From patchwork Fri Nov 5 20:53:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Machnikowski, Maciej" X-Patchwork-Id: 12606027 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58001C433F5 for ; Fri, 5 Nov 2021 21:08:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 315BC60FC3 for ; Fri, 5 Nov 2021 21:08:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233365AbhKEVLP (ORCPT ); Fri, 5 Nov 2021 17:11:15 -0400 Received: from mga06.intel.com ([134.134.136.31]:26186 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230310AbhKEVLP (ORCPT ); Fri, 5 Nov 2021 17:11:15 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10159"; a="292815845" X-IronPort-AV: E=Sophos;i="5.87,212,1631602800"; d="scan'208";a="292815845" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Nov 2021 14:08:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,212,1631602800"; d="scan'208";a="450720615" Received: from unknown (HELO localhost.igk.intel.com) ([10.102.22.231]) by orsmga006.jf.intel.com with ESMTP; 05 Nov 2021 14:08:30 -0700 From: Maciej Machnikowski To: maciej.machnikowski@intel.com, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org Cc: richardcochran@gmail.com, abyagowi@fb.com, anthony.l.nguyen@intel.com, davem@davemloft.net, kuba@kernel.org, linux-kselftest@vger.kernel.org, idosch@idosch.org, mkubecek@suse.cz, saeed@kernel.org, michael.chan@broadcom.com Subject: [PATCH v2 net-next 0/6] Add RTNL interface for SyncE Date: Fri, 5 Nov 2021 21:53:25 +0100 Message-Id: <20211105205331.2024623-1-maciej.machnikowski@intel.com> X-Mailer: git-send-email 2.26.3 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Synchronous Ethernet networks use a physical layer clock to syntonize the frequency across different network elements. Basic SyncE node defined in the ITU-T G.8264 consist of an Ethernet Equipment Clock (EEC) and have the ability to recover synchronization from the synchronization inputs - either traffic interfaces or external frequency sources. The EEC can synchronize its frequency (syntonize) to any of those sources. It is also able to select synchronization source through priority tables and synchronization status messaging. It also provides neccessary filtering and holdover capabilities This patch series introduces basic interface for reading the Ethernet Equipment Clock (EEC) state on a SyncE capable device. This state gives information about the source of the syntonization signal (ether my port, or any external one) and the state of EEC. This interface is required\ to implement Synchronization Status Messaging on upper layers. v2: - improved documentation - fixed kdoc warning RFC history: v2: - removed whitespace changes - fix issues reported by test robot v3: - Changed naming from SyncE to EEC - Clarify cover letter and commit message for patch 1 v4: - Removed sync_source and pin_idx info - Changed one structure to attributes - Added EEC_SRC_PORT flag to indicate that the EEC is synchronized to the recovered clock of a port that returns the state v5: - add EEC source as an optiona attribute - implement support for recovered clocks - align states returned by EEC to ITU-T G.781 v6: - fix EEC clock state reporting - add documentation - fix descriptions in code comments Maciej Machnikowski (6): ice: add support detecting features based on netlist rtnetlink: Add new RTM_GETEECSTATE message to get SyncE status ice: add support for reading SyncE DPLL state rtnetlink: Add support for SyncE recovered clock configuration ice: add support for SyncE recovered clocks docs: net: Add description of SyncE interfaces Documentation/networking/synce.rst | 117 ++++++++ drivers/net/ethernet/intel/ice/ice.h | 7 + .../net/ethernet/intel/ice/ice_adminq_cmd.h | 94 ++++++- drivers/net/ethernet/intel/ice/ice_common.c | 224 ++++++++++++++++ drivers/net/ethernet/intel/ice/ice_common.h | 20 +- drivers/net/ethernet/intel/ice/ice_devids.h | 3 + drivers/net/ethernet/intel/ice/ice_lib.c | 6 +- drivers/net/ethernet/intel/ice/ice_main.c | 137 ++++++++++ drivers/net/ethernet/intel/ice/ice_ptp.c | 34 +++ drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 49 ++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 22 ++ drivers/net/ethernet/intel/ice/ice_type.h | 1 + include/linux/netdevice.h | 33 +++ include/uapi/linux/if_link.h | 57 ++++ include/uapi/linux/rtnetlink.h | 10 + net/core/rtnetlink.c | 253 ++++++++++++++++++ security/selinux/nlmsgtab.c | 6 +- 17 files changed, 1069 insertions(+), 4 deletions(-) create mode 100644 Documentation/networking/synce.rst