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{
    "id": 32769,
    "url": "http://patches.dpdk.org/api/patches/32769/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/20171227100925.12953-1-zhiyong.yang@intel.com/",
    "project": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
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        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<20171227100925.12953-1-zhiyong.yang@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20171227100925.12953-1-zhiyong.yang@intel.com",
    "date": "2017-12-27T10:09:25",
    "name": "[dpdk-dev] net/virtio: fix wrong use_msix value for legacy device",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "b2174c7e0b702913177633bfd0bf0d9942b60565",
    "submitter": {
        "id": 540,
        "url": "http://patches.dpdk.org/api/people/540/?format=api",
        "name": "Yang, Zhiyong",
        "email": "zhiyong.yang@intel.com"
    },
    "delegate": null,
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/20171227100925.12953-1-zhiyong.yang@intel.com/mbox/",
    "series": [],
    "comments": "http://patches.dpdk.org/api/patches/32769/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/32769/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id D92CC1B2BE;\n\tWed, 27 Dec 2017 11:09:31 +0100 (CET)",
            "from mga05.intel.com (mga05.intel.com [192.55.52.43])\n\tby dpdk.org (Postfix) with ESMTP id DAD1F1B2BB;\n\tWed, 27 Dec 2017 11:09:30 +0100 (CET)",
            "from orsmga008.jf.intel.com ([10.7.209.65])\n\tby fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t27 Dec 2017 02:09:29 -0800",
            "from unknown (HELO dpdk5.bj.intel.com) ([172.16.182.198])\n\tby orsmga008.jf.intel.com with ESMTP; 27 Dec 2017 02:09:27 -0800"
        ],
        "X-Amp-Result": "SKIPPED(no attachment in message)",
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        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.45,464,1508828400\"; d=\"scan'208\";a=\"5904339\"",
        "From": "Zhiyong Yang <zhiyong.yang@intel.com>",
        "To": "dev@dpdk.org",
        "Cc": "yliu@fridaylinux.org, maxime.coquelin@redhat.com, stable@dpdk.org,\n\tZhiyong Yang <zhiyong.yang@intel.com>",
        "Date": "Wed, 27 Dec 2017 18:09:25 +0800",
        "Message-Id": "<20171227100925.12953-1-zhiyong.yang@intel.com>",
        "X-Mailer": "git-send-email 2.13.3",
        "Subject": "[dpdk-dev] [PATCH] net/virtio: fix wrong use_msix value for legacy\n\tdevice",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
        "List-Unsubscribe": "<https://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<https://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "If virtio fails to detect modern device, use_misx should be reset\nto VIRTIO_MSIX_NONE, otherwise this wrong value will be used after\nlegacy device detection succeeds to be done.\n\nFixes: fe19d49cb525 (\"net/virtio: fix Rx interrupt with VFIO\")\nCc: stable@dpdk.org\nSigned-off-by: Zhiyong Yang <zhiyong.yang@intel.com>\n---\n drivers/net/virtio/virtio_pci.c | 1 +\n 1 file changed, 1 insertion(+)",
    "diff": "diff --git a/drivers/net/virtio/virtio_pci.c b/drivers/net/virtio/virtio_pci.c\nindex 9574498fb..5582238fd 100644\n--- a/drivers/net/virtio/virtio_pci.c\n+++ b/drivers/net/virtio/virtio_pci.c\n@@ -695,6 +695,7 @@ vtpci_init(struct rte_pci_device *dev, struct virtio_hw *hw)\n \t\treturn 0;\n \t}\n \n+\thw->use_msix = VIRTIO_MSIX_NONE;\n \tPMD_INIT_LOG(INFO, \"trying with legacy virtio pci.\");\n \tif (rte_pci_ioport_map(dev, 0, VTPCI_IO(hw)) < 0) {\n \t\tif (dev->kdrv == RTE_KDRV_UNKNOWN &&\n",
    "prefixes": [
        "dpdk-dev"
    ]
}