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scsi: lpfc: Enlarge nvmet asynchronous receive buffer counts

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Under large io load, the current sizing of asynchronous buffer counts
could be exceeded, indicated by a 2885 log message:

  2885 Port Status Event: port status reg 0x81800000, port smphr
      reg 0xc000, error 1=0x52004a01, error 2=0x0

Enlarge the async receive queue size.  Allow for a configurable number
of buffers to be posted to each RQ, using the new attribute
lpfc_nvmet_mrq_post.

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
2018-04-09 14:24:24 -07:00
committed by Martin K. Petersen
parent 66a210ffb8
commit 2448e48425
4 changed files with 17 additions and 3 deletions
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2
drivers/scsi/lpfc/lpfc_sli.c
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@@ -7199,7 +7199,7 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
lpfc_post_rq_buffer(
phba, phba->sli4_hba.nvmet_mrq_hdr[i],
phba->sli4_hba.nvmet_mrq_data[i],
LPFC_NVMET_RQE_DEF_COUNT, i);
phba->cfg_nvmet_mrq_post, i);
}
}