From patchwork Wed Dec 1 18:02:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Machnikowski, Maciej" X-Patchwork-Id: 519983 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 E1DDCC433F5 for ; Wed, 1 Dec 2021 18:17:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244283AbhLASU2 (ORCPT ); Wed, 1 Dec 2021 13:20:28 -0500 Received: from mga04.intel.com ([192.55.52.120]:40321 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243657AbhLASU2 (ORCPT ); Wed, 1 Dec 2021 13:20:28 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10185"; a="235250451" X-IronPort-AV: E=Sophos;i="5.87,279,1631602800"; d="scan'208";a="235250451" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Dec 2021 10:17:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,279,1631602800"; d="scan'208";a="460124590" Received: from unknown (HELO localhost.igk.intel.com) ([10.102.22.231]) by orsmga006.jf.intel.com with ESMTP; 01 Dec 2021 10:17:02 -0800 From: Maciej Machnikowski To: maciej.machnikowski@intel.com, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, arkadiusz.kubalewski@intel.com 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, petrm@nvidia.com Subject: [PATCH v4 net-next 0/4] Add ethtool interface for SyncE Date: Wed, 1 Dec 2021 19:02:04 +0100 Message-Id: <20211201180208.640179-1-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 and configuring recover clocks on a SyncE capable device v4: - Dropped EEC_STATE reporting (TBD: DPLL subsystem) - moved recovered clock configuration to ethtool netlink v3: - remove RTM_GETRCLKRANGE - return state of all possible pins in the RTM_GETRCLKSTATE - clarify documentation 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 (4): ice: add support detecting features based on netlist ethtool: Add ability to configure recovered clock for SyncE feature ice: add support for monitoring SyncE DPLL state ice: add support for SyncE recovered clocks Documentation/networking/ethtool-netlink.rst | 67 +++++ drivers/net/ethernet/intel/ice/ice.h | 7 + .../net/ethernet/intel/ice/ice_adminq_cmd.h | 70 ++++- 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_ethtool.c | 97 +++++++ drivers/net/ethernet/intel/ice/ice_lib.c | 6 +- drivers/net/ethernet/intel/ice/ice_ptp.c | 35 +++ drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 49 ++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 36 +++ drivers/net/ethernet/intel/ice/ice_type.h | 1 + include/linux/ethtool.h | 9 + include/uapi/linux/ethtool_netlink.h | 21 ++ net/ethtool/Makefile | 3 +- net/ethtool/netlink.c | 20 ++ net/ethtool/netlink.h | 4 + net/ethtool/synce.c | 267 ++++++++++++++++++ 18 files changed, 935 insertions(+), 4 deletions(-) create mode 100644 net/ethtool/synce.c