From patchwork Fri Apr 14 05:26:48 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: 13210948 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 EFC45C77B70 for ; Fri, 14 Apr 2023 05:27:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229457AbjDNF1j (ORCPT ); Fri, 14 Apr 2023 01:27:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51066 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229450AbjDNF1h (ORCPT ); Fri, 14 Apr 2023 01:27:37 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F1C9D1BE8; Thu, 13 Apr 2023 22:27:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681450055; x=1712986055; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=5n/0mu42zjwQFiX1Bk2YBnMsraHX2+ZdlcxSeNpwlQA=; b=GDQODF+IB4c7PWaOy+wICacgxDdbDCvHTt6rIp6ykLNf421zZ8bamOvF CGk3iM5Co5+PYe82SMHF5HAwzKEbLOehSoYeuHdIirTA221DyO2wGB1AI 0DXF30Ddg5agvCjTim2KKL5Ep+a4gFCJkJsv4b31owHxvZBV1T82uy6ah 8c2TXYGASSUpd0jNDIdoyqe5qJI0wNqcVkm9L7Q0mLcDH2msTv3rtrI1h +zUYp++fMKbAKcLxhKj9TYsvUIMLffisLzhkTOsYPlBAMFd/BD+v/FU6K fPmXkgJztjgCSAp07hDTlcanh2GtgdCnY40w7YWnZ5pgc0k97+Y7OFtJn w==; X-IronPort-AV: E=McAfee;i="6600,9927,10679"; a="333152648" X-IronPort-AV: E=Sophos;i="5.99,195,1677571200"; d="scan'208";a="333152648" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2023 22:27:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10679"; a="692234132" X-IronPort-AV: E=Sophos;i="5.99,195,1677571200"; d="scan'208";a="692234132" Received: from p12ill20yoongsia.png.intel.com ([10.88.227.28]) by fmsmga007.fm.intel.com with ESMTP; 13 Apr 2023 22:27:28 -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 v5 0/3] XDP Rx HWTS metadata for stmmac driver Date: Fri, 14 Apr 2023 13:26:48 +0800 Message-Id: <20230414052651.1871424-1-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 changelog: 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(-)