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 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((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.cookie_size = sizeof(struct qat_comp_op_cookie); 128 qat_qp_conf.nb_descriptors = max_inflight_ops; 129 qat_qp_conf.socket_id = socket_id; 130 qat_qp_conf.service_str = "comp"; 131 132 ret = qat_qp_setup(qat_private->qat_dev, qp_addr, qp_id, &qat_qp_conf); 133 if (ret != 0) 134 return ret; 135 136 /* store a link to the qp in the qat_pci_device */ 137 qat_private->qat_dev->qps_in_use[QAT_SERVICE_COMPRESSION][qp_id] 138 = *qp_addr; 139 140 qp = (struct qat_qp *)*qp_addr; 141 qp->min_enq_burst_threshold = qat_private->min_enq_burst_threshold; 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->qp = qp; 149 cookie->cookie_index = i; 150 151 cookie->qat_sgl_src_d = rte_zmalloc_socket(NULL, 152 sizeof(struct qat_sgl) + 153 sizeof(struct qat_flat_buf) * 154 QAT_PMD_COMP_SGL_DEF_SEGMENTS, 155 64, dev->data->socket_id); 156 157 cookie->qat_sgl_dst_d = rte_zmalloc_socket(NULL, 158 sizeof(struct qat_sgl) + 159 sizeof(struct qat_flat_buf) * 160 QAT_PMD_COMP_SGL_DEF_SEGMENTS, 161 64, dev->data->socket_id); 162 163 if (cookie->qat_sgl_src_d == NULL || 164 cookie->qat_sgl_dst_d == NULL) { 165 QAT_LOG(ERR, "Can't allocate SGL" 166 " for device %s", 167 qat_private->qat_dev->name); 168 return -ENOMEM; 169 } 170 171 cookie->qat_sgl_src_phys_addr = 172 rte_malloc_virt2iova(cookie->qat_sgl_src_d); 173 174 cookie->qat_sgl_dst_phys_addr = 175 rte_malloc_virt2iova(cookie->qat_sgl_dst_d); 176 177 cookie->dst_nb_elems = cookie->src_nb_elems = 178 QAT_PMD_COMP_SGL_DEF_SEGMENTS; 179 180 cookie->socket_id = dev->data->socket_id; 181 182 cookie->error = 0; 183 } 184 185 return ret; 186 } 187 188 189 #define QAT_IM_BUFFER_DEBUG 0 190 static const struct rte_memzone * 191 qat_comp_setup_inter_buffers(struct qat_comp_dev_private *comp_dev, 192 uint32_t buff_size) 193 { 194 char inter_buff_mz_name[RTE_MEMZONE_NAMESIZE]; 195 const struct rte_memzone *memzone; 196 uint8_t *mz_start = NULL; 197 rte_iova_t mz_start_phys = 0; 198 struct array_of_ptrs *array_of_pointers; 199 int size_of_ptr_array; 200 uint32_t full_size; 201 uint32_t offset_of_flat_buffs; 202 int i; 203 int num_im_sgls = qat_gen_config[ 204 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required; 205 206 QAT_LOG(DEBUG, "QAT COMP device %s needs %d sgls", 207 comp_dev->qat_dev->name, num_im_sgls); 208 snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE, 209 "%s_inter_buff", comp_dev->qat_dev->name); 210 memzone = rte_memzone_lookup(inter_buff_mz_name); 211 if (memzone != NULL) { 212 QAT_LOG(DEBUG, "QAT COMP im buffer memzone created already"); 213 return memzone; 214 } 215 216 /* Create multiple memzones to hold intermediate buffers and associated 217 * meta-data needed by the firmware. 218 * The first memzone contains: 219 * - a list of num_im_sgls physical pointers to sgls 220 * All other memzones contain: 221 * - the sgl structure, pointing to QAT_NUM_BUFS_IN_IM_SGL flat buffers 222 * - the flat buffers: QAT_NUM_BUFS_IN_IM_SGL buffers, 223 * 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_flat_buffs = sizeof(struct qat_inter_sgl); 230 full_size = offset_of_flat_buffs + 231 buff_size * QAT_NUM_BUFS_IN_IM_SGL; 232 233 memzone = rte_memzone_reserve_aligned(inter_buff_mz_name, 234 size_of_ptr_array, 235 comp_dev->compressdev->data->socket_id, 236 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN); 237 if (memzone == NULL) { 238 QAT_LOG(ERR, 239 "Can't allocate intermediate buffers for device %s", 240 comp_dev->qat_dev->name); 241 return NULL; 242 } 243 244 mz_start = (uint8_t *)memzone->addr; 245 mz_start_phys = memzone->iova; 246 QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64 247 ", size required %d, size created %zu", 248 inter_buff_mz_name, mz_start, mz_start_phys, 249 size_of_ptr_array, memzone->len); 250 251 array_of_pointers = (struct array_of_ptrs *)mz_start; 252 for (i = 0; i < num_im_sgls; i++) { 253 const struct rte_memzone *mz; 254 struct qat_inter_sgl *sgl; 255 int lb; 256 257 snprintf(inter_buff_mz_name, RTE_MEMZONE_NAMESIZE, 258 "%s_inter_buff_%d", comp_dev->qat_dev->name, i); 259 mz = rte_memzone_lookup(inter_buff_mz_name); 260 if (mz == NULL) { 261 mz = rte_memzone_reserve_aligned(inter_buff_mz_name, 262 full_size, 263 comp_dev->compressdev->data->socket_id, 264 RTE_MEMZONE_IOVA_CONTIG, 265 QAT_64_BYTE_ALIGN); 266 if (mz == NULL) { 267 QAT_LOG(ERR, 268 "Can't allocate intermediate buffers for device %s", 269 comp_dev->qat_dev->name); 270 while (--i >= 0) { 271 snprintf(inter_buff_mz_name, 272 RTE_MEMZONE_NAMESIZE, 273 "%s_inter_buff_%d", 274 comp_dev->qat_dev->name, 275 i); 276 rte_memzone_free( 277 rte_memzone_lookup( 278 inter_buff_mz_name)); 279 } 280 rte_memzone_free(memzone); 281 return NULL; 282 } 283 } 284 285 QAT_LOG(DEBUG, "Memzone %s: addr = %p, phys = 0x%"PRIx64 286 ", size required %d, size created %zu", 287 inter_buff_mz_name, mz->addr, mz->iova, 288 full_size, mz->len); 289 290 array_of_pointers->pointer[i] = mz->iova; 291 292 sgl = (struct qat_inter_sgl *) mz->addr; 293 sgl->num_bufs = QAT_NUM_BUFS_IN_IM_SGL; 294 sgl->num_mapped_bufs = 0; 295 sgl->resrvd = 0; 296 297 #if QAT_IM_BUFFER_DEBUG 298 QAT_LOG(DEBUG, " : phys addr of sgl[%i] in array_of_pointers" 299 " = 0x%"PRIx64, i, array_of_pointers->pointer[i]); 300 QAT_LOG(DEBUG, " : virt address of sgl[%i] = %p", i, sgl); 301 #endif 302 for (lb = 0; lb < QAT_NUM_BUFS_IN_IM_SGL; lb++) { 303 sgl->buffers[lb].addr = 304 mz->iova + offset_of_flat_buffs + 305 lb * buff_size; 306 sgl->buffers[lb].len = buff_size; 307 sgl->buffers[lb].resrvd = 0; 308 #if QAT_IM_BUFFER_DEBUG 309 QAT_LOG(DEBUG, 310 " : sgl->buffers[%d].addr = 0x%"PRIx64", len=%d", 311 lb, sgl->buffers[lb].addr, sgl->buffers[lb].len); 312 #endif 313 } 314 } 315 #if QAT_IM_BUFFER_DEBUG 316 QAT_DP_HEXDUMP_LOG(DEBUG, "IM buffer memzone start:", 317 memzone->addr, size_of_ptr_array); 318 #endif 319 return memzone; 320 } 321 322 static struct rte_mempool * 323 qat_comp_create_xform_pool(struct qat_comp_dev_private *comp_dev, 324 struct rte_compressdev_config *config, 325 uint32_t num_elements) 326 { 327 char xform_pool_name[RTE_MEMPOOL_NAMESIZE]; 328 struct rte_mempool *mp; 329 330 snprintf(xform_pool_name, RTE_MEMPOOL_NAMESIZE, 331 "%s_xforms", comp_dev->qat_dev->name); 332 333 QAT_LOG(DEBUG, "xformpool: %s", xform_pool_name); 334 mp = rte_mempool_lookup(xform_pool_name); 335 336 if (mp != NULL) { 337 QAT_LOG(DEBUG, "xformpool already created"); 338 if (mp->size != num_elements) { 339 QAT_LOG(DEBUG, "xformpool wrong size - delete it"); 340 rte_mempool_free(mp); 341 mp = NULL; 342 comp_dev->xformpool = NULL; 343 } 344 } 345 346 if (mp == NULL) 347 mp = rte_mempool_create(xform_pool_name, 348 num_elements, 349 qat_comp_xform_size(), 0, 0, 350 NULL, NULL, NULL, NULL, config->socket_id, 351 0); 352 if (mp == NULL) { 353 QAT_LOG(ERR, "Err creating mempool %s w %d elements of size %d", 354 xform_pool_name, num_elements, qat_comp_xform_size()); 355 return NULL; 356 } 357 358 return mp; 359 } 360 361 static void 362 qat_comp_stream_init(struct rte_mempool *mp __rte_unused, void *opaque, 363 void *obj, unsigned int obj_idx) 364 { 365 struct stream_create_info *info = opaque; 366 struct qat_comp_stream *stream = obj; 367 char mz_name[RTE_MEMZONE_NAMESIZE]; 368 const struct rte_memzone *memzone; 369 struct qat_inter_sgl *ram_banks_desc; 370 371 /* find a memzone for RAM banks */ 372 snprintf(mz_name, RTE_MEMZONE_NAMESIZE, "%s_%u_rambanks", 373 info->comp_dev->qat_dev->name, obj_idx); 374 memzone = rte_memzone_lookup(mz_name); 375 if (memzone == NULL) { 376 /* allocate a memzone for compression state and RAM banks */ 377 memzone = rte_memzone_reserve_aligned(mz_name, 378 QAT_STATE_REGISTERS_MAX_SIZE 379 + sizeof(struct qat_inter_sgl) 380 + QAT_INFLATE_CONTEXT_SIZE, 381 info->socket_id, 382 RTE_MEMZONE_IOVA_CONTIG, QAT_64_BYTE_ALIGN); 383 if (memzone == NULL) { 384 QAT_LOG(ERR, 385 "Can't allocate RAM banks for device %s, object %u", 386 info->comp_dev->qat_dev->name, obj_idx); 387 info->error = -ENOMEM; 388 return; 389 } 390 } 391 392 /* prepare the buffer list descriptor for RAM banks */ 393 ram_banks_desc = (struct qat_inter_sgl *) 394 (((uint8_t *) memzone->addr) + QAT_STATE_REGISTERS_MAX_SIZE); 395 ram_banks_desc->num_bufs = 1; 396 ram_banks_desc->buffers[0].len = QAT_INFLATE_CONTEXT_SIZE; 397 ram_banks_desc->buffers[0].addr = memzone->iova 398 + QAT_STATE_REGISTERS_MAX_SIZE 399 + sizeof(struct qat_inter_sgl); 400 401 memset(stream, 0, qat_comp_stream_size()); 402 stream->memzone = memzone; 403 stream->state_registers_decomp = memzone->addr; 404 stream->state_registers_decomp_phys = memzone->iova; 405 stream->inflate_context = ((uint8_t *) memzone->addr) 406 + QAT_STATE_REGISTERS_MAX_SIZE; 407 stream->inflate_context_phys = memzone->iova 408 + QAT_STATE_REGISTERS_MAX_SIZE; 409 } 410 411 static void 412 qat_comp_stream_destroy(struct rte_mempool *mp __rte_unused, 413 void *opaque __rte_unused, void *obj, 414 unsigned obj_idx __rte_unused) 415 { 416 struct qat_comp_stream *stream = obj; 417 418 rte_memzone_free(stream->memzone); 419 } 420 421 static struct rte_mempool * 422 qat_comp_create_stream_pool(struct qat_comp_dev_private *comp_dev, 423 int socket_id, 424 uint32_t num_elements) 425 { 426 char stream_pool_name[RTE_MEMPOOL_NAMESIZE]; 427 struct rte_mempool *mp; 428 429 snprintf(stream_pool_name, RTE_MEMPOOL_NAMESIZE, 430 "%s_streams", comp_dev->qat_dev->name); 431 432 QAT_LOG(DEBUG, "streampool: %s", stream_pool_name); 433 mp = rte_mempool_lookup(stream_pool_name); 434 435 if (mp != NULL) { 436 QAT_LOG(DEBUG, "streampool already created"); 437 if (mp->size != num_elements) { 438 QAT_LOG(DEBUG, "streampool wrong size - delete it"); 439 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL); 440 rte_mempool_free(mp); 441 mp = NULL; 442 comp_dev->streampool = NULL; 443 } 444 } 445 446 if (mp == NULL) { 447 struct stream_create_info info = { 448 .comp_dev = comp_dev, 449 .socket_id = socket_id, 450 .error = 0 451 }; 452 mp = rte_mempool_create(stream_pool_name, 453 num_elements, 454 qat_comp_stream_size(), 0, 0, 455 NULL, NULL, qat_comp_stream_init, &info, 456 socket_id, 0); 457 if (mp == NULL) { 458 QAT_LOG(ERR, 459 "Err creating mempool %s w %d elements of size %d", 460 stream_pool_name, num_elements, 461 qat_comp_stream_size()); 462 } else if (info.error) { 463 rte_mempool_obj_iter(mp, qat_comp_stream_destroy, NULL); 464 QAT_LOG(ERR, 465 "Destoying mempool %s as at least one element failed initialisation", 466 stream_pool_name); 467 rte_mempool_free(mp); 468 mp = NULL; 469 } 470 } 471 472 return mp; 473 } 474 475 static void 476 _qat_comp_dev_config_clear(struct qat_comp_dev_private *comp_dev) 477 { 478 /* Free intermediate buffers */ 479 if (comp_dev->interm_buff_mz) { 480 char mz_name[RTE_MEMZONE_NAMESIZE]; 481 int i = qat_gen_config[ 482 comp_dev->qat_dev->qat_dev_gen].comp_num_im_bufs_required; 483 484 while (--i >= 0) { 485 snprintf(mz_name, RTE_MEMZONE_NAMESIZE, 486 "%s_inter_buff_%d", 487 comp_dev->qat_dev->name, i); 488 rte_memzone_free(rte_memzone_lookup(mz_name)); 489 } 490 rte_memzone_free(comp_dev->interm_buff_mz); 491 comp_dev->interm_buff_mz = NULL; 492 } 493 494 /* Free private_xform pool */ 495 if (comp_dev->xformpool) { 496 /* Free internal mempool for private xforms */ 497 rte_mempool_free(comp_dev->xformpool); 498 comp_dev->xformpool = NULL; 499 } 500 501 /* Free stream pool */ 502 if (comp_dev->streampool) { 503 rte_mempool_obj_iter(comp_dev->streampool, 504 qat_comp_stream_destroy, NULL); 505 rte_mempool_free(comp_dev->streampool); 506 comp_dev->streampool = NULL; 507 } 508 } 509 510 static int 511 qat_comp_dev_config(struct rte_compressdev *dev, 512 struct rte_compressdev_config *config) 513 { 514 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 515 int ret = 0; 516 517 if (RTE_PMD_QAT_COMP_IM_BUFFER_SIZE == 0) { 518 QAT_LOG(WARNING, 519 "RTE_PMD_QAT_COMP_IM_BUFFER_SIZE = 0 in config file, so" 520 " QAT device can't be used for Dynamic Deflate. " 521 "Did you really intend to do this?"); 522 } else { 523 comp_dev->interm_buff_mz = 524 qat_comp_setup_inter_buffers(comp_dev, 525 RTE_PMD_QAT_COMP_IM_BUFFER_SIZE); 526 if (comp_dev->interm_buff_mz == NULL) { 527 ret = -ENOMEM; 528 goto error_out; 529 } 530 } 531 532 if (config->max_nb_priv_xforms) { 533 comp_dev->xformpool = qat_comp_create_xform_pool(comp_dev, 534 config, config->max_nb_priv_xforms); 535 if (comp_dev->xformpool == NULL) { 536 ret = -ENOMEM; 537 goto error_out; 538 } 539 } else 540 comp_dev->xformpool = NULL; 541 542 if (config->max_nb_streams) { 543 comp_dev->streampool = qat_comp_create_stream_pool(comp_dev, 544 config->socket_id, config->max_nb_streams); 545 if (comp_dev->streampool == NULL) { 546 ret = -ENOMEM; 547 goto error_out; 548 } 549 } else 550 comp_dev->streampool = NULL; 551 552 return 0; 553 554 error_out: 555 _qat_comp_dev_config_clear(comp_dev); 556 return ret; 557 } 558 559 static int 560 qat_comp_dev_start(struct rte_compressdev *dev __rte_unused) 561 { 562 return 0; 563 } 564 565 static void 566 qat_comp_dev_stop(struct rte_compressdev *dev __rte_unused) 567 { 568 569 } 570 571 static int 572 qat_comp_dev_close(struct rte_compressdev *dev) 573 { 574 int i; 575 int ret = 0; 576 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 577 578 for (i = 0; i < dev->data->nb_queue_pairs; i++) { 579 ret = qat_comp_qp_release(dev, i); 580 if (ret < 0) 581 return ret; 582 } 583 584 _qat_comp_dev_config_clear(comp_dev); 585 586 return ret; 587 } 588 589 590 static void 591 qat_comp_dev_info_get(struct rte_compressdev *dev, 592 struct rte_compressdev_info *info) 593 { 594 struct qat_comp_dev_private *comp_dev = dev->data->dev_private; 595 const struct qat_qp_hw_data *comp_hw_qps = 596 qat_gen_config[comp_dev->qat_dev->qat_dev_gen] 597 .qp_hw_data[QAT_SERVICE_COMPRESSION]; 598 599 if (info != NULL) { 600 info->max_nb_queue_pairs = 601 qat_qps_per_service(comp_hw_qps, 602 QAT_SERVICE_COMPRESSION); 603 info->feature_flags = dev->feature_flags; 604 info->capabilities = comp_dev->qat_dev_capabilities; 605 } 606 } 607 608 static uint16_t 609 qat_comp_pmd_enq_deq_dummy_op_burst(void *qp __rte_unused, 610 struct rte_comp_op **ops __rte_unused, 611 uint16_t nb_ops __rte_unused) 612 { 613 QAT_DP_LOG(ERR, "QAT PMD detected wrong FW version !"); 614 return 0; 615 } 616 617 static struct rte_compressdev_ops compress_qat_dummy_ops = { 618 619 /* Device related operations */ 620 .dev_configure = NULL, 621 .dev_start = NULL, 622 .dev_stop = qat_comp_dev_stop, 623 .dev_close = qat_comp_dev_close, 624 .dev_infos_get = NULL, 625 626 .stats_get = NULL, 627 .stats_reset = qat_comp_stats_reset, 628 .queue_pair_setup = NULL, 629 .queue_pair_release = qat_comp_qp_release, 630 631 /* Compression related operations */ 632 .private_xform_create = NULL, 633 .private_xform_free = qat_comp_private_xform_free 634 }; 635 636 static uint16_t 637 qat_comp_pmd_dequeue_first_op_burst(void *qp, struct rte_comp_op **ops, 638 uint16_t nb_ops) 639 { 640 uint16_t ret = qat_dequeue_op_burst(qp, (void **)ops, nb_ops); 641 struct qat_qp *tmp_qp = (struct qat_qp *)qp; 642 643 if (ret) { 644 if ((*ops)->debug_status == 645 (uint64_t)ERR_CODE_QAT_COMP_WRONG_FW) { 646 tmp_qp->qat_dev->comp_dev->compressdev->enqueue_burst = 647 qat_comp_pmd_enq_deq_dummy_op_burst; 648 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst = 649 qat_comp_pmd_enq_deq_dummy_op_burst; 650 651 tmp_qp->qat_dev->comp_dev->compressdev->dev_ops = 652 &compress_qat_dummy_ops; 653 QAT_LOG(ERR, 654 "This QAT hardware doesn't support compression operation"); 655 656 } else { 657 tmp_qp->qat_dev->comp_dev->compressdev->dequeue_burst = 658 (compressdev_dequeue_pkt_burst_t) 659 qat_dequeue_op_burst; 660 } 661 } 662 return ret; 663 } 664 665 static struct rte_compressdev_ops compress_qat_ops = { 666 667 /* Device related operations */ 668 .dev_configure = qat_comp_dev_config, 669 .dev_start = qat_comp_dev_start, 670 .dev_stop = qat_comp_dev_stop, 671 .dev_close = qat_comp_dev_close, 672 .dev_infos_get = qat_comp_dev_info_get, 673 674 .stats_get = qat_comp_stats_get, 675 .stats_reset = qat_comp_stats_reset, 676 .queue_pair_setup = qat_comp_qp_setup, 677 .queue_pair_release = qat_comp_qp_release, 678 679 /* Compression related operations */ 680 .private_xform_create = qat_comp_private_xform_create, 681 .private_xform_free = qat_comp_private_xform_free, 682 .stream_create = qat_comp_stream_create, 683 .stream_free = qat_comp_stream_free 684 }; 685 686 /* An rte_driver is needed in the registration of the device with compressdev. 687 * The actual qat pci's rte_driver can't be used as its name represents 688 * the whole pci device with all services. Think of this as a holder for a name 689 * for the compression part of the pci device. 690 */ 691 static const char qat_comp_drv_name[] = RTE_STR(COMPRESSDEV_NAME_QAT_PMD); 692 static const struct rte_driver compdev_qat_driver = { 693 .name = qat_comp_drv_name, 694 .alias = qat_comp_drv_name 695 }; 696 int 697 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev, 698 struct qat_dev_cmd_param *qat_dev_cmd_param) 699 { 700 int i = 0; 701 struct qat_device_info *qat_dev_instance = 702 &qat_pci_devs[qat_pci_dev->qat_dev_id]; 703 struct rte_compressdev_pmd_init_params init_params = { 704 .name = "", 705 .socket_id = qat_dev_instance->pci_dev->device.numa_node, 706 }; 707 char name[RTE_COMPRESSDEV_NAME_MAX_LEN]; 708 char capa_memz_name[RTE_COMPRESSDEV_NAME_MAX_LEN]; 709 struct rte_compressdev *compressdev; 710 struct qat_comp_dev_private *comp_dev; 711 const struct rte_compressdev_capabilities *capabilities; 712 uint64_t capa_size; 713 714 snprintf(name, RTE_COMPRESSDEV_NAME_MAX_LEN, "%s_%s", 715 qat_pci_dev->name, "comp"); 716 QAT_LOG(DEBUG, "Creating QAT COMP device %s", name); 717 718 /* Populate subset device to use in compressdev device creation */ 719 qat_dev_instance->comp_rte_dev.driver = &compdev_qat_driver; 720 qat_dev_instance->comp_rte_dev.numa_node = 721 qat_dev_instance->pci_dev->device.numa_node; 722 qat_dev_instance->comp_rte_dev.devargs = NULL; 723 724 compressdev = rte_compressdev_pmd_create(name, 725 &(qat_dev_instance->comp_rte_dev), 726 sizeof(struct qat_comp_dev_private), 727 &init_params); 728 729 if (compressdev == NULL) 730 return -ENODEV; 731 732 compressdev->dev_ops = &compress_qat_ops; 733 734 compressdev->enqueue_burst = (compressdev_enqueue_pkt_burst_t) 735 qat_enqueue_comp_op_burst; 736 compressdev->dequeue_burst = qat_comp_pmd_dequeue_first_op_burst; 737 738 compressdev->feature_flags = RTE_COMPDEV_FF_HW_ACCELERATED; 739 740 if (rte_eal_process_type() != RTE_PROC_PRIMARY) 741 return 0; 742 743 snprintf(capa_memz_name, RTE_COMPRESSDEV_NAME_MAX_LEN, 744 "QAT_COMP_CAPA_GEN_%d", 745 qat_pci_dev->qat_dev_gen); 746 747 comp_dev = compressdev->data->dev_private; 748 comp_dev->qat_dev = qat_pci_dev; 749 comp_dev->compressdev = compressdev; 750 751 switch (qat_pci_dev->qat_dev_gen) { 752 case QAT_GEN1: 753 case QAT_GEN2: 754 case QAT_GEN3: 755 capabilities = qat_comp_gen_capabilities; 756 capa_size = sizeof(qat_comp_gen_capabilities); 757 break; 758 default: 759 capabilities = qat_comp_gen_capabilities; 760 capa_size = sizeof(qat_comp_gen_capabilities); 761 QAT_LOG(DEBUG, 762 "QAT gen %d capabilities unknown, default to GEN1", 763 qat_pci_dev->qat_dev_gen); 764 break; 765 } 766 767 comp_dev->capa_mz = rte_memzone_lookup(capa_memz_name); 768 if (comp_dev->capa_mz == NULL) { 769 comp_dev->capa_mz = rte_memzone_reserve(capa_memz_name, 770 capa_size, 771 rte_socket_id(), 0); 772 } 773 if (comp_dev->capa_mz == NULL) { 774 QAT_LOG(DEBUG, 775 "Error allocating memzone for capabilities, destroying PMD for %s", 776 name); 777 memset(&qat_dev_instance->comp_rte_dev, 0, 778 sizeof(qat_dev_instance->comp_rte_dev)); 779 rte_compressdev_pmd_destroy(compressdev); 780 return -EFAULT; 781 } 782 783 memcpy(comp_dev->capa_mz->addr, capabilities, capa_size); 784 comp_dev->qat_dev_capabilities = comp_dev->capa_mz->addr; 785 786 while (1) { 787 if (qat_dev_cmd_param[i].name == NULL) 788 break; 789 if (!strcmp(qat_dev_cmd_param[i].name, COMP_ENQ_THRESHOLD_NAME)) 790 comp_dev->min_enq_burst_threshold = 791 qat_dev_cmd_param[i].val; 792 i++; 793 } 794 qat_pci_dev->comp_dev = comp_dev; 795 796 QAT_LOG(DEBUG, 797 "Created QAT COMP device %s as compressdev instance %d", 798 name, compressdev->data->dev_id); 799 return 0; 800 } 801 802 int 803 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev) 804 { 805 struct qat_comp_dev_private *comp_dev; 806 807 if (qat_pci_dev == NULL) 808 return -ENODEV; 809 810 comp_dev = qat_pci_dev->comp_dev; 811 if (comp_dev == NULL) 812 return 0; 813 814 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 815 rte_memzone_free(qat_pci_dev->comp_dev->capa_mz); 816 817 /* clean up any resources used by the device */ 818 qat_comp_dev_close(comp_dev->compressdev); 819 820 rte_compressdev_pmd_destroy(comp_dev->compressdev); 821 qat_pci_dev->comp_dev = NULL; 822 823 return 0; 824 } 825