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This is the third commit of the implementation of the CFM protocol according to 802.1Q section 12.14. Functionality is extended with CCM frame reception. The MEP instance now contains CCM based status information. Most important is the CCM defect status indicating if correct CCM frames are received with the expected interval. Signed-off-by: Henrik Bjoernlund <henrik.bjoernlund@microchip.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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#ifndef _UAPI_LINUX_CFM_BRIDGE_H_
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#define _UAPI_LINUX_CFM_BRIDGE_H_
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#include <linux/types.h>
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#include <linux/if_ether.h>
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#define ETHER_HEADER_LENGTH (6+6+4+2)
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#define CFM_MAID_LENGTH 48
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#define CFM_CCM_PDU_LENGTH 75
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#define CFM_PORT_STATUS_TLV_LENGTH 4
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#define CFM_IF_STATUS_TLV_LENGTH 4
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#define CFM_IF_STATUS_TLV_TYPE 4
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#define CFM_PORT_STATUS_TLV_TYPE 2
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#define CFM_ENDE_TLV_TYPE 0
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#define CFM_CCM_MAX_FRAME_LENGTH (ETHER_HEADER_LENGTH+\
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CFM_CCM_PDU_LENGTH+\
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CFM_PORT_STATUS_TLV_LENGTH+\
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CFM_IF_STATUS_TLV_LENGTH)
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#define CFM_FRAME_PRIO 7
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#define CFM_CCM_TLV_OFFSET 70
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#define CFM_CCM_PDU_MAID_OFFSET 10
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#define CFM_CCM_PDU_MEPID_OFFSET 8
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#define CFM_CCM_PDU_SEQNR_OFFSET 4
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#define CFM_CCM_PDU_TLV_OFFSET 74
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#define CFM_CCM_ITU_RESERVED_SIZE 16
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struct br_cfm_common_hdr {
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__u8 mdlevel_version;
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__u8 opcode;
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__u8 flags;
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__u8 tlv_offset;
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};
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enum br_cfm_opcodes {
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BR_CFM_OPCODE_CCM = 0x1,
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};
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/* MEP domain */
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enum br_cfm_domain {
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BR_CFM_PORT,
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BR_CFM_VLAN,
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};
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/* MEP direction */
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enum br_cfm_mep_direction {
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BR_CFM_MEP_DIRECTION_DOWN,
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BR_CFM_MEP_DIRECTION_UP,
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};
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/* CCM interval supported. */
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enum br_cfm_ccm_interval {
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BR_CFM_CCM_INTERVAL_NONE,
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BR_CFM_CCM_INTERVAL_3_3_MS,
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BR_CFM_CCM_INTERVAL_10_MS,
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BR_CFM_CCM_INTERVAL_100_MS,
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BR_CFM_CCM_INTERVAL_1_SEC,
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BR_CFM_CCM_INTERVAL_10_SEC,
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BR_CFM_CCM_INTERVAL_1_MIN,
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BR_CFM_CCM_INTERVAL_10_MIN,
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};
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#endif
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