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authorRichard Cochran <richardcochran@gmail.com>2014-11-21 14:16:20 +0100
committerDavid S. Miller <davem@davemloft.net>2014-11-21 15:35:53 -0500
commit37dd9255b2f6201195946014600a8d857f846cf4 (patch)
tree71b49e261f7d86018cb638d29b14382b34935afb /net/8021q
parentcd91a88b9983802d65d48aaa8a38161c85c74203 (diff)
vlan: Pass ethtool get_ts_info queries to real device.
Commit a6111d3c "vlan: Pass SIOC[SG]HWTSTAMP ioctls to real device" intended to enable hardware time stamping on VLAN interfaces, but passing SIOCSHWTSTAMP is only half of the story. This patch adds the second half, by letting user space find out the time stamping capabilities of the device backing a VLAN interface. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/8021q')
-rw-r--r--net/8021q/vlan_dev.c19
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 = {

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