fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The contents of this file are subject to the terms of the
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Common Development and Distribution License (the "License").
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * You may not use this file except in compliance with the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fa9e4066f08beec538e775443c5be79dd423fcabahrens * or http://www.opensolaris.org/os/licensing.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See the License for the specific language governing permissions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and limitations under the License.
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When distributing Covered Code, include this CDDL HEADER in each
fa9e4066f08beec538e775443c5be79dd423fcabahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If applicable, add the following below this CDDL HEADER, with the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fields enclosed by brackets "[]" replaced with your own identifying
fa9e4066f08beec538e775443c5be79dd423fcabahrens * information: Portions Copyright [yyyy] [name of copyright owner]
fa9e4066f08beec538e775443c5be79dd423fcabahrens *
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov * Copyright (c) 2016 by Delphix. All rights reserved.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <assert.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/zfs_context.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/avl.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <string.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdio.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <stdlib.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/spa.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens#include <sys/fs/zfs.h>
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock#include <sys/refcount.h>
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov#include <dlfcn.h>
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens/*
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Routines needed by more than one client of libzpool.
fa9e4066f08beec538e775443c5be79dd423fcabahrens */
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensnicenum(uint64_t num, char *buf)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t n = num;
fa9e4066f08beec538e775443c5be79dd423fcabahrens int index = 0;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char u;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens while (n >= 1024) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens n = (n + (1024 / 2)) / 1024; /* Round up or down */
fa9e4066f08beec538e775443c5be79dd423fcabahrens index++;
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens u = " KMGTPE"[index];
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (index == 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(buf, "%llu", (u_longlong_t)n);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else if (n < 10 && (num & (num - 1)) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(buf, "%.2f%c",
fa9e4066f08beec538e775443c5be79dd423fcabahrens (double)num / (1ULL << 10 * index), u);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else if (n < 100 && (num & (num - 1)) != 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(buf, "%.1f%c",
fa9e4066f08beec538e775443c5be79dd423fcabahrens (double)num / (1ULL << 10 * index), u);
fa9e4066f08beec538e775443c5be79dd423fcabahrens } else {
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(buf, "%llu%c", (u_longlong_t)n, u);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic void
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickshow_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
fa9e4066f08beec538e775443c5be79dd423fcabahrens vdev_stat_t *vs;
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick vdev_stat_t v0 = { 0 };
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t sec;
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin uint64_t is_log = 0;
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nvlist_t **child;
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick uint_t c, children;
fa9e4066f08beec538e775443c5be79dd423fcabahrens char used[6], avail[6];
fa9e4066f08beec538e775443c5be79dd423fcabahrens char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6];
8654d0253136055bd4cc2423d87378e8a37f2eb5perrin char *prefix = "";
fa9e4066f08beec538e775443c5be79dd423fcabahrens
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick if (indent == 0 && desc != NULL) {
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (void) printf(" "
fa9e4066f08beec538e775443c5be79dd423fcabahrens " capacity operations bandwidth ---- errors ----\n");
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (void) printf("description "
fa9e4066f08beec538e775443c5be79dd423fcabahrens "used avail read write read write read write cksum\n");
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick if (desc != NULL) {
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick if (is_log)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick prefix = "log ";
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (uint64_t **)&vs, &c) != 0)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick vs = &v0;
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick sec = MAX(1, vs->vs_timestamp / NANOSEC);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_alloc, used);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_space - vs->vs_alloc, avail);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_read_errors, rerr);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_write_errors, werr);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nicenum(vs->vs_checksum_errors, cerr);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n",
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick indent, "",
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick prefix,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick indent + strlen(prefix) - 25 - (vs->vs_space ? 0 : 12),
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick desc,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick vs->vs_space ? 6 : 0, vs->vs_space ? used : "",
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick vs->vs_space ? 6 : 0, vs->vs_space ? avail : "",
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick rops, wops, rbytes, wbytes, rerr, werr, cerr);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick }
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens return;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < children; c++) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_t *cnv = child[c];
99653d4ee642c6528e88224f12409a5f23060994eschrock char *cname, *tname;
99653d4ee642c6528e88224f12409a5f23060994eschrock uint64_t np;
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) &&
fa9e4066f08beec538e775443c5be79dd423fcabahrens nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname))
fa9e4066f08beec538e775443c5be79dd423fcabahrens cname = "<unknown>";
99653d4ee642c6528e88224f12409a5f23060994eschrock tname = calloc(1, strlen(cname) + 2);
99653d4ee642c6528e88224f12409a5f23060994eschrock (void) strcpy(tname, cname);
99653d4ee642c6528e88224f12409a5f23060994eschrock if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0)
99653d4ee642c6528e88224f12409a5f23060994eschrock tname[strlen(tname)] = '0' + np;
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick show_vdev_stats(tname, ctype, cnv, indent + 2);
99653d4ee642c6528e88224f12409a5f23060994eschrock free(tname);
fa9e4066f08beec538e775443c5be79dd423fcabahrens }
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
fa9e4066f08beec538e775443c5be79dd423fcabahrens
fa9e4066f08beec538e775443c5be79dd423fcabahrensvoid
fa9e4066f08beec538e775443c5be79dd423fcabahrensshow_pool_stats(spa_t *spa)
fa9e4066f08beec538e775443c5be79dd423fcabahrens{
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick nvlist_t *config, *nvroot;
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick char *name;
fa9e4066f08beec538e775443c5be79dd423fcabahrens
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0);
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
fa9e4066f08beec538e775443c5be79dd423fcabahrens &nvroot) == 0);
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME,
0373e76b3c3643df49ef3483e0f293fdea61d8c6bonwick &name) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nvlist_free(config);
fa9e4066f08beec538e775443c5be79dd423fcabahrens}
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov/*
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov * Sets given global variable in libzpool to given unsigned 32-bit value.
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov * arg: "<variable>=<value>"
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov */
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharovint
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharovset_global_var(char *arg)
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov{
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov void *zpoolhdl;
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov char *varname = arg, *varval;
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov u_longlong_t val;
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov#ifndef _LITTLE_ENDIAN
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov /*
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov * On big endian systems changing a 64-bit variable would set the high
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov * 32 bits instead of the low 32 bits, which could cause unexpected
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov * results.
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov */
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov fprintf(stderr, "Setting global variables is only supported on "
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov "little-endian systems\n", varname);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov return (ENOTSUP);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov#endif
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov if ((varval = strchr(arg, '=')) != NULL) {
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov *varval = '\0';
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov varval++;
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov val = strtoull(varval, NULL, 0);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov if (val > UINT32_MAX) {
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov fprintf(stderr, "Value for global variable '%s' must "
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov "be a 32-bit unsigned integer\n", varname);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov return (EOVERFLOW);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov }
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov } else {
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov return (EINVAL);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov }
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov zpoolhdl = dlopen("libzpool.so", RTLD_LAZY);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov if (zpoolhdl != NULL) {
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov uint32_t *var;
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov var = dlsym(zpoolhdl, varname);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov if (var == NULL) {
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov fprintf(stderr, "Global variable '%s' does not exist "
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov "in libzpool.so\n", varname);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov return (EINVAL);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov }
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov *var = (uint32_t)val;
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov dlclose(zpoolhdl);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov } else {
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov fprintf(stderr, "Failed to open libzpool.so to set global "
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov "variable\n");
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov return (EIO);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov }
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov return (0);
0e60744c982adecd0a1f146f5637475d07ab1069Pavel Zakharov}