tipc: add new functions for multicast and broadcast distribution
We add a new broadcast link transmit function in bclink.c and a new
receive function in socket.c. The purpose is to move the branching
between external and internal destination down to the link layer,
just as we have done with unicast in earlier commits. We also make
use of the new link-independent fragmentation support that was
introduced in an earlier commit series.
This gives a shorter and simpler code path, and makes it possible
to obtain copy-free buffer delivery to all node local destination
sockets.
The new transmission code is added in parallel with the existing one,
and will be used by the socket multicast send function in the next
commit in this series.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
index 00330c4..d90645f 100644
--- a/net/tipc/bcast.h
+++ b/net/tipc/bcast.h
@@ -1,7 +1,7 @@
/*
* net/tipc/bcast.h: Include file for TIPC broadcast code
*
- * Copyright (c) 2003-2006, Ericsson AB
+ * Copyright (c) 2003-2006, 2014, Ericsson AB
* Copyright (c) 2005, 2010-2011, Wind River Systems
* All rights reserved.
*
@@ -98,5 +98,7 @@
int tipc_bclink_reset_stats(void);
int tipc_bclink_set_queue_limits(u32 limit);
void tipc_bcbearer_sort(struct tipc_node_map *nm_ptr, u32 node, bool action);
+uint tipc_bclink_get_mtu(void);
+int tipc_bclink_xmit2(struct sk_buff *buf);
#endif