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[ { "id": 116733, "web_url": "https://patches.dpdk.org/comment/116733/", "msgid": "<a9aad9dd-7663-b1e2-97c3-d4186ac15986@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/a9aad9dd-7663-b1e2-97c3-d4186ac15986@redhat.com", "date": "2020-07-28T07:15:11", "subject": "Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with MISC4", "submitter": { "id": 512, "url": "https://patches.dpdk.org/api/people/512/?format=api", "name": "Maxime Coquelin", "email": "maxime.coquelin@redhat.com" }, "content": "On 7/21/20 10:13 AM, Bing Zhao wrote:\n> When dynamic flex parser feature is introduced, the support for misc\n> parameters 4 of flow table entry (FTE) match set is needed. The\n> structure of \"mlx5_ifc_fte_match_param_bits\" is extended with\n> \"mlx5_ifc_fte_match_set_misc4_bits\" at the end of it. The total size\n> of the FTE match set will be changed into 384 bytes from 320 bytes.\n> Low level user space driver (rdma-core) will have the validation of\n> the length of FTE match set. In the old release that no MISC4\n> supported in the rdma-core, and this will break the backward\n> compatibility, even if the MISC4 is not used in most cases, like\n> in vDPA driver.\n> In order not to break the compatibility old rdma-core, the length\n> adjustment needs to be done. In mlx5 vDPA driver, the lengths of\n> the matcher and value are both set to 320 without MISC4. There is\n> no need to change the structure definition, all bytes of the MISC4\n> will be discarded if it is not needed. Since the MISC4 parameter\n> is aligned with a 64B boundary and so does the whole FTE match set\n> parameter, there is no need to take any padding and alignment into\n> consideration when calculating the size.\n> \n> Fixes: 32132fb8517c (\"net/mlx5: add flow translation of eCPRI header\")\n> \n> Signed-off-by: Bing Zhao <bingz@mellanox.com>\n> Acked-by: Matan Azrad <matan@mellanox.com>\n> ---\n> drivers/vdpa/mlx5/mlx5_vdpa_steer.c | 6 ++++--\n> 1 file changed, 4 insertions(+), 2 deletions(-)\n\nReviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>\n\nThanks,\nMaxime", "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 58505A0521;\n\tTue, 28 Jul 2020 09:15:20 +0200 (CEST)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id B597B1C0CE;\n\tTue, 28 Jul 2020 09:15:19 +0200 (CEST)", "from us-smtp-delivery-1.mimecast.com (us-smtp-2.mimecast.com\n [205.139.110.61]) by dpdk.org (Postfix) with ESMTP id 984231C0CD\n for <dev@dpdk.org>; Tue, 28 Jul 2020 09:15:18 +0200 (CEST)", "from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com\n [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id\n us-mta-154-4sUL7dmgNhCGlF9He3B29w-1; Tue, 28 Jul 2020 03:15:15 -0400", "from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com\n [10.5.11.14])\n (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n (No client certificate requested)\n by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 36EA6102C7ED;\n Tue, 28 Jul 2020 07:15:14 +0000 (UTC)", "from [10.36.110.21] (unknown [10.36.110.21])\n by smtp.corp.redhat.com (Postfix) with ESMTPS id 207CB5DA75;\n Tue, 28 Jul 2020 07:15:12 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1595920517;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references:autocrypt:autocrypt;\n bh=v5Q0V+VMkTwso8S+gFjEp0i+K6ABDPzd6rsRY94nRg8=;\n b=WghmPVzyZrU98qz0yA3E7WsqZAj9IozeMwLgBvueeEVQAYdmhTtcGVJuogibbRzrjksTZW\n 5uhKGyDnH3a5aTT78hGIVg/tlviNeoE2UTOLHbGbndZSKw+pEAlA0g43ILjOuZaG5Hmg3l\n 6iS0ZwbGv6cJWDvy9VhOONecd6WEIpw=", "X-MC-Unique": "4sUL7dmgNhCGlF9He3B29w-1", "To": "Bing Zhao <bingz@mellanox.com>, viacheslavo@mellanox.com,\n matan@mellanox.com", "Cc": "dev@dpdk.org", "References": "<1595319220-173871-1-git-send-email-bingz@mellanox.com>", "From": "Maxime Coquelin <maxime.coquelin@redhat.com>", "Autocrypt": "addr=maxime.coquelin@redhat.com; keydata=\n mQINBFOEQQIBEADjNLYZZqghYuWv1nlLisptPJp+TSxE/KuP7x47e1Gr5/oMDJ1OKNG8rlNg\n kLgBQUki3voWhUbMb69ybqdMUHOl21DGCj0BTU3lXwapYXOAnsh8q6RRM+deUpasyT+Jvf3a\n gU35dgZcomRh5HPmKMU4KfeA38cVUebsFec1HuJAWzOb/UdtQkYyZR4rbzw8SbsOemtMtwOx\n YdXodneQD7KuRU9IhJKiEfipwqk2pufm2VSGl570l5ANyWMA/XADNhcEXhpkZ1Iwj3TWO7XR\n uH4xfvPl8nBsLo/EbEI7fbuUULcAnHfowQslPUm6/yaGv6cT5160SPXT1t8U9QDO6aTSo59N\n jH519JS8oeKZB1n1eLDslCfBpIpWkW8ZElGkOGWAN0vmpLfdyiqBNNyS3eGAfMkJ6b1A24un\n /TKc6j2QxM0QK4yZGfAxDxtvDv9LFXec8ENJYsbiR6WHRHq7wXl/n8guyh5AuBNQ3LIK44x0\n KjGXP1FJkUhUuruGyZsMrDLBRHYi+hhDAgRjqHgoXi5XGETA1PAiNBNnQwMf5aubt+mE2Q5r\n qLNTgwSo2dpTU3+mJ3y3KlsIfoaxYI7XNsPRXGnZi4hbxmeb2NSXgdCXhX3nELUNYm4ArKBP\n LugOIT/zRwk0H0+RVwL2zHdMO1Tht1UOFGfOZpvuBF60jhMzbQARAQABtCxNYXhpbWUgQ29x\n dWVsaW4gPG1heGltZS5jb3F1ZWxpbkByZWRoYXQuY29tPokCOAQTAQIAIgUCV3u/5QIbAwYL\n CQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQyjiNKEaHD4ma2g/+P+Hg9WkONPaY1J4AR7Uf\n kBneosS4NO3CRy0x4WYmUSLYMLx1I3VH6SVjqZ6uBoYy6Fs6TbF6SHNc7QbB6Qjo3neqnQR1\n 71Ua1MFvIob8vUEl3jAR/+oaE1UJKrxjWztpppQTukIk4oJOmXbL0nj3d8dA2QgHdTyttZ1H\n xzZJWWz6vqxCrUqHU7RSH9iWg9R2iuTzii4/vk1oi4Qz7y/q8ONOq6ffOy/t5xSZOMtZCspu\n Mll2Szzpc/trFO0pLH4LZZfz/nXh2uuUbk8qRIJBIjZH3ZQfACffgfNefLe2PxMqJZ8mFJXc\n RQO0ONZvwoOoHL6CcnFZp2i0P5ddduzwPdGsPq1bnIXnZqJSl3dUfh3xG5ArkliZ/++zGF1O\n wvpGvpIuOgLqjyCNNRoR7cP7y8F24gWE/HqJBXs1qzdj/5Hr68NVPV1Tu/l2D1KMOcL5sOrz\n 2jLXauqDWn1Okk9hkXAP7+0Cmi6QwAPuBT3i6t2e8UdtMtCE4sLesWS/XohnSFFscZR6Vaf3\n gKdWiJ/fW64L6b9gjkWtHd4jAJBAIAx1JM6xcA1xMbAFsD8gA2oDBWogHGYcScY/4riDNKXi\n lw92d6IEHnSf6y7KJCKq8F+Jrj2BwRJiFKTJ6ChbOpyyR6nGTckzsLgday2KxBIyuh4w+hMq\n TGDSp2rmWGJjASq5Ag0EVPSbkwEQAMkaNc084Qvql+XW+wcUIY+Dn9A2D1gMr2BVwdSfVDN7\n 0ZYxo9PvSkzh6eQmnZNQtl8WSHl3VG3IEDQzsMQ2ftZn2sxjcCadexrQQv3Lu60Tgj7YVYRM\n H+fLYt9W5YuWduJ+FPLbjIKynBf6JCRMWr75QAOhhhaI0tsie3eDsKQBA0w7WCuPiZiheJaL\n 4MDe9hcH4rM3ybnRW7K2dLszWNhHVoYSFlZGYh+MGpuODeQKDS035+4H2rEWgg+iaOwqD7bg\n CQXwTZ1kSrm8NxIRVD3MBtzp9SZdUHLfmBl/tLVwDSZvHZhhvJHC6Lj6VL4jPXF5K2+Nn/Su\n CQmEBisOmwnXZhhu8ulAZ7S2tcl94DCo60ReheDoPBU8PR2TLg8rS5f9w6mLYarvQWL7cDtT\n d2eX3Z6TggfNINr/RTFrrAd7NHl5h3OnlXj7PQ1f0kfufduOeCQddJN4gsQfxo/qvWVB7PaE\n 1WTIggPmWS+Xxijk7xG6x9McTdmGhYaPZBpAxewK8ypl5+yubVsE9yOOhKMVo9DoVCjh5To5\n aph7CQWfQsV7cd9PfSJjI2lXI0dhEXhQ7lRCFpf3V3mD6CyrhpcJpV6XVGjxJvGUale7+IOp\n sQIbPKUHpB2F+ZUPWds9yyVxGwDxD8WLqKKy0WLIjkkSsOb9UBNzgRyzrEC9lgQ/ABEBAAGJ\n Ah8EGAECAAkFAlT0m5MCGwwACgkQyjiNKEaHD4nU8hAAtt0xFJAy0sOWqSmyxTc7FUcX+pbD\n KVyPlpl6urKKMk1XtVMUPuae/+UwvIt0urk1mXi6DnrAN50TmQqvdjcPTQ6uoZ8zjgGeASZg\n jj0/bJGhgUr9U7oG7Hh2F8vzpOqZrdd65MRkxmc7bWj1k81tOU2woR/Gy8xLzi0k0KUa8ueB\n iYOcZcIGTcs9CssVwQjYaXRoeT65LJnTxYZif2pfNxfINFzCGw42s3EtZFteczClKcVSJ1+L\n +QUY/J24x0/ocQX/M1PwtZbB4c/2Pg/t5FS+s6UB1Ce08xsJDcwyOPIH6O3tccZuriHgvqKP\n yKz/Ble76+NFlTK1mpUlfM7PVhD5XzrDUEHWRTeTJSvJ8TIPL4uyfzhjHhlkCU0mw7Pscyxn\n DE8G0UYMEaNgaZap8dcGMYH/96EfE5s/nTX0M6MXV0yots7U2BDb4soLCxLOJz4tAFDtNFtA\n wLBhXRSvWhdBJZiig/9CG3dXmKfi2H+wdUCSvEFHRpgo7GK8/Kh3vGhgKmnnxhl8ACBaGy9n\n fxjSxjSO6rj4/MeenmlJw1yebzkX8ZmaSi8BHe+n6jTGEFNrbiOdWpJgc5yHIZZnwXaW54QT\n UhhSjDL1rV2B4F28w30jYmlRmm2RdN7iCZfbyP3dvFQTzQ4ySquuPkIGcOOHrvZzxbRjzMx1\n Mwqu3GQ=", "Message-ID": "<a9aad9dd-7663-b1e2-97c3-d4186ac15986@redhat.com>", "Date": "Tue, 28 Jul 2020 09:15:11 +0200", "User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101\n Thunderbird/68.9.0", "MIME-Version": "1.0", "In-Reply-To": "<1595319220-173871-1-git-send-email-bingz@mellanox.com>", "Content-Language": "en-US", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.14", "X-Mimecast-Spam-Score": "0", "X-Mimecast-Originator": "redhat.com", "Content-Type": "text/plain; charset=utf-8", "Content-Transfer-Encoding": "7bit", "Subject": "Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with MISC4", "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>" }, "addressed": null }, { "id": 116766, "web_url": "https://patches.dpdk.org/comment/116766/", "msgid": "<VI1PR05MB41929C7A637F66EF92E4D419DD730@VI1PR05MB4192.eurprd05.prod.outlook.com>", "list_archive_url": "https://inbox.dpdk.org/dev/VI1PR05MB41929C7A637F66EF92E4D419DD730@VI1PR05MB4192.eurprd05.prod.outlook.com", "date": "2020-07-28T11:11:33", "subject": "Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with MISC4", "submitter": { "id": 1357, "url": "https://patches.dpdk.org/api/people/1357/?format=api", "name": "Bing Zhao", "email": "bingz@mellanox.com" }, "content": "Thanks a lot.\n\nBR. Bing\n\n> -----Original Message-----\n> From: Maxime Coquelin <maxime.coquelin@redhat.com>\n> Sent: Tuesday, July 28, 2020 3:15 PM\n> To: Bing Zhao <bingz@mellanox.com>; Slava Ovsiienko\n> <viacheslavo@mellanox.com>; Matan Azrad <matan@mellanox.com>\n> Cc: dev@dpdk.org\n> Subject: Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with\n> MISC4\n> \n> \n> \n> On 7/21/20 10:13 AM, Bing Zhao wrote:\n> > When dynamic flex parser feature is introduced, the support for misc\n> > parameters 4 of flow table entry (FTE) match set is needed. The\n> > structure of \"mlx5_ifc_fte_match_param_bits\" is extended with\n> > \"mlx5_ifc_fte_match_set_misc4_bits\" at the end of it. The total size\n> > of the FTE match set will be changed into 384 bytes from 320 bytes.\n> > Low level user space driver (rdma-core) will have the validation of\n> > the length of FTE match set. In the old release that no MISC4\n> > supported in the rdma-core, and this will break the backward\n> > compatibility, even if the MISC4 is not used in most cases, like in\n> > vDPA driver.\n> > In order not to break the compatibility old rdma-core, the length\n> > adjustment needs to be done. In mlx5 vDPA driver, the lengths of\n> the\n> > matcher and value are both set to 320 without MISC4. There is no\n> need\n> > to change the structure definition, all bytes of the MISC4 will be\n> > discarded if it is not needed. Since the MISC4 parameter is aligned\n> > with a 64B boundary and so does the whole FTE match set parameter,\n> > there is no need to take any padding and alignment into\n> consideration\n> > when calculating the size.\n> >\n> > Fixes: 32132fb8517c (\"net/mlx5: add flow translation of eCPRI\n> header\")\n> >\n> > Signed-off-by: Bing Zhao <bingz@mellanox.com>\n> > Acked-by: Matan Azrad <matan@mellanox.com>\n> > ---\n> > drivers/vdpa/mlx5/mlx5_vdpa_steer.c | 6 ++++--\n> > 1 file changed, 4 insertions(+), 2 deletions(-)\n> \n> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>\n> \n> Thanks,\n> Maxime", "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 B2B43A052B;\n\tTue, 28 Jul 2020 13:11:38 +0200 (CEST)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 0EAE31BE8A;\n\tTue, 28 Jul 2020 13:11:37 +0200 (CEST)", "from EUR01-DB5-obe.outbound.protection.outlook.com\n (mail-eopbgr150043.outbound.protection.outlook.com [40.107.15.43])\n by dpdk.org (Postfix) with ESMTP id 962072B9C\n for <dev@dpdk.org>; Tue, 28 Jul 2020 13:11:35 +0200 (CEST)", "from VI1PR05MB4192.eurprd05.prod.outlook.com (2603:10a6:803:4e::18)\n by VI1PR05MB5469.eurprd05.prod.outlook.com (2603:10a6:803:8d::15)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3216.28; Tue, 28 Jul\n 2020 11:11:34 +0000", "from VI1PR05MB4192.eurprd05.prod.outlook.com\n ([fe80::b039:79e7:f4cc:5862]) by VI1PR05MB4192.eurprd05.prod.outlook.com\n ([fe80::b039:79e7:f4cc:5862%4]) with mapi id 15.20.3216.033; Tue, 28 Jul 2020\n 11:11:33 +0000" ], "ARC-Seal": "i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none;\n b=jBIo68Io/dSbeVtTpsfcK3gnSgiDu6gRjg/xBYOmeLutigngJK2JQXiHhpbaRDIDnGAJNuZ9P1cG4TDmEi9GR8CUOQ8EJp9UOlQMYyeOxfu0KF28Di6iYyaZovn7exJLajL8l1tuaVcWxBkPiYQUJ5nbKQsf0VQyVLnp8FWiEcH6TBJMoDEwh4NBigE1bnjI2fjRhrmFwdMnYxihyMF1zCW1XrxNN1VFaJFqsi77VNhorl1Ce/vIdH7NpEvT0YnvHn4yzbKElNdM198Y8wq4fxRNwC+CLDFxdzpVXqlXwPw0lysRAx5CCK65bUkRPJ5GRgfIOw9Z0xfpuc2Ep5pPMg==", "ARC-Message-Signature": "i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com;\n s=arcselector9901;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=W3use/POQN3xSMWP9sNjgZc32GVAY5JEJgRsPNenIwM=;\n b=TwcoWJvZM4mo89SLi+HbpeCjmOO9SadUQS39IgOFI1uaFVWZC6KigEwTwrv6RCG/VJNB86Cm/VQu1ZY9dMWIxufAGvJhwq/l9+xYdrUcA+iju8Z1rIQMEGJDgt1umGVrPW3TW5TUwNLthz3UwSAvJd+ZGCoYEu/gEmp+fsBWrL5aGSrajI9WflME6pfPAcbPtOQj/JK2wkm0MyggteAFTirEwer/ZyDZIa0caJiuo8fghptsy+wmCZRBRDII6YDjKaepybA7TKynrwQF6b8RQfBrCF3m506sKMlfcWGhdTpB3fgV1NTK3PnauBtK+CCt58m3xMjoPKd2EiLhC4bFig==", "ARC-Authentication-Results": "i=1; mx.microsoft.com 1; spf=pass\n smtp.mailfrom=mellanox.com; dmarc=pass action=none header.from=mellanox.com;\n dkim=pass header.d=mellanox.com; arc=none", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=Mellanox.com;\n s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=W3use/POQN3xSMWP9sNjgZc32GVAY5JEJgRsPNenIwM=;\n b=Mu2dvvuUKhbzQ4eWJ/kAH6XeqZJLQZlsoR6wDDtXCXTjuV5o9cxJWtvnRE4QsUgKpdTm+5YfIMnn1lTG41gcGHSvBKGx+dC/mDNmosXKy0j0qfEUwF8bXSzNMrmKLCCmKwEJVEC+nsUdtx+scSUqV/umvQ9CWf9uGj7vyuGjzrQ=", "From": "Bing Zhao <bingz@mellanox.com>", "To": "Maxime Coquelin <maxime.coquelin@redhat.com>, Slava Ovsiienko\n <viacheslavo@mellanox.com>, Matan Azrad <matan@mellanox.com>", "CC": "\"dev@dpdk.org\" <dev@dpdk.org>", "Thread-Topic": "[dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with MISC4", "Thread-Index": "AQHWXzbtcTmwDk3MHk+Z5vwPAWm7FakcnzuAgABB8GA=", "Date": "Tue, 28 Jul 2020 11:11:33 +0000", "Message-ID": "\n <VI1PR05MB41929C7A637F66EF92E4D419DD730@VI1PR05MB4192.eurprd05.prod.outlook.com>", "References": "<1595319220-173871-1-git-send-email-bingz@mellanox.com>\n <a9aad9dd-7663-b1e2-97c3-d4186ac15986@redhat.com>", "In-Reply-To": "<a9aad9dd-7663-b1e2-97c3-d4186ac15986@redhat.com>", "Accept-Language": "en-US", "Content-Language": "en-US", "X-MS-Has-Attach": "", "X-MS-TNEF-Correlator": "", "authentication-results": "redhat.com; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "MIME-Version": "1.0", "X-OriginatorOrg": "Mellanox.com", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-AuthSource": "VI1PR05MB4192.eurprd05.prod.outlook.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 24ee5c6f-44b2-4373-70b5-08d832e6fce8", "X-MS-Exchange-CrossTenant-originalarrivaltime": "28 Jul 2020 11:11:33.8174 (UTC)", "X-MS-Exchange-CrossTenant-fromentityheader": "Hosted", "X-MS-Exchange-CrossTenant-id": "a652971c-7d2e-4d9b-a6a4-d149256f461b", "X-MS-Exchange-CrossTenant-mailboxtype": "HOSTED", "X-MS-Exchange-CrossTenant-userprincipalname": "\n 6gJkJ7+8KeHauNX4VqcRsxtm7K7AGIgzSNdz/kt/QRm2A9cpoJNeiF53Bi1kLSivyM/eedtPfNH6vb+XZVKGsQ==", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "VI1PR05MB5469", "Subject": "Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with MISC4", "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>" }, "addressed": null }, { "id": 116784, "web_url": "https://patches.dpdk.org/comment/116784/", "msgid": "<3691e7f6-5cae-a97c-db4f-66a91cdde5c6@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/3691e7f6-5cae-a97c-db4f-66a91cdde5c6@redhat.com", "date": "2020-07-28T15:25:08", "subject": "Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with MISC4", "submitter": { "id": 512, "url": "https://patches.dpdk.org/api/people/512/?format=api", "name": "Maxime Coquelin", "email": "maxime.coquelin@redhat.com" }, "content": "On 7/21/20 10:13 AM, Bing Zhao wrote:\n> When dynamic flex parser feature is introduced, the support for misc\n> parameters 4 of flow table entry (FTE) match set is needed. The\n> structure of \"mlx5_ifc_fte_match_param_bits\" is extended with\n> \"mlx5_ifc_fte_match_set_misc4_bits\" at the end of it. The total size\n> of the FTE match set will be changed into 384 bytes from 320 bytes.\n> Low level user space driver (rdma-core) will have the validation of\n> the length of FTE match set. In the old release that no MISC4\n> supported in the rdma-core, and this will break the backward\n> compatibility, even if the MISC4 is not used in most cases, like\n> in vDPA driver.\n> In order not to break the compatibility old rdma-core, the length\n> adjustment needs to be done. In mlx5 vDPA driver, the lengths of\n> the matcher and value are both set to 320 without MISC4. There is\n> no need to change the structure definition, all bytes of the MISC4\n> will be discarded if it is not needed. Since the MISC4 parameter\n> is aligned with a 64B boundary and so does the whole FTE match set\n> parameter, there is no need to take any padding and alignment into\n> consideration when calculating the size.\n> \n> Fixes: 32132fb8517c (\"net/mlx5: add flow translation of eCPRI header\")\n> \n> Signed-off-by: Bing Zhao <bingz@mellanox.com>\n> Acked-by: Matan Azrad <matan@mellanox.com>\n> ---\n> drivers/vdpa/mlx5/mlx5_vdpa_steer.c | 6 ++++--\n> 1 file changed, 4 insertions(+), 2 deletions(-)\n\nPlease note the sha-1 in the fixes tag was not good, I fixed it.\n\nApplied to dpdk-next-virtio/master\n\nThanks,\nMaxime", "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 8CED3A052B;\n\tTue, 28 Jul 2020 17:25:19 +0200 (CEST)", "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id E2BB12B9C;\n\tTue, 28 Jul 2020 17:25:18 +0200 (CEST)", "from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com\n [205.139.110.120]) by dpdk.org (Postfix) with ESMTP id 6C54A2B8D\n for <dev@dpdk.org>; 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Linux x86_64; rv:68.0) Gecko/20100101\n Thunderbird/68.10.0", "MIME-Version": "1.0", "In-Reply-To": "<1595319220-173871-1-git-send-email-bingz@mellanox.com>", "Content-Language": "en-US", "X-Scanned-By": "MIMEDefang 2.84 on 10.5.11.23", "X-Mimecast-Spam-Score": "0", "X-Mimecast-Originator": "redhat.com", "Content-Type": "text/plain; charset=utf-8", "Content-Transfer-Encoding": "7bit", "Subject": "Re: [dpdk-dev] [PATCH] vdpa/mlx5: fix the compatibility with MISC4", "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>" }, "addressed": null } ]