diff options
| author | Rajkumar Manoharan <rmanoharan@atheros.com> | 2011-05-09 17:41:27 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-05-10 23:54:52 +0400 |
| commit | 94333f59cba08a1f6513ecd7e2fc5b85c1949a98 (patch) | |
| tree | 0b69a8b5f55a329460e9cc134a03d383cc52c041 /drivers | |
| parent | 165af96d56dce3bd0cd09567106f22215f80bb63 (diff) | |
| download | linux-94333f59cba08a1f6513ecd7e2fc5b85c1949a98.tar.xz | |
ath9k_hw: Change DCU backoff thresh for AR9340
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@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | 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 9cf7a7d0e118..bd6d2b9d736f 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), |