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authorEric Dumazet <eric.dumazet@gmail.com>2010-05-10 05:01:31 -0700
committerDavid S. Miller <davem@davemloft.net>2010-05-10 05:01:31 -0700
commit1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 (patch)
treed1955a7639e99832590df26466a34d5786a880ae /drivers/net/eth16i.c
parent2b0b05ddc04b6d45e71cd36405df512075786f1e (diff)
downloadop-kernel-dev-1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1.zip
op-kernel-dev-1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1.tar.gz
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>
Diffstat (limited to 'drivers/net/eth16i.c')
-rw-r--r--drivers/net/eth16i.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/net/eth16i.c b/drivers/net/eth16i.c
index d4e24f0..874973f 100644
--- a/drivers/net/eth16i.c
+++ b/drivers/net/eth16i.c
@@ -1027,7 +1027,7 @@ static void eth16i_timeout(struct net_device *dev)
inw(ioaddr + TX_STATUS_REG), (inb(ioaddr + TX_STATUS_REG) & TX_DONE) ?
"IRQ conflict" : "network cable problem");
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
/* Let's dump all registers */
if(eth16i_debug > 0) {
@@ -1047,7 +1047,7 @@ static void eth16i_timeout(struct net_device *dev)
}
dev->stats.tx_errors++;
eth16i_reset(dev);
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
outw(ETH16I_INTR_ON, ioaddr + TX_INTR_REG);
netif_wake_queue(dev);
}
@@ -1109,7 +1109,6 @@ static netdev_tx_t eth16i_tx(struct sk_buff *skb, struct net_device *dev)
outb(TX_START | lp->tx_queue, ioaddr + TRANSMIT_START_REG);
lp->tx_queue = 0;
lp->tx_queue_len = 0;
- dev->trans_start = jiffies;
lp->tx_started = 1;
netif_wake_queue(dev);
}
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