lib/librte_eventdev/rte_eventdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016 Cavium, Inc
   3  */
   4
   5 #include <ctype.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <stdarg.h>
  10 #include <errno.h>
  11 #include <stdint.h>
  12 #include <inttypes.h>
  13 #include <sys/types.h>
  14 #include <sys/queue.h>
  15
  16 #include <rte_byteorder.h>
  17 #include <rte_log.h>
  18 #include <rte_debug.h>
  19 #include <rte_dev.h>
  20 #include <rte_memory.h>
  21 #include <rte_memcpy.h>
  22 #include <rte_memzone.h>
  23 #include <rte_eal.h>
  24 #include <rte_per_lcore.h>
  25 #include <rte_lcore.h>
  26 #include <rte_atomic.h>
  27 #include <rte_branch_prediction.h>
  28 #include <rte_common.h>
  29 #include <rte_malloc.h>
  30 #include <rte_errno.h>
  31 #include <rte_ethdev.h>
  32 #include <rte_cryptodev.h>
  33 #include <rte_cryptodev_pmd.h>
  34
  35 #include "rte_eventdev.h"
  36 #include "rte_eventdev_pmd.h"
  37
  38 struct rte_eventdev rte_event_devices[RTE_EVENT_MAX_DEVS];
  39
  40 struct rte_eventdev *rte_eventdevs = &rte_event_devices[0];
  41
  42 static struct rte_eventdev_global eventdev_globals = {
  43         .nb_devs                = 0
  44 };
  45
  46 struct rte_eventdev_global *rte_eventdev_globals = &eventdev_globals;
  47
  48 /* Event dev north bound API implementation */
  49
  50 uint8_t
  51 rte_event_dev_count(void)
  52 {
  53         return rte_eventdev_globals->nb_devs;
  54 }
  55
  56 int
  57 rte_event_dev_get_dev_id(const char *name)
  58 {
  59         int i;
  60
  61         if (!name)
  62                 return -EINVAL;
  63
  64         for (i = 0; i < rte_eventdev_globals->nb_devs; i++)
  65                 if ((strcmp(rte_event_devices[i].data->name, name)
  66                                 == 0) &&
  67                                 (rte_event_devices[i].attached ==
  68                                                 RTE_EVENTDEV_ATTACHED))
  69                         return i;
  70         return -ENODEV;
  71 }
  72
  73 int
  74 rte_event_dev_socket_id(uint8_t dev_id)
  75 {
  76         struct rte_eventdev *dev;
  77
  78         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
  79         dev = &rte_eventdevs[dev_id];
  80
  81         return dev->data->socket_id;
  82 }
  83
  84 int
  85 rte_event_dev_info_get(uint8_t dev_id, struct rte_event_dev_info *dev_info)
  86 {
  87         struct rte_eventdev *dev;
  88
  89         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
  90         dev = &rte_eventdevs[dev_id];
  91
  92         if (dev_info == NULL)
  93                 return -EINVAL;
  94
  95         memset(dev_info, 0, sizeof(struct rte_event_dev_info));
  96
  97         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
  98         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
  99
 100         dev_info->dequeue_timeout_ns = dev->data->dev_conf.dequeue_timeout_ns;
 101
 102         dev_info->dev = dev->dev;
 103         return 0;
 104 }
 105
 106 int
 107 rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint8_t eth_port_id,
 108                                 uint32_t *caps)
 109 {
 110         struct rte_eventdev *dev;
 111
 112         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 113         RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_port_id, -EINVAL);
 114
 115         dev = &rte_eventdevs[dev_id];
 116
 117         if (caps == NULL)
 118                 return -EINVAL;
 119         *caps = 0;
 120
 121         return dev->dev_ops->eth_rx_adapter_caps_get ?
 122                                 (*dev->dev_ops->eth_rx_adapter_caps_get)(dev,
 123                                                 &rte_eth_devices[eth_port_id],
 124                                                 caps)
 125                                 : 0;
 126 }
 127
 128 int __rte_experimental
 129 rte_event_timer_adapter_caps_get(uint8_t dev_id, uint32_t *caps)
 130 {
 131         struct rte_eventdev *dev;
 132         const struct rte_event_timer_adapter_ops *ops;
 133
 134         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 135
 136         dev = &rte_eventdevs[dev_id];
 137
 138         if (caps == NULL)
 139                 return -EINVAL;
 140         *caps = 0;
 141
 142         return dev->dev_ops->timer_adapter_caps_get ?
 143                                 (*dev->dev_ops->timer_adapter_caps_get)(dev,
 144                                                                         0,
 145                                                                         caps,
 146                                                                         &ops)
 147                                 : 0;
 148 }
 149
 150 int __rte_experimental
 151 rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
 152                                   uint32_t *caps)
 153 {
 154         struct rte_eventdev *dev;
 155         struct rte_cryptodev *cdev;
 156
 157         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 158         if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
 159                 return -EINVAL;
 160
 161         dev = &rte_eventdevs[dev_id];
 162         cdev = rte_cryptodev_pmd_get_dev(cdev_id);
 163
 164         if (caps == NULL)
 165                 return -EINVAL;
 166         *caps = 0;
 167
 168         return dev->dev_ops->crypto_adapter_caps_get ?
 169                 (*dev->dev_ops->crypto_adapter_caps_get)
 170                 (dev, cdev, caps) : -ENOTSUP;
 171 }
 172
 173 static inline int
 174 rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
 175 {
 176         uint8_t old_nb_queues = dev->data->nb_queues;
 177         struct rte_event_queue_conf *queues_cfg;
 178         unsigned int i;
 179
 180         RTE_EDEV_LOG_DEBUG("Setup %d queues on device %u", nb_queues,
 181                          dev->data->dev_id);
 182
 183         /* First time configuration */
 184         if (dev->data->queues_cfg == NULL && nb_queues != 0) {
 185                 /* Allocate memory to store queue configuration */
 186                 dev->data->queues_cfg = rte_zmalloc_socket(
 187                                 "eventdev->data->queues_cfg",
 188                                 sizeof(dev->data->queues_cfg[0]) * nb_queues,
 189                                 RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 190                 if (dev->data->queues_cfg == NULL) {
 191                         dev->data->nb_queues = 0;
 192                         RTE_EDEV_LOG_ERR("failed to get mem for queue cfg,"
 193                                         "nb_queues %u", nb_queues);
 194                         return -(ENOMEM);
 195                 }
 196         /* Re-configure */
 197         } else if (dev->data->queues_cfg != NULL && nb_queues != 0) {
 198                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP);
 199
 200                 for (i = nb_queues; i < old_nb_queues; i++)
 201                         (*dev->dev_ops->queue_release)(dev, i);
 202
 203                 /* Re allocate memory to store queue configuration */
 204                 queues_cfg = dev->data->queues_cfg;
 205                 queues_cfg = rte_realloc(queues_cfg,
 206                                 sizeof(queues_cfg[0]) * nb_queues,
 207                                 RTE_CACHE_LINE_SIZE);
 208                 if (queues_cfg == NULL) {
 209                         RTE_EDEV_LOG_ERR("failed to realloc queue cfg memory,"
 210                                                 " nb_queues %u", nb_queues);
 211                         return -(ENOMEM);
 212                 }
 213                 dev->data->queues_cfg = queues_cfg;
 214
 215                 if (nb_queues > old_nb_queues) {
 216                         uint8_t new_qs = nb_queues - old_nb_queues;
 217
 218                         memset(queues_cfg + old_nb_queues, 0,
 219                                 sizeof(queues_cfg[0]) * new_qs);
 220                 }
 221         } else if (dev->data->queues_cfg != NULL && nb_queues == 0) {
 222                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP);
 223
 224                 for (i = nb_queues; i < old_nb_queues; i++)
 225                         (*dev->dev_ops->queue_release)(dev, i);
 226         }
 227
 228         dev->data->nb_queues = nb_queues;
 229         return 0;
 230 }
 231
 232 #define EVENT_QUEUE_SERVICE_PRIORITY_INVALID (0xdead)
 233
 234 static inline int
 235 rte_event_dev_port_config(struct rte_eventdev *dev, uint8_t nb_ports)
 236 {
 237         uint8_t old_nb_ports = dev->data->nb_ports;
 238         void **ports;
 239         uint16_t *links_map;
 240         struct rte_event_port_conf *ports_cfg;
 241         unsigned int i;
 242
 243         RTE_EDEV_LOG_DEBUG("Setup %d ports on device %u", nb_ports,
 244                          dev->data->dev_id);
 245
 246         /* First time configuration */
 247         if (dev->data->ports == NULL && nb_ports != 0) {
 248                 dev->data->ports = rte_zmalloc_socket("eventdev->data->ports",
 249                                 sizeof(dev->data->ports[0]) * nb_ports,
 250                                 RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 251                 if (dev->data->ports == NULL) {
 252                         dev->data->nb_ports = 0;
 253                         RTE_EDEV_LOG_ERR("failed to get mem for port meta data,"
 254                                         "nb_ports %u", nb_ports);
 255                         return -(ENOMEM);
 256                 }
 257
 258                 /* Allocate memory to store port configurations */
 259                 dev->data->ports_cfg =
 260                         rte_zmalloc_socket("eventdev->ports_cfg",
 261                         sizeof(dev->data->ports_cfg[0]) * nb_ports,
 262                         RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 263                 if (dev->data->ports_cfg == NULL) {
 264                         dev->data->nb_ports = 0;
 265                         RTE_EDEV_LOG_ERR("failed to get mem for port cfg,"
 266                                         "nb_ports %u", nb_ports);
 267                         return -(ENOMEM);
 268                 }
 269
 270                 /* Allocate memory to store queue to port link connection */
 271                 dev->data->links_map =
 272                         rte_zmalloc_socket("eventdev->links_map",
 273                         sizeof(dev->data->links_map[0]) * nb_ports *
 274                         RTE_EVENT_MAX_QUEUES_PER_DEV,
 275                         RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 276                 if (dev->data->links_map == NULL) {
 277                         dev->data->nb_ports = 0;
 278                         RTE_EDEV_LOG_ERR("failed to get mem for port_map area,"
 279                                         "nb_ports %u", nb_ports);
 280                         return -(ENOMEM);
 281                 }
 282                 for (i = 0; i < nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV; i++)
 283                         dev->data->links_map[i] =
 284                                 EVENT_QUEUE_SERVICE_PRIORITY_INVALID;
 285         } else if (dev->data->ports != NULL && nb_ports != 0) {/* re-config */
 286                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_release, -ENOTSUP);
 287
 288                 ports = dev->data->ports;
 289                 ports_cfg = dev->data->ports_cfg;
 290                 links_map = dev->data->links_map;
 291
 292                 for (i = nb_ports; i < old_nb_ports; i++)
 293                         (*dev->dev_ops->port_release)(ports[i]);
 294
 295                 /* Realloc memory for ports */
 296                 ports = rte_realloc(ports, sizeof(ports[0]) * nb_ports,
 297                                 RTE_CACHE_LINE_SIZE);
 298                 if (ports == NULL) {
 299                         RTE_EDEV_LOG_ERR("failed to realloc port meta data,"
 300                                                 " nb_ports %u", nb_ports);
 301                         return -(ENOMEM);
 302                 }
 303
 304                 /* Realloc memory for ports_cfg */
 305                 ports_cfg = rte_realloc(ports_cfg,
 306                         sizeof(ports_cfg[0]) * nb_ports,
 307                         RTE_CACHE_LINE_SIZE);
 308                 if (ports_cfg == NULL) {
 309                         RTE_EDEV_LOG_ERR("failed to realloc port cfg mem,"
 310                                                 " nb_ports %u", nb_ports);
 311                         return -(ENOMEM);
 312                 }
 313
 314                 /* Realloc memory to store queue to port link connection */
 315                 links_map = rte_realloc(links_map,
 316                         sizeof(dev->data->links_map[0]) * nb_ports *
 317                         RTE_EVENT_MAX_QUEUES_PER_DEV,
 318                         RTE_CACHE_LINE_SIZE);
 319                 if (links_map == NULL) {
 320                         dev->data->nb_ports = 0;
 321                         RTE_EDEV_LOG_ERR("failed to realloc mem for port_map,"
 322                                         "nb_ports %u", nb_ports);
 323                         return -(ENOMEM);
 324                 }
 325
 326                 if (nb_ports > old_nb_ports) {
 327                         uint8_t new_ps = nb_ports - old_nb_ports;
 328                         unsigned int old_links_map_end =
 329                                 old_nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV;
 330                         unsigned int links_map_end =
 331                                 nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV;
 332
 333                         memset(ports + old_nb_ports, 0,
 334                                 sizeof(ports[0]) * new_ps);
 335                         memset(ports_cfg + old_nb_ports, 0,
 336                                 sizeof(ports_cfg[0]) * new_ps);
 337                         for (i = old_links_map_end; i < links_map_end; i++)
 338                                 links_map[i] =
 339                                         EVENT_QUEUE_SERVICE_PRIORITY_INVALID;
 340                 }
 341
 342                 dev->data->ports = ports;
 343                 dev->data->ports_cfg = ports_cfg;
 344                 dev->data->links_map = links_map;
 345         } else if (dev->data->ports != NULL && nb_ports == 0) {
 346                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_release, -ENOTSUP);
 347
 348                 ports = dev->data->ports;
 349                 for (i = nb_ports; i < old_nb_ports; i++)
 350                         (*dev->dev_ops->port_release)(ports[i]);
 351         }
 352
 353         dev->data->nb_ports = nb_ports;
 354         return 0;
 355 }
 356
 357 int
 358 rte_event_dev_configure(uint8_t dev_id,
 359                         const struct rte_event_dev_config *dev_conf)
 360 {
 361         struct rte_eventdev *dev;
 362         struct rte_event_dev_info info;
 363         int diag;
 364
 365         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 366         dev = &rte_eventdevs[dev_id];
 367
 368         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 369         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 370
 371         if (dev->data->dev_started) {
 372                 RTE_EDEV_LOG_ERR(
 373                     "device %d must be stopped to allow configuration", dev_id);
 374                 return -EBUSY;
 375         }
 376
 377         if (dev_conf == NULL)
 378                 return -EINVAL;
 379
 380         (*dev->dev_ops->dev_infos_get)(dev, &info);
 381
 382         /* Check dequeue_timeout_ns value is in limit */
 383         if (!(dev_conf->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT)) {
 384                 if (dev_conf->dequeue_timeout_ns &&
 385                     (dev_conf->dequeue_timeout_ns < info.min_dequeue_timeout_ns
 386                         || dev_conf->dequeue_timeout_ns >
 387                                  info.max_dequeue_timeout_ns)) {
 388                         RTE_EDEV_LOG_ERR("dev%d invalid dequeue_timeout_ns=%d"
 389                         " min_dequeue_timeout_ns=%d max_dequeue_timeout_ns=%d",
 390                         dev_id, dev_conf->dequeue_timeout_ns,
 391                         info.min_dequeue_timeout_ns,
 392                         info.max_dequeue_timeout_ns);
 393                         return -EINVAL;
 394                 }
 395         }
 396
 397         /* Check nb_events_limit is in limit */
 398         if (dev_conf->nb_events_limit > info.max_num_events) {
 399                 RTE_EDEV_LOG_ERR("dev%d nb_events_limit=%d > max_num_events=%d",
 400                 dev_id, dev_conf->nb_events_limit, info.max_num_events);
 401                 return -EINVAL;
 402         }
 403
 404         /* Check nb_event_queues is in limit */
 405         if (!dev_conf->nb_event_queues) {
 406                 RTE_EDEV_LOG_ERR("dev%d nb_event_queues cannot be zero",
 407                                         dev_id);
 408                 return -EINVAL;
 409         }
 410         if (dev_conf->nb_event_queues > info.max_event_queues) {
 411                 RTE_EDEV_LOG_ERR("%d nb_event_queues=%d > max_event_queues=%d",
 412                 dev_id, dev_conf->nb_event_queues, info.max_event_queues);
 413                 return -EINVAL;
 414         }
 415
 416         /* Check nb_event_ports is in limit */
 417         if (!dev_conf->nb_event_ports) {
 418                 RTE_EDEV_LOG_ERR("dev%d nb_event_ports cannot be zero", dev_id);
 419                 return -EINVAL;
 420         }
 421         if (dev_conf->nb_event_ports > info.max_event_ports) {
 422                 RTE_EDEV_LOG_ERR("id%d nb_event_ports=%d > max_event_ports= %d",
 423                 dev_id, dev_conf->nb_event_ports, info.max_event_ports);
 424                 return -EINVAL;
 425         }
 426
 427         /* Check nb_event_queue_flows is in limit */
 428         if (!dev_conf->nb_event_queue_flows) {
 429                 RTE_EDEV_LOG_ERR("dev%d nb_flows cannot be zero", dev_id);
 430                 return -EINVAL;
 431         }
 432         if (dev_conf->nb_event_queue_flows > info.max_event_queue_flows) {
 433                 RTE_EDEV_LOG_ERR("dev%d nb_flows=%x > max_flows=%x",
 434                 dev_id, dev_conf->nb_event_queue_flows,
 435                 info.max_event_queue_flows);
 436                 return -EINVAL;
 437         }
 438
 439         /* Check nb_event_port_dequeue_depth is in limit */
 440         if (!dev_conf->nb_event_port_dequeue_depth) {
 441                 RTE_EDEV_LOG_ERR("dev%d nb_dequeue_depth cannot be zero",
 442                                         dev_id);
 443                 return -EINVAL;
 444         }
 445         if ((info.event_dev_cap & RTE_EVENT_DEV_CAP_BURST_MODE) &&
 446                  (dev_conf->nb_event_port_dequeue_depth >
 447                          info.max_event_port_dequeue_depth)) {
 448                 RTE_EDEV_LOG_ERR("dev%d nb_dq_depth=%d > max_dq_depth=%d",
 449                 dev_id, dev_conf->nb_event_port_dequeue_depth,
 450                 info.max_event_port_dequeue_depth);
 451                 return -EINVAL;
 452         }
 453
 454         /* Check nb_event_port_enqueue_depth is in limit */
 455         if (!dev_conf->nb_event_port_enqueue_depth) {
 456                 RTE_EDEV_LOG_ERR("dev%d nb_enqueue_depth cannot be zero",
 457                                         dev_id);
 458                 return -EINVAL;
 459         }
 460         if ((info.event_dev_cap & RTE_EVENT_DEV_CAP_BURST_MODE) &&
 461                 (dev_conf->nb_event_port_enqueue_depth >
 462                          info.max_event_port_enqueue_depth)) {
 463                 RTE_EDEV_LOG_ERR("dev%d nb_enq_depth=%d > max_enq_depth=%d",
 464                 dev_id, dev_conf->nb_event_port_enqueue_depth,
 465                 info.max_event_port_enqueue_depth);
 466                 return -EINVAL;
 467         }
 468
 469         /* Copy the dev_conf parameter into the dev structure */
 470         memcpy(&dev->data->dev_conf, dev_conf, sizeof(dev->data->dev_conf));
 471
 472         /* Setup new number of queues and reconfigure device. */
 473         diag = rte_event_dev_queue_config(dev, dev_conf->nb_event_queues);
 474         if (diag != 0) {
 475                 RTE_EDEV_LOG_ERR("dev%d rte_event_dev_queue_config = %d",
 476                                 dev_id, diag);
 477                 return diag;
 478         }
 479
 480         /* Setup new number of ports and reconfigure device. */
 481         diag = rte_event_dev_port_config(dev, dev_conf->nb_event_ports);
 482         if (diag != 0) {
 483                 rte_event_dev_queue_config(dev, 0);
 484                 RTE_EDEV_LOG_ERR("dev%d rte_event_dev_port_config = %d",
 485                                 dev_id, diag);
 486                 return diag;
 487         }
 488
 489         /* Configure the device */
 490         diag = (*dev->dev_ops->dev_configure)(dev);
 491         if (diag != 0) {
 492                 RTE_EDEV_LOG_ERR("dev%d dev_configure = %d", dev_id, diag);
 493                 rte_event_dev_queue_config(dev, 0);
 494                 rte_event_dev_port_config(dev, 0);
 495         }
 496
 497         dev->data->event_dev_cap = info.event_dev_cap;
 498         return diag;
 499 }
 500
 501 static inline int
 502 is_valid_queue(struct rte_eventdev *dev, uint8_t queue_id)
 503 {
 504         if (queue_id < dev->data->nb_queues && queue_id <
 505                                 RTE_EVENT_MAX_QUEUES_PER_DEV)
 506                 return 1;
 507         else
 508                 return 0;
 509 }
 510
 511 int
 512 rte_event_queue_default_conf_get(uint8_t dev_id, uint8_t queue_id,
 513                                  struct rte_event_queue_conf *queue_conf)
 514 {
 515         struct rte_eventdev *dev;
 516
 517         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 518         dev = &rte_eventdevs[dev_id];
 519
 520         if (queue_conf == NULL)
 521                 return -EINVAL;
 522
 523         if (!is_valid_queue(dev, queue_id)) {
 524                 RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id);
 525                 return -EINVAL;
 526         }
 527
 528         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_def_conf, -ENOTSUP);
 529         memset(queue_conf, 0, sizeof(struct rte_event_queue_conf));
 530         (*dev->dev_ops->queue_def_conf)(dev, queue_id, queue_conf);
 531         return 0;
 532 }
 533
 534 static inline int
 535 is_valid_atomic_queue_conf(const struct rte_event_queue_conf *queue_conf)
 536 {
 537         if (queue_conf &&
 538                 !(queue_conf->event_queue_cfg &
 539                   RTE_EVENT_QUEUE_CFG_SINGLE_LINK) &&
 540                 ((queue_conf->event_queue_cfg &
 541                          RTE_EVENT_QUEUE_CFG_ALL_TYPES) ||
 542                 (queue_conf->schedule_type
 543                         == RTE_SCHED_TYPE_ATOMIC)
 544                 ))
 545                 return 1;
 546         else
 547                 return 0;
 548 }
 549
 550 static inline int
 551 is_valid_ordered_queue_conf(const struct rte_event_queue_conf *queue_conf)
 552 {
 553         if (queue_conf &&
 554                 !(queue_conf->event_queue_cfg &
 555                   RTE_EVENT_QUEUE_CFG_SINGLE_LINK) &&
 556                 ((queue_conf->event_queue_cfg &
 557                          RTE_EVENT_QUEUE_CFG_ALL_TYPES) ||
 558                 (queue_conf->schedule_type
 559                         == RTE_SCHED_TYPE_ORDERED)
 560                 ))
 561                 return 1;
 562         else
 563                 return 0;
 564 }
 565
 566
 567 int
 568 rte_event_queue_setup(uint8_t dev_id, uint8_t queue_id,
 569                       const struct rte_event_queue_conf *queue_conf)
 570 {
 571         struct rte_eventdev *dev;
 572         struct rte_event_queue_conf def_conf;
 573
 574         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 575         dev = &rte_eventdevs[dev_id];
 576
 577         if (!is_valid_queue(dev, queue_id)) {
 578                 RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id);
 579                 return -EINVAL;
 580         }
 581
 582         /* Check nb_atomic_flows limit */
 583         if (is_valid_atomic_queue_conf(queue_conf)) {
 584                 if (queue_conf->nb_atomic_flows == 0 ||
 585                     queue_conf->nb_atomic_flows >
 586                         dev->data->dev_conf.nb_event_queue_flows) {
 587                         RTE_EDEV_LOG_ERR(
 588                 "dev%d queue%d Invalid nb_atomic_flows=%d max_flows=%d",
 589                         dev_id, queue_id, queue_conf->nb_atomic_flows,
 590                         dev->data->dev_conf.nb_event_queue_flows);
 591                         return -EINVAL;
 592                 }
 593         }
 594
 595         /* Check nb_atomic_order_sequences limit */
 596         if (is_valid_ordered_queue_conf(queue_conf)) {
 597                 if (queue_conf->nb_atomic_order_sequences == 0 ||
 598                     queue_conf->nb_atomic_order_sequences >
 599                         dev->data->dev_conf.nb_event_queue_flows) {
 600                         RTE_EDEV_LOG_ERR(
 601                 "dev%d queue%d Invalid nb_atomic_order_seq=%d max_flows=%d",
 602                         dev_id, queue_id, queue_conf->nb_atomic_order_sequences,
 603                         dev->data->dev_conf.nb_event_queue_flows);
 604                         return -EINVAL;
 605                 }
 606         }
 607
 608         if (dev->data->dev_started) {
 609                 RTE_EDEV_LOG_ERR(
 610                     "device %d must be stopped to allow queue setup", dev_id);
 611                 return -EBUSY;
 612         }
 613
 614         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_setup, -ENOTSUP);
 615
 616         if (queue_conf == NULL) {
 617                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_def_conf,
 618                                         -ENOTSUP);
 619                 (*dev->dev_ops->queue_def_conf)(dev, queue_id, &def_conf);
 620                 queue_conf = &def_conf;
 621         }
 622
 623         dev->data->queues_cfg[queue_id] = *queue_conf;
 624         return (*dev->dev_ops->queue_setup)(dev, queue_id, queue_conf);
 625 }
 626
 627 static inline int
 628 is_valid_port(struct rte_eventdev *dev, uint8_t port_id)
 629 {
 630         if (port_id < dev->data->nb_ports)
 631                 return 1;
 632         else
 633                 return 0;
 634 }
 635
 636 int
 637 rte_event_port_default_conf_get(uint8_t dev_id, uint8_t port_id,
 638                                  struct rte_event_port_conf *port_conf)
 639 {
 640         struct rte_eventdev *dev;
 641
 642         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 643         dev = &rte_eventdevs[dev_id];
 644
 645         if (port_conf == NULL)
 646                 return -EINVAL;
 647
 648         if (!is_valid_port(dev, port_id)) {
 649                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 650                 return -EINVAL;
 651         }
 652
 653         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_def_conf, -ENOTSUP);
 654         memset(port_conf, 0, sizeof(struct rte_event_port_conf));
 655         (*dev->dev_ops->port_def_conf)(dev, port_id, port_conf);
 656         return 0;
 657 }
 658
 659 int
 660 rte_event_port_setup(uint8_t dev_id, uint8_t port_id,
 661                      const struct rte_event_port_conf *port_conf)
 662 {
 663         struct rte_eventdev *dev;
 664         struct rte_event_port_conf def_conf;
 665         int diag;
 666
 667         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 668         dev = &rte_eventdevs[dev_id];
 669
 670         if (!is_valid_port(dev, port_id)) {
 671                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 672                 return -EINVAL;
 673         }
 674
 675         /* Check new_event_threshold limit */
 676         if ((port_conf && !port_conf->new_event_threshold) ||
 677                         (port_conf && port_conf->new_event_threshold >
 678                                  dev->data->dev_conf.nb_events_limit)) {
 679                 RTE_EDEV_LOG_ERR(
 680                    "dev%d port%d Invalid event_threshold=%d nb_events_limit=%d",
 681                         dev_id, port_id, port_conf->new_event_threshold,
 682                         dev->data->dev_conf.nb_events_limit);
 683                 return -EINVAL;
 684         }
 685
 686         /* Check dequeue_depth limit */
 687         if ((port_conf && !port_conf->dequeue_depth) ||
 688                         (port_conf && port_conf->dequeue_depth >
 689                 dev->data->dev_conf.nb_event_port_dequeue_depth)) {
 690                 RTE_EDEV_LOG_ERR(
 691                    "dev%d port%d Invalid dequeue depth=%d max_dequeue_depth=%d",
 692                         dev_id, port_id, port_conf->dequeue_depth,
 693                         dev->data->dev_conf.nb_event_port_dequeue_depth);
 694                 return -EINVAL;
 695         }
 696
 697         /* Check enqueue_depth limit */
 698         if ((port_conf && !port_conf->enqueue_depth) ||
 699                         (port_conf && port_conf->enqueue_depth >
 700                 dev->data->dev_conf.nb_event_port_enqueue_depth)) {
 701                 RTE_EDEV_LOG_ERR(
 702                    "dev%d port%d Invalid enqueue depth=%d max_enqueue_depth=%d",
 703                         dev_id, port_id, port_conf->enqueue_depth,
 704                         dev->data->dev_conf.nb_event_port_enqueue_depth);
 705                 return -EINVAL;
 706         }
 707
 708         if (port_conf && port_conf->disable_implicit_release &&
 709             !(dev->data->event_dev_cap &
 710               RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)) {
 711                 RTE_EDEV_LOG_ERR(
 712                    "dev%d port%d Implicit release disable not supported",
 713                         dev_id, port_id);
 714                 return -EINVAL;
 715         }
 716
 717         if (dev->data->dev_started) {
 718                 RTE_EDEV_LOG_ERR(
 719                     "device %d must be stopped to allow port setup", dev_id);
 720                 return -EBUSY;
 721         }
 722
 723         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_setup, -ENOTSUP);
 724
 725         if (port_conf == NULL) {
 726                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_def_conf,
 727                                         -ENOTSUP);
 728                 (*dev->dev_ops->port_def_conf)(dev, port_id, &def_conf);
 729                 port_conf = &def_conf;
 730         }
 731
 732         dev->data->ports_cfg[port_id] = *port_conf;
 733
 734         diag = (*dev->dev_ops->port_setup)(dev, port_id, port_conf);
 735
 736         /* Unlink all the queues from this port(default state after setup) */
 737         if (!diag)
 738                 diag = rte_event_port_unlink(dev_id, port_id, NULL, 0);
 739
 740         if (diag < 0)
 741                 return diag;
 742
 743         return 0;
 744 }
 745
 746 int
 747 rte_event_dev_attr_get(uint8_t dev_id, uint32_t attr_id,
 748                        uint32_t *attr_value)
 749 {
 750         struct rte_eventdev *dev;
 751
 752         if (!attr_value)
 753                 return -EINVAL;
 754         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 755         dev = &rte_eventdevs[dev_id];
 756
 757         switch (attr_id) {
 758         case RTE_EVENT_DEV_ATTR_PORT_COUNT:
 759                 *attr_value = dev->data->nb_ports;
 760                 break;
 761         case RTE_EVENT_DEV_ATTR_QUEUE_COUNT:
 762                 *attr_value = dev->data->nb_queues;
 763                 break;
 764         case RTE_EVENT_DEV_ATTR_STARTED:
 765                 *attr_value = dev->data->dev_started;
 766                 break;
 767         default:
 768                 return -EINVAL;
 769         }
 770
 771         return 0;
 772 }
 773
 774 int
 775 rte_event_port_attr_get(uint8_t dev_id, uint8_t port_id, uint32_t attr_id,
 776                         uint32_t *attr_value)
 777 {
 778         struct rte_eventdev *dev;
 779
 780         if (!attr_value)
 781                 return -EINVAL;
 782
 783         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 784         dev = &rte_eventdevs[dev_id];
 785         if (!is_valid_port(dev, port_id)) {
 786                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 787                 return -EINVAL;
 788         }
 789
 790         switch (attr_id) {
 791         case RTE_EVENT_PORT_ATTR_ENQ_DEPTH:
 792                 *attr_value = dev->data->ports_cfg[port_id].enqueue_depth;
 793                 break;
 794         case RTE_EVENT_PORT_ATTR_DEQ_DEPTH:
 795                 *attr_value = dev->data->ports_cfg[port_id].dequeue_depth;
 796                 break;
 797         case RTE_EVENT_PORT_ATTR_NEW_EVENT_THRESHOLD:
 798                 *attr_value = dev->data->ports_cfg[port_id].new_event_threshold;
 799                 break;
 800         default:
 801                 return -EINVAL;
 802         };
 803         return 0;
 804 }
 805
 806 int
 807 rte_event_queue_attr_get(uint8_t dev_id, uint8_t queue_id, uint32_t attr_id,
 808                         uint32_t *attr_value)
 809 {
 810         struct rte_event_queue_conf *conf;
 811         struct rte_eventdev *dev;
 812
 813         if (!attr_value)
 814                 return -EINVAL;
 815
 816         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 817         dev = &rte_eventdevs[dev_id];
 818         if (!is_valid_queue(dev, queue_id)) {
 819                 RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id);
 820                 return -EINVAL;
 821         }
 822
 823         conf = &dev->data->queues_cfg[queue_id];
 824
 825         switch (attr_id) {
 826         case RTE_EVENT_QUEUE_ATTR_PRIORITY:
 827                 *attr_value = RTE_EVENT_DEV_PRIORITY_NORMAL;
 828                 if (dev->data->event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_QOS)
 829                         *attr_value = conf->priority;
 830                 break;
 831         case RTE_EVENT_QUEUE_ATTR_NB_ATOMIC_FLOWS:
 832                 *attr_value = conf->nb_atomic_flows;
 833                 break;
 834         case RTE_EVENT_QUEUE_ATTR_NB_ATOMIC_ORDER_SEQUENCES:
 835                 *attr_value = conf->nb_atomic_order_sequences;
 836                 break;
 837         case RTE_EVENT_QUEUE_ATTR_EVENT_QUEUE_CFG:
 838                 *attr_value = conf->event_queue_cfg;
 839                 break;
 840         case RTE_EVENT_QUEUE_ATTR_SCHEDULE_TYPE:
 841                 if (conf->event_queue_cfg & RTE_EVENT_QUEUE_CFG_ALL_TYPES)
 842                         return -EOVERFLOW;
 843
 844                 *attr_value = conf->schedule_type;
 845                 break;
 846         default:
 847                 return -EINVAL;
 848         };
 849         return 0;
 850 }
 851
 852 int
 853 rte_event_port_link(uint8_t dev_id, uint8_t port_id,
 854                     const uint8_t queues[], const uint8_t priorities[],
 855                     uint16_t nb_links)
 856 {
 857         struct rte_eventdev *dev;
 858         uint8_t queues_list[RTE_EVENT_MAX_QUEUES_PER_DEV];
 859         uint8_t priorities_list[RTE_EVENT_MAX_QUEUES_PER_DEV];
 860         uint16_t *links_map;
 861         int i, diag;
 862
 863         RTE_EVENTDEV_VALID_DEVID_OR_ERRNO_RET(dev_id, -EINVAL, 0);
 864         dev = &rte_eventdevs[dev_id];
 865
 866         if (*dev->dev_ops->port_link == NULL) {
 867                 RTE_PMD_DEBUG_TRACE("Function not supported\n");
 868                 rte_errno = -ENOTSUP;
 869                 return 0;
 870         }
 871
 872         if (!is_valid_port(dev, port_id)) {
 873                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 874                 rte_errno = -EINVAL;
 875                 return 0;
 876         }
 877
 878         if (queues == NULL) {
 879                 for (i = 0; i < dev->data->nb_queues; i++)
 880                         queues_list[i] = i;
 881
 882                 queues = queues_list;
 883                 nb_links = dev->data->nb_queues;
 884         }
 885
 886         if (priorities == NULL) {
 887                 for (i = 0; i < nb_links; i++)
 888                         priorities_list[i] = RTE_EVENT_DEV_PRIORITY_NORMAL;
 889
 890                 priorities = priorities_list;
 891         }
 892
 893         for (i = 0; i < nb_links; i++)
 894                 if (queues[i] >= dev->data->nb_queues) {
 895                         rte_errno = -EINVAL;
 896                         return 0;
 897                 }
 898
 899         diag = (*dev->dev_ops->port_link)(dev, dev->data->ports[port_id],
 900                                                 queues, priorities, nb_links);
 901         if (diag < 0)
 902                 return diag;
 903
 904         links_map = dev->data->links_map;
 905         /* Point links_map to this port specific area */
 906         links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV);
 907         for (i = 0; i < diag; i++)
 908                 links_map[queues[i]] = (uint8_t)priorities[i];
 909
 910         return diag;
 911 }
 912
 913 int
 914 rte_event_port_unlink(uint8_t dev_id, uint8_t port_id,
 915                       uint8_t queues[], uint16_t nb_unlinks)
 916 {
 917         struct rte_eventdev *dev;
 918         uint8_t all_queues[RTE_EVENT_MAX_QUEUES_PER_DEV];
 919         int i, diag, j;
 920         uint16_t *links_map;
 921
 922         RTE_EVENTDEV_VALID_DEVID_OR_ERRNO_RET(dev_id, -EINVAL, 0);
 923         dev = &rte_eventdevs[dev_id];
 924
 925         if (*dev->dev_ops->port_unlink == NULL) {
 926                 RTE_PMD_DEBUG_TRACE("Function not supported\n");
 927                 rte_errno = -ENOTSUP;
 928                 return 0;
 929         }
 930
 931         if (!is_valid_port(dev, port_id)) {
 932                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 933                 rte_errno = -EINVAL;
 934                 return 0;
 935         }
 936
 937         links_map = dev->data->links_map;
 938         /* Point links_map to this port specific area */
 939         links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV);
 940
 941         if (queues == NULL) {
 942                 j = 0;
 943                 for (i = 0; i < dev->data->nb_queues; i++) {
 944                         if (links_map[i] !=
 945                                         EVENT_QUEUE_SERVICE_PRIORITY_INVALID) {
 946                                 all_queues[j] = i;
 947                                 j++;
 948                         }
 949                 }
 950                 queues = all_queues;
 951         } else {
 952                 for (j = 0; j < nb_unlinks; j++) {
 953                         if (links_map[queues[j]] ==
 954                                         EVENT_QUEUE_SERVICE_PRIORITY_INVALID)
 955                                 break;
 956                 }
 957         }
 958
 959         nb_unlinks = j;
 960         for (i = 0; i < nb_unlinks; i++)
 961                 if (queues[i] >= dev->data->nb_queues) {
 962                         rte_errno = -EINVAL;
 963                         return 0;
 964                 }
 965
 966         diag = (*dev->dev_ops->port_unlink)(dev, dev->data->ports[port_id],
 967                                         queues, nb_unlinks);
 968
 969         if (diag < 0)
 970                 return diag;
 971
 972         for (i = 0; i < diag; i++)
 973                 links_map[queues[i]] = EVENT_QUEUE_SERVICE_PRIORITY_INVALID;
 974
 975         return diag;
 976 }
 977
 978 int
 979 rte_event_port_links_get(uint8_t dev_id, uint8_t port_id,
 980                          uint8_t queues[], uint8_t priorities[])
 981 {
 982         struct rte_eventdev *dev;
 983         uint16_t *links_map;
 984         int i, count = 0;
 985
 986         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 987         dev = &rte_eventdevs[dev_id];
 988         if (!is_valid_port(dev, port_id)) {
 989                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 990                 return -EINVAL;
 991         }
 992
 993         links_map = dev->data->links_map;
 994         /* Point links_map to this port specific area */
 995         links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV);
 996         for (i = 0; i < dev->data->nb_queues; i++) {
 997                 if (links_map[i] != EVENT_QUEUE_SERVICE_PRIORITY_INVALID) {
 998                         queues[count] = i;
 999                         priorities[count] = (uint8_t)links_map[i];
1000                         ++count;
1001                 }
1002         }
1003         return count;
1004 }
1005
1006 int
1007 rte_event_dequeue_timeout_ticks(uint8_t dev_id, uint64_t ns,
1008                                  uint64_t *timeout_ticks)
1009 {
1010         struct rte_eventdev *dev;
1011
1012         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1013         dev = &rte_eventdevs[dev_id];
1014         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->timeout_ticks, -ENOTSUP);
1015
1016         if (timeout_ticks == NULL)
1017                 return -EINVAL;
1018
1019         return (*dev->dev_ops->timeout_ticks)(dev, ns, timeout_ticks);
1020 }
1021
1022 int
1023 rte_event_dev_service_id_get(uint8_t dev_id, uint32_t *service_id)
1024 {
1025         struct rte_eventdev *dev;
1026
1027         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1028         dev = &rte_eventdevs[dev_id];
1029
1030         if (service_id == NULL)
1031                 return -EINVAL;
1032
1033         if (dev->data->service_inited)
1034                 *service_id = dev->data->service_id;
1035
1036         return dev->data->service_inited ? 0 : -ESRCH;
1037 }
1038
1039 int
1040 rte_event_dev_dump(uint8_t dev_id, FILE *f)
1041 {
1042         struct rte_eventdev *dev;
1043
1044         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1045         dev = &rte_eventdevs[dev_id];
1046         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dump, -ENOTSUP);
1047
1048         (*dev->dev_ops->dump)(dev, f);
1049         return 0;
1050
1051 }
1052
1053 static int
1054 xstats_get_count(uint8_t dev_id, enum rte_event_dev_xstats_mode mode,
1055                 uint8_t queue_port_id)
1056 {
1057         struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1058         if (dev->dev_ops->xstats_get_names != NULL)
1059                 return (*dev->dev_ops->xstats_get_names)(dev, mode,
1060                                                         queue_port_id,
1061                                                         NULL, NULL, 0);
1062         return 0;
1063 }
1064
1065 int
1066 rte_event_dev_xstats_names_get(uint8_t dev_id,
1067                 enum rte_event_dev_xstats_mode mode, uint8_t queue_port_id,
1068                 struct rte_event_dev_xstats_name *xstats_names,
1069                 unsigned int *ids, unsigned int size)
1070 {
1071         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV);
1072         const int cnt_expected_entries = xstats_get_count(dev_id, mode,
1073                                                           queue_port_id);
1074         if (xstats_names == NULL || cnt_expected_entries < 0 ||
1075                         (int)size < cnt_expected_entries)
1076                 return cnt_expected_entries;
1077
1078         /* dev_id checked above */
1079         const struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1080
1081         if (dev->dev_ops->xstats_get_names != NULL)
1082                 return (*dev->dev_ops->xstats_get_names)(dev, mode,
1083                                 queue_port_id, xstats_names, ids, size);
1084
1085         return -ENOTSUP;
1086 }
1087
1088 /* retrieve eventdev extended statistics */
1089 int
1090 rte_event_dev_xstats_get(uint8_t dev_id, enum rte_event_dev_xstats_mode mode,
1091                 uint8_t queue_port_id, const unsigned int ids[],
1092                 uint64_t values[], unsigned int n)
1093 {
1094         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV);
1095         const struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1096
1097         /* implemented by the driver */
1098         if (dev->dev_ops->xstats_get != NULL)
1099                 return (*dev->dev_ops->xstats_get)(dev, mode, queue_port_id,
1100                                 ids, values, n);
1101         return -ENOTSUP;
1102 }
1103
1104 uint64_t
1105 rte_event_dev_xstats_by_name_get(uint8_t dev_id, const char *name,
1106                 unsigned int *id)
1107 {
1108         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, 0);
1109         const struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1110         unsigned int temp = -1;
1111
1112         if (id != NULL)
1113                 *id = (unsigned int)-1;
1114         else
1115                 id = &temp; /* ensure driver never gets a NULL value */
1116
1117         /* implemented by driver */
1118         if (dev->dev_ops->xstats_get_by_name != NULL)
1119                 return (*dev->dev_ops->xstats_get_by_name)(dev, name, id);
1120         return -ENOTSUP;
1121 }
1122
1123 int rte_event_dev_xstats_reset(uint8_t dev_id,
1124                 enum rte_event_dev_xstats_mode mode, int16_t queue_port_id,
1125                 const uint32_t ids[], uint32_t nb_ids)
1126 {
1127         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1128         struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1129
1130         if (dev->dev_ops->xstats_reset != NULL)
1131                 return (*dev->dev_ops->xstats_reset)(dev, mode, queue_port_id,
1132                                                         ids, nb_ids);
1133         return -ENOTSUP;
1134 }
1135
1136 int rte_event_dev_selftest(uint8_t dev_id)
1137 {
1138         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1139         struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1140
1141         if (dev->dev_ops->dev_selftest != NULL)
1142                 return (*dev->dev_ops->dev_selftest)();
1143         return -ENOTSUP;
1144 }
1145
1146 int
1147 rte_event_dev_start(uint8_t dev_id)
1148 {
1149         struct rte_eventdev *dev;
1150         int diag;
1151
1152         RTE_EDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
1153
1154         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1155         dev = &rte_eventdevs[dev_id];
1156         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
1157
1158         if (dev->data->dev_started != 0) {
1159                 RTE_EDEV_LOG_ERR("Device with dev_id=%" PRIu8 "already started",
1160                         dev_id);
1161                 return 0;
1162         }
1163
1164         diag = (*dev->dev_ops->dev_start)(dev);
1165         if (diag == 0)
1166                 dev->data->dev_started = 1;
1167         else
1168                 return diag;
1169
1170         return 0;
1171 }
1172
1173 int
1174 rte_event_dev_stop_flush_callback_register(uint8_t dev_id,
1175                 eventdev_stop_flush_t callback, void *userdata)
1176 {
1177         struct rte_eventdev *dev;
1178
1179         RTE_EDEV_LOG_DEBUG("Stop flush register dev_id=%" PRIu8, dev_id);
1180
1181         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1182         dev = &rte_eventdevs[dev_id];
1183
1184         dev->dev_ops->dev_stop_flush = callback;
1185         dev->data->dev_stop_flush_arg = userdata;
1186
1187         return 0;
1188 }
1189
1190 void
1191 rte_event_dev_stop(uint8_t dev_id)
1192 {
1193         struct rte_eventdev *dev;
1194
1195         RTE_EDEV_LOG_DEBUG("Stop dev_id=%" PRIu8, dev_id);
1196
1197         RTE_EVENTDEV_VALID_DEVID_OR_RET(dev_id);
1198         dev = &rte_eventdevs[dev_id];
1199         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
1200
1201         if (dev->data->dev_started == 0) {
1202                 RTE_EDEV_LOG_ERR("Device with dev_id=%" PRIu8 "already stopped",
1203                         dev_id);
1204                 return;
1205         }
1206
1207         dev->data->dev_started = 0;
1208         (*dev->dev_ops->dev_stop)(dev);
1209 }
1210
1211 int
1212 rte_event_dev_close(uint8_t dev_id)
1213 {
1214         struct rte_eventdev *dev;
1215
1216         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1217         dev = &rte_eventdevs[dev_id];
1218         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
1219
1220         /* Device must be stopped before it can be closed */
1221         if (dev->data->dev_started == 1) {
1222                 RTE_EDEV_LOG_ERR("Device %u must be stopped before closing",
1223                                 dev_id);
1224                 return -EBUSY;
1225         }
1226
1227         return (*dev->dev_ops->dev_close)(dev);
1228 }
1229
1230 static inline int
1231 rte_eventdev_data_alloc(uint8_t dev_id, struct rte_eventdev_data **data,
1232                 int socket_id)
1233 {
1234         char mz_name[RTE_EVENTDEV_NAME_MAX_LEN];
1235         const struct rte_memzone *mz;
1236         int n;
1237
1238         /* Generate memzone name */
1239         n = snprintf(mz_name, sizeof(mz_name), "rte_eventdev_data_%u", dev_id);
1240         if (n >= (int)sizeof(mz_name))
1241                 return -EINVAL;
1242
1243         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
1244                 mz = rte_memzone_reserve(mz_name,
1245                                 sizeof(struct rte_eventdev_data),
1246                                 socket_id, 0);
1247         } else
1248                 mz = rte_memzone_lookup(mz_name);
1249
1250         if (mz == NULL)
1251                 return -ENOMEM;
1252
1253         *data = mz->addr;
1254         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
1255                 memset(*data, 0, sizeof(struct rte_eventdev_data));
1256
1257         return 0;
1258 }
1259
1260 static inline uint8_t
1261 rte_eventdev_find_free_device_index(void)
1262 {
1263         uint8_t dev_id;
1264
1265         for (dev_id = 0; dev_id < RTE_EVENT_MAX_DEVS; dev_id++) {
1266                 if (rte_eventdevs[dev_id].attached ==
1267                                 RTE_EVENTDEV_DETACHED)
1268                         return dev_id;
1269         }
1270         return RTE_EVENT_MAX_DEVS;
1271 }
1272
1273 struct rte_eventdev *
1274 rte_event_pmd_allocate(const char *name, int socket_id)
1275 {
1276         struct rte_eventdev *eventdev;
1277         uint8_t dev_id;
1278
1279         if (rte_event_pmd_get_named_dev(name) != NULL) {
1280                 RTE_EDEV_LOG_ERR("Event device with name %s already "
1281                                 "allocated!", name);
1282                 return NULL;
1283         }
1284
1285         dev_id = rte_eventdev_find_free_device_index();
1286         if (dev_id == RTE_EVENT_MAX_DEVS) {
1287                 RTE_EDEV_LOG_ERR("Reached maximum number of event devices");
1288                 return NULL;
1289         }
1290
1291         eventdev = &rte_eventdevs[dev_id];
1292
1293         if (eventdev->data == NULL) {
1294                 struct rte_eventdev_data *eventdev_data = NULL;
1295
1296                 int retval = rte_eventdev_data_alloc(dev_id, &eventdev_data,
1297                                 socket_id);
1298
1299                 if (retval < 0 || eventdev_data == NULL)
1300                         return NULL;
1301
1302                 eventdev->data = eventdev_data;
1303
1304                 snprintf(eventdev->data->name, RTE_EVENTDEV_NAME_MAX_LEN,
1305                                 "%s", name);
1306
1307                 eventdev->data->dev_id = dev_id;
1308                 eventdev->data->socket_id = socket_id;
1309                 eventdev->data->dev_started = 0;
1310
1311                 eventdev->attached = RTE_EVENTDEV_ATTACHED;
1312
1313                 eventdev_globals.nb_devs++;
1314         }
1315
1316         return eventdev;
1317 }
1318
1319 int
1320 rte_event_pmd_release(struct rte_eventdev *eventdev)
1321 {
1322         int ret;
1323         char mz_name[RTE_EVENTDEV_NAME_MAX_LEN];
1324         const struct rte_memzone *mz;
1325
1326         if (eventdev == NULL)
1327                 return -EINVAL;
1328
1329         eventdev->attached = RTE_EVENTDEV_DETACHED;
1330         eventdev_globals.nb_devs--;
1331
1332         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
1333                 rte_free(eventdev->data->dev_private);
1334
1335                 /* Generate memzone name */
1336                 ret = snprintf(mz_name, sizeof(mz_name), "rte_eventdev_data_%u",
1337                                 eventdev->data->dev_id);
1338                 if (ret >= (int)sizeof(mz_name))
1339                         return -EINVAL;
1340
1341                 mz = rte_memzone_lookup(mz_name);
1342                 if (mz == NULL)
1343                         return -ENOMEM;
1344
1345                 ret = rte_memzone_free(mz);
1346                 if (ret)
1347                         return ret;
1348         }
1349
1350         eventdev->data = NULL;
1351         return 0;
1352 }