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 mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8DCF2CD342C for ; Thu, 7 May 2026 04:47:45 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 6B516402F1; Thu, 7 May 2026 06:47:44 +0200 (CEST) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by mails.dpdk.org (Postfix) with ESMTP id 5788E40265 for ; Thu, 7 May 2026 06:47:42 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1778129263; x=1809665263; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=kof9tYU7WtZ7fDaGulApaq4Qx++edYS3KqWNnrrTkUQ=; b=k9+a31vL8TuX2zr8PipPdEO7eB+1IO+m3EojAcURDPy5rRVVa8AIJHmK BlXq78ZmSApX4TkliWBItrjXp3gTw+F1+m1G6uRmZVKJcqFZm/C8H+N3H 6UbujaKQ01/TlRYmL/dHM5ZdHcJHKorbqVjBi97JTQ8tRBs3BVZSxL+u+ mnfQQpe1wStIp783JkPoEqcIOEmpvTZuMl/MvUcC8ChnuS6diCTiNQRPW KrXYOGy8ICzg5/y4jREeDm66eBU6KRSyDpNC/Xc5ukNbbTZywRU4sv90G DFaEONFJ7BradHYfEG3PFx9aqQe77iJFleRp35pmmrl7YFYHbWRrhEObN Q==; X-CSE-ConnectionGUID: DSO4mTwgRB+ic7VNDtwILA== X-CSE-MsgGUID: uaD0ir2NT92AjBkyRHj7vg== X-IronPort-AV: E=McAfee;i="6800,10657,11778"; a="79180234" X-IronPort-AV: E=Sophos;i="6.23,220,1770624000"; d="scan'208";a="79180234" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2026 21:47:41 -0700 X-CSE-ConnectionGUID: CUuRf8MCQuSouhIhiIoH/w== X-CSE-MsgGUID: nrUBXMGCS1WfBHAlxbxexg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,220,1770624000"; d="scan'208";a="233680717" Received: from icx008.iind.intel.com ([10.190.212.196]) by fmviesa008.fm.intel.com with ESMTP; 06 May 2026 21:47:39 -0700 From: Rajesh Kumar To: dev@dpdk.org Cc: bruce.richardson@intel.com, aman.deep.singh@intel.com, stephen@networkplumber.org, mb@smartsharesystems.com, Rajesh Kumar Subject: [PATCH v6 0/4] PTP protocol support in lib/net Date: Thu, 7 May 2026 15:43:10 +0530 Message-ID: <20260507101314.2456467-1-rajesh3.kumar@intel.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260428010117.692626-1-rajesh3.kumar@intel.com> References: <20260428010117.692626-1-rajesh3.kumar@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add IEEE 1588-2019 Precision Time Protocol (PTP) support to DPDK via a new header library in lib/net/. This patchset provides wire-format packet structure definitions and inline helpers for Transparent Clock and ordinary clock applications. ## Design Rationale Following DPDK conventions for protocol libraries (rte_tcp.h, rte_ip.h), PTP definitions are provided as a header-only library with inline functions for zero-overhead packet processing. All functions are suitable for real-time, performance-critical code paths. ## Contents **Patch 1:** lib/net/rte_ptp.h - Header structures and inline helpers - rte_ptp_port_id: 10-byte port identity with EUI-64 clock ID - rte_ptp_hdr: 34-byte PTP v2 common message header - rte_ptp_timestamp: 10-byte nanosecond-precision timestamp - Message type constants (Sync, Delay_Req, Announce, etc.) - Flag field bits (two-step, unicast, leap indicator) - Inline helpers: rte_ptp_msg_type(), rte_ptp_seq_id(), rte_ptp_is_event(), rte_ptp_correction_ns(), rte_ptp_add_correction(), rte_ptp_timestamp_to_ns() **Patch 2:** examples/ptp_tap_relay_sw - Software PTP Transparent Clock relay - Relays PTP packets between a DPDK-bound physical NIC and Linux TAP interface - Software timestamp-based residence time measurement (CLOCK_MONOTONIC) - Accumulates residence time to PTP correctionField per IEEE 1588-2019 §10.2 - Handles L2, VLAN/QinQ, UDP/IPv4, UDP/IPv6 PTP encapsulations - Works with unmodified Linux kernel and stock DPDK (no patches required) - Compatible with standard linuxptp (ptp4l) tooling **Patch 3:** doc/guides/rel_notes/release_26_07.rst - Release notes update **Patch 4:** examples/ptpclient - Update to use lib/net PTP definitions - Uses RTE_ETHER_TYPE_1588 constant - Adds lib/net dependency ## Testing - Build: `ninja -C build` — clean compilation - Examples: Both ptpclient and ptp_tap_relay_sw compile and link correctly - No stale references to old patterns or removed functions ## Changelog v6 changes: - Restructured to lib/net (header-only, following lib/net conventions) - Removed separate DPI library functions (moved to example-local ptp_parse.h) - Removed app/test unit tests (library now header-only, example-driven testing) - Removed programmer's guide doc (lib/net headers use Doxygen API docs only) Rajesh Kumar (4): lib/net: add IEEE 1588 PTP v2 protocol header definitions examples/ptp_tap_relay_sw: add PTP software transparent clock relay doc: update release notes for PTP protocol library examples/ptpclient: use shared PTP library definitions MAINTAINERS | 6 + doc/guides/rel_notes/release_26_07.rst | 12 + doc/guides/sample_app_ug/ptp_tap_relay_sw.rst | 212 +++++++++ examples/ptp_tap_relay_sw/Makefile | 41 ++ examples/ptp_tap_relay_sw/meson.build | 13 + examples/ptp_tap_relay_sw/ptp_parse.h | 211 +++++++++ examples/ptp_tap_relay_sw/ptp_tap_relay_sw.c | 432 ++++++++++++++++++ examples/ptpclient/meson.build | 1 + examples/ptpclient/ptpclient.c | 4 +- lib/net/meson.build | 1 + lib/net/rte_ptp.h | 264 +++++++++++ 11 files changed, 1195 insertions(+), 2 deletions(-) create mode 100644 doc/guides/sample_app_ug/ptp_tap_relay_sw.rst create mode 100644 examples/ptp_tap_relay_sw/Makefile create mode 100644 examples/ptp_tap_relay_sw/meson.build create mode 100644 examples/ptp_tap_relay_sw/ptp_parse.h create mode 100644 examples/ptp_tap_relay_sw/ptp_tap_relay_sw.c create mode 100644 lib/net/rte_ptp.h -- 2.53.0