From: Dale Farnsworth <[EMAIL PROTECTED]>
Add support for the netpoll api for use by netconsole, kgdboe, etc.
Signed-off-by: Dale Farnsworth <[EMAIL PROTECTED]>
--- linux-2.6.15-rc5-mm2/drivers/net/gianfar.c 2005-12-12 11:34:03.000000000
-0700
+++ new/drivers/net/gianfar.c 2005-12-12 11:34:09.000000000 -0700
@@ -133,6 +133,9 @@
#ifdef CONFIG_GFAR_NAPI
static int gfar_poll(struct net_device *dev, int *budget);
#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void gfar_netpoll(struct net_device *dev);
+#endif
int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit);
static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int
length);
static void gfar_vlan_rx_register(struct net_device *netdev,
@@ -261,6 +264,9 @@
dev->change_mtu = gfar_change_mtu;
dev->mtu = 1500;
dev->set_multicast_list = gfar_set_multi;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = gfar_netpoll;
+#endif
dev->ethtool_ops = &gfar_ethtool_ops;
@@ -1018,6 +1024,31 @@
return 0;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void gfar_netpoll(struct net_device *dev)
+{
+ struct gfar_private *priv = netdev_priv(dev);
+
+ if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) {
+ disable_irq(priv->interruptReceive);
+ disable_irq(priv->interruptTransmit);
+ disable_irq(priv->interruptError);
+ gfar_interrupt(priv->interruptTransmit, dev, NULL);
+ enable_irq(priv->interruptError);
+ enable_irq(priv->interruptTransmit);
+ enable_irq(priv->interruptReceive);
+ } else {
+ disable_irq(priv->interruptTransmit);
+ gfar_interrupt(priv->interruptTransmit, dev, NULL);
+ enable_irq(priv->interruptTransmit);
+ }
+}
+#endif
+
/* returns a net_device_stats structure pointer */
static struct net_device_stats * gfar_get_stats(struct net_device *dev)
{
-
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