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1 /* Copyright (c) 2010, 2011 Nicira, Inc.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
22 #include "openvswitch/types.h"
27 #define CFM_RANDOM_VLAN UINT16_MAX
29 #define CFM_FAULT_REASONS \
30 CFM_FAULT_REASON(RECV, recv) \
31 CFM_FAULT_REASON(RDI, rdi) \
32 CFM_FAULT_REASON(MAID, maid) \
33 CFM_FAULT_REASON(LOOPBACK, loopback) \
34 CFM_FAULT_REASON(OVERFLOW, overflow) \
35 CFM_FAULT_REASON(OVERRIDE, override) \
36 CFM_FAULT_REASON(INTERVAL, interval)
38 enum cfm_fault_bit_index
{
39 #define CFM_FAULT_REASON(NAME, STR) CFM_FAULT_INDEX_##NAME,
41 #undef CFM_FAULT_REASON
45 enum cfm_fault_reason
{
46 #define CFM_FAULT_REASON(NAME, STR) \
47 CFM_FAULT_##NAME = 1 << CFM_FAULT_INDEX_##NAME,
49 #undef CFM_FAULT_REASON
53 uint64_t mpid
; /* The MPID of this CFM. */
54 int interval
; /* The requested transmission interval. */
55 bool extended
; /* Run in extended mode. */
56 bool opup
; /* Operational State. */
57 uint16_t ccm_vlan
; /* CCM Vlan tag. Zero if none.
58 CFM_RANDOM_VLAN if random. */
59 uint8_t ccm_pcp
; /* CCM Priority. Zero if none. */
63 struct cfm
*cfm_create(const char *name
);
64 void cfm_destroy(struct cfm
*);
65 void cfm_run(struct cfm
*);
66 bool cfm_should_send_ccm(struct cfm
*);
67 void cfm_compose_ccm(struct cfm
*, struct ofpbuf
*packet
, uint8_t eth_src
[6]);
68 void cfm_wait(struct cfm
*);
69 bool cfm_configure(struct cfm
*, const struct cfm_settings
*);
70 bool cfm_should_process_flow(const struct cfm
*cfm
, const struct flow
*);
71 void cfm_process_heartbeat(struct cfm
*, const struct ofpbuf
*packet
);
72 int cfm_get_fault(const struct cfm
*);
73 int cfm_get_health(const struct cfm
*);
74 int cfm_get_opup(const struct cfm
*);
75 void cfm_get_remote_mpids(const struct cfm
*, const uint64_t **rmps
,
77 const char *cfm_fault_reason_to_str(int fault
);