diff options
| author | Sven Eckelmann <sven@narfation.org> | 2012-06-25 07:15:22 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-06-26 14:28:50 -0400 |
| commit | 313eb87f1e2f93d83836de7f5c1947b75d7752c8 (patch) | |
| tree | 7c506829d116550dbb82c55cb9dd727eddb63263 /drivers/net/wireless/ath/ath9k/main.c | |
| parent | 46e5129ba6e00ff110df17338bc8fe5ee8f2f8b2 (diff) | |
| download | lwn-313eb87f1e2f93d83836de7f5c1947b75d7752c8.tar.gz lwn-313eb87f1e2f93d83836de7f5c1947b75d7752c8.zip | |
ath9k: raise aggregation limit to 64k for HT IBSS
mac80211 adds stations in HT IBSS as soon as a frame comes by,
even if the HT capabilities are not known yet (they are often
received later, e.g. in beacons). So far, ampdu factor/density
are only calculated when the station is initially added.
This patch changes this to update ampdu factor/density settings
when starting a blockack session.
Using this patch, we had performance boosts from 60 to 150 MBit/s
between two 2x2 Atheros devices in 5 GHz HT IBSS mode.
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/main.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 85f9ab4fa26e..e2e69585d674 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -19,7 +19,7 @@ #include "ath9k.h" #include "btcoex.h" -static u8 parse_mpdudensity(u8 mpdudensity) +u8 ath9k_parse_mpdudensity(u8 mpdudensity) { /* * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing": @@ -320,6 +320,7 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta, struct ieee80211_vif *vif) { struct ath_node *an; + u8 density; an = (struct ath_node *)sta->drv_priv; #ifdef CONFIG_ATH9K_DEBUGFS @@ -334,7 +335,8 @@ static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta, ath_tx_node_init(sc, an); an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + sta->ht_cap.ampdu_factor); - an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density); + density = ath9k_parse_mpdudensity(sta->ht_cap.ampdu_density); + an->mpdudensity = density; } } |