| 1 | /* $NetBSD: if_agrtimer.c,v 1.6 2010/02/08 17:59:06 dyoung Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c)2005 YAMAMOTO Takashi, |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 26 | * SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <sys/cdefs.h> |
| 30 | __KERNEL_RCSID(0, "$NetBSD: if_agrtimer.c,v 1.6 2010/02/08 17:59:06 dyoung Exp $" ); |
| 31 | |
| 32 | #include <sys/param.h> |
| 33 | #include <sys/callout.h> |
| 34 | #include <sys/systm.h> |
| 35 | #include <sys/kernel.h> |
| 36 | |
| 37 | #include <net/if.h> |
| 38 | |
| 39 | #include <net/agr/if_agrvar_impl.h> |
| 40 | #include <net/agr/if_agrsubr.h> |
| 41 | |
| 42 | static void agrtimer_tick(void *); |
| 43 | static int agrtimer_port_tick(struct agr_port *, void *); |
| 44 | |
| 45 | void |
| 46 | agrtimer_init(struct agr_softc *sc) |
| 47 | { |
| 48 | |
| 49 | callout_init(&sc->sc_callout, 0); |
| 50 | callout_setfunc(&sc->sc_callout, agrtimer_tick, sc); |
| 51 | } |
| 52 | |
| 53 | void |
| 54 | agrtimer_destroy(struct agr_softc *sc) |
| 55 | { |
| 56 | |
| 57 | callout_destroy(&sc->sc_callout); |
| 58 | } |
| 59 | |
| 60 | void |
| 61 | agrtimer_start(struct agr_softc *sc) |
| 62 | { |
| 63 | |
| 64 | callout_schedule(&sc->sc_callout, 0); |
| 65 | } |
| 66 | |
| 67 | void |
| 68 | agrtimer_stop(struct agr_softc *sc) |
| 69 | { |
| 70 | |
| 71 | callout_stop(&sc->sc_callout); |
| 72 | } |
| 73 | |
| 74 | static void |
| 75 | agrtimer_tick(void *arg) |
| 76 | { |
| 77 | struct agr_softc *sc = arg; |
| 78 | const struct agr_iftype_ops *iftop = sc->sc_iftop; |
| 79 | |
| 80 | KASSERT(iftop); |
| 81 | |
| 82 | AGR_LOCK(sc); |
| 83 | if (iftop->iftop_tick) { |
| 84 | (*iftop->iftop_tick)(sc); |
| 85 | } |
| 86 | if (iftop->iftop_porttick) { |
| 87 | agr_port_foreach(sc, agrtimer_port_tick, sc); |
| 88 | } |
| 89 | callout_schedule(&sc->sc_callout, hz); |
| 90 | AGR_UNLOCK(sc); |
| 91 | } |
| 92 | |
| 93 | static int |
| 94 | agrtimer_port_tick(struct agr_port *port, void *arg) |
| 95 | { |
| 96 | struct agr_softc *sc = arg; |
| 97 | |
| 98 | agrport_monitor(port); |
| 99 | (*sc->sc_iftop->iftop_porttick)(sc, port); |
| 100 | |
| 101 | return 0; |
| 102 | } |
| 103 | |