1 files changed, 67 insertions, 0 deletions
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
new file mode 100644
index 000000000000..c0d8b90c5202
--- /dev/null
+++ b/include/linux/netpoll.h
@@ -0,0 +1,67 @@
+/*
+ * Common code for low-level network console, dump, and debugger code
+ *
+ * Derived from netconsole, kgdb-over-ethernet, and netdump patches
+ */
+
+#ifndef _LINUX_NETPOLL_H
+#define _LINUX_NETPOLL_H
+
+#include <linux/netdevice.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+
+struct netpoll;
+
+struct netpoll {
+	struct net_device *dev;
+	char dev_name[16], *name;
+	int rx_flags;
+	void (*rx_hook)(struct netpoll *, int, char *, int);
+	void (*drop)(struct sk_buff *skb);
+	u32 local_ip, remote_ip;
+	u16 local_port, remote_port;
+	unsigned char local_mac[6], remote_mac[6];
+	spinlock_t poll_lock;
+	int poll_owner;
+};
+
+void netpoll_poll(struct netpoll *np);
+void netpoll_send_udp(struct netpoll *np, const char *msg, int len);
+int netpoll_parse_options(struct netpoll *np, char *opt);
+int netpoll_setup(struct netpoll *np);
+int netpoll_trap(void);
+void netpoll_set_trap(int trap);
+void netpoll_cleanup(struct netpoll *np);
+int __netpoll_rx(struct sk_buff *skb);
+void netpoll_queue(struct sk_buff *skb);
+
+#ifdef CONFIG_NETPOLL
+static inline int netpoll_rx(struct sk_buff *skb)
+{
+	return skb->dev->np && skb->dev->np->rx_flags && __netpoll_rx(skb);
+}
+
+static inline void netpoll_poll_lock(struct net_device *dev)
+{
+	if (dev->np) {
+		spin_lock(&dev->np->poll_lock);
+		dev->np->poll_owner = smp_processor_id();
+	}
+}
+
+static inline void netpoll_poll_unlock(struct net_device *dev)
+{
+	if (dev->np) {
+		spin_unlock(&dev->np->poll_lock);
+		dev->np->poll_owner = -1;
+	}
+}
+
+#else
+#define netpoll_rx(a) 0
+#define netpoll_poll_lock(a)
+#define netpoll_poll_unlock(a)
+#endif
+
+#endif