summaryrefslogtreecommitdiffstats
path: root/drivers/net/dl2k.c
diff options
context:
space:
mode:
authorEric Dumazet <eric.dumazet@gmail.com>2009-05-28 02:00:41 +0200
committerDavid S. Miller <davem@davemloft.net>2009-05-29 10:46:27 +0200
commitcdd0db058d64f2619b08e7d098ee0014aa0a5bc1 (patch)
treea5e31f6687eff581309b095781c7e2f0bc676182 /drivers/net/dl2k.c
parentnet: dont update dev->trans_start in 10GB drivers (diff)
downloadlinux-cdd0db058d64f2619b08e7d098ee0014aa0a5bc1.tar.xz
linux-cdd0db058d64f2619b08e7d098ee0014aa0a5bc1.zip
net: dont update dev->trans_start
Second round of drivers for Gb cards (and NIU one I forgot in the 10GB round) 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/dl2k.c')
-rw-r--r--drivers/net/dl2k.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index 4a1b554654eb..895d72143ee0 100644
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -539,7 +539,7 @@ rio_tx_timeout (struct net_device *dev)
dev->name, readl (ioaddr + TxStatus));
rio_free_tx(dev, 0);
dev->if_port = 0;
- dev->trans_start = jiffies;
+ dev->trans_start = jiffies; /* prevent tx timeout */
}
/* allocate and initialize Tx and Rx descriptors */
@@ -610,7 +610,7 @@ start_xmit (struct sk_buff *skb, struct net_device *dev)
if (np->link_status == 0) { /* Link Down */
dev_kfree_skb(skb);
- return 0;
+ return NETDEV_TX_OK;
}
ioaddr = dev->base_addr;
entry = np->cur_tx % TX_RING_SIZE;
@@ -665,9 +665,7 @@ start_xmit (struct sk_buff *skb, struct net_device *dev)
writel (0, dev->base_addr + TFDListPtr1);
}
- /* NETDEV WATCHDOG timer */
- dev->trans_start = jiffies;
- return 0;
+ return NETDEV_TX_OK;
}
static irqreturn_t