From 7dcfdcd908a4540512aaf06b2b35e8c8a084fb69 Mon Sep 17 00:00:00 2001 From: Sujith Date: Mon, 11 Aug 2008 14:03:13 +0530 Subject: [PATCH] ath9k: RX Filter cleanup Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath9k/core.c | 53 ------------------------------- drivers/net/wireless/ath9k/core.h | 5 +-- drivers/net/wireless/ath9k/main.c | 19 +++++------ drivers/net/wireless/ath9k/recv.c | 11 +++++-- 4 files changed, 21 insertions(+), 67 deletions(-) diff --git a/drivers/net/wireless/ath9k/core.c b/drivers/net/wireless/ath9k/core.c index 10f2729a8c4b..7f92d469ad02 100644 --- a/drivers/net/wireless/ath9k/core.c +++ b/drivers/net/wireless/ath9k/core.c @@ -21,9 +21,6 @@ static int ath_outdoor; /* enable outdoor use */ -static const u8 ath_bcast_mac[ETH_ALEN] = - { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; - static u32 ath_chainmask_sel_up_rssi_thres = ATH_CHAINMASK_SEL_UP_RSSI_THRES; static u32 ath_chainmask_sel_down_rssi_thres = @@ -306,56 +303,6 @@ static int ath_stop(struct ath_softc *sc) return 0; } -/* - * Start Scan - * - * This function is called when starting a channel scan. It will perform - * power save wakeup processing, set the filter for the scan, and get the - * chip ready to send broadcast packets out during the scan. -*/ - -void ath_scan_start(struct ath_softc *sc) -{ - struct ath_hal *ah = sc->sc_ah; - u32 rfilt; - u32 now = (u32) jiffies_to_msecs(get_timestamp()); - - sc->sc_scanning = 1; - rfilt = ath_calcrxfilter(sc); - ath9k_hw_setrxfilter(ah, rfilt); - ath9k_hw_write_associd(ah, ath_bcast_mac, 0); - - /* Restore previous power management state. */ - - DPRINTF(sc, ATH_DBG_CONFIG, "%d.%03d | %s: RX filter 0x%x aid 0\n", - now / 1000, now % 1000, __func__, rfilt); -} - -/* - * Scan End - * - * This routine is called by the upper layer when the scan is completed. This - * will set the filters back to normal operating mode, set the BSSID to the - * correct value, and restore the power save state. -*/ - -void ath_scan_end(struct ath_softc *sc) -{ - struct ath_hal *ah = sc->sc_ah; - u32 rfilt; - u32 now = (u32) jiffies_to_msecs(get_timestamp()); - - sc->sc_scanning = 0; - /* Request for a full reset due to rx packet filter changes */ - sc->sc_full_reset = 1; - rfilt = ath_calcrxfilter(sc); - ath9k_hw_setrxfilter(ah, rfilt); - ath9k_hw_write_associd(ah, sc->sc_curbssid, sc->sc_curaid); - - DPRINTF(sc, ATH_DBG_CONFIG, "%d.%03d | %s: RX filter 0x%x aid 0x%x\n", - now / 1000, now % 1000, __func__, rfilt, sc->sc_curaid); -} - /* * Set the current channel * diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h index ef8f63766d43..07c958802b79 100644 --- a/drivers/net/wireless/ath9k/core.h +++ b/drivers/net/wireless/ath9k/core.h @@ -95,6 +95,8 @@ static inline unsigned long get_timestamp(void) return ((jiffies / HZ) * 1000) + (jiffies % HZ) * (1000 / HZ); } +static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + /*************/ /* Debugging */ /*************/ @@ -919,10 +921,9 @@ struct ath_softc { struct ath_rate_softc *sc_rc; /* tx rate control support */ u32 sc_intrstatus; enum ath9k_opmode sc_opmode; /* current operating mode */ - + unsigned int rx_filter; u8 sc_invalid; /* being detached */ u8 sc_beacons; /* beacons running */ - u8 sc_scanning; /* scanning active */ u8 sc_txaggr; /* enable 11n tx aggregation */ u8 sc_rxaggr; /* enable 11n rx aggregation */ u8 sc_update_chainmask; /* change chain mask */ diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c index 2888778040e4..262fd7a8cd9a 100644 --- a/drivers/net/wireless/ath9k/main.c +++ b/drivers/net/wireless/ath9k/main.c @@ -549,10 +549,6 @@ static int ath9k_config_interface(struct ieee80211_hw *hw, /* Update ratectrl about the new state */ ath_rate_newstate(sc, avp); - /* Set rx filter */ - rfilt = ath_calcrxfilter(sc); - ath9k_hw_setrxfilter(sc->sc_ah, rfilt); - /* Set BSSID */ memcpy(sc->sc_curbssid, conf->bssid, ETH_ALEN); sc->sc_curaid = 0; @@ -636,8 +632,7 @@ static int ath9k_config_interface(struct ieee80211_hw *hw, FIF_BCN_PRBRESP_PROMISC | \ FIF_FCSFAIL) -/* Accept unicast, bcast and mcast frames */ - +/* FIXME: sc->sc_full_reset ? */ static void ath9k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, @@ -645,16 +640,22 @@ static void ath9k_configure_filter(struct ieee80211_hw *hw, struct dev_mc_list *mclist) { struct ath_softc *sc = hw->priv; + u32 rfilt; changed_flags &= SUPPORTED_FILTERS; *total_flags &= SUPPORTED_FILTERS; + sc->rx_filter = *total_flags; + rfilt = ath_calcrxfilter(sc); + ath9k_hw_setrxfilter(sc->sc_ah, rfilt); + if (changed_flags & FIF_BCN_PRBRESP_PROMISC) { if (*total_flags & FIF_BCN_PRBRESP_PROMISC) - ath_scan_start(sc); - else - ath_scan_end(sc); + ath9k_hw_write_associd(sc->sc_ah, ath_bcast_mac, 0); } + + DPRINTF(sc, ATH_DBG_CONFIG, "%s: Set HW RX filter: 0x%x\n", + __func__, sc->rx_filter); } static void ath9k_sta_notify(struct ieee80211_hw *hw, diff --git a/drivers/net/wireless/ath9k/recv.c b/drivers/net/wireless/ath9k/recv.c index 838b656b9da4..a12584961d69 100644 --- a/drivers/net/wireless/ath9k/recv.c +++ b/drivers/net/wireless/ath9k/recv.c @@ -597,6 +597,7 @@ 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) @@ -608,14 +609,17 @@ u32 ath_calcrxfilter(struct ath_softc *sc) rfilt |= ATH9K_RX_FILTER_PROBEREQ; /* Can't set HOSTAP into promiscous mode */ - if (sc->sc_opmode == ATH9K_M_MONITOR) { + if (((sc->sc_opmode != ATH9K_M_HOSTAP) && + (sc->rx_filter & FIF_PROMISC_IN_BSS)) || + (sc->sc_opmode == ATH9K_M_MONITOR)) { rfilt |= ATH9K_RX_FILTER_PROM; /* ??? To prevent from sending ACK */ rfilt &= ~ATH9K_RX_FILTER_UCAST; } - if (sc->sc_opmode == ATH9K_M_STA || sc->sc_opmode == ATH9K_M_IBSS || - sc->sc_scanning) + if (((sc->sc_opmode == ATH9K_M_STA) && + (sc->rx_filter & FIF_BCN_PRBRESP_PROMISC)) || + (sc->sc_opmode == ATH9K_M_IBSS)) rfilt |= ATH9K_RX_FILTER_BEACON; /* If in HOSTAP mode, want to enable reception of PSPOLL frames @@ -623,6 +627,7 @@ u32 ath_calcrxfilter(struct ath_softc *sc) if (sc->sc_opmode == ATH9K_M_HOSTAP) rfilt |= (ATH9K_RX_FILTER_BEACON | ATH9K_RX_FILTER_PSPOLL); return rfilt; + #undef RX_FILTER_PRESERVE } -- 2.30.2