Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/contrib/dev/iwlwifi/mvm/ops.c
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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 #if defined(__FreeBSD__) 8 #define LINUXKPI_PARAM_PREFIX iwlwifi_mvm_ 9 #endif 10 #include <linux/module.h> 11 #if defined(__linux__) 12 #include <linux/rtnetlink.h> 13 #endif 14 #include <linux/vmalloc.h> 15 #include <net/mac80211.h> 16 17 #include "fw/notif-wait.h" 18 #include "iwl-trans.h" 19 #include "iwl-op-mode.h" 20 #include "fw/img.h" 21 #include "iwl-debug.h" 22 #include "iwl-drv.h" 23 #include "iwl-modparams.h" 24 #include "mvm.h" 25 #include "iwl-phy-db.h" 26 #include "iwl-eeprom-parse.h" 27 #include "iwl-csr.h" 28 #include "iwl-io.h" 29 #include "iwl-prph.h" 30 #include "rs.h" 31 #include "fw/api/scan.h" 32 #include "fw/api/rfi.h" 33 #include "time-event.h" 34 #include "fw-api.h" 35 #include "fw/acpi.h" 36 #include "fw/uefi.h" 37 38 #if defined(__linux__) 39 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" 40 MODULE_LICENSE("GPL"); 41 #elif defined(__FreeBSD__) 42 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN/AC/AX based driver for FreeBSD" 43 MODULE_LICENSE("BSD"); 44 #endif 45 MODULE_DESCRIPTION(DRV_DESCRIPTION); 46 MODULE_IMPORT_NS(IWLWIFI); 47 48 static const struct iwl_op_mode_ops iwl_mvm_ops; 49 static const struct iwl_op_mode_ops iwl_mvm_ops_mq; 50 51 struct iwl_mvm_mod_params iwlmvm_mod_params = { 52 #if defined(__FreeBSD__) 53 .power_scheme = IWL_POWER_SCHEME_CAM, /* disable default PS */ 54 #else 55 .power_scheme = IWL_POWER_SCHEME_BPS, 56 #endif 57 /* rest of fields are 0 by default */ 58 }; 59 60 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); 61 MODULE_PARM_DESC(init_dbg, 62 "set to true to debug an ASSERT in INIT fw (default: false"); 63 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); 64 MODULE_PARM_DESC(power_scheme, 65 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); 66 67 /* 68 * module init and exit functions 69 */ 70 static int __init iwl_mvm_init(void) 71 { 72 int ret; 73 74 ret = iwl_mvm_rate_control_register(); 75 if (ret) { 76 pr_err("Unable to register rate control algorithm: %d\n", ret); 77 return ret; 78 } 79 80 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); 81 if (ret) 82 pr_err("Unable to register MVM op_mode: %d\n", ret); 83 84 return ret; 85 } 86 #if defined(__linux__) 87 module_init(iwl_mvm_init); 88 #elif defined(__FreeBSD__) 89 module_init_order(iwl_mvm_init, SI_ORDER_SECOND); 90 #endif 91 92 static void __exit iwl_mvm_exit(void) 93 { 94 iwl_opmode_deregister("iwlmvm"); 95 iwl_mvm_rate_control_unregister(); 96 } 97 module_exit(iwl_mvm_exit); 98 99 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) 100 { 101 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 102 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; 103 u32 reg_val; 104 u32 phy_config = iwl_mvm_get_phy_config(mvm); 105 106 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> 107 FW_PHY_CFG_RADIO_TYPE_POS; 108 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> 109 FW_PHY_CFG_RADIO_STEP_POS; 110 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> 111 FW_PHY_CFG_RADIO_DASH_POS; 112 113 /* SKU control */ 114 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); 115 116 /* radio configuration */ 117 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; 118 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; 119 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; 120 121 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & 122 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); 123 124 /* 125 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC 126 * sampling, and shouldn't be set to any non-zero value. 127 * The same is supposed to be true of the other HW, but unsetting 128 * them (such as the 7260) causes automatic tests to fail on seemingly 129 * unrelated errors. Need to further investigate this, but for now 130 * we'll separate cases. 131 */ 132 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) 133 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; 134 135 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) 136 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; 137 138 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, 139 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | 140 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | 141 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | 142 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | 143 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | 144 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | 145 CSR_HW_IF_CONFIG_REG_D3_DEBUG, 146 reg_val); 147 148 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, 149 radio_cfg_step, radio_cfg_dash); 150 151 /* 152 * W/A : NIC is stuck in a reset state after Early PCIe power off 153 * (PCIe power is lost before PERST# is asserted), causing ME FW 154 * to lose ownership and not being able to obtain it back. 155 */ 156 if (!mvm->trans->cfg->apmg_not_supported) 157 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, 158 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, 159 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); 160 } 161 162 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, 163 struct iwl_rx_cmd_buffer *rxb) 164 { 165 struct iwl_rx_packet *pkt = rxb_addr(rxb); 166 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; 167 struct ieee80211_supported_band *sband; 168 const struct ieee80211_sta_he_cap *he_cap; 169 struct ieee80211_vif *vif; 170 171 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) 172 return; 173 174 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); 175 if (!vif || vif->type != NL80211_IFTYPE_STATION) 176 return; 177 178 if (!vif->bss_conf.chandef.chan || 179 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || 180 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40) 181 return; 182 183 if (!vif->bss_conf.assoc) 184 return; 185 186 /* this shouldn't happen *again*, ignore it */ 187 if (mvm->cca_40mhz_workaround) 188 return; 189 190 /* 191 * We'll decrement this on disconnect - so set to 2 since we'll 192 * still have to disconnect from the current AP first. 193 */ 194 mvm->cca_40mhz_workaround = 2; 195 196 /* 197 * This capability manipulation isn't really ideal, but it's the 198 * easiest choice - otherwise we'd have to do some major changes 199 * in mac80211 to support this, which isn't worth it. This does 200 * mean that userspace may have outdated information, but that's 201 * actually not an issue at all. 202 */ 203 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; 204 205 WARN_ON(!sband->ht_cap.ht_supported); 206 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); 207 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 208 209 he_cap = ieee80211_get_he_iftype_cap(sband, 210 ieee80211_vif_type_p2p(vif)); 211 212 if (he_cap) { 213 /* we know that ours is writable */ 214 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; 215 216 WARN_ON(!he->has_he); 217 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & 218 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); 219 he->he_cap_elem.phy_cap_info[0] &= 220 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; 221 } 222 223 ieee80211_disconnect(vif, true); 224 } 225 226 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif) 227 { 228 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 229 struct iwl_mvm *mvm = mvmvif->mvm; 230 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; 231 232 if (mvm->fw_static_smps_request && 233 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 && 234 vif->bss_conf.he_support) 235 mode = IEEE80211_SMPS_STATIC; 236 237 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode); 238 } 239 240 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, 241 struct ieee80211_vif *vif) 242 { 243 iwl_mvm_apply_fw_smps_request(vif); 244 } 245 246 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, 247 struct iwl_rx_cmd_buffer *rxb) 248 { 249 struct iwl_rx_packet *pkt = rxb_addr(rxb); 250 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; 251 252 /* 253 * We could pass it to the iterator data, but also need to remember 254 * it for new interfaces that are added while in this state. 255 */ 256 mvm->fw_static_smps_request = 257 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); 258 ieee80211_iterate_interfaces(mvm->hw, 259 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, 260 iwl_mvm_intf_dual_chain_req, NULL); 261 } 262 263 /** 264 * enum iwl_rx_handler_context context for Rx handler 265 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path 266 * which can't acquire mvm->mutex. 267 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex 268 * (and only in this case!), it should be set as ASYNC. In that case, 269 * it will be called from a worker with mvm->mutex held. 270 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the 271 * mutex itself, it will be called from a worker without mvm->mutex held. 272 */ 273 enum iwl_rx_handler_context { 274 RX_HANDLER_SYNC, 275 RX_HANDLER_ASYNC_LOCKED, 276 RX_HANDLER_ASYNC_UNLOCKED, 277 }; 278 279 /** 280 * struct iwl_rx_handlers handler for FW notification 281 * @cmd_id: command id 282 * @min_size: minimum size to expect for the notification 283 * @context: see &iwl_rx_handler_context 284 * @fn: the function is called when notification is received 285 */ 286 struct iwl_rx_handlers { 287 u16 cmd_id, min_size; 288 enum iwl_rx_handler_context context; 289 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 290 }; 291 292 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ 293 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } 294 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ 295 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } 296 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ 297 { .cmd_id = _cmd_id, .fn = _fn, \ 298 .context = _context, .min_size = sizeof(_struct), } 299 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ 300 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ 301 .context = _context, .min_size = sizeof(_struct), } 302 303 /* 304 * Handlers for fw notifications 305 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME 306 * This list should be in order of frequency for performance purposes. 307 * 308 * The handler can be one from three contexts, see &iwl_rx_handler_context 309 */ 310 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { 311 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, 312 struct iwl_mvm_tx_resp), 313 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, 314 struct iwl_mvm_ba_notif), 315 316 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, 317 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, 318 struct iwl_tlc_update_notif), 319 320 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, 321 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif), 322 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, 323 RX_HANDLER_ASYNC_LOCKED), 324 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, 325 RX_HANDLER_ASYNC_LOCKED), 326 327 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, 328 iwl_mvm_window_status_notif, RX_HANDLER_SYNC, 329 struct iwl_ba_window_status_notif), 330 331 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, 332 RX_HANDLER_SYNC, struct iwl_time_event_notif), 333 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, 334 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, 335 struct iwl_mvm_session_prot_notif), 336 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, 337 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), 338 339 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, 340 struct iwl_mvm_eosp_notification), 341 342 RX_HANDLER(SCAN_ITERATION_COMPLETE, 343 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, 344 struct iwl_lmac_scan_complete_notif), 345 RX_HANDLER(SCAN_OFFLOAD_COMPLETE, 346 iwl_mvm_rx_lmac_scan_complete_notif, 347 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), 348 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, 349 iwl_mvm_rx_scan_match_found, 350 RX_HANDLER_SYNC), 351 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, 352 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), 353 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, 354 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, 355 struct iwl_umac_scan_iter_complete_notif), 356 357 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, 358 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif), 359 360 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, 361 struct iwl_error_resp), 362 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, 363 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, 364 struct iwl_uapsd_misbehaving_ap_notif), 365 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, 366 RX_HANDLER_ASYNC_LOCKED), 367 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, 368 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), 369 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, 370 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, 371 struct ct_kill_notif), 372 373 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, 374 RX_HANDLER_ASYNC_LOCKED, 375 struct iwl_tdls_channel_switch_notif), 376 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, 377 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), 378 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, 379 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, 380 struct iwl_ftm_responder_stats), 381 382 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 383 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), 384 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, 385 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), 386 387 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, 388 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, 389 struct iwl_mfu_assert_dump_notif), 390 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, 391 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, 392 struct iwl_stored_beacon_notif_v2), 393 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, 394 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, 395 struct iwl_mu_group_mgmt_notif), 396 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, 397 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, 398 struct iwl_mvm_pm_state_notification), 399 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, 400 iwl_mvm_probe_resp_data_notif, 401 RX_HANDLER_ASYNC_LOCKED, 402 struct iwl_probe_resp_data_notif), 403 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, 404 iwl_mvm_channel_switch_start_notif, 405 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), 406 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, 407 iwl_mvm_channel_switch_error_notif, 408 RX_HANDLER_ASYNC_UNLOCKED, 409 struct iwl_channel_switch_error_notif), 410 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, 411 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, 412 struct iwl_datapath_monitor_notif), 413 414 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, 415 iwl_mvm_rx_thermal_dual_chain_req, 416 RX_HANDLER_ASYNC_LOCKED, 417 struct iwl_thermal_dual_chain_request), 418 419 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, 420 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, 421 struct iwl_rfi_deactivate_notif), 422 }; 423 #undef RX_HANDLER 424 #undef RX_HANDLER_GRP 425 426 /* Please keep this array *SORTED* by hex value. 427 * Access is done through binary search 428 */ 429 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { 430 HCMD_NAME(UCODE_ALIVE_NTFY), 431 HCMD_NAME(REPLY_ERROR), 432 HCMD_NAME(ECHO_CMD), 433 HCMD_NAME(INIT_COMPLETE_NOTIF), 434 HCMD_NAME(PHY_CONTEXT_CMD), 435 HCMD_NAME(DBG_CFG), 436 HCMD_NAME(SCAN_CFG_CMD), 437 HCMD_NAME(SCAN_REQ_UMAC), 438 HCMD_NAME(SCAN_ABORT_UMAC), 439 HCMD_NAME(SCAN_COMPLETE_UMAC), 440 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), 441 HCMD_NAME(ADD_STA_KEY), 442 HCMD_NAME(ADD_STA), 443 HCMD_NAME(REMOVE_STA), 444 HCMD_NAME(FW_GET_ITEM_CMD), 445 HCMD_NAME(TX_CMD), 446 HCMD_NAME(SCD_QUEUE_CFG), 447 HCMD_NAME(TXPATH_FLUSH), 448 HCMD_NAME(MGMT_MCAST_KEY), 449 HCMD_NAME(WEP_KEY), 450 HCMD_NAME(SHARED_MEM_CFG), 451 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), 452 HCMD_NAME(MAC_CONTEXT_CMD), 453 HCMD_NAME(TIME_EVENT_CMD), 454 HCMD_NAME(TIME_EVENT_NOTIFICATION), 455 HCMD_NAME(BINDING_CONTEXT_CMD), 456 HCMD_NAME(TIME_QUOTA_CMD), 457 HCMD_NAME(NON_QOS_TX_COUNTER_CMD), 458 HCMD_NAME(LEDS_CMD), 459 HCMD_NAME(LQ_CMD), 460 HCMD_NAME(FW_PAGING_BLOCK_CMD), 461 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), 462 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), 463 HCMD_NAME(HOT_SPOT_CMD), 464 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), 465 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), 466 HCMD_NAME(BT_COEX_CI), 467 HCMD_NAME(PHY_CONFIGURATION_CMD), 468 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), 469 HCMD_NAME(PHY_DB_CMD), 470 HCMD_NAME(SCAN_OFFLOAD_COMPLETE), 471 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), 472 HCMD_NAME(POWER_TABLE_CMD), 473 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), 474 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), 475 HCMD_NAME(NVM_ACCESS_CMD), 476 HCMD_NAME(BEACON_NOTIFICATION), 477 HCMD_NAME(BEACON_TEMPLATE_CMD), 478 HCMD_NAME(TX_ANT_CONFIGURATION_CMD), 479 HCMD_NAME(BT_CONFIG), 480 HCMD_NAME(STATISTICS_CMD), 481 HCMD_NAME(STATISTICS_NOTIFICATION), 482 HCMD_NAME(EOSP_NOTIFICATION), 483 HCMD_NAME(REDUCE_TX_POWER_CMD), 484 HCMD_NAME(MISSED_BEACONS_NOTIFICATION), 485 HCMD_NAME(TDLS_CONFIG_CMD), 486 HCMD_NAME(MAC_PM_POWER_TABLE), 487 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), 488 HCMD_NAME(MFUART_LOAD_NOTIFICATION), 489 HCMD_NAME(RSS_CONFIG_CMD), 490 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), 491 HCMD_NAME(REPLY_RX_PHY_CMD), 492 HCMD_NAME(REPLY_RX_MPDU_CMD), 493 HCMD_NAME(BAR_FRAME_RELEASE), 494 HCMD_NAME(FRAME_RELEASE), 495 HCMD_NAME(BA_NOTIF), 496 HCMD_NAME(MCC_UPDATE_CMD), 497 HCMD_NAME(MCC_CHUB_UPDATE_CMD), 498 HCMD_NAME(MARKER_CMD), 499 HCMD_NAME(BT_PROFILE_NOTIFICATION), 500 HCMD_NAME(MCAST_FILTER_CMD), 501 HCMD_NAME(REPLY_SF_CFG_CMD), 502 HCMD_NAME(REPLY_BEACON_FILTERING_CMD), 503 HCMD_NAME(D3_CONFIG_CMD), 504 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), 505 HCMD_NAME(OFFLOADS_QUERY_CMD), 506 HCMD_NAME(MATCH_FOUND_NOTIFICATION), 507 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), 508 HCMD_NAME(WOWLAN_PATTERNS), 509 HCMD_NAME(WOWLAN_CONFIGURATION), 510 HCMD_NAME(WOWLAN_TSC_RSC_PARAM), 511 HCMD_NAME(WOWLAN_TKIP_PARAM), 512 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), 513 HCMD_NAME(WOWLAN_GET_STATUSES), 514 HCMD_NAME(SCAN_ITERATION_COMPLETE), 515 HCMD_NAME(D0I3_END_CMD), 516 HCMD_NAME(LTR_CONFIG), 517 HCMD_NAME(LDBG_CONFIG_CMD), 518 }; 519 520 /* Please keep this array *SORTED* by hex value. 521 * Access is done through binary search 522 */ 523 static const struct iwl_hcmd_names iwl_mvm_system_names[] = { 524 HCMD_NAME(SHARED_MEM_CFG_CMD), 525 HCMD_NAME(INIT_EXTENDED_CFG_CMD), 526 HCMD_NAME(FW_ERROR_RECOVERY_CMD), 527 HCMD_NAME(RFI_CONFIG_CMD), 528 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), 529 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), 530 HCMD_NAME(RFI_DEACTIVATE_NOTIF), 531 }; 532 533 /* Please keep this array *SORTED* by hex value. 534 * Access is done through binary search 535 */ 536 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { 537 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), 538 HCMD_NAME(SESSION_PROTECTION_CMD), 539 HCMD_NAME(SESSION_PROTECTION_NOTIF), 540 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), 541 }; 542 543 /* Please keep this array *SORTED* by hex value. 544 * Access is done through binary search 545 */ 546 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { 547 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), 548 HCMD_NAME(CTDP_CONFIG_CMD), 549 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), 550 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), 551 HCMD_NAME(CT_KILL_NOTIFICATION), 552 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), 553 }; 554 555 /* Please keep this array *SORTED* by hex value. 556 * Access is done through binary search 557 */ 558 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { 559 HCMD_NAME(DQA_ENABLE_CMD), 560 HCMD_NAME(UPDATE_MU_GROUPS_CMD), 561 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), 562 HCMD_NAME(STA_HE_CTXT_CMD), 563 HCMD_NAME(RLC_CONFIG_CMD), 564 HCMD_NAME(RFH_QUEUE_CONFIG_CMD), 565 HCMD_NAME(TLC_MNG_CONFIG_CMD), 566 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), 567 HCMD_NAME(SCD_QUEUE_CONFIG_CMD), 568 HCMD_NAME(MONITOR_NOTIF), 569 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), 570 HCMD_NAME(STA_PM_NOTIF), 571 HCMD_NAME(MU_GROUP_MGMT_NOTIF), 572 HCMD_NAME(RX_QUEUES_NOTIFICATION), 573 }; 574 575 /* Please keep this array *SORTED* by hex value. 576 * Access is done through binary search 577 */ 578 static const struct iwl_hcmd_names iwl_mvm_location_names[] = { 579 HCMD_NAME(TOF_RANGE_REQ_CMD), 580 HCMD_NAME(TOF_CONFIG_CMD), 581 HCMD_NAME(TOF_RANGE_ABORT_CMD), 582 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), 583 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), 584 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), 585 HCMD_NAME(TOF_LC_NOTIF), 586 HCMD_NAME(TOF_RESPONDER_STATS), 587 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), 588 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), 589 }; 590 591 /* Please keep this array *SORTED* by hex value. 592 * Access is done through binary search 593 */ 594 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { 595 HCMD_NAME(STORED_BEACON_NTF), 596 }; 597 598 /* Please keep this array *SORTED* by hex value. 599 * Access is done through binary search 600 */ 601 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { 602 HCMD_NAME(NVM_ACCESS_COMPLETE), 603 HCMD_NAME(NVM_GET_INFO), 604 HCMD_NAME(TAS_CONFIG), 605 }; 606 607 static const struct iwl_hcmd_arr iwl_mvm_groups[] = { 608 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 609 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), 610 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), 611 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), 612 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), 613 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), 614 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), 615 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), 616 [REGULATORY_AND_NVM_GROUP] = 617 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), 618 }; 619 620 /* this forward declaration can avoid to export the function */ 621 static void iwl_mvm_async_handlers_wk(struct work_struct *wk); 622 623 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) 624 { 625 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; 626 u64 dflt_pwr_limit; 627 628 if (!backoff) 629 return 0; 630 631 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); 632 633 while (backoff->pwr) { 634 if (dflt_pwr_limit >= backoff->pwr) 635 return backoff->backoff; 636 637 backoff++; 638 } 639 640 return 0; 641 } 642 643 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) 644 { 645 struct iwl_mvm *mvm = 646 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); 647 struct ieee80211_vif *tx_blocked_vif; 648 struct iwl_mvm_vif *mvmvif; 649 650 mutex_lock(&mvm->mutex); 651 652 tx_blocked_vif = 653 rcu_dereference_protected(mvm->csa_tx_blocked_vif, 654 lockdep_is_held(&mvm->mutex)); 655 656 if (!tx_blocked_vif) 657 goto unlock; 658 659 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); 660 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); 661 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); 662 unlock: 663 mutex_unlock(&mvm->mutex); 664 } 665 666 static void iwl_mvm_fwrt_dump_start(void *ctx) 667 { 668 struct iwl_mvm *mvm = ctx; 669 670 mutex_lock(&mvm->mutex); 671 } 672 673 static void iwl_mvm_fwrt_dump_end(void *ctx) 674 { 675 struct iwl_mvm *mvm = ctx; 676 677 mutex_unlock(&mvm->mutex); 678 } 679 680 static bool iwl_mvm_fwrt_fw_running(void *ctx) 681 { 682 return iwl_mvm_firmware_running(ctx); 683 } 684 685 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) 686 { 687 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; 688 int ret; 689 690 mutex_lock(&mvm->mutex); 691 ret = iwl_mvm_send_cmd(mvm, host_cmd); 692 mutex_unlock(&mvm->mutex); 693 694 return ret; 695 } 696 697 static bool iwl_mvm_d3_debug_enable(void *ctx) 698 { 699 return IWL_MVM_D3_DEBUG; 700 } 701 702 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { 703 .dump_start = iwl_mvm_fwrt_dump_start, 704 .dump_end = iwl_mvm_fwrt_dump_end, 705 .fw_running = iwl_mvm_fwrt_fw_running, 706 .send_hcmd = iwl_mvm_fwrt_send_hcmd, 707 .d3_debug_enable = iwl_mvm_d3_debug_enable, 708 }; 709 710 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) 711 { 712 struct iwl_trans *trans = mvm->trans; 713 int ret; 714 715 if (trans->csme_own) { 716 if (WARN(!mvm->mei_registered, 717 "csme is owner, but we aren't registered to iwlmei\n")) 718 goto get_nvm_from_fw; 719 720 mvm->mei_nvm_data = iwl_mei_get_nvm(); 721 if (mvm->mei_nvm_data) { 722 /* 723 * mvm->mei_nvm_data is set and because of that, 724 * we'll load the NVM from the FW when we'll get 725 * ownership. 726 */ 727 mvm->nvm_data = 728 iwl_parse_mei_nvm_data(trans, trans->cfg, 729 mvm->mei_nvm_data, mvm->fw); 730 return 0; 731 } 732 733 IWL_ERR(mvm, 734 "Got a NULL NVM from CSME, trying to get it from the device\n"); 735 } 736 737 get_nvm_from_fw: 738 rtnl_lock(); 739 wiphy_lock(mvm->hw->wiphy); 740 mutex_lock(&mvm->mutex); 741 742 ret = iwl_trans_start_hw(mvm->trans); 743 if (ret) { 744 mutex_unlock(&mvm->mutex); 745 wiphy_unlock(mvm->hw->wiphy); 746 rtnl_unlock(); 747 return ret; 748 } 749 750 ret = iwl_run_init_mvm_ucode(mvm); 751 if (ret && ret != -ERFKILL) 752 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); 753 if (!ret && iwl_mvm_is_lar_supported(mvm)) { 754 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; 755 ret = iwl_mvm_init_mcc(mvm); 756 } 757 758 if (!iwlmvm_mod_params.init_dbg || !ret) 759 iwl_mvm_stop_device(mvm); 760 761 mutex_unlock(&mvm->mutex); 762 wiphy_unlock(mvm->hw->wiphy); 763 rtnl_unlock(); 764 765 if (ret) 766 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); 767 768 return ret; 769 } 770 771 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) 772 { 773 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 774 int ret; 775 776 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); 777 778 ret = iwl_mvm_mac_setup_register(mvm); 779 if (ret) 780 return ret; 781 782 mvm->hw_registered = true; 783 784 iwl_mvm_dbgfs_register(mvm); 785 786 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 787 mvm->mei_rfkill_blocked, 788 RFKILL_HARD_BLOCK_NOT_OWNER); 789 790 iwl_mvm_mei_set_sw_rfkill_state(mvm); 791 792 return 0; 793 } 794 795 struct iwl_mvm_frob_txf_data { 796 u8 *buf; 797 size_t buflen; 798 }; 799 800 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, 801 struct ieee80211_vif *vif, 802 struct ieee80211_sta *sta, 803 struct ieee80211_key_conf *key, 804 void *data) 805 { 806 struct iwl_mvm_frob_txf_data *txf = data; 807 u8 keylen, match, matchend; 808 u8 *keydata; 809 size_t i; 810 811 switch (key->cipher) { 812 case WLAN_CIPHER_SUITE_CCMP: 813 keydata = key->key; 814 keylen = key->keylen; 815 break; 816 case WLAN_CIPHER_SUITE_WEP40: 817 case WLAN_CIPHER_SUITE_WEP104: 818 case WLAN_CIPHER_SUITE_TKIP: 819 /* 820 * WEP has short keys which might show up in the payload, 821 * and then you can deduce the key, so in this case just 822 * remove all FIFO data. 823 * For TKIP, we don't know the phase 2 keys here, so same. 824 */ 825 memset(txf->buf, 0xBB, txf->buflen); 826 return; 827 default: 828 return; 829 } 830 831 /* scan for key material and clear it out */ 832 match = 0; 833 for (i = 0; i < txf->buflen; i++) { 834 if (txf->buf[i] != keydata[match]) { 835 match = 0; 836 continue; 837 } 838 match++; 839 if (match == keylen) { 840 memset(txf->buf + i - keylen, 0xAA, keylen); 841 match = 0; 842 } 843 } 844 845 /* we're dealing with a FIFO, so check wrapped around data */ 846 matchend = match; 847 for (i = 0; match && i < keylen - match; i++) { 848 if (txf->buf[i] != keydata[match]) 849 break; 850 match++; 851 if (match == keylen) { 852 memset(txf->buf, 0xAA, i + 1); 853 memset(txf->buf + txf->buflen - matchend, 0xAA, 854 matchend); 855 break; 856 } 857 } 858 } 859 860 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) 861 { 862 struct iwl_mvm_frob_txf_data txf = { 863 .buf = buf, 864 .buflen = buflen, 865 }; 866 struct iwl_mvm *mvm = ctx; 867 868 /* embedded key material exists only on old API */ 869 if (iwl_mvm_has_new_tx_api(mvm)) 870 return; 871 872 rcu_read_lock(); 873 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); 874 rcu_read_unlock(); 875 } 876 877 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) 878 { 879 /* we only use wide headers for commands */ 880 struct iwl_cmd_header_wide *hdr = hcmd; 881 unsigned int frob_start = sizeof(*hdr), frob_end = 0; 882 883 if (len < sizeof(hdr)) 884 return; 885 886 /* all the commands we care about are in LONG_GROUP */ 887 if (hdr->group_id != LONG_GROUP) 888 return; 889 890 switch (hdr->cmd) { 891 case WEP_KEY: 892 case WOWLAN_TKIP_PARAM: 893 case WOWLAN_KEK_KCK_MATERIAL: 894 case ADD_STA_KEY: 895 /* 896 * blank out everything here, easier than dealing 897 * with the various versions of the command 898 */ 899 frob_end = INT_MAX; 900 break; 901 case MGMT_MCAST_KEY: 902 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 903 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != 904 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 905 906 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); 907 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < 908 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); 909 break; 910 } 911 912 if (frob_start >= frob_end) 913 return; 914 915 if (frob_end > len) 916 frob_end = len; 917 918 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); 919 } 920 921 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) 922 { 923 const struct iwl_dump_exclude *excl; 924 struct iwl_mvm *mvm = ctx; 925 int i; 926 927 switch (mvm->fwrt.cur_fw_img) { 928 case IWL_UCODE_INIT: 929 default: 930 /* not relevant */ 931 return; 932 case IWL_UCODE_REGULAR: 933 case IWL_UCODE_REGULAR_USNIFFER: 934 excl = mvm->fw->dump_excl; 935 break; 936 case IWL_UCODE_WOWLAN: 937 excl = mvm->fw->dump_excl_wowlan; 938 break; 939 } 940 941 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != 942 sizeof(mvm->fw->dump_excl_wowlan)); 943 944 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { 945 u32 start, end; 946 947 if (!excl[i].addr || !excl[i].size) 948 continue; 949 950 start = excl[i].addr; 951 end = start + excl[i].size; 952 953 if (end <= mem_addr || start >= mem_addr + buflen) 954 continue; 955 956 if (start < mem_addr) 957 start = mem_addr; 958 959 if (end > mem_addr + buflen) 960 end = mem_addr + buflen; 961 962 memset((u8 *)mem + start - mem_addr, 0xAA, end - start); 963 } 964 } 965 966 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { 967 .frob_txf = iwl_mvm_frob_txf, 968 .frob_hcmd = iwl_mvm_frob_hcmd, 969 .frob_mem = iwl_mvm_frob_mem, 970 }; 971 972 #if IS_ENABLED(CONFIG_IWLMEI) 973 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) 974 { 975 struct iwl_mvm *mvm = priv; 976 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; 977 978 /* 979 * This is protected by the guarantee that this function will not be 980 * called twice on two different threads 981 */ 982 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); 983 984 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); 985 if (!curr_conn_info) 986 return; 987 988 curr_conn_info->conn_info = *conn_info; 989 990 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); 991 992 if (prev_conn_info) 993 kfree_rcu(prev_conn_info, rcu_head); 994 } 995 996 static void iwl_mvm_mei_rfkill(void *priv, bool blocked) 997 { 998 struct iwl_mvm *mvm = priv; 999 1000 mvm->mei_rfkill_blocked = blocked; 1001 if (!mvm->hw_registered) 1002 return; 1003 1004 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, 1005 mvm->mei_rfkill_blocked, 1006 RFKILL_HARD_BLOCK_NOT_OWNER); 1007 } 1008 1009 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) 1010 { 1011 struct iwl_mvm *mvm = priv; 1012 1013 if (!mvm->hw_registered || !mvm->csme_vif) 1014 return; 1015 1016 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); 1017 } 1018 #endif 1019 1020 static void iwl_mvm_sap_connected_wk(struct work_struct *wk) 1021 { 1022 struct iwl_mvm *mvm = 1023 container_of(wk, struct iwl_mvm, sap_connected_wk); 1024 int ret; 1025 1026 ret = iwl_mvm_start_get_nvm(mvm); 1027 if (ret) 1028 goto out_free; 1029 1030 ret = iwl_mvm_start_post_nvm(mvm); 1031 if (ret) 1032 goto out_free; 1033 1034 return; 1035 1036 out_free: 1037 IWL_ERR(mvm, "Couldn't get started...\n"); 1038 iwl_mei_start_unregister(); 1039 iwl_mei_unregister_complete(); 1040 iwl_fw_flush_dumps(&mvm->fwrt); 1041 iwl_mvm_thermal_exit(mvm); 1042 iwl_fw_runtime_free(&mvm->fwrt); 1043 iwl_phy_db_free(mvm->phy_db); 1044 kfree(mvm->scan_cmd); 1045 iwl_trans_op_mode_leave(mvm->trans); 1046 kfree(mvm->nvm_data); 1047 kfree(mvm->mei_nvm_data); 1048 1049 ieee80211_free_hw(mvm->hw); 1050 } 1051 1052 #if IS_ENABLED(CONFIG_IWLMEI) 1053 static void iwl_mvm_mei_sap_connected(void *priv) 1054 { 1055 struct iwl_mvm *mvm = priv; 1056 1057 if (!mvm->hw_registered) 1058 schedule_work(&mvm->sap_connected_wk); 1059 } 1060 1061 static void iwl_mvm_mei_nic_stolen(void *priv) 1062 { 1063 struct iwl_mvm *mvm = priv; 1064 1065 rtnl_lock(); 1066 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); 1067 rtnl_unlock(); 1068 } 1069 1070 static const struct iwl_mei_ops mei_ops = { 1071 .me_conn_status = iwl_mvm_me_conn_status, 1072 .rfkill = iwl_mvm_mei_rfkill, 1073 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, 1074 .sap_connected = iwl_mvm_mei_sap_connected, 1075 .nic_stolen = iwl_mvm_mei_nic_stolen, 1076 }; 1077 #endif 1078 1079 static struct iwl_op_mode * 1080 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, 1081 const struct iwl_fw *fw, struct dentry *dbgfs_dir) 1082 { 1083 struct ieee80211_hw *hw; 1084 struct iwl_op_mode *op_mode; 1085 struct iwl_mvm *mvm; 1086 struct iwl_trans_config trans_cfg = {}; 1087 static const u8 no_reclaim_cmds[] = { 1088 TX_CMD, 1089 }; 1090 int scan_size; 1091 u32 min_backoff; 1092 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; 1093 1094 /* 1095 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station 1096 * index all over the driver - check that its value corresponds to the 1097 * array size. 1098 */ 1099 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != 1100 IWL_MVM_STATION_COUNT_MAX); 1101 1102 /******************************** 1103 * 1. Allocating and configuring HW data 1104 ********************************/ 1105 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + 1106 sizeof(struct iwl_mvm), 1107 &iwl_mvm_hw_ops); 1108 if (!hw) 1109 return NULL; 1110 1111 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 1112 1113 if (cfg->max_tx_agg_size) 1114 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; 1115 else 1116 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE; 1117 1118 op_mode = hw->priv; 1119 1120 mvm = IWL_OP_MODE_GET_MVM(op_mode); 1121 mvm->dev = trans->dev; 1122 mvm->trans = trans; 1123 mvm->cfg = cfg; 1124 mvm->fw = fw; 1125 mvm->hw = hw; 1126 1127 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, 1128 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); 1129 1130 iwl_mvm_get_acpi_tables(mvm); 1131 iwl_uefi_get_sgom_table(trans, &mvm->fwrt); 1132 1133 mvm->init_status = 0; 1134 1135 if (iwl_mvm_has_new_rx_api(mvm)) { 1136 op_mode->ops = &iwl_mvm_ops_mq; 1137 trans->rx_mpdu_cmd_hdr_size = 1138 (trans->trans_cfg->device_family >= 1139 IWL_DEVICE_FAMILY_AX210) ? 1140 sizeof(struct iwl_rx_mpdu_desc) : 1141 IWL_RX_DESC_SIZE_V1; 1142 } else { 1143 op_mode->ops = &iwl_mvm_ops; 1144 trans->rx_mpdu_cmd_hdr_size = 1145 sizeof(struct iwl_rx_mpdu_res_start); 1146 1147 if (WARN_ON(trans->num_rx_queues > 1)) 1148 goto out_free; 1149 } 1150 1151 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; 1152 1153 if (iwl_mvm_has_new_tx_api(mvm)) { 1154 /* 1155 * If we have the new TX/queue allocation API initialize them 1156 * all to invalid numbers. We'll rewrite the ones that we need 1157 * later, but that doesn't happen for all of them all of the 1158 * time (e.g. P2P Device is optional), and if a dynamic queue 1159 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then 1160 * iwl_mvm_is_static_queue() erroneously returns true, and we 1161 * might have things getting stuck. 1162 */ 1163 mvm->aux_queue = IWL_MVM_INVALID_QUEUE; 1164 mvm->snif_queue = IWL_MVM_INVALID_QUEUE; 1165 mvm->probe_queue = IWL_MVM_INVALID_QUEUE; 1166 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; 1167 } else { 1168 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; 1169 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; 1170 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; 1171 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; 1172 } 1173 1174 mvm->sf_state = SF_UNINIT; 1175 if (iwl_mvm_has_unified_ucode(mvm)) 1176 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); 1177 else 1178 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); 1179 mvm->drop_bcn_ap_mode = true; 1180 1181 mutex_init(&mvm->mutex); 1182 spin_lock_init(&mvm->async_handlers_lock); 1183 INIT_LIST_HEAD(&mvm->time_event_list); 1184 INIT_LIST_HEAD(&mvm->aux_roc_te_list); 1185 INIT_LIST_HEAD(&mvm->async_handlers_list); 1186 spin_lock_init(&mvm->time_event_lock); 1187 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); 1188 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); 1189 INIT_LIST_HEAD(&mvm->resp_pasn_list); 1190 1191 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); 1192 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); 1193 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); 1194 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); 1195 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); 1196 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); 1197 INIT_LIST_HEAD(&mvm->add_stream_txqs); 1198 1199 init_waitqueue_head(&mvm->rx_sync_waitq); 1200 1201 mvm->queue_sync_state = 0; 1202 1203 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); 1204 1205 spin_lock_init(&mvm->tcm.lock); 1206 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); 1207 mvm->tcm.ts = jiffies; 1208 mvm->tcm.ll_ts = jiffies; 1209 mvm->tcm.uapsd_nonagg_ts = jiffies; 1210 1211 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); 1212 1213 mvm->cmd_ver.d0i3_resp = 1214 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD, 1215 0); 1216 /* we only support version 1 */ 1217 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1)) 1218 goto out_free; 1219 1220 mvm->cmd_ver.range_resp = 1221 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, 1222 TOF_RANGE_RESPONSE_NOTIF, 5); 1223 /* we only support up to version 9 */ 1224 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) 1225 goto out_free; 1226 1227 /* 1228 * Populate the state variables that the transport layer needs 1229 * to know about. 1230 */ 1231 trans_cfg.op_mode = op_mode; 1232 trans_cfg.no_reclaim_cmds = no_reclaim_cmds; 1233 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); 1234 1235 switch (iwlwifi_mod_params.amsdu_size) { 1236 case IWL_AMSDU_DEF: 1237 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1238 break; 1239 case IWL_AMSDU_4K: 1240 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1241 break; 1242 case IWL_AMSDU_8K: 1243 trans_cfg.rx_buf_size = IWL_AMSDU_8K; 1244 break; 1245 case IWL_AMSDU_12K: 1246 trans_cfg.rx_buf_size = IWL_AMSDU_12K; 1247 break; 1248 default: 1249 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, 1250 iwlwifi_mod_params.amsdu_size); 1251 trans_cfg.rx_buf_size = IWL_AMSDU_4K; 1252 } 1253 1254 trans->wide_cmd_header = true; 1255 trans_cfg.bc_table_dword = 1256 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; 1257 1258 trans_cfg.command_groups = iwl_mvm_groups; 1259 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); 1260 1261 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; 1262 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; 1263 trans_cfg.scd_set_active = true; 1264 1265 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, 1266 driver_data[2]); 1267 1268 /* Set a short watchdog for the command queue */ 1269 trans_cfg.cmd_q_wdg_timeout = 1270 iwl_mvm_get_wd_timeout(mvm, NULL, false, true); 1271 1272 snprintf(mvm->hw->wiphy->fw_version, 1273 sizeof(mvm->hw->wiphy->fw_version), 1274 "%s", fw->fw_version); 1275 1276 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, 1277 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); 1278 1279 trans_cfg.queue_alloc_cmd_ver = 1280 iwl_fw_lookup_cmd_ver(mvm->fw, 1281 WIDE_ID(DATA_PATH_GROUP, 1282 SCD_QUEUE_CONFIG_CMD), 1283 0); 1284 mvm->sta_remove_requires_queue_remove = 1285 trans_cfg.queue_alloc_cmd_ver > 0; 1286 1287 /* Configure transport layer */ 1288 iwl_trans_configure(mvm->trans, &trans_cfg); 1289 1290 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; 1291 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; 1292 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; 1293 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, 1294 sizeof(trans->dbg.conf_tlv)); 1295 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; 1296 1297 trans->iml = mvm->fw->iml; 1298 trans->iml_len = mvm->fw->iml_len; 1299 1300 /* set up notification wait support */ 1301 iwl_notification_wait_init(&mvm->notif_wait); 1302 1303 /* Init phy db */ 1304 mvm->phy_db = iwl_phy_db_init(trans); 1305 if (!mvm->phy_db) { 1306 IWL_ERR(mvm, "Cannot init phy_db\n"); 1307 goto out_free; 1308 } 1309 1310 IWL_INFO(mvm, "Detected %s, REV=0x%X\n", 1311 mvm->trans->name, mvm->trans->hw_rev); 1312 1313 if (iwlwifi_mod_params.nvm_file) 1314 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; 1315 else 1316 IWL_DEBUG_EEPROM(mvm->trans->dev, 1317 "working without external nvm file\n"); 1318 1319 scan_size = iwl_mvm_scan_size(mvm); 1320 1321 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); 1322 if (!mvm->scan_cmd) 1323 goto out_free; 1324 1325 /* invalidate ids to prevent accidental removal of sta_id 0 */ 1326 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; 1327 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; 1328 1329 /* Set EBS as successful as long as not stated otherwise by the FW. */ 1330 mvm->last_ebs_successful = true; 1331 1332 min_backoff = iwl_mvm_min_backoff(mvm); 1333 iwl_mvm_thermal_initialize(mvm, min_backoff); 1334 1335 if (!iwl_mvm_has_new_rx_stats_api(mvm)) 1336 memset(&mvm->rx_stats_v3, 0, 1337 sizeof(struct mvm_statistics_rx_v3)); 1338 else 1339 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); 1340 1341 mvm->debugfs_dir = dbgfs_dir; 1342 1343 #if IS_ENABLED(CONFIG_IWLMEI) 1344 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); 1345 #else 1346 mvm->mei_registered = false; 1347 #endif 1348 1349 if (iwl_mvm_start_get_nvm(mvm)) { 1350 /* 1351 * Getting NVM failed while CSME is the owner, but we are 1352 * registered to MEI, we'll get the NVM later when it'll be 1353 * possible to get it from CSME. 1354 */ 1355 if (trans->csme_own && mvm->mei_registered) 1356 return op_mode; 1357 1358 goto out_thermal_exit; 1359 } 1360 1361 1362 if (iwl_mvm_start_post_nvm(mvm)) 1363 goto out_thermal_exit; 1364 1365 return op_mode; 1366 1367 out_thermal_exit: 1368 iwl_mvm_thermal_exit(mvm); 1369 if (mvm->mei_registered) { 1370 iwl_mei_start_unregister(); 1371 iwl_mei_unregister_complete(); 1372 } 1373 out_free: 1374 iwl_fw_flush_dumps(&mvm->fwrt); 1375 iwl_fw_runtime_free(&mvm->fwrt); 1376 1377 if (iwlmvm_mod_params.init_dbg) 1378 return op_mode; 1379 iwl_phy_db_free(mvm->phy_db); 1380 kfree(mvm->scan_cmd); 1381 iwl_trans_op_mode_leave(trans); 1382 1383 ieee80211_free_hw(mvm->hw); 1384 return NULL; 1385 } 1386 1387 void iwl_mvm_stop_device(struct iwl_mvm *mvm) 1388 { 1389 lockdep_assert_held(&mvm->mutex); 1390 1391 iwl_fw_cancel_timestamp(&mvm->fwrt); 1392 1393 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); 1394 1395 iwl_fw_dbg_stop_sync(&mvm->fwrt); 1396 iwl_trans_stop_device(mvm->trans); 1397 iwl_free_fw_paging(&mvm->fwrt); 1398 iwl_fw_dump_conf_clear(&mvm->fwrt); 1399 iwl_mvm_mei_device_down(mvm); 1400 } 1401 1402 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) 1403 { 1404 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1405 int i; 1406 1407 if (mvm->mei_registered) { 1408 rtnl_lock(); 1409 iwl_mei_set_netdev(NULL); 1410 rtnl_unlock(); 1411 iwl_mei_start_unregister(); 1412 } 1413 1414 /* 1415 * After we unregister from mei, the worker can't be scheduled 1416 * anymore. 1417 */ 1418 cancel_work_sync(&mvm->sap_connected_wk); 1419 1420 iwl_mvm_leds_exit(mvm); 1421 1422 iwl_mvm_thermal_exit(mvm); 1423 1424 /* 1425 * If we couldn't get ownership on the device and we couldn't 1426 * get the NVM from CSME, we haven't registered to mac80211. 1427 * In that case, we didn't fail op_mode_start, because we are 1428 * waiting for CSME to allow us to get the NVM to register to 1429 * mac80211. If that didn't happen, we haven't registered to 1430 * mac80211, hence the if below. 1431 */ 1432 if (mvm->hw_registered) 1433 ieee80211_unregister_hw(mvm->hw); 1434 1435 kfree(mvm->scan_cmd); 1436 kfree(mvm->mcast_filter_cmd); 1437 mvm->mcast_filter_cmd = NULL; 1438 1439 kfree(mvm->error_recovery_buf); 1440 mvm->error_recovery_buf = NULL; 1441 1442 iwl_trans_op_mode_leave(mvm->trans); 1443 1444 iwl_phy_db_free(mvm->phy_db); 1445 mvm->phy_db = NULL; 1446 1447 kfree(mvm->nvm_data); 1448 kfree(mvm->mei_nvm_data); 1449 kfree(rcu_access_pointer(mvm->csme_conn_info)); 1450 kfree(mvm->temp_nvm_data); 1451 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) 1452 kfree(mvm->nvm_sections[i].data); 1453 1454 cancel_delayed_work_sync(&mvm->tcm.work); 1455 1456 iwl_fw_runtime_free(&mvm->fwrt); 1457 mutex_destroy(&mvm->mutex); 1458 1459 if (mvm->mei_registered) 1460 iwl_mei_unregister_complete(); 1461 1462 ieee80211_free_hw(mvm->hw); 1463 } 1464 1465 struct iwl_async_handler_entry { 1466 struct list_head list; 1467 struct iwl_rx_cmd_buffer rxb; 1468 enum iwl_rx_handler_context context; 1469 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); 1470 }; 1471 1472 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) 1473 { 1474 struct iwl_async_handler_entry *entry, *tmp; 1475 1476 spin_lock_bh(&mvm->async_handlers_lock); 1477 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { 1478 iwl_free_rxb(&entry->rxb); 1479 list_del(&entry->list); 1480 kfree(entry); 1481 } 1482 spin_unlock_bh(&mvm->async_handlers_lock); 1483 } 1484 1485 static void iwl_mvm_async_handlers_wk(struct work_struct *wk) 1486 { 1487 struct iwl_mvm *mvm = 1488 container_of(wk, struct iwl_mvm, async_handlers_wk); 1489 struct iwl_async_handler_entry *entry, *tmp; 1490 LIST_HEAD(local_list); 1491 1492 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ 1493 1494 /* 1495 * Sync with Rx path with a lock. Remove all the entries from this list, 1496 * add them to a local one (lock free), and then handle them. 1497 */ 1498 spin_lock_bh(&mvm->async_handlers_lock); 1499 list_splice_init(&mvm->async_handlers_list, &local_list); 1500 spin_unlock_bh(&mvm->async_handlers_lock); 1501 1502 list_for_each_entry_safe(entry, tmp, &local_list, list) { 1503 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1504 mutex_lock(&mvm->mutex); 1505 entry->fn(mvm, &entry->rxb); 1506 iwl_free_rxb(&entry->rxb); 1507 list_del(&entry->list); 1508 if (entry->context == RX_HANDLER_ASYNC_LOCKED) 1509 mutex_unlock(&mvm->mutex); 1510 kfree(entry); 1511 } 1512 } 1513 1514 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, 1515 struct iwl_rx_packet *pkt) 1516 { 1517 struct iwl_fw_dbg_trigger_tlv *trig; 1518 struct iwl_fw_dbg_trigger_cmd *cmds_trig; 1519 int i; 1520 1521 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, 1522 FW_DBG_TRIGGER_FW_NOTIF); 1523 if (!trig) 1524 return; 1525 1526 cmds_trig = (void *)trig->data; 1527 1528 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { 1529 /* don't collect on CMD 0 */ 1530 if (!cmds_trig->cmds[i].cmd_id) 1531 break; 1532 1533 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || 1534 cmds_trig->cmds[i].group_id != pkt->hdr.group_id) 1535 continue; 1536 1537 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, 1538 "CMD 0x%02x.%02x received", 1539 pkt->hdr.group_id, pkt->hdr.cmd); 1540 break; 1541 } 1542 } 1543 1544 static void iwl_mvm_rx_common(struct iwl_mvm *mvm, 1545 struct iwl_rx_cmd_buffer *rxb, 1546 struct iwl_rx_packet *pkt) 1547 { 1548 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); 1549 int i; 1550 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; 1551 1552 iwl_dbg_tlv_time_point(&mvm->fwrt, 1553 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); 1554 iwl_mvm_rx_check_trigger(mvm, pkt); 1555 1556 /* 1557 * Do the notification wait before RX handlers so 1558 * even if the RX handler consumes the RXB we have 1559 * access to it in the notification wait entry. 1560 */ 1561 iwl_notification_wait_notify(&mvm->notif_wait, pkt); 1562 1563 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { 1564 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; 1565 struct iwl_async_handler_entry *entry; 1566 1567 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) 1568 continue; 1569 1570 if (unlikely(pkt_len < rx_h->min_size)) 1571 return; 1572 1573 if (rx_h->context == RX_HANDLER_SYNC) { 1574 rx_h->fn(mvm, rxb); 1575 return; 1576 } 1577 1578 entry = kzalloc(sizeof(*entry), GFP_ATOMIC); 1579 /* we can't do much... */ 1580 if (!entry) 1581 return; 1582 1583 entry->rxb._page = rxb_steal_page(rxb); 1584 entry->rxb._offset = rxb->_offset; 1585 entry->rxb._rx_page_order = rxb->_rx_page_order; 1586 entry->fn = rx_h->fn; 1587 entry->context = rx_h->context; 1588 spin_lock(&mvm->async_handlers_lock); 1589 list_add_tail(&entry->list, &mvm->async_handlers_list); 1590 spin_unlock(&mvm->async_handlers_lock); 1591 schedule_work(&mvm->async_handlers_wk); 1592 break; 1593 } 1594 } 1595 1596 static void iwl_mvm_rx(struct iwl_op_mode *op_mode, 1597 struct napi_struct *napi, 1598 struct iwl_rx_cmd_buffer *rxb) 1599 { 1600 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1601 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1602 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1603 1604 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1605 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); 1606 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) 1607 iwl_mvm_rx_rx_phy_cmd(mvm, rxb); 1608 else 1609 iwl_mvm_rx_common(mvm, rxb, pkt); 1610 } 1611 1612 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, 1613 struct napi_struct *napi, 1614 struct iwl_rx_cmd_buffer *rxb) 1615 { 1616 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1617 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1618 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1619 1620 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1621 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); 1622 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1623 RX_QUEUES_NOTIFICATION))) 1624 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); 1625 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) 1626 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); 1627 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) 1628 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); 1629 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) 1630 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); 1631 else 1632 iwl_mvm_rx_common(mvm, rxb, pkt); 1633 } 1634 1635 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, 1636 const struct iwl_device_cmd *cmd) 1637 { 1638 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1639 1640 /* 1641 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA 1642 * commands that need to block the Tx queues. 1643 */ 1644 iwl_trans_block_txq_ptrs(mvm->trans, false); 1645 } 1646 1647 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) 1648 { 1649 return queue == mvm->aux_queue || queue == mvm->probe_queue || 1650 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; 1651 } 1652 1653 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, 1654 int hw_queue, bool start) 1655 { 1656 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1657 struct ieee80211_sta *sta; 1658 struct ieee80211_txq *txq; 1659 struct iwl_mvm_txq *mvmtxq; 1660 int i; 1661 unsigned long tid_bitmap; 1662 struct iwl_mvm_sta *mvmsta; 1663 u8 sta_id; 1664 1665 sta_id = iwl_mvm_has_new_tx_api(mvm) ? 1666 mvm->tvqm_info[hw_queue].sta_id : 1667 mvm->queue_info[hw_queue].ra_sta_id; 1668 1669 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) 1670 return; 1671 1672 rcu_read_lock(); 1673 1674 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); 1675 if (IS_ERR_OR_NULL(sta)) 1676 goto out; 1677 mvmsta = iwl_mvm_sta_from_mac80211(sta); 1678 1679 if (iwl_mvm_is_static_queue(mvm, hw_queue)) { 1680 if (!start) 1681 ieee80211_stop_queues(mvm->hw); 1682 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1683 ieee80211_wake_queues(mvm->hw); 1684 1685 goto out; 1686 } 1687 1688 if (iwl_mvm_has_new_tx_api(mvm)) { 1689 int tid = mvm->tvqm_info[hw_queue].txq_tid; 1690 1691 tid_bitmap = BIT(tid); 1692 } else { 1693 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; 1694 } 1695 1696 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { 1697 int tid = i; 1698 1699 if (tid == IWL_MAX_TID_COUNT) 1700 tid = IEEE80211_NUM_TIDS; 1701 1702 txq = sta->txq[tid]; 1703 mvmtxq = iwl_mvm_txq_from_mac80211(txq); 1704 mvmtxq->stopped = !start; 1705 1706 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) 1707 iwl_mvm_mac_itxq_xmit(mvm->hw, txq); 1708 } 1709 1710 out: 1711 rcu_read_unlock(); 1712 } 1713 1714 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1715 { 1716 iwl_mvm_queue_state_change(op_mode, hw_queue, false); 1717 } 1718 1719 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) 1720 { 1721 iwl_mvm_queue_state_change(op_mode, hw_queue, true); 1722 } 1723 1724 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) 1725 { 1726 bool state = iwl_mvm_is_radio_killed(mvm); 1727 1728 if (state) 1729 wake_up(&mvm->rx_sync_waitq); 1730 1731 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); 1732 } 1733 1734 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) 1735 { 1736 if (state) 1737 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1738 else 1739 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); 1740 1741 iwl_mvm_set_rfkill_state(mvm); 1742 } 1743 1744 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) 1745 { 1746 return rcu_dereference_protected(mvm->csme_conn_info, 1747 lockdep_is_held(&mvm->mutex)); 1748 } 1749 1750 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) 1751 { 1752 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1753 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); 1754 bool unified = iwl_mvm_has_unified_ucode(mvm); 1755 1756 if (state) 1757 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1758 else 1759 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); 1760 1761 iwl_mvm_set_rfkill_state(mvm); 1762 1763 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ 1764 if (rfkill_safe_init_done) 1765 iwl_abort_notification_waits(&mvm->notif_wait); 1766 1767 /* 1768 * Don't ask the transport to stop the firmware. We'll do it 1769 * after cfg80211 takes us down. 1770 */ 1771 if (unified) 1772 return false; 1773 1774 /* 1775 * Stop the device if we run OPERATIONAL firmware or if we are in the 1776 * middle of the calibrations. 1777 */ 1778 return state && rfkill_safe_init_done; 1779 } 1780 1781 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) 1782 { 1783 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1784 struct ieee80211_tx_info *info; 1785 1786 info = IEEE80211_SKB_CB(skb); 1787 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); 1788 ieee80211_free_txskb(mvm->hw, skb); 1789 } 1790 1791 struct iwl_mvm_reprobe { 1792 struct device *dev; 1793 struct work_struct work; 1794 }; 1795 1796 static void iwl_mvm_reprobe_wk(struct work_struct *wk) 1797 { 1798 struct iwl_mvm_reprobe *reprobe; 1799 1800 reprobe = container_of(wk, struct iwl_mvm_reprobe, work); 1801 if (device_reprobe(reprobe->dev)) 1802 dev_err(reprobe->dev, "reprobe failed!\n"); 1803 put_device(reprobe->dev); 1804 kfree(reprobe); 1805 module_put(THIS_MODULE); 1806 } 1807 1808 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) 1809 { 1810 iwl_abort_notification_waits(&mvm->notif_wait); 1811 iwl_dbg_tlv_del_timers(mvm->trans); 1812 1813 /* 1814 * This is a bit racy, but worst case we tell mac80211 about 1815 * a stopped/aborted scan when that was already done which 1816 * is not a problem. It is necessary to abort any os scan 1817 * here because mac80211 requires having the scan cleared 1818 * before restarting. 1819 * We'll reset the scan_status to NONE in restart cleanup in 1820 * the next start() call from mac80211. If restart isn't called 1821 * (no fw restart) scan status will stay busy. 1822 */ 1823 iwl_mvm_report_scan_aborted(mvm); 1824 1825 /* 1826 * If we're restarting already, don't cycle restarts. 1827 * If INIT fw asserted, it will likely fail again. 1828 * If WoWLAN fw asserted, don't restart either, mac80211 1829 * can't recover this since we're already half suspended. 1830 */ 1831 if (!mvm->fw_restart && fw_error) { 1832 iwl_fw_error_collect(&mvm->fwrt, false); 1833 } else if (test_bit(IWL_MVM_STATUS_STARTING, 1834 &mvm->status)) { 1835 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); 1836 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { 1837 struct iwl_mvm_reprobe *reprobe; 1838 1839 IWL_ERR(mvm, 1840 "Firmware error during reconfiguration - reprobe!\n"); 1841 1842 /* 1843 * get a module reference to avoid doing this while unloading 1844 * anyway and to avoid scheduling a work with code that's 1845 * being removed. 1846 */ 1847 if (!try_module_get(THIS_MODULE)) { 1848 IWL_ERR(mvm, "Module is being unloaded - abort\n"); 1849 return; 1850 } 1851 1852 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); 1853 if (!reprobe) { 1854 module_put(THIS_MODULE); 1855 return; 1856 } 1857 reprobe->dev = get_device(mvm->trans->dev); 1858 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); 1859 schedule_work(&reprobe->work); 1860 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, 1861 &mvm->status)) { 1862 IWL_ERR(mvm, "HW restart already requested, but not started\n"); 1863 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && 1864 mvm->hw_registered && 1865 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { 1866 /* This should be first thing before trying to collect any 1867 * data to avoid endless loops if any HW error happens while 1868 * collecting debug data. 1869 */ 1870 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 1871 1872 if (mvm->fw->ucode_capa.error_log_size) { 1873 u32 src_size = mvm->fw->ucode_capa.error_log_size; 1874 u32 src_addr = mvm->fw->ucode_capa.error_log_addr; 1875 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); 1876 1877 if (recover_buf) { 1878 mvm->error_recovery_buf = recover_buf; 1879 iwl_trans_read_mem_bytes(mvm->trans, 1880 src_addr, 1881 recover_buf, 1882 src_size); 1883 } 1884 } 1885 1886 iwl_fw_error_collect(&mvm->fwrt, false); 1887 1888 if (fw_error && mvm->fw_restart > 0) { 1889 mvm->fw_restart--; 1890 ieee80211_restart_hw(mvm->hw); 1891 } else if (mvm->fwrt.trans->dbg.restart_required) { 1892 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); 1893 mvm->fwrt.trans->dbg.restart_required = FALSE; 1894 ieee80211_restart_hw(mvm->hw); 1895 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { 1896 ieee80211_restart_hw(mvm->hw); 1897 } 1898 } 1899 } 1900 1901 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) 1902 { 1903 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1904 1905 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && 1906 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, 1907 &mvm->status)) 1908 iwl_mvm_dump_nic_error_log(mvm); 1909 1910 if (sync) { 1911 iwl_fw_error_collect(&mvm->fwrt, true); 1912 /* 1913 * Currently, the only case for sync=true is during 1914 * shutdown, so just stop in this case. If/when that 1915 * changes, we need to be a bit smarter here. 1916 */ 1917 return; 1918 } 1919 1920 /* 1921 * If the firmware crashes while we're already considering it 1922 * to be dead then don't ask for a restart, that cannot do 1923 * anything useful anyway. 1924 */ 1925 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) 1926 return; 1927 1928 iwl_mvm_nic_restart(mvm, false); 1929 } 1930 1931 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) 1932 { 1933 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1934 1935 WARN_ON(1); 1936 iwl_mvm_nic_restart(mvm, true); 1937 } 1938 1939 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, 1940 enum iwl_fw_ini_time_point tp_id, 1941 union iwl_dbg_tlv_tp_data *tp_data) 1942 { 1943 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1944 1945 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); 1946 } 1947 1948 #define IWL_MVM_COMMON_OPS \ 1949 /* these could be differentiated */ \ 1950 .async_cb = iwl_mvm_async_cb, \ 1951 .queue_full = iwl_mvm_stop_sw_queue, \ 1952 .queue_not_full = iwl_mvm_wake_sw_queue, \ 1953 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ 1954 .free_skb = iwl_mvm_free_skb, \ 1955 .nic_error = iwl_mvm_nic_error, \ 1956 .cmd_queue_full = iwl_mvm_cmd_queue_full, \ 1957 .nic_config = iwl_mvm_nic_config, \ 1958 /* as we only register one, these MUST be common! */ \ 1959 .start = iwl_op_mode_mvm_start, \ 1960 .stop = iwl_op_mode_mvm_stop, \ 1961 .time_point = iwl_op_mode_mvm_time_point 1962 1963 static const struct iwl_op_mode_ops iwl_mvm_ops = { 1964 IWL_MVM_COMMON_OPS, 1965 .rx = iwl_mvm_rx, 1966 }; 1967 1968 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, 1969 struct napi_struct *napi, 1970 struct iwl_rx_cmd_buffer *rxb, 1971 unsigned int queue) 1972 { 1973 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); 1974 struct iwl_rx_packet *pkt = rxb_addr(rxb); 1975 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); 1976 1977 if (unlikely(queue >= mvm->trans->num_rx_queues)) 1978 return; 1979 1980 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) 1981 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); 1982 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, 1983 RX_QUEUES_NOTIFICATION))) 1984 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); 1985 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) 1986 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); 1987 } 1988 1989 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { 1990 IWL_MVM_COMMON_OPS, 1991 .rx = iwl_mvm_rx_mq, 1992 .rx_rss = iwl_mvm_rx_mq_rss, 1993 };
Cache object: 09f1755f3b492fd79c6c8eb3854beb37
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