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[35.245.46.111]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-672c766dfcbsm157903d50.17.2026.09.21.18.31.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Sep 2026 18:31:05 -0700 (PDT) Date: Mon, 21 Sep 2026 21:31:04 -0400 From: Willem de Bruijn To: Steffen Trumtrar , "Michael S. Tsirkin" , Xuan Zhuo , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Willem de Bruijn , Andrew Lunn , =?UTF-8?B?RXVnZW5pbyBQw6lyZXo=?= , Jason Wang , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Jason Wang Cc: virtualization@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, Steffen Trumtrar Message-ID: In-Reply-To: <20260921-v6-7-topic-virtio-net-ptp-v3-0-3350851c4f88@pengutronix.de> References: <20260921-v6-7-topic-virtio-net-ptp-v3-0-3350851c4f88@pengutronix.de> Subject: Re: [PATCH RFC v3 0/2] virtio-net: add flow filter for receive timestamps Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit 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 > > 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?