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,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 4EF0FC432BE for ; Tue, 31 Aug 2021 09:08:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3327F60F23 for ; Tue, 31 Aug 2021 09:08:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240555AbhHaJIx (ORCPT ); Tue, 31 Aug 2021 05:08:53 -0400 Received: from mail-am6eur05on2081.outbound.protection.outlook.com ([40.107.22.81]:18528 "EHLO EUR05-AM6-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S240370AbhHaJIw (ORCPT ); Tue, 31 Aug 2021 05:08:52 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=iZMXwBS1D39+5lx0ePqiFwXoNn/CLAwfgiS3uuAjTLW+yVLfIn/jlN3I7+56pwPQ9KbC5PttKD2j42UXSi+4cjnir5a14C09h3UeHq49/tpyIs+Mv5BqyoV0tQZnEDfUMwuJf7mz+EULtrqBptysPZhIHf7l+CSq0FjrXsbUbtY3r0e7Gk+Sem97TaQ09+LwPmBEXWm4xBu4KR4cr3t11GL/sQADeX54trJRUYsm2ULcu/fPTJrYAEW3VOLZgHXQU6UH8xu93xjcX9XecNVMpN9/CMx5NjtNsjW7aTNjB8DVp1/VM7WxYKuONBMkxDhDzU830hJDo3lshqW30iFmuQ== 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=fCtOk83aIHrVKMzoEXLAtxfpmb4Gm8l8aIUDnYEgMvw=; b=Ck9BP4ab53OF0wTsG+14CWASCMR4QyPO4//3cB5bWAlWG3Dd9Pp2fXVVFx3GmR8CE5ThJXkmerSrL5dWgGN6urxmOPSsAqqJ3YhV2IXqT1nIQciNhnJ3Tx06AS69mYJ3dcZe/aCHjQj+ZodBegDoqS1d+NAHhhXAAIskprmiDWSThee9KDcd5ufmZD/7F65LgmzeWkixLXQlVch2d7J+sHRKYlmgU/b6mkPMKcq4Hmn8co//SIkZtsA38beJxn+PSQWey8bq9ciubOc4py37ZsOtq679GFtEvqh7SwwlAiDaes4DqEv8xqgLn1PTz2hEYB2XKKgdFlQklMI46apVYQ== 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=fCtOk83aIHrVKMzoEXLAtxfpmb4Gm8l8aIUDnYEgMvw=; b=X4spzLDX1zhyedsvhD1KbHJcvQJcii1QnsDv5aRtLZKbH+LmHb3IaWLiYRWXsoP0ScAKg0SPkgBwY/mH+NxOdjqeAWcONFBI7WVaqEAxXH4M35jCM+kCFHESOgis+tORQZd8hdyYdz52uDaxvok94flW1uhcQ8r3otVcjUUCVow= Received: from VI1PR04MB5136.eurprd04.prod.outlook.com (2603:10a6:803:55::19) by VE1PR04MB7374.eurprd04.prod.outlook.com (2603:10a6:800:1ac::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4457.19; Tue, 31 Aug 2021 09:07:55 +0000 Received: from VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::109:1995:3e6b:5bd0]) by VI1PR04MB5136.eurprd04.prod.outlook.com ([fe80::109:1995:3e6b:5bd0%2]) with mapi id 15.20.4457.024; Tue, 31 Aug 2021 09:07:55 +0000 From: Vladimir Oltean To: Xiaoliang Yang CC: "davem@davemloft.net" , "linux-kernel@vger.kernel.org" , "netdev@vger.kernel.org" , "allan.nielsen@microchip.com" , "joergen.andreasen@microchip.com" , "UNGLinuxDriver@microchip.com" , "vinicius.gomes@intel.com" , "michael.chan@broadcom.com" , "saeedm@mellanox.com" , "jiri@mellanox.com" , "idosch@mellanox.com" , "alexandre.belloni@bootlin.com" , "kuba@kernel.org" , Po Liu , Leo Li Subject: Re: [PATCH v3 net-next 5/8] net: dsa: felix: support psfp filter on vsc9959 Thread-Topic: [PATCH v3 net-next 5/8] net: dsa: felix: support psfp filter on vsc9959 Thread-Index: AQHXnhk3bR+2BJOkCk2OO1PW76puEquNPsAAgAANEQCAAAFHAIAAA9qAgAACOAA= Date: Tue, 31 Aug 2021 09:07:55 +0000 Message-ID: <20210831090754.3z7ihy3iqn6ixyhh@skbuf> References: <20210831034536.17497-1-xiaoliang.yang_1@nxp.com> <20210831034536.17497-6-xiaoliang.yang_1@nxp.com> <20210831075450.u7smg5bibz3vvw4q@skbuf> <20210831084610.gadyyrkm4fwzf6hp@skbuf> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: nxp.com; dkim=none (message not signed) header.d=none;nxp.com; dmarc=none action=none header.from=nxp.com; x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 6c06b7b2-a1c3-48f6-30f3-08d96c5ed1fc x-ms-traffictypediagnostic: VE1PR04MB7374: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 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:VI1PR04MB5136.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(7916004)(4636009)(396003)(39860400002)(136003)(366004)(376002)(346002)(66476007)(76116006)(33716001)(2906002)(6486002)(8676002)(64756008)(66946007)(6636002)(66446008)(66556008)(4326008)(8936002)(6506007)(478600001)(316002)(91956017)(54906003)(38100700002)(26005)(44832011)(86362001)(6862004)(186003)(38070700005)(122000001)(9686003)(6512007)(71200400001)(5660300002)(7416002)(1076003)(83380400001);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?us-ascii?Q?2QoYakKtOEHYwmNTLqGhxmmqSpvt/J0bX9q4G8+5Wn0QCTK1JH26L7ru9R0Q?= =?us-ascii?Q?lpmM89lpANz9Meb1viUT2n8Q+EAUfgl6bbsd5OPANHZAimf/eQGyuaugopfm?= =?us-ascii?Q?JHooJnxdyizCpNmXp7VU/RQBemPhpQB+S6z0CeWbFDp/4iFtJAZC4YA81ci+?= =?us-ascii?Q?AymsdyYZJxTshWjfYYhD1uixEdudkteOU0QferkLpMpvlkRyqDZCwCKTGi9h?= =?us-ascii?Q?+ycMFhe0QFnwB6yxRv5/pKdkin9lkLj3BJJvjmgz2AZMqJTRghnpdNrqenN3?= =?us-ascii?Q?88OYWpgonTHDoAWPun06pn2WiWt1+Uy8DJLrdt73i+w17+2SaiUuxqNXV9zr?= =?us-ascii?Q?TQpPSpnG9WiTEhLmO4zYGwXy0ZhGWw456xFPJr2gZNPNcrNWMqijAdHptpiP?= =?us-ascii?Q?zAV+894fpebtjpJiR3YLctN231TUYSd7cOwMbNhsNf4BQZbRaNu1Qr/Cqjcr?= =?us-ascii?Q?hkhW7nxGzP1Rljg5g4Jio2lSjKUjNo2k8EvTYJlsK9bY8K4UsJMcmWvA5RNl?= =?us-ascii?Q?MK2ub4WtWMWJwVHi1lFghmMkcuGbIQQ5jQ/I+7qyWtNp1vi9S81XqSU3WgSv?= =?us-ascii?Q?Xj53m4qM+VTM7dgKwFNHd3bZXnCp4tudJzdi7fBWSvt/2hcabuMXXwB9sa4L?= =?us-ascii?Q?xjLZmnIdnVKLlhgYdUO9DxgaNQiJbSis1OjTWqLU5B9en0skEUVMoA7RfHVE?= =?us-ascii?Q?XjNscdxHUgvDfDIr5I8ue0kxmfWuulwqGjWR+fDFmEQVOP6G9WHZagKSmwPG?= =?us-ascii?Q?5vVfpMqC1KHN5BmCCzR/H4MXTTcGOcxDUMfotV1dZR5J+tk+DwfGTNj5QNr+?= =?us-ascii?Q?HxigEMCthf25Foxah5lZhfeQuXREn3s5uPnI+07RPYiQVEBrQGHCKhwnjJ3v?= =?us-ascii?Q?WTjS1t0yBNI/Lmy9CqB3Nks6zFOGxuzePbVyZVpwqgYomW8NK61uQoTwXp0m?= =?us-ascii?Q?Zbvw+95j+i4W+fmcEt4jncD9FCBiRDkm3GEPOilyqehuIWHWOppC0hJfbPU+?= =?us-ascii?Q?ErkBy1bMjaS4GcmnURnmlX47V42hG1qEhanpGDOTzRUI4ukVvIJc7nogRRpT?= =?us-ascii?Q?nj5XvKZ5vVRqUxpHugE9yuIpLUaYeUZmyUC7upsK1sjb6TfLdo/2AqpYpnjP?= =?us-ascii?Q?exXZGtSKcgGQ22Oh7+phNof+5MFcVyxZahukcf+PMUrioLRznCtJkik2Fnip?= =?us-ascii?Q?d09nQpDAnLDpugQH3a/X2USWucOC2rMxKunZVXJcAQULQ8Yq2Iyw4zQFMZEl?= =?us-ascii?Q?4cnS97B5fdP7MZqPU89ixDjycE7R77z6NZ4hJ9Z+Wi7HFMTUYG1mFbB9R6VY?= =?us-ascii?Q?KNwLYViyHR+PJGsFPTW+NOaZ9XFFj+MwAjqhEh8zZZvT3A=3D=3D?= Content-Type: text/plain; charset="us-ascii" Content-ID: <48A4B01D60B40A4083A7C23EA27C80CA@eurprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB5136.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6c06b7b2-a1c3-48f6-30f3-08d96c5ed1fc X-MS-Exchange-CrossTenant-originalarrivaltime: 31 Aug 2021 09:07:55.4337 (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: 9wV0ACUjOBrACcX2MYuzxlrq2i4FxJ27eYfrkwrvyOdyn28I2nf4MuTlR7/0PgZKd/qK6GQe3INQmfV25Nm/rg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB7374 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, Aug 31, 2021 at 08:59:57AM +0000, Xiaoliang Yang wrote: > > I think in previous versions you were automatically installing a static= MAC table > > entry when one was not present (either it was absent, or the entry was > > dynamically learned). Why did that change? >=20 > The PSFP gate and police action are set on ingress port, and " > tc-filter" has no parameter to set the forward port for the filtered > stream. And I also think that adding a FDB mac entry in tc-filter > command is not good. Fair enough, but if that's what you want, we'll need to think a lot harder about how this needs to be modeled. Would you not have to protect against a 'bridge fdb del' erasing your MAC table entry after you've set up the TSN stream on it? Right now, DSA does not even call the driver's .port_fdb_del method from atomic context, just from deferred work context. So even if you wanted to complain and say "cannot remove FDB entry until SFID stops pointing at it", that would not be possible with today's code structure. And what would you do if the bridge wants to delete the FDB entry irrevocably, like when the user wants to delete the bridge in its entirety? You would still remain with filters in tc which are not backed by any MAC table entry. Hmm.. Either the TSN standards for PSFP and FRER are meant to be implemented within the bridge driver itself, and not as part of tc, or the Microchip implementation is very weird for wiring them into the bridge MAC table. Microchip people, any comments?=