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net/mlx5: wire frag buf pools lifecycle hooks

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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 <noren@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260429201429.223809-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Nimrod Oren 2026-04-29 23:14:27 +03:00 committed by Jakub Kicinski
parent ff393252f9
commit 3796df7645
3 changed files with 20 additions and 0 deletions
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11
drivers/net/ethernet/mellanox/mlx5/core/alloc.c
View File

@ -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)
{

7
drivers/net/ethernet/mellanox/mlx5/core/main.c
View File

@ -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);

2
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
View File

@ -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);