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{
    "id": 65787,
    "url": "http://patches.dpdk.org/api/covers/65787/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/cover/20200213123854.203566-1-gavin.hu@arm.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/{}",
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    },
    "msgid": "<20200213123854.203566-1-gavin.hu@arm.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20200213123854.203566-1-gavin.hu@arm.com",
    "date": "2020-02-13T12:38:48",
    "name": "[RFC,v1,0/6] barrier fix and optimization for mlx5 on aarch64",
    "submitter": {
        "id": 1018,
        "url": "http://patches.dpdk.org/api/people/1018/?format=api",
        "name": "Gavin Hu",
        "email": "gavin.hu@arm.com"
    },
    "mbox": "http://patches.dpdk.org/project/dpdk/cover/20200213123854.203566-1-gavin.hu@arm.com/mbox/",
    "series": [
        {
            "id": 8525,
            "url": "http://patches.dpdk.org/api/series/8525/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=8525",
            "date": "2020-02-13T12:38:48",
            "name": "barrier fix and optimization for mlx5 on aarch64",
            "version": 1,
            "mbox": "http://patches.dpdk.org/series/8525/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/covers/65787/comments/",
    "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 2A352A0542;\n\tThu, 13 Feb 2020 13:43:50 +0100 (CET)",
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 7901C1BFB5;\n\tThu, 13 Feb 2020 13:43:49 +0100 (CET)",
            "from foss.arm.com (foss.arm.com [217.140.110.172])\n by dpdk.org (Postfix) with ESMTP id B8EB61BFB4\n for <dev@dpdk.org>; Thu, 13 Feb 2020 13:43:48 +0100 (CET)",
            "from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14])\n by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3B7411FB;\n Thu, 13 Feb 2020 04:43:48 -0800 (PST)",
            "from net-arm-thunderx2-04.shanghai.arm.com\n (net-arm-thunderx2-04.shanghai.arm.com [10.169.40.184])\n by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 02F4D3F6CF;\n Thu, 13 Feb 2020 04:43:41 -0800 (PST)"
        ],
        "From": "Gavin Hu <gavin.hu@arm.com>",
        "To": "dev@dpdk.org",
        "Cc": "nd@arm.com, david.marchand@redhat.com, thomas@monjalon.net,\n rasland@mellanox.com, drc@linux.vnet.ibm.com, bruce.richardson@intel.com,\n konstantin.ananyev@intel.com, matan@mellanox.com, shahafs@mellanox.com,\n viacheslavo@mellanox.com, jerinj@marvell.com, Honnappa.Nagarahalli@arm.com,\n ruifeng.wang@arm.com, phil.yang@arm.com, joyce.kong@arm.com,\n steve.capper@arm.com",
        "Date": "Thu, 13 Feb 2020 20:38:48 +0800",
        "Message-Id": "<20200213123854.203566-1-gavin.hu@arm.com>",
        "X-Mailer": "git-send-email 2.17.1",
        "Subject": "[dpdk-dev] [PATCH RFC v1 0/6] barrier fix and optimization for mlx5\n\ton aarch64",
        "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": "Using just sufficient barriers really matters to performance.\nInsufficient barriers will cause issues while barriers stronger\nthan required, especially in the fast path is a performance killer.\n\nIn the joint preliminary testing between Arm and Ampere, 8%~13%\nperformance was measured.\n\nGavin Hu (5):\n  net/mlx5: relax the barrier for UAR write\n  net/mlx5: use cio barrier before the BF WQE\n  net/mlx5: add missing barrier\n  net/mlx5: add descriptive comment for a barrier\n  net/mlx5: non-cacheable mapping defaulted for aarch64\n\nPhil Yang (1):\n  net/mlx5: relaxed ordering for multi-packet RQ buffer refcnt\n\n drivers/net/mlx5/mlx5_rxq.c  |  5 +++--\n drivers/net/mlx5/mlx5_rxtx.c | 16 +++++++++-------\n drivers/net/mlx5/mlx5_rxtx.h | 11 ++++++++---\n drivers/net/mlx5/mlx5_txq.c  |  4 ++++\n 4 files changed, 24 insertions(+), 12 deletions(-)"
}