Function rte_hash_create

dpdk/lib/hash/rte_cuckoo_hash.c:131–481

}

struct rte_hash *
rte_hash_create(const struct rte_hash_parameters *params)
{
	struct rte_hash *h = NULL;
	struct rte_tailq_entry *te = NULL;
	struct rte_hash_list *hash_list;
	struct rte_ring *r = NULL;
	struct rte_ring *r_ext = NULL;
	char hash_name[RTE_HASH_NAMESIZE];
	void *k = NULL;
	void *buckets = NULL;
	void *buckets_ext = NULL;
	char ring_name[RTE_RING_NAMESIZE];
	char ext_ring_name[RTE_RING_NAMESIZE];
	unsigned num_key_slots;
	unsigned int hw_trans_mem_support = 0, use_local_cache = 0;
	unsigned int ext_table_support = 0;
	unsigned int readwrite_concur_support = 0;
	unsigned int writer_takes_lock = 0;
	unsigned int no_free_on_del = 0;
	uint32_t *ext_bkt_to_free = NULL;
	RTE_ATOMIC(uint32_t) *tbl_chng_cnt = NULL;
	struct lcore_cache *local_free_slots = NULL;
	unsigned int readwrite_concur_lf_support = 0;
	uint32_t i;

	rte_hash_function default_hash_func = (rte_hash_function)rte_jhash;

	hash_list = RTE_TAILQ_CAST(rte_hash_tailq.head, rte_hash_list);

	if (params == NULL) {
		RTE_LOG(ERR, HASH, "rte_hash_create has no parameters\n");
		return NULL;
	}

	/* Check for valid parameters */
	if ((params->entries > RTE_HASH_ENTRIES_MAX) ||
			(params->entries < RTE_HASH_BUCKET_ENTRIES) ||
			(params->name == NULL) ||
			(params->key_len == 0)) {
		rte_errno = EINVAL;
		RTE_LOG(ERR, HASH, "rte_hash_create has invalid parameters\n");
		return NULL;
	}

	if (params->extra_flag & ~RTE_HASH_EXTRA_FLAGS_MASK) {
		rte_errno = EINVAL;
		RTE_LOG(ERR, HASH, "rte_hash_create: unsupported extra flags\n");
		return NULL;
	}

	/* Validate correct usage of extra options */
	if ((params->extra_flag & RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY) &&
	    (params->extra_flag & RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF)) {
		rte_errno = EINVAL;
		RTE_LOG(ERR, HASH, "rte_hash_create: choose rw concurrency or "
			"rw concurrency lock free\n");
		return NULL;