[{"id":3687274,"web_url":"http://patchwork.ozlabs.org/comment/3687274/","msgid":"","list_archive_url":null,"date":"2026-05-06T17:27:13","subject":"Re: [PATCH nf-next 0/4] Add IPv4 over IPv6 flowtable SW acceleration","submitter":{"id":76007,"url":"http://patchwork.ozlabs.org/api/people/76007/","name":"Lorenzo Bianconi","email":"lorenzo@kernel.org"},"content":"> Similar to IPIP and IP6I6 tunnels, introduce sw acceleration for IPv4 over\n> IPv6 tunnels in the netfilter flowtable infrastructure.\n\nPlease drop this revision, I spotted a bug in MTU configuration in\nnf_flow_offload_forward(). I will post v2 fixing the issue and adding\nSIT support.\n\nRegards,\nLorenzo\n\n> \n> ---\n> Lorenzo Bianconi (4):\n> net: netfilter: Add ether_type to net_device_path_ctx\n> net: netfilter: Add encap_proto to flow_offload_tunnel\n> net: netfilter: Add IPv4 over IPv6 tunnel flowtable acceleration\n> selftests: netfilter: nft_flowtable.sh: Add IPv4 over IPv6 flowtable selftest\n> \n> drivers/net/ethernet/airoha/airoha_ppe.c | 14 ++-\n> drivers/net/ethernet/mediatek/mtk_ppe_offload.c | 13 ++-\n> include/linux/netdevice.h | 5 +-\n> include/net/netfilter/nf_flow_table.h | 1 +\n> net/core/dev.c | 6 +-\n> net/ipv4/ipip.c | 1 +\n> net/ipv6/ip6_tunnel.c | 6 +-\n> net/netfilter/nf_flow_table_core.c | 14 ++-\n> net/netfilter/nf_flow_table_ip.c | 129 ++++++++++++++++-----\n> net/netfilter/nf_flow_table_path.c | 16 +--\n> .../selftests/net/netfilter/nft_flowtable.sh | 26 +++++\n> 11 files changed, 174 insertions(+), 57 deletions(-)\n> ---\n> base-commit: c1e5127b577c6b88fa48e532616932ae978528d5\n> change-id: 20260505-b4-flowtable-sw-accel-ip6ip-7101034cd147\n> \n> Best regards,\n> -- \n> Lorenzo Bianconi \n>","headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","netfilter-devel@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=LsoZapBs;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c0a:e001:db::12fc:5321; helo=sea.lore.kernel.org;\n envelope-from=netfilter-devel+bounces-12467-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"LsoZapBs\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201"],"Received":["from sea.lore.kernel.org (sea.lore.kernel.org\n [IPv6:2600:3c0a:e001:db::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g9j4m59cKz1yJq\n\tfor ; Thu, 07 May 2026 03:27:36 +1000 (AEST)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sea.lore.kernel.org (Postfix) with ESMTP id 240E4302451F\n\tfor ; Wed, 6 May 2026 17:27:19 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 0A3A44B8DED;\n\tWed, 6 May 2026 17:27:18 +0000 (UTC)","from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 19A8930595B;\n\tWed, 6 May 2026 17:27:15 +0000 (UTC)","by smtp.kernel.org (Postfix) with ESMTPSA id 476CBC2BCB0;\n\tWed, 6 May 2026 17:27:15 +0000 (UTC)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1778088436; cv=none;\n b=H9ZuIZjmvSx/0Ne0K0wDwZapW7RLE5j0Ombfx5v2Qn5cjy+65g3pLV4cKeIER7w0QTYjEwaGbOOi9iHGOmeetAS7EJE9JS1nZk3WRdDb8Q3WuKdy68Qkdr97Fh83NmzNCkt3OYXwx0Gzj0SzCWG8bOfkQXeEOvBOyxLgUTYRPsA=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1778088436; c=relaxed/simple;\n\tbh=HmDSB8RGwVj0i6+IcLEKJKC3r5SqoF2IF/ST6ULFU5k=;\n\th=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:\n\t Content-Type:Content-Disposition:In-Reply-To;\n b=qzE50hlTUwwHiiUHA1BaopqHBIZpq5++QqnJfzadlsUgUJPe12Ax08v8zx+wDPkYxbJZT/VRVDA/nGzUjKJdXcVxEH4DBHsQzRkuuRwo+7Jn/nlunfWKxeIoxLEsnhyra+NrNklPyyW3IQXg+O+oJXcVnF2bso8NRql4GkDXTnE=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=LsoZapBs; arc=none smtp.client-ip=10.30.226.201","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1778088435;\n\tbh=HmDSB8RGwVj0i6+IcLEKJKC3r5SqoF2IF/ST6ULFU5k=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=LsoZapBs6yowkuRKg3FX+deiQgEzzTuVpKSya3Hw5fH4WGu+0t8FG7x973zAJvwLF\n\t uW96m0AIo55ILZk0w0aZzRmUvKVPJtzU0EIuooGlelpMH8pJiJgpC1MNmnE3x3nIB3\n\t Hy02Z9T1nV3l6yxG2pmg30zRB4PymXqWVkakE0uvj0APBkKmoDfExIDpbJ5/hn3Ndg\n\t 9VLTh7QGvc07UgZglJOPiuVzr57E4UFs19x1zGmp/Ly3TUmii020ROS9/BWTCQT3iE\n\t xagDUUYZj3GXds47tcDWufFyuz8Zq/hibafbcyBswon8WIA3wk+NTPmINtJzRCpyG7\n\t sRX2DVPbukHgQ==","Date":"Wed, 6 May 2026 19:27:13 +0200","From":"Lorenzo Bianconi ","To":"Andrew Lunn ,\n\t\"David S. Miller\" ,\n\tEric Dumazet ,\n\tJakub Kicinski , Paolo Abeni ,\n\tFelix Fietkau ,\n\tMatthias Brugger ,\n\tAngeloGioacchino Del Regno ,\n\tSimon Horman , David Ahern ,\n\tIdo Schimmel ,\n\tPablo Neira Ayuso ,\n\tFlorian Westphal , Phil Sutter ,\n\tShuah Khan ","Cc":"linux-arm-kernel@lists.infradead.org,\n\tlinux-mediatek@lists.infradead.org, netdev@vger.kernel.org,\n\tnetfilter-devel@vger.kernel.org, coreteam@netfilter.org,\n\tlinux-kselftest@vger.kernel.org","Subject":"Re: [PATCH nf-next 0/4] Add IPv4 over IPv6 flowtable SW acceleration","Message-ID":"","References":"\n <20260505-b4-flowtable-sw-accel-ip6ip-v1-0-9ac39ccc9ea9@kernel.org>","Precedence":"bulk","X-Mailing-List":"netfilter-devel@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"multipart/signed; micalg=pgp-sha512;\n\tprotocol=\"application/pgp-signature\"; boundary=\"dBWX7q7eS4V4GZda\"","Content-Disposition":"inline","In-Reply-To":"\n <20260505-b4-flowtable-sw-accel-ip6ip-v1-0-9ac39ccc9ea9@kernel.org>"}}]