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/*
* Copyright (c) 2011 Nicira, Inc.
*
* 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 LACP_H
#define LACP_H 1
#include <stdbool.h>
#include <stdint.h>
#include "packets.h"
/* LACP Protocol Implementation. */
enum lacp_status {
LACP_NEGOTIATED, /* Successful LACP negotiations. */
LACP_CONFIGURED, /* LACP is enabled but not negotiated. */
LACP_DISABLED /* LACP is not enabled. */
};
struct lacp_settings {
char *name; /* Name (for debugging). */
struct eth_addr id; /* System ID. Must be nonzero. */
uint16_t priority; /* System priority. */
bool active; /* Active or passive mode? */
bool fast; /* Fast or slow probe interval. */
bool fallback_ab_cfg; /* Fallback to BM_SLB on LACP failure. */
};
void lacp_init(void);
struct lacp *lacp_create(void);
void lacp_unref(struct lacp *);
struct lacp *lacp_ref(const struct lacp *);
void lacp_configure(struct lacp *, const struct lacp_settings *);
bool lacp_is_active(const struct lacp *);
bool lacp_process_packet(struct lacp *, const void *member,
const struct dp_packet *packet);
enum lacp_status lacp_status(const struct lacp *);
const char *lacp_status_description(enum lacp_status);
struct lacp_member_settings {
char *name; /* Name (for debugging). */
uint16_t id; /* Port ID. */
uint16_t priority; /* Port priority. */
uint16_t key; /* Aggregation key. */
};
void lacp_member_register(struct lacp *, void *member_,
const struct lacp_member_settings *);
void lacp_member_unregister(struct lacp *, const void *member);
void lacp_member_carrier_changed(const struct lacp *, const void *member,
bool carrier_up);
bool lacp_member_may_enable(const struct lacp *, const void *member);
bool lacp_member_is_current(const struct lacp *, const void *member_);
/* Callback function for lacp_run() for sending a LACP PDU. */
typedef void lacp_send_pdu(void *member, const void *pdu, size_t pdu_size);
void lacp_run(struct lacp *, lacp_send_pdu *);
void lacp_wait(struct lacp *);
struct lacp_member_stats {
/* id */
struct eth_addr dot3adAggPortActorSystemID;
struct eth_addr dot3adAggPortPartnerOperSystemID;
uint32_t dot3adAggPortAttachedAggID;
/* state */
uint8_t dot3adAggPortActorAdminState;
uint8_t dot3adAggPortActorOperState;
uint8_t dot3adAggPortPartnerAdminState;
uint8_t dot3adAggPortPartnerOperState;
/* counters */
uint32_t dot3adAggPortStatsLACPDUsRx;
/* uint32_t dot3adAggPortStatsMarkerPDUsRx; */
/* uint32_t dot3adAggPortStatsMarkerResponsePDUsRx; */
/* uint32_t dot3adAggPortStatsUnknownRx; */
uint32_t dot3adAggPortStatsIllegalRx;
uint32_t dot3adAggPortStatsLACPDUsTx;
/* uint32_t dot3adAggPortStatsMarkerPDUsTx; */
/* uint32_t dot3adAggPortStatsMarkerResponsePDUsTx; */
};
bool lacp_get_member_stats(const struct lacp *, const void *member_,
struct lacp_member_stats *);
#endif /* lacp.h */
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