Index: madwifi-dfs-r3053/ath/if_ath.c =================================================================== --- madwifi-dfs-r3053.orig/ath/if_ath.c 2007-12-13 05:25:13.342385808 +0100 +++ madwifi-dfs-r3053/ath/if_ath.c 2007-12-13 05:25:13.662404044 +0100 @@ -189,7 +189,7 @@ struct sk_buff *, int, int, u_int64_t); static void ath_setdefantenna(struct ath_softc *, u_int); static struct ath_txq *ath_txq_setup(struct ath_softc *, int, int); -static void ath_rx_tasklet(TQUEUE_ARG); +static int ath_rx_poll(struct net_device *dev, int *budget); static int ath_hardstart(struct sk_buff *, struct net_device *); static int ath_mgtstart(struct ieee80211com *, struct sk_buff *); #ifdef ATH_SUPERG_COMP @@ -535,7 +535,6 @@ ATH_TXBUF_LOCK_INIT(sc); ATH_RXBUF_LOCK_INIT(sc); - ATH_INIT_TQUEUE(&sc->sc_rxtq, ath_rx_tasklet, dev); ATH_INIT_TQUEUE(&sc->sc_txtq, ath_tx_tasklet, dev); ATH_INIT_TQUEUE(&sc->sc_bmisstq, ath_bmiss_tasklet, dev); ATH_INIT_TQUEUE(&sc->sc_bstucktq, ath_bstuck_tasklet, dev); @@ -808,6 +807,8 @@ dev->set_mac_address = ath_set_mac_address; dev->change_mtu = ath_change_mtu; dev->tx_queue_len = ATH_TXBUF - ATH_TXBUF_MGT_RESERVED; + dev->poll = ath_rx_poll; + dev->weight = 64; #ifdef USE_HEADERLEN_RESV dev->hard_header_len += sizeof(struct ieee80211_qosframe) + sizeof(struct llc) + @@ -2150,6 +2151,7 @@ (status & HAL_INT_RXPHY) ? " HAL_INT_RXPHY" : "", (status & HAL_INT_SWBA) ? " HAL_INT_SWBA" : ""); + sc->sc_isr = status; status &= sc->sc_imask; /* discard unasked for bits */ if (status & HAL_INT_FATAL) { sc->sc_stats.ast_hardware++; @@ -2201,7 +2203,14 @@ } if (status & (HAL_INT_RX | HAL_INT_RXPHY)) { ath_uapsd_processtriggers(sc); - ATH_SCHEDULE_TQUEUE(&sc->sc_rxtq, &needmark); + sc->sc_isr &= ~HAL_INT_RX; + if (netif_rx_schedule_prep(dev)) { +#ifndef ATH_PRECISE_TSF + sc->sc_imask &= ~HAL_INT_RX; + ath_hal_intrset(ah, sc->sc_imask); +#endif + __netif_rx_schedule(dev); + } } if (status & HAL_INT_TX) { #ifdef ATH_SUPERG_DYNTURBO @@ -2227,6 +2236,11 @@ } } #endif + /* disable transmit interrupt */ + sc->sc_isr &= ~HAL_INT_TX; + ath_hal_intrset(ah, sc->sc_imask & ~HAL_INT_TX); + sc->sc_imask &= ~HAL_INT_TX; + ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark); } if (status & HAL_INT_BMISS) { @@ -3904,10 +3918,10 @@ * * XXX Using in_softirq is not right since we might * be called from other soft irq contexts than - * ath_rx_tasklet. + * ath_rx_poll */ if (!in_softirq()) - tasklet_disable(&sc->sc_rxtq); + netif_poll_disable(dev); netif_stop_queue(dev); } @@ -3920,7 +3934,7 @@ DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s:\n", __func__); netif_start_queue(dev); if (!in_softirq()) /* NB: see above */ - tasklet_enable(&sc->sc_rxtq); + netif_poll_enable(dev); } /* @@ -6287,13 +6301,12 @@ sc->sc_rxotherant = 0; } -static void -ath_rx_tasklet(TQUEUE_ARG data) +static int +ath_rx_poll(struct net_device *dev, int *budget) { #define PA2DESC(_sc, _pa) \ ((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \ ((_pa) - (_sc)->sc_rxdma.dd_desc_paddr))) - struct net_device *dev = (struct net_device *)data; struct ath_buf *bf; struct ath_softc *sc = dev->priv; struct ieee80211com *ic = &sc->sc_ic; @@ -6305,8 +6318,11 @@ unsigned int len; int type; u_int phyerr; + u_int processed = 0, early_stop = 0; + u_int rx_limit = dev->quota; DPRINTF(sc, ATH_DEBUG_RX_PROC, "%s\n", __func__); +process_rx_again: do { bf = STAILQ_FIRST(&sc->sc_rxbuf); if (bf == NULL) { /* XXX ??? can this happen */ @@ -6330,6 +6346,13 @@ /* NB: never process the self-linked entry at the end */ break; } + + processed++; + if (rx_limit-- < 0) { + early_stop = 1; + break; + } + skb = bf->bf_skb; if (skb == NULL) { printk("%s: no skbuff (%s)\n", DEV_NAME(dev), __func__); @@ -6374,6 +6397,7 @@ sc->sc_stats.ast_rx_phyerr++; phyerr = rs->rs_phyerr & 0x1f; sc->sc_stats.ast_rx_phy[phyerr]++; + goto rx_next; } if (rs->rs_status & HAL_RXERR_DECRYPT) { /* @@ -6571,9 +6595,33 @@ STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list); ATH_RXBUF_UNLOCK_IRQ(sc); } while (ath_rxbuf_init(sc, bf) == 0); + if (!early_stop) { + /* Check if more data is received while we were + * processing the descriptor chain. + */ +#ifndef ATH_PRECISE_TSF + ATH_DISABLE_INTR(); + if (sc->sc_isr & HAL_INT_RX) { + sc->sc_isr &= ~HAL_INT_RX; + ATH_ENABLE_INTR(); + ath_uapsd_processtriggers(sc); + goto process_rx_again; + } +#endif + netif_rx_complete(dev); + +#ifndef ATH_PRECISE_TSF + sc->sc_imask |= HAL_INT_RX; + ath_hal_intrset(ah, sc->sc_imask); + ATH_ENABLE_INTR(); +#endif + } + + *budget -= processed; /* rx signal state monitoring */ ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan); + return early_stop; #undef PA2DESC } @@ -8192,11 +8240,22 @@ struct net_device *dev = (struct net_device *)data; struct ath_softc *sc = dev->priv; +process_tx_again: if (txqactive(sc->sc_ah, 0)) ath_tx_processq(sc, &sc->sc_txq[0]); if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum)) ath_tx_processq(sc, sc->sc_cabq); + ATH_DISABLE_INTR(); + if (sc->sc_isr & HAL_INT_TX) { + sc->sc_isr &= ~HAL_INT_TX; + ATH_ENABLE_INTR(); + goto process_tx_again; + } + sc->sc_imask |= HAL_INT_TX; + ath_hal_intrset(sc->sc_ah, sc->sc_imask); + ATH_ENABLE_INTR(); + netif_wake_queue(dev); if (sc->sc_softled) @@ -8213,6 +8272,7 @@ struct net_device *dev = (struct net_device *)data; struct ath_softc *sc = dev->priv; +process_tx_again: /* * Process each active queue. */ @@ -8233,6 +8293,16 @@ if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum)) ath_tx_processq(sc, sc->sc_uapsdq); + ATH_DISABLE_INTR(); + if (sc->sc_isr & HAL_INT_TX) { + sc->sc_isr &= ~HAL_INT_TX; + ATH_ENABLE_INTR(); + goto process_tx_again; + } + sc->sc_imask |= HAL_INT_TX; + ath_hal_intrset(sc->sc_ah, sc->sc_imask); + ATH_ENABLE_INTR(); + netif_wake_queue(dev); if (sc->sc_softled) @@ -8250,6 +8320,7 @@ unsigned int i; /* Process each active queue. */ +process_tx_again: for (i = 0; i < HAL_NUM_TX_QUEUES; i++) if (ATH_TXQ_SETUP(sc, i) && txqactive(sc->sc_ah, i)) ath_tx_processq(sc, &sc->sc_txq[i]); @@ -8258,6 +8329,16 @@ ath_tx_processq(sc, sc->sc_xrtxq); #endif + ATH_DISABLE_INTR(); + if (sc->sc_isr & HAL_INT_TX) { + sc->sc_isr &= ~HAL_INT_TX; + ATH_ENABLE_INTR(); + goto process_tx_again; + } + sc->sc_imask |= HAL_INT_TX; + ath_hal_intrset(sc->sc_ah, sc->sc_imask); + ATH_ENABLE_INTR(); + netif_wake_queue(dev); if (sc->sc_softled) @@ -8332,6 +8413,7 @@ ath_draintxq(struct ath_softc *sc) { struct ath_hal *ah = sc->sc_ah; + int npend = 0; unsigned int i; /* XXX return value */ @@ -10095,9 +10177,9 @@ dev->mtu = mtu; if ((dev->flags & IFF_RUNNING) && !sc->sc_invalid) { /* NB: the rx buffers may need to be reallocated */ - tasklet_disable(&sc->sc_rxtq); + netif_poll_disable(dev); error = ath_reset(dev); - tasklet_enable(&sc->sc_rxtq); + netif_poll_enable(dev); } ATH_UNLOCK(sc); Index: madwifi-dfs-r3053/ath/if_athvar.h =================================================================== --- madwifi-dfs-r3053.orig/ath/if_athvar.h 2007-12-13 05:25:12.842357313 +0100 +++ madwifi-dfs-r3053/ath/if_athvar.h 2007-12-13 05:25:13.666404270 +0100 @@ -50,6 +50,10 @@ #include #include +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) +#define irqs_disabled() 0 +#endif + /* * Deduce if tasklets are available. If not then * fall back to using the immediate work queue. @@ -728,7 +732,6 @@ struct ath_buf *sc_rxbufcur; /* current rx buffer */ u_int32_t *sc_rxlink; /* link ptr in last RX desc */ spinlock_t sc_rxbuflock; - struct ATH_TQ_STRUCT sc_rxtq; /* rx intr tasklet */ struct ATH_TQ_STRUCT sc_rxorntq; /* rxorn intr tasklet */ u_int8_t sc_defant; /* current default antenna */ u_int8_t sc_rxotherant; /* RXs on non-default antenna */ @@ -741,6 +744,7 @@ u_int sc_txintrperiod; /* tx interrupt batching */ struct ath_txq sc_txq[HAL_NUM_TX_QUEUES]; struct ath_txq *sc_ac2q[WME_NUM_AC]; /* WME AC -> h/w qnum */ + HAL_INT sc_isr; /* unmasked ISR state */ struct ATH_TQ_STRUCT sc_txtq; /* tx intr tasklet */ u_int8_t sc_grppoll_str[GRPPOLL_RATE_STR_LEN]; struct ath_descdma sc_bdma; /* beacon descriptors */ @@ -853,6 +857,8 @@ #define ATH_TXBUF_LOCK_CHECK(_sc) #endif +#define ATH_DISABLE_INTR local_irq_disable +#define ATH_ENABLE_INTR local_irq_enable #define ATH_RXBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_rxbuflock) #define ATH_RXBUF_LOCK_DESTROY(_sc) Index: madwifi-dfs-r3053/net80211/ieee80211_input.c =================================================================== --- madwifi-dfs-r3053.orig/net80211/ieee80211_input.c 2007-12-13 05:25:10.374216660 +0100 +++ madwifi-dfs-r3053/net80211/ieee80211_input.c 2007-12-13 05:25:13.674404726 +0100 @@ -1178,7 +1178,7 @@ /* attach vlan tag */ struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni; if (vlan_hwaccel_receive_skb(skb, vap->iv_vlgrp, ni->ni_vlan) == NET_RX_DROP) { - /* If netif_rx dropped the packet because + /* If netif_receive_skb dropped the packet because * device was too busy */ if (ni_tmp != NULL) { /* node reference was leaked */ @@ -1189,8 +1189,8 @@ skb = NULL; /* SKB is no longer ours */ } else { struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni; - if (netif_rx(skb) == NET_RX_DROP) { - /* If netif_rx dropped the packet because + if (netif_receive_skb(skb) == NET_RX_DROP) { + /* If netif_receive_skb dropped the packet because * device was too busy */ if (ni_tmp != NULL) { /* node reference was leaked */ @@ -2299,8 +2299,8 @@ skb1->protocol = __constant_htons(0x0019); /* ETH_P_80211_RAW */ ni_tmp = SKB_CB(skb1)->ni; - if (netif_rx(skb1) == NET_RX_DROP) { - /* If netif_rx dropped the packet because + if (netif_receive_skb(skb1) == NET_RX_DROP) { + /* If netif_receive_skb dropped the packet because * device was too busy */ if (ni_tmp != NULL) { /* node reference was leaked */ Index: madwifi-dfs-r3053/net80211/ieee80211_monitor.c =================================================================== --- madwifi-dfs-r3053.orig/net80211/ieee80211_monitor.c 2007-12-13 05:25:10.386217344 +0100 +++ madwifi-dfs-r3053/net80211/ieee80211_monitor.c 2007-12-13 05:25:13.678404955 +0100 @@ -577,7 +577,7 @@ skb1->protocol = __constant_htons(0x0019); /* ETH_P_80211_RAW */ ni_tmp = SKB_CB(skb1)->ni; - if (netif_rx(skb1) == NET_RX_DROP) { + if (netif_receive_skb(skb1) == NET_RX_DROP) { /* If netif_rx dropped the packet because * device was too busy */ if (ni_tmp != NULL) {