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header.from=amd.com; Received: from CH2PR12MB4294.namprd12.prod.outlook.com (2603:10b6:610:a9::11) by DM4PR12MB5391.namprd12.prod.outlook.com (2603:10b6:5:39a::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7002.27; Mon, 20 Nov 2023 10:48:14 +0000 Received: from CH2PR12MB4294.namprd12.prod.outlook.com ([fe80::2569:edb2:670f:816f]) by CH2PR12MB4294.namprd12.prod.outlook.com ([fe80::2569:edb2:670f:816f%6]) with mapi id 15.20.7002.027; Mon, 20 Nov 2023 10:48:13 +0000 Message-ID: <1efe72a8-4c36-4dd2-a1a6-f6174bac178a@amd.com> Date: Mon, 20 Nov 2023 10:47:36 +0000 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] app/test-pmd: fix L4 checksum with padding data Content-Language: en-US To: Stephen Hemminger <stephen@networkplumber.org> Cc: Kaiwen Deng <kaiwenx.deng@intel.com>, dev@dpdk.org, stable@dpdk.org, qiming.yang@intel.com, yidingx.zhou@intel.com, Aman Singh <aman.deep.singh@intel.com>, Yuying Zhang <yuying.zhang@intel.com>, Olivier Matz <olivier.matz@6wind.com>, Pablo de Lara <pablo.de.lara.guarch@intel.com> References: <20230804082849.533059-1-kaiwenx.deng@intel.com> <892f0567-e1ee-4283-9726-5db1dd92c2cb@amd.com> <20231116145817.78eb0954@hermes.local> <7a41467c-c863-4ea1-bf7c-9206bf56aa34@amd.com> <20231116192857.0d49ec5b@hermes.local> <1effba02-7a4c-47bd-8097-a158832c45d7@amd.com> <20231117082210.4d290191@hermes.local> From: Ferruh Yigit <ferruh.yigit@amd.com> Autocrypt: addr=ferruh.yigit@amd.com; keydata= xsFNBGJDD3EBEAC/M7Tk/DfQSmP1K96vyzdhfSBzlCaGtcxNXorq4fALruqVsD3oi0yfyEz9 4YN8x7py0o9EL8ZdpOX0skc0AMCDAaw033uWhCn0GLMeGRKUbfOAPvL6ecSDvGD7CJIO9j0J eZUvasBgPdM/435PEr9DmC6Ggzdzt8IuG4PoLi5jpFSfcqxZFCCxLUDEo/w0nuguk2FTuYJg B2zEZ4JTBZrw7hIHiFh8D8hr6YA6a5uTofq1tr+l048lbtdFUl8TR0aIExVzE4Z8qKZlcE+9 RQaewjK5Al1jLE4sHdmd3GN+IvgDF3D/fLsi25SKJDeGSdeHkOmaX0qGeM4WKIfU6iARRCiQ N3AmBIxZ/A7UXBKLaOyZ+/i3sE6Wb53nrO4i8+0K2Qwyh6LjTeiJAIjYKN43ppxz3DaI+QwQ 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<stable.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/stable>, <mailto:stable-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/stable/> List-Post: <mailto:stable@dpdk.org> List-Help: <mailto:stable-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/stable>, <mailto:stable-request@dpdk.org?subject=subscribe> Errors-To: stable-bounces@dpdk.org On 11/17/2023 4:22 PM, Stephen Hemminger wrote: > On Fri, 17 Nov 2023 09:29:41 +0000 > Ferruh Yigit <ferruh.yigit@amd.com> wrote: > >>>> I agree using 'l3_len' instead is correct fix. >>>> >>>> But this requires ABI/API change, >>>> plus do we have any reason to keep the padding, discarding it as this >>>> patch does is also simpler alternative. >>> >>> >>> Possibly an API version to change the args would work to fix. >>> >> >> rte_ipv4_udptcp_cksum_mbuf() and rte_ipv6_udptcp_cksum_mbuf() are inline >> functions, unfortunately we can't version them. >> >> But those functions already gets IP header as parameter, can't we use IP >> header to get the payload size? If so this can be fixed without updating >> API. > > Inlines are easier. Just make a fixed new function and make sure the old > one is not used. They shouldn't have been inline in the first place. > I guess inlines as because of performance concerns, since it is in datapath.