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According to the standard IEC 62439-2, in case the node behaves as MRA and needs to send Test frames on ring ports, then these Test frames need to have an Option TLV and a Sub-Option TLV which has the type AUTO_MGR. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
149 lines
4.3 KiB
C
149 lines
4.3 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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#define MRP_OPT_PADDING 0x2
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struct br_mrp {
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/* list of mrp instances */
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struct hlist_node 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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struct net_bridge_port __rcu *i_port;
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u32 ring_id;
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u16 in_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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enum br_mrp_in_role_type in_role;
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u8 in_role_offloaded;
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enum br_mrp_in_state_type in_state;
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u32 in_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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struct delayed_work in_test_work;
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u32 in_test_interval;
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unsigned long in_test_end;
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u32 in_test_count_miss;
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u32 in_test_max_miss;
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u32 seq_id;
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struct rcu_head rcu;
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};
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/* This type is returned by br_mrp_switchdev functions that allow to have a SW
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* backup in case the HW can't implement completely the protocol.
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* BR_MRP_NONE - means the HW can't run at all the protocol, so the SW stops
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* configuring the node anymore.
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* BR_MRP_SW - the HW can help the SW to run the protocol, by redirecting MRP
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* frames to CPU.
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* BR_MRP_HW - the HW can implement completely the protocol.
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*/
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enum br_mrp_hw_support {
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BR_MRP_NONE,
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BR_MRP_SW,
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BR_MRP_HW,
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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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int br_mrp_set_in_state(struct net_bridge *br, struct br_mrp_in_state *state);
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int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role);
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int br_mrp_start_in_test(struct net_bridge *br,
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struct br_mrp_start_in_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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enum br_mrp_hw_support
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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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enum br_mrp_hw_support
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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, u32 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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enum br_mrp_hw_support
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br_mrp_switchdev_set_in_role(struct net_bridge *br, struct br_mrp *mrp,
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u16 in_id, u32 ring_id,
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enum br_mrp_in_role_type role);
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int br_mrp_switchdev_set_in_state(struct net_bridge *br, struct br_mrp *mrp,
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enum br_mrp_in_state_type state);
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enum br_mrp_hw_support
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br_mrp_switchdev_send_in_test(struct net_bridge *br, struct br_mrp *mrp,
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u32 interval, u8 max_miss, u32 period);
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/* br_mrp_netlink.c */
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int br_mrp_ring_port_open(struct net_device *dev, u8 loc);
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int br_mrp_in_port_open(struct net_device *dev, u8 loc);
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/* MRP protocol data units */
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struct br_mrp_tlv_hdr {
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__u8 type;
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__u8 length;
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};
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struct br_mrp_common_hdr {
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__be16 seq_id;
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__u8 domain[MRP_DOMAIN_UUID_LENGTH];
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};
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struct br_mrp_ring_test_hdr {
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__be16 prio;
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__u8 sa[ETH_ALEN];
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__be16 port_role;
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__be16 state;
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__be16 transitions;
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__be32 timestamp;
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} __attribute__((__packed__));
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struct br_mrp_in_test_hdr {
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__be16 id;
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__u8 sa[ETH_ALEN];
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__be16 port_role;
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__be16 state;
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__be16 transitions;
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__be32 timestamp;
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} __attribute__((__packed__));
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struct br_mrp_oui_hdr {
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__u8 oui[MRP_OUI_LENGTH];
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};
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struct br_mrp_sub_option1_hdr {
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__u8 type;
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__u8 data[MRP_MANUFACTURE_DATA_LENGTH];
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};
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#endif /* _BR_PRIVATE_MRP_H */
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