tipc: implement configuration of UDP media MTU
In previous commit, we changed the default emulated MTU for UDP bearers
to 14k.
This commit adds the functionality to set/change the default value
by configuring new MTU for UDP media. UDP bearer(s) have to be disabled
and enabled back for the new MTU to take effect.
Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: GhantaKrishnamurthy MohanKrishna <mohan.krishna.ghanta.krishnamurthy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index 6efcee6..394290c 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -94,6 +94,8 @@
* @priority: default link (and bearer) priority
* @tolerance: default time (in ms) before declaring link failure
* @window: default window (in packets) before declaring link congestion
+ * @mtu: max packet size bearer can support for media type not dependent on
+ * underlying device MTU
* @type_id: TIPC media identifier
* @hwaddr_len: TIPC media address len
* @name: media name
@@ -118,6 +120,7 @@
u32 priority;
u32 tolerance;
u32 window;
+ u32 mtu;
u32 type_id;
u32 hwaddr_len;
char name[TIPC_MAX_MEDIA_NAME];