From patchwork Sat Jan 16 06:13:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xin Long X-Patchwork-Id: 365411 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64BE5C4332B for ; Sat, 16 Jan 2021 06:15:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4012A23AA9 for ; Sat, 16 Jan 2021 06:15:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726669AbhAPGPD (ORCPT ); Sat, 16 Jan 2021 01:15:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725781AbhAPGPC (ORCPT ); Sat, 16 Jan 2021 01:15:02 -0500 Received: from mail-pf1-x42d.google.com (mail-pf1-x42d.google.com [IPv6:2607:f8b0:4864:20::42d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9777AC061795; Fri, 15 Jan 2021 22:14:22 -0800 (PST) Received: by mail-pf1-x42d.google.com with SMTP id h10so6888868pfo.9; Fri, 15 Jan 2021 22:14:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=V2nEP27oGTcNy8IrU1fSA3OjNH51LnvWbCcr7tSh5c4=; b=bGjvKnbY+JV9g1sz/zHa0oU2w2C0idy+1+ZliPwg8xRc2aJP+MnrANHVyu8X0UT0hN J5M29sLWMEIbCec47kB7sRD6NLB6iUkAyaLFwEfpmsb+EY0h5EeV37f8LZsZRLwZR68y hPtUhSQqdGyT37M0dOr5Myagv/IUC+0js7TnMF7TDuib5eOhnhKRwWy3mzRb6GHdaLz7 ZuE2C66mwjmtfDHwIXi6ocUZeHenQkWUFB86jdvB/xVW+sikj5LDQGEwuuzMjQNZ4WMO zgTETYT3JmNkoADYLl1+AruRau4yYTgjzw+f4k7rDejFXcjutW8xELStSBFH42tW+M73 TL2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=V2nEP27oGTcNy8IrU1fSA3OjNH51LnvWbCcr7tSh5c4=; b=rjngdJtYphudYiNpVsxfZt07bnpz2gCC+QJbufXe3DdTeZ328r+eJJtFBmH3kwwNxh H5vM8aTBZaC75P5i6HwOmldXUpuU0i3xHhW3/NblrRfPkK9PZZ4HNaetSwVDV9y/dxaf U14U9rH//do1WTd1vbzbZZy04lOQS7jpxMxx3CPVnbxxtwp6YRSIoiSQWtkXjELuYKOv ThmAPotSWNBQAyNvEzFtC9eBFBV/bgrRa9ZXrOx3sf0Tgz6QO/a9qWoYxzFJOC0cS6gK 9YcEiBpfTxxa71dwujOOEpRCgQVm2wBcfYudzmRd+K+TcAnhdvxGVxCatl9HeLhw5gXV k2pQ== X-Gm-Message-State: AOAM530dgylQ2ZcOHq3DJdGtyKNnNivhlniseViqqQAbzNJgt39TB8v2 /Ov62QwZe/pQ6mww5IM+TKXy4ok4RFsC7g== X-Google-Smtp-Source: ABdhPJyyy42brQiNKCwn9At6xMddGS+824+a+h4kd+1mpMebf24dzNCMMmkQFeKXtYh5D0bHp7U+IA== X-Received: by 2002:a63:1110:: with SMTP id g16mr16274126pgl.357.1610777661982; Fri, 15 Jan 2021 22:14:21 -0800 (PST) Received: from localhost ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id f24sm9447968pjj.5.2021.01.15.22.14.20 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 15 Jan 2021 22:14:21 -0800 (PST) From: Xin Long To: network dev , linux-sctp@vger.kernel.org Cc: Marcelo Ricardo Leitner , Neil Horman , davem@davemloft.net, Jakub Kicinski , Alexander Duyck , Jesse Brandeburg , Tony Nguyen , intel-wired-lan@lists.osuosl.org Subject: [PATCH net-next 4/6] net: igc: use skb_csum_is_sctp instead of protocol check Date: Sat, 16 Jan 2021 14:13:40 +0800 Message-Id: <7b4d84fe32d588884fcd75c2f6f84eb8cd052622.1610777159.git.lucien.xin@gmail.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: References: <34c9f5b8c31610687925d9db1f151d5bc87deba7.1610777159.git.lucien.xin@gmail.com> In-Reply-To: References: Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Using skb_csum_is_sctp is a easier way to validate it's a SCTP CRC checksum offload packet, and yet it also makes igc support SCTP CRC checksum offload for UDP and GRE encapped packets, just as it does in igb driver. Signed-off-by: Xin Long Reviewed-by: Alexander Duyck --- drivers/net/ethernet/intel/igc/igc_main.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c index afd6a62..43aec42 100644 --- a/drivers/net/ethernet/intel/igc/igc_main.c +++ b/drivers/net/ethernet/intel/igc/igc_main.c @@ -949,15 +949,6 @@ static void igc_tx_ctxtdesc(struct igc_ring *tx_ring, } } -static inline bool igc_ipv6_csum_is_sctp(struct sk_buff *skb) -{ - unsigned int offset = 0; - - ipv6_find_hdr(skb, &offset, IPPROTO_SCTP, NULL, NULL); - - return offset == skb_checksum_start_offset(skb); -} - static void igc_tx_csum(struct igc_ring *tx_ring, struct igc_tx_buffer *first) { struct sk_buff *skb = first->skb; @@ -980,10 +971,7 @@ static void igc_tx_csum(struct igc_ring *tx_ring, struct igc_tx_buffer *first) break; case offsetof(struct sctphdr, checksum): /* validate that this is actually an SCTP request */ - if ((first->protocol == htons(ETH_P_IP) && - (ip_hdr(skb)->protocol == IPPROTO_SCTP)) || - (first->protocol == htons(ETH_P_IPV6) && - igc_ipv6_csum_is_sctp(skb))) { + if (skb_csum_is_sctp(skb)) { type_tucmd = IGC_ADVTXD_TUCMD_L4T_SCTP; break; }