1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | |
3 | #ifndef _BR_PRIVATE_MRP_H_ |
4 | #define _BR_PRIVATE_MRP_H_ |
5 | |
6 | #include "br_private.h" |
7 | #include <uapi/linux/mrp_bridge.h> |
8 | |
9 | #define MRP_OPT_PADDING 0x2 |
10 | |
11 | struct br_mrp { |
12 | /* list of mrp instances */ |
13 | struct hlist_node list; |
14 | |
15 | struct net_bridge_port __rcu *p_port; |
16 | struct net_bridge_port __rcu *s_port; |
17 | struct net_bridge_port __rcu *i_port; |
18 | |
19 | u32 ring_id; |
20 | u16 in_id; |
21 | u16 prio; |
22 | |
23 | enum br_mrp_ring_role_type ring_role; |
24 | u8 ring_role_offloaded; |
25 | enum br_mrp_ring_state_type ring_state; |
26 | u32 ring_transitions; |
27 | |
28 | enum br_mrp_in_role_type in_role; |
29 | u8 in_role_offloaded; |
30 | enum br_mrp_in_state_type in_state; |
31 | u32 in_transitions; |
32 | |
33 | struct delayed_work test_work; |
34 | u32 test_interval; |
35 | unsigned long test_end; |
36 | u32 test_count_miss; |
37 | u32 test_max_miss; |
38 | bool test_monitor; |
39 | |
40 | struct delayed_work in_test_work; |
41 | u32 in_test_interval; |
42 | unsigned long in_test_end; |
43 | u32 in_test_count_miss; |
44 | u32 in_test_max_miss; |
45 | |
46 | u32 seq_id; |
47 | |
48 | struct rcu_head rcu; |
49 | }; |
50 | |
51 | /* This type is returned by br_mrp_switchdev functions that allow to have a SW |
52 | * backup in case the HW can't implement completely the protocol. |
53 | * BR_MRP_NONE - means the HW can't run at all the protocol, so the SW stops |
54 | * configuring the node anymore. |
55 | * BR_MRP_SW - the HW can help the SW to run the protocol, by redirecting MRP |
56 | * frames to CPU. |
57 | * BR_MRP_HW - the HW can implement completely the protocol. |
58 | */ |
59 | enum br_mrp_hw_support { |
60 | BR_MRP_NONE, |
61 | BR_MRP_SW, |
62 | BR_MRP_HW, |
63 | }; |
64 | |
65 | /* br_mrp.c */ |
66 | int br_mrp_add(struct net_bridge *br, struct br_mrp_instance *instance); |
67 | int br_mrp_del(struct net_bridge *br, struct br_mrp_instance *instance); |
68 | int br_mrp_set_port_state(struct net_bridge_port *p, |
69 | enum br_mrp_port_state_type state); |
70 | int br_mrp_set_port_role(struct net_bridge_port *p, |
71 | enum br_mrp_port_role_type role); |
72 | int br_mrp_set_ring_state(struct net_bridge *br, |
73 | struct br_mrp_ring_state *state); |
74 | int br_mrp_set_ring_role(struct net_bridge *br, struct br_mrp_ring_role *role); |
75 | int br_mrp_start_test(struct net_bridge *br, struct br_mrp_start_test *test); |
76 | int br_mrp_set_in_state(struct net_bridge *br, struct br_mrp_in_state *state); |
77 | int br_mrp_set_in_role(struct net_bridge *br, struct br_mrp_in_role *role); |
78 | int br_mrp_start_in_test(struct net_bridge *br, |
79 | struct br_mrp_start_in_test *test); |
80 | |
81 | /* br_mrp_switchdev.c */ |
82 | int br_mrp_switchdev_add(struct net_bridge *br, struct br_mrp *mrp); |
83 | int br_mrp_switchdev_del(struct net_bridge *br, struct br_mrp *mrp); |
84 | enum br_mrp_hw_support |
85 | br_mrp_switchdev_set_ring_role(struct net_bridge *br, struct br_mrp *mrp, |
86 | enum br_mrp_ring_role_type role); |
87 | int br_mrp_switchdev_set_ring_state(struct net_bridge *br, struct br_mrp *mrp, |
88 | enum br_mrp_ring_state_type state); |
89 | enum br_mrp_hw_support |
90 | br_mrp_switchdev_send_ring_test(struct net_bridge *br, struct br_mrp *mrp, |
91 | u32 interval, u8 max_miss, u32 period, |
92 | bool monitor); |
93 | int br_mrp_port_switchdev_set_state(struct net_bridge_port *p, u32 state); |
94 | int br_mrp_port_switchdev_set_role(struct net_bridge_port *p, |
95 | enum br_mrp_port_role_type role); |
96 | enum br_mrp_hw_support |
97 | br_mrp_switchdev_set_in_role(struct net_bridge *br, struct br_mrp *mrp, |
98 | u16 in_id, u32 ring_id, |
99 | enum br_mrp_in_role_type role); |
100 | int br_mrp_switchdev_set_in_state(struct net_bridge *br, struct br_mrp *mrp, |
101 | enum br_mrp_in_state_type state); |
102 | enum br_mrp_hw_support |
103 | br_mrp_switchdev_send_in_test(struct net_bridge *br, struct br_mrp *mrp, |
104 | u32 interval, u8 max_miss, u32 period); |
105 | |
106 | /* br_mrp_netlink.c */ |
107 | int br_mrp_ring_port_open(struct net_device *dev, u8 loc); |
108 | int br_mrp_in_port_open(struct net_device *dev, u8 loc); |
109 | |
110 | /* MRP protocol data units */ |
111 | struct br_mrp_tlv_hdr { |
112 | __u8 type; |
113 | __u8 length; |
114 | }; |
115 | |
116 | struct br_mrp_common_hdr { |
117 | __be16 seq_id; |
118 | __u8 domain[MRP_DOMAIN_UUID_LENGTH]; |
119 | }; |
120 | |
121 | struct br_mrp_ring_test_hdr { |
122 | __be16 prio; |
123 | __u8 sa[ETH_ALEN]; |
124 | __be16 port_role; |
125 | __be16 state; |
126 | __be16 transitions; |
127 | __be32 timestamp; |
128 | } __attribute__((__packed__)); |
129 | |
130 | struct br_mrp_in_test_hdr { |
131 | __be16 id; |
132 | __u8 sa[ETH_ALEN]; |
133 | __be16 port_role; |
134 | __be16 state; |
135 | __be16 transitions; |
136 | __be32 timestamp; |
137 | } __attribute__((__packed__)); |
138 | |
139 | struct br_mrp_oui_hdr { |
140 | __u8 oui[MRP_OUI_LENGTH]; |
141 | }; |
142 | |
143 | struct br_mrp_sub_option1_hdr { |
144 | __u8 type; |
145 | __u8 data[MRP_MANUFACTURE_DATA_LENGTH]; |
146 | }; |
147 | |
148 | #endif /* _BR_PRIVATE_MRP_H */ |
149 | |