From patchwork Mon May 9 22:21:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Dumazet X-Patchwork-Id: 12844129 X-Patchwork-Delegate: kuba@kernel.org 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B62AAC433F5 for ; Mon, 9 May 2022 22:22:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231533AbiEIW0U (ORCPT ); Mon, 9 May 2022 18:26:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47282 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231534AbiEIW0C (ORCPT ); Mon, 9 May 2022 18:26:02 -0400 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC60516D4BC for ; Mon, 9 May 2022 15:22:03 -0700 (PDT) Received: by mail-pf1-x436.google.com with SMTP id i24so13397368pfa.7 for ; Mon, 09 May 2022 15:22:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Kdkb9iJD2Cf92mUwdfbtRZPbJe3zJ/RvlmfMXNxr0ow=; b=kRTHvGCboQYngHsdQP6mQCJbg/UjmXU3+TwS3gaqB9Wx+k2J9lVYZ/acWt/C+mlIov hfzVNruxNoyFknJsgsVEaiym7I/sgeGetUv7xdRunlpKs2hfEvNoXWU7sHdbEVb9vkYV parZ3equy+XH6izho38hqX1O8QA96GT/dkOFe7pBItOhj+txXHHcPndM08mFPNy2yOAT XjVoK/V8yqOKDxPZdZ60vhN5Be4GwBX+yYQyCSAgZJS/us05UYAJGg0Xqbq3lz2wcOg3 dGBS+nouzR6QXBXGoelSXq+e+MvcfdGOgcjH7lG5zbZG7zwhAOfUSBZGb06JOGYU752c kKWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Kdkb9iJD2Cf92mUwdfbtRZPbJe3zJ/RvlmfMXNxr0ow=; b=L1HdQ/hCfLkpQhFqvZXS//x2k3X9vPHhhjuI4ZJHpZi04bQuXT0ZruAqdii11SjuY2 cJHzv+QX8vMg+XVZcUrjc5hLlLd+kHHFwwSBw7YlK8TKLk8zNZE+2bcEHZ/GD48w5s9X C37ED7DyRrDPqAwQHetIvjCT32qVSLw1MB0vMxBeK9N9V1CXyOgUY/Yv7Zu3Th+y6hXn vbU0uq0bTXkDEAsRhWb+3qCBkcG73cW6wofhPfKc/Ree53+ILLCS/FjH6b01ZsmTP1SE oByE02gVfs+LZYlMALCFBsdN6oVyp6xYVmVj9VAjtKc+yKqYc63n98mQj75aNj/wO40g tWsA== X-Gm-Message-State: AOAM531B6uMPWZ+BxpiuxISxwMPBweecl6BzNkqIZbd+uRoZmpgvUN9v ib1WDc3c+6IxM7zdsI/eY4I= X-Google-Smtp-Source: ABdhPJz9CjwulDNrdVyzhUGkjeHsw4yI0syQcCHAWlqvp9X2f6imGnGANZcufTq4Y3MfQYx9jiCJMg== X-Received: by 2002:a62:cec4:0:b0:50d:9030:722c with SMTP id y187-20020a62cec4000000b0050d9030722cmr17740329pfg.41.1652134923283; Mon, 09 May 2022 15:22:03 -0700 (PDT) Received: from edumazet1.svl.corp.google.com ([2620:15c:2c4:201:5d30:4e79:203f:a909]) by smtp.gmail.com with ESMTPSA id v11-20020a170902f0cb00b0015e8d4eb1efsm395823pla.57.2022.05.09.15.22.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 May 2022 15:22:02 -0700 (PDT) From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: netdev , Alexander Duyck , Coco Li , Eric Dumazet , Eric Dumazet Subject: [PATCH v5 net-next 05/13] ipv6: add struct hop_jumbo_hdr definition Date: Mon, 9 May 2022 15:21:41 -0700 Message-Id: <20220509222149.1763877-6-eric.dumazet@gmail.com> X-Mailer: git-send-email 2.36.0.512.ge40c2bad7a-goog In-Reply-To: <20220509222149.1763877-1-eric.dumazet@gmail.com> References: <20220509222149.1763877-1-eric.dumazet@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Eric Dumazet Following patches will need to add and remove local IPv6 jumbogram options to enable BIG TCP. Signed-off-by: Eric Dumazet --- include/net/ipv6.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 213612f1680c7c39f4c07f0c05b4e6cf34a7878e..63d019953c47ea03d3b723a58c25e83c249489a9 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -151,6 +151,17 @@ struct frag_hdr { __be32 identification; }; +/* + * Jumbo payload option, as described in RFC 2675 2. + */ +struct hop_jumbo_hdr { + u8 nexthdr; + u8 hdrlen; + u8 tlv_type; /* IPV6_TLV_JUMBO, 0xC2 */ + u8 tlv_len; /* 4 */ + __be32 jumbo_payload_len; +}; + #define IP6_MF 0x0001 #define IP6_OFFSET 0xFFF8