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-rw-r--r--package/madwifi/patches/329-new_napi.patch237
1 files changed, 237 insertions, 0 deletions
diff --git a/package/madwifi/patches/329-new_napi.patch b/package/madwifi/patches/329-new_napi.patch
new file mode 100644
index 0000000000..182d83d9cc
--- /dev/null
+++ b/package/madwifi/patches/329-new_napi.patch
@@ -0,0 +1,237 @@
+Index: madwifi-trunk-r3314/ath/if_ath.c
+===================================================================
+--- madwifi-trunk-r3314.orig/ath/if_ath.c 2008-01-31 04:25:11.617671781 +0100
++++ madwifi-trunk-r3314/ath/if_ath.c 2008-01-31 05:06:04.606254148 +0100
+@@ -184,7 +184,11 @@
+ 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);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++static int ath_rx_poll(struct napi_struct *napi, int budget);
++#else
+ static int ath_rx_poll(struct net_device *dev, int *budget);
++#endif
+ static int ath_hardstart(struct sk_buff *, struct net_device *);
+ static int ath_mgtstart(struct ieee80211com *, struct sk_buff *);
+ #ifdef ATH_SUPERG_COMP
+@@ -374,6 +378,9 @@
+ u_int32_t new_clamped_maxtxpower);
+ static u_int32_t ath_get_real_maxtxpower(struct ath_softc *sc);
+
++static void ath_poll_disable(struct net_device *dev);
++static void ath_poll_enable(struct net_device *dev);
++
+ /* 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 */
+@@ -818,8 +825,12 @@
+ dev->set_mac_address = ath_set_mac_address;
+ dev->change_mtu = ath_change_mtu;
+ dev->tx_queue_len = ATH_TXBUF - ATH_TXBUF_MGT_RESERVED;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ netif_napi_add(dev, &sc->sc_napi, ath_rx_poll, 64);
++#else
+ dev->poll = ath_rx_poll;
+ dev->weight = 64;
++#endif
+ #ifdef USE_HEADERLEN_RESV
+ dev->hard_header_len += sizeof(struct ieee80211_qosframe) +
+ sizeof(struct llc) +
+@@ -2268,12 +2279,21 @@
+ if (status & (HAL_INT_RX | HAL_INT_RXPHY)) {
+ ath_uapsd_processtriggers(sc, hw_tsf);
+ sc->sc_isr &= ~HAL_INT_RX;
+- if (netif_rx_schedule_prep(dev)) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ if (netif_rx_schedule_prep(dev, &sc->sc_napi))
++#else
++ 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
+ __netif_rx_schedule(dev);
++#endif
+ }
+ }
+ if (status & HAL_INT_TX) {
+@@ -2557,6 +2577,9 @@
+ if (sc->sc_tx99 != NULL)
+ sc->sc_tx99->stop(sc->sc_tx99);
+ #endif
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ ath_poll_disable(dev);
++#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 */
+@@ -4015,6 +4038,39 @@
+ return ath_keyset(sc, k, mac, vap->iv_bss);
+ }
+
++static void ath_poll_disable(struct net_device *dev)
++{
++ struct ath_softc *sc = dev->priv;
++
++ /*
++ * XXX Using in_softirq is not right since we might
++ * be called from other soft irq contexts than
++ * ath_rx_poll
++ */
++ if (!in_softirq()) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ napi_disable(&sc->sc_napi);
++#else
++ netif_poll_disable(dev);
++#endif
++ }
++}
++
++static void ath_poll_enable(struct net_device *dev)
++{
++ struct ath_softc *sc = dev->priv;
++
++ /* NB: see above */
++ if (!in_softirq()) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ napi_enable(&sc->sc_napi);
++#else
++ netif_poll_enable(dev);
++#endif
++ }
++}
++
++
+ /*
+ * Block/unblock tx+rx processing while a key change is done.
+ * We assume the caller serializes key management operations
+@@ -4032,13 +4088,8 @@
+ * When called from the rx tasklet we cannot use
+ * tasklet_disable because it will block waiting
+ * for us to complete execution.
+- *
+- * XXX Using in_softirq is not right since we might
+- * be called from other soft irq contexts than
+- * ath_rx_poll
+ */
+- if (!in_softirq())
+- netif_poll_disable(dev);
++ ath_poll_disable(dev);
+ netif_stop_queue(dev);
+ }
+
+@@ -4050,8 +4101,7 @@
+
+ DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n");
+ netif_wake_queue(dev);
+- if (!in_softirq()) /* NB: see above */
+- netif_poll_enable(dev);
++ ath_poll_enable(dev);
+ }
+
+ /*
+@@ -6359,24 +6409,34 @@
+ }
+
+ static int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ath_rx_poll(struct napi_struct *napi, int budget)
++#else
+ ath_rx_poll(struct net_device *dev, int *budget)
++#endif
+ {
+ #define PA2DESC(_sc, _pa) \
+ ((struct ath_desc *)((caddr_t)(_sc)->sc_rxdma.dd_desc + \
+ ((_pa) - (_sc)->sc_rxdma.dd_desc_paddr)))
+- struct ath_buf *bf;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ struct ath_softc *sc = container_of(napi, struct ath_softc, sc_napi);
++ struct net_device *dev = sc->sc_dev;
++ u_int rx_limit = budget;
++#else
+ struct ath_softc *sc = dev->priv;
++ u_int rx_limit = dev->quota;
++#endif
+ struct ieee80211com *ic = &sc->sc_ic;
+ struct ath_hal *ah = sc ? sc->sc_ah : NULL;
+ struct ath_desc *ds;
+ struct ath_rx_status *rs;
+ struct sk_buff *skb = NULL;
+ struct ieee80211_node *ni;
++ struct ath_buf *bf;
+ unsigned int len;
+ int type;
+ u_int phyerr;
+ u_int processed = 0, early_stop = 0;
+- u_int rx_limit = dev->quota;
+ u_int mic_fail = 0;
+
+ DPRINTF(sc, ATH_DEBUG_RX_PROC, "invoked\n");
+@@ -6405,7 +6465,9 @@
+ break;
+ }
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+ processed++;
++#endif
+ if (rx_limit-- < 0) {
+ early_stop = 1;
+ break;
+@@ -6675,8 +6737,6 @@
+ 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);
+@@ -6684,11 +6744,17 @@
+ #endif
+ }
+
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ netif_rx_complete(dev, napi);
++#else
++ netif_rx_complete(dev);
+ *budget -= processed;
++#endif
+
+ /* rx signal state monitoring, only necessary/applicable for sta mode */
+ if (sc->sc_opmode == HAL_M_STA)
+ ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
++
+ return early_stop;
+ #undef PA2DESC
+ }
+@@ -10395,9 +10461,9 @@
+ dev->mtu = mtu;
+ if ((dev->flags & IFF_RUNNING) && !sc->sc_invalid) {
+ /* NB: the rx buffers may need to be reallocated */
+- netif_poll_disable(dev);
++ ath_poll_disable(dev);
+ error = ath_reset(dev);
+- netif_poll_enable(dev);
++ ath_poll_enable(dev);
+ }
+ ATH_UNLOCK(sc);
+
+Index: madwifi-trunk-r3314/ath/if_athvar.h
+===================================================================
+--- madwifi-trunk-r3314.orig/ath/if_athvar.h 2008-01-31 04:25:14.001807644 +0100
++++ madwifi-trunk-r3314/ath/if_athvar.h 2008-01-31 04:32:31.858759693 +0100
+@@ -620,6 +620,9 @@
+ struct ath_softc {
+ struct ieee80211com sc_ic; /* NB: must be first */
+ struct net_device *sc_dev;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
++ struct napi_struct sc_napi;
++#endif
+ void __iomem *sc_iobase; /* address of the device */
+ struct semaphore sc_lock; /* dev-level lock */
+ struct net_device_stats sc_devstats; /* device statistics */