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Diffstat (limited to 'app/test/test_red.c')
| -rw-r--r-- | app/test/test_red.c | 1885 |
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); |