[ovs-dev] [PATCH 0/3] userspace-tso: Improve L4 csum offload support.

William Tu u9012063 at gmail.com
Wed Apr 15 23:49:28 UTC 2020


On Fri, Feb 28, 2020 at 7:34 AM Ilya Maximets <i.maximets at ovn.org> wrote:
>
> On 2/14/20 2:03 PM, Flavio Leitner wrote:
> > This patchset disables unsupported offload features for vhost
> > device such as UFO and ECN.
> >
> > Then it includes UDP checksum offload as a must have to enable
> > userspace TSO, but leave SCTP as optional. Only a few drivers
> > support SCTP checksum offload and the protocol is not widely
> > used.

Hi Flavio and Ilya,

I have a question about this.
If we do "other_config:userspace-tso-enable=true", it enables both
the TSO and CSUM offload.
Can we enable only the CSUM offload, but not TSO?
So making it a separate configurations?

Because currently, all the "make check-system-userspace" has to add
$ ethtool -K $1 tx off
due to no checksum support.
If we make CSUM offload enabled by default, so we don't need to turn
off tx offload?

Regards,
William


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