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_mem.c | |
| parent | 91455b850956bc13708a074bd1400f54aae74890 (diff) | |
| download | lwn-411de511c6943554cdc4173c3f522029db2f75c7.tar.gz lwn-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_mem.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_mem.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c index 87c08ff37ddd..60078e61da5e 100644 --- a/drivers/scsi/lpfc/lpfc_mem.c +++ b/drivers/scsi/lpfc/lpfc_mem.c @@ -753,12 +753,16 @@ lpfc_rq_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp) drqe.address_hi = putPaddrHigh(rqb_entry->dbuf.phys); rc = lpfc_sli4_rq_put(rqb_entry->hrq, rqb_entry->drq, &hrqe, &drqe); if (rc < 0) { + (rqbp->rqb_free_buffer)(phba, rqb_entry); lpfc_printf_log(phba, KERN_ERR, LOG_INIT, - "6409 Cannot post to RQ %d: %x %x\n", + "6409 Cannot post to HRQ %d: %x %x %x " + "DRQ %x %x\n", rqb_entry->hrq->queue_id, rqb_entry->hrq->host_index, - rqb_entry->hrq->hba_index); - (rqbp->rqb_free_buffer)(phba, rqb_entry); + rqb_entry->hrq->hba_index, + rqb_entry->hrq->entry_count, + rqb_entry->drq->host_index, + rqb_entry->drq->hba_index); } else { list_add_tail(&rqb_entry->hbuf.list, &rqbp->rqb_buffer_list); rqbp->buffer_count++; |