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Date: Mon, 16 Apr 2018 14:31:49 +0000
From: "Bean Huo (beanhuo)" <beanhuo@...ron.com>
To: Steven Rostedt <rostedt@...dmis.org>,
"axboe@...nel.dk" <axboe@...nel.dk>,
"jejb@...ux.vnet.ibm.com" <jejb@...ux.vnet.ibm.com>,
"martin.petersen@...cle.com" <martin.petersen@...cle.com>
CC: "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"mingo@...had.com" <mingo@...had.com>,
"Bart.VanAssche@...disk.com" <Bart.VanAssche@...disk.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"Bean Huo (beanhuo)" <beanhuo@...ron.com>,
"rajatja@...gle.com" <rajatja@...gle.com>
Subject: [RESEND PATCH v1 1/2] trace: events: scsi: Add tag in SCSI trace
events
Print the request tag along with other information
while tracing a command.
Signed-off-by: Bean Huo <beanhuo@...ron.com>
---
include/trace/events/scsi.h | 20 +++++++++++++-------
1 file changed, 13 insertions(+), 7 deletions(-)
diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
index f624969..a4ada90 100644
--- a/include/trace/events/scsi.h
+++ b/include/trace/events/scsi.h
@@ -210,6 +210,7 @@ TRACE_EVENT(scsi_dispatch_cmd_start,
__field( unsigned int, lun )
__field( unsigned int, opcode )
__field( unsigned int, cmd_len )
+ __field( int, tag )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
__field( unsigned char, prot_op )
@@ -223,6 +224,7 @@ TRACE_EVENT(scsi_dispatch_cmd_start,
__entry->lun = cmd->device->lun;
__entry->opcode = cmd->cmnd[0];
__entry->cmd_len = cmd->cmd_len;
+ __entry->tag = cmd->request->tag;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
__entry->prot_op = scsi_get_prot_op(cmd);
@@ -230,10 +232,10 @@ TRACE_EVENT(scsi_dispatch_cmd_start,
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u prot_sgl=%u" \
- " prot_op=%s cmnd=(%s %s raw=%s)",
+ " prot_op=%s tag=%d cmnd=(%s %s raw=%s)",
__entry->host_no, __entry->channel, __entry->id,
__entry->lun, __entry->data_sglen, __entry->prot_sglen,
- show_prot_op_name(__entry->prot_op),
+ show_prot_op_name(__entry->prot_op), __entry->tag,
show_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len))
@@ -253,6 +255,7 @@ TRACE_EVENT(scsi_dispatch_cmd_error,
__field( int, rtn )
__field( unsigned int, opcode )
__field( unsigned int, cmd_len )
+ __field( int, tag )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
__field( unsigned char, prot_op )
@@ -267,6 +270,7 @@ TRACE_EVENT(scsi_dispatch_cmd_error,
__entry->rtn = rtn;
__entry->opcode = cmd->cmnd[0];
__entry->cmd_len = cmd->cmd_len;
+ __entry->tag = cmd->request->tag;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
__entry->prot_op = scsi_get_prot_op(cmd);
@@ -274,10 +278,10 @@ TRACE_EVENT(scsi_dispatch_cmd_error,
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u prot_sgl=%u" \
- " prot_op=%s cmnd=(%s %s raw=%s) rtn=%d",
+ " prot_op=%s tag=%d cmnd=(%s %s raw=%s) rtn=%d",
__entry->host_no, __entry->channel, __entry->id,
__entry->lun, __entry->data_sglen, __entry->prot_sglen,
- show_prot_op_name(__entry->prot_op),
+ show_prot_op_name(__entry->prot_op), __entry->tag,
show_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),
@@ -298,6 +302,7 @@ DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,
__field( int, result )
__field( unsigned int, opcode )
__field( unsigned int, cmd_len )
+ __field( int, tag )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
__field( unsigned char, prot_op )
@@ -312,6 +317,7 @@ DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,
__entry->result = cmd->result;
__entry->opcode = cmd->cmnd[0];
__entry->cmd_len = cmd->cmd_len;
+ __entry->tag = cmd->request->tag;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
__entry->prot_op = scsi_get_prot_op(cmd);
@@ -319,11 +325,11 @@ DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u " \
- "prot_sgl=%u prot_op=%s cmnd=(%s %s raw=%s) result=(driver=" \
- "%s host=%s message=%s status=%s)",
+ "prot_sgl=%u prot_op=%s tag=%d cmnd=(%s %s raw=%s) " \
+ "result=(driver=%s host=%s message=%s status=%s)",
__entry->host_no, __entry->channel, __entry->id,
__entry->lun, __entry->data_sglen, __entry->prot_sglen,
- show_prot_op_name(__entry->prot_op),
+ show_prot_op_name(__entry->prot_op), __entry->tag,
show_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),
--
2.7.4
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