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51498cf6d8
linux/drivers/net/wireless/iwlwifi/mvm/power.c
Alexander Bondar 51498cf6d8 iwlwifi: mvm: Enable power save on a single P2P client interface 
Enable power save on P2P client interface only if it is the
only bound interface.
Avoid using uAPSD if P2P client is associated to GO that uses
opportunistic power save. This is due to current FW limitation.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-17 19:39:42 +02:00

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/******************************************************************************
*
* 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 - 2013 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 - 2013 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 <linux/init.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
int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm,
struct iwl_beacon_filter_cmd *cmd)
{
int ret;
ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, CMD_SYNC,
sizeof(struct iwl_beacon_filter_cmd), cmd);
if (!ret) {
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 ret;
}
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),
.ba_enable_beacon_abort = cpu_to_le32(enable),
};
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);
}
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_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);
bool allow_uapsd = true;
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 (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM ||
mvm->ps_prevented)
return;
cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
#ifdef CONFIG_IWLWIFI_DEBUGFS
if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
mvmvif->dbgfs_pm.disable_power_off)
cmd->flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
#endif
if (!vif->bss_conf.ps || mvmvif->pm_prevented)
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 (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid,
ETH_ALEN))
allow_uapsd = 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)
allow_uapsd = false;
if (allow_uapsd)
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);
}
#endif /* CONFIG_IWLWIFI_DEBUGFS */
}
static int iwl_mvm_power_mac_update_mode(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
int ret;
bool ba_enable;
struct iwl_mac_power_cmd cmd = {};
if (vif->type != NL80211_IFTYPE_STATION)
return 0;
if (vif->p2p &&
!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS))
return 0;
iwl_mvm_power_build_cmd(mvm, vif, &cmd);
iwl_mvm_power_log(mvm, &cmd);
ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_SYNC,
sizeof(cmd), &cmd);
if (ret)
return ret;
ba_enable = !!(cmd.flags &
cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK));
return iwl_mvm_update_beacon_abort(mvm, vif, ba_enable);
}
static int iwl_mvm_power_mac_disable(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
struct iwl_mac_power_cmd cmd = {};
struct iwl_mvm_vif *mvmvif __maybe_unused =
iwl_mvm_vif_from_mac80211(vif);
if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
return 0;
cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
mvmvif->color));
if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
cmd.flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
#ifdef CONFIG_IWLWIFI_DEBUGFS
if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&
mvmvif->dbgfs_pm.disable_power_off)
cmd.flags &= cpu_to_le16(~POWER_FLAGS_POWER_SAVE_ENA_MSK);
#endif
iwl_mvm_power_log(mvm, &cmd);
return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, CMD_ASYNC,
sizeof(cmd), &cmd);
}
static int _iwl_mvm_power_update_device(struct iwl_mvm *mvm, bool force_disable)
{
struct iwl_device_power_cmd cmd = {
.flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
};
if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
return 0;
if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM ||
force_disable)
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, CMD_SYNC, sizeof(cmd),
&cmd);
}
static int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
{
return _iwl_mvm_power_update_device(mvm, false);
}
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;
}
static void iwl_mvm_power_binding_iterator(void *_data, u8 *mac,
struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm *mvm = _data;
int ret;
mvmvif->pm_prevented = (mvm->bound_vif_cnt <= 1) ? false : true;
ret = iwl_mvm_power_mac_update_mode(mvm, vif);
WARN_ONCE(ret, "Failed to update power parameters on a specific vif\n");
}
static void _iwl_mvm_power_update_binding(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
bool assign)
{
if (vif->type == NL80211_IFTYPE_MONITOR) {
int ret = _iwl_mvm_power_update_device(mvm, assign);
mvm->ps_prevented = assign;
WARN_ONCE(ret, "Failed to update power device state\n");
}
ieee80211_iterate_active_interfaces(mvm->hw,
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_power_binding_iterator,
mvm);
}
#ifdef CONFIG_IWLWIFI_DEBUGFS
static int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
struct ieee80211_vif *vif, char *buf,
int bufsz)
{
struct iwl_mac_power_cmd cmd = {};
int pos = 0;
iwl_mvm_power_build_cmd(mvm, vif, &cmd);
if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off = %d\n",
(cmd.flags &
cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK)) ?
0 : 1);
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
int iwl_mvm_enable_beacon_filter(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),
};
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);
iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd);
ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
if (!ret)
mvmvif->bf_data.bf_enabled = true;
return ret;
}
int iwl_mvm_disable_beacon_filter(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);
int ret;
if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED) ||
vif->type != NL80211_IFTYPE_STATION || vif->p2p)
return 0;
ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd);
if (!ret)
mvmvif->bf_data.bf_enabled = false;
return ret;
}
int iwl_mvm_update_beacon_filter(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
if (!mvmvif->bf_data.bf_enabled)
return 0;
return iwl_mvm_enable_beacon_filter(mvm, vif);
}
const struct iwl_mvm_power_ops pm_mac_ops = {
.power_update_mode = iwl_mvm_power_mac_update_mode,
.power_update_device_mode = iwl_mvm_power_update_device,
.power_disable = iwl_mvm_power_mac_disable,
.power_update_binding = _iwl_mvm_power_update_binding,
#ifdef CONFIG_IWLWIFI_DEBUGFS
.power_dbgfs_read = iwl_mvm_power_mac_dbgfs_read,
#endif
};
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