These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

1 files changed, 0 insertions, 3077 deletions

diff --git a/kernel/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/kernel/drivers/scsi/mpt2sas/mpt2sas_ctl.c
deleted file mode 100644
index 4e509604b..000000000
--- a/kernel/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ /dev/null
@@ -1,3077 +0,0 @@
-/*
- * Management Module Support for MPT (Message Passing Technology) based
- * controllers
- *
- * This code is based on drivers/scsi/mpt2sas/mpt2_ctl.c
- * Copyright (C) 2007-2014  LSI Corporation
- * Copyright (C) 20013-2014 Avago Technologies
- *  (mailto: MPT-FusionLinux.pdl@avagotech.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * NO WARRANTY
- * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
- * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
- * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
- * solely responsible for determining the appropriateness of using and
- * distributing the Program and assumes all risks associated with its
- * exercise of rights under this Agreement, including but not limited to
- * the risks and costs of program errors, damage to or loss of data,
- * programs or equipment, and unavailability or interruption of operations.
-
- * DISCLAIMER OF LIABILITY
- * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
- * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
-
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
- * USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-#include <linux/compat.h>
-#include <linux/poll.h>
-
-#include <linux/io.h>
-#include <linux/uaccess.h>
-
-#include "mpt2sas_base.h"
-#include "mpt2sas_ctl.h"
-
-static DEFINE_MUTEX(_ctl_mutex);
-static struct fasync_struct *async_queue;
-static DECLARE_WAIT_QUEUE_HEAD(ctl_poll_wait);
-
-static int _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type,
-    u8 *issue_reset);
-
-/**
- * enum block_state - blocking state
- * @NON_BLOCKING: non blocking
- * @BLOCKING: blocking
- *
- * These states are for ioctls that need to wait for a response
- * from firmware, so they probably require sleep.
- */
-enum block_state {
-	NON_BLOCKING,
-	BLOCKING,
-};
-
-#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
-/**
- * _ctl_sas_device_find_by_handle - sas device search
- * @ioc: per adapter object
- * @handle: sas device handle (assigned by firmware)
- * Context: Calling function should acquire ioc->sas_device_lock
- *
- * This searches for sas_device based on sas_address, then return sas_device
- * object.
- */
-static struct _sas_device *
-_ctl_sas_device_find_by_handle(struct MPT2SAS_ADAPTER *ioc, u16 handle)
-{
-	struct _sas_device *sas_device, *r;
-
-	r = NULL;
-	list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
-		if (sas_device->handle != handle)
-			continue;
-		r = sas_device;
-		goto out;
-	}
-
- out:
-	return r;
-}
-
-/**
- * _ctl_display_some_debug - debug routine
- * @ioc: per adapter object
- * @smid: system request message index
- * @calling_function_name: string pass from calling function
- * @mpi_reply: reply message frame
- * Context: none.
- *
- * Function for displaying debug info helpful when debugging issues
- * in this module.
- */
-static void
-_ctl_display_some_debug(struct MPT2SAS_ADAPTER *ioc, u16 smid,
-    char *calling_function_name, MPI2DefaultReply_t *mpi_reply)
-{
-	Mpi2ConfigRequest_t *mpi_request;
-	char *desc = NULL;
-
-	if (!(ioc->logging_level & MPT_DEBUG_IOCTL))
-		return;
-
-	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
-	switch (mpi_request->Function) {
-	case MPI2_FUNCTION_SCSI_IO_REQUEST:
-	{
-		Mpi2SCSIIORequest_t *scsi_request =
-		    (Mpi2SCSIIORequest_t *)mpi_request;
-
-		snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
-		    "scsi_io, cmd(0x%02x), cdb_len(%d)",
-		    scsi_request->CDB.CDB32[0],
-		    le16_to_cpu(scsi_request->IoFlags) & 0xF);
-		desc = ioc->tmp_string;
-		break;
-	}
-	case MPI2_FUNCTION_SCSI_TASK_MGMT:
-		desc = "task_mgmt";
-		break;
-	case MPI2_FUNCTION_IOC_INIT:
-		desc = "ioc_init";
-		break;
-	case MPI2_FUNCTION_IOC_FACTS:
-		desc = "ioc_facts";
-		break;
-	case MPI2_FUNCTION_CONFIG:
-	{
-		Mpi2ConfigRequest_t *config_request =
-		    (Mpi2ConfigRequest_t *)mpi_request;
-
-		snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
-		    "config, type(0x%02x), ext_type(0x%02x), number(%d)",
-		    (config_request->Header.PageType &
-		     MPI2_CONFIG_PAGETYPE_MASK), config_request->ExtPageType,
-		    config_request->Header.PageNumber);
-		desc = ioc->tmp_string;
-		break;
-	}
-	case MPI2_FUNCTION_PORT_FACTS:
-		desc = "port_facts";
-		break;
-	case MPI2_FUNCTION_PORT_ENABLE:
-		desc = "port_enable";
-		break;
-	case MPI2_FUNCTION_EVENT_NOTIFICATION:
-		desc = "event_notification";
-		break;
-	case MPI2_FUNCTION_FW_DOWNLOAD:
-		desc = "fw_download";
-		break;
-	case MPI2_FUNCTION_FW_UPLOAD:
-		desc = "fw_upload";
-		break;
-	case MPI2_FUNCTION_RAID_ACTION:
-		desc = "raid_action";
-		break;
-	case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
-	{
-		Mpi2SCSIIORequest_t *scsi_request =
-		    (Mpi2SCSIIORequest_t *)mpi_request;
-
-		snprintf(ioc->tmp_string, MPT_STRING_LENGTH,
-		    "raid_pass, cmd(0x%02x), cdb_len(%d)",
-		    scsi_request->CDB.CDB32[0],
-		    le16_to_cpu(scsi_request->IoFlags) & 0xF);
-		desc = ioc->tmp_string;
-		break;
-	}
-	case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
-		desc = "sas_iounit_cntl";
-		break;
-	case MPI2_FUNCTION_SATA_PASSTHROUGH:
-		desc = "sata_pass";
-		break;
-	case MPI2_FUNCTION_DIAG_BUFFER_POST:
-		desc = "diag_buffer_post";
-		break;
-	case MPI2_FUNCTION_DIAG_RELEASE:
-		desc = "diag_release";
-		break;
-	case MPI2_FUNCTION_SMP_PASSTHROUGH:
-		desc = "smp_passthrough";
-		break;
-	}
-
-	if (!desc)
-		return;
-
-	printk(MPT2SAS_INFO_FMT "%s: %s, smid(%d)\n",
-	    ioc->name, calling_function_name, desc, smid);
-
-	if (!mpi_reply)
-		return;
-
-	if (mpi_reply->IOCStatus || mpi_reply->IOCLogInfo)
-		printk(MPT2SAS_INFO_FMT
-		    "\tiocstatus(0x%04x), loginfo(0x%08x)\n",
-		    ioc->name, le16_to_cpu(mpi_reply->IOCStatus),
-		    le32_to_cpu(mpi_reply->IOCLogInfo));
-
-	if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
-	    mpi_request->Function ==
-	    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
-		Mpi2SCSIIOReply_t *scsi_reply =
-		    (Mpi2SCSIIOReply_t *)mpi_reply;
-		struct _sas_device *sas_device = NULL;
-		unsigned long flags;
-
-		spin_lock_irqsave(&ioc->sas_device_lock, flags);
-		sas_device = _ctl_sas_device_find_by_handle(ioc,
-		    le16_to_cpu(scsi_reply->DevHandle));
-		if (sas_device) {
-			printk(MPT2SAS_WARN_FMT "\tsas_address(0x%016llx), "
-			    "phy(%d)\n", ioc->name, (unsigned long long)
-			    sas_device->sas_address, sas_device->phy);
-			printk(MPT2SAS_WARN_FMT
-			    "\tenclosure_logical_id(0x%016llx), slot(%d)\n",
-			    ioc->name, sas_device->enclosure_logical_id,
-			    sas_device->slot);
-		}
-		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
-		if (scsi_reply->SCSIState || scsi_reply->SCSIStatus)
-			printk(MPT2SAS_INFO_FMT
-			    "\tscsi_state(0x%02x), scsi_status"
-			    "(0x%02x)\n", ioc->name,
-			    scsi_reply->SCSIState,
-			    scsi_reply->SCSIStatus);
-	}
-}
-#endif
-
-/**
- * mpt2sas_ctl_done - ctl module completion routine
- * @ioc: per adapter object
- * @smid: system request message index
- * @msix_index: MSIX table index supplied by the OS
- * @reply: reply message frame(lower 32bit addr)
- * Context: none.
- *
- * The callback handler when using ioc->ctl_cb_idx.
- *
- * Return 1 meaning mf should be freed from _base_interrupt
- *        0 means the mf is freed from this function.
- */
-u8
-mpt2sas_ctl_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
-	u32 reply)
-{
-	MPI2DefaultReply_t *mpi_reply;
-	Mpi2SCSIIOReply_t *scsiio_reply;
-	const void *sense_data;
-	u32 sz;
-
-	if (ioc->ctl_cmds.status == MPT2_CMD_NOT_USED)
-		return 1;
-	if (ioc->ctl_cmds.smid != smid)
-		return 1;
-	ioc->ctl_cmds.status |= MPT2_CMD_COMPLETE;
-	mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
-	if (mpi_reply) {
-		memcpy(ioc->ctl_cmds.reply, mpi_reply, mpi_reply->MsgLength*4);
-		ioc->ctl_cmds.status |= MPT2_CMD_REPLY_VALID;
-		/* get sense data */
-		if (mpi_reply->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
-		    mpi_reply->Function ==
-		    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
-			scsiio_reply = (Mpi2SCSIIOReply_t *)mpi_reply;
-			if (scsiio_reply->SCSIState &
-			    MPI2_SCSI_STATE_AUTOSENSE_VALID) {
-				sz = min_t(u32, SCSI_SENSE_BUFFERSIZE,
-				    le32_to_cpu(scsiio_reply->SenseCount));
-				sense_data = mpt2sas_base_get_sense_buffer(ioc,
-				    smid);
-				memcpy(ioc->ctl_cmds.sense, sense_data, sz);
-			}
-		}
-	}
-#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
-	_ctl_display_some_debug(ioc, smid, "ctl_done", mpi_reply);
-#endif
-	ioc->ctl_cmds.status &= ~MPT2_CMD_PENDING;
-	complete(&ioc->ctl_cmds.done);
-	return 1;
-}
-
-/**
- * _ctl_check_event_type - determines when an event needs logging
- * @ioc: per adapter object
- * @event: firmware event
- *
- * The bitmask in ioc->event_type[] indicates which events should be
- * be saved in the driver event_log.  This bitmask is set by application.
- *
- * Returns 1 when event should be captured, or zero means no match.
- */
-static int
-_ctl_check_event_type(struct MPT2SAS_ADAPTER *ioc, u16 event)
-{
-	u16 i;
-	u32 desired_event;
-
-	if (event >= 128 || !event || !ioc->event_log)
-		return 0;
-
-	desired_event = (1 << (event % 32));
-	if (!desired_event)
-		desired_event = 1;
-	i = event / 32;
-	return desired_event & ioc->event_type[i];
-}
-
-/**
- * mpt2sas_ctl_add_to_event_log - add event
- * @ioc: per adapter object
- * @mpi_reply: reply message frame
- *
- * Return nothing.
- */
-void
-mpt2sas_ctl_add_to_event_log(struct MPT2SAS_ADAPTER *ioc,
-    Mpi2EventNotificationReply_t *mpi_reply)
-{
-	struct MPT2_IOCTL_EVENTS *event_log;
-	u16 event;
-	int i;
-	u32 sz, event_data_sz;
-	u8 send_aen = 0;
-
-	if (!ioc->event_log)
-		return;
-
-	event = le16_to_cpu(mpi_reply->Event);
-
-	if (_ctl_check_event_type(ioc, event)) {
-
-		/* insert entry into circular event_log */
-		i = ioc->event_context % MPT2SAS_CTL_EVENT_LOG_SIZE;
-		event_log = ioc->event_log;
-		event_log[i].event = event;
-		event_log[i].context = ioc->event_context++;
-
-		event_data_sz = le16_to_cpu(mpi_reply->EventDataLength)*4;
-		sz = min_t(u32, event_data_sz, MPT2_EVENT_DATA_SIZE);
-		memset(event_log[i].data, 0, MPT2_EVENT_DATA_SIZE);
-		memcpy(event_log[i].data, mpi_reply->EventData, sz);
-		send_aen = 1;
-	}
-
-	/* This aen_event_read_flag flag is set until the
-	 * application has read the event log.
-	 * For MPI2_EVENT_LOG_ENTRY_ADDED, we always notify.
-	 */
-	if (event == MPI2_EVENT_LOG_ENTRY_ADDED ||
-	    (send_aen && !ioc->aen_event_read_flag)) {
-		ioc->aen_event_read_flag = 1;
-		wake_up_interruptible(&ctl_poll_wait);
-		if (async_queue)
-			kill_fasync(&async_queue, SIGIO, POLL_IN);
-	}
-}
-
-/**
- * mpt2sas_ctl_event_callback - firmware event handler (called at ISR time)
- * @ioc: per adapter object
- * @msix_index: MSIX table index supplied by the OS
- * @reply: reply message frame(lower 32bit addr)
- * Context: interrupt.
- *
- * This function merely adds a new work task into ioc->firmware_event_thread.
- * The tasks are worked from _firmware_event_work in user context.
- *
- * Returns void.
- */
-void
-mpt2sas_ctl_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index,
-	u32 reply)
-{
-	Mpi2EventNotificationReply_t *mpi_reply;
-
-	mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply);
-	if (unlikely(!mpi_reply)) {
-		printk(MPT2SAS_ERR_FMT "mpi_reply not valid at %s:%d/%s()!\n",
-		    ioc->name, __FILE__, __LINE__, __func__);
-		return;
-	}
-	mpt2sas_ctl_add_to_event_log(ioc, mpi_reply);
-	return;
-}
-
-/**
- * _ctl_verify_adapter - validates ioc_number passed from application
- * @ioc: per adapter object
- * @iocpp: The ioc pointer is returned in this.
- *
- * Return (-1) means error, else ioc_number.
- */
-static int
-_ctl_verify_adapter(int ioc_number, struct MPT2SAS_ADAPTER **iocpp)
-{
-	struct MPT2SAS_ADAPTER *ioc;
-
-	list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
-		if (ioc->id != ioc_number)
-			continue;
-		*iocpp = ioc;
-		return ioc_number;
-	}
-	*iocpp = NULL;
-	return -1;
-}
-
-/**
- * mpt2sas_ctl_reset_handler - reset callback handler (for ctl)
- * @ioc: per adapter object
- * @reset_phase: phase
- *
- * The handler for doing any required cleanup or initialization.
- *
- * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET,
- * MPT2_IOC_DONE_RESET
- */
-void
-mpt2sas_ctl_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase)
-{
-	int i;
-	u8 issue_reset;
-
-	switch (reset_phase) {
-	case MPT2_IOC_PRE_RESET:
-		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-		    "MPT2_IOC_PRE_RESET\n", ioc->name, __func__));
-		for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
-			if (!(ioc->diag_buffer_status[i] &
-			    MPT2_DIAG_BUFFER_IS_REGISTERED))
-				continue;
-			if ((ioc->diag_buffer_status[i] &
-			    MPT2_DIAG_BUFFER_IS_RELEASED))
-				continue;
-			_ctl_send_release(ioc, i, &issue_reset);
-		}
-		break;
-	case MPT2_IOC_AFTER_RESET:
-		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-		    "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__));
-		if (ioc->ctl_cmds.status & MPT2_CMD_PENDING) {
-			ioc->ctl_cmds.status |= MPT2_CMD_RESET;
-			mpt2sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
-			complete(&ioc->ctl_cmds.done);
-		}
-		break;
-	case MPT2_IOC_DONE_RESET:
-		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-		    "MPT2_IOC_DONE_RESET\n", ioc->name, __func__));
-
-		for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
-			if (!(ioc->diag_buffer_status[i] &
-			    MPT2_DIAG_BUFFER_IS_REGISTERED))
-				continue;
-			if ((ioc->diag_buffer_status[i] &
-			    MPT2_DIAG_BUFFER_IS_RELEASED))
-				continue;
-			ioc->diag_buffer_status[i] |=
-			    MPT2_DIAG_BUFFER_IS_DIAG_RESET;
-		}
-		break;
-	}
-}
-
-/**
- * _ctl_fasync -
- * @fd -
- * @filep -
- * @mode -
- *
- * Called when application request fasyn callback handler.
- */
-static int
-_ctl_fasync(int fd, struct file *filep, int mode)
-{
-	return fasync_helper(fd, filep, mode, &async_queue);
-}
-
-/**
- * _ctl_poll -
- * @file -
- * @wait -
- *
- */
-static unsigned int
-_ctl_poll(struct file *filep, poll_table *wait)
-{
-	struct MPT2SAS_ADAPTER *ioc;
-
-	poll_wait(filep, &ctl_poll_wait, wait);
-
-	list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
-		if (ioc->aen_event_read_flag)
-			return POLLIN | POLLRDNORM;
-	}
-	return 0;
-}
-
-/**
- * _ctl_set_task_mid - assign an active smid to tm request
- * @ioc: per adapter object
- * @karg - (struct mpt2_ioctl_command)
- * @tm_request - pointer to mf from user space
- *
- * Returns 0 when an smid if found, else fail.
- * during failure, the reply frame is filled.
- */
-static int
-_ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
-    Mpi2SCSITaskManagementRequest_t *tm_request)
-{
-	u8 found = 0;
-	u16 i;
-	u16 handle;
-	struct scsi_cmnd *scmd;
-	struct MPT2SAS_DEVICE *priv_data;
-	unsigned long flags;
-	Mpi2SCSITaskManagementReply_t *tm_reply;
-	u32 sz;
-	u32 lun;
-	char *desc = NULL;
-
-	if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
-		desc = "abort_task";
-	else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
-		desc = "query_task";
-	else
-		return 0;
-
-	lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
-
-	handle = le16_to_cpu(tm_request->DevHandle);
-	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
-	for (i = ioc->scsiio_depth; i && !found; i--) {
-		scmd = ioc->scsi_lookup[i - 1].scmd;
-		if (scmd == NULL || scmd->device == NULL ||
-		    scmd->device->hostdata == NULL)
-			continue;
-		if (lun != scmd->device->lun)
-			continue;
-		priv_data = scmd->device->hostdata;
-		if (priv_data->sas_target == NULL)
-			continue;
-		if (priv_data->sas_target->handle != handle)
-			continue;
-		tm_request->TaskMID = cpu_to_le16(ioc->scsi_lookup[i - 1].smid);
-		found = 1;
-	}
-	spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-
-	if (!found) {
-		dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-		    "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name,
-		    desc, le16_to_cpu(tm_request->DevHandle), lun));
-		tm_reply = ioc->ctl_cmds.reply;
-		tm_reply->DevHandle = tm_request->DevHandle;
-		tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
-		tm_reply->TaskType = tm_request->TaskType;
-		tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
-		tm_reply->VP_ID = tm_request->VP_ID;
-		tm_reply->VF_ID = tm_request->VF_ID;
-		sz = min_t(u32, karg->max_reply_bytes, ioc->reply_sz);
-		if (copy_to_user(karg->reply_frame_buf_ptr, ioc->ctl_cmds.reply,
-		    sz))
-			printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
-			    __LINE__, __func__);
-		return 1;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-	    "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
-	    desc, le16_to_cpu(tm_request->DevHandle), lun,
-	     le16_to_cpu(tm_request->TaskMID)));
-	return 0;
-}
-
-/**
- * _ctl_do_mpt_command - main handler for MPT2COMMAND opcode
- * @ioc: per adapter object
- * @karg - (struct mpt2_ioctl_command)
- * @mf - pointer to mf in user space
- */
-static long
-_ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command karg,
-	void __user *mf)
-{
-	MPI2RequestHeader_t *mpi_request = NULL, *request;
-	MPI2DefaultReply_t *mpi_reply;
-	u32 ioc_state;
-	u16 ioc_status;
-	u16 smid;
-	unsigned long timeout, timeleft;
-	u8 issue_reset;
-	u32 sz;
-	void *psge;
-	void *data_out = NULL;
-	dma_addr_t data_out_dma;
-	size_t data_out_sz = 0;
-	void *data_in = NULL;
-	dma_addr_t data_in_dma;
-	size_t data_in_sz = 0;
-	u32 sgl_flags;
-	long ret;
-	u16 wait_state_count;
-
-	issue_reset = 0;
-
-	if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
-		printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
-		    ioc->name, __func__);
-		ret = -EAGAIN;
-		goto out;
-	}
-
-	wait_state_count = 0;
-	ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
-	while (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
-		if (wait_state_count++ == 10) {
-			printk(MPT2SAS_ERR_FMT
-			    "%s: failed due to ioc not operational\n",
-			    ioc->name, __func__);
-			ret = -EFAULT;
-			goto out;
-		}
-		ssleep(1);
-		ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
-		printk(MPT2SAS_INFO_FMT "%s: waiting for "
-		    "operational state(count=%d)\n", ioc->name,
-		    __func__, wait_state_count);
-	}
-	if (wait_state_count)
-		printk(MPT2SAS_INFO_FMT "%s: ioc is operational\n",
-		    ioc->name, __func__);
-
-	mpi_request = kzalloc(ioc->request_sz, GFP_KERNEL);
-	if (!mpi_request) {
-		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a memory for "
-		    "mpi_request\n", ioc->name, __func__);
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	/* Check for overflow and wraparound */
-	if (karg.data_sge_offset * 4 > ioc->request_sz ||
-	    karg.data_sge_offset > (UINT_MAX / 4)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	/* copy in request message frame from user */
-	if (copy_from_user(mpi_request, mf, karg.data_sge_offset*4)) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__, __LINE__,
-		    __func__);
-		ret = -EFAULT;
-		goto out;
-	}
-
-	if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
-		smid = mpt2sas_base_get_smid_hpr(ioc, ioc->ctl_cb_idx);
-		if (!smid) {
-			printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
-			    ioc->name, __func__);
-			ret = -EAGAIN;
-			goto out;
-		}
-	} else {
-
-		smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->ctl_cb_idx, NULL);
-		if (!smid) {
-			printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
-			    ioc->name, __func__);
-			ret = -EAGAIN;
-			goto out;
-		}
-	}
-
-	ret = 0;
-	ioc->ctl_cmds.status = MPT2_CMD_PENDING;
-	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
-	request = mpt2sas_base_get_msg_frame(ioc, smid);
-	memcpy(request, mpi_request, karg.data_sge_offset*4);
-	ioc->ctl_cmds.smid = smid;
-	data_out_sz = karg.data_out_size;
-	data_in_sz = karg.data_in_size;
-
-	if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
-	    mpi_request->Function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH) {
-		if (!le16_to_cpu(mpi_request->FunctionDependent1) ||
-		    le16_to_cpu(mpi_request->FunctionDependent1) >
-		    ioc->facts.MaxDevHandle) {
-			ret = -EINVAL;
-			mpt2sas_base_free_smid(ioc, smid);
-			goto out;
-		}
-	}
-
-	/* obtain dma-able memory for data transfer */
-	if (data_out_sz) /* WRITE */ {
-		data_out = pci_alloc_consistent(ioc->pdev, data_out_sz,
-		    &data_out_dma);
-		if (!data_out) {
-			printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
-			    __LINE__, __func__);
-			ret = -ENOMEM;
-			mpt2sas_base_free_smid(ioc, smid);
-			goto out;
-		}
-		if (copy_from_user(data_out, karg.data_out_buf_ptr,
-			data_out_sz)) {
-			printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
-			    __LINE__, __func__);
-			ret =  -EFAULT;
-			mpt2sas_base_free_smid(ioc, smid);
-			goto out;
-		}
-	}
-
-	if (data_in_sz) /* READ */ {
-		data_in = pci_alloc_consistent(ioc->pdev, data_in_sz,
-		    &data_in_dma);
-		if (!data_in) {
-			printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
-			    __LINE__, __func__);
-			ret = -ENOMEM;
-			mpt2sas_base_free_smid(ioc, smid);
-			goto out;
-		}
-	}
-
-	/* add scatter gather elements */
-	psge = (void *)request + (karg.data_sge_offset*4);
-
-	if (!data_out_sz && !data_in_sz) {
-		mpt2sas_base_build_zero_len_sge(ioc, psge);
-	} else if (data_out_sz && data_in_sz) {
-		/* WRITE sgel first */
-		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
-		    MPI2_SGE_FLAGS_END_OF_BUFFER | MPI2_SGE_FLAGS_HOST_TO_IOC);
-		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
-		ioc->base_add_sg_single(psge, sgl_flags |
-		    data_out_sz, data_out_dma);
-
-		/* incr sgel */
-		psge += ioc->sge_size;
-
-		/* READ sgel last */
-		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
-		    MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
-		    MPI2_SGE_FLAGS_END_OF_LIST);
-		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
-		ioc->base_add_sg_single(psge, sgl_flags |
-		    data_in_sz, data_in_dma);
-	} else if (data_out_sz) /* WRITE */ {
-		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
-		    MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
-		    MPI2_SGE_FLAGS_END_OF_LIST | MPI2_SGE_FLAGS_HOST_TO_IOC);
-		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
-		ioc->base_add_sg_single(psge, sgl_flags |
-		    data_out_sz, data_out_dma);
-	} else if (data_in_sz) /* READ */ {
-		sgl_flags = (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
-		    MPI2_SGE_FLAGS_LAST_ELEMENT | MPI2_SGE_FLAGS_END_OF_BUFFER |
-		    MPI2_SGE_FLAGS_END_OF_LIST);
-		sgl_flags = sgl_flags << MPI2_SGE_FLAGS_SHIFT;
-		ioc->base_add_sg_single(psge, sgl_flags |
-		    data_in_sz, data_in_dma);
-	}
-
-	/* send command to firmware */
-#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
-	_ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
-#endif
-
-	init_completion(&ioc->ctl_cmds.done);
-	switch (mpi_request->Function) {
-	case MPI2_FUNCTION_SCSI_IO_REQUEST:
-	case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
-	{
-		Mpi2SCSIIORequest_t *scsiio_request =
-		    (Mpi2SCSIIORequest_t *)request;
-		scsiio_request->SenseBufferLength = SCSI_SENSE_BUFFERSIZE;
-		scsiio_request->SenseBufferLowAddress =
-		    mpt2sas_base_get_sense_buffer_dma(ioc, smid);
-		memset(ioc->ctl_cmds.sense, 0, SCSI_SENSE_BUFFERSIZE);
-		if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
-			mpt2sas_base_put_smid_scsi_io(ioc, smid,
-			    le16_to_cpu(mpi_request->FunctionDependent1));
-		else
-			mpt2sas_base_put_smid_default(ioc, smid);
-		break;
-	}
-	case MPI2_FUNCTION_SCSI_TASK_MGMT:
-	{
-		Mpi2SCSITaskManagementRequest_t *tm_request =
-		    (Mpi2SCSITaskManagementRequest_t *)request;
-
-		dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "TASK_MGMT: "
-		    "handle(0x%04x), task_type(0x%02x)\n", ioc->name,
-		    le16_to_cpu(tm_request->DevHandle), tm_request->TaskType));
-
-		if (tm_request->TaskType ==
-		    MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
-		    tm_request->TaskType ==
-		    MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
-			if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
-				mpt2sas_base_free_smid(ioc, smid);
-				goto out;
-			}
-		}
-
-		mpt2sas_scsih_set_tm_flag(ioc, le16_to_cpu(
-		    tm_request->DevHandle));
-		mpt2sas_base_put_smid_hi_priority(ioc, smid);
-		break;
-	}
-	case MPI2_FUNCTION_SMP_PASSTHROUGH:
-	{
-		Mpi2SmpPassthroughRequest_t *smp_request =
-		    (Mpi2SmpPassthroughRequest_t *)mpi_request;
-		u8 *data;
-
-		/* ioc determines which port to use */
-		smp_request->PhysicalPort = 0xFF;
-		if (smp_request->PassthroughFlags &
-		    MPI2_SMP_PT_REQ_PT_FLAGS_IMMEDIATE)
-			data = (u8 *)&smp_request->SGL;
-		else {
-			if (unlikely(data_out == NULL)) {
-				printk(KERN_ERR "failure at %s:%d/%s()!\n",
-				    __FILE__, __LINE__, __func__);
-				mpt2sas_base_free_smid(ioc, smid);
-				ret = -EINVAL;
-				goto out;
-			}
-			data = data_out;
-		}
-
-		if (data[1] == 0x91 && (data[10] == 1 || data[10] == 2)) {
-			ioc->ioc_link_reset_in_progress = 1;
-			ioc->ignore_loginfos = 1;
-		}
-		mpt2sas_base_put_smid_default(ioc, smid);
-		break;
-	}
-	case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
-	{
-		Mpi2SasIoUnitControlRequest_t *sasiounit_request =
-		    (Mpi2SasIoUnitControlRequest_t *)mpi_request;
-
-		if (sasiounit_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET
-		    || sasiounit_request->Operation ==
-		    MPI2_SAS_OP_PHY_LINK_RESET) {
-			ioc->ioc_link_reset_in_progress = 1;
-			ioc->ignore_loginfos = 1;
-		}
-		mpt2sas_base_put_smid_default(ioc, smid);
-		break;
-	}
-	default:
-		mpt2sas_base_put_smid_default(ioc, smid);
-		break;
-	}
-
-	if (karg.timeout < MPT2_IOCTL_DEFAULT_TIMEOUT)
-		timeout = MPT2_IOCTL_DEFAULT_TIMEOUT;
-	else
-		timeout = karg.timeout;
-	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
-	    timeout*HZ);
-	if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
-		Mpi2SCSITaskManagementRequest_t *tm_request =
-		    (Mpi2SCSITaskManagementRequest_t *)mpi_request;
-		mpt2sas_scsih_clear_tm_flag(ioc, le16_to_cpu(
-		    tm_request->DevHandle));
-	} else if ((mpi_request->Function == MPI2_FUNCTION_SMP_PASSTHROUGH ||
-	    mpi_request->Function == MPI2_FUNCTION_SAS_IO_UNIT_CONTROL) &&
-		ioc->ioc_link_reset_in_progress) {
-		ioc->ioc_link_reset_in_progress = 0;
-		ioc->ignore_loginfos = 0;
-	}
-	if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
-		printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
-		    __func__);
-		_debug_dump_mf(mpi_request, karg.data_sge_offset);
-		if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
-			issue_reset = 1;
-		goto issue_host_reset;
-	}
-
-	mpi_reply = ioc->ctl_cmds.reply;
-	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
-
-#ifdef CONFIG_SCSI_MPT2SAS_LOGGING
-	if (mpi_reply->Function == MPI2_FUNCTION_SCSI_TASK_MGMT &&
-	    (ioc->logging_level & MPT_DEBUG_TM)) {
-		Mpi2SCSITaskManagementReply_t *tm_reply =
-		    (Mpi2SCSITaskManagementReply_t *)mpi_reply;
-
-		printk(MPT2SAS_INFO_FMT "TASK_MGMT: "
-		    "IOCStatus(0x%04x), IOCLogInfo(0x%08x), "
-		    "TerminationCount(0x%08x)\n", ioc->name,
-		    le16_to_cpu(tm_reply->IOCStatus),
-		    le32_to_cpu(tm_reply->IOCLogInfo),
-		    le32_to_cpu(tm_reply->TerminationCount));
-	}
-#endif
-	/* copy out xdata to user */
-	if (data_in_sz) {
-		if (copy_to_user(karg.data_in_buf_ptr, data_in,
-		    data_in_sz)) {
-			printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
-			    __LINE__, __func__);
-			ret = -ENODATA;
-			goto out;
-		}
-	}
-
-	/* copy out reply message frame to user */
-	if (karg.max_reply_bytes) {
-		sz = min_t(u32, karg.max_reply_bytes, ioc->reply_sz);
-		if (copy_to_user(karg.reply_frame_buf_ptr, ioc->ctl_cmds.reply,
-		    sz)) {
-			printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
-			    __LINE__, __func__);
-			ret = -ENODATA;
-			goto out;
-		}
-	}
-
-	/* copy out sense to user */
-	if (karg.max_sense_bytes && (mpi_request->Function ==
-	    MPI2_FUNCTION_SCSI_IO_REQUEST || mpi_request->Function ==
-	    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
-		sz = min_t(u32, karg.max_sense_bytes, SCSI_SENSE_BUFFERSIZE);
-		if (copy_to_user(karg.sense_data_ptr,
-			ioc->ctl_cmds.sense, sz)) {
-			printk(KERN_ERR "failure at %s:%d/%s()!\n", __FILE__,
-			    __LINE__, __func__);
-			ret = -ENODATA;
-			goto out;
-		}
-	}
-
- issue_host_reset:
-	if (issue_reset) {
-		ret = -ENODATA;
-		if ((mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST ||
-		    mpi_request->Function ==
-		    MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH ||
-		    mpi_request->Function == MPI2_FUNCTION_SATA_PASSTHROUGH)) {
-			printk(MPT2SAS_INFO_FMT "issue target reset: handle "
-			    "= (0x%04x)\n", ioc->name,
-			    le16_to_cpu(mpi_request->FunctionDependent1));
-			mpt2sas_halt_firmware(ioc);
-			mpt2sas_scsih_issue_tm(ioc,
-			    le16_to_cpu(mpi_request->FunctionDependent1), 0, 0,
-			    0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 10,
-			    TM_MUTEX_ON);
-			ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
-		} else
-			mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
-			    FORCE_BIG_HAMMER);
-	}
-
- out:
-
-	/* free memory associated with sg buffers */
-	if (data_in)
-		pci_free_consistent(ioc->pdev, data_in_sz, data_in,
-		    data_in_dma);
-
-	if (data_out)
-		pci_free_consistent(ioc->pdev, data_out_sz, data_out,
-		    data_out_dma);
-
-	kfree(mpi_request);
-	ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
-	return ret;
-}
-
-/**
- * _ctl_getiocinfo - main handler for MPT2IOCINFO opcode
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- */
-static long
-_ctl_getiocinfo(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_ioctl_iocinfo karg;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
-	    __func__));
-
-	memset(&karg, 0 , sizeof(karg));
-	if (ioc->is_warpdrive)
-		karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2_SSS6200;
-	else
-		karg.adapter_type = MPT2_IOCTL_INTERFACE_SAS2;
-	if (ioc->pfacts)
-		karg.port_number = ioc->pfacts[0].PortNumber;
-	karg.hw_rev = ioc->pdev->revision;
-	karg.pci_id = ioc->pdev->device;
-	karg.subsystem_device = ioc->pdev->subsystem_device;
-	karg.subsystem_vendor = ioc->pdev->subsystem_vendor;
-	karg.pci_information.u.bits.bus = ioc->pdev->bus->number;
-	karg.pci_information.u.bits.device = PCI_SLOT(ioc->pdev->devfn);
-	karg.pci_information.u.bits.function = PCI_FUNC(ioc->pdev->devfn);
-	karg.pci_information.segment_id = pci_domain_nr(ioc->pdev->bus);
-	karg.firmware_version = ioc->facts.FWVersion.Word;
-	strcpy(karg.driver_version, MPT2SAS_DRIVER_NAME);
-	strcat(karg.driver_version, "-");
-	strcat(karg.driver_version, MPT2SAS_DRIVER_VERSION);
-	karg.bios_version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
-
-	if (copy_to_user(arg, &karg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-	return 0;
-}
-
-/**
- * _ctl_eventquery - main handler for MPT2EVENTQUERY opcode
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- */
-static long
-_ctl_eventquery(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_ioctl_eventquery karg;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
-	    __func__));
-
-	karg.event_entries = MPT2SAS_CTL_EVENT_LOG_SIZE;
-	memcpy(karg.event_types, ioc->event_type,
-	    MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
-
-	if (copy_to_user(arg, &karg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-	return 0;
-}
-
-/**
- * _ctl_eventenable - main handler for MPT2EVENTENABLE opcode
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- */
-static long
-_ctl_eventenable(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_ioctl_eventenable karg;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
-	    __func__));
-
-	if (ioc->event_log)
-		return 0;
-	memcpy(ioc->event_type, karg.event_types,
-	    MPI2_EVENT_NOTIFY_EVENTMASK_WORDS * sizeof(u32));
-	mpt2sas_base_validate_event_type(ioc, ioc->event_type);
-
-	/* initialize event_log */
-	ioc->event_context = 0;
-	ioc->aen_event_read_flag = 0;
-	ioc->event_log = kcalloc(MPT2SAS_CTL_EVENT_LOG_SIZE,
-	    sizeof(struct MPT2_IOCTL_EVENTS), GFP_KERNEL);
-	if (!ioc->event_log) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -ENOMEM;
-	}
-	return 0;
-}
-
-/**
- * _ctl_eventreport - main handler for MPT2EVENTREPORT opcode
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- */
-static long
-_ctl_eventreport(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_ioctl_eventreport karg;
-	u32 number_bytes, max_events, max;
-	struct mpt2_ioctl_eventreport __user *uarg = arg;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
-	    __func__));
-
-	number_bytes = karg.hdr.max_data_size -
-	    sizeof(struct mpt2_ioctl_header);
-	max_events = number_bytes/sizeof(struct MPT2_IOCTL_EVENTS);
-	max = min_t(u32, MPT2SAS_CTL_EVENT_LOG_SIZE, max_events);
-
-	/* If fewer than 1 event is requested, there must have
-	 * been some type of error.
-	 */
-	if (!max || !ioc->event_log)
-		return -ENODATA;
-
-	number_bytes = max * sizeof(struct MPT2_IOCTL_EVENTS);
-	if (copy_to_user(uarg->event_data, ioc->event_log, number_bytes)) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	/* reset flag so SIGIO can restart */
-	ioc->aen_event_read_flag = 0;
-	return 0;
-}
-
-/**
- * _ctl_do_reset - main handler for MPT2HARDRESET opcode
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- */
-static long
-_ctl_do_reset(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_ioctl_diag_reset karg;
-	int retval;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	if (ioc->shost_recovery || ioc->pci_error_recovery ||
-		ioc->is_driver_loading)
-		return -EAGAIN;
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name,
-	    __func__));
-
-	retval = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
-	    FORCE_BIG_HAMMER);
-	printk(MPT2SAS_INFO_FMT "host reset: %s\n",
-	    ioc->name, ((!retval) ? "SUCCESS" : "FAILED"));
-	return 0;
-}
-
-/**
- * _ctl_btdh_search_sas_device - searching for sas device
- * @ioc: per adapter object
- * @btdh: btdh ioctl payload
- */
-static int
-_ctl_btdh_search_sas_device(struct MPT2SAS_ADAPTER *ioc,
-    struct mpt2_ioctl_btdh_mapping *btdh)
-{
-	struct _sas_device *sas_device;
-	unsigned long flags;
-	int rc = 0;
-
-	if (list_empty(&ioc->sas_device_list))
-		return rc;
-
-	spin_lock_irqsave(&ioc->sas_device_lock, flags);
-	list_for_each_entry(sas_device, &ioc->sas_device_list, list) {
-		if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
-		    btdh->handle == sas_device->handle) {
-			btdh->bus = sas_device->channel;
-			btdh->id = sas_device->id;
-			rc = 1;
-			goto out;
-		} else if (btdh->bus == sas_device->channel && btdh->id ==
-		    sas_device->id && btdh->handle == 0xFFFF) {
-			btdh->handle = sas_device->handle;
-			rc = 1;
-			goto out;
-		}
-	}
- out:
-	spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
-	return rc;
-}
-
-/**
- * _ctl_btdh_search_raid_device - searching for raid device
- * @ioc: per adapter object
- * @btdh: btdh ioctl payload
- */
-static int
-_ctl_btdh_search_raid_device(struct MPT2SAS_ADAPTER *ioc,
-    struct mpt2_ioctl_btdh_mapping *btdh)
-{
-	struct _raid_device *raid_device;
-	unsigned long flags;
-	int rc = 0;
-
-	if (list_empty(&ioc->raid_device_list))
-		return rc;
-
-	spin_lock_irqsave(&ioc->raid_device_lock, flags);
-	list_for_each_entry(raid_device, &ioc->raid_device_list, list) {
-		if (btdh->bus == 0xFFFFFFFF && btdh->id == 0xFFFFFFFF &&
-		    btdh->handle == raid_device->handle) {
-			btdh->bus = raid_device->channel;
-			btdh->id = raid_device->id;
-			rc = 1;
-			goto out;
-		} else if (btdh->bus == raid_device->channel && btdh->id ==
-		    raid_device->id && btdh->handle == 0xFFFF) {
-			btdh->handle = raid_device->handle;
-			rc = 1;
-			goto out;
-		}
-	}
- out:
-	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
-	return rc;
-}
-
-/**
- * _ctl_btdh_mapping - main handler for MPT2BTDHMAPPING opcode
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- */
-static long
-_ctl_btdh_mapping(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_ioctl_btdh_mapping karg;
-	int rc;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-	    __func__));
-
-	rc = _ctl_btdh_search_sas_device(ioc, &karg);
-	if (!rc)
-		_ctl_btdh_search_raid_device(ioc, &karg);
-
-	if (copy_to_user(arg, &karg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-	return 0;
-}
-
-/**
- * _ctl_diag_capability - return diag buffer capability
- * @ioc: per adapter object
- * @buffer_type: specifies either TRACE, SNAPSHOT, or EXTENDED
- *
- * returns 1 when diag buffer support is enabled in firmware
- */
-static u8
-_ctl_diag_capability(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type)
-{
-	u8 rc = 0;
-
-	switch (buffer_type) {
-	case MPI2_DIAG_BUF_TYPE_TRACE:
-		if (ioc->facts.IOCCapabilities &
-		    MPI2_IOCFACTS_CAPABILITY_DIAG_TRACE_BUFFER)
-			rc = 1;
-		break;
-	case MPI2_DIAG_BUF_TYPE_SNAPSHOT:
-		if (ioc->facts.IOCCapabilities &
-		    MPI2_IOCFACTS_CAPABILITY_SNAPSHOT_BUFFER)
-			rc = 1;
-		break;
-	case MPI2_DIAG_BUF_TYPE_EXTENDED:
-		if (ioc->facts.IOCCapabilities &
-		    MPI2_IOCFACTS_CAPABILITY_EXTENDED_BUFFER)
-			rc = 1;
-	}
-
-	return rc;
-}
-
-/**
- * _ctl_diag_register_2 - wrapper for registering diag buffer support
- * @ioc: per adapter object
- * @diag_register: the diag_register struct passed in from user space
- *
- */
-static long
-_ctl_diag_register_2(struct MPT2SAS_ADAPTER *ioc,
-    struct mpt2_diag_register *diag_register)
-{
-	int rc, i;
-	void *request_data = NULL;
-	dma_addr_t request_data_dma;
-	u32 request_data_sz = 0;
-	Mpi2DiagBufferPostRequest_t *mpi_request;
-	Mpi2DiagBufferPostReply_t *mpi_reply;
-	u8 buffer_type;
-	unsigned long timeleft;
-	u16 smid;
-	u16 ioc_status;
-	u8 issue_reset = 0;
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-	    __func__));
-
-	if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
-		printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
-		    ioc->name, __func__);
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	buffer_type = diag_register->buffer_type;
-	if (!_ctl_diag_capability(ioc, buffer_type)) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -EPERM;
-	}
-
-	if (ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_REGISTERED) {
-		printk(MPT2SAS_ERR_FMT "%s: already has a registered "
-		    "buffer for buffer_type(0x%02x)\n", ioc->name, __func__,
-		    buffer_type);
-		return -EINVAL;
-	}
-
-	if (diag_register->requested_buffer_size % 4)  {
-		printk(MPT2SAS_ERR_FMT "%s: the requested_buffer_size "
-		    "is not 4 byte aligned\n", ioc->name, __func__);
-		return -EINVAL;
-	}
-
-	smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
-	if (!smid) {
-		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
-		    ioc->name, __func__);
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	rc = 0;
-	ioc->ctl_cmds.status = MPT2_CMD_PENDING;
-	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
-	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
-	ioc->ctl_cmds.smid = smid;
-
-	request_data = ioc->diag_buffer[buffer_type];
-	request_data_sz = diag_register->requested_buffer_size;
-	ioc->unique_id[buffer_type] = diag_register->unique_id;
-	ioc->diag_buffer_status[buffer_type] = 0;
-	memcpy(ioc->product_specific[buffer_type],
-	    diag_register->product_specific, MPT2_PRODUCT_SPECIFIC_DWORDS);
-	ioc->diagnostic_flags[buffer_type] = diag_register->diagnostic_flags;
-
-	if (request_data) {
-		request_data_dma = ioc->diag_buffer_dma[buffer_type];
-		if (request_data_sz != ioc->diag_buffer_sz[buffer_type]) {
-			pci_free_consistent(ioc->pdev,
-			    ioc->diag_buffer_sz[buffer_type],
-			    request_data, request_data_dma);
-			request_data = NULL;
-		}
-	}
-
-	if (request_data == NULL) {
-		ioc->diag_buffer_sz[buffer_type] = 0;
-		ioc->diag_buffer_dma[buffer_type] = 0;
-		request_data = pci_alloc_consistent(
-			ioc->pdev, request_data_sz, &request_data_dma);
-		if (request_data == NULL) {
-			printk(MPT2SAS_ERR_FMT "%s: failed allocating memory"
-			    " for diag buffers, requested size(%d)\n",
-			    ioc->name, __func__, request_data_sz);
-			mpt2sas_base_free_smid(ioc, smid);
-			return -ENOMEM;
-		}
-		ioc->diag_buffer[buffer_type] = request_data;
-		ioc->diag_buffer_sz[buffer_type] = request_data_sz;
-		ioc->diag_buffer_dma[buffer_type] = request_data_dma;
-	}
-
-	mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
-	mpi_request->BufferType = diag_register->buffer_type;
-	mpi_request->Flags = cpu_to_le32(diag_register->diagnostic_flags);
-	mpi_request->BufferAddress = cpu_to_le64(request_data_dma);
-	mpi_request->BufferLength = cpu_to_le32(request_data_sz);
-	mpi_request->VF_ID = 0; /* TODO */
-	mpi_request->VP_ID = 0;
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: diag_buffer(0x%p), "
-	    "dma(0x%llx), sz(%d)\n", ioc->name, __func__, request_data,
-	    (unsigned long long)request_data_dma,
-	    le32_to_cpu(mpi_request->BufferLength)));
-
-	for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
-		mpi_request->ProductSpecific[i] =
-			cpu_to_le32(ioc->product_specific[buffer_type][i]);
-
-	init_completion(&ioc->ctl_cmds.done);
-	mpt2sas_base_put_smid_default(ioc, smid);
-	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
-	    MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
-
-	if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
-		printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
-		    __func__);
-		_debug_dump_mf(mpi_request,
-		    sizeof(Mpi2DiagBufferPostRequest_t)/4);
-		if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
-			issue_reset = 1;
-		goto issue_host_reset;
-	}
-
-	/* process the completed Reply Message Frame */
-	if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
-		    ioc->name, __func__);
-		rc = -EFAULT;
-		goto out;
-	}
-
-	mpi_reply = ioc->ctl_cmds.reply;
-	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
-
-	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
-		ioc->diag_buffer_status[buffer_type] |=
-			MPT2_DIAG_BUFFER_IS_REGISTERED;
-		dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
-		    ioc->name, __func__));
-	} else {
-		printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) "
-		    "log_info(0x%08x)\n", ioc->name, __func__,
-		    ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
-		rc = -EFAULT;
-	}
-
- issue_host_reset:
-	if (issue_reset)
-		mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
-		    FORCE_BIG_HAMMER);
-
- out:
-
-	if (rc && request_data)
-		pci_free_consistent(ioc->pdev, request_data_sz,
-		    request_data, request_data_dma);
-
-	ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
-	return rc;
-}
-
-/**
- * mpt2sas_enable_diag_buffer - enabling diag_buffers support driver load time
- * @ioc: per adapter object
- * @bits_to_register: bitwise field where trace is bit 0, and snapshot is bit 1
- *
- * This is called when command line option diag_buffer_enable is enabled
- * at driver load time.
- */
-void
-mpt2sas_enable_diag_buffer(struct MPT2SAS_ADAPTER *ioc, u8 bits_to_register)
-{
-	struct mpt2_diag_register diag_register;
-
-	memset(&diag_register, 0, sizeof(struct mpt2_diag_register));
-
-	if (bits_to_register & 1) {
-		printk(MPT2SAS_INFO_FMT "registering trace buffer support\n",
-		    ioc->name);
-		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
-		/* register for 1MB buffers  */
-		diag_register.requested_buffer_size = (1024 * 1024);
-		diag_register.unique_id = 0x7075900;
-		_ctl_diag_register_2(ioc,  &diag_register);
-	}
-
-	if (bits_to_register & 2) {
-		printk(MPT2SAS_INFO_FMT "registering snapshot buffer support\n",
-		    ioc->name);
-		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_SNAPSHOT;
-		/* register for 2MB buffers  */
-		diag_register.requested_buffer_size = 2 * (1024 * 1024);
-		diag_register.unique_id = 0x7075901;
-		_ctl_diag_register_2(ioc,  &diag_register);
-	}
-
-	if (bits_to_register & 4) {
-		printk(MPT2SAS_INFO_FMT "registering extended buffer support\n",
-		    ioc->name);
-		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_EXTENDED;
-		/* register for 2MB buffers  */
-		diag_register.requested_buffer_size = 2 * (1024 * 1024);
-		diag_register.unique_id = 0x7075901;
-		_ctl_diag_register_2(ioc,  &diag_register);
-	}
-}
-
-/**
- * _ctl_diag_register - application register with driver
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- *
- * This will allow the driver to setup any required buffers that will be
- * needed by firmware to communicate with the driver.
- */
-static long
-_ctl_diag_register(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_diag_register karg;
-	long rc;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	rc = _ctl_diag_register_2(ioc, &karg);
-	return rc;
-}
-
-/**
- * _ctl_diag_unregister - application unregister with driver
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- *
- * This will allow the driver to cleanup any memory allocated for diag
- * messages and to free up any resources.
- */
-static long
-_ctl_diag_unregister(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_diag_unregister karg;
-	void *request_data;
-	dma_addr_t request_data_dma;
-	u32 request_data_sz;
-	u8 buffer_type;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-	    __func__));
-
-	buffer_type = karg.unique_id & 0x000000ff;
-	if (!_ctl_diag_capability(ioc, buffer_type)) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -EPERM;
-	}
-
-	if ((ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
-		    "registered\n", ioc->name, __func__, buffer_type);
-		return -EINVAL;
-	}
-	if ((ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_RELEASED) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) has not been "
-		    "released\n", ioc->name, __func__, buffer_type);
-		return -EINVAL;
-	}
-
-	if (karg.unique_id != ioc->unique_id[buffer_type]) {
-		printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
-		    "registered\n", ioc->name, __func__, karg.unique_id);
-		return -EINVAL;
-	}
-
-	request_data = ioc->diag_buffer[buffer_type];
-	if (!request_data) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -ENOMEM;
-	}
-
-	request_data_sz = ioc->diag_buffer_sz[buffer_type];
-	request_data_dma = ioc->diag_buffer_dma[buffer_type];
-	pci_free_consistent(ioc->pdev, request_data_sz,
-	    request_data, request_data_dma);
-	ioc->diag_buffer[buffer_type] = NULL;
-	ioc->diag_buffer_status[buffer_type] = 0;
-	return 0;
-}
-
-/**
- * _ctl_diag_query - query relevant info associated with diag buffers
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- *
- * The application will send only buffer_type and unique_id.  Driver will
- * inspect unique_id first, if valid, fill in all the info.  If unique_id is
- * 0x00, the driver will return info specified by Buffer Type.
- */
-static long
-_ctl_diag_query(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_diag_query karg;
-	void *request_data;
-	int i;
-	u8 buffer_type;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-	    __func__));
-
-	karg.application_flags = 0;
-	buffer_type = karg.buffer_type;
-
-	if (!_ctl_diag_capability(ioc, buffer_type)) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -EPERM;
-	}
-
-	if ((ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
-		    "registered\n", ioc->name, __func__, buffer_type);
-		return -EINVAL;
-	}
-
-	if (karg.unique_id & 0xffffff00) {
-		if (karg.unique_id != ioc->unique_id[buffer_type]) {
-			printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
-			    "registered\n", ioc->name, __func__,
-			    karg.unique_id);
-			return -EINVAL;
-		}
-	}
-
-	request_data = ioc->diag_buffer[buffer_type];
-	if (!request_data) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -ENOMEM;
-	}
-
-	if (ioc->diag_buffer_status[buffer_type] & MPT2_DIAG_BUFFER_IS_RELEASED)
-		karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED |
-		    MPT2_APP_FLAGS_BUFFER_VALID);
-	else
-		karg.application_flags = (MPT2_APP_FLAGS_APP_OWNED |
-		    MPT2_APP_FLAGS_BUFFER_VALID |
-		    MPT2_APP_FLAGS_FW_BUFFER_ACCESS);
-
-	for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
-		karg.product_specific[i] =
-		    ioc->product_specific[buffer_type][i];
-
-	karg.total_buffer_size = ioc->diag_buffer_sz[buffer_type];
-	karg.driver_added_buffer_size = 0;
-	karg.unique_id = ioc->unique_id[buffer_type];
-	karg.diagnostic_flags = ioc->diagnostic_flags[buffer_type];
-
-	if (copy_to_user(arg, &karg, sizeof(struct mpt2_diag_query))) {
-		printk(MPT2SAS_ERR_FMT "%s: unable to write mpt2_diag_query "
-		    "data @ %p\n", ioc->name, __func__, arg);
-		return -EFAULT;
-	}
-	return 0;
-}
-
-/**
- * _ctl_send_release - Diag Release Message
- * @ioc: per adapter object
- * @buffer_type - specifies either TRACE, SNAPSHOT, or EXTENDED
- * @issue_reset - specifies whether host reset is required.
- *
- */
-static int
-_ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, u8 *issue_reset)
-{
-	Mpi2DiagReleaseRequest_t *mpi_request;
-	Mpi2DiagReleaseReply_t *mpi_reply;
-	u16 smid;
-	u16 ioc_status;
-	u32 ioc_state;
-	int rc;
-	unsigned long timeleft;
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-	    __func__));
-
-	rc = 0;
-	*issue_reset = 0;
-
-	ioc_state = mpt2sas_base_get_iocstate(ioc, 1);
-	if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) {
-		dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-		    "skipping due to FAULT state\n", ioc->name,
-		    __func__));
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
-		printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
-		    ioc->name, __func__);
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
-	if (!smid) {
-		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
-		    ioc->name, __func__);
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	ioc->ctl_cmds.status = MPT2_CMD_PENDING;
-	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
-	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
-	ioc->ctl_cmds.smid = smid;
-
-	mpi_request->Function = MPI2_FUNCTION_DIAG_RELEASE;
-	mpi_request->BufferType = buffer_type;
-	mpi_request->VF_ID = 0; /* TODO */
-	mpi_request->VP_ID = 0;
-
-	init_completion(&ioc->ctl_cmds.done);
-	mpt2sas_base_put_smid_default(ioc, smid);
-	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
-	    MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
-
-	if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
-		printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
-		    __func__);
-		_debug_dump_mf(mpi_request,
-		    sizeof(Mpi2DiagReleaseRequest_t)/4);
-		if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
-			*issue_reset = 1;
-		rc = -EFAULT;
-		goto out;
-	}
-
-	/* process the completed Reply Message Frame */
-	if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
-		    ioc->name, __func__);
-		rc = -EFAULT;
-		goto out;
-	}
-
-	mpi_reply = ioc->ctl_cmds.reply;
-	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
-
-	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
-		ioc->diag_buffer_status[buffer_type] |=
-		    MPT2_DIAG_BUFFER_IS_RELEASED;
-		dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
-		    ioc->name, __func__));
-	} else {
-		printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) "
-		    "log_info(0x%08x)\n", ioc->name, __func__,
-		    ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
-		rc = -EFAULT;
-	}
-
- out:
-	ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
-	return rc;
-}
-
-/**
- * _ctl_diag_release - request to send Diag Release Message to firmware
- * @arg - user space buffer containing ioctl content
- *
- * This allows ownership of the specified buffer to returned to the driver,
- * allowing an application to read the buffer without fear that firmware is
- * overwritting information in the buffer.
- */
-static long
-_ctl_diag_release(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_diag_release karg;
-	void *request_data;
-	int rc;
-	u8 buffer_type;
-	u8 issue_reset = 0;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-	    __func__));
-
-	buffer_type = karg.unique_id & 0x000000ff;
-	if (!_ctl_diag_capability(ioc, buffer_type)) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -EPERM;
-	}
-
-	if ((ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) is not "
-		    "registered\n", ioc->name, __func__, buffer_type);
-		return -EINVAL;
-	}
-
-	if (karg.unique_id != ioc->unique_id[buffer_type]) {
-		printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
-		    "registered\n", ioc->name, __func__, karg.unique_id);
-		return -EINVAL;
-	}
-
-	if (ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_RELEASED) {
-		printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) "
-		    "is already released\n", ioc->name, __func__,
-		    buffer_type);
-		return 0;
-	}
-
-	request_data = ioc->diag_buffer[buffer_type];
-
-	if (!request_data) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have memory allocated for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -ENOMEM;
-	}
-
-	/* buffers were released by due to host reset */
-	if ((ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_DIAG_RESET)) {
-		ioc->diag_buffer_status[buffer_type] |=
-		    MPT2_DIAG_BUFFER_IS_RELEASED;
-		ioc->diag_buffer_status[buffer_type] &=
-		    ~MPT2_DIAG_BUFFER_IS_DIAG_RESET;
-		printk(MPT2SAS_ERR_FMT "%s: buffer_type(0x%02x) "
-		    "was released due to host reset\n", ioc->name, __func__,
-		    buffer_type);
-		return 0;
-	}
-
-	rc = _ctl_send_release(ioc, buffer_type, &issue_reset);
-
-	if (issue_reset)
-		mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
-		    FORCE_BIG_HAMMER);
-
-	return rc;
-}
-
-/**
- * _ctl_diag_read_buffer - request for copy of the diag buffer
- * @ioc: per adapter object
- * @arg - user space buffer containing ioctl content
- */
-static long
-_ctl_diag_read_buffer(struct MPT2SAS_ADAPTER *ioc, void __user *arg)
-{
-	struct mpt2_diag_read_buffer karg;
-	struct mpt2_diag_read_buffer __user *uarg = arg;
-	void *request_data, *diag_data;
-	Mpi2DiagBufferPostRequest_t *mpi_request;
-	Mpi2DiagBufferPostReply_t *mpi_reply;
-	int rc, i;
-	u8 buffer_type;
-	unsigned long timeleft, request_size, copy_size;
-	u16 smid;
-	u16 ioc_status;
-	u8 issue_reset = 0;
-
-	if (copy_from_user(&karg, arg, sizeof(karg))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
-	    __func__));
-
-	buffer_type = karg.unique_id & 0x000000ff;
-	if (!_ctl_diag_capability(ioc, buffer_type)) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have capability for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -EPERM;
-	}
-
-	if (karg.unique_id != ioc->unique_id[buffer_type]) {
-		printk(MPT2SAS_ERR_FMT "%s: unique_id(0x%08x) is not "
-		    "registered\n", ioc->name, __func__, karg.unique_id);
-		return -EINVAL;
-	}
-
-	request_data = ioc->diag_buffer[buffer_type];
-	if (!request_data) {
-		printk(MPT2SAS_ERR_FMT "%s: doesn't have buffer for "
-		    "buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type);
-		return -ENOMEM;
-	}
-
-	request_size = ioc->diag_buffer_sz[buffer_type];
-
-	if ((karg.starting_offset % 4) || (karg.bytes_to_read % 4)) {
-		printk(MPT2SAS_ERR_FMT "%s: either the starting_offset "
-		    "or bytes_to_read are not 4 byte aligned\n", ioc->name,
-		    __func__);
-		return -EINVAL;
-	}
-
-	if (karg.starting_offset > request_size)
-		return -EINVAL;
-
-	diag_data = (void *)(request_data + karg.starting_offset);
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: diag_buffer(%p), "
-	    "offset(%d), sz(%d)\n", ioc->name, __func__,
-	    diag_data, karg.starting_offset, karg.bytes_to_read));
-
-	/* Truncate data on requests that are too large */
-	if ((diag_data + karg.bytes_to_read < diag_data) ||
-	    (diag_data + karg.bytes_to_read > request_data + request_size))
-		copy_size = request_size - karg.starting_offset;
-	else
-		copy_size = karg.bytes_to_read;
-
-	if (copy_to_user((void __user *)uarg->diagnostic_data,
-	    diag_data, copy_size)) {
-		printk(MPT2SAS_ERR_FMT "%s: Unable to write "
-		    "mpt_diag_read_buffer_t data @ %p\n", ioc->name,
-		    __func__, diag_data);
-		return -EFAULT;
-	}
-
-	if ((karg.flags & MPT2_FLAGS_REREGISTER) == 0)
-		return 0;
-
-	dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: Reregister "
-		"buffer_type(0x%02x)\n", ioc->name, __func__, buffer_type));
-	if ((ioc->diag_buffer_status[buffer_type] &
-	    MPT2_DIAG_BUFFER_IS_RELEASED) == 0) {
-		dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: "
-		    "buffer_type(0x%02x) is still registered\n", ioc->name,
-		     __func__, buffer_type));
-		return 0;
-	}
-	/* Get a free request frame and save the message context.
-	*/
-
-	if (ioc->ctl_cmds.status != MPT2_CMD_NOT_USED) {
-		printk(MPT2SAS_ERR_FMT "%s: ctl_cmd in use\n",
-		    ioc->name, __func__);
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	smid = mpt2sas_base_get_smid(ioc, ioc->ctl_cb_idx);
-	if (!smid) {
-		printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n",
-		    ioc->name, __func__);
-		rc = -EAGAIN;
-		goto out;
-	}
-
-	rc = 0;
-	ioc->ctl_cmds.status = MPT2_CMD_PENDING;
-	memset(ioc->ctl_cmds.reply, 0, ioc->reply_sz);
-	mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
-	ioc->ctl_cmds.smid = smid;
-
-	mpi_request->Function = MPI2_FUNCTION_DIAG_BUFFER_POST;
-	mpi_request->BufferType = buffer_type;
-	mpi_request->BufferLength =
-	    cpu_to_le32(ioc->diag_buffer_sz[buffer_type]);
-	mpi_request->BufferAddress =
-	    cpu_to_le64(ioc->diag_buffer_dma[buffer_type]);
-	for (i = 0; i < MPT2_PRODUCT_SPECIFIC_DWORDS; i++)
-		mpi_request->ProductSpecific[i] =
-			cpu_to_le32(ioc->product_specific[buffer_type][i]);
-	mpi_request->VF_ID = 0; /* TODO */
-	mpi_request->VP_ID = 0;
-
-	init_completion(&ioc->ctl_cmds.done);
-	mpt2sas_base_put_smid_default(ioc, smid);
-	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
-	    MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
-
-	if (!(ioc->ctl_cmds.status & MPT2_CMD_COMPLETE)) {
-		printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name,
-		    __func__);
-		_debug_dump_mf(mpi_request,
-		    sizeof(Mpi2DiagBufferPostRequest_t)/4);
-		if (!(ioc->ctl_cmds.status & MPT2_CMD_RESET))
-			issue_reset = 1;
-		goto issue_host_reset;
-	}
-
-	/* process the completed Reply Message Frame */
-	if ((ioc->ctl_cmds.status & MPT2_CMD_REPLY_VALID) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: no reply message\n",
-		    ioc->name, __func__);
-		rc = -EFAULT;
-		goto out;
-	}
-
-	mpi_reply = ioc->ctl_cmds.reply;
-	ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK;
-
-	if (ioc_status == MPI2_IOCSTATUS_SUCCESS) {
-		ioc->diag_buffer_status[buffer_type] |=
-		    MPT2_DIAG_BUFFER_IS_REGISTERED;
-		dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: success\n",
-		    ioc->name, __func__));
-	} else {
-		printk(MPT2SAS_INFO_FMT "%s: ioc_status(0x%04x) "
-		    "log_info(0x%08x)\n", ioc->name, __func__,
-		    ioc_status, le32_to_cpu(mpi_reply->IOCLogInfo));
-		rc = -EFAULT;
-	}
-
- issue_host_reset:
-	if (issue_reset)
-		mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
-		    FORCE_BIG_HAMMER);
-
- out:
-
-	ioc->ctl_cmds.status = MPT2_CMD_NOT_USED;
-	return rc;
-}
-
-
-#ifdef CONFIG_COMPAT
-/**
- * _ctl_compat_mpt_command - convert 32bit pointers to 64bit.
- * @ioc: per adapter object
- * @cmd - ioctl opcode
- * @arg - (struct mpt2_ioctl_command32)
- *
- * MPT2COMMAND32 - Handle 32bit applications running on 64bit os.
- */
-static long
-_ctl_compat_mpt_command(struct MPT2SAS_ADAPTER *ioc, unsigned cmd,
-	void __user *arg)
-{
-	struct mpt2_ioctl_command32 karg32;
-	struct mpt2_ioctl_command32 __user *uarg;
-	struct mpt2_ioctl_command karg;
-
-	if (_IOC_SIZE(cmd) != sizeof(struct mpt2_ioctl_command32))
-		return -EINVAL;
-
-	uarg = (struct mpt2_ioctl_command32 __user *) arg;
-
-	if (copy_from_user(&karg32, (char __user *)arg, sizeof(karg32))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	memset(&karg, 0, sizeof(struct mpt2_ioctl_command));
-	karg.hdr.ioc_number = karg32.hdr.ioc_number;
-	karg.hdr.port_number = karg32.hdr.port_number;
-	karg.hdr.max_data_size = karg32.hdr.max_data_size;
-	karg.timeout = karg32.timeout;
-	karg.max_reply_bytes = karg32.max_reply_bytes;
-	karg.data_in_size = karg32.data_in_size;
-	karg.data_out_size = karg32.data_out_size;
-	karg.max_sense_bytes = karg32.max_sense_bytes;
-	karg.data_sge_offset = karg32.data_sge_offset;
-	karg.reply_frame_buf_ptr = compat_ptr(karg32.reply_frame_buf_ptr);
-	karg.data_in_buf_ptr = compat_ptr(karg32.data_in_buf_ptr);
-	karg.data_out_buf_ptr = compat_ptr(karg32.data_out_buf_ptr);
-	karg.sense_data_ptr = compat_ptr(karg32.sense_data_ptr);
-	return _ctl_do_mpt_command(ioc, karg, &uarg->mf);
-}
-#endif
-
-/**
- * _ctl_ioctl_main - main ioctl entry point
- * @file - (struct file)
- * @cmd - ioctl opcode
- * @arg -
- * compat - handles 32 bit applications in 64bit os
- */
-static long
-_ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg,
-	u8 compat)
-{
-	struct MPT2SAS_ADAPTER *ioc;
-	struct mpt2_ioctl_header ioctl_header;
-	enum block_state state;
-	long ret = -EINVAL;
-
-	/* get IOCTL header */
-	if (copy_from_user(&ioctl_header, (char __user *)arg,
-	    sizeof(struct mpt2_ioctl_header))) {
-		printk(KERN_ERR "failure at %s:%d/%s()!\n",
-		    __FILE__, __LINE__, __func__);
-		return -EFAULT;
-	}
-
-	if (_ctl_verify_adapter(ioctl_header.ioc_number, &ioc) == -1 || !ioc)
-		return -ENODEV;
-	if (ioc->shost_recovery || ioc->pci_error_recovery ||
-	    ioc->is_driver_loading)
-		return -EAGAIN;
-
-	state = (file->f_flags & O_NONBLOCK) ? NON_BLOCKING : BLOCKING;
-	if (state == NON_BLOCKING) {
-		if (!mutex_trylock(&ioc->ctl_cmds.mutex))
-			return -EAGAIN;
-	} else if (mutex_lock_interruptible(&ioc->ctl_cmds.mutex)) {
-		return -ERESTARTSYS;
-	}
-
-	switch (cmd) {
-	case MPT2IOCINFO:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_iocinfo))
-			ret = _ctl_getiocinfo(ioc, arg);
-		break;
-#ifdef CONFIG_COMPAT
-	case MPT2COMMAND32:
-#endif
-	case MPT2COMMAND:
-	{
-		struct mpt2_ioctl_command __user *uarg;
-		struct mpt2_ioctl_command karg;
-#ifdef CONFIG_COMPAT
-		if (compat) {
-			ret = _ctl_compat_mpt_command(ioc, cmd, arg);
-			break;
-		}
-#endif
-		if (copy_from_user(&karg, arg, sizeof(karg))) {
-			printk(KERN_ERR "failure at %s:%d/%s()!\n",
-			    __FILE__, __LINE__, __func__);
-			ret = -EFAULT;
-			break;
-		}
-
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) {
-			uarg = arg;
-			ret = _ctl_do_mpt_command(ioc, karg, &uarg->mf);
-		}
-		break;
-	}
-	case MPT2EVENTQUERY:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventquery))
-			ret = _ctl_eventquery(ioc, arg);
-		break;
-	case MPT2EVENTENABLE:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_eventenable))
-			ret = _ctl_eventenable(ioc, arg);
-		break;
-	case MPT2EVENTREPORT:
-		ret = _ctl_eventreport(ioc, arg);
-		break;
-	case MPT2HARDRESET:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_diag_reset))
-			ret = _ctl_do_reset(ioc, arg);
-		break;
-	case MPT2BTDHMAPPING:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_btdh_mapping))
-			ret = _ctl_btdh_mapping(ioc, arg);
-		break;
-	case MPT2DIAGREGISTER:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_register))
-			ret = _ctl_diag_register(ioc, arg);
-		break;
-	case MPT2DIAGUNREGISTER:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_unregister))
-			ret = _ctl_diag_unregister(ioc, arg);
-		break;
-	case MPT2DIAGQUERY:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_query))
-			ret = _ctl_diag_query(ioc, arg);
-		break;
-	case MPT2DIAGRELEASE:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_release))
-			ret = _ctl_diag_release(ioc, arg);
-		break;
-	case MPT2DIAGREADBUFFER:
-		if (_IOC_SIZE(cmd) == sizeof(struct mpt2_diag_read_buffer))
-			ret = _ctl_diag_read_buffer(ioc, arg);
-		break;
-	default:
-
-		dctlprintk(ioc, printk(MPT2SAS_INFO_FMT
-		    "unsupported ioctl opcode(0x%08x)\n", ioc->name, cmd));
-		break;
-	}
-
-	mutex_unlock(&ioc->ctl_cmds.mutex);
-	return ret;
-}
-
-/**
- * _ctl_ioctl - main ioctl entry point (unlocked)
- * @file - (struct file)
- * @cmd - ioctl opcode
- * @arg -
- */
-static long
-_ctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	long ret;
-
-	ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 0);
-	return ret;
-}
-#ifdef CONFIG_COMPAT
-/**
- * _ctl_ioctl_compat - main ioctl entry point (compat)
- * @file -
- * @cmd -
- * @arg -
- *
- * This routine handles 32 bit applications in 64bit os.
- */
-static long
-_ctl_ioctl_compat(struct file *file, unsigned cmd, unsigned long arg)
-{
-	long ret;
-
-	ret = _ctl_ioctl_main(file, cmd, (void __user *)arg, 1);
-	return ret;
-}
-#endif
-
-/* scsi host attributes */
-
-/**
- * _ctl_version_fw_show - firmware version
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_version_fw_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
-	    (ioc->facts.FWVersion.Word & 0xFF000000) >> 24,
-	    (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16,
-	    (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8,
-	    ioc->facts.FWVersion.Word & 0x000000FF);
-}
-static DEVICE_ATTR(version_fw, S_IRUGO, _ctl_version_fw_show, NULL);
-
-/**
- * _ctl_version_bios_show - bios version
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_version_bios_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	u32 version = le32_to_cpu(ioc->bios_pg3.BiosVersion);
-
-	return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n",
-	    (version & 0xFF000000) >> 24,
-	    (version & 0x00FF0000) >> 16,
-	    (version & 0x0000FF00) >> 8,
-	    version & 0x000000FF);
-}
-static DEVICE_ATTR(version_bios, S_IRUGO, _ctl_version_bios_show, NULL);
-
-/**
- * _ctl_version_mpi_show - MPI (message passing interface) version
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_version_mpi_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%03x.%02x\n",
-	    ioc->facts.MsgVersion, ioc->facts.HeaderVersion >> 8);
-}
-static DEVICE_ATTR(version_mpi, S_IRUGO, _ctl_version_mpi_show, NULL);
-
-/**
- * _ctl_version_product_show - product name
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_version_product_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.ChipName);
-}
-static DEVICE_ATTR(version_product, S_IRUGO,
-   _ctl_version_product_show, NULL);
-
-/**
- * _ctl_version_nvdata_persistent_show - ndvata persistent version
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_version_nvdata_persistent_show(struct device *cdev,
-    struct device_attribute *attr, char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%08xh\n",
-	    le32_to_cpu(ioc->iounit_pg0.NvdataVersionPersistent.Word));
-}
-static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO,
-    _ctl_version_nvdata_persistent_show, NULL);
-
-/**
- * _ctl_version_nvdata_default_show - nvdata default version
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_version_nvdata_default_show(struct device *cdev,
-    struct device_attribute *attr, char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%08xh\n",
-	    le32_to_cpu(ioc->iounit_pg0.NvdataVersionDefault.Word));
-}
-static DEVICE_ATTR(version_nvdata_default, S_IRUGO,
-    _ctl_version_nvdata_default_show, NULL);
-
-/**
- * _ctl_board_name_show - board name
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_board_name_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardName);
-}
-static DEVICE_ATTR(board_name, S_IRUGO, _ctl_board_name_show, NULL);
-
-/**
- * _ctl_board_assembly_show - board assembly name
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_board_assembly_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardAssembly);
-}
-static DEVICE_ATTR(board_assembly, S_IRUGO,
-    _ctl_board_assembly_show, NULL);
-
-/**
- * _ctl_board_tracer_show - board tracer number
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_board_tracer_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, 16, "%s\n", ioc->manu_pg0.BoardTracerNumber);
-}
-static DEVICE_ATTR(board_tracer, S_IRUGO,
-    _ctl_board_tracer_show, NULL);
-
-/**
- * _ctl_io_delay_show - io missing delay
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is for firmware implemention for deboucing device
- * removal events.
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_io_delay_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay);
-}
-static DEVICE_ATTR(io_delay, S_IRUGO,
-    _ctl_io_delay_show, NULL);
-
-/**
- * _ctl_device_delay_show - device missing delay
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is for firmware implemention for deboucing device
- * removal events.
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_device_delay_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay);
-}
-static DEVICE_ATTR(device_delay, S_IRUGO,
-    _ctl_device_delay_show, NULL);
-
-/**
- * _ctl_fw_queue_depth_show - global credits
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is firmware queue depth limit
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_fw_queue_depth_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->facts.RequestCredit);
-}
-static DEVICE_ATTR(fw_queue_depth, S_IRUGO,
-    _ctl_fw_queue_depth_show, NULL);
-
-/**
- * _ctl_sas_address_show - sas address
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is the controller sas address
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_host_sas_address_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
-	    (unsigned long long)ioc->sas_hba.sas_address);
-}
-static DEVICE_ATTR(host_sas_address, S_IRUGO,
-    _ctl_host_sas_address_show, NULL);
-
-/**
- * _ctl_logging_level_show - logging level
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read/write' shost attribute.
- */
-static ssize_t
-_ctl_logging_level_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->logging_level);
-}
-static ssize_t
-_ctl_logging_level_store(struct device *cdev, struct device_attribute *attr,
-    const char *buf, size_t count)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-	int val = 0;
-
-	if (sscanf(buf, "%x", &val) != 1)
-		return -EINVAL;
-
-	ioc->logging_level = val;
-	printk(MPT2SAS_INFO_FMT "logging_level=%08xh\n", ioc->name,
-	    ioc->logging_level);
-	return strlen(buf);
-}
-static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
-    _ctl_logging_level_show, _ctl_logging_level_store);
-
-/* device attributes */
-/*
- * _ctl_fwfault_debug_show - show/store fwfault_debug
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * mpt2sas_fwfault_debug is command line option
- * A sysfs 'read/write' shost attribute.
- */
-static ssize_t
-_ctl_fwfault_debug_show(struct device *cdev,
-    struct device_attribute *attr, char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", ioc->fwfault_debug);
-}
-static ssize_t
-_ctl_fwfault_debug_store(struct device *cdev,
-    struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-	int val = 0;
-
-	if (sscanf(buf, "%d", &val) != 1)
-		return -EINVAL;
-
-	ioc->fwfault_debug = val;
-	printk(MPT2SAS_INFO_FMT "fwfault_debug=%d\n", ioc->name,
-	    ioc->fwfault_debug);
-	return strlen(buf);
-}
-static DEVICE_ATTR(fwfault_debug, S_IRUGO | S_IWUSR,
-    _ctl_fwfault_debug_show, _ctl_fwfault_debug_store);
-
-
-/**
- * _ctl_ioc_reset_count_show - ioc reset count
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is firmware queue depth limit
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_ioc_reset_count_show(struct device *cdev, struct device_attribute *attr,
-    char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	return snprintf(buf, PAGE_SIZE, "%08d\n", ioc->ioc_reset_count);
-}
-static DEVICE_ATTR(ioc_reset_count, S_IRUGO,
-    _ctl_ioc_reset_count_show, NULL);
-
-/**
- * _ctl_ioc_reply_queue_count_show - number of reply queues
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is number of reply queues
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_ioc_reply_queue_count_show(struct device *cdev,
-	 struct device_attribute *attr, char *buf)
-{
-	u8 reply_queue_count;
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	if ((ioc->facts.IOCCapabilities &
-	    MPI2_IOCFACTS_CAPABILITY_MSI_X_INDEX) && ioc->msix_enable)
-		reply_queue_count = ioc->reply_queue_count;
-	else
-		reply_queue_count = 1;
-	return snprintf(buf, PAGE_SIZE, "%d\n", reply_queue_count);
-}
-static DEVICE_ATTR(reply_queue_count, S_IRUGO,
-	 _ctl_ioc_reply_queue_count_show, NULL);
-
-/**
- * _ctl_BRM_status_show - Backup Rail Monitor Status
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is number of reply queues
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_BRM_status_show(struct device *cdev, struct device_attribute *attr,
-	char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-	Mpi2IOUnitPage3_t *io_unit_pg3 = NULL;
-	Mpi2ConfigReply_t mpi_reply;
-	u16 backup_rail_monitor_status = 0;
-	u16 ioc_status;
-	int sz;
-	ssize_t rc = 0;
-
-	if (!ioc->is_warpdrive) {
-		printk(MPT2SAS_ERR_FMT "%s: BRM attribute is only for"\
-		    "warpdrive\n", ioc->name, __func__);
-		goto out;
-	}
-
-	/* allocate upto GPIOVal 36 entries */
-	sz = offsetof(Mpi2IOUnitPage3_t, GPIOVal) + (sizeof(u16) * 36);
-	io_unit_pg3 = kzalloc(sz, GFP_KERNEL);
-	if (!io_unit_pg3) {
-		printk(MPT2SAS_ERR_FMT "%s: failed allocating memory"\
-		    "for iounit_pg3: (%d) bytes\n", ioc->name, __func__, sz);
-		goto out;
-	}
-
-	if (mpt2sas_config_get_iounit_pg3(ioc, &mpi_reply, io_unit_pg3, sz) !=
-	    0) {
-		printk(MPT2SAS_ERR_FMT
-		    "%s: failed reading iounit_pg3\n", ioc->name,
-		    __func__);
-		goto out;
-	}
-
-	ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK;
-	if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
-		printk(MPT2SAS_ERR_FMT "%s: iounit_pg3 failed with"\
-		    "ioc_status(0x%04x)\n", ioc->name, __func__, ioc_status);
-		goto out;
-	}
-
-	if (io_unit_pg3->GPIOCount < 25) {
-		printk(MPT2SAS_ERR_FMT "%s: iounit_pg3->GPIOCount less than"\
-		     "25 entries, detected (%d) entries\n", ioc->name, __func__,
-		    io_unit_pg3->GPIOCount);
-		goto out;
-	}
-
-	/* BRM status is in bit zero of GPIOVal[24] */
-	backup_rail_monitor_status = le16_to_cpu(io_unit_pg3->GPIOVal[24]);
-	rc = snprintf(buf, PAGE_SIZE, "%d\n", (backup_rail_monitor_status & 1));
-
- out:
-	kfree(io_unit_pg3);
-	return rc;
-}
-static DEVICE_ATTR(BRM_status, S_IRUGO, _ctl_BRM_status_show, NULL);
-
-struct DIAG_BUFFER_START {
-	__le32 Size;
-	__le32 DiagVersion;
-	u8 BufferType;
-	u8 Reserved[3];
-	__le32 Reserved1;
-	__le32 Reserved2;
-	__le32 Reserved3;
-};
-/**
- * _ctl_host_trace_buffer_size_show - host buffer size (trace only)
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_host_trace_buffer_size_show(struct device *cdev,
-    struct device_attribute *attr, char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-	u32 size = 0;
-	struct DIAG_BUFFER_START *request_data;
-
-	if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
-		printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
-		    "registered\n", ioc->name, __func__);
-		return 0;
-	}
-
-	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-	    MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
-		    "registered\n", ioc->name, __func__);
-		return 0;
-	}
-
-	request_data = (struct DIAG_BUFFER_START *)
-	    ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE];
-	if ((le32_to_cpu(request_data->DiagVersion) == 0x00000000 ||
-	    le32_to_cpu(request_data->DiagVersion) == 0x01000000) &&
-	    le32_to_cpu(request_data->Reserved3) == 0x4742444c)
-		size = le32_to_cpu(request_data->Size);
-
-	ioc->ring_buffer_sz = size;
-	return snprintf(buf, PAGE_SIZE, "%d\n", size);
-}
-static DEVICE_ATTR(host_trace_buffer_size, S_IRUGO,
-	 _ctl_host_trace_buffer_size_show, NULL);
-
-/**
- * _ctl_host_trace_buffer_show - firmware ring buffer (trace only)
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read/write' shost attribute.
- *
- * You will only be able to read 4k bytes of ring buffer at a time.
- * In order to read beyond 4k bytes, you will have to write out the
- * offset to the same attribute, it will move the pointer.
- */
-static ssize_t
-_ctl_host_trace_buffer_show(struct device *cdev, struct device_attribute *attr,
-     char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-	void *request_data;
-	u32 size;
-
-	if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) {
-		printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
-		    "registered\n", ioc->name, __func__);
-		return 0;
-	}
-
-	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-	    MPT2_DIAG_BUFFER_IS_REGISTERED) == 0) {
-		printk(MPT2SAS_ERR_FMT "%s: host_trace_buffer is not "
-		    "registered\n", ioc->name, __func__);
-		return 0;
-	}
-
-	if (ioc->ring_buffer_offset > ioc->ring_buffer_sz)
-		return 0;
-
-	size = ioc->ring_buffer_sz - ioc->ring_buffer_offset;
-	size = (size > PAGE_SIZE) ? PAGE_SIZE : size;
-	request_data = ioc->diag_buffer[0] + ioc->ring_buffer_offset;
-	memcpy(buf, request_data, size);
-	return size;
-}
-
-static ssize_t
-_ctl_host_trace_buffer_store(struct device *cdev, struct device_attribute *attr,
-    const char *buf, size_t count)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-	int val = 0;
-
-	if (sscanf(buf, "%d", &val) != 1)
-		return -EINVAL;
-
-	ioc->ring_buffer_offset = val;
-	return strlen(buf);
-}
-static DEVICE_ATTR(host_trace_buffer, S_IRUGO | S_IWUSR,
-    _ctl_host_trace_buffer_show, _ctl_host_trace_buffer_store);
-
-/*****************************************/
-
-/**
- * _ctl_host_trace_buffer_enable_show - firmware ring buffer (trace only)
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * A sysfs 'read/write' shost attribute.
- *
- * This is a mechnism to post/release host_trace_buffers
- */
-static ssize_t
-_ctl_host_trace_buffer_enable_show(struct device *cdev,
-    struct device_attribute *attr, char *buf)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-
-	if ((!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) ||
-	   ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-	    MPT2_DIAG_BUFFER_IS_REGISTERED) == 0))
-		return snprintf(buf, PAGE_SIZE, "off\n");
-	else if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-	    MPT2_DIAG_BUFFER_IS_RELEASED))
-		return snprintf(buf, PAGE_SIZE, "release\n");
-	else
-		return snprintf(buf, PAGE_SIZE, "post\n");
-}
-
-static ssize_t
-_ctl_host_trace_buffer_enable_store(struct device *cdev,
-    struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct Scsi_Host *shost = class_to_shost(cdev);
-	struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
-	char str[10] = "";
-	struct mpt2_diag_register diag_register;
-	u8 issue_reset = 0;
-
-	if (sscanf(buf, "%9s", str) != 1)
-		return -EINVAL;
-
-	if (!strcmp(str, "post")) {
-		/* exit out if host buffers are already posted */
-		if ((ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE]) &&
-		    (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-		    MPT2_DIAG_BUFFER_IS_REGISTERED) &&
-		    ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-		    MPT2_DIAG_BUFFER_IS_RELEASED) == 0))
-			goto out;
-		memset(&diag_register, 0, sizeof(struct mpt2_diag_register));
-		printk(MPT2SAS_INFO_FMT "posting host trace buffers\n",
-		    ioc->name);
-		diag_register.buffer_type = MPI2_DIAG_BUF_TYPE_TRACE;
-		diag_register.requested_buffer_size = (1024 * 1024);
-		diag_register.unique_id = 0x7075900;
-		ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] = 0;
-		_ctl_diag_register_2(ioc,  &diag_register);
-	} else if (!strcmp(str, "release")) {
-		/* exit out if host buffers are already released */
-		if (!ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE])
-			goto out;
-		if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-		    MPT2_DIAG_BUFFER_IS_REGISTERED) == 0)
-			goto out;
-		if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
-		    MPT2_DIAG_BUFFER_IS_RELEASED))
-			goto out;
-		printk(MPT2SAS_INFO_FMT "releasing host trace buffer\n",
-		    ioc->name);
-		_ctl_send_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE, &issue_reset);
-	}
-
- out:
-	return strlen(buf);
-}
-static DEVICE_ATTR(host_trace_buffer_enable, S_IRUGO | S_IWUSR,
-    _ctl_host_trace_buffer_enable_show, _ctl_host_trace_buffer_enable_store);
-
-struct device_attribute *mpt2sas_host_attrs[] = {
-	&dev_attr_version_fw,
-	&dev_attr_version_bios,
-	&dev_attr_version_mpi,
-	&dev_attr_version_product,
-	&dev_attr_version_nvdata_persistent,
-	&dev_attr_version_nvdata_default,
-	&dev_attr_board_name,
-	&dev_attr_board_assembly,
-	&dev_attr_board_tracer,
-	&dev_attr_io_delay,
-	&dev_attr_device_delay,
-	&dev_attr_logging_level,
-	&dev_attr_fwfault_debug,
-	&dev_attr_fw_queue_depth,
-	&dev_attr_host_sas_address,
-	&dev_attr_ioc_reset_count,
-	&dev_attr_host_trace_buffer_size,
-	&dev_attr_host_trace_buffer,
-	&dev_attr_host_trace_buffer_enable,
-	&dev_attr_reply_queue_count,
-	&dev_attr_BRM_status,
-	NULL,
-};
-
-/**
- * _ctl_device_sas_address_show - sas address
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is the sas address for the target
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_device_sas_address_show(struct device *dev, struct device_attribute *attr,
-    char *buf)
-{
-	struct scsi_device *sdev = to_scsi_device(dev);
-	struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
-
-	return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
-	    (unsigned long long)sas_device_priv_data->sas_target->sas_address);
-}
-static DEVICE_ATTR(sas_address, S_IRUGO, _ctl_device_sas_address_show, NULL);
-
-/**
- * _ctl_device_handle_show - device handle
- * @cdev - pointer to embedded class device
- * @buf - the buffer returned
- *
- * This is the firmware assigned device handle
- *
- * A sysfs 'read-only' shost attribute.
- */
-static ssize_t
-_ctl_device_handle_show(struct device *dev, struct device_attribute *attr,
-    char *buf)
-{
-	struct scsi_device *sdev = to_scsi_device(dev);
-	struct MPT2SAS_DEVICE *sas_device_priv_data = sdev->hostdata;
-
-	return snprintf(buf, PAGE_SIZE, "0x%04x\n",
-	    sas_device_priv_data->sas_target->handle);
-}
-static DEVICE_ATTR(sas_device_handle, S_IRUGO, _ctl_device_handle_show, NULL);
-
-struct device_attribute *mpt2sas_dev_attrs[] = {
-	&dev_attr_sas_address,
-	&dev_attr_sas_device_handle,
-	NULL,
-};
-
-static const struct file_operations ctl_fops = {
-	.owner = THIS_MODULE,
-	.unlocked_ioctl = _ctl_ioctl,
-	.poll = _ctl_poll,
-	.fasync = _ctl_fasync,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = _ctl_ioctl_compat,
-#endif
-	.llseek = noop_llseek,
-};
-
-static struct miscdevice ctl_dev = {
-	.minor  = MPT2SAS_MINOR,
-	.name   = MPT2SAS_DEV_NAME,
-	.fops   = &ctl_fops,
-};
-
-/**
- * mpt2sas_ctl_init - main entry point for ctl.
- *
- */
-void
-mpt2sas_ctl_init(void)
-{
-	async_queue = NULL;
-	if (misc_register(&ctl_dev) < 0)
-		printk(KERN_ERR "%s can't register misc device [minor=%d]\n",
-		    MPT2SAS_DRIVER_NAME, MPT2SAS_MINOR);
-
-	init_waitqueue_head(&ctl_poll_wait);
-}
-
-/**
- * mpt2sas_ctl_exit - exit point for ctl
- *
- */
-void
-mpt2sas_ctl_exit(void)
-{
-	struct MPT2SAS_ADAPTER *ioc;
-	int i;
-
-	list_for_each_entry(ioc, &mpt2sas_ioc_list, list) {
-
-		/* free memory associated to diag buffers */
-		for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
-			if (!ioc->diag_buffer[i])
-				continue;
-			pci_free_consistent(ioc->pdev, ioc->diag_buffer_sz[i],
-			    ioc->diag_buffer[i], ioc->diag_buffer_dma[i]);
-			ioc->diag_buffer[i] = NULL;
-			ioc->diag_buffer_status[i] = 0;
-		}
-
-		kfree(ioc->event_log);
-	}
-	misc_deregister(&ctl_dev);
-}
-