+++ /dev/null
-/*-
- * 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);
git.droids-corp.org / dpdk.git / blobdiff