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Implement detaching of SCSI busses.

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This commit is contained in:
thorpej 1999-09-11 21:25:26 +00:00
parent f7c20484b6
commit 5116cf4fa5
1 changed files with 69 additions and 2 deletions
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71
sys/dev/scsipi/scsiconf.c
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@ -1,4 +1,4 @@
/* $NetBSD: scsiconf.c,v 1.125 1999/09/09 20:06:52 hwr Exp $ */
/* $NetBSD: scsiconf.c,v 1.126 1999/09/11 21:25:26 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@ -99,10 +99,14 @@ struct scsipi_device probe_switch = {
int scsibusmatch __P((struct device *, struct cfdata *, void *));
void scsibusattach __P((struct device *, struct device *, void *));
int scsibusactivate __P((struct device *, enum devact));
int scsibusdetach __P((struct device *, int flags));
int scsibussubmatch __P((struct device *, struct cfdata *, void *));
struct cfattach scsibus_ca = {
sizeof(struct scsibus_softc), scsibusmatch, scsibusattach
sizeof(struct scsibus_softc), scsibusmatch, scsibusattach,
scsibusdetach, scsibusactivate,
};
extern struct cfdriver scsibus_cd;
@ -225,6 +229,69 @@ scsibussubmatch(parent, cf, aux)
return ((*cf->cf_attach->ca_match)(parent, cf, aux));
}
int
scsibusactivate(self, act)
struct device *self;
enum devact act;
{
struct scsibus_softc *sc = (struct scsibus_softc *) self;
struct scsipi_link *sc_link;
int target, lun, error = 0, s;
s = splbio();
switch (act) {
case DVACT_ACTIVATE:
error = EOPNOTSUPP;
break;
case DVACT_DEACTIVATE:
for (target = 0; target <= sc->sc_maxtarget; target++) {
if (target ==
sc->adapter_link->scsipi_scsi.adapter_target)
continue;
for (lun = 0; lun <= sc->sc_maxlun; lun++) {
sc_link = sc->sc_link[target][lun];
if (sc_link == NULL)
continue;
error =
config_deactivate(sc_link->device_softc);
if (error)
goto out;
}
}
break;
}
out:
splx(s);
return (error);
}
int
scsibusdetach(self, flags)
struct device *self;
int flags;
{
struct scsibus_softc *sc = (struct scsibus_softc *) self;
struct scsipi_link *sc_link;
int target, lun, error;
for (target = 0; target <= sc->sc_maxtarget; target++) {
if (target == sc->adapter_link->scsipi_scsi.adapter_target)
continue;
for (lun = 0; lun <= sc->sc_maxlun; lun++) {
sc_link = sc->sc_link[target][lun];
if (sc_link == NULL)
continue;
error = config_detach(sc_link->device_softc, flags);
if (error)
return (error);
free(sc_link, M_DEVBUF);
sc->sc_link[target][lun] = NULL;
}
}
return (0);
}
/*
* Probe the requested scsi bus. It must be already set up.
* -1 requests all set up scsi busses.