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 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 96 radio_cfg_step, radio_cfg_dash); 97 98 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 99 return; 100 101 /* SKU control */ 102 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); 103 104 /* radio configuration */ 105 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 106 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 107 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 108 109 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 110 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 111 112 /* 113 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 114 * sampling, and shouldn't be set to any non-zero value. 115 * The same is supposed to be true of the other HW, but unsetting 116 * them (such as the 7260) causes automatic tests to fail on seemingly 117 * unrelated errors. Need to further investigate this, but for now 118 * we'll separate cases. 119 */ 120 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 121 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 122 123 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 124 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 125 126 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 127 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | 128 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 129 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 130 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 131 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 132 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 133 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 134 reg_val); 135 136 /* 137 * W/A : NIC is stuck in a reset state after Early PCIe power off 138 * (PCIe power is lost before PERST# is asserted), causing ME FW 139 * to lose ownership and not being able to obtain it back. 140 */ 141 if (!mvm->trans->cfg->apmg_not_supported) 142 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 143 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 144 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 145 } 146 147 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 148 struct iwl_rx_cmd_buffer *rxb) 149 { 150 struct iwl_rx_packet *pkt = rxb_addr(rxb); 151 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 152 struct ieee80211_supported_band *sband; 153 const struct ieee80211_sta_he_cap *he_cap; 154 struct ieee80211_vif *vif; 155 156 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 157 return; 158 159 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 160 if (!vif || vif->type != NL80211_IFTYPE_STATION) 161 return; 162 163 if (!vif->bss_conf.chandef.chan || 164 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 165 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 166 return; 167 168 if (!vif->cfg.assoc) 169 return; 170 171 /* this shouldn't happen *again*, ignore it */ 172 if (mvm->cca_40mhz_workaround) 173 return; 174 175 /* 176 * We'll decrement this on disconnect - so set to 2 since we'll 177 * still have to disconnect from the current AP first. 178 */ 179 mvm->cca_40mhz_workaround = 2; 180 181 /* 182 * This capability manipulation isn't really ideal, but it's the 183 * easiest choice - otherwise we'd have to do some major changes 184 * in mac80211 to support this, which isn't worth it. This does 185 * mean that userspace may have outdated information, but that's 186 * actually not an issue at all. 187 */ 188 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 189 190 WARN_ON(!sband->ht_cap.ht_supported); 191 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 192 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 193 194 he_cap = ieee80211_get_he_iftype_cap(sband, 195 ieee80211_vif_type_p2p(vif)); 196 197 if (he_cap) { 198 /* we know that ours is writable */ 199 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 200 201 WARN_ON(!he->has_he); 202 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 203 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 204 he->he_cap_elem.phy_cap_info[0] &= 205 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 206 } 207 208 ieee80211_disconnect(vif, true); 209 } 210 211 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif) 212 { 213 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 214 struct iwl_mvm *mvm = mvmvif->mvm; 215 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 216 217 if (mvm->fw_static_smps_request && 218 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 && 219 vif->bss_conf.he_support) 220 mode = IEEE80211_SMPS_STATIC; 221 222 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode); 223 } 224 225 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 226 struct ieee80211_vif *vif) 227 { 228 iwl_mvm_apply_fw_smps_request(vif); 229 } 230 231 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 232 struct iwl_rx_cmd_buffer *rxb) 233 { 234 struct iwl_rx_packet *pkt = rxb_addr(rxb); 235 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 236 237 /* 238 * We could pass it to the iterator data, but also need to remember 239 * it for new interfaces that are added while in this state. 240 */ 241 mvm->fw_static_smps_request = 242 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 243 ieee80211_iterate_interfaces(mvm->hw, 244 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, 245 iwl_mvm_intf_dual_chain_req, NULL); 246 } 247 248 /** 249 * enum iwl_rx_handler_context context for Rx handler 250 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 251 * which can't acquire mvm->mutex. 252 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 253 * (and only in this case!), it should be set as ASYNC. In that case, 254 * it will be called from a worker with mvm->mutex held. 255 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 256 * mutex itself, it will be called from a worker without mvm->mutex held. 257 */ 258 enum iwl_rx_handler_context { 259 RX_HANDLER_SYNC, 260 RX_HANDLER_ASYNC_LOCKED, 261 RX_HANDLER_ASYNC_UNLOCKED, 262 }; 263 264 /** 265 * struct iwl_rx_handlers handler for FW notification 266 * @cmd_id: command id 267 * @min_size: minimum size to expect for the notification 268 * @context: see &iwl_rx_handler_context 269 * @fn: the function is called when notification is received 270 */ 271 struct iwl_rx_handlers { 272 u16 cmd_id, min_size; 273 enum iwl_rx_handler_context context; 274 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 275 }; 276 277 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 278 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 279 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 280 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 281 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 282 { .cmd_id = _cmd_id, .fn = _fn, \ 283 .context = _context, .min_size = sizeof(_struct), } 284 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 285 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 286 .context = _context, .min_size = sizeof(_struct), } 287 288 /* 289 * Handlers for fw notifications 290 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 291 * This list should be in order of frequency for performance purposes. 292 * 293 * The handler can be one from three contexts, see &iwl_rx_handler_context 294 */ 295 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 296 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 297 struct iwl_mvm_tx_resp), 298 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 299 struct iwl_mvm_ba_notif), 300 301 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 302 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 303 struct iwl_tlc_update_notif), 304 305 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 306 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 307 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 308 RX_HANDLER_ASYNC_LOCKED), 309 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 310 RX_HANDLER_ASYNC_LOCKED), 311 312 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 313 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 314 struct iwl_ba_window_status_notif), 315 316 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 317 RX_HANDLER_SYNC, struct iwl_time_event_notif), 318 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 319 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 320 struct iwl_mvm_session_prot_notif), 321 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 322 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 323 324 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 325 struct iwl_mvm_eosp_notification), 326 327 RX_HANDLER(SCAN_ITERATION_COMPLETE, 328 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 329 struct iwl_lmac_scan_complete_notif), 330 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 331 iwl_mvm_rx_lmac_scan_complete_notif, 332 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 333 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 334 iwl_mvm_rx_scan_match_found, 335 RX_HANDLER_SYNC), 336 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 337 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 338 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 339 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 340 struct iwl_umac_scan_iter_complete_notif), 341 342 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 343 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 344 345 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 346 struct iwl_error_resp), 347 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 348 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 349 struct iwl_uapsd_misbehaving_ap_notif), 350 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 351 RX_HANDLER_ASYNC_LOCKED), 352 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 353 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 354 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 355 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 356 struct ct_kill_notif), 357 358 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 359 RX_HANDLER_ASYNC_LOCKED, 360 struct iwl_tdls_channel_switch_notif), 361 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 362 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 363 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 364 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 365 struct iwl_ftm_responder_stats), 366 367 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 368 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 369 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 370 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 371 372 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 373 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 374 struct iwl_mfu_assert_dump_notif), 375 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 376 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 377 struct iwl_stored_beacon_notif_v2), 378 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 379 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 380 struct iwl_mu_group_mgmt_notif), 381 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 382 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 383 struct iwl_mvm_pm_state_notification), 384 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 385 iwl_mvm_probe_resp_data_notif, 386 RX_HANDLER_ASYNC_LOCKED, 387 struct iwl_probe_resp_data_notif), 388 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 389 iwl_mvm_channel_switch_start_notif, 390 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 391 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, 392 iwl_mvm_channel_switch_error_notif, 393 RX_HANDLER_ASYNC_UNLOCKED, 394 struct iwl_channel_switch_error_notif), 395 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 396 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 397 struct iwl_datapath_monitor_notif), 398 399 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 400 iwl_mvm_rx_thermal_dual_chain_req, 401 RX_HANDLER_ASYNC_LOCKED, 402 struct iwl_thermal_dual_chain_request), 403 404 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, 405 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, 406 struct iwl_rfi_deactivate_notif), 407 }; 408 #undef RX_HANDLER 409 #undef RX_HANDLER_GRP 410 411 /* Please keep this array *SORTED* by hex value. 412 * Access is done through binary search 413 */ 414 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 415 HCMD_NAME(UCODE_ALIVE_NTFY), 416 HCMD_NAME(REPLY_ERROR), 417 HCMD_NAME(ECHO_CMD), 418 HCMD_NAME(INIT_COMPLETE_NOTIF), 419 HCMD_NAME(PHY_CONTEXT_CMD), 420 HCMD_NAME(DBG_CFG), 421 HCMD_NAME(SCAN_CFG_CMD), 422 HCMD_NAME(SCAN_REQ_UMAC), 423 HCMD_NAME(SCAN_ABORT_UMAC), 424 HCMD_NAME(SCAN_COMPLETE_UMAC), 425 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 426 HCMD_NAME(ADD_STA_KEY), 427 HCMD_NAME(ADD_STA), 428 HCMD_NAME(REMOVE_STA), 429 HCMD_NAME(FW_GET_ITEM_CMD), 430 HCMD_NAME(TX_CMD), 431 HCMD_NAME(SCD_QUEUE_CFG), 432 HCMD_NAME(TXPATH_FLUSH), 433 HCMD_NAME(MGMT_MCAST_KEY), 434 HCMD_NAME(WEP_KEY), 435 HCMD_NAME(SHARED_MEM_CFG), 436 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 437 HCMD_NAME(MAC_CONTEXT_CMD), 438 HCMD_NAME(TIME_EVENT_CMD), 439 HCMD_NAME(TIME_EVENT_NOTIFICATION), 440 HCMD_NAME(BINDING_CONTEXT_CMD), 441 HCMD_NAME(TIME_QUOTA_CMD), 442 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 443 HCMD_NAME(LEDS_CMD), 444 HCMD_NAME(LQ_CMD), 445 HCMD_NAME(FW_PAGING_BLOCK_CMD), 446 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 447 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 448 HCMD_NAME(HOT_SPOT_CMD), 449 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 450 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 451 HCMD_NAME(BT_COEX_CI), 452 HCMD_NAME(PHY_CONFIGURATION_CMD), 453 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 454 HCMD_NAME(PHY_DB_CMD), 455 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 456 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 457 HCMD_NAME(POWER_TABLE_CMD), 458 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 459 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 460 HCMD_NAME(NVM_ACCESS_CMD), 461 HCMD_NAME(BEACON_NOTIFICATION), 462 HCMD_NAME(BEACON_TEMPLATE_CMD), 463 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 464 HCMD_NAME(BT_CONFIG), 465 HCMD_NAME(STATISTICS_CMD), 466 HCMD_NAME(STATISTICS_NOTIFICATION), 467 HCMD_NAME(EOSP_NOTIFICATION), 468 HCMD_NAME(REDUCE_TX_POWER_CMD), 469 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 470 HCMD_NAME(TDLS_CONFIG_CMD), 471 HCMD_NAME(MAC_PM_POWER_TABLE), 472 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 473 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 474 HCMD_NAME(RSS_CONFIG_CMD), 475 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 476 HCMD_NAME(REPLY_RX_PHY_CMD), 477 HCMD_NAME(REPLY_RX_MPDU_CMD), 478 HCMD_NAME(BAR_FRAME_RELEASE), 479 HCMD_NAME(FRAME_RELEASE), 480 HCMD_NAME(BA_NOTIF), 481 HCMD_NAME(MCC_UPDATE_CMD), 482 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 483 HCMD_NAME(MARKER_CMD), 484 HCMD_NAME(BT_PROFILE_NOTIFICATION), 485 HCMD_NAME(MCAST_FILTER_CMD), 486 HCMD_NAME(REPLY_SF_CFG_CMD), 487 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 488 HCMD_NAME(D3_CONFIG_CMD), 489 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 490 HCMD_NAME(OFFLOADS_QUERY_CMD), 491 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 492 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 493 HCMD_NAME(WOWLAN_PATTERNS), 494 HCMD_NAME(WOWLAN_CONFIGURATION), 495 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 496 HCMD_NAME(WOWLAN_TKIP_PARAM), 497 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 498 HCMD_NAME(WOWLAN_GET_STATUSES), 499 HCMD_NAME(SCAN_ITERATION_COMPLETE), 500 HCMD_NAME(D0I3_END_CMD), 501 HCMD_NAME(LTR_CONFIG), 502 HCMD_NAME(LDBG_CONFIG_CMD), 503 }; 504 505 /* Please keep this array *SORTED* by hex value. 506 * Access is done through binary search 507 */ 508 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 509 HCMD_NAME(SHARED_MEM_CFG_CMD), 510 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 511 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 512 HCMD_NAME(RFI_CONFIG_CMD), 513 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 514 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 515 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 516 }; 517 518 /* Please keep this array *SORTED* by hex value. 519 * Access is done through binary search 520 */ 521 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 522 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 523 HCMD_NAME(SESSION_PROTECTION_CMD), 524 HCMD_NAME(SESSION_PROTECTION_NOTIF), 525 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 526 }; 527 528 /* Please keep this array *SORTED* by hex value. 529 * Access is done through binary search 530 */ 531 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 532 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 533 HCMD_NAME(CTDP_CONFIG_CMD), 534 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 535 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 536 HCMD_NAME(CT_KILL_NOTIFICATION), 537 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 538 }; 539 540 /* Please keep this array *SORTED* by hex value. 541 * Access is done through binary search 542 */ 543 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 544 HCMD_NAME(DQA_ENABLE_CMD), 545 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 546 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 547 HCMD_NAME(STA_HE_CTXT_CMD), 548 HCMD_NAME(RLC_CONFIG_CMD), 549 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 550 HCMD_NAME(TLC_MNG_CONFIG_CMD), 551 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 552 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 553 HCMD_NAME(SEC_KEY_CMD), 554 HCMD_NAME(MONITOR_NOTIF), 555 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 556 HCMD_NAME(STA_PM_NOTIF), 557 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 558 HCMD_NAME(RX_QUEUES_NOTIFICATION), 559 }; 560 561 /* Please keep this array *SORTED* by hex value. 562 * Access is done through binary search 563 */ 564 static const struct iwl_hcmd_names iwl_mvm_scan_names[] = { 565 HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF), 566 }; 567 568 /* Please keep this array *SORTED* by hex value. 569 * Access is done through binary search 570 */ 571 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 572 HCMD_NAME(TOF_RANGE_REQ_CMD), 573 HCMD_NAME(TOF_CONFIG_CMD), 574 HCMD_NAME(TOF_RANGE_ABORT_CMD), 575 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 576 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 577 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 578 HCMD_NAME(TOF_LC_NOTIF), 579 HCMD_NAME(TOF_RESPONDER_STATS), 580 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 581 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 582 }; 583 584 /* Please keep this array *SORTED* by hex value. 585 * Access is done through binary search 586 */ 587 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 588 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), 589 HCMD_NAME(WOWLAN_INFO_NOTIFICATION), 590 HCMD_NAME(D3_END_NOTIFICATION), 591 HCMD_NAME(STORED_BEACON_NTF), 592 }; 593 594 /* Please keep this array *SORTED* by hex value. 595 * Access is done through binary search 596 */ 597 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 598 HCMD_NAME(NVM_ACCESS_COMPLETE), 599 HCMD_NAME(NVM_GET_INFO), 600 HCMD_NAME(TAS_CONFIG), 601 }; 602 603 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 604 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 605 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 606 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 607 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 608 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 609 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 610 [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names), 611 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 612 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 613 [REGULATORY_AND_NVM_GROUP] = 614 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 615 }; 616 617 /* this forward declaration can avoid to export the function */ 618 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 619 620 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 621 { 622 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 623 u64 dflt_pwr_limit; 624 625 if (!backoff) 626 return 0; 627 628 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 629 630 while (backoff->pwr) { 631 if (dflt_pwr_limit >= backoff->pwr) 632 return backoff->backoff; 633 634 backoff++; 635 } 636 637 return 0; 638 } 639 640 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 641 { 642 struct iwl_mvm *mvm = 643 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 644 struct ieee80211_vif *tx_blocked_vif; 645 struct iwl_mvm_vif *mvmvif; 646 647 mutex_lock(&mvm->mutex); 648 649 tx_blocked_vif = 650 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 651 lockdep_is_held(&mvm->mutex)); 652 653 if (!tx_blocked_vif) 654 goto unlock; 655 656 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 657 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 658 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 659 unlock: 660 mutex_unlock(&mvm->mutex); 661 } 662 663 static void iwl_mvm_fwrt_dump_start(void *ctx) 664 { 665 struct iwl_mvm *mvm = ctx; 666 667 mutex_lock(&mvm->mutex); 668 } 669 670 static void iwl_mvm_fwrt_dump_end(void *ctx) 671 { 672 struct iwl_mvm *mvm = ctx; 673 674 mutex_unlock(&mvm->mutex); 675 } 676 677 static bool iwl_mvm_fwrt_fw_running(void *ctx) 678 { 679 return iwl_mvm_firmware_running(ctx); 680 } 681 682 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 683 { 684 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 685 int ret; 686 687 mutex_lock(&mvm->mutex); 688 ret = iwl_mvm_send_cmd(mvm, host_cmd); 689 mutex_unlock(&mvm->mutex); 690 691 return ret; 692 } 693 694 static bool iwl_mvm_d3_debug_enable(void *ctx) 695 { 696 return IWL_MVM_D3_DEBUG; 697 } 698 699 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 700 .dump_start = iwl_mvm_fwrt_dump_start, 701 .dump_end = iwl_mvm_fwrt_dump_end, 702 .fw_running = iwl_mvm_fwrt_fw_running, 703 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 704 .d3_debug_enable = iwl_mvm_d3_debug_enable, 705 }; 706 707 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 708 { 709 struct iwl_trans *trans = mvm->trans; 710 int ret; 711 712 if (trans->csme_own) { 713 if (WARN(!mvm->mei_registered, 714 "csme is owner, but we aren't registered to iwlmei\n")) 715 goto get_nvm_from_fw; 716 717 mvm->mei_nvm_data = iwl_mei_get_nvm(); 718 if (mvm->mei_nvm_data) { 719 /* 720 * mvm->mei_nvm_data is set and because of that, 721 * we'll load the NVM from the FW when we'll get 722 * ownership. 723 */ 724 mvm->nvm_data = 725 iwl_parse_mei_nvm_data(trans, trans->cfg, 726 mvm->mei_nvm_data, mvm->fw); 727 return 0; 728 } 729 730 IWL_ERR(mvm, 731 "Got a NULL NVM from CSME, trying to get it from the device\n"); 732 } 733 734 get_nvm_from_fw: 735 rtnl_lock(); 736 wiphy_lock(mvm->hw->wiphy); 737 mutex_lock(&mvm->mutex); 738 739 ret = iwl_trans_start_hw(mvm->trans); 740 if (ret) { 741 mutex_unlock(&mvm->mutex); 742 wiphy_unlock(mvm->hw->wiphy); 743 rtnl_unlock(); 744 return ret; 745 } 746 747 ret = iwl_run_init_mvm_ucode(mvm); 748 if (ret && ret != -ERFKILL) 749 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 750 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 751 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 752 ret = iwl_mvm_init_mcc(mvm); 753 } 754 755 if (!iwlmvm_mod_params.init_dbg || !ret) 756 iwl_mvm_stop_device(mvm); 757 758 mutex_unlock(&mvm->mutex); 759 wiphy_unlock(mvm->hw->wiphy); 760 rtnl_unlock(); 761 762 if (ret) 763 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 764 765 return ret; 766 } 767 768 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 769 { 770 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 771 int ret; 772 773 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 774 775 ret = iwl_mvm_mac_setup_register(mvm); 776 if (ret) 777 return ret; 778 779 mvm->hw_registered = true; 780 781 iwl_mvm_dbgfs_register(mvm); 782 783 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 784 mvm->mei_rfkill_blocked, 785 RFKILL_HARD_BLOCK_NOT_OWNER); 786 787 iwl_mvm_mei_set_sw_rfkill_state(mvm); 788 789 return 0; 790 } 791 792 struct iwl_mvm_frob_txf_data { 793 u8 *buf; 794 size_t buflen; 795 }; 796 797 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 798 struct ieee80211_vif *vif, 799 struct ieee80211_sta *sta, 800 struct ieee80211_key_conf *key, 801 void *data) 802 { 803 struct iwl_mvm_frob_txf_data *txf = data; 804 u8 keylen, match, matchend; 805 u8 *keydata; 806 size_t i; 807 808 switch (key->cipher) { 809 case WLAN_CIPHER_SUITE_CCMP: 810 keydata = key->key; 811 keylen = key->keylen; 812 break; 813 case WLAN_CIPHER_SUITE_WEP40: 814 case WLAN_CIPHER_SUITE_WEP104: 815 case WLAN_CIPHER_SUITE_TKIP: 816 /* 817 * WEP has short keys which might show up in the payload, 818 * and then you can deduce the key, so in this case just 819 * remove all FIFO data. 820 * For TKIP, we don't know the phase 2 keys here, so same. 821 */ 822 memset(txf->buf, 0xBB, txf->buflen); 823 return; 824 default: 825 return; 826 } 827 828 /* scan for key material and clear it out */ 829 match = 0; 830 for (i = 0; i < txf->buflen; i++) { 831 if (txf->buf[i] != keydata[match]) { 832 match = 0; 833 continue; 834 } 835 match++; 836 if (match == keylen) { 837 memset(txf->buf + i - keylen, 0xAA, keylen); 838 match = 0; 839 } 840 } 841 842 /* we're dealing with a FIFO, so check wrapped around data */ 843 matchend = match; 844 for (i = 0; match && i < keylen - match; i++) { 845 if (txf->buf[i] != keydata[match]) 846 break; 847 match++; 848 if (match == keylen) { 849 memset(txf->buf, 0xAA, i + 1); 850 memset(txf->buf + txf->buflen - matchend, 0xAA, 851 matchend); 852 break; 853 } 854 } 855 } 856 857 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 858 { 859 struct iwl_mvm_frob_txf_data txf = { 860 .buf = buf, 861 .buflen = buflen, 862 }; 863 struct iwl_mvm *mvm = ctx; 864 865 /* embedded key material exists only on old API */ 866 if (iwl_mvm_has_new_tx_api(mvm)) 867 return; 868 869 rcu_read_lock(); 870 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 871 rcu_read_unlock(); 872 } 873 874 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 875 { 876 /* we only use wide headers for commands */ 877 struct iwl_cmd_header_wide *hdr = hcmd; 878 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 879 880 if (len < sizeof(hdr)) 881 return; 882 883 /* all the commands we care about are in LONG_GROUP */ 884 if (hdr->group_id != LONG_GROUP) 885 return; 886 887 switch (hdr->cmd) { 888 case WEP_KEY: 889 case WOWLAN_TKIP_PARAM: 890 case WOWLAN_KEK_KCK_MATERIAL: 891 case ADD_STA_KEY: 892 /* 893 * blank out everything here, easier than dealing 894 * with the various versions of the command 895 */ 896 frob_end = INT_MAX; 897 break; 898 case MGMT_MCAST_KEY: 899 frob_start = offsetof(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)); 902 903 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 904 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 905 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 906 break; 907 } 908 909 if (frob_start >= frob_end) 910 return; 911 912 if (frob_end > len) 913 frob_end = len; 914 915 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 916 } 917 918 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 919 { 920 const struct iwl_dump_exclude *excl; 921 struct iwl_mvm *mvm = ctx; 922 int i; 923 924 switch (mvm->fwrt.cur_fw_img) { 925 case IWL_UCODE_INIT: 926 default: 927 /* not relevant */ 928 return; 929 case IWL_UCODE_REGULAR: 930 case IWL_UCODE_REGULAR_USNIFFER: 931 excl = mvm->fw->dump_excl; 932 break; 933 case IWL_UCODE_WOWLAN: 934 excl = mvm->fw->dump_excl_wowlan; 935 break; 936 } 937 938 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 939 sizeof(mvm->fw->dump_excl_wowlan)); 940 941 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 942 u32 start, end; 943 944 if (!excl[i].addr || !excl[i].size) 945 continue; 946 947 start = excl[i].addr; 948 end = start + excl[i].size; 949 950 if (end <= mem_addr || start >= mem_addr + buflen) 951 continue; 952 953 if (start < mem_addr) 954 start = mem_addr; 955 956 if (end > mem_addr + buflen) 957 end = mem_addr + buflen; 958 959 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 960 } 961 } 962 963 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 964 .frob_txf = iwl_mvm_frob_txf, 965 .frob_hcmd = iwl_mvm_frob_hcmd, 966 .frob_mem = iwl_mvm_frob_mem, 967 }; 968 969 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 970 { 971 struct iwl_mvm *mvm = priv; 972 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 973 974 /* 975 * This is protected by the guarantee that this function will not be 976 * called twice on two different threads 977 */ 978 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 979 980 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 981 if (!curr_conn_info) 982 return; 983 984 curr_conn_info->conn_info = *conn_info; 985 986 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 987 988 if (prev_conn_info) 989 kfree_rcu(prev_conn_info, rcu_head); 990 } 991 992 static void iwl_mvm_mei_rfkill(void *priv, bool blocked) 993 { 994 struct iwl_mvm *mvm = priv; 995 996 mvm->mei_rfkill_blocked = blocked; 997 if (!mvm->hw_registered) 998 return; 999 1000 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 1001 mvm->mei_rfkill_blocked, 1002 RFKILL_HARD_BLOCK_NOT_OWNER); 1003 } 1004 1005 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 1006 { 1007 struct iwl_mvm *mvm = priv; 1008 1009 if (!mvm->hw_registered || !mvm->csme_vif) 1010 return; 1011 1012 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 1013 } 1014 1015 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1016 { 1017 struct iwl_mvm *mvm = 1018 container_of(wk, struct iwl_mvm, sap_connected_wk); 1019 int ret; 1020 1021 ret = iwl_mvm_start_get_nvm(mvm); 1022 if (ret) 1023 goto out_free; 1024 1025 ret = iwl_mvm_start_post_nvm(mvm); 1026 if (ret) 1027 goto out_free; 1028 1029 return; 1030 1031 out_free: 1032 IWL_ERR(mvm, "Couldn't get started...\n"); 1033 iwl_mei_start_unregister(); 1034 iwl_mei_unregister_complete(); 1035 iwl_fw_flush_dumps(&mvm->fwrt); 1036 iwl_mvm_thermal_exit(mvm); 1037 iwl_fw_runtime_free(&mvm->fwrt); 1038 iwl_phy_db_free(mvm->phy_db); 1039 kfree(mvm->scan_cmd); 1040 iwl_trans_op_mode_leave(mvm->trans); 1041 kfree(mvm->nvm_data); 1042 kfree(mvm->mei_nvm_data); 1043 1044 ieee80211_free_hw(mvm->hw); 1045 } 1046 1047 static void iwl_mvm_mei_sap_connected(void *priv) 1048 { 1049 struct iwl_mvm *mvm = priv; 1050 1051 if (!mvm->hw_registered) 1052 schedule_work(&mvm->sap_connected_wk); 1053 } 1054 1055 static void iwl_mvm_mei_nic_stolen(void *priv) 1056 { 1057 struct iwl_mvm *mvm = priv; 1058 1059 rtnl_lock(); 1060 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1061 rtnl_unlock(); 1062 } 1063 1064 static const struct iwl_mei_ops mei_ops = { 1065 .me_conn_status = iwl_mvm_me_conn_status, 1066 .rfkill = iwl_mvm_mei_rfkill, 1067 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1068 .sap_connected = iwl_mvm_mei_sap_connected, 1069 .nic_stolen = iwl_mvm_mei_nic_stolen, 1070 }; 1071 1072 static struct iwl_op_mode * 1073 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1074 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1075 { 1076 struct ieee80211_hw *hw; 1077 struct iwl_op_mode *op_mode; 1078 struct iwl_mvm *mvm; 1079 struct iwl_trans_config trans_cfg = {}; 1080 static const u8 no_reclaim_cmds[] = { 1081 TX_CMD, 1082 }; 1083 u32 max_agg; 1084 size_t scan_size; 1085 u32 min_backoff; 1086 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1087 1088 /* 1089 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1090 * index all over the driver - check that its value corresponds to the 1091 * array size. 1092 */ 1093 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1094 IWL_MVM_STATION_COUNT_MAX); 1095 1096 /******************************** 1097 * 1. Allocating and configuring HW data 1098 ********************************/ 1099 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1100 sizeof(struct iwl_mvm), 1101 &iwl_mvm_hw_ops); 1102 if (!hw) 1103 return NULL; 1104 1105 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) 1106 max_agg = IEEE80211_MAX_AMPDU_BUF_EHT; 1107 else 1108 max_agg = IEEE80211_MAX_AMPDU_BUF_HE; 1109 1110 hw->max_rx_aggregation_subframes = max_agg; 1111 1112 if (cfg->max_tx_agg_size) 1113 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1114 else 1115 hw->max_tx_aggregation_subframes = max_agg; 1116 1117 op_mode = hw->priv; 1118 1119 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1120 mvm->dev = trans->dev; 1121 mvm->trans = trans; 1122 mvm->cfg = cfg; 1123 mvm->fw = fw; 1124 mvm->hw = hw; 1125 1126 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1127 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1128 1129 iwl_mvm_get_acpi_tables(mvm); 1130 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1131 1132 mvm->init_status = 0; 1133 1134 if (iwl_mvm_has_new_rx_api(mvm)) { 1135 op_mode->ops = &iwl_mvm_ops_mq; 1136 trans->rx_mpdu_cmd_hdr_size = 1137 (trans->trans_cfg->device_family >= 1138 IWL_DEVICE_FAMILY_AX210) ? 1139 sizeof(struct iwl_rx_mpdu_desc) : 1140 IWL_RX_DESC_SIZE_V1; 1141 } else { 1142 op_mode->ops = &iwl_mvm_ops; 1143 trans->rx_mpdu_cmd_hdr_size = 1144 sizeof(struct iwl_rx_mpdu_res_start); 1145 1146 if (WARN_ON(trans->num_rx_queues > 1)) 1147 goto out_free; 1148 } 1149 1150 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1151 1152 if (iwl_mvm_has_new_tx_api(mvm)) { 1153 /* 1154 * If we have the new TX/queue allocation API initialize them 1155 * all to invalid numbers. We'll rewrite the ones that we need 1156 * later, but that doesn't happen for all of them all of the 1157 * time (e.g. P2P Device is optional), and if a dynamic queue 1158 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1159 * iwl_mvm_is_static_queue() erroneously returns true, and we 1160 * might have things getting stuck. 1161 */ 1162 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1163 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1164 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1165 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1166 } else { 1167 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1168 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1169 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1170 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1171 } 1172 1173 mvm->sf_state = SF_UNINIT; 1174 if (iwl_mvm_has_unified_ucode(mvm)) 1175 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1176 else 1177 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1178 mvm->drop_bcn_ap_mode = true; 1179 1180 mutex_init(&mvm->mutex); 1181 spin_lock_init(&mvm->async_handlers_lock); 1182 INIT_LIST_HEAD(&mvm->time_event_list); 1183 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1184 INIT_LIST_HEAD(&mvm->async_handlers_list); 1185 spin_lock_init(&mvm->time_event_lock); 1186 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1187 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1188 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1189 1190 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1191 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1192 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1193 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1194 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1195 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1196 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1197 1198 init_waitqueue_head(&mvm->rx_sync_waitq); 1199 1200 mvm->queue_sync_state = 0; 1201 1202 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1203 1204 spin_lock_init(&mvm->tcm.lock); 1205 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1206 mvm->tcm.ts = jiffies; 1207 mvm->tcm.ll_ts = jiffies; 1208 mvm->tcm.uapsd_nonagg_ts = jiffies; 1209 1210 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1211 1212 mvm->cmd_ver.range_resp = 1213 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1214 TOF_RANGE_RESPONSE_NOTIF, 5); 1215 /* we only support up to version 9 */ 1216 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1217 goto out_free; 1218 1219 /* 1220 * Populate the state variables that the transport layer needs 1221 * to know about. 1222 */ 1223 trans_cfg.op_mode = op_mode; 1224 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1225 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1226 1227 switch (iwlwifi_mod_params.amsdu_size) { 1228 case IWL_AMSDU_DEF: 1229 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1230 break; 1231 case IWL_AMSDU_4K: 1232 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1233 break; 1234 case IWL_AMSDU_8K: 1235 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1236 break; 1237 case IWL_AMSDU_12K: 1238 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1239 break; 1240 default: 1241 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1242 iwlwifi_mod_params.amsdu_size); 1243 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1244 } 1245 1246 trans->wide_cmd_header = true; 1247 trans_cfg.bc_table_dword = 1248 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1249 1250 trans_cfg.command_groups = iwl_mvm_groups; 1251 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1252 1253 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1254 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1255 trans_cfg.scd_set_active = true; 1256 1257 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1258 driver_data[2]); 1259 1260 /* Set a short watchdog for the command queue */ 1261 trans_cfg.cmd_q_wdg_timeout = 1262 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1263 1264 snprintf(mvm->hw->wiphy->fw_version, 1265 sizeof(mvm->hw->wiphy->fw_version), 1266 "%s", fw->fw_version); 1267 1268 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1269 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1270 1271 trans_cfg.queue_alloc_cmd_ver = 1272 iwl_fw_lookup_cmd_ver(mvm->fw, 1273 WIDE_ID(DATA_PATH_GROUP, 1274 SCD_QUEUE_CONFIG_CMD), 1275 0); 1276 mvm->sta_remove_requires_queue_remove = 1277 trans_cfg.queue_alloc_cmd_ver > 0; 1278 1279 /* Configure transport layer */ 1280 iwl_trans_configure(mvm->trans, &trans_cfg); 1281 1282 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1283 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1284 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1285 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1286 sizeof(trans->dbg.conf_tlv)); 1287 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1288 1289 trans->iml = mvm->fw->iml; 1290 trans->iml_len = mvm->fw->iml_len; 1291 1292 /* set up notification wait support */ 1293 iwl_notification_wait_init(&mvm->notif_wait); 1294 1295 /* Init phy db */ 1296 mvm->phy_db = iwl_phy_db_init(trans); 1297 if (!mvm->phy_db) { 1298 IWL_ERR(mvm, "Cannot init phy_db\n"); 1299 goto out_free; 1300 } 1301 1302 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1303 mvm->trans->name, mvm->trans->hw_rev); 1304 1305 if (iwlwifi_mod_params.nvm_file) 1306 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1307 else 1308 IWL_DEBUG_EEPROM(mvm->trans->dev, 1309 "working without external nvm file\n"); 1310 1311 scan_size = iwl_mvm_scan_size(mvm); 1312 1313 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1314 if (!mvm->scan_cmd) 1315 goto out_free; 1316 mvm->scan_cmd_size = scan_size; 1317 1318 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1319 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1320 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1321 1322 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1323 mvm->last_ebs_successful = true; 1324 1325 min_backoff = iwl_mvm_min_backoff(mvm); 1326 iwl_mvm_thermal_initialize(mvm, min_backoff); 1327 1328 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1329 memset(&mvm->rx_stats_v3, 0, 1330 sizeof(struct mvm_statistics_rx_v3)); 1331 else 1332 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1333 1334 mvm->debugfs_dir = dbgfs_dir; 1335 1336 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1337 1338 if (iwl_mvm_start_get_nvm(mvm)) { 1339 /* 1340 * Getting NVM failed while CSME is the owner, but we are 1341 * registered to MEI, we'll get the NVM later when it'll be 1342 * possible to get it from CSME. 1343 */ 1344 if (trans->csme_own && mvm->mei_registered) 1345 return op_mode; 1346 1347 goto out_thermal_exit; 1348 } 1349 1350 1351 if (iwl_mvm_start_post_nvm(mvm)) 1352 goto out_thermal_exit; 1353 1354 return op_mode; 1355 1356 out_thermal_exit: 1357 iwl_mvm_thermal_exit(mvm); 1358 if (mvm->mei_registered) { 1359 iwl_mei_start_unregister(); 1360 iwl_mei_unregister_complete(); 1361 } 1362 out_free: 1363 iwl_fw_flush_dumps(&mvm->fwrt); 1364 iwl_fw_runtime_free(&mvm->fwrt); 1365 1366 if (iwlmvm_mod_params.init_dbg) 1367 return op_mode; 1368 iwl_phy_db_free(mvm->phy_db); 1369 kfree(mvm->scan_cmd); 1370 iwl_trans_op_mode_leave(trans); 1371 1372 ieee80211_free_hw(mvm->hw); 1373 return NULL; 1374 } 1375 1376 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1377 { 1378 lockdep_assert_held(&mvm->mutex); 1379 1380 iwl_fw_cancel_timestamp(&mvm->fwrt); 1381 1382 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1383 1384 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1385 iwl_trans_stop_device(mvm->trans); 1386 iwl_free_fw_paging(&mvm->fwrt); 1387 iwl_fw_dump_conf_clear(&mvm->fwrt); 1388 iwl_mvm_mei_device_state(mvm, false); 1389 } 1390 1391 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1392 { 1393 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1394 int i; 1395 1396 if (mvm->mei_registered) { 1397 rtnl_lock(); 1398 iwl_mei_set_netdev(NULL); 1399 rtnl_unlock(); 1400 iwl_mei_start_unregister(); 1401 } 1402 1403 /* 1404 * After we unregister from mei, the worker can't be scheduled 1405 * anymore. 1406 */ 1407 cancel_work_sync(&mvm->sap_connected_wk); 1408 1409 iwl_mvm_leds_exit(mvm); 1410 1411 iwl_mvm_thermal_exit(mvm); 1412 1413 /* 1414 * If we couldn't get ownership on the device and we couldn't 1415 * get the NVM from CSME, we haven't registered to mac80211. 1416 * In that case, we didn't fail op_mode_start, because we are 1417 * waiting for CSME to allow us to get the NVM to register to 1418 * mac80211. If that didn't happen, we haven't registered to 1419 * mac80211, hence the if below. 1420 */ 1421 if (mvm->hw_registered) 1422 ieee80211_unregister_hw(mvm->hw); 1423 1424 kfree(mvm->scan_cmd); 1425 kfree(mvm->mcast_filter_cmd); 1426 mvm->mcast_filter_cmd = NULL; 1427 1428 kfree(mvm->error_recovery_buf); 1429 mvm->error_recovery_buf = NULL; 1430 1431 iwl_trans_op_mode_leave(mvm->trans); 1432 1433 iwl_phy_db_free(mvm->phy_db); 1434 mvm->phy_db = NULL; 1435 1436 kfree(mvm->nvm_data); 1437 kfree(mvm->mei_nvm_data); 1438 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1439 kfree(mvm->temp_nvm_data); 1440 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1441 kfree(mvm->nvm_sections[i].data); 1442 1443 cancel_delayed_work_sync(&mvm->tcm.work); 1444 1445 iwl_fw_runtime_free(&mvm->fwrt); 1446 mutex_destroy(&mvm->mutex); 1447 1448 if (mvm->mei_registered) 1449 iwl_mei_unregister_complete(); 1450 1451 ieee80211_free_hw(mvm->hw); 1452 } 1453 1454 struct iwl_async_handler_entry { 1455 struct list_head list; 1456 struct iwl_rx_cmd_buffer rxb; 1457 enum iwl_rx_handler_context context; 1458 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1459 }; 1460 1461 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1462 { 1463 struct iwl_async_handler_entry *entry, *tmp; 1464 1465 spin_lock_bh(&mvm->async_handlers_lock); 1466 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1467 iwl_free_rxb(&entry->rxb); 1468 list_del(&entry->list); 1469 kfree(entry); 1470 } 1471 spin_unlock_bh(&mvm->async_handlers_lock); 1472 } 1473 1474 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1475 { 1476 struct iwl_mvm *mvm = 1477 container_of(wk, struct iwl_mvm, async_handlers_wk); 1478 struct iwl_async_handler_entry *entry, *tmp; 1479 LIST_HEAD(local_list); 1480 1481 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1482 1483 /* 1484 * Sync with Rx path with a lock. Remove all the entries from this list, 1485 * add them to a local one (lock free), and then handle them. 1486 */ 1487 spin_lock_bh(&mvm->async_handlers_lock); 1488 list_splice_init(&mvm->async_handlers_list, &local_list); 1489 spin_unlock_bh(&mvm->async_handlers_lock); 1490 1491 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1492 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1493 mutex_lock(&mvm->mutex); 1494 entry->fn(mvm, &entry->rxb); 1495 iwl_free_rxb(&entry->rxb); 1496 list_del(&entry->list); 1497 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1498 mutex_unlock(&mvm->mutex); 1499 kfree(entry); 1500 } 1501 } 1502 1503 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1504 struct iwl_rx_packet *pkt) 1505 { 1506 struct iwl_fw_dbg_trigger_tlv *trig; 1507 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1508 int i; 1509 1510 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1511 FW_DBG_TRIGGER_FW_NOTIF); 1512 if (!trig) 1513 return; 1514 1515 cmds_trig = (void *)trig->data; 1516 1517 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1518 /* don't collect on CMD 0 */ 1519 if (!cmds_trig->cmds[i].cmd_id) 1520 break; 1521 1522 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1523 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1524 continue; 1525 1526 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1527 "CMD 0x%02x.%02x received", 1528 pkt->hdr.group_id, pkt->hdr.cmd); 1529 break; 1530 } 1531 } 1532 1533 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1534 struct iwl_rx_cmd_buffer *rxb, 1535 struct iwl_rx_packet *pkt) 1536 { 1537 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1538 int i; 1539 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1540 1541 iwl_dbg_tlv_time_point(&mvm->fwrt, 1542 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1543 iwl_mvm_rx_check_trigger(mvm, pkt); 1544 1545 /* 1546 * Do the notification wait before RX handlers so 1547 * even if the RX handler consumes the RXB we have 1548 * access to it in the notification wait entry. 1549 */ 1550 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1551 1552 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1553 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1554 struct iwl_async_handler_entry *entry; 1555 1556 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1557 continue; 1558 1559 if (unlikely(pkt_len < rx_h->min_size)) 1560 return; 1561 1562 if (rx_h->context == RX_HANDLER_SYNC) { 1563 rx_h->fn(mvm, rxb); 1564 return; 1565 } 1566 1567 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1568 /* we can't do much... */ 1569 if (!entry) 1570 return; 1571 1572 entry->rxb._page = rxb_steal_page(rxb); 1573 entry->rxb._offset = rxb->_offset; 1574 entry->rxb._rx_page_order = rxb->_rx_page_order; 1575 entry->fn = rx_h->fn; 1576 entry->context = rx_h->context; 1577 spin_lock(&mvm->async_handlers_lock); 1578 list_add_tail(&entry->list, &mvm->async_handlers_list); 1579 spin_unlock(&mvm->async_handlers_lock); 1580 schedule_work(&mvm->async_handlers_wk); 1581 break; 1582 } 1583 } 1584 1585 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1586 struct napi_struct *napi, 1587 struct iwl_rx_cmd_buffer *rxb) 1588 { 1589 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1590 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1591 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1592 1593 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1594 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1595 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1596 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1597 else 1598 iwl_mvm_rx_common(mvm, rxb, pkt); 1599 } 1600 1601 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1602 struct napi_struct *napi, 1603 struct iwl_rx_cmd_buffer *rxb) 1604 { 1605 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1606 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1607 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1608 1609 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1610 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1611 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1612 RX_QUEUES_NOTIFICATION))) 1613 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1614 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1615 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1616 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1617 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1618 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1619 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1620 else 1621 iwl_mvm_rx_common(mvm, rxb, pkt); 1622 } 1623 1624 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1625 const struct iwl_device_cmd *cmd) 1626 { 1627 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1628 1629 /* 1630 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1631 * commands that need to block the Tx queues. 1632 */ 1633 iwl_trans_block_txq_ptrs(mvm->trans, false); 1634 } 1635 1636 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1637 { 1638 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1639 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1640 } 1641 1642 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1643 int hw_queue, bool start) 1644 { 1645 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1646 struct ieee80211_sta *sta; 1647 struct ieee80211_txq *txq; 1648 struct iwl_mvm_txq *mvmtxq; 1649 int i; 1650 unsigned long tid_bitmap; 1651 struct iwl_mvm_sta *mvmsta; 1652 u8 sta_id; 1653 1654 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1655 mvm->tvqm_info[hw_queue].sta_id : 1656 mvm->queue_info[hw_queue].ra_sta_id; 1657 1658 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1659 return; 1660 1661 rcu_read_lock(); 1662 1663 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1664 if (IS_ERR_OR_NULL(sta)) 1665 goto out; 1666 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1667 1668 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1669 if (!start) 1670 ieee80211_stop_queues(mvm->hw); 1671 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1672 ieee80211_wake_queues(mvm->hw); 1673 1674 goto out; 1675 } 1676 1677 if (iwl_mvm_has_new_tx_api(mvm)) { 1678 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1679 1680 tid_bitmap = BIT(tid); 1681 } else { 1682 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1683 } 1684 1685 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1686 int tid = i; 1687 1688 if (tid == IWL_MAX_TID_COUNT) 1689 tid = IEEE80211_NUM_TIDS; 1690 1691 txq = sta->txq[tid]; 1692 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1693 mvmtxq->stopped = !start; 1694 1695 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1696 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1697 } 1698 1699 out: 1700 rcu_read_unlock(); 1701 } 1702 1703 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1704 { 1705 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1706 } 1707 1708 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1709 { 1710 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1711 } 1712 1713 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1714 { 1715 bool state = iwl_mvm_is_radio_killed(mvm); 1716 1717 if (state) 1718 wake_up(&mvm->rx_sync_waitq); 1719 1720 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1721 } 1722 1723 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1724 { 1725 if (state) 1726 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1727 else 1728 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1729 1730 iwl_mvm_set_rfkill_state(mvm); 1731 } 1732 1733 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1734 { 1735 return rcu_dereference_protected(mvm->csme_conn_info, 1736 lockdep_is_held(&mvm->mutex)); 1737 } 1738 1739 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1740 { 1741 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1742 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1743 bool unified = iwl_mvm_has_unified_ucode(mvm); 1744 1745 if (state) 1746 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1747 else 1748 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1749 1750 iwl_mvm_set_rfkill_state(mvm); 1751 1752 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1753 if (rfkill_safe_init_done) 1754 iwl_abort_notification_waits(&mvm->notif_wait); 1755 1756 /* 1757 * Don't ask the transport to stop the firmware. We'll do it 1758 * after cfg80211 takes us down. 1759 */ 1760 if (unified) 1761 return false; 1762 1763 /* 1764 * Stop the device if we run OPERATIONAL firmware or if we are in the 1765 * middle of the calibrations. 1766 */ 1767 return state && rfkill_safe_init_done; 1768 } 1769 1770 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1771 { 1772 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1773 struct ieee80211_tx_info *info; 1774 1775 info = IEEE80211_SKB_CB(skb); 1776 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1777 ieee80211_free_txskb(mvm->hw, skb); 1778 } 1779 1780 struct iwl_mvm_reprobe { 1781 struct device *dev; 1782 struct work_struct work; 1783 }; 1784 1785 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1786 { 1787 struct iwl_mvm_reprobe *reprobe; 1788 1789 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1790 if (device_reprobe(reprobe->dev)) 1791 dev_err(reprobe->dev, "reprobe failed!\n"); 1792 put_device(reprobe->dev); 1793 kfree(reprobe); 1794 module_put(THIS_MODULE); 1795 } 1796 1797 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1798 { 1799 iwl_abort_notification_waits(&mvm->notif_wait); 1800 iwl_dbg_tlv_del_timers(mvm->trans); 1801 1802 /* 1803 * This is a bit racy, but worst case we tell mac80211 about 1804 * a stopped/aborted scan when that was already done which 1805 * is not a problem. It is necessary to abort any os scan 1806 * here because mac80211 requires having the scan cleared 1807 * before restarting. 1808 * We'll reset the scan_status to NONE in restart cleanup in 1809 * the next start() call from mac80211. If restart isn't called 1810 * (no fw restart) scan status will stay busy. 1811 */ 1812 iwl_mvm_report_scan_aborted(mvm); 1813 1814 /* 1815 * If we're restarting already, don't cycle restarts. 1816 * If INIT fw asserted, it will likely fail again. 1817 * If WoWLAN fw asserted, don't restart either, mac80211 1818 * can't recover this since we're already half suspended. 1819 */ 1820 if (!mvm->fw_restart && fw_error) { 1821 iwl_fw_error_collect(&mvm->fwrt, false); 1822 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1823 &mvm->status)) { 1824 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1825 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1826 struct iwl_mvm_reprobe *reprobe; 1827 1828 IWL_ERR(mvm, 1829 "Firmware error during reconfiguration - reprobe!\n"); 1830 1831 /* 1832 * get a module reference to avoid doing this while unloading 1833 * anyway and to avoid scheduling a work with code that's 1834 * being removed. 1835 */ 1836 if (!try_module_get(THIS_MODULE)) { 1837 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1838 return; 1839 } 1840 1841 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1842 if (!reprobe) { 1843 module_put(THIS_MODULE); 1844 return; 1845 } 1846 reprobe->dev = get_device(mvm->trans->dev); 1847 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1848 schedule_work(&reprobe->work); 1849 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1850 &mvm->status)) { 1851 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1852 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1853 mvm->hw_registered && 1854 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1855 /* This should be first thing before trying to collect any 1856 * data to avoid endless loops if any HW error happens while 1857 * collecting debug data. 1858 */ 1859 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1860 1861 if (mvm->fw->ucode_capa.error_log_size) { 1862 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1863 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1864 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1865 1866 if (recover_buf) { 1867 mvm->error_recovery_buf = recover_buf; 1868 iwl_trans_read_mem_bytes(mvm->trans, 1869 src_addr, 1870 recover_buf, 1871 src_size); 1872 } 1873 } 1874 1875 iwl_fw_error_collect(&mvm->fwrt, false); 1876 1877 if (fw_error && mvm->fw_restart > 0) { 1878 mvm->fw_restart--; 1879 ieee80211_restart_hw(mvm->hw); 1880 } else if (mvm->fwrt.trans->dbg.restart_required) { 1881 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1882 mvm->fwrt.trans->dbg.restart_required = FALSE; 1883 ieee80211_restart_hw(mvm->hw); 1884 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1885 ieee80211_restart_hw(mvm->hw); 1886 } 1887 } 1888 } 1889 1890 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1891 { 1892 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1893 1894 if (mvm->pldr_sync) 1895 return; 1896 1897 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1898 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1899 &mvm->status)) 1900 iwl_mvm_dump_nic_error_log(mvm); 1901 1902 if (sync) { 1903 iwl_fw_error_collect(&mvm->fwrt, true); 1904 /* 1905 * Currently, the only case for sync=true is during 1906 * shutdown, so just stop in this case. If/when that 1907 * changes, we need to be a bit smarter here. 1908 */ 1909 return; 1910 } 1911 1912 /* 1913 * If the firmware crashes while we're already considering it 1914 * to be dead then don't ask for a restart, that cannot do 1915 * anything useful anyway. 1916 */ 1917 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1918 return; 1919 1920 iwl_mvm_nic_restart(mvm, false); 1921 } 1922 1923 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1924 { 1925 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1926 1927 WARN_ON(1); 1928 iwl_mvm_nic_restart(mvm, true); 1929 } 1930 1931 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1932 enum iwl_fw_ini_time_point tp_id, 1933 union iwl_dbg_tlv_tp_data *tp_data) 1934 { 1935 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1936 1937 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1938 } 1939 1940 #define IWL_MVM_COMMON_OPS \ 1941 /* these could be differentiated */ \ 1942 .async_cb = iwl_mvm_async_cb, \ 1943 .queue_full = iwl_mvm_stop_sw_queue, \ 1944 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1945 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1946 .free_skb = iwl_mvm_free_skb, \ 1947 .nic_error = iwl_mvm_nic_error, \ 1948 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1949 .nic_config = iwl_mvm_nic_config, \ 1950 /* as we only register one, these MUST be common! */ \ 1951 .start = iwl_op_mode_mvm_start, \ 1952 .stop = iwl_op_mode_mvm_stop, \ 1953 .time_point = iwl_op_mode_mvm_time_point 1954 1955 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1956 IWL_MVM_COMMON_OPS, 1957 .rx = iwl_mvm_rx, 1958 }; 1959 1960 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1961 struct napi_struct *napi, 1962 struct iwl_rx_cmd_buffer *rxb, 1963 unsigned int queue) 1964 { 1965 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1966 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1967 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1968 1969 if (unlikely(queue >= mvm->trans->num_rx_queues)) 1970 return; 1971 1972 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1973 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1974 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1975 RX_QUEUES_NOTIFICATION))) 1976 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1977 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1978 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1979 } 1980 1981 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1982 IWL_MVM_COMMON_OPS, 1983 .rx = iwl_mvm_rx_mq, 1984 .rx_rss = iwl_mvm_rx_mq_rss, 1985 }; 1986