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| author | Jon Paul Maloy | 2015-10-22 14:51:43 +0200 |
|---|---|---|
| committer | David S. Miller | 2015-10-24 15:56:40 +0200 |
| commit | 959e1781aa230aecc90e4deb80117fd9a53dede7 (patch) | |
| tree | 623deab93b0a27fe2208d1c1da55741d6cd926bc /net/tipc/bearer.c | |
| parent | tipc: simplify bearer level broadcast (diff) | |
| download | kernel-qcow2-linux-959e1781aa230aecc90e4deb80117fd9a53dede7.tar.gz kernel-qcow2-linux-959e1781aa230aecc90e4deb80117fd9a53dede7.tar.xz kernel-qcow2-linux-959e1781aa230aecc90e4deb80117fd9a53dede7.zip | |
tipc: introduce jumbo frame support for broadcast
Until now, we have only been supporting a fix MTU size of 1500 bytes
for all broadcast media, irrespective of their actual capability.
We now make the broadcast MTU adaptable to the carrying media, i.e.,
we use the smallest MTU supported by any of the interfaces attached
to TIPC.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/bearer.c')
| -rw-r--r-- | net/tipc/bearer.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c index 62f47ecc6b84..b39f631fd6d7 100644 --- a/net/tipc/bearer.c +++ b/net/tipc/bearer.c @@ -464,6 +464,19 @@ void tipc_bearer_send(struct net *net, u32 bearer_id, struct sk_buff *buf, rcu_read_unlock(); } +int tipc_bearer_mtu(struct net *net, u32 bearer_id) +{ + int mtu = 0; + struct tipc_bearer *b; + + rcu_read_lock(); + b = rcu_dereference_rtnl(tipc_net(net)->bearer_list[bearer_id]); + if (b) + mtu = b->mtu; + rcu_read_unlock(); + return mtu; +} + /* tipc_bearer_xmit() -send buffer to destination over bearer */ void tipc_bearer_xmit(struct net *net, u32 bearer_id, |