From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F9EBC43462 for ; Wed, 31 Mar 2021 17:51:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DB55261074 for ; Wed, 31 Mar 2021 17:51:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234580AbhCaRum (ORCPT ); Wed, 31 Mar 2021 13:50:42 -0400 Received: from mail-dm6nam12on2042.outbound.protection.outlook.com ([40.107.243.42]:53728 "EHLO NAM12-DM6-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234446AbhCaRuK (ORCPT ); Wed, 31 Mar 2021 13:50:10 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=M4Vah5Q+jyCHYBreQWi9xHutu1K1TpqZDT+o8fxhn53Wqeoth4j5VWjwsEd2LQnRXUM5CjXl/Vd+1pXE5TVpMDYuv8NAPB9kMEmwsLABgDQ1xNe9znqlSxa3CpDOXk7kNFeRQMrLzpZEOKX9i/9tYf3+0QSp4hYgeEMHK9VNbOeb/1adhpCSEXt8aRSORi+tivuLgf378EHTO+o2H8cLFjqV83EYKaD98Im3hVRhVjn7mVIBXRFobd2ghgDhkTT0NFN7UNGwtE9tJkJgFo5OW9WOrSIqCG4ND2iX2qNSKImXKGaG/ldCa9DrjcmoqcVlRTFLfAsZyUdPPLNJLlTSYA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=y7kZ50nSrFz1GmBvwrIXFMUocQbTyUjurYjqnAbfrBY=; b=G7cPUX8jC9rT0ZCraWRJ7R7l28TW9Mmnn/93G8EIo2bCeKm/EhtM5miCX+3GmvxKaCxwU3pYtoOsPQDvb97G4PLdPo8gY7LEvvmJ5/640ex0bp8McqVgqvFQ5fuO2bfeHgB7TfYpKzfnc1UzebMe1Bsh2vuaE3ERQ6pa+aZXfVGgDjy+WSPgFt09U2dI/XiJ+7WwUAri/MXLORezrLTn+665tFQADWSJq3LKFhN4V73SX9cb0ReQvd/xU4TU+yJAM/CMspGQDzMKi/nIK6uOQFDdx0KL9l87BT5ZaSU1HqMJoEhnZqXGGbTOYrQkMiDYdGIQprfBfEPIemvvUXm6iQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=y7kZ50nSrFz1GmBvwrIXFMUocQbTyUjurYjqnAbfrBY=; b=eL27XyDEu4K3uUCZd9vtSjtAxju9pxdazl5jrFUpGaH/YLYm6t6nlLcgiXb8X79EULhX9wjNyLSTclayZlzj+OjaTN0BqZGbwByaLf5o7wHtn5ji/EwY6budU0o6oODUHxtzV0FWPkH+l8fab1nUpUoGDOZQpjse579UaIs+gWR4w6ORgJctWr3A9ouLbPTGiuQzjYSFEcy7pOq9zu1EimIC0g/J/Wt68q6lEkZfls50aZz/rpd2zvCMJTdTOCEGVfqllnjSQSoxmCgW2+G4UTSo5fuOCkL9PA/g8PW3n0hG8XcCqYhEBi47sHmc6c1IIS2DrTus+yue/jPWpdg7iQ== Authentication-Results: oracle.com; dkim=none (message not signed) header.d=none;oracle.com; dmarc=none action=none header.from=nvidia.com; Received: from BY5PR12MB3827.namprd12.prod.outlook.com (2603:10b6:a03:1ab::16) by BYAPR12MB2743.namprd12.prod.outlook.com (2603:10b6:a03:61::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3955.18; Wed, 31 Mar 2021 17:50:09 +0000 Received: from BY5PR12MB3827.namprd12.prod.outlook.com ([fe80::4c46:77c0:7d7:7e43]) by BY5PR12MB3827.namprd12.prod.outlook.com ([fe80::4c46:77c0:7d7:7e43%6]) with mapi id 15.20.3977.033; Wed, 31 Mar 2021 17:50:08 +0000 Date: Wed, 31 Mar 2021 14:50:06 -0300 From: Jason Gunthorpe To: Haakon Bugge Cc: Parav Pandit , Doug Ledford , OFED mailing list Subject: Re: [PATCH for-next] IB/cma: Introduce rdma_set_min_rnr_timer() Message-ID: <20210331175006.GQ1463678@nvidia.com> References: <2A5F5B02-4745-4EC1-974A-DE089F9FBE2C@oracle.com> <20210331131525.GH1463678@nvidia.com> <111062EB-22A4-4AE3-A31B-498445D344A7@oracle.com> <20210331133518.GJ1463678@nvidia.com> <20210331173514.GO1463678@nvidia.com> <2BA07D00-E144-4547-8F7F-77DB0C197706@oracle.com> <20210331173906.GP1463678@nvidia.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Originating-IP: [142.162.115.133] X-ClientProxiedBy: BL0PR01CA0024.prod.exchangelabs.com (2603:10b6:208:71::37) To BY5PR12MB3827.namprd12.prod.outlook.com (2603:10b6:a03:1ab::16) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from mlx.ziepe.ca (142.162.115.133) by BL0PR01CA0024.prod.exchangelabs.com (2603:10b6:208:71::37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3999.27 via Frontend Transport; Wed, 31 Mar 2021 17:50:08 +0000 Received: from jgg by mlx with local (Exim 4.94) (envelope-from ) id 1lReyk-006PMJ-VO; Wed, 31 Mar 2021 14:50:06 -0300 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 916f92df-1bd3-46e3-c65a-08d8f46d6cc9 X-MS-TrafficTypeDiagnostic: BYAPR12MB2743: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BY5PR12MB3827.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(376002)(366004)(39860400002)(136003)(396003)(346002)(66476007)(1076003)(478600001)(86362001)(2616005)(2906002)(186003)(6916009)(38100700001)(54906003)(36756003)(316002)(8936002)(426003)(9746002)(5660300002)(8676002)(9786002)(4744005)(4326008)(66946007)(26005)(33656002)(66556008);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?9zv+mnEd3Fr0tfJwQqohB87NJHftiEWB+IyBO2BWVEQKtsK+QoJCd7BOafw4?= =?us-ascii?Q?AtUXUH+y5mJGdu3MDjrLpvIwlkN2Wp3M3jRMiWDiKl70awRZm13J1Gzwh4v/?= =?us-ascii?Q?xxFQfrHMMjXn6jkPMjVkBqIzM2oPaqsrYH9wYpWOWwUn0ELG+SlhOJusNquK?= =?us-ascii?Q?h4Ic/ew6jmvNeHhTPBZr2qVQiKGe15ag+VYO5WazEwF+jsCcDjNne5bH+4SI?= =?us-ascii?Q?bL1CEFSvZQbtgeLhq7Az5IxYf3ObcPMsVs0hkb4f93g9fY45aLs8s56HNk/0?= =?us-ascii?Q?z4mIVylaXxTanQTZzJHD7kCeII2pnayHilLHzSlNtJILm69GezWzWqKciEHY?= =?us-ascii?Q?E+MASbNRkwJv7XQ+rmtVJAqjGOJs0iOjyMV8jfbNk9u2Eyv5aTtgTjmyikFj?= =?us-ascii?Q?ke/0kN5Ar6rOXypxNVbU64EUIM5bvqgRH4fCE8L3zzoBlRndbNsVVEbsYY3e?= =?us-ascii?Q?c1NIA480+aWDWkVtc19EYzCfFf6GNP31V8W5bkGy08Jzv6WBVx47SljM4n17?= =?us-ascii?Q?C1mT884Eb/Q+cayHFrtVJ7IyHWft2mESU6fb2RPHwT94t7U3IHT55NZJovh1?= =?us-ascii?Q?xH7FsaFQ9d7Xduh6iJKrEFRonc8biHc9mY4nSdOsmeuyW7MhbOFRIlOwskc2?= =?us-ascii?Q?Mo/xIPmWx/XOpmEv4XMwDrQ5Q9FgyMRW84bc7XzRWd4f++DXxf/sswEdyyYu?= =?us-ascii?Q?di2c51eIMZsArCtly1mxvszLC4DBuf5WQhJj1QQ/jor1KOyeY09hece5modp?= =?us-ascii?Q?uRJ5dKjS9rzCK8GNqV06QNvWaVdkb7dQio7y1NVFFr7SQIE4sug9MP/EuL3a?= =?us-ascii?Q?fntiNUWbco/RorheW7PxR1P5zg7OicX2INvMAwiF+HZisp3qLS2yTEPRYlhh?= =?us-ascii?Q?cBmMzZnNp8zBVSbbTqKd4yM2LLRbXFmTETrSojIj/LuciNhRDZ5LcEDe4NKu?= =?us-ascii?Q?OtoS7wOIp6wZfk4Qgq9eihIw2UCHEgXx9UJXjPMD4i8nVjaYOUZVAt5s5hxC?= =?us-ascii?Q?xu652RRWRJkyhdB4aHAJstpinbq48KYvepjqmO2lR7ZyntuJt8E9gHt9/sYC?= =?us-ascii?Q?WD/nEuCrIAskETKb4rBSDivYUg+hntODswD3oOVFJzdKcj2uSy61wk9IfVKF?= =?us-ascii?Q?jR9yOZxjfbd8K9r47fRKknRL35leuKlU4YdJ8Fe7V3C9tu1RQ0QBAd5KOv8y?= =?us-ascii?Q?zPf5JC50gB3jaA1CJJ+lMinM/gdmUs52RWQM3+Ll3ti1YrVk/8ji0ebKdj31?= =?us-ascii?Q?vSOO+aao5S4qmFuNlUFLB1On7C9+MuL4YjCc3IW5qmdyHOdey6bY7iXxwu/g?= =?us-ascii?Q?QfUB8EfHb1LcNRjn11LF8X0T/juyrtNTbYH2l3ZSkl/v6A=3D=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 916f92df-1bd3-46e3-c65a-08d8f46d6cc9 X-MS-Exchange-CrossTenant-AuthSource: BY5PR12MB3827.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Mar 2021 17:50:08.9299 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: BTPKvPgOjloAHOzsM95wm95dVjdciqyNrbdy7SZ/9G9Voq8cXo48bcjAHydAhLVh X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR12MB2743 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Wed, Mar 31, 2021 at 05:45:30PM +0000, Haakon Bugge wrote: > True. Local ACK Timeout is part of CM REQ. But that makes > 2c1619edef61 ("IB/cma: Define option to set ack timeout and pack > tos_set") fuzzy, as it claims in the commentary: "The timeout will > affect the local side of the QP, it is not negotiated with remote > side ..." Hmm, is it intended to replace the CM provided local ack timeout on the responder side? It doesn't look like it copied into the MAD though, and the qp_attr->timeout only looks like it is et for the IB_QPT_XRC_TGT case?? Very confusing indeed. Parav? Jason