1 /* Copyright (c) 2010, 2011 Nicira Networks.
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_FAULT_REASONS \
28 CFM_FAULT_REASON(RECV, recv) \
29 CFM_FAULT_REASON(RDI, rdi) \
30 CFM_FAULT_REASON(MAID, maid) \
31 CFM_FAULT_REASON(LOOPBACK, loopback) \
32 CFM_FAULT_REASON(OVERFLOW, overflow) \
33 CFM_FAULT_REASON(OVERRIDE, override)
35 enum cfm_fault_bit_index {
36 #define CFM_FAULT_REASON(NAME, STR) CFM_FAULT_INDEX_##NAME,
38 #undef CFM_FAULT_REASON
42 enum cfm_fault_reason {
43 #define CFM_FAULT_REASON(NAME, STR) \
44 CFM_FAULT_##NAME = 1 << CFM_FAULT_INDEX_##NAME,
46 #undef CFM_FAULT_REASON
50 uint64_t mpid; /* The MPID of this CFM. */
51 int interval; /* The requested transmission interval. */
52 bool extended; /* Run in extended mode. */
53 bool opup; /* Operational State. */
54 uint16_t ccm_vlan; /* CCM Vlan tag. Zero if none. */
55 uint8_t ccm_pcp; /* CCM Priority. Zero if none. */
59 struct cfm *cfm_create(const char *name);
60 void cfm_destroy(struct cfm *);
61 void cfm_run(struct cfm *);
62 bool cfm_should_send_ccm(struct cfm *);
63 void cfm_compose_ccm(struct cfm *, struct ofpbuf *packet, uint8_t eth_src[6]);
64 void cfm_wait(struct cfm *);
65 bool cfm_configure(struct cfm *, const struct cfm_settings *);
66 bool cfm_should_process_flow(const struct cfm *cfm, const struct flow *);
67 void cfm_process_heartbeat(struct cfm *, const struct ofpbuf *packet);
68 int cfm_get_fault(const struct cfm *);
69 bool cfm_get_opup(const struct cfm *);
70 void cfm_get_remote_mpids(const struct cfm *, const uint64_t **rmps,
72 const char *cfm_fault_reason_to_str(int fault);