From 5519541d5a5f19893546883547e2f0f2e5934df7 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 17 Apr 2011 23:28:09 +0200 Subject: ath9k: fix powersave frame filtering/buffering in AP mode This patch fixes a long standing issue of pending packets in the queue being sent (and retransmitted many times) to sleeping stations. This was made worse by aggregation through driver-internal retransmitting of A-MDPU subframes. Previously the hardware tx filter was cleared unconditionally for every single packet - with this patch it uses the IEEE80211_TX_CTL_CLEAR_PS_FILT for unaggregated frames. A sta_notify driver op is added to stop aggregation for stations when they enter powersave mode. Subframes stay buffered inside the driver, to ensure that the BlockAck window keeps a sane state. Since the driver uses software aggregation, the clearing of the tx filter needs to be handled by the driver instead of mac80211 for aggregated frames. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw-ops.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/net/wireless/ath/ath9k/hw-ops.h') diff --git a/drivers/net/wireless/ath/ath9k/hw-ops.h b/drivers/net/wireless/ath/ath9k/hw-ops.h index 22ee888b0baf..9dd90a85ad63 100644 --- a/drivers/net/wireless/ath/ath9k/hw-ops.h +++ b/drivers/net/wireless/ath/ath9k/hw-ops.h @@ -122,6 +122,11 @@ static inline void ath9k_hw_set11n_burstduration(struct ath_hw *ah, void *ds, ath9k_hw_ops(ah)->set11n_burstduration(ah, ds, burstDuration); } +static inline void ath9k_hw_set_clrdmask(struct ath_hw *ah, void *ds, bool val) +{ + ath9k_hw_ops(ah)->set_clrdmask(ah, ds, val); +} + /* Private hardware call ops */ /* PHY ops */ -- cgit v1.2.3