From patchwork Tue Sep 7 21:24:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saeed Mahameed X-Patchwork-Id: 12479377 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 07EAFC433FE for ; Tue, 7 Sep 2021 21:24:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E41E7610C9 for ; Tue, 7 Sep 2021 21:24:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348375AbhIGVZt (ORCPT ); Tue, 7 Sep 2021 17:25:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:37696 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347975AbhIGVZh (ORCPT ); Tue, 7 Sep 2021 17:25:37 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id C302161102; Tue, 7 Sep 2021 21:24:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1631049871; bh=Jwk1LNzAVlL/9CyoU3tfZPH2fIplD/6bGF2mPYtfIWs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KEMeUjtwTuLJ6r6nf9p63fl0+Cvb2y8R4H9/a4ssbloHoUP6FZerUw8U8U6asAypp clVUM+Z7h1IeecYjdpmnf0JIlw/nxAnViu6SBOVnugZMv6XEpXa1GCDox9FD91MwHh R2PtzJSBQdIfvdnOMm6WhNefClSaF6SqKxDg+HfYsev/sTxpyVbX1Ltm/5m7vFI065 rvXAfCg6eQB4Po9h+cTshWkknYnyVyqHYQYmeFe920hR7tPl78lRov3Dzr+Aiqajz5 8saG4iIUb5CxLqsjCb+EXFr9tNhlHXUst01nUKMEcHBs5H0ZWnS6MgrHf3Fcc0eH4Q VBu0QvSXgvrYw== From: Saeed Mahameed To: "David S. Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, Aya Levin , Moshe Shemesh , Saeed Mahameed Subject: [net 6/7] net/mlx5e: Fix mutual exclusion between CQE compression and HW TS Date: Tue, 7 Sep 2021 14:24:19 -0700 Message-Id: <20210907212420.28529-7-saeed@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210907212420.28529-1-saeed@kernel.org> References: <20210907212420.28529-1-saeed@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Aya Levin Some profiles of the driver don't support a dedicated PTP-RQ, hence can't support HW TS and CQE compression simultaneously. When HW TS is enabled the COE compression is disabled, and should be restored when the HW TS is turned off. Add rx_filter as an input to modifying CQE compression to enforce this restriction. Fixes: 256f79d13c1d ("net/mlx5e: Fix HW TS with CQE compression according to profile") Signed-off-by: Aya Levin Reviewed-by: Moshe Shemesh Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 2 +- drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 11 ++++++----- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 4 ++-- 3 files changed, 9 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 669a75f3537a..7b8c8187543a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -922,7 +922,7 @@ void mlx5e_set_rx_mode_work(struct work_struct *work); int mlx5e_hwstamp_set(struct mlx5e_priv *priv, struct ifreq *ifr); int mlx5e_hwstamp_get(struct mlx5e_priv *priv, struct ifreq *ifr); -int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val); +int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool val, bool rx_filter); int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto, u16 vid); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 2cfd12953909..306fb5d6a36d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1884,7 +1884,7 @@ static int set_pflag_rx_cqe_based_moder(struct net_device *netdev, bool enable) return set_pflag_cqe_based_moder(netdev, enable, true); } -int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool new_val) +int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool new_val, bool rx_filter) { bool curr_val = MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS); struct mlx5e_params new_params; @@ -1896,8 +1896,7 @@ int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool new_val if (curr_val == new_val) return 0; - if (new_val && !priv->profile->rx_ptp_support && - priv->tstamp.rx_filter != HWTSTAMP_FILTER_NONE) { + if (new_val && !priv->profile->rx_ptp_support && rx_filter) { netdev_err(priv->netdev, "Profile doesn't support enabling of CQE compression while hardware time-stamping is enabled.\n"); return -EINVAL; @@ -1905,7 +1904,7 @@ int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool new_val new_params = priv->channels.params; MLX5E_SET_PFLAG(&new_params, MLX5E_PFLAG_RX_CQE_COMPRESS, new_val); - if (priv->tstamp.rx_filter != HWTSTAMP_FILTER_NONE) + if (rx_filter) new_params.ptp_rx = new_val; if (new_params.ptp_rx == priv->channels.params.ptp_rx) @@ -1928,12 +1927,14 @@ static int set_pflag_rx_cqe_compress(struct net_device *netdev, { struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5_core_dev *mdev = priv->mdev; + bool rx_filter; int err; if (!MLX5_CAP_GEN(mdev, cqe_compression)) return -EOPNOTSUPP; - err = mlx5e_modify_rx_cqe_compression_locked(priv, enable); + rx_filter = priv->tstamp.rx_filter != HWTSTAMP_FILTER_NONE; + err = mlx5e_modify_rx_cqe_compression_locked(priv, enable, rx_filter); if (err) return err; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 47efd858964d..3fd515e7bf30 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -3554,14 +3554,14 @@ static int mlx5e_hwstamp_config_no_ptp_rx(struct mlx5e_priv *priv, bool rx_filte if (!rx_filter) /* Reset CQE compression to Admin default */ - return mlx5e_modify_rx_cqe_compression_locked(priv, rx_cqe_compress_def); + return mlx5e_modify_rx_cqe_compression_locked(priv, rx_cqe_compress_def, false); if (!MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS)) return 0; /* Disable CQE compression */ netdev_warn(priv->netdev, "Disabling RX cqe compression\n"); - err = mlx5e_modify_rx_cqe_compression_locked(priv, false); + err = mlx5e_modify_rx_cqe_compression_locked(priv, false, true); if (err) netdev_err(priv->netdev, "Failed disabling cqe compression err=%d\n", err);