Function _mlx5_ipool_free_cache

dpdk/drivers/net/mlx5/mlx5_utils.c:448–496

}

static void
_mlx5_ipool_free_cache(struct mlx5_indexed_pool *pool, int cidx, uint32_t idx)
{
	struct mlx5_ipool_per_lcore *ilc;
	struct mlx5_indexed_cache *gc, *olc = NULL;
	uint32_t reclaim_num = 0;

	MLX5_ASSERT(idx);
	/*
	 * When index was allocated on core A but freed on core B. In this
	 * case check if local cache on core B was allocated before.
	 */
	if (unlikely(!pool->cache[cidx])) {
		pool->cache[cidx] = pool->cfg.malloc(MLX5_MEM_ZERO,
			sizeof(struct mlx5_ipool_per_lcore) +
			(pool->cfg.per_core_cache * sizeof(uint32_t)),
			RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
		if (!pool->cache[cidx]) {
			DRV_LOG(ERR, "Ipool cache%d allocate failed\n", cidx);
			return;
		}
	}
	/* Try to enqueue to local index cache. */
	if (pool->cache[cidx]->len < pool->cfg.per_core_cache) {
		pool->cache[cidx]->idx[pool->cache[cidx]->len] = idx;
		pool->cache[cidx]->len++;
		return;
	}
	ilc = pool->cache[cidx];
	reclaim_num = pool->cfg.per_core_cache >> 2;
	ilc->len -= reclaim_num;
	/* Local index cache full, try with global index cache. */
	mlx5_ipool_lock(pool);
	gc = pool->gc;
	if (ilc->lc != gc) {
		if (ilc->lc && !(--ilc->lc->ref_cnt))
			olc = ilc->lc;
		gc->ref_cnt++;
		ilc->lc = gc;
	}
	memcpy(&gc->idx[gc->len], &ilc->idx[ilc->len],
	       reclaim_num * sizeof(uint32_t));
	gc->len += reclaim_num;
	mlx5_ipool_unlock(pool);
	if (olc)
		pool->cfg.free(olc);
	pool->cache[cidx]->idx[pool->cache[cidx]->len] = idx;
	pool->cache[cidx]->len++;
}

static void
mlx5_ipool_free_cache(struct mlx5_indexed_pool *pool, uint32_t idx)