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Mon, 27 Apr 2026 22:30:02 -0700 From: Tariq Toukan To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Mark Bloch , , , , Gal Pressman , Dragos Tatulea , Moshe Shemesh , Nimrod Oren Subject: [PATCH net-next 1/3] net/mlx5: wire frag buf pools lifecycle hooks Date: Tue, 28 Apr 2026 08:29:18 +0300 Message-ID: <20260428052920.219201-2-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20260428052920.219201-1-tariqt@nvidia.com> References: <20260428052920.219201-1-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: netdev@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: SN1PEPF00036F3E:EE_|DM4PR12MB8558:EE_ X-MS-Office365-Filtering-Correlation-Id: e72a2a88-05bd-4e00-f91f-08dea4e73fd8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|1800799024|82310400026|376014|18002099003|56012099003|22082099003; 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)(36860700016)(1800799024)(82310400026)(376014)(18002099003)(56012099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: OjB0DmdtPxb9uUIGgjfs6TVGM8vjm2lYzS5zqsIoDRnWLdXGEl8VjQDWyhn9bVR63+VX6sQgm+vN9qlYRyL6DldMVpb0clEzrMiioFd7OP6Qt9hrxyx9V2BxANYceijkr3RcHyt1k8wgViz5XOufebbIFtWVGIvJc2sWJuq+GWgbyNbGyIL7Sb8dLF2AAEBwBT9+pCp4Fm/S2arYKrWXmpIFl1EiLnqA7eyfSTWUvouv33jXf8FgY2LvFIUJiEImQCgPlhYZ3D20E5O0H9Fictdc7VPrDMFkhJHKeXHllKKGsAbgZhIlZnAmkOddARUwDc2FaYm+mRBhrr7ulS8xYYZNc3r6yX9kFiMYEi7rahF26QR9TgeprjT2GoWH/cuncLNsQQGN6wmolZyopB/5eiM0pB2i7gi4LMZgp9/s1FZzmKxRdXiUqwvi3LmOXFOe X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Apr 2026 05:30:24.7384 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e72a2a88-05bd-4e00-f91f-08dea4e73fd8 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: SN1PEPF00036F3E.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB8558 From: Nimrod Oren Wire mlx5_frag_buf pools init/cleanup hooks into mlx5_mdev_init()/uninit() and the init unwind path. Keep temporary no-op stubs in alloc.c so lifecycle ordering is in place before the coherent DMA sub-page allocator implementation is added in follow-up patches. Signed-off-by: Nimrod Oren Signed-off-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/alloc.c | 11 +++++++++++ drivers/net/ethernet/mellanox/mlx5/core/main.c | 7 +++++++ drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h | 2 ++ 3 files changed, 20 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/alloc.c b/drivers/net/ethernet/mellanox/mlx5/core/alloc.c index 202feab1558a..cebb3559d2c9 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/alloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/alloc.c @@ -71,6 +71,17 @@ static void *mlx5_dma_zalloc_coherent_node(struct mlx5_core_dev *dev, return cpu_handle; } +/* Implemented later in the series */ +void mlx5_frag_buf_pools_cleanup(struct mlx5_core_dev *dev) +{ +} + +/* Implemented later in the series */ +int mlx5_frag_buf_pools_init(struct mlx5_core_dev *dev) +{ + return 0; +} + int mlx5_frag_buf_alloc_node(struct mlx5_core_dev *dev, int size, struct mlx5_frag_buf *buf, int node) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 74827e8ca125..b1b9ebfd3866 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1817,6 +1817,10 @@ int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx) priv->dbg.dbg_root = debugfs_create_dir(dev_name(dev->device), mlx5_debugfs_root); + err = mlx5_frag_buf_pools_init(dev); + if (err) + goto err_frag_buf_pools_init; + INIT_LIST_HEAD(&priv->traps); err = mlx5_cmd_init(dev); @@ -1878,6 +1882,8 @@ int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx) err_timeout_init: mlx5_cmd_cleanup(dev); err_cmd_init: + mlx5_frag_buf_pools_cleanup(dev); +err_frag_buf_pools_init: debugfs_remove(dev->priv.dbg.dbg_root); mutex_destroy(&priv->pgdir_mutex); mutex_destroy(&priv->alloc_mutex); @@ -1902,6 +1908,7 @@ void mlx5_mdev_uninit(struct mlx5_core_dev *dev) mlx5_health_cleanup(dev); mlx5_tout_cleanup(dev); mlx5_cmd_cleanup(dev); + mlx5_frag_buf_pools_cleanup(dev); debugfs_remove_recursive(dev->priv.dbg.dbg_root); mutex_destroy(&priv->pgdir_mutex); mutex_destroy(&priv->alloc_mutex); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h index 1507e881d962..87f01c4e8d65 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h @@ -436,6 +436,8 @@ mlx5_sf_coredev_to_adev(struct mlx5_core_dev *mdev) int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx); void mlx5_mdev_uninit(struct mlx5_core_dev *dev); +int mlx5_frag_buf_pools_init(struct mlx5_core_dev *dev); +void mlx5_frag_buf_pools_cleanup(struct mlx5_core_dev *dev); int mlx5_init_one(struct mlx5_core_dev *dev); int mlx5_init_one_devl_locked(struct mlx5_core_dev *dev); void mlx5_uninit_one(struct mlx5_core_dev *dev); -- 2.44.0