[dpdk-dev] [PATCH v2] ena: fix doorbell submission when not needed

[Bruce Richardson]

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