From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 8 Aug 2019 20:01:41 -0700
Subject: scsi: qla2xxx: Report the firmware status code if a mailbox command
 fails
Patch-mainline: v5.4-rc1
Git-commit: b3e9772d9ec5aed081ed06b1431a52945dc37ccf
References: bsc#1123034 bsc#1131304 bsc#1127988 bsc#1143706

It is helpful when debugging this driver to have the firmware status code
available if a mailbox command fails. Hence report that firmware status
code.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
 drivers/scsi/qla2xxx/qla_mbx.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -394,8 +394,12 @@ qla2x00_mailbox_command(scsi_qla_host_t
 			goto premature_exit;
 		}
 
-		if (ha->mailbox_out[0] != MBS_COMMAND_COMPLETE)
+		if (ha->mailbox_out[0] != MBS_COMMAND_COMPLETE) {
+			ql_dbg(ql_dbg_mbx, vha, 0x11ff,
+			       "mb_out[0] = %#x <> %#x\n", ha->mailbox_out[0],
+			       MBS_COMMAND_COMPLETE);
 			rval = QLA_FUNCTION_FAILED;
+		}
 
 		/* Load return mailbox registers. */
 		iptr2 = mcp->mb;