mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-03 18:00:17 +02:00
c177eb0d43
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23971 3c298f89-4303-0410-b956-a3cf2f4a3e73
537 lines
17 KiB
Diff
537 lines
17 KiB
Diff
--- a/ath/if_ath.c
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+++ b/ath/if_ath.c
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@@ -184,7 +184,11 @@ static void ath_recv_mgmt(struct ieee802
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struct sk_buff *, int, int, u_int64_t);
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static void ath_setdefantenna(struct ath_softc *, u_int);
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static struct ath_txq *ath_txq_setup(struct ath_softc *, int, int);
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-static void ath_rx_tasklet(TQUEUE_ARG);
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+static int ath_rx_poll(struct napi_struct *napi, int budget);
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+#else
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+static int ath_rx_poll(struct net_device *dev, int *budget);
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+#endif
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static int ath_hardstart(struct sk_buff *, struct net_device *);
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static int ath_mgtstart(struct ieee80211com *, struct sk_buff *);
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#ifdef ATH_SUPERG_COMP
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@@ -376,6 +380,9 @@ static u_int32_t ath_set_clamped_maxtxpo
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u_int32_t new_clamped_maxtxpower);
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static u_int32_t ath_get_real_maxtxpower(struct ath_softc *sc);
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+static void ath_poll_disable(struct net_device *dev);
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+static void ath_poll_enable(struct net_device *dev);
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+
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/* calibrate every 30 secs in steady state but check every second at first. */
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static int ath_calinterval = ATH_SHORT_CALINTERVAL;
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static int ath_countrycode = CTRY_DEFAULT; /* country code */
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@@ -547,7 +554,6 @@ ath_attach(u_int16_t devid, struct net_d
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atomic_set(&sc->sc_txbuf_counter, 0);
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- ATH_INIT_TQUEUE(&sc->sc_rxtq, ath_rx_tasklet, dev);
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ATH_INIT_TQUEUE(&sc->sc_txtq, ath_tx_tasklet, dev);
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ATH_INIT_TQUEUE(&sc->sc_bmisstq, ath_bmiss_tasklet, dev);
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ATH_INIT_TQUEUE(&sc->sc_bstucktq, ath_bstuck_tasklet, dev);
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@@ -821,6 +827,12 @@ ath_attach(u_int16_t devid, struct net_d
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dev->set_mac_address = ath_set_mac_address;
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dev->change_mtu = ath_change_mtu;
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dev->tx_queue_len = ATH_TXBUF - ATH_TXBUF_MGT_RESERVED;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ netif_napi_add(dev, &sc->sc_napi, ath_rx_poll, 64);
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+#else
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+ dev->poll = ath_rx_poll;
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+ dev->weight = 64;
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+#endif
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#ifdef USE_HEADERLEN_RESV
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dev->hard_header_len += sizeof(struct ieee80211_qosframe) +
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sizeof(struct llc) +
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@@ -2220,6 +2232,7 @@ ath_intr(int irq, void *dev_id, struct p
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(status & HAL_INT_GLOBAL) ? " HAL_INT_GLOBAL" : ""
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);
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+ sc->sc_isr = status;
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status &= sc->sc_imask; /* discard unasked for bits */
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/* As soon as we know we have a real interrupt we intend to service,
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* we will check to see if we need an initial hardware TSF reading.
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@@ -2277,7 +2290,21 @@ ath_intr(int irq, void *dev_id, struct p
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}
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if (status & (HAL_INT_RX | HAL_INT_RXPHY)) {
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ath_uapsd_processtriggers(sc, hw_tsf);
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- ATH_SCHEDULE_TQUEUE(&sc->sc_rxtq, &needmark);
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+ sc->sc_isr &= ~HAL_INT_RX;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ if (netif_rx_schedule_prep(dev, &sc->sc_napi))
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+#else
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+ if (netif_rx_schedule_prep(dev))
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+#endif
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+ {
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+ sc->sc_imask &= ~HAL_INT_RX;
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+ ath_hal_intrset(ah, sc->sc_imask);
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ __netif_rx_schedule(dev, &sc->sc_napi);
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+#else
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+ __netif_rx_schedule(dev);
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+#endif
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+ }
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}
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if (status & HAL_INT_TX) {
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#ifdef ATH_SUPERG_DYNTURBO
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@@ -2303,6 +2330,11 @@ ath_intr(int irq, void *dev_id, struct p
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}
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}
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#endif
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+ /* disable transmit interrupt */
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+ sc->sc_isr &= ~HAL_INT_TX;
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+ ath_hal_intrset(ah, sc->sc_imask & ~HAL_INT_TX);
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+ sc->sc_imask &= ~HAL_INT_TX;
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+
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ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark);
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}
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if (status & HAL_INT_BMISS) {
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@@ -2515,6 +2547,7 @@ ath_init(struct net_device *dev)
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if (sc->sc_tx99 != NULL)
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sc->sc_tx99->start(sc->sc_tx99);
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#endif
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+ ath_poll_enable(dev);
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done:
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ATH_UNLOCK(sc);
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@@ -2555,6 +2588,9 @@ ath_stop_locked(struct net_device *dev)
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if (sc->sc_tx99 != NULL)
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sc->sc_tx99->stop(sc->sc_tx99);
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#endif
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ ath_poll_disable(dev);
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+#endif
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netif_stop_queue(dev); /* XXX re-enabled by ath_newstate */
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dev->flags &= ~IFF_RUNNING; /* NB: avoid recursion */
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ieee80211_stop_running(ic); /* stop all VAPs */
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@@ -4013,12 +4049,47 @@ ath_key_set(struct ieee80211vap *vap, co
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return ath_keyset(sc, k, mac, vap->iv_bss);
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}
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+static void ath_poll_disable(struct net_device *dev)
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+{
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+ struct ath_softc *sc = dev->priv;
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+
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+ /*
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+ * XXX Using in_softirq is not right since we might
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+ * be called from other soft irq contexts than
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+ * ath_rx_poll
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+ */
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+ if (!in_softirq()) {
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ napi_disable(&sc->sc_napi);
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+#else
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+ netif_poll_disable(dev);
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+#endif
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+ }
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+}
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+
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+static void ath_poll_enable(struct net_device *dev)
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+{
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+ struct ath_softc *sc = dev->priv;
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+
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+ /* NB: see above */
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+ if (!in_softirq()) {
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ napi_enable(&sc->sc_napi);
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+#else
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+ netif_poll_enable(dev);
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+#endif
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+ }
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+}
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+
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+
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/*
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* Block/unblock tx+rx processing while a key change is done.
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* We assume the caller serializes key management operations
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* so we only need to worry about synchronization with other
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* uses that originate in the driver.
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*/
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+#define IS_UP(_dev) \
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+ (((_dev)->flags & (IFF_RUNNING|IFF_UP)) == (IFF_RUNNING|IFF_UP))
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static void
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ath_key_update_begin(struct ieee80211vap *vap)
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{
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@@ -4032,14 +4103,9 @@ ath_key_update_begin(struct ieee80211vap
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* When called from the rx tasklet we cannot use
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* tasklet_disable because it will block waiting
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* for us to complete execution.
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- *
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- * XXX Using in_softirq is not right since we might
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- * be called from other soft irq contexts than
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- * ath_rx_tasklet.
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*/
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- if (!in_softirq())
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- tasklet_disable(&sc->sc_rxtq);
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- netif_stop_queue(dev);
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+ if (IS_UP(vap->iv_dev))
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+ netif_stop_queue(dev);
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}
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static void
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@@ -4051,9 +4117,9 @@ ath_key_update_end(struct ieee80211vap *
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#endif
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DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n");
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- netif_wake_queue(dev);
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- if (!in_softirq()) /* NB: see above */
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- tasklet_enable(&sc->sc_rxtq);
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+
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+ if (IS_UP(vap->iv_dev))
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+ netif_wake_queue(dev);
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}
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/*
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@@ -6360,15 +6426,25 @@ ath_setdefantenna(struct ath_softc *sc,
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sc->sc_rxotherant = 0;
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}
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-static void
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-ath_rx_tasklet(TQUEUE_ARG data)
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+static int
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ath_rx_poll(struct napi_struct *napi, int budget)
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+#else
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+ath_rx_poll(struct net_device *dev, int *budget)
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+#endif
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{
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#define PA2DESC(_sc, _pa) \
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((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \
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((_pa) - (_sc)->sc_rxdma.dd_desc_paddr)))
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- struct net_device *dev = (struct net_device *)data;
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- struct ath_buf *bf;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ struct ath_softc *sc = container_of(napi, struct ath_softc, sc_napi);
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+ struct net_device *dev = sc->sc_dev;
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+ u_int rx_limit = budget;
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+#else
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struct ath_softc *sc = dev->priv;
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+ u_int rx_limit = min(dev->quota, *budget);
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+#endif
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+ struct ath_buf *bf;
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struct ieee80211com *ic = &sc->sc_ic;
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struct ath_hal *ah = sc ? sc->sc_ah : NULL;
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struct ath_desc *ds;
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@@ -6378,8 +6454,10 @@ ath_rx_tasklet(TQUEUE_ARG data)
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unsigned int len;
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int type;
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u_int phyerr;
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+ u_int processed = 0, early_stop = 0;
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DPRINTF(sc, ATH_DEBUG_RX_PROC, "invoked\n");
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+process_rx_again:
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do {
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bf = STAILQ_FIRST(&sc->sc_rxbuf);
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if (bf == NULL) { /* XXX ??? can this happen */
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@@ -6403,6 +6481,15 @@ ath_rx_tasklet(TQUEUE_ARG data)
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/* NB: never process the self-linked entry at the end */
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break;
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}
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+
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+ if (rx_limit-- < 2) {
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+ early_stop = 1;
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+ break;
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+ }
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ processed++;
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+#endif
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+
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skb = bf->bf_skb;
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if (skb == NULL) {
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EPRINTF(sc, "Dropping; buffer contains NULL skbuff.\n");
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@@ -6450,6 +6537,7 @@ ath_rx_tasklet(TQUEUE_ARG data)
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sc->sc_stats.ast_rx_phyerr++;
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phyerr = rs->rs_phyerr & 0x1f;
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sc->sc_stats.ast_rx_phy[phyerr]++;
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+ goto rx_next;
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}
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if (rs->rs_status & HAL_RXERR_DECRYPT) {
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/*
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@@ -6645,9 +6733,39 @@ rx_next:
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STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
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ATH_RXBUF_UNLOCK_IRQ(sc);
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} while (ath_rxbuf_init(sc, bf) == 0);
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+ if (!early_stop) {
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+ unsigned long flags;
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+ /* Check if more data is received while we were
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+ * processing the descriptor chain.
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+ */
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+ local_irq_save(flags);
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+ if (sc->sc_isr & HAL_INT_RX) {
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+ u_int64_t hw_tsf = ath_hal_gettsf64(ah);
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+ sc->sc_isr &= ~HAL_INT_RX;
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+ local_irq_restore(flags);
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+ ath_uapsd_processtriggers(sc, hw_tsf);
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+ goto process_rx_again;
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+ }
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+ local_irq_restore(flags);
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+ }
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+
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ netif_rx_complete(dev, napi);
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+#else
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+ netif_rx_complete(dev);
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+ *budget -= processed;
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+ dev->quota -= processed;
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+#endif
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+ sc->sc_imask |= HAL_INT_RX;
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+ ath_hal_intrset(ah, sc->sc_imask);
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/* rx signal state monitoring */
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ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ return processed;
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+#else
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+ return early_stop;
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+#endif
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#undef PA2DESC
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}
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@@ -8298,12 +8416,24 @@ ath_tx_tasklet_q0(TQUEUE_ARG data)
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{
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struct net_device *dev = (struct net_device *)data;
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struct ath_softc *sc = dev->priv;
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+ unsigned long flags;
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+process_tx_again:
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if (txqactive(sc->sc_ah, 0))
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ath_tx_processq(sc, &sc->sc_txq[0]);
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if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum))
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ath_tx_processq(sc, sc->sc_cabq);
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+ local_irq_save(flags);
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+ if (sc->sc_isr & HAL_INT_TX) {
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+ sc->sc_isr &= ~HAL_INT_TX;
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+ local_irq_restore(flags);
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+ goto process_tx_again;
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+ }
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+ sc->sc_imask |= HAL_INT_TX;
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+ ath_hal_intrset(sc->sc_ah, sc->sc_imask);
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+ local_irq_restore(flags);
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+
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netif_wake_queue(dev);
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if (sc->sc_softled)
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@@ -8319,7 +8449,9 @@ ath_tx_tasklet_q0123(TQUEUE_ARG data)
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{
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struct net_device *dev = (struct net_device *)data;
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struct ath_softc *sc = dev->priv;
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+ unsigned long flags;
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+process_tx_again:
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/*
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* Process each active queue.
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*/
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@@ -8340,6 +8472,16 @@ ath_tx_tasklet_q0123(TQUEUE_ARG data)
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if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum))
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ath_tx_processq(sc, sc->sc_uapsdq);
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+ local_irq_save(flags);
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+ if (sc->sc_isr & HAL_INT_TX) {
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+ sc->sc_isr &= ~HAL_INT_TX;
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+ local_irq_restore(flags);
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+ goto process_tx_again;
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+ }
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+ sc->sc_imask |= HAL_INT_TX;
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+ ath_hal_intrset(sc->sc_ah, sc->sc_imask);
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+ local_irq_restore(flags);
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+
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netif_wake_queue(dev);
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if (sc->sc_softled)
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@@ -8355,13 +8497,25 @@ ath_tx_tasklet(TQUEUE_ARG data)
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struct net_device *dev = (struct net_device *)data;
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struct ath_softc *sc = dev->priv;
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unsigned int i;
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+ unsigned long flags;
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/* Process each active queue. This includes sc_cabq, sc_xrtq and
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* sc_uapsdq */
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+process_tx_again:
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for (i = 0; i < HAL_NUM_TX_QUEUES; i++)
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if (ATH_TXQ_SETUP(sc, i) && txqactive(sc->sc_ah, i))
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ath_tx_processq(sc, &sc->sc_txq[i]);
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+ local_irq_save(flags);
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+ if (sc->sc_isr & HAL_INT_TX) {
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+ sc->sc_isr &= ~HAL_INT_TX;
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+ local_irq_restore(flags);
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+ goto process_tx_again;
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+ }
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+ sc->sc_imask |= HAL_INT_TX;
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+ ath_hal_intrset(sc->sc_ah, sc->sc_imask);
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+ local_irq_restore(flags);
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+
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netif_wake_queue(dev);
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if (sc->sc_softled)
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@@ -10296,9 +10450,9 @@ ath_change_mtu(struct net_device *dev, i
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dev->mtu = mtu;
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if ((dev->flags & IFF_RUNNING) && !sc->sc_invalid) {
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/* NB: the rx buffers may need to be reallocated */
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- tasklet_disable(&sc->sc_rxtq);
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+ ath_poll_disable(dev);
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error = ath_reset(dev);
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- tasklet_enable(&sc->sc_rxtq);
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+ ath_poll_enable(dev);
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}
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ATH_UNLOCK(sc);
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--- a/ath/if_athvar.h
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+++ b/ath/if_athvar.h
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@@ -53,6 +53,10 @@
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# include <asm/bitops.h>
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#endif
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+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
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+#define irqs_disabled() 0
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+#endif
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+
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/*
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* Deduce if tasklets are available. If not then
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* fall back to using the immediate work queue.
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@@ -616,6 +620,9 @@ struct ath_rp {
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struct ath_softc {
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struct ieee80211com sc_ic; /* NB: must be first */
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struct net_device *sc_dev;
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
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+ struct napi_struct sc_napi;
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+#endif
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void __iomem *sc_iobase; /* address of the device */
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struct semaphore sc_lock; /* dev-level lock */
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struct net_device_stats sc_devstats; /* device statistics */
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@@ -730,7 +737,6 @@ struct ath_softc {
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struct ath_buf *sc_rxbufcur; /* current rx buffer */
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u_int32_t *sc_rxlink; /* link ptr in last RX desc */
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spinlock_t sc_rxbuflock;
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- struct ATH_TQ_STRUCT sc_rxtq; /* rx intr tasklet */
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struct ATH_TQ_STRUCT sc_rxorntq; /* rxorn intr tasklet */
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u_int8_t sc_defant; /* current default antenna */
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u_int8_t sc_rxotherant; /* RXs on non-default antenna */
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@@ -745,6 +751,7 @@ struct ath_softc {
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u_int sc_txintrperiod; /* tx interrupt batching */
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struct ath_txq sc_txq[HAL_NUM_TX_QUEUES];
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struct ath_txq *sc_ac2q[WME_NUM_AC]; /* WME AC -> h/w qnum */
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+ HAL_INT sc_isr; /* unmasked ISR state */
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struct ATH_TQ_STRUCT sc_txtq; /* tx intr tasklet */
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u_int8_t sc_grppoll_str[GRPPOLL_RATE_STR_LEN];
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struct ath_descdma sc_bdma; /* beacon descriptors */
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@@ -858,6 +865,8 @@ typedef void (*ath_callback) (struct ath
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#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)
|
|
--- a/net80211/ieee80211_input.c
|
|
+++ b/net80211/ieee80211_input.c
|
|
@@ -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) {
|
|
- /* 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 */
|
|
@@ -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;
|
|
- 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 */
|
|
@@ -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;
|
|
- 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 */
|
|
--- a/net80211/ieee80211_monitor.c
|
|
+++ b/net80211/ieee80211_monitor.c
|
|
@@ -584,8 +584,8 @@ ieee80211_input_monitor(struct ieee80211
|
|
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)
|
|
--- a/net80211/ieee80211_skb.c
|
|
+++ b/net80211/ieee80211_skb.c
|
|
@@ -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
|
|
@@ -638,8 +638,8 @@ int vlan_hwaccel_receive_skb_debug(stru
|
|
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,
|
|
@@ -760,7 +760,7 @@ struct sk_buff * skb_copy_expand_debug(c
|
|
}
|
|
|
|
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);
|
|
--- a/net80211/ieee80211_skb.h
|
|
+++ b/net80211/ieee80211_skb.h
|
|
@@ -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);
|
|
-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 @@ struct sk_buff * skb_copy_expand_debug(c
|
|
#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 @@ 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__)
|
|
-#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) \
|