From: Willem de Bruijn <willemb@xxxxxxxxxx> 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 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 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
