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| author | James Smart <jsmart2021@gmail.com> | 2019-01-28 22:14:25 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-02-06 06:29:08 +0300 |
| commit | 4c47efc140fa926f00aa59c248458d95bd7b5eab (patch) | |
| tree | 1c78b9c63ed4fc7eab3627e12239d04a8c564144 /drivers/scsi/lpfc/lpfc_scsi.h | |
| parent | 63df6d637e3358e64b43e7a774939f8f963926cb (diff) | |
| download | linux-4c47efc140fa926f00aa59c248458d95bd7b5eab.tar.xz | |
scsi: lpfc: Move SCSI and NVME Stats to hardware queue structures
Many io statistics were being sampled and saved using adapter-based data
structures. This was creating a lot of contention and cache thrashing in
the I/O path.
Move the statistics to the hardware queue data structures. Given the
per-queue data structures, use of atomic types is lessened.
Add new sysfs and debugfs stat routines to collate the per hardware queue
values and report at an adapter level.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.h')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h index ebb5d5860cdb..68e6c4ad3936 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.h +++ b/drivers/scsi/lpfc/lpfc_scsi.h @@ -196,5 +196,8 @@ struct lpfc_scsi_buf { #define TXRDY_PAYLOAD_LEN 12 +/* For sysfs/debugfs tmp string max len */ +#define LPFC_MAX_SCSI_INFO_TMP_LEN 79 + int lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd); |