1 files changed, 69 insertions, 12 deletions

diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c
index 24bd3486ee63..760b5327b81b 100644
--- a/drivers/usb/net/usbnet.c
+++ b/drivers/usb/net/usbnet.c
@@ -554,7 +554,7 @@ static int usbnet_stop (struct net_device *net)
 {
         struct usbnet           *dev = netdev_priv(net);
         int                     temp;
-        DECLARE_WAIT_QUEUE_HEAD (unlink_wakeup); 
+        DECLARE_WAIT_QUEUE_HEAD_ONSTACK (unlink_wakeup);
         DECLARE_WAITQUEUE (wait, current);
 
         netif_stop_queue (net);
@@ -669,20 +669,40 @@ done:
  * they'll probably want to use this base set.
  */
 
-void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
+#if defined(CONFIG_MII) || defined(CONFIG_MII_MODULE)
+#define HAVE_MII
+
+int usbnet_get_settings (struct net_device *net, struct ethtool_cmd *cmd)
 {
         struct usbnet *dev = netdev_priv(net);
 
-        /* REVISIT don't always return "usbnet" */
-        strncpy (info->driver, driver_name, sizeof info->driver);
-        strncpy (info->version, DRIVER_VERSION, sizeof info->version);
-        strncpy (info->fw_version, dev->driver_info->description,
-                sizeof info->fw_version);
-        usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info);
+        if (!dev->mii.mdio_read)
+                return -EOPNOTSUPP;
+
+        return mii_ethtool_gset(&dev->mii, cmd);
 }
-EXPORT_SYMBOL_GPL(usbnet_get_drvinfo);
+EXPORT_SYMBOL_GPL(usbnet_get_settings);
+
+int usbnet_set_settings (struct net_device *net, struct ethtool_cmd *cmd)
+{
+        struct usbnet *dev = netdev_priv(net);
+        int retval;
+
+        if (!dev->mii.mdio_write)
+                return -EOPNOTSUPP;
 
-static u32 usbnet_get_link (struct net_device *net)
+        retval = mii_ethtool_sset(&dev->mii, cmd);
+
+        /* link speed/duplex might have changed */
+        if (dev->driver_info->link_reset)
+                dev->driver_info->link_reset(dev);
+
+        return retval;
+
+}
+EXPORT_SYMBOL_GPL(usbnet_set_settings);
+
+u32 usbnet_get_link (struct net_device *net)
 {
         struct usbnet *dev = netdev_priv(net);
 
@@ -690,9 +710,40 @@ static u32 usbnet_get_link (struct net_device *net)
         if (dev->driver_info->check_connect)
                 return dev->driver_info->check_connect (dev) == 0;
 
+        /* if the device has mii operations, use those */
+        if (dev->mii.mdio_read)
+                return mii_link_ok(&dev->mii);
+
         /* Otherwise, say we're up (to avoid breaking scripts) */
         return 1;
 }
+EXPORT_SYMBOL_GPL(usbnet_get_link);
+
+int usbnet_nway_reset(struct net_device *net)
+{
+        struct usbnet *dev = netdev_priv(net);
+
+        if (!dev->mii.mdio_write)
+                return -EOPNOTSUPP;
+
+        return mii_nway_restart(&dev->mii);
+}
+EXPORT_SYMBOL_GPL(usbnet_nway_reset);
+
+#endif  /* HAVE_MII */
+
+void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
+{
+        struct usbnet *dev = netdev_priv(net);
+
+        /* REVISIT don't always return "usbnet" */
+        strncpy (info->driver, driver_name, sizeof info->driver);
+        strncpy (info->version, DRIVER_VERSION, sizeof info->version);
+        strncpy (info->fw_version, dev->driver_info->description,
+                sizeof info->fw_version);
+        usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info);
+}
+EXPORT_SYMBOL_GPL(usbnet_get_drvinfo);
 
 u32 usbnet_get_msglevel (struct net_device *net)
 {
@@ -712,8 +763,13 @@ EXPORT_SYMBOL_GPL(usbnet_set_msglevel);
 
 /* drivers may override default ethtool_ops in their bind() routine */
 static struct ethtool_ops usbnet_ethtool_ops = {
-        .get_drvinfo            = usbnet_get_drvinfo,
+#ifdef  HAVE_MII
+        .get_settings           = usbnet_get_settings,
+        .set_settings           = usbnet_set_settings,
         .get_link               = usbnet_get_link,
+        .nway_reset             = usbnet_nway_reset,
+#endif
+        .get_drvinfo            = usbnet_get_drvinfo,
         .get_msglevel           = usbnet_get_msglevel,
         .set_msglevel           = usbnet_set_msglevel,
 };
@@ -1094,6 +1150,7 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
         dev->delay.function = usbnet_bh;
         dev->delay.data = (unsigned long) dev;
         init_timer (&dev->delay);
+        mutex_init (&dev->phy_mutex);
 
         SET_MODULE_OWNER (net);
         dev->net = net;
@@ -1225,7 +1282,7 @@ EXPORT_SYMBOL_GPL(usbnet_resume);
 static int __init usbnet_init(void)
 {
         /* compiler should optimize this out */
-        BUG_ON (sizeof (((struct sk_buff *)0)->cb)
+        BUILD_BUG_ON (sizeof (((struct sk_buff *)0)->cb)
                         < sizeof (struct skb_data));
 
         random_ether_addr(node_id);