mac80211: Stop BA session event from device (f41ccd71) · Commits · 戴 / test

include/net/mac80211.h

+17 −0

Original line number	Diff line number	Diff line
		@@ -2969,6 +2969,23 @@ void ieee80211_ready_on_channel(struct ieee80211_hw *hw);
		*/
		void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw);

		/**
		* ieee80211_stop_rx_ba_session - callback to stop existing BA sessions
		*
		* in order not to harm the system performance and user experience, the device
		* may request not to allow any rx ba session and tear down existing rx ba
		* sessions based on system constraints such as periodic BT activity that needs
		* to limit wlan activity (eg.sco or a2dp)."
		* in such cases, the intention is to limit the duration of the rx ppdu and
		* therefore prevent the peer device to use a-mpdu aggregation.
		*
		* @vif: &struct ieee80211_vif pointer from the add_interface callback.
		* @ba_rx_bitmap: Bit map of open rx ba per tid
		* @addr: & to bssid mac address
		*/
		void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap,
		const u8 *addr);

		/* Rate control API */

		/**

+15 −0

Original line number	Diff line number	Diff line
		@@ -100,6 +100,21 @@ void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
		mutex_unlock(&sta->ampdu_mlme.mtx);
		}

		void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap,
		const u8 *addr)
		{
		struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
		struct sta_info *sta = sta_info_get(sdata, addr);
		int i;

		for (i = 0; i < STA_TID_NUM; i++)
		if (ba_rx_bitmap & BIT(i))
		set_bit(i, sta->ampdu_mlme.tid_rx_stop_requested);

		ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work);
		}
		EXPORT_SYMBOL(ieee80211_stop_rx_ba_session);

		/*
		* After accepting the AddBA Request we activated a timer,
		* resetting it after each frame that arrives from the originator.

+6 −0

Original line number	Diff line number	Diff line
		@@ -140,6 +140,12 @@ void ieee80211_ba_session_work(struct work_struct *work)
		sta, tid, WLAN_BACK_RECIPIENT,
		WLAN_REASON_QSTA_TIMEOUT, true);

		if (test_and_clear_bit(tid,
		sta->ampdu_mlme.tid_rx_stop_requested))
		___ieee80211_stop_rx_ba_session(
		sta, tid, WLAN_BACK_RECIPIENT,
		WLAN_REASON_UNSPECIFIED, true);

		tid_tx = sta->ampdu_mlme.tid_start_tx[tid];
		if (tid_tx) {
		/*

+3 −0

Original line number	Diff line number	Diff line
		@@ -158,6 +158,8 @@ struct tid_ampdu_rx {
		* @work: work struct for starting/stopping aggregation
		* @tid_rx_timer_expired: bitmap indicating on which TIDs the
		* RX timer expired until the work for it runs
		* @tid_rx_stop_requested: bitmap indicating which BA sessions per TID the
		* driver requested to close until the work for it runs
		* @mtx: mutex to protect all TX data (except non-NULL assignments
		* to tid_tx[idx], which are protected by the sta spinlock)
		*/
		@@ -166,6 +168,7 @@ struct sta_ampdu_mlme {
		/* rx */
		struct tid_ampdu_rx __rcu *tid_rx[STA_TID_NUM];
		unsigned long tid_rx_timer_expired[BITS_TO_LONGS(STA_TID_NUM)];
		unsigned long tid_rx_stop_requested[BITS_TO_LONGS(STA_TID_NUM)];
		/* tx */
		struct work_struct work;
		struct tid_ampdu_tx __rcu *tid_tx[STA_TID_NUM];