1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2024-2025 Intel Corporation 4 */ 5 #include <linux/rtnetlink.h> 6 #include <net/mac80211.h> 7 8 #include "fw/api/rx.h" 9 #include "fw/api/datapath.h" 10 #include "fw/api/commands.h" 11 #include "fw/api/offload.h" 12 #include "fw/api/coex.h" 13 #include "fw/dbg.h" 14 #include "fw/uefi.h" 15 16 #include "mld.h" 17 #include "mlo.h" 18 #include "mac80211.h" 19 #include "led.h" 20 #include "scan.h" 21 #include "tx.h" 22 #include "sta.h" 23 #include "regulatory.h" 24 #include "thermal.h" 25 #include "low_latency.h" 26 #include "hcmd.h" 27 #include "fw/api/location.h" 28 29 #include "iwl-nvm-parse.h" 30 31 #define DRV_DESCRIPTION "Intel(R) MLD wireless driver for Linux" 32 MODULE_DESCRIPTION(DRV_DESCRIPTION); 33 MODULE_LICENSE("GPL"); 34 MODULE_IMPORT_NS("IWLWIFI"); 35 36 static const struct iwl_op_mode_ops iwl_mld_ops; 37 38 static int __init iwl_mld_init(void) 39 { 40 int ret = iwl_opmode_register("iwlmld", &iwl_mld_ops); 41 42 if (ret) 43 pr_err("Unable to register MLD op_mode: %d\n", ret); 44 45 return ret; 46 } 47 module_init(iwl_mld_init); 48 49 static void __exit iwl_mld_exit(void) 50 { 51 iwl_opmode_deregister("iwlmld"); 52 } 53 module_exit(iwl_mld_exit); 54 55 static void iwl_mld_hw_set_regulatory(struct iwl_mld *mld) 56 { 57 struct wiphy *wiphy = mld->wiphy; 58 59 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 60 wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; 61 } 62 63 VISIBLE_IF_IWLWIFI_KUNIT 64 void iwl_construct_mld(struct iwl_mld *mld, struct iwl_trans *trans, 65 const struct iwl_rf_cfg *cfg, const struct iwl_fw *fw, 66 struct ieee80211_hw *hw, struct dentry *dbgfs_dir) 67 { 68 mld->dev = trans->dev; 69 mld->trans = trans; 70 mld->cfg = cfg; 71 mld->fw = fw; 72 mld->hw = hw; 73 mld->wiphy = hw->wiphy; 74 mld->debugfs_dir = dbgfs_dir; 75 76 iwl_notification_wait_init(&mld->notif_wait); 77 78 /* Setup async RX handling */ 79 spin_lock_init(&mld->async_handlers_lock); 80 INIT_LIST_HEAD(&mld->async_handlers_list); 81 wiphy_work_init(&mld->async_handlers_wk, 82 iwl_mld_async_handlers_wk); 83 84 /* Dynamic Queue Allocation */ 85 spin_lock_init(&mld->add_txqs_lock); 86 INIT_LIST_HEAD(&mld->txqs_to_add); 87 wiphy_work_init(&mld->add_txqs_wk, iwl_mld_add_txqs_wk); 88 89 /* Setup RX queues sync wait queue */ 90 init_waitqueue_head(&mld->rxq_sync.waitq); 91 } 92 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_construct_mld); 93 94 static void __acquires(&mld->wiphy->mtx) 95 iwl_mld_fwrt_dump_start(void *ctx) 96 { 97 struct iwl_mld *mld = ctx; 98 99 wiphy_lock(mld->wiphy); 100 } 101 102 static void __releases(&mld->wiphy->mtx) 103 iwl_mld_fwrt_dump_end(void *ctx) 104 { 105 struct iwl_mld *mld = ctx; 106 107 wiphy_unlock(mld->wiphy); 108 } 109 110 static bool iwl_mld_d3_debug_enable(void *ctx) 111 { 112 return IWL_MLD_D3_DEBUG; 113 } 114 115 static int iwl_mld_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 116 { 117 struct iwl_mld *mld = (struct iwl_mld *)ctx; 118 int ret; 119 120 wiphy_lock(mld->wiphy); 121 ret = iwl_mld_send_cmd(mld, host_cmd); 122 wiphy_unlock(mld->wiphy); 123 124 return ret; 125 } 126 127 static const struct iwl_fw_runtime_ops iwl_mld_fwrt_ops = { 128 .dump_start = iwl_mld_fwrt_dump_start, 129 .dump_end = iwl_mld_fwrt_dump_end, 130 .send_hcmd = iwl_mld_fwrt_send_hcmd, 131 .d3_debug_enable = iwl_mld_d3_debug_enable, 132 }; 133 134 static void 135 iwl_mld_construct_fw_runtime(struct iwl_mld *mld, struct iwl_trans *trans, 136 const struct iwl_fw *fw, 137 struct dentry *debugfs_dir) 138 { 139 iwl_fw_runtime_init(&mld->fwrt, trans, fw, &iwl_mld_fwrt_ops, mld, 140 NULL, NULL, debugfs_dir); 141 142 iwl_fw_set_current_image(&mld->fwrt, IWL_UCODE_REGULAR); 143 } 144 145 /* Please keep this array *SORTED* by hex value. 146 * Access is done through binary search 147 */ 148 static const struct iwl_hcmd_names iwl_mld_legacy_names[] = { 149 HCMD_NAME(UCODE_ALIVE_NTFY), 150 HCMD_NAME(INIT_COMPLETE_NOTIF), 151 HCMD_NAME(PHY_CONTEXT_CMD), 152 HCMD_NAME(SCAN_CFG_CMD), 153 HCMD_NAME(SCAN_REQ_UMAC), 154 HCMD_NAME(SCAN_ABORT_UMAC), 155 HCMD_NAME(SCAN_COMPLETE_UMAC), 156 HCMD_NAME(TX_CMD), 157 HCMD_NAME(TXPATH_FLUSH), 158 HCMD_NAME(LEDS_CMD), 159 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION), 160 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION), 161 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 162 HCMD_NAME(POWER_TABLE_CMD), 163 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 164 HCMD_NAME(BEACON_NOTIFICATION), 165 HCMD_NAME(BEACON_TEMPLATE_CMD), 166 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 167 HCMD_NAME(REDUCE_TX_POWER_CMD), 168 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 169 HCMD_NAME(MAC_PM_POWER_TABLE), 170 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 171 HCMD_NAME(RSS_CONFIG_CMD), 172 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 173 HCMD_NAME(REPLY_RX_MPDU_CMD), 174 HCMD_NAME(BA_NOTIF), 175 HCMD_NAME(MCC_UPDATE_CMD), 176 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 177 HCMD_NAME(MCAST_FILTER_CMD), 178 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 179 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 180 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 181 HCMD_NAME(WOWLAN_PATTERNS), 182 HCMD_NAME(WOWLAN_CONFIGURATION), 183 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 184 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 185 HCMD_NAME(DEBUG_HOST_COMMAND), 186 HCMD_NAME(LDBG_CONFIG_CMD), 187 }; 188 189 /* Please keep this array *SORTED* by hex value. 190 * Access is done through binary search 191 */ 192 static const struct iwl_hcmd_names iwl_mld_system_names[] = { 193 HCMD_NAME(SHARED_MEM_CFG_CMD), 194 HCMD_NAME(SOC_CONFIGURATION_CMD), 195 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 196 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 197 HCMD_NAME(RFI_CONFIG_CMD), 198 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 199 HCMD_NAME(SYSTEM_STATISTICS_CMD), 200 HCMD_NAME(SYSTEM_STATISTICS_END_NOTIF), 201 }; 202 203 /* Please keep this array *SORTED* by hex value. 204 * Access is done through binary search 205 */ 206 static const struct iwl_hcmd_names iwl_mld_reg_and_nvm_names[] = { 207 HCMD_NAME(LARI_CONFIG_CHANGE), 208 HCMD_NAME(NVM_GET_INFO), 209 HCMD_NAME(TAS_CONFIG), 210 HCMD_NAME(SAR_OFFSET_MAPPING_TABLE_CMD), 211 HCMD_NAME(MCC_ALLOWED_AP_TYPE_CMD), 212 }; 213 214 /* Please keep this array *SORTED* by hex value. 215 * Access is done through binary search 216 */ 217 static const struct iwl_hcmd_names iwl_mld_debug_names[] = { 218 HCMD_NAME(HOST_EVENT_CFG), 219 HCMD_NAME(DBGC_SUSPEND_RESUME), 220 }; 221 222 /* Please keep this array *SORTED* by hex value. 223 * Access is done through binary search 224 */ 225 static const struct iwl_hcmd_names iwl_mld_mac_conf_names[] = { 226 HCMD_NAME(LOW_LATENCY_CMD), 227 HCMD_NAME(SESSION_PROTECTION_CMD), 228 HCMD_NAME(MAC_CONFIG_CMD), 229 HCMD_NAME(LINK_CONFIG_CMD), 230 HCMD_NAME(STA_CONFIG_CMD), 231 HCMD_NAME(AUX_STA_CMD), 232 HCMD_NAME(STA_REMOVE_CMD), 233 HCMD_NAME(ROC_CMD), 234 HCMD_NAME(MISSED_BEACONS_NOTIF), 235 HCMD_NAME(EMLSR_TRANS_FAIL_NOTIF), 236 HCMD_NAME(ROC_NOTIF), 237 HCMD_NAME(CHANNEL_SWITCH_ERROR_NOTIF), 238 HCMD_NAME(SESSION_PROTECTION_NOTIF), 239 HCMD_NAME(PROBE_RESPONSE_DATA_NOTIF), 240 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 241 }; 242 243 /* Please keep this array *SORTED* by hex value. 244 * Access is done through binary search 245 */ 246 static const struct iwl_hcmd_names iwl_mld_data_path_names[] = { 247 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 248 HCMD_NAME(WNM_PLATFORM_PTM_REQUEST_CMD), 249 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 250 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 251 HCMD_NAME(TLC_MNG_CONFIG_CMD), 252 HCMD_NAME(RX_BAID_ALLOCATION_CONFIG_CMD), 253 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 254 HCMD_NAME(ESR_MODE_NOTIF), 255 HCMD_NAME(MONITOR_NOTIF), 256 HCMD_NAME(TLC_MNG_UPDATE_NOTIF), 257 HCMD_NAME(BEACON_FILTER_IN_NOTIF), 258 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 259 }; 260 261 /* Please keep this array *SORTED* by hex value. 262 * Access is done through binary search 263 */ 264 static const struct iwl_hcmd_names iwl_mld_scan_names[] = { 265 HCMD_NAME(CHANNEL_SURVEY_NOTIF), 266 }; 267 268 /* Please keep this array *SORTED* by hex value. 269 * Access is done through binary search 270 */ 271 static const struct iwl_hcmd_names iwl_mld_location_names[] = { 272 HCMD_NAME(TOF_RANGE_REQ_CMD), 273 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 274 }; 275 276 /* Please keep this array *SORTED* by hex value. 277 * Access is done through binary search 278 */ 279 static const struct iwl_hcmd_names iwl_mld_phy_names[] = { 280 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 281 HCMD_NAME(CTDP_CONFIG_CMD), 282 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 283 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 284 HCMD_NAME(CT_KILL_NOTIFICATION), 285 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 286 }; 287 288 /* Please keep this array *SORTED* by hex value. 289 * Access is done through binary search 290 */ 291 static const struct iwl_hcmd_names iwl_mld_statistics_names[] = { 292 HCMD_NAME(STATISTICS_OPER_NOTIF), 293 HCMD_NAME(STATISTICS_OPER_PART1_NOTIF), 294 }; 295 296 /* Please keep this array *SORTED* by hex value. 297 * Access is done through binary search 298 */ 299 static const struct iwl_hcmd_names iwl_mld_prot_offload_names[] = { 300 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), 301 HCMD_NAME(WOWLAN_INFO_NOTIFICATION), 302 HCMD_NAME(D3_END_NOTIFICATION), 303 }; 304 305 /* Please keep this array *SORTED* by hex value. 306 * Access is done through binary search 307 */ 308 static const struct iwl_hcmd_names iwl_mld_coex_names[] = { 309 HCMD_NAME(PROFILE_NOTIF), 310 }; 311 312 VISIBLE_IF_IWLWIFI_KUNIT 313 const struct iwl_hcmd_arr iwl_mld_groups[] = { 314 [LEGACY_GROUP] = HCMD_ARR(iwl_mld_legacy_names), 315 [LONG_GROUP] = HCMD_ARR(iwl_mld_legacy_names), 316 [SYSTEM_GROUP] = HCMD_ARR(iwl_mld_system_names), 317 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mld_mac_conf_names), 318 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mld_data_path_names), 319 [SCAN_GROUP] = HCMD_ARR(iwl_mld_scan_names), 320 [LOCATION_GROUP] = HCMD_ARR(iwl_mld_location_names), 321 [REGULATORY_AND_NVM_GROUP] = HCMD_ARR(iwl_mld_reg_and_nvm_names), 322 [DEBUG_GROUP] = HCMD_ARR(iwl_mld_debug_names), 323 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mld_phy_names), 324 [STATISTICS_GROUP] = HCMD_ARR(iwl_mld_statistics_names), 325 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mld_prot_offload_names), 326 [BT_COEX_GROUP] = HCMD_ARR(iwl_mld_coex_names), 327 }; 328 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_mld_groups); 329 330 #if IS_ENABLED(CONFIG_IWLWIFI_KUNIT_TESTS) 331 const unsigned int global_iwl_mld_goups_size = ARRAY_SIZE(iwl_mld_groups); 332 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(global_iwl_mld_goups_size); 333 #endif 334 335 static void 336 iwl_mld_configure_trans(struct iwl_op_mode *op_mode) 337 { 338 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 339 static const u8 no_reclaim_cmds[] = {TX_CMD}; 340 struct iwl_trans *trans = mld->trans; 341 u32 eckv_value; 342 343 iwl_bios_setup_step(trans, &mld->fwrt); 344 iwl_uefi_get_step_table(trans); 345 346 if (iwl_bios_get_eckv(&mld->fwrt, &eckv_value)) 347 IWL_DEBUG_RADIO(mld, "ECKV table doesn't exist in BIOS\n"); 348 else 349 trans->conf.ext_32khz_clock_valid = !!eckv_value; 350 351 trans->conf.rx_buf_size = iwl_amsdu_size_to_rxb_size(); 352 trans->conf.command_groups = iwl_mld_groups; 353 trans->conf.command_groups_size = ARRAY_SIZE(iwl_mld_groups); 354 trans->conf.fw_reset_handshake = true; 355 trans->conf.queue_alloc_cmd_ver = 356 iwl_fw_lookup_cmd_ver(mld->fw, WIDE_ID(DATA_PATH_GROUP, 357 SCD_QUEUE_CONFIG_CMD), 358 0); 359 trans->conf.cb_data_offs = offsetof(struct ieee80211_tx_info, 360 driver_data[2]); 361 BUILD_BUG_ON(sizeof(no_reclaim_cmds) > 362 sizeof(trans->conf.no_reclaim_cmds)); 363 memcpy(trans->conf.no_reclaim_cmds, no_reclaim_cmds, 364 sizeof(no_reclaim_cmds)); 365 trans->conf.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 366 367 trans->conf.rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 368 trans->conf.rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc); 369 trans->conf.wide_cmd_header = true; 370 371 iwl_trans_op_mode_enter(trans, op_mode); 372 } 373 374 /* 375 ***************************************************** 376 * op mode ops functions 377 ***************************************************** 378 */ 379 380 #define NUM_FW_LOAD_RETRIES 3 381 static struct iwl_op_mode * 382 iwl_op_mode_mld_start(struct iwl_trans *trans, const struct iwl_rf_cfg *cfg, 383 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 384 { 385 struct ieee80211_hw *hw; 386 struct iwl_op_mode *op_mode; 387 struct iwl_mld *mld; 388 int ret; 389 390 /* Allocate and initialize a new hardware device */ 391 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 392 sizeof(struct iwl_mld), 393 &iwl_mld_hw_ops); 394 if (!hw) 395 return ERR_PTR(-ENOMEM); 396 397 op_mode = hw->priv; 398 399 op_mode->ops = &iwl_mld_ops; 400 401 mld = IWL_OP_MODE_GET_MLD(op_mode); 402 403 iwl_construct_mld(mld, trans, cfg, fw, hw, dbgfs_dir); 404 405 /* we'll verify later it matches between commands */ 406 mld->fw_rates_ver_3 = iwl_fw_lookup_cmd_ver(mld->fw, TX_CMD, 0) >= 11; 407 408 iwl_mld_construct_fw_runtime(mld, trans, fw, dbgfs_dir); 409 410 iwl_mld_get_bios_tables(mld); 411 iwl_uefi_get_sgom_table(trans, &mld->fwrt); 412 mld->bios_enable_puncturing = iwl_uefi_get_puncturing(&mld->fwrt); 413 414 iwl_mld_hw_set_regulatory(mld); 415 416 /* Configure transport layer with the opmode specific params */ 417 iwl_mld_configure_trans(op_mode); 418 419 /* needed for regulatory init */ 420 rtnl_lock(); 421 /* Needed for sending commands */ 422 wiphy_lock(mld->wiphy); 423 424 for (int i = 0; i < NUM_FW_LOAD_RETRIES; i++) { 425 ret = iwl_mld_load_fw(mld); 426 if (!ret) 427 break; 428 } 429 430 if (!ret) { 431 mld->nvm_data = iwl_get_nvm(mld->trans, mld->fw, 0, 0); 432 if (IS_ERR(mld->nvm_data)) { 433 IWL_ERR(mld, "Failed to read NVM: %d\n", ret); 434 ret = PTR_ERR(mld->nvm_data); 435 } 436 } 437 438 if (ret) { 439 wiphy_unlock(mld->wiphy); 440 rtnl_unlock(); 441 goto err; 442 } 443 444 /* We are about to stop the FW. Notifications may require an 445 * operational FW, so handle them all here before we stop. 446 */ 447 wiphy_work_flush(mld->wiphy, &mld->async_handlers_wk); 448 449 iwl_mld_stop_fw(mld); 450 451 wiphy_unlock(mld->wiphy); 452 rtnl_unlock(); 453 454 ret = iwl_mld_leds_init(mld); 455 if (ret) 456 goto free_nvm; 457 458 ret = iwl_mld_alloc_scan_cmd(mld); 459 if (ret) 460 goto leds_exit; 461 462 ret = iwl_mld_low_latency_init(mld); 463 if (ret) 464 goto free_scan_cmd; 465 466 ret = iwl_mld_register_hw(mld); 467 if (ret) 468 goto low_latency_free; 469 470 iwl_mld_toggle_tx_ant(mld, &mld->mgmt_tx_ant); 471 472 iwl_mld_add_debugfs_files(mld, dbgfs_dir); 473 iwl_mld_thermal_initialize(mld); 474 475 iwl_mld_ptp_init(mld); 476 477 return op_mode; 478 479 low_latency_free: 480 iwl_mld_low_latency_free(mld); 481 free_scan_cmd: 482 kfree(mld->scan.cmd); 483 leds_exit: 484 iwl_mld_leds_exit(mld); 485 free_nvm: 486 kfree(mld->nvm_data); 487 err: 488 iwl_trans_op_mode_leave(mld->trans); 489 ieee80211_free_hw(mld->hw); 490 return ERR_PTR(ret); 491 } 492 493 static void 494 iwl_op_mode_mld_stop(struct iwl_op_mode *op_mode) 495 { 496 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 497 498 iwl_mld_ptp_remove(mld); 499 iwl_mld_leds_exit(mld); 500 501 iwl_mld_thermal_exit(mld); 502 503 wiphy_lock(mld->wiphy); 504 iwl_mld_low_latency_stop(mld); 505 iwl_mld_deinit_time_sync(mld); 506 wiphy_unlock(mld->wiphy); 507 508 ieee80211_unregister_hw(mld->hw); 509 510 iwl_fw_runtime_free(&mld->fwrt); 511 iwl_mld_low_latency_free(mld); 512 513 iwl_trans_op_mode_leave(mld->trans); 514 515 kfree(mld->nvm_data); 516 kfree(mld->scan.cmd); 517 kfree(mld->channel_survey); 518 kfree(mld->error_recovery_buf); 519 kfree(mld->mcast_filter_cmd); 520 521 ieee80211_free_hw(mld->hw); 522 } 523 524 static void iwl_mld_queue_state_change(struct iwl_op_mode *op_mode, 525 int hw_queue, bool queue_full) 526 { 527 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 528 struct ieee80211_txq *txq; 529 struct iwl_mld_sta *mld_sta; 530 struct iwl_mld_txq *mld_txq; 531 532 rcu_read_lock(); 533 534 txq = rcu_dereference(mld->fw_id_to_txq[hw_queue]); 535 if (!txq) { 536 rcu_read_unlock(); 537 538 if (queue_full) { 539 /* An internal queue is not expected to become full */ 540 IWL_WARN(mld, 541 "Internal hw_queue %d is full! stopping all queues\n", 542 hw_queue); 543 /* Stop all queues, as an internal queue is not 544 * mapped to a mac80211 one 545 */ 546 ieee80211_stop_queues(mld->hw); 547 } else { 548 ieee80211_wake_queues(mld->hw); 549 } 550 551 return; 552 } 553 554 mld_txq = iwl_mld_txq_from_mac80211(txq); 555 mld_sta = txq->sta ? iwl_mld_sta_from_mac80211(txq->sta) : NULL; 556 557 mld_txq->status.stop_full = queue_full; 558 559 if (!queue_full && mld_sta && 560 mld_sta->sta_state != IEEE80211_STA_NOTEXIST) { 561 local_bh_disable(); 562 iwl_mld_tx_from_txq(mld, txq); 563 local_bh_enable(); 564 } 565 566 rcu_read_unlock(); 567 } 568 569 static void 570 iwl_mld_queue_full(struct iwl_op_mode *op_mode, int hw_queue) 571 { 572 iwl_mld_queue_state_change(op_mode, hw_queue, true); 573 } 574 575 static void 576 iwl_mld_queue_not_full(struct iwl_op_mode *op_mode, int hw_queue) 577 { 578 iwl_mld_queue_state_change(op_mode, hw_queue, false); 579 } 580 581 static bool 582 iwl_mld_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 583 { 584 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 585 586 iwl_mld_set_hwkill(mld, state); 587 588 return false; 589 } 590 591 static void 592 iwl_mld_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 593 { 594 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 595 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 596 597 iwl_trans_free_tx_cmd(mld->trans, info->driver_data[1]); 598 ieee80211_free_txskb(mld->hw, skb); 599 } 600 601 static void iwl_mld_read_error_recovery_buffer(struct iwl_mld *mld) 602 { 603 u32 src_size = mld->fw->ucode_capa.error_log_size; 604 u32 src_addr = mld->fw->ucode_capa.error_log_addr; 605 u8 *recovery_buf; 606 int ret; 607 608 /* no recovery buffer size defined in a TLV */ 609 if (!src_size) 610 return; 611 612 recovery_buf = kzalloc(src_size, GFP_ATOMIC); 613 if (!recovery_buf) 614 return; 615 616 ret = iwl_trans_read_mem_bytes(mld->trans, src_addr, 617 recovery_buf, src_size); 618 if (ret) { 619 IWL_ERR(mld, "Failed to read error recovery buffer (%d)\n", 620 ret); 621 kfree(recovery_buf); 622 return; 623 } 624 625 mld->error_recovery_buf = recovery_buf; 626 } 627 628 static void iwl_mld_restart_nic(struct iwl_mld *mld) 629 { 630 iwl_mld_read_error_recovery_buffer(mld); 631 632 mld->fwrt.trans->dbg.restart_required = false; 633 634 ieee80211_restart_hw(mld->hw); 635 } 636 637 static void 638 iwl_mld_nic_error(struct iwl_op_mode *op_mode, 639 enum iwl_fw_error_type type) 640 { 641 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 642 bool trans_dead = iwl_trans_is_dead(mld->trans); 643 644 if (type == IWL_ERR_TYPE_CMD_QUEUE_FULL) 645 IWL_ERR(mld, "Command queue full!\n"); 646 else if (!trans_dead && !mld->fw_status.do_not_dump_once) 647 iwl_fwrt_dump_error_logs(&mld->fwrt); 648 649 mld->fw_status.do_not_dump_once = false; 650 651 /* It is necessary to abort any os scan here because mac80211 requires 652 * having the scan cleared before restarting. 653 * We'll reset the scan_status to NONE in restart cleanup in 654 * the next drv_start() call from mac80211. If ieee80211_hw_restart 655 * isn't called scan status will stay busy. 656 */ 657 iwl_mld_report_scan_aborted(mld); 658 659 /* 660 * This should be first thing before trying to collect any 661 * data to avoid endless loops if any HW error happens while 662 * collecting debug data. 663 * It might not actually be true that we'll restart, but the 664 * setting doesn't matter if we're going to be unbound either. 665 */ 666 if (type != IWL_ERR_TYPE_RESET_HS_TIMEOUT && 667 mld->fw_status.running) 668 mld->fw_status.in_hw_restart = true; 669 } 670 671 static void iwl_mld_dump_error(struct iwl_op_mode *op_mode, 672 struct iwl_fw_error_dump_mode *mode) 673 { 674 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 675 676 /* if we come in from opmode we have the mutex held */ 677 if (mode->context == IWL_ERR_CONTEXT_FROM_OPMODE) { 678 lockdep_assert_wiphy(mld->wiphy); 679 iwl_fw_error_collect(&mld->fwrt); 680 } else { 681 wiphy_lock(mld->wiphy); 682 if (mode->context != IWL_ERR_CONTEXT_ABORT) 683 iwl_fw_error_collect(&mld->fwrt); 684 wiphy_unlock(mld->wiphy); 685 } 686 } 687 688 static bool iwl_mld_sw_reset(struct iwl_op_mode *op_mode, 689 enum iwl_fw_error_type type) 690 { 691 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 692 693 /* SW reset can happen for TOP error w/o NIC error, so 694 * also abort scan here and set in_hw_restart, when we 695 * had a NIC error both were already done. 696 */ 697 iwl_mld_report_scan_aborted(mld); 698 mld->fw_status.in_hw_restart = true; 699 700 /* Do restart only in the following conditions are met: 701 * - we consider the FW as running 702 * - The trigger that brought us here is defined as one that requires 703 * a restart (in the debug TLVs) 704 */ 705 if (!mld->fw_status.running || !mld->fwrt.trans->dbg.restart_required) 706 return false; 707 708 iwl_mld_restart_nic(mld); 709 return true; 710 } 711 712 static void 713 iwl_mld_time_point(struct iwl_op_mode *op_mode, 714 enum iwl_fw_ini_time_point tp_id, 715 union iwl_dbg_tlv_tp_data *tp_data) 716 { 717 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 718 719 iwl_dbg_tlv_time_point(&mld->fwrt, tp_id, tp_data); 720 } 721 722 #ifdef CONFIG_PM_SLEEP 723 static void iwl_mld_device_powered_off(struct iwl_op_mode *op_mode) 724 { 725 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 726 727 wiphy_lock(mld->wiphy); 728 iwl_mld_stop_fw(mld); 729 mld->fw_status.in_d3 = false; 730 wiphy_unlock(mld->wiphy); 731 } 732 #else 733 static void iwl_mld_device_powered_off(struct iwl_op_mode *op_mode) 734 {} 735 #endif 736 737 static void iwl_mld_dump(struct iwl_op_mode *op_mode) 738 { 739 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 740 struct iwl_fw_runtime *fwrt = &mld->fwrt; 741 742 if (!iwl_trans_fw_running(fwrt->trans)) 743 return; 744 745 iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, NULL); 746 } 747 748 static const struct iwl_op_mode_ops iwl_mld_ops = { 749 .start = iwl_op_mode_mld_start, 750 .stop = iwl_op_mode_mld_stop, 751 .rx = iwl_mld_rx, 752 .rx_rss = iwl_mld_rx_rss, 753 .queue_full = iwl_mld_queue_full, 754 .queue_not_full = iwl_mld_queue_not_full, 755 .hw_rf_kill = iwl_mld_set_hw_rfkill_state, 756 .free_skb = iwl_mld_free_skb, 757 .nic_error = iwl_mld_nic_error, 758 .dump_error = iwl_mld_dump_error, 759 .sw_reset = iwl_mld_sw_reset, 760 .time_point = iwl_mld_time_point, 761 .device_powered_off = pm_sleep_ptr(iwl_mld_device_powered_off), 762 .dump = iwl_mld_dump, 763 }; 764 765 struct iwl_mld_mod_params iwlmld_mod_params = { 766 .power_scheme = IWL_POWER_SCHEME_BPS, 767 }; 768 769 module_param_named(power_scheme, iwlmld_mod_params.power_scheme, int, 0444); 770 MODULE_PARM_DESC(power_scheme, 771 "power management scheme: 1-active, 2-balanced, default: 2"); 772