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{
    "id": 7728,
    "url": "https://patches.dpdk.org/api/patches/7728/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1445149744-3217-8-git-send-email-huawei.xie@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": "<1445149744-3217-8-git-send-email-huawei.xie@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1445149744-3217-8-git-send-email-huawei.xie@intel.com",
    "date": "2015-10-18T06:29:04",
    "name": "[dpdk-dev,v2,7/7] virtio: pick simple rx/tx func",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "b51cef108eb4332f98cc734a282205420add7fda",
    "submitter": {
        "id": 16,
        "url": "https://patches.dpdk.org/api/people/16/?format=api",
        "name": "Huawei Xie",
        "email": "huawei.xie@intel.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/1445149744-3217-8-git-send-email-huawei.xie@intel.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/7728/comments/",
    "check": "pending",
    "checks": "https://patches.dpdk.org/api/patches/7728/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 [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 01A2C8E9B;\n\tSun, 18 Oct 2015 08:29:38 +0200 (CEST)",
            "from mga01.intel.com (mga01.intel.com [192.55.52.88])\n\tby dpdk.org (Postfix) with ESMTP id C6BA18E79\n\tfor <dev@dpdk.org>; Sun, 18 Oct 2015 08:29:35 +0200 (CEST)",
            "from orsmga002.jf.intel.com ([10.7.209.21])\n\tby fmsmga101.fm.intel.com with ESMTP; 17 Oct 2015 23:29:35 -0700",
            "from shvmail01.sh.intel.com ([10.239.29.42])\n\tby orsmga002.jf.intel.com with ESMTP; 17 Oct 2015 23:29:34 -0700",
            "from shecgisg003.sh.intel.com (shecgisg003.sh.intel.com\n\t[10.239.29.90])\n\tby shvmail01.sh.intel.com with ESMTP id t9I6TWTZ027282;\n\tSun, 18 Oct 2015 14:29:32 +0800",
            "from shecgisg003.sh.intel.com (localhost [127.0.0.1])\n\tby shecgisg003.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP\n\tid t9I6TUAj003301; Sun, 18 Oct 2015 14:29:32 +0800",
            "(from hxie5@localhost)\n\tby shecgisg003.sh.intel.com (8.13.6/8.13.6/Submit) id t9I6TUbo003297; \n\tSun, 18 Oct 2015 14:29:30 +0800"
        ],
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.17,696,1437462000\"; d=\"scan'208\";a=\"829246095\"",
        "From": "Huawei Xie <huawei.xie@intel.com>",
        "To": "dev@dpdk.org",
        "Date": "Sun, 18 Oct 2015 14:29:04 +0800",
        "Message-Id": "<1445149744-3217-8-git-send-email-huawei.xie@intel.com>",
        "X-Mailer": "git-send-email 1.7.4.1",
        "In-Reply-To": "<1445149744-3217-1-git-send-email-huawei.xie@intel.com>",
        "References": "<1443537953-23917-1-git-send-email-huawei.xie@intel.com>\n\t<1445149744-3217-1-git-send-email-huawei.xie@intel.com>",
        "Subject": "[dpdk-dev] [PATCH v2 7/7] virtio: pick simple rx/tx func",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://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": "<http://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": "simple rx/tx func is enabled when user specifies single segment, no offload support.\nmerge-able should be disabled to use simple rxtx.\n\nSigned-off-by: Huawei Xie <huawei.xie@intel.com>\n---\n drivers/net/virtio/virtio_rxtx.c | 12 ++++++++++++\n 1 file changed, 12 insertions(+)",
    "diff": "diff --git a/drivers/net/virtio/virtio_rxtx.c b/drivers/net/virtio/virtio_rxtx.c\nindex 947fc46..71f8cd4 100644\n--- a/drivers/net/virtio/virtio_rxtx.c\n+++ b/drivers/net/virtio/virtio_rxtx.c\n@@ -62,6 +62,10 @@\n #define  VIRTIO_DUMP_PACKET(m, len) do { } while (0)\n #endif\n \n+\n+#define VIRTIO_SIMPLE_FLAGS ((uint32_t)ETH_TXQ_FLAGS_NOMULTSEGS | \\\n+\tETH_TXQ_FLAGS_NOOFFLOADS)\n+\n static int use_simple_rxtx;\n \n static void\n@@ -471,6 +475,14 @@ virtio_dev_tx_queue_setup(struct rte_eth_dev *dev,\n \t\treturn -EINVAL;\n \t}\n \n+\t/* Use simple rx/tx func if single segment and no offloads */\n+\tif ((tx_conf->txq_flags & VIRTIO_SIMPLE_FLAGS) == VIRTIO_SIMPLE_FLAGS) {\n+\t\tPMD_INIT_LOG(INFO, \"Using simple rx/tx path\");\n+\t\tdev->tx_pkt_burst = virtio_xmit_pkts_simple;\n+\t\tdev->rx_pkt_burst = virtio_recv_pkts_vec;\n+\t\tuse_simple_rxtx = 1;\n+\t}\n+\n \tret = virtio_dev_queue_setup(dev, VTNET_TQ, queue_idx, vtpci_queue_idx,\n \t\t\tnb_desc, socket_id, &vq);\n \tif (ret < 0) {\n",
    "prefixes": [
        "dpdk-dev",
        "v2",
        "7/7"
    ]
}