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[SCSI] Include protection operation in SCSI command trace

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When debugging DIF/DIX it is very helpful to be able to see which DIX
operation is associated with the scsi_cmnd. Include the protection op in
the SCSI command trace.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Martin K. Petersen 2011-03-08 02:03:59 -05:00 committed by James Bottomley
parent 9143a96122
commit 72f7d322fd
2 changed files with 25 additions and 4 deletions
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1
drivers/scsi/scsi_lib.c
View File

@ -1062,6 +1062,7 @@ static struct scsi_cmnd *scsi_get_cmd_from_req(struct scsi_device *sdev,
cmd->request = req;
cmd->cmnd = req->cmd;
cmd->prot_op = SCSI_PROT_NORMAL;
return cmd;
}

28
include/trace/events/scsi.h
View File

@ -184,6 +184,17 @@
scsi_statusbyte_name(SAM_STAT_ACA_ACTIVE), \
scsi_statusbyte_name(SAM_STAT_TASK_ABORTED))
#define scsi_prot_op_name(result) { result, #result }
#define show_prot_op_name(val) \
__print_symbolic(val, \
scsi_prot_op_name(SCSI_PROT_NORMAL), \
scsi_prot_op_name(SCSI_PROT_READ_INSERT), \
scsi_prot_op_name(SCSI_PROT_WRITE_STRIP), \
scsi_prot_op_name(SCSI_PROT_READ_STRIP), \
scsi_prot_op_name(SCSI_PROT_WRITE_INSERT), \
scsi_prot_op_name(SCSI_PROT_READ_PASS), \
scsi_prot_op_name(SCSI_PROT_WRITE_PASS))
const char *scsi_trace_parse_cdb(struct trace_seq*, unsigned char*, int);
#define __parse_cdb(cdb, len) scsi_trace_parse_cdb(p, cdb, len)
@ -202,6 +213,7 @@ TRACE_EVENT(scsi_dispatch_cmd_start,
__field( unsigned int, cmd_len )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
__field( unsigned char, prot_op )
__dynamic_array(unsigned char, cmnd, cmd->cmd_len)
),
@ -214,13 +226,15 @@ TRACE_EVENT(scsi_dispatch_cmd_start,
__entry->cmd_len = cmd->cmd_len;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
__entry->prot_op = scsi_get_prot_op(cmd);
memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u prot_sgl=%u" \
" cmnd=(%s %s raw=%s)",
" prot_op=%s 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_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len))
@ -242,6 +256,7 @@ TRACE_EVENT(scsi_dispatch_cmd_error,
__field( unsigned int, cmd_len )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
__field( unsigned char, prot_op )
__dynamic_array(unsigned char, cmnd, cmd->cmd_len)
),
@ -255,13 +270,15 @@ TRACE_EVENT(scsi_dispatch_cmd_error,
__entry->cmd_len = cmd->cmd_len;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
__entry->prot_op = scsi_get_prot_op(cmd);
memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u prot_sgl=%u" \
" cmnd=(%s %s raw=%s) rtn=%d",
" prot_op=%s 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_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),
@ -284,6 +301,7 @@ DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,
__field( unsigned int, cmd_len )
__field( unsigned int, data_sglen )
__field( unsigned int, prot_sglen )
__field( unsigned char, prot_op )
__dynamic_array(unsigned char, cmnd, cmd->cmd_len)
),
@ -297,14 +315,16 @@ DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,
__entry->cmd_len = cmd->cmd_len;
__entry->data_sglen = scsi_sg_count(cmd);
__entry->prot_sglen = scsi_prot_sg_count(cmd);
__entry->prot_op = scsi_get_prot_op(cmd);
memcpy(__get_dynamic_array(cmnd), cmd->cmnd, cmd->cmd_len);
),
TP_printk("host_no=%u channel=%u id=%u lun=%u data_sgl=%u " \
"prot_sgl=%u cmnd=(%s %s raw=%s) result=(driver=%s host=%s " \
"message=%s status=%s)",
"prot_sgl=%u prot_op=%s 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_opcode_name(__entry->opcode),
__parse_cdb(__get_dynamic_array(cmnd), __entry->cmd_len),
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len),