qla3xxx: Remove API to change MTU.

This network device driver shares the same hardware as the qla4xxx
iSCSI driver. Changing the MTU via the device interface will
cause qla4xxx to crash as there is no way to make notification.
Users wishing to change the MTU must do so using an iSCSI
utility such as Qlogic SanSurfer. This forces the user to
unload/reload this network device driver after the MTU
value has been changed in flash.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

Author: Ron Mercer

drivers/net/qla3xxx.c

@@ -3354,27 +3354,6 @@ static struct net_device_stats *ql3xxx_get_stats(struct net_device *dev)
 	return &qdev->stats;
 }
 
-static int ql3xxx_change_mtu(struct net_device *ndev, int new_mtu)
-{
-	struct ql3_adapter *qdev = netdev_priv(ndev);
-	printk(KERN_ERR PFX "%s:  new mtu size = %d.\n", ndev->name, new_mtu);
-	if (new_mtu != NORMAL_MTU_SIZE && new_mtu != JUMBO_MTU_SIZE) {
-		printk(KERN_ERR PFX
-		       "%s: mtu size of %d is not valid.  Use exactly %d or "
-		       "%d.\n", ndev->name, new_mtu, NORMAL_MTU_SIZE,
-		       JUMBO_MTU_SIZE);
-		return -EINVAL;
-	}
-
-	if (!netif_running(ndev)) {
-		ndev->mtu = new_mtu;
-		return 0;
-	}
-
-	ndev->mtu = new_mtu;
-	return ql_cycle_adapter(qdev,QL_DO_RESET);
-}
-
 static void ql3xxx_set_multicast_list(struct net_device *ndev)
 {
 	/*
@@ -3666,7 +3645,6 @@ static int __devinit ql3xxx_probe(struct pci_dev *pdev,
 	ndev->hard_start_xmit = ql3xxx_send;
 	ndev->stop = ql3xxx_close;
 	ndev->get_stats = ql3xxx_get_stats;
-	ndev->change_mtu = ql3xxx_change_mtu;
 	ndev->set_multicast_list = ql3xxx_set_multicast_list;
 	SET_ETHTOOL_OPS(ndev, &ql3xxx_ethtool_ops);
 	ndev->set_mac_address = ql3xxx_set_mac_address;
@@ -3691,9 +3669,11 @@ static int __devinit ql3xxx_probe(struct pci_dev *pdev,
 
 	/* Validate and set parameters */
 	if (qdev->mac_index) {
+		ndev->mtu = qdev->nvram_data.macCfg_port1.etherMtu_mac ;
 		memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn2.macAddress,
 		       ETH_ALEN);
 	} else {
+		ndev->mtu = qdev->nvram_data.macCfg_port0.etherMtu_mac ;
 		memcpy(ndev->dev_addr, &qdev->nvram_data.funcCfg_fn0.macAddress,
 		       ETH_ALEN);
 	}