Re: [PATCH RFC v3 0/2] virtio-net: add flow filter for receive timestamps

[Steffen Trumtrar <s.trumtrar@pengutronix.de>]

On 2026-09-21 at 21:31 -04, Willem de Bruijn <willemdebruijn.kernel@gmail.com> wrote:

> Steffen Trumtrar wrote:
> > This series tries to pick up the work on the virtio-net timestamping
> > feature from Willem de Bruijn.
> > 
> > Original series
> >     Message-Id: 20210208185558.995292-1-willemdebruijn.kernel@gmail.com
> >     Subject: [PATCH RFC v2 0/4] virtio-net: add tx-hash, rx-tstamp,
> >     tx-tstamp and tx-time
> >     From: Willem de Bruijn <willemb@google.com>
> > 
> >     RFC for four new features to the virtio network device:
> > 
> >     1. pass tx flow state to host, for routing + telemetry
> >     2. pass rx tstamp to guest, for better RTT estimation
> >     3. pass tx tstamp to guest, idem
> >     3. pass tx delivery time to host, for accurate pacing
> > 
> >     All would introduce an extension to the virtio spec.
> > 
> > The changes in this series are to the driver side. For the changes to qemu see:
> >     https://github.com/strumtrar/qemu/tree/v11.0.1/virtio-rx-stamps    
> 
> What is the plan wrt the virtio spec? +1 on demonstrating working code
> first for feasibility.
> 
> Does this now also need a spec proposal to virtio-comment@lists.linux.dev?

If this shows to be the right direction, I'd create the spec proposal. I find writing the code and see if it works much easier ;)


Steffen

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