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[2620:137:e000::1:20]) by mx.google.com with ESMTP id b15-20020a056a000a8f00b0056618176fd4si16527262pfl.148.2022.12.21.01.49.48; Wed, 21 Dec 2022 01:50:01 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@microchip.com header.s=mchp header.b=SENpNc6s; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=microchip.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234616AbiLUJqn (ORCPT + 99 others); Wed, 21 Dec 2022 04:46:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234368AbiLUJqe (ORCPT ); Wed, 21 Dec 2022 04:46:34 -0500 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 486A8B95; Wed, 21 Dec 2022 01:46:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1671615991; x=1703151991; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=QvgZM0AHu9miFZUHa20cBkHJ3002cVC9Isa1tj5BIi8=; b=SENpNc6sZtzuZRj0Z+ukAT5bRnN6kWVT3hESFvoMVLJbpqipHQvIUHhH XIV6wCrIYe71La7h8+xA8FrAOnY0A29RI2CaUnQqOir+7XQkAxYW0RbES HZ1tfiKYUFKmPfOZdmQW2EWTGe/brGPR6UEZNlW/xFgKwBDIHzydYikxH ZPqKZZsJdoVBNVMeMmxZEaS3zv7JFC+a7ZijI01VJjvJ1VHzmBBqrjjlf kyCeKzZsnV01CgwAPNgKKx0wBjA6F7IufsZj6sKXx6QxOR5BejfuCXLwj cFOQDTYA18FenvlnNQkffH1MR2DvuP6FSH9/p48ghXxyRpSHiz7IOWUIV Q==; X-IronPort-AV: E=Sophos;i="5.96,262,1665471600"; d="scan'208";a="129151173" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 21 Dec 2022 02:46:30 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16; Wed, 21 Dec 2022 02:46:29 -0700 Received: from CHE-LT-I17769U.microchip.com (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.16 via Frontend Transport; Wed, 21 Dec 2022 02:46:23 -0700 From: Arun Ramadoss To: , CC: , , , , , , , , , , , , , , Subject: [RFC Patch net-next v5 00/13] net: dsa: microchip: add PTP support for KSZ9563/KSZ8563 and LAN937x Date: Wed, 21 Dec 2022 15:15:59 +0530 Message-ID: <20221221094612.22372-1-arun.ramadoss@microchip.com> X-Mailer: git-send-email 2.36.1 MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1752816629982513070?= X-GMAIL-MSGID: =?utf-8?q?1752816629982513070?= KSZ9563/KSZ8563 and LAN937x switch are capable for supporting IEEE 1588 PTP protocol. LAN937x has the same PTP register set similar to KSZ9563, hence the implementation has been made common for the KSZ switches. KSZ9563 does not support two step timestamping but LAN937x supports both. Tested the 1step & 2step p2p timestamping in LAN937x and p2p1step timestamping in KSZ9563. This patch series is based on the Christian Eggers PTP support for KSZ9563. Applied the Christian patch and updated as per the latest refactoring of KSZ series code. The features added on top are PTP packet Interrupt implementation based on nested handler, LAN937x two step timestamping and programmable per_out pins. Link: https://www.spinics.net/lists/netdev/msg705531.html Patch v4 -> v5 - Replaced irq_domain_add_simple with irq_doamin_add_linear - Used the helper diff_by_scaled_ppm() for adjfine. Patch v3 -> v4 - removed IRQF_TRIGGER_FALLING from the request_threaded_irq of ptp msg - addressed review comments on patch 10 periodic output - added sign off in patch 6 & 9 - reverted to set PTP_1STEP bit for lan937x which is missed during v3 regression Patch v2-> v3 - used port_rxtstamp for reconstructing the absolute timestamp instead of tagger function pointer. - Reverted to setting of 802.1As bit. Patch v1 -> v2 - GPIO perout enable bit is different for LAN937x and KSZ9x. Added new patch for configuring LAN937x programmable pins. - PTP enabled in hardware based on both tx and rx timestamping of all the user ports. - Replaced setting of 802.1AS bit with P2P bit in PTP_MSG_CONF1 register. RFC v2 -> Patch v1 - Changed the patch author based on past patch submission - Changed the commit message prefix as net: dsa: microchip: ptp Individual patch changes are listed in correspondig commits. RFC v1 -> v2 - Added the p2p1step timestamping and conditional execution of 2 step for LAN937x only. - Added the periodic output support Arun Ramadoss (5): net: dsa: microchip: ptp: add 4 bytes in tail tag when ptp enabled net: dsa: microchip: ptp: enable interrupt for timestamping net: dsa: microchip: ptp: add support for perout programmable pins net: dsa: microchip: ptp: lan937x: add 2 step timestamping net: dsa: microchip: ptp: lan937x: Enable periodic output in LED pins Christian Eggers (8): net: dsa: microchip: ptp: add the posix clock support net: dsa: microchip: ptp: Initial hardware time stamping support net: dsa: microchip: ptp: manipulating absolute time using ptp hw clock net: ptp: add helper for one-step P2P clocks net: dsa: microchip: ptp: add packet reception timestamping net: dsa: microchip: ptp: add packet transmission timestamping net: dsa: microchip: ptp: move pdelay_rsp correction field to tail tag net: dsa: microchip: ptp: add periodic output signal MAINTAINERS | 1 + drivers/net/dsa/microchip/Kconfig | 11 + drivers/net/dsa/microchip/Makefile | 5 + drivers/net/dsa/microchip/ksz_common.c | 44 +- drivers/net/dsa/microchip/ksz_common.h | 48 + drivers/net/dsa/microchip/ksz_ptp.c | 1191 +++++++++++++++++++++++ drivers/net/dsa/microchip/ksz_ptp.h | 86 ++ drivers/net/dsa/microchip/ksz_ptp_reg.h | 142 +++ include/linux/dsa/ksz_common.h | 53 + include/linux/ptp_classify.h | 71 ++ net/dsa/tag_ksz.c | 213 +++- 11 files changed, 1847 insertions(+), 18 deletions(-) create mode 100644 drivers/net/dsa/microchip/ksz_ptp.c create mode 100644 drivers/net/dsa/microchip/ksz_ptp.h create mode 100644 drivers/net/dsa/microchip/ksz_ptp_reg.h create mode 100644 include/linux/dsa/ksz_common.h base-commit: 9054b41c4e1b5725e573c13166cee56bf7034bbd