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ath9k_htc: Fix beacon distribution in IBSS mode 

This patch ensures fair beacon distribution in IBSS mode
by configuring proper CWmin based on slot time.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rajkumar Manoharan 2010-09-21 12:58:09 +05:30 committed by John W. Linville
parent 9094537c3a
commit 9cf13668a5
1 changed files with 8 additions and 1 deletions
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9
drivers/net/wireless/ath/ath9k/htc_drv_beacon.c
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@ -235,7 +235,14 @@ void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv)
ath9k_hw_get_txq_props(ah, qnum, &qi_be);
qi.tqi_aifs = qi_be.tqi_aifs;
qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
/* For WIFI Beacon Distribution
* Long slot time : 2x cwmin
* Short slot time : 4x cwmin
*/
if (ah->slottime == ATH9K_SLOT_TIME_20)
qi.tqi_cwmin = 2*qi_be.tqi_cwmin;
else
qi.tqi_cwmin = 4*qi_be.tqi_cwmin;
qi.tqi_cwmax = qi_be.tqi_cwmax;
if (!ath9k_hw_set_txq_props(ah, priv->beaconq, &qi)) {