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
29struct br_cfm_common_hdr {
30 __u8 mdlevel_version;
31 __u8 opcode;
32 __u8 flags;
33 __u8 tlv_offset;
34};
35
36enum br_cfm_opcodes {
37 BR_CFM_OPCODE_CCM = 0x1,
38};
39
40/* MEP domain */
41enum br_cfm_domain {
42 BR_CFM_PORT,
43 BR_CFM_VLAN,
44};
45
46/* MEP direction */
47enum br_cfm_mep_direction {
48 BR_CFM_MEP_DIRECTION_DOWN,
49 BR_CFM_MEP_DIRECTION_UP,
50};
51
52/* CCM interval supported. */
53enum 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

source code of linux/include/uapi/linux/cfm_bridge.h