From patchwork Sat Apr 15 06:45:00 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: 13212305 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 4368CC77B73 for ; Sat, 15 Apr 2023 06:45:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229461AbjDOGpl (ORCPT ); Sat, 15 Apr 2023 02:45:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34056 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229547AbjDOGpk (ORCPT ); Sat, 15 Apr 2023 02:45:40 -0400 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74E36559D; Fri, 14 Apr 2023 23:45:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681541139; x=1713077139; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=XPf0NWZspgmTmraWV1B8of1VGZ27Uk2q/PwjqH0foXk=; b=LoS2NEQQYFS+rj03ionLpzDk1zhJ+7Cihz/6QhiB01rsd/BbuEHqzS79 UxnP8HvG1dQfRglyMMuPiFK1vjAD9I+oKYtuOpSlVO3PasYt4leJfoDfE d4HrLt1Z45If9WvTNiSvr0wXn+fiyJC5PL1X9H8BfO3FbEnx02i9WPjb6 l675rN+EarEYkUfNzdIZ3wb9Tbes+AKfUX+Q8m6l7aa3qp7nLEntNb4Su AVyEyLVyzTQpA3bf21CMbnFPQchA/x+Zq+HDKbcBGfthgaBERPpjRlNEM S/k1XhmD+kVlBXFltrRHGRG0zudlGKadCnoW6aiJ74IlQwcnyMPtTg7ds g==; X-IronPort-AV: E=McAfee;i="6600,9927,10680"; a="343379257" X-IronPort-AV: E=Sophos;i="5.99,199,1677571200"; d="scan'208";a="343379257" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Apr 2023 23:45:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10680"; a="754727538" X-IronPort-AV: E=Sophos;i="5.99,199,1677571200"; d="scan'208";a="754727538" Received: from p12ill20yoongsia.png.intel.com ([10.88.227.28]) by fmsmga008.fm.intel.com with ESMTP; 14 Apr 2023 23:45:33 -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 , Jesper Dangaard Brouer , Ong Boon Leong , Jacob Keller 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 v6 0/3] XDP Rx HWTS metadata for stmmac driver Date: Sat, 15 Apr 2023 14:45:00 +0800 Message-Id: <20230415064503.3225835-1-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: poll: 1 (0) skip=1 fail=0 redir=1 xsk_ring_cons__peek: 1 0x55f69f65f6d0: rx_desc[0]->addr=100000000008000 addr=8100 comp_addr=8000 rx_timestamp: 1677762069053692631 No rx_hash err=-95 0x55f69f65f6d0: complete idx=8 addr=8000 Result for port 9092: poll: 1 (0) skip=2 fail=0 redir=1 found skb hwtstamp = 1677762071.937207680 changelog: v5 -> v6: improve field naming of struct stmmac_xdp_buff v4 -> v5: remove zeroing operation on ctx variable v3 -> v4: directly retrieve Rx HWTS in stmmac_xdp_rx_timestamp(), instead of reuse stmmac_get_rx_hwtstamp() v2 -> v3: To reduce packet processing cost, get the Rx HWTS only when xmo_rx_timestamp() is called v1 -> v2: 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(-)