From patchwork Mon Mar 29 07:58:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 412448 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=-19.0 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, 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 A7451C433E2 for ; Mon, 29 Mar 2021 08:40:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 815F361934 for ; Mon, 29 Mar 2021 08:40:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233215AbhC2Ij6 (ORCPT ); Mon, 29 Mar 2021 04:39:58 -0400 Received: from mail.kernel.org ([198.145.29.99]:33134 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232058AbhC2Ii6 (ORCPT ); Mon, 29 Mar 2021 04:38:58 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1D7B561581; Mon, 29 Mar 2021 08:38:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617007137; bh=LatsfoIWkuAEW3l1DdWNftvFA8jWNeJrMMS4hSV3nMs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r1IjJsqRBavDs6Q2ZmZU5ZOMc3jc2jdSfsOv3uiPErxs86L7lgmdxSRNuXu7sU7u4 JNQSE6Y9UYcX0HRvHBueXXq+1+hxDNh2wm8rlN8e270/baNVUPHGuaufI6iePgaH3E rCCSVWCIvbUZVp4c/Ra+eE4Fc/s5leMfxrK1Z7uY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alaa Hleihel , Roi Dayan , Saeed Mahameed , Sasha Levin Subject: [PATCH 5.11 200/254] net/mlx5e: Allow to match on MPLS parameters only for MPLS over UDP Date: Mon, 29 Mar 2021 09:58:36 +0200 Message-Id: <20210329075639.671172004@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210329075633.135869143@linuxfoundation.org> References: <20210329075633.135869143@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Alaa Hleihel [ Upstream commit 7d6c86e3ccb5ceea767df5c7a9a17cdfccd3df9a ] Currently, we support hardware offload only for MPLS over UDP. However, rules matching on MPLS parameters are now wrongly offloaded for regular MPLS, without actually taking the parameters into consideration when doing the offload. Fix it by rejecting such unsupported rules. Fixes: 72046a91d134 ("net/mlx5e: Allow to match on mpls parameters") Signed-off-by: Alaa Hleihel Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index e9b7da05f14a..95cbefed1b32 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -2595,6 +2595,16 @@ static int __parse_cls_flower(struct mlx5e_priv *priv, *match_level = MLX5_MATCH_L4; } + /* Currenlty supported only for MPLS over UDP */ + if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_MPLS) && + !netif_is_bareudp(filter_dev)) { + NL_SET_ERR_MSG_MOD(extack, + "Matching on MPLS is supported only for MPLS over UDP"); + netdev_err(priv->netdev, + "Matching on MPLS is supported only for MPLS over UDP\n"); + return -EOPNOTSUPP; + } + return 0; }