By default it showed rtn in decimal:
kworker/3:1H-183 [003] .... 51.035474: scsi_dispatch_cmd_error: host_no=0
channel=0 id=0 lun=4 data_sgl=1 prot_sgl=0 prot_op=SCSI_PROT
_NORMAL cmnd=(READ_10 lba=3907214 txlen=1 protect=0 raw=28 00 00 3b 9e 8e 00
00 01 00) rtn=4181
In source code we define these possible values as hexadecimal:
include/scsi/scsi.h
SCSI_MLQUEUE_HOST_BUSY 0x1055
SCSI_MLQUEUE_DEVICE_BUSY 0x1056
SCSI_MLQUEUE_EH_RETRY 0x1057
SCSI_MLQUEUE_TARGET_BUSY 0x1058
This change shows the rtn in strings:
dd-1090 [007] ..... 23.485300: scsi_dispatch_cmd_error: host_no=0
channel=0 id=0 lun=4 data_sgl=64 prot_sgl=0 prot_op=SCSI_PROT_NORMAL
driver_tag=18 scheduler_tag=9 cmnd=(READ_10 lba=384 txlen=128 protect=0
raw=28 00 00 00 01 80 00 00 80 00) rtn=HOST_BUSY
Signed-off-by: Kassey Li <quic_yinga...@quicinc.com>
---
include/trace/events/scsi.h | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
index bf6cc98d9122..92a5b6a411b5 100644
--- a/include/trace/events/scsi.h
+++ b/include/trace/events/scsi.h
@@ -200,6 +200,12 @@ TRACE_EVENT(scsi_dispatch_cmd_start,
__print_hex(__get_dynamic_array(cmnd), __entry->cmd_len))
);
+#define show_rtn_name(rtn) \
+ __print_symbolic(rtn, { SCSI_MLQUEUE_HOST_BUSY, "HOST_BUSY" }, \
+ { SCSI_MLQUEUE_DEVICE_BUSY, "DEVICE_BUSY" }, \
+ { SCSI_MLQUEUE_EH_RETRY, "EH_RETRY" }, \
+ { SCSI_MLQUEUE_TARGET_BUSY, "TARGET_BUSY" })
+
TRACE_EVENT(scsi_dispatch_cmd_error,
TP_PROTO(struct scsi_cmnd *cmd, int rtn),
@@ -240,14 +246,15 @@ 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 driver_tag=%d scheduler_tag=%d cmnd=(%s %s
raw=%s)" \
- " rtn=%d",
+ " rtn=%s",
__entry->host_no, __entry->channel, __entry->id,
__entry->lun, __entry->data_sglen, __entry->prot_sglen,
show_prot_op_name(__entry->prot_op), __entry->driver_tag,
__entry->scheduler_tag, 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)
+ show_rtn_type(__entry->rtn)
+ )
);
DECLARE_EVENT_CLASS(scsi_cmd_done_timeout_template,
--
2.34.1
