From patchwork Fri Jan 22 18:19:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Lobakin X-Patchwork-Id: 12040301 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 X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 D55F4C07EBC for ; Fri, 22 Jan 2021 19:17:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B8D8023AC8 for ; Fri, 22 Jan 2021 19:17:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729762AbhAVSlC (ORCPT ); Fri, 22 Jan 2021 13:41:02 -0500 Received: from mail-40131.protonmail.ch ([185.70.40.131]:51381 "EHLO mail-40131.protonmail.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729034AbhAVSVA (ORCPT ); Fri, 22 Jan 2021 13:21:00 -0500 Date: Fri, 22 Jan 2021 18:19:48 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pm.me; s=protonmail; t=1611339592; bh=ZSWUd1j5nvzNHtj2fSy/5cVq2S7UqJlndcG8EsavUw8=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=f/6gnqOurPgFa/tJuMScK8/V/wtpQ63IoM8UAXSJFBqb7g1IfkNni+K0GZhcT0eXv rDBI3V9/JbOQJ/TFMmdXNmstQDS015ru+vHaoks7x43Ba0srDZRXW1RjIFXQ5HkazP xg6rgDuUGW2ffxj3b1LU0hk8rA+4am4f1Zq1ucZqXyTbBRJepj+zn3pqFLcQW3SH8U VuDwnOEd9Gl1Bm74c6OwqxKCQu+vyex1msS+ZLKzP8jsnA81Dqw0oUKSY3dt83IYVu KLGvZdXRsmzmlnpW6Rxs7rP6HUm85fDgCAhRICOWijQpwNsSnOyQjt8fkTYJeDhCo0 yR9k63ltrZAYQ== To: "David S. Miller" , Jakub Kicinski From: Alexander Lobakin Cc: Hideaki YOSHIFUJI , Willem de Bruijn , Steffen Klassert , Alexander Duyck , Paolo Abeni , Alexander Lobakin , Igor Russkikh , Mauro Carvalho Chehab , Miaohe Lin , Antoine Tenart , Michal Kubecek , Andrew Lunn , Meir Lichtinger , Aya Levin , Florian Fainelli , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Reply-To: Alexander Lobakin Subject: [PATCH v4 net-next 1/2] net: introduce a netdev feature for UDP GRO forwarding Message-ID: <20210122181909.36340-2-alobakin@pm.me> In-Reply-To: <20210122181909.36340-1-alobakin@pm.me> References: <20210122181909.36340-1-alobakin@pm.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Introduce a new netdev feature, NETIF_F_GRO_UDP_FWD, to allow user to turn UDP GRO on and off for forwarding. Defaults to off to not change current datapath. Suggested-by: Paolo Abeni Signed-off-by: Alexander Lobakin --- include/linux/netdev_features.h | 4 +++- net/ethtool/common.c | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 934de56644e7..c06d6aaba9df 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -84,6 +84,7 @@ enum { NETIF_F_GRO_FRAGLIST_BIT, /* Fraglist GRO */ NETIF_F_HW_MACSEC_BIT, /* Offload MACsec operations */ + NETIF_F_GRO_UDP_FWD_BIT, /* Allow UDP GRO for forwarding */ /* * Add your fresh new feature above and remember to update @@ -157,6 +158,7 @@ enum { #define NETIF_F_GRO_FRAGLIST __NETIF_F(GRO_FRAGLIST) #define NETIF_F_GSO_FRAGLIST __NETIF_F(GSO_FRAGLIST) #define NETIF_F_HW_MACSEC __NETIF_F(HW_MACSEC) +#define NETIF_F_GRO_UDP_FWD __NETIF_F(GRO_UDP_FWD) /* Finds the next feature with the highest number of the range of start till 0. */ @@ -234,7 +236,7 @@ static inline int find_next_netdev_feature(u64 feature, unsigned long start) #define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO) /* Changeable features with no special hardware requirements that defaults to off. */ -#define NETIF_F_SOFT_FEATURES_OFF NETIF_F_GRO_FRAGLIST +#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_FRAGLIST | NETIF_F_GRO_UDP_FWD) #define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \ NETIF_F_HW_VLAN_CTAG_RX | \ diff --git a/net/ethtool/common.c b/net/ethtool/common.c index 24036e3055a1..181220101a6e 100644 --- a/net/ethtool/common.c +++ b/net/ethtool/common.c @@ -68,6 +68,7 @@ const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = { [NETIF_F_HW_TLS_RX_BIT] = "tls-hw-rx-offload", [NETIF_F_GRO_FRAGLIST_BIT] = "rx-gro-list", [NETIF_F_HW_MACSEC_BIT] = "macsec-hw-offload", + [NETIF_F_GRO_UDP_FWD_BIT] = "rx-udp-gro-forwarding", }; const char