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https://github.com/openvswitch/ovs
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296f651909
With this patch, if CFM is configured on a slave, and in a faulted state, it will be disabled by the bond module.
100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/*
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* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef BOND_H
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#define BOND_H 1
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#include <stdbool.h>
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#include <stdint.h>
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#include "packets.h"
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#include "tag.h"
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struct flow;
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struct netdev;
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struct ofpbuf;
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/* How flows are balanced among bond slaves. */
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enum bond_mode {
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BM_TCP, /* Transport Layer Load Balance. */
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BM_SLB, /* Source Load Balance. */
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BM_STABLE, /* Stable. */
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BM_AB /* Active Backup. */
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};
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bool bond_mode_from_string(enum bond_mode *, const char *);
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const char *bond_mode_to_string(enum bond_mode);
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/* Configuration for a bond as a whole. */
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struct bond_settings {
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char *name; /* Bond's name, for log messages. */
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uint32_t basis; /* Flow hashing basis. */
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/* Balancing configuration. */
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enum bond_mode balance;
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int rebalance_interval; /* Milliseconds between rebalances. */
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/* Link status detection. */
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int up_delay; /* ms before enabling an up slave. */
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int down_delay; /* ms before disabling a down slave. */
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/* Legacy compatibility. */
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bool fake_iface; /* Update fake stats for netdev 'name'? */
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};
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/* Program startup. */
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void bond_init(void);
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/* Basics. */
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struct bond *bond_create(const struct bond_settings *);
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void bond_destroy(struct bond *);
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bool bond_reconfigure(struct bond *, const struct bond_settings *);
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void bond_slave_register(struct bond *, void *slave_,
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uint32_t stable_id, struct netdev *);
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void bond_slave_set_netdev(struct bond *, void *slave_, struct netdev *);
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void bond_slave_unregister(struct bond *, const void *slave);
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void bond_run(struct bond *, struct tag_set *, bool lacp_negotiated);
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void bond_wait(struct bond *);
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void bond_slave_set_may_enable(struct bond *, void *slave_, bool may_enable);
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/* Special MAC learning support for SLB bonding. */
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bool bond_should_send_learning_packets(struct bond *);
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int bond_send_learning_packet(struct bond *,
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const uint8_t eth_src[ETH_ADDR_LEN],
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uint16_t vlan);
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/* Packet processing. */
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enum bond_verdict {
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BV_ACCEPT, /* Accept this packet. */
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BV_DROP, /* Drop this packet. */
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BV_DROP_IF_MOVED /* Drop if we've learned a different port. */
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};
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enum bond_verdict bond_check_admissibility(struct bond *, const void *slave_,
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const uint8_t eth_dst[ETH_ADDR_LEN],
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tag_type *);
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void *bond_choose_output_slave(struct bond *,
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const struct flow *, uint16_t vlan, tag_type *);
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/* Rebalancing. */
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void bond_account(struct bond *, const struct flow *, uint16_t vlan,
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uint64_t n_bytes);
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void bond_rebalance(struct bond *, struct tag_set *);
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#endif /* bond.h */
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