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b=nhJnFRVfVqgujVGNxAsCRR39tWHpUnp8Tzxzb3IbcvXDQS+hj4D0EwRcgOV1vHqEygR4h4NqnCWvz2ZhTZ/iCag8fmVGGZUmJ8yF9EVhFwKj6ZcjND4V5p4opBAL3uLORYKQgNHh4jMz4boKgZAqoWtFT+9QHZ9KZH+YJFjZw/A= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from CH2PR12MB4294.namprd12.prod.outlook.com (2603:10b6:610:a9::11) by CH2PR12MB4277.namprd12.prod.outlook.com (2603:10b6:610:ae::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6813.20; Thu, 21 Sep 2023 11:03:04 +0000 Received: from CH2PR12MB4294.namprd12.prod.outlook.com ([fe80::102f:c69b:d3e5:7fe8]) by CH2PR12MB4294.namprd12.prod.outlook.com ([fe80::102f:c69b:d3e5:7fe8%4]) with mapi id 15.20.6792.026; Thu, 21 Sep 2023 11:03:04 +0000 Message-ID: <7be6fe83-173f-4905-9f3b-519cdefae34f@amd.com> Date: Thu, 21 Sep 2023 12:02:57 +0100 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/2] examples/ptpclient: add the check for PTP capability Content-Language: en-US To: "lihuisong (C)" , dev@dpdk.org, Gagandeep Singh , Hemant Agrawal Cc: thomas@monjalon.net, andrew.rybchenko@oktetlabs.ru, liuyonglong@huawei.com References: <20220628133959.21381-1-liudongdong3@huawei.com> <20230817084226.55327-1-lihuisong@huawei.com> <20230817084226.55327-2-lihuisong@huawei.com> <6ab973de-3194-6eb8-ea31-f9c1def4c276@huawei.com> From: Ferruh Yigit Autocrypt: addr=ferruh.yigit@amd.com; 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>>> +    else { >>> +        printf("port(%u) doesn't support PTP: %s\n", port, >>> +               strerror(-retval)); >>> +        return -ENOTSUP; >>> +    } >>>   >> I am not sure why TIMESTAMP offload is required for PTP, I think there >> is a confusion. > If TIMESTAMP offload is not required for PTP, there isn't PTP offload in > ethdev lib. > What do you mean with "PTP offload"? If you check the ptpclient sample app, it parses ptp packets in the application. >> >> >> Gagandeep, Hemant, >> Can you please clarify why TIMESTAMP offload is enabled? > looking forward to your reply. >> >> .