drivers/event/dpaa/dpaa_eventdev.c

   1 /*   SPDX-License-Identifier:        BSD-3-Clause
   2  *   Copyright 2017 NXP
   3  */
   4
   5 #include <assert.h>
   6 #include <stdio.h>
   7 #include <stdbool.h>
   8 #include <errno.h>
   9 #include <stdint.h>
  10 #include <string.h>
  11 #include <sys/epoll.h>
  12
  13 #include <rte_atomic.h>
  14 #include <rte_byteorder.h>
  15 #include <rte_common.h>
  16 #include <rte_debug.h>
  17 #include <rte_dev.h>
  18 #include <rte_eal.h>
  19 #include <rte_lcore.h>
  20 #include <rte_log.h>
  21 #include <rte_malloc.h>
  22 #include <rte_memcpy.h>
  23 #include <rte_memory.h>
  24 #include <rte_memzone.h>
  25 #include <rte_pci.h>
  26 #include <rte_eventdev.h>
  27 #include <rte_eventdev_pmd_vdev.h>
  28 #include <rte_ethdev.h>
  29 #include <rte_event_eth_rx_adapter.h>
  30 #include <rte_dpaa_bus.h>
  31 #include <rte_dpaa_logs.h>
  32 #include <rte_cycles_64.h>
  33
  34 #include <dpaa_ethdev.h>
  35 #include "dpaa_eventdev.h"
  36 #include <dpaa_mempool.h>
  37
  38 /*
  39  * Clarifications
  40  * Evendev = Virtual Instance for SoC
  41  * Eventport = Portal Instance
  42  * Eventqueue = Channel Instance
  43  * 1 Eventdev can have N Eventqueue
  44  */
  45
  46 static int
  47 dpaa_event_dequeue_timeout_ticks(struct rte_eventdev *dev, uint64_t ns,
  48                                  uint64_t *timeout_ticks)
  49 {
  50         uint64_t cycles_per_second;
  51
  52         EVENTDEV_DRV_FUNC_TRACE();
  53
  54         RTE_SET_USED(dev);
  55
  56         cycles_per_second = rte_get_timer_hz();
  57         *timeout_ticks = ns * (cycles_per_second / NS_PER_S);
  58
  59         return 0;
  60 }
  61
  62 static void
  63 dpaa_eventq_portal_add(u16 ch_id)
  64 {
  65         uint32_t sdqcr;
  66
  67         sdqcr = QM_SDQCR_CHANNELS_POOL_CONV(ch_id);
  68         qman_static_dequeue_add(sdqcr, NULL);
  69 }
  70
  71 static uint16_t
  72 dpaa_event_enqueue_burst(void *port, const struct rte_event ev[],
  73                          uint16_t nb_events)
  74 {
  75         uint16_t i;
  76         struct rte_mbuf *mbuf;
  77
  78         RTE_SET_USED(port);
  79         /*Release all the contexts saved previously*/
  80         for (i = 0; i < nb_events; i++) {
  81                 switch (ev[i].op) {
  82                 case RTE_EVENT_OP_RELEASE:
  83                         qman_dca_index(ev[i].impl_opaque, 0);
  84                         mbuf = DPAA_PER_LCORE_DQRR_MBUF(i);
  85                         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
  86                         DPAA_PER_LCORE_DQRR_HELD &= ~(1 << i);
  87                         DPAA_PER_LCORE_DQRR_SIZE--;
  88                         break;
  89                 default:
  90                         break;
  91                 }
  92         }
  93
  94         return nb_events;
  95 }
  96
  97 static uint16_t
  98 dpaa_event_enqueue(void *port, const struct rte_event *ev)
  99 {
 100         return dpaa_event_enqueue_burst(port, ev, 1);
 101 }
 102
 103 static uint16_t
 104 dpaa_event_dequeue_burst(void *port, struct rte_event ev[],
 105                          uint16_t nb_events, uint64_t timeout_ticks)
 106 {
 107         int ret;
 108         u16 ch_id;
 109         void *buffers[8];
 110         u32 num_frames, i;
 111         uint64_t wait_time, cur_ticks, start_ticks;
 112         struct dpaa_port *portal = (struct dpaa_port *)port;
 113         struct rte_mbuf *mbuf;
 114
 115         if (unlikely(!RTE_PER_LCORE(dpaa_io))) {
 116                 /* Affine current thread context to a qman portal */
 117                 ret = rte_dpaa_portal_init((void *)0);
 118                 if (ret) {
 119                         DPAA_EVENTDEV_ERR("Unable to initialize portal");
 120                         return ret;
 121                 }
 122         }
 123
 124         if (unlikely(!portal->is_port_linked)) {
 125                 /*
 126                  * Affine event queue for current thread context
 127                  * to a qman portal.
 128                  */
 129                 for (i = 0; i < portal->num_linked_evq; i++) {
 130                         ch_id = portal->evq_info[i].ch_id;
 131                         dpaa_eventq_portal_add(ch_id);
 132                 }
 133                 portal->is_port_linked = true;
 134         }
 135
 136         /* Check if there are atomic contexts to be released */
 137         i = 0;
 138         while (DPAA_PER_LCORE_DQRR_SIZE) {
 139                 if (DPAA_PER_LCORE_DQRR_HELD & (1 << i)) {
 140                         qman_dca_index(i, 0);
 141                         mbuf = DPAA_PER_LCORE_DQRR_MBUF(i);
 142                         mbuf->seqn = DPAA_INVALID_MBUF_SEQN;
 143                         DPAA_PER_LCORE_DQRR_HELD &= ~(1 << i);
 144                         DPAA_PER_LCORE_DQRR_SIZE--;
 145                 }
 146                 i++;
 147         }
 148         DPAA_PER_LCORE_DQRR_HELD = 0;
 149
 150         if (portal->timeout == DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_INVALID)
 151                 wait_time = timeout_ticks;
 152         else
 153                 wait_time = portal->timeout;
 154
 155         /* Lets dequeue the frames */
 156         start_ticks = rte_get_timer_cycles();
 157         wait_time += start_ticks;
 158         do {
 159                 num_frames = qman_portal_dequeue(ev, nb_events, buffers);
 160                 if (num_frames != 0)
 161                         break;
 162                 cur_ticks = rte_get_timer_cycles();
 163         } while (cur_ticks < wait_time);
 164
 165         return num_frames;
 166 }
 167
 168 static uint16_t
 169 dpaa_event_dequeue(void *port, struct rte_event *ev, uint64_t timeout_ticks)
 170 {
 171         return dpaa_event_dequeue_burst(port, ev, 1, timeout_ticks);
 172 }
 173
 174 static void
 175 dpaa_event_dev_info_get(struct rte_eventdev *dev,
 176                         struct rte_event_dev_info *dev_info)
 177 {
 178         EVENTDEV_DRV_FUNC_TRACE();
 179
 180         RTE_SET_USED(dev);
 181         dev_info->driver_name = "event_dpaa";
 182         dev_info->min_dequeue_timeout_ns =
 183                 DPAA_EVENT_MIN_DEQUEUE_TIMEOUT;
 184         dev_info->max_dequeue_timeout_ns =
 185                 DPAA_EVENT_MAX_DEQUEUE_TIMEOUT;
 186         dev_info->dequeue_timeout_ns =
 187                 DPAA_EVENT_MIN_DEQUEUE_TIMEOUT;
 188         dev_info->max_event_queues =
 189                 DPAA_EVENT_MAX_QUEUES;
 190         dev_info->max_event_queue_flows =
 191                 DPAA_EVENT_MAX_QUEUE_FLOWS;
 192         dev_info->max_event_queue_priority_levels =
 193                 DPAA_EVENT_MAX_QUEUE_PRIORITY_LEVELS;
 194         dev_info->max_event_priority_levels =
 195                 DPAA_EVENT_MAX_EVENT_PRIORITY_LEVELS;
 196         dev_info->max_event_ports =
 197                 DPAA_EVENT_MAX_EVENT_PORT;
 198         dev_info->max_event_port_dequeue_depth =
 199                 DPAA_EVENT_MAX_PORT_DEQUEUE_DEPTH;
 200         dev_info->max_event_port_enqueue_depth =
 201                 DPAA_EVENT_MAX_PORT_ENQUEUE_DEPTH;
 202         /*
 203          * TODO: Need to find out that how to fetch this info
 204          * from kernel or somewhere else.
 205          */
 206         dev_info->max_num_events =
 207                 DPAA_EVENT_MAX_NUM_EVENTS;
 208         dev_info->event_dev_cap =
 209                 RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED |
 210                 RTE_EVENT_DEV_CAP_BURST_MODE |
 211                 RTE_EVENT_DEV_CAP_MULTIPLE_QUEUE_PORT |
 212                 RTE_EVENT_DEV_CAP_NONSEQ_MODE;
 213 }
 214
 215 static int
 216 dpaa_event_dev_configure(const struct rte_eventdev *dev)
 217 {
 218         struct dpaa_eventdev *priv = dev->data->dev_private;
 219         struct rte_event_dev_config *conf = &dev->data->dev_conf;
 220         int ret, i;
 221         uint32_t *ch_id;
 222
 223         EVENTDEV_DRV_FUNC_TRACE();
 224
 225         priv->dequeue_timeout_ns = conf->dequeue_timeout_ns;
 226         priv->nb_events_limit = conf->nb_events_limit;
 227         priv->nb_event_queues = conf->nb_event_queues;
 228         priv->nb_event_ports = conf->nb_event_ports;
 229         priv->nb_event_queue_flows = conf->nb_event_queue_flows;
 230         priv->nb_event_port_dequeue_depth = conf->nb_event_port_dequeue_depth;
 231         priv->nb_event_port_enqueue_depth = conf->nb_event_port_enqueue_depth;
 232         priv->event_dev_cfg = conf->event_dev_cfg;
 233
 234         /* Check dequeue timeout method is per dequeue or global */
 235         if (priv->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) {
 236                 /*
 237                  * Use timeout value as given in dequeue operation.
 238                  * So invalidating this timetout value.
 239                  */
 240                 priv->dequeue_timeout_ns = 0;
 241         }
 242
 243         ch_id = rte_malloc("dpaa-channels",
 244                           sizeof(uint32_t) * priv->nb_event_queues,
 245                           RTE_CACHE_LINE_SIZE);
 246         if (ch_id == NULL) {
 247                 EVENTDEV_DRV_ERR("Fail to allocate memory for dpaa channels\n");
 248                 return -ENOMEM;
 249         }
 250         /* Create requested event queues within the given event device */
 251         ret = qman_alloc_pool_range(ch_id, priv->nb_event_queues, 1, 0);
 252         if (ret < 0) {
 253                 EVENTDEV_DRV_ERR("Failed to create internal channel\n");
 254                 rte_free(ch_id);
 255                 return ret;
 256         }
 257         for (i = 0; i < priv->nb_event_queues; i++)
 258                 priv->evq_info[i].ch_id = (u16)ch_id[i];
 259
 260         /* Lets prepare event ports */
 261         memset(&priv->ports[0], 0,
 262               sizeof(struct dpaa_port) * priv->nb_event_ports);
 263         if (priv->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) {
 264                 for (i = 0; i < priv->nb_event_ports; i++) {
 265                         priv->ports[i].timeout =
 266                                 DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_INVALID;
 267                 }
 268         } else if (priv->dequeue_timeout_ns == 0) {
 269                 for (i = 0; i < priv->nb_event_ports; i++) {
 270                         dpaa_event_dequeue_timeout_ticks(NULL,
 271                                 DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_NS,
 272                                 &priv->ports[i].timeout);
 273                 }
 274         } else {
 275                 for (i = 0; i < priv->nb_event_ports; i++) {
 276                         dpaa_event_dequeue_timeout_ticks(NULL,
 277                                 priv->dequeue_timeout_ns,
 278                                 &priv->ports[i].timeout);
 279                 }
 280         }
 281         /*
 282          * TODO: Currently portals are affined with threads. Maximum threads
 283          * can be created equals to number of lcore.
 284          */
 285         rte_free(ch_id);
 286         EVENTDEV_DRV_LOG("Configured eventdev devid=%d", dev->data->dev_id);
 287
 288         return 0;
 289 }
 290
 291 static int
 292 dpaa_event_dev_start(struct rte_eventdev *dev)
 293 {
 294         EVENTDEV_DRV_FUNC_TRACE();
 295         RTE_SET_USED(dev);
 296
 297         return 0;
 298 }
 299
 300 static void
 301 dpaa_event_dev_stop(struct rte_eventdev *dev)
 302 {
 303         EVENTDEV_DRV_FUNC_TRACE();
 304         RTE_SET_USED(dev);
 305 }
 306
 307 static int
 308 dpaa_event_dev_close(struct rte_eventdev *dev)
 309 {
 310         EVENTDEV_DRV_FUNC_TRACE();
 311         RTE_SET_USED(dev);
 312
 313         return 0;
 314 }
 315
 316 static void
 317 dpaa_event_queue_def_conf(struct rte_eventdev *dev, uint8_t queue_id,
 318                           struct rte_event_queue_conf *queue_conf)
 319 {
 320         EVENTDEV_DRV_FUNC_TRACE();
 321
 322         RTE_SET_USED(dev);
 323         RTE_SET_USED(queue_id);
 324
 325         memset(queue_conf, 0, sizeof(struct rte_event_queue_conf));
 326         queue_conf->schedule_type = RTE_SCHED_TYPE_PARALLEL;
 327         queue_conf->priority = RTE_EVENT_DEV_PRIORITY_HIGHEST;
 328 }
 329
 330 static int
 331 dpaa_event_queue_setup(struct rte_eventdev *dev, uint8_t queue_id,
 332                        const struct rte_event_queue_conf *queue_conf)
 333 {
 334         struct dpaa_eventdev *priv = dev->data->dev_private;
 335         struct dpaa_eventq *evq_info = &priv->evq_info[queue_id];
 336
 337         EVENTDEV_DRV_FUNC_TRACE();
 338
 339         switch (queue_conf->schedule_type) {
 340         case RTE_SCHED_TYPE_PARALLEL:
 341         case RTE_SCHED_TYPE_ATOMIC:
 342                 break;
 343         case RTE_SCHED_TYPE_ORDERED:
 344                 EVENTDEV_DRV_ERR("Schedule type is not supported.");
 345                 return -1;
 346         }
 347         evq_info->event_queue_cfg = queue_conf->event_queue_cfg;
 348         evq_info->event_queue_id = queue_id;
 349
 350         return 0;
 351 }
 352
 353 static void
 354 dpaa_event_queue_release(struct rte_eventdev *dev, uint8_t queue_id)
 355 {
 356         EVENTDEV_DRV_FUNC_TRACE();
 357
 358         RTE_SET_USED(dev);
 359         RTE_SET_USED(queue_id);
 360 }
 361
 362 static void
 363 dpaa_event_port_default_conf_get(struct rte_eventdev *dev, uint8_t port_id,
 364                                  struct rte_event_port_conf *port_conf)
 365 {
 366         EVENTDEV_DRV_FUNC_TRACE();
 367
 368         RTE_SET_USED(dev);
 369         RTE_SET_USED(port_id);
 370
 371         port_conf->new_event_threshold = DPAA_EVENT_MAX_NUM_EVENTS;
 372         port_conf->dequeue_depth = DPAA_EVENT_MAX_PORT_DEQUEUE_DEPTH;
 373         port_conf->enqueue_depth = DPAA_EVENT_MAX_PORT_ENQUEUE_DEPTH;
 374 }
 375
 376 static int
 377 dpaa_event_port_setup(struct rte_eventdev *dev, uint8_t port_id,
 378                       const struct rte_event_port_conf *port_conf)
 379 {
 380         struct dpaa_eventdev *eventdev = dev->data->dev_private;
 381
 382         EVENTDEV_DRV_FUNC_TRACE();
 383
 384         RTE_SET_USED(port_conf);
 385         dev->data->ports[port_id] = &eventdev->ports[port_id];
 386
 387         return 0;
 388 }
 389
 390 static void
 391 dpaa_event_port_release(void *port)
 392 {
 393         EVENTDEV_DRV_FUNC_TRACE();
 394
 395         RTE_SET_USED(port);
 396 }
 397
 398 static int
 399 dpaa_event_port_link(struct rte_eventdev *dev, void *port,
 400                      const uint8_t queues[], const uint8_t priorities[],
 401                      uint16_t nb_links)
 402 {
 403         struct dpaa_eventdev *priv = dev->data->dev_private;
 404         struct dpaa_port *event_port = (struct dpaa_port *)port;
 405         struct dpaa_eventq *event_queue;
 406         uint8_t eventq_id;
 407         int i;
 408
 409         RTE_SET_USED(dev);
 410         RTE_SET_USED(priorities);
 411
 412         /* First check that input configuration are valid */
 413         for (i = 0; i < nb_links; i++) {
 414                 eventq_id = queues[i];
 415                 event_queue = &priv->evq_info[eventq_id];
 416                 if ((event_queue->event_queue_cfg
 417                         & RTE_EVENT_QUEUE_CFG_SINGLE_LINK)
 418                         && (event_queue->event_port)) {
 419                         return -EINVAL;
 420                 }
 421         }
 422
 423         for (i = 0; i < nb_links; i++) {
 424                 eventq_id = queues[i];
 425                 event_queue = &priv->evq_info[eventq_id];
 426                 event_port->evq_info[i].event_queue_id = eventq_id;
 427                 event_port->evq_info[i].ch_id = event_queue->ch_id;
 428                 event_queue->event_port = port;
 429         }
 430
 431         event_port->num_linked_evq = event_port->num_linked_evq + i;
 432
 433         return (int)i;
 434 }
 435
 436 static int
 437 dpaa_event_port_unlink(struct rte_eventdev *dev, void *port,
 438                        uint8_t queues[], uint16_t nb_links)
 439 {
 440         int i;
 441         uint8_t eventq_id;
 442         struct dpaa_eventq *event_queue;
 443         struct dpaa_eventdev *priv = dev->data->dev_private;
 444         struct dpaa_port *event_port = (struct dpaa_port *)port;
 445
 446         if (!event_port->num_linked_evq)
 447                 return nb_links;
 448
 449         for (i = 0; i < nb_links; i++) {
 450                 eventq_id = queues[i];
 451                 event_port->evq_info[eventq_id].event_queue_id = -1;
 452                 event_port->evq_info[eventq_id].ch_id = 0;
 453                 event_queue = &priv->evq_info[eventq_id];
 454                 event_queue->event_port = NULL;
 455         }
 456
 457         event_port->num_linked_evq = event_port->num_linked_evq - i;
 458
 459         return (int)i;
 460 }
 461
 462 static int
 463 dpaa_event_eth_rx_adapter_caps_get(const struct rte_eventdev *dev,
 464                                    const struct rte_eth_dev *eth_dev,
 465                                    uint32_t *caps)
 466 {
 467         const char *ethdev_driver = eth_dev->device->driver->name;
 468
 469         EVENTDEV_DRV_FUNC_TRACE();
 470
 471         RTE_SET_USED(dev);
 472
 473         if (!strcmp(ethdev_driver, "net_dpaa"))
 474                 *caps = RTE_EVENT_ETH_RX_ADAPTER_DPAA_CAP;
 475         else
 476                 *caps = RTE_EVENT_ETH_RX_ADAPTER_SW_CAP;
 477
 478         return 0;
 479 }
 480
 481 static int
 482 dpaa_event_eth_rx_adapter_queue_add(
 483                 const struct rte_eventdev *dev,
 484                 const struct rte_eth_dev *eth_dev,
 485                 int32_t rx_queue_id,
 486                 const struct rte_event_eth_rx_adapter_queue_conf *queue_conf)
 487 {
 488         struct dpaa_eventdev *eventdev = dev->data->dev_private;
 489         uint8_t ev_qid = queue_conf->ev.queue_id;
 490         u16 ch_id = eventdev->evq_info[ev_qid].ch_id;
 491         struct dpaa_if *dpaa_intf = eth_dev->data->dev_private;
 492         int ret, i;
 493
 494         EVENTDEV_DRV_FUNC_TRACE();
 495
 496         if (rx_queue_id == -1) {
 497                 for (i = 0; i < dpaa_intf->nb_rx_queues; i++) {
 498                         ret = dpaa_eth_eventq_attach(eth_dev, i, ch_id,
 499                                                      queue_conf);
 500                         if (ret) {
 501                                 EVENTDEV_DRV_ERR(
 502                                         "Event Queue attach failed:%d\n", ret);
 503                                 goto detach_configured_queues;
 504                         }
 505                 }
 506                 return 0;
 507         }
 508
 509         ret = dpaa_eth_eventq_attach(eth_dev, rx_queue_id, ch_id, queue_conf);
 510         if (ret)
 511                 EVENTDEV_DRV_ERR("dpaa_eth_eventq_attach failed:%d\n", ret);
 512         return ret;
 513
 514 detach_configured_queues:
 515
 516         for (i = (i - 1); i >= 0 ; i--)
 517                 dpaa_eth_eventq_detach(eth_dev, i);
 518
 519         return ret;
 520 }
 521
 522 static int
 523 dpaa_event_eth_rx_adapter_queue_del(const struct rte_eventdev *dev,
 524                                     const struct rte_eth_dev *eth_dev,
 525                                     int32_t rx_queue_id)
 526 {
 527         int ret, i;
 528         struct dpaa_if *dpaa_intf = eth_dev->data->dev_private;
 529
 530         EVENTDEV_DRV_FUNC_TRACE();
 531
 532         RTE_SET_USED(dev);
 533         if (rx_queue_id == -1) {
 534                 for (i = 0; i < dpaa_intf->nb_rx_queues; i++) {
 535                         ret = dpaa_eth_eventq_detach(eth_dev, i);
 536                         if (ret)
 537                                 EVENTDEV_DRV_ERR(
 538                                         "Event Queue detach failed:%d\n", ret);
 539                 }
 540
 541                 return 0;
 542         }
 543
 544         ret = dpaa_eth_eventq_detach(eth_dev, rx_queue_id);
 545         if (ret)
 546                 EVENTDEV_DRV_ERR("dpaa_eth_eventq_detach failed:%d\n", ret);
 547         return ret;
 548 }
 549
 550 static int
 551 dpaa_event_eth_rx_adapter_start(const struct rte_eventdev *dev,
 552                                 const struct rte_eth_dev *eth_dev)
 553 {
 554         EVENTDEV_DRV_FUNC_TRACE();
 555
 556         RTE_SET_USED(dev);
 557         RTE_SET_USED(eth_dev);
 558
 559         return 0;
 560 }
 561
 562 static int
 563 dpaa_event_eth_rx_adapter_stop(const struct rte_eventdev *dev,
 564                                const struct rte_eth_dev *eth_dev)
 565 {
 566         EVENTDEV_DRV_FUNC_TRACE();
 567
 568         RTE_SET_USED(dev);
 569         RTE_SET_USED(eth_dev);
 570
 571         return 0;
 572 }
 573
 574 static const struct rte_eventdev_ops dpaa_eventdev_ops = {
 575         .dev_infos_get    = dpaa_event_dev_info_get,
 576         .dev_configure    = dpaa_event_dev_configure,
 577         .dev_start        = dpaa_event_dev_start,
 578         .dev_stop         = dpaa_event_dev_stop,
 579         .dev_close        = dpaa_event_dev_close,
 580         .queue_def_conf   = dpaa_event_queue_def_conf,
 581         .queue_setup      = dpaa_event_queue_setup,
 582         .queue_release    = dpaa_event_queue_release,
 583         .port_def_conf    = dpaa_event_port_default_conf_get,
 584         .port_setup       = dpaa_event_port_setup,
 585         .port_release       = dpaa_event_port_release,
 586         .port_link        = dpaa_event_port_link,
 587         .port_unlink      = dpaa_event_port_unlink,
 588         .timeout_ticks    = dpaa_event_dequeue_timeout_ticks,
 589         .eth_rx_adapter_caps_get = dpaa_event_eth_rx_adapter_caps_get,
 590         .eth_rx_adapter_queue_add = dpaa_event_eth_rx_adapter_queue_add,
 591         .eth_rx_adapter_queue_del = dpaa_event_eth_rx_adapter_queue_del,
 592         .eth_rx_adapter_start = dpaa_event_eth_rx_adapter_start,
 593         .eth_rx_adapter_stop = dpaa_event_eth_rx_adapter_stop,
 594 };
 595
 596 static int
 597 dpaa_event_dev_create(const char *name)
 598 {
 599         struct rte_eventdev *eventdev;
 600         struct dpaa_eventdev *priv;
 601
 602         eventdev = rte_event_pmd_vdev_init(name,
 603                                            sizeof(struct dpaa_eventdev),
 604                                            rte_socket_id());
 605         if (eventdev == NULL) {
 606                 EVENTDEV_DRV_ERR("Failed to create eventdev vdev %s", name);
 607                 goto fail;
 608         }
 609
 610         eventdev->dev_ops       = &dpaa_eventdev_ops;
 611         eventdev->enqueue       = dpaa_event_enqueue;
 612         eventdev->enqueue_burst = dpaa_event_enqueue_burst;
 613         eventdev->dequeue       = dpaa_event_dequeue;
 614         eventdev->dequeue_burst = dpaa_event_dequeue_burst;
 615
 616         /* For secondary processes, the primary has done all the work */
 617         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 618                 return 0;
 619
 620         priv = eventdev->data->dev_private;
 621         priv->max_event_queues = DPAA_EVENT_MAX_QUEUES;
 622
 623         return 0;
 624 fail:
 625         return -EFAULT;
 626 }
 627
 628 static int
 629 dpaa_event_dev_probe(struct rte_vdev_device *vdev)
 630 {
 631         const char *name;
 632
 633         name = rte_vdev_device_name(vdev);
 634         EVENTDEV_DRV_LOG("Initializing %s", name);
 635
 636         return dpaa_event_dev_create(name);
 637 }
 638
 639 static int
 640 dpaa_event_dev_remove(struct rte_vdev_device *vdev)
 641 {
 642         const char *name;
 643
 644         name = rte_vdev_device_name(vdev);
 645         EVENTDEV_DRV_LOG("Closing %s", name);
 646
 647         return rte_event_pmd_vdev_uninit(name);
 648 }
 649
 650 static struct rte_vdev_driver vdev_eventdev_dpaa_pmd = {
 651         .probe = dpaa_event_dev_probe,
 652         .remove = dpaa_event_dev_remove
 653 };
 654
 655 RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_DPAA_PMD, vdev_eventdev_dpaa_pmd);