scsi: qla2xxx: Log the status code if a firmware command fails

It is important to know why a firmware command failed. Hence log 'rval'
together with the values of the mailbox registers if a firwmare command
fails.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Signed-off-by: NBart Van Assche <bvanassche@acm.org>
Acked-by: NHimanshu Madhani <hmadhani@marvell.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_mbx.c

@@ -567,9 +567,9 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
 		    mcp->mb[0]);
 	} else if (rval) {
 		if (ql2xextended_error_logging & (ql_dbg_disc|ql_dbg_mbx)) {
-			pr_warn("%s [%s]-%04x:%ld: **** Failed", QL_MSGHDR,
+			pr_warn("%s [%s]-%04x:%ld: **** Failed=%x", QL_MSGHDR,
 			    dev_name(&ha->pdev->dev), 0x1020+0x800,
-			    vha->host_no);
+			    vha->host_no, rval);
 			mboxes = mcp->in_mb;
 			cnt = 4;
 			for (i = 0; i < ha->mbx_count && cnt; i++, mboxes >>= 1)

drivers/scsi/qla2xxx/qla_mr.c

@@ -273,9 +273,9 @@ qlafx00_mailbox_command(scsi_qla_host_t *vha, struct mbx_cmd_32 *mcp)
 
 	if (rval) {
 		ql_log(ql_log_warn, base_vha, 0x1163,
-		    "**** Failed mbx[0]=%x, mb[1]=%x, mb[2]=%x, "
-		    "mb[3]=%x, cmd=%x ****.\n",
-		    mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3], command);
+		       "**** Failed=%x mbx[0]=%x, mb[1]=%x, mb[2]=%x, mb[3]=%x, cmd=%x ****.\n",
+		       rval, mcp->mb[0], mcp->mb[1], mcp->mb[2], mcp->mb[3],
+		       command);
 	} else {
 		ql_dbg(ql_dbg_mbx, base_vha, 0x1164, "Done %s.\n", __func__);
 	}