Patch Detail

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{
    "id": 47879,
    "url": "https://patches.dpdk.org/api/patches/47879/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20181106064022.21566-2-tiwei.bie@intel.com/",
    "project": {
        "id": 1,
        "url": "https://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",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<20181106064022.21566-2-tiwei.bie@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20181106064022.21566-2-tiwei.bie@intel.com",
    "date": "2018-11-06T06:40:21",
    "name": "[1/2] vhost: fix IOVA access for packed ring",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "9c052965b5186e4a75f3cc84dc0470fccd2e9677",
    "submitter": {
        "id": 617,
        "url": "https://patches.dpdk.org/api/people/617/?format=api",
        "name": "Tiwei Bie",
        "email": "tiwei.bie@intel.com"
    },
    "delegate": {
        "id": 2642,
        "url": "https://patches.dpdk.org/api/users/2642/?format=api",
        "username": "mcoquelin",
        "first_name": "Maxime",
        "last_name": "Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20181106064022.21566-2-tiwei.bie@intel.com/mbox/",
    "series": [
        {
            "id": 2288,
            "url": "https://patches.dpdk.org/api/series/2288/?format=api",
            "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=2288",
            "date": "2018-11-06T06:40:20",
            "name": "Some fixes for virtio and vhost",
            "version": 1,
            "mbox": "https://patches.dpdk.org/series/2288/mbox/"
        }
    ],
    "comments": "https://patches.dpdk.org/api/patches/47879/comments/",
    "check": "success",
    "checks": "https://patches.dpdk.org/api/patches/47879/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 A22934C92;\n\tTue,  6 Nov 2018 07:42:50 +0100 (CET)",
            "from mga11.intel.com (mga11.intel.com [192.55.52.93])\n\tby dpdk.org (Postfix) with ESMTP id D00452082;\n\tTue,  6 Nov 2018 07:42:47 +0100 (CET)",
            "from fmsmga004.fm.intel.com ([10.253.24.48])\n\tby fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t05 Nov 2018 22:42:47 -0800",
            "from btwcube1.sh.intel.com ([10.67.104.173])\n\tby fmsmga004.fm.intel.com with ESMTP; 05 Nov 2018 22:42:46 -0800"
        ],
        "X-Amp-Result": "SKIPPED(no attachment in message)",
        "X-Amp-File-Uploaded": "False",
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.54,470,1534834800\"; d=\"scan'208\";a=\"103770650\"",
        "From": "Tiwei Bie <tiwei.bie@intel.com>",
        "To": "maxime.coquelin@redhat.com,\n\tzhihong.wang@intel.com,\n\tdev@dpdk.org",
        "Cc": "stable@dpdk.org",
        "Date": "Tue,  6 Nov 2018 14:40:21 +0800",
        "Message-Id": "<20181106064022.21566-2-tiwei.bie@intel.com>",
        "X-Mailer": "git-send-email 2.19.1",
        "In-Reply-To": "<20181106064022.21566-1-tiwei.bie@intel.com>",
        "References": "<20181106064022.21566-1-tiwei.bie@intel.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[dpdk-dev] [PATCH 1/2] vhost: fix IOVA access for packed ring",
        "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://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://mails.dpdk.org/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "We should apply for RO access when receiving packets from the\nVM and apply for RW access when sending packets to the VM.\n\nFixes: a922401f35cc (\"vhost: add Rx support for packed ring\")\nFixes: ae999ce49dcb (\"vhost: add Tx support for packed ring\")\nCc: stable@dpdk.org\n\nSigned-off-by: Tiwei Bie <tiwei.bie@intel.com>\n---\n lib/librte_vhost/virtio_net.c | 4 ++--\n 1 file changed, 2 insertions(+), 2 deletions(-)",
    "diff": "diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c\nindex 8ad30c94a..5e1a1a727 100644\n--- a/lib/librte_vhost/virtio_net.c\n+++ b/lib/librte_vhost/virtio_net.c\n@@ -598,7 +598,7 @@ reserve_avail_buf_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,\n \t\t\t\t\t\tavail_idx, &desc_count,\n \t\t\t\t\t\tbuf_vec, &vec_idx,\n \t\t\t\t\t\t&buf_id, &len,\n-\t\t\t\t\t\tVHOST_ACCESS_RO) < 0))\n+\t\t\t\t\t\tVHOST_ACCESS_RW) < 0))\n \t\t\treturn -1;\n \n \t\tlen = RTE_MIN(len, size);\n@@ -1503,7 +1503,7 @@ virtio_dev_tx_packed(struct virtio_net *dev, struct vhost_virtqueue *vq,\n \t\t\t\t\t\tvq->last_avail_idx, &desc_count,\n \t\t\t\t\t\tbuf_vec, &nr_vec,\n \t\t\t\t\t\t&buf_id, &dummy_len,\n-\t\t\t\t\t\tVHOST_ACCESS_RW) < 0))\n+\t\t\t\t\t\tVHOST_ACCESS_RO) < 0))\n \t\t\tbreak;\n \n \t\tif (likely(dev->dequeue_zero_copy == 0))\n",
    "prefixes": [
        "1/2"
    ]
}