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scsi: lpfc: Beef up stat counters for debug

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If log verbose in not turned on, its hard to tell when certain error
paths get hit. Add stats counters and corresponding logic to
debugfs/sysfs to aid understanding what paths were traversed.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart
2017-12-08 17:18:10 -08:00
committed by Martin K. Petersen
parent 3fd78355cd
commit 4b056682d8
6 changed files with 171 additions and 19 deletions
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5
drivers/scsi/lpfc/lpfc_nvmet.h
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@@ -47,6 +47,8 @@ struct lpfc_nvmet_tgtport {
/* Stats counters - lpfc_nvmet_xmt_ls_rsp_cmp */
atomic_t xmt_ls_rsp_error;
atomic_t xmt_ls_rsp_aborted;
atomic_t xmt_ls_rsp_xb_set;
atomic_t xmt_ls_rsp_cmpl;
/* Stats counters - lpfc_nvmet_unsol_fcp_buffer */
@@ -64,12 +66,15 @@ struct lpfc_nvmet_tgtport {
atomic_t xmt_fcp_rsp;
/* Stats counters - lpfc_nvmet_xmt_fcp_op_cmp */
atomic_t xmt_fcp_rsp_xb_set;
atomic_t xmt_fcp_rsp_cmpl;
atomic_t xmt_fcp_rsp_error;
atomic_t xmt_fcp_rsp_aborted;
atomic_t xmt_fcp_rsp_drop;
/* Stats counters - lpfc_nvmet_xmt_fcp_abort */
atomic_t xmt_fcp_xri_abort_cqe;
atomic_t xmt_fcp_abort;
atomic_t xmt_fcp_abort_cmpl;
atomic_t xmt_abort_sol;