1 #ifndef _HWBM_H 2 #define _HWBM_H 3 4 struct hwbm_pool { 5 /* Capacity of the pool */ 6 int size; 7 /* Size of the buffers managed */ 8 int frag_size; 9 /* Number of buffers currently used by this pool */ 10 int buf_num; 11 /* constructor called during alocation */ 12 int (*construct)(struct hwbm_pool *bm_pool, void *buf); 13 /* protect acces to the buffer counter*/ 14 spinlock_t lock; 15 /* private data */ 16 void *priv; 17 }; 18 #ifdef CONFIG_HWBM 19 void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf); 20 int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp); 21 int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp); 22 #else 23 void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {} 24 int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { return 0; } 25 int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp) 26 { return 0; } 27 #endif /* CONFIG_HWBM */ 28 #endif /* _HWBM_H */ 29