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 35603C54EBD for ; Fri, 6 Jan 2023 18:44:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235770AbjAFSoL (ORCPT ); Fri, 6 Jan 2023 13:44:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35802 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230308AbjAFSoH (ORCPT ); Fri, 6 Jan 2023 13:44:07 -0500 Received: from mail-ej1-x630.google.com (mail-ej1-x630.google.com [IPv6:2a00:1450:4864:20::630]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E7D267DE0C; Fri, 6 Jan 2023 10:44:03 -0800 (PST) Received: by mail-ej1-x630.google.com with SMTP id kw15so5357813ejc.10; Fri, 06 Jan 2023 10:44:03 -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=Cfpx3g9v5AR6G8kG2cS5fJ9THDFlF/zwp2XZ7O1aB6Y=; b=hWWJnFBRR2/Gmb8I8D+EnJba19lmiM337s1QXVwn751WfEk/3RIbshgvlnnE5HmT2e ZmljFtLNPf7hMf3hUVSwYqU3iCPX+PC/l+nLfyVSXgOjvE5qfx1FhFO+bAniJ6OnfEb/ 9whdvL5UlfQevUiVuqSxG2m90McXN3MY8fskJZNVlSUBgplLeQIB3X7kqP74+awKAcEt giEPPLs5SCPfUDiVNMPLwp+CUz/E2ghbBVyaYvDJ6ojfU4N38dHvRF3RpPANEVkWHlWR Ge0F/RudkIQtHUA4QnDWPenVU3WgnFnfd6hyDsmqt7gSIh/NdRHEm1Hi+UaJ6IVBhLd6 DCNw== 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=Cfpx3g9v5AR6G8kG2cS5fJ9THDFlF/zwp2XZ7O1aB6Y=; b=ZrcsVSfubq1FeidKMLcHSmXsTQehpkGc9cj/PaV5QM4uY0BbTEjQFpzmrESdj5Mxjj HrfgqtS4AkQCimL0sCUQKki+STi8dNbjqFSJJEBZqVHv4maue0VcrJVGlVIhqG9pBIsd ypuII9OtElIuPqxa84KOtcKEgooJbsDN0/67gV1SvkwRQbZphonay3pmfsEQ36iIOqF7 f/8WW8E/immf3Lxq44L1rDCeMCCZDmb6GYM7kNvbtiyb9a9FmUMOTcOJyhtgnBcKMSpy wk71rrCK9T88fU40uS/oJNo4bQSEZ7PCersDeJXZyxKPQGgJTO5HVn3qBNmDpUwil5/3 DKjQ== X-Gm-Message-State: AFqh2kpaQBvbFAGnMxwKWSTam4o248CZfVwx+IoMrr9l1xJuP/q4eFRf cYeVpPdeneObPP9cfhKJi5c= X-Google-Smtp-Source: AMrXdXvCWfB13TqTXXHwfWRrvS30ChgUx9hcD829visB8YXozDP3X7bTQtdMqbnvSIoi17gDedUmmA== X-Received: by 2002:a17:906:d96c:b0:7c1:7cc2:1f1e with SMTP id rp12-20020a170906d96c00b007c17cc21f1emr54899363ejb.35.1673030642386; Fri, 06 Jan 2023 10:44:02 -0800 (PST) Received: from gvm01 ([91.199.164.40]) by smtp.gmail.com with ESMTPSA id g17-20020a17090670d100b007bb86679a32sm634050ejk.217.2023.01.06.10.44.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Jan 2023 10:44:01 -0800 (PST) Date: Fri, 6 Jan 2023 19:43:56 +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 Subject: [PATCH v2 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: linux-kernel@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 | 173 ++++++++++++ drivers/net/phy/phy-c45.c | 183 ++++++++++++ drivers/net/phy/phy-core.c | 5 +- drivers/net/phy/phy.c | 174 ++++++++++++ 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, 1207 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