lpfc: Fix driver usage of 128B WQEs when WQ_CREATE is

[backport of 8c434f8b07d99c4f0728ed144108839a367c72c0]
From: rkennedy <dick.kennedy@avagotech.com>

Orabug: 26439257

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 <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Brian Maly <brian.maly@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 62d089fb3a15e90a02f0ad17b2041e6050bee185..6a8742ec83a74b874c7fbe3080593f87dfd7ff07 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -13695,6 +13695,9 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
        case LPFC_Q_CREATE_VERSION_1:
                bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
                       wq->entry_count);
+               bf_set(lpfc_mbox_hdr_version, &shdr->request,
+                      LPFC_Q_CREATE_VERSION_1);
+
                switch (wq->entry_size) {
                default:
                case 64: