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_string_fns.h>
  17 #include <rte_byteorder.h>
  18 #include <rte_log.h>
  19 #include <rte_debug.h>
  20 #include <rte_dev.h>
  21 #include <rte_memory.h>
  22 #include <rte_memcpy.h>
  23 #include <rte_memzone.h>
  24 #include <rte_eal.h>
  25 #include <rte_per_lcore.h>
  26 #include <rte_lcore.h>
  27 #include <rte_atomic.h>
  28 #include <rte_branch_prediction.h>
  29 #include <rte_common.h>
  30 #include <rte_malloc.h>
  31 #include <rte_errno.h>
  32 #include <rte_ethdev.h>
  33 #include <rte_cryptodev.h>
  34 #include <rte_cryptodev_pmd.h>
  35
  36 #include "rte_eventdev.h"
  37 #include "rte_eventdev_pmd.h"
  38
  39 static struct rte_eventdev rte_event_devices[RTE_EVENT_MAX_DEVS];
  40
  41 struct rte_eventdev *rte_eventdevs = rte_event_devices;
  42
  43 static struct rte_eventdev_global eventdev_globals = {
  44         .nb_devs                = 0
  45 };
  46
  47 /* Event dev north bound API implementation */
  48
  49 uint8_t
  50 rte_event_dev_count(void)
  51 {
  52         return eventdev_globals.nb_devs;
  53 }
  54
  55 int
  56 rte_event_dev_get_dev_id(const char *name)
  57 {
  58         int i;
  59         uint8_t cmp;
  60
  61         if (!name)
  62                 return -EINVAL;
  63
  64         for (i = 0; i < eventdev_globals.nb_devs; i++) {
  65                 cmp = (strncmp(rte_event_devices[i].data->name, name,
  66                                 RTE_EVENTDEV_NAME_MAX_LEN) == 0) ||
  67                         (rte_event_devices[i].dev ? (strncmp(
  68                                 rte_event_devices[i].dev->driver->name, name,
  69                                          RTE_EVENTDEV_NAME_MAX_LEN) == 0) : 0);
  70                 if (cmp && (rte_event_devices[i].attached ==
  71                                         RTE_EVENTDEV_ATTACHED))
  72                         return i;
  73         }
  74         return -ENODEV;
  75 }
  76
  77 int
  78 rte_event_dev_socket_id(uint8_t dev_id)
  79 {
  80         struct rte_eventdev *dev;
  81
  82         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
  83         dev = &rte_eventdevs[dev_id];
  84
  85         return dev->data->socket_id;
  86 }
  87
  88 int
  89 rte_event_dev_info_get(uint8_t dev_id, struct rte_event_dev_info *dev_info)
  90 {
  91         struct rte_eventdev *dev;
  92
  93         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
  94         dev = &rte_eventdevs[dev_id];
  95
  96         if (dev_info == NULL)
  97                 return -EINVAL;
  98
  99         memset(dev_info, 0, sizeof(struct rte_event_dev_info));
 100
 101         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 102         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 103
 104         dev_info->dequeue_timeout_ns = dev->data->dev_conf.dequeue_timeout_ns;
 105
 106         dev_info->dev = dev->dev;
 107         return 0;
 108 }
 109
 110 int
 111 rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint16_t eth_port_id,
 112                                 uint32_t *caps)
 113 {
 114         struct rte_eventdev *dev;
 115
 116         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 117         RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_port_id, -EINVAL);
 118
 119         dev = &rte_eventdevs[dev_id];
 120
 121         if (caps == NULL)
 122                 return -EINVAL;
 123         *caps = 0;
 124
 125         return dev->dev_ops->eth_rx_adapter_caps_get ?
 126                                 (*dev->dev_ops->eth_rx_adapter_caps_get)(dev,
 127                                                 &rte_eth_devices[eth_port_id],
 128                                                 caps)
 129                                 : 0;
 130 }
 131
 132 int
 133 rte_event_timer_adapter_caps_get(uint8_t dev_id, uint32_t *caps)
 134 {
 135         struct rte_eventdev *dev;
 136         const struct rte_event_timer_adapter_ops *ops;
 137
 138         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 139
 140         dev = &rte_eventdevs[dev_id];
 141
 142         if (caps == NULL)
 143                 return -EINVAL;
 144         *caps = 0;
 145
 146         return dev->dev_ops->timer_adapter_caps_get ?
 147                                 (*dev->dev_ops->timer_adapter_caps_get)(dev,
 148                                                                         0,
 149                                                                         caps,
 150                                                                         &ops)
 151                                 : 0;
 152 }
 153
 154 int
 155 rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
 156                                   uint32_t *caps)
 157 {
 158         struct rte_eventdev *dev;
 159         struct rte_cryptodev *cdev;
 160
 161         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 162         if (!rte_cryptodev_pmd_is_valid_dev(cdev_id))
 163                 return -EINVAL;
 164
 165         dev = &rte_eventdevs[dev_id];
 166         cdev = rte_cryptodev_pmd_get_dev(cdev_id);
 167
 168         if (caps == NULL)
 169                 return -EINVAL;
 170         *caps = 0;
 171
 172         return dev->dev_ops->crypto_adapter_caps_get ?
 173                 (*dev->dev_ops->crypto_adapter_caps_get)
 174                 (dev, cdev, caps) : -ENOTSUP;
 175 }
 176
 177 int
 178 rte_event_eth_tx_adapter_caps_get(uint8_t dev_id, uint16_t eth_port_id,
 179                                 uint32_t *caps)
 180 {
 181         struct rte_eventdev *dev;
 182         struct rte_eth_dev *eth_dev;
 183
 184         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 185         RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_port_id, -EINVAL);
 186
 187         dev = &rte_eventdevs[dev_id];
 188         eth_dev = &rte_eth_devices[eth_port_id];
 189
 190         if (caps == NULL)
 191                 return -EINVAL;
 192
 193         *caps = 0;
 194
 195         return dev->dev_ops->eth_tx_adapter_caps_get ?
 196                         (*dev->dev_ops->eth_tx_adapter_caps_get)(dev,
 197                                                                 eth_dev,
 198                                                                 caps)
 199                         : 0;
 200 }
 201
 202 static inline int
 203 rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues)
 204 {
 205         uint8_t old_nb_queues = dev->data->nb_queues;
 206         struct rte_event_queue_conf *queues_cfg;
 207         unsigned int i;
 208
 209         RTE_EDEV_LOG_DEBUG("Setup %d queues on device %u", nb_queues,
 210                          dev->data->dev_id);
 211
 212         /* First time configuration */
 213         if (dev->data->queues_cfg == NULL && nb_queues != 0) {
 214                 /* Allocate memory to store queue configuration */
 215                 dev->data->queues_cfg = rte_zmalloc_socket(
 216                                 "eventdev->data->queues_cfg",
 217                                 sizeof(dev->data->queues_cfg[0]) * nb_queues,
 218                                 RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 219                 if (dev->data->queues_cfg == NULL) {
 220                         dev->data->nb_queues = 0;
 221                         RTE_EDEV_LOG_ERR("failed to get mem for queue cfg,"
 222                                         "nb_queues %u", nb_queues);
 223                         return -(ENOMEM);
 224                 }
 225         /* Re-configure */
 226         } else if (dev->data->queues_cfg != NULL && nb_queues != 0) {
 227                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP);
 228
 229                 for (i = nb_queues; i < old_nb_queues; i++)
 230                         (*dev->dev_ops->queue_release)(dev, i);
 231
 232                 /* Re allocate memory to store queue configuration */
 233                 queues_cfg = dev->data->queues_cfg;
 234                 queues_cfg = rte_realloc(queues_cfg,
 235                                 sizeof(queues_cfg[0]) * nb_queues,
 236                                 RTE_CACHE_LINE_SIZE);
 237                 if (queues_cfg == NULL) {
 238                         RTE_EDEV_LOG_ERR("failed to realloc queue cfg memory,"
 239                                                 " nb_queues %u", nb_queues);
 240                         return -(ENOMEM);
 241                 }
 242                 dev->data->queues_cfg = queues_cfg;
 243
 244                 if (nb_queues > old_nb_queues) {
 245                         uint8_t new_qs = nb_queues - old_nb_queues;
 246
 247                         memset(queues_cfg + old_nb_queues, 0,
 248                                 sizeof(queues_cfg[0]) * new_qs);
 249                 }
 250         } else if (dev->data->queues_cfg != NULL && nb_queues == 0) {
 251                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP);
 252
 253                 for (i = nb_queues; i < old_nb_queues; i++)
 254                         (*dev->dev_ops->queue_release)(dev, i);
 255         }
 256
 257         dev->data->nb_queues = nb_queues;
 258         return 0;
 259 }
 260
 261 #define EVENT_QUEUE_SERVICE_PRIORITY_INVALID (0xdead)
 262
 263 static inline int
 264 rte_event_dev_port_config(struct rte_eventdev *dev, uint8_t nb_ports)
 265 {
 266         uint8_t old_nb_ports = dev->data->nb_ports;
 267         void **ports;
 268         uint16_t *links_map;
 269         struct rte_event_port_conf *ports_cfg;
 270         unsigned int i;
 271
 272         RTE_EDEV_LOG_DEBUG("Setup %d ports on device %u", nb_ports,
 273                          dev->data->dev_id);
 274
 275         /* First time configuration */
 276         if (dev->data->ports == NULL && nb_ports != 0) {
 277                 dev->data->ports = rte_zmalloc_socket("eventdev->data->ports",
 278                                 sizeof(dev->data->ports[0]) * nb_ports,
 279                                 RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 280                 if (dev->data->ports == NULL) {
 281                         dev->data->nb_ports = 0;
 282                         RTE_EDEV_LOG_ERR("failed to get mem for port meta data,"
 283                                         "nb_ports %u", nb_ports);
 284                         return -(ENOMEM);
 285                 }
 286
 287                 /* Allocate memory to store port configurations */
 288                 dev->data->ports_cfg =
 289                         rte_zmalloc_socket("eventdev->ports_cfg",
 290                         sizeof(dev->data->ports_cfg[0]) * nb_ports,
 291                         RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 292                 if (dev->data->ports_cfg == NULL) {
 293                         dev->data->nb_ports = 0;
 294                         RTE_EDEV_LOG_ERR("failed to get mem for port cfg,"
 295                                         "nb_ports %u", nb_ports);
 296                         return -(ENOMEM);
 297                 }
 298
 299                 /* Allocate memory to store queue to port link connection */
 300                 dev->data->links_map =
 301                         rte_zmalloc_socket("eventdev->links_map",
 302                         sizeof(dev->data->links_map[0]) * nb_ports *
 303                         RTE_EVENT_MAX_QUEUES_PER_DEV,
 304                         RTE_CACHE_LINE_SIZE, dev->data->socket_id);
 305                 if (dev->data->links_map == NULL) {
 306                         dev->data->nb_ports = 0;
 307                         RTE_EDEV_LOG_ERR("failed to get mem for port_map area,"
 308                                         "nb_ports %u", nb_ports);
 309                         return -(ENOMEM);
 310                 }
 311                 for (i = 0; i < nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV; i++)
 312                         dev->data->links_map[i] =
 313                                 EVENT_QUEUE_SERVICE_PRIORITY_INVALID;
 314         } else if (dev->data->ports != NULL && nb_ports != 0) {/* re-config */
 315                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_release, -ENOTSUP);
 316
 317                 ports = dev->data->ports;
 318                 ports_cfg = dev->data->ports_cfg;
 319                 links_map = dev->data->links_map;
 320
 321                 for (i = nb_ports; i < old_nb_ports; i++)
 322                         (*dev->dev_ops->port_release)(ports[i]);
 323
 324                 /* Realloc memory for ports */
 325                 ports = rte_realloc(ports, sizeof(ports[0]) * nb_ports,
 326                                 RTE_CACHE_LINE_SIZE);
 327                 if (ports == NULL) {
 328                         RTE_EDEV_LOG_ERR("failed to realloc port meta data,"
 329                                                 " nb_ports %u", nb_ports);
 330                         return -(ENOMEM);
 331                 }
 332
 333                 /* Realloc memory for ports_cfg */
 334                 ports_cfg = rte_realloc(ports_cfg,
 335                         sizeof(ports_cfg[0]) * nb_ports,
 336                         RTE_CACHE_LINE_SIZE);
 337                 if (ports_cfg == NULL) {
 338                         RTE_EDEV_LOG_ERR("failed to realloc port cfg mem,"
 339                                                 " nb_ports %u", nb_ports);
 340                         return -(ENOMEM);
 341                 }
 342
 343                 /* Realloc memory to store queue to port link connection */
 344                 links_map = rte_realloc(links_map,
 345                         sizeof(dev->data->links_map[0]) * nb_ports *
 346                         RTE_EVENT_MAX_QUEUES_PER_DEV,
 347                         RTE_CACHE_LINE_SIZE);
 348                 if (links_map == NULL) {
 349                         dev->data->nb_ports = 0;
 350                         RTE_EDEV_LOG_ERR("failed to realloc mem for port_map,"
 351                                         "nb_ports %u", nb_ports);
 352                         return -(ENOMEM);
 353                 }
 354
 355                 if (nb_ports > old_nb_ports) {
 356                         uint8_t new_ps = nb_ports - old_nb_ports;
 357                         unsigned int old_links_map_end =
 358                                 old_nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV;
 359                         unsigned int links_map_end =
 360                                 nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV;
 361
 362                         memset(ports + old_nb_ports, 0,
 363                                 sizeof(ports[0]) * new_ps);
 364                         memset(ports_cfg + old_nb_ports, 0,
 365                                 sizeof(ports_cfg[0]) * new_ps);
 366                         for (i = old_links_map_end; i < links_map_end; i++)
 367                                 links_map[i] =
 368                                         EVENT_QUEUE_SERVICE_PRIORITY_INVALID;
 369                 }
 370
 371                 dev->data->ports = ports;
 372                 dev->data->ports_cfg = ports_cfg;
 373                 dev->data->links_map = links_map;
 374         } else if (dev->data->ports != NULL && nb_ports == 0) {
 375                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_release, -ENOTSUP);
 376
 377                 ports = dev->data->ports;
 378                 for (i = nb_ports; i < old_nb_ports; i++)
 379                         (*dev->dev_ops->port_release)(ports[i]);
 380         }
 381
 382         dev->data->nb_ports = nb_ports;
 383         return 0;
 384 }
 385
 386 int
 387 rte_event_dev_configure(uint8_t dev_id,
 388                         const struct rte_event_dev_config *dev_conf)
 389 {
 390         struct rte_eventdev *dev;
 391         struct rte_event_dev_info info;
 392         int diag;
 393
 394         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 395         dev = &rte_eventdevs[dev_id];
 396
 397         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 398         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 399
 400         if (dev->data->dev_started) {
 401                 RTE_EDEV_LOG_ERR(
 402                     "device %d must be stopped to allow configuration", dev_id);
 403                 return -EBUSY;
 404         }
 405
 406         if (dev_conf == NULL)
 407                 return -EINVAL;
 408
 409         (*dev->dev_ops->dev_infos_get)(dev, &info);
 410
 411         /* Check dequeue_timeout_ns value is in limit */
 412         if (!(dev_conf->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT)) {
 413                 if (dev_conf->dequeue_timeout_ns &&
 414                     (dev_conf->dequeue_timeout_ns < info.min_dequeue_timeout_ns
 415                         || dev_conf->dequeue_timeout_ns >
 416                                  info.max_dequeue_timeout_ns)) {
 417                         RTE_EDEV_LOG_ERR("dev%d invalid dequeue_timeout_ns=%d"
 418                         " min_dequeue_timeout_ns=%d max_dequeue_timeout_ns=%d",
 419                         dev_id, dev_conf->dequeue_timeout_ns,
 420                         info.min_dequeue_timeout_ns,
 421                         info.max_dequeue_timeout_ns);
 422                         return -EINVAL;
 423                 }
 424         }
 425
 426         /* Check nb_events_limit is in limit */
 427         if (dev_conf->nb_events_limit > info.max_num_events) {
 428                 RTE_EDEV_LOG_ERR("dev%d nb_events_limit=%d > max_num_events=%d",
 429                 dev_id, dev_conf->nb_events_limit, info.max_num_events);
 430                 return -EINVAL;
 431         }
 432
 433         /* Check nb_event_queues is in limit */
 434         if (!dev_conf->nb_event_queues) {
 435                 RTE_EDEV_LOG_ERR("dev%d nb_event_queues cannot be zero",
 436                                         dev_id);
 437                 return -EINVAL;
 438         }
 439         if (dev_conf->nb_event_queues > info.max_event_queues) {
 440                 RTE_EDEV_LOG_ERR("%d nb_event_queues=%d > max_event_queues=%d",
 441                 dev_id, dev_conf->nb_event_queues, info.max_event_queues);
 442                 return -EINVAL;
 443         }
 444
 445         /* Check nb_event_ports is in limit */
 446         if (!dev_conf->nb_event_ports) {
 447                 RTE_EDEV_LOG_ERR("dev%d nb_event_ports cannot be zero", dev_id);
 448                 return -EINVAL;
 449         }
 450         if (dev_conf->nb_event_ports > info.max_event_ports) {
 451                 RTE_EDEV_LOG_ERR("id%d nb_event_ports=%d > max_event_ports= %d",
 452                 dev_id, dev_conf->nb_event_ports, info.max_event_ports);
 453                 return -EINVAL;
 454         }
 455
 456         /* Check nb_event_queue_flows is in limit */
 457         if (!dev_conf->nb_event_queue_flows) {
 458                 RTE_EDEV_LOG_ERR("dev%d nb_flows cannot be zero", dev_id);
 459                 return -EINVAL;
 460         }
 461         if (dev_conf->nb_event_queue_flows > info.max_event_queue_flows) {
 462                 RTE_EDEV_LOG_ERR("dev%d nb_flows=%x > max_flows=%x",
 463                 dev_id, dev_conf->nb_event_queue_flows,
 464                 info.max_event_queue_flows);
 465                 return -EINVAL;
 466         }
 467
 468         /* Check nb_event_port_dequeue_depth is in limit */
 469         if (!dev_conf->nb_event_port_dequeue_depth) {
 470                 RTE_EDEV_LOG_ERR("dev%d nb_dequeue_depth cannot be zero",
 471                                         dev_id);
 472                 return -EINVAL;
 473         }
 474         if ((info.event_dev_cap & RTE_EVENT_DEV_CAP_BURST_MODE) &&
 475                  (dev_conf->nb_event_port_dequeue_depth >
 476                          info.max_event_port_dequeue_depth)) {
 477                 RTE_EDEV_LOG_ERR("dev%d nb_dq_depth=%d > max_dq_depth=%d",
 478                 dev_id, dev_conf->nb_event_port_dequeue_depth,
 479                 info.max_event_port_dequeue_depth);
 480                 return -EINVAL;
 481         }
 482
 483         /* Check nb_event_port_enqueue_depth is in limit */
 484         if (!dev_conf->nb_event_port_enqueue_depth) {
 485                 RTE_EDEV_LOG_ERR("dev%d nb_enqueue_depth cannot be zero",
 486                                         dev_id);
 487                 return -EINVAL;
 488         }
 489         if ((info.event_dev_cap & RTE_EVENT_DEV_CAP_BURST_MODE) &&
 490                 (dev_conf->nb_event_port_enqueue_depth >
 491                          info.max_event_port_enqueue_depth)) {
 492                 RTE_EDEV_LOG_ERR("dev%d nb_enq_depth=%d > max_enq_depth=%d",
 493                 dev_id, dev_conf->nb_event_port_enqueue_depth,
 494                 info.max_event_port_enqueue_depth);
 495                 return -EINVAL;
 496         }
 497
 498         /* Copy the dev_conf parameter into the dev structure */
 499         memcpy(&dev->data->dev_conf, dev_conf, sizeof(dev->data->dev_conf));
 500
 501         /* Setup new number of queues and reconfigure device. */
 502         diag = rte_event_dev_queue_config(dev, dev_conf->nb_event_queues);
 503         if (diag != 0) {
 504                 RTE_EDEV_LOG_ERR("dev%d rte_event_dev_queue_config = %d",
 505                                 dev_id, diag);
 506                 return diag;
 507         }
 508
 509         /* Setup new number of ports and reconfigure device. */
 510         diag = rte_event_dev_port_config(dev, dev_conf->nb_event_ports);
 511         if (diag != 0) {
 512                 rte_event_dev_queue_config(dev, 0);
 513                 RTE_EDEV_LOG_ERR("dev%d rte_event_dev_port_config = %d",
 514                                 dev_id, diag);
 515                 return diag;
 516         }
 517
 518         /* Configure the device */
 519         diag = (*dev->dev_ops->dev_configure)(dev);
 520         if (diag != 0) {
 521                 RTE_EDEV_LOG_ERR("dev%d dev_configure = %d", dev_id, diag);
 522                 rte_event_dev_queue_config(dev, 0);
 523                 rte_event_dev_port_config(dev, 0);
 524         }
 525
 526         dev->data->event_dev_cap = info.event_dev_cap;
 527         return diag;
 528 }
 529
 530 static inline int
 531 is_valid_queue(struct rte_eventdev *dev, uint8_t queue_id)
 532 {
 533         if (queue_id < dev->data->nb_queues && queue_id <
 534                                 RTE_EVENT_MAX_QUEUES_PER_DEV)
 535                 return 1;
 536         else
 537                 return 0;
 538 }
 539
 540 int
 541 rte_event_queue_default_conf_get(uint8_t dev_id, uint8_t queue_id,
 542                                  struct rte_event_queue_conf *queue_conf)
 543 {
 544         struct rte_eventdev *dev;
 545
 546         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 547         dev = &rte_eventdevs[dev_id];
 548
 549         if (queue_conf == NULL)
 550                 return -EINVAL;
 551
 552         if (!is_valid_queue(dev, queue_id)) {
 553                 RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id);
 554                 return -EINVAL;
 555         }
 556
 557         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_def_conf, -ENOTSUP);
 558         memset(queue_conf, 0, sizeof(struct rte_event_queue_conf));
 559         (*dev->dev_ops->queue_def_conf)(dev, queue_id, queue_conf);
 560         return 0;
 561 }
 562
 563 static inline int
 564 is_valid_atomic_queue_conf(const struct rte_event_queue_conf *queue_conf)
 565 {
 566         if (queue_conf &&
 567                 !(queue_conf->event_queue_cfg &
 568                   RTE_EVENT_QUEUE_CFG_SINGLE_LINK) &&
 569                 ((queue_conf->event_queue_cfg &
 570                          RTE_EVENT_QUEUE_CFG_ALL_TYPES) ||
 571                 (queue_conf->schedule_type
 572                         == RTE_SCHED_TYPE_ATOMIC)
 573                 ))
 574                 return 1;
 575         else
 576                 return 0;
 577 }
 578
 579 static inline int
 580 is_valid_ordered_queue_conf(const struct rte_event_queue_conf *queue_conf)
 581 {
 582         if (queue_conf &&
 583                 !(queue_conf->event_queue_cfg &
 584                   RTE_EVENT_QUEUE_CFG_SINGLE_LINK) &&
 585                 ((queue_conf->event_queue_cfg &
 586                          RTE_EVENT_QUEUE_CFG_ALL_TYPES) ||
 587                 (queue_conf->schedule_type
 588                         == RTE_SCHED_TYPE_ORDERED)
 589                 ))
 590                 return 1;
 591         else
 592                 return 0;
 593 }
 594
 595
 596 int
 597 rte_event_queue_setup(uint8_t dev_id, uint8_t queue_id,
 598                       const struct rte_event_queue_conf *queue_conf)
 599 {
 600         struct rte_eventdev *dev;
 601         struct rte_event_queue_conf def_conf;
 602
 603         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 604         dev = &rte_eventdevs[dev_id];
 605
 606         if (!is_valid_queue(dev, queue_id)) {
 607                 RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id);
 608                 return -EINVAL;
 609         }
 610
 611         /* Check nb_atomic_flows limit */
 612         if (is_valid_atomic_queue_conf(queue_conf)) {
 613                 if (queue_conf->nb_atomic_flows == 0 ||
 614                     queue_conf->nb_atomic_flows >
 615                         dev->data->dev_conf.nb_event_queue_flows) {
 616                         RTE_EDEV_LOG_ERR(
 617                 "dev%d queue%d Invalid nb_atomic_flows=%d max_flows=%d",
 618                         dev_id, queue_id, queue_conf->nb_atomic_flows,
 619                         dev->data->dev_conf.nb_event_queue_flows);
 620                         return -EINVAL;
 621                 }
 622         }
 623
 624         /* Check nb_atomic_order_sequences limit */
 625         if (is_valid_ordered_queue_conf(queue_conf)) {
 626                 if (queue_conf->nb_atomic_order_sequences == 0 ||
 627                     queue_conf->nb_atomic_order_sequences >
 628                         dev->data->dev_conf.nb_event_queue_flows) {
 629                         RTE_EDEV_LOG_ERR(
 630                 "dev%d queue%d Invalid nb_atomic_order_seq=%d max_flows=%d",
 631                         dev_id, queue_id, queue_conf->nb_atomic_order_sequences,
 632                         dev->data->dev_conf.nb_event_queue_flows);
 633                         return -EINVAL;
 634                 }
 635         }
 636
 637         if (dev->data->dev_started) {
 638                 RTE_EDEV_LOG_ERR(
 639                     "device %d must be stopped to allow queue setup", dev_id);
 640                 return -EBUSY;
 641         }
 642
 643         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_setup, -ENOTSUP);
 644
 645         if (queue_conf == NULL) {
 646                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_def_conf,
 647                                         -ENOTSUP);
 648                 (*dev->dev_ops->queue_def_conf)(dev, queue_id, &def_conf);
 649                 queue_conf = &def_conf;
 650         }
 651
 652         dev->data->queues_cfg[queue_id] = *queue_conf;
 653         return (*dev->dev_ops->queue_setup)(dev, queue_id, queue_conf);
 654 }
 655
 656 static inline int
 657 is_valid_port(struct rte_eventdev *dev, uint8_t port_id)
 658 {
 659         if (port_id < dev->data->nb_ports)
 660                 return 1;
 661         else
 662                 return 0;
 663 }
 664
 665 int
 666 rte_event_port_default_conf_get(uint8_t dev_id, uint8_t port_id,
 667                                  struct rte_event_port_conf *port_conf)
 668 {
 669         struct rte_eventdev *dev;
 670
 671         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 672         dev = &rte_eventdevs[dev_id];
 673
 674         if (port_conf == NULL)
 675                 return -EINVAL;
 676
 677         if (!is_valid_port(dev, port_id)) {
 678                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 679                 return -EINVAL;
 680         }
 681
 682         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_def_conf, -ENOTSUP);
 683         memset(port_conf, 0, sizeof(struct rte_event_port_conf));
 684         (*dev->dev_ops->port_def_conf)(dev, port_id, port_conf);
 685         return 0;
 686 }
 687
 688 int
 689 rte_event_port_setup(uint8_t dev_id, uint8_t port_id,
 690                      const struct rte_event_port_conf *port_conf)
 691 {
 692         struct rte_eventdev *dev;
 693         struct rte_event_port_conf def_conf;
 694         int diag;
 695
 696         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 697         dev = &rte_eventdevs[dev_id];
 698
 699         if (!is_valid_port(dev, port_id)) {
 700                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 701                 return -EINVAL;
 702         }
 703
 704         /* Check new_event_threshold limit */
 705         if ((port_conf && !port_conf->new_event_threshold) ||
 706                         (port_conf && port_conf->new_event_threshold >
 707                                  dev->data->dev_conf.nb_events_limit)) {
 708                 RTE_EDEV_LOG_ERR(
 709                    "dev%d port%d Invalid event_threshold=%d nb_events_limit=%d",
 710                         dev_id, port_id, port_conf->new_event_threshold,
 711                         dev->data->dev_conf.nb_events_limit);
 712                 return -EINVAL;
 713         }
 714
 715         /* Check dequeue_depth limit */
 716         if ((port_conf && !port_conf->dequeue_depth) ||
 717                         (port_conf && port_conf->dequeue_depth >
 718                 dev->data->dev_conf.nb_event_port_dequeue_depth)) {
 719                 RTE_EDEV_LOG_ERR(
 720                    "dev%d port%d Invalid dequeue depth=%d max_dequeue_depth=%d",
 721                         dev_id, port_id, port_conf->dequeue_depth,
 722                         dev->data->dev_conf.nb_event_port_dequeue_depth);
 723                 return -EINVAL;
 724         }
 725
 726         /* Check enqueue_depth limit */
 727         if ((port_conf && !port_conf->enqueue_depth) ||
 728                         (port_conf && port_conf->enqueue_depth >
 729                 dev->data->dev_conf.nb_event_port_enqueue_depth)) {
 730                 RTE_EDEV_LOG_ERR(
 731                    "dev%d port%d Invalid enqueue depth=%d max_enqueue_depth=%d",
 732                         dev_id, port_id, port_conf->enqueue_depth,
 733                         dev->data->dev_conf.nb_event_port_enqueue_depth);
 734                 return -EINVAL;
 735         }
 736
 737         if (port_conf && port_conf->disable_implicit_release &&
 738             !(dev->data->event_dev_cap &
 739               RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)) {
 740                 RTE_EDEV_LOG_ERR(
 741                    "dev%d port%d Implicit release disable not supported",
 742                         dev_id, port_id);
 743                 return -EINVAL;
 744         }
 745
 746         if (dev->data->dev_started) {
 747                 RTE_EDEV_LOG_ERR(
 748                     "device %d must be stopped to allow port setup", dev_id);
 749                 return -EBUSY;
 750         }
 751
 752         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_setup, -ENOTSUP);
 753
 754         if (port_conf == NULL) {
 755                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_def_conf,
 756                                         -ENOTSUP);
 757                 (*dev->dev_ops->port_def_conf)(dev, port_id, &def_conf);
 758                 port_conf = &def_conf;
 759         }
 760
 761         dev->data->ports_cfg[port_id] = *port_conf;
 762
 763         diag = (*dev->dev_ops->port_setup)(dev, port_id, port_conf);
 764
 765         /* Unlink all the queues from this port(default state after setup) */
 766         if (!diag)
 767                 diag = rte_event_port_unlink(dev_id, port_id, NULL, 0);
 768
 769         if (diag < 0)
 770                 return diag;
 771
 772         return 0;
 773 }
 774
 775 int
 776 rte_event_dev_attr_get(uint8_t dev_id, uint32_t attr_id,
 777                        uint32_t *attr_value)
 778 {
 779         struct rte_eventdev *dev;
 780
 781         if (!attr_value)
 782                 return -EINVAL;
 783         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 784         dev = &rte_eventdevs[dev_id];
 785
 786         switch (attr_id) {
 787         case RTE_EVENT_DEV_ATTR_PORT_COUNT:
 788                 *attr_value = dev->data->nb_ports;
 789                 break;
 790         case RTE_EVENT_DEV_ATTR_QUEUE_COUNT:
 791                 *attr_value = dev->data->nb_queues;
 792                 break;
 793         case RTE_EVENT_DEV_ATTR_STARTED:
 794                 *attr_value = dev->data->dev_started;
 795                 break;
 796         default:
 797                 return -EINVAL;
 798         }
 799
 800         return 0;
 801 }
 802
 803 int
 804 rte_event_port_attr_get(uint8_t dev_id, uint8_t port_id, uint32_t attr_id,
 805                         uint32_t *attr_value)
 806 {
 807         struct rte_eventdev *dev;
 808
 809         if (!attr_value)
 810                 return -EINVAL;
 811
 812         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 813         dev = &rte_eventdevs[dev_id];
 814         if (!is_valid_port(dev, port_id)) {
 815                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 816                 return -EINVAL;
 817         }
 818
 819         switch (attr_id) {
 820         case RTE_EVENT_PORT_ATTR_ENQ_DEPTH:
 821                 *attr_value = dev->data->ports_cfg[port_id].enqueue_depth;
 822                 break;
 823         case RTE_EVENT_PORT_ATTR_DEQ_DEPTH:
 824                 *attr_value = dev->data->ports_cfg[port_id].dequeue_depth;
 825                 break;
 826         case RTE_EVENT_PORT_ATTR_NEW_EVENT_THRESHOLD:
 827                 *attr_value = dev->data->ports_cfg[port_id].new_event_threshold;
 828                 break;
 829         default:
 830                 return -EINVAL;
 831         };
 832         return 0;
 833 }
 834
 835 int
 836 rte_event_queue_attr_get(uint8_t dev_id, uint8_t queue_id, uint32_t attr_id,
 837                         uint32_t *attr_value)
 838 {
 839         struct rte_event_queue_conf *conf;
 840         struct rte_eventdev *dev;
 841
 842         if (!attr_value)
 843                 return -EINVAL;
 844
 845         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
 846         dev = &rte_eventdevs[dev_id];
 847         if (!is_valid_queue(dev, queue_id)) {
 848                 RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id);
 849                 return -EINVAL;
 850         }
 851
 852         conf = &dev->data->queues_cfg[queue_id];
 853
 854         switch (attr_id) {
 855         case RTE_EVENT_QUEUE_ATTR_PRIORITY:
 856                 *attr_value = RTE_EVENT_DEV_PRIORITY_NORMAL;
 857                 if (dev->data->event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_QOS)
 858                         *attr_value = conf->priority;
 859                 break;
 860         case RTE_EVENT_QUEUE_ATTR_NB_ATOMIC_FLOWS:
 861                 *attr_value = conf->nb_atomic_flows;
 862                 break;
 863         case RTE_EVENT_QUEUE_ATTR_NB_ATOMIC_ORDER_SEQUENCES:
 864                 *attr_value = conf->nb_atomic_order_sequences;
 865                 break;
 866         case RTE_EVENT_QUEUE_ATTR_EVENT_QUEUE_CFG:
 867                 *attr_value = conf->event_queue_cfg;
 868                 break;
 869         case RTE_EVENT_QUEUE_ATTR_SCHEDULE_TYPE:
 870                 if (conf->event_queue_cfg & RTE_EVENT_QUEUE_CFG_ALL_TYPES)
 871                         return -EOVERFLOW;
 872
 873                 *attr_value = conf->schedule_type;
 874                 break;
 875         default:
 876                 return -EINVAL;
 877         };
 878         return 0;
 879 }
 880
 881 int
 882 rte_event_port_link(uint8_t dev_id, uint8_t port_id,
 883                     const uint8_t queues[], const uint8_t priorities[],
 884                     uint16_t nb_links)
 885 {
 886         struct rte_eventdev *dev;
 887         uint8_t queues_list[RTE_EVENT_MAX_QUEUES_PER_DEV];
 888         uint8_t priorities_list[RTE_EVENT_MAX_QUEUES_PER_DEV];
 889         uint16_t *links_map;
 890         int i, diag;
 891
 892         RTE_EVENTDEV_VALID_DEVID_OR_ERRNO_RET(dev_id, EINVAL, 0);
 893         dev = &rte_eventdevs[dev_id];
 894
 895         if (*dev->dev_ops->port_link == NULL) {
 896                 RTE_EDEV_LOG_ERR("Function not supported\n");
 897                 rte_errno = ENOTSUP;
 898                 return 0;
 899         }
 900
 901         if (!is_valid_port(dev, port_id)) {
 902                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 903                 rte_errno = EINVAL;
 904                 return 0;
 905         }
 906
 907         if (queues == NULL) {
 908                 for (i = 0; i < dev->data->nb_queues; i++)
 909                         queues_list[i] = i;
 910
 911                 queues = queues_list;
 912                 nb_links = dev->data->nb_queues;
 913         }
 914
 915         if (priorities == NULL) {
 916                 for (i = 0; i < nb_links; i++)
 917                         priorities_list[i] = RTE_EVENT_DEV_PRIORITY_NORMAL;
 918
 919                 priorities = priorities_list;
 920         }
 921
 922         for (i = 0; i < nb_links; i++)
 923                 if (queues[i] >= dev->data->nb_queues) {
 924                         rte_errno = EINVAL;
 925                         return 0;
 926                 }
 927
 928         diag = (*dev->dev_ops->port_link)(dev, dev->data->ports[port_id],
 929                                                 queues, priorities, nb_links);
 930         if (diag < 0)
 931                 return diag;
 932
 933         links_map = dev->data->links_map;
 934         /* Point links_map to this port specific area */
 935         links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV);
 936         for (i = 0; i < diag; i++)
 937                 links_map[queues[i]] = (uint8_t)priorities[i];
 938
 939         return diag;
 940 }
 941
 942 int
 943 rte_event_port_unlink(uint8_t dev_id, uint8_t port_id,
 944                       uint8_t queues[], uint16_t nb_unlinks)
 945 {
 946         struct rte_eventdev *dev;
 947         uint8_t all_queues[RTE_EVENT_MAX_QUEUES_PER_DEV];
 948         int i, diag, j;
 949         uint16_t *links_map;
 950
 951         RTE_EVENTDEV_VALID_DEVID_OR_ERRNO_RET(dev_id, EINVAL, 0);
 952         dev = &rte_eventdevs[dev_id];
 953
 954         if (*dev->dev_ops->port_unlink == NULL) {
 955                 RTE_EDEV_LOG_ERR("Function not supported");
 956                 rte_errno = ENOTSUP;
 957                 return 0;
 958         }
 959
 960         if (!is_valid_port(dev, port_id)) {
 961                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
 962                 rte_errno = EINVAL;
 963                 return 0;
 964         }
 965
 966         links_map = dev->data->links_map;
 967         /* Point links_map to this port specific area */
 968         links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV);
 969
 970         if (queues == NULL) {
 971                 j = 0;
 972                 for (i = 0; i < dev->data->nb_queues; i++) {
 973                         if (links_map[i] !=
 974                                         EVENT_QUEUE_SERVICE_PRIORITY_INVALID) {
 975                                 all_queues[j] = i;
 976                                 j++;
 977                         }
 978                 }
 979                 queues = all_queues;
 980         } else {
 981                 for (j = 0; j < nb_unlinks; j++) {
 982                         if (links_map[queues[j]] ==
 983                                         EVENT_QUEUE_SERVICE_PRIORITY_INVALID)
 984                                 break;
 985                 }
 986         }
 987
 988         nb_unlinks = j;
 989         for (i = 0; i < nb_unlinks; i++)
 990                 if (queues[i] >= dev->data->nb_queues) {
 991                         rte_errno = EINVAL;
 992                         return 0;
 993                 }
 994
 995         diag = (*dev->dev_ops->port_unlink)(dev, dev->data->ports[port_id],
 996                                         queues, nb_unlinks);
 997
 998         if (diag < 0)
 999                 return diag;
1000
1001         for (i = 0; i < diag; i++)
1002                 links_map[queues[i]] = EVENT_QUEUE_SERVICE_PRIORITY_INVALID;
1003
1004         return diag;
1005 }
1006
1007 int
1008 rte_event_port_unlinks_in_progress(uint8_t dev_id, uint8_t port_id)
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         if (!is_valid_port(dev, port_id)) {
1015                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
1016                 return -EINVAL;
1017         }
1018
1019         /* Return 0 if the PMD does not implement unlinks in progress.
1020          * This allows PMDs which handle unlink synchronously to not implement
1021          * this function at all.
1022          */
1023         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_unlinks_in_progress, 0);
1024
1025         return (*dev->dev_ops->port_unlinks_in_progress)(dev,
1026                         dev->data->ports[port_id]);
1027 }
1028
1029 int
1030 rte_event_port_links_get(uint8_t dev_id, uint8_t port_id,
1031                          uint8_t queues[], uint8_t priorities[])
1032 {
1033         struct rte_eventdev *dev;
1034         uint16_t *links_map;
1035         int i, count = 0;
1036
1037         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1038         dev = &rte_eventdevs[dev_id];
1039         if (!is_valid_port(dev, port_id)) {
1040                 RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id);
1041                 return -EINVAL;
1042         }
1043
1044         links_map = dev->data->links_map;
1045         /* Point links_map to this port specific area */
1046         links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV);
1047         for (i = 0; i < dev->data->nb_queues; i++) {
1048                 if (links_map[i] != EVENT_QUEUE_SERVICE_PRIORITY_INVALID) {
1049                         queues[count] = i;
1050                         priorities[count] = (uint8_t)links_map[i];
1051                         ++count;
1052                 }
1053         }
1054         return count;
1055 }
1056
1057 int
1058 rte_event_dequeue_timeout_ticks(uint8_t dev_id, uint64_t ns,
1059                                  uint64_t *timeout_ticks)
1060 {
1061         struct rte_eventdev *dev;
1062
1063         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1064         dev = &rte_eventdevs[dev_id];
1065         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->timeout_ticks, -ENOTSUP);
1066
1067         if (timeout_ticks == NULL)
1068                 return -EINVAL;
1069
1070         return (*dev->dev_ops->timeout_ticks)(dev, ns, timeout_ticks);
1071 }
1072
1073 int
1074 rte_event_dev_service_id_get(uint8_t dev_id, uint32_t *service_id)
1075 {
1076         struct rte_eventdev *dev;
1077
1078         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1079         dev = &rte_eventdevs[dev_id];
1080
1081         if (service_id == NULL)
1082                 return -EINVAL;
1083
1084         if (dev->data->service_inited)
1085                 *service_id = dev->data->service_id;
1086
1087         return dev->data->service_inited ? 0 : -ESRCH;
1088 }
1089
1090 int
1091 rte_event_dev_dump(uint8_t dev_id, FILE *f)
1092 {
1093         struct rte_eventdev *dev;
1094
1095         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1096         dev = &rte_eventdevs[dev_id];
1097         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dump, -ENOTSUP);
1098
1099         (*dev->dev_ops->dump)(dev, f);
1100         return 0;
1101
1102 }
1103
1104 static int
1105 xstats_get_count(uint8_t dev_id, enum rte_event_dev_xstats_mode mode,
1106                 uint8_t queue_port_id)
1107 {
1108         struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1109         if (dev->dev_ops->xstats_get_names != NULL)
1110                 return (*dev->dev_ops->xstats_get_names)(dev, mode,
1111                                                         queue_port_id,
1112                                                         NULL, NULL, 0);
1113         return 0;
1114 }
1115
1116 int
1117 rte_event_dev_xstats_names_get(uint8_t dev_id,
1118                 enum rte_event_dev_xstats_mode mode, uint8_t queue_port_id,
1119                 struct rte_event_dev_xstats_name *xstats_names,
1120                 unsigned int *ids, unsigned int size)
1121 {
1122         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV);
1123         const int cnt_expected_entries = xstats_get_count(dev_id, mode,
1124                                                           queue_port_id);
1125         if (xstats_names == NULL || cnt_expected_entries < 0 ||
1126                         (int)size < cnt_expected_entries)
1127                 return cnt_expected_entries;
1128
1129         /* dev_id checked above */
1130         const struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1131
1132         if (dev->dev_ops->xstats_get_names != NULL)
1133                 return (*dev->dev_ops->xstats_get_names)(dev, mode,
1134                                 queue_port_id, xstats_names, ids, size);
1135
1136         return -ENOTSUP;
1137 }
1138
1139 /* retrieve eventdev extended statistics */
1140 int
1141 rte_event_dev_xstats_get(uint8_t dev_id, enum rte_event_dev_xstats_mode mode,
1142                 uint8_t queue_port_id, const unsigned int ids[],
1143                 uint64_t values[], unsigned int n)
1144 {
1145         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV);
1146         const struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1147
1148         /* implemented by the driver */
1149         if (dev->dev_ops->xstats_get != NULL)
1150                 return (*dev->dev_ops->xstats_get)(dev, mode, queue_port_id,
1151                                 ids, values, n);
1152         return -ENOTSUP;
1153 }
1154
1155 uint64_t
1156 rte_event_dev_xstats_by_name_get(uint8_t dev_id, const char *name,
1157                 unsigned int *id)
1158 {
1159         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, 0);
1160         const struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1161         unsigned int temp = -1;
1162
1163         if (id != NULL)
1164                 *id = (unsigned int)-1;
1165         else
1166                 id = &temp; /* ensure driver never gets a NULL value */
1167
1168         /* implemented by driver */
1169         if (dev->dev_ops->xstats_get_by_name != NULL)
1170                 return (*dev->dev_ops->xstats_get_by_name)(dev, name, id);
1171         return -ENOTSUP;
1172 }
1173
1174 int rte_event_dev_xstats_reset(uint8_t dev_id,
1175                 enum rte_event_dev_xstats_mode mode, int16_t queue_port_id,
1176                 const uint32_t ids[], uint32_t nb_ids)
1177 {
1178         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1179         struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1180
1181         if (dev->dev_ops->xstats_reset != NULL)
1182                 return (*dev->dev_ops->xstats_reset)(dev, mode, queue_port_id,
1183                                                         ids, nb_ids);
1184         return -ENOTSUP;
1185 }
1186
1187 int rte_event_dev_selftest(uint8_t dev_id)
1188 {
1189         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1190         struct rte_eventdev *dev = &rte_eventdevs[dev_id];
1191
1192         if (dev->dev_ops->dev_selftest != NULL)
1193                 return (*dev->dev_ops->dev_selftest)();
1194         return -ENOTSUP;
1195 }
1196
1197 int
1198 rte_event_dev_start(uint8_t dev_id)
1199 {
1200         struct rte_eventdev *dev;
1201         int diag;
1202
1203         RTE_EDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);
1204
1205         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1206         dev = &rte_eventdevs[dev_id];
1207         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
1208
1209         if (dev->data->dev_started != 0) {
1210                 RTE_EDEV_LOG_ERR("Device with dev_id=%" PRIu8 "already started",
1211                         dev_id);
1212                 return 0;
1213         }
1214
1215         diag = (*dev->dev_ops->dev_start)(dev);
1216         if (diag == 0)
1217                 dev->data->dev_started = 1;
1218         else
1219                 return diag;
1220
1221         return 0;
1222 }
1223
1224 int
1225 rte_event_dev_stop_flush_callback_register(uint8_t dev_id,
1226                 eventdev_stop_flush_t callback, void *userdata)
1227 {
1228         struct rte_eventdev *dev;
1229
1230         RTE_EDEV_LOG_DEBUG("Stop flush register dev_id=%" PRIu8, dev_id);
1231
1232         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1233         dev = &rte_eventdevs[dev_id];
1234
1235         dev->dev_ops->dev_stop_flush = callback;
1236         dev->data->dev_stop_flush_arg = userdata;
1237
1238         return 0;
1239 }
1240
1241 void
1242 rte_event_dev_stop(uint8_t dev_id)
1243 {
1244         struct rte_eventdev *dev;
1245
1246         RTE_EDEV_LOG_DEBUG("Stop dev_id=%" PRIu8, dev_id);
1247
1248         RTE_EVENTDEV_VALID_DEVID_OR_RET(dev_id);
1249         dev = &rte_eventdevs[dev_id];
1250         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
1251
1252         if (dev->data->dev_started == 0) {
1253                 RTE_EDEV_LOG_ERR("Device with dev_id=%" PRIu8 "already stopped",
1254                         dev_id);
1255                 return;
1256         }
1257
1258         dev->data->dev_started = 0;
1259         (*dev->dev_ops->dev_stop)(dev);
1260 }
1261
1262 int
1263 rte_event_dev_close(uint8_t dev_id)
1264 {
1265         struct rte_eventdev *dev;
1266
1267         RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1268         dev = &rte_eventdevs[dev_id];
1269         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
1270
1271         /* Device must be stopped before it can be closed */
1272         if (dev->data->dev_started == 1) {
1273                 RTE_EDEV_LOG_ERR("Device %u must be stopped before closing",
1274                                 dev_id);
1275                 return -EBUSY;
1276         }
1277
1278         return (*dev->dev_ops->dev_close)(dev);
1279 }
1280
1281 static inline int
1282 rte_eventdev_data_alloc(uint8_t dev_id, struct rte_eventdev_data **data,
1283                 int socket_id)
1284 {
1285         char mz_name[RTE_EVENTDEV_NAME_MAX_LEN];
1286         const struct rte_memzone *mz;
1287         int n;
1288
1289         /* Generate memzone name */
1290         n = snprintf(mz_name, sizeof(mz_name), "rte_eventdev_data_%u", dev_id);
1291         if (n >= (int)sizeof(mz_name))
1292                 return -EINVAL;
1293
1294         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
1295                 mz = rte_memzone_reserve(mz_name,
1296                                 sizeof(struct rte_eventdev_data),
1297                                 socket_id, 0);
1298         } else
1299                 mz = rte_memzone_lookup(mz_name);
1300
1301         if (mz == NULL)
1302                 return -ENOMEM;
1303
1304         *data = mz->addr;
1305         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
1306                 memset(*data, 0, sizeof(struct rte_eventdev_data));
1307
1308         return 0;
1309 }
1310
1311 static inline uint8_t
1312 rte_eventdev_find_free_device_index(void)
1313 {
1314         uint8_t dev_id;
1315
1316         for (dev_id = 0; dev_id < RTE_EVENT_MAX_DEVS; dev_id++) {
1317                 if (rte_eventdevs[dev_id].attached ==
1318                                 RTE_EVENTDEV_DETACHED)
1319                         return dev_id;
1320         }
1321         return RTE_EVENT_MAX_DEVS;
1322 }
1323
1324 static uint16_t
1325 rte_event_tx_adapter_enqueue(__rte_unused void *port,
1326                         __rte_unused struct rte_event ev[],
1327                         __rte_unused uint16_t nb_events)
1328 {
1329         rte_errno = ENOTSUP;
1330         return 0;
1331 }
1332
1333 struct rte_eventdev *
1334 rte_event_pmd_allocate(const char *name, int socket_id)
1335 {
1336         struct rte_eventdev *eventdev;
1337         uint8_t dev_id;
1338
1339         if (rte_event_pmd_get_named_dev(name) != NULL) {
1340                 RTE_EDEV_LOG_ERR("Event device with name %s already "
1341                                 "allocated!", name);
1342                 return NULL;
1343         }
1344
1345         dev_id = rte_eventdev_find_free_device_index();
1346         if (dev_id == RTE_EVENT_MAX_DEVS) {
1347                 RTE_EDEV_LOG_ERR("Reached maximum number of event devices");
1348                 return NULL;
1349         }
1350
1351         eventdev = &rte_eventdevs[dev_id];
1352
1353         eventdev->txa_enqueue = rte_event_tx_adapter_enqueue;
1354         eventdev->txa_enqueue_same_dest = rte_event_tx_adapter_enqueue;
1355
1356         if (eventdev->data == NULL) {
1357                 struct rte_eventdev_data *eventdev_data = NULL;
1358
1359                 int retval = rte_eventdev_data_alloc(dev_id, &eventdev_data,
1360                                 socket_id);
1361
1362                 if (retval < 0 || eventdev_data == NULL)
1363                         return NULL;
1364
1365                 eventdev->data = eventdev_data;
1366
1367                 strlcpy(eventdev->data->name, name, RTE_EVENTDEV_NAME_MAX_LEN);
1368
1369                 eventdev->data->dev_id = dev_id;
1370                 eventdev->data->socket_id = socket_id;
1371                 eventdev->data->dev_started = 0;
1372
1373                 eventdev->attached = RTE_EVENTDEV_ATTACHED;
1374
1375                 eventdev_globals.nb_devs++;
1376         }
1377
1378         return eventdev;
1379 }
1380
1381 int
1382 rte_event_pmd_release(struct rte_eventdev *eventdev)
1383 {
1384         int ret;
1385         char mz_name[RTE_EVENTDEV_NAME_MAX_LEN];
1386         const struct rte_memzone *mz;
1387
1388         if (eventdev == NULL)
1389                 return -EINVAL;
1390
1391         eventdev->attached = RTE_EVENTDEV_DETACHED;
1392         eventdev_globals.nb_devs--;
1393
1394         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
1395                 rte_free(eventdev->data->dev_private);
1396
1397                 /* Generate memzone name */
1398                 ret = snprintf(mz_name, sizeof(mz_name), "rte_eventdev_data_%u",
1399                                 eventdev->data->dev_id);
1400                 if (ret >= (int)sizeof(mz_name))
1401                         return -EINVAL;
1402
1403                 mz = rte_memzone_lookup(mz_name);
1404                 if (mz == NULL)
1405                         return -ENOMEM;
1406
1407                 ret = rte_memzone_free(mz);
1408                 if (ret)
1409                         return ret;
1410         }
1411
1412         eventdev->data = NULL;
1413         return 0;
1414 }