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 33 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 34 MODULE_DESCRIPTION(DRV_DESCRIPTION); 35 MODULE_LICENSE("GPL"); 36 MODULE_IMPORT_NS(IWLWIFI); 37 38 static const struct iwl_op_mode_ops iwl_mvm_ops; 39 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 40 41 struct iwl_mvm_mod_params iwlmvm_mod_params = { 42 .power_scheme = IWL_POWER_SCHEME_BPS, 43 /* rest of fields are 0 by default */ 44 }; 45 46 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 47 MODULE_PARM_DESC(init_dbg, 48 "set to true to debug an ASSERT in INIT fw (default: false"); 49 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 50 MODULE_PARM_DESC(power_scheme, 51 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 52 53 /* 54 * module init and exit functions 55 */ 56 static int __init iwl_mvm_init(void) 57 { 58 int ret; 59 60 ret = iwl_mvm_rate_control_register(); 61 if (ret) { 62 pr_err("Unable to register rate control algorithm: %d\n", ret); 63 return ret; 64 } 65 66 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 67 if (ret) 68 pr_err("Unable to register MVM op_mode: %d\n", ret); 69 70 return ret; 71 } 72 module_init(iwl_mvm_init); 73 74 static void __exit iwl_mvm_exit(void) 75 { 76 iwl_opmode_deregister("iwlmvm"); 77 iwl_mvm_rate_control_unregister(); 78 } 79 module_exit(iwl_mvm_exit); 80 81 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 82 { 83 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 84 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 85 u32 reg_val; 86 u32 phy_config = iwl_mvm_get_phy_config(mvm); 87 88 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 89 FW_PHY_CFG_RADIO_TYPE_POS; 90 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 91 FW_PHY_CFG_RADIO_STEP_POS; 92 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 93 FW_PHY_CFG_RADIO_DASH_POS; 94 95 /* SKU control */ 96 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); 97 98 /* radio configuration */ 99 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 100 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 101 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 102 103 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 104 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 105 106 /* 107 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 108 * sampling, and shouldn't be set to any non-zero value. 109 * The same is supposed to be true of the other HW, but unsetting 110 * them (such as the 7260) causes automatic tests to fail on seemingly 111 * unrelated errors. Need to further investigate this, but for now 112 * we'll separate cases. 113 */ 114 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 115 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 116 117 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 118 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 119 120 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 121 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | 122 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 123 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 124 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 125 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 126 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 127 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 128 reg_val); 129 130 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 131 radio_cfg_step, radio_cfg_dash); 132 133 /* 134 * W/A : NIC is stuck in a reset state after Early PCIe power off 135 * (PCIe power is lost before PERST# is asserted), causing ME FW 136 * to lose ownership and not being able to obtain it back. 137 */ 138 if (!mvm->trans->cfg->apmg_not_supported) 139 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 140 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 141 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 142 } 143 144 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 145 struct iwl_rx_cmd_buffer *rxb) 146 { 147 struct iwl_rx_packet *pkt = rxb_addr(rxb); 148 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 149 struct ieee80211_supported_band *sband; 150 const struct ieee80211_sta_he_cap *he_cap; 151 struct ieee80211_vif *vif; 152 153 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 154 return; 155 156 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 157 if (!vif || vif->type != NL80211_IFTYPE_STATION) 158 return; 159 160 if (!vif->bss_conf.chandef.chan || 161 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 162 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 163 return; 164 165 if (!vif->cfg.assoc) 166 return; 167 168 /* this shouldn't happen *again*, ignore it */ 169 if (mvm->cca_40mhz_workaround) 170 return; 171 172 /* 173 * We'll decrement this on disconnect - so set to 2 since we'll 174 * still have to disconnect from the current AP first. 175 */ 176 mvm->cca_40mhz_workaround = 2; 177 178 /* 179 * This capability manipulation isn't really ideal, but it's the 180 * easiest choice - otherwise we'd have to do some major changes 181 * in mac80211 to support this, which isn't worth it. This does 182 * mean that userspace may have outdated information, but that's 183 * actually not an issue at all. 184 */ 185 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 186 187 WARN_ON(!sband->ht_cap.ht_supported); 188 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 189 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 190 191 he_cap = ieee80211_get_he_iftype_cap(sband, 192 ieee80211_vif_type_p2p(vif)); 193 194 if (he_cap) { 195 /* we know that ours is writable */ 196 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 197 198 WARN_ON(!he->has_he); 199 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 200 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 201 he->he_cap_elem.phy_cap_info[0] &= 202 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 203 } 204 205 ieee80211_disconnect(vif, true); 206 } 207 208 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif) 209 { 210 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 211 struct iwl_mvm *mvm = mvmvif->mvm; 212 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 213 214 if (mvm->fw_static_smps_request && 215 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 && 216 vif->bss_conf.he_support) 217 mode = IEEE80211_SMPS_STATIC; 218 219 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode); 220 } 221 222 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 223 struct ieee80211_vif *vif) 224 { 225 iwl_mvm_apply_fw_smps_request(vif); 226 } 227 228 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 229 struct iwl_rx_cmd_buffer *rxb) 230 { 231 struct iwl_rx_packet *pkt = rxb_addr(rxb); 232 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 233 234 /* 235 * We could pass it to the iterator data, but also need to remember 236 * it for new interfaces that are added while in this state. 237 */ 238 mvm->fw_static_smps_request = 239 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 240 ieee80211_iterate_interfaces(mvm->hw, 241 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, 242 iwl_mvm_intf_dual_chain_req, NULL); 243 } 244 245 /** 246 * enum iwl_rx_handler_context context for Rx handler 247 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 248 * which can't acquire mvm->mutex. 249 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 250 * (and only in this case!), it should be set as ASYNC. In that case, 251 * it will be called from a worker with mvm->mutex held. 252 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 253 * mutex itself, it will be called from a worker without mvm->mutex held. 254 */ 255 enum iwl_rx_handler_context { 256 RX_HANDLER_SYNC, 257 RX_HANDLER_ASYNC_LOCKED, 258 RX_HANDLER_ASYNC_UNLOCKED, 259 }; 260 261 /** 262 * struct iwl_rx_handlers handler for FW notification 263 * @cmd_id: command id 264 * @min_size: minimum size to expect for the notification 265 * @context: see &iwl_rx_handler_context 266 * @fn: the function is called when notification is received 267 */ 268 struct iwl_rx_handlers { 269 u16 cmd_id, min_size; 270 enum iwl_rx_handler_context context; 271 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 272 }; 273 274 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 275 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 276 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 277 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 278 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 279 { .cmd_id = _cmd_id, .fn = _fn, \ 280 .context = _context, .min_size = sizeof(_struct), } 281 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 282 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 283 .context = _context, .min_size = sizeof(_struct), } 284 285 /* 286 * Handlers for fw notifications 287 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 288 * This list should be in order of frequency for performance purposes. 289 * 290 * The handler can be one from three contexts, see &iwl_rx_handler_context 291 */ 292 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 293 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 294 struct iwl_mvm_tx_resp), 295 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 296 struct iwl_mvm_ba_notif), 297 298 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 299 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 300 struct iwl_tlc_update_notif), 301 302 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 303 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 304 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 305 RX_HANDLER_ASYNC_LOCKED), 306 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 307 RX_HANDLER_ASYNC_LOCKED), 308 309 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 310 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 311 struct iwl_ba_window_status_notif), 312 313 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 314 RX_HANDLER_SYNC, struct iwl_time_event_notif), 315 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 316 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 317 struct iwl_mvm_session_prot_notif), 318 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 319 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 320 321 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 322 struct iwl_mvm_eosp_notification), 323 324 RX_HANDLER(SCAN_ITERATION_COMPLETE, 325 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 326 struct iwl_lmac_scan_complete_notif), 327 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 328 iwl_mvm_rx_lmac_scan_complete_notif, 329 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 330 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 331 iwl_mvm_rx_scan_match_found, 332 RX_HANDLER_SYNC), 333 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 334 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 335 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 336 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 337 struct iwl_umac_scan_iter_complete_notif), 338 339 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 340 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 341 342 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 343 struct iwl_error_resp), 344 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 345 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 346 struct iwl_uapsd_misbehaving_ap_notif), 347 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 348 RX_HANDLER_ASYNC_LOCKED), 349 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 350 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 351 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 352 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 353 struct ct_kill_notif), 354 355 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 356 RX_HANDLER_ASYNC_LOCKED, 357 struct iwl_tdls_channel_switch_notif), 358 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 359 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 360 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 361 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 362 struct iwl_ftm_responder_stats), 363 364 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 365 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 366 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 367 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 368 369 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 370 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 371 struct iwl_mfu_assert_dump_notif), 372 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 373 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 374 struct iwl_stored_beacon_notif_v2), 375 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 376 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 377 struct iwl_mu_group_mgmt_notif), 378 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 379 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 380 struct iwl_mvm_pm_state_notification), 381 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 382 iwl_mvm_probe_resp_data_notif, 383 RX_HANDLER_ASYNC_LOCKED, 384 struct iwl_probe_resp_data_notif), 385 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 386 iwl_mvm_channel_switch_start_notif, 387 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 388 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, 389 iwl_mvm_channel_switch_error_notif, 390 RX_HANDLER_ASYNC_UNLOCKED, 391 struct iwl_channel_switch_error_notif), 392 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 393 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 394 struct iwl_datapath_monitor_notif), 395 396 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 397 iwl_mvm_rx_thermal_dual_chain_req, 398 RX_HANDLER_ASYNC_LOCKED, 399 struct iwl_thermal_dual_chain_request), 400 401 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, 402 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, 403 struct iwl_rfi_deactivate_notif), 404 }; 405 #undef RX_HANDLER 406 #undef RX_HANDLER_GRP 407 408 /* Please keep this array *SORTED* by hex value. 409 * Access is done through binary search 410 */ 411 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 412 HCMD_NAME(UCODE_ALIVE_NTFY), 413 HCMD_NAME(REPLY_ERROR), 414 HCMD_NAME(ECHO_CMD), 415 HCMD_NAME(INIT_COMPLETE_NOTIF), 416 HCMD_NAME(PHY_CONTEXT_CMD), 417 HCMD_NAME(DBG_CFG), 418 HCMD_NAME(SCAN_CFG_CMD), 419 HCMD_NAME(SCAN_REQ_UMAC), 420 HCMD_NAME(SCAN_ABORT_UMAC), 421 HCMD_NAME(SCAN_COMPLETE_UMAC), 422 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 423 HCMD_NAME(ADD_STA_KEY), 424 HCMD_NAME(ADD_STA), 425 HCMD_NAME(REMOVE_STA), 426 HCMD_NAME(FW_GET_ITEM_CMD), 427 HCMD_NAME(TX_CMD), 428 HCMD_NAME(SCD_QUEUE_CFG), 429 HCMD_NAME(TXPATH_FLUSH), 430 HCMD_NAME(MGMT_MCAST_KEY), 431 HCMD_NAME(WEP_KEY), 432 HCMD_NAME(SHARED_MEM_CFG), 433 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 434 HCMD_NAME(MAC_CONTEXT_CMD), 435 HCMD_NAME(TIME_EVENT_CMD), 436 HCMD_NAME(TIME_EVENT_NOTIFICATION), 437 HCMD_NAME(BINDING_CONTEXT_CMD), 438 HCMD_NAME(TIME_QUOTA_CMD), 439 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 440 HCMD_NAME(LEDS_CMD), 441 HCMD_NAME(LQ_CMD), 442 HCMD_NAME(FW_PAGING_BLOCK_CMD), 443 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 444 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 445 HCMD_NAME(HOT_SPOT_CMD), 446 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 447 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 448 HCMD_NAME(BT_COEX_CI), 449 HCMD_NAME(PHY_CONFIGURATION_CMD), 450 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 451 HCMD_NAME(PHY_DB_CMD), 452 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 453 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 454 HCMD_NAME(POWER_TABLE_CMD), 455 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 456 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 457 HCMD_NAME(NVM_ACCESS_CMD), 458 HCMD_NAME(BEACON_NOTIFICATION), 459 HCMD_NAME(BEACON_TEMPLATE_CMD), 460 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 461 HCMD_NAME(BT_CONFIG), 462 HCMD_NAME(STATISTICS_CMD), 463 HCMD_NAME(STATISTICS_NOTIFICATION), 464 HCMD_NAME(EOSP_NOTIFICATION), 465 HCMD_NAME(REDUCE_TX_POWER_CMD), 466 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 467 HCMD_NAME(TDLS_CONFIG_CMD), 468 HCMD_NAME(MAC_PM_POWER_TABLE), 469 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 470 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 471 HCMD_NAME(RSS_CONFIG_CMD), 472 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 473 HCMD_NAME(REPLY_RX_PHY_CMD), 474 HCMD_NAME(REPLY_RX_MPDU_CMD), 475 HCMD_NAME(BAR_FRAME_RELEASE), 476 HCMD_NAME(FRAME_RELEASE), 477 HCMD_NAME(BA_NOTIF), 478 HCMD_NAME(MCC_UPDATE_CMD), 479 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 480 HCMD_NAME(MARKER_CMD), 481 HCMD_NAME(BT_PROFILE_NOTIFICATION), 482 HCMD_NAME(MCAST_FILTER_CMD), 483 HCMD_NAME(REPLY_SF_CFG_CMD), 484 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 485 HCMD_NAME(D3_CONFIG_CMD), 486 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 487 HCMD_NAME(OFFLOADS_QUERY_CMD), 488 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 489 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 490 HCMD_NAME(WOWLAN_PATTERNS), 491 HCMD_NAME(WOWLAN_CONFIGURATION), 492 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 493 HCMD_NAME(WOWLAN_TKIP_PARAM), 494 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 495 HCMD_NAME(WOWLAN_GET_STATUSES), 496 HCMD_NAME(SCAN_ITERATION_COMPLETE), 497 HCMD_NAME(D0I3_END_CMD), 498 HCMD_NAME(LTR_CONFIG), 499 HCMD_NAME(LDBG_CONFIG_CMD), 500 }; 501 502 /* Please keep this array *SORTED* by hex value. 503 * Access is done through binary search 504 */ 505 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 506 HCMD_NAME(SHARED_MEM_CFG_CMD), 507 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 508 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 509 HCMD_NAME(RFI_CONFIG_CMD), 510 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 511 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 512 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 513 }; 514 515 /* Please keep this array *SORTED* by hex value. 516 * Access is done through binary search 517 */ 518 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 519 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 520 HCMD_NAME(SESSION_PROTECTION_CMD), 521 HCMD_NAME(SESSION_PROTECTION_NOTIF), 522 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 523 }; 524 525 /* Please keep this array *SORTED* by hex value. 526 * Access is done through binary search 527 */ 528 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 529 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 530 HCMD_NAME(CTDP_CONFIG_CMD), 531 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 532 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 533 HCMD_NAME(CT_KILL_NOTIFICATION), 534 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 535 }; 536 537 /* Please keep this array *SORTED* by hex value. 538 * Access is done through binary search 539 */ 540 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 541 HCMD_NAME(DQA_ENABLE_CMD), 542 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 543 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 544 HCMD_NAME(STA_HE_CTXT_CMD), 545 HCMD_NAME(RLC_CONFIG_CMD), 546 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 547 HCMD_NAME(TLC_MNG_CONFIG_CMD), 548 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 549 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 550 HCMD_NAME(MONITOR_NOTIF), 551 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 552 HCMD_NAME(STA_PM_NOTIF), 553 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 554 HCMD_NAME(RX_QUEUES_NOTIFICATION), 555 }; 556 557 /* Please keep this array *SORTED* by hex value. 558 * Access is done through binary search 559 */ 560 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 561 HCMD_NAME(TOF_RANGE_REQ_CMD), 562 HCMD_NAME(TOF_CONFIG_CMD), 563 HCMD_NAME(TOF_RANGE_ABORT_CMD), 564 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 565 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 566 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 567 HCMD_NAME(TOF_LC_NOTIF), 568 HCMD_NAME(TOF_RESPONDER_STATS), 569 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 570 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 571 }; 572 573 /* Please keep this array *SORTED* by hex value. 574 * Access is done through binary search 575 */ 576 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 577 HCMD_NAME(STORED_BEACON_NTF), 578 }; 579 580 /* Please keep this array *SORTED* by hex value. 581 * Access is done through binary search 582 */ 583 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 584 HCMD_NAME(NVM_ACCESS_COMPLETE), 585 HCMD_NAME(NVM_GET_INFO), 586 HCMD_NAME(TAS_CONFIG), 587 }; 588 589 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 590 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 591 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 592 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 593 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 594 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 595 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 596 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 597 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 598 [REGULATORY_AND_NVM_GROUP] = 599 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 600 }; 601 602 /* this forward declaration can avoid to export the function */ 603 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 604 605 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 606 { 607 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 608 u64 dflt_pwr_limit; 609 610 if (!backoff) 611 return 0; 612 613 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 614 615 while (backoff->pwr) { 616 if (dflt_pwr_limit >= backoff->pwr) 617 return backoff->backoff; 618 619 backoff++; 620 } 621 622 return 0; 623 } 624 625 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 626 { 627 struct iwl_mvm *mvm = 628 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 629 struct ieee80211_vif *tx_blocked_vif; 630 struct iwl_mvm_vif *mvmvif; 631 632 mutex_lock(&mvm->mutex); 633 634 tx_blocked_vif = 635 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 636 lockdep_is_held(&mvm->mutex)); 637 638 if (!tx_blocked_vif) 639 goto unlock; 640 641 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 642 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 643 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 644 unlock: 645 mutex_unlock(&mvm->mutex); 646 } 647 648 static void iwl_mvm_fwrt_dump_start(void *ctx) 649 { 650 struct iwl_mvm *mvm = ctx; 651 652 mutex_lock(&mvm->mutex); 653 } 654 655 static void iwl_mvm_fwrt_dump_end(void *ctx) 656 { 657 struct iwl_mvm *mvm = ctx; 658 659 mutex_unlock(&mvm->mutex); 660 } 661 662 static bool iwl_mvm_fwrt_fw_running(void *ctx) 663 { 664 return iwl_mvm_firmware_running(ctx); 665 } 666 667 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 668 { 669 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 670 int ret; 671 672 mutex_lock(&mvm->mutex); 673 ret = iwl_mvm_send_cmd(mvm, host_cmd); 674 mutex_unlock(&mvm->mutex); 675 676 return ret; 677 } 678 679 static bool iwl_mvm_d3_debug_enable(void *ctx) 680 { 681 return IWL_MVM_D3_DEBUG; 682 } 683 684 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 685 .dump_start = iwl_mvm_fwrt_dump_start, 686 .dump_end = iwl_mvm_fwrt_dump_end, 687 .fw_running = iwl_mvm_fwrt_fw_running, 688 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 689 .d3_debug_enable = iwl_mvm_d3_debug_enable, 690 }; 691 692 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 693 { 694 struct iwl_trans *trans = mvm->trans; 695 int ret; 696 697 if (trans->csme_own) { 698 if (WARN(!mvm->mei_registered, 699 "csme is owner, but we aren't registered to iwlmei\n")) 700 goto get_nvm_from_fw; 701 702 mvm->mei_nvm_data = iwl_mei_get_nvm(); 703 if (mvm->mei_nvm_data) { 704 /* 705 * mvm->mei_nvm_data is set and because of that, 706 * we'll load the NVM from the FW when we'll get 707 * ownership. 708 */ 709 mvm->nvm_data = 710 iwl_parse_mei_nvm_data(trans, trans->cfg, 711 mvm->mei_nvm_data, mvm->fw); 712 return 0; 713 } 714 715 IWL_ERR(mvm, 716 "Got a NULL NVM from CSME, trying to get it from the device\n"); 717 } 718 719 get_nvm_from_fw: 720 rtnl_lock(); 721 wiphy_lock(mvm->hw->wiphy); 722 mutex_lock(&mvm->mutex); 723 724 ret = iwl_trans_start_hw(mvm->trans); 725 if (ret) { 726 mutex_unlock(&mvm->mutex); 727 wiphy_unlock(mvm->hw->wiphy); 728 rtnl_unlock(); 729 return ret; 730 } 731 732 ret = iwl_run_init_mvm_ucode(mvm); 733 if (ret && ret != -ERFKILL) 734 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 735 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 736 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 737 ret = iwl_mvm_init_mcc(mvm); 738 } 739 740 if (!iwlmvm_mod_params.init_dbg || !ret) 741 iwl_mvm_stop_device(mvm); 742 743 mutex_unlock(&mvm->mutex); 744 wiphy_unlock(mvm->hw->wiphy); 745 rtnl_unlock(); 746 747 if (ret) 748 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 749 750 return ret; 751 } 752 753 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 754 { 755 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 756 int ret; 757 758 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 759 760 ret = iwl_mvm_mac_setup_register(mvm); 761 if (ret) 762 return ret; 763 764 mvm->hw_registered = true; 765 766 iwl_mvm_dbgfs_register(mvm); 767 768 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 769 mvm->mei_rfkill_blocked, 770 RFKILL_HARD_BLOCK_NOT_OWNER); 771 772 iwl_mvm_mei_set_sw_rfkill_state(mvm); 773 774 return 0; 775 } 776 777 struct iwl_mvm_frob_txf_data { 778 u8 *buf; 779 size_t buflen; 780 }; 781 782 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 783 struct ieee80211_vif *vif, 784 struct ieee80211_sta *sta, 785 struct ieee80211_key_conf *key, 786 void *data) 787 { 788 struct iwl_mvm_frob_txf_data *txf = data; 789 u8 keylen, match, matchend; 790 u8 *keydata; 791 size_t i; 792 793 switch (key->cipher) { 794 case WLAN_CIPHER_SUITE_CCMP: 795 keydata = key->key; 796 keylen = key->keylen; 797 break; 798 case WLAN_CIPHER_SUITE_WEP40: 799 case WLAN_CIPHER_SUITE_WEP104: 800 case WLAN_CIPHER_SUITE_TKIP: 801 /* 802 * WEP has short keys which might show up in the payload, 803 * and then you can deduce the key, so in this case just 804 * remove all FIFO data. 805 * For TKIP, we don't know the phase 2 keys here, so same. 806 */ 807 memset(txf->buf, 0xBB, txf->buflen); 808 return; 809 default: 810 return; 811 } 812 813 /* scan for key material and clear it out */ 814 match = 0; 815 for (i = 0; i < txf->buflen; i++) { 816 if (txf->buf[i] != keydata[match]) { 817 match = 0; 818 continue; 819 } 820 match++; 821 if (match == keylen) { 822 memset(txf->buf + i - keylen, 0xAA, keylen); 823 match = 0; 824 } 825 } 826 827 /* we're dealing with a FIFO, so check wrapped around data */ 828 matchend = match; 829 for (i = 0; match && i < keylen - match; i++) { 830 if (txf->buf[i] != keydata[match]) 831 break; 832 match++; 833 if (match == keylen) { 834 memset(txf->buf, 0xAA, i + 1); 835 memset(txf->buf + txf->buflen - matchend, 0xAA, 836 matchend); 837 break; 838 } 839 } 840 } 841 842 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 843 { 844 struct iwl_mvm_frob_txf_data txf = { 845 .buf = buf, 846 .buflen = buflen, 847 }; 848 struct iwl_mvm *mvm = ctx; 849 850 /* embedded key material exists only on old API */ 851 if (iwl_mvm_has_new_tx_api(mvm)) 852 return; 853 854 rcu_read_lock(); 855 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 856 rcu_read_unlock(); 857 } 858 859 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 860 { 861 /* we only use wide headers for commands */ 862 struct iwl_cmd_header_wide *hdr = hcmd; 863 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 864 865 if (len < sizeof(hdr)) 866 return; 867 868 /* all the commands we care about are in LONG_GROUP */ 869 if (hdr->group_id != LONG_GROUP) 870 return; 871 872 switch (hdr->cmd) { 873 case WEP_KEY: 874 case WOWLAN_TKIP_PARAM: 875 case WOWLAN_KEK_KCK_MATERIAL: 876 case ADD_STA_KEY: 877 /* 878 * blank out everything here, easier than dealing 879 * with the various versions of the command 880 */ 881 frob_end = INT_MAX; 882 break; 883 case MGMT_MCAST_KEY: 884 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 885 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 886 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 887 888 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 889 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 890 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 891 break; 892 } 893 894 if (frob_start >= frob_end) 895 return; 896 897 if (frob_end > len) 898 frob_end = len; 899 900 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 901 } 902 903 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 904 { 905 const struct iwl_dump_exclude *excl; 906 struct iwl_mvm *mvm = ctx; 907 int i; 908 909 switch (mvm->fwrt.cur_fw_img) { 910 case IWL_UCODE_INIT: 911 default: 912 /* not relevant */ 913 return; 914 case IWL_UCODE_REGULAR: 915 case IWL_UCODE_REGULAR_USNIFFER: 916 excl = mvm->fw->dump_excl; 917 break; 918 case IWL_UCODE_WOWLAN: 919 excl = mvm->fw->dump_excl_wowlan; 920 break; 921 } 922 923 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 924 sizeof(mvm->fw->dump_excl_wowlan)); 925 926 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 927 u32 start, end; 928 929 if (!excl[i].addr || !excl[i].size) 930 continue; 931 932 start = excl[i].addr; 933 end = start + excl[i].size; 934 935 if (end <= mem_addr || start >= mem_addr + buflen) 936 continue; 937 938 if (start < mem_addr) 939 start = mem_addr; 940 941 if (end > mem_addr + buflen) 942 end = mem_addr + buflen; 943 944 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 945 } 946 } 947 948 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 949 .frob_txf = iwl_mvm_frob_txf, 950 .frob_hcmd = iwl_mvm_frob_hcmd, 951 .frob_mem = iwl_mvm_frob_mem, 952 }; 953 954 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 955 { 956 struct iwl_mvm *mvm = priv; 957 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 958 959 /* 960 * This is protected by the guarantee that this function will not be 961 * called twice on two different threads 962 */ 963 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 964 965 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 966 if (!curr_conn_info) 967 return; 968 969 curr_conn_info->conn_info = *conn_info; 970 971 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 972 973 if (prev_conn_info) 974 kfree_rcu(prev_conn_info, rcu_head); 975 } 976 977 static void iwl_mvm_mei_rfkill(void *priv, bool blocked) 978 { 979 struct iwl_mvm *mvm = priv; 980 981 mvm->mei_rfkill_blocked = blocked; 982 if (!mvm->hw_registered) 983 return; 984 985 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 986 mvm->mei_rfkill_blocked, 987 RFKILL_HARD_BLOCK_NOT_OWNER); 988 } 989 990 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 991 { 992 struct iwl_mvm *mvm = priv; 993 994 if (!mvm->hw_registered || !mvm->csme_vif) 995 return; 996 997 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 998 } 999 1000 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1001 { 1002 struct iwl_mvm *mvm = 1003 container_of(wk, struct iwl_mvm, sap_connected_wk); 1004 int ret; 1005 1006 ret = iwl_mvm_start_get_nvm(mvm); 1007 if (ret) 1008 goto out_free; 1009 1010 ret = iwl_mvm_start_post_nvm(mvm); 1011 if (ret) 1012 goto out_free; 1013 1014 return; 1015 1016 out_free: 1017 IWL_ERR(mvm, "Couldn't get started...\n"); 1018 iwl_mei_start_unregister(); 1019 iwl_mei_unregister_complete(); 1020 iwl_fw_flush_dumps(&mvm->fwrt); 1021 iwl_mvm_thermal_exit(mvm); 1022 iwl_fw_runtime_free(&mvm->fwrt); 1023 iwl_phy_db_free(mvm->phy_db); 1024 kfree(mvm->scan_cmd); 1025 iwl_trans_op_mode_leave(mvm->trans); 1026 kfree(mvm->nvm_data); 1027 kfree(mvm->mei_nvm_data); 1028 1029 ieee80211_free_hw(mvm->hw); 1030 } 1031 1032 static void iwl_mvm_mei_sap_connected(void *priv) 1033 { 1034 struct iwl_mvm *mvm = priv; 1035 1036 if (!mvm->hw_registered) 1037 schedule_work(&mvm->sap_connected_wk); 1038 } 1039 1040 static void iwl_mvm_mei_nic_stolen(void *priv) 1041 { 1042 struct iwl_mvm *mvm = priv; 1043 1044 rtnl_lock(); 1045 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1046 rtnl_unlock(); 1047 } 1048 1049 static const struct iwl_mei_ops mei_ops = { 1050 .me_conn_status = iwl_mvm_me_conn_status, 1051 .rfkill = iwl_mvm_mei_rfkill, 1052 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1053 .sap_connected = iwl_mvm_mei_sap_connected, 1054 .nic_stolen = iwl_mvm_mei_nic_stolen, 1055 }; 1056 1057 static struct iwl_op_mode * 1058 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1059 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1060 { 1061 struct ieee80211_hw *hw; 1062 struct iwl_op_mode *op_mode; 1063 struct iwl_mvm *mvm; 1064 struct iwl_trans_config trans_cfg = {}; 1065 static const u8 no_reclaim_cmds[] = { 1066 TX_CMD, 1067 }; 1068 int scan_size; 1069 u32 min_backoff; 1070 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1071 1072 /* 1073 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1074 * index all over the driver - check that its value corresponds to the 1075 * array size. 1076 */ 1077 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1078 IWL_MVM_STATION_COUNT_MAX); 1079 1080 /******************************** 1081 * 1. Allocating and configuring HW data 1082 ********************************/ 1083 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1084 sizeof(struct iwl_mvm), 1085 &iwl_mvm_hw_ops); 1086 if (!hw) 1087 return NULL; 1088 1089 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 1090 1091 if (cfg->max_tx_agg_size) 1092 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1093 else 1094 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 1095 1096 op_mode = hw->priv; 1097 1098 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1099 mvm->dev = trans->dev; 1100 mvm->trans = trans; 1101 mvm->cfg = cfg; 1102 mvm->fw = fw; 1103 mvm->hw = hw; 1104 1105 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1106 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1107 1108 iwl_mvm_get_acpi_tables(mvm); 1109 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1110 1111 mvm->init_status = 0; 1112 1113 if (iwl_mvm_has_new_rx_api(mvm)) { 1114 op_mode->ops = &iwl_mvm_ops_mq; 1115 trans->rx_mpdu_cmd_hdr_size = 1116 (trans->trans_cfg->device_family >= 1117 IWL_DEVICE_FAMILY_AX210) ? 1118 sizeof(struct iwl_rx_mpdu_desc) : 1119 IWL_RX_DESC_SIZE_V1; 1120 } else { 1121 op_mode->ops = &iwl_mvm_ops; 1122 trans->rx_mpdu_cmd_hdr_size = 1123 sizeof(struct iwl_rx_mpdu_res_start); 1124 1125 if (WARN_ON(trans->num_rx_queues > 1)) 1126 goto out_free; 1127 } 1128 1129 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1130 1131 if (iwl_mvm_has_new_tx_api(mvm)) { 1132 /* 1133 * If we have the new TX/queue allocation API initialize them 1134 * all to invalid numbers. We'll rewrite the ones that we need 1135 * later, but that doesn't happen for all of them all of the 1136 * time (e.g. P2P Device is optional), and if a dynamic queue 1137 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1138 * iwl_mvm_is_static_queue() erroneously returns true, and we 1139 * might have things getting stuck. 1140 */ 1141 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1142 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1143 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1144 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1145 } else { 1146 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1147 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1148 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1149 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1150 } 1151 1152 mvm->sf_state = SF_UNINIT; 1153 if (iwl_mvm_has_unified_ucode(mvm)) 1154 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1155 else 1156 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1157 mvm->drop_bcn_ap_mode = true; 1158 1159 mutex_init(&mvm->mutex); 1160 spin_lock_init(&mvm->async_handlers_lock); 1161 INIT_LIST_HEAD(&mvm->time_event_list); 1162 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1163 INIT_LIST_HEAD(&mvm->async_handlers_list); 1164 spin_lock_init(&mvm->time_event_lock); 1165 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1166 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1167 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1168 1169 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1170 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1171 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1172 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1173 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1174 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1175 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1176 1177 init_waitqueue_head(&mvm->rx_sync_waitq); 1178 1179 mvm->queue_sync_state = 0; 1180 1181 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1182 1183 spin_lock_init(&mvm->tcm.lock); 1184 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1185 mvm->tcm.ts = jiffies; 1186 mvm->tcm.ll_ts = jiffies; 1187 mvm->tcm.uapsd_nonagg_ts = jiffies; 1188 1189 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1190 1191 mvm->cmd_ver.d0i3_resp = 1192 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 1193 0); 1194 /* we only support version 1 */ 1195 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 1196 goto out_free; 1197 1198 mvm->cmd_ver.range_resp = 1199 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1200 TOF_RANGE_RESPONSE_NOTIF, 5); 1201 /* we only support up to version 9 */ 1202 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1203 goto out_free; 1204 1205 /* 1206 * Populate the state variables that the transport layer needs 1207 * to know about. 1208 */ 1209 trans_cfg.op_mode = op_mode; 1210 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1211 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1212 1213 switch (iwlwifi_mod_params.amsdu_size) { 1214 case IWL_AMSDU_DEF: 1215 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1216 break; 1217 case IWL_AMSDU_4K: 1218 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1219 break; 1220 case IWL_AMSDU_8K: 1221 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1222 break; 1223 case IWL_AMSDU_12K: 1224 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1225 break; 1226 default: 1227 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1228 iwlwifi_mod_params.amsdu_size); 1229 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1230 } 1231 1232 trans->wide_cmd_header = true; 1233 trans_cfg.bc_table_dword = 1234 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1235 1236 trans_cfg.command_groups = iwl_mvm_groups; 1237 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1238 1239 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1240 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1241 trans_cfg.scd_set_active = true; 1242 1243 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1244 driver_data[2]); 1245 1246 /* Set a short watchdog for the command queue */ 1247 trans_cfg.cmd_q_wdg_timeout = 1248 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1249 1250 snprintf(mvm->hw->wiphy->fw_version, 1251 sizeof(mvm->hw->wiphy->fw_version), 1252 "%s", fw->fw_version); 1253 1254 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1255 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1256 1257 trans_cfg.queue_alloc_cmd_ver = 1258 iwl_fw_lookup_cmd_ver(mvm->fw, 1259 WIDE_ID(DATA_PATH_GROUP, 1260 SCD_QUEUE_CONFIG_CMD), 1261 0); 1262 mvm->sta_remove_requires_queue_remove = 1263 trans_cfg.queue_alloc_cmd_ver > 0; 1264 1265 /* Configure transport layer */ 1266 iwl_trans_configure(mvm->trans, &trans_cfg); 1267 1268 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1269 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1270 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1271 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1272 sizeof(trans->dbg.conf_tlv)); 1273 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1274 1275 trans->iml = mvm->fw->iml; 1276 trans->iml_len = mvm->fw->iml_len; 1277 1278 /* set up notification wait support */ 1279 iwl_notification_wait_init(&mvm->notif_wait); 1280 1281 /* Init phy db */ 1282 mvm->phy_db = iwl_phy_db_init(trans); 1283 if (!mvm->phy_db) { 1284 IWL_ERR(mvm, "Cannot init phy_db\n"); 1285 goto out_free; 1286 } 1287 1288 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1289 mvm->trans->name, mvm->trans->hw_rev); 1290 1291 if (iwlwifi_mod_params.nvm_file) 1292 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1293 else 1294 IWL_DEBUG_EEPROM(mvm->trans->dev, 1295 "working without external nvm file\n"); 1296 1297 scan_size = iwl_mvm_scan_size(mvm); 1298 1299 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1300 if (!mvm->scan_cmd) 1301 goto out_free; 1302 1303 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1304 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1305 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1306 1307 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1308 mvm->last_ebs_successful = true; 1309 1310 min_backoff = iwl_mvm_min_backoff(mvm); 1311 iwl_mvm_thermal_initialize(mvm, min_backoff); 1312 1313 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1314 memset(&mvm->rx_stats_v3, 0, 1315 sizeof(struct mvm_statistics_rx_v3)); 1316 else 1317 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1318 1319 mvm->debugfs_dir = dbgfs_dir; 1320 1321 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1322 1323 if (iwl_mvm_start_get_nvm(mvm)) { 1324 /* 1325 * Getting NVM failed while CSME is the owner, but we are 1326 * registered to MEI, we'll get the NVM later when it'll be 1327 * possible to get it from CSME. 1328 */ 1329 if (trans->csme_own && mvm->mei_registered) 1330 return op_mode; 1331 1332 goto out_thermal_exit; 1333 } 1334 1335 1336 if (iwl_mvm_start_post_nvm(mvm)) 1337 goto out_thermal_exit; 1338 1339 return op_mode; 1340 1341 out_thermal_exit: 1342 iwl_mvm_thermal_exit(mvm); 1343 if (mvm->mei_registered) { 1344 iwl_mei_start_unregister(); 1345 iwl_mei_unregister_complete(); 1346 } 1347 out_free: 1348 iwl_fw_flush_dumps(&mvm->fwrt); 1349 iwl_fw_runtime_free(&mvm->fwrt); 1350 1351 if (iwlmvm_mod_params.init_dbg) 1352 return op_mode; 1353 iwl_phy_db_free(mvm->phy_db); 1354 kfree(mvm->scan_cmd); 1355 iwl_trans_op_mode_leave(trans); 1356 1357 ieee80211_free_hw(mvm->hw); 1358 return NULL; 1359 } 1360 1361 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1362 { 1363 lockdep_assert_held(&mvm->mutex); 1364 1365 iwl_fw_cancel_timestamp(&mvm->fwrt); 1366 1367 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1368 1369 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1370 iwl_trans_stop_device(mvm->trans); 1371 iwl_free_fw_paging(&mvm->fwrt); 1372 iwl_fw_dump_conf_clear(&mvm->fwrt); 1373 iwl_mvm_mei_device_down(mvm); 1374 } 1375 1376 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1377 { 1378 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1379 int i; 1380 1381 if (mvm->mei_registered) { 1382 rtnl_lock(); 1383 iwl_mei_set_netdev(NULL); 1384 rtnl_unlock(); 1385 iwl_mei_start_unregister(); 1386 } 1387 1388 /* 1389 * After we unregister from mei, the worker can't be scheduled 1390 * anymore. 1391 */ 1392 cancel_work_sync(&mvm->sap_connected_wk); 1393 1394 iwl_mvm_leds_exit(mvm); 1395 1396 iwl_mvm_thermal_exit(mvm); 1397 1398 /* 1399 * If we couldn't get ownership on the device and we couldn't 1400 * get the NVM from CSME, we haven't registered to mac80211. 1401 * In that case, we didn't fail op_mode_start, because we are 1402 * waiting for CSME to allow us to get the NVM to register to 1403 * mac80211. If that didn't happen, we haven't registered to 1404 * mac80211, hence the if below. 1405 */ 1406 if (mvm->hw_registered) 1407 ieee80211_unregister_hw(mvm->hw); 1408 1409 kfree(mvm->scan_cmd); 1410 kfree(mvm->mcast_filter_cmd); 1411 mvm->mcast_filter_cmd = NULL; 1412 1413 kfree(mvm->error_recovery_buf); 1414 mvm->error_recovery_buf = NULL; 1415 1416 iwl_trans_op_mode_leave(mvm->trans); 1417 1418 iwl_phy_db_free(mvm->phy_db); 1419 mvm->phy_db = NULL; 1420 1421 kfree(mvm->nvm_data); 1422 kfree(mvm->mei_nvm_data); 1423 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1424 kfree(mvm->temp_nvm_data); 1425 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1426 kfree(mvm->nvm_sections[i].data); 1427 1428 cancel_delayed_work_sync(&mvm->tcm.work); 1429 1430 iwl_fw_runtime_free(&mvm->fwrt); 1431 mutex_destroy(&mvm->mutex); 1432 1433 if (mvm->mei_registered) 1434 iwl_mei_unregister_complete(); 1435 1436 ieee80211_free_hw(mvm->hw); 1437 } 1438 1439 struct iwl_async_handler_entry { 1440 struct list_head list; 1441 struct iwl_rx_cmd_buffer rxb; 1442 enum iwl_rx_handler_context context; 1443 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1444 }; 1445 1446 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1447 { 1448 struct iwl_async_handler_entry *entry, *tmp; 1449 1450 spin_lock_bh(&mvm->async_handlers_lock); 1451 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1452 iwl_free_rxb(&entry->rxb); 1453 list_del(&entry->list); 1454 kfree(entry); 1455 } 1456 spin_unlock_bh(&mvm->async_handlers_lock); 1457 } 1458 1459 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1460 { 1461 struct iwl_mvm *mvm = 1462 container_of(wk, struct iwl_mvm, async_handlers_wk); 1463 struct iwl_async_handler_entry *entry, *tmp; 1464 LIST_HEAD(local_list); 1465 1466 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1467 1468 /* 1469 * Sync with Rx path with a lock. Remove all the entries from this list, 1470 * add them to a local one (lock free), and then handle them. 1471 */ 1472 spin_lock_bh(&mvm->async_handlers_lock); 1473 list_splice_init(&mvm->async_handlers_list, &local_list); 1474 spin_unlock_bh(&mvm->async_handlers_lock); 1475 1476 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1477 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1478 mutex_lock(&mvm->mutex); 1479 entry->fn(mvm, &entry->rxb); 1480 iwl_free_rxb(&entry->rxb); 1481 list_del(&entry->list); 1482 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1483 mutex_unlock(&mvm->mutex); 1484 kfree(entry); 1485 } 1486 } 1487 1488 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1489 struct iwl_rx_packet *pkt) 1490 { 1491 struct iwl_fw_dbg_trigger_tlv *trig; 1492 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1493 int i; 1494 1495 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1496 FW_DBG_TRIGGER_FW_NOTIF); 1497 if (!trig) 1498 return; 1499 1500 cmds_trig = (void *)trig->data; 1501 1502 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1503 /* don't collect on CMD 0 */ 1504 if (!cmds_trig->cmds[i].cmd_id) 1505 break; 1506 1507 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1508 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1509 continue; 1510 1511 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1512 "CMD 0x%02x.%02x received", 1513 pkt->hdr.group_id, pkt->hdr.cmd); 1514 break; 1515 } 1516 } 1517 1518 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1519 struct iwl_rx_cmd_buffer *rxb, 1520 struct iwl_rx_packet *pkt) 1521 { 1522 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1523 int i; 1524 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1525 1526 iwl_dbg_tlv_time_point(&mvm->fwrt, 1527 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1528 iwl_mvm_rx_check_trigger(mvm, pkt); 1529 1530 /* 1531 * Do the notification wait before RX handlers so 1532 * even if the RX handler consumes the RXB we have 1533 * access to it in the notification wait entry. 1534 */ 1535 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1536 1537 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1538 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1539 struct iwl_async_handler_entry *entry; 1540 1541 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1542 continue; 1543 1544 if (unlikely(pkt_len < rx_h->min_size)) 1545 return; 1546 1547 if (rx_h->context == RX_HANDLER_SYNC) { 1548 rx_h->fn(mvm, rxb); 1549 return; 1550 } 1551 1552 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1553 /* we can't do much... */ 1554 if (!entry) 1555 return; 1556 1557 entry->rxb._page = rxb_steal_page(rxb); 1558 entry->rxb._offset = rxb->_offset; 1559 entry->rxb._rx_page_order = rxb->_rx_page_order; 1560 entry->fn = rx_h->fn; 1561 entry->context = rx_h->context; 1562 spin_lock(&mvm->async_handlers_lock); 1563 list_add_tail(&entry->list, &mvm->async_handlers_list); 1564 spin_unlock(&mvm->async_handlers_lock); 1565 schedule_work(&mvm->async_handlers_wk); 1566 break; 1567 } 1568 } 1569 1570 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1571 struct napi_struct *napi, 1572 struct iwl_rx_cmd_buffer *rxb) 1573 { 1574 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1575 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1576 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1577 1578 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1579 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1580 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1581 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1582 else 1583 iwl_mvm_rx_common(mvm, rxb, pkt); 1584 } 1585 1586 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1587 struct napi_struct *napi, 1588 struct iwl_rx_cmd_buffer *rxb) 1589 { 1590 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1591 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1592 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1593 1594 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1595 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1596 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1597 RX_QUEUES_NOTIFICATION))) 1598 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1599 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1600 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1601 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1602 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1603 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1604 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1605 else 1606 iwl_mvm_rx_common(mvm, rxb, pkt); 1607 } 1608 1609 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1610 const struct iwl_device_cmd *cmd) 1611 { 1612 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1613 1614 /* 1615 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1616 * commands that need to block the Tx queues. 1617 */ 1618 iwl_trans_block_txq_ptrs(mvm->trans, false); 1619 } 1620 1621 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1622 { 1623 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1624 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1625 } 1626 1627 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1628 int hw_queue, bool start) 1629 { 1630 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1631 struct ieee80211_sta *sta; 1632 struct ieee80211_txq *txq; 1633 struct iwl_mvm_txq *mvmtxq; 1634 int i; 1635 unsigned long tid_bitmap; 1636 struct iwl_mvm_sta *mvmsta; 1637 u8 sta_id; 1638 1639 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1640 mvm->tvqm_info[hw_queue].sta_id : 1641 mvm->queue_info[hw_queue].ra_sta_id; 1642 1643 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1644 return; 1645 1646 rcu_read_lock(); 1647 1648 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1649 if (IS_ERR_OR_NULL(sta)) 1650 goto out; 1651 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1652 1653 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1654 if (!start) 1655 ieee80211_stop_queues(mvm->hw); 1656 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1657 ieee80211_wake_queues(mvm->hw); 1658 1659 goto out; 1660 } 1661 1662 if (iwl_mvm_has_new_tx_api(mvm)) { 1663 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1664 1665 tid_bitmap = BIT(tid); 1666 } else { 1667 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1668 } 1669 1670 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1671 int tid = i; 1672 1673 if (tid == IWL_MAX_TID_COUNT) 1674 tid = IEEE80211_NUM_TIDS; 1675 1676 txq = sta->txq[tid]; 1677 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1678 mvmtxq->stopped = !start; 1679 1680 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1681 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1682 } 1683 1684 out: 1685 rcu_read_unlock(); 1686 } 1687 1688 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1689 { 1690 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1691 } 1692 1693 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1694 { 1695 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1696 } 1697 1698 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1699 { 1700 bool state = iwl_mvm_is_radio_killed(mvm); 1701 1702 if (state) 1703 wake_up(&mvm->rx_sync_waitq); 1704 1705 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1706 } 1707 1708 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1709 { 1710 if (state) 1711 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1712 else 1713 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1714 1715 iwl_mvm_set_rfkill_state(mvm); 1716 } 1717 1718 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1719 { 1720 return rcu_dereference_protected(mvm->csme_conn_info, 1721 lockdep_is_held(&mvm->mutex)); 1722 } 1723 1724 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1725 { 1726 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1727 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1728 bool unified = iwl_mvm_has_unified_ucode(mvm); 1729 1730 if (state) 1731 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1732 else 1733 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1734 1735 iwl_mvm_set_rfkill_state(mvm); 1736 1737 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1738 if (rfkill_safe_init_done) 1739 iwl_abort_notification_waits(&mvm->notif_wait); 1740 1741 /* 1742 * Don't ask the transport to stop the firmware. We'll do it 1743 * after cfg80211 takes us down. 1744 */ 1745 if (unified) 1746 return false; 1747 1748 /* 1749 * Stop the device if we run OPERATIONAL firmware or if we are in the 1750 * middle of the calibrations. 1751 */ 1752 return state && rfkill_safe_init_done; 1753 } 1754 1755 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1756 { 1757 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1758 struct ieee80211_tx_info *info; 1759 1760 info = IEEE80211_SKB_CB(skb); 1761 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1762 ieee80211_free_txskb(mvm->hw, skb); 1763 } 1764 1765 struct iwl_mvm_reprobe { 1766 struct device *dev; 1767 struct work_struct work; 1768 }; 1769 1770 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1771 { 1772 struct iwl_mvm_reprobe *reprobe; 1773 1774 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1775 if (device_reprobe(reprobe->dev)) 1776 dev_err(reprobe->dev, "reprobe failed!\n"); 1777 put_device(reprobe->dev); 1778 kfree(reprobe); 1779 module_put(THIS_MODULE); 1780 } 1781 1782 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1783 { 1784 iwl_abort_notification_waits(&mvm->notif_wait); 1785 iwl_dbg_tlv_del_timers(mvm->trans); 1786 1787 /* 1788 * This is a bit racy, but worst case we tell mac80211 about 1789 * a stopped/aborted scan when that was already done which 1790 * is not a problem. It is necessary to abort any os scan 1791 * here because mac80211 requires having the scan cleared 1792 * before restarting. 1793 * We'll reset the scan_status to NONE in restart cleanup in 1794 * the next start() call from mac80211. If restart isn't called 1795 * (no fw restart) scan status will stay busy. 1796 */ 1797 iwl_mvm_report_scan_aborted(mvm); 1798 1799 /* 1800 * If we're restarting already, don't cycle restarts. 1801 * If INIT fw asserted, it will likely fail again. 1802 * If WoWLAN fw asserted, don't restart either, mac80211 1803 * can't recover this since we're already half suspended. 1804 */ 1805 if (!mvm->fw_restart && fw_error) { 1806 iwl_fw_error_collect(&mvm->fwrt, false); 1807 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1808 &mvm->status)) { 1809 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1810 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1811 struct iwl_mvm_reprobe *reprobe; 1812 1813 IWL_ERR(mvm, 1814 "Firmware error during reconfiguration - reprobe!\n"); 1815 1816 /* 1817 * get a module reference to avoid doing this while unloading 1818 * anyway and to avoid scheduling a work with code that's 1819 * being removed. 1820 */ 1821 if (!try_module_get(THIS_MODULE)) { 1822 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1823 return; 1824 } 1825 1826 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1827 if (!reprobe) { 1828 module_put(THIS_MODULE); 1829 return; 1830 } 1831 reprobe->dev = get_device(mvm->trans->dev); 1832 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1833 schedule_work(&reprobe->work); 1834 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1835 &mvm->status)) { 1836 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1837 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1838 mvm->hw_registered && 1839 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1840 /* This should be first thing before trying to collect any 1841 * data to avoid endless loops if any HW error happens while 1842 * collecting debug data. 1843 */ 1844 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1845 1846 if (mvm->fw->ucode_capa.error_log_size) { 1847 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1848 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1849 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1850 1851 if (recover_buf) { 1852 mvm->error_recovery_buf = recover_buf; 1853 iwl_trans_read_mem_bytes(mvm->trans, 1854 src_addr, 1855 recover_buf, 1856 src_size); 1857 } 1858 } 1859 1860 iwl_fw_error_collect(&mvm->fwrt, false); 1861 1862 if (fw_error && mvm->fw_restart > 0) { 1863 mvm->fw_restart--; 1864 ieee80211_restart_hw(mvm->hw); 1865 } else if (mvm->fwrt.trans->dbg.restart_required) { 1866 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1867 mvm->fwrt.trans->dbg.restart_required = FALSE; 1868 ieee80211_restart_hw(mvm->hw); 1869 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1870 ieee80211_restart_hw(mvm->hw); 1871 } 1872 } 1873 } 1874 1875 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1876 { 1877 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1878 1879 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1880 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1881 &mvm->status)) 1882 iwl_mvm_dump_nic_error_log(mvm); 1883 1884 if (sync) { 1885 iwl_fw_error_collect(&mvm->fwrt, true); 1886 /* 1887 * Currently, the only case for sync=true is during 1888 * shutdown, so just stop in this case. If/when that 1889 * changes, we need to be a bit smarter here. 1890 */ 1891 return; 1892 } 1893 1894 /* 1895 * If the firmware crashes while we're already considering it 1896 * to be dead then don't ask for a restart, that cannot do 1897 * anything useful anyway. 1898 */ 1899 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1900 return; 1901 1902 iwl_mvm_nic_restart(mvm, false); 1903 } 1904 1905 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1906 { 1907 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1908 1909 WARN_ON(1); 1910 iwl_mvm_nic_restart(mvm, true); 1911 } 1912 1913 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1914 enum iwl_fw_ini_time_point tp_id, 1915 union iwl_dbg_tlv_tp_data *tp_data) 1916 { 1917 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1918 1919 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1920 } 1921 1922 #define IWL_MVM_COMMON_OPS \ 1923 /* these could be differentiated */ \ 1924 .async_cb = iwl_mvm_async_cb, \ 1925 .queue_full = iwl_mvm_stop_sw_queue, \ 1926 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1927 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1928 .free_skb = iwl_mvm_free_skb, \ 1929 .nic_error = iwl_mvm_nic_error, \ 1930 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1931 .nic_config = iwl_mvm_nic_config, \ 1932 /* as we only register one, these MUST be common! */ \ 1933 .start = iwl_op_mode_mvm_start, \ 1934 .stop = iwl_op_mode_mvm_stop, \ 1935 .time_point = iwl_op_mode_mvm_time_point 1936 1937 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1938 IWL_MVM_COMMON_OPS, 1939 .rx = iwl_mvm_rx, 1940 }; 1941 1942 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1943 struct napi_struct *napi, 1944 struct iwl_rx_cmd_buffer *rxb, 1945 unsigned int queue) 1946 { 1947 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1948 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1949 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1950 1951 if (unlikely(queue >= mvm->trans->num_rx_queues)) 1952 return; 1953 1954 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1955 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1956 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1957 RX_QUEUES_NOTIFICATION))) 1958 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1959 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1960 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1961 } 1962 1963 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1964 IWL_MVM_COMMON_OPS, 1965 .rx = iwl_mvm_rx_mq, 1966 .rx_rss = iwl_mvm_rx_mq_rss, 1967 }; 1968