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{
    "id": 42430,
    "url": "http://patches.dpdk.org/api/patches/42430/?format=api",
    "web_url": "http://patches.dpdk.org/patch/42430/",
    "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"
    },
    "msgid": "<20180705210741.17974-3-maxime.coquelin@redhat.com>",
    "date": "2018-07-05T21:07:28",
    "name": "[v8,02/15] vhost: add helpers for packed virtqueues",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "62c404b5a7448038fa901d5776fa0d024475f03b",
    "submitter": {
        "id": 512,
        "url": "http://patches.dpdk.org/api/people/512/?format=api",
        "name": "Maxime Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "delegate": {
        "id": 2642,
        "url": "http://patches.dpdk.org/api/users/2642/?format=api",
        "username": "mcoquelin",
        "first_name": "Maxime",
        "last_name": "Coquelin",
        "email": "maxime.coquelin@redhat.com"
    },
    "mbox": "http://patches.dpdk.org/patch/42430/mbox/",
    "series": [
        {
            "id": 443,
            "url": "http://patches.dpdk.org/api/series/443/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=443",
            "date": "2018-07-05T21:07:26",
            "name": "Vhost: add support to packed ring layout",
            "version": 8,
            "mbox": "http://patches.dpdk.org/series/443/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/42430/comments/",
    "check": "fail",
    "checks": "http://patches.dpdk.org/api/patches/42430/checks/",
    "tags": {},
    "headers": {
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
        "From": "Maxime Coquelin <maxime.coquelin@redhat.com>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "Date": "Thu,  5 Jul 2018 23:07:28 +0200",
        "X-Mailman-Version": "2.1.15",
        "Delivered-To": "patchwork@dpdk.org",
        "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Cc": "mst@redhat.com, jasowang@redhat.com, wexu@redhat.com,\n\tMaxime Coquelin <maxime.coquelin@redhat.com>",
        "To": "tiwei.bie@intel.com, zhihong.wang@intel.com, jfreimann@redhat.com,\n\tdev@dpdk.org",
        "Errors-To": "dev-bounces@dpdk.org",
        "References": "<20180705210741.17974-1-maxime.coquelin@redhat.com>",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>",
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-BeenThere": "dev@dpdk.org",
        "List-Post": "<mailto:dev@dpdk.org>",
        "Received": [
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 126501BF21;\n\tThu,  5 Jul 2018 23:07:51 +0200 (CEST)",
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        ],
        "X-Original-To": "patchwork@dpdk.org",
        "List-Archive": "<http://mails.dpdk.org/archives/dev/>",
        "X-Scanned-By": "MIMEDefang 2.78 on 10.11.54.6",
        "Subject": "[dpdk-dev] [PATCH v8 02/15] vhost: add helpers for packed virtqueues",
        "In-Reply-To": "<20180705210741.17974-1-maxime.coquelin@redhat.com>",
        "Message-Id": "<20180705210741.17974-3-maxime.coquelin@redhat.com>",
        "Precedence": "list",
        "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "X-Greylist": [
            "Sender IP whitelisted, not delayed by milter-greylist-4.5.16\n\t(mx1.redhat.com [10.11.55.8]); Thu, 05 Jul 2018 21:07:48 +0000 (UTC)",
            "inspected by milter-greylist-4.5.16 (mx1.redhat.com\n\t[10.11.55.8]); \n\tThu, 05 Jul 2018 21:07:48 +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:''"
        ]
    },
    "content": "From: Jens Freimann <jfreimann@redhat.com>\n\nAdd some helper functions to check descriptor flags\nand check if a vring is of type packed.\n\nSigned-off-by: Jens Freimann <jfreimann@redhat.com>\nSigned-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>\n---\n lib/librte_vhost/vhost.h | 13 +++++++++++++\n 1 file changed, 13 insertions(+)",
    "diff": "diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h\nindex 4fc804bd8..84088804b 100644\n--- a/lib/librte_vhost/vhost.h\n+++ b/lib/librte_vhost/vhost.h\n@@ -344,6 +344,19 @@ struct virtio_net {\n \tstruct vhost_user_extern_ops extern_ops;\n } __rte_cache_aligned;\n \n+static __rte_always_inline bool\n+vq_is_packed(struct virtio_net *dev)\n+{\n+\treturn dev->features & (1ull << VIRTIO_F_RING_PACKED);\n+}\n+\n+static inline bool\n+desc_is_avail(struct vring_desc_packed *desc, bool wrap_counter)\n+{\n+\treturn wrap_counter == !!(desc->flags & VRING_DESC_F_AVAIL) &&\n+\t\twrap_counter != !!(desc->flags & VRING_DESC_F_USED);\n+}\n+\n #define VHOST_LOG_PAGE\t4096\n \n /*\n",
    "prefixes": [
        "v8",
        "02/15"
    ]
}