From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 433DAC43458 for ; Mon, 29 Jun 2026 20:02:14 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 253AA40150; Mon, 29 Jun 2026 22:02:13 +0200 (CEST) Received: from mail-dy1-f174.google.com (mail-dy1-f174.google.com [74.125.82.174]) by mails.dpdk.org (Postfix) with ESMTP id A5901400D5 for ; Mon, 29 Jun 2026 22:02:11 +0200 (CEST) Received: by mail-dy1-f174.google.com with SMTP id 5a478bee46e88-30eac9abd79so2816044eec.1 for ; Mon, 29 Jun 2026 13:02:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20251104.gappssmtp.com; s=20251104; t=1782763330; x=1783368130; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=xF+TNB0ANA+xPCC/R6HmvJTCBWn+cxTSIydLdNEV0QU=; b=tpfxkv6HEwVFFwe2F+UmdTibwUunBU/jkAOAcIoSSAJKHJkdU2OdotgWSqWQ4kWk4j tYkc+me78mOwny8qrC5CixY0frWVKbHgodFvQNqVdzPMXC5M4XOXG1at58WDIZ/TmAfM xuyiEQdOI61rARkNMsbEykkPNxPF7TRGX6A6VRfowfutsKZ3N+q9waBbodsD61XUPRnT UBVYoae628O3jB8ehmlk3oAtAgDzhJPkesLJQ+9p4uH6MNWEQBSIOk1o/QLFhIWLSlHG OoJbcPORfAe+sqD1cyq4fbXj1SoSHvp6vWg6SR4Uw4vLTBX+IfGEdTTROdvCUrQaHM4O Mn+w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782763330; x=1783368130; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=xF+TNB0ANA+xPCC/R6HmvJTCBWn+cxTSIydLdNEV0QU=; b=DymORjWYcGVq2UgvzW/SqfdALRpYRgP0lsnvSejR4/qZS9Cw8EBwpGVhleAJCTXSGH m3wsQsieMDvftxYvGoPIhdHXzLlwXTI157aaX2M2av2CCRMIVMTkqHP6l38XAFjjkD/e c7uGWzojkB17XnvxHXoyQrGiFEfwvb9zvxsaIggjLdEpHtP1oQYQMVPlGBxXcGgrQfLt l9bKVZvr3+ET4Ki/4eZiUuqbQ5Ad/e7bhUUzsObDtEclcTkW2Ay6qufqG2m3FcbBL/uA jCk116BydQCuG3WxvjWeknUzP4O0NbDK+fnBYpJFzBMSZojp1kTq4222OrXXoTodxh+N 8KUA== X-Forwarded-Encrypted: i=1; AHgh+RogXrx6KONkhuzCjJwDdq/Y2wuH64arbGe+whu0/1LApW6QwG2JA0MVef5Xxj+sJbY0WNU=@dpdk.org X-Gm-Message-State: AOJu0YyC+wMr3GtSm+ofFhytKNZ7UhuQR6kQUfaYPRA69Ncty8mKTfWR hn4id0+9gsq/mF1uUhnuI+ovt0d0sc61bOfY8amv0hIaiz/ctNm2f9OzhuW0Q4g8XOc= X-Gm-Gg: AfdE7ckvBwcFt/q4WxpxlEvsjfHfMd7V6bKTe8pI8vjRd7BLm/W0v6lULFOtCq4I50v R1c8Yd+YCEvsVXTshtT3oqQ/drlVPKQUSISvll86u+i6MmjpAf9a997aODgfkfwhnjGa78d2dR2 IOq9892dZ4T9z7Zggz2eemSvc26g6w7f54ZNUFSFQILWAkNA+vqfQuw95AF4i+3KDaZnJNNko52 3hTVBe4sFhTWTuRSKC6ViYJubWUE0Wf9NzciMD51cG47YD2FOneHheD9Rycx/qWE/ajUlO9dp4t MzTBH/hMKJN29TkIQe8dXFXf01JdLmdOhrJZItthOkSjoJufEIJwMADtOijtbpmVaYtfOx+DeZg uj81Z+3i+r3oVLm/Chm4k2mfcimuo3EhWrc8ewsrLjbkoye+K71F+JcJxsHzvPQmSjexXvuMnuI Lv/tYhzHIilMvpJpS2vt1iSUATNxihiUb9JcL/iW6OsuIXVthhy/kIEA== X-Received: by 2002:a05:7300:3251:b0:2ea:3370:6e51 with SMTP id 5a478bee46e88-30ee11ae39cmr660376eec.4.1782763330066; Mon, 29 Jun 2026 13:02:10 -0700 (PDT) Received: from phoenix.local (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-30ee2cd21bcsm1234566eec.0.2026.06.29.13.02.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Jun 2026 13:02:09 -0700 (PDT) Date: Mon, 29 Jun 2026 13:02:05 -0700 From: Stephen Hemminger To: Joshua Washington Cc: Mark Blasko , dev@dpdk.org, Ciara Loftus , Maryam Tahhan , "Jasper Tran O'Leary" Subject: Re: [PATCH] net/af_xdp: add Rx metadata and dynamic timestamping support Message-ID: <20260629130205.5ed0e44b@phoenix.local> In-Reply-To: References: <20260623215325.814776-1-blasko@google.com> <20260623150638.266d8574@phoenix.local> <20260629103804.3d4154bb@phoenix.local> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On Mon, 29 Jun 2026 12:10:27 -0700 Joshua Washington wrote: > These are all very good points for ensuring an airtight abstraction. > However, I'd like to note that neither of the kernel-bound PMD > interfaces (pcap, AF_PACKET) have support for the `read_clock` op. I > am not certain of the reason for this, but I suspect it's because > ethtool IOCTLs already cover that functionality. This patch's > implementation follows the other implementations pretty closely, > differing only in how the timestamp is extracted. Yes, that needs to be fixed :-)