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/vmalloc.h> 9 #include <net/mac80211.h> 10 11 #include "fw/notif-wait.h" 12 #include "iwl-trans.h" 13 #include "iwl-op-mode.h" 14 #include "fw/img.h" 15 #include "iwl-debug.h" 16 #include "iwl-drv.h" 17 #include "iwl-modparams.h" 18 #include "mvm.h" 19 #include "iwl-phy-db.h" 20 #include "iwl-eeprom-parse.h" 21 #include "iwl-csr.h" 22 #include "iwl-io.h" 23 #include "iwl-prph.h" 24 #include "rs.h" 25 #include "fw/api/scan.h" 26 #include "time-event.h" 27 #include "fw-api.h" 28 #include "fw/acpi.h" 29 30 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 31 MODULE_DESCRIPTION(DRV_DESCRIPTION); 32 MODULE_LICENSE("GPL"); 33 34 static const struct iwl_op_mode_ops iwl_mvm_ops; 35 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 36 37 struct iwl_mvm_mod_params iwlmvm_mod_params = { 38 .power_scheme = IWL_POWER_SCHEME_BPS, 39 /* rest of fields are 0 by default */ 40 }; 41 42 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 43 MODULE_PARM_DESC(init_dbg, 44 "set to true to debug an ASSERT in INIT fw (default: false"); 45 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 46 MODULE_PARM_DESC(power_scheme, 47 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 48 49 /* 50 * module init and exit functions 51 */ 52 static int __init iwl_mvm_init(void) 53 { 54 int ret; 55 56 ret = iwl_mvm_rate_control_register(); 57 if (ret) { 58 pr_err("Unable to register rate control algorithm: %d\n", ret); 59 return ret; 60 } 61 62 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 63 if (ret) 64 pr_err("Unable to register MVM op_mode: %d\n", ret); 65 66 return ret; 67 } 68 module_init(iwl_mvm_init); 69 70 static void __exit iwl_mvm_exit(void) 71 { 72 iwl_opmode_deregister("iwlmvm"); 73 iwl_mvm_rate_control_unregister(); 74 } 75 module_exit(iwl_mvm_exit); 76 77 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 78 { 79 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 80 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 81 u32 reg_val = 0; 82 u32 phy_config = iwl_mvm_get_phy_config(mvm); 83 84 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 85 FW_PHY_CFG_RADIO_TYPE_POS; 86 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 87 FW_PHY_CFG_RADIO_STEP_POS; 88 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 89 FW_PHY_CFG_RADIO_DASH_POS; 90 91 /* SKU control */ 92 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << 93 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; 94 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) << 95 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; 96 97 /* radio configuration */ 98 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 99 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 100 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 101 102 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 103 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 104 105 /* 106 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 107 * sampling, and shouldn't be set to any non-zero value. 108 * The same is supposed to be true of the other HW, but unsetting 109 * them (such as the 7260) causes automatic tests to fail on seemingly 110 * unrelated errors. Need to further investigate this, but for now 111 * we'll separate cases. 112 */ 113 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 114 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 115 116 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 117 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 118 119 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 120 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | 121 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | 122 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 123 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 124 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 125 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 126 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 127 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 128 reg_val); 129 130 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 131 radio_cfg_step, radio_cfg_dash); 132 133 /* 134 * W/A : NIC is stuck in a reset state after Early PCIe power off 135 * (PCIe power is lost before PERST# is asserted), causing ME FW 136 * to lose ownership and not being able to obtain it back. 137 */ 138 if (!mvm->trans->cfg->apmg_not_supported) 139 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 140 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 141 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 142 } 143 144 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 145 struct iwl_rx_cmd_buffer *rxb) 146 { 147 struct iwl_rx_packet *pkt = rxb_addr(rxb); 148 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 149 struct ieee80211_supported_band *sband; 150 const struct ieee80211_sta_he_cap *he_cap; 151 struct ieee80211_vif *vif; 152 153 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 154 return; 155 156 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 157 if (!vif || vif->type != NL80211_IFTYPE_STATION) 158 return; 159 160 if (!vif->bss_conf.chandef.chan || 161 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 162 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 163 return; 164 165 if (!vif->bss_conf.assoc) 166 return; 167 168 /* this shouldn't happen *again*, ignore it */ 169 if (mvm->cca_40mhz_workaround) 170 return; 171 172 /* 173 * We'll decrement this on disconnect - so set to 2 since we'll 174 * still have to disconnect from the current AP first. 175 */ 176 mvm->cca_40mhz_workaround = 2; 177 178 /* 179 * This capability manipulation isn't really ideal, but it's the 180 * easiest choice - otherwise we'd have to do some major changes 181 * in mac80211 to support this, which isn't worth it. This does 182 * mean that userspace may have outdated information, but that's 183 * actually not an issue at all. 184 */ 185 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 186 187 WARN_ON(!sband->ht_cap.ht_supported); 188 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 189 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 190 191 he_cap = ieee80211_get_he_iftype_cap(sband, 192 ieee80211_vif_type_p2p(vif)); 193 194 if (he_cap) { 195 /* we know that ours is writable */ 196 struct ieee80211_sta_he_cap *he = (void *)he_cap; 197 198 WARN_ON(!he->has_he); 199 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 200 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 201 he->he_cap_elem.phy_cap_info[0] &= 202 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 203 } 204 205 ieee80211_disconnect(vif, true); 206 } 207 208 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif) 209 { 210 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 211 struct iwl_mvm *mvm = mvmvif->mvm; 212 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 213 214 if (mvm->fw_static_smps_request && 215 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 && 216 vif->bss_conf.he_support) 217 mode = IEEE80211_SMPS_STATIC; 218 219 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode); 220 } 221 222 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 223 struct ieee80211_vif *vif) 224 { 225 iwl_mvm_apply_fw_smps_request(vif); 226 } 227 228 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 229 struct iwl_rx_cmd_buffer *rxb) 230 { 231 struct iwl_rx_packet *pkt = rxb_addr(rxb); 232 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 233 234 /* 235 * We could pass it to the iterator data, but also need to remember 236 * it for new interfaces that are added while in this state. 237 */ 238 mvm->fw_static_smps_request = 239 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 240 ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 241 iwl_mvm_intf_dual_chain_req, NULL); 242 } 243 244 /** 245 * enum iwl_rx_handler_context context for Rx handler 246 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 247 * which can't acquire mvm->mutex. 248 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 249 * (and only in this case!), it should be set as ASYNC. In that case, 250 * it will be called from a worker with mvm->mutex held. 251 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 252 * mutex itself, it will be called from a worker without mvm->mutex held. 253 */ 254 enum iwl_rx_handler_context { 255 RX_HANDLER_SYNC, 256 RX_HANDLER_ASYNC_LOCKED, 257 RX_HANDLER_ASYNC_UNLOCKED, 258 }; 259 260 /** 261 * struct iwl_rx_handlers handler for FW notification 262 * @cmd_id: command id 263 * @context: see &iwl_rx_handler_context 264 * @fn: the function is called when notification is received 265 */ 266 struct iwl_rx_handlers { 267 u16 cmd_id, min_size; 268 enum iwl_rx_handler_context context; 269 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 270 }; 271 272 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 273 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 274 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 275 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 276 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 277 { .cmd_id = _cmd_id, .fn = _fn, \ 278 .context = _context, .min_size = sizeof(_struct), } 279 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 280 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 281 .context = _context, .min_size = sizeof(_struct), } 282 283 /* 284 * Handlers for fw notifications 285 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 286 * This list should be in order of frequency for performance purposes. 287 * 288 * The handler can be one from three contexts, see &iwl_rx_handler_context 289 */ 290 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 291 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 292 struct iwl_mvm_tx_resp), 293 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 294 struct iwl_mvm_ba_notif), 295 296 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 297 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 298 struct iwl_tlc_update_notif), 299 300 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 301 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 302 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 303 RX_HANDLER_ASYNC_LOCKED), 304 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 305 RX_HANDLER_ASYNC_LOCKED), 306 307 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 308 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 309 struct iwl_ba_window_status_notif), 310 311 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 312 RX_HANDLER_SYNC, struct iwl_time_event_notif), 313 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 314 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 315 struct iwl_mvm_session_prot_notif), 316 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 317 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 318 319 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 320 struct iwl_mvm_eosp_notification), 321 322 RX_HANDLER(SCAN_ITERATION_COMPLETE, 323 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 324 struct iwl_lmac_scan_complete_notif), 325 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 326 iwl_mvm_rx_lmac_scan_complete_notif, 327 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 328 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 329 iwl_mvm_rx_scan_match_found, 330 RX_HANDLER_SYNC), 331 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 332 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 333 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 334 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 335 struct iwl_umac_scan_iter_complete_notif), 336 337 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, 338 RX_HANDLER_SYNC, struct iwl_card_state_notif), 339 340 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 341 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 342 343 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 344 struct iwl_error_resp), 345 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 346 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 347 struct iwl_uapsd_misbehaving_ap_notif), 348 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 349 RX_HANDLER_ASYNC_LOCKED), 350 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 351 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 352 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 353 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 354 struct ct_kill_notif), 355 356 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 357 RX_HANDLER_ASYNC_LOCKED, 358 struct iwl_tdls_channel_switch_notif), 359 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 360 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 361 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 362 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 363 struct iwl_ftm_responder_stats), 364 365 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 366 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 367 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 368 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 369 370 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 371 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 372 struct iwl_mfu_assert_dump_notif), 373 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 374 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 375 struct iwl_stored_beacon_notif_v2), 376 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 377 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 378 struct iwl_mu_group_mgmt_notif), 379 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 380 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 381 struct iwl_mvm_pm_state_notification), 382 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 383 iwl_mvm_probe_resp_data_notif, 384 RX_HANDLER_ASYNC_LOCKED, 385 struct iwl_probe_resp_data_notif), 386 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 387 iwl_mvm_channel_switch_start_notif, 388 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 389 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 390 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 391 struct iwl_datapath_monitor_notif), 392 393 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 394 iwl_mvm_rx_thermal_dual_chain_req, 395 RX_HANDLER_ASYNC_LOCKED, 396 struct iwl_thermal_dual_chain_request), 397 }; 398 #undef RX_HANDLER 399 #undef RX_HANDLER_GRP 400 401 /* Please keep this array *SORTED* by hex value. 402 * Access is done through binary search 403 */ 404 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 405 HCMD_NAME(UCODE_ALIVE_NTFY), 406 HCMD_NAME(REPLY_ERROR), 407 HCMD_NAME(ECHO_CMD), 408 HCMD_NAME(INIT_COMPLETE_NOTIF), 409 HCMD_NAME(PHY_CONTEXT_CMD), 410 HCMD_NAME(DBG_CFG), 411 HCMD_NAME(SCAN_CFG_CMD), 412 HCMD_NAME(SCAN_REQ_UMAC), 413 HCMD_NAME(SCAN_ABORT_UMAC), 414 HCMD_NAME(SCAN_COMPLETE_UMAC), 415 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 416 HCMD_NAME(ADD_STA_KEY), 417 HCMD_NAME(ADD_STA), 418 HCMD_NAME(REMOVE_STA), 419 HCMD_NAME(FW_GET_ITEM_CMD), 420 HCMD_NAME(TX_CMD), 421 HCMD_NAME(SCD_QUEUE_CFG), 422 HCMD_NAME(TXPATH_FLUSH), 423 HCMD_NAME(MGMT_MCAST_KEY), 424 HCMD_NAME(WEP_KEY), 425 HCMD_NAME(SHARED_MEM_CFG), 426 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 427 HCMD_NAME(MAC_CONTEXT_CMD), 428 HCMD_NAME(TIME_EVENT_CMD), 429 HCMD_NAME(TIME_EVENT_NOTIFICATION), 430 HCMD_NAME(BINDING_CONTEXT_CMD), 431 HCMD_NAME(TIME_QUOTA_CMD), 432 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 433 HCMD_NAME(LEDS_CMD), 434 HCMD_NAME(LQ_CMD), 435 HCMD_NAME(FW_PAGING_BLOCK_CMD), 436 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 437 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 438 HCMD_NAME(HOT_SPOT_CMD), 439 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 440 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 441 HCMD_NAME(BT_COEX_CI), 442 HCMD_NAME(PHY_CONFIGURATION_CMD), 443 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 444 HCMD_NAME(PHY_DB_CMD), 445 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 446 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 447 HCMD_NAME(POWER_TABLE_CMD), 448 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 449 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 450 HCMD_NAME(DC2DC_CONFIG_CMD), 451 HCMD_NAME(NVM_ACCESS_CMD), 452 HCMD_NAME(BEACON_NOTIFICATION), 453 HCMD_NAME(BEACON_TEMPLATE_CMD), 454 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 455 HCMD_NAME(BT_CONFIG), 456 HCMD_NAME(STATISTICS_CMD), 457 HCMD_NAME(STATISTICS_NOTIFICATION), 458 HCMD_NAME(EOSP_NOTIFICATION), 459 HCMD_NAME(REDUCE_TX_POWER_CMD), 460 HCMD_NAME(CARD_STATE_NOTIFICATION), 461 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 462 HCMD_NAME(TDLS_CONFIG_CMD), 463 HCMD_NAME(MAC_PM_POWER_TABLE), 464 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 465 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 466 HCMD_NAME(RSS_CONFIG_CMD), 467 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 468 HCMD_NAME(REPLY_RX_PHY_CMD), 469 HCMD_NAME(REPLY_RX_MPDU_CMD), 470 HCMD_NAME(BAR_FRAME_RELEASE), 471 HCMD_NAME(FRAME_RELEASE), 472 HCMD_NAME(BA_NOTIF), 473 HCMD_NAME(MCC_UPDATE_CMD), 474 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 475 HCMD_NAME(MARKER_CMD), 476 HCMD_NAME(BT_PROFILE_NOTIFICATION), 477 HCMD_NAME(BCAST_FILTER_CMD), 478 HCMD_NAME(MCAST_FILTER_CMD), 479 HCMD_NAME(REPLY_SF_CFG_CMD), 480 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 481 HCMD_NAME(D3_CONFIG_CMD), 482 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 483 HCMD_NAME(OFFLOADS_QUERY_CMD), 484 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 485 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 486 HCMD_NAME(WOWLAN_PATTERNS), 487 HCMD_NAME(WOWLAN_CONFIGURATION), 488 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 489 HCMD_NAME(WOWLAN_TKIP_PARAM), 490 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 491 HCMD_NAME(WOWLAN_GET_STATUSES), 492 HCMD_NAME(SCAN_ITERATION_COMPLETE), 493 HCMD_NAME(D0I3_END_CMD), 494 HCMD_NAME(LTR_CONFIG), 495 HCMD_NAME(LDBG_CONFIG_CMD), 496 }; 497 498 /* Please keep this array *SORTED* by hex value. 499 * Access is done through binary search 500 */ 501 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 502 HCMD_NAME(SHARED_MEM_CFG_CMD), 503 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 504 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 505 }; 506 507 /* Please keep this array *SORTED* by hex value. 508 * Access is done through binary search 509 */ 510 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 511 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 512 HCMD_NAME(SESSION_PROTECTION_CMD), 513 HCMD_NAME(SESSION_PROTECTION_NOTIF), 514 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 515 }; 516 517 /* Please keep this array *SORTED* by hex value. 518 * Access is done through binary search 519 */ 520 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 521 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 522 HCMD_NAME(CTDP_CONFIG_CMD), 523 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 524 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 525 HCMD_NAME(CT_KILL_NOTIFICATION), 526 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 527 }; 528 529 /* Please keep this array *SORTED* by hex value. 530 * Access is done through binary search 531 */ 532 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 533 HCMD_NAME(DQA_ENABLE_CMD), 534 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 535 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 536 HCMD_NAME(STA_HE_CTXT_CMD), 537 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 538 HCMD_NAME(TLC_MNG_CONFIG_CMD), 539 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 540 HCMD_NAME(MONITOR_NOTIF), 541 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 542 HCMD_NAME(STA_PM_NOTIF), 543 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 544 HCMD_NAME(RX_QUEUES_NOTIFICATION), 545 }; 546 547 /* Please keep this array *SORTED* by hex value. 548 * Access is done through binary search 549 */ 550 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 551 HCMD_NAME(TOF_RANGE_REQ_CMD), 552 HCMD_NAME(TOF_CONFIG_CMD), 553 HCMD_NAME(TOF_RANGE_ABORT_CMD), 554 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 555 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 556 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 557 HCMD_NAME(TOF_LC_NOTIF), 558 HCMD_NAME(TOF_RESPONDER_STATS), 559 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 560 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 561 }; 562 563 /* Please keep this array *SORTED* by hex value. 564 * Access is done through binary search 565 */ 566 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 567 HCMD_NAME(STORED_BEACON_NTF), 568 }; 569 570 /* Please keep this array *SORTED* by hex value. 571 * Access is done through binary search 572 */ 573 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 574 HCMD_NAME(NVM_ACCESS_COMPLETE), 575 HCMD_NAME(NVM_GET_INFO), 576 HCMD_NAME(TAS_CONFIG), 577 }; 578 579 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 580 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 581 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 582 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 583 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 584 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 585 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 586 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 587 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 588 [REGULATORY_AND_NVM_GROUP] = 589 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 590 }; 591 592 /* this forward declaration can avoid to export the function */ 593 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 594 595 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 596 { 597 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 598 u64 dflt_pwr_limit; 599 600 if (!backoff) 601 return 0; 602 603 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 604 605 while (backoff->pwr) { 606 if (dflt_pwr_limit >= backoff->pwr) 607 return backoff->backoff; 608 609 backoff++; 610 } 611 612 return 0; 613 } 614 615 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 616 { 617 struct iwl_mvm *mvm = 618 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 619 struct ieee80211_vif *tx_blocked_vif; 620 struct iwl_mvm_vif *mvmvif; 621 622 mutex_lock(&mvm->mutex); 623 624 tx_blocked_vif = 625 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 626 lockdep_is_held(&mvm->mutex)); 627 628 if (!tx_blocked_vif) 629 goto unlock; 630 631 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 632 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 633 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 634 unlock: 635 mutex_unlock(&mvm->mutex); 636 } 637 638 static int iwl_mvm_fwrt_dump_start(void *ctx) 639 { 640 struct iwl_mvm *mvm = ctx; 641 642 mutex_lock(&mvm->mutex); 643 644 return 0; 645 } 646 647 static void iwl_mvm_fwrt_dump_end(void *ctx) 648 { 649 struct iwl_mvm *mvm = ctx; 650 651 mutex_unlock(&mvm->mutex); 652 } 653 654 static bool iwl_mvm_fwrt_fw_running(void *ctx) 655 { 656 return iwl_mvm_firmware_running(ctx); 657 } 658 659 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 660 { 661 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 662 int ret; 663 664 mutex_lock(&mvm->mutex); 665 ret = iwl_mvm_send_cmd(mvm, host_cmd); 666 mutex_unlock(&mvm->mutex); 667 668 return ret; 669 } 670 671 static bool iwl_mvm_d3_debug_enable(void *ctx) 672 { 673 return IWL_MVM_D3_DEBUG; 674 } 675 676 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 677 .dump_start = iwl_mvm_fwrt_dump_start, 678 .dump_end = iwl_mvm_fwrt_dump_end, 679 .fw_running = iwl_mvm_fwrt_fw_running, 680 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 681 .d3_debug_enable = iwl_mvm_d3_debug_enable, 682 }; 683 684 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 685 { 686 int ret; 687 688 rtnl_lock(); 689 wiphy_lock(mvm->hw->wiphy); 690 mutex_lock(&mvm->mutex); 691 692 ret = iwl_run_init_mvm_ucode(mvm); 693 694 if (ret && ret != -ERFKILL) 695 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 696 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 697 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 698 ret = iwl_mvm_init_mcc(mvm); 699 } 700 701 if (!iwlmvm_mod_params.init_dbg || !ret) 702 iwl_mvm_stop_device(mvm); 703 704 mutex_unlock(&mvm->mutex); 705 wiphy_unlock(mvm->hw->wiphy); 706 rtnl_unlock(); 707 708 if (ret < 0) 709 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 710 711 return ret; 712 } 713 714 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 715 { 716 int ret; 717 718 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 719 720 ret = iwl_mvm_mac_setup_register(mvm); 721 if (ret) 722 return ret; 723 mvm->hw_registered = true; 724 725 iwl_mvm_dbgfs_register(mvm); 726 727 return 0; 728 } 729 730 struct iwl_mvm_frob_txf_data { 731 u8 *buf; 732 size_t buflen; 733 }; 734 735 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 736 struct ieee80211_vif *vif, 737 struct ieee80211_sta *sta, 738 struct ieee80211_key_conf *key, 739 void *data) 740 { 741 struct iwl_mvm_frob_txf_data *txf = data; 742 u8 keylen, match, matchend; 743 u8 *keydata; 744 size_t i; 745 746 switch (key->cipher) { 747 case WLAN_CIPHER_SUITE_CCMP: 748 keydata = key->key; 749 keylen = key->keylen; 750 break; 751 case WLAN_CIPHER_SUITE_WEP40: 752 case WLAN_CIPHER_SUITE_WEP104: 753 case WLAN_CIPHER_SUITE_TKIP: 754 /* 755 * WEP has short keys which might show up in the payload, 756 * and then you can deduce the key, so in this case just 757 * remove all FIFO data. 758 * For TKIP, we don't know the phase 2 keys here, so same. 759 */ 760 memset(txf->buf, 0xBB, txf->buflen); 761 return; 762 default: 763 return; 764 } 765 766 /* scan for key material and clear it out */ 767 match = 0; 768 for (i = 0; i < txf->buflen; i++) { 769 if (txf->buf[i] != keydata[match]) { 770 match = 0; 771 continue; 772 } 773 match++; 774 if (match == keylen) { 775 memset(txf->buf + i - keylen, 0xAA, keylen); 776 match = 0; 777 } 778 } 779 780 /* we're dealing with a FIFO, so check wrapped around data */ 781 matchend = match; 782 for (i = 0; match && i < keylen - match; i++) { 783 if (txf->buf[i] != keydata[match]) 784 break; 785 match++; 786 if (match == keylen) { 787 memset(txf->buf, 0xAA, i + 1); 788 memset(txf->buf + txf->buflen - matchend, 0xAA, 789 matchend); 790 break; 791 } 792 } 793 } 794 795 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 796 { 797 struct iwl_mvm_frob_txf_data txf = { 798 .buf = buf, 799 .buflen = buflen, 800 }; 801 struct iwl_mvm *mvm = ctx; 802 803 /* embedded key material exists only on old API */ 804 if (iwl_mvm_has_new_tx_api(mvm)) 805 return; 806 807 rcu_read_lock(); 808 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 809 rcu_read_unlock(); 810 } 811 812 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 813 { 814 /* we only use wide headers for commands */ 815 struct iwl_cmd_header_wide *hdr = hcmd; 816 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 817 818 if (len < sizeof(hdr)) 819 return; 820 821 /* all the commands we care about are in LONG_GROUP */ 822 if (hdr->group_id != LONG_GROUP) 823 return; 824 825 switch (hdr->cmd) { 826 case WEP_KEY: 827 case WOWLAN_TKIP_PARAM: 828 case WOWLAN_KEK_KCK_MATERIAL: 829 case ADD_STA_KEY: 830 /* 831 * blank out everything here, easier than dealing 832 * with the various versions of the command 833 */ 834 frob_end = INT_MAX; 835 break; 836 case MGMT_MCAST_KEY: 837 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 838 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 839 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 840 841 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 842 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 843 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 844 break; 845 } 846 847 if (frob_start >= frob_end) 848 return; 849 850 if (frob_end > len) 851 frob_end = len; 852 853 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 854 } 855 856 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 857 { 858 const struct iwl_dump_exclude *excl; 859 struct iwl_mvm *mvm = ctx; 860 int i; 861 862 switch (mvm->fwrt.cur_fw_img) { 863 case IWL_UCODE_INIT: 864 default: 865 /* not relevant */ 866 return; 867 case IWL_UCODE_REGULAR: 868 case IWL_UCODE_REGULAR_USNIFFER: 869 excl = mvm->fw->dump_excl; 870 break; 871 case IWL_UCODE_WOWLAN: 872 excl = mvm->fw->dump_excl_wowlan; 873 break; 874 } 875 876 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 877 sizeof(mvm->fw->dump_excl_wowlan)); 878 879 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 880 u32 start, end; 881 882 if (!excl[i].addr || !excl[i].size) 883 continue; 884 885 start = excl[i].addr; 886 end = start + excl[i].size; 887 888 if (end <= mem_addr || start >= mem_addr + buflen) 889 continue; 890 891 if (start < mem_addr) 892 start = mem_addr; 893 894 if (end > mem_addr + buflen) 895 end = mem_addr + buflen; 896 897 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 898 } 899 } 900 901 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 902 .frob_txf = iwl_mvm_frob_txf, 903 .frob_hcmd = iwl_mvm_frob_hcmd, 904 .frob_mem = iwl_mvm_frob_mem, 905 }; 906 907 static struct iwl_op_mode * 908 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 909 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 910 { 911 struct ieee80211_hw *hw; 912 struct iwl_op_mode *op_mode; 913 struct iwl_mvm *mvm; 914 struct iwl_trans_config trans_cfg = {}; 915 static const u8 no_reclaim_cmds[] = { 916 TX_CMD, 917 }; 918 int err, scan_size; 919 u32 min_backoff; 920 enum iwl_amsdu_size rb_size_default; 921 922 /* 923 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 924 * index all over the driver - check that its value corresponds to the 925 * array size. 926 */ 927 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 928 IWL_MVM_STATION_COUNT_MAX); 929 930 /******************************** 931 * 1. Allocating and configuring HW data 932 ********************************/ 933 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 934 sizeof(struct iwl_mvm), 935 &iwl_mvm_hw_ops); 936 if (!hw) 937 return NULL; 938 939 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 940 941 if (cfg->max_tx_agg_size) 942 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 943 else 944 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 945 946 op_mode = hw->priv; 947 948 mvm = IWL_OP_MODE_GET_MVM(op_mode); 949 mvm->dev = trans->dev; 950 mvm->trans = trans; 951 mvm->cfg = cfg; 952 mvm->fw = fw; 953 mvm->hw = hw; 954 955 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 956 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 957 958 iwl_mvm_get_acpi_tables(mvm); 959 960 mvm->init_status = 0; 961 962 if (iwl_mvm_has_new_rx_api(mvm)) { 963 op_mode->ops = &iwl_mvm_ops_mq; 964 trans->rx_mpdu_cmd_hdr_size = 965 (trans->trans_cfg->device_family >= 966 IWL_DEVICE_FAMILY_AX210) ? 967 sizeof(struct iwl_rx_mpdu_desc) : 968 IWL_RX_DESC_SIZE_V1; 969 } else { 970 op_mode->ops = &iwl_mvm_ops; 971 trans->rx_mpdu_cmd_hdr_size = 972 sizeof(struct iwl_rx_mpdu_res_start); 973 974 if (WARN_ON(trans->num_rx_queues > 1)) 975 goto out_free; 976 } 977 978 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 979 980 if (iwl_mvm_has_new_tx_api(mvm)) { 981 /* 982 * If we have the new TX/queue allocation API initialize them 983 * all to invalid numbers. We'll rewrite the ones that we need 984 * later, but that doesn't happen for all of them all of the 985 * time (e.g. P2P Device is optional), and if a dynamic queue 986 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 987 * iwl_mvm_is_static_queue() erroneously returns true, and we 988 * might have things getting stuck. 989 */ 990 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 991 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 992 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 993 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 994 } else { 995 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 996 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 997 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 998 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 999 } 1000 1001 mvm->sf_state = SF_UNINIT; 1002 if (iwl_mvm_has_unified_ucode(mvm)) 1003 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1004 else 1005 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1006 mvm->drop_bcn_ap_mode = true; 1007 1008 mutex_init(&mvm->mutex); 1009 spin_lock_init(&mvm->async_handlers_lock); 1010 INIT_LIST_HEAD(&mvm->time_event_list); 1011 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1012 INIT_LIST_HEAD(&mvm->async_handlers_list); 1013 spin_lock_init(&mvm->time_event_lock); 1014 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1015 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1016 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1017 1018 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1019 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1020 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1021 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1022 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1023 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1024 1025 init_waitqueue_head(&mvm->rx_sync_waitq); 1026 1027 mvm->queue_sync_state = 0; 1028 1029 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1030 1031 spin_lock_init(&mvm->tcm.lock); 1032 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1033 mvm->tcm.ts = jiffies; 1034 mvm->tcm.ll_ts = jiffies; 1035 mvm->tcm.uapsd_nonagg_ts = jiffies; 1036 1037 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1038 1039 mvm->cmd_ver.d0i3_resp = 1040 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 1041 0); 1042 /* we only support version 1 */ 1043 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 1044 goto out_free; 1045 1046 mvm->cmd_ver.range_resp = 1047 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1048 TOF_RANGE_RESPONSE_NOTIF, 5); 1049 /* we only support up to version 9 */ 1050 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1051 goto out_free; 1052 1053 /* 1054 * Populate the state variables that the transport layer needs 1055 * to know about. 1056 */ 1057 trans_cfg.op_mode = op_mode; 1058 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1059 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1060 1061 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 1062 rb_size_default = IWL_AMSDU_2K; 1063 else 1064 rb_size_default = IWL_AMSDU_4K; 1065 1066 switch (iwlwifi_mod_params.amsdu_size) { 1067 case IWL_AMSDU_DEF: 1068 trans_cfg.rx_buf_size = rb_size_default; 1069 break; 1070 case IWL_AMSDU_4K: 1071 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1072 break; 1073 case IWL_AMSDU_8K: 1074 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1075 break; 1076 case IWL_AMSDU_12K: 1077 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1078 break; 1079 default: 1080 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1081 iwlwifi_mod_params.amsdu_size); 1082 trans_cfg.rx_buf_size = rb_size_default; 1083 } 1084 1085 trans->wide_cmd_header = true; 1086 trans_cfg.bc_table_dword = 1087 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1088 1089 trans_cfg.command_groups = iwl_mvm_groups; 1090 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1091 1092 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1093 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1094 trans_cfg.scd_set_active = true; 1095 1096 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1097 driver_data[2]); 1098 1099 /* Set a short watchdog for the command queue */ 1100 trans_cfg.cmd_q_wdg_timeout = 1101 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1102 1103 snprintf(mvm->hw->wiphy->fw_version, 1104 sizeof(mvm->hw->wiphy->fw_version), 1105 "%s", fw->fw_version); 1106 1107 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1108 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1109 1110 /* Configure transport layer */ 1111 iwl_trans_configure(mvm->trans, &trans_cfg); 1112 1113 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1114 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1115 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1116 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1117 sizeof(trans->dbg.conf_tlv)); 1118 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1119 1120 trans->iml = mvm->fw->iml; 1121 trans->iml_len = mvm->fw->iml_len; 1122 1123 /* set up notification wait support */ 1124 iwl_notification_wait_init(&mvm->notif_wait); 1125 1126 /* Init phy db */ 1127 mvm->phy_db = iwl_phy_db_init(trans); 1128 if (!mvm->phy_db) { 1129 IWL_ERR(mvm, "Cannot init phy_db\n"); 1130 goto out_free; 1131 } 1132 1133 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1134 mvm->trans->name, mvm->trans->hw_rev); 1135 1136 if (iwlwifi_mod_params.nvm_file) 1137 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1138 else 1139 IWL_DEBUG_EEPROM(mvm->trans->dev, 1140 "working without external nvm file\n"); 1141 1142 err = iwl_trans_start_hw(mvm->trans); 1143 if (err) 1144 goto out_free; 1145 1146 scan_size = iwl_mvm_scan_size(mvm); 1147 1148 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1149 if (!mvm->scan_cmd) 1150 goto out_free; 1151 1152 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1153 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1154 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1155 1156 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1157 mvm->last_ebs_successful = true; 1158 1159 min_backoff = iwl_mvm_min_backoff(mvm); 1160 iwl_mvm_thermal_initialize(mvm, min_backoff); 1161 1162 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1163 memset(&mvm->rx_stats_v3, 0, 1164 sizeof(struct mvm_statistics_rx_v3)); 1165 else 1166 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1167 1168 mvm->debugfs_dir = dbgfs_dir; 1169 1170 if (iwl_mvm_start_get_nvm(mvm)) 1171 goto out_thermal_exit; 1172 1173 if (iwl_mvm_start_post_nvm(mvm)) 1174 goto out_thermal_exit; 1175 1176 return op_mode; 1177 1178 out_thermal_exit: 1179 iwl_mvm_thermal_exit(mvm); 1180 out_free: 1181 iwl_fw_flush_dumps(&mvm->fwrt); 1182 iwl_fw_runtime_free(&mvm->fwrt); 1183 1184 if (iwlmvm_mod_params.init_dbg) 1185 return op_mode; 1186 iwl_phy_db_free(mvm->phy_db); 1187 kfree(mvm->scan_cmd); 1188 iwl_trans_op_mode_leave(trans); 1189 1190 ieee80211_free_hw(mvm->hw); 1191 return NULL; 1192 } 1193 1194 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1195 { 1196 lockdep_assert_held(&mvm->mutex); 1197 1198 iwl_fw_cancel_timestamp(&mvm->fwrt); 1199 1200 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1201 1202 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1203 iwl_trans_stop_device(mvm->trans); 1204 iwl_free_fw_paging(&mvm->fwrt); 1205 iwl_fw_dump_conf_clear(&mvm->fwrt); 1206 } 1207 1208 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1209 { 1210 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1211 int i; 1212 1213 iwl_mvm_leds_exit(mvm); 1214 1215 iwl_mvm_thermal_exit(mvm); 1216 1217 ieee80211_unregister_hw(mvm->hw); 1218 1219 kfree(mvm->scan_cmd); 1220 kfree(mvm->mcast_filter_cmd); 1221 mvm->mcast_filter_cmd = NULL; 1222 1223 kfree(mvm->error_recovery_buf); 1224 mvm->error_recovery_buf = NULL; 1225 1226 iwl_trans_op_mode_leave(mvm->trans); 1227 1228 iwl_phy_db_free(mvm->phy_db); 1229 mvm->phy_db = NULL; 1230 1231 kfree(mvm->nvm_data); 1232 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1233 kfree(mvm->nvm_sections[i].data); 1234 1235 cancel_delayed_work_sync(&mvm->tcm.work); 1236 1237 iwl_fw_runtime_free(&mvm->fwrt); 1238 mutex_destroy(&mvm->mutex); 1239 1240 ieee80211_free_hw(mvm->hw); 1241 } 1242 1243 struct iwl_async_handler_entry { 1244 struct list_head list; 1245 struct iwl_rx_cmd_buffer rxb; 1246 enum iwl_rx_handler_context context; 1247 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1248 }; 1249 1250 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1251 { 1252 struct iwl_async_handler_entry *entry, *tmp; 1253 1254 spin_lock_bh(&mvm->async_handlers_lock); 1255 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1256 iwl_free_rxb(&entry->rxb); 1257 list_del(&entry->list); 1258 kfree(entry); 1259 } 1260 spin_unlock_bh(&mvm->async_handlers_lock); 1261 } 1262 1263 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1264 { 1265 struct iwl_mvm *mvm = 1266 container_of(wk, struct iwl_mvm, async_handlers_wk); 1267 struct iwl_async_handler_entry *entry, *tmp; 1268 LIST_HEAD(local_list); 1269 1270 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1271 1272 /* 1273 * Sync with Rx path with a lock. Remove all the entries from this list, 1274 * add them to a local one (lock free), and then handle them. 1275 */ 1276 spin_lock_bh(&mvm->async_handlers_lock); 1277 list_splice_init(&mvm->async_handlers_list, &local_list); 1278 spin_unlock_bh(&mvm->async_handlers_lock); 1279 1280 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1281 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1282 mutex_lock(&mvm->mutex); 1283 entry->fn(mvm, &entry->rxb); 1284 iwl_free_rxb(&entry->rxb); 1285 list_del(&entry->list); 1286 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1287 mutex_unlock(&mvm->mutex); 1288 kfree(entry); 1289 } 1290 } 1291 1292 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1293 struct iwl_rx_packet *pkt) 1294 { 1295 struct iwl_fw_dbg_trigger_tlv *trig; 1296 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1297 int i; 1298 1299 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1300 FW_DBG_TRIGGER_FW_NOTIF); 1301 if (!trig) 1302 return; 1303 1304 cmds_trig = (void *)trig->data; 1305 1306 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1307 /* don't collect on CMD 0 */ 1308 if (!cmds_trig->cmds[i].cmd_id) 1309 break; 1310 1311 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1312 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1313 continue; 1314 1315 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1316 "CMD 0x%02x.%02x received", 1317 pkt->hdr.group_id, pkt->hdr.cmd); 1318 break; 1319 } 1320 } 1321 1322 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1323 struct iwl_rx_cmd_buffer *rxb, 1324 struct iwl_rx_packet *pkt) 1325 { 1326 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1327 int i; 1328 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1329 1330 iwl_dbg_tlv_time_point(&mvm->fwrt, 1331 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1332 iwl_mvm_rx_check_trigger(mvm, pkt); 1333 1334 /* 1335 * Do the notification wait before RX handlers so 1336 * even if the RX handler consumes the RXB we have 1337 * access to it in the notification wait entry. 1338 */ 1339 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1340 1341 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1342 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1343 struct iwl_async_handler_entry *entry; 1344 1345 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1346 continue; 1347 1348 if (unlikely(pkt_len < rx_h->min_size)) 1349 return; 1350 1351 if (rx_h->context == RX_HANDLER_SYNC) { 1352 rx_h->fn(mvm, rxb); 1353 return; 1354 } 1355 1356 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1357 /* we can't do much... */ 1358 if (!entry) 1359 return; 1360 1361 entry->rxb._page = rxb_steal_page(rxb); 1362 entry->rxb._offset = rxb->_offset; 1363 entry->rxb._rx_page_order = rxb->_rx_page_order; 1364 entry->fn = rx_h->fn; 1365 entry->context = rx_h->context; 1366 spin_lock(&mvm->async_handlers_lock); 1367 list_add_tail(&entry->list, &mvm->async_handlers_list); 1368 spin_unlock(&mvm->async_handlers_lock); 1369 schedule_work(&mvm->async_handlers_wk); 1370 break; 1371 } 1372 } 1373 1374 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1375 struct napi_struct *napi, 1376 struct iwl_rx_cmd_buffer *rxb) 1377 { 1378 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1379 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1380 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1381 1382 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1383 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1384 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1385 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1386 else 1387 iwl_mvm_rx_common(mvm, rxb, pkt); 1388 } 1389 1390 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1391 struct napi_struct *napi, 1392 struct iwl_rx_cmd_buffer *rxb) 1393 { 1394 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1395 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1396 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1397 1398 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1399 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1400 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1401 RX_QUEUES_NOTIFICATION))) 1402 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1403 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1404 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1405 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1406 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1407 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1408 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1409 else 1410 iwl_mvm_rx_common(mvm, rxb, pkt); 1411 } 1412 1413 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1414 const struct iwl_device_cmd *cmd) 1415 { 1416 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1417 1418 /* 1419 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1420 * commands that need to block the Tx queues. 1421 */ 1422 iwl_trans_block_txq_ptrs(mvm->trans, false); 1423 } 1424 1425 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1426 { 1427 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1428 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1429 } 1430 1431 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1432 int hw_queue, bool start) 1433 { 1434 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1435 struct ieee80211_sta *sta; 1436 struct ieee80211_txq *txq; 1437 struct iwl_mvm_txq *mvmtxq; 1438 int i; 1439 unsigned long tid_bitmap; 1440 struct iwl_mvm_sta *mvmsta; 1441 u8 sta_id; 1442 1443 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1444 mvm->tvqm_info[hw_queue].sta_id : 1445 mvm->queue_info[hw_queue].ra_sta_id; 1446 1447 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1448 return; 1449 1450 rcu_read_lock(); 1451 1452 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1453 if (IS_ERR_OR_NULL(sta)) 1454 goto out; 1455 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1456 1457 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1458 if (!start) 1459 ieee80211_stop_queues(mvm->hw); 1460 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1461 ieee80211_wake_queues(mvm->hw); 1462 1463 goto out; 1464 } 1465 1466 if (iwl_mvm_has_new_tx_api(mvm)) { 1467 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1468 1469 tid_bitmap = BIT(tid); 1470 } else { 1471 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1472 } 1473 1474 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1475 int tid = i; 1476 1477 if (tid == IWL_MAX_TID_COUNT) 1478 tid = IEEE80211_NUM_TIDS; 1479 1480 txq = sta->txq[tid]; 1481 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1482 mvmtxq->stopped = !start; 1483 1484 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1485 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1486 } 1487 1488 out: 1489 rcu_read_unlock(); 1490 } 1491 1492 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1493 { 1494 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1495 } 1496 1497 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1498 { 1499 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1500 } 1501 1502 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1503 { 1504 bool state = iwl_mvm_is_radio_killed(mvm); 1505 1506 if (state) 1507 wake_up(&mvm->rx_sync_waitq); 1508 1509 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1510 } 1511 1512 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1513 { 1514 if (state) 1515 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1516 else 1517 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1518 1519 iwl_mvm_set_rfkill_state(mvm); 1520 } 1521 1522 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1523 { 1524 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1525 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1526 bool unified = iwl_mvm_has_unified_ucode(mvm); 1527 1528 if (state) 1529 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1530 else 1531 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1532 1533 iwl_mvm_set_rfkill_state(mvm); 1534 1535 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1536 if (rfkill_safe_init_done) 1537 iwl_abort_notification_waits(&mvm->notif_wait); 1538 1539 /* 1540 * Don't ask the transport to stop the firmware. We'll do it 1541 * after cfg80211 takes us down. 1542 */ 1543 if (unified) 1544 return false; 1545 1546 /* 1547 * Stop the device if we run OPERATIONAL firmware or if we are in the 1548 * middle of the calibrations. 1549 */ 1550 return state && rfkill_safe_init_done; 1551 } 1552 1553 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1554 { 1555 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1556 struct ieee80211_tx_info *info; 1557 1558 info = IEEE80211_SKB_CB(skb); 1559 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1560 ieee80211_free_txskb(mvm->hw, skb); 1561 } 1562 1563 struct iwl_mvm_reprobe { 1564 struct device *dev; 1565 struct work_struct work; 1566 }; 1567 1568 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1569 { 1570 struct iwl_mvm_reprobe *reprobe; 1571 1572 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1573 if (device_reprobe(reprobe->dev)) 1574 dev_err(reprobe->dev, "reprobe failed!\n"); 1575 put_device(reprobe->dev); 1576 kfree(reprobe); 1577 module_put(THIS_MODULE); 1578 } 1579 1580 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1581 { 1582 iwl_abort_notification_waits(&mvm->notif_wait); 1583 iwl_dbg_tlv_del_timers(mvm->trans); 1584 1585 /* 1586 * This is a bit racy, but worst case we tell mac80211 about 1587 * a stopped/aborted scan when that was already done which 1588 * is not a problem. It is necessary to abort any os scan 1589 * here because mac80211 requires having the scan cleared 1590 * before restarting. 1591 * We'll reset the scan_status to NONE in restart cleanup in 1592 * the next start() call from mac80211. If restart isn't called 1593 * (no fw restart) scan status will stay busy. 1594 */ 1595 iwl_mvm_report_scan_aborted(mvm); 1596 1597 /* 1598 * If we're restarting already, don't cycle restarts. 1599 * If INIT fw asserted, it will likely fail again. 1600 * If WoWLAN fw asserted, don't restart either, mac80211 1601 * can't recover this since we're already half suspended. 1602 */ 1603 if (!mvm->fw_restart && fw_error) { 1604 iwl_fw_error_collect(&mvm->fwrt, false); 1605 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1606 &mvm->status)) { 1607 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1608 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1609 struct iwl_mvm_reprobe *reprobe; 1610 1611 IWL_ERR(mvm, 1612 "Firmware error during reconfiguration - reprobe!\n"); 1613 1614 /* 1615 * get a module reference to avoid doing this while unloading 1616 * anyway and to avoid scheduling a work with code that's 1617 * being removed. 1618 */ 1619 if (!try_module_get(THIS_MODULE)) { 1620 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1621 return; 1622 } 1623 1624 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1625 if (!reprobe) { 1626 module_put(THIS_MODULE); 1627 return; 1628 } 1629 reprobe->dev = get_device(mvm->trans->dev); 1630 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1631 schedule_work(&reprobe->work); 1632 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1633 &mvm->status)) { 1634 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1635 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1636 mvm->hw_registered && 1637 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1638 /* This should be first thing before trying to collect any 1639 * data to avoid endless loops if any HW error happens while 1640 * collecting debug data. 1641 */ 1642 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1643 1644 if (mvm->fw->ucode_capa.error_log_size) { 1645 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1646 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1647 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1648 1649 if (recover_buf) { 1650 mvm->error_recovery_buf = recover_buf; 1651 iwl_trans_read_mem_bytes(mvm->trans, 1652 src_addr, 1653 recover_buf, 1654 src_size); 1655 } 1656 } 1657 1658 iwl_fw_error_collect(&mvm->fwrt, false); 1659 1660 if (fw_error && mvm->fw_restart > 0) 1661 mvm->fw_restart--; 1662 ieee80211_restart_hw(mvm->hw); 1663 } 1664 } 1665 1666 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1667 { 1668 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1669 1670 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) 1671 iwl_mvm_dump_nic_error_log(mvm); 1672 1673 if (sync) { 1674 iwl_fw_error_collect(&mvm->fwrt, true); 1675 /* 1676 * Currently, the only case for sync=true is during 1677 * shutdown, so just stop in this case. If/when that 1678 * changes, we need to be a bit smarter here. 1679 */ 1680 return; 1681 } 1682 1683 /* 1684 * If the firmware crashes while we're already considering it 1685 * to be dead then don't ask for a restart, that cannot do 1686 * anything useful anyway. 1687 */ 1688 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1689 return; 1690 1691 iwl_mvm_nic_restart(mvm, true); 1692 } 1693 1694 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1695 { 1696 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1697 1698 WARN_ON(1); 1699 iwl_mvm_nic_restart(mvm, true); 1700 } 1701 1702 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1703 enum iwl_fw_ini_time_point tp_id, 1704 union iwl_dbg_tlv_tp_data *tp_data) 1705 { 1706 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1707 1708 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1709 } 1710 1711 #define IWL_MVM_COMMON_OPS \ 1712 /* these could be differentiated */ \ 1713 .async_cb = iwl_mvm_async_cb, \ 1714 .queue_full = iwl_mvm_stop_sw_queue, \ 1715 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1716 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1717 .free_skb = iwl_mvm_free_skb, \ 1718 .nic_error = iwl_mvm_nic_error, \ 1719 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1720 .nic_config = iwl_mvm_nic_config, \ 1721 /* as we only register one, these MUST be common! */ \ 1722 .start = iwl_op_mode_mvm_start, \ 1723 .stop = iwl_op_mode_mvm_stop, \ 1724 .time_point = iwl_op_mode_mvm_time_point 1725 1726 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1727 IWL_MVM_COMMON_OPS, 1728 .rx = iwl_mvm_rx, 1729 }; 1730 1731 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1732 struct napi_struct *napi, 1733 struct iwl_rx_cmd_buffer *rxb, 1734 unsigned int queue) 1735 { 1736 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1737 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1738 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1739 1740 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1741 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1742 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1743 RX_QUEUES_NOTIFICATION))) 1744 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1745 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1746 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1747 } 1748 1749 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1750 IWL_MVM_COMMON_OPS, 1751 .rx = iwl_mvm_rx_mq, 1752 .rx_rss = iwl_mvm_rx_mq_rss, 1753 }; 1754