1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2
3 #ifndef _UAPI_LINUX_CFM_BRIDGE_H_
4 #define _UAPI_LINUX_CFM_BRIDGE_H_
5
6 #include <linux/types.h>
7 #include <linux/if_ether.h>
8
9 #define ETHER_HEADER_LENGTH (6+6+4+2)
10 #define CFM_MAID_LENGTH 48
11 #define CFM_CCM_PDU_LENGTH 75
12 #define CFM_PORT_STATUS_TLV_LENGTH 4
13 #define CFM_IF_STATUS_TLV_LENGTH 4
14 #define CFM_IF_STATUS_TLV_TYPE 4
15 #define CFM_PORT_STATUS_TLV_TYPE 2
16 #define CFM_ENDE_TLV_TYPE 0
17 #define CFM_CCM_MAX_FRAME_LENGTH (ETHER_HEADER_LENGTH+\
18 CFM_CCM_PDU_LENGTH+\
19 CFM_PORT_STATUS_TLV_LENGTH+\
20 CFM_IF_STATUS_TLV_LENGTH)
21 #define CFM_FRAME_PRIO 7
22 #define CFM_CCM_TLV_OFFSET 70
23 #define CFM_CCM_PDU_MAID_OFFSET 10
24 #define CFM_CCM_PDU_MEPID_OFFSET 8
25 #define CFM_CCM_PDU_SEQNR_OFFSET 4
26 #define CFM_CCM_PDU_TLV_OFFSET 74
27 #define CFM_CCM_ITU_RESERVED_SIZE 16
28
29 struct br_cfm_common_hdr {
30 __u8 mdlevel_version;
31 __u8 opcode;
32 __u8 flags;
33 __u8 tlv_offset;
34 };
35
36 enum br_cfm_opcodes {
37 BR_CFM_OPCODE_CCM = 0x1,
38 };
39
40 /* MEP domain */
41 enum br_cfm_domain {
42 BR_CFM_PORT,
43 BR_CFM_VLAN,
44 };
45
46 /* MEP direction */
47 enum br_cfm_mep_direction {
48 BR_CFM_MEP_DIRECTION_DOWN,
49 BR_CFM_MEP_DIRECTION_UP,
50 };
51
52 /* CCM interval supported. */
53 enum br_cfm_ccm_interval {
54 BR_CFM_CCM_INTERVAL_NONE,
55 BR_CFM_CCM_INTERVAL_3_3_MS,
56 BR_CFM_CCM_INTERVAL_10_MS,
57 BR_CFM_CCM_INTERVAL_100_MS,
58 BR_CFM_CCM_INTERVAL_1_SEC,
59 BR_CFM_CCM_INTERVAL_10_SEC,
60 BR_CFM_CCM_INTERVAL_1_MIN,
61 BR_CFM_CCM_INTERVAL_10_MIN,
62 };
63
64 #endif
65
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