111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
/* $NetBSD: ieee8023ad_lacp_sm_ptx.c,v 1.3 2005/12/11 12:24:54 christos 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ieee8023ad_lacp_sm_ptx.c,v 1.3 2005/12/11 12:24:54 christos Exp $");
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#include <sys/param.h>
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#include <sys/callout.h>
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#include <sys/mbuf.h>
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#include <sys/systm.h>
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#include <net/if.h>
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#include <net/if_ether.h>
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#include <net/agr/ieee8023_slowprotocols.h>
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#include <net/agr/ieee8023_tlv.h>
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#include <net/agr/ieee8023ad_lacp.h>
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#include <net/agr/ieee8023ad_lacp_impl.h>
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#include <net/agr/ieee8023ad_lacp_sm.h>
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#include <net/agr/ieee8023ad_lacp_debug.h>
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/* periodic transmit machine */
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void
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lacp_sm_ptx_update_timeout(struct lacp_port *lp, uint8_t oldpstate)
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{
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if (LACP_STATE_EQ(oldpstate, lp->lp_partner.lip_state,
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LACP_STATE_TIMEOUT)) {
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return;
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}
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LACP_DPRINTF((lp, "partner timeout changed\n"));
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/*
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* FAST_PERIODIC -> SLOW_PERIODIC
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* or
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* SLOW_PERIODIC (-> PERIODIC_TX) -> FAST_PERIODIC
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*
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* let lacp_sm_ptx_tx_schedule to update timeout.
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*/
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LACP_TIMER_DISARM(lp, LACP_TIMER_PERIODIC);
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/*
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* if timeout has been shortened, assert NTT.
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*/
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if ((lp->lp_partner.lip_state & LACP_STATE_TIMEOUT)) {
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lacp_sm_assert_ntt(lp);
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}
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}
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void
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lacp_sm_ptx_tx_schedule(struct lacp_port *lp)
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{
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int timeout;
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if (!(lp->lp_state & LACP_STATE_ACTIVITY) &&
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!(lp->lp_partner.lip_state & LACP_STATE_ACTIVITY)) {
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/*
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* NO_PERIODIC
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*/
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LACP_TIMER_DISARM(lp, LACP_TIMER_PERIODIC);
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return;
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}
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if (LACP_TIMER_ISARMED(lp, LACP_TIMER_PERIODIC)) {
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return;
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}
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timeout = (lp->lp_partner.lip_state & LACP_STATE_TIMEOUT) ?
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LACP_FAST_PERIODIC_TIME : LACP_SLOW_PERIODIC_TIME;
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LACP_TIMER_ARM(lp, LACP_TIMER_PERIODIC, timeout);
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}
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void
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lacp_sm_ptx_timer(struct lacp_port *lp)
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{
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lacp_sm_assert_ntt(lp);
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}
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