1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2020 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/module.h> 8 #include <linux/rtnetlink.h> 9 #include <linux/vmalloc.h> 10 #include <net/mac80211.h> 11 12 #include "fw/notif-wait.h" 13 #include "iwl-trans.h" 14 #include "iwl-op-mode.h" 15 #include "fw/img.h" 16 #include "iwl-debug.h" 17 #include "iwl-drv.h" 18 #include "iwl-modparams.h" 19 #include "mvm.h" 20 #include "iwl-phy-db.h" 21 #include "iwl-eeprom-parse.h" 22 #include "iwl-csr.h" 23 #include "iwl-io.h" 24 #include "iwl-prph.h" 25 #include "rs.h" 26 #include "fw/api/scan.h" 27 #include "time-event.h" 28 #include "fw-api.h" 29 #include "fw/acpi.h" 30 #include "fw/uefi.h" 31 32 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 33 MODULE_DESCRIPTION(DRV_DESCRIPTION); 34 MODULE_LICENSE("GPL"); 35 36 static const struct iwl_op_mode_ops iwl_mvm_ops; 37 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 38 39 struct iwl_mvm_mod_params iwlmvm_mod_params = { 40 .power_scheme = IWL_POWER_SCHEME_BPS, 41 /* rest of fields are 0 by default */ 42 }; 43 44 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 45 MODULE_PARM_DESC(init_dbg, 46 "set to true to debug an ASSERT in INIT fw (default: false"); 47 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 48 MODULE_PARM_DESC(power_scheme, 49 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 50 51 /* 52 * module init and exit functions 53 */ 54 static int __init iwl_mvm_init(void) 55 { 56 int ret; 57 58 ret = iwl_mvm_rate_control_register(); 59 if (ret) { 60 pr_err("Unable to register rate control algorithm: %d\n", ret); 61 return ret; 62 } 63 64 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 65 if (ret) 66 pr_err("Unable to register MVM op_mode: %d\n", ret); 67 68 return ret; 69 } 70 module_init(iwl_mvm_init); 71 72 static void __exit iwl_mvm_exit(void) 73 { 74 iwl_opmode_deregister("iwlmvm"); 75 iwl_mvm_rate_control_unregister(); 76 } 77 module_exit(iwl_mvm_exit); 78 79 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 80 { 81 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 82 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 83 u32 reg_val; 84 u32 phy_config = iwl_mvm_get_phy_config(mvm); 85 86 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 87 FW_PHY_CFG_RADIO_TYPE_POS; 88 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 89 FW_PHY_CFG_RADIO_STEP_POS; 90 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 91 FW_PHY_CFG_RADIO_DASH_POS; 92 93 /* SKU control */ 94 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); 95 96 /* radio configuration */ 97 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 98 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 99 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 100 101 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 102 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 103 104 /* 105 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 106 * sampling, and shouldn't be set to any non-zero value. 107 * The same is supposed to be true of the other HW, but unsetting 108 * them (such as the 7260) causes automatic tests to fail on seemingly 109 * unrelated errors. Need to further investigate this, but for now 110 * we'll separate cases. 111 */ 112 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 113 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 114 115 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 116 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 117 118 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 119 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | 120 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 121 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 122 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 123 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 124 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 125 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 126 reg_val); 127 128 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 129 radio_cfg_step, radio_cfg_dash); 130 131 /* 132 * W/A : NIC is stuck in a reset state after Early PCIe power off 133 * (PCIe power is lost before PERST# is asserted), causing ME FW 134 * to lose ownership and not being able to obtain it back. 135 */ 136 if (!mvm->trans->cfg->apmg_not_supported) 137 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 138 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 139 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 140 } 141 142 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 143 struct iwl_rx_cmd_buffer *rxb) 144 { 145 struct iwl_rx_packet *pkt = rxb_addr(rxb); 146 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 147 struct ieee80211_supported_band *sband; 148 const struct ieee80211_sta_he_cap *he_cap; 149 struct ieee80211_vif *vif; 150 151 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 152 return; 153 154 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 155 if (!vif || vif->type != NL80211_IFTYPE_STATION) 156 return; 157 158 if (!vif->bss_conf.chandef.chan || 159 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 160 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 161 return; 162 163 if (!vif->bss_conf.assoc) 164 return; 165 166 /* this shouldn't happen *again*, ignore it */ 167 if (mvm->cca_40mhz_workaround) 168 return; 169 170 /* 171 * We'll decrement this on disconnect - so set to 2 since we'll 172 * still have to disconnect from the current AP first. 173 */ 174 mvm->cca_40mhz_workaround = 2; 175 176 /* 177 * This capability manipulation isn't really ideal, but it's the 178 * easiest choice - otherwise we'd have to do some major changes 179 * in mac80211 to support this, which isn't worth it. This does 180 * mean that userspace may have outdated information, but that's 181 * actually not an issue at all. 182 */ 183 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 184 185 WARN_ON(!sband->ht_cap.ht_supported); 186 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 187 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 188 189 he_cap = ieee80211_get_he_iftype_cap(sband, 190 ieee80211_vif_type_p2p(vif)); 191 192 if (he_cap) { 193 /* we know that ours is writable */ 194 struct ieee80211_sta_he_cap *he = (void *)he_cap; 195 196 WARN_ON(!he->has_he); 197 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 198 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 199 he->he_cap_elem.phy_cap_info[0] &= 200 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 201 } 202 203 ieee80211_disconnect(vif, true); 204 } 205 206 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif) 207 { 208 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 209 struct iwl_mvm *mvm = mvmvif->mvm; 210 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 211 212 if (mvm->fw_static_smps_request && 213 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 && 214 vif->bss_conf.he_support) 215 mode = IEEE80211_SMPS_STATIC; 216 217 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode); 218 } 219 220 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 221 struct ieee80211_vif *vif) 222 { 223 iwl_mvm_apply_fw_smps_request(vif); 224 } 225 226 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 227 struct iwl_rx_cmd_buffer *rxb) 228 { 229 struct iwl_rx_packet *pkt = rxb_addr(rxb); 230 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 231 232 /* 233 * We could pass it to the iterator data, but also need to remember 234 * it for new interfaces that are added while in this state. 235 */ 236 mvm->fw_static_smps_request = 237 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 238 ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 239 iwl_mvm_intf_dual_chain_req, NULL); 240 } 241 242 /** 243 * enum iwl_rx_handler_context context for Rx handler 244 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 245 * which can't acquire mvm->mutex. 246 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 247 * (and only in this case!), it should be set as ASYNC. In that case, 248 * it will be called from a worker with mvm->mutex held. 249 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 250 * mutex itself, it will be called from a worker without mvm->mutex held. 251 */ 252 enum iwl_rx_handler_context { 253 RX_HANDLER_SYNC, 254 RX_HANDLER_ASYNC_LOCKED, 255 RX_HANDLER_ASYNC_UNLOCKED, 256 }; 257 258 /** 259 * struct iwl_rx_handlers handler for FW notification 260 * @cmd_id: command id 261 * @min_size: minimum size to expect for the notification 262 * @context: see &iwl_rx_handler_context 263 * @fn: the function is called when notification is received 264 */ 265 struct iwl_rx_handlers { 266 u16 cmd_id, min_size; 267 enum iwl_rx_handler_context context; 268 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 269 }; 270 271 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 272 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 273 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 274 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 275 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 276 { .cmd_id = _cmd_id, .fn = _fn, \ 277 .context = _context, .min_size = sizeof(_struct), } 278 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 279 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 280 .context = _context, .min_size = sizeof(_struct), } 281 282 /* 283 * Handlers for fw notifications 284 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 285 * This list should be in order of frequency for performance purposes. 286 * 287 * The handler can be one from three contexts, see &iwl_rx_handler_context 288 */ 289 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 290 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 291 struct iwl_mvm_tx_resp), 292 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 293 struct iwl_mvm_ba_notif), 294 295 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 296 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 297 struct iwl_tlc_update_notif), 298 299 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 300 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 301 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 302 RX_HANDLER_ASYNC_LOCKED), 303 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 304 RX_HANDLER_ASYNC_LOCKED), 305 306 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 307 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 308 struct iwl_ba_window_status_notif), 309 310 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 311 RX_HANDLER_SYNC, struct iwl_time_event_notif), 312 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 313 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 314 struct iwl_mvm_session_prot_notif), 315 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 316 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 317 318 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 319 struct iwl_mvm_eosp_notification), 320 321 RX_HANDLER(SCAN_ITERATION_COMPLETE, 322 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 323 struct iwl_lmac_scan_complete_notif), 324 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 325 iwl_mvm_rx_lmac_scan_complete_notif, 326 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 327 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 328 iwl_mvm_rx_scan_match_found, 329 RX_HANDLER_SYNC), 330 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 331 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 332 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 333 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 334 struct iwl_umac_scan_iter_complete_notif), 335 336 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 337 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 338 339 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 340 struct iwl_error_resp), 341 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 342 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 343 struct iwl_uapsd_misbehaving_ap_notif), 344 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 345 RX_HANDLER_ASYNC_LOCKED), 346 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 347 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 348 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 349 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 350 struct ct_kill_notif), 351 352 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 353 RX_HANDLER_ASYNC_LOCKED, 354 struct iwl_tdls_channel_switch_notif), 355 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 356 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 357 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 358 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 359 struct iwl_ftm_responder_stats), 360 361 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 362 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 363 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 364 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 365 366 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 367 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 368 struct iwl_mfu_assert_dump_notif), 369 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 370 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 371 struct iwl_stored_beacon_notif_v2), 372 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 373 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 374 struct iwl_mu_group_mgmt_notif), 375 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 376 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 377 struct iwl_mvm_pm_state_notification), 378 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 379 iwl_mvm_probe_resp_data_notif, 380 RX_HANDLER_ASYNC_LOCKED, 381 struct iwl_probe_resp_data_notif), 382 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 383 iwl_mvm_channel_switch_start_notif, 384 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 385 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 386 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 387 struct iwl_datapath_monitor_notif), 388 389 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 390 iwl_mvm_rx_thermal_dual_chain_req, 391 RX_HANDLER_ASYNC_LOCKED, 392 struct iwl_thermal_dual_chain_request), 393 }; 394 #undef RX_HANDLER 395 #undef RX_HANDLER_GRP 396 397 /* Please keep this array *SORTED* by hex value. 398 * Access is done through binary search 399 */ 400 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 401 HCMD_NAME(UCODE_ALIVE_NTFY), 402 HCMD_NAME(REPLY_ERROR), 403 HCMD_NAME(ECHO_CMD), 404 HCMD_NAME(INIT_COMPLETE_NOTIF), 405 HCMD_NAME(PHY_CONTEXT_CMD), 406 HCMD_NAME(DBG_CFG), 407 HCMD_NAME(SCAN_CFG_CMD), 408 HCMD_NAME(SCAN_REQ_UMAC), 409 HCMD_NAME(SCAN_ABORT_UMAC), 410 HCMD_NAME(SCAN_COMPLETE_UMAC), 411 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 412 HCMD_NAME(ADD_STA_KEY), 413 HCMD_NAME(ADD_STA), 414 HCMD_NAME(REMOVE_STA), 415 HCMD_NAME(FW_GET_ITEM_CMD), 416 HCMD_NAME(TX_CMD), 417 HCMD_NAME(SCD_QUEUE_CFG), 418 HCMD_NAME(TXPATH_FLUSH), 419 HCMD_NAME(MGMT_MCAST_KEY), 420 HCMD_NAME(WEP_KEY), 421 HCMD_NAME(SHARED_MEM_CFG), 422 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 423 HCMD_NAME(MAC_CONTEXT_CMD), 424 HCMD_NAME(TIME_EVENT_CMD), 425 HCMD_NAME(TIME_EVENT_NOTIFICATION), 426 HCMD_NAME(BINDING_CONTEXT_CMD), 427 HCMD_NAME(TIME_QUOTA_CMD), 428 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 429 HCMD_NAME(LEDS_CMD), 430 HCMD_NAME(LQ_CMD), 431 HCMD_NAME(FW_PAGING_BLOCK_CMD), 432 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 433 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 434 HCMD_NAME(HOT_SPOT_CMD), 435 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 436 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 437 HCMD_NAME(BT_COEX_CI), 438 HCMD_NAME(PHY_CONFIGURATION_CMD), 439 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 440 HCMD_NAME(PHY_DB_CMD), 441 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 442 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 443 HCMD_NAME(POWER_TABLE_CMD), 444 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 445 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 446 HCMD_NAME(DC2DC_CONFIG_CMD), 447 HCMD_NAME(NVM_ACCESS_CMD), 448 HCMD_NAME(BEACON_NOTIFICATION), 449 HCMD_NAME(BEACON_TEMPLATE_CMD), 450 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 451 HCMD_NAME(BT_CONFIG), 452 HCMD_NAME(STATISTICS_CMD), 453 HCMD_NAME(STATISTICS_NOTIFICATION), 454 HCMD_NAME(EOSP_NOTIFICATION), 455 HCMD_NAME(REDUCE_TX_POWER_CMD), 456 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 457 HCMD_NAME(TDLS_CONFIG_CMD), 458 HCMD_NAME(MAC_PM_POWER_TABLE), 459 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 460 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 461 HCMD_NAME(RSS_CONFIG_CMD), 462 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 463 HCMD_NAME(REPLY_RX_PHY_CMD), 464 HCMD_NAME(REPLY_RX_MPDU_CMD), 465 HCMD_NAME(BAR_FRAME_RELEASE), 466 HCMD_NAME(FRAME_RELEASE), 467 HCMD_NAME(BA_NOTIF), 468 HCMD_NAME(MCC_UPDATE_CMD), 469 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 470 HCMD_NAME(MARKER_CMD), 471 HCMD_NAME(BT_PROFILE_NOTIFICATION), 472 HCMD_NAME(BCAST_FILTER_CMD), 473 HCMD_NAME(MCAST_FILTER_CMD), 474 HCMD_NAME(REPLY_SF_CFG_CMD), 475 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 476 HCMD_NAME(D3_CONFIG_CMD), 477 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 478 HCMD_NAME(OFFLOADS_QUERY_CMD), 479 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 480 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 481 HCMD_NAME(WOWLAN_PATTERNS), 482 HCMD_NAME(WOWLAN_CONFIGURATION), 483 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 484 HCMD_NAME(WOWLAN_TKIP_PARAM), 485 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 486 HCMD_NAME(WOWLAN_GET_STATUSES), 487 HCMD_NAME(SCAN_ITERATION_COMPLETE), 488 HCMD_NAME(D0I3_END_CMD), 489 HCMD_NAME(LTR_CONFIG), 490 HCMD_NAME(LDBG_CONFIG_CMD), 491 }; 492 493 /* Please keep this array *SORTED* by hex value. 494 * Access is done through binary search 495 */ 496 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 497 HCMD_NAME(SHARED_MEM_CFG_CMD), 498 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 499 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 500 HCMD_NAME(RFI_CONFIG_CMD), 501 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 502 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 503 }; 504 505 /* Please keep this array *SORTED* by hex value. 506 * Access is done through binary search 507 */ 508 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 509 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 510 HCMD_NAME(SESSION_PROTECTION_CMD), 511 HCMD_NAME(SESSION_PROTECTION_NOTIF), 512 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 513 }; 514 515 /* Please keep this array *SORTED* by hex value. 516 * Access is done through binary search 517 */ 518 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 519 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 520 HCMD_NAME(CTDP_CONFIG_CMD), 521 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 522 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 523 HCMD_NAME(CT_KILL_NOTIFICATION), 524 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 525 }; 526 527 /* Please keep this array *SORTED* by hex value. 528 * Access is done through binary search 529 */ 530 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 531 HCMD_NAME(DQA_ENABLE_CMD), 532 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 533 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 534 HCMD_NAME(STA_HE_CTXT_CMD), 535 HCMD_NAME(RLC_CONFIG_CMD), 536 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 537 HCMD_NAME(TLC_MNG_CONFIG_CMD), 538 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 539 HCMD_NAME(MONITOR_NOTIF), 540 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 541 HCMD_NAME(STA_PM_NOTIF), 542 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 543 HCMD_NAME(RX_QUEUES_NOTIFICATION), 544 }; 545 546 /* Please keep this array *SORTED* by hex value. 547 * Access is done through binary search 548 */ 549 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 550 HCMD_NAME(TOF_RANGE_REQ_CMD), 551 HCMD_NAME(TOF_CONFIG_CMD), 552 HCMD_NAME(TOF_RANGE_ABORT_CMD), 553 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 554 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 555 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 556 HCMD_NAME(TOF_LC_NOTIF), 557 HCMD_NAME(TOF_RESPONDER_STATS), 558 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 559 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 560 }; 561 562 /* Please keep this array *SORTED* by hex value. 563 * Access is done through binary search 564 */ 565 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 566 HCMD_NAME(STORED_BEACON_NTF), 567 }; 568 569 /* Please keep this array *SORTED* by hex value. 570 * Access is done through binary search 571 */ 572 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 573 HCMD_NAME(NVM_ACCESS_COMPLETE), 574 HCMD_NAME(NVM_GET_INFO), 575 HCMD_NAME(TAS_CONFIG), 576 }; 577 578 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 579 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 580 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 581 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 582 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 583 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 584 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 585 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 586 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 587 [REGULATORY_AND_NVM_GROUP] = 588 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 589 }; 590 591 /* this forward declaration can avoid to export the function */ 592 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 593 594 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 595 { 596 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 597 u64 dflt_pwr_limit; 598 599 if (!backoff) 600 return 0; 601 602 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 603 604 while (backoff->pwr) { 605 if (dflt_pwr_limit >= backoff->pwr) 606 return backoff->backoff; 607 608 backoff++; 609 } 610 611 return 0; 612 } 613 614 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 615 { 616 struct iwl_mvm *mvm = 617 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 618 struct ieee80211_vif *tx_blocked_vif; 619 struct iwl_mvm_vif *mvmvif; 620 621 mutex_lock(&mvm->mutex); 622 623 tx_blocked_vif = 624 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 625 lockdep_is_held(&mvm->mutex)); 626 627 if (!tx_blocked_vif) 628 goto unlock; 629 630 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 631 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 632 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 633 unlock: 634 mutex_unlock(&mvm->mutex); 635 } 636 637 static int iwl_mvm_fwrt_dump_start(void *ctx) 638 { 639 struct iwl_mvm *mvm = ctx; 640 641 mutex_lock(&mvm->mutex); 642 643 return 0; 644 } 645 646 static void iwl_mvm_fwrt_dump_end(void *ctx) 647 { 648 struct iwl_mvm *mvm = ctx; 649 650 mutex_unlock(&mvm->mutex); 651 } 652 653 static bool iwl_mvm_fwrt_fw_running(void *ctx) 654 { 655 return iwl_mvm_firmware_running(ctx); 656 } 657 658 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 659 { 660 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 661 int ret; 662 663 mutex_lock(&mvm->mutex); 664 ret = iwl_mvm_send_cmd(mvm, host_cmd); 665 mutex_unlock(&mvm->mutex); 666 667 return ret; 668 } 669 670 static bool iwl_mvm_d3_debug_enable(void *ctx) 671 { 672 return IWL_MVM_D3_DEBUG; 673 } 674 675 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 676 .dump_start = iwl_mvm_fwrt_dump_start, 677 .dump_end = iwl_mvm_fwrt_dump_end, 678 .fw_running = iwl_mvm_fwrt_fw_running, 679 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 680 .d3_debug_enable = iwl_mvm_d3_debug_enable, 681 }; 682 683 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 684 { 685 struct iwl_trans *trans = mvm->trans; 686 int ret; 687 688 if (trans->csme_own) { 689 if (WARN(!mvm->mei_registered, 690 "csme is owner, but we aren't registered to iwlmei\n")) 691 goto get_nvm_from_fw; 692 693 mvm->mei_nvm_data = iwl_mei_get_nvm(); 694 if (mvm->mei_nvm_data) { 695 /* 696 * mvm->mei_nvm_data is set and because of that, 697 * we'll load the NVM from the FW when we'll get 698 * ownership. 699 */ 700 mvm->nvm_data = 701 iwl_parse_mei_nvm_data(trans, trans->cfg, 702 mvm->mei_nvm_data, mvm->fw); 703 return 0; 704 } 705 706 IWL_ERR(mvm, 707 "Got a NULL NVM from CSME, trying to get it from the device\n"); 708 } 709 710 get_nvm_from_fw: 711 rtnl_lock(); 712 wiphy_lock(mvm->hw->wiphy); 713 mutex_lock(&mvm->mutex); 714 715 ret = iwl_trans_start_hw(mvm->trans); 716 if (ret) { 717 mutex_unlock(&mvm->mutex); 718 wiphy_unlock(mvm->hw->wiphy); 719 rtnl_unlock(); 720 return ret; 721 } 722 723 ret = iwl_run_init_mvm_ucode(mvm); 724 if (ret && ret != -ERFKILL) 725 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 726 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 727 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 728 ret = iwl_mvm_init_mcc(mvm); 729 } 730 731 if (!iwlmvm_mod_params.init_dbg || !ret) 732 iwl_mvm_stop_device(mvm); 733 734 mutex_unlock(&mvm->mutex); 735 wiphy_unlock(mvm->hw->wiphy); 736 rtnl_unlock(); 737 738 if (ret) 739 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 740 741 return ret; 742 } 743 744 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 745 { 746 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 747 int ret; 748 749 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 750 751 ret = iwl_mvm_mac_setup_register(mvm); 752 if (ret) 753 return ret; 754 755 mvm->hw_registered = true; 756 757 iwl_mvm_dbgfs_register(mvm); 758 759 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 760 mvm->mei_rfkill_blocked, 761 RFKILL_HARD_BLOCK_NOT_OWNER); 762 763 iwl_mvm_mei_set_sw_rfkill_state(mvm); 764 765 return 0; 766 } 767 768 struct iwl_mvm_frob_txf_data { 769 u8 *buf; 770 size_t buflen; 771 }; 772 773 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 774 struct ieee80211_vif *vif, 775 struct ieee80211_sta *sta, 776 struct ieee80211_key_conf *key, 777 void *data) 778 { 779 struct iwl_mvm_frob_txf_data *txf = data; 780 u8 keylen, match, matchend; 781 u8 *keydata; 782 size_t i; 783 784 switch (key->cipher) { 785 case WLAN_CIPHER_SUITE_CCMP: 786 keydata = key->key; 787 keylen = key->keylen; 788 break; 789 case WLAN_CIPHER_SUITE_WEP40: 790 case WLAN_CIPHER_SUITE_WEP104: 791 case WLAN_CIPHER_SUITE_TKIP: 792 /* 793 * WEP has short keys which might show up in the payload, 794 * and then you can deduce the key, so in this case just 795 * remove all FIFO data. 796 * For TKIP, we don't know the phase 2 keys here, so same. 797 */ 798 memset(txf->buf, 0xBB, txf->buflen); 799 return; 800 default: 801 return; 802 } 803 804 /* scan for key material and clear it out */ 805 match = 0; 806 for (i = 0; i < txf->buflen; i++) { 807 if (txf->buf[i] != keydata[match]) { 808 match = 0; 809 continue; 810 } 811 match++; 812 if (match == keylen) { 813 memset(txf->buf + i - keylen, 0xAA, keylen); 814 match = 0; 815 } 816 } 817 818 /* we're dealing with a FIFO, so check wrapped around data */ 819 matchend = match; 820 for (i = 0; match && i < keylen - match; i++) { 821 if (txf->buf[i] != keydata[match]) 822 break; 823 match++; 824 if (match == keylen) { 825 memset(txf->buf, 0xAA, i + 1); 826 memset(txf->buf + txf->buflen - matchend, 0xAA, 827 matchend); 828 break; 829 } 830 } 831 } 832 833 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 834 { 835 struct iwl_mvm_frob_txf_data txf = { 836 .buf = buf, 837 .buflen = buflen, 838 }; 839 struct iwl_mvm *mvm = ctx; 840 841 /* embedded key material exists only on old API */ 842 if (iwl_mvm_has_new_tx_api(mvm)) 843 return; 844 845 rcu_read_lock(); 846 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 847 rcu_read_unlock(); 848 } 849 850 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 851 { 852 /* we only use wide headers for commands */ 853 struct iwl_cmd_header_wide *hdr = hcmd; 854 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 855 856 if (len < sizeof(hdr)) 857 return; 858 859 /* all the commands we care about are in LONG_GROUP */ 860 if (hdr->group_id != LONG_GROUP) 861 return; 862 863 switch (hdr->cmd) { 864 case WEP_KEY: 865 case WOWLAN_TKIP_PARAM: 866 case WOWLAN_KEK_KCK_MATERIAL: 867 case ADD_STA_KEY: 868 /* 869 * blank out everything here, easier than dealing 870 * with the various versions of the command 871 */ 872 frob_end = INT_MAX; 873 break; 874 case MGMT_MCAST_KEY: 875 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 876 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 877 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 878 879 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 880 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 881 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 882 break; 883 } 884 885 if (frob_start >= frob_end) 886 return; 887 888 if (frob_end > len) 889 frob_end = len; 890 891 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 892 } 893 894 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 895 { 896 const struct iwl_dump_exclude *excl; 897 struct iwl_mvm *mvm = ctx; 898 int i; 899 900 switch (mvm->fwrt.cur_fw_img) { 901 case IWL_UCODE_INIT: 902 default: 903 /* not relevant */ 904 return; 905 case IWL_UCODE_REGULAR: 906 case IWL_UCODE_REGULAR_USNIFFER: 907 excl = mvm->fw->dump_excl; 908 break; 909 case IWL_UCODE_WOWLAN: 910 excl = mvm->fw->dump_excl_wowlan; 911 break; 912 } 913 914 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 915 sizeof(mvm->fw->dump_excl_wowlan)); 916 917 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 918 u32 start, end; 919 920 if (!excl[i].addr || !excl[i].size) 921 continue; 922 923 start = excl[i].addr; 924 end = start + excl[i].size; 925 926 if (end <= mem_addr || start >= mem_addr + buflen) 927 continue; 928 929 if (start < mem_addr) 930 start = mem_addr; 931 932 if (end > mem_addr + buflen) 933 end = mem_addr + buflen; 934 935 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 936 } 937 } 938 939 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 940 .frob_txf = iwl_mvm_frob_txf, 941 .frob_hcmd = iwl_mvm_frob_hcmd, 942 .frob_mem = iwl_mvm_frob_mem, 943 }; 944 945 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 946 { 947 struct iwl_mvm *mvm = priv; 948 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 949 950 /* 951 * This is protected by the guarantee that this function will not be 952 * called twice on two different threads 953 */ 954 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 955 956 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 957 if (!curr_conn_info) 958 return; 959 960 curr_conn_info->conn_info = *conn_info; 961 962 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 963 964 if (prev_conn_info) 965 kfree_rcu(prev_conn_info, rcu_head); 966 } 967 968 static void iwl_mvm_mei_rfkill(void *priv, bool blocked) 969 { 970 struct iwl_mvm *mvm = priv; 971 972 mvm->mei_rfkill_blocked = blocked; 973 if (!mvm->hw_registered) 974 return; 975 976 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 977 mvm->mei_rfkill_blocked, 978 RFKILL_HARD_BLOCK_NOT_OWNER); 979 } 980 981 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 982 { 983 struct iwl_mvm *mvm = priv; 984 985 if (!mvm->hw_registered || !mvm->csme_vif) 986 return; 987 988 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 989 } 990 991 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 992 { 993 struct iwl_mvm *mvm = 994 container_of(wk, struct iwl_mvm, sap_connected_wk); 995 int ret; 996 997 ret = iwl_mvm_start_get_nvm(mvm); 998 if (ret) 999 goto out_free; 1000 1001 ret = iwl_mvm_start_post_nvm(mvm); 1002 if (ret) 1003 goto out_free; 1004 1005 return; 1006 1007 out_free: 1008 IWL_ERR(mvm, "Couldn't get started...\n"); 1009 iwl_mei_start_unregister(); 1010 iwl_mei_unregister_complete(); 1011 iwl_fw_flush_dumps(&mvm->fwrt); 1012 iwl_mvm_thermal_exit(mvm); 1013 iwl_fw_runtime_free(&mvm->fwrt); 1014 iwl_phy_db_free(mvm->phy_db); 1015 kfree(mvm->scan_cmd); 1016 iwl_trans_op_mode_leave(mvm->trans); 1017 kfree(mvm->nvm_data); 1018 kfree(mvm->mei_nvm_data); 1019 1020 ieee80211_free_hw(mvm->hw); 1021 } 1022 1023 static void iwl_mvm_mei_sap_connected(void *priv) 1024 { 1025 struct iwl_mvm *mvm = priv; 1026 1027 if (!mvm->hw_registered) 1028 schedule_work(&mvm->sap_connected_wk); 1029 } 1030 1031 static void iwl_mvm_mei_nic_stolen(void *priv) 1032 { 1033 struct iwl_mvm *mvm = priv; 1034 1035 rtnl_lock(); 1036 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1037 rtnl_unlock(); 1038 } 1039 1040 static const struct iwl_mei_ops mei_ops = { 1041 .me_conn_status = iwl_mvm_me_conn_status, 1042 .rfkill = iwl_mvm_mei_rfkill, 1043 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1044 .sap_connected = iwl_mvm_mei_sap_connected, 1045 .nic_stolen = iwl_mvm_mei_nic_stolen, 1046 }; 1047 1048 static struct iwl_op_mode * 1049 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1050 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1051 { 1052 struct ieee80211_hw *hw; 1053 struct iwl_op_mode *op_mode; 1054 struct iwl_mvm *mvm; 1055 struct iwl_trans_config trans_cfg = {}; 1056 static const u8 no_reclaim_cmds[] = { 1057 TX_CMD, 1058 }; 1059 int scan_size; 1060 u32 min_backoff; 1061 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1062 1063 /* 1064 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1065 * index all over the driver - check that its value corresponds to the 1066 * array size. 1067 */ 1068 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1069 IWL_MVM_STATION_COUNT_MAX); 1070 1071 /******************************** 1072 * 1. Allocating and configuring HW data 1073 ********************************/ 1074 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1075 sizeof(struct iwl_mvm), 1076 &iwl_mvm_hw_ops); 1077 if (!hw) 1078 return NULL; 1079 1080 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 1081 1082 if (cfg->max_tx_agg_size) 1083 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1084 else 1085 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 1086 1087 op_mode = hw->priv; 1088 1089 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1090 mvm->dev = trans->dev; 1091 mvm->trans = trans; 1092 mvm->cfg = cfg; 1093 mvm->fw = fw; 1094 mvm->hw = hw; 1095 1096 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1097 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1098 1099 iwl_mvm_get_acpi_tables(mvm); 1100 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1101 1102 mvm->init_status = 0; 1103 1104 if (iwl_mvm_has_new_rx_api(mvm)) { 1105 op_mode->ops = &iwl_mvm_ops_mq; 1106 trans->rx_mpdu_cmd_hdr_size = 1107 (trans->trans_cfg->device_family >= 1108 IWL_DEVICE_FAMILY_AX210) ? 1109 sizeof(struct iwl_rx_mpdu_desc) : 1110 IWL_RX_DESC_SIZE_V1; 1111 } else { 1112 op_mode->ops = &iwl_mvm_ops; 1113 trans->rx_mpdu_cmd_hdr_size = 1114 sizeof(struct iwl_rx_mpdu_res_start); 1115 1116 if (WARN_ON(trans->num_rx_queues > 1)) 1117 goto out_free; 1118 } 1119 1120 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1121 1122 if (iwl_mvm_has_new_tx_api(mvm)) { 1123 /* 1124 * If we have the new TX/queue allocation API initialize them 1125 * all to invalid numbers. We'll rewrite the ones that we need 1126 * later, but that doesn't happen for all of them all of the 1127 * time (e.g. P2P Device is optional), and if a dynamic queue 1128 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1129 * iwl_mvm_is_static_queue() erroneously returns true, and we 1130 * might have things getting stuck. 1131 */ 1132 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1133 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1134 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1135 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1136 } else { 1137 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1138 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1139 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1140 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1141 } 1142 1143 mvm->sf_state = SF_UNINIT; 1144 if (iwl_mvm_has_unified_ucode(mvm)) 1145 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1146 else 1147 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1148 mvm->drop_bcn_ap_mode = true; 1149 1150 mutex_init(&mvm->mutex); 1151 spin_lock_init(&mvm->async_handlers_lock); 1152 INIT_LIST_HEAD(&mvm->time_event_list); 1153 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1154 INIT_LIST_HEAD(&mvm->async_handlers_list); 1155 spin_lock_init(&mvm->time_event_lock); 1156 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1157 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1158 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1159 1160 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1161 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1162 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1163 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1164 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1165 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1166 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1167 1168 init_waitqueue_head(&mvm->rx_sync_waitq); 1169 1170 mvm->queue_sync_state = 0; 1171 1172 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1173 1174 spin_lock_init(&mvm->tcm.lock); 1175 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1176 mvm->tcm.ts = jiffies; 1177 mvm->tcm.ll_ts = jiffies; 1178 mvm->tcm.uapsd_nonagg_ts = jiffies; 1179 1180 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1181 1182 mvm->cmd_ver.d0i3_resp = 1183 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 1184 0); 1185 /* we only support version 1 */ 1186 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 1187 goto out_free; 1188 1189 mvm->cmd_ver.range_resp = 1190 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1191 TOF_RANGE_RESPONSE_NOTIF, 5); 1192 /* we only support up to version 9 */ 1193 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1194 goto out_free; 1195 1196 /* 1197 * Populate the state variables that the transport layer needs 1198 * to know about. 1199 */ 1200 trans_cfg.op_mode = op_mode; 1201 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1202 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1203 1204 switch (iwlwifi_mod_params.amsdu_size) { 1205 case IWL_AMSDU_DEF: 1206 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1207 break; 1208 case IWL_AMSDU_4K: 1209 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1210 break; 1211 case IWL_AMSDU_8K: 1212 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1213 break; 1214 case IWL_AMSDU_12K: 1215 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1216 break; 1217 default: 1218 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1219 iwlwifi_mod_params.amsdu_size); 1220 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1221 } 1222 1223 trans->wide_cmd_header = true; 1224 trans_cfg.bc_table_dword = 1225 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1226 1227 trans_cfg.command_groups = iwl_mvm_groups; 1228 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1229 1230 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1231 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1232 trans_cfg.scd_set_active = true; 1233 1234 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1235 driver_data[2]); 1236 1237 /* Set a short watchdog for the command queue */ 1238 trans_cfg.cmd_q_wdg_timeout = 1239 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1240 1241 snprintf(mvm->hw->wiphy->fw_version, 1242 sizeof(mvm->hw->wiphy->fw_version), 1243 "%s", fw->fw_version); 1244 1245 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1246 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1247 1248 /* Configure transport layer */ 1249 iwl_trans_configure(mvm->trans, &trans_cfg); 1250 1251 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1252 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1253 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1254 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1255 sizeof(trans->dbg.conf_tlv)); 1256 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1257 1258 trans->iml = mvm->fw->iml; 1259 trans->iml_len = mvm->fw->iml_len; 1260 1261 /* set up notification wait support */ 1262 iwl_notification_wait_init(&mvm->notif_wait); 1263 1264 /* Init phy db */ 1265 mvm->phy_db = iwl_phy_db_init(trans); 1266 if (!mvm->phy_db) { 1267 IWL_ERR(mvm, "Cannot init phy_db\n"); 1268 goto out_free; 1269 } 1270 1271 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1272 mvm->trans->name, mvm->trans->hw_rev); 1273 1274 if (iwlwifi_mod_params.nvm_file) 1275 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1276 else 1277 IWL_DEBUG_EEPROM(mvm->trans->dev, 1278 "working without external nvm file\n"); 1279 1280 scan_size = iwl_mvm_scan_size(mvm); 1281 1282 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1283 if (!mvm->scan_cmd) 1284 goto out_free; 1285 1286 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1287 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1288 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1289 1290 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1291 mvm->last_ebs_successful = true; 1292 1293 min_backoff = iwl_mvm_min_backoff(mvm); 1294 iwl_mvm_thermal_initialize(mvm, min_backoff); 1295 1296 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1297 memset(&mvm->rx_stats_v3, 0, 1298 sizeof(struct mvm_statistics_rx_v3)); 1299 else 1300 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1301 1302 mvm->debugfs_dir = dbgfs_dir; 1303 1304 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1305 1306 if (iwl_mvm_start_get_nvm(mvm)) { 1307 /* 1308 * Getting NVM failed while CSME is the owner, but we are 1309 * registered to MEI, we'll get the NVM later when it'll be 1310 * possible to get it from CSME. 1311 */ 1312 if (trans->csme_own && mvm->mei_registered) 1313 return op_mode; 1314 1315 goto out_thermal_exit; 1316 } 1317 1318 1319 if (iwl_mvm_start_post_nvm(mvm)) 1320 goto out_thermal_exit; 1321 1322 return op_mode; 1323 1324 out_thermal_exit: 1325 iwl_mvm_thermal_exit(mvm); 1326 if (mvm->mei_registered) { 1327 iwl_mei_start_unregister(); 1328 iwl_mei_unregister_complete(); 1329 } 1330 out_free: 1331 iwl_fw_flush_dumps(&mvm->fwrt); 1332 iwl_fw_runtime_free(&mvm->fwrt); 1333 1334 if (iwlmvm_mod_params.init_dbg) 1335 return op_mode; 1336 iwl_phy_db_free(mvm->phy_db); 1337 kfree(mvm->scan_cmd); 1338 iwl_trans_op_mode_leave(trans); 1339 1340 ieee80211_free_hw(mvm->hw); 1341 return NULL; 1342 } 1343 1344 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1345 { 1346 lockdep_assert_held(&mvm->mutex); 1347 1348 iwl_fw_cancel_timestamp(&mvm->fwrt); 1349 1350 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1351 1352 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1353 iwl_trans_stop_device(mvm->trans); 1354 iwl_free_fw_paging(&mvm->fwrt); 1355 iwl_fw_dump_conf_clear(&mvm->fwrt); 1356 iwl_mvm_mei_device_down(mvm); 1357 } 1358 1359 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1360 { 1361 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1362 int i; 1363 1364 if (mvm->mei_registered) { 1365 rtnl_lock(); 1366 iwl_mei_set_netdev(NULL); 1367 rtnl_unlock(); 1368 iwl_mei_start_unregister(); 1369 } 1370 1371 /* 1372 * After we unregister from mei, the worker can't be scheduled 1373 * anymore. 1374 */ 1375 cancel_work_sync(&mvm->sap_connected_wk); 1376 1377 iwl_mvm_leds_exit(mvm); 1378 1379 iwl_mvm_thermal_exit(mvm); 1380 1381 /* 1382 * If we couldn't get ownership on the device and we couldn't 1383 * get the NVM from CSME, we haven't registered to mac80211. 1384 * In that case, we didn't fail op_mode_start, because we are 1385 * waiting for CSME to allow us to get the NVM to register to 1386 * mac80211. If that didn't happen, we haven't registered to 1387 * mac80211, hence the if below. 1388 */ 1389 if (mvm->hw_registered) 1390 ieee80211_unregister_hw(mvm->hw); 1391 1392 kfree(mvm->scan_cmd); 1393 kfree(mvm->mcast_filter_cmd); 1394 mvm->mcast_filter_cmd = NULL; 1395 1396 kfree(mvm->error_recovery_buf); 1397 mvm->error_recovery_buf = NULL; 1398 1399 iwl_trans_op_mode_leave(mvm->trans); 1400 1401 iwl_phy_db_free(mvm->phy_db); 1402 mvm->phy_db = NULL; 1403 1404 kfree(mvm->nvm_data); 1405 kfree(mvm->mei_nvm_data); 1406 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1407 kfree(mvm->temp_nvm_data); 1408 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1409 kfree(mvm->nvm_sections[i].data); 1410 1411 cancel_delayed_work_sync(&mvm->tcm.work); 1412 1413 iwl_fw_runtime_free(&mvm->fwrt); 1414 mutex_destroy(&mvm->mutex); 1415 1416 if (mvm->mei_registered) 1417 iwl_mei_unregister_complete(); 1418 1419 ieee80211_free_hw(mvm->hw); 1420 } 1421 1422 struct iwl_async_handler_entry { 1423 struct list_head list; 1424 struct iwl_rx_cmd_buffer rxb; 1425 enum iwl_rx_handler_context context; 1426 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1427 }; 1428 1429 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1430 { 1431 struct iwl_async_handler_entry *entry, *tmp; 1432 1433 spin_lock_bh(&mvm->async_handlers_lock); 1434 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1435 iwl_free_rxb(&entry->rxb); 1436 list_del(&entry->list); 1437 kfree(entry); 1438 } 1439 spin_unlock_bh(&mvm->async_handlers_lock); 1440 } 1441 1442 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1443 { 1444 struct iwl_mvm *mvm = 1445 container_of(wk, struct iwl_mvm, async_handlers_wk); 1446 struct iwl_async_handler_entry *entry, *tmp; 1447 LIST_HEAD(local_list); 1448 1449 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1450 1451 /* 1452 * Sync with Rx path with a lock. Remove all the entries from this list, 1453 * add them to a local one (lock free), and then handle them. 1454 */ 1455 spin_lock_bh(&mvm->async_handlers_lock); 1456 list_splice_init(&mvm->async_handlers_list, &local_list); 1457 spin_unlock_bh(&mvm->async_handlers_lock); 1458 1459 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1460 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1461 mutex_lock(&mvm->mutex); 1462 entry->fn(mvm, &entry->rxb); 1463 iwl_free_rxb(&entry->rxb); 1464 list_del(&entry->list); 1465 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1466 mutex_unlock(&mvm->mutex); 1467 kfree(entry); 1468 } 1469 } 1470 1471 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1472 struct iwl_rx_packet *pkt) 1473 { 1474 struct iwl_fw_dbg_trigger_tlv *trig; 1475 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1476 int i; 1477 1478 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1479 FW_DBG_TRIGGER_FW_NOTIF); 1480 if (!trig) 1481 return; 1482 1483 cmds_trig = (void *)trig->data; 1484 1485 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1486 /* don't collect on CMD 0 */ 1487 if (!cmds_trig->cmds[i].cmd_id) 1488 break; 1489 1490 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1491 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1492 continue; 1493 1494 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1495 "CMD 0x%02x.%02x received", 1496 pkt->hdr.group_id, pkt->hdr.cmd); 1497 break; 1498 } 1499 } 1500 1501 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1502 struct iwl_rx_cmd_buffer *rxb, 1503 struct iwl_rx_packet *pkt) 1504 { 1505 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1506 int i; 1507 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1508 1509 iwl_dbg_tlv_time_point(&mvm->fwrt, 1510 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1511 iwl_mvm_rx_check_trigger(mvm, pkt); 1512 1513 /* 1514 * Do the notification wait before RX handlers so 1515 * even if the RX handler consumes the RXB we have 1516 * access to it in the notification wait entry. 1517 */ 1518 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1519 1520 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1521 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1522 struct iwl_async_handler_entry *entry; 1523 1524 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1525 continue; 1526 1527 if (unlikely(pkt_len < rx_h->min_size)) 1528 return; 1529 1530 if (rx_h->context == RX_HANDLER_SYNC) { 1531 rx_h->fn(mvm, rxb); 1532 return; 1533 } 1534 1535 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1536 /* we can't do much... */ 1537 if (!entry) 1538 return; 1539 1540 entry->rxb._page = rxb_steal_page(rxb); 1541 entry->rxb._offset = rxb->_offset; 1542 entry->rxb._rx_page_order = rxb->_rx_page_order; 1543 entry->fn = rx_h->fn; 1544 entry->context = rx_h->context; 1545 spin_lock(&mvm->async_handlers_lock); 1546 list_add_tail(&entry->list, &mvm->async_handlers_list); 1547 spin_unlock(&mvm->async_handlers_lock); 1548 schedule_work(&mvm->async_handlers_wk); 1549 break; 1550 } 1551 } 1552 1553 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1554 struct napi_struct *napi, 1555 struct iwl_rx_cmd_buffer *rxb) 1556 { 1557 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1558 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1559 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1560 1561 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1562 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1563 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1564 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1565 else 1566 iwl_mvm_rx_common(mvm, rxb, pkt); 1567 } 1568 1569 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1570 struct napi_struct *napi, 1571 struct iwl_rx_cmd_buffer *rxb) 1572 { 1573 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1574 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1575 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1576 1577 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1578 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1579 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1580 RX_QUEUES_NOTIFICATION))) 1581 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1582 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1583 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1584 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1585 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1586 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1587 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1588 else 1589 iwl_mvm_rx_common(mvm, rxb, pkt); 1590 } 1591 1592 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1593 const struct iwl_device_cmd *cmd) 1594 { 1595 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1596 1597 /* 1598 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1599 * commands that need to block the Tx queues. 1600 */ 1601 iwl_trans_block_txq_ptrs(mvm->trans, false); 1602 } 1603 1604 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1605 { 1606 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1607 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1608 } 1609 1610 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1611 int hw_queue, bool start) 1612 { 1613 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1614 struct ieee80211_sta *sta; 1615 struct ieee80211_txq *txq; 1616 struct iwl_mvm_txq *mvmtxq; 1617 int i; 1618 unsigned long tid_bitmap; 1619 struct iwl_mvm_sta *mvmsta; 1620 u8 sta_id; 1621 1622 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1623 mvm->tvqm_info[hw_queue].sta_id : 1624 mvm->queue_info[hw_queue].ra_sta_id; 1625 1626 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1627 return; 1628 1629 rcu_read_lock(); 1630 1631 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1632 if (IS_ERR_OR_NULL(sta)) 1633 goto out; 1634 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1635 1636 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1637 if (!start) 1638 ieee80211_stop_queues(mvm->hw); 1639 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1640 ieee80211_wake_queues(mvm->hw); 1641 1642 goto out; 1643 } 1644 1645 if (iwl_mvm_has_new_tx_api(mvm)) { 1646 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1647 1648 tid_bitmap = BIT(tid); 1649 } else { 1650 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1651 } 1652 1653 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1654 int tid = i; 1655 1656 if (tid == IWL_MAX_TID_COUNT) 1657 tid = IEEE80211_NUM_TIDS; 1658 1659 txq = sta->txq[tid]; 1660 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1661 mvmtxq->stopped = !start; 1662 1663 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1664 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1665 } 1666 1667 out: 1668 rcu_read_unlock(); 1669 } 1670 1671 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1672 { 1673 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1674 } 1675 1676 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1677 { 1678 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1679 } 1680 1681 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1682 { 1683 bool state = iwl_mvm_is_radio_killed(mvm); 1684 1685 if (state) 1686 wake_up(&mvm->rx_sync_waitq); 1687 1688 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1689 } 1690 1691 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1692 { 1693 if (state) 1694 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1695 else 1696 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1697 1698 iwl_mvm_set_rfkill_state(mvm); 1699 } 1700 1701 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1702 { 1703 return rcu_dereference_protected(mvm->csme_conn_info, 1704 lockdep_is_held(&mvm->mutex)); 1705 } 1706 1707 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1708 { 1709 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1710 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1711 bool unified = iwl_mvm_has_unified_ucode(mvm); 1712 1713 if (state) 1714 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1715 else 1716 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1717 1718 iwl_mvm_set_rfkill_state(mvm); 1719 1720 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1721 if (rfkill_safe_init_done) 1722 iwl_abort_notification_waits(&mvm->notif_wait); 1723 1724 /* 1725 * Don't ask the transport to stop the firmware. We'll do it 1726 * after cfg80211 takes us down. 1727 */ 1728 if (unified) 1729 return false; 1730 1731 /* 1732 * Stop the device if we run OPERATIONAL firmware or if we are in the 1733 * middle of the calibrations. 1734 */ 1735 return state && rfkill_safe_init_done; 1736 } 1737 1738 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1739 { 1740 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1741 struct ieee80211_tx_info *info; 1742 1743 info = IEEE80211_SKB_CB(skb); 1744 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1745 ieee80211_free_txskb(mvm->hw, skb); 1746 } 1747 1748 struct iwl_mvm_reprobe { 1749 struct device *dev; 1750 struct work_struct work; 1751 }; 1752 1753 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1754 { 1755 struct iwl_mvm_reprobe *reprobe; 1756 1757 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1758 if (device_reprobe(reprobe->dev)) 1759 dev_err(reprobe->dev, "reprobe failed!\n"); 1760 put_device(reprobe->dev); 1761 kfree(reprobe); 1762 module_put(THIS_MODULE); 1763 } 1764 1765 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1766 { 1767 iwl_abort_notification_waits(&mvm->notif_wait); 1768 iwl_dbg_tlv_del_timers(mvm->trans); 1769 1770 /* 1771 * This is a bit racy, but worst case we tell mac80211 about 1772 * a stopped/aborted scan when that was already done which 1773 * is not a problem. It is necessary to abort any os scan 1774 * here because mac80211 requires having the scan cleared 1775 * before restarting. 1776 * We'll reset the scan_status to NONE in restart cleanup in 1777 * the next start() call from mac80211. If restart isn't called 1778 * (no fw restart) scan status will stay busy. 1779 */ 1780 iwl_mvm_report_scan_aborted(mvm); 1781 1782 /* 1783 * If we're restarting already, don't cycle restarts. 1784 * If INIT fw asserted, it will likely fail again. 1785 * If WoWLAN fw asserted, don't restart either, mac80211 1786 * can't recover this since we're already half suspended. 1787 */ 1788 if (!mvm->fw_restart && fw_error) { 1789 iwl_fw_error_collect(&mvm->fwrt, false); 1790 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1791 &mvm->status)) { 1792 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1793 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1794 struct iwl_mvm_reprobe *reprobe; 1795 1796 IWL_ERR(mvm, 1797 "Firmware error during reconfiguration - reprobe!\n"); 1798 1799 /* 1800 * get a module reference to avoid doing this while unloading 1801 * anyway and to avoid scheduling a work with code that's 1802 * being removed. 1803 */ 1804 if (!try_module_get(THIS_MODULE)) { 1805 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1806 return; 1807 } 1808 1809 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1810 if (!reprobe) { 1811 module_put(THIS_MODULE); 1812 return; 1813 } 1814 reprobe->dev = get_device(mvm->trans->dev); 1815 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1816 schedule_work(&reprobe->work); 1817 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1818 &mvm->status)) { 1819 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1820 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1821 mvm->hw_registered && 1822 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1823 /* This should be first thing before trying to collect any 1824 * data to avoid endless loops if any HW error happens while 1825 * collecting debug data. 1826 */ 1827 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1828 1829 if (mvm->fw->ucode_capa.error_log_size) { 1830 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1831 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1832 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1833 1834 if (recover_buf) { 1835 mvm->error_recovery_buf = recover_buf; 1836 iwl_trans_read_mem_bytes(mvm->trans, 1837 src_addr, 1838 recover_buf, 1839 src_size); 1840 } 1841 } 1842 1843 iwl_fw_error_collect(&mvm->fwrt, false); 1844 1845 if (fw_error && mvm->fw_restart > 0) { 1846 mvm->fw_restart--; 1847 ieee80211_restart_hw(mvm->hw); 1848 } else if (mvm->fwrt.trans->dbg.restart_required) { 1849 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1850 mvm->fwrt.trans->dbg.restart_required = FALSE; 1851 ieee80211_restart_hw(mvm->hw); 1852 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1853 ieee80211_restart_hw(mvm->hw); 1854 } 1855 } 1856 } 1857 1858 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1859 { 1860 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1861 1862 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1863 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1864 &mvm->status)) 1865 iwl_mvm_dump_nic_error_log(mvm); 1866 1867 if (sync) { 1868 iwl_fw_error_collect(&mvm->fwrt, true); 1869 /* 1870 * Currently, the only case for sync=true is during 1871 * shutdown, so just stop in this case. If/when that 1872 * changes, we need to be a bit smarter here. 1873 */ 1874 return; 1875 } 1876 1877 /* 1878 * If the firmware crashes while we're already considering it 1879 * to be dead then don't ask for a restart, that cannot do 1880 * anything useful anyway. 1881 */ 1882 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1883 return; 1884 1885 iwl_mvm_nic_restart(mvm, false); 1886 } 1887 1888 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1889 { 1890 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1891 1892 WARN_ON(1); 1893 iwl_mvm_nic_restart(mvm, true); 1894 } 1895 1896 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1897 enum iwl_fw_ini_time_point tp_id, 1898 union iwl_dbg_tlv_tp_data *tp_data) 1899 { 1900 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1901 1902 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1903 } 1904 1905 #define IWL_MVM_COMMON_OPS \ 1906 /* these could be differentiated */ \ 1907 .async_cb = iwl_mvm_async_cb, \ 1908 .queue_full = iwl_mvm_stop_sw_queue, \ 1909 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1910 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1911 .free_skb = iwl_mvm_free_skb, \ 1912 .nic_error = iwl_mvm_nic_error, \ 1913 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1914 .nic_config = iwl_mvm_nic_config, \ 1915 /* as we only register one, these MUST be common! */ \ 1916 .start = iwl_op_mode_mvm_start, \ 1917 .stop = iwl_op_mode_mvm_stop, \ 1918 .time_point = iwl_op_mode_mvm_time_point 1919 1920 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1921 IWL_MVM_COMMON_OPS, 1922 .rx = iwl_mvm_rx, 1923 }; 1924 1925 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1926 struct napi_struct *napi, 1927 struct iwl_rx_cmd_buffer *rxb, 1928 unsigned int queue) 1929 { 1930 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1931 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1932 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1933 1934 if (unlikely(queue >= mvm->trans->num_rx_queues)) 1935 return; 1936 1937 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1938 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1939 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1940 RX_QUEUES_NOTIFICATION))) 1941 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1942 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1943 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1944 } 1945 1946 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1947 IWL_MVM_COMMON_OPS, 1948 .rx = iwl_mvm_rx_mq, 1949 .rx_rss = iwl_mvm_rx_mq_rss, 1950 }; 1951