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