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path: root/recipes/ixp425-eth/files/pollcontroller.patch
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# Add a poll controller to the interface - required for netconsole
--- ixp425-eth-1.1-r1/ixp425_eth.c.pre-pollcontroller	2005-03-19 14:02:32.883601440 -0800
+++ ixp425-eth-1.1-r1/ixp425_eth.c	2005-03-19 14:03:25.849549392 -0800
@@ -273,6 +273,11 @@
 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 {
     unsigned int msdu_size;
@@ -2462,6 +2467,10 @@
     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 = dev_set_mac_address;

     memcpy(ndev->dev_addr, &default_mac_addr[priv->port_id].macAddress,
@@ -2491,6 +2500,23 @@
     return res;
 }

+
+#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
+
+
+
 static int __devinit npe_eth_init_device(struct device *dev)
 {
     int res = -ENOMEM;