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authorEric Dumazet <eric.dumazet@gmail.com>2009-05-27 15:26:37 -0400
committerDavid S. Miller <davem@davemloft.net>2009-05-29 04:46:26 -0400
commit28679751a924c11f7135641f26e99249385de5b4 (patch)
tree79e05e9ee10e62b02c52e3a5af11dd3dfa28a0e2 /drivers/net/mlx4
parent3f1f39c42b24d5c20eb593ce80b9c4d5ec1e2148 (diff)
net: dont update dev->trans_start in 10GB drivers
Followup of commits 9d21493b4beb8f918ba248032fefa393074a5e2b and 08baf561083bc27a953aa087dd8a664bb2b88e8e (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>
Diffstat (limited to 'drivers/net/mlx4')
-rw-r--r--drivers/net/mlx4/en_tx.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/mlx4/en_tx.c b/drivers/net/mlx4/en_tx.c
index ac6fc499b280..1c83a96fde35 100644
--- a/drivers/net/mlx4/en_tx.c
+++ b/drivers/net/mlx4/en_tx.c
@@ -819,7 +819,6 @@ int mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
819 /* Ring doorbell! */ 819 /* Ring doorbell! */
820 wmb(); 820 wmb();
821 writel(ring->doorbell_qpn, mdev->uar_map + MLX4_SEND_DOORBELL); 821 writel(ring->doorbell_qpn, mdev->uar_map + MLX4_SEND_DOORBELL);
822 dev->trans_start = jiffies;
823 822
824 /* Poll CQ here */ 823 /* Poll CQ here */
825 mlx4_en_xmit_poll(priv, tx_ind); 824 mlx4_en_xmit_poll(priv, tx_ind);