[dpdk-dev,v4,3/4] Add autotests for RIB library

diff --git a/test/test/Makefile b/test/test/Makefile
index 2630ab4..b5f4fb3 100644
--- a/test/test/Makefile
+++ b/test/test/Makefile
@@ -119,6 +119,11 @@  SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_lpm_perf.c
 SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_lpm6.c
 SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_lpm6_perf.c
 
+SRCS-$(CONFIG_RTE_LIBRTE_RIB) += test_rib.c
+SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_rib_generate_rt.c
+SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_rib_perf.c
+SRCS-$(CONFIG_RTE_LIBRTE_LPM) += test_rib_lpm_comp.c
+
 SRCS-y += test_debug.c
 SRCS-y += test_errno.c
 SRCS-y += test_tailq.c
diff --git a/test/test/meson.build b/test/test/meson.build
index ad0a650..f9abc3d 100644
--- a/test/test/meson.build
+++ b/test/test/meson.build
@@ -74,6 +74,10 @@  test_sources = files('commands.c',
 	'test_reciprocal_division_perf.c',
 	'test_red.c',
 	'test_reorder.c',
+	'test_rib.c',
+	'test_rib_generate_rt.c',
+	'test_rib_perf.c',
+	'test_rib_lpm_comp.c',
 	'test_ring.c',
 	'test_ring_perf.c',
 	'test_rwlock.c',
@@ -111,6 +115,7 @@  test_deps = ['acl',
 	'pipeline',
 	'port',
 	'reorder',
+	'rib',
 	'ring',
 	'timer'
 ]
@@ -192,6 +197,9 @@  test_names = [
 	'red_autotest',
 	'red_perf',
 	'reorder_autotest',
+	'rib_autotest',
+	'rib_perf_autotest',
+	'rib_lpm_comp_autotest',
 	'ring_autotest',
 	'ring_perf_autotest',
 	'ring_pmd_autotest',
diff --git a/test/test/test_rib.c b/test/test/test_rib.c
new file mode 100644
index 0000000..c5d7509
--- /dev/null
+++ b/test/test/test_rib.c
@@ -0,0 +1,308 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Vladimir Medvedkin <medvedkinv@gmail.com>
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <rte_ip.h>
+#include <rte_rib.h>
+
+#include "test.h"
+#include "test_xmmt_ops.h"
+#include <rte_dir24_8.h>
+
+
+#define TEST_RIB_ASSERT(cond) do {				\
+	if (!(cond)) {						\
+		printf("Error at line %d:\n", __LINE__);	\
+		return -1;					\
+	}							\
+} while (0)
+
+typedef int32_t (*rte_rib_test)(void);
+
+static int32_t test0(void);
+static int32_t test1(void);
+static int32_t test2(void);
+static int32_t test3(void);
+static int32_t test4(void);
+static int32_t test5(void);
+
+static rte_rib_test tests[] = {
+/* Test Cases */
+	test0,
+	test1,
+	test2,
+	test3,
+	test4,
+	test5
+};
+
+#define NUM_RIB_TESTS (sizeof(tests)/sizeof(tests[0]))
+#define MAX_DEPTH 32
+#define MAX_RULES (1 << 22)
+#define NUMBER_TBL8S 4096
+#define PASS 0
+
+/*
+ * Check that rte_rib_create fails gracefully for incorrect user input
+ * arguments
+ */
+int32_t
+test0(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_rib_conf config;
+
+	config.type = RTE_RIB_DIR24_8;
+	config.max_nodes = MAX_RULES;
+	config.node_sz = sizeof(struct rte_rib_node);
+	config.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_4B;
+	config.fib_conf.dir24_8.num_tbl8 = NUMBER_TBL8S;
+	config.fib_conf.dir24_8.def_nh = 0;
+
+	/* rte_rib_create: rib name == NULL */
+	rib = rte_rib_create(NULL, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+
+	/* rte_rib_create: config == NULL */
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, NULL);
+	TEST_RIB_ASSERT(rib == NULL);
+
+	/* socket_id < -1 is invalid */
+	rib = rte_rib_create(__func__, -2, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+
+	/* rte_rib_create: max_nodes = 0 */
+	config.max_nodes = 0;
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+	config.max_nodes = MAX_RULES;
+
+	/* rte_rib_create: node_sz = 0 */
+	config.node_sz = 0;
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+	config.node_sz = sizeof(struct rte_rib_node);
+
+	/* rte_rib_create: invalid type */
+	config.type = RTE_RIB_TYPE_MAX;
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+	config.type = RTE_RIB_DIR24_8;
+
+	/* rte_rib_create: invalid fib type */
+	config.fib_conf.dir24_8.nh_sz = 10;
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+	config.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_4B;
+
+	/** rte_rib_create: invalid default next hop */
+	config.fib_conf.dir24_8.def_nh = UINT32_MAX;
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+	config.fib_conf.dir24_8.def_nh = 0;
+
+	config.fib_conf.dir24_8.num_tbl8 = UINT32_MAX;
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib == NULL);
+
+	return PASS;
+}
+
+/*
+ * Create rib table then delete rib table 10 times
+ * Use a slightly different rules size each time
+ */
+int32_t
+test1(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_rib_conf config;
+	int32_t i, j;
+
+	config.node_sz = sizeof(struct rte_rib_node);
+	config.type = RTE_RIB_DIR24_8;
+	config.fib_conf.dir24_8.def_nh = 0;
+	config.fib_conf.dir24_8.num_tbl8 = 127;
+
+	for (j = 0; j < 4; j++) {
+		config.fib_conf.dir24_8.nh_sz = j;
+		/* rte_rib_free: Free NULL */
+		for (i = 0; i < 2; i++) {
+			config.max_nodes = MAX_RULES - i;
+			rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+			TEST_RIB_ASSERT(rib != NULL);
+			rte_rib_free(rib);
+		}
+	}
+	/* Can not test free so return success */
+	return PASS;
+}
+
+/*
+ * Call rte_rib_free for NULL pointer user input. Note: free has no return and
+ * therefore it is impossible to check for failure but this test is added to
+ * increase function coverage metrics and to validate that freeing null does
+ * not crash.
+ */
+int32_t
+test2(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_rib_conf config;
+
+	config.type = RTE_RIB_DIR24_8;
+	config.max_nodes = MAX_RULES;
+	config.node_sz = sizeof(struct rte_rib_node);
+	config.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_4B;
+	config.fib_conf.dir24_8.num_tbl8 = NUMBER_TBL8S;
+	config.fib_conf.dir24_8.def_nh = 0;
+
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib != NULL);
+
+	rte_rib_free(rib);
+	rte_rib_free(NULL);
+	return PASS;
+}
+
+/*
+ * Check that rte_rib_add fails gracefully for incorrect user input arguments
+ */
+int32_t
+test3(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_rib_conf config;
+	uint32_t ip = IPv4(0, 0, 0, 0);
+	uint64_t next_hop = 100;
+	uint8_t depth = 24;
+	int32_t status = 0;
+
+	config.type = RTE_RIB_DIR24_8;
+	config.max_nodes = MAX_RULES;
+	config.node_sz = sizeof(struct rte_rib_node);
+	config.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_4B;
+	config.fib_conf.dir24_8.num_tbl8 = NUMBER_TBL8S;
+	config.fib_conf.dir24_8.def_nh = 0;
+
+	/* rte_rib_add: rib == NULL */
+	status = rte_rib_add(NULL, ip, depth, next_hop);
+	TEST_RIB_ASSERT(status < 0);
+
+	/*Create valid rib to use in rest of test. */
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib != NULL);
+
+	/* rte_rib_add: depth > MAX_DEPTH */
+	status = rte_rib_add(rib, ip, (MAX_DEPTH + 1), next_hop);
+	TEST_RIB_ASSERT(status < 0);
+
+	rte_rib_free(rib);
+
+	return PASS;
+}
+
+/*
+ * Check that rte_rib_delete fails gracefully for incorrect user input
+ * arguments
+ */
+int32_t
+test4(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_rib_conf config;
+	uint32_t ip = IPv4(0, 0, 0, 0);
+	uint8_t depth = 24;
+	int32_t status = 0;
+
+	config.type = RTE_RIB_DIR24_8;
+	config.max_nodes = MAX_RULES;
+	config.node_sz = sizeof(struct rte_rib_node);
+	config.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_4B;
+	config.fib_conf.dir24_8.num_tbl8 = NUMBER_TBL8S;
+	config.fib_conf.dir24_8.def_nh = 0;
+
+	/* rte_rib_delete: rib == NULL */
+	status = rte_rib_delete(NULL, ip, depth);
+	TEST_RIB_ASSERT(status < 0);
+
+	/*Create valid rib to use in rest of test. */
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib != NULL);
+
+	/* rte_rib_delete: depth > MAX_DEPTH */
+	status = rte_rib_delete(rib, ip, (MAX_DEPTH + 1));
+	TEST_RIB_ASSERT(status < 0);
+
+	rte_rib_free(rib);
+
+	return PASS;
+}
+
+/*
+ * Call add, lookup and delete for a single rule with depth <= 24
+ */
+int32_t
+test5(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_rib_conf config;
+
+	uint32_t ip = IPv4(190, 2, 0, 0);
+	uint64_t next_hop_add = 10;
+	uint64_t next_hop_return = 20;
+	uint64_t next_hop_default = 14;
+	uint8_t depth = 24;
+	uint32_t status = 0;
+
+	config.type = RTE_RIB_DIR24_8;
+	config.max_nodes = MAX_RULES;
+	config.node_sz = sizeof(struct rte_rib_node);
+	config.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_4B;
+	config.fib_conf.dir24_8.num_tbl8 = NUMBER_TBL8S;
+	config.fib_conf.dir24_8.def_nh = next_hop_default;
+
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(rib != NULL);
+
+	status = rte_rib_add(rib, ip, depth, next_hop_add);
+	TEST_RIB_ASSERT(status == 0);
+
+	status = rte_rib_fib_lookup_bulk(rib, &ip, &next_hop_return, 1);
+	TEST_RIB_ASSERT((status == 0) && (next_hop_return == next_hop_add));
+
+	status = rte_rib_delete(rib, ip, depth);
+	TEST_RIB_ASSERT(status == 0);
+	status = rte_rib_fib_lookup_bulk(rib, &ip, &next_hop_return, 1);
+	TEST_RIB_ASSERT(next_hop_return == next_hop_default);
+
+	rte_rib_free(rib);
+
+	return PASS;
+}
+
+/*
+ * Do all unit tests.
+ */
+static int
+test_rib(void)
+{
+	unsigned int i;
+	int status, global_status = 0;
+
+	for (i = 0; i < NUM_RIB_TESTS; i++) {
+		status = tests[i]();
+		if (status < 0) {
+			printf("ERROR: RIB Test %u: FAIL\n", i);
+			global_status = status;
+		}
+	}
+
+	return global_status;
+}
+
+REGISTER_TEST_COMMAND(rib_autotest, test_rib);
diff --git a/test/test/test_rib_generate_rt.c b/test/test/test_rib_generate_rt.c
new file mode 100644
index 0000000..36834ed
--- /dev/null
+++ b/test/test/test_rib_generate_rt.c
@@ -0,0 +1,297 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Vladimir Medvedkin <medvedkinv@gmail.com>
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include <rte_random.h>
+#include <rte_cycles.h>
+#include <rte_ip.h>
+
+#include "test_rib_generate_rt.h"
+
+static uint32_t max_route_entries;
+static uint32_t num_route_entries;
+
+/* All following numbers of each depth of each common IP class are just
+ * got from previous large constant table in app/test/test_rib_routes.h .
+ * In order to match similar performance, they keep same depth and IP
+ * address coverage as previous constant table. These numbers don't
+ * include any private local IP address. As previous large const rule
+ * table was just dumped from a real router, there are no any IP address
+ * in class C or D.
+ */
+static struct route_rule_count rule_count = {
+	.a = { /* IP class A in which the most significant bit is 0 */
+		    0, /* depth =  1 */
+		    0, /* depth =  2 */
+		    1, /* depth =  3 */
+		    0, /* depth =  4 */
+		    2, /* depth =  5 */
+		    1, /* depth =  6 */
+		    3, /* depth =  7 */
+		  185, /* depth =  8 */
+		   26, /* depth =  9 */
+		   16, /* depth = 10 */
+		   39, /* depth = 11 */
+		  144, /* depth = 12 */
+		  233, /* depth = 13 */
+		  528, /* depth = 14 */
+		  866, /* depth = 15 */
+		 3856, /* depth = 16 */
+		 3268, /* depth = 17 */
+		 5662, /* depth = 18 */
+		17301, /* depth = 19 */
+		22226, /* depth = 20 */
+		11147, /* depth = 21 */
+		16746, /* depth = 22 */
+		17120, /* depth = 23 */
+		77578, /* depth = 24 */
+		  401, /* depth = 25 */
+		  656, /* depth = 26 */
+		 1107, /* depth = 27 */
+		 1121, /* depth = 28 */
+		 2316, /* depth = 29 */
+		  717, /* depth = 30 */
+		   10, /* depth = 31 */
+		   66  /* depth = 32 */
+	},
+	.b = { /* IP class A in which the most 2 significant bits are 10 */
+		    0, /* depth =  1 */
+		    0, /* depth =  2 */
+		    0, /* depth =  3 */
+		    0, /* depth =  4 */
+		    1, /* depth =  5 */
+		    1, /* depth =  6 */
+		    1, /* depth =  7 */
+		    3, /* depth =  8 */
+		    3, /* depth =  9 */
+		   30, /* depth = 10 */
+		   25, /* depth = 11 */
+		  168, /* depth = 12 */
+		  305, /* depth = 13 */
+		  569, /* depth = 14 */
+		 1129, /* depth = 15 */
+		50800, /* depth = 16 */
+		 1645, /* depth = 17 */
+		 1820, /* depth = 18 */
+		 3506, /* depth = 19 */
+		 3258, /* depth = 20 */
+		 3424, /* depth = 21 */
+		 4971, /* depth = 22 */
+		 6885, /* depth = 23 */
+		39771, /* depth = 24 */
+		  424, /* depth = 25 */
+		  170, /* depth = 26 */
+		  443, /* depth = 27 */
+		   92, /* depth = 28 */
+		  366, /* depth = 29 */
+		  377, /* depth = 30 */
+		    2, /* depth = 31 */
+		  200  /* depth = 32 */
+	},
+	.c = { /* IP class A in which the most 3 significant bits are 110 */
+		     0, /* depth =  1 */
+		     0, /* depth =  2 */
+		     0, /* depth =  3 */
+		     0, /* depth =  4 */
+		     0, /* depth =  5 */
+		     0, /* depth =  6 */
+		     0, /* depth =  7 */
+		    12, /* depth =  8 */
+		     8, /* depth =  9 */
+		     9, /* depth = 10 */
+		    33, /* depth = 11 */
+		    69, /* depth = 12 */
+		   237, /* depth = 13 */
+		  1007, /* depth = 14 */
+		  1717, /* depth = 15 */
+		 14663, /* depth = 16 */
+		  8070, /* depth = 17 */
+		 16185, /* depth = 18 */
+		 48261, /* depth = 19 */
+		 36870, /* depth = 20 */
+		 33960, /* depth = 21 */
+		 50638, /* depth = 22 */
+		 61422, /* depth = 23 */
+		466549, /* depth = 24 */
+		  1829, /* depth = 25 */
+		  4824, /* depth = 26 */
+		  4927, /* depth = 27 */
+		  5914, /* depth = 28 */
+		 10254, /* depth = 29 */
+		  4905, /* depth = 30 */
+		     1, /* depth = 31 */
+		   716  /* depth = 32 */
+	}
+};
+
+static void generate_random_rule_prefix(struct route_rule *rt,
+	uint32_t ip_class, uint8_t depth)
+{
+/* IP address class A, the most significant bit is 0 */
+#define IP_HEAD_MASK_A			0x00000000
+#define IP_HEAD_BIT_NUM_A		1
+
+/* IP address class B, the most significant 2 bits are 10 */
+#define IP_HEAD_MASK_B			0x80000000
+#define IP_HEAD_BIT_NUM_B		2
+
+/* IP address class C, the most significant 3 bits are 110 */
+#define IP_HEAD_MASK_C			0xC0000000
+#define IP_HEAD_BIT_NUM_C		3
+
+	uint32_t class_depth;
+	uint32_t range;
+	uint32_t mask;
+	uint32_t step;
+	uint32_t start;
+	uint32_t fixed_bit_num;
+	uint32_t ip_head_mask;
+	uint32_t rule_num;
+	uint32_t k;
+	struct route_rule *ptr_rule;
+
+	if (ip_class == IP_CLASS_A) {        /* IP Address class A */
+		fixed_bit_num = IP_HEAD_BIT_NUM_A;
+		ip_head_mask = IP_HEAD_MASK_A;
+		rule_num = rule_count.a[depth - 1];
+	} else if (ip_class == IP_CLASS_B) { /* IP Address class B */
+		fixed_bit_num = IP_HEAD_BIT_NUM_B;
+		ip_head_mask = IP_HEAD_MASK_B;
+		rule_num = rule_count.b[depth - 1];
+	} else {                             /* IP Address class C */
+		fixed_bit_num = IP_HEAD_BIT_NUM_C;
+		ip_head_mask = IP_HEAD_MASK_C;
+		rule_num = rule_count.c[depth - 1];
+	}
+
+	if ((rule_num == 0) || ((num_route_entries + rule_num) >=
+		max_route_entries))
+		return;
+
+	/* the number of rest bits which don't include the most significant
+	 * fixed bits for this IP address class
+	 */
+	class_depth = depth - fixed_bit_num;
+
+	/* range is the maximum number of rules for this depth and
+	 * this IP address class
+	 */
+	range = 1 << class_depth;
+
+	/* only mask the most depth significant generated bits
+	 * except fixed bits for IP address class
+	 */
+	mask = range - 1;
+
+	/* Widen coverage of IP address in generated rules */
+	if (range <= rule_num)
+		step = 1;
+	else
+		step = round((double)range / rule_num);
+
+	/* Only generate rest bits except the most significant
+	 * fixed bits for IP address class
+	 */
+	start = rte_rand() & mask;
+	ptr_rule = &rt[num_route_entries];
+	for (k = 0; k < rule_num; k++) {
+		ptr_rule->ip = (start << (RTE_RIB_MAXDEPTH - depth))
+			| ip_head_mask;
+		ptr_rule->depth = depth;
+		ptr_rule++;
+		start = (start + step) & mask;
+	}
+	num_route_entries += rule_num;
+}
+
+static void insert_rule_in_random_pos(struct route_rule *rt,
+	uint32_t ip, uint8_t depth)
+{
+	uint32_t pos;
+	int try_count = 0;
+	struct route_rule tmp;
+
+	do {
+		pos = rte_rand();
+		try_count++;
+	} while ((try_count < 10) && (pos > num_route_entries));
+
+	if ((pos > num_route_entries) || (pos > max_route_entries))
+		pos = num_route_entries >> 1;
+
+	tmp = rt[pos];
+	rt[pos].ip = ip;
+	rt[pos].depth = depth;
+	if (num_route_entries < max_route_entries)
+		rt[num_route_entries++] = tmp;
+}
+
+uint32_t
+generate_large_route_rule_table(uint32_t num_routes, struct route_rule *rt)
+{
+	uint32_t ip_class;
+	uint8_t  depth;
+
+	rte_srand(rte_rdtsc());
+	num_route_entries = 0;
+	max_route_entries = num_routes;
+	for (ip_class = IP_CLASS_A; ip_class <= IP_CLASS_C; ip_class++) {
+		for (depth = 1; depth <= RTE_RIB_MAXDEPTH; depth++)
+			generate_random_rule_prefix(rt, ip_class, depth);
+	}
+	/* Add following rules to keep same as previous large constant table,
+	 * they are 4 rules with private local IP address and 1 all-zeros prefix
+	 * with depth = 8.
+	 */
+	insert_rule_in_random_pos(rt, IPv4(0, 0, 0, 0), 8);
+	insert_rule_in_random_pos(rt, IPv4(10, 2, 23, 147), 32);
+	insert_rule_in_random_pos(rt, IPv4(192, 168, 100, 10), 24);
+	insert_rule_in_random_pos(rt, IPv4(192, 168, 25, 100), 24);
+	insert_rule_in_random_pos(rt, IPv4(192, 168, 129, 124), 32);
+
+	return num_route_entries;
+}
+
+void
+print_route_distribution(const struct route_rule *table, uint32_t n)
+{
+	unsigned int i, j;
+
+	printf("Route distribution per prefix width:\n");
+	printf("DEPTH    QUANTITY (PERCENT)\n");
+	printf("---------------------------\n");
+
+	/* Count depths. */
+	for (i = 1; i <= 32; i++) {
+		unsigned int depth_counter = 0;
+		double percent_hits;
+
+		for (j = 0; j < n; j++)
+			if (table[j].depth == (uint8_t) i)
+				depth_counter++;
+
+		percent_hits = ((double)depth_counter)/((double)n) * 100;
+		printf("%.2u%15u (%.2f)\n", i, depth_counter, percent_hits);
+	}
+	printf("\n");
+}
+
+void
+shuffle_rt(struct route_rule *rt, uint32_t n)
+{
+	uint32_t pos;
+	struct route_rule tmp;
+	uint32_t i;
+
+	for (i = 0; i < n; i++) {
+		pos = rte_rand() % n;
+		tmp = rt[pos];
+		rt[pos] = rt[i];
+		rt[i] = tmp;
+	}
+}
diff --git a/test/test/test_rib_generate_rt.h b/test/test/test_rib_generate_rt.h
new file mode 100644
index 0000000..90573c7
--- /dev/null
+++ b/test/test/test_rib_generate_rt.h
@@ -0,0 +1,38 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Vladimir Medvedkin <medvedkinv@gmail.com>
+ */
+
+#ifndef _TEST_RIB_GENERATE_RT_H_
+#define _TEST_RIB_GENERATE_RT_H_
+
+#define RTE_RIB_MAXDEPTH	32
+
+struct route_rule {
+	uint64_t nh;
+	uint32_t ip;
+	uint8_t depth;
+};
+
+enum {
+	IP_CLASS_A,
+	IP_CLASS_B,
+	IP_CLASS_C
+};
+
+/* struct route_rule_count defines the total number of rules in following a/b/c
+ * each item in a[]/b[]/c[] is the number of common IP address class A/B/C, not
+ * including the ones for private local network.
+ */
+struct route_rule_count {
+	uint32_t a[RTE_RIB_MAXDEPTH];
+	uint32_t b[RTE_RIB_MAXDEPTH];
+	uint32_t c[RTE_RIB_MAXDEPTH];
+};
+
+
+uint32_t generate_large_route_rule_table(uint32_t num_routes,
+	struct route_rule *rt);
+void print_route_distribution(const struct route_rule *table, uint32_t n);
+void shuffle_rt(struct route_rule *rt, uint32_t n);
+
+#endif /* _TEST_RIB_GENERATE_RT_H_ */
diff --git a/test/test/test_rib_lpm_comp.c b/test/test/test_rib_lpm_comp.c
new file mode 100644
index 0000000..ef48c8c
--- /dev/null
+++ b/test/test/test_rib_lpm_comp.c
@@ -0,0 +1,189 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Vladimir Medvedkin <medvedkinv@gmail.com>
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <rte_random.h>
+#include <rte_cycles.h>
+#include <rte_branch_prediction.h>
+#include <rte_ip.h>
+#include <rte_malloc.h>
+#include <rte_lpm.h>
+#include <rte_rib.h>
+
+#include "test.h"
+#include "test_xmmt_ops.h"
+#include "test_rib_generate_rt.h"
+
+#define TEST_RIB_ASSERT(cond) do {				\
+	if (!(cond)) {						\
+		printf("Error at line %d:\n", __LINE__);	\
+		return -1;					\
+	}							\
+} while (0)
+
+#define ITERATIONS (1 << 25)
+#define BATCH_SIZE (1 << 7)
+#define BULK_SIZE 32
+#define LPM_NH_MASK	((1 << 24) - 1)
+
+static uint64_t default_nh;
+
+static int
+test_lookup(struct rte_rib *rib, struct rte_lpm *lpm)
+{
+	static uint32_t ip_batch[BATCH_SIZE];
+	uint64_t rib_next_hops[BULK_SIZE];
+	uint32_t lpm_next_hops[BULK_SIZE];
+	int i, j, k;
+
+	for (i = 0; i < ITERATIONS; i++) {
+		for (j = 0; j < BATCH_SIZE; j++)
+			ip_batch[j] = (i << 7) + j;
+
+		for (j = 0; j < BATCH_SIZE; j += BULK_SIZE) {
+			rte_rib_fib_lookup_bulk(rib, &ip_batch[j],
+				rib_next_hops, BULK_SIZE);
+			rte_lpm_lookup_bulk(lpm, &ip_batch[j],
+				lpm_next_hops, BULK_SIZE);
+			for (k = 0; k < BULK_SIZE; k++) {
+				if (likely(lpm_next_hops[k] &
+					RTE_LPM_LOOKUP_SUCCESS))
+					lpm_next_hops[k] &= LPM_NH_MASK;
+				else
+					lpm_next_hops[k] = default_nh;
+			}
+			for (k = 0; k < BULK_SIZE; k++)
+				TEST_RIB_ASSERT(rib_next_hops[k] ==
+						lpm_next_hops[k]);
+		}
+	}
+	return 0;
+}
+
+static int
+test_rib_lpm_comp(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_lpm *lpm = NULL;
+	struct route_rule *rt = NULL;
+	unsigned int i;
+	int rib_add = 0, lpm_add = 0;
+	int ret, nh_bits, nr_tbl8;
+	uint32_t num_routes;
+	struct rte_rib_conf conf;
+	struct rte_lpm_config config;
+
+	rte_srand(rte_rdtsc());
+	default_nh = 17;
+
+	conf.max_nodes = 3000000;
+	conf.node_sz = sizeof(struct rte_rib_node);
+	conf.type = RTE_RIB_DIR24_8;
+	conf.fib_conf.dir24_8.def_nh = default_nh;
+	conf.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_8B;
+
+	nh_bits = RTE_MIN(((1 << (3 + conf.fib_conf.dir24_8.nh_sz)) - 1), 24);
+	nr_tbl8 = RTE_MIN(((1 << nh_bits) - 1), 65535);
+	config.number_tbl8s = nr_tbl8;
+	conf.fib_conf.dir24_8.num_tbl8 = nr_tbl8;
+	config.max_rules = 2000000;
+	config.flags = 0;
+
+	num_routes = 1200000;
+
+	rt = rte_zmalloc("struct route_rule *", sizeof(struct route_rule) *
+		num_routes + 5, 0);
+	TEST_RIB_ASSERT(rt != NULL);
+
+	num_routes = generate_large_route_rule_table(num_routes, rt);
+	TEST_RIB_ASSERT(num_routes != 0);
+	printf("No. routes = %u\n", (unsigned int) num_routes);
+
+	shuffle_rt(rt, num_routes);
+
+	print_route_distribution(rt, (uint32_t) num_routes);
+
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &conf);
+	TEST_RIB_ASSERT(rib != NULL);
+
+	lpm = rte_lpm_create(__func__, SOCKET_ID_ANY, &config);
+	TEST_RIB_ASSERT(lpm != NULL);
+
+	for (i = 0; i < num_routes; i++)
+		rt[i].nh = rte_rand() & ((1ULL << nh_bits) - 1);
+
+	for (i = 0; i < num_routes; i++) {
+		ret = rte_rib_add(rib, rt[i].ip, rt[i].depth, rt[i].nh);
+		if (ret == 0)
+			rib_add++;
+		else
+			continue;
+
+		ret = rte_lpm_add(lpm, rt[i].ip, rt[i].depth, rt[i].nh);
+		if (ret == 0)
+			lpm_add++;
+		else {
+			rte_rib_delete(rib, rt[i].ip, rt[i].depth);
+			rib_add--;
+		}
+	}
+	TEST_RIB_ASSERT(rib_add == lpm_add);
+
+	ret = test_lookup(rib, lpm);
+	if (ret != 0)
+		return ret;
+
+	for (i = 0; i < num_routes; i++) {
+		if ((i % 3) == 0) {
+			ret = rte_rib_delete(rib, rt[i].ip, rt[i].depth);
+			if (ret == 0)
+				rib_add--;
+			else
+				continue;
+
+			ret = rte_lpm_delete(lpm, rt[i].ip, rt[i].depth);
+			if (ret == 0)
+				lpm_add--;
+		}
+	}
+	TEST_RIB_ASSERT(rib_add == lpm_add);
+
+	ret = test_lookup(rib, lpm);
+	if (ret != 0)
+		return ret;
+
+	for (i = 0; i < num_routes; i++) {
+		if ((i % 6) == 0) {
+			ret = rte_rib_add(rib, rt[i].ip, rt[i].depth, rt[i].nh);
+			if (ret == 0)
+				rib_add++;
+			else
+				continue;
+
+			ret = rte_lpm_add(lpm, rt[i].ip, rt[i].depth, rt[i].nh);
+			if (ret == 0)
+				lpm_add++;
+			else {
+				rte_rib_delete(rib, rt[i].ip, rt[i].depth);
+				rib_add--;
+			}
+		}
+	}
+	TEST_RIB_ASSERT(rib_add == lpm_add);
+
+	ret = test_lookup(rib, lpm);
+	if (ret != 0)
+		return ret;
+
+	rte_rib_free(rib);
+	rte_lpm_free(lpm);
+	rte_free(rt);
+
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(rib_lpm_comp_autotest, test_rib_lpm_comp);
diff --git a/test/test/test_rib_perf.c b/test/test/test_rib_perf.c
new file mode 100644
index 0000000..42fbd1e
--- /dev/null
+++ b/test/test/test_rib_perf.c
@@ -0,0 +1,145 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Vladimir Medvedkin <medvedkinv@gmail.com>
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <rte_cycles.h>
+#include <rte_random.h>
+#include <rte_branch_prediction.h>
+#include <rte_ip.h>
+#include <rte_malloc.h>
+#include <rte_rib.h>
+#include <rte_dir24_8.h>
+
+#include "test.h"
+#include "test_xmmt_ops.h"
+#include "test_rib_generate_rt.h"
+
+#define TEST_RIB_ASSERT(cond) do {				\
+	if (!(cond)) {						\
+		printf("Error at line %d:\n", __LINE__);	\
+		return -1;					\
+	}							\
+} while (0)
+
+#define ITERATIONS (1 << 15)
+#define BATCH_SIZE (1 << 12)
+#define BULK_SIZE 32
+
+#define NH_MSK(nh_sz)	((1ULL << ((1 << (3 + nh_sz)) - 1)) - 1)
+
+static int
+test_rib_perf(void)
+{
+	struct rte_rib *rib = NULL;
+	struct rte_rib_conf conf;
+	struct route_rule *rt;
+	uint64_t begin, total_time;
+	uint64_t next_hop_add;
+	uint64_t default_nh = 0;
+	int64_t count = 0;
+	unsigned int i, j;
+	int status = 0;
+	int ret, nh_bits, nr_tbl8;
+	uint32_t num_routes;
+
+	conf.max_nodes = 3000000;
+	conf.node_sz = sizeof(struct rte_rib_node);
+	conf.type = RTE_RIB_DIR24_8;
+	conf.fib_conf.dir24_8.def_nh = default_nh;
+	conf.fib_conf.dir24_8.nh_sz = RTE_DIR24_8_8B;
+
+	rte_srand(rte_rdtsc());
+
+	nh_bits = RTE_MIN(((1 << (3 + conf.fib_conf.dir24_8.nh_sz)) - 1), 24);
+	nr_tbl8 = RTE_MIN(((1 << nh_bits) - 1), 131071);
+	conf.fib_conf.dir24_8.num_tbl8 = nr_tbl8;
+	num_routes = 1200000;
+
+	rt = rte_zmalloc("struct route_rule *", sizeof(struct route_rule) *
+		num_routes, 0);
+	TEST_RIB_ASSERT(rt != NULL);
+
+	num_routes = generate_large_route_rule_table(num_routes, rt);
+	TEST_RIB_ASSERT(num_routes != 0);
+
+	printf("No. routes = %u\n", (unsigned int) num_routes);
+
+	shuffle_rt(rt, num_routes);
+
+	print_route_distribution(rt, (uint32_t) num_routes);
+
+	rib = rte_rib_create(__func__, SOCKET_ID_ANY, &conf);
+	TEST_RIB_ASSERT(rib != NULL);
+
+	/* Measue add. */
+	begin = rte_rdtsc();
+
+	for (i = 0; i < num_routes; i++) {
+		do {
+			next_hop_add = rte_rand() & NH_MSK(conf.fib_conf.dir24_8.nh_sz);
+		} while (next_hop_add == default_nh);
+
+		ret = rte_rib_add(rib, rt[i].ip, rt[i].depth, next_hop_add);
+		if ((ret == 0))
+			status++;
+	}
+
+	total_time = rte_rdtsc() - begin;
+
+	printf("Unique added entries = %d\n", status);
+	printf("Average RIB Add: %g cycles\n",
+			(double)total_time / num_routes);
+
+	/* Measure bulk Lookup */
+	total_time = 0;
+	count = 0;
+	for (i = 0; i < ITERATIONS; i++) {
+		static uint32_t ip_batch[BATCH_SIZE];
+		uint64_t next_hops[BULK_SIZE];
+
+		/* Create array of random IP addresses */
+		for (j = 0; j < BATCH_SIZE; j++)
+			ip_batch[j] = rte_rand();
+
+		/* Lookup per batch */
+		begin = rte_rdtsc();
+		for (j = 0; j < BATCH_SIZE; j += BULK_SIZE)
+			rte_rib_fib_lookup_bulk(rib, &ip_batch[j], next_hops,
+				BULK_SIZE);
+
+		total_time += rte_rdtsc() - begin;
+		for (j = 0; j < BULK_SIZE; j++) {
+			if (next_hops[j] == default_nh)
+				count++;
+		}
+	}
+	printf("BULK RIB Lookup: %.1f cycles (fails = %.1f%%)\n",
+			(double)total_time / ((double)ITERATIONS * BATCH_SIZE),
+			(count * 100.0) / (double)(ITERATIONS * BATCH_SIZE));
+
+	/* Delete */
+	status = 0;
+	begin = rte_rdtsc();
+
+	for (i = 0; i < num_routes; i++) {
+		ret = rte_rib_delete(rib, rt[i].ip, rt[i].depth);
+		if (ret == 0)
+			status++;
+	}
+
+	total_time = rte_rdtsc() - begin;
+
+	printf("Average RIB Delete: %g cycles\n",
+			(double)total_time / num_routes);
+
+	rte_rib_free(rib);
+	rte_free(rt);
+
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(rib_perf_autotest, test_rib_perf);