r8169: add basic MII ioctl support

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 0025b8367ece..ace895b2e221 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -1475,6 +1475,32 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
                 printk(KERN_INFO PFX "%s: TBI auto-negotiating\n", dev->name);
 }
 
+static int rtl8169_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+        struct rtl8169_private *tp = netdev_priv(dev);
+        struct mii_ioctl_data *data = if_mii(ifr);
+
+        if (!netif_running(dev))
+                return -ENODEV;
+
+        switch (cmd) {
+        case SIOCGMIIPHY:
+                data->phy_id = 32; /* Internal PHY */
+                return 0;
+
+        case SIOCGMIIREG:
+                data->val_out = mdio_read(tp->mmio_addr, data->reg_num & 0x1f);
+                return 0;
+
+        case SIOCSMIIREG:
+                if (!capable(CAP_NET_ADMIN))
+                        return -EPERM;
+                mdio_write(tp->mmio_addr, data->reg_num & 0x1f, data->val_in);
+                return 0;
+        }
+        return -EOPNOTSUPP;
+}
+
 static int __devinit
 rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
@@ -1639,6 +1665,8 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
                 tp->phy_reset_enable = rtl8169_xmii_reset_enable;
                 tp->phy_reset_pending = rtl8169_xmii_reset_pending;
                 tp->link_ok = rtl8169_xmii_link_ok;
+
+                dev->do_ioctl = rtl8169_ioctl;
         }
 
         /* Get MAC address.  FIXME: read EEPROM */