linux.conf.au 2009: Tuz

[linux-2.6-omap-h63xx.git] / drivers / net / gianfar.c

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 3f7eab42aef12b14e10c8e874894d3c1b1490093..9831b3f408aa17fc44431c47b73b8e1057f046eb 100644 (file)
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -351,6 +351,9 @@ static int gfar_probe(struct of_device *ofdev,
        /* Reset MAC layer */
        gfar_write(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
 
+       /* We need to delay at least 3 TX clocks */
+       udelay(2);
+
        tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
        gfar_write(&priv->regs->maccfg1, tempval);
 
@@ -1281,7 +1284,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
        spin_lock_irqsave(&priv->txlock, flags);
 
        /* check if there is space to queue this packet */
-       if (nr_frags > priv->num_txbdfree) {
+       if ((nr_frags+1) > priv->num_txbdfree) {
                /* no space, stop the queue */
                netif_stop_queue(dev);
                dev->stats.tx_fifo_errors++;
@@ -1626,6 +1629,12 @@ static void gfar_schedule_cleanup(struct net_device *dev)
        if (netif_rx_schedule_prep(&priv->napi)) {
                gfar_write(&priv->regs->imask, IMASK_RTX_DISABLED);
                __netif_rx_schedule(&priv->napi);
+       } else {
+               /*
+                * Clear IEVENT, so interrupts aren't called again
+                * because of the packets that have already arrived.
+                */
+               gfar_write(&priv->regs->ievent, IEVENT_RTX_MASK);
        }
 
        spin_unlock(&priv->rxlock);