From: Amir Vadai <amirv@mellanox.com>
Date: Tue, 23 Apr 2013 06:06:50 +0000 (+0000)
Subject: net/mlx4_en: Support software timestamping
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=eb0cabbd1bebbf41858ded768c9cad8840708447;p=openwrt%2Fstaging%2Fblogic.git

net/mlx4_en: Support software timestamping

Kernel software timestamping requires that the driver calls skb_tx_timestamp
just before passing the skb to the HW MAC layer. This patch adds this call.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index b0a2d2b96e43..4e6877a032a8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -752,6 +752,8 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (bounce)
 		tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
 
+	skb_tx_timestamp(skb);
+
 	if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tx_tag_present(skb)) {
 		*(__be32 *) (&tx_desc->ctrl.vlan_tag) |= cpu_to_be32(ring->doorbell_qpn);
 		op_own |= htonl((bf_index & 0xffff) << 8);