diff options
Diffstat (limited to 'drivers/net/gianfar.c')
| -rw-r--r-- | drivers/net/gianfar.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index efcbeb6c867..9831b3f408a 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 */ @@ -1622,10 +1621,24 @@ static int gfar_clean_tx_ring(struct net_device *dev) static void gfar_schedule_cleanup(struct net_device *dev) { struct gfar_private *priv = netdev_priv(dev); + unsigned long flags; + + spin_lock_irqsave(&priv->txlock, flags); + spin_lock(&priv->rxlock); + 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); + spin_unlock_irqrestore(&priv->txlock, flags); } /* Interrupt Handler for Transmit complete */ |