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