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c6676e7d62
A node that has the MRA role, it can behave as MRM or MRC. Initially it starts as MRM and sends MRP_Test frames on both ring ports. If it detects that there are MRP_Test send by another MRM, then it checks if these frames have a lower priority than itself. In this case it would send MRP_Nack frames to notify the other node that it needs to stop sending MRP_Test frames. If it receives a MRP_Nack frame then it stops sending MRP_Test frames and starts to behave as a MRC but it would continue to monitor the MRP_Test frames send by MRM. If at a point the MRM stops to send MRP_Test frames it would get the MRM role and start to send MRP_Test frames. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _BR_PRIVATE_MRP_H_
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#define _BR_PRIVATE_MRP_H_
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#include "br_private.h"
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#include <uapi/linux/mrp_bridge.h>
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struct br_mrp {
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/* list of mrp instances */
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struct list_head __rcu list;
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struct net_bridge_port __rcu *p_port;
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struct net_bridge_port __rcu *s_port;
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u32 ring_id;
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u16 prio;
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enum br_mrp_ring_role_type ring_role;
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u8 ring_role_offloaded;
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enum br_mrp_ring_state_type ring_state;
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u32 ring_transitions;
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struct delayed_work test_work;
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u32 test_interval;
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unsigned long test_end;
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u32 test_count_miss;
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u32 test_max_miss;
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bool test_monitor;
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u32 seq_id;
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struct rcu_head rcu;
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};
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/* br_mrp.c */
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int br_mrp_add(struct net_bridge *br, struct br_mrp_instance *instance);
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int br_mrp_del(struct net_bridge *br, struct br_mrp_instance *instance);
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int br_mrp_set_port_state(struct net_bridge_port *p,
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enum br_mrp_port_state_type state);
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int br_mrp_set_port_role(struct net_bridge_port *p,
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enum br_mrp_port_role_type role);
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int br_mrp_set_ring_state(struct net_bridge *br,
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struct br_mrp_ring_state *state);
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int br_mrp_set_ring_role(struct net_bridge *br, struct br_mrp_ring_role *role);
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int br_mrp_start_test(struct net_bridge *br, struct br_mrp_start_test *test);
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/* br_mrp_switchdev.c */
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int br_mrp_switchdev_add(struct net_bridge *br, struct br_mrp *mrp);
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int br_mrp_switchdev_del(struct net_bridge *br, struct br_mrp *mrp);
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int br_mrp_switchdev_set_ring_role(struct net_bridge *br, struct br_mrp *mrp,
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enum br_mrp_ring_role_type role);
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int br_mrp_switchdev_set_ring_state(struct net_bridge *br, struct br_mrp *mrp,
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enum br_mrp_ring_state_type state);
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int br_mrp_switchdev_send_ring_test(struct net_bridge *br, struct br_mrp *mrp,
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u32 interval, u8 max_miss, u32 period,
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bool monitor);
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int br_mrp_port_switchdev_set_state(struct net_bridge_port *p,
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enum br_mrp_port_state_type state);
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int br_mrp_port_switchdev_set_role(struct net_bridge_port *p,
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enum br_mrp_port_role_type role);
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/* br_mrp_netlink.c */
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int br_mrp_port_open(struct net_device *dev, u8 loc);
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#endif /* _BR_PRIVATE_MRP_H */
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