LXR linux/include/net/hwbm.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _HWBM_H
   3#define _HWBM_H
   4
   5struct hwbm_pool {
   6        /* Capacity of the pool */
   7        int size;
   8        /* Size of the buffers managed */
   9        int frag_size;
  10        /* Number of buffers currently used by this pool */
  11        int buf_num;
  12        /* constructor called during alocation */
  13        int (*construct)(struct hwbm_pool *bm_pool, void *buf);
  14        /* protect acces to the buffer counter*/
  15        spinlock_t lock;
  16        /* private data */
  17        void *priv;
  18};
  19#ifdef CONFIG_HWBM
  20void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf);
  21int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp);
  22int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp);
  23#else
  24void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {}
  25int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { return 0; }
  26int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp)
  27{ return 0; }
  28#endif /* CONFIG_HWBM */
  29#endif /* _HWBM_H */
  30