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. 230e60744cSPavel Zakharov * Copyright (c) 2016 by Delphix. All rights reserved. 24f06dce2cSAndrew Stormont * Copyright 2017 RackTop Systems. 25*663207adSDon Brady * Copyright (c) 2017, Intel Corporation. 26fa9e4066Sahrens */ 27fa9e4066Sahrens 28fa9e4066Sahrens #include <assert.h> 29fa9e4066Sahrens #include <sys/zfs_context.h> 30fa9e4066Sahrens #include <sys/avl.h> 31fa9e4066Sahrens #include <string.h> 32fa9e4066Sahrens #include <stdio.h> 33fa9e4066Sahrens #include <stdlib.h> 34fa9e4066Sahrens #include <sys/spa.h> 35fa9e4066Sahrens #include <sys/fs/zfs.h> 36ea8dc4b6Seschrock #include <sys/refcount.h> 370e60744cSPavel Zakharov #include <dlfcn.h> 38fa9e4066Sahrens 39f06dce2cSAndrew Stormont extern void nicenum(uint64_t num, char *buf, size_t); 40f06dce2cSAndrew Stormont 41fa9e4066Sahrens /* 42fa9e4066Sahrens * Routines needed by more than one client of libzpool. 43fa9e4066Sahrens */ 44fa9e4066Sahrens 45fa9e4066Sahrens static void 46e14bb325SJeff Bonwick show_vdev_stats(const char *desc, const char *ctype, nvlist_t *nv, int indent) 47fa9e4066Sahrens { 48fa9e4066Sahrens vdev_stat_t *vs; 49e14bb325SJeff Bonwick vdev_stat_t v0 = { 0 }; 50fa9e4066Sahrens uint64_t sec; 518654d025Sperrin uint64_t is_log = 0; 52e14bb325SJeff Bonwick nvlist_t **child; 53e14bb325SJeff Bonwick uint_t c, children; 54fa9e4066Sahrens char used[6], avail[6]; 55fa9e4066Sahrens char rops[6], wops[6], rbytes[6], wbytes[6], rerr[6], werr[6], cerr[6]; 56fa9e4066Sahrens 57e14bb325SJeff Bonwick if (indent == 0 && desc != NULL) { 58e14bb325SJeff Bonwick (void) printf(" " 59fa9e4066Sahrens " capacity operations bandwidth ---- errors ----\n"); 60e14bb325SJeff Bonwick (void) printf("description " 61fa9e4066Sahrens "used avail read write read write read write cksum\n"); 62fa9e4066Sahrens } 63fa9e4066Sahrens 64e14bb325SJeff Bonwick if (desc != NULL) { 65*663207adSDon Brady char *suffix = "", *bias = NULL; 66*663207adSDon Brady char bias_suffix[32]; 67e14bb325SJeff Bonwick 68*663207adSDon Brady (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_LOG, &is_log); 69*663207adSDon Brady (void) nvlist_lookup_string(nv, ZPOOL_CONFIG_ALLOCATION_BIAS, 70*663207adSDon Brady &bias); 713f9d6ad7SLin Ling if (nvlist_lookup_uint64_array(nv, ZPOOL_CONFIG_VDEV_STATS, 72e14bb325SJeff Bonwick (uint64_t **)&vs, &c) != 0) 73e14bb325SJeff Bonwick vs = &v0; 74e14bb325SJeff Bonwick 75*663207adSDon Brady if (bias != NULL) { 76*663207adSDon Brady (void) snprintf(bias_suffix, sizeof (bias_suffix), 77*663207adSDon Brady " (%s)", bias); 78*663207adSDon Brady suffix = bias_suffix; 79*663207adSDon Brady } else if (is_log) { 80*663207adSDon Brady suffix = " (log)"; 81*663207adSDon Brady } 82*663207adSDon Brady 83e14bb325SJeff Bonwick sec = MAX(1, vs->vs_timestamp / NANOSEC); 84e14bb325SJeff Bonwick 850a055120SJason King nicenum(vs->vs_alloc, used, sizeof (used)); 860a055120SJason King nicenum(vs->vs_space - vs->vs_alloc, avail, sizeof (avail)); 870a055120SJason King nicenum(vs->vs_ops[ZIO_TYPE_READ] / sec, rops, sizeof (rops)); 880a055120SJason King nicenum(vs->vs_ops[ZIO_TYPE_WRITE] / sec, wops, sizeof (wops)); 890a055120SJason King nicenum(vs->vs_bytes[ZIO_TYPE_READ] / sec, rbytes, 900a055120SJason King sizeof (rbytes)); 910a055120SJason King nicenum(vs->vs_bytes[ZIO_TYPE_WRITE] / sec, wbytes, 920a055120SJason King sizeof (wbytes)); 930a055120SJason King nicenum(vs->vs_read_errors, rerr, sizeof (rerr)); 940a055120SJason King nicenum(vs->vs_write_errors, werr, sizeof (werr)); 950a055120SJason King nicenum(vs->vs_checksum_errors, cerr, sizeof (cerr)); 96e14bb325SJeff Bonwick 97e14bb325SJeff Bonwick (void) printf("%*s%s%*s%*s%*s %5s %5s %5s %5s %5s %5s %5s\n", 98e14bb325SJeff Bonwick indent, "", 99e14bb325SJeff Bonwick desc, 100*663207adSDon Brady (int)(indent+strlen(desc)-25-(vs->vs_space ? 0 : 12)), 101*663207adSDon Brady suffix, 102e14bb325SJeff Bonwick vs->vs_space ? 6 : 0, vs->vs_space ? used : "", 103e14bb325SJeff Bonwick vs->vs_space ? 6 : 0, vs->vs_space ? avail : "", 104e14bb325SJeff Bonwick rops, wops, rbytes, wbytes, rerr, werr, cerr); 105e14bb325SJeff Bonwick } 106e14bb325SJeff Bonwick 107e14bb325SJeff Bonwick if (nvlist_lookup_nvlist_array(nv, ctype, &child, &children) != 0) 108fa9e4066Sahrens return; 109fa9e4066Sahrens 110fa9e4066Sahrens for (c = 0; c < children; c++) { 111fa9e4066Sahrens nvlist_t *cnv = child[c]; 11299653d4eSeschrock char *cname, *tname; 11399653d4eSeschrock uint64_t np; 114fa9e4066Sahrens if (nvlist_lookup_string(cnv, ZPOOL_CONFIG_PATH, &cname) && 115fa9e4066Sahrens nvlist_lookup_string(cnv, ZPOOL_CONFIG_TYPE, &cname)) 116fa9e4066Sahrens cname = "<unknown>"; 11799653d4eSeschrock tname = calloc(1, strlen(cname) + 2); 11899653d4eSeschrock (void) strcpy(tname, cname); 11999653d4eSeschrock if (nvlist_lookup_uint64(cnv, ZPOOL_CONFIG_NPARITY, &np) == 0) 12099653d4eSeschrock tname[strlen(tname)] = '0' + np; 121e14bb325SJeff Bonwick show_vdev_stats(tname, ctype, cnv, indent + 2); 12299653d4eSeschrock free(tname); 123fa9e4066Sahrens } 124fa9e4066Sahrens } 125fa9e4066Sahrens 126fa9e4066Sahrens void 127fa9e4066Sahrens show_pool_stats(spa_t *spa) 128fa9e4066Sahrens { 1290373e76bSbonwick nvlist_t *config, *nvroot; 1300373e76bSbonwick char *name; 131fa9e4066Sahrens 132e14bb325SJeff Bonwick VERIFY(spa_get_stats(spa_name(spa), &config, NULL, 0) == 0); 1330373e76bSbonwick 134fa9e4066Sahrens VERIFY(nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, 135fa9e4066Sahrens &nvroot) == 0); 1360373e76bSbonwick VERIFY(nvlist_lookup_string(config, ZPOOL_CONFIG_POOL_NAME, 1370373e76bSbonwick &name) == 0); 138fa9e4066Sahrens 139e14bb325SJeff Bonwick show_vdev_stats(name, ZPOOL_CONFIG_CHILDREN, nvroot, 0); 140e14bb325SJeff Bonwick show_vdev_stats(NULL, ZPOOL_CONFIG_L2CACHE, nvroot, 0); 141e14bb325SJeff Bonwick show_vdev_stats(NULL, ZPOOL_CONFIG_SPARES, nvroot, 0); 142e14bb325SJeff Bonwick 143e14bb325SJeff Bonwick nvlist_free(config); 144fa9e4066Sahrens } 1450e60744cSPavel Zakharov 1460e60744cSPavel Zakharov /* 1470e60744cSPavel Zakharov * Sets given global variable in libzpool to given unsigned 32-bit value. 1480e60744cSPavel Zakharov * arg: "<variable>=<value>" 1490e60744cSPavel Zakharov */ 1500e60744cSPavel Zakharov int 1510e60744cSPavel Zakharov set_global_var(char *arg) 1520e60744cSPavel Zakharov { 1530e60744cSPavel Zakharov void *zpoolhdl; 1540e60744cSPavel Zakharov char *varname = arg, *varval; 1550e60744cSPavel Zakharov u_longlong_t val; 1560e60744cSPavel Zakharov 1570e60744cSPavel Zakharov #ifndef _LITTLE_ENDIAN 1580e60744cSPavel Zakharov /* 1590e60744cSPavel Zakharov * On big endian systems changing a 64-bit variable would set the high 1600e60744cSPavel Zakharov * 32 bits instead of the low 32 bits, which could cause unexpected 1610e60744cSPavel Zakharov * results. 1620e60744cSPavel Zakharov */ 1630e60744cSPavel Zakharov fprintf(stderr, "Setting global variables is only supported on " 1640e60744cSPavel Zakharov "little-endian systems\n", varname); 1650e60744cSPavel Zakharov return (ENOTSUP); 1660e60744cSPavel Zakharov #endif 1670e60744cSPavel Zakharov if ((varval = strchr(arg, '=')) != NULL) { 1680e60744cSPavel Zakharov *varval = '\0'; 1690e60744cSPavel Zakharov varval++; 1700e60744cSPavel Zakharov val = strtoull(varval, NULL, 0); 1710e60744cSPavel Zakharov if (val > UINT32_MAX) { 1720e60744cSPavel Zakharov fprintf(stderr, "Value for global variable '%s' must " 1730e60744cSPavel Zakharov "be a 32-bit unsigned integer\n", varname); 1740e60744cSPavel Zakharov return (EOVERFLOW); 1750e60744cSPavel Zakharov } 1760e60744cSPavel Zakharov } else { 1770e60744cSPavel Zakharov return (EINVAL); 1780e60744cSPavel Zakharov } 1790e60744cSPavel Zakharov 1800e60744cSPavel Zakharov zpoolhdl = dlopen("libzpool.so", RTLD_LAZY); 1810e60744cSPavel Zakharov if (zpoolhdl != NULL) { 1820e60744cSPavel Zakharov uint32_t *var; 1830e60744cSPavel Zakharov var = dlsym(zpoolhdl, varname); 1840e60744cSPavel Zakharov if (var == NULL) { 1850e60744cSPavel Zakharov fprintf(stderr, "Global variable '%s' does not exist " 1860e60744cSPavel Zakharov "in libzpool.so\n", varname); 1870e60744cSPavel Zakharov return (EINVAL); 1880e60744cSPavel Zakharov } 1890e60744cSPavel Zakharov *var = (uint32_t)val; 1900e60744cSPavel Zakharov 1910e60744cSPavel Zakharov dlclose(zpoolhdl); 1920e60744cSPavel Zakharov } else { 1930e60744cSPavel Zakharov fprintf(stderr, "Failed to open libzpool.so to set global " 1940e60744cSPavel Zakharov "variable\n"); 1950e60744cSPavel Zakharov return (EIO); 1960e60744cSPavel Zakharov } 1970e60744cSPavel Zakharov 1980e60744cSPavel Zakharov return (0); 1990e60744cSPavel Zakharov } 200