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authorFelix Fietkau <nbd@openwrt.org>2011-04-17 23:28:09 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-04-19 15:38:06 -0400
commit5519541d5a5f19893546883547e2f0f2e5934df7 (patch)
treeae581edfed4ce3382b22076cb03174756e004830 /drivers/net/wireless/ath/ath9k/ath9k.h
parent8e22ad323fb5b7cefb572bd8730e3abef95cdf90 (diff)
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 <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ath9k.h')
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 77ad407e9fa3..a2ddabf0ca2f 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -200,6 +200,7 @@ struct ath_atx_ac {
int sched;
struct list_head list;
struct list_head tid_q;
+ bool clear_ps_filter;
};
struct ath_frame_info {
@@ -257,6 +258,8 @@ struct ath_node {
struct ath_atx_ac ac[WME_NUM_AC];
u16 maxampdu;
u8 mpdudensity;
+
+ bool sleeping;
};
#define AGGR_CLEANUP BIT(1)
@@ -338,6 +341,9 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid);
+void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
+bool ath_tx_aggr_sleep(struct ath_softc *sc, struct ath_node *an);
+
/********/
/* VIFs */
/********/