1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 223f9d6ad7SLin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23*0e60744cSPavel Zakharov * Copyright (c) 2016 by Delphix. All rights reserved. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #include <assert.h> 27fa9e4066Sahrens #include <sys/zfs_context.h> 28fa9e4066Sahrens #include <sys/avl.h> 29fa9e4066Sahrens #include <string.h> 30fa9e4066Sahrens #include <stdio.h> 31fa9e4066Sahrens #include <stdlib.h> 32fa9e4066Sahrens #include <sys/spa.h> 33fa9e4066Sahrens #include <sys/fs/zfs.h> 34ea8dc4b6Seschrock #include <sys/refcount.h> 35*0e60744cSPavel Zakharov #include <dlfcn.h> 36fa9e4066Sahrens 37fa9e4066Sahrens /* 38fa9e4066Sahrens * Routines needed by more than one client of libzpool. 39fa9e4066Sahrens */ 40fa9e4066Sahrens 41fa9e4066Sahrens void 42fa9e4066Sahrens nicenum(uint64_t num, char *buf) 43fa9e4066Sahrens { 44fa9e4066Sahrens uint64_t n = num; 45fa9e4066Sahrens int index = 0; 46fa9e4066Sahrens char u; 47fa9e4066Sahrens 48fa9e4066Sahrens while (n >= 1024) { 49fa9e4066Sahrens n = (n + (1024 / 2)) / 1024; /* Round up or down */ 50fa9e4066Sahrens index++; 51fa9e4066Sahrens } 52fa9e4066Sahrens 53fa9e4066Sahrens u = " KMGTPE"[index]; 54fa9e4066Sahrens 55fa9e4066Sahrens if (index == 0) { 56fa9e4066Sahrens (void) sprintf(buf, "%llu", (u_longlong_t)n); 57fa9e4066Sahrens } else if (n < 10 && (num & (num - 1)) != 0) { 58fa9e4066Sahrens (void) sprintf(buf, "%.2f%c", 59fa9e4066Sahrens (double)num / (1ULL << 10 * index), u); 60fa9e4066Sahrens } else if (n < 100 && (num & (num - 1)) != 0) { 61fa9e4066Sahrens (void) sprintf(buf, "%.1f%c", 62fa9e4066Sahrens (double)num / (1ULL << 10 * index), u); 63fa9e4066Sahrens } else { 64fa9e4066Sahrens (void) sprintf(buf, "%llu%c", (u_longlong_t)n, u); 65fa9e4066Sahrens } 66fa9e4066Sahrens } 67fa9e4066Sahrens 68fa9e4066Sahrens static void 69e14bb325SJeff Bonwick show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent) 70fa9e4066Sahrens { 71fa9e4066Sahrens vdev_stat_t *vs; 72e14bb325SJeff Bonwick vdev_stat_t v0 = { 0 }; 73fa9e4066Sahrens uint64_t sec; 748654d025Sperrin uint64_t is_log = 0; 75e14bb325SJeff Bonwick nvlist_t **child; 76e14bb325SJeff Bonwick uint_t c, children; 77fa9e4066Sahrens char used[6], avail[6]; 78fa9e4066Sahrens char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6]; 798654d025Sperrin char *prefix = ""; 80fa9e4066Sahrens 81e14bb325SJeff Bonwick if (indent == 0 && desc != NULL) { 82e14bb325SJeff Bonwick (void) printf(" " 83fa9e4066Sahrens " capacity operations bandwidth ---- errors ----\n"); 84e14bb325SJeff Bonwick (void) printf("description " 85fa9e4066Sahrens "used avail read write read write read write cksum\n"); 86fa9e4066Sahrens } 87fa9e4066Sahrens 88e14bb325SJeff Bonwick if (desc != NULL) { 89e14bb325SJeff Bonwick (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log); 90e14bb325SJeff Bonwick 91e14bb325SJeff Bonwick if (is_log) 92e14bb325SJeff Bonwick prefix = "log "; 93e14bb325SJeff Bonwick 943f9d6ad7SLin Ling if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS, 95e14bb325SJeff Bonwick (uint64_t **)&vs, &c) != 0) 96e14bb325SJeff Bonwick vs = &v0; 97e14bb325SJeff Bonwick 98e14bb325SJeff Bonwick sec = MAX(1, vs->vs_timestamp / NANOSEC); 99e14bb325SJeff Bonwick 100e14bb325SJeff Bonwick nicenum(vs->vs_alloc, used); 101e14bb325SJeff Bonwick nicenum(vs->vs_space - vs->vs_alloc, avail); 102e14bb325SJeff Bonwick nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops); 103e14bb325SJeff Bonwick nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops); 104e14bb325SJeff Bonwick nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes); 105e14bb325SJeff Bonwick nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes); 106e14bb325SJeff Bonwick nicenum(vs->vs_read_errors, rerr); 107e14bb325SJeff Bonwick nicenum(vs->vs_write_errors, werr); 108e14bb325SJeff Bonwick nicenum(vs->vs_checksum_errors, cerr); 109e14bb325SJeff Bonwick 110e14bb325SJeff Bonwick (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n", 111e14bb325SJeff Bonwick indent, "", 112e14bb325SJeff Bonwick prefix, 113e14bb325SJeff Bonwick indent + strlen(prefix) - 25 - (vs->vs_space ? 0 : 12), 114e14bb325SJeff Bonwick desc, 115e14bb325SJeff Bonwick vs->vs_space ? 6 : 0, vs->vs_space ? used : "", 116e14bb325SJeff Bonwick vs->vs_space ? 6 : 0, vs->vs_space ? avail : "", 117e14bb325SJeff Bonwick rops, wops, rbytes, wbytes, rerr, werr, cerr); 118e14bb325SJeff Bonwick } 119e14bb325SJeff Bonwick 120e14bb325SJeff Bonwick if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0) 121fa9e4066Sahrens return; 122fa9e4066Sahrens 123fa9e4066Sahrens for (c = 0; c < children; c++) { 124fa9e4066Sahrens nvlist_t *cnv = child[c]; 12599653d4eSeschrock char *cname, *tname; 12699653d4eSeschrock uint64_t np; 127fa9e4066Sahrens if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) && 128fa9e4066Sahrens nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname)) 129fa9e4066Sahrens cname = "<unknown>"; 13099653d4eSeschrock tname = calloc(1, strlen(cname) + 2); 13199653d4eSeschrock (void) strcpy(tname, cname); 13299653d4eSeschrock if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0) 13399653d4eSeschrock tname[strlen(tname)] = '0' + np; 134e14bb325SJeff Bonwick show_vdev_stats(tname, ctype, cnv, indent + 2); 13599653d4eSeschrock free(tname); 136fa9e4066Sahrens } 137fa9e4066Sahrens } 138fa9e4066Sahrens 139fa9e4066Sahrens void 140fa9e4066Sahrens show_pool_stats(spa_t *spa) 141fa9e4066Sahrens { 1420373e76bSbonwick nvlist_t *config, *nvroot; 1430373e76bSbonwick char *name; 144fa9e4066Sahrens 145e14bb325SJeff Bonwick VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0); 1460373e76bSbonwick 147fa9e4066Sahrens VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 148fa9e4066Sahrens &nvroot) == 0); 1490373e76bSbonwick VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 1500373e76bSbonwick &name) == 0); 151fa9e4066Sahrens 152e14bb325SJeff Bonwick show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0); 153e14bb325SJeff Bonwick show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0); 154e14bb325SJeff Bonwick show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0); 155e14bb325SJeff Bonwick 156e14bb325SJeff Bonwick nvlist_free(config); 157fa9e4066Sahrens } 158*0e60744cSPavel Zakharov 159*0e60744cSPavel Zakharov /* 160*0e60744cSPavel Zakharov * Sets given global variable in libzpool to given unsigned 32-bit value. 161*0e60744cSPavel Zakharov * arg: "<variable>=<value>" 162*0e60744cSPavel Zakharov */ 163*0e60744cSPavel Zakharov int 164*0e60744cSPavel Zakharov set_global_var(char *arg) 165*0e60744cSPavel Zakharov { 166*0e60744cSPavel Zakharov void *zpoolhdl; 167*0e60744cSPavel Zakharov char *varname = arg, *varval; 168*0e60744cSPavel Zakharov u_longlong_t val; 169*0e60744cSPavel Zakharov 170*0e60744cSPavel Zakharov #ifndef _LITTLE_ENDIAN 171*0e60744cSPavel Zakharov /* 172*0e60744cSPavel Zakharov * On big endian systems changing a 64-bit variable would set the high 173*0e60744cSPavel Zakharov * 32 bits instead of the low 32 bits, which could cause unexpected 174*0e60744cSPavel Zakharov * results. 175*0e60744cSPavel Zakharov */ 176*0e60744cSPavel Zakharov fprintf(stderr, "Setting global variables is only supported on " 177*0e60744cSPavel Zakharov "little-endian systems\n", varname); 178*0e60744cSPavel Zakharov return (ENOTSUP); 179*0e60744cSPavel Zakharov #endif 180*0e60744cSPavel Zakharov if ((varval = strchr(arg, '=')) != NULL) { 181*0e60744cSPavel Zakharov *varval = '\0'; 182*0e60744cSPavel Zakharov varval++; 183*0e60744cSPavel Zakharov val = strtoull(varval, NULL, 0); 184*0e60744cSPavel Zakharov if (val > UINT32_MAX) { 185*0e60744cSPavel Zakharov fprintf(stderr, "Value for global variable '%s' must " 186*0e60744cSPavel Zakharov "be a 32-bit unsigned integer\n", varname); 187*0e60744cSPavel Zakharov return (EOVERFLOW); 188*0e60744cSPavel Zakharov } 189*0e60744cSPavel Zakharov } else { 190*0e60744cSPavel Zakharov return (EINVAL); 191*0e60744cSPavel Zakharov } 192*0e60744cSPavel Zakharov 193*0e60744cSPavel Zakharov zpoolhdl = dlopen("libzpool.so", RTLD_LAZY); 194*0e60744cSPavel Zakharov if (zpoolhdl != NULL) { 195*0e60744cSPavel Zakharov uint32_t *var; 196*0e60744cSPavel Zakharov var = dlsym(zpoolhdl, varname); 197*0e60744cSPavel Zakharov if (var == NULL) { 198*0e60744cSPavel Zakharov fprintf(stderr, "Global variable '%s' does not exist " 199*0e60744cSPavel Zakharov "in libzpool.so\n", varname); 200*0e60744cSPavel Zakharov return (EINVAL); 201*0e60744cSPavel Zakharov } 202*0e60744cSPavel Zakharov *var = (uint32_t)val; 203*0e60744cSPavel Zakharov 204*0e60744cSPavel Zakharov dlclose(zpoolhdl); 205*0e60744cSPavel Zakharov } else { 206*0e60744cSPavel Zakharov fprintf(stderr, "Failed to open libzpool.so to set global " 207*0e60744cSPavel Zakharov "variable\n"); 208*0e60744cSPavel Zakharov return (EIO); 209*0e60744cSPavel Zakharov } 210*0e60744cSPavel Zakharov 211*0e60744cSPavel Zakharov return (0); 212*0e60744cSPavel Zakharov } 213