By changing DCU backoff threshold for AR9340 to 1, helps to
reduce rx overrurns seen while running bidirectional traffic.
Signed-off-by: Rajkumar Manoharan <rmanoharan@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/mac.c | 9 +++++++--
1 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 9cf7a7d..bd6d2b9 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -430,8 +430,13 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
SM(qi->tqi_shretry, AR_D_RETRY_LIMIT_FR_SH));
REG_WRITE(ah, AR_QMISC(q), AR_Q_MISC_DCU_EARLY_TERM_REQ);
- REG_WRITE(ah, AR_DMISC(q),
- AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x2);
+
+ if (AR_SREV_9340(ah))
+ REG_WRITE(ah, AR_DMISC(q),
+ AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x1);
+ else
+ REG_WRITE(ah, AR_DMISC(q),
+ AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x2);
if (qi->tqi_cbrPeriod) {
REG_WRITE(ah, AR_QCBRCFG(q),
--
1.7.5.1
--
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