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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/* Copyright (c) 2024 NVIDIA Corporation & Affiliates */
#ifndef __MLX5_FS_POOL_H__
#define __MLX5_FS_POOL_H__
#include <linux/mlx5/driver.h>
struct mlx5_fs_bulk {
struct list_head pool_list;
int bulk_len;
unsigned long *bitmask;
};
struct mlx5_fs_pool_index {
struct mlx5_fs_bulk *fs_bulk;
int index;
};
struct mlx5_fs_pool;
struct mlx5_fs_pool_ops {
int (*bulk_destroy)(struct mlx5_core_dev *dev, struct mlx5_fs_bulk *bulk);
struct mlx5_fs_bulk * (*bulk_create)(struct mlx5_core_dev *dev,
void *pool_ctx);
void (*update_threshold)(struct mlx5_fs_pool *pool);
};
struct mlx5_fs_pool {
struct mlx5_core_dev *dev;
void *pool_ctx;
const struct mlx5_fs_pool_ops *ops;
struct mutex pool_lock; /* protects pool lists */
struct list_head fully_used;
struct list_head partially_used;
struct list_head unused;
int available_units;
int used_units;
int threshold;
};
int mlx5_fs_bulk_init(struct mlx5_core_dev *dev, struct mlx5_fs_bulk *fs_bulk,
int bulk_len);
void mlx5_fs_bulk_cleanup(struct mlx5_fs_bulk *fs_bulk);
int mlx5_fs_bulk_get_free_amount(struct mlx5_fs_bulk *bulk);
void mlx5_fs_pool_init(struct mlx5_fs_pool *pool, struct mlx5_core_dev *dev,
const struct mlx5_fs_pool_ops *ops, void *pool_ctx);
void mlx5_fs_pool_cleanup(struct mlx5_fs_pool *pool);
int mlx5_fs_pool_acquire_index(struct mlx5_fs_pool *fs_pool,
struct mlx5_fs_pool_index *pool_index);
int mlx5_fs_pool_release_index(struct mlx5_fs_pool *fs_pool,
struct mlx5_fs_pool_index *pool_index);
#endif /* __MLX5_FS_POOL_H__ */
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