/*      $NetBSD: ieee8023ad_lacp_timer.c,v 1.6 2021/11/30 01:17:02 yamaguchi Exp $      */

/*-
* Copyright (c)2005 YAMAMOTO Takashi,
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ieee8023ad_lacp_timer.c,v 1.6 2021/11/30 01:17:02 yamaguchi Exp $");

#include <sys/param.h>
#include <sys/callout.h>
#include <sys/systm.h>

#include <net/if.h>
#include <net/if_ether.h>
#include <net/ether_slowprotocols.h>

#include <net/agr/ieee8023_tlv.h>
#include <net/agr/ieee8023ad_lacp.h>
#include <net/agr/ieee8023ad_lacp_impl.h>
#include <net/agr/ieee8023ad_lacp_sm.h>

typedef void (*lacp_timer_func_t)(struct lacp_port *);

static const lacp_timer_func_t lacp_timer_funcs[LACP_NTIMER] = {
       [LACP_TIMER_CURRENT_WHILE] = lacp_sm_rx_timer,
       [LACP_TIMER_PERIODIC] = lacp_sm_ptx_timer,
       [LACP_TIMER_WAIT_WHILE] = lacp_sm_mux_timer,
};

void
lacp_run_timers(struct lacp_port *lp)
{
       int i;

       for (i = 0; i < LACP_NTIMER; i++) {
               KASSERT(lp->lp_timer[i] >= 0);
               if (lp->lp_timer[i] == 0) {
                       continue;
               } else if (--lp->lp_timer[i] <= 0) {
                       if (lacp_timer_funcs[i]) {
                               (*lacp_timer_funcs[i])(lp);
                       }
               }
       }
}