[PATCH net-next v4 04/12] bridge: mrp: Extend br_mrp for MRP interconnect

[Horatiu Vultur <horatiu.vultur@microchip.com>]

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>
---
 net/bridge/br_private_mrp.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/bridge/br_private_mrp.h b/net/bridge/br_private_mrp.h
index 315eb37d89f0f..8841ba847fb29 100644
--- 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;
-- 
2.27.0