From: James Smart <jsmart2021@gmail.com>
Date: Thu, 15 Jun 2017 22:56:43 -0700
Subject: scsi: lpfc: Vport creation is failing with "Link Down" error
Patch-mainline: v4.13-rc1
Git-commit: 56bc802842839174befc97749ea01d4004275c14
References: bsc#1050239,FATE#322918

Vport creation fails for SLI-3 adapters.

Mailbox submission fails because mailbox interrupt is disabled. Mailbox
interrupt is disabled during port reset.

Do reset only for physical port.

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>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
---
 drivers/scsi/lpfc/lpfc_init.c |   21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -3691,14 +3691,6 @@ lpfc_get_wwpn(struct lpfc_hba *phba)
 	LPFC_MBOXQ_t *mboxq;
 	MAILBOX_t *mb;
 
-	if (phba->sli_rev < LPFC_SLI_REV4) {
-		/* Reset the port first */
-		lpfc_sli_brdrestart(phba);
-		rc = lpfc_sli_chipset_init(phba);
-		if (rc)
-			return (uint64_t)-1;
-	}
-
 	mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
 						GFP_KERNEL);
 	if (!mboxq)
@@ -3852,8 +3844,19 @@ lpfc_create_port(struct lpfc_hba *phba,
 	int i;
 	uint64_t wwn;
 	bool use_no_reset_hba = false;
+	int rc;
 
-	wwn = lpfc_get_wwpn(phba);
+	if (lpfc_no_hba_reset_cnt) {
+		if (phba->sli_rev < LPFC_SLI_REV4 &&
+		    dev == &phba->pcidev->dev) {
+			/* Reset the port first */
+			lpfc_sli_brdrestart(phba);
+			rc = lpfc_sli_chipset_init(phba);
+			if (rc)
+				return NULL;
+		}
+		wwn = lpfc_get_wwpn(phba);
+	}
 
 	for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
 		if (wwn == lpfc_no_hba_reset[i]) {