From patchwork Fri Apr 14 05:26:49 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: 13210952 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 A8E42C77B70 for ; Fri, 14 Apr 2023 05:28:40 +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=47osVyF/+nNwM/p60eqk2cd9/UWU/00tS0gSiZSny7s=; b=Z4Mynq9zVSflKD cEdbO+bF3hH55xGEmZ9O4iyqTx8lpiPLAEizrrimg6G2H8MYUSIC2ha/kVyKtXEdRedCf1hwF0iLZ KOGtc40OYzruQ5/PyOLTIDfixwoojM3X2yEuuc4EBcvWo7uP6Y9f1fdWdoRXJy296ihgupsDv4ZCL 3Fd55d7shlbBjM2Q7rVmhxTYh7RJDQi0m3Gpx+W9teS3LAsiIZl/jwyvjDnggzlf7BKoMhHNJmmyv k+s96fQvxFa63hXT7EwkNFaASDp2PqqLXhRDmYoAl1NN93rCQPfZsakTVLCCgnPcE1GBNXEEqZZdW Pf6MhG6AT9C44lfTxJtQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pnByM-008MZo-1x; Fri, 14 Apr 2023 05:27:46 +0000 Received: from mga02.intel.com ([134.134.136.20]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pnByK-008MZJ-0h for linux-arm-kernel@lists.infradead.org; Fri, 14 Apr 2023 05:27:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1681450064; x=1712986064; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ziQXhtSDLOyDh87z6Q9HwD28NTENy86Bf2hXO5RpLMU=; b=MkT6MhPGdrulpXmEp98Dd8amfA/u5P/fGpC0eceO7DkruMLirXnjSxJs 822CubanKQH1lOxHRD9nTikg+XHAKmqZNQfftVnM/d3Ttzv3/D5yJuKYY BkpgdRYKBqumwCQNHxA2qgBupyBYiUAfqr3t9pKo7r/3R0anefAfhwuKo nxnSQzJeu8bLh2+PI//e1p4wxvyA07BTL1HiOykUtHhdtLbsaxWKGBlrW ymyL9fmR7OYkwx26PIeypF1jUmJ3qjtEO0snQoiAD5oc8aHgnv89r1YjZ UDD7wX/unZOQZX7bKTdMl5lsz4E3AQCgwCtBTd6gRw7ZR18c91V0GzS12 A==; X-IronPort-AV: E=McAfee;i="6600,9927,10679"; a="333152700" X-IronPort-AV: E=Sophos;i="5.99,195,1677571200"; d="scan'208";a="333152700" 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 22:27:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10679"; a="692234146" X-IronPort-AV: E=Sophos;i="5.99,195,1677571200"; d="scan'208";a="692234146" Received: from p12ill20yoongsia.png.intel.com ([10.88.227.28]) by fmsmga007.fm.intel.com with ESMTP; 13 Apr 2023 22:27:36 -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 1/3] net: stmmac: introduce wrapper for struct xdp_buff Date: Fri, 14 Apr 2023 13:26:49 +0800 Message-Id: <20230414052651.1871424-2-yoong.siang.song@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230414052651.1871424-1-yoong.siang.song@intel.com> References: <20230414052651.1871424-1-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-20230413_222744_344402_DD566A5A X-CRM114-Status: GOOD ( 13.16 ) 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 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 */