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=-0.8 required=3.0 tests=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 A5940C4CECC for ; Mon, 27 Apr 2020 18:40:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 88F6B205C9 for ; Mon, 27 Apr 2020 18:40:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726574AbgD0Skw (ORCPT ); Mon, 27 Apr 2020 14:40:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45524 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726189AbgD0Skw (ORCPT ); Mon, 27 Apr 2020 14:40:52 -0400 Received: from shards.monkeyblade.net (shards.monkeyblade.net [IPv6:2620:137:e000::1:9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5D0FDC0610D5; Mon, 27 Apr 2020 11:40:52 -0700 (PDT) Received: from localhost (unknown [IPv6:2601:601:9f00:477::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 6C03F15D5536F; Mon, 27 Apr 2020 11:40:51 -0700 (PDT) Date: Mon, 27 Apr 2020 11:40:50 -0700 (PDT) Message-Id: <20200427.114050.2017715904275832358.davem@davemloft.net> To: horatiu.vultur@microchip.com Cc: nikolay@cumulusnetworks.com, jiri@resnulli.us, ivecera@redhat.com, kuba@kernel.org, roopa@cumulusnetworks.com, olteanv@gmail.com, andrew@lunn.ch, UNGLinuxDriver@microchip.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bridge@lists.linux-foundation.org Subject: Re: [PATCH net-next v4 00/11] net: bridge: mrp: Add support for Media Redundancy Protocol(MRP) From: David Miller In-Reply-To: <20200426132208.3232-1-horatiu.vultur@microchip.com> References: <20200426132208.3232-1-horatiu.vultur@microchip.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 27 Apr 2020 11:40:51 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Horatiu Vultur Date: Sun, 26 Apr 2020 15:21:57 +0200 > Media Redundancy Protocol is a data network protocol standardized by > International Electrotechnical Commission as IEC 62439-2. It allows rings of > Ethernet switches to overcome any single failure with recovery time faster than > STP. It is primarily used in Industrial Ethernet applications. > > Based on the previous RFC[1][2][3][4][5], and patches[6][7][8], the MRP state > machine and all the timers were moved to userspace, except for the timers used > to generate MRP Test frames. In this way the userspace doesn't know and should > not know if the HW or the kernel will generate the MRP Test frames. The > following changes were added to the bridge to support the MRP: > - the existing netlink interface was extended with MRP support, > - allow to detect when a MRP frame was received on a MRP ring port > - allow MRP instance to forward/terminate MRP frames > - generate MRP Test frames in case the HW doesn't have support for this > > To be able to offload MRP support to HW, the switchdev API was extend. ... Series applied, thank you.