| /****************************************************************************** |
| * |
| * 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. |
| * |
| * 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 <ilw@linux.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. |
| * 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 <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); |
| } |
| |
| static |
| void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct iwl_beacon_filter_cmd *cmd) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| if (vif->bss_conf.cqm_rssi_thold) { |
| 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); |
| } |
| |
| int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, bool enable) |
| { |
| 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 = enable; |
| iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, &cmd); |
| iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd); |
| return iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, 0); |
| } |
| |
| 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); |
| } |
| } |
| |
| 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; |
| |
| 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; |
| } |
| } |
| } |
| |
| if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) |
| return; |
| |
| 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 = IWL_UAPSD_MAX_SP; |
| |
| 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; |
| } |
| |
| static void iwl_mvm_binding_iterator(void *_data, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| unsigned long *data = _data; |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| if (!mvmvif->phy_ctxt) |
| return; |
| |
| if (vif->type == NL80211_IFTYPE_STATION || |
| vif->type == NL80211_IFTYPE_AP) |
| __set_bit(mvmvif->phy_ctxt->id, data); |
| } |
| |
| 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); |
| unsigned long phy_ctxt_counter = 0; |
| |
| ieee80211_iterate_active_interfaces_atomic(mvm->hw, |
| IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_binding_iterator, |
| &phy_ctxt_counter); |
| |
| if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid, |
| ETH_ALEN)) |
| return false; |
| |
| if (vif->p2p && |
| !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD)) |
| 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 (hweight8(phy_ctxt_counter) >= 2) |
| return false; |
| |
| return true; |
| } |
| |
| static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| struct iwl_mac_power_cmd *cmd) |
| { |
| struct ieee80211_hw *hw = mvm->hw; |
| struct ieee80211_chanctx_conf *chanctx_conf; |
| struct ieee80211_channel *chan; |
| int dtimper, dtimper_msec; |
| int keep_alive; |
| bool radar_detect = false; |
| 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 = hw->conf.ps_dtim_period ?: 1; |
| |
| /* |
| * 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 |
| */ |
| dtimper_msec = dtimper * vif->bss_conf.beacon_int; |
| keep_alive = max_t(int, 3 * dtimper_msec, |
| MSEC_PER_SEC * POWER_KEEP_ALIVE_PERIOD_SEC); |
| keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_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 || iwl_mvm_vif_low_latency(mvmvif) || |
| !mvmvif->pm_enabled) |
| 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; |
| } |
| |
| /* Check if radar detection is required on current channel */ |
| 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(); |
| |
| /* Check skip over DTIM conditions */ |
| if (!radar_detect && (dtimper <= 10) && |
| (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP || |
| mvm->cur_ucode == IWL_UCODE_WOWLAN)) { |
| cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); |
| cmd->skip_dtim_periods = 3; |
| } |
| |
| if (mvm->cur_ucode != IWL_UCODE_WOWLAN) { |
| 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); |
| } else { |
| 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); |
| } |
| |
| 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 */ |
| } |
| |
| 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); |
| 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); |
| } |
| |
| int iwl_mvm_power_update_device(struct iwl_mvm *mvm) |
| { |
| struct iwl_device_power_cmd cmd = { |
| .flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK), |
| }; |
| |
| 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_CAM_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); |
| } |
| |
| 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)) |
| memset(mvmvif->uapsd_misbehaving_bssid, 0, ETH_ALEN); |
| } |
| |
| 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); |
| } |
| |
| int iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm, |
| struct iwl_rx_cmd_buffer *rxb, |
| struct iwl_device_cmd *cmd) |
| { |
| 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); |
| |
| return 0; |
| } |
| |
| struct iwl_power_vifs { |
| struct ieee80211_vif *bf_vif; |
| 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_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; |
| |
| mvmvif->pm_enabled = false; |
| 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 (mvmvif->phy_ctxt) |
| if (mvmvif->phy_ctxt->id < MAX_PHYS) |
| 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 (mvmvif->phy_ctxt) |
| if (mvmvif->phy_ctxt->id < MAX_PHYS) |
| 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 (mvmvif->phy_ctxt) |
| if (mvmvif->phy_ctxt->id < MAX_PHYS) |
| power_iterator->p2p_active = true; |
| break; |
| |
| case NL80211_IFTYPE_STATION: |
| /* only a single MAC of the same type */ |
| WARN_ON(power_iterator->bss_vif); |
| power_iterator->bss_vif = vif; |
| if (mvmvif->phy_ctxt) |
| if (mvmvif->phy_ctxt->id < MAX_PHYS) |
| power_iterator->bss_active = true; |
| |
| if (mvmvif->bf_data.bf_enabled && |
| !WARN_ON(power_iterator->bf_vif)) |
| power_iterator->bf_vif = vif; |
| |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| 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); |
| |
| /* get vifs info + set pm_enable to false */ |
| ieee80211_iterate_active_interfaces_atomic(mvm->hw, |
| IEEE80211_IFACE_ITER_NORMAL, |
| iwl_mvm_power_iterator, vifs); |
| |
| 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); |
| |
| /* 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) { |
| if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM) |
| 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) && |
| (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)) { |
| if (vifs->bss_active) |
| bss_mvmvif->pm_enabled = true; |
| if (vifs->p2p_active && |
| (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)) |
| 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 && |
| (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM)) { |
| /* share same channel*/ |
| bss_mvmvif->pm_enabled = true; |
| if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM) |
| p2p_mvmvif->pm_enabled = true; |
| } |
| } |
| |
| int iwl_mvm_power_update_mac(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
| { |
| struct iwl_mvm_vif *mvmvif; |
| struct iwl_power_vifs vifs = {}; |
| bool ba_enable; |
| int ret; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| iwl_mvm_power_set_pm(mvm, &vifs); |
| |
| /* disable PS if CAM */ |
| if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM) { |
| mvm->ps_disabled = true; |
| } else { |
| /* don't update device power state unless we add / remove monitor */ |
| if (vifs.monitor_vif) { |
| if (vifs.monitor_active) |
| mvm->ps_disabled = true; |
| ret = iwl_mvm_power_update_device(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.bf_vif) |
| return 0; |
| |
| vif = vifs.bf_vif; |
| mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| ba_enable = !(!mvmvif->pm_enabled || mvm->ps_disabled || |
| !vif->bss_conf.ps || iwl_mvm_vif_low_latency(mvmvif)); |
| |
| return iwl_mvm_update_beacon_abort(mvm, vifs.bf_vif, ba_enable); |
| } |
| |
| #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; |
| } |
| |
| 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); |
| } |
| #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->type != NL80211_IFTYPE_STATION || vif->p2p) |
| return 0; |
| |
| iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd); |
| 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; |
| } |
| |
| 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); |
| } |
| |
| int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| u32 flags) |
| { |
| 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); |
| |
| if (!ret) |
| mvmvif->bf_data.bf_enabled = false; |
| |
| return ret; |
| } |
| |
| 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); |
| if (enable) { |
| /* configure skip over dtim up to 300 msec */ |
| int dtimper = mvm->hw->conf.ps_dtim_period ?: 1; |
| int dtimper_msec = dtimper * vif->bss_conf.beacon_int; |
| |
| if (WARN_ON(!dtimper_msec)) |
| return 0; |
| |
| cmd.skip_dtim_periods = 300 / dtimper_msec; |
| if (cmd.skip_dtim_periods) |
| cmd.flags |= |
| cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); |
| } |
| 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), |
| }; |
| 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; |
| } |
| |
| int iwl_mvm_update_beacon_filter(struct iwl_mvm *mvm, |
| struct ieee80211_vif *vif, |
| bool force, |
| u32 flags) |
| { |
| struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| |
| if (mvmvif != mvm->bf_allowed_vif) |
| return 0; |
| |
| if (!mvmvif->bf_data.bf_enabled) { |
| /* disable beacon filtering explicitly if force is true */ |
| if (force) |
| return iwl_mvm_disable_beacon_filter(mvm, vif, flags); |
| return 0; |
| } |
| |
| return iwl_mvm_enable_beacon_filter(mvm, vif, flags); |
| } |