test/test/test_mp_secondary.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6
   7 #include "test.h"
   8
   9 #include <stdint.h>
  10 #include <stdlib.h>
  11 #include <stdarg.h>
  12 #include <inttypes.h>
  13 #include <sys/queue.h>
  14 #include <errno.h>
  15 #include <string.h>
  16 #include <unistd.h>
  17 #include <sys/wait.h>
  18 #include <libgen.h>
  19 #include <dirent.h>
  20 #include <limits.h>
  21
  22 #include <rte_common.h>
  23 #include <rte_memory.h>
  24 #include <rte_memzone.h>
  25 #include <rte_eal.h>
  26 #include <rte_launch.h>
  27 #include <rte_per_lcore.h>
  28 #include <rte_lcore.h>
  29 #include <rte_errno.h>
  30 #include <rte_branch_prediction.h>
  31 #include <rte_atomic.h>
  32 #include <rte_ring.h>
  33 #include <rte_debug.h>
  34 #include <rte_log.h>
  35 #include <rte_mempool.h>
  36
  37 #ifdef RTE_LIBRTE_HASH
  38 #include <rte_hash.h>
  39 #include <rte_fbk_hash.h>
  40 #endif /* RTE_LIBRTE_HASH */
  41
  42 #ifdef RTE_LIBRTE_LPM
  43 #include <rte_lpm.h>
  44 #endif /* RTE_LIBRTE_LPM */
  45
  46 #include <rte_string_fns.h>
  47
  48 #include "process.h"
  49
  50 #define launch_proc(ARGV) process_dup(ARGV, \
  51                 sizeof(ARGV)/(sizeof(ARGV[0])), __func__)
  52
  53 #ifdef RTE_EXEC_ENV_LINUXAPP
  54 static char*
  55 get_current_prefix(char * prefix, int size)
  56 {
  57         char path[PATH_MAX] = {0};
  58         char buf[PATH_MAX] = {0};
  59
  60         /* get file for config (fd is always 3) */
  61         snprintf(path, sizeof(path), "/proc/self/fd/%d", 3);
  62
  63         /* return NULL on error */
  64         if (readlink(path, buf, sizeof(buf)) == -1)
  65                 return NULL;
  66
  67         /* get the basename */
  68         snprintf(buf, sizeof(buf), "%s", basename(buf));
  69
  70         /* copy string all the way from second char up to start of _config */
  71         snprintf(prefix, size, "%.*s",
  72                         (int)(strnlen(buf, sizeof(buf)) - sizeof("_config")),
  73                         &buf[1]);
  74
  75         return prefix;
  76 }
  77 #endif
  78
  79 /*
  80  * This function is called in the primary i.e. main test, to spawn off secondary
  81  * processes to run actual mp tests. Uses fork() and exec pair
  82  */
  83 static int
  84 run_secondary_instances(void)
  85 {
  86         int ret = 0;
  87         char coremask[10];
  88
  89 #ifdef RTE_EXEC_ENV_LINUXAPP
  90         char tmp[PATH_MAX] = {0};
  91         char prefix[PATH_MAX] = {0};
  92
  93         get_current_prefix(tmp, sizeof(tmp));
  94
  95         snprintf(prefix, sizeof(prefix), "--file-prefix=%s", tmp);
  96 #else
  97         const char *prefix = "";
  98 #endif
  99
 100         /* good case, using secondary */
 101         const char *argv1[] = {
 102                         prgname, "-c", coremask, "--proc-type=secondary",
 103                         prefix
 104         };
 105         /* good case, using auto */
 106         const char *argv2[] = {
 107                         prgname, "-c", coremask, "--proc-type=auto",
 108                         prefix
 109         };
 110         /* bad case, using invalid type */
 111         const char *argv3[] = {
 112                         prgname, "-c", coremask, "--proc-type=ERROR",
 113                         prefix
 114         };
 115 #ifdef RTE_EXEC_ENV_LINUXAPP
 116         /* bad case, using invalid file prefix */
 117         const char *argv4[]  = {
 118                         prgname, "-c", coremask, "--proc-type=secondary",
 119                                         "--file-prefix=ERROR"
 120         };
 121 #endif
 122
 123         snprintf(coremask, sizeof(coremask), "%x", \
 124                         (1 << rte_get_master_lcore()));
 125
 126         ret |= launch_proc(argv1);
 127         ret |= launch_proc(argv2);
 128
 129         ret |= !(launch_proc(argv3));
 130 #ifdef RTE_EXEC_ENV_LINUXAPP
 131         ret |= !(launch_proc(argv4));
 132 #endif
 133
 134         return ret;
 135 }
 136
 137 /*
 138  * This function is run in the secondary instance to test that creation of
 139  * objects fails in a secondary
 140  */
 141 static int
 142 run_object_creation_tests(void)
 143 {
 144         const unsigned flags = 0;
 145         const unsigned size = 1024;
 146         const unsigned elt_size = 64;
 147         const unsigned cache_size = 64;
 148         const unsigned priv_data_size = 32;
 149
 150         printf("### Testing object creation - expect lots of mz reserve errors!\n");
 151
 152         rte_errno = 0;
 153         if ((rte_memzone_reserve("test_mz", size, rte_socket_id(),
 154                                  flags) == NULL) &&
 155             (rte_memzone_lookup("test_mz") == NULL)) {
 156                 printf("Error: unexpected return value from rte_memzone_reserve\n");
 157                 return -1;
 158         }
 159         printf("# Checked rte_memzone_reserve() OK\n");
 160
 161         rte_errno = 0;
 162         if ((rte_ring_create(
 163                      "test_ring", size, rte_socket_id(), flags) == NULL) &&
 164                     (rte_ring_lookup("test_ring") == NULL)){
 165                 printf("Error: unexpected return value from rte_ring_create()\n");
 166                 return -1;
 167         }
 168         printf("# Checked rte_ring_create() OK\n");
 169
 170         rte_errno = 0;
 171         if ((rte_mempool_create("test_mp", size, elt_size, cache_size,
 172                                 priv_data_size, NULL, NULL, NULL, NULL,
 173                                 rte_socket_id(), flags) == NULL) &&
 174              (rte_mempool_lookup("test_mp") == NULL)){
 175                 printf("Error: unexpected return value from rte_mempool_create()\n");
 176                 return -1;
 177         }
 178         printf("# Checked rte_mempool_create() OK\n");
 179
 180 #ifdef RTE_LIBRTE_HASH
 181         const struct rte_hash_parameters hash_params = { .name = "test_mp_hash" };
 182         rte_errno=0;
 183         if ((rte_hash_create(&hash_params) != NULL) &&
 184             (rte_hash_find_existing(hash_params.name) == NULL)){
 185                 printf("Error: unexpected return value from rte_hash_create()\n");
 186                 return -1;
 187         }
 188         printf("# Checked rte_hash_create() OK\n");
 189
 190         const struct rte_fbk_hash_params fbk_params = { .name = "test_fbk_mp_hash" };
 191         rte_errno=0;
 192         if ((rte_fbk_hash_create(&fbk_params) != NULL) &&
 193             (rte_fbk_hash_find_existing(fbk_params.name) == NULL)){
 194                 printf("Error: unexpected return value from rte_fbk_hash_create()\n");
 195                 return -1;
 196         }
 197         printf("# Checked rte_fbk_hash_create() OK\n");
 198 #endif
 199
 200 #ifdef RTE_LIBRTE_LPM
 201         rte_errno=0;
 202         struct rte_lpm_config config;
 203
 204         config.max_rules = rte_socket_id();
 205         config.number_tbl8s = 256;
 206         config.flags = 0;
 207         if ((rte_lpm_create("test_lpm", size, &config) != NULL) &&
 208             (rte_lpm_find_existing("test_lpm") == NULL)){
 209                 printf("Error: unexpected return value from rte_lpm_create()\n");
 210                 return -1;
 211         }
 212         printf("# Checked rte_lpm_create() OK\n");
 213 #endif
 214
 215         return 0;
 216 }
 217
 218 /* if called in a primary process, just spawns off a secondary process to
 219  * run validation tests - which brings us right back here again...
 220  * if called in a secondary process, this runs a series of API tests to check
 221  * how things run in a secondary instance.
 222  */
 223 int
 224 test_mp_secondary(void)
 225 {
 226         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 227                 return run_secondary_instances();
 228         }
 229
 230         printf("IN SECONDARY PROCESS\n");
 231
 232         return run_object_creation_tests();
 233 }
 234
 235 REGISTER_TEST_COMMAND(multiprocess_autotest, test_mp_secondary);