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Date:   Mon, 2 Dec 2019 10:29:38 -0500
From:   "Michael S. Tsirkin" <>
To:     Jakub Kicinski <>
Cc:     Prashant Bhole <>,
        "David S . Miller" <>,
        Jason Wang <>,
        Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Jesper Dangaard Brouer <>,
        John Fastabend <>,
        Martin KaFai Lau <>,
        Song Liu <>, Yonghong Song <>,
        Andrii Nakryiko <>,,,
Subject: Re: [RFC net-next 00/18] virtio_net XDP offload

On Wed, Nov 27, 2019 at 03:40:14PM -0800, Jakub Kicinski wrote:
> > For better or worse that's how userspace is written.
> HW offload requires modifying the user space, too. The offload is not
> transparent. Do you know that?

It's true, offload of program itself isn't transparent. Adding a 3rd
interface (software/hardware/host) isn't welcome though, IMHO.


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