From: Duane Grigsby <duane.grigsby@cavium.com>
Date: Fri, 13 Oct 2017 09:34:05 -0700
Subject: scsi: qla2xxx: Allow MBC_GET_PORT_DATABASE to query and save the port
 states
Patch-mainline: v4.15-rc1
Git-commit: c0c462c8a061658ce5ae53c423b2a14bb280c2ab
References: FATE#322910

The MBC_GET_PORT_DATABASE command normally checks the port state
information. This patch allows it to save that info in the fcport
structure and ignore the check if the query flag is set.

[mkp: typo]

Signed-off-by: Duane Grigsby <duane.grigsby@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
 drivers/scsi/qla2xxx/qla_def.h |    4 ++++
 drivers/scsi/qla2xxx/qla_mbx.c |   29 ++++++++++++++++++++++-------
 2 files changed, 26 insertions(+), 7 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2303,6 +2303,7 @@
 	unsigned int send_els_logo:1;
 	unsigned int login_pause:1;
 	unsigned int login_succ:1;
+	unsigned int query:1;
 
 	struct work_struct nvme_del_work;
 	struct completion nvme_del_done;
@@ -2369,6 +2370,8 @@
 	struct list_head gnl_entry;
 	struct work_struct del_work;
 	u8 iocb[IOCB_SIZE];
+	u8 current_login_state;
+	u8 last_login_state;
 } fc_port_t;
 
 #define QLA_FCPORT_SCAN		1
@@ -4114,6 +4117,7 @@
 #define QPAIR_ONLINE_CHECK_NEEDED	27
 #define SET_ZIO_THRESHOLD_NEEDED	28
 #define DETECT_SFP_CHANGE	29
+#define N2N_LOGIN_NEEDED	30
 
 	unsigned long	pci_flags;
 #define PFLG_DISCONNECTED	0	/* PCI device removed */
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -1822,17 +1822,32 @@
 
 	if (IS_FWI2_CAPABLE(ha)) {
 		uint64_t zero = 0;
+		u8 current_login_state, last_login_state;
+
 		pd24 = (struct port_database_24xx *) pd;
 
 		/* Check for logged in state. */
-		if (pd24->current_login_state != PDS_PRLI_COMPLETE &&
-		    pd24->last_login_state != PDS_PRLI_COMPLETE) {
-			ql_dbg(ql_dbg_mbx, vha, 0x1051,
-			    "Unable to verify login-state (%x/%x) for "
-			    "loop_id %x.\n", pd24->current_login_state,
-			    pd24->last_login_state, fcport->loop_id);
+		if (fcport->fc4f_nvme) {
+			current_login_state = pd24->current_login_state >> 4;
+			last_login_state = pd24->last_login_state >> 4;
+		} else {
+			current_login_state = pd24->current_login_state & 0xf;
+			last_login_state = pd24->last_login_state & 0xf;
+		}
+		fcport->current_login_state = pd24->current_login_state;
+		fcport->last_login_state = pd24->last_login_state;
+
+		/* Check for logged in state. */
+		if (current_login_state != PDS_PRLI_COMPLETE &&
+		    last_login_state != PDS_PRLI_COMPLETE) {
+			ql_dbg(ql_dbg_mbx, vha, 0x119a,
+			    "Unable to verify login-state (%x/%x) for loop_id %x.\n",
+			    current_login_state, last_login_state,
+			    fcport->loop_id);
 			rval = QLA_FUNCTION_FAILED;
-			goto gpd_error_out;
+
+			if (!fcport->query)
+				goto gpd_error_out;
 		}
 
 		if (fcport->loop_id == FC_NO_LOOP_ID ||