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_events_limit  = 4096,
 133                         .nb_event_queue_flows = 1024,
 134                         .nb_event_port_dequeue_depth = 128,
 135                         .nb_event_port_enqueue_depth = 128,
 136         };
 137         struct rte_event_port_conf wkr_p_conf = {
 138                         .dequeue_depth = cdata.worker_cq_depth,
 139                         .enqueue_depth = 64,
 140                         .new_event_threshold = 4096,
 141         };
 142         struct rte_event_queue_conf wkr_q_conf = {
 143                         .schedule_type = cdata.queue_type,
 144                         .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
 145                         .nb_atomic_flows = 1024,
 146                 .nb_atomic_order_sequences = 1024,
 147         };
 148         struct rte_event_queue_conf tx_q_conf = {
 149                         .priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
 150                         .event_queue_cfg = RTE_EVENT_QUEUE_CFG_SINGLE_LINK,
 151         };
 152
 153         struct port_link worker_queues[MAX_NUM_STAGES];
 154         uint8_t disable_implicit_release;
 155         unsigned int i;
 156
 157         int ret, ndev = rte_event_dev_count();
 158         if (ndev < 1) {
 159                 printf("%d: No Eventdev Devices Found\n", __LINE__);
 160                 return -1;
 161         }
 162
 163         struct rte_event_dev_info dev_info;
 164         ret = rte_event_dev_info_get(dev_id, &dev_info);
 165         printf("\tEventdev %d: %s\n", dev_id, dev_info.driver_name);
 166
 167         disable_implicit_release = (dev_info.event_dev_cap &
 168                         RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE);
 169
 170         wkr_p_conf.disable_implicit_release = disable_implicit_release;
 171
 172         if (dev_info.max_num_events < config.nb_events_limit)
 173                 config.nb_events_limit = dev_info.max_num_events;
 174         if (dev_info.max_event_port_dequeue_depth <
 175                         config.nb_event_port_dequeue_depth)
 176                 config.nb_event_port_dequeue_depth =
 177                                 dev_info.max_event_port_dequeue_depth;
 178         if (dev_info.max_event_port_enqueue_depth <
 179                         config.nb_event_port_enqueue_depth)
 180                 config.nb_event_port_enqueue_depth =
 181                                 dev_info.max_event_port_enqueue_depth;
 182
 183         ret = rte_event_dev_configure(dev_id, &config);
 184         if (ret < 0) {
 185                 printf("%d: Error configuring device\n", __LINE__);
 186                 return -1;
 187         }
 188
 189         /* Q creation - one load balanced per pipeline stage*/
 190         printf("  Stages:\n");
 191         for (i = 0; i < cdata.num_stages; i++) {
 192                 if (rte_event_queue_setup(dev_id, i, &wkr_q_conf) < 0) {
 193                         printf("%d: error creating qid %d\n", __LINE__, i);
 194                         return -1;
 195                 }
 196                 cdata.qid[i] = i;
 197                 cdata.next_qid[i] = i+1;
 198                 worker_queues[i].queue_id = i;
 199                 if (cdata.enable_queue_priorities) {
 200                         /* calculate priority stepping for each stage, leaving
 201                          * headroom of 1 for the SINGLE_LINK TX below
 202                          */
 203                         const uint32_t prio_delta =
 204                                 (RTE_EVENT_DEV_PRIORITY_LOWEST-1) /  nb_queues;
 205
 206                         /* higher priority for queues closer to tx */
 207                         wkr_q_conf.priority =
 208                                 RTE_EVENT_DEV_PRIORITY_LOWEST - prio_delta * i;
 209                 }
 210
 211                 const char *type_str = "Atomic";
 212                 switch (wkr_q_conf.schedule_type) {
 213                 case RTE_SCHED_TYPE_ORDERED:
 214                         type_str = "Ordered";
 215                         break;
 216                 case RTE_SCHED_TYPE_PARALLEL:
 217                         type_str = "Parallel";
 218                         break;
 219                 }
 220                 printf("\tStage %d, Type %s\tPriority = %d\n", i, type_str,
 221                                 wkr_q_conf.priority);
 222         }
 223         printf("\n");
 224
 225         /* final queue for sending to TX core */
 226         if (rte_event_queue_setup(dev_id, i, &tx_q_conf) < 0) {
 227                 printf("%d: error creating qid %d\n", __LINE__, i);
 228                 return -1;
 229         }
 230         cdata.tx_queue_id = i;
 231
 232         if (wkr_p_conf.new_event_threshold > config.nb_events_limit)
 233                 wkr_p_conf.new_event_threshold = config.nb_events_limit;
 234         if (wkr_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
 235                 wkr_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
 236         if (wkr_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
 237                 wkr_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
 238
 239         /* set up one port per worker, linking to all stage queues */
 240         for (i = 0; i < cdata.num_workers; i++) {
 241                 struct worker_data *w = &worker_data[i];
 242                 w->dev_id = dev_id;
 243                 if (rte_event_port_setup(dev_id, i, &wkr_p_conf) < 0) {
 244                         printf("Error setting up port %d\n", i);
 245                         return -1;
 246                 }
 247
 248                 uint32_t s;
 249                 for (s = 0; s < cdata.num_stages; s++) {
 250                         if (rte_event_port_link(dev_id, i,
 251                                                 &worker_queues[s].queue_id,
 252                                                 &worker_queues[s].priority,
 253                                                 1) != 1) {
 254                                 printf("%d: error creating link for port %d\n",
 255                                                 __LINE__, i);
 256                                 return -1;
 257                         }
 258                 }
 259                 w->port_id = i;
 260         }
 261
 262         ret = rte_event_dev_service_id_get(dev_id,
 263                                 &fdata->evdev_service_id);
 264         if (ret != -ESRCH && ret != 0) {
 265                 printf("Error getting the service ID for sw eventdev\n");
 266                 return -1;
 267         }
 268         rte_service_runstate_set(fdata->evdev_service_id, 1);
 269         rte_service_set_runstate_mapped_check(fdata->evdev_service_id, 0);
 270
 271         return dev_id;
 272 }
 273
 274 static void
 275 init_adapters(uint16_t nb_ports)
 276 {
 277         int i;
 278         int ret;
 279         uint8_t tx_port_id = 0;
 280         uint8_t evdev_id = 0;
 281         struct rte_event_dev_info dev_info;
 282
 283         ret = rte_event_dev_info_get(evdev_id, &dev_info);
 284
 285         struct rte_event_port_conf adptr_p_conf = {
 286                 .dequeue_depth = cdata.worker_cq_depth,
 287                 .enqueue_depth = 64,
 288                 .new_event_threshold = 4096,
 289         };
 290
 291         if (adptr_p_conf.new_event_threshold > dev_info.max_num_events)
 292                 adptr_p_conf.new_event_threshold = dev_info.max_num_events;
 293         if (adptr_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth)
 294                 adptr_p_conf.dequeue_depth =
 295                         dev_info.max_event_port_dequeue_depth;
 296         if (adptr_p_conf.enqueue_depth > dev_info.max_event_port_enqueue_depth)
 297                 adptr_p_conf.enqueue_depth =
 298                         dev_info.max_event_port_enqueue_depth;
 299
 300         /* Create one adapter for all the ethernet ports. */
 301         ret = rte_event_eth_rx_adapter_create(cdata.rx_adapter_id, evdev_id,
 302                         &adptr_p_conf);
 303         if (ret)
 304                 rte_exit(EXIT_FAILURE, "failed to create rx adapter[%d]",
 305                                 cdata.rx_adapter_id);
 306
 307         ret = rte_event_eth_tx_adapter_create(cdata.tx_adapter_id, evdev_id,
 308                         &adptr_p_conf);
 309         if (ret)
 310                 rte_exit(EXIT_FAILURE, "failed to create tx adapter[%d]",
 311                                 cdata.tx_adapter_id);
 312
 313         struct rte_event_eth_rx_adapter_queue_conf queue_conf;
 314         memset(&queue_conf, 0, sizeof(queue_conf));
 315         queue_conf.ev.sched_type = cdata.queue_type;
 316         queue_conf.ev.queue_id = cdata.qid[0];
 317
 318         for (i = 0; i < nb_ports; i++) {
 319                 ret = rte_event_eth_rx_adapter_queue_add(cdata.rx_adapter_id, i,
 320                                 -1, &queue_conf);
 321                 if (ret)
 322                         rte_exit(EXIT_FAILURE,
 323                                         "Failed to add queues to Rx adapter");
 324
 325                 ret = rte_event_eth_tx_adapter_queue_add(cdata.tx_adapter_id, i,
 326                                 -1);
 327                 if (ret)
 328                         rte_exit(EXIT_FAILURE,
 329                                         "Failed to add queues to Tx adapter");
 330         }
 331
 332         ret = rte_event_eth_tx_adapter_event_port_get(cdata.tx_adapter_id,
 333                         &tx_port_id);
 334         if (ret)
 335                 rte_exit(EXIT_FAILURE,
 336                                 "Failed to get Tx adapter port id");
 337         ret = rte_event_port_link(evdev_id, tx_port_id, &cdata.tx_queue_id,
 338                         NULL, 1);
 339         if (ret != 1)
 340                 rte_exit(EXIT_FAILURE,
 341                                 "Unable to link Tx adapter port to Tx queue");
 342
 343         ret = rte_event_eth_rx_adapter_service_id_get(cdata.rx_adapter_id,
 344                                 &fdata->rxadptr_service_id);
 345         if (ret != -ESRCH && ret != 0) {
 346                 rte_exit(EXIT_FAILURE,
 347                         "Error getting the service ID for Rx adapter\n");
 348         }
 349         rte_service_runstate_set(fdata->rxadptr_service_id, 1);
 350         rte_service_set_runstate_mapped_check(fdata->rxadptr_service_id, 0);
 351
 352         ret = rte_event_eth_tx_adapter_service_id_get(cdata.tx_adapter_id,
 353                                 &fdata->txadptr_service_id);
 354         if (ret != -ESRCH && ret != 0) {
 355                 rte_exit(EXIT_FAILURE,
 356                         "Error getting the service ID for Tx adapter\n");
 357         }
 358         rte_service_runstate_set(fdata->txadptr_service_id, 1);
 359         rte_service_set_runstate_mapped_check(fdata->txadptr_service_id, 0);
 360
 361         ret = rte_event_eth_rx_adapter_start(cdata.rx_adapter_id);
 362         if (ret)
 363                 rte_exit(EXIT_FAILURE, "Rx adapter[%d] start failed",
 364                                 cdata.rx_adapter_id);
 365
 366         ret = rte_event_eth_tx_adapter_start(cdata.tx_adapter_id);
 367         if (ret)
 368                 rte_exit(EXIT_FAILURE, "Tx adapter[%d] start failed",
 369                                 cdata.tx_adapter_id);
 370
 371         if (rte_event_dev_start(evdev_id) < 0)
 372                 rte_exit(EXIT_FAILURE, "Error starting eventdev");
 373 }
 374
 375 static void
 376 generic_opt_check(void)
 377 {
 378         int i;
 379         int ret;
 380         uint32_t cap = 0;
 381         uint8_t rx_needed = 0;
 382         uint8_t sched_needed = 0;
 383         struct rte_event_dev_info eventdev_info;
 384
 385         memset(&eventdev_info, 0, sizeof(struct rte_event_dev_info));
 386         rte_event_dev_info_get(0, &eventdev_info);
 387
 388         if (cdata.all_type_queues && !(eventdev_info.event_dev_cap &
 389                                 RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES))
 390                 rte_exit(EXIT_FAILURE,
 391                                 "Event dev doesn't support all type queues\n");
 392         sched_needed = !(eventdev_info.event_dev_cap &
 393                 RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED);
 394
 395         RTE_ETH_FOREACH_DEV(i) {
 396                 ret = rte_event_eth_rx_adapter_caps_get(0, i, &cap);
 397                 if (ret)
 398                         rte_exit(EXIT_FAILURE,
 399                                 "failed to get event rx adapter capabilities");
 400                 rx_needed |=
 401                         !(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT);
 402         }
 403
 404         if (cdata.worker_lcore_mask == 0 ||
 405                         (rx_needed && cdata.rx_lcore_mask == 0) ||
 406                         (cdata.tx_lcore_mask == 0) ||
 407                         (sched_needed && cdata.sched_lcore_mask == 0)) {
 408                 printf("Core part of pipeline was not assigned any cores. "
 409                         "This will stall the pipeline, please check core masks "
 410                         "(use -h for details on setting core masks):\n"
 411                         "\trx: %"PRIu64"\n\ttx: %"PRIu64"\n\tsched: %"PRIu64
 412                         "\n\tworkers: %"PRIu64"\n",
 413                         cdata.rx_lcore_mask, cdata.tx_lcore_mask,
 414                         cdata.sched_lcore_mask,
 415                         cdata.worker_lcore_mask);
 416                 rte_exit(-1, "Fix core masks\n");
 417         }
 418
 419         if (!sched_needed)
 420                 memset(fdata->sched_core, 0,
 421                                 sizeof(unsigned int) * MAX_NUM_CORE);
 422         if (!rx_needed)
 423                 memset(fdata->rx_core, 0,
 424                                 sizeof(unsigned int) * MAX_NUM_CORE);
 425 }
 426
 427 void
 428 set_worker_generic_setup_data(struct setup_data *caps, bool burst)
 429 {
 430         if (burst) {
 431                 caps->worker = worker_generic_burst;
 432         } else {
 433                 caps->worker = worker_generic;
 434         }
 435
 436         caps->adptr_setup = init_adapters;
 437         caps->scheduler = schedule_devices;
 438         caps->evdev_setup = setup_eventdev_generic;
 439         caps->check_opt = generic_opt_check;
 440 }