mirror of
https://github.com/openvswitch/ovs
synced 2025-10-25 15:07:05 +00:00
f620b43af1
This removes over 1000 lines of code from bridge.c and will make it easier to moving the bonding implementation into ofproto as part of future development.
112 lines
3.7 KiB
C
112 lines
3.7 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 lacp_slave_settings;
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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_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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/* How to detect link status. */
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enum bond_detect_mode {
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BLSM_CARRIER, /* Use carrier. */
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BLSM_MIIMON /* Poll MII status. */
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};
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bool bond_detect_mode_from_string(enum bond_detect_mode *, const char *);
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const char *bond_detect_mode_to_string(enum bond_detect_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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/* 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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enum bond_detect_mode detect; /* BLSM_CARRIER or BLSM_MIIMON. */
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int miimon_interval; /* Used only for BLSM_MIIMON. */
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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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/* LACP. */
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struct lacp_settings *lacp; /* NULL to disable LACP. */
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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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void 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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const struct lacp_slave_settings *);
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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 *);
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void bond_wait(struct bond *);
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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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void bond_process_lacp(struct bond *, void *slave,
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const struct ofpbuf *packet);
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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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