--- zzzz-none-000/linux-3.10.107/drivers/net/wireless/iwlwifi/mvm/ops.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/net/wireless/iwlwifi/mvm/ops.c 2021-02-04 17:41:59.000000000 +0000 @@ -5,7 +5,8 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +31,8 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -61,6 +63,7 @@ * *****************************************************************************/ #include +#include #include #include "iwl-notif-wait.h" @@ -80,22 +83,17 @@ #include "fw-api-scan.h" #include "time-event.h" -/* - * module name, copyright, version, etc. - */ #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" - -#define DRV_VERSION IWLWIFI_VERSION - MODULE_DESCRIPTION(DRV_DESCRIPTION); -MODULE_VERSION(DRV_VERSION); MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); MODULE_LICENSE("GPL"); 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, + .tfd_q_hang_detect = true /* rest of fields are 0 by default */ }; @@ -105,6 +103,10 @@ module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO); MODULE_PARM_DESC(power_scheme, "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); +module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect, + bool, S_IRUGO); +MODULE_PARM_DESC(tfd_q_hang_detect, + "TFD queues hang detection (default: true"); /* * module init and exit functions @@ -142,13 +144,14 @@ struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; u32 reg_val = 0; + u32 phy_config = iwl_mvm_get_phy_config(mvm); - radio_cfg_type = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_TYPE) >> - FW_PHY_CFG_RADIO_TYPE_POS; - radio_cfg_step = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_STEP) >> - FW_PHY_CFG_RADIO_STEP_POS; - radio_cfg_dash = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_DASH) >> - FW_PHY_CFG_RADIO_DASH_POS; + 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; /* SKU control */ reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << @@ -164,8 +167,15 @@ WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); - /* silicon bits */ - reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; + /* + * TODO: Bits 7-8 of CSR in 8000 HW family 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->cfg->device_family != IWL_DEVICE_FAMILY_8000) + reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | @@ -185,20 +195,22 @@ * (PCIe power is lost before PERST# is asserted), causing ME FW * to lose ownership and not being able to obtain it back. */ - 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); + 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); } struct iwl_rx_handlers { - u8 cmd_id; + u16 cmd_id; bool async; - int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, - struct iwl_device_cmd *cmd); + void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); }; #define RX_HANDLER(_cmd_id, _fn, _async) \ { .cmd_id = _cmd_id , .fn = _fn , .async = _async } +#define RX_HANDLER_GRP(_grp, _cmd, _fn, _async) \ + { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .async = _async } /* * Handlers for fw notifications @@ -211,67 +223,101 @@ * called from a worker with mvm->mutex held. */ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { - RX_HANDLER(REPLY_RX_MPDU_CMD, iwl_mvm_rx_rx_mpdu, false), - RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false), RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false), RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false), + + RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true), + RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true), + RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true), + RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION, + iwl_mvm_rx_ant_coupling_notif, true), + RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false), + RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, true), - RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false), - RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false), + RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false), - RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true), - RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, false), + RX_HANDLER(SCAN_ITERATION_COMPLETE, + iwl_mvm_rx_lmac_scan_iter_complete_notif, false), + RX_HANDLER(SCAN_OFFLOAD_COMPLETE, + iwl_mvm_rx_lmac_scan_complete_notif, true), + RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, + false), + RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, + true), + RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, + iwl_mvm_rx_umac_scan_iter_complete_notif, false), - RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false), RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false), + RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, + false), + RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false), + RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, + iwl_mvm_power_uapsd_misbehaving_ap_notif, false), + RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true), + RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE, + iwl_mvm_temp_notif, true), + + RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, + true), + RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false), + RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, true), + }; #undef RX_HANDLER +#undef RX_HANDLER_GRP #define CMD(x) [x] = #x -static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { +static const char *const iwl_mvm_cmd_strings[REPLY_MAX + 1] = { CMD(MVM_ALIVE), CMD(REPLY_ERROR), + CMD(ECHO_CMD), CMD(INIT_COMPLETE_NOTIF), CMD(PHY_CONTEXT_CMD), CMD(MGMT_MCAST_KEY), CMD(TX_CMD), CMD(TXPATH_FLUSH), + CMD(SHARED_MEM_CFG), CMD(MAC_CONTEXT_CMD), CMD(TIME_EVENT_CMD), CMD(TIME_EVENT_NOTIFICATION), CMD(BINDING_CONTEXT_CMD), CMD(TIME_QUOTA_CMD), - CMD(RADIO_VERSION_NOTIFICATION), - CMD(SCAN_REQUEST_CMD), - CMD(SCAN_ABORT_CMD), - CMD(SCAN_START_NOTIFICATION), - CMD(SCAN_RESULTS_NOTIFICATION), - CMD(SCAN_COMPLETE_NOTIFICATION), + CMD(NON_QOS_TX_COUNTER_CMD), + CMD(DC2DC_CONFIG_CMD), CMD(NVM_ACCESS_CMD), CMD(PHY_CONFIGURATION_CMD), CMD(CALIB_RES_NOTIF_PHY_DB), CMD(SET_CALIB_DEFAULT_CMD), - CMD(CALIBRATION_COMPLETE_NOTIFICATION), + CMD(FW_PAGING_BLOCK_CMD), + CMD(ADD_STA_KEY), CMD(ADD_STA), + CMD(FW_GET_ITEM_CMD), CMD(REMOVE_STA), CMD(LQ_CMD), CMD(SCAN_OFFLOAD_CONFIG_CMD), + CMD(MATCH_FOUND_NOTIFICATION), CMD(SCAN_OFFLOAD_REQUEST_CMD), CMD(SCAN_OFFLOAD_ABORT_CMD), + CMD(HOT_SPOT_CMD), CMD(SCAN_OFFLOAD_COMPLETE), CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), + CMD(SCAN_ITERATION_COMPLETE), CMD(POWER_TABLE_CMD), CMD(WEP_KEY), CMD(REPLY_RX_PHY_CMD), CMD(REPLY_RX_MPDU_CMD), CMD(BEACON_NOTIFICATION), CMD(BEACON_TEMPLATE_CMD), + CMD(STATISTICS_CMD), CMD(STATISTICS_NOTIFICATION), + CMD(EOSP_NOTIFICATION), + CMD(REDUCE_TX_POWER_CMD), CMD(TX_ANT_CONFIGURATION_CMD), CMD(D3_CONFIG_CMD), + CMD(D0I3_END_CMD), CMD(PROT_OFFLOAD_CONFIG_CMD), CMD(OFFLOADS_QUERY_CMD), CMD(REMOTE_WAKE_CONFIG_CMD), @@ -282,23 +328,65 @@ CMD(WOWLAN_KEK_KCK_MATERIAL), CMD(WOWLAN_GET_STATUSES), CMD(WOWLAN_TX_POWER_PER_DB), - CMD(NET_DETECT_CONFIG_CMD), - CMD(NET_DETECT_PROFILES_QUERY_CMD), - CMD(NET_DETECT_PROFILES_CMD), - CMD(NET_DETECT_HOTSPOTS_CMD), - CMD(NET_DETECT_HOTSPOTS_QUERY_CMD), + CMD(SCAN_OFFLOAD_PROFILES_QUERY_CMD), + CMD(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD), + CMD(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD), CMD(CARD_STATE_NOTIFICATION), + CMD(MISSED_BEACONS_NOTIFICATION), CMD(BT_COEX_PRIO_TABLE), CMD(BT_COEX_PROT_ENV), CMD(BT_PROFILE_NOTIFICATION), CMD(BT_CONFIG), CMD(MCAST_FILTER_CMD), + CMD(BCAST_FILTER_CMD), + CMD(REPLY_SF_CFG_CMD), + CMD(REPLY_BEACON_FILTERING_CMD), + CMD(CMD_DTS_MEASUREMENT_TRIGGER), + CMD(DTS_MEASUREMENT_NOTIFICATION), + CMD(REPLY_THERMAL_MNG_BACKOFF), + CMD(MAC_PM_POWER_TABLE), CMD(LTR_CONFIG), + CMD(BT_COEX_CI), + CMD(BT_COEX_UPDATE_SW_BOOST), + CMD(BT_COEX_UPDATE_CORUN_LUT), + CMD(BT_COEX_UPDATE_REDUCED_TXP), + CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), + CMD(ANTENNA_COUPLING_NOTIFICATION), + CMD(SCD_QUEUE_CFG), + CMD(SCAN_CFG_CMD), + CMD(SCAN_REQ_UMAC), + CMD(SCAN_ABORT_UMAC), + CMD(SCAN_COMPLETE_UMAC), + CMD(TDLS_CHANNEL_SWITCH_CMD), + CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION), + CMD(TDLS_CONFIG_CMD), + CMD(MCC_UPDATE_CMD), + CMD(SCAN_ITERATION_COMPLETE_UMAC), }; #undef CMD /* this forward declaration can avoid to export the function */ static void iwl_mvm_async_handlers_wk(struct work_struct *wk); +static void iwl_mvm_d0i3_exit_work(struct work_struct *wk); + +static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg) +{ + const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs; + + if (!pwr_tx_backoff) + return 0; + + while (pwr_tx_backoff->pwr) { + if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr) + return pwr_tx_backoff->backoff; + + pwr_tx_backoff++; + } + + return 0; +} + +static void iwl_mvm_fw_error_dump_wk(struct work_struct *work); static struct iwl_op_mode * iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, @@ -312,6 +400,14 @@ TX_CMD, }; int err, scan_size; + u32 min_backoff; + + /* + * We use IWL_MVM_STATION_COUNT 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); /******************************** * 1. Allocating and configuring HW data @@ -322,9 +418,13 @@ if (!hw) return NULL; + if (cfg->max_rx_agg_size) + hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size; + + if (cfg->max_tx_agg_size) + hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; + op_mode = hw->priv; - op_mode->ops = &iwl_mvm_ops; - op_mode->trans = trans; mvm = IWL_OP_MODE_GET_MVM(op_mode); mvm->dev = trans->dev; @@ -333,15 +433,48 @@ mvm->fw = fw; mvm->hw = hw; + if (iwl_mvm_has_new_rx_api(mvm)) { + op_mode->ops = &iwl_mvm_ops_mq; + } else { + op_mode->ops = &iwl_mvm_ops; + + if (WARN_ON(trans->num_rx_queues > 1)) + goto out_free; + } + + mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0; + + mvm->aux_queue = 15; + mvm->first_agg_queue = 16; + mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1; + if (mvm->cfg->base_params->num_of_queues == 16) { + mvm->aux_queue = 11; + mvm->first_agg_queue = 12; + } + mvm->sf_state = SF_UNINIT; + mvm->low_latency_agg_frame_limit = 6; + mvm->cur_ucode = IWL_UCODE_INIT; + mutex_init(&mvm->mutex); + mutex_init(&mvm->d0i3_suspend_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); + spin_lock_init(&mvm->queue_info_lock); 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->sta_drained_wk, iwl_mvm_sta_drained_wk); + INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work); + INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk); + INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); + + spin_lock_init(&mvm->d0i3_tx_lock); + spin_lock_init(&mvm->refs_lock); + skb_queue_head_init(&mvm->d0i3_tx); + init_waitqueue_head(&mvm->d0i3_exit_waitq); SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); @@ -353,19 +486,23 @@ trans_cfg.no_reclaim_cmds = no_reclaim_cmds; trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K; + trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa, + IWL_UCODE_TLV_API_WIDE_CMD_HDR); if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE) trans_cfg.bc_table_dword = true; - if (!iwlwifi_mod_params.wd_disable) - trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout; - else - trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED; - trans_cfg.command_names = iwl_mvm_cmd_strings; trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE; - trans_cfg.cmd_fifo = IWL_MVM_CMD_FIFO; + trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; + trans_cfg.scd_set_active = true; + + trans_cfg.sdio_adma_addr = fw->sdio_adma_addr; + + /* 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), @@ -376,6 +513,11 @@ trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start); + trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv; + trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num; + memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv, + sizeof(trans->dbg_conf_tlv)); + trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv; /* set up notification wait support */ iwl_notification_wait_init(&mvm->notif_wait); @@ -390,29 +532,55 @@ IWL_INFO(mvm, "Detected %s, REV=0x%X\n", mvm->cfg->name, mvm->trans->hw_rev); - err = iwl_trans_start_hw(mvm->trans); - if (err) - goto out_free; + min_backoff = calc_min_backoff(trans, cfg); + iwl_mvm_tt_initialize(mvm, min_backoff); - mutex_lock(&mvm->mutex); - err = iwl_run_init_mvm_ucode(mvm, true); - mutex_unlock(&mvm->mutex); - if (err && !iwlmvm_mod_params.init_dbg) { - IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); + 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"); + + if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name, + "not allowing power-up and not having nvm_file\n")) goto out_free; + + /* + * Even if nvm exists in the nvm_file driver should read again the nvm + * from the nic because there might be entries that exist in the OTP + * and not in the file. + * for nics with no_power_up_nic_in_init: rely completley on nvm_file + */ + if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) { + err = iwl_nvm_init(mvm, false); + if (err) + goto out_free; + } else { + err = iwl_trans_start_hw(mvm->trans); + if (err) + goto out_free; + + mutex_lock(&mvm->mutex); + err = iwl_run_init_mvm_ucode(mvm, true); + if (!err || !iwlmvm_mod_params.init_dbg) + iwl_trans_stop_device(trans); + mutex_unlock(&mvm->mutex); + /* returns 0 if successful, 1 if success but in rfkill */ + if (err < 0 && !iwlmvm_mod_params.init_dbg) { + IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); + goto out_free; + } } - /* Stop the hw after the ALIVE and NVM has been read */ - if (!iwlmvm_mod_params.init_dbg) - iwl_trans_stop_hw(mvm->trans, false); - - scan_size = sizeof(struct iwl_scan_cmd) + - mvm->fw->ucode_capa.max_probe_length + - (MAX_NUM_SCAN_CHANNELS * sizeof(struct iwl_scan_channel)); + scan_size = iwl_mvm_scan_size(mvm); + mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); if (!mvm->scan_cmd) goto out_free; + /* Set EBS as successful as long as not stated otherwise by the FW. */ + mvm->last_ebs_successful = true; + err = iwl_mvm_mac_setup_register(mvm); if (err) goto out_free; @@ -421,15 +589,24 @@ if (err) goto out_unregister; + memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); + + /* rpm starts with a taken ref. only set the appropriate bit here. */ + mvm->refs[IWL_MVM_REF_UCODE_DOWN] = 1; + + iwl_mvm_tof_init(mvm); + return op_mode; out_unregister: ieee80211_unregister_hw(mvm->hw); iwl_mvm_leds_exit(mvm); out_free: + flush_delayed_work(&mvm->fw_dump_wk); iwl_phy_db_free(mvm->phy_db); kfree(mvm->scan_cmd); - iwl_trans_stop_hw(trans, true); + if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name) + iwl_trans_op_mode_leave(trans); ieee80211_free_hw(mvm->hw); return NULL; } @@ -441,27 +618,42 @@ iwl_mvm_leds_exit(mvm); + iwl_mvm_tt_exit(mvm); + ieee80211_unregister_hw(mvm->hw); kfree(mvm->scan_cmd); + kfree(mvm->mcast_filter_cmd); + mvm->mcast_filter_cmd = NULL; + +#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS) + kfree(mvm->d3_resume_sram); + if (mvm->nd_config) { + kfree(mvm->nd_config->match_sets); + kfree(mvm->nd_config->scan_plans); + kfree(mvm->nd_config); + mvm->nd_config = NULL; + } +#endif - iwl_trans_stop_hw(mvm->trans, true); + iwl_trans_op_mode_leave(mvm->trans); iwl_phy_db_free(mvm->phy_db); mvm->phy_db = NULL; iwl_free_nvm_data(mvm->nvm_data); - for (i = 0; i < NVM_NUM_OF_SECTIONS; i++) + for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) kfree(mvm->nvm_sections[i].data); + iwl_mvm_tof_clean(mvm); + ieee80211_free_hw(mvm->hw); } struct iwl_async_handler_entry { struct list_head list; struct iwl_rx_cmd_buffer rxb; - int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, - struct iwl_device_cmd *cmd); + void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); }; void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) @@ -498,9 +690,7 @@ spin_unlock_bh(&mvm->async_handlers_lock); list_for_each_entry_safe(entry, tmp, &local_list, list) { - if (entry->fn(mvm, &entry->rxb, NULL)) - IWL_WARN(mvm, - "returned value from ASYNC handlers are ignored\n"); + entry->fn(mvm, &entry->rxb); iwl_free_rxb(&entry->rxb); list_del(&entry->list); kfree(entry); @@ -508,13 +698,45 @@ mutex_unlock(&mvm->mutex); } -static int iwl_mvm_rx_dispatch(struct iwl_op_mode *op_mode, - struct iwl_rx_cmd_buffer *rxb, - struct iwl_device_cmd *cmd) +static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, + struct iwl_rx_packet *pkt) { - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); - u8 i; + struct iwl_fw_dbg_trigger_tlv *trig; + struct iwl_fw_dbg_trigger_cmd *cmds_trig; + int i; + + if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF)) + return; + + trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF); + cmds_trig = (void *)trig->data; + + if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig)) + return; + + 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_mvm_fw_dbg_collect_trig(mvm, 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) +{ + int i; + + iwl_mvm_rx_check_trigger(mvm, pkt); /* * Do the notification wait before RX handlers so @@ -527,16 +749,18 @@ const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; struct iwl_async_handler_entry *entry; - if (rx_h->cmd_id != pkt->hdr.cmd) + if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) continue; - if (!rx_h->async) - return rx_h->fn(mvm, rxb, cmd); + if (!rx_h->async) { + rx_h->fn(mvm, rxb); + return; + } entry = kzalloc(sizeof(*entry), GFP_ATOMIC); /* we can't do much... */ if (!entry) - return 0; + return; entry->rxb._page = rxb_steal_page(rxb); entry->rxb._offset = rxb->_offset; @@ -548,59 +772,119 @@ schedule_work(&mvm->async_handlers_wk); break; } +} - return 0; +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); + + if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD)) + iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); + else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD) + iwl_mvm_rx_rx_phy_cmd(mvm, rxb); + else + iwl_mvm_rx_common(mvm, rxb, pkt); +} + +static 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); + + if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD)) + iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); + else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD) + iwl_mvm_rx_rx_phy_cmd(mvm, rxb); + else + iwl_mvm_rx_common(mvm, rxb, pkt); } static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); - int mq = mvm->queue_to_mac80211[queue]; + unsigned long mq; + int q; - if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE)) - return; + spin_lock_bh(&mvm->queue_info_lock); + mq = mvm->queue_info[queue].hw_queue_to_mac80211; + spin_unlock_bh(&mvm->queue_info_lock); - if (atomic_inc_return(&mvm->queue_stop_count[mq]) > 1) { - IWL_DEBUG_TX_QUEUES(mvm, - "queue %d (mac80211 %d) already stopped\n", - queue, mq); + if (WARN_ON_ONCE(!mq)) return; - } - set_bit(mq, &mvm->transport_queue_stop); - ieee80211_stop_queue(mvm->hw, mq); + for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) { + if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) { + IWL_DEBUG_TX_QUEUES(mvm, + "queue %d (mac80211 %d) already stopped\n", + queue, q); + continue; + } + + ieee80211_stop_queue(mvm->hw, q); + } } static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); - int mq = mvm->queue_to_mac80211[queue]; + unsigned long mq; + int q; - if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE)) - return; + spin_lock_bh(&mvm->queue_info_lock); + mq = mvm->queue_info[queue].hw_queue_to_mac80211; + spin_unlock_bh(&mvm->queue_info_lock); - if (atomic_dec_return(&mvm->queue_stop_count[mq]) > 0) { - IWL_DEBUG_TX_QUEUES(mvm, - "queue %d (mac80211 %d) already awake\n", - queue, mq); + if (WARN_ON_ONCE(!mq)) return; + + for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) { + if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) { + IWL_DEBUG_TX_QUEUES(mvm, + "queue %d (mac80211 %d) still stopped\n", + queue, q); + continue; + } + + ieee80211_wake_queue(mvm->hw, q); } +} - clear_bit(mq, &mvm->transport_queue_stop); +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); - ieee80211_wake_queue(mvm->hw, mq); + wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); } -static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) +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 calibrating = ACCESS_ONCE(mvm->calibrating); if (state) set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); else clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); - wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); + wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); + + /* iwl_run_init_mvm_ucode is waiting for results, abort it */ + if (calibrating) + iwl_abort_notification_waits(&mvm->notif_wait); + + /* + * Stop the device if we run OPERATIONAL firmware or if we are in the + * middle of the calibrations. + */ + return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating); } static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) @@ -613,37 +897,109 @@ ieee80211_free_txskb(mvm->hw, skb); } -static void iwl_mvm_nic_restart(struct iwl_mvm *mvm) +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"); + kfree(reprobe); + module_put(THIS_MODULE); +} + +static void iwl_mvm_fw_error_dump_wk(struct work_struct *work) +{ + struct iwl_mvm *mvm = + container_of(work, struct iwl_mvm, fw_dump_wk.work); + + if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT)) + return; + + mutex_lock(&mvm->mutex); + + /* stop recording */ + if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) { + iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100); + } else { + iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0); + /* wait before we collect the data till the DBGC stop */ + udelay(100); + } + + iwl_mvm_fw_error_dump(mvm); + + /* start recording again if the firmware is not crashed */ + WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) && + mvm->fw->dbg_dest_tlv && + iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf)); + + mutex_unlock(&mvm->mutex); + + iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT); +} + +void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) { iwl_abort_notification_waits(&mvm->notif_wait); /* + * 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 (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { - IWL_ERR(mvm, "Firmware error during reconfiguration! Abort.\n"); - } else if (mvm->cur_ucode == IWL_UCODE_REGULAR && - iwlwifi_mod_params.restart_fw) { + if (!mvm->restart_fw && fw_error) { + iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert, + NULL); + } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, + &mvm->status)) { + struct iwl_mvm_reprobe *reprobe; + + IWL_ERR(mvm, + "Firmware error during reconfiguration - reprobe!\n"); + /* - * This is a bit racy, but worst case we tell mac80211 about - * a stopped/aborted (sched) scan when that was already done - * which is not a problem. It is necessary to abort any 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. + * get a module reference to avoid doing this while unloading + * anyway and to avoid scheduling a work with code that's + * being removed. */ - switch (mvm->scan_status) { - case IWL_MVM_SCAN_NONE: - break; - case IWL_MVM_SCAN_OS: - ieee80211_scan_completed(mvm->hw, true); - break; + 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 = mvm->trans->dev; + INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); + schedule_work(&reprobe->work); + } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) { + /* don't let the transport/FW power down */ + iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); + + if (fw_error && mvm->restart_fw > 0) + mvm->restart_fw--; ieee80211_restart_hw(mvm->hw); } } @@ -654,7 +1010,7 @@ iwl_mvm_dump_nic_error_log(mvm); - iwl_mvm_nic_restart(mvm); + iwl_mvm_nic_restart(mvm, true); } static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) @@ -662,18 +1018,417 @@ struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); WARN_ON(1); - iwl_mvm_nic_restart(mvm); + iwl_mvm_nic_restart(mvm, true); +} + +struct iwl_d0i3_iter_data { + struct iwl_mvm *mvm; + u8 ap_sta_id; + u8 vif_count; + u8 offloading_tid; + bool disable_offloading; +}; + +static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_d0i3_iter_data *iter_data) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct ieee80211_sta *ap_sta; + struct iwl_mvm_sta *mvmsta; + u32 available_tids = 0; + u8 tid; + + if (WARN_ON(vif->type != NL80211_IFTYPE_STATION || + mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) + return false; + + ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]); + if (IS_ERR_OR_NULL(ap_sta)) + return false; + + mvmsta = iwl_mvm_sta_from_mac80211(ap_sta); + spin_lock_bh(&mvmsta->lock); + for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { + struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; + + /* + * in case of pending tx packets, don't use this tid + * for offloading in order to prevent reuse of the same + * qos seq counters. + */ + if (iwl_mvm_tid_queued(tid_data)) + continue; + + if (tid_data->state != IWL_AGG_OFF) + continue; + + available_tids |= BIT(tid); + } + spin_unlock_bh(&mvmsta->lock); + + /* + * disallow protocol offloading if we have no available tid + * (with no pending frames and no active aggregation, + * as we don't handle "holes" properly - the scheduler needs the + * frame's seq number and TFD index to match) + */ + if (!available_tids) + return true; + + /* for simplicity, just use the first available tid */ + iter_data->offloading_tid = ffs(available_tids) - 1; + return false; } +static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_d0i3_iter_data *data = _data; + struct iwl_mvm *mvm = data->mvm; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; + + IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr); + if (vif->type != NL80211_IFTYPE_STATION || + !vif->bss_conf.assoc) + return; + + /* + * in case of pending tx packets or active aggregations, + * avoid offloading features in order to prevent reuse of + * the same qos seq counters. + */ + if (iwl_mvm_disallow_offloading(mvm, vif, data)) + data->disable_offloading = true; + + iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags); + iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags); + + /* + * on init/association, mvm already configures POWER_TABLE_CMD + * and REPLY_MCAST_FILTER_CMD, so currently don't + * reconfigure them (we might want to use different + * params later on, though). + */ + data->ap_sta_id = mvmvif->ap_sta_id; + data->vif_count++; +} + +static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm, + struct iwl_wowlan_config_cmd *cmd, + struct iwl_d0i3_iter_data *iter_data) +{ + struct ieee80211_sta *ap_sta; + struct iwl_mvm_sta *mvm_ap_sta; + + if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT) + return; + + rcu_read_lock(); + + ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]); + if (IS_ERR_OR_NULL(ap_sta)) + goto out; + + mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); + cmd->is_11n_connection = ap_sta->ht_cap.ht_supported; + cmd->offloading_tid = iter_data->offloading_tid; + + /* + * The d0i3 uCode takes care of the nonqos counters, + * so configure only the qos seq ones. + */ + iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd); +out: + rcu_read_unlock(); +} + +int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode) +{ + struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; + int ret; + struct iwl_d0i3_iter_data d0i3_iter_data = { + .mvm = mvm, + }; + struct iwl_wowlan_config_cmd wowlan_config_cmd = { + .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME | + IWL_WOWLAN_WAKEUP_BEACON_MISS | + IWL_WOWLAN_WAKEUP_LINK_CHANGE | + IWL_WOWLAN_WAKEUP_BCN_FILTERING), + }; + struct iwl_d3_manager_config d3_cfg_cmd = { + .min_sleep_time = cpu_to_le32(1000), + .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR), + }; + + IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n"); + + set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); + + /* + * iwl_mvm_ref_sync takes a reference before checking the flag. + * so by checking there is no held reference we prevent a state + * in which iwl_mvm_ref_sync continues successfully while we + * configure the firmware to enter d0i3 + */ + if (iwl_mvm_ref_taken(mvm)) { + IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n"); + clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); + wake_up(&mvm->d0i3_exit_waitq); + return 1; + } + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_enter_d0i3_iterator, + &d0i3_iter_data); + if (d0i3_iter_data.vif_count == 1) { + mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id; + mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading; + } else { + WARN_ON_ONCE(d0i3_iter_data.vif_count > 1); + mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; + mvm->d0i3_offloading = false; + } + + /* make sure we have no running tx while configuring the seqno */ + synchronize_net(); + + /* configure wowlan configuration only if needed */ + if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) { + iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, + &d0i3_iter_data); + + ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags, + sizeof(wowlan_config_cmd), + &wowlan_config_cmd); + if (ret) + return ret; + } + + return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, + flags | CMD_MAKE_TRANS_IDLE, + sizeof(d3_cfg_cmd), &d3_cfg_cmd); +} + +static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = _data; + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO; + + IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr); + if (vif->type != NL80211_IFTYPE_STATION || + !vif->bss_conf.assoc) + return; + + iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags); +} + +struct iwl_mvm_wakeup_reason_iter_data { + struct iwl_mvm *mvm; + u32 wakeup_reasons; +}; + +static void iwl_mvm_d0i3_wakeup_reason_iter(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_wakeup_reason_iter_data *data = _data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc && + data->mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) { + if (data->wakeup_reasons & + IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH) + iwl_mvm_connection_loss(data->mvm, vif, "D0i3"); + else + ieee80211_beacon_loss(vif); + } +} + +void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq) +{ + struct ieee80211_sta *sta = NULL; + struct iwl_mvm_sta *mvm_ap_sta; + int i; + bool wake_queues = false; + + lockdep_assert_held(&mvm->mutex); + + spin_lock_bh(&mvm->d0i3_tx_lock); + + if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT) + goto out; + + IWL_DEBUG_RPM(mvm, "re-enqueue packets\n"); + + /* get the sta in order to update seq numbers and re-enqueue skbs */ + sta = rcu_dereference_protected( + mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id], + lockdep_is_held(&mvm->mutex)); + + if (IS_ERR_OR_NULL(sta)) { + sta = NULL; + goto out; + } + + if (mvm->d0i3_offloading && qos_seq) { + /* update qos seq numbers if offloading was enabled */ + mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta); + for (i = 0; i < IWL_MAX_TID_COUNT; i++) { + u16 seq = le16_to_cpu(qos_seq[i]); + /* firmware stores last-used one, we store next one */ + seq += 0x10; + mvm_ap_sta->tid_data[i].seq_number = seq; + } + } +out: + /* re-enqueue (or drop) all packets */ + while (!skb_queue_empty(&mvm->d0i3_tx)) { + struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx); + + if (!sta || iwl_mvm_tx_skb(mvm, skb, sta)) + ieee80211_free_txskb(mvm->hw, skb); + + /* if the skb_queue is not empty, we need to wake queues */ + wake_queues = true; + } + clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); + wake_up(&mvm->d0i3_exit_waitq); + mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; + if (wake_queues) + ieee80211_wake_queues(mvm->hw); + + spin_unlock_bh(&mvm->d0i3_tx_lock); +} + +static void iwl_mvm_d0i3_exit_work(struct work_struct *wk) +{ + struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work); + struct iwl_host_cmd get_status_cmd = { + .id = WOWLAN_GET_STATUSES, + .flags = CMD_HIGH_PRIO | CMD_WANT_SKB, + }; + struct iwl_wowlan_status *status; + int ret; + u32 handled_reasons, wakeup_reasons = 0; + __le16 *qos_seq = NULL; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_send_cmd(mvm, &get_status_cmd); + if (ret) + goto out; + + if (!get_status_cmd.resp_pkt) + goto out; + + status = (void *)get_status_cmd.resp_pkt->data; + wakeup_reasons = le32_to_cpu(status->wakeup_reasons); + qos_seq = status->qos_seq_ctr; + + IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons); + + handled_reasons = IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | + IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; + if (wakeup_reasons & handled_reasons) { + struct iwl_mvm_wakeup_reason_iter_data data = { + .mvm = mvm, + .wakeup_reasons = wakeup_reasons, + }; + + ieee80211_iterate_active_interfaces( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_d0i3_wakeup_reason_iter, &data); + } +out: + iwl_mvm_d0i3_enable_tx(mvm, qos_seq); + + IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n", + wakeup_reasons); + + /* qos_seq might point inside resp_pkt, so free it only now */ + if (get_status_cmd.resp_pkt) + iwl_free_resp(&get_status_cmd); + + /* the FW might have updated the regdomain */ + iwl_mvm_update_changed_regdom(mvm); + + iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK); + mutex_unlock(&mvm->mutex); +} + +int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm) +{ + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE | + CMD_WAKE_UP_TRANS; + int ret; + + IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n"); + + mutex_lock(&mvm->d0i3_suspend_mutex); + if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) { + IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n"); + __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags); + mutex_unlock(&mvm->d0i3_suspend_mutex); + return 0; + } + mutex_unlock(&mvm->d0i3_suspend_mutex); + + ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL); + if (ret) + goto out; + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_exit_d0i3_iterator, + mvm); +out: + schedule_work(&mvm->d0i3_exit_work); + return ret; +} + +int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode) +{ + struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); + + iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK); + return _iwl_mvm_exit_d0i3(mvm); +} + +#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, \ + .enter_d0i3 = iwl_mvm_enter_d0i3, \ + .exit_d0i3 = iwl_mvm_exit_d0i3, \ + /* as we only register one, these MUST be common! */ \ + .start = iwl_op_mode_mvm_start, \ + .stop = iwl_op_mode_mvm_stop + static const struct iwl_op_mode_ops iwl_mvm_ops = { - .start = iwl_op_mode_mvm_start, - .stop = iwl_op_mode_mvm_stop, - .rx = iwl_mvm_rx_dispatch, - .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, + 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); + + iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); +} + +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, };