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AJvYcCVysurSOgWNuK1Ymg2WfWu/5ce/sQzx+Xo9ycLA78WNsAFH7/iYu4GLncb8e3i+EPjUWfW6h+Kk1hab4tY=@vger.kernel.org X-Gm-Message-State: AOJu0Ywc5XPGlbyorhNtHd21SHP9FSw+y8KK35Iy0SuWhcYf02enzV/I oqSezc5T6V0m784QDq6XG3xfC6fmFeKfOO52fcjb3raM0MnbovVS0AF5gydjnPo5Xoszq8CBRoD C80gXceD8MCSK3xXTXQWr82PtVlz4Jb8A2dW/PCDz X-Gm-Gg: AY/fxX5Ls3nIqVMcBvLeA7ynBFKcHzJlnp7P3goXP0y6ub+Qe28FWT58VqZ1owkT3uJ 1fNw4C/6XM7Cgw8Rk5UlS72n1IamKAT7SKe0sGQRSndyv7L18285EdZz3voAgo/55zNeZPso0X7 n8iOYVB/aQbttXX2H6LRgykDbOH6rJNysKmIw9B4m3jLzxn84Tl1NOJ/CNj5IihKvHsd94B3qlE uGqiVQov/oFcFOlQr8BLeQer0tD209C5DrXHZ5a/CQC6ub4L1Leq/qq1VlnVs/PfK38ePo= X-Received: by 2002:a05:6512:639b:20b0:59b:57ed:3622 with SMTP id 2adb3069b0e04-59b87c43391mr83611e87.1.1768159139730; Sun, 11 Jan 2026 11:18:59 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20251223194649.3050648-1-almasrymina@google.com> <43dafae2-e1f1-44ce-91c1-7fc236966f58@molgen.mpg.de> In-Reply-To: <43dafae2-e1f1-44ce-91c1-7fc236966f58@molgen.mpg.de> From: Mina Almasry Date: Sun, 11 Jan 2026 11:18:45 -0800 X-Gm-Features: AZwV_QjQhMoevwA58NGfYpT2i-RPV2KkpfFJ2IlmuJKbZfsyf_TMKOH2OuGi6DA Message-ID: Subject: Re: [Intel-wired-lan] [PATCH iwl-next v4] idpf: export RX hardware timestamping information to XDP To: Paul Menzel Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, YiFei Zhu , Alexei Starovoitov , Daniel Borkmann , "David S. Miller" , Jakub Kicinski , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Tony Nguyen , Przemek Kitszel , Andrew Lunn , Eric Dumazet , Paolo Abeni , Alexander Lobakin , Richard Cochran , intel-wired-lan@lists.osuosl.org, Aleksandr Loktionov Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sat, Jan 10, 2026 at 12:36=E2=80=AFAM Paul Menzel wrote: > > Dear Mina, > > > Thank you for your patch. Some minor comments, should you resend. > Thanks, looks like I have reviews and this is on its way, but should I resend I will fix the minor comments. > Am 23.12.25 um 20:46 schrieb Mina Almasry via Intel-wired-lan: > > From: YiFei Zhu > > > > The logic is similar to idpf_rx_hwtstamp, but the data is exported > > as a BPF kfunc instead of appended to an skb to support grabbing > > timestamps in xsk packets. > > > > A idpf_queue_has(PTP, rxq) condition is added to check the queue > > supports PTP similar to idpf_rx_process_skb_fields. > > > > Tested using an xsk connection and checking xdp timestamps are > > retreivable in received packets. > > retr*ie*vable > > It=E2=80=99d be great if you could share the commands. > I don't have easy repro to share in the commit message. The test involves hacking up the xsk_rr Sami used for his busypolling patch to enable xdp metadata and retrieve timestamps, or (what I did) actually set up openonload with this patch and test onload can get the timestamps. Let me see what I can do, but it's likely too much context for someone unfamiliar to piece together. --=20 Thanks, Mina