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ath9k: Filter out beacons from other BSS in STA mode 

Passing beacons received from other BSS to s/w in non-scanning
state is unnecessary in STA mode. This patch filters them out in
h/w.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2009-02-19 15:41:52 +05:30 committed by John W. Linville
parent 96891ceeda
commit dbaaa147d6
2 changed files with 8 additions and 6 deletions
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3
drivers/net/wireless/ath9k/mac.h
View File

@ -566,8 +566,9 @@ enum ath9k_rx_filter {
ATH9K_RX_FILTER_BEACON = 0x00000010,
ATH9K_RX_FILTER_PROM = 0x00000020,
ATH9K_RX_FILTER_PROBEREQ = 0x00000080,
ATH9K_RX_FILTER_PSPOLL = 0x00004000,
ATH9K_RX_FILTER_PHYERR = 0x00000100,
ATH9K_RX_FILTER_MYBEACON = 0x00000200,
ATH9K_RX_FILTER_PSPOLL = 0x00004000,
ATH9K_RX_FILTER_PHYRADAR = 0x00002000,
};

11
drivers/net/wireless/ath9k/recv.c
View File

@ -375,14 +375,15 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
if (sc->rx.rxfilter & FIF_CONTROL)
rfilt |= ATH9K_RX_FILTER_CONTROL;
if (sc->sc_ah->opmode == NL80211_IFTYPE_STATION ||
sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC)
if ((sc->sc_ah->opmode == NL80211_IFTYPE_STATION) &&
!(sc->rx.rxfilter & FIF_BCN_PRBRESP_PROMISC))
rfilt |= ATH9K_RX_FILTER_MYBEACON;
else
rfilt |= ATH9K_RX_FILTER_BEACON;
/* If in HOSTAP mode, want to enable reception of PSPOLL frames
& beacon frames */
/* If in HOSTAP mode, want to enable reception of PSPOLL frames */
if (sc->sc_ah->opmode == NL80211_IFTYPE_AP)
rfilt |= (ATH9K_RX_FILTER_BEACON | ATH9K_RX_FILTER_PSPOLL);
rfilt |= ATH9K_RX_FILTER_PSPOLL;
return rfilt;