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| author | James Smart <jsmart2021@gmail.com> | 2017-05-16 00:20:46 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-05-17 03:22:22 +0200 |
| commit | a8cf5dfeb4d84248c0ad12386ae0cb36ee21589a (patch) | |
| tree | fb4580dc29cc56663b5702a688bf3518bd6ff7e6 /drivers/scsi/lpfc/lpfc_attr.c | |
| parent | scsi: lpfc: Separate NVMET RQ buffer posting from IO resources SGL/iocbq/context (diff) | |
| download | linux-a8cf5dfeb4d84248c0ad12386ae0cb36ee21589a.tar.xz linux-a8cf5dfeb4d84248c0ad12386ae0cb36ee21589a.zip | |
scsi: lpfc: Added recovery logic for running out of NVMET IO context resources
Previous logic would just drop the IO.
Added logic to queue the IO to wait for an IO context resource from an
IO thats already in progress.
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>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 65264582915a..bb2d9e238225 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -245,6 +245,12 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, atomic_read(&tgtp->xmt_abort_rsp), atomic_read(&tgtp->xmt_abort_rsp_error)); + len += snprintf(buf + len, PAGE_SIZE - len, + "IO_CTX: %08x outstanding %08x total %x", + phba->sli4_hba.nvmet_ctx_cnt, + phba->sli4_hba.nvmet_io_wait_cnt, + phba->sli4_hba.nvmet_io_wait_total); + len += snprintf(buf+len, PAGE_SIZE-len, "\n"); return len; } |