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ath9k: disable unnecessary PHY error reporting

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commit ac06697c79 upstream.

PHY errors relevant for ANI are always tracked by hardware counters, the
bits that allow them to pass through the rx filter are independent of that.
Enabling PHY errors in the rx filter often creates lots of useless DMA traffic
and might be responsible for some of the rx dma stop failure warnings.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Felix Fietkau
2011-10-08 15:49:57 +02:00
committed by Greg Kroah-Hartman
parent cfd45841b2
commit 7ea775ce8a
2 changed files with 1 additions and 9 deletions
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5
drivers/net/wireless/ath/ath9k/ani.c
View File

@@ -502,9 +502,6 @@ static void ath9k_ani_reset_old(struct ath_hw *ah, bool is_scanning)
ath9k_hw_ani_control(ah, ATH9K_ANI_CCK_WEAK_SIGNAL_THR,
ATH9K_ANI_CCK_WEAK_SIG_THR);
ath9k_hw_setrxfilter(ah, ath9k_hw_getrxfilter(ah) |
ATH9K_RX_FILTER_PHYERR);
ath9k_ani_restart(ah);
return;
}
@@ -525,8 +522,6 @@ static void ath9k_ani_reset_old(struct ath_hw *ah, bool is_scanning)
ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel);
ath9k_hw_setrxfilter(ah, ath9k_hw_getrxfilter(ah) &
~ATH9K_RX_FILTER_PHYERR);
ath9k_ani_restart(ah);
ENABLE_REGWRITE_BUFFER(ah);

5
drivers/net/wireless/ath/ath9k/recv.c
View File

@@ -433,12 +433,9 @@ void ath_rx_cleanup(struct ath_softc *sc)
u32 ath_calcrxfilter(struct ath_softc *sc)
{
#define RX_FILTER_PRESERVE (ATH9K_RX_FILTER_PHYERR | ATH9K_RX_FILTER_PHYRADAR)
u32 rfilt;
rfilt = (ath9k_hw_getrxfilter(sc->sc_ah) & RX_FILTER_PRESERVE)
| ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST
rfilt = ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST
| ATH9K_RX_FILTER_MCAST;
if (sc->rx.rxfilter & FIF_PROBE_REQ)