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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/net/wireless/intel/iwlwifi/mvm/ops.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/ops.c')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 2038 |
1 files changed, 2038 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c new file mode 100644 index 0000000000..5336a4afde --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -0,0 +1,2038 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* + * Copyright (C) 2012-2014, 2018-2023 Intel Corporation + * Copyright (C) 2013-2015 Intel Mobile Communications GmbH + * Copyright (C) 2016-2017 Intel Deutschland GmbH + */ +#include <linux/module.h> +#include <linux/rtnetlink.h> +#include <linux/vmalloc.h> +#include <net/mac80211.h> + +#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-eeprom-parse.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" + +#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" +MODULE_DESCRIPTION(DRV_DESCRIPTION); +MODULE_LICENSE("GPL"); +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 = { + .power_scheme = IWL_POWER_SCHEME_BPS, + /* rest of fields are 0 by default */ +}; + +module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444); +MODULE_PARM_DESC(init_dbg, + "set to true to debug an ASSERT in INIT fw (default: false"); +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; +} +module_init(iwl_mvm_init); + +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_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.chandef.chan || + vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ || + vif->bss_conf.chandef.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->chandef.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. + */ +enum iwl_rx_handler_context { + RX_HANDLER_SYNC, + RX_HANDLER_ASYNC_LOCKED, + RX_HANDLER_ASYNC_UNLOCKED, +}; + +/** + * 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, 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(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_SYNC, 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, 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), +}; +#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), +}; + +/* 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(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(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(CHANNEL_SWITCH_TIME_EVENT_CMD), + HCMD_NAME(SESSION_PROTECTION_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(SESSION_PROTECTION_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(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(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(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_scan_names[] = { + 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), +}; + +/* this forward declaration can avoid to export the function */ +static void iwl_mvm_async_handlers_wk(struct work_struct *wk); + +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; + + dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev); + + 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; + + mutex_lock(&mvm->mutex); + + tx_blocked_vif = + rcu_dereference_protected(mvm->csa_tx_blocked_vif, + lockdep_is_held(&mvm->mutex)); + + if (!tx_blocked_vif) + goto unlock; + + 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); +unlock: + mutex_unlock(&mvm->mutex); +} + +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 bool iwl_mvm_fwrt_fw_running(void *ctx) +{ + return iwl_mvm_firmware_running(ctx); +} + +static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd) +{ + struct iwl_mvm *mvm = (struct iwl_mvm *)ctx; + int ret; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_send_cmd(mvm, host_cmd); + mutex_unlock(&mvm->mutex); + + return ret; +} + +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, + .fw_running = iwl_mvm_fwrt_fw_running, + .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); + 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); + } + + if (!iwlmvm_mod_params.init_dbg || !ret) + 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); + + 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, +}; + +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); +} + +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); +} + +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, +}; + +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 = IEEE80211_MAX_AMPDU_BUF_EHT; + 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_acpi_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); + + 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); + + switch (iwlwifi_mod_params.amsdu_size) { + case IWL_AMSDU_DEF: + trans_cfg.rx_buf_size = IWL_AMSDU_4K; + break; + case IWL_AMSDU_4K: + trans_cfg.rx_buf_size = IWL_AMSDU_4K; + break; + case IWL_AMSDU_8K: + trans_cfg.rx_buf_size = IWL_AMSDU_8K; + break; + case IWL_AMSDU_12K: + trans_cfg.rx_buf_size = IWL_AMSDU_12K; + break; + default: + pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME, + iwlwifi_mod_params.amsdu_size); + trans_cfg.rx_buf_size = IWL_AMSDU_4K; + } + + 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), + "%s", 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; + } + + IWL_INFO(mvm, "Detected %s, REV=0x%X\n", + mvm->trans->name, mvm->trans->hw_rev); + + 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; + + mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops); + + 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); + + if (iwlmvm_mod_params.init_dbg) + return op_mode; + 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_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); + + 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); +} + +static void iwl_mvm_async_handlers_wk(struct work_struct *wk) +{ + struct iwl_mvm *mvm = + container_of(wk, struct iwl_mvm, async_handlers_wk); + struct iwl_async_handler_entry *entry, *tmp; + LIST_HEAD(local_list); + + /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ + + /* + * Sync with Rx path with a lock. Remove all the entries from this list, + * add them to a local one (lock free), and then handle them. + */ + spin_lock_bh(&mvm->async_handlers_lock); + list_splice_init(&mvm->async_handlers_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_LOCKED) + mutex_lock(&mvm->mutex); + entry->fn(mvm, &entry->rxb); + iwl_free_rxb(&entry->rxb); + list_del(&entry->list); + if (entry->context == RX_HANDLER_ASYNC_LOCKED) + mutex_unlock(&mvm->mutex); + kfree(entry); + } +} + +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); + 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 void iwl_mvm_async_cb(struct iwl_op_mode *op_mode, + const struct iwl_device_cmd *cmd) +{ + struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); + + /* + * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA + * commands that need to block the Tx queues. + */ + iwl_trans_block_txq_ptrs(mvm->trans, false); +} + +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) +{ + bool state = iwl_mvm_is_radio_killed(mvm); + + if (state) + wake_up(&mvm->rx_sync_waitq); + + wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); +} + +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 (mvm->pldr_sync) + return; + + 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); +} + +#define IWL_MVM_COMMON_OPS \ + /* these could be differentiated */ \ + .async_cb = iwl_mvm_async_cb, \ + .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 + +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, +}; |