1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/module.h> 8 #include <linux/rtnetlink.h> 9 #include <linux/vmalloc.h> 10 #include <net/mac80211.h> 11 12 #include "fw/notif-wait.h" 13 #include "iwl-trans.h" 14 #include "iwl-op-mode.h" 15 #include "fw/img.h" 16 #include "iwl-debug.h" 17 #include "iwl-drv.h" 18 #include "iwl-modparams.h" 19 #include "mvm.h" 20 #include "iwl-phy-db.h" 21 #include "iwl-eeprom-parse.h" 22 #include "iwl-csr.h" 23 #include "iwl-io.h" 24 #include "iwl-prph.h" 25 #include "rs.h" 26 #include "fw/api/scan.h" 27 #include "fw/api/rfi.h" 28 #include "time-event.h" 29 #include "fw-api.h" 30 #include "fw/acpi.h" 31 #include "fw/uefi.h" 32 #include "time-sync.h" 33 34 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 35 MODULE_DESCRIPTION(DRV_DESCRIPTION); 36 MODULE_LICENSE("GPL"); 37 MODULE_IMPORT_NS(IWLWIFI); 38 39 static const struct iwl_op_mode_ops iwl_mvm_ops; 40 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 41 42 struct iwl_mvm_mod_params iwlmvm_mod_params = { 43 .power_scheme = IWL_POWER_SCHEME_BPS, 44 /* rest of fields are 0 by default */ 45 }; 46 47 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 48 MODULE_PARM_DESC(init_dbg, 49 "set to true to debug an ASSERT in INIT fw (default: false"); 50 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 51 MODULE_PARM_DESC(power_scheme, 52 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 53 54 /* 55 * module init and exit functions 56 */ 57 static int __init iwl_mvm_init(void) 58 { 59 int ret; 60 61 ret = iwl_mvm_rate_control_register(); 62 if (ret) { 63 pr_err("Unable to register rate control algorithm: %d\n", ret); 64 return ret; 65 } 66 67 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 68 if (ret) 69 pr_err("Unable to register MVM op_mode: %d\n", ret); 70 71 return ret; 72 } 73 module_init(iwl_mvm_init); 74 75 static void __exit iwl_mvm_exit(void) 76 { 77 iwl_opmode_deregister("iwlmvm"); 78 iwl_mvm_rate_control_unregister(); 79 } 80 module_exit(iwl_mvm_exit); 81 82 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 83 { 84 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 85 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 86 u32 reg_val; 87 u32 phy_config = iwl_mvm_get_phy_config(mvm); 88 89 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 90 FW_PHY_CFG_RADIO_TYPE_POS; 91 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 92 FW_PHY_CFG_RADIO_STEP_POS; 93 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 94 FW_PHY_CFG_RADIO_DASH_POS; 95 96 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 97 radio_cfg_step, radio_cfg_dash); 98 99 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 100 return; 101 102 /* SKU control */ 103 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); 104 105 /* radio configuration */ 106 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 107 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 108 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 109 110 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 111 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 112 113 /* 114 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 115 * sampling, and shouldn't be set to any non-zero value. 116 * The same is supposed to be true of the other HW, but unsetting 117 * them (such as the 7260) causes automatic tests to fail on seemingly 118 * unrelated errors. Need to further investigate this, but for now 119 * we'll separate cases. 120 */ 121 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 122 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 123 124 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 125 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 126 127 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 128 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | 129 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 130 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 131 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 132 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 133 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 134 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 135 reg_val); 136 137 /* 138 * W/A : NIC is stuck in a reset state after Early PCIe power off 139 * (PCIe power is lost before PERST# is asserted), causing ME FW 140 * to lose ownership and not being able to obtain it back. 141 */ 142 if (!mvm->trans->cfg->apmg_not_supported) 143 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 144 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 145 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 146 } 147 148 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 149 struct iwl_rx_cmd_buffer *rxb) 150 { 151 struct iwl_rx_packet *pkt = rxb_addr(rxb); 152 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 153 struct ieee80211_supported_band *sband; 154 const struct ieee80211_sta_he_cap *he_cap; 155 struct ieee80211_vif *vif; 156 157 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 158 return; 159 160 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 161 if (!vif || vif->type != NL80211_IFTYPE_STATION) 162 return; 163 164 if (!vif->bss_conf.chandef.chan || 165 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 166 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 167 return; 168 169 if (!vif->cfg.assoc) 170 return; 171 172 /* this shouldn't happen *again*, ignore it */ 173 if (mvm->cca_40mhz_workaround) 174 return; 175 176 /* 177 * We'll decrement this on disconnect - so set to 2 since we'll 178 * still have to disconnect from the current AP first. 179 */ 180 mvm->cca_40mhz_workaround = 2; 181 182 /* 183 * This capability manipulation isn't really ideal, but it's the 184 * easiest choice - otherwise we'd have to do some major changes 185 * in mac80211 to support this, which isn't worth it. This does 186 * mean that userspace may have outdated information, but that's 187 * actually not an issue at all. 188 */ 189 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 190 191 WARN_ON(!sband->ht_cap.ht_supported); 192 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 193 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 194 195 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 196 197 if (he_cap) { 198 /* we know that ours is writable */ 199 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 200 201 WARN_ON(!he->has_he); 202 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 203 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 204 he->he_cap_elem.phy_cap_info[0] &= 205 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 206 } 207 208 ieee80211_disconnect(vif, true); 209 } 210 211 void iwl_mvm_update_link_smps(struct ieee80211_vif *vif, 212 struct ieee80211_bss_conf *link_conf) 213 { 214 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 215 struct iwl_mvm *mvm = mvmvif->mvm; 216 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 217 218 if (!link_conf) 219 return; 220 221 if (mvm->fw_static_smps_request && 222 link_conf->chandef.width == NL80211_CHAN_WIDTH_160 && 223 link_conf->he_support) 224 mode = IEEE80211_SMPS_STATIC; 225 226 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode, 227 link_conf->link_id); 228 } 229 230 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 231 struct ieee80211_vif *vif) 232 { 233 struct ieee80211_bss_conf *link_conf; 234 unsigned int link_id; 235 236 rcu_read_lock(); 237 238 for_each_vif_active_link(vif, link_conf, link_id) 239 iwl_mvm_update_link_smps(vif, link_conf); 240 241 rcu_read_unlock(); 242 } 243 244 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 245 struct iwl_rx_cmd_buffer *rxb) 246 { 247 struct iwl_rx_packet *pkt = rxb_addr(rxb); 248 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 249 250 /* 251 * We could pass it to the iterator data, but also need to remember 252 * it for new interfaces that are added while in this state. 253 */ 254 mvm->fw_static_smps_request = 255 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 256 ieee80211_iterate_interfaces(mvm->hw, 257 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, 258 iwl_mvm_intf_dual_chain_req, NULL); 259 } 260 261 /** 262 * enum iwl_rx_handler_context context for Rx handler 263 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 264 * which can't acquire mvm->mutex. 265 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 266 * (and only in this case!), it should be set as ASYNC. In that case, 267 * it will be called from a worker with mvm->mutex held. 268 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 269 * mutex itself, it will be called from a worker without mvm->mutex held. 270 */ 271 enum iwl_rx_handler_context { 272 RX_HANDLER_SYNC, 273 RX_HANDLER_ASYNC_LOCKED, 274 RX_HANDLER_ASYNC_UNLOCKED, 275 }; 276 277 /** 278 * struct iwl_rx_handlers handler for FW notification 279 * @cmd_id: command id 280 * @min_size: minimum size to expect for the notification 281 * @context: see &iwl_rx_handler_context 282 * @fn: the function is called when notification is received 283 */ 284 struct iwl_rx_handlers { 285 u16 cmd_id, min_size; 286 enum iwl_rx_handler_context context; 287 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 288 }; 289 290 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 291 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 292 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 293 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 294 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 295 { .cmd_id = _cmd_id, .fn = _fn, \ 296 .context = _context, .min_size = sizeof(_struct), } 297 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 298 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 299 .context = _context, .min_size = sizeof(_struct), } 300 301 /* 302 * Handlers for fw notifications 303 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 304 * This list should be in order of frequency for performance purposes. 305 * 306 * The handler can be one from three contexts, see &iwl_rx_handler_context 307 */ 308 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 309 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 310 struct iwl_mvm_tx_resp), 311 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 312 struct iwl_mvm_ba_notif), 313 314 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 315 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 316 struct iwl_tlc_update_notif), 317 318 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 319 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 320 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 321 RX_HANDLER_ASYNC_LOCKED), 322 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 323 RX_HANDLER_ASYNC_LOCKED), 324 325 RX_HANDLER_GRP(STATISTICS_GROUP, STATISTICS_OPER_NOTIF, 326 iwl_mvm_handle_rx_system_oper_stats, 327 RX_HANDLER_ASYNC_LOCKED, 328 struct iwl_system_statistics_notif_oper), 329 RX_HANDLER_GRP(STATISTICS_GROUP, STATISTICS_OPER_PART1_NOTIF, 330 iwl_mvm_handle_rx_system_oper_part1_stats, 331 RX_HANDLER_ASYNC_LOCKED, 332 struct iwl_system_statistics_part1_notif_oper), 333 RX_HANDLER_GRP(SYSTEM_GROUP, SYSTEM_STATISTICS_END_NOTIF, 334 iwl_mvm_handle_rx_system_end_stats_notif, 335 RX_HANDLER_ASYNC_LOCKED, 336 struct iwl_system_statistics_end_notif), 337 338 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 339 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 340 struct iwl_ba_window_status_notif), 341 342 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 343 RX_HANDLER_SYNC, struct iwl_time_event_notif), 344 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 345 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 346 struct iwl_mvm_session_prot_notif), 347 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 348 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 349 350 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 351 struct iwl_mvm_eosp_notification), 352 353 RX_HANDLER(SCAN_ITERATION_COMPLETE, 354 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 355 struct iwl_lmac_scan_complete_notif), 356 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 357 iwl_mvm_rx_lmac_scan_complete_notif, 358 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 359 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 360 iwl_mvm_rx_scan_match_found, 361 RX_HANDLER_SYNC), 362 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 363 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 364 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 365 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 366 struct iwl_umac_scan_iter_complete_notif), 367 368 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 369 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 370 371 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 372 struct iwl_error_resp), 373 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 374 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 375 struct iwl_uapsd_misbehaving_ap_notif), 376 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 377 RX_HANDLER_ASYNC_LOCKED), 378 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 379 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 380 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 381 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 382 struct ct_kill_notif), 383 384 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 385 RX_HANDLER_ASYNC_LOCKED, 386 struct iwl_tdls_channel_switch_notif), 387 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 388 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 389 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 390 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 391 struct iwl_ftm_responder_stats), 392 393 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 394 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 395 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 396 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 397 398 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 399 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 400 struct iwl_mfu_assert_dump_notif), 401 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 402 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 403 struct iwl_stored_beacon_notif_v2), 404 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 405 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 406 struct iwl_mu_group_mgmt_notif), 407 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 408 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 409 struct iwl_mvm_pm_state_notification), 410 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 411 iwl_mvm_probe_resp_data_notif, 412 RX_HANDLER_ASYNC_LOCKED, 413 struct iwl_probe_resp_data_notif), 414 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 415 iwl_mvm_channel_switch_start_notif, 416 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 417 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, 418 iwl_mvm_channel_switch_error_notif, 419 RX_HANDLER_ASYNC_UNLOCKED, 420 struct iwl_channel_switch_error_notif), 421 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 422 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 423 struct iwl_datapath_monitor_notif), 424 425 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 426 iwl_mvm_rx_thermal_dual_chain_req, 427 RX_HANDLER_ASYNC_LOCKED, 428 struct iwl_thermal_dual_chain_request), 429 430 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, 431 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, 432 struct iwl_rfi_deactivate_notif), 433 434 RX_HANDLER_GRP(LEGACY_GROUP, 435 WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION, 436 iwl_mvm_time_sync_msmt_event, RX_HANDLER_SYNC, 437 struct iwl_time_msmt_notify), 438 RX_HANDLER_GRP(LEGACY_GROUP, 439 WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION, 440 iwl_mvm_time_sync_msmt_confirm_event, RX_HANDLER_SYNC, 441 struct iwl_time_msmt_cfm_notify), 442 RX_HANDLER_GRP(MAC_CONF_GROUP, ROC_NOTIF, 443 iwl_mvm_rx_roc_notif, RX_HANDLER_SYNC, 444 struct iwl_roc_notif), 445 }; 446 #undef RX_HANDLER 447 #undef RX_HANDLER_GRP 448 449 /* Please keep this array *SORTED* by hex value. 450 * Access is done through binary search 451 */ 452 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 453 HCMD_NAME(UCODE_ALIVE_NTFY), 454 HCMD_NAME(REPLY_ERROR), 455 HCMD_NAME(ECHO_CMD), 456 HCMD_NAME(INIT_COMPLETE_NOTIF), 457 HCMD_NAME(PHY_CONTEXT_CMD), 458 HCMD_NAME(DBG_CFG), 459 HCMD_NAME(SCAN_CFG_CMD), 460 HCMD_NAME(SCAN_REQ_UMAC), 461 HCMD_NAME(SCAN_ABORT_UMAC), 462 HCMD_NAME(SCAN_COMPLETE_UMAC), 463 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 464 HCMD_NAME(ADD_STA_KEY), 465 HCMD_NAME(ADD_STA), 466 HCMD_NAME(REMOVE_STA), 467 HCMD_NAME(TX_CMD), 468 HCMD_NAME(SCD_QUEUE_CFG), 469 HCMD_NAME(TXPATH_FLUSH), 470 HCMD_NAME(MGMT_MCAST_KEY), 471 HCMD_NAME(WEP_KEY), 472 HCMD_NAME(SHARED_MEM_CFG), 473 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 474 HCMD_NAME(MAC_CONTEXT_CMD), 475 HCMD_NAME(TIME_EVENT_CMD), 476 HCMD_NAME(TIME_EVENT_NOTIFICATION), 477 HCMD_NAME(BINDING_CONTEXT_CMD), 478 HCMD_NAME(TIME_QUOTA_CMD), 479 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 480 HCMD_NAME(LEDS_CMD), 481 HCMD_NAME(LQ_CMD), 482 HCMD_NAME(FW_PAGING_BLOCK_CMD), 483 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 484 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 485 HCMD_NAME(HOT_SPOT_CMD), 486 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 487 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 488 HCMD_NAME(BT_COEX_CI), 489 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION), 490 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION), 491 HCMD_NAME(PHY_CONFIGURATION_CMD), 492 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 493 HCMD_NAME(PHY_DB_CMD), 494 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 495 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 496 HCMD_NAME(POWER_TABLE_CMD), 497 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 498 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 499 HCMD_NAME(NVM_ACCESS_CMD), 500 HCMD_NAME(BEACON_NOTIFICATION), 501 HCMD_NAME(BEACON_TEMPLATE_CMD), 502 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 503 HCMD_NAME(BT_CONFIG), 504 HCMD_NAME(STATISTICS_CMD), 505 HCMD_NAME(STATISTICS_NOTIFICATION), 506 HCMD_NAME(EOSP_NOTIFICATION), 507 HCMD_NAME(REDUCE_TX_POWER_CMD), 508 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 509 HCMD_NAME(TDLS_CONFIG_CMD), 510 HCMD_NAME(MAC_PM_POWER_TABLE), 511 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 512 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 513 HCMD_NAME(RSS_CONFIG_CMD), 514 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 515 HCMD_NAME(REPLY_RX_PHY_CMD), 516 HCMD_NAME(REPLY_RX_MPDU_CMD), 517 HCMD_NAME(BAR_FRAME_RELEASE), 518 HCMD_NAME(FRAME_RELEASE), 519 HCMD_NAME(BA_NOTIF), 520 HCMD_NAME(MCC_UPDATE_CMD), 521 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 522 HCMD_NAME(MARKER_CMD), 523 HCMD_NAME(BT_PROFILE_NOTIFICATION), 524 HCMD_NAME(MCAST_FILTER_CMD), 525 HCMD_NAME(REPLY_SF_CFG_CMD), 526 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 527 HCMD_NAME(D3_CONFIG_CMD), 528 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 529 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 530 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 531 HCMD_NAME(WOWLAN_PATTERNS), 532 HCMD_NAME(WOWLAN_CONFIGURATION), 533 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 534 HCMD_NAME(WOWLAN_TKIP_PARAM), 535 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 536 HCMD_NAME(WOWLAN_GET_STATUSES), 537 HCMD_NAME(SCAN_ITERATION_COMPLETE), 538 HCMD_NAME(D0I3_END_CMD), 539 HCMD_NAME(LTR_CONFIG), 540 HCMD_NAME(LDBG_CONFIG_CMD), 541 }; 542 543 /* Please keep this array *SORTED* by hex value. 544 * Access is done through binary search 545 */ 546 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 547 HCMD_NAME(SHARED_MEM_CFG_CMD), 548 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 549 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 550 HCMD_NAME(RFI_CONFIG_CMD), 551 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 552 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 553 HCMD_NAME(SYSTEM_STATISTICS_CMD), 554 HCMD_NAME(SYSTEM_STATISTICS_END_NOTIF), 555 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 556 }; 557 558 /* Please keep this array *SORTED* by hex value. 559 * Access is done through binary search 560 */ 561 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 562 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 563 HCMD_NAME(SESSION_PROTECTION_CMD), 564 HCMD_NAME(MAC_CONFIG_CMD), 565 HCMD_NAME(LINK_CONFIG_CMD), 566 HCMD_NAME(STA_CONFIG_CMD), 567 HCMD_NAME(AUX_STA_CMD), 568 HCMD_NAME(STA_REMOVE_CMD), 569 HCMD_NAME(STA_DISABLE_TX_CMD), 570 HCMD_NAME(ROC_CMD), 571 HCMD_NAME(ROC_NOTIF), 572 HCMD_NAME(SESSION_PROTECTION_NOTIF), 573 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 574 }; 575 576 /* Please keep this array *SORTED* by hex value. 577 * Access is done through binary search 578 */ 579 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 580 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 581 HCMD_NAME(CTDP_CONFIG_CMD), 582 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 583 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 584 HCMD_NAME(CT_KILL_NOTIFICATION), 585 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 586 }; 587 588 /* Please keep this array *SORTED* by hex value. 589 * Access is done through binary search 590 */ 591 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 592 HCMD_NAME(DQA_ENABLE_CMD), 593 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 594 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 595 HCMD_NAME(STA_HE_CTXT_CMD), 596 HCMD_NAME(RLC_CONFIG_CMD), 597 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 598 HCMD_NAME(TLC_MNG_CONFIG_CMD), 599 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 600 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 601 HCMD_NAME(SEC_KEY_CMD), 602 HCMD_NAME(MONITOR_NOTIF), 603 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 604 HCMD_NAME(STA_PM_NOTIF), 605 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 606 HCMD_NAME(RX_QUEUES_NOTIFICATION), 607 }; 608 609 /* Please keep this array *SORTED* by hex value. 610 * Access is done through binary search 611 */ 612 static const struct iwl_hcmd_names iwl_mvm_statistics_names[] = { 613 HCMD_NAME(STATISTICS_OPER_NOTIF), 614 HCMD_NAME(STATISTICS_OPER_PART1_NOTIF), 615 }; 616 617 /* Please keep this array *SORTED* by hex value. 618 * Access is done through binary search 619 */ 620 static const struct iwl_hcmd_names iwl_mvm_scan_names[] = { 621 HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF), 622 }; 623 624 /* Please keep this array *SORTED* by hex value. 625 * Access is done through binary search 626 */ 627 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 628 HCMD_NAME(TOF_RANGE_REQ_CMD), 629 HCMD_NAME(TOF_CONFIG_CMD), 630 HCMD_NAME(TOF_RANGE_ABORT_CMD), 631 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 632 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 633 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 634 HCMD_NAME(TOF_LC_NOTIF), 635 HCMD_NAME(TOF_RESPONDER_STATS), 636 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 637 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 638 }; 639 640 /* Please keep this array *SORTED* by hex value. 641 * Access is done through binary search 642 */ 643 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 644 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), 645 HCMD_NAME(WOWLAN_INFO_NOTIFICATION), 646 HCMD_NAME(D3_END_NOTIFICATION), 647 HCMD_NAME(STORED_BEACON_NTF), 648 }; 649 650 /* Please keep this array *SORTED* by hex value. 651 * Access is done through binary search 652 */ 653 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 654 HCMD_NAME(NVM_ACCESS_COMPLETE), 655 HCMD_NAME(NVM_GET_INFO), 656 HCMD_NAME(TAS_CONFIG), 657 }; 658 659 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 660 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 661 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 662 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 663 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 664 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 665 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 666 [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names), 667 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 668 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 669 [REGULATORY_AND_NVM_GROUP] = 670 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 671 [STATISTICS_GROUP] = HCMD_ARR(iwl_mvm_statistics_names), 672 }; 673 674 /* this forward declaration can avoid to export the function */ 675 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 676 677 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 678 { 679 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 680 u64 dflt_pwr_limit; 681 682 if (!backoff) 683 return 0; 684 685 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 686 687 while (backoff->pwr) { 688 if (dflt_pwr_limit >= backoff->pwr) 689 return backoff->backoff; 690 691 backoff++; 692 } 693 694 return 0; 695 } 696 697 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 698 { 699 struct iwl_mvm *mvm = 700 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 701 struct ieee80211_vif *tx_blocked_vif; 702 struct iwl_mvm_vif *mvmvif; 703 704 mutex_lock(&mvm->mutex); 705 706 tx_blocked_vif = 707 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 708 lockdep_is_held(&mvm->mutex)); 709 710 if (!tx_blocked_vif) 711 goto unlock; 712 713 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 714 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 715 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 716 unlock: 717 mutex_unlock(&mvm->mutex); 718 } 719 720 static void iwl_mvm_fwrt_dump_start(void *ctx) 721 { 722 struct iwl_mvm *mvm = ctx; 723 724 mutex_lock(&mvm->mutex); 725 } 726 727 static void iwl_mvm_fwrt_dump_end(void *ctx) 728 { 729 struct iwl_mvm *mvm = ctx; 730 731 mutex_unlock(&mvm->mutex); 732 } 733 734 static bool iwl_mvm_fwrt_fw_running(void *ctx) 735 { 736 return iwl_mvm_firmware_running(ctx); 737 } 738 739 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 740 { 741 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 742 int ret; 743 744 mutex_lock(&mvm->mutex); 745 ret = iwl_mvm_send_cmd(mvm, host_cmd); 746 mutex_unlock(&mvm->mutex); 747 748 return ret; 749 } 750 751 static bool iwl_mvm_d3_debug_enable(void *ctx) 752 { 753 return IWL_MVM_D3_DEBUG; 754 } 755 756 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 757 .dump_start = iwl_mvm_fwrt_dump_start, 758 .dump_end = iwl_mvm_fwrt_dump_end, 759 .fw_running = iwl_mvm_fwrt_fw_running, 760 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 761 .d3_debug_enable = iwl_mvm_d3_debug_enable, 762 }; 763 764 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 765 { 766 struct iwl_trans *trans = mvm->trans; 767 int ret; 768 769 if (trans->csme_own) { 770 if (WARN(!mvm->mei_registered, 771 "csme is owner, but we aren't registered to iwlmei\n")) 772 goto get_nvm_from_fw; 773 774 mvm->mei_nvm_data = iwl_mei_get_nvm(); 775 if (mvm->mei_nvm_data) { 776 /* 777 * mvm->mei_nvm_data is set and because of that, 778 * we'll load the NVM from the FW when we'll get 779 * ownership. 780 */ 781 mvm->nvm_data = 782 iwl_parse_mei_nvm_data(trans, trans->cfg, 783 mvm->mei_nvm_data, 784 mvm->fw, 785 mvm->set_tx_ant, 786 mvm->set_rx_ant); 787 return 0; 788 } 789 790 IWL_ERR(mvm, 791 "Got a NULL NVM from CSME, trying to get it from the device\n"); 792 } 793 794 get_nvm_from_fw: 795 rtnl_lock(); 796 wiphy_lock(mvm->hw->wiphy); 797 mutex_lock(&mvm->mutex); 798 799 ret = iwl_trans_start_hw(mvm->trans); 800 if (ret) { 801 mutex_unlock(&mvm->mutex); 802 wiphy_unlock(mvm->hw->wiphy); 803 rtnl_unlock(); 804 return ret; 805 } 806 807 ret = iwl_run_init_mvm_ucode(mvm); 808 if (ret && ret != -ERFKILL) 809 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 810 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 811 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 812 ret = iwl_mvm_init_mcc(mvm); 813 } 814 815 if (!iwlmvm_mod_params.init_dbg || !ret) 816 iwl_mvm_stop_device(mvm); 817 818 mutex_unlock(&mvm->mutex); 819 wiphy_unlock(mvm->hw->wiphy); 820 rtnl_unlock(); 821 822 if (ret) 823 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 824 825 /* no longer need this regardless of failure or not */ 826 mvm->pldr_sync = false; 827 828 return ret; 829 } 830 831 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 832 { 833 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 834 int ret; 835 836 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 837 838 ret = iwl_mvm_mac_setup_register(mvm); 839 if (ret) 840 return ret; 841 842 mvm->hw_registered = true; 843 844 iwl_mvm_dbgfs_register(mvm); 845 846 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 847 mvm->mei_rfkill_blocked, 848 RFKILL_HARD_BLOCK_NOT_OWNER); 849 850 iwl_mvm_mei_set_sw_rfkill_state(mvm); 851 852 return 0; 853 } 854 855 struct iwl_mvm_frob_txf_data { 856 u8 *buf; 857 size_t buflen; 858 }; 859 860 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 861 struct ieee80211_vif *vif, 862 struct ieee80211_sta *sta, 863 struct ieee80211_key_conf *key, 864 void *data) 865 { 866 struct iwl_mvm_frob_txf_data *txf = data; 867 u8 keylen, match, matchend; 868 u8 *keydata; 869 size_t i; 870 871 switch (key->cipher) { 872 case WLAN_CIPHER_SUITE_CCMP: 873 keydata = key->key; 874 keylen = key->keylen; 875 break; 876 case WLAN_CIPHER_SUITE_WEP40: 877 case WLAN_CIPHER_SUITE_WEP104: 878 case WLAN_CIPHER_SUITE_TKIP: 879 /* 880 * WEP has short keys which might show up in the payload, 881 * and then you can deduce the key, so in this case just 882 * remove all FIFO data. 883 * For TKIP, we don't know the phase 2 keys here, so same. 884 */ 885 memset(txf->buf, 0xBB, txf->buflen); 886 return; 887 default: 888 return; 889 } 890 891 /* scan for key material and clear it out */ 892 match = 0; 893 for (i = 0; i < txf->buflen; i++) { 894 if (txf->buf[i] != keydata[match]) { 895 match = 0; 896 continue; 897 } 898 match++; 899 if (match == keylen) { 900 memset(txf->buf + i - keylen, 0xAA, keylen); 901 match = 0; 902 } 903 } 904 905 /* we're dealing with a FIFO, so check wrapped around data */ 906 matchend = match; 907 for (i = 0; match && i < keylen - match; i++) { 908 if (txf->buf[i] != keydata[match]) 909 break; 910 match++; 911 if (match == keylen) { 912 memset(txf->buf, 0xAA, i + 1); 913 memset(txf->buf + txf->buflen - matchend, 0xAA, 914 matchend); 915 break; 916 } 917 } 918 } 919 920 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 921 { 922 struct iwl_mvm_frob_txf_data txf = { 923 .buf = buf, 924 .buflen = buflen, 925 }; 926 struct iwl_mvm *mvm = ctx; 927 928 /* embedded key material exists only on old API */ 929 if (iwl_mvm_has_new_tx_api(mvm)) 930 return; 931 932 rcu_read_lock(); 933 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 934 rcu_read_unlock(); 935 } 936 937 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 938 { 939 /* we only use wide headers for commands */ 940 struct iwl_cmd_header_wide *hdr = hcmd; 941 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 942 943 if (len < sizeof(hdr)) 944 return; 945 946 /* all the commands we care about are in LONG_GROUP */ 947 if (hdr->group_id != LONG_GROUP) 948 return; 949 950 switch (hdr->cmd) { 951 case WEP_KEY: 952 case WOWLAN_TKIP_PARAM: 953 case WOWLAN_KEK_KCK_MATERIAL: 954 case ADD_STA_KEY: 955 /* 956 * blank out everything here, easier than dealing 957 * with the various versions of the command 958 */ 959 frob_end = INT_MAX; 960 break; 961 case MGMT_MCAST_KEY: 962 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 963 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 964 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 965 966 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 967 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 968 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 969 break; 970 } 971 972 if (frob_start >= frob_end) 973 return; 974 975 if (frob_end > len) 976 frob_end = len; 977 978 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 979 } 980 981 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 982 { 983 const struct iwl_dump_exclude *excl; 984 struct iwl_mvm *mvm = ctx; 985 int i; 986 987 switch (mvm->fwrt.cur_fw_img) { 988 case IWL_UCODE_INIT: 989 default: 990 /* not relevant */ 991 return; 992 case IWL_UCODE_REGULAR: 993 case IWL_UCODE_REGULAR_USNIFFER: 994 excl = mvm->fw->dump_excl; 995 break; 996 case IWL_UCODE_WOWLAN: 997 excl = mvm->fw->dump_excl_wowlan; 998 break; 999 } 1000 1001 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 1002 sizeof(mvm->fw->dump_excl_wowlan)); 1003 1004 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 1005 u32 start, end; 1006 1007 if (!excl[i].addr || !excl[i].size) 1008 continue; 1009 1010 start = excl[i].addr; 1011 end = start + excl[i].size; 1012 1013 if (end <= mem_addr || start >= mem_addr + buflen) 1014 continue; 1015 1016 if (start < mem_addr) 1017 start = mem_addr; 1018 1019 if (end > mem_addr + buflen) 1020 end = mem_addr + buflen; 1021 1022 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 1023 } 1024 } 1025 1026 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 1027 .frob_txf = iwl_mvm_frob_txf, 1028 .frob_hcmd = iwl_mvm_frob_hcmd, 1029 .frob_mem = iwl_mvm_frob_mem, 1030 }; 1031 1032 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 1033 { 1034 struct iwl_mvm *mvm = priv; 1035 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 1036 1037 /* 1038 * This is protected by the guarantee that this function will not be 1039 * called twice on two different threads 1040 */ 1041 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 1042 1043 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 1044 if (!curr_conn_info) 1045 return; 1046 1047 curr_conn_info->conn_info = *conn_info; 1048 1049 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 1050 1051 if (prev_conn_info) 1052 kfree_rcu(prev_conn_info, rcu_head); 1053 } 1054 1055 static void iwl_mvm_mei_rfkill(void *priv, bool blocked, 1056 bool csme_taking_ownership) 1057 { 1058 struct iwl_mvm *mvm = priv; 1059 1060 if (blocked && !csme_taking_ownership) 1061 return; 1062 1063 mvm->mei_rfkill_blocked = blocked; 1064 if (!mvm->hw_registered) 1065 return; 1066 1067 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 1068 mvm->mei_rfkill_blocked, 1069 RFKILL_HARD_BLOCK_NOT_OWNER); 1070 } 1071 1072 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 1073 { 1074 struct iwl_mvm *mvm = priv; 1075 1076 if (!mvm->hw_registered || !mvm->csme_vif) 1077 return; 1078 1079 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 1080 } 1081 1082 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1083 { 1084 struct iwl_mvm *mvm = 1085 container_of(wk, struct iwl_mvm, sap_connected_wk); 1086 int ret; 1087 1088 ret = iwl_mvm_start_get_nvm(mvm); 1089 if (ret) 1090 goto out_free; 1091 1092 ret = iwl_mvm_start_post_nvm(mvm); 1093 if (ret) 1094 goto out_free; 1095 1096 return; 1097 1098 out_free: 1099 IWL_ERR(mvm, "Couldn't get started...\n"); 1100 iwl_mei_start_unregister(); 1101 iwl_mei_unregister_complete(); 1102 iwl_fw_flush_dumps(&mvm->fwrt); 1103 iwl_mvm_thermal_exit(mvm); 1104 iwl_fw_runtime_free(&mvm->fwrt); 1105 iwl_phy_db_free(mvm->phy_db); 1106 kfree(mvm->scan_cmd); 1107 iwl_trans_op_mode_leave(mvm->trans); 1108 kfree(mvm->nvm_data); 1109 kfree(mvm->mei_nvm_data); 1110 1111 ieee80211_free_hw(mvm->hw); 1112 } 1113 1114 static void iwl_mvm_mei_sap_connected(void *priv) 1115 { 1116 struct iwl_mvm *mvm = priv; 1117 1118 if (!mvm->hw_registered) 1119 schedule_work(&mvm->sap_connected_wk); 1120 } 1121 1122 static void iwl_mvm_mei_nic_stolen(void *priv) 1123 { 1124 struct iwl_mvm *mvm = priv; 1125 1126 rtnl_lock(); 1127 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1128 rtnl_unlock(); 1129 } 1130 1131 static const struct iwl_mei_ops mei_ops = { 1132 .me_conn_status = iwl_mvm_me_conn_status, 1133 .rfkill = iwl_mvm_mei_rfkill, 1134 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1135 .sap_connected = iwl_mvm_mei_sap_connected, 1136 .nic_stolen = iwl_mvm_mei_nic_stolen, 1137 }; 1138 1139 static struct iwl_op_mode * 1140 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1141 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1142 { 1143 struct ieee80211_hw *hw; 1144 struct iwl_op_mode *op_mode; 1145 struct iwl_mvm *mvm; 1146 struct iwl_trans_config trans_cfg = {}; 1147 static const u8 no_reclaim_cmds[] = { 1148 TX_CMD, 1149 }; 1150 u32 max_agg; 1151 size_t scan_size; 1152 u32 min_backoff; 1153 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1154 1155 /* 1156 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1157 * index all over the driver - check that its value corresponds to the 1158 * array size. 1159 */ 1160 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1161 IWL_MVM_STATION_COUNT_MAX); 1162 1163 /******************************** 1164 * 1. Allocating and configuring HW data 1165 ********************************/ 1166 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1167 sizeof(struct iwl_mvm), 1168 iwl_mvm_has_mld_api(fw) ? &iwl_mvm_mld_hw_ops : 1169 &iwl_mvm_hw_ops); 1170 if (!hw) 1171 return NULL; 1172 1173 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 1174 max_agg = 512; 1175 else 1176 max_agg = IEEE80211_MAX_AMPDU_BUF_HE; 1177 1178 hw->max_rx_aggregation_subframes = max_agg; 1179 1180 if (cfg->max_tx_agg_size) 1181 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1182 else 1183 hw->max_tx_aggregation_subframes = max_agg; 1184 1185 op_mode = hw->priv; 1186 1187 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1188 mvm->dev = trans->dev; 1189 mvm->trans = trans; 1190 mvm->cfg = cfg; 1191 mvm->fw = fw; 1192 mvm->hw = hw; 1193 1194 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1195 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1196 1197 iwl_mvm_get_acpi_tables(mvm); 1198 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1199 iwl_uefi_get_step_table(trans); 1200 1201 mvm->init_status = 0; 1202 1203 if (iwl_mvm_has_new_rx_api(mvm)) { 1204 op_mode->ops = &iwl_mvm_ops_mq; 1205 trans->rx_mpdu_cmd_hdr_size = 1206 (trans->trans_cfg->device_family >= 1207 IWL_DEVICE_FAMILY_AX210) ? 1208 sizeof(struct iwl_rx_mpdu_desc) : 1209 IWL_RX_DESC_SIZE_V1; 1210 } else { 1211 op_mode->ops = &iwl_mvm_ops; 1212 trans->rx_mpdu_cmd_hdr_size = 1213 sizeof(struct iwl_rx_mpdu_res_start); 1214 1215 if (WARN_ON(trans->num_rx_queues > 1)) 1216 goto out_free; 1217 } 1218 1219 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1220 1221 if (iwl_mvm_has_new_tx_api(mvm)) { 1222 /* 1223 * If we have the new TX/queue allocation API initialize them 1224 * all to invalid numbers. We'll rewrite the ones that we need 1225 * later, but that doesn't happen for all of them all of the 1226 * time (e.g. P2P Device is optional), and if a dynamic queue 1227 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1228 * iwl_mvm_is_static_queue() erroneously returns true, and we 1229 * might have things getting stuck. 1230 */ 1231 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1232 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1233 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1234 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1235 } else { 1236 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1237 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1238 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1239 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1240 } 1241 1242 mvm->sf_state = SF_UNINIT; 1243 if (iwl_mvm_has_unified_ucode(mvm)) 1244 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1245 else 1246 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1247 mvm->drop_bcn_ap_mode = true; 1248 1249 mutex_init(&mvm->mutex); 1250 spin_lock_init(&mvm->async_handlers_lock); 1251 INIT_LIST_HEAD(&mvm->time_event_list); 1252 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1253 INIT_LIST_HEAD(&mvm->async_handlers_list); 1254 spin_lock_init(&mvm->time_event_lock); 1255 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1256 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1257 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1258 1259 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1260 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1261 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1262 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1263 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1264 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1265 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1266 spin_lock_init(&mvm->add_stream_lock); 1267 1268 init_waitqueue_head(&mvm->rx_sync_waitq); 1269 1270 mvm->queue_sync_state = 0; 1271 1272 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1273 1274 spin_lock_init(&mvm->tcm.lock); 1275 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1276 mvm->tcm.ts = jiffies; 1277 mvm->tcm.ll_ts = jiffies; 1278 mvm->tcm.uapsd_nonagg_ts = jiffies; 1279 1280 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1281 1282 mvm->cmd_ver.range_resp = 1283 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1284 TOF_RANGE_RESPONSE_NOTIF, 5); 1285 /* we only support up to version 9 */ 1286 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1287 goto out_free; 1288 1289 /* 1290 * Populate the state variables that the transport layer needs 1291 * to know about. 1292 */ 1293 trans_cfg.op_mode = op_mode; 1294 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1295 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1296 1297 switch (iwlwifi_mod_params.amsdu_size) { 1298 case IWL_AMSDU_DEF: 1299 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1300 break; 1301 case IWL_AMSDU_4K: 1302 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1303 break; 1304 case IWL_AMSDU_8K: 1305 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1306 break; 1307 case IWL_AMSDU_12K: 1308 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1309 break; 1310 default: 1311 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1312 iwlwifi_mod_params.amsdu_size); 1313 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1314 } 1315 1316 trans->wide_cmd_header = true; 1317 trans_cfg.bc_table_dword = 1318 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1319 1320 trans_cfg.command_groups = iwl_mvm_groups; 1321 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1322 1323 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1324 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1325 trans_cfg.scd_set_active = true; 1326 1327 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1328 driver_data[2]); 1329 1330 /* Set a short watchdog for the command queue */ 1331 trans_cfg.cmd_q_wdg_timeout = 1332 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1333 1334 snprintf(mvm->hw->wiphy->fw_version, 1335 sizeof(mvm->hw->wiphy->fw_version), 1336 "%.31s", fw->fw_version); 1337 1338 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1339 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1340 1341 trans_cfg.queue_alloc_cmd_ver = 1342 iwl_fw_lookup_cmd_ver(mvm->fw, 1343 WIDE_ID(DATA_PATH_GROUP, 1344 SCD_QUEUE_CONFIG_CMD), 1345 0); 1346 mvm->sta_remove_requires_queue_remove = 1347 trans_cfg.queue_alloc_cmd_ver > 0; 1348 1349 mvm->mld_api_is_used = iwl_mvm_has_mld_api(mvm->fw); 1350 1351 /* Configure transport layer */ 1352 iwl_trans_configure(mvm->trans, &trans_cfg); 1353 1354 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1355 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1356 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1357 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1358 sizeof(trans->dbg.conf_tlv)); 1359 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1360 1361 trans->iml = mvm->fw->iml; 1362 trans->iml_len = mvm->fw->iml_len; 1363 1364 /* set up notification wait support */ 1365 iwl_notification_wait_init(&mvm->notif_wait); 1366 1367 /* Init phy db */ 1368 mvm->phy_db = iwl_phy_db_init(trans); 1369 if (!mvm->phy_db) { 1370 IWL_ERR(mvm, "Cannot init phy_db\n"); 1371 goto out_free; 1372 } 1373 1374 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1375 mvm->trans->name, mvm->trans->hw_rev); 1376 1377 if (iwlwifi_mod_params.nvm_file) 1378 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1379 else 1380 IWL_DEBUG_EEPROM(mvm->trans->dev, 1381 "working without external nvm file\n"); 1382 1383 scan_size = iwl_mvm_scan_size(mvm); 1384 1385 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1386 if (!mvm->scan_cmd) 1387 goto out_free; 1388 mvm->scan_cmd_size = scan_size; 1389 1390 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1391 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1392 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1393 1394 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1395 mvm->last_ebs_successful = true; 1396 1397 min_backoff = iwl_mvm_min_backoff(mvm); 1398 iwl_mvm_thermal_initialize(mvm, min_backoff); 1399 1400 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1401 memset(&mvm->rx_stats_v3, 0, 1402 sizeof(struct mvm_statistics_rx_v3)); 1403 else 1404 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1405 1406 iwl_mvm_ftm_initiator_smooth_config(mvm); 1407 1408 iwl_mvm_init_time_sync(&mvm->time_sync); 1409 1410 mvm->debugfs_dir = dbgfs_dir; 1411 1412 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1413 1414 iwl_mvm_mei_scan_filter_init(&mvm->mei_scan_filter); 1415 1416 if (iwl_mvm_start_get_nvm(mvm)) { 1417 /* 1418 * Getting NVM failed while CSME is the owner, but we are 1419 * registered to MEI, we'll get the NVM later when it'll be 1420 * possible to get it from CSME. 1421 */ 1422 if (trans->csme_own && mvm->mei_registered) 1423 return op_mode; 1424 1425 goto out_thermal_exit; 1426 } 1427 1428 1429 if (iwl_mvm_start_post_nvm(mvm)) 1430 goto out_thermal_exit; 1431 1432 return op_mode; 1433 1434 out_thermal_exit: 1435 iwl_mvm_thermal_exit(mvm); 1436 if (mvm->mei_registered) { 1437 iwl_mei_start_unregister(); 1438 iwl_mei_unregister_complete(); 1439 } 1440 out_free: 1441 iwl_fw_flush_dumps(&mvm->fwrt); 1442 iwl_fw_runtime_free(&mvm->fwrt); 1443 1444 if (iwlmvm_mod_params.init_dbg) 1445 return op_mode; 1446 iwl_phy_db_free(mvm->phy_db); 1447 kfree(mvm->scan_cmd); 1448 iwl_trans_op_mode_leave(trans); 1449 1450 ieee80211_free_hw(mvm->hw); 1451 return NULL; 1452 } 1453 1454 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1455 { 1456 lockdep_assert_held(&mvm->mutex); 1457 1458 iwl_fw_cancel_timestamp(&mvm->fwrt); 1459 1460 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1461 1462 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1463 iwl_trans_stop_device(mvm->trans); 1464 iwl_free_fw_paging(&mvm->fwrt); 1465 iwl_fw_dump_conf_clear(&mvm->fwrt); 1466 iwl_mvm_mei_device_state(mvm, false); 1467 } 1468 1469 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1470 { 1471 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1472 int i; 1473 1474 if (mvm->mei_registered) { 1475 rtnl_lock(); 1476 iwl_mei_set_netdev(NULL); 1477 rtnl_unlock(); 1478 iwl_mei_start_unregister(); 1479 } 1480 1481 /* 1482 * After we unregister from mei, the worker can't be scheduled 1483 * anymore. 1484 */ 1485 cancel_work_sync(&mvm->sap_connected_wk); 1486 1487 iwl_mvm_leds_exit(mvm); 1488 1489 iwl_mvm_thermal_exit(mvm); 1490 1491 /* 1492 * If we couldn't get ownership on the device and we couldn't 1493 * get the NVM from CSME, we haven't registered to mac80211. 1494 * In that case, we didn't fail op_mode_start, because we are 1495 * waiting for CSME to allow us to get the NVM to register to 1496 * mac80211. If that didn't happen, we haven't registered to 1497 * mac80211, hence the if below. 1498 */ 1499 if (mvm->hw_registered) 1500 ieee80211_unregister_hw(mvm->hw); 1501 1502 kfree(mvm->scan_cmd); 1503 kfree(mvm->mcast_filter_cmd); 1504 mvm->mcast_filter_cmd = NULL; 1505 1506 kfree(mvm->error_recovery_buf); 1507 mvm->error_recovery_buf = NULL; 1508 1509 iwl_mvm_ptp_remove(mvm); 1510 1511 iwl_trans_op_mode_leave(mvm->trans); 1512 1513 iwl_phy_db_free(mvm->phy_db); 1514 mvm->phy_db = NULL; 1515 1516 kfree(mvm->nvm_data); 1517 kfree(mvm->mei_nvm_data); 1518 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1519 kfree(mvm->temp_nvm_data); 1520 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1521 kfree(mvm->nvm_sections[i].data); 1522 1523 cancel_delayed_work_sync(&mvm->tcm.work); 1524 1525 iwl_fw_runtime_free(&mvm->fwrt); 1526 mutex_destroy(&mvm->mutex); 1527 1528 if (mvm->mei_registered) 1529 iwl_mei_unregister_complete(); 1530 1531 ieee80211_free_hw(mvm->hw); 1532 } 1533 1534 struct iwl_async_handler_entry { 1535 struct list_head list; 1536 struct iwl_rx_cmd_buffer rxb; 1537 enum iwl_rx_handler_context context; 1538 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1539 }; 1540 1541 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1542 { 1543 struct iwl_async_handler_entry *entry, *tmp; 1544 1545 spin_lock_bh(&mvm->async_handlers_lock); 1546 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1547 iwl_free_rxb(&entry->rxb); 1548 list_del(&entry->list); 1549 kfree(entry); 1550 } 1551 spin_unlock_bh(&mvm->async_handlers_lock); 1552 } 1553 1554 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1555 { 1556 struct iwl_mvm *mvm = 1557 container_of(wk, struct iwl_mvm, async_handlers_wk); 1558 struct iwl_async_handler_entry *entry, *tmp; 1559 LIST_HEAD(local_list); 1560 1561 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1562 1563 /* 1564 * Sync with Rx path with a lock. Remove all the entries from this list, 1565 * add them to a local one (lock free), and then handle them. 1566 */ 1567 spin_lock_bh(&mvm->async_handlers_lock); 1568 list_splice_init(&mvm->async_handlers_list, &local_list); 1569 spin_unlock_bh(&mvm->async_handlers_lock); 1570 1571 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1572 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1573 mutex_lock(&mvm->mutex); 1574 entry->fn(mvm, &entry->rxb); 1575 iwl_free_rxb(&entry->rxb); 1576 list_del(&entry->list); 1577 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1578 mutex_unlock(&mvm->mutex); 1579 kfree(entry); 1580 } 1581 } 1582 1583 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1584 struct iwl_rx_packet *pkt) 1585 { 1586 struct iwl_fw_dbg_trigger_tlv *trig; 1587 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1588 int i; 1589 1590 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1591 FW_DBG_TRIGGER_FW_NOTIF); 1592 if (!trig) 1593 return; 1594 1595 cmds_trig = (void *)trig->data; 1596 1597 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1598 /* don't collect on CMD 0 */ 1599 if (!cmds_trig->cmds[i].cmd_id) 1600 break; 1601 1602 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1603 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1604 continue; 1605 1606 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1607 "CMD 0x%02x.%02x received", 1608 pkt->hdr.group_id, pkt->hdr.cmd); 1609 break; 1610 } 1611 } 1612 1613 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1614 struct iwl_rx_cmd_buffer *rxb, 1615 struct iwl_rx_packet *pkt) 1616 { 1617 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1618 int i; 1619 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1620 1621 iwl_dbg_tlv_time_point(&mvm->fwrt, 1622 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1623 iwl_mvm_rx_check_trigger(mvm, pkt); 1624 1625 /* 1626 * Do the notification wait before RX handlers so 1627 * even if the RX handler consumes the RXB we have 1628 * access to it in the notification wait entry. 1629 */ 1630 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1631 1632 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1633 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1634 struct iwl_async_handler_entry *entry; 1635 1636 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1637 continue; 1638 1639 if (IWL_FW_CHECK(mvm, pkt_len < rx_h->min_size, 1640 "unexpected notification 0x%04x size %d, need %d\n", 1641 rx_h->cmd_id, pkt_len, rx_h->min_size)) 1642 return; 1643 1644 if (rx_h->context == RX_HANDLER_SYNC) { 1645 rx_h->fn(mvm, rxb); 1646 return; 1647 } 1648 1649 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1650 /* we can't do much... */ 1651 if (!entry) 1652 return; 1653 1654 entry->rxb._page = rxb_steal_page(rxb); 1655 entry->rxb._offset = rxb->_offset; 1656 entry->rxb._rx_page_order = rxb->_rx_page_order; 1657 entry->fn = rx_h->fn; 1658 entry->context = rx_h->context; 1659 spin_lock(&mvm->async_handlers_lock); 1660 list_add_tail(&entry->list, &mvm->async_handlers_list); 1661 spin_unlock(&mvm->async_handlers_lock); 1662 schedule_work(&mvm->async_handlers_wk); 1663 break; 1664 } 1665 } 1666 1667 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1668 struct napi_struct *napi, 1669 struct iwl_rx_cmd_buffer *rxb) 1670 { 1671 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1672 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1673 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1674 1675 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1676 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1677 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1678 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1679 else 1680 iwl_mvm_rx_common(mvm, rxb, pkt); 1681 } 1682 1683 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1684 struct napi_struct *napi, 1685 struct iwl_rx_cmd_buffer *rxb) 1686 { 1687 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1688 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1689 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1690 1691 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1692 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1693 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1694 RX_QUEUES_NOTIFICATION))) 1695 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1696 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1697 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1698 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1699 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1700 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1701 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1702 else 1703 iwl_mvm_rx_common(mvm, rxb, pkt); 1704 } 1705 1706 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1707 const struct iwl_device_cmd *cmd) 1708 { 1709 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1710 1711 /* 1712 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1713 * commands that need to block the Tx queues. 1714 */ 1715 iwl_trans_block_txq_ptrs(mvm->trans, false); 1716 } 1717 1718 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1719 { 1720 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1721 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1722 } 1723 1724 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1725 int hw_queue, bool start) 1726 { 1727 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1728 struct ieee80211_sta *sta; 1729 struct ieee80211_txq *txq; 1730 struct iwl_mvm_txq *mvmtxq; 1731 int i; 1732 unsigned long tid_bitmap; 1733 struct iwl_mvm_sta *mvmsta; 1734 u8 sta_id; 1735 1736 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1737 mvm->tvqm_info[hw_queue].sta_id : 1738 mvm->queue_info[hw_queue].ra_sta_id; 1739 1740 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1741 return; 1742 1743 rcu_read_lock(); 1744 1745 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1746 if (IS_ERR_OR_NULL(sta)) 1747 goto out; 1748 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1749 1750 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1751 if (!start) 1752 ieee80211_stop_queues(mvm->hw); 1753 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1754 ieee80211_wake_queues(mvm->hw); 1755 1756 goto out; 1757 } 1758 1759 if (iwl_mvm_has_new_tx_api(mvm)) { 1760 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1761 1762 tid_bitmap = BIT(tid); 1763 } else { 1764 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1765 } 1766 1767 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1768 int tid = i; 1769 1770 if (tid == IWL_MAX_TID_COUNT) 1771 tid = IEEE80211_NUM_TIDS; 1772 1773 txq = sta->txq[tid]; 1774 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1775 if (start) 1776 clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1777 else 1778 set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1779 1780 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) { 1781 local_bh_disable(); 1782 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1783 local_bh_enable(); 1784 } 1785 } 1786 1787 out: 1788 rcu_read_unlock(); 1789 } 1790 1791 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1792 { 1793 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1794 } 1795 1796 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1797 { 1798 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1799 } 1800 1801 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1802 { 1803 bool state = iwl_mvm_is_radio_killed(mvm); 1804 1805 if (state) 1806 wake_up(&mvm->rx_sync_waitq); 1807 1808 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1809 } 1810 1811 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1812 { 1813 if (state) 1814 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1815 else 1816 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1817 1818 iwl_mvm_set_rfkill_state(mvm); 1819 } 1820 1821 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1822 { 1823 return rcu_dereference_protected(mvm->csme_conn_info, 1824 lockdep_is_held(&mvm->mutex)); 1825 } 1826 1827 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1828 { 1829 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1830 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1831 bool unified = iwl_mvm_has_unified_ucode(mvm); 1832 1833 if (state) 1834 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1835 else 1836 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1837 1838 iwl_mvm_set_rfkill_state(mvm); 1839 1840 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1841 if (rfkill_safe_init_done) 1842 iwl_abort_notification_waits(&mvm->notif_wait); 1843 1844 /* 1845 * Don't ask the transport to stop the firmware. We'll do it 1846 * after cfg80211 takes us down. 1847 */ 1848 if (unified) 1849 return false; 1850 1851 /* 1852 * Stop the device if we run OPERATIONAL firmware or if we are in the 1853 * middle of the calibrations. 1854 */ 1855 return state && rfkill_safe_init_done; 1856 } 1857 1858 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1859 { 1860 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1861 struct ieee80211_tx_info *info; 1862 1863 info = IEEE80211_SKB_CB(skb); 1864 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1865 ieee80211_free_txskb(mvm->hw, skb); 1866 } 1867 1868 struct iwl_mvm_reprobe { 1869 struct device *dev; 1870 struct work_struct work; 1871 }; 1872 1873 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1874 { 1875 struct iwl_mvm_reprobe *reprobe; 1876 1877 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1878 if (device_reprobe(reprobe->dev)) 1879 dev_err(reprobe->dev, "reprobe failed!\n"); 1880 put_device(reprobe->dev); 1881 kfree(reprobe); 1882 module_put(THIS_MODULE); 1883 } 1884 1885 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1886 { 1887 iwl_abort_notification_waits(&mvm->notif_wait); 1888 iwl_dbg_tlv_del_timers(mvm->trans); 1889 1890 /* 1891 * This is a bit racy, but worst case we tell mac80211 about 1892 * a stopped/aborted scan when that was already done which 1893 * is not a problem. It is necessary to abort any os scan 1894 * here because mac80211 requires having the scan cleared 1895 * before restarting. 1896 * We'll reset the scan_status to NONE in restart cleanup in 1897 * the next start() call from mac80211. If restart isn't called 1898 * (no fw restart) scan status will stay busy. 1899 */ 1900 iwl_mvm_report_scan_aborted(mvm); 1901 1902 /* 1903 * If we're restarting already, don't cycle restarts. 1904 * If INIT fw asserted, it will likely fail again. 1905 * If WoWLAN fw asserted, don't restart either, mac80211 1906 * can't recover this since we're already half suspended. 1907 */ 1908 if (!mvm->fw_restart && fw_error) { 1909 iwl_fw_error_collect(&mvm->fwrt, false); 1910 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1911 &mvm->status)) { 1912 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1913 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1914 struct iwl_mvm_reprobe *reprobe; 1915 1916 IWL_ERR(mvm, 1917 "Firmware error during reconfiguration - reprobe!\n"); 1918 1919 /* 1920 * get a module reference to avoid doing this while unloading 1921 * anyway and to avoid scheduling a work with code that's 1922 * being removed. 1923 */ 1924 if (!try_module_get(THIS_MODULE)) { 1925 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1926 return; 1927 } 1928 1929 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1930 if (!reprobe) { 1931 module_put(THIS_MODULE); 1932 return; 1933 } 1934 reprobe->dev = get_device(mvm->trans->dev); 1935 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1936 schedule_work(&reprobe->work); 1937 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1938 &mvm->status)) { 1939 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1940 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1941 mvm->hw_registered && 1942 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1943 /* This should be first thing before trying to collect any 1944 * data to avoid endless loops if any HW error happens while 1945 * collecting debug data. 1946 */ 1947 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1948 1949 if (mvm->fw->ucode_capa.error_log_size) { 1950 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1951 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1952 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1953 1954 if (recover_buf) { 1955 mvm->error_recovery_buf = recover_buf; 1956 iwl_trans_read_mem_bytes(mvm->trans, 1957 src_addr, 1958 recover_buf, 1959 src_size); 1960 } 1961 } 1962 1963 iwl_fw_error_collect(&mvm->fwrt, false); 1964 1965 if (fw_error && mvm->fw_restart > 0) { 1966 mvm->fw_restart--; 1967 ieee80211_restart_hw(mvm->hw); 1968 } else if (mvm->fwrt.trans->dbg.restart_required) { 1969 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1970 mvm->fwrt.trans->dbg.restart_required = FALSE; 1971 ieee80211_restart_hw(mvm->hw); 1972 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1973 ieee80211_restart_hw(mvm->hw); 1974 } 1975 } 1976 } 1977 1978 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1979 { 1980 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1981 1982 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1983 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1984 &mvm->status)) 1985 iwl_mvm_dump_nic_error_log(mvm); 1986 1987 if (sync) { 1988 iwl_fw_error_collect(&mvm->fwrt, true); 1989 /* 1990 * Currently, the only case for sync=true is during 1991 * shutdown, so just stop in this case. If/when that 1992 * changes, we need to be a bit smarter here. 1993 */ 1994 return; 1995 } 1996 1997 /* 1998 * If the firmware crashes while we're already considering it 1999 * to be dead then don't ask for a restart, that cannot do 2000 * anything useful anyway. 2001 */ 2002 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 2003 return; 2004 2005 iwl_mvm_nic_restart(mvm, false); 2006 } 2007 2008 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 2009 { 2010 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2011 2012 WARN_ON(1); 2013 iwl_mvm_nic_restart(mvm, true); 2014 } 2015 2016 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 2017 enum iwl_fw_ini_time_point tp_id, 2018 union iwl_dbg_tlv_tp_data *tp_data) 2019 { 2020 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2021 2022 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 2023 } 2024 2025 #define IWL_MVM_COMMON_OPS \ 2026 /* these could be differentiated */ \ 2027 .async_cb = iwl_mvm_async_cb, \ 2028 .queue_full = iwl_mvm_stop_sw_queue, \ 2029 .queue_not_full = iwl_mvm_wake_sw_queue, \ 2030 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 2031 .free_skb = iwl_mvm_free_skb, \ 2032 .nic_error = iwl_mvm_nic_error, \ 2033 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 2034 .nic_config = iwl_mvm_nic_config, \ 2035 /* as we only register one, these MUST be common! */ \ 2036 .start = iwl_op_mode_mvm_start, \ 2037 .stop = iwl_op_mode_mvm_stop, \ 2038 .time_point = iwl_op_mode_mvm_time_point 2039 2040 static const struct iwl_op_mode_ops iwl_mvm_ops = { 2041 IWL_MVM_COMMON_OPS, 2042 .rx = iwl_mvm_rx, 2043 }; 2044 2045 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 2046 struct napi_struct *napi, 2047 struct iwl_rx_cmd_buffer *rxb, 2048 unsigned int queue) 2049 { 2050 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2051 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2052 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 2053 2054 if (unlikely(queue >= mvm->trans->num_rx_queues)) 2055 return; 2056 2057 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 2058 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 2059 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 2060 RX_QUEUES_NOTIFICATION))) 2061 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 2062 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 2063 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 2064 } 2065 2066 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 2067 IWL_MVM_COMMON_OPS, 2068 .rx = iwl_mvm_rx_mq, 2069 .rx_rss = iwl_mvm_rx_mq_rss, 2070 }; 2071