From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 555BF6FBB for ; Tue, 10 Jan 2023 18:32:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A8A9BC433EF; Tue, 10 Jan 2023 18:32:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1673375549; bh=kdTFdtCemNlpkUty4rb45Vj0kTluvL0/SeWUf8dKxS4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DIL1VKyZhdILndDw2ku4Uz1sCNxwWB+Y3m2HgLBTU9L71IXyUD+9320igeWZwxMZ0 BPCdSBxORNNkEqmGywvVhn4XuJEe4NZjHVJsXk9n2jrQhpM3D4G0wBXEcA6eOOn5T7 iyR/zqKWBBIGcJInp40Rmxg62jtmS18hJiJFvwKI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dragos Tatulea , Gal Pressman , Saeed Mahameed , Sasha Levin Subject: [PATCH 5.15 225/290] net/mlx5e: IPoIB, Dont allow CQE compression to be turned on by default Date: Tue, 10 Jan 2023 19:05:17 +0100 Message-Id: <20230110180039.781954561@linuxfoundation.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230110180031.620810905@linuxfoundation.org> References: <20230110180031.620810905@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Dragos Tatulea [ Upstream commit b12d581e83e3ae1080c32ab83f123005bd89a840 ] mlx5e_build_nic_params will turn CQE compression on if the hardware capability is enabled and the slow_pci_heuristic condition is detected. As IPoIB doesn't support CQE compression, make sure to disable the feature in the IPoIB profile init. Please note that the feature is not exposed to the user for IPoIB interfaces, so it can't be subsequently turned on. Fixes: b797a684b0dd ("net/mlx5e: Enable CQE compression when PCI is slower than link") Signed-off-by: Dragos Tatulea Reviewed-by: Gal Pressman Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c index cfde0a45b8b8..10940b8dc83e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c @@ -70,6 +70,10 @@ static void mlx5i_build_nic_params(struct mlx5_core_dev *mdev, params->packet_merge.type = MLX5E_PACKET_MERGE_NONE; params->hard_mtu = MLX5_IB_GRH_BYTES + MLX5_IPOIB_HARD_LEN; params->tunneled_offload_en = false; + + /* CQE compression is not supported for IPoIB */ + params->rx_cqe_compress_def = false; + MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def); } /* Called directly after IPoIB netdevice was created to initialize SW structs */ -- 2.35.1