[PATCH RFC net-next 1/5] net: mvpp2: add support for hardware timestamps

[Russell King <rmk+kernel@armlinux.org.uk>]

Add support for hardware timestamps in (e.g.) the PHY by calling
skb_tx_timestamp() as close as reasonably possible to the point that
the hardware is instructed to send the queued packets.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 416a926a8281..e3f8aa139d1e 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4439,6 +4439,8 @@ static netdev_tx_t mvpp2_tx(struct sk_buff *skb, struct net_device *dev)
 		txq_pcpu->count += frags;
 		aggr_txq->count += frags;
 
+		skb_tx_timestamp(skb);
+
 		/* Enable transmit */
 		wmb();
 		mvpp2_aggr_txq_pend_desc_add(port, frags);
-- 
2.30.2