From: Jesper Dangaard Brouer <jbrouer@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>,
netdev@vger.kernel.org, bpf@vger.kernel.org, ast@kernel.org,
daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com,
mst@redhat.com, davem@davemloft.net, kuba@kernel.org,
Lorenzo Bianconi <lorenzo.bianconi@redhat.com>,
Eelco Chaudron <echaudro@redhat.com>,
David Ahern <dsahern@kernel.org>,
"Jubran, Samih" <sameehj@amazon.com>,
"Machulsky, Zorik" <zorik@amazon.com>,
Shay Agroskin <shayagr@amazon.com>
Subject: Re: [PATCH netdev 1/2] virtio: add module option to turn off guest offloads
Date: Fri, 13 Nov 2020 11:55:15 +0100 [thread overview]
Message-ID: <20201113115515.3886b224@carbon> (raw)
In-Reply-To: <f078cd84-4d65-ceb1-e7a9-75ec22da5823@redhat.com>
On Fri, 13 Nov 2020 09:05:19 +0800
Jason Wang <jasowang@redhat.com> wrote:
> On 2020/11/12 下午4:11, Xuan Zhuo wrote:
> > * VIRTIO_NET_F_GUEST_CSUM
> > * VIRTIO_NET_F_GUEST_TSO4
> > * VIRTIO_NET_F_GUEST_TSO6
> > * VIRTIO_NET_F_GUEST_ECN
> > * VIRTIO_NET_F_GUEST_UFO
> > * VIRTIO_NET_F_MTU
> >
> > If these features are negotiated successfully, it may cause virtio-net to
> > receive large packages, which will cause xdp to fail to load.
I really want the people that implement XDP multi-buffer support, to
think about how this can help virtio-net overcome these limitations.
IHMO XDP need to evolve to support these features for virtio-net.
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2020-11-13 10:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1605184791.git.xuanzhuo@linux.alibaba.com>
[not found] ` <5b2e0f71d5feddd9fe23babaad60114208731a59.1605184791.git.xuanzhuo@linux.alibaba.com>
2020-11-13 1:05 ` [PATCH netdev 1/2] virtio: add module option to turn off guest offloads Jason Wang
2020-11-13 10:55 ` Jesper Dangaard Brouer [this message]
[not found] ` <c2781b22ebfab5854afc1f6a1eb77b5018b11ccd.1605184791.git.xuanzhuo@linux.alibaba.com>
2020-11-13 1:06 ` [PATCH netdev 2/2] virtio, xdp: Allow xdp to load, even if there is not enough queue Jason Wang
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