net: trans_start cleanups

Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet
2010-05-10 05:01:31 -07:00
committed by David S. Miller
parent 2b0b05ddc0
commit 1ae5dc342a
168 changed files with 103 additions and 314 deletions

View File

@@ -504,7 +504,7 @@ static void el16_tx_timeout (struct net_device *dev)
outb (0, ioaddr + SIGNAL_CA); /* Issue channel-attn. */
lp->last_restart = dev->stats.tx_packets;
}
dev->trans_start = jiffies;
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue (dev);
}
@@ -528,7 +528,6 @@ static netdev_tx_t el16_send_packet (struct sk_buff *skb,
hardware_send_packet (dev, buf, skb->len, length - skb->len);
dev->trans_start = jiffies;
/* Enable the 82586 interrupt input. */
outb (0x84, ioaddr + MISC_CTRL);