From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="GMLg8NFD" Received: from EUR04-VI1-obe.outbound.protection.outlook.com (mail-vi1eur04on2055.outbound.protection.outlook.com [40.107.8.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D0C36CB; Mon, 20 Nov 2023 14:05:57 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=ktbpzWWFK+zI7FQFsUBbzTIDCPJfEGMNw5kkI/HgUbWIuh50vhroTOZYPieU2vBOPV+2BzhkPfxoW0pe5n4AnBnoEBoNuX6yQLmNaIYHTdfsf1BOviPtFrBkgywXncI4jKbOgIj+cN8Xj1SF4HLOO3YlG4yLRtinExsEpsSimudFcE/U99ycZlehD00DbIerA2h4w3g0XpwkFlW9QqMf3zrCgqdEIrozgGUkpSBnuJQ8pcTwNdewJWdLg7Jif6zPIHzPR24C+eTHaNXFgBi7Ss82MTXmWPrzZH8Bn6ZUGnTH9ffoR6NTlyWbLJZHf9WdxHFoJoFhy/YVvkaJLXdzpQ== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=4vIEiFWDFLgsVdxjBvu41vCGjl9hnaRqyBLV6ov3NO4=; b=S3NPRtsu7JN6HTKFvzn5Abb9WPzOFlZAFhwVZxt+cfmjcgRpKn3hGCEVcFrfbtDInSE5CObe9zZawckQXtexz47n/yOssXQnY9gW42Zd25T9roFo/e9A1MZpBkdMJan2xX05LfnQs2d2GRNmPHj1x13o3gJWe+zuSKaNhmvLGAjerQk84C15Zk3sC4VH8a6ji9tEjAOHxr289G3W/wu/4wrjICHmulOFUTslCEpx8Vpap+TVaGRxB4ZbEFUPkO8QOPigoa3PzLQBJIpsc2XIMwJFInqltGq593SCiOI6fu5Hi/W5jx+YyMFOigO/4dINUDZtZgabHlr3e+MgH8DfZA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4vIEiFWDFLgsVdxjBvu41vCGjl9hnaRqyBLV6ov3NO4=; b=GMLg8NFD9B7xWXLuELecJSjJFYgCKLe6HfNh/0dB35ddOVe4ezjPBimMk/ZpvfQYX4nmftNmFW/BlrelcJrWT9upvNf06voGSgG+N3sTB8FP0i+9VydlMVfEGpt9wegJlr8laF+/3K/xqFhKmMiR0IlYra11CYMHKV9JQoksRI8= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from DB8PR04MB6459.eurprd04.prod.outlook.com (2603:10a6:10:103::19) by PR3PR04MB7258.eurprd04.prod.outlook.com (2603:10a6:102:80::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7025.17; Mon, 20 Nov 2023 22:05:55 +0000 Received: from DB8PR04MB6459.eurprd04.prod.outlook.com ([fe80::4dc0:8e9a:cf2b:137]) by DB8PR04MB6459.eurprd04.prod.outlook.com ([fe80::4dc0:8e9a:cf2b:137%5]) with mapi id 15.20.7025.017; Mon, 20 Nov 2023 22:05:54 +0000 Date: Tue, 21 Nov 2023 00:05:49 +0200 From: Vladimir Oltean To: Jakub Kicinski Cc: =?utf-8?B?S8O2cnk=?= Maincent , Florian Fainelli , Broadcom internal kernel review list , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Paolo Abeni , Richard Cochran , Radu Pirea , Jay Vosburgh , Andy Gospodarek , Nicolas Ferre , Claudiu Beznea , Willem de Bruijn , Jonathan Corbet , Horatiu Vultur , UNGLinuxDriver@microchip.com, Simon Horman , Thomas Petazzoni , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Maxime Chevallier Subject: Re: [PATCH net-next v7 15/16] net: ethtool: ts: Let the active time stamping layer be selectable Message-ID: <20231120220549.cvsz2ni3wj7mcukh@skbuf> References: <20231120105255.cgbart5amkg4efaz@skbuf> <20231120121440.3274d44c@kmaincent-XPS-13-7390> <20231120120601.ondrhbkqpnaozl2q@skbuf> <20231120144929.3375317e@kmaincent-XPS-13-7390> <20231120142316.d2emoaqeej2pg4s3@skbuf> <20231120093723.4d88fb2a@kernel.org> <20231120190023.ymog4yb2hcydhmua@skbuf> <20231120115839.74ee5492@kernel.org> <20231120211759.j5uvijsrgt2jqtwx@skbuf> <20231120133737.70dde657@kernel.org> Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20231120133737.70dde657@kernel.org> X-ClientProxiedBy: AM0PR04CA0060.eurprd04.prod.outlook.com (2603:10a6:208:1::37) To DB8PR04MB6459.eurprd04.prod.outlook.com (2603:10a6:10:103::19) Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB8PR04MB6459:EE_|PR3PR04MB7258:EE_ X-MS-Office365-Filtering-Correlation-Id: 2aec3ddc-c197-4c35-df17-08dbea14dde7 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: nmsi1x9J7BacTv+U/4xWHPVXleDA71cUiB3EO4wbADb60AlgdENybOl1ESYR6G5ZNZotdjlrRiZ6shRWmGSaKzqI8d0OzWT5URqALZNZxmlOhx0noQ+qlHsjELJm+Fppq84HPDK91JMeFgsF7Lmlwk9YX5dhOAqij8Z/JVH8yO6IGIt/ZWUO6lfNr9Xh5qsMT62TDMDi56iWnxrdA73rhAWuJ4qKYkxDAlhCV+4zA5DO54R9HBFrsC4bijtSKCg1D+MfzBqp/yQbv4WTQaKb5FZ64Eyrsno+dMbGad9FLj+3o9WUrDd/JFTx+L7O6APiyiMMUR+dlxiftzjDjVZCcTVoDS34xQihk1H1dR4yJxcRCiYTBKvL7hUv/mhJlGDbSbZ91+IB0mP7lAD6yRnFyDQUt0FZGk80I2BwmdNOAGSZFbNFqm+qVPte6YVMDZeBEy05FMC4jHXuLW16Nxn3gXQnlu2I1nRVlceIuik7X3YpcWyvQsz7fBKElfvwnpYd0yCpqHGdpyMbzPPxzCREQg9wZsy2y/cGR69CXqSiH/A= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DB8PR04MB6459.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(7916004)(376002)(366004)(136003)(39860400002)(346002)(396003)(230922051799003)(451199024)(1800799012)(64100799003)(186009)(6916009)(316002)(66946007)(54906003)(66556008)(66476007)(26005)(4326008)(8676002)(8936002)(38100700002)(41300700001)(33716001)(44832011)(86362001)(2906002)(4744005)(5660300002)(7416002)(966005)(6486002)(478600001)(9686003)(6512007)(6666004)(6506007)(1076003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?iso-8859-1?Q?FtK9LRRRGBEUMzidq2qT5bmZQAnNXu/co4U8YCR5LzmeDwvx2n1zFwVyKS?= =?iso-8859-1?Q?U5s/ytjCi9JfcttbmN+zQ1ud6gyYyqtui1LBwaWO6PEZiwTXScKF1o14lr?= =?iso-8859-1?Q?TL02ggf5AgdXOntQzI5YFVB+qE/6ItYMxiHbqLN92H5HPuLhm5Z2EDKTGp?= =?iso-8859-1?Q?PTehZXDXIQykEsuYbEJnjyPpQLZOP7s87XaO2/J4VfpBAZFn0FPZqYLwmf?= =?iso-8859-1?Q?MIQScll7+v2uZjRcA7mVZtCKXz6MCndyjhCsykxnJQKU8/F4Yo9nsVoByh?= =?iso-8859-1?Q?6bJ5KotUVEFQhtUvn4Ja6lEe33nhPd7qs65mGrEPAufCT9yJNWKV8c7Dmz?= =?iso-8859-1?Q?MgbZ02BJw4fkTaag9DVj00MCVBIqhIn5rG+twP7X6Jx0tjyLcK2z7iPeLJ?= =?iso-8859-1?Q?Wz9RI/TwKNoRLWLBoqAtiuraATVJmxPc1KbsXdkG6o+zOKrK2Z1byCVMub?= =?iso-8859-1?Q?vArYu9PmlC5VTpzdtKEuDsTb8wU1ub+UPX9qn9MCr8IeVWRoTsyV85snIt?= =?iso-8859-1?Q?TyLHqNNHGrs5I6ehpOb/P6kmFHh0cg7UTuqjHb26pU0XWYhSntdP20wwvm?= =?iso-8859-1?Q?pT5XQk6FW6sN2L9Hczr/xInxsApR6umWqJUEV8KFNq+mizGghL/RaW8gmB?= =?iso-8859-1?Q?wPo2d34sI0JToGEjINx+UDXJER0JcoUqCUFl8Wy7ZX0BXpJEXD1Si+rqiV?= =?iso-8859-1?Q?t4R8DY3IYboOcDJmOEwNFcLkEw/7ES+2czeVgdGd8rBbEcmgM/pOX5p6vI?= =?iso-8859-1?Q?FXGV9UauOLg1F8otM82mkiiE2Nf0UAvceLyQK5cIV3jCqcSl7rMAR4nxGL?= =?iso-8859-1?Q?4Ggi6rCJoANZRO982EO42AOcNF1WJEHdDjs2bsGnm0lZ3fR9rtPzfFNRjn?= =?iso-8859-1?Q?xZYLBqJ9lurQIuoKgLv890BOSIQQU7efsKjGeSMy/gywJW5uaaFZEVWy1M?= =?iso-8859-1?Q?PDxWyvAsvRACv+IgBnOmYghuHul2w/IfvlKmwtqc5Qtumq17CTFvDafPoA?= =?iso-8859-1?Q?lobxHMLrcND5r+fMGC1I2ir23n6/6zMq23fpMHmlmq1dZ9esJeqSnJlI66?= =?iso-8859-1?Q?Z3C2gAA2hXcb6r2hTOwLrjhgdZkp3Oo59rAcIdrX2zk9ZxV9Xs9sWJk4Bx?= =?iso-8859-1?Q?m3DjtfZ8mdWBvxO2NLMijSVGCBKwo2bsNf2PydlsW8OhbiIDMJzlGgVoP7?= =?iso-8859-1?Q?a/duEBLBTAMW6IKBdvY7OZFYSu6BGqGatluLXb5LHlRnmlCHe/eFcjhnKG?= =?iso-8859-1?Q?6ndHXW30kHzz6JVBUHQH5SCPTyTaiKTPlsJwta5nzoCsZF3wub4JlK83+u?= =?iso-8859-1?Q?ZZQQ+C9nDw9PB6d/GgjpImTVSwtJFL4aOkDcz+6GnS/RHhP3Rp9q1s+KCm?= =?iso-8859-1?Q?nIkVD6yNv1WdJBWKbmgkeIHQzYlCYlPHzgAsTTojvqvlb0mqahxyJ0arnL?= =?iso-8859-1?Q?50bjGD1pEbc7oHuSn1vb4K40fc4vsoPeXwEcdtai/QPaQwgTXCj+SKm+HK?= =?iso-8859-1?Q?8KRLlagZDvsTkB7M+uhLssL3NkXvBoNQTRofsnOTUyg955uhtgXuIYU6Wn?= =?iso-8859-1?Q?526G4CKaca/2FrtmaScP292RwSigtSEu9IQ1nDgmTkoF6k0xxkMB8KVDiV?= =?iso-8859-1?Q?a7feedUsxf6er1v19xrVL9LRJnIxI3xzxB/2wuNDrptcx8iDtOugXyeA?= =?iso-8859-1?Q?=3D=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2aec3ddc-c197-4c35-df17-08dbea14dde7 X-MS-Exchange-CrossTenant-AuthSource: DB8PR04MB6459.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Nov 2023 22:05:54.7574 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: KRf301wSRCNSRu1jjcSUNCRirsMGduvJu1guWEjD+oA4vWXkTGX1WxpmsFMwzgNpPb8GHvjYe3lkwjSzrRbfBg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: PR3PR04MB7258 On Mon, Nov 20, 2023 at 01:37:37PM -0800, Jakub Kicinski wrote: > > Is it an accurate summary? > > Yes. > > For now we can impose the requirement that only one can be active > easily at the kernel level. But the uAPI should allow expressing more. I see. That's quite something to think about for Köry. In its defense, I also agree that this idea seems the most orthogonal to everything else that we have or may want to add in the future, and is not likely to become obsoleted by some other mechanism that can achieve the same thing, but in a more flexible way. It's just that it's quite the task. I sense it may be time to dust off and submit the rest of my ndo_hwtstamp_get()/ ndo_hwtstamp_set() conversions before a netlink conversion of SIOCGHWTSTAMP/SIOCSHWTSTAMP could even take place... https://github.com/vladimiroltean/linux/commits/ndo-hwtstamp-v9