drivers/compress/qat/qat_comp_pmd.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2018 Intel Corporation
   3  */
   4
   5 #include "qat_comp.h"
   6 #include "qat_comp_pmd.h"
   7
   8 static const struct rte_compressdev_capabilities qat_comp_gen_capabilities[] = {
   9         {/* COMPRESSION - deflate */
  10          .algo = RTE_COMP_ALGO_DEFLATE,
  11          .comp_feature_flags = RTE_COMP_FF_MULTI_PKT_CHECKSUM |
  12                                 RTE_COMP_FF_CRC32_CHECKSUM |
  13                                 RTE_COMP_FF_ADLER32_CHECKSUM |
  14                                 RTE_COMP_FF_CRC32_ADLER32_CHECKSUM |
  15                                 RTE_COMP_FF_SHAREABLE_PRIV_XFORM |
  16                                 RTE_COMP_FF_HUFFMAN_FIXED |
  17                                 RTE_COMP_FF_HUFFMAN_DYNAMIC |
  18                                 RTE_COMP_FF_OOP_SGL_IN_SGL_OUT |
  19                                 RTE_COMP_FF_OOP_SGL_IN_LB_OUT |
  20                                 RTE_COMP_FF_OOP_LB_IN_SGL_OUT,
  21          .window_size = {.min = 15, .max = 15, .increment = 0} },
  22         {RTE_COMP_ALGO_LIST_END, 0, {0, 0, 0} } };
  23
  24 static void
  25 qat_comp_stats_get(struct rte_compressdev *dev,
  26                 struct rte_compressdev_stats *stats)
  27 {
  28         struct qat_common_stats qat_stats = {0};
  29         struct qat_comp_dev_private *qat_priv;
  30
  31         if (stats == NULL || dev == NULL) {
  32                 QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev);
  33                 return;
  34         }
  35         qat_priv = dev->data->dev_private;
  36
  37         qat_stats_get(qat_priv->qat_dev, &qat_stats, QAT_SERVICE_COMPRESSION);
  38         stats->enqueued_count = qat_stats.enqueued_count;
  39         stats->dequeued_count = qat_stats.dequeued_count;
  40         stats->enqueue_err_count = qat_stats.enqueue_err_count;
  41         stats->dequeue_err_count = qat_stats.dequeue_err_count;
  42 }
  43
  44 static void
  45 qat_comp_stats_reset(struct rte_compressdev *dev)
  46 {
  47         struct qat_comp_dev_private *qat_priv;
  48
  49         if (dev == NULL) {
  50                 QAT_LOG(ERR, "invalid compressdev ptr %p", dev);
  51                 return;
  52         }
  53         qat_priv = dev->data->dev_private;
  54
  55         qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_COMPRESSION);
  56
  57 }
  58
  59 static int
  60 qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_id)
  61 {
  62         struct qat_comp_dev_private *qat_private = dev->data->dev_private;
  63
  64         QAT_LOG(DEBUG, "Release comp qp %u on device %d",
  65                                 queue_pair_id, dev->data->dev_id);
  66
  67         qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][queue_pair_id]
  68                                                 = NULL;
  69
  70         return qat_qp_release((struct qat_qp **)
  71                         &(dev->data->queue_pairs[queue_pair_id]));
  72 }
  73
  74 static int
  75 qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
  76                   uint32_t max_inflight_ops, int socket_id)
  77 {
  78         struct qat_qp *qp;
  79         int ret = 0;
  80         uint32_t i;
  81         struct qat_qp_config qat_qp_conf;
  82
  83         struct qat_qp **qp_addr =
  84                         (struct qat_qp **)&(dev->data->queue_pairs[qp_id]);
  85         struct qat_comp_dev_private *qat_private = dev->data->dev_private;
  86         const struct qat_qp_hw_data *comp_hw_qps =
  87                         qat_gen_config[qat_private->qat_dev->qat_dev_gen]
  88                                       .qp_hw_data[QAT_SERVICE_COMPRESSION];
  89         const struct qat_qp_hw_data *qp_hw_data = comp_hw_qps + qp_id;
  90
  91         /* If qp is already in use free ring memory and qp metadata. */
  92         if (*qp_addr != NULL) {
  93                 ret = qat_comp_qp_release(dev, qp_id);
  94                 if (ret < 0)
  95                         return ret;
  96         }
  97         if (qp_id >= qat_qps_per_service(comp_hw_qps,
  98                                          QAT_SERVICE_COMPRESSION)) {
  99                 QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
 100                 return -EINVAL;
 101         }
 102
 103         qat_qp_conf.hw = qp_hw_data;
 104         qat_qp_conf.build_request = qat_comp_build_request;
 105         qat_qp_conf.cookie_size = sizeof(struct qat_comp_op_cookie);
 106         qat_qp_conf.nb_descriptors = max_inflight_ops;
 107         qat_qp_conf.socket_id = socket_id;
 108         qat_qp_conf.service_str = "comp";
 109
 110         ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf);
 111         if (ret != 0)
 112                 return ret;
 113
 114         /* store a link to the qp in the qat_pci_device */
 115         qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][qp_id]
 116                                                                 = *qp_addr;
 117
 118         qp = (struct qat_qp *)*qp_addr;
 119
 120         for (i = 0; i < qp->nb_descriptors; i++) {
 121
 122                 struct qat_comp_op_cookie *cookie =
 123                                 qp->op_cookies[i];
 124
 125                 cookie->qat_sgl_src_phys_addr =
 126                                 rte_mempool_virt2iova(cookie) +
 127                                 offsetof(struct qat_comp_op_cookie,
 128                                 qat_sgl_src);
 129
 130                 cookie->qat_sgl_dst_phys_addr =
 131                                 rte_mempool_virt2iova(cookie) +
 132                                 offsetof(struct qat_comp_op_cookie,
 133                                 qat_sgl_dst);
 134         }
 135
 136         return ret;
 137 }
 138
 139
 140 #define QAT_IM_BUFFER_DEBUG 0
 141 static const struct rte_memzone *
 142 qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev,
 143                               uint32_t buff_size)
 144 {
 145         char inter_buff_mz_name[RTE_MEMZONE_NAMESIZE];
 146         const struct rte_memzone *memzone;
 147         uint8_t *mz_start = NULL;
 148         rte_iova_t mz_start_phys = 0;
 149         struct array_of_ptrs *array_of_pointers;
 150         int size_of_ptr_array;
 151         uint32_t full_size;
 152         uint32_t offset_of_sgls, offset_of_flat_buffs = 0;
 153         int i;
 154         int num_im_sgls = qat_gen_config[
 155                 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required;
 156
 157         QAT_LOG(DEBUG, "QAT COMP device %s needs %d sgls",
 158                                 comp_dev->qat_dev->name, num_im_sgls);
 159         snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE,
 160                                 "%s_inter_buff", comp_dev->qat_dev->name);
 161         memzone = rte_memzone_lookup(inter_buff_mz_name);
 162         if (memzone != NULL) {
 163                 QAT_LOG(DEBUG, "QAT COMP im buffer memzone created already");
 164                 return memzone;
 165         }
 166
 167         /* Create a memzone to hold intermediate buffers and associated
 168          * meta-data needed by the firmware. The memzone contains:
 169          *  - a list of num_im_sgls physical pointers to sgls
 170          *  - the num_im_sgl sgl structures, each pointing to 2 flat buffers
 171          *  - the flat buffers: num_im_sgl * 2
 172          * where num_im_sgls depends on the hardware generation of the device
 173          */
 174
 175         size_of_ptr_array = num_im_sgls * sizeof(phys_addr_t);
 176         offset_of_sgls = (size_of_ptr_array + (~QAT_64_BYTE_ALIGN_MASK))
 177                         & QAT_64_BYTE_ALIGN_MASK;
 178         offset_of_flat_buffs =
 179             offset_of_sgls + num_im_sgls * sizeof(struct qat_inter_sgl);
 180         full_size = offset_of_flat_buffs +
 181                         num_im_sgls * buff_size * QAT_NUM_BUFS_IN_IM_SGL;
 182
 183         memzone = rte_memzone_reserve_aligned(inter_buff_mz_name, full_size,
 184                         comp_dev->compressdev->data->socket_id,
 185                         RTE_MEMZONE_2MB, QAT_64_BYTE_ALIGN);
 186         if (memzone == NULL) {
 187                 QAT_LOG(ERR, "Can't allocate intermediate buffers"
 188                                 " for device %s", comp_dev->qat_dev->name);
 189                 return NULL;
 190         }
 191
 192         mz_start = (uint8_t *)memzone->addr;
 193         mz_start_phys = memzone->phys_addr;
 194         QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64
 195                         ", size required %d, size created %zu",
 196                         inter_buff_mz_name, mz_start, mz_start_phys,
 197                         full_size, memzone->len);
 198
 199         array_of_pointers = (struct array_of_ptrs *)mz_start;
 200         for (i = 0; i < num_im_sgls; i++) {
 201                 uint32_t curr_sgl_offset =
 202                     offset_of_sgls + i * sizeof(struct qat_inter_sgl);
 203                 struct qat_inter_sgl *sgl =
 204                     (struct qat_inter_sgl *)(mz_start + curr_sgl_offset);
 205                 array_of_pointers->pointer[i] = mz_start_phys + curr_sgl_offset;
 206
 207                 sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL;
 208                 sgl->num_mapped_bufs = 0;
 209                 sgl->resrvd = 0;
 210                 sgl->buffers[0].addr = mz_start_phys + offset_of_flat_buffs +
 211                         ((i * QAT_NUM_BUFS_IN_IM_SGL) * buff_size);
 212                 sgl->buffers[0].len = buff_size;
 213                 sgl->buffers[0].resrvd = 0;
 214                 sgl->buffers[1].addr = mz_start_phys + offset_of_flat_buffs +
 215                         (((i * QAT_NUM_BUFS_IN_IM_SGL) + 1) * buff_size);
 216                 sgl->buffers[1].len = buff_size;
 217                 sgl->buffers[1].resrvd = 0;
 218
 219 #if QAT_IM_BUFFER_DEBUG
 220                 QAT_LOG(DEBUG, "  : phys addr of sgl[%i] in array_of_pointers"
 221                             "= 0x%"PRIx64, i, array_of_pointers->pointer[i]);
 222                 QAT_LOG(DEBUG, "  : virt address of sgl[%i] = %p", i, sgl);
 223                 QAT_LOG(DEBUG, "  : sgl->buffers[0].addr = 0x%"PRIx64", len=%d",
 224                         sgl->buffers[0].addr, sgl->buffers[0].len);
 225                 QAT_LOG(DEBUG, "  : sgl->buffers[1].addr = 0x%"PRIx64", len=%d",
 226                         sgl->buffers[1].addr, sgl->buffers[1].len);
 227 #endif
 228                 }
 229 #if QAT_IM_BUFFER_DEBUG
 230         QAT_DP_HEXDUMP_LOG(DEBUG,  "IM buffer memzone start:",
 231                         mz_start, offset_of_flat_buffs + 32);
 232 #endif
 233         return memzone;
 234 }
 235
 236 static struct rte_mempool *
 237 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
 238                               uint32_t num_elements)
 239 {
 240         char xform_pool_name[RTE_MEMPOOL_NAMESIZE];
 241         struct rte_mempool *mp;
 242
 243         snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE,
 244                         "%s_xforms", comp_dev->qat_dev->name);
 245
 246         QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name);
 247         mp = rte_mempool_lookup(xform_pool_name);
 248
 249         if (mp != NULL) {
 250                 QAT_LOG(DEBUG, "xformpool already created");
 251                 if (mp->size != num_elements) {
 252                         QAT_LOG(DEBUG, "xformpool wrong size - delete it");
 253                         rte_mempool_free(mp);
 254                         mp = NULL;
 255                         comp_dev->xformpool = NULL;
 256                 }
 257         }
 258
 259         if (mp == NULL)
 260                 mp = rte_mempool_create(xform_pool_name,
 261                                 num_elements,
 262                                 qat_comp_xform_size(), 0, 0,
 263                                 NULL, NULL, NULL, NULL, rte_socket_id(),
 264                                 0);
 265         if (mp == NULL) {
 266                 QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d",
 267                         xform_pool_name, num_elements, qat_comp_xform_size());
 268                 return NULL;
 269         }
 270
 271         return mp;
 272 }
 273
 274 static void
 275 _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
 276 {
 277         /* Free intermediate buffers */
 278         if (comp_dev->interm_buff_mz) {
 279                 rte_memzone_free(comp_dev->interm_buff_mz);
 280                 comp_dev->interm_buff_mz = NULL;
 281         }
 282
 283         /* Free private_xform pool */
 284         if (comp_dev->xformpool) {
 285                 /* Free internal mempool for private xforms */
 286                 rte_mempool_free(comp_dev->xformpool);
 287                 comp_dev->xformpool = NULL;
 288         }
 289 }
 290
 291 static int
 292 qat_comp_dev_config(struct rte_compressdev *dev,
 293                 struct rte_compressdev_config *config)
 294 {
 295         struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
 296         int ret = 0;
 297
 298         if (config->max_nb_streams != 0) {
 299                 QAT_LOG(ERR,
 300         "QAT device does not support STATEFUL so max_nb_streams must be 0");
 301                 return -EINVAL;
 302         }
 303
 304         if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) {
 305                 QAT_LOG(WARNING,
 306                         "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so"
 307                         " QAT device can't be used for Dynamic Deflate. "
 308                         "Did you really intend to do this?");
 309         } else {
 310                 comp_dev->interm_buff_mz =
 311                                 qat_comp_setup_inter_buffers(comp_dev,
 312                                         RTE_PMD_QAT_COMP_IM_BUFFER_SIZE);
 313                 if (comp_dev->interm_buff_mz == NULL) {
 314                         ret = -ENOMEM;
 315                         goto error_out;
 316                 }
 317         }
 318
 319         comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev,
 320                                         config->max_nb_priv_xforms);
 321         if (comp_dev->xformpool == NULL) {
 322
 323                 ret = -ENOMEM;
 324                 goto error_out;
 325         }
 326         return 0;
 327
 328 error_out:
 329         _qat_comp_dev_config_clear(comp_dev);
 330         return ret;
 331 }
 332
 333 static int
 334 qat_comp_dev_start(struct rte_compressdev *dev __rte_unused)
 335 {
 336         return 0;
 337 }
 338
 339 static void
 340 qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused)
 341 {
 342
 343 }
 344
 345 static int
 346 qat_comp_dev_close(struct rte_compressdev *dev)
 347 {
 348         int i;
 349         int ret = 0;
 350         struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
 351
 352         for (i = 0; i < dev->data->nb_queue_pairs; i++) {
 353                 ret = qat_comp_qp_release(dev, i);
 354                 if (ret < 0)
 355                         return ret;
 356         }
 357
 358         _qat_comp_dev_config_clear(comp_dev);
 359
 360         return ret;
 361 }
 362
 363
 364 static void
 365 qat_comp_dev_info_get(struct rte_compressdev *dev,
 366                         struct rte_compressdev_info *info)
 367 {
 368         struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
 369         const struct qat_qp_hw_data *comp_hw_qps =
 370                 qat_gen_config[comp_dev->qat_dev->qat_dev_gen]
 371                               .qp_hw_data[QAT_SERVICE_COMPRESSION];
 372
 373         if (info != NULL) {
 374                 info->max_nb_queue_pairs =
 375                         qat_qps_per_service(comp_hw_qps,
 376                                             QAT_SERVICE_COMPRESSION);
 377                 info->feature_flags = dev->feature_flags;
 378                 info->capabilities = comp_dev->qat_dev_capabilities;
 379         }
 380 }
 381
 382 static uint16_t
 383 qat_comp_pmd_enqueue_op_burst(void *qp, struct rte_comp_op **ops,
 384                 uint16_t nb_ops)
 385 {
 386         return qat_enqueue_op_burst(qp, (void **)ops, nb_ops);
 387 }
 388
 389 static uint16_t
 390 qat_comp_pmd_dequeue_op_burst(void *qp, struct rte_comp_op **ops,
 391                               uint16_t nb_ops)
 392 {
 393         return qat_dequeue_op_burst(qp, (void **)ops, nb_ops);
 394 }
 395
 396 static uint16_t
 397 qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused,
 398                                     struct rte_comp_op **ops __rte_unused,
 399                                     uint16_t nb_ops __rte_unused)
 400 {
 401         QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !");
 402         return 0;
 403 }
 404
 405 static struct rte_compressdev_ops compress_qat_dummy_ops = {
 406
 407         /* Device related operations */
 408         .dev_configure          = NULL,
 409         .dev_start              = NULL,
 410         .dev_stop               = qat_comp_dev_stop,
 411         .dev_close              = qat_comp_dev_close,
 412         .dev_infos_get          = NULL,
 413
 414         .stats_get              = NULL,
 415         .stats_reset            = qat_comp_stats_reset,
 416         .queue_pair_setup       = NULL,
 417         .queue_pair_release     = qat_comp_qp_release,
 418
 419         /* Compression related operations */
 420         .private_xform_create   = NULL,
 421         .private_xform_free     = qat_comp_private_xform_free
 422 };
 423
 424 static uint16_t
 425 qat_comp_pmd_dequeue_frst_op_burst(void *qp, struct rte_comp_op **ops,
 426                                    uint16_t nb_ops)
 427 {
 428         uint16_t ret = qat_dequeue_op_burst(qp, (void **)ops, nb_ops);
 429         struct qat_qp *tmp_qp = (struct qat_qp *)qp;
 430
 431         if (ret) {
 432                 if ((*ops)->debug_status ==
 433                                 (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) {
 434                         tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst =
 435                                         qat_comp_pmd_enq_deq_dummy_op_burst;
 436                         tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
 437                                         qat_comp_pmd_enq_deq_dummy_op_burst;
 438
 439                         tmp_qp->qat_dev->comp_dev->compressdev->dev_ops =
 440                                         &compress_qat_dummy_ops;
 441                         QAT_LOG(ERR, "QAT PMD detected wrong FW version !");
 442
 443                 } else {
 444                         tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
 445                                         qat_comp_pmd_dequeue_op_burst;
 446                 }
 447         }
 448         return ret;
 449 }
 450
 451 static struct rte_compressdev_ops compress_qat_ops = {
 452
 453         /* Device related operations */
 454         .dev_configure          = qat_comp_dev_config,
 455         .dev_start              = qat_comp_dev_start,
 456         .dev_stop               = qat_comp_dev_stop,
 457         .dev_close              = qat_comp_dev_close,
 458         .dev_infos_get          = qat_comp_dev_info_get,
 459
 460         .stats_get              = qat_comp_stats_get,
 461         .stats_reset            = qat_comp_stats_reset,
 462         .queue_pair_setup       = qat_comp_qp_setup,
 463         .queue_pair_release     = qat_comp_qp_release,
 464
 465         /* Compression related operations */
 466         .private_xform_create   = qat_comp_private_xform_create,
 467         .private_xform_free     = qat_comp_private_xform_free
 468 };
 469
 470 /* An rte_driver is needed in the registration of the device with compressdev.
 471  * The actual qat pci's rte_driver can't be used as its name represents
 472  * the whole pci device with all services. Think of this as a holder for a name
 473  * for the compression part of the pci device.
 474  */
 475 static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD);
 476 static const struct rte_driver compdev_qat_driver = {
 477         .name = qat_comp_drv_name,
 478         .alias = qat_comp_drv_name
 479 };
 480 int
 481 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev)
 482 {
 483         if (qat_pci_dev->qat_dev_gen == QAT_GEN1) {
 484                 QAT_LOG(ERR, "Compression PMD not supported on QAT dh895xcc");
 485                 return 0;
 486         }
 487         if (qat_pci_dev->qat_dev_gen == QAT_GEN3) {
 488                 QAT_LOG(ERR, "Compression PMD not supported on QAT c4xxx");
 489                 return 0;
 490         }
 491
 492         struct rte_compressdev_pmd_init_params init_params = {
 493                 .name = "",
 494                 .socket_id = qat_pci_dev->pci_dev->device.numa_node,
 495         };
 496         char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
 497         struct rte_compressdev *compressdev;
 498         struct qat_comp_dev_private *comp_dev;
 499
 500         snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s",
 501                         qat_pci_dev->name, "comp");
 502         QAT_LOG(DEBUG, "Creating QAT COMP device %s", name);
 503
 504         /* Populate subset device to use in compressdev device creation */
 505         qat_pci_dev->comp_rte_dev.driver = &compdev_qat_driver;
 506         qat_pci_dev->comp_rte_dev.numa_node =
 507                                         qat_pci_dev->pci_dev->device.numa_node;
 508         qat_pci_dev->comp_rte_dev.devargs = NULL;
 509
 510         compressdev = rte_compressdev_pmd_create(name,
 511                         &(qat_pci_dev->comp_rte_dev),
 512                         sizeof(struct qat_comp_dev_private),
 513                         &init_params);
 514
 515         if (compressdev == NULL)
 516                 return -ENODEV;
 517
 518         compressdev->dev_ops = &compress_qat_ops;
 519
 520         compressdev->enqueue_burst = qat_comp_pmd_enqueue_op_burst;
 521         compressdev->dequeue_burst = qat_comp_pmd_dequeue_frst_op_burst;
 522
 523         compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED;
 524
 525         comp_dev = compressdev->data->dev_private;
 526         comp_dev->qat_dev = qat_pci_dev;
 527         comp_dev->compressdev = compressdev;
 528         qat_pci_dev->comp_dev = comp_dev;
 529
 530         switch (qat_pci_dev->qat_dev_gen) {
 531         case QAT_GEN1:
 532         case QAT_GEN2:
 533         case QAT_GEN3:
 534                 comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities;
 535                 break;
 536         default:
 537                 comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities;
 538                 QAT_LOG(DEBUG,
 539                         "QAT gen %d capabilities unknown, default to GEN1",
 540                                         qat_pci_dev->qat_dev_gen);
 541                 break;
 542         }
 543
 544         QAT_LOG(DEBUG,
 545                     "Created QAT COMP device %s as compressdev instance %d",
 546                         name, compressdev->data->dev_id);
 547         return 0;
 548 }
 549
 550 int
 551 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev)
 552 {
 553         struct qat_comp_dev_private *comp_dev;
 554
 555         if (qat_pci_dev == NULL)
 556                 return -ENODEV;
 557
 558         comp_dev = qat_pci_dev->comp_dev;
 559         if (comp_dev == NULL)
 560                 return 0;
 561
 562         /* clean up any resources used by the device */
 563         qat_comp_dev_close(comp_dev->compressdev);
 564
 565         rte_compressdev_pmd_destroy(comp_dev->compressdev);
 566         qat_pci_dev->comp_dev = NULL;
 567
 568         return 0;
 569 }