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Commit bf816235 authored by Kei Tokunaga's avatar Kei Tokunaga Committed by James Bottomley
Browse files

[SCSI] add scsi trace core functions and put trace points 



Signed-off-by: default avatarXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: default avatarTomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
Signed-off-by: default avatarKei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 5a2e3995

drivers/scsi/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -162,6 +162,7 @@ scsi_mod-y += scsi_scan.o scsi_sysfs.o scsi_devinfo.o 
scsi_mod-$(CONFIG_SCSI_NETLINK)	+= scsi_netlink.o

scsi_mod-$(CONFIG_SYSCTL)	+= scsi_sysctl.o

scsi_mod-$(CONFIG_SCSI_PROC_FS)	+= scsi_proc.o

scsi_mod-y			+= scsi_trace.o



scsi_tgt-y			+= scsi_tgt_lib.o scsi_tgt_if.o

drivers/scsi/scsi.c

+6 −0
Original line number Diff line number Diff line
@@ -67,6 +67,9 @@ 
#include "scsi_priv.h"

#include "scsi_logging.h"



#define CREATE_TRACE_POINTS

#include <trace/events/scsi.h>



static void scsi_done(struct scsi_cmnd *cmd);



/*
@@ -747,10 +750,12 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd) 
		cmd->result = (DID_NO_CONNECT << 16);

		scsi_done(cmd);

	} else {

		trace_scsi_dispatch_cmd_start(cmd);

		rtn = host->hostt->queuecommand(cmd, scsi_done);

	}

	spin_unlock_irqrestore(host->host_lock, flags);

	if (rtn) {

		trace_scsi_dispatch_cmd_error(cmd, rtn);

		if (rtn != SCSI_MLQUEUE_DEVICE_BUSY &&

		    rtn != SCSI_MLQUEUE_TARGET_BUSY)

			rtn = SCSI_MLQUEUE_HOST_BUSY;
@@ -781,6 +786,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd) 
 */

static void scsi_done(struct scsi_cmnd *cmd)

{

	trace_scsi_dispatch_cmd_done(cmd);

	blk_complete_request(cmd->request);

}

drivers/scsi/scsi_error.c

+4 −0
Original line number Diff line number Diff line
@@ -39,6 +39,8 @@ 
#include "scsi_logging.h"

#include "scsi_transport_api.h"



#include <trace/events/scsi.h>



#define SENSE_TIMEOUT		(10*HZ)



/*
@@ -52,6 +54,7 @@ 
void scsi_eh_wakeup(struct Scsi_Host *shost)

{

	if (shost->host_busy == shost->host_failed) {

		trace_scsi_eh_wakeup(shost);

		wake_up_process(shost->ehandler);

		SCSI_LOG_ERROR_RECOVERY(5,

				printk("Waking error handler thread\n"));
@@ -127,6 +130,7 @@ enum blk_eh_timer_return scsi_times_out(struct request *req) 
	struct scsi_cmnd *scmd = req->special;

	enum blk_eh_timer_return rtn = BLK_EH_NOT_HANDLED;



	trace_scsi_dispatch_cmd_timeout(scmd);

	scsi_log_completion(scmd, TIMEOUT_ERROR);



	if (scmd->device->host->transportt->eh_timed_out)

drivers/scsi/scsi_trace.c

0 → 100644
+185 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2010 FUJITSU LIMITED

 * Copyright (C) 2010 Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * 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.

 *

 * 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 St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#include <linux/kernel.h>

#include <linux/trace_seq.h>

#include <trace/events/scsi.h>



#define SERVICE_ACTION(cdb) ((cdb[8] << 8) | cdb[9])



static const char *

scsi_trace_misc(struct trace_seq *, unsigned char *, int);



static const char *

scsi_trace_rw6(struct trace_seq *p, unsigned char *cdb, int len)

{

	const char *ret = p->buffer + p->len;

	sector_t lba = 0, txlen = 0;



	lba |= ((cdb[1] & 0x1F) << 16);

	lba |=  (cdb[2] << 8);

	lba |=   cdb[3];

	txlen = cdb[4];



	trace_seq_printf(p, "lba=%llu txlen=%llu",

			 (unsigned long long)lba, (unsigned long long)txlen);

	trace_seq_putc(p, 0);



	return ret;

}



static const char *

scsi_trace_rw10(struct trace_seq *p, unsigned char *cdb, int len)

{

	const char *ret = p->buffer + p->len;

	sector_t lba = 0, txlen = 0;



	lba |= (cdb[2] << 24);

	lba |= (cdb[3] << 16);

	lba |= (cdb[4] << 8);

	lba |=  cdb[5];

	txlen |= (cdb[7] << 8);

	txlen |=  cdb[8];



	trace_seq_printf(p, "lba=%llu txlen=%llu",

			 (unsigned long long)lba, (unsigned long long)txlen);

	trace_seq_putc(p, 0);



	return ret;

}



static const char *

scsi_trace_rw12(struct trace_seq *p, unsigned char *cdb, int len)

{

	const char *ret = p->buffer + p->len;

	sector_t lba = 0, txlen = 0;



	lba |= (cdb[2] << 24);

	lba |= (cdb[3] << 16);

	lba |= (cdb[4] << 8);

	lba |=  cdb[5];

	txlen |= (cdb[6] << 24);

	txlen |= (cdb[7] << 16);

	txlen |= (cdb[8] << 8);

	txlen |=  cdb[9];



	trace_seq_printf(p, "lba=%llu txlen=%llu",

			 (unsigned long long)lba, (unsigned long long)txlen);

	trace_seq_putc(p, 0);



	return ret;

}



static const char *

scsi_trace_rw16(struct trace_seq *p, unsigned char *cdb, int len)

{

	const char *ret = p->buffer + p->len;

	sector_t lba = 0, txlen = 0;



	lba |= ((u64)cdb[2] << 56);

	lba |= ((u64)cdb[3] << 48);

	lba |= ((u64)cdb[4] << 40);

	lba |= ((u64)cdb[5] << 32);

	lba |= (cdb[6] << 24);

	lba |= (cdb[7] << 16);

	lba |= (cdb[8] << 8);

	lba |=  cdb[9];

	txlen |= (cdb[10] << 24);

	txlen |= (cdb[11] << 16);

	txlen |= (cdb[12] << 8);

	txlen |=  cdb[13];



	trace_seq_printf(p, "lba=%llu txlen=%llu",

			 (unsigned long long)lba, (unsigned long long)txlen);

	trace_seq_putc(p, 0);



	return ret;

}



static const char *

scsi_trace_rw32(struct trace_seq *p, unsigned char *cdb, int len)

{

	const char *ret = p->buffer + p->len;

	sector_t lba = 0, txlen = 0;



	lba |= ((u64)cdb[12] << 56);

	lba |= ((u64)cdb[13] << 48);

	lba |= ((u64)cdb[14] << 40);

	lba |= ((u64)cdb[15] << 32);

	lba |= (cdb[16] << 24);

	lba |= (cdb[17] << 16);

	lba |= (cdb[18] << 8);

	lba |=  cdb[19];

	txlen |= (cdb[28] << 24);

	txlen |= (cdb[29] << 16);

	txlen |= (cdb[30] << 8);

	txlen |=  cdb[31];



	trace_seq_printf(p, "%s_32 lba=%llu txlen=%llu",

			(SERVICE_ACTION(cdb) == READ_32 ? "READ" : "WRITE"),

			(unsigned long long)lba, (unsigned long long)txlen);



	trace_seq_putc(p, 0);



	return ret;

}



static const char *

scsi_trace_varlen(struct trace_seq *p, unsigned char *cdb, int len)

{

	switch (SERVICE_ACTION(cdb)) {

	case READ_32:

	case WRITE_32:

		return scsi_trace_rw32(p, cdb, len);

	default:

		return scsi_trace_misc(p, cdb, len);

	}

}



static const char *

scsi_trace_misc(struct trace_seq *p, unsigned char *cdb, int len)

{

	const char *ret = p->buffer + p->len;



	trace_seq_printf(p, "-");

	trace_seq_putc(p, 0);



	return ret;

}



const char *

scsi_trace_parse_cdb(struct trace_seq *p, unsigned char *cdb, int len)

{

	switch (cdb[0]) {

	case READ_6:

	case WRITE_6:

		return scsi_trace_rw6(p, cdb, len);

	case READ_10:

	case WRITE_10:

		return scsi_trace_rw10(p, cdb, len);

	case READ_12:

	case WRITE_12:

		return scsi_trace_rw12(p, cdb, len);

	case READ_16:

	case WRITE_16:

		return scsi_trace_rw16(p, cdb, len);

	case VARIABLE_LENGTH_CMD:

		return scsi_trace_varlen(p, cdb, len);

	default:

		return scsi_trace_misc(p, cdb, len);

	}

}

include/trace/events/scsi.h

0 → 100644
+328 −0
Original line number Diff line number Diff line 
#undef TRACE_SYSTEM

#define TRACE_SYSTEM scsi



#if !defined(_TRACE_SCSI_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_SCSI_H



#include <scsi/scsi_cmnd.h>

#include <scsi/scsi_host.h>

#include <linux/tracepoint.h>

#include <linux/trace_seq.h>



#define scsi_opcode_name(opcode)	{ opcode, #opcode }

#define show_opcode_name(val)					\

	__print_symbolic(val,					\

		scsi_opcode_name(TEST_UNIT_READY),		\

		scsi_opcode_name(REZERO_UNIT),			\

		scsi_opcode_name(REQUEST_SENSE),		\

		scsi_opcode_name(FORMAT_UNIT),			\

		scsi_opcode_name(READ_BLOCK_LIMITS),		\

		scsi_opcode_name(REASSIGN_BLOCKS),		\

		scsi_opcode_name(INITIALIZE_ELEMENT_STATUS),	\

		scsi_opcode_name(READ_6),			\

		scsi_opcode_name(WRITE_6),			\

		scsi_opcode_name(SEEK_6),			\

		scsi_opcode_name(READ_REVERSE),			\

		scsi_opcode_name(WRITE_FILEMARKS),		\

		scsi_opcode_name(SPACE),			\

		scsi_opcode_name(INQUIRY),			\

		scsi_opcode_name(RECOVER_BUFFERED_DATA),	\

		scsi_opcode_name(MODE_SELECT),			\

		scsi_opcode_name(RESERVE),			\

		scsi_opcode_name(RELEASE),			\

		scsi_opcode_name(COPY),				\

		scsi_opcode_name(ERASE),			\

		scsi_opcode_name(MODE_SENSE),			\

		scsi_opcode_name(START_STOP),			\

		scsi_opcode_name(RECEIVE_DIAGNOSTIC),		\

		scsi_opcode_name(SEND_DIAGNOSTIC),		\

		scsi_opcode_name(ALLOW_MEDIUM_REMOVAL),		\

		scsi_opcode_name(SET_WINDOW),			\

		scsi_opcode_name(READ_CAPACITY),		\

		scsi_opcode_name(READ_10),			\

		scsi_opcode_name(WRITE_10),			\

		scsi_opcode_name(SEEK_10),			\

		scsi_opcode_name(POSITION_TO_ELEMENT),		\

		scsi_opcode_name(WRITE_VERIFY),			\

		scsi_opcode_name(VERIFY),			\

		scsi_opcode_name(SEARCH_HIGH),			\

		scsi_opcode_name(SEARCH_EQUAL),			\

		scsi_opcode_name(SEARCH_LOW),			\

		scsi_opcode_name(SET_LIMITS),			\

		scsi_opcode_name(PRE_FETCH),			\

		scsi_opcode_name(READ_POSITION),		\

		scsi_opcode_name(SYNCHRONIZE_CACHE),		\

		scsi_opcode_name(LOCK_UNLOCK_CACHE),		\

		scsi_opcode_name(READ_DEFECT_DATA),		\

		scsi_opcode_name(MEDIUM_SCAN),			\

		scsi_opcode_name(COMPARE),			\

		scsi_opcode_name(COPY_VERIFY),			\

		scsi_opcode_name(WRITE_BUFFER),			\

		scsi_opcode_name(READ_BUFFER),			\

		scsi_opcode_name(UPDATE_BLOCK),			\

		scsi_opcode_name(READ_LONG),			\

		scsi_opcode_name(WRITE_LONG),			\

		scsi_opcode_name(CHANGE_DEFINITION),		\

		scsi_opcode_name(WRITE_SAME),			\

		scsi_opcode_name(UNMAP),			\

		scsi_opcode_name(READ_TOC),			\

		scsi_opcode_name(LOG_SELECT),			\

		scsi_opcode_name(LOG_SENSE),			\

		scsi_opcode_name(XDWRITEREAD_10),		\

		scsi_opcode_name(MODE_SELECT_10),		\

		scsi_opcode_name(RESERVE_10),			\

		scsi_opcode_name(RELEASE_10),			\

		scsi_opcode_name(MODE_SENSE_10),		\

		scsi_opcode_name(PERSISTENT_RESERVE_IN),	\

		scsi_opcode_name(PERSISTENT_RESERVE_OUT),	\

		scsi_opcode_name(VARIABLE_LENGTH_CMD),		\

		scsi_opcode_name(REPORT_LUNS),			\

		scsi_opcode_name(MAINTENANCE_IN),		\

		scsi_opcode_name(MAINTENANCE_OUT),		\

		scsi_opcode_name(MOVE_MEDIUM),			\

		scsi_opcode_name(EXCHANGE_MEDIUM),		\

		scsi_opcode_name(READ_12),			\

		scsi_opcode_name(WRITE_12),			\

		scsi_opcode_name(WRITE_VERIFY_12),		\

		scsi_opcode_name(SEARCH_HIGH_12),		\

		scsi_opcode_name(SEARCH_EQUAL_12),		\

		scsi_opcode_name(SEARCH_LOW_12),		\

		scsi_opcode_name(READ_ELEMENT_STATUS),		\

		scsi_opcode_name(SEND_VOLUME_TAG),		\

		scsi_opcode_name(WRITE_LONG_2),			\

		scsi_opcode_name(READ_16),			\

		scsi_opcode_name(WRITE_16),			\

		scsi_opcode_name(VERIFY_16),			\

		scsi_opcode_name(WRITE_SAME_16),		\

		scsi_opcode_name(SERVICE_ACTION_IN),		\

		scsi_opcode_name(SAI_READ_CAPACITY_16),		\

		scsi_opcode_name(SAI_GET_LBA_STATUS),		\

		scsi_opcode_name(MI_REPORT_TARGET_PGS),		\

		scsi_opcode_name(MO_SET_TARGET_PGS),		\

		scsi_opcode_name(READ_32),			\

		scsi_opcode_name(WRITE_32),			\

		scsi_opcode_name(WRITE_SAME_32),		\

		scsi_opcode_name(ATA_16),			\

		scsi_opcode_name(ATA_12))



#define scsi_hostbyte_name(result)	{ result, #result }

#define show_hostbyte_name(val)					\

	__print_symbolic(val,					\

		scsi_hostbyte_name(DID_OK),			\

		scsi_hostbyte_name(DID_NO_CONNECT),		\

		scsi_hostbyte_name(DID_BUS_BUSY),		\

		scsi_hostbyte_name(DID_TIME_OUT),		\

		scsi_hostbyte_name(DID_BAD_TARGET),		\

		scsi_hostbyte_name(DID_ABORT),			\

		scsi_hostbyte_name(DID_PARITY),			\

		scsi_hostbyte_name(DID_ERROR),			\

		scsi_hostbyte_name(DID_RESET),			\

		scsi_hostbyte_name(DID_BAD_INTR),		\

		scsi_hostbyte_name(DID_PASSTHROUGH),		\

		scsi_hostbyte_name(DID_SOFT_ERROR),		\

		scsi_hostbyte_name(DID_IMM_RETRY),		\

		scsi_hostbyte_name(DID_REQUEUE),		\

		scsi_hostbyte_name(DID_TRANSPORT_DISRUPTED),	\

		scsi_hostbyte_name(DID_TRANSPORT_FAILFAST))



#define scsi_driverbyte_name(result)	{ result, #result }

#define show_driverbyte_name(val)				\

	__print_symbolic(val,					\

		scsi_driverbyte_name(DRIVER_OK),		\

		scsi_driverbyte_name(DRIVER_BUSY),		\

		scsi_driverbyte_name(DRIVER_SOFT),		\

		scsi_driverbyte_name(DRIVER_MEDIA),		\

		scsi_driverbyte_name(DRIVER_ERROR),		\

		scsi_driverbyte_name(DRIVER_INVALID),		\

		scsi_driverbyte_name(DRIVER_TIMEOUT),		\

		scsi_driverbyte_name(DRIVER_HARD),		\

		scsi_driverbyte_name(DRIVER_SENSE))



#define scsi_msgbyte_name(result)	{ result, #result }

#define show_msgbyte_name(val)					\

	__print_symbolic(val,					\

		scsi_msgbyte_name(COMMAND_COMPLETE),		\

		scsi_msgbyte_name(EXTENDED_MESSAGE),		\

		scsi_msgbyte_name(SAVE_POINTERS),		\

		scsi_msgbyte_name(RESTORE_POINTERS),		\

		scsi_msgbyte_name(DISCONNECT),			\

		scsi_msgbyte_name(INITIATOR_ERROR),		\

		scsi_msgbyte_name(ABORT_TASK_SET),		\

		scsi_msgbyte_name(MESSAGE_REJECT),		\

		scsi_msgbyte_name(NOP),				\

		scsi_msgbyte_name(MSG_PARITY_ERROR),		\

		scsi_msgbyte_name(LINKED_CMD_COMPLETE),		\

		scsi_msgbyte_name(LINKED_FLG_CMD_COMPLETE),	\

		scsi_msgbyte_name(TARGET_RESET),		\

		scsi_msgbyte_name(ABORT_TASK),			\

		scsi_msgbyte_name(CLEAR_TASK_SET),		\

		scsi_msgbyte_name(INITIATE_RECOVERY),		\

		scsi_msgbyte_name(RELEASE_RECOVERY),		\

		scsi_msgbyte_name(CLEAR_ACA),			\

		scsi_msgbyte_name(LOGICAL_UNIT_RESET),		\

		scsi_msgbyte_name(SIMPLE_QUEUE_TAG),		\

		scsi_msgbyte_name(HEAD_OF_QUEUE_TAG),		\

		scsi_msgbyte_name(ORDERED_QUEUE_TAG),		\

		scsi_msgbyte_name(IGNORE_WIDE_RESIDUE),		\

		scsi_msgbyte_name(ACA),				\

		scsi_msgbyte_name(QAS_REQUEST),			\

		scsi_msgbyte_name(BUS_DEVICE_RESET),		\

		scsi_msgbyte_name(ABORT))



#define scsi_statusbyte_name(result)	{ result, #result }

#define show_statusbyte_name(val)				\

	__print_symbolic(val,					\

		scsi_statusbyte_name(SAM_STAT_GOOD),		\

		scsi_statusbyte_name(SAM_STAT_CHECK_CONDITION),	\

		scsi_statusbyte_name(SAM_STAT_CONDITION_MET),	\

		scsi_statusbyte_name(SAM_STAT_BUSY),		\

		scsi_statusbyte_name(SAM_STAT_INTERMEDIATE),	\

		scsi_statusbyte_name(SAM_STAT_INTERMEDIATE_CONDITION_MET), \

		scsi_statusbyte_name(SAM_STAT_RESERVATION_CONFLICT),	\

		scsi_statusbyte_name(SAM_STAT_COMMAND_TERMINATED),	\

		scsi_statusbyte_name(SAM_STAT_TASK_SET_FULL),	\

		scsi_statusbyte_name(SAM_STAT_ACA_ACTIVE),	\

		scsi_statusbyte_name(SAM_STAT_TASK_ABORTED))



const char *scsi_trace_parse_cdb(struct trace_seq*, unsigned char*, int);

#define __parse_cdb(cdb, len) scsi_trace_parse_cdb(p, cdb, len)



TRACE_EVENT(scsi_dispatch_cmd_start,



	TP_PROTO(struct scsi_cmnd *cmd),



	TP_ARGS(cmd),



	TP_STRUCT__entry(

		__field( unsigned int,	host_no	)

		__field( unsigned int,	channel	)

		__field( unsigned int,	id	)

		__field( unsigned int,	lun	)

		__field( unsigned int,	opcode	)

		__field( unsigned int,	cmd_len )

		__dynamic_array(unsigned char,	cmnd, cmd->cmd_len)

	),



	TP_fast_assign(

		__entry->host_no	= cmd->device->host->host_no;

		__entry->channel	= cmd->device->channel;

		__entry->id		= cmd->device->id;

		__entry->lun		= cmd->device->lun;

		__entry->opcode		= cmd->cmnd[0];

		__entry->cmd_len	= cmd->cmd_len;

		memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);

	),



	TP_printk("host_no=%u channel=%u id=%u lun=%u cmnd=(%s %s raw=%s)",

		  __entry->host_no, __entry->channel, __entry->id,

		  __entry->lun, show_opcode_name(__entry->opcode),

		  __parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),

		  __print_hex(__get_dynamic_array(cmnd), __entry->cmd_len))

);



TRACE_EVENT(scsi_dispatch_cmd_error,



	TP_PROTO(struct scsi_cmnd *cmd, int rtn),



	TP_ARGS(cmd, rtn),



	TP_STRUCT__entry(

		__field( unsigned int,	host_no	)

		__field( unsigned int,	channel	)

		__field( unsigned int,	id	)

		__field( unsigned int,	lun	)

		__field( int,		rtn	)

		__field( unsigned int,	opcode	)

		__field( unsigned int,	cmd_len )

		__dynamic_array(unsigned char,	cmnd, cmd->cmd_len)

	),



	TP_fast_assign(

		__entry->host_no	= cmd->device->host->host_no;

		__entry->channel	= cmd->device->channel;

		__entry->id		= cmd->device->id;

		__entry->lun		= cmd->device->lun;

		__entry->rtn		= rtn;

		__entry->opcode		= cmd->cmnd[0];

		__entry->cmd_len	= cmd->cmd_len;

		memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);

	),



	TP_printk("host_no=%u channel=%u id=%u lun=%u cmnd=(%s %s raw=%s)"

		  " rtn=%d",

		  __entry->host_no, __entry->channel, __entry->id,

		  __entry->lun, show_opcode_name(__entry->opcode),

		  __parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),

		  __print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),

		  __entry->rtn)

);



DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,



	TP_PROTO(struct scsi_cmnd *cmd),



	TP_ARGS(cmd),



	TP_STRUCT__entry(

		__field( unsigned int,	host_no	)

		__field( unsigned int,	channel	)

		__field( unsigned int,	id	)

		__field( unsigned int,	lun	)

		__field( int,		result	)

		__field( unsigned int,	opcode	)

		__field( unsigned int,	cmd_len )

		__dynamic_array(unsigned char,	cmnd, cmd->cmd_len)

	),



	TP_fast_assign(

		__entry->host_no	= cmd->device->host->host_no;

		__entry->channel	= cmd->device->channel;

		__entry->id		= cmd->device->id;

		__entry->lun		= cmd->device->lun;

		__entry->result		= cmd->result;

		__entry->opcode		= cmd->cmnd[0];

		__entry->cmd_len	= cmd->cmd_len;

		memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);

	),



	TP_printk("host_no=%u channel=%u id=%u lun=%u cmnd=(%s %s raw=%s) "

		  "result=(driver=%s host=%s message=%s status=%s)",

		  __entry->host_no, __entry->channel, __entry->id,

		  __entry->lun, show_opcode_name(__entry->opcode),

		  __parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),

		  __print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),

		  show_driverbyte_name(((__entry->result) >> 24) & 0xff),

		  show_hostbyte_name(((__entry->result) >> 16) & 0xff),

		  show_msgbyte_name(((__entry->result) >> 8) & 0xff),

		  show_statusbyte_name(__entry->result & 0xff))

);



DEFINE_EVENT(scsi_cmd_done_timeout_template, scsi_dispatch_cmd_done,

	     TP_PROTO(struct scsi_cmnd *cmd),

	     TP_ARGS(cmd));



DEFINE_EVENT(scsi_cmd_done_timeout_template, scsi_dispatch_cmd_timeout,

	     TP_PROTO(struct scsi_cmnd *cmd),

	     TP_ARGS(cmd));



TRACE_EVENT(scsi_eh_wakeup,



	TP_PROTO(struct Scsi_Host *shost),



	TP_ARGS(shost),



	TP_STRUCT__entry(

		__field( unsigned int,	host_no	)

	),



	TP_fast_assign(

		__entry->host_no	= shost->host_no;

	),



	TP_printk("host_no=%u", __entry->host_no)

);



#endif /*  _TRACE_SCSI_H */



/* This part must be outside protection */

#include <trace/define_trace.h>