Re: [PATCH net-next v5 1/9] xen-netback: Introduce TX grant map definitions

From: Ian Campbell
Date: Mon Feb 24 2014 - 06:13:46 EST


On Fri, 2014-02-21 at 01:19 +0000, Zoltan Kiss wrote:
> I don't know if the guest expects that slots for the same packet
> comes back at the same time.

I don't think the guest is allowed to assume that. In particular they
aren't allowed to assume the the slots will be freed in the order they
were presented on the ring. There used to be a debug patch to
deliberately permute the responses, perhaps it was in the old
netchannel2 tree.

Ian.

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