From patchwork Thu Apr 13 03:25:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Song Yoong Siang X-Patchwork-Id: 13209717 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 42B90C77B61 for ; Thu, 13 Apr 2023 03:26:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229564AbjDMD0T (ORCPT ); Wed, 12 Apr 2023 23:26:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229522AbjDMD0S (ORCPT ); Wed, 12 Apr 2023 23:26:18 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8B0204ED8; Wed, 12 Apr 2023 20:26:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681356377; x=1712892377; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=RjSH9E6OXfyTQYug3/UlEBpso7/A92OM8O59zWyTQIc=; b=mhnxVvyoZePHGYCun5fMNkko14gjKS3ZNW7kEKRvyMsVmpgFcpzMuR3G 9+PUioqOkn0XRZ3jzZ250X7ugmUV+Gt7ORzJF1WsRUkNvPaihZ9eTf/Er 2CIYaXZVHn7ntrmbEm9r2gsxERd1Y4kB8yyj/DNDfxR81G4HiZNikYQzH luH2A0eagbP6H374fsl/T8miUXyNm7eToto3tFIWOjvglVWDqkWIUuZ7N VvHbRZjde1WsB5uk2BWd69OO+HH5rC+nK267BILfc8UyU5KACkvwX2FTw KMq8mquvsuLyEl5LqWNRpPUF5WPeEc2mjg3FZrKtIKWGUwF8C3PojLVNL Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10678"; a="332781610" X-IronPort-AV: E=Sophos;i="5.98,339,1673942400"; d="scan'208";a="332781610" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Apr 2023 20:26:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10678"; a="800597033" X-IronPort-AV: E=Sophos;i="5.98,339,1673942400"; d="scan'208";a="800597033" Received: from p12ill20yoongsia.png.intel.com ([10.88.227.28]) by fmsmga002.fm.intel.com with ESMTP; 12 Apr 2023 20:26:11 -0700 From: Song Yoong Siang To: Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Alexander Duyck , Ong Boon Leong Cc: netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, xdp-hints@xdp-project.net, Song Yoong Siang Subject: [PATCH net-next v4 0/3] XDP Rx HWTS metadata for stmmac driver Date: Thu, 13 Apr 2023 11:25:38 +0800 Message-Id: <20230413032541.885238-1-yoong.siang.song@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Implemented XDP receive hardware timestamp metadata for stmmac driver. This patchset is tested with tools/testing/selftests/bpf/xdp_hw_metadata. Below are the test steps and results. Command on DUT: sudo ./xdp_hw_metadata Command on Link Partner: echo -n xdp | nc -u -q1 9091 echo -n skb | nc -u -q1 9092 Result for port 9091: 0x55fdb5f006d0: rx_desc[3]->addr=1000000003bd000 addr=3bd100 comp_addr=3bd000 rx_timestamp: 1677762474360150047 rx_hash: 0 0x55fdb5f006d0: complete idx=515 addr=3bd000 Result for port 9092: found skb hwtstamp = 1677762476.320146161 Changes since v3: * directly retrieve Rx HWTS in stmmac_xdp_rx_timestamp(), instead of reuse stmmac_get_rx_hwtstamp() Changes since v2: * To reduce packet processing cost, get the Rx HWTS only when xmo_rx_timestamp() is called Changes since v1: * Add static to stmmac_xdp_metadata_ops declaration --- Song Yoong Siang (3): net: stmmac: introduce wrapper for struct xdp_buff net: stmmac: add Rx HWTS metadata to XDP receive pkt net: stmmac: add Rx HWTS metadata to XDP ZC receive pkt drivers/net/ethernet/stmicro/stmmac/stmmac.h | 7 ++ .../net/ethernet/stmicro/stmmac/stmmac_main.c | 80 ++++++++++++++++--- 2 files changed, 77 insertions(+), 10 deletions(-)