tg3: enable transmit time stamping.

This patch enables software (and phy device) transmit time stamping
for the TIGON3 driver. Compile tested only.

Cc: Matt Carlson <mcarlson@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index c8a145d..aa1d1de 100644 (file)
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -6092,6 +6092,8 @@ static netdev_tx_t tg3_start_xmit(struct sk_buff *skb, struct net_device *dev)
        /* Packets are ready, update Tx producer idx local and on card. */
        tw32_tx_mbox(tnapi->prodmbox, entry);
 
+       skb_tx_timestamp(skb);
+
        tnapi->tx_prod = entry;
        if (unlikely(tg3_tx_avail(tnapi) <= (MAX_SKB_FRAGS + 1))) {
                netif_tx_stop_queue(txq);