1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #if defined(__FreeBSD__) 8 #define LINUXKPI_PARAM_PREFIX iwlwifi_mvm_ 9 #endif 10 #include <linux/module.h> 11 #include <linux/rtnetlink.h> 12 #include <linux/vmalloc.h> 13 #include <net/mac80211.h> 14 15 #include "fw/notif-wait.h" 16 #include "iwl-trans.h" 17 #include "iwl-op-mode.h" 18 #include "fw/img.h" 19 #include "iwl-debug.h" 20 #include "iwl-drv.h" 21 #include "iwl-modparams.h" 22 #include "mvm.h" 23 #include "iwl-phy-db.h" 24 #include "iwl-eeprom-parse.h" 25 #include "iwl-csr.h" 26 #include "iwl-io.h" 27 #include "iwl-prph.h" 28 #include "rs.h" 29 #include "fw/api/scan.h" 30 #include "fw/api/rfi.h" 31 #include "time-event.h" 32 #include "fw-api.h" 33 #include "fw/acpi.h" 34 #include "fw/uefi.h" 35 #include "time-sync.h" 36 37 #if defined(__linux__) 38 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 39 MODULE_LICENSE("GPL"); 40 #elif defined(__FreeBSD__) 41 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN/AC/AX based driver for FreeBSD" 42 MODULE_LICENSE("BSD"); 43 #endif 44 MODULE_DESCRIPTION(DRV_DESCRIPTION); 45 MODULE_IMPORT_NS(IWLWIFI); 46 47 static const struct iwl_op_mode_ops iwl_mvm_ops; 48 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 49 50 struct iwl_mvm_mod_params iwlmvm_mod_params = { 51 #if defined(__FreeBSD__) 52 .power_scheme = IWL_POWER_SCHEME_CAM, /* disable default PS */ 53 #else 54 .power_scheme = IWL_POWER_SCHEME_BPS, 55 #endif 56 /* rest of fields are 0 by default */ 57 }; 58 59 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 60 MODULE_PARM_DESC(init_dbg, 61 "set to true to debug an ASSERT in INIT fw (default: false"); 62 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 63 MODULE_PARM_DESC(power_scheme, 64 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 65 66 /* 67 * module init and exit functions 68 */ 69 static int __init iwl_mvm_init(void) 70 { 71 int ret; 72 73 ret = iwl_mvm_rate_control_register(); 74 if (ret) { 75 pr_err("Unable to register rate control algorithm: %d\n", ret); 76 return ret; 77 } 78 79 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 80 if (ret) 81 pr_err("Unable to register MVM op_mode: %d\n", ret); 82 83 return ret; 84 } 85 #if defined(__linux__) 86 module_init(iwl_mvm_init); 87 #elif defined(__FreeBSD__) 88 module_init_order(iwl_mvm_init, SI_ORDER_SECOND); 89 #endif 90 91 static void __exit iwl_mvm_exit(void) 92 { 93 iwl_opmode_deregister("iwlmvm"); 94 iwl_mvm_rate_control_unregister(); 95 } 96 module_exit(iwl_mvm_exit); 97 98 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 99 { 100 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 101 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 102 u32 reg_val; 103 u32 phy_config = iwl_mvm_get_phy_config(mvm); 104 105 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 106 FW_PHY_CFG_RADIO_TYPE_POS; 107 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 108 FW_PHY_CFG_RADIO_STEP_POS; 109 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 110 FW_PHY_CFG_RADIO_DASH_POS; 111 112 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 113 radio_cfg_step, radio_cfg_dash); 114 115 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 116 return; 117 118 /* SKU control */ 119 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); 120 121 /* radio configuration */ 122 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 123 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 124 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 125 126 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 127 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 128 129 /* 130 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 131 * sampling, and shouldn't be set to any non-zero value. 132 * The same is supposed to be true of the other HW, but unsetting 133 * them (such as the 7260) causes automatic tests to fail on seemingly 134 * unrelated errors. Need to further investigate this, but for now 135 * we'll separate cases. 136 */ 137 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 138 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 139 140 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 141 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 142 143 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 144 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | 145 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 146 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 147 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 148 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 149 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 150 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 151 reg_val); 152 153 /* 154 * W/A : NIC is stuck in a reset state after Early PCIe power off 155 * (PCIe power is lost before PERST# is asserted), causing ME FW 156 * to lose ownership and not being able to obtain it back. 157 */ 158 if (!mvm->trans->cfg->apmg_not_supported) 159 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 160 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 161 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 162 } 163 164 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 165 struct iwl_rx_cmd_buffer *rxb) 166 { 167 struct iwl_rx_packet *pkt = rxb_addr(rxb); 168 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 169 struct ieee80211_supported_band *sband; 170 const struct ieee80211_sta_he_cap *he_cap; 171 struct ieee80211_vif *vif; 172 173 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 174 return; 175 176 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 177 if (!vif || vif->type != NL80211_IFTYPE_STATION) 178 return; 179 180 if (!vif->bss_conf.chandef.chan || 181 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 182 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 183 return; 184 185 if (!vif->cfg.assoc) 186 return; 187 188 /* this shouldn't happen *again*, ignore it */ 189 if (mvm->cca_40mhz_workaround) 190 return; 191 192 /* 193 * We'll decrement this on disconnect - so set to 2 since we'll 194 * still have to disconnect from the current AP first. 195 */ 196 mvm->cca_40mhz_workaround = 2; 197 198 /* 199 * This capability manipulation isn't really ideal, but it's the 200 * easiest choice - otherwise we'd have to do some major changes 201 * in mac80211 to support this, which isn't worth it. This does 202 * mean that userspace may have outdated information, but that's 203 * actually not an issue at all. 204 */ 205 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 206 207 WARN_ON(!sband->ht_cap.ht_supported); 208 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 209 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 210 211 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); 212 213 if (he_cap) { 214 /* we know that ours is writable */ 215 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 216 217 WARN_ON(!he->has_he); 218 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 219 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 220 he->he_cap_elem.phy_cap_info[0] &= 221 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 222 } 223 224 ieee80211_disconnect(vif, true); 225 } 226 227 void iwl_mvm_update_link_smps(struct ieee80211_vif *vif, 228 struct ieee80211_bss_conf *link_conf) 229 { 230 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 231 struct iwl_mvm *mvm = mvmvif->mvm; 232 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 233 234 if (!link_conf) 235 return; 236 237 if (mvm->fw_static_smps_request && 238 link_conf->chandef.width == NL80211_CHAN_WIDTH_160 && 239 link_conf->he_support) 240 mode = IEEE80211_SMPS_STATIC; 241 242 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode, 243 link_conf->link_id); 244 } 245 246 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 247 struct ieee80211_vif *vif) 248 { 249 struct ieee80211_bss_conf *link_conf; 250 unsigned int link_id; 251 252 rcu_read_lock(); 253 254 for_each_vif_active_link(vif, link_conf, link_id) 255 iwl_mvm_update_link_smps(vif, link_conf); 256 257 rcu_read_unlock(); 258 } 259 260 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 261 struct iwl_rx_cmd_buffer *rxb) 262 { 263 struct iwl_rx_packet *pkt = rxb_addr(rxb); 264 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 265 266 /* 267 * We could pass it to the iterator data, but also need to remember 268 * it for new interfaces that are added while in this state. 269 */ 270 mvm->fw_static_smps_request = 271 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 272 ieee80211_iterate_interfaces(mvm->hw, 273 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, 274 iwl_mvm_intf_dual_chain_req, NULL); 275 } 276 277 /** 278 * enum iwl_rx_handler_context context for Rx handler 279 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 280 * which can't acquire mvm->mutex. 281 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 282 * (and only in this case!), it should be set as ASYNC. In that case, 283 * it will be called from a worker with mvm->mutex held. 284 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 285 * mutex itself, it will be called from a worker without mvm->mutex held. 286 */ 287 enum iwl_rx_handler_context { 288 RX_HANDLER_SYNC, 289 RX_HANDLER_ASYNC_LOCKED, 290 RX_HANDLER_ASYNC_UNLOCKED, 291 }; 292 293 /** 294 * struct iwl_rx_handlers handler for FW notification 295 * @cmd_id: command id 296 * @min_size: minimum size to expect for the notification 297 * @context: see &iwl_rx_handler_context 298 * @fn: the function is called when notification is received 299 */ 300 struct iwl_rx_handlers { 301 u16 cmd_id, min_size; 302 enum iwl_rx_handler_context context; 303 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 304 }; 305 306 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 307 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 308 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 309 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 310 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 311 { .cmd_id = _cmd_id, .fn = _fn, \ 312 .context = _context, .min_size = sizeof(_struct), } 313 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 314 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 315 .context = _context, .min_size = sizeof(_struct), } 316 317 /* 318 * Handlers for fw notifications 319 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 320 * This list should be in order of frequency for performance purposes. 321 * 322 * The handler can be one from three contexts, see &iwl_rx_handler_context 323 */ 324 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 325 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 326 struct iwl_mvm_tx_resp), 327 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 328 struct iwl_mvm_ba_notif), 329 330 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 331 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 332 struct iwl_tlc_update_notif), 333 334 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 335 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 336 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 337 RX_HANDLER_ASYNC_LOCKED), 338 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 339 RX_HANDLER_ASYNC_LOCKED), 340 341 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 342 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 343 struct iwl_ba_window_status_notif), 344 345 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 346 RX_HANDLER_SYNC, struct iwl_time_event_notif), 347 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 348 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 349 struct iwl_mvm_session_prot_notif), 350 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 351 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 352 353 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 354 struct iwl_mvm_eosp_notification), 355 356 RX_HANDLER(SCAN_ITERATION_COMPLETE, 357 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 358 struct iwl_lmac_scan_complete_notif), 359 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 360 iwl_mvm_rx_lmac_scan_complete_notif, 361 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 362 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 363 iwl_mvm_rx_scan_match_found, 364 RX_HANDLER_SYNC), 365 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 366 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 367 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 368 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 369 struct iwl_umac_scan_iter_complete_notif), 370 371 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 372 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 373 374 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 375 struct iwl_error_resp), 376 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 377 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 378 struct iwl_uapsd_misbehaving_ap_notif), 379 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 380 RX_HANDLER_ASYNC_LOCKED), 381 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 382 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 383 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 384 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 385 struct ct_kill_notif), 386 387 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 388 RX_HANDLER_ASYNC_LOCKED, 389 struct iwl_tdls_channel_switch_notif), 390 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 391 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 392 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 393 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 394 struct iwl_ftm_responder_stats), 395 396 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 397 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 398 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 399 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 400 401 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 402 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 403 struct iwl_mfu_assert_dump_notif), 404 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 405 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 406 struct iwl_stored_beacon_notif_v2), 407 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 408 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 409 struct iwl_mu_group_mgmt_notif), 410 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 411 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 412 struct iwl_mvm_pm_state_notification), 413 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 414 iwl_mvm_probe_resp_data_notif, 415 RX_HANDLER_ASYNC_LOCKED, 416 struct iwl_probe_resp_data_notif), 417 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 418 iwl_mvm_channel_switch_start_notif, 419 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 420 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, 421 iwl_mvm_channel_switch_error_notif, 422 RX_HANDLER_ASYNC_UNLOCKED, 423 struct iwl_channel_switch_error_notif), 424 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 425 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 426 struct iwl_datapath_monitor_notif), 427 428 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 429 iwl_mvm_rx_thermal_dual_chain_req, 430 RX_HANDLER_ASYNC_LOCKED, 431 struct iwl_thermal_dual_chain_request), 432 433 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, 434 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, 435 struct iwl_rfi_deactivate_notif), 436 437 RX_HANDLER_GRP(LEGACY_GROUP, 438 WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION, 439 iwl_mvm_time_sync_msmt_event, RX_HANDLER_SYNC, 440 struct iwl_time_msmt_notify), 441 RX_HANDLER_GRP(LEGACY_GROUP, 442 WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION, 443 iwl_mvm_time_sync_msmt_confirm_event, RX_HANDLER_SYNC, 444 struct iwl_time_msmt_cfm_notify), 445 }; 446 #undef RX_HANDLER 447 #undef RX_HANDLER_GRP 448 449 /* Please keep this array *SORTED* by hex value. 450 * Access is done through binary search 451 */ 452 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 453 HCMD_NAME(UCODE_ALIVE_NTFY), 454 HCMD_NAME(REPLY_ERROR), 455 HCMD_NAME(ECHO_CMD), 456 HCMD_NAME(INIT_COMPLETE_NOTIF), 457 HCMD_NAME(PHY_CONTEXT_CMD), 458 HCMD_NAME(DBG_CFG), 459 HCMD_NAME(SCAN_CFG_CMD), 460 HCMD_NAME(SCAN_REQ_UMAC), 461 HCMD_NAME(SCAN_ABORT_UMAC), 462 HCMD_NAME(SCAN_COMPLETE_UMAC), 463 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 464 HCMD_NAME(ADD_STA_KEY), 465 HCMD_NAME(ADD_STA), 466 HCMD_NAME(REMOVE_STA), 467 HCMD_NAME(TX_CMD), 468 HCMD_NAME(SCD_QUEUE_CFG), 469 HCMD_NAME(TXPATH_FLUSH), 470 HCMD_NAME(MGMT_MCAST_KEY), 471 HCMD_NAME(WEP_KEY), 472 HCMD_NAME(SHARED_MEM_CFG), 473 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 474 HCMD_NAME(MAC_CONTEXT_CMD), 475 HCMD_NAME(TIME_EVENT_CMD), 476 HCMD_NAME(TIME_EVENT_NOTIFICATION), 477 HCMD_NAME(BINDING_CONTEXT_CMD), 478 HCMD_NAME(TIME_QUOTA_CMD), 479 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 480 HCMD_NAME(LEDS_CMD), 481 HCMD_NAME(LQ_CMD), 482 HCMD_NAME(FW_PAGING_BLOCK_CMD), 483 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 484 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 485 HCMD_NAME(HOT_SPOT_CMD), 486 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 487 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 488 HCMD_NAME(BT_COEX_CI), 489 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION), 490 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION), 491 HCMD_NAME(PHY_CONFIGURATION_CMD), 492 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 493 HCMD_NAME(PHY_DB_CMD), 494 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 495 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 496 HCMD_NAME(POWER_TABLE_CMD), 497 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 498 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 499 HCMD_NAME(NVM_ACCESS_CMD), 500 HCMD_NAME(BEACON_NOTIFICATION), 501 HCMD_NAME(BEACON_TEMPLATE_CMD), 502 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 503 HCMD_NAME(BT_CONFIG), 504 HCMD_NAME(STATISTICS_CMD), 505 HCMD_NAME(STATISTICS_NOTIFICATION), 506 HCMD_NAME(EOSP_NOTIFICATION), 507 HCMD_NAME(REDUCE_TX_POWER_CMD), 508 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 509 HCMD_NAME(TDLS_CONFIG_CMD), 510 HCMD_NAME(MAC_PM_POWER_TABLE), 511 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 512 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 513 HCMD_NAME(RSS_CONFIG_CMD), 514 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 515 HCMD_NAME(REPLY_RX_PHY_CMD), 516 HCMD_NAME(REPLY_RX_MPDU_CMD), 517 HCMD_NAME(BAR_FRAME_RELEASE), 518 HCMD_NAME(FRAME_RELEASE), 519 HCMD_NAME(BA_NOTIF), 520 HCMD_NAME(MCC_UPDATE_CMD), 521 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 522 HCMD_NAME(MARKER_CMD), 523 HCMD_NAME(BT_PROFILE_NOTIFICATION), 524 HCMD_NAME(MCAST_FILTER_CMD), 525 HCMD_NAME(REPLY_SF_CFG_CMD), 526 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 527 HCMD_NAME(D3_CONFIG_CMD), 528 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 529 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 530 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 531 HCMD_NAME(WOWLAN_PATTERNS), 532 HCMD_NAME(WOWLAN_CONFIGURATION), 533 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 534 HCMD_NAME(WOWLAN_TKIP_PARAM), 535 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 536 HCMD_NAME(WOWLAN_GET_STATUSES), 537 HCMD_NAME(SCAN_ITERATION_COMPLETE), 538 HCMD_NAME(D0I3_END_CMD), 539 HCMD_NAME(LTR_CONFIG), 540 HCMD_NAME(LDBG_CONFIG_CMD), 541 }; 542 543 /* Please keep this array *SORTED* by hex value. 544 * Access is done through binary search 545 */ 546 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 547 HCMD_NAME(SHARED_MEM_CFG_CMD), 548 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 549 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 550 HCMD_NAME(RFI_CONFIG_CMD), 551 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 552 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 553 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 554 }; 555 556 /* Please keep this array *SORTED* by hex value. 557 * Access is done through binary search 558 */ 559 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 560 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 561 HCMD_NAME(SESSION_PROTECTION_CMD), 562 HCMD_NAME(MAC_CONFIG_CMD), 563 HCMD_NAME(LINK_CONFIG_CMD), 564 HCMD_NAME(STA_CONFIG_CMD), 565 HCMD_NAME(AUX_STA_CMD), 566 HCMD_NAME(STA_REMOVE_CMD), 567 HCMD_NAME(STA_DISABLE_TX_CMD), 568 HCMD_NAME(SESSION_PROTECTION_NOTIF), 569 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 570 }; 571 572 /* Please keep this array *SORTED* by hex value. 573 * Access is done through binary search 574 */ 575 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 576 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 577 HCMD_NAME(CTDP_CONFIG_CMD), 578 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 579 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 580 HCMD_NAME(CT_KILL_NOTIFICATION), 581 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 582 }; 583 584 /* Please keep this array *SORTED* by hex value. 585 * Access is done through binary search 586 */ 587 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 588 HCMD_NAME(DQA_ENABLE_CMD), 589 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 590 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 591 HCMD_NAME(STA_HE_CTXT_CMD), 592 HCMD_NAME(RLC_CONFIG_CMD), 593 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 594 HCMD_NAME(TLC_MNG_CONFIG_CMD), 595 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 596 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 597 HCMD_NAME(SEC_KEY_CMD), 598 HCMD_NAME(MONITOR_NOTIF), 599 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 600 HCMD_NAME(STA_PM_NOTIF), 601 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 602 HCMD_NAME(RX_QUEUES_NOTIFICATION), 603 }; 604 605 /* Please keep this array *SORTED* by hex value. 606 * Access is done through binary search 607 */ 608 static const struct iwl_hcmd_names iwl_mvm_scan_names[] = { 609 HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF), 610 }; 611 612 /* Please keep this array *SORTED* by hex value. 613 * Access is done through binary search 614 */ 615 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 616 HCMD_NAME(TOF_RANGE_REQ_CMD), 617 HCMD_NAME(TOF_CONFIG_CMD), 618 HCMD_NAME(TOF_RANGE_ABORT_CMD), 619 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 620 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 621 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 622 HCMD_NAME(TOF_LC_NOTIF), 623 HCMD_NAME(TOF_RESPONDER_STATS), 624 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 625 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 626 }; 627 628 /* Please keep this array *SORTED* by hex value. 629 * Access is done through binary search 630 */ 631 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 632 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), 633 HCMD_NAME(WOWLAN_INFO_NOTIFICATION), 634 HCMD_NAME(D3_END_NOTIFICATION), 635 HCMD_NAME(STORED_BEACON_NTF), 636 }; 637 638 /* Please keep this array *SORTED* by hex value. 639 * Access is done through binary search 640 */ 641 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 642 HCMD_NAME(NVM_ACCESS_COMPLETE), 643 HCMD_NAME(NVM_GET_INFO), 644 HCMD_NAME(TAS_CONFIG), 645 }; 646 647 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 648 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 649 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 650 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 651 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 652 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 653 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 654 [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names), 655 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 656 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 657 [REGULATORY_AND_NVM_GROUP] = 658 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 659 }; 660 661 /* this forward declaration can avoid to export the function */ 662 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 663 664 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 665 { 666 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 667 u64 dflt_pwr_limit; 668 669 if (!backoff) 670 return 0; 671 672 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 673 674 while (backoff->pwr) { 675 if (dflt_pwr_limit >= backoff->pwr) 676 return backoff->backoff; 677 678 backoff++; 679 } 680 681 return 0; 682 } 683 684 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 685 { 686 struct iwl_mvm *mvm = 687 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 688 struct ieee80211_vif *tx_blocked_vif; 689 struct iwl_mvm_vif *mvmvif; 690 691 mutex_lock(&mvm->mutex); 692 693 tx_blocked_vif = 694 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 695 lockdep_is_held(&mvm->mutex)); 696 697 if (!tx_blocked_vif) 698 goto unlock; 699 700 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 701 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 702 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 703 unlock: 704 mutex_unlock(&mvm->mutex); 705 } 706 707 static void iwl_mvm_fwrt_dump_start(void *ctx) 708 { 709 struct iwl_mvm *mvm = ctx; 710 711 mutex_lock(&mvm->mutex); 712 } 713 714 static void iwl_mvm_fwrt_dump_end(void *ctx) 715 { 716 struct iwl_mvm *mvm = ctx; 717 718 mutex_unlock(&mvm->mutex); 719 } 720 721 static bool iwl_mvm_fwrt_fw_running(void *ctx) 722 { 723 return iwl_mvm_firmware_running(ctx); 724 } 725 726 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 727 { 728 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 729 int ret; 730 731 mutex_lock(&mvm->mutex); 732 ret = iwl_mvm_send_cmd(mvm, host_cmd); 733 mutex_unlock(&mvm->mutex); 734 735 return ret; 736 } 737 738 static bool iwl_mvm_d3_debug_enable(void *ctx) 739 { 740 return IWL_MVM_D3_DEBUG; 741 } 742 743 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 744 .dump_start = iwl_mvm_fwrt_dump_start, 745 .dump_end = iwl_mvm_fwrt_dump_end, 746 .fw_running = iwl_mvm_fwrt_fw_running, 747 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 748 .d3_debug_enable = iwl_mvm_d3_debug_enable, 749 }; 750 751 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 752 { 753 struct iwl_trans *trans = mvm->trans; 754 int ret; 755 756 if (trans->csme_own) { 757 if (WARN(!mvm->mei_registered, 758 "csme is owner, but we aren't registered to iwlmei\n")) 759 goto get_nvm_from_fw; 760 761 mvm->mei_nvm_data = iwl_mei_get_nvm(); 762 if (mvm->mei_nvm_data) { 763 /* 764 * mvm->mei_nvm_data is set and because of that, 765 * we'll load the NVM from the FW when we'll get 766 * ownership. 767 */ 768 mvm->nvm_data = 769 iwl_parse_mei_nvm_data(trans, trans->cfg, 770 mvm->mei_nvm_data, mvm->fw); 771 return 0; 772 } 773 774 IWL_ERR(mvm, 775 "Got a NULL NVM from CSME, trying to get it from the device\n"); 776 } 777 778 get_nvm_from_fw: 779 rtnl_lock(); 780 wiphy_lock(mvm->hw->wiphy); 781 mutex_lock(&mvm->mutex); 782 783 ret = iwl_trans_start_hw(mvm->trans); 784 if (ret) { 785 mutex_unlock(&mvm->mutex); 786 wiphy_unlock(mvm->hw->wiphy); 787 rtnl_unlock(); 788 return ret; 789 } 790 791 ret = iwl_run_init_mvm_ucode(mvm); 792 if (ret && ret != -ERFKILL) 793 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 794 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 795 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 796 ret = iwl_mvm_init_mcc(mvm); 797 } 798 799 if (!iwlmvm_mod_params.init_dbg || !ret) 800 iwl_mvm_stop_device(mvm); 801 802 mutex_unlock(&mvm->mutex); 803 wiphy_unlock(mvm->hw->wiphy); 804 rtnl_unlock(); 805 806 if (ret) 807 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 808 809 return ret; 810 } 811 812 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 813 { 814 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 815 int ret; 816 817 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 818 819 ret = iwl_mvm_mac_setup_register(mvm); 820 if (ret) 821 return ret; 822 823 mvm->hw_registered = true; 824 825 iwl_mvm_dbgfs_register(mvm); 826 827 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 828 mvm->mei_rfkill_blocked, 829 RFKILL_HARD_BLOCK_NOT_OWNER); 830 831 iwl_mvm_mei_set_sw_rfkill_state(mvm); 832 833 return 0; 834 } 835 836 struct iwl_mvm_frob_txf_data { 837 u8 *buf; 838 size_t buflen; 839 }; 840 841 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 842 struct ieee80211_vif *vif, 843 struct ieee80211_sta *sta, 844 struct ieee80211_key_conf *key, 845 void *data) 846 { 847 struct iwl_mvm_frob_txf_data *txf = data; 848 u8 keylen, match, matchend; 849 u8 *keydata; 850 size_t i; 851 852 switch (key->cipher) { 853 case WLAN_CIPHER_SUITE_CCMP: 854 keydata = key->key; 855 keylen = key->keylen; 856 break; 857 case WLAN_CIPHER_SUITE_WEP40: 858 case WLAN_CIPHER_SUITE_WEP104: 859 case WLAN_CIPHER_SUITE_TKIP: 860 /* 861 * WEP has short keys which might show up in the payload, 862 * and then you can deduce the key, so in this case just 863 * remove all FIFO data. 864 * For TKIP, we don't know the phase 2 keys here, so same. 865 */ 866 memset(txf->buf, 0xBB, txf->buflen); 867 return; 868 default: 869 return; 870 } 871 872 /* scan for key material and clear it out */ 873 match = 0; 874 for (i = 0; i < txf->buflen; i++) { 875 if (txf->buf[i] != keydata[match]) { 876 match = 0; 877 continue; 878 } 879 match++; 880 if (match == keylen) { 881 memset(txf->buf + i - keylen, 0xAA, keylen); 882 match = 0; 883 } 884 } 885 886 /* we're dealing with a FIFO, so check wrapped around data */ 887 matchend = match; 888 for (i = 0; match && i < keylen - match; i++) { 889 if (txf->buf[i] != keydata[match]) 890 break; 891 match++; 892 if (match == keylen) { 893 memset(txf->buf, 0xAA, i + 1); 894 memset(txf->buf + txf->buflen - matchend, 0xAA, 895 matchend); 896 break; 897 } 898 } 899 } 900 901 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 902 { 903 struct iwl_mvm_frob_txf_data txf = { 904 .buf = buf, 905 .buflen = buflen, 906 }; 907 struct iwl_mvm *mvm = ctx; 908 909 /* embedded key material exists only on old API */ 910 if (iwl_mvm_has_new_tx_api(mvm)) 911 return; 912 913 rcu_read_lock(); 914 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 915 rcu_read_unlock(); 916 } 917 918 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 919 { 920 /* we only use wide headers for commands */ 921 struct iwl_cmd_header_wide *hdr = hcmd; 922 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 923 924 if (len < sizeof(hdr)) 925 return; 926 927 /* all the commands we care about are in LONG_GROUP */ 928 if (hdr->group_id != LONG_GROUP) 929 return; 930 931 switch (hdr->cmd) { 932 case WEP_KEY: 933 case WOWLAN_TKIP_PARAM: 934 case WOWLAN_KEK_KCK_MATERIAL: 935 case ADD_STA_KEY: 936 /* 937 * blank out everything here, easier than dealing 938 * with the various versions of the command 939 */ 940 frob_end = INT_MAX; 941 break; 942 case MGMT_MCAST_KEY: 943 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 944 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 945 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 946 947 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 948 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 949 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 950 break; 951 } 952 953 if (frob_start >= frob_end) 954 return; 955 956 if (frob_end > len) 957 frob_end = len; 958 959 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 960 } 961 962 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 963 { 964 const struct iwl_dump_exclude *excl; 965 struct iwl_mvm *mvm = ctx; 966 int i; 967 968 switch (mvm->fwrt.cur_fw_img) { 969 case IWL_UCODE_INIT: 970 default: 971 /* not relevant */ 972 return; 973 case IWL_UCODE_REGULAR: 974 case IWL_UCODE_REGULAR_USNIFFER: 975 excl = mvm->fw->dump_excl; 976 break; 977 case IWL_UCODE_WOWLAN: 978 excl = mvm->fw->dump_excl_wowlan; 979 break; 980 } 981 982 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 983 sizeof(mvm->fw->dump_excl_wowlan)); 984 985 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 986 u32 start, end; 987 988 if (!excl[i].addr || !excl[i].size) 989 continue; 990 991 start = excl[i].addr; 992 end = start + excl[i].size; 993 994 if (end <= mem_addr || start >= mem_addr + buflen) 995 continue; 996 997 if (start < mem_addr) 998 start = mem_addr; 999 1000 if (end > mem_addr + buflen) 1001 end = mem_addr + buflen; 1002 1003 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 1004 } 1005 } 1006 1007 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 1008 .frob_txf = iwl_mvm_frob_txf, 1009 .frob_hcmd = iwl_mvm_frob_hcmd, 1010 .frob_mem = iwl_mvm_frob_mem, 1011 }; 1012 1013 #if IS_ENABLED(CONFIG_IWLMEI) 1014 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 1015 { 1016 struct iwl_mvm *mvm = priv; 1017 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 1018 1019 /* 1020 * This is protected by the guarantee that this function will not be 1021 * called twice on two different threads 1022 */ 1023 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 1024 1025 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 1026 if (!curr_conn_info) 1027 return; 1028 1029 curr_conn_info->conn_info = *conn_info; 1030 1031 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 1032 1033 if (prev_conn_info) 1034 kfree_rcu(prev_conn_info, rcu_head); 1035 } 1036 1037 static void iwl_mvm_mei_rfkill(void *priv, bool blocked, 1038 bool csme_taking_ownership) 1039 { 1040 struct iwl_mvm *mvm = priv; 1041 1042 if (blocked && !csme_taking_ownership) 1043 return; 1044 1045 mvm->mei_rfkill_blocked = blocked; 1046 if (!mvm->hw_registered) 1047 return; 1048 1049 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 1050 mvm->mei_rfkill_blocked, 1051 RFKILL_HARD_BLOCK_NOT_OWNER); 1052 } 1053 1054 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 1055 { 1056 struct iwl_mvm *mvm = priv; 1057 1058 if (!mvm->hw_registered || !mvm->csme_vif) 1059 return; 1060 1061 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 1062 } 1063 #endif 1064 1065 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1066 { 1067 struct iwl_mvm *mvm = 1068 container_of(wk, struct iwl_mvm, sap_connected_wk); 1069 int ret; 1070 1071 ret = iwl_mvm_start_get_nvm(mvm); 1072 if (ret) 1073 goto out_free; 1074 1075 ret = iwl_mvm_start_post_nvm(mvm); 1076 if (ret) 1077 goto out_free; 1078 1079 return; 1080 1081 out_free: 1082 IWL_ERR(mvm, "Couldn't get started...\n"); 1083 iwl_mei_start_unregister(); 1084 iwl_mei_unregister_complete(); 1085 iwl_fw_flush_dumps(&mvm->fwrt); 1086 iwl_mvm_thermal_exit(mvm); 1087 iwl_fw_runtime_free(&mvm->fwrt); 1088 iwl_phy_db_free(mvm->phy_db); 1089 kfree(mvm->scan_cmd); 1090 iwl_trans_op_mode_leave(mvm->trans); 1091 kfree(mvm->nvm_data); 1092 kfree(mvm->mei_nvm_data); 1093 1094 ieee80211_free_hw(mvm->hw); 1095 } 1096 1097 #if IS_ENABLED(CONFIG_IWLMEI) 1098 static void iwl_mvm_mei_sap_connected(void *priv) 1099 { 1100 struct iwl_mvm *mvm = priv; 1101 1102 if (!mvm->hw_registered) 1103 schedule_work(&mvm->sap_connected_wk); 1104 } 1105 1106 static void iwl_mvm_mei_nic_stolen(void *priv) 1107 { 1108 struct iwl_mvm *mvm = priv; 1109 1110 rtnl_lock(); 1111 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1112 rtnl_unlock(); 1113 } 1114 1115 static const struct iwl_mei_ops mei_ops = { 1116 .me_conn_status = iwl_mvm_me_conn_status, 1117 .rfkill = iwl_mvm_mei_rfkill, 1118 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1119 .sap_connected = iwl_mvm_mei_sap_connected, 1120 .nic_stolen = iwl_mvm_mei_nic_stolen, 1121 }; 1122 #endif 1123 1124 static struct iwl_op_mode * 1125 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1126 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1127 { 1128 struct ieee80211_hw *hw; 1129 struct iwl_op_mode *op_mode; 1130 struct iwl_mvm *mvm; 1131 struct iwl_trans_config trans_cfg = {}; 1132 static const u8 no_reclaim_cmds[] = { 1133 TX_CMD, 1134 }; 1135 u32 max_agg; 1136 size_t scan_size; 1137 u32 min_backoff; 1138 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1139 1140 /* 1141 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1142 * index all over the driver - check that its value corresponds to the 1143 * array size. 1144 */ 1145 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1146 IWL_MVM_STATION_COUNT_MAX); 1147 1148 /******************************** 1149 * 1. Allocating and configuring HW data 1150 ********************************/ 1151 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1152 sizeof(struct iwl_mvm), 1153 iwl_mvm_has_mld_api(fw) ? &iwl_mvm_mld_hw_ops : 1154 &iwl_mvm_hw_ops); 1155 if (!hw) 1156 return NULL; 1157 1158 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 1159 max_agg = IEEE80211_MAX_AMPDU_BUF_EHT; 1160 else 1161 max_agg = IEEE80211_MAX_AMPDU_BUF_HE; 1162 1163 hw->max_rx_aggregation_subframes = max_agg; 1164 1165 if (cfg->max_tx_agg_size) 1166 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1167 else 1168 hw->max_tx_aggregation_subframes = max_agg; 1169 1170 op_mode = hw->priv; 1171 1172 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1173 mvm->dev = trans->dev; 1174 mvm->trans = trans; 1175 mvm->cfg = cfg; 1176 mvm->fw = fw; 1177 mvm->hw = hw; 1178 1179 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1180 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1181 1182 iwl_mvm_get_acpi_tables(mvm); 1183 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1184 iwl_uefi_get_step_table(trans); 1185 1186 mvm->init_status = 0; 1187 1188 if (iwl_mvm_has_new_rx_api(mvm)) { 1189 op_mode->ops = &iwl_mvm_ops_mq; 1190 trans->rx_mpdu_cmd_hdr_size = 1191 (trans->trans_cfg->device_family >= 1192 IWL_DEVICE_FAMILY_AX210) ? 1193 sizeof(struct iwl_rx_mpdu_desc) : 1194 IWL_RX_DESC_SIZE_V1; 1195 } else { 1196 op_mode->ops = &iwl_mvm_ops; 1197 trans->rx_mpdu_cmd_hdr_size = 1198 sizeof(struct iwl_rx_mpdu_res_start); 1199 1200 if (WARN_ON(trans->num_rx_queues > 1)) 1201 goto out_free; 1202 } 1203 1204 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1205 1206 if (iwl_mvm_has_new_tx_api(mvm)) { 1207 /* 1208 * If we have the new TX/queue allocation API initialize them 1209 * all to invalid numbers. We'll rewrite the ones that we need 1210 * later, but that doesn't happen for all of them all of the 1211 * time (e.g. P2P Device is optional), and if a dynamic queue 1212 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1213 * iwl_mvm_is_static_queue() erroneously returns true, and we 1214 * might have things getting stuck. 1215 */ 1216 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1217 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1218 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1219 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1220 } else { 1221 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1222 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1223 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1224 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1225 } 1226 1227 mvm->sf_state = SF_UNINIT; 1228 if (iwl_mvm_has_unified_ucode(mvm)) 1229 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1230 else 1231 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1232 mvm->drop_bcn_ap_mode = true; 1233 1234 mutex_init(&mvm->mutex); 1235 spin_lock_init(&mvm->async_handlers_lock); 1236 INIT_LIST_HEAD(&mvm->time_event_list); 1237 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1238 INIT_LIST_HEAD(&mvm->async_handlers_list); 1239 spin_lock_init(&mvm->time_event_lock); 1240 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1241 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1242 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1243 1244 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1245 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1246 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1247 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1248 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1249 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1250 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1251 spin_lock_init(&mvm->add_stream_lock); 1252 1253 init_waitqueue_head(&mvm->rx_sync_waitq); 1254 1255 mvm->queue_sync_state = 0; 1256 1257 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1258 1259 spin_lock_init(&mvm->tcm.lock); 1260 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1261 mvm->tcm.ts = jiffies; 1262 mvm->tcm.ll_ts = jiffies; 1263 mvm->tcm.uapsd_nonagg_ts = jiffies; 1264 1265 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1266 1267 mvm->cmd_ver.range_resp = 1268 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1269 TOF_RANGE_RESPONSE_NOTIF, 5); 1270 /* we only support up to version 9 */ 1271 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1272 goto out_free; 1273 1274 /* 1275 * Populate the state variables that the transport layer needs 1276 * to know about. 1277 */ 1278 trans_cfg.op_mode = op_mode; 1279 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1280 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1281 1282 switch (iwlwifi_mod_params.amsdu_size) { 1283 case IWL_AMSDU_DEF: 1284 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1285 break; 1286 case IWL_AMSDU_4K: 1287 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1288 break; 1289 case IWL_AMSDU_8K: 1290 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1291 break; 1292 case IWL_AMSDU_12K: 1293 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1294 break; 1295 default: 1296 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1297 iwlwifi_mod_params.amsdu_size); 1298 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1299 } 1300 1301 trans->wide_cmd_header = true; 1302 trans_cfg.bc_table_dword = 1303 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1304 1305 trans_cfg.command_groups = iwl_mvm_groups; 1306 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1307 1308 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1309 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1310 trans_cfg.scd_set_active = true; 1311 1312 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1313 driver_data[2]); 1314 1315 /* Set a short watchdog for the command queue */ 1316 trans_cfg.cmd_q_wdg_timeout = 1317 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1318 1319 snprintf(mvm->hw->wiphy->fw_version, 1320 sizeof(mvm->hw->wiphy->fw_version), 1321 "%s", fw->fw_version); 1322 1323 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1324 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1325 1326 trans_cfg.queue_alloc_cmd_ver = 1327 iwl_fw_lookup_cmd_ver(mvm->fw, 1328 WIDE_ID(DATA_PATH_GROUP, 1329 SCD_QUEUE_CONFIG_CMD), 1330 0); 1331 mvm->sta_remove_requires_queue_remove = 1332 trans_cfg.queue_alloc_cmd_ver > 0; 1333 1334 mvm->mld_api_is_used = iwl_mvm_has_mld_api(mvm->fw); 1335 1336 /* Configure transport layer */ 1337 iwl_trans_configure(mvm->trans, &trans_cfg); 1338 1339 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1340 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1341 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1342 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1343 sizeof(trans->dbg.conf_tlv)); 1344 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1345 1346 trans->iml = mvm->fw->iml; 1347 trans->iml_len = mvm->fw->iml_len; 1348 1349 /* set up notification wait support */ 1350 iwl_notification_wait_init(&mvm->notif_wait); 1351 1352 /* Init phy db */ 1353 mvm->phy_db = iwl_phy_db_init(trans); 1354 if (!mvm->phy_db) { 1355 IWL_ERR(mvm, "Cannot init phy_db\n"); 1356 goto out_free; 1357 } 1358 1359 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1360 mvm->trans->name, mvm->trans->hw_rev); 1361 1362 if (iwlwifi_mod_params.nvm_file) 1363 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1364 else 1365 IWL_DEBUG_EEPROM(mvm->trans->dev, 1366 "working without external nvm file\n"); 1367 1368 scan_size = iwl_mvm_scan_size(mvm); 1369 1370 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1371 if (!mvm->scan_cmd) 1372 goto out_free; 1373 mvm->scan_cmd_size = scan_size; 1374 1375 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1376 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1377 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1378 1379 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1380 mvm->last_ebs_successful = true; 1381 1382 min_backoff = iwl_mvm_min_backoff(mvm); 1383 iwl_mvm_thermal_initialize(mvm, min_backoff); 1384 1385 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1386 memset(&mvm->rx_stats_v3, 0, 1387 sizeof(struct mvm_statistics_rx_v3)); 1388 else 1389 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1390 1391 iwl_mvm_ftm_initiator_smooth_config(mvm); 1392 1393 iwl_mvm_init_time_sync(&mvm->time_sync); 1394 1395 mvm->debugfs_dir = dbgfs_dir; 1396 1397 #if IS_ENABLED(CONFIG_IWLMEI) 1398 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1399 #else 1400 mvm->mei_registered = false; 1401 #endif 1402 1403 iwl_mvm_mei_scan_filter_init(&mvm->mei_scan_filter); 1404 1405 if (iwl_mvm_start_get_nvm(mvm)) { 1406 /* 1407 * Getting NVM failed while CSME is the owner, but we are 1408 * registered to MEI, we'll get the NVM later when it'll be 1409 * possible to get it from CSME. 1410 */ 1411 if (trans->csme_own && mvm->mei_registered) 1412 return op_mode; 1413 1414 goto out_thermal_exit; 1415 } 1416 1417 1418 if (iwl_mvm_start_post_nvm(mvm)) 1419 goto out_thermal_exit; 1420 1421 return op_mode; 1422 1423 out_thermal_exit: 1424 iwl_mvm_thermal_exit(mvm); 1425 if (mvm->mei_registered) { 1426 iwl_mei_start_unregister(); 1427 iwl_mei_unregister_complete(); 1428 } 1429 out_free: 1430 iwl_fw_flush_dumps(&mvm->fwrt); 1431 iwl_fw_runtime_free(&mvm->fwrt); 1432 1433 if (iwlmvm_mod_params.init_dbg) 1434 return op_mode; 1435 iwl_phy_db_free(mvm->phy_db); 1436 kfree(mvm->scan_cmd); 1437 iwl_trans_op_mode_leave(trans); 1438 1439 ieee80211_free_hw(mvm->hw); 1440 return NULL; 1441 } 1442 1443 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1444 { 1445 lockdep_assert_held(&mvm->mutex); 1446 1447 iwl_fw_cancel_timestamp(&mvm->fwrt); 1448 1449 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1450 1451 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1452 iwl_trans_stop_device(mvm->trans); 1453 iwl_free_fw_paging(&mvm->fwrt); 1454 iwl_fw_dump_conf_clear(&mvm->fwrt); 1455 iwl_mvm_mei_device_state(mvm, false); 1456 } 1457 1458 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1459 { 1460 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1461 int i; 1462 1463 if (mvm->mei_registered) { 1464 rtnl_lock(); 1465 iwl_mei_set_netdev(NULL); 1466 rtnl_unlock(); 1467 iwl_mei_start_unregister(); 1468 } 1469 1470 /* 1471 * After we unregister from mei, the worker can't be scheduled 1472 * anymore. 1473 */ 1474 cancel_work_sync(&mvm->sap_connected_wk); 1475 1476 iwl_mvm_leds_exit(mvm); 1477 1478 iwl_mvm_thermal_exit(mvm); 1479 1480 /* 1481 * If we couldn't get ownership on the device and we couldn't 1482 * get the NVM from CSME, we haven't registered to mac80211. 1483 * In that case, we didn't fail op_mode_start, because we are 1484 * waiting for CSME to allow us to get the NVM to register to 1485 * mac80211. If that didn't happen, we haven't registered to 1486 * mac80211, hence the if below. 1487 */ 1488 if (mvm->hw_registered) 1489 ieee80211_unregister_hw(mvm->hw); 1490 1491 kfree(mvm->scan_cmd); 1492 kfree(mvm->mcast_filter_cmd); 1493 mvm->mcast_filter_cmd = NULL; 1494 1495 kfree(mvm->error_recovery_buf); 1496 mvm->error_recovery_buf = NULL; 1497 1498 iwl_mvm_ptp_remove(mvm); 1499 1500 iwl_trans_op_mode_leave(mvm->trans); 1501 1502 iwl_phy_db_free(mvm->phy_db); 1503 mvm->phy_db = NULL; 1504 1505 kfree(mvm->nvm_data); 1506 kfree(mvm->mei_nvm_data); 1507 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1508 kfree(mvm->temp_nvm_data); 1509 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1510 kfree(mvm->nvm_sections[i].data); 1511 1512 cancel_delayed_work_sync(&mvm->tcm.work); 1513 1514 iwl_fw_runtime_free(&mvm->fwrt); 1515 mutex_destroy(&mvm->mutex); 1516 1517 if (mvm->mei_registered) 1518 iwl_mei_unregister_complete(); 1519 1520 ieee80211_free_hw(mvm->hw); 1521 } 1522 1523 struct iwl_async_handler_entry { 1524 struct list_head list; 1525 struct iwl_rx_cmd_buffer rxb; 1526 enum iwl_rx_handler_context context; 1527 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1528 }; 1529 1530 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1531 { 1532 struct iwl_async_handler_entry *entry, *tmp; 1533 1534 spin_lock_bh(&mvm->async_handlers_lock); 1535 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1536 iwl_free_rxb(&entry->rxb); 1537 list_del(&entry->list); 1538 kfree(entry); 1539 } 1540 spin_unlock_bh(&mvm->async_handlers_lock); 1541 } 1542 1543 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1544 { 1545 struct iwl_mvm *mvm = 1546 container_of(wk, struct iwl_mvm, async_handlers_wk); 1547 struct iwl_async_handler_entry *entry, *tmp; 1548 LIST_HEAD(local_list); 1549 1550 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1551 1552 /* 1553 * Sync with Rx path with a lock. Remove all the entries from this list, 1554 * add them to a local one (lock free), and then handle them. 1555 */ 1556 spin_lock_bh(&mvm->async_handlers_lock); 1557 list_splice_init(&mvm->async_handlers_list, &local_list); 1558 spin_unlock_bh(&mvm->async_handlers_lock); 1559 1560 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1561 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1562 mutex_lock(&mvm->mutex); 1563 entry->fn(mvm, &entry->rxb); 1564 iwl_free_rxb(&entry->rxb); 1565 list_del(&entry->list); 1566 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1567 mutex_unlock(&mvm->mutex); 1568 kfree(entry); 1569 } 1570 } 1571 1572 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1573 struct iwl_rx_packet *pkt) 1574 { 1575 struct iwl_fw_dbg_trigger_tlv *trig; 1576 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1577 int i; 1578 1579 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1580 FW_DBG_TRIGGER_FW_NOTIF); 1581 if (!trig) 1582 return; 1583 1584 cmds_trig = (void *)trig->data; 1585 1586 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1587 /* don't collect on CMD 0 */ 1588 if (!cmds_trig->cmds[i].cmd_id) 1589 break; 1590 1591 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1592 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1593 continue; 1594 1595 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1596 "CMD 0x%02x.%02x received", 1597 pkt->hdr.group_id, pkt->hdr.cmd); 1598 break; 1599 } 1600 } 1601 1602 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1603 struct iwl_rx_cmd_buffer *rxb, 1604 struct iwl_rx_packet *pkt) 1605 { 1606 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1607 int i; 1608 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1609 1610 iwl_dbg_tlv_time_point(&mvm->fwrt, 1611 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1612 iwl_mvm_rx_check_trigger(mvm, pkt); 1613 1614 /* 1615 * Do the notification wait before RX handlers so 1616 * even if the RX handler consumes the RXB we have 1617 * access to it in the notification wait entry. 1618 */ 1619 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1620 1621 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1622 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1623 struct iwl_async_handler_entry *entry; 1624 1625 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1626 continue; 1627 1628 if (IWL_FW_CHECK(mvm, pkt_len < rx_h->min_size, 1629 "unexpected notification 0x%04x size %d, need %d\n", 1630 rx_h->cmd_id, pkt_len, rx_h->min_size)) 1631 return; 1632 1633 if (rx_h->context == RX_HANDLER_SYNC) { 1634 rx_h->fn(mvm, rxb); 1635 return; 1636 } 1637 1638 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1639 /* we can't do much... */ 1640 if (!entry) 1641 return; 1642 1643 entry->rxb._page = rxb_steal_page(rxb); 1644 entry->rxb._offset = rxb->_offset; 1645 entry->rxb._rx_page_order = rxb->_rx_page_order; 1646 entry->fn = rx_h->fn; 1647 entry->context = rx_h->context; 1648 spin_lock(&mvm->async_handlers_lock); 1649 list_add_tail(&entry->list, &mvm->async_handlers_list); 1650 spin_unlock(&mvm->async_handlers_lock); 1651 schedule_work(&mvm->async_handlers_wk); 1652 break; 1653 } 1654 } 1655 1656 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1657 struct napi_struct *napi, 1658 struct iwl_rx_cmd_buffer *rxb) 1659 { 1660 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1661 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1662 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1663 1664 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1665 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1666 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1667 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1668 else 1669 iwl_mvm_rx_common(mvm, rxb, pkt); 1670 } 1671 1672 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1673 struct napi_struct *napi, 1674 struct iwl_rx_cmd_buffer *rxb) 1675 { 1676 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1677 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1678 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1679 1680 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1681 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1682 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1683 RX_QUEUES_NOTIFICATION))) 1684 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1685 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1686 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1687 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1688 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1689 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1690 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1691 else 1692 iwl_mvm_rx_common(mvm, rxb, pkt); 1693 } 1694 1695 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1696 const struct iwl_device_cmd *cmd) 1697 { 1698 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1699 1700 /* 1701 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1702 * commands that need to block the Tx queues. 1703 */ 1704 iwl_trans_block_txq_ptrs(mvm->trans, false); 1705 } 1706 1707 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1708 { 1709 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1710 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1711 } 1712 1713 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1714 int hw_queue, bool start) 1715 { 1716 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1717 struct ieee80211_sta *sta; 1718 struct ieee80211_txq *txq; 1719 struct iwl_mvm_txq *mvmtxq; 1720 int i; 1721 unsigned long tid_bitmap; 1722 struct iwl_mvm_sta *mvmsta; 1723 u8 sta_id; 1724 1725 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1726 mvm->tvqm_info[hw_queue].sta_id : 1727 mvm->queue_info[hw_queue].ra_sta_id; 1728 1729 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1730 return; 1731 1732 rcu_read_lock(); 1733 1734 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1735 if (IS_ERR_OR_NULL(sta)) 1736 goto out; 1737 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1738 1739 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1740 if (!start) 1741 ieee80211_stop_queues(mvm->hw); 1742 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1743 ieee80211_wake_queues(mvm->hw); 1744 1745 goto out; 1746 } 1747 1748 if (iwl_mvm_has_new_tx_api(mvm)) { 1749 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1750 1751 tid_bitmap = BIT(tid); 1752 } else { 1753 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1754 } 1755 1756 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1757 int tid = i; 1758 1759 if (tid == IWL_MAX_TID_COUNT) 1760 tid = IEEE80211_NUM_TIDS; 1761 1762 txq = sta->txq[tid]; 1763 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1764 if (start) 1765 clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1766 else 1767 set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); 1768 1769 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) { 1770 local_bh_disable(); 1771 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1772 local_bh_enable(); 1773 } 1774 } 1775 1776 out: 1777 rcu_read_unlock(); 1778 } 1779 1780 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1781 { 1782 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1783 } 1784 1785 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1786 { 1787 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1788 } 1789 1790 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1791 { 1792 bool state = iwl_mvm_is_radio_killed(mvm); 1793 1794 if (state) 1795 wake_up(&mvm->rx_sync_waitq); 1796 1797 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1798 } 1799 1800 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1801 { 1802 if (state) 1803 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1804 else 1805 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1806 1807 iwl_mvm_set_rfkill_state(mvm); 1808 } 1809 1810 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1811 { 1812 return rcu_dereference_protected(mvm->csme_conn_info, 1813 lockdep_is_held(&mvm->mutex)); 1814 } 1815 1816 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1817 { 1818 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1819 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1820 bool unified = iwl_mvm_has_unified_ucode(mvm); 1821 1822 if (state) 1823 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1824 else 1825 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1826 1827 iwl_mvm_set_rfkill_state(mvm); 1828 1829 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1830 if (rfkill_safe_init_done) 1831 iwl_abort_notification_waits(&mvm->notif_wait); 1832 1833 /* 1834 * Don't ask the transport to stop the firmware. We'll do it 1835 * after cfg80211 takes us down. 1836 */ 1837 if (unified) 1838 return false; 1839 1840 /* 1841 * Stop the device if we run OPERATIONAL firmware or if we are in the 1842 * middle of the calibrations. 1843 */ 1844 return state && rfkill_safe_init_done; 1845 } 1846 1847 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1848 { 1849 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1850 struct ieee80211_tx_info *info; 1851 1852 info = IEEE80211_SKB_CB(skb); 1853 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1854 ieee80211_free_txskb(mvm->hw, skb); 1855 } 1856 1857 struct iwl_mvm_reprobe { 1858 struct device *dev; 1859 struct work_struct work; 1860 }; 1861 1862 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1863 { 1864 struct iwl_mvm_reprobe *reprobe; 1865 1866 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1867 if (device_reprobe(reprobe->dev)) 1868 dev_err(reprobe->dev, "reprobe failed!\n"); 1869 put_device(reprobe->dev); 1870 kfree(reprobe); 1871 module_put(THIS_MODULE); 1872 } 1873 1874 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1875 { 1876 iwl_abort_notification_waits(&mvm->notif_wait); 1877 iwl_dbg_tlv_del_timers(mvm->trans); 1878 1879 /* 1880 * This is a bit racy, but worst case we tell mac80211 about 1881 * a stopped/aborted scan when that was already done which 1882 * is not a problem. It is necessary to abort any os scan 1883 * here because mac80211 requires having the scan cleared 1884 * before restarting. 1885 * We'll reset the scan_status to NONE in restart cleanup in 1886 * the next start() call from mac80211. If restart isn't called 1887 * (no fw restart) scan status will stay busy. 1888 */ 1889 iwl_mvm_report_scan_aborted(mvm); 1890 1891 /* 1892 * If we're restarting already, don't cycle restarts. 1893 * If INIT fw asserted, it will likely fail again. 1894 * If WoWLAN fw asserted, don't restart either, mac80211 1895 * can't recover this since we're already half suspended. 1896 */ 1897 if (!mvm->fw_restart && fw_error) { 1898 iwl_fw_error_collect(&mvm->fwrt, false); 1899 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1900 &mvm->status)) { 1901 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1902 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1903 struct iwl_mvm_reprobe *reprobe; 1904 1905 IWL_ERR(mvm, 1906 "Firmware error during reconfiguration - reprobe!\n"); 1907 1908 /* 1909 * get a module reference to avoid doing this while unloading 1910 * anyway and to avoid scheduling a work with code that's 1911 * being removed. 1912 */ 1913 if (!try_module_get(THIS_MODULE)) { 1914 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1915 return; 1916 } 1917 1918 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1919 if (!reprobe) { 1920 module_put(THIS_MODULE); 1921 return; 1922 } 1923 reprobe->dev = get_device(mvm->trans->dev); 1924 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1925 schedule_work(&reprobe->work); 1926 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1927 &mvm->status)) { 1928 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1929 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1930 mvm->hw_registered && 1931 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1932 /* This should be first thing before trying to collect any 1933 * data to avoid endless loops if any HW error happens while 1934 * collecting debug data. 1935 */ 1936 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1937 1938 if (mvm->fw->ucode_capa.error_log_size) { 1939 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1940 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1941 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1942 1943 if (recover_buf) { 1944 mvm->error_recovery_buf = recover_buf; 1945 iwl_trans_read_mem_bytes(mvm->trans, 1946 src_addr, 1947 recover_buf, 1948 src_size); 1949 } 1950 } 1951 1952 iwl_fw_error_collect(&mvm->fwrt, false); 1953 1954 if (fw_error && mvm->fw_restart > 0) { 1955 mvm->fw_restart--; 1956 ieee80211_restart_hw(mvm->hw); 1957 } else if (mvm->fwrt.trans->dbg.restart_required) { 1958 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1959 mvm->fwrt.trans->dbg.restart_required = FALSE; 1960 ieee80211_restart_hw(mvm->hw); 1961 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1962 ieee80211_restart_hw(mvm->hw); 1963 } 1964 } 1965 } 1966 1967 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1968 { 1969 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1970 1971 if (mvm->pldr_sync) 1972 return; 1973 1974 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1975 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1976 &mvm->status)) 1977 iwl_mvm_dump_nic_error_log(mvm); 1978 1979 if (sync) { 1980 iwl_fw_error_collect(&mvm->fwrt, true); 1981 /* 1982 * Currently, the only case for sync=true is during 1983 * shutdown, so just stop in this case. If/when that 1984 * changes, we need to be a bit smarter here. 1985 */ 1986 return; 1987 } 1988 1989 /* 1990 * If the firmware crashes while we're already considering it 1991 * to be dead then don't ask for a restart, that cannot do 1992 * anything useful anyway. 1993 */ 1994 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1995 return; 1996 1997 iwl_mvm_nic_restart(mvm, false); 1998 } 1999 2000 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 2001 { 2002 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2003 2004 WARN_ON(1); 2005 iwl_mvm_nic_restart(mvm, true); 2006 } 2007 2008 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 2009 enum iwl_fw_ini_time_point tp_id, 2010 union iwl_dbg_tlv_tp_data *tp_data) 2011 { 2012 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2013 2014 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 2015 } 2016 2017 #define IWL_MVM_COMMON_OPS \ 2018 /* these could be differentiated */ \ 2019 .async_cb = iwl_mvm_async_cb, \ 2020 .queue_full = iwl_mvm_stop_sw_queue, \ 2021 .queue_not_full = iwl_mvm_wake_sw_queue, \ 2022 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 2023 .free_skb = iwl_mvm_free_skb, \ 2024 .nic_error = iwl_mvm_nic_error, \ 2025 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 2026 .nic_config = iwl_mvm_nic_config, \ 2027 /* as we only register one, these MUST be common! */ \ 2028 .start = iwl_op_mode_mvm_start, \ 2029 .stop = iwl_op_mode_mvm_stop, \ 2030 .time_point = iwl_op_mode_mvm_time_point 2031 2032 static const struct iwl_op_mode_ops iwl_mvm_ops = { 2033 IWL_MVM_COMMON_OPS, 2034 .rx = iwl_mvm_rx, 2035 }; 2036 2037 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 2038 struct napi_struct *napi, 2039 struct iwl_rx_cmd_buffer *rxb, 2040 unsigned int queue) 2041 { 2042 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 2043 struct iwl_rx_packet *pkt = rxb_addr(rxb); 2044 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 2045 2046 if (unlikely(queue >= mvm->trans->num_rx_queues)) 2047 return; 2048 2049 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 2050 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 2051 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 2052 RX_QUEUES_NOTIFICATION))) 2053 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 2054 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 2055 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 2056 } 2057 2058 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 2059 IWL_MVM_COMMON_OPS, 2060 .rx = iwl_mvm_rx_mq, 2061 .rx_rss = iwl_mvm_rx_mq_rss, 2062 }; 2063