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https://github.com/openvswitch/ovs
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df53d41c6d
Stable bond mode, along with autopath, were trying to implement functionality close to what we get from the bundle action. Unfortunately, they are quite clunky, and generally less useful than bundle, so they're being removed. Signed-off-by: Ethan Jackson <ethan@nicira.com>
100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
/*
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* Copyright (c) 2008, 2009, 2010, 2011 Nicira, Inc.
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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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enum lacp_status;
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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_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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Zero to disable rebalancing. */
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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_, 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 *, enum lacp_status);
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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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struct ofpbuf *bond_compose_learning_packet(struct bond *,
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const uint8_t eth_src[ETH_ADDR_LEN],
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uint16_t vlan, void **port_aux);
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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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