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 mutex_lock(&mvm->mutex); 690 691 ret = iwl_run_init_mvm_ucode(mvm); 692 693 if (ret && ret != -ERFKILL) 694 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 695 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 696 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 697 ret = iwl_mvm_init_mcc(mvm); 698 } 699 700 if (!iwlmvm_mod_params.init_dbg || !ret) 701 iwl_mvm_stop_device(mvm); 702 703 mutex_unlock(&mvm->mutex); 704 rtnl_unlock(); 705 706 if (ret < 0) 707 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 708 709 return ret; 710 } 711 712 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 713 { 714 int ret; 715 716 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 717 718 ret = iwl_mvm_mac_setup_register(mvm); 719 if (ret) 720 return ret; 721 mvm->hw_registered = true; 722 723 iwl_mvm_dbgfs_register(mvm); 724 725 return 0; 726 } 727 728 struct iwl_mvm_frob_txf_data { 729 u8 *buf; 730 size_t buflen; 731 }; 732 733 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 734 struct ieee80211_vif *vif, 735 struct ieee80211_sta *sta, 736 struct ieee80211_key_conf *key, 737 void *data) 738 { 739 struct iwl_mvm_frob_txf_data *txf = data; 740 u8 keylen, match, matchend; 741 u8 *keydata; 742 size_t i; 743 744 switch (key->cipher) { 745 case WLAN_CIPHER_SUITE_CCMP: 746 keydata = key->key; 747 keylen = key->keylen; 748 break; 749 case WLAN_CIPHER_SUITE_WEP40: 750 case WLAN_CIPHER_SUITE_WEP104: 751 case WLAN_CIPHER_SUITE_TKIP: 752 /* 753 * WEP has short keys which might show up in the payload, 754 * and then you can deduce the key, so in this case just 755 * remove all FIFO data. 756 * For TKIP, we don't know the phase 2 keys here, so same. 757 */ 758 memset(txf->buf, 0xBB, txf->buflen); 759 return; 760 default: 761 return; 762 } 763 764 /* scan for key material and clear it out */ 765 match = 0; 766 for (i = 0; i < txf->buflen; i++) { 767 if (txf->buf[i] != keydata[match]) { 768 match = 0; 769 continue; 770 } 771 match++; 772 if (match == keylen) { 773 memset(txf->buf + i - keylen, 0xAA, keylen); 774 match = 0; 775 } 776 } 777 778 /* we're dealing with a FIFO, so check wrapped around data */ 779 matchend = match; 780 for (i = 0; match && i < keylen - match; i++) { 781 if (txf->buf[i] != keydata[match]) 782 break; 783 match++; 784 if (match == keylen) { 785 memset(txf->buf, 0xAA, i + 1); 786 memset(txf->buf + txf->buflen - matchend, 0xAA, 787 matchend); 788 break; 789 } 790 } 791 } 792 793 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 794 { 795 struct iwl_mvm_frob_txf_data txf = { 796 .buf = buf, 797 .buflen = buflen, 798 }; 799 struct iwl_mvm *mvm = ctx; 800 801 /* embedded key material exists only on old API */ 802 if (iwl_mvm_has_new_tx_api(mvm)) 803 return; 804 805 rcu_read_lock(); 806 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 807 rcu_read_unlock(); 808 } 809 810 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 811 { 812 /* we only use wide headers for commands */ 813 struct iwl_cmd_header_wide *hdr = hcmd; 814 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 815 816 if (len < sizeof(hdr)) 817 return; 818 819 /* all the commands we care about are in LONG_GROUP */ 820 if (hdr->group_id != LONG_GROUP) 821 return; 822 823 switch (hdr->cmd) { 824 case WEP_KEY: 825 case WOWLAN_TKIP_PARAM: 826 case WOWLAN_KEK_KCK_MATERIAL: 827 case ADD_STA_KEY: 828 /* 829 * blank out everything here, easier than dealing 830 * with the various versions of the command 831 */ 832 frob_end = INT_MAX; 833 break; 834 case MGMT_MCAST_KEY: 835 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 836 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 837 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 838 839 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 840 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 841 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 842 break; 843 } 844 845 if (frob_start >= frob_end) 846 return; 847 848 if (frob_end > len) 849 frob_end = len; 850 851 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 852 } 853 854 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 855 { 856 const struct iwl_dump_exclude *excl; 857 struct iwl_mvm *mvm = ctx; 858 int i; 859 860 switch (mvm->fwrt.cur_fw_img) { 861 case IWL_UCODE_INIT: 862 default: 863 /* not relevant */ 864 return; 865 case IWL_UCODE_REGULAR: 866 case IWL_UCODE_REGULAR_USNIFFER: 867 excl = mvm->fw->dump_excl; 868 break; 869 case IWL_UCODE_WOWLAN: 870 excl = mvm->fw->dump_excl_wowlan; 871 break; 872 } 873 874 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 875 sizeof(mvm->fw->dump_excl_wowlan)); 876 877 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 878 u32 start, end; 879 880 if (!excl[i].addr || !excl[i].size) 881 continue; 882 883 start = excl[i].addr; 884 end = start + excl[i].size; 885 886 if (end <= mem_addr || start >= mem_addr + buflen) 887 continue; 888 889 if (start < mem_addr) 890 start = mem_addr; 891 892 if (end > mem_addr + buflen) 893 end = mem_addr + buflen; 894 895 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 896 } 897 } 898 899 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 900 .frob_txf = iwl_mvm_frob_txf, 901 .frob_hcmd = iwl_mvm_frob_hcmd, 902 .frob_mem = iwl_mvm_frob_mem, 903 }; 904 905 static struct iwl_op_mode * 906 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 907 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 908 { 909 struct ieee80211_hw *hw; 910 struct iwl_op_mode *op_mode; 911 struct iwl_mvm *mvm; 912 struct iwl_trans_config trans_cfg = {}; 913 static const u8 no_reclaim_cmds[] = { 914 TX_CMD, 915 }; 916 int err, scan_size; 917 u32 min_backoff; 918 enum iwl_amsdu_size rb_size_default; 919 920 /* 921 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 922 * index all over the driver - check that its value corresponds to the 923 * array size. 924 */ 925 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 926 IWL_MVM_STATION_COUNT_MAX); 927 928 /******************************** 929 * 1. Allocating and configuring HW data 930 ********************************/ 931 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 932 sizeof(struct iwl_mvm), 933 &iwl_mvm_hw_ops); 934 if (!hw) 935 return NULL; 936 937 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 938 939 if (cfg->max_tx_agg_size) 940 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 941 else 942 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 943 944 op_mode = hw->priv; 945 946 mvm = IWL_OP_MODE_GET_MVM(op_mode); 947 mvm->dev = trans->dev; 948 mvm->trans = trans; 949 mvm->cfg = cfg; 950 mvm->fw = fw; 951 mvm->hw = hw; 952 953 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 954 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 955 956 iwl_mvm_get_acpi_tables(mvm); 957 958 mvm->init_status = 0; 959 960 if (iwl_mvm_has_new_rx_api(mvm)) { 961 op_mode->ops = &iwl_mvm_ops_mq; 962 trans->rx_mpdu_cmd_hdr_size = 963 (trans->trans_cfg->device_family >= 964 IWL_DEVICE_FAMILY_AX210) ? 965 sizeof(struct iwl_rx_mpdu_desc) : 966 IWL_RX_DESC_SIZE_V1; 967 } else { 968 op_mode->ops = &iwl_mvm_ops; 969 trans->rx_mpdu_cmd_hdr_size = 970 sizeof(struct iwl_rx_mpdu_res_start); 971 972 if (WARN_ON(trans->num_rx_queues > 1)) 973 goto out_free; 974 } 975 976 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 977 978 if (iwl_mvm_has_new_tx_api(mvm)) { 979 /* 980 * If we have the new TX/queue allocation API initialize them 981 * all to invalid numbers. We'll rewrite the ones that we need 982 * later, but that doesn't happen for all of them all of the 983 * time (e.g. P2P Device is optional), and if a dynamic queue 984 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 985 * iwl_mvm_is_static_queue() erroneously returns true, and we 986 * might have things getting stuck. 987 */ 988 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 989 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 990 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 991 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 992 } else { 993 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 994 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 995 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 996 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 997 } 998 999 mvm->sf_state = SF_UNINIT; 1000 if (iwl_mvm_has_unified_ucode(mvm)) 1001 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1002 else 1003 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1004 mvm->drop_bcn_ap_mode = true; 1005 1006 mutex_init(&mvm->mutex); 1007 spin_lock_init(&mvm->async_handlers_lock); 1008 INIT_LIST_HEAD(&mvm->time_event_list); 1009 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1010 INIT_LIST_HEAD(&mvm->async_handlers_list); 1011 spin_lock_init(&mvm->time_event_lock); 1012 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1013 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1014 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1015 1016 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1017 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1018 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1019 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1020 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1021 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1022 1023 init_waitqueue_head(&mvm->rx_sync_waitq); 1024 1025 mvm->queue_sync_state = 0; 1026 1027 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1028 1029 spin_lock_init(&mvm->tcm.lock); 1030 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1031 mvm->tcm.ts = jiffies; 1032 mvm->tcm.ll_ts = jiffies; 1033 mvm->tcm.uapsd_nonagg_ts = jiffies; 1034 1035 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1036 1037 mvm->cmd_ver.d0i3_resp = 1038 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 1039 0); 1040 /* we only support version 1 */ 1041 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 1042 goto out_free; 1043 1044 mvm->cmd_ver.range_resp = 1045 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1046 TOF_RANGE_RESPONSE_NOTIF, 5); 1047 /* we only support up to version 9 */ 1048 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1049 goto out_free; 1050 1051 /* 1052 * Populate the state variables that the transport layer needs 1053 * to know about. 1054 */ 1055 trans_cfg.op_mode = op_mode; 1056 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1057 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1058 1059 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 1060 rb_size_default = IWL_AMSDU_2K; 1061 else 1062 rb_size_default = IWL_AMSDU_4K; 1063 1064 switch (iwlwifi_mod_params.amsdu_size) { 1065 case IWL_AMSDU_DEF: 1066 trans_cfg.rx_buf_size = rb_size_default; 1067 break; 1068 case IWL_AMSDU_4K: 1069 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1070 break; 1071 case IWL_AMSDU_8K: 1072 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1073 break; 1074 case IWL_AMSDU_12K: 1075 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1076 break; 1077 default: 1078 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1079 iwlwifi_mod_params.amsdu_size); 1080 trans_cfg.rx_buf_size = rb_size_default; 1081 } 1082 1083 trans->wide_cmd_header = true; 1084 trans_cfg.bc_table_dword = 1085 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1086 1087 trans_cfg.command_groups = iwl_mvm_groups; 1088 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1089 1090 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1091 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1092 trans_cfg.scd_set_active = true; 1093 1094 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1095 driver_data[2]); 1096 1097 /* Set a short watchdog for the command queue */ 1098 trans_cfg.cmd_q_wdg_timeout = 1099 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1100 1101 snprintf(mvm->hw->wiphy->fw_version, 1102 sizeof(mvm->hw->wiphy->fw_version), 1103 "%s", fw->fw_version); 1104 1105 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1106 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1107 1108 /* Configure transport layer */ 1109 iwl_trans_configure(mvm->trans, &trans_cfg); 1110 1111 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1112 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1113 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1114 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1115 sizeof(trans->dbg.conf_tlv)); 1116 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1117 1118 trans->iml = mvm->fw->iml; 1119 trans->iml_len = mvm->fw->iml_len; 1120 1121 /* set up notification wait support */ 1122 iwl_notification_wait_init(&mvm->notif_wait); 1123 1124 /* Init phy db */ 1125 mvm->phy_db = iwl_phy_db_init(trans); 1126 if (!mvm->phy_db) { 1127 IWL_ERR(mvm, "Cannot init phy_db\n"); 1128 goto out_free; 1129 } 1130 1131 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1132 mvm->trans->name, mvm->trans->hw_rev); 1133 1134 if (iwlwifi_mod_params.nvm_file) 1135 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1136 else 1137 IWL_DEBUG_EEPROM(mvm->trans->dev, 1138 "working without external nvm file\n"); 1139 1140 err = iwl_trans_start_hw(mvm->trans); 1141 if (err) 1142 goto out_free; 1143 1144 scan_size = iwl_mvm_scan_size(mvm); 1145 1146 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1147 if (!mvm->scan_cmd) 1148 goto out_free; 1149 1150 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1151 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1152 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1153 1154 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1155 mvm->last_ebs_successful = true; 1156 1157 min_backoff = iwl_mvm_min_backoff(mvm); 1158 iwl_mvm_thermal_initialize(mvm, min_backoff); 1159 1160 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1161 memset(&mvm->rx_stats_v3, 0, 1162 sizeof(struct mvm_statistics_rx_v3)); 1163 else 1164 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1165 1166 mvm->debugfs_dir = dbgfs_dir; 1167 1168 if (iwl_mvm_start_get_nvm(mvm)) 1169 goto out_thermal_exit; 1170 1171 if (iwl_mvm_start_post_nvm(mvm)) 1172 goto out_thermal_exit; 1173 1174 return op_mode; 1175 1176 out_thermal_exit: 1177 iwl_mvm_thermal_exit(mvm); 1178 out_free: 1179 iwl_fw_flush_dumps(&mvm->fwrt); 1180 iwl_fw_runtime_free(&mvm->fwrt); 1181 1182 if (iwlmvm_mod_params.init_dbg) 1183 return op_mode; 1184 iwl_phy_db_free(mvm->phy_db); 1185 kfree(mvm->scan_cmd); 1186 iwl_trans_op_mode_leave(trans); 1187 1188 ieee80211_free_hw(mvm->hw); 1189 return NULL; 1190 } 1191 1192 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1193 { 1194 lockdep_assert_held(&mvm->mutex); 1195 1196 iwl_fw_cancel_timestamp(&mvm->fwrt); 1197 1198 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1199 1200 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1201 iwl_trans_stop_device(mvm->trans); 1202 iwl_free_fw_paging(&mvm->fwrt); 1203 iwl_fw_dump_conf_clear(&mvm->fwrt); 1204 } 1205 1206 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1207 { 1208 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1209 int i; 1210 1211 iwl_mvm_leds_exit(mvm); 1212 1213 iwl_mvm_thermal_exit(mvm); 1214 1215 ieee80211_unregister_hw(mvm->hw); 1216 1217 kfree(mvm->scan_cmd); 1218 kfree(mvm->mcast_filter_cmd); 1219 mvm->mcast_filter_cmd = NULL; 1220 1221 kfree(mvm->error_recovery_buf); 1222 mvm->error_recovery_buf = NULL; 1223 1224 iwl_trans_op_mode_leave(mvm->trans); 1225 1226 iwl_phy_db_free(mvm->phy_db); 1227 mvm->phy_db = NULL; 1228 1229 kfree(mvm->nvm_data); 1230 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1231 kfree(mvm->nvm_sections[i].data); 1232 1233 cancel_delayed_work_sync(&mvm->tcm.work); 1234 1235 iwl_fw_runtime_free(&mvm->fwrt); 1236 mutex_destroy(&mvm->mutex); 1237 1238 ieee80211_free_hw(mvm->hw); 1239 } 1240 1241 struct iwl_async_handler_entry { 1242 struct list_head list; 1243 struct iwl_rx_cmd_buffer rxb; 1244 enum iwl_rx_handler_context context; 1245 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1246 }; 1247 1248 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1249 { 1250 struct iwl_async_handler_entry *entry, *tmp; 1251 1252 spin_lock_bh(&mvm->async_handlers_lock); 1253 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1254 iwl_free_rxb(&entry->rxb); 1255 list_del(&entry->list); 1256 kfree(entry); 1257 } 1258 spin_unlock_bh(&mvm->async_handlers_lock); 1259 } 1260 1261 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1262 { 1263 struct iwl_mvm *mvm = 1264 container_of(wk, struct iwl_mvm, async_handlers_wk); 1265 struct iwl_async_handler_entry *entry, *tmp; 1266 LIST_HEAD(local_list); 1267 1268 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1269 1270 /* 1271 * Sync with Rx path with a lock. Remove all the entries from this list, 1272 * add them to a local one (lock free), and then handle them. 1273 */ 1274 spin_lock_bh(&mvm->async_handlers_lock); 1275 list_splice_init(&mvm->async_handlers_list, &local_list); 1276 spin_unlock_bh(&mvm->async_handlers_lock); 1277 1278 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1279 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1280 mutex_lock(&mvm->mutex); 1281 entry->fn(mvm, &entry->rxb); 1282 iwl_free_rxb(&entry->rxb); 1283 list_del(&entry->list); 1284 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1285 mutex_unlock(&mvm->mutex); 1286 kfree(entry); 1287 } 1288 } 1289 1290 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1291 struct iwl_rx_packet *pkt) 1292 { 1293 struct iwl_fw_dbg_trigger_tlv *trig; 1294 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1295 int i; 1296 1297 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1298 FW_DBG_TRIGGER_FW_NOTIF); 1299 if (!trig) 1300 return; 1301 1302 cmds_trig = (void *)trig->data; 1303 1304 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1305 /* don't collect on CMD 0 */ 1306 if (!cmds_trig->cmds[i].cmd_id) 1307 break; 1308 1309 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1310 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1311 continue; 1312 1313 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1314 "CMD 0x%02x.%02x received", 1315 pkt->hdr.group_id, pkt->hdr.cmd); 1316 break; 1317 } 1318 } 1319 1320 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1321 struct iwl_rx_cmd_buffer *rxb, 1322 struct iwl_rx_packet *pkt) 1323 { 1324 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1325 int i; 1326 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1327 1328 iwl_dbg_tlv_time_point(&mvm->fwrt, 1329 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1330 iwl_mvm_rx_check_trigger(mvm, pkt); 1331 1332 /* 1333 * Do the notification wait before RX handlers so 1334 * even if the RX handler consumes the RXB we have 1335 * access to it in the notification wait entry. 1336 */ 1337 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1338 1339 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1340 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1341 struct iwl_async_handler_entry *entry; 1342 1343 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1344 continue; 1345 1346 if (unlikely(pkt_len < rx_h->min_size)) 1347 return; 1348 1349 if (rx_h->context == RX_HANDLER_SYNC) { 1350 rx_h->fn(mvm, rxb); 1351 return; 1352 } 1353 1354 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1355 /* we can't do much... */ 1356 if (!entry) 1357 return; 1358 1359 entry->rxb._page = rxb_steal_page(rxb); 1360 entry->rxb._offset = rxb->_offset; 1361 entry->rxb._rx_page_order = rxb->_rx_page_order; 1362 entry->fn = rx_h->fn; 1363 entry->context = rx_h->context; 1364 spin_lock(&mvm->async_handlers_lock); 1365 list_add_tail(&entry->list, &mvm->async_handlers_list); 1366 spin_unlock(&mvm->async_handlers_lock); 1367 schedule_work(&mvm->async_handlers_wk); 1368 break; 1369 } 1370 } 1371 1372 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1373 struct napi_struct *napi, 1374 struct iwl_rx_cmd_buffer *rxb) 1375 { 1376 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1377 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1378 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1379 1380 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1381 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1382 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1383 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1384 else 1385 iwl_mvm_rx_common(mvm, rxb, pkt); 1386 } 1387 1388 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1389 struct napi_struct *napi, 1390 struct iwl_rx_cmd_buffer *rxb) 1391 { 1392 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1393 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1394 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1395 1396 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1397 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1398 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1399 RX_QUEUES_NOTIFICATION))) 1400 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1401 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1402 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1403 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1404 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1405 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1406 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1407 else 1408 iwl_mvm_rx_common(mvm, rxb, pkt); 1409 } 1410 1411 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1412 const struct iwl_device_cmd *cmd) 1413 { 1414 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1415 1416 /* 1417 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1418 * commands that need to block the Tx queues. 1419 */ 1420 iwl_trans_block_txq_ptrs(mvm->trans, false); 1421 } 1422 1423 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1424 { 1425 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1426 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1427 } 1428 1429 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1430 int hw_queue, bool start) 1431 { 1432 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1433 struct ieee80211_sta *sta; 1434 struct ieee80211_txq *txq; 1435 struct iwl_mvm_txq *mvmtxq; 1436 int i; 1437 unsigned long tid_bitmap; 1438 struct iwl_mvm_sta *mvmsta; 1439 u8 sta_id; 1440 1441 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1442 mvm->tvqm_info[hw_queue].sta_id : 1443 mvm->queue_info[hw_queue].ra_sta_id; 1444 1445 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1446 return; 1447 1448 rcu_read_lock(); 1449 1450 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1451 if (IS_ERR_OR_NULL(sta)) 1452 goto out; 1453 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1454 1455 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1456 if (!start) 1457 ieee80211_stop_queues(mvm->hw); 1458 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1459 ieee80211_wake_queues(mvm->hw); 1460 1461 goto out; 1462 } 1463 1464 if (iwl_mvm_has_new_tx_api(mvm)) { 1465 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1466 1467 tid_bitmap = BIT(tid); 1468 } else { 1469 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1470 } 1471 1472 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1473 int tid = i; 1474 1475 if (tid == IWL_MAX_TID_COUNT) 1476 tid = IEEE80211_NUM_TIDS; 1477 1478 txq = sta->txq[tid]; 1479 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1480 mvmtxq->stopped = !start; 1481 1482 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1483 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1484 } 1485 1486 out: 1487 rcu_read_unlock(); 1488 } 1489 1490 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1491 { 1492 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1493 } 1494 1495 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1496 { 1497 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1498 } 1499 1500 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1501 { 1502 bool state = iwl_mvm_is_radio_killed(mvm); 1503 1504 if (state) 1505 wake_up(&mvm->rx_sync_waitq); 1506 1507 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1508 } 1509 1510 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1511 { 1512 if (state) 1513 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1514 else 1515 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1516 1517 iwl_mvm_set_rfkill_state(mvm); 1518 } 1519 1520 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1521 { 1522 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1523 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1524 bool unified = iwl_mvm_has_unified_ucode(mvm); 1525 1526 if (state) 1527 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1528 else 1529 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1530 1531 iwl_mvm_set_rfkill_state(mvm); 1532 1533 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1534 if (rfkill_safe_init_done) 1535 iwl_abort_notification_waits(&mvm->notif_wait); 1536 1537 /* 1538 * Don't ask the transport to stop the firmware. We'll do it 1539 * after cfg80211 takes us down. 1540 */ 1541 if (unified) 1542 return false; 1543 1544 /* 1545 * Stop the device if we run OPERATIONAL firmware or if we are in the 1546 * middle of the calibrations. 1547 */ 1548 return state && rfkill_safe_init_done; 1549 } 1550 1551 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1552 { 1553 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1554 struct ieee80211_tx_info *info; 1555 1556 info = IEEE80211_SKB_CB(skb); 1557 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1558 ieee80211_free_txskb(mvm->hw, skb); 1559 } 1560 1561 struct iwl_mvm_reprobe { 1562 struct device *dev; 1563 struct work_struct work; 1564 }; 1565 1566 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1567 { 1568 struct iwl_mvm_reprobe *reprobe; 1569 1570 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1571 if (device_reprobe(reprobe->dev)) 1572 dev_err(reprobe->dev, "reprobe failed!\n"); 1573 put_device(reprobe->dev); 1574 kfree(reprobe); 1575 module_put(THIS_MODULE); 1576 } 1577 1578 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1579 { 1580 iwl_abort_notification_waits(&mvm->notif_wait); 1581 iwl_dbg_tlv_del_timers(mvm->trans); 1582 1583 /* 1584 * This is a bit racy, but worst case we tell mac80211 about 1585 * a stopped/aborted scan when that was already done which 1586 * is not a problem. It is necessary to abort any os scan 1587 * here because mac80211 requires having the scan cleared 1588 * before restarting. 1589 * We'll reset the scan_status to NONE in restart cleanup in 1590 * the next start() call from mac80211. If restart isn't called 1591 * (no fw restart) scan status will stay busy. 1592 */ 1593 iwl_mvm_report_scan_aborted(mvm); 1594 1595 /* 1596 * If we're restarting already, don't cycle restarts. 1597 * If INIT fw asserted, it will likely fail again. 1598 * If WoWLAN fw asserted, don't restart either, mac80211 1599 * can't recover this since we're already half suspended. 1600 */ 1601 if (!mvm->fw_restart && fw_error) { 1602 iwl_fw_error_collect(&mvm->fwrt, false); 1603 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1604 struct iwl_mvm_reprobe *reprobe; 1605 1606 IWL_ERR(mvm, 1607 "Firmware error during reconfiguration - reprobe!\n"); 1608 1609 /* 1610 * get a module reference to avoid doing this while unloading 1611 * anyway and to avoid scheduling a work with code that's 1612 * being removed. 1613 */ 1614 if (!try_module_get(THIS_MODULE)) { 1615 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1616 return; 1617 } 1618 1619 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1620 if (!reprobe) { 1621 module_put(THIS_MODULE); 1622 return; 1623 } 1624 reprobe->dev = get_device(mvm->trans->dev); 1625 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1626 schedule_work(&reprobe->work); 1627 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1628 &mvm->status)) { 1629 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1630 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1631 mvm->hw_registered && 1632 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1633 /* This should be first thing before trying to collect any 1634 * data to avoid endless loops if any HW error happens while 1635 * collecting debug data. 1636 */ 1637 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1638 1639 if (mvm->fw->ucode_capa.error_log_size) { 1640 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1641 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1642 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1643 1644 if (recover_buf) { 1645 mvm->error_recovery_buf = recover_buf; 1646 iwl_trans_read_mem_bytes(mvm->trans, 1647 src_addr, 1648 recover_buf, 1649 src_size); 1650 } 1651 } 1652 1653 iwl_fw_error_collect(&mvm->fwrt, false); 1654 1655 if (fw_error && mvm->fw_restart > 0) 1656 mvm->fw_restart--; 1657 ieee80211_restart_hw(mvm->hw); 1658 } 1659 } 1660 1661 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1662 { 1663 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1664 1665 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) 1666 iwl_mvm_dump_nic_error_log(mvm); 1667 1668 if (sync) { 1669 iwl_fw_error_collect(&mvm->fwrt, true); 1670 /* 1671 * Currently, the only case for sync=true is during 1672 * shutdown, so just stop in this case. If/when that 1673 * changes, we need to be a bit smarter here. 1674 */ 1675 return; 1676 } 1677 1678 /* 1679 * If the firmware crashes while we're already considering it 1680 * to be dead then don't ask for a restart, that cannot do 1681 * anything useful anyway. 1682 */ 1683 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1684 return; 1685 1686 iwl_mvm_nic_restart(mvm, true); 1687 } 1688 1689 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1690 { 1691 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1692 1693 WARN_ON(1); 1694 iwl_mvm_nic_restart(mvm, true); 1695 } 1696 1697 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1698 enum iwl_fw_ini_time_point tp_id, 1699 union iwl_dbg_tlv_tp_data *tp_data) 1700 { 1701 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1702 1703 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1704 } 1705 1706 #define IWL_MVM_COMMON_OPS \ 1707 /* these could be differentiated */ \ 1708 .async_cb = iwl_mvm_async_cb, \ 1709 .queue_full = iwl_mvm_stop_sw_queue, \ 1710 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1711 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1712 .free_skb = iwl_mvm_free_skb, \ 1713 .nic_error = iwl_mvm_nic_error, \ 1714 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1715 .nic_config = iwl_mvm_nic_config, \ 1716 /* as we only register one, these MUST be common! */ \ 1717 .start = iwl_op_mode_mvm_start, \ 1718 .stop = iwl_op_mode_mvm_stop, \ 1719 .time_point = iwl_op_mode_mvm_time_point 1720 1721 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1722 IWL_MVM_COMMON_OPS, 1723 .rx = iwl_mvm_rx, 1724 }; 1725 1726 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1727 struct napi_struct *napi, 1728 struct iwl_rx_cmd_buffer *rxb, 1729 unsigned int queue) 1730 { 1731 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1732 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1733 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1734 1735 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1736 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1737 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1738 RX_QUEUES_NOTIFICATION))) 1739 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1740 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1741 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1742 } 1743 1744 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1745 IWL_MVM_COMMON_OPS, 1746 .rx = iwl_mvm_rx_mq, 1747 .rx_rss = iwl_mvm_rx_mq_rss, 1748 }; 1749