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-rw-r--r--package/madwifi/patches-r3776/300-napi_polling.patch529
1 files changed, 0 insertions, 529 deletions
diff --git a/package/madwifi/patches-r3776/300-napi_polling.patch b/package/madwifi/patches-r3776/300-napi_polling.patch
deleted file mode 100644
index 27dd838db0..0000000000
--- a/package/madwifi/patches-r3776/300-napi_polling.patch
+++ /dev/null
@@ -1,529 +0,0 @@
---- a/ath/if_ath.c
-+++ b/ath/if_ath.c
-@@ -182,7 +182,11 @@
- 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
-@@ -331,6 +335,9 @@
- static u_int32_t ath_set_clamped_maxtxpower(struct ath_softc *sc,
- u_int32_t new_clamped_maxtxpower);
-
-+static void ath_poll_disable(struct net_device *dev);
-+static void ath_poll_enable(struct net_device *dev);
-+
- static void ath_scanbufs(struct ath_softc *sc);
- static int ath_debug_iwpriv(struct ieee80211com *ic,
- unsigned int param, unsigned int value);
-@@ -518,7 +525,6 @@
-
- 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);
-@@ -833,6 +839,12 @@
- 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) +
-@@ -1770,7 +1782,7 @@
- }
-
- static void
--ath_intr_process_rx_descriptors(struct ath_softc *sc, int *pneedmark, u_int64_t hw_tsf)
-+ath_intr_process_rx_descriptors(struct ath_softc *sc, int *pneedmark, u_int64_t hw_tsf, int schedule)
- {
- struct ath_hal *ah = sc->sc_ah;
- struct ath_desc *ds;
-@@ -2252,8 +2264,25 @@
- }
-
- /* If we got something to process, schedule rx queue to handle it */
-- if (count)
-- ATH_SCHEDULE_TQUEUE(&sc->sc_rxtq, pneedmark);
-+ if (count) {
-+ sc->sc_isr &= ~HAL_INT_RX;
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
-+ if (netif_rx_schedule_prep(sc->sc_dev, &sc->sc_napi))
-+#else
-+ if (netif_rx_schedule_prep(sc->sc_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(sc->sc_dev, &sc->sc_napi);
-+#else
-+ __netif_rx_schedule(sc->sc_dev);
-+#endif
-+ }
-+ }
- ATH_RXBUF_UNLOCK_IRQ(sc);
- #undef PA2DESC
- }
-@@ -2343,6 +2372,7 @@
- (status & HAL_INT_GLOBAL) ? " HAL_INT_GLOBAL" : ""
- );
-
-+ sc->sc_isr = status;
- 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.
-@@ -2400,7 +2430,7 @@
- }
- if (status & (HAL_INT_RX | HAL_INT_RXPHY)) {
- /* NB: Will schedule rx tasklet if necessary. */
-- ath_intr_process_rx_descriptors(sc, &needmark, hw_tsf);
-+ ath_intr_process_rx_descriptors(sc, &needmark, hw_tsf, 1);
- }
- if (status & HAL_INT_TX) {
- #ifdef ATH_SUPERG_DYNTURBO
-@@ -2426,6 +2456,11 @@
- }
- }
- #endif
-+ /* disable transmit interrupt */
-+ sc->sc_isr &= ~HAL_INT_TX;
-+ ath_hal_intrset(ah, sc->sc_imask & ~HAL_INT_TX);
-+ sc->sc_imask &= ~HAL_INT_TX;
-+
- ATH_SCHEDULE_TQUEUE(&sc->sc_txtq, &needmark);
- }
- if (status & HAL_INT_BMISS) {
-@@ -2617,6 +2652,7 @@
- if (sc->sc_tx99 != NULL)
- sc->sc_tx99->start(sc->sc_tx99);
- #endif
-+ ath_poll_enable(dev);
-
- done:
- ATH_UNLOCK(sc);
-@@ -2657,6 +2693,9 @@
- 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 */
-@@ -4109,6 +4148,43 @@
- return ath_keyset(sc, k, mac, vap->iv_bss);
- }
-
-+static void ath_poll_disable(struct net_device *dev)
-+{
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
-+ struct ath_softc *sc = dev->priv;
-+#endif
-+
-+ /*
-+ * 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)
-+{
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
-+ struct ath_softc *sc = dev->priv;
-+#endif
-+
-+ /* 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
-@@ -4119,33 +4195,23 @@
- ath_key_update_begin(struct ieee80211vap *vap)
- {
- struct net_device *dev = vap->iv_ic->ic_dev;
-- struct ath_softc *sc = dev->priv;
-
-- DPRINTF(sc, ATH_DEBUG_KEYCACHE, "Begin\n");
- /*
- * 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);
-+ if ((dev->flags & (IFF_UP|IFF_RUNNING)) == (IFF_UP|IFF_RUNNING))
-+ netif_stop_queue(dev);
- }
-
- static void
- ath_key_update_end(struct ieee80211vap *vap)
- {
- struct net_device *dev = vap->iv_ic->ic_dev;
-- struct ath_softc *sc = dev->priv;
-
-- DPRINTF(sc, ATH_DEBUG_KEYCACHE, "End\n");
-- netif_wake_queue(dev);
-- if (!in_softirq()) /* NB: see above */
-- tasklet_enable(&sc->sc_rxtq);
-+ if ((dev->flags & (IFF_UP|IFF_RUNNING)) == (IFF_UP|IFF_RUNNING))
-+ netif_wake_queue(dev);
- }
-
- /*
-@@ -6405,15 +6471,25 @@
- sc->sc_numrxotherant = 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;
-- 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 = min(dev->quota, *budget);
-+#endif
-+ struct ath_buf *bf;
- struct ieee80211com *ic = &sc->sc_ic;
- struct ath_hal *ah = sc ? sc->sc_ah : NULL;
- struct ath_desc *ds;
-@@ -6421,6 +6497,7 @@
- struct ieee80211_node *ni;
- struct sk_buff *skb = NULL;
- unsigned int len, phyerr, mic_fail = 0;
-+ unsigned int early_stop = 0;
- int type = -1; /* undefined */
- int init_ret = 0;
- int bf_processed = 0;
-@@ -6428,6 +6505,7 @@
- int errors = 0;
-
- DPRINTF(sc, ATH_DEBUG_RX_PROC, "%s started...\n", __func__);
-+process_rx_again:
- do {
- /* Get next RX buffer pending processing by RX tasklet...
- *
-@@ -6457,6 +6535,10 @@
- break;
-
- bf_processed++;
-+ if (rx_limit-- < 0) {
-+ early_stop = 1;
-+ break;
-+ }
- ds = bf->bf_desc;
-
- #ifdef AR_DEBUG
-@@ -6491,6 +6573,7 @@
- sc->sc_stats.ast_rx_phyerr++;
- phyerr = rs->rs_phyerr & 0x1f;
- sc->sc_stats.ast_rx_phy[phyerr]++;
-+ goto rx_next;
- }
- if (rs->rs_status & HAL_RXERR_DECRYPT) {
- /* Decrypt error. If the error occurred
-@@ -6689,6 +6772,33 @@
- STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
- ATH_RXBUF_UNLOCK_IRQ(sc);
- } while (1);
-+ if (!early_stop) {
-+ unsigned long flags;
-+ /* 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);
-+ sc->sc_isr &= ~HAL_INT_RX;
-+ local_irq_restore(flags);
-+ ath_intr_process_rx_descriptors(sc, NULL, hw_tsf, 0);
-+ goto process_rx_again;
-+ }
-+ 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)
-+ netif_rx_complete(dev, napi);
-+#else
-+ netif_rx_complete(dev);
-+ *budget -= bf_processed;
-+ dev->quota -= bf_processed;
-+#endif
-
- if (sc->sc_useintmit)
- ath_hal_rxmonitor(ah, &sc->sc_halstats, &sc->sc_curchan);
-@@ -6701,6 +6811,12 @@
- " %d rx buf processed. %d were errors. %d skb accepted.\n",
- __func__, bf_processed, errors, skb_accepted);
- #undef PA2DESC
-+
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
-+ return bf_processed;
-+#else
-+ return early_stop;
-+#endif
- }
-
- #ifdef ATH_SUPERG_XR
-@@ -8306,12 +8422,24 @@
- {
- struct net_device *dev = (struct net_device *)data;
- struct ath_softc *sc = dev->priv;
-+ unsigned long flags;
-
-+process_tx_again:
- if (txqactive(sc->sc_ah, 0))
- ath_tx_processq(sc, &sc->sc_txq[0]);
- if (txqactive(sc->sc_ah, sc->sc_cabq->axq_qnum))
- ath_tx_processq(sc, sc->sc_cabq);
-
-+ local_irq_save(flags);
-+ if (sc->sc_isr & HAL_INT_TX) {
-+ sc->sc_isr &= ~HAL_INT_TX;
-+ local_irq_restore(flags);
-+ goto process_tx_again;
-+ }
-+ sc->sc_imask |= HAL_INT_TX;
-+ ath_hal_intrset(sc->sc_ah, sc->sc_imask);
-+ local_irq_restore(flags);
-+
- netif_wake_queue(dev);
-
- if (sc->sc_softled)
-@@ -8327,7 +8455,9 @@
- {
- struct net_device *dev = (struct net_device *)data;
- struct ath_softc *sc = dev->priv;
-+ unsigned long flags;
-
-+process_tx_again:
- /*
- * Process each active queue.
- */
-@@ -8357,6 +8487,16 @@
- if (sc->sc_uapsdq && txqactive(sc->sc_ah, sc->sc_uapsdq->axq_qnum))
- ath_tx_processq(sc, sc->sc_uapsdq);
-
-+ local_irq_save(flags);
-+ if (sc->sc_isr & HAL_INT_TX) {
-+ sc->sc_isr &= ~HAL_INT_TX;
-+ local_irq_restore(flags);
-+ goto process_tx_again;
-+ }
-+ sc->sc_imask |= HAL_INT_TX;
-+ ath_hal_intrset(sc->sc_ah, sc->sc_imask);
-+ local_irq_restore(flags);
-+
- netif_wake_queue(dev);
-
- if (sc->sc_softled)
-@@ -10322,9 +10462,9 @@
- 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);
-+ ath_poll_disable(dev);
- error = ath_reset(dev);
-- tasklet_enable(&sc->sc_rxtq);
-+ ath_poll_enable(dev);
- }
- ATH_UNLOCK(sc);
-
---- a/ath/if_athvar.h
-+++ b/ath/if_athvar.h
-@@ -56,6 +56,10 @@
- # include <asm/bitops.h>
- #endif
-
-+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
-+#define irqs_disabled() 0
-+#endif
-+
- /*
- * Deduce if tasklets are available. If not then
- * fall back to using the immediate work queue.
-@@ -644,6 +648,9 @@
- 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 */
-@@ -756,7 +763,6 @@
- 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_rxtq; /* rx intr tasklet */
- struct ATH_TQ_STRUCT sc_rxorntq; /* rxorn intr tasklet */
- u_int16_t sc_cachelsz; /* cache line size */
-
-@@ -769,6 +775,7 @@
- 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 */
-+ HAL_INT sc_isr; /* unmasked ISR state */
- 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 */
-@@ -888,6 +895,8 @@
- #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_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
-@@ -581,8 +581,8 @@
- 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__));
-+int netif_receive_skb_debug(struct sk_buff *skb, const char *func, int line) {
-+ return netif_receive_skb(untrack_skb(skb, 0, __func__, __LINE__));
- }
-
- struct sk_buff *alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
-@@ -707,7 +707,7 @@
- }
-
- EXPORT_SYMBOL(vlan_hwaccel_rx_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
-@@ -115,7 +115,7 @@
-
- int vlan_hwaccel_rx_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,
-@@ -150,7 +150,7 @@
- #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
-@@ -167,8 +167,8 @@
- skb_copy_expand_debug(_skb, _newheadroom, _newtailroom, _gfp_mask, __func__, __LINE__)
- #define vlan_hwaccel_rx(_skb, _grp, _tag) \
- vlan_hwaccel_rx_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) \
---- a/net80211/ieee80211_input.c
-+++ b/net80211/ieee80211_input.c
-@@ -1185,7 +1185,7 @@
- ret = vlan_hwaccel_rx(skb,
- vap->iv_vlgrp, ni->ni_vlan);
- else
-- ret = netif_rx(skb);
-+ ret = netif_receive_skb(skb);
- if (ret == NET_RX_DROP)
- vap->iv_devstats.rx_dropped++;
- if (tni != NULL)
-@@ -2285,7 +2285,7 @@
-
- if (SKB_NI(skb1) != NULL)
- ieee80211_unref_node(&SKB_NI(skb1));
-- if (netif_rx(skb1) == NET_RX_DROP)
-+ if (netif_receive_skb(skb1) == NET_RX_DROP)
- vap->iv_devstats.rx_dropped++;
- }
- }
---- a/net80211/ieee80211_monitor.c
-+++ b/net80211/ieee80211_monitor.c
-@@ -580,7 +580,7 @@
-
- if (SKB_NI(skb1) != NULL)
- ieee80211_unref_node(&SKB_NI(skb1));
-- if (netif_rx(skb1) == NET_RX_DROP)
-+ if (netif_receive_skb(skb1) == NET_RX_DROP)
- vap->iv_devstats.rx_dropped++;
- skb1 = NULL;
- }
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-03 18:52:25 +0000