| 1 | /* $NetBSD: if_agrmonitor.c,v 1.4 2008/03/24 09:14:52 yamt 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_agrmonitor.c,v 1.4 2008/03/24 09:14:52 yamt Exp $" ); |
| 31 | |
| 32 | #include <sys/param.h> |
| 33 | #include <sys/callout.h> |
| 34 | #include <sys/systm.h> |
| 35 | |
| 36 | #include <net/if.h> |
| 37 | #include <net/if_media.h> |
| 38 | |
| 39 | #include <net/agr/if_agrvar_impl.h> |
| 40 | #include <net/agr/if_agrsubr.h> |
| 41 | |
| 42 | void |
| 43 | agrport_monitor(struct agr_port *port) |
| 44 | { |
| 45 | struct agr_softc *sc = AGR_SC_FROM_PORT(port); |
| 46 | u_int media; |
| 47 | u_int status; |
| 48 | |
| 49 | /* |
| 50 | * XXX XXX |
| 51 | * assuming that it's safe to use SIOCGIFMEDIA from callout handler. |
| 52 | * maybe it's better to have a worker thread. |
| 53 | */ |
| 54 | |
| 55 | media = IFM_ETHER | IFM_NONE; |
| 56 | status = IFM_AVALID; |
| 57 | if ((~port->port_ifp->if_flags & (IFF_RUNNING | IFF_UP)) |
| 58 | == 0) { |
| 59 | int error; |
| 60 | |
| 61 | error = agr_port_getmedia(port, &media, &status); |
| 62 | if (error) { |
| 63 | #if defined(DEBUG) |
| 64 | printf("getmedia: error %d\n" , error); |
| 65 | #endif /* defined(DEBUG) */ |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | if ((status & (IFM_AVALID | IFM_ACTIVE)) == IFM_AVALID) { |
| 70 | media = IFM_ETHER | IFM_NONE; /* XXX ether */ |
| 71 | } |
| 72 | |
| 73 | if (media == IFM_NONE) { |
| 74 | /* |
| 75 | * possible eg. when the phy is not configured. |
| 76 | */ |
| 77 | #if defined(DEBUG) |
| 78 | printf("%s: IFM_NONE\n" , __func__); |
| 79 | #endif /* defined(DEBUG) */ |
| 80 | media = IFM_ETHER | IFM_NONE; /* XXX ether */ |
| 81 | } |
| 82 | |
| 83 | if (port->port_media == media) { |
| 84 | return; |
| 85 | } |
| 86 | |
| 87 | port->port_media = media; |
| 88 | if (sc->sc_iftop->iftop_portstate) { |
| 89 | (*sc->sc_iftop->iftop_portstate)(port); |
| 90 | } |
| 91 | } |
| 92 | |