drivers/compress/qat/qat_comp_pmd.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2022 Intel Corporation
   3  */
   4
   5 #include <rte_malloc.h>
   6
   7 #include "qat_comp.h"
   8 #include "qat_comp_pmd.h"
   9
  10 #define QAT_PMD_COMP_SGL_DEF_SEGMENTS 16
  11
  12 struct qat_comp_gen_dev_ops qat_comp_gen_dev_ops[QAT_N_GENS];
  13
  14 struct stream_create_info {
  15         struct qat_comp_dev_private *comp_dev;
  16         int socket_id;
  17         int error;
  18 };
  19
  20 static struct
  21 qat_comp_capabilities_info qat_comp_get_capa_info(
  22                 enum qat_device_gen qat_dev_gen, struct qat_pci_device *qat_dev)
  23 {
  24         struct qat_comp_capabilities_info ret = { .data = NULL, .size = 0 };
  25
  26         if (qat_dev_gen >= QAT_N_GENS)
  27                 return ret;
  28         RTE_FUNC_PTR_OR_ERR_RET(qat_comp_gen_dev_ops[qat_dev_gen]
  29                         .qat_comp_get_capabilities, ret);
  30         return qat_comp_gen_dev_ops[qat_dev_gen]
  31                         .qat_comp_get_capabilities(qat_dev);
  32 }
  33
  34 void
  35 qat_comp_stats_get(struct rte_compressdev *dev,
  36                 struct rte_compressdev_stats *stats)
  37 {
  38         struct qat_common_stats qat_stats = {0};
  39         struct qat_comp_dev_private *qat_priv;
  40
  41         if (stats == NULL || dev == NULL) {
  42                 QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev);
  43                 return;
  44         }
  45         qat_priv = dev->data->dev_private;
  46
  47         qat_stats_get(qat_priv->qat_dev, &qat_stats, QAT_SERVICE_COMPRESSION);
  48         stats->enqueued_count = qat_stats.enqueued_count;
  49         stats->dequeued_count = qat_stats.dequeued_count;
  50         stats->enqueue_err_count = qat_stats.enqueue_err_count;
  51         stats->dequeue_err_count = qat_stats.dequeue_err_count;
  52 }
  53
  54 void
  55 qat_comp_stats_reset(struct rte_compressdev *dev)
  56 {
  57         struct qat_comp_dev_private *qat_priv;
  58
  59         if (dev == NULL) {
  60                 QAT_LOG(ERR, "invalid compressdev ptr %p", dev);
  61                 return;
  62         }
  63         qat_priv = dev->data->dev_private;
  64
  65         qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_COMPRESSION);
  66
  67 }
  68
  69 int
  70 qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_id)
  71 {
  72         struct qat_comp_dev_private *qat_private = dev->data->dev_private;
  73         struct qat_qp **qp_addr =
  74                 (struct qat_qp **)&(dev->data->queue_pairs[queue_pair_id]);
  75         struct qat_qp *qp = (struct qat_qp *)*qp_addr;
  76         enum qat_device_gen qat_dev_gen = qat_private->qat_dev->qat_dev_gen;
  77         uint32_t i;
  78
  79         QAT_LOG(DEBUG, "Release comp qp %u on device %d",
  80                                 queue_pair_id, dev->data->dev_id);
  81
  82         qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][queue_pair_id]
  83                                                 = NULL;
  84
  85         if (qp != NULL)
  86                 for (i = 0; i < qp->nb_descriptors; i++) {
  87                         struct qat_comp_op_cookie *cookie = qp->op_cookies[i];
  88
  89                         rte_free(cookie->qat_sgl_src_d);
  90                         rte_free(cookie->qat_sgl_dst_d);
  91                 }
  92
  93         return qat_qp_release(qat_dev_gen, (struct qat_qp **)
  94                         &(dev->data->queue_pairs[queue_pair_id]));
  95 }
  96
  97 int
  98 qat_comp_qp_setup(struct rte_compressdev *dev, uint16_t qp_id,
  99                 uint32_t max_inflight_ops, int socket_id)
 100 {
 101         struct qat_qp_config qat_qp_conf = {0};
 102         struct qat_qp **qp_addr =
 103                         (struct qat_qp **)&(dev->data->queue_pairs[qp_id]);
 104         struct qat_comp_dev_private *qat_private = dev->data->dev_private;
 105         struct qat_pci_device *qat_dev = qat_private->qat_dev;
 106         struct qat_qp *qp;
 107         uint32_t i;
 108         int ret;
 109
 110         /* If qp is already in use free ring memory and qp metadata. */
 111         if (*qp_addr != NULL) {
 112                 ret = qat_comp_qp_release(dev, qp_id);
 113                 if (ret < 0)
 114                         return ret;
 115         }
 116         if (qp_id >= qat_qps_per_service(qat_dev,
 117                                          QAT_SERVICE_COMPRESSION)) {
 118                 QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
 119                 return -EINVAL;
 120         }
 121
 122
 123         qat_qp_conf.hw = qat_qp_get_hw_data(qat_dev, QAT_SERVICE_COMPRESSION,
 124                         qp_id);
 125         if (qat_qp_conf.hw == NULL) {
 126                 QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id);
 127                 return -EINVAL;
 128         }
 129         qat_qp_conf.cookie_size = sizeof(struct qat_comp_op_cookie);
 130         qat_qp_conf.nb_descriptors = max_inflight_ops;
 131         qat_qp_conf.socket_id = socket_id;
 132         qat_qp_conf.service_str = "comp";
 133
 134         ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf);
 135         if (ret != 0)
 136                 return ret;
 137         /* store a link to the qp in the qat_pci_device */
 138         qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][qp_id]
 139                                                                 = *qp_addr;
 140
 141         qp = (struct qat_qp *)*qp_addr;
 142         qp->min_enq_burst_threshold = qat_private->min_enq_burst_threshold;
 143
 144         for (i = 0; i < qp->nb_descriptors; i++) {
 145
 146                 struct qat_comp_op_cookie *cookie =
 147                                 qp->op_cookies[i];
 148
 149                 cookie->qp = qp;
 150                 cookie->cookie_index = i;
 151
 152                 cookie->qat_sgl_src_d = rte_zmalloc_socket(NULL,
 153                                         sizeof(struct qat_sgl) +
 154                                         sizeof(struct qat_flat_buf) *
 155                                         QAT_PMD_COMP_SGL_DEF_SEGMENTS,
 156                                         64, dev->data->socket_id);
 157
 158                 cookie->qat_sgl_dst_d = rte_zmalloc_socket(NULL,
 159                                         sizeof(struct qat_sgl) +
 160                                         sizeof(struct qat_flat_buf) *
 161                                         QAT_PMD_COMP_SGL_DEF_SEGMENTS,
 162                                         64, dev->data->socket_id);
 163
 164                 if (cookie->qat_sgl_src_d == NULL ||
 165                                 cookie->qat_sgl_dst_d == NULL) {
 166                         QAT_LOG(ERR, "Can't allocate SGL"
 167                                      " for device %s",
 168                                      qat_private->qat_dev->name);
 169                         return -ENOMEM;
 170                 }
 171
 172                 cookie->qat_sgl_src_phys_addr =
 173                                 rte_malloc_virt2iova(cookie->qat_sgl_src_d);
 174
 175                 cookie->qat_sgl_dst_phys_addr =
 176                                 rte_malloc_virt2iova(cookie->qat_sgl_dst_d);
 177
 178                 cookie->dst_nb_elems = cookie->src_nb_elems =
 179                                 QAT_PMD_COMP_SGL_DEF_SEGMENTS;
 180
 181                 cookie->socket_id = dev->data->socket_id;
 182
 183                 cookie->error = 0;
 184         }
 185
 186         return ret;
 187 }
 188
 189
 190 #define QAT_IM_BUFFER_DEBUG 0
 191 const struct rte_memzone *
 192 qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev,
 193                               uint32_t buff_size)
 194 {
 195         char inter_buff_mz_name[RTE_MEMZONE_NAMESIZE];
 196         const struct rte_memzone *memzone;
 197         uint8_t *mz_start = NULL;
 198         rte_iova_t mz_start_phys = 0;
 199         struct array_of_ptrs *array_of_pointers;
 200         int size_of_ptr_array;
 201         uint32_t full_size;
 202         uint32_t offset_of_flat_buffs;
 203         int i;
 204         int num_im_sgls = qat_comp_get_num_im_bufs_required(
 205                         comp_dev->qat_dev->qat_dev_gen);
 206
 207         QAT_LOG(DEBUG, "QAT COMP device %s needs %d sgls",
 208                                 comp_dev->qat_dev->name, num_im_sgls);
 209         snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE,
 210                                 "%s_inter_buff", comp_dev->qat_dev->name);
 211         memzone = rte_memzone_lookup(inter_buff_mz_name);
 212         if (memzone != NULL) {
 213                 QAT_LOG(DEBUG, "QAT COMP im buffer memzone created already");
 214                 return memzone;
 215         }
 216
 217         /* Create multiple memzones to hold intermediate buffers and associated
 218          * meta-data needed by the firmware.
 219          * The first memzone contains:
 220          *  - a list of num_im_sgls physical pointers to sgls
 221          * All other memzones contain:
 222          *  - the sgl structure, pointing to QAT_NUM_BUFS_IN_IM_SGL flat buffers
 223          *  - the flat buffers: QAT_NUM_BUFS_IN_IM_SGL buffers,
 224          *    each of buff_size
 225          * num_im_sgls depends on the hardware generation of the device
 226          * buff_size comes from the user via the config file
 227          */
 228
 229         size_of_ptr_array = num_im_sgls * sizeof(phys_addr_t);
 230         offset_of_flat_buffs = sizeof(struct qat_inter_sgl);
 231         full_size = offset_of_flat_buffs +
 232                         buff_size * QAT_NUM_BUFS_IN_IM_SGL;
 233
 234         memzone = rte_memzone_reserve_aligned(inter_buff_mz_name,
 235                         size_of_ptr_array,
 236                         comp_dev->compressdev->data->socket_id,
 237                         RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
 238         if (memzone == NULL) {
 239                 QAT_LOG(ERR,
 240                                 "Can't allocate intermediate buffers for device %s",
 241                                 comp_dev->qat_dev->name);
 242                 return NULL;
 243         }
 244
 245         mz_start = (uint8_t *)memzone->addr;
 246         mz_start_phys = memzone->iova;
 247         QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64
 248                         ", size required %d, size created %zu",
 249                         inter_buff_mz_name, mz_start, mz_start_phys,
 250                         size_of_ptr_array, memzone->len);
 251
 252         array_of_pointers = (struct array_of_ptrs *)mz_start;
 253         for (i = 0; i < num_im_sgls; i++) {
 254                 const struct rte_memzone *mz;
 255                 struct qat_inter_sgl *sgl;
 256                 int lb;
 257
 258                 snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE,
 259                                 "%s_inter_buff_%d", comp_dev->qat_dev->name, i);
 260                 mz = rte_memzone_lookup(inter_buff_mz_name);
 261                 if (mz == NULL) {
 262                         mz = rte_memzone_reserve_aligned(inter_buff_mz_name,
 263                                         full_size,
 264                                         comp_dev->compressdev->data->socket_id,
 265                                         RTE_MEMZONE_IOVA_CONTIG,
 266                                         QAT_64_BYTE_ALIGN);
 267                         if (mz == NULL) {
 268                                 QAT_LOG(ERR,
 269                                                 "Can't allocate intermediate buffers for device %s",
 270                                                 comp_dev->qat_dev->name);
 271                                 while (--i >= 0) {
 272                                         snprintf(inter_buff_mz_name,
 273                                                         RTE_MEMZONE_NAMESIZE,
 274                                                         "%s_inter_buff_%d",
 275                                                         comp_dev->qat_dev->name,
 276                                                         i);
 277                                         rte_memzone_free(
 278                                                         rte_memzone_lookup(
 279                                                         inter_buff_mz_name));
 280                                 }
 281                                 rte_memzone_free(memzone);
 282                                 return NULL;
 283                         }
 284                 }
 285
 286                 QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64
 287                                 ", size required %d, size created %zu",
 288                                 inter_buff_mz_name, mz->addr, mz->iova,
 289                                 full_size, mz->len);
 290
 291                 array_of_pointers->pointer[i] = mz->iova;
 292
 293                 sgl = (struct qat_inter_sgl *) mz->addr;
 294                 sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL;
 295                 sgl->num_mapped_bufs = 0;
 296                 sgl->resrvd = 0;
 297
 298 #if QAT_IM_BUFFER_DEBUG
 299                 QAT_LOG(DEBUG, "  : phys addr of sgl[%i] in array_of_pointers"
 300                         " = 0x%"PRIx64, i, array_of_pointers->pointer[i]);
 301                 QAT_LOG(DEBUG, "  : virt address of sgl[%i] = %p", i, sgl);
 302 #endif
 303                 for (lb = 0; lb < QAT_NUM_BUFS_IN_IM_SGL; lb++) {
 304                         sgl->buffers[lb].addr =
 305                                         mz->iova + offset_of_flat_buffs +
 306                                         lb * buff_size;
 307                         sgl->buffers[lb].len = buff_size;
 308                         sgl->buffers[lb].resrvd = 0;
 309 #if QAT_IM_BUFFER_DEBUG
 310                         QAT_LOG(DEBUG,
 311                           "  : sgl->buffers[%d].addr = 0x%"PRIx64", len=%d",
 312                           lb, sgl->buffers[lb].addr, sgl->buffers[lb].len);
 313 #endif
 314                 }
 315         }
 316 #if QAT_IM_BUFFER_DEBUG
 317         QAT_DP_HEXDUMP_LOG(DEBUG,  "IM buffer memzone start:",
 318                         memzone->addr, size_of_ptr_array);
 319 #endif
 320         return memzone;
 321 }
 322
 323 static struct rte_mempool *
 324 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev,
 325                            struct rte_compressdev_config *config,
 326                            uint32_t num_elements)
 327 {
 328         char xform_pool_name[RTE_MEMPOOL_NAMESIZE];
 329         struct rte_mempool *mp;
 330
 331         snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE,
 332                         "%s_xforms", comp_dev->qat_dev->name);
 333
 334         QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name);
 335         mp = rte_mempool_lookup(xform_pool_name);
 336
 337         if (mp != NULL) {
 338                 QAT_LOG(DEBUG, "xformpool already created");
 339                 if (mp->size != num_elements) {
 340                         QAT_LOG(DEBUG, "xformpool wrong size - delete it");
 341                         rte_mempool_free(mp);
 342                         mp = NULL;
 343                         comp_dev->xformpool = NULL;
 344                 }
 345         }
 346
 347         if (mp == NULL)
 348                 mp = rte_mempool_create(xform_pool_name,
 349                                 num_elements,
 350                                 qat_comp_xform_size(), 0, 0,
 351                                 NULL, NULL, NULL, NULL, config->socket_id,
 352                                 0);
 353         if (mp == NULL) {
 354                 QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d",
 355                         xform_pool_name, num_elements, qat_comp_xform_size());
 356                 return NULL;
 357         }
 358
 359         return mp;
 360 }
 361
 362 static void
 363 qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque,
 364                      void *obj, unsigned int obj_idx)
 365 {
 366         struct stream_create_info *info = opaque;
 367         struct qat_comp_stream *stream = obj;
 368         char mz_name[RTE_MEMZONE_NAMESIZE];
 369         const struct rte_memzone *memzone;
 370         struct qat_inter_sgl *ram_banks_desc;
 371
 372         /* find a memzone for RAM banks */
 373         snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks",
 374                  info->comp_dev->qat_dev->name, obj_idx);
 375         memzone = rte_memzone_lookup(mz_name);
 376         if (memzone == NULL) {
 377                 /* allocate a memzone for compression state and RAM banks */
 378                 memzone = rte_memzone_reserve_aligned(mz_name,
 379                         QAT_STATE_REGISTERS_MAX_SIZE
 380                                 + sizeof(struct qat_inter_sgl)
 381                                 + QAT_INFLATE_CONTEXT_SIZE,
 382                         info->socket_id,
 383                         RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN);
 384                 if (memzone == NULL) {
 385                         QAT_LOG(ERR,
 386                             "Can't allocate RAM banks for device %s, object %u",
 387                                 info->comp_dev->qat_dev->name, obj_idx);
 388                         info->error = -ENOMEM;
 389                         return;
 390                 }
 391         }
 392
 393         /* prepare the buffer list descriptor for RAM banks */
 394         ram_banks_desc = (struct qat_inter_sgl *)
 395                 (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE);
 396         ram_banks_desc->num_bufs = 1;
 397         ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE;
 398         ram_banks_desc->buffers[0].addr = memzone->iova
 399                         + QAT_STATE_REGISTERS_MAX_SIZE
 400                         + sizeof(struct qat_inter_sgl);
 401
 402         memset(stream, 0, qat_comp_stream_size());
 403         stream->memzone = memzone;
 404         stream->state_registers_decomp = memzone->addr;
 405         stream->state_registers_decomp_phys = memzone->iova;
 406         stream->inflate_context = ((uint8_t *) memzone->addr)
 407                         + QAT_STATE_REGISTERS_MAX_SIZE;
 408         stream->inflate_context_phys = memzone->iova
 409                         + QAT_STATE_REGISTERS_MAX_SIZE;
 410 }
 411
 412 static void
 413 qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused,
 414                         void *opaque __rte_unused, void *obj,
 415                         unsigned obj_idx __rte_unused)
 416 {
 417         struct qat_comp_stream *stream = obj;
 418
 419         rte_memzone_free(stream->memzone);
 420 }
 421
 422 static struct rte_mempool *
 423 qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev,
 424                             int socket_id,
 425                             uint32_t num_elements)
 426 {
 427         char stream_pool_name[RTE_MEMPOOL_NAMESIZE];
 428         struct rte_mempool *mp;
 429
 430         snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE,
 431                  "%s_streams", comp_dev->qat_dev->name);
 432
 433         QAT_LOG(DEBUG, "streampool: %s", stream_pool_name);
 434         mp = rte_mempool_lookup(stream_pool_name);
 435
 436         if (mp != NULL) {
 437                 QAT_LOG(DEBUG, "streampool already created");
 438                 if (mp->size != num_elements) {
 439                         QAT_LOG(DEBUG, "streampool wrong size - delete it");
 440                         rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
 441                         rte_mempool_free(mp);
 442                         mp = NULL;
 443                         comp_dev->streampool = NULL;
 444                 }
 445         }
 446
 447         if (mp == NULL) {
 448                 struct stream_create_info info = {
 449                         .comp_dev = comp_dev,
 450                         .socket_id = socket_id,
 451                         .error = 0
 452                 };
 453                 mp = rte_mempool_create(stream_pool_name,
 454                                 num_elements,
 455                                 qat_comp_stream_size(), 0, 0,
 456                                 NULL, NULL, qat_comp_stream_init, &info,
 457                                 socket_id, 0);
 458                 if (mp == NULL) {
 459                         QAT_LOG(ERR,
 460                              "Err creating mempool %s w %d elements of size %d",
 461                              stream_pool_name, num_elements,
 462                              qat_comp_stream_size());
 463                 } else if (info.error) {
 464                         rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL);
 465                         QAT_LOG(ERR,
 466                              "Destroying mempool %s as at least one element failed initialisation",
 467                              stream_pool_name);
 468                         rte_mempool_free(mp);
 469                         mp = NULL;
 470                 }
 471         }
 472
 473         return mp;
 474 }
 475
 476 static void
 477 _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev)
 478 {
 479         /* Free intermediate buffers */
 480         if (comp_dev->interm_buff_mz) {
 481                 char mz_name[RTE_MEMZONE_NAMESIZE];
 482                 int i = qat_comp_get_num_im_bufs_required(
 483                                 comp_dev->qat_dev->qat_dev_gen);
 484
 485                 while (--i >= 0) {
 486                         snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
 487                                         "%s_inter_buff_%d",
 488                                         comp_dev->qat_dev->name, i);
 489                         rte_memzone_free(rte_memzone_lookup(mz_name));
 490                 }
 491                 rte_memzone_free(comp_dev->interm_buff_mz);
 492                 comp_dev->interm_buff_mz = NULL;
 493         }
 494
 495         /* Free private_xform pool */
 496         if (comp_dev->xformpool) {
 497                 /* Free internal mempool for private xforms */
 498                 rte_mempool_free(comp_dev->xformpool);
 499                 comp_dev->xformpool = NULL;
 500         }
 501
 502         /* Free stream pool */
 503         if (comp_dev->streampool) {
 504                 rte_mempool_obj_iter(comp_dev->streampool,
 505                                      qat_comp_stream_destroy, NULL);
 506                 rte_mempool_free(comp_dev->streampool);
 507                 comp_dev->streampool = NULL;
 508         }
 509 }
 510
 511 int
 512 qat_comp_dev_config(struct rte_compressdev *dev,
 513                 struct rte_compressdev_config *config)
 514 {
 515         struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
 516         int ret = 0;
 517
 518         if (config->max_nb_priv_xforms) {
 519                 comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev,
 520                                             config, config->max_nb_priv_xforms);
 521                 if (comp_dev->xformpool == NULL) {
 522                         ret = -ENOMEM;
 523                         goto error_out;
 524                 }
 525         } else
 526                 comp_dev->xformpool = NULL;
 527
 528         if (config->max_nb_streams) {
 529                 comp_dev->streampool = qat_comp_create_stream_pool(comp_dev,
 530                                      config->socket_id, config->max_nb_streams);
 531                 if (comp_dev->streampool == NULL) {
 532                         ret = -ENOMEM;
 533                         goto error_out;
 534                 }
 535         } else
 536                 comp_dev->streampool = NULL;
 537
 538         return 0;
 539
 540 error_out:
 541         _qat_comp_dev_config_clear(comp_dev);
 542         return ret;
 543 }
 544
 545 int
 546 qat_comp_dev_start(struct rte_compressdev *dev __rte_unused)
 547 {
 548         return 0;
 549 }
 550
 551 void
 552 qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused)
 553 {
 554
 555 }
 556
 557 int
 558 qat_comp_dev_close(struct rte_compressdev *dev)
 559 {
 560         int i;
 561         int ret = 0;
 562         struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
 563
 564         for (i = 0; i < dev->data->nb_queue_pairs; i++) {
 565                 ret = qat_comp_qp_release(dev, i);
 566                 if (ret < 0)
 567                         return ret;
 568         }
 569
 570         _qat_comp_dev_config_clear(comp_dev);
 571
 572         return ret;
 573 }
 574
 575 void
 576 qat_comp_dev_info_get(struct rte_compressdev *dev,
 577                         struct rte_compressdev_info *info)
 578 {
 579         struct qat_comp_dev_private *comp_dev = dev->data->dev_private;
 580         struct qat_pci_device *qat_dev = comp_dev->qat_dev;
 581
 582         if (info != NULL) {
 583                 info->max_nb_queue_pairs =
 584                         qat_qps_per_service(qat_dev,
 585                                             QAT_SERVICE_COMPRESSION);
 586                 info->feature_flags = dev->feature_flags;
 587                 info->capabilities = comp_dev->qat_dev_capabilities;
 588         }
 589 }
 590
 591 static uint16_t
 592 qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused,
 593                                     struct rte_comp_op **ops __rte_unused,
 594                                     uint16_t nb_ops __rte_unused)
 595 {
 596         QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !");
 597         return 0;
 598 }
 599
 600 static struct rte_compressdev_ops compress_qat_dummy_ops = {
 601
 602         /* Device related operations */
 603         .dev_configure          = NULL,
 604         .dev_start              = NULL,
 605         .dev_stop               = qat_comp_dev_stop,
 606         .dev_close              = qat_comp_dev_close,
 607         .dev_infos_get          = NULL,
 608
 609         .stats_get              = NULL,
 610         .stats_reset            = qat_comp_stats_reset,
 611         .queue_pair_setup       = NULL,
 612         .queue_pair_release     = qat_comp_qp_release,
 613
 614         /* Compression related operations */
 615         .private_xform_create   = NULL,
 616         .private_xform_free     = qat_comp_private_xform_free
 617 };
 618
 619 static uint16_t
 620 qat_comp_dequeue_burst(void *qp, struct rte_comp_op **ops,  uint16_t nb_ops)
 621 {
 622         return qat_dequeue_op_burst(qp, (void **)ops, qat_comp_process_response,
 623                                 nb_ops);
 624 }
 625
 626 static uint16_t
 627 qat_comp_pmd_dequeue_first_op_burst(void *qp, struct rte_comp_op **ops,
 628                                    uint16_t nb_ops)
 629 {
 630         uint16_t ret = qat_comp_dequeue_burst(qp, ops, nb_ops);
 631         struct qat_qp *tmp_qp = (struct qat_qp *)qp;
 632
 633         if (ret) {
 634                 if ((*ops)->debug_status ==
 635                                 (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) {
 636                         tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst =
 637                                         qat_comp_pmd_enq_deq_dummy_op_burst;
 638                         tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
 639                                         qat_comp_pmd_enq_deq_dummy_op_burst;
 640
 641                         tmp_qp->qat_dev->comp_dev->compressdev->dev_ops =
 642                                         &compress_qat_dummy_ops;
 643                         QAT_LOG(ERR,
 644                                         "This QAT hardware doesn't support compression operation");
 645
 646                 } else {
 647                         tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst =
 648                                         qat_comp_dequeue_burst;
 649                 }
 650         }
 651         return ret;
 652 }
 653
 654 /* An rte_driver is needed in the registration of the device with compressdev.
 655  * The actual qat pci's rte_driver can't be used as its name represents
 656  * the whole pci device with all services. Think of this as a holder for a name
 657  * for the compression part of the pci device.
 658  */
 659 static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD);
 660 static const struct rte_driver compdev_qat_driver = {
 661         .name = qat_comp_drv_name,
 662         .alias = qat_comp_drv_name
 663 };
 664
 665 int
 666 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev,
 667                 struct qat_dev_cmd_param *qat_dev_cmd_param)
 668 {
 669         int i = 0;
 670         struct qat_device_info *qat_dev_instance =
 671                         &qat_pci_devs[qat_pci_dev->qat_dev_id];
 672         struct rte_compressdev_pmd_init_params init_params = {
 673                 .name = "",
 674                 .socket_id = qat_dev_instance->pci_dev->device.numa_node,
 675         };
 676         char name[RTE_COMPRESSDEV_NAME_MAX_LEN];
 677         char capa_memz_name[RTE_COMPRESSDEV_NAME_MAX_LEN];
 678         struct rte_compressdev *compressdev;
 679         struct qat_comp_dev_private *comp_dev;
 680         struct qat_comp_capabilities_info capabilities_info;
 681         const struct rte_compressdev_capabilities *capabilities;
 682         const struct qat_comp_gen_dev_ops *qat_comp_gen_ops =
 683                         &qat_comp_gen_dev_ops[qat_pci_dev->qat_dev_gen];
 684         uint64_t capa_size;
 685
 686         snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s",
 687                         qat_pci_dev->name, "comp");
 688         QAT_LOG(DEBUG, "Creating QAT COMP device %s", name);
 689
 690         if (qat_comp_gen_ops->compressdev_ops == NULL) {
 691                 QAT_LOG(DEBUG, "Device %s does not support compression", name);
 692                 return -ENOTSUP;
 693         }
 694
 695         /* Populate subset device to use in compressdev device creation */
 696         qat_dev_instance->comp_rte_dev.driver = &compdev_qat_driver;
 697         qat_dev_instance->comp_rte_dev.numa_node =
 698                         qat_dev_instance->pci_dev->device.numa_node;
 699         qat_dev_instance->comp_rte_dev.devargs = NULL;
 700
 701         compressdev = rte_compressdev_pmd_create(name,
 702                         &(qat_dev_instance->comp_rte_dev),
 703                         sizeof(struct qat_comp_dev_private),
 704                         &init_params);
 705
 706         if (compressdev == NULL)
 707                 return -ENODEV;
 708
 709         compressdev->dev_ops = qat_comp_gen_ops->compressdev_ops;
 710
 711         compressdev->enqueue_burst = (compressdev_enqueue_pkt_burst_t)
 712                         qat_enqueue_comp_op_burst;
 713         compressdev->dequeue_burst = qat_comp_pmd_dequeue_first_op_burst;
 714         compressdev->feature_flags =
 715                         qat_comp_gen_ops->qat_comp_get_feature_flags();
 716
 717         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 718                 return 0;
 719
 720         snprintf(capa_memz_name, RTE_COMPRESSDEV_NAME_MAX_LEN,
 721                         "QAT_COMP_CAPA_GEN_%d",
 722                         qat_pci_dev->qat_dev_gen);
 723
 724         comp_dev = compressdev->data->dev_private;
 725         comp_dev->qat_dev = qat_pci_dev;
 726         comp_dev->compressdev = compressdev;
 727
 728         capabilities_info = qat_comp_get_capa_info(qat_pci_dev->qat_dev_gen,
 729                         qat_pci_dev);
 730
 731         if (capabilities_info.data == NULL) {
 732                 QAT_LOG(DEBUG,
 733                         "QAT gen %d capabilities unknown, default to GEN1",
 734                                         qat_pci_dev->qat_dev_gen);
 735                 capabilities_info = qat_comp_get_capa_info(QAT_GEN1,
 736                                 qat_pci_dev);
 737         }
 738
 739         capabilities = capabilities_info.data;
 740         capa_size = capabilities_info.size;
 741
 742         comp_dev->capa_mz = rte_memzone_lookup(capa_memz_name);
 743         if (comp_dev->capa_mz == NULL) {
 744                 comp_dev->capa_mz = rte_memzone_reserve(capa_memz_name,
 745                         capa_size,
 746                         rte_socket_id(), 0);
 747         }
 748         if (comp_dev->capa_mz == NULL) {
 749                 QAT_LOG(DEBUG,
 750                         "Error allocating memzone for capabilities, destroying PMD for %s",
 751                         name);
 752                 memset(&qat_dev_instance->comp_rte_dev, 0,
 753                         sizeof(qat_dev_instance->comp_rte_dev));
 754                 rte_compressdev_pmd_destroy(compressdev);
 755                 return -EFAULT;
 756         }
 757
 758         memcpy(comp_dev->capa_mz->addr, capabilities, capa_size);
 759         comp_dev->qat_dev_capabilities = comp_dev->capa_mz->addr;
 760
 761         while (1) {
 762                 if (qat_dev_cmd_param[i].name == NULL)
 763                         break;
 764                 if (!strcmp(qat_dev_cmd_param[i].name, COMP_ENQ_THRESHOLD_NAME))
 765                         comp_dev->min_enq_burst_threshold =
 766                                         qat_dev_cmd_param[i].val;
 767                 i++;
 768         }
 769         qat_pci_dev->comp_dev = comp_dev;
 770
 771         QAT_LOG(DEBUG,
 772                     "Created QAT COMP device %s as compressdev instance %d",
 773                         name, compressdev->data->dev_id);
 774         return 0;
 775 }
 776
 777 int
 778 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev)
 779 {
 780         struct qat_comp_dev_private *comp_dev;
 781
 782         if (qat_pci_dev == NULL)
 783                 return -ENODEV;
 784
 785         comp_dev = qat_pci_dev->comp_dev;
 786         if (comp_dev == NULL)
 787                 return 0;
 788
 789         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 790                 rte_memzone_free(qat_pci_dev->comp_dev->capa_mz);
 791
 792         /* clean up any resources used by the device */
 793         qat_comp_dev_close(comp_dev->compressdev);
 794
 795         rte_compressdev_pmd_destroy(comp_dev->compressdev);
 796         qat_pci_dev->comp_dev = NULL;
 797
 798         return 0;
 799 }