drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c - linux/kernel/git/gregkh/usb - Git at Google

 /*
  * This module provides common API to set Diagnostic trigger for MPT
  * (Message Passing Technology) based controllers
  *
  * This code is based on drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c
  * Copyright (C) 2012-2014  LSI Corporation
  * Copyright (C) 2013-2014 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/compat.h>
 #include <linux/poll.h>

 #include <linux/io.h>
 #include <linux/uaccess.h>

 #include "mpt3sas_base.h"

 /**
  * _mpt3sas_raise_sigio - notifiy app
  * @ioc: per adapter object
  * @event_data: ?
  */
 static void
 _mpt3sas_raise_sigio(struct MPT3SAS_ADAPTER *ioc,
 	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
 {
 	Mpi2EventNotificationReply_t *mpi_reply;
 	u16 sz, event_data_sz;
 	unsigned long flags;

 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: enter\n", __func__));

 	sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
 	    sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4;
 	mpi_reply = kzalloc(sz, GFP_KERNEL);
 	if (!mpi_reply)
 		goto out;
 	mpi_reply->Event = cpu_to_le16(MPI3_EVENT_DIAGNOSTIC_TRIGGER_FIRED);
 	event_data_sz = (sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4) / 4;
 	mpi_reply->EventDataLength = cpu_to_le16(event_data_sz);
 	memcpy(&mpi_reply->EventData, event_data,
 	    sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: add to driver event log\n",
 				    __func__));
 	mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
 	kfree(mpi_reply);
  out:

 	/* clearing the diag_trigger_active flag */
 	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: clearing diag_trigger_active flag\n",
 				    __func__));
 	ioc->diag_trigger_active = 0;
 	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
 					 __func__));
 }

 /**
  * mpt3sas_process_trigger_data - process the event data for the trigger
  * @ioc: per adapter object
  * @event_data: ?
  */
 void
 mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,
 	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
 {
 	u8 issue_reset = 0;
 	u32 *trig_data = (u32 *)&event_data->u.master;

 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: enter\n", __func__));

 	/* release the diag buffer trace */
 	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
 		/*
 		 * add a log message so that user knows which event caused
 		 * the release
 		 */
 		ioc_info(ioc,
 		    "%s: Releasing the trace buffer. Trigger_Type 0x%08x, Data[0] 0x%08x, Data[1] 0x%08x\n",
 		    __func__, event_data->trigger_type,
 		    trig_data[0], trig_data[1]);
 		mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
 		    &issue_reset);
 	}

 	_mpt3sas_raise_sigio(ioc, event_data);

 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
 					 __func__));
 }

 /**
  * mpt3sas_trigger_master - Master trigger handler
  * @ioc: per adapter object
  * @trigger_bitmask:
  *
  */
 void
 mpt3sas_trigger_master(struct MPT3SAS_ADAPTER *ioc, u32 trigger_bitmask)
 {
 	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
 	unsigned long flags;
 	u8 found_match = 0;

 	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

 	if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||
 	    trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
 		goto by_pass_checks;

 	/* check to see if trace buffers are currently registered */
 	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

 	/* check to see if trace buffers are currently released */
 	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_RELEASED) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

  by_pass_checks:

 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: enter - trigger_bitmask = 0x%08x\n",
 				    __func__, trigger_bitmask));

 	/* don't send trigger if an trigger is currently active */
 	if (ioc->diag_trigger_active) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		goto out;
 	}

 	/* check for the trigger condition */
 	if (ioc->diag_trigger_master.MasterData & trigger_bitmask) {
 		found_match = 1;
 		ioc->diag_trigger_active = 1;
 		dTriggerDiagPrintk(ioc,
 				   ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
 					    __func__));
 	}
 	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

 	if (!found_match)
 		goto out;

 	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
 	event_data.trigger_type = MPT3SAS_TRIGGER_MASTER;
 	event_data.u.master.MasterData = trigger_bitmask;

 	if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT ||
 	    trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
 		_mpt3sas_raise_sigio(ioc, &event_data);
 	else
 		mpt3sas_send_trigger_data_event(ioc, &event_data);

  out:
 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
 					 __func__));
 }

 /**
  * mpt3sas_trigger_event - Event trigger handler
  * @ioc: per adapter object
  * @event: ?
  * @log_entry_qualifier: ?
  *
  */
 void
 mpt3sas_trigger_event(struct MPT3SAS_ADAPTER *ioc, u16 event,
 	u16 log_entry_qualifier)
 {
 	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
 	struct SL_WH_EVENT_TRIGGER_T *event_trigger;
 	int i;
 	unsigned long flags;
 	u8 found_match;

 	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

 	/* check to see if trace buffers are currently registered */
 	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

 	/* check to see if trace buffers are currently released */
 	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_RELEASED) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: enter - event = 0x%04x, log_entry_qualifier = 0x%04x\n",
 				    __func__, event, log_entry_qualifier));

 	/* don't send trigger if an trigger is currently active */
 	if (ioc->diag_trigger_active) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		goto out;
 	}

 	/* check for the trigger condition */
 	event_trigger = ioc->diag_trigger_event.EventTriggerEntry;
 	for (i = 0 , found_match = 0; i < ioc->diag_trigger_event.ValidEntries
 	    && !found_match; i++, event_trigger++) {
 		if (event_trigger->EventValue != event)
 			continue;
 		if (event == MPI2_EVENT_LOG_ENTRY_ADDED) {
 			if (event_trigger->LogEntryQualifier ==
 			    log_entry_qualifier)
 				found_match = 1;
 			continue;
 		}
 		found_match = 1;
 		ioc->diag_trigger_active = 1;
 		dTriggerDiagPrintk(ioc,
 				   ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
 					    __func__));
 	}
 	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

 	if (!found_match)
 		goto out;

 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
 				    __func__));
 	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
 	event_data.trigger_type = MPT3SAS_TRIGGER_EVENT;
 	event_data.u.event.EventValue = event;
 	event_data.u.event.LogEntryQualifier = log_entry_qualifier;
 	mpt3sas_send_trigger_data_event(ioc, &event_data);
  out:
 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
 					 __func__));
 }

 /**
  * mpt3sas_trigger_scsi - SCSI trigger handler
  * @ioc: per adapter object
  * @sense_key: ?
  * @asc: ?
  * @ascq: ?
  *
  */
 void
 mpt3sas_trigger_scsi(struct MPT3SAS_ADAPTER *ioc, u8 sense_key, u8 asc,
 	u8 ascq)
 {
 	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
 	struct SL_WH_SCSI_TRIGGER_T *scsi_trigger;
 	int i;
 	unsigned long flags;
 	u8 found_match;

 	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

 	/* check to see if trace buffers are currently registered */
 	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

 	/* check to see if trace buffers are currently released */
 	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_RELEASED) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: enter - sense_key = 0x%02x, asc = 0x%02x, ascq = 0x%02x\n",
 				    __func__, sense_key, asc, ascq));

 	/* don't send trigger if an trigger is currently active */
 	if (ioc->diag_trigger_active) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		goto out;
 	}

 	/* check for the trigger condition */
 	scsi_trigger = ioc->diag_trigger_scsi.SCSITriggerEntry;
 	for (i = 0 , found_match = 0; i < ioc->diag_trigger_scsi.ValidEntries
 	    && !found_match; i++, scsi_trigger++) {
 		if (scsi_trigger->SenseKey != sense_key)
 			continue;
 		if (!(scsi_trigger->ASC == 0xFF || scsi_trigger->ASC == asc))
 			continue;
 		if (!(scsi_trigger->ASCQ == 0xFF || scsi_trigger->ASCQ == ascq))
 			continue;
 		found_match = 1;
 		ioc->diag_trigger_active = 1;
 	}
 	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

 	if (!found_match)
 		goto out;

 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
 				    __func__));
 	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
 	event_data.trigger_type = MPT3SAS_TRIGGER_SCSI;
 	event_data.u.scsi.SenseKey = sense_key;
 	event_data.u.scsi.ASC = asc;
 	event_data.u.scsi.ASCQ = ascq;
 	mpt3sas_send_trigger_data_event(ioc, &event_data);
  out:
 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
 					 __func__));
 }

 /**
  * mpt3sas_trigger_mpi - MPI trigger handler
  * @ioc: per adapter object
  * @ioc_status: ?
  * @loginfo: ?
  *
  */
 void
 mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status, u32 loginfo)
 {
 	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
 	struct SL_WH_MPI_TRIGGER_T *mpi_trigger;
 	int i;
 	unsigned long flags;
 	u8 found_match;

 	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

 	/* check to see if trace buffers are currently registered */
 	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

 	/* check to see if trace buffers are currently released */
 	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
 	    MPT3_DIAG_BUFFER_IS_RELEASED) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		return;
 	}

 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: enter - ioc_status = 0x%04x, loginfo = 0x%08x\n",
 				    __func__, ioc_status, loginfo));

 	/* don't send trigger if an trigger is currently active */
 	if (ioc->diag_trigger_active) {
 		spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
 		goto out;
 	}

 	/* check for the trigger condition */
 	mpi_trigger = ioc->diag_trigger_mpi.MPITriggerEntry;
 	for (i = 0 , found_match = 0; i < ioc->diag_trigger_mpi.ValidEntries
 	    && !found_match; i++, mpi_trigger++) {
 		if (mpi_trigger->IOCStatus != ioc_status)
 			continue;
 		if (!(mpi_trigger->IocLogInfo == 0xFFFFFFFF ||
 		    mpi_trigger->IocLogInfo == loginfo))
 			continue;
 		found_match = 1;
 		ioc->diag_trigger_active = 1;
 	}
 	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

 	if (!found_match)
 		goto out;

 	dTriggerDiagPrintk(ioc,
 			   ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
 				    __func__));
 	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
 	event_data.trigger_type = MPT3SAS_TRIGGER_MPI;
 	event_data.u.mpi.IOCStatus = ioc_status;
 	event_data.u.mpi.IocLogInfo = loginfo;
 	mpt3sas_send_trigger_data_event(ioc, &event_data);
  out:
 	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
 					 __func__));
 }
	/*
	* This module provides common API to set Diagnostic trigger for MPT
	* (Message Passing Technology) based controllers
	*
	* This code is based on drivers/scsi/mpt3sas/mpt3sas_trigger_diag.c
	* Copyright (C) 2012-2014 LSI Corporation
	* Copyright (C) 2013-2014 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/compat.h>
	#include <linux/poll.h>

	#include <linux/io.h>
	#include <linux/uaccess.h>

	#include "mpt3sas_base.h"

	/**
	* _mpt3sas_raise_sigio - notifiy app
	* @ioc: per adapter object
	* @event_data: ?
	*/
	static void
	_mpt3sas_raise_sigio(struct MPT3SAS_ADAPTER *ioc,
	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
	{
	Mpi2EventNotificationReply_t *mpi_reply;
	u16 sz, event_data_sz;
	unsigned long flags;

	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: enter\n", __func__));

	sz = offsetof(Mpi2EventNotificationReply_t, EventData) +
	sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4;
	mpi_reply = kzalloc(sz, GFP_KERNEL);
	if (!mpi_reply)
	goto out;
	mpi_reply->Event = cpu_to_le16(MPI3_EVENT_DIAGNOSTIC_TRIGGER_FIRED);
	event_data_sz = (sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T) + 4) / 4;
	mpi_reply->EventDataLength = cpu_to_le16(event_data_sz);
	memcpy(&mpi_reply->EventData, event_data,
	sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: add to driver event log\n",
	__func__));
	mpt3sas_ctl_add_to_event_log(ioc, mpi_reply);
	kfree(mpi_reply);
	out:

	/* clearing the diag_trigger_active flag */
	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);
	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: clearing diag_trigger_active flag\n",
	__func__));
	ioc->diag_trigger_active = 0;
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
	__func__));
	}

	/**
	* mpt3sas_process_trigger_data - process the event data for the trigger
	* @ioc: per adapter object
	* @event_data: ?
	*/
	void
	mpt3sas_process_trigger_data(struct MPT3SAS_ADAPTER *ioc,
	struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data)
	{
	u8 issue_reset = 0;
	u32 trig_data = (u32 )&event_data->u.master;

	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: enter\n", __func__));

	/* release the diag buffer trace */
	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_RELEASED) == 0) {
	/*
	* add a log message so that user knows which event caused
	* the release
	*/
	ioc_info(ioc,
	"%s: Releasing the trace buffer. Trigger_Type 0x%08x, Data[0] 0x%08x, Data[1] 0x%08x\n",
	__func__, event_data->trigger_type,
	trig_data[0], trig_data[1]);
	mpt3sas_send_diag_release(ioc, MPI2_DIAG_BUF_TYPE_TRACE,
	&issue_reset);
	}

	_mpt3sas_raise_sigio(ioc, event_data);

	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
	__func__));
	}

	/**
	* mpt3sas_trigger_master - Master trigger handler
	* @ioc: per adapter object
	* @trigger_bitmask:
	*
	*/
	void
	mpt3sas_trigger_master(struct MPT3SAS_ADAPTER *ioc, u32 trigger_bitmask)
	{
	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
	unsigned long flags;
	u8 found_match = 0;

	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

	if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT \|\|
	trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
	goto by_pass_checks;

	/* check to see if trace buffers are currently registered */
	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	/* check to see if trace buffers are currently released */
	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_RELEASED) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	by_pass_checks:

	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: enter - trigger_bitmask = 0x%08x\n",
	__func__, trigger_bitmask));

	/* don't send trigger if an trigger is currently active */
	if (ioc->diag_trigger_active) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	goto out;
	}

	/* check for the trigger condition */
	if (ioc->diag_trigger_master.MasterData & trigger_bitmask) {
	found_match = 1;
	ioc->diag_trigger_active = 1;
	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
	__func__));
	}
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

	if (!found_match)
	goto out;

	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
	event_data.trigger_type = MPT3SAS_TRIGGER_MASTER;
	event_data.u.master.MasterData = trigger_bitmask;

	if (trigger_bitmask & MASTER_TRIGGER_FW_FAULT \|\|
	trigger_bitmask & MASTER_TRIGGER_ADAPTER_RESET)
	_mpt3sas_raise_sigio(ioc, &event_data);
	else
	mpt3sas_send_trigger_data_event(ioc, &event_data);

	out:
	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
	__func__));
	}

	/**
	* mpt3sas_trigger_event - Event trigger handler
	* @ioc: per adapter object
	* @event: ?
	* @log_entry_qualifier: ?
	*
	*/
	void
	mpt3sas_trigger_event(struct MPT3SAS_ADAPTER *ioc, u16 event,
	u16 log_entry_qualifier)
	{
	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
	struct SL_WH_EVENT_TRIGGER_T *event_trigger;
	int i;
	unsigned long flags;
	u8 found_match;

	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

	/* check to see if trace buffers are currently registered */
	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	/* check to see if trace buffers are currently released */
	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_RELEASED) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: enter - event = 0x%04x, log_entry_qualifier = 0x%04x\n",
	__func__, event, log_entry_qualifier));

	/* don't send trigger if an trigger is currently active */
	if (ioc->diag_trigger_active) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	goto out;
	}

	/* check for the trigger condition */
	event_trigger = ioc->diag_trigger_event.EventTriggerEntry;
	for (i = 0 , found_match = 0; i < ioc->diag_trigger_event.ValidEntries
	&& !found_match; i++, event_trigger++) {
	if (event_trigger->EventValue != event)
	continue;
	if (event == MPI2_EVENT_LOG_ENTRY_ADDED) {
	if (event_trigger->LogEntryQualifier ==
	log_entry_qualifier)
	found_match = 1;
	continue;
	}
	found_match = 1;
	ioc->diag_trigger_active = 1;
	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
	__func__));
	}
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

	if (!found_match)
	goto out;

	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
	__func__));
	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
	event_data.trigger_type = MPT3SAS_TRIGGER_EVENT;
	event_data.u.event.EventValue = event;
	event_data.u.event.LogEntryQualifier = log_entry_qualifier;
	mpt3sas_send_trigger_data_event(ioc, &event_data);
	out:
	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
	__func__));
	}

	/**
	* mpt3sas_trigger_scsi - SCSI trigger handler
	* @ioc: per adapter object
	* @sense_key: ?
	* @asc: ?
	* @ascq: ?
	*
	*/
	void
	mpt3sas_trigger_scsi(struct MPT3SAS_ADAPTER *ioc, u8 sense_key, u8 asc,
	u8 ascq)
	{
	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
	struct SL_WH_SCSI_TRIGGER_T *scsi_trigger;
	int i;
	unsigned long flags;
	u8 found_match;

	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

	/* check to see if trace buffers are currently registered */
	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	/* check to see if trace buffers are currently released */
	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_RELEASED) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: enter - sense_key = 0x%02x, asc = 0x%02x, ascq = 0x%02x\n",
	__func__, sense_key, asc, ascq));

	/* don't send trigger if an trigger is currently active */
	if (ioc->diag_trigger_active) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	goto out;
	}

	/* check for the trigger condition */
	scsi_trigger = ioc->diag_trigger_scsi.SCSITriggerEntry;
	for (i = 0 , found_match = 0; i < ioc->diag_trigger_scsi.ValidEntries
	&& !found_match; i++, scsi_trigger++) {
	if (scsi_trigger->SenseKey != sense_key)
	continue;
	if (!(scsi_trigger->ASC == 0xFF \|\| scsi_trigger->ASC == asc))
	continue;
	if (!(scsi_trigger->ASCQ == 0xFF \|\| scsi_trigger->ASCQ == ascq))
	continue;
	found_match = 1;
	ioc->diag_trigger_active = 1;
	}
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

	if (!found_match)
	goto out;

	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
	__func__));
	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
	event_data.trigger_type = MPT3SAS_TRIGGER_SCSI;
	event_data.u.scsi.SenseKey = sense_key;
	event_data.u.scsi.ASC = asc;
	event_data.u.scsi.ASCQ = ascq;
	mpt3sas_send_trigger_data_event(ioc, &event_data);
	out:
	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
	__func__));
	}

	/**
	* mpt3sas_trigger_mpi - MPI trigger handler
	* @ioc: per adapter object
	* @ioc_status: ?
	* @loginfo: ?
	*
	*/
	void
	mpt3sas_trigger_mpi(struct MPT3SAS_ADAPTER *ioc, u16 ioc_status, u32 loginfo)
	{
	struct SL_WH_TRIGGERS_EVENT_DATA_T event_data;
	struct SL_WH_MPI_TRIGGER_T *mpi_trigger;
	int i;
	unsigned long flags;
	u8 found_match;

	spin_lock_irqsave(&ioc->diag_trigger_lock, flags);

	/* check to see if trace buffers are currently registered */
	if ((ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_REGISTERED) == 0) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	/* check to see if trace buffers are currently released */
	if (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] &
	MPT3_DIAG_BUFFER_IS_RELEASED) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	return;
	}

	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: enter - ioc_status = 0x%04x, loginfo = 0x%08x\n",
	__func__, ioc_status, loginfo));

	/* don't send trigger if an trigger is currently active */
	if (ioc->diag_trigger_active) {
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);
	goto out;
	}

	/* check for the trigger condition */
	mpi_trigger = ioc->diag_trigger_mpi.MPITriggerEntry;
	for (i = 0 , found_match = 0; i < ioc->diag_trigger_mpi.ValidEntries
	&& !found_match; i++, mpi_trigger++) {
	if (mpi_trigger->IOCStatus != ioc_status)
	continue;
	if (!(mpi_trigger->IocLogInfo == 0xFFFFFFFF \|\|
	mpi_trigger->IocLogInfo == loginfo))
	continue;
	found_match = 1;
	ioc->diag_trigger_active = 1;
	}
	spin_unlock_irqrestore(&ioc->diag_trigger_lock, flags);

	if (!found_match)
	goto out;

	dTriggerDiagPrintk(ioc,
	ioc_info(ioc, "%s: setting diag_trigger_active flag\n",
	__func__));
	memset(&event_data, 0, sizeof(struct SL_WH_TRIGGERS_EVENT_DATA_T));
	event_data.trigger_type = MPT3SAS_TRIGGER_MPI;
	event_data.u.mpi.IOCStatus = ioc_status;
	event_data.u.mpi.IocLogInfo = loginfo;
	mpt3sas_send_trigger_data_event(ioc, &event_data);
	out:
	dTriggerDiagPrintk(ioc, ioc_info(ioc, "%s: exit\n",
	__func__));
	}