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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_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)
37 enum cfm_fault_bit_index
{
38 #define CFM_FAULT_REASON(NAME, STR) CFM_FAULT_INDEX_##NAME,
40 #undef CFM_FAULT_REASON
44 enum cfm_fault_reason
{
45 #define CFM_FAULT_REASON(NAME, STR) \
46 CFM_FAULT_##NAME = 1 << CFM_FAULT_INDEX_##NAME,
48 #undef CFM_FAULT_REASON
52 uint64_t mpid
; /* The MPID of this CFM. */
53 int interval
; /* The requested transmission interval. */
54 bool extended
; /* Run in extended mode. */
55 bool opup
; /* Operational State. */
56 uint16_t ccm_vlan
; /* CCM Vlan tag. Zero if none.
57 CFM_RANDOM_VLAN if random. */
58 uint8_t ccm_pcp
; /* CCM Priority. Zero if none. */
62 struct cfm
*cfm_create(const char *name
);
63 void cfm_destroy(struct cfm
*);
64 void cfm_run(struct cfm
*);
65 bool cfm_should_send_ccm(struct cfm
*);
66 void cfm_compose_ccm(struct cfm
*, struct ofpbuf
*packet
, uint8_t eth_src
[6]);
67 void cfm_wait(struct cfm
*);
68 bool cfm_configure(struct cfm
*, const struct cfm_settings
*);
69 bool cfm_should_process_flow(const struct cfm
*cfm
, const struct flow
*);
70 void cfm_process_heartbeat(struct cfm
*, const struct ofpbuf
*packet
);
71 int cfm_get_fault(const struct cfm
*);
72 bool cfm_get_opup(const struct cfm
*);
73 void cfm_get_remote_mpids(const struct cfm
*, const uint64_t **rmps
,
75 const char *cfm_fault_reason_to_str(int fault
);