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| author | James Smart <jsmart2021@gmail.com> | 2017-04-21 16:04:56 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-24 10:57:33 +0100 |
| commit | c84d2e72f5dd07d6a3fc4195a2b8574ba8f7721d (patch) | |
| tree | 76d46d1a9819855d4f68bebd4496eb1ebc26f7b6 /drivers | |
| parent | 21bdd575943daef3c951ecd3dd70ef62bb9f065e (diff) | |
| download | linux-stable-c84d2e72f5dd07d6a3fc4195a2b8574ba8f7721d.tar.gz linux-stable-c84d2e72f5dd07d6a3fc4195a2b8574ba8f7721d.tar.bz2 linux-stable-c84d2e72f5dd07d6a3fc4195a2b8574ba8f7721d.zip | |
Fix driver usage of 128B WQEs when WQ_CREATE is V1.
[ 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 <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_sli.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index fb7dc27a2e1c..c3cdb9f72bd8 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -13469,6 +13469,9 @@ 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: |