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{ "id": 1315038, "url": "http://patchwork.ozlabs.org/api/covers/1315038/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/1592905458-850-1-git-send-email-magnus.karlsson@intel.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1592905458-850-1-git-send-email-magnus.karlsson@intel.com>", "list_archive_url": null, "date": "2020-06-23T09:44:15", "name": "[net-next,v2,0/3] i40e: improve AF_XDP performance", "submitter": { "id": 72726, "url": "http://patchwork.ozlabs.org/api/people/72726/?format=api", "name": "Magnus Karlsson", "email": "magnus.karlsson@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/1592905458-850-1-git-send-email-magnus.karlsson@intel.com/mbox/", "series": [ { "id": 185220, "url": "http://patchwork.ozlabs.org/api/series/185220/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=185220", "date": "2020-06-23T09:44:15", "name": "i40e: improve AF_XDP performance", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/185220/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/1315038/comments/", "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=140.211.166.137; helo=fraxinus.osuosl.org;\n envelope-from=intel-wired-lan-bounces@osuosl.org; receiver=<UNKNOWN>)", "ozlabs.org;\n dmarc=fail (p=none dis=none) header.from=intel.com" ], "Received": [ "from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 49rhFY6rdqz9sRf\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 23 Jun 2020 19:44:32 +1000 (AEST)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 0AD8186C47;\n\tTue, 23 Jun 2020 09:44:31 +0000 (UTC)", "from fraxinus.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id 1UuA_uButoZE; Tue, 23 Jun 2020 09:44:29 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id 1FBB1864F2;\n\tTue, 23 Jun 2020 09:44:29 +0000 (UTC)", "from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133])\n by ash.osuosl.org (Postfix) with ESMTP id 61C371BF294\n for <intel-wired-lan@lists.osuosl.org>; Tue, 23 Jun 2020 09:44:27 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n by hemlock.osuosl.org (Postfix) with ESMTP id 5CB9D88FB0\n for <intel-wired-lan@lists.osuosl.org>; Tue, 23 Jun 2020 09:44:27 +0000 (UTC)", "from hemlock.osuosl.org ([127.0.0.1])\n by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n with ESMTP id CRvyx4b1jnCn for <intel-wired-lan@lists.osuosl.org>;\n Tue, 23 Jun 2020 09:44:26 +0000 (UTC)", "from mga01.intel.com (mga01.intel.com [192.55.52.88])\n by hemlock.osuosl.org (Postfix) with ESMTPS id A9B7088D67\n for <intel-wired-lan@lists.osuosl.org>; Tue, 23 Jun 2020 09:44:26 +0000 (UTC)", "from orsmga004.jf.intel.com ([10.7.209.38])\n by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 23 Jun 2020 02:44:26 -0700", "from mkarlsso-mobl.ger.corp.intel.com (HELO localhost.localdomain)\n ([10.252.33.84])\n by orsmga004.jf.intel.com with ESMTP; 23 Jun 2020 02:44:22 -0700" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6", "IronPort-SDR": [ "\n Y2J3/INucMPxVkkGRtrsyN/Mnkcih9zsgFZtDg+JyWuXCaY9Bf+XG7McSUTlTybr+3afKr9/Ya\n rQqkbUmrc04A==", "\n 0z+W89ZQa5LaKnAFhUH+eLcTsWYsMLhtMCYGMM9UtrmMxjh4uXaNDSKaUZO1K7u+Fy5oQLsuw9\n +W27FpUUZlgA==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6000,8403,9660\"; a=\"162099548\"", "E=Sophos;i=\"5.75,270,1589266800\"; d=\"scan'208\";a=\"162099548\"", "E=Sophos;i=\"5.75,270,1589266800\"; d=\"scan'208\";a=\"422947135\"" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "From": "Magnus Karlsson <magnus.karlsson@intel.com>", "To": "magnus.karlsson@intel.com, bjorn.topel@intel.com,\n intel-wired-lan@lists.osuosl.org, jeffrey.t.kirsher@intel.com,\n sridhar.samudrala@intel.com", "Date": "Tue, 23 Jun 2020 11:44:15 +0200", "Message-Id": "<1592905458-850-1-git-send-email-magnus.karlsson@intel.com>", "X-Mailer": "git-send-email 2.7.4", "Subject": "[Intel-wired-lan] [PATCH net-next v2 0/3] i40e: improve AF_XDP\n performance", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n <intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Cc": "maciejromanfijalkowski@gmail.com, maciej.fijalkowski@intel.com,\n netdev@vger.kernel.org", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "This small series improves AF_XDP performance for the i40e NIC. The\nfirst patch optimizes the Tx completion path for AF_XDP. The second\none removes a division in the data path for the normal SKB path, XDP\nas well as AF_XDP. Finally, the third one moves the test of a full Tx\nring to outside the send loop. Overall, the throughput of the l2fwd\napplication in xpdsock improves with around 8% on my machine.\n\nv1->v2:\n* Removed unnecessary variables in i40e_clean_xdp_tx_irq [Sridhar]\n* Added one further optimization to Tx path in a new patch [Sridhar]\n* Fixed two API documentation warnings with make W=1\n\nThis patch has been applied against commit 8af7b4525acf (\"Merge branch\n'net-atlantic-additional-A2-features'\")\n\nThanks: Magnus\n\nMagnus Karlsson (3):\n i40e: optimize AF_XDP Tx completion path\n i40e: eliminate division in napi_poll data path\n i40e: move check of full Tx ring to outside of send loop\n\n drivers/net/ethernet/intel/i40e/i40e_txrx.c | 17 ++++++---\n drivers/net/ethernet/intel/i40e/i40e_txrx.h | 1 +\n drivers/net/ethernet/intel/i40e/i40e_xsk.c | 57 +++++++++++++----------------\n drivers/net/ethernet/intel/i40e/i40e_xsk.h | 3 +-\n 4 files changed, 39 insertions(+), 39 deletions(-)\n\n--\n2.7.4" }