Re: [PATCH RFC v3 0/2] virtio-net: add flow filter for receive timestamps
From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Date: 2026-09-22 01:31:08
Also in:
bpf, lkml, virtualization
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 [off-list ref]
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?