Commit 04562694 authored by Vlad Dogaru's avatar Vlad Dogaru Committed by Jakub Kicinski
Browse files

net/mlx5: HWS, Add fullness tracking to pool 



Future users will need to query whether a pool is empty.

Signed-off-by: default avatarVlad Dogaru <vdogaru@nvidia.com>
Reviewed-by: default avatarYevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: default avatarMark Bloch <mbloch@nvidia.com>
Signed-off-by: default avatarTariq Toukan <tariqt@nvidia.com>
Reviewed-by: default avatarMichal Kubiak <michal.kubiak@intel.com>
Link: https://patch.msgid.link/1744312662-356571-7-git-send-email-tariqt@nvidia.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 43a2038c

drivers/net/ethernet/mellanox/mlx5/core/steering/hws/pool.c

+7 −0
Original line number Diff line number Diff line
@@ -324,6 +324,8 @@ int mlx5hws_pool_chunk_alloc(struct mlx5hws_pool *pool, 


	mutex_lock(&pool->lock);

	ret = pool->p_get_chunk(pool, chunk);

	if (ret == 0)

		pool->available_elems -= 1 << chunk->order;

	mutex_unlock(&pool->lock);



	return ret;
@@ -334,6 +336,7 @@ void mlx5hws_pool_chunk_free(struct mlx5hws_pool *pool, 
{

	mutex_lock(&pool->lock);

	pool->p_put_chunk(pool, chunk);

	pool->available_elems += 1 << chunk->order;

	mutex_unlock(&pool->lock);

}
@@ -360,6 +363,7 @@ mlx5hws_pool_create(struct mlx5hws_context *ctx, struct mlx5hws_pool_attr *pool_ 
		res_db_type = MLX5HWS_POOL_DB_TYPE_BITMAP;



	pool->alloc_log_sz = pool_attr->alloc_log_sz;

	pool->available_elems = 1 << pool_attr->alloc_log_sz;



	if (hws_pool_db_init(pool, res_db_type))

		goto free_pool;
@@ -377,6 +381,9 @@ void mlx5hws_pool_destroy(struct mlx5hws_pool *pool) 
{

	mutex_destroy(&pool->lock);



	if (pool->available_elems != 1 << pool->alloc_log_sz)

		mlx5hws_err(pool->ctx, "Attempting to destroy non-empty pool\n");



	if (pool->resource)

		hws_pool_resource_free(pool);

drivers/net/ethernet/mellanox/mlx5/core/steering/hws/pool.h

+25 −0
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ struct mlx5hws_pool { 
	enum mlx5hws_pool_flags flags;

	struct mutex lock; /* protect the pool */

	size_t alloc_log_sz;

	size_t available_elems;

	enum mlx5hws_table_type tbl_type;

	enum mlx5hws_pool_optimize opt_type;

	struct mlx5hws_pool_resource *resource;
@@ -103,4 +104,28 @@ static inline u32 mlx5hws_pool_get_base_mirror_id(struct mlx5hws_pool *pool) 
{

	return pool->mirror_resource->base_id;

}



static inline bool

mlx5hws_pool_empty(struct mlx5hws_pool *pool)

{

	bool ret;



	mutex_lock(&pool->lock);

	ret = pool->available_elems == 0;

	mutex_unlock(&pool->lock);



	return ret;

}



static inline bool

mlx5hws_pool_full(struct mlx5hws_pool *pool)

{

	bool ret;



	mutex_lock(&pool->lock);

	ret = pool->available_elems == (1 << pool->alloc_log_sz);

	mutex_unlock(&pool->lock);



	return ret;

}

#endif /* MLX5HWS_POOL_H_ */