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Fix driver load issues when MRQ=8

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The symptom is that the driver will fail to login to the fabric.
The reason is because it is out of iocb resources.

There is a one to one relationship between MRQs
(receive buffers for NVMET-FC) and iocbs and the default number of
IOCBs was not accounting for the number of MRQs that were being created.

This fix aligns the number of MRQ resources with the total resources so
that it can handle fabric events when needed.

Also the initialization of ctxlock to be on FCP commands, NOT LS commands.
And modified log messages so that the log output can be correlated with
the analyzer trace.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
This commit is contained in:
James Smart
2017-04-21 16:04:59 -07:00
committed by Christoph Hellwig
parent 59c6e13ecd
commit 2b7824d00d
3 changed files with 23 additions and 18 deletions
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12
drivers/scsi/lpfc/lpfc_init.c
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@@ -11061,7 +11061,7 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
struct lpfc_hba *phba;
struct lpfc_vport *vport = NULL;
struct Scsi_Host *shost = NULL;
int error;
int error, cnt;
uint32_t cfg_mode, intr_mode;
/* Allocate memory for HBA structure */
@@ -11095,11 +11095,15 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
goto out_unset_pci_mem_s4;
}
cnt = phba->cfg_iocb_cnt * 1024;
if (phba->nvmet_support)
cnt += phba->cfg_nvmet_mrq_post * phba->cfg_nvmet_mrq;
/* Initialize and populate the iocb list per host */
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"2821 initialize iocb list %d.\n",
phba->cfg_iocb_cnt*1024);
error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
"2821 initialize iocb list %d total %d\n",
phba->cfg_iocb_cnt, cnt);
error = lpfc_init_iocb_list(phba, cnt);
if (error) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,