mac80211: merge Pat Erley's mac80211.sh from openwrt-devel@ with many cleanups and...
[openwrt.git] / package / madwifi / patches / 300-napi_polling.patch
index 609e74c..bc62d7b 100644 (file)
@@ -1,6 +1,6 @@
 --- a/ath/if_ath.c
 +++ b/ath/if_ath.c
-@@ -184,7 +184,11 @@
+@@ -184,7 +184,11 @@ static void ath_recv_mgmt(struct ieee802
        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);
@@ -13,7 +13,7 @@
  static int ath_hardstart(struct sk_buff *, struct net_device *);
  static int ath_mgtstart(struct ieee80211com *, struct sk_buff *);
  #ifdef ATH_SUPERG_COMP
-@@ -376,6 +380,9 @@
+@@ -376,6 +380,9 @@ static u_int32_t ath_set_clamped_maxtxpo
                u_int32_t new_clamped_maxtxpower);
  static u_int32_t ath_get_real_maxtxpower(struct ath_softc *sc);
  
@@ -23,7 +23,7 @@
  /* calibrate every 30 secs in steady state but check every second at first. */
  static int ath_calinterval = ATH_SHORT_CALINTERVAL;
  static int ath_countrycode = CTRY_DEFAULT;    /* country code */
-@@ -547,7 +554,6 @@
+@@ -547,7 +554,6 @@ ath_attach(u_int16_t devid, struct net_d
  
        atomic_set(&sc->sc_txbuf_counter, 0);
  
@@ -31,7 +31,7 @@
        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);
-@@ -821,6 +827,12 @@
+@@ -821,6 +827,12 @@ ath_attach(u_int16_t devid, struct net_d
        dev->set_mac_address = ath_set_mac_address;
        dev->change_mtu = ath_change_mtu;
        dev->tx_queue_len = ATH_TXBUF - ATH_TXBUF_MGT_RESERVED;
@@ -44,7 +44,7 @@
  #ifdef USE_HEADERLEN_RESV
        dev->hard_header_len += sizeof(struct ieee80211_qosframe) +
                                sizeof(struct llc) +
-@@ -2220,6 +2232,7 @@
+@@ -2220,6 +2232,7 @@ ath_intr(int irq, void *dev_id, struct p
                (status & HAL_INT_GLOBAL)       ? " HAL_INT_GLOBAL"     : ""
                );
  
@@ -52,7 +52,7 @@
        status &= sc->sc_imask;                 /* discard unasked for bits */
        /* As soon as we know we have a real interrupt we intend to service, 
         * we will check to see if we need an initial hardware TSF reading. 
-@@ -2277,7 +2290,23 @@
+@@ -2277,7 +2290,21 @@ ath_intr(int irq, void *dev_id, struct p
                }
                if (status & (HAL_INT_RX | HAL_INT_RXPHY)) {
                        ath_uapsd_processtriggers(sc, hw_tsf);
 +                      if (netif_rx_schedule_prep(dev))
 +#endif
 +                      {
-+#ifndef ATH_PRECISE_TSF
 +                              sc->sc_imask &= ~HAL_INT_RX;
 +                              ath_hal_intrset(ah, sc->sc_imask);
-+#endif
 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 +                              __netif_rx_schedule(dev, &sc->sc_napi);
 +#else
@@ -77,7 +75,7 @@
                }
                if (status & HAL_INT_TX) {
  #ifdef ATH_SUPERG_DYNTURBO
-@@ -2303,6 +2332,11 @@
+@@ -2303,6 +2330,11 @@ ath_intr(int irq, void *dev_id, struct p
                                }
                        }
  #endif
@@ -89,7 +87,7 @@
                        ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark);
                }
                if (status & HAL_INT_BMISS) {
-@@ -2515,6 +2549,7 @@
+@@ -2515,6 +2547,7 @@ ath_init(struct net_device *dev)
        if (sc->sc_tx99 != NULL)
                sc->sc_tx99->start(sc->sc_tx99);
  #endif
@@ -97,7 +95,7 @@
  
  done:
        ATH_UNLOCK(sc);
-@@ -2555,6 +2590,9 @@
+@@ -2555,6 +2588,9 @@ ath_stop_locked(struct net_device *dev)
                if (sc->sc_tx99 != NULL)
                        sc->sc_tx99->stop(sc->sc_tx99);
  #endif
                netif_stop_queue(dev);  /* XXX re-enabled by ath_newstate */
                dev->flags &= ~IFF_RUNNING;     /* NB: avoid recursion */
                ieee80211_stop_running(ic);     /* stop all VAPs */
-@@ -4013,12 +4051,47 @@
+@@ -4013,12 +4049,47 @@ ath_key_set(struct ieee80211vap *vap, co
        return ath_keyset(sc, k, mac, vap->iv_bss);
  }
  
  static void
  ath_key_update_begin(struct ieee80211vap *vap)
  {
-@@ -4032,14 +4105,9 @@
+@@ -4032,14 +4103,9 @@ ath_key_update_begin(struct ieee80211vap
         * When called from the rx tasklet we cannot use
         * tasklet_disable because it will block waiting
         * for us to complete execution.
  }
  
  static void
-@@ -4051,9 +4119,9 @@
+@@ -4051,9 +4117,9 @@ ath_key_update_end(struct ieee80211vap *
  #endif
  
        DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n");
  }
  
  /*
-@@ -6360,15 +6428,25 @@
+@@ -6360,15 +6426,25 @@ ath_setdefantenna(struct ath_softc *sc, 
        sc->sc_rxotherant = 0;
  }
  
        struct ieee80211com *ic = &sc->sc_ic;
        struct ath_hal *ah = sc ? sc->sc_ah : NULL;
        struct ath_desc *ds;
-@@ -6378,8 +6456,10 @@
+@@ -6378,8 +6454,10 @@ ath_rx_tasklet(TQUEUE_ARG data)
        unsigned int len;
        int type;
        u_int phyerr;
        do {
                bf = STAILQ_FIRST(&sc->sc_rxbuf);
                if (bf == NULL) {               /* XXX ??? can this happen */
-@@ -6403,6 +6483,15 @@
+@@ -6403,6 +6481,15 @@ ath_rx_tasklet(TQUEUE_ARG data)
                        /* NB: never process the self-linked entry at the end */
                        break;
                }
 +
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
-+              processed++;
-+#endif
-+              if (rx_limit-- < 0) {
++              if (rx_limit-- < 2) {
 +                      early_stop = 1;
 +                      break;
 +              }
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++              processed++;
++#endif
 +
                skb = bf->bf_skb;
                if (skb == NULL) {
                        EPRINTF(sc, "Dropping; buffer contains NULL skbuff.\n");
-@@ -6450,6 +6539,7 @@
+@@ -6450,6 +6537,7 @@ ath_rx_tasklet(TQUEUE_ARG data)
                                sc->sc_stats.ast_rx_phyerr++;
                                phyerr = rs->rs_phyerr & 0x1f;
                                sc->sc_stats.ast_rx_phy[phyerr]++;
                        }
                        if (rs->rs_status & HAL_RXERR_DECRYPT) {
                                /*
-@@ -6645,9 +6735,43 @@
+@@ -6645,9 +6733,39 @@ rx_next:
                STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
                ATH_RXBUF_UNLOCK_IRQ(sc);
        } while (ath_rxbuf_init(sc, bf) == 0);
 +              /* Check if more data is received while we were
 +               * processing the descriptor chain.
 +               */
-+#ifndef ATH_PRECISE_TSF
 +              local_irq_save(flags);
 +              if (sc->sc_isr & HAL_INT_RX) {
 +                      u_int64_t hw_tsf = ath_hal_gettsf64(ah);
 +                      ath_uapsd_processtriggers(sc, hw_tsf);
 +                      goto process_rx_again;
 +              }
-+#endif
-+#ifndef ATH_PRECISE_TSF
-+              sc->sc_imask |= HAL_INT_RX;
-+              ath_hal_intrset(ah, sc->sc_imask);
 +              local_irq_restore(flags);
-+#endif
 +      }
 +
 +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
 +      *budget -= processed;
 +      dev->quota -= processed;
 +#endif
++      sc->sc_imask |= HAL_INT_RX;
++      ath_hal_intrset(ah, sc->sc_imask);
  
        /* rx signal state monitoring */
        ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
  #undef PA2DESC
  }
  
-@@ -8298,12 +8422,24 @@
+@@ -8298,12 +8416,24 @@ ath_tx_tasklet_q0(TQUEUE_ARG data)
  {
        struct net_device *dev = (struct net_device *)data;
        struct ath_softc *sc = dev->priv;
        netif_wake_queue(dev);
  
        if (sc->sc_softled)
-@@ -8319,7 +8455,9 @@
+@@ -8319,7 +8449,9 @@ ath_tx_tasklet_q0123(TQUEUE_ARG data)
  {
        struct net_device *dev = (struct net_device *)data;
        struct ath_softc *sc = dev->priv;
        /*
         * Process each active queue.
         */
-@@ -8340,6 +8478,16 @@
+@@ -8340,6 +8472,16 @@ ath_tx_tasklet_q0123(TQUEUE_ARG data)
        if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum))
                ath_tx_processq(sc, sc->sc_uapsdq);
  
        netif_wake_queue(dev);
  
        if (sc->sc_softled)
-@@ -8355,13 +8503,25 @@
+@@ -8355,13 +8497,25 @@ ath_tx_tasklet(TQUEUE_ARG data)
        struct net_device *dev = (struct net_device *)data;
        struct ath_softc *sc = dev->priv;
        unsigned int i;
        netif_wake_queue(dev);
  
        if (sc->sc_softled)
-@@ -10296,9 +10456,9 @@
+@@ -10296,9 +10450,9 @@ ath_change_mtu(struct net_device *dev, i
        dev->mtu = mtu;
        if ((dev->flags & IFF_RUNNING) && !sc->sc_invalid) {
                /* NB: the rx buffers may need to be reallocated */
  /*
   * Deduce if tasklets are available.  If not then
   * fall back to using the immediate work queue.
-@@ -616,6 +620,9 @@
+@@ -616,6 +620,9 @@ struct ath_rp {
  struct ath_softc {
        struct ieee80211com sc_ic;              /* NB: must be first */
        struct net_device *sc_dev;
        void __iomem *sc_iobase;                /* address of the device */
        struct semaphore sc_lock;               /* dev-level lock */
        struct net_device_stats sc_devstats;    /* device statistics */
-@@ -730,7 +737,6 @@
+@@ -730,7 +737,6 @@ struct ath_softc {
        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_rxorntq;        /* rxorn intr tasklet */
        u_int8_t sc_defant;                     /* current default antenna */
        u_int8_t sc_rxotherant;                 /* RXs on non-default antenna */
-@@ -745,6 +751,7 @@
+@@ -745,6 +751,7 @@ struct ath_softc {
        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 */
        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 */
-@@ -858,6 +865,8 @@
+@@ -858,6 +865,8 @@ typedef void (*ath_callback) (struct ath
  #define       ATH_TXBUF_LOCK_CHECK(_sc)
  #endif
  
  #define       ATH_RXBUF_LOCK_DESTROY(_sc)
 --- a/net80211/ieee80211_input.c
 +++ b/net80211/ieee80211_input.c
-@@ -1198,7 +1198,7 @@
+@@ -1198,7 +1198,7 @@ ieee80211_deliver_data(struct ieee80211_
                        /* 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) {
                                 * device was too busy */
                                if (ni_tmp != NULL) {
                                        /* node reference was leaked */
-@@ -1209,8 +1209,8 @@
+@@ -1209,8 +1209,8 @@ ieee80211_deliver_data(struct ieee80211_
                        skb = NULL; /* SKB is no longer ours */
                } else {
                        struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
                                 * device was too busy */
                                if (ni_tmp != NULL) {
                                        /* node reference was leaked */
-@@ -2322,8 +2322,8 @@
+@@ -2322,8 +2322,8 @@ forward_mgmt_to_app(struct ieee80211vap 
                skb1->protocol = __constant_htons(0x0019);  /* ETH_P_80211_RAW */
  
                ni_tmp = SKB_CB(skb1)->ni;
                                /* node reference was leaked */
 --- a/net80211/ieee80211_monitor.c
 +++ b/net80211/ieee80211_monitor.c
-@@ -584,8 +584,8 @@
+@@ -584,8 +584,8 @@ ieee80211_input_monitor(struct ieee80211
                        skb1->protocol = 
                                __constant_htons(0x0019); /* ETH_P_80211_RAW */
  
  #undef pskb_copy
  #undef skb_clone
  #undef skb_copy
-@@ -638,8 +638,8 @@
+@@ -638,8 +638,8 @@ int  vlan_hwaccel_receive_skb_debug(stru
                grp, vlan_tag);
  }
  
  }
  
  struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
-@@ -760,7 +760,7 @@
+@@ -760,7 +760,7 @@ struct sk_buff * skb_copy_expand_debug(c
  }
  
  EXPORT_SYMBOL(vlan_hwaccel_receive_skb_debug);
  EXPORT_SYMBOL(skb_clone_debug);
 --- a/net80211/ieee80211_skb.h
 +++ b/net80211/ieee80211_skb.h
-@@ -116,7 +116,7 @@
+@@ -116,7 +116,7 @@ int ieee80211_skb_references(void);
  int  vlan_hwaccel_receive_skb_debug(struct sk_buff *skb, 
                                    struct vlan_group *grp, unsigned short vlan_tag, 
                                    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 @@
+@@ -151,7 +151,7 @@ struct sk_buff * skb_copy_expand_debug(c
  #undef dev_queue_xmit
  #undef kfree_skb
  #undef kfree_skb_fast
  #undef pskb_copy
  #undef skb_clone
  #undef skb_copy
-@@ -168,8 +168,8 @@
+@@ -168,8 +168,8 @@ struct sk_buff * skb_copy_expand_debug(c
        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__)
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