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    SubjectRe: zero-copy TCP
    Ingo Molnar wrote:
    > i believe such zero-copy send should only be allowed for drivers which can
    > guarantee correct checksums.

    Hmm, I think this shouldn't be tied too closely to TCP. E.g. you can
    probably play wonderful ALF tricks with raw sockets.

    For TCP/UDP, such a restriction may be useful, but then it shouldn't
    be visible to the application, or route changes on multi-homed systems
    with different hardware on those ports would be great fun.

    - Werner

    / Werner Almesberger, ICA, EPFL, CH /
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