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