1 /* 2 * Copyright (c) 2017-2019 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 * DOC: wlan_serialization_internal.c 20 * This file defines the functions which are called 21 * from serialization public API's and are internal 22 * to serialization. 23 */ 24 25 #include <wlan_objmgr_vdev_obj.h> 26 #include <wlan_objmgr_pdev_obj.h> 27 #include <wlan_objmgr_psoc_obj.h> 28 #include <qdf_list.h> 29 #include <qdf_status.h> 30 #include <wlan_utility.h> 31 #include "wlan_serialization_api.h" 32 #include "wlan_serialization_main_i.h" 33 #include "wlan_serialization_utils_i.h" 34 #include "wlan_serialization_non_scan_i.h" 35 #include "wlan_serialization_scan_i.h" 36 #include "wlan_serialization_internal_i.h" 37 38 bool wlan_serialization_is_cmd_present_queue( 39 struct wlan_serialization_command *cmd, 40 uint8_t is_active_queue) 41 { 42 qdf_list_t *queue; 43 bool status = false; 44 enum wlan_serialization_node node_type; 45 struct wlan_ser_pdev_obj *ser_pdev_obj; 46 struct wlan_ser_vdev_obj *ser_vdev_obj; 47 enum wlan_serialization_cmd_type cmd_type; 48 49 if (!cmd) { 50 ser_err("invalid cmd"); 51 goto error; 52 } 53 54 cmd_type = cmd->cmd_type; 55 56 ser_pdev_obj = wlan_serialization_get_pdev_obj( 57 wlan_serialization_get_pdev_from_cmd(cmd)); 58 59 if (!ser_pdev_obj) { 60 ser_err("invalid ser vdev obj"); 61 goto error; 62 } 63 64 ser_vdev_obj = wlan_serialization_get_vdev_obj( 65 wlan_serialization_get_vdev_from_cmd(cmd)); 66 if (!ser_vdev_obj) { 67 ser_err("invalid ser pdev obj"); 68 goto error; 69 } 70 71 if (cmd_type < WLAN_SER_CMD_NONSCAN) { 72 queue = wlan_serialization_get_list_from_pdev_queue( 73 ser_pdev_obj, cmd_type, is_active_queue); 74 node_type = WLAN_SER_PDEV_NODE; 75 } else { 76 queue = wlan_serialization_get_list_from_vdev_queue( 77 ser_vdev_obj, cmd_type, is_active_queue); 78 node_type = WLAN_SER_VDEV_NODE; 79 } 80 81 status = wlan_serialization_is_cmd_present_in_given_queue(queue, cmd, 82 node_type); 83 84 error: 85 return status; 86 } 87 88 enum wlan_serialization_status 89 wlan_serialization_enqueue_cmd(struct wlan_serialization_command *cmd, 90 enum ser_queue_reason ser_reason) 91 { 92 enum wlan_serialization_status status = WLAN_SER_CMD_DENIED_UNSPECIFIED; 93 struct wlan_serialization_command_list *cmd_list; 94 qdf_list_node_t *nnode; 95 struct wlan_objmgr_pdev *pdev; 96 struct wlan_ser_pdev_obj *ser_pdev_obj; 97 struct wlan_serialization_pdev_queue *pdev_queue; 98 struct wlan_ser_vdev_obj *ser_vdev_obj; 99 struct wlan_serialization_vdev_queue *vdev_queue; 100 bool active_queue; 101 102 /* Enqueue process 103 * 1) peek through command structure and see what is the command type 104 * 2) two main types of commands to process 105 * a) SCAN 106 * b) NON-SCAN 107 * 3) for each command there are separate command queues per pdev 108 * 4) pull pdev from vdev structure and get the command queue associated 109 * with that pdev and try to enqueue on those queue 110 * 5) Thumb rule: 111 * a) There could be only 1 active non-scan command at a 112 * time including all total non-scan commands of all pdevs. 113 * 114 * example: pdev1 has 1 non-scan active command and 115 * pdev2 got 1 non-scan command then that command should go to 116 * pdev2's pending queue 117 * 118 * b) There could be only N number of scan commands at a time 119 * including all total scan commands of all pdevs 120 * 121 * example: Let's say N=8, 122 * pdev1's vdev1 has 5 scan command, pdev2's vdev1 has 3 123 * scan commands, if we get scan request on vdev2 then it will go 124 * to pending queue of vdev2 as we reached max allowed scan active 125 * command. 126 */ 127 128 ser_enter(); 129 130 if (!cmd) { 131 ser_err("NULL command"); 132 goto error; 133 } 134 135 if (!cmd->cmd_cb) { 136 ser_err("no cmd_cb for cmd type:%d, id: %d", 137 cmd->cmd_type, 138 cmd->cmd_id); 139 goto error; 140 } 141 142 pdev = wlan_serialization_get_pdev_from_cmd(cmd); 143 if (!pdev) { 144 ser_err("pdev is invalid"); 145 goto error; 146 } 147 148 ser_pdev_obj = 149 wlan_objmgr_pdev_get_comp_private_obj( 150 pdev, 151 WLAN_UMAC_COMP_SERIALIZATION); 152 if (!ser_pdev_obj) { 153 ser_err("Invalid ser_pdev_obj"); 154 goto error; 155 } 156 157 pdev_queue = wlan_serialization_get_pdev_queue_obj(ser_pdev_obj, 158 cmd->cmd_type); 159 if (!pdev_queue) { 160 ser_err("pdev_queue is invalid"); 161 goto error; 162 } 163 164 ser_debug("enqueue cmd: type[%d] id[%d] high_priority[%d] blocking[%d]", 165 cmd->cmd_type, 166 cmd->cmd_id, 167 cmd->is_high_priority, 168 cmd->is_blocking); 169 170 wlan_serialization_acquire_lock(&pdev_queue->pdev_queue_lock); 171 172 /* Before queuing any non scan command, 173 * as part of wlan_serialization_request, 174 * we check if the vdev queues are disabled. 175 * 176 * The serialization command structure has an 177 * attribute, where after a given command is queued, 178 * we can block the vdev queues. 179 * 180 * For example, after VDEV_DOWN command is queued as 181 * part of a vdev deletion, no other commands should be queued 182 * until the deletion is complete, so with VDEV_DOWN(in case of 183 * vdev deletion) with pass the attribute to disable vdev queues 184 */ 185 if (cmd->cmd_type > WLAN_SER_CMD_SCAN && 186 ser_reason == SER_REQUEST) { 187 ser_vdev_obj = 188 wlan_serialization_get_vdev_obj( 189 wlan_serialization_get_vdev_from_cmd(cmd)); 190 191 if (!ser_vdev_obj) { 192 wlan_serialization_release_lock( 193 &pdev_queue->pdev_queue_lock); 194 goto error; 195 } 196 197 vdev_queue = 198 wlan_serialization_get_vdev_queue_obj( 199 ser_vdev_obj, 200 cmd->cmd_type); 201 202 if (!vdev_queue) { 203 wlan_serialization_release_lock( 204 &pdev_queue->pdev_queue_lock); 205 goto error; 206 } 207 208 if (vdev_queue->queue_disable) { 209 wlan_serialization_release_lock( 210 &pdev_queue->pdev_queue_lock); 211 ser_err("VDEV queue is disabled, ser request denied"); 212 ser_err("cmd id[%d] cmd type[%d]", cmd->cmd_id, 213 cmd->cmd_type); 214 status = WLAN_SER_CMD_QUEUE_DISABLED; 215 goto error; 216 } 217 } 218 219 active_queue = wlan_serialization_is_active_cmd_allowed(cmd); 220 221 if (wlan_serialization_is_cmd_present_queue(cmd, active_queue)) { 222 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 223 ser_err("duplicate command, can't enqueue"); 224 goto error; 225 } 226 227 if (wlan_serialization_remove_front( 228 &pdev_queue->cmd_pool_list, 229 &nnode) != QDF_STATUS_SUCCESS) { 230 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 231 ser_err("Failed to get cmd buffer from global pool"); 232 status = WLAN_SER_CMD_DENIED_LIST_FULL; 233 goto error; 234 } 235 236 ser_debug("Global pool node: %pK", nnode); 237 238 cmd_list = 239 qdf_container_of(nnode, 240 struct wlan_serialization_command_list, 241 pdev_node); 242 243 qdf_mem_copy(&cmd_list->cmd, cmd, 244 sizeof(struct wlan_serialization_command)); 245 246 if (cmd->cmd_type < WLAN_SER_CMD_NONSCAN) { 247 status = wlan_ser_add_scan_cmd(ser_pdev_obj, 248 cmd_list, 249 active_queue); 250 } else { 251 status = wlan_ser_add_non_scan_cmd(ser_pdev_obj, 252 cmd_list, 253 active_queue); 254 } 255 256 if (status != WLAN_SER_CMD_PENDING && status != WLAN_SER_CMD_ACTIVE) { 257 qdf_mem_zero(&cmd_list->cmd, 258 sizeof(struct wlan_serialization_command)); 259 cmd_list->cmd_in_use = 0; 260 wlan_serialization_insert_back( 261 &pdev_queue->cmd_pool_list, 262 &cmd_list->pdev_node); 263 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 264 ser_err("Failed to add cmd to active/pending queue"); 265 goto error; 266 } 267 268 if (WLAN_SER_CMD_ACTIVE == status) { 269 qdf_atomic_set_bit(CMD_MARKED_FOR_ACTIVATION, 270 &cmd_list->cmd_in_use); 271 } 272 273 wlan_ser_update_cmd_history(pdev_queue, &cmd_list->cmd, 274 ser_reason, true, active_queue); 275 276 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 277 278 if (WLAN_SER_CMD_ACTIVE == status) 279 wlan_serialization_activate_cmd(cmd_list, 280 ser_pdev_obj, ser_reason); 281 282 error: 283 ser_exit(); 284 285 return status; 286 } 287 288 QDF_STATUS wlan_serialization_activate_cmd( 289 struct wlan_serialization_command_list *cmd_list, 290 struct wlan_ser_pdev_obj *ser_pdev_obj, 291 enum ser_queue_reason ser_reason) 292 { 293 QDF_STATUS status = QDF_STATUS_E_FAILURE; 294 struct wlan_objmgr_psoc *psoc = NULL; 295 struct wlan_serialization_pdev_queue *pdev_queue; 296 297 pdev_queue = wlan_serialization_get_pdev_queue_obj( 298 ser_pdev_obj, cmd_list->cmd.cmd_type); 299 300 psoc = wlan_vdev_get_psoc(cmd_list->cmd.vdev); 301 if (!psoc) { 302 ser_err("invalid psoc"); 303 goto error; 304 } 305 306 /* 307 * command is already pushed to active queue above 308 * now start the timer and notify requestor 309 */ 310 311 status = wlan_serialization_find_and_start_timer(psoc, &cmd_list->cmd, 312 ser_reason); 313 if (QDF_IS_STATUS_ERROR(status)) { 314 ser_err("Failed to start timer cmd type[%d] id[%d] vdev[%d]", 315 cmd_list->cmd.cmd_type, 316 cmd_list->cmd.cmd_id, 317 wlan_vdev_get_id(cmd_list->cmd.vdev)); 318 goto timer_failed; 319 } 320 321 /* 322 * Remember that serialization module may send 323 * this callback in same context through which it 324 * received the serialization request. Due to which 325 * it is caller's responsibility to ensure acquiring 326 * and releasing its own lock appropriately. 327 */ 328 329 ser_debug("cmd cb: type[%d] id[%d] : reason: %s", 330 cmd_list->cmd.cmd_type, 331 cmd_list->cmd.cmd_id, 332 "WLAN_SER_CB_ACTIVATE_CMD"); 333 334 cmd_list->cmd.activation_reason = ser_reason; 335 336 status = cmd_list->cmd.cmd_cb(&cmd_list->cmd, 337 WLAN_SER_CB_ACTIVATE_CMD); 338 339 wlan_serialization_acquire_lock(&pdev_queue->pdev_queue_lock); 340 341 qdf_atomic_clear_bit(CMD_MARKED_FOR_ACTIVATION, 342 &cmd_list->cmd_in_use); 343 qdf_atomic_set_bit(CMD_IS_ACTIVE, 344 &cmd_list->cmd_in_use); 345 346 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 347 348 timer_failed: 349 if (QDF_IS_STATUS_ERROR(status)) { 350 wlan_serialization_dequeue_cmd(&cmd_list->cmd, 351 SER_ACTIVATION_FAILED, 352 true); 353 return status; 354 } 355 356 /* 357 * Cmd was marked for activation and delete or cancel 358 * is received before activation completed, then the command 359 * should be immediately removed after activation 360 */ 361 if (qdf_atomic_test_bit(CMD_ACTIVE_MARKED_FOR_REMOVAL, 362 &cmd_list->cmd_in_use)) { 363 wlan_serialization_dequeue_cmd(&cmd_list->cmd, 364 SER_REMOVE, 365 true); 366 return status; 367 } 368 369 if (qdf_atomic_test_bit(CMD_ACTIVE_MARKED_FOR_CANCEL, 370 &cmd_list->cmd_in_use)) 371 wlan_serialization_cmd_cancel_handler( 372 ser_pdev_obj, &cmd_list->cmd, 373 NULL, NULL, cmd_list->cmd.cmd_type, 374 WLAN_SERIALIZATION_ACTIVE_QUEUE); 375 error: 376 return status; 377 } 378 379 bool 380 wlan_serialization_is_active_cmd_allowed(struct wlan_serialization_command *cmd) 381 { 382 struct wlan_objmgr_pdev *pdev; 383 bool active_cmd_allowed = 0; 384 385 pdev = wlan_serialization_get_pdev_from_cmd(cmd); 386 if (!pdev) { 387 ser_err("NULL pdev"); 388 goto error; 389 } 390 391 if (cmd->cmd_type < WLAN_SER_CMD_NONSCAN) 392 active_cmd_allowed = 393 (wlan_serialization_is_active_scan_cmd_allowed(cmd) && 394 wlan_serialization_is_scan_pending_queue_empty(cmd)); 395 else 396 active_cmd_allowed = 397 (wlan_serialization_is_active_non_scan_cmd_allowed(cmd) && 398 wlan_serialization_is_non_scan_pending_queue_empty(cmd)); 399 400 ser_debug("active cmd_type[%d] cmd_id[%d] allowed: %d", 401 cmd->cmd_type, 402 cmd->cmd_id, 403 active_cmd_allowed); 404 405 error: 406 return active_cmd_allowed; 407 } 408 409 enum wlan_serialization_status 410 wlan_serialization_move_pending_to_active( 411 enum wlan_serialization_cmd_type cmd_type, 412 struct wlan_ser_pdev_obj *ser_pdev_obj, 413 struct wlan_objmgr_vdev *vdev, 414 bool blocking_cmd_removed) 415 { 416 enum wlan_serialization_status status; 417 418 if (cmd_type < WLAN_SER_CMD_NONSCAN) { 419 status = 420 wlan_ser_move_scan_pending_to_active( 421 ser_pdev_obj); 422 } else { 423 status = 424 wlan_ser_move_non_scan_pending_to_active( 425 ser_pdev_obj, 426 vdev, 427 blocking_cmd_removed); 428 } 429 430 return status; 431 } 432 433 enum wlan_serialization_cmd_status 434 wlan_serialization_dequeue_cmd(struct wlan_serialization_command *cmd, 435 enum ser_queue_reason ser_reason, 436 uint8_t active_cmd) 437 { 438 enum wlan_serialization_cmd_status status = 439 WLAN_SER_CMD_NOT_FOUND; 440 enum wlan_serialization_status ser_status = 441 WLAN_SER_CMD_DENIED_UNSPECIFIED; 442 443 QDF_STATUS qdf_status; 444 struct wlan_objmgr_pdev *pdev; 445 struct wlan_objmgr_psoc *psoc; 446 struct wlan_ser_pdev_obj *ser_pdev_obj; 447 struct wlan_serialization_command cmd_bkup; 448 struct wlan_serialization_command_list *cmd_list; 449 struct wlan_serialization_pdev_queue *pdev_queue; 450 bool blocking_cmd_removed = 0; 451 452 ser_enter(); 453 454 if (!cmd) { 455 ser_err("NULL command"); 456 goto error; 457 } 458 459 pdev = wlan_serialization_get_pdev_from_cmd(cmd); 460 if (!pdev) { 461 ser_err("invalid pdev"); 462 goto error; 463 } 464 465 psoc = wlan_pdev_get_psoc(pdev); 466 if (!psoc) { 467 ser_err("invalid psoc"); 468 goto error; 469 } 470 471 ser_pdev_obj = wlan_serialization_get_pdev_obj(pdev); 472 if (!ser_pdev_obj) { 473 ser_err("ser_pdev_obj is empty"); 474 goto error; 475 } 476 477 pdev_queue = wlan_serialization_get_pdev_queue_obj( 478 ser_pdev_obj, cmd->cmd_type); 479 480 ser_debug("dequeue cmd: type[%d] id[%d] high_priority[%d] blocking[%d]", 481 cmd->cmd_type, 482 cmd->cmd_id, 483 cmd->is_high_priority, 484 cmd->is_blocking); 485 486 wlan_serialization_acquire_lock(&pdev_queue->pdev_queue_lock); 487 488 if (cmd->cmd_type < WLAN_SER_CMD_NONSCAN) 489 qdf_status = wlan_ser_remove_scan_cmd( 490 ser_pdev_obj, &cmd_list, cmd, active_cmd); 491 else { 492 qdf_status = wlan_ser_remove_non_scan_cmd( 493 ser_pdev_obj, &cmd_list, cmd, active_cmd); 494 } 495 496 if (qdf_status == QDF_STATUS_E_PENDING) { 497 status = WLAN_SER_CMD_MARKED_FOR_ACTIVATION; 498 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 499 goto error; 500 } 501 502 if (qdf_status != QDF_STATUS_SUCCESS) { 503 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 504 status = WLAN_SER_CMD_NOT_FOUND; 505 goto error; 506 } 507 508 if (active_cmd) { 509 if (cmd_list->cmd.cmd_type >= WLAN_SER_CMD_NONSCAN) 510 blocking_cmd_removed = cmd_list->cmd.is_blocking; 511 } 512 513 if (active_cmd) 514 wlan_serialization_find_and_stop_timer( 515 psoc, &cmd_list->cmd, 516 ser_reason); 517 518 qdf_mem_copy(&cmd_bkup, &cmd_list->cmd, 519 sizeof(struct wlan_serialization_command)); 520 qdf_mem_zero(&cmd_list->cmd, 521 sizeof(struct wlan_serialization_command)); 522 cmd_list->cmd_in_use = 0; 523 qdf_status = wlan_serialization_insert_back( 524 &pdev_queue->cmd_pool_list, 525 &cmd_list->pdev_node); 526 527 wlan_ser_update_cmd_history(pdev_queue, &cmd_bkup, ser_reason, 528 false, active_cmd); 529 530 wlan_serialization_release_lock(&pdev_queue->pdev_queue_lock); 531 532 /* Call cmd cb for remove request*/ 533 if (cmd_bkup.cmd_cb) { 534 /* caller should release the memory */ 535 ser_debug("cmd cb: type[%d] id[%d]: reason: %s", 536 cmd_bkup.cmd_type, 537 cmd_bkup.cmd_id, 538 "WLAN_SER_CB_RELEASE_MEM_CMD"); 539 cmd_bkup.cmd_cb(&cmd_bkup, 540 WLAN_SER_CB_RELEASE_MEM_CMD); 541 } 542 543 if (active_cmd) { 544 ser_status = wlan_serialization_move_pending_to_active( 545 cmd_bkup.cmd_type, ser_pdev_obj, 546 cmd_bkup.vdev, 547 blocking_cmd_removed); 548 } 549 550 if (active_cmd) 551 status = WLAN_SER_CMD_IN_ACTIVE_LIST; 552 else 553 status = WLAN_SER_CMD_IN_PENDING_LIST; 554 555 error: 556 ser_exit(); 557 return status; 558 } 559 560 void wlan_serialization_generic_timer_cb(void *arg) 561 { 562 struct wlan_serialization_timer *timer = arg; 563 struct wlan_serialization_command *cmd = timer->cmd; 564 struct wlan_objmgr_vdev *vdev = NULL; 565 566 567 if (!cmd) { 568 ser_err("Command not found"); 569 return; 570 } 571 572 vdev = cmd->vdev; 573 if (!vdev) { 574 ser_err("Invalid vdev"); 575 return; 576 } 577 578 ser_err("active cmd timeout for cmd_type[%d] vdev[%d]", 579 cmd->cmd_type, wlan_vdev_get_id(cmd->vdev)); 580 581 if (cmd->cmd_cb) 582 cmd->cmd_cb(cmd, WLAN_SER_CB_ACTIVE_CMD_TIMEOUT); 583 584 /* 585 * dequeue cmd API will cleanup and destroy the timer. If it fails to 586 * dequeue command then we have to destroy the timer. 587 */ 588 wlan_serialization_dequeue_cmd(cmd, SER_TIMEOUT, true); 589 590 /* Release the ref taken before the timer was started */ 591 wlan_objmgr_vdev_release_ref(vdev, WLAN_SERIALIZATION_ID); 592 } 593 594 static QDF_STATUS wlan_serialization_mc_flush_noop(struct scheduler_msg *msg) 595 { 596 return QDF_STATUS_SUCCESS; 597 } 598 599 static void 600 wlan_serialization_timer_cb_mc_ctx(void *arg) 601 { 602 struct scheduler_msg msg = {0}; 603 604 msg.type = SYS_MSG_ID_MC_TIMER; 605 msg.reserved = SYS_MSG_COOKIE; 606 msg.callback = wlan_serialization_generic_timer_cb; 607 msg.bodyptr = arg; 608 msg.bodyval = 0; 609 msg.flush_callback = wlan_serialization_mc_flush_noop; 610 611 if (scheduler_post_message(QDF_MODULE_ID_SERIALIZATION, 612 QDF_MODULE_ID_SERIALIZATION, 613 QDF_MODULE_ID_SYS, &msg) == 614 QDF_STATUS_SUCCESS) 615 return; 616 617 ser_err("Could not enqueue timer to timer queue"); 618 } 619 620 static void wlan_serialization_timer_handler(void *arg) 621 { 622 struct wlan_serialization_timer *timer = arg; 623 struct wlan_serialization_command *cmd = timer->cmd; 624 625 if (!cmd) { 626 ser_err("Command not found"); 627 return; 628 } 629 630 ser_err("active cmd timeout for cmd_type[%d] vdev[%d]", 631 cmd->cmd_type, wlan_vdev_get_id(cmd->vdev)); 632 633 wlan_serialization_timer_cb_mc_ctx(arg); 634 635 } 636 637 QDF_STATUS 638 wlan_serialization_find_and_update_timer( 639 struct wlan_objmgr_psoc *psoc, 640 struct wlan_serialization_command *cmd) 641 { 642 struct wlan_ser_psoc_obj *psoc_ser_obj; 643 struct wlan_serialization_timer *ser_timer; 644 QDF_STATUS status = QDF_STATUS_E_FAILURE; 645 int i = 0; 646 647 if (!psoc || !cmd) { 648 ser_err("invalid param"); 649 goto exit; 650 } 651 652 psoc_ser_obj = wlan_serialization_get_psoc_obj(psoc); 653 /* 654 * Here cmd_id and cmd_type are used to locate the timer being 655 * associated with command. 656 */ 657 wlan_serialization_acquire_lock(&psoc_ser_obj->timer_lock); 658 659 for (i = 0; psoc_ser_obj->max_active_cmds > i; i++) { 660 ser_timer = &psoc_ser_obj->timers[i]; 661 if (!(ser_timer->cmd) || 662 (ser_timer->cmd->cmd_id != cmd->cmd_id) || 663 (ser_timer->cmd->cmd_type != cmd->cmd_type) || 664 (ser_timer->cmd->vdev != cmd->vdev)) 665 continue; 666 667 qdf_timer_mod(&ser_timer->timer, 668 cmd->cmd_timeout_duration); 669 status = QDF_STATUS_SUCCESS; 670 break; 671 } 672 673 wlan_serialization_release_lock(&psoc_ser_obj->timer_lock); 674 675 if (QDF_IS_STATUS_SUCCESS(status)) 676 ser_debug("Updated the timer for cmd type:%d, id: %d", 677 cmd->cmd_type, cmd->cmd_id); 678 else 679 ser_debug("Can't find timer for cmd_type[%d]", cmd->cmd_type); 680 681 exit: 682 return status; 683 } 684 685 QDF_STATUS 686 wlan_serialization_find_and_stop_timer(struct wlan_objmgr_psoc *psoc, 687 struct wlan_serialization_command *cmd, 688 enum ser_queue_reason ser_reason) 689 { 690 struct wlan_ser_psoc_obj *psoc_ser_obj; 691 struct wlan_serialization_timer *ser_timer; 692 QDF_STATUS status = QDF_STATUS_E_FAILURE; 693 int i = 0; 694 uint32_t phy_version; 695 struct wlan_objmgr_vdev *vdev; 696 697 if (!psoc || !cmd) { 698 ser_err("invalid param"); 699 goto exit; 700 } 701 702 if (cmd->cmd_timeout_duration == 0) { 703 phy_version = wlan_psoc_get_nif_phy_version(psoc); 704 if (wlan_is_emulation_platform(phy_version)) { 705 ser_err("[SCAN-EMULATION]: Not performing timer funcs"); 706 status = QDF_STATUS_SUCCESS; 707 goto exit; 708 } 709 } 710 711 psoc_ser_obj = wlan_serialization_get_psoc_obj(psoc); 712 /* 713 * Here cmd_id and cmd_type are used to locate the timer being 714 * associated with command. 715 */ 716 wlan_serialization_acquire_lock(&psoc_ser_obj->timer_lock); 717 718 for (i = 0; psoc_ser_obj->max_active_cmds > i; i++) { 719 ser_timer = &psoc_ser_obj->timers[i]; 720 if (!(ser_timer->cmd) || 721 (ser_timer->cmd->cmd_id != cmd->cmd_id) || 722 (ser_timer->cmd->cmd_type != cmd->cmd_type) || 723 (ser_timer->cmd->vdev != cmd->vdev)) 724 continue; 725 726 vdev = ser_timer->cmd->vdev; 727 status = wlan_serialization_stop_timer(ser_timer); 728 /* 729 * Release the vdev reference when the active cmd is removed 730 * through remove/cancel request. 731 * 732 * In case the command removal is because of timer expiry, 733 * the vdev is released when the timer handler completes. 734 */ 735 if (vdev && ser_reason != SER_TIMEOUT) 736 wlan_objmgr_vdev_release_ref( 737 vdev, WLAN_SERIALIZATION_ID); 738 739 break; 740 741 } 742 743 wlan_serialization_release_lock(&psoc_ser_obj->timer_lock); 744 745 if (QDF_IS_STATUS_SUCCESS(status)) 746 ser_debug("Stopped timer for cmd_type %d cmd id %d", 747 cmd->cmd_type, cmd->cmd_id); 748 else 749 ser_err("Can't find timer for cmd_type %d cmd id %d", 750 cmd->cmd_type, cmd->cmd_id); 751 752 exit: 753 return status; 754 } 755 756 QDF_STATUS 757 wlan_serialization_find_and_start_timer(struct wlan_objmgr_psoc *psoc, 758 struct wlan_serialization_command *cmd, 759 enum ser_queue_reason ser_reason) 760 { 761 QDF_STATUS status = QDF_STATUS_E_FAILURE; 762 struct wlan_ser_psoc_obj *psoc_ser_obj; 763 struct wlan_serialization_timer *ser_timer; 764 int i = 0; 765 uint32_t nif_phy_ver; 766 767 if (!psoc || !cmd) { 768 ser_err("invalid param"); 769 goto error; 770 } 771 772 nif_phy_ver = wlan_psoc_get_nif_phy_version(psoc); 773 if ((cmd->cmd_timeout_duration == 0) && 774 (wlan_is_emulation_platform(nif_phy_ver))) { 775 ser_err("[SCAN-EMULATION]: Not performing timer functions\n"); 776 status = QDF_STATUS_SUCCESS; 777 goto exit; 778 } 779 780 psoc_ser_obj = wlan_serialization_get_psoc_obj(psoc); 781 782 wlan_serialization_acquire_lock(&psoc_ser_obj->timer_lock); 783 784 for (i = 0; psoc_ser_obj->max_active_cmds > i; i++) { 785 /* Keep trying timer */ 786 ser_timer = &psoc_ser_obj->timers[i]; 787 if (ser_timer->cmd) 788 continue; 789 790 /* Remember timer is pointing to command */ 791 ser_timer->cmd = cmd; 792 status = QDF_STATUS_SUCCESS; 793 794 /* 795 * Get vdev reference before starting the timer 796 * Remove the reference before removing the command 797 * in any one of the cases: 798 * 1. Active command is removed through remove/cancel request 799 * 2. Timer expiry handler is completed. 800 */ 801 802 status = wlan_objmgr_vdev_try_get_ref(ser_timer->cmd->vdev, 803 WLAN_SERIALIZATION_ID); 804 if (QDF_IS_STATUS_ERROR(status)) { 805 wlan_serialization_release_lock( 806 &psoc_ser_obj->timer_lock); 807 ser_err("Unbale to get vdev reference"); 808 status = QDF_STATUS_E_FAILURE; 809 goto error; 810 } 811 break; 812 } 813 814 wlan_serialization_release_lock(&psoc_ser_obj->timer_lock); 815 816 if (QDF_IS_STATUS_SUCCESS(status)) { 817 qdf_timer_init(NULL, 818 &ser_timer->timer, 819 wlan_serialization_timer_handler, 820 ser_timer, 821 QDF_TIMER_TYPE_SW); 822 qdf_timer_mod(&ser_timer->timer, 823 cmd->cmd_timeout_duration); 824 825 ser_debug("Started timer for cmd: type[%d] id[%d] high_priority[%d] blocking[%d]", 826 cmd->cmd_type, 827 cmd->cmd_id, 828 cmd->is_high_priority, 829 cmd->is_blocking); 830 } else { 831 ser_err("Failed to start timer for cmd: type[%d] id[%d] high_priority[%d] blocking[%d]", 832 cmd->cmd_type, 833 cmd->cmd_id, 834 cmd->is_high_priority, 835 cmd->is_blocking); 836 } 837 838 error: 839 exit: 840 return status; 841 } 842 843 enum wlan_serialization_cmd_status 844 wlan_serialization_cmd_cancel_handler( 845 struct wlan_ser_pdev_obj *ser_obj, 846 struct wlan_serialization_command *cmd, 847 struct wlan_objmgr_pdev *pdev, struct wlan_objmgr_vdev *vdev, 848 enum wlan_serialization_cmd_type cmd_type, uint8_t queue_type) 849 { 850 enum wlan_serialization_cmd_status active_status = 851 WLAN_SER_CMD_NOT_FOUND; 852 enum wlan_serialization_cmd_status pending_status = 853 WLAN_SER_CMD_NOT_FOUND; 854 enum wlan_serialization_cmd_status status = 855 WLAN_SER_CMD_NOT_FOUND; 856 857 ser_enter(); 858 859 if (!ser_obj) { 860 ser_err("invalid serial object"); 861 goto error; 862 } 863 864 if (queue_type & WLAN_SERIALIZATION_ACTIVE_QUEUE) { 865 if (cmd_type < WLAN_SER_CMD_NONSCAN) 866 active_status = wlan_ser_cancel_scan_cmd( 867 ser_obj, pdev, vdev, cmd, 868 cmd_type, true); 869 else 870 active_status = wlan_ser_cancel_non_scan_cmd( 871 ser_obj, pdev, vdev, cmd, 872 cmd_type, true); 873 } 874 875 if (queue_type & WLAN_SERIALIZATION_PENDING_QUEUE) { 876 if (cmd_type < WLAN_SER_CMD_NONSCAN) 877 pending_status = wlan_ser_cancel_scan_cmd( 878 ser_obj, pdev, vdev, cmd, 879 cmd_type, false); 880 else 881 pending_status = wlan_ser_cancel_non_scan_cmd( 882 ser_obj, pdev, vdev, cmd, 883 cmd_type, false); 884 } 885 886 if (active_status == WLAN_SER_CMD_IN_ACTIVE_LIST && 887 pending_status == WLAN_SER_CMD_IN_PENDING_LIST) 888 status = WLAN_SER_CMDS_IN_ALL_LISTS; 889 else if (active_status == WLAN_SER_CMD_IN_ACTIVE_LIST) 890 status = active_status; 891 else if (pending_status == WLAN_SER_CMD_IN_PENDING_LIST) 892 status = pending_status; 893 894 error: 895 ser_exit(); 896 return status; 897 } 898 899 enum wlan_serialization_cmd_status 900 wlan_serialization_find_and_cancel_cmd( 901 struct wlan_serialization_command *cmd, 902 enum wlan_serialization_cancel_type req_type, 903 uint8_t queue_type) 904 { 905 enum wlan_serialization_cmd_status status = WLAN_SER_CMD_NOT_FOUND; 906 struct wlan_ser_pdev_obj *ser_obj = NULL; 907 struct wlan_objmgr_pdev *pdev; 908 909 ser_enter(); 910 911 if (!cmd) { 912 ser_err("Invalid cmd"); 913 goto error; 914 } 915 916 pdev = wlan_serialization_get_pdev_from_cmd(cmd); 917 if (!pdev) { 918 ser_err("Invalid pdev"); 919 goto error; 920 } 921 ser_obj = wlan_serialization_get_pdev_obj(pdev); 922 if (!ser_obj) { 923 ser_err("Invalid ser_obj"); 924 goto error; 925 } 926 927 switch (req_type) { 928 case WLAN_SER_CANCEL_SINGLE_SCAN: 929 /* remove scan cmd which matches the given cmd struct */ 930 status = wlan_serialization_cmd_cancel_handler( 931 ser_obj, cmd, NULL, NULL, 932 WLAN_SER_CMD_SCAN, queue_type); 933 break; 934 case WLAN_SER_CANCEL_PDEV_SCANS: 935 /* remove all scan cmds which matches the pdev object */ 936 status = wlan_serialization_cmd_cancel_handler( 937 ser_obj, NULL, pdev, NULL, 938 WLAN_SER_CMD_SCAN, queue_type); 939 break; 940 case WLAN_SER_CANCEL_VDEV_SCANS: 941 /* remove all scan cmds which matches the vdev object */ 942 status = wlan_serialization_cmd_cancel_handler( 943 ser_obj, NULL, NULL, cmd->vdev, 944 WLAN_SER_CMD_SCAN, queue_type); 945 break; 946 case WLAN_SER_CANCEL_NON_SCAN_CMD: 947 /* remove nonscan cmd which matches the given cmd */ 948 status = wlan_serialization_cmd_cancel_handler( 949 ser_obj, cmd, NULL, NULL, 950 WLAN_SER_CMD_NONSCAN, queue_type); 951 break; 952 case WLAN_SER_CANCEL_PDEV_NON_SCAN_CMD: 953 /* remove all non scan cmds which matches the pdev object */ 954 status = wlan_serialization_cmd_cancel_handler( 955 ser_obj, NULL, pdev, NULL, 956 WLAN_SER_CMD_NONSCAN, queue_type); 957 break; 958 case WLAN_SER_CANCEL_VDEV_NON_SCAN_CMD: 959 /* remove all non scan cmds which matches the vdev object */ 960 status = wlan_serialization_cmd_cancel_handler( 961 ser_obj, NULL, NULL, cmd->vdev, 962 WLAN_SER_CMD_NONSCAN, queue_type); 963 break; 964 case WLAN_SER_CANCEL_VDEV_NON_SCAN_CMD_TYPE: 965 /* 966 * remove all non scan cmds which matches the vdev 967 * and given cmd type 968 */ 969 status = wlan_serialization_cmd_cancel_handler( 970 ser_obj, NULL, NULL, cmd->vdev, 971 cmd->cmd_type, queue_type); 972 break; 973 default: 974 ser_err("Invalid request"); 975 } 976 977 error: 978 ser_exit(); 979 return status; 980 } 981