netdev - Re: [PATCH net-next V2 0/2] XDP transmission for tuntap

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Message-ID: <a8646e18-e9ac-84f4-dc67-8b7870551ab5@redhat.com>
Date:   Wed, 10 Jan 2018 11:00:45 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     David Miller <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        mst@...hat.com, jbrouer@...hat.com
Subject: Re: [PATCH net-next V2 0/2] XDP transmission for tuntap



On 2018年01月10日 00:06, David Miller wrote:
> From: Jason Wang <jasowang@...hat.com>
> Date: Thu,  4 Jan 2018 11:14:26 +0800
>
>> This series tries to implement XDP transmission (ndo_xdp_xmit) for
>> tuntap. Pointer ring was used for queuing both XDP buffers and
>> sk_buff, this is done by encoding the type into lowest bit of the
>> pointer and storin XDP metadata in the headroom of XDP buff.
>>
>> Tests gets 3.05 Mpps when doing xdp_redirect_map from ixgbe to VM
>> (testpmd + virtio-net in guest). This gives us ~20% improvments
>> compared to use skb during redirect.
>>
>> Please review.
>>
>> Changes from V1:
>>
>> - slient warnings
>> - fix typos
>> - add skb mode number in the commit log
> Series applied, thanks Jason.
>
> There was some overlap with recent changes from Jesper, please take
> a look.
>
> Thank you.

The changes looks good, will have a test and report.

Thanks