From patchwork Wed Jan 27 20:52:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 12051015 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=-11.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 9AFA2C433E9 for ; Wed, 27 Jan 2021 20:55:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 43D2264D9F for ; Wed, 27 Jan 2021 20:55:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233600AbhA0UzS (ORCPT ); Wed, 27 Jan 2021 15:55:18 -0500 Received: from esa.microchip.iphmx.com ([68.232.154.123]:29881 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233543AbhA0UzQ (ORCPT ); Wed, 27 Jan 2021 15:55:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1611780915; x=1643316915; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=vm0CrJTo/kb0nUxUNkkuwbyYmWL4gU6mgVkXg9ndpHg=; b=RHuqJYokQEM+LXnKsJpQLdOKpb2j8w5tBRnjzx6TS0nZYwWCrei+syOP /TioV3HvtsoE2KGfJ6xW0wdK9/W7oSlsqy1rmWAOVggxyyezHEwpv52k1 gcFbbFYrkEHKq+suSbG1M60oYN3eBv0N9p21bFIFHtdavN8raaQYjaLwL M7t4mG7qg35wKQ64ccSE0aKozC4xlhyRqfF0NmKxGPk6btJhmiPZ7LQco S2G/7Ju69qadNj0FrGdpM1VlwDbCP+sZnGEjW9X9jIRQvv5Bi42Fvb4xi M5nf9CH66qg4xNJ+klMaTj9PEyNq61qGkcjJJxB4FSqnDjFmEs9/Y1sgZ g==; IronPort-SDR: IAvxKCBZPGmeA9e4rmrEgkpHvQKhvZb551K2uBe0KlwcyAhAiDb5iESmPTLml9Ls61ar5yhlJ9 varKrus5ZCJwiCpGhzcA4FcKACvibHzrGY8rSGoc7qh6ZGZ75EiF2cKdT1SFM7wdxFAklkXhQ1 EgGOmzX0giDiVKVoAJ8KIPyqNLvQKjQrXr51fsP36wC1VBJfIVvMExoRs7SAq0oMrNh0Oc9Je+ +e0paNW5biU83XNAkmyHBJ/WDvgCL5cQqWa2PFamf8K5PVp+pSleYLCcmCYH0UxbwVhCyzBdu/ Hs8= X-IronPort-AV: E=Sophos;i="5.79,380,1602572400"; d="scan'208";a="101667246" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 27 Jan 2021 13:53:59 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Wed, 27 Jan 2021 13:53:59 -0700 Received: from soft-dev3.localdomain (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.1979.3 via Frontend Transport; Wed, 27 Jan 2021 13:53:57 -0700 From: Horatiu Vultur To: , , , , , , , , , , CC: Horatiu Vultur Subject: [PATCH net-next v2 0/4] bridge: mrp: Extend br_mrp_switchdev_* Date: Wed, 27 Jan 2021 21:52:37 +0100 Message-ID: <20210127205241.2864728-1-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org This patch series extends MRP switchdev to allow the SW to have a better understanding if the HW can implement the MRP functionality or it needs to help the HW to run it. There are 3 cases: - when HW can't implement at all the functionality. - when HW can implement a part of the functionality but needs the SW implement the rest. For example if it can't detect when it stops receiving MRP Test frames but it can copy the MRP frames to CPU to allow the SW to determine this. Another example is generating the MRP Test frames. If HW can't do that then the SW is used as backup. - when HW can implement completely the functionality. So, initially the SW tries to offload the entire functionality in HW, if that fails it tries offload parts of the functionality in HW and use the SW as helper and if also this fails then MRP can't run on this HW. v2: - fix typos in comments and in commit messages - remove some of the comments - move repeated code in helper function - fix issue when deleting a node when sw_backup was true Horatiu Vultur (4): switchdev: mrp: Extend ring_role_mrp and in_role_mrp bridge: mrp: Add 'enum br_mrp_hw_support' bridge: mrp: Extend br_mrp_switchdev to detect better the errors bridge: mrp: Update br_mrp to use new return values of br_mrp_switchdev include/net/switchdev.h | 2 + net/bridge/br_mrp.c | 43 +++++---- net/bridge/br_mrp_switchdev.c | 171 +++++++++++++++++++++------------- net/bridge/br_private_mrp.h | 38 ++++++-- 4 files changed, 161 insertions(+), 93 deletions(-)