Function test12

dpdk/app/test/test_lpm6.c:590–623

* Creates an LPM table with a small number of tbl8s and exhaust them in the * middle of the process of adding a rule when there is already an existing rule * in that position and needs to be extended. */

 * in that position and needs to be extended.
 */
int32_t
test12(void)
{
	struct rte_lpm6 *lpm = NULL;
	struct rte_lpm6_config config;
	uint8_t ip[] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
	uint8_t depth;
	uint32_t next_hop_add = 100;
	int32_t status = 0;

	config.max_rules = MAX_RULES;
	config.number_tbl8s = 16;
	config.flags = 0;

	lpm = rte_lpm6_create(__func__, SOCKET_ID_ANY, &config);
	TEST_LPM_ASSERT(lpm != NULL);

	depth = 128;
	status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
	TEST_LPM_ASSERT(status == 0);

	ip[0] = 1;
	depth = 41;
	status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
	TEST_LPM_ASSERT(status == 0);

	depth = 49;
	status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
	TEST_LPM_ASSERT(status == -ENOSPC);

	rte_lpm6_free(lpm);

	return PASS;
}

/*
 * Creates an LPM table with max_rules = 2 and tries to add 3 rules.