From patchwork Tue Mar 18 11:46:05 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 14020828 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 86D963FC2; Tue, 18 Mar 2025 11:46:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298377; cv=none; b=V2iiF5V7bDGj23qjZhU7BUdHu+R0nOg8hypXYqQYUIU6xr1wWZe93BXkp8OmsYNmqQq5hFwzysm5E94uee2axHKHkVQPjml0vAh7/K3lSAHnDFtHFaEcBWcQmPuAK9XEjdHJ4qbT6gQZ/ESLFRw/p83ClpL8WXQsu8CeBsPaLYc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298377; c=relaxed/simple; bh=5bdfNHNW+EoJKgsImeaU1ELqKAI9RB+ut6VPZYTxSaY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=oKtZzJN7Hl+B4LMdWCKgh4D1rb9jFpCaGBV1FlgmGqUroK1OgJcctCUV2YOmQPpSKRsWWJwLxw1CzRqwFVEzBeuDNApvjJWvYNVxnzGu0OB006adkg7orWjCCNH0yTKf+9dK5QUjYKs6Jcqvxc8ChXT55Q4eIzajE61tB/YYWJk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dnJg0tI1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dnJg0tI1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84918C4CEDD; Tue, 18 Mar 2025 11:46:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742298377; bh=5bdfNHNW+EoJKgsImeaU1ELqKAI9RB+ut6VPZYTxSaY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=dnJg0tI1RHrQUFNIGYqSCDRHEBb8kmU7NXfRpd1yHY9RldMoknRO9txFvGJBrm+9i U3S+wYU6zSEdA6IPrFFPhhLncMYbInYbUgniDhnCLbf7AlmNeyGEKEJ9OfYE7ZQ9M4 AdkpRg3WrFBLDqRysfPleQYCb/72T6oKw4BvquInKFv6V/GlfrwB1kDD7dLuJjA3KE Hpz19NKbDM+GG8yGABbbUcxo7bsp2fK1ciHG4vM3L8w8O9d7Rh8HLW8fg+533V9oDL An687yny/E9ghZ84OHVGAIdRgEzE1DIjlYukf7YcbSBJMB66p85UyBd4yJp+RjCPW3 EQ+wZtMZOUWYw== From: Lorenzo Bianconi Date: Tue, 18 Mar 2025 12:46:05 +0100 Subject: [PATCH net-next v2 1/7] net: mvneta: Add metadata support for xdp mode Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-mvneta-xdp-meta-v2-1-b6075778f61f@kernel.org> References: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> In-Reply-To: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> To: Marcin Wojtas , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Russell King , Ilias Apalodimas , Masahisa Kojima , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Bharat Bhushan , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Siddharth Vadapalli , Roger Quadros , Lorenzo Bianconi Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-omap@vger.kernel.org, Michal Kubiak X-Mailer: b4 0.14.2 X-Patchwork-Delegate: kuba@kernel.org Set metadata size building the skb from xdp_buff in mvneta driver mvneta sets xdp headroom to: MVNETA_MH_SIZE + MVNETA_SKB_HEADROOM where MVNETA_MH_SIZE 2 MVNETA_SKB_HEADROOM max(NET_SKB_PAD, XDP_PACKET_HEADROOM) so the headroom is large enough to contain xdp_frame and xdp metadata. Reviewed-by: Michal Kubiak Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/marvell/mvneta.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 44b18c57390927e37eac267632cace656bb5526e..147571fdada378e430fd96f2fb4a7e7870b784a2 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -2342,7 +2342,7 @@ mvneta_swbm_rx_frame(struct mvneta_port *pp, prefetch(data); xdp_buff_clear_frags_flag(xdp); xdp_prepare_buff(xdp, data, pp->rx_offset_correction + MVNETA_MH_SIZE, - data_len, false); + data_len, true); } static void @@ -2396,6 +2396,7 @@ mvneta_swbm_build_skb(struct mvneta_port *pp, struct page_pool *pool, struct xdp_buff *xdp, u32 desc_status) { struct skb_shared_info *sinfo = xdp_get_shared_info_from_buff(xdp); + u32 metasize = xdp->data - xdp->data_meta; struct sk_buff *skb; u8 num_frags; @@ -2410,6 +2411,8 @@ mvneta_swbm_build_skb(struct mvneta_port *pp, struct page_pool *pool, skb_reserve(skb, xdp->data - xdp->data_hard_start); skb_put(skb, xdp->data_end - xdp->data); + if (metasize) + skb_metadata_set(skb, metasize); skb->ip_summed = mvneta_rx_csum(pp, desc_status); if (unlikely(xdp_buff_has_frags(xdp))) From patchwork Tue Mar 18 11:46:06 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 14020829 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 43D493FC2; Tue, 18 Mar 2025 11:46:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298380; cv=none; b=fl4T6n6wBpui5hmQtRHmw7pMIA1xwmtnIhp8R3x6Duz26/hvDcqwJ8cwCWGNwtKFde2kLnyui2uOwYFjWaNE0Uk/2o625H2OOtjDAisWyxXAAZK1hIaZpQ3fONGksEJzajiwhMhcw4lsJ0Ee9DhoU2rTF5vdAznhGTXjR4NwlrU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298380; c=relaxed/simple; bh=DCr2QpGbgPQw5gBmGdkCjX3bRDvZZMiE3YTraB6GULE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=aG1XeJaay3vLUYV9ur2L/pK9y2XCSEZ7VaJFKfeIn5lfUFakuSPRs4qCAdk1zGlUkyo7pun0pUK7ZBxkOBqqzlDFEK3U/8KN4l2ENDnva4ewysYJbivhehqeIKljuTSn6acN3IQeRU6q4qbviLvaRw+gvxqXYemL2ZnqMocR6No= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Te31cvkx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Te31cvkx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C9BFC4CEE3; Tue, 18 Mar 2025 11:46:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742298379; bh=DCr2QpGbgPQw5gBmGdkCjX3bRDvZZMiE3YTraB6GULE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Te31cvkxgm1OC0ygqentt4hfJVDMpbqGU6XN9WM/QgVrhshyKV2EPy2l6uhTaB8Fy ZPHGW0Tu3cXt93oFNCDkjuKfmVg9uXLIIu1sc7pnZyQbuIlh6T/0rUxWwO+5kQJ/D4 uAfzhPB/WsnDV8eudDpkdhQYWg97CLNnQdAiID0VTmUDBtYdtlOPuRHlgL5MWaeYS5 MsFx31Jcr0YBnC5n89hAEGMuwr+3qz9lQ0emYDtxfgr/b8Z+aXchmsKaUePLBYqaoT KNAfpXXUGi9Yq0GOXJT6ZbGW8vod831j87d7PKNOA89oV0mRNnTqvBt99lVec+fOfU kwfLx7iv5aB4Q== From: Lorenzo Bianconi Date: Tue, 18 Mar 2025 12:46:06 +0100 Subject: [PATCH net-next v2 2/7] net: mvpp2: Add metadata support for xdp mode Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-mvneta-xdp-meta-v2-2-b6075778f61f@kernel.org> References: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> In-Reply-To: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> To: Marcin Wojtas , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Russell King , Ilias Apalodimas , Masahisa Kojima , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Bharat Bhushan , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Siddharth Vadapalli , Roger Quadros , Lorenzo Bianconi Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-omap@vger.kernel.org, Michal Kubiak X-Mailer: b4 0.14.2 X-Patchwork-Delegate: kuba@kernel.org Set metadata size building the skb from xdp_buff in mvpp2 driver mvpp2 driver sets xdp headroom to: MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM where MVPP2_MH_SIZE 2 MVPP2_SKB_HEADROOM min(max(XDP_PACKET_HEADROOM, NET_SKB_PAD), 224) so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index f166dc4e650372d66e248601a5c948819e1dcd79..54a235366a01bdba526a1956f27836bcdee210ae 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -3915,13 +3915,13 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi, while (rx_done < rx_todo) { struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq); + u32 rx_status, timestamp, metasize = 0; struct mvpp2_bm_pool *bm_pool; struct page_pool *pp = NULL; struct sk_buff *skb; unsigned int frag_size; dma_addr_t dma_addr; phys_addr_t phys_addr; - u32 rx_status, timestamp; int pool, rx_bytes, err, ret; struct page *page; void *data; @@ -3983,7 +3983,7 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi, xdp_init_buff(&xdp, PAGE_SIZE, xdp_rxq); xdp_prepare_buff(&xdp, data, MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM, - rx_bytes, false); + rx_bytes, true); ret = mvpp2_run_xdp(port, xdp_prog, &xdp, pp, &ps); @@ -3999,6 +3999,8 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi, ps.rx_bytes += rx_bytes; continue; } + + metasize = xdp.data - xdp.data_meta; } if (frag_size) @@ -4038,6 +4040,8 @@ static int mvpp2_rx(struct mvpp2_port *port, struct napi_struct *napi, skb_reserve(skb, MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM); skb_put(skb, rx_bytes); + if (metasize) + skb_metadata_set(skb, metasize); skb->ip_summed = mvpp2_rx_csum(port, rx_status); skb->protocol = eth_type_trans(skb, dev); From patchwork Tue Mar 18 11:46:07 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 14020830 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EC71E3FC2; Tue, 18 Mar 2025 11:46:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298383; cv=none; b=K/vZbn4bVCBFZHyjZZsA5iP8QJejagahB638FRsVlZRvZkTqAYEqLuHYYu8MzBP7DnIgQEPLyiDl14ZUDcbbw5+g5zEXeAi7v5cNWMPttlFp/EiukyNl/h8o7H+CfkrPAF7TlkPKrDs/tgcD9GE6hRw9qHj+ymCgZBmmQZA5xLU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298383; c=relaxed/simple; bh=OxxwCX4kmkFgORosEwbEM+9lMLPNKxBrIFre8ujLNdY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kLYKTv3TjpP92iEiR3ilNhYK3kD75HegBnVHev4LKVZW6L1us4ysPDR3HGsnZFPxLE7I/JoWfUFWkG9TkYOb/9Nm4pc8XY1XetxWFwBRS7D1aejGHxQgwmxou+Tc0XsOq3rVMoV6zzhk4PDH8inmsyDQSRKF9y83WNmo4j6Q/Pw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G/8bSdeF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="G/8bSdeF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E22FEC4CEEE; Tue, 18 Mar 2025 11:46:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742298382; bh=OxxwCX4kmkFgORosEwbEM+9lMLPNKxBrIFre8ujLNdY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=G/8bSdeF2XHkLu2RJLqgr1qcc3i6Xqs9vw1Kb8R7xY+Fhi+0qxrWc+cK7qxI1FdJL SS9/v+gso/M9T1ReB7ioMHdNvFXQ74ImLErduWqE3fubCGlD6gfANC1nj5NWggcloQ UAjkdTZmYRgdVo66u0YvV3qtp1AcqUexUDNL77Y90PSDdyDtyRaxljl0cgT3qpMiBc sLPQRd2J4E7JhLpm0Q7XJSmpiOOvxc9bSvcPPGY/2HsGFAd1WIPookJdVIVMv0pe+u Z4oaogFa1h5bqyrwnXJlNbRTr0lO6MlVVP0YpHqUnT147kwtp4IOKu7TrPtNCwHrcu mYphVAbb4JLRA== From: Lorenzo Bianconi Date: Tue, 18 Mar 2025 12:46:07 +0100 Subject: [PATCH net-next v2 3/7] net: netsec: Add metadata support for xdp mode Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-mvneta-xdp-meta-v2-3-b6075778f61f@kernel.org> References: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> In-Reply-To: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> To: Marcin Wojtas , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Russell King , Ilias Apalodimas , Masahisa Kojima , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Bharat Bhushan , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Siddharth Vadapalli , Roger Quadros , Lorenzo Bianconi Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-omap@vger.kernel.org, Michal Kubiak X-Mailer: b4 0.14.2 X-Patchwork-Delegate: kuba@kernel.org Set metadata size building the skb from xdp_buff in netsec driver. netsec driver sets xdp headroom to NETSEC_RXBUF_HEADROOM: NETSEC_RXBUF_HEADROOM max(XDP_PACKET_HEADROOM, NET_SKB_PAD) + NET_IP_ALIGN so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Acked-by: Ilias Apalodimas Reviewed-by: Michal Kubiak Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/socionext/netsec.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/socionext/netsec.c b/drivers/net/ethernet/socionext/netsec.c index dc99821c6226fbaece65c8ade23899f610b44a9a..ee890de69ffe795dbdcc5331e36be86769f0d9a6 100644 --- a/drivers/net/ethernet/socionext/netsec.c +++ b/drivers/net/ethernet/socionext/netsec.c @@ -970,7 +970,7 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget) struct netsec_de *de = dring->vaddr + (DESC_SZ * idx); struct netsec_desc *desc = &dring->desc[idx]; struct page *page = virt_to_page(desc->addr); - u32 xdp_result = NETSEC_XDP_PASS; + u32 metasize, xdp_result = NETSEC_XDP_PASS; struct sk_buff *skb = NULL; u16 pkt_len, desc_len; dma_addr_t dma_handle; @@ -1019,7 +1019,7 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget) prefetch(desc->addr); xdp_prepare_buff(&xdp, desc->addr, NETSEC_RXBUF_HEADROOM, - pkt_len, false); + pkt_len, true); if (xdp_prog) { xdp_result = netsec_run_xdp(priv, xdp_prog, &xdp); @@ -1048,6 +1048,9 @@ static int netsec_process_rx(struct netsec_priv *priv, int budget) skb_reserve(skb, xdp.data - xdp.data_hard_start); skb_put(skb, xdp.data_end - xdp.data); + metasize = xdp.data - xdp.data_meta; + if (metasize) + skb_metadata_set(skb, metasize); skb->protocol = eth_type_trans(skb, priv->ndev); if (priv->rx_cksum_offload_flag && From patchwork Tue Mar 18 11:46:08 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 14020831 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5281920AF75; Tue, 18 Mar 2025 11:46:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298385; cv=none; b=MuJ4rW+e5+HfvA9yDELw8P1Ly6T8+F8D2051IAG7GYjAA5ftSNB9VnEH7OHQscCeUvUGymWrgBNE7sIf3fd24Kghm2TheDhb+391qClVQpjCstakV/PMX80t2KiVheVPbMncA7v7azli0EbhkebqnFQHbRoK8C8iImkF0youQhs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298385; c=relaxed/simple; bh=dRSfnENYRHZuwLrer5dn2uietYIYGVOL//E5QEzIj7M=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=kF6AUeK6jhY1V7W9r/W8ebMusYjV2MRogklb05OTKb4uB3D7lBMLeXbespjpoZpSTegUUMDf5z4X/gi6ck0rkoo/QWscq5ohEM7no5PhgZhcJJ0EgsBmwiLoQCa7uy557XJa+7i+ooUpyPhTEyzw+Zw3D1ZMmZT1EbH/LPmgCZ8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kakTF8xz; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kakTF8xz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9C527C4CEDD; Tue, 18 Mar 2025 11:46:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742298385; bh=dRSfnENYRHZuwLrer5dn2uietYIYGVOL//E5QEzIj7M=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=kakTF8xznxHOSoYlefG4ova38cxne+CfXCK6RIEWsZvtOCakeIrADtZiggj19G/Kt hG9Tsl/MpSLA5/ofq8qYq9zhgYlawnwrY466ZZZ6BKrvs2M1TKEzD8G6QG4XIF4onX tKDR+5oxV3q/VyS0PhhrFvActDo9NXNMx9172ecIqmhGmdX0CMkAhP8/5r5WYAtWw/ jFZhWbLb9sQ2WSna8YID9cJQAGgM+brAmatv/F9ZRJtTd/W3zeOi17Nei8dTh3R3pI 2bQCpg6Ouyksuva4wkCeEEJBemnOQkBpI/zIKUHOTpk1A7h+C8cExW0ETq25flAUZJ +RE/svSuLy+IQ== From: Lorenzo Bianconi Date: Tue, 18 Mar 2025 12:46:08 +0100 Subject: [PATCH net-next v2 4/7] net: octeontx2: Add metadata support for xdp mode Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-mvneta-xdp-meta-v2-4-b6075778f61f@kernel.org> References: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> In-Reply-To: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> To: Marcin Wojtas , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Russell King , Ilias Apalodimas , Masahisa Kojima , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Bharat Bhushan , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Siddharth Vadapalli , Roger Quadros , Lorenzo Bianconi Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-omap@vger.kernel.org, Michal Kubiak X-Mailer: b4 0.14.2 X-Patchwork-Delegate: kuba@kernel.org Set metadata size building the skb from xdp_buff in octeontx2 driver. octeontx2 driver sets xdp headroom to OTX2_HEAD_ROOM OTX2_HEAD_ROOM OTX2_ALIGN OTX2_ALIGN 128 so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c index 6bc5ce5a9f61cc2830975e7cc5219344760b0e51..af8cabe828d05c8832085d24d183312f24d00330 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_txrx.c @@ -41,7 +41,7 @@ static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, struct bpf_prog *prog, struct nix_cqe_rx_s *cqe, struct otx2_cq_queue *cq, - bool *need_xdp_flush); + u32 *metasize, bool *need_xdp_flush); static void otx2_sq_set_sqe_base(struct otx2_snd_queue *sq, struct sk_buff *skb) @@ -336,6 +336,7 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, struct nix_rx_sg_s *sg = &cqe->sg; struct sk_buff *skb = NULL; void *end, *start; + u32 metasize = 0; u64 *seg_addr; u16 *seg_size; int seg; @@ -346,7 +347,8 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, } if (pfvf->xdp_prog) - if (otx2_xdp_rcv_pkt_handler(pfvf, pfvf->xdp_prog, cqe, cq, need_xdp_flush)) + if (otx2_xdp_rcv_pkt_handler(pfvf, pfvf->xdp_prog, cqe, cq, + &metasize, need_xdp_flush)) return; skb = napi_get_frags(napi); @@ -378,6 +380,8 @@ static void otx2_rcv_pkt_handler(struct otx2_nic *pfvf, skb->mark = parse->match_id; skb_mark_for_recycle(skb); + if (metasize) + skb_metadata_set(skb, metasize); napi_gro_frags(napi); } @@ -1482,7 +1486,7 @@ static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, struct bpf_prog *prog, struct nix_cqe_rx_s *cqe, struct otx2_cq_queue *cq, - bool *need_xdp_flush) + u32 *metasize, bool *need_xdp_flush) { struct xdp_buff xdp, *xsk_buff = NULL; unsigned char *hard_start; @@ -1514,13 +1518,14 @@ static bool otx2_xdp_rcv_pkt_handler(struct otx2_nic *pfvf, hard_start = (unsigned char *)phys_to_virt(pa); xdp_prepare_buff(&xdp, hard_start, OTX2_HEAD_ROOM, - cqe->sg.seg_size, false); + cqe->sg.seg_size, true); act = bpf_prog_run_xdp(prog, &xdp); handle_xdp_verdict: switch (act) { case XDP_PASS: + *metasize = xdp.data - xdp.data_meta; break; case XDP_TX: qidx += pfvf->hw.tx_queues; From patchwork Tue Mar 18 11:46:09 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 14020832 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5D50F20AF75; Tue, 18 Mar 2025 11:46:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298388; cv=none; b=HrfPRiUdSpBQp0xKY7zZZ0dY+nC4N+oU5CoflyKyxdxgquSOOG1Hyv2F9QQgYgbErnbrKZscyzOc16ONHNEbX/OLsSB/70LEbWnf4/ojCPlzXmZ1rmaIgwTqSgXtb2mNPEyCBqIeYaBIM0o0KMv05Fdbloz6jhUh4Q5V32phaDQ= ARC-Message-Signature: i=1; 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b=FO+/WkVRAwmPbiaKbNXqxIgsH2lu0e7EGaDmOohEAp6ewe9UFMMUwgjNDkfMecZ67 t9+bexBKdKF4l2aRqPMjh5ysoV+mZtkicBTHdlfSG75EdgGgzG+ItywjjiOtkw6b8N dAYaGJ6SPV2LZpZ+5Rk8DFxcLxBupSWV2NwUc3kapEbEq0a6RucKe88aM5x0+5rX5f MDcE5aBBEV8VgWLuD9H63kl32IOsSAfSc3lFlJUB2tHzP5DS6Q7SfSuehU5Dmhjrc3 OzXNn8hf54A9OmcPdrHmD/gfQAz9dgYJr6mNeK+Zwiuu48WrpzLS/O8kxYyy51EEDj F6vSBpkJdvccQ== From: Lorenzo Bianconi Date: Tue, 18 Mar 2025 12:46:09 +0100 Subject: [PATCH net-next v2 5/7] net: ethernet: mediatek: Add metadata support for xdp mode Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-mvneta-xdp-meta-v2-5-b6075778f61f@kernel.org> References: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> In-Reply-To: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> To: Marcin Wojtas , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Russell King , Ilias Apalodimas , Masahisa Kojima , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Bharat Bhushan , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Siddharth Vadapalli , Roger Quadros , Lorenzo Bianconi Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-omap@vger.kernel.org, Michal Kubiak X-Mailer: b4 0.14.2 X-Patchwork-Delegate: kuba@kernel.org Set metadata size building the skb from xdp_buff in mediatek driver. mtk_eth_soc driver sets xdp headroom to XDP_PACKET_HEADROOM so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 922330b3f4d70421276ecd3f4ab175b3ae263f71..43197b28b3e745319e974c6022a6a51b6953f60a 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2122,7 +2122,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, if (ring->page_pool) { struct page *page = virt_to_head_page(data); struct xdp_buff xdp; - u32 ret; + u32 ret, metasize; new_data = mtk_page_pool_get_buff(ring->page_pool, &dma_addr, @@ -2138,7 +2138,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, xdp_init_buff(&xdp, PAGE_SIZE, &ring->xdp_q); xdp_prepare_buff(&xdp, data, MTK_PP_HEADROOM, pktlen, - false); + true); xdp_buff_clear_frags_flag(&xdp); ret = mtk_xdp_run(eth, ring, &xdp, netdev); @@ -2158,6 +2158,9 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, skb_reserve(skb, xdp.data - xdp.data_hard_start); skb_put(skb, xdp.data_end - xdp.data); + metasize = xdp.data - xdp.data_meta; + if (metasize) + skb_metadata_set(skb, metasize); skb_mark_for_recycle(skb); } else { if (ring->frag_size <= PAGE_SIZE) From patchwork Tue Mar 18 11:46:10 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 14020833 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7DBE120AF75; Tue, 18 Mar 2025 11:46:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298390; cv=none; b=AP0rSmE+IVamJHd4dwBPp4hch1ZeDwiZJhdXnWznk6rFkhVF5BSrjKUr6u0IFiLQ0izKGp+Si1mxM7DnOyXe6Oxbf3oaZzxLByCDsHDvddtGjwYCmTo1cgNjPG/bjz1tYoqYg1K0Rq50qML/XA4ab7m70CSKDOtZSQ1o7W14kUk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298390; c=relaxed/simple; bh=iVv9lKsgzc7NHnkM2bif0jCWiz/F21PHpCbC8MzU9us=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=UCQWN2TeAZL7kvRxqe5FFcpuKjDL4FifGCSiXgZ/+DmuihsA0jdW42OVpMfYas5jnt7hWCFYAFESLzBaQO2bQfT93jGVdIZcuscVSpuPMitUfES4mC0jhB83O1XbPOVwoNP/+Bmz7lMMqc8eYDUyNHpZ/AVXd59oSRN45jmsZRc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KBECqMmd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KBECqMmd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CD104C4CEEF; Tue, 18 Mar 2025 11:46:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742298390; bh=iVv9lKsgzc7NHnkM2bif0jCWiz/F21PHpCbC8MzU9us=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=KBECqMmdeZ8yKJyBVe2cc8UUyMS4dTq73V1W4rI1ZwPqcLZwmIXMDoHrHFAPjGY6V EGzq4181p57fxkBYmMZ1SWAWgtOZkClekmig7OhdkIylg8nNRu8wuMZzPuv5M2BkR7 deXdnJJ2sa5MoHsANTfBX6GJTsx/idultdZVL5WVvrFiontRDeS3yaXy0vAu4SfDB9 5lsel9aY6VHkt5gHBBUw3nYKoG+N6J/tykrk0H65Yw0jBAUbcIImaCjGmjJvHFECGz Z9IeXXzwxfXB/y60Chk+vUhjYGM4kd5xkW2dWHi5E4jFnMbDGIcdsE6tNdqoGUFgn3 Okyr8lWvlENLQ== From: Lorenzo Bianconi Date: Tue, 18 Mar 2025 12:46:10 +0100 Subject: [PATCH net-next v2 6/7] net: mana: Add metadata support for xdp mode Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-mvneta-xdp-meta-v2-6-b6075778f61f@kernel.org> References: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> In-Reply-To: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> To: Marcin Wojtas , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Russell King , Ilias Apalodimas , Masahisa Kojima , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Bharat Bhushan , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Siddharth Vadapalli , Roger Quadros , Lorenzo Bianconi Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-omap@vger.kernel.org, Michal Kubiak X-Mailer: b4 0.14.2 X-Patchwork-Delegate: kuba@kernel.org Set metadata size building the skb from xdp_buff in mana driver. mana driver sets xdp headroom to XDP_PACKET_HEADROOM so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/microsoft/mana/mana_bpf.c | 2 +- drivers/net/ethernet/microsoft/mana/mana_en.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/microsoft/mana/mana_bpf.c b/drivers/net/ethernet/microsoft/mana/mana_bpf.c index 23b1521c0df96e7fd595daad8b49fa9be935090c..d30721d4516fc60cf8883f2b35cc561559082ccc 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_bpf.c +++ b/drivers/net/ethernet/microsoft/mana/mana_bpf.c @@ -91,7 +91,7 @@ u32 mana_run_xdp(struct net_device *ndev, struct mana_rxq *rxq, goto out; xdp_init_buff(xdp, PAGE_SIZE, &rxq->xdp_rxq); - xdp_prepare_buff(xdp, buf_va, XDP_PACKET_HEADROOM, pkt_len, false); + xdp_prepare_buff(xdp, buf_va, XDP_PACKET_HEADROOM, pkt_len, true); act = bpf_prog_run_xdp(prog, xdp); diff --git a/drivers/net/ethernet/microsoft/mana/mana_en.c b/drivers/net/ethernet/microsoft/mana/mana_en.c index 9a8171f099b63c6a1a6415f12718d46d5d835f97..e190d5ee51544090a703c14c76abdc23797f864a 100644 --- a/drivers/net/ethernet/microsoft/mana/mana_en.c +++ b/drivers/net/ethernet/microsoft/mana/mana_en.c @@ -1559,8 +1559,12 @@ static struct sk_buff *mana_build_skb(struct mana_rxq *rxq, void *buf_va, return NULL; if (xdp->data_hard_start) { + u32 metasize = xdp->data - xdp->data_meta; + skb_reserve(skb, xdp->data - xdp->data_hard_start); skb_put(skb, xdp->data_end - xdp->data); + if (metasize) + skb_metadata_set(skb, metasize); return skb; } From patchwork Tue Mar 18 11:46:11 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 14020834 X-Patchwork-Delegate: kuba@kernel.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A8F6205ABF; Tue, 18 Mar 2025 11:46:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298393; cv=none; b=P8/YTBP6qJgYzjqPwHHkw8Bay60Loskg8trrE7ay2GUyLNT7T0cC7Hr256insG8SdpRpDyB9hJUXn2KF4DwOD+zSqatc6NC4/DmfLqIn6pkXnxPe8eTQSUhYEJSmqj3jucK4qWJZsDE6BrjBMc52r7sQddetZW5zjElDdbkZONs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742298393; c=relaxed/simple; bh=tn+hq/0Bcb87RovOeP5Bt+IfR0Zp29EmcXvKf0cZpUk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=eTPO6JRuZLQSHf7bd98oECktNJdpscA7K6u7QQzM+sgcTaciY1YOWLOOHH+dCar04EVfH0hXjY/Iw3gPpd25VX767Uzn01IH0Rmtpa/j+HD3Uy0NKBU+EEoXqyfOjxZjGB5EEzSdPsX+vgpvJWV8A1ywbhgedfhsp1GYJ/4kkEU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qjjG1njZ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qjjG1njZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A68BC4CEDD; Tue, 18 Mar 2025 11:46:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742298392; bh=tn+hq/0Bcb87RovOeP5Bt+IfR0Zp29EmcXvKf0cZpUk=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=qjjG1njZTUG9rTBF7/APH6lBgtwgCIYSgX0FQiQLgna6AbPIzk+CTTlZZSa1gerVt Rp/KCVp7JDwwYy504ZHF+lk8Wu+9lzNNTYVo04k8zZKdBZ+JIa/YjbKycMcjpuNqz6 iJCeFzES9xKg7DgrNR2Z884Lhz4irjZHKm4KorN1QgF+iIO2TmK2MCbzrwoTIRIzrp nnVxKIPAmMV3tJjqP42kQPoUI3rlLapeeJaWXuYs0oSfUpnEgAPl7E6wwkpW6Ku8/0 EoklRCPx8CWC4gJmymjnaLAx1yUNE/tVzSdImFL0iKRYWWFOeOP7bYHT4XCHXqZ+Jv BAiaHx489kSFg== From: Lorenzo Bianconi Date: Tue, 18 Mar 2025 12:46:11 +0100 Subject: [PATCH net-next v2 7/7] net: ti: cpsw: Add metadata support for xdp mode Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250318-mvneta-xdp-meta-v2-7-b6075778f61f@kernel.org> References: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> In-Reply-To: <20250318-mvneta-xdp-meta-v2-0-b6075778f61f@kernel.org> To: Marcin Wojtas , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Russell King , Ilias Apalodimas , Masahisa Kojima , Sunil Goutham , Geetha sowjanya , Subbaraya Sundeep , hariprasad , Bharat Bhushan , Felix Fietkau , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Siddharth Vadapalli , Roger Quadros , Lorenzo Bianconi Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-hyperv@vger.kernel.org, linux-omap@vger.kernel.org, Michal Kubiak X-Mailer: b4 0.14.2 X-Patchwork-Delegate: kuba@kernel.org Set metadata size building the skb from xdp_buff in cpsw/cpsw_new drivers. ti cpsw and cpsw_new drivers set xdp headroom at least to CPSW_HEADROOM_NA: CPSW_HEADROOM_NA max(XDP_PACKET_HEADROOM, NET_SKB_PAD) + NET_IP_ALIGN so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/ti/cpsw.c | 6 +++++- drivers/net/ethernet/ti/cpsw_new.c | 6 +++++- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 0cb6fa6e5b7d4fb9703633f0d67a7e95e6e7d8aa..a984b7d84e5e5917b83547c862924ccd30d83601 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -351,6 +351,7 @@ static void cpsw_rx_handler(void *token, int len, int status) int ret = 0, port, ch = xmeta->ch; int headroom = CPSW_HEADROOM_NA; struct net_device *ndev = xmeta->ndev; + u32 metasize = 0; struct cpsw_priv *priv; struct page_pool *pool; struct sk_buff *skb; @@ -400,7 +401,7 @@ static void cpsw_rx_handler(void *token, int len, int status) size -= CPSW_RX_VLAN_ENCAP_HDR_SIZE; } - xdp_prepare_buff(&xdp, pa, headroom, size, false); + xdp_prepare_buff(&xdp, pa, headroom, size, true); port = priv->emac_port + cpsw->data.dual_emac; ret = cpsw_run_xdp(priv, ch, &xdp, page, port, &len); @@ -408,6 +409,7 @@ static void cpsw_rx_handler(void *token, int len, int status) goto requeue; headroom = xdp.data - xdp.data_hard_start; + metasize = xdp.data - xdp.data_meta; /* XDP prog can modify vlan tag, so can't use encap header */ status &= ~CPDMA_RX_VLAN_ENCAP; @@ -423,6 +425,8 @@ static void cpsw_rx_handler(void *token, int len, int status) skb_reserve(skb, headroom); skb_put(skb, len); + if (metasize) + skb_metadata_set(skb, metasize); skb->dev = ndev; if (status & CPDMA_RX_VLAN_ENCAP) cpsw_rx_vlan_encap(skb); diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c index 3da1c131335df1ff79b32ce0e3ea5200a2e53f4b..5b5b52e4e7a757a14965fe6df41935aed547111f 100644 --- a/drivers/net/ethernet/ti/cpsw_new.c +++ b/drivers/net/ethernet/ti/cpsw_new.c @@ -293,6 +293,7 @@ static void cpsw_rx_handler(void *token, int len, int status) struct page_pool *pool; struct sk_buff *skb; struct xdp_buff xdp; + u32 metasize = 0; int ret = 0; dma_addr_t dma; @@ -345,13 +346,14 @@ static void cpsw_rx_handler(void *token, int len, int status) size -= CPSW_RX_VLAN_ENCAP_HDR_SIZE; } - xdp_prepare_buff(&xdp, pa, headroom, size, false); + xdp_prepare_buff(&xdp, pa, headroom, size, true); ret = cpsw_run_xdp(priv, ch, &xdp, page, priv->emac_port, &len); if (ret != CPSW_XDP_PASS) goto requeue; headroom = xdp.data - xdp.data_hard_start; + metasize = xdp.data - xdp.data_meta; /* XDP prog can modify vlan tag, so can't use encap header */ status &= ~CPDMA_RX_VLAN_ENCAP; @@ -368,6 +370,8 @@ static void cpsw_rx_handler(void *token, int len, int status) skb->offload_fwd_mark = priv->offload_fwd_mark; skb_reserve(skb, headroom); skb_put(skb, len); + if (metasize) + skb_metadata_set(skb, metasize); skb->dev = ndev; if (status & CPDMA_RX_VLAN_ENCAP) cpsw_rx_vlan_encap(skb);