poll controller support

 ixp400_eth.c |   22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

--- ixp400-eth/ixp400_eth.c	1970-01-01 00:00:00.000000000 +0000
+++ ixp400-eth/ixp400_eth.c	1970-01-01 00:00:00.000000000 +0000
@@ -348,6 +348,12 @@ static int dev_pmu_timer_init(void);
 extern void 
 ixEthTxFrameDoneQMCallback(IxQMgrQId qId, IxQMgrCallbackId callbackId);
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/* poll controller (needed for netconsole et al) */
+static void
+ixp425eth_poll_controller(struct net_device *dev);
+#endif
+
 /* Private device data */
 typedef struct {
     spinlock_t lock;  /* multicast management lock */
@@ -3060,6 +3066,19 @@ static int set_mac_address(struct net_de
     return 0;
 }
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ * (stolen from 8139too.c by siddy)
+ */
+static void ixp425eth_poll_controller(struct net_device *dev)
+{
+        disable_irq(dev->irq);
+        dev_qmgr_os_isr(dev->irq, dev, NULL);
+        enable_irq(dev->irq);
+}
+#endif
 
 /* 
  *  TX QDISC
@@ -3270,6 +3289,9 @@ static int __devinit dev_eth_probe(struc
     ndev->get_stats = dev_get_stats;
     ndev->set_multicast_list = dev_set_multicast_list;
     ndev->flags |= IFF_MULTICAST;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+    ndev->poll_controller = ixp425eth_poll_controller;
+#endif
 
     ndev->set_mac_address = set_mac_address;