diff mbox

[API-NEXT,PATCHv5,6/6] validation: tm: add cunit test for traffic mngr

Message ID 1456095520-1567-6-git-send-email-bill.fischofer@linaro.org
State New
Headers show

Commit Message

Bill Fischofer Feb. 21, 2016, 10:58 p.m. UTC
Signed-off-by: Bill Fischofer <bill.fischofer@linaro.org>
---
 configure.ac                                     |    1 +
 test/validation/Makefile.am                      |    1 +
 test/validation/traffic_mngr/.gitignore          |    1 +
 test/validation/traffic_mngr/Makefile.am         |   10 +
 test/validation/traffic_mngr/traffic_mngr.c      | 2422 ++++++++++++++++++++++
 test/validation/traffic_mngr/traffic_mngr.h      |   38 +
 test/validation/traffic_mngr/traffic_mngr_main.c |   12 +
 7 files changed, 2485 insertions(+)
 create mode 100644 test/validation/traffic_mngr/.gitignore
 create mode 100644 test/validation/traffic_mngr/Makefile.am
 create mode 100644 test/validation/traffic_mngr/traffic_mngr.c
 create mode 100644 test/validation/traffic_mngr/traffic_mngr.h
 create mode 100644 test/validation/traffic_mngr/traffic_mngr_main.c
diff mbox

Patch

diff --git a/configure.ac b/configure.ac
index 1aa44d2..099a2d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -362,6 +362,7 @@  AC_CONFIG_FILES([Makefile
 		 test/validation/thread/Makefile
 		 test/validation/time/Makefile
 		 test/validation/timer/Makefile
+		 test/validation/traffic_mngr/Makefile
 		 test/validation/shmem/Makefile
 		 test/validation/system/Makefile
 		 test/miscellaneous/Makefile
diff --git a/test/validation/Makefile.am b/test/validation/Makefile.am
index cdd5a84..074da26 100644
--- a/test/validation/Makefile.am
+++ b/test/validation/Makefile.am
@@ -19,6 +19,7 @@  ODP_MODULES = atomic \
 	      thread \
 	      time \
 	      timer \
+	      traffic_mngr \
 	      shmem \
 	      system
 
diff --git a/test/validation/traffic_mngr/.gitignore b/test/validation/traffic_mngr/.gitignore
new file mode 100644
index 0000000..efd07a2
--- /dev/null
+++ b/test/validation/traffic_mngr/.gitignore
@@ -0,0 +1 @@ 
+traffic_mngr_main
diff --git a/test/validation/traffic_mngr/Makefile.am b/test/validation/traffic_mngr/Makefile.am
new file mode 100644
index 0000000..35e689a
--- /dev/null
+++ b/test/validation/traffic_mngr/Makefile.am
@@ -0,0 +1,10 @@ 
+include ../Makefile.inc
+
+noinst_LTLIBRARIES = libtesttraffic_mngr.la
+libtesttraffic_mngr_la_SOURCES = traffic_mngr.c
+
+test_PROGRAMS = traffic_mngr_main$(EXEEXT)
+dist_traffic_mngr_main_SOURCES = traffic_mngr_main.c
+traffic_mngr_main_LDADD = libtesttraffic_mngr.la -lm $(LIBCUNIT_COMMON) $(LIBODP)
+
+EXTRA_DIST = traffic_mngr.h
diff --git a/test/validation/traffic_mngr/traffic_mngr.c b/test/validation/traffic_mngr/traffic_mngr.c
new file mode 100644
index 0000000..b722787
--- /dev/null
+++ b/test/validation/traffic_mngr/traffic_mngr.c
@@ -0,0 +1,2422 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	BSD-3-Clause
+ */
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include <unistd.h>
+#include <math.h>
+#include <odp.h>
+#include <odp/helper/eth.h>
+#include <odp/helper/ip.h>
+#include <odp/helper/udp.h>
+#include "odp_cunit_common.h"
+#include "traffic_mngr.h"
+
+#define MAX_NUM_IFACES           2
+#define MAX_TM_SYSTEMS           3
+#define NUM_LEVELS               3
+#define NUM_PRIORITIES           4
+#define NUM_QUEUES_PER_NODE      NUM_PRIORITIES
+#define FANIN_RATIO              8
+#define NUM_LEVEL0_TM_NODES      1
+#define NUM_LEVEL1_TM_NODES      FANIN_RATIO
+#define NUM_LEVEL2_TM_NODES      (FANIN_RATIO * FANIN_RATIO)
+#define NUM_TM_QUEUES            (NUM_LEVEL2_TM_NODES * NUM_QUEUES_PER_NODE)
+#define NUM_SHAPER_PROFILES      FANIN_RATIO
+#define NUM_SCHED_PROFILES       FANIN_RATIO
+#define NUM_THRESHOLD_PROFILES   NUM_QUEUES_PER_NODE
+#define NUM_WRED_PROFILES        NUM_QUEUES_PER_NODE
+
+#define ODP_NUM_PKT_COLORS       ODP_NUM_PACKET_COLORS
+#define PKT_GREEN                ODP_PACKET_GREEN
+#define PKT_YELLOW               ODP_PACKET_YELLOW
+#define PKT_RED                  ODP_PACKET_RED
+
+#define MIN_COMMIT_BW            (64 * 1024)
+#define MIN_COMMIT_BURST         8000
+#define MIN_PEAK_BW              2000000
+#define MIN_PEAK_BURST           16000
+
+#define MIN_PKT_THRESHOLD        10
+#define MIN_BYTE_THRESHOLD       2048
+
+#define MIN_WRED_THRESH          5
+#define MED_WRED_THRESH          10
+#define MED_DROP_PROB            4
+#define MAX_DROP_PROB            8
+
+#define MAX_PKTS                 1000
+#define PKT_BUF_SIZE             1460
+#define MAX_PAYLOAD              1400
+#define SHAPER_LEN_ADJ           20
+#define CRC_LEN                  4
+#define TM_NAME_LEN              32
+#define BILLION                  1000000000ULL
+#define MS                       1000000  /* Millisecond in units of NS */
+#define MBPS                     1000000
+#define GBPS                     1000000000
+
+#define MIN(a, b)  (((a) <= (b)) ? (a) : (b))
+#define MAX(a, b)  (((a) <= (b)) ? (b) : (a))
+
+#define TM_PERCENT(percent) ((uint32_t)(100 * percent))
+
+typedef enum {
+	SHAPER_PROFILE, SCHED_PROFILE, THRESHOLD_PROFILE, WRED_PROFILE
+} profile_kind_t;
+
+typedef struct {
+	uint32_t       num_queues;
+	odp_tm_queue_t tm_queues[0];
+} tm_queue_desc_t;
+
+typedef struct tm_node_desc_s tm_node_desc_t;
+
+struct tm_node_desc_s {
+	uint32_t         level;
+	uint32_t         node_idx;
+	uint32_t         num_children;
+	char            *node_name;
+	odp_tm_node_t    node;
+	odp_tm_node_t    parent_node;
+	tm_queue_desc_t *queue_desc;
+	tm_node_desc_t  *children[0];
+};
+
+typedef struct {
+	uint32_t num_samples;
+	uint32_t min_rcv_gap;
+	uint32_t max_rcv_gap;
+	uint32_t total_rcv_gap;
+	uint64_t total_rcv_gap_squared;
+	uint32_t avg_rcv_gap;
+	uint32_t std_dev_gap;
+} rcv_stats_t;
+
+typedef struct {
+	odp_time_t     xmt_time;
+	odp_time_t     rcv_time;
+	uint64_t       delta_ns;
+	odp_tm_queue_t tm_queue;
+	uint16_t       pkt_len;
+	uint16_t       xmt_ident;
+	uint8_t        pkt_class;
+	uint8_t        was_rcvd;
+} xmt_pkt_desc_t;
+
+typedef struct {
+	odp_time_t      rcv_time;
+	xmt_pkt_desc_t *xmt_pkt_desc;
+	uint16_t        rcv_ident;
+	uint8_t         pkt_class;
+} rcv_pkt_desc_t;
+
+typedef struct {
+	odp_tm_percent_t confidence_percent;
+	odp_tm_percent_t drop_percent;
+	uint32_t         min_cnt;
+	uint32_t         max_cnt;
+} wred_pkt_cnts_t;
+
+typedef struct {
+	uint32_t       num_queues;
+	uint32_t       priority;
+	odp_tm_queue_t tm_queues[NUM_LEVEL2_TM_NODES];
+} queue_array_t;
+
+typedef struct {
+	queue_array_t queue_array[NUM_PRIORITIES];
+} queues_set_t;
+
+static const char ALPHABET[] =
+	"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+/* The following constant table determines the minimum and maximum number of
+ * pkts that will be received when sending 100 pkts through a system with a
+ * drop probability of p% (using a uniform probability distribution), with a
+ * confidence of 99.9% 99.99% and 99.999%. The confidence is interepreted as
+ * follows: a 99.99% confidence says that receiving LESS pkts than the given
+ * minimum or receiving MORE pkts than the given maximum (assuming a uniform
+ * drop percent of p) will happen less than 1 time in 10,000 trials.
+ * Mathematically the minimum pkt cnt is the largest value of cnt
+ * that satisfies the following equation:
+ * "(1 - cf/100)/2 <= Sum(binomial(100,k) * (1-p)^k * p^(100-k), k=0..cnt)",
+ * where cf is the confidence, caret (^) represents exponentiation,
+ * binomial(n,k) is the binomial coefficient defined as n! / (k! * (n-k)!).
+ * and p is the drop probability.  Similarly the maximum pkt cnt is the
+ * smallest value of cnt that satisfies the equation:
+ * "(1 - cf/100)/2 <= Sum(binomial(100,k) * (1-p)^k * p^(100-k), k=cnt..100)".
+ * As a consequence of this, it should be the case that:
+ * cf/100 <= Sum(binomial(100,k) * (1-p)^k * p^(100-k), k=min..max)".
+ */
+static wred_pkt_cnts_t EXPECTED_PKT_RCVD[] = {
+	{ TM_PERCENT(99.0), TM_PERCENT(10.0), 82, 97 },
+	{ TM_PERCENT(99.0), TM_PERCENT(20.0), 69, 90 },
+	{ TM_PERCENT(99.0), TM_PERCENT(30.0), 58, 81 },
+	{ TM_PERCENT(99.0), TM_PERCENT(40.0), 47, 72 },
+	{ TM_PERCENT(99.0), TM_PERCENT(50.0), 37, 63 },
+	{ TM_PERCENT(99.0), TM_PERCENT(60.0), 28, 53 },
+	{ TM_PERCENT(99.0), TM_PERCENT(70.0), 19, 42 },
+	{ TM_PERCENT(99.0), TM_PERCENT(80.0), 10, 31 },
+	{ TM_PERCENT(99.0), TM_PERCENT(90.0),  3, 18 },
+
+	{ TM_PERCENT(99.9), TM_PERCENT(10.0), 79, 98 },
+	{ TM_PERCENT(99.9), TM_PERCENT(20.0), 66, 92 },
+	{ TM_PERCENT(99.9), TM_PERCENT(30.0), 54, 84 },
+	{ TM_PERCENT(99.9), TM_PERCENT(40.0), 44, 76 },
+	{ TM_PERCENT(99.9), TM_PERCENT(50.0), 34, 66 },
+	{ TM_PERCENT(99.9), TM_PERCENT(60.0), 24, 56 },
+	{ TM_PERCENT(99.9), TM_PERCENT(70.0), 16, 46 },
+	{ TM_PERCENT(99.9), TM_PERCENT(80.0),  8, 34 },
+	{ TM_PERCENT(99.9), TM_PERCENT(90.0),  2, 21 },
+
+	{ TM_PERCENT(99.99), TM_PERCENT(10.0), 77, 99 },
+	{ TM_PERCENT(99.99), TM_PERCENT(20.0), 63, 94 },
+	{ TM_PERCENT(99.99), TM_PERCENT(30.0), 51, 87 },
+	{ TM_PERCENT(99.99), TM_PERCENT(40.0), 41, 78 },
+	{ TM_PERCENT(99.99), TM_PERCENT(50.0), 31, 69 },
+	{ TM_PERCENT(99.99), TM_PERCENT(60.0), 22, 59 },
+	{ TM_PERCENT(99.99), TM_PERCENT(70.0), 13, 49 },
+	{ TM_PERCENT(99.99), TM_PERCENT(80.0),  6, 37 },
+	{ TM_PERCENT(99.99), TM_PERCENT(90.0),  1, 23 },
+};
+
+static uint8_t EQUAL_WEIGHTS[FANIN_RATIO] = {
+	16, 16, 16, 16, 16, 16, 16, 16
+};
+
+static uint8_t INCREASING_WEIGHTS[FANIN_RATIO] = {
+	8, 12, 16, 24, 32, 48, 64, 96
+};
+
+static odp_tm_t        odp_tm_systems[MAX_TM_SYSTEMS];
+static tm_node_desc_t *root_node_descs[MAX_TM_SYSTEMS];
+static uint32_t        num_odp_tm_systems;
+
+static odp_tm_shaper_t    shaper_profiles[NUM_SHAPER_PROFILES];
+static odp_tm_sched_t     sched_profiles[NUM_SCHED_PROFILES];
+static odp_tm_threshold_t threshold_profiles[NUM_THRESHOLD_PROFILES];
+static odp_tm_wred_t      wred_profiles[NUM_WRED_PROFILES][ODP_NUM_PKT_COLORS];
+
+static odp_tm_sched_t     sched_profiles[NUM_SCHED_PROFILES];
+static odp_tm_threshold_t threshold_profiles[NUM_THRESHOLD_PROFILES];
+static odp_tm_wred_t      wred_profiles[NUM_WRED_PROFILES][ODP_NUM_PKT_COLORS];
+
+static uint8_t payload_data[MAX_PAYLOAD];
+
+static odp_packet_t   xmt_pkts[MAX_PKTS];
+static xmt_pkt_desc_t xmt_pkt_descs[MAX_PKTS];
+static uint32_t       num_pkts_made;
+static uint32_t       num_pkts_sent;
+
+static odp_packet_t   rcv_pkts[MAX_PKTS];
+static rcv_pkt_desc_t rcv_pkt_descs[MAX_PKTS];
+static uint32_t       num_rcv_pkts;
+
+static queues_set_t queues_set;
+static uint32_t ip_ident_list[MAX_PKTS];
+
+/* interface names used for testing */
+static const char *iface_name[MAX_NUM_IFACES];
+
+/** number of interfaces being used (1=loopback, 2=pair) */
+static uint32_t num_ifaces;
+
+static odp_pool_t pools[MAX_NUM_IFACES] = {ODP_POOL_INVALID, ODP_POOL_INVALID};
+
+static odp_pktio_t pktios[MAX_NUM_IFACES];
+static odp_pktin_queue_t pktins[MAX_NUM_IFACES];
+static odp_pktout_queue_t pktouts[MAX_NUM_IFACES];
+static odp_pktin_queue_t rcv_pktin;
+static odp_pktout_queue_t xmt_pktout;
+
+static odph_ethaddr_t src_mac;
+static odph_ethaddr_t dst_mac;
+
+static odp_atomic_u32_t cpu_ip_ident;
+
+static void busy_wait(uint64_t nanoseconds)
+{
+	odp_time_t start_time, end_time;
+
+	start_time = odp_time_local();
+	end_time   = odp_time_sum(start_time,
+				  odp_time_local_from_ns(nanoseconds));
+
+	while (odp_time_cmp(odp_time_local(), end_time) < 0)
+		odp_cpu_pause();
+}
+
+static odp_bool_t approx_eq32(uint32_t val, uint32_t correct)
+{
+	uint64_t low_bound, val_times_100, high_bound;
+
+	if (val == correct)
+		return true;
+
+	low_bound     = 98  * (uint64_t)correct;
+	val_times_100 = 100 * (uint64_t)val;
+	high_bound    = 102 * (uint64_t)correct;
+
+	if ((low_bound <= val_times_100) && (val_times_100 <= high_bound))
+		return true;
+	else
+		return false;
+}
+
+static odp_bool_t approx_eq64(uint64_t val, uint64_t correct)
+{
+	uint64_t low_bound, val_times_100, high_bound;
+
+	if (val == correct)
+		return true;
+
+	low_bound     = 98  * correct;
+	val_times_100 = 100 * val;
+	high_bound    = 102 * correct;
+
+	if ((low_bound <= val_times_100) && (val_times_100 <= high_bound))
+		return true;
+	else
+		return false;
+}
+
+static int open_pktios(void)
+{
+	odp_pktio_param_t pktio_param;
+	odp_pool_param_t  pool_param;
+	odp_pktio_t       pktio;
+	odp_pool_t        pkt_pool;
+	odp_time_t        start_time, duration;
+	uint64_t          duration_ns;
+	uint32_t          iface;
+	char              pool_name[ODP_POOL_NAME_LEN];
+	int               rc, ret;
+
+	odp_pool_param_init(&pool_param);
+	pool_param.pkt.num  = 10 * MAX_PKTS;
+	pool_param.type     = ODP_POOL_PACKET;
+
+	odp_pktio_param_init(&pktio_param);
+	pktio_param.in_mode  = ODP_PKTIN_MODE_DIRECT;
+	pktio_param.out_mode = ODP_PKTOUT_MODE_DIRECT;
+
+	for (iface = 0; iface < num_ifaces; iface++) {
+		snprintf(pool_name, sizeof(pool_name), "pkt_pool_%s",
+			 iface_name[iface]);
+
+		pkt_pool = odp_pool_create(pool_name, &pool_param);
+		if (pkt_pool == ODP_POOL_INVALID) {
+			CU_FAIL("unable to create pool");
+			return -1;
+		}
+
+		pools[iface] = pkt_pool;
+		pktio = odp_pktio_open(iface_name[iface], pkt_pool,
+				       &pktio_param);
+		if (pktio == ODP_PKTIO_INVALID)
+			pktio = odp_pktio_lookup(iface_name[iface]);
+
+		pktios[iface] = pktio;
+		if (pktio == ODP_PKTIO_INVALID) {
+			printf("%s odp_pktio_open() failed\n", __func__);
+			return -1;
+		}
+
+		if (odp_pktin_queue(pktio, &pktins[iface], 1) != 1) {
+			odp_pktio_close(pktio);
+			printf("%s odp_pktio_open() failed: no pktin queue\n",
+			       __func__);
+			return -1;
+		}
+
+		if (odp_pktout_queue(pktio, &pktouts[iface], 1) != 1) {
+			odp_pktio_close(pktio);
+			printf("%s odp_pktio_open() failed: no pktout queue\n",
+			       __func__);
+			return -1;
+		}
+
+		rc = -1;
+		if (iface == 0)
+			rc = odp_pktio_mac_addr(pktio, &src_mac,
+						ODPH_ETHADDR_LEN);
+
+		if ((iface == 1) || (num_ifaces == 1))
+			rc = odp_pktio_mac_addr(pktio, &dst_mac,
+						ODPH_ETHADDR_LEN);
+
+		if (rc != ODPH_ETHADDR_LEN) {
+			printf("%s odp_pktio_mac_addr() failed\n", __func__);
+			return -1;
+		}
+	}
+
+	if (2 <= num_ifaces) {
+		xmt_pktout = pktouts[0];
+		rcv_pktin  = pktins[1];
+		ret = odp_pktio_start(pktios[1]);
+		if (ret != 0)
+			return -1;
+	} else {
+		xmt_pktout = pktouts[0];
+		rcv_pktin  = pktins[0];
+	}
+
+	ret = odp_pktio_start(pktios[0]);
+	if (ret != 0)
+		return -1;
+
+	/* Now wait until the link or links are up. */
+	start_time = odp_time_local();
+	while (odp_pktio_link_status(pktios[0]) != 1) {
+		duration     = odp_time_diff(odp_time_local(), start_time);
+		duration_ns  = odp_time_to_ns(duration);
+		if (ODP_TIME_SEC_IN_NS <= duration_ns)
+			return -1;
+
+		busy_wait(10000);
+	}
+
+	if (num_ifaces < 2)
+		return 0;
+
+	while (odp_pktio_link_status(pktios[1]) != 1) {
+		duration     = odp_time_diff(odp_time_local(), start_time);
+		duration_ns  = odp_time_to_ns(duration);
+		if (ODP_TIME_SEC_IN_NS <= duration_ns)
+			return -1;
+
+		busy_wait(10000);
+	}
+
+	return 0;
+}
+
+static odp_packet_t make_pkt(odp_pool_t pkt_pool,
+			     uint32_t   payload_len,
+			     uint16_t   ip_ident,
+			     uint8_t    pkt_class)
+{
+	odph_ipv4hdr_t *ip;
+	odph_ethhdr_t  *eth;
+	odph_udphdr_t  *udp;
+	odp_packet_t    odp_pkt;
+	uint32_t        udp_len, ipv4_len, eth_len, l3_offset, l4_offset;
+	uint32_t        pkt_len, app_offset;
+	uint8_t        *buf, *pkt_class_ptr;
+	int             rc;
+
+	udp_len = payload_len + sizeof(odph_udphdr_t);
+	ipv4_len = udp_len + ODPH_IPV4HDR_LEN;
+	eth_len = ipv4_len + ODPH_ETHHDR_LEN;
+	pkt_len = eth_len;
+
+	odp_pkt = odp_packet_alloc(pkt_pool, eth_len);
+	if (odp_pkt == ODP_PACKET_INVALID)
+		return ODP_PACKET_INVALID;
+
+	buf = odp_packet_data(odp_pkt);
+
+	/* Ethernet Header */
+	odp_packet_l2_offset_set(odp_pkt, 0);
+	eth = (odph_ethhdr_t *)buf;
+	memcpy(eth->src.addr, &src_mac, ODPH_ETHADDR_LEN);
+	memcpy(eth->dst.addr, &dst_mac, ODPH_ETHADDR_LEN);
+	eth->type = odp_cpu_to_be_16(ODPH_ETHTYPE_IPV4);
+
+	/* IPv4 Header */
+	l3_offset = ODPH_ETHHDR_LEN;
+	odp_packet_l3_offset_set(odp_pkt, l3_offset);
+	ip = (odph_ipv4hdr_t *)(buf + l3_offset);
+	ip->dst_addr = odp_cpu_to_be_32(0x0a000064);
+	ip->src_addr = odp_cpu_to_be_32(0x0a000001);
+	ip->ver_ihl = ODPH_IPV4 << 4 | ODPH_IPV4HDR_IHL_MIN;
+	ip->tot_len = odp_cpu_to_be_16(pkt_len - ODPH_ETHHDR_LEN);
+	ip->ttl = 128;
+	ip->proto = ODPH_IPPROTO_UDP;
+	ip->id = odp_cpu_to_be_16(ip_ident);
+
+	/* UDP Header */
+	l4_offset = l3_offset + ODPH_IPV4HDR_LEN;
+	odp_packet_l4_offset_set(odp_pkt, l4_offset);
+	udp = (odph_udphdr_t *)(buf + l4_offset);
+	udp->src_port = odp_cpu_to_be_16(12049);
+	udp->dst_port = odp_cpu_to_be_16(12050);
+	udp->length = odp_cpu_to_be_16(pkt_len -
+				       ODPH_ETHHDR_LEN - ODPH_IPV4HDR_LEN);
+
+	app_offset = l4_offset + ODPH_UDPHDR_LEN;
+	rc = odp_packet_copydata_in(odp_pkt, app_offset, payload_len,
+				    payload_data);
+	CU_ASSERT_FATAL(rc == 0);
+
+	pkt_class_ptr = odp_packet_offset(odp_pkt, app_offset, NULL, NULL);
+	CU_ASSERT_FATAL(pkt_class_ptr != NULL);
+	*pkt_class_ptr = pkt_class;
+
+	/* Calculate and insert checksums. */
+	ip->chksum = 0;
+	udp->chksum = 0;
+	odph_ipv4_csum_update(odp_pkt);
+	udp->chksum = odph_ipv4_udp_chksum(odp_pkt);
+	return odp_pkt;
+}
+
+static xmt_pkt_desc_t *find_matching_xmt_pkt_desc(uint16_t ip_ident)
+{
+	xmt_pkt_desc_t *xmt_pkt_desc;
+	uint32_t        xmt_pkt_idx;
+
+	for (xmt_pkt_idx = 0; xmt_pkt_idx < num_pkts_sent; xmt_pkt_idx++) {
+		xmt_pkt_desc = &xmt_pkt_descs[xmt_pkt_idx];
+		if (xmt_pkt_desc->xmt_ident == ip_ident)
+			return xmt_pkt_desc;
+	}
+
+	return NULL;
+}
+
+static int receive_pkts(odp_tm_t          odp_tm,
+			odp_pktin_queue_t pktin,
+			uint32_t          num_pkts,
+			uint64_t          rate_bps)
+{
+	xmt_pkt_desc_t *xmt_pkt_desc;
+	odp_packet_t    rcv_pkt;
+	odp_time_t      start_time, current_time, duration, xmt_time;
+	odp_time_t      rcv_time, delta_time;
+	uint64_t        temp1, timeout_ns, duration_ns, delta_ns;
+	uint32_t        pkts_rcvd, rcv_idx, ident_offset, l4_offset, app_offset;
+	uint16_t        be_ip_ident, ident;
+	uint8_t        *pkt_class_ptr, pkt_class;
+	int             rc;
+
+	temp1      = (1000000ULL * 10000ULL * (uint64_t)num_pkts) / rate_bps;
+	timeout_ns = 1000ULL * ((4ULL * temp1) + 10000ULL);
+
+	pkts_rcvd   = 0;
+	start_time  = odp_time_local();
+	duration_ns = 0;
+
+	while ((pkts_rcvd < num_pkts) || (!odp_tm_is_idle(odp_tm))) {
+		rc = odp_pktin_recv(pktin, &rcv_pkts[pkts_rcvd], 1);
+		if (rc < 0)
+			return rc;
+
+		current_time = odp_time_local();
+		duration     = odp_time_diff(current_time, start_time);
+		duration_ns  = odp_time_to_ns(duration);
+		if (rc == 1)
+			rcv_pkt_descs[pkts_rcvd++].rcv_time = current_time;
+		else if (timeout_ns < duration_ns)
+			break;
+	}
+
+	/* Now go through matching the rcv pkts to the xmt pkts, determining
+	 * which xmt_pkts were lost and for the ones that did arrive, how
+	 * long did they take. We don't do this work while receiving the pkts
+	 * in the loop above because we want to try to get as accurate a
+	 * rcv timestamp as possible. */
+	for (rcv_idx = 0; rcv_idx < pkts_rcvd; rcv_idx++) {
+		rcv_pkt      = rcv_pkts[rcv_idx];
+		ident_offset = ODPH_ETHHDR_LEN + offsetof(odph_ipv4hdr_t, id);
+
+		odp_packet_copydata_out(rcv_pkt, ident_offset, 2, &be_ip_ident);
+		ident = odp_be_to_cpu_16(be_ip_ident);
+		rcv_pkt_descs[rcv_idx].rcv_ident = ident;
+
+		l4_offset     = odp_packet_l4_offset(rcv_pkt);
+		app_offset    = l4_offset + ODPH_UDPHDR_LEN;
+		pkt_class_ptr = odp_packet_offset(rcv_pkt, app_offset,
+						  NULL, NULL);
+		CU_ASSERT_FATAL(pkt_class_ptr != NULL);
+		rcv_pkt_descs[rcv_idx].pkt_class = *pkt_class_ptr;
+
+		xmt_pkt_desc = find_matching_xmt_pkt_desc(ident);
+		if (xmt_pkt_desc != NULL) {
+			rcv_pkt_descs[rcv_idx].xmt_pkt_desc = xmt_pkt_desc;
+			xmt_time   = xmt_pkt_desc->xmt_time;
+			rcv_time   = rcv_pkt_descs[rcv_idx].rcv_time;
+			pkt_class  = rcv_pkt_descs[rcv_idx].pkt_class;
+			delta_time = odp_time_diff(rcv_time, xmt_time);
+			delta_ns   = odp_time_to_ns(delta_time);
+
+			xmt_pkt_desc->rcv_time  = rcv_time;
+			xmt_pkt_desc->delta_ns  = delta_ns;
+			xmt_pkt_desc->pkt_class = pkt_class;
+			xmt_pkt_desc->was_rcvd  = 1;
+		}
+	}
+
+	return pkts_rcvd;
+}
+
+static void free_rcvd_pkts(void)
+{
+	odp_packet_t rcv_pkt;
+	uint32_t     rcv_idx;
+
+	/* Go through all of the received pkts and free them. */
+	for (rcv_idx = 0; rcv_idx < num_rcv_pkts; rcv_idx++) {
+		rcv_pkt = rcv_pkts[rcv_idx];
+		if (rcv_pkt != ODP_PACKET_INVALID) {
+			odp_packet_free(rcv_pkt);
+			rcv_pkts[rcv_idx] = ODP_PACKET_INVALID;
+		}
+	}
+}
+
+static void flush_leftover_pkts(odp_tm_t odp_tm, odp_pktin_queue_t pktin)
+{
+	odp_packet_t rcv_pkt;
+	odp_time_t   start_time, current_time, duration;
+	uint64_t     min_timeout_ns, max_timeout_ns, duration_ns;
+	int          rc;
+
+	/* Set the timeout to be at least 10 milliseconds and at most 100
+	 * milliseconds */
+	min_timeout_ns = 10 * ODP_TIME_MSEC_IN_NS;
+	max_timeout_ns = 100 * ODP_TIME_MSEC_IN_NS;
+	start_time     = odp_time_local();
+
+	while (true) {
+		rc = odp_pktin_recv(pktin, &rcv_pkt, 1);
+		if (rc == 1)
+			odp_packet_free(rcv_pkt);
+
+		current_time = odp_time_local();
+		duration     = odp_time_diff(current_time, start_time);
+		duration_ns  = odp_time_to_ns(duration);
+
+		if (max_timeout_ns <= duration_ns)
+			break;
+		else if (duration_ns < min_timeout_ns)
+			;
+		else if ((odp_tm_is_idle(odp_tm)) && (rc == 0))
+			break;
+
+		/* Busy wait here a little bit to prevent overwhelming the
+		 * odp_pktin_recv logic. */
+		busy_wait(10000);
+	}
+}
+
+static void init_xmt_pkts(void)
+{
+	memset(xmt_pkts, 0, sizeof(xmt_pkts));
+	memset(xmt_pkt_descs, 0, sizeof(xmt_pkt_descs));
+	num_pkts_made = 0;
+	num_pkts_sent = 0;
+
+	free_rcvd_pkts();
+	memset(rcv_pkts, 0, sizeof(rcv_pkts));
+	memset(rcv_pkt_descs, 0, sizeof(rcv_pkt_descs));
+	num_rcv_pkts = 0;
+}
+
+static int make_pkts(uint32_t   num_pkts,
+		     uint32_t   pkt_len,
+		     uint8_t    packet_color,
+		     odp_bool_t drop_eligible,
+		     uint8_t    pkt_class)
+{
+	xmt_pkt_desc_t *xmt_pkt_desc;
+	odp_packet_t    odp_pkt;
+	uint32_t        hdrs_len, payload_len, idx, ident, xmt_pkt_idx;
+
+	hdrs_len    = ODPH_ETHHDR_LEN + ODPH_IPV4HDR_LEN + ODPH_UDPHDR_LEN;
+	payload_len = pkt_len - (hdrs_len + SHAPER_LEN_ADJ);
+
+	for (idx = 0; idx < num_pkts; idx++) {
+		ident        = odp_atomic_fetch_inc_u32(&cpu_ip_ident);
+		xmt_pkt_idx  = num_pkts_made++;
+		xmt_pkt_desc = &xmt_pkt_descs[xmt_pkt_idx];
+		xmt_pkt_desc->pkt_len   = pkt_len;
+		xmt_pkt_desc->xmt_ident = ident;
+		xmt_pkt_desc->pkt_class = pkt_class;
+
+		odp_pkt = make_pkt(pools[0], payload_len, ident, pkt_class);
+		if (odp_pkt == ODP_PACKET_INVALID)
+			return -1;
+
+		odp_packet_color_set(odp_pkt, packet_color);
+		odp_packet_drop_eligible_set(odp_pkt, drop_eligible);
+		odp_packet_shaper_len_adjust_set(odp_pkt, SHAPER_LEN_ADJ);
+
+		xmt_pkts[xmt_pkt_idx] = odp_pkt;
+	}
+
+	return 0;
+}
+
+static uint32_t send_pkts(odp_tm_queue_t tm_queue, uint32_t num_pkts)
+{
+	xmt_pkt_desc_t *xmt_pkt_desc;
+	odp_packet_t    odp_pkt;
+	uint32_t        idx, xmt_pkt_idx, pkts_sent;
+	int             rc;
+
+	/* Now send the pkts as fast as we can. */
+	pkts_sent = 0;
+	for (idx = 0; idx < num_pkts; idx++) {
+		xmt_pkt_idx  = num_pkts_sent;
+		odp_pkt      = xmt_pkts[xmt_pkt_idx];
+		xmt_pkt_desc = &xmt_pkt_descs[xmt_pkt_idx];
+
+		/* Alternate calling with odp_tm_enq and odp_tm_enq_with_cnt */
+		if ((idx & 1) == 0)
+			rc = odp_tm_enq(tm_queue, odp_pkt);
+		else
+			rc = odp_tm_enq_with_cnt(tm_queue, odp_pkt);
+
+		if (0 <= rc) {
+			xmt_pkt_desc->xmt_time = odp_time_local();
+			xmt_pkt_desc->tm_queue = tm_queue;
+			pkts_sent++;
+		} else {
+			odp_packet_free(odp_pkt);
+			xmt_pkts[xmt_pkt_idx] = ODP_PACKET_INVALID;
+		}
+
+		num_pkts_sent++;
+	}
+
+	return pkts_sent;
+}
+
+static uint32_t pkts_rcvd_in_send_order(void)
+{
+	xmt_pkt_desc_t *xmt_pkt_desc;
+	odp_time_t      last_rcv_time, rcv_time;
+	uint32_t        xmt_pkt_idx, pkts_rcvd;
+
+	pkts_rcvd     = 0;
+	last_rcv_time = ODP_TIME_NULL;
+	for (xmt_pkt_idx = 0; xmt_pkt_idx < num_pkts_sent; xmt_pkt_idx++) {
+		xmt_pkt_desc = &xmt_pkt_descs[xmt_pkt_idx];
+		rcv_time     = xmt_pkt_desc->rcv_time;
+		if (xmt_pkt_desc->was_rcvd != 0) {
+			if ((pkts_rcvd != 0) &&
+			    (odp_time_cmp(rcv_time, last_rcv_time) < 0))
+				return 0;
+
+			pkts_rcvd++;
+			last_rcv_time = xmt_pkt_desc->rcv_time;
+		}
+	}
+
+	return pkts_rcvd;
+}
+
+static int ident_list_idx(uint32_t ip_ident,
+			  uint32_t ip_ident_list[],
+			  uint32_t ident_list_len)
+{
+	uint32_t idx;
+
+	for (idx = 0; idx < ident_list_len; idx++)
+		if (ip_ident_list[idx] == ip_ident)
+			return idx;
+
+	return -1;
+}
+
+static uint32_t pkts_rcvd_in_given_order(uint32_t   ip_ident_list[],
+					 uint32_t   ident_list_len,
+					 uint8_t    pkt_class,
+					 odp_bool_t match_pkt_class,
+					 odp_bool_t ignore_pkt_class)
+{
+	rcv_pkt_desc_t *rcv_pkt_desc;
+	odp_bool_t      is_match;
+	uint32_t        rcv_pkt_idx, pkts_in_order, pkts_out_of_order;
+	uint32_t        rcv_ident;
+	int             last_pkt_idx, pkt_idx;
+
+	pkts_in_order     = 1;
+	pkts_out_of_order = 0;
+	last_pkt_idx      = -1;
+	pkt_idx           = -1;
+
+	for (rcv_pkt_idx = 0; rcv_pkt_idx < num_rcv_pkts; rcv_pkt_idx++) {
+		rcv_pkt_desc = &rcv_pkt_descs[rcv_pkt_idx];
+
+		if (ignore_pkt_class)
+			is_match = true;
+		else if (match_pkt_class)
+			is_match = rcv_pkt_desc->pkt_class == pkt_class;
+		else
+			is_match = rcv_pkt_desc->pkt_class != pkt_class;
+
+		if (is_match) {
+			rcv_ident = rcv_pkt_desc->rcv_ident;
+			pkt_idx   = ident_list_idx(rcv_ident, ip_ident_list,
+						   ident_list_len);
+			if (0 <= pkt_idx) {
+				if (0 <= last_pkt_idx) {
+					if (last_pkt_idx < pkt_idx)
+						pkts_in_order++;
+					else
+						pkts_out_of_order++;
+				}
+
+				last_pkt_idx = pkt_idx;
+			}
+		}
+	}
+
+	return pkts_in_order;
+}
+
+static inline void update_rcv_stats(rcv_stats_t *rcv_stats,
+				    odp_time_t   rcv_time,
+				    odp_time_t   last_rcv_time)
+{
+	odp_time_t delta_time;
+	uint64_t   delta_ns;
+	uint32_t   rcv_gap;
+
+	rcv_gap = 0;
+	if (odp_time_cmp(last_rcv_time, rcv_time) <= 0) {
+		delta_time = odp_time_diff(rcv_time, last_rcv_time);
+		delta_ns   = odp_time_to_ns(delta_time);
+		rcv_gap    = delta_ns / 1000;
+	}
+
+	/* Note that rcv_gap is in units of microseconds. */
+	rcv_stats->min_rcv_gap = MIN(rcv_stats->min_rcv_gap, rcv_gap);
+	rcv_stats->max_rcv_gap = MAX(rcv_stats->max_rcv_gap, rcv_gap);
+
+	rcv_stats->total_rcv_gap         += rcv_gap;
+	rcv_stats->total_rcv_gap_squared += rcv_gap * rcv_gap;
+}
+
+static int rcv_rate_stats(rcv_stats_t *rcv_stats,
+			  uint8_t      pkt_class,
+			  uint32_t     skip_pkt_cnt)
+{
+	xmt_pkt_desc_t *xmt_pkt_desc;
+	odp_time_t      last_rcv_time, rcv_time;
+	uint32_t        matching_pkts, pkt_idx, pkts_rcvd;
+	uint32_t        avg, variance, std_dev;
+
+	matching_pkts = 0;
+	pkts_rcvd     = 0;
+	last_rcv_time = ODP_TIME_NULL;
+	memset(rcv_stats, 0, sizeof(rcv_stats_t));
+	rcv_stats->min_rcv_gap = 1000000000;
+
+	for (pkt_idx = 0; pkt_idx < num_pkts_sent; pkt_idx++) {
+		xmt_pkt_desc = &xmt_pkt_descs[pkt_idx];
+		if ((xmt_pkt_desc->was_rcvd != 0) &&
+		    (xmt_pkt_desc->pkt_class == pkt_class)) {
+			rcv_time = xmt_pkt_desc->rcv_time;
+			matching_pkts++;
+			if (skip_pkt_cnt <= matching_pkts) {
+				if (pkts_rcvd != 0)
+					update_rcv_stats(rcv_stats, rcv_time,
+							 last_rcv_time);
+				pkts_rcvd++;
+				last_rcv_time = rcv_time;
+			}
+		}
+	}
+
+	if (pkts_rcvd == 0)
+		return -1;
+
+	avg      = rcv_stats->total_rcv_gap / pkts_rcvd;
+	variance = (rcv_stats->total_rcv_gap_squared / pkts_rcvd) - avg * avg;
+	std_dev  = (uint32_t)sqrt((double)variance);
+
+	rcv_stats->num_samples = pkts_rcvd;
+	rcv_stats->avg_rcv_gap = avg;
+	rcv_stats->std_dev_gap = std_dev;
+	return 0;
+}
+
+static int create_tm_queue(odp_tm_t         odp_tm,
+			   odp_tm_node_t    tm_node,
+			   uint32_t         node_idx,
+			   tm_queue_desc_t *queue_desc,
+			   uint32_t         priority)
+{
+	odp_tm_queue_params_t queue_params;
+	odp_tm_queue_t        tm_queue;
+	odp_tm_wred_t         green_profile, yellow_profile, red_profile;
+	int                   rc;
+
+	odp_tm_queue_params_init(&queue_params);
+	queue_params.priority = priority;
+	if (priority == 0) {
+		green_profile  = wred_profiles[node_idx][PKT_GREEN];
+		yellow_profile = wred_profiles[node_idx][PKT_YELLOW];
+		red_profile    = wred_profiles[node_idx][PKT_RED];
+
+		queue_params.shaper_profile    = shaper_profiles[0];
+		queue_params.threshold_profile = threshold_profiles[0];
+		queue_params.wred_profile[PKT_GREEN]  = green_profile;
+		queue_params.wred_profile[PKT_YELLOW] = yellow_profile;
+		queue_params.wred_profile[PKT_RED]    = red_profile;
+	}
+
+	tm_queue = odp_tm_queue_create(odp_tm, &queue_params);
+	if (tm_queue == ODP_TM_INVALID) {
+		printf("%s odp_tm_queue_create() failed\n", __func__);
+		return -1;
+	}
+
+	queue_desc->tm_queues[priority] = tm_queue;
+	rc = odp_tm_queue_connect(tm_queue, tm_node);
+	if (rc != 0) {
+		printf("%s odp_tm_queue_connect() failed\n", __func__);
+		return -1;
+	}
+
+	return 0;
+}
+
+static tm_node_desc_t *create_tm_node(odp_tm_t        odp_tm,
+				      uint32_t        level,
+				      uint32_t        num_levels,
+				      uint32_t        node_idx,
+				      tm_node_desc_t *parent_node_desc)
+{
+	odp_tm_node_params_t  node_params;
+	tm_queue_desc_t      *queue_desc;
+	tm_node_desc_t       *node_desc;
+	odp_tm_wred_t         green_profile, yellow_profile, red_profile;
+	odp_tm_node_t         tm_node, parent_node;
+	uint32_t              node_desc_size, queue_desc_size, priority;
+	char                  node_name[TM_NAME_LEN];
+	int                   rc;
+
+	odp_tm_node_params_init(&node_params);
+	node_params.shaper_profile           = ODP_TM_INVALID;
+	node_params.threshold_profile        = ODP_TM_INVALID;
+	node_params.wred_profile[PKT_GREEN]  = ODP_TM_INVALID;
+	node_params.wred_profile[PKT_YELLOW] = ODP_TM_INVALID;
+	node_params.wred_profile[PKT_RED]    = ODP_TM_INVALID;
+	if (node_idx == 0) {
+		node_params.shaper_profile    = shaper_profiles[0];
+		node_params.threshold_profile = threshold_profiles[0];
+		if (level == num_levels) {
+			green_profile  = wred_profiles[node_idx][PKT_GREEN];
+			yellow_profile = wred_profiles[node_idx][PKT_YELLOW];
+			red_profile    = wred_profiles[node_idx][PKT_RED];
+
+			node_params.wred_profile[PKT_GREEN]  = green_profile;
+			node_params.wred_profile[PKT_YELLOW] = yellow_profile;
+			node_params.wred_profile[PKT_RED]    = red_profile;
+		}
+	}
+
+	node_params.max_fanin = FANIN_RATIO;
+	node_params.level = level;
+	if (parent_node_desc == NULL)
+		snprintf(node_name, sizeof(node_name), "node_%u",
+			 node_idx + 1);
+	else
+		snprintf(node_name, sizeof(node_name), "%s_%u",
+			 parent_node_desc->node_name, node_idx + 1);
+
+	tm_node = odp_tm_node_create(odp_tm, node_name, &node_params);
+	if (tm_node == ODP_TM_INVALID) {
+		printf("%s odp_tm_node_create() failed @ level=%u\n",
+		       __func__, level);
+		return NULL;
+	}
+
+	/* Now connect this node to the lower level "parent" node. */
+	if (level == 0)
+		parent_node = ODP_TM_ROOT;
+	else
+		parent_node = parent_node_desc->node;
+
+	rc = odp_tm_node_connect(tm_node, parent_node);
+	if (rc != 0) {
+		printf("%s odp_tm_node_connect() failed @ level=%u\n",
+		       __func__, level);
+		return NULL;
+	}
+
+	node_desc_size = sizeof(tm_node_desc_t) +
+			 sizeof(odp_tm_node_t) * FANIN_RATIO;
+	node_desc = malloc(node_desc_size);
+	memset(node_desc, 0, node_desc_size);
+	node_desc->level = level;
+	node_desc->node_idx = node_idx;
+	node_desc->num_children = FANIN_RATIO;
+	node_desc->node = tm_node;
+	node_desc->parent_node = parent_node;
+	node_desc->node_name = strdup(node_name);
+
+	/* Finally if the level is the highest then make fanin_ratio tm_queues
+	 * feeding this node. */
+	if (level < (num_levels - 1))
+		return node_desc;
+
+	node_desc->num_children = 0;
+	queue_desc_size = sizeof(tm_queue_desc_t) +
+			  sizeof(odp_tm_queue_t) * NUM_QUEUES_PER_NODE;
+	queue_desc = malloc(queue_desc_size);
+	memset(queue_desc, 0, queue_desc_size);
+	queue_desc->num_queues = NUM_QUEUES_PER_NODE;
+	node_desc->queue_desc = queue_desc;
+
+	for (priority = 0; priority < NUM_QUEUES_PER_NODE; priority++) {
+		rc = create_tm_queue(odp_tm, tm_node, node_idx, queue_desc,
+				     priority);
+		if (rc != 0) {
+			printf("%s - create_tm_queue() failed @ level=%u\n",
+			       __func__, level);
+			return NULL;
+		}
+	}
+
+	return node_desc;
+}
+
+static tm_node_desc_t *create_tm_subtree(odp_tm_t        odp_tm,
+					 uint32_t        level,
+					 uint32_t        num_levels,
+					 uint32_t        node_idx,
+					 tm_node_desc_t *parent_node)
+{
+	tm_node_desc_t *node_desc, *child_desc;
+	uint32_t        child_idx;
+
+	node_desc = create_tm_node(odp_tm, level, num_levels,
+				   node_idx, parent_node);
+	if (node_desc == NULL) {
+		printf("%s - create_tm_node() failed @ level=%u\n",
+		       __func__, level);
+		return NULL;
+	}
+
+	if (level < (num_levels - 1)) {
+		for (child_idx = 0; child_idx < FANIN_RATIO; child_idx++) {
+			child_desc = create_tm_subtree(odp_tm, level + 1,
+						       num_levels, child_idx,
+						       node_desc);
+			if (child_desc == NULL) {
+				printf("%s create_tm_subtree failed level=%u\n",
+				       __func__, level);
+
+				return NULL;
+			}
+
+			node_desc->children[child_idx] = child_desc;
+		}
+	}
+
+	return node_desc;
+}
+
+static odp_tm_node_t find_tm_node(uint8_t tm_system_idx, const char *node_name)
+{
+	return odp_tm_node_lookup(odp_tm_systems[tm_system_idx], node_name);
+}
+
+static tm_node_desc_t *find_node_desc(uint8_t     tm_system_idx,
+				      const char *node_name)
+{
+	tm_node_desc_t *node_desc;
+	uint32_t        child_num;
+	char           *name_ptr;
+
+	/* Assume node_name is "node_" followed by a sequence of integers
+	 * separated by underscores, where each integer is the child number to
+	 * get to the next level node. */
+	node_desc = root_node_descs[tm_system_idx];
+	name_ptr  = strchr(node_name, '_');
+	if (name_ptr == NULL)
+		return NULL;
+
+	/* Skip over the first integer */
+	name_ptr++;
+	name_ptr  = strchr(name_ptr, '_');
+	if (name_ptr != NULL)
+		name_ptr++;
+
+	while (node_desc != NULL) {
+		if (strcmp(node_desc->node_name, node_name) == 0)
+			return node_desc;
+
+		if (name_ptr == NULL)
+			return NULL;
+
+		child_num = atoi(name_ptr);
+		if (node_desc->num_children < child_num)
+			return NULL;
+
+		node_desc = node_desc->children[child_num - 1];
+		name_ptr  = strchr(name_ptr, '_');
+		if (name_ptr != NULL)
+			name_ptr++;
+	}
+
+	return NULL;
+}
+
+static odp_tm_queue_t find_tm_queue(uint8_t     tm_system_idx,
+				    const char *node_name,
+				    uint8_t     priority)
+{
+	tm_queue_desc_t *queue_desc;
+	tm_node_desc_t  *node_desc;
+
+	node_desc = find_node_desc(tm_system_idx, node_name);
+	if (node_desc == NULL)
+		return ODP_TM_INVALID;
+
+	queue_desc = node_desc->queue_desc;
+	if (queue_desc == NULL)
+		return ODP_TM_INVALID;
+
+	return queue_desc->tm_queues[priority];
+}
+
+static uint32_t find_child_queues(uint8_t         tm_system_idx,
+				  tm_node_desc_t *node_desc,
+				  uint8_t         priority,
+				  odp_tm_queue_t  tm_queues[],
+				  uint32_t        max_queues)
+{
+	tm_queue_desc_t *queue_desc;
+	tm_node_desc_t  *child_node_desc;
+	uint32_t         num_children, num_queues, child_idx, rem_queues;
+
+	if (max_queues == 0)
+		return 0;
+
+	queue_desc = node_desc->queue_desc;
+	if (queue_desc != NULL) {
+		tm_queues[0] = queue_desc->tm_queues[priority];
+		return 1;
+	}
+
+	num_children = node_desc->num_children;
+	num_queues   = 0;
+
+	for (child_idx = 0; child_idx < num_children; child_idx++) {
+		child_node_desc = node_desc->children[child_idx];
+		rem_queues  = max_queues - num_queues;
+		num_queues += find_child_queues(tm_system_idx, child_node_desc,
+						priority,
+						&tm_queues[num_queues],
+						rem_queues);
+		if (num_queues == max_queues)
+			break;
+	}
+
+	return num_queues;
+}
+
+static odp_tm_t create_tm_system(void)
+{
+	odp_tm_capability_t tm_capability;
+	odp_tm_params_t     tm_params, tm_params2;
+	tm_node_desc_t     *root_node_desc;
+	uint32_t            idx;
+	odp_tm_t            odp_tm, found_odp_tm;
+	char                tm_name[TM_NAME_LEN];
+	int                 rc;
+
+	/* Make sure that an odp_tm_capability_init call plus an
+	 * odp_tm_egress_init is equivalent to a single odp_tm_params_init
+	 * call. */
+	odp_tm_capability_init(&tm_params2.capability);
+	/* odp_tm_egress_init(&tm_params2.egress); */
+	memset(&tm_params2.egress, 0, sizeof(odp_tm_egress_t));
+	odp_tm_params_init(&tm_params);
+	if (0 != memcmp(&tm_params, &tm_params2, sizeof(odp_tm_params_t))) {
+		printf("%s odp_tm_params_init() failed\n", __func__);
+		return ODP_TM_INVALID;
+	}
+
+	tm_params.capability.max_tm_queues              = NUM_TM_QUEUES + 1;
+	tm_params.capability.max_priority               = NUM_PRIORITIES - 1;
+	tm_params.capability.max_levels                 = NUM_LEVELS;
+	tm_params.capability.tm_queue_shaper_supported  = 1;
+	tm_params.capability.tm_node_shaper_supported   = 1;
+	tm_params.capability.red_supported              = 1;
+	tm_params.capability.hierarchical_red_supported = 0;
+	tm_params.capability.weights_supported          = 1;
+	tm_params.capability.fair_queuing_supported     = 1;
+	tm_params.egress.egress_kind                    = ODP_TM_EGRESS_PKT_IO;
+	tm_params.egress.pktout                         = xmt_pktout;
+
+	for (idx = 0; idx < ODP_TM_MAX_LEVELS; idx++)
+		tm_params.capability.max_fanin_per_level[idx] = FANIN_RATIO;
+
+	snprintf(tm_name, sizeof(tm_name), "TM_system_%u", num_odp_tm_systems);
+	odp_tm = odp_tm_create(tm_name, &tm_params);
+	if (odp_tm == ODP_TM_INVALID) {
+		printf("%s odp_tm_create() failed\n", __func__);
+		return ODP_TM_INVALID;
+	}
+
+	odp_tm_systems[num_odp_tm_systems] = odp_tm;
+
+	root_node_desc = create_tm_subtree(odp_tm, 0, NUM_LEVELS, 0, NULL);
+	root_node_descs[num_odp_tm_systems] = root_node_desc;
+	if (root_node_desc == NULL) {
+		printf("%s - create_tm_subtree() failed\n", __func__);
+		return ODP_TM_INVALID;
+	}
+
+	num_odp_tm_systems++;
+
+	/* Test odp_tm_capability and odp_tm_find. */
+	rc = odp_tm_capability(odp_tm, &tm_capability);
+	if (rc != 0) {
+		printf("%s odp_tm_capability() failed\n", __func__);
+		return ODP_TM_INVALID;
+	}
+
+	found_odp_tm = odp_tm_find(tm_name, &tm_capability);
+	if ((found_odp_tm == ODP_TM_INVALID) || (found_odp_tm != odp_tm)) {
+		printf("%s odp_tm_find() failed\n", __func__);
+		return ODP_TM_INVALID;
+	}
+
+	return odp_tm;
+}
+
+int traffic_mngr_suite_init(void)
+{
+	uint32_t payload_len, copy_len;
+
+	/* Initialize some global variables. */
+	num_pkts_made = 0;
+	num_pkts_sent = 0;
+	num_rcv_pkts  = 0;
+	memset(xmt_pkts, 0, sizeof(xmt_pkts));
+	memset(rcv_pkts, 0, sizeof(rcv_pkts));
+	odp_atomic_init_u32(&cpu_ip_ident, 1);
+
+	payload_len = 0;
+	while (payload_len < MAX_PAYLOAD) {
+		copy_len = MIN(MAX_PAYLOAD - payload_len, sizeof(ALPHABET));
+		memcpy(&payload_data[payload_len], ALPHABET, copy_len);
+		payload_len += copy_len;
+	}
+
+	/* Next open a single or pair of interfaces.  This should be the same
+	 * logic as in the pktio_suite_init() function in the
+	 * test/validation/pktio.c file. */
+	iface_name[0] = getenv("ODP_PKTIO_IF0");
+	iface_name[1] = getenv("ODP_PKTIO_IF1");
+	num_ifaces = 1;
+
+	if (!iface_name[0]) {
+		printf("No interfaces specified, using default \"loop\".\n");
+		iface_name[0] = "loop";
+	} else if (!iface_name[1]) {
+		printf("Using loopback interface: %s\n", iface_name[0]);
+	} else {
+		num_ifaces = 2;
+		printf("Using paired interfaces: %s %s\n",
+		       iface_name[0], iface_name[1]);
+	}
+
+	if (open_pktios() != 0)
+		return -1;
+
+	/* Create the first/primary TM system. */
+	create_tm_system();
+	return 0;
+}
+
+int traffic_mngr_suite_term(void)
+{
+	uint32_t iface, idx;
+
+	/* Close the pktios and associated packet pools. */
+	free_rcvd_pkts();
+	for (iface = 0; iface < num_ifaces; iface++) {
+		if (odp_pool_destroy(pools[iface]) != 0)
+			return -1;
+
+		if (odp_pktio_close(pktios[iface]) != 0)
+			return -1;
+	}
+
+	/* Close/free the TM systems. */
+	for (idx = 0; idx < num_odp_tm_systems; idx++)
+		if (odp_tm_destroy(odp_tm_systems[idx]) != 0)
+			return -1;
+
+	return 0;
+}
+
+static void check_shaper_profile(char *shaper_name, uint32_t shaper_idx)
+{
+	odp_tm_shaper_params_t shaper_params;
+	odp_tm_shaper_t        profile;
+
+	profile = odp_tm_shaper_lookup(shaper_name);
+	CU_ASSERT(profile != ODP_TM_INVALID);
+	CU_ASSERT(profile == shaper_profiles[shaper_idx - 1]);
+	if (profile != shaper_profiles[shaper_idx - 1])
+		return;
+
+	odp_tm_shaper_params_read(profile, &shaper_params);
+	CU_ASSERT(approx_eq64(shaper_params.commit_bps,
+			      shaper_idx * MIN_COMMIT_BW));
+	CU_ASSERT(approx_eq64(shaper_params.peak_bps,
+			      shaper_idx * MIN_PEAK_BW));
+	CU_ASSERT(approx_eq32(shaper_params.commit_burst,
+			      shaper_idx * MIN_COMMIT_BURST));
+	CU_ASSERT(approx_eq32(shaper_params.peak_burst,
+			      shaper_idx * MIN_PEAK_BURST));
+
+	CU_ASSERT(shaper_params.shaper_len_adjust == SHAPER_LEN_ADJ);
+	CU_ASSERT(shaper_params.dual_rate         == 0);
+}
+
+void traffic_mngr_test_shaper_profile(void)
+{
+	odp_tm_shaper_params_t shaper_params;
+	odp_tm_shaper_t        profile;
+	uint32_t               idx, shaper_idx, i;
+	char                   shaper_name[TM_NAME_LEN];
+
+	odp_tm_shaper_params_init(&shaper_params);
+	shaper_params.shaper_len_adjust = SHAPER_LEN_ADJ;
+	shaper_params.dual_rate         = 0;
+
+	for (idx = 1; idx <= NUM_SHAPER_PROFILES; idx++) {
+		snprintf(shaper_name, sizeof(shaper_name),
+			 "shaper_profile_%u", idx);
+		shaper_params.commit_bps   = idx * MIN_COMMIT_BW;
+		shaper_params.peak_bps     = idx * MIN_PEAK_BW;
+		shaper_params.commit_burst = idx * MIN_COMMIT_BURST;
+		shaper_params.peak_burst   = idx * MIN_PEAK_BURST;
+
+		profile = odp_tm_shaper_create(shaper_name, &shaper_params);
+		CU_ASSERT_FATAL(profile != ODP_TM_INVALID);
+
+		/* Make sure profile handle is unique */
+		for (i = 1; i < idx - 1; i++)
+			CU_ASSERT(profile != shaper_profiles[i - 1]);
+
+		shaper_profiles[idx - 1] = profile;
+	}
+
+	/* Now test odp_tm_shaper_lookup */
+	for (idx = 1; idx <= NUM_SHAPER_PROFILES; idx++) {
+		/* The following equation is designed is somewhat randomize
+		 * the lookup of the profiles to catch any implementations
+		 *taking shortcuts. */
+		shaper_idx = ((3 + 7 * idx) % NUM_SHAPER_PROFILES) + 1;
+		snprintf(shaper_name, sizeof(shaper_name),
+			 "shaper_profile_%u", shaper_idx);
+
+		check_shaper_profile(shaper_name, shaper_idx);
+	}
+}
+
+static void check_sched_profile(char *sched_name, uint32_t sched_idx)
+{
+	odp_tm_sched_params_t sched_params;
+	odp_tm_sched_t        profile;
+	uint32_t              priority;
+
+	profile = odp_tm_sched_lookup(sched_name);
+	CU_ASSERT(profile != ODP_TM_INVALID);
+	CU_ASSERT(profile == sched_profiles[sched_idx - 1]);
+	if (profile != sched_profiles[sched_idx - 1])
+		return;
+
+	odp_tm_sched_params_read(profile, &sched_params);
+	for (priority = 0; priority < NUM_PRIORITIES; priority++) {
+		CU_ASSERT(sched_params.sched_modes[priority] ==
+			  ODP_TM_BYTE_BASED_WEIGHTS);
+		CU_ASSERT(approx_eq32(sched_params.sched_weights[priority],
+				      8 + sched_idx + priority));
+	}
+}
+
+void traffic_mngr_test_sched_profile(void)
+{
+	odp_tm_sched_params_t sched_params;
+	odp_tm_sched_t        profile;
+	uint32_t              idx, priority, sched_idx, i;
+	char                  sched_name[TM_NAME_LEN];
+
+	odp_tm_sched_params_init(&sched_params);
+
+	for (idx = 1; idx <= NUM_SCHED_PROFILES; idx++) {
+		snprintf(sched_name, sizeof(sched_name),
+			 "sched_profile_%u", idx);
+		for (priority = 0; priority < 16; priority++) {
+			sched_params.sched_modes[priority] =
+				ODP_TM_BYTE_BASED_WEIGHTS;
+			sched_params.sched_weights[priority] = 8 + idx +
+							       priority;
+		}
+
+		profile = odp_tm_sched_create(sched_name, &sched_params);
+		CU_ASSERT_FATAL(profile != ODP_TM_INVALID);
+
+		/* Make sure profile handle is unique */
+		for (i = 1; i < idx - 1; i++)
+			CU_ASSERT(profile != sched_profiles[i - 1]);
+
+		sched_profiles[idx - 1] = profile;
+	}
+
+	/* Now test odp_tm_sched_lookup */
+	for (idx = 1; idx <= NUM_SCHED_PROFILES; idx++) {
+		/* The following equation is designed is somewhat randomize
+		 * the lookup of the profiles to catch any implementations
+		 * taking shortcuts. */
+		sched_idx = ((3 + 7 * idx) % NUM_SCHED_PROFILES) + 1;
+		snprintf(sched_name, sizeof(sched_name), "sched_profile_%u",
+			 sched_idx);
+		check_sched_profile(sched_name, sched_idx);
+	}
+}
+
+static void check_threshold_profile(char    *threshold_name,
+				    uint32_t threshold_idx)
+{
+	odp_tm_threshold_params_t threshold_params;
+	odp_tm_threshold_t        profile;
+
+	profile = odp_tm_thresholds_lookup(threshold_name);
+	CU_ASSERT(profile != ODP_TM_INVALID);
+	CU_ASSERT(profile == threshold_profiles[threshold_idx - 1]);
+
+	if (profile == threshold_profiles[threshold_idx - 1])
+		return;
+
+	odp_tm_thresholds_params_read(profile, &threshold_params);
+	CU_ASSERT(threshold_params.max_pkts  ==
+				  threshold_idx * MIN_PKT_THRESHOLD);
+	CU_ASSERT(threshold_params.max_bytes ==
+				  threshold_idx * MIN_BYTE_THRESHOLD);
+	CU_ASSERT(threshold_params.enable_max_pkts  == 1);
+	CU_ASSERT(threshold_params.enable_max_bytes == 1);
+}
+
+void traffic_mngr_test_threshold_profile(void)
+{
+	odp_tm_threshold_params_t threshold_params;
+	odp_tm_threshold_t        profile;
+	uint32_t                  idx, threshold_idx, i;
+	char                      threshold_name[TM_NAME_LEN];
+
+	odp_tm_threshold_params_init(&threshold_params);
+	threshold_params.enable_max_pkts  = 1;
+	threshold_params.enable_max_bytes = 1;
+
+	for (idx = 1; idx <= NUM_THRESHOLD_PROFILES; idx++) {
+		snprintf(threshold_name, sizeof(threshold_name),
+			 "threshold_profile_%u", idx);
+		threshold_params.max_pkts  = idx * MIN_PKT_THRESHOLD;
+		threshold_params.max_bytes = idx * MIN_BYTE_THRESHOLD;
+
+		profile = odp_tm_threshold_create(threshold_name,
+						  &threshold_params);
+		CU_ASSERT_FATAL(profile != ODP_TM_INVALID);
+
+		/* Make sure profile handle is unique */
+		for (i = 1; i < idx - 1; i++)
+			CU_ASSERT(profile != threshold_profiles[i - 1]);
+
+		threshold_profiles[idx - 1] = profile;
+	}
+
+	/* Now test odp_tm_threshold_lookup */
+	for (idx = 1; idx <= NUM_THRESHOLD_PROFILES; idx++) {
+		/* The following equation is designed is somewhat randomize
+		 * the lookup of the profiles to catch any implementations
+		 * taking shortcuts. */
+		threshold_idx = ((3 + 7 * idx) % NUM_THRESHOLD_PROFILES) + 1;
+		snprintf(threshold_name, sizeof(threshold_name),
+			 "threshold_profile_%u", threshold_idx);
+		check_threshold_profile(threshold_name, threshold_idx);
+	}
+}
+
+static void check_wred_profile(char    *wred_name,
+			       uint32_t wred_idx,
+			       uint32_t color)
+{
+	odp_tm_wred_params_t wred_params;
+	odp_tm_wred_t        profile;
+
+	profile = odp_tm_wred_lookup(wred_name);
+	CU_ASSERT(profile != ODP_TM_INVALID);
+	CU_ASSERT(profile == wred_profiles[wred_idx - 1][color]);
+	if (profile != wred_profiles[wred_idx - 1][color])
+		return;
+
+	odp_tm_wred_params_read(profile, &wred_params);
+	CU_ASSERT(wred_params.min_threshold == wred_idx * MIN_WRED_THRESH);
+	CU_ASSERT(wred_params.med_threshold == wred_idx * MED_WRED_THRESH);
+	CU_ASSERT(wred_params.med_drop_prob == wred_idx * MED_DROP_PROB);
+	CU_ASSERT(wred_params.max_drop_prob == wred_idx * MAX_DROP_PROB);
+
+	CU_ASSERT(wred_params.enable_wred       == 1);
+	CU_ASSERT(wred_params.use_byte_fullness == 0);
+}
+
+void traffic_mngr_test_wred_profile(void)
+{
+	odp_tm_wred_params_t wred_params;
+	odp_tm_wred_t        profile;
+	uint32_t             idx, color, wred_idx, i, c;
+	char                 wred_name[TM_NAME_LEN];
+
+	odp_tm_wred_params_init(&wred_params);
+	wred_params.enable_wred       = 1;
+	wred_params.use_byte_fullness = 0;
+
+	for (idx = 1; idx <= NUM_WRED_PROFILES; idx++) {
+		for (color = 0; color < ODP_NUM_PKT_COLORS; color++) {
+			snprintf(wred_name, sizeof(wred_name),
+				 "wred_profile_%u_%u", idx, color);
+			wred_params.min_threshold = idx * MIN_WRED_THRESH;
+			wred_params.med_threshold = idx * MED_WRED_THRESH;
+			wred_params.med_drop_prob = idx * MED_DROP_PROB;
+			wred_params.max_drop_prob = idx * MAX_DROP_PROB;
+
+			profile = odp_tm_wred_create(wred_name, &wred_params);
+			CU_ASSERT_FATAL(profile != ODP_TM_INVALID);
+
+			/* Make sure profile handle is unique */
+			for (i = 1; i < idx - 1; i++)
+				for (c = 0; c < ODP_NUM_PKT_COLORS; c++)
+					CU_ASSERT(profile !=
+						  wred_profiles[i - 1][c]);
+
+			wred_profiles[idx - 1][color] = profile;
+		}
+	}
+
+	/* Now test odp_tm_wred_lookup */
+	for (idx = 1; idx <= NUM_WRED_PROFILES; idx++) {
+		/* The following equation is designed is somewhat randomize
+		 * the lookup of the profiles to catch any implementations
+		 * taking shortcuts. */
+		wred_idx = ((3 + 7 * idx) % NUM_WRED_PROFILES) + 1;
+
+		for (color = 0; color < ODP_NUM_PKT_COLORS; color++) {
+			snprintf(wred_name, sizeof(wred_name),
+				 "wred_profile_%u_%u", wred_idx, color);
+			check_wred_profile(wred_name, wred_idx, color);
+		}
+	}
+}
+
+static int set_shaper(const char    *node_name,
+		      const char    *shaper_name,
+		      const uint64_t commit_bps,
+		      const uint64_t commit_burst_in_bits)
+{
+	odp_tm_shaper_params_t shaper_params;
+	odp_tm_shaper_t        shaper_profile;
+	odp_tm_node_t          tm_node;
+
+	tm_node = find_tm_node(0, node_name);
+	if (tm_node == ODP_TM_INVALID) {
+		printf("\n%s find_tm_node(%s) failed\n", __func__, node_name);
+		CU_ASSERT_FATAL(tm_node != ODP_TM_INVALID);
+		return -1;
+	}
+
+	odp_tm_shaper_params_init(&shaper_params);
+	shaper_params.commit_bps        = commit_bps;
+	shaper_params.peak_bps          = 0;
+	shaper_params.commit_burst      = commit_burst_in_bits;
+	shaper_params.peak_burst        = 0;
+	shaper_params.shaper_len_adjust = 0;
+	shaper_params.dual_rate         = 0;
+
+	/* First see if a shaper profile already exists with this name, in
+	 * which case we use that profile, else create a new one. */
+	shaper_profile = odp_tm_shaper_lookup(shaper_name);
+	if (shaper_profile != ODP_TM_INVALID)
+		odp_tm_shaper_params_update(shaper_profile, &shaper_params);
+	else
+		shaper_profile = odp_tm_shaper_create(shaper_name,
+						      &shaper_params);
+
+	return odp_tm_node_shaper_config(tm_node, shaper_profile);
+}
+
+static int test_shaper_bw(const char *shaper_name,
+			  const char *node_name,
+			  uint8_t     priority,
+			  uint64_t    commit_bps)
+{
+	odp_tm_queue_t tm_queue;
+	rcv_stats_t    rcv_stats;
+	uint64_t       expected_rcv_gap_us;
+	uint32_t       num_pkts, pkt_len, pkts_rcvd_in_order, avg_rcv_gap;
+	uint32_t       min_rcv_gap, max_rcv_gap, pkts_sent, skip_pkt_cnt;
+	uint8_t        pkt_class;
+	int            rc;
+
+	/* This test can support a commit_bps from 64K to 2 Gbps and possibly
+	 * up to a max of 10 Gbps, but no higher. */
+	CU_ASSERT_FATAL(commit_bps <= (10ULL * 1000000000ULL));
+
+	/* Pick a tm_queue and set the parent node's shaper BW to be commit_bps
+	 * with a small burst tolerance.  Then send the traffic with a pkt_len
+	 * of 10,000 bits and measure the average inter arrival receive "gap"
+	 * in microseconds. */
+	tm_queue = find_tm_queue(0, node_name, priority);
+	if (set_shaper(node_name, shaper_name, commit_bps, 10000) != 0)
+		return -1;
+
+	num_pkts  = 50;
+	pkt_len   = 10000 / 8;
+	pkt_class = 1;
+	init_xmt_pkts();
+
+	rc = make_pkts(num_pkts, pkt_len, ODP_PACKET_GREEN, false, pkt_class);
+	if (rc != 0)
+		return -1;
+
+	pkts_sent = send_pkts(tm_queue, num_pkts);
+
+	/* The expected inter arrival receive gap in seconds is equal to
+	 * "10,000 bits / commit_bps".  To get the gap time in microseconds
+	 * we multiply this by one million.  The timeout we use is 50 times
+	 * this gap time (since we send 50 pkts) multiplied by 4 to be
+	 * conservative, plus a constant time of 1 millisecond to account for
+	 * testing delays.  This then needs to be expressed in nanoseconds by
+	 * multiplying by 1000. */
+	expected_rcv_gap_us = (1000000ULL * 10000ULL) / commit_bps;
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin, pkts_sent,
+				    commit_bps);
+
+	/* First verify that all pkts were received AND in the same order sent.
+	 */
+	pkts_rcvd_in_order = pkts_rcvd_in_send_order();
+	CU_ASSERT(pkts_rcvd_in_order == pkts_sent);
+	if (32 <= pkts_rcvd_in_order) {
+		/* Next determine the inter arrival receive pkt statistics -
+		 * but just for the last 30 pkts. */
+		skip_pkt_cnt = pkts_rcvd_in_order - 30;
+		rc = rcv_rate_stats(&rcv_stats, pkt_class, skip_pkt_cnt);
+		CU_ASSERT(rc == 0);
+
+		/* Next verify that the last 30 pkts have an average
+		 * inter-receive gap of "expected_rcv_gap_us" microseconds,
+		 *  +/- 10%. */
+		avg_rcv_gap = rcv_stats.avg_rcv_gap;
+		min_rcv_gap = ((9  * expected_rcv_gap_us) / 10) - 2;
+		max_rcv_gap = ((11 * expected_rcv_gap_us) / 10) + 2;
+		CU_ASSERT((min_rcv_gap <= avg_rcv_gap) &&
+			  (avg_rcv_gap <= max_rcv_gap));
+		CU_ASSERT(rcv_stats.std_dev_gap <= expected_rcv_gap_us);
+		if ((avg_rcv_gap < min_rcv_gap) ||
+		    (max_rcv_gap < avg_rcv_gap) ||
+		    (expected_rcv_gap_us < rcv_stats.std_dev_gap)) {
+			fprintf(stderr, "%s min=%u avg_rcv_gap=%u max=%u "
+				"std_dev_gap=%u\n", __func__,
+				rcv_stats.min_rcv_gap, avg_rcv_gap,
+				rcv_stats.max_rcv_gap, rcv_stats.std_dev_gap);
+			fprintf(stderr, "  expected_rcv_gap=%lu acceptable "
+				"rcv_gap range=%u..%u\n",
+				expected_rcv_gap_us, min_rcv_gap, max_rcv_gap);
+		}
+	}
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+	return 0;
+}
+
+static int set_sched_fanin(const char         *node_name,
+			   const char         *sched_base_name,
+			   odp_tm_sched_mode_t sched_mode,
+			   uint8_t             sched_weights[FANIN_RATIO])
+{
+	odp_tm_sched_params_t sched_params;
+	odp_tm_sched_t        sched_profile;
+	tm_node_desc_t       *node_desc, *child_desc;
+	odp_tm_node_t         tm_node, fanin_node;
+	uint32_t              fanin_cnt, fanin, priority;
+	uint8_t               sched_weight;
+	char                  sched_name[TM_NAME_LEN];
+	int                   rc;
+
+	node_desc = find_node_desc(0, node_name);
+	if (node_desc == NULL)
+		return -1;
+
+	fanin_cnt = MIN(node_desc->num_children, FANIN_RATIO);
+	for (fanin = 0; fanin < fanin_cnt; fanin++) {
+		odp_tm_sched_params_init(&sched_params);
+		sched_weight = sched_weights[fanin];
+
+		/* Set the weights and mode the same for all priorities */
+		for (priority = 0; priority < NUM_PRIORITIES; priority++) {
+			sched_params.sched_modes[priority]   = sched_mode;
+			sched_params.sched_weights[priority] = sched_weight;
+		}
+
+		/* Create the scheduler profile name using the sched_base_name
+		 * and the fanin index */
+		snprintf(sched_name, sizeof(sched_name), "%s_%u",
+			 sched_base_name, fanin);
+
+		/* First see if a sched profile already exists with this name,
+		 * in which case we use that profile, else create a new one. */
+		sched_profile = odp_tm_sched_lookup(sched_name);
+		if (sched_profile != ODP_TM_INVALID)
+			odp_tm_sched_params_update(sched_profile,
+						   &sched_params);
+		else
+			sched_profile = odp_tm_sched_create(sched_name,
+							    &sched_params);
+
+		/* Apply the weights to the nodes fan-in. */
+		child_desc = node_desc->children[fanin];
+		tm_node    = node_desc->node;
+		fanin_node = child_desc->node;
+		rc = odp_tm_node_sched_config(tm_node, fanin_node,
+					      sched_profile);
+		if (rc != 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int test_sched_queue_priority(const char *shaper_name,
+				     const char *node_name,
+				     uint32_t    num_pkts)
+{
+	odp_tm_queue_t tm_queues[NUM_PRIORITIES];
+	uint32_t       pkt_cnt, pkts_in_order, base_idx;
+	uint32_t       idx, ip_ident, pkt_len, pkts_sent;
+	uint8_t        pkt_class;
+	int            priority, rc;
+
+	memset(ip_ident_list, 0, sizeof(ip_ident_list));
+	for (priority = 0; priority < NUM_PRIORITIES; priority++)
+		tm_queues[priority] = find_tm_queue(0, node_name, priority);
+
+	/* Enable the shaper to be low bandwidth. */
+	pkt_len = 1400;
+	set_shaper(node_name, shaper_name, 64 * 1000, 4 * pkt_len);
+
+	/* Make a couple of low priority dummy pkts first. */
+	init_xmt_pkts();
+	rc = make_pkts(4, pkt_len, ODP_PACKET_GREEN, false, 0);
+	CU_ASSERT_FATAL(rc == 0);
+
+	/* Now make "num_pkts" first at the lowest priority, then "num_pkts"
+	 * at the second lowest priority, etc until "num_pkts" are made last
+	 * at the highest priority (which is always priority 0). */
+	pkt_cnt = NUM_PRIORITIES * num_pkts;
+	pkt_len = 256;
+	for (priority = NUM_PRIORITIES - 1; 0 <= priority; priority--) {
+		ip_ident  = odp_atomic_load_u32(&cpu_ip_ident);
+		pkt_class = priority + 1;
+		rc = make_pkts(num_pkts, pkt_len + 64 * priority,
+			       ODP_PACKET_GREEN, false, pkt_class);
+		CU_ASSERT_FATAL(rc == 0);
+
+		base_idx = priority * num_pkts;
+		for (idx = 0; idx < num_pkts; idx++)
+			ip_ident_list[base_idx + idx] = ip_ident++;
+	}
+
+	/* Send the low priority dummy pkts first.  The arrival order of
+	 * these pkts will be ignored. */
+	pkts_sent = send_pkts(tm_queues[NUM_PRIORITIES - 1], 4);
+
+	/* Now send "num_pkts" first at the lowest priority, then "num_pkts"
+	 * at the second lowest priority, etc until "num_pkts" are sent last
+	 * at the highest priority. */
+	for (priority = NUM_PRIORITIES - 1; 0 <= priority; priority--)
+		pkts_sent += send_pkts(tm_queues[priority], num_pkts);
+
+	busy_wait(1000000);   /* wait 1 millisecond */
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin,
+				    pkt_cnt + 4, 64 * 1000);
+
+	/* Check rcvd packet arrivals to make sure that pkts arrived in
+	 * priority order, except for perhaps the first few lowest priority
+	 * dummy pkts. */
+	pkts_in_order = pkts_rcvd_in_given_order(ip_ident_list, pkt_cnt, 0,
+						 false, false);
+	CU_ASSERT(pkts_in_order == pkt_cnt);
+
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+	return 0;
+}
+
+static int test_sched_node_priority(const char *shaper_name,
+				    const char *node_name,
+				    uint32_t    num_pkts)
+{
+	odp_tm_queue_t *tm_queues, tm_queue;
+	tm_node_desc_t *node_desc;
+	queue_array_t  *queue_array;
+	uint32_t        total_num_queues, max_queues, num_queues, pkt_cnt;
+	uint32_t        pkts_in_order, base_idx, queue_idx, idx, ip_ident;
+	uint32_t        pkt_len, total_pkt_cnt, pkts_sent;
+	uint8_t         pkt_class;
+	int             priority, rc;
+
+	memset(ip_ident_list, 0, sizeof(ip_ident_list));
+	node_desc = find_node_desc(0, node_name);
+	if (node_desc == NULL)
+		return -1;
+
+	total_num_queues = 0;
+	for (priority = 0; priority < NUM_PRIORITIES; priority++) {
+		max_queues  = NUM_LEVEL2_TM_NODES;
+		queue_array = &queues_set.queue_array[priority];
+		tm_queues   = queue_array->tm_queues;
+		num_queues  = find_child_queues(0, node_desc, priority,
+						tm_queues, max_queues);
+		queue_array->num_queues = num_queues;
+		queue_array->priority   = priority;
+		total_num_queues       += num_queues;
+	}
+
+	/* Enable the shaper to be low bandwidth. */
+	pkt_len = 1400;
+	set_shaper(node_name, shaper_name, 64 * 1000, 4 * pkt_len);
+
+	/* Make a couple of low priority large dummy pkts first. */
+	init_xmt_pkts();
+	rc = make_pkts(4, pkt_len, ODP_PACKET_GREEN, false, 0);
+	CU_ASSERT_FATAL(rc == 0);
+
+	/* Now make "num_pkts" for each tm_queue at the lowest priority, then
+	 * "num_pkts" for each tm_queue at the second lowest priority, etc.
+	 * until "num_pkts" for each tm_queue at the highest priority are made
+	 * last.  Note that the highest priority is always priority 0. */
+	total_pkt_cnt  = total_num_queues * num_pkts;
+	pkt_len        = 256;
+	base_idx       = 0;
+	for (priority = NUM_PRIORITIES - 1; 0 <= priority; priority--) {
+		ip_ident    = odp_atomic_load_u32(&cpu_ip_ident);
+		queue_array = &queues_set.queue_array[priority];
+		num_queues  = queue_array->num_queues;
+		pkt_cnt     = num_queues * num_pkts;
+		pkt_class   = priority + 1;
+		rc          = make_pkts(pkt_cnt, pkt_len + 64 * priority,
+					ODP_PACKET_GREEN, false, pkt_class);
+		CU_ASSERT_FATAL(rc == 0);
+
+		base_idx = priority * num_pkts;
+		for (idx = 0; idx < pkt_cnt; idx++)
+			ip_ident_list[base_idx + idx] = ip_ident++;
+	}
+
+	/* Send the low priority dummy pkts first.  The arrival order of
+	 * these pkts will be ignored. */
+	queue_array = &queues_set.queue_array[NUM_PRIORITIES - 1];
+	tm_queue    = queue_array->tm_queues[0];
+	pkts_sent   = send_pkts(tm_queue, 4);
+
+	/* Now send "num_pkts" for each tm_queue at the lowest priority, then
+	 * "num_pkts" for each tm_queue at the second lowest priority, etc.
+	 * until "num_pkts" for each tm_queue at the highest priority are sent
+	 * last. */
+	for (priority = NUM_PRIORITIES - 1; 0 <= priority; priority--) {
+		queue_array = &queues_set.queue_array[priority];
+		num_queues  = queue_array->num_queues;
+		for (queue_idx = 0; queue_idx < num_queues; queue_idx++) {
+			tm_queue   = queue_array->tm_queues[queue_idx];
+			pkts_sent += send_pkts(tm_queue, num_pkts);
+		}
+	}
+
+	busy_wait(1000000);   /* wait 1 millisecond */
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin,
+				    pkts_sent, 64 * 1000);
+
+	/* Check rcvd packet arrivals to make sure that pkts arrived in
+	 * priority order, except for perhaps the first few lowest priority
+	 * dummy pkts. */
+	pkts_in_order = pkts_rcvd_in_given_order(ip_ident_list, total_pkt_cnt,
+						 0, false, false);
+	CU_ASSERT(pkts_in_order == total_pkt_cnt);
+
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+	return 0;
+}
+
+static int test_sched_wfq(const char         *sched_base_name,
+			  const char         *shaper_name,
+			  const char         *node_name,
+			  odp_tm_sched_mode_t sched_mode,
+			  uint8_t             sched_weights[FANIN_RATIO])
+{
+	odp_tm_queue_t  tm_queues[FANIN_RATIO], tm_queue;
+	tm_node_desc_t *node_desc, *child_desc;
+	rcv_stats_t     rcv_stats[FANIN_RATIO];
+	uint32_t        fanin_cnt, fanin, num_queues, pkt_cnt;
+	uint32_t        pkt_len, pkts_sent, pkt_idx;
+	uint8_t         pkt_class;
+	int             priority, rc;
+
+	memset(tm_queues, 0, sizeof(tm_queues));
+	node_desc = find_node_desc(0, node_name);
+	if (node_desc == NULL)
+		return -1;
+
+	rc = set_sched_fanin(node_name, sched_base_name, sched_mode,
+			     sched_weights);
+	if (rc != 0)
+		return -1;
+
+	/* Now determine at least one tm_queue that feeds into each fanin/
+	 * child node. */
+	priority  = 0;
+	fanin_cnt = MIN(node_desc->num_children, FANIN_RATIO);
+	for (fanin = 0; fanin < fanin_cnt; fanin++) {
+		child_desc = node_desc->children[fanin];
+		num_queues = find_child_queues(0, child_desc, priority,
+					       &tm_queues[fanin], 1);
+		if (num_queues != 1)
+			return -1;
+	}
+
+	/* Enable the shaper to be low bandwidth. */
+	pkt_len = 1400;
+	set_shaper(node_name, shaper_name, 64 * 1000, 8 * pkt_len);
+
+	/* Make a couple of low priority dummy pkts first. */
+	init_xmt_pkts();
+	rc = make_pkts(4, pkt_len, ODP_PACKET_GREEN, false, 0);
+	CU_ASSERT_FATAL(rc == 0);
+
+	/* Make 100 pkts for each fanin of this node, alternating amongst
+	 * the inputs. */
+	pkt_cnt = FANIN_RATIO * 100;
+	fanin = 0;
+	for (pkt_idx = 0; pkt_idx < pkt_cnt; pkt_idx++) {
+		pkt_len   = 128 + 128 * fanin;
+		pkt_class = 1 + fanin++;
+		rc = make_pkts(1, pkt_len, ODP_PACKET_GREEN, false, pkt_class);
+		if (FANIN_RATIO <= fanin)
+			fanin = 0;
+	}
+
+	/* Send the low priority dummy pkts first.  The arrival order of
+	 * these pkts will be ignored. */
+	pkts_sent = send_pkts(tm_queues[NUM_PRIORITIES - 1], 4);
+
+	/* Now send the test pkts, alternating amongst the input queues. */
+	fanin = 0;
+	for (pkt_idx = 0; pkt_idx < pkt_cnt; pkt_idx++) {
+		tm_queue   = tm_queues[fanin++];
+		pkts_sent += send_pkts(tm_queue, 1);
+		if (FANIN_RATIO <= fanin)
+			fanin = 0;
+	}
+
+	busy_wait(1000000);   /* wait 1 millisecond */
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin,
+				    pkt_cnt + 4, 64 * 1000);
+
+	/* Check rcvd packet arrivals to make sure that pkts arrived in
+	 * an order commensurate with their weights, sched mode and pkt_len. */
+	for (fanin = 0; fanin < fanin_cnt; fanin++) {
+		pkt_class = 1 + fanin;
+		CU_ASSERT(rcv_rate_stats(&rcv_stats[fanin], pkt_class, 0) == 0);
+	}
+
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+	return 0;
+}
+
+static int set_queue_thresholds(odp_tm_queue_t             tm_queue,
+				const char                *threshold_name,
+				odp_tm_threshold_params_t *threshold_params)
+{
+	odp_tm_threshold_t threshold_profile;
+
+	/* First see if a threshold profile already exists with this name, in
+	 * which case we use that profile, else create a new one. */
+	threshold_profile = odp_tm_thresholds_lookup(threshold_name);
+	if (threshold_profile != ODP_TM_INVALID)
+		odp_tm_thresholds_params_update(threshold_profile,
+						threshold_params);
+	else
+		threshold_profile = odp_tm_threshold_create(threshold_name,
+							    threshold_params);
+	return odp_tm_queue_threshold_config(tm_queue, threshold_profile);
+}
+
+static int test_threshold(const char *threshold_name,
+			  const char *shaper_name,
+			  const char *node_name,
+			  uint8_t     priority,
+			  uint32_t    max_pkts,
+			  uint32_t    max_bytes)
+{
+	odp_tm_threshold_params_t threshold_params;
+	odp_tm_queue_t            tm_queue;
+	uint32_t                  num_pkts, pkt_len, pkts_sent;
+
+	odp_tm_threshold_params_init(&threshold_params);
+	if (max_pkts != 0) {
+		max_pkts = MIN(max_pkts, MAX_PKTS / 3);
+		threshold_params.max_pkts        = max_pkts;
+		threshold_params.enable_max_pkts = true;
+		num_pkts = 2 * max_pkts;
+		pkt_len  = 256;
+	} else if (max_bytes != 0) {
+		max_bytes = MIN(max_bytes, MAX_PKTS * MAX_PAYLOAD / 3);
+		threshold_params.max_bytes        = max_bytes;
+		threshold_params.enable_max_bytes = true;
+		num_pkts = 2 * max_bytes / MAX_PAYLOAD;
+		pkt_len  = MAX_PAYLOAD;
+	} else {
+		return -1;
+	}
+
+	/* Pick a tm_queue and set the tm_queue's threshold profile and then
+	 * send in twice the amount of traffic as suggested by the thresholds
+	 * and make sure at least SOME pkts get dropped. */
+	tm_queue = find_tm_queue(0, node_name, priority);
+	if (set_queue_thresholds(tm_queue, threshold_name,
+				 &threshold_params) != 0) {
+		printf("%s set_queue_thresholds failed\n", __func__);
+		return -1;
+	}
+
+	/* Enable the shaper to be very low bandwidth. */
+	set_shaper(node_name, shaper_name, 256 * 1000, 8 * pkt_len);
+
+	init_xmt_pkts();
+	if (make_pkts(num_pkts, pkt_len, ODP_PACKET_GREEN, true, 1) != 0) {
+		printf("%s make_pkts failed\n", __func__);
+		return -1;
+	}
+
+	pkts_sent = send_pkts(tm_queue, num_pkts);
+
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin, pkts_sent,
+				    1 * GBPS);
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+
+	if (num_rcv_pkts < num_pkts)
+		return 0;
+
+	CU_ASSERT(num_rcv_pkts < pkts_sent);
+	return 0;
+}
+
+static wred_pkt_cnts_t *search_expected_pkt_rcv_tbl(odp_tm_percent_t confidence,
+						    odp_tm_percent_t drop_perc)
+{
+	wred_pkt_cnts_t *wred_pkt_cnts;
+	uint32_t         idx, table_size;
+
+	/* Search the EXPECTED_PKT_RCVD table to find a matching entry */
+	table_size = sizeof(EXPECTED_PKT_RCVD) / sizeof(wred_pkt_cnts_t);
+	for (idx = 0; idx < table_size; idx++) {
+		wred_pkt_cnts = &EXPECTED_PKT_RCVD[idx];
+		if ((wred_pkt_cnts->confidence_percent == confidence) &&
+		    (wred_pkt_cnts->drop_percent       == drop_perc))
+			return wred_pkt_cnts;
+	}
+
+	return NULL;
+}
+
+static int set_queue_wred(odp_tm_queue_t   tm_queue,
+			  const char      *wred_name,
+			  uint8_t          pkt_color,
+			  odp_tm_percent_t drop_percent,
+			  odp_bool_t       use_byte_fullness,
+			  odp_bool_t       use_dual_slope)
+{
+	odp_tm_wred_params_t wred_params;
+	odp_tm_wred_t        wred_profile;
+
+	odp_tm_wred_params_init(&wred_params);
+	if (use_dual_slope) {
+		wred_params.min_threshold = TM_PERCENT(20);
+		wred_params.med_threshold = TM_PERCENT(40);
+		wred_params.med_drop_prob = drop_percent;
+		wred_params.max_drop_prob = drop_percent;
+	} else {
+		wred_params.min_threshold = 0;
+		wred_params.med_threshold = TM_PERCENT(20);
+		wred_params.med_drop_prob = 0;
+		wred_params.max_drop_prob = 2 * drop_percent;
+	}
+
+	wred_params.enable_wred       = true;
+	wred_params.use_byte_fullness = use_byte_fullness;
+
+	/* First see if a wred profile already exists with this name, in
+	 * which case we use that profile, else create a new one. */
+	wred_profile = odp_tm_wred_lookup(wred_name);
+	if (wred_profile != ODP_TM_INVALID)
+		odp_tm_wred_params_update(wred_profile, &wred_params);
+	else
+		wred_profile = odp_tm_wred_create(wred_name, &wred_params);
+
+	return odp_tm_queue_wred_config(tm_queue, pkt_color, wred_profile);
+}
+
+static int test_byte_wred(const char      *wred_name,
+			  const char      *shaper_name,
+			  const char      *threshold_name,
+			  const char      *node_name,
+			  uint8_t          priority,
+			  uint8_t          pkt_color,
+			  odp_tm_percent_t drop_percent,
+			  odp_bool_t       use_dual_slope)
+{
+	odp_tm_threshold_params_t threshold_params;
+	wred_pkt_cnts_t          *wred_pkt_cnts;
+	odp_tm_queue_t            tm_queue;
+	uint32_t                  num_fill_pkts, num_test_pkts, pkts_sent;
+
+	/* Pick the tm_queue and set the tm_queue's wred profile to drop the
+	 * given percentage of traffic, then send 100 pkts and see how many
+	 * pkts are received. */
+	tm_queue = find_tm_queue(0, node_name, priority);
+	set_queue_wred(tm_queue, wred_name, pkt_color, drop_percent,
+		       true, use_dual_slope);
+
+	/* Enable the shaper to be very low bandwidth. */
+	set_shaper(node_name, shaper_name, 64 * 1000, 8 * PKT_BUF_SIZE);
+
+	/* Set the threshold to be byte based and to handle 200 pkts of
+	 * size PKT_BUF_SIZE. This way the byte-fullness for the wred test
+	 * pkts will be around 60%. */
+	odp_tm_threshold_params_init(&threshold_params);
+	threshold_params.max_bytes        = 200 * PKT_BUF_SIZE;
+	threshold_params.enable_max_bytes = true;
+	if (set_queue_thresholds(tm_queue, threshold_name,
+				 &threshold_params) != 0) {
+		printf("%s set_queue_thresholds failed\n", __func__);
+		return -1;
+	}
+
+	/* Make and send the first batch of pkts whose job is to set the
+	 * queue byte fullness to around 60% for the subsequent test packets.
+	 * These packets MUST have drop_eligible false. */
+	num_fill_pkts = 120;
+	init_xmt_pkts();
+	if (make_pkts(num_fill_pkts, PKT_BUF_SIZE, pkt_color, false, 0) != 0)
+		return -1;
+
+	send_pkts(tm_queue, num_fill_pkts);
+
+	/* Now send the real test pkts, which are all small so as to try to
+	 * keep the byte fullness still close to the 60% point. These pkts
+	 * MUST have drop_eligible true. */
+	num_test_pkts = 100;
+	if (make_pkts(num_test_pkts, 128, pkt_color, true, 1) != 0)
+		return -1;
+
+	pkts_sent = send_pkts(tm_queue, num_test_pkts);
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin,
+				    num_fill_pkts + pkts_sent, 64 * 1000);
+
+	/* Search the EXPECTED_PKT_RCVD table to find a matching entry */
+	wred_pkt_cnts = search_expected_pkt_rcv_tbl(TM_PERCENT(99.9),
+						    drop_percent);
+	if (wred_pkt_cnts == NULL)
+		return -1;
+
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+
+	if ((wred_pkt_cnts->min_cnt <= pkts_sent) &&
+	    (pkts_sent <= wred_pkt_cnts->max_cnt))
+		return 0;
+
+	CU_ASSERT((wred_pkt_cnts->min_cnt <= pkts_sent) &&
+		  (pkts_sent <= wred_pkt_cnts->max_cnt));
+	return 0;
+}
+
+static int test_pkt_wred(const char      *wred_name,
+			 const char      *shaper_name,
+			 const char      *threshold_name,
+			 const char      *node_name,
+			 uint8_t          priority,
+			 uint8_t          pkt_color,
+			 odp_tm_percent_t drop_percent,
+			 odp_bool_t       use_dual_slope)
+{
+	odp_tm_threshold_params_t threshold_params;
+	wred_pkt_cnts_t          *wred_pkt_cnts;
+	odp_tm_queue_t            tm_queue;
+	uint32_t                  num_fill_pkts, num_test_pkts, pkts_sent;
+
+	/* Pick the tm_queue and set the tm_queue's wred profile to drop the
+	 * given percentage of traffic, then send 100 pkts and see how many
+	 * pkts are received. */
+	tm_queue = find_tm_queue(0, node_name, priority);
+	set_queue_wred(tm_queue, wred_name, pkt_color, drop_percent,
+		       false, use_dual_slope);
+
+	/* Enable the shaper to be very low bandwidth. */
+	set_shaper(node_name, shaper_name, 64 * 1000, 1000);
+
+	/* Set the threshold to be pkt based and to handle 1000 pkts.  This
+	 * way the pkt-fullness for the wred test pkts will be around 60%. */
+	odp_tm_threshold_params_init(&threshold_params);
+	threshold_params.max_pkts        = 1000;
+	threshold_params.enable_max_pkts = true;
+	if (set_queue_thresholds(tm_queue, threshold_name,
+				 &threshold_params) != 0) {
+		printf("%s set_queue_thresholds failed\n", __func__);
+		return -1;
+	}
+
+	/* Make and send the first batch of pkts whose job is to set the
+	 * queue pkt fullness to around 60% for the subsequent test packets.
+	 * These packets MUST have drop_eligible false. */
+	num_fill_pkts = 600;
+	init_xmt_pkts();
+	if (make_pkts(num_fill_pkts, 80, pkt_color, false, 0) != 0)
+		return -1;
+
+	send_pkts(tm_queue, num_fill_pkts);
+
+	/* Now send the real test pkts.  These pkts MUST have drop_eligible
+	 * true. */
+	num_test_pkts = 100;
+	if (make_pkts(num_test_pkts, 80, pkt_color, true, 1) != 0)
+		return -1;
+
+	pkts_sent = send_pkts(tm_queue, num_test_pkts);
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin,
+				    num_fill_pkts + pkts_sent, 64 * 1000);
+
+	/* Search the EXPECTED_PKT_RCVD table to find a matching entry */
+	wred_pkt_cnts = search_expected_pkt_rcv_tbl(TM_PERCENT(99.9),
+						    drop_percent);
+	if (wred_pkt_cnts == NULL)
+		return -1;
+
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+
+	if ((wred_pkt_cnts->min_cnt <= pkts_sent) &&
+	    (pkts_sent <= wred_pkt_cnts->max_cnt))
+		return 0;
+
+	CU_ASSERT((wred_pkt_cnts->min_cnt <= pkts_sent) &&
+		  (pkts_sent <= wred_pkt_cnts->max_cnt));
+	return 0;
+}
+
+static int test_query_functions(const char *shaper_name,
+				const char *node_name,
+				uint8_t     priority,
+				uint32_t    num_pkts)
+{
+	odp_tm_queue_info_t query_info;
+	odp_tm_queue_t      tm_queue;
+	uint64_t            commit_bps, expected_pkt_cnt, expected_byte_cnt;
+	int                 rc;
+
+	/* Pick a tm_queue and set the egress node's shaper BW to be 64K bps
+	 * with a small burst tolerance.  Then send the traffic. */
+	tm_queue   = find_tm_queue(0, node_name, priority);
+	commit_bps = 64 * 1000;
+	if (set_shaper(node_name, shaper_name, commit_bps, 1000) != 0)
+		return -1;
+
+	init_xmt_pkts();
+	if (make_pkts(num_pkts, PKT_BUF_SIZE, ODP_PACKET_GREEN, false, 1) != 0)
+		return -1;
+
+	send_pkts(tm_queue, num_pkts);
+
+	/* Assume all but 2 of the pkts are still in the queue.*/
+	expected_pkt_cnt  = num_pkts - 2;
+	expected_byte_cnt = expected_pkt_cnt * PKT_BUF_SIZE;
+
+	rc = odp_tm_queue_query(tm_queue,
+				ODP_TM_QUERY_PKT_CNT | ODP_TM_QUERY_BYTE_CNT,
+				&query_info);
+	CU_ASSERT(rc == 0);
+	CU_ASSERT(query_info.total_pkt_cnt_valid);
+	CU_ASSERT(expected_pkt_cnt < query_info.total_pkt_cnt);
+	CU_ASSERT(query_info.total_byte_cnt_valid);
+	CU_ASSERT(expected_byte_cnt < query_info.total_byte_cnt);
+
+	rc = odp_tm_priority_query(odp_tm_systems[0], priority,
+				   ODP_TM_QUERY_PKT_CNT | ODP_TM_QUERY_BYTE_CNT,
+				   &query_info);
+	CU_ASSERT(rc == 0);
+	CU_ASSERT(query_info.total_pkt_cnt_valid);
+	CU_ASSERT(expected_pkt_cnt < query_info.total_pkt_cnt);
+	CU_ASSERT(query_info.total_byte_cnt_valid);
+	CU_ASSERT(expected_byte_cnt < query_info.total_byte_cnt);
+
+	rc = odp_tm_total_query(odp_tm_systems[0],
+				ODP_TM_QUERY_PKT_CNT | ODP_TM_QUERY_BYTE_CNT,
+				&query_info);
+	CU_ASSERT(rc == 0);
+	CU_ASSERT(query_info.total_pkt_cnt_valid);
+	CU_ASSERT(expected_pkt_cnt < query_info.total_pkt_cnt);
+	CU_ASSERT(query_info.total_byte_cnt_valid);
+	CU_ASSERT(expected_byte_cnt < query_info.total_byte_cnt);
+
+	/* Disable the shaper, so as to get the pkts out quicker. */
+	set_shaper(node_name, shaper_name, 0, 0);
+	num_rcv_pkts = receive_pkts(odp_tm_systems[0], rcv_pktin, num_pkts,
+				    commit_bps);
+
+	flush_leftover_pkts(odp_tm_systems[0], rcv_pktin);
+	CU_ASSERT(odp_tm_is_idle(odp_tm_systems[0]));
+	return 0;
+}
+
+void traffic_mngr_test_shaper(void)
+{
+	CU_ASSERT(test_shaper_bw("bw1",   "node_1_1_1", 0, 1   * MBPS) == 0);
+	CU_ASSERT(test_shaper_bw("bw4",   "node_1_1_1", 1, 4   * MBPS) == 0);
+	CU_ASSERT(test_shaper_bw("bw10",  "node_1_1_1", 2, 10  * MBPS) == 0);
+	CU_ASSERT(test_shaper_bw("bw40",  "node_1_1_1", 3, 40  * MBPS) == 0);
+	CU_ASSERT(test_shaper_bw("bw100", "node_1_1_2", 0, 100 * MBPS) == 0);
+}
+
+void traffic_mngr_test_scheduler(void)
+{
+	CU_ASSERT(test_sched_queue_priority("que_prio", "node_1_1_3", 10) == 0);
+	return;
+
+	/* The following tests are not quite ready for production use. */
+	CU_ASSERT(test_sched_node_priority("node_prio", "node_1_3", 4) == 0);
+
+	CU_ASSERT(test_sched_wfq("sched_rr", "shaper_rr", "node_1_3",
+				 ODP_TM_FRAME_BASED_WEIGHTS,
+				 EQUAL_WEIGHTS) == 0);
+	CU_ASSERT(test_sched_wfq("sched_wrr", "shaper_wrr", "node_1_3",
+				 ODP_TM_FRAME_BASED_WEIGHTS,
+				 INCREASING_WEIGHTS) == 0);
+	CU_ASSERT(test_sched_wfq("sched_wfq", "shaper_wfq", "node_1_3",
+				 ODP_TM_BYTE_BASED_WEIGHTS,
+				 INCREASING_WEIGHTS) == 0);
+}
+
+void traffic_mngr_test_thresholds(void)
+{
+	CU_ASSERT(test_threshold("thresh_A", "shaper_A", "node_1_2_1", 0,
+				 16, 0)    == 0);
+	CU_ASSERT(test_threshold("thresh_B", "shaper_B", "node_1_2_1", 1,
+				 0,  6400) == 0);
+}
+
+void traffic_mngr_test_byte_wred(void)
+{
+	CU_ASSERT(test_byte_wred("byte_wred_30G", "byte_bw_30G",
+				 "byte_thresh_30G", "node_1_3_1", 1,
+				 ODP_PACKET_GREEN, TM_PERCENT(30), true) == 0);
+	CU_ASSERT(test_byte_wred("byte_wred_50Y", "byte_bw_50Y",
+				 "byte_thresh_50Y", "node_1_3_1", 2,
+				 ODP_PACKET_YELLOW, TM_PERCENT(50), true) == 0);
+	CU_ASSERT(test_byte_wred("byte_wred_70R", "byte_bw_70R",
+				 "byte_thresh_70R", "node_1_3_1", 3,
+				 ODP_PACKET_RED, TM_PERCENT(70), true) == 0);
+
+	CU_ASSERT(test_byte_wred("byte_wred_40G", "byte_bw_40G",
+				 "byte_thresh_40G", "node_1_3_1", 1,
+				 ODP_PACKET_GREEN, TM_PERCENT(30), false) == 0);
+}
+
+void traffic_mngr_test_pkt_wred(void)
+{
+	CU_ASSERT(test_pkt_wred("pkt_wred_30G", "pkt_bw_30G",
+				"pkt_thresh_30G", "node_1_3_2", 1,
+				ODP_PACKET_GREEN, TM_PERCENT(30), true) == 0);
+	CU_ASSERT(test_pkt_wred("pkt_wred_50Y", "pkt_bw_50Y",
+				"pkt_thresh_50Y", "node_1_3_2", 2,
+				ODP_PACKET_YELLOW, TM_PERCENT(50), true) == 0);
+	CU_ASSERT(test_pkt_wred("pkt_wred_70R", "pkt_bw_70R",
+				"pkt_thresh_70R", "node_1_3_2", 3,
+				ODP_PACKET_RED,    TM_PERCENT(70), true) == 0);
+
+	CU_ASSERT(test_pkt_wred("pkt_wred_40G", "pkt_bw_40G",
+				"pkt_thresh_40G", "node_1_3_2", 1,
+				ODP_PACKET_GREEN, TM_PERCENT(30), false) == 0);
+}
+
+void traffic_mngr_test_query(void)
+{
+	CU_ASSERT(test_query_functions("query_shaper", "node_1_3_3", 3, 10)
+		  == 0);
+}
+
+odp_testinfo_t traffic_mngr_suite[] = {
+	ODP_TEST_INFO(traffic_mngr_test_shaper_profile),
+	ODP_TEST_INFO(traffic_mngr_test_sched_profile),
+	ODP_TEST_INFO(traffic_mngr_test_threshold_profile),
+	ODP_TEST_INFO(traffic_mngr_test_wred_profile),
+	ODP_TEST_INFO(traffic_mngr_test_shaper),
+	ODP_TEST_INFO(traffic_mngr_test_scheduler),
+	ODP_TEST_INFO(traffic_mngr_test_thresholds),
+	ODP_TEST_INFO(traffic_mngr_test_byte_wred),
+	ODP_TEST_INFO(traffic_mngr_test_pkt_wred),
+	ODP_TEST_INFO(traffic_mngr_test_query),
+	ODP_TEST_INFO_NULL,
+};
+
+odp_suiteinfo_t traffic_mngr_suites[] = {
+	{ "traffic_mngr tests", traffic_mngr_suite_init,
+	  traffic_mngr_suite_term, traffic_mngr_suite },
+	ODP_SUITE_INFO_NULL
+};
+
+int traffic_mngr_main(void)
+{
+	int ret = odp_cunit_register(traffic_mngr_suites);
+
+	if (ret == 0)
+		ret = odp_cunit_run();
+
+	return ret;
+}
diff --git a/test/validation/traffic_mngr/traffic_mngr.h b/test/validation/traffic_mngr/traffic_mngr.h
new file mode 100644
index 0000000..80117a8
--- /dev/null
+++ b/test/validation/traffic_mngr/traffic_mngr.h
@@ -0,0 +1,38 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	BSD-3-Clause
+ */
+
+#ifndef _ODP_TEST_TRAFFIC_MNGR_H_
+#define _ODP_TEST_TRAFFIC_MNGR_H_
+
+#include <odp_cunit_common.h>
+
+/* test functions: */
+void traffic_mngr_test_create_tm(void);
+void traffic_mngr_test_shaper_profile(void);
+void traffic_mngr_test_sched_profile(void);
+void traffic_mngr_test_threshold_profile(void);
+void traffic_mngr_test_wred_profile(void);
+void traffic_mngr_test_shaper(void);
+void traffic_mngr_test_scheduler(void);
+void traffic_mngr_test_thresholds(void);
+void traffic_mngr_test_byte_wred(void);
+void traffic_mngr_test_pkt_wred(void);
+void traffic_mngr_test_query(void);
+
+/* test arrays: */
+extern odp_testinfo_t traffic_mngr_suite[];
+
+/* test suite init/term functions: */
+int traffic_mngr_suite_init(void);
+int traffic_mngr_suite_term(void);
+
+/* test registry: */
+extern odp_suiteinfo_t traffic_mngr_suites[];
+
+/* main test program: */
+int traffic_mngr_main(void);
+
+#endif
diff --git a/test/validation/traffic_mngr/traffic_mngr_main.c b/test/validation/traffic_mngr/traffic_mngr_main.c
new file mode 100644
index 0000000..0cf042a
--- /dev/null
+++ b/test/validation/traffic_mngr/traffic_mngr_main.c
@@ -0,0 +1,12 @@ 
+/* Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	BSD-3-Clause
+ */
+
+#include "traffic_mngr.h"
+
+int main(void)
+{
+	return traffic_mngr_main();
+}