// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright (C) 2012-2014, 2018-2024 Intel Corporation * Copyright (C) 2013-2015 Intel Mobile Communications GmbH * Copyright (C) 2016-2017 Intel Deutschland GmbH */ #if defined(__FreeBSD__) #define LINUXKPI_PARAM_PREFIX iwlwifi_mvm_ #endif #include #include #include #include #include "fw/notif-wait.h" #include "iwl-trans.h" #include "iwl-op-mode.h" #include "fw/img.h" #include "iwl-debug.h" #include "iwl-drv.h" #include "iwl-modparams.h" #include "mvm.h" #include "iwl-phy-db.h" #include "iwl-nvm-utils.h" #include "iwl-csr.h" #include "iwl-io.h" #include "iwl-prph.h" #include "rs.h" #include "fw/api/scan.h" #include "fw/api/rfi.h" #include "time-event.h" #include "fw-api.h" #include "fw/acpi.h" #include "fw/uefi.h" #include "time-sync.h" #if defined(__linux__) #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" MODULE_DESCRIPTION(DRV_DESCRIPTION); MODULE_LICENSE("GPL"); #elif defined(__FreeBSD__) #define DRV_DESCRIPTION "The new Intel(R) wireless AGN/AC/AX based driver for FreeBSD" MODULE_DESCRIPTION(DRV_DESCRIPTION); MODULE_LICENSE("BSD"); #endif MODULE_IMPORT_NS(IWLWIFI); static const struct iwl_op_mode_ops iwl_mvm_ops; static const struct iwl_op_mode_ops iwl_mvm_ops_mq; struct iwl_mvm_mod_params iwlmvm_mod_params = { #if defined(__linux__) .power_scheme = IWL_POWER_SCHEME_BPS, #elif defined(__FreeBSD__) .power_scheme = IWL_POWER_SCHEME_CAM, /* disable default PS */ #endif }; module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444); MODULE_PARM_DESC(power_scheme, "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); /* * module init and exit functions */ static int __init iwl_mvm_init(void) { int ret; ret = iwl_mvm_rate_control_register(); if (ret) { pr_err("Unable to register rate control algorithm: %d\n", ret); return ret; } ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); if (ret) pr_err("Unable to register MVM op_mode: %d\n", ret); return ret; } #if defined(__linux__) module_init(iwl_mvm_init); #elif defined(__FreeBSD__) module_init_order(iwl_mvm_init, SI_ORDER_SECOND); #endif static void __exit iwl_mvm_exit(void) { iwl_opmode_deregister("iwlmvm"); iwl_mvm_rate_control_unregister(); } module_exit(iwl_mvm_exit); static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; u32 reg_val; u32 phy_config = iwl_mvm_get_phy_config(mvm); radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> FW_PHY_CFG_RADIO_TYPE_POS; radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> FW_PHY_CFG_RADIO_STEP_POS; radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> FW_PHY_CFG_RADIO_DASH_POS; IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, radio_cfg_step, radio_cfg_dash); if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) return; /* SKU control */ reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev); /* radio configuration */ reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); /* * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC * sampling, and shouldn't be set to any non-zero value. * The same is supposed to be true of the other HW, but unsetting * them (such as the 7260) causes automatic tests to fail on seemingly * unrelated errors. Need to further investigate this, but for now * we'll separate cases. */ if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000) reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt)) reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG; iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH | CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | CSR_HW_IF_CONFIG_REG_D3_DEBUG, reg_val); /* * W/A : NIC is stuck in a reset state after Early PCIe power off * (PCIe power is lost before PERST# is asserted), causing ME FW * to lose ownership and not being able to obtain it back. */ if (!mvm->trans->cfg->apmg_not_supported) iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); } static void iwl_mvm_rx_esr_mode_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_mvm_esr_mode_notif *notif = (void *)pkt->data; struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm); /* FW recommendations is only for entering EMLSR */ if (IS_ERR_OR_NULL(vif) || iwl_mvm_vif_from_mac80211(vif)->esr_active) return; if (le32_to_cpu(notif->action) == ESR_RECOMMEND_ENTER) iwl_mvm_unblock_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW); else iwl_mvm_block_esr(mvm, vif, IWL_MVM_ESR_BLOCKED_FW, iwl_mvm_get_primary_link(vif)); } static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_datapath_monitor_notif *notif = (void *)pkt->data; struct ieee80211_supported_band *sband; const struct ieee80211_sta_he_cap *he_cap; struct ieee80211_vif *vif; if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA)) return; vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id); if (!vif || vif->type != NL80211_IFTYPE_STATION) return; if (!vif->bss_conf.chanreq.oper.chan || vif->bss_conf.chanreq.oper.chan->band != NL80211_BAND_2GHZ || vif->bss_conf.chanreq.oper.width < NL80211_CHAN_WIDTH_40) return; if (!vif->cfg.assoc) return; /* this shouldn't happen *again*, ignore it */ if (mvm->cca_40mhz_workaround) return; /* * We'll decrement this on disconnect - so set to 2 since we'll * still have to disconnect from the current AP first. */ mvm->cca_40mhz_workaround = 2; /* * This capability manipulation isn't really ideal, but it's the * easiest choice - otherwise we'd have to do some major changes * in mac80211 to support this, which isn't worth it. This does * mean that userspace may have outdated information, but that's * actually not an issue at all. */ sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ]; WARN_ON(!sband->ht_cap.ht_supported); WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)); sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif); if (he_cap) { /* we know that ours is writable */ struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap; WARN_ON(!he->has_he); WARN_ON(!(he->he_cap_elem.phy_cap_info[0] & IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G)); he->he_cap_elem.phy_cap_info[0] &= ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; } ieee80211_disconnect(vif, true); } void iwl_mvm_update_link_smps(struct ieee80211_vif *vif, struct ieee80211_bss_conf *link_conf) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_mvm *mvm = mvmvif->mvm; enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC; if (!link_conf) return; if (mvm->fw_static_smps_request && link_conf->chanreq.oper.width == NL80211_CHAN_WIDTH_160 && link_conf->he_support) mode = IEEE80211_SMPS_STATIC; iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode, link_conf->link_id); } static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac, struct ieee80211_vif *vif) { struct ieee80211_bss_conf *link_conf; unsigned int link_id; rcu_read_lock(); for_each_vif_active_link(vif, link_conf, link_id) iwl_mvm_update_link_smps(vif, link_conf); rcu_read_unlock(); } static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_thermal_dual_chain_request *req = (void *)pkt->data; /* * We could pass it to the iterator data, but also need to remember * it for new interfaces that are added while in this state. */ mvm->fw_static_smps_request = req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE); ieee80211_iterate_interfaces(mvm->hw, IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER, iwl_mvm_intf_dual_chain_req, NULL); } /** * enum iwl_rx_handler_context: context for Rx handler * @RX_HANDLER_SYNC : this means that it will be called in the Rx path * which can't acquire mvm->mutex. * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex * (and only in this case!), it should be set as ASYNC. In that case, * it will be called from a worker with mvm->mutex held. * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the * mutex itself, it will be called from a worker without mvm->mutex held. * @RX_HANDLER_ASYNC_LOCKED_WIPHY: If the handler needs to hold the wiphy lock * and mvm->mutex. Will be handled with the wiphy_work queue infra * instead of regular work queue. */ enum iwl_rx_handler_context { RX_HANDLER_SYNC, RX_HANDLER_ASYNC_LOCKED, RX_HANDLER_ASYNC_UNLOCKED, RX_HANDLER_ASYNC_LOCKED_WIPHY, }; /** * struct iwl_rx_handlers: handler for FW notification * @cmd_id: command id * @min_size: minimum size to expect for the notification * @context: see &iwl_rx_handler_context * @fn: the function is called when notification is received */ struct iwl_rx_handlers { u16 cmd_id, min_size; enum iwl_rx_handler_context context; void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); }; #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \ { .cmd_id = _cmd_id, .fn = _fn, .context = _context, } #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \ { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, } #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \ { .cmd_id = _cmd_id, .fn = _fn, \ .context = _context, .min_size = sizeof(_struct), } #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \ { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \ .context = _context, .min_size = sizeof(_struct), } /* * Handlers for fw notifications * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME * This list should be in order of frequency for performance purposes. * * The handler can be one from three contexts, see &iwl_rx_handler_context */ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC, struct iwl_mvm_tx_resp), RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC, struct iwl_mvm_ba_notif), RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC, struct iwl_tlc_update_notif), RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, RX_HANDLER_ASYNC_LOCKED_WIPHY, struct iwl_bt_coex_profile_notif), RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, RX_HANDLER_ASYNC_LOCKED), RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, RX_HANDLER_ASYNC_LOCKED), RX_HANDLER_GRP(STATISTICS_GROUP, STATISTICS_OPER_NOTIF, iwl_mvm_handle_rx_system_oper_stats, RX_HANDLER_ASYNC_LOCKED_WIPHY, struct iwl_system_statistics_notif_oper), RX_HANDLER_GRP(STATISTICS_GROUP, STATISTICS_OPER_PART1_NOTIF, iwl_mvm_handle_rx_system_oper_part1_stats, RX_HANDLER_ASYNC_LOCKED, struct iwl_system_statistics_part1_notif_oper), RX_HANDLER_GRP(SYSTEM_GROUP, SYSTEM_STATISTICS_END_NOTIF, iwl_mvm_handle_rx_system_end_stats_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_system_statistics_end_notif), RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID, iwl_mvm_window_status_notif, RX_HANDLER_SYNC, struct iwl_ba_window_status_notif), RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, RX_HANDLER_SYNC, struct iwl_time_event_notif), RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF, iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC, struct iwl_mvm_session_prot_notif), RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif), RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC, struct iwl_mvm_eosp_notification), RX_HANDLER(SCAN_ITERATION_COMPLETE, iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC, struct iwl_lmac_scan_complete_notif), RX_HANDLER(SCAN_OFFLOAD_COMPLETE, iwl_mvm_rx_lmac_scan_complete_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete), RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, RX_HANDLER_SYNC), RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete), RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC, struct iwl_umac_scan_iter_complete_notif), RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, RX_HANDLER_ASYNC_LOCKED_WIPHY, struct iwl_missed_beacons_notif), RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC, struct iwl_error_resp), RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC, struct iwl_uapsd_misbehaving_ap_notif), RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, RX_HANDLER_ASYNC_LOCKED), RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED), RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION, iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC, struct ct_kill_notif), RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_tdls_channel_switch_notif), RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1), RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS, iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED, struct iwl_ftm_responder_stats), RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED), RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF, iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED), RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC, struct iwl_mfu_assert_dump_notif), RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC, struct iwl_stored_beacon_notif_v2), RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC, struct iwl_mu_group_mgmt_notif), RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC, struct iwl_mvm_pm_state_notification), RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF, iwl_mvm_probe_resp_data_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_probe_resp_data_notif), RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF, iwl_mvm_channel_switch_start_notif, RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif), RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF, iwl_mvm_channel_switch_error_notif, RX_HANDLER_ASYNC_UNLOCKED, struct iwl_channel_switch_error_notif), RX_HANDLER_GRP(DATA_PATH_GROUP, ESR_MODE_NOTIF, iwl_mvm_rx_esr_mode_notif, RX_HANDLER_ASYNC_LOCKED_WIPHY, struct iwl_mvm_esr_mode_notif), RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF, iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_datapath_monitor_notif), RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST, iwl_mvm_rx_thermal_dual_chain_req, RX_HANDLER_ASYNC_LOCKED, struct iwl_thermal_dual_chain_request), RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF, iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED, struct iwl_rfi_deactivate_notif), RX_HANDLER_GRP(LEGACY_GROUP, WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION, iwl_mvm_time_sync_msmt_event, RX_HANDLER_SYNC, struct iwl_time_msmt_notify), RX_HANDLER_GRP(LEGACY_GROUP, WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION, iwl_mvm_time_sync_msmt_confirm_event, RX_HANDLER_SYNC, struct iwl_time_msmt_cfm_notify), RX_HANDLER_GRP(MAC_CONF_GROUP, ROC_NOTIF, iwl_mvm_rx_roc_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_roc_notif), RX_HANDLER_GRP(SCAN_GROUP, CHANNEL_SURVEY_NOTIF, iwl_mvm_rx_channel_survey_notif, RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_channel_survey_notif), }; #undef RX_HANDLER #undef RX_HANDLER_GRP /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = { HCMD_NAME(UCODE_ALIVE_NTFY), HCMD_NAME(REPLY_ERROR), HCMD_NAME(ECHO_CMD), HCMD_NAME(INIT_COMPLETE_NOTIF), HCMD_NAME(PHY_CONTEXT_CMD), HCMD_NAME(DBG_CFG), HCMD_NAME(SCAN_CFG_CMD), HCMD_NAME(SCAN_REQ_UMAC), HCMD_NAME(SCAN_ABORT_UMAC), HCMD_NAME(SCAN_COMPLETE_UMAC), HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), HCMD_NAME(ADD_STA_KEY), HCMD_NAME(ADD_STA), HCMD_NAME(REMOVE_STA), HCMD_NAME(TX_CMD), HCMD_NAME(SCD_QUEUE_CFG), HCMD_NAME(TXPATH_FLUSH), HCMD_NAME(MGMT_MCAST_KEY), HCMD_NAME(WEP_KEY), HCMD_NAME(SHARED_MEM_CFG), HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD), HCMD_NAME(MAC_CONTEXT_CMD), HCMD_NAME(TIME_EVENT_CMD), HCMD_NAME(TIME_EVENT_NOTIFICATION), HCMD_NAME(BINDING_CONTEXT_CMD), HCMD_NAME(TIME_QUOTA_CMD), HCMD_NAME(NON_QOS_TX_COUNTER_CMD), HCMD_NAME(LEDS_CMD), HCMD_NAME(LQ_CMD), HCMD_NAME(FW_PAGING_BLOCK_CMD), HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD), HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD), HCMD_NAME(HOT_SPOT_CMD), HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD), HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP), HCMD_NAME(BT_COEX_CI), HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION), HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION), HCMD_NAME(PHY_CONFIGURATION_CMD), HCMD_NAME(CALIB_RES_NOTIF_PHY_DB), HCMD_NAME(PHY_DB_CMD), HCMD_NAME(SCAN_OFFLOAD_COMPLETE), HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), HCMD_NAME(POWER_TABLE_CMD), HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF), HCMD_NAME(NVM_ACCESS_CMD), HCMD_NAME(BEACON_NOTIFICATION), HCMD_NAME(BEACON_TEMPLATE_CMD), HCMD_NAME(TX_ANT_CONFIGURATION_CMD), HCMD_NAME(BT_CONFIG), HCMD_NAME(STATISTICS_CMD), HCMD_NAME(STATISTICS_NOTIFICATION), HCMD_NAME(EOSP_NOTIFICATION), HCMD_NAME(REDUCE_TX_POWER_CMD), HCMD_NAME(MISSED_BEACONS_NOTIFICATION), HCMD_NAME(TDLS_CONFIG_CMD), HCMD_NAME(MAC_PM_POWER_TABLE), HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION), HCMD_NAME(MFUART_LOAD_NOTIFICATION), HCMD_NAME(RSS_CONFIG_CMD), HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC), HCMD_NAME(REPLY_RX_PHY_CMD), HCMD_NAME(REPLY_RX_MPDU_CMD), HCMD_NAME(BAR_FRAME_RELEASE), HCMD_NAME(FRAME_RELEASE), HCMD_NAME(BA_NOTIF), HCMD_NAME(MCC_UPDATE_CMD), HCMD_NAME(MCC_CHUB_UPDATE_CMD), HCMD_NAME(MARKER_CMD), HCMD_NAME(BT_PROFILE_NOTIFICATION), HCMD_NAME(MCAST_FILTER_CMD), HCMD_NAME(REPLY_SF_CFG_CMD), HCMD_NAME(REPLY_BEACON_FILTERING_CMD), HCMD_NAME(D3_CONFIG_CMD), HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD), HCMD_NAME(MATCH_FOUND_NOTIFICATION), HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION), HCMD_NAME(WOWLAN_PATTERNS), HCMD_NAME(WOWLAN_CONFIGURATION), HCMD_NAME(WOWLAN_TSC_RSC_PARAM), HCMD_NAME(WOWLAN_TKIP_PARAM), HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL), HCMD_NAME(WOWLAN_GET_STATUSES), HCMD_NAME(SCAN_ITERATION_COMPLETE), HCMD_NAME(D0I3_END_CMD), HCMD_NAME(LTR_CONFIG), HCMD_NAME(LDBG_CONFIG_CMD), HCMD_NAME(DEBUG_LOG_MSG), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_system_names[] = { HCMD_NAME(SHARED_MEM_CFG_CMD), HCMD_NAME(SOC_CONFIGURATION_CMD), HCMD_NAME(INIT_EXTENDED_CFG_CMD), HCMD_NAME(FW_ERROR_RECOVERY_CMD), HCMD_NAME(RFI_CONFIG_CMD), HCMD_NAME(RFI_GET_FREQ_TABLE_CMD), HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD), HCMD_NAME(SYSTEM_STATISTICS_CMD), HCMD_NAME(SYSTEM_STATISTICS_END_NOTIF), HCMD_NAME(RFI_DEACTIVATE_NOTIF), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = { HCMD_NAME(LOW_LATENCY_CMD), HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD), HCMD_NAME(SESSION_PROTECTION_CMD), HCMD_NAME(CANCEL_CHANNEL_SWITCH_CMD), HCMD_NAME(MAC_CONFIG_CMD), HCMD_NAME(LINK_CONFIG_CMD), HCMD_NAME(STA_CONFIG_CMD), HCMD_NAME(AUX_STA_CMD), HCMD_NAME(STA_REMOVE_CMD), HCMD_NAME(STA_DISABLE_TX_CMD), HCMD_NAME(ROC_CMD), HCMD_NAME(ROC_NOTIF), HCMD_NAME(CHANNEL_SWITCH_ERROR_NOTIF), HCMD_NAME(MISSED_VAP_NOTIF), HCMD_NAME(SESSION_PROTECTION_NOTIF), HCMD_NAME(PROBE_RESPONSE_DATA_NOTIF), HCMD_NAME(CHANNEL_SWITCH_START_NOTIF), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_phy_names[] = { HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE), HCMD_NAME(CTDP_CONFIG_CMD), HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD), HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD), HCMD_NAME(AP_TX_POWER_CONSTRAINTS_CMD), HCMD_NAME(CT_KILL_NOTIFICATION), HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { HCMD_NAME(DQA_ENABLE_CMD), HCMD_NAME(UPDATE_MU_GROUPS_CMD), HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), HCMD_NAME(WNM_PLATFORM_PTM_REQUEST_CMD), HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD), HCMD_NAME(STA_HE_CTXT_CMD), HCMD_NAME(RLC_CONFIG_CMD), HCMD_NAME(RFH_QUEUE_CONFIG_CMD), HCMD_NAME(TLC_MNG_CONFIG_CMD), HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD), HCMD_NAME(SCD_QUEUE_CONFIG_CMD), HCMD_NAME(SEC_KEY_CMD), HCMD_NAME(ESR_MODE_NOTIF), HCMD_NAME(MONITOR_NOTIF), HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST), HCMD_NAME(STA_PM_NOTIF), HCMD_NAME(MU_GROUP_MGMT_NOTIF), HCMD_NAME(RX_QUEUES_NOTIFICATION), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_statistics_names[] = { HCMD_NAME(STATISTICS_OPER_NOTIF), HCMD_NAME(STATISTICS_OPER_PART1_NOTIF), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_debug_names[] = { HCMD_NAME(LMAC_RD_WR), HCMD_NAME(UMAC_RD_WR), HCMD_NAME(HOST_EVENT_CFG), HCMD_NAME(DBGC_SUSPEND_RESUME), HCMD_NAME(BUFFER_ALLOCATION), HCMD_NAME(GET_TAS_STATUS), HCMD_NAME(FW_DUMP_COMPLETE_CMD), HCMD_NAME(FW_CLEAR_BUFFER), HCMD_NAME(MFU_ASSERT_DUMP_NTF), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_scan_names[] = { HCMD_NAME(CHANNEL_SURVEY_NOTIF), HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_location_names[] = { HCMD_NAME(TOF_RANGE_REQ_CMD), HCMD_NAME(TOF_CONFIG_CMD), HCMD_NAME(TOF_RANGE_ABORT_CMD), HCMD_NAME(TOF_RANGE_REQ_EXT_CMD), HCMD_NAME(TOF_RESPONDER_CONFIG_CMD), HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD), HCMD_NAME(TOF_LC_NOTIF), HCMD_NAME(TOF_RESPONDER_STATS), HCMD_NAME(TOF_MCSI_DEBUG_NOTIF), HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION), HCMD_NAME(WOWLAN_INFO_NOTIFICATION), HCMD_NAME(D3_END_NOTIFICATION), HCMD_NAME(STORED_BEACON_NTF), }; /* Please keep this array *SORTED* by hex value. * Access is done through binary search */ static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = { HCMD_NAME(NVM_ACCESS_COMPLETE), HCMD_NAME(NVM_GET_INFO), HCMD_NAME(TAS_CONFIG), }; static const struct iwl_hcmd_arr iwl_mvm_groups[] = { [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names), [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names), [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names), [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names), [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names), [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names), [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names), [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names), [REGULATORY_AND_NVM_GROUP] = HCMD_ARR(iwl_mvm_regulatory_and_nvm_names), [DEBUG_GROUP] = HCMD_ARR(iwl_mvm_debug_names), [STATISTICS_GROUP] = HCMD_ARR(iwl_mvm_statistics_names), }; /* this forward declaration can avoid to export the function */ static void iwl_mvm_async_handlers_wk(struct work_struct *wk); static void iwl_mvm_async_handlers_wiphy_wk(struct wiphy *wiphy, struct wiphy_work *work); static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm) { const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs; u64 dflt_pwr_limit; if (!backoff) return 0; iwl_bios_get_pwr_limit(&mvm->fwrt, &dflt_pwr_limit); while (backoff->pwr) { if (dflt_pwr_limit >= backoff->pwr) return backoff->backoff; backoff++; } return 0; } static void iwl_mvm_tx_unblock_dwork(struct work_struct *work) { struct iwl_mvm *mvm = container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work); struct ieee80211_vif *tx_blocked_vif; struct iwl_mvm_vif *mvmvif; guard(mvm)(mvm); tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, lockdep_is_held(&mvm->mutex)); if (!tx_blocked_vif) return; mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif); iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); } static void iwl_mvm_fwrt_dump_start(void *ctx) { struct iwl_mvm *mvm = ctx; mutex_lock(&mvm->mutex); } static void iwl_mvm_fwrt_dump_end(void *ctx) { struct iwl_mvm *mvm = ctx; mutex_unlock(&mvm->mutex); } static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) { struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; guard(mvm)(mvm); return iwl_mvm_send_cmd(mvm, host_cmd); } static bool iwl_mvm_d3_debug_enable(void *ctx) { return IWL_MVM_D3_DEBUG; } static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = { .dump_start = iwl_mvm_fwrt_dump_start, .dump_end = iwl_mvm_fwrt_dump_end, .send_hcmd = iwl_mvm_fwrt_send_hcmd, .d3_debug_enable = iwl_mvm_d3_debug_enable, }; static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) { struct iwl_trans *trans = mvm->trans; int ret; if (trans->csme_own) { if (WARN(!mvm->mei_registered, "csme is owner, but we aren't registered to iwlmei\n")) goto get_nvm_from_fw; mvm->mei_nvm_data = iwl_mei_get_nvm(); if (mvm->mei_nvm_data) { /* * mvm->mei_nvm_data is set and because of that, * we'll load the NVM from the FW when we'll get * ownership. */ mvm->nvm_data = iwl_parse_mei_nvm_data(trans, trans->cfg, mvm->mei_nvm_data, mvm->fw, mvm->set_tx_ant, mvm->set_rx_ant); return 0; } IWL_ERR(mvm, "Got a NULL NVM from CSME, trying to get it from the device\n"); } get_nvm_from_fw: rtnl_lock(); wiphy_lock(mvm->hw->wiphy); mutex_lock(&mvm->mutex); ret = iwl_trans_start_hw(mvm->trans); if (ret) { mutex_unlock(&mvm->mutex); wiphy_unlock(mvm->hw->wiphy); rtnl_unlock(); return ret; } ret = iwl_run_init_mvm_ucode(mvm); if (ret && ret != -ERFKILL) iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER); if (!ret && iwl_mvm_is_lar_supported(mvm)) { mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; ret = iwl_mvm_init_mcc(mvm); } iwl_mvm_stop_device(mvm); mutex_unlock(&mvm->mutex); wiphy_unlock(mvm->hw->wiphy); rtnl_unlock(); if (ret) IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); /* no longer need this regardless of failure or not */ mvm->fw_product_reset = false; return ret; } static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm) { struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; int ret; iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); ret = iwl_mvm_mac_setup_register(mvm); if (ret) return ret; mvm->hw_registered = true; iwl_mvm_dbgfs_register(mvm); wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, mvm->mei_rfkill_blocked, RFKILL_HARD_BLOCK_NOT_OWNER); iwl_mvm_mei_set_sw_rfkill_state(mvm); return 0; } struct iwl_mvm_frob_txf_data { u8 *buf; size_t buflen; }; static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *key, void *data) { struct iwl_mvm_frob_txf_data *txf = data; u8 keylen, match, matchend; u8 *keydata; size_t i; switch (key->cipher) { case WLAN_CIPHER_SUITE_CCMP: keydata = key->key; keylen = key->keylen; break; case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: case WLAN_CIPHER_SUITE_TKIP: /* * WEP has short keys which might show up in the payload, * and then you can deduce the key, so in this case just * remove all FIFO data. * For TKIP, we don't know the phase 2 keys here, so same. */ memset(txf->buf, 0xBB, txf->buflen); return; default: return; } /* scan for key material and clear it out */ match = 0; for (i = 0; i < txf->buflen; i++) { if (txf->buf[i] != keydata[match]) { match = 0; continue; } match++; if (match == keylen) { memset(txf->buf + i - keylen, 0xAA, keylen); match = 0; } } /* we're dealing with a FIFO, so check wrapped around data */ matchend = match; for (i = 0; match && i < keylen - match; i++) { if (txf->buf[i] != keydata[match]) break; match++; if (match == keylen) { memset(txf->buf, 0xAA, i + 1); memset(txf->buf + txf->buflen - matchend, 0xAA, matchend); break; } } } static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen) { struct iwl_mvm_frob_txf_data txf = { .buf = buf, .buflen = buflen, }; struct iwl_mvm *mvm = ctx; /* embedded key material exists only on old API */ if (iwl_mvm_has_new_tx_api(mvm)) return; rcu_read_lock(); ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf); rcu_read_unlock(); } static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len) { /* we only use wide headers for commands */ struct iwl_cmd_header_wide *hdr = hcmd; unsigned int frob_start = sizeof(*hdr), frob_end = 0; if (len < sizeof(hdr)) return; /* all the commands we care about are in LONG_GROUP */ if (hdr->group_id != LONG_GROUP) return; switch (hdr->cmd) { case WEP_KEY: case WOWLAN_TKIP_PARAM: case WOWLAN_KEK_KCK_MATERIAL: case ADD_STA_KEY: /* * blank out everything here, easier than dealing * with the various versions of the command */ frob_end = INT_MAX; break; case MGMT_MCAST_KEY: frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) != offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk); BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) < offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk)); break; } if (frob_start >= frob_end) return; if (frob_end > len) frob_end = len; memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start); } static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen) { const struct iwl_dump_exclude *excl; struct iwl_mvm *mvm = ctx; int i; switch (mvm->fwrt.cur_fw_img) { case IWL_UCODE_INIT: default: /* not relevant */ return; case IWL_UCODE_REGULAR: case IWL_UCODE_REGULAR_USNIFFER: excl = mvm->fw->dump_excl; break; case IWL_UCODE_WOWLAN: excl = mvm->fw->dump_excl_wowlan; break; } BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) != sizeof(mvm->fw->dump_excl_wowlan)); for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) { u32 start, end; if (!excl[i].addr || !excl[i].size) continue; start = excl[i].addr; end = start + excl[i].size; if (end <= mem_addr || start >= mem_addr + buflen) continue; if (start < mem_addr) start = mem_addr; if (end > mem_addr + buflen) end = mem_addr + buflen; memset((u8 *)mem + start - mem_addr, 0xAA, end - start); } } static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = { .frob_txf = iwl_mvm_frob_txf, .frob_hcmd = iwl_mvm_frob_hcmd, .frob_mem = iwl_mvm_frob_mem, }; #if IS_ENABLED(CONFIG_IWLMEI) static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info) { struct iwl_mvm *mvm = priv; struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info; /* * This is protected by the guarantee that this function will not be * called twice on two different threads */ prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true); curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL); if (!curr_conn_info) return; curr_conn_info->conn_info = *conn_info; rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info); if (prev_conn_info) kfree_rcu(prev_conn_info, rcu_head); } static void iwl_mvm_mei_rfkill(void *priv, bool blocked, bool csme_taking_ownership) { struct iwl_mvm *mvm = priv; if (blocked && !csme_taking_ownership) return; mvm->mei_rfkill_blocked = blocked; if (!mvm->hw_registered) return; wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy, mvm->mei_rfkill_blocked, RFKILL_HARD_BLOCK_NOT_OWNER); } static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden) { struct iwl_mvm *mvm = priv; if (!mvm->hw_registered || !mvm->csme_vif) return; iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden); } #endif static void iwl_mvm_sap_connected_wk(struct work_struct *wk) { struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, sap_connected_wk); int ret; ret = iwl_mvm_start_get_nvm(mvm); if (ret) goto out_free; ret = iwl_mvm_start_post_nvm(mvm); if (ret) goto out_free; return; out_free: IWL_ERR(mvm, "Couldn't get started...\n"); iwl_mei_start_unregister(); iwl_mei_unregister_complete(); iwl_fw_flush_dumps(&mvm->fwrt); iwl_mvm_thermal_exit(mvm); iwl_fw_runtime_free(&mvm->fwrt); iwl_phy_db_free(mvm->phy_db); kfree(mvm->scan_cmd); iwl_trans_op_mode_leave(mvm->trans); kfree(mvm->nvm_data); kfree(mvm->mei_nvm_data); ieee80211_free_hw(mvm->hw); } #if IS_ENABLED(CONFIG_IWLMEI) static void iwl_mvm_mei_sap_connected(void *priv) { struct iwl_mvm *mvm = priv; if (!mvm->hw_registered) schedule_work(&mvm->sap_connected_wk); } static void iwl_mvm_mei_nic_stolen(void *priv) { struct iwl_mvm *mvm = priv; rtnl_lock(); cfg80211_shutdown_all_interfaces(mvm->hw->wiphy); rtnl_unlock(); } static const struct iwl_mei_ops mei_ops = { .me_conn_status = iwl_mvm_me_conn_status, .rfkill = iwl_mvm_mei_rfkill, .roaming_forbidden = iwl_mvm_mei_roaming_forbidden, .sap_connected = iwl_mvm_mei_sap_connected, .nic_stolen = iwl_mvm_mei_nic_stolen, }; #endif static void iwl_mvm_find_link_selection_vif(void *_data, u8 *mac, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); if (ieee80211_vif_is_mld(vif) && mvmvif->authorized) iwl_mvm_select_links(mvmvif->mvm, vif); } static void iwl_mvm_trig_link_selection(struct wiphy *wiphy, struct wiphy_work *wk) { struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, trig_link_selection_wk); mutex_lock(&mvm->mutex); ieee80211_iterate_active_interfaces(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_find_link_selection_vif, NULL); mutex_unlock(&mvm->mutex); } static struct iwl_op_mode * iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, const struct iwl_fw *fw, struct dentry *dbgfs_dir) { struct ieee80211_hw *hw; struct iwl_op_mode *op_mode; struct iwl_mvm *mvm; struct iwl_trans_config trans_cfg = {}; static const u8 no_reclaim_cmds[] = { TX_CMD, }; u32 max_agg; size_t scan_size; u32 min_backoff; struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused; /* * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station * index all over the driver - check that its value corresponds to the * array size. */ BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT_MAX); /******************************** * 1. Allocating and configuring HW data ********************************/ hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + sizeof(struct iwl_mvm), iwl_mvm_has_mld_api(fw) ? &iwl_mvm_mld_hw_ops : &iwl_mvm_hw_ops); if (!hw) return NULL; if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ) max_agg = 512; else max_agg = IEEE80211_MAX_AMPDU_BUF_HE; hw->max_rx_aggregation_subframes = max_agg; if (cfg->max_tx_agg_size) hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; else hw->max_tx_aggregation_subframes = max_agg; op_mode = hw->priv; mvm = IWL_OP_MODE_GET_MVM(op_mode); mvm->dev = trans->dev; mvm->trans = trans; mvm->cfg = cfg; mvm->fw = fw; mvm->hw = hw; iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm, &iwl_mvm_sanitize_ops, mvm, dbgfs_dir); iwl_mvm_get_bios_tables(mvm); iwl_uefi_get_sgom_table(trans, &mvm->fwrt); iwl_uefi_get_step_table(trans); mvm->init_status = 0; if (iwl_mvm_has_new_rx_api(mvm)) { op_mode->ops = &iwl_mvm_ops_mq; trans->rx_mpdu_cmd_hdr_size = (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210) ? sizeof(struct iwl_rx_mpdu_desc) : IWL_RX_DESC_SIZE_V1; } else { op_mode->ops = &iwl_mvm_ops; trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start); if (WARN_ON(trans->num_rx_queues > 1)) goto out_free; } mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0; if (iwl_mvm_has_new_tx_api(mvm)) { /* * If we have the new TX/queue allocation API initialize them * all to invalid numbers. We'll rewrite the ones that we need * later, but that doesn't happen for all of them all of the * time (e.g. P2P Device is optional), and if a dynamic queue * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then * iwl_mvm_is_static_queue() erroneously returns true, and we * might have things getting stuck. */ mvm->aux_queue = IWL_MVM_INVALID_QUEUE; mvm->snif_queue = IWL_MVM_INVALID_QUEUE; mvm->probe_queue = IWL_MVM_INVALID_QUEUE; mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE; } else { mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE; mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE; mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE; mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE; } mvm->sf_state = SF_UNINIT; if (iwl_mvm_has_unified_ucode(mvm)) iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR); else iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT); mvm->drop_bcn_ap_mode = true; mutex_init(&mvm->mutex); spin_lock_init(&mvm->async_handlers_lock); INIT_LIST_HEAD(&mvm->time_event_list); INIT_LIST_HEAD(&mvm->aux_roc_te_list); INIT_LIST_HEAD(&mvm->async_handlers_list); spin_lock_init(&mvm->time_event_lock); INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list); INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list); INIT_LIST_HEAD(&mvm->resp_pasn_list); INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk); INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk); INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk); INIT_LIST_HEAD(&mvm->add_stream_txqs); spin_lock_init(&mvm->add_stream_lock); wiphy_work_init(&mvm->async_handlers_wiphy_wk, iwl_mvm_async_handlers_wiphy_wk); wiphy_work_init(&mvm->trig_link_selection_wk, iwl_mvm_trig_link_selection); init_waitqueue_head(&mvm->rx_sync_waitq); mvm->queue_sync_state = 0; SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); spin_lock_init(&mvm->tcm.lock); INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work); mvm->tcm.ts = jiffies; mvm->tcm.ll_ts = jiffies; mvm->tcm.uapsd_nonagg_ts = jiffies; INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork); mvm->cmd_ver.range_resp = iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF, 5); /* we only support up to version 9 */ if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9)) goto out_free; /* * Populate the state variables that the transport layer needs * to know about. */ trans_cfg.op_mode = op_mode; trans_cfg.no_reclaim_cmds = no_reclaim_cmds; trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); trans_cfg.rx_buf_size = iwl_amsdu_size_to_rxb_size(); trans->wide_cmd_header = true; trans_cfg.bc_table_dword = mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210; trans_cfg.command_groups = iwl_mvm_groups; trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups); trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE; trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; trans_cfg.scd_set_active = true; trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info, driver_data[2]); /* Set a short watchdog for the command queue */ trans_cfg.cmd_q_wdg_timeout = iwl_mvm_get_wd_timeout(mvm, NULL, false, true); snprintf(mvm->hw->wiphy->fw_version, sizeof(mvm->hw->wiphy->fw_version), "%.31s", fw->fw_version); trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE); trans_cfg.queue_alloc_cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, WIDE_ID(DATA_PATH_GROUP, SCD_QUEUE_CONFIG_CMD), 0); mvm->sta_remove_requires_queue_remove = trans_cfg.queue_alloc_cmd_ver > 0; mvm->mld_api_is_used = iwl_mvm_has_mld_api(mvm->fw); /* Configure transport layer */ iwl_trans_configure(mvm->trans, &trans_cfg); trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv; trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg; memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv, sizeof(trans->dbg.conf_tlv)); trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv; trans->iml = mvm->fw->iml; trans->iml_len = mvm->fw->iml_len; /* set up notification wait support */ iwl_notification_wait_init(&mvm->notif_wait); /* Init phy db */ mvm->phy_db = iwl_phy_db_init(trans); if (!mvm->phy_db) { IWL_ERR(mvm, "Cannot init phy_db\n"); goto out_free; } if (iwlwifi_mod_params.nvm_file) mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; else IWL_DEBUG_EEPROM(mvm->trans->dev, "working without external nvm file\n"); scan_size = iwl_mvm_scan_size(mvm); mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); if (!mvm->scan_cmd) goto out_free; mvm->scan_cmd_size = scan_size; /* invalidate ids to prevent accidental removal of sta_id 0 */ mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA; mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA; /* Set EBS as successful as long as not stated otherwise by the FW. */ mvm->last_ebs_successful = true; min_backoff = iwl_mvm_min_backoff(mvm); iwl_mvm_thermal_initialize(mvm, min_backoff); if (!iwl_mvm_has_new_rx_stats_api(mvm)) memset(&mvm->rx_stats_v3, 0, sizeof(struct mvm_statistics_rx_v3)); else memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); iwl_mvm_ftm_initiator_smooth_config(mvm); iwl_mvm_init_time_sync(&mvm->time_sync); mvm->debugfs_dir = dbgfs_dir; #if IS_ENABLED(CONFIG_IWLMEI) mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); #else mvm->mei_registered = false; #endif iwl_mvm_mei_scan_filter_init(&mvm->mei_scan_filter); if (iwl_mvm_start_get_nvm(mvm)) { /* * Getting NVM failed while CSME is the owner, but we are * registered to MEI, we'll get the NVM later when it'll be * possible to get it from CSME. */ if (trans->csme_own && mvm->mei_registered) return op_mode; goto out_thermal_exit; } if (iwl_mvm_start_post_nvm(mvm)) goto out_thermal_exit; return op_mode; out_thermal_exit: iwl_mvm_thermal_exit(mvm); if (mvm->mei_registered) { iwl_mei_start_unregister(); iwl_mei_unregister_complete(); } out_free: iwl_fw_flush_dumps(&mvm->fwrt); iwl_fw_runtime_free(&mvm->fwrt); iwl_phy_db_free(mvm->phy_db); kfree(mvm->scan_cmd); iwl_trans_op_mode_leave(trans); ieee80211_free_hw(mvm->hw); return NULL; } void iwl_mvm_stop_device(struct iwl_mvm *mvm) { lockdep_assert_held(&mvm->mutex); iwl_fw_cancel_timestamp(&mvm->fwrt); clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); iwl_mvm_pause_tcm(mvm, false); iwl_fw_dbg_stop_sync(&mvm->fwrt); iwl_trans_stop_device(mvm->trans); iwl_free_fw_paging(&mvm->fwrt); iwl_fw_dump_conf_clear(&mvm->fwrt); iwl_mvm_mei_device_state(mvm, false); } static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); int i; if (mvm->mei_registered) { rtnl_lock(); iwl_mei_set_netdev(NULL); rtnl_unlock(); iwl_mei_start_unregister(); } /* * After we unregister from mei, the worker can't be scheduled * anymore. */ cancel_work_sync(&mvm->sap_connected_wk); iwl_mvm_leds_exit(mvm); iwl_mvm_thermal_exit(mvm); /* * If we couldn't get ownership on the device and we couldn't * get the NVM from CSME, we haven't registered to mac80211. * In that case, we didn't fail op_mode_start, because we are * waiting for CSME to allow us to get the NVM to register to * mac80211. If that didn't happen, we haven't registered to * mac80211, hence the if below. */ if (mvm->hw_registered) ieee80211_unregister_hw(mvm->hw); kfree(mvm->scan_cmd); kfree(mvm->mcast_filter_cmd); mvm->mcast_filter_cmd = NULL; kfree(mvm->error_recovery_buf); mvm->error_recovery_buf = NULL; iwl_mvm_ptp_remove(mvm); iwl_trans_op_mode_leave(mvm->trans); iwl_phy_db_free(mvm->phy_db); mvm->phy_db = NULL; kfree(mvm->nvm_data); kfree(mvm->mei_nvm_data); kfree(rcu_access_pointer(mvm->csme_conn_info)); kfree(mvm->temp_nvm_data); for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) kfree(mvm->nvm_sections[i].data); kfree(mvm->acs_survey); cancel_delayed_work_sync(&mvm->tcm.work); iwl_fw_runtime_free(&mvm->fwrt); mutex_destroy(&mvm->mutex); if (mvm->mei_registered) iwl_mei_unregister_complete(); ieee80211_free_hw(mvm->hw); } struct iwl_async_handler_entry { struct list_head list; struct iwl_rx_cmd_buffer rxb; enum iwl_rx_handler_context context; void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); }; void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) { struct iwl_async_handler_entry *entry, *tmp; spin_lock_bh(&mvm->async_handlers_lock); list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { iwl_free_rxb(&entry->rxb); list_del(&entry->list); kfree(entry); } spin_unlock_bh(&mvm->async_handlers_lock); } /* * This function receives a bitmap of rx async handler contexts * (&iwl_rx_handler_context) to handle, and runs only them */ static void iwl_mvm_async_handlers_by_context(struct iwl_mvm *mvm, u8 contexts) { struct iwl_async_handler_entry *entry, *tmp; LIST_HEAD(local_list); /* * Sync with Rx path with a lock. Remove all the entries of the * wanted contexts from this list, add them to a local one (lock free), * and then handle them. */ spin_lock_bh(&mvm->async_handlers_lock); list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { if (!(BIT(entry->context) & contexts)) continue; list_del(&entry->list); list_add_tail(&entry->list, &local_list); } spin_unlock_bh(&mvm->async_handlers_lock); list_for_each_entry_safe(entry, tmp, &local_list, list) { if (entry->context != RX_HANDLER_ASYNC_UNLOCKED) mutex_lock(&mvm->mutex); entry->fn(mvm, &entry->rxb); iwl_free_rxb(&entry->rxb); list_del(&entry->list); if (entry->context != RX_HANDLER_ASYNC_UNLOCKED) mutex_unlock(&mvm->mutex); kfree(entry); } } static void iwl_mvm_async_handlers_wiphy_wk(struct wiphy *wiphy, struct wiphy_work *wk) { struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, async_handlers_wiphy_wk); u8 contexts = BIT(RX_HANDLER_ASYNC_LOCKED_WIPHY); iwl_mvm_async_handlers_by_context(mvm, contexts); } static void iwl_mvm_async_handlers_wk(struct work_struct *wk) { struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, async_handlers_wk); u8 contexts = BIT(RX_HANDLER_ASYNC_LOCKED) | BIT(RX_HANDLER_ASYNC_UNLOCKED); iwl_mvm_async_handlers_by_context(mvm, contexts); } static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) { struct iwl_fw_dbg_trigger_tlv *trig; struct iwl_fw_dbg_trigger_cmd *cmds_trig; int i; trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL, FW_DBG_TRIGGER_FW_NOTIF); if (!trig) return; cmds_trig = (void *)trig->data; for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { /* don't collect on CMD 0 */ if (!cmds_trig->cmds[i].cmd_id) break; if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || cmds_trig->cmds[i].group_id != pkt->hdr.group_id) continue; iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, "CMD 0x%02x.%02x received", pkt->hdr.group_id, pkt->hdr.cmd); break; } } static void iwl_mvm_rx_common(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_rx_packet *pkt) { unsigned int pkt_len = iwl_rx_packet_payload_len(pkt); int i; union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data); iwl_mvm_rx_check_trigger(mvm, pkt); /* * Do the notification wait before RX handlers so * even if the RX handler consumes the RXB we have * access to it in the notification wait entry. */ iwl_notification_wait_notify(&mvm->notif_wait, pkt); for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; struct iwl_async_handler_entry *entry; if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) continue; if (IWL_FW_CHECK(mvm, pkt_len < rx_h->min_size, "unexpected notification 0x%04x size %d, need %d\n", rx_h->cmd_id, pkt_len, rx_h->min_size)) return; if (rx_h->context == RX_HANDLER_SYNC) { rx_h->fn(mvm, rxb); return; } entry = kzalloc(sizeof(*entry), GFP_ATOMIC); /* we can't do much... */ if (!entry) return; entry->rxb._page = rxb_steal_page(rxb); entry->rxb._offset = rxb->_offset; entry->rxb._rx_page_order = rxb->_rx_page_order; entry->fn = rx_h->fn; entry->context = rx_h->context; spin_lock(&mvm->async_handlers_lock); list_add_tail(&entry->list, &mvm->async_handlers_list); spin_unlock(&mvm->async_handlers_lock); if (rx_h->context == RX_HANDLER_ASYNC_LOCKED_WIPHY) wiphy_work_queue(mvm->hw->wiphy, &mvm->async_handlers_wiphy_wk); else schedule_work(&mvm->async_handlers_wk); break; } } static void iwl_mvm_rx(struct iwl_op_mode *op_mode, struct napi_struct *napi, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD)) iwl_mvm_rx_rx_phy_cmd(mvm, rxb); else iwl_mvm_rx_common(mvm, rxb, pkt); } void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, struct napi_struct *napi, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0); else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, RX_QUEUES_NOTIFICATION))) iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0); else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE)) iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0); else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0); else iwl_mvm_rx_common(mvm, rxb, pkt); } static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue) { return queue == mvm->aux_queue || queue == mvm->probe_queue || queue == mvm->p2p_dev_queue || queue == mvm->snif_queue; } static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode, int hw_queue, bool start) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); struct ieee80211_sta *sta; struct ieee80211_txq *txq; struct iwl_mvm_txq *mvmtxq; int i; unsigned long tid_bitmap; struct iwl_mvm_sta *mvmsta; u8 sta_id; sta_id = iwl_mvm_has_new_tx_api(mvm) ? mvm->tvqm_info[hw_queue].sta_id : mvm->queue_info[hw_queue].ra_sta_id; if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations)) return; rcu_read_lock(); sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); if (IS_ERR_OR_NULL(sta)) goto out; mvmsta = iwl_mvm_sta_from_mac80211(sta); if (iwl_mvm_is_static_queue(mvm, hw_queue)) { if (!start) ieee80211_stop_queues(mvm->hw); else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST) ieee80211_wake_queues(mvm->hw); goto out; } if (iwl_mvm_has_new_tx_api(mvm)) { int tid = mvm->tvqm_info[hw_queue].txq_tid; tid_bitmap = BIT(tid); } else { tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap; } for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) { int tid = i; if (tid == IWL_MAX_TID_COUNT) tid = IEEE80211_NUM_TIDS; txq = sta->txq[tid]; mvmtxq = iwl_mvm_txq_from_mac80211(txq); if (start) clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); else set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state); if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) { local_bh_disable(); iwl_mvm_mac_itxq_xmit(mvm->hw, txq); local_bh_enable(); } } out: rcu_read_unlock(); } static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) { iwl_mvm_queue_state_change(op_mode, hw_queue, false); } static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) { iwl_mvm_queue_state_change(op_mode, hw_queue, true); } static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm) { wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); } void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) { if (state) set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); else clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); iwl_mvm_set_rfkill_state(mvm); } struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm) { return rcu_dereference_protected(mvm->csme_conn_info, lockdep_is_held(&mvm->mutex)); } static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done); bool unified = iwl_mvm_has_unified_ucode(mvm); if (state) set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); else clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); iwl_mvm_set_rfkill_state(mvm); /* iwl_run_init_mvm_ucode is waiting for results, abort it. */ if (rfkill_safe_init_done) iwl_abort_notification_waits(&mvm->notif_wait); /* * Don't ask the transport to stop the firmware. We'll do it * after cfg80211 takes us down. */ if (unified) return false; /* * Stop the device if we run OPERATIONAL firmware or if we are in the * middle of the calibrations. */ return state && rfkill_safe_init_done; } static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); struct ieee80211_tx_info *info; info = IEEE80211_SKB_CB(skb); iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); ieee80211_free_txskb(mvm->hw, skb); } struct iwl_mvm_reprobe { struct device *dev; struct work_struct work; }; static void iwl_mvm_reprobe_wk(struct work_struct *wk) { struct iwl_mvm_reprobe *reprobe; reprobe = container_of(wk, struct iwl_mvm_reprobe, work); if (device_reprobe(reprobe->dev)) dev_err(reprobe->dev, "reprobe failed!\n"); put_device(reprobe->dev); kfree(reprobe); module_put(THIS_MODULE); } void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) { iwl_abort_notification_waits(&mvm->notif_wait); iwl_dbg_tlv_del_timers(mvm->trans); /* * This is a bit racy, but worst case we tell mac80211 about * a stopped/aborted scan when that was already done which * is not a problem. It is necessary to abort any os scan * here because mac80211 requires having the scan cleared * before restarting. * We'll reset the scan_status to NONE in restart cleanup in * the next start() call from mac80211. If restart isn't called * (no fw restart) scan status will stay busy. */ iwl_mvm_report_scan_aborted(mvm); /* * If we're restarting already, don't cycle restarts. * If INIT fw asserted, it will likely fail again. * If WoWLAN fw asserted, don't restart either, mac80211 * can't recover this since we're already half suspended. */ if (!mvm->fw_restart && fw_error) { iwl_fw_error_collect(&mvm->fwrt, false); } else if (test_bit(IWL_MVM_STATUS_STARTING, &mvm->status)) { IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { struct iwl_mvm_reprobe *reprobe; IWL_ERR(mvm, "Firmware error during reconfiguration - reprobe!\n"); /* * get a module reference to avoid doing this while unloading * anyway and to avoid scheduling a work with code that's * being removed. */ if (!try_module_get(THIS_MODULE)) { IWL_ERR(mvm, "Module is being unloaded - abort\n"); return; } reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); if (!reprobe) { module_put(THIS_MODULE); return; } reprobe->dev = get_device(mvm->trans->dev); INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); schedule_work(&reprobe->work); } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { IWL_ERR(mvm, "HW restart already requested, but not started\n"); } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && mvm->hw_registered && !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { /* This should be first thing before trying to collect any * data to avoid endless loops if any HW error happens while * collecting debug data. */ set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); if (mvm->fw->ucode_capa.error_log_size) { u32 src_size = mvm->fw->ucode_capa.error_log_size; u32 src_addr = mvm->fw->ucode_capa.error_log_addr; u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC); if (recover_buf) { mvm->error_recovery_buf = recover_buf; iwl_trans_read_mem_bytes(mvm->trans, src_addr, recover_buf, src_size); } } iwl_fw_error_collect(&mvm->fwrt, false); if (fw_error && mvm->fw_restart > 0) { mvm->fw_restart--; ieee80211_restart_hw(mvm->hw); } else if (mvm->fwrt.trans->dbg.restart_required) { IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n"); mvm->fwrt.trans->dbg.restart_required = false; ieee80211_restart_hw(mvm->hw); } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) { ieee80211_restart_hw(mvm->hw); } } } static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) && !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE, &mvm->status)) iwl_mvm_dump_nic_error_log(mvm); if (sync) { iwl_fw_error_collect(&mvm->fwrt, true); /* * Currently, the only case for sync=true is during * shutdown, so just stop in this case. If/when that * changes, we need to be a bit smarter here. */ return; } /* * If the firmware crashes while we're already considering it * to be dead then don't ask for a restart, that cannot do * anything useful anyway. */ if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status)) return; iwl_mvm_nic_restart(mvm, false); } static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); WARN_ON(1); iwl_mvm_nic_restart(mvm, true); } static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode, enum iwl_fw_ini_time_point tp_id, union iwl_dbg_tlv_tp_data *tp_data) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data); } static void iwl_op_mode_mvm_device_powered_off(struct iwl_op_mode *op_mode) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); mutex_lock(&mvm->mutex); clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; iwl_mvm_stop_device(mvm); #ifdef CONFIG_PM mvm->fast_resume = false; #endif mutex_unlock(&mvm->mutex); } #define IWL_MVM_COMMON_OPS \ /* these could be differentiated */ \ .queue_full = iwl_mvm_stop_sw_queue, \ .queue_not_full = iwl_mvm_wake_sw_queue, \ .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \ .free_skb = iwl_mvm_free_skb, \ .nic_error = iwl_mvm_nic_error, \ .cmd_queue_full = iwl_mvm_cmd_queue_full, \ .nic_config = iwl_mvm_nic_config, \ /* as we only register one, these MUST be common! */ \ .start = iwl_op_mode_mvm_start, \ .stop = iwl_op_mode_mvm_stop, \ .time_point = iwl_op_mode_mvm_time_point, \ .device_powered_off = iwl_op_mode_mvm_device_powered_off static const struct iwl_op_mode_ops iwl_mvm_ops = { IWL_MVM_COMMON_OPS, .rx = iwl_mvm_rx, }; static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode, struct napi_struct *napi, struct iwl_rx_cmd_buffer *rxb, unsigned int queue) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); struct iwl_rx_packet *pkt = rxb_addr(rxb); u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd); if (unlikely(queue >= mvm->trans->num_rx_queues)) return; if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))) iwl_mvm_rx_frame_release(mvm, napi, rxb, queue); else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP, RX_QUEUES_NOTIFICATION))) iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue); else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD))) iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue); } static const struct iwl_op_mode_ops iwl_mvm_ops_mq = { IWL_MVM_COMMON_OPS, .rx = iwl_mvm_rx_mq, .rx_rss = iwl_mvm_rx_mq_rss, };