1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2015-2019 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 stream_create_info { 13 struct qat_comp_dev_private *comp_dev; 14 int socket_id; 15 int error; 16 }; 17 18 static const struct rte_compressdev_capabilities qat_comp_gen_capabilities[] = { 19 {/* COMPRESSION - deflate */ 20 .algo = RTE_COMP_ALGO_DEFLATE, 21 .comp_feature_flags = RTE_COMP_FF_MULTI_PKT_CHECKSUM | 22 RTE_COMP_FF_CRC32_CHECKSUM | 23 RTE_COMP_FF_ADLER32_CHECKSUM | 24 RTE_COMP_FF_CRC32_ADLER32_CHECKSUM | 25 RTE_COMP_FF_SHAREABLE_PRIV_XFORM | 26 RTE_COMP_FF_HUFFMAN_FIXED | 27 RTE_COMP_FF_HUFFMAN_DYNAMIC | 28 RTE_COMP_FF_OOP_SGL_IN_SGL_OUT | 29 RTE_COMP_FF_OOP_SGL_IN_LB_OUT | 30 RTE_COMP_FF_OOP_LB_IN_SGL_OUT | 31 RTE_COMP_FF_STATEFUL_DECOMPRESSION, 32 .window_size = {.min = 15, .max = 15, .increment = 0} }, 33 {RTE_COMP_ALGO_LIST_END, 0, {0, 0, 0} } }; 34 35 static void 36 qat_comp_stats_get(struct rte_compressdev *dev, 37 struct rte_compressdev_stats *stats) 38 { 39 struct qat_common_stats qat_stats = {0}; 40 struct qat_comp_dev_private *qat_priv; 41 42 if (stats == NULL || dev == NULL) { 43 QAT_LOG(ERR, "invalid ptr: stats %p, dev %p", stats, dev); 44 return; 45 } 46 qat_priv = dev->data->dev_private; 47 48 qat_stats_get(qat_priv->qat_dev, &qat_stats, QAT_SERVICE_COMPRESSION); 49 stats->enqueued_count = qat_stats.enqueued_count; 50 stats->dequeued_count = qat_stats.dequeued_count; 51 stats->enqueue_err_count = qat_stats.enqueue_err_count; 52 stats->dequeue_err_count = qat_stats.dequeue_err_count; 53 } 54 55 static void 56 qat_comp_stats_reset(struct rte_compressdev *dev) 57 { 58 struct qat_comp_dev_private *qat_priv; 59 60 if (dev == NULL) { 61 QAT_LOG(ERR, "invalid compressdev ptr %p", dev); 62 return; 63 } 64 qat_priv = dev->data->dev_private; 65 66 qat_stats_reset(qat_priv->qat_dev, QAT_SERVICE_COMPRESSION); 67 68 } 69 70 static int 71 qat_comp_qp_release(struct rte_compressdev *dev, uint16_t queue_pair_id) 72 { 73 struct qat_comp_dev_private *qat_private = dev->data->dev_private; 74 struct qat_qp **qp_addr = 75 (struct qat_qp **)&(dev->data->queue_pairs[queue_pair_id]); 76 struct qat_qp *qp = (struct qat_qp *)*qp_addr; 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 for (i = 0; i < qp->nb_descriptors; i++) { 86 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((struct qat_qp **) 94 &(dev->data->queue_pairs[queue_pair_id])); 95 } 96 97 static 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 *qp; 102 int ret = 0; 103 uint32_t i; 104 struct qat_qp_config qat_qp_conf; 105 106 struct qat_qp **qp_addr = 107 (struct qat_qp **)&(dev->data->queue_pairs[qp_id]); 108 struct qat_comp_dev_private *qat_private = dev->data->dev_private; 109 const struct qat_qp_hw_data *comp_hw_qps = 110 qat_gen_config[qat_private->qat_dev->qat_dev_gen] 111 .qp_hw_data[QAT_SERVICE_COMPRESSION]; 112 const struct qat_qp_hw_data *qp_hw_data = comp_hw_qps + qp_id; 113 114 /* If qp is already in use free ring memory and qp metadata. */ 115 if (*qp_addr != NULL) { 116 ret = qat_comp_qp_release(dev, qp_id); 117 if (ret < 0) 118 return ret; 119 } 120 if (qp_id >= qat_qps_per_service(comp_hw_qps, 121 QAT_SERVICE_COMPRESSION)) { 122 QAT_LOG(ERR, "qp_id %u invalid for this device", qp_id); 123 return -EINVAL; 124 } 125 126 qat_qp_conf.hw = qp_hw_data; 127 qat_qp_conf.build_request = qat_comp_build_request; 128 qat_qp_conf.cookie_size = sizeof(struct qat_comp_op_cookie); 129 qat_qp_conf.nb_descriptors = max_inflight_ops; 130 qat_qp_conf.socket_id = socket_id; 131 qat_qp_conf.service_str = "comp"; 132 133 ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf); 134 if (ret != 0) 135 return ret; 136 137 /* 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 static 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_sgls, offset_of_flat_buffs = 0; 203 int i; 204 int num_im_sgls = qat_gen_config[ 205 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required; 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 a memzone to hold intermediate buffers and associated 218 * meta-data needed by the firmware. The memzone contains 3 parts: 219 * - a list of num_im_sgls physical pointers to sgls 220 * - the num_im_sgl sgl structures, each pointing to 221 * QAT_NUM_BUFS_IN_IM_SGL flat buffers 222 * - the flat buffers: num_im_sgl * QAT_NUM_BUFS_IN_IM_SGL 223 * buffers, each of buff_size 224 * num_im_sgls depends on the hardware generation of the device 225 * buff_size comes from the user via the config file 226 */ 227 228 size_of_ptr_array = num_im_sgls * sizeof(phys_addr_t); 229 offset_of_sgls = (size_of_ptr_array + (~QAT_64_BYTE_ALIGN_MASK)) 230 & QAT_64_BYTE_ALIGN_MASK; 231 offset_of_flat_buffs = 232 offset_of_sgls + num_im_sgls * sizeof(struct qat_inter_sgl); 233 full_size = offset_of_flat_buffs + 234 num_im_sgls * buff_size * QAT_NUM_BUFS_IN_IM_SGL; 235 236 memzone = rte_memzone_reserve_aligned(inter_buff_mz_name, full_size, 237 comp_dev->compressdev->data->socket_id, 238 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN); 239 if (memzone == NULL) { 240 QAT_LOG(ERR, "Can't allocate intermediate buffers" 241 " for device %s", comp_dev->qat_dev->name); 242 return NULL; 243 } 244 245 mz_start = (uint8_t *)memzone->addr; 246 mz_start_phys = memzone->phys_addr; 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 full_size, memzone->len); 251 252 array_of_pointers = (struct array_of_ptrs *)mz_start; 253 for (i = 0; i < num_im_sgls; i++) { 254 uint32_t curr_sgl_offset = 255 offset_of_sgls + i * sizeof(struct qat_inter_sgl); 256 struct qat_inter_sgl *sgl = 257 (struct qat_inter_sgl *)(mz_start + curr_sgl_offset); 258 int lb; 259 array_of_pointers->pointer[i] = mz_start_phys + curr_sgl_offset; 260 261 sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL; 262 sgl->num_mapped_bufs = 0; 263 sgl->resrvd = 0; 264 265 #if QAT_IM_BUFFER_DEBUG 266 QAT_LOG(DEBUG, " : phys addr of sgl[%i] in array_of_pointers" 267 " = 0x%"PRIx64, i, array_of_pointers->pointer[i]); 268 QAT_LOG(DEBUG, " : virt address of sgl[%i] = %p", i, sgl); 269 #endif 270 for (lb = 0; lb < QAT_NUM_BUFS_IN_IM_SGL; lb++) { 271 sgl->buffers[lb].addr = 272 mz_start_phys + offset_of_flat_buffs + 273 (((i * QAT_NUM_BUFS_IN_IM_SGL) + lb) * buff_size); 274 sgl->buffers[lb].len = buff_size; 275 sgl->buffers[lb].resrvd = 0; 276 #if QAT_IM_BUFFER_DEBUG 277 QAT_LOG(DEBUG, 278 " : sgl->buffers[%d].addr = 0x%"PRIx64", len=%d", 279 lb, sgl->buffers[lb].addr, sgl->buffers[lb].len); 280 #endif 281 } 282 } 283 #if QAT_IM_BUFFER_DEBUG 284 QAT_DP_HEXDUMP_LOG(DEBUG, "IM buffer memzone start:", 285 mz_start, offset_of_flat_buffs + 32); 286 #endif 287 return memzone; 288 } 289 290 static struct rte_mempool * 291 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev, 292 struct rte_compressdev_config *config, 293 uint32_t num_elements) 294 { 295 char xform_pool_name[RTE_MEMPOOL_NAMESIZE]; 296 struct rte_mempool *mp; 297 298 snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE, 299 "%s_xforms", comp_dev->qat_dev->name); 300 301 QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name); 302 mp = rte_mempool_lookup(xform_pool_name); 303 304 if (mp != NULL) { 305 QAT_LOG(DEBUG, "xformpool already created"); 306 if (mp->size != num_elements) { 307 QAT_LOG(DEBUG, "xformpool wrong size - delete it"); 308 rte_mempool_free(mp); 309 mp = NULL; 310 comp_dev->xformpool = NULL; 311 } 312 } 313 314 if (mp == NULL) 315 mp = rte_mempool_create(xform_pool_name, 316 num_elements, 317 qat_comp_xform_size(), 0, 0, 318 NULL, NULL, NULL, NULL, config->socket_id, 319 0); 320 if (mp == NULL) { 321 QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d", 322 xform_pool_name, num_elements, qat_comp_xform_size()); 323 return NULL; 324 } 325 326 return mp; 327 } 328 329 static void 330 qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque, 331 void *obj, unsigned int obj_idx) 332 { 333 struct stream_create_info *info = opaque; 334 struct qat_comp_stream *stream = obj; 335 char mz_name[RTE_MEMZONE_NAMESIZE]; 336 const struct rte_memzone *memzone; 337 struct qat_inter_sgl *ram_banks_desc; 338 339 /* find a memzone for RAM banks */ 340 snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks", 341 info->comp_dev->qat_dev->name, obj_idx); 342 memzone = rte_memzone_lookup(mz_name); 343 if (memzone == NULL) { 344 /* allocate a memzone for compression state and RAM banks */ 345 memzone = rte_memzone_reserve_aligned(mz_name, 346 QAT_STATE_REGISTERS_MAX_SIZE 347 + sizeof(struct qat_inter_sgl) 348 + QAT_INFLATE_CONTEXT_SIZE, 349 info->socket_id, 350 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN); 351 if (memzone == NULL) { 352 QAT_LOG(ERR, 353 "Can't allocate RAM banks for device %s, object %u", 354 info->comp_dev->qat_dev->name, obj_idx); 355 info->error = -ENOMEM; 356 return; 357 } 358 } 359 360 /* prepare the buffer list descriptor for RAM banks */ 361 ram_banks_desc = (struct qat_inter_sgl *) 362 (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE); 363 ram_banks_desc->num_bufs = 1; 364 ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE; 365 ram_banks_desc->buffers[0].addr = memzone->iova 366 + QAT_STATE_REGISTERS_MAX_SIZE 367 + sizeof(struct qat_inter_sgl); 368 369 memset(stream, 0, qat_comp_stream_size()); 370 stream->memzone = memzone; 371 stream->state_registers_decomp = memzone->addr; 372 stream->state_registers_decomp_phys = memzone->iova; 373 stream->inflate_context = ((uint8_t *) memzone->addr) 374 + QAT_STATE_REGISTERS_MAX_SIZE; 375 stream->inflate_context_phys = memzone->iova 376 + QAT_STATE_REGISTERS_MAX_SIZE; 377 } 378 379 static void 380 qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused, 381 void *opaque __rte_unused, void *obj, 382 unsigned obj_idx __rte_unused) 383 { 384 struct qat_comp_stream *stream = obj; 385 386 rte_memzone_free(stream->memzone); 387 } 388 389 static struct rte_mempool * 390 qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev, 391 int socket_id, 392 uint32_t num_elements) 393 { 394 char stream_pool_name[RTE_MEMPOOL_NAMESIZE]; 395 struct rte_mempool *mp; 396 397 snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE, 398 "%s_streams", comp_dev->qat_dev->name); 399 400 QAT_LOG(DEBUG, "streampool: %s", stream_pool_name); 401 mp = rte_mempool_lookup(stream_pool_name); 402 403 if (mp != NULL) { 404 QAT_LOG(DEBUG, "streampool already created"); 405 if (mp->size != num_elements) { 406 QAT_LOG(DEBUG, "streampool wrong size - delete it"); 407 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL); 408 rte_mempool_free(mp); 409 mp = NULL; 410 comp_dev->streampool = NULL; 411 } 412 } 413 414 if (mp == NULL) { 415 struct stream_create_info info = { 416 .comp_dev = comp_dev, 417 .socket_id = socket_id, 418 .error = 0 419 }; 420 mp = rte_mempool_create(stream_pool_name, 421 num_elements, 422 qat_comp_stream_size(), 0, 0, 423 NULL, NULL, qat_comp_stream_init, &info, 424 socket_id, 0); 425 if (mp == NULL) { 426 QAT_LOG(ERR, 427 "Err creating mempool %s w %d elements of size %d", 428 stream_pool_name, num_elements, 429 qat_comp_stream_size()); 430 } else if (info.error) { 431 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL); 432 QAT_LOG(ERR, 433 "Destoying mempool %s as at least one element failed initialisation", 434 stream_pool_name); 435 rte_mempool_free(mp); 436 mp = NULL; 437 } 438 } 439 440 return mp; 441 } 442 443 static void 444 _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev) 445 { 446 /* Free intermediate buffers */ 447 if (comp_dev->interm_buff_mz) { 448 rte_memzone_free(comp_dev->interm_buff_mz); 449 comp_dev->interm_buff_mz = NULL; 450 } 451 452 /* Free private_xform pool */ 453 if (comp_dev->xformpool) { 454 /* Free internal mempool for private xforms */ 455 rte_mempool_free(comp_dev->xformpool); 456 comp_dev->xformpool = NULL; 457 } 458 459 /* Free stream pool */ 460 if (comp_dev->streampool) { 461 rte_mempool_obj_iter(comp_dev->streampool, 462 qat_comp_stream_destroy, NULL); 463 rte_mempool_free(comp_dev->streampool); 464 comp_dev->streampool = NULL; 465 } 466 } 467 468 static int 469 qat_comp_dev_config(struct rte_compressdev *dev, 470 struct rte_compressdev_config *config) 471 { 472 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 473 int ret = 0; 474 475 if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) { 476 QAT_LOG(WARNING, 477 "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so" 478 " QAT device can't be used for Dynamic Deflate. " 479 "Did you really intend to do this?"); 480 } else { 481 comp_dev->interm_buff_mz = 482 qat_comp_setup_inter_buffers(comp_dev, 483 RTE_PMD_QAT_COMP_IM_BUFFER_SIZE); 484 if (comp_dev->interm_buff_mz == NULL) { 485 ret = -ENOMEM; 486 goto error_out; 487 } 488 } 489 490 if (config->max_nb_priv_xforms) { 491 comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev, 492 config, config->max_nb_priv_xforms); 493 if (comp_dev->xformpool == NULL) { 494 ret = -ENOMEM; 495 goto error_out; 496 } 497 } else 498 comp_dev->xformpool = NULL; 499 500 if (config->max_nb_streams) { 501 comp_dev->streampool = qat_comp_create_stream_pool(comp_dev, 502 config->socket_id, config->max_nb_streams); 503 if (comp_dev->streampool == NULL) { 504 ret = -ENOMEM; 505 goto error_out; 506 } 507 } else 508 comp_dev->streampool = NULL; 509 510 return 0; 511 512 error_out: 513 _qat_comp_dev_config_clear(comp_dev); 514 return ret; 515 } 516 517 static int 518 qat_comp_dev_start(struct rte_compressdev *dev __rte_unused) 519 { 520 return 0; 521 } 522 523 static void 524 qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused) 525 { 526 527 } 528 529 static int 530 qat_comp_dev_close(struct rte_compressdev *dev) 531 { 532 int i; 533 int ret = 0; 534 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 535 536 for (i = 0; i < dev->data->nb_queue_pairs; i++) { 537 ret = qat_comp_qp_release(dev, i); 538 if (ret < 0) 539 return ret; 540 } 541 542 _qat_comp_dev_config_clear(comp_dev); 543 544 return ret; 545 } 546 547 548 static void 549 qat_comp_dev_info_get(struct rte_compressdev *dev, 550 struct rte_compressdev_info *info) 551 { 552 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 553 const struct qat_qp_hw_data *comp_hw_qps = 554 qat_gen_config[comp_dev->qat_dev->qat_dev_gen] 555 .qp_hw_data[QAT_SERVICE_COMPRESSION]; 556 557 if (info != NULL) { 558 info->max_nb_queue_pairs = 559 qat_qps_per_service(comp_hw_qps, 560 QAT_SERVICE_COMPRESSION); 561 info->feature_flags = dev->feature_flags; 562 info->capabilities = comp_dev->qat_dev_capabilities; 563 } 564 } 565 566 static uint16_t 567 qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused, 568 struct rte_comp_op **ops __rte_unused, 569 uint16_t nb_ops __rte_unused) 570 { 571 QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !"); 572 return 0; 573 } 574 575 static struct rte_compressdev_ops compress_qat_dummy_ops = { 576 577 /* Device related operations */ 578 .dev_configure = NULL, 579 .dev_start = NULL, 580 .dev_stop = qat_comp_dev_stop, 581 .dev_close = qat_comp_dev_close, 582 .dev_infos_get = NULL, 583 584 .stats_get = NULL, 585 .stats_reset = qat_comp_stats_reset, 586 .queue_pair_setup = NULL, 587 .queue_pair_release = qat_comp_qp_release, 588 589 /* Compression related operations */ 590 .private_xform_create = NULL, 591 .private_xform_free = qat_comp_private_xform_free 592 }; 593 594 static uint16_t 595 qat_comp_pmd_dequeue_first_op_burst(void *qp, struct rte_comp_op **ops, 596 uint16_t nb_ops) 597 { 598 uint16_t ret = qat_dequeue_op_burst(qp, (void **)ops, nb_ops); 599 struct qat_qp *tmp_qp = (struct qat_qp *)qp; 600 601 if (ret) { 602 if ((*ops)->debug_status == 603 (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) { 604 tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst = 605 qat_comp_pmd_enq_deq_dummy_op_burst; 606 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst = 607 qat_comp_pmd_enq_deq_dummy_op_burst; 608 609 tmp_qp->qat_dev->comp_dev->compressdev->dev_ops = 610 &compress_qat_dummy_ops; 611 QAT_LOG(ERR, "QAT PMD detected wrong FW version !"); 612 613 } else { 614 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst = 615 (compressdev_dequeue_pkt_burst_t) 616 qat_dequeue_op_burst; 617 } 618 } 619 return ret; 620 } 621 622 static struct rte_compressdev_ops compress_qat_ops = { 623 624 /* Device related operations */ 625 .dev_configure = qat_comp_dev_config, 626 .dev_start = qat_comp_dev_start, 627 .dev_stop = qat_comp_dev_stop, 628 .dev_close = qat_comp_dev_close, 629 .dev_infos_get = qat_comp_dev_info_get, 630 631 .stats_get = qat_comp_stats_get, 632 .stats_reset = qat_comp_stats_reset, 633 .queue_pair_setup = qat_comp_qp_setup, 634 .queue_pair_release = qat_comp_qp_release, 635 636 /* Compression related operations */ 637 .private_xform_create = qat_comp_private_xform_create, 638 .private_xform_free = qat_comp_private_xform_free, 639 .stream_create = qat_comp_stream_create, 640 .stream_free = qat_comp_stream_free 641 }; 642 643 /* An rte_driver is needed in the registration of the device with compressdev. 644 * The actual qat pci's rte_driver can't be used as its name represents 645 * the whole pci device with all services. Think of this as a holder for a name 646 * for the compression part of the pci device. 647 */ 648 static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD); 649 static const struct rte_driver compdev_qat_driver = { 650 .name = qat_comp_drv_name, 651 .alias = qat_comp_drv_name 652 }; 653 int 654 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev, 655 struct qat_dev_cmd_param *qat_dev_cmd_param) 656 { 657 int i = 0; 658 if (qat_pci_dev->qat_dev_gen == QAT_GEN3) { 659 QAT_LOG(ERR, "Compression PMD not supported on QAT P5xxx"); 660 return 0; 661 } 662 663 struct rte_compressdev_pmd_init_params init_params = { 664 .name = "", 665 .socket_id = qat_pci_dev->pci_dev->device.numa_node, 666 }; 667 char name[RTE_COMPRESSDEV_NAME_MAX_LEN]; 668 struct rte_compressdev *compressdev; 669 struct qat_comp_dev_private *comp_dev; 670 671 snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s", 672 qat_pci_dev->name, "comp"); 673 QAT_LOG(DEBUG, "Creating QAT COMP device %s", name); 674 675 /* Populate subset device to use in compressdev device creation */ 676 qat_pci_dev->comp_rte_dev.driver = &compdev_qat_driver; 677 qat_pci_dev->comp_rte_dev.numa_node = 678 qat_pci_dev->pci_dev->device.numa_node; 679 qat_pci_dev->comp_rte_dev.devargs = NULL; 680 681 compressdev = rte_compressdev_pmd_create(name, 682 &(qat_pci_dev->comp_rte_dev), 683 sizeof(struct qat_comp_dev_private), 684 &init_params); 685 686 if (compressdev == NULL) 687 return -ENODEV; 688 689 compressdev->dev_ops = &compress_qat_ops; 690 691 compressdev->enqueue_burst = (compressdev_enqueue_pkt_burst_t) 692 qat_enqueue_comp_op_burst; 693 compressdev->dequeue_burst = qat_comp_pmd_dequeue_first_op_burst; 694 695 compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED; 696 697 comp_dev = compressdev->data->dev_private; 698 comp_dev->qat_dev = qat_pci_dev; 699 comp_dev->compressdev = compressdev; 700 qat_pci_dev->comp_dev = comp_dev; 701 702 switch (qat_pci_dev->qat_dev_gen) { 703 case QAT_GEN1: 704 case QAT_GEN2: 705 case QAT_GEN3: 706 comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities; 707 break; 708 default: 709 comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities; 710 QAT_LOG(DEBUG, 711 "QAT gen %d capabilities unknown, default to GEN1", 712 qat_pci_dev->qat_dev_gen); 713 break; 714 } 715 716 while (1) { 717 if (qat_dev_cmd_param[i].name == NULL) 718 break; 719 if (!strcmp(qat_dev_cmd_param[i].name, COMP_ENQ_THRESHOLD_NAME)) 720 comp_dev->min_enq_burst_threshold = 721 qat_dev_cmd_param[i].val; 722 i++; 723 } 724 725 QAT_LOG(DEBUG, 726 "Created QAT COMP device %s as compressdev instance %d", 727 name, compressdev->data->dev_id); 728 return 0; 729 } 730 731 int 732 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev) 733 { 734 struct qat_comp_dev_private *comp_dev; 735 736 if (qat_pci_dev == NULL) 737 return -ENODEV; 738 739 comp_dev = qat_pci_dev->comp_dev; 740 if (comp_dev == NULL) 741 return 0; 742 743 /* clean up any resources used by the device */ 744 qat_comp_dev_close(comp_dev->compressdev); 745 746 rte_compressdev_pmd_destroy(comp_dev->compressdev); 747 qat_pci_dev->comp_dev = NULL; 748 749 return 0; 750 } 751