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Miller" , Eric Dumazet , Jakub Kicinski , , Paolo Abeni CC: Bobby Eshleman , Carolina Jubran , Cosmin Ratiu , Daniel Borkmann , David Wei , Dragos Tatulea , Erfan Sharafzadeh , Gal Pressman , Jacob Keller , Kaifeng Wang , Leon Romanovsky , open list , , Mark Bloch , Matt Fleming , Mina Almasry , Nikolay Aleksandrov , "Saeed Mahameed" , Simon Horman , "Stanislav Fomichev" , Stanislav Fomichev , "Tariq Toukan" , William Tu Subject: [PATCH net-next V2 05/13] net/mlx5e: Add data direct ethtool private flag Date: Tue, 10 Nov 2026 20:38:18 +0200 Message-ID: <20261110183826.2927274-6-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20261110183826.2927274-1-tariqt@nvidia.com> References: <20261110183826.2927274-1-tariqt@nvidia.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PH2PEPF00048913:EE_|CY1PR12MB9558:EE_ X-MS-Office365-Filtering-Correlation-Id: 55b905fa-598d-4930-dfaa-08df3f5a00e6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|7416014|376014|1800799024|36860700016|23010399003|56012099006|261026121527099003|11063799006|261021121427099003|261022075727099003|261009223027099003|261102123227099003|10067099003|18002099003|22082099003|6133799003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(7416014)(376014)(1800799024)(36860700016)(23010399003)(56012099006)(261026121527099003)(11063799006)(261021121427099003)(261022075727099003)(261009223027099003)(261102123227099003)(10067099003)(18002099003)(22082099003)(6133799003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: yqehak3Eq1kngSW0ibKcKngPM900Ft2zZpmxe28rnuIqZElJX6Cvqj6HN72rh0upPFEHETleErttUxU5yhIn0NVM0DK8wS87GnBm7gXIZozTbuJb65lbGaZNjkdSS7e0M2mzC+PDq6h/VUQKzBAdg4H3cXNqzT7wbxQuXLtcJdaShNsYpG/cezIcfltbYUtG6lomp/2SqEJ0uyOAdMNeWukZx3NJV7aG+PDS5FpmBduKTzQ4wxSJHIEhf6OVzBf3Gte225kIMEoYugaGdsJZaNCsdGO9m52LubazT5vmfMYydrL5vJrTpwWLmfPozd8TtTyUq9TFpBUelP3OwjQkLw83caMm9F0yOPLJDG9cWPWT3BKLsxyjTuu8sE5bHrr+7G2NE3qJYvPoVhR5bfmS15z/JU/6AGLedBn98INoJdw5CBqHfjbHrsOFg2Oweir/ X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Nov 2026 18:39:50.3742 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 55b905fa-598d-4930-dfaa-08df3f5a00e6 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: PH2PEPF00048913.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR12MB9558 From: Dragos Tatulea This patch adds the data direct private flag infrastructure. The MLX5E_PFLAG_DATA_DIRECT flag is needed in the follow-up patches to detect the configuration of data direct from the user side. For now the flag can't be actually set. This will be implemented in a follow-up patch once all pieces are put together. This patch doesn't introduce any functional changes. Signed-off-by: Dragos Tatulea Reviewed-by: Cosmin Ratiu Signed-off-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/en.h | 1 + drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 000493f42912..c5bbe5adea45 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -264,6 +264,7 @@ enum mlx5e_priv_flag { MLX5E_PFLAG_XDP_TX_MPWQE, MLX5E_PFLAG_SKB_TX_MPWQE, MLX5E_PFLAG_TX_PORT_TS, + MLX5E_PFLAG_DATA_DIRECT, MLX5E_NUM_PFLAGS, /* Keep last */ }; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index 1f534051cdfe..26f76449af35 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -2405,6 +2405,11 @@ static int set_pflag_tx_port_ts(struct net_device *netdev, bool enable) return err; } +static int set_pflag_data_direct(struct net_device *netdev, bool enable) +{ + return -EOPNOTSUPP; +} + static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { { "rx_cqe_moder", set_pflag_rx_cqe_based_moder }, { "tx_cqe_moder", set_pflag_tx_cqe_based_moder }, @@ -2414,6 +2419,7 @@ static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = { { "xdp_tx_mpwqe", set_pflag_xdp_tx_mpwqe }, { "skb_tx_mpwqe", set_pflag_skb_tx_mpwqe }, { "tx_port_ts", set_pflag_tx_port_ts }, + { "data_direct", set_pflag_data_direct }, }; static int mlx5e_handle_pflag(struct net_device *netdev, -- 2.44.0