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/* $NetBSD: if_agrtimer.c,v 1.7 2017/01/28 22:56:09 maya 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: if_agrtimer.c,v 1.7 2017/01/28 22:56:09 maya Exp $");
#include <sys/param.h>
#include <sys/callout.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <net/if.h>
#include <net/agr/if_agrvar_impl.h>
#include <net/agr/if_agrsubr.h>
static void agrtimer_tick(void *);
static void agrtimer_work(struct work *, void *);
static int agrtimer_port_tick(struct agr_port *, void *);
int
agrtimer_init(struct agr_softc *sc)
{
int error;
error = workqueue_create(&sc->sc_wq, "agrmon",
agrtimer_work, sc, PRI_SOFTNET, IPL_SOFTNET, 0);
if (error)
return error;
callout_init(&sc->sc_callout, 0);
callout_setfunc(&sc->sc_callout, agrtimer_tick, sc);
return 0;
}
void
agrtimer_destroy(struct agr_softc *sc)
{
callout_destroy(&sc->sc_callout);
workqueue_destroy(sc->sc_wq);
}
void
agrtimer_start(struct agr_softc *sc)
{
callout_schedule(&sc->sc_callout, 0);
}
void
agrtimer_stop(struct agr_softc *sc)
{
callout_stop(&sc->sc_callout);
}
static void
agrtimer_tick(void *arg)
{
struct agr_softc *sc = arg;
workqueue_enqueue(sc->sc_wq, &sc->sc_wk, NULL);
}
static void
agrtimer_work(struct work *wk, void *arg)
{
struct agr_softc *sc = arg;
const struct agr_iftype_ops *iftop = sc->sc_iftop;
KASSERT(iftop);
AGR_LOCK(sc);
if (iftop->iftop_tick) {
(*iftop->iftop_tick)(sc);
}
if (iftop->iftop_porttick) {
agr_port_foreach(sc, agrtimer_port_tick, sc);
}
callout_schedule(&sc->sc_callout, hz);
AGR_UNLOCK(sc);
}
static int
agrtimer_port_tick(struct agr_port *port, void *arg)
{
struct agr_softc *sc = arg;
agrport_monitor(port);
(*sc->sc_iftop->iftop_porttick)(sc, port);
return 0;
}
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