From: Chad Dupuis <chad.dupuis@cavium.com>
Date: Tue, 15 Aug 2017 10:08:16 -0700
Subject: scsi: qedf: Set WWNN and WWPN based on values from qed.
Patch-mainline: v4.14-rc1
Git-commit: 01fd76a76552b801897ac087e4e2d7667dd7c458
References: bsc#1050530 FATE#322901
If dev_info.wwpn and dev_info.wwnn are set by qed use these values to set
the WWNs of the port. Otherwise fall back to the old method using
fcoe_wwn_from_mac().
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/scsi/qedf/qedf_main.c | 21 ++++++++++++++++++---
1 file changed, 18 insertions(+), 3 deletions(-)
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -3056,9 +3056,24 @@ static int __qedf_probe(struct pci_dev *
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
qedf->mac);
- /* Set the WWNN and WWPN based on the MAC address */
- qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
- qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
+ /*
+ * Set the WWNN and WWPN in the following way:
+ *
+ * If the info we get from qed is non-zero then use that to set the
+ * WWPN and WWNN. Otherwise fall back to use fcoe_wwn_from_mac() based
+ * on the MAC address.
+ */
+ if (qedf->dev_info.wwnn != 0 && qedf->dev_info.wwpn != 0) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Setting WWPN and WWNN from qed dev_info.\n");
+ qedf->wwnn = qedf->dev_info.wwnn;
+ qedf->wwpn = qedf->dev_info.wwpn;
+ } else {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Setting WWPN and WWNN using fcoe_wwn_from_mac().\n");
+ qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
+ qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
+ }
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
"WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);