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