examples/eventdev_pipeline/pipeline_worker_generic.c

   1 /*
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  * Copyright 2016 Intel Corporation.
   4  * Copyright 2017 Cavium, Inc.
   5  */
   6
   7 #include "pipeline_common.h"
   8
   9 static __rte_always_inline int
  10 worker_generic(void *arg)
  11 {
  12         struct rte_event ev;
  13
  14         struct worker_data *data = (struct worker_data *)arg;
  15         uint8_t dev_id = data->dev_id;
  16         uint8_t port_id = data->port_id;
  17         size_t sent = 0, received = 0;
  18         unsigned int lcore_id = rte_lcore_id();
  19
  20         while (!fdata->done) {
  21
  22                 if (fdata->cap.scheduler)
  23                         fdata->cap.scheduler(lcore_id);
  24
  25                 if (!fdata->worker_core[lcore_id]) {
  26                         rte_pause();
  27                         continue;
  28                 }
  29
  30                 const uint16_t nb_rx = rte_event_dequeue_burst(dev_id, port_id,
  31                                 &ev, 1, 0);
  32
  33                 if (nb_rx == 0) {
  34                         rte_pause();
  35                         continue;
  36                 }
  37                 received++;
  38
  39                 /* The first worker stage does classification */
  40                 if (ev.queue_id == cdata.qid[0])
  41                         ev.flow_id = ev.mbuf->hash.rss
  42                                                 % cdata.num_fids;
  43
  44                 ev.queue_id = cdata.next_qid[ev.queue_id];
  45                 ev.op = RTE_EVENT_OP_FORWARD;
  46                 ev.sched_type = cdata.queue_type;
  47
  48                 work();
  49
  50                 while (rte_event_enqueue_burst(dev_id, port_id, &ev, 1) != 1)
  51                         rte_pause();
  52                 sent++;
  53         }
  54
  55         if (!cdata.quiet)
  56                 printf("  worker %u thread done. RX=%zu TX=%zu\n",
  57                                 rte_lcore_id(), received, sent);
  58
  59         return 0;
  60 }
  61
  62 static int
  63 worker_generic_burst(void *arg)
  64 {
  65         struct rte_event events[BATCH_SIZE];
  66
  67         struct worker_data *data = (struct worker_data *)arg;
  68         uint8_t dev_id = data->dev_id;
  69         uint8_t port_id = data->port_id;
  70         size_t sent = 0, received = 0;
  71         unsigned int lcore_id = rte_lcore_id();
  72
  73         while (!fdata->done) {
  74                 uint16_t i;
  75
  76                 if (fdata->cap.scheduler)
  77                         fdata->cap.scheduler(lcore_id);
  78
  79                 if (!fdata->worker_core[lcore_id]) {
  80                         rte_pause();
  81                         continue;
  82                 }
  83
  84                 const uint16_t nb_rx = rte_event_dequeue_burst(dev_id, port_id,
  85                                 events, RTE_DIM(events), 0);
  86
  87                 if (nb_rx == 0) {
  88                         rte_pause();
  89                         continue;
  90                 }
  91                 received += nb_rx;
  92
  93                 for (i = 0; i < nb_rx; i++) {
  94
  95                         /* The first worker stage does classification */
  96                         if (events[i].queue_id == cdata.qid[0])
  97                                 events[i].flow_id = events[i].mbuf->hash.rss
  98                                                         % cdata.num_fids;
  99
 100                         events[i].queue_id = cdata.next_qid[events[i].queue_id];
 101                         events[i].op = RTE_EVENT_OP_FORWARD;
 102                         events[i].sched_type = cdata.queue_type;
 103
 104                         work();
 105                 }
 106                 uint16_t nb_tx = rte_event_enqueue_burst(dev_id, port_id,
 107                                 events, nb_rx);
 108                 while (nb_tx < nb_rx && !fdata->done)
 109                         nb_tx += rte_event_enqueue_burst(dev_id, port_id,
 110                                                         events + nb_tx,
 111                                                         nb_rx - nb_tx);
 112                 sent += nb_tx;
 113         }
 114
 115         if (!cdata.quiet)
 116                 printf("  worker %u thread done. RX=%zu TX=%zu\n",
 117                                 rte_lcore_id(), received, sent);
 118
 119         return 0;
 120 }
 121
 122 static int
 123 setup_eventdev_generic(struct worker_data *worker_data)
 124 {
 125         const uint8_t dev_id = 0;
 126         /* +1 stages is for a SINGLE_LINK TX stage */
 127         const uint8_t nb_queues = cdata.num_stages + 1;
 128         const uint8_t nb_ports = cdata.num_workers;
 129         struct rte_event_dev_config config = {
 130                         .nb_event_queues = nb_queues,
 131                         .nb_event_ports = nb_ports,
 132                         .nb_single_link_event_port_queues = 1,
 133                         .nb_events_limit  = 4096,
 134                         .nb_event_queue_flows = 1024,
 135                         .nb_event_port_dequeue_depth = 128,
 136                         .nb_event_port_enqueue_depth = 128,
 137         };
 138         struct rte_event_port_conf wkr_p_conf = {
 139                         .dequeue_depth = cdata.worker_cq_depth,
 140                         .enqueue_depth = 64,
 141                         .new_event_threshold = 4096,
 142         };
 143         struct rte_event_queue_conf wkr_q_conf = {
 144                         .schedule_type = cdata.queue_type,
 145                         .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
 146                         .nb_atomic_flows = 1024,
 147                         .nb_atomic_order_sequences = 1024,
 148         };
 149         struct rte_event_queue_conf tx_q_conf = {
 150                         .priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
 151                         .event_queue_cfg = RTE_EVENT_QUEUE_CFG_SINGLE_LINK,
 152         };
 153
 154         struct port_link worker_queues[MAX_NUM_STAGES];
 155         uint8_t disable_implicit_release;
 156         unsigned int i;
 157
 158         int ret, ndev = rte_event_dev_count();
 159         if (ndev < 1) {
 160                 printf("%d: No Eventdev Devices Found\n", __LINE__);
 161                 return -1;
 162         }
 163
 164         struct rte_event_dev_info dev_info;
 165         ret = rte_event_dev_info_get(dev_id, &dev_info);
 166         printf("\tEventdev %d: %s\n", dev_id, dev_info.driver_name);
 167
 168         disable_implicit_release = (dev_info.event_dev_cap &
 169                         RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE);
 170
 171         wkr_p_conf.event_port_cfg = disable_implicit_release ?
 172                 RTE_EVENT_PORT_CFG_DISABLE_IMPL_REL : 0;
 173
 174         if (dev_info.max_num_events < config.nb_events_limit)
 175                 config.nb_events_limit = dev_info.max_num_events;
 176         if (dev_info.max_event_port_dequeue_depth <
 177                         config.nb_event_port_dequeue_depth)
 178                 config.nb_event_port_dequeue_depth =
 179                                 dev_info.max_event_port_dequeue_depth;
 180         if (dev_info.max_event_port_enqueue_depth <
 181                         config.nb_event_port_enqueue_depth)
 182                 config.nb_event_port_enqueue_depth =
 183                                 dev_info.max_event_port_enqueue_depth;
 184
 185         ret = rte_event_dev_configure(dev_id, &config);
 186         if (ret < 0) {
 187                 printf("%d: Error configuring device\n", __LINE__);
 188                 return -1;
 189         }
 190
 191         /* Q creation - one load balanced per pipeline stage*/
 192         printf("  Stages:\n");
 193         for (i = 0; i < cdata.num_stages; i++) {
 194                 if (rte_event_queue_setup(dev_id, i, &wkr_q_conf) < 0) {
 195                         printf("%d: error creating qid %d\n", __LINE__, i);
 196                         return -1;
 197                 }
 198                 cdata.qid[i] = i;
 199                 cdata.next_qid[i] = i+1;
 200                 worker_queues[i].queue_id = i;
 201                 if (cdata.enable_queue_priorities) {
 202                         /* calculate priority stepping for each stage, leaving
 203                          * headroom of 1 for the SINGLE_LINK TX below
 204                          */
 205                         const uint32_t prio_delta =
 206                                 (RTE_EVENT_DEV_PRIORITY_LOWEST-1) /  nb_queues;
 207
 208                         /* higher priority for queues closer to tx */
 209                         wkr_q_conf.priority =
 210                                 RTE_EVENT_DEV_PRIORITY_LOWEST - prio_delta * i;
 211                 }
 212
 213                 const char *type_str = "Atomic";
 214                 switch (wkr_q_conf.schedule_type) {
 215                 case RTE_SCHED_TYPE_ORDERED:
 216                         type_str = "Ordered";
 217                         break;
 218                 case RTE_SCHED_TYPE_PARALLEL:
 219                         type_str = "Parallel";
 220                         break;
 221                 }
 222                 printf("\tStage %d, Type %s\tPriority = %d\n", i, type_str,
 223                                 wkr_q_conf.priority);
 224         }
 225         printf("\n");
 226
 227         /* final queue for sending to TX core */
 228         if (rte_event_queue_setup(dev_id, i, &tx_q_conf) < 0) {
 229                 printf("%d: error creating qid %d\n", __LINE__, i);
 230                 return -1;
 231         }
 232         cdata.tx_queue_id = i;
 233
 234         if (wkr_p_conf.new_event_threshold > config.nb_events_limit)
 235                 wkr_p_conf.new_event_threshold = config.nb_events_limit;
 236         if (wkr_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
 237                 wkr_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
 238         if (wkr_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
 239                 wkr_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
 240
 241         /* set up one port per worker, linking to all stage queues */
 242         for (i = 0; i < cdata.num_workers; i++) {
 243                 struct worker_data *w = &worker_data[i];
 244                 w->dev_id = dev_id;
 245                 if (rte_event_port_setup(dev_id, i, &wkr_p_conf) < 0) {
 246                         printf("Error setting up port %d\n", i);
 247                         return -1;
 248                 }
 249
 250                 uint32_t s;
 251                 for (s = 0; s < cdata.num_stages; s++) {
 252                         if (rte_event_port_link(dev_id, i,
 253                                                 &worker_queues[s].queue_id,
 254                                                 &worker_queues[s].priority,
 255                                                 1) != 1) {
 256                                 printf("%d: error creating link for port %d\n",
 257                                                 __LINE__, i);
 258                                 return -1;
 259                         }
 260                 }
 261                 w->port_id = i;
 262         }
 263
 264         ret = rte_event_dev_service_id_get(dev_id,
 265                                 &fdata->evdev_service_id);
 266         if (ret != -ESRCH && ret != 0) {
 267                 printf("Error getting the service ID for sw eventdev\n");
 268                 return -1;
 269         }
 270         rte_service_runstate_set(fdata->evdev_service_id, 1);
 271         rte_service_set_runstate_mapped_check(fdata->evdev_service_id, 0);
 272
 273         return dev_id;
 274 }
 275
 276 /*
 277  * Initializes a given port using global settings and with the RX buffers
 278  * coming from the mbuf_pool passed as a parameter.
 279  */
 280 static inline int
 281 port_init(uint8_t port, struct rte_mempool *mbuf_pool)
 282 {
 283         struct rte_eth_rxconf rx_conf;
 284         static const struct rte_eth_conf port_conf_default = {
 285                 .rxmode = {
 286                         .mq_mode = ETH_MQ_RX_RSS,
 287                         .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
 288                 },
 289                 .rx_adv_conf = {
 290                         .rss_conf = {
 291                                 .rss_hf = ETH_RSS_IP |
 292                                           ETH_RSS_TCP |
 293                                           ETH_RSS_UDP,
 294                         }
 295                 }
 296         };
 297         const uint16_t rx_rings = 1, tx_rings = 1;
 298         const uint16_t rx_ring_size = 512, tx_ring_size = 512;
 299         struct rte_eth_conf port_conf = port_conf_default;
 300         int retval;
 301         uint16_t q;
 302         struct rte_eth_dev_info dev_info;
 303         struct rte_eth_txconf txconf;
 304
 305         if (!rte_eth_dev_is_valid_port(port))
 306                 return -1;
 307
 308         retval = rte_eth_dev_info_get(port, &dev_info);
 309         if (retval != 0) {
 310                 printf("Error during getting device (port %u) info: %s\n",
 311                                 port, strerror(-retval));
 312                 return retval;
 313         }
 314
 315         if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 316                 port_conf.txmode.offloads |=
 317                         DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 318
 319         if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_RSS_HASH)
 320                 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
 321
 322         rx_conf = dev_info.default_rxconf;
 323         rx_conf.offloads = port_conf.rxmode.offloads;
 324
 325         port_conf.rx_adv_conf.rss_conf.rss_hf &=
 326                 dev_info.flow_type_rss_offloads;
 327         if (port_conf.rx_adv_conf.rss_conf.rss_hf !=
 328                         port_conf_default.rx_adv_conf.rss_conf.rss_hf) {
 329                 printf("Port %u modified RSS hash function based on hardware support,"
 330                         "requested:%#"PRIx64" configured:%#"PRIx64"\n",
 331                         port,
 332                         port_conf_default.rx_adv_conf.rss_conf.rss_hf,
 333                         port_conf.rx_adv_conf.rss_conf.rss_hf);
 334         }
 335
 336         /* Configure the Ethernet device. */
 337         retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
 338         if (retval != 0)
 339                 return retval;
 340
 341         /* Allocate and set up 1 RX queue per Ethernet port. */
 342         for (q = 0; q < rx_rings; q++) {
 343                 retval = rte_eth_rx_queue_setup(port, q, rx_ring_size,
 344                                 rte_eth_dev_socket_id(port), &rx_conf,
 345                                 mbuf_pool);
 346                 if (retval < 0)
 347                         return retval;
 348         }
 349
 350         txconf = dev_info.default_txconf;
 351         txconf.offloads = port_conf_default.txmode.offloads;
 352         /* Allocate and set up 1 TX queue per Ethernet port. */
 353         for (q = 0; q < tx_rings; q++) {
 354                 retval = rte_eth_tx_queue_setup(port, q, tx_ring_size,
 355                                 rte_eth_dev_socket_id(port), &txconf);
 356                 if (retval < 0)
 357                         return retval;
 358         }
 359
 360         /* Display the port MAC address. */
 361         struct rte_ether_addr addr;
 362         retval = rte_eth_macaddr_get(port, &addr);
 363         if (retval != 0) {
 364                 printf("Failed to get MAC address (port %u): %s\n",
 365                                 port, rte_strerror(-retval));
 366                 return retval;
 367         }
 368
 369         printf("Port %u MAC: %02" PRIx8 " %02" PRIx8 " %02" PRIx8
 370                         " %02" PRIx8 " %02" PRIx8 " %02" PRIx8 "\n",
 371                         (unsigned int)port,
 372                         addr.addr_bytes[0], addr.addr_bytes[1],
 373                         addr.addr_bytes[2], addr.addr_bytes[3],
 374                         addr.addr_bytes[4], addr.addr_bytes[5]);
 375
 376         /* Enable RX in promiscuous mode for the Ethernet device. */
 377         retval = rte_eth_promiscuous_enable(port);
 378         if (retval != 0)
 379                 return retval;
 380
 381         return 0;
 382 }
 383
 384 static int
 385 init_ports(uint16_t num_ports)
 386 {
 387         uint16_t portid;
 388
 389         if (!cdata.num_mbuf)
 390                 cdata.num_mbuf = 16384 * num_ports;
 391
 392         struct rte_mempool *mp = rte_pktmbuf_pool_create("packet_pool",
 393                         /* mbufs */ cdata.num_mbuf,
 394                         /* cache_size */ 512,
 395                         /* priv_size*/ 0,
 396                         /* data_room_size */ RTE_MBUF_DEFAULT_BUF_SIZE,
 397                         rte_socket_id());
 398
 399         RTE_ETH_FOREACH_DEV(portid)
 400                 if (port_init(portid, mp) != 0)
 401                         rte_exit(EXIT_FAILURE, "Cannot init port %"PRIu16 "\n",
 402                                         portid);
 403
 404         return 0;
 405 }
 406
 407 static void
 408 init_adapters(uint16_t nb_ports)
 409 {
 410         int i;
 411         int ret;
 412         uint8_t tx_port_id = 0;
 413         uint8_t evdev_id = 0;
 414         struct rte_event_dev_info dev_info;
 415
 416         ret = rte_event_dev_info_get(evdev_id, &dev_info);
 417
 418         struct rte_event_port_conf adptr_p_conf = {
 419                 .dequeue_depth = cdata.worker_cq_depth,
 420                 .enqueue_depth = 64,
 421                 .new_event_threshold = 4096,
 422         };
 423
 424         if (adptr_p_conf.new_event_threshold > dev_info.max_num_events)
 425                 adptr_p_conf.new_event_threshold = dev_info.max_num_events;
 426         if (adptr_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth)
 427                 adptr_p_conf.dequeue_depth =
 428                         dev_info.max_event_port_dequeue_depth;
 429         if (adptr_p_conf.enqueue_depth > dev_info.max_event_port_enqueue_depth)
 430                 adptr_p_conf.enqueue_depth =
 431                         dev_info.max_event_port_enqueue_depth;
 432
 433         init_ports(nb_ports);
 434         /* Create one adapter for all the ethernet ports. */
 435         ret = rte_event_eth_rx_adapter_create(cdata.rx_adapter_id, evdev_id,
 436                         &adptr_p_conf);
 437         if (ret)
 438                 rte_exit(EXIT_FAILURE, "failed to create rx adapter[%d]",
 439                                 cdata.rx_adapter_id);
 440
 441         ret = rte_event_eth_tx_adapter_create(cdata.tx_adapter_id, evdev_id,
 442                         &adptr_p_conf);
 443         if (ret)
 444                 rte_exit(EXIT_FAILURE, "failed to create tx adapter[%d]",
 445                                 cdata.tx_adapter_id);
 446
 447         struct rte_event_eth_rx_adapter_queue_conf queue_conf;
 448         memset(&queue_conf, 0, sizeof(queue_conf));
 449         queue_conf.ev.sched_type = cdata.queue_type;
 450         queue_conf.ev.queue_id = cdata.qid[0];
 451
 452         for (i = 0; i < nb_ports; i++) {
 453                 ret = rte_event_eth_rx_adapter_queue_add(cdata.rx_adapter_id, i,
 454                                 -1, &queue_conf);
 455                 if (ret)
 456                         rte_exit(EXIT_FAILURE,
 457                                         "Failed to add queues to Rx adapter");
 458
 459                 ret = rte_event_eth_tx_adapter_queue_add(cdata.tx_adapter_id, i,
 460                                 -1);
 461                 if (ret)
 462                         rte_exit(EXIT_FAILURE,
 463                                         "Failed to add queues to Tx adapter");
 464         }
 465
 466         ret = rte_event_eth_tx_adapter_event_port_get(cdata.tx_adapter_id,
 467                         &tx_port_id);
 468         if (ret)
 469                 rte_exit(EXIT_FAILURE,
 470                                 "Failed to get Tx adapter port id");
 471         ret = rte_event_port_link(evdev_id, tx_port_id, &cdata.tx_queue_id,
 472                         NULL, 1);
 473         if (ret != 1)
 474                 rte_exit(EXIT_FAILURE,
 475                                 "Unable to link Tx adapter port to Tx queue");
 476
 477         ret = rte_event_eth_rx_adapter_service_id_get(cdata.rx_adapter_id,
 478                                 &fdata->rxadptr_service_id);
 479         if (ret != -ESRCH && ret != 0) {
 480                 rte_exit(EXIT_FAILURE,
 481                         "Error getting the service ID for Rx adapter\n");
 482         }
 483         rte_service_runstate_set(fdata->rxadptr_service_id, 1);
 484         rte_service_set_runstate_mapped_check(fdata->rxadptr_service_id, 0);
 485
 486         ret = rte_event_eth_tx_adapter_service_id_get(cdata.tx_adapter_id,
 487                                 &fdata->txadptr_service_id);
 488         if (ret != -ESRCH && ret != 0) {
 489                 rte_exit(EXIT_FAILURE,
 490                         "Error getting the service ID for Tx adapter\n");
 491         }
 492         rte_service_runstate_set(fdata->txadptr_service_id, 1);
 493         rte_service_set_runstate_mapped_check(fdata->txadptr_service_id, 0);
 494
 495         ret = rte_event_eth_rx_adapter_start(cdata.rx_adapter_id);
 496         if (ret)
 497                 rte_exit(EXIT_FAILURE, "Rx adapter[%d] start failed",
 498                                 cdata.rx_adapter_id);
 499
 500         ret = rte_event_eth_tx_adapter_start(cdata.tx_adapter_id);
 501         if (ret)
 502                 rte_exit(EXIT_FAILURE, "Tx adapter[%d] start failed",
 503                                 cdata.tx_adapter_id);
 504
 505         if (rte_event_dev_start(evdev_id) < 0)
 506                 rte_exit(EXIT_FAILURE, "Error starting eventdev");
 507 }
 508
 509 static void
 510 generic_opt_check(void)
 511 {
 512         int i;
 513         int ret;
 514         uint32_t cap = 0;
 515         uint8_t rx_needed = 0;
 516         uint8_t sched_needed = 0;
 517         struct rte_event_dev_info eventdev_info;
 518
 519         memset(&eventdev_info, 0, sizeof(struct rte_event_dev_info));
 520         rte_event_dev_info_get(0, &eventdev_info);
 521
 522         if (cdata.all_type_queues && !(eventdev_info.event_dev_cap &
 523                                 RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES))
 524                 rte_exit(EXIT_FAILURE,
 525                                 "Event dev doesn't support all type queues\n");
 526         sched_needed = !(eventdev_info.event_dev_cap &
 527                 RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED);
 528
 529         RTE_ETH_FOREACH_DEV(i) {
 530                 ret = rte_event_eth_rx_adapter_caps_get(0, i, &cap);
 531                 if (ret)
 532                         rte_exit(EXIT_FAILURE,
 533                                 "failed to get event rx adapter capabilities");
 534                 rx_needed |=
 535                         !(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT);
 536         }
 537
 538         if (cdata.worker_lcore_mask == 0 ||
 539                         (rx_needed && cdata.rx_lcore_mask == 0) ||
 540                         (cdata.tx_lcore_mask == 0) ||
 541                         (sched_needed && cdata.sched_lcore_mask == 0)) {
 542                 printf("Core part of pipeline was not assigned any cores. "
 543                         "This will stall the pipeline, please check core masks "
 544                         "(use -h for details on setting core masks):\n"
 545                         "\trx: %"PRIu64"\n\ttx: %"PRIu64"\n\tsched: %"PRIu64
 546                         "\n\tworkers: %"PRIu64"\n",
 547                         cdata.rx_lcore_mask, cdata.tx_lcore_mask,
 548                         cdata.sched_lcore_mask,
 549                         cdata.worker_lcore_mask);
 550                 rte_exit(-1, "Fix core masks\n");
 551         }
 552
 553         if (!sched_needed)
 554                 memset(fdata->sched_core, 0,
 555                                 sizeof(unsigned int) * MAX_NUM_CORE);
 556         if (!rx_needed)
 557                 memset(fdata->rx_core, 0,
 558                                 sizeof(unsigned int) * MAX_NUM_CORE);
 559 }
 560
 561 void
 562 set_worker_generic_setup_data(struct setup_data *caps, bool burst)
 563 {
 564         if (burst) {
 565                 caps->worker = worker_generic_burst;
 566         } else {
 567                 caps->worker = worker_generic;
 568         }
 569
 570         caps->adptr_setup = init_adapters;
 571         caps->scheduler = schedule_devices;
 572         caps->evdev_setup = setup_eventdev_generic;
 573         caps->check_opt = generic_opt_check;
 574 }