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refresh madwifi patches, fix an issue with napi polling (thx SeG)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10511 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2008-02-20 21:26:21 +00:00
parent fee51108ff
commit bcb54b3924
27 changed files with 415 additions and 547 deletions
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243
package/madwifi/patches/300-napi_polling.patch
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@@ -1,34 +1,52 @@
Index: madwifi-trunk-r3280/ath/if_ath.c
Index: madwifi-trunk-r3314/ath/if_ath.c
===================================================================
--- madwifi-trunk-r3280.orig/ath/if_ath.c 2008-01-28 17:29:22.989895792 +0100
+++ madwifi-trunk-r3280/ath/if_ath.c 2008-01-28 20:00:09.319637124 +0100
@@ -184,7 +184,7 @@
--- madwifi-trunk-r3314.orig/ath/if_ath.c 2008-02-20 21:56:33.725243076 +0100
+++ madwifi-trunk-r3314/ath/if_ath.c 2008-02-20 21:57:34.912729951 +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);
-static void ath_rx_tasklet(TQUEUE_ARG);
+#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
@@ -542,7 +542,6 @@
ATH_TXBUF_LOCK_INIT(sc);
ATH_RXBUF_LOCK_INIT(sc);
@@ -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 */
@@ -545,7 +552,6 @@
atomic_set(&sc->sc_txbuf_counter, 0);
- 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);
@@ -816,6 +815,8 @@
@@ -819,6 +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) +
@@ -2206,6 +2207,7 @@
@@ -2213,6 +2225,7 @@
(status & HAL_INT_GLOBAL) ? " HAL_INT_GLOBAL" : ""
);
@@ -36,23 +54,32 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
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.
@@ -2263,7 +2265,14 @@
@@ -2270,7 +2283,23 @@
}
if (status & (HAL_INT_RX | HAL_INT_RXPHY)) {
ath_uapsd_processtriggers(sc, hw_tsf);
- ATH_SCHEDULE_TQUEUE(&sc->sc_rxtq, &needmark);
+ 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) {
#ifdef ATH_SUPERG_DYNTURBO
@@ -2289,6 +2298,11 @@
@@ -2296,6 +2325,11 @@
}
}
#endif
@@ -64,62 +91,137 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark);
}
if (status & HAL_INT_BMISS) {
@@ -4011,10 +4025,10 @@
*
* XXX Using in_softirq is not right since we might
* be called from other soft irq contexts than
- * ath_rx_tasklet.
@@ -2508,6 +2542,7 @@
if (sc->sc_tx99 != NULL)
sc->sc_tx99->start(sc->sc_tx99);
#endif
+ ath_poll_enable(dev);
done:
ATH_UNLOCK(sc);
@@ -2548,6 +2583,9 @@
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 */
@@ -4006,6 +4044,39 @@
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())
- tasklet_disable(&sc->sc_rxtq);
+ */
+ 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
@@ -4023,13 +4094,7 @@
* 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_tasklet.
*/
- if (!in_softirq())
- tasklet_disable(&sc->sc_rxtq);
netif_stop_queue(dev);
}
@@ -4027,7 +4041,7 @@
@@ -4040,9 +4105,9 @@
struct ath_softc *sc = dev->priv;
DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n");
netif_wake_queue(dev);
if (!in_softirq()) /* NB: see above */
- netif_wake_queue(dev);
- if (!in_softirq()) /* NB: see above */
- tasklet_enable(&sc->sc_rxtq);
+ netif_poll_enable(dev);
+
+ if (dev->flags&IFF_RUNNING)
+ netif_wake_queue(dev);
}
/*
@@ -6329,13 +6343,12 @@
@@ -6347,13 +6412,23 @@
sc->sc_rxotherant = 0;
}
-static void
-ath_rx_tasklet(TQUEUE_ARG data)
+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 net_device *dev = (struct net_device *)data;
+#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
+ u_int rx_limit = dev->quota;
+#endif
struct ath_buf *bf;
struct ath_softc *sc = dev->priv;
struct ieee80211com *ic = &sc->sc_ic;
@@ -6347,8 +6360,11 @@
@@ -6365,8 +6440,10 @@
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, "invoked\n");
+process_rx_again:
do {
bf = STAILQ_FIRST(&sc->sc_rxbuf);
if (bf == NULL) { /* XXX ??? can this happen */
@@ -6372,6 +6388,13 @@
@@ -6390,6 +6467,15 @@
/* 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) {
+ early_stop = 1;
+ break;
@@ -128,7 +230,7 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
skb = bf->bf_skb;
if (skb == NULL) {
EPRINTF(sc, "Dropping; buffer contains NULL skbuff.\n");
@@ -6419,6 +6442,7 @@
@@ -6437,6 +6523,7 @@
sc->sc_stats.ast_rx_phyerr++;
phyerr = rs->rs_phyerr & 0x1f;
sc->sc_stats.ast_rx_phy[phyerr]++;
@@ -136,7 +238,7 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
}
if (rs->rs_status & HAL_RXERR_DECRYPT) {
/*
@@ -6614,9 +6638,35 @@
@@ -6632,9 +6719,38 @@
STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
ATH_RXBUF_UNLOCK_IRQ(sc);
} while (ath_rxbuf_init(sc, bf) == 0);
@@ -155,8 +257,6 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
+ 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);
@@ -164,7 +264,12 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
+#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 */
ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
@@ -172,7 +277,7 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
#undef PA2DESC
}
@@ -8267,12 +8317,24 @@
@@ -8285,12 +8401,24 @@
{
struct net_device *dev = (struct net_device *)data;
struct ath_softc *sc = dev->priv;
@@ -197,7 +302,7 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
netif_wake_queue(dev);
if (sc->sc_softled)
@@ -8288,7 +8350,9 @@
@@ -8306,7 +8434,9 @@
{
struct net_device *dev = (struct net_device *)data;
struct ath_softc *sc = dev->priv;
@@ -207,7 +312,7 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
/*
* Process each active queue.
*/
@@ -8309,6 +8373,16 @@
@@ -8327,6 +8457,16 @@
if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum))
ath_tx_processq(sc, sc->sc_uapsdq);
@@ -224,7 +329,7 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
netif_wake_queue(dev);
if (sc->sc_softled)
@@ -8324,13 +8398,25 @@
@@ -8342,13 +8482,25 @@
struct net_device *dev = (struct net_device *)data;
struct ath_softc *sc = dev->priv;
unsigned int i;
@@ -250,7 +355,7 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
netif_wake_queue(dev);
if (sc->sc_softled)
@@ -8405,6 +8491,7 @@
@@ -8423,6 +8575,7 @@
ath_draintxq(struct ath_softc *sc)
{
struct ath_hal *ah = sc->sc_ah;
@@ -258,25 +363,25 @@ Index: madwifi-trunk-r3280/ath/if_ath.c
unsigned int i;
/* XXX return value */
@@ -10261,9 +10348,9 @@
@@ -10281,9 +10434,9 @@
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);
+ ath_poll_disable(dev);
error = ath_reset(dev);
- tasklet_enable(&sc->sc_rxtq);
+ netif_poll_enable(dev);
+ ath_poll_enable(dev);
}
ATH_UNLOCK(sc);
Index: madwifi-trunk-r3280/ath/if_athvar.h
Index: madwifi-trunk-r3314/ath/if_athvar.h
===================================================================
--- madwifi-trunk-r3280.orig/ath/if_athvar.h 2008-01-28 17:29:22.997896245 +0100
+++ madwifi-trunk-r3280/ath/if_athvar.h 2008-01-28 17:45:06.903383316 +0100
@@ -50,6 +50,10 @@
#include <asm/io.h>
#include <linux/list.h>
--- madwifi-trunk-r3314.orig/ath/if_athvar.h 2008-02-20 21:56:33.733243528 +0100
+++ madwifi-trunk-r3314/ath/if_athvar.h 2008-02-20 21:57:34.892728811 +0100
@@ -53,6 +53,10 @@
# include <asm/bitops.h>
#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define irqs_disabled() 0
@@ -285,7 +390,17 @@ Index: madwifi-trunk-r3280/ath/if_athvar.h
/*
* Deduce if tasklets are available. If not then
* fall back to using the immediate work queue.
@@ -728,7 +732,6 @@
@@ -616,6 +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 */
@@ -730,7 +737,6 @@
struct ath_buf *sc_rxbufcur; /* current rx buffer */
u_int32_t *sc_rxlink; /* link ptr in last RX desc */
spinlock_t sc_rxbuflock;
@@ -293,7 +408,7 @@ Index: madwifi-trunk-r3280/ath/if_athvar.h
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 @@
@@ -745,6 +751,7 @@
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 */
@@ -301,7 +416,7 @@ Index: madwifi-trunk-r3280/ath/if_athvar.h
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 @@
@@ -858,6 +865,8 @@
#define ATH_TXBUF_LOCK_CHECK(_sc)
#endif
@@ -310,11 +425,11 @@ Index: madwifi-trunk-r3280/ath/if_athvar.h
#define ATH_RXBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_rxbuflock)
#define ATH_RXBUF_LOCK_DESTROY(_sc)
Index: madwifi-trunk-r3280/net80211/ieee80211_input.c
Index: madwifi-trunk-r3314/net80211/ieee80211_input.c
===================================================================
--- madwifi-trunk-r3280.orig/net80211/ieee80211_input.c 2008-01-28 17:29:23.005896702 +0100
+++ madwifi-trunk-r3280/net80211/ieee80211_input.c 2008-01-28 19:52:50.586635164 +0100
@@ -1197,7 +1197,7 @@
--- madwifi-trunk-r3314.orig/net80211/ieee80211_input.c 2008-02-20 21:56:33.741243986 +0100
+++ madwifi-trunk-r3314/net80211/ieee80211_input.c 2008-02-20 21:57:34.896729040 +0100
@@ -1198,7 +1198,7 @@
/* 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) {
@@ -323,7 +438,7 @@ Index: madwifi-trunk-r3280/net80211/ieee80211_input.c
* device was too busy */
if (ni_tmp != NULL) {
/* node reference was leaked */
@@ -1208,8 +1208,8 @@
@@ -1209,8 +1209,8 @@
skb = NULL; /* SKB is no longer ours */
} else {
struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
@@ -334,7 +449,7 @@ Index: madwifi-trunk-r3280/net80211/ieee80211_input.c
* device was too busy */
if (ni_tmp != NULL) {
/* node reference was leaked */
@@ -2314,8 +2314,8 @@
@@ -2322,8 +2322,8 @@
skb1->protocol = __constant_htons(0x0019); /* ETH_P_80211_RAW */
ni_tmp = SKB_CB(skb1)->ni;
@@ -345,10 +460,10 @@ Index: madwifi-trunk-r3280/net80211/ieee80211_input.c
* device was too busy */
if (ni_tmp != NULL) {
/* node reference was leaked */
Index: madwifi-trunk-r3280/net80211/ieee80211_monitor.c
Index: madwifi-trunk-r3314/net80211/ieee80211_monitor.c
===================================================================
--- madwifi-trunk-r3280.orig/net80211/ieee80211_monitor.c 2008-01-28 17:29:23.013897159 +0100
+++ madwifi-trunk-r3280/net80211/ieee80211_monitor.c 2008-01-28 17:29:26.430091834 +0100
--- madwifi-trunk-r3314.orig/net80211/ieee80211_monitor.c 2008-02-20 21:56:33.749244442 +0100
+++ madwifi-trunk-r3314/net80211/ieee80211_monitor.c 2008-02-20 21:57:34.900729266 +0100
@@ -584,8 +584,8 @@
skb1->protocol =
__constant_htons(0x0019); /* ETH_P_80211_RAW */
@@ -360,10 +475,10 @@ Index: madwifi-trunk-r3280/net80211/ieee80211_monitor.c
* device was too busy, reclaim the ref. in
* the skb. */
if (SKB_CB(skb1)->ni != NULL)
Index: madwifi-trunk-r3280/net80211/ieee80211_skb.c
Index: madwifi-trunk-r3314/net80211/ieee80211_skb.c
===================================================================
--- madwifi-trunk-r3280.orig/net80211/ieee80211_skb.c 2008-01-28 17:29:23.017897384 +0100
+++ madwifi-trunk-r3280/net80211/ieee80211_skb.c 2008-01-28 17:29:26.446092748 +0100
--- madwifi-trunk-r3314.orig/net80211/ieee80211_skb.c 2008-02-20 21:56:33.757244897 +0100
+++ madwifi-trunk-r3314/net80211/ieee80211_skb.c 2008-02-20 21:57:34.904729495 +0100
@@ -73,7 +73,7 @@
#undef dev_queue_xmit
#undef kfree_skb
@@ -393,10 +508,10 @@ Index: madwifi-trunk-r3280/net80211/ieee80211_skb.c
EXPORT_SYMBOL(alloc_skb_debug);
EXPORT_SYMBOL(dev_alloc_skb_debug);
EXPORT_SYMBOL(skb_clone_debug);
Index: madwifi-trunk-r3280/net80211/ieee80211_skb.h
Index: madwifi-trunk-r3314/net80211/ieee80211_skb.h
===================================================================
--- madwifi-trunk-r3280.orig/net80211/ieee80211_skb.h 2008-01-28 17:29:23.029898072 +0100
+++ madwifi-trunk-r3280/net80211/ieee80211_skb.h 2008-01-28 17:29:26.458093432 +0100
--- madwifi-trunk-r3314.orig/net80211/ieee80211_skb.h 2008-02-20 21:56:33.765245356 +0100
+++ madwifi-trunk-r3314/net80211/ieee80211_skb.h 2008-02-20 21:57:34.908729722 +0100
@@ -116,7 +116,7 @@
int vlan_hwaccel_receive_skb_debug(struct sk_buff *skb,
struct vlan_group *grp, unsigned short vlan_tag,