mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-24 01:41:39 +00:00
Code Issues Releases Wiki Activity

gianfar: Fix eTSEC configuration procedure

Browse source 
Fix some bugs in the ethtool configuration functions:
* gfar_clean_rx_ring should not be called with interrupts disabled.
* Update last transmission time to avoid tx timeout.
* Delete redundant NETIF_F_IP_CSUM check in gfar_start_xmit
* Use netif_tx_lock_bh when reconfiguring the tx csum

Signed-off-by: Dai Haruki <dai.haruki@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dai Haruki 2008-12-16 15:30:20 -08:00 committed by David S. Miller
parent b46a8454cd
commit 12dea57be5
2 changed files with 15 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
drivers/net/gianfar.c
View file

@ -892,6 +892,8 @@ void gfar_start(struct net_device *dev)
/* Unmask the interrupts we look for */
gfar_write(&regs->imask, IMASK_DEFAULT);
dev->trans_start = jiffies;
}
/* Bring the controller up and running */
@ -1233,8 +1235,7 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
status = txbdp->status & TXBD_WRAP;
/* Set up checksumming */
if (likely((dev->features & NETIF_F_IP_CSUM)
&& (CHECKSUM_PARTIAL == skb->ip_summed))) {
if (CHECKSUM_PARTIAL == skb->ip_summed) {
fcb = gfar_add_fcb(skb, txbdp);
status |= TXBD_TOE;
gfar_tx_checksum(skb, fcb);

23
drivers/net/gianfar_ethtool.c
View file

@ -462,11 +462,12 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva
spin_lock(&priv->rxlock);
gfar_halt(dev);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
spin_unlock(&priv->rxlock);
spin_unlock_irqrestore(&priv->txlock, flags);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
@ -476,9 +477,10 @@ static int gfar_sringparam(struct net_device *dev, struct ethtool_ringparam *rva
priv->tx_ring_size = rvals->tx_pending;
/* Rebuild the rings with the new size */
if (dev->flags & IFF_UP)
if (dev->flags & IFF_UP) {
err = startup_gfar(dev);
netif_wake_queue(dev);
}
return err;
}
@ -498,11 +500,12 @@ static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
spin_lock(&priv->rxlock);
gfar_halt(dev);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
spin_unlock(&priv->rxlock);
spin_unlock_irqrestore(&priv->txlock, flags);
gfar_clean_rx_ring(dev, priv->rx_ring_size);
/* Now we take down the rings to rebuild them */
stop_gfar(dev);
}
@ -511,9 +514,10 @@ static int gfar_set_rx_csum(struct net_device *dev, uint32_t data)
priv->rx_csum_enable = data;
spin_unlock_irqrestore(&priv->bflock, flags);
if (dev->flags & IFF_UP)
if (dev->flags & IFF_UP) {
err = startup_gfar(dev);
netif_wake_queue(dev);
}
return err;
}
@ -529,22 +533,19 @@ static uint32_t gfar_get_rx_csum(struct net_device *dev)
static int gfar_set_tx_csum(struct net_device *dev, uint32_t data)
{
unsigned long flags;
struct gfar_private *priv = netdev_priv(dev);
if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_CSUM))
return -EOPNOTSUPP;
spin_lock_irqsave(&priv->txlock, flags);
gfar_halt(dev);
netif_tx_lock_bh(dev);
if (data)
dev->features |= NETIF_F_IP_CSUM;
else
dev->features &= ~NETIF_F_IP_CSUM;
gfar_start(dev);
spin_unlock_irqrestore(&priv->txlock, flags);
netif_tx_unlock_bh(dev);
return 0;
}