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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>
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@ -752,6 +752,8 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
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if (bounce)
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tx_desc = mlx4_en_bounce_to_desc(priv, ring, index, desc_size);
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skb_tx_timestamp(skb);
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if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tx_tag_present(skb)) {
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*(__be32 *) (&tx_desc->ctrl.vlan_tag) |= cpu_to_be32(ring->doorbell_qpn);
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op_own |= htonl((bf_index & 0xffff) << 8);
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