From: Giridhar Malavali <giridhar.malavali@qlogic.com>
Date: Thu, 7 Jul 2016 06:15:53 +0000 (+0530)
Subject: qla2xxx: Set FLOGI retry in additional firmware options for P2P (N2N) mode.
X-Git-Tag: v4.1.12-92~109^2~32
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=179b37c0e759c1874ae864d0de566f838e2a528a;p=users%2Fjedix%2Flinux-maple.git

qla2xxx: Set FLOGI retry in additional firmware options for P2P (N2N) mode.

Orabug: 23755773

When VP decoupling enabled, there could be a window where, FLOGI from
initiators can be dropped before VP0 is enabled, causing link level recovery.
Retry FLOGI to avoid link level recovery.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com>
---

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 2969be2cb486..9ae6ee726eed 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -16,7 +16,7 @@
  * |                              |                    | 0x016e-0x0170  |
  * | Mailbox commands             |       0x118d       | 0x1115-0x1116	|
  * |                              |                    | 0x111a-0x111b  |
- * | Device Discovery             |       0x2016       | 0x2020-0x2022, |
+ * | Device Discovery             |       0x2103       | 0x2020-0x2022, |
  * |                              |                    | 0x2011-0x2012, |
  * |                              |                    | 0x2099-0x20a4  |
  * | Queue Command and IO tracing |       0x3075       | 0x300b         |
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index c15d33d2ea11..ad6d4adfeeed 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -2036,6 +2036,14 @@ qla2x00_update_fw_options(scsi_qla_host_t *vha)
 	if (IS_QLA6312(ha))
 		ha->fw_options[2] |= BIT_13;
 
+	/* Set Retry FLOGI in case of P2P connection */
+	if (ha->operating_mode == P2P) {
+		ha->fw_options[2] |= BIT_3;
+		ql_dbg(ql_dbg_disc, vha, 0x2100,
+		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
+			__func__, ha->fw_options[2]);
+	}
+
 	/* Update firmware options. */
 	qla2x00_set_fw_options(vha, ha->fw_options);
 }
@@ -2053,6 +2061,14 @@ qla24xx_update_fw_options(scsi_qla_host_t *vha)
 	if (ql2xfwholdabts)
 		ha->fw_options[3] |= BIT_12;
 
+	/* Set Retry FLOGI in case of P2P connection */
+	if (ha->operating_mode == P2P) {
+		ha->fw_options[2] |= BIT_3;
+		ql_dbg(ql_dbg_disc, vha, 0x2101,
+		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
+			__func__, ha->fw_options[2]);
+	}
+
 	/* Update Serial Link options. */
 	if ((le16_to_cpu(ha->fw_seriallink_options24[0]) & BIT_0) == 0)
 		return;
@@ -6473,6 +6489,14 @@ qla81xx_update_fw_options(scsi_qla_host_t *vha)
 	if (ql2xfwholdabts)
 		ha->fw_options[3] |= BIT_12;
 
+	/* Set Retry FLOGI in case of P2P connection */
+	if (ha->operating_mode == P2P) {
+		ha->fw_options[2] |= BIT_3;
+		ql_dbg(ql_dbg_disc, vha, 0x2103,
+		    "(%s): Setting FLOGI retry BIT in fw_options[2]: 0x%x\n",
+			__func__, ha->fw_options[2]);
+	}
+
 	if (!ql2xetsenable)
 		goto out;