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(FW_GET_ITEM_CMD), 453 HCMD_NAME(TX_CMD), 454 HCMD_NAME(SCD_QUEUE_CFG), 455 HCMD_NAME(TXPATH_FLUSH), 456 HCMD_NAME(MGMT_MCAST_KEY), 457 HCMD_NAME(WEP_KEY), 458 HCMD_NAME(SHARED_MEM_CFG), 459 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 460 HCMD_NAME(MAC_CONTEXT_CMD), 461 HCMD_NAME(TIME_EVENT_CMD), 462 HCMD_NAME(TIME_EVENT_NOTIFICATION), 463 HCMD_NAME(BINDING_CONTEXT_CMD), 464 HCMD_NAME(TIME_QUOTA_CMD), 465 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 466 HCMD_NAME(LEDS_CMD), 467 HCMD_NAME(LQ_CMD), 468 HCMD_NAME(FW_PAGING_BLOCK_CMD), 469 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 470 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 471 HCMD_NAME(HOT_SPOT_CMD), 472 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 473 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 474 HCMD_NAME(BT_COEX_CI), 475 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION), 476 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION), 477 HCMD_NAME(PHY_CONFIGURATION_CMD), 478 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 479 HCMD_NAME(PHY_DB_CMD), 480 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 481 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 482 HCMD_NAME(POWER_TABLE_CMD), 483 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 484 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 485 HCMD_NAME(NVM_ACCESS_CMD), 486 HCMD_NAME(BEACON_NOTIFICATION), 487 HCMD_NAME(BEACON_TEMPLATE_CMD), 488 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 489 HCMD_NAME(BT_CONFIG), 490 HCMD_NAME(STATISTICS_CMD), 491 HCMD_NAME(STATISTICS_NOTIFICATION), 492 HCMD_NAME(EOSP_NOTIFICATION), 493 HCMD_NAME(REDUCE_TX_POWER_CMD), 494 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 495 HCMD_NAME(TDLS_CONFIG_CMD), 496 HCMD_NAME(MAC_PM_POWER_TABLE), 497 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 498 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 499 HCMD_NAME(RSS_CONFIG_CMD), 500 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 501 HCMD_NAME(REPLY_RX_PHY_CMD), 502 HCMD_NAME(REPLY_RX_MPDU_CMD), 503 HCMD_NAME(BAR_FRAME_RELEASE), 504 HCMD_NAME(FRAME_RELEASE), 505 HCMD_NAME(BA_NOTIF), 506 HCMD_NAME(MCC_UPDATE_CMD), 507 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 508 HCMD_NAME(MARKER_CMD), 509 HCMD_NAME(BT_PROFILE_NOTIFICATION), 510 HCMD_NAME(MCAST_FILTER_CMD), 511 HCMD_NAME(REPLY_SF_CFG_CMD), 512 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 513 HCMD_NAME(D3_CONFIG_CMD), 514 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 515 HCMD_NAME(OFFLOADS_QUERY_CMD), 516 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 517 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 518 HCMD_NAME(WOWLAN_PATTERNS), 519 HCMD_NAME(WOWLAN_CONFIGURATION), 520 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 521 HCMD_NAME(WOWLAN_TKIP_PARAM), 522 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 523 HCMD_NAME(WOWLAN_GET_STATUSES), 524 HCMD_NAME(SCAN_ITERATION_COMPLETE), 525 HCMD_NAME(D0I3_END_CMD), 526 HCMD_NAME(LTR_CONFIG), 527 HCMD_NAME(LDBG_CONFIG_CMD), 528 }; 529 530 /* Please keep this array *SORTED* by hex value. 531 * Access is done through binary search 532 */ 533 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 534 HCMD_NAME(SHARED_MEM_CFG_CMD), 535 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 536 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 537 HCMD_NAME(RFI_CONFIG_CMD), 538 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 539 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 540 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 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_mac_conf_names[] = { 547 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 548 HCMD_NAME(SESSION_PROTECTION_CMD), 549 HCMD_NAME(MAC_CONFIG_CMD), 550 HCMD_NAME(LINK_CONFIG_CMD), 551 HCMD_NAME(STA_CONFIG_CMD), 552 HCMD_NAME(AUX_STA_CMD), 553 HCMD_NAME(STA_REMOVE_CMD), 554 HCMD_NAME(STA_DISABLE_TX_CMD), 555 HCMD_NAME(SESSION_PROTECTION_NOTIF), 556 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 557 }; 558 559 /* Please keep this array *SORTED* by hex value. 560 * Access is done through binary search 561 */ 562 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 563 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 564 HCMD_NAME(CTDP_CONFIG_CMD), 565 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 566 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 567 HCMD_NAME(CT_KILL_NOTIFICATION), 568 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 569 }; 570 571 /* Please keep this array *SORTED* by hex value. 572 * Access is done through binary search 573 */ 574 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 575 HCMD_NAME(DQA_ENABLE_CMD), 576 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 577 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 578 HCMD_NAME(STA_HE_CTXT_CMD), 579 HCMD_NAME(RLC_CONFIG_CMD), 580 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 581 HCMD_NAME(TLC_MNG_CONFIG_CMD), 582 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 583 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 584 HCMD_NAME(SEC_KEY_CMD), 585 HCMD_NAME(MONITOR_NOTIF), 586 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 587 HCMD_NAME(STA_PM_NOTIF), 588 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 589 HCMD_NAME(RX_QUEUES_NOTIFICATION), 590 }; 591 592 /* Please keep this array *SORTED* by hex value. 593 * Access is done through binary search 594 */ 595 static const struct iwl_hcmd_names iwl_mvm_scan_names[] = { 596 HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF), 597 }; 598 599 /* Please keep this array *SORTED* by hex value. 600 * Access is done through binary search 601 */ 602 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 603 HCMD_NAME(TOF_RANGE_REQ_CMD), 604 HCMD_NAME(TOF_CONFIG_CMD), 605 HCMD_NAME(TOF_RANGE_ABORT_CMD), 606 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 607 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 608 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 609 HCMD_NAME(TOF_LC_NOTIF), 610 HCMD_NAME(TOF_RESPONDER_STATS), 611 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 612 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 613 }; 614 615 /* Please keep this array *SORTED* by hex value. 616 * Access is done through binary search 617 */ 618 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 619 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), 620 HCMD_NAME(WOWLAN_INFO_NOTIFICATION), 621 HCMD_NAME(D3_END_NOTIFICATION), 622 HCMD_NAME(STORED_BEACON_NTF), 623 }; 624 625 /* Please keep this array *SORTED* by hex value. 626 * Access is done through binary search 627 */ 628 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 629 HCMD_NAME(NVM_ACCESS_COMPLETE), 630 HCMD_NAME(NVM_GET_INFO), 631 HCMD_NAME(TAS_CONFIG), 632 }; 633 634 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 635 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 636 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 637 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 638 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 639 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 640 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 641 [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names), 642 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 643 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 644 [REGULATORY_AND_NVM_GROUP] = 645 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 646 }; 647 648 /* this forward declaration can avoid to export the function */ 649 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 650 651 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 652 { 653 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 654 u64 dflt_pwr_limit; 655 656 if (!backoff) 657 return 0; 658 659 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 660 661 while (backoff->pwr) { 662 if (dflt_pwr_limit >= backoff->pwr) 663 return backoff->backoff; 664 665 backoff++; 666 } 667 668 return 0; 669 } 670 671 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 672 { 673 struct iwl_mvm *mvm = 674 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 675 struct ieee80211_vif *tx_blocked_vif; 676 struct iwl_mvm_vif *mvmvif; 677 678 mutex_lock(&mvm->mutex); 679 680 tx_blocked_vif = 681 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 682 lockdep_is_held(&mvm->mutex)); 683 684 if (!tx_blocked_vif) 685 goto unlock; 686 687 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 688 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 689 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 690 unlock: 691 mutex_unlock(&mvm->mutex); 692 } 693 694 static void iwl_mvm_fwrt_dump_start(void *ctx) 695 { 696 struct iwl_mvm *mvm = ctx; 697 698 mutex_lock(&mvm->mutex); 699 } 700 701 static void iwl_mvm_fwrt_dump_end(void *ctx) 702 { 703 struct iwl_mvm *mvm = ctx; 704 705 mutex_unlock(&mvm->mutex); 706 } 707 708 static bool iwl_mvm_fwrt_fw_running(void *ctx) 709 { 710 return iwl_mvm_firmware_running(ctx); 711 } 712 713 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 714 { 715 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 716 int ret; 717 718 mutex_lock(&mvm->mutex); 719 ret = iwl_mvm_send_cmd(mvm, host_cmd); 720 mutex_unlock(&mvm->mutex); 721 722 return ret; 723 } 724 725 static bool iwl_mvm_d3_debug_enable(void *ctx) 726 { 727 return IWL_MVM_D3_DEBUG; 728 } 729 730 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 731 .dump_start = iwl_mvm_fwrt_dump_start, 732 .dump_end = iwl_mvm_fwrt_dump_end, 733 .fw_running = iwl_mvm_fwrt_fw_running, 734 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 735 .d3_debug_enable = iwl_mvm_d3_debug_enable, 736 }; 737 738 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 739 { 740 struct iwl_trans *trans = mvm->trans; 741 int ret; 742 743 if (trans->csme_own) { 744 if (WARN(!mvm->mei_registered, 745 "csme is owner, but we aren't registered to iwlmei\n")) 746 goto get_nvm_from_fw; 747 748 mvm->mei_nvm_data = iwl_mei_get_nvm(); 749 if (mvm->mei_nvm_data) { 750 /* 751 * mvm->mei_nvm_data is set and because of that, 752 * we'll load the NVM from the FW when we'll get 753 * ownership. 754 */ 755 mvm->nvm_data = 756 iwl_parse_mei_nvm_data(trans, trans->cfg, 757 mvm->mei_nvm_data, mvm->fw); 758 return 0; 759 } 760 761 IWL_ERR(mvm, 762 "Got a NULL NVM from CSME, trying to get it from the device\n"); 763 } 764 765 get_nvm_from_fw: 766 rtnl_lock(); 767 wiphy_lock(mvm->hw->wiphy); 768 mutex_lock(&mvm->mutex); 769 770 ret = iwl_trans_start_hw(mvm->trans); 771 if (ret) { 772 mutex_unlock(&mvm->mutex); 773 wiphy_unlock(mvm->hw->wiphy); 774 rtnl_unlock(); 775 return ret; 776 } 777 778 ret = iwl_run_init_mvm_ucode(mvm); 779 if (ret && ret != -ERFKILL) 780 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 781 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 782 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 783 ret = iwl_mvm_init_mcc(mvm); 784 } 785 786 if (!iwlmvm_mod_params.init_dbg || !ret) 787 iwl_mvm_stop_device(mvm); 788 789 mutex_unlock(&mvm->mutex); 790 wiphy_unlock(mvm->hw->wiphy); 791 rtnl_unlock(); 792 793 if (ret) 794 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 795 796 return ret; 797 } 798 799 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 800 { 801 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 802 int ret; 803 804 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 805 806 ret = iwl_mvm_mac_setup_register(mvm); 807 if (ret) 808 return ret; 809 810 mvm->hw_registered = true; 811 812 iwl_mvm_dbgfs_register(mvm); 813 814 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 815 mvm->mei_rfkill_blocked, 816 RFKILL_HARD_BLOCK_NOT_OWNER); 817 818 iwl_mvm_mei_set_sw_rfkill_state(mvm); 819 820 return 0; 821 } 822 823 struct iwl_mvm_frob_txf_data { 824 u8 *buf; 825 size_t buflen; 826 }; 827 828 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 829 struct ieee80211_vif *vif, 830 struct ieee80211_sta *sta, 831 struct ieee80211_key_conf *key, 832 void *data) 833 { 834 struct iwl_mvm_frob_txf_data *txf = data; 835 u8 keylen, match, matchend; 836 u8 *keydata; 837 size_t i; 838 839 switch (key->cipher) { 840 case WLAN_CIPHER_SUITE_CCMP: 841 keydata = key->key; 842 keylen = key->keylen; 843 break; 844 case WLAN_CIPHER_SUITE_WEP40: 845 case WLAN_CIPHER_SUITE_WEP104: 846 case WLAN_CIPHER_SUITE_TKIP: 847 /* 848 * WEP has short keys which might show up in the payload, 849 * and then you can deduce the key, so in this case just 850 * remove all FIFO data. 851 * For TKIP, we don't know the phase 2 keys here, so same. 852 */ 853 memset(txf->buf, 0xBB, txf->buflen); 854 return; 855 default: 856 return; 857 } 858 859 /* scan for key material and clear it out */ 860 match = 0; 861 for (i = 0; i < txf->buflen; i++) { 862 if (txf->buf[i] != keydata[match]) { 863 match = 0; 864 continue; 865 } 866 match++; 867 if (match == keylen) { 868 memset(txf->buf + i - keylen, 0xAA, keylen); 869 match = 0; 870 } 871 } 872 873 /* we're dealing with a FIFO, so check wrapped around data */ 874 matchend = match; 875 for (i = 0; match && i < keylen - match; i++) { 876 if (txf->buf[i] != keydata[match]) 877 break; 878 match++; 879 if (match == keylen) { 880 memset(txf->buf, 0xAA, i + 1); 881 memset(txf->buf + txf->buflen - matchend, 0xAA, 882 matchend); 883 break; 884 } 885 } 886 } 887 888 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 889 { 890 struct iwl_mvm_frob_txf_data txf = { 891 .buf = buf, 892 .buflen = buflen, 893 }; 894 struct iwl_mvm *mvm = ctx; 895 896 /* embedded key material exists only on old API */ 897 if (iwl_mvm_has_new_tx_api(mvm)) 898 return; 899 900 rcu_read_lock(); 901 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 902 rcu_read_unlock(); 903 } 904 905 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 906 { 907 /* we only use wide headers for commands */ 908 struct iwl_cmd_header_wide *hdr = hcmd; 909 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 910 911 if (len < sizeof(hdr)) 912 return; 913 914 /* all the commands we care about are in LONG_GROUP */ 915 if (hdr->group_id != LONG_GROUP) 916 return; 917 918 switch (hdr->cmd) { 919 case WEP_KEY: 920 case WOWLAN_TKIP_PARAM: 921 case WOWLAN_KEK_KCK_MATERIAL: 922 case ADD_STA_KEY: 923 /* 924 * blank out everything here, easier than dealing 925 * with the various versions of the command 926 */ 927 frob_end = INT_MAX; 928 break; 929 case MGMT_MCAST_KEY: 930 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 931 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 932 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 933 934 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 935 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 936 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 937 break; 938 } 939 940 if (frob_start >= frob_end) 941 return; 942 943 if (frob_end > len) 944 frob_end = len; 945 946 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 947 } 948 949 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 950 { 951 const struct iwl_dump_exclude *excl; 952 struct iwl_mvm *mvm = ctx; 953 int i; 954 955 switch (mvm->fwrt.cur_fw_img) { 956 case IWL_UCODE_INIT: 957 default: 958 /* not relevant */ 959 return; 960 case IWL_UCODE_REGULAR: 961 case IWL_UCODE_REGULAR_USNIFFER: 962 excl = mvm->fw->dump_excl; 963 break; 964 case IWL_UCODE_WOWLAN: 965 excl = mvm->fw->dump_excl_wowlan; 966 break; 967 } 968 969 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 970 sizeof(mvm->fw->dump_excl_wowlan)); 971 972 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 973 u32 start, end; 974 975 if (!excl[i].addr || !excl[i].size) 976 continue; 977 978 start = excl[i].addr; 979 end = start + excl[i].size; 980 981 if (end <= mem_addr || start >= mem_addr + buflen) 982 continue; 983 984 if (start < mem_addr) 985 start = mem_addr; 986 987 if (end > mem_addr + buflen) 988 end = mem_addr + buflen; 989 990 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 991 } 992 } 993 994 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 995 .frob_txf = iwl_mvm_frob_txf, 996 .frob_hcmd = iwl_mvm_frob_hcmd, 997 .frob_mem = iwl_mvm_frob_mem, 998 }; 999 1000 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 1001 { 1002 struct iwl_mvm *mvm = priv; 1003 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 1004 1005 /* 1006 * This is protected by the guarantee that this function will not be 1007 * called twice on two different threads 1008 */ 1009 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 1010 1011 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 1012 if (!curr_conn_info) 1013 return; 1014 1015 curr_conn_info->conn_info = *conn_info; 1016 1017 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 1018 1019 if (prev_conn_info) 1020 kfree_rcu(prev_conn_info, rcu_head); 1021 } 1022 1023 static void iwl_mvm_mei_rfkill(void *priv, bool blocked, 1024 bool csme_taking_ownership) 1025 { 1026 struct iwl_mvm *mvm = priv; 1027 1028 if (blocked && !csme_taking_ownership) 1029 return; 1030 1031 mvm->mei_rfkill_blocked = blocked; 1032 if (!mvm->hw_registered) 1033 return; 1034 1035 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 1036 mvm->mei_rfkill_blocked, 1037 RFKILL_HARD_BLOCK_NOT_OWNER); 1038 } 1039 1040 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 1041 { 1042 struct iwl_mvm *mvm = priv; 1043 1044 if (!mvm->hw_registered || !mvm->csme_vif) 1045 return; 1046 1047 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 1048 } 1049 1050 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1051 { 1052 struct iwl_mvm *mvm = 1053 container_of(wk, struct iwl_mvm, sap_connected_wk); 1054 int ret; 1055 1056 ret = iwl_mvm_start_get_nvm(mvm); 1057 if (ret) 1058 goto out_free; 1059 1060 ret = iwl_mvm_start_post_nvm(mvm); 1061 if (ret) 1062 goto out_free; 1063 1064 return; 1065 1066 out_free: 1067 IWL_ERR(mvm, "Couldn't get started...\n"); 1068 iwl_mei_start_unregister(); 1069 iwl_mei_unregister_complete(); 1070 iwl_fw_flush_dumps(&mvm->fwrt); 1071 iwl_mvm_thermal_exit(mvm); 1072 iwl_fw_runtime_free(&mvm->fwrt); 1073 iwl_phy_db_free(mvm->phy_db); 1074 kfree(mvm->scan_cmd); 1075 iwl_trans_op_mode_leave(mvm->trans); 1076 kfree(mvm->nvm_data); 1077 kfree(mvm->mei_nvm_data); 1078 1079 ieee80211_free_hw(mvm->hw); 1080 } 1081 1082 static void iwl_mvm_mei_sap_connected(void *priv) 1083 { 1084 struct iwl_mvm *mvm = priv; 1085 1086 if (!mvm->hw_registered) 1087 schedule_work(&mvm->sap_connected_wk); 1088 } 1089 1090 static void iwl_mvm_mei_nic_stolen(void *priv) 1091 { 1092 struct iwl_mvm *mvm = priv; 1093 1094 rtnl_lock(); 1095 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1096 rtnl_unlock(); 1097 } 1098 1099 static const struct iwl_mei_ops mei_ops = { 1100 .me_conn_status = iwl_mvm_me_conn_status, 1101 .rfkill = iwl_mvm_mei_rfkill, 1102 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1103 .sap_connected = iwl_mvm_mei_sap_connected, 1104 .nic_stolen = iwl_mvm_mei_nic_stolen, 1105 }; 1106 1107 static struct iwl_op_mode * 1108 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1109 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1110 { 1111 struct ieee80211_hw *hw; 1112 struct iwl_op_mode *op_mode; 1113 struct iwl_mvm *mvm; 1114 struct iwl_trans_config trans_cfg = {}; 1115 static const u8 no_reclaim_cmds[] = { 1116 TX_CMD, 1117 }; 1118 u32 max_agg; 1119 size_t scan_size; 1120 u32 min_backoff; 1121 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1122 1123 /* 1124 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1125 * index all over the driver - check that its value corresponds to the 1126 * array size. 1127 */ 1128 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1129 IWL_MVM_STATION_COUNT_MAX); 1130 1131 /******************************** 1132 * 1. Allocating and configuring HW data 1133 ********************************/ 1134 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1135 sizeof(struct iwl_mvm), 1136 iwl_mvm_has_mld_api(fw) ? &iwl_mvm_mld_hw_ops : 1137 &iwl_mvm_hw_ops); 1138 if (!hw) 1139 return NULL; 1140 1141 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 1142 max_agg = IEEE80211_MAX_AMPDU_BUF_EHT; 1143 else 1144 max_agg = IEEE80211_MAX_AMPDU_BUF_HE; 1145 1146 hw->max_rx_aggregation_subframes = max_agg; 1147 1148 if (cfg->max_tx_agg_size) 1149 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1150 else 1151 hw->max_tx_aggregation_subframes = max_agg; 1152 1153 op_mode = hw->priv; 1154 1155 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1156 mvm->dev = trans->dev; 1157 mvm->trans = trans; 1158 mvm->cfg = cfg; 1159 mvm->fw = fw; 1160 mvm->hw = hw; 1161 1162 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1163 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1164 1165 iwl_mvm_get_acpi_tables(mvm); 1166 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1167 iwl_uefi_get_step_table(trans); 1168 1169 mvm->init_status = 0; 1170 1171 if (iwl_mvm_has_new_rx_api(mvm)) { 1172 op_mode->ops = &iwl_mvm_ops_mq; 1173 trans->rx_mpdu_cmd_hdr_size = 1174 (trans->trans_cfg->device_family >= 1175 IWL_DEVICE_FAMILY_AX210) ? 1176 sizeof(struct iwl_rx_mpdu_desc) : 1177 IWL_RX_DESC_SIZE_V1; 1178 } else { 1179 op_mode->ops = &iwl_mvm_ops; 1180 trans->rx_mpdu_cmd_hdr_size = 1181 sizeof(struct iwl_rx_mpdu_res_start); 1182 1183 if (WARN_ON(trans->num_rx_queues > 1)) 1184 goto out_free; 1185 } 1186 1187 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1188 1189 if (iwl_mvm_has_new_tx_api(mvm)) { 1190 /* 1191 * If we have the new TX/queue allocation API initialize them 1192 * all to invalid numbers. We'll rewrite the ones that we need 1193 * later, but that doesn't happen for all of them all of the 1194 * time (e.g. P2P Device is optional), and if a dynamic queue 1195 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1196 * iwl_mvm_is_static_queue() erroneously returns true, and we 1197 * might have things getting stuck. 1198 */ 1199 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1200 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1201 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1202 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1203 } else { 1204 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1205 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1206 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1207 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1208 } 1209 1210 mvm->sf_state = SF_UNINIT; 1211 if (iwl_mvm_has_unified_ucode(mvm)) 1212 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1213 else 1214 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1215 mvm->drop_bcn_ap_mode = true; 1216 1217 mutex_init(&mvm->mutex); 1218 spin_lock_init(&mvm->async_handlers_lock); 1219 INIT_LIST_HEAD(&mvm->time_event_list); 1220 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1221 INIT_LIST_HEAD(&mvm->async_handlers_list); 1222 spin_lock_init(&mvm->time_event_lock); 1223 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1224 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1225 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1226 1227 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1228 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1229 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1230 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1231 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1232 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1233 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1234 spin_lock_init(&mvm->add_stream_lock); 1235 1236 init_waitqueue_head(&mvm->rx_sync_waitq); 1237 1238 mvm->queue_sync_state = 0; 1239 1240 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1241 1242 spin_lock_init(&mvm->tcm.lock); 1243 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1244 mvm->tcm.ts = jiffies; 1245 mvm->tcm.ll_ts = jiffies; 1246 mvm->tcm.uapsd_nonagg_ts = jiffies; 1247 1248 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1249 1250 mvm->cmd_ver.range_resp = 1251 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1252 TOF_RANGE_RESPONSE_NOTIF, 5); 1253 /* we only support up to version 9 */ 1254 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1255 goto out_free; 1256 1257 /* 1258 * Populate the state variables that the transport layer needs 1259 * to know about. 1260 */ 1261 trans_cfg.op_mode = op_mode; 1262 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1263 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1264 1265 switch (iwlwifi_mod_params.amsdu_size) { 1266 case IWL_AMSDU_DEF: 1267 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1268 break; 1269 case IWL_AMSDU_4K: 1270 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1271 break; 1272 case IWL_AMSDU_8K: 1273 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1274 break; 1275 case IWL_AMSDU_12K: 1276 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1277 break; 1278 default: 1279 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1280 iwlwifi_mod_params.amsdu_size); 1281 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1282 } 1283 1284 trans->wide_cmd_header = true; 1285 trans_cfg.bc_table_dword = 1286 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1287 1288 trans_cfg.command_groups = iwl_mvm_groups; 1289 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1290 1291 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1292 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1293 trans_cfg.scd_set_active = true; 1294 1295 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1296 driver_data[2]); 1297 1298 /* Set a short watchdog for the command queue */ 1299 trans_cfg.cmd_q_wdg_timeout = 1300 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1301 1302 snprintf(mvm->hw->wiphy->fw_version, 1303 sizeof(mvm->hw->wiphy->fw_version), 1304 "%s", fw->fw_version); 1305 1306 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1307 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1308 1309 trans_cfg.queue_alloc_cmd_ver = 1310 iwl_fw_lookup_cmd_ver(mvm->fw, 1311 WIDE_ID(DATA_PATH_GROUP, 1312 SCD_QUEUE_CONFIG_CMD), 1313 0); 1314 mvm->sta_remove_requires_queue_remove = 1315 trans_cfg.queue_alloc_cmd_ver > 0; 1316 1317 mvm->mld_api_is_used = iwl_mvm_has_mld_api(mvm->fw); 1318 1319 /* Configure transport layer */ 1320 iwl_trans_configure(mvm->trans, &trans_cfg); 1321 1322 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1323 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1324 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1325 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1326 sizeof(trans->dbg.conf_tlv)); 1327 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1328 1329 trans->iml = mvm->fw->iml; 1330 trans->iml_len = mvm->fw->iml_len; 1331 1332 /* set up notification wait support */ 1333 iwl_notification_wait_init(&mvm->notif_wait); 1334 1335 /* Init phy db */ 1336 mvm->phy_db = iwl_phy_db_init(trans); 1337 if (!mvm->phy_db) { 1338 IWL_ERR(mvm, "Cannot init phy_db\n"); 1339 goto out_free; 1340 } 1341 1342 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1343 mvm->trans->name, mvm->trans->hw_rev); 1344 1345 if (iwlwifi_mod_params.nvm_file) 1346 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1347 else 1348 IWL_DEBUG_EEPROM(mvm->trans->dev, 1349 "working without external nvm file\n"); 1350 1351 scan_size = iwl_mvm_scan_size(mvm); 1352 1353 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1354 if (!mvm->scan_cmd) 1355 goto out_free; 1356 mvm->scan_cmd_size = scan_size; 1357 1358 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1359 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1360 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1361 1362 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1363 mvm->last_ebs_successful = true; 1364 1365 min_backoff = iwl_mvm_min_backoff(mvm); 1366 iwl_mvm_thermal_initialize(mvm, min_backoff); 1367 1368 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1369 memset(&mvm->rx_stats_v3, 0, 1370 sizeof(struct mvm_statistics_rx_v3)); 1371 else 1372 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1373 1374 iwl_mvm_ftm_initiator_smooth_config(mvm); 1375 1376 iwl_mvm_init_time_sync(&mvm->time_sync); 1377 1378 mvm->debugfs_dir = dbgfs_dir; 1379 1380 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1381 1382 iwl_mvm_mei_scan_filter_init(&mvm->mei_scan_filter); 1383 1384 if (iwl_mvm_start_get_nvm(mvm)) { 1385 /* 1386 * Getting NVM failed while CSME is the owner, but we are 1387 * registered to MEI, we'll get the NVM later when it'll be 1388 * possible to get it from CSME. 1389 */ 1390 if (trans->csme_own && mvm->mei_registered) 1391 return op_mode; 1392 1393 goto out_thermal_exit; 1394 } 1395 1396 1397 if (iwl_mvm_start_post_nvm(mvm)) 1398 goto out_thermal_exit; 1399 1400 return op_mode; 1401 1402 out_thermal_exit: 1403 iwl_mvm_thermal_exit(mvm); 1404 if (mvm->mei_registered) { 1405 iwl_mei_start_unregister(); 1406 iwl_mei_unregister_complete(); 1407 } 1408 out_free: 1409 iwl_fw_flush_dumps(&mvm->fwrt); 1410 iwl_fw_runtime_free(&mvm->fwrt); 1411 1412 if (iwlmvm_mod_params.init_dbg) 1413 return op_mode; 1414 iwl_phy_db_free(mvm->phy_db); 1415 kfree(mvm->scan_cmd); 1416 iwl_trans_op_mode_leave(trans); 1417 1418 ieee80211_free_hw(mvm->hw); 1419 return NULL; 1420 } 1421 1422 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1423 { 1424 lockdep_assert_held(&mvm->mutex); 1425 1426 iwl_fw_cancel_timestamp(&mvm->fwrt); 1427 1428 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1429 1430 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1431 iwl_trans_stop_device(mvm->trans); 1432 iwl_free_fw_paging(&mvm->fwrt); 1433 iwl_fw_dump_conf_clear(&mvm->fwrt); 1434 iwl_mvm_mei_device_state(mvm, false); 1435 } 1436 1437 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1438 { 1439 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1440 int i; 1441 1442 if (mvm->mei_registered) { 1443 rtnl_lock(); 1444 iwl_mei_set_netdev(NULL); 1445 rtnl_unlock(); 1446 iwl_mei_start_unregister(); 1447 } 1448 1449 /* 1450 * After we unregister from mei, the worker can't be scheduled 1451 * anymore. 1452 */ 1453 cancel_work_sync(&mvm->sap_connected_wk); 1454 1455 iwl_mvm_leds_exit(mvm); 1456 1457 iwl_mvm_thermal_exit(mvm); 1458 1459 /* 1460 * If we couldn't get ownership on the device and we couldn't 1461 * get the NVM from CSME, we haven't registered to mac80211. 1462 * In that case, we didn't fail op_mode_start, because we are 1463 * waiting for CSME to allow us to get the NVM to register to 1464 * mac80211. If that didn't happen, we haven't registered to 1465 * mac80211, hence the if below. 1466 */ 1467 if (mvm->hw_registered) 1468 ieee80211_unregister_hw(mvm->hw); 1469 1470 kfree(mvm->scan_cmd); 1471 kfree(mvm->mcast_filter_cmd); 1472 mvm->mcast_filter_cmd = NULL; 1473 1474 kfree(mvm->error_recovery_buf); 1475 mvm->error_recovery_buf = NULL; 1476 1477 iwl_mvm_ptp_remove(mvm); 1478 1479 iwl_trans_op_mode_leave(mvm->trans); 1480 1481 iwl_phy_db_free(mvm->phy_db); 1482 mvm->phy_db = NULL; 1483 1484 kfree(mvm->nvm_data); 1485 kfree(mvm->mei_nvm_data); 1486 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1487 kfree(mvm->temp_nvm_data); 1488 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1489 kfree(mvm->nvm_sections[i].data); 1490 1491 cancel_delayed_work_sync(&mvm->tcm.work); 1492 1493 iwl_fw_runtime_free(&mvm->fwrt); 1494 mutex_destroy(&mvm->mutex); 1495 1496 if (mvm->mei_registered) 1497 iwl_mei_unregister_complete(); 1498 1499 ieee80211_free_hw(mvm->hw); 1500 } 1501 1502 struct iwl_async_handler_entry { 1503 struct list_head list; 1504 struct iwl_rx_cmd_buffer rxb; 1505 enum iwl_rx_handler_context context; 1506 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1507 }; 1508 1509 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1510 { 1511 struct iwl_async_handler_entry *entry, *tmp; 1512 1513 spin_lock_bh(&mvm->async_handlers_lock); 1514 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1515 iwl_free_rxb(&entry->rxb); 1516 list_del(&entry->list); 1517 kfree(entry); 1518 } 1519 spin_unlock_bh(&mvm->async_handlers_lock); 1520 } 1521 1522 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1523 { 1524 struct iwl_mvm *mvm = 1525 container_of(wk, struct iwl_mvm, async_handlers_wk); 1526 struct iwl_async_handler_entry *entry, *tmp; 1527 LIST_HEAD(local_list); 1528 1529 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1530 1531 /* 1532 * Sync with Rx path with a lock. Remove all the entries from this list, 1533 * add them to a local one (lock free), and then handle them. 1534 */ 1535 spin_lock_bh(&mvm->async_handlers_lock); 1536 list_splice_init(&mvm->async_handlers_list, &local_list); 1537 spin_unlock_bh(&mvm->async_handlers_lock); 1538 1539 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1540 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1541 mutex_lock(&mvm->mutex); 1542 entry->fn(mvm, &entry->rxb); 1543 iwl_free_rxb(&entry->rxb); 1544 list_del(&entry->list); 1545 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1546 mutex_unlock(&mvm->mutex); 1547 kfree(entry); 1548 } 1549 } 1550 1551 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1552 struct iwl_rx_packet *pkt) 1553 { 1554 struct iwl_fw_dbg_trigger_tlv *trig; 1555 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1556 int i; 1557 1558 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1559 FW_DBG_TRIGGER_FW_NOTIF); 1560 if (!trig) 1561 return; 1562 1563 cmds_trig = (void *)trig->data; 1564 1565 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1566 /* don't collect on CMD 0 */ 1567 if (!cmds_trig->cmds[i].cmd_id) 1568 break; 1569 1570 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1571 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1572 continue; 1573 1574 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1575 "CMD 0x%02x.%02x received", 1576 pkt->hdr.group_id, pkt->hdr.cmd); 1577 break; 1578 } 1579 } 1580 1581 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1582 struct iwl_rx_cmd_buffer *rxb, 1583 struct iwl_rx_packet *pkt) 1584 { 1585 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1586 int i; 1587 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1588 1589 iwl_dbg_tlv_time_point(&mvm->fwrt, 1590 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1591 iwl_mvm_rx_check_trigger(mvm, pkt); 1592 1593 /* 1594 * Do the notification wait before RX handlers so 1595 * even if the RX handler consumes the RXB we have 1596 * access to it in the notification wait entry. 1597 */ 1598 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1599 1600 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1601 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1602 struct iwl_async_handler_entry *entry; 1603 1604 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1605 continue; 1606 1607 if (unlikely(pkt_len < rx_h->min_size)) 1608 return; 1609 1610 if (rx_h->context == RX_HANDLER_SYNC) { 1611 rx_h->fn(mvm, rxb); 1612 return; 1613 } 1614 1615 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1616 /* we can't do much... */ 1617 if (!entry) 1618 return; 1619 1620 entry->rxb._page = rxb_steal_page(rxb); 1621 entry->rxb._offset = rxb->_offset; 1622 entry->rxb._rx_page_order = rxb->_rx_page_order; 1623 entry->fn = rx_h->fn; 1624 entry->context = rx_h->context; 1625 spin_lock(&mvm->async_handlers_lock); 1626 list_add_tail(&entry->list, &mvm->async_handlers_list); 1627 spin_unlock(&mvm->async_handlers_lock); 1628 schedule_work(&mvm->async_handlers_wk); 1629 break; 1630 } 1631 } 1632 1633 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1634 struct napi_struct *napi, 1635 struct iwl_rx_cmd_buffer *rxb) 1636 { 1637 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1638 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1639 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1640 1641 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1642 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1643 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1644 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1645 else 1646 iwl_mvm_rx_common(mvm, rxb, pkt); 1647 } 1648 1649 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1650 struct napi_struct *napi, 1651 struct iwl_rx_cmd_buffer *rxb) 1652 { 1653 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1654 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1655 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1656 1657 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1658 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1659 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1660 RX_QUEUES_NOTIFICATION))) 1661 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1662 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1663 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1664 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1665 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1666 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1667 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1668 else 1669 iwl_mvm_rx_common(mvm, rxb, pkt); 1670 } 1671 1672 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1673 const struct iwl_device_cmd *cmd) 1674 { 1675 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1676 1677 /* 1678 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1679 * commands that need to block the Tx queues. 1680 */ 1681 iwl_trans_block_txq_ptrs(mvm->trans, false); 1682 } 1683 1684 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1685 { 1686 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1687 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1688 } 1689 1690 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1691 int hw_queue, bool start) 1692 { 1693 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1694 struct ieee80211_sta *sta; 1695 struct ieee80211_txq *txq; 1696 struct iwl_mvm_txq *mvmtxq; 1697 int i; 1698 unsigned long tid_bitmap; 1699 struct iwl_mvm_sta *mvmsta; 1700 u8 sta_id; 1701 1702 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1703 mvm->tvqm_info[hw_queue].sta_id : 1704 mvm->queue_info[hw_queue].ra_sta_id; 1705 1706 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1707 return; 1708 1709 rcu_read_lock(); 1710 1711 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1712 if (IS_ERR_OR_NULL(sta)) 1713 goto out; 1714 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1715 1716 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1717 if (!start) 1718 ieee80211_stop_queues(mvm->hw); 1719 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1720 ieee80211_wake_queues(mvm->hw); 1721 1722 goto out; 1723 } 1724 1725 if (iwl_mvm_has_new_tx_api(mvm)) { 1726 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1727 1728 tid_bitmap = BIT(tid); 1729 } else { 1730 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1731 } 1732 1733 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1734 int tid = i; 1735 1736 if (tid == IWL_MAX_TID_COUNT) 1737 tid = IEEE80211_NUM_TIDS; 1738 1739 txq = sta->txq[tid]; 1740 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1741 if (start) 1742 clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1743 else 1744 set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1745 1746 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1747 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1748 } 1749 1750 out: 1751 rcu_read_unlock(); 1752 } 1753 1754 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1755 { 1756 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1757 } 1758 1759 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1760 { 1761 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1762 } 1763 1764 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1765 { 1766 bool state = iwl_mvm_is_radio_killed(mvm); 1767 1768 if (state) 1769 wake_up(&mvm->rx_sync_waitq); 1770 1771 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1772 } 1773 1774 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1775 { 1776 if (state) 1777 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1778 else 1779 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1780 1781 iwl_mvm_set_rfkill_state(mvm); 1782 } 1783 1784 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1785 { 1786 return rcu_dereference_protected(mvm->csme_conn_info, 1787 lockdep_is_held(&mvm->mutex)); 1788 } 1789 1790 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1791 { 1792 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1793 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1794 bool unified = iwl_mvm_has_unified_ucode(mvm); 1795 1796 if (state) 1797 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1798 else 1799 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1800 1801 iwl_mvm_set_rfkill_state(mvm); 1802 1803 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1804 if (rfkill_safe_init_done) 1805 iwl_abort_notification_waits(&mvm->notif_wait); 1806 1807 /* 1808 * Don't ask the transport to stop the firmware. We'll do it 1809 * after cfg80211 takes us down. 1810 */ 1811 if (unified) 1812 return false; 1813 1814 /* 1815 * Stop the device if we run OPERATIONAL firmware or if we are in the 1816 * middle of the calibrations. 1817 */ 1818 return state && rfkill_safe_init_done; 1819 } 1820 1821 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1822 { 1823 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1824 struct ieee80211_tx_info *info; 1825 1826 info = IEEE80211_SKB_CB(skb); 1827 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1828 ieee80211_free_txskb(mvm->hw, skb); 1829 } 1830 1831 struct iwl_mvm_reprobe { 1832 struct device *dev; 1833 struct work_struct work; 1834 }; 1835 1836 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1837 { 1838 struct iwl_mvm_reprobe *reprobe; 1839 1840 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1841 if (device_reprobe(reprobe->dev)) 1842 dev_err(reprobe->dev, "reprobe failed!\n"); 1843 put_device(reprobe->dev); 1844 kfree(reprobe); 1845 module_put(THIS_MODULE); 1846 } 1847 1848 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1849 { 1850 iwl_abort_notification_waits(&mvm->notif_wait); 1851 iwl_dbg_tlv_del_timers(mvm->trans); 1852 1853 /* 1854 * This is a bit racy, but worst case we tell mac80211 about 1855 * a stopped/aborted scan when that was already done which 1856 * is not a problem. It is necessary to abort any os scan 1857 * here because mac80211 requires having the scan cleared 1858 * before restarting. 1859 * We'll reset the scan_status to NONE in restart cleanup in 1860 * the next start() call from mac80211. If restart isn't called 1861 * (no fw restart) scan status will stay busy. 1862 */ 1863 iwl_mvm_report_scan_aborted(mvm); 1864 1865 /* 1866 * If we're restarting already, don't cycle restarts. 1867 * If INIT fw asserted, it will likely fail again. 1868 * If WoWLAN fw asserted, don't restart either, mac80211 1869 * can't recover this since we're already half suspended. 1870 */ 1871 if (!mvm->fw_restart && fw_error) { 1872 iwl_fw_error_collect(&mvm->fwrt, false); 1873 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1874 &mvm->status)) { 1875 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1876 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1877 struct iwl_mvm_reprobe *reprobe; 1878 1879 IWL_ERR(mvm, 1880 "Firmware error during reconfiguration - reprobe!\n"); 1881 1882 /* 1883 * get a module reference to avoid doing this while unloading 1884 * anyway and to avoid scheduling a work with code that's 1885 * being removed. 1886 */ 1887 if (!try_module_get(THIS_MODULE)) { 1888 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1889 return; 1890 } 1891 1892 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1893 if (!reprobe) { 1894 module_put(THIS_MODULE); 1895 return; 1896 } 1897 reprobe->dev = get_device(mvm->trans->dev); 1898 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1899 schedule_work(&reprobe->work); 1900 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1901 &mvm->status)) { 1902 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1903 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1904 mvm->hw_registered && 1905 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1906 /* This should be first thing before trying to collect any 1907 * data to avoid endless loops if any HW error happens while 1908 * collecting debug data. 1909 */ 1910 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1911 1912 if (mvm->fw->ucode_capa.error_log_size) { 1913 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1914 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1915 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1916 1917 if (recover_buf) { 1918 mvm->error_recovery_buf = recover_buf; 1919 iwl_trans_read_mem_bytes(mvm->trans, 1920 src_addr, 1921 recover_buf, 1922 src_size); 1923 } 1924 } 1925 1926 iwl_fw_error_collect(&mvm->fwrt, false); 1927 1928 if (fw_error && mvm->fw_restart > 0) { 1929 mvm->fw_restart--; 1930 ieee80211_restart_hw(mvm->hw); 1931 } else if (mvm->fwrt.trans->dbg.restart_required) { 1932 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1933 mvm->fwrt.trans->dbg.restart_required = FALSE; 1934 ieee80211_restart_hw(mvm->hw); 1935 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1936 ieee80211_restart_hw(mvm->hw); 1937 } 1938 } 1939 } 1940 1941 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1942 { 1943 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1944 1945 if (mvm->pldr_sync) 1946 return; 1947 1948 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1949 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1950 &mvm->status)) 1951 iwl_mvm_dump_nic_error_log(mvm); 1952 1953 if (sync) { 1954 iwl_fw_error_collect(&mvm->fwrt, true); 1955 /* 1956 * Currently, the only case for sync=true is during 1957 * shutdown, so just stop in this case. If/when that 1958 * changes, we need to be a bit smarter here. 1959 */ 1960 return; 1961 } 1962 1963 /* 1964 * If the firmware crashes while we're already considering it 1965 * to be dead then don't ask for a restart, that cannot do 1966 * anything useful anyway. 1967 */ 1968 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1969 return; 1970 1971 iwl_mvm_nic_restart(mvm, false); 1972 } 1973 1974 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1975 { 1976 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1977 1978 WARN_ON(1); 1979 iwl_mvm_nic_restart(mvm, true); 1980 } 1981 1982 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1983 enum iwl_fw_ini_time_point tp_id, 1984 union iwl_dbg_tlv_tp_data *tp_data) 1985 { 1986 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1987 1988 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1989 } 1990 1991 #define IWL_MVM_COMMON_OPS \ 1992 /* these could be differentiated */ \ 1993 .async_cb = iwl_mvm_async_cb, \ 1994 .queue_full = iwl_mvm_stop_sw_queue, \ 1995 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1996 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1997 .free_skb = iwl_mvm_free_skb, \ 1998 .nic_error = iwl_mvm_nic_error, \ 1999 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 2000 .nic_config = iwl_mvm_nic_config, \ 2001 /* as we only register one, these MUST be common! */ \ 2002 .start = iwl_op_mode_mvm_start, \ 2003 .stop = iwl_op_mode_mvm_stop, \ 2004 .time_point = iwl_op_mode_mvm_time_point 2005 2006 static const struct iwl_op_mode_ops iwl_mvm_ops = { 2007 IWL_MVM_COMMON_OPS, 2008 .rx = iwl_mvm_rx, 2009 }; 2010 2011 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 2012 struct napi_struct *napi, 2013 struct iwl_rx_cmd_buffer *rxb, 2014 unsigned int queue) 2015 { 2016 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2017 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2018 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 2019 2020 if (unlikely(queue >= mvm->trans->num_rx_queues)) 2021 return; 2022 2023 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 2024 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 2025 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 2026 RX_QUEUES_NOTIFICATION))) 2027 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 2028 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 2029 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 2030 } 2031 2032 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 2033 IWL_MVM_COMMON_OPS, 2034 .rx = iwl_mvm_rx_mq, 2035 .rx_rss = iwl_mvm_rx_mq_rss, 2036 }; 2037