From: Bruce Richardson <bruce.richardson@intel.com>
To: Jan Medala <jan@semihalf.com>
Cc: dev@dpdk.org, thomas.monjalon@6wind.com,
Alexander Matushevsky <matua@amazon.com>
Subject: Re: [dpdk-dev] [PATCH v2] ena: fix doorbell submission when not needed
Date: Fri, 8 Jul 2016 22:03:34 +0100 [thread overview]
Message-ID: <20160708210334.GG34980@bricha3-MOBL3> (raw)
In-Reply-To: <20160708111130.28056-2-jan@semihalf.com>
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@amazon.com>
> Signed-off-by: Jan Medala <jan@semihalf.com>
> ---
Applied to dpdk-net-net/rel_16_07
/Bruce
prev parent reply other threads:[~2016-07-08 21:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-07 11:33 [dpdk-dev] [PATCH] " Jan Mędala
2016-07-08 11:11 ` [dpdk-dev] [PATCH v2] ena: doorbell fix Jan Medala
2016-07-08 11:11 ` [dpdk-dev] [PATCH v2] ena: fix doorbell submission when not needed Jan Medala
2016-07-08 21:03 ` Bruce Richardson [this message]
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