130 lines
4.1 KiB
C
130 lines
4.1 KiB
C
/* $NetBSD: ieee8023ad_lacp_impl.h,v 1.5 2007/02/21 23:00:06 thorpej Exp $ */
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/*-
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* Copyright (c)2005 YAMAMOTO Takashi,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _NET_AGR_IEEE8023AD_LACP_IMPL_H_
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#define _NET_AGR_IEEE8023AD_LACP_IMPL_H_
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/*
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* IEEE802.3ad LACP
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*
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* implementation details.
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*/
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#include <sys/queue.h>
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#define LACP_TIMER_CURRENT_WHILE 0
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#define LACP_TIMER_PERIODIC 1
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#define LACP_TIMER_WAIT_WHILE 2
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#define LACP_NTIMER 3
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#define LACP_TIMER_ARM(port, timer, val) \
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(port)->lp_timer[(timer)] = (val)
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#define LACP_TIMER_DISARM(port, timer) \
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(port)->lp_timer[(timer)] = 0
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#define LACP_TIMER_ISARMED(port, timer) \
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((port)->lp_timer[(timer)] > 0)
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struct lacp_aggregator {
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TAILQ_ENTRY(lacp_aggregator) la_q;
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int la_refcnt; /* number of ports which selected us */
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int la_nports; /* number of distributing ports */
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TAILQ_HEAD(, lacp_port) la_ports; /* distributing ports */
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struct lacp_peerinfo la_partner;
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struct lacp_peerinfo la_actor;
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int la_pending; /* number of ports which is waiting wait_while */
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};
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struct lacp_softc {
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struct lacp_aggregator *lsc_active_aggregator;
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TAILQ_HEAD(, lacp_aggregator) lsc_aggregators;
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bool lsc_suppress_distributing;
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struct callout lsc_transit_callout;
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};
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#define LACP_TRANSIT_DELAY 1000 /* in msec */
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enum lacp_selected {
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LACP_UNSELECTED,
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LACP_STANDBY, /* not used in this implementation */
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LACP_SELECTED,
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};
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enum lacp_mux_state {
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LACP_MUX_DETACHED,
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LACP_MUX_WAITING,
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LACP_MUX_ATTACHED,
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LACP_MUX_COLLECTING,
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LACP_MUX_DISTRIBUTING,
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};
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struct lacp_port {
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TAILQ_ENTRY(lacp_port) lp_dist_q;
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struct agr_port *lp_agrport;
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struct lacp_peerinfo lp_partner;
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struct lacp_peerinfo lp_actor;
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#define lp_state lp_actor.lip_state
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#define lp_key lp_actor.lip_key
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int lp_last_lacpdu_sent;
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enum lacp_mux_state lp_mux_state;
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enum lacp_selected lp_selected;
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int lp_flags;
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u_int lp_media; /* XXX redundant */
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int lp_timer[LACP_NTIMER];
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struct lacp_aggregator *lp_aggregator;
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};
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#define LACPPORT_NTT 1 /* need to transmit */
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#define LACP_SOFTC(sc) \
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(&IEEE8023AD_SOFTC(sc)->isc_lacpsc)
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#define LACP_PORT(port) \
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(&IEEE8023AD_PORT(port)->iport_lacpport)
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void lacp_run_timers(struct lacp_port *);
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void lacp_portinit(struct agr_port *);
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void lacp_portfini(struct agr_port *);
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int lacp_compare_peerinfo(const struct lacp_peerinfo *,
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const struct lacp_peerinfo *);
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int lacp_compare_systemid(const struct lacp_systemid *,
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const struct lacp_systemid *);
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int lacp_compare_portid(const struct lacp_portid *,
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const struct lacp_portid *);
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void lacp_select(struct lacp_port *);
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void lacp_unselect(struct lacp_port *);
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void lacp_disable_collecting(struct lacp_port *);
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void lacp_enable_collecting(struct lacp_port *);
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void lacp_disable_distributing(struct lacp_port *);
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void lacp_enable_distributing(struct lacp_port *);
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int lacp_xmit_lacpdu(struct lacp_port *);
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#endif /* !_NET_AGR_IEEE8023AD_LACP_IMPL_H_ */
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