Tsi108_eth: Add ethtool support

Add ethtool support to tsi108_eth network driver.

Signed-off-by: Alexandre Bounine <alexandreb@tundra.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/tsi108_eth.c

@@ -36,6 +36,7 @@
 #include <linux/net.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
+#include <linux/ethtool.h>
 #include <linux/skbuff.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
@@ -1519,12 +1520,46 @@ static void tsi108_init_mac(struct net_device *dev)
 	TSI_WRITE(TSI108_EC_INTMASK, ~0);
 }
 
+static int tsi108_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct tsi108_prv_data *data = netdev_priv(dev);
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&data->txlock, flags);
+	rc = mii_ethtool_gset(&data->mii_if, cmd);
+	spin_unlock_irqrestore(&data->txlock, flags);
+
+	return rc;
+}
+
+static int tsi108_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+	struct tsi108_prv_data *data = netdev_priv(dev);
+	unsigned long flags;
+	int rc;
+
+	spin_lock_irqsave(&data->txlock, flags);
+	rc = mii_ethtool_sset(&data->mii_if, cmd);
+	spin_unlock_irqrestore(&data->txlock, flags);
+
+	return rc;
+}
+
 static int tsi108_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
 	struct tsi108_prv_data *data = netdev_priv(dev);
+	if (!netif_running(dev))
+		return -EINVAL;
 	return generic_mii_ioctl(&data->mii_if, if_mii(rq), cmd, NULL);
 }
 
+static const struct ethtool_ops tsi108_ethtool_ops = {
+	.get_link 	= ethtool_op_get_link,
+	.get_settings	= tsi108_get_settings,
+	.set_settings	= tsi108_set_settings,
+};
+
 static int
 tsi108_init_one(struct platform_device *pdev)
 {
@@ -1589,6 +1624,7 @@ tsi108_init_one(struct platform_device *pdev)
 	dev->get_stats = tsi108_get_stats;
 	netif_napi_add(dev, &data->napi, tsi108_poll, 64);
 	dev->do_ioctl = tsi108_do_ioctl;
+	dev->ethtool_ops = &tsi108_ethtool_ops;
 
 	/* Apparently, the Linux networking code won't use scatter-gather
 	 * if the hardware doesn't do checksums.  However, it's faster