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Message-ID: <e1f2d723-4810-50c9-409f-d6761600beb8@linux.alibaba.com>
Date:   Thu, 8 Dec 2022 16:35:35 +0800
From:   Heng Qi <hengqi@...ux.alibaba.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>
Subject: Re: [RFC PATCH 3/9] virtio_net: update bytes calculation for
 xdp_frame



在 2022/12/6 下午1:31, Jason Wang 写道:
> On Tue, Nov 22, 2022 at 3:44 PM Heng Qi <hengqi@...ux.alibaba.com> wrote:
>> Update relative record value for xdp_frame as basis
>> for multi-buffer xdp transmission.
>>
>> Signed-off-by: Heng Qi <hengqi@...ux.alibaba.com>
>> Reviewed-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
> Acked-by: Jason Wang <jasowang@...hat.com>

Thanks for your energy, you are awesome.

>
> Thanks
>
>> ---
>>   drivers/net/virtio_net.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
>> index 8f7d207d58d6..d3e8c63b9c4b 100644
>> --- a/drivers/net/virtio_net.c
>> +++ b/drivers/net/virtio_net.c
>> @@ -658,7 +658,7 @@ static int virtnet_xdp_xmit(struct net_device *dev,
>>                  if (likely(is_xdp_frame(ptr))) {
>>                          struct xdp_frame *frame = ptr_to_xdp(ptr);
>>
>> -                       bytes += frame->len;
>> +                       bytes += xdp_get_frame_len(frame);
>>                          xdp_return_frame(frame);
>>                  } else {
>>                          struct sk_buff *skb = ptr;
>> @@ -1604,7 +1604,7 @@ static void free_old_xmit_skbs(struct send_queue *sq, bool in_napi)
>>                  } else {
>>                          struct xdp_frame *frame = ptr_to_xdp(ptr);
>>
>> -                       bytes += frame->len;
>> +                       bytes += xdp_get_frame_len(frame);
>>                          xdp_return_frame(frame);
>>                  }
>>                  packets++;
>> --
>> 2.19.1.6.gb485710b
>>

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