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net: dont update dev->trans_start in 10GB drivers

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Followup of commits 9d21493b4b
and 08baf56108
(net: tx scalability works : trans_start)
(net: txq_trans_update() helper)

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

Exceptions are NETIF_F_LLTX drivers (vxge & tehuti)

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
2009-05-27 19:26:37 +00:00
committed by David S. Miller
parent 3f1f39c42b
commit 28679751a9
16 changed files with 8 additions and 25 deletions
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2
drivers/net/enic/enic_main.c
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@@ -661,8 +661,6 @@ static int enic_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
if (vnic_wq_desc_avail(wq) < MAX_SKB_FRAGS + 1)
netif_stop_queue(netdev);
netdev->trans_start = jiffies;
spin_unlock_irqrestore(&enic->wq_lock[0], flags);
return NETDEV_TX_OK;