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openwrt-xburst/package/madwifi/patches/329-new_napi.patch

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pull madwifi forward to the latest upstream version - should fix some dual radio issues; add preliminary 2.6.24 support patch (compiles, not run-time tested, thx SeG) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10334 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-01-31 06:09:54 +02:00
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 */
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