From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-xf35.google.com (mail-qv1-xf35.google.com [IPv6:2607:f8b0:4864:20::f35]) by mail.toke.dk (Postfix) with ESMTPS id 7D6D8A432A1 for ; Mon, 4 Dec 2023 15:59:35 +0100 (CET) Authentication-Results: mail.toke.dk; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=mEGnIDPt Received: by mail-qv1-xf35.google.com with SMTP id 6a1803df08f44-67ad5b37147so1945126d6.2 for ; Mon, 04 Dec 2023 06:59:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1701701973; x=1702306773; darn=xdp-project.net; h=content-transfer-encoding:mime-version:subject:references :in-reply-to:message-id:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=AEtXrarlRuJeVsqzYM4zb29M+XdIdGWvdhen3lEwn48=; b=mEGnIDPtOEG2bYZKbbnk4twvID8VJBVdQ85qCGvkU764CpsK6QajiwQmvx0EZdAMLu wYJpfFLatNd5yJzI+rgHRXfZTXpcbYzVHHUNofwL27HEc9zwQDKAyYqAA2bzDxq5Ko3W V/xXQKusEg2ZWZ7zSCgYKmtNdHhgWO/OrGufCsyLRlR0RVFzz0lwyy3AWueqFxA6h8N/ Gb6kGYHkf3RwPp4/k2PbERbDBtQ4PDmyWXzWS94RiT62KvAYWzRm8vOWeAnPKnHMhnl4 fRdYC11AohZNBxal6qgCu/jCZLp4Y25t76LggZBPbfvJHPezRDyxRdW3ihnffh89LBRf AbWg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701701973; x=1702306773; h=content-transfer-encoding:mime-version:subject:references :in-reply-to:message-id:cc:to:from:date:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=AEtXrarlRuJeVsqzYM4zb29M+XdIdGWvdhen3lEwn48=; b=ojxQCzvS/GtBSqsQLO1sdi1lYNC/STEOPOZMIVvvP3jHO5IpIySMtRK0hgQjTvPAxn WTUNGNacpyURLozJUR7U54EapQ7IPSW1u4Dx8qjZPAaRvJFpszMxd2SkVYfT6cdH89Td T1a4BK0HZfr79aNbY3hBtzTtiLvOdJlTtEJXqA3ScW3Yh0nZBj2jmA/6YjumWDLI7o3i RiQaLE9EVL/iaTshuQAt+yP2YkrYMVSEOU7eDu9saEsOoWhfaHFNq4s01wQi7M7Vb+m7 jxjRvEZxXk/HBBQRZOHQMyRMfQfUTRe3tINVXAKCb9lbyB7rk9GeDmkeD4FPQzhPEx9X 5V+g== X-Gm-Message-State: AOJu0YzqguQesQ8Eo302MMYYLmrwYdP24gwTYYXsKi/M/+uOMAmWni8/ bb2UXcZOklZtlgn97eQXOwM= X-Google-Smtp-Source: AGHT+IF3TI2GZnZQV+WfJ1hnsDQUoFtybL3uFMJvxXaDS9FsOiVBo0wGKwsO+64zak8Bz9G8HmuLxw== X-Received: by 2002:a05:6214:3902:b0:67a:b6a3:834e with SMTP id nh2-20020a056214390200b0067ab6a3834emr5393712qvb.127.1701701973169; Mon, 04 Dec 2023 06:59:33 -0800 (PST) Received: from localhost (114.66.194.35.bc.googleusercontent.com. [35.194.66.114]) by smtp.gmail.com with ESMTPSA id mh10-20020a056214564a00b0067a9235d5f0sm3704034qvb.105.2023.12.04.06.59.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Dec 2023 06:59:32 -0800 (PST) Date: Mon, 04 Dec 2023 09:59:31 -0500 From: Willem de Bruijn To: Jesper Dangaard Brouer , Song Yoong Siang , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jonathan Corbet , Bjorn Topel , Magnus Karlsson , Maciej Fijalkowski , Jonathan Lemon , Alexei Starovoitov , Daniel Borkmann , John Fastabend , Stanislav Fomichev , Lorenzo Bianconi , Tariq Toukan , Willem de Bruijn , Maxime Coquelin , Andrii Nakryiko , Mykola Lysenko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Hao Luo , Jiri Olsa , Shuah Khan , Alexandre Torgue , Jose Abreu Message-ID: <656de953bcc82_2e983e2949a@willemb.c.googlers.com.notmuch> In-Reply-To: <8e20031c-83cb-4927-ab6a-e6b4840e1e42@kernel.org> References: <20231203165129.1740512-1-yoong.siang.song@intel.com> <20231203165129.1740512-4-yoong.siang.song@intel.com> <8e20031c-83cb-4927-ab6a-e6b4840e1e42@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Message-ID-Hash: KLNYZB4VHJE7ZFL62HWOHVVNBWX7JRQM X-Message-ID-Hash: KLNYZB4VHJE7ZFL62HWOHVVNBWX7JRQM X-MailFrom: willemdebruijn.kernel@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, bpf@vger.kernel.org, xdp-hints@xdp-project.net, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org X-Mailman-Version: 3.3.8 Precedence: list Subject: [xdp-hints] Re: [PATCH bpf-next v3 3/3] selftests/bpf: add Launch Time request to xdp_hw_metadata List-Id: XDP hardware hints design discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Jesper Dangaard Brouer wrote: > > > On 12/3/23 17:51, Song Yoong Siang wrote: > > This patch is tested with stmmac on Intel Tiger Lake platform. Refer to > > result below, the delta between pre-determined launch time and actual HW > > transmit complete time is around 24 us. > > Is there any NIC setup (e.g. ethtool/qdisc) requirements to enable HW > for this feature? Judging from how we currently use this with FQ and ETF, no. See for instance tools/testing/selftests/net/so_txtime.sh