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/*-
* Copyright (c) 2002 Poul-Henning Kamp
* Copyright (c) 2002 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed for the FreeBSD Project by Poul-Henning Kamp
* and NAI Labs, the Security Research Division of Network Associates, Inc.
* under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
* DARPA CHATS research program.
*
* 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.
* 3. The names of the authors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/bio.h>
#include <sys/sysctl.h>
#include <sys/proc.h>
#include <sys/kthread.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/sx.h>
#include <sys/sbuf.h>
#include <sys/errno.h>
#include <geom/geom.h>
#include <geom/geom_int.h>
MALLOC_DEFINE(M_GEOM, "GEOM", "Geom data structures");
struct sx topology_lock;
static struct proc *g_up_proc;
int g_debugflags;
static void
g_up_procbody(void)
{
struct proc *p = g_up_proc;
struct thread *tp = &p->p_xxthread;
curthread->td_base_pri = PRIBIO;
for(;;) {
g_io_schedule_up(tp);
mtx_lock(&Giant);
tsleep(&g_wait_up, PRIBIO, "g_up", hz/10);
mtx_unlock(&Giant);
}
}
struct kproc_desc g_up_kp = {
"g_up",
g_up_procbody,
&g_up_proc,
};
static struct proc *g_down_proc;
static void
g_down_procbody(void)
{
struct proc *p = g_down_proc;
struct thread *tp = &p->p_xxthread;
curthread->td_base_pri = PRIBIO;
for(;;) {
g_io_schedule_down(tp);
mtx_lock(&Giant);
tsleep(&g_wait_down, PRIBIO, "g_down", hz/10);
mtx_unlock(&Giant);
}
}
struct kproc_desc g_down_kp = {
"g_down",
g_down_procbody,
&g_down_proc,
};
static struct proc *g_event_proc;
static void
g_event_procbody(void)
{
curthread->td_base_pri = PRIBIO;
for(;;) {
g_run_events();
mtx_lock(&Giant);
tsleep(&g_wait_event, PRIBIO, "g_events", hz/10);
mtx_unlock(&Giant);
}
}
struct kproc_desc g_event_kp = {
"g_event",
g_event_procbody,
&g_event_proc,
};
void
g_init(void)
{
printf("Initializing GEOMetry subsystem\n");
if (bootverbose)
g_debugflags |= G_T_TOPOLOGY;
sx_init(&topology_lock, "GEOM topology");
g_io_init();
g_event_init();
mtx_lock(&Giant);
kproc_start(&g_event_kp);
kproc_start(&g_up_kp);
kproc_start(&g_down_kp);
mtx_unlock(&Giant);
}
static int
sysctl_debug_geomdot(SYSCTL_HANDLER_ARGS)
{
int i, error;
struct sbuf *sb;
i = 0;
sb = g_confdot();
error = sysctl_handle_opaque(oidp, sbuf_data(sb), sbuf_len(sb), req);
sbuf_delete(sb);
return (error);
}
SYSCTL_PROC(_debug, OID_AUTO, geomdot, CTLTYPE_STRING|CTLFLAG_RD,
0, 0, sysctl_debug_geomdot, "A",
"Dump the GEOM config");
static int
sysctl_debug_geomconf(SYSCTL_HANDLER_ARGS)
{
int i, error;
struct sbuf *sb;
i = 0;
sb = g_conf();
error = sysctl_handle_opaque(oidp, sbuf_data(sb), sbuf_len(sb), req);
sbuf_delete(sb);
return (error);
}
SYSCTL_PROC(_debug, OID_AUTO, geomconf, CTLTYPE_STRING|CTLFLAG_RD,
0, 0, sysctl_debug_geomconf, "A",
"Dump the GEOM config");
SYSCTL_INT(_debug, OID_AUTO, geomdebugflags, CTLTYPE_INT|CTLFLAG_RW,
&g_debugflags, 0, "");
SYSCTL_INT(_debug_sizeof, OID_AUTO, g_class, CTLTYPE_INT|CTLFLAG_RD,
0, sizeof(struct g_class), "");
SYSCTL_INT(_debug_sizeof, OID_AUTO, g_geom, CTLTYPE_INT|CTLFLAG_RD,
0, sizeof(struct g_geom), "");
SYSCTL_INT(_debug_sizeof, OID_AUTO, g_provider, CTLTYPE_INT|CTLFLAG_RD,
0, sizeof(struct g_provider), "");
SYSCTL_INT(_debug_sizeof, OID_AUTO, g_consumer, CTLTYPE_INT|CTLFLAG_RD,
0, sizeof(struct g_consumer), "");
SYSCTL_INT(_debug_sizeof, OID_AUTO, g_bioq, CTLTYPE_INT|CTLFLAG_RD,
0, sizeof(struct g_bioq), "");
SYSCTL_INT(_debug_sizeof, OID_AUTO, g_event, CTLTYPE_INT|CTLFLAG_RD,
0, sizeof(struct g_event), "");
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