Function mlx5_ipool_free

dpdk/drivers/net/mlx5/mlx5_utils.c:583–649

}

void
mlx5_ipool_free(struct mlx5_indexed_pool *pool, uint32_t idx)
{
	struct mlx5_indexed_trunk *trunk;
	uint32_t trunk_idx;
	uint32_t entry_idx;

	if (!idx)
		return;
	if (pool->cfg.per_core_cache) {
		mlx5_ipool_free_cache(pool, idx);
		return;
	}
	idx -= 1;
	mlx5_ipool_lock(pool);
	trunk_idx = mlx5_trunk_idx_get(pool, idx);
	if ((!pool->cfg.release_mem_en && trunk_idx >= pool->n_trunk_valid) ||
	    (pool->cfg.release_mem_en && trunk_idx >= pool->n_trunk))
		goto out;
	trunk = pool->trunks[trunk_idx];
	if (!trunk)
		goto out;
	entry_idx = idx - mlx5_trunk_idx_offset_get(pool, trunk->idx);
	if (trunk_idx != trunk->idx ||
	    rte_bitmap_get(trunk->bmp, entry_idx))
		goto out;
	rte_bitmap_set(trunk->bmp, entry_idx);
	trunk->free++;
	if (pool->cfg.release_mem_en && trunk->free == mlx5_trunk_size_get
	   (pool, trunk->idx)) {
		if (pool->free_list == trunk->idx)
			pool->free_list = trunk->next;
		if (trunk->next != TRUNK_INVALID)
			pool->trunks[trunk->next]->prev = trunk->prev;
		if (trunk->prev != TRUNK_INVALID)
			pool->trunks[trunk->prev]->next = trunk->next;
		pool->cfg.free(trunk);
		pool->trunks[trunk_idx] = NULL;
		pool->n_trunk_valid--;
#ifdef POOL_DEBUG
		pool->trunk_avail--;
		pool->trunk_free++;
#endif
		if (pool->n_trunk_valid == 0) {
			pool->cfg.free(pool->trunks);
			pool->trunks = NULL;
			pool->n_trunk = 0;
		}
	} else if (trunk->free == 1) {
		/* Put into free trunk list head. */
		MLX5_ASSERT(pool->free_list != trunk->idx);
		trunk->next = pool->free_list;
		trunk->prev = TRUNK_INVALID;
		if (pool->free_list != TRUNK_INVALID)
			pool->trunks[pool->free_list]->prev = trunk->idx;
		pool->free_list = trunk->idx;
#ifdef POOL_DEBUG
		pool->trunk_empty--;