1 /* 2 * Copyright (c) 2014-2020 The Linux Foundation. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for 5 * any purpose with or without fee is hereby granted, provided that the 6 * above copyright notice and this permission notice appear in all 7 * copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <scheduler_api.h> 20 #include <scheduler_core.h> 21 #include <qdf_atomic.h> 22 #include <qdf_module.h> 23 #include <qdf_platform.h> 24 25 QDF_STATUS scheduler_disable(void) 26 { 27 struct scheduler_ctx *sched_ctx; 28 29 sched_debug("Disabling Scheduler"); 30 31 sched_ctx = scheduler_get_context(); 32 QDF_BUG(sched_ctx); 33 if (!sched_ctx) 34 return QDF_STATUS_E_INVAL; 35 36 /* send shutdown signal to scheduler thread */ 37 qdf_atomic_set_bit(MC_SHUTDOWN_EVENT_MASK, &sched_ctx->sch_event_flag); 38 qdf_atomic_set_bit(MC_POST_EVENT_MASK, &sched_ctx->sch_event_flag); 39 qdf_wake_up_interruptible(&sched_ctx->sch_wait_queue); 40 41 /* wait for scheduler thread to shutdown */ 42 qdf_wait_single_event(&sched_ctx->sch_shutdown, 0); 43 sched_ctx->sch_thread = NULL; 44 45 /* flush any unprocessed scheduler messages */ 46 scheduler_queues_flush(sched_ctx); 47 48 return QDF_STATUS_SUCCESS; 49 } 50 51 static inline void scheduler_watchdog_notify(struct scheduler_ctx *sched) 52 { 53 char symbol[QDF_SYMBOL_LEN]; 54 55 if (sched->watchdog_callback) 56 qdf_sprint_symbol(symbol, sched->watchdog_callback); 57 58 sched_fatal("Callback %s (type 0x%x) exceeded its allotted time of %ds", 59 sched->watchdog_callback ? symbol : "<null>", 60 sched->watchdog_msg_type, 61 SCHEDULER_WATCHDOG_TIMEOUT / 1000); 62 } 63 64 static void scheduler_watchdog_timeout(void *arg) 65 { 66 struct scheduler_ctx *sched = arg; 67 68 if (qdf_is_recovering()) { 69 sched_debug("Recovery is in progress ignore timeout"); 70 return; 71 } 72 73 scheduler_watchdog_notify(sched); 74 if (sched->sch_thread) 75 qdf_print_thread_trace(sched->sch_thread); 76 77 /* avoid crashing during shutdown */ 78 if (qdf_atomic_test_bit(MC_SHUTDOWN_EVENT_MASK, &sched->sch_event_flag)) 79 return; 80 81 QDF_DEBUG_PANIC("Going down for Scheduler Watchdog Bite!"); 82 } 83 84 QDF_STATUS scheduler_enable(void) 85 { 86 struct scheduler_ctx *sched_ctx; 87 88 sched_debug("Enabling Scheduler"); 89 90 sched_ctx = scheduler_get_context(); 91 QDF_BUG(sched_ctx); 92 if (!sched_ctx) 93 return QDF_STATUS_E_INVAL; 94 95 qdf_atomic_clear_bit(MC_SHUTDOWN_EVENT_MASK, 96 &sched_ctx->sch_event_flag); 97 qdf_atomic_clear_bit(MC_POST_EVENT_MASK, 98 &sched_ctx->sch_event_flag); 99 100 /* create the scheduler thread */ 101 sched_ctx->sch_thread = qdf_create_thread(scheduler_thread, sched_ctx, 102 "scheduler_thread"); 103 if (!sched_ctx->sch_thread) { 104 sched_fatal("Failed to create scheduler thread"); 105 return QDF_STATUS_E_RESOURCES; 106 } 107 108 sched_debug("Scheduler thread created"); 109 110 /* wait for the scheduler thread to startup */ 111 qdf_wake_up_process(sched_ctx->sch_thread); 112 qdf_wait_single_event(&sched_ctx->sch_start_event, 0); 113 114 sched_debug("Scheduler thread started"); 115 116 return QDF_STATUS_SUCCESS; 117 } 118 119 QDF_STATUS scheduler_init(void) 120 { 121 QDF_STATUS status; 122 struct scheduler_ctx *sched_ctx; 123 124 sched_debug("Initializing Scheduler"); 125 126 status = scheduler_create_ctx(); 127 if (QDF_IS_STATUS_ERROR(status)) { 128 sched_fatal("Failed to create context; status:%d", status); 129 return status; 130 } 131 132 sched_ctx = scheduler_get_context(); 133 QDF_BUG(sched_ctx); 134 if (!sched_ctx) { 135 status = QDF_STATUS_E_FAILURE; 136 goto ctx_destroy; 137 } 138 139 status = scheduler_queues_init(sched_ctx); 140 if (QDF_IS_STATUS_ERROR(status)) { 141 sched_fatal("Failed to init queues; status:%d", status); 142 goto ctx_destroy; 143 } 144 145 status = qdf_event_create(&sched_ctx->sch_start_event); 146 if (QDF_IS_STATUS_ERROR(status)) { 147 sched_fatal("Failed to create start event; status:%d", status); 148 goto queues_deinit; 149 } 150 151 status = qdf_event_create(&sched_ctx->sch_shutdown); 152 if (QDF_IS_STATUS_ERROR(status)) { 153 sched_fatal("Failed to create shutdown event; status:%d", 154 status); 155 goto start_event_destroy; 156 } 157 158 status = qdf_event_create(&sched_ctx->resume_sch_event); 159 if (QDF_IS_STATUS_ERROR(status)) { 160 sched_fatal("Failed to create resume event; status:%d", status); 161 goto shutdown_event_destroy; 162 } 163 164 qdf_spinlock_create(&sched_ctx->sch_thread_lock); 165 qdf_init_waitqueue_head(&sched_ctx->sch_wait_queue); 166 sched_ctx->sch_event_flag = 0; 167 qdf_timer_init(NULL, 168 &sched_ctx->watchdog_timer, 169 &scheduler_watchdog_timeout, 170 sched_ctx, 171 QDF_TIMER_TYPE_SW); 172 173 qdf_register_mc_timer_callback(scheduler_mc_timer_callback); 174 175 return QDF_STATUS_SUCCESS; 176 177 shutdown_event_destroy: 178 qdf_event_destroy(&sched_ctx->sch_shutdown); 179 180 start_event_destroy: 181 qdf_event_destroy(&sched_ctx->sch_start_event); 182 183 queues_deinit: 184 scheduler_queues_deinit(sched_ctx); 185 186 ctx_destroy: 187 scheduler_destroy_ctx(); 188 189 return status; 190 } 191 192 QDF_STATUS scheduler_deinit(void) 193 { 194 QDF_STATUS status; 195 struct scheduler_ctx *sched_ctx; 196 197 sched_debug("Deinitializing Scheduler"); 198 199 sched_ctx = scheduler_get_context(); 200 QDF_BUG(sched_ctx); 201 if (!sched_ctx) 202 return QDF_STATUS_E_INVAL; 203 204 qdf_timer_free(&sched_ctx->watchdog_timer); 205 qdf_spinlock_destroy(&sched_ctx->sch_thread_lock); 206 qdf_event_destroy(&sched_ctx->resume_sch_event); 207 qdf_event_destroy(&sched_ctx->sch_shutdown); 208 qdf_event_destroy(&sched_ctx->sch_start_event); 209 210 status = scheduler_queues_deinit(sched_ctx); 211 if (QDF_IS_STATUS_ERROR(status)) 212 sched_err("Failed to deinit queues; status:%d", status); 213 214 status = scheduler_destroy_ctx(); 215 if (QDF_IS_STATUS_ERROR(status)) 216 sched_err("Failed to destroy context; status:%d", status); 217 218 return QDF_STATUS_SUCCESS; 219 } 220 221 QDF_STATUS scheduler_post_msg_by_priority(uint32_t qid, 222 struct scheduler_msg *msg, 223 bool is_high_priority) 224 { 225 uint8_t qidx; 226 struct scheduler_mq_type *target_mq; 227 struct scheduler_msg *queue_msg; 228 struct scheduler_ctx *sched_ctx; 229 uint16_t src_id; 230 uint16_t dest_id; 231 uint16_t que_id; 232 233 QDF_BUG(msg); 234 if (!msg) 235 return QDF_STATUS_E_INVAL; 236 237 sched_ctx = scheduler_get_context(); 238 QDF_BUG(sched_ctx); 239 if (!sched_ctx) 240 return QDF_STATUS_E_INVAL; 241 242 if (!sched_ctx->sch_thread) { 243 sched_err("Cannot post message; scheduler thread is stopped"); 244 return QDF_STATUS_E_FAILURE; 245 } 246 247 if (msg->reserved != 0 && msg->reserved != SYS_MSG_COOKIE) { 248 QDF_DEBUG_PANIC("Scheduler messages must be initialized"); 249 return QDF_STATUS_E_FAILURE; 250 } 251 252 dest_id = scheduler_get_dest_id(qid); 253 src_id = scheduler_get_src_id(qid); 254 que_id = scheduler_get_que_id(qid); 255 256 if (que_id >= QDF_MODULE_ID_MAX || src_id >= QDF_MODULE_ID_MAX || 257 dest_id >= QDF_MODULE_ID_MAX) { 258 sched_err("Src_id/Dest_id invalid, cannot post message"); 259 return QDF_STATUS_E_FAILURE; 260 } 261 /* Target_If is a special message queue in phase 3 convergence beacause 262 * its used by both legacy WMA and as well as new UMAC components which 263 * directly populate callback handlers in message body. 264 * 1) WMA legacy messages should not have callback 265 * 2) New target_if message needs to have valid callback 266 * Clear callback handler for legacy WMA messages such that in case 267 * if someone is sending legacy WMA message from stack which has 268 * uninitialized callback then its handled properly. Also change 269 * legacy WMA message queue id to target_if queue such that its always 270 * handled in right order. 271 */ 272 if (QDF_MODULE_ID_WMA == que_id) { 273 msg->callback = NULL; 274 /* change legacy WMA message id to new target_if mq id */ 275 que_id = QDF_MODULE_ID_TARGET_IF; 276 } 277 qdf_mtrace(src_id, dest_id, msg->type, 0xFF, 0); 278 279 qidx = sched_ctx->queue_ctx.scheduler_msg_qid_to_qidx[que_id]; 280 if (qidx >= SCHEDULER_NUMBER_OF_MSG_QUEUE) { 281 sched_err("Scheduler is deinitialized ignore msg"); 282 return QDF_STATUS_E_FAILURE; 283 } 284 285 if (!sched_ctx->queue_ctx.scheduler_msg_process_fn[qidx]) { 286 QDF_DEBUG_PANIC("callback not registered for qid[%d]", que_id); 287 return QDF_STATUS_E_FAILURE; 288 } 289 290 target_mq = &(sched_ctx->queue_ctx.sch_msg_q[qidx]); 291 292 queue_msg = scheduler_core_msg_dup(msg); 293 if (!queue_msg) 294 return QDF_STATUS_E_NOMEM; 295 296 if (is_high_priority) 297 scheduler_mq_put_front(target_mq, queue_msg); 298 else 299 scheduler_mq_put(target_mq, queue_msg); 300 301 qdf_atomic_set_bit(MC_POST_EVENT_MASK, &sched_ctx->sch_event_flag); 302 qdf_wake_up_interruptible(&sched_ctx->sch_wait_queue); 303 304 return QDF_STATUS_SUCCESS; 305 } 306 307 QDF_STATUS scheduler_register_module(QDF_MODULE_ID qid, 308 scheduler_msg_process_fn_t callback) 309 { 310 struct scheduler_mq_ctx *ctx; 311 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 312 313 sched_enter(); 314 315 QDF_BUG(sched_ctx); 316 if (!sched_ctx) 317 return QDF_STATUS_E_FAILURE; 318 319 if (sched_ctx->sch_last_qidx >= SCHEDULER_NUMBER_OF_MSG_QUEUE) { 320 sched_err("Already registered max %d no of message queues", 321 SCHEDULER_NUMBER_OF_MSG_QUEUE); 322 return QDF_STATUS_E_FAILURE; 323 } 324 325 ctx = &sched_ctx->queue_ctx; 326 ctx->scheduler_msg_qid_to_qidx[qid] = sched_ctx->sch_last_qidx; 327 ctx->sch_msg_q[sched_ctx->sch_last_qidx].qid = qid; 328 ctx->scheduler_msg_process_fn[sched_ctx->sch_last_qidx] = callback; 329 sched_ctx->sch_last_qidx++; 330 331 sched_exit(); 332 333 return QDF_STATUS_SUCCESS; 334 } 335 336 QDF_STATUS scheduler_deregister_module(QDF_MODULE_ID qid) 337 { 338 struct scheduler_mq_ctx *ctx; 339 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 340 uint8_t qidx; 341 342 sched_enter(); 343 344 QDF_BUG(sched_ctx); 345 if (!sched_ctx) 346 return QDF_STATUS_E_FAILURE; 347 348 ctx = &sched_ctx->queue_ctx; 349 qidx = ctx->scheduler_msg_qid_to_qidx[qid]; 350 ctx->scheduler_msg_process_fn[qidx] = NULL; 351 sched_ctx->sch_last_qidx--; 352 ctx->scheduler_msg_qid_to_qidx[qidx] = SCHEDULER_NUMBER_OF_MSG_QUEUE; 353 354 sched_exit(); 355 356 return QDF_STATUS_SUCCESS; 357 } 358 359 void scheduler_resume(void) 360 { 361 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 362 363 if (sched_ctx) 364 qdf_event_set(&sched_ctx->resume_sch_event); 365 } 366 367 void scheduler_register_hdd_suspend_callback(hdd_suspend_callback callback) 368 { 369 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 370 371 if (sched_ctx) 372 sched_ctx->hdd_callback = callback; 373 } 374 void scheduler_wake_up_controller_thread(void) 375 { 376 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 377 378 if (sched_ctx) 379 qdf_wake_up_interruptible(&sched_ctx->sch_wait_queue); 380 } 381 void scheduler_set_event_mask(uint32_t event_mask) 382 { 383 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 384 385 if (sched_ctx) 386 qdf_atomic_set_bit(event_mask, &sched_ctx->sch_event_flag); 387 } 388 389 void scheduler_clear_event_mask(uint32_t event_mask) 390 { 391 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 392 393 if (sched_ctx) 394 qdf_atomic_clear_bit(event_mask, &sched_ctx->sch_event_flag); 395 } 396 397 QDF_STATUS scheduler_target_if_mq_handler(struct scheduler_msg *msg) 398 { 399 QDF_STATUS status; 400 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 401 QDF_STATUS (*target_if_msg_handler)(struct scheduler_msg *); 402 403 QDF_BUG(msg); 404 if (!msg) 405 return QDF_STATUS_E_FAILURE; 406 407 QDF_BUG(sched_ctx); 408 if (!sched_ctx) 409 return QDF_STATUS_E_FAILURE; 410 411 target_if_msg_handler = msg->callback; 412 413 /* Target_If is a special message queue in phase 3 convergence beacause 414 * its used by both legacy WMA and as well as new UMAC components. New 415 * UMAC components directly pass their message handlers as callback in 416 * message body. 417 * 1) All Legacy WMA messages do not contain message callback so invoke 418 * registered legacy WMA handler. Scheduler message posting APIs 419 * makes sure legacy WMA messages do not have callbacks. 420 * 2) For new messages which have valid callbacks invoke their callbacks 421 * directly. 422 */ 423 if (!target_if_msg_handler) 424 status = sched_ctx->legacy_wma_handler(msg); 425 else 426 status = target_if_msg_handler(msg); 427 428 return status; 429 } 430 431 QDF_STATUS scheduler_os_if_mq_handler(struct scheduler_msg *msg) 432 { 433 QDF_STATUS (*os_if_msg_handler)(struct scheduler_msg *); 434 435 QDF_BUG(msg); 436 if (!msg) 437 return QDF_STATUS_E_FAILURE; 438 439 os_if_msg_handler = msg->callback; 440 441 QDF_BUG(os_if_msg_handler); 442 if (!os_if_msg_handler) 443 return QDF_STATUS_E_FAILURE; 444 445 os_if_msg_handler(msg); 446 447 return QDF_STATUS_SUCCESS; 448 } 449 450 QDF_STATUS scheduler_timer_q_mq_handler(struct scheduler_msg *msg) 451 { 452 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 453 qdf_mc_timer_callback_t timer_callback; 454 455 QDF_BUG(msg); 456 if (!msg) 457 return QDF_STATUS_E_FAILURE; 458 459 QDF_BUG(sched_ctx); 460 if (!sched_ctx) 461 return QDF_STATUS_E_FAILURE; 462 463 /* legacy sys message handler? */ 464 if (msg->reserved != SYS_MSG_COOKIE || msg->type != SYS_MSG_ID_MC_TIMER) 465 return sched_ctx->legacy_sys_handler(msg); 466 467 timer_callback = msg->callback; 468 QDF_BUG(timer_callback); 469 if (!timer_callback) 470 return QDF_STATUS_E_FAILURE; 471 472 timer_callback(msg->bodyptr); 473 474 return QDF_STATUS_SUCCESS; 475 } 476 477 QDF_STATUS scheduler_mlme_mq_handler(struct scheduler_msg *msg) 478 { 479 scheduler_msg_process_fn_t mlme_msg_handler; 480 481 QDF_BUG(msg); 482 if (!msg) 483 return QDF_STATUS_E_FAILURE; 484 485 mlme_msg_handler = msg->callback; 486 487 QDF_BUG(mlme_msg_handler); 488 if (!mlme_msg_handler) 489 return QDF_STATUS_E_FAILURE; 490 491 mlme_msg_handler(msg); 492 493 return QDF_STATUS_SUCCESS; 494 } 495 496 QDF_STATUS scheduler_scan_mq_handler(struct scheduler_msg *msg) 497 { 498 QDF_STATUS (*scan_q_msg_handler)(struct scheduler_msg *); 499 500 QDF_BUG(msg); 501 if (!msg) 502 return QDF_STATUS_E_FAILURE; 503 504 scan_q_msg_handler = msg->callback; 505 506 QDF_BUG(scan_q_msg_handler); 507 if (!scan_q_msg_handler) 508 return QDF_STATUS_E_FAILURE; 509 510 scan_q_msg_handler(msg); 511 512 return QDF_STATUS_SUCCESS; 513 } 514 515 QDF_STATUS scheduler_register_wma_legacy_handler(scheduler_msg_process_fn_t 516 wma_callback) 517 { 518 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 519 520 QDF_BUG(sched_ctx); 521 if (!sched_ctx) 522 return QDF_STATUS_E_FAILURE; 523 524 sched_ctx->legacy_wma_handler = wma_callback; 525 526 return QDF_STATUS_SUCCESS; 527 } 528 529 QDF_STATUS scheduler_register_sys_legacy_handler(scheduler_msg_process_fn_t 530 sys_callback) 531 { 532 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 533 534 QDF_BUG(sched_ctx); 535 if (!sched_ctx) 536 return QDF_STATUS_E_FAILURE; 537 538 sched_ctx->legacy_sys_handler = sys_callback; 539 540 return QDF_STATUS_SUCCESS; 541 } 542 543 QDF_STATUS scheduler_deregister_wma_legacy_handler(void) 544 { 545 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 546 547 QDF_BUG(sched_ctx); 548 if (!sched_ctx) 549 return QDF_STATUS_E_FAILURE; 550 551 sched_ctx->legacy_wma_handler = NULL; 552 553 return QDF_STATUS_SUCCESS; 554 } 555 556 QDF_STATUS scheduler_deregister_sys_legacy_handler(void) 557 { 558 struct scheduler_ctx *sched_ctx = scheduler_get_context(); 559 560 QDF_BUG(sched_ctx); 561 if (!sched_ctx) 562 return QDF_STATUS_E_FAILURE; 563 564 sched_ctx->legacy_sys_handler = NULL; 565 566 return QDF_STATUS_SUCCESS; 567 } 568 569 static QDF_STATUS scheduler_msg_flush_noop(struct scheduler_msg *msg) 570 { 571 return QDF_STATUS_SUCCESS; 572 } 573 574 void scheduler_mc_timer_callback(qdf_mc_timer_t *timer) 575 { 576 struct scheduler_msg msg = {0}; 577 QDF_STATUS status; 578 579 qdf_mc_timer_callback_t callback = NULL; 580 void *user_data = NULL; 581 QDF_TIMER_TYPE type = QDF_TIMER_TYPE_SW; 582 583 QDF_BUG(timer); 584 if (!timer) 585 return; 586 587 qdf_spin_lock_irqsave(&timer->platform_info.spinlock); 588 589 switch (timer->state) { 590 case QDF_TIMER_STATE_STARTING: 591 /* we are in this state because someone just started the timer, 592 * MC timer got started and expired, but the time content have 593 * not been updated this is a rare race condition! 594 */ 595 timer->state = QDF_TIMER_STATE_STOPPED; 596 status = QDF_STATUS_E_ALREADY; 597 break; 598 599 case QDF_TIMER_STATE_STOPPED: 600 status = QDF_STATUS_E_ALREADY; 601 break; 602 603 case QDF_TIMER_STATE_UNUSED: 604 status = QDF_STATUS_E_EXISTS; 605 break; 606 607 case QDF_TIMER_STATE_RUNNING: 608 /* need to go to stop state here because the call-back function 609 * may restart timer (to emulate periodic timer) 610 */ 611 timer->state = QDF_TIMER_STATE_STOPPED; 612 /* copy the relevant timer information to local variables; 613 * once we exits from this critical section, the timer content 614 * may be modified by other tasks 615 */ 616 callback = timer->callback; 617 user_data = timer->user_data; 618 type = timer->type; 619 status = QDF_STATUS_SUCCESS; 620 break; 621 622 default: 623 QDF_ASSERT(0); 624 status = QDF_STATUS_E_FAULT; 625 break; 626 } 627 628 qdf_spin_unlock_irqrestore(&timer->platform_info.spinlock); 629 630 if (QDF_IS_STATUS_ERROR(status)) { 631 sched_debug("MC timer fired but is not running; skip callback"); 632 return; 633 } 634 635 qdf_try_allowing_sleep(type); 636 637 QDF_BUG(callback); 638 if (!callback) 639 return; 640 641 /* serialize to scheduler controller thread */ 642 msg.type = SYS_MSG_ID_MC_TIMER; 643 msg.reserved = SYS_MSG_COOKIE; 644 msg.callback = callback; 645 msg.bodyptr = user_data; 646 msg.bodyval = 0; 647 648 /* bodyptr points to user data, do not free it during msg flush */ 649 msg.flush_callback = scheduler_msg_flush_noop; 650 651 status = scheduler_post_message(QDF_MODULE_ID_SCHEDULER, 652 QDF_MODULE_ID_SCHEDULER, 653 QDF_MODULE_ID_SYS, &msg); 654 if (QDF_IS_STATUS_ERROR(status)) 655 sched_err("Could not enqueue timer to timer queue"); 656 } 657 658 QDF_STATUS scheduler_get_queue_size(QDF_MODULE_ID qid, uint32_t *size) 659 { 660 uint8_t qidx; 661 struct scheduler_mq_type *target_mq; 662 struct scheduler_ctx *sched_ctx; 663 664 sched_ctx = scheduler_get_context(); 665 if (!sched_ctx) 666 return QDF_STATUS_E_INVAL; 667 668 /* WMA also uses the target_if queue, so replace the QID */ 669 if (QDF_MODULE_ID_WMA == qid) 670 qid = QDF_MODULE_ID_TARGET_IF; 671 672 qidx = sched_ctx->queue_ctx.scheduler_msg_qid_to_qidx[qid]; 673 if (qidx >= SCHEDULER_NUMBER_OF_MSG_QUEUE) { 674 sched_err("Scheduler is deinitialized"); 675 return QDF_STATUS_E_FAILURE; 676 } 677 678 target_mq = &(sched_ctx->queue_ctx.sch_msg_q[qidx]); 679 680 *size = qdf_list_size(&target_mq->mq_list); 681 682 return QDF_STATUS_SUCCESS; 683 } 684 685 QDF_STATUS scheduler_post_message_debug(QDF_MODULE_ID src_id, 686 QDF_MODULE_ID dest_id, 687 QDF_MODULE_ID que_id, 688 struct scheduler_msg *msg, 689 int line, 690 const char *func) 691 { 692 QDF_STATUS status; 693 694 status = scheduler_post_msg(scheduler_get_qid(src_id, dest_id, que_id), 695 msg); 696 697 if (QDF_IS_STATUS_ERROR(status)) 698 sched_err("couldn't post from %d to %d - called from %d, %s", 699 src_id, dest_id, line, func); 700 701 return status; 702 } 703 704 qdf_export_symbol(scheduler_post_message_debug); 705