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GET /api/patches/76109/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 76109,
    "url": "http://patches.dpdk.org/api/patches/76109/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/20200827161304.32300-14-ciara.power@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": "<20200827161304.32300-14-ciara.power@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20200827161304.32300-14-ciara.power@intel.com",
    "date": "2020-08-27T16:13:00",
    "name": "[v2,13/17] net/virtio: add checks for max SIMD bitwidth",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "7ee0cd4730139419201fd306ce473f2895d66f8c",
    "submitter": {
        "id": 978,
        "url": "http://patches.dpdk.org/api/people/978/?format=api",
        "name": "Power, Ciara",
        "email": "ciara.power@intel.com"
    },
    "delegate": {
        "id": 24651,
        "url": "http://patches.dpdk.org/api/users/24651/?format=api",
        "username": "dmarchand",
        "first_name": "David",
        "last_name": "Marchand",
        "email": "david.marchand@redhat.com"
    },
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/20200827161304.32300-14-ciara.power@intel.com/mbox/",
    "series": [
        {
            "id": 11831,
            "url": "http://patches.dpdk.org/api/series/11831/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=11831",
            "date": "2020-08-27T16:12:47",
            "name": "add max SIMD bitwidth to EAL",
            "version": 2,
            "mbox": "http://patches.dpdk.org/series/11831/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/76109/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/76109/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@inbox.dpdk.org",
        "Delivered-To": "patchwork@inbox.dpdk.org",
        "Received": [
            "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 5850AA04B1;\n\tThu, 27 Aug 2020 18:15:49 +0200 (CEST)",
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id DF40F1C12A;\n\tThu, 27 Aug 2020 18:13:55 +0200 (CEST)",
            "from mga07.intel.com (mga07.intel.com [134.134.136.100])\n by dpdk.org (Postfix) with ESMTP id 033A91C0AF\n for <dev@dpdk.org>; Thu, 27 Aug 2020 18:13:41 +0200 (CEST)",
            "from fmsmga007.fm.intel.com ([10.253.24.52])\n by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 27 Aug 2020 09:13:35 -0700",
            "from silpixa00399953.ir.intel.com (HELO\n silpixa00399953.ger.corp.intel.com) ([10.237.222.53])\n by fmsmga007.fm.intel.com with ESMTP; 27 Aug 2020 09:13:33 -0700"
        ],
        "IronPort-SDR": [
            "\n 9ifqdkBSvxbZYyB+rJizRD3ReLExqwv29OcKID/YCyDUrXCyf0W53PcULl8Aq0C7xHSHItKwwl\n z4PQGYl5WIEQ==",
            "\n HNCDfeQdwl10IBFFUmm50R8/a1EpQZ0WWh+rReFcZ3cLmDDx/9fmnRB+qciaJUZz3CgamNTKKP\n V5BiwWz/rurQ=="
        ],
        "X-IronPort-AV": [
            "E=McAfee;i=\"6000,8403,9726\"; a=\"220767045\"",
            "E=Sophos;i=\"5.76,360,1592895600\"; d=\"scan'208\";a=\"220767045\"",
            "E=Sophos;i=\"5.76,360,1592895600\"; d=\"scan'208\";a=\"280681568\""
        ],
        "X-Amp-Result": "SKIPPED(no attachment in message)",
        "X-Amp-File-Uploaded": "False",
        "X-ExtLoop1": "1",
        "From": "Ciara Power <ciara.power@intel.com>",
        "To": "dev@dpdk.org",
        "Cc": "Ciara Power <ciara.power@intel.com>,\n Maxime Coquelin <maxime.coquelin@redhat.com>,\n Chenbo Xia <chenbo.xia@intel.com>, Zhihong Wang <zhihong.wang@intel.com>",
        "Date": "Thu, 27 Aug 2020 17:13:00 +0100",
        "Message-Id": "<20200827161304.32300-14-ciara.power@intel.com>",
        "X-Mailer": "git-send-email 2.17.1",
        "In-Reply-To": "<20200827161304.32300-1-ciara.power@intel.com>",
        "References": "<20200807155859.63888-1-ciara.power@intel.com>\n <20200827161304.32300-1-ciara.power@intel.com>",
        "Subject": "[dpdk-dev] [PATCH v2 13/17] net/virtio: add checks for max SIMD\n\tbitwidth",
        "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 <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 <mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "When choosing a vector path to take, an extra condition must be\nsatisfied to ensure the max SIMD bitwidth allows for the CPU enabled\npath.\n\nCc: Maxime Coquelin <maxime.coquelin@redhat.com>\nCc: Chenbo Xia <chenbo.xia@intel.com>\nCc: Zhihong Wang <zhihong.wang@intel.com>\n\nSigned-off-by: Ciara Power <ciara.power@intel.com>\n---\n drivers/net/virtio/virtio_ethdev.c | 12 ++++++++----\n 1 file changed, 8 insertions(+), 4 deletions(-)",
    "diff": "diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c\nindex dc0093bdf0..f779ce8396 100644\n--- a/drivers/net/virtio/virtio_ethdev.c\n+++ b/drivers/net/virtio/virtio_ethdev.c\n@@ -1517,9 +1517,11 @@ set_rxtx_funcs(struct rte_eth_dev *eth_dev)\n \tif (vtpci_packed_queue(hw)) {\n \t\tPMD_INIT_LOG(INFO,\n \t\t\t\"virtio: using packed ring %s Tx path on port %u\",\n-\t\t\thw->use_vec_tx ? \"vectorized\" : \"standard\",\n+\t\t\t(hw->use_vec_tx && rte_get_max_simd_bitwidth()\n+\t\t\t> RTE_MAX_256_SIMD) ? \"vectorized\" : \"standard\",\n \t\t\teth_dev->data->port_id);\n-\t\tif (hw->use_vec_tx)\n+\t\tif (hw->use_vec_tx && rte_get_max_simd_bitwidth()\n+\t\t\t\t> RTE_MAX_256_SIMD)\n \t\t\teth_dev->tx_pkt_burst = virtio_xmit_pkts_packed_vec;\n \t\telse\n \t\t\teth_dev->tx_pkt_burst = virtio_xmit_pkts_packed;\n@@ -1536,7 +1538,8 @@ set_rxtx_funcs(struct rte_eth_dev *eth_dev)\n \t}\n \n \tif (vtpci_packed_queue(hw)) {\n-\t\tif (hw->use_vec_rx) {\n+\t\tif (hw->use_vec_rx && rte_get_max_simd_bitwidth()\n+\t\t\t\t> RTE_MAX_256_SIMD) {\n \t\t\tPMD_INIT_LOG(INFO,\n \t\t\t\t\"virtio: using packed ring vectorized Rx path on port %u\",\n \t\t\t\teth_dev->data->port_id);\n@@ -1555,7 +1558,8 @@ set_rxtx_funcs(struct rte_eth_dev *eth_dev)\n \t\t\teth_dev->rx_pkt_burst = &virtio_recv_pkts_packed;\n \t\t}\n \t} else {\n-\t\tif (hw->use_vec_rx) {\n+\t\tif (hw->use_vec_rx && rte_get_max_simd_bitwidth()\n+\t\t\t\t>= RTE_MAX_128_SIMD) {\n \t\t\tPMD_INIT_LOG(INFO, \"virtio: using vectorized Rx path on port %u\",\n \t\t\t\teth_dev->data->port_id);\n \t\t\teth_dev->rx_pkt_burst = virtio_recv_pkts_vec;\n",
    "prefixes": [
        "v2",
        "13/17"
    ]
}