bridge: mrp: Extend br_mrp for MRP interconnect

This patch extends the 'struct br_mrp' to contain information regarding
the MRP interconnect. It contains the following:
- the interconnect port 'i_port', which is NULL if the node doesn't have
  a interconnect role
- the interconnect id, which is similar with the ring id, but this field
  is also part of the MRP_InTest frames.
- the interconnect role, which can be MIM or MIC.
- the interconnect state, which can be open or closed.
- the interconnect delayed_work for sending MRP_InTest frames and check
  for lost of continuity.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/bridge/br_private_mrp.h b/net/bridge/br_private_mrp.h
index 315eb37..8841ba8 100644 (file)
--- a/net/bridge/br_private_mrp.h
+++ b/net/bridge/br_private_mrp.h
@@ -12,8 +12,10 @@ struct br_mrp {
 
        struct net_bridge_port __rcu    *p_port;
        struct net_bridge_port __rcu    *s_port;
+       struct net_bridge_port __rcu    *i_port;
 
        u32                             ring_id;
+       u16                             in_id;
        u16                             prio;
 
        enum br_mrp_ring_role_type      ring_role;
@@ -21,6 +23,11 @@ struct br_mrp {
        enum br_mrp_ring_state_type     ring_state;
        u32                             ring_transitions;
 
+       enum br_mrp_in_role_type        in_role;
+       u8                              in_role_offloaded;
+       enum br_mrp_in_state_type       in_state;
+       u32                             in_transitions;
+
        struct delayed_work             test_work;
        u32                             test_interval;
        unsigned long                   test_end;
@@ -28,6 +35,12 @@ struct br_mrp {
        u32                             test_max_miss;
        bool                            test_monitor;
 
+       struct delayed_work             in_test_work;
+       u32                             in_test_interval;
+       unsigned long                   in_test_end;
+       u32                             in_test_count_miss;
+       u32                             in_test_max_miss;
+
        u32                             seq_id;
 
        struct rcu_head                 rcu;