On Mon, Dec 28, 2020 at 11:22:30AM -0500, Willem de Bruijn wrote: > From: Willem de Bruijn <will...@google.com> > > RFC for three new features to the virtio network device: > > 1. pass tx flow hash and state to host, for routing + telemetry > 2. pass rx tstamp to guest, for better RTT estimation > 3. pass tx tstamp to host, for accurate pacing > > All three would introduce an extension to the virtio spec. > I assume this would require opening three ballots against v1.2 at > https://www.oasis-open.org/committees/ballots.php?wg_abbrev=virtio > > This RFC is to informally discuss the proposals first. > > The patchset is against v5.10. Evaluation additionally requires > changes to qemu and at least one back-end. I implemented preliminary > support in Linux vhost-net. Both patches available through github at > > https://github.com/wdebruij/linux/tree/virtio-net-txhash-1 > https://github.com/wdebruij/qemu/tree/virtio-net-txhash-1
Any data on what the benefits are? > Willem de Bruijn (3): > virtio-net: support transmit hash report > virtio-net: support receive timestamp > virtio-net: support transmit timestamp > > drivers/net/virtio_net.c | 52 +++++++++++++++++++++++++++++++-- > include/uapi/linux/virtio_net.h | 23 ++++++++++++++- > 2 files changed, 71 insertions(+), 4 deletions(-) > > -- > 2.29.2.729.g45daf8777d-goog
