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ath9k: Fix NF CCA limits for AR9287 and AR9227

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The FreeBSD driver [0] uses the same 2G values as for the AR9280 chips.
Using the same values in ath9k results in much better throughput for me.

Before this patch I had a huge amount of packet loss (sometimes up to
40%) and the max transfer speed was somewhere around 5Mbit/s. With this
patch applied I have zero packet loss and ten times the throughput.
My device uses a AR9227 which is the PCI variant of the AR9287.

[0] http://bxr.su/FreeBSD/sys/dev/ath/ath_hal/ar9002/ar9287.h

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Martin Blumenstingl 2015-07-22 10:42:43 +02:00 committed by Kalle Valo
parent f1d2b4d338
commit 406df18f1f
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wireless/ath/ath9k/ar9002_phy.h
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@ -610,8 +610,8 @@
#define AR_PHY_CCA_MIN_GOOD_VAL_9271_2GHZ -127
#define AR_PHY_CCA_MAX_GOOD_VAL_9271_2GHZ -116
#define AR_PHY_CCA_NOM_VAL_9287_2GHZ -120
#define AR_PHY_CCA_NOM_VAL_9287_2GHZ -112
#define AR_PHY_CCA_MIN_GOOD_VAL_9287_2GHZ -127
#define AR_PHY_CCA_MAX_GOOD_VAL_9287_2GHZ -110
#define AR_PHY_CCA_MAX_GOOD_VAL_9287_2GHZ -97
#endif