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; 142 143 for (i = 0; i < qp->nb_descriptors; i++) { 144 145 struct qat_comp_op_cookie *cookie = 146 qp->op_cookies[i]; 147 148 cookie->qat_sgl_src_d = rte_zmalloc_socket(NULL, 149 sizeof(struct qat_sgl) + 150 sizeof(struct qat_flat_buf) * 151 QAT_PMD_COMP_SGL_DEF_SEGMENTS, 152 64, dev->data->socket_id); 153 154 cookie->qat_sgl_dst_d = rte_zmalloc_socket(NULL, 155 sizeof(struct qat_sgl) + 156 sizeof(struct qat_flat_buf) * 157 QAT_PMD_COMP_SGL_DEF_SEGMENTS, 158 64, dev->data->socket_id); 159 160 if (cookie->qat_sgl_src_d == NULL || 161 cookie->qat_sgl_dst_d == NULL) { 162 QAT_LOG(ERR, "Can't allocate SGL" 163 " for device %s", 164 qat_private->qat_dev->name); 165 return -ENOMEM; 166 } 167 168 cookie->qat_sgl_src_phys_addr = 169 rte_malloc_virt2iova(cookie->qat_sgl_src_d); 170 171 cookie->qat_sgl_dst_phys_addr = 172 rte_malloc_virt2iova(cookie->qat_sgl_dst_d); 173 174 cookie->dst_nb_elems = cookie->src_nb_elems = 175 QAT_PMD_COMP_SGL_DEF_SEGMENTS; 176 177 cookie->socket_id = dev->data->socket_id; 178 179 cookie->error = 0; 180 } 181 182 return ret; 183 } 184 185 186 #define QAT_IM_BUFFER_DEBUG 0 187 static const struct rte_memzone * 188 qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev, 189 uint32_t buff_size) 190 { 191 char inter_buff_mz_name[RTE_MEMZONE_NAMESIZE]; 192 const struct rte_memzone *memzone; 193 uint8_t *mz_start = NULL; 194 rte_iova_t mz_start_phys = 0; 195 struct array_of_ptrs *array_of_pointers; 196 int size_of_ptr_array; 197 uint32_t full_size; 198 uint32_t offset_of_sgls, offset_of_flat_buffs = 0; 199 int i; 200 int num_im_sgls = qat_gen_config[ 201 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required; 202 203 QAT_LOG(DEBUG, "QAT COMP device %s needs %d sgls", 204 comp_dev->qat_dev->name, num_im_sgls); 205 snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE, 206 "%s_inter_buff", comp_dev->qat_dev->name); 207 memzone = rte_memzone_lookup(inter_buff_mz_name); 208 if (memzone != NULL) { 209 QAT_LOG(DEBUG, "QAT COMP im buffer memzone created already"); 210 return memzone; 211 } 212 213 /* Create a memzone to hold intermediate buffers and associated 214 * meta-data needed by the firmware. The memzone contains 3 parts: 215 * - a list of num_im_sgls physical pointers to sgls 216 * - the num_im_sgl sgl structures, each pointing to 217 * QAT_NUM_BUFS_IN_IM_SGL flat buffers 218 * - the flat buffers: num_im_sgl * QAT_NUM_BUFS_IN_IM_SGL 219 * buffers, each of buff_size 220 * num_im_sgls depends on the hardware generation of the device 221 * buff_size comes from the user via the config file 222 */ 223 224 size_of_ptr_array = num_im_sgls * sizeof(phys_addr_t); 225 offset_of_sgls = (size_of_ptr_array + (~QAT_64_BYTE_ALIGN_MASK)) 226 & QAT_64_BYTE_ALIGN_MASK; 227 offset_of_flat_buffs = 228 offset_of_sgls + num_im_sgls * sizeof(struct qat_inter_sgl); 229 full_size = offset_of_flat_buffs + 230 num_im_sgls * buff_size * QAT_NUM_BUFS_IN_IM_SGL; 231 232 memzone = rte_memzone_reserve_aligned(inter_buff_mz_name, full_size, 233 comp_dev->compressdev->data->socket_id, 234 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN); 235 if (memzone == NULL) { 236 QAT_LOG(ERR, "Can't allocate intermediate buffers" 237 " for device %s", comp_dev->qat_dev->name); 238 return NULL; 239 } 240 241 mz_start = (uint8_t *)memzone->addr; 242 mz_start_phys = memzone->phys_addr; 243 QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64 244 ", size required %d, size created %zu", 245 inter_buff_mz_name, mz_start, mz_start_phys, 246 full_size, memzone->len); 247 248 array_of_pointers = (struct array_of_ptrs *)mz_start; 249 for (i = 0; i < num_im_sgls; i++) { 250 uint32_t curr_sgl_offset = 251 offset_of_sgls + i * sizeof(struct qat_inter_sgl); 252 struct qat_inter_sgl *sgl = 253 (struct qat_inter_sgl *)(mz_start + curr_sgl_offset); 254 int lb; 255 array_of_pointers->pointer[i] = mz_start_phys + curr_sgl_offset; 256 257 sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL; 258 sgl->num_mapped_bufs = 0; 259 sgl->resrvd = 0; 260 261 #if QAT_IM_BUFFER_DEBUG 262 QAT_LOG(DEBUG, " : phys addr of sgl[%i] in array_of_pointers" 263 " = 0x%"PRIx64, i, array_of_pointers->pointer[i]); 264 QAT_LOG(DEBUG, " : virt address of sgl[%i] = %p", i, sgl); 265 #endif 266 for (lb = 0; lb < QAT_NUM_BUFS_IN_IM_SGL; lb++) { 267 sgl->buffers[lb].addr = 268 mz_start_phys + offset_of_flat_buffs + 269 (((i * QAT_NUM_BUFS_IN_IM_SGL) + lb) * buff_size); 270 sgl->buffers[lb].len = buff_size; 271 sgl->buffers[lb].resrvd = 0; 272 #if QAT_IM_BUFFER_DEBUG 273 QAT_LOG(DEBUG, 274 " : sgl->buffers[%d].addr = 0x%"PRIx64", len=%d", 275 lb, sgl->buffers[lb].addr, sgl->buffers[lb].len); 276 #endif 277 } 278 } 279 #if QAT_IM_BUFFER_DEBUG 280 QAT_DP_HEXDUMP_LOG(DEBUG, "IM buffer memzone start:", 281 mz_start, offset_of_flat_buffs + 32); 282 #endif 283 return memzone; 284 } 285 286 static struct rte_mempool * 287 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev, 288 struct rte_compressdev_config *config, 289 uint32_t num_elements) 290 { 291 char xform_pool_name[RTE_MEMPOOL_NAMESIZE]; 292 struct rte_mempool *mp; 293 294 snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE, 295 "%s_xforms", comp_dev->qat_dev->name); 296 297 QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name); 298 mp = rte_mempool_lookup(xform_pool_name); 299 300 if (mp != NULL) { 301 QAT_LOG(DEBUG, "xformpool already created"); 302 if (mp->size != num_elements) { 303 QAT_LOG(DEBUG, "xformpool wrong size - delete it"); 304 rte_mempool_free(mp); 305 mp = NULL; 306 comp_dev->xformpool = NULL; 307 } 308 } 309 310 if (mp == NULL) 311 mp = rte_mempool_create(xform_pool_name, 312 num_elements, 313 qat_comp_xform_size(), 0, 0, 314 NULL, NULL, NULL, NULL, config->socket_id, 315 0); 316 if (mp == NULL) { 317 QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d", 318 xform_pool_name, num_elements, qat_comp_xform_size()); 319 return NULL; 320 } 321 322 return mp; 323 } 324 325 static void 326 qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque, 327 void *obj, unsigned int obj_idx) 328 { 329 struct stream_create_info *info = opaque; 330 struct qat_comp_stream *stream = obj; 331 char mz_name[RTE_MEMZONE_NAMESIZE]; 332 const struct rte_memzone *memzone; 333 struct qat_inter_sgl *ram_banks_desc; 334 335 /* find a memzone for RAM banks */ 336 snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks", 337 info->comp_dev->qat_dev->name, obj_idx); 338 memzone = rte_memzone_lookup(mz_name); 339 if (memzone == NULL) { 340 /* allocate a memzone for compression state and RAM banks */ 341 memzone = rte_memzone_reserve_aligned(mz_name, 342 QAT_STATE_REGISTERS_MAX_SIZE 343 + sizeof(struct qat_inter_sgl) 344 + QAT_INFLATE_CONTEXT_SIZE, 345 info->socket_id, 346 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN); 347 if (memzone == NULL) { 348 QAT_LOG(ERR, 349 "Can't allocate RAM banks for device %s, object %u", 350 info->comp_dev->qat_dev->name, obj_idx); 351 info->error = -ENOMEM; 352 return; 353 } 354 } 355 356 /* prepare the buffer list descriptor for RAM banks */ 357 ram_banks_desc = (struct qat_inter_sgl *) 358 (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE); 359 ram_banks_desc->num_bufs = 1; 360 ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE; 361 ram_banks_desc->buffers[0].addr = memzone->iova 362 + QAT_STATE_REGISTERS_MAX_SIZE 363 + sizeof(struct qat_inter_sgl); 364 365 memset(stream, 0, qat_comp_stream_size()); 366 stream->memzone = memzone; 367 stream->state_registers_decomp = memzone->addr; 368 stream->state_registers_decomp_phys = memzone->iova; 369 stream->inflate_context = ((uint8_t *) memzone->addr) 370 + QAT_STATE_REGISTERS_MAX_SIZE; 371 stream->inflate_context_phys = memzone->iova 372 + QAT_STATE_REGISTERS_MAX_SIZE; 373 } 374 375 static void 376 qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused, 377 void *opaque __rte_unused, void *obj, 378 unsigned obj_idx __rte_unused) 379 { 380 struct qat_comp_stream *stream = obj; 381 382 rte_memzone_free(stream->memzone); 383 } 384 385 static struct rte_mempool * 386 qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev, 387 int socket_id, 388 uint32_t num_elements) 389 { 390 char stream_pool_name[RTE_MEMPOOL_NAMESIZE]; 391 struct rte_mempool *mp; 392 393 snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE, 394 "%s_streams", comp_dev->qat_dev->name); 395 396 QAT_LOG(DEBUG, "streampool: %s", stream_pool_name); 397 mp = rte_mempool_lookup(stream_pool_name); 398 399 if (mp != NULL) { 400 QAT_LOG(DEBUG, "streampool already created"); 401 if (mp->size != num_elements) { 402 QAT_LOG(DEBUG, "streampool wrong size - delete it"); 403 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL); 404 rte_mempool_free(mp); 405 mp = NULL; 406 comp_dev->streampool = NULL; 407 } 408 } 409 410 if (mp == NULL) { 411 struct stream_create_info info = { 412 .comp_dev = comp_dev, 413 .socket_id = socket_id, 414 .error = 0 415 }; 416 mp = rte_mempool_create(stream_pool_name, 417 num_elements, 418 qat_comp_stream_size(), 0, 0, 419 NULL, NULL, qat_comp_stream_init, &info, 420 socket_id, 0); 421 if (mp == NULL) { 422 QAT_LOG(ERR, 423 "Err creating mempool %s w %d elements of size %d", 424 stream_pool_name, num_elements, 425 qat_comp_stream_size()); 426 } else if (info.error) { 427 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL); 428 QAT_LOG(ERR, 429 "Destoying mempool %s as at least one element failed initialisation", 430 stream_pool_name); 431 rte_mempool_free(mp); 432 mp = NULL; 433 } 434 } 435 436 return mp; 437 } 438 439 static void 440 _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev) 441 { 442 /* Free intermediate buffers */ 443 if (comp_dev->interm_buff_mz) { 444 rte_memzone_free(comp_dev->interm_buff_mz); 445 comp_dev->interm_buff_mz = NULL; 446 } 447 448 /* Free private_xform pool */ 449 if (comp_dev->xformpool) { 450 /* Free internal mempool for private xforms */ 451 rte_mempool_free(comp_dev->xformpool); 452 comp_dev->xformpool = NULL; 453 } 454 455 /* Free stream pool */ 456 if (comp_dev->streampool) { 457 rte_mempool_obj_iter(comp_dev->streampool, 458 qat_comp_stream_destroy, NULL); 459 rte_mempool_free(comp_dev->streampool); 460 comp_dev->streampool = NULL; 461 } 462 } 463 464 static int 465 qat_comp_dev_config(struct rte_compressdev *dev, 466 struct rte_compressdev_config *config) 467 { 468 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 469 int ret = 0; 470 471 if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) { 472 QAT_LOG(WARNING, 473 "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so" 474 " QAT device can't be used for Dynamic Deflate. " 475 "Did you really intend to do this?"); 476 } else { 477 comp_dev->interm_buff_mz = 478 qat_comp_setup_inter_buffers(comp_dev, 479 RTE_PMD_QAT_COMP_IM_BUFFER_SIZE); 480 if (comp_dev->interm_buff_mz == NULL) { 481 ret = -ENOMEM; 482 goto error_out; 483 } 484 } 485 486 if (config->max_nb_priv_xforms) { 487 comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev, 488 config, config->max_nb_priv_xforms); 489 if (comp_dev->xformpool == NULL) { 490 ret = -ENOMEM; 491 goto error_out; 492 } 493 } else 494 comp_dev->xformpool = NULL; 495 496 if (config->max_nb_streams) { 497 comp_dev->streampool = qat_comp_create_stream_pool(comp_dev, 498 config->socket_id, config->max_nb_streams); 499 if (comp_dev->streampool == NULL) { 500 ret = -ENOMEM; 501 goto error_out; 502 } 503 } else 504 comp_dev->streampool = NULL; 505 506 return 0; 507 508 error_out: 509 _qat_comp_dev_config_clear(comp_dev); 510 return ret; 511 } 512 513 static int 514 qat_comp_dev_start(struct rte_compressdev *dev __rte_unused) 515 { 516 return 0; 517 } 518 519 static void 520 qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused) 521 { 522 523 } 524 525 static int 526 qat_comp_dev_close(struct rte_compressdev *dev) 527 { 528 int i; 529 int ret = 0; 530 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 531 532 for (i = 0; i < dev->data->nb_queue_pairs; i++) { 533 ret = qat_comp_qp_release(dev, i); 534 if (ret < 0) 535 return ret; 536 } 537 538 _qat_comp_dev_config_clear(comp_dev); 539 540 return ret; 541 } 542 543 544 static void 545 qat_comp_dev_info_get(struct rte_compressdev *dev, 546 struct rte_compressdev_info *info) 547 { 548 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 549 const struct qat_qp_hw_data *comp_hw_qps = 550 qat_gen_config[comp_dev->qat_dev->qat_dev_gen] 551 .qp_hw_data[QAT_SERVICE_COMPRESSION]; 552 553 if (info != NULL) { 554 info->max_nb_queue_pairs = 555 qat_qps_per_service(comp_hw_qps, 556 QAT_SERVICE_COMPRESSION); 557 info->feature_flags = dev->feature_flags; 558 info->capabilities = comp_dev->qat_dev_capabilities; 559 } 560 } 561 562 static uint16_t 563 qat_comp_pmd_enqueue_op_burst(void *qp, struct rte_comp_op **ops, 564 uint16_t nb_ops) 565 { 566 return qat_enqueue_op_burst(qp, (void **)ops, nb_ops); 567 } 568 569 static uint16_t 570 qat_comp_pmd_dequeue_op_burst(void *qp, struct rte_comp_op **ops, 571 uint16_t nb_ops) 572 { 573 return qat_dequeue_op_burst(qp, (void **)ops, nb_ops); 574 } 575 576 static uint16_t 577 qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused, 578 struct rte_comp_op **ops __rte_unused, 579 uint16_t nb_ops __rte_unused) 580 { 581 QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !"); 582 return 0; 583 } 584 585 static struct rte_compressdev_ops compress_qat_dummy_ops = { 586 587 /* Device related operations */ 588 .dev_configure = NULL, 589 .dev_start = NULL, 590 .dev_stop = qat_comp_dev_stop, 591 .dev_close = qat_comp_dev_close, 592 .dev_infos_get = NULL, 593 594 .stats_get = NULL, 595 .stats_reset = qat_comp_stats_reset, 596 .queue_pair_setup = NULL, 597 .queue_pair_release = qat_comp_qp_release, 598 599 /* Compression related operations */ 600 .private_xform_create = NULL, 601 .private_xform_free = qat_comp_private_xform_free 602 }; 603 604 static uint16_t 605 qat_comp_pmd_dequeue_frst_op_burst(void *qp, struct rte_comp_op **ops, 606 uint16_t nb_ops) 607 { 608 uint16_t ret = qat_dequeue_op_burst(qp, (void **)ops, nb_ops); 609 struct qat_qp *tmp_qp = (struct qat_qp *)qp; 610 611 if (ret) { 612 if ((*ops)->debug_status == 613 (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) { 614 tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst = 615 qat_comp_pmd_enq_deq_dummy_op_burst; 616 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst = 617 qat_comp_pmd_enq_deq_dummy_op_burst; 618 619 tmp_qp->qat_dev->comp_dev->compressdev->dev_ops = 620 &compress_qat_dummy_ops; 621 QAT_LOG(ERR, "QAT PMD detected wrong FW version !"); 622 623 } else { 624 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst = 625 qat_comp_pmd_dequeue_op_burst; 626 } 627 } 628 return ret; 629 } 630 631 static struct rte_compressdev_ops compress_qat_ops = { 632 633 /* Device related operations */ 634 .dev_configure = qat_comp_dev_config, 635 .dev_start = qat_comp_dev_start, 636 .dev_stop = qat_comp_dev_stop, 637 .dev_close = qat_comp_dev_close, 638 .dev_infos_get = qat_comp_dev_info_get, 639 640 .stats_get = qat_comp_stats_get, 641 .stats_reset = qat_comp_stats_reset, 642 .queue_pair_setup = qat_comp_qp_setup, 643 .queue_pair_release = qat_comp_qp_release, 644 645 /* Compression related operations */ 646 .private_xform_create = qat_comp_private_xform_create, 647 .private_xform_free = qat_comp_private_xform_free, 648 .stream_create = qat_comp_stream_create, 649 .stream_free = qat_comp_stream_free 650 }; 651 652 /* An rte_driver is needed in the registration of the device with compressdev. 653 * The actual qat pci's rte_driver can't be used as its name represents 654 * the whole pci device with all services. Think of this as a holder for a name 655 * for the compression part of the pci device. 656 */ 657 static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD); 658 static const struct rte_driver compdev_qat_driver = { 659 .name = qat_comp_drv_name, 660 .alias = qat_comp_drv_name 661 }; 662 int 663 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev) 664 { 665 if (qat_pci_dev->qat_dev_gen == QAT_GEN3) { 666 QAT_LOG(ERR, "Compression PMD not supported on QAT c4xxx"); 667 return 0; 668 } 669 670 struct rte_compressdev_pmd_init_params init_params = { 671 .name = "", 672 .socket_id = qat_pci_dev->pci_dev->device.numa_node, 673 }; 674 char name[RTE_COMPRESSDEV_NAME_MAX_LEN]; 675 struct rte_compressdev *compressdev; 676 struct qat_comp_dev_private *comp_dev; 677 678 snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s", 679 qat_pci_dev->name, "comp"); 680 QAT_LOG(DEBUG, "Creating QAT COMP device %s", name); 681 682 /* Populate subset device to use in compressdev device creation */ 683 qat_pci_dev->comp_rte_dev.driver = &compdev_qat_driver; 684 qat_pci_dev->comp_rte_dev.numa_node = 685 qat_pci_dev->pci_dev->device.numa_node; 686 qat_pci_dev->comp_rte_dev.devargs = NULL; 687 688 compressdev = rte_compressdev_pmd_create(name, 689 &(qat_pci_dev->comp_rte_dev), 690 sizeof(struct qat_comp_dev_private), 691 &init_params); 692 693 if (compressdev == NULL) 694 return -ENODEV; 695 696 compressdev->dev_ops = &compress_qat_ops; 697 698 compressdev->enqueue_burst = qat_comp_pmd_enqueue_op_burst; 699 compressdev->dequeue_burst = qat_comp_pmd_dequeue_frst_op_burst; 700 701 compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED; 702 703 comp_dev = compressdev->data->dev_private; 704 comp_dev->qat_dev = qat_pci_dev; 705 comp_dev->compressdev = compressdev; 706 qat_pci_dev->comp_dev = comp_dev; 707 708 switch (qat_pci_dev->qat_dev_gen) { 709 case QAT_GEN1: 710 case QAT_GEN2: 711 case QAT_GEN3: 712 comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities; 713 break; 714 default: 715 comp_dev->qat_dev_capabilities = qat_comp_gen_capabilities; 716 QAT_LOG(DEBUG, 717 "QAT gen %d capabilities unknown, default to GEN1", 718 qat_pci_dev->qat_dev_gen); 719 break; 720 } 721 722 QAT_LOG(DEBUG, 723 "Created QAT COMP device %s as compressdev instance %d", 724 name, compressdev->data->dev_id); 725 return 0; 726 } 727 728 int 729 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev) 730 { 731 struct qat_comp_dev_private *comp_dev; 732 733 if (qat_pci_dev == NULL) 734 return -ENODEV; 735 736 comp_dev = qat_pci_dev->comp_dev; 737 if (comp_dev == NULL) 738 return 0; 739 740 /* clean up any resources used by the device */ 741 qat_comp_dev_close(comp_dev->compressdev); 742 743 rte_compressdev_pmd_destroy(comp_dev->compressdev); 744 qat_pci_dev->comp_dev = NULL; 745 746 return 0; 747 } 748