[dpdk-dev] [PATCH v2] ena: fix doorbell submission when not needed
Bruce Richardson
bruce.richardson at intel.com
Fri Jul 8 23:03:34 CEST 2016
On Fri, Jul 08, 2016 at 01:11:30PM +0200, Jan Medala wrote:
> Avoid submitting doorbell when:
> * no packets have been submitted to TX
> * no free resources have been submitted while RX
>
> Sending doorbell without actual work to be performed by device
> violates ENA specification and can lead to unpredictable behavior.
>
> Fixes: 1173fca25af9 ("ena: add polling-mode driver")
>
> Signed-off-by: Alexander Matushevsky <matua at amazon.com>
> Signed-off-by: Jan Medala <jan at semihalf.com>
> ---
Applied to dpdk-net-net/rel_16_07
/Bruce
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