1 files changed, 19 insertions, 0 deletions

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index d6524b2b206a..376805005cc7 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -26,6 +26,7 @@
 #include <linux/slab.h>
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
+#include <linux/net_tstamp.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
 #include <net/arp.h>
@@ -669,6 +670,23 @@ static void vlan_ethtool_get_drvinfo(struct net_device *dev,
         strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
 }
 
+static int vlan_ethtool_get_ts_info(struct net_device *dev,
+                                    struct ethtool_ts_info *info)
+{
+        const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
+        const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops;
+
+        if (ops->get_ts_info) {
+                return ops->get_ts_info(vlan->real_dev, info);
+        } else {
+                info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
+                        SOF_TIMESTAMPING_SOFTWARE;
+                info->phc_index = -1;
+        }
+
+        return 0;
+}
+
 static struct rtnl_link_stats64 *vlan_dev_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 {
         struct vlan_pcpu_stats *p;
@@ -752,6 +770,7 @@ static const struct ethtool_ops vlan_ethtool_ops = {
         .get_settings           = vlan_ethtool_get_settings,
         .get_drvinfo            = vlan_ethtool_get_drvinfo,
         .get_link               = ethtool_op_get_link,
+        .get_ts_info            = vlan_ethtool_get_ts_info,
 };
 
 static const struct net_device_ops vlan_netdev_ops = {