Function test14

dpdk/app/test/test_lpm6.c:677–719

* Add 2^12 routes with different first 12 bits and depth 25. * Add one more route with the same depth and check that results in a failure. * After that delete the last rule and create the one that was attempted to be * created. This checks tbl8 exhaustion. */

 * created. This checks tbl8 exhaustion.
 */
int32_t
test14(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 = 25;
	uint32_t next_hop_add = 100;
	int32_t status = 0;
	int i;

	config.max_rules = MAX_RULES;
	config.number_tbl8s = 256;
	config.flags = 0;

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

	for (i = 0; i < 256; i++) {
		ip[0] = (uint8_t)i;
		status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
		TEST_LPM_ASSERT(status == 0);
	}

	ip[0] = 255;
	ip[1] = 1;
	status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
	TEST_LPM_ASSERT(status == -ENOSPC);

	ip[0] = 255;
	ip[1] = 0;
	status = rte_lpm6_delete(lpm, ip, depth);
	TEST_LPM_ASSERT(status == 0);

	ip[0] = 255;
	ip[1] = 1;
	status = rte_lpm6_add(lpm, ip, depth, next_hop_add);
	TEST_LPM_ASSERT(status == 0);

	rte_lpm6_free(lpm);

	return PASS;
}

/*
 * Call add, lookup and delete for a single rule with depth = 24