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net: trans_start cleanups

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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
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5
drivers/net/atarilance.c
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@@ -767,8 +767,8 @@ static void lance_tx_timeout (struct net_device *dev)
/* lance_restart, essentially */
lance_init_ring(dev);
REGA( CSR0 ) = CSR0_INEA | CSR0_INIT | CSR0_STRT;
dev->trans_start = jiffies;
netif_wake_queue (dev);
dev->trans_start = jiffies; /* prevent tx timeout */
netif_wake_queue(dev);
}
/* XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX */
@@ -836,7 +836,6 @@ static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
/* Trigger an immediate send poll. */
DREG = CSR0_INEA | CSR0_TDMD;
dev->trans_start = jiffies;
if ((MEM->tx_head[(entry+1) & TX_RING_MOD_MASK].flag & TMD1_OWN) ==
TMD1_OWN_HOST)