1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2020 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(sband, 196 ieee80211_vif_type_p2p(vif)); 197 198 if (he_cap) { 199 /* we know that ours is writable */ 200 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 201 202 WARN_ON(!he->has_he); 203 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 204 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 205 he->he_cap_elem.phy_cap_info[0] &= 206 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 207 } 208 209 ieee80211_disconnect(vif, true); 210 } 211 212 void iwl_mvm_update_link_smps(struct ieee80211_vif *vif, 213 struct ieee80211_bss_conf *link_conf) 214 { 215 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 216 struct iwl_mvm *mvm = mvmvif->mvm; 217 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 218 219 if (!link_conf) 220 return; 221 222 if (mvm->fw_static_smps_request && 223 link_conf->chandef.width == NL80211_CHAN_WIDTH_160 && 224 link_conf->he_support) 225 mode = IEEE80211_SMPS_STATIC; 226 227 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode, 228 link_conf->link_id); 229 } 230 231 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 232 struct ieee80211_vif *vif) 233 { 234 struct ieee80211_bss_conf *link_conf; 235 unsigned int link_id; 236 237 rcu_read_lock(); 238 239 for_each_vif_active_link(vif, link_conf, link_id) 240 iwl_mvm_update_link_smps(vif, link_conf); 241 242 rcu_read_unlock(); 243 } 244 245 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 246 struct iwl_rx_cmd_buffer *rxb) 247 { 248 struct iwl_rx_packet *pkt = rxb_addr(rxb); 249 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 250 251 /* 252 * We could pass it to the iterator data, but also need to remember 253 * it for new interfaces that are added while in this state. 254 */ 255 mvm->fw_static_smps_request = 256 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 257 ieee80211_iterate_interfaces(mvm->hw, 258 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, 259 iwl_mvm_intf_dual_chain_req, NULL); 260 } 261 262 /** 263 * enum iwl_rx_handler_context context for Rx handler 264 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 265 * which can't acquire mvm->mutex. 266 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 267 * (and only in this case!), it should be set as ASYNC. In that case, 268 * it will be called from a worker with mvm->mutex held. 269 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 270 * mutex itself, it will be called from a worker without mvm->mutex held. 271 */ 272 enum iwl_rx_handler_context { 273 RX_HANDLER_SYNC, 274 RX_HANDLER_ASYNC_LOCKED, 275 RX_HANDLER_ASYNC_UNLOCKED, 276 }; 277 278 /** 279 * struct iwl_rx_handlers handler for FW notification 280 * @cmd_id: command id 281 * @min_size: minimum size to expect for the notification 282 * @context: see &iwl_rx_handler_context 283 * @fn: the function is called when notification is received 284 */ 285 struct iwl_rx_handlers { 286 u16 cmd_id, min_size; 287 enum iwl_rx_handler_context context; 288 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 289 }; 290 291 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 292 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 293 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 294 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 295 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 296 { .cmd_id = _cmd_id, .fn = _fn, \ 297 .context = _context, .min_size = sizeof(_struct), } 298 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 299 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 300 .context = _context, .min_size = sizeof(_struct), } 301 302 /* 303 * Handlers for fw notifications 304 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 305 * This list should be in order of frequency for performance purposes. 306 * 307 * The handler can be one from three contexts, see &iwl_rx_handler_context 308 */ 309 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 310 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 311 struct iwl_mvm_tx_resp), 312 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 313 struct iwl_mvm_ba_notif), 314 315 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 316 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 317 struct iwl_tlc_update_notif), 318 319 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 320 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 321 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 322 RX_HANDLER_ASYNC_LOCKED), 323 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 324 RX_HANDLER_ASYNC_LOCKED), 325 326 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 327 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 328 struct iwl_ba_window_status_notif), 329 330 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 331 RX_HANDLER_SYNC, struct iwl_time_event_notif), 332 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 333 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 334 struct iwl_mvm_session_prot_notif), 335 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 336 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 337 338 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 339 struct iwl_mvm_eosp_notification), 340 341 RX_HANDLER(SCAN_ITERATION_COMPLETE, 342 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 343 struct iwl_lmac_scan_complete_notif), 344 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 345 iwl_mvm_rx_lmac_scan_complete_notif, 346 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 347 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 348 iwl_mvm_rx_scan_match_found, 349 RX_HANDLER_SYNC), 350 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 351 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 352 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 353 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 354 struct iwl_umac_scan_iter_complete_notif), 355 356 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 357 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 358 359 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 360 struct iwl_error_resp), 361 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 362 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 363 struct iwl_uapsd_misbehaving_ap_notif), 364 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 365 RX_HANDLER_ASYNC_LOCKED), 366 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 367 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 368 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 369 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 370 struct ct_kill_notif), 371 372 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 373 RX_HANDLER_ASYNC_LOCKED, 374 struct iwl_tdls_channel_switch_notif), 375 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 376 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 377 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 378 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 379 struct iwl_ftm_responder_stats), 380 381 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 382 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 383 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 384 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 385 386 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 387 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 388 struct iwl_mfu_assert_dump_notif), 389 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 390 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 391 struct iwl_stored_beacon_notif_v2), 392 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 393 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 394 struct iwl_mu_group_mgmt_notif), 395 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 396 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 397 struct iwl_mvm_pm_state_notification), 398 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 399 iwl_mvm_probe_resp_data_notif, 400 RX_HANDLER_ASYNC_LOCKED, 401 struct iwl_probe_resp_data_notif), 402 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 403 iwl_mvm_channel_switch_start_notif, 404 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 405 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, 406 iwl_mvm_channel_switch_error_notif, 407 RX_HANDLER_ASYNC_UNLOCKED, 408 struct iwl_channel_switch_error_notif), 409 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 410 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 411 struct iwl_datapath_monitor_notif), 412 413 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 414 iwl_mvm_rx_thermal_dual_chain_req, 415 RX_HANDLER_ASYNC_LOCKED, 416 struct iwl_thermal_dual_chain_request), 417 418 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, 419 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, 420 struct iwl_rfi_deactivate_notif), 421 422 RX_HANDLER_GRP(LEGACY_GROUP, 423 WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION, 424 iwl_mvm_time_sync_msmt_event, RX_HANDLER_SYNC, 425 struct iwl_time_msmt_notify), 426 RX_HANDLER_GRP(LEGACY_GROUP, 427 WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION, 428 iwl_mvm_time_sync_msmt_confirm_event, RX_HANDLER_SYNC, 429 struct iwl_time_msmt_cfm_notify), 430 }; 431 #undef RX_HANDLER 432 #undef RX_HANDLER_GRP 433 434 /* Please keep this array *SORTED* by hex value. 435 * Access is done through binary search 436 */ 437 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 438 HCMD_NAME(UCODE_ALIVE_NTFY), 439 HCMD_NAME(REPLY_ERROR), 440 HCMD_NAME(ECHO_CMD), 441 HCMD_NAME(INIT_COMPLETE_NOTIF), 442 HCMD_NAME(PHY_CONTEXT_CMD), 443 HCMD_NAME(DBG_CFG), 444 HCMD_NAME(SCAN_CFG_CMD), 445 HCMD_NAME(SCAN_REQ_UMAC), 446 HCMD_NAME(SCAN_ABORT_UMAC), 447 HCMD_NAME(SCAN_COMPLETE_UMAC), 448 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 449 HCMD_NAME(ADD_STA_KEY), 450 HCMD_NAME(ADD_STA), 451 HCMD_NAME(REMOVE_STA), 452 HCMD_NAME(TX_CMD), 453 HCMD_NAME(SCD_QUEUE_CFG), 454 HCMD_NAME(TXPATH_FLUSH), 455 HCMD_NAME(MGMT_MCAST_KEY), 456 HCMD_NAME(WEP_KEY), 457 HCMD_NAME(SHARED_MEM_CFG), 458 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 459 HCMD_NAME(MAC_CONTEXT_CMD), 460 HCMD_NAME(TIME_EVENT_CMD), 461 HCMD_NAME(TIME_EVENT_NOTIFICATION), 462 HCMD_NAME(BINDING_CONTEXT_CMD), 463 HCMD_NAME(TIME_QUOTA_CMD), 464 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 465 HCMD_NAME(LEDS_CMD), 466 HCMD_NAME(LQ_CMD), 467 HCMD_NAME(FW_PAGING_BLOCK_CMD), 468 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 469 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 470 HCMD_NAME(HOT_SPOT_CMD), 471 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 472 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 473 HCMD_NAME(BT_COEX_CI), 474 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION), 475 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION), 476 HCMD_NAME(PHY_CONFIGURATION_CMD), 477 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 478 HCMD_NAME(PHY_DB_CMD), 479 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 480 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 481 HCMD_NAME(POWER_TABLE_CMD), 482 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 483 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 484 HCMD_NAME(NVM_ACCESS_CMD), 485 HCMD_NAME(BEACON_NOTIFICATION), 486 HCMD_NAME(BEACON_TEMPLATE_CMD), 487 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 488 HCMD_NAME(BT_CONFIG), 489 HCMD_NAME(STATISTICS_CMD), 490 HCMD_NAME(STATISTICS_NOTIFICATION), 491 HCMD_NAME(EOSP_NOTIFICATION), 492 HCMD_NAME(REDUCE_TX_POWER_CMD), 493 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 494 HCMD_NAME(TDLS_CONFIG_CMD), 495 HCMD_NAME(MAC_PM_POWER_TABLE), 496 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 497 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 498 HCMD_NAME(RSS_CONFIG_CMD), 499 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 500 HCMD_NAME(REPLY_RX_PHY_CMD), 501 HCMD_NAME(REPLY_RX_MPDU_CMD), 502 HCMD_NAME(BAR_FRAME_RELEASE), 503 HCMD_NAME(FRAME_RELEASE), 504 HCMD_NAME(BA_NOTIF), 505 HCMD_NAME(MCC_UPDATE_CMD), 506 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 507 HCMD_NAME(MARKER_CMD), 508 HCMD_NAME(BT_PROFILE_NOTIFICATION), 509 HCMD_NAME(MCAST_FILTER_CMD), 510 HCMD_NAME(REPLY_SF_CFG_CMD), 511 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 512 HCMD_NAME(D3_CONFIG_CMD), 513 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 514 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 515 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 516 HCMD_NAME(WOWLAN_PATTERNS), 517 HCMD_NAME(WOWLAN_CONFIGURATION), 518 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 519 HCMD_NAME(WOWLAN_TKIP_PARAM), 520 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 521 HCMD_NAME(WOWLAN_GET_STATUSES), 522 HCMD_NAME(SCAN_ITERATION_COMPLETE), 523 HCMD_NAME(D0I3_END_CMD), 524 HCMD_NAME(LTR_CONFIG), 525 HCMD_NAME(LDBG_CONFIG_CMD), 526 }; 527 528 /* Please keep this array *SORTED* by hex value. 529 * Access is done through binary search 530 */ 531 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 532 HCMD_NAME(SHARED_MEM_CFG_CMD), 533 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 534 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 535 HCMD_NAME(RFI_CONFIG_CMD), 536 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 537 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 538 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 539 }; 540 541 /* Please keep this array *SORTED* by hex value. 542 * Access is done through binary search 543 */ 544 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 545 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 546 HCMD_NAME(SESSION_PROTECTION_CMD), 547 HCMD_NAME(MAC_CONFIG_CMD), 548 HCMD_NAME(LINK_CONFIG_CMD), 549 HCMD_NAME(STA_CONFIG_CMD), 550 HCMD_NAME(AUX_STA_CMD), 551 HCMD_NAME(STA_REMOVE_CMD), 552 HCMD_NAME(STA_DISABLE_TX_CMD), 553 HCMD_NAME(SESSION_PROTECTION_NOTIF), 554 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 555 }; 556 557 /* Please keep this array *SORTED* by hex value. 558 * Access is done through binary search 559 */ 560 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 561 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 562 HCMD_NAME(CTDP_CONFIG_CMD), 563 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 564 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 565 HCMD_NAME(CT_KILL_NOTIFICATION), 566 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 567 }; 568 569 /* Please keep this array *SORTED* by hex value. 570 * Access is done through binary search 571 */ 572 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 573 HCMD_NAME(DQA_ENABLE_CMD), 574 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 575 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 576 HCMD_NAME(STA_HE_CTXT_CMD), 577 HCMD_NAME(RLC_CONFIG_CMD), 578 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 579 HCMD_NAME(TLC_MNG_CONFIG_CMD), 580 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 581 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 582 HCMD_NAME(SEC_KEY_CMD), 583 HCMD_NAME(MONITOR_NOTIF), 584 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 585 HCMD_NAME(STA_PM_NOTIF), 586 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 587 HCMD_NAME(RX_QUEUES_NOTIFICATION), 588 }; 589 590 /* Please keep this array *SORTED* by hex value. 591 * Access is done through binary search 592 */ 593 static const struct iwl_hcmd_names iwl_mvm_scan_names[] = { 594 HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF), 595 }; 596 597 /* Please keep this array *SORTED* by hex value. 598 * Access is done through binary search 599 */ 600 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 601 HCMD_NAME(TOF_RANGE_REQ_CMD), 602 HCMD_NAME(TOF_CONFIG_CMD), 603 HCMD_NAME(TOF_RANGE_ABORT_CMD), 604 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 605 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 606 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 607 HCMD_NAME(TOF_LC_NOTIF), 608 HCMD_NAME(TOF_RESPONDER_STATS), 609 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 610 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 611 }; 612 613 /* Please keep this array *SORTED* by hex value. 614 * Access is done through binary search 615 */ 616 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 617 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), 618 HCMD_NAME(WOWLAN_INFO_NOTIFICATION), 619 HCMD_NAME(D3_END_NOTIFICATION), 620 HCMD_NAME(STORED_BEACON_NTF), 621 }; 622 623 /* Please keep this array *SORTED* by hex value. 624 * Access is done through binary search 625 */ 626 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 627 HCMD_NAME(NVM_ACCESS_COMPLETE), 628 HCMD_NAME(NVM_GET_INFO), 629 HCMD_NAME(TAS_CONFIG), 630 }; 631 632 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 633 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 634 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 635 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 636 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 637 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 638 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 639 [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names), 640 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 641 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 642 [REGULATORY_AND_NVM_GROUP] = 643 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 644 }; 645 646 /* this forward declaration can avoid to export the function */ 647 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 648 649 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 650 { 651 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 652 u64 dflt_pwr_limit; 653 654 if (!backoff) 655 return 0; 656 657 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 658 659 while (backoff->pwr) { 660 if (dflt_pwr_limit >= backoff->pwr) 661 return backoff->backoff; 662 663 backoff++; 664 } 665 666 return 0; 667 } 668 669 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 670 { 671 struct iwl_mvm *mvm = 672 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 673 struct ieee80211_vif *tx_blocked_vif; 674 struct iwl_mvm_vif *mvmvif; 675 676 mutex_lock(&mvm->mutex); 677 678 tx_blocked_vif = 679 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 680 lockdep_is_held(&mvm->mutex)); 681 682 if (!tx_blocked_vif) 683 goto unlock; 684 685 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 686 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 687 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 688 unlock: 689 mutex_unlock(&mvm->mutex); 690 } 691 692 static void iwl_mvm_fwrt_dump_start(void *ctx) 693 { 694 struct iwl_mvm *mvm = ctx; 695 696 mutex_lock(&mvm->mutex); 697 } 698 699 static void iwl_mvm_fwrt_dump_end(void *ctx) 700 { 701 struct iwl_mvm *mvm = ctx; 702 703 mutex_unlock(&mvm->mutex); 704 } 705 706 static bool iwl_mvm_fwrt_fw_running(void *ctx) 707 { 708 return iwl_mvm_firmware_running(ctx); 709 } 710 711 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 712 { 713 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 714 int ret; 715 716 mutex_lock(&mvm->mutex); 717 ret = iwl_mvm_send_cmd(mvm, host_cmd); 718 mutex_unlock(&mvm->mutex); 719 720 return ret; 721 } 722 723 static bool iwl_mvm_d3_debug_enable(void *ctx) 724 { 725 return IWL_MVM_D3_DEBUG; 726 } 727 728 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 729 .dump_start = iwl_mvm_fwrt_dump_start, 730 .dump_end = iwl_mvm_fwrt_dump_end, 731 .fw_running = iwl_mvm_fwrt_fw_running, 732 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 733 .d3_debug_enable = iwl_mvm_d3_debug_enable, 734 }; 735 736 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 737 { 738 struct iwl_trans *trans = mvm->trans; 739 int ret; 740 741 if (trans->csme_own) { 742 if (WARN(!mvm->mei_registered, 743 "csme is owner, but we aren't registered to iwlmei\n")) 744 goto get_nvm_from_fw; 745 746 mvm->mei_nvm_data = iwl_mei_get_nvm(); 747 if (mvm->mei_nvm_data) { 748 /* 749 * mvm->mei_nvm_data is set and because of that, 750 * we'll load the NVM from the FW when we'll get 751 * ownership. 752 */ 753 mvm->nvm_data = 754 iwl_parse_mei_nvm_data(trans, trans->cfg, 755 mvm->mei_nvm_data, mvm->fw); 756 return 0; 757 } 758 759 IWL_ERR(mvm, 760 "Got a NULL NVM from CSME, trying to get it from the device\n"); 761 } 762 763 get_nvm_from_fw: 764 rtnl_lock(); 765 wiphy_lock(mvm->hw->wiphy); 766 mutex_lock(&mvm->mutex); 767 768 ret = iwl_trans_start_hw(mvm->trans); 769 if (ret) { 770 mutex_unlock(&mvm->mutex); 771 wiphy_unlock(mvm->hw->wiphy); 772 rtnl_unlock(); 773 return ret; 774 } 775 776 ret = iwl_run_init_mvm_ucode(mvm); 777 if (ret && ret != -ERFKILL) 778 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 779 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 780 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 781 ret = iwl_mvm_init_mcc(mvm); 782 } 783 784 if (!iwlmvm_mod_params.init_dbg || !ret) 785 iwl_mvm_stop_device(mvm); 786 787 mutex_unlock(&mvm->mutex); 788 wiphy_unlock(mvm->hw->wiphy); 789 rtnl_unlock(); 790 791 if (ret) 792 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 793 794 return ret; 795 } 796 797 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 798 { 799 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 800 int ret; 801 802 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 803 804 ret = iwl_mvm_mac_setup_register(mvm); 805 if (ret) 806 return ret; 807 808 mvm->hw_registered = true; 809 810 iwl_mvm_dbgfs_register(mvm); 811 812 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 813 mvm->mei_rfkill_blocked, 814 RFKILL_HARD_BLOCK_NOT_OWNER); 815 816 iwl_mvm_mei_set_sw_rfkill_state(mvm); 817 818 return 0; 819 } 820 821 struct iwl_mvm_frob_txf_data { 822 u8 *buf; 823 size_t buflen; 824 }; 825 826 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 827 struct ieee80211_vif *vif, 828 struct ieee80211_sta *sta, 829 struct ieee80211_key_conf *key, 830 void *data) 831 { 832 struct iwl_mvm_frob_txf_data *txf = data; 833 u8 keylen, match, matchend; 834 u8 *keydata; 835 size_t i; 836 837 switch (key->cipher) { 838 case WLAN_CIPHER_SUITE_CCMP: 839 keydata = key->key; 840 keylen = key->keylen; 841 break; 842 case WLAN_CIPHER_SUITE_WEP40: 843 case WLAN_CIPHER_SUITE_WEP104: 844 case WLAN_CIPHER_SUITE_TKIP: 845 /* 846 * WEP has short keys which might show up in the payload, 847 * and then you can deduce the key, so in this case just 848 * remove all FIFO data. 849 * For TKIP, we don't know the phase 2 keys here, so same. 850 */ 851 memset(txf->buf, 0xBB, txf->buflen); 852 return; 853 default: 854 return; 855 } 856 857 /* scan for key material and clear it out */ 858 match = 0; 859 for (i = 0; i < txf->buflen; i++) { 860 if (txf->buf[i] != keydata[match]) { 861 match = 0; 862 continue; 863 } 864 match++; 865 if (match == keylen) { 866 memset(txf->buf + i - keylen, 0xAA, keylen); 867 match = 0; 868 } 869 } 870 871 /* we're dealing with a FIFO, so check wrapped around data */ 872 matchend = match; 873 for (i = 0; match && i < keylen - match; i++) { 874 if (txf->buf[i] != keydata[match]) 875 break; 876 match++; 877 if (match == keylen) { 878 memset(txf->buf, 0xAA, i + 1); 879 memset(txf->buf + txf->buflen - matchend, 0xAA, 880 matchend); 881 break; 882 } 883 } 884 } 885 886 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 887 { 888 struct iwl_mvm_frob_txf_data txf = { 889 .buf = buf, 890 .buflen = buflen, 891 }; 892 struct iwl_mvm *mvm = ctx; 893 894 /* embedded key material exists only on old API */ 895 if (iwl_mvm_has_new_tx_api(mvm)) 896 return; 897 898 rcu_read_lock(); 899 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 900 rcu_read_unlock(); 901 } 902 903 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 904 { 905 /* we only use wide headers for commands */ 906 struct iwl_cmd_header_wide *hdr = hcmd; 907 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 908 909 if (len < sizeof(hdr)) 910 return; 911 912 /* all the commands we care about are in LONG_GROUP */ 913 if (hdr->group_id != LONG_GROUP) 914 return; 915 916 switch (hdr->cmd) { 917 case WEP_KEY: 918 case WOWLAN_TKIP_PARAM: 919 case WOWLAN_KEK_KCK_MATERIAL: 920 case ADD_STA_KEY: 921 /* 922 * blank out everything here, easier than dealing 923 * with the various versions of the command 924 */ 925 frob_end = INT_MAX; 926 break; 927 case MGMT_MCAST_KEY: 928 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 929 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 930 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 931 932 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 933 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 934 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 935 break; 936 } 937 938 if (frob_start >= frob_end) 939 return; 940 941 if (frob_end > len) 942 frob_end = len; 943 944 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 945 } 946 947 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 948 { 949 const struct iwl_dump_exclude *excl; 950 struct iwl_mvm *mvm = ctx; 951 int i; 952 953 switch (mvm->fwrt.cur_fw_img) { 954 case IWL_UCODE_INIT: 955 default: 956 /* not relevant */ 957 return; 958 case IWL_UCODE_REGULAR: 959 case IWL_UCODE_REGULAR_USNIFFER: 960 excl = mvm->fw->dump_excl; 961 break; 962 case IWL_UCODE_WOWLAN: 963 excl = mvm->fw->dump_excl_wowlan; 964 break; 965 } 966 967 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 968 sizeof(mvm->fw->dump_excl_wowlan)); 969 970 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 971 u32 start, end; 972 973 if (!excl[i].addr || !excl[i].size) 974 continue; 975 976 start = excl[i].addr; 977 end = start + excl[i].size; 978 979 if (end <= mem_addr || start >= mem_addr + buflen) 980 continue; 981 982 if (start < mem_addr) 983 start = mem_addr; 984 985 if (end > mem_addr + buflen) 986 end = mem_addr + buflen; 987 988 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 989 } 990 } 991 992 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 993 .frob_txf = iwl_mvm_frob_txf, 994 .frob_hcmd = iwl_mvm_frob_hcmd, 995 .frob_mem = iwl_mvm_frob_mem, 996 }; 997 998 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 999 { 1000 struct iwl_mvm *mvm = priv; 1001 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 1002 1003 /* 1004 * This is protected by the guarantee that this function will not be 1005 * called twice on two different threads 1006 */ 1007 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 1008 1009 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 1010 if (!curr_conn_info) 1011 return; 1012 1013 curr_conn_info->conn_info = *conn_info; 1014 1015 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 1016 1017 if (prev_conn_info) 1018 kfree_rcu(prev_conn_info, rcu_head); 1019 } 1020 1021 static void iwl_mvm_mei_rfkill(void *priv, bool blocked, 1022 bool csme_taking_ownership) 1023 { 1024 struct iwl_mvm *mvm = priv; 1025 1026 if (blocked && !csme_taking_ownership) 1027 return; 1028 1029 mvm->mei_rfkill_blocked = blocked; 1030 if (!mvm->hw_registered) 1031 return; 1032 1033 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 1034 mvm->mei_rfkill_blocked, 1035 RFKILL_HARD_BLOCK_NOT_OWNER); 1036 } 1037 1038 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 1039 { 1040 struct iwl_mvm *mvm = priv; 1041 1042 if (!mvm->hw_registered || !mvm->csme_vif) 1043 return; 1044 1045 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 1046 } 1047 1048 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1049 { 1050 struct iwl_mvm *mvm = 1051 container_of(wk, struct iwl_mvm, sap_connected_wk); 1052 int ret; 1053 1054 ret = iwl_mvm_start_get_nvm(mvm); 1055 if (ret) 1056 goto out_free; 1057 1058 ret = iwl_mvm_start_post_nvm(mvm); 1059 if (ret) 1060 goto out_free; 1061 1062 return; 1063 1064 out_free: 1065 IWL_ERR(mvm, "Couldn't get started...\n"); 1066 iwl_mei_start_unregister(); 1067 iwl_mei_unregister_complete(); 1068 iwl_fw_flush_dumps(&mvm->fwrt); 1069 iwl_mvm_thermal_exit(mvm); 1070 iwl_fw_runtime_free(&mvm->fwrt); 1071 iwl_phy_db_free(mvm->phy_db); 1072 kfree(mvm->scan_cmd); 1073 iwl_trans_op_mode_leave(mvm->trans); 1074 kfree(mvm->nvm_data); 1075 kfree(mvm->mei_nvm_data); 1076 1077 ieee80211_free_hw(mvm->hw); 1078 } 1079 1080 static void iwl_mvm_mei_sap_connected(void *priv) 1081 { 1082 struct iwl_mvm *mvm = priv; 1083 1084 if (!mvm->hw_registered) 1085 schedule_work(&mvm->sap_connected_wk); 1086 } 1087 1088 static void iwl_mvm_mei_nic_stolen(void *priv) 1089 { 1090 struct iwl_mvm *mvm = priv; 1091 1092 rtnl_lock(); 1093 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1094 rtnl_unlock(); 1095 } 1096 1097 static const struct iwl_mei_ops mei_ops = { 1098 .me_conn_status = iwl_mvm_me_conn_status, 1099 .rfkill = iwl_mvm_mei_rfkill, 1100 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1101 .sap_connected = iwl_mvm_mei_sap_connected, 1102 .nic_stolen = iwl_mvm_mei_nic_stolen, 1103 }; 1104 1105 static struct iwl_op_mode * 1106 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1107 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1108 { 1109 struct ieee80211_hw *hw; 1110 struct iwl_op_mode *op_mode; 1111 struct iwl_mvm *mvm; 1112 struct iwl_trans_config trans_cfg = {}; 1113 static const u8 no_reclaim_cmds[] = { 1114 TX_CMD, 1115 }; 1116 u32 max_agg; 1117 size_t scan_size; 1118 u32 min_backoff; 1119 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1120 1121 /* 1122 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1123 * index all over the driver - check that its value corresponds to the 1124 * array size. 1125 */ 1126 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1127 IWL_MVM_STATION_COUNT_MAX); 1128 1129 /******************************** 1130 * 1. Allocating and configuring HW data 1131 ********************************/ 1132 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1133 sizeof(struct iwl_mvm), 1134 iwl_mvm_has_mld_api(fw) ? &iwl_mvm_mld_hw_ops : 1135 &iwl_mvm_hw_ops); 1136 if (!hw) 1137 return NULL; 1138 1139 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 1140 max_agg = IEEE80211_MAX_AMPDU_BUF_EHT; 1141 else 1142 max_agg = IEEE80211_MAX_AMPDU_BUF_HE; 1143 1144 hw->max_rx_aggregation_subframes = max_agg; 1145 1146 if (cfg->max_tx_agg_size) 1147 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1148 else 1149 hw->max_tx_aggregation_subframes = max_agg; 1150 1151 op_mode = hw->priv; 1152 1153 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1154 mvm->dev = trans->dev; 1155 mvm->trans = trans; 1156 mvm->cfg = cfg; 1157 mvm->fw = fw; 1158 mvm->hw = hw; 1159 1160 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1161 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1162 1163 iwl_mvm_get_acpi_tables(mvm); 1164 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1165 iwl_uefi_get_step_table(trans); 1166 1167 mvm->init_status = 0; 1168 1169 if (iwl_mvm_has_new_rx_api(mvm)) { 1170 op_mode->ops = &iwl_mvm_ops_mq; 1171 trans->rx_mpdu_cmd_hdr_size = 1172 (trans->trans_cfg->device_family >= 1173 IWL_DEVICE_FAMILY_AX210) ? 1174 sizeof(struct iwl_rx_mpdu_desc) : 1175 IWL_RX_DESC_SIZE_V1; 1176 } else { 1177 op_mode->ops = &iwl_mvm_ops; 1178 trans->rx_mpdu_cmd_hdr_size = 1179 sizeof(struct iwl_rx_mpdu_res_start); 1180 1181 if (WARN_ON(trans->num_rx_queues > 1)) 1182 goto out_free; 1183 } 1184 1185 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1186 1187 if (iwl_mvm_has_new_tx_api(mvm)) { 1188 /* 1189 * If we have the new TX/queue allocation API initialize them 1190 * all to invalid numbers. We'll rewrite the ones that we need 1191 * later, but that doesn't happen for all of them all of the 1192 * time (e.g. P2P Device is optional), and if a dynamic queue 1193 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1194 * iwl_mvm_is_static_queue() erroneously returns true, and we 1195 * might have things getting stuck. 1196 */ 1197 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1198 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1199 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1200 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1201 } else { 1202 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1203 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1204 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1205 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1206 } 1207 1208 mvm->sf_state = SF_UNINIT; 1209 if (iwl_mvm_has_unified_ucode(mvm)) 1210 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1211 else 1212 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1213 mvm->drop_bcn_ap_mode = true; 1214 1215 mutex_init(&mvm->mutex); 1216 spin_lock_init(&mvm->async_handlers_lock); 1217 INIT_LIST_HEAD(&mvm->time_event_list); 1218 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1219 INIT_LIST_HEAD(&mvm->async_handlers_list); 1220 spin_lock_init(&mvm->time_event_lock); 1221 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1222 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1223 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1224 1225 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1226 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1227 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1228 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1229 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1230 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1231 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1232 spin_lock_init(&mvm->add_stream_lock); 1233 1234 init_waitqueue_head(&mvm->rx_sync_waitq); 1235 1236 mvm->queue_sync_state = 0; 1237 1238 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1239 1240 spin_lock_init(&mvm->tcm.lock); 1241 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1242 mvm->tcm.ts = jiffies; 1243 mvm->tcm.ll_ts = jiffies; 1244 mvm->tcm.uapsd_nonagg_ts = jiffies; 1245 1246 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1247 1248 mvm->cmd_ver.range_resp = 1249 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1250 TOF_RANGE_RESPONSE_NOTIF, 5); 1251 /* we only support up to version 9 */ 1252 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1253 goto out_free; 1254 1255 /* 1256 * Populate the state variables that the transport layer needs 1257 * to know about. 1258 */ 1259 trans_cfg.op_mode = op_mode; 1260 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1261 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1262 1263 switch (iwlwifi_mod_params.amsdu_size) { 1264 case IWL_AMSDU_DEF: 1265 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1266 break; 1267 case IWL_AMSDU_4K: 1268 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1269 break; 1270 case IWL_AMSDU_8K: 1271 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1272 break; 1273 case IWL_AMSDU_12K: 1274 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1275 break; 1276 default: 1277 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1278 iwlwifi_mod_params.amsdu_size); 1279 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1280 } 1281 1282 trans->wide_cmd_header = true; 1283 trans_cfg.bc_table_dword = 1284 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1285 1286 trans_cfg.command_groups = iwl_mvm_groups; 1287 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1288 1289 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1290 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1291 trans_cfg.scd_set_active = true; 1292 1293 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1294 driver_data[2]); 1295 1296 /* Set a short watchdog for the command queue */ 1297 trans_cfg.cmd_q_wdg_timeout = 1298 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1299 1300 snprintf(mvm->hw->wiphy->fw_version, 1301 sizeof(mvm->hw->wiphy->fw_version), 1302 "%s", fw->fw_version); 1303 1304 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1305 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1306 1307 trans_cfg.queue_alloc_cmd_ver = 1308 iwl_fw_lookup_cmd_ver(mvm->fw, 1309 WIDE_ID(DATA_PATH_GROUP, 1310 SCD_QUEUE_CONFIG_CMD), 1311 0); 1312 mvm->sta_remove_requires_queue_remove = 1313 trans_cfg.queue_alloc_cmd_ver > 0; 1314 1315 mvm->mld_api_is_used = iwl_mvm_has_mld_api(mvm->fw); 1316 1317 /* Configure transport layer */ 1318 iwl_trans_configure(mvm->trans, &trans_cfg); 1319 1320 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1321 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1322 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1323 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1324 sizeof(trans->dbg.conf_tlv)); 1325 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1326 1327 trans->iml = mvm->fw->iml; 1328 trans->iml_len = mvm->fw->iml_len; 1329 1330 /* set up notification wait support */ 1331 iwl_notification_wait_init(&mvm->notif_wait); 1332 1333 /* Init phy db */ 1334 mvm->phy_db = iwl_phy_db_init(trans); 1335 if (!mvm->phy_db) { 1336 IWL_ERR(mvm, "Cannot init phy_db\n"); 1337 goto out_free; 1338 } 1339 1340 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1341 mvm->trans->name, mvm->trans->hw_rev); 1342 1343 if (iwlwifi_mod_params.nvm_file) 1344 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1345 else 1346 IWL_DEBUG_EEPROM(mvm->trans->dev, 1347 "working without external nvm file\n"); 1348 1349 scan_size = iwl_mvm_scan_size(mvm); 1350 1351 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1352 if (!mvm->scan_cmd) 1353 goto out_free; 1354 mvm->scan_cmd_size = scan_size; 1355 1356 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1357 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1358 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1359 1360 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1361 mvm->last_ebs_successful = true; 1362 1363 min_backoff = iwl_mvm_min_backoff(mvm); 1364 iwl_mvm_thermal_initialize(mvm, min_backoff); 1365 1366 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1367 memset(&mvm->rx_stats_v3, 0, 1368 sizeof(struct mvm_statistics_rx_v3)); 1369 else 1370 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1371 1372 iwl_mvm_ftm_initiator_smooth_config(mvm); 1373 1374 iwl_mvm_init_time_sync(&mvm->time_sync); 1375 1376 mvm->debugfs_dir = dbgfs_dir; 1377 1378 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1379 1380 iwl_mvm_mei_scan_filter_init(&mvm->mei_scan_filter); 1381 1382 if (iwl_mvm_start_get_nvm(mvm)) { 1383 /* 1384 * Getting NVM failed while CSME is the owner, but we are 1385 * registered to MEI, we'll get the NVM later when it'll be 1386 * possible to get it from CSME. 1387 */ 1388 if (trans->csme_own && mvm->mei_registered) 1389 return op_mode; 1390 1391 goto out_thermal_exit; 1392 } 1393 1394 1395 if (iwl_mvm_start_post_nvm(mvm)) 1396 goto out_thermal_exit; 1397 1398 return op_mode; 1399 1400 out_thermal_exit: 1401 iwl_mvm_thermal_exit(mvm); 1402 if (mvm->mei_registered) { 1403 iwl_mei_start_unregister(); 1404 iwl_mei_unregister_complete(); 1405 } 1406 out_free: 1407 iwl_fw_flush_dumps(&mvm->fwrt); 1408 iwl_fw_runtime_free(&mvm->fwrt); 1409 1410 if (iwlmvm_mod_params.init_dbg) 1411 return op_mode; 1412 iwl_phy_db_free(mvm->phy_db); 1413 kfree(mvm->scan_cmd); 1414 iwl_trans_op_mode_leave(trans); 1415 1416 ieee80211_free_hw(mvm->hw); 1417 return NULL; 1418 } 1419 1420 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1421 { 1422 lockdep_assert_held(&mvm->mutex); 1423 1424 iwl_fw_cancel_timestamp(&mvm->fwrt); 1425 1426 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1427 1428 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1429 iwl_trans_stop_device(mvm->trans); 1430 iwl_free_fw_paging(&mvm->fwrt); 1431 iwl_fw_dump_conf_clear(&mvm->fwrt); 1432 iwl_mvm_mei_device_state(mvm, false); 1433 } 1434 1435 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1436 { 1437 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1438 int i; 1439 1440 if (mvm->mei_registered) { 1441 rtnl_lock(); 1442 iwl_mei_set_netdev(NULL); 1443 rtnl_unlock(); 1444 iwl_mei_start_unregister(); 1445 } 1446 1447 /* 1448 * After we unregister from mei, the worker can't be scheduled 1449 * anymore. 1450 */ 1451 cancel_work_sync(&mvm->sap_connected_wk); 1452 1453 iwl_mvm_leds_exit(mvm); 1454 1455 iwl_mvm_thermal_exit(mvm); 1456 1457 /* 1458 * If we couldn't get ownership on the device and we couldn't 1459 * get the NVM from CSME, we haven't registered to mac80211. 1460 * In that case, we didn't fail op_mode_start, because we are 1461 * waiting for CSME to allow us to get the NVM to register to 1462 * mac80211. If that didn't happen, we haven't registered to 1463 * mac80211, hence the if below. 1464 */ 1465 if (mvm->hw_registered) 1466 ieee80211_unregister_hw(mvm->hw); 1467 1468 kfree(mvm->scan_cmd); 1469 kfree(mvm->mcast_filter_cmd); 1470 mvm->mcast_filter_cmd = NULL; 1471 1472 kfree(mvm->error_recovery_buf); 1473 mvm->error_recovery_buf = NULL; 1474 1475 iwl_mvm_ptp_remove(mvm); 1476 1477 iwl_trans_op_mode_leave(mvm->trans); 1478 1479 iwl_phy_db_free(mvm->phy_db); 1480 mvm->phy_db = NULL; 1481 1482 kfree(mvm->nvm_data); 1483 kfree(mvm->mei_nvm_data); 1484 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1485 kfree(mvm->temp_nvm_data); 1486 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1487 kfree(mvm->nvm_sections[i].data); 1488 1489 cancel_delayed_work_sync(&mvm->tcm.work); 1490 1491 iwl_fw_runtime_free(&mvm->fwrt); 1492 mutex_destroy(&mvm->mutex); 1493 1494 if (mvm->mei_registered) 1495 iwl_mei_unregister_complete(); 1496 1497 ieee80211_free_hw(mvm->hw); 1498 } 1499 1500 struct iwl_async_handler_entry { 1501 struct list_head list; 1502 struct iwl_rx_cmd_buffer rxb; 1503 enum iwl_rx_handler_context context; 1504 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1505 }; 1506 1507 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1508 { 1509 struct iwl_async_handler_entry *entry, *tmp; 1510 1511 spin_lock_bh(&mvm->async_handlers_lock); 1512 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1513 iwl_free_rxb(&entry->rxb); 1514 list_del(&entry->list); 1515 kfree(entry); 1516 } 1517 spin_unlock_bh(&mvm->async_handlers_lock); 1518 } 1519 1520 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1521 { 1522 struct iwl_mvm *mvm = 1523 container_of(wk, struct iwl_mvm, async_handlers_wk); 1524 struct iwl_async_handler_entry *entry, *tmp; 1525 LIST_HEAD(local_list); 1526 1527 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1528 1529 /* 1530 * Sync with Rx path with a lock. Remove all the entries from this list, 1531 * add them to a local one (lock free), and then handle them. 1532 */ 1533 spin_lock_bh(&mvm->async_handlers_lock); 1534 list_splice_init(&mvm->async_handlers_list, &local_list); 1535 spin_unlock_bh(&mvm->async_handlers_lock); 1536 1537 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1538 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1539 mutex_lock(&mvm->mutex); 1540 entry->fn(mvm, &entry->rxb); 1541 iwl_free_rxb(&entry->rxb); 1542 list_del(&entry->list); 1543 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1544 mutex_unlock(&mvm->mutex); 1545 kfree(entry); 1546 } 1547 } 1548 1549 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1550 struct iwl_rx_packet *pkt) 1551 { 1552 struct iwl_fw_dbg_trigger_tlv *trig; 1553 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1554 int i; 1555 1556 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1557 FW_DBG_TRIGGER_FW_NOTIF); 1558 if (!trig) 1559 return; 1560 1561 cmds_trig = (void *)trig->data; 1562 1563 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1564 /* don't collect on CMD 0 */ 1565 if (!cmds_trig->cmds[i].cmd_id) 1566 break; 1567 1568 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1569 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1570 continue; 1571 1572 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1573 "CMD 0x%02x.%02x received", 1574 pkt->hdr.group_id, pkt->hdr.cmd); 1575 break; 1576 } 1577 } 1578 1579 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1580 struct iwl_rx_cmd_buffer *rxb, 1581 struct iwl_rx_packet *pkt) 1582 { 1583 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1584 int i; 1585 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1586 1587 iwl_dbg_tlv_time_point(&mvm->fwrt, 1588 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1589 iwl_mvm_rx_check_trigger(mvm, pkt); 1590 1591 /* 1592 * Do the notification wait before RX handlers so 1593 * even if the RX handler consumes the RXB we have 1594 * access to it in the notification wait entry. 1595 */ 1596 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1597 1598 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1599 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1600 struct iwl_async_handler_entry *entry; 1601 1602 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1603 continue; 1604 1605 if (unlikely(pkt_len < rx_h->min_size)) 1606 return; 1607 1608 if (rx_h->context == RX_HANDLER_SYNC) { 1609 rx_h->fn(mvm, rxb); 1610 return; 1611 } 1612 1613 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1614 /* we can't do much... */ 1615 if (!entry) 1616 return; 1617 1618 entry->rxb._page = rxb_steal_page(rxb); 1619 entry->rxb._offset = rxb->_offset; 1620 entry->rxb._rx_page_order = rxb->_rx_page_order; 1621 entry->fn = rx_h->fn; 1622 entry->context = rx_h->context; 1623 spin_lock(&mvm->async_handlers_lock); 1624 list_add_tail(&entry->list, &mvm->async_handlers_list); 1625 spin_unlock(&mvm->async_handlers_lock); 1626 schedule_work(&mvm->async_handlers_wk); 1627 break; 1628 } 1629 } 1630 1631 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1632 struct napi_struct *napi, 1633 struct iwl_rx_cmd_buffer *rxb) 1634 { 1635 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1636 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1637 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1638 1639 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1640 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1641 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1642 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1643 else 1644 iwl_mvm_rx_common(mvm, rxb, pkt); 1645 } 1646 1647 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1648 struct napi_struct *napi, 1649 struct iwl_rx_cmd_buffer *rxb) 1650 { 1651 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1652 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1653 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1654 1655 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1656 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1657 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1658 RX_QUEUES_NOTIFICATION))) 1659 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1660 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1661 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1662 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1663 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1664 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1665 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1666 else 1667 iwl_mvm_rx_common(mvm, rxb, pkt); 1668 } 1669 1670 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1671 const struct iwl_device_cmd *cmd) 1672 { 1673 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1674 1675 /* 1676 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1677 * commands that need to block the Tx queues. 1678 */ 1679 iwl_trans_block_txq_ptrs(mvm->trans, false); 1680 } 1681 1682 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1683 { 1684 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1685 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1686 } 1687 1688 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1689 int hw_queue, bool start) 1690 { 1691 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1692 struct ieee80211_sta *sta; 1693 struct ieee80211_txq *txq; 1694 struct iwl_mvm_txq *mvmtxq; 1695 int i; 1696 unsigned long tid_bitmap; 1697 struct iwl_mvm_sta *mvmsta; 1698 u8 sta_id; 1699 1700 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1701 mvm->tvqm_info[hw_queue].sta_id : 1702 mvm->queue_info[hw_queue].ra_sta_id; 1703 1704 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1705 return; 1706 1707 rcu_read_lock(); 1708 1709 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1710 if (IS_ERR_OR_NULL(sta)) 1711 goto out; 1712 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1713 1714 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1715 if (!start) 1716 ieee80211_stop_queues(mvm->hw); 1717 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1718 ieee80211_wake_queues(mvm->hw); 1719 1720 goto out; 1721 } 1722 1723 if (iwl_mvm_has_new_tx_api(mvm)) { 1724 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1725 1726 tid_bitmap = BIT(tid); 1727 } else { 1728 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1729 } 1730 1731 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1732 int tid = i; 1733 1734 if (tid == IWL_MAX_TID_COUNT) 1735 tid = IEEE80211_NUM_TIDS; 1736 1737 txq = sta->txq[tid]; 1738 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1739 if (start) 1740 clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1741 else 1742 set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1743 1744 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1745 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1746 } 1747 1748 out: 1749 rcu_read_unlock(); 1750 } 1751 1752 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1753 { 1754 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1755 } 1756 1757 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1758 { 1759 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1760 } 1761 1762 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1763 { 1764 bool state = iwl_mvm_is_radio_killed(mvm); 1765 1766 if (state) 1767 wake_up(&mvm->rx_sync_waitq); 1768 1769 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1770 } 1771 1772 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1773 { 1774 if (state) 1775 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1776 else 1777 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1778 1779 iwl_mvm_set_rfkill_state(mvm); 1780 } 1781 1782 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1783 { 1784 return rcu_dereference_protected(mvm->csme_conn_info, 1785 lockdep_is_held(&mvm->mutex)); 1786 } 1787 1788 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1789 { 1790 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1791 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1792 bool unified = iwl_mvm_has_unified_ucode(mvm); 1793 1794 if (state) 1795 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1796 else 1797 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1798 1799 iwl_mvm_set_rfkill_state(mvm); 1800 1801 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1802 if (rfkill_safe_init_done) 1803 iwl_abort_notification_waits(&mvm->notif_wait); 1804 1805 /* 1806 * Don't ask the transport to stop the firmware. We'll do it 1807 * after cfg80211 takes us down. 1808 */ 1809 if (unified) 1810 return false; 1811 1812 /* 1813 * Stop the device if we run OPERATIONAL firmware or if we are in the 1814 * middle of the calibrations. 1815 */ 1816 return state && rfkill_safe_init_done; 1817 } 1818 1819 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1820 { 1821 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1822 struct ieee80211_tx_info *info; 1823 1824 info = IEEE80211_SKB_CB(skb); 1825 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1826 ieee80211_free_txskb(mvm->hw, skb); 1827 } 1828 1829 struct iwl_mvm_reprobe { 1830 struct device *dev; 1831 struct work_struct work; 1832 }; 1833 1834 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1835 { 1836 struct iwl_mvm_reprobe *reprobe; 1837 1838 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1839 if (device_reprobe(reprobe->dev)) 1840 dev_err(reprobe->dev, "reprobe failed!\n"); 1841 put_device(reprobe->dev); 1842 kfree(reprobe); 1843 module_put(THIS_MODULE); 1844 } 1845 1846 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1847 { 1848 iwl_abort_notification_waits(&mvm->notif_wait); 1849 iwl_dbg_tlv_del_timers(mvm->trans); 1850 1851 /* 1852 * This is a bit racy, but worst case we tell mac80211 about 1853 * a stopped/aborted scan when that was already done which 1854 * is not a problem. It is necessary to abort any os scan 1855 * here because mac80211 requires having the scan cleared 1856 * before restarting. 1857 * We'll reset the scan_status to NONE in restart cleanup in 1858 * the next start() call from mac80211. If restart isn't called 1859 * (no fw restart) scan status will stay busy. 1860 */ 1861 iwl_mvm_report_scan_aborted(mvm); 1862 1863 /* 1864 * If we're restarting already, don't cycle restarts. 1865 * If INIT fw asserted, it will likely fail again. 1866 * If WoWLAN fw asserted, don't restart either, mac80211 1867 * can't recover this since we're already half suspended. 1868 */ 1869 if (!mvm->fw_restart && fw_error) { 1870 iwl_fw_error_collect(&mvm->fwrt, false); 1871 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1872 &mvm->status)) { 1873 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1874 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1875 struct iwl_mvm_reprobe *reprobe; 1876 1877 IWL_ERR(mvm, 1878 "Firmware error during reconfiguration - reprobe!\n"); 1879 1880 /* 1881 * get a module reference to avoid doing this while unloading 1882 * anyway and to avoid scheduling a work with code that's 1883 * being removed. 1884 */ 1885 if (!try_module_get(THIS_MODULE)) { 1886 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1887 return; 1888 } 1889 1890 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1891 if (!reprobe) { 1892 module_put(THIS_MODULE); 1893 return; 1894 } 1895 reprobe->dev = get_device(mvm->trans->dev); 1896 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1897 schedule_work(&reprobe->work); 1898 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1899 &mvm->status)) { 1900 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1901 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1902 mvm->hw_registered && 1903 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1904 /* This should be first thing before trying to collect any 1905 * data to avoid endless loops if any HW error happens while 1906 * collecting debug data. 1907 */ 1908 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1909 1910 if (mvm->fw->ucode_capa.error_log_size) { 1911 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1912 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1913 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1914 1915 if (recover_buf) { 1916 mvm->error_recovery_buf = recover_buf; 1917 iwl_trans_read_mem_bytes(mvm->trans, 1918 src_addr, 1919 recover_buf, 1920 src_size); 1921 } 1922 } 1923 1924 iwl_fw_error_collect(&mvm->fwrt, false); 1925 1926 if (fw_error && mvm->fw_restart > 0) { 1927 mvm->fw_restart--; 1928 ieee80211_restart_hw(mvm->hw); 1929 } else if (mvm->fwrt.trans->dbg.restart_required) { 1930 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1931 mvm->fwrt.trans->dbg.restart_required = FALSE; 1932 ieee80211_restart_hw(mvm->hw); 1933 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1934 ieee80211_restart_hw(mvm->hw); 1935 } 1936 } 1937 } 1938 1939 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1940 { 1941 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1942 1943 if (mvm->pldr_sync) 1944 return; 1945 1946 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1947 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1948 &mvm->status)) 1949 iwl_mvm_dump_nic_error_log(mvm); 1950 1951 if (sync) { 1952 iwl_fw_error_collect(&mvm->fwrt, true); 1953 /* 1954 * Currently, the only case for sync=true is during 1955 * shutdown, so just stop in this case. If/when that 1956 * changes, we need to be a bit smarter here. 1957 */ 1958 return; 1959 } 1960 1961 /* 1962 * If the firmware crashes while we're already considering it 1963 * to be dead then don't ask for a restart, that cannot do 1964 * anything useful anyway. 1965 */ 1966 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1967 return; 1968 1969 iwl_mvm_nic_restart(mvm, false); 1970 } 1971 1972 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1973 { 1974 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1975 1976 WARN_ON(1); 1977 iwl_mvm_nic_restart(mvm, true); 1978 } 1979 1980 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1981 enum iwl_fw_ini_time_point tp_id, 1982 union iwl_dbg_tlv_tp_data *tp_data) 1983 { 1984 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1985 1986 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1987 } 1988 1989 #define IWL_MVM_COMMON_OPS \ 1990 /* these could be differentiated */ \ 1991 .async_cb = iwl_mvm_async_cb, \ 1992 .queue_full = iwl_mvm_stop_sw_queue, \ 1993 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1994 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1995 .free_skb = iwl_mvm_free_skb, \ 1996 .nic_error = iwl_mvm_nic_error, \ 1997 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1998 .nic_config = iwl_mvm_nic_config, \ 1999 /* as we only register one, these MUST be common! */ \ 2000 .start = iwl_op_mode_mvm_start, \ 2001 .stop = iwl_op_mode_mvm_stop, \ 2002 .time_point = iwl_op_mode_mvm_time_point 2003 2004 static const struct iwl_op_mode_ops iwl_mvm_ops = { 2005 IWL_MVM_COMMON_OPS, 2006 .rx = iwl_mvm_rx, 2007 }; 2008 2009 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 2010 struct napi_struct *napi, 2011 struct iwl_rx_cmd_buffer *rxb, 2012 unsigned int queue) 2013 { 2014 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2015 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2016 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 2017 2018 if (unlikely(queue >= mvm->trans->num_rx_queues)) 2019 return; 2020 2021 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 2022 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 2023 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 2024 RX_QUEUES_NOTIFICATION))) 2025 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 2026 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 2027 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 2028 } 2029 2030 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 2031 IWL_MVM_COMMON_OPS, 2032 .rx = iwl_mvm_rx_mq, 2033 .rx_rss = iwl_mvm_rx_mq_rss, 2034 }; 2035