lib/librte_eventdev/rte_eventdev.c

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