From 3deb4da554c3ad9b059f51d19eebadf8525da4a4 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <lrodriguez@atheros.com>
Date: Thu, 15 Apr 2010 17:39:32 -0400
Subject: [PATCH] ath9k_hw: set cwmin and cwmax to 0 for for AR9003 upon txq
reset
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/mac.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 44ea43a143d8..c003baf2e937 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -533,6 +533,12 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
AR_D_MISC_ARB_LOCKOUT_CNTRL_S)
| AR_D_MISC_BEACON_USE
| AR_D_MISC_POST_FR_BKOFF_DIS);
+ /* cwmin and cwmax should be 0 for beacon queue */
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ REG_WRITE(ah, AR_DLCL_IFS(q), SM(0, AR_D_LCL_IFS_CWMIN)
+ | SM(0, AR_D_LCL_IFS_CWMAX)
+ | SM(qi->tqi_aifs, AR_D_LCL_IFS_AIFS));
+ }
break;
case ATH9K_TX_QUEUE_CAB:
REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q))
--
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