1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | |
3 | #ifndef _BR_PRIVATE_CFM_H_ |
4 | #define _BR_PRIVATE_CFM_H_ |
5 | |
6 | #include "br_private.h" |
7 | #include <uapi/linux/cfm_bridge.h> |
8 | |
9 | struct br_cfm_mep_create { |
10 | enum br_cfm_domain domain; /* Domain for this MEP */ |
11 | enum br_cfm_mep_direction direction; /* Up or Down MEP direction */ |
12 | u32 ifindex; /* Residence port */ |
13 | }; |
14 | |
15 | int br_cfm_mep_create(struct net_bridge *br, |
16 | const u32 instance, |
17 | struct br_cfm_mep_create *const create, |
18 | struct netlink_ext_ack *extack); |
19 | |
20 | int br_cfm_mep_delete(struct net_bridge *br, |
21 | const u32 instance, |
22 | struct netlink_ext_ack *extack); |
23 | |
24 | struct br_cfm_mep_config { |
25 | u32 mdlevel; |
26 | u32 mepid; /* MEPID for this MEP */ |
27 | struct mac_addr unicast_mac; /* The MEP unicast MAC */ |
28 | }; |
29 | |
30 | int br_cfm_mep_config_set(struct net_bridge *br, |
31 | const u32 instance, |
32 | const struct br_cfm_mep_config *const config, |
33 | struct netlink_ext_ack *extack); |
34 | |
35 | struct br_cfm_maid { |
36 | u8 data[CFM_MAID_LENGTH]; |
37 | }; |
38 | |
39 | struct br_cfm_cc_config { |
40 | /* Expected received CCM PDU MAID. */ |
41 | struct br_cfm_maid exp_maid; |
42 | |
43 | /* Expected received CCM PDU interval. */ |
44 | /* Transmitting CCM PDU interval when CCM tx is enabled. */ |
45 | enum br_cfm_ccm_interval exp_interval; |
46 | |
47 | bool enable; /* Enable/disable CCM PDU handling */ |
48 | }; |
49 | |
50 | int br_cfm_cc_config_set(struct net_bridge *br, |
51 | const u32 instance, |
52 | const struct br_cfm_cc_config *const config, |
53 | struct netlink_ext_ack *extack); |
54 | |
55 | int br_cfm_cc_peer_mep_add(struct net_bridge *br, const u32 instance, |
56 | u32 peer_mep_id, |
57 | struct netlink_ext_ack *extack); |
58 | int br_cfm_cc_peer_mep_remove(struct net_bridge *br, const u32 instance, |
59 | u32 peer_mep_id, |
60 | struct netlink_ext_ack *extack); |
61 | |
62 | /* Transmitted CCM Remote Defect Indication status set. |
63 | * This RDI is inserted in transmitted CCM PDUs if CCM transmission is enabled. |
64 | * See br_cfm_cc_ccm_tx() with interval != BR_CFM_CCM_INTERVAL_NONE |
65 | */ |
66 | int br_cfm_cc_rdi_set(struct net_bridge *br, const u32 instance, |
67 | const bool rdi, struct netlink_ext_ack *extack); |
68 | |
69 | /* OAM PDU Tx information */ |
70 | struct br_cfm_cc_ccm_tx_info { |
71 | struct mac_addr dmac; |
72 | /* The CCM will be transmitted for this period in seconds. |
73 | * Call br_cfm_cc_ccm_tx before timeout to keep transmission alive. |
74 | * When period is zero any ongoing transmission will be stopped. |
75 | */ |
76 | u32 period; |
77 | |
78 | bool seq_no_update; /* Update Tx CCM sequence number */ |
79 | bool if_tlv; /* Insert Interface Status TLV */ |
80 | u8 if_tlv_value; /* Interface Status TLV value */ |
81 | bool port_tlv; /* Insert Port Status TLV */ |
82 | u8 port_tlv_value; /* Port Status TLV value */ |
83 | /* Sender ID TLV ?? |
84 | * Organization-Specific TLV ?? |
85 | */ |
86 | }; |
87 | |
88 | int br_cfm_cc_ccm_tx(struct net_bridge *br, const u32 instance, |
89 | const struct br_cfm_cc_ccm_tx_info *const tx_info, |
90 | struct netlink_ext_ack *extack); |
91 | |
92 | struct br_cfm_mep_status { |
93 | /* Indications that an OAM PDU has been seen. */ |
94 | bool opcode_unexp_seen; /* RX of OAM PDU with unexpected opcode */ |
95 | bool version_unexp_seen; /* RX of OAM PDU with unexpected version */ |
96 | bool rx_level_low_seen; /* Rx of OAM PDU with level low */ |
97 | }; |
98 | |
99 | struct br_cfm_cc_peer_status { |
100 | /* This CCM related status is based on the latest received CCM PDU. */ |
101 | u8 port_tlv_value; /* Port Status TLV value */ |
102 | u8 if_tlv_value; /* Interface Status TLV value */ |
103 | |
104 | /* CCM has not been received for 3.25 intervals */ |
105 | u8 ccm_defect:1; |
106 | |
107 | /* (RDI == 1) for last received CCM PDU */ |
108 | u8 rdi:1; |
109 | |
110 | /* Indications that a CCM PDU has been seen. */ |
111 | u8 seen:1; /* CCM PDU received */ |
112 | u8 tlv_seen:1; /* CCM PDU with TLV received */ |
113 | /* CCM PDU with unexpected sequence number received */ |
114 | u8 seq_unexp_seen:1; |
115 | }; |
116 | |
117 | struct br_cfm_mep { |
118 | /* list header of MEP instances */ |
119 | struct hlist_node head; |
120 | u32 instance; |
121 | struct br_cfm_mep_create create; |
122 | struct br_cfm_mep_config config; |
123 | struct br_cfm_cc_config cc_config; |
124 | struct br_cfm_cc_ccm_tx_info cc_ccm_tx_info; |
125 | /* List of multiple peer MEPs */ |
126 | struct hlist_head peer_mep_list; |
127 | struct net_bridge_port __rcu *b_port; |
128 | unsigned long ccm_tx_end; |
129 | struct delayed_work ccm_tx_dwork; |
130 | u32 ccm_tx_snumber; |
131 | u32 ccm_rx_snumber; |
132 | struct br_cfm_mep_status status; |
133 | bool rdi; |
134 | struct rcu_head rcu; |
135 | }; |
136 | |
137 | struct br_cfm_peer_mep { |
138 | struct hlist_node head; |
139 | struct br_cfm_mep *mep; |
140 | struct delayed_work ccm_rx_dwork; |
141 | u32 mepid; |
142 | struct br_cfm_cc_peer_status cc_status; |
143 | u32 ccm_rx_count_miss; |
144 | struct rcu_head rcu; |
145 | }; |
146 | |
147 | #endif /* _BR_PRIVATE_CFM_H_ */ |
148 | |