Show a patch.

GET /api/patches/42271/
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 42271,
    "url": "http://patches.dpdk.org/api/patches/42271/",
    "web_url": "http://patches.dpdk.org/patch/42271/",
    "project": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/projects/1/",
        "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"
    },
    "msgid": "<20180704215438.5579-5-maxime.coquelin@redhat.com>",
    "date": "2018-07-04T21:54:27",
    "name": "[v7,04/15] vhost: clear shadow used table index at flush time",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "3da74a231260e7d827066e8dd3a61fe019beb555",
    "submitter": {
        "id": 512,
        "url": "http://patches.dpdk.org/api/people/512/",
        "name": "Maxime Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "delegate": {
        "id": 2642,
        "url": "http://patches.dpdk.org/api/users/2642/",
        "username": "mcoquelin",
        "first_name": "Maxime",
        "last_name": "Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "mbox": "http://patches.dpdk.org/patch/42271/mbox/",
    "series": [
        {
            "id": 404,
            "url": "http://patches.dpdk.org/api/series/404/",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=404",
            "date": "2018-07-04T21:54:23",
            "name": "Vhost: add support to packed ring layout",
            "version": 7,
            "mbox": "http://patches.dpdk.org/series/404/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/42271/comments/",
    "check": "fail",
    "checks": "http://patches.dpdk.org/api/patches/42271/checks/",
    "tags": {},
    "headers": {
        "X-Mailman-Version": "2.1.15",
        "In-Reply-To": "<20180704215438.5579-1-maxime.coquelin@redhat.com>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id C4FBB1BE0E;\n\tWed,  4 Jul 2018 23:54:54 +0200 (CEST)",
            "from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73])\n\tby dpdk.org (Postfix) with ESMTP id 68D081BDF2\n\tfor <dev@dpdk.org>; Wed,  4 Jul 2018 23:54:53 +0200 (CEST)",
            "from smtp.corp.redhat.com\n\t(int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 1529A401CB89;\n\tWed,  4 Jul 2018 21:54:53 +0000 (UTC)",
            "from localhost.localdomain (ovpn-112-34.ams2.redhat.com\n\t[10.36.112.34])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id 4EBBB2156880;\n\tWed,  4 Jul 2018 21:54:51 +0000 (UTC)"
        ],
        "References": "<20180704215438.5579-1-maxime.coquelin@redhat.com>",
        "Delivered-To": "patchwork@dpdk.org",
        "X-BeenThere": "dev@dpdk.org",
        "X-Scanned-By": "MIMEDefang 2.78 on 10.11.54.6",
        "Message-Id": "<20180704215438.5579-5-maxime.coquelin@redhat.com>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "Precedence": "list",
        "From": "Maxime Coquelin <maxime.coquelin@redhat.com>",
        "X-Original-To": "patchwork@dpdk.org",
        "Return-Path": "<dev-bounces@dpdk.org>",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>",
        "X-Greylist": [
            "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.11.55.5]); Wed, 04 Jul 2018 21:54:53 +0000 (UTC)",
            "inspected by milter-greylist-4.5.16 (mx1.redhat.com\n\t[10.11.55.5]); \n\tWed, 04 Jul 2018 21:54:53 +0000 (UTC) for IP:'10.11.54.6'\n\tDOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com'\n\tHELO:'smtp.corp.redhat.com' FROM:'maxime.coquelin@redhat.com' RCPT:''"
        ],
        "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>",
        "To": "tiwei.bie@intel.com, zhihong.wang@intel.com, jfreimann@redhat.com,\n\tdev@dpdk.org",
        "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>",
        "Date": "Wed,  4 Jul 2018 23:54:27 +0200",
        "Cc": "mst@redhat.com, jasowang@redhat.com, wexu@redhat.com,\n\tMaxime Coquelin <maxime.coquelin@redhat.com>",
        "List-Archive": "<http://mails.dpdk.org/archives/dev/>",
        "Subject": "[dpdk-dev] [PATCH v7 04/15] vhost: clear shadow used table index at\n\tflush time"
    },
    "content": "Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>\n---\n lib/librte_vhost/virtio_net.c | 4 +---\n 1 file changed, 1 insertion(+), 3 deletions(-)",
    "diff": "diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c\nindex 81377e79a..e189cbb2c 100644\n--- a/lib/librte_vhost/virtio_net.c\n+++ b/lib/librte_vhost/virtio_net.c\n@@ -115,6 +115,7 @@ flush_shadow_used_ring(struct virtio_net *dev, struct vhost_virtqueue *vq)\n \tvhost_log_cache_sync(dev, vq);\n \n \t*(volatile uint16_t *)&vq->used->idx += vq->shadow_used_idx;\n+\tvq->shadow_used_idx = 0;\n \tvhost_log_used_vring(dev, vq, offsetof(struct vring_used, idx),\n \t\tsizeof(vq->used->idx));\n }\n@@ -567,7 +568,6 @@ virtio_dev_rx(struct virtio_net *dev, uint16_t queue_id,\n \n \trte_prefetch0(&vq->avail->ring[vq->last_avail_idx & (vq->size - 1)]);\n \n-\tvq->shadow_used_idx = 0;\n \tavail_head = *((volatile uint16_t *)&vq->avail->idx);\n \tfor (pkt_idx = 0; pkt_idx < count; pkt_idx++) {\n \t\tuint32_t pkt_len = pkts[pkt_idx]->pkt_len + dev->vhost_hlen;\n@@ -1054,7 +1054,6 @@ rte_vhost_dequeue_burst(int vid, uint16_t queue_id,\n \t\tgoto out_access_unlock;\n \n \tvq->batch_copy_nb_elems = 0;\n-\tvq->shadow_used_idx = 0;\n \n \tif (dev->features & (1ULL << VIRTIO_F_IOMMU_PLATFORM))\n \t\tvhost_user_iotlb_rd_lock(vq);\n@@ -1085,7 +1084,6 @@ rte_vhost_dequeue_burst(int vid, uint16_t queue_id,\n \n \t\tflush_shadow_used_ring(dev, vq);\n \t\tvhost_vring_call(dev, vq);\n-\t\tvq->shadow_used_idx = 0;\n \t}\n \n \trte_prefetch0(&vq->avail->ring[vq->last_avail_idx & (vq->size - 1)]);\n",
    "prefixes": [
        "v7",
        "04/15"
    ]
}