler. They are
+ *	multiplexed by the i2o_core code
+ */
+
+static struct i2o_driver i2o_config_driver = {
+	.name = OSM_NAME
+};
+
+static int i2o_cfg_getiops(unsigned long arg)
+{
+	struct i2o_controller *c;
+	u8 __user *user_iop_table = (void __user *)arg;
+	u8 tmp[MAX_I2O_CONTROLLERS];
+	int ret = 0;
+
+	memset(tmp, 0, MAX_I2O_CONTROLLERS);
+
+	list_for_each_entry(c, &i2o_controllers, list)
+	    tmp[c->unit] = 1;
+
+	if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS))
+		ret = -EFAULT;
+
+	return ret;
+};
+
+static int i2o_cfg_gethrt(unsigned long arg)
+{
+	struct i2o_controller *c;
+	struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
+	struct i2o_cmd_hrtlct kcmd;
+	i2o_hrt *hrt;
+	int len;
+	u32 reslen;
+	int ret = 0;
+
+	if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
+		return -EFAULT;
+
+	if (get_user(reslen, kcmd.reslen) < 0)
+		return -EFAULT;
+
+	if (kcmd.resbuf == NULL)
+		return -EFAULT;
+
+	c = i2o_find_iop(kcmd.iop);
+	if (!c)
+		return -ENXIO;
+
+	hrt = (i2o_hrt *) c->hrt.virt;
+
+	len = 8 + ((hrt->entry_len * hrt->num_entries) << 2);
+
+	/* We did a get user...so assuming mem is ok...is this bad? */
+	put_user(len, kcmd.reslen);
+	if (len > reslen)
+		ret = -ENOBUFS;
+	if (copy_to_user(kcmd.resbuf, (void *)hrt, len))
+		ret = -EFAULT;
+
+	return ret;
+};
+
+static int i2o_cfg_getlct(unsigned long arg)
+{
+	struct i2o_controller *c;
+	struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
+	struct i2o_cmd_hrtlct kcmd;
+	i2o_lct *lct;
+	int len;
+	int ret = 0;
+	u32 reslen;
+
+	if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
+		return -EFAULT;
+
+	if (get_user(reslen, kcmd.reslen) < 0)
+		return -EFAULT;
+
+	if (kcmd.resbuf == NULL)
+		return -EFAULT;
+
+	c = i2o_find_iop(kcmd.iop);
+	if (!c)
+		return -ENXIO;
+
+	lct = (i2o_lct *) c->lct;
+
+	len = (unsigned int)lct->table_size << 2;
+	put_user(len, kcmd.reslen);
+	if (len > reslen)
+		ret = -ENOBUFS;
+	else if (copy_to_user(kcmd.resbuf, lct, len))
+		ret = -EFAULT;
+
+	return ret;
+};
+
+static int i2o_cfg_parms(unsigned long arg, unsigned int type)
+{
+	int ret = 0;
+	struct i2o_controller *c;
+	struct i2o_device *dev;
+	struct i2o_cmd_psetget __user *cmd =
+	    (struct i2o_cmd_psetget __user *)arg;
+	struct i2o_cmd_psetget kcmd;
+	u32 reslen;
+	u8 *ops;
+	u8 *res;
+	int len = 0;
+
+	u32 i2o_cmd = (type == I2OPARMGET ?
+		       I2O_CMD_UTIL_PARAMS_GET : I2O_CMD_UTIL_PARAMS_SET);
+
+	if (copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
+		return -EFAULT;
+
+	if (get_user(reslen, kcmd.reslen))
+		return -EFAULT;
+
+	c = i2o_find_iop(kcmd.iop);
+	if (!c)
+		return -ENXIO;
+
+	dev = i2o_iop_find_device(c, kcmd.tid);
+	if (!dev)
+		return -ENXIO;
+
+	ops = (u8 *) kmalloc(kcmd.oplen, GFP_KERNEL);
+	if (!ops)
+		return -ENOMEM;
+
+	if (copy_from_user(ops, kcmd.opbuf, kcmd.oplen)) {
+		kfree(ops);
+		return -EFAULT;
+	}
+
+	/*
+	 * It's possible to have a _very_ large table
+	 * and that the user asks for all of it at once...
+	 */
+	res = (u8 *) kmalloc(65536, GFP_KERNEL);
+	if (!res) {
+		kfree(ops);
+		return -ENOMEM;
+	}
+
+	len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
+	kfree(ops);
+
+	if (len < 0) {
+		kfree(res);
+		return -EAGAIN;
+	}
+
+	put_user(len, kcmd.reslen);
+	if (len > reslen)
+		ret = -ENOBUFS;
+	else if (copy_to_user(kcmd.resbuf, res, len))
+		ret = -EFAULT;
+
+	kfree(res);
+
+	return ret;
+};
+
+static int i2o_cfg_swdl(unsigned long arg)
+{
+	struct i2o_sw_xfer kxfer;
+	struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
+	unsigned char maxfrag = 0, curfrag = 1;
+	struct i2o_dma buffer;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	unsigned int status = 0, swlen = 0, fragsize = 8192;
+	struct i2o_controller *c;
+
+	if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+		return -EFAULT;
+
+	if (get_user(swlen, kxfer.swlen) < 0)
+		return -EFAULT;
+
+	if (get_user(maxfrag, kxfer.maxfrag) < 0)
+		return -EFAULT;
+
+	if (get_user(curfrag, kxfer.curfrag) < 0)
+		return -EFAULT;
+
+	if (curfrag == maxfrag)
+		fragsize = swlen - (maxfrag - 1) * 8192;
+
+	if (!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
+		return -EFAULT;
+
+	c = i2o_find_iop(kxfer.iop);
+	if (!c)
+		return -ENXIO;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -EBUSY;
+
+	if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
+		i2o_msg_nop(c, m);
+		return -ENOMEM;
+	}
+
+	__copy_from_user(buffer.virt, kxfer.buf, fragsize);
+
+	writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
+	writel(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(i2o_config_driver.context, &msg->u.head[2]);
+	writel(0, &msg->u.head[3]);
+	writel((((u32) kxfer.flags) << 24) | (((u32) kxfer.sw_type) << 16) |
+	       (((u32) maxfrag) << 8) | (((u32) curfrag)), &msg->body[0]);
+	writel(swlen, &msg->body[1]);
+	writel(kxfer.sw_id, &msg->body[2]);
+	writel(0xD0000000 | fragsize, &msg->body[3]);
+	writel(buffer.phys, &msg->body[4]);
+
+	osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+	status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
+
+	if (status != -ETIMEDOUT)
+		i2o_dma_free(&c->pdev->dev, &buffer);
+
+	if (status != I2O_POST_WAIT_OK) {
+		// it fails if you try and send frags out of order
+		// and for some yet unknown reasons too
+		osm_info("swdl failed, DetailedStatus = %d\n", status);
+		return status;
+	}
+
+	return 0;
+};
+
+static int i2o_cfg_swul(unsigned long arg)
+{
+	struct i2o_sw_xfer kxfer;
+	struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
+	unsigned char maxfrag = 0, curfrag = 1;
+	struct i2o_dma buffer;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	unsigned int status = 0, swlen = 0, fragsize = 8192;
+	struct i2o_controller *c;
+	int ret = 0;
+
+	if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+		goto return_fault;
+
+	if (get_user(swlen, kxfer.swlen) < 0)
+		goto return_fault;
+
+	if (get_user(maxfrag, kxfer.maxfrag) < 0)
+		goto return_fault;
+
+	if (get_user(curfrag, kxfer.curfrag) < 0)
+		goto return_fault;
+
+	if (curfrag == maxfrag)
+		fragsize = swlen - (maxfrag - 1) * 8192;
+
+	if (!kxfer.buf)
+		goto return_fault;
+
+	c = i2o_find_iop(kxfer.iop);
+	if (!c)
+		return -ENXIO;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -EBUSY;
+
+	if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
+		i2o_msg_nop(c, m);
+		return -ENOMEM;
+	}
+
+	writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->u.head[0]);
+	writel(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(i2o_config_driver.context, &msg->u.head[2]);
+	writel(0, &msg->u.head[3]);
+	writel((u32) kxfer.flags << 24 | (u32) kxfer.
+	       sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag,
+	       &msg->body[0]);
+	writel(swlen, &msg->body[1]);
+	writel(kxfer.sw_id, &msg->body[2]);
+	writel(0xD0000000 | fragsize, &msg->body[3]);
+	writel(buffer.phys, &msg->body[4]);
+
+	osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+	status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
+
+	if (status != I2O_POST_WAIT_OK) {
+		if (status != -ETIMEDOUT)
+			i2o_dma_free(&c->pdev->dev, &buffer);
+
+		osm_info("swul failed, DetailedStatus = %d\n", status);
+		return status;
+	}
+
+	if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
+		ret = -EFAULT;
+
+	i2o_dma_free(&c->pdev->dev, &buffer);
+
+return_ret:
+	return ret;
+return_fault:
+	ret = -EFAULT;
+	goto return_ret;
+};
+
+static int i2o_cfg_swdel(unsigned long arg)
+{
+	struct i2o_controller *c;
+	struct i2o_sw_xfer kxfer;
+	struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	unsigned int swlen;
+	int token;
+
+	if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+		return -EFAULT;
+
+	if (get_user(swlen, kxfer.swlen) < 0)
+		return -EFAULT;
+
+	c = i2o_find_iop(kxfer.iop);
+	if (!c)
+		return -ENXIO;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -EBUSY;
+
+	writel(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(i2o_config_driver.context, &msg->u.head[2]);
+	writel(0, &msg->u.head[3]);
+	writel((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16,
+	       &msg->body[0]);
+	writel(swlen, &msg->body[1]);
+	writel(kxfer.sw_id, &msg->body[2]);
+
+	token = i2o_msg_post_wait(c, m, 10);
+
+	if (token != I2O_POST_WAIT_OK) {
+		osm_info("swdel failed, DetailedStatus = %d\n", token);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+};
+
+static int i2o_cfg_validate(unsigned long arg)
+{
+	int token;
+	int iop = (int)arg;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	struct i2o_controller *c;
+
+	c = i2o_find_iop(iop);
+	if (!c)
+		return -ENXIO;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -EBUSY;
+
+	writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop,
+	       &msg->u.head[1]);
+	writel(i2o_config_driver.context, &msg->u.head[2]);
+	writel(0, &msg->u.head[3]);
+
+	token = i2o_msg_post_wait(c, m, 10);
+
+	if (token != I2O_POST_WAIT_OK) {
+		osm_info("Can't validate configuration, ErrorStatus = %d\n",
+			 token);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+};
+
+static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
+	struct i2o_evt_id kdesc;
+	struct i2o_controller *c;
+	struct i2o_device *d;
+
+	if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
+		return -EFAULT;
+
+	/* IOP exists? */
+	c = i2o_find_iop(kdesc.iop);
+	if (!c)
+		return -ENXIO;
+
+	/* Device exists? */
+	d = i2o_iop_find_device(c, kdesc.tid);
+	if (!d)
+		return -ENODEV;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -EBUSY;
+
+	writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | kdesc.tid,
+	       &msg->u.head[1]);
+	writel(i2o_config_driver.context, &msg->u.head[2]);
+	writel(i2o_cntxt_list_add(c, fp->private_data), &msg->u.head[3]);
+	writel(kdesc.evt_mask, &msg->body[0]);
+
+	i2o_msg_post(c, m);
+
+	return 0;
+}
+
+static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
+{
+	struct i2o_cfg_info *p = NULL;
+	struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
+	struct i2o_evt_get kget;
+	unsigned long flags;
+
+	for (p = open_files; p; p = p->next)
+		if (p->q_id == (ulong) fp->private_data)
+			break;
+
+	if (!p->q_len)
+		return -ENOENT;
+
+	memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
+	MODINC(p->q_out, I2O_EVT_Q_LEN);
+	spin_lock_irqsave(&i2o_config_lock, flags);
+	p->q_len--;
+	kget.pending = p->q_len;
+	kget.lost = p->q_lost;
+	spin_unlock_irqrestore(&i2o_config_lock, flags);
+
+	if (copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
+		return -EFAULT;
+	return 0;
+}
+
+#ifdef CONFIG_COMPAT
+static int i2o_cfg_passthru32(unsigned fd, unsigned cmnd, unsigned long arg,
+			      struct file *file)
+{
+	struct i2o_cmd_passthru32 __user *cmd;
+	struct i2o_controller *c;
+	u32 __user *user_msg;
+	u32 *reply = NULL;
+	u32 __user *user_reply = NULL;
+	u32 size = 0;
+	u32 reply_size = 0;
+	u32 rcode = 0;
+	struct i2o_dma sg_list[SG_TABLESIZE];
+	u32 sg_offset = 0;
+	u32 sg_count = 0;
+	u32 i = 0;
+	i2o_status_block *sb;
+	struct i2o_message *msg;
+	u32 m;
+	unsigned int iop;
+
+	cmd = (struct i2o_cmd_passthru32 __user *)arg;
+
+	if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
+		return -EFAULT;
+
+	user_msg = compat_ptr(i);
+
+	c = i2o_find_iop(iop);
+	if (!c) {
+		osm_debug("controller %d not found\n", iop);
+		return -ENXIO;
+	}
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+
+	sb = c->status_block.virt;
+
+	if (get_user(size, &user_msg[0])) {
+		osm_warn("unable to get size!\n");
+		return -EFAULT;
+	}
+	size = size >> 16;
+
+	if (size > sb->inbound_frame_size) {
+		osm_warn("size of message > inbound_frame_size");
+		return -EFAULT;
+	}
+
+	user_reply = &user_msg[size];
+
+	size <<= 2;		// Convert to bytes
+
+	/* Copy in the user's I2O command */
+	if (copy_from_user(msg, user_msg, size)) {
+		osm_warn("unable to copy user message\n");
+		return -EFAULT;
+	}
+	i2o_dump_message(msg);
+
+	if (get_user(reply_size, &user_reply[0]) < 0)
+		return -EFAULT;
+
+	reply_size >>= 16;
+	reply_size <<= 2;
+
+	reply = kmalloc(reply_size, GFP_KERNEL);
+	if (!reply) {
+		printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
+		       c->name);
+		return -ENOMEM;
+	}
+	memset(reply, 0, reply_size);
+
+	sg_offset = (msg->u.head[0] >> 4) & 0x0f;
+
+	writel(i2o_config_driver.context, &msg->u.s.icntxt);
+	writel(i2o_cntxt_list_add(c, reply), &msg->u.s.tcntxt);
+
+	memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
+	if (sg_offset) {
+		struct sg_simple_element *sg;
+
+		if (sg_offset * 4 >= size) {
+			rcode = -EFAULT;
+			goto cleanup;
+		}
+		// TODO 64bit fix
+		sg = (struct sg_simple_element *)((&msg->u.head[0]) +
+						  sg_offset);
+		sg_count =
+		    (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+		if (sg_count > SG_TABLESIZE) {
+			printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
+			       c->name, sg_count);
+			kfree(reply);
+			return -EINVAL;
+		}
+
+		for (i = 0; i < sg_count; i++) {
+			int sg_size;
+			struct i2o_dma *p;
+
+			if (!(sg[i].flag_count & 0x10000000
+			      /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
+				printk(KERN_DEBUG
+				       "%s:Bad SG element %d - not simple (%x)\n",
+				       c->name, i, sg[i].flag_count);
+				rcode = -EINVAL;
+				goto cleanup;
+			}
+			sg_size = sg[i].flag_count & 0xffffff;
+			p = &(sg_list[i]);
+			/* Allocate memory for the transfer */
+			if (i2o_dma_alloc
+			    (&c->pdev->dev, p, sg_size,
+			     PCI_DMA_BIDIRECTIONAL)) {
+				printk(KERN_DEBUG
+				       "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+				       c->name, sg_size, i, sg_count);
+				rcode = -ENOMEM;
+				goto cleanup;
+			}
+			/* Copy in the user's SG buffer if necessary */
+			if (sg[i].
+			    flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
+				// TODO 64bit fix
+				if (copy_from_user
+				    (p->virt, (void __user *)(unsigned long)sg[i].addr_bus,
+				     sg_size)) {
+					printk(KERN_DEBUG
+					       "%s: Could not copy SG buf %d FROM user\n",
+					       c->name, i);
+					rcode = -EFAULT;
+					goto cleanup;
+				}
+			}
+			//TODO 64bit fix
+			sg[i].addr_bus = (u32) p->phys;
+		}
+	}
+
+	rcode = i2o_msg_post_wait(c, m, 60);
+	if (rcode)
+		goto cleanup;
+
+	if (sg_offset) {
+		u32 msg[128];
+		/* Copy back the Scatter Gather buffers back to user space */
+		u32 j;
+		// TODO 64bit fix
+		struct sg_simple_element *sg;
+		int sg_size;
+
+		// re-acquire the original message to handle correctly the sg copy operation
+		memset(&msg, 0, MSG_FRAME_SIZE * 4);
+		// get user msg size in u32s
+		if (get_user(size, &user_msg[0])) {
+			rcode = -EFAULT;
+			goto cleanup;
+		}
+		size = size >> 16;
+		size *= 4;
+		/* Copy in the user's I2O command */
+		if (copy_from_user(msg, user_msg, size)) {
+			rcode = -EFAULT;
+			goto cleanup;
+		}
+		sg_count =
+		    (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+
+		// TODO 64bit fix
+		sg = (struct sg_simple_element *)(msg + sg_offset);
+		for (j = 0; j < sg_count; j++) {
+			/* Copy out the SG list to user's buffer if necessary */
+			if (!
+			    (sg[j].
+			     flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
+				sg_size = sg[j].flag_count & 0xffffff;
+				// TODO 64bit fix
+				if (copy_to_user
+				    ((void __user *)(u64) sg[j].addr_bus,
+				     sg_list[j].virt, sg_size)) {
+					printk(KERN_WARNING
+					       "%s: Could not copy %p TO user %x\n",
+					       c->name, sg_list[j].virt,
+					       sg[j].addr_bus);
+					rcode = -EFAULT;
+					goto cleanup;
+				}
+			}
+		}
+	}
+
+	/* Copy back the reply to user space */
+	if (reply_size) {
+		// we wrote our own values for context - now restore the user supplied ones
+		if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
+			printk(KERN_WARNING
+			       "%s: Could not copy message context FROM user\n",
+			       c->name);
+			rcode = -EFAULT;
+		}
+		if (copy_to_user(user_reply, reply, reply_size)) {
+			printk(KERN_WARNING
+			       "%s: Could not copy reply TO user\n", c->name);
+			rcode = -EFAULT;
+		}
+	}
+
+      cleanup:
+	kfree(reply);
+	return rcode;
+}
+
+#else
+
+static int i2o_cfg_passthru(unsigned long arg)
+{
+	struct i2o_cmd_passthru __user *cmd =
+	    (struct i2o_cmd_passthru __user *)arg;
+	struct i2o_controller *c;
+	u32 __user *user_msg;
+	u32 *reply = NULL;
+	u32 __user *user_reply = NULL;
+	u32 size = 0;
+	u32 reply_size = 0;
+	u32 rcode = 0;
+	void *sg_list[SG_TABLESIZE];
+	u32 sg_offset = 0;
+	u32 sg_count = 0;
+	int sg_index = 0;
+	u32 i = 0;
+	void *p = NULL;
+	i2o_status_block *sb;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	unsigned int iop;
+
+	if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
+		return -EFAULT;
+
+	c = i2o_find_iop(iop);
+	if (!c) {
+		osm_warn("controller %d not found\n", iop);
+		return -ENXIO;
+	}
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+
+	sb = c->status_block.virt;
+
+	if (get_user(size, &user_msg[0]))
+		return -EFAULT;
+	size = size >> 16;
+
+	if (size > sb->inbound_frame_size) {
+		osm_warn("size of message > inbound_frame_size");
+		return -EFAULT;
+	}
+
+	user_reply = &user_msg[size];
+
+	size <<= 2;		// Convert to bytes
+
+	/* Copy in the user's I2O command */
+	if (copy_from_user(msg, user_msg, size))
+		return -EFAULT;
+
+	if (get_user(reply_size, &user_reply[0]) < 0)
+		return -EFAULT;
+
+	reply_size >>= 16;
+	reply_size <<= 2;
+
+	reply = kmalloc(reply_size, GFP_KERNEL);
+	if (!reply) {
+		printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
+		       c->name);
+		return -ENOMEM;
+	}
+	memset(reply, 0, reply_size);
+
+	sg_offset = (msg->u.head[0] >> 4) & 0x0f;
+
+	writel(i2o_config_driver.context, &msg->u.s.icntxt);
+	writel(i2o_cntxt_list_add(c, reply), &msg->u.s.tcntxt);
+
+	memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
+	if (sg_offset) {
+		struct sg_simple_element *sg;
+
+		if (sg_offset * 4 >= size) {
+			rcode = -EFAULT;
+			goto cleanup;
+		}
+		// TODO 64bit fix
+		sg = (struct sg_simple_element *)((&msg->u.head[0]) +
+						  sg_offset);
+		sg_count =
+		    (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+		if (sg_count > SG_TABLESIZE) {
+			printk(KERN_DEBUG "%s:IOCTL SG List too large (%u)\n",
+			       c->name, sg_count);
+			kfree(reply);
+			return -EINVAL;
+		}
+
+		for (i = 0; i < sg_count; i++) {
+			int sg_size;
+
+			if (!(sg[i].flag_count & 0x10000000
+			      /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT */ )) {
+				printk(KERN_DEBUG
+				       "%s:Bad SG element %d - not simple (%x)\n",
+				       c->name, i, sg[i].flag_count);
+				rcode = -EINVAL;
+				goto cleanup;
+			}
+			sg_size = sg[i].flag_count & 0xffffff;
+			/* Allocate memory for the transfer */
+			p = kmalloc(sg_size, GFP_KERNEL);
+			if (!p) {
+				printk(KERN_DEBUG
+				       "%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
+				       c->name, sg_size, i, sg_count);
+				rcode = -ENOMEM;
+				goto cleanup;
+			}
+			sg_list[sg_index++] = p;	// sglist indexed with input frame, not our internal frame.
+			/* Copy in the user's SG buffer if necessary */
+			if (sg[i].
+			    flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR */ ) {
+				// TODO 64bit fix
+				if (copy_from_user
+				    (p, (void __user *)sg[i].addr_bus,
+				     sg_size)) {
+					printk(KERN_DEBUG
+					       "%s: Could not copy SG buf %d FROM user\n",
+					       c->name, i);
+					rcode = -EFAULT;
+					goto cleanup;
+				}
+			}
+			//TODO 64bit fix
+			sg[i].addr_bus = virt_to_bus(p);
+		}
+	}
+
+	rcode = i2o_msg_post_wait(c, m, 60);
+	if (rcode)
+		goto cleanup;
+
+	if (sg_offset) {
+		u32 msg[128];
+		/* Copy back the Scatter Gather buffers back to user space */
+		u32 j;
+		// TODO 64bit fix
+		struct sg_simple_element *sg;
+		int sg_size;
+
+		// re-acquire the original message to handle correctly the sg copy operation
+		memset(&msg, 0, MSG_FRAME_SIZE * 4);
+		// get user msg size in u32s
+		if (get_user(size, &user_msg[0])) {
+			rcode = -EFAULT;
+			goto cleanup;
+		}
+		size = size >> 16;
+		size *= 4;
+		/* Copy in the user's I2O command */
+		if (copy_from_user(msg, user_msg, size)) {
+			rcode = -EFAULT;
+			goto cleanup;
+		}
+		sg_count =
+		    (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+
+		// TODO 64bit fix
+		sg = (struct sg_simple_element *)(msg + sg_offset);
+		for (j = 0; j < sg_count; j++) {
+			/* Copy out the SG list to user's buffer if necessary */
+			if (!
+			    (sg[j].
+			     flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR */ )) {
+				sg_size = sg[j].flag_count & 0xffffff;
+				// TODO 64bit fix
+				if (copy_to_user
+				    ((void __user *)sg[j].addr_bus, sg_list[j],
+				     sg_size)) {
+					printk(KERN_WARNING
+					       "%s: Could not copy %p TO user %x\n",
+					       c->name, sg_list[j],
+					       sg[j].addr_bus);
+					rcode = -EFAULT;
+					goto cleanup;
+				}
+			}
+		}
+	}
+
+	/* Copy back the reply to user space */
+	if (reply_size) {
+		// we wrote our own values for context - now restore the user supplied ones
+		if (copy_from_user(reply + 2, user_msg + 2, sizeof(u32) * 2)) {
+			printk(KERN_WARNING
+			       "%s: Could not copy message context FROM user\n",
+			       c->name);
+			rcode = -EFAULT;
+		}
+		if (copy_to_user(user_reply, reply, reply_size)) {
+			printk(KERN_WARNING
+			       "%s: Could not copy reply TO user\n", c->name);
+			rcode = -EFAULT;
+		}
+	}
+
+      cleanup:
+	kfree(reply);
+	return rcode;
+}
+#endif
+
+/*
+ * IOCTL Handler
+ */
+static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
+			 unsigned long arg)
+{
+	int ret;
+
+	switch (cmd) {
+	case I2OGETIOPS:
+		ret = i2o_cfg_getiops(arg);
+		break;
+
+	case I2OHRTGET:
+		ret = i2o_cfg_gethrt(arg);
+		break;
+
+	case I2OLCTGET:
+		ret = i2o_cfg_getlct(arg);
+		break;
+
+	case I2OPARMSET:
+		ret = i2o_cfg_parms(arg, I2OPARMSET);
+		break;
+
+	case I2OPARMGET:
+		ret = i2o_cfg_parms(arg, I2OPARMGET);
+		break;
+
+	case I2OSWDL:
+		ret = i2o_cfg_swdl(arg);
+		break;
+
+	case I2OSWUL:
+		ret = i2o_cfg_swul(arg);
+		break;
+
+	case I2OSWDEL:
+		ret = i2o_cfg_swdel(arg);
+		break;
+
+	case I2OVALIDATE:
+		ret = i2o_cfg_validate(arg);
+		break;
+
+	case I2OEVTREG:
+		ret = i2o_cfg_evt_reg(arg, fp);
+		break;
+
+	case I2OEVTGET:
+		ret = i2o_cfg_evt_get(arg, fp);
+		break;
+
+#ifndef CONFIG_COMPAT
+	case I2OPASSTHRU:
+		ret = i2o_cfg_passthru(arg);
+		break;
+#endif
+
+	default:
+		osm_debug("unknown ioctl called!\n");
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int cfg_open(struct inode *inode, struct file *file)
+{
+	struct i2o_cfg_info *tmp =
+	    (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info),
+					   GFP_KERNEL);
+	unsigned long flags;
+
+	if (!tmp)
+		return -ENOMEM;
+
+	file->private_data = (void *)(i2o_cfg_info_id++);
+	tmp->fp = file;
+	tmp->fasync = NULL;
+	tmp->q_id = (ulong) file->private_data;
+	tmp->q_len = 0;
+	tmp->q_in = 0;
+	tmp->q_out = 0;
+	tmp->q_lost = 0;
+	tmp->next = open_files;
+
+	spin_lock_irqsave(&i2o_config_lock, flags);
+	open_files = tmp;
+	spin_unlock_irqrestore(&i2o_config_lock, flags);
+
+	return 0;
+}
+
+static int cfg_fasync(int fd, struct file *fp, int on)
+{
+	ulong id = (ulong) fp->private_data;
+	struct i2o_cfg_info *p;
+
+	for (p = open_files; p; p = p->next)
+		if (p->q_id == id)
+			break;
+
+	if (!p)
+		return -EBADF;
+
+	return fasync_helper(fd, fp, on, &p->fasync);
+}
+
+static int cfg_release(struct inode *inode, struct file *file)
+{
+	ulong id = (ulong) file->private_data;
+	struct i2o_cfg_info *p1, *p2;
+	unsigned long flags;
+
+	lock_kernel();
+	p1 = p2 = NULL;
+
+	spin_lock_irqsave(&i2o_config_lock, flags);
+	for (p1 = open_files; p1;) {
+		if (p1->q_id == id) {
+
+			if (p1->fasync)
+				cfg_fasync(-1, file, 0);
+			if (p2)
+				p2->next = p1->next;
+			else
+				open_files = p1->next;
+
+			kfree(p1);
+			break;
+		}
+		p2 = p1;
+		p1 = p1->next;
+	}
+	spin_unlock_irqrestore(&i2o_config_lock, flags);
+	unlock_kernel();
+
+	return 0;
+}
+
+static struct file_operations config_fops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.ioctl = i2o_cfg_ioctl,
+	.open = cfg_open,
+	.release = cfg_release,
+	.fasync = cfg_fasync,
+};
+
+static struct miscdevice i2o_miscdev = {
+	I2O_MINOR,
+	"i2octl",
+	&config_fops
+};
+
+static int __init i2o_config_init(void)
+{
+	printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+	spin_lock_init(&i2o_config_lock);
+
+	if (misc_register(&i2o_miscdev) < 0) {
+		osm_err("can't register device.\n");
+		return -EBUSY;
+	}
+	/*
+	 *      Install our handler
+	 */
+	if (i2o_driver_register(&i2o_config_driver)) {
+		osm_err("handler register failed.\n");
+		misc_deregister(&i2o_miscdev);
+		return -EBUSY;
+	}
+#ifdef CONFIG_COMPAT
+	register_ioctl32_conversion(I2OPASSTHRU32, i2o_cfg_passthru32);
+	register_ioctl32_conversion(I2OGETIOPS, (void *)sys_ioctl);
+#endif
+	return 0;
+}
+
+static void i2o_config_exit(void)
+{
+#ifdef CONFIG_COMPAT
+	unregister_ioctl32_conversion(I2OPASSTHRU32);
+	unregister_ioctl32_conversion(I2OGETIOPS);
+#endif
+	misc_deregister(&i2o_miscdev);
+	i2o_driver_unregister(&i2o_config_driver);
+}
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_config_init);
+module_exit(i2o_config_exit);
diff --git a/drivers/message/i2o/i2o_lan.h b/drivers/message/i2o/i2o_lan.h
new file mode 100644
index 000000000000..561d63304d7e
--- /dev/null
+++ b/drivers/message/i2o/i2o_lan.h
@@ -0,0 +1,159 @@
+/*
+ *   	i2o_lan.h			I2O LAN Class definitions
+ *
+ *      I2O LAN CLASS OSM       	May 26th 2000
+ *
+ *      (C) Copyright 1999, 2000	University of Helsinki,
+ *					Department of Computer Science
+ *
+ *      This code is still under development / test.
+ *
+ *	Author:		Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ *			Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI>
+ *			Taneli Vähäkangas <Taneli.Vahakangas@cs.Helsinki.FI>
+ */
+
+#ifndef _I2O_LAN_H
+#define _I2O_LAN_H
+
+/* Default values for tunable parameters first */
+
+#define I2O_LAN_MAX_BUCKETS_OUT 96
+#define I2O_LAN_BUCKET_THRESH	18	/* 9 buckets in one message */
+#define I2O_LAN_RX_COPYBREAK	200
+#define I2O_LAN_TX_TIMEOUT 	(1*HZ)
+#define I2O_LAN_TX_BATCH_MODE	2	/* 2=automatic, 1=on, 0=off */
+#define I2O_LAN_EVENT_MASK	0	/* 0=None, 0xFFC00002=All */
+
+/* LAN types */
+#define I2O_LAN_ETHERNET	0x0030
+#define I2O_LAN_100VG		0x0040
+#define I2O_LAN_TR		0x0050
+#define I2O_LAN_FDDI		0x0060
+#define I2O_LAN_FIBRE_CHANNEL	0x0070
+#define I2O_LAN_UNKNOWN		0x00000000
+
+/* Connector types */
+
+/* Ethernet */
+#define I2O_LAN_AUI		(I2O_LAN_ETHERNET << 4) + 0x00000001
+#define I2O_LAN_10BASE5		(I2O_LAN_ETHERNET << 4) + 0x00000002
+#define I2O_LAN_FIORL		(I2O_LAN_ETHERNET << 4) + 0x00000003
+#define I2O_LAN_10BASE2		(I2O_LAN_ETHERNET << 4) + 0x00000004
+#define I2O_LAN_10BROAD36	(I2O_LAN_ETHERNET << 4) + 0x00000005
+#define I2O_LAN_10BASE_T	(I2O_LAN_ETHERNET << 4) + 0x00000006
+#define I2O_LAN_10BASE_FP	(I2O_LAN_ETHERNET << 4) + 0x00000007
+#define I2O_LAN_10BASE_FB	(I2O_LAN_ETHERNET << 4) + 0x00000008
+#define I2O_LAN_10BASE_FL	(I2O_LAN_ETHERNET << 4) + 0x00000009
+#define I2O_LAN_100BASE_TX	(I2O_LAN_ETHERNET << 4) + 0x0000000A
+#define I2O_LAN_100BASE_FX	(I2O_LAN_ETHERNET << 4) + 0x0000000B
+#define I2O_LAN_100BASE_T4	(I2O_LAN_ETHERNET << 4) + 0x0000000C
+#define I2O_LAN_1000BASE_SX	(I2O_LAN_ETHERNET << 4) + 0x0000000D
+#define I2O_LAN_1000BASE_LX	(I2O_LAN_ETHERNET << 4) + 0x0000000E
+#define I2O_LAN_1000BASE_CX	(I2O_LAN_ETHERNET << 4) + 0x0000000F
+#define I2O_LAN_1000BASE_T	(I2O_LAN_ETHERNET << 4) + 0x00000010
+
+/* AnyLAN */
+#define I2O_LAN_100VG_ETHERNET	(I2O_LAN_100VG << 4) + 0x00000001
+#define I2O_LAN_100VG_TR	(I2O_LAN_100VG << 4) + 0x00000002
+
+/* Token Ring */
+#define I2O_LAN_4MBIT		(I2O_LAN_TR << 4) + 0x00000001
+#define I2O_LAN_16MBIT		(I2O_LAN_TR << 4) + 0x00000002
+
+/* FDDI */
+#define I2O_LAN_125MBAUD	(I2O_LAN_FDDI << 4) + 0x00000001
+
+/* Fibre Channel */
+#define I2O_LAN_POINT_POINT	(I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000001
+#define I2O_LAN_ARB_LOOP	(I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000002
+#define I2O_LAN_PUBLIC_LOOP	(I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000003
+#define I2O_LAN_FABRIC		(I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000004
+
+#define I2O_LAN_EMULATION	0x00000F00
+#define I2O_LAN_OTHER		0x00000F01
+#define I2O_LAN_DEFAULT		0xFFFFFFFF
+
+/* LAN class functions */
+
+#define LAN_PACKET_SEND		0x3B
+#define LAN_SDU_SEND		0x3D
+#define LAN_RECEIVE_POST	0x3E
+#define LAN_RESET		0x35
+#define LAN_SUSPEND		0x37
+
+/* LAN DetailedStatusCode defines */
+#define I2O_LAN_DSC_SUCCESS			0x00
+#define I2O_LAN_DSC_DEVICE_FAILURE		0x01
+#define I2O_LAN_DSC_DESTINATION_NOT_FOUND	0x02
+#define	I2O_LAN_DSC_TRANSMIT_ERROR		0x03
+#define I2O_LAN_DSC_TRANSMIT_ABORTED		0x04
+#define I2O_LAN_DSC_RECEIVE_ERROR		0x05
+#define I2O_LAN_DSC_RECEIVE_ABORTED		0x06
+#define I2O_LAN_DSC_DMA_ERROR			0x07
+#define I2O_LAN_DSC_BAD_PACKET_DETECTED		0x08
+#define I2O_LAN_DSC_OUT_OF_MEMORY		0x09
+#define I2O_LAN_DSC_BUCKET_OVERRUN		0x0A
+#define I2O_LAN_DSC_IOP_INTERNAL_ERROR		0x0B
+#define I2O_LAN_DSC_CANCELED			0x0C
+#define I2O_LAN_DSC_INVALID_TRANSACTION_CONTEXT	0x0D
+#define I2O_LAN_DSC_DEST_ADDRESS_DETECTED	0x0E
+#define I2O_LAN_DSC_DEST_ADDRESS_OMITTED	0x0F
+#define I2O_LAN_DSC_PARTIAL_PACKET_RETURNED	0x10
+#define I2O_LAN_DSC_SUSPENDED			0x11
+
+struct i2o_packet_info {
+	u32 offset : 24;
+	u32 flags  : 8;
+	u32 len    : 24;
+	u32 status : 8;
+};
+
+struct i2o_bucket_descriptor {
+	u32 context; 			/* FIXME: 64bit support */
+	struct i2o_packet_info packet_info[1];
+};
+
+/* Event Indicator Mask Flags for LAN OSM */
+
+#define I2O_LAN_EVT_LINK_DOWN		0x01
+#define I2O_LAN_EVT_LINK_UP		0x02
+#define I2O_LAN_EVT_MEDIA_CHANGE 	0x04
+
+#include <linux/netdevice.h>
+#include <linux/fddidevice.h>
+
+struct i2o_lan_local {
+	u8 unit;
+	struct i2o_device *i2o_dev;
+
+	struct fddi_statistics stats;   /* see also struct net_device_stats */
+	unsigned short (*type_trans)(struct sk_buff *, struct net_device *);
+	atomic_t buckets_out;  		/* nbr of unused buckets on DDM */
+	atomic_t tx_out;		/* outstanding TXes */
+	u8 tx_count;  			/* packets in one TX message frame */
+	u16 tx_max_out;	   		/* DDM's Tx queue len */
+	u8 sgl_max;			/* max SGLs in one message frame */
+	u32 m;				/* IOP address of the batch msg frame */
+
+	struct work_struct i2o_batch_send_task;
+	int send_active;
+	struct sk_buff **i2o_fbl;	/* Free bucket list (to reuse skbs) */
+	int i2o_fbl_tail;
+	spinlock_t fbl_lock;
+
+	spinlock_t tx_lock;
+
+	u32 max_size_mc_table;		/* max number of multicast addresses */
+
+	/* LAN OSM configurable parameters are here: */
+
+	u16 max_buckets_out;		/* max nbr of buckets to send to DDM */
+	u16 bucket_thresh;		/* send more when this many used */
+	u16 rx_copybreak;
+
+	u8  tx_batch_mode;		/* Set when using batch mode sends */
+	u32 i2o_event_mask;		/* To turn on interesting event flags */
+};
+
+#endif /* _I2O_LAN_H */
diff --git a/drivers/message/i2o/i2o_proc.c b/drivers/message/i2o/i2o_proc.c
new file mode 100644
index 000000000000..b176d0eeff7f
--- /dev/null
+++ b/drivers/message/i2o/i2o_proc.c
@@ -0,0 +1,2112 @@
+/*
+ *	procfs handler for Linux I2O subsystem
+ *
+ *	(c) Copyright 1999	Deepak Saxena
+ *
+ *	Originally written by Deepak Saxena(deepak@plexity.net)
+ *
+ *	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 is an initial test release. The code is based on the design of the
+ *	ide procfs system (drivers/block/ide-proc.c). Some code taken from
+ *	i2o-core module by Alan Cox.
+ *
+ *	DISCLAIMER: This code is still under development/test and may cause
+ *	your system to behave unpredictably.  Use at your own discretion.
+ *
+ *
+ *	Fixes/additions:
+ *		Juha Sievänen (Juha.Sievanen@cs.Helsinki.FI),
+ *		Auvo Häkkinen (Auvo.Hakkinen@cs.Helsinki.FI)
+ *		University of Helsinki, Department of Computer Science
+ *			LAN entries
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>
+ *			Changes for new I2O API
+ */
+
+#define OSM_NAME	"proc-osm"
+#define OSM_VERSION	"$Rev$"
+#define OSM_DESCRIPTION	"I2O ProcFS OSM"
+
+#define I2O_MAX_MODULES 4
+// FIXME!
+#define FMT_U64_HEX "0x%08x%08x"
+#define U64_VAL(pu64) *((u32*)(pu64)+1), *((u32*)(pu64))
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/i2o.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+
+/* Structure used to define /proc entries */
+typedef struct _i2o_proc_entry_t {
+	char *name;		/* entry name */
+	mode_t mode;		/* mode */
+	struct file_operations *fops;	/* open function */
+} i2o_proc_entry;
+
+/* global I2O /proc/i2o entry */
+static struct proc_dir_entry *i2o_proc_dir_root;
+
+/* proc OSM driver struct */
+static struct i2o_driver i2o_proc_driver = {
+	.name = OSM_NAME,
+};
+
+static int print_serial_number(struct seq_file *seq, u8 * serialno, int max_len)
+{
+	int i;
+
+	/* 19990419 -sralston
+	 *      The I2O v1.5 (and v2.0 so far) "official specification"
+	 *      got serial numbers WRONG!
+	 *      Apparently, and despite what Section 3.4.4 says and
+	 *      Figure 3-35 shows (pg 3-39 in the pdf doc),
+	 *      the convention / consensus seems to be:
+	 *        + First byte is SNFormat
+	 *        + Second byte is SNLen (but only if SNFormat==7 (?))
+	 *        + (v2.0) SCSI+BS may use IEEE Registered (64 or 128 bit) format
+	 */
+	switch (serialno[0]) {
+	case I2O_SNFORMAT_BINARY:	/* Binary */
+		seq_printf(seq, "0x");
+		for (i = 0; i < serialno[1]; i++) {
+			seq_printf(seq, "%02X", serialno[2 + i]);
+		}
+		break;
+
+	case I2O_SNFORMAT_ASCII:	/* ASCII */
+		if (serialno[1] < ' ') {	/* printable or SNLen? */
+			/* sanity */
+			max_len =
+			    (max_len < serialno[1]) ? max_len : serialno[1];
+			serialno[1 + max_len] = '\0';
+
+			/* just print it */
+			seq_printf(seq, "%s", &serialno[2]);
+		} else {
+			/* print chars for specified length */
+			for (i = 0; i < serialno[1]; i++) {
+				seq_printf(seq, "%c", serialno[2 + i]);
+			}
+		}
+		break;
+
+	case I2O_SNFORMAT_UNICODE:	/* UNICODE */
+		seq_printf(seq, "UNICODE Format.  Can't Display\n");
+		break;
+
+	case I2O_SNFORMAT_LAN48_MAC:	/* LAN-48 MAC Address */
+		seq_printf(seq,
+			   "LAN-48 MAC address @ %02X:%02X:%02X:%02X:%02X:%02X",
+			   serialno[2], serialno[3],
+			   serialno[4], serialno[5], serialno[6], serialno[7]);
+		break;
+
+	case I2O_SNFORMAT_WAN:	/* WAN MAC Address */
+		/* FIXME: Figure out what a WAN access address looks like?? */
+		seq_printf(seq, "WAN Access Address");
+		break;
+
+/* plus new in v2.0 */
+	case I2O_SNFORMAT_LAN64_MAC:	/* LAN-64 MAC Address */
+		/* FIXME: Figure out what a LAN-64 address really looks like?? */
+		seq_printf(seq,
+			   "LAN-64 MAC address @ [?:%02X:%02X:?] %02X:%02X:%02X:%02X:%02X:%02X",
+			   serialno[8], serialno[9],
+			   serialno[2], serialno[3],
+			   serialno[4], serialno[5], serialno[6], serialno[7]);
+		break;
+
+	case I2O_SNFORMAT_DDM:	/* I2O DDM */
+		seq_printf(seq,
+			   "DDM: Tid=%03Xh, Rsvd=%04Xh, OrgId=%04Xh",
+			   *(u16 *) & serialno[2],
+			   *(u16 *) & serialno[4], *(u16 *) & serialno[6]);
+		break;
+
+	case I2O_SNFORMAT_IEEE_REG64:	/* IEEE Registered (64-bit) */
+	case I2O_SNFORMAT_IEEE_REG128:	/* IEEE Registered (128-bit) */
+		/* FIXME: Figure if this is even close?? */
+		seq_printf(seq,
+			   "IEEE NodeName(hi,lo)=(%08Xh:%08Xh), PortName(hi,lo)=(%08Xh:%08Xh)\n",
+			   *(u32 *) & serialno[2],
+			   *(u32 *) & serialno[6],
+			   *(u32 *) & serialno[10], *(u32 *) & serialno[14]);
+		break;
+
+	case I2O_SNFORMAT_UNKNOWN:	/* Unknown 0    */
+	case I2O_SNFORMAT_UNKNOWN2:	/* Unknown 0xff */
+	default:
+		seq_printf(seq, "Unknown data format (0x%02x)", serialno[0]);
+		break;
+	}
+
+	return 0;
+}
+
+/**
+ *	i2o_get_class_name - 	do i2o class name lookup
+ *	@class: class number
+ *
+ *	Return a descriptive string for an i2o class
+ */
+static const char *i2o_get_class_name(int class)
+{
+	int idx = 16;
+	static char *i2o_class_name[] = {
+		"Executive",
+		"Device Driver Module",
+		"Block Device",
+		"Tape Device",
+		"LAN Interface",
+		"WAN Interface",
+		"Fibre Channel Port",
+		"Fibre Channel Device",
+		"SCSI Device",
+		"ATE Port",
+		"ATE Device",
+		"Floppy Controller",
+		"Floppy Device",
+		"Secondary Bus Port",
+		"Peer Transport Agent",
+		"Peer Transport",
+		"Unknown"
+	};
+
+	switch (class & 0xfff) {
+	case I2O_CLASS_EXECUTIVE:
+		idx = 0;
+		break;
+	case I2O_CLASS_DDM:
+		idx = 1;
+		break;
+	case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+		idx = 2;
+		break;
+	case I2O_CLASS_SEQUENTIAL_STORAGE:
+		idx = 3;
+		break;
+	case I2O_CLASS_LAN:
+		idx = 4;
+		break;
+	case I2O_CLASS_WAN:
+		idx = 5;
+		break;
+	case I2O_CLASS_FIBRE_CHANNEL_PORT:
+		idx = 6;
+		break;
+	case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
+		idx = 7;
+		break;
+	case I2O_CLASS_SCSI_PERIPHERAL:
+		idx = 8;
+		break;
+	case I2O_CLASS_ATE_PORT:
+		idx = 9;
+		break;
+	case I2O_CLASS_ATE_PERIPHERAL:
+		idx = 10;
+		break;
+	case I2O_CLASS_FLOPPY_CONTROLLER:
+		idx = 11;
+		break;
+	case I2O_CLASS_FLOPPY_DEVICE:
+		idx = 12;
+		break;
+	case I2O_CLASS_BUS_ADAPTER_PORT:
+		idx = 13;
+		break;
+	case I2O_CLASS_PEER_TRANSPORT_AGENT:
+		idx = 14;
+		break;
+	case I2O_CLASS_PEER_TRANSPORT:
+		idx = 15;
+		break;
+	}
+
+	return i2o_class_name[idx];
+}
+
+#define SCSI_TABLE_SIZE	13
+static char *scsi_devices[] = {
+	"Direct-Access Read/Write",
+	"Sequential-Access Storage",
+	"Printer",
+	"Processor",
+	"WORM Device",
+	"CD-ROM Device",
+	"Scanner Device",
+	"Optical Memory Device",
+	"Medium Changer Device",
+	"Communications Device",
+	"Graphics Art Pre-Press Device",
+	"Graphics Art Pre-Press Device",
+	"Array Controller Device"
+};
+
+static char *chtostr(u8 * chars, int n)
+{
+	char tmp[256];
+	tmp[0] = 0;
+	return strncat(tmp, (char *)chars, n);
+}
+
+static int i2o_report_query_status(struct seq_file *seq, int block_status,
+				   char *group)
+{
+	switch (block_status) {
+	case -ETIMEDOUT:
+		return seq_printf(seq, "Timeout reading group %s.\n", group);
+	case -ENOMEM:
+		return seq_printf(seq, "No free memory to read the table.\n");
+	case -I2O_PARAMS_STATUS_INVALID_GROUP_ID:
+		return seq_printf(seq, "Group %s not supported.\n", group);
+	default:
+		return seq_printf(seq,
+				  "Error reading group %s. BlockStatus 0x%02X\n",
+				  group, -block_status);
+	}
+}
+
+static char *bus_strings[] = {
+	"Local Bus",
+	"ISA",
+	"EISA",
+	"MCA",
+	"PCI",
+	"PCMCIA",
+	"NUBUS",
+	"CARDBUS"
+};
+
+static int i2o_seq_show_hrt(struct seq_file *seq, void *v)
+{
+	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+	i2o_hrt *hrt = (i2o_hrt *) c->hrt.virt;
+	u32 bus;
+	int i;
+
+	if (hrt->hrt_version) {
+		seq_printf(seq,
+			   "HRT table for controller is too new a version.\n");
+		return 0;
+	}
+
+	seq_printf(seq, "HRT has %d entries of %d bytes each.\n",
+		   hrt->num_entries, hrt->entry_len << 2);
+
+	for (i = 0; i < hrt->num_entries; i++) {
+		seq_printf(seq, "Entry %d:\n", i);
+		seq_printf(seq, "   Adapter ID: %0#10x\n",
+			   hrt->hrt_entry[i].adapter_id);
+		seq_printf(seq, "   Controlling tid: %0#6x\n",
+			   hrt->hrt_entry[i].parent_tid);
+
+		if (hrt->hrt_entry[i].bus_type != 0x80) {
+			bus = hrt->hrt_entry[i].bus_type;
+			seq_printf(seq, "   %s Information\n",
+				   bus_strings[bus]);
+
+			switch (bus) {
+			case I2O_BUS_LOCAL:
+				seq_printf(seq, "     IOBase: %0#6x,",
+					   hrt->hrt_entry[i].bus.local_bus.
+					   LbBaseIOPort);
+				seq_printf(seq, " MemoryBase: %0#10x\n",
+					   hrt->hrt_entry[i].bus.local_bus.
+					   LbBaseMemoryAddress);
+				break;
+
+			case I2O_BUS_ISA:
+				seq_printf(seq, "     IOBase: %0#6x,",
+					   hrt->hrt_entry[i].bus.isa_bus.
+					   IsaBaseIOPort);
+				seq_printf(seq, " MemoryBase: %0#10x,",
+					   hrt->hrt_entry[i].bus.isa_bus.
+					   IsaBaseMemoryAddress);
+				seq_printf(seq, " CSN: %0#4x,",
+					   hrt->hrt_entry[i].bus.isa_bus.CSN);
+				break;
+
+			case I2O_BUS_EISA:
+				seq_printf(seq, "     IOBase: %0#6x,",
+					   hrt->hrt_entry[i].bus.eisa_bus.
+					   EisaBaseIOPort);
+				seq_printf(seq, " MemoryBase: %0#10x,",
+					   hrt->hrt_entry[i].bus.eisa_bus.
+					   EisaBaseMemoryAddress);
+				seq_printf(seq, " Slot: %0#4x,",
+					   hrt->hrt_entry[i].bus.eisa_bus.
+					   EisaSlotNumber);
+				break;
+
+			case I2O_BUS_MCA:
+				seq_printf(seq, "     IOBase: %0#6x,",
+					   hrt->hrt_entry[i].bus.mca_bus.
+					   McaBaseIOPort);
+				seq_printf(seq, " MemoryBase: %0#10x,",
+					   hrt->hrt_entry[i].bus.mca_bus.
+					   McaBaseMemoryAddress);
+				seq_printf(seq, " Slot: %0#4x,",
+					   hrt->hrt_entry[i].bus.mca_bus.
+					   McaSlotNumber);
+				break;
+
+			case I2O_BUS_PCI:
+				seq_printf(seq, "     Bus: %0#4x",
+					   hrt->hrt_entry[i].bus.pci_bus.
+					   PciBusNumber);
+				seq_printf(seq, " Dev: %0#4x",
+					   hrt->hrt_entry[i].bus.pci_bus.
+					   PciDeviceNumber);
+				seq_printf(seq, " Func: %0#4x",
+					   hrt->hrt_entry[i].bus.pci_bus.
+					   PciFunctionNumber);
+				seq_printf(seq, " Vendor: %0#6x",
+					   hrt->hrt_entry[i].bus.pci_bus.
+					   PciVendorID);
+				seq_printf(seq, " Device: %0#6x\n",
+					   hrt->hrt_entry[i].bus.pci_bus.
+					   PciDeviceID);
+				break;
+
+			default:
+				seq_printf(seq, "      Unsupported Bus Type\n");
+			}
+		} else
+			seq_printf(seq, "   Unknown Bus Type\n");
+	}
+
+	return 0;
+}
+
+static int i2o_seq_show_lct(struct seq_file *seq, void *v)
+{
+	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+	i2o_lct *lct = (i2o_lct *) c->lct;
+	int entries;
+	int i;
+
+#define BUS_TABLE_SIZE 3
+	static char *bus_ports[] = {
+		"Generic Bus",
+		"SCSI Bus",
+		"Fibre Channel Bus"
+	};
+
+	entries = (lct->table_size - 3) / 9;
+
+	seq_printf(seq, "LCT contains %d %s\n", entries,
+		   entries == 1 ? "entry" : "entries");
+	if (lct->boot_tid)
+		seq_printf(seq, "Boot Device @ ID %d\n", lct->boot_tid);
+
+	seq_printf(seq, "Current Change Indicator: %#10x\n", lct->change_ind);
+
+	for (i = 0; i < entries; i++) {
+		seq_printf(seq, "Entry %d\n", i);
+		seq_printf(seq, "  Class, SubClass  : %s",
+			   i2o_get_class_name(lct->lct_entry[i].class_id));
+
+		/*
+		 *      Classes which we'll print subclass info for
+		 */
+		switch (lct->lct_entry[i].class_id & 0xFFF) {
+		case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+			switch (lct->lct_entry[i].sub_class) {
+			case 0x00:
+				seq_printf(seq, ", Direct-Access Read/Write");
+				break;
+
+			case 0x04:
+				seq_printf(seq, ", WORM Drive");
+				break;
+
+			case 0x05:
+				seq_printf(seq, ", CD-ROM Drive");
+				break;
+
+			case 0x07:
+				seq_printf(seq, ", Optical Memory Device");
+				break;
+
+			default:
+				seq_printf(seq, ", Unknown (0x%02x)",
+					   lct->lct_entry[i].sub_class);
+				break;
+			}
+			break;
+
+		case I2O_CLASS_LAN:
+			switch (lct->lct_entry[i].sub_class & 0xFF) {
+			case 0x30:
+				seq_printf(seq, ", Ethernet");
+				break;
+
+			case 0x40:
+				seq_printf(seq, ", 100base VG");
+				break;
+
+			case 0x50:
+				seq_printf(seq, ", IEEE 802.5/Token-Ring");
+				break;
+
+			case 0x60:
+				seq_printf(seq, ", ANSI X3T9.5 FDDI");
+				break;
+
+			case 0x70:
+				seq_printf(seq, ", Fibre Channel");
+				break;
+
+			default:
+				seq_printf(seq, ", Unknown Sub-Class (0x%02x)",
+					   lct->lct_entry[i].sub_class & 0xFF);
+				break;
+			}
+			break;
+
+		case I2O_CLASS_SCSI_PERIPHERAL:
+			if (lct->lct_entry[i].sub_class < SCSI_TABLE_SIZE)
+				seq_printf(seq, ", %s",
+					   scsi_devices[lct->lct_entry[i].
+							sub_class]);
+			else
+				seq_printf(seq, ", Unknown Device Type");
+			break;
+
+		case I2O_CLASS_BUS_ADAPTER_PORT:
+			if (lct->lct_entry[i].sub_class < BUS_TABLE_SIZE)
+				seq_printf(seq, ", %s",
+					   bus_ports[lct->lct_entry[i].
+						     sub_class]);
+			else
+				seq_printf(seq, ", Unknown Bus Type");
+			break;
+		}
+		seq_printf(seq, "\n");
+
+		seq_printf(seq, "  Local TID        : 0x%03x\n",
+			   lct->lct_entry[i].tid);
+		seq_printf(seq, "  User TID         : 0x%03x\n",
+			   lct->lct_entry[i].user_tid);
+		seq_printf(seq, "  Parent TID       : 0x%03x\n",
+			   lct->lct_entry[i].parent_tid);
+		seq_printf(seq, "  Identity Tag     : 0x%x%x%x%x%x%x%x%x\n",
+			   lct->lct_entry[i].identity_tag[0],
+			   lct->lct_entry[i].identity_tag[1],
+			   lct->lct_entry[i].identity_tag[2],
+			   lct->lct_entry[i].identity_tag[3],
+			   lct->lct_entry[i].identity_tag[4],
+			   lct->lct_entry[i].identity_tag[5],
+			   lct->lct_entry[i].identity_tag[6],
+			   lct->lct_entry[i].identity_tag[7]);
+		seq_printf(seq, "  Change Indicator : %0#10x\n",
+			   lct->lct_entry[i].change_ind);
+		seq_printf(seq, "  Event Capab Mask : %0#10x\n",
+			   lct->lct_entry[i].device_flags);
+	}
+
+	return 0;
+}
+
+static int i2o_seq_show_status(struct seq_file *seq, void *v)
+{
+	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+	char prodstr[25];
+	int version;
+	i2o_status_block *sb = c->status_block.virt;
+
+	i2o_status_get(c);	// reread the status block
+
+	seq_printf(seq, "Organization ID        : %0#6x\n", sb->org_id);
+
+	version = sb->i2o_version;
+
+/* FIXME for Spec 2.0
+	if (version == 0x02) {
+		seq_printf(seq, "Lowest I2O version supported: ");
+		switch(workspace[2]) {
+			case 0x00:
+				seq_printf(seq, "1.0\n");
+				break;
+			case 0x01:
+				seq_printf(seq, "1.5\n");
+				break;
+			case 0x02:
+				seq_printf(seq, "2.0\n");
+				break;
+		}
+
+		seq_printf(seq, "Highest I2O version supported: ");
+		switch(workspace[3]) {
+			case 0x00:
+				seq_printf(seq, "1.0\n");
+				break;
+			case 0x01:
+				seq_printf(seq, "1.5\n");
+				break;
+			case 0x02:
+				seq_printf(seq, "2.0\n");
+				break;
+		}
+	}
+*/
+	seq_printf(seq, "IOP ID                 : %0#5x\n", sb->iop_id);
+	seq_printf(seq, "Host Unit ID           : %0#6x\n", sb->host_unit_id);
+	seq_printf(seq, "Segment Number         : %0#5x\n", sb->segment_number);
+
+	seq_printf(seq, "I2O version            : ");
+	switch (version) {
+	case 0x00:
+		seq_printf(seq, "1.0\n");
+		break;
+	case 0x01:
+		seq_printf(seq, "1.5\n");
+		break;
+	case 0x02:
+		seq_printf(seq, "2.0\n");
+		break;
+	default:
+		seq_printf(seq, "Unknown version\n");
+	}
+
+	seq_printf(seq, "IOP State              : ");
+	switch (sb->iop_state) {
+	case 0x01:
+		seq_printf(seq, "INIT\n");
+		break;
+
+	case 0x02:
+		seq_printf(seq, "RESET\n");
+		break;
+
+	case 0x04:
+		seq_printf(seq, "HOLD\n");
+		break;
+
+	case 0x05:
+		seq_printf(seq, "READY\n");
+		break;
+
+	case 0x08:
+		seq_printf(seq, "OPERATIONAL\n");
+		break;
+
+	case 0x10:
+		seq_printf(seq, "FAILED\n");
+		break;
+
+	case 0x11:
+		seq_printf(seq, "FAULTED\n");
+		break;
+
+	default:
+		seq_printf(seq, "Unknown\n");
+		break;
+	}
+
+	seq_printf(seq, "Messenger Type         : ");
+	switch (sb->msg_type) {
+	case 0x00:
+		seq_printf(seq, "Memory mapped\n");
+		break;
+	case 0x01:
+		seq_printf(seq, "Memory mapped only\n");
+		break;
+	case 0x02:
+		seq_printf(seq, "Remote only\n");
+		break;
+	case 0x03:
+		seq_printf(seq, "Memory mapped and remote\n");
+		break;
+	default:
+		seq_printf(seq, "Unknown\n");
+	}
+
+	seq_printf(seq, "Inbound Frame Size     : %d bytes\n",
+		   sb->inbound_frame_size << 2);
+	seq_printf(seq, "Max Inbound Frames     : %d\n",
+		   sb->max_inbound_frames);
+	seq_printf(seq, "Current Inbound Frames : %d\n",
+		   sb->cur_inbound_frames);
+	seq_printf(seq, "Max Outbound Frames    : %d\n",
+		   sb->max_outbound_frames);
+
+	/* Spec doesn't say if NULL terminated or not... */
+	memcpy(prodstr, sb->product_id, 24);
+	prodstr[24] = '\0';
+	seq_printf(seq, "Product ID             : %s\n", prodstr);
+	seq_printf(seq, "Expected LCT Size      : %d bytes\n",
+		   sb->expected_lct_size);
+
+	seq_printf(seq, "IOP Capabilities\n");
+	seq_printf(seq, "    Context Field Size Support : ");
+	switch (sb->iop_capabilities & 0x0000003) {
+	case 0:
+		seq_printf(seq, "Supports only 32-bit context fields\n");
+		break;
+	case 1:
+		seq_printf(seq, "Supports only 64-bit context fields\n");
+		break;
+	case 2:
+		seq_printf(seq, "Supports 32-bit and 64-bit context fields, "
+			   "but not concurrently\n");
+		break;
+	case 3:
+		seq_printf(seq, "Supports 32-bit and 64-bit context fields "
+			   "concurrently\n");
+		break;
+	default:
+		seq_printf(seq, "0x%08x\n", sb->iop_capabilities);
+	}
+	seq_printf(seq, "    Current Context Field Size : ");
+	switch (sb->iop_capabilities & 0x0000000C) {
+	case 0:
+		seq_printf(seq, "not configured\n");
+		break;
+	case 4:
+		seq_printf(seq, "Supports only 32-bit context fields\n");
+		break;
+	case 8:
+		seq_printf(seq, "Supports only 64-bit context fields\n");
+		break;
+	case 12:
+		seq_printf(seq, "Supports both 32-bit or 64-bit context fields "
+			   "concurrently\n");
+		break;
+	default:
+		seq_printf(seq, "\n");
+	}
+	seq_printf(seq, "    Inbound Peer Support       : %s\n",
+		   (sb->
+		    iop_capabilities & 0x00000010) ? "Supported" :
+		   "Not supported");
+	seq_printf(seq, "    Outbound Peer Support      : %s\n",
+		   (sb->
+		    iop_capabilities & 0x00000020) ? "Supported" :
+		   "Not supported");
+	seq_printf(seq, "    Peer to Peer Support       : %s\n",
+		   (sb->
+		    iop_capabilities & 0x00000040) ? "Supported" :
+		   "Not supported");
+
+	seq_printf(seq, "Desired private memory size   : %d kB\n",
+		   sb->desired_mem_size >> 10);
+	seq_printf(seq, "Allocated private memory size : %d kB\n",
+		   sb->current_mem_size >> 10);
+	seq_printf(seq, "Private memory base address   : %0#10x\n",
+		   sb->current_mem_base);
+	seq_printf(seq, "Desired private I/O size      : %d kB\n",
+		   sb->desired_io_size >> 10);
+	seq_printf(seq, "Allocated private I/O size    : %d kB\n",
+		   sb->current_io_size >> 10);
+	seq_printf(seq, "Private I/O base address      : %0#10x\n",
+		   sb->current_io_base);
+
+	return 0;
+}
+
+static int i2o_seq_show_hw(struct seq_file *seq, void *v)
+{
+	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+	static u32 work32[5];
+	static u8 *work8 = (u8 *) work32;
+	static u16 *work16 = (u16 *) work32;
+	int token;
+	u32 hwcap;
+
+	static char *cpu_table[] = {
+		"Intel 80960 series",
+		"AMD2900 series",
+		"Motorola 68000 series",
+		"ARM series",
+		"MIPS series",
+		"Sparc series",
+		"PowerPC series",
+		"Intel x86 series"
+	};
+
+	token =
+	    i2o_parm_field_get(c->exec, 0x0000, -1, &work32, sizeof(work32));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0x0000 IOP Hardware");
+		return 0;
+	}
+
+	seq_printf(seq, "I2O Vendor ID    : %0#6x\n", work16[0]);
+	seq_printf(seq, "Product ID       : %0#6x\n", work16[1]);
+	seq_printf(seq, "CPU              : ");
+	if (work8[16] > 8)
+		seq_printf(seq, "Unknown\n");
+	else
+		seq_printf(seq, "%s\n", cpu_table[work8[16]]);
+	/* Anyone using ProcessorVersion? */
+
+	seq_printf(seq, "RAM              : %dkB\n", work32[1] >> 10);
+	seq_printf(seq, "Non-Volatile Mem : %dkB\n", work32[2] >> 10);
+
+	hwcap = work32[3];
+	seq_printf(seq, "Capabilities : 0x%08x\n", hwcap);
+	seq_printf(seq, "   [%s] Self booting\n",
+		   (hwcap & 0x00000001) ? "+" : "-");
+	seq_printf(seq, "   [%s] Upgradable IRTOS\n",
+		   (hwcap & 0x00000002) ? "+" : "-");
+	seq_printf(seq, "   [%s] Supports downloading DDMs\n",
+		   (hwcap & 0x00000004) ? "+" : "-");
+	seq_printf(seq, "   [%s] Supports installing DDMs\n",
+		   (hwcap & 0x00000008) ? "+" : "-");
+	seq_printf(seq, "   [%s] Battery-backed RAM\n",
+		   (hwcap & 0x00000010) ? "+" : "-");
+
+	return 0;
+}
+
+/* Executive group 0003h - Executing DDM List (table) */
+static int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
+{
+	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+	int token;
+	int i;
+
+	typedef struct _i2o_exec_execute_ddm_table {
+		u16 ddm_tid;
+		u8 module_type;
+		u8 reserved;
+		u16 i2o_vendor_id;
+		u16 module_id;
+		u8 module_name_version[28];
+		u32 data_size;
+		u32 code_size;
+	} i2o_exec_execute_ddm_table;
+
+	struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		i2o_exec_execute_ddm_table ddm_table[I2O_MAX_MODULES];
+	} *result;
+
+	i2o_exec_execute_ddm_table ddm_table;
+
+	result = kmalloc(sizeof(*result), GFP_KERNEL);
+	if (!result)
+		return -ENOMEM;
+
+	token = i2o_parm_table_get(c->exec, I2O_PARAMS_TABLE_GET, 0x0003, -1,
+				   NULL, 0, result, sizeof(*result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token,
+					"0x0003 Executing DDM List");
+		goto out;
+	}
+
+	seq_printf(seq,
+		   "Tid   Module_type     Vendor Mod_id  Module_name             Vrs  Data_size Code_size\n");
+	ddm_table = result->ddm_table[0];
+
+	for (i = 0; i < result->row_count; ddm_table = result->ddm_table[++i]) {
+		seq_printf(seq, "0x%03x ", ddm_table.ddm_tid & 0xFFF);
+
+		switch (ddm_table.module_type) {
+		case 0x01:
+			seq_printf(seq, "Downloaded DDM  ");
+			break;
+		case 0x22:
+			seq_printf(seq, "Embedded DDM    ");
+			break;
+		default:
+			seq_printf(seq, "                ");
+		}
+
+		seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
+		seq_printf(seq, "%-#8x", ddm_table.module_id);
+		seq_printf(seq, "%-29s",
+			   chtostr(ddm_table.module_name_version, 28));
+		seq_printf(seq, "%9d  ", ddm_table.data_size);
+		seq_printf(seq, "%8d", ddm_table.code_size);
+
+		seq_printf(seq, "\n");
+	}
+      out:
+	kfree(result);
+	return 0;
+}
+
+/* Executive group 0004h - Driver Store (scalar) */
+static int i2o_seq_show_driver_store(struct seq_file *seq, void *v)
+{
+	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+	u32 work32[8];
+	int token;
+
+	token =
+	    i2o_parm_field_get(c->exec, 0x0004, -1, &work32, sizeof(work32));
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0x0004 Driver Store");
+		return 0;
+	}
+
+	seq_printf(seq, "Module limit  : %d\n"
+		   "Module count  : %d\n"
+		   "Current space : %d kB\n"
+		   "Free space    : %d kB\n",
+		   work32[0], work32[1], work32[2] >> 10, work32[3] >> 10);
+
+	return 0;
+}
+
+/* Executive group 0005h - Driver Store Table (table) */
+static int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
+{
+	typedef struct _i2o_driver_store {
+		u16 stored_ddm_index;
+		u8 module_type;
+		u8 reserved;
+		u16 i2o_vendor_id;
+		u16 module_id;
+		u8 module_name_version[28];
+		u8 date[8];
+		u32 module_size;
+		u32 mpb_size;
+		u32 module_flags;
+	} i2o_driver_store_table;
+
+	struct i2o_controller *c = (struct i2o_controller *)seq->private;
+	int token;
+	int i;
+
+	typedef struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		i2o_driver_store_table dst[I2O_MAX_MODULES];
+	} i2o_driver_result_table;
+
+	i2o_driver_result_table *result;
+	i2o_driver_store_table *dst;
+
+	result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
+	if (result == NULL)
+		return -ENOMEM;
+
+	token = i2o_parm_table_get(c->exec, I2O_PARAMS_TABLE_GET, 0x0005, -1,
+				   NULL, 0, result, sizeof(*result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token,
+					"0x0005 DRIVER STORE TABLE");
+		kfree(result);
+		return 0;
+	}
+
+	seq_printf(seq,
+		   "#  Module_type     Vendor Mod_id  Module_name             Vrs"
+		   "Date     Mod_size Par_size Flags\n");
+	for (i = 0, dst = &result->dst[0]; i < result->row_count;
+	     dst = &result->dst[++i]) {
+		seq_printf(seq, "%-3d", dst->stored_ddm_index);
+		switch (dst->module_type) {
+		case 0x01:
+			seq_printf(seq, "Downloaded DDM  ");
+			break;
+		case 0x22:
+			seq_printf(seq, "Embedded DDM    ");
+			break;
+		default:
+			seq_printf(seq, "                ");
+		}
+
+		seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
+		seq_printf(seq, "%-#8x", dst->module_id);
+		seq_printf(seq, "%-29s", chtostr(dst->module_name_version, 28));
+		seq_printf(seq, "%-9s", chtostr(dst->date, 8));
+		seq_printf(seq, "%8d ", dst->module_size);
+		seq_printf(seq, "%8d ", dst->mpb_size);
+		seq_printf(seq, "0x%04x", dst->module_flags);
+		seq_printf(seq, "\n");
+	}
+
+	kfree(result);
+	return 0;
+}
+
+/* Generic group F000h - Params Descriptor (table) */
+static int i2o_seq_show_groups(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+	int i;
+	u8 properties;
+
+	typedef struct _i2o_group_info {
+		u16 group_number;
+		u16 field_count;
+		u16 row_count;
+		u8 properties;
+		u8 reserved;
+	} i2o_group_info;
+
+	struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		i2o_group_info group[256];
+	} *result;
+
+	result = kmalloc(sizeof(*result), GFP_KERNEL);
+	if (!result)
+		return -ENOMEM;
+
+	token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF000, -1, NULL, 0,
+				   result, sizeof(*result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0xF000 Params Descriptor");
+		goto out;
+	}
+
+	seq_printf(seq,
+		   "#  Group   FieldCount RowCount Type   Add Del Clear\n");
+
+	for (i = 0; i < result->row_count; i++) {
+		seq_printf(seq, "%-3d", i);
+		seq_printf(seq, "0x%04X ", result->group[i].group_number);
+		seq_printf(seq, "%10d ", result->group[i].field_count);
+		seq_printf(seq, "%8d ", result->group[i].row_count);
+
+		properties = result->group[i].properties;
+		if (properties & 0x1)
+			seq_printf(seq, "Table  ");
+		else
+			seq_printf(seq, "Scalar ");
+		if (properties & 0x2)
+			seq_printf(seq, " + ");
+		else
+			seq_printf(seq, " - ");
+		if (properties & 0x4)
+			seq_printf(seq, "  + ");
+		else
+			seq_printf(seq, "  - ");
+		if (properties & 0x8)
+			seq_printf(seq, "  + ");
+		else
+			seq_printf(seq, "  - ");
+
+		seq_printf(seq, "\n");
+	}
+
+	if (result->more_flag)
+		seq_printf(seq, "There is more...\n");
+      out:
+	kfree(result);
+	return 0;
+}
+
+/* Generic group F001h - Physical Device Table (table) */
+static int i2o_seq_show_phys_device(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+	int i;
+
+	struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		u32 adapter_id[64];
+	} result;
+
+	token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF001, -1, NULL, 0,
+				   &result, sizeof(result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token,
+					"0xF001 Physical Device Table");
+		return 0;
+	}
+
+	if (result.row_count)
+		seq_printf(seq, "#  AdapterId\n");
+
+	for (i = 0; i < result.row_count; i++) {
+		seq_printf(seq, "%-2d", i);
+		seq_printf(seq, "%#7x\n", result.adapter_id[i]);
+	}
+
+	if (result.more_flag)
+		seq_printf(seq, "There is more...\n");
+
+	return 0;
+}
+
+/* Generic group F002h - Claimed Table (table) */
+static int i2o_seq_show_claimed(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+	int i;
+
+	struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		u16 claimed_tid[64];
+	} result;
+
+	token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF002, -1, NULL, 0,
+				   &result, sizeof(result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0xF002 Claimed Table");
+		return 0;
+	}
+
+	if (result.row_count)
+		seq_printf(seq, "#  ClaimedTid\n");
+
+	for (i = 0; i < result.row_count; i++) {
+		seq_printf(seq, "%-2d", i);
+		seq_printf(seq, "%#7x\n", result.claimed_tid[i]);
+	}
+
+	if (result.more_flag)
+		seq_printf(seq, "There is more...\n");
+
+	return 0;
+}
+
+/* Generic group F003h - User Table (table) */
+static int i2o_seq_show_users(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+	int i;
+
+	typedef struct _i2o_user_table {
+		u16 instance;
+		u16 user_tid;
+		u8 claim_type;
+		u8 reserved1;
+		u16 reserved2;
+	} i2o_user_table;
+
+	struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		i2o_user_table user[64];
+	} *result;
+
+	result = kmalloc(sizeof(*result), GFP_KERNEL);
+	if (!result)
+		return -ENOMEM;
+
+	token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF003, -1, NULL, 0,
+				   result, sizeof(*result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0xF003 User Table");
+		goto out;
+	}
+
+	seq_printf(seq, "#  Instance UserTid ClaimType\n");
+
+	for (i = 0; i < result->row_count; i++) {
+		seq_printf(seq, "%-3d", i);
+		seq_printf(seq, "%#8x ", result->user[i].instance);
+		seq_printf(seq, "%#7x ", result->user[i].user_tid);
+		seq_printf(seq, "%#9x\n", result->user[i].claim_type);
+	}
+
+	if (result->more_flag)
+		seq_printf(seq, "There is more...\n");
+      out:
+	kfree(result);
+	return 0;
+}
+
+/* Generic group F005h - Private message extensions (table) (optional) */
+static int i2o_seq_show_priv_msgs(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+	int i;
+
+	typedef struct _i2o_private {
+		u16 ext_instance;
+		u16 organization_id;
+		u16 x_function_code;
+	} i2o_private;
+
+	struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		i2o_private extension[64];
+	} result;
+
+	token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF000, -1, NULL, 0,
+				   &result, sizeof(result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token,
+					"0xF005 Private Message Extensions (optional)");
+		return 0;
+	}
+
+	seq_printf(seq, "Instance#  OrgId  FunctionCode\n");
+
+	for (i = 0; i < result.row_count; i++) {
+		seq_printf(seq, "%0#9x ", result.extension[i].ext_instance);
+		seq_printf(seq, "%0#6x ", result.extension[i].organization_id);
+		seq_printf(seq, "%0#6x", result.extension[i].x_function_code);
+
+		seq_printf(seq, "\n");
+	}
+
+	if (result.more_flag)
+		seq_printf(seq, "There is more...\n");
+
+	return 0;
+}
+
+/* Generic group F006h - Authorized User Table (table) */
+static int i2o_seq_show_authorized_users(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+	int i;
+
+	struct {
+		u16 result_count;
+		u16 pad;
+		u16 block_size;
+		u8 block_status;
+		u8 error_info_size;
+		u16 row_count;
+		u16 more_flag;
+		u32 alternate_tid[64];
+	} result;
+
+	token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF006, -1, NULL, 0,
+				   &result, sizeof(result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token,
+					"0xF006 Autohorized User Table");
+		return 0;
+	}
+
+	if (result.row_count)
+		seq_printf(seq, "#  AlternateTid\n");
+
+	for (i = 0; i < result.row_count; i++) {
+		seq_printf(seq, "%-2d", i);
+		seq_printf(seq, "%#7x ", result.alternate_tid[i]);
+	}
+
+	if (result.more_flag)
+		seq_printf(seq, "There is more...\n");
+
+	return 0;
+}
+
+/* Generic group F100h - Device Identity (scalar) */
+static int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	static u32 work32[128];	// allow for "stuff" + up to 256 byte (max) serial number
+	// == (allow) 512d bytes (max)
+	static u16 *work16 = (u16 *) work32;
+	int token;
+
+	token = i2o_parm_field_get(d, 0xF100, -1, &work32, sizeof(work32));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0xF100 Device Identity");
+		return 0;
+	}
+
+	seq_printf(seq, "Device Class  : %s\n", i2o_get_class_name(work16[0]));
+	seq_printf(seq, "Owner TID     : %0#5x\n", work16[2]);
+	seq_printf(seq, "Parent TID    : %0#5x\n", work16[3]);
+	seq_printf(seq, "Vendor info   : %s\n",
+		   chtostr((u8 *) (work32 + 2), 16));
+	seq_printf(seq, "Product info  : %s\n",
+		   chtostr((u8 *) (work32 + 6), 16));
+	seq_printf(seq, "Description   : %s\n",
+		   chtostr((u8 *) (work32 + 10), 16));
+	seq_printf(seq, "Product rev.  : %s\n",
+		   chtostr((u8 *) (work32 + 14), 8));
+
+	seq_printf(seq, "Serial number : ");
+	print_serial_number(seq, (u8 *) (work32 + 16),
+			    /* allow for SNLen plus
+			     * possible trailing '\0'
+			     */
+			    sizeof(work32) - (16 * sizeof(u32)) - 2);
+	seq_printf(seq, "\n");
+
+	return 0;
+}
+
+static int i2o_seq_show_dev_name(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+
+	seq_printf(seq, "%s\n", d->device.bus_id);
+
+	return 0;
+}
+
+/* Generic group F101h - DDM Identity (scalar) */
+static int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+
+	struct {
+		u16 ddm_tid;
+		u8 module_name[24];
+		u8 module_rev[8];
+		u8 sn_format;
+		u8 serial_number[12];
+		u8 pad[256];	// allow up to 256 byte (max) serial number
+	} result;
+
+	token = i2o_parm_field_get(d, 0xF101, -1, &result, sizeof(result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0xF101 DDM Identity");
+		return 0;
+	}
+
+	seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
+	seq_printf(seq, "Module name         : %s\n",
+		   chtostr(result.module_name, 24));
+	seq_printf(seq, "Module revision     : %s\n",
+		   chtostr(result.module_rev, 8));
+
+	seq_printf(seq, "Serial number       : ");
+	print_serial_number(seq, result.serial_number, sizeof(result) - 36);
+	/* allow for SNLen plus possible trailing '\0' */
+
+	seq_printf(seq, "\n");
+
+	return 0;
+}
+
+/* Generic group F102h - User Information (scalar) */
+static int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+
+	struct {
+		u8 device_name[64];
+		u8 service_name[64];
+		u8 physical_location[64];
+		u8 instance_number[4];
+	} result;
+
+	token = i2o_parm_field_get(d, 0xF102, -1, &result, sizeof(result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token, "0xF102 User Information");
+		return 0;
+	}
+
+	seq_printf(seq, "Device name     : %s\n",
+		   chtostr(result.device_name, 64));
+	seq_printf(seq, "Service name    : %s\n",
+		   chtostr(result.service_name, 64));
+	seq_printf(seq, "Physical name   : %s\n",
+		   chtostr(result.physical_location, 64));
+	seq_printf(seq, "Instance number : %s\n",
+		   chtostr(result.instance_number, 4));
+
+	return 0;
+}
+
+/* Generic group F103h - SGL Operating Limits (scalar) */
+static int i2o_seq_show_sgl_limits(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	static u32 work32[12];
+	static u16 *work16 = (u16 *) work32;
+	static u8 *work8 = (u8 *) work32;
+	int token;
+
+	token = i2o_parm_field_get(d, 0xF103, -1, &work32, sizeof(work32));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token,
+					"0xF103 SGL Operating Limits");
+		return 0;
+	}
+
+	seq_printf(seq, "SGL chain size        : %d\n", work32[0]);
+	seq_printf(seq, "Max SGL chain size    : %d\n", work32[1]);
+	seq_printf(seq, "SGL chain size target : %d\n", work32[2]);
+	seq_printf(seq, "SGL frag count        : %d\n", work16[6]);
+	seq_printf(seq, "Max SGL frag count    : %d\n", work16[7]);
+	seq_printf(seq, "SGL frag count target : %d\n", work16[8]);
+
+/* FIXME
+	if (d->i2oversion == 0x02)
+	{
+*/
+	seq_printf(seq, "SGL data alignment    : %d\n", work16[8]);
+	seq_printf(seq, "SGL addr limit        : %d\n", work8[20]);
+	seq_printf(seq, "SGL addr sizes supported : ");
+	if (work8[21] & 0x01)
+		seq_printf(seq, "32 bit ");
+	if (work8[21] & 0x02)
+		seq_printf(seq, "64 bit ");
+	if (work8[21] & 0x04)
+		seq_printf(seq, "96 bit ");
+	if (work8[21] & 0x08)
+		seq_printf(seq, "128 bit ");
+	seq_printf(seq, "\n");
+/*
+	}
+*/
+
+	return 0;
+}
+
+/* Generic group F200h - Sensors (scalar) */
+static int i2o_seq_show_sensors(struct seq_file *seq, void *v)
+{
+	struct i2o_device *d = (struct i2o_device *)seq->private;
+	int token;
+
+	struct {
+		u16 sensor_instance;
+		u8 component;
+		u16 component_instance;
+		u8 sensor_class;
+		u8 sensor_type;
+		u8 scaling_exponent;
+		u32 actual_reading;
+		u32 minimum_reading;
+		u32 low2lowcat_treshold;
+		u32 lowcat2low_treshold;
+		u32 lowwarn2low_treshold;
+		u32 low2lowwarn_treshold;
+		u32 norm2lowwarn_treshold;
+		u32 lowwarn2norm_treshold;
+		u32 nominal_reading;
+		u32 hiwarn2norm_treshold;
+		u32 norm2hiwarn_treshold;
+		u32 high2hiwarn_treshold;
+		u32 hiwarn2high_treshold;
+		u32 hicat2high_treshold;
+		u32 hi2hicat_treshold;
+		u32 maximum_reading;
+		u8 sensor_state;
+		u16 event_enable;
+	} result;
+
+	token = i2o_parm_field_get(d, 0xF200, -1, &result, sizeof(result));
+
+	if (token < 0) {
+		i2o_report_query_status(seq, token,
+					"0xF200 Sensors (optional)");
+		return 0;
+	}
+
+	seq_printf(seq, "Sensor instance       : %d\n", result.sensor_instance);
+
+	seq_printf(seq, "Component             : %d = ", result.component);
+	switch (result.component) {
+	case 0:
+		seq_printf(seq, "Other");
+		break;
+	case 1:
+		seq_printf(seq, "Planar logic Board");
+		break;
+	case 2:
+		seq_printf(seq, "CPU");
+		break;
+	case 3:
+		seq_printf(seq, "Chassis");
+		break;
+	case 4:
+		seq_printf(seq, "Power Supply");
+		break;
+	case 5:
+		seq_printf(seq, "Storage");
+		break;
+	case 6:
+		seq_printf(seq, "External");
+		break;
+	}
+	seq_printf(seq, "\n");
+
+	seq_printf(seq, "Component instance    : %d\n",
+		   result.component_instance);
+	seq_printf(seq, "Sensor class          : %s\n",
+		   result.sensor_class ? "Analog" : "Digital");
+
+	seq_printf(seq, "Sensor type           : %d = ", result.sensor_type);
+	switch (result.sensor_type) {
+	case 0:
+		seq_printf(seq, "Other\n");
+		break;
+	case 1:
+		seq_printf(seq, "Thermal\n");
+		break;
+	case 2:
+		seq_printf(seq, "DC voltage (DC volts)\n");
+		break;
+	case 3:
+		seq_printf(seq, "AC voltage (AC volts)\n");
+		break;
+	case 4:
+		seq_printf(seq, "DC current (DC amps)\n");
+		break;
+	case 5:
+		seq_printf(seq, "AC current (AC volts)\n");
+		break;
+	case 6:
+		seq_printf(seq, "Door open\n");
+		break;
+	case 7:
+		seq_printf(seq, "Fan operational\n");
+		break;
+	}
+
+	seq_printf(seq, "Scaling exponent      : %d\n",
+		   result.scaling_exponent);
+	seq_printf(seq, "Actual reading        : %d\n", result.actual_reading);
+	seq_printf(seq, "Minimum reading       : %d\n", result.minimum_reading);
+	seq_printf(seq, "Low2LowCat treshold   : %d\n",
+		   result.low2lowcat_treshold);
+	seq_printf(seq, "LowCat2Low treshold   : %d\n",
+		   result.lowcat2low_treshold);
+	seq_printf(seq, "LowWarn2Low treshold  : %d\n",
+		   result.lowwarn2low_treshold);
+	seq_printf(seq, "Low2LowWarn treshold  : %d\n",
+		   result.low2lowwarn_treshold);
+	seq_printf(seq, "Norm2LowWarn treshold : %d\n",
+		   result.norm2lowwarn_treshold);
+	seq_printf(seq, "LowWarn2Norm treshold : %d\n",
+		   result.lowwarn2norm_treshold);
+	seq_printf(seq, "Nominal reading       : %d\n", result.nominal_reading);
+	seq_printf(seq, "HiWarn2Norm treshold  : %d\n",
+		   result.hiwarn2norm_treshold);
+	seq_printf(seq, "Norm2HiWarn treshold  : %d\n",
+		   result.norm2hiwarn_treshold);
+	seq_printf(seq, "High2HiWarn treshold  : %d\n",
+		   result.high2hiwarn_treshold);
+	seq_printf(seq, "HiWarn2High treshold  : %d\n",
+		   result.hiwarn2high_treshold);
+	seq_printf(seq, "HiCat2High treshold   : %d\n",
+		   result.hicat2high_treshold);
+	seq_printf(seq, "High2HiCat treshold   : %d\n",
+		   result.hi2hicat_treshold);
+	seq_printf(seq, "Maximum reading       : %d\n", result.maximum_reading);
+
+	seq_printf(seq, "Sensor state          : %d = ", result.sensor_state);
+	switch (result.sensor_state) {
+	case 0:
+		seq_printf(seq, "Normal\n");
+		break;
+	case 1:
+		seq_printf(seq, "Abnormal\n");
+		break;
+	case 2:
+		seq_printf(seq, "Unknown\n");
+		break;
+	case 3:
+		seq_printf(seq, "Low Catastrophic (LoCat)\n");
+		break;
+	case 4:
+		seq_printf(seq, "Low (Low)\n");
+		break;
+	case 5:
+		seq_printf(seq, "Low Warning (LoWarn)\n");
+		break;
+	case 6:
+		seq_printf(seq, "High Warning (HiWarn)\n");
+		break;
+	case 7:
+		seq_printf(seq, "High (High)\n");
+		break;
+	case 8:
+		seq_printf(seq, "High Catastrophic (HiCat)\n");
+		break;
+	}
+
+	seq_printf(seq, "Event_enable : 0x%02X\n", result.event_enable);
+	seq_printf(seq, "    [%s] Operational state change. \n",
+		   (result.event_enable & 0x01) ? "+" : "-");
+	seq_printf(seq, "    [%s] Low catastrophic. \n",
+		   (result.event_enable & 0x02) ? "+" : "-");
+	seq_printf(seq, "    [%s] Low reading. \n",
+		   (result.event_enable & 0x04) ? "+" : "-");
+	seq_printf(seq, "    [%s] Low warning. \n",
+		   (result.event_enable & 0x08) ? "+" : "-");
+	seq_printf(seq,
+		   "    [%s] Change back to normal from out of range state. \n",
+		   (result.event_enable & 0x10) ? "+" : "-");
+	seq_printf(seq, "    [%s] High warning. \n",
+		   (result.event_enable & 0x20) ? "+" : "-");
+	seq_printf(seq, "    [%s] High reading. \n",
+		   (result.event_enable & 0x40) ? "+" : "-");
+	seq_printf(seq, "    [%s] High catastrophic. \n",
+		   (result.event_enable & 0x80) ? "+" : "-");
+
+	return 0;
+}
+
+static int i2o_seq_open_hrt(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_hrt, PDE(inode)->data);
+};
+
+static int i2o_seq_open_lct(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_lct, PDE(inode)->data);
+};
+
+static int i2o_seq_open_status(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_status, PDE(inode)->data);
+};
+
+static int i2o_seq_open_hw(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_hw, PDE(inode)->data);
+};
+
+static int i2o_seq_open_ddm_table(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_ddm_table, PDE(inode)->data);
+};
+
+static int i2o_seq_open_driver_store(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_driver_store, PDE(inode)->data);
+};
+
+static int i2o_seq_open_drivers_stored(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_drivers_stored, PDE(inode)->data);
+};
+
+static int i2o_seq_open_groups(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_groups, PDE(inode)->data);
+};
+
+static int i2o_seq_open_phys_device(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_phys_device, PDE(inode)->data);
+};
+
+static int i2o_seq_open_claimed(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_claimed, PDE(inode)->data);
+};
+
+static int i2o_seq_open_users(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_users, PDE(inode)->data);
+};
+
+static int i2o_seq_open_priv_msgs(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_priv_msgs, PDE(inode)->data);
+};
+
+static int i2o_seq_open_authorized_users(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_authorized_users,
+			   PDE(inode)->data);
+};
+
+static int i2o_seq_open_dev_identity(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_dev_identity, PDE(inode)->data);
+};
+
+static int i2o_seq_open_ddm_identity(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_ddm_identity, PDE(inode)->data);
+};
+
+static int i2o_seq_open_uinfo(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_uinfo, PDE(inode)->data);
+};
+
+static int i2o_seq_open_sgl_limits(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_sgl_limits, PDE(inode)->data);
+};
+
+static int i2o_seq_open_sensors(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_sensors, PDE(inode)->data);
+};
+
+static int i2o_seq_open_dev_name(struct inode *inode, struct file *file)
+{
+	return single_open(file, i2o_seq_show_dev_name, PDE(inode)->data);
+};
+
+static struct file_operations i2o_seq_fops_lct = {
+	.open = i2o_seq_open_lct,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_hrt = {
+	.open = i2o_seq_open_hrt,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_status = {
+	.open = i2o_seq_open_status,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_hw = {
+	.open = i2o_seq_open_hw,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_ddm_table = {
+	.open = i2o_seq_open_ddm_table,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_driver_store = {
+	.open = i2o_seq_open_driver_store,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_drivers_stored = {
+	.open = i2o_seq_open_drivers_stored,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_groups = {
+	.open = i2o_seq_open_groups,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_phys_device = {
+	.open = i2o_seq_open_phys_device,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_claimed = {
+	.open = i2o_seq_open_claimed,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_users = {
+	.open = i2o_seq_open_users,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_priv_msgs = {
+	.open = i2o_seq_open_priv_msgs,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_authorized_users = {
+	.open = i2o_seq_open_authorized_users,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_dev_name = {
+	.open = i2o_seq_open_dev_name,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_dev_identity = {
+	.open = i2o_seq_open_dev_identity,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_ddm_identity = {
+	.open = i2o_seq_open_ddm_identity,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_uinfo = {
+	.open = i2o_seq_open_uinfo,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_sgl_limits = {
+	.open = i2o_seq_open_sgl_limits,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_sensors = {
+	.open = i2o_seq_open_sensors,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+/*
+ * IOP specific entries...write field just in case someone
+ * ever wants one.
+ */
+static i2o_proc_entry i2o_proc_generic_iop_entries[] = {
+	{"hrt", S_IFREG | S_IRUGO, &i2o_seq_fops_hrt},
+	{"lct", S_IFREG | S_IRUGO, &i2o_seq_fops_lct},
+	{"status", S_IFREG | S_IRUGO, &i2o_seq_fops_status},
+	{"hw", S_IFREG | S_IRUGO, &i2o_seq_fops_hw},
+	{"ddm_table", S_IFREG | S_IRUGO, &i2o_seq_fops_ddm_table},
+	{"driver_store", S_IFREG | S_IRUGO, &i2o_seq_fops_driver_store},
+	{"drivers_stored", S_IFREG | S_IRUGO, &i2o_seq_fops_drivers_stored},
+	{NULL, 0, NULL}
+};
+
+/*
+ * Device specific entries
+ */
+static i2o_proc_entry generic_dev_entries[] = {
+	{"groups", S_IFREG | S_IRUGO, &i2o_seq_fops_groups},
+	{"phys_dev", S_IFREG | S_IRUGO, &i2o_seq_fops_phys_device},
+	{"claimed", S_IFREG | S_IRUGO, &i2o_seq_fops_claimed},
+	{"users", S_IFREG | S_IRUGO, &i2o_seq_fops_users},
+	{"priv_msgs", S_IFREG | S_IRUGO, &i2o_seq_fops_priv_msgs},
+	{"authorized_users", S_IFREG | S_IRUGO, &i2o_seq_fops_authorized_users},
+	{"dev_identity", S_IFREG | S_IRUGO, &i2o_seq_fops_dev_identity},
+	{"ddm_identity", S_IFREG | S_IRUGO, &i2o_seq_fops_ddm_identity},
+	{"user_info", S_IFREG | S_IRUGO, &i2o_seq_fops_uinfo},
+	{"sgl_limits", S_IFREG | S_IRUGO, &i2o_seq_fops_sgl_limits},
+	{"sensors", S_IFREG | S_IRUGO, &i2o_seq_fops_sensors},
+	{NULL, 0, NULL}
+};
+
+/*
+ *  Storage unit specific entries (SCSI Periph, BS) with device names
+ */
+static i2o_proc_entry rbs_dev_entries[] = {
+	{"dev_name", S_IFREG | S_IRUGO, &i2o_seq_fops_dev_name},
+	{NULL, 0, NULL}
+};
+
+/**
+ *	i2o_proc_create_entries - Creates proc dir entries
+ *	@dir: proc dir entry under which the entries should be placed
+ *	@i2o_pe: pointer to the entries which should be added
+ *	@data: pointer to I2O controller or device
+ *
+ *	Create proc dir entries for a I2O controller or I2O device.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_proc_create_entries(struct proc_dir_entry *dir,
+				   i2o_proc_entry * i2o_pe, void *data)
+{
+	struct proc_dir_entry *tmp;
+
+	while (i2o_pe->name) {
+		tmp = create_proc_entry(i2o_pe->name, i2o_pe->mode, dir);
+		if (!tmp)
+			return -1;
+
+		tmp->data = data;
+		tmp->proc_fops = i2o_pe->fops;
+
+		i2o_pe++;
+	}
+
+	return 0;
+}
+
+/**
+ *	i2o_proc_subdir_remove - Remove child entries from a proc entry
+ *	@dir: proc dir entry from which the childs should be removed
+ *
+ *	Iterate over each i2o proc entry under dir and remove it. If the child
+ *	also has entries, remove them too.
+ */
+static void i2o_proc_subdir_remove(struct proc_dir_entry *dir)
+{
+	struct proc_dir_entry *pe, *tmp;
+	pe = dir->subdir;
+	while (pe) {
+		tmp = pe->next;
+		i2o_proc_subdir_remove(pe);
+		remove_proc_entry(pe->name, dir);
+		pe = tmp;
+	}
+};
+
+/**
+ *	i2o_proc_device_add - Add an I2O device to the proc dir
+ *	@dir: proc dir entry to which the device should be added
+ *	@dev: I2O device which should be added
+ *
+ *	Add an I2O device to the proc dir entry dir and create the entries for
+ *	the device depending on the class of the I2O device.
+ */
+static void i2o_proc_device_add(struct proc_dir_entry *dir,
+				struct i2o_device *dev)
+{
+	char buff[10];
+	struct proc_dir_entry *devdir;
+	i2o_proc_entry *i2o_pe = NULL;
+
+	sprintf(buff, "%03x", dev->lct_data.tid);
+
+	osm_debug("adding device /proc/i2o/%s/%s\n", dev->iop->name, buff);
+
+	devdir = proc_mkdir(buff, dir);
+	if (!devdir) {
+		osm_warn("Could not allocate procdir!\n");
+		return;
+	}
+
+	devdir->data = dev;
+
+	i2o_proc_create_entries(devdir, generic_dev_entries, dev);
+
+	/* Inform core that we want updates about this device's status */
+	switch (dev->lct_data.class_id) {
+	case I2O_CLASS_SCSI_PERIPHERAL:
+	case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+		i2o_pe = rbs_dev_entries;
+		break;
+	default:
+		break;
+	}
+	if (i2o_pe)
+		i2o_proc_create_entries(devdir, i2o_pe, dev);
+}
+
+/**
+ *	i2o_proc_iop_add - Add an I2O controller to the i2o proc tree
+ *	@dir: parent proc dir entry
+ *	@c: I2O controller which should be added
+ *
+ *	Add the entries to the parent proc dir entry. Also each device is added
+ *	to the controllers proc dir entry.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_proc_iop_add(struct proc_dir_entry *dir,
+			    struct i2o_controller *c)
+{
+	struct proc_dir_entry *iopdir;
+	struct i2o_device *dev;
+
+	osm_debug("adding IOP /proc/i2o/%s\n", c->name);
+
+	iopdir = proc_mkdir(c->name, dir);
+	if (!iopdir)
+		return -1;
+
+	iopdir->data = c;
+
+	i2o_proc_create_entries(iopdir, i2o_proc_generic_iop_entries, c);
+
+	list_for_each_entry(dev, &c->devices, list)
+	    i2o_proc_device_add(iopdir, dev);
+
+	return 0;
+}
+
+/**
+ *	i2o_proc_iop_remove - Removes an I2O controller from the i2o proc tree
+ *	@dir: parent proc dir entry
+ *	@c: I2O controller which should be removed
+ *
+ *	Iterate over each i2o proc entry and search controller c. If it is found
+ *	remove it from the tree.
+ */
+static void i2o_proc_iop_remove(struct proc_dir_entry *dir,
+				struct i2o_controller *c)
+{
+	struct proc_dir_entry *pe, *tmp;
+
+	pe = dir->subdir;
+	while (pe) {
+		tmp = pe->next;
+		if (pe->data == c) {
+			i2o_proc_subdir_remove(pe);
+			remove_proc_entry(pe->name, dir);
+		}
+		osm_debug("removing IOP /proc/i2o/%s\n", c->name);
+		pe = tmp;
+	}
+}
+
+/**
+ *	i2o_proc_fs_create - Create the i2o proc fs.
+ *
+ *	Iterate over each I2O controller and create the entries for it.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_proc_fs_create(void)
+{
+	struct i2o_controller *c;
+
+	i2o_proc_dir_root = proc_mkdir("i2o", NULL);
+	if (!i2o_proc_dir_root)
+		return -1;
+
+	i2o_proc_dir_root->owner = THIS_MODULE;
+
+	list_for_each_entry(c, &i2o_controllers, list)
+	    i2o_proc_iop_add(i2o_proc_dir_root, c);
+
+	return 0;
+};
+
+/**
+ *	i2o_proc_fs_destroy - Cleanup the all i2o proc entries
+ *
+ *	Iterate over each I2O controller and remove the entries for it.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __exit i2o_proc_fs_destroy(void)
+{
+	struct i2o_controller *c;
+
+	list_for_each_entry(c, &i2o_controllers, list)
+	    i2o_proc_iop_remove(i2o_proc_dir_root, c);
+
+	remove_proc_entry("i2o", NULL);
+
+	return 0;
+};
+
+/**
+ *	i2o_proc_init - Init function for procfs
+ *
+ *	Registers Proc OSM and creates procfs entries.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_proc_init(void)
+{
+	int rc;
+
+	printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+	rc = i2o_driver_register(&i2o_proc_driver);
+	if (rc)
+		return rc;
+
+	rc = i2o_proc_fs_create();
+	if (rc) {
+		i2o_driver_unregister(&i2o_proc_driver);
+		return rc;
+	}
+
+	return 0;
+};
+
+/**
+ *	i2o_proc_exit - Exit function for procfs
+ *
+ *	Unregisters Proc OSM and removes procfs entries.
+ */
+static void __exit i2o_proc_exit(void)
+{
+	i2o_driver_unregister(&i2o_proc_driver);
+	i2o_proc_fs_destroy();
+};
+
+MODULE_AUTHOR("Deepak Saxena");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_proc_init);
+module_exit(i2o_proc_exit);
diff --git a/drivers/message/i2o/i2o_scsi.c b/drivers/message/i2o/i2o_scsi.c
new file mode 100644
index 000000000000..43f5875e0be5
--- /dev/null
+++ b/drivers/message/i2o/i2o_scsi.c
@@ -0,0 +1,830 @@
+/*
+ * 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, 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.
+ *
+ * For the avoidance of doubt the "preferred form" of this code is one which
+ * is in an open non patent encumbered format. Where cryptographic key signing
+ * forms part of the process of creating an executable the information
+ * including keys needed to generate an equivalently functional executable
+ * are deemed to be part of the source code.
+ *
+ *  Complications for I2O scsi
+ *
+ *	o	Each (bus,lun) is a logical device in I2O. We keep a map
+ *		table. We spoof failed selection for unmapped units
+ *	o	Request sense buffers can come back for free.
+ *	o	Scatter gather is a bit dynamic. We have to investigate at
+ *		setup time.
+ *	o	Some of our resources are dynamically shared. The i2o core
+ *		needs a message reservation protocol to avoid swap v net
+ *		deadlocking. We need to back off queue requests.
+ *
+ *	In general the firmware wants to help. Where its help isn't performance
+ *	useful we just ignore the aid. Its not worth the code in truth.
+ *
+ * Fixes/additions:
+ *	Steve Ralston:
+ *		Scatter gather now works
+ *	Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *		Minor fixes for 2.6.
+ *
+ * To Do:
+ *	64bit cleanups
+ *	Fix the resource management problems.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/jiffies.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/proc_fs.h>
+#include <linux/prefetch.h>
+#include <linux/pci.h>
+#include <linux/blkdev.h>
+#include <linux/i2o.h>
+
+#include <asm/dma.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/atomic.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+
+#define OSM_NAME	"scsi-osm"
+#define OSM_VERSION	"$Rev$"
+#define OSM_DESCRIPTION	"I2O SCSI Peripheral OSM"
+
+static struct i2o_driver i2o_scsi_driver;
+
+static int i2o_scsi_max_id = 16;
+static int i2o_scsi_max_lun = 8;
+
+struct i2o_scsi_host {
+	struct Scsi_Host *scsi_host;	/* pointer to the SCSI host */
+	struct i2o_controller *iop;	/* pointer to the I2O controller */
+	struct i2o_device *channel[0];	/* channel->i2o_dev mapping table */
+};
+
+static struct scsi_host_template i2o_scsi_host_template;
+
+#define I2O_SCSI_CAN_QUEUE	4
+
+/* SCSI OSM class handling definition */
+static struct i2o_class_id i2o_scsi_class_id[] = {
+	{I2O_CLASS_SCSI_PERIPHERAL},
+	{I2O_CLASS_END}
+};
+
+static struct i2o_scsi_host *i2o_scsi_host_alloc(struct i2o_controller *c)
+{
+	struct i2o_scsi_host *i2o_shost;
+	struct i2o_device *i2o_dev;
+	struct Scsi_Host *scsi_host;
+	int max_channel = 0;
+	u8 type;
+	int i;
+	size_t size;
+	i2o_status_block *sb;
+
+	list_for_each_entry(i2o_dev, &c->devices, list)
+	    if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT) {
+		if (i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1) || (type == 1))	/* SCSI bus */
+			max_channel++;
+	}
+
+	if (!max_channel) {
+		osm_warn("no channels found on %s\n", c->name);
+		return ERR_PTR(-EFAULT);
+	}
+
+	size = max_channel * sizeof(struct i2o_device *)
+	    + sizeof(struct i2o_scsi_host);
+
+	scsi_host = scsi_host_alloc(&i2o_scsi_host_template, size);
+	if (!scsi_host) {
+		osm_warn("Could not allocate SCSI host\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	scsi_host->max_channel = max_channel - 1;
+	scsi_host->max_id = i2o_scsi_max_id;
+	scsi_host->max_lun = i2o_scsi_max_lun;
+	scsi_host->this_id = c->unit;
+
+	sb = c->status_block.virt;
+
+	scsi_host->sg_tablesize = (sb->inbound_frame_size -
+				   sizeof(struct i2o_message) / 4 - 6) / 2;
+
+	i2o_shost = (struct i2o_scsi_host *)scsi_host->hostdata;
+	i2o_shost->scsi_host = scsi_host;
+	i2o_shost->iop = c;
+
+	i = 0;
+	list_for_each_entry(i2o_dev, &c->devices, list)
+	    if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT) {
+		if (i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1) || (type == 1))	/* only SCSI bus */
+			i2o_shost->channel[i++] = i2o_dev;
+
+		if (i >= max_channel)
+			break;
+	}
+
+	return i2o_shost;
+};
+
+/**
+ *	i2o_scsi_get_host - Get an I2O SCSI host
+ *	@c: I2O controller to for which to get the SCSI host
+ *
+ *	If the I2O controller already exists as SCSI host, the SCSI host
+ *	is returned, otherwise the I2O controller is added to the SCSI
+ *	core.
+ *
+ *	Returns pointer to the I2O SCSI host on success or NULL on failure.
+ */
+static struct i2o_scsi_host *i2o_scsi_get_host(struct i2o_controller *c)
+{
+	return c->driver_data[i2o_scsi_driver.context];
+};
+
+/**
+ *	i2o_scsi_remove - Remove I2O device from SCSI core
+ *	@dev: device which should be removed
+ *
+ *	Removes the I2O device from the SCSI core again.
+ *
+ *	Returns 0 on success.
+ */
+static int i2o_scsi_remove(struct device *dev)
+{
+	struct i2o_device *i2o_dev = to_i2o_device(dev);
+	struct i2o_controller *c = i2o_dev->iop;
+	struct i2o_scsi_host *i2o_shost;
+	struct scsi_device *scsi_dev;
+
+	i2o_shost = i2o_scsi_get_host(c);
+
+	shost_for_each_device(scsi_dev, i2o_shost->scsi_host)
+	    if (scsi_dev->hostdata == i2o_dev) {
+		scsi_remove_device(scsi_dev);
+		scsi_device_put(scsi_dev);
+		break;
+	}
+
+	return 0;
+};
+
+/**
+ *	i2o_scsi_probe - verify if dev is a I2O SCSI device and install it
+ *	@dev: device to verify if it is a I2O SCSI device
+ *
+ *	Retrieve channel, id and lun for I2O device. If everthing goes well
+ *	register the I2O device as SCSI device on the I2O SCSI controller.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_scsi_probe(struct device *dev)
+{
+	struct i2o_device *i2o_dev = to_i2o_device(dev);
+	struct i2o_controller *c = i2o_dev->iop;
+	struct i2o_scsi_host *i2o_shost;
+	struct Scsi_Host *scsi_host;
+	struct i2o_device *parent;
+	struct scsi_device *scsi_dev;
+	u32 id;
+	u64 lun;
+	int channel = -1;
+	int i;
+
+	i2o_shost = i2o_scsi_get_host(c);
+	if (!i2o_shost)
+		return -EFAULT;
+
+	scsi_host = i2o_shost->scsi_host;
+
+	if (i2o_parm_field_get(i2o_dev, 0, 3, &id, 4) < 0)
+		return -EFAULT;
+
+	if (id >= scsi_host->max_id) {
+		osm_warn("SCSI device id (%d) >= max_id of I2O host (%d)", id,
+			 scsi_host->max_id);
+		return -EFAULT;
+	}
+
+	if (i2o_parm_field_get(i2o_dev, 0, 4, &lun, 8) < 0)
+		return -EFAULT;
+	if (lun >= scsi_host->max_lun) {
+		osm_warn("SCSI device id (%d) >= max_lun of I2O host (%d)",
+			 (unsigned int)lun, scsi_host->max_lun);
+		return -EFAULT;
+	}
+
+	parent = i2o_iop_find_device(c, i2o_dev->lct_data.parent_tid);
+	if (!parent) {
+		osm_warn("can not find parent of device %03x\n",
+			 i2o_dev->lct_data.tid);
+		return -EFAULT;
+	}
+
+	for (i = 0; i <= i2o_shost->scsi_host->max_channel; i++)
+		if (i2o_shost->channel[i] == parent)
+			channel = i;
+
+	if (channel == -1) {
+		osm_warn("can not find channel of device %03x\n",
+			 i2o_dev->lct_data.tid);
+		return -EFAULT;
+	}
+
+	scsi_dev =
+	    __scsi_add_device(i2o_shost->scsi_host, channel, id, lun, i2o_dev);
+
+	if (!scsi_dev) {
+		osm_warn("can not add SCSI device %03x\n",
+			 i2o_dev->lct_data.tid);
+		return -EFAULT;
+	}
+
+	osm_debug("added new SCSI device %03x (cannel: %d, id: %d, lun: %d)\n",
+		  i2o_dev->lct_data.tid, channel, id, (unsigned int)lun);
+
+	return 0;
+};
+
+static const char *i2o_scsi_info(struct Scsi_Host *SChost)
+{
+	struct i2o_scsi_host *hostdata;
+	hostdata = (struct i2o_scsi_host *)SChost->hostdata;
+	return hostdata->iop->name;
+}
+
+/**
+ *	i2o_scsi_reply - SCSI OSM message reply handler
+ *	@c: controller issuing the reply
+ *	@m: message id for flushing
+ *	@msg: the message from the controller
+ *
+ *	Process reply messages (interrupts in normal scsi controller think).
+ *	We can get a variety of messages to process. The normal path is
+ *	scsi command completions. We must also deal with IOP failures,
+ *	the reply to a bus reset and the reply to a LUN query.
+ *
+ *	Returns 0 on success and if the reply should not be flushed or > 0
+ *	on success and if the reply should be flushed. Returns negative error
+ *	code on failure and if the reply should be flushed.
+ */
+static int i2o_scsi_reply(struct i2o_controller *c, u32 m,
+			  struct i2o_message *msg)
+{
+	struct scsi_cmnd *cmd;
+	struct device *dev;
+	u8 as, ds, st;
+
+	cmd = i2o_cntxt_list_get(c, le32_to_cpu(msg->u.s.tcntxt));
+
+	if (msg->u.head[0] & (1 << 13)) {
+		struct i2o_message __iomem *pmsg;	/* preserved message */
+		u32 pm;
+		int err = DID_ERROR;
+
+		pm = le32_to_cpu(msg->body[3]);
+
+		pmsg = i2o_msg_in_to_virt(c, pm);
+
+		osm_err("IOP fail.\n");
+		osm_err("From %d To %d Cmd %d.\n",
+			(msg->u.head[1] >> 12) & 0xFFF,
+			msg->u.head[1] & 0xFFF, msg->u.head[1] >> 24);
+		osm_err("Failure Code %d.\n", msg->body[0] >> 24);
+		if (msg->body[0] & (1 << 16))
+			osm_err("Format error.\n");
+		if (msg->body[0] & (1 << 17))
+			osm_err("Path error.\n");
+		if (msg->body[0] & (1 << 18))
+			osm_err("Path State.\n");
+		if (msg->body[0] & (1 << 18))
+		{
+			osm_err("Congestion.\n");
+			err = DID_BUS_BUSY;
+		}
+
+		osm_debug("Failing message is %p.\n", pmsg);
+
+		cmd = i2o_cntxt_list_get(c, readl(&pmsg->u.s.tcntxt));
+		if (!cmd)
+			return 1;
+
+		cmd->result = err << 16;
+		cmd->scsi_done(cmd);
+
+		/* Now flush the message by making it a NOP */
+		i2o_msg_nop(c, pm);
+
+		return 1;
+	}
+
+	/*
+	 *      Low byte is device status, next is adapter status,
+	 *      (then one byte reserved), then request status.
+	 */
+	ds = (u8) le32_to_cpu(msg->body[0]);
+	as = (u8) (le32_to_cpu(msg->body[0]) >> 8);
+	st = (u8) (le32_to_cpu(msg->body[0]) >> 24);
+
+	/*
+	 *      Is this a control request coming back - eg an abort ?
+	 */
+
+	if (!cmd) {
+		if (st)
+			osm_warn("SCSI abort: %08X", le32_to_cpu(msg->body[0]));
+		osm_info("SCSI abort completed.\n");
+		return -EFAULT;
+	}
+
+	osm_debug("Completed %ld\n", cmd->serial_number);
+
+	if (st) {
+		u32 count, error;
+		/* An error has occurred */
+
+		switch (st) {
+		case 0x06:
+			count = le32_to_cpu(msg->body[1]);
+			if (count < cmd->underflow) {
+				int i;
+
+				osm_err("SCSI underflow 0x%08X 0x%08X\n", count,
+					cmd->underflow);
+				osm_debug("Cmd: ");
+				for (i = 0; i < 15; i++)
+					pr_debug("%02X ", cmd->cmnd[i]);
+				pr_debug(".\n");
+				cmd->result = (DID_ERROR << 16);
+			}
+			break;
+
+		default:
+			error = le32_to_cpu(msg->body[0]);
+
+			osm_err("SCSI error %08x\n", error);
+
+			if ((error & 0xff) == 0x02 /*CHECK_CONDITION */ ) {
+				int i;
+				u32 len = sizeof(cmd->sense_buffer);
+				len = (len > 40) ? 40 : len;
+				// Copy over the sense data
+				memcpy(cmd->sense_buffer, (void *)&msg->body[3],
+				       len);
+				for (i = 0; i <= len; i++)
+					osm_info("%02x\n",
+						 cmd->sense_buffer[i]);
+				if (cmd->sense_buffer[0] == 0x70
+				    && cmd->sense_buffer[2] == DATA_PROTECT) {
+					/* This is to handle an array failed */
+					cmd->result = (DID_TIME_OUT << 16);
+					printk(KERN_WARNING "%s: SCSI Data "
+					       "Protect-Device (%d,%d,%d) "
+					       "hba_status=0x%x, dev_status="
+					       "0x%x, cmd=0x%x\n", c->name,
+					       (u32) cmd->device->channel,
+					       (u32) cmd->device->id,
+					       (u32) cmd->device->lun,
+					       (error >> 8) & 0xff,
+					       error & 0xff, cmd->cmnd[0]);
+				} else
+					cmd->result = (DID_ERROR << 16);
+
+				break;
+			}
+
+			switch (as) {
+			case 0x0E:
+				/* SCSI Reset */
+				cmd->result = DID_RESET << 16;
+				break;
+
+			case 0x0F:
+				cmd->result = DID_PARITY << 16;
+				break;
+
+			default:
+				cmd->result = DID_ERROR << 16;
+				break;
+			}
+
+			break;
+		}
+
+		cmd->scsi_done(cmd);
+		return 1;
+	}
+
+	cmd->result = DID_OK << 16 | ds;
+
+	cmd->scsi_done(cmd);
+
+	dev = &c->pdev->dev;
+	if (cmd->use_sg)
+		dma_unmap_sg(dev, (struct scatterlist *)cmd->buffer,
+			     cmd->use_sg, cmd->sc_data_direction);
+	else if (cmd->request_bufflen)
+		dma_unmap_single(dev, (dma_addr_t) ((long)cmd->SCp.ptr),
+				 cmd->request_bufflen, cmd->sc_data_direction);
+
+	return 1;
+};
+
+/**
+ *	i2o_scsi_notify_controller_add - Retrieve notifications of added
+ *					 controllers
+ *	@c: the controller which was added
+ *
+ *	If a I2O controller is added, we catch the notification to add a
+ *	corresponding Scsi_Host.
+ */
+static void i2o_scsi_notify_controller_add(struct i2o_controller *c)
+{
+	struct i2o_scsi_host *i2o_shost;
+	int rc;
+
+	i2o_shost = i2o_scsi_host_alloc(c);
+	if (IS_ERR(i2o_shost)) {
+		osm_err("Could not initialize SCSI host\n");
+		return;
+	}
+
+	rc = scsi_add_host(i2o_shost->scsi_host, &c->device);
+	if (rc) {
+		osm_err("Could not add SCSI host\n");
+		scsi_host_put(i2o_shost->scsi_host);
+		return;
+	}
+
+	c->driver_data[i2o_scsi_driver.context] = i2o_shost;
+
+	osm_debug("new I2O SCSI host added\n");
+};
+
+/**
+ *	i2o_scsi_notify_controller_remove - Retrieve notifications of removed
+ *					    controllers
+ *	@c: the controller which was removed
+ *
+ *	If a I2O controller is removed, we catch the notification to remove the
+ *	corresponding Scsi_Host.
+ */
+static void i2o_scsi_notify_controller_remove(struct i2o_controller *c)
+{
+	struct i2o_scsi_host *i2o_shost;
+	i2o_shost = i2o_scsi_get_host(c);
+	if (!i2o_shost)
+		return;
+
+	c->driver_data[i2o_scsi_driver.context] = NULL;
+
+	scsi_remove_host(i2o_shost->scsi_host);
+	scsi_host_put(i2o_shost->scsi_host);
+	pr_info("I2O SCSI host removed\n");
+};
+
+/* SCSI OSM driver struct */
+static struct i2o_driver i2o_scsi_driver = {
+	.name = OSM_NAME,
+	.reply = i2o_scsi_reply,
+	.classes = i2o_scsi_class_id,
+	.notify_controller_add = i2o_scsi_notify_controller_add,
+	.notify_controller_remove = i2o_scsi_notify_controller_remove,
+	.driver = {
+		   .probe = i2o_scsi_probe,
+		   .remove = i2o_scsi_remove,
+		   },
+};
+
+/**
+ *	i2o_scsi_queuecommand - queue a SCSI command
+ *	@SCpnt: scsi command pointer
+ *	@done: callback for completion
+ *
+ *	Issue a scsi command asynchronously. Return 0 on success or 1 if
+ *	we hit an error (normally message queue congestion). The only
+ *	minor complication here is that I2O deals with the device addressing
+ *	so we have to map the bus/dev/lun back to an I2O handle as well
+ *	as faking absent devices ourself.
+ *
+ *	Locks: takes the controller lock on error path only
+ */
+
+static int i2o_scsi_queuecommand(struct scsi_cmnd *SCpnt,
+				 void (*done) (struct scsi_cmnd *))
+{
+	struct i2o_controller *c;
+	struct Scsi_Host *host;
+	struct i2o_device *i2o_dev;
+	struct device *dev;
+	int tid;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	u32 scsi_flags, sg_flags;
+	u32 __iomem *mptr;
+	u32 __iomem *lenptr;
+	u32 len, reqlen;
+	int i;
+
+	/*
+	 *      Do the incoming paperwork
+	 */
+
+	i2o_dev = SCpnt->device->hostdata;
+	host = SCpnt->device->host;
+	c = i2o_dev->iop;
+	dev = &c->pdev->dev;
+
+	SCpnt->scsi_done = done;
+
+	if (unlikely(!i2o_dev)) {
+		osm_warn("no I2O device in request\n");
+		SCpnt->result = DID_NO_CONNECT << 16;
+		done(SCpnt);
+		return 0;
+	}
+
+	tid = i2o_dev->lct_data.tid;
+
+	osm_debug("qcmd: Tid = %03x\n", tid);
+	osm_debug("Real scsi messages.\n");
+
+	/*
+	 *      Obtain an I2O message. If there are none free then
+	 *      throw it back to the scsi layer
+	 */
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return SCSI_MLQUEUE_HOST_BUSY;
+
+	/*
+	 *      Put together a scsi execscb message
+	 */
+
+	len = SCpnt->request_bufflen;
+
+	switch (SCpnt->sc_data_direction) {
+	case PCI_DMA_NONE:
+		scsi_flags = 0x00000000;	// DATA NO XFER
+		sg_flags = 0x00000000;
+		break;
+
+	case PCI_DMA_TODEVICE:
+		scsi_flags = 0x80000000;	// DATA OUT (iop-->dev)
+		sg_flags = 0x14000000;
+		break;
+
+	case PCI_DMA_FROMDEVICE:
+		scsi_flags = 0x40000000;	// DATA IN  (iop<--dev)
+		sg_flags = 0x10000000;
+		break;
+
+	default:
+		/* Unknown - kill the command */
+		SCpnt->result = DID_NO_CONNECT << 16;
+		done(SCpnt);
+		return 0;
+	}
+
+	writel(I2O_CMD_SCSI_EXEC << 24 | HOST_TID << 12 | tid, &msg->u.head[1]);
+	writel(i2o_scsi_driver.context, &msg->u.s.icntxt);
+
+	/* We want the SCSI control block back */
+	writel(i2o_cntxt_list_add(c, SCpnt), &msg->u.s.tcntxt);
+
+	/* LSI_920_PCI_QUIRK
+	 *
+	 *      Intermittant observations of msg frame word data corruption
+	 *      observed on msg[4] after:
+	 *        WRITE, READ-MODIFY-WRITE
+	 *      operations.  19990606 -sralston
+	 *
+	 *      (Hence we build this word via tag. Its good practice anyway
+	 *       we don't want fetches over PCI needlessly)
+	 */
+
+	/* Attach tags to the devices */
+	/*
+	   if(SCpnt->device->tagged_supported) {
+	   if(SCpnt->tag == HEAD_OF_QUEUE_TAG)
+	   scsi_flags |= 0x01000000;
+	   else if(SCpnt->tag == ORDERED_QUEUE_TAG)
+	   scsi_flags |= 0x01800000;
+	   }
+	 */
+
+	/* Direction, disconnect ok, tag, CDBLen */
+	writel(scsi_flags | 0x20200000 | SCpnt->cmd_len, &msg->body[0]);
+
+	mptr = &msg->body[1];
+
+	/* Write SCSI command into the message - always 16 byte block */
+	memcpy_toio(mptr, SCpnt->cmnd, 16);
+	mptr += 4;
+	lenptr = mptr++;	/* Remember me - fill in when we know */
+
+	reqlen = 12;		// SINGLE SGE
+
+	/* Now fill in the SGList and command */
+	if (SCpnt->use_sg) {
+		struct scatterlist *sg;
+		int sg_count;
+
+		sg = SCpnt->request_buffer;
+		len = 0;
+
+		sg_count = dma_map_sg(dev, sg, SCpnt->use_sg,
+				      SCpnt->sc_data_direction);
+
+		if (unlikely(sg_count <= 0))
+			return -ENOMEM;
+
+		for (i = SCpnt->use_sg; i > 0; i--) {
+			if (i == 1)
+				sg_flags |= 0xC0000000;
+			writel(sg_flags | sg_dma_len(sg), mptr++);
+			writel(sg_dma_address(sg), mptr++);
+			len += sg_dma_len(sg);
+			sg++;
+		}
+
+		reqlen = mptr - &msg->u.head[0];
+		writel(len, lenptr);
+	} else {
+		len = SCpnt->request_bufflen;
+
+		writel(len, lenptr);
+
+		if (len > 0) {
+			dma_addr_t dma_addr;
+
+			dma_addr = dma_map_single(dev, SCpnt->request_buffer,
+						  SCpnt->request_bufflen,
+						  SCpnt->sc_data_direction);
+			if (!dma_addr)
+				return -ENOMEM;
+
+			SCpnt->SCp.ptr = (void *)(unsigned long)dma_addr;
+			sg_flags |= 0xC0000000;
+			writel(sg_flags | SCpnt->request_bufflen, mptr++);
+			writel(dma_addr, mptr++);
+		} else
+			reqlen = 9;
+	}
+
+	/* Stick the headers on */
+	writel(reqlen << 16 | SGL_OFFSET_10, &msg->u.head[0]);
+
+	/* Queue the message */
+	i2o_msg_post(c, m);
+
+	osm_debug("Issued %ld\n", SCpnt->serial_number);
+
+	return 0;
+};
+
+/**
+ *	i2o_scsi_abort - abort a running command
+ *	@SCpnt: command to abort
+ *
+ *	Ask the I2O controller to abort a command. This is an asynchrnous
+ *	process and our callback handler will see the command complete with an
+ *	aborted message if it succeeds.
+ *
+ *	Returns 0 if the command is successfully aborted or negative error code
+ *	on failure.
+ */
+static int i2o_scsi_abort(struct scsi_cmnd *SCpnt)
+{
+	struct i2o_device *i2o_dev;
+	struct i2o_controller *c;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	int tid;
+	int status = FAILED;
+
+	osm_warn("Aborting command block.\n");
+
+	i2o_dev = SCpnt->device->hostdata;
+	c = i2o_dev->iop;
+	tid = i2o_dev->lct_data.tid;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return SCSI_MLQUEUE_HOST_BUSY;
+
+	writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_SCSI_ABORT << 24 | HOST_TID << 12 | tid,
+	       &msg->u.head[1]);
+	writel(i2o_cntxt_list_get_ptr(c, SCpnt), &msg->body[0]);
+
+	if (i2o_msg_post_wait(c, m, I2O_TIMEOUT_SCSI_SCB_ABORT))
+		status = SUCCESS;
+
+	return status;
+}
+
+/**
+ *	i2o_scsi_bios_param	-	Invent disk geometry
+ *	@sdev: scsi device
+ *	@dev: block layer device
+ *	@capacity: size in sectors
+ *	@ip: geometry array
+ *
+ *	This is anyones guess quite frankly. We use the same rules everyone
+ *	else appears to and hope. It seems to work.
+ */
+
+static int i2o_scsi_bios_param(struct scsi_device *sdev,
+			       struct block_device *dev, sector_t capacity,
+			       int *ip)
+{
+	int size;
+
+	size = capacity;
+	ip[0] = 64;		/* heads                        */
+	ip[1] = 32;		/* sectors                      */
+	if ((ip[2] = size >> 11) > 1024) {	/* cylinders, test for big disk */
+		ip[0] = 255;	/* heads                        */
+		ip[1] = 63;	/* sectors                      */
+		ip[2] = size / (255 * 63);	/* cylinders                    */
+	}
+	return 0;
+}
+
+static struct scsi_host_template i2o_scsi_host_template = {
+	.proc_name = OSM_NAME,
+	.name = OSM_DESCRIPTION,
+	.info = i2o_scsi_info,
+	.queuecommand = i2o_scsi_queuecommand,
+	.eh_abort_handler = i2o_scsi_abort,
+	.bios_param = i2o_scsi_bios_param,
+	.can_queue = I2O_SCSI_CAN_QUEUE,
+	.sg_tablesize = 8,
+	.cmd_per_lun = 6,
+	.use_clustering = ENABLE_CLUSTERING,
+};
+
+/**
+ *	i2o_scsi_init - SCSI OSM initialization function
+ *
+ *	Register SCSI OSM into I2O core.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_scsi_init(void)
+{
+	int rc;
+
+	printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+	/* Register SCSI OSM into I2O core */
+	rc = i2o_driver_register(&i2o_scsi_driver);
+	if (rc) {
+		osm_err("Could not register SCSI driver\n");
+		return rc;
+	}
+
+	return 0;
+};
+
+/**
+ *	i2o_scsi_exit - SCSI OSM exit function
+ *
+ *	Unregisters SCSI OSM from I2O core.
+ */
+static void __exit i2o_scsi_exit(void)
+{
+	/* Unregister I2O SCSI OSM from I2O core */
+	i2o_driver_unregister(&i2o_scsi_driver);
+};
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_scsi_init);
+module_exit(i2o_scsi_exit);
diff --git a/drivers/message/i2o/iop.c b/drivers/message/i2o/iop.c
new file mode 100644
index 000000000000..50c8cedf7a2d
--- /dev/null
+++ b/drivers/message/i2o/iop.c
@@ -0,0 +1,1327 @@
+/*
+ *	Functions to handle I2O controllers and I2O message handling
+ *
+ *	Copyright (C) 1999-2002	Red Hat Software
+ *
+ *	Written by Alan Cox, Building Number Three Ltd
+ *
+ *	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.
+ *
+ *	A lot of the I2O message side code from this is taken from the
+ *	Red Creek RCPCI45 adapter driver by Red Creek Communications
+ *
+ *	Fixes/additions:
+ *		Philipp Rumpf
+ *		Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI>
+ *		Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ *		Deepak Saxena <deepak@plexity.net>
+ *		Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ *		Alan Cox <alan@redhat.com>:
+ *			Ported to Linux 2.5.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Minor fixes for 2.6.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+#include <linux/delay.h>
+
+#define OSM_VERSION	"$Rev$"
+#define OSM_DESCRIPTION	"I2O subsystem"
+
+/* global I2O controller list */
+LIST_HEAD(i2o_controllers);
+
+/*
+ * global I2O System Table. Contains information about all the IOPs in the
+ * system. Used to inform IOPs about each others existence.
+ */
+static struct i2o_dma i2o_systab;
+
+static int i2o_hrt_get(struct i2o_controller *c);
+
+/* Module internal functions from other sources */
+extern struct i2o_driver i2o_exec_driver;
+extern int i2o_exec_lct_get(struct i2o_controller *);
+extern void i2o_device_remove(struct i2o_device *);
+
+extern int __init i2o_driver_init(void);
+extern void __exit i2o_driver_exit(void);
+extern int __init i2o_exec_init(void);
+extern void __exit i2o_exec_exit(void);
+extern int __init i2o_pci_init(void);
+extern void __exit i2o_pci_exit(void);
+extern int i2o_device_init(void);
+extern void i2o_device_exit(void);
+
+/**
+ *	i2o_msg_nop - Returns a message which is not used
+ *	@c: I2O controller from which the message was created
+ *	@m: message which should be returned
+ *
+ *	If you fetch a message via i2o_msg_get, and can't use it, you must
+ *	return the message with this function. Otherwise the message frame
+ *	is lost.
+ */
+void i2o_msg_nop(struct i2o_controller *c, u32 m)
+{
+	struct i2o_message __iomem *msg = c->in_queue.virt + m;
+
+	writel(THREE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(0, &msg->u.head[2]);
+	writel(0, &msg->u.head[3]);
+	i2o_msg_post(c, m);
+};
+
+/**
+ *	i2o_msg_get_wait - obtain an I2O message from the IOP
+ *	@c: I2O controller
+ *	@msg: pointer to a I2O message pointer
+ *	@wait: how long to wait until timeout
+ *
+ *	This function waits up to wait seconds for a message slot to be
+ *	available.
+ *
+ *	On a success the message is returned and the pointer to the message is
+ *	set in msg. The returned message is the physical page frame offset
+ *	address from the read port (see the i2o spec). If no message is
+ *	available returns I2O_QUEUE_EMPTY and msg is leaved untouched.
+ */
+u32 i2o_msg_get_wait(struct i2o_controller *c, struct i2o_message __iomem **msg,
+		     int wait)
+{
+	unsigned long timeout = jiffies + wait * HZ;
+	u32 m;
+
+	while ((m = i2o_msg_get(c, msg)) == I2O_QUEUE_EMPTY) {
+		if (time_after(jiffies, timeout)) {
+			pr_debug("%s: Timeout waiting for message frame.\n",
+				 c->name);
+			return I2O_QUEUE_EMPTY;
+		}
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(1);
+	}
+
+	return m;
+};
+
+#if BITS_PER_LONG == 64
+/**
+ *      i2o_cntxt_list_add - Append a pointer to context list and return a id
+ *	@c: controller to which the context list belong
+ *	@ptr: pointer to add to the context list
+ *
+ *	Because the context field in I2O is only 32-bit large, on 64-bit the
+ *	pointer is to large to fit in the context field. The i2o_cntxt_list
+ *	functions therefore map pointers to context fields.
+ *
+ *	Returns context id > 0 on success or 0 on failure.
+ */
+u32 i2o_cntxt_list_add(struct i2o_controller * c, void *ptr)
+{
+	struct i2o_context_list_element *entry;
+	unsigned long flags;
+
+	if (!ptr)
+		printk(KERN_ERR "%s: couldn't add NULL pointer to context list!"
+		       "\n", c->name);
+
+	entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
+	if (!entry) {
+		printk(KERN_ERR "%s: Could not allocate memory for context "
+		       "list element\n", c->name);
+		return 0;
+	}
+
+	entry->ptr = ptr;
+	entry->timestamp = jiffies;
+	INIT_LIST_HEAD(&entry->list);
+
+	spin_lock_irqsave(&c->context_list_lock, flags);
+
+	if (unlikely(atomic_inc_and_test(&c->context_list_counter)))
+		atomic_inc(&c->context_list_counter);
+
+	entry->context = atomic_read(&c->context_list_counter);
+
+	list_add(&entry->list, &c->context_list);
+
+	spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+	pr_debug("%s: Add context to list %p -> %d\n", c->name, ptr, context);
+
+	return entry->context;
+};
+
+/**
+ *      i2o_cntxt_list_remove - Remove a pointer from the context list
+ *	@c: controller to which the context list belong
+ *	@ptr: pointer which should be removed from the context list
+ *
+ *	Removes a previously added pointer from the context list and returns
+ *	the matching context id.
+ *
+ *	Returns context id on succes or 0 on failure.
+ */
+u32 i2o_cntxt_list_remove(struct i2o_controller * c, void *ptr)
+{
+	struct i2o_context_list_element *entry;
+	u32 context = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&c->context_list_lock, flags);
+	list_for_each_entry(entry, &c->context_list, list)
+	    if (entry->ptr == ptr) {
+		list_del(&entry->list);
+		context = entry->context;
+		kfree(entry);
+		break;
+	}
+	spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+	if (!context)
+		printk(KERN_WARNING "%s: Could not remove nonexistent ptr "
+		       "%p\n", c->name, ptr);
+
+	pr_debug("%s: remove ptr from context list %d -> %p\n", c->name,
+		 context, ptr);
+
+	return context;
+};
+
+/**
+ *      i2o_cntxt_list_get - Get a pointer from the context list and remove it
+ *	@c: controller to which the context list belong
+ *	@context: context id to which the pointer belong
+ *
+ *	Returns pointer to the matching context id on success or NULL on
+ *	failure.
+ */
+void *i2o_cntxt_list_get(struct i2o_controller *c, u32 context)
+{
+	struct i2o_context_list_element *entry;
+	unsigned long flags;
+	void *ptr = NULL;
+
+	spin_lock_irqsave(&c->context_list_lock, flags);
+	list_for_each_entry(entry, &c->context_list, list)
+	    if (entry->context == context) {
+		list_del(&entry->list);
+		ptr = entry->ptr;
+		kfree(entry);
+		break;
+	}
+	spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+	if (!ptr)
+		printk(KERN_WARNING "%s: context id %d not found\n", c->name,
+		       context);
+
+	pr_debug("%s: get ptr from context list %d -> %p\n", c->name, context,
+		 ptr);
+
+	return ptr;
+};
+
+/**
+ *      i2o_cntxt_list_get_ptr - Get a context id from the context list
+ *	@c: controller to which the context list belong
+ *	@ptr: pointer to which the context id should be fetched
+ *
+ *	Returns context id which matches to the pointer on succes or 0 on
+ *	failure.
+ */
+u32 i2o_cntxt_list_get_ptr(struct i2o_controller * c, void *ptr)
+{
+	struct i2o_context_list_element *entry;
+	u32 context = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&c->context_list_lock, flags);
+	list_for_each_entry(entry, &c->context_list, list)
+	    if (entry->ptr == ptr) {
+		context = entry->context;
+		break;
+	}
+	spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+	if (!context)
+		printk(KERN_WARNING "%s: Could not find nonexistent ptr "
+		       "%p\n", c->name, ptr);
+
+	pr_debug("%s: get context id from context list %p -> %d\n", c->name,
+		 ptr, context);
+
+	return context;
+};
+#endif
+
+/**
+ *	i2o_iop_find - Find an I2O controller by id
+ *	@unit: unit number of the I2O controller to search for
+ *
+ *	Lookup the I2O controller on the controller list.
+ *
+ *	Returns pointer to the I2O controller on success or NULL if not found.
+ */
+struct i2o_controller *i2o_find_iop(int unit)
+{
+	struct i2o_controller *c;
+
+	list_for_each_entry(c, &i2o_controllers, list) {
+		if (c->unit == unit)
+			return c;
+	}
+
+	return NULL;
+};
+
+/**
+ *	i2o_iop_find_device - Find a I2O device on an I2O controller
+ *	@c: I2O controller where the I2O device hangs on
+ *	@tid: TID of the I2O device to search for
+ *
+ *	Searches the devices of the I2O controller for a device with TID tid and
+ *	returns it.
+ *
+ *	Returns a pointer to the I2O device if found, otherwise NULL.
+ */
+struct i2o_device *i2o_iop_find_device(struct i2o_controller *c, u16 tid)
+{
+	struct i2o_device *dev;
+
+	list_for_each_entry(dev, &c->devices, list)
+	    if (dev->lct_data.tid == tid)
+		return dev;
+
+	return NULL;
+};
+
+/**
+ *	i2o_quiesce_controller - quiesce controller
+ *	@c: controller
+ *
+ *	Quiesce an IOP. Causes IOP to make external operation quiescent
+ *	(i2o 'READY' state). Internal operation of the IOP continues normally.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_quiesce(struct i2o_controller *c)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	i2o_status_block *sb = c->status_block.virt;
+	int rc;
+
+	i2o_status_get(c);
+
+	/* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */
+	if ((sb->iop_state != ADAPTER_STATE_READY) &&
+	    (sb->iop_state != ADAPTER_STATE_OPERATIONAL))
+		return 0;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_SYS_QUIESCE << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+
+	/* Long timeout needed for quiesce if lots of devices */
+	if ((rc = i2o_msg_post_wait(c, m, 240)))
+		printk(KERN_INFO "%s: Unable to quiesce (status=%#x).\n",
+		       c->name, -rc);
+	else
+		pr_debug("%s: Quiesced.\n", c->name);
+
+	i2o_status_get(c);	// Entered READY state
+
+	return rc;
+};
+
+/**
+ *	i2o_iop_enable - move controller from ready to OPERATIONAL
+ *	@c: I2O controller
+ *
+ *	Enable IOP. This allows the IOP to resume external operations and
+ *	reverses the effect of a quiesce. Returns zero or an error code if
+ *	an error occurs.
+ */
+static int i2o_iop_enable(struct i2o_controller *c)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	i2o_status_block *sb = c->status_block.virt;
+	int rc;
+
+	i2o_status_get(c);
+
+	/* Enable only allowed on READY state */
+	if (sb->iop_state != ADAPTER_STATE_READY)
+		return -EINVAL;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_SYS_ENABLE << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+
+	/* How long of a timeout do we need? */
+	if ((rc = i2o_msg_post_wait(c, m, 240)))
+		printk(KERN_ERR "%s: Could not enable (status=%#x).\n",
+		       c->name, -rc);
+	else
+		pr_debug("%s: Enabled.\n", c->name);
+
+	i2o_status_get(c);	// entered OPERATIONAL state
+
+	return rc;
+};
+
+/**
+ *	i2o_iop_quiesce_all - Quiesce all I2O controllers on the system
+ *
+ *	Quiesce all I2O controllers which are connected to the system.
+ */
+static inline void i2o_iop_quiesce_all(void)
+{
+	struct i2o_controller *c, *tmp;
+
+	list_for_each_entry_safe(c, tmp, &i2o_controllers, list) {
+		if (!c->no_quiesce)
+			i2o_iop_quiesce(c);
+	}
+};
+
+/**
+ *	i2o_iop_enable_all - Enables all controllers on the system
+ *
+ *	Enables all I2O controllers which are connected to the system.
+ */
+static inline void i2o_iop_enable_all(void)
+{
+	struct i2o_controller *c, *tmp;
+
+	list_for_each_entry_safe(c, tmp, &i2o_controllers, list)
+	    i2o_iop_enable(c);
+};
+
+/**
+ *	i2o_clear_controller - Bring I2O controller into HOLD state
+ *	@c: controller
+ *
+ *	Clear an IOP to HOLD state, ie. terminate external operations, clear all
+ *	input queues and prepare for a system restart. IOP's internal operation
+ *	continues normally and the outbound queue is alive. The IOP is not
+ *	expected to rebuild its LCT.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_clear(struct i2o_controller *c)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	int rc;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	/* Quiesce all IOPs first */
+	i2o_iop_quiesce_all();
+
+	writel(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_ADAPTER_CLEAR << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+
+	if ((rc = i2o_msg_post_wait(c, m, 30)))
+		printk(KERN_INFO "%s: Unable to clear (status=%#x).\n",
+		       c->name, -rc);
+	else
+		pr_debug("%s: Cleared.\n", c->name);
+
+	/* Enable all IOPs */
+	i2o_iop_enable_all();
+
+	i2o_status_get(c);
+
+	return rc;
+}
+
+/**
+ *	i2o_iop_reset - reset an I2O controller
+ *	@c: controller to reset
+ *
+ *	Reset the IOP into INIT state and wait until IOP gets into RESET state.
+ *	Terminate all external operations, clear IOP's inbound and outbound
+ *	queues, terminate all DDMs, and reload the IOP's operating environment
+ *	and all local DDMs. The IOP rebuilds its LCT.
+ */
+static int i2o_iop_reset(struct i2o_controller *c)
+{
+	u8 *status = c->status.virt;
+	struct i2o_message __iomem *msg;
+	u32 m;
+	unsigned long timeout;
+	i2o_status_block *sb = c->status_block.virt;
+	int rc = 0;
+
+	pr_debug("%s: Resetting controller\n", c->name);
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	memset(status, 0, 8);
+
+	/* Quiesce all IOPs first */
+	i2o_iop_quiesce_all();
+
+	writel(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_ADAPTER_RESET << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(i2o_exec_driver.context, &msg->u.s.icntxt);
+	writel(0, &msg->u.s.tcntxt);	//FIXME: use reasonable transaction context
+	writel(0, &msg->body[0]);
+	writel(0, &msg->body[1]);
+	writel(i2o_ptr_low((void *)c->status.phys), &msg->body[2]);
+	writel(i2o_ptr_high((void *)c->status.phys), &msg->body[3]);
+
+	i2o_msg_post(c, m);
+
+	/* Wait for a reply */
+	timeout = jiffies + I2O_TIMEOUT_RESET * HZ;
+	while (!*status) {
+		if (time_after(jiffies, timeout)) {
+			printk(KERN_ERR "%s: IOP reset timeout.\n", c->name);
+			rc = -ETIMEDOUT;
+			goto exit;
+		}
+
+		/* Promise bug */
+		if (status[1] || status[4]) {
+			*status = 0;
+			break;
+		}
+
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(1);
+
+		rmb();
+	}
+
+	if (*status == I2O_CMD_IN_PROGRESS) {
+		/*
+		 * Once the reset is sent, the IOP goes into the INIT state
+		 * which is indeterminate.  We need to wait until the IOP
+		 * has rebooted before we can let the system talk to
+		 * it. We read the inbound Free_List until a message is
+		 * available. If we can't read one in the given ammount of
+		 * time, we assume the IOP could not reboot properly.
+		 */
+		pr_debug("%s: Reset in progress, waiting for reboot...\n",
+			 c->name);
+
+		m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_RESET);
+		while (m == I2O_QUEUE_EMPTY) {
+			if (time_after(jiffies, timeout)) {
+				printk(KERN_ERR "%s: IOP reset timeout.\n",
+				       c->name);
+				rc = -ETIMEDOUT;
+				goto exit;
+			}
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			schedule_timeout(1);
+
+			m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_RESET);
+		}
+		i2o_msg_nop(c, m);
+	}
+
+	/* from here all quiesce commands are safe */
+	c->no_quiesce = 0;
+
+	/* If IopReset was rejected or didn't perform reset, try IopClear */
+	i2o_status_get(c);
+	if (*status == I2O_CMD_REJECTED || sb->iop_state != ADAPTER_STATE_RESET) {
+		printk(KERN_WARNING "%s: Reset rejected, trying to clear\n",
+		       c->name);
+		i2o_iop_clear(c);
+	} else
+		pr_debug("%s: Reset completed.\n", c->name);
+
+      exit:
+	/* Enable all IOPs */
+	i2o_iop_enable_all();
+
+	return rc;
+};
+
+/**
+ *	i2o_iop_init_outbound_queue - setup the outbound message queue
+ *	@c: I2O controller
+ *
+ *	Clear and (re)initialize IOP's outbound queue and post the message
+ *	frames to the IOP.
+ *
+ *	Returns 0 on success or a negative errno code on failure.
+ */
+static int i2o_iop_init_outbound_queue(struct i2o_controller *c)
+{
+	u8 *status = c->status.virt;
+	u32 m;
+	struct i2o_message __iomem *msg;
+	ulong timeout;
+	int i;
+
+	pr_debug("%s: Initializing Outbound Queue...\n", c->name);
+
+	memset(status, 0, 4);
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(EIGHT_WORD_MSG_SIZE | TRL_OFFSET_6, &msg->u.head[0]);
+	writel(I2O_CMD_OUTBOUND_INIT << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(i2o_exec_driver.context, &msg->u.s.icntxt);
+	writel(0x0106, &msg->u.s.tcntxt);	/* FIXME: why 0x0106, maybe in
+						   Spec? */
+	writel(PAGE_SIZE, &msg->body[0]);
+	writel(MSG_FRAME_SIZE << 16 | 0x80, &msg->body[1]);	/* Outbound msg frame
+								   size in words and Initcode */
+	writel(0xd0000004, &msg->body[2]);
+	writel(i2o_ptr_low((void *)c->status.phys), &msg->body[3]);
+	writel(i2o_ptr_high((void *)c->status.phys), &msg->body[4]);
+
+	i2o_msg_post(c, m);
+
+	timeout = jiffies + I2O_TIMEOUT_INIT_OUTBOUND_QUEUE * HZ;
+	while (*status <= I2O_CMD_IN_PROGRESS) {
+		if (time_after(jiffies, timeout)) {
+			printk(KERN_WARNING "%s: Timeout Initializing\n",
+			       c->name);
+			return -ETIMEDOUT;
+		}
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(1);
+
+		rmb();
+	}
+
+	m = c->out_queue.phys;
+
+	/* Post frames */
+	for (i = 0; i < NMBR_MSG_FRAMES; i++) {
+		i2o_flush_reply(c, m);
+		udelay(1);	/* Promise */
+		m += MSG_FRAME_SIZE * 4;
+	}
+
+	return 0;
+}
+
+/**
+ *	i2o_iop_send_nop - send a core NOP message
+ *	@c: controller
+ *
+ *	Send a no-operation message with a reply set to cause no
+ *	action either. Needed for bringing up promise controllers.
+ */
+static int i2o_iop_send_nop(struct i2o_controller *c)
+{
+	struct i2o_message __iomem *msg;
+	u32 m = i2o_msg_get_wait(c, &msg, HZ);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+	i2o_msg_nop(c, m);
+	return 0;
+}
+
+/**
+ *	i2o_iop_activate - Bring controller up to HOLD
+ *	@c: controller
+ *
+ *	This function brings an I2O controller into HOLD state. The adapter
+ *	is reset if necessary and then the queues and resource table are read.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_activate(struct i2o_controller *c)
+{
+	struct pci_dev *i960 = NULL;
+	i2o_status_block *sb = c->status_block.virt;
+	int rc;
+
+	if (c->promise) {
+		/* Beat up the hardware first of all */
+		i960 =
+		    pci_find_slot(c->pdev->bus->number,
+				  PCI_DEVFN(PCI_SLOT(c->pdev->devfn), 0));
+		if (i960)
+			pci_write_config_word(i960, 0x42, 0);
+
+		/* Follow this sequence precisely or the controller
+		   ceases to perform useful functions until reboot */
+		if ((rc = i2o_iop_send_nop(c)))
+			return rc;
+
+		if ((rc = i2o_iop_reset(c)))
+			return rc;
+	}
+
+	/* In INIT state, Wait Inbound Q to initialize (in i2o_status_get) */
+	/* In READY state, Get status */
+
+	rc = i2o_status_get(c);
+	if (rc) {
+		printk(KERN_INFO "%s: Unable to obtain status, "
+		       "attempting a reset.\n", c->name);
+		if (i2o_iop_reset(c))
+			return rc;
+	}
+
+	if (sb->i2o_version > I2OVER15) {
+		printk(KERN_ERR "%s: Not running version 1.5 of the I2O "
+		       "Specification.\n", c->name);
+		return -ENODEV;
+	}
+
+	switch (sb->iop_state) {
+	case ADAPTER_STATE_FAULTED:
+		printk(KERN_CRIT "%s: hardware fault\n", c->name);
+		return -ENODEV;
+
+	case ADAPTER_STATE_READY:
+	case ADAPTER_STATE_OPERATIONAL:
+	case ADAPTER_STATE_HOLD:
+	case ADAPTER_STATE_FAILED:
+		pr_debug("%s: already running, trying to reset...\n", c->name);
+		if (i2o_iop_reset(c))
+			return -ENODEV;
+	}
+
+	rc = i2o_iop_init_outbound_queue(c);
+	if (rc)
+		return rc;
+
+	if (c->promise) {
+		if ((rc = i2o_iop_send_nop(c)))
+			return rc;
+
+		if ((rc = i2o_status_get(c)))
+			return rc;
+
+		if (i960)
+			pci_write_config_word(i960, 0x42, 0x3FF);
+	}
+
+	/* In HOLD state */
+
+	rc = i2o_hrt_get(c);
+
+	return rc;
+};
+
+/**
+ *	i2o_iop_systab_set - Set the I2O System Table of the specified IOP
+ *	@c: I2O controller to which the system table should be send
+ *
+ *	Before the systab could be set i2o_systab_build() must be called.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_systab_set(struct i2o_controller *c)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	i2o_status_block *sb = c->status_block.virt;
+	struct device *dev = &c->pdev->dev;
+	struct resource *root;
+	int rc;
+
+	if (sb->current_mem_size < sb->desired_mem_size) {
+		struct resource *res = &c->mem_resource;
+		res->name = c->pdev->bus->name;
+		res->flags = IORESOURCE_MEM;
+		res->start = 0;
+		res->end = 0;
+		printk(KERN_INFO "%s: requires private memory resources.\n",
+		       c->name);
+		root = pci_find_parent_resource(c->pdev, res);
+		if (root == NULL)
+			printk(KERN_WARNING "%s: Can't find parent resource!\n",
+			       c->name);
+		if (root && allocate_resource(root, res, sb->desired_mem_size, sb->desired_mem_size, sb->desired_mem_size, 1 << 20,	/* Unspecified, so use 1Mb and play safe */
+					      NULL, NULL) >= 0) {
+			c->mem_alloc = 1;
+			sb->current_mem_size = 1 + res->end - res->start;
+			sb->current_mem_base = res->start;
+			printk(KERN_INFO "%s: allocated %ld bytes of PCI memory"
+			       " at 0x%08lX.\n", c->name,
+			       1 + res->end - res->start, res->start);
+		}
+	}
+
+	if (sb->current_io_size < sb->desired_io_size) {
+		struct resource *res = &c->io_resource;
+		res->name = c->pdev->bus->name;
+		res->flags = IORESOURCE_IO;
+		res->start = 0;
+		res->end = 0;
+		printk(KERN_INFO "%s: requires private memory resources.\n",
+		       c->name);
+		root = pci_find_parent_resource(c->pdev, res);
+		if (root == NULL)
+			printk(KERN_WARNING "%s: Can't find parent resource!\n",
+			       c->name);
+		if (root && allocate_resource(root, res, sb->desired_io_size, sb->desired_io_size, sb->desired_io_size, 1 << 20,	/* Unspecified, so use 1Mb and play safe */
+					      NULL, NULL) >= 0) {
+			c->io_alloc = 1;
+			sb->current_io_size = 1 + res->end - res->start;
+			sb->current_mem_base = res->start;
+			printk(KERN_INFO "%s: allocated %ld bytes of PCI I/O at"
+			       " 0x%08lX.\n", c->name,
+			       1 + res->end - res->start, res->start);
+		}
+	}
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	i2o_systab.phys = dma_map_single(dev, i2o_systab.virt, i2o_systab.len,
+					 PCI_DMA_TODEVICE);
+	if (!i2o_systab.phys) {
+		i2o_msg_nop(c, m);
+		return -ENOMEM;
+	}
+
+	writel(I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6, &msg->u.head[0]);
+	writel(I2O_CMD_SYS_TAB_SET << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+
+	/*
+	 * Provide three SGL-elements:
+	 * System table (SysTab), Private memory space declaration and
+	 * Private i/o space declaration
+	 *
+	 * FIXME: is this still true?
+	 * Nasty one here. We can't use dma_alloc_coherent to send the
+	 * same table to everyone. We have to go remap it for them all
+	 */
+
+	writel(c->unit + 2, &msg->body[0]);
+	writel(0, &msg->body[1]);
+	writel(0x54000000 | i2o_systab.len, &msg->body[2]);
+	writel(i2o_systab.phys, &msg->body[3]);
+	writel(0x54000000 | sb->current_mem_size, &msg->body[4]);
+	writel(sb->current_mem_base, &msg->body[5]);
+	writel(0xd4000000 | sb->current_io_size, &msg->body[6]);
+	writel(sb->current_io_base, &msg->body[6]);
+
+	rc = i2o_msg_post_wait(c, m, 120);
+
+	dma_unmap_single(dev, i2o_systab.phys, i2o_systab.len,
+			 PCI_DMA_TODEVICE);
+
+	if (rc < 0)
+		printk(KERN_ERR "%s: Unable to set SysTab (status=%#x).\n",
+		       c->name, -rc);
+	else
+		pr_debug("%s: SysTab set.\n", c->name);
+
+	i2o_status_get(c);	// Entered READY state
+
+	return rc;
+}
+
+/**
+ *	i2o_iop_online - Bring a controller online into OPERATIONAL state.
+ *	@c: I2O controller
+ *
+ *	Send the system table and enable the I2O controller.
+ *
+ *	Returns 0 on success or negativer error code on failure.
+ */
+static int i2o_iop_online(struct i2o_controller *c)
+{
+	int rc;
+
+	rc = i2o_iop_systab_set(c);
+	if (rc)
+		return rc;
+
+	/* In READY state */
+	pr_debug("%s: Attempting to enable...\n", c->name);
+	rc = i2o_iop_enable(c);
+	if (rc)
+		return rc;
+
+	return 0;
+};
+
+/**
+ *	i2o_iop_remove - Remove the I2O controller from the I2O core
+ *	@c: I2O controller
+ *
+ *	Remove the I2O controller from the I2O core. If devices are attached to
+ *	the controller remove these also and finally reset the controller.
+ */
+void i2o_iop_remove(struct i2o_controller *c)
+{
+	struct i2o_device *dev, *tmp;
+
+	pr_debug("%s: deleting controller\n", c->name);
+
+	i2o_driver_notify_controller_remove_all(c);
+
+	list_del(&c->list);
+
+	list_for_each_entry_safe(dev, tmp, &c->devices, list)
+	    i2o_device_remove(dev);
+
+	/* Ask the IOP to switch to RESET state */
+	i2o_iop_reset(c);
+}
+
+/**
+ *	i2o_systab_build - Build system table
+ *
+ *	The system table contains information about all the IOPs in the system
+ *	(duh) and is used by the Executives on the IOPs to establish peer2peer
+ *	connections. We're not supporting peer2peer at the moment, but this
+ *	will be needed down the road for things like lan2lan forwarding.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_systab_build(void)
+{
+	struct i2o_controller *c, *tmp;
+	int num_controllers = 0;
+	u32 change_ind = 0;
+	int count = 0;
+	struct i2o_sys_tbl *systab = i2o_systab.virt;
+
+	list_for_each_entry_safe(c, tmp, &i2o_controllers, list)
+	    num_controllers++;
+
+	if (systab) {
+		change_ind = systab->change_ind;
+		kfree(i2o_systab.virt);
+	}
+
+	/* Header + IOPs */
+	i2o_systab.len = sizeof(struct i2o_sys_tbl) + num_controllers *
+	    sizeof(struct i2o_sys_tbl_entry);
+
+	systab = i2o_systab.virt = kmalloc(i2o_systab.len, GFP_KERNEL);
+	if (!systab) {
+		printk(KERN_ERR "i2o: unable to allocate memory for System "
+		       "Table\n");
+		return -ENOMEM;
+	}
+	memset(systab, 0, i2o_systab.len);
+
+	systab->version = I2OVERSION;
+	systab->change_ind = change_ind + 1;
+
+	list_for_each_entry_safe(c, tmp, &i2o_controllers, list) {
+		i2o_status_block *sb;
+
+		if (count >= num_controllers) {
+			printk(KERN_ERR "i2o: controller added while building "
+			       "system table\n");
+			break;
+		}
+
+		sb = c->status_block.virt;
+
+		/*
+		 * Get updated IOP state so we have the latest information
+		 *
+		 * We should delete the controller at this point if it
+		 * doesn't respond since if it's not on the system table
+		 * it is techninically not part of the I2O subsystem...
+		 */
+		if (unlikely(i2o_status_get(c))) {
+			printk(KERN_ERR "%s: Deleting b/c could not get status"
+			       " while attempting to build system table\n",
+			       c->name);
+			i2o_iop_remove(c);
+			continue;	// try the next one
+		}
+
+		systab->iops[count].org_id = sb->org_id;
+		systab->iops[count].iop_id = c->unit + 2;
+		systab->iops[count].seg_num = 0;
+		systab->iops[count].i2o_version = sb->i2o_version;
+		systab->iops[count].iop_state = sb->iop_state;
+		systab->iops[count].msg_type = sb->msg_type;
+		systab->iops[count].frame_size = sb->inbound_frame_size;
+		systab->iops[count].last_changed = change_ind;
+		systab->iops[count].iop_capabilities = sb->iop_capabilities;
+		systab->iops[count].inbound_low = i2o_ptr_low(c->post_port);
+		systab->iops[count].inbound_high = i2o_ptr_high(c->post_port);
+
+		count++;
+	}
+
+	systab->num_entries = count;
+
+	return 0;
+};
+
+/**
+ *	i2o_parse_hrt - Parse the hardware resource table.
+ *	@c: I2O controller
+ *
+ *	We don't do anything with it except dumping it (in debug mode).
+ *
+ *	Returns 0.
+ */
+static int i2o_parse_hrt(struct i2o_controller *c)
+{
+	i2o_dump_hrt(c);
+	return 0;
+};
+
+/**
+ *	i2o_status_get - Get the status block from the I2O controller
+ *	@c: I2O controller
+ *
+ *	Issue a status query on the controller. This updates the attached
+ *	status block. The status block could then be accessed through
+ *	c->status_block.
+ *
+ *	Returns 0 on sucess or negative error code on failure.
+ */
+int i2o_status_get(struct i2o_controller *c)
+{
+	struct i2o_message __iomem *msg;
+	u32 m;
+	u8 *status_block;
+	unsigned long timeout;
+
+	status_block = (u8 *) c->status_block.virt;
+	memset(status_block, 0, sizeof(i2o_status_block));
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_STATUS_GET << 24 | HOST_TID << 12 | ADAPTER_TID,
+	       &msg->u.head[1]);
+	writel(i2o_exec_driver.context, &msg->u.s.icntxt);
+	writel(0, &msg->u.s.tcntxt);	// FIXME: use resonable transaction context
+	writel(0, &msg->body[0]);
+	writel(0, &msg->body[1]);
+	writel(i2o_ptr_low((void *)c->status_block.phys), &msg->body[2]);
+	writel(i2o_ptr_high((void *)c->status_block.phys), &msg->body[3]);
+	writel(sizeof(i2o_status_block), &msg->body[4]);	/* always 88 bytes */
+
+	i2o_msg_post(c, m);
+
+	/* Wait for a reply */
+	timeout = jiffies + I2O_TIMEOUT_STATUS_GET * HZ;
+	while (status_block[87] != 0xFF) {
+		if (time_after(jiffies, timeout)) {
+			printk(KERN_ERR "%s: Get status timeout.\n", c->name);
+			return -ETIMEDOUT;
+		}
+
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(1);
+
+		rmb();
+	}
+
+#ifdef DEBUG
+	i2o_debug_state(c);
+#endif
+
+	return 0;
+}
+
+/*
+ *	i2o_hrt_get - Get the Hardware Resource Table from the I2O controller
+ *	@c: I2O controller from which the HRT should be fetched
+ *
+ *	The HRT contains information about possible hidden devices but is
+ *	mostly useless to us.
+ *
+ *	Returns 0 on success or negativer error code on failure.
+ */
+static int i2o_hrt_get(struct i2o_controller *c)
+{
+	int rc;
+	int i;
+	i2o_hrt *hrt = c->hrt.virt;
+	u32 size = sizeof(i2o_hrt);
+	struct device *dev = &c->pdev->dev;
+
+	for (i = 0; i < I2O_HRT_GET_TRIES; i++) {
+		struct i2o_message __iomem *msg;
+		u32 m;
+
+		m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+		if (m == I2O_QUEUE_EMPTY)
+			return -ETIMEDOUT;
+
+		writel(SIX_WORD_MSG_SIZE | SGL_OFFSET_4, &msg->u.head[0]);
+		writel(I2O_CMD_HRT_GET << 24 | HOST_TID << 12 | ADAPTER_TID,
+		       &msg->u.head[1]);
+		writel(0xd0000000 | c->hrt.len, &msg->body[0]);
+		writel(c->hrt.phys, &msg->body[1]);
+
+		rc = i2o_msg_post_wait_mem(c, m, 20, &c->hrt);
+
+		if (rc < 0) {
+			printk(KERN_ERR "%s: Unable to get HRT (status=%#x)\n",
+			       c->name, -rc);
+			return rc;
+		}
+
+		size = hrt->num_entries * hrt->entry_len << 2;
+		if (size > c->hrt.len) {
+			if (i2o_dma_realloc(dev, &c->hrt, size, GFP_KERNEL))
+				return -ENOMEM;
+			else
+				hrt = c->hrt.virt;
+		} else
+			return i2o_parse_hrt(c);
+	}
+
+	printk(KERN_ERR "%s: Unable to get HRT after %d tries, giving up\n",
+	       c->name, I2O_HRT_GET_TRIES);
+
+	return -EBUSY;
+}
+
+/**
+ *	i2o_iop_alloc - Allocate and initialize a i2o_controller struct
+ *
+ *	Allocate the necessary memory for a i2o_controller struct and
+ *	initialize the lists.
+ *
+ *	Returns a pointer to the I2O controller or a negative error code on
+ *	failure.
+ */
+struct i2o_controller *i2o_iop_alloc(void)
+{
+	static int unit = 0;	/* 0 and 1 are NULL IOP and Local Host */
+	struct i2o_controller *c;
+
+	c = kmalloc(sizeof(*c), GFP_KERNEL);
+	if (!c) {
+		printk(KERN_ERR "i2o: Insufficient memory to allocate a I2O "
+		       "controller.\n");
+		return ERR_PTR(-ENOMEM);
+	}
+	memset(c, 0, sizeof(*c));
+
+	INIT_LIST_HEAD(&c->devices);
+	spin_lock_init(&c->lock);
+	init_MUTEX(&c->lct_lock);
+	c->unit = unit++;
+	sprintf(c->name, "iop%d", c->unit);
+
+#if BITS_PER_LONG == 64
+	spin_lock_init(&c->context_list_lock);
+	atomic_set(&c->context_list_counter, 0);
+	INIT_LIST_HEAD(&c->context_list);
+#endif
+
+	return c;
+};
+
+/**
+ *	i2o_iop_free - Free the i2o_controller struct
+ *	@c: I2O controller to free
+ */
+void i2o_iop_free(struct i2o_controller *c)
+{
+	kfree(c);
+};
+
+/**
+ *	i2o_iop_add - Initialize the I2O controller and add him to the I2O core
+ *	@c: controller
+ *
+ *	Initialize the I2O controller and if no error occurs add him to the I2O
+ *	core.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+int i2o_iop_add(struct i2o_controller *c)
+{
+	int rc;
+
+	printk(KERN_INFO "%s: Activating I2O controller...\n", c->name);
+	printk(KERN_INFO "%s: This may take a few minutes if there are many "
+	       "devices\n", c->name);
+
+	if ((rc = i2o_iop_activate(c))) {
+		printk(KERN_ERR "%s: could not activate controller\n",
+		       c->name);
+		i2o_iop_reset(c);
+		return rc;
+	}
+
+	pr_debug("%s: building sys table...\n", c->name);
+
+	if ((rc = i2o_systab_build())) {
+		i2o_iop_reset(c);
+		return rc;
+	}
+
+	pr_debug("%s: online controller...\n", c->name);
+
+	if ((rc = i2o_iop_online(c))) {
+		i2o_iop_reset(c);
+		return rc;
+	}
+
+	pr_debug("%s: getting LCT...\n", c->name);
+
+	if ((rc = i2o_exec_lct_get(c))) {
+		i2o_iop_reset(c);
+		return rc;
+	}
+
+	list_add(&c->list, &i2o_controllers);
+
+	i2o_driver_notify_controller_add_all(c);
+
+	printk(KERN_INFO "%s: Controller added\n", c->name);
+
+	return 0;
+};
+
+/**
+ *	i2o_event_register - Turn on/off event notification for a I2O device
+ *	@dev: I2O device which should receive the event registration request
+ *	@drv: driver which want to get notified
+ *	@tcntxt: transaction context to use with this notifier
+ *	@evt_mask: mask of events
+ *
+ *	Create and posts an event registration message to the task. No reply
+ *	is waited for, or expected. If you do not want further notifications,
+ *	call the i2o_event_register again with a evt_mask of 0.
+ *
+ *	Returns 0 on success or -ETIMEDOUT if no message could be fetched for
+ *	sending the request.
+ */
+int i2o_event_register(struct i2o_device *dev, struct i2o_driver *drv,
+		       int tcntxt, u32 evt_mask)
+{
+	struct i2o_controller *c = dev->iop;
+	struct i2o_message __iomem *msg;
+	u32 m;
+
+	m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+	if (m == I2O_QUEUE_EMPTY)
+		return -ETIMEDOUT;
+
+	writel(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->u.head[0]);
+	writel(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | dev->lct_data.
+	       tid, &msg->u.head[1]);
+	writel(drv->context, &msg->u.s.icntxt);
+	writel(tcntxt, &msg->u.s.tcntxt);
+	writel(evt_mask, &msg->body[0]);
+
+	i2o_msg_post(c, m);
+
+	return 0;
+};
+
+/**
+ *	i2o_iop_init - I2O main initialization function
+ *
+ *	Initialize the I2O drivers (OSM) functions, register the Executive OSM,
+ *	initialize the I2O PCI part and finally initialize I2O device stuff.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_iop_init(void)
+{
+	int rc = 0;
+
+	printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+	rc = i2o_device_init();
+	if (rc)
+		goto exit;
+
+	rc = i2o_driver_init();
+	if (rc)
+		goto device_exit;
+
+	rc = i2o_exec_init();
+	if (rc)
+		goto driver_exit;
+
+	rc = i2o_pci_init();
+	if (rc < 0)
+		goto exec_exit;
+
+	return 0;
+
+      exec_exit:
+	i2o_exec_exit();
+
+      driver_exit:
+	i2o_driver_exit();
+
+      device_exit:
+	i2o_device_exit();
+
+      exit:
+	return rc;
+}
+
+/**
+ *	i2o_iop_exit - I2O main exit function
+ *
+ *	Removes I2O controllers from PCI subsystem and shut down OSMs.
+ */
+static void __exit i2o_iop_exit(void)
+{
+	i2o_pci_exit();
+	i2o_exec_exit();
+	i2o_driver_exit();
+	i2o_device_exit();
+};
+
+module_init(i2o_iop_init);
+module_exit(i2o_iop_exit);
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+#if BITS_PER_LONG == 64
+EXPORT_SYMBOL(i2o_cntxt_list_add);
+EXPORT_SYMBOL(i2o_cntxt_list_get);
+EXPORT_SYMBOL(i2o_cntxt_list_remove);
+EXPORT_SYMBOL(i2o_cntxt_list_get_ptr);
+#endif
+EXPORT_SYMBOL(i2o_msg_get_wait);
+EXPORT_SYMBOL(i2o_msg_nop);
+EXPORT_SYMBOL(i2o_find_iop);
+EXPORT_SYMBOL(i2o_iop_find_device);
+EXPORT_SYMBOL(i2o_event_register);
+EXPORT_SYMBOL(i2o_status_get);
+EXPORT_SYMBOL(i2o_controllers);
diff --git a/drivers/message/i2o/pci.c b/drivers/message/i2o/pci.c
new file mode 100644
index 000000000000..e772752f056d
--- /dev/null
+++ b/drivers/message/i2o/pci.c
@@ -0,0 +1,528 @@
+/*
+ *	PCI handling of I2O controller
+ *
+ * 	Copyright (C) 1999-2002	Red Hat Software
+ *
+ *	Written by Alan Cox, Building Number Three Ltd
+ *
+ *	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.
+ *
+ *	A lot of the I2O message side code from this is taken from the Red
+ *	Creek RCPCI45 adapter driver by Red Creek Communications
+ *
+ *	Fixes/additions:
+ *		Philipp Rumpf
+ *		Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI>
+ *		Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ *		Deepak Saxena <deepak@plexity.net>
+ *		Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ *		Alan Cox <alan@redhat.com>:
+ *			Ported to Linux 2.5.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Minor fixes for 2.6.
+ *		Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ *			Support for sysfs included.
+ */
+
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/i2o.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif				// CONFIG_MTRR
+
+/* Module internal functions from other sources */
+extern struct i2o_controller *i2o_iop_alloc(void);
+extern void i2o_iop_free(struct i2o_controller *);
+
+extern int i2o_iop_add(struct i2o_controller *);
+extern void i2o_iop_remove(struct i2o_controller *);
+
+extern int i2o_driver_dispatch(struct i2o_controller *, u32,
+			       struct i2o_message *);
+
+/* PCI device id table for all I2O controllers */
+static struct pci_device_id __devinitdata i2o_pci_ids[] = {
+	{PCI_DEVICE_CLASS(PCI_CLASS_INTELLIGENT_I2O << 8, 0xffff00)},
+	{PCI_DEVICE(PCI_VENDOR_ID_DPT, 0xa511)},
+	{0}
+};
+
+/**
+ *	i2o_dma_realloc - Realloc DMA memory
+ *	@dev: struct device pointer to the PCI device of the I2O controller
+ *	@addr: pointer to a i2o_dma struct DMA buffer
+ *	@len: new length of memory
+ *	@gfp_mask: GFP mask
+ *
+ *	If there was something allocated in the addr, free it first. If len > 0
+ *	than try to allocate it and write the addresses back to the addr
+ *	structure. If len == 0 set the virtual address to NULL.
+ *
+ *	Returns the 0 on success or negative error code on failure.
+ */
+int i2o_dma_realloc(struct device *dev, struct i2o_dma *addr, size_t len,
+		    unsigned int gfp_mask)
+{
+	i2o_dma_free(dev, addr);
+
+	if (len)
+		return i2o_dma_alloc(dev, addr, len, gfp_mask);
+
+	return 0;
+};
+
+/**
+ *	i2o_pci_free - Frees the DMA memory for the I2O controller
+ *	@c: I2O controller to free
+ *
+ *	Remove all allocated DMA memory and unmap memory IO regions. If MTRR
+ *	is enabled, also remove it again.
+ */
+static void i2o_pci_free(struct i2o_controller *c)
+{
+	struct device *dev;
+
+	dev = &c->pdev->dev;
+
+	i2o_dma_free(dev, &c->out_queue);
+	i2o_dma_free(dev, &c->status_block);
+	if (c->lct)
+		kfree(c->lct);
+	i2o_dma_free(dev, &c->dlct);
+	i2o_dma_free(dev, &c->hrt);
+	i2o_dma_free(dev, &c->status);
+
+#ifdef CONFIG_MTRR
+	if (c->mtrr_reg0 >= 0)
+		mtrr_del(c->mtrr_reg0, 0, 0);
+	if (c->mtrr_reg1 >= 0)
+		mtrr_del(c->mtrr_reg1, 0, 0);
+#endif
+
+	if (c->raptor && c->in_queue.virt)
+		iounmap(c->in_queue.virt);
+
+	if (c->base.virt)
+		iounmap(c->base.virt);
+}
+
+/**
+ *	i2o_pci_alloc - Allocate DMA memory, map IO memory for I2O controller
+ *	@c: I2O controller
+ *
+ *	Allocate DMA memory for a PCI (or in theory AGP) I2O controller. All
+ *	IO mappings are also done here. If MTRR is enabled, also do add memory
+ *	regions here.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __devinit i2o_pci_alloc(struct i2o_controller *c)
+{
+	struct pci_dev *pdev = c->pdev;
+	struct device *dev = &pdev->dev;
+	int i;
+
+	for (i = 0; i < 6; i++) {
+		/* Skip I/O spaces */
+		if (!(pci_resource_flags(pdev, i) & IORESOURCE_IO)) {
+			if (!c->base.phys) {
+				c->base.phys = pci_resource_start(pdev, i);
+				c->base.len = pci_resource_len(pdev, i);
+
+				/*
+				 * If we know what card it is, set the size
+				 * correctly. Code is taken from dpt_i2o.c
+				 */
+				if (pdev->device == 0xa501) {
+					if (pdev->subsystem_device >= 0xc032 &&
+					    pdev->subsystem_device <= 0xc03b) {
+						if (c->base.len > 0x400000)
+							c->base.len = 0x400000;
+					} else {
+						if (c->base.len > 0x100000)
+							c->base.len = 0x100000;
+					}
+				}
+				if (!c->raptor)
+					break;
+			} else {
+				c->in_queue.phys = pci_resource_start(pdev, i);
+				c->in_queue.len = pci_resource_len(pdev, i);
+				break;
+			}
+		}
+	}
+
+	if (i == 6) {
+		printk(KERN_ERR "%s: I2O controller has no memory regions"
+		       " defined.\n", c->name);
+		i2o_pci_free(c);
+		return -EINVAL;
+	}
+
+	/* Map the I2O controller */
+	if (c->raptor) {
+		printk(KERN_INFO "%s: PCI I2O controller\n", c->name);
+		printk(KERN_INFO "     BAR0 at 0x%08lX size=%ld\n",
+		       (unsigned long)c->base.phys, (unsigned long)c->base.len);
+		printk(KERN_INFO "     BAR1 at 0x%08lX size=%ld\n",
+		       (unsigned long)c->in_queue.phys,
+		       (unsigned long)c->in_queue.len);
+	} else
+		printk(KERN_INFO "%s: PCI I2O controller at %08lX size=%ld\n",
+		       c->name, (unsigned long)c->base.phys,
+		       (unsigned long)c->base.len);
+
+	c->base.virt = ioremap(c->base.phys, c->base.len);
+	if (!c->base.virt) {
+		printk(KERN_ERR "%s: Unable to map controller.\n", c->name);
+		return -ENOMEM;
+	}
+
+	if (c->raptor) {
+		c->in_queue.virt = ioremap(c->in_queue.phys, c->in_queue.len);
+		if (!c->in_queue.virt) {
+			printk(KERN_ERR "%s: Unable to map controller.\n",
+			       c->name);
+			i2o_pci_free(c);
+			return -ENOMEM;
+		}
+	} else
+		c->in_queue = c->base;
+
+	c->irq_mask = c->base.virt + 0x34;
+	c->post_port = c->base.virt + 0x40;
+	c->reply_port = c->base.virt + 0x44;
+
+#ifdef CONFIG_MTRR
+	/* Enable Write Combining MTRR for IOP's memory region */
+	c->mtrr_reg0 = mtrr_add(c->in_queue.phys, c->in_queue.len,
+				MTRR_TYPE_WRCOMB, 1);
+	c->mtrr_reg1 = -1;
+
+	if (c->mtrr_reg0 < 0)
+		printk(KERN_WARNING "%s: could not enable write combining "
+		       "MTRR\n", c->name);
+	else
+		printk(KERN_INFO "%s: using write combining MTRR\n", c->name);
+
+	/*
+	 * If it is an INTEL i960 I/O processor then set the first 64K to
+	 * Uncacheable since the region contains the messaging unit which
+	 * shouldn't be cached.
+	 */
+	if ((pdev->vendor == PCI_VENDOR_ID_INTEL ||
+	     pdev->vendor == PCI_VENDOR_ID_DPT) && !c->raptor) {
+		printk(KERN_INFO "%s: MTRR workaround for Intel i960 processor"
+		       "\n", c->name);
+		c->mtrr_reg1 = mtrr_add(c->base.phys, 0x10000,
+					MTRR_TYPE_UNCACHABLE, 1);
+
+		if (c->mtrr_reg1 < 0) {
+			printk(KERN_WARNING "%s: Error in setting "
+			       "MTRR_TYPE_UNCACHABLE\n", c->name);
+			mtrr_del(c->mtrr_reg0, c->in_queue.phys,
+				 c->in_queue.len);
+			c->mtrr_reg0 = -1;
+		}
+	}
+#endif
+
+	if (i2o_dma_alloc(dev, &c->status, 8, GFP_KERNEL)) {
+		i2o_pci_free(c);
+		return -ENOMEM;
+	}
+
+	if (i2o_dma_alloc(dev, &c->hrt, sizeof(i2o_hrt), GFP_KERNEL)) {
+		i2o_pci_free(c);
+		return -ENOMEM;
+	}
+
+	if (i2o_dma_alloc(dev, &c->dlct, 8192, GFP_KERNEL)) {
+		i2o_pci_free(c);
+		return -ENOMEM;
+	}
+
+	if (i2o_dma_alloc(dev, &c->status_block, sizeof(i2o_status_block),
+			  GFP_KERNEL)) {
+		i2o_pci_free(c);
+		return -ENOMEM;
+	}
+
+	if (i2o_dma_alloc(dev, &c->out_queue, MSG_POOL_SIZE, GFP_KERNEL)) {
+		i2o_pci_free(c);
+		return -ENOMEM;
+	}
+
+	pci_set_drvdata(pdev, c);
+
+	return 0;
+}
+
+/**
+ *	i2o_pci_interrupt - Interrupt handler for I2O controller
+ *	@irq: interrupt line
+ *	@dev_id: pointer to the I2O controller
+ *	@r: pointer to registers
+ *
+ *	Handle an interrupt from a PCI based I2O controller. This turns out
+ *	to be rather simple. We keep the controller pointer in the cookie.
+ */
+static irqreturn_t i2o_pci_interrupt(int irq, void *dev_id, struct pt_regs *r)
+{
+	struct i2o_controller *c = dev_id;
+	struct device *dev = &c->pdev->dev;
+	struct i2o_message *m;
+	u32 mv;
+
+	/*
+	 * Old 960 steppings had a bug in the I2O unit that caused
+	 * the queue to appear empty when it wasn't.
+	 */
+	mv = I2O_REPLY_READ32(c);
+	if (mv == I2O_QUEUE_EMPTY) {
+		mv = I2O_REPLY_READ32(c);
+		if (unlikely(mv == I2O_QUEUE_EMPTY)) {
+			return IRQ_NONE;
+		} else
+			pr_debug("%s: 960 bug detected\n", c->name);
+	}
+
+	while (mv != I2O_QUEUE_EMPTY) {
+		/*
+		 * Map the message from the page frame map to kernel virtual.
+		 * Because bus_to_virt is deprecated, we have calculate the
+		 * location by ourself!
+		 */
+		m = i2o_msg_out_to_virt(c, mv);
+
+		/*
+		 *      Ensure this message is seen coherently but cachably by
+		 *      the processor
+		 */
+		dma_sync_single_for_cpu(dev, mv, MSG_FRAME_SIZE * 4,
+					PCI_DMA_FROMDEVICE);
+
+		/* dispatch it */
+		if (i2o_driver_dispatch(c, mv, m))
+			/* flush it if result != 0 */
+			i2o_flush_reply(c, mv);
+
+		/*
+		 * That 960 bug again...
+		 */
+		mv = I2O_REPLY_READ32(c);
+		if (mv == I2O_QUEUE_EMPTY)
+			mv = I2O_REPLY_READ32(c);
+	}
+	return IRQ_HANDLED;
+}
+
+/**
+ *	i2o_pci_irq_enable - Allocate interrupt for I2O controller
+ *
+ *	Allocate an interrupt for the I2O controller, and activate interrupts
+ *	on the I2O controller.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int i2o_pci_irq_enable(struct i2o_controller *c)
+{
+	struct pci_dev *pdev = c->pdev;
+	int rc;
+
+	I2O_IRQ_WRITE32(c, 0xffffffff);
+
+	if (pdev->irq) {
+		rc = request_irq(pdev->irq, i2o_pci_interrupt, SA_SHIRQ,
+				 c->name, c);
+		if (rc < 0) {
+			printk(KERN_ERR "%s: unable to allocate interrupt %d."
+			       "\n", c->name, pdev->irq);
+			return rc;
+		}
+	}
+
+	I2O_IRQ_WRITE32(c, 0x00000000);
+
+	printk(KERN_INFO "%s: Installed at IRQ %d\n", c->name, pdev->irq);
+
+	return 0;
+}
+
+/**
+ *	i2o_pci_irq_disable - Free interrupt for I2O controller
+ *	@c: I2O controller
+ *
+ *	Disable interrupts in I2O controller and then free interrupt.
+ */
+static void i2o_pci_irq_disable(struct i2o_controller *c)
+{
+	I2O_IRQ_WRITE32(c, 0xffffffff);
+
+	if (c->pdev->irq > 0)
+		free_irq(c->pdev->irq, c);
+}
+
+/**
+ *	i2o_pci_probe - Probe the PCI device for an I2O controller
+ *	@dev: PCI device to test
+ *	@id: id which matched with the PCI device id table
+ *
+ *	Probe the PCI device for any device which is a memory of the
+ *	Intelligent, I2O class or an Adaptec Zero Channel Controller. We
+ *	attempt to set up each such device and register it with the core.
+ *
+ *	Returns 0 on success or negative error code on failure.
+ */
+static int __devinit i2o_pci_probe(struct pci_dev *pdev,
+				   const struct pci_device_id *id)
+{
+	struct i2o_controller *c;
+	int rc;
+
+	printk(KERN_INFO "i2o: Checking for PCI I2O controllers...\n");
+
+	if ((pdev->class & 0xff) > 1) {
+		printk(KERN_WARNING "i2o: I2O controller found but does not "
+		       "support I2O 1.5 (skipping).\n");
+		return -ENODEV;
+	}
+
+	if ((rc = pci_enable_device(pdev))) {
+		printk(KERN_WARNING "i2o: I2O controller found but could not be"
+		       " enabled.\n");
+		return rc;
+	}
+
+	printk(KERN_INFO "i2o: I2O controller found on bus %d at %d.\n",
+	       pdev->bus->number, pdev->devfn);
+
+	if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
+		printk(KERN_WARNING "i2o: I2O controller on bus %d at %d: No "
+		       "suitable DMA available!\n", pdev->bus->number,
+		       pdev->devfn);
+		rc = -ENODEV;
+		goto disable;
+	}
+
+	pci_set_master(pdev);
+
+	c = i2o_iop_alloc();
+	if (IS_ERR(c)) {
+		printk(KERN_ERR "i2o: memory for I2O controller could not be "
+		       "allocated\n");
+		rc = PTR_ERR(c);
+		goto disable;
+	}
+
+	c->pdev = pdev;
+	c->device = pdev->dev;
+
+	/* Cards that fall apart if you hit them with large I/O loads... */
+	if (pdev->vendor == PCI_VENDOR_ID_NCR && pdev->device == 0x0630) {
+		c->short_req = 1;
+		printk(KERN_INFO "%s: Symbios FC920 workarounds activated.\n",
+		       c->name);
+	}
+
+	if (pdev->subsystem_vendor == PCI_VENDOR_ID_PROMISE) {
+		c->promise = 1;
+		printk(KERN_INFO "%s: Promise workarounds activated.\n",
+		       c->name);
+	}
+
+	/* Cards that go bananas if you quiesce them before you reset them. */
+	if (pdev->vendor == PCI_VENDOR_ID_DPT) {
+		c->no_quiesce = 1;
+		if (pdev->device == 0xa511)
+			c->raptor = 1;
+	}
+
+	if ((rc = i2o_pci_alloc(c))) {
+		printk(KERN_ERR "%s: DMA / IO allocation for I2O controller "
+		       " failed\n", c->name);
+		goto free_controller;
+	}
+
+	if (i2o_pci_irq_enable(c)) {
+		printk(KERN_ERR "%s: unable to enable interrupts for I2O "
+		       "controller\n", c->name);
+		goto free_pci;
+	}
+
+	if ((rc = i2o_iop_add(c)))
+		goto uninstall;
+
+	return 0;
+
+      uninstall:
+	i2o_pci_irq_disable(c);
+
+      free_pci:
+	i2o_pci_free(c);
+
+      free_controller:
+	i2o_iop_free(c);
+
+      disable:
+	pci_disable_device(pdev);
+
+	return rc;
+}
+
+/**
+ *	i2o_pci_remove - Removes a I2O controller from the system
+ *	pdev: I2O controller which should be removed
+ *
+ *	Reset the I2O controller, disable interrupts and remove all allocated
+ *	resources.
+ */
+static void __devexit i2o_pci_remove(struct pci_dev *pdev)
+{
+	struct i2o_controller *c;
+	c = pci_get_drvdata(pdev);
+
+	i2o_iop_remove(c);
+	i2o_pci_irq_disable(c);
+	i2o_pci_free(c);
+
+	printk(KERN_INFO "%s: Controller removed.\n", c->name);
+
+	i2o_iop_free(c);
+	pci_disable_device(pdev);
+};
+
+/* PCI driver for I2O controller */
+static struct pci_driver i2o_pci_driver = {
+	.name = "I2O controller",
+	.id_table = i2o_pci_ids,
+	.probe = i2o_pci_probe,
+	.remove = __devexit_p(i2o_pci_remove),
+};
+
+/**
+ *	i2o_pci_init - registers I2O PCI driver in PCI subsystem
+ *
+ *	Returns > 0 on success or negative error code on failure.
+ */
+int __init i2o_pci_init(void)
+{
+	return pci_register_driver(&i2o_pci_driver);
+};
+
+/**
+ *	i2o_pci_exit - unregisters I2O PCI driver from PCI subsystem
+ */
+void __exit i2o_pci_exit(void)
+{
+	pci_unregister_driver(&i2o_pci_driver);
+};
+
+EXPORT_SYMBOL(i2o_dma_realloc);
+MODULE_DEVICE_TABLE(pci, i2o_pci_ids);