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 #if defined(__FreeBSD__) 8 #define LINUXKPI_PARAM_PREFIX iwlwifi_mvm_ 9 #endif 10 #include <linux/module.h> 11 #if defined(__linux__) 12 #include <linux/rtnetlink.h> 13 #endif 14 #include <linux/vmalloc.h> 15 #include <net/mac80211.h> 16 17 #include "fw/notif-wait.h" 18 #include "iwl-trans.h" 19 #include "iwl-op-mode.h" 20 #include "fw/img.h" 21 #include "iwl-debug.h" 22 #include "iwl-drv.h" 23 #include "iwl-modparams.h" 24 #include "mvm.h" 25 #include "iwl-phy-db.h" 26 #include "iwl-eeprom-parse.h" 27 #include "iwl-csr.h" 28 #include "iwl-io.h" 29 #include "iwl-prph.h" 30 #include "rs.h" 31 #include "fw/api/scan.h" 32 #include "fw/api/rfi.h" 33 #include "time-event.h" 34 #include "fw-api.h" 35 #include "fw/acpi.h" 36 #include "fw/uefi.h" 37 38 #if defined(__linux__) 39 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 40 MODULE_LICENSE("GPL"); 41 #elif defined(__FreeBSD__) 42 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN/AC/AX based driver for FreeBSD" 43 MODULE_LICENSE("BSD"); 44 #endif 45 MODULE_DESCRIPTION(DRV_DESCRIPTION); 46 MODULE_IMPORT_NS(IWLWIFI); 47 48 static const struct iwl_op_mode_ops iwl_mvm_ops; 49 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 50 51 struct iwl_mvm_mod_params iwlmvm_mod_params = { 52 #if defined(__FreeBSD__) 53 .power_scheme = IWL_POWER_SCHEME_CAM, /* disable default PS */ 54 #else 55 .power_scheme = IWL_POWER_SCHEME_BPS, 56 #endif 57 /* rest of fields are 0 by default */ 58 }; 59 60 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 61 MODULE_PARM_DESC(init_dbg, 62 "set to true to debug an ASSERT in INIT fw (default: false"); 63 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 64 MODULE_PARM_DESC(power_scheme, 65 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 66 67 /* 68 * module init and exit functions 69 */ 70 static int __init iwl_mvm_init(void) 71 { 72 int ret; 73 74 ret = iwl_mvm_rate_control_register(); 75 if (ret) { 76 pr_err("Unable to register rate control algorithm: %d\n", ret); 77 return ret; 78 } 79 80 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 81 if (ret) 82 pr_err("Unable to register MVM op_mode: %d\n", ret); 83 84 return ret; 85 } 86 #if defined(__linux__) 87 module_init(iwl_mvm_init); 88 #elif defined(__FreeBSD__) 89 module_init_order(iwl_mvm_init, SI_ORDER_SECOND); 90 #endif 91 92 static void __exit iwl_mvm_exit(void) 93 { 94 iwl_opmode_deregister("iwlmvm"); 95 iwl_mvm_rate_control_unregister(); 96 } 97 module_exit(iwl_mvm_exit); 98 99 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 100 { 101 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 102 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 103 u32 reg_val; 104 u32 phy_config = iwl_mvm_get_phy_config(mvm); 105 106 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 107 FW_PHY_CFG_RADIO_TYPE_POS; 108 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 109 FW_PHY_CFG_RADIO_STEP_POS; 110 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 111 FW_PHY_CFG_RADIO_DASH_POS; 112 113 /* SKU control */ 114 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); 115 116 /* radio configuration */ 117 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 118 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 119 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 120 121 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 122 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 123 124 /* 125 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 126 * sampling, and shouldn't be set to any non-zero value. 127 * The same is supposed to be true of the other HW, but unsetting 128 * them (such as the 7260) causes automatic tests to fail on seemingly 129 * unrelated errors. Need to further investigate this, but for now 130 * we'll separate cases. 131 */ 132 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 133 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 134 135 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 136 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 137 138 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 139 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | 140 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 141 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 142 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 143 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 144 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 145 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 146 reg_val); 147 148 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 149 radio_cfg_step, radio_cfg_dash); 150 151 /* 152 * W/A : NIC is stuck in a reset state after Early PCIe power off 153 * (PCIe power is lost before PERST# is asserted), causing ME FW 154 * to lose ownership and not being able to obtain it back. 155 */ 156 if (!mvm->trans->cfg->apmg_not_supported) 157 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 158 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 159 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 160 } 161 162 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 163 struct iwl_rx_cmd_buffer *rxb) 164 { 165 struct iwl_rx_packet *pkt = rxb_addr(rxb); 166 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 167 struct ieee80211_supported_band *sband; 168 const struct ieee80211_sta_he_cap *he_cap; 169 struct ieee80211_vif *vif; 170 171 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 172 return; 173 174 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 175 if (!vif || vif->type != NL80211_IFTYPE_STATION) 176 return; 177 178 if (!vif->bss_conf.chandef.chan || 179 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 180 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 181 return; 182 183 if (!vif->bss_conf.assoc) 184 return; 185 186 /* this shouldn't happen *again*, ignore it */ 187 if (mvm->cca_40mhz_workaround) 188 return; 189 190 /* 191 * We'll decrement this on disconnect - so set to 2 since we'll 192 * still have to disconnect from the current AP first. 193 */ 194 mvm->cca_40mhz_workaround = 2; 195 196 /* 197 * This capability manipulation isn't really ideal, but it's the 198 * easiest choice - otherwise we'd have to do some major changes 199 * in mac80211 to support this, which isn't worth it. This does 200 * mean that userspace may have outdated information, but that's 201 * actually not an issue at all. 202 */ 203 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 204 205 WARN_ON(!sband->ht_cap.ht_supported); 206 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 207 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 208 209 he_cap = ieee80211_get_he_iftype_cap(sband, 210 ieee80211_vif_type_p2p(vif)); 211 212 if (he_cap) { 213 /* we know that ours is writable */ 214 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 215 216 WARN_ON(!he->has_he); 217 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 218 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 219 he->he_cap_elem.phy_cap_info[0] &= 220 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 221 } 222 223 ieee80211_disconnect(vif, true); 224 } 225 226 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif) 227 { 228 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 229 struct iwl_mvm *mvm = mvmvif->mvm; 230 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 231 232 if (mvm->fw_static_smps_request && 233 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 && 234 vif->bss_conf.he_support) 235 mode = IEEE80211_SMPS_STATIC; 236 237 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode); 238 } 239 240 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 241 struct ieee80211_vif *vif) 242 { 243 iwl_mvm_apply_fw_smps_request(vif); 244 } 245 246 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 247 struct iwl_rx_cmd_buffer *rxb) 248 { 249 struct iwl_rx_packet *pkt = rxb_addr(rxb); 250 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 251 252 /* 253 * We could pass it to the iterator data, but also need to remember 254 * it for new interfaces that are added while in this state. 255 */ 256 mvm->fw_static_smps_request = 257 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 258 ieee80211_iterate_interfaces(mvm->hw, 259 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, 260 iwl_mvm_intf_dual_chain_req, NULL); 261 } 262 263 /** 264 * enum iwl_rx_handler_context context for Rx handler 265 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 266 * which can't acquire mvm->mutex. 267 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 268 * (and only in this case!), it should be set as ASYNC. In that case, 269 * it will be called from a worker with mvm->mutex held. 270 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 271 * mutex itself, it will be called from a worker without mvm->mutex held. 272 */ 273 enum iwl_rx_handler_context { 274 RX_HANDLER_SYNC, 275 RX_HANDLER_ASYNC_LOCKED, 276 RX_HANDLER_ASYNC_UNLOCKED, 277 }; 278 279 /** 280 * struct iwl_rx_handlers handler for FW notification 281 * @cmd_id: command id 282 * @min_size: minimum size to expect for the notification 283 * @context: see &iwl_rx_handler_context 284 * @fn: the function is called when notification is received 285 */ 286 struct iwl_rx_handlers { 287 u16 cmd_id, min_size; 288 enum iwl_rx_handler_context context; 289 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 290 }; 291 292 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 293 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 294 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 295 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 296 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 297 { .cmd_id = _cmd_id, .fn = _fn, \ 298 .context = _context, .min_size = sizeof(_struct), } 299 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 300 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 301 .context = _context, .min_size = sizeof(_struct), } 302 303 /* 304 * Handlers for fw notifications 305 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 306 * This list should be in order of frequency for performance purposes. 307 * 308 * The handler can be one from three contexts, see &iwl_rx_handler_context 309 */ 310 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 311 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 312 struct iwl_mvm_tx_resp), 313 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 314 struct iwl_mvm_ba_notif), 315 316 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 317 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 318 struct iwl_tlc_update_notif), 319 320 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 321 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 322 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 323 RX_HANDLER_ASYNC_LOCKED), 324 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 325 RX_HANDLER_ASYNC_LOCKED), 326 327 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 328 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 329 struct iwl_ba_window_status_notif), 330 331 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 332 RX_HANDLER_SYNC, struct iwl_time_event_notif), 333 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 334 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 335 struct iwl_mvm_session_prot_notif), 336 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 337 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 338 339 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 340 struct iwl_mvm_eosp_notification), 341 342 RX_HANDLER(SCAN_ITERATION_COMPLETE, 343 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 344 struct iwl_lmac_scan_complete_notif), 345 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 346 iwl_mvm_rx_lmac_scan_complete_notif, 347 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 348 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 349 iwl_mvm_rx_scan_match_found, 350 RX_HANDLER_SYNC), 351 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 352 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 353 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 354 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 355 struct iwl_umac_scan_iter_complete_notif), 356 357 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 358 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 359 360 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 361 struct iwl_error_resp), 362 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 363 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 364 struct iwl_uapsd_misbehaving_ap_notif), 365 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 366 RX_HANDLER_ASYNC_LOCKED), 367 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 368 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 369 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 370 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 371 struct ct_kill_notif), 372 373 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 374 RX_HANDLER_ASYNC_LOCKED, 375 struct iwl_tdls_channel_switch_notif), 376 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 377 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 378 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 379 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 380 struct iwl_ftm_responder_stats), 381 382 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 383 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 384 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 385 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 386 387 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 388 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 389 struct iwl_mfu_assert_dump_notif), 390 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 391 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 392 struct iwl_stored_beacon_notif_v2), 393 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 394 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 395 struct iwl_mu_group_mgmt_notif), 396 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 397 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 398 struct iwl_mvm_pm_state_notification), 399 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 400 iwl_mvm_probe_resp_data_notif, 401 RX_HANDLER_ASYNC_LOCKED, 402 struct iwl_probe_resp_data_notif), 403 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 404 iwl_mvm_channel_switch_start_notif, 405 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 406 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, 407 iwl_mvm_channel_switch_error_notif, 408 RX_HANDLER_ASYNC_UNLOCKED, 409 struct iwl_channel_switch_error_notif), 410 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 411 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 412 struct iwl_datapath_monitor_notif), 413 414 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 415 iwl_mvm_rx_thermal_dual_chain_req, 416 RX_HANDLER_ASYNC_LOCKED, 417 struct iwl_thermal_dual_chain_request), 418 419 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, 420 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, 421 struct iwl_rfi_deactivate_notif), 422 }; 423 #undef RX_HANDLER 424 #undef RX_HANDLER_GRP 425 426 /* Please keep this array *SORTED* by hex value. 427 * Access is done through binary search 428 */ 429 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 430 HCMD_NAME(UCODE_ALIVE_NTFY), 431 HCMD_NAME(REPLY_ERROR), 432 HCMD_NAME(ECHO_CMD), 433 HCMD_NAME(INIT_COMPLETE_NOTIF), 434 HCMD_NAME(PHY_CONTEXT_CMD), 435 HCMD_NAME(DBG_CFG), 436 HCMD_NAME(SCAN_CFG_CMD), 437 HCMD_NAME(SCAN_REQ_UMAC), 438 HCMD_NAME(SCAN_ABORT_UMAC), 439 HCMD_NAME(SCAN_COMPLETE_UMAC), 440 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 441 HCMD_NAME(ADD_STA_KEY), 442 HCMD_NAME(ADD_STA), 443 HCMD_NAME(REMOVE_STA), 444 HCMD_NAME(FW_GET_ITEM_CMD), 445 HCMD_NAME(TX_CMD), 446 HCMD_NAME(SCD_QUEUE_CFG), 447 HCMD_NAME(TXPATH_FLUSH), 448 HCMD_NAME(MGMT_MCAST_KEY), 449 HCMD_NAME(WEP_KEY), 450 HCMD_NAME(SHARED_MEM_CFG), 451 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 452 HCMD_NAME(MAC_CONTEXT_CMD), 453 HCMD_NAME(TIME_EVENT_CMD), 454 HCMD_NAME(TIME_EVENT_NOTIFICATION), 455 HCMD_NAME(BINDING_CONTEXT_CMD), 456 HCMD_NAME(TIME_QUOTA_CMD), 457 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 458 HCMD_NAME(LEDS_CMD), 459 HCMD_NAME(LQ_CMD), 460 HCMD_NAME(FW_PAGING_BLOCK_CMD), 461 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 462 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 463 HCMD_NAME(HOT_SPOT_CMD), 464 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 465 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 466 HCMD_NAME(BT_COEX_CI), 467 HCMD_NAME(PHY_CONFIGURATION_CMD), 468 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 469 HCMD_NAME(PHY_DB_CMD), 470 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 471 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 472 HCMD_NAME(POWER_TABLE_CMD), 473 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 474 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 475 HCMD_NAME(NVM_ACCESS_CMD), 476 HCMD_NAME(BEACON_NOTIFICATION), 477 HCMD_NAME(BEACON_TEMPLATE_CMD), 478 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 479 HCMD_NAME(BT_CONFIG), 480 HCMD_NAME(STATISTICS_CMD), 481 HCMD_NAME(STATISTICS_NOTIFICATION), 482 HCMD_NAME(EOSP_NOTIFICATION), 483 HCMD_NAME(REDUCE_TX_POWER_CMD), 484 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 485 HCMD_NAME(TDLS_CONFIG_CMD), 486 HCMD_NAME(MAC_PM_POWER_TABLE), 487 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 488 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 489 HCMD_NAME(RSS_CONFIG_CMD), 490 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 491 HCMD_NAME(REPLY_RX_PHY_CMD), 492 HCMD_NAME(REPLY_RX_MPDU_CMD), 493 HCMD_NAME(BAR_FRAME_RELEASE), 494 HCMD_NAME(FRAME_RELEASE), 495 HCMD_NAME(BA_NOTIF), 496 HCMD_NAME(MCC_UPDATE_CMD), 497 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 498 HCMD_NAME(MARKER_CMD), 499 HCMD_NAME(BT_PROFILE_NOTIFICATION), 500 HCMD_NAME(MCAST_FILTER_CMD), 501 HCMD_NAME(REPLY_SF_CFG_CMD), 502 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 503 HCMD_NAME(D3_CONFIG_CMD), 504 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 505 HCMD_NAME(OFFLOADS_QUERY_CMD), 506 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 507 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 508 HCMD_NAME(WOWLAN_PATTERNS), 509 HCMD_NAME(WOWLAN_CONFIGURATION), 510 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 511 HCMD_NAME(WOWLAN_TKIP_PARAM), 512 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 513 HCMD_NAME(WOWLAN_GET_STATUSES), 514 HCMD_NAME(SCAN_ITERATION_COMPLETE), 515 HCMD_NAME(D0I3_END_CMD), 516 HCMD_NAME(LTR_CONFIG), 517 HCMD_NAME(LDBG_CONFIG_CMD), 518 }; 519 520 /* Please keep this array *SORTED* by hex value. 521 * Access is done through binary search 522 */ 523 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 524 HCMD_NAME(SHARED_MEM_CFG_CMD), 525 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 526 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 527 HCMD_NAME(RFI_CONFIG_CMD), 528 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 529 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 530 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 531 }; 532 533 /* Please keep this array *SORTED* by hex value. 534 * Access is done through binary search 535 */ 536 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 537 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 538 HCMD_NAME(SESSION_PROTECTION_CMD), 539 HCMD_NAME(SESSION_PROTECTION_NOTIF), 540 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 541 }; 542 543 /* Please keep this array *SORTED* by hex value. 544 * Access is done through binary search 545 */ 546 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 547 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 548 HCMD_NAME(CTDP_CONFIG_CMD), 549 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 550 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 551 HCMD_NAME(CT_KILL_NOTIFICATION), 552 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 553 }; 554 555 /* Please keep this array *SORTED* by hex value. 556 * Access is done through binary search 557 */ 558 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 559 HCMD_NAME(DQA_ENABLE_CMD), 560 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 561 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 562 HCMD_NAME(STA_HE_CTXT_CMD), 563 HCMD_NAME(RLC_CONFIG_CMD), 564 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 565 HCMD_NAME(TLC_MNG_CONFIG_CMD), 566 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 567 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 568 HCMD_NAME(MONITOR_NOTIF), 569 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 570 HCMD_NAME(STA_PM_NOTIF), 571 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 572 HCMD_NAME(RX_QUEUES_NOTIFICATION), 573 }; 574 575 /* Please keep this array *SORTED* by hex value. 576 * Access is done through binary search 577 */ 578 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 579 HCMD_NAME(TOF_RANGE_REQ_CMD), 580 HCMD_NAME(TOF_CONFIG_CMD), 581 HCMD_NAME(TOF_RANGE_ABORT_CMD), 582 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 583 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 584 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 585 HCMD_NAME(TOF_LC_NOTIF), 586 HCMD_NAME(TOF_RESPONDER_STATS), 587 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 588 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 589 }; 590 591 /* Please keep this array *SORTED* by hex value. 592 * Access is done through binary search 593 */ 594 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 595 HCMD_NAME(STORED_BEACON_NTF), 596 }; 597 598 /* Please keep this array *SORTED* by hex value. 599 * Access is done through binary search 600 */ 601 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 602 HCMD_NAME(NVM_ACCESS_COMPLETE), 603 HCMD_NAME(NVM_GET_INFO), 604 HCMD_NAME(TAS_CONFIG), 605 }; 606 607 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 608 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 609 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 610 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 611 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 612 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 613 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 614 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 615 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 616 [REGULATORY_AND_NVM_GROUP] = 617 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 618 }; 619 620 /* this forward declaration can avoid to export the function */ 621 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 622 623 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 624 { 625 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 626 u64 dflt_pwr_limit; 627 628 if (!backoff) 629 return 0; 630 631 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 632 633 while (backoff->pwr) { 634 if (dflt_pwr_limit >= backoff->pwr) 635 return backoff->backoff; 636 637 backoff++; 638 } 639 640 return 0; 641 } 642 643 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 644 { 645 struct iwl_mvm *mvm = 646 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 647 struct ieee80211_vif *tx_blocked_vif; 648 struct iwl_mvm_vif *mvmvif; 649 650 mutex_lock(&mvm->mutex); 651 652 tx_blocked_vif = 653 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 654 lockdep_is_held(&mvm->mutex)); 655 656 if (!tx_blocked_vif) 657 goto unlock; 658 659 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 660 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 661 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 662 unlock: 663 mutex_unlock(&mvm->mutex); 664 } 665 666 static void iwl_mvm_fwrt_dump_start(void *ctx) 667 { 668 struct iwl_mvm *mvm = ctx; 669 670 mutex_lock(&mvm->mutex); 671 } 672 673 static void iwl_mvm_fwrt_dump_end(void *ctx) 674 { 675 struct iwl_mvm *mvm = ctx; 676 677 mutex_unlock(&mvm->mutex); 678 } 679 680 static bool iwl_mvm_fwrt_fw_running(void *ctx) 681 { 682 return iwl_mvm_firmware_running(ctx); 683 } 684 685 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 686 { 687 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 688 int ret; 689 690 mutex_lock(&mvm->mutex); 691 ret = iwl_mvm_send_cmd(mvm, host_cmd); 692 mutex_unlock(&mvm->mutex); 693 694 return ret; 695 } 696 697 static bool iwl_mvm_d3_debug_enable(void *ctx) 698 { 699 return IWL_MVM_D3_DEBUG; 700 } 701 702 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 703 .dump_start = iwl_mvm_fwrt_dump_start, 704 .dump_end = iwl_mvm_fwrt_dump_end, 705 .fw_running = iwl_mvm_fwrt_fw_running, 706 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 707 .d3_debug_enable = iwl_mvm_d3_debug_enable, 708 }; 709 710 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 711 { 712 struct iwl_trans *trans = mvm->trans; 713 int ret; 714 715 if (trans->csme_own) { 716 if (WARN(!mvm->mei_registered, 717 "csme is owner, but we aren't registered to iwlmei\n")) 718 goto get_nvm_from_fw; 719 720 mvm->mei_nvm_data = iwl_mei_get_nvm(); 721 if (mvm->mei_nvm_data) { 722 /* 723 * mvm->mei_nvm_data is set and because of that, 724 * we'll load the NVM from the FW when we'll get 725 * ownership. 726 */ 727 mvm->nvm_data = 728 iwl_parse_mei_nvm_data(trans, trans->cfg, 729 mvm->mei_nvm_data, mvm->fw); 730 return 0; 731 } 732 733 IWL_ERR(mvm, 734 "Got a NULL NVM from CSME, trying to get it from the device\n"); 735 } 736 737 get_nvm_from_fw: 738 rtnl_lock(); 739 wiphy_lock(mvm->hw->wiphy); 740 mutex_lock(&mvm->mutex); 741 742 ret = iwl_trans_start_hw(mvm->trans); 743 if (ret) { 744 mutex_unlock(&mvm->mutex); 745 wiphy_unlock(mvm->hw->wiphy); 746 rtnl_unlock(); 747 return ret; 748 } 749 750 ret = iwl_run_init_mvm_ucode(mvm); 751 if (ret && ret != -ERFKILL) 752 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 753 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 754 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 755 ret = iwl_mvm_init_mcc(mvm); 756 } 757 758 if (!iwlmvm_mod_params.init_dbg || !ret) 759 iwl_mvm_stop_device(mvm); 760 761 mutex_unlock(&mvm->mutex); 762 wiphy_unlock(mvm->hw->wiphy); 763 rtnl_unlock(); 764 765 if (ret) 766 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 767 768 return ret; 769 } 770 771 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 772 { 773 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 774 int ret; 775 776 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 777 778 ret = iwl_mvm_mac_setup_register(mvm); 779 if (ret) 780 return ret; 781 782 mvm->hw_registered = true; 783 784 iwl_mvm_dbgfs_register(mvm); 785 786 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 787 mvm->mei_rfkill_blocked, 788 RFKILL_HARD_BLOCK_NOT_OWNER); 789 790 iwl_mvm_mei_set_sw_rfkill_state(mvm); 791 792 return 0; 793 } 794 795 struct iwl_mvm_frob_txf_data { 796 u8 *buf; 797 size_t buflen; 798 }; 799 800 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 801 struct ieee80211_vif *vif, 802 struct ieee80211_sta *sta, 803 struct ieee80211_key_conf *key, 804 void *data) 805 { 806 struct iwl_mvm_frob_txf_data *txf = data; 807 u8 keylen, match, matchend; 808 u8 *keydata; 809 size_t i; 810 811 switch (key->cipher) { 812 case WLAN_CIPHER_SUITE_CCMP: 813 keydata = key->key; 814 keylen = key->keylen; 815 break; 816 case WLAN_CIPHER_SUITE_WEP40: 817 case WLAN_CIPHER_SUITE_WEP104: 818 case WLAN_CIPHER_SUITE_TKIP: 819 /* 820 * WEP has short keys which might show up in the payload, 821 * and then you can deduce the key, so in this case just 822 * remove all FIFO data. 823 * For TKIP, we don't know the phase 2 keys here, so same. 824 */ 825 memset(txf->buf, 0xBB, txf->buflen); 826 return; 827 default: 828 return; 829 } 830 831 /* scan for key material and clear it out */ 832 match = 0; 833 for (i = 0; i < txf->buflen; i++) { 834 if (txf->buf[i] != keydata[match]) { 835 match = 0; 836 continue; 837 } 838 match++; 839 if (match == keylen) { 840 memset(txf->buf + i - keylen, 0xAA, keylen); 841 match = 0; 842 } 843 } 844 845 /* we're dealing with a FIFO, so check wrapped around data */ 846 matchend = match; 847 for (i = 0; match && i < keylen - match; i++) { 848 if (txf->buf[i] != keydata[match]) 849 break; 850 match++; 851 if (match == keylen) { 852 memset(txf->buf, 0xAA, i + 1); 853 memset(txf->buf + txf->buflen - matchend, 0xAA, 854 matchend); 855 break; 856 } 857 } 858 } 859 860 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 861 { 862 struct iwl_mvm_frob_txf_data txf = { 863 .buf = buf, 864 .buflen = buflen, 865 }; 866 struct iwl_mvm *mvm = ctx; 867 868 /* embedded key material exists only on old API */ 869 if (iwl_mvm_has_new_tx_api(mvm)) 870 return; 871 872 rcu_read_lock(); 873 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 874 rcu_read_unlock(); 875 } 876 877 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 878 { 879 /* we only use wide headers for commands */ 880 struct iwl_cmd_header_wide *hdr = hcmd; 881 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 882 883 if (len < sizeof(hdr)) 884 return; 885 886 /* all the commands we care about are in LONG_GROUP */ 887 if (hdr->group_id != LONG_GROUP) 888 return; 889 890 switch (hdr->cmd) { 891 case WEP_KEY: 892 case WOWLAN_TKIP_PARAM: 893 case WOWLAN_KEK_KCK_MATERIAL: 894 case ADD_STA_KEY: 895 /* 896 * blank out everything here, easier than dealing 897 * with the various versions of the command 898 */ 899 frob_end = INT_MAX; 900 break; 901 case MGMT_MCAST_KEY: 902 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 903 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 904 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 905 906 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 907 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 908 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 909 break; 910 } 911 912 if (frob_start >= frob_end) 913 return; 914 915 if (frob_end > len) 916 frob_end = len; 917 918 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 919 } 920 921 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 922 { 923 const struct iwl_dump_exclude *excl; 924 struct iwl_mvm *mvm = ctx; 925 int i; 926 927 switch (mvm->fwrt.cur_fw_img) { 928 case IWL_UCODE_INIT: 929 default: 930 /* not relevant */ 931 return; 932 case IWL_UCODE_REGULAR: 933 case IWL_UCODE_REGULAR_USNIFFER: 934 excl = mvm->fw->dump_excl; 935 break; 936 case IWL_UCODE_WOWLAN: 937 excl = mvm->fw->dump_excl_wowlan; 938 break; 939 } 940 941 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 942 sizeof(mvm->fw->dump_excl_wowlan)); 943 944 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 945 u32 start, end; 946 947 if (!excl[i].addr || !excl[i].size) 948 continue; 949 950 start = excl[i].addr; 951 end = start + excl[i].size; 952 953 if (end <= mem_addr || start >= mem_addr + buflen) 954 continue; 955 956 if (start < mem_addr) 957 start = mem_addr; 958 959 if (end > mem_addr + buflen) 960 end = mem_addr + buflen; 961 962 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 963 } 964 } 965 966 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 967 .frob_txf = iwl_mvm_frob_txf, 968 .frob_hcmd = iwl_mvm_frob_hcmd, 969 .frob_mem = iwl_mvm_frob_mem, 970 }; 971 972 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 973 { 974 struct iwl_mvm *mvm = priv; 975 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 976 977 /* 978 * This is protected by the guarantee that this function will not be 979 * called twice on two different threads 980 */ 981 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 982 983 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 984 if (!curr_conn_info) 985 return; 986 987 curr_conn_info->conn_info = *conn_info; 988 989 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 990 991 if (prev_conn_info) 992 kfree_rcu(prev_conn_info, rcu_head); 993 } 994 995 static void iwl_mvm_mei_rfkill(void *priv, bool blocked) 996 { 997 struct iwl_mvm *mvm = priv; 998 999 mvm->mei_rfkill_blocked = blocked; 1000 if (!mvm->hw_registered) 1001 return; 1002 1003 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 1004 mvm->mei_rfkill_blocked, 1005 RFKILL_HARD_BLOCK_NOT_OWNER); 1006 } 1007 1008 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 1009 { 1010 struct iwl_mvm *mvm = priv; 1011 1012 if (!mvm->hw_registered || !mvm->csme_vif) 1013 return; 1014 1015 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 1016 } 1017 1018 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1019 { 1020 struct iwl_mvm *mvm = 1021 container_of(wk, struct iwl_mvm, sap_connected_wk); 1022 int ret; 1023 1024 ret = iwl_mvm_start_get_nvm(mvm); 1025 if (ret) 1026 goto out_free; 1027 1028 ret = iwl_mvm_start_post_nvm(mvm); 1029 if (ret) 1030 goto out_free; 1031 1032 return; 1033 1034 out_free: 1035 IWL_ERR(mvm, "Couldn't get started...\n"); 1036 iwl_mei_start_unregister(); 1037 iwl_mei_unregister_complete(); 1038 iwl_fw_flush_dumps(&mvm->fwrt); 1039 iwl_mvm_thermal_exit(mvm); 1040 iwl_fw_runtime_free(&mvm->fwrt); 1041 iwl_phy_db_free(mvm->phy_db); 1042 kfree(mvm->scan_cmd); 1043 iwl_trans_op_mode_leave(mvm->trans); 1044 kfree(mvm->nvm_data); 1045 kfree(mvm->mei_nvm_data); 1046 1047 ieee80211_free_hw(mvm->hw); 1048 } 1049 1050 static void iwl_mvm_mei_sap_connected(void *priv) 1051 { 1052 struct iwl_mvm *mvm = priv; 1053 1054 if (!mvm->hw_registered) 1055 schedule_work(&mvm->sap_connected_wk); 1056 } 1057 1058 static void iwl_mvm_mei_nic_stolen(void *priv) 1059 { 1060 struct iwl_mvm *mvm = priv; 1061 1062 rtnl_lock(); 1063 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1064 rtnl_unlock(); 1065 } 1066 1067 static const struct iwl_mei_ops mei_ops = { 1068 .me_conn_status = iwl_mvm_me_conn_status, 1069 .rfkill = iwl_mvm_mei_rfkill, 1070 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1071 .sap_connected = iwl_mvm_mei_sap_connected, 1072 .nic_stolen = iwl_mvm_mei_nic_stolen, 1073 }; 1074 1075 static struct iwl_op_mode * 1076 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1077 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1078 { 1079 struct ieee80211_hw *hw; 1080 struct iwl_op_mode *op_mode; 1081 struct iwl_mvm *mvm; 1082 struct iwl_trans_config trans_cfg = {}; 1083 static const u8 no_reclaim_cmds[] = { 1084 TX_CMD, 1085 }; 1086 int scan_size; 1087 u32 min_backoff; 1088 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1089 1090 /* 1091 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1092 * index all over the driver - check that its value corresponds to the 1093 * array size. 1094 */ 1095 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1096 IWL_MVM_STATION_COUNT_MAX); 1097 1098 /******************************** 1099 * 1. Allocating and configuring HW data 1100 ********************************/ 1101 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1102 sizeof(struct iwl_mvm), 1103 &iwl_mvm_hw_ops); 1104 if (!hw) 1105 return NULL; 1106 1107 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 1108 1109 if (cfg->max_tx_agg_size) 1110 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1111 else 1112 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 1113 1114 op_mode = hw->priv; 1115 1116 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1117 mvm->dev = trans->dev; 1118 mvm->trans = trans; 1119 mvm->cfg = cfg; 1120 mvm->fw = fw; 1121 mvm->hw = hw; 1122 1123 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1124 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1125 1126 iwl_mvm_get_acpi_tables(mvm); 1127 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1128 1129 mvm->init_status = 0; 1130 1131 if (iwl_mvm_has_new_rx_api(mvm)) { 1132 op_mode->ops = &iwl_mvm_ops_mq; 1133 trans->rx_mpdu_cmd_hdr_size = 1134 (trans->trans_cfg->device_family >= 1135 IWL_DEVICE_FAMILY_AX210) ? 1136 sizeof(struct iwl_rx_mpdu_desc) : 1137 IWL_RX_DESC_SIZE_V1; 1138 } else { 1139 op_mode->ops = &iwl_mvm_ops; 1140 trans->rx_mpdu_cmd_hdr_size = 1141 sizeof(struct iwl_rx_mpdu_res_start); 1142 1143 if (WARN_ON(trans->num_rx_queues > 1)) 1144 goto out_free; 1145 } 1146 1147 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1148 1149 if (iwl_mvm_has_new_tx_api(mvm)) { 1150 /* 1151 * If we have the new TX/queue allocation API initialize them 1152 * all to invalid numbers. We'll rewrite the ones that we need 1153 * later, but that doesn't happen for all of them all of the 1154 * time (e.g. P2P Device is optional), and if a dynamic queue 1155 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1156 * iwl_mvm_is_static_queue() erroneously returns true, and we 1157 * might have things getting stuck. 1158 */ 1159 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1160 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1161 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1162 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1163 } else { 1164 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1165 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1166 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1167 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1168 } 1169 1170 mvm->sf_state = SF_UNINIT; 1171 if (iwl_mvm_has_unified_ucode(mvm)) 1172 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1173 else 1174 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1175 mvm->drop_bcn_ap_mode = true; 1176 1177 mutex_init(&mvm->mutex); 1178 spin_lock_init(&mvm->async_handlers_lock); 1179 INIT_LIST_HEAD(&mvm->time_event_list); 1180 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1181 INIT_LIST_HEAD(&mvm->async_handlers_list); 1182 spin_lock_init(&mvm->time_event_lock); 1183 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1184 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1185 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1186 1187 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1188 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1189 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1190 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1191 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1192 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1193 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1194 1195 init_waitqueue_head(&mvm->rx_sync_waitq); 1196 1197 mvm->queue_sync_state = 0; 1198 1199 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1200 1201 spin_lock_init(&mvm->tcm.lock); 1202 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1203 mvm->tcm.ts = jiffies; 1204 mvm->tcm.ll_ts = jiffies; 1205 mvm->tcm.uapsd_nonagg_ts = jiffies; 1206 1207 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1208 1209 mvm->cmd_ver.d0i3_resp = 1210 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 1211 0); 1212 /* we only support version 1 */ 1213 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 1214 goto out_free; 1215 1216 mvm->cmd_ver.range_resp = 1217 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1218 TOF_RANGE_RESPONSE_NOTIF, 5); 1219 /* we only support up to version 9 */ 1220 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1221 goto out_free; 1222 1223 /* 1224 * Populate the state variables that the transport layer needs 1225 * to know about. 1226 */ 1227 trans_cfg.op_mode = op_mode; 1228 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1229 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1230 1231 switch (iwlwifi_mod_params.amsdu_size) { 1232 case IWL_AMSDU_DEF: 1233 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1234 break; 1235 case IWL_AMSDU_4K: 1236 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1237 break; 1238 case IWL_AMSDU_8K: 1239 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1240 break; 1241 case IWL_AMSDU_12K: 1242 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1243 break; 1244 default: 1245 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1246 iwlwifi_mod_params.amsdu_size); 1247 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1248 } 1249 1250 trans->wide_cmd_header = true; 1251 trans_cfg.bc_table_dword = 1252 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1253 1254 trans_cfg.command_groups = iwl_mvm_groups; 1255 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1256 1257 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1258 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1259 trans_cfg.scd_set_active = true; 1260 1261 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1262 driver_data[2]); 1263 1264 /* Set a short watchdog for the command queue */ 1265 trans_cfg.cmd_q_wdg_timeout = 1266 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1267 1268 snprintf(mvm->hw->wiphy->fw_version, 1269 sizeof(mvm->hw->wiphy->fw_version), 1270 "%s", fw->fw_version); 1271 1272 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1273 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1274 1275 trans_cfg.queue_alloc_cmd_ver = 1276 iwl_fw_lookup_cmd_ver(mvm->fw, 1277 WIDE_ID(DATA_PATH_GROUP, 1278 SCD_QUEUE_CONFIG_CMD), 1279 0); 1280 mvm->sta_remove_requires_queue_remove = 1281 trans_cfg.queue_alloc_cmd_ver > 0; 1282 1283 /* Configure transport layer */ 1284 iwl_trans_configure(mvm->trans, &trans_cfg); 1285 1286 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1287 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1288 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1289 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1290 sizeof(trans->dbg.conf_tlv)); 1291 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1292 1293 trans->iml = mvm->fw->iml; 1294 trans->iml_len = mvm->fw->iml_len; 1295 1296 /* set up notification wait support */ 1297 iwl_notification_wait_init(&mvm->notif_wait); 1298 1299 /* Init phy db */ 1300 mvm->phy_db = iwl_phy_db_init(trans); 1301 if (!mvm->phy_db) { 1302 IWL_ERR(mvm, "Cannot init phy_db\n"); 1303 goto out_free; 1304 } 1305 1306 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1307 mvm->trans->name, mvm->trans->hw_rev); 1308 1309 if (iwlwifi_mod_params.nvm_file) 1310 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1311 else 1312 IWL_DEBUG_EEPROM(mvm->trans->dev, 1313 "working without external nvm file\n"); 1314 1315 scan_size = iwl_mvm_scan_size(mvm); 1316 1317 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1318 if (!mvm->scan_cmd) 1319 goto out_free; 1320 1321 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1322 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1323 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1324 1325 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1326 mvm->last_ebs_successful = true; 1327 1328 min_backoff = iwl_mvm_min_backoff(mvm); 1329 iwl_mvm_thermal_initialize(mvm, min_backoff); 1330 1331 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1332 memset(&mvm->rx_stats_v3, 0, 1333 sizeof(struct mvm_statistics_rx_v3)); 1334 else 1335 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1336 1337 mvm->debugfs_dir = dbgfs_dir; 1338 1339 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1340 1341 if (iwl_mvm_start_get_nvm(mvm)) { 1342 /* 1343 * Getting NVM failed while CSME is the owner, but we are 1344 * registered to MEI, we'll get the NVM later when it'll be 1345 * possible to get it from CSME. 1346 */ 1347 if (trans->csme_own && mvm->mei_registered) 1348 return op_mode; 1349 1350 goto out_thermal_exit; 1351 } 1352 1353 1354 if (iwl_mvm_start_post_nvm(mvm)) 1355 goto out_thermal_exit; 1356 1357 return op_mode; 1358 1359 out_thermal_exit: 1360 iwl_mvm_thermal_exit(mvm); 1361 if (mvm->mei_registered) { 1362 iwl_mei_start_unregister(); 1363 iwl_mei_unregister_complete(); 1364 } 1365 out_free: 1366 iwl_fw_flush_dumps(&mvm->fwrt); 1367 iwl_fw_runtime_free(&mvm->fwrt); 1368 1369 if (iwlmvm_mod_params.init_dbg) 1370 return op_mode; 1371 iwl_phy_db_free(mvm->phy_db); 1372 kfree(mvm->scan_cmd); 1373 iwl_trans_op_mode_leave(trans); 1374 1375 ieee80211_free_hw(mvm->hw); 1376 return NULL; 1377 } 1378 1379 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1380 { 1381 lockdep_assert_held(&mvm->mutex); 1382 1383 iwl_fw_cancel_timestamp(&mvm->fwrt); 1384 1385 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1386 1387 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1388 iwl_trans_stop_device(mvm->trans); 1389 iwl_free_fw_paging(&mvm->fwrt); 1390 iwl_fw_dump_conf_clear(&mvm->fwrt); 1391 iwl_mvm_mei_device_down(mvm); 1392 } 1393 1394 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1395 { 1396 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1397 int i; 1398 1399 if (mvm->mei_registered) { 1400 rtnl_lock(); 1401 iwl_mei_set_netdev(NULL); 1402 rtnl_unlock(); 1403 iwl_mei_start_unregister(); 1404 } 1405 1406 /* 1407 * After we unregister from mei, the worker can't be scheduled 1408 * anymore. 1409 */ 1410 cancel_work_sync(&mvm->sap_connected_wk); 1411 1412 iwl_mvm_leds_exit(mvm); 1413 1414 iwl_mvm_thermal_exit(mvm); 1415 1416 /* 1417 * If we couldn't get ownership on the device and we couldn't 1418 * get the NVM from CSME, we haven't registered to mac80211. 1419 * In that case, we didn't fail op_mode_start, because we are 1420 * waiting for CSME to allow us to get the NVM to register to 1421 * mac80211. If that didn't happen, we haven't registered to 1422 * mac80211, hence the if below. 1423 */ 1424 if (mvm->hw_registered) 1425 ieee80211_unregister_hw(mvm->hw); 1426 1427 kfree(mvm->scan_cmd); 1428 kfree(mvm->mcast_filter_cmd); 1429 mvm->mcast_filter_cmd = NULL; 1430 1431 kfree(mvm->error_recovery_buf); 1432 mvm->error_recovery_buf = NULL; 1433 1434 iwl_trans_op_mode_leave(mvm->trans); 1435 1436 iwl_phy_db_free(mvm->phy_db); 1437 mvm->phy_db = NULL; 1438 1439 kfree(mvm->nvm_data); 1440 kfree(mvm->mei_nvm_data); 1441 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1442 kfree(mvm->temp_nvm_data); 1443 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1444 kfree(mvm->nvm_sections[i].data); 1445 1446 cancel_delayed_work_sync(&mvm->tcm.work); 1447 1448 iwl_fw_runtime_free(&mvm->fwrt); 1449 mutex_destroy(&mvm->mutex); 1450 1451 if (mvm->mei_registered) 1452 iwl_mei_unregister_complete(); 1453 1454 ieee80211_free_hw(mvm->hw); 1455 } 1456 1457 struct iwl_async_handler_entry { 1458 struct list_head list; 1459 struct iwl_rx_cmd_buffer rxb; 1460 enum iwl_rx_handler_context context; 1461 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1462 }; 1463 1464 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1465 { 1466 struct iwl_async_handler_entry *entry, *tmp; 1467 1468 spin_lock_bh(&mvm->async_handlers_lock); 1469 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1470 iwl_free_rxb(&entry->rxb); 1471 list_del(&entry->list); 1472 kfree(entry); 1473 } 1474 spin_unlock_bh(&mvm->async_handlers_lock); 1475 } 1476 1477 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1478 { 1479 struct iwl_mvm *mvm = 1480 container_of(wk, struct iwl_mvm, async_handlers_wk); 1481 struct iwl_async_handler_entry *entry, *tmp; 1482 LIST_HEAD(local_list); 1483 1484 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1485 1486 /* 1487 * Sync with Rx path with a lock. Remove all the entries from this list, 1488 * add them to a local one (lock free), and then handle them. 1489 */ 1490 spin_lock_bh(&mvm->async_handlers_lock); 1491 list_splice_init(&mvm->async_handlers_list, &local_list); 1492 spin_unlock_bh(&mvm->async_handlers_lock); 1493 1494 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1495 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1496 mutex_lock(&mvm->mutex); 1497 entry->fn(mvm, &entry->rxb); 1498 iwl_free_rxb(&entry->rxb); 1499 list_del(&entry->list); 1500 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1501 mutex_unlock(&mvm->mutex); 1502 kfree(entry); 1503 } 1504 } 1505 1506 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1507 struct iwl_rx_packet *pkt) 1508 { 1509 struct iwl_fw_dbg_trigger_tlv *trig; 1510 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1511 int i; 1512 1513 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1514 FW_DBG_TRIGGER_FW_NOTIF); 1515 if (!trig) 1516 return; 1517 1518 cmds_trig = (void *)trig->data; 1519 1520 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1521 /* don't collect on CMD 0 */ 1522 if (!cmds_trig->cmds[i].cmd_id) 1523 break; 1524 1525 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1526 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1527 continue; 1528 1529 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1530 "CMD 0x%02x.%02x received", 1531 pkt->hdr.group_id, pkt->hdr.cmd); 1532 break; 1533 } 1534 } 1535 1536 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1537 struct iwl_rx_cmd_buffer *rxb, 1538 struct iwl_rx_packet *pkt) 1539 { 1540 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1541 int i; 1542 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1543 1544 iwl_dbg_tlv_time_point(&mvm->fwrt, 1545 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1546 iwl_mvm_rx_check_trigger(mvm, pkt); 1547 1548 /* 1549 * Do the notification wait before RX handlers so 1550 * even if the RX handler consumes the RXB we have 1551 * access to it in the notification wait entry. 1552 */ 1553 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1554 1555 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1556 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1557 struct iwl_async_handler_entry *entry; 1558 1559 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1560 continue; 1561 1562 if (unlikely(pkt_len < rx_h->min_size)) 1563 return; 1564 1565 if (rx_h->context == RX_HANDLER_SYNC) { 1566 rx_h->fn(mvm, rxb); 1567 return; 1568 } 1569 1570 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1571 /* we can't do much... */ 1572 if (!entry) 1573 return; 1574 1575 entry->rxb._page = rxb_steal_page(rxb); 1576 entry->rxb._offset = rxb->_offset; 1577 entry->rxb._rx_page_order = rxb->_rx_page_order; 1578 entry->fn = rx_h->fn; 1579 entry->context = rx_h->context; 1580 spin_lock(&mvm->async_handlers_lock); 1581 list_add_tail(&entry->list, &mvm->async_handlers_list); 1582 spin_unlock(&mvm->async_handlers_lock); 1583 schedule_work(&mvm->async_handlers_wk); 1584 break; 1585 } 1586 } 1587 1588 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1589 struct napi_struct *napi, 1590 struct iwl_rx_cmd_buffer *rxb) 1591 { 1592 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1593 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1594 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1595 1596 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1597 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1598 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1599 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1600 else 1601 iwl_mvm_rx_common(mvm, rxb, pkt); 1602 } 1603 1604 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1605 struct napi_struct *napi, 1606 struct iwl_rx_cmd_buffer *rxb) 1607 { 1608 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1609 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1610 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1611 1612 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1613 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1614 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1615 RX_QUEUES_NOTIFICATION))) 1616 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1617 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1618 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1619 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1620 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1621 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1622 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1623 else 1624 iwl_mvm_rx_common(mvm, rxb, pkt); 1625 } 1626 1627 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1628 const struct iwl_device_cmd *cmd) 1629 { 1630 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1631 1632 /* 1633 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1634 * commands that need to block the Tx queues. 1635 */ 1636 iwl_trans_block_txq_ptrs(mvm->trans, false); 1637 } 1638 1639 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1640 { 1641 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1642 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1643 } 1644 1645 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1646 int hw_queue, bool start) 1647 { 1648 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1649 struct ieee80211_sta *sta; 1650 struct ieee80211_txq *txq; 1651 struct iwl_mvm_txq *mvmtxq; 1652 int i; 1653 unsigned long tid_bitmap; 1654 struct iwl_mvm_sta *mvmsta; 1655 u8 sta_id; 1656 1657 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1658 mvm->tvqm_info[hw_queue].sta_id : 1659 mvm->queue_info[hw_queue].ra_sta_id; 1660 1661 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1662 return; 1663 1664 rcu_read_lock(); 1665 1666 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1667 if (IS_ERR_OR_NULL(sta)) 1668 goto out; 1669 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1670 1671 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1672 if (!start) 1673 ieee80211_stop_queues(mvm->hw); 1674 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1675 ieee80211_wake_queues(mvm->hw); 1676 1677 goto out; 1678 } 1679 1680 if (iwl_mvm_has_new_tx_api(mvm)) { 1681 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1682 1683 tid_bitmap = BIT(tid); 1684 } else { 1685 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1686 } 1687 1688 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1689 int tid = i; 1690 1691 if (tid == IWL_MAX_TID_COUNT) 1692 tid = IEEE80211_NUM_TIDS; 1693 1694 txq = sta->txq[tid]; 1695 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1696 mvmtxq->stopped = !start; 1697 1698 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1699 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1700 } 1701 1702 out: 1703 rcu_read_unlock(); 1704 } 1705 1706 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1707 { 1708 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1709 } 1710 1711 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1712 { 1713 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1714 } 1715 1716 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1717 { 1718 bool state = iwl_mvm_is_radio_killed(mvm); 1719 1720 if (state) 1721 wake_up(&mvm->rx_sync_waitq); 1722 1723 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1724 } 1725 1726 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1727 { 1728 if (state) 1729 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1730 else 1731 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1732 1733 iwl_mvm_set_rfkill_state(mvm); 1734 } 1735 1736 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1737 { 1738 return rcu_dereference_protected(mvm->csme_conn_info, 1739 lockdep_is_held(&mvm->mutex)); 1740 } 1741 1742 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1743 { 1744 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1745 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1746 bool unified = iwl_mvm_has_unified_ucode(mvm); 1747 1748 if (state) 1749 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1750 else 1751 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1752 1753 iwl_mvm_set_rfkill_state(mvm); 1754 1755 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1756 if (rfkill_safe_init_done) 1757 iwl_abort_notification_waits(&mvm->notif_wait); 1758 1759 /* 1760 * Don't ask the transport to stop the firmware. We'll do it 1761 * after cfg80211 takes us down. 1762 */ 1763 if (unified) 1764 return false; 1765 1766 /* 1767 * Stop the device if we run OPERATIONAL firmware or if we are in the 1768 * middle of the calibrations. 1769 */ 1770 return state && rfkill_safe_init_done; 1771 } 1772 1773 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1774 { 1775 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1776 struct ieee80211_tx_info *info; 1777 1778 info = IEEE80211_SKB_CB(skb); 1779 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1780 ieee80211_free_txskb(mvm->hw, skb); 1781 } 1782 1783 struct iwl_mvm_reprobe { 1784 struct device *dev; 1785 struct work_struct work; 1786 }; 1787 1788 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1789 { 1790 struct iwl_mvm_reprobe *reprobe; 1791 1792 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1793 if (device_reprobe(reprobe->dev)) 1794 dev_err(reprobe->dev, "reprobe failed!\n"); 1795 put_device(reprobe->dev); 1796 kfree(reprobe); 1797 module_put(THIS_MODULE); 1798 } 1799 1800 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1801 { 1802 iwl_abort_notification_waits(&mvm->notif_wait); 1803 iwl_dbg_tlv_del_timers(mvm->trans); 1804 1805 /* 1806 * This is a bit racy, but worst case we tell mac80211 about 1807 * a stopped/aborted scan when that was already done which 1808 * is not a problem. It is necessary to abort any os scan 1809 * here because mac80211 requires having the scan cleared 1810 * before restarting. 1811 * We'll reset the scan_status to NONE in restart cleanup in 1812 * the next start() call from mac80211. If restart isn't called 1813 * (no fw restart) scan status will stay busy. 1814 */ 1815 iwl_mvm_report_scan_aborted(mvm); 1816 1817 /* 1818 * If we're restarting already, don't cycle restarts. 1819 * If INIT fw asserted, it will likely fail again. 1820 * If WoWLAN fw asserted, don't restart either, mac80211 1821 * can't recover this since we're already half suspended. 1822 */ 1823 if (!mvm->fw_restart && fw_error) { 1824 iwl_fw_error_collect(&mvm->fwrt, false); 1825 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1826 &mvm->status)) { 1827 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1828 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1829 struct iwl_mvm_reprobe *reprobe; 1830 1831 IWL_ERR(mvm, 1832 "Firmware error during reconfiguration - reprobe!\n"); 1833 1834 /* 1835 * get a module reference to avoid doing this while unloading 1836 * anyway and to avoid scheduling a work with code that's 1837 * being removed. 1838 */ 1839 if (!try_module_get(THIS_MODULE)) { 1840 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1841 return; 1842 } 1843 1844 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1845 if (!reprobe) { 1846 module_put(THIS_MODULE); 1847 return; 1848 } 1849 reprobe->dev = get_device(mvm->trans->dev); 1850 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1851 schedule_work(&reprobe->work); 1852 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1853 &mvm->status)) { 1854 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1855 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1856 mvm->hw_registered && 1857 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1858 /* This should be first thing before trying to collect any 1859 * data to avoid endless loops if any HW error happens while 1860 * collecting debug data. 1861 */ 1862 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1863 1864 if (mvm->fw->ucode_capa.error_log_size) { 1865 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1866 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1867 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1868 1869 if (recover_buf) { 1870 mvm->error_recovery_buf = recover_buf; 1871 iwl_trans_read_mem_bytes(mvm->trans, 1872 src_addr, 1873 recover_buf, 1874 src_size); 1875 } 1876 } 1877 1878 iwl_fw_error_collect(&mvm->fwrt, false); 1879 1880 if (fw_error && mvm->fw_restart > 0) { 1881 mvm->fw_restart--; 1882 ieee80211_restart_hw(mvm->hw); 1883 } else if (mvm->fwrt.trans->dbg.restart_required) { 1884 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1885 mvm->fwrt.trans->dbg.restart_required = FALSE; 1886 ieee80211_restart_hw(mvm->hw); 1887 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1888 ieee80211_restart_hw(mvm->hw); 1889 } 1890 } 1891 } 1892 1893 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1894 { 1895 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 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