Function table_params_get

dpdk/lib/table/rte_swx_table_learner.c:172–246

}

static int
table_params_get(struct table_params *p, struct rte_swx_table_learner_params *params)
{
	uint32_t i;

	/* Check input parameters. */
	if (!params ||
	    !params->key_size ||
	    !params->n_keys_max ||
	    (params->n_keys_max > 1U << 31) ||
	    !params->key_timeout ||
	    !params->n_key_timeouts ||
	    (params->n_key_timeouts > RTE_SWX_TABLE_LEARNER_N_KEY_TIMEOUTS_MAX))
		return -EINVAL;

	if (params->key_mask0) {
		for (i = 0; i < params->key_size; i++)
			if (params->key_mask0[i] != 0xFF)
				break;

		if (i < params->key_size)
			return -EINVAL;
	}

	for (i = 0; i < params->n_key_timeouts; i++)
		if (!params->key_timeout[i])
			return -EINVAL;

	/* Key. */
	p->key_size = params->key_size;

	p->key_size_pow2 = rte_align64pow2(p->key_size);

	p->key_size_log2 = rte_ctz64(p->key_size_pow2);

	p->key_offset = params->key_offset;

	/* Data. */
	p->action_data_size = params->action_data_size;

	p->data_size_pow2 = rte_align64pow2(sizeof(uint64_t) + p->action_data_size);

	p->data_size_log2 = rte_ctz64(p->data_size_pow2);

	/* Buckets. */
	p->n_buckets = rte_align32pow2(params->n_keys_max);

	p->bucket_mask = p->n_buckets - 1;

	p->bucket_key_all_size = TABLE_KEYS_PER_BUCKET * p->key_size_pow2;

	p->bucket_size = rte_align64pow2(sizeof(struct table_bucket) +
					 p->bucket_key_all_size +
					 TABLE_KEYS_PER_BUCKET * p->data_size_pow2);

	p->bucket_size_log2 = rte_ctz64(p->bucket_size);

	p->hash_func = params->hash_func ? params->hash_func : rte_hash_crc;