e1000e: Implement the SIOCGHWTSTAMP ioctl

Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index f028165753694500fb9ac0d22e5ad44974592ea3..03e6af736de41197dc7ce479c42e4bcb8f6b9f76 100644 (file)
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -5790,7 +5790,7 @@ static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
  * specified. Matching the kind of event packet is not supported, with the
  * exception of "all V2 events regardless of level 2 or 4".
  **/
-static int e1000e_hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr)
+static int e1000e_hwtstamp_set(struct net_device *netdev, struct ifreq *ifr)
 {
        struct e1000_adapter *adapter = netdev_priv(netdev);
        struct hwtstamp_config config;
@@ -5825,6 +5825,14 @@ static int e1000e_hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr)
                            sizeof(config)) ? -EFAULT : 0;
 }
 
+static int e1000e_hwtstamp_get(struct net_device *netdev, struct ifreq *ifr)
+{
+       struct e1000_adapter *adapter = netdev_priv(netdev);
+
+       return copy_to_user(ifr->ifr_data, &adapter->hwtstamp_config,
+                           sizeof(adapter->hwtstamp_config)) ? -EFAULT : 0;
+}
+
 static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 {
        switch (cmd) {
@@ -5833,7 +5841,9 @@ static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
        case SIOCSMIIREG:
                return e1000_mii_ioctl(netdev, ifr, cmd);
        case SIOCSHWTSTAMP:
-               return e1000e_hwtstamp_ioctl(netdev, ifr);
+               return e1000e_hwtstamp_set(netdev, ifr);
+       case SIOCGHWTSTAMP:
+               return e1000e_hwtstamp_get(netdev, ifr);
        default:
                return -EOPNOTSUPP;
        }