From patchwork Wed Nov 4 13:30:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ido Schimmel X-Patchwork-Id: 315653 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=-12.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 09B5FC4741F for ; Wed, 4 Nov 2020 13:31:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9725822243 for ; Wed, 4 Nov 2020 13:31:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729971AbgKDNbx (ORCPT ); Wed, 4 Nov 2020 08:31:53 -0500 Received: from out4-smtp.messagingengine.com ([66.111.4.28]:37725 "EHLO out4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730005AbgKDNbu (ORCPT ); Wed, 4 Nov 2020 08:31:50 -0500 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id CD8A45C005B; Wed, 4 Nov 2020 08:31:48 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Wed, 04 Nov 2020 08:31:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; bh=SXwxnZ5gvClpbbTiz5CzGoDSBqiCJdKCxk7o1mqeUj8=; b=r+lchLOy 1U8WyXc4Dc+lbb8UW4yFMOuWA20enErHfDqorobJeXuy12BEqnlP2T107FfwIgVT vj9hpik84YIYVxvSX8894f/tpBT4L+jxKsmF3PWVT1vB9Dn002EJMm+kDYqqoBZx ae9IkYcleTzS5itSzkD/MEq5FNY2djlm/Iml3ibYPs2sHyob/qX5vddHM0dwLbmV b1x6gqdgnz/HVq34oyDbczRQkMbBrqTX2TEKjD0nu1aL4xzqt2Bp3mwSNJuWNRU1 GbUGhHKlr5QtDElhOefWkqK6gGWyCeWf764NpEqhyiMUkMiqv83jwFFSjcKL2xkr MzDGY0smbfesyg== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedruddthedgheehucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekre dtredttdenucfhrhhomhepkfguohcuufgthhhimhhmvghluceoihguohhstghhsehiugho shgthhdrohhrgheqnecuggftrfgrthhtvghrnhepudetieevffffveelkeeljeffkefhke ehgfdtffethfelvdejgffghefgveejkefhnecukfhppeekgedrvddvledrudehvddrvdeh heenucevlhhushhtvghrufhiiigvpedvnecurfgrrhgrmhepmhgrihhlfhhrohhmpehiug hoshgthhesihguohhstghhrdhorhhg X-ME-Proxy: Received: from shredder.mtl.com (unknown [84.229.152.255]) by mail.messagingengine.com (Postfix) with ESMTPA id 68FE13064610; Wed, 4 Nov 2020 08:31:47 -0500 (EST) From: Ido Schimmel To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, dsahern@gmail.com, jiri@nvidia.com, mlxsw@nvidia.com, Ido Schimmel Subject: [PATCH net-next 06/18] nexthop: Allow setting "offload" and "trap" indications on nexthops Date: Wed, 4 Nov 2020 15:30:28 +0200 Message-Id: <20201104133040.1125369-7-idosch@idosch.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201104133040.1125369-1-idosch@idosch.org> References: <20201104133040.1125369-1-idosch@idosch.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Ido Schimmel Add a function that can be called by device drivers to set "offload" or "trap" indication on nexthops following nexthop notifications. Changes since RFC: * s/nexthop_hw_flags_set/nexthop_set_hw_flags/ Signed-off-by: Ido Schimmel --- include/net/nexthop.h | 1 + net/ipv4/nexthop.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/include/net/nexthop.h b/include/net/nexthop.h index 4a17b040b502..aa7ac12c35e2 100644 --- a/include/net/nexthop.h +++ b/include/net/nexthop.h @@ -145,6 +145,7 @@ struct nh_notifier_info { int register_nexthop_notifier(struct net *net, struct notifier_block *nb); int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb); +void nexthop_set_hw_flags(struct net *net, u32 id, bool offload, bool trap); /* caller is holding rcu or rtnl; no reference taken to nexthop */ struct nexthop *nexthop_find_by_id(struct net *net, u32 id); diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 1d66f2439063..d1a1600aee18 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -2081,6 +2081,27 @@ int unregister_nexthop_notifier(struct net *net, struct notifier_block *nb) } EXPORT_SYMBOL(unregister_nexthop_notifier); +void nexthop_set_hw_flags(struct net *net, u32 id, bool offload, bool trap) +{ + struct nexthop *nexthop; + + rcu_read_lock(); + + nexthop = nexthop_find_by_id(net, id); + if (!nexthop) + goto out; + + nexthop->nh_flags &= ~(RTNH_F_OFFLOAD | RTNH_F_TRAP); + if (offload) + nexthop->nh_flags |= RTNH_F_OFFLOAD; + if (trap) + nexthop->nh_flags |= RTNH_F_TRAP; + +out: + rcu_read_unlock(); +} +EXPORT_SYMBOL(nexthop_set_hw_flags); + static void __net_exit nexthop_net_exit(struct net *net) { rtnl_lock();