| From ac06697c79bad09e44a8b1d52104014016fb90de Mon Sep 17 00:00:00 2001 |
| From: Felix Fietkau <nbd@openwrt.org> |
| Date: Sat, 8 Oct 2011 15:49:57 +0200 |
| Subject: ath9k: disable unnecessary PHY error reporting |
| |
| From: Felix Fietkau <nbd@openwrt.org> |
| |
| commit ac06697c79bad09e44a8b1d52104014016fb90de 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> |
| |
| --- |
| drivers/net/wireless/ath/ath9k/ani.c | 5 ----- |
| drivers/net/wireless/ath/ath9k/recv.c | 5 +---- |
| 2 files changed, 1 insertion(+), 9 deletions(-) |
| |
| --- a/drivers/net/wireless/ath/ath9k/ani.c |
| +++ b/drivers/net/wireless/ath/ath9k/ani.c |
| @@ -502,9 +502,6 @@ static void ath9k_ani_reset_old(struct a |
| 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 a |
| 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); |
| --- a/drivers/net/wireless/ath/ath9k/recv.c |
| +++ b/drivers/net/wireless/ath/ath9k/recv.c |
| @@ -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) |
