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path: root/drivers/net/gianfar.c
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Diffstat (limited to 'drivers/net/gianfar.c')
-rw-r--r--drivers/net/gianfar.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index ea53067..9831b3f 100644
--- 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++;
@@ -1423,15 +1426,11 @@ static void gfar_vlan_rx_register(struct net_device *dev,
{
struct gfar_private *priv = netdev_priv(dev);
unsigned long flags;
- struct vlan_group *old_grp;
u32 tempval;
spin_lock_irqsave(&priv->rxlock, flags);
- old_grp = priv->vlgrp;
-
- if (old_grp == grp)
- return;
+ priv->vlgrp = grp;
if (grp) {
/* Enable VLAN tag insertion */
@@ -1630,6 +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);
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