test/test/test_power_kvm_vm.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdint.h>
   7 #include <unistd.h>
   8 #include <limits.h>
   9 #include <string.h>
  10
  11 #include "test.h"
  12
  13 #ifndef RTE_LIBRTE_POWER
  14
  15 static int
  16 test_power_kvm_vm(void)
  17 {
  18         printf("Power management library not supported, skipping test\n");
  19         return TEST_SKIPPED;
  20 }
  21
  22 #else
  23 #include <rte_power.h>
  24
  25 #define TEST_POWER_VM_LCORE_ID            0U
  26 #define TEST_POWER_VM_LCORE_OUT_OF_BOUNDS (RTE_MAX_LCORE+1)
  27 #define TEST_POWER_VM_LCORE_INVALID       1U
  28 #define TEMP_POWER_MANAGER_FILE_PATH  "/tmp/testpm"
  29
  30 int guest_channel_host_connect(const char *path, unsigned int lcore_id);
  31
  32 static int
  33 test_power_kvm_vm(void)
  34 {
  35         int ret;
  36         enum power_management_env env;
  37         char fPath[PATH_MAX];
  38         FILE *fPtr = NULL;
  39
  40         ret = rte_power_set_env(PM_ENV_KVM_VM);
  41         if (ret != 0) {
  42                 printf("Failed on setting environment to PM_ENV_KVM_VM\n");
  43                 return -1;
  44         }
  45
  46         /* Test environment configuration */
  47         env = rte_power_get_env();
  48         if (env != PM_ENV_KVM_VM) {
  49                 printf("Unexpectedly got a Power Management environment other than "
  50                                 "KVM VM\n");
  51                 rte_power_unset_env();
  52                 return -1;
  53         }
  54
  55         /* verify that function pointers are not NULL */
  56         if (rte_power_freqs == NULL) {
  57                 printf("rte_power_freqs should not be NULL, environment has not been "
  58                                 "initialised\n");
  59                 return -1;
  60         }
  61         if (rte_power_get_freq == NULL) {
  62                 printf("rte_power_get_freq should not be NULL, environment has not "
  63                                 "been initialised\n");
  64                 return -1;
  65         }
  66         if (rte_power_set_freq == NULL) {
  67                 printf("rte_power_set_freq should not be NULL, environment has not "
  68                                 "been initialised\n");
  69                 return -1;
  70         }
  71         if (rte_power_freq_up == NULL) {
  72                 printf("rte_power_freq_up should not be NULL, environment has not "
  73                                 "been initialised\n");
  74                 return -1;
  75         }
  76         if (rte_power_freq_down == NULL) {
  77                 printf("rte_power_freq_down should not be NULL, environment has not "
  78                                 "been initialised\n");
  79                 return -1;
  80         }
  81         if (rte_power_freq_max == NULL) {
  82                 printf("rte_power_freq_max should not be NULL, environment has not "
  83                                 "been initialised\n");
  84                 return -1;
  85         }
  86         if (rte_power_freq_min == NULL) {
  87                 printf("rte_power_freq_min should not be NULL, environment has not "
  88                                 "been initialised\n");
  89                 return -1;
  90         }
  91         /* Test initialisation of an out of bounds lcore */
  92         ret = rte_power_init(TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
  93         if (ret != -1) {
  94                 printf("rte_power_init unexpectedly succeeded on an invalid lcore %u\n",
  95                                 TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
  96                 rte_power_unset_env();
  97                 return -1;
  98         }
  99
 100         /* Test initialisation of a valid lcore */
 101         ret = rte_power_init(TEST_POWER_VM_LCORE_ID);
 102         if (ret < 0) {
 103                 printf("rte_power_init failed as expected in host\n");
 104                 /* This test would be successful when run on VM,
 105                  * in order to run in Host itself, temporary file path
 106                  * is created and same is used for further communication
 107                  */
 108
 109                 snprintf(fPath, PATH_MAX, "%s.%u",
 110                         TEMP_POWER_MANAGER_FILE_PATH, TEST_POWER_VM_LCORE_ID);
 111                 fPtr = fopen(fPath, "w");
 112                 if (fPtr == NULL) {
 113                         printf(" Unable to create file\n");
 114                         rte_power_unset_env();
 115                         return -1;
 116                 }
 117                 ret = guest_channel_host_connect(TEMP_POWER_MANAGER_FILE_PATH,
 118                         TEST_POWER_VM_LCORE_ID);
 119                 if (ret == 0)
 120                         printf("guest_channel_host_connect successful\n");
 121                 else {
 122                         printf("guest_channel_host_connect failed\n");
 123                         rte_power_unset_env();
 124                         fclose(fPtr);
 125                         remove(fPath);
 126                         return -1;
 127                 }
 128         }
 129
 130         /* Test initialisation of previously initialised lcore */
 131         ret = rte_power_init(TEST_POWER_VM_LCORE_ID);
 132         if (ret == 0) {
 133                 printf("rte_power_init unexpectedly succeeded on calling init twice on"
 134                                 " lcore %u\n", TEST_POWER_VM_LCORE_ID);
 135                 goto fail_all;
 136         }
 137
 138         /* Test frequency up of invalid lcore */
 139         ret = rte_power_freq_up(TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 140         if (ret == 1) {
 141                 printf("rte_power_freq_up unexpectedly succeeded on invalid lcore %u\n",
 142                                 TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 143                 goto fail_all;
 144         }
 145
 146         /* Test frequency down of invalid lcore */
 147         ret = rte_power_freq_down(TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 148         if (ret == 1) {
 149                 printf("rte_power_freq_down unexpectedly succeeded on invalid lcore "
 150                                 "%u\n", TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 151                 goto fail_all;
 152         }
 153
 154         /* Test frequency min of invalid lcore */
 155         ret = rte_power_freq_min(TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 156         if (ret == 1) {
 157                 printf("rte_power_freq_min unexpectedly succeeded on invalid lcore "
 158                                 "%u\n", TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 159                 goto fail_all;
 160         }
 161
 162         /* Test frequency max of invalid lcore */
 163         ret = rte_power_freq_max(TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 164         if (ret == 1) {
 165                 printf("rte_power_freq_max unexpectedly succeeded on invalid lcore "
 166                                 "%u\n", TEST_POWER_VM_LCORE_OUT_OF_BOUNDS);
 167                 goto fail_all;
 168         }
 169
 170         /* Test frequency up of valid but uninitialised lcore */
 171         ret = rte_power_freq_up(TEST_POWER_VM_LCORE_INVALID);
 172         if (ret == 1) {
 173                 printf("rte_power_freq_up unexpectedly succeeded on invalid lcore %u\n",
 174                                 TEST_POWER_VM_LCORE_INVALID);
 175                 goto fail_all;
 176         }
 177
 178         /* Test frequency down of valid but uninitialised lcore */
 179         ret = rte_power_freq_down(TEST_POWER_VM_LCORE_INVALID);
 180         if (ret == 1) {
 181                 printf("rte_power_freq_down unexpectedly succeeded on invalid lcore "
 182                                 "%u\n", TEST_POWER_VM_LCORE_INVALID);
 183                 goto fail_all;
 184         }
 185
 186         /* Test frequency min of valid but uninitialised lcore */
 187         ret = rte_power_freq_min(TEST_POWER_VM_LCORE_INVALID);
 188         if (ret == 1) {
 189                 printf("rte_power_freq_min unexpectedly succeeded on invalid lcore "
 190                                 "%u\n", TEST_POWER_VM_LCORE_INVALID);
 191                 goto fail_all;
 192         }
 193
 194         /* Test frequency max of valid but uninitialised lcore */
 195         ret = rte_power_freq_max(TEST_POWER_VM_LCORE_INVALID);
 196         if (ret == 1) {
 197                 printf("rte_power_freq_max unexpectedly succeeded on invalid lcore "
 198                                 "%u\n", TEST_POWER_VM_LCORE_INVALID);
 199                 goto fail_all;
 200         }
 201
 202         /* Test KVM_VM Enable Turbo of valid core */
 203         ret = rte_power_freq_enable_turbo(TEST_POWER_VM_LCORE_ID);
 204         if (ret == -1) {
 205                 printf("rte_power_freq_enable_turbo failed on valid lcore"
 206                         "%u\n", TEST_POWER_VM_LCORE_ID);
 207                 goto fail_all;
 208         }
 209
 210         /* Test KVM_VM Disable Turbo of valid core */
 211         ret = rte_power_freq_disable_turbo(TEST_POWER_VM_LCORE_ID);
 212         if (ret == -1) {
 213                 printf("rte_power_freq_disable_turbo failed on valid lcore"
 214                 "%u\n", TEST_POWER_VM_LCORE_ID);
 215                 goto fail_all;
 216         }
 217
 218         /* Test frequency up of valid lcore */
 219         ret = rte_power_freq_up(TEST_POWER_VM_LCORE_ID);
 220         if (ret != 1) {
 221                 printf("rte_power_freq_up unexpectedly failed on valid lcore %u\n",
 222                                 TEST_POWER_VM_LCORE_ID);
 223                 goto fail_all;
 224         }
 225
 226         /* Test frequency down of valid lcore */
 227         ret = rte_power_freq_down(TEST_POWER_VM_LCORE_ID);
 228         if (ret != 1) {
 229                 printf("rte_power_freq_down unexpectedly failed on valid lcore "
 230                                 "%u\n", TEST_POWER_VM_LCORE_ID);
 231                 goto fail_all;
 232         }
 233
 234         /* Test frequency min of valid lcore */
 235         ret = rte_power_freq_min(TEST_POWER_VM_LCORE_ID);
 236         if (ret != 1) {
 237                 printf("rte_power_freq_min unexpectedly failed on valid lcore "
 238                                 "%u\n", TEST_POWER_VM_LCORE_ID);
 239                 goto fail_all;
 240         }
 241
 242         /* Test frequency max of valid lcore */
 243         ret = rte_power_freq_max(TEST_POWER_VM_LCORE_ID);
 244         if (ret != 1) {
 245                 printf("rte_power_freq_max unexpectedly failed on valid lcore "
 246                                 "%u\n", TEST_POWER_VM_LCORE_ID);
 247                 goto fail_all;
 248         }
 249
 250         /* Test unsupported rte_power_freqs */
 251         ret = rte_power_freqs(TEST_POWER_VM_LCORE_ID, NULL, 0);
 252         if (ret != -ENOTSUP) {
 253                 printf("rte_power_freqs did not return the expected -ENOTSUP(%d) but "
 254                                 "returned %d\n", -ENOTSUP, ret);
 255                 goto fail_all;
 256         }
 257
 258         /* Test unsupported rte_power_get_freq */
 259         ret = rte_power_get_freq(TEST_POWER_VM_LCORE_ID);
 260         if (ret != -ENOTSUP) {
 261                 printf("rte_power_get_freq did not return the expected -ENOTSUP(%d) but"
 262                                 " returned %d for lcore %u\n",
 263                                 -ENOTSUP, ret, TEST_POWER_VM_LCORE_ID);
 264                 goto fail_all;
 265         }
 266
 267         /* Test unsupported rte_power_set_freq */
 268         ret = rte_power_set_freq(TEST_POWER_VM_LCORE_ID, 0);
 269         if (ret != -ENOTSUP) {
 270                 printf("rte_power_set_freq did not return the expected -ENOTSUP(%d) but"
 271                                 " returned %d for lcore %u\n",
 272                                 -ENOTSUP, ret, TEST_POWER_VM_LCORE_ID);
 273                 goto fail_all;
 274         }
 275
 276         /* Test removing of an lcore */
 277         ret = rte_power_exit(TEST_POWER_VM_LCORE_ID);
 278         if (ret != 0) {
 279                 printf("rte_power_exit unexpectedly failed on valid lcore %u,"
 280                                 "please ensure that the environment has been configured "
 281                                 "correctly\n", TEST_POWER_VM_LCORE_ID);
 282                 goto fail_all;
 283         }
 284
 285         /* Test frequency up of previously removed lcore */
 286         ret = rte_power_freq_up(TEST_POWER_VM_LCORE_ID);
 287         if (ret == 0) {
 288                 printf("rte_power_freq_up unexpectedly succeeded on a removed "
 289                                 "lcore %u\n", TEST_POWER_VM_LCORE_ID);
 290                 return -1;
 291         }
 292
 293         /* Test frequency down of previously removed lcore */
 294         ret = rte_power_freq_down(TEST_POWER_VM_LCORE_ID);
 295         if (ret == 0) {
 296                 printf("rte_power_freq_down unexpectedly succeeded on a removed "
 297                                 "lcore %u\n", TEST_POWER_VM_LCORE_ID);
 298                 return -1;
 299         }
 300
 301         /* Test frequency min of previously removed lcore */
 302         ret = rte_power_freq_min(TEST_POWER_VM_LCORE_ID);
 303         if (ret == 0) {
 304                 printf("rte_power_freq_min unexpectedly succeeded on a removed "
 305                                 "lcore %u\n", TEST_POWER_VM_LCORE_ID);
 306                 return -1;
 307         }
 308
 309         /* Test frequency max of previously removed lcore */
 310         ret = rte_power_freq_max(TEST_POWER_VM_LCORE_ID);
 311         if (ret == 0) {
 312                 printf("rte_power_freq_max unexpectedly succeeded on a removed "
 313                                 "lcore %u\n", TEST_POWER_VM_LCORE_ID);
 314                 return -1;
 315         }
 316         rte_power_unset_env();
 317         if (fPtr != NULL) {
 318                 fclose(fPtr);
 319                 remove(fPath);
 320         }
 321         return 0;
 322 fail_all:
 323         rte_power_exit(TEST_POWER_VM_LCORE_ID);
 324         rte_power_unset_env();
 325         if (fPtr != NULL) {
 326                 fclose(fPtr);
 327                 remove(fPath);
 328         }
 329         return -1;
 330 }
 331 #endif
 332
 333 REGISTER_TEST_COMMAND(power_kvm_vm_autotest, test_power_kvm_vm);