[PATCH-v1 12/22] Fix driver usage of 128B WQEs when WQ_CREATE is V1.

Johannes Thumshirn jthumshirn at suse.de
Thu Apr 20 00:37:41 PDT 2017


On Wed, Apr 19, 2017 at 09:46:31PM -0700, jsmart2021 at gmail.com wrote:
> From: James Smart <jsmart2021 at gmail.com>
> 
> 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 at broadcom.com>
> Signed-off-by: James Smart <james.smart at broadcom.com>
> ---

Reviewed-by: Johannes Thumshirn <jthumshirn at suse.de>
-- 
Johannes Thumshirn                                          Storage
jthumshirn at suse.de                                +49 911 74053 689
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