Commit aba99748 authored Aug 06, 2020 by Saurav Kashyap Committed by Greg Kroah-Hartman Sep 03, 2020

scsi: qla2xxx: Check if FW supports MQ before enabling

[ Upstream commit dffa11453313a115157b19021cc2e27ea98e624c ]

OS boot during Boot from SAN was stuck at dracut emergency shell after
enabling NVMe driver parameter. For non-MQ support the driver was enabling
MQ. Add a check to confirm if FW supports MQ.

Link: https://lore.kernel.org/r/20200806111014.28434-9-njavali@marvell.com


Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 023e0e6b

drivers/scsi/qla2xxx/qla_os.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -1997,6 +1997,11 @@ qla2x00_iospace_config(struct qla_hw_data *ha)
		/* Determine queue resources */
		ha->max_req_queues = ha->max_rsp_queues = 1;
		ha->msix_count = QLA_BASE_VECTORS;

		/* Check if FW supports MQ or not */
		if (!(ha->fw_attributes & BIT_6))
		goto mqiobase_exit;

		if (!ql2xmqsupport \|\| !ql2xnvmeenable \|\|
		(!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
		goto mqiobase_exit;