/usr/src/openvswitch-1.4.0/lib/bond.h is in openvswitch-datapath-dkms 1.4.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | /*
* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef BOND_H
#define BOND_H 1
#include <stdbool.h>
#include <stdint.h>
#include "packets.h"
#include "tag.h"
struct flow;
struct netdev;
struct ofpbuf;
/* How flows are balanced among bond slaves. */
enum bond_mode {
BM_TCP, /* Transport Layer Load Balance. */
BM_SLB, /* Source Load Balance. */
BM_STABLE, /* Stable. */
BM_AB /* Active Backup. */
};
bool bond_mode_from_string(enum bond_mode *, const char *);
const char *bond_mode_to_string(enum bond_mode);
/* Configuration for a bond as a whole. */
struct bond_settings {
char *name; /* Bond's name, for log messages. */
uint32_t basis; /* Flow hashing basis. */
/* Balancing configuration. */
enum bond_mode balance;
int rebalance_interval; /* Milliseconds between rebalances. */
/* Link status detection. */
int up_delay; /* ms before enabling an up slave. */
int down_delay; /* ms before disabling a down slave. */
/* Legacy compatibility. */
bool fake_iface; /* Update fake stats for netdev 'name'? */
};
/* Program startup. */
void bond_init(void);
/* Basics. */
struct bond *bond_create(const struct bond_settings *);
void bond_destroy(struct bond *);
bool bond_reconfigure(struct bond *, const struct bond_settings *);
void bond_slave_register(struct bond *, void *slave_,
uint32_t stable_id, struct netdev *);
void bond_slave_set_netdev(struct bond *, void *slave_, struct netdev *);
void bond_slave_unregister(struct bond *, const void *slave);
void bond_run(struct bond *, struct tag_set *, bool lacp_negotiated);
void bond_wait(struct bond *);
void bond_slave_set_may_enable(struct bond *, void *slave_, bool may_enable);
/* Special MAC learning support for SLB bonding. */
bool bond_should_send_learning_packets(struct bond *);
struct ofpbuf *bond_compose_learning_packet(struct bond *,
const uint8_t eth_src[ETH_ADDR_LEN],
uint16_t vlan, void **port_aux);
/* Packet processing. */
enum bond_verdict {
BV_ACCEPT, /* Accept this packet. */
BV_DROP, /* Drop this packet. */
BV_DROP_IF_MOVED /* Drop if we've learned a different port. */
};
enum bond_verdict bond_check_admissibility(struct bond *, const void *slave_,
const uint8_t eth_dst[ETH_ADDR_LEN],
tag_type *);
void *bond_choose_output_slave(struct bond *,
const struct flow *, uint16_t vlan, tag_type *);
/* Rebalancing. */
void bond_account(struct bond *, const struct flow *, uint16_t vlan,
uint64_t n_bytes);
void bond_rebalance(struct bond *, struct tag_set *);
#endif /* bond.h */
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