diff options
| -rw-r--r-- | drivers/net/wireless/ath5k/base.c | 64 | ||||
| -rw-r--r-- | drivers/net/wireless/ath5k/base.h | 1 |
2 files changed, 36 insertions, 29 deletions
diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 8e5620afd2f..fa6a21646bf 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -350,6 +350,7 @@ static int ath5k_beacon_setup(struct ath5k_softc *sc, static void ath5k_beacon_send(struct ath5k_softc *sc); static void ath5k_beacon_config(struct ath5k_softc *sc); static void ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf); +static void ath5k_tasklet_beacon(unsigned long data); static inline u64 ath5k_extend_tsf(struct ath5k_hw *ah, u32 rstamp) { @@ -789,6 +790,7 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw) tasklet_init(&sc->rxtq, ath5k_tasklet_rx, (unsigned long)sc); tasklet_init(&sc->txtq, ath5k_tasklet_tx, (unsigned long)sc); tasklet_init(&sc->restq, ath5k_tasklet_reset, (unsigned long)sc); + tasklet_init(&sc->beacontq, ath5k_tasklet_beacon, (unsigned long)sc); setup_timer(&sc->calib_tim, ath5k_calibrate, (unsigned long)sc); ret = ath5k_eeprom_read_mac(ah, mac); @@ -1700,6 +1702,35 @@ ath5k_check_ibss_tsf(struct ath5k_softc *sc, struct sk_buff *skb, } } +static void ath5k_tasklet_beacon(unsigned long data) +{ + struct ath5k_softc *sc = (struct ath5k_softc *) data; + + /* + * Software beacon alert--time to send a beacon. + * + * In IBSS mode we use this interrupt just to + * keep track of the next TBTT (target beacon + * transmission time) in order to detect wether + * automatic TSF updates happened. + */ + if (sc->opmode == NL80211_IFTYPE_ADHOC) { + /* XXX: only if VEOL suppported */ + u64 tsf = ath5k_hw_get_tsf64(sc->ah); + sc->nexttbtt += sc->bintval; + ATH5K_DBG(sc, ATH5K_DEBUG_BEACON, + "SWBA nexttbtt: %x hw_tu: %x " + "TSF: %llx\n", + sc->nexttbtt, + TSF_TO_TU(tsf), + (unsigned long long) tsf); + } else { + spin_lock(&sc->block); + ath5k_beacon_send(sc); + spin_unlock(&sc->block); + } +} + static void ath5k_tasklet_rx(unsigned long data) { @@ -2039,9 +2070,8 @@ err_unmap: * frame contents are done as needed and the slot time is * also adjusted based on current state. * - * this is usually called from interrupt context (ath5k_intr()) - * but also from ath5k_beacon_config() in IBSS mode which in turn - * can be called from a tasklet and user context + * This is called from software irq context (beacontq or restq + * tasklets) or user context from ath5k_beacon_config. */ static void ath5k_beacon_send(struct ath5k_softc *sc) @@ -2391,6 +2421,7 @@ ath5k_stop_hw(struct ath5k_softc *sc) tasklet_kill(&sc->rxtq); tasklet_kill(&sc->txtq); tasklet_kill(&sc->restq); + tasklet_kill(&sc->beacontq); return ret; } @@ -2421,32 +2452,7 @@ ath5k_intr(int irq, void *dev_id) tasklet_schedule(&sc->restq); } else { if (status & AR5K_INT_SWBA) { - /* - * Software beacon alert--time to send a beacon. - * Handle beacon transmission directly; deferring - * this is too slow to meet timing constraints - * under load. - * - * In IBSS mode we use this interrupt just to - * keep track of the next TBTT (target beacon - * transmission time) in order to detect wether - * automatic TSF updates happened. - */ - if (sc->opmode == NL80211_IFTYPE_ADHOC) { - /* XXX: only if VEOL suppported */ - u64 tsf = ath5k_hw_get_tsf64(ah); - sc->nexttbtt += sc->bintval; - ATH5K_DBG(sc, ATH5K_DEBUG_BEACON, - "SWBA nexttbtt: %x hw_tu: %x " - "TSF: %llx\n", - sc->nexttbtt, - TSF_TO_TU(tsf), - (unsigned long long) tsf); - } else { - spin_lock(&sc->block); - ath5k_beacon_send(sc); - spin_unlock(&sc->block); - } + tasklet_schedule(&sc->beacontq); } if (status & AR5K_INT_RXEOL) { /* diff --git a/drivers/net/wireless/ath5k/base.h b/drivers/net/wireless/ath5k/base.h index c0fb8b5c42f..20e0d14b41e 100644 --- a/drivers/net/wireless/ath5k/base.h +++ b/drivers/net/wireless/ath5k/base.h @@ -169,6 +169,7 @@ struct ath5k_softc { struct ath5k_led tx_led; /* tx led */ spinlock_t block; /* protects beacon */ + struct tasklet_struct beacontq; /* beacon intr tasklet */ struct ath5k_buf *bbuf; /* beacon buffer */ unsigned int bhalq, /* SW q for outgoing beacons */ bmisscount, /* missed beacon transmits */ |