From: Chad Dupuis <chad.dupuis@cavium.com>
Date: Wed, 25 Apr 2018 06:08:54 -0700
Subject: scsi: qedf: Return request as DID_NO_CONNECT if MSI-X is not enabled
Git-commit: a8f192bce17430106157100746699bfabbd6e892
Patch-mainline: v4.18-rc1
References: bsc#1086317

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Lee Duncan <lduncan@suse.com>
---

 drivers/scsi/qedf/qedf_io.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/drivers/scsi/qedf/qedf_io.c
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -931,6 +931,15 @@ qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
 		return 0;
 	}
 
+	if (!qedf->pdev->msix_enabled) {
+		QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+		    "Completing sc_cmd=%p DID_NO_CONNECT as MSI-X is not enabled.\n",
+		    sc_cmd);
+		sc_cmd->result = DID_NO_CONNECT << 16;
+		sc_cmd->scsi_done(sc_cmd);
+		return 0;
+	}
+
 	rval = fc_remote_port_chkready(rport);
 	if (rval) {
 		sc_cmd->result = rval;