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path: root/drivers/net/wireless/intel/iwlwifi/mvm/power.c
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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/power.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/power.c959
1 files changed, 959 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/power.c b/drivers/net/wireless/intel/iwlwifi/mvm/power.c
new file mode 100644
index 000000000..f5744162d
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/power.c
@@ -0,0 +1,959 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2012-2014, 2018-2019, 2021 Intel Corporation
+ * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
+ * Copyright (C) 2015-2017 Intel Deutschland GmbH
+ */
+#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)
+{
+ u16 len;
+
+ 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));
+ IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_low is: %d, %d\n",
+ le32_to_cpu(cmd->bf_threshold_absolute_low[0]),
+ le32_to_cpu(cmd->bf_threshold_absolute_low[1]));
+
+ IWL_DEBUG_POWER(mvm, "bf_threshold_absolute_high is: %d, %d\n",
+ le32_to_cpu(cmd->bf_threshold_absolute_high[0]),
+ le32_to_cpu(cmd->bf_threshold_absolute_high[1]));
+
+ if (fw_has_api(&mvm->fw->ucode_capa,
+ IWL_UCODE_TLV_API_BEACON_FILTER_V4))
+ len = sizeof(struct iwl_beacon_filter_cmd);
+ else
+ len = offsetof(struct iwl_beacon_filter_cmd,
+ bf_threshold_absolute_low);
+
+ return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags,
+ len, 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);
+}
+
+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;
+
+ if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ||
+ 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);
+ }
+
+#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 (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
+ 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 =
+ test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
+ 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 (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_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->cfg.assoc)
+ *is_p2p_standalone = false;
+ break;
+
+ default:
+ break;
+ }
+}
+
+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;
+}
+
+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->bss_conf.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;
+}
+
+static void iwl_mvm_power_config_skip_dtim(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct iwl_mac_power_cmd *cmd)
+{
+ 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;
+
+ if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
+ 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);
+}
+
+static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ struct iwl_mac_power_cmd *cmd)
+{
+ 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->cfg.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);
+
+ if (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) {
+ 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 */
+}
+
+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 = 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 (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status) ?
+ mvm->disable_power_off_d3 : mvm->disable_power_off)
+ cmd.flags &=
+ cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
+#endif
+ if (mvm->ext_clock_valid)
+ cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK);
+
+ 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))
+ eth_zero_addr(mvmvif->uapsd_misbehaving_bssid);
+}
+
+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);
+}
+
+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);
+}
+
+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;
+}
+
+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;
+}
+
+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;
+
+ if (!mvmvif->uploaded)
+ return;
+
+ 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;
+ }
+}
+
+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;
+ }
+}
+
+#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)
+{
+ 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);
+ iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd);
+ ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags);
+
+ if (!ret)
+ 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);
+}
+
+static 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_disable_beacon_filter(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ u32 flags)
+{
+ return _iwl_mvm_disable_beacon_filter(mvm, vif, flags);
+}
+
+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;
+}
+
+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 (test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))
+ cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3);
+
+ mvmvif->bf_data.ba_enabled = !(!mvmvif->pm_enabled ||
+ mvm->ps_disabled ||
+ !vif->cfg.ps ||
+ iwl_mvm_vif_low_latency(mvmvif));
+
+ return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0);
+}
+
+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;
+}
+
+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;
+}