Imported Upstream version 17.05

1 files changed, 0 insertions, 1885 deletions

diff --git a/app/test/test_red.c b/app/test/test_red.c
deleted file mode 100644
index 348075dc..00000000
--- a/app/test/test_red.c
+++ /dev/null
@@ -1,1885 +0,0 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <inttypes.h>
-#include <sys/time.h>
-#include <time.h>
-#include <math.h>
-
-#include "test.h"
-
-#include <rte_red.h>
-
-#ifdef __INTEL_COMPILER
-#pragma warning(disable:2259)       /* conversion may lose significant bits */
-#pragma warning(disable:181)        /* Arg incompatible with format string */
-#endif
-
-#define TEST_HZ_PER_KHZ 1000
-#define TEST_NSEC_MARGIN 500        /**< nanosecond margin when calculating clk freq */
-
-#define MAX_QEMPTY_TIME_MSEC   50000
-#define MSEC_PER_SEC           1000      /**< Milli-seconds per second */
-#define USEC_PER_MSEC          1000      /**< Micro-seconds per milli-second */
-#define USEC_PER_SEC           1000000   /**< Micro-seconds per second */
-#define NSEC_PER_SEC           (USEC_PER_SEC * 1000) /**< Nano-seconds per second */
-
-/**< structures for testing rte_red performance and function */
-struct test_rte_red_config {        /**< Test structure for RTE_RED config */
-	struct rte_red_config *rconfig; /**< RTE_RED configuration parameters */
-	uint8_t num_cfg;                /**< Number of RTE_RED configs to test */
-	uint8_t *wq_log2;               /**< Test wq_log2 value to use */
-	uint32_t min_th;                /**< Queue minimum threshold */
-	uint32_t max_th;                /**< Queue maximum threshold */
-	uint8_t *maxp_inv;              /**< Inverse mark probability */
-};
-
-struct test_queue {                 /**< Test structure for RTE_RED Queues */
-	struct rte_red *rdata;          /**< RTE_RED runtime data */
-	uint32_t num_queues;            /**< Number of RTE_RED queues to test */
-	uint32_t *qconfig;              /**< Configuration of RTE_RED queues for test */
-	uint32_t *q;                    /**< Queue size */
-	uint32_t q_ramp_up;             /**< Num of enqueues to ramp up the queue */
-	uint32_t avg_ramp_up;           /**< Average num of enqueues to ramp up the queue */
-	uint32_t avg_tolerance;         /**< Tolerance in queue average */
-	double drop_tolerance;          /**< Drop tolerance of packets not enqueued */
-};
-
-struct test_var {                   /**< Test variables used for testing RTE_RED */
-	uint32_t wait_usec;             /**< Micro second wait interval */
-	uint32_t num_iterations;        /**< Number of test iterations */
-	uint32_t num_ops;               /**< Number of test operations */
-	uint64_t clk_freq;              /**< CPU clock frequency */
-	uint32_t sleep_sec;             /**< Seconds to sleep */
-	uint32_t *dropped;              /**< Test operations dropped */
-	uint32_t *enqueued;             /**< Test operations enqueued */
-};
-
-struct test_config {                /**< Master test structure for RTE_RED */
-	const char *ifname;             /**< Interface name */
-	const char *msg;                /**< Test message for display */
-	const char *htxt;               /**< Header txt display for result output */
-	struct test_rte_red_config *tconfig; /**< Test structure for RTE_RED config */
-	struct test_queue *tqueue;      /**< Test structure for RTE_RED Queues */
-	struct test_var *tvar;          /**< Test variables used for testing RTE_RED */
-	uint32_t *tlevel;               /**< Queue levels */
-};
-
-enum test_result {
-	FAIL = 0,
-	PASS
-};
-
-/**< Test structure to define tests to run */
-struct tests {
-	struct test_config *testcfg;
-	enum test_result (*testfn)(struct test_config *);
-};
-
-struct rdtsc_prof {
-	uint64_t clk_start;
-	uint64_t clk_min;               /**< min clocks */
-	uint64_t clk_max;               /**< max clocks */
-	uint64_t clk_avgc;              /**< count to calc average */
-	double clk_avg;                 /**< cumulative sum to calc average */
-	const char *name;
-};
-
-static const uint64_t port_speed_bytes = (10ULL*1000ULL*1000ULL*1000ULL)/8ULL;
-static double inv_cycles_per_byte = 0;
-static double pkt_time_usec = 0;
-
-static void init_port_ts(uint64_t cpu_clock)
-{
-	double cycles_per_byte = (double)(cpu_clock) / (double)(port_speed_bytes);
-	inv_cycles_per_byte = 1.0 / cycles_per_byte;
-	pkt_time_usec = 1000000.0 / ((double)port_speed_bytes / (double)RTE_RED_S);
-}
-
-static uint64_t get_port_ts(void)
-{
-	return (uint64_t)((double)rte_rdtsc() * inv_cycles_per_byte);
-}
-
-static void rdtsc_prof_init(struct rdtsc_prof *p, const char *name)
-{
-	p->clk_min = (uint64_t)(-1LL);
-	p->clk_max = 0;
-	p->clk_avg = 0;
-	p->clk_avgc = 0;
-	p->name = name;
-}
-
-static inline void rdtsc_prof_start(struct rdtsc_prof *p)
-{
-	p->clk_start = rte_rdtsc_precise();
-}
-
-static inline void rdtsc_prof_end(struct rdtsc_prof *p)
-{
-	uint64_t clk_start = rte_rdtsc() - p->clk_start;
-
-	p->clk_avgc++;
-	p->clk_avg += (double) clk_start;
-
-	if (clk_start > p->clk_max)
-		p->clk_max = clk_start;
-	if (clk_start < p->clk_min)
-		p->clk_min = clk_start;
-}
-
-static void rdtsc_prof_print(struct rdtsc_prof *p)
-{
-	if (p->clk_avgc>0) {
-		printf("RDTSC stats for %s: n=%" PRIu64 ", min=%" PRIu64 ", max=%" PRIu64 ", avg=%.1f\n",
-			p->name,
-			p->clk_avgc,
-			p->clk_min,
-			p->clk_max,
-			(p->clk_avg / ((double) p->clk_avgc)));
-	}
-}
-
-static uint32_t rte_red_get_avg_int(const struct rte_red_config *red_cfg,
-				    struct rte_red *red)
-{
-	/**
-	 * scale by 1/n and convert from fixed-point to integer
-	 */
-	return red->avg >> (RTE_RED_SCALING + red_cfg->wq_log2);
-}
-
-static double rte_red_get_avg_float(const struct rte_red_config *red_cfg,
-				    struct rte_red *red)
-{
-	/**
-	 * scale by 1/n and convert from fixed-point to floating-point
-	 */
-	return ldexp((double)red->avg,  -(RTE_RED_SCALING + red_cfg->wq_log2));
-}
-
-static void rte_red_set_avg_int(const struct rte_red_config *red_cfg,
-				struct rte_red *red,
-				uint32_t avg)
-{
-	/**
-	 * scale by n and convert from integer to fixed-point
-	 */
-	red->avg = avg << (RTE_RED_SCALING + red_cfg->wq_log2);
-}
-
-static double calc_exp_avg_on_empty(double avg, uint32_t n, uint32_t time_diff)
-{
-	return avg * pow((1.0 - 1.0 / (double)n), (double)time_diff / pkt_time_usec);
-}
-
-static double calc_drop_rate(uint32_t enqueued, uint32_t dropped)
-{
-	return (double)dropped / ((double)enqueued + (double)dropped);
-}
-
-/**
- * calculate the drop probability
- */
-static double calc_drop_prob(uint32_t min_th, uint32_t max_th,
-			     uint32_t maxp_inv, uint32_t avg)
-{
-	double drop_prob = 0.0;
-
-	if (avg < min_th) {
-		drop_prob = 0.0;
-	} else if (avg < max_th) {
-		drop_prob = (1.0 / (double)maxp_inv)
-			* ((double)(avg - min_th)
-			   / (double)(max_th - min_th));
-	} else {
-		drop_prob = 1.0;
-	}
-	return drop_prob;
-}
-
-/**
- *  check if drop rate matches drop probability within tolerance
- */
-static int check_drop_rate(double *diff, double drop_rate, double drop_prob, double tolerance)
-{
-	double abs_diff = 0.0;
-	int ret = 1;
-
-	abs_diff = fabs(drop_rate - drop_prob);
-	if ((int)abs_diff == 0) {
-	        *diff = 0.0;
-	} else {
-	        *diff = (abs_diff / drop_prob) * 100.0;
-	        if (*diff > tolerance) {
-	                ret = 0;
-	        }
-        }
-	return ret;
-}
-
-/**
- *  check if average queue size is within tolerance
- */
-static int check_avg(double *diff, double avg, double exp_avg, double tolerance)
-{
-	double abs_diff = 0.0;
-	int ret = 1;
-
-	abs_diff = fabs(avg - exp_avg);
-	if ((int)abs_diff == 0) {
-	        *diff = 0.0;
-	} else {
-	        *diff = (abs_diff / exp_avg) * 100.0;
-	        if (*diff > tolerance) {
-	                ret = 0;
-                }
-	}
-	return ret;
-}
-
-/**
- * initialize the test rte_red config
- */
-static enum test_result
-test_rte_red_init(struct test_config *tcfg)
-{
-	unsigned i = 0;
-
-	tcfg->tvar->clk_freq = rte_get_timer_hz();
-	init_port_ts( tcfg->tvar->clk_freq );
-
-	for (i = 0; i < tcfg->tconfig->num_cfg; i++) {
-		if (rte_red_config_init(&tcfg->tconfig->rconfig[i],
-					(uint16_t)tcfg->tconfig->wq_log2[i],
-					(uint16_t)tcfg->tconfig->min_th,
-					(uint16_t)tcfg->tconfig->max_th,
-					(uint16_t)tcfg->tconfig->maxp_inv[i]) != 0) {
-			return FAIL;
-		}
-	}
-
-	*tcfg->tqueue->q = 0;
-	*tcfg->tvar->dropped = 0;
-	*tcfg->tvar->enqueued = 0;
-	return PASS;
-}
-
-/**
- * enqueue until actual queue size reaches target level
- */
-static int
-increase_actual_qsize(struct rte_red_config *red_cfg,
-                      struct rte_red *red,
-                      uint32_t *q,
-                      uint32_t level,
-                      uint32_t attempts)
-{
-        uint32_t i = 0;
-
-        for (i = 0; i < attempts; i++) {
-                int ret = 0;
-
-                /**
-                 * enqueue
-                 */
-                ret = rte_red_enqueue(red_cfg, red, *q, get_port_ts() );
-                if (ret == 0) {
-                        if (++(*q) >= level)
-                                break;
-                }
-        }
-        /**
-        * check if target actual queue size has been reached
-        */
-        if (*q != level)
-                return -1;
-        /**
-         * success
-         */
-        return 0;
-}
-
-/**
- * enqueue until average queue size reaches target level
- */
-static int
-increase_average_qsize(struct rte_red_config *red_cfg,
-                       struct rte_red *red,
-                       uint32_t *q,
-                       uint32_t level,
-                       uint32_t num_ops)
-{
-        uint32_t avg = 0;
-        uint32_t i = 0;
-
-        for (i = 0; i < num_ops; i++) {
-                /**
-                 * enqueue
-                 */
-                rte_red_enqueue(red_cfg, red, *q, get_port_ts());
-        }
-        /**
-         * check if target average queue size has been reached
-         */
-        avg = rte_red_get_avg_int(red_cfg, red);
-        if (avg != level)
-                return -1;
-        /**
-         * success
-         */
-        return 0;
-}
-
-/**
- * setup default values for the functional test structures
- */
-static struct rte_red_config ft_wrconfig[1];
-static struct rte_red ft_rtdata[1];
-static uint8_t ft_wq_log2[] = {9};
-static uint8_t ft_maxp_inv[] = {10};
-static uint32_t  ft_qconfig[] = {0, 0, 1, 1};
-static uint32_t  ft_q[] ={0};
-static uint32_t  ft_dropped[] ={0};
-static uint32_t  ft_enqueued[] ={0};
-
-static struct test_rte_red_config ft_tconfig =  {
-	.rconfig = ft_wrconfig,
-	.num_cfg = RTE_DIM(ft_wrconfig),
-	.wq_log2 = ft_wq_log2,
-	.min_th = 32,
-	.max_th = 128,
-	.maxp_inv = ft_maxp_inv,
-};
-
-static struct test_queue ft_tqueue = {
-	.rdata = ft_rtdata,
-	.num_queues = RTE_DIM(ft_rtdata),
-	.qconfig = ft_qconfig,
-	.q = ft_q,
-	.q_ramp_up = 1000000,
-	.avg_ramp_up = 1000000,
-	.avg_tolerance = 5,  /* 5 percent */
-	.drop_tolerance = 50,  /* 50 percent */
-};
-
-static struct test_var ft_tvar = {
-	.wait_usec = 10000,
-	.num_iterations = 5,
-	.num_ops = 10000,
-	.clk_freq = 0,
-	.dropped = ft_dropped,
-	.enqueued = ft_enqueued,
-	.sleep_sec = (MAX_QEMPTY_TIME_MSEC / MSEC_PER_SEC) + 2,
-};
-
-/**
- * functional test enqueue/dequeue packets
- */
-static void enqueue_dequeue_func(struct rte_red_config *red_cfg,
-                                 struct rte_red *red,
-                                 uint32_t *q,
-                                 uint32_t num_ops,
-                                 uint32_t *enqueued,
-                                 uint32_t *dropped)
-{
-        uint32_t i = 0;
-
-        for (i = 0; i < num_ops; i++) {
-                int ret = 0;
-
-                /**
-                 * enqueue
-                 */
-                ret = rte_red_enqueue(red_cfg, red, *q, get_port_ts());
-                if (ret == 0)
-                        (*enqueued)++;
-                else
-                        (*dropped)++;
-        }
-}
-
-/**
- * Test F1: functional test 1
- */
-static uint32_t ft1_tlevels[] =  {6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120, 126, 132, 138, 144};
-
-static struct test_config func_test1_config = {
-	.ifname = "functional test 1 interface",
-	.msg = "functional test 1 : use one rte_red configuration,\n"
-	"		    increase average queue size to various levels,\n"
-	"		    compare drop rate to drop probability\n\n",
-	.htxt = "                "
-	"avg queue size "
-	"enqueued       "
-	"dropped        "
-	"drop prob %    "
-	"drop rate %    "
-	"diff %         "
-	"tolerance %    "
-	"\n",
-	.tconfig = &ft_tconfig,
-	.tqueue = &ft_tqueue,
-	.tvar = &ft_tvar,
-	.tlevel = ft1_tlevels,
-};
-
-static enum test_result func_test1(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	uint32_t i = 0;
-
-	printf("%s", tcfg->msg);
-
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-
-	printf("%s", tcfg->htxt);
-
-	for (i = 0; i < RTE_DIM(ft1_tlevels); i++) {
-		const char *label = NULL;
-		uint32_t avg = 0;
-		double drop_rate = 0.0;
-		double drop_prob = 0.0;
-		double diff = 0.0;
-
-		/**
-		 * reset rte_red run-time data
-		 */
-		rte_red_rt_data_init(tcfg->tqueue->rdata);
-		*tcfg->tvar->enqueued = 0;
-		*tcfg->tvar->dropped = 0;
-
-		if (increase_actual_qsize(tcfg->tconfig->rconfig,
-					  tcfg->tqueue->rdata,
-					  tcfg->tqueue->q,
-					  tcfg->tlevel[i],
-					  tcfg->tqueue->q_ramp_up) != 0) {
-			result = FAIL;
-			goto out;
-		}
-
-		if (increase_average_qsize(tcfg->tconfig->rconfig,
-					   tcfg->tqueue->rdata,
-					   tcfg->tqueue->q,
-					   tcfg->tlevel[i],
-					   tcfg->tqueue->avg_ramp_up) != 0)  {
-			result = FAIL;
-			goto out;
-		}
-
-		enqueue_dequeue_func(tcfg->tconfig->rconfig,
-				     tcfg->tqueue->rdata,
-				     tcfg->tqueue->q,
-				     tcfg->tvar->num_ops,
-				     tcfg->tvar->enqueued,
-				     tcfg->tvar->dropped);
-
-		avg = rte_red_get_avg_int(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-		if (avg != tcfg->tlevel[i]) {
-                        fprintf(stderr, "Fail: avg != level\n");
-			result = FAIL;
-                }
-
-		drop_rate = calc_drop_rate(*tcfg->tvar->enqueued, *tcfg->tvar->dropped);
-		drop_prob = calc_drop_prob(tcfg->tconfig->min_th, tcfg->tconfig->max_th,
-					   *tcfg->tconfig->maxp_inv, tcfg->tlevel[i]);
-		if (!check_drop_rate(&diff, drop_rate, drop_prob, (double)tcfg->tqueue->drop_tolerance))
-		        result = FAIL;
-
-		if (tcfg->tlevel[i] == tcfg->tconfig->min_th)
-			label = "min thresh:     ";
-		else if (tcfg->tlevel[i] == tcfg->tconfig->max_th)
-			label = "max thresh:     ";
-		else
-			label = "                ";
-		printf("%s%-15u%-15u%-15u%-15.4lf%-15.4lf%-15.4lf%-15.4lf\n",
-		       label, avg, *tcfg->tvar->enqueued, *tcfg->tvar->dropped,
-		       drop_prob * 100.0, drop_rate * 100.0, diff,
-	               (double)tcfg->tqueue->drop_tolerance);
-	}
-out:
-	return result;
-}
-
-/**
- * Test F2: functional test 2
- */
-static uint32_t ft2_tlevel[] = {127};
-static uint8_t ft2_wq_log2[] = {9, 9, 9, 9, 9, 9, 9, 9, 9, 9};
-static uint8_t ft2_maxp_inv[] = {10, 20, 30, 40, 50, 60, 70, 80, 90, 100};
-static struct rte_red_config ft2_rconfig[10];
-
-static struct test_rte_red_config ft2_tconfig =  {
-	.rconfig = ft2_rconfig,
-	.num_cfg = RTE_DIM(ft2_rconfig),
-	.wq_log2 = ft2_wq_log2,
-	.min_th = 32,
-	.max_th = 128,
-	.maxp_inv = ft2_maxp_inv,
-};
-
-static struct test_config func_test2_config = {
-	.ifname = "functional test 2 interface",
-	.msg = "functional test 2 : use several RED configurations,\n"
-	"		    increase average queue size to just below maximum threshold,\n"
-	"		    compare drop rate to drop probability\n\n",
-	.htxt = "RED config     "
-	"avg queue size "
-	"min threshold  "
-	"max threshold  "
-	"drop prob %    "
-	"drop rate %    "
-	"diff %         "
-	"tolerance %    "
-	"\n",
-	.tconfig = &ft2_tconfig,
-	.tqueue = &ft_tqueue,
-	.tvar = &ft_tvar,
-	.tlevel = ft2_tlevel,
-};
-
-static enum test_result func_test2(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-        double prev_drop_rate = 1.0;
-	uint32_t i = 0;
-
-	printf("%s", tcfg->msg);
-
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-	rte_red_rt_data_init(tcfg->tqueue->rdata);
-
-	if (increase_actual_qsize(tcfg->tconfig->rconfig,
-				  tcfg->tqueue->rdata,
-				  tcfg->tqueue->q,
-				  *tcfg->tlevel,
-				  tcfg->tqueue->q_ramp_up) != 0) {
-		result = FAIL;
-		goto out;
-	}
-
-	if (increase_average_qsize(tcfg->tconfig->rconfig,
-				   tcfg->tqueue->rdata,
-				   tcfg->tqueue->q,
-				   *tcfg->tlevel,
-				   tcfg->tqueue->avg_ramp_up) != 0) {
-		result = FAIL;
-		goto out;
-	}
-	printf("%s", tcfg->htxt);
-
-	for (i = 0; i < tcfg->tconfig->num_cfg; i++) {
-		uint32_t avg = 0;
-		double drop_rate = 0.0;
-		double drop_prob = 0.0;
-		double diff = 0.0;
-
-		*tcfg->tvar->dropped = 0;
-		*tcfg->tvar->enqueued = 0;
-
-		enqueue_dequeue_func(&tcfg->tconfig->rconfig[i],
-				     tcfg->tqueue->rdata,
-				     tcfg->tqueue->q,
-				     tcfg->tvar->num_ops,
-				     tcfg->tvar->enqueued,
-				     tcfg->tvar->dropped);
-
-		avg = rte_red_get_avg_int(&tcfg->tconfig->rconfig[i], tcfg->tqueue->rdata);
-		if (avg != *tcfg->tlevel)
-			result = FAIL;
-
-		drop_rate = calc_drop_rate(*tcfg->tvar->enqueued, *tcfg->tvar->dropped);
-		drop_prob = calc_drop_prob(tcfg->tconfig->min_th, tcfg->tconfig->max_th,
-					   tcfg->tconfig->maxp_inv[i], *tcfg->tlevel);
-		if (!check_drop_rate(&diff, drop_rate, drop_prob, (double)tcfg->tqueue->drop_tolerance))
-		        result = FAIL;
-	        /**
-	         * drop rate should decrease as maxp_inv increases
-	         */
-	        if (drop_rate > prev_drop_rate)
-	                result = FAIL;
-	        prev_drop_rate = drop_rate;
-
-		printf("%-15u%-15u%-15u%-15u%-15.4lf%-15.4lf%-15.4lf%-15.4lf\n",
-		       i, avg, tcfg->tconfig->min_th, tcfg->tconfig->max_th,
-		       drop_prob * 100.0, drop_rate * 100.0, diff,
-	               (double)tcfg->tqueue->drop_tolerance);
-	}
-out:
-	return result;
-}
-
-/**
- * Test F3: functional test 3
- */
-static uint32_t ft3_tlevel[] = {1022};
-
-static struct test_rte_red_config ft3_tconfig =  {
-	.rconfig = ft_wrconfig,
-	.num_cfg = RTE_DIM(ft_wrconfig),
-	.wq_log2 = ft_wq_log2,
-	.min_th = 32,
-	.max_th = 1023,
-	.maxp_inv = ft_maxp_inv,
-};
-
-static struct test_config func_test3_config = {
-	.ifname = "functional test 3 interface",
-	.msg = "functional test 3 : use one RED configuration,\n"
-	"		    increase average queue size to target level,\n"
-	"		    dequeue all packets until queue is empty,\n"
-	"		    confirm that average queue size is computed correctly while queue is empty\n\n",
-	.htxt = "q avg before   "
-	"q avg after    "
-	"expected       "
-	"difference %   "
-	"tolerance %    "
-	"result	 "
-	"\n",
-	.tconfig = &ft3_tconfig,
-	.tqueue = &ft_tqueue,
-	.tvar = &ft_tvar,
-	.tlevel = ft3_tlevel,
-};
-
-static enum test_result func_test3(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	uint32_t i = 0;
-
-	printf("%s", tcfg->msg);
-
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-
-	rte_red_rt_data_init(tcfg->tqueue->rdata);
-
-	if (increase_actual_qsize(tcfg->tconfig->rconfig,
-				  tcfg->tqueue->rdata,
-				  tcfg->tqueue->q,
-				  *tcfg->tlevel,
-				  tcfg->tqueue->q_ramp_up) != 0) {
-		result = FAIL;
-		goto out;
-	}
-
-	if (increase_average_qsize(tcfg->tconfig->rconfig,
-				   tcfg->tqueue->rdata,
-				   tcfg->tqueue->q,
-				   *tcfg->tlevel,
-				   tcfg->tqueue->avg_ramp_up) != 0) {
-		result = FAIL;
-		goto out;
-	}
-
-	printf("%s", tcfg->htxt);
-
-	for (i = 0; i < tcfg->tvar->num_iterations; i++) {
-		double avg_before = 0;
-		double avg_after = 0;
-                double exp_avg = 0;
-		double diff = 0.0;
-
-		avg_before = rte_red_get_avg_float(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-
-		/**
-		* empty the queue
-		*/
-		*tcfg->tqueue->q = 0;
-		rte_red_mark_queue_empty(tcfg->tqueue->rdata, get_port_ts());
-
-		rte_delay_us(tcfg->tvar->wait_usec);
-
-		/**
-		 * enqueue one packet to recalculate average queue size
-		 */
-		if (rte_red_enqueue(tcfg->tconfig->rconfig,
-				    tcfg->tqueue->rdata,
-				    *tcfg->tqueue->q,
-				    get_port_ts()) == 0) {
-			(*tcfg->tqueue->q)++;
-		} else {
-			printf("%s:%d: packet enqueued on empty queue was dropped\n", __func__, __LINE__);
-			result = FAIL;
-		}
-
-		exp_avg = calc_exp_avg_on_empty(avg_before,
-					      (1 << *tcfg->tconfig->wq_log2),
-					      tcfg->tvar->wait_usec);
-		avg_after = rte_red_get_avg_float(tcfg->tconfig->rconfig,
-						  tcfg->tqueue->rdata);
-		if (!check_avg(&diff, avg_after, exp_avg, (double)tcfg->tqueue->avg_tolerance))
-		        result = FAIL;
-
-		printf("%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15s\n",
-		       avg_before, avg_after, exp_avg, diff,
-		       (double)tcfg->tqueue->avg_tolerance,
-		       diff <= (double)tcfg->tqueue->avg_tolerance ? "pass" : "fail");
-	}
-out:
-	return result;
-}
-
-/**
- * Test F4: functional test 4
- */
-static uint32_t ft4_tlevel[] = {1022};
-static uint8_t ft4_wq_log2[] = {11};
-
-static struct test_rte_red_config ft4_tconfig =  {
-	.rconfig = ft_wrconfig,
-	.num_cfg = RTE_DIM(ft_wrconfig),
-	.min_th = 32,
-	.max_th = 1023,
-	.wq_log2 = ft4_wq_log2,
-	.maxp_inv = ft_maxp_inv,
-};
-
-static struct test_queue ft4_tqueue = {
-	.rdata = ft_rtdata,
-	.num_queues = RTE_DIM(ft_rtdata),
-	.qconfig = ft_qconfig,
-	.q = ft_q,
-	.q_ramp_up = 1000000,
-	.avg_ramp_up = 1000000,
-	.avg_tolerance = 0,  /* 0 percent */
-	.drop_tolerance = 50,  /* 50 percent */
-};
-
-static struct test_config func_test4_config = {
-	.ifname = "functional test 4 interface",
-	.msg = "functional test 4 : use one RED configuration,\n"
-	"		    increase average queue size to target level,\n"
-	"		    dequeue all packets until queue is empty,\n"
-	"		    confirm that average queue size is computed correctly while\n"
-	"		    queue is empty for more than 50 sec,\n"
-	"		    (this test takes 52 sec to run)\n\n",
-	.htxt = "q avg before   "
-	"q avg after    "
-	"expected       "
-	"difference %   "
-	"tolerance %    "
-	"result	 "
-	"\n",
-	.tconfig = &ft4_tconfig,
-	.tqueue = &ft4_tqueue,
-	.tvar = &ft_tvar,
-	.tlevel = ft4_tlevel,
-};
-
-static enum test_result func_test4(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	uint64_t time_diff = 0;
-	uint64_t start = 0;
-	double avg_before = 0.0;
-	double avg_after = 0.0;
-        double exp_avg = 0.0;
-        double diff = 0.0;
-
-	printf("%s", tcfg->msg);
-
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-
-	rte_red_rt_data_init(tcfg->tqueue->rdata);
-
-	if (increase_actual_qsize(tcfg->tconfig->rconfig,
-				  tcfg->tqueue->rdata,
-				  tcfg->tqueue->q,
-				  *tcfg->tlevel,
-				  tcfg->tqueue->q_ramp_up) != 0) {
-		result = FAIL;
-		goto out;
-	}
-
-	if (increase_average_qsize(tcfg->tconfig->rconfig,
-				   tcfg->tqueue->rdata,
-				   tcfg->tqueue->q,
-				   *tcfg->tlevel,
-				   tcfg->tqueue->avg_ramp_up) != 0) {
-		result = FAIL;
-		goto out;
-	}
-
-	printf("%s", tcfg->htxt);
-
-	avg_before = rte_red_get_avg_float(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-
-	/**
-	 * empty the queue
-	 */
-	*tcfg->tqueue->q = 0;
-	rte_red_mark_queue_empty(tcfg->tqueue->rdata, get_port_ts());
-
-	/**
-	 * record empty time locally
-	 */
-	start = rte_rdtsc();
-
-	sleep(tcfg->tvar->sleep_sec);
-
-	/**
-	 * enqueue one packet to recalculate average queue size
-	 */
-	if (rte_red_enqueue(tcfg->tconfig->rconfig,
-			    tcfg->tqueue->rdata,
-			    *tcfg->tqueue->q,
-			    get_port_ts()) != 0) {
-		result = FAIL;
-		goto out;
-	}
-	(*tcfg->tqueue->q)++;
-
-	/**
-	 * calculate how long queue has been empty
-	 */
-	time_diff = ((rte_rdtsc() - start) / tcfg->tvar->clk_freq)
-		  * MSEC_PER_SEC;
-	if (time_diff < MAX_QEMPTY_TIME_MSEC) {
-		/**
-		 * this could happen if sleep was interrupted for some reason
-		 */
-		result = FAIL;
-		goto out;
-	}
-
-	/**
-	 * confirm that average queue size is now at expected level
-	 */
-        exp_avg = 0.0;
-	avg_after = rte_red_get_avg_float(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-	if (!check_avg(&diff, avg_after, exp_avg, (double)tcfg->tqueue->avg_tolerance))
-	        result = FAIL;
-
-	printf("%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15s\n",
-	       avg_before, avg_after, exp_avg,
-	       diff, (double)tcfg->tqueue->avg_tolerance,
-	       diff <= (double)tcfg->tqueue->avg_tolerance ? "pass" : "fail");
-out:
-	return result;
-}
-
-/**
- * Test F5: functional test 5
- */
-static uint32_t ft5_tlevel[] = {127};
-static uint8_t ft5_wq_log2[] = {9, 8};
-static uint8_t ft5_maxp_inv[] = {10, 20};
-static struct rte_red_config ft5_config[2];
-static struct rte_red ft5_data[4];
-static uint32_t ft5_q[4];
-static uint32_t ft5_dropped[] = {0, 0, 0, 0};
-static uint32_t ft5_enqueued[] = {0, 0, 0, 0};
-
-static struct test_rte_red_config ft5_tconfig =  {
-	.rconfig = ft5_config,
-	.num_cfg = RTE_DIM(ft5_config),
-	.min_th = 32,
-	.max_th = 128,
-	.wq_log2 = ft5_wq_log2,
-	.maxp_inv = ft5_maxp_inv,
-};
-
-static struct test_queue ft5_tqueue = {
-	.rdata = ft5_data,
-	.num_queues = RTE_DIM(ft5_data),
-	.qconfig = ft_qconfig,
-	.q = ft5_q,
-	.q_ramp_up = 1000000,
-	.avg_ramp_up = 1000000,
-	.avg_tolerance = 5,  /* 10 percent */
-	.drop_tolerance = 50,  /* 50 percent */
-};
-
-struct test_var ft5_tvar = {
-	.wait_usec = 0,
-	.num_iterations = 15,
-	.num_ops = 10000,
-	.clk_freq = 0,
-	.dropped = ft5_dropped,
-	.enqueued = ft5_enqueued,
-	.sleep_sec = 0,
-};
-
-static struct test_config func_test5_config = {
-	.ifname = "functional test 5 interface",
-	.msg = "functional test 5 : use several queues (each with its own run-time data),\n"
-	"		    use several RED configurations (such that each configuration is shared by multiple queues),\n"
-	"		    increase average queue size to just below maximum threshold,\n"
-	"		    compare drop rate to drop probability,\n"
-	"		    (this is a larger scale version of functional test 2)\n\n",
-	.htxt = "queue          "
-	"config         "
-	"avg queue size "
-	"min threshold  "
-	"max threshold  "
-	"drop prob %    "
-	"drop rate %    "
-	"diff %         "
-	"tolerance %    "
-	"\n",
-	.tconfig = &ft5_tconfig,
-	.tqueue = &ft5_tqueue,
-	.tvar = &ft5_tvar,
-	.tlevel = ft5_tlevel,
-};
-
-static enum test_result func_test5(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	uint32_t j = 0;
-
-	printf("%s", tcfg->msg);
-
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-
-	printf("%s", tcfg->htxt);
-
-	for (j = 0; j < tcfg->tqueue->num_queues; j++) {
-		rte_red_rt_data_init(&tcfg->tqueue->rdata[j]);
-		tcfg->tqueue->q[j] = 0;
-
-		if (increase_actual_qsize(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-					  &tcfg->tqueue->rdata[j],
-					  &tcfg->tqueue->q[j],
-					  *tcfg->tlevel,
-					  tcfg->tqueue->q_ramp_up) != 0) {
-			result = FAIL;
-			goto out;
-		}
-
-		if (increase_average_qsize(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-					   &tcfg->tqueue->rdata[j],
-					   &tcfg->tqueue->q[j],
-					   *tcfg->tlevel,
-					   tcfg->tqueue->avg_ramp_up) != 0) {
-			result = FAIL;
-			goto out;
-		}
-	}
-
-	for (j = 0; j < tcfg->tqueue->num_queues; j++) {
-		uint32_t avg = 0;
-		double drop_rate = 0.0;
-		double drop_prob = 0.0;
-		double diff = 0.0;
-
-		tcfg->tvar->dropped[j] = 0;
-		tcfg->tvar->enqueued[j] = 0;
-
-		enqueue_dequeue_func(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-				     &tcfg->tqueue->rdata[j],
-				     &tcfg->tqueue->q[j],
-				     tcfg->tvar->num_ops,
-				     &tcfg->tvar->enqueued[j],
-				     &tcfg->tvar->dropped[j]);
-
-		avg = rte_red_get_avg_int(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-					  &tcfg->tqueue->rdata[j]);
-		if (avg != *tcfg->tlevel)
-			result = FAIL;
-
-		drop_rate = calc_drop_rate(tcfg->tvar->enqueued[j],tcfg->tvar->dropped[j]);
-		drop_prob = calc_drop_prob(tcfg->tconfig->min_th, tcfg->tconfig->max_th,
-					   tcfg->tconfig->maxp_inv[tcfg->tqueue->qconfig[j]],
-					   *tcfg->tlevel);
-		if (!check_drop_rate(&diff, drop_rate, drop_prob, (double)tcfg->tqueue->drop_tolerance))
-		        result = FAIL;
-
-		printf("%-15u%-15u%-15u%-15u%-15u%-15.4lf%-15.4lf%-15.4lf%-15.4lf\n",
-		       j, tcfg->tqueue->qconfig[j], avg,
-		       tcfg->tconfig->min_th, tcfg->tconfig->max_th,
-		       drop_prob * 100.0, drop_rate * 100.0,
-		       diff, (double)tcfg->tqueue->drop_tolerance);
-	}
-out:
-	return result;
-}
-
-/**
- * Test F6: functional test 6
- */
-static uint32_t ft6_tlevel[] = {1022};
-static uint8_t ft6_wq_log2[] = {9, 8};
-static uint8_t ft6_maxp_inv[] = {10, 20};
-static struct rte_red_config ft6_config[2];
-static struct rte_red ft6_data[4];
-static uint32_t ft6_q[4];
-
-static struct test_rte_red_config ft6_tconfig =  {
-	.rconfig = ft6_config,
-	.num_cfg = RTE_DIM(ft6_config),
-	.min_th = 32,
-	.max_th = 1023,
-	.wq_log2 = ft6_wq_log2,
-	.maxp_inv = ft6_maxp_inv,
-};
-
-static struct test_queue ft6_tqueue = {
-	.rdata = ft6_data,
-	.num_queues = RTE_DIM(ft6_data),
-	.qconfig = ft_qconfig,
-	.q = ft6_q,
-	.q_ramp_up = 1000000,
-	.avg_ramp_up = 1000000,
-	.avg_tolerance = 5,  /* 10 percent */
-	.drop_tolerance = 50,  /* 50 percent */
-};
-
-static struct test_config func_test6_config = {
-	.ifname = "functional test 6 interface",
-	.msg = "functional test 6 : use several queues (each with its own run-time data),\n"
-	"		    use several RED configurations (such that each configuration is sharte_red by multiple queues),\n"
-	"		    increase average queue size to target level,\n"
-	"		    dequeue all packets until queue is empty,\n"
-	"		    confirm that average queue size is computed correctly while queue is empty\n"
-	"		    (this is a larger scale version of functional test 3)\n\n",
-	.htxt = "queue          "
-	"config         "
-	"q avg before   "
-	"q avg after    "
-	"expected       "
-	"difference %   "
-	"tolerance %    "
-	"result	 ""\n",
-	.tconfig = &ft6_tconfig,
-	.tqueue = &ft6_tqueue,
-	.tvar = &ft_tvar,
-	.tlevel = ft6_tlevel,
-};
-
-static enum test_result func_test6(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	uint32_t j = 0;
-
-	printf("%s", tcfg->msg);
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-	printf("%s", tcfg->htxt);
-
-	for (j = 0; j < tcfg->tqueue->num_queues; j++) {
-		rte_red_rt_data_init(&tcfg->tqueue->rdata[j]);
-		tcfg->tqueue->q[j] = 0;
-
-		if (increase_actual_qsize(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-					  &tcfg->tqueue->rdata[j],
-					  &tcfg->tqueue->q[j],
-					  *tcfg->tlevel,
-					  tcfg->tqueue->q_ramp_up) != 0) {
-			result = FAIL;
-			goto out;
-		}
-		if (increase_average_qsize(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-					   &tcfg->tqueue->rdata[j],
-					   &tcfg->tqueue->q[j],
-					   *tcfg->tlevel,
-					   tcfg->tqueue->avg_ramp_up) != 0) {
-			result = FAIL;
-			goto out;
-		}
-	}
-	for (j = 0; j < tcfg->tqueue->num_queues; j++) {
-		double avg_before = 0;
-		double avg_after = 0;
-		double exp_avg = 0;
-		double diff = 0.0;
-
-		avg_before = rte_red_get_avg_float(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-						   &tcfg->tqueue->rdata[j]);
-
-		/**
-		 * empty the queue
-		 */
-		tcfg->tqueue->q[j] = 0;
-		rte_red_mark_queue_empty(&tcfg->tqueue->rdata[j], get_port_ts());
-		rte_delay_us(tcfg->tvar->wait_usec);
-
-		/**
-		 * enqueue one packet to recalculate average queue size
-		 */
-		if (rte_red_enqueue(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-				    &tcfg->tqueue->rdata[j],
-				    tcfg->tqueue->q[j],
-				    get_port_ts()) == 0) {
-			tcfg->tqueue->q[j]++;
-		} else {
-			printf("%s:%d: packet enqueued on empty queue was dropped\n", __func__, __LINE__);
-			result = FAIL;
-		}
-
-		exp_avg = calc_exp_avg_on_empty(avg_before,
-				(1 << tcfg->tconfig->wq_log2[tcfg->tqueue->qconfig[j]]),
-				tcfg->tvar->wait_usec);
-		avg_after = rte_red_get_avg_float(&tcfg->tconfig->rconfig[tcfg->tqueue->qconfig[j]],
-						&tcfg->tqueue->rdata[j]);
-		if (!check_avg(&diff, avg_after, exp_avg, (double)tcfg->tqueue->avg_tolerance))
-		        result = FAIL;
-
-		printf("%-15u%-15u%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15s\n",
-		       j, tcfg->tqueue->qconfig[j], avg_before, avg_after,
-		       exp_avg, diff, (double)tcfg->tqueue->avg_tolerance,
-		       diff <= tcfg->tqueue->avg_tolerance ? "pass" : "fail");
-	}
-out:
-	return result;
-}
-
-/**
- * setup default values for the performance test structures
- */
-static struct rte_red_config pt_wrconfig[1];
-static struct rte_red pt_rtdata[1];
-static uint8_t pt_wq_log2[] = {9};
-static uint8_t pt_maxp_inv[] = {10};
-static uint32_t pt_qconfig[] = {0};
-static uint32_t pt_q[] = {0};
-static uint32_t pt_dropped[] = {0};
-static uint32_t pt_enqueued[] = {0};
-
-static struct test_rte_red_config pt_tconfig =  {
-	.rconfig = pt_wrconfig,
-	.num_cfg = RTE_DIM(pt_wrconfig),
-	.wq_log2 = pt_wq_log2,
-	.min_th = 32,
-	.max_th = 128,
-	.maxp_inv = pt_maxp_inv,
-};
-
-static struct test_queue pt_tqueue = {
-	.rdata = pt_rtdata,
-	.num_queues = RTE_DIM(pt_rtdata),
-	.qconfig = pt_qconfig,
-	.q = pt_q,
-	.q_ramp_up = 1000000,
-	.avg_ramp_up = 1000000,
-	.avg_tolerance = 5,  /* 10 percent */
-	.drop_tolerance = 50,  /* 50 percent */
-};
-
-/**
- * enqueue/dequeue packets
- */
-static void enqueue_dequeue_perf(struct rte_red_config *red_cfg,
-				 struct rte_red *red,
-				 uint32_t *q,
-				 uint32_t num_ops,
-				 uint32_t *enqueued,
-				 uint32_t *dropped,
-				 struct rdtsc_prof *prof)
-{
-	uint32_t i = 0;
-
-	for (i = 0; i < num_ops; i++) {
-		uint64_t ts = 0;
-		int ret = 0;
-		/**
-		 * enqueue
-		 */
-		ts = get_port_ts();
-		rdtsc_prof_start(prof);
-		ret = rte_red_enqueue(red_cfg, red, *q, ts );
-		rdtsc_prof_end(prof);
-		if (ret == 0)
-			(*enqueued)++;
-		else
-			(*dropped)++;
-	}
-}
-
-/**
- * Setup test structures for tests P1, P2, P3
- * performance tests 1, 2 and 3
- */
-static uint32_t pt1_tlevel[] = {16};
-static uint32_t pt2_tlevel[] = {80};
-static uint32_t pt3_tlevel[] = {144};
-
-static struct test_var perf1_tvar = {
-	.wait_usec = 0,
-	.num_iterations = 15,
-	.num_ops = 50000000,
-	.clk_freq = 0,
-	.dropped = pt_dropped,
-	.enqueued = pt_enqueued,
-	.sleep_sec = 0
-};
-
-static struct test_config perf1_test1_config = {
-	.ifname = "performance test 1 interface",
-	.msg = "performance test 1 : use one RED configuration,\n"
-	"		     set actual and average queue sizes to level below min threshold,\n"
-	"		     measure enqueue performance\n\n",
-	.tconfig = &pt_tconfig,
-	.tqueue = &pt_tqueue,
-	.tvar = &perf1_tvar,
-	.tlevel = pt1_tlevel,
-};
-
-static struct test_config perf1_test2_config = {
-	.ifname = "performance test 2 interface",
-	.msg = "performance test 2 : use one RED configuration,\n"
-	"		     set actual and average queue sizes to level in between min and max thresholds,\n"
-	"		     measure enqueue performance\n\n",
-	.tconfig = &pt_tconfig,
-	.tqueue = &pt_tqueue,
-	.tvar = &perf1_tvar,
-	.tlevel = pt2_tlevel,
-};
-
-static struct test_config perf1_test3_config = {
-	.ifname = "performance test 3 interface",
-	.msg = "performance test 3 : use one RED configuration,\n"
-	"		     set actual and average queue sizes to level above max threshold,\n"
-	"		     measure enqueue performance\n\n",
-	.tconfig = &pt_tconfig,
-	.tqueue = &pt_tqueue,
-	.tvar = &perf1_tvar,
-	.tlevel = pt3_tlevel,
-};
-
-/**
- * Performance test function to measure enqueue performance.
- * This runs performance tests 1, 2 and 3
- */
-static enum test_result perf1_test(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	struct rdtsc_prof prof = {0, 0, 0, 0, 0.0, NULL};
-	uint32_t total = 0;
-
-	printf("%s", tcfg->msg);
-
-	rdtsc_prof_init(&prof, "enqueue");
-
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-
-	/**
-	 * set average queue size to target level
-	 */
-	*tcfg->tqueue->q = *tcfg->tlevel;
-
-	/**
-	 * initialize the rte_red run time data structure
-	 */
-	rte_red_rt_data_init(tcfg->tqueue->rdata);
-
-	/**
-	 *  set the queue average
-	 */
-	rte_red_set_avg_int(tcfg->tconfig->rconfig, tcfg->tqueue->rdata, *tcfg->tlevel);
-	if (rte_red_get_avg_int(tcfg->tconfig->rconfig, tcfg->tqueue->rdata)
-	    != *tcfg->tlevel) {
-		result = FAIL;
-		goto out;
-	}
-
-	enqueue_dequeue_perf(tcfg->tconfig->rconfig,
-			     tcfg->tqueue->rdata,
-			     tcfg->tqueue->q,
-			     tcfg->tvar->num_ops,
-			     tcfg->tvar->enqueued,
-			     tcfg->tvar->dropped,
-			     &prof);
-
-	total = *tcfg->tvar->enqueued + *tcfg->tvar->dropped;
-
-	printf("\ntotal: %u, enqueued: %u (%.2lf%%), dropped: %u (%.2lf%%)\n", total,
-	       *tcfg->tvar->enqueued, ((double)(*tcfg->tvar->enqueued) / (double)total) * 100.0,
-	       *tcfg->tvar->dropped, ((double)(*tcfg->tvar->dropped) / (double)total) * 100.0);
-
-	rdtsc_prof_print(&prof);
-out:
-	return result;
-}
-
-/**
- * Setup test structures for tests P4, P5, P6
- * performance tests 4, 5 and 6
- */
-static uint32_t pt4_tlevel[] = {16};
-static uint32_t pt5_tlevel[] = {80};
-static uint32_t pt6_tlevel[] = {144};
-
-static struct test_var perf2_tvar = {
-	.wait_usec = 500,
-	.num_iterations = 10000,
-	.num_ops = 10000,
-	.dropped = pt_dropped,
-	.enqueued = pt_enqueued,
-	.sleep_sec = 0
-};
-
-static struct test_config perf2_test4_config = {
-	.ifname = "performance test 4 interface",
-	.msg = "performance test 4 : use one RED configuration,\n"
-	"		     set actual and average queue sizes to level below min threshold,\n"
-	"		     dequeue all packets until queue is empty,\n"
-	"		     measure enqueue performance when queue is empty\n\n",
-	.htxt = "iteration      "
-	"q avg before   "
-	"q avg after    "
-	"expected       "
-	"difference %   "
-	"tolerance %    "
-	"result	 ""\n",
-	.tconfig = &pt_tconfig,
-	.tqueue = &pt_tqueue,
-	.tvar = &perf2_tvar,
-	.tlevel = pt4_tlevel,
-};
-
-static struct test_config perf2_test5_config = {
-	.ifname = "performance test 5 interface",
-	.msg = "performance test 5 : use one RED configuration,\n"
-	"		     set actual and average queue sizes to level in between min and max thresholds,\n"
-	"		     dequeue all packets until queue is empty,\n"
-	"		     measure enqueue performance when queue is empty\n\n",
-	.htxt = "iteration      "
-	"q avg before   "
-	"q avg after    "
-	"expected       "
-	"difference     "
-	"tolerance      "
-	"result	 ""\n",
-	.tconfig = &pt_tconfig,
-	.tqueue = &pt_tqueue,
-	.tvar = &perf2_tvar,
-	.tlevel = pt5_tlevel,
-};
-
-static struct test_config perf2_test6_config = {
-	.ifname = "performance test 6 interface",
-	.msg = "performance test 6 : use one RED configuration,\n"
-	"		     set actual and average queue sizes to level above max threshold,\n"
-	"		     dequeue all packets until queue is empty,\n"
-	"		     measure enqueue performance when queue is empty\n\n",
-	.htxt = "iteration      "
-	"q avg before   "
-	"q avg after    "
-	"expected       "
-	"difference %   "
-	"tolerance %    "
-	"result	 ""\n",
-	.tconfig = &pt_tconfig,
-	.tqueue = &pt_tqueue,
-	.tvar = &perf2_tvar,
-	.tlevel = pt6_tlevel,
-};
-
-/**
- * Performance test function to measure enqueue performance when the
- * queue is empty. This runs performance tests 4, 5 and 6
- */
-static enum test_result perf2_test(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	struct rdtsc_prof prof = {0, 0, 0, 0, 0.0, NULL};
-	uint32_t total = 0;
-	uint32_t i = 0;
-
-	printf("%s", tcfg->msg);
-
-	rdtsc_prof_init(&prof, "enqueue");
-
-	if (test_rte_red_init(tcfg) != PASS) {
-		result = FAIL;
-		goto out;
-	}
-
-	printf("%s", tcfg->htxt);
-
-	for (i = 0; i < tcfg->tvar->num_iterations; i++) {
-		uint32_t count = 0;
-		uint64_t ts = 0;
-		double avg_before = 0;
-		int ret = 0;
-
-		/**
-		 * set average queue size to target level
-		 */
-		*tcfg->tqueue->q = *tcfg->tlevel;
-		count = (*tcfg->tqueue->rdata).count;
-
-		/**
-		 * initialize the rte_red run time data structure
-		 */
-		rte_red_rt_data_init(tcfg->tqueue->rdata);
-		(*tcfg->tqueue->rdata).count = count;
-
-		/**
-		 * set the queue average
-		 */
-		rte_red_set_avg_int(tcfg->tconfig->rconfig, tcfg->tqueue->rdata, *tcfg->tlevel);
-		avg_before = rte_red_get_avg_float(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-		if ((avg_before < *tcfg->tlevel) || (avg_before > *tcfg->tlevel)) {
-			result = FAIL;
-			goto out;
-		}
-
-		/**
-		 * empty the queue
-		 */
-		*tcfg->tqueue->q = 0;
-		rte_red_mark_queue_empty(tcfg->tqueue->rdata, get_port_ts());
-
-		/**
-		 * wait for specified period of time
-		 */
-		rte_delay_us(tcfg->tvar->wait_usec);
-
-		/**
-		 * measure performance of enqueue operation while queue is empty
-		 */
-		ts = get_port_ts();
-		rdtsc_prof_start(&prof);
-		ret = rte_red_enqueue(tcfg->tconfig->rconfig, tcfg->tqueue->rdata,
-				      *tcfg->tqueue->q, ts );
-		rdtsc_prof_end(&prof);
-
-		/**
-		 * gather enqueued/dropped statistics
-		 */
-		if (ret == 0)
-			(*tcfg->tvar->enqueued)++;
-		else
-			(*tcfg->tvar->dropped)++;
-
-		/**
-		 * on first and last iteration, confirm that
-		 * average queue size was computed correctly
-		 */
-		if ((i == 0) || (i == tcfg->tvar->num_iterations - 1)) {
-			double avg_after = 0;
-			double exp_avg = 0;
-			double diff = 0.0;
-			int ok = 0;
-
-			avg_after = rte_red_get_avg_float(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-			exp_avg = calc_exp_avg_on_empty(avg_before,
-						  (1 << *tcfg->tconfig->wq_log2),
-						  tcfg->tvar->wait_usec);
-			if (check_avg(&diff, avg_after, exp_avg, (double)tcfg->tqueue->avg_tolerance))
-		        	ok = 1;
-			printf("%-15u%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15.4lf%-15s\n",
-				i, avg_before, avg_after, exp_avg, diff,
-				(double)tcfg->tqueue->avg_tolerance, ok ? "pass" : "fail");
-			if (!ok) {
-				result = FAIL;
-				goto out;
-			}
-		}
-	}
-	total =  *tcfg->tvar->enqueued +  *tcfg->tvar->dropped;
-	printf("\ntotal: %u, enqueued: %u (%.2lf%%), dropped: %u (%.2lf%%)\n", total,
-	       *tcfg->tvar->enqueued, ((double)(*tcfg->tvar->enqueued) / (double)total) * 100.0,
-	       *tcfg->tvar->dropped, ((double)(*tcfg->tvar->dropped) / (double)total) * 100.0);
-
-	rdtsc_prof_print(&prof);
-out:
-	return result;
-}
-
-/**
- * setup default values for overflow test structures
- */
-static uint32_t avg_max = 0;
-static uint32_t avg_max_bits = 0;
-
-static struct rte_red_config ovfl_wrconfig[1];
-static struct rte_red ovfl_rtdata[1];
-static uint8_t ovfl_maxp_inv[] = {10};
-static uint32_t ovfl_qconfig[] = {0, 0, 1, 1};
-static uint32_t ovfl_q[] ={0};
-static uint32_t ovfl_dropped[] ={0};
-static uint32_t ovfl_enqueued[] ={0};
-static uint32_t ovfl_tlevel[] = {1023};
-static uint8_t ovfl_wq_log2[] = {12};
-
-static struct test_rte_red_config ovfl_tconfig =  {
-	.rconfig = ovfl_wrconfig,
-	.num_cfg = RTE_DIM(ovfl_wrconfig),
-	.wq_log2 = ovfl_wq_log2,
-	.min_th = 32,
-	.max_th = 1023,
-	.maxp_inv = ovfl_maxp_inv,
-};
-
-static struct test_queue ovfl_tqueue = {
-	.rdata = ovfl_rtdata,
-	.num_queues = RTE_DIM(ovfl_rtdata),
-	.qconfig = ovfl_qconfig,
-	.q = ovfl_q,
-	.q_ramp_up = 1000000,
-	.avg_ramp_up = 1000000,
-	.avg_tolerance = 5,  /* 10 percent */
-	.drop_tolerance = 50,  /* 50 percent */
-};
-
-static struct test_var ovfl_tvar = {
-	.wait_usec = 10000,
-	.num_iterations = 1,
-	.num_ops = 10000,
-	.clk_freq = 0,
-	.dropped = ovfl_dropped,
-	.enqueued = ovfl_enqueued,
-	.sleep_sec = 0
-};
-
-static void ovfl_check_avg(uint32_t avg)
-{
-	if (avg > avg_max) {
-		double avg_log = 0;
-		uint32_t bits = 0;
-		avg_max = avg;
-		avg_log = log(((double)avg_max));
-		avg_log = avg_log / log(2.0);
-		bits = (uint32_t)ceil(avg_log);
-		if (bits > avg_max_bits)
-			avg_max_bits = bits;
-	}
-}
-
-static struct test_config ovfl_test1_config = {
-	.ifname = "queue avergage overflow test interface",
-	.msg = "overflow test 1 : use one RED configuration,\n"
-	"		  increase average queue size to target level,\n"
-	"		  check maximum number of bits requirte_red to represent avg_s\n\n",
-	.htxt = "avg queue size  "
-	"wq_log2  "
-	"fraction bits  "
-	"max queue avg  "
-	"num bits  "
-	"enqueued  "
-	"dropped   "
-	"drop prob %  "
-	"drop rate %  "
-	"\n",
-	.tconfig = &ovfl_tconfig,
-	.tqueue = &ovfl_tqueue,
-	.tvar = &ovfl_tvar,
-	.tlevel = ovfl_tlevel,
-};
-
-static enum test_result ovfl_test1(struct test_config *tcfg)
-{
-	enum test_result result = PASS;
-	uint32_t avg = 0;
-	uint32_t i = 0;
-	double drop_rate = 0.0;
-	double drop_prob = 0.0;
-	double diff = 0.0;
-	int ret = 0;
-
-	printf("%s", tcfg->msg);
-
-	if (test_rte_red_init(tcfg) != PASS) {
-
-		result = FAIL;
-		goto out;
-	}
-
-	/**
-	 * reset rte_red run-time data
-	 */
-	rte_red_rt_data_init(tcfg->tqueue->rdata);
-
-	/**
-	 * increase actual queue size
-	 */
-	for (i = 0; i < tcfg->tqueue->q_ramp_up; i++) {
-		ret = rte_red_enqueue(tcfg->tconfig->rconfig, tcfg->tqueue->rdata,
-				      *tcfg->tqueue->q, get_port_ts());
-
-		if (ret == 0) {
-			if (++(*tcfg->tqueue->q) >= *tcfg->tlevel)
-				break;
-		}
-	}
-
-	/**
-	 * enqueue
-	 */
-	for (i = 0; i < tcfg->tqueue->avg_ramp_up; i++) {
-		ret = rte_red_enqueue(tcfg->tconfig->rconfig, tcfg->tqueue->rdata,
-				      *tcfg->tqueue->q, get_port_ts());
-		ovfl_check_avg((*tcfg->tqueue->rdata).avg);
-		avg = rte_red_get_avg_int(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-		if (avg == *tcfg->tlevel) {
-			if (ret == 0)
-				(*tcfg->tvar->enqueued)++;
-			else
-				(*tcfg->tvar->dropped)++;
-		}
-	}
-
-	/**
-	 * check if target average queue size has been reached
-	 */
-	avg = rte_red_get_avg_int(tcfg->tconfig->rconfig, tcfg->tqueue->rdata);
-	if (avg != *tcfg->tlevel) {
-		result = FAIL;
-		goto out;
-	}
-
-	/**
-	 * check drop rate against drop probability
-	 */
-	drop_rate = calc_drop_rate(*tcfg->tvar->enqueued, *tcfg->tvar->dropped);
-	drop_prob = calc_drop_prob(tcfg->tconfig->min_th,
-				   tcfg->tconfig->max_th,
-				   *tcfg->tconfig->maxp_inv,
-				   *tcfg->tlevel);
-	if (!check_drop_rate(&diff, drop_rate, drop_prob, (double)tcfg->tqueue->drop_tolerance))
-	        result = FAIL;
-
-	printf("%s", tcfg->htxt);
-
-	printf("%-16u%-9u%-15u0x%08x     %-10u%-10u%-10u%-13.2lf%-13.2lf\n",
-	       avg, *tcfg->tconfig->wq_log2, RTE_RED_SCALING,
-	       avg_max, avg_max_bits,
-	       *tcfg->tvar->enqueued, *tcfg->tvar->dropped,
-	       drop_prob * 100.0, drop_rate * 100.0);
-out:
-	return result;
-}
-
-/**
- * define the functional and performance tests to be executed
- */
-struct tests func_tests[] = {
-	{ &func_test1_config, func_test1 },
-	{ &func_test2_config, func_test2 },
-	{ &func_test3_config, func_test3 },
-	{ &func_test4_config, func_test4 },
-	{ &func_test5_config, func_test5 },
-	{ &func_test6_config, func_test6 },
-	{ &ovfl_test1_config, ovfl_test1 },
-};
-
-struct tests func_tests_quick[] = {
-	{ &func_test1_config, func_test1 },
-	{ &func_test2_config, func_test2 },
-	{ &func_test3_config, func_test3 },
-	/* no test 4 as it takes a lot of time */
-	{ &func_test5_config, func_test5 },
-	{ &func_test6_config, func_test6 },
-	{ &ovfl_test1_config, ovfl_test1 },
-};
-
-struct tests perf_tests[] = {
-	{ &perf1_test1_config, perf1_test },
-	{ &perf1_test2_config, perf1_test },
-	{ &perf1_test3_config, perf1_test },
-	{ &perf2_test4_config, perf2_test },
-	{ &perf2_test5_config, perf2_test },
-	{ &perf2_test6_config, perf2_test },
-};
-
-/**
- * function to execute the required_red tests
- */
-static void run_tests(struct tests *test_type, uint32_t test_count, uint32_t *num_tests, uint32_t *num_pass)
-{
-	enum test_result result = PASS;
-	uint32_t i = 0;
-
-	for (i = 0; i < test_count; i++) {
-		printf("\n--------------------------------------------------------------------------------\n");
-		result = test_type[i].testfn(test_type[i].testcfg);
-		(*num_tests)++;
-		if (result == PASS) {
-			(*num_pass)++;
-				printf("-------------------------------------<pass>-------------------------------------\n");
-		} else {
-			printf("-------------------------------------<fail>-------------------------------------\n");
-		}
-	}
-	return;
-}
-
-/**
- * check if functions accept invalid parameters
- *
- * First, all functions will be called without initialized RED
- * Then, all of them will be called with NULL/invalid parameters
- *
- * Some functions are not tested as they are performance-critical and thus
- * don't do any parameter checking.
- */
-static int
-test_invalid_parameters(void)
-{
-	struct rte_red_config config;
-
-	if (rte_red_rt_data_init(NULL) == 0) {
-		printf("rte_red_rt_data_init should have failed!\n");
-		return -1;
-	}
-
-	if (rte_red_config_init(NULL, 0, 0, 0, 0) == 0) {
-		printf("rte_red_config_init should have failed!\n");
-		return -1;
-	}
-
-	if (rte_red_rt_data_init(NULL) == 0) {
-		printf("rte_red_rt_data_init should have failed!\n");
-		return -1;
-	}
-
-	/* NULL config */
-	if (rte_red_config_init(NULL, 0, 0, 0, 0) == 0) {
-		printf("%i: rte_red_config_init should have failed!\n", __LINE__);
-		return -1;
-	}
-	/* min_treshold == max_treshold */
-	if (rte_red_config_init(&config, 0, 1, 1, 0) == 0) {
-		printf("%i: rte_red_config_init should have failed!\n", __LINE__);
-		return -1;
-	}
-	/* min_treshold > max_treshold */
-	if (rte_red_config_init(&config, 0, 2, 1, 0) == 0) {
-		printf("%i: rte_red_config_init should have failed!\n", __LINE__);
-		return -1;
-	}
-	/* wq_log2 > RTE_RED_WQ_LOG2_MAX */
-	if (rte_red_config_init(&config,
-			RTE_RED_WQ_LOG2_MAX + 1, 1, 2, 0) == 0) {
-		printf("%i: rte_red_config_init should have failed!\n", __LINE__);
-		return -1;
-	}
-	/* wq_log2 < RTE_RED_WQ_LOG2_MIN */
-	if (rte_red_config_init(&config,
-			RTE_RED_WQ_LOG2_MIN - 1, 1, 2, 0) == 0) {
-		printf("%i: rte_red_config_init should have failed!\n", __LINE__);
-		return -1;
-	}
-	/* maxp_inv > RTE_RED_MAXP_INV_MAX */
-	if (rte_red_config_init(&config,
-			RTE_RED_WQ_LOG2_MIN, 1, 2, RTE_RED_MAXP_INV_MAX + 1) == 0) {
-		printf("%i: rte_red_config_init should have failed!\n", __LINE__);
-		return -1;
-	}
-	/* maxp_inv < RTE_RED_MAXP_INV_MIN */
-	if (rte_red_config_init(&config,
-			RTE_RED_WQ_LOG2_MIN, 1, 2, RTE_RED_MAXP_INV_MIN - 1) == 0) {
-		printf("%i: rte_red_config_init should have failed!\n", __LINE__);
-		return -1;
-	}
-
-	return 0;
-}
-
-static void
-show_stats(const uint32_t num_tests, const uint32_t num_pass)
-{
-	if (num_pass == num_tests)
-		printf("[total: %u, pass: %u]\n", num_tests, num_pass);
-	else
-		printf("[total: %u, pass: %u, fail: %u]\n", num_tests, num_pass,
-		       num_tests - num_pass);
-}
-
-static int
-tell_the_result(const uint32_t num_tests, const uint32_t num_pass)
-{
-	return (num_pass == num_tests) ? 0 : 1;
-}
-
-static int
-test_red(void)
-{
-	uint32_t num_tests = 0;
-	uint32_t num_pass = 0;
-
-	if (test_invalid_parameters() < 0)
-		return -1;
-	run_tests(func_tests_quick, RTE_DIM(func_tests_quick),
-		  &num_tests, &num_pass);
-	show_stats(num_tests, num_pass);
-	return tell_the_result(num_tests, num_pass);
-}
-
-static int
-test_red_perf(void)
-{
-	uint32_t num_tests = 0;
-	uint32_t num_pass = 0;
-
-	run_tests(perf_tests, RTE_DIM(perf_tests), &num_tests, &num_pass);
-	show_stats(num_tests, num_pass);
-	return tell_the_result(num_tests, num_pass);
-}
-
-static int
-test_red_all(void)
-{
-	uint32_t num_tests = 0;
-	uint32_t num_pass = 0;
-
-	if (test_invalid_parameters() < 0)
-		return -1;
-
-	run_tests(func_tests, RTE_DIM(func_tests), &num_tests, &num_pass);
-	run_tests(perf_tests, RTE_DIM(perf_tests), &num_tests, &num_pass);
-	show_stats(num_tests, num_pass);
-	return tell_the_result(num_tests, num_pass);
-}
-
-REGISTER_TEST_COMMAND(red_autotest, test_red);
-REGISTER_TEST_COMMAND(red_perf, test_red_perf);
-REGISTER_TEST_COMMAND(red_all, test_red_all);