From patchwork Sat Apr 11 12:09:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 228026 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 643BAC2BB85 for ; Sat, 11 Apr 2020 12:24:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3C7642063A for ; Sat, 11 Apr 2020 12:24:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586607883; bh=oISua2g845NhTWCtJpEUu7JMikhasYDSusp4347Vjzw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BRhM3ygic8zRgJVTlYK614p+khtpeCaqpEAxsb/0VTWDgApVaKgiZjDFqwvd+qwaR 3RpsTOEaLw2LHPBXhPJDDrityBkVEFdveTx4GCYSRsOD60VGQmjLSZfpebzw4w2cwr wkA8kUve8t+Fa8mXEF92gvIFi9mQIDf9cNRLKUoU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728458AbgDKMRi (ORCPT ); Sat, 11 Apr 2020 08:17:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:52352 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728455AbgDKMRi (ORCPT ); Sat, 11 Apr 2020 08:17:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4687920787; Sat, 11 Apr 2020 12:17:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586607457; bh=oISua2g845NhTWCtJpEUu7JMikhasYDSusp4347Vjzw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QEjDfF4UP+R5VS60vCYTEG8omzsrvNU7f6CO13goHdwhf5j78XAQTsAW/WCU3Egwa 929Sh4VnJn04cL4MX3dZFGFXGqWqZ8sxrrixU2lG4br7/A4p8qLAynSUZeHZYMWkRE xNOEznRgIN8wU2/gfo52SFsGcnNcypsTSp59d23s= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alex Vesker , Ariel Levkovich , Leon Romanovsky , Jason Gunthorpe Subject: [PATCH 5.4 27/41] IB/mlx5: Replace tunnel mpls capability bits for tunnel_offloads Date: Sat, 11 Apr 2020 14:09:36 +0200 Message-Id: <20200411115506.023375327@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200411115504.124035693@linuxfoundation.org> References: <20200411115504.124035693@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Alex Vesker commit 41e684ef3f37ce6e5eac3fb5b9c7c1853f4b0447 upstream. Until now the flex parser capability was used in ib_query_device() to indicate tunnel_offloads_caps support for mpls_over_gre/mpls_over_udp. Newer devices and firmware will have configurations with the flexparser but without mpls support. Testing for the flex parser capability was a mistake, the tunnel_stateless capability was intended for detecting mpls and was introduced at the same time as the flex parser capability. Otherwise userspace will be incorrectly informed that a future device supports MPLS when it does not. Link: https://lore.kernel.org/r/20200305123841.196086-1-leon@kernel.org Cc: # 4.17 Fixes: e818e255a58d ("IB/mlx5: Expose MPLS related tunneling offloads") Signed-off-by: Alex Vesker Reviewed-by: Ariel Levkovich Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/mlx5/main.c | 6 ++---- include/linux/mlx5/mlx5_ifc.h | 6 +++++- 2 files changed, 7 insertions(+), 5 deletions(-) --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1181,12 +1181,10 @@ static int mlx5_ib_query_device(struct i if (MLX5_CAP_ETH(mdev, tunnel_stateless_gre)) resp.tunnel_offloads_caps |= MLX5_IB_TUNNELED_OFFLOADS_GRE; - if (MLX5_CAP_GEN(mdev, flex_parser_protocols) & - MLX5_FLEX_PROTO_CW_MPLS_GRE) + if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_gre)) resp.tunnel_offloads_caps |= MLX5_IB_TUNNELED_OFFLOADS_MPLS_GRE; - if (MLX5_CAP_GEN(mdev, flex_parser_protocols) & - MLX5_FLEX_PROTO_CW_MPLS_UDP) + if (MLX5_CAP_ETH(mdev, tunnel_stateless_mpls_over_udp)) resp.tunnel_offloads_caps |= MLX5_IB_TUNNELED_OFFLOADS_MPLS_UDP; } --- a/include/linux/mlx5/mlx5_ifc.h +++ b/include/linux/mlx5/mlx5_ifc.h @@ -857,7 +857,11 @@ struct mlx5_ifc_per_protocol_networking_ u8 swp_csum[0x1]; u8 swp_lso[0x1]; u8 cqe_checksum_full[0x1]; - u8 reserved_at_24[0x5]; + u8 tunnel_stateless_geneve_tx[0x1]; + u8 tunnel_stateless_mpls_over_udp[0x1]; + u8 tunnel_stateless_mpls_over_gre[0x1]; + u8 tunnel_stateless_vxlan_gpe[0x1]; + u8 tunnel_stateless_ipv4_over_vxlan[0x1]; u8 tunnel_stateless_ip_over_ip[0x1]; u8 reserved_at_2a[0x6]; u8 max_vxlan_udp_ports[0x8];