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{ "id": 807658, "url": "http://patchwork.ozlabs.org/api/covers/807658/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/cover/20170830142454.10971-1-jglauber@cavium.com/", "project": { "id": 19, "url": "http://patchwork.ozlabs.org/api/projects/19/?format=api", "name": "Linux IMX development", "link_name": "linux-imx", "list_id": "linux-imx-kernel.lists.patchwork.ozlabs.org", "list_email": "linux-imx-kernel@lists.patchwork.ozlabs.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20170830142454.10971-1-jglauber@cavium.com>", "list_archive_url": null, "date": "2017-08-30T14:24:51", "name": "[v3,0/3] Workaround for bus/slot reset on Cavium cn8xxx root ports", "submitter": { "id": 68350, "url": "http://patchwork.ozlabs.org/api/people/68350/?format=api", "name": "Jan Glauber", "email": "jglauber@cavium.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-imx/cover/20170830142454.10971-1-jglauber@cavium.com/mbox/", "series": [ { "id": 625, "url": "http://patchwork.ozlabs.org/api/series/625/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/list/?series=625", "date": "2017-08-30T14:24:51", "name": "Workaround for bus/slot reset on Cavium cn8xxx root ports", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/625/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/807658/comments/", "headers": { "Return-Path": "<linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming-imx@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming-imx@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; helo=bombadil.infradead.org;\n\tenvelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org\n\theader.b=\"KPKyUhAG\"; dkim-atps=neutral" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\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 3xj78t2SHCz9s7f\n\tfor <incoming-imx@patchwork.ozlabs.org>;\n\tThu, 31 Aug 2017 00:26:06 +1000 (AEST)", "from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dn3wQ-00076T-B7; Wed, 30 Aug 2017 14:26:02 +0000", "from mail-wm0-f67.google.com ([74.125.82.67])\n\tby bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dn3vv-0005Wo-JB for linux-arm-kernel@lists.infradead.org;\n\tWed, 30 Aug 2017 14:25:35 +0000", "by mail-wm0-f67.google.com with SMTP id m85so1480942wma.0\n\tfor <linux-arm-kernel@lists.infradead.org>;\n\tWed, 30 Aug 2017 07:25:10 -0700 (PDT)", "from hc.fritz.box\n\t(HSI-KBW-46-223-66-184.hsi.kabel-badenwuerttemberg.de.\n\t[46.223.66.184]) by smtp.gmail.com with ESMTPSA id\n\tp105sm97012wrc.64.2017.08.30.07.25.07\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);\n\tWed, 30 Aug 2017 07:25:08 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe:\n\tList-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date:\n\tSubject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date:\n\tResent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:\n\tReferences:List-Owner; bh=4bS7wO9GdvFB0ssWNxPxsyAMcFFIT5SD4P88fnvJeGY=;\n\tb=KPK\n\tyUhAGljeNOw5YiV6ekqrnUkJp5ahbV37eQuxaTis4MtBin7KT148BmahB8eRVWeBozBmAqzPDrfYH\n\tmCNUS1SRaH3kEI46Td+/sJshgNsJLJiydt6Cy9emao8IrD8OHMcNoWwlOvl4XH1mNEjlDAmXYqTEJ\n\tTbXrg/0gH2kfxnYBxma39JqidxI8IEmDDNw6fM6ilaOXDxim7kJJGENWLQED07NaiafSsP5J2rrN2\n\tmjkiOs7MXVuwapLJ5BZXwWT/jO30dZjm2W8s6WOsEkUrYmPEQpEMYmBsvanMQ1FR9kW8bYzjODWkR\n\tilNWC7G/fyfbcwHJs6o2IayJVW/k8kA==;", "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;\n\tbh=m6w87WLKoi6Bwgz7FwmA+KRiIkZJx0F9zB2WqypRhcE=;\n\tb=qGgl505U18hvHH/nIe8Y9Yjc81qyWjsVYEaqSAIvtTGGpV7Cy4mBKlM1kjerx3c0NF\n\tLdBic/MwBu9ZhE/dKiK+setYQRJ5H5Pu2k3pvdorq9JoOnRO8RRw+Y59XcJ1ZLYo+ORC\n\tfJiQJljpdZ1N+YwHVoZoAqR2MauZ5YOSKLOTGq1QGWFHCSuRBjMROxLUqP7pyb8ndfYa\n\tW+yq9Cegj9A8fbsRfMwHQLylfUGTYDOXebYnd3mPOm9haKipO6VWWkjvyYY0MHF8lhFj\n\tLzKbow4Wqp5UO/rcw52M8dAc4XfWLaZTEn4DiJz1nRQqoWJ7UJRwJ1JJ4r/oKJif5K7R\n\tYf9Q==", "X-Gm-Message-State": "AHYfb5g4fbIct3JMhzcbrGFUP9QFDN4kMbDZR9qIRK3Kq0DV2OlT7fFg\n\t/9Oo2KYHeoJPkQ==", "X-Received": "by 10.28.142.3 with SMTP id q3mr1376320wmd.56.1504103108541;\n\tWed, 30 Aug 2017 07:25:08 -0700 (PDT)", "From": "Jan Glauber <jglauber@cavium.com>", "To": "Bjorn Helgaas <bhelgaas@google.com>", "Subject": "[PATCH v3 0/3] Workaround for bus/slot reset on Cavium cn8xxx root\n\tports", "Date": "Wed, 30 Aug 2017 16:24:51 +0200", "Message-Id": "<20170830142454.10971-1-jglauber@cavium.com>", "X-Mailer": "git-send-email 2.9.0.rc0.21.g7777322", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20170830_072532_177107_BF52FAAD ", "X-CRM114-Status": "UNSURE ( 8.28 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-1.2 (-)", "X-Spam-Report": "SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-1.2 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/,\n\tno trust [74.125.82.67 listed in list.dnswl.org]\n\t0.5 RCVD_IN_SORBS_SPAM RBL: SORBS: sender is a spam source\n\t[74.125.82.67 listed in dnsbl.sorbs.net]\n\t-0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3)\n\t[74.125.82.67 listed in wl.mailspike.net]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail\n\tprovider (jan.glauber[at]gmail.com)\n\t0.0 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level\n\tmail domains are different\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]\n\t-0.0 RCVD_IN_MSPIKE_WL Mailspike good senders\n\t0.2 FREEMAIL_FORGED_FROMDOMAIN 2nd level domains in From and\n\tEnvelopeFrom freemail headers are different", "X-BeenThere": "linux-arm-kernel@lists.infradead.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-arm-kernel>,\n\t<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-arm-kernel/>", "List-Post": "<mailto:linux-arm-kernel@lists.infradead.org>", "List-Help": "<mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,\n\t<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>", "Cc": "kvm@vger.kernel.org, david.daney@cavium.com, linux-pci@vger.kernel.org, \n\tJan Glauber <jglauber@cavium.com>,\n\tRobert Richter <robert.richter@cavium.com>, \n\tlinux-kernel@vger.kernel.org,\n\tAlex Williamson <alex.williamson@redhat.com>, \n\tJon Masters <jcm@redhat.com>, linux-arm-kernel@lists.infradead.org", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"linux-arm-kernel\" <linux-arm-kernel-bounces@lists.infradead.org>", "Errors-To": "linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org", "List-Id": "linux-imx-kernel.lists.patchwork.ozlabs.org" }, "content": "Using vfio-pci on a combination of cn8xxx and some PCI devices results in\na kernel panic. This is triggered by issuing a bus or a slot reset\non the PCI device.\n\nThe solution is to prevent the reset. I've dropped the vfio patch from the\nprevious series as vfio-pci already checks in the reset path for\npci_bus_resetable() and pci_slot_resetable().\n\nWith this series both checks indicate that the reset is not possible\npreventing the kernel panic.\n\nDavid Daney (2):\n PCI: Allow PCI_DEV_FLAGS_NO_BUS_RESET to be used on bus device\n PCI: Avoid bus reset for Cavium cn8xxx root ports\n\nJan Glauber (1):\n PCI: Avoid slot reset for Cavium cn8xxx root ports\n\n drivers/pci/pci.c | 4 ++++\n drivers/pci/quirks.c | 24 ++++++++++++++++++++++++\n 2 files changed, 28 insertions(+)" }