Index: madwifi-dfs-r3246/ath/if_ath.c =================================================================== --- madwifi-dfs-r3246.orig/ath/if_ath.c 2008-01-25 16:28:31.352327279 +0100 +++ madwifi-dfs-r3246/ath/if_ath.c 2008-01-25 16:30:04.921659489 +0100 @@ -188,7 +188,7 @@ 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 @@ -545,7 +545,6 @@ 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); @@ -822,6 +821,8 @@ 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) + @@ -2233,6 +2234,7 @@ (status & HAL_INT_GLOBAL) ? " HAL_INT_GLOBAL" : "" ); + sc->sc_isr = status; status &= sc->sc_imask; /* discard unasked for bits */ if (status & HAL_INT_FATAL) { sc->sc_stats.ast_hardware++; @@ -2284,7 +2286,14 @@ } 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 @@ -2310,6 +2319,11 @@ } } #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) { @@ -4017,10 +4031,10 @@ * * 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); } @@ -4033,7 +4047,7 @@ 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); } /* @@ -6358,13 +6372,12 @@ 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; @@ -6376,8 +6389,11 @@ 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 */ @@ -6401,6 +6417,13 @@ /* 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__); @@ -6448,6 +6471,7 @@ 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) { /* @@ -6658,9 +6682,33 @@ 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 } @@ -8308,11 +8356,22 @@ 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) @@ -8329,6 +8388,7 @@ struct net_device *dev = (struct net_device *)data; struct ath_softc *sc = dev->priv; +process_tx_again: /* * Process each active queue. */ @@ -8349,6 +8409,16 @@ 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) @@ -8367,10 +8437,21 @@ /* Process each active queue. This includes sc_cabq, sc_xrtq and * sc_uapsdq */ +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]); + 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) @@ -8445,6 +8526,7 @@ ath_draintxq(struct ath_softc *sc) { struct ath_hal *ah = sc->sc_ah; + int npend = 0; unsigned int i; /* XXX return value */ @@ -10310,9 +10392,9 @@ 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-r3246/ath/if_athvar.h =================================================================== --- madwifi-dfs-r3246.orig/ath/if_athvar.h 2008-01-25 16:28:31.304324541 +0100 +++ madwifi-dfs-r3246/ath/if_athvar.h 2008-01-25 16:28:36.740634339 +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 */ @@ -854,6 +858,8 @@ #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-r3246/net80211/ieee80211_input.c =================================================================== --- madwifi-dfs-r3246.orig/net80211/ieee80211_input.c 2008-01-25 16:27:28.000000000 +0100 +++ madwifi-dfs-r3246/net80211/ieee80211_input.c 2008-01-25 16:32:53.171247487 +0100 @@ -1196,7 +1196,7 @@ /* 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 */ @@ -1207,8 +1207,8 @@ 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 */ @@ -2313,8 +2313,8 @@ 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-r3246/net80211/ieee80211_monitor.c =================================================================== --- madwifi-dfs-r3246.orig/net80211/ieee80211_monitor.c 2008-01-25 16:27:28.000000000 +0100 +++ madwifi-dfs-r3246/net80211/ieee80211_monitor.c 2008-01-25 16:32:05.436527235 +0100 @@ -586,8 +586,8 @@ skb1->protocol = __constant_htons(0x0019); /* ETH_P_80211_RAW */ - 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, reclaim the ref. in * the skb. */ if (SKB_CB(skb1)->ni != NULL) Index: madwifi-dfs-r3246/net80211/ieee80211_skb.c =================================================================== --- madwifi-dfs-r3246.orig/net80211/ieee80211_skb.c 2008-01-25 16:31:47.167486151 +0100 +++ madwifi-dfs-r3246/net80211/ieee80211_skb.c 2008-01-25 16:31:55.695972162 +0100 @@ -73,7 +73,7 @@ #undef dev_queue_xmit #undef kfree_skb #undef kfree_skb_fast -#undef netif_rx +#undef netif_receive_skb #undef pskb_copy #undef skb_clone #undef skb_copy @@ -627,8 +627,8 @@ grp, vlan_tag); } -int netif_rx_debug(struct sk_buff *skb, const char* func, int line) { - return netif_rx(untrack_skb(skb, 0, func, line, __func__, __LINE__)); +int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line) { + return netif_receive_skb(untrack_skb(skb, 0, func, line, __func__, __LINE__)); } struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask, @@ -749,7 +749,7 @@ } EXPORT_SYMBOL(vlan_hwaccel_receive_skb_debug); -EXPORT_SYMBOL(netif_rx_debug); +EXPORT_SYMBOL(netif_receive_skb_debug); EXPORT_SYMBOL(alloc_skb_debug); EXPORT_SYMBOL(dev_alloc_skb_debug); EXPORT_SYMBOL(skb_clone_debug); Index: madwifi-dfs-r3246/net80211/ieee80211_skb.h =================================================================== --- madwifi-dfs-r3246.orig/net80211/ieee80211_skb.h 2008-01-25 16:31:20.845986170 +0100 +++ madwifi-dfs-r3246/net80211/ieee80211_skb.h 2008-01-25 16:31:36.982905763 +0100 @@ -116,7 +116,7 @@ int vlan_hwaccel_receive_skb_debug(struct sk_buff *skb, struct vlan_group *grp, unsigned short vlan_tag, const char* func, int line); -int netif_rx_debug(struct sk_buff *skb, const char* func, int line); +int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line); struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask, const char *func, int line); struct sk_buff * dev_alloc_skb_debug(unsigned int length, @@ -151,7 +151,7 @@ #undef dev_queue_xmit #undef kfree_skb #undef kfree_skb_fast -#undef netif_rx +#undef netif_receive_skb #undef pskb_copy #undef skb_clone #undef skb_copy @@ -168,8 +168,8 @@ skb_copy_expand_debug(_skb, _newheadroom, _newtailroom, _gfp_mask, __func__, __LINE__) #define vlan_hwaccel_receive_skb(_skb, _grp, _tag) \ vlan_hwaccel_receive_skb_debug(_skb, _grp, _tag, __func__, __LINE__) -#define netif_rx(_skb) \ - netif_rx_debug(_skb, __func__, __LINE__) +#define netif_receive_skb(_skb) \ + netif_receive_skb_debug(_skb, __func__, __LINE__) #define alloc_skb(_length, _gfp_mask) \ alloc_skb_debug(_length, _gfp_mask, __func__, __LINE__) #define dev_alloc_skb(_length) \