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GET /api/patches/41474/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 41474,
    "url": "http://patches.dpdk.org/api/patches/41474/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/20180625151710.29437-8-yong.liu@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",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<20180625151710.29437-8-yong.liu@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20180625151710.29437-8-yong.liu@intel.com",
    "date": "2018-06-25T15:17:09",
    "name": "[v2,7/8] net/virtio: add IN_ORDER Rx/Tx into selection",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "adc6c7d4a87e0244211262f1a66696ad14b12d42",
    "submitter": {
        "id": 17,
        "url": "http://patches.dpdk.org/api/people/17/?format=api",
        "name": "Marvin Liu",
        "email": "yong.liu@intel.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/project/dpdk/patch/20180625151710.29437-8-yong.liu@intel.com/mbox/",
    "series": [
        {
            "id": 223,
            "url": "http://patches.dpdk.org/api/series/223/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=223",
            "date": "2018-06-25T15:17:02",
            "name": "support VIRTIO_F_IN_ORDER feature",
            "version": 2,
            "mbox": "http://patches.dpdk.org/series/223/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/41474/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/41474/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 1A1DE1B060;\n\tMon, 25 Jun 2018 09:31:36 +0200 (CEST)",
            "from mga06.intel.com (mga06.intel.com [134.134.136.31])\n\tby dpdk.org (Postfix) with ESMTP id B41395F35\n\tfor <dev@dpdk.org>; Mon, 25 Jun 2018 09:31:29 +0200 (CEST)",
            "from fmsmga006.fm.intel.com ([10.253.24.20])\n\tby orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t25 Jun 2018 00:31:28 -0700",
            "from dpdk-test32.sh.intel.com ([10.67.119.193])\n\tby fmsmga006.fm.intel.com with ESMTP; 25 Jun 2018 00:31:18 -0700"
        ],
        "X-Amp-Result": "SKIPPED(no attachment in message)",
        "X-Amp-File-Uploaded": "False",
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.51,269,1526367600\"; d=\"scan'208\";a=\"240338641\"",
        "From": "Marvin Liu <yong.liu@intel.com>",
        "To": "maxime.coquelin@redhat.com,\n\ttiwei.bie@intel.com",
        "Cc": "zhihong.wang@intel.com,\n\tdev@dpdk.org,\n\tMarvin Liu <yong.liu@intel.com>",
        "Date": "Mon, 25 Jun 2018 23:17:09 +0800",
        "Message-Id": "<20180625151710.29437-8-yong.liu@intel.com>",
        "X-Mailer": "git-send-email 2.17.0",
        "In-Reply-To": "<20180625151710.29437-1-yong.liu@intel.com>",
        "References": "<20180625151710.29437-1-yong.liu@intel.com>",
        "Subject": "[dpdk-dev] [PATCH v2 7/8] net/virtio: add IN_ORDER Rx/Tx into\n\tselection",
        "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": "After IN_ORDER Rx/Tx paths added, need to update Rx/Tx path selection\nlogic.\n\nRx path select logic: If IN_ORDER is disabled will select normal Rx\npath. If IN_ORDER is enabled, Rx offload and merge-able are disabled\nwill select simple Rx path. Otherwise will select IN_ORDER Rx path.\n\nTx path select logic: If IN_ORDER is disabled will select normal Tx\npath. If IN_ORDER is enabled and merge-able is disabled will select\nsimple Tx path. Otherwise will select IN_ORDER Tx path.\n\nSigned-off-by: Marvin Liu <yong.liu@intel.com>",
    "diff": "diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c\nindex df50a571a..f48a84a11 100644\n--- a/drivers/net/virtio/virtio_ethdev.c\n+++ b/drivers/net/virtio/virtio_ethdev.c\n@@ -1320,6 +1320,11 @@ set_rxtx_funcs(struct rte_eth_dev *eth_dev)\n \t\tPMD_INIT_LOG(INFO, \"virtio: using simple Rx path on port %u\",\n \t\t\teth_dev->data->port_id);\n \t\teth_dev->rx_pkt_burst = virtio_recv_pkts_vec;\n+\t} else if (hw->use_inorder_rx) {\n+\t\tPMD_INIT_LOG(INFO,\n+\t\t\t\"virtio: using inorder mergeable buffer Rx path on port %u\",\n+\t\t\teth_dev->data->port_id);\n+\t\teth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts_inorder;\n \t} else if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {\n \t\tPMD_INIT_LOG(INFO,\n \t\t\t\"virtio: using mergeable buffer Rx path on port %u\",\n@@ -1335,6 +1340,10 @@ set_rxtx_funcs(struct rte_eth_dev *eth_dev)\n \t\tPMD_INIT_LOG(INFO, \"virtio: using simple Tx path on port %u\",\n \t\t\teth_dev->data->port_id);\n \t\teth_dev->tx_pkt_burst = virtio_xmit_pkts_simple;\n+\t} else if (hw->use_inorder_tx) {\n+\t\tPMD_INIT_LOG(INFO, \"virtio: using inorder Tx path on port %u\",\n+\t\t\teth_dev->data->port_id);\n+\t\teth_dev->tx_pkt_burst = virtio_xmit_pkts_inorder;\n \t} else {\n \t\tPMD_INIT_LOG(INFO, \"virtio: using standard Tx path on port %u\",\n \t\t\teth_dev->data->port_id);\n@@ -1871,23 +1880,25 @@ virtio_dev_configure(struct rte_eth_dev *dev)\n \n \trte_spinlock_init(&hw->state_lock);\n \n-\thw->use_simple_rx = 1;\n-\thw->use_simple_tx = 1;\n-\n #if defined RTE_ARCH_ARM64 || defined RTE_ARCH_ARM\n \tif (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_NEON)) {\n \t\thw->use_simple_rx = 0;\n \t\thw->use_simple_tx = 0;\n \t}\n #endif\n-\tif (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {\n-\t\thw->use_simple_rx = 0;\n-\t\thw->use_simple_tx = 0;\n-\t}\n+\tif (vtpci_with_feature(hw, VIRTIO_F_IN_ORDER)) {\n+\t\tif (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {\n+\t\t\thw->use_inorder_rx = 1;\n+\t\t\thw->use_inorder_tx = 1;\n+\t\t} else {\n+\t\t\thw->use_simple_rx = 1;\n+\t\t\thw->use_simple_tx = 1;\n+\t\t}\n \n-\tif (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |\n-\t\t\t   DEV_RX_OFFLOAD_TCP_CKSUM))\n-\t\thw->use_simple_rx = 0;\n+\t\tif (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |\n+\t\t\t\t   DEV_RX_OFFLOAD_TCP_CKSUM))\n+\t\t\thw->use_inorder_rx = 1;\n+\t}\n \n \treturn 0;\n }\n",
    "prefixes": [
        "v2",
        "7/8"
    ]
}