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Release 4.11 drivers/net/wireless/intel/iwlwifi/mvm/power.c

/******************************************************************************
 *
 * 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 - 2014 Intel Mobile Communications GmbH
 * Copyright(c) 2015 - 2016 Intel Deutschland 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
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * 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 - 2014 Intel Mobile Communications GmbH
 * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
 * 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/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/etherdevice.h>

#include <net/mac80211.h>

#include "iwl-debug.h"
#include "mvm.h"
#include "iwl-modparams.h"
#include "fw-api-power.h"


#define POWER_KEEP_ALIVE_PERIOD_SEC    25


static int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm, struct iwl_beacon_filter_cmd *cmd, u32 flags) { IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n", le32_to_cpu(cmd->ba_enable_beacon_abort)); IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n", le32_to_cpu(cmd->ba_escape_timer)); IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n", le32_to_cpu(cmd->bf_debug_flag)); IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n", le32_to_cpu(cmd->bf_enable_beacon_filter)); IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n", le32_to_cpu(cmd->bf_energy_delta)); IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n", le32_to_cpu(cmd->bf_escape_timer)); IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n", le32_to_cpu(cmd->bf_roaming_energy_delta)); IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n", le32_to_cpu(cmd->bf_roaming_state)); IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n", le32_to_cpu(cmd->bf_temp_threshold)); IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n", le32_to_cpu(cmd->bf_temp_fast_filter)); IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n", le32_to_cpu(cmd->bf_temp_slow_filter)); return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags, sizeof(struct iwl_beacon_filter_cmd), cmd); }

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Total191100.00%4100.00%


static void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_beacon_filter_cmd *cmd, bool d0i3) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); if (vif->bss_conf.cqm_rssi_thold && !d0i3) { cmd->bf_energy_delta = cpu_to_le32(vif->bss_conf.cqm_rssi_hyst); /* fw uses an absolute value for this */ cmd->bf_roaming_state = cpu_to_le32(-vif->bss_conf.cqm_rssi_thold); } cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled); }

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static void iwl_mvm_power_log(struct iwl_mvm *mvm, struct iwl_mac_power_cmd *cmd) { IWL_DEBUG_POWER(mvm, "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n", cmd->id_and_color, iwlmvm_mod_params.power_scheme, le16_to_cpu(cmd->flags)); IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n", le16_to_cpu(cmd->keep_alive_seconds)); if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) { IWL_DEBUG_POWER(mvm, "Disable power management\n"); return; } IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n", le32_to_cpu(cmd->rx_data_timeout)); IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n", le32_to_cpu(cmd->tx_data_timeout)); if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n", cmd->skip_dtim_periods); if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK)) IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n", cmd->lprx_rssi_threshold); if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) { IWL_DEBUG_POWER(mvm, "uAPSD enabled\n"); IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n", le32_to_cpu(cmd->rx_data_timeout_uapsd)); IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n", le32_to_cpu(cmd->tx_data_timeout_uapsd)); IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid); IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags); IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp); } }

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static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mac_power_cmd *cmd) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); enum ieee80211_ac_numbers ac; bool tid_found = false; #ifdef CONFIG_IWLWIFI_DEBUGFS /* set advanced pm flag with no uapsd ACs to enable ps-poll */ if (mvmvif->dbgfs_pm.use_ps_poll) { cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK); return; } #endif for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) { if (!mvmvif->queue_params[ac].uapsd) continue; if (mvm->cur_ucode != IWL_UCODE_WOWLAN) cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK); cmd->uapsd_ac_flags |= BIT(ac); /* QNDP TID - the highest TID with no admission control */ if (!tid_found && !mvmvif->queue_params[ac].acm) { tid_found = true; switch (ac) { case IEEE80211_AC_VO: cmd->qndp_tid = 6; break; case IEEE80211_AC_VI: cmd->qndp_tid = 5; break; case IEEE80211_AC_BE: cmd->qndp_tid = 0; break; case IEEE80211_AC_BK: cmd->qndp_tid = 1; break; } } } cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK); if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) | BIT(IEEE80211_AC_VI) | BIT(IEEE80211_AC_BE) | BIT(IEEE80211_AC_BK))) { cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL); cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ? cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) : cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW); } cmd->uapsd_max_sp = mvm->hw->uapsd_max_sp_len; if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) { cmd->rx_data_timeout_uapsd = cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT); cmd->tx_data_timeout_uapsd = cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT); } else { cmd->rx_data_timeout_uapsd = cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT); cmd->tx_data_timeout_uapsd = cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT); } if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) { cmd->heavy_tx_thld_packets = IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS; cmd->heavy_rx_thld_packets = IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS; } else { cmd->heavy_tx_thld_packets = IWL_MVM_PS_HEAVY_TX_THLD_PACKETS; cmd->heavy_rx_thld_packets = IWL_MVM_PS_HEAVY_RX_THLD_PACKETS; } cmd->heavy_tx_thld_percentage = IWL_MVM_PS_HEAVY_TX_THLD_PERCENT; cmd->heavy_rx_thld_percentage = IWL_MVM_PS_HEAVY_RX_THLD_PERCENT; }

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static void iwl_mvm_p2p_standalone_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) { bool *is_p2p_standalone = _data; switch (ieee80211_vif_type_p2p(vif)) { case NL80211_IFTYPE_P2P_GO: case NL80211_IFTYPE_AP: *is_p2p_standalone = false; break; case NL80211_IFTYPE_STATION: if (vif->bss_conf.assoc) *is_p2p_standalone = false; break; default: break; } }

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static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid, ETH_ALEN)) return false; /* * Avoid using uAPSD if P2P client is associated to GO that uses * opportunistic power save. This is due to current FW limitation. */ if (vif->p2p && (vif->bss_conf.p2p_noa_attr.oppps_ctwindow & IEEE80211_P2P_OPPPS_ENABLE_BIT)) return false; /* * Avoid using uAPSD if client is in DCM - * low latency issue in Miracast */ if (iwl_mvm_phy_ctx_count(mvm) >= 2) return false; if (vif->p2p) { /* Allow U-APSD only if p2p is stand alone */ bool is_p2p_standalone = true; if (!iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) return false; ieee80211_iterate_active_interfaces_atomic(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_p2p_standalone_iterator, &is_p2p_standalone); if (!is_p2p_standalone) return false; } return true; }

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static bool iwl_mvm_power_is_radar(struct ieee80211_vif *vif) { struct ieee80211_chanctx_conf *chanctx_conf; struct ieee80211_channel *chan; bool radar_detect = false; rcu_read_lock(); chanctx_conf = rcu_dereference(vif->chanctx_conf); WARN_ON(!chanctx_conf); if (chanctx_conf) { chan = chanctx_conf->def.chan; radar_detect = chan->flags & IEEE80211_CHAN_RADAR; } rcu_read_unlock(); return radar_detect; }

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static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mac_power_cmd *cmd, bool host_awake) { int dtimper = vif->bss_conf.dtim_period ?: 1; int skip; /* disable, in case we're supposed to override */ cmd->skip_dtim_periods = 0; cmd->flags &= ~cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); if (iwl_mvm_power_is_radar(vif)) return; if (dtimper >= 10) return; /* TODO: check that multicast wake lock is off */ if (host_awake) { if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_LP) return; skip = 2; } else { int dtimper_tu = dtimper * vif->bss_conf.beacon_int; if (WARN_ON(!dtimper_tu)) return; /* configure skip over dtim up to 306TU - 314 msec */ skip = max_t(u8, 1, 306 / dtimper_tu); } /* the firmware really expects "look at every X DTIMs", so add 1 */ cmd->skip_dtim_periods = 1 + skip; cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); }

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static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mac_power_cmd *cmd, bool host_awake) { int dtimper, bi; int keep_alive; struct iwl_mvm_vif *mvmvif __maybe_unused = iwl_mvm_vif_from_mac80211(vif); cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); dtimper = vif->bss_conf.dtim_period; bi = vif->bss_conf.beacon_int; /* * Regardless of power management state the driver must set * keep alive period. FW will use it for sending keep alive NDPs * immediately after association. Check that keep alive period * is at least 3 * DTIM */ keep_alive = DIV_ROUND_UP(ieee80211_tu_to_usec(3 * dtimper * bi), USEC_PER_SEC); keep_alive = max(keep_alive, POWER_KEEP_ALIVE_PERIOD_SEC); cmd->keep_alive_seconds = cpu_to_le16(keep_alive); if (mvm->ps_disabled) return; cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK); if (!vif->bss_conf.ps || !mvmvif->pm_enabled) return; if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p && (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS) || !IWL_MVM_P2P_LOWLATENCY_PS_ENABLE)) return; cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK); if (vif->bss_conf.beacon_rate && (vif->bss_conf.beacon_rate->bitrate == 10 || vif->bss_conf.beacon_rate->bitrate == 60)) { cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK); cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD; } iwl_mvm_power_config_skip_dtim(mvm, vif, cmd, host_awake); if (!host_awake) { cmd->rx_data_timeout = cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT); cmd->tx_data_timeout = cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT); } else if (iwl_mvm_vif_low_latency(mvmvif) && vif->p2p && fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SHORT_PM_TIMEOUTS)) { cmd->tx_data_timeout = cpu_to_le32(IWL_MVM_SHORT_PS_TX_DATA_TIMEOUT); cmd->rx_data_timeout = cpu_to_le32(IWL_MVM_SHORT_PS_RX_DATA_TIMEOUT); } else { cmd->rx_data_timeout = cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT); cmd->tx_data_timeout = cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT); } if (iwl_mvm_power_allow_uapsd(mvm, vif)) iwl_mvm_power_configure_uapsd(mvm, vif, cmd); #ifdef CONFIG_IWLWIFI_DEBUGFS if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE) cmd->keep_alive_seconds = cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds); if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) { if (mvmvif->dbgfs_pm.skip_over_dtim) cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); else cmd->flags &= cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK); } if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT) cmd->rx_data_timeout = cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout); if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT) cmd->tx_data_timeout = cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout); if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS) cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods; if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) { if (mvmvif->dbgfs_pm.lprx_ena) cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK); else cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK); } if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD) cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold; if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) { if (mvmvif->dbgfs_pm.snooze_ena) cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); else cmd->flags &= cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK); } if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) { u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK; if (mvmvif->dbgfs_pm.uapsd_misbehaving) cmd->flags |= cpu_to_le16(flag); else cmd->flags &= cpu_to_le16(flag); } #endif /* CONFIG_IWLWIFI_DEBUGFS */ }

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Total627100.00%21100.00%


static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { struct iwl_mac_power_cmd cmd = {}; iwl_mvm_power_build_cmd(mvm, vif, &cmd, mvm->cur_ucode != IWL_UCODE_WOWLAN); iwl_mvm_power_log(mvm, &cmd); #ifdef CONFIG_IWLWIFI_DEBUGFS memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd)); #endif return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0, sizeof(cmd), &cmd); }

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Alexander Bondar55.68%333.33%
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int iwl_mvm_power_update_device(struct iwl_mvm *mvm) { struct iwl_device_power_cmd cmd = { .flags = 0, }; if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM) mvm->ps_disabled = true; if (!mvm->ps_disabled) cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK); #ifdef CONFIG_IWLWIFI_DEBUGFS if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 : mvm->disable_power_off) cmd.flags &= cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK); #endif IWL_DEBUG_POWER(mvm, "Sending device power command with flags = 0x%X\n", cmd.flags); return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd), &cmd); }

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void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid, ETH_ALEN)) eth_zero_addr(mvmvif->uapsd_misbehaving_bssid); }

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static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) { u8 *ap_sta_id = _data; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); /* The ap_sta_id is not expected to change during current association * so no explicit protection is needed */ if (mvmvif->ap_sta_id == *ap_sta_id) memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid, ETH_ALEN); }

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void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data; u8 ap_sta_id = le32_to_cpu(notif->sta_id); ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id); }

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struct iwl_power_vifs { struct iwl_mvm *mvm; struct ieee80211_vif *bss_vif; struct ieee80211_vif *p2p_vif; struct ieee80211_vif *ap_vif; struct ieee80211_vif *monitor_vif; bool p2p_active; bool bss_active; bool ap_active; bool monitor_active; };
static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); mvmvif->pm_enabled = false; }

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PersonTokensPropCommitsCommitProp
Luciano Coelho3394.29%150.00%
Alexander Bondar25.71%150.00%
Total35100.00%2100.00%


static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); bool *disable_ps = _data; if (mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX) *disable_ps |= mvmvif->ps_disabled; }

Contributors

PersonTokensPropCommitsCommitProp
Luciano Coelho5496.43%150.00%
Sara Sharon23.57%150.00%
Total56100.00%2100.00%


static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_power_vifs *power_iterator = _data; bool active = mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < NUM_PHY_CTX; switch (ieee80211_vif_type_p2p(vif)) { case NL80211_IFTYPE_P2P_DEVICE: break; case NL80211_IFTYPE_P2P_GO: case NL80211_IFTYPE_AP: /* only a single MAC of the same type */ WARN_ON(power_iterator->ap_vif); power_iterator->ap_vif = vif; if (active) power_iterator->ap_active = true; break; case NL80211_IFTYPE_MONITOR: /* only a single MAC of the same type */ WARN_ON(power_iterator->monitor_vif); power_iterator->monitor_vif = vif; if (active) power_iterator->monitor_active = true; break; case NL80211_IFTYPE_P2P_CLIENT: /* only a single MAC of the same type */ WARN_ON(power_iterator->p2p_vif); power_iterator->p2p_vif = vif; if (active) power_iterator->p2p_active = true; break; case NL80211_IFTYPE_STATION: power_iterator->bss_vif = vif; if (active) power_iterator->bss_active = true; break; default: break; } }

Contributors

PersonTokensPropCommitsCommitProp
Avri Altman6436.99%225.00%
Emmanuel Grumbach5732.95%225.00%
Alexander Bondar3017.34%225.00%
Sara Sharon1910.98%112.50%
Luciano Coelho31.73%112.50%
Total173100.00%8100.00%


static void iwl_mvm_power_set_pm(struct iwl_mvm *mvm, struct iwl_power_vifs *vifs) { struct iwl_mvm_vif *bss_mvmvif = NULL; struct iwl_mvm_vif *p2p_mvmvif = NULL; struct iwl_mvm_vif *ap_mvmvif = NULL; bool client_same_channel = false; bool ap_same_channel = false; lockdep_assert_held(&mvm->mutex); /* set pm_enable to false */ ieee80211_iterate_active_interfaces_atomic(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_power_disable_pm_iterator, NULL); if (vifs->bss_vif) bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif); if (vifs->p2p_vif) p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif); if (vifs->ap_vif) ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif); /* don't allow PM if any TDLS stations exist */ if (iwl_mvm_tdls_sta_count(mvm, NULL)) return; /* enable PM on bss if bss stand alone */ if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) { bss_mvmvif->pm_enabled = true; return; } /* enable PM on p2p if p2p stand alone */ if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) { p2p_mvmvif->pm_enabled = true; return; } if (vifs->bss_active && vifs->p2p_active) client_same_channel = (bss_mvmvif->phy_ctxt->id == p2p_mvmvif->phy_ctxt->id); if (vifs->bss_active && vifs->ap_active) ap_same_channel = (bss_mvmvif->phy_ctxt->id == ap_mvmvif->phy_ctxt->id); /* clients are not stand alone: enable PM if DCM */ if (!(client_same_channel || ap_same_channel)) { if (vifs->bss_active) bss_mvmvif->pm_enabled = true; if (vifs->p2p_active) p2p_mvmvif->pm_enabled = true; return; } /* * There is only one channel in the system and there are only * bss and p2p clients that share it */ if (client_same_channel && !vifs->ap_active) { /* share same channel*/ bss_mvmvif->pm_enabled = true; p2p_mvmvif->pm_enabled = true; } }

Contributors

PersonTokensPropCommitsCommitProp
Avri Altman24383.51%228.57%
Alexander Bondar217.22%228.57%
Emmanuel Grumbach134.47%114.29%
Arik Nemtsov113.78%114.29%
Luciano Coelho31.03%114.29%
Total291100.00%7100.00%

#ifdef CONFIG_IWLWIFI_DEBUGFS
int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm, struct ieee80211_vif *vif, char *buf, int bufsz) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_mac_power_cmd cmd = {}; int pos = 0; mutex_lock(&mvm->mutex); memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd)); mutex_unlock(&mvm->mutex); pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n", iwlmvm_mod_params.power_scheme); pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n", le16_to_cpu(cmd.flags)); pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n", le16_to_cpu(cmd.keep_alive_seconds)); if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) return pos; pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n", (cmd.flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0); pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n", cmd.skip_dtim_periods); if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) { pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n", le32_to_cpu(cmd.rx_data_timeout)); pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n", le32_to_cpu(cmd.tx_data_timeout)); } if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK)) pos += scnprintf(buf+pos, bufsz-pos, "lprx_rssi_threshold = %d\n", cmd.lprx_rssi_threshold); if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) return pos; pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n", le32_to_cpu(cmd.rx_data_timeout_uapsd)); pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n", le32_to_cpu(cmd.tx_data_timeout_uapsd)); pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid); pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n", cmd.uapsd_ac_flags); pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n", cmd.uapsd_max_sp); pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n", cmd.heavy_tx_thld_packets); pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n", cmd.heavy_rx_thld_packets); pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n", cmd.heavy_tx_thld_percentage); pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n", cmd.heavy_rx_thld_percentage); pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n", (cmd.flags & cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ? 1 : 0); if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK))) return pos; pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n", cmd.snooze_interval); pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n", cmd.snooze_window); return pos; }

Contributors

PersonTokensPropCommitsCommitProp
Alexander Bondar54193.92%480.00%
Emmanuel Grumbach356.08%120.00%
Total576100.00%5100.00%


void iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif, struct iwl_beacon_filter_cmd *cmd) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf; if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA) cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta); if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA) cmd->bf_roaming_energy_delta = cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta); if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE) cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state); if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD) cmd->bf_temp_threshold = cpu_to_le32(dbgfs_bf->bf_temp_threshold); if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER) cmd->bf_temp_fast_filter = cpu_to_le32(dbgfs_bf->bf_temp_fast_filter); if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER) cmd->bf_temp_slow_filter = cpu_to_le32(dbgfs_bf->bf_temp_slow_filter); if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG) cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag); if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER) cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer); if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER) cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer); if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT) cmd->ba_enable_beacon_abort = cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort); }

Contributors

PersonTokensPropCommitsCommitProp
Alexander Bondar16673.78%150.00%
Hila Gonen5926.22%150.00%
Total225100.00%2100.00%

#endif
static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_beacon_filter_cmd *cmd, u32 cmd_flags, bool d0i3) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); int ret; if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period || vif->type != NL80211_IFTYPE_STATION || vif->p2p) return 0; iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd, d0i3); if (!d0i3) iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd); ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags); /* don't change bf_enabled in case of temporary d0i3 configuration */ if (!ret && !d0i3) mvmvif->bf_data.bf_enabled = true; return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Hila Gonen5242.62%114.29%
Alexander Bondar2621.31%228.57%
Eliad Peller2419.67%114.29%
Andrei Otcheretianski119.02%114.29%
Avri Altman75.74%114.29%
Gregory Greenman21.64%114.29%
Total122100.00%7100.00%


int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm, struct ieee80211_vif *vif, u32 flags) { struct iwl_beacon_filter_cmd cmd = { IWL_BF_CMD_CONFIG_DEFAULTS, .bf_enable_beacon_filter = cpu_to_le32(1), }; return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false); }

Contributors

PersonTokensPropCommitsCommitProp
Eliad Peller49100.00%1100.00%
Total49100.00%1100.00%


static int _iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm, struct ieee80211_vif *vif, u32 flags, bool d0i3) { struct iwl_beacon_filter_cmd cmd = {}; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); int ret; if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) return 0; ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags); /* don't change bf_enabled in case of temporary d0i3 configuration */ if (!ret && !d0i3) mvmvif->bf_data.bf_enabled = false; return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Hila Gonen4247.73%120.00%
Alexander Bondar3034.09%120.00%
Sara Sharon910.23%120.00%
Eliad Peller55.68%120.00%
Andrei Otcheretianski22.27%120.00%
Total88100.00%5100.00%


int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm, struct ieee80211_vif *vif, u32 flags) { return _iwl_mvm_disable_beacon_filter(mvm, vif, flags, false); }

Contributors

PersonTokensPropCommitsCommitProp
Sara Sharon30100.00%1100.00%
Total30100.00%1100.00%


static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm) { bool disable_ps; int ret; /* disable PS if CAM */ disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM); /* ...or if any of the vifs require PS to be off */ ieee80211_iterate_active_interfaces_atomic(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_power_ps_disabled_iterator, &disable_ps); /* update device power state if it has changed */ if (mvm->ps_disabled != disable_ps) { bool old_ps_disabled = mvm->ps_disabled; mvm->ps_disabled = disable_ps; ret = iwl_mvm_power_update_device(mvm); if (ret) { mvm->ps_disabled = old_ps_disabled; return ret; } } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Luciano Coelho5155.43%360.00%
Emmanuel Grumbach4043.48%120.00%
Arik Nemtsov11.09%120.00%
Total92100.00%5100.00%


static int iwl_mvm_power_set_ba(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_beacon_filter_cmd cmd = { IWL_BF_CMD_CONFIG_DEFAULTS, .bf_enable_beacon_filter = cpu_to_le32(1), }; if (!mvmvif->bf_data.bf_enabled) return 0; if (mvm->cur_ucode == IWL_UCODE_WOWLAN) cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3); mvmvif->bf_data.ba_enabled = !(!mvmvif->pm_enabled || mvm->ps_disabled || !vif->bss_conf.ps || iwl_mvm_vif_low_latency(mvmvif)); return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false); }

Contributors

PersonTokensPropCommitsCommitProp
Luciano Coelho5950.86%250.00%
Avri Altman5749.14%250.00%
Total116100.00%4100.00%


int iwl_mvm_power_update_ps(struct iwl_mvm *mvm) { struct iwl_power_vifs vifs = { .mvm = mvm, }; int ret; lockdep_assert_held(&mvm->mutex); /* get vifs info */ ieee80211_iterate_active_interfaces_atomic(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_power_get_vifs_iterator, &vifs); ret = iwl_mvm_power_set_ps(mvm); if (ret) return ret; if (vifs.bss_vif) return iwl_mvm_power_set_ba(mvm, vifs.bss_vif); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Luciano Coelho6986.25%266.67%
Avri Altman1113.75%133.33%
Total80100.00%3100.00%


int iwl_mvm_power_update_mac(struct iwl_mvm *mvm) { struct iwl_power_vifs vifs = { .mvm = mvm, }; int ret; lockdep_assert_held(&mvm->mutex); /* get vifs info */ ieee80211_iterate_active_interfaces_atomic(mvm->hw, IEEE80211_IFACE_ITER_NORMAL, iwl_mvm_power_get_vifs_iterator, &vifs); iwl_mvm_power_set_pm(mvm, &vifs); ret = iwl_mvm_power_set_ps(mvm); if (ret) return ret; if (vifs.bss_vif) { ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif); if (ret) return ret; } if (vifs.p2p_vif) { ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif); if (ret) return ret; } if (vifs.bss_vif) return iwl_mvm_power_set_ba(mvm, vifs.bss_vif); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Luciano Coelho6949.29%250.00%
Emmanuel Grumbach6042.86%125.00%
Avri Altman117.86%125.00%
Total140100.00%4100.00%


int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif, bool enable, u32 flags) { int ret; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_mac_power_cmd cmd = {}; if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) return 0; if (!vif->bss_conf.assoc) return 0; iwl_mvm_power_build_cmd(mvm, vif, &cmd, !enable); iwl_mvm_power_log(mvm, &cmd); #ifdef CONFIG_IWLWIFI_DEBUGFS memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd)); #endif ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags, sizeof(cmd), &cmd); if (ret) return ret; /* configure beacon filtering */ if (mvmvif != mvm->bf_allowed_vif) return 0; if (enable) { struct iwl_beacon_filter_cmd cmd_bf = { IWL_BF_CMD_CONFIG_D0I3, .bf_enable_beacon_filter = cpu_to_le32(1), }; /* * When beacon storing is supported - disable beacon filtering * altogether - the latest beacon will be sent when exiting d0i3 */ if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_BEACON_STORING)) ret = _iwl_mvm_disable_beacon_filter(mvm, vif, flags, true); else ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf, flags, true); } else { if (mvmvif->bf_data.bf_enabled) ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags); else ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags); } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Eliad Peller19878.88%120.00%
Sara Sharon2911.55%120.00%
Emmanuel Grumbach218.37%120.00%
Johannes Berg31.20%240.00%
Total251100.00%5100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Alexander Bondar223447.41%2131.34%
Avri Altman70414.94%1319.40%
Johannes Berg3727.89%710.45%
Emmanuel Grumbach3557.53%1014.93%
Luciano Coelho3417.24%45.97%
Eliad Peller2795.92%11.49%
Hila Gonen2104.46%22.99%
Andrei Otcheretianski952.02%11.49%
Sara Sharon901.91%22.99%
Arik Nemtsov190.40%34.48%
Gregory Greenman80.17%11.49%
Joe Perches40.08%11.49%
Avraham Stern10.02%11.49%
Total4712100.00%67100.00%
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