[PATCH] netpoll for tulip

Netpoll for tulip. Uses disable_irq() because tulip is unfortunately
still lockless.

drivers/net/tulip/tulip_core.c

@@ -247,7 +247,7 @@ static void tulip_down(struct net_device *dev);
 static struct net_device_stats *tulip_get_stats(struct net_device *dev);
 static int private_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 static void set_rx_mode(struct net_device *dev);
-
+static void poll_tulip(struct net_device *dev);
 
 
 static void tulip_set_power_state (struct tulip_private *tp,
@@ -1633,6 +1633,9 @@ static int __devinit tulip_init_one (struct pci_dev *pdev,
 	dev->get_stats = tulip_get_stats;
 	dev->do_ioctl = private_ioctl;
 	dev->set_multicast_list = set_rx_mode;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	dev->poll_controller = &poll_tulip;
+#endif
 
 	if (register_netdev(dev))
 		goto err_out_free_ring;
@@ -1789,6 +1792,22 @@ static void __devexit tulip_remove_one (struct pci_dev *pdev)
 	/* pci_power_off (pdev, -1); */
 }
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+
+static void poll_tulip (struct net_device *dev)
+{
+	/* disable_irq here is not very nice, but with the lockless
+	   interrupt handler we have no other choice. */
+	disable_irq(dev->irq);
+	tulip_interrupt (dev->irq, dev, NULL);
+	enable_irq(dev->irq);
+}
+#endif
 
 static struct pci_driver tulip_driver = {
 	.name		= DRV_NAME,