diff options
| author | Vivek Natarajan <vnatarajan@atheros.com> | 2009-11-25 12:01:54 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-11-28 15:04:52 -0500 |
| commit | 94db29368a658b13a088db87c7b0bf59b1a7492d (patch) | |
| tree | 5d6a5a2f8d4d31c0ed29d0f464200587b4a05253 /drivers/net/wireless | |
| parent | f4709fdf683e1ed37b321c258b614ebe39752bf3 (diff) | |
ath9k: Ensure a fair beacon distribution in IBSS mode.
Update the beacon queue parameters with best effort queue parameters for
IBSS mode. This reduces the number of beacons generated by ath9k and
ensures a fair beacon distribution when there are multiple IBSS stations.
Also CWmin is quadrupled to achieve the expected percentage of
distribution.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ath9k.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/beacon.c | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 4 |
3 files changed, 14 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 3eb9677b2df..42f79caa870 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -329,6 +329,7 @@ void ath_beacon_tasklet(unsigned long data); void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif); int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif); void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp); +int ath_beaconq_config(struct ath_softc *sc); /*******/ /* ANI */ diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index cb774cc828a..1660ef17aaf 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -23,11 +23,12 @@ * the operating mode of the station (AP or AdHoc). Parameters are AIFS * settings and channel width min/max */ -static int ath_beaconq_config(struct ath_softc *sc) +int ath_beaconq_config(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - struct ath9k_tx_queue_info qi; + struct ath9k_tx_queue_info qi, qi_be; + int qnum; ath9k_hw_get_txq_props(ah, sc->beacon.beaconq, &qi); if (sc->sc_ah->opmode == NL80211_IFTYPE_AP) { @@ -37,9 +38,12 @@ static int ath_beaconq_config(struct ath_softc *sc) qi.tqi_cwmax = 0; } else { /* Adhoc mode; important thing is to use 2x cwmin. */ - qi.tqi_aifs = sc->beacon.beacon_qi.tqi_aifs; - qi.tqi_cwmin = 2*sc->beacon.beacon_qi.tqi_cwmin; - qi.tqi_cwmax = sc->beacon.beacon_qi.tqi_cwmax; + qnum = ath_tx_get_qnum(sc, ATH9K_TX_QUEUE_DATA, + ATH9K_WME_AC_BE); + ath9k_hw_get_txq_props(ah, qnum, &qi_be); + qi.tqi_aifs = qi_be.tqi_aifs; + qi.tqi_cwmin = 4*qi_be.tqi_cwmin; + qi.tqi_cwmax = qi_be.tqi_cwmax; } if (!ath9k_hw_set_txq_props(ah, sc->beacon.beaconq, &qi)) { diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index cfe710b01d8..b9598148767 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2882,6 +2882,10 @@ static int ath9k_conf_tx(struct ieee80211_hw *hw, u16 queue, if (ret) ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n"); + if (sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) + if ((qnum == sc->tx.hwq_map[ATH9K_WME_AC_BE]) && !ret) + ath_beaconq_config(sc); + mutex_unlock(&sc->mutex); return ret; |