| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
| * Copyright(c) 2016 - 2017 Intel Deutschland GmbH |
| * Copyright(c) 2018 Intel Corporation |
| * |
| * 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 |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <linuxwifi@intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
| * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
| * Copyright(c) 2016 - 2017 Intel Deutschland GmbH |
| * Copyright(c) 2018 Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #include <linux/module.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 "time-event.h" |
| #include "fw-api.h" |
| #include "fw/api/scan.h" |
| #include "fw/acpi.h" |
| |
| #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" |
| MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| 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 */ |
| }; |
| |
| 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_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect, |
| bool, 0444); |
| MODULE_PARM_DESC(tfd_q_hang_detect, |
| "TFD queues hang detection (default: true"); |
| |
| /* |
| * 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 = 0; |
| 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; |
| |
| /* SKU control */ |
| reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << |
| CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; |
| reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) << |
| CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; |
| |
| /* 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->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_DASH | |
| CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | |
| 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); |
| |
| IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, |
| radio_cfg_step, radio_cfg_dash); |
| |
| /* |
| * 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); |
| } |
| |
| /** |
| * 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 |
| * @context: see &iwl_rx_handler_context |
| * @fn: the function is called when notification is received |
| */ |
| struct iwl_rx_handlers { |
| u16 cmd_id; |
| enum iwl_rx_handler_context context; |
| void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); |
| }; |
| |
| #define RX_HANDLER(_cmd_id, _fn, _context) \ |
| { .cmd_id = _cmd_id, .fn = _fn, .context = _context } |
| #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context) \ |
| { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context } |
| |
| /* |
| * 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), |
| RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC), |
| |
| RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, |
| iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC), |
| |
| RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, |
| RX_HANDLER_ASYNC_LOCKED), |
| RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, |
| RX_HANDLER_ASYNC_LOCKED), |
| RX_HANDLER(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), |
| |
| RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, |
| RX_HANDLER_SYNC), |
| RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, |
| RX_HANDLER_ASYNC_LOCKED), |
| |
| RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC), |
| |
| RX_HANDLER(SCAN_ITERATION_COMPLETE, |
| iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC), |
| RX_HANDLER(SCAN_OFFLOAD_COMPLETE, |
| iwl_mvm_rx_lmac_scan_complete_notif, |
| RX_HANDLER_ASYNC_LOCKED), |
| RX_HANDLER(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), |
| RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, |
| iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC), |
| |
| RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, |
| RX_HANDLER_SYNC), |
| |
| RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, |
| RX_HANDLER_SYNC), |
| |
| RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC), |
| RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, |
| iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC), |
| RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, |
| RX_HANDLER_ASYNC_LOCKED), |
| RX_HANDLER_GRP(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), |
| |
| RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, |
| RX_HANDLER_ASYNC_LOCKED), |
| RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, |
| RX_HANDLER_SYNC), |
| RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, |
| RX_HANDLER_ASYNC_LOCKED), |
| RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF, |
| iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC), |
| RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF, |
| iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC), |
| RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF, |
| iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC), |
| RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, |
| iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC), |
| }; |
| #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(MVM_ALIVE), |
| 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(TOF_CMD), |
| HCMD_NAME(TOF_NOTIFICATION), |
| HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID), |
| HCMD_NAME(ADD_STA_KEY), |
| HCMD_NAME(ADD_STA), |
| HCMD_NAME(REMOVE_STA), |
| HCMD_NAME(FW_GET_ITEM_CMD), |
| 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(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(DC2DC_CONFIG_CMD), |
| 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(CARD_STATE_NOTIFICATION), |
| 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(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(BCAST_FILTER_CMD), |
| 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(OFFLOADS_QUERY_CMD), |
| HCMD_NAME(REMOTE_WAKE_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), |
| }; |
| |
| /* 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), |
| }; |
| |
| /* 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_NOA_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(GEO_TX_POWER_LIMIT), |
| 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(RFH_QUEUE_CONFIG_CMD), |
| 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_debug_names[] = { |
| HCMD_NAME(MFU_ASSERT_DUMP_NTF), |
| }; |
| |
| /* Please keep this array *SORTED* by hex value. |
| * Access is done through binary search |
| */ |
| static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = { |
| 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), |
| }; |
| |
| 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), |
| [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); |
| #ifdef CONFIG_PM |
| static void iwl_mvm_d0i3_exit_work(struct work_struct *wk); |
| #endif |
| |
| 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 int iwl_mvm_fwrt_dump_start(void *ctx) |
| { |
| struct iwl_mvm *mvm = ctx; |
| int ret; |
| |
| ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT); |
| if (ret) |
| return ret; |
| |
| mutex_lock(&mvm->mutex); |
| |
| return 0; |
| } |
| |
| static void iwl_mvm_fwrt_dump_end(void *ctx) |
| { |
| struct iwl_mvm *mvm = ctx; |
| |
| mutex_unlock(&mvm->mutex); |
| |
| iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT); |
| } |
| |
| 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 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, |
| }; |
| |
| 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, |
| }; |
| int err, scan_size; |
| u32 min_backoff; |
| enum iwl_amsdu_size rb_size_default; |
| |
| /* |
| * 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 |
| ********************************/ |
| hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + |
| sizeof(struct iwl_mvm), |
| &iwl_mvm_hw_ops); |
| if (!hw) |
| return NULL; |
| |
| if (cfg->max_rx_agg_size) |
| hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size; |
| else |
| hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
| |
| if (cfg->max_tx_agg_size) |
| hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; |
| else |
| hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
| |
| 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, |
| dbgfs_dir); |
| |
| 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->cfg->device_family >= |
| IWL_DEVICE_FAMILY_22560) ? |
| 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; |
| |
| 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); |
| 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); |
| |
| INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); |
| INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); |
| #ifdef CONFIG_PM |
| INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work); |
| #endif |
| 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); |
| |
| 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); |
| init_waitqueue_head(&mvm->rx_sync_waitq); |
| |
| atomic_set(&mvm->queue_sync_counter, 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); |
| |
| /* |
| * 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); |
| |
| if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) |
| rb_size_default = IWL_AMSDU_2K; |
| else |
| rb_size_default = IWL_AMSDU_4K; |
| |
| switch (iwlwifi_mod_params.amsdu_size) { |
| case IWL_AMSDU_DEF: |
| trans_cfg.rx_buf_size = rb_size_default; |
| 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 = rb_size_default; |
| } |
| |
| trans->wide_cmd_header = true; |
| trans_cfg.bc_table_dword = |
| mvm->trans->cfg->device_family < IWL_DEVICE_FAMILY_22560; |
| |
| 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]); |
| |
| trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD; |
| |
| /* 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); |
| |
| /* 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->cfg->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"); |
| |
| err = iwl_trans_start_hw(mvm->trans); |
| if (err) |
| goto out_free; |
| |
| mutex_lock(&mvm->mutex); |
| iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE); |
| err = iwl_run_init_mvm_ucode(mvm, true); |
| if (test_bit(IWL_FWRT_STATUS_WAIT_ALIVE, &mvm->fwrt.status)) |
| iwl_fw_alive_error_dump(&mvm->fwrt); |
| if (!iwlmvm_mod_params.init_dbg || !err) |
| iwl_mvm_stop_device(mvm); |
| iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE); |
| mutex_unlock(&mvm->mutex); |
| if (err < 0) { |
| IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); |
| goto out_free; |
| } |
| |
| 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; |
| mvm->hw_registered = true; |
| |
| min_backoff = iwl_mvm_min_backoff(mvm); |
| iwl_mvm_thermal_initialize(mvm, min_backoff); |
| |
| err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir); |
| if (err) |
| goto out_unregister; |
| |
| 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)); |
| |
| /* The transport always starts with a taken reference, we can |
| * release it now if d0i3 is supported */ |
| if (iwl_mvm_is_d0i3_supported(mvm)) |
| iwl_trans_unref(mvm->trans); |
| |
| iwl_mvm_tof_init(mvm); |
| |
| iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); |
| |
| return op_mode; |
| |
| out_unregister: |
| if (iwlmvm_mod_params.init_dbg) |
| return op_mode; |
| |
| ieee80211_unregister_hw(mvm->hw); |
| mvm->hw_registered = false; |
| iwl_mvm_leds_exit(mvm); |
| iwl_mvm_thermal_exit(mvm); |
| out_free: |
| iwl_fw_flush_dump(&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; |
| } |
| |
| 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 d0i3 is supported, we have released the reference that |
| * the transport started with, so we should take it back now |
| * that we are leaving. |
| */ |
| if (iwl_mvm_is_d0i3_supported(mvm)) |
| iwl_trans_ref(mvm->trans); |
| |
| iwl_mvm_leds_exit(mvm); |
| |
| iwl_mvm_thermal_exit(mvm); |
| |
| if (mvm->init_status & IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE) { |
| ieee80211_unregister_hw(mvm->hw); |
| mvm->init_status &= ~IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE; |
| } |
| |
| 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); |
| #endif |
| iwl_trans_op_mode_leave(mvm->trans); |
| |
| iwl_phy_db_free(mvm->phy_db); |
| mvm->phy_db = NULL; |
| |
| kfree(mvm->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_mvm_tof_clean(mvm); |
| |
| iwl_fw_runtime_free(&mvm->fwrt); |
| mutex_destroy(&mvm->mutex); |
| mutex_destroy(&mvm->d0i3_suspend_mutex); |
| |
| 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) |
| { |
| int i; |
| |
| 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 (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); |
| } |
| |
| 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); |
| 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, 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(DATA_PATH_GROUP, RX_NO_DATA_NOTIF)) |
| iwl_mvm_rx_monitor_ndp(mvm, napi, rxb, 0); |
| else |
| iwl_mvm_rx_common(mvm, rxb, pkt); |
| } |
| |
| void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq) |
| { |
| int q; |
| |
| if (WARN_ON_ONCE(!mq)) |
| return; |
| |
| 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, |
| "mac80211 %d already stopped\n", q); |
| continue; |
| } |
| |
| ieee80211_stop_queue(mvm->hw, q); |
| } |
| } |
| |
| 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 void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) |
| { |
| struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); |
| unsigned long mq = mvm->hw_queue_to_mac80211[hw_queue]; |
| |
| iwl_mvm_stop_mac_queues(mvm, mq); |
| } |
| |
| void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq) |
| { |
| int q; |
| |
| 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, |
| "mac80211 %d still stopped\n", q); |
| continue; |
| } |
| |
| ieee80211_wake_queue(mvm->hw, q); |
| } |
| } |
| |
| static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue) |
| { |
| struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); |
| unsigned long mq = mvm->hw_queue_to_mac80211[hw_queue]; |
| |
| iwl_mvm_start_mac_queues(mvm, mq); |
| } |
| |
| 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); |
| } |
| |
| 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 = READ_ONCE(mvm->calibrating); |
| |
| 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 (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->fwrt.cur_fw_img != IWL_UCODE_INIT || calibrating); |
| } |
| |
| 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"); |
| 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); |
| |
| /* |
| * 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_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert, |
| false, 0); |
| } 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 = mvm->trans->dev; |
| INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); |
| schedule_work(&reprobe->work); |
| } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR && |
| mvm->hw_registered && |
| !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) { |
| /* don't let the transport/FW power down */ |
| iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); |
| |
| if (fw_error && mvm->fw_restart > 0) |
| mvm->fw_restart--; |
| set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); |
| ieee80211_restart_hw(mvm->hw); |
| } |
| } |
| |
| static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) |
| { |
| struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); |
| |
| if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) |
| iwl_mvm_dump_nic_error_log(mvm); |
| |
| iwl_mvm_nic_restart(mvm, true); |
| } |
| |
| 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); |
| } |
| |
| #ifdef CONFIG_PM |
| struct iwl_d0i3_iter_data { |
| struct iwl_mvm *mvm; |
| struct ieee80211_vif *connected_vif; |
| 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 iwl_mvm_sta *mvmsta; |
| u32 available_tids = 0; |
| u8 tid; |
| |
| if (WARN_ON(vif->type != NL80211_IFTYPE_STATION || |
| mvmvif->ap_sta_id == IWL_MVM_INVALID_STA)) |
| return false; |
| |
| mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id); |
| if (!mvmsta) |
| return false; |
| |
| 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(mvm, 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, |
| false, 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++; |
| |
| /* |
| * no new commands can be sent at this stage, so it's safe |
| * to save the vif pointer during d0i3 entrance. |
| */ |
| data->connected_vif = vif; |
| } |
| |
| 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_INVALID_STA) |
| 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; |
| cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING | |
| ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON; |
| /* |
| * 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), |
| }; |
| 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"); |
| |
| if (WARN_ON_ONCE(mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)) |
| return -EINVAL; |
| |
| 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_INVALID_STA; |
| mvm->d0i3_offloading = false; |
| } |
| |
| iwl_mvm_pause_tcm(mvm, true); |
| /* make sure we have no running tx while configuring the seqno */ |
| synchronize_net(); |
| |
| /* Flush the hw queues, in case something got queued during entry */ |
| /* TODO new tx api */ |
| if (iwl_mvm_has_new_tx_api(mvm)) { |
| WARN_ONCE(1, "d0i3: Need to implement flush TX queue\n"); |
| } else { |
| ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), |
| flags); |
| if (ret) |
| return ret; |
| } |
| |
| /* configure wowlan configuration only if needed */ |
| if (mvm->d0i3_ap_sta_id != IWL_MVM_INVALID_STA) { |
| /* wake on beacons only if beacon storing isn't supported */ |
| if (!fw_has_capa(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_CAPA_BEACON_STORING)) |
| wowlan_config_cmd.wakeup_filter |= |
| cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING); |
| |
| iwl_mvm_wowlan_config_key_params(mvm, |
| d0i3_iter_data.connected_vif, |
| true, flags); |
| |
| 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_d0i3_exit_work_iter_data { |
| struct iwl_mvm *mvm; |
| struct iwl_wowlan_status *status; |
| u32 wakeup_reasons; |
| }; |
| |
| static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_d0i3_exit_work_iter_data *data = _data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| u32 reasons = data->wakeup_reasons; |
| |
| /* consider only the relevant station interface */ |
| if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || |
| data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id) |
| return; |
| |
| if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH) |
| iwl_mvm_connection_loss(data->mvm, vif, "D0i3"); |
| else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON) |
| ieee80211_beacon_loss(vif); |
| else |
| iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status); |
| } |
| |
| 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_INVALID_STA) |
| 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_INVALID_STA; |
| 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_mvm_d0i3_exit_work_iter_data iter_data = { |
| .mvm = mvm, |
| }; |
| |
| struct iwl_wowlan_status *status; |
| u32 wakeup_reasons = 0; |
| __le16 *qos_seq = NULL; |
| |
| mutex_lock(&mvm->mutex); |
| |
| status = iwl_mvm_send_wowlan_get_status(mvm); |
| if (IS_ERR_OR_NULL(status)) { |
| /* set to NULL so we don't need to check before kfree'ing */ |
| status = NULL; |
| goto out; |
| } |
| |
| 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); |
| |
| iter_data.wakeup_reasons = wakeup_reasons; |
| iter_data.status = status; |
| ieee80211_iterate_active_interfaces(mvm->hw, |
| IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_d0i3_exit_work_iter, |
| &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 */ |
| kfree(status); |
| |
| /* the FW might have updated the regdomain */ |
| iwl_mvm_update_changed_regdom(mvm); |
| |
| iwl_mvm_resume_tcm(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"); |
| |
| if (WARN_ON_ONCE(mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR)) |
| return -EINVAL; |
| |
| 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_D0I3_OPS \ |
| .enter_d0i3 = iwl_mvm_enter_d0i3, \ |
| .exit_d0i3 = iwl_mvm_exit_d0i3, |
| #else /* CONFIG_PM */ |
| #define IWL_MVM_D0I3_OPS |
| #endif /* CONFIG_PM */ |
| |
| #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, \ |
| IWL_MVM_D0I3_OPS \ |
| /* 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 = { |
| 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(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, 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, |
| }; |