diff options
| author |   James Smart <jsmart2021@gmail.com> | 2018-01-30 15:58:52 -0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-02-12 11:43:23 -0500 |
| commit | 411de511c6943554cdc4173c3f522029db2f75c7 (patch) | |
| tree | 442bcc5c77a747c83be8eaa211ef2018edaed545 /drivers/scsi/lpfc/lpfc_attr.c | |
| parent | scsi: lpfc: Fix IO failure during hba reset testing with nvme io. (diff) | |
| download | linux-dev-411de511c6943554cdc4173c3f522029db2f75c7.tar.xz linux-dev-411de511c6943554cdc4173c3f522029db2f75c7.zip | |
scsi: lpfc: Fix RQ empty firmware trap
When nvme target deferred receive logic waits for exchange resources,
the corresponding receive buffer is not replenished with the hardware.
This can result in a lack of asynchronous receive buffer resources in
the hardware, resulting in a "2885 Port Status Event: ... error
1=0x52004a01 ..." message.
Correct by replenishing the buffer whenenver the deferred logic kicks
in. Update corresponding debug messages and statistics as well.
[mkp: applied by hand]
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 ac77081e6e9e..c63a028385ab 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -259,6 +259,12 @@ 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, + "DELAY: ctx %08x fod %08x wqfull %08x\n", + atomic_read(&tgtp->defer_ctx), + atomic_read(&tgtp->defer_fod), + atomic_read(&tgtp->defer_wqfull)); + /* Calculate outstanding IOs */ tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); tot += atomic_read(&tgtp->xmt_fcp_release); |