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Subject[PATCH AUTOSEL for 4.9 072/190] Fix driver usage of 128B WQEs when WQ_CREATE is V1.
From: James Smart <>

[ Upstream commit 3f247de750b8dd8f50a2c1390e2a1238790a9dff ]

There are two versions of a structure for queue creation and setup that the
driver shares with FW. The driver was only treating as version 0.

Verify WQ_CREATE with 128B WQEs in V0 and V1.

Code review of another bug showed the driver passing
128B WQEs and 8 pages in WQ CREATE and V0.
Code inspection/instrumentation showed that the driver
uses V0 in WQ_CREATE and if the caller passes queue->entry_size
128B, the driver sets the hdr_version to V1 so all is good.
When I tested the V1 WQ_CREATE, the mailbox failed causing
the driver to unload.

Signed-off-by: Dick Kennedy <>
Signed-off-by: James Smart <>
Reviewed-by: Johannes Thumshirn <>
Signed-off-by: Sasha Levin <>
drivers/scsi/lpfc/lpfc_sli.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 8f1df76a77b6..0902ed204ba8 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -13696,6 +13696,9 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
+ bf_set(lpfc_mbox_hdr_version, &shdr->request,
switch (wq->entry_size) {
case 64:
 \ /
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