> -邮件原件-
> 发件人: Li,Rongqing
> 发送时间: 2020年7月21日 9:43
> 收件人: 'Magnus Karlsson'
> 抄送: Network Development ; intel-wired-lan
> ; Karlsson, Magnus
> ; Björn Töpel
> 主题: 答复: [Intel-wired-lan] [PATCH 1/2] xdp: i40e: ixgbe: ixgbevf: not flip rx
> buffer for
> -邮件原件-
> 发件人: Magnus Karlsson [mailto:magnus.karls...@gmail.com]
> 发送时间: 2020年7月20日 15:21
> 收件人: Li,Rongqing
> 抄送: Network Development ; intel-wired-lan
> ; Karlsson, Magnus
> ; Björn Töpel
> 主题: Re: [Intel-wired-lan] [PATCH 1/2] xdp: i40e: ixgbe: ixgbevf:
On Fri, Jul 17, 2020 at 8:24 AM Li RongQing wrote:
>
> i40e/ixgbe/ixgbevf_rx_buffer_flip in copy mode xdp can lead to
> data corruption, like the following flow:
>
>1. first skb is not for xsk, and forwarded to another device
> or socket queue
>2. seconds skb is for xsk, copy data to
i40e/ixgbe/ixgbevf_rx_buffer_flip in copy mode xdp can lead to
data corruption, like the following flow:
1. first skb is not for xsk, and forwarded to another device
or socket queue
2. seconds skb is for xsk, copy data to xsk memory, and page
of skb->data is released
3. rx_buf
