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: [email protected] > Subject: [PATCH RFC v2 0/4] virtio-net: add tx-hash, rx-tstamp, > tx-tstamp and tx-time > From: Willem de Bruijn <[email protected]> > > 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/v10.2.0/virtio-rx-stamps > > Currently only virtio-net is supported. Performance was tested with > pktgen which doesn't show a decrease in transfer speeds. > > As these patches are now mostly different from the initial patchset, I removed > the Signed-off-bys from Willem, so he mustn't be ashamed of what his work > evolved to ;)
Good to see this picked up. I would also still like to see support in virtio-net for HW timestamps pass-through for virtio-net. > Signed-off-by: Steffen Trumtrar <[email protected]> > --- > Changes in v2: > - rework patches to use flow filter instead of feature flag > - Link to v1: > https://lore.kernel.org/r/20231218-v6-7-topic-virtio-net-ptp-v1-0-cac92b2d8...@pengutronix.de > > --- > Steffen Trumtrar (2): > tun: support rx-tstamp > virtio-net: support receive timestamp > > drivers/net/tun.c | 30 +++++---- > drivers/net/virtio_net.c | 136 > ++++++++++++++++++++++++++++++++++++---- > include/uapi/linux/virtio_net.h | 9 +++ > 3 files changed, 151 insertions(+), 24 deletions(-) > --- > base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8 > change-id: 20231218-v6-7-topic-virtio-net-ptp-3df023bc4f4d > > Best regards, > -- > Steffen Trumtrar <[email protected]> >
