forked from Minki/linux
iwlwifi: mvm: BT Coex - Correctly enable and treat rssi events
Rssi events were enabled on interfaces using 5.2GHz. Interfaces on 5.2GHz were taken into account while determining the ACK / CTS kill mask. Fix that. The last rssi notified to BT Coex was reset every BT Coex Notification. Since we get a lot of these notifications from the firmware, we reset the rssi all the time which means that the bt_rssi_event is called all the time. Fix that by puting the rssi we pull upon BT Coex notification into iwl_mvm_vif_bf_data.last_bt_coex_event Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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2de13caebc
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@ -490,6 +490,20 @@ struct iwl_bt_iterator_data {
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struct ieee80211_chanctx_conf *secondary;
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};
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static inline
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void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
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struct ieee80211_vif *vif,
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bool enable, int rssi)
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{
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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mvmvif->bf_data.last_bt_coex_event = rssi;
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mvmvif->bf_data.bt_coex_max_thold =
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enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
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mvmvif->bf_data.bt_coex_min_thold =
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enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
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}
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/* must be called under rcu_read_lock */
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static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
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struct ieee80211_vif *vif)
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@ -518,6 +532,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
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if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc)
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iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
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smps_mode);
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iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
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return;
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}
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@ -568,6 +583,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
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if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
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mvm->cfg->bt_shared_single_ant) {
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data->reduced_tx_power = false;
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iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
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return;
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}
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@ -579,9 +595,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
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data->reduced_tx_power = false;
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/* ... and there is no need to get reports on RSSI any more. */
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mvmvif->bf_data.last_bt_coex_event = 0;
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mvmvif->bf_data.bt_coex_max_thold = 0;
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mvmvif->bf_data.bt_coex_min_thold = 0;
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iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
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return;
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}
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@ -614,13 +628,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
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}
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/* Begin to monitor the RSSI: it may influence the reduced Tx power */
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/* reset previous bt coex event tracking */
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mvmvif->bf_data.last_bt_coex_event = 0;
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mvmvif->bf_data.bt_coex_max_thold =
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BT_ENABLE_REDUCED_TXPOWER_THRESHOLD;
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mvmvif->bf_data.bt_coex_min_thold =
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BT_DISABLE_REDUCED_TXPOWER_THRESHOLD;
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iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
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}
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static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
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@ -752,6 +760,18 @@ static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
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struct ieee80211_sta *sta;
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struct iwl_mvm_sta *mvmsta;
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struct ieee80211_chanctx_conf *chanctx_conf;
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rcu_read_lock();
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chanctx_conf = rcu_dereference(vif->chanctx_conf);
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/* If channel context is invalid or not on 2.4GHz - don't count it */
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if (!chanctx_conf ||
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chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
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rcu_read_unlock();
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return;
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}
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rcu_read_unlock();
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if (vif->type != NL80211_IFTYPE_STATION ||
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mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
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return;
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