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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5EC10C433F5 for ; Thu, 30 Dec 2021 23:07:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242333AbhL3XHu (ORCPT ); Thu, 30 Dec 2021 18:07:50 -0500 Received: from mail-bn8nam12on2137.outbound.protection.outlook.com ([40.107.237.137]:2784 "EHLO NAM12-BN8-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229608AbhL3XHt (ORCPT ); Thu, 30 Dec 2021 18:07:49 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=jPG9jktTHAl0UTb4fEhWSGEb4VYxa4y0ArbbsSLTzKggPdnj/1QQ/sUTYwzELkKnKsT5FFgEHEHvnvwTNGi4Iyb8LcAuiUd0P8zXCfs0GjO9pKIVv5wvloBN9j3EV4KW+p6Na6gfwl+ZeapvM4yAih7H4ESxLz+sJKU7YSVigFE63HoCVSI5V7plWcUQUGkxHJEam72Yb901MzI8TAq3yW36M1e+/3hjCpsBqbICPe4PK+ihyzqFhpJclqVFuBuP1MHFMKUIX/VOljhz1/JqRjW+kxhHoGKSPJHr4isQnj1T7zURCl/r9awAzCQOgNyhrwqk0r6fVurcGQX8QKiGZw== 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=9Yjv8HENrW/19ANconkhz0gtPdL2ygCw9V9b60Hg3/0=; b=jlnt1e4y+LVSDNMnfUdjLB9cOKt8ROYG7YuyPUtLKIavLUlZgyrFTt5iIwHdaOg2UFWiOC99KSyTk+RmWlsHCXt0pvM5QtgzJSwOxZSXNiR8xVf0k5An1gLHlhZSHaP/JLEHZZTmr1YRJ88hBn7wvUliLcqDJBHW0OaKc07vnZKWN+iXGGR7yeI/1nRmbQ7hqe3XOStLRD2MzdXjHrhqS/031hado6JT0NEOyeSNOdOZH4Usep2hTRjV8Nj06jvwSkYfrLMCOm/uAbSPM8UNgZtG3kHP0R/4bOTJFwLElQ+8JfE8yTl5+8ASfFVKbIEIsmjWK5yedE1DKzWmuRA7UA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=in-advantage.com; dmarc=pass action=none header.from=in-advantage.com; dkim=pass header.d=in-advantage.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inadvantage.onmicrosoft.com; s=selector2-inadvantage-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=9Yjv8HENrW/19ANconkhz0gtPdL2ygCw9V9b60Hg3/0=; b=fxr1XvanzOZmYALaT30PNlrrKi+1k3n5b7o0oACvF/bhdwmXzaMb/OkON16sKpG2e4d1Bfp+w2L/5xD9ikAqBSjGSW/vJadSCo8gXv+zgTbXm1uVC4lBjpvBWPd0eczGq6WNfT0qHBEQhodJUKnVbp3c8GAF8uIqjpPKR0d/kbg= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=in-advantage.com; Received: from MWHPR1001MB2351.namprd10.prod.outlook.com (2603:10b6:301:35::37) by CO1PR10MB4451.namprd10.prod.outlook.com (2603:10b6:303:96::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4844.13; Thu, 30 Dec 2021 23:07:47 +0000 Received: from MWHPR1001MB2351.namprd10.prod.outlook.com ([fe80::2d52:2a96:7e6c:460f]) by MWHPR1001MB2351.namprd10.prod.outlook.com ([fe80::2d52:2a96:7e6c:460f%4]) with mapi id 15.20.4844.014; Thu, 30 Dec 2021 23:07:46 +0000 Date: Thu, 30 Dec 2021 15:07:40 -0800 From: Colin Foster To: netdev@vger.kernel.org Cc: Vladimir Oltean , Alexandre Belloni , Horatiu Vultur Subject: packets trickling out of STP-blocked ports Message-ID: <20211230230740.GA1510894@euler> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-ClientProxiedBy: CO1PR15CA0094.namprd15.prod.outlook.com (2603:10b6:101:21::14) To MWHPR1001MB2351.namprd10.prod.outlook.com (2603:10b6:301:35::37) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 5b6a82bb-eee5-4272-4834-08d9cbe93144 X-MS-TrafficTypeDiagnostic: CO1PR10MB4451:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:10000; 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:MWHPR1001MB2351.namprd10.prod.outlook.com;PTR:;CAT:NONE;SFS:(7916004)(366004)(376002)(42606007)(136003)(346002)(396003)(39830400003)(66946007)(508600001)(26005)(15650500001)(52116002)(186003)(6512007)(33716001)(1076003)(66556008)(9686003)(316002)(66476007)(33656002)(6486002)(44832011)(38350700002)(4326008)(86362001)(40140700001)(6666004)(54906003)(83380400001)(38100700002)(6916009)(5660300002)(8676002)(66574015)(2906002)(6506007)(8936002);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?B7j13LT9JcbJRwHBZrp2uIizamlFss/MYIajPn/Phf6C061U2ZTsyd3Z6jRT?= =?us-ascii?Q?hY5deZyXJLJQh2q+guANfFysim/Dlh1k6VN0EqU4T1ceH4B7IhbJ1rM4C/oD?= =?us-ascii?Q?2ZoS7XInbfNLzIwl+x+nikoTGR6gINNFSmHE9OAQpnNWvlsGTLmR+pWxZYYa?= =?us-ascii?Q?JXXYyBSjHb6gaBZ3xECFmKkSy3sf4fNIWeSb/GGHgSxRVp3wYEP/ffYXy2P3?= =?us-ascii?Q?6lVEIzZ91SjnxWVnG9vsa30S3EyWj6x8W69Jc48uBI0L3tr7l4CLNwSKFiL6?= =?us-ascii?Q?pe2iALFLbAH3ovAkbwgTmlg/qd87dYIUwpU4QMxnCVNsp4xLft90Oy8Vzu9u?= =?us-ascii?Q?KF1/5JaxSRG3Qb/VYMoAtbDHBI/Ev4NQCYwZm7p0qIf/PRNmjgwLDuqvynkT?= =?us-ascii?Q?uQbuz9eOd6pw39IHnXhq1Z2QPAP5ch4eFH3jcZKMQ4ZCTWrNPrChdUDByON6?= =?us-ascii?Q?E9NENMm8tVrP+Fv/HvjT0XGhq75RqNOQST+7yauVSEh/U3dsPo8vHrC4p4V7?= =?us-ascii?Q?Ej9hZvK1r+b1pGGdywCei5sjXXIPh8SLNixHNbdyCP+RBpoQhLua03cE0YYy?= =?us-ascii?Q?pOjQUXb5qMXTzEDDBuTJiMPvexOLFNpaeen+Ze7y7COW5G8QC2XUu1fbynro?= =?us-ascii?Q?jUbZfjPqvkO1HLEqstE5KbQyC24xW5l+AnXQl3NnnT5iSiIrO9dqHVNmtEo2?= =?us-ascii?Q?80qrp4Hw1FGgMBynmv3gBVdHzTuQmAXCIZ1GomYdussmASOiwvb1Qx/7if5a?= =?us-ascii?Q?BYOFg2mKSaj0hea6Wjgy2Jz7FZiANvDPixKdxyTiRoM/aTEdsh1yTehyIU+Z?= =?us-ascii?Q?X8Gz5ixrohswSBx9tlBjErct63zYpVPGKB3ipo8lgzvMns4A0JnMkYOVKMJ+?= =?us-ascii?Q?MGnQeaun2TqwJKrmOD0QEDfaX0AzoBWoqFjJwGIqKpSx2cxiz9onZZAYp8QH?= =?us-ascii?Q?Cvu7Y4XmeVT041pKQzk1MWXEeQawnZt7x5qOw647OLwyi5ndG4r2h3rIPcaL?= =?us-ascii?Q?W7J/9+q4Nww134Fd8MN0XEzEsZoc4EjdUMWHeB+qTNWbsEG6hVr+Jof8VI26?= =?us-ascii?Q?MuZY9zPsC+H+rMhKi1mAFtFD72STBC/LwC4T0JVjG/sNy4w9gm1Ye6Boumdr?= =?us-ascii?Q?qcEhSclUIz0qhVRbcJoyk4EH7sOwvFrrXEDtDEx+Rg6tybosWvugvGGacr77?= =?us-ascii?Q?YXDLBLFAfpGsZHlGTuhAOnEylM9G0fm6o0rjayN/IaD34wIuVUAXSgBay7Tn?= =?us-ascii?Q?cL+WEPhO/7256afndYmFPbynJfp2XeTMNik4GY4E8aBAWGNKmURGEf5uUKX6?= =?us-ascii?Q?0wncLJ/1I4sV1tlfWPMM/vD1/v1uAZaY/bxZr6SSWP3E1+HP6IVqLJwxnafA?= =?us-ascii?Q?0HHnc5KFS2+PXbzwqkdWddq9qzPHy1ouk18D//PVaGbkMdgyetNuPPgfvNZm?= =?us-ascii?Q?LcYZ60fBhatNH89RW3GK/nSV4uUHgl9qhOb/csXFatRjDh8oyvmPQiiBxvMf?= =?us-ascii?Q?gFcbxEk7/0V+O1/IzgXVxtszoBDmlHwjycjpeCcq/8+/qGtshyuSD/rjN+VS?= =?us-ascii?Q?s3m8ZYmpItC+m2K1wmbc+Dxd95oO3Q/7ebTIyyI/a/9pbC0kDb0eEyKuzjDa?= =?us-ascii?Q?O23B9b3AolB37HH5QLNWXhOZ8sbonu94e8ynp/phnqEBzclWOpQ9/vtmP9vt?= =?us-ascii?Q?LN+DMQ=3D=3D?= X-OriginatorOrg: in-advantage.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5b6a82bb-eee5-4272-4834-08d9cbe93144 X-MS-Exchange-CrossTenant-AuthSource: MWHPR1001MB2351.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Dec 2021 23:07:46.7450 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 48e842ca-fbd8-4633-a79d-0c955a7d3aae X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ZTgdoPAylXL2yhwMC4kRXbEY6npXaswLRgkA+LVv1hB6+ioW6jkWjAqsgm5dEJH45M+cSdV2GuzI/KPA3YzQI7DPGthJ0APrmVr+8BN0YlI= X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4451 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi all, I'm not sure who all to include in this email, but I'm starting with this list to start. Probably obvious to those in this email list, I'm testing a VSC7512 dev board controlled via SPI. The patches are still out-of-tree, but I figured I'll report these findings, since they seem real. My setup is port 0 of the 7512 is tied to a Beaglebone Black. Port 1 is tied to my development PC. Ports 2 and 3 are tied together to test STP. I run the commands: ip link set eth0 up ip link set swp[1-3] up ip link add name br0 type bridge stp_state 1 ip link set dev swp[1-3] master br0 ip addr add 10.100.3.1/16 dev br0 ip link set dev br0 up After running this, the STP blocks swp3, and swp1/2 are forwarding. Periodically I see messages saying that swp2 is receiving packets with own address as source address. I can confirm that via ethtool that TX packets are increasing on swp3. I believe I captured the event via tshark. A 4 minute capture showed three non-STP packets on swp2. All three of these packets are ICMPv6 Router Solicitation packets. I would expect no packets at all to egress swp3. Is this an issue that is unique to me and my in-development configuration? Or is this an issue with all Ocelot / Felix devices? If this is an Ocelot thing, I can try to come up with a different test setup to capture more data... printing the packet when it is received, capturing the traffic externally, capturing eth0 traffic to see if it is coming from the kernel or being hardware-forwarded... (side note - if there's a place where a parser for Ocelot NPI traffic is hidden, that might eventually save me a lot of debugging in Lua) An idea of how frequently this happens - my system has been currently up for 3700 seconds. Eight "own address as source address" events have happened at 66, 96, 156, 279, 509, 996, 1897, and 3699 seconds. Thanks, Colin Foster