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    SubjectRe: [PATCH RFC] tun: experimental zero copy tx support
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    On Mon, 2012-05-14 at 21:39 +0300, Michael S. Tsirkin wrote:
    > > Hello Mike,
    > >
    > > Have you tested this patch? I think the difference between macvtap
    > and
    > > tap is tap forwarding the packet to bridge. The zerocopy is disabled
    > in
    > > this case.
    > >
    > > Shirley
    >
    > Testing in progress, but the patchset I pointed to enables
    > zerocopy with bridge.

    Hello Mike,

    You meant this patch or another patchset for enabling bridge zerocopy?

    I remembered we disabled forward skb zerocopy since the user space
    program might hold the buffers too long or forever.

    In tap/bridge case, when the tx buffers will be released?

    Thanks
    Shirley



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