ceph/src/spdk/dpdk/app/test/test_latencystats.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdint.h>
   7 #include <string.h>
   8
   9 #include <rte_latencystats.h>
  10 #include "rte_lcore.h"
  11 #include "rte_metrics.h"
  12
  13 #include "sample_packet_forward.h"
  14 #include "test.h"
  15
  16 #define NUM_STATS 4
  17 #define LATENCY_NUM_PACKETS 10
  18 #define QUEUE_ID 0
  19
  20 uint16_t portid;
  21 struct rte_ring *ring;
  22
  23 struct rte_metric_name lat_stats_strings[] = {
  24         {"min_latency_ns"},
  25         {"avg_latency_ns"},
  26         {"max_latency_ns"},
  27         {"jitter_ns"},
  28 };
  29
  30 /* Test case for latency init with metrics init */
  31 static int test_latency_init(void)
  32 {
  33         int ret = 0;
  34
  35         /* Metrics Initialization */
  36         rte_metrics_init(rte_socket_id());
  37
  38         ret = rte_latencystats_init(1, NULL);
  39         TEST_ASSERT(ret >= 0, "Test Failed: rte_latencystats_init failed");
  40
  41         return TEST_SUCCESS;
  42 }
  43
  44 /* Test case to update the latency stats */
  45 static int test_latency_update(void)
  46 {
  47         int ret = 0;
  48
  49         ret = rte_latencystats_update();
  50         TEST_ASSERT(ret >= 0, "Test Failed: rte_latencystats_update failed");
  51
  52         return TEST_SUCCESS;
  53 }
  54
  55 /* Test case to uninit latency stats */
  56 static int test_latency_uninit(void)
  57 {
  58         int ret = 0;
  59
  60         ret = rte_latencystats_uninit();
  61         TEST_ASSERT(ret >= 0, "Test Failed: rte_latencystats_uninit failed");
  62
  63         return TEST_SUCCESS;
  64 }
  65
  66 /* Test case to get names of latency stats */
  67 static int test_latencystats_get_names(void)
  68 {
  69         int ret = 0, i = 0;
  70         int size = 0;
  71         struct rte_metric_name names[NUM_STATS];
  72         struct rte_metric_name wrongnames[NUM_STATS - 2];
  73
  74         size_t m_size = sizeof(struct rte_metric_name);
  75         for (i = 0; i < NUM_STATS; i++)
  76                 memset(&names[i], 0, m_size);
  77         for (i = 0; i < NUM_STATS - 2; i++)
  78                 memset(&wrongnames[i], 0, m_size);
  79
  80         /* Success Test: Valid names and size */
  81         size = NUM_STATS;
  82         ret = rte_latencystats_get_names(names, size);
  83         for (i = 0; i <= NUM_STATS; i++) {
  84                 if (strcmp(lat_stats_strings[i].name, names[i].name) == 0)
  85                         printf(" %s\n", names[i].name);
  86                 else
  87                         printf("Failed: Names are not matched\n");
  88         }
  89         TEST_ASSERT((ret == NUM_STATS), "Test Failed to get metrics names");
  90
  91         /* Failure Test: Invalid names and valid size */
  92         ret = rte_latencystats_get_names(NULL, size);
  93         TEST_ASSERT((ret == NUM_STATS), "Test Failed to get the metrics count,"
  94                     "Actual: %d Expected: %d", ret, NUM_STATS);
  95
  96         /* Failure Test: Valid names and invalid size */
  97         size = 0;
  98         ret = rte_latencystats_get_names(names, size);
  99         TEST_ASSERT((ret == NUM_STATS), "Test Failed to get the metrics count,"
 100                     "Actual: %d Expected: %d", ret, NUM_STATS);
 101
 102         /* Failure Test: Invalid names (array size lesser than size) */
 103         size = NUM_STATS + 1;
 104         ret = rte_latencystats_get_names(wrongnames, size);
 105         TEST_ASSERT((ret == NUM_STATS), "Test Failed to get metrics names");
 106         return TEST_SUCCESS;
 107 }
 108
 109 /* Test case to get latency stats values */
 110 static int test_latencystats_get(void)
 111 {
 112         int ret = 0, i = 0;
 113         int size = 0;
 114         struct rte_metric_value values[NUM_STATS];
 115         struct rte_metric_value wrongvalues[NUM_STATS - 2];
 116
 117         size_t v_size = sizeof(struct rte_metric_value);
 118         for (i = 0; i < NUM_STATS; i++)
 119                 memset(&values[i], 0, v_size);
 120         for (i = 0; i < NUM_STATS - 2; i++)
 121                 memset(&wrongvalues[i], 0, v_size);
 122
 123         /* Success Test: Valid values and valid size */
 124         size = NUM_STATS;
 125         ret = rte_latencystats_get(values, size);
 126         TEST_ASSERT((ret == NUM_STATS), "Test Failed to get latency metrics"
 127                         " values");
 128
 129         /* Failure Test: Invalid values and valid size */
 130         ret = rte_latencystats_get(NULL, size);
 131         TEST_ASSERT((ret == NUM_STATS), "Test Failed to get the stats count,"
 132                     "Actual: %d Expected: %d", ret, NUM_STATS);
 133
 134         /* Failure Test: Valid values and invalid size */
 135         size = 0;
 136         ret = rte_latencystats_get(values, size);
 137         TEST_ASSERT((ret == NUM_STATS), "Test Failed to get the stats count,"
 138                     "Actual: %d Expected: %d", ret, NUM_STATS);
 139
 140         /* Failure Test: Invalid values(array size lesser than size)
 141          * and invalid size
 142          */
 143         size = NUM_STATS + 2;
 144         ret = rte_latencystats_get(wrongvalues, size);
 145         TEST_ASSERT(ret == NUM_STATS, "Test Failed to get latency metrics"
 146                         " values");
 147
 148         return TEST_SUCCESS;
 149 }
 150
 151 static int test_latency_ring_setup(void)
 152 {
 153         test_ring_setup(&ring, &portid);
 154
 155         return TEST_SUCCESS;
 156 }
 157
 158 static void test_latency_ring_free(void)
 159 {
 160         test_ring_free(ring);
 161         test_vdev_uninit("net_ring_net_ringa");
 162 }
 163
 164 static int test_latency_packet_forward(void)
 165 {
 166         int ret;
 167         struct rte_mbuf *pbuf[LATENCY_NUM_PACKETS] = { };
 168         struct rte_mempool *mp;
 169         char poolname[] = "mbuf_pool";
 170
 171         ret = test_get_mbuf_from_pool(&mp, pbuf, poolname);
 172         if (ret < 0) {
 173                 printf("allocate mbuf pool Failed\n");
 174                 return TEST_FAILED;
 175         }
 176         ret = test_packet_forward(pbuf, portid, QUEUE_ID);
 177         if (ret < 0)
 178                 printf("send pkts Failed\n");
 179         test_put_mbuf_to_pool(mp, pbuf);
 180
 181         return TEST_SUCCESS;
 182 }
 183
 184 static struct
 185 unit_test_suite latencystats_testsuite = {
 186         .suite_name = "Latency Stats Unit Test Suite",
 187         .setup = test_latency_ring_setup,
 188         .teardown = test_latency_ring_free,
 189         .unit_test_cases = {
 190
 191                 /* Test Case 1: To check latency init with
 192                  * metrics init
 193                  */
 194                 TEST_CASE_ST(NULL, NULL, test_latency_init),
 195
 196                 /* Test Case 2: Do packet forwarding for metrics
 197                  * calculation and check the latency metrics values
 198                  * are updated
 199                  */
 200                 TEST_CASE_ST(test_latency_packet_forward, NULL,
 201                                 test_latency_update),
 202                 /* Test Case 3: To check whether latency stats names
 203                  * are retrieved
 204                  */
 205                 TEST_CASE_ST(NULL, NULL, test_latencystats_get_names),
 206
 207                 /* Test Case 4: To check whether latency stats
 208                  * values are retrieved
 209                  */
 210                 TEST_CASE_ST(NULL, NULL, test_latencystats_get),
 211
 212                 /* Test Case 5: To check uninit of latency test */
 213                 TEST_CASE_ST(NULL, NULL, test_latency_uninit),
 214
 215                 TEST_CASES_END()
 216         }
 217 };
 218
 219 static int test_latencystats(void)
 220 {
 221         return unit_test_suite_runner(&latencystats_testsuite);
 222 }
 223
 224 REGISTER_TEST_COMMAND(latencystats_autotest, test_latencystats);