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Thu, 8 Oct 2026 06:29:18 -0700 Received: from vdi.nvidia.com (10.127.8.10) by mail.nvidia.com (10.129.68.7) with Microsoft SMTP Server id 15.2.2562.49 via Frontend Transport; Thu, 8 Oct 2026 06:29:11 -0700 From: Tariq Toukan To: Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , , Paolo Abeni CC: Bobby Eshleman , Byungchul Park , Carolina Jubran , Cosmin Ratiu , Dragos Tatulea , Gal Pressman , Jacob Keller , Kees Cook , Leon Romanovsky , open list , , Mark Bloch , Matt Fleming , Mina Almasry , Nikolay Aleksandrov , "Saeed Mahameed" , Shivaji Kant , "Simon Horman" , Stanislav Fomichev , "Stanislav Fomichev" , Tariq Toukan , William Tu , Yue Haibing Subject: [PATCH net-next 07/10] net/mlx5e: Use the correct DMA dev when data_direct pdev enabled Date: Thu, 8 Oct 2026 16:28:12 +0300 Message-ID: <20261008132815.654147-8-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20261008132815.654147-1-tariqt@nvidia.com> References: <20261008132815.654147-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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: SJ5PEPF000001D1:EE_|PH8PR12MB7303:EE_ X-MS-Office365-Filtering-Correlation-Id: 57a3c705-9d09-4c82-f6bc-08df2540370e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|23010399003|36860700016|1800799024|82310400026|56012099006|11063799006|10067099003|22082099003|18002099003; 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)(7416014)(376014)(23010399003)(36860700016)(1800799024)(82310400026)(56012099006)(11063799006)(10067099003)(22082099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: fXDXn7A4Z2QPjhIAWClXM5ux/KNsqCl7u68kUkMVKjZ+W/NEtC+pRVaLh8feyqGnrbCh2kmmZ3Qytzv76GenJP6JZanwxMOZkLCQbKsM6uHTf+gfmvocjHCFkJMU3uc1beetE+QZiJz5wL/vXCf/T9tHon/8mxzsS9VBR3TToihC1xK/vgyPacTVuyu3l4GV6i28sePYguJKX69IbilYFFZXSG/lpJq8JCfPyhICW0oRsKBolNSYNXuliJPNE8hDy2fzYVI4RAMcf/VsiF9YwzHsu8JLCdGRfSCuS2F67bBdfMIjDQEbNkUlC5RUZuTrqTCk+L2/O3wXRCQObRomhOCQAT5jRLsLyeEnRKKlS8wBbW0DQ0BG+fibZ2Urm+bVVbZjAb88qtkg+th1tOr3lu1iOeyvHHPcJaqH2RVLoybEjMTUKfwT37zxIRkOIMWY X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Oct 2026 13:29:44.1419 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 57a3c705-9d09-4c82-f6bc-08df2540370e 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: SJ5PEPF000001D1.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB7303 From: Dragos Tatulea When the private flag is set, always return the data direct PCI device instead of the NIC PF PCI device in .ndo_queue_get_dma_dev. Rename netdev argument to netdev because there are too many confusing "dev"-based names in this function. Signed-off-by: Dragos Tatulea Signed-off-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index d5282a301621..6476baf71bde 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -5897,10 +5897,10 @@ static int mlx5e_queue_start(struct net_device *dev, return 0; } -static struct device *mlx5e_queue_get_dma_dev(struct net_device *dev, +static struct device *mlx5e_queue_get_dma_dev(struct net_device *netdev, int queue_index) { - struct mlx5e_priv *priv = netdev_priv(dev); + struct mlx5e_priv *priv = netdev_priv(netdev); struct mlx5e_channels *channels; struct device *pdev = NULL; struct mlx5e_channel *ch; @@ -5913,7 +5913,16 @@ static struct device *mlx5e_queue_get_dma_dev(struct net_device *dev, goto out; ch = channels->c[queue_index]; - pdev = ch->pdev; + if (MLX5E_GET_PFLAG(&channels->params, MLX5E_PFLAG_DATA_DIRECT)) { + struct mlx5_core_dev *mdev = ch->mdev; + struct mlx5_data_direct_dev *dd_dev; + + dd_dev = mlx5_data_direct_get_dev(mdev->data_direct); + if (dd_dev) + pdev = &dd_dev->pdev->dev; + } else { + pdev = ch->pdev; + } out: mutex_unlock(&priv->state_lock); -- 2.44.0