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Commit 27e95603 authored by Moni Shoua's avatar Moni Shoua Committed by Leon Romanovsky
Browse files

net/mlx5: Add interface to hold and release core resources 



Sometimes upper layers may want to prevent the destruction of a core
resource for a period of time while work on that resource is in
progress.  Add API to support this.

Signed-off-by: default avatarMoni Shoua <monis@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
parent 69811496

drivers/net/ethernet/mellanox/mlx5/core/qp.c

+16 −0
Original line number Diff line number Diff line
@@ -670,3 +670,19 @@ int mlx5_core_query_q_counter(struct mlx5_core_dev *dev, u16 counter_id, 
	return mlx5_cmd_exec(dev, in, sizeof(in), out, out_size);

}

EXPORT_SYMBOL_GPL(mlx5_core_query_q_counter);



struct mlx5_core_rsc_common *mlx5_core_res_hold(struct mlx5_core_dev *dev,

						int res_num,

						enum mlx5_res_type res_type)

{

	u32 rsn = res_num | (res_type << MLX5_USER_INDEX_LEN);



	return mlx5_get_rsc(dev, rsn);

}

EXPORT_SYMBOL_GPL(mlx5_core_res_hold);



void mlx5_core_res_put(struct mlx5_core_rsc_common *res)

{

	mlx5_core_put_rsc(res);

}

EXPORT_SYMBOL_GPL(mlx5_core_res_put);

include/linux/mlx5/qp.h

+5 −0
Original line number Diff line number Diff line
@@ -596,6 +596,11 @@ int mlx5_core_dealloc_q_counter(struct mlx5_core_dev *dev, u16 counter_id); 
int mlx5_core_query_q_counter(struct mlx5_core_dev *dev, u16 counter_id,

			      int reset, void *out, int out_size);



struct mlx5_core_rsc_common *mlx5_core_res_hold(struct mlx5_core_dev *dev,

						int res_num,

						enum mlx5_res_type res_type);

void mlx5_core_res_put(struct mlx5_core_rsc_common *res);



static inline const char *mlx5_qp_type_str(int type)

{

	switch (type) {