lib/librte_compressdev/rte_compressdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017-2018 Intel Corporation
   3  */
   4
   5 #include <string.h>
   6 #include <stdarg.h>
   7 #include <stdio.h>
   8 #include <inttypes.h>
   9
  10 #include <rte_malloc.h>
  11 #include <rte_eal.h>
  12 #include <rte_memzone.h>
  13
  14 #include "rte_compressdev.h"
  15 #include "rte_compressdev_internal.h"
  16 #include "rte_compressdev_pmd.h"
  17
  18 #define RTE_COMPRESSDEV_DETACHED  (0)
  19 #define RTE_COMPRESSDEV_ATTACHED  (1)
  20
  21 static struct rte_compressdev rte_comp_devices[RTE_COMPRESS_MAX_DEVS];
  22
  23 static struct rte_compressdev_global compressdev_globals = {
  24                 .devs                   = rte_comp_devices,
  25                 .data                   = { NULL },
  26                 .nb_devs                = 0,
  27                 .max_devs               = RTE_COMPRESS_MAX_DEVS
  28 };
  29
  30 const struct rte_compressdev_capabilities * __rte_experimental
  31 rte_compressdev_capability_get(uint8_t dev_id,
  32                         enum rte_comp_algorithm algo)
  33 {
  34         const struct rte_compressdev_capabilities *capability;
  35         struct rte_compressdev_info dev_info;
  36         int i = 0;
  37
  38         if (dev_id >= compressdev_globals.nb_devs) {
  39                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%d", dev_id);
  40                 return NULL;
  41         }
  42         rte_compressdev_info_get(dev_id, &dev_info);
  43
  44         while ((capability = &dev_info.capabilities[i++])->algo !=
  45                         RTE_COMP_ALGO_UNSPECIFIED){
  46                 if (capability->algo == algo)
  47                         return capability;
  48         }
  49
  50         return NULL;
  51 }
  52
  53 const char * __rte_experimental
  54 rte_compressdev_get_feature_name(uint64_t flag)
  55 {
  56         switch (flag) {
  57         case RTE_COMPDEV_FF_HW_ACCELERATED:
  58                 return "HW_ACCELERATED";
  59         case RTE_COMPDEV_FF_CPU_SSE:
  60                 return "CPU_SSE";
  61         case RTE_COMPDEV_FF_CPU_AVX:
  62                 return "CPU_AVX";
  63         case RTE_COMPDEV_FF_CPU_AVX2:
  64                 return "CPU_AVX2";
  65         case RTE_COMPDEV_FF_CPU_AVX512:
  66                 return "CPU_AVX512";
  67         case RTE_COMPDEV_FF_CPU_NEON:
  68                 return "CPU_NEON";
  69         case RTE_COMPDEV_FF_OP_DONE_IN_DEQUEUE:
  70                 return "OP_DONE_IN_DEQ";
  71         default:
  72                 return NULL;
  73         }
  74 }
  75
  76 static struct rte_compressdev *
  77 rte_compressdev_get_dev(uint8_t dev_id)
  78 {
  79         return &compressdev_globals.devs[dev_id];
  80 }
  81
  82 struct rte_compressdev * __rte_experimental
  83 rte_compressdev_pmd_get_named_dev(const char *name)
  84 {
  85         struct rte_compressdev *dev;
  86         unsigned int i;
  87
  88         if (name == NULL)
  89                 return NULL;
  90
  91         for (i = 0; i < compressdev_globals.max_devs; i++) {
  92                 dev = &compressdev_globals.devs[i];
  93
  94                 if ((dev->attached == RTE_COMPRESSDEV_ATTACHED) &&
  95                                 (strcmp(dev->data->name, name) == 0))
  96                         return dev;
  97         }
  98
  99         return NULL;
 100 }
 101
 102 static unsigned int
 103 rte_compressdev_is_valid_dev(uint8_t dev_id)
 104 {
 105         struct rte_compressdev *dev = NULL;
 106
 107         if (dev_id >= compressdev_globals.nb_devs)
 108                 return 0;
 109
 110         dev = rte_compressdev_get_dev(dev_id);
 111         if (dev->attached != RTE_COMPRESSDEV_ATTACHED)
 112                 return 0;
 113         else
 114                 return 1;
 115 }
 116
 117
 118 int __rte_experimental
 119 rte_compressdev_get_dev_id(const char *name)
 120 {
 121         unsigned int i;
 122
 123         if (name == NULL)
 124                 return -1;
 125
 126         for (i = 0; i < compressdev_globals.nb_devs; i++)
 127                 if ((strcmp(compressdev_globals.devs[i].data->name, name)
 128                                 == 0) &&
 129                                 (compressdev_globals.devs[i].attached ==
 130                                                 RTE_COMPRESSDEV_ATTACHED))
 131                         return i;
 132
 133         return -1;
 134 }
 135
 136 uint8_t __rte_experimental
 137 rte_compressdev_count(void)
 138 {
 139         return compressdev_globals.nb_devs;
 140 }
 141
 142 uint8_t __rte_experimental
 143 rte_compressdev_devices_get(const char *driver_name, uint8_t *devices,
 144         uint8_t nb_devices)
 145 {
 146         uint8_t i, count = 0;
 147         struct rte_compressdev *devs = compressdev_globals.devs;
 148         uint8_t max_devs = compressdev_globals.max_devs;
 149
 150         for (i = 0; i < max_devs && count < nb_devices; i++) {
 151
 152                 if (devs[i].attached == RTE_COMPRESSDEV_ATTACHED) {
 153                         int cmp;
 154
 155                         cmp = strncmp(devs[i].device->driver->name,
 156                                         driver_name,
 157                                         strlen(driver_name));
 158
 159                         if (cmp == 0)
 160                                 devices[count++] = devs[i].data->dev_id;
 161                 }
 162         }
 163
 164         return count;
 165 }
 166
 167 int __rte_experimental
 168 rte_compressdev_socket_id(uint8_t dev_id)
 169 {
 170         struct rte_compressdev *dev;
 171
 172         if (!rte_compressdev_is_valid_dev(dev_id))
 173                 return -1;
 174
 175         dev = rte_compressdev_get_dev(dev_id);
 176
 177         return dev->data->socket_id;
 178 }
 179
 180 static inline int
 181 rte_compressdev_data_alloc(uint8_t dev_id, struct rte_compressdev_data **data,
 182                 int socket_id)
 183 {
 184         char mz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
 185         const struct rte_memzone *mz;
 186         int n;
 187
 188         /* generate memzone name */
 189         n = snprintf(mz_name, sizeof(mz_name),
 190                         "rte_compressdev_data_%u", dev_id);
 191         if (n >= (int)sizeof(mz_name))
 192                 return -EINVAL;
 193
 194         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 195                 mz = rte_memzone_reserve(mz_name,
 196                                 sizeof(struct rte_compressdev_data),
 197                                 socket_id, 0);
 198         } else
 199                 mz = rte_memzone_lookup(mz_name);
 200
 201         if (mz == NULL)
 202                 return -ENOMEM;
 203
 204         *data = mz->addr;
 205         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 206                 memset(*data, 0, sizeof(struct rte_compressdev_data));
 207
 208         return 0;
 209 }
 210
 211 static uint8_t
 212 rte_compressdev_find_free_device_index(void)
 213 {
 214         uint8_t dev_id;
 215
 216         for (dev_id = 0; dev_id < RTE_COMPRESS_MAX_DEVS; dev_id++) {
 217                 if (rte_comp_devices[dev_id].attached ==
 218                                 RTE_COMPRESSDEV_DETACHED)
 219                         return dev_id;
 220         }
 221         return RTE_COMPRESS_MAX_DEVS;
 222 }
 223
 224 struct rte_compressdev * __rte_experimental
 225 rte_compressdev_pmd_allocate(const char *name, int socket_id)
 226 {
 227         struct rte_compressdev *compressdev;
 228         uint8_t dev_id;
 229
 230         if (rte_compressdev_pmd_get_named_dev(name) != NULL) {
 231                 COMPRESSDEV_LOG(ERR,
 232                         "comp device with name %s already allocated!", name);
 233                 return NULL;
 234         }
 235
 236         dev_id = rte_compressdev_find_free_device_index();
 237         if (dev_id == RTE_COMPRESS_MAX_DEVS) {
 238                 COMPRESSDEV_LOG(ERR, "Reached maximum number of comp devices");
 239                 return NULL;
 240         }
 241         compressdev = rte_compressdev_get_dev(dev_id);
 242
 243         if (compressdev->data == NULL) {
 244                 struct rte_compressdev_data *compressdev_data =
 245                                 compressdev_globals.data[dev_id];
 246
 247                 int retval = rte_compressdev_data_alloc(dev_id,
 248                                 &compressdev_data, socket_id);
 249
 250                 if (retval < 0 || compressdev_data == NULL)
 251                         return NULL;
 252
 253                 compressdev->data = compressdev_data;
 254
 255                 snprintf(compressdev->data->name, RTE_COMPRESSDEV_NAME_MAX_LEN,
 256                                 "%s", name);
 257
 258                 compressdev->data->dev_id = dev_id;
 259                 compressdev->data->socket_id = socket_id;
 260                 compressdev->data->dev_started = 0;
 261
 262                 compressdev->attached = RTE_COMPRESSDEV_ATTACHED;
 263
 264                 compressdev_globals.nb_devs++;
 265         }
 266
 267         return compressdev;
 268 }
 269
 270 int __rte_experimental
 271 rte_compressdev_pmd_release_device(struct rte_compressdev *compressdev)
 272 {
 273         int ret;
 274
 275         if (compressdev == NULL)
 276                 return -EINVAL;
 277
 278         /* Close device only if device operations have been set */
 279         if (compressdev->dev_ops) {
 280                 ret = rte_compressdev_close(compressdev->data->dev_id);
 281                 if (ret < 0)
 282                         return ret;
 283         }
 284
 285         compressdev->attached = RTE_COMPRESSDEV_DETACHED;
 286         compressdev_globals.nb_devs--;
 287         return 0;
 288 }
 289
 290 uint16_t __rte_experimental
 291 rte_compressdev_queue_pair_count(uint8_t dev_id)
 292 {
 293         struct rte_compressdev *dev;
 294
 295         dev = &rte_comp_devices[dev_id];
 296         return dev->data->nb_queue_pairs;
 297 }
 298
 299 static int
 300 rte_compressdev_queue_pairs_config(struct rte_compressdev *dev,
 301                 uint16_t nb_qpairs, int socket_id)
 302 {
 303         struct rte_compressdev_info dev_info;
 304         void **qp;
 305         unsigned int i;
 306
 307         if ((dev == NULL) || (nb_qpairs < 1)) {
 308                 COMPRESSDEV_LOG(ERR, "invalid param: dev %p, nb_queues %u",
 309                                                         dev, nb_qpairs);
 310                 return -EINVAL;
 311         }
 312
 313         COMPRESSDEV_LOG(DEBUG, "Setup %d queues pairs on device %u",
 314                         nb_qpairs, dev->data->dev_id);
 315
 316         memset(&dev_info, 0, sizeof(struct rte_compressdev_info));
 317
 318         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
 319         (*dev->dev_ops->dev_infos_get)(dev, &dev_info);
 320
 321         if ((dev_info.max_nb_queue_pairs != 0) &&
 322                         (nb_qpairs > dev_info.max_nb_queue_pairs)) {
 323                 COMPRESSDEV_LOG(ERR, "Invalid num queue_pairs (%u) for dev %u",
 324                                 nb_qpairs, dev->data->dev_id);
 325                 return -EINVAL;
 326         }
 327
 328         if (dev->data->queue_pairs == NULL) { /* first time configuration */
 329                 dev->data->queue_pairs = rte_zmalloc_socket(
 330                                 "compressdev->queue_pairs",
 331                                 sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
 332                                 RTE_CACHE_LINE_SIZE, socket_id);
 333
 334                 if (dev->data->queue_pairs == NULL) {
 335                         dev->data->nb_queue_pairs = 0;
 336                         COMPRESSDEV_LOG(ERR,
 337                         "failed to get memory for qp meta data, nb_queues %u",
 338                                                         nb_qpairs);
 339                         return -(ENOMEM);
 340                 }
 341         } else { /* re-configure */
 342                 int ret;
 343                 uint16_t old_nb_queues = dev->data->nb_queue_pairs;
 344
 345                 qp = dev->data->queue_pairs;
 346
 347                 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 348                                 -ENOTSUP);
 349
 350                 for (i = nb_qpairs; i < old_nb_queues; i++) {
 351                         ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 352                         if (ret < 0)
 353                                 return ret;
 354                 }
 355
 356                 qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
 357                                 RTE_CACHE_LINE_SIZE);
 358                 if (qp == NULL) {
 359                         COMPRESSDEV_LOG(ERR,
 360                         "failed to realloc qp meta data, nb_queues %u",
 361                                                 nb_qpairs);
 362                         return -(ENOMEM);
 363                 }
 364
 365                 if (nb_qpairs > old_nb_queues) {
 366                         uint16_t new_qs = nb_qpairs - old_nb_queues;
 367
 368                         memset(qp + old_nb_queues, 0,
 369                                 sizeof(qp[0]) * new_qs);
 370                 }
 371
 372                 dev->data->queue_pairs = qp;
 373
 374         }
 375         dev->data->nb_queue_pairs = nb_qpairs;
 376         return 0;
 377 }
 378
 379 static int
 380 rte_compressdev_queue_pairs_release(struct rte_compressdev *dev)
 381 {
 382         uint16_t num_qps, i;
 383         int ret;
 384
 385         if (dev == NULL) {
 386                 COMPRESSDEV_LOG(ERR, "invalid param: dev %p", dev);
 387                 return -EINVAL;
 388         }
 389
 390         num_qps = dev->data->nb_queue_pairs;
 391
 392         if (num_qps == 0)
 393                 return 0;
 394
 395         COMPRESSDEV_LOG(DEBUG, "Free %d queues pairs on device %u",
 396                         dev->data->nb_queue_pairs, dev->data->dev_id);
 397
 398         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
 399                                 -ENOTSUP);
 400
 401         for (i = 0; i < num_qps; i++) {
 402                 ret = (*dev->dev_ops->queue_pair_release)(dev, i);
 403                 if (ret < 0)
 404                         return ret;
 405         }
 406
 407         if (dev->data->queue_pairs != NULL)
 408                 rte_free(dev->data->queue_pairs);
 409         dev->data->queue_pairs = NULL;
 410         dev->data->nb_queue_pairs = 0;
 411
 412         return 0;
 413 }
 414
 415 int __rte_experimental
 416 rte_compressdev_configure(uint8_t dev_id, struct rte_compressdev_config *config)
 417 {
 418         struct rte_compressdev *dev;
 419         int diag;
 420
 421         if (!rte_compressdev_is_valid_dev(dev_id)) {
 422                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
 423                 return -EINVAL;
 424         }
 425
 426         dev = &rte_comp_devices[dev_id];
 427
 428         if (dev->data->dev_started) {
 429                 COMPRESSDEV_LOG(ERR,
 430                     "device %d must be stopped to allow configuration", dev_id);
 431                 return -EBUSY;
 432         }
 433
 434         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
 435
 436         /* Setup new number of queue pairs and reconfigure device. */
 437         diag = rte_compressdev_queue_pairs_config(dev, config->nb_queue_pairs,
 438                         config->socket_id);
 439         if (diag != 0) {
 440                 COMPRESSDEV_LOG(ERR,
 441                         "dev%d rte_comp_dev_queue_pairs_config = %d",
 442                                 dev_id, diag);
 443                 return diag;
 444         }
 445
 446         return (*dev->dev_ops->dev_configure)(dev, config);
 447 }
 448
 449 int __rte_experimental
 450 rte_compressdev_start(uint8_t dev_id)
 451 {
 452         struct rte_compressdev *dev;
 453         int diag;
 454
 455         COMPRESSDEV_LOG(DEBUG, "Start dev_id=%" PRIu8, dev_id);
 456
 457         if (!rte_compressdev_is_valid_dev(dev_id)) {
 458                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
 459                 return -EINVAL;
 460         }
 461
 462         dev = &rte_comp_devices[dev_id];
 463
 464         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);
 465
 466         if (dev->data->dev_started != 0) {
 467                 COMPRESSDEV_LOG(ERR,
 468                     "Device with dev_id=%" PRIu8 " already started", dev_id);
 469                 return 0;
 470         }
 471
 472         diag = (*dev->dev_ops->dev_start)(dev);
 473         if (diag == 0)
 474                 dev->data->dev_started = 1;
 475         else
 476                 return diag;
 477
 478         return 0;
 479 }
 480
 481 void __rte_experimental
 482 rte_compressdev_stop(uint8_t dev_id)
 483 {
 484         struct rte_compressdev *dev;
 485
 486         if (!rte_compressdev_is_valid_dev(dev_id)) {
 487                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
 488                 return;
 489         }
 490
 491         dev = &rte_comp_devices[dev_id];
 492
 493         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);
 494
 495         if (dev->data->dev_started == 0) {
 496                 COMPRESSDEV_LOG(ERR,
 497                     "Device with dev_id=%" PRIu8 " already stopped", dev_id);
 498                 return;
 499         }
 500
 501         (*dev->dev_ops->dev_stop)(dev);
 502         dev->data->dev_started = 0;
 503 }
 504
 505 int __rte_experimental
 506 rte_compressdev_close(uint8_t dev_id)
 507 {
 508         struct rte_compressdev *dev;
 509         int retval;
 510
 511         if (!rte_compressdev_is_valid_dev(dev_id)) {
 512                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
 513                 return -1;
 514         }
 515
 516         dev = &rte_comp_devices[dev_id];
 517
 518         /* Device must be stopped before it can be closed */
 519         if (dev->data->dev_started == 1) {
 520                 COMPRESSDEV_LOG(ERR, "Device %u must be stopped before closing",
 521                                 dev_id);
 522                 return -EBUSY;
 523         }
 524
 525         /* Free queue pairs memory */
 526         retval = rte_compressdev_queue_pairs_release(dev);
 527
 528         if (retval < 0)
 529                 return retval;
 530
 531         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
 532         retval = (*dev->dev_ops->dev_close)(dev);
 533
 534         if (retval < 0)
 535                 return retval;
 536
 537         return 0;
 538 }
 539
 540 int __rte_experimental
 541 rte_compressdev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
 542                 uint32_t max_inflight_ops, int socket_id)
 543 {
 544         struct rte_compressdev *dev;
 545
 546         if (!rte_compressdev_is_valid_dev(dev_id)) {
 547                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
 548                 return -EINVAL;
 549         }
 550
 551         dev = &rte_comp_devices[dev_id];
 552         if (queue_pair_id >= dev->data->nb_queue_pairs) {
 553                 COMPRESSDEV_LOG(ERR, "Invalid queue_pair_id=%d", queue_pair_id);
 554                 return -EINVAL;
 555         }
 556
 557         if (dev->data->dev_started) {
 558                 COMPRESSDEV_LOG(ERR,
 559                     "device %d must be stopped to allow configuration", dev_id);
 560                 return -EBUSY;
 561         }
 562
 563         if (max_inflight_ops == 0) {
 564                 COMPRESSDEV_LOG(ERR,
 565                         "Invalid maximum number of inflight operations");
 566                 return -EINVAL;
 567         }
 568
 569         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);
 570
 571         return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id,
 572                         max_inflight_ops, socket_id);
 573 }
 574
 575 uint16_t __rte_experimental
 576 rte_compressdev_dequeue_burst(uint8_t dev_id, uint16_t qp_id,
 577                 struct rte_comp_op **ops, uint16_t nb_ops)
 578 {
 579         struct rte_compressdev *dev = &rte_comp_devices[dev_id];
 580
 581         nb_ops = (*dev->dequeue_burst)
 582                         (dev->data->queue_pairs[qp_id], ops, nb_ops);
 583
 584         return nb_ops;
 585 }
 586
 587 uint16_t __rte_experimental
 588 rte_compressdev_enqueue_burst(uint8_t dev_id, uint16_t qp_id,
 589                 struct rte_comp_op **ops, uint16_t nb_ops)
 590 {
 591         struct rte_compressdev *dev = &rte_comp_devices[dev_id];
 592
 593         return (*dev->enqueue_burst)(
 594                         dev->data->queue_pairs[qp_id], ops, nb_ops);
 595 }
 596
 597 int __rte_experimental
 598 rte_compressdev_stats_get(uint8_t dev_id, struct rte_compressdev_stats *stats)
 599 {
 600         struct rte_compressdev *dev;
 601
 602         if (!rte_compressdev_is_valid_dev(dev_id)) {
 603                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%d", dev_id);
 604                 return -ENODEV;
 605         }
 606
 607         if (stats == NULL) {
 608                 COMPRESSDEV_LOG(ERR, "Invalid stats ptr");
 609                 return -EINVAL;
 610         }
 611
 612         dev = &rte_comp_devices[dev_id];
 613         memset(stats, 0, sizeof(*stats));
 614
 615         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
 616         (*dev->dev_ops->stats_get)(dev, stats);
 617         return 0;
 618 }
 619
 620 void __rte_experimental
 621 rte_compressdev_stats_reset(uint8_t dev_id)
 622 {
 623         struct rte_compressdev *dev;
 624
 625         if (!rte_compressdev_is_valid_dev(dev_id)) {
 626                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%" PRIu8, dev_id);
 627                 return;
 628         }
 629
 630         dev = &rte_comp_devices[dev_id];
 631
 632         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
 633         (*dev->dev_ops->stats_reset)(dev);
 634 }
 635
 636
 637 void __rte_experimental
 638 rte_compressdev_info_get(uint8_t dev_id, struct rte_compressdev_info *dev_info)
 639 {
 640         struct rte_compressdev *dev;
 641
 642         if (dev_id >= compressdev_globals.nb_devs) {
 643                 COMPRESSDEV_LOG(ERR, "Invalid dev_id=%d", dev_id);
 644                 return;
 645         }
 646
 647         dev = &rte_comp_devices[dev_id];
 648
 649         memset(dev_info, 0, sizeof(struct rte_compressdev_info));
 650
 651         RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
 652         (*dev->dev_ops->dev_infos_get)(dev, dev_info);
 653
 654         dev_info->driver_name = dev->device->driver->name;
 655 }
 656
 657 int __rte_experimental
 658 rte_compressdev_private_xform_create(uint8_t dev_id,
 659                 const struct rte_comp_xform *xform,
 660                 void **priv_xform)
 661 {
 662         struct rte_compressdev *dev;
 663         int ret;
 664
 665         dev = rte_compressdev_get_dev(dev_id);
 666
 667         if (xform == NULL || priv_xform == NULL || dev == NULL)
 668                 return -EINVAL;
 669
 670         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->private_xform_create, -ENOTSUP);
 671         ret = (*dev->dev_ops->private_xform_create)(dev, xform, priv_xform);
 672         if (ret < 0) {
 673                 COMPRESSDEV_LOG(ERR,
 674                         "dev_id %d failed to create private_xform: err=%d",
 675                         dev_id, ret);
 676                 return ret;
 677         };
 678
 679         return 0;
 680 }
 681
 682 int __rte_experimental
 683 rte_compressdev_private_xform_free(uint8_t dev_id, void *priv_xform)
 684 {
 685         struct rte_compressdev *dev;
 686         int ret;
 687
 688         dev = rte_compressdev_get_dev(dev_id);
 689
 690         if (dev == NULL || priv_xform == NULL)
 691                 return -EINVAL;
 692
 693         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->private_xform_free, -ENOTSUP);
 694         ret = dev->dev_ops->private_xform_free(dev, priv_xform);
 695         if (ret < 0) {
 696                 COMPRESSDEV_LOG(ERR,
 697                         "dev_id %d failed to free private xform: err=%d",
 698                         dev_id, ret);
 699                 return ret;
 700         };
 701
 702         return 0;
 703 }
 704
 705 int __rte_experimental
 706 rte_compressdev_stream_create(uint8_t dev_id,
 707                 const struct rte_comp_xform *xform,
 708                 void **stream)
 709 {
 710         struct rte_compressdev *dev;
 711         int ret;
 712
 713         dev = rte_compressdev_get_dev(dev_id);
 714
 715         if (xform == NULL || dev == NULL || stream == NULL)
 716                 return -EINVAL;
 717
 718         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stream_create, -ENOTSUP);
 719         ret = (*dev->dev_ops->stream_create)(dev, xform, stream);
 720         if (ret < 0) {
 721                 COMPRESSDEV_LOG(ERR,
 722                         "dev_id %d failed to create stream: err=%d",
 723                         dev_id, ret);
 724                 return ret;
 725         };
 726
 727         return 0;
 728 }
 729
 730
 731 int __rte_experimental
 732 rte_compressdev_stream_free(uint8_t dev_id, void *stream)
 733 {
 734         struct rte_compressdev *dev;
 735         int ret;
 736
 737         dev = rte_compressdev_get_dev(dev_id);
 738
 739         if (dev == NULL || stream == NULL)
 740                 return -EINVAL;
 741
 742         RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stream_free, -ENOTSUP);
 743         ret = dev->dev_ops->stream_free(dev, stream);
 744         if (ret < 0) {
 745                 COMPRESSDEV_LOG(ERR,
 746                         "dev_id %d failed to free stream: err=%d",
 747                         dev_id, ret);
 748                 return ret;
 749         };
 750
 751         return 0;
 752 }
 753
 754 const char * __rte_experimental
 755 rte_compressdev_name_get(uint8_t dev_id)
 756 {
 757         struct rte_compressdev *dev = rte_compressdev_get_dev(dev_id);
 758
 759         if (dev == NULL)
 760                 return NULL;
 761
 762         return dev->data->name;
 763 }
 764
 765 RTE_INIT(rte_compressdev_log)
 766 {
 767         compressdev_logtype = rte_log_register("lib.compressdev");
 768         if (compressdev_logtype >= 0)
 769                 rte_log_set_level(compressdev_logtype, RTE_LOG_NOTICE);
 770 }