1 /* SPDX-License-Identifier: BSD-3-Clause 2 * 3 * Copyright 2017 NXP 4 * 5 */ 6 /* System headers */ 7 #include <stdio.h> 8 #include <inttypes.h> 9 #include <unistd.h> 10 #include <limits.h> 11 #include <sched.h> 12 #include <signal.h> 13 #include <pthread.h> 14 #include <sys/types.h> 15 #include <sys/syscall.h> 16 17 #include <rte_byteorder.h> 18 #include <rte_common.h> 19 #include <rte_interrupts.h> 20 #include <rte_log.h> 21 #include <rte_debug.h> 22 #include <rte_atomic.h> 23 #include <rte_branch_prediction.h> 24 #include <rte_memory.h> 25 #include <rte_tailq.h> 26 #include <rte_eal.h> 27 #include <rte_alarm.h> 28 #include <rte_ether.h> 29 #include <rte_ethdev_driver.h> 30 #include <rte_malloc.h> 31 #include <rte_ring.h> 32 #include <rte_bus.h> 33 #include <rte_mbuf_pool_ops.h> 34 35 #include <rte_dpaa_bus.h> 36 #include <rte_dpaa_logs.h> 37 #include <dpaax_iova_table.h> 38 39 #include <fsl_usd.h> 40 #include <fsl_qman.h> 41 #include <fsl_bman.h> 42 #include <of.h> 43 #include <netcfg.h> 44 45 int dpaa_logtype_bus; 46 int dpaa_logtype_mempool; 47 int dpaa_logtype_pmd; 48 int dpaa_logtype_eventdev; 49 50 static struct rte_dpaa_bus rte_dpaa_bus; 51 struct netcfg_info *dpaa_netcfg; 52 53 /* define a variable to hold the portal_key, once created.*/ 54 static pthread_key_t dpaa_portal_key; 55 56 unsigned int dpaa_svr_family; 57 58 #define FSL_DPAA_BUS_NAME dpaa_bus 59 60 RTE_DEFINE_PER_LCORE(bool, dpaa_io); 61 RTE_DEFINE_PER_LCORE(struct dpaa_portal_dqrr, held_bufs); 62 63 static int 64 compare_dpaa_devices(struct rte_dpaa_device *dev1, 65 struct rte_dpaa_device *dev2) 66 { 67 int comp = 0; 68 69 /* Segragating ETH from SEC devices */ 70 if (dev1->device_type > dev2->device_type) 71 comp = 1; 72 else if (dev1->device_type < dev2->device_type) 73 comp = -1; 74 else 75 comp = 0; 76 77 if ((comp != 0) || (dev1->device_type != FSL_DPAA_ETH)) 78 return comp; 79 80 if (dev1->id.fman_id > dev2->id.fman_id) { 81 comp = 1; 82 } else if (dev1->id.fman_id < dev2->id.fman_id) { 83 comp = -1; 84 } else { 85 /* FMAN ids match, check for mac_id */ 86 if (dev1->id.mac_id > dev2->id.mac_id) 87 comp = 1; 88 else if (dev1->id.mac_id < dev2->id.mac_id) 89 comp = -1; 90 else 91 comp = 0; 92 } 93 94 return comp; 95 } 96 97 static inline void 98 dpaa_add_to_device_list(struct rte_dpaa_device *newdev) 99 { 100 int comp, inserted = 0; 101 struct rte_dpaa_device *dev = NULL; 102 struct rte_dpaa_device *tdev = NULL; 103 104 TAILQ_FOREACH_SAFE(dev, &rte_dpaa_bus.device_list, next, tdev) { 105 comp = compare_dpaa_devices(newdev, dev); 106 if (comp < 0) { 107 TAILQ_INSERT_BEFORE(dev, newdev, next); 108 inserted = 1; 109 break; 110 } 111 } 112 113 if (!inserted) 114 TAILQ_INSERT_TAIL(&rte_dpaa_bus.device_list, newdev, next); 115 } 116 117 /* 118 * Reads the SEC device from DTS 119 * Returns -1 if SEC devices not available, 0 otherwise 120 */ 121 static inline int 122 dpaa_sec_available(void) 123 { 124 const struct device_node *caam_node; 125 126 for_each_compatible_node(caam_node, NULL, "fsl,sec-v4.0") { 127 return 0; 128 } 129 130 return -1; 131 } 132 133 static void dpaa_clean_device_list(void); 134 135 static struct rte_devargs * 136 dpaa_devargs_lookup(struct rte_dpaa_device *dev) 137 { 138 struct rte_devargs *devargs; 139 char dev_name[32]; 140 141 RTE_EAL_DEVARGS_FOREACH("dpaa_bus", devargs) { 142 devargs->bus->parse(devargs->name, &dev_name); 143 if (strcmp(dev_name, dev->device.name) == 0) { 144 DPAA_BUS_INFO("**Devargs matched %s", dev_name); 145 return devargs; 146 } 147 } 148 return NULL; 149 } 150 151 static int 152 dpaa_create_device_list(void) 153 { 154 int i; 155 int ret; 156 struct rte_dpaa_device *dev; 157 struct fm_eth_port_cfg *cfg; 158 struct fman_if *fman_intf; 159 160 /* Creating Ethernet Devices */ 161 for (i = 0; i < dpaa_netcfg->num_ethports; i++) { 162 dev = calloc(1, sizeof(struct rte_dpaa_device)); 163 if (!dev) { 164 DPAA_BUS_LOG(ERR, "Failed to allocate ETH devices"); 165 ret = -ENOMEM; 166 goto cleanup; 167 } 168 169 dev->device.bus = &rte_dpaa_bus.bus; 170 171 cfg = &dpaa_netcfg->port_cfg[i]; 172 fman_intf = cfg->fman_if; 173 174 /* Device identifiers */ 175 dev->id.fman_id = fman_intf->fman_idx + 1; 176 dev->id.mac_id = fman_intf->mac_idx; 177 dev->device_type = FSL_DPAA_ETH; 178 dev->id.dev_id = i; 179 180 /* Create device name */ 181 memset(dev->name, 0, RTE_ETH_NAME_MAX_LEN); 182 sprintf(dev->name, "fm%d-mac%d", (fman_intf->fman_idx + 1), 183 fman_intf->mac_idx); 184 DPAA_BUS_LOG(INFO, "%s netdev added", dev->name); 185 dev->device.name = dev->name; 186 dev->device.devargs = dpaa_devargs_lookup(dev); 187 188 dpaa_add_to_device_list(dev); 189 } 190 191 rte_dpaa_bus.device_count = i; 192 193 /* Unlike case of ETH, RTE_LIBRTE_DPAA_MAX_CRYPTODEV SEC devices are 194 * constantly created only if "sec" property is found in the device 195 * tree. Logically there is no limit for number of devices (QI 196 * interfaces) that can be created. 197 */ 198 199 if (dpaa_sec_available()) { 200 DPAA_BUS_LOG(INFO, "DPAA SEC devices are not available"); 201 return 0; 202 } 203 204 /* Creating SEC Devices */ 205 for (i = 0; i < RTE_LIBRTE_DPAA_MAX_CRYPTODEV; i++) { 206 dev = calloc(1, sizeof(struct rte_dpaa_device)); 207 if (!dev) { 208 DPAA_BUS_LOG(ERR, "Failed to allocate SEC devices"); 209 ret = -1; 210 goto cleanup; 211 } 212 213 dev->device_type = FSL_DPAA_CRYPTO; 214 dev->id.dev_id = rte_dpaa_bus.device_count + i; 215 216 /* Even though RTE_CRYPTODEV_NAME_MAX_LEN is valid length of 217 * crypto PMD, using RTE_ETH_NAME_MAX_LEN as that is the size 218 * allocated for dev->name/ 219 */ 220 memset(dev->name, 0, RTE_ETH_NAME_MAX_LEN); 221 sprintf(dev->name, "dpaa-sec%d", i); 222 DPAA_BUS_LOG(INFO, "%s cryptodev added", dev->name); 223 dev->device.name = dev->name; 224 dev->device.devargs = dpaa_devargs_lookup(dev); 225 226 dpaa_add_to_device_list(dev); 227 } 228 229 rte_dpaa_bus.device_count += i; 230 231 return 0; 232 233 cleanup: 234 dpaa_clean_device_list(); 235 return ret; 236 } 237 238 static void 239 dpaa_clean_device_list(void) 240 { 241 struct rte_dpaa_device *dev = NULL; 242 struct rte_dpaa_device *tdev = NULL; 243 244 TAILQ_FOREACH_SAFE(dev, &rte_dpaa_bus.device_list, next, tdev) { 245 TAILQ_REMOVE(&rte_dpaa_bus.device_list, dev, next); 246 free(dev); 247 dev = NULL; 248 } 249 } 250 251 int rte_dpaa_portal_init(void *arg) 252 { 253 pthread_t id; 254 unsigned int cpu, lcore = rte_lcore_id(); 255 int ret; 256 struct dpaa_portal *dpaa_io_portal; 257 258 BUS_INIT_FUNC_TRACE(); 259 260 if ((size_t)arg == 1 || lcore == LCORE_ID_ANY) 261 lcore = rte_get_master_lcore(); 262 else 263 if (lcore >= RTE_MAX_LCORE) 264 return -1; 265 266 cpu = lcore_config[lcore].core_id; 267 268 /* Set CPU affinity for this thread.*/ 269 id = pthread_self(); 270 ret = pthread_setaffinity_np(id, sizeof(cpu_set_t), 271 &lcore_config[lcore].cpuset); 272 if (ret) { 273 DPAA_BUS_LOG(ERR, "pthread_setaffinity_np failed on core :%u" 274 " (lcore=%u) with ret: %d", cpu, lcore, ret); 275 return ret; 276 } 277 278 /* Initialise bman thread portals */ 279 ret = bman_thread_init(); 280 if (ret) { 281 DPAA_BUS_LOG(ERR, "bman_thread_init failed on core %u" 282 " (lcore=%u) with ret: %d", cpu, lcore, ret); 283 return ret; 284 } 285 286 DPAA_BUS_LOG(DEBUG, "BMAN thread initialized - CPU=%d lcore=%d", 287 cpu, lcore); 288 289 /* Initialise qman thread portals */ 290 ret = qman_thread_init(); 291 if (ret) { 292 DPAA_BUS_LOG(ERR, "qman_thread_init failed on core %u" 293 " (lcore=%u) with ret: %d", cpu, lcore, ret); 294 bman_thread_finish(); 295 return ret; 296 } 297 298 DPAA_BUS_LOG(DEBUG, "QMAN thread initialized - CPU=%d lcore=%d", 299 cpu, lcore); 300 301 dpaa_io_portal = rte_malloc(NULL, sizeof(struct dpaa_portal), 302 RTE_CACHE_LINE_SIZE); 303 if (!dpaa_io_portal) { 304 DPAA_BUS_LOG(ERR, "Unable to allocate memory"); 305 bman_thread_finish(); 306 qman_thread_finish(); 307 return -ENOMEM; 308 } 309 310 dpaa_io_portal->qman_idx = qman_get_portal_index(); 311 dpaa_io_portal->bman_idx = bman_get_portal_index(); 312 dpaa_io_portal->tid = syscall(SYS_gettid); 313 314 ret = pthread_setspecific(dpaa_portal_key, (void *)dpaa_io_portal); 315 if (ret) { 316 DPAA_BUS_LOG(ERR, "pthread_setspecific failed on core %u" 317 " (lcore=%u) with ret: %d", cpu, lcore, ret); 318 dpaa_portal_finish(NULL); 319 320 return ret; 321 } 322 323 RTE_PER_LCORE(dpaa_io) = true; 324 325 DPAA_BUS_LOG(DEBUG, "QMAN thread initialized"); 326 327 return 0; 328 } 329 330 int 331 rte_dpaa_portal_fq_init(void *arg, struct qman_fq *fq) 332 { 333 /* Affine above created portal with channel*/ 334 u32 sdqcr; 335 struct qman_portal *qp; 336 int ret; 337 338 if (unlikely(!RTE_PER_LCORE(dpaa_io))) { 339 ret = rte_dpaa_portal_init(arg); 340 if (ret < 0) { 341 DPAA_BUS_LOG(ERR, "portal initialization failure"); 342 return ret; 343 } 344 } 345 346 /* Initialise qman specific portals */ 347 qp = fsl_qman_portal_create(); 348 if (!qp) { 349 DPAA_BUS_LOG(ERR, "Unable to alloc fq portal"); 350 return -1; 351 } 352 fq->qp = qp; 353 sdqcr = QM_SDQCR_CHANNELS_POOL_CONV(fq->ch_id); 354 qman_static_dequeue_add(sdqcr, qp); 355 356 return 0; 357 } 358 359 int rte_dpaa_portal_fq_close(struct qman_fq *fq) 360 { 361 return fsl_qman_portal_destroy(fq->qp); 362 } 363 364 void 365 dpaa_portal_finish(void *arg) 366 { 367 struct dpaa_portal *dpaa_io_portal = (struct dpaa_portal *)arg; 368 369 if (!dpaa_io_portal) { 370 DPAA_BUS_LOG(DEBUG, "Portal already cleaned"); 371 return; 372 } 373 374 bman_thread_finish(); 375 qman_thread_finish(); 376 377 pthread_setspecific(dpaa_portal_key, NULL); 378 379 rte_free(dpaa_io_portal); 380 dpaa_io_portal = NULL; 381 382 RTE_PER_LCORE(dpaa_io) = false; 383 } 384 385 static int 386 rte_dpaa_bus_parse(const char *name, void *out_name) 387 { 388 int i, j; 389 int max_fman = 2, max_macs = 16; 390 char *sep = strchr(name, ':'); 391 392 if (strncmp(name, RTE_STR(FSL_DPAA_BUS_NAME), 393 strlen(RTE_STR(FSL_DPAA_BUS_NAME)))) { 394 return -EINVAL; 395 } 396 397 if (!sep) { 398 DPAA_BUS_ERR("Incorrect device name observed"); 399 return -EINVAL; 400 } 401 402 sep = (char *) (sep + 1); 403 404 for (i = 0; i < max_fman; i++) { 405 for (j = 0; j < max_macs; j++) { 406 char fm_name[16]; 407 snprintf(fm_name, 16, "fm%d-mac%d", i, j); 408 if (strcmp(fm_name, sep) == 0) { 409 if (out_name) 410 strcpy(out_name, sep); 411 return 0; 412 } 413 } 414 } 415 416 for (i = 0; i < RTE_LIBRTE_DPAA_MAX_CRYPTODEV; i++) { 417 char sec_name[16]; 418 419 snprintf(sec_name, 16, "dpaa-sec%d", i); 420 if (strcmp(sec_name, sep) == 0) { 421 if (out_name) 422 strcpy(out_name, sep); 423 return 0; 424 } 425 } 426 427 return -EINVAL; 428 } 429 430 #define DPAA_DEV_PATH1 "/sys/devices/platform/soc/soc:fsl,dpaa" 431 #define DPAA_DEV_PATH2 "/sys/devices/platform/fsl,dpaa" 432 433 static int 434 rte_dpaa_bus_scan(void) 435 { 436 int ret; 437 438 BUS_INIT_FUNC_TRACE(); 439 440 if ((access(DPAA_DEV_PATH1, F_OK) != 0) && 441 (access(DPAA_DEV_PATH2, F_OK) != 0)) { 442 RTE_LOG(DEBUG, EAL, "DPAA Bus not present. Skipping.\n"); 443 return 0; 444 } 445 446 /* Load the device-tree driver */ 447 ret = of_init(); 448 if (ret) { 449 DPAA_BUS_LOG(ERR, "of_init failed with ret: %d", ret); 450 return -1; 451 } 452 453 /* Get the interface configurations from device-tree */ 454 dpaa_netcfg = netcfg_acquire(); 455 if (!dpaa_netcfg) { 456 DPAA_BUS_LOG(ERR, "netcfg_acquire failed"); 457 return -EINVAL; 458 } 459 460 RTE_LOG(NOTICE, EAL, "DPAA Bus Detected\n"); 461 462 if (!dpaa_netcfg->num_ethports) { 463 DPAA_BUS_LOG(INFO, "no network interfaces available"); 464 /* This is not an error */ 465 return 0; 466 } 467 468 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER 469 dump_netcfg(dpaa_netcfg); 470 #endif 471 472 DPAA_BUS_LOG(DEBUG, "Number of ethernet devices = %d", 473 dpaa_netcfg->num_ethports); 474 ret = dpaa_create_device_list(); 475 if (ret) { 476 DPAA_BUS_LOG(ERR, "Unable to create device list. (%d)", ret); 477 return ret; 478 } 479 480 /* create the key, supplying a function that'll be invoked 481 * when a portal affined thread will be deleted. 482 */ 483 ret = pthread_key_create(&dpaa_portal_key, dpaa_portal_finish); 484 if (ret) { 485 DPAA_BUS_LOG(DEBUG, "Unable to create pthread key. (%d)", ret); 486 dpaa_clean_device_list(); 487 return ret; 488 } 489 490 return 0; 491 } 492 493 /* register a dpaa bus based dpaa driver */ 494 void 495 rte_dpaa_driver_register(struct rte_dpaa_driver *driver) 496 { 497 RTE_VERIFY(driver); 498 499 BUS_INIT_FUNC_TRACE(); 500 501 TAILQ_INSERT_TAIL(&rte_dpaa_bus.driver_list, driver, next); 502 /* Update Bus references */ 503 driver->dpaa_bus = &rte_dpaa_bus; 504 } 505 506 /* un-register a dpaa bus based dpaa driver */ 507 void 508 rte_dpaa_driver_unregister(struct rte_dpaa_driver *driver) 509 { 510 struct rte_dpaa_bus *dpaa_bus; 511 512 BUS_INIT_FUNC_TRACE(); 513 514 dpaa_bus = driver->dpaa_bus; 515 516 TAILQ_REMOVE(&dpaa_bus->driver_list, driver, next); 517 /* Update Bus references */ 518 driver->dpaa_bus = NULL; 519 } 520 521 static int 522 rte_dpaa_device_match(struct rte_dpaa_driver *drv, 523 struct rte_dpaa_device *dev) 524 { 525 if (!drv || !dev) { 526 DPAA_BUS_DEBUG("Invalid drv or dev received."); 527 return -1; 528 } 529 530 if (drv->drv_type == dev->device_type) 531 return 0; 532 533 return -1; 534 } 535 536 static int 537 rte_dpaa_bus_probe(void) 538 { 539 int ret = -1; 540 struct rte_dpaa_device *dev; 541 struct rte_dpaa_driver *drv; 542 FILE *svr_file = NULL; 543 unsigned int svr_ver; 544 int probe_all = rte_dpaa_bus.bus.conf.scan_mode != RTE_BUS_SCAN_WHITELIST; 545 546 /* If DPAA bus is not present nothing needs to be done */ 547 if (TAILQ_EMPTY(&rte_dpaa_bus.device_list)) 548 return 0; 549 550 svr_file = fopen(DPAA_SOC_ID_FILE, "r"); 551 if (svr_file) { 552 if (fscanf(svr_file, "svr:%x", &svr_ver) > 0) 553 dpaa_svr_family = svr_ver & SVR_MASK; 554 fclose(svr_file); 555 } 556 557 /* And initialize the PA->VA translation table */ 558 dpaax_iova_table_populate(); 559 560 /* For each registered driver, and device, call the driver->probe */ 561 TAILQ_FOREACH(dev, &rte_dpaa_bus.device_list, next) { 562 TAILQ_FOREACH(drv, &rte_dpaa_bus.driver_list, next) { 563 ret = rte_dpaa_device_match(drv, dev); 564 if (ret) 565 continue; 566 567 if (rte_dev_is_probed(&dev->device)) 568 continue; 569 570 if (!drv->probe || 571 (dev->device.devargs && 572 dev->device.devargs->policy == RTE_DEV_BLACKLISTED)) 573 continue; 574 575 if (probe_all || 576 (dev->device.devargs && 577 dev->device.devargs->policy == 578 RTE_DEV_WHITELISTED)) { 579 ret = drv->probe(drv, dev); 580 if (ret) { 581 DPAA_BUS_ERR("Unable to probe.\n"); 582 } else { 583 dev->driver = drv; 584 dev->device.driver = &drv->driver; 585 } 586 } 587 break; 588 } 589 } 590 591 /* Register DPAA mempool ops only if any DPAA device has 592 * been detected. 593 */ 594 rte_mbuf_set_platform_mempool_ops(DPAA_MEMPOOL_OPS_NAME); 595 596 return 0; 597 } 598 599 static struct rte_device * 600 rte_dpaa_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, 601 const void *data) 602 { 603 struct rte_dpaa_device *dev; 604 605 TAILQ_FOREACH(dev, &rte_dpaa_bus.device_list, next) { 606 if (start && &dev->device == start) { 607 start = NULL; /* starting point found */ 608 continue; 609 } 610 611 if (cmp(&dev->device, data) == 0) 612 return &dev->device; 613 } 614 615 return NULL; 616 } 617 618 /* 619 * Get iommu class of DPAA2 devices on the bus. 620 */ 621 static enum rte_iova_mode 622 rte_dpaa_get_iommu_class(void) 623 { 624 if ((access(DPAA_DEV_PATH1, F_OK) != 0) && 625 (access(DPAA_DEV_PATH2, F_OK) != 0)) { 626 return RTE_IOVA_DC; 627 } 628 return RTE_IOVA_PA; 629 } 630 631 static struct rte_dpaa_bus rte_dpaa_bus = { 632 .bus = { 633 .scan = rte_dpaa_bus_scan, 634 .probe = rte_dpaa_bus_probe, 635 .parse = rte_dpaa_bus_parse, 636 .find_device = rte_dpaa_find_device, 637 .get_iommu_class = rte_dpaa_get_iommu_class, 638 }, 639 .device_list = TAILQ_HEAD_INITIALIZER(rte_dpaa_bus.device_list), 640 .driver_list = TAILQ_HEAD_INITIALIZER(rte_dpaa_bus.driver_list), 641 .device_count = 0, 642 }; 643 644 RTE_REGISTER_BUS(FSL_DPAA_BUS_NAME, rte_dpaa_bus.bus); 645 646 RTE_INIT(dpaa_init_log) 647 { 648 dpaa_logtype_bus = rte_log_register("bus.dpaa"); 649 if (dpaa_logtype_bus >= 0) 650 rte_log_set_level(dpaa_logtype_bus, RTE_LOG_NOTICE); 651 652 dpaa_logtype_mempool = rte_log_register("mempool.dpaa"); 653 if (dpaa_logtype_mempool >= 0) 654 rte_log_set_level(dpaa_logtype_mempool, RTE_LOG_NOTICE); 655 656 dpaa_logtype_pmd = rte_log_register("pmd.net.dpaa"); 657 if (dpaa_logtype_pmd >= 0) 658 rte_log_set_level(dpaa_logtype_pmd, RTE_LOG_NOTICE); 659 660 dpaa_logtype_eventdev = rte_log_register("pmd.event.dpaa"); 661 if (dpaa_logtype_eventdev >= 0) 662 rte_log_set_level(dpaa_logtype_eventdev, RTE_LOG_NOTICE); 663 } 664