[dpdk-dev] [PATCH v2] virtio: Use cpuflag for vector api

Santosh Shukla sshukla at mvista.com
Tue Mar 1 07:08:55 CET 2016


On Tue, Mar 1, 2016 at 11:29 AM, Yuanhan Liu
<yuanhan.liu at linux.intel.com> wrote:
> On Mon, Feb 29, 2016 at 06:28:10PM +0530, Santosh Shukla wrote:
>> Check cpuflag macro before using vectored api.
>> -virtio_recv_pkts_vec() uses _sse3__ simd instruction for now so added cpuflag.
>> - Also wrap other vectored freind api ie..
>> 1) virtqueue_enqueue_recv_refill_simple
>> 2) virtio_rxq_vec_setup
>>
>> - removed VIRTIO_PMD=n from armv7/v8 config.
>>
>> todo:
>> 1) Move virtio_recv_pkts_vec() implementation to
>>    drivers/virtio/virtio_vec_<arch>.h file.
>> 2) Remove use_simple_rxtx flag, so that virtio/virtio_vec_<arch>.h
>>    files to provide vectored/non-vectored rx/tx apis.
>>
>> Signed-off-by: Santosh Shukla <sshukla at mvista.com>
>> ---
>> - v2: Removed VIRTIO_PMD=n from arm v7/v8
>
> Firstly, I would not suggest you to send another new version, while there
> still was discussions ongoing on old version.
>
> And, you should not mix the ARM stuff here; this patch should only do
> what the patch title tells. In generic, don't do two or more things in
> one patch.
>

w/o v2 patch, old version wont build for armv7/v8. Clubbing both in
v2, inspired from v7 virtio INC_VEC review comment/feedback [1].

[1] http://dpdk.org/dev/patchwork/patch/10429/

>         --yliu


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