[PATCH 1/1] xen-netback: add software timestamp capabilities

[Luca Fancellu <luca.fancellu@xxxxxxx>]

Add software timestamp capabilities to the xen-netback driver
by advertising it on the struct ethtool_ops and calling
skb_tx_timestamp before passing the buffer to the queue.

Signed-off-by: Luca Fancellu <luca.fancellu@xxxxxxx>
---
 drivers/net/xen-netback/interface.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/interface.c 
b/drivers/net/xen-netback/interface.c
index f3f2c07423a6..b71158967123 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -254,6 +254,9 @@ xenvif_start_xmit(struct sk_buff *skb, struct net_device 
*dev)
        if (vif->hash.alg == XEN_NETIF_CTRL_HASH_ALGORITHM_NONE)
                skb_clear_hash(skb);
 
+       /* timestamp packet in software */
+       skb_tx_timestamp(skb);
+
        if (!xenvif_rx_queue_tail(queue, skb))
                goto drop;
 
@@ -460,7 +463,7 @@ static void xenvif_get_strings(struct net_device *dev, u32 
stringset, u8 * data)
 
 static const struct ethtool_ops xenvif_ethtool_ops = {
        .get_link       = ethtool_op_get_link,
-
+       .get_ts_info    = ethtool_op_get_ts_info,
        .get_sset_count = xenvif_get_sset_count,
        .get_ethtool_stats = xenvif_get_ethtool_stats,
        .get_strings = xenvif_get_strings,
-- 
2.34.1