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 /** 150 * enum iwl_rx_handler_context context for Rx handler 151 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 152 * which can't acquire mvm->mutex. 153 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 154 * (and only in this case!), it should be set as ASYNC. In that case, 155 * it will be called from a worker with mvm->mutex held. 156 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 157 * mutex itself, it will be called from a worker without mvm->mutex held. 158 */ 159 enum iwl_rx_handler_context { 160 RX_HANDLER_SYNC, 161 RX_HANDLER_ASYNC_LOCKED, 162 RX_HANDLER_ASYNC_UNLOCKED, 163 }; 164 165 /** 166 * struct iwl_rx_handlers handler for FW notification 167 * @cmd_id: command id 168 * @context: see &iwl_rx_handler_context 169 * @fn: the function is called when notification is received 170 */ 171 struct iwl_rx_handlers { 172 u16 cmd_id; 173 enum iwl_rx_handler_context context; 174 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 175 }; 176 177 #define RX_HANDLER(_cmd_id, _fn, _context) \ 178 { .cmd_id = _cmd_id, .fn = _fn, .context = _context } 179 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context) \ 180 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context } 181 182 /* 183 * Handlers for fw notifications 184 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 185 * This list should be in order of frequency for performance purposes. 186 * 187 * The handler can be one from three contexts, see &iwl_rx_handler_context 188 */ 189 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 190 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC), 191 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC), 192 193 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 194 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC), 195 196 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 197 RX_HANDLER_ASYNC_LOCKED), 198 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 199 RX_HANDLER_ASYNC_LOCKED), 200 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 201 RX_HANDLER_ASYNC_LOCKED), 202 203 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 204 iwl_mvm_window_status_notif, RX_HANDLER_SYNC), 205 206 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 207 RX_HANDLER_SYNC), 208 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 209 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC), 210 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 211 RX_HANDLER_ASYNC_LOCKED), 212 213 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC), 214 215 RX_HANDLER(SCAN_ITERATION_COMPLETE, 216 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC), 217 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 218 iwl_mvm_rx_lmac_scan_complete_notif, 219 RX_HANDLER_ASYNC_LOCKED), 220 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, 221 RX_HANDLER_SYNC), 222 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 223 RX_HANDLER_ASYNC_LOCKED), 224 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 225 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC), 226 227 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, 228 RX_HANDLER_SYNC), 229 230 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 231 RX_HANDLER_SYNC), 232 233 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC), 234 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 235 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC), 236 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 237 RX_HANDLER_ASYNC_LOCKED), 238 RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 239 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 240 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 241 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC), 242 243 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 244 RX_HANDLER_ASYNC_LOCKED), 245 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 246 RX_HANDLER_SYNC), 247 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 248 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED), 249 250 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 251 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 252 RX_HANDLER_GRP(LOCATION_GROUP, TOF_LC_NOTIF, 253 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 254 255 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 256 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC), 257 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 258 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC), 259 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 260 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC), 261 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 262 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC), 263 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 264 iwl_mvm_probe_resp_data_notif, 265 RX_HANDLER_ASYNC_LOCKED), 266 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_NOA_NOTIF, 267 iwl_mvm_channel_switch_noa_notif, 268 RX_HANDLER_SYNC), 269 }; 270 #undef RX_HANDLER 271 #undef RX_HANDLER_GRP 272 273 /* Please keep this array *SORTED* by hex value. 274 * Access is done through binary search 275 */ 276 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 277 HCMD_NAME(UCODE_ALIVE_NTFY), 278 HCMD_NAME(REPLY_ERROR), 279 HCMD_NAME(ECHO_CMD), 280 HCMD_NAME(INIT_COMPLETE_NOTIF), 281 HCMD_NAME(PHY_CONTEXT_CMD), 282 HCMD_NAME(DBG_CFG), 283 HCMD_NAME(SCAN_CFG_CMD), 284 HCMD_NAME(SCAN_REQ_UMAC), 285 HCMD_NAME(SCAN_ABORT_UMAC), 286 HCMD_NAME(SCAN_COMPLETE_UMAC), 287 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 288 HCMD_NAME(ADD_STA_KEY), 289 HCMD_NAME(ADD_STA), 290 HCMD_NAME(REMOVE_STA), 291 HCMD_NAME(FW_GET_ITEM_CMD), 292 HCMD_NAME(TX_CMD), 293 HCMD_NAME(SCD_QUEUE_CFG), 294 HCMD_NAME(TXPATH_FLUSH), 295 HCMD_NAME(MGMT_MCAST_KEY), 296 HCMD_NAME(WEP_KEY), 297 HCMD_NAME(SHARED_MEM_CFG), 298 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 299 HCMD_NAME(MAC_CONTEXT_CMD), 300 HCMD_NAME(TIME_EVENT_CMD), 301 HCMD_NAME(TIME_EVENT_NOTIFICATION), 302 HCMD_NAME(BINDING_CONTEXT_CMD), 303 HCMD_NAME(TIME_QUOTA_CMD), 304 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 305 HCMD_NAME(LEDS_CMD), 306 HCMD_NAME(LQ_CMD), 307 HCMD_NAME(FW_PAGING_BLOCK_CMD), 308 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 309 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 310 HCMD_NAME(HOT_SPOT_CMD), 311 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 312 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 313 HCMD_NAME(BT_COEX_CI), 314 HCMD_NAME(PHY_CONFIGURATION_CMD), 315 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 316 HCMD_NAME(PHY_DB_CMD), 317 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 318 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 319 HCMD_NAME(POWER_TABLE_CMD), 320 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 321 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 322 HCMD_NAME(DC2DC_CONFIG_CMD), 323 HCMD_NAME(NVM_ACCESS_CMD), 324 HCMD_NAME(BEACON_NOTIFICATION), 325 HCMD_NAME(BEACON_TEMPLATE_CMD), 326 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 327 HCMD_NAME(BT_CONFIG), 328 HCMD_NAME(STATISTICS_CMD), 329 HCMD_NAME(STATISTICS_NOTIFICATION), 330 HCMD_NAME(EOSP_NOTIFICATION), 331 HCMD_NAME(REDUCE_TX_POWER_CMD), 332 HCMD_NAME(CARD_STATE_NOTIFICATION), 333 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 334 HCMD_NAME(TDLS_CONFIG_CMD), 335 HCMD_NAME(MAC_PM_POWER_TABLE), 336 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 337 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 338 HCMD_NAME(RSS_CONFIG_CMD), 339 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 340 HCMD_NAME(REPLY_RX_PHY_CMD), 341 HCMD_NAME(REPLY_RX_MPDU_CMD), 342 HCMD_NAME(BAR_FRAME_RELEASE), 343 HCMD_NAME(FRAME_RELEASE), 344 HCMD_NAME(BA_NOTIF), 345 HCMD_NAME(MCC_UPDATE_CMD), 346 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 347 HCMD_NAME(MARKER_CMD), 348 HCMD_NAME(BT_PROFILE_NOTIFICATION), 349 HCMD_NAME(BCAST_FILTER_CMD), 350 HCMD_NAME(MCAST_FILTER_CMD), 351 HCMD_NAME(REPLY_SF_CFG_CMD), 352 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 353 HCMD_NAME(D3_CONFIG_CMD), 354 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 355 HCMD_NAME(OFFLOADS_QUERY_CMD), 356 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD), 357 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 358 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 359 HCMD_NAME(WOWLAN_PATTERNS), 360 HCMD_NAME(WOWLAN_CONFIGURATION), 361 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 362 HCMD_NAME(WOWLAN_TKIP_PARAM), 363 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 364 HCMD_NAME(WOWLAN_GET_STATUSES), 365 HCMD_NAME(SCAN_ITERATION_COMPLETE), 366 HCMD_NAME(D0I3_END_CMD), 367 HCMD_NAME(LTR_CONFIG), 368 HCMD_NAME(LDBG_CONFIG_CMD), 369 }; 370 371 /* Please keep this array *SORTED* by hex value. 372 * Access is done through binary search 373 */ 374 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 375 HCMD_NAME(SHARED_MEM_CFG_CMD), 376 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 377 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 378 }; 379 380 /* Please keep this array *SORTED* by hex value. 381 * Access is done through binary search 382 */ 383 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 384 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 385 HCMD_NAME(SESSION_PROTECTION_CMD), 386 HCMD_NAME(SESSION_PROTECTION_NOTIF), 387 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF), 388 }; 389 390 /* Please keep this array *SORTED* by hex value. 391 * Access is done through binary search 392 */ 393 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 394 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 395 HCMD_NAME(CTDP_CONFIG_CMD), 396 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 397 HCMD_NAME(GEO_TX_POWER_LIMIT), 398 HCMD_NAME(CT_KILL_NOTIFICATION), 399 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 400 }; 401 402 /* Please keep this array *SORTED* by hex value. 403 * Access is done through binary search 404 */ 405 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 406 HCMD_NAME(DQA_ENABLE_CMD), 407 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 408 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 409 HCMD_NAME(STA_HE_CTXT_CMD), 410 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 411 HCMD_NAME(TLC_MNG_CONFIG_CMD), 412 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 413 HCMD_NAME(STA_PM_NOTIF), 414 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 415 HCMD_NAME(RX_QUEUES_NOTIFICATION), 416 }; 417 418 /* Please keep this array *SORTED* by hex value. 419 * Access is done through binary search 420 */ 421 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 422 HCMD_NAME(TOF_RANGE_REQ_CMD), 423 HCMD_NAME(TOF_CONFIG_CMD), 424 HCMD_NAME(TOF_RANGE_ABORT_CMD), 425 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 426 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 427 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 428 HCMD_NAME(TOF_LC_NOTIF), 429 HCMD_NAME(TOF_RESPONDER_STATS), 430 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 431 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 432 }; 433 434 /* Please keep this array *SORTED* by hex value. 435 * Access is done through binary search 436 */ 437 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 438 HCMD_NAME(STORED_BEACON_NTF), 439 }; 440 441 /* Please keep this array *SORTED* by hex value. 442 * Access is done through binary search 443 */ 444 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 445 HCMD_NAME(NVM_ACCESS_COMPLETE), 446 HCMD_NAME(NVM_GET_INFO), 447 HCMD_NAME(TAS_CONFIG), 448 }; 449 450 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 451 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 452 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 453 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 454 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 455 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 456 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 457 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 458 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 459 [REGULATORY_AND_NVM_GROUP] = 460 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 461 }; 462 463 /* this forward declaration can avoid to export the function */ 464 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 465 466 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 467 { 468 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 469 u64 dflt_pwr_limit; 470 471 if (!backoff) 472 return 0; 473 474 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 475 476 while (backoff->pwr) { 477 if (dflt_pwr_limit >= backoff->pwr) 478 return backoff->backoff; 479 480 backoff++; 481 } 482 483 return 0; 484 } 485 486 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 487 { 488 struct iwl_mvm *mvm = 489 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 490 struct ieee80211_vif *tx_blocked_vif; 491 struct iwl_mvm_vif *mvmvif; 492 493 mutex_lock(&mvm->mutex); 494 495 tx_blocked_vif = 496 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 497 lockdep_is_held(&mvm->mutex)); 498 499 if (!tx_blocked_vif) 500 goto unlock; 501 502 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 503 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 504 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 505 unlock: 506 mutex_unlock(&mvm->mutex); 507 } 508 509 static int iwl_mvm_fwrt_dump_start(void *ctx) 510 { 511 struct iwl_mvm *mvm = ctx; 512 513 mutex_lock(&mvm->mutex); 514 515 return 0; 516 } 517 518 static void iwl_mvm_fwrt_dump_end(void *ctx) 519 { 520 struct iwl_mvm *mvm = ctx; 521 522 mutex_unlock(&mvm->mutex); 523 } 524 525 static bool iwl_mvm_fwrt_fw_running(void *ctx) 526 { 527 return iwl_mvm_firmware_running(ctx); 528 } 529 530 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 531 { 532 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 533 int ret; 534 535 mutex_lock(&mvm->mutex); 536 ret = iwl_mvm_send_cmd(mvm, host_cmd); 537 mutex_unlock(&mvm->mutex); 538 539 return ret; 540 } 541 542 static bool iwl_mvm_d3_debug_enable(void *ctx) 543 { 544 return IWL_MVM_D3_DEBUG; 545 } 546 547 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 548 .dump_start = iwl_mvm_fwrt_dump_start, 549 .dump_end = iwl_mvm_fwrt_dump_end, 550 .fw_running = iwl_mvm_fwrt_fw_running, 551 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 552 .d3_debug_enable = iwl_mvm_d3_debug_enable, 553 }; 554 555 static struct iwl_op_mode * 556 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 557 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 558 { 559 struct ieee80211_hw *hw; 560 struct iwl_op_mode *op_mode; 561 struct iwl_mvm *mvm; 562 struct iwl_trans_config trans_cfg = {}; 563 static const u8 no_reclaim_cmds[] = { 564 TX_CMD, 565 }; 566 int err, scan_size; 567 u32 min_backoff; 568 enum iwl_amsdu_size rb_size_default; 569 570 /* 571 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 572 * index all over the driver - check that its value corresponds to the 573 * array size. 574 */ 575 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 576 IWL_MVM_STATION_COUNT_MAX); 577 578 /******************************** 579 * 1. Allocating and configuring HW data 580 ********************************/ 581 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 582 sizeof(struct iwl_mvm), 583 &iwl_mvm_hw_ops); 584 if (!hw) 585 return NULL; 586 587 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 588 589 if (cfg->max_tx_agg_size) 590 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 591 else 592 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; 593 594 op_mode = hw->priv; 595 596 mvm = IWL_OP_MODE_GET_MVM(op_mode); 597 mvm->dev = trans->dev; 598 mvm->trans = trans; 599 mvm->cfg = cfg; 600 mvm->fw = fw; 601 mvm->hw = hw; 602 603 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 604 dbgfs_dir); 605 606 mvm->init_status = 0; 607 608 if (iwl_mvm_has_new_rx_api(mvm)) { 609 op_mode->ops = &iwl_mvm_ops_mq; 610 trans->rx_mpdu_cmd_hdr_size = 611 (trans->trans_cfg->device_family >= 612 IWL_DEVICE_FAMILY_AX210) ? 613 sizeof(struct iwl_rx_mpdu_desc) : 614 IWL_RX_DESC_SIZE_V1; 615 } else { 616 op_mode->ops = &iwl_mvm_ops; 617 trans->rx_mpdu_cmd_hdr_size = 618 sizeof(struct iwl_rx_mpdu_res_start); 619 620 if (WARN_ON(trans->num_rx_queues > 1)) 621 goto out_free; 622 } 623 624 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 625 626 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 627 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 628 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 629 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 630 631 mvm->sf_state = SF_UNINIT; 632 if (iwl_mvm_has_unified_ucode(mvm)) 633 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 634 else 635 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 636 mvm->drop_bcn_ap_mode = true; 637 638 mutex_init(&mvm->mutex); 639 spin_lock_init(&mvm->async_handlers_lock); 640 INIT_LIST_HEAD(&mvm->time_event_list); 641 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 642 INIT_LIST_HEAD(&mvm->async_handlers_list); 643 spin_lock_init(&mvm->time_event_lock); 644 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 645 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 646 INIT_LIST_HEAD(&mvm->resp_pasn_list); 647 648 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 649 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 650 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 651 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 652 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 653 INIT_LIST_HEAD(&mvm->add_stream_txqs); 654 655 init_waitqueue_head(&mvm->rx_sync_waitq); 656 657 mvm->queue_sync_state = 0; 658 659 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 660 661 spin_lock_init(&mvm->tcm.lock); 662 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 663 mvm->tcm.ts = jiffies; 664 mvm->tcm.ll_ts = jiffies; 665 mvm->tcm.uapsd_nonagg_ts = jiffies; 666 667 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 668 669 mvm->cmd_ver.d0i3_resp = 670 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 671 0); 672 /* we only support version 1 */ 673 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 674 goto out_free; 675 676 mvm->cmd_ver.range_resp = 677 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 678 TOF_RANGE_RESPONSE_NOTIF, 5); 679 /* we only support up to version 8 */ 680 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 8)) 681 goto out_free; 682 683 /* 684 * Populate the state variables that the transport layer needs 685 * to know about. 686 */ 687 trans_cfg.op_mode = op_mode; 688 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 689 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 690 691 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) 692 rb_size_default = IWL_AMSDU_2K; 693 else 694 rb_size_default = IWL_AMSDU_4K; 695 696 switch (iwlwifi_mod_params.amsdu_size) { 697 case IWL_AMSDU_DEF: 698 trans_cfg.rx_buf_size = rb_size_default; 699 break; 700 case IWL_AMSDU_4K: 701 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 702 break; 703 case IWL_AMSDU_8K: 704 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 705 break; 706 case IWL_AMSDU_12K: 707 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 708 break; 709 default: 710 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 711 iwlwifi_mod_params.amsdu_size); 712 trans_cfg.rx_buf_size = rb_size_default; 713 } 714 715 trans->wide_cmd_header = true; 716 trans_cfg.bc_table_dword = 717 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 718 719 trans_cfg.command_groups = iwl_mvm_groups; 720 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 721 722 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 723 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 724 trans_cfg.scd_set_active = true; 725 726 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 727 driver_data[2]); 728 729 /* Set a short watchdog for the command queue */ 730 trans_cfg.cmd_q_wdg_timeout = 731 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 732 733 snprintf(mvm->hw->wiphy->fw_version, 734 sizeof(mvm->hw->wiphy->fw_version), 735 "%s", fw->fw_version); 736 737 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 738 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 739 740 /* Configure transport layer */ 741 iwl_trans_configure(mvm->trans, &trans_cfg); 742 743 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 744 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 745 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 746 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 747 sizeof(trans->dbg.conf_tlv)); 748 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 749 750 trans->iml = mvm->fw->iml; 751 trans->iml_len = mvm->fw->iml_len; 752 753 /* set up notification wait support */ 754 iwl_notification_wait_init(&mvm->notif_wait); 755 756 /* Init phy db */ 757 mvm->phy_db = iwl_phy_db_init(trans); 758 if (!mvm->phy_db) { 759 IWL_ERR(mvm, "Cannot init phy_db\n"); 760 goto out_free; 761 } 762 763 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 764 mvm->trans->name, mvm->trans->hw_rev); 765 766 if (iwlwifi_mod_params.nvm_file) 767 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 768 else 769 IWL_DEBUG_EEPROM(mvm->trans->dev, 770 "working without external nvm file\n"); 771 772 err = iwl_trans_start_hw(mvm->trans); 773 if (err) 774 goto out_free; 775 776 mutex_lock(&mvm->mutex); 777 err = iwl_run_init_mvm_ucode(mvm); 778 if (err && err != -ERFKILL) 779 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 780 if (!iwlmvm_mod_params.init_dbg || !err) 781 iwl_mvm_stop_device(mvm); 782 mutex_unlock(&mvm->mutex); 783 if (err < 0) { 784 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); 785 goto out_free; 786 } 787 788 scan_size = iwl_mvm_scan_size(mvm); 789 790 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 791 if (!mvm->scan_cmd) 792 goto out_free; 793 794 /* Set EBS as successful as long as not stated otherwise by the FW. */ 795 mvm->last_ebs_successful = true; 796 797 err = iwl_mvm_mac_setup_register(mvm); 798 if (err) 799 goto out_free; 800 mvm->hw_registered = true; 801 802 min_backoff = iwl_mvm_min_backoff(mvm); 803 iwl_mvm_thermal_initialize(mvm, min_backoff); 804 805 iwl_mvm_dbgfs_register(mvm, dbgfs_dir); 806 807 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 808 memset(&mvm->rx_stats_v3, 0, 809 sizeof(struct mvm_statistics_rx_v3)); 810 else 811 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 812 813 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 814 815 return op_mode; 816 817 out_free: 818 iwl_fw_flush_dumps(&mvm->fwrt); 819 iwl_fw_runtime_free(&mvm->fwrt); 820 821 if (iwlmvm_mod_params.init_dbg) 822 return op_mode; 823 iwl_phy_db_free(mvm->phy_db); 824 kfree(mvm->scan_cmd); 825 iwl_trans_op_mode_leave(trans); 826 827 ieee80211_free_hw(mvm->hw); 828 return NULL; 829 } 830 831 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 832 { 833 lockdep_assert_held(&mvm->mutex); 834 835 iwl_fw_cancel_timestamp(&mvm->fwrt); 836 837 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 838 839 iwl_fw_dbg_stop_sync(&mvm->fwrt); 840 iwl_trans_stop_device(mvm->trans); 841 iwl_free_fw_paging(&mvm->fwrt); 842 iwl_fw_dump_conf_clear(&mvm->fwrt); 843 } 844 845 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 846 { 847 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 848 int i; 849 850 iwl_mvm_leds_exit(mvm); 851 852 iwl_mvm_thermal_exit(mvm); 853 854 ieee80211_unregister_hw(mvm->hw); 855 856 kfree(mvm->scan_cmd); 857 kfree(mvm->mcast_filter_cmd); 858 mvm->mcast_filter_cmd = NULL; 859 860 kfree(mvm->error_recovery_buf); 861 mvm->error_recovery_buf = NULL; 862 863 iwl_trans_op_mode_leave(mvm->trans); 864 865 iwl_phy_db_free(mvm->phy_db); 866 mvm->phy_db = NULL; 867 868 kfree(mvm->nvm_data); 869 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 870 kfree(mvm->nvm_sections[i].data); 871 872 cancel_delayed_work_sync(&mvm->tcm.work); 873 874 iwl_fw_runtime_free(&mvm->fwrt); 875 mutex_destroy(&mvm->mutex); 876 877 ieee80211_free_hw(mvm->hw); 878 } 879 880 struct iwl_async_handler_entry { 881 struct list_head list; 882 struct iwl_rx_cmd_buffer rxb; 883 enum iwl_rx_handler_context context; 884 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 885 }; 886 887 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 888 { 889 struct iwl_async_handler_entry *entry, *tmp; 890 891 spin_lock_bh(&mvm->async_handlers_lock); 892 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 893 iwl_free_rxb(&entry->rxb); 894 list_del(&entry->list); 895 kfree(entry); 896 } 897 spin_unlock_bh(&mvm->async_handlers_lock); 898 } 899 900 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 901 { 902 struct iwl_mvm *mvm = 903 container_of(wk, struct iwl_mvm, async_handlers_wk); 904 struct iwl_async_handler_entry *entry, *tmp; 905 LIST_HEAD(local_list); 906 907 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 908 909 /* 910 * Sync with Rx path with a lock. Remove all the entries from this list, 911 * add them to a local one (lock free), and then handle them. 912 */ 913 spin_lock_bh(&mvm->async_handlers_lock); 914 list_splice_init(&mvm->async_handlers_list, &local_list); 915 spin_unlock_bh(&mvm->async_handlers_lock); 916 917 list_for_each_entry_safe(entry, tmp, &local_list, list) { 918 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 919 mutex_lock(&mvm->mutex); 920 entry->fn(mvm, &entry->rxb); 921 iwl_free_rxb(&entry->rxb); 922 list_del(&entry->list); 923 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 924 mutex_unlock(&mvm->mutex); 925 kfree(entry); 926 } 927 } 928 929 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 930 struct iwl_rx_packet *pkt) 931 { 932 struct iwl_fw_dbg_trigger_tlv *trig; 933 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 934 int i; 935 936 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 937 FW_DBG_TRIGGER_FW_NOTIF); 938 if (!trig) 939 return; 940 941 cmds_trig = (void *)trig->data; 942 943 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 944 /* don't collect on CMD 0 */ 945 if (!cmds_trig->cmds[i].cmd_id) 946 break; 947 948 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 949 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 950 continue; 951 952 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 953 "CMD 0x%02x.%02x received", 954 pkt->hdr.group_id, pkt->hdr.cmd); 955 break; 956 } 957 } 958 959 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 960 struct iwl_rx_cmd_buffer *rxb, 961 struct iwl_rx_packet *pkt) 962 { 963 int i; 964 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 965 966 iwl_dbg_tlv_time_point(&mvm->fwrt, 967 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 968 iwl_mvm_rx_check_trigger(mvm, pkt); 969 970 /* 971 * Do the notification wait before RX handlers so 972 * even if the RX handler consumes the RXB we have 973 * access to it in the notification wait entry. 974 */ 975 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 976 977 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 978 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 979 struct iwl_async_handler_entry *entry; 980 981 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 982 continue; 983 984 if (rx_h->context == RX_HANDLER_SYNC) { 985 rx_h->fn(mvm, rxb); 986 return; 987 } 988 989 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 990 /* we can't do much... */ 991 if (!entry) 992 return; 993 994 entry->rxb._page = rxb_steal_page(rxb); 995 entry->rxb._offset = rxb->_offset; 996 entry->rxb._rx_page_order = rxb->_rx_page_order; 997 entry->fn = rx_h->fn; 998 entry->context = rx_h->context; 999 spin_lock(&mvm->async_handlers_lock); 1000 list_add_tail(&entry->list, &mvm->async_handlers_list); 1001 spin_unlock(&mvm->async_handlers_lock); 1002 schedule_work(&mvm->async_handlers_wk); 1003 break; 1004 } 1005 } 1006 1007 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1008 struct napi_struct *napi, 1009 struct iwl_rx_cmd_buffer *rxb) 1010 { 1011 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1012 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1013 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1014 1015 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1016 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1017 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1018 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1019 else 1020 iwl_mvm_rx_common(mvm, rxb, pkt); 1021 } 1022 1023 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1024 struct napi_struct *napi, 1025 struct iwl_rx_cmd_buffer *rxb) 1026 { 1027 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1028 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1029 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1030 1031 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1032 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1033 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1034 RX_QUEUES_NOTIFICATION))) 1035 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1036 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1037 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1038 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1039 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1040 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1041 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1042 else 1043 iwl_mvm_rx_common(mvm, rxb, pkt); 1044 } 1045 1046 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1047 const struct iwl_device_cmd *cmd) 1048 { 1049 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1050 1051 /* 1052 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1053 * commands that need to block the Tx queues. 1054 */ 1055 iwl_trans_block_txq_ptrs(mvm->trans, false); 1056 } 1057 1058 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1059 { 1060 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1061 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1062 } 1063 1064 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1065 int hw_queue, bool start) 1066 { 1067 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1068 struct ieee80211_sta *sta; 1069 struct ieee80211_txq *txq; 1070 struct iwl_mvm_txq *mvmtxq; 1071 int i; 1072 unsigned long tid_bitmap; 1073 struct iwl_mvm_sta *mvmsta; 1074 u8 sta_id; 1075 1076 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1077 mvm->tvqm_info[hw_queue].sta_id : 1078 mvm->queue_info[hw_queue].ra_sta_id; 1079 1080 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1081 return; 1082 1083 rcu_read_lock(); 1084 1085 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1086 if (IS_ERR_OR_NULL(sta)) 1087 goto out; 1088 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1089 1090 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1091 if (!start) 1092 ieee80211_stop_queues(mvm->hw); 1093 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1094 ieee80211_wake_queues(mvm->hw); 1095 1096 goto out; 1097 } 1098 1099 if (iwl_mvm_has_new_tx_api(mvm)) { 1100 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1101 1102 tid_bitmap = BIT(tid); 1103 } else { 1104 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1105 } 1106 1107 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1108 int tid = i; 1109 1110 if (tid == IWL_MAX_TID_COUNT) 1111 tid = IEEE80211_NUM_TIDS; 1112 1113 txq = sta->txq[tid]; 1114 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1115 mvmtxq->stopped = !start; 1116 1117 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1118 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1119 } 1120 1121 out: 1122 rcu_read_unlock(); 1123 } 1124 1125 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1126 { 1127 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1128 } 1129 1130 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1131 { 1132 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1133 } 1134 1135 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1136 { 1137 bool state = iwl_mvm_is_radio_killed(mvm); 1138 1139 if (state) 1140 wake_up(&mvm->rx_sync_waitq); 1141 1142 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1143 } 1144 1145 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1146 { 1147 if (state) 1148 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1149 else 1150 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1151 1152 iwl_mvm_set_rfkill_state(mvm); 1153 } 1154 1155 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1156 { 1157 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1158 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1159 bool unified = iwl_mvm_has_unified_ucode(mvm); 1160 1161 if (state) 1162 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1163 else 1164 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1165 1166 iwl_mvm_set_rfkill_state(mvm); 1167 1168 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1169 if (rfkill_safe_init_done) 1170 iwl_abort_notification_waits(&mvm->notif_wait); 1171 1172 /* 1173 * Don't ask the transport to stop the firmware. We'll do it 1174 * after cfg80211 takes us down. 1175 */ 1176 if (unified) 1177 return false; 1178 1179 /* 1180 * Stop the device if we run OPERATIONAL firmware or if we are in the 1181 * middle of the calibrations. 1182 */ 1183 return state && rfkill_safe_init_done; 1184 } 1185 1186 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1187 { 1188 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1189 struct ieee80211_tx_info *info; 1190 1191 info = IEEE80211_SKB_CB(skb); 1192 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1193 ieee80211_free_txskb(mvm->hw, skb); 1194 } 1195 1196 struct iwl_mvm_reprobe { 1197 struct device *dev; 1198 struct work_struct work; 1199 }; 1200 1201 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1202 { 1203 struct iwl_mvm_reprobe *reprobe; 1204 1205 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1206 if (device_reprobe(reprobe->dev)) 1207 dev_err(reprobe->dev, "reprobe failed!\n"); 1208 kfree(reprobe); 1209 module_put(THIS_MODULE); 1210 } 1211 1212 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1213 { 1214 iwl_abort_notification_waits(&mvm->notif_wait); 1215 iwl_dbg_tlv_del_timers(mvm->trans); 1216 1217 /* 1218 * This is a bit racy, but worst case we tell mac80211 about 1219 * a stopped/aborted scan when that was already done which 1220 * is not a problem. It is necessary to abort any os scan 1221 * here because mac80211 requires having the scan cleared 1222 * before restarting. 1223 * We'll reset the scan_status to NONE in restart cleanup in 1224 * the next start() call from mac80211. If restart isn't called 1225 * (no fw restart) scan status will stay busy. 1226 */ 1227 iwl_mvm_report_scan_aborted(mvm); 1228 1229 /* 1230 * If we're restarting already, don't cycle restarts. 1231 * If INIT fw asserted, it will likely fail again. 1232 * If WoWLAN fw asserted, don't restart either, mac80211 1233 * can't recover this since we're already half suspended. 1234 */ 1235 if (!mvm->fw_restart && fw_error) { 1236 iwl_fw_error_collect(&mvm->fwrt); 1237 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1238 struct iwl_mvm_reprobe *reprobe; 1239 1240 IWL_ERR(mvm, 1241 "Firmware error during reconfiguration - reprobe!\n"); 1242 1243 /* 1244 * get a module reference to avoid doing this while unloading 1245 * anyway and to avoid scheduling a work with code that's 1246 * being removed. 1247 */ 1248 if (!try_module_get(THIS_MODULE)) { 1249 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1250 return; 1251 } 1252 1253 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1254 if (!reprobe) { 1255 module_put(THIS_MODULE); 1256 return; 1257 } 1258 reprobe->dev = mvm->trans->dev; 1259 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1260 schedule_work(&reprobe->work); 1261 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1262 &mvm->status)) { 1263 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1264 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1265 mvm->hw_registered && 1266 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1267 /* This should be first thing before trying to collect any 1268 * data to avoid endless loops if any HW error happens while 1269 * collecting debug data. 1270 */ 1271 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1272 1273 if (mvm->fw->ucode_capa.error_log_size) { 1274 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1275 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1276 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1277 1278 if (recover_buf) { 1279 mvm->error_recovery_buf = recover_buf; 1280 iwl_trans_read_mem_bytes(mvm->trans, 1281 src_addr, 1282 recover_buf, 1283 src_size); 1284 } 1285 } 1286 1287 iwl_fw_error_collect(&mvm->fwrt); 1288 1289 if (fw_error && mvm->fw_restart > 0) 1290 mvm->fw_restart--; 1291 ieee80211_restart_hw(mvm->hw); 1292 } 1293 } 1294 1295 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) 1296 { 1297 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1298 1299 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) 1300 iwl_mvm_dump_nic_error_log(mvm); 1301 1302 iwl_mvm_nic_restart(mvm, true); 1303 } 1304 1305 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1306 { 1307 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1308 1309 WARN_ON(1); 1310 iwl_mvm_nic_restart(mvm, true); 1311 } 1312 1313 #define IWL_MVM_COMMON_OPS \ 1314 /* these could be differentiated */ \ 1315 .async_cb = iwl_mvm_async_cb, \ 1316 .queue_full = iwl_mvm_stop_sw_queue, \ 1317 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1318 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1319 .free_skb = iwl_mvm_free_skb, \ 1320 .nic_error = iwl_mvm_nic_error, \ 1321 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1322 .nic_config = iwl_mvm_nic_config, \ 1323 /* as we only register one, these MUST be common! */ \ 1324 .start = iwl_op_mode_mvm_start, \ 1325 .stop = iwl_op_mode_mvm_stop 1326 1327 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1328 IWL_MVM_COMMON_OPS, 1329 .rx = iwl_mvm_rx, 1330 }; 1331 1332 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1333 struct napi_struct *napi, 1334 struct iwl_rx_cmd_buffer *rxb, 1335 unsigned int queue) 1336 { 1337 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1338 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1339 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1340 1341 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1342 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1343 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1344 RX_QUEUES_NOTIFICATION))) 1345 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1346 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1347 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1348 } 1349 1350 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1351 IWL_MVM_COMMON_OPS, 1352 .rx = iwl_mvm_rx_mq, 1353 .rx_rss = iwl_mvm_rx_mq_rss, 1354 }; 1355