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Date:   Tue, 1 Nov 2016 07:06:02 +0000
From:   "Mintz, Yuval" <>
To:     Tom Herbert <>
CC:     netdev <>
Subject: RE: XDP question - how much can BPF change in xdp_buff?

> BTW, are we considering some offload where the eBPF would return  a set of
> changes [based on some pre-set capabilities set by driver] done on buffer and let
> the HW offload those?
> I understand end goal is eBPF hw-offloading, but seems like there are a lot of
> existing offload facilities that might be leveraged.

On second thought, given that the program is likely to change only a
small set of fields [as opposed to building whole new buffers],
probably fixing the csum isn't going to be much costlier [if at all] then the logic
that would be required to determine whether the device would be able to offload

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