On Thu, Nov 07, 2013 at 08:24:43PM -0800, Eric Dumazet wrote:

On Fri, 2013-11-08 at 12:10 +0800, Herbert Xu wrote:

quoted

Well you still don't seem to be getting this: If you need it for
the host then you will need it even more for virt because the
network stack there is much longer.

So having it only available to the host without also giving it
to virt makes *zero* sense.

I am fine with this, but how can we know the packet is going to be
delivered to virt instead of forwarded to ethernet ?

That's the crux of our disagreement :)

My preference is that if we can make it work at least as good
as before (if not better) in the forwarding case then we won't
need to care.

And so far I haven't seen any convincing argument why this cannot
be fixed in the forwarding case.

Do we want the equivalent of 'IP early demux', done at GRO layer ? ;)

Won't help because the virt guest may end up forwarding the packet
anyway and you can't rely on it telling you that.

Cheers,
-- 
Email: Herbert Xu [off-list ref]
Home Page: http://gondor.apana.org.au/~herbert/
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