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{
    "id": 68,
    "url": "http://patches.dpdk.org/api/covers/68/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/cover/20230817084226.55327-1-lihuisong@huawei.com/",
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        "name": "DPDK",
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        "list_id": "dev.dpdk.org",
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    "msgid": "<20230817084226.55327-1-lihuisong@huawei.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20230817084226.55327-1-lihuisong@huawei.com",
    "date": "2023-08-17T08:42:24",
    "name": "[v3,0/2] ethdev: add the check for PTP capability",
    "submitter": {
        "id": 2085,
        "url": "http://patches.dpdk.org/api/people/2085/?format=api",
        "name": "lihuisong (C)",
        "email": "lihuisong@huawei.com"
    },
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            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=29261",
            "date": "2023-08-17T08:42:25",
            "name": "ethdev: add the check for PTP capability",
            "version": 3,
            "mbox": "http://patches.dpdk.org/series/29261/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/covers/68/comments/",
    "headers": {
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            "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 6234F4308C;\n\tThu, 17 Aug 2023 10:45:30 +0200 (CEST)",
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        ],
        "From": "Huisong Li <lihuisong@huawei.com>",
        "To": "<dev@dpdk.org>",
        "CC": "<thomas@monjalon.net>, <ferruh.yigit@amd.com>,\n <andrew.rybchenko@oktetlabs.ru>, <liuyonglong@huawei.com>,\n <lihuisong@huawei.com>",
        "Subject": "[PATCH v3 0/2] ethdev: add the check for PTP capability",
        "Date": "Thu, 17 Aug 2023 16:42:24 +0800",
        "Message-ID": "<20230817084226.55327-1-lihuisong@huawei.com>",
        "X-Mailer": "git-send-email 2.33.0",
        "In-Reply-To": "<20220628133959.21381-1-liudongdong3@huawei.com>",
        "References": "<20220628133959.21381-1-liudongdong3@huawei.com>",
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        "X-ClientProxiedBy": "dggems706-chm.china.huawei.com (10.3.19.183) To\n kwepemm600004.china.huawei.com (7.193.23.242)",
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        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org"
    },
    "content": "From the first version of ptpclient, it seems that this example assume that\nthe PMDs support the PTP feature and enable PTP by default. Please see\ncommit ab129e9065a5 (\"examples/ptpclient: add minimal PTP client\")\nwhich are introduced in 2015.\n\nAnd two years later, Rx HW timestamp offload was introduced to enable or\ndisable PTP feature in HW via rte_eth_rxmode. Please see\ncommit 42ffc45aa340 (\"ethdev: add Rx HW timestamp capability\"). \n\nAnd then about four years later, ptpclient enable Rx timestamp offload\nbecause some PMDs require this offload to enable. Please see\ncommit 7a04a4f67dca (\"examples/ptpclient: enable Rx timestamp offload\").\n\nBy all the records, this is more like a process of perfecting PTP feature.\nNot all network adaptors support PTP feature. So adding the check for PTP\ncapability in ethdev layer is necessary.\n\n---\nv3:\n - patch [2/3] for hns3 has been applied and so remove it.\n - ops pointer check is closer to usage.\n\nHuisong Li (2):\n  examples/ptpclient: add the check for PTP capability\n  ethdev: add the check for the valitity of timestamp offload\n\n examples/ptpclient/ptpclient.c |  5 +++\n lib/ethdev/rte_ethdev.c        | 57 +++++++++++++++++++++++++++++++++-\n 2 files changed, 61 insertions(+), 1 deletion(-)"
}