From patchwork Thu Mar 25 17:24:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Abeni X-Patchwork-Id: 12164655 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=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 B61D8C433E1 for ; Thu, 25 Mar 2021 17:25:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8954861A07 for ; Thu, 25 Mar 2021 17:25:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230032AbhCYRZR (ORCPT ); Thu, 25 Mar 2021 13:25:17 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:34611 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230071AbhCYRYr (ORCPT ); Thu, 25 Mar 2021 13:24:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1616693087; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DrkupouP2/Zi8sGjk5iYRUAPxI+cW/yKix3wozOPOwY=; b=PoqQRF3R2vCPdu34npePuVnpfVidmkWJkTtEPzz8jGHG+xNDnu+USkIjO1RUhKFtbvFCcb Gvl2rVMKeGpdFiPfg/ufhc9GN1RAMJfKuq3PWc1/VmjOF9DsCfgV8gl4Wk+8DqE4d4zrkT 1tDJV4xl2NWZCB9G7sF1mCiKd7u1Vn8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-573-eIlyTj5kOeekSAYlUSWXHA-1; Thu, 25 Mar 2021 13:24:45 -0400 X-MC-Unique: eIlyTj5kOeekSAYlUSWXHA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 6AB2757210; Thu, 25 Mar 2021 17:24:31 +0000 (UTC) Received: from gerbillo.redhat.com (ovpn-113-211.ams2.redhat.com [10.36.113.211]) by smtp.corp.redhat.com (Postfix) with ESMTP id C051C76E37; Thu, 25 Mar 2021 17:24:29 +0000 (UTC) From: Paolo Abeni To: netdev@vger.kernel.org Cc: "David S. Miller" , Jakub Kicinski , Steffen Klassert , Willem de Bruijn , Alexander Lobakin Subject: [PATCH net-next v2 5/8] vxlan: allow L4 GRO passthrough Date: Thu, 25 Mar 2021 18:24:04 +0100 Message-Id: <1a93521d24f50375f78f217d73ec5182773b580f.1616692794.git.pabeni@redhat.com> In-Reply-To: References: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org When passing up an UDP GSO packet with L4 aggregation, there is no need to segment it at the vxlan level. We can propagate the packet untouched and let it be segmented later, if needed. Introduce an helper to allow let the UDP socket to accept any L4 aggregation and use it in the vxlan driver. v1 -> v2: - updated to use the newly introduced UDP socket 'accept*' fields Signed-off-by: Paolo Abeni --- drivers/net/vxlan.c | 1 + include/linux/udp.h | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 7665817f3cb61..39ee1300cdd9d 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -3484,6 +3484,7 @@ static struct socket *vxlan_create_sock(struct net *net, bool ipv6, if (err < 0) return ERR_PTR(err); + udp_allow_gso(sock->sk); return sock; } diff --git a/include/linux/udp.h b/include/linux/udp.h index ae58ff3b6b5b8..ae66dadd85434 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -145,6 +145,12 @@ static inline bool udp_unexpected_gso(struct sock *sk, struct sk_buff *skb) return false; } +static inline void udp_allow_gso(struct sock *sk) +{ + udp_sk(sk)->accept_udp_l4 = 1; + udp_sk(sk)->accept_udp_fraglist = 1; +} + #define udp_portaddr_for_each_entry(__sk, list) \ hlist_for_each_entry(__sk, list, __sk_common.skc_portaddr_node)