[TIPC] Initial merge

TIPC (Transparent Inter Process Communication) is a protocol designed for
intra cluster communication. For more information see
http://tipc.sourceforge.net

Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>

include/net/tipc/tipc_port.h

@@ -0,0 +1,105 @@
+/*
+ * include/net/tipc/tipc_port.h: Include file for privileged access to TIPC ports
+ * 
+ * Copyright (c) 2003-2005, Ericsson Research Canada
+ * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005-2006, Ericsson AB
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this 
+ * list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation 
+ * and/or other materials provided with the distribution.
+ * Neither the names of the copyright holders nor the names of its 
+ * contributors may be used to endorse or promote products derived from this 
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _NET_TIPC_PORT_H_
+#define _NET_TIPC_PORT_H_
+
+#ifdef __KERNEL__
+
+#include <linux/tipc.h>
+#include <linux/skbuff.h>
+#include <net/tipc/tipc_msg.h>
+
+#define TIPC_FLOW_CONTROL_WIN 512
+
+/**
+ * struct tipc_port - native TIPC port info available to privileged users
+ * @usr_handle: pointer to additional user-defined information about port
+ * @lock: pointer to spinlock for controlling access to port
+ * @connected: non-zero if port is currently connected to a peer port
+ * @conn_type: TIPC type used when connection was established
+ * @conn_instance: TIPC instance used when connection was established
+ * @conn_unacked: number of unacknowledged messages received from peer port
+ * @published: non-zero if port has one or more associated names
+ * @congested: non-zero if cannot send because of link or port congestion
+ * @ref: unique reference to port in TIPC object registry
+ * @phdr: preformatted message header used when sending messages
+ */
+
+struct tipc_port {
+        void *usr_handle;
+        spinlock_t *lock;
+	int connected;
+        u32 conn_type;
+        u32 conn_instance;
+	u32 conn_unacked;
+	int published;
+	u32 congested;
+	u32 ref;
+	struct tipc_msg phdr;
+};
+
+
+/**
+ * tipc_createport_raw - create a native TIPC port and return it's reference
+ *
+ * Note: 'dispatcher' and 'wakeup' deliver a locked port.
+ */
+
+u32 tipc_createport_raw(void *usr_handle,
+			u32 (*dispatcher)(struct tipc_port *, struct sk_buff *),
+			void (*wakeup)(struct tipc_port *),
+			const u32 importance);
+
+/*
+ * tipc_set_msg_option(): port must be locked.
+ */
+int tipc_set_msg_option(struct tipc_port *tp_ptr,
+			const char *opt,
+			const u32 len);
+
+int tipc_reject_msg(struct sk_buff *buf, u32 err);
+
+int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode);
+
+void tipc_acknowledge(u32 port_ref,u32 ack);
+
+struct tipc_port *tipc_get_port(const u32 ref);
+
+void *tipc_get_handle(const u32 ref);
+
+
+#endif
+
+#endif
+