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428 lines
14 KiB
428 lines
14 KiB
Index: madwifi-trunk-r3280/ath/if_ath.c
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===================================================================
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--- madwifi-trunk-r3280.orig/ath/if_ath.c 2008-01-28 17:29:22.989895792 +0100
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+++ madwifi-trunk-r3280/ath/if_ath.c 2008-01-28 20:00:09.319637124 +0100
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@@ -184,7 +184,7 @@
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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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+static int ath_rx_poll(struct net_device *dev, int *budget);
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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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@@ -542,7 +542,6 @@
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ATH_TXBUF_LOCK_INIT(sc);
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ATH_RXBUF_LOCK_INIT(sc);
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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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@@ -816,6 +815,8 @@
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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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+ dev->poll = ath_rx_poll;
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+ dev->weight = 64;
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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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@@ -2206,6 +2207,7 @@
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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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@@ -2263,7 +2265,14 @@
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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 (netif_rx_schedule_prep(dev)) {
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+#ifndef ATH_PRECISE_TSF
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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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+#endif
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+ __netif_rx_schedule(dev);
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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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@@ -2289,6 +2298,11 @@
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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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@@ -4011,10 +4025,10 @@
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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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+ * ath_rx_poll
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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_poll_disable(dev);
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netif_stop_queue(dev);
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}
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@@ -4027,7 +4041,7 @@
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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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+ netif_poll_enable(dev);
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}
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/*
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@@ -6329,13 +6343,12 @@
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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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+ath_rx_poll(struct net_device *dev, int *budget)
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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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struct ath_softc *sc = dev->priv;
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struct ieee80211com *ic = &sc->sc_ic;
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@@ -6347,8 +6360,11 @@
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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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+ u_int rx_limit = dev->quota;
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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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@@ -6372,6 +6388,13 @@
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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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+ processed++;
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+ if (rx_limit-- < 0) {
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+ early_stop = 1;
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+ break;
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+ }
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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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@@ -6419,6 +6442,7 @@
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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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@@ -6614,9 +6638,35 @@
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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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+#ifndef ATH_PRECISE_TSF
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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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+#endif
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+ netif_rx_complete(dev);
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+
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+#ifndef ATH_PRECISE_TSF
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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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+ local_irq_restore(flags);
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+#endif
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+ }
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+
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+ *budget -= processed;
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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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+ return early_stop;
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#undef PA2DESC
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}
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@@ -8267,12 +8317,24 @@
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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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@@ -8288,7 +8350,9 @@
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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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@@ -8309,6 +8373,16 @@
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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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@@ -8324,13 +8398,25 @@
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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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@@ -8405,6 +8491,7 @@
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ath_draintxq(struct ath_softc *sc)
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{
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struct ath_hal *ah = sc->sc_ah;
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+ int npend = 0;
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unsigned int i;
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/* XXX return value */
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@@ -10261,9 +10348,9 @@
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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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+ netif_poll_disable(dev);
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error = ath_reset(dev);
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- tasklet_enable(&sc->sc_rxtq);
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+ netif_poll_enable(dev);
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}
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ATH_UNLOCK(sc);
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Index: madwifi-trunk-r3280/ath/if_athvar.h
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===================================================================
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--- madwifi-trunk-r3280.orig/ath/if_athvar.h 2008-01-28 17:29:22.997896245 +0100
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+++ madwifi-trunk-r3280/ath/if_athvar.h 2008-01-28 17:45:06.903383316 +0100
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@@ -50,6 +50,10 @@
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#include <asm/io.h>
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#include <linux/list.h>
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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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@@ -728,7 +732,6 @@
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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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@@ -741,6 +744,7 @@
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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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@@ -854,6 +858,8 @@
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#define ATH_TXBUF_LOCK_CHECK(_sc)
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#endif
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+#define ATH_DISABLE_INTR local_irq_disable
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+#define ATH_ENABLE_INTR local_irq_enable
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#define ATH_RXBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_rxbuflock)
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#define ATH_RXBUF_LOCK_DESTROY(_sc)
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Index: madwifi-trunk-r3280/net80211/ieee80211_input.c
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===================================================================
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--- madwifi-trunk-r3280.orig/net80211/ieee80211_input.c 2008-01-28 17:29:23.005896702 +0100
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+++ madwifi-trunk-r3280/net80211/ieee80211_input.c 2008-01-28 19:52:50.586635164 +0100
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@@ -1197,7 +1197,7 @@
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/* attach vlan tag */
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struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
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if (vlan_hwaccel_receive_skb(skb, vap->iv_vlgrp, ni->ni_vlan) == NET_RX_DROP) {
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- /* If netif_rx dropped the packet because
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+ /* If netif_receive_skb dropped the packet because
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* device was too busy */
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if (ni_tmp != NULL) {
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/* node reference was leaked */
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@@ -1208,8 +1208,8 @@
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skb = NULL; /* SKB is no longer ours */
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} else {
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struct ieee80211_node *ni_tmp = SKB_CB(skb)->ni;
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- if (netif_rx(skb) == NET_RX_DROP) {
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- /* If netif_rx dropped the packet because
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+ if (netif_receive_skb(skb) == NET_RX_DROP) {
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+ /* If netif_receive_skb dropped the packet because
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* device was too busy */
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if (ni_tmp != NULL) {
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/* node reference was leaked */
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@@ -2314,8 +2314,8 @@
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skb1->protocol = __constant_htons(0x0019); /* ETH_P_80211_RAW */
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ni_tmp = SKB_CB(skb1)->ni;
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- if (netif_rx(skb1) == NET_RX_DROP) {
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- /* If netif_rx dropped the packet because
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+ if (netif_receive_skb(skb1) == NET_RX_DROP) {
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+ /* If netif_receive_skb dropped the packet because
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* device was too busy */
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if (ni_tmp != NULL) {
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/* node reference was leaked */
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Index: madwifi-trunk-r3280/net80211/ieee80211_monitor.c
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===================================================================
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--- madwifi-trunk-r3280.orig/net80211/ieee80211_monitor.c 2008-01-28 17:29:23.013897159 +0100
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+++ madwifi-trunk-r3280/net80211/ieee80211_monitor.c 2008-01-28 17:29:26.430091834 +0100
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@@ -584,8 +584,8 @@
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skb1->protocol =
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__constant_htons(0x0019); /* ETH_P_80211_RAW */
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- if (netif_rx(skb1) == NET_RX_DROP) {
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- /* If netif_rx dropped the packet because
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+ if (netif_receive_skb(skb1) == NET_RX_DROP) {
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+ /* If netif_receive_skb dropped the packet because
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* device was too busy, reclaim the ref. in
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* the skb. */
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if (SKB_CB(skb1)->ni != NULL)
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Index: madwifi-trunk-r3280/net80211/ieee80211_skb.c
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===================================================================
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--- madwifi-trunk-r3280.orig/net80211/ieee80211_skb.c 2008-01-28 17:29:23.017897384 +0100
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+++ madwifi-trunk-r3280/net80211/ieee80211_skb.c 2008-01-28 17:29:26.446092748 +0100
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@@ -73,7 +73,7 @@
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#undef dev_queue_xmit
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#undef kfree_skb
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#undef kfree_skb_fast
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-#undef netif_rx
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+#undef netif_receive_skb
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#undef pskb_copy
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#undef skb_clone
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#undef skb_copy
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@@ -638,8 +638,8 @@
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grp, vlan_tag);
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}
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-int netif_rx_debug(struct sk_buff *skb, const char* func, int line) {
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- return netif_rx(untrack_skb(skb, 0, func, line, __func__, __LINE__));
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+int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line) {
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+ return netif_receive_skb(untrack_skb(skb, 0, func, line, __func__, __LINE__));
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}
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struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
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@@ -760,7 +760,7 @@
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}
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EXPORT_SYMBOL(vlan_hwaccel_receive_skb_debug);
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-EXPORT_SYMBOL(netif_rx_debug);
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+EXPORT_SYMBOL(netif_receive_skb_debug);
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EXPORT_SYMBOL(alloc_skb_debug);
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EXPORT_SYMBOL(dev_alloc_skb_debug);
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EXPORT_SYMBOL(skb_clone_debug);
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Index: madwifi-trunk-r3280/net80211/ieee80211_skb.h
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===================================================================
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--- madwifi-trunk-r3280.orig/net80211/ieee80211_skb.h 2008-01-28 17:29:23.029898072 +0100
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+++ madwifi-trunk-r3280/net80211/ieee80211_skb.h 2008-01-28 17:29:26.458093432 +0100
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@@ -116,7 +116,7 @@
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int vlan_hwaccel_receive_skb_debug(struct sk_buff *skb,
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struct vlan_group *grp, unsigned short vlan_tag,
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const char* func, int line);
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-int netif_rx_debug(struct sk_buff *skb, const char* func, int line);
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+int netif_receive_skb_debug(struct sk_buff *skb, const char* func, int line);
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struct sk_buff * alloc_skb_debug(unsigned int length, gfp_t gfp_mask,
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const char *func, int line);
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struct sk_buff * dev_alloc_skb_debug(unsigned int length,
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@@ -151,7 +151,7 @@
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#undef dev_queue_xmit
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#undef kfree_skb
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#undef kfree_skb_fast
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-#undef netif_rx
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+#undef netif_receive_skb
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#undef pskb_copy
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#undef skb_clone
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#undef skb_copy
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@@ -168,8 +168,8 @@
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skb_copy_expand_debug(_skb, _newheadroom, _newtailroom, _gfp_mask, __func__, __LINE__)
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#define vlan_hwaccel_receive_skb(_skb, _grp, _tag) \
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vlan_hwaccel_receive_skb_debug(_skb, _grp, _tag, __func__, __LINE__)
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-#define netif_rx(_skb) \
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- netif_rx_debug(_skb, __func__, __LINE__)
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+#define netif_receive_skb(_skb) \
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+ netif_receive_skb_debug(_skb, __func__, __LINE__)
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#define alloc_skb(_length, _gfp_mask) \
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alloc_skb_debug(_length, _gfp_mask, __func__, __LINE__)
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#define dev_alloc_skb(_length) \
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