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 A2C26C61DB3 for ; Mon, 9 Jan 2023 17:00:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237383AbjAIRAC (ORCPT ); Mon, 9 Jan 2023 12:00:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53572 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237358AbjAIQ7d (ORCPT ); Mon, 9 Jan 2023 11:59:33 -0500 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2050F3C3BD; Mon, 9 Jan 2023 08:59:30 -0800 (PST) Received: by mail-ed1-x536.google.com with SMTP id x10so10575227edd.10; Mon, 09 Jan 2023 08:59:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :from:to:cc:subject:date:message-id:reply-to; bh=lzYeE0k+RbKjBKSNKa4zV/0U3B6MFOwQNa0CRLnETjE=; b=VAflwCUjBRcz6tGtZhzENyN2lOh8MNjUWoYII2o0JVHyxvkNZHL1q/Qp0u6qPjkL66 71Ob7s36bXfS4t+l3nQ1TCnMTS00Tj+GgILHRctRji3Hp5eBcn25FJWCsnDG0oMJjwjr H4nsSLMruZp8s2WWae+pkWVnDDeinRavePt7cie+GHMucXc78Uu7Q8Jsi4nQySxW76Xe n9lPTa8VPkWU6y208GTCgnDaUnd1XEU/NFKYLn5EWv6VCVpfNfCrIrUiIS7v/4AJJ+XE JfYHvSQXE4OwAhWGsMP0nBUbinW7vbx2iJycm5CsFrwYU6JHvgBGK+9dLg8iLvDCfMxX HV4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=lzYeE0k+RbKjBKSNKa4zV/0U3B6MFOwQNa0CRLnETjE=; b=qPQwKOUuIM1sTvCBmyZz6+QMUNdrzngqsKF/fdu9UFtlvYqanwHhUg1vktU1L1+yIR 02YlZ1l5vEWsGHgzALxonTOGWEoK3MljosV8s/JaawP+Pbq8eo6HxnYBFrkevtWOabE5 VEexbCRu1gEll5xTHCMbch5ZCrHVpZmJ8mdZIqTxPbAPZ3UF6KM7Ur8mzcS8kKbGZ8Zb cHWacJPcAMHrOaA7+UcIe/oPrXjkAQpPed3H4CgMBjGLT2tAc+7zFMXGchK4/8TaZpxL fWQwhAJ0dsFUdrNZgJ7JSK2ypTY3SMPonoAGZpD6imrFLQUhXlWiGbUxOPpzUSh2MZT5 CE1A== X-Gm-Message-State: AFqh2kpLTsXR5WAXvNcHG2w5Rds2tXIjDd0MaTptq5pBoMHgA/ebMB6f FMJ6Fb7Jb5K2/pw5NbfM4fU= X-Google-Smtp-Source: AMrXdXsCHTFqzmTA1/rruTMbQxh2xwP+UC8572LAdBqDnhDQT4ju5z0690MC/mE1PtRvRCltFqhg1g== X-Received: by 2002:a05:6402:1caa:b0:46c:72fb:3810 with SMTP id cz10-20020a0564021caa00b0046c72fb3810mr64929745edb.41.1673283568604; Mon, 09 Jan 2023 08:59:28 -0800 (PST) Received: from gvm01 ([91.199.164.40]) by smtp.gmail.com with ESMTPSA id e15-20020a056402104f00b004918b6b5e30sm3887564edu.15.2023.01.09.08.59.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Jan 2023 08:59:28 -0800 (PST) Date: Mon, 9 Jan 2023 17:59:25 +0100 From: Piergiorgio Beruto To: Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Oleksij Rempel , mailhol.vincent@wanadoo.fr, sudheer.mogilappagari@intel.com, sbhatta@marvell.com, linux-doc@vger.kernel.org, wangjie125@huawei.com, corbet@lwn.net, lkp@intel.com, gal@nvidia.com, gustavoars@kernel.org, bagasdotme@gmail.com Subject: [PATCH v4 net-next 0/5] add PLCA RS support and onsemi NCN26000 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This patchset adds support for getting/setting the Physical Layer Collision Avoidace (PLCA) Reconciliation Sublayer (RS) configuration and status on Ethernet PHYs that supports it. PLCA is a feature that provides improved media-access performance in terms of throughput, latency and fairness for multi-drop (P2MP) half-duplex PHYs. PLCA is defined in Clause 148 of the IEEE802.3 specifications as amended by 802.3cg-2019. Currently, PLCA is supported by the 10BASE-T1S single-pair Ethernet PHY defined in the same standard and related amendments. The OPEN Alliance SIG TC14 defines additional specifications for the 10BASE-T1S PHY, including a standard register map for PHYs that embeds the PLCA RS (see PLCA management registers at https://www.opensig.org/about/specifications/). The changes proposed herein add the appropriate ethtool netlink interface for configuring the PLCA RS on PHYs that supports it. A separate patchset further modifies the ethtool userspace program to show and modify the configuration/status of the PLCA RS. Additionally, this patchset adds support for the onsemi NCN26000 Industrial Ethernet 10BASE-T1S PHY that uses the newly added PLCA infrastructure. Piergiorgio Beruto (5): net/ethtool: add netlink interface for the PLCA RS drivers/net/phy: add the link modes for the 10BASE-T1S Ethernet PHY drivers/net/phy: add connection between ethtool and phylib for PLCA drivers/net/phy: add helpers to get/set PLCA configuration drivers/net/phy: add driver for the onsemi NCN26000 10BASE-T1S PHY Documentation/networking/ethtool-netlink.rst | 138 +++++++++ MAINTAINERS | 14 + drivers/net/phy/Kconfig | 7 + drivers/net/phy/Makefile | 1 + drivers/net/phy/mdio-open-alliance.h | 46 +++ drivers/net/phy/ncn26000.c | 171 ++++++++++++ drivers/net/phy/phy-c45.c | 193 +++++++++++++ drivers/net/phy/phy-core.c | 5 +- drivers/net/phy/phy.c | 192 +++++++++++++ drivers/net/phy/phy_device.c | 17 ++ drivers/net/phy/phylink.c | 6 +- include/linux/ethtool.h | 12 + include/linux/phy.h | 84 ++++++ include/uapi/linux/ethtool.h | 3 + include/uapi/linux/ethtool_netlink.h | 25 ++ net/ethtool/Makefile | 2 +- net/ethtool/common.c | 8 + net/ethtool/netlink.c | 29 ++ net/ethtool/netlink.h | 6 + net/ethtool/plca.c | 277 +++++++++++++++++++ 20 files changed, 1233 insertions(+), 3 deletions(-) create mode 100644 drivers/net/phy/mdio-open-alliance.h create mode 100644 drivers/net/phy/ncn26000.c create mode 100644 net/ethtool/plca.c -- 2.37.4