ceph/src/seastar/dpdk/test/test/test_mp_secondary.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdio.h>
  35
  36 #include "test.h"
  37
  38 #include <stdint.h>
  39 #include <stdlib.h>
  40 #include <stdarg.h>
  41 #include <inttypes.h>
  42 #include <sys/queue.h>
  43 #include <errno.h>
  44 #include <stdarg.h>
  45 #include <inttypes.h>
  46 #include <string.h>
  47 #include <stdlib.h>
  48 #include <stdarg.h>
  49 #include <unistd.h>
  50 #include <sys/wait.h>
  51 #include <libgen.h>
  52 #include <dirent.h>
  53 #include <limits.h>
  54
  55 #include <rte_common.h>
  56 #include <rte_memory.h>
  57 #include <rte_memzone.h>
  58 #include <rte_eal.h>
  59 #include <rte_launch.h>
  60 #include <rte_per_lcore.h>
  61 #include <rte_lcore.h>
  62 #include <rte_errno.h>
  63 #include <rte_branch_prediction.h>
  64 #include <rte_atomic.h>
  65 #include <rte_ring.h>
  66 #include <rte_debug.h>
  67 #include <rte_log.h>
  68 #include <rte_mempool.h>
  69
  70 #ifdef RTE_LIBRTE_HASH
  71 #include <rte_hash.h>
  72 #include <rte_fbk_hash.h>
  73 #endif /* RTE_LIBRTE_HASH */
  74
  75 #ifdef RTE_LIBRTE_LPM
  76 #include <rte_lpm.h>
  77 #endif /* RTE_LIBRTE_LPM */
  78
  79 #include <rte_string_fns.h>
  80
  81 #include "process.h"
  82
  83 #define launch_proc(ARGV) process_dup(ARGV, \
  84                 sizeof(ARGV)/(sizeof(ARGV[0])), __func__)
  85
  86 #ifdef RTE_EXEC_ENV_LINUXAPP
  87 static char*
  88 get_current_prefix(char * prefix, int size)
  89 {
  90         char path[PATH_MAX] = {0};
  91         char buf[PATH_MAX] = {0};
  92
  93         /* get file for config (fd is always 3) */
  94         snprintf(path, sizeof(path), "/proc/self/fd/%d", 3);
  95
  96         /* return NULL on error */
  97         if (readlink(path, buf, sizeof(buf)) == -1)
  98                 return NULL;
  99
 100         /* get the basename */
 101         snprintf(buf, sizeof(buf), "%s", basename(buf));
 102
 103         /* copy string all the way from second char up to start of _config */
 104         snprintf(prefix, size, "%.*s",
 105                         (int)(strnlen(buf, sizeof(buf)) - sizeof("_config")),
 106                         &buf[1]);
 107
 108         return prefix;
 109 }
 110 #endif
 111
 112 /*
 113  * This function is called in the primary i.e. main test, to spawn off secondary
 114  * processes to run actual mp tests. Uses fork() and exec pair
 115  */
 116 static int
 117 run_secondary_instances(void)
 118 {
 119         int ret = 0;
 120         char coremask[10];
 121
 122 #ifdef RTE_EXEC_ENV_LINUXAPP
 123         char tmp[PATH_MAX] = {0};
 124         char prefix[PATH_MAX] = {0};
 125
 126         get_current_prefix(tmp, sizeof(tmp));
 127
 128         snprintf(prefix, sizeof(prefix), "--file-prefix=%s", tmp);
 129 #else
 130         const char *prefix = "";
 131 #endif
 132
 133         /* good case, using secondary */
 134         const char *argv1[] = {
 135                         prgname, "-c", coremask, "--proc-type=secondary",
 136                         prefix
 137         };
 138         /* good case, using auto */
 139         const char *argv2[] = {
 140                         prgname, "-c", coremask, "--proc-type=auto",
 141                         prefix
 142         };
 143         /* bad case, using invalid type */
 144         const char *argv3[] = {
 145                         prgname, "-c", coremask, "--proc-type=ERROR",
 146                         prefix
 147         };
 148 #ifdef RTE_EXEC_ENV_LINUXAPP
 149         /* bad case, using invalid file prefix */
 150         const char *argv4[]  = {
 151                         prgname, "-c", coremask, "--proc-type=secondary",
 152                                         "--file-prefix=ERROR"
 153         };
 154 #endif
 155
 156         snprintf(coremask, sizeof(coremask), "%x", \
 157                         (1 << rte_get_master_lcore()));
 158
 159         ret |= launch_proc(argv1);
 160         ret |= launch_proc(argv2);
 161
 162         ret |= !(launch_proc(argv3));
 163 #ifdef RTE_EXEC_ENV_LINUXAPP
 164         ret |= !(launch_proc(argv4));
 165 #endif
 166
 167         return ret;
 168 }
 169
 170 /*
 171  * This function is run in the secondary instance to test that creation of
 172  * objects fails in a secondary
 173  */
 174 static int
 175 run_object_creation_tests(void)
 176 {
 177         const unsigned flags = 0;
 178         const unsigned size = 1024;
 179         const unsigned elt_size = 64;
 180         const unsigned cache_size = 64;
 181         const unsigned priv_data_size = 32;
 182
 183         printf("### Testing object creation - expect lots of mz reserve errors!\n");
 184
 185         rte_errno = 0;
 186         if ((rte_memzone_reserve("test_mz", size, rte_socket_id(),
 187                                  flags) == NULL) &&
 188             (rte_memzone_lookup("test_mz") == NULL)) {
 189                 printf("Error: unexpected return value from rte_memzone_reserve\n");
 190                 return -1;
 191         }
 192         printf("# Checked rte_memzone_reserve() OK\n");
 193
 194         rte_errno = 0;
 195         if ((rte_ring_create(
 196                      "test_ring", size, rte_socket_id(), flags) == NULL) &&
 197                     (rte_ring_lookup("test_ring") == NULL)){
 198                 printf("Error: unexpected return value from rte_ring_create()\n");
 199                 return -1;
 200         }
 201         printf("# Checked rte_ring_create() OK\n");
 202
 203         rte_errno = 0;
 204         if ((rte_mempool_create("test_mp", size, elt_size, cache_size,
 205                                 priv_data_size, NULL, NULL, NULL, NULL,
 206                                 rte_socket_id(), flags) == NULL) &&
 207              (rte_mempool_lookup("test_mp") == NULL)){
 208                 printf("Error: unexpected return value from rte_mempool_create()\n");
 209                 return -1;
 210         }
 211         printf("# Checked rte_mempool_create() OK\n");
 212
 213 #ifdef RTE_LIBRTE_HASH
 214         const struct rte_hash_parameters hash_params = { .name = "test_mp_hash" };
 215         rte_errno=0;
 216         if ((rte_hash_create(&hash_params) != NULL) &&
 217             (rte_hash_find_existing(hash_params.name) == NULL)){
 218                 printf("Error: unexpected return value from rte_hash_create()\n");
 219                 return -1;
 220         }
 221         printf("# Checked rte_hash_create() OK\n");
 222
 223         const struct rte_fbk_hash_params fbk_params = { .name = "test_fbk_mp_hash" };
 224         rte_errno=0;
 225         if ((rte_fbk_hash_create(&fbk_params) != NULL) &&
 226             (rte_fbk_hash_find_existing(fbk_params.name) == NULL)){
 227                 printf("Error: unexpected return value from rte_fbk_hash_create()\n");
 228                 return -1;
 229         }
 230         printf("# Checked rte_fbk_hash_create() OK\n");
 231 #endif
 232
 233 #ifdef RTE_LIBRTE_LPM
 234         rte_errno=0;
 235         struct rte_lpm_config config;
 236
 237         config.max_rules = rte_socket_id();
 238         config.number_tbl8s = 256;
 239         config.flags = 0;
 240         if ((rte_lpm_create("test_lpm", size, &config) != NULL) &&
 241             (rte_lpm_find_existing("test_lpm") == NULL)){
 242                 printf("Error: unexpected return value from rte_lpm_create()\n");
 243                 return -1;
 244         }
 245         printf("# Checked rte_lpm_create() OK\n");
 246 #endif
 247
 248         return 0;
 249 }
 250
 251 /* if called in a primary process, just spawns off a secondary process to
 252  * run validation tests - which brings us right back here again...
 253  * if called in a secondary process, this runs a series of API tests to check
 254  * how things run in a secondary instance.
 255  */
 256 int
 257 test_mp_secondary(void)
 258 {
 259         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 260                 return run_secondary_instances();
 261         }
 262
 263         printf("IN SECONDARY PROCESS\n");
 264
 265         return run_object_creation_tests();
 266 }
 267
 268 REGISTER_TEST_COMMAND(multiprocess_autotest, test_mp_secondary);