Cover Letter Detail
Show a cover letter.
GET /api/covers/1040454/?format=api
{ "id": 1040454, "url": "http://patchwork.ozlabs.org/api/covers/1040454/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20190212085205.7848-1-bjorn.topel@gmail.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": "<20190212085205.7848-1-bjorn.topel@gmail.com>", "list_archive_url": null, "date": "2019-02-12T08:52:03", "name": "[0/2] i40e: fix regression that enables AF_XDP ZC unconditionally", "submitter": { "id": 70569, "url": "http://patchwork.ozlabs.org/api/people/70569/?format=api", "name": "Björn Töpel", "email": "bjorn.topel@gmail.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20190212085205.7848-1-bjorn.topel@gmail.com/mbox/", "series": [ { "id": 91409, "url": "http://patchwork.ozlabs.org/api/series/91409/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=91409", "date": "2019-02-12T08:52:03", "name": "i40e: fix regression that enables AF_XDP ZC unconditionally", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/91409/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/1040454/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\tspf=pass (mailfrom) smtp.mailfrom=osuosl.org\n\t(client-ip=140.211.166.137; helo=fraxinus.osuosl.org;\n\tenvelope-from=intel-wired-lan-bounces@osuosl.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org;\n\tdmarc=fail (p=none dis=none) header.from=gmail.com", "ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n\tunprotected) header.d=gmail.com header.i=@gmail.com\n\theader.b=\"eHpNRkVZ\"; dkim-atps=neutral" ], "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\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 43zGfQ06Ncz9s4Z\n\tfor <incoming@patchwork.ozlabs.org>;\n\tTue, 12 Feb 2019 19:53:49 +1100 (AEDT)", "from localhost (localhost [127.0.0.1])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id C2C6F85247;\n\tTue, 12 Feb 2019 08:53:45 +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 1i8L4pHsN1jC; Tue, 12 Feb 2019 08:53:28 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby fraxinus.osuosl.org (Postfix) with ESMTP id D43B284789;\n\tTue, 12 Feb 2019 08:53:21 +0000 (UTC)", "from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138])\n\tby ash.osuosl.org (Postfix) with ESMTP id 276C51BF957\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 12 Feb 2019 08:52:31 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby whitealder.osuosl.org (Postfix) with ESMTP id 2163185CA8\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 12 Feb 2019 08:52:31 +0000 (UTC)", "from whitealder.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id k3tPDoOnVhg5 for <intel-wired-lan@lists.osuosl.org>;\n\tTue, 12 Feb 2019 08:52:30 +0000 (UTC)", "from mail-pg1-f194.google.com (mail-pg1-f194.google.com\n\t[209.85.215.194])\n\tby whitealder.osuosl.org (Postfix) with ESMTPS id A0D598455E\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 12 Feb 2019 08:52:30 +0000 (UTC)", "by mail-pg1-f194.google.com with SMTP id w7so927778pgp.13\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tTue, 12 Feb 2019 00:52:30 -0800 (PST)", "from btopel-mobl.ger.intel.com ([134.134.139.83])\n\tby smtp.gmail.com with ESMTPSA id\n\tu73sm24461606pfa.169.2019.02.12.00.52.26\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tTue, 12 Feb 2019 00:52:29 -0800 (PST)" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;\n\th=from:to:cc:subject:date:message-id:mime-version\n\t:content-transfer-encoding;\n\tbh=F6fxo9K/Tx8CYgqIa9FfGLNNwY3MyB0wszmqmcanFXQ=;\n\tb=eHpNRkVZwVlpmyHkkXYuxLzWOit/gy6mt2wkpa4T0R+tScE7pSdMy2fBcrh8ZeUGlY\n\thcp1PZXV7CFPQ8F6vJEWTkCV2OMXd1Mb1lGP1fbGwQ2hjhit47GJ5q0eV7oG2oQ11il1\n\tgiR1vhD6zlkedKla5UeLraURziG0k/o6zm7UkIOTmi8+ZD7M6VMsE/VkbOaJO/YoIZcd\n\tGwcMljGiPV6gg+143bDWOPmSzyTi25v8qByJ/Ty9L5JMr3AMqJgVB5lw/lkqd2vMOmbC\n\tKqHQEm+ORgm14mO4iHL+wjUwxG8nuksavArCdhs4Sk8Ewby/1xr//7DZUj/K8YHME75b\n\ttwdA==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version\n\t:content-transfer-encoding;\n\tbh=F6fxo9K/Tx8CYgqIa9FfGLNNwY3MyB0wszmqmcanFXQ=;\n\tb=eZw46qJoQSCGFSGodyi/ooraVRsJ/gGYSVW04K3nQyMz54BO3zfIWHcvOfqLCHCk+T\n\tDDhjyuY8PmfU0GmwHNuqSI8BVfB0Iecqz3xCO0o9z6tzlNh9taxW6R6MBbk19/GGkAUj\n\t4r31sU7EdcFTBfxNjpy4Trw7PuG/Br67g+M9WOsgJjwsWkVneb6AIQWrxYBbCZJ3KRxG\n\ttPfxvav2I9fUgvXLDuzQXyx2fm8dlhPUlEw9PO62sAxZTl36kfXsij+l61TR0ra26E6a\n\toDgsFUDX5dOuwNZCOoJR05uKipbIt1hztZDWxdRhj8CWJSLHwXZakrtzno6KUCtKu9Lh\n\tUyew==", "X-Gm-Message-State": "AHQUAuaNVlLKYiJu5a5+3nA+Nbf8KI8Oe4C00nIMqnJ+IruZEfIMQYaa\n\tRrPj/IKUpsXOcpb812mYeKCiFuVCxyHIEg==", "X-Google-Smtp-Source": "AHgI3IZ6D7jlOL4ZN+4L1pxkiLIaCysbLixWEg182zeuCWDi0aWlfbNMhcFsPXwWepfHcWpn//Jlmw==", "X-Received": "by 2002:a63:3541:: with SMTP id\n\tc62mr2621525pga.191.1549961549979; \n\tTue, 12 Feb 2019 00:52:29 -0800 (PST)", "From": "=?utf-8?b?QmrDtnJuIFTDtnBlbA==?= <bjorn.topel@gmail.com>", "To": "intel-wired-lan@lists.osuosl.org", "Date": "Tue, 12 Feb 2019 09:52:03 +0100", "Message-Id": "<20190212085205.7848-1-bjorn.topel@gmail.com>", "X-Mailer": "git-send-email 2.19.1", "MIME-Version": "1.0", "Subject": "[Intel-wired-lan] [PATCH 0/2] i40e: fix regression that enables\n\tAF_XDP ZC unconditionally", "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\t<intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<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\t<mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Cc": "magnus.karlsson@intel.com, netdev@vger.kernel.org", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "This series addresses a recent AF_XDP zero-copy regression.\n\nIn commit f3fef2b6e1cc (\"i40e: Remove umem from VSI\") a regression was\nintroduced; When the VSI was reset, the setup code would try to enable\nAF_XDP ZC unconditionally (as long as there was a umem placed in the\nnetdev._rx struct). Here, we add a bitmap to the VSI that tracks if a\ncertain queue pair has been \"zero-copy enabled\" via the ndo_bpf. The\nbitmap is used in i40e_xsk_umem, and enables zero-copy if and only if\nXDP is enabled, the corresponding qid in the bitmap is set and the\numem is non-NULL.\n\nThanks,\nBjörn\n\n\nBjörn Töpel (2):\n i40e: move i40e_xsk_umem function\n i40e: add tracking of AF_XDP ZC state for each queue pair\n\n drivers/net/ethernet/intel/i40e/i40e.h | 16 ++----------\n drivers/net/ethernet/intel/i40e/i40e_main.c | 28 +++++++++++++++++++++\n drivers/net/ethernet/intel/i40e/i40e_xsk.c | 3 +++\n 3 files changed, 33 insertions(+), 14 deletions(-)" }