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 cpu_set_t cpuset; 254 pthread_t id; 255 uint32_t cpu = rte_lcore_id(); 256 int ret; 257 struct dpaa_portal *dpaa_io_portal; 258 259 BUS_INIT_FUNC_TRACE(); 260 261 if ((size_t)arg == 1 || cpu == LCORE_ID_ANY) 262 cpu = rte_get_master_lcore(); 263 /* if the core id is not supported */ 264 else 265 if (cpu >= RTE_MAX_LCORE) 266 return -1; 267 268 /* Set CPU affinity for this thread */ 269 CPU_ZERO(&cpuset); 270 CPU_SET(cpu, &cpuset); 271 id = pthread_self(); 272 ret = pthread_setaffinity_np(id, sizeof(cpu_set_t), &cpuset); 273 if (ret) { 274 DPAA_BUS_LOG(ERR, "pthread_setaffinity_np failed on " 275 "core :%d with ret: %d", cpu, ret); 276 return ret; 277 } 278 279 /* Initialise bman thread portals */ 280 ret = bman_thread_init(); 281 if (ret) { 282 DPAA_BUS_LOG(ERR, "bman_thread_init failed on " 283 "core %d with ret: %d", cpu, ret); 284 return ret; 285 } 286 287 DPAA_BUS_LOG(DEBUG, "BMAN thread initialized"); 288 289 /* Initialise qman thread portals */ 290 ret = qman_thread_init(); 291 if (ret) { 292 DPAA_BUS_LOG(ERR, "bman_thread_init failed on " 293 "core %d with ret: %d", cpu, ret); 294 bman_thread_finish(); 295 return ret; 296 } 297 298 DPAA_BUS_LOG(DEBUG, "QMAN thread initialized"); 299 300 dpaa_io_portal = rte_malloc(NULL, sizeof(struct dpaa_portal), 301 RTE_CACHE_LINE_SIZE); 302 if (!dpaa_io_portal) { 303 DPAA_BUS_LOG(ERR, "Unable to allocate memory"); 304 bman_thread_finish(); 305 qman_thread_finish(); 306 return -ENOMEM; 307 } 308 309 dpaa_io_portal->qman_idx = qman_get_portal_index(); 310 dpaa_io_portal->bman_idx = bman_get_portal_index(); 311 dpaa_io_portal->tid = syscall(SYS_gettid); 312 313 ret = pthread_setspecific(dpaa_portal_key, (void *)dpaa_io_portal); 314 if (ret) { 315 DPAA_BUS_LOG(ERR, "pthread_setspecific failed on " 316 "core %d with ret: %d", cpu, ret); 317 dpaa_portal_finish(NULL); 318 319 return ret; 320 } 321 322 RTE_PER_LCORE(dpaa_io) = true; 323 324 DPAA_BUS_LOG(DEBUG, "QMAN thread initialized"); 325 326 return 0; 327 } 328 329 int 330 rte_dpaa_portal_fq_init(void *arg, struct qman_fq *fq) 331 { 332 /* Affine above created portal with channel*/ 333 u32 sdqcr; 334 struct qman_portal *qp; 335 int ret; 336 337 if (unlikely(!RTE_PER_LCORE(dpaa_io))) { 338 ret = rte_dpaa_portal_init(arg); 339 if (ret < 0) { 340 DPAA_BUS_LOG(ERR, "portal initialization failure"); 341 return ret; 342 } 343 } 344 345 /* Initialise qman specific portals */ 346 qp = fsl_qman_portal_create(); 347 if (!qp) { 348 DPAA_BUS_LOG(ERR, "Unable to alloc fq portal"); 349 return -1; 350 } 351 fq->qp = qp; 352 sdqcr = QM_SDQCR_CHANNELS_POOL_CONV(fq->ch_id); 353 qman_static_dequeue_add(sdqcr, qp); 354 355 return 0; 356 } 357 358 int rte_dpaa_portal_fq_close(struct qman_fq *fq) 359 { 360 return fsl_qman_portal_destroy(fq->qp); 361 } 362 363 void 364 dpaa_portal_finish(void *arg) 365 { 366 struct dpaa_portal *dpaa_io_portal = (struct dpaa_portal *)arg; 367 368 if (!dpaa_io_portal) { 369 DPAA_BUS_LOG(DEBUG, "Portal already cleaned"); 370 return; 371 } 372 373 bman_thread_finish(); 374 qman_thread_finish(); 375 376 pthread_setspecific(dpaa_portal_key, NULL); 377 378 rte_free(dpaa_io_portal); 379 dpaa_io_portal = NULL; 380 381 RTE_PER_LCORE(dpaa_io) = false; 382 } 383 384 static int 385 rte_dpaa_bus_parse(const char *name, void *out_name) 386 { 387 int i, j; 388 int max_fman = 2, max_macs = 16; 389 char *sep = strchr(name, ':'); 390 391 if (strncmp(name, RTE_STR(FSL_DPAA_BUS_NAME), 392 strlen(RTE_STR(FSL_DPAA_BUS_NAME)))) { 393 return -EINVAL; 394 } 395 396 if (!sep) { 397 DPAA_BUS_ERR("Incorrect device name observed"); 398 return -EINVAL; 399 } 400 401 sep = (char *) (sep + 1); 402 403 for (i = 0; i < max_fman; i++) { 404 for (j = 0; j < max_macs; j++) { 405 char fm_name[16]; 406 snprintf(fm_name, 16, "fm%d-mac%d", i, j); 407 if (strcmp(fm_name, sep) == 0) { 408 if (out_name) 409 strcpy(out_name, sep); 410 return 0; 411 } 412 } 413 } 414 415 for (i = 0; i < RTE_LIBRTE_DPAA_MAX_CRYPTODEV; i++) { 416 char sec_name[16]; 417 418 snprintf(sec_name, 16, "dpaa-sec%d", i); 419 if (strcmp(sec_name, sep) == 0) { 420 if (out_name) 421 strcpy(out_name, sep); 422 return 0; 423 } 424 } 425 426 return -EINVAL; 427 } 428 429 #define DPAA_DEV_PATH1 "/sys/devices/platform/soc/soc:fsl,dpaa" 430 #define DPAA_DEV_PATH2 "/sys/devices/platform/fsl,dpaa" 431 432 static int 433 rte_dpaa_bus_scan(void) 434 { 435 int ret; 436 437 BUS_INIT_FUNC_TRACE(); 438 439 if ((access(DPAA_DEV_PATH1, F_OK) != 0) && 440 (access(DPAA_DEV_PATH2, F_OK) != 0)) { 441 RTE_LOG(DEBUG, EAL, "DPAA Bus not present. Skipping.\n"); 442 return 0; 443 } 444 445 /* Load the device-tree driver */ 446 ret = of_init(); 447 if (ret) { 448 DPAA_BUS_LOG(ERR, "of_init failed with ret: %d", ret); 449 return -1; 450 } 451 452 /* Get the interface configurations from device-tree */ 453 dpaa_netcfg = netcfg_acquire(); 454 if (!dpaa_netcfg) { 455 DPAA_BUS_LOG(ERR, "netcfg_acquire failed"); 456 return -EINVAL; 457 } 458 459 RTE_LOG(NOTICE, EAL, "DPAA Bus Detected\n"); 460 461 if (!dpaa_netcfg->num_ethports) { 462 DPAA_BUS_LOG(INFO, "no network interfaces available"); 463 /* This is not an error */ 464 return 0; 465 } 466 467 #ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER 468 dump_netcfg(dpaa_netcfg); 469 #endif 470 471 DPAA_BUS_LOG(DEBUG, "Number of ethernet devices = %d", 472 dpaa_netcfg->num_ethports); 473 ret = dpaa_create_device_list(); 474 if (ret) { 475 DPAA_BUS_LOG(ERR, "Unable to create device list. (%d)", ret); 476 return ret; 477 } 478 479 /* create the key, supplying a function that'll be invoked 480 * when a portal affined thread will be deleted. 481 */ 482 ret = pthread_key_create(&dpaa_portal_key, dpaa_portal_finish); 483 if (ret) { 484 DPAA_BUS_LOG(DEBUG, "Unable to create pthread key. (%d)", ret); 485 dpaa_clean_device_list(); 486 return ret; 487 } 488 489 return 0; 490 } 491 492 /* register a dpaa bus based dpaa driver */ 493 void 494 rte_dpaa_driver_register(struct rte_dpaa_driver *driver) 495 { 496 RTE_VERIFY(driver); 497 498 BUS_INIT_FUNC_TRACE(); 499 500 TAILQ_INSERT_TAIL(&rte_dpaa_bus.driver_list, driver, next); 501 /* Update Bus references */ 502 driver->dpaa_bus = &rte_dpaa_bus; 503 } 504 505 /* un-register a dpaa bus based dpaa driver */ 506 void 507 rte_dpaa_driver_unregister(struct rte_dpaa_driver *driver) 508 { 509 struct rte_dpaa_bus *dpaa_bus; 510 511 BUS_INIT_FUNC_TRACE(); 512 513 dpaa_bus = driver->dpaa_bus; 514 515 TAILQ_REMOVE(&dpaa_bus->driver_list, driver, next); 516 /* Update Bus references */ 517 driver->dpaa_bus = NULL; 518 } 519 520 static int 521 rte_dpaa_device_match(struct rte_dpaa_driver *drv, 522 struct rte_dpaa_device *dev) 523 { 524 if (!drv || !dev) { 525 DPAA_BUS_DEBUG("Invalid drv or dev received."); 526 return -1; 527 } 528 529 if (drv->drv_type == dev->device_type) 530 return 0; 531 532 return -1; 533 } 534 535 static int 536 rte_dpaa_bus_probe(void) 537 { 538 int ret = -1; 539 struct rte_dpaa_device *dev; 540 struct rte_dpaa_driver *drv; 541 FILE *svr_file = NULL; 542 unsigned int svr_ver; 543 int probe_all = rte_dpaa_bus.bus.conf.scan_mode != RTE_BUS_SCAN_WHITELIST; 544 545 svr_file = fopen(DPAA_SOC_ID_FILE, "r"); 546 if (svr_file) { 547 if (fscanf(svr_file, "svr:%x", &svr_ver) > 0) 548 dpaa_svr_family = svr_ver & SVR_MASK; 549 fclose(svr_file); 550 } 551 552 /* And initialize the PA->VA translation table */ 553 dpaax_iova_table_populate(); 554 555 /* For each registered driver, and device, call the driver->probe */ 556 TAILQ_FOREACH(dev, &rte_dpaa_bus.device_list, next) { 557 TAILQ_FOREACH(drv, &rte_dpaa_bus.driver_list, next) { 558 ret = rte_dpaa_device_match(drv, dev); 559 if (ret) 560 continue; 561 562 if (rte_dev_is_probed(&dev->device)) 563 continue; 564 565 if (!drv->probe || 566 (dev->device.devargs && 567 dev->device.devargs->policy == RTE_DEV_BLACKLISTED)) 568 continue; 569 570 if (probe_all || 571 (dev->device.devargs && 572 dev->device.devargs->policy == 573 RTE_DEV_WHITELISTED)) { 574 ret = drv->probe(drv, dev); 575 if (ret) { 576 DPAA_BUS_ERR("Unable to probe.\n"); 577 } else { 578 dev->driver = drv; 579 dev->device.driver = &drv->driver; 580 } 581 } 582 break; 583 } 584 } 585 586 /* Register DPAA mempool ops only if any DPAA device has 587 * been detected. 588 */ 589 if (!TAILQ_EMPTY(&rte_dpaa_bus.device_list)) 590 rte_mbuf_set_platform_mempool_ops(DPAA_MEMPOOL_OPS_NAME); 591 592 return 0; 593 } 594 595 static struct rte_device * 596 rte_dpaa_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, 597 const void *data) 598 { 599 struct rte_dpaa_device *dev; 600 601 TAILQ_FOREACH(dev, &rte_dpaa_bus.device_list, next) { 602 if (start && &dev->device == start) { 603 start = NULL; /* starting point found */ 604 continue; 605 } 606 607 if (cmp(&dev->device, data) == 0) 608 return &dev->device; 609 } 610 611 return NULL; 612 } 613 614 /* 615 * Get iommu class of DPAA2 devices on the bus. 616 */ 617 static enum rte_iova_mode 618 rte_dpaa_get_iommu_class(void) 619 { 620 if ((access(DPAA_DEV_PATH1, F_OK) != 0) && 621 (access(DPAA_DEV_PATH2, F_OK) != 0)) { 622 return RTE_IOVA_DC; 623 } 624 return RTE_IOVA_PA; 625 } 626 627 static struct rte_dpaa_bus rte_dpaa_bus = { 628 .bus = { 629 .scan = rte_dpaa_bus_scan, 630 .probe = rte_dpaa_bus_probe, 631 .parse = rte_dpaa_bus_parse, 632 .find_device = rte_dpaa_find_device, 633 .get_iommu_class = rte_dpaa_get_iommu_class, 634 }, 635 .device_list = TAILQ_HEAD_INITIALIZER(rte_dpaa_bus.device_list), 636 .driver_list = TAILQ_HEAD_INITIALIZER(rte_dpaa_bus.driver_list), 637 .device_count = 0, 638 }; 639 640 RTE_REGISTER_BUS(FSL_DPAA_BUS_NAME, rte_dpaa_bus.bus); 641 642 RTE_INIT(dpaa_init_log) 643 { 644 dpaa_logtype_bus = rte_log_register("bus.dpaa"); 645 if (dpaa_logtype_bus >= 0) 646 rte_log_set_level(dpaa_logtype_bus, RTE_LOG_NOTICE); 647 648 dpaa_logtype_mempool = rte_log_register("mempool.dpaa"); 649 if (dpaa_logtype_mempool >= 0) 650 rte_log_set_level(dpaa_logtype_mempool, RTE_LOG_NOTICE); 651 652 dpaa_logtype_pmd = rte_log_register("pmd.net.dpaa"); 653 if (dpaa_logtype_pmd >= 0) 654 rte_log_set_level(dpaa_logtype_pmd, RTE_LOG_NOTICE); 655 656 dpaa_logtype_eventdev = rte_log_register("pmd.event.dpaa"); 657 if (dpaa_logtype_eventdev >= 0) 658 rte_log_set_level(dpaa_logtype_eventdev, RTE_LOG_NOTICE); 659 } 660