netdev - Re: [Intel-wired-lan] [bug ?] i40e_rx_buffer_flip should not be called for redirected xsk copy mode

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Message-ID: <CAJ8uoz3Qrh7gTtsOPiz=Z_vHEk+ZoC35cEZ1audDNu5G5pogZg@mail.gmail.com>
Date:   Thu, 16 Jul 2020 06:39:20 +0200
From:   Magnus Karlsson <magnus.karlsson@...il.com>
To:     "Li,Rongqing" <lirongqing@...du.com>
Cc:     intel-wired-lan <intel-wired-lan@...ts.osuosl.org>,
        Björn Töpel <bjorn.topel@...el.com>,
        "Karlsson, Magnus" <magnus.karlsson@...el.com>,
        Netdev <netdev@...r.kernel.org>
Subject: Re: [Intel-wired-lan] [bug ?] i40e_rx_buffer_flip should not be
 called for redirected xsk copy mode

On Tue, Jul 14, 2020 at 1:05 PM Li,Rongqing <lirongqing@...du.com> wrote:
>
>
>
> > -----邮件原件-----
> > 发件人: Li,Rongqing
> > 发送时间: 2020年7月6日 14:38
> > 收件人: 'Magnus Karlsson' <magnus.karlsson@...il.com>
> > 抄送: intel-wired-lan <intel-wired-lan@...ts.osuosl.org>; Björn Töpel
> > <bjorn.topel@...el.com>; Karlsson, Magnus <magnus.karlsson@...el.com>;
> > Netdev <netdev@...r.kernel.org>
> > 主题: 答复: [Intel-wired-lan] [bug ?] i40e_rx_buffer_flip should not be called
> > for redirected xsk copy mode
> >
> >
> >
> > > -----邮件原件-----
> > > 发件人: Magnus Karlsson [mailto:magnus.karlsson@...il.com]
> > > 发送时间: 2020年7月6日 14:13
> > > 收件人: Li,Rongqing <lirongqing@...du.com>
> > > 抄送: intel-wired-lan <intel-wired-lan@...ts.osuosl.org>; Björn Töpel
> > > <bjorn.topel@...el.com>; Karlsson, Magnus <magnus.karlsson@...el.com>;
> > > Netdev <netdev@...r.kernel.org>
> > > 主题: Re: [Intel-wired-lan] [bug ?] i40e_rx_buffer_flip should not be
> > > called for redirected xsk copy mode
> > >
> > > Thank you RongQing for reporting this. I will take a look at it and
> > > produce a patch.
> > >
> > > /Magnus
> >
>
> Ping

My apologies RongQing, but it is taking longer than expected due to
key people being on vacation during this summer period. We are
debating weather the simple fix you provided covers all cases.
Hopefully it does, but we just want to make sure. The fix is needed in
four drivers: the ones you mention plus ice.

/Magnus

>
> -Li