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(REPLY_ERROR), 151 HCMD_NAME(INIT_COMPLETE_NOTIF), 152 HCMD_NAME(PHY_CONTEXT_CMD), 153 HCMD_NAME(SCAN_CFG_CMD), 154 HCMD_NAME(SCAN_REQ_UMAC), 155 HCMD_NAME(SCAN_ABORT_UMAC), 156 HCMD_NAME(SCAN_COMPLETE_UMAC), 157 HCMD_NAME(TX_CMD), 158 HCMD_NAME(TXPATH_FLUSH), 159 HCMD_NAME(LEDS_CMD), 160 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION), 161 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION), 162 HCMD_NAME(PHY_CONFIGURATION_CMD), 163 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 164 HCMD_NAME(POWER_TABLE_CMD), 165 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 166 HCMD_NAME(BEACON_NOTIFICATION), 167 HCMD_NAME(BEACON_TEMPLATE_CMD), 168 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 169 HCMD_NAME(BT_CONFIG), 170 HCMD_NAME(REDUCE_TX_POWER_CMD), 171 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 172 HCMD_NAME(MAC_PM_POWER_TABLE), 173 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 174 HCMD_NAME(RSS_CONFIG_CMD), 175 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 176 HCMD_NAME(REPLY_RX_MPDU_CMD), 177 HCMD_NAME(BA_NOTIF), 178 HCMD_NAME(MCC_UPDATE_CMD), 179 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 180 HCMD_NAME(MCAST_FILTER_CMD), 181 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 182 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 183 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 184 HCMD_NAME(WOWLAN_PATTERNS), 185 HCMD_NAME(WOWLAN_CONFIGURATION), 186 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 187 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 188 HCMD_NAME(DEBUG_HOST_COMMAND), 189 HCMD_NAME(LDBG_CONFIG_CMD), 190 }; 191 192 /* Please keep this array *SORTED* by hex value. 193 * Access is done through binary search 194 */ 195 static const struct iwl_hcmd_names iwl_mld_system_names[] = { 196 HCMD_NAME(SHARED_MEM_CFG_CMD), 197 HCMD_NAME(SOC_CONFIGURATION_CMD), 198 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 199 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 200 HCMD_NAME(RFI_CONFIG_CMD), 201 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 202 HCMD_NAME(SYSTEM_STATISTICS_CMD), 203 HCMD_NAME(SYSTEM_STATISTICS_END_NOTIF), 204 }; 205 206 /* Please keep this array *SORTED* by hex value. 207 * Access is done through binary search 208 */ 209 static const struct iwl_hcmd_names iwl_mld_reg_and_nvm_names[] = { 210 HCMD_NAME(LARI_CONFIG_CHANGE), 211 HCMD_NAME(NVM_GET_INFO), 212 HCMD_NAME(TAS_CONFIG), 213 HCMD_NAME(SAR_OFFSET_MAPPING_TABLE_CMD), 214 HCMD_NAME(MCC_ALLOWED_AP_TYPE_CMD), 215 }; 216 217 /* Please keep this array *SORTED* by hex value. 218 * Access is done through binary search 219 */ 220 static const struct iwl_hcmd_names iwl_mld_debug_names[] = { 221 HCMD_NAME(HOST_EVENT_CFG), 222 HCMD_NAME(DBGC_SUSPEND_RESUME), 223 }; 224 225 /* Please keep this array *SORTED* by hex value. 226 * Access is done through binary search 227 */ 228 static const struct iwl_hcmd_names iwl_mld_mac_conf_names[] = { 229 HCMD_NAME(LOW_LATENCY_CMD), 230 HCMD_NAME(SESSION_PROTECTION_CMD), 231 HCMD_NAME(MAC_CONFIG_CMD), 232 HCMD_NAME(LINK_CONFIG_CMD), 233 HCMD_NAME(STA_CONFIG_CMD), 234 HCMD_NAME(AUX_STA_CMD), 235 HCMD_NAME(STA_REMOVE_CMD), 236 HCMD_NAME(ROC_CMD), 237 HCMD_NAME(MISSED_BEACONS_NOTIF), 238 HCMD_NAME(EMLSR_TRANS_FAIL_NOTIF), 239 HCMD_NAME(ROC_NOTIF), 240 HCMD_NAME(CHANNEL_SWITCH_ERROR_NOTIF), 241 HCMD_NAME(SESSION_PROTECTION_NOTIF), 242 HCMD_NAME(PROBE_RESPONSE_DATA_NOTIF), 243 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 244 }; 245 246 /* Please keep this array *SORTED* by hex value. 247 * Access is done through binary search 248 */ 249 static const struct iwl_hcmd_names iwl_mld_data_path_names[] = { 250 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 251 HCMD_NAME(WNM_PLATFORM_PTM_REQUEST_CMD), 252 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), 253 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 254 HCMD_NAME(TLC_MNG_CONFIG_CMD), 255 HCMD_NAME(RX_BAID_ALLOCATION_CONFIG_CMD), 256 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 257 HCMD_NAME(SEC_KEY_CMD), 258 HCMD_NAME(ESR_MODE_NOTIF), 259 HCMD_NAME(MONITOR_NOTIF), 260 HCMD_NAME(TLC_MNG_UPDATE_NOTIF), 261 HCMD_NAME(BEACON_FILTER_IN_NOTIF), 262 HCMD_NAME(PHY_AIR_SNIFFER_NOTIF), 263 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 264 }; 265 266 /* Please keep this array *SORTED* by hex value. 267 * Access is done through binary search 268 */ 269 static const struct iwl_hcmd_names iwl_mld_scan_names[] = { 270 HCMD_NAME(CHANNEL_SURVEY_NOTIF), 271 }; 272 273 /* Please keep this array *SORTED* by hex value. 274 * Access is done through binary search 275 */ 276 static const struct iwl_hcmd_names iwl_mld_location_names[] = { 277 HCMD_NAME(TOF_RANGE_REQ_CMD), 278 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 279 }; 280 281 /* Please keep this array *SORTED* by hex value. 282 * Access is done through binary search 283 */ 284 static const struct iwl_hcmd_names iwl_mld_phy_names[] = { 285 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 286 HCMD_NAME(CTDP_CONFIG_CMD), 287 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 288 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 289 HCMD_NAME(CT_KILL_NOTIFICATION), 290 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 291 }; 292 293 /* Please keep this array *SORTED* by hex value. 294 * Access is done through binary search 295 */ 296 static const struct iwl_hcmd_names iwl_mld_statistics_names[] = { 297 HCMD_NAME(STATISTICS_OPER_NOTIF), 298 HCMD_NAME(STATISTICS_OPER_PART1_NOTIF), 299 }; 300 301 /* Please keep this array *SORTED* by hex value. 302 * Access is done through binary search 303 */ 304 static const struct iwl_hcmd_names iwl_mld_prot_offload_names[] = { 305 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), 306 HCMD_NAME(WOWLAN_INFO_NOTIFICATION), 307 HCMD_NAME(D3_END_NOTIFICATION), 308 }; 309 310 /* Please keep this array *SORTED* by hex value. 311 * Access is done through binary search 312 */ 313 static const struct iwl_hcmd_names iwl_mld_coex_names[] = { 314 HCMD_NAME(PROFILE_NOTIF), 315 }; 316 317 VISIBLE_IF_IWLWIFI_KUNIT 318 const struct iwl_hcmd_arr iwl_mld_groups[] = { 319 [LEGACY_GROUP] = HCMD_ARR(iwl_mld_legacy_names), 320 [LONG_GROUP] = HCMD_ARR(iwl_mld_legacy_names), 321 [SYSTEM_GROUP] = HCMD_ARR(iwl_mld_system_names), 322 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mld_mac_conf_names), 323 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mld_data_path_names), 324 [SCAN_GROUP] = HCMD_ARR(iwl_mld_scan_names), 325 [LOCATION_GROUP] = HCMD_ARR(iwl_mld_location_names), 326 [REGULATORY_AND_NVM_GROUP] = HCMD_ARR(iwl_mld_reg_and_nvm_names), 327 [DEBUG_GROUP] = HCMD_ARR(iwl_mld_debug_names), 328 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mld_phy_names), 329 [STATISTICS_GROUP] = HCMD_ARR(iwl_mld_statistics_names), 330 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mld_prot_offload_names), 331 [BT_COEX_GROUP] = HCMD_ARR(iwl_mld_coex_names), 332 }; 333 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_mld_groups); 334 335 #if IS_ENABLED(CONFIG_IWLWIFI_KUNIT_TESTS) 336 const unsigned int global_iwl_mld_goups_size = ARRAY_SIZE(iwl_mld_groups); 337 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(global_iwl_mld_goups_size); 338 #endif 339 340 static void 341 iwl_mld_configure_trans(struct iwl_op_mode *op_mode) 342 { 343 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 344 static const u8 no_reclaim_cmds[] = {TX_CMD}; 345 struct iwl_trans *trans = mld->trans; 346 u32 eckv_value; 347 348 iwl_bios_setup_step(trans, &mld->fwrt); 349 iwl_uefi_get_step_table(trans); 350 351 if (iwl_bios_get_eckv(&mld->fwrt, &eckv_value)) 352 IWL_DEBUG_RADIO(mld, "ECKV table doesn't exist in BIOS\n"); 353 else 354 trans->conf.ext_32khz_clock_valid = !!eckv_value; 355 356 trans->conf.rx_buf_size = iwl_amsdu_size_to_rxb_size(); 357 trans->conf.command_groups = iwl_mld_groups; 358 trans->conf.command_groups_size = ARRAY_SIZE(iwl_mld_groups); 359 trans->conf.fw_reset_handshake = true; 360 trans->conf.queue_alloc_cmd_ver = 361 iwl_fw_lookup_cmd_ver(mld->fw, WIDE_ID(DATA_PATH_GROUP, 362 SCD_QUEUE_CONFIG_CMD), 363 0); 364 trans->conf.cb_data_offs = offsetof(struct ieee80211_tx_info, 365 driver_data[2]); 366 BUILD_BUG_ON(sizeof(no_reclaim_cmds) > 367 sizeof(trans->conf.no_reclaim_cmds)); 368 memcpy(trans->conf.no_reclaim_cmds, no_reclaim_cmds, 369 sizeof(no_reclaim_cmds)); 370 trans->conf.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 371 372 trans->conf.rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 373 trans->conf.rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc); 374 trans->conf.wide_cmd_header = true; 375 376 iwl_trans_op_mode_enter(trans, op_mode); 377 } 378 379 /* 380 ***************************************************** 381 * op mode ops functions 382 ***************************************************** 383 */ 384 385 #define NUM_FW_LOAD_RETRIES 3 386 static struct iwl_op_mode * 387 iwl_op_mode_mld_start(struct iwl_trans *trans, const struct iwl_rf_cfg *cfg, 388 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 389 { 390 struct ieee80211_hw *hw; 391 struct iwl_op_mode *op_mode; 392 struct iwl_mld *mld; 393 int ret; 394 395 /* Allocate and initialize a new hardware device */ 396 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 397 sizeof(struct iwl_mld), 398 &iwl_mld_hw_ops); 399 if (!hw) 400 return ERR_PTR(-ENOMEM); 401 402 op_mode = hw->priv; 403 404 op_mode->ops = &iwl_mld_ops; 405 406 mld = IWL_OP_MODE_GET_MLD(op_mode); 407 408 iwl_construct_mld(mld, trans, cfg, fw, hw, dbgfs_dir); 409 410 /* we'll verify later it matches between commands */ 411 mld->fw_rates_ver_3 = iwl_fw_lookup_cmd_ver(mld->fw, TX_CMD, 0) >= 11; 412 413 iwl_mld_construct_fw_runtime(mld, trans, fw, dbgfs_dir); 414 415 iwl_mld_get_bios_tables(mld); 416 iwl_uefi_get_sgom_table(trans, &mld->fwrt); 417 mld->bios_enable_puncturing = iwl_uefi_get_puncturing(&mld->fwrt); 418 419 iwl_mld_hw_set_regulatory(mld); 420 421 /* Configure transport layer with the opmode specific params */ 422 iwl_mld_configure_trans(op_mode); 423 424 /* needed for regulatory init */ 425 rtnl_lock(); 426 /* Needed for sending commands */ 427 wiphy_lock(mld->wiphy); 428 429 for (int i = 0; i < NUM_FW_LOAD_RETRIES; i++) { 430 ret = iwl_mld_load_fw(mld); 431 if (!ret) 432 break; 433 } 434 435 if (!ret) { 436 mld->nvm_data = iwl_get_nvm(mld->trans, mld->fw, 0, 0); 437 if (IS_ERR(mld->nvm_data)) { 438 IWL_ERR(mld, "Failed to read NVM: %d\n", ret); 439 ret = PTR_ERR(mld->nvm_data); 440 } 441 } 442 443 if (ret) { 444 wiphy_unlock(mld->wiphy); 445 rtnl_unlock(); 446 goto err; 447 } 448 449 /* We are about to stop the FW. Notifications may require an 450 * operational FW, so handle them all here before we stop. 451 */ 452 wiphy_work_flush(mld->wiphy, &mld->async_handlers_wk); 453 454 iwl_mld_stop_fw(mld); 455 456 wiphy_unlock(mld->wiphy); 457 rtnl_unlock(); 458 459 ret = iwl_mld_leds_init(mld); 460 if (ret) 461 goto free_nvm; 462 463 ret = iwl_mld_alloc_scan_cmd(mld); 464 if (ret) 465 goto leds_exit; 466 467 ret = iwl_mld_low_latency_init(mld); 468 if (ret) 469 goto free_scan_cmd; 470 471 ret = iwl_mld_register_hw(mld); 472 if (ret) 473 goto low_latency_free; 474 475 iwl_mld_toggle_tx_ant(mld, &mld->mgmt_tx_ant); 476 477 iwl_mld_add_debugfs_files(mld, dbgfs_dir); 478 iwl_mld_thermal_initialize(mld); 479 480 iwl_mld_ptp_init(mld); 481 482 return op_mode; 483 484 low_latency_free: 485 iwl_mld_low_latency_free(mld); 486 free_scan_cmd: 487 kfree(mld->scan.cmd); 488 leds_exit: 489 iwl_mld_leds_exit(mld); 490 free_nvm: 491 kfree(mld->nvm_data); 492 err: 493 iwl_trans_op_mode_leave(mld->trans); 494 ieee80211_free_hw(mld->hw); 495 return ERR_PTR(ret); 496 } 497 498 static void 499 iwl_op_mode_mld_stop(struct iwl_op_mode *op_mode) 500 { 501 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 502 503 iwl_mld_ptp_remove(mld); 504 iwl_mld_leds_exit(mld); 505 506 iwl_mld_thermal_exit(mld); 507 508 wiphy_lock(mld->wiphy); 509 iwl_mld_low_latency_stop(mld); 510 iwl_mld_deinit_time_sync(mld); 511 wiphy_unlock(mld->wiphy); 512 513 ieee80211_unregister_hw(mld->hw); 514 515 iwl_fw_runtime_free(&mld->fwrt); 516 iwl_mld_low_latency_free(mld); 517 518 iwl_trans_op_mode_leave(mld->trans); 519 520 kfree(mld->nvm_data); 521 kfree(mld->scan.cmd); 522 kfree(mld->channel_survey); 523 kfree(mld->error_recovery_buf); 524 kfree(mld->mcast_filter_cmd); 525 526 ieee80211_free_hw(mld->hw); 527 } 528 529 static void iwl_mld_queue_state_change(struct iwl_op_mode *op_mode, 530 int hw_queue, bool queue_full) 531 { 532 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 533 struct ieee80211_txq *txq; 534 struct iwl_mld_sta *mld_sta; 535 struct iwl_mld_txq *mld_txq; 536 537 rcu_read_lock(); 538 539 txq = rcu_dereference(mld->fw_id_to_txq[hw_queue]); 540 if (!txq) { 541 rcu_read_unlock(); 542 543 if (queue_full) { 544 /* An internal queue is not expected to become full */ 545 IWL_WARN(mld, 546 "Internal hw_queue %d is full! stopping all queues\n", 547 hw_queue); 548 /* Stop all queues, as an internal queue is not 549 * mapped to a mac80211 one 550 */ 551 ieee80211_stop_queues(mld->hw); 552 } else { 553 ieee80211_wake_queues(mld->hw); 554 } 555 556 return; 557 } 558 559 mld_txq = iwl_mld_txq_from_mac80211(txq); 560 mld_sta = txq->sta ? iwl_mld_sta_from_mac80211(txq->sta) : NULL; 561 562 mld_txq->status.stop_full = queue_full; 563 564 if (!queue_full && mld_sta && 565 mld_sta->sta_state != IEEE80211_STA_NOTEXIST) { 566 local_bh_disable(); 567 iwl_mld_tx_from_txq(mld, txq); 568 local_bh_enable(); 569 } 570 571 rcu_read_unlock(); 572 } 573 574 static void 575 iwl_mld_queue_full(struct iwl_op_mode *op_mode, int hw_queue) 576 { 577 iwl_mld_queue_state_change(op_mode, hw_queue, true); 578 } 579 580 static void 581 iwl_mld_queue_not_full(struct iwl_op_mode *op_mode, int hw_queue) 582 { 583 iwl_mld_queue_state_change(op_mode, hw_queue, false); 584 } 585 586 static bool 587 iwl_mld_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 588 { 589 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 590 591 iwl_mld_set_hwkill(mld, state); 592 593 return false; 594 } 595 596 static void 597 iwl_mld_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 598 { 599 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 600 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 601 602 iwl_trans_free_tx_cmd(mld->trans, info->driver_data[1]); 603 ieee80211_free_txskb(mld->hw, skb); 604 } 605 606 static void iwl_mld_read_error_recovery_buffer(struct iwl_mld *mld) 607 { 608 u32 src_size = mld->fw->ucode_capa.error_log_size; 609 u32 src_addr = mld->fw->ucode_capa.error_log_addr; 610 u8 *recovery_buf; 611 int ret; 612 613 /* no recovery buffer size defined in a TLV */ 614 if (!src_size) 615 return; 616 617 recovery_buf = kzalloc(src_size, GFP_ATOMIC); 618 if (!recovery_buf) 619 return; 620 621 ret = iwl_trans_read_mem_bytes(mld->trans, src_addr, 622 recovery_buf, src_size); 623 if (ret) { 624 IWL_ERR(mld, "Failed to read error recovery buffer (%d)\n", 625 ret); 626 kfree(recovery_buf); 627 return; 628 } 629 630 mld->error_recovery_buf = recovery_buf; 631 } 632 633 static void iwl_mld_restart_nic(struct iwl_mld *mld) 634 { 635 iwl_mld_read_error_recovery_buffer(mld); 636 637 mld->fwrt.trans->dbg.restart_required = false; 638 639 ieee80211_restart_hw(mld->hw); 640 } 641 642 static void 643 iwl_mld_nic_error(struct iwl_op_mode *op_mode, 644 enum iwl_fw_error_type type) 645 { 646 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 647 bool trans_dead = iwl_trans_is_dead(mld->trans); 648 649 if (type == IWL_ERR_TYPE_CMD_QUEUE_FULL) 650 IWL_ERR(mld, "Command queue full!\n"); 651 else if (!trans_dead && !mld->fw_status.do_not_dump_once) 652 iwl_fwrt_dump_error_logs(&mld->fwrt); 653 654 mld->fw_status.do_not_dump_once = false; 655 656 /* It is necessary to abort any os scan here because mac80211 requires 657 * having the scan cleared before restarting. 658 * We'll reset the scan_status to NONE in restart cleanup in 659 * the next drv_start() call from mac80211. If ieee80211_hw_restart 660 * isn't called scan status will stay busy. 661 */ 662 iwl_mld_report_scan_aborted(mld); 663 664 /* 665 * This should be first thing before trying to collect any 666 * data to avoid endless loops if any HW error happens while 667 * collecting debug data. 668 * It might not actually be true that we'll restart, but the 669 * setting doesn't matter if we're going to be unbound either. 670 */ 671 if (type != IWL_ERR_TYPE_RESET_HS_TIMEOUT && 672 mld->fw_status.running) 673 mld->fw_status.in_hw_restart = true; 674 } 675 676 static void iwl_mld_dump_error(struct iwl_op_mode *op_mode, 677 struct iwl_fw_error_dump_mode *mode) 678 { 679 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 680 681 /* if we come in from opmode we have the mutex held */ 682 if (mode->context == IWL_ERR_CONTEXT_FROM_OPMODE) { 683 lockdep_assert_wiphy(mld->wiphy); 684 iwl_fw_error_collect(&mld->fwrt); 685 } else { 686 wiphy_lock(mld->wiphy); 687 if (mode->context != IWL_ERR_CONTEXT_ABORT) 688 iwl_fw_error_collect(&mld->fwrt); 689 wiphy_unlock(mld->wiphy); 690 } 691 } 692 693 static bool iwl_mld_sw_reset(struct iwl_op_mode *op_mode, 694 enum iwl_fw_error_type type) 695 { 696 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 697 698 /* SW reset can happen for TOP error w/o NIC error, so 699 * also abort scan here and set in_hw_restart, when we 700 * had a NIC error both were already done. 701 */ 702 iwl_mld_report_scan_aborted(mld); 703 mld->fw_status.in_hw_restart = true; 704 705 /* Do restart only in the following conditions are met: 706 * - we consider the FW as running 707 * - The trigger that brought us here is defined as one that requires 708 * a restart (in the debug TLVs) 709 */ 710 if (!mld->fw_status.running || !mld->fwrt.trans->dbg.restart_required) 711 return false; 712 713 iwl_mld_restart_nic(mld); 714 return true; 715 } 716 717 static void 718 iwl_mld_time_point(struct iwl_op_mode *op_mode, 719 enum iwl_fw_ini_time_point tp_id, 720 union iwl_dbg_tlv_tp_data *tp_data) 721 { 722 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 723 724 iwl_dbg_tlv_time_point(&mld->fwrt, tp_id, tp_data); 725 } 726 727 #ifdef CONFIG_PM_SLEEP 728 static void iwl_mld_device_powered_off(struct iwl_op_mode *op_mode) 729 { 730 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 731 732 wiphy_lock(mld->wiphy); 733 iwl_mld_stop_fw(mld); 734 mld->fw_status.in_d3 = false; 735 wiphy_unlock(mld->wiphy); 736 } 737 #else 738 static void iwl_mld_device_powered_off(struct iwl_op_mode *op_mode) 739 {} 740 #endif 741 742 static void iwl_mld_dump(struct iwl_op_mode *op_mode) 743 { 744 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode); 745 struct iwl_fw_runtime *fwrt = &mld->fwrt; 746 747 if (!iwl_trans_fw_running(fwrt->trans)) 748 return; 749 750 iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_USER_TRIGGER, NULL); 751 } 752 753 static const struct iwl_op_mode_ops iwl_mld_ops = { 754 .start = iwl_op_mode_mld_start, 755 .stop = iwl_op_mode_mld_stop, 756 .rx = iwl_mld_rx, 757 .rx_rss = iwl_mld_rx_rss, 758 .queue_full = iwl_mld_queue_full, 759 .queue_not_full = iwl_mld_queue_not_full, 760 .hw_rf_kill = iwl_mld_set_hw_rfkill_state, 761 .free_skb = iwl_mld_free_skb, 762 .nic_error = iwl_mld_nic_error, 763 .dump_error = iwl_mld_dump_error, 764 .sw_reset = iwl_mld_sw_reset, 765 .time_point = iwl_mld_time_point, 766 .device_powered_off = pm_sleep_ptr(iwl_mld_device_powered_off), 767 .dump = iwl_mld_dump, 768 }; 769 770 struct iwl_mld_mod_params iwlmld_mod_params = { 771 .power_scheme = IWL_POWER_SCHEME_BPS, 772 }; 773 774 module_param_named(power_scheme, iwlmld_mod_params.power_scheme, int, 0444); 775 MODULE_PARM_DESC(power_scheme, 776 "power management scheme: 1-active, 2-balanced, default: 2"); 777