From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by mail.toke.dk (Postfix) with ESMTPS id C7B609FE2B0 for ; Sat, 15 Apr 2023 08:45:46 +0200 (CEST) Authentication-Results: mail.toke.dk; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=nvS9mbLb DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681541147; x=1713077147; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=P5PNsfQVnf7JGUSyHYyZ0/5wiiYeZCsFRVfR1e/0etg=; b=nvS9mbLbf9P6fKKgeCqEZaCDcxSIAG7QK5FJ1AZHB2WW1AJwFkMfhNOo NzcMH41UMkp+NevmdLPg1yNj3Fs7313GdzqOkKR89mmLLHjhfFdFahVH+ Y0UyfNqzgvH0YQWnJTEE2N/OImx8yzaqTiOQirZYX7vICHrNxe1H+mxKc iMXWdtdPR5d6XsC7iIwvhaZO2ygUojz2RPCyVebeGRkQd1RoXtjNrRsFv 2UWi5L6Kd1TllOWga/UomtH0dSGGbyH+g9jnz0EPfqPSXV9AMsLeKiIEd WSiiB4ZN+xQCSlQTixZfhXDH2Po2WBcIj+l6EF2hte3SA/yG/Tc8D9NZd w==; X-IronPort-AV: E=McAfee;i="6600,9927,10680"; a="343379276" X-IronPort-AV: E=Sophos;i="5.99,199,1677571200"; d="scan'208";a="343379276" 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 23:45:46 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10680"; a="754727543" X-IronPort-AV: E=Sophos;i="5.99,199,1677571200"; d="scan'208";a="754727543" Received: from p12ill20yoongsia.png.intel.com ([10.88.227.28]) by fmsmga008.fm.intel.com with ESMTP; 14 Apr 2023 23:45:40 -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 Date: Sat, 15 Apr 2023 14:45:01 +0800 Message-Id: <20230415064503.3225835-2-yoong.siang.song@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230415064503.3225835-1-yoong.siang.song@intel.com> References: <20230415064503.3225835-1-yoong.siang.song@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-ID-Hash: 63USQJP2M2Y6BZJ42PYT7GSOB3M3I7DG X-Message-ID-Hash: 63USQJP2M2Y6BZJ42PYT7GSOB3M3I7DG X-MailFrom: yoong.siang.song@intel.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header 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 X-Mailman-Version: 3.3.8 Precedence: list Subject: [xdp-hints] [PATCH net-next v6 1/3] net: stmmac: introduce wrapper for struct xdp_buff List-Id: XDP hardware hints design discussion Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Introduce struct stmmac_xdp_buff as a preparation to support XDP Rx metadata via kfuncs. Signed-off-by: Song Yoong Siang Reviewed-by: Jacob Keller Acked-by: Jesper Dangaard Brouer --- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 4 ++++ .../net/ethernet/stmicro/stmmac/stmmac_main.c | 18 +++++++++--------- 2 files changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 3d15e1e92e18..ac8ccf851708 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -92,6 +92,10 @@ struct stmmac_rx_buffer { dma_addr_t sec_addr; }; +struct stmmac_xdp_buff { + struct xdp_buff xdp; +}; + struct stmmac_rx_queue { u32 rx_count_frames; u32 queue_index; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index d7fcab057032..10b9f8912bb2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -5190,7 +5190,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) enum dma_data_direction dma_dir; unsigned int desc_size; struct sk_buff *skb = NULL; - struct xdp_buff xdp; + struct stmmac_xdp_buff ctx; int xdp_status = 0; int buf_sz; @@ -5311,17 +5311,17 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) dma_sync_single_for_cpu(priv->device, buf->addr, buf1_len, dma_dir); - xdp_init_buff(&xdp, buf_sz, &rx_q->xdp_rxq); - xdp_prepare_buff(&xdp, page_address(buf->page), + 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); - pre_len = xdp.data_end - xdp.data_hard_start - + pre_len = ctx.xdp.data_end - ctx.xdp.data_hard_start - buf->page_offset; - skb = stmmac_xdp_run_prog(priv, &xdp); + skb = stmmac_xdp_run_prog(priv, &ctx.xdp); /* Due xdp_adjust_tail: DMA sync for_device * cover max len CPU touch */ - sync_len = xdp.data_end - xdp.data_hard_start - + sync_len = ctx.xdp.data_end - ctx.xdp.data_hard_start - buf->page_offset; sync_len = max(sync_len, pre_len); @@ -5331,7 +5331,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) if (xdp_res & STMMAC_XDP_CONSUMED) { page_pool_put_page(rx_q->page_pool, - virt_to_head_page(xdp.data), + virt_to_head_page(ctx.xdp.data), sync_len, true); buf->page = NULL; priv->dev->stats.rx_dropped++; @@ -5359,7 +5359,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) if (!skb) { /* XDP program may expand or reduce tail */ - buf1_len = xdp.data_end - xdp.data; + buf1_len = ctx.xdp.data_end - ctx.xdp.data; skb = napi_alloc_skb(&ch->rx_napi, buf1_len); if (!skb) { @@ -5369,7 +5369,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue) } /* XDP program may adjust header */ - skb_copy_to_linear_data(skb, xdp.data, buf1_len); + skb_copy_to_linear_data(skb, ctx.xdp.data, buf1_len); skb_put(skb, buf1_len); /* Data payload copied into SKB, page ready for recycle */ -- 2.34.1