include/net/hwbm.h

   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 */