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virtio_net: add software timestamp support 

This patch enables the use of software timestamping via the virtio_net
driver.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jacob Keller 2014-06-25 02:37:13 +00:00 committed by Jeff Kirsher
parent 6930895df9
commit 074c358219
1 changed files with 4 additions and 0 deletions
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4
drivers/net/virtio_net.c
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@ -925,6 +925,9 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
/* Free up any pending old buffers before queueing new ones. */
free_old_xmit_skbs(sq);
/* timestamp packet in software */
skb_tx_timestamp(skb);
/* Try to transmit */
err = xmit_skb(sq, skb);
@ -1376,6 +1379,7 @@ static const struct ethtool_ops virtnet_ethtool_ops = {
.get_ringparam = virtnet_get_ringparam,
.set_channels = virtnet_set_channels,
.get_channels = virtnet_get_channels,
.get_ts_info = ethtool_op_get_ts_info,
};
#define MIN_MTU 68