From patchwork Mon Apr 10 15:57:21 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: 13206470 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DAC8AC77B77 for ; Mon, 10 Apr 2023 15:59:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=qVMRpJR3u6qkebZLlY7zLUvRav6Rcf8frRmekSzyNbI=; b=eRgdOwupU0M8jj ZdAPe7teQnGZC2jTm7W0NrrFnxQpSOuHSHtkSCJIZx3j7bLHa7/l/aTCEA+IJWco2lhpkj3Hbm+1G Vo/7ar0ZXWJp2zomKFcJJmlIDFfJ3TpdQiBaUv0qfXe556IneKyEhCmUQMgoo4HIPWWM10EwOBFVF kIaS9UcXLkiZz7hNfhPSAser42hjCrcxP4HKk8hXHbDvvOThEkJLR0JYsYnIANzquFWhd7xKmy+Gd cKNxZTBJuZkELvwg0bpW8XKZw2BR3B4pA2+OjO0f8d5450ixQ1Q/BL2nZE+BvyljX/Go+biJiTN6Y rdmEHM8ehPah5zc2MbNw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pltuP-00FUKI-0f; Mon, 10 Apr 2023 15:58:21 +0000 Received: from mga14.intel.com ([192.55.52.115]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pltuM-00FUG2-28 for linux-arm-kernel@lists.infradead.org; Mon, 10 Apr 2023 15:58:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681142298; x=1712678298; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=epNmJmT4mdsPOw/HzfxOribgjhbn4L4BH4c8uTIvlqY=; b=CLMNz/eZl81U9QFQ1iWbRU/RERCpor8/Sx1WMnugNqlCl2Nl3Nw5jGro g6yXw5Zete3hZrmuyaS91AsfnDGd7h8nYoR/kHqscD1Z26Osr9+1ABe3g zoNV+BuyPDNM+4l+ZuzT3Z8xyMO5YlzX/jDwiH6+zCu6QTIyvJV5VwReT F79k99qt1M/KUKObr0wa8EfUvFju7OVSH4aVFf40CpurPdj8Q+SDRC0n6 WF3aAKcXuyfQMbGYBEggcephMqeBuj/+XHxLhbeQhlHTo7G2sW0/blqKC xCrM3k7wo3QJaV3B4OEh2BINZBl/caHMNsRfqS1kY/spnTgdodVHh1hEC A==; X-IronPort-AV: E=McAfee;i="6600,9927,10676"; a="343391797" X-IronPort-AV: E=Sophos;i="5.98,333,1673942400"; d="scan'208";a="343391797" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2023 08:58:18 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10676"; a="777601767" X-IronPort-AV: E=Sophos;i="5.98,333,1673942400"; d="scan'208";a="777601767" Received: from p12ill20yoongsia.png.intel.com ([10.88.227.28]) by FMSMGA003.fm.intel.com with ESMTP; 10 Apr 2023 08:58:12 -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 v2 3/4] net: stmmac: add Rx HWTS metadata to XDP receive pkt Date: Mon, 10 Apr 2023 23:57:21 +0800 Message-Id: <20230410155722.335908-4-yoong.siang.song@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230410155722.335908-1-yoong.siang.song@intel.com> References: <20230410155722.335908-1-yoong.siang.song@intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230410_085818_723212_E785F0CC X-CRM114-Status: GOOD ( 14.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add receive hardware timestamp metadata support via kfunc to XDP receive packets. Signed-off-by: Song Yoong Siang --- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 1 + .../net/ethernet/stmicro/stmmac/stmmac_main.c | 24 +++++++++++++++++-- 2 files changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index ac8ccf851708..760445275da8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -94,6 +94,7 @@ struct stmmac_rx_buffer { struct stmmac_xdp_buff { struct xdp_buff xdp; + ktime_t rx_hwts; }; struct stmmac_rx_queue { diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index f7bbdf04d20c..7f1c0c36de8c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5307,6 +5307,8 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) } } + stmmac_get_rx_hwtstamp(priv, p, np, &ctx.rx_hwts); + if (!skb) { unsigned int pre_len, sync_len; @@ -5315,7 +5317,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) xdp_init_buff(&ctx.xdp, buf_sz, &rx_q->xdp_rxq); xdp_prepare_buff(&ctx.xdp, page_address(buf->page), - buf->page_offset, buf1_len, false); + buf->page_offset, buf1_len, true); pre_len = ctx.xdp.data_end - ctx.xdp.data_hard_start - buf->page_offset; @@ -5411,7 +5413,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) shhwtstamp = skb_hwtstamps(skb); memset(shhwtstamp, 0, sizeof(struct skb_shared_hwtstamps)); - stmmac_get_rx_hwtstamp(priv, p, np, &shhwtstamp->hwtstamp); + shhwtstamp->hwtstamp = ctx.rx_hwts; stmmac_rx_vlan(priv->dev, skb); skb->protocol = eth_type_trans(skb, priv->dev); @@ -7071,6 +7073,22 @@ void stmmac_fpe_handshake(struct stmmac_priv *priv, bool enable) } } +static int stmmac_xdp_rx_timestamp(const struct xdp_md *_ctx, u64 *timestamp) +{ + const struct stmmac_xdp_buff *ctx = (void *)_ctx; + + if (ctx->rx_hwts) { + *timestamp = ctx->rx_hwts; + return 0; + } + + return -ENODATA; +} + +static const struct xdp_metadata_ops stmmac_xdp_metadata_ops = { + .xmo_rx_timestamp = stmmac_xdp_rx_timestamp, +}; + /** * stmmac_dvr_probe * @device: device pointer @@ -7178,6 +7196,8 @@ int stmmac_dvr_probe(struct device *device, ndev->netdev_ops = &stmmac_netdev_ops; + ndev->xdp_metadata_ops = &stmmac_xdp_metadata_ops; + ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM; ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |