258 lines
6.8 KiB
C
258 lines
6.8 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* Copyright (c) 2016 by Delphix. All rights reserved.
|
|
* Copyright 2017 Jason King
|
|
* Copyright (c) 2017, Intel Corporation.
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <sys/zfs_context.h>
|
|
#include <sys/avl.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/spa.h>
|
|
#include <sys/fs/zfs.h>
|
|
#include <sys/refcount.h>
|
|
#include <sys/zfs_ioctl.h>
|
|
#include <dlfcn.h>
|
|
#include <libzutil.h>
|
|
|
|
/*
|
|
* Routines needed by more than one client of libzpool.
|
|
*/
|
|
|
|
static void
|
|
show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent)
|
|
{
|
|
vdev_stat_t *vs;
|
|
vdev_stat_t *v0 = { 0 };
|
|
uint64_t sec;
|
|
uint64_t is_log = 0;
|
|
nvlist_t **child;
|
|
uint_t c, children;
|
|
char used[6], avail[6];
|
|
char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6];
|
|
|
|
v0 = umem_zalloc(sizeof (*v0), UMEM_NOFAIL);
|
|
|
|
if (indent == 0 && desc != NULL) {
|
|
(void) printf(" "
|
|
" capacity operations bandwidth ---- errors ----\n");
|
|
(void) printf("description "
|
|
"used avail read write read write read write cksum\n");
|
|
}
|
|
|
|
if (desc != NULL) {
|
|
char *suffix = "", *bias = NULL;
|
|
char bias_suffix[32];
|
|
|
|
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log);
|
|
(void) nvlist_lookup_string(nv, ZPOOL_CONFIG_ALLOCATION_BIAS,
|
|
&bias);
|
|
if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
|
|
(uint64_t **)&vs, &c) != 0)
|
|
vs = v0;
|
|
|
|
if (bias != NULL) {
|
|
(void) snprintf(bias_suffix, sizeof (bias_suffix),
|
|
" (%s)", bias);
|
|
suffix = bias_suffix;
|
|
} else if (is_log) {
|
|
suffix = " (log)";
|
|
}
|
|
|
|
sec = MAX(1, vs->vs_timestamp / NANOSEC);
|
|
|
|
nicenum(vs->vs_alloc, used, sizeof (used));
|
|
nicenum(vs->vs_space - vs->vs_alloc, avail, sizeof (avail));
|
|
nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops, sizeof (rops));
|
|
nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops, sizeof (wops));
|
|
nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes,
|
|
sizeof (rbytes));
|
|
nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes,
|
|
sizeof (wbytes));
|
|
nicenum(vs->vs_read_errors, rerr, sizeof (rerr));
|
|
nicenum(vs->vs_write_errors, werr, sizeof (werr));
|
|
nicenum(vs->vs_checksum_errors, cerr, sizeof (cerr));
|
|
|
|
(void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n",
|
|
indent, "",
|
|
desc,
|
|
(int)(indent+strlen(desc)-25-(vs->vs_space ? 0 : 12)),
|
|
suffix,
|
|
vs->vs_space ? 6 : 0, vs->vs_space ? used : "",
|
|
vs->vs_space ? 6 : 0, vs->vs_space ? avail : "",
|
|
rops, wops, rbytes, wbytes, rerr, werr, cerr);
|
|
}
|
|
umem_free(v0, sizeof (*v0));
|
|
|
|
if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0)
|
|
return;
|
|
|
|
for (c = 0; c < children; c++) {
|
|
nvlist_t *cnv = child[c];
|
|
char *cname = NULL, *tname;
|
|
uint64_t np;
|
|
int len;
|
|
if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) &&
|
|
nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname))
|
|
cname = "<unknown>";
|
|
len = strlen(cname) + 2;
|
|
tname = umem_zalloc(len, UMEM_NOFAIL);
|
|
(void) strlcpy(tname, cname, len);
|
|
if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0)
|
|
tname[strlen(tname)] = '0' + np;
|
|
show_vdev_stats(tname, ctype, cnv, indent + 2);
|
|
umem_free(tname, len);
|
|
}
|
|
}
|
|
|
|
void
|
|
show_pool_stats(spa_t *spa)
|
|
{
|
|
nvlist_t *config, *nvroot;
|
|
char *name;
|
|
|
|
VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0);
|
|
|
|
VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
|
|
&nvroot) == 0);
|
|
VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
|
|
&name) == 0);
|
|
|
|
show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0);
|
|
show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0);
|
|
show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0);
|
|
|
|
nvlist_free(config);
|
|
}
|
|
|
|
/*
|
|
* Sets given global variable in libzpool to given unsigned 32-bit value.
|
|
* arg: "<variable>=<value>"
|
|
*/
|
|
int
|
|
set_global_var(char *arg)
|
|
{
|
|
void *zpoolhdl;
|
|
char *varname = arg, *varval;
|
|
u_longlong_t val;
|
|
|
|
#ifndef _LITTLE_ENDIAN
|
|
/*
|
|
* On big endian systems changing a 64-bit variable would set the high
|
|
* 32 bits instead of the low 32 bits, which could cause unexpected
|
|
* results.
|
|
*/
|
|
fprintf(stderr, "Setting global variables is only supported on "
|
|
"little-endian systems\n");
|
|
return (ENOTSUP);
|
|
#endif
|
|
if (arg != NULL && (varval = strchr(arg, '=')) != NULL) {
|
|
*varval = '\0';
|
|
varval++;
|
|
val = strtoull(varval, NULL, 0);
|
|
if (val > UINT32_MAX) {
|
|
fprintf(stderr, "Value for global variable '%s' must "
|
|
"be a 32-bit unsigned integer\n", varname);
|
|
return (EOVERFLOW);
|
|
}
|
|
} else {
|
|
return (EINVAL);
|
|
}
|
|
|
|
zpoolhdl = dlopen("libzpool.so", RTLD_LAZY);
|
|
if (zpoolhdl != NULL) {
|
|
uint32_t *var;
|
|
var = dlsym(zpoolhdl, varname);
|
|
if (var == NULL) {
|
|
fprintf(stderr, "Global variable '%s' does not exist "
|
|
"in libzpool.so\n", varname);
|
|
return (EINVAL);
|
|
}
|
|
*var = (uint32_t)val;
|
|
|
|
dlclose(zpoolhdl);
|
|
} else {
|
|
fprintf(stderr, "Failed to open libzpool.so to set global "
|
|
"variable\n");
|
|
return (EIO);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static nvlist_t *
|
|
refresh_config(void *unused, nvlist_t *tryconfig)
|
|
{
|
|
return (spa_tryimport(tryconfig));
|
|
}
|
|
|
|
static int
|
|
pool_active(void *unused, const char *name, uint64_t guid,
|
|
boolean_t *isactive)
|
|
{
|
|
zfs_cmd_t *zcp;
|
|
nvlist_t *innvl;
|
|
char *packed = NULL;
|
|
size_t size = 0;
|
|
int fd, ret;
|
|
|
|
/*
|
|
* Use ZFS_IOC_POOL_SYNC to confirm if a pool is active
|
|
*/
|
|
|
|
fd = open("/dev/zfs", O_RDWR);
|
|
if (fd < 0)
|
|
return (-1);
|
|
|
|
zcp = umem_zalloc(sizeof (zfs_cmd_t), UMEM_NOFAIL);
|
|
|
|
innvl = fnvlist_alloc();
|
|
fnvlist_add_boolean_value(innvl, "force", B_FALSE);
|
|
|
|
(void) strlcpy(zcp->zc_name, name, sizeof (zcp->zc_name));
|
|
packed = fnvlist_pack(innvl, &size);
|
|
zcp->zc_nvlist_src = (uint64_t)(uintptr_t)packed;
|
|
zcp->zc_nvlist_src_size = size;
|
|
|
|
ret = ioctl(fd, ZFS_IOC_POOL_SYNC, zcp);
|
|
|
|
fnvlist_pack_free(packed, size);
|
|
free((void *)(uintptr_t)zcp->zc_nvlist_dst);
|
|
nvlist_free(innvl);
|
|
umem_free(zcp, sizeof (zfs_cmd_t));
|
|
|
|
(void) close(fd);
|
|
|
|
*isactive = (ret == 0);
|
|
|
|
return (0);
|
|
}
|
|
|
|
const pool_config_ops_t libzpool_config_ops = {
|
|
.pco_refresh_config = refresh_config,
|
|
.pco_pool_active = pool_active,
|
|
};
|