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{
    "id": 95444,
    "url": "http://patchwork.dpdk.org/api/covers/95444/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/cover/20210707054341.1607419-1-ruifeng.wang@arm.com/",
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    "msgid": "<20210707054341.1607419-1-ruifeng.wang@arm.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20210707054341.1607419-1-ruifeng.wang@arm.com",
    "date": "2021-07-07T05:43:37",
    "name": "[v4,0/3] Use WFE for spinlock and ring",
    "submitter": {
        "id": 1198,
        "url": "http://patchwork.dpdk.org/api/people/1198/?format=api",
        "name": "Ruifeng Wang",
        "email": "ruifeng.wang@arm.com"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/cover/20210707054341.1607419-1-ruifeng.wang@arm.com/mbox/",
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        {
            "id": 17681,
            "url": "http://patchwork.dpdk.org/api/series/17681/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=17681",
            "date": "2021-07-07T05:43:37",
            "name": "Use WFE for spinlock and ring",
            "version": 4,
            "mbox": "http://patchwork.dpdk.org/series/17681/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/covers/95444/comments/",
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@inbox.dpdk.org",
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        "Received": [
            "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 3991DA0C48;\n\tWed,  7 Jul 2021 07:43:55 +0200 (CEST)",
            "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 0D866406FF;\n\tWed,  7 Jul 2021 07:43:55 +0200 (CEST)",
            "from foss.arm.com (foss.arm.com [217.140.110.172])\n by mails.dpdk.org (Postfix) with ESMTP id 39C004069E\n for <dev@dpdk.org>; Wed,  7 Jul 2021 07:43:53 +0200 (CEST)",
            "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 7FE57D6E;\n Tue,  6 Jul 2021 22:43:52 -0700 (PDT)",
            "from net-arm-n1amp-02.shanghai.arm.com\n (net-arm-n1amp-02.shanghai.arm.com [10.169.210.110])\n by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id D98563F5A1;\n Tue,  6 Jul 2021 22:43:49 -0700 (PDT)"
        ],
        "From": "Ruifeng Wang <ruifeng.wang@arm.com>",
        "To": "",
        "Cc": "dev@dpdk.org, david.marchand@redhat.com, thomas@monjalon.net,\n bruce.richardson@intel.com, jerinj@marvell.com, nd@arm.com,\n honnappa.nagarahalli@arm.com, ruifeng.wang@arm.com",
        "Date": "Wed,  7 Jul 2021 13:43:37 +0800",
        "Message-Id": "<20210707054341.1607419-1-ruifeng.wang@arm.com>",
        "X-Mailer": "git-send-email 2.25.1",
        "In-Reply-To": "<20200424070741.16619-1-gavin.hu@arm.com>",
        "References": "<20200424070741.16619-1-gavin.hu@arm.com>",
        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[dpdk-dev] [PATCH v4 0/3] Use WFE for spinlock and ring",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.29",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "The rte_wait_until_equal_xxx APIs abstract the functionality of 'polling\nfor a memory location to become equal to a given value'[1].\n\nUse the API for the rte spinlock and ring implementations.\nWith the wait until equal APIs being stable, changes will not impact ABI.\n\n[1] http://patches.dpdk.org/cover/62703/\n\nv4:\nAdded meson option to expose WFE. (David, Bruce)\n\nv3:\nSeries rebased. (David)\n\nGavin Hu (1):\n  spinlock: use wfe to reduce contention on aarch64\n\nRuifeng Wang (2):\n  ring: use wfe to wait for ring tail update on aarch64\n  build: add option to enable wait until equal\n\n config/arm/meson.build                 | 2 +-\n lib/eal/include/generic/rte_spinlock.h | 4 ++--\n lib/ring/rte_ring_c11_pvt.h            | 4 ++--\n lib/ring/rte_ring_generic_pvt.h        | 3 +--\n meson_options.txt                      | 2 ++\n 5 files changed, 8 insertions(+), 7 deletions(-)"
}