freebsd-dev/sys/geom/geom_dump.c
Alexander Motin 2efaef42e4 Wrap g_trace() into a macro to avoid unneeded calls.
In most cases with debug disabled this function does nothing, but argument
passing and the call still cost measurable time due to cache misses, etc.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2019-12-05 04:52:19 +00:00

333 lines
8.8 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/sbuf.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <machine/stdarg.h>
#include <geom/geom.h>
#include <geom/geom_int.h>
#include <geom/geom_disk.h>
static void
g_confdot_consumer(struct sbuf *sb, struct g_consumer *cp)
{
sbuf_printf(sb, "z%p [label=\"r%dw%de%d\"];\n",
cp, cp->acr, cp->acw, cp->ace);
if (cp->provider)
sbuf_printf(sb, "z%p -> z%p;\n", cp, cp->provider);
}
static void
g_confdot_provider(struct sbuf *sb, struct g_provider *pp)
{
sbuf_printf(sb, "z%p [shape=hexagon,label=\"%s\\nr%dw%de%d\\nerr#%d\\n"
"sector=%u\\nstripe=%ju\"];\n", pp, pp->name, pp->acr, pp->acw,
pp->ace, pp->error, pp->sectorsize, (uintmax_t)pp->stripesize);
}
static void
g_confdot_geom(struct sbuf *sb, struct g_geom *gp)
{
struct g_consumer *cp;
struct g_provider *pp;
sbuf_printf(sb, "z%p [shape=box,label=\"%s\\n%s\\nr#%d\"];\n",
gp, gp->class->name, gp->name, gp->rank);
LIST_FOREACH(cp, &gp->consumer, consumer) {
g_confdot_consumer(sb, cp);
sbuf_printf(sb, "z%p -> z%p;\n", gp, cp);
}
LIST_FOREACH(pp, &gp->provider, provider) {
g_confdot_provider(sb, pp);
sbuf_printf(sb, "z%p -> z%p;\n", pp, gp);
}
}
static void
g_confdot_class(struct sbuf *sb, struct g_class *mp)
{
struct g_geom *gp;
LIST_FOREACH(gp, &mp->geom, geom)
g_confdot_geom(sb, gp);
}
void
g_confdot(void *p, int flag )
{
struct g_class *mp;
struct sbuf *sb;
KASSERT(flag != EV_CANCEL, ("g_confdot was cancelled"));
sb = p;
g_topology_assert();
sbuf_cat(sb, "digraph geom {\n");
LIST_FOREACH(mp, &g_classes, class)
g_confdot_class(sb, mp);
sbuf_cat(sb, "}\n");
sbuf_finish(sb);
}
static void
g_conftxt_geom(struct sbuf *sb, struct g_geom *gp, int level)
{
struct g_provider *pp;
struct g_consumer *cp;
if (gp->flags & G_GEOM_WITHER)
return;
LIST_FOREACH(pp, &gp->provider, provider) {
sbuf_printf(sb, "%d %s %s %ju %u", level, gp->class->name,
pp->name, (uintmax_t)pp->mediasize, pp->sectorsize);
if (gp->dumpconf != NULL)
gp->dumpconf(sb, NULL, gp, NULL, pp);
sbuf_cat(sb, "\n");
LIST_FOREACH(cp, &pp->consumers, consumers)
g_conftxt_geom(sb, cp->geom, level + 1);
}
}
static void
g_conftxt_class(struct sbuf *sb, struct g_class *mp)
{
struct g_geom *gp;
LIST_FOREACH(gp, &mp->geom, geom)
g_conftxt_geom(sb, gp, 0);
}
void
g_conftxt(void *p, int flag)
{
struct g_class *mp;
struct sbuf *sb;
KASSERT(flag != EV_CANCEL, ("g_conftxt was cancelled"));
sb = p;
g_topology_assert();
LIST_FOREACH(mp, &g_classes, class) {
if (!strcmp(mp->name, G_DISK_CLASS_NAME) || !strcmp(mp->name, "MD"))
g_conftxt_class(sb, mp);
}
sbuf_finish(sb);
}
void
g_conf_cat_escaped(struct sbuf *sb, const char *buf)
{
const u_char *c;
for (c = buf; *c != '\0'; c++) {
if (*c == '&' || *c == '<' || *c == '>' ||
*c == '\'' || *c == '"' || *c > 0x7e)
sbuf_printf(sb, "&#x%X;", *c);
else if (*c == '\t' || *c == '\n' || *c == '\r' || *c > 0x1f)
sbuf_putc(sb, *c);
else
sbuf_putc(sb, '?');
}
}
void
g_conf_printf_escaped(struct sbuf *sb, const char *fmt, ...)
{
struct sbuf *s;
va_list ap;
s = sbuf_new_auto();
va_start(ap, fmt);
sbuf_vprintf(s, fmt, ap);
va_end(ap);
sbuf_finish(s);
g_conf_cat_escaped(sb, sbuf_data(s));
sbuf_delete(s);
}
static void
g_conf_consumer(struct sbuf *sb, struct g_consumer *cp)
{
sbuf_printf(sb, "\t<consumer id=\"%p\">\n", cp);
sbuf_printf(sb, "\t <geom ref=\"%p\"/>\n", cp->geom);
if (cp->provider != NULL)
sbuf_printf(sb, "\t <provider ref=\"%p\"/>\n", cp->provider);
sbuf_printf(sb, "\t <mode>r%dw%de%d</mode>\n",
cp->acr, cp->acw, cp->ace);
if (cp->geom->flags & G_GEOM_WITHER)
;
else if (cp->geom->dumpconf != NULL) {
sbuf_cat(sb, "\t <config>\n");
cp->geom->dumpconf(sb, "\t ", cp->geom, cp, NULL);
sbuf_cat(sb, "\t </config>\n");
}
sbuf_cat(sb, "\t</consumer>\n");
}
static void
g_conf_provider(struct sbuf *sb, struct g_provider *pp)
{
sbuf_printf(sb, "\t<provider id=\"%p\">\n", pp);
sbuf_printf(sb, "\t <geom ref=\"%p\"/>\n", pp->geom);
sbuf_printf(sb, "\t <mode>r%dw%de%d</mode>\n",
pp->acr, pp->acw, pp->ace);
sbuf_cat(sb, "\t <name>");
g_conf_cat_escaped(sb, pp->name);
sbuf_cat(sb, "</name>\n");
sbuf_printf(sb, "\t <mediasize>%jd</mediasize>\n",
(intmax_t)pp->mediasize);
sbuf_printf(sb, "\t <sectorsize>%u</sectorsize>\n", pp->sectorsize);
sbuf_printf(sb, "\t <stripesize>%ju</stripesize>\n", (uintmax_t)pp->stripesize);
sbuf_printf(sb, "\t <stripeoffset>%ju</stripeoffset>\n", (uintmax_t)pp->stripeoffset);
if (pp->flags & G_PF_WITHER)
sbuf_cat(sb, "\t <wither/>\n");
else if (pp->geom->flags & G_GEOM_WITHER)
;
else if (pp->geom->dumpconf != NULL) {
sbuf_cat(sb, "\t <config>\n");
pp->geom->dumpconf(sb, "\t ", pp->geom, NULL, pp);
sbuf_cat(sb, "\t </config>\n");
}
sbuf_cat(sb, "\t</provider>\n");
}
static void
g_conf_geom(struct sbuf *sb, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
{
struct g_consumer *cp2;
struct g_provider *pp2;
struct g_geom_alias *gap;
sbuf_printf(sb, " <geom id=\"%p\">\n", gp);
sbuf_printf(sb, " <class ref=\"%p\"/>\n", gp->class);
sbuf_cat(sb, " <name>");
g_conf_cat_escaped(sb, gp->name);
sbuf_cat(sb, "</name>\n");
sbuf_printf(sb, " <rank>%d</rank>\n", gp->rank);
if (gp->flags & G_GEOM_WITHER)
sbuf_cat(sb, " <wither/>\n");
else if (gp->dumpconf != NULL) {
sbuf_cat(sb, " <config>\n");
gp->dumpconf(sb, "\t", gp, NULL, NULL);
sbuf_cat(sb, " </config>\n");
}
LIST_FOREACH(cp2, &gp->consumer, consumer) {
if (cp != NULL && cp != cp2)
continue;
g_conf_consumer(sb, cp2);
}
LIST_FOREACH(pp2, &gp->provider, provider) {
if (pp != NULL && pp != pp2)
continue;
g_conf_provider(sb, pp2);
}
LIST_FOREACH(gap, &gp->aliases, ga_next) {
sbuf_cat(sb, " <alias>\n");
g_conf_cat_escaped(sb, gap->ga_alias);
sbuf_cat(sb, " </alias>\n");
}
sbuf_cat(sb, " </geom>\n");
}
static void
g_conf_class(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
{
struct g_geom *gp2;
sbuf_printf(sb, " <class id=\"%p\">\n", mp);
sbuf_cat(sb, " <name>");
g_conf_cat_escaped(sb, mp->name);
sbuf_cat(sb, "</name>\n");
LIST_FOREACH(gp2, &mp->geom, geom) {
if (gp != NULL && gp != gp2)
continue;
g_conf_geom(sb, gp2, pp, cp);
}
sbuf_cat(sb, " </class>\n");
}
void
g_conf_specific(struct sbuf *sb, struct g_class *mp, struct g_geom *gp, struct g_provider *pp, struct g_consumer *cp)
{
struct g_class *mp2;
g_topology_assert();
sbuf_cat(sb, "<mesh>\n");
LIST_FOREACH(mp2, &g_classes, class) {
if (mp != NULL && mp != mp2)
continue;
g_conf_class(sb, mp2, gp, pp, cp);
}
sbuf_cat(sb, "</mesh>\n");
sbuf_finish(sb);
}
void
g_confxml(void *p, int flag)
{
KASSERT(flag != EV_CANCEL, ("g_confxml was cancelled"));
g_topology_assert();
g_conf_specific(p, NULL, NULL, NULL, NULL);
}
void
(g_trace)(int level, const char *fmt, ...)
{
va_list ap;
if (!(g_debugflags & level))
return;
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
}