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