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 /* 221ab7f2deSmaybee * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #include <mdb/mdb_ctf.h> 27fa9e4066Sahrens #include <sys/zfs_context.h> 28fa9e4066Sahrens #include <sys/mdb_modapi.h> 29fa9e4066Sahrens #include <sys/dbuf.h> 30fa9e4066Sahrens #include <sys/dmu_objset.h> 31fa9e4066Sahrens #include <sys/dsl_dir.h> 32fa9e4066Sahrens #include <sys/dsl_pool.h> 33fa9e4066Sahrens #include <sys/metaslab_impl.h> 34fa9e4066Sahrens #include <sys/space_map.h> 35fa9e4066Sahrens #include <sys/list.h> 36fa9e4066Sahrens #include <sys/spa_impl.h> 37fa9e4066Sahrens #include <sys/vdev_impl.h> 38fa9e4066Sahrens #include <sys/zio_compress.h> 39fa9e4066Sahrens 40fa9e4066Sahrens #ifndef _KERNEL 41fa9e4066Sahrens #include "../genunix/list.h" 42fa9e4066Sahrens #endif 43fa9e4066Sahrens 44fa9e4066Sahrens #ifdef _KERNEL 45fa9e4066Sahrens #define ZFS_OBJ_NAME "zfs" 46fa9e4066Sahrens #else 47fa9e4066Sahrens #define ZFS_OBJ_NAME "libzpool.so.1" 48fa9e4066Sahrens #endif 49fa9e4066Sahrens 50fa9e4066Sahrens static char * 51fa9e4066Sahrens local_strdup(const char *s) 52fa9e4066Sahrens { 53fa9e4066Sahrens char *s1 = mdb_alloc(strlen(s) + 1, UM_SLEEP); 54fa9e4066Sahrens 55fa9e4066Sahrens (void) strcpy(s1, s); 56fa9e4066Sahrens return (s1); 57fa9e4066Sahrens } 58fa9e4066Sahrens 59fa9e4066Sahrens static int 60fa9e4066Sahrens getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp, 61fa9e4066Sahrens const char *member, int len, void *buf) 62fa9e4066Sahrens { 63fa9e4066Sahrens mdb_ctf_id_t id; 64fa9e4066Sahrens ulong_t off; 65fa9e4066Sahrens char name[64]; 66fa9e4066Sahrens 67fa9e4066Sahrens if (idp == NULL) { 68fa9e4066Sahrens if (mdb_ctf_lookup_by_name(type, &id) == -1) { 69fa9e4066Sahrens mdb_warn("couldn't find type %s", type); 70fa9e4066Sahrens return (DCMD_ERR); 71fa9e4066Sahrens } 72fa9e4066Sahrens idp = &id; 73fa9e4066Sahrens } else { 74fa9e4066Sahrens type = name; 75fa9e4066Sahrens mdb_ctf_type_name(*idp, name, sizeof (name)); 76fa9e4066Sahrens } 77fa9e4066Sahrens 78fa9e4066Sahrens if (mdb_ctf_offsetof(*idp, member, &off) == -1) { 79fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, type); 80fa9e4066Sahrens return (DCMD_ERR); 81fa9e4066Sahrens } 82fa9e4066Sahrens if (off % 8 != 0) { 83fa9e4066Sahrens mdb_warn("member %s of type %s is unsupported bitfield", 84fa9e4066Sahrens member, type); 85fa9e4066Sahrens return (DCMD_ERR); 86fa9e4066Sahrens } 87fa9e4066Sahrens off /= 8; 88fa9e4066Sahrens 89fa9e4066Sahrens if (mdb_vread(buf, len, addr + off) == -1) { 90fa9e4066Sahrens mdb_warn("failed to read %s from %s at %p", 91fa9e4066Sahrens member, type, addr + off); 92fa9e4066Sahrens return (DCMD_ERR); 93fa9e4066Sahrens } 94fa9e4066Sahrens /* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */ 95fa9e4066Sahrens 96fa9e4066Sahrens return (0); 97fa9e4066Sahrens } 98fa9e4066Sahrens 99fa9e4066Sahrens #define GETMEMB(addr, type, member, dest) \ 100fa9e4066Sahrens getmember(addr, #type, NULL, #member, sizeof (dest), &(dest)) 101fa9e4066Sahrens 102fa9e4066Sahrens #define GETMEMBID(addr, ctfid, member, dest) \ 103fa9e4066Sahrens getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest)) 104fa9e4066Sahrens 105fa9e4066Sahrens static int 106fa9e4066Sahrens getrefcount(uintptr_t addr, mdb_ctf_id_t *id, 107fa9e4066Sahrens const char *member, uint64_t *rc) 108fa9e4066Sahrens { 109fa9e4066Sahrens static int gotid; 110fa9e4066Sahrens static mdb_ctf_id_t rc_id; 111fa9e4066Sahrens ulong_t off; 112fa9e4066Sahrens 113fa9e4066Sahrens if (!gotid) { 114fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 115fa9e4066Sahrens mdb_warn("couldn't find struct refcount"); 116fa9e4066Sahrens return (DCMD_ERR); 117fa9e4066Sahrens } 118fa9e4066Sahrens gotid = TRUE; 119fa9e4066Sahrens } 120fa9e4066Sahrens 121fa9e4066Sahrens if (mdb_ctf_offsetof(*id, member, &off) == -1) { 122fa9e4066Sahrens char name[64]; 123fa9e4066Sahrens mdb_ctf_type_name(*id, name, sizeof (name)); 124fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, name); 125fa9e4066Sahrens return (DCMD_ERR); 126fa9e4066Sahrens } 127fa9e4066Sahrens off /= 8; 128fa9e4066Sahrens 129fa9e4066Sahrens return (GETMEMBID(addr + off, &rc_id, rc_count, *rc)); 130fa9e4066Sahrens } 131fa9e4066Sahrens 132fa9e4066Sahrens static int 133fa9e4066Sahrens read_symbol(char *sym_name, void **bufp) 134fa9e4066Sahrens { 135fa9e4066Sahrens GElf_Sym sym; 136fa9e4066Sahrens 137fa9e4066Sahrens if (mdb_lookup_by_obj(MDB_TGT_OBJ_EVERY, sym_name, &sym)) { 138fa9e4066Sahrens mdb_warn("can't find symbol %s", sym_name); 139fa9e4066Sahrens return (DCMD_ERR); 140fa9e4066Sahrens } 141fa9e4066Sahrens 142fa9e4066Sahrens *bufp = mdb_alloc(sym.st_size, UM_SLEEP); 143fa9e4066Sahrens 144fa9e4066Sahrens if (mdb_vread(*bufp, sym.st_size, sym.st_value) == -1) { 145fa9e4066Sahrens mdb_warn("can't read data for symbol %s", sym_name); 146fa9e4066Sahrens mdb_free(*bufp, sym.st_size); 147fa9e4066Sahrens return (DCMD_ERR); 148fa9e4066Sahrens } 149fa9e4066Sahrens 150fa9e4066Sahrens return (DCMD_OK); 151fa9e4066Sahrens } 152fa9e4066Sahrens 153fa9e4066Sahrens static int verbose; 154fa9e4066Sahrens 155fa9e4066Sahrens static int 156fa9e4066Sahrens freelist_walk_init(mdb_walk_state_t *wsp) 157fa9e4066Sahrens { 158fa9e4066Sahrens if (wsp->walk_addr == NULL) { 159fa9e4066Sahrens mdb_warn("must supply starting address\n"); 160fa9e4066Sahrens return (WALK_ERR); 161fa9e4066Sahrens } 162fa9e4066Sahrens 163fa9e4066Sahrens wsp->walk_data = 0; /* Index into the freelist */ 164fa9e4066Sahrens return (WALK_NEXT); 165fa9e4066Sahrens } 166fa9e4066Sahrens 167fa9e4066Sahrens static int 168fa9e4066Sahrens freelist_walk_step(mdb_walk_state_t *wsp) 169fa9e4066Sahrens { 170fa9e4066Sahrens uint64_t entry; 171fa9e4066Sahrens uintptr_t number = (uintptr_t)wsp->walk_data; 1728053a263Sck153898 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1738053a263Sck153898 "INVALID", "INVALID", "INVALID", "INVALID" }; 174fa9e4066Sahrens int mapshift = SPA_MINBLOCKSHIFT; 175fa9e4066Sahrens 176fa9e4066Sahrens if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) { 177fa9e4066Sahrens mdb_warn("failed to read freelist entry %p", wsp->walk_addr); 178fa9e4066Sahrens return (WALK_DONE); 179fa9e4066Sahrens } 180fa9e4066Sahrens wsp->walk_addr += sizeof (entry); 181fa9e4066Sahrens wsp->walk_data = (void *)(number + 1); 182fa9e4066Sahrens 183fa9e4066Sahrens if (SM_DEBUG_DECODE(entry)) { 184fa9e4066Sahrens mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n", 185fa9e4066Sahrens number, 186fa9e4066Sahrens ddata[SM_DEBUG_ACTION_DECODE(entry)], 187fa9e4066Sahrens SM_DEBUG_TXG_DECODE(entry), 188fa9e4066Sahrens SM_DEBUG_SYNCPASS_DECODE(entry)); 189fa9e4066Sahrens } else { 190fa9e4066Sahrens mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c " 191fa9e4066Sahrens "size=%06llx", number, 192fa9e4066Sahrens SM_OFFSET_DECODE(entry) << mapshift, 193fa9e4066Sahrens (SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) << 194fa9e4066Sahrens mapshift, 195fa9e4066Sahrens SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 196fa9e4066Sahrens SM_RUN_DECODE(entry) << mapshift); 197fa9e4066Sahrens if (verbose) 198fa9e4066Sahrens mdb_printf(" (raw=%012llx)\n", entry); 199fa9e4066Sahrens mdb_printf("\n"); 200fa9e4066Sahrens } 201fa9e4066Sahrens return (WALK_NEXT); 202fa9e4066Sahrens } 203fa9e4066Sahrens 204fa9e4066Sahrens 205fa9e4066Sahrens static int 206fa9e4066Sahrens dataset_name(uintptr_t addr, char *buf) 207fa9e4066Sahrens { 208fa9e4066Sahrens static int gotid; 209fa9e4066Sahrens static mdb_ctf_id_t dd_id; 210fa9e4066Sahrens uintptr_t dd_parent; 211fa9e4066Sahrens char dd_myname[MAXNAMELEN]; 212fa9e4066Sahrens 213fa9e4066Sahrens if (!gotid) { 214fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dir", 215fa9e4066Sahrens &dd_id) == -1) { 216fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dir"); 217fa9e4066Sahrens return (DCMD_ERR); 218fa9e4066Sahrens } 219fa9e4066Sahrens gotid = TRUE; 220fa9e4066Sahrens } 221fa9e4066Sahrens if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) || 222fa9e4066Sahrens GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) { 223fa9e4066Sahrens return (DCMD_ERR); 224fa9e4066Sahrens } 225fa9e4066Sahrens 226fa9e4066Sahrens if (dd_parent) { 227fa9e4066Sahrens if (dataset_name(dd_parent, buf)) 228fa9e4066Sahrens return (DCMD_ERR); 229fa9e4066Sahrens strcat(buf, "/"); 230fa9e4066Sahrens } 231fa9e4066Sahrens 232fa9e4066Sahrens if (dd_myname[0]) 233fa9e4066Sahrens strcat(buf, dd_myname); 234fa9e4066Sahrens else 235fa9e4066Sahrens strcat(buf, "???"); 236fa9e4066Sahrens 237fa9e4066Sahrens return (0); 238fa9e4066Sahrens } 239fa9e4066Sahrens 240fa9e4066Sahrens static int 241fa9e4066Sahrens objset_name(uintptr_t addr, char *buf) 242fa9e4066Sahrens { 243fa9e4066Sahrens static int gotid; 244fa9e4066Sahrens static mdb_ctf_id_t osi_id, ds_id; 245fa9e4066Sahrens uintptr_t os_dsl_dataset; 246fa9e4066Sahrens char ds_snapname[MAXNAMELEN]; 247fa9e4066Sahrens uintptr_t ds_dir; 248fa9e4066Sahrens 249fa9e4066Sahrens buf[0] = '\0'; 250fa9e4066Sahrens 251fa9e4066Sahrens if (!gotid) { 252fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct objset_impl", 253fa9e4066Sahrens &osi_id) == -1) { 254fa9e4066Sahrens mdb_warn("couldn't find struct objset_impl"); 255fa9e4066Sahrens return (DCMD_ERR); 256fa9e4066Sahrens } 257fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dataset", 258fa9e4066Sahrens &ds_id) == -1) { 259fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dataset"); 260fa9e4066Sahrens return (DCMD_ERR); 261fa9e4066Sahrens } 262fa9e4066Sahrens 263fa9e4066Sahrens gotid = TRUE; 264fa9e4066Sahrens } 265fa9e4066Sahrens 266fa9e4066Sahrens if (GETMEMBID(addr, &osi_id, os_dsl_dataset, os_dsl_dataset)) 267fa9e4066Sahrens return (DCMD_ERR); 268fa9e4066Sahrens 269fa9e4066Sahrens if (os_dsl_dataset == 0) { 270fa9e4066Sahrens strcat(buf, "mos"); 271fa9e4066Sahrens return (0); 272fa9e4066Sahrens } 273fa9e4066Sahrens 274fa9e4066Sahrens if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) || 275fa9e4066Sahrens GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) { 276fa9e4066Sahrens return (DCMD_ERR); 277fa9e4066Sahrens } 278fa9e4066Sahrens 279fa9e4066Sahrens if (ds_dir && dataset_name(ds_dir, buf)) 280fa9e4066Sahrens return (DCMD_ERR); 281fa9e4066Sahrens 282fa9e4066Sahrens if (ds_snapname[0]) { 283fa9e4066Sahrens strcat(buf, "@"); 284fa9e4066Sahrens strcat(buf, ds_snapname); 285fa9e4066Sahrens } 286fa9e4066Sahrens return (0); 287fa9e4066Sahrens } 288fa9e4066Sahrens 289fa9e4066Sahrens static void 290fa9e4066Sahrens enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val, 291fa9e4066Sahrens const char *prefix) 292fa9e4066Sahrens { 293fa9e4066Sahrens const char *cp; 294fa9e4066Sahrens size_t len = strlen(prefix); 295fa9e4066Sahrens 296fa9e4066Sahrens if ((cp = mdb_ctf_enum_name(id, val)) != NULL) { 297fa9e4066Sahrens if (strncmp(cp, prefix, len) == 0) 298fa9e4066Sahrens cp += len; 299fa9e4066Sahrens (void) strncpy(out, cp, size); 300fa9e4066Sahrens } else { 301fa9e4066Sahrens mdb_snprintf(out, size, "? (%d)", val); 302fa9e4066Sahrens } 303fa9e4066Sahrens } 304fa9e4066Sahrens 305fa9e4066Sahrens /* ARGSUSED */ 306fa9e4066Sahrens static int 307fa9e4066Sahrens zio_pipeline(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 308fa9e4066Sahrens { 309fa9e4066Sahrens mdb_ctf_id_t pipe_enum; 310fa9e4066Sahrens int i; 311fa9e4066Sahrens char stage[1024]; 312fa9e4066Sahrens 313fa9e4066Sahrens if (mdb_ctf_lookup_by_name("enum zio_stage", &pipe_enum) == -1) { 314fa9e4066Sahrens mdb_warn("Could not find enum zio_stage"); 315fa9e4066Sahrens return (DCMD_ERR); 316fa9e4066Sahrens } 317fa9e4066Sahrens 318fa9e4066Sahrens for (i = 0; i < 32; i++) { 319fa9e4066Sahrens if (addr & (1U << i)) { 320fa9e4066Sahrens enum_lookup(stage, sizeof (stage), pipe_enum, i, 321fa9e4066Sahrens "ZIO_STAGE_"); 322fa9e4066Sahrens mdb_printf(" %s\n", stage); 323fa9e4066Sahrens } 324fa9e4066Sahrens } 325fa9e4066Sahrens 326fa9e4066Sahrens return (DCMD_OK); 327fa9e4066Sahrens } 328fa9e4066Sahrens 329fa9e4066Sahrens /* ARGSUSED */ 330fa9e4066Sahrens static int 331614409b5Sahrens zfs_params(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 332614409b5Sahrens { 333614409b5Sahrens /* 334614409b5Sahrens * This table can be approximately generated by running: 335614409b5Sahrens * egrep "^[a-z0-9_]+ [a-z0-9_]+( =.*)?;" *.c | cut -d ' ' -f 2 336614409b5Sahrens */ 337614409b5Sahrens static const char *params[] = { 338614409b5Sahrens "arc_reduce_dnlc_percent", 339614409b5Sahrens "zfs_arc_max", 340614409b5Sahrens "zfs_arc_min", 34149e3519aSmaybee "arc_shrink_shift", 342614409b5Sahrens "zfs_mdcomp_disable", 343614409b5Sahrens "zfs_prefetch_disable", 344614409b5Sahrens "zfetch_max_streams", 345614409b5Sahrens "zfetch_min_sec_reap", 346614409b5Sahrens "zfetch_block_cap", 347614409b5Sahrens "zfetch_array_rd_sz", 348614409b5Sahrens "zfs_default_bs", 349614409b5Sahrens "zfs_default_ibs", 350614409b5Sahrens "metaslab_aliquot", 351614409b5Sahrens "reference_tracking_enable", 352614409b5Sahrens "reference_history", 353614409b5Sahrens "zio_taskq_threads", 354614409b5Sahrens "spa_max_replication_override", 355614409b5Sahrens "spa_mode", 356614409b5Sahrens "zfs_flags", 3571ab7f2deSmaybee "zfs_txg_synctime", 3581ab7f2deSmaybee "zfs_txg_timeout", 3591ab7f2deSmaybee "zfs_write_limit_min", 3601ab7f2deSmaybee "zfs_write_limit_max", 3611ab7f2deSmaybee "zfs_write_limit_shift", 3621ab7f2deSmaybee "zfs_write_limit_override", 3631ab7f2deSmaybee "zfs_no_write_throttle", 364614409b5Sahrens "zfs_vdev_cache_max", 365614409b5Sahrens "zfs_vdev_cache_size", 366614409b5Sahrens "zfs_vdev_cache_bshift", 367614409b5Sahrens "vdev_mirror_shift", 368614409b5Sahrens "zfs_vdev_max_pending", 369614409b5Sahrens "zfs_vdev_min_pending", 370614409b5Sahrens "zfs_scrub_limit", 371614409b5Sahrens "zfs_vdev_time_shift", 372614409b5Sahrens "zfs_vdev_ramp_rate", 373614409b5Sahrens "zfs_vdev_aggregation_limit", 374614409b5Sahrens "fzap_default_block_shift", 375614409b5Sahrens "zfs_immediate_write_sz", 376614409b5Sahrens "zfs_read_chunk_size", 377614409b5Sahrens "zil_disable", 378614409b5Sahrens "zfs_nocacheflush", 3791ab7f2deSmaybee "metaslab_gang_bang", 380614409b5Sahrens "zio_injection_enabled", 381614409b5Sahrens "zvol_immediate_write_sz", 382614409b5Sahrens }; 383614409b5Sahrens int i; 384614409b5Sahrens 385614409b5Sahrens for (i = 0; i < sizeof (params) / sizeof (params[0]); i++) { 386614409b5Sahrens int sz; 387614409b5Sahrens uint64_t val64; 388614409b5Sahrens uint32_t *val32p = (uint32_t *)&val64; 389614409b5Sahrens 390614409b5Sahrens sz = mdb_readvar(&val64, params[i]); 391614409b5Sahrens if (sz == 4) { 392614409b5Sahrens mdb_printf("%s = 0x%x\n", params[i], *val32p); 393614409b5Sahrens } else if (sz == 8) { 394614409b5Sahrens mdb_printf("%s = 0x%llx\n", params[i], val64); 395614409b5Sahrens } else { 396614409b5Sahrens mdb_warn("variable %s not found", params[i]); 397614409b5Sahrens } 398614409b5Sahrens } 399614409b5Sahrens 400614409b5Sahrens return (DCMD_OK); 401614409b5Sahrens } 402614409b5Sahrens 403614409b5Sahrens /* ARGSUSED */ 404614409b5Sahrens static int 405fa9e4066Sahrens blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 406fa9e4066Sahrens { 407fa9e4066Sahrens blkptr_t bp; 408fa9e4066Sahrens dmu_object_type_info_t *doti; 409fa9e4066Sahrens zio_compress_info_t *zct; 410fa9e4066Sahrens zio_checksum_info_t *zci; 411fa9e4066Sahrens int i; 412fa9e4066Sahrens char buf[MAXPATHLEN]; 413fa9e4066Sahrens 414fa9e4066Sahrens if (mdb_vread(&bp, sizeof (blkptr_t), addr) == -1) { 415fa9e4066Sahrens mdb_warn("failed to read blkptr_t"); 416fa9e4066Sahrens return (DCMD_ERR); 417fa9e4066Sahrens } 418fa9e4066Sahrens 419fa9e4066Sahrens if (read_symbol("dmu_ot", (void **)&doti) != DCMD_OK) 420fa9e4066Sahrens return (DCMD_ERR); 421fa9e4066Sahrens for (i = 0; i < DMU_OT_NUMTYPES; i++) { 422fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)doti[i].ot_name); 423fa9e4066Sahrens doti[i].ot_name = local_strdup(buf); 424fa9e4066Sahrens } 425fa9e4066Sahrens 426fa9e4066Sahrens if (read_symbol("zio_checksum_table", (void **)&zci) != DCMD_OK) 427fa9e4066Sahrens return (DCMD_ERR); 428fa9e4066Sahrens for (i = 0; i < ZIO_CHECKSUM_FUNCTIONS; i++) { 429fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)zci[i].ci_name); 430fa9e4066Sahrens zci[i].ci_name = local_strdup(buf); 431fa9e4066Sahrens } 432fa9e4066Sahrens 433fa9e4066Sahrens if (read_symbol("zio_compress_table", (void **)&zct) != DCMD_OK) 434fa9e4066Sahrens return (DCMD_ERR); 435fa9e4066Sahrens for (i = 0; i < ZIO_COMPRESS_FUNCTIONS; i++) { 436fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)zct[i].ci_name); 437fa9e4066Sahrens zct[i].ci_name = local_strdup(buf); 438fa9e4066Sahrens } 439fa9e4066Sahrens 44044cd46caSbillm /* 44144cd46caSbillm * Super-ick warning: This code is also duplicated in 44244cd46caSbillm * cmd/zdb.c . Yeah, I hate code replication, too. 44344cd46caSbillm */ 44444cd46caSbillm for (i = 0; i < BP_GET_NDVAS(&bp); i++) { 445ecc2d604Sbonwick dva_t *dva = &bp.blk_dva[i]; 44644cd46caSbillm 44744cd46caSbillm mdb_printf("DVA[%d]: vdev_id %lld / %llx\n", i, 44844cd46caSbillm DVA_GET_VDEV(dva), DVA_GET_OFFSET(dva)); 44944cd46caSbillm mdb_printf("DVA[%d]: GANG: %-5s GRID: %04x\t" 45044cd46caSbillm "ASIZE: %llx\n", i, DVA_GET_GANG(dva) ? "TRUE" : "FALSE", 45144cd46caSbillm DVA_GET_GRID(dva), DVA_GET_ASIZE(dva)); 45244cd46caSbillm mdb_printf("DVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", i, 45344cd46caSbillm DVA_GET_VDEV(dva), DVA_GET_OFFSET(dva), BP_GET_PSIZE(&bp), 45444cd46caSbillm BP_SHOULD_BYTESWAP(&bp) ? "e" : "", 45544cd46caSbillm !DVA_GET_GANG(dva) && BP_GET_LEVEL(&bp) != 0 ? "i" : "", 45644cd46caSbillm DVA_GET_GANG(dva) ? "g" : "", 45744cd46caSbillm BP_GET_COMPRESS(&bp) != 0 ? "d" : ""); 458fa9e4066Sahrens } 459fa9e4066Sahrens mdb_printf("LSIZE: %-16llx\t\tPSIZE: %llx\n", 460fa9e4066Sahrens BP_GET_LSIZE(&bp), BP_GET_PSIZE(&bp)); 46144cd46caSbillm mdb_printf("ENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 462fa9e4066Sahrens BP_GET_BYTEORDER(&bp) ? "LITTLE" : "BIG", 463fa9e4066Sahrens doti[BP_GET_TYPE(&bp)].ot_name); 464fa9e4066Sahrens mdb_printf("BIRTH: %-16llx LEVEL: %-2d\tFILL: %llx\n", 465fa9e4066Sahrens bp.blk_birth, BP_GET_LEVEL(&bp), bp.blk_fill); 466fa9e4066Sahrens mdb_printf("CKFUNC: %-16s\t\tCOMP: %s\n", 467fa9e4066Sahrens zci[BP_GET_CHECKSUM(&bp)].ci_name, 468fa9e4066Sahrens zct[BP_GET_COMPRESS(&bp)].ci_name); 469fa9e4066Sahrens mdb_printf("CKSUM: %llx:%llx:%llx:%llx\n", 470fa9e4066Sahrens bp.blk_cksum.zc_word[0], 471fa9e4066Sahrens bp.blk_cksum.zc_word[1], 472fa9e4066Sahrens bp.blk_cksum.zc_word[2], 473fa9e4066Sahrens bp.blk_cksum.zc_word[3]); 474fa9e4066Sahrens 475fa9e4066Sahrens return (DCMD_OK); 476fa9e4066Sahrens } 477fa9e4066Sahrens 478fa9e4066Sahrens /* ARGSUSED */ 479fa9e4066Sahrens static int 480fa9e4066Sahrens dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 481fa9e4066Sahrens { 482fa9e4066Sahrens mdb_ctf_id_t id; 483fa9e4066Sahrens dmu_buf_t db; 484fa9e4066Sahrens uintptr_t objset; 485fa9e4066Sahrens uint8_t level; 486fa9e4066Sahrens uint64_t blkid; 487fa9e4066Sahrens uint64_t holds; 488fa9e4066Sahrens char objectname[32]; 489fa9e4066Sahrens char blkidname[32]; 490fa9e4066Sahrens char path[MAXNAMELEN]; 491fa9e4066Sahrens 492fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) { 493fa9e4066Sahrens mdb_printf(" addr object lvl blkid holds os\n"); 494fa9e4066Sahrens } 495fa9e4066Sahrens 496fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &id) == -1) { 497fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 498fa9e4066Sahrens return (DCMD_ERR); 499fa9e4066Sahrens } 500fa9e4066Sahrens 501fa9e4066Sahrens if (GETMEMBID(addr, &id, db_objset, objset) || 502fa9e4066Sahrens GETMEMBID(addr, &id, db, db) || 503fa9e4066Sahrens GETMEMBID(addr, &id, db_level, level) || 504fa9e4066Sahrens GETMEMBID(addr, &id, db_blkid, blkid)) { 505fa9e4066Sahrens return (WALK_ERR); 506fa9e4066Sahrens } 507fa9e4066Sahrens 508fa9e4066Sahrens if (getrefcount(addr, &id, "db_holds", &holds)) { 509fa9e4066Sahrens return (WALK_ERR); 510fa9e4066Sahrens } 511fa9e4066Sahrens 512fa9e4066Sahrens if (db.db_object == DMU_META_DNODE_OBJECT) 513fa9e4066Sahrens (void) strcpy(objectname, "mdn"); 514fa9e4066Sahrens else 515fa9e4066Sahrens (void) mdb_snprintf(objectname, sizeof (objectname), "%llx", 516fa9e4066Sahrens (u_longlong_t)db.db_object); 517fa9e4066Sahrens 518fa9e4066Sahrens if (blkid == DB_BONUS_BLKID) 519fa9e4066Sahrens (void) strcpy(blkidname, "bonus"); 520fa9e4066Sahrens else 521fa9e4066Sahrens (void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx", 522fa9e4066Sahrens (u_longlong_t)blkid); 523fa9e4066Sahrens 524fa9e4066Sahrens if (objset_name(objset, path)) { 525fa9e4066Sahrens return (WALK_ERR); 526fa9e4066Sahrens } 527fa9e4066Sahrens 528fa9e4066Sahrens mdb_printf("%p %8s %1u %9s %2llu %s\n", 529fa9e4066Sahrens addr, objectname, level, blkidname, holds, path); 530fa9e4066Sahrens 531fa9e4066Sahrens return (DCMD_OK); 532fa9e4066Sahrens } 533fa9e4066Sahrens 534fa9e4066Sahrens /* ARGSUSED */ 535fa9e4066Sahrens static int 536fa9e4066Sahrens dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 537fa9e4066Sahrens { 538fa9e4066Sahrens #define HISTOSZ 32 539fa9e4066Sahrens uintptr_t dbp; 540fa9e4066Sahrens dmu_buf_impl_t db; 541fa9e4066Sahrens dbuf_hash_table_t ht; 542fa9e4066Sahrens uint64_t bucket, ndbufs; 543fa9e4066Sahrens uint64_t histo[HISTOSZ]; 544fa9e4066Sahrens uint64_t histo2[HISTOSZ]; 545fa9e4066Sahrens int i, maxidx; 546fa9e4066Sahrens 547fa9e4066Sahrens if (mdb_readvar(&ht, "dbuf_hash_table") == -1) { 548fa9e4066Sahrens mdb_warn("failed to read 'dbuf_hash_table'"); 549fa9e4066Sahrens return (DCMD_ERR); 550fa9e4066Sahrens } 551fa9e4066Sahrens 552fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) { 553fa9e4066Sahrens histo[i] = 0; 554fa9e4066Sahrens histo2[i] = 0; 555fa9e4066Sahrens } 556fa9e4066Sahrens 557fa9e4066Sahrens ndbufs = 0; 558fa9e4066Sahrens for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) { 559fa9e4066Sahrens int len; 560fa9e4066Sahrens 561fa9e4066Sahrens if (mdb_vread(&dbp, sizeof (void *), 562fa9e4066Sahrens (uintptr_t)(ht.hash_table+bucket)) == -1) { 563fa9e4066Sahrens mdb_warn("failed to read hash bucket %u at %p", 564fa9e4066Sahrens bucket, ht.hash_table+bucket); 565fa9e4066Sahrens return (DCMD_ERR); 566fa9e4066Sahrens } 567fa9e4066Sahrens 568fa9e4066Sahrens len = 0; 569fa9e4066Sahrens while (dbp != 0) { 570fa9e4066Sahrens if (mdb_vread(&db, sizeof (dmu_buf_impl_t), 571fa9e4066Sahrens dbp) == -1) { 572fa9e4066Sahrens mdb_warn("failed to read dbuf at %p", dbp); 573fa9e4066Sahrens return (DCMD_ERR); 574fa9e4066Sahrens } 575fa9e4066Sahrens dbp = (uintptr_t)db.db_hash_next; 576fa9e4066Sahrens for (i = MIN(len, HISTOSZ - 1); i >= 0; i--) 577fa9e4066Sahrens histo2[i]++; 578fa9e4066Sahrens len++; 579fa9e4066Sahrens ndbufs++; 580fa9e4066Sahrens } 581fa9e4066Sahrens 582fa9e4066Sahrens if (len >= HISTOSZ) 583fa9e4066Sahrens len = HISTOSZ-1; 584fa9e4066Sahrens histo[len]++; 585fa9e4066Sahrens } 586fa9e4066Sahrens 587fa9e4066Sahrens mdb_printf("hash table has %llu buckets, %llu dbufs " 588fa9e4066Sahrens "(avg %llu buckets/dbuf)\n", 589fa9e4066Sahrens ht.hash_table_mask+1, ndbufs, 590fa9e4066Sahrens (ht.hash_table_mask+1)/ndbufs); 591fa9e4066Sahrens 592fa9e4066Sahrens mdb_printf("\n"); 593fa9e4066Sahrens maxidx = 0; 594fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 595fa9e4066Sahrens if (histo[i] > 0) 596fa9e4066Sahrens maxidx = i; 597fa9e4066Sahrens mdb_printf("hash chain length number of buckets\n"); 598fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 599fa9e4066Sahrens mdb_printf("%u %llu\n", i, histo[i]); 600fa9e4066Sahrens 601fa9e4066Sahrens mdb_printf("\n"); 602fa9e4066Sahrens maxidx = 0; 603fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 604fa9e4066Sahrens if (histo2[i] > 0) 605fa9e4066Sahrens maxidx = i; 606fa9e4066Sahrens mdb_printf("hash chain depth number of dbufs\n"); 607fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 608fa9e4066Sahrens mdb_printf("%u or more %llu %llu%%\n", 609fa9e4066Sahrens i, histo2[i], histo2[i]*100/ndbufs); 610fa9e4066Sahrens 611fa9e4066Sahrens 612fa9e4066Sahrens return (DCMD_OK); 613fa9e4066Sahrens } 614fa9e4066Sahrens 615fa9e4066Sahrens typedef struct dbufs_data { 616fa9e4066Sahrens mdb_ctf_id_t id; 617fa9e4066Sahrens uint64_t objset; 618fa9e4066Sahrens uint64_t object; 619fa9e4066Sahrens uint64_t level; 620fa9e4066Sahrens uint64_t blkid; 621fa9e4066Sahrens char *osname; 622fa9e4066Sahrens } dbufs_data_t; 623fa9e4066Sahrens 624fa9e4066Sahrens #define DBUFS_UNSET (0xbaddcafedeadbeefULL) 625fa9e4066Sahrens 626fa9e4066Sahrens /* ARGSUSED */ 627fa9e4066Sahrens static int 628fa9e4066Sahrens dbufs_cb(uintptr_t addr, const void *unknown, void *arg) 629fa9e4066Sahrens { 630fa9e4066Sahrens dbufs_data_t *data = arg; 631fa9e4066Sahrens uintptr_t objset; 632fa9e4066Sahrens dmu_buf_t db; 633fa9e4066Sahrens uint8_t level; 634fa9e4066Sahrens uint64_t blkid; 635fa9e4066Sahrens char osname[MAXNAMELEN]; 636fa9e4066Sahrens 637fa9e4066Sahrens if (GETMEMBID(addr, &data->id, db_objset, objset) || 638fa9e4066Sahrens GETMEMBID(addr, &data->id, db, db) || 639fa9e4066Sahrens GETMEMBID(addr, &data->id, db_level, level) || 640fa9e4066Sahrens GETMEMBID(addr, &data->id, db_blkid, blkid)) { 641fa9e4066Sahrens return (WALK_ERR); 642fa9e4066Sahrens } 643fa9e4066Sahrens 644fa9e4066Sahrens if ((data->objset == DBUFS_UNSET || data->objset == objset) && 645fa9e4066Sahrens (data->osname == NULL || (objset_name(objset, osname) == 0 && 646fa9e4066Sahrens strcmp(data->osname, osname) == 0)) && 647fa9e4066Sahrens (data->object == DBUFS_UNSET || data->object == db.db_object) && 648fa9e4066Sahrens (data->level == DBUFS_UNSET || data->level == level) && 649fa9e4066Sahrens (data->blkid == DBUFS_UNSET || data->blkid == blkid)) { 650fa9e4066Sahrens mdb_printf("%#lr\n", addr); 651fa9e4066Sahrens } 652fa9e4066Sahrens return (WALK_NEXT); 653fa9e4066Sahrens } 654fa9e4066Sahrens 655fa9e4066Sahrens /* ARGSUSED */ 656fa9e4066Sahrens static int 657fa9e4066Sahrens dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 658fa9e4066Sahrens { 659fa9e4066Sahrens dbufs_data_t data; 660fa9e4066Sahrens char *object = NULL; 661fa9e4066Sahrens char *blkid = NULL; 662fa9e4066Sahrens 663fa9e4066Sahrens data.objset = data.object = data.level = data.blkid = DBUFS_UNSET; 664fa9e4066Sahrens data.osname = NULL; 665fa9e4066Sahrens 666fa9e4066Sahrens if (mdb_getopts(argc, argv, 667fa9e4066Sahrens 'O', MDB_OPT_UINT64, &data.objset, 668fa9e4066Sahrens 'n', MDB_OPT_STR, &data.osname, 669fa9e4066Sahrens 'o', MDB_OPT_STR, &object, 670fa9e4066Sahrens 'l', MDB_OPT_UINT64, &data.level, 671fa9e4066Sahrens 'b', MDB_OPT_STR, &blkid) != argc) { 672fa9e4066Sahrens return (DCMD_USAGE); 673fa9e4066Sahrens } 674fa9e4066Sahrens 675fa9e4066Sahrens if (object) { 676fa9e4066Sahrens if (strcmp(object, "mdn") == 0) { 677fa9e4066Sahrens data.object = DMU_META_DNODE_OBJECT; 678fa9e4066Sahrens } else { 679fa9e4066Sahrens data.object = mdb_strtoull(object); 680fa9e4066Sahrens } 681fa9e4066Sahrens } 682fa9e4066Sahrens 683fa9e4066Sahrens if (blkid) { 684fa9e4066Sahrens if (strcmp(blkid, "bonus") == 0) { 685fa9e4066Sahrens data.blkid = DB_BONUS_BLKID; 686fa9e4066Sahrens } else { 687fa9e4066Sahrens data.blkid = mdb_strtoull(blkid); 688fa9e4066Sahrens } 689fa9e4066Sahrens } 690fa9e4066Sahrens 691fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &data.id) == -1) { 692fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 693fa9e4066Sahrens return (DCMD_ERR); 694fa9e4066Sahrens } 695fa9e4066Sahrens 6965f5f7a6fSahrens if (mdb_walk("dmu_buf_impl_t", dbufs_cb, &data) != 0) { 697fa9e4066Sahrens mdb_warn("can't walk dbufs"); 698fa9e4066Sahrens return (DCMD_ERR); 699fa9e4066Sahrens } 700fa9e4066Sahrens 701fa9e4066Sahrens return (DCMD_OK); 702fa9e4066Sahrens } 703fa9e4066Sahrens 704fa9e4066Sahrens typedef struct abuf_find_data { 705fa9e4066Sahrens dva_t dva; 706fa9e4066Sahrens mdb_ctf_id_t id; 707fa9e4066Sahrens } abuf_find_data_t; 708fa9e4066Sahrens 709fa9e4066Sahrens /* ARGSUSED */ 710fa9e4066Sahrens static int 711fa9e4066Sahrens abuf_find_cb(uintptr_t addr, const void *unknown, void *arg) 712fa9e4066Sahrens { 713fa9e4066Sahrens abuf_find_data_t *data = arg; 714fa9e4066Sahrens dva_t dva; 715fa9e4066Sahrens 716fa9e4066Sahrens if (GETMEMBID(addr, &data->id, b_dva, dva)) { 717fa9e4066Sahrens return (WALK_ERR); 718fa9e4066Sahrens } 719fa9e4066Sahrens 720fa9e4066Sahrens if (dva.dva_word[0] == data->dva.dva_word[0] && 721fa9e4066Sahrens dva.dva_word[1] == data->dva.dva_word[1]) { 722fa9e4066Sahrens mdb_printf("%#lr\n", addr); 723fa9e4066Sahrens } 724fa9e4066Sahrens return (WALK_NEXT); 725fa9e4066Sahrens } 726fa9e4066Sahrens 727fa9e4066Sahrens /* ARGSUSED */ 728fa9e4066Sahrens static int 729fa9e4066Sahrens abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 730fa9e4066Sahrens { 731fa9e4066Sahrens abuf_find_data_t data; 732fa9e4066Sahrens GElf_Sym sym; 733fa9e4066Sahrens int i; 734fa9e4066Sahrens const char *syms[] = { 735a2eea2e1Sahrens "ARC_mru", 736a2eea2e1Sahrens "ARC_mru_ghost", 737a2eea2e1Sahrens "ARC_mfu", 738a2eea2e1Sahrens "ARC_mfu_ghost", 739fa9e4066Sahrens }; 740fa9e4066Sahrens 741fa9e4066Sahrens if (argc != 2) 742fa9e4066Sahrens return (DCMD_USAGE); 743fa9e4066Sahrens 744fa9e4066Sahrens for (i = 0; i < 2; i ++) { 745fa9e4066Sahrens switch (argv[i].a_type) { 746fa9e4066Sahrens case MDB_TYPE_STRING: 747fa9e4066Sahrens data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str); 748fa9e4066Sahrens break; 749fa9e4066Sahrens case MDB_TYPE_IMMEDIATE: 750fa9e4066Sahrens data.dva.dva_word[i] = argv[i].a_un.a_val; 751fa9e4066Sahrens break; 752fa9e4066Sahrens default: 753fa9e4066Sahrens return (DCMD_USAGE); 754fa9e4066Sahrens } 755fa9e4066Sahrens } 756fa9e4066Sahrens 757fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct arc_buf_hdr", &data.id) == -1) { 758fa9e4066Sahrens mdb_warn("couldn't find struct arc_buf_hdr"); 759fa9e4066Sahrens return (DCMD_ERR); 760fa9e4066Sahrens } 761fa9e4066Sahrens 762fa9e4066Sahrens for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) { 763fa9e4066Sahrens if (mdb_lookup_by_name(syms[i], &sym)) { 764fa9e4066Sahrens mdb_warn("can't find symbol %s", syms[i]); 765fa9e4066Sahrens return (DCMD_ERR); 766fa9e4066Sahrens } 767fa9e4066Sahrens 768fa9e4066Sahrens if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) { 769fa9e4066Sahrens mdb_warn("can't walk %s", syms[i]); 770fa9e4066Sahrens return (DCMD_ERR); 771fa9e4066Sahrens } 772fa9e4066Sahrens } 773fa9e4066Sahrens 774fa9e4066Sahrens return (DCMD_OK); 775fa9e4066Sahrens } 776fa9e4066Sahrens 77744cb6abcSbmc /*ARGSUSED*/ 77844cb6abcSbmc static int 77944cb6abcSbmc arc_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 78044cb6abcSbmc { 78144cb6abcSbmc kstat_named_t *stats; 78244cb6abcSbmc GElf_Sym sym; 78391ebeef5Sahrens int nstats, i; 78444cb6abcSbmc uint_t opt_a = FALSE; 78591ebeef5Sahrens uint_t opt_b = FALSE; 78691ebeef5Sahrens uint_t shift = 0; 78791ebeef5Sahrens const char *suffix; 78844cb6abcSbmc 78991ebeef5Sahrens static const char *bytestats[] = { 79091ebeef5Sahrens "p", "c", "c_min", "c_max", "size", NULL 79191ebeef5Sahrens }; 79291ebeef5Sahrens 79391ebeef5Sahrens static const char *extras[] = { 79491ebeef5Sahrens "arc_no_grow", "arc_tempreserve", 79591ebeef5Sahrens "arc_meta_used", "arc_meta_limit", "arc_meta_max", 79691ebeef5Sahrens NULL 79744cb6abcSbmc }; 79844cb6abcSbmc 79944cb6abcSbmc if (mdb_lookup_by_name("arc_stats", &sym) == -1) { 80044cb6abcSbmc mdb_warn("failed to find 'arc_stats'"); 80144cb6abcSbmc return (DCMD_ERR); 80244cb6abcSbmc } 80344cb6abcSbmc 80444cb6abcSbmc stats = mdb_zalloc(sym.st_size, UM_SLEEP | UM_GC); 80544cb6abcSbmc 80644cb6abcSbmc if (mdb_vread(stats, sym.st_size, sym.st_value) == -1) { 80744cb6abcSbmc mdb_warn("couldn't read 'arc_stats' at %p", sym.st_value); 80844cb6abcSbmc return (DCMD_ERR); 80944cb6abcSbmc } 81044cb6abcSbmc 81144cb6abcSbmc nstats = sym.st_size / sizeof (kstat_named_t); 81244cb6abcSbmc 81391ebeef5Sahrens /* NB: -a / opt_a are ignored for backwards compatability */ 81491ebeef5Sahrens if (mdb_getopts(argc, argv, 81591ebeef5Sahrens 'a', MDB_OPT_SETBITS, TRUE, &opt_a, 81691ebeef5Sahrens 'b', MDB_OPT_SETBITS, TRUE, &opt_b, 81791ebeef5Sahrens 'k', MDB_OPT_SETBITS, 10, &shift, 81891ebeef5Sahrens 'm', MDB_OPT_SETBITS, 20, &shift, 81991ebeef5Sahrens 'g', MDB_OPT_SETBITS, 30, &shift, 82091ebeef5Sahrens NULL) != argc) 82144cb6abcSbmc return (DCMD_USAGE); 82244cb6abcSbmc 82391ebeef5Sahrens if (!opt_b && !shift) 82491ebeef5Sahrens shift = 20; 82544cb6abcSbmc 82691ebeef5Sahrens switch (shift) { 82791ebeef5Sahrens case 0: 82891ebeef5Sahrens suffix = "B"; 82991ebeef5Sahrens break; 83091ebeef5Sahrens case 10: 83191ebeef5Sahrens suffix = "KB"; 83291ebeef5Sahrens break; 83391ebeef5Sahrens case 20: 83491ebeef5Sahrens suffix = "MB"; 83591ebeef5Sahrens break; 83691ebeef5Sahrens case 30: 83791ebeef5Sahrens suffix = "GB"; 83891ebeef5Sahrens break; 83991ebeef5Sahrens default: 84091ebeef5Sahrens suffix = "XX"; 84191ebeef5Sahrens } 84291ebeef5Sahrens 84344cb6abcSbmc for (i = 0; i < nstats; i++) { 84491ebeef5Sahrens int j; 84591ebeef5Sahrens boolean_t bytes = B_FALSE; 84691ebeef5Sahrens 84791ebeef5Sahrens for (j = 0; bytestats[j]; j++) { 84891ebeef5Sahrens if (strcmp(stats[i].name, bytestats[j]) == 0) { 84991ebeef5Sahrens bytes = B_TRUE; 85091ebeef5Sahrens break; 85191ebeef5Sahrens } 85291ebeef5Sahrens } 85391ebeef5Sahrens 85491ebeef5Sahrens if (bytes) { 85591ebeef5Sahrens mdb_printf("%-25s = %9llu %s\n", stats[i].name, 85691ebeef5Sahrens stats[i].value.ui64 >> shift, suffix); 85791ebeef5Sahrens } else { 85891ebeef5Sahrens mdb_printf("%-25s = %9llu\n", stats[i].name, 85944cb6abcSbmc stats[i].value.ui64); 86044cb6abcSbmc } 86144cb6abcSbmc } 86244cb6abcSbmc 86391ebeef5Sahrens for (i = 0; extras[i]; i++) { 86444cb6abcSbmc uint64_t buf; 86544cb6abcSbmc 86691ebeef5Sahrens if (mdb_lookup_by_name(extras[i], &sym) == -1) { 86791ebeef5Sahrens mdb_warn("failed to find '%s'", extras[i]); 86844cb6abcSbmc return (DCMD_ERR); 86944cb6abcSbmc } 87044cb6abcSbmc 87144cb6abcSbmc if (sym.st_size != sizeof (uint64_t) && 87244cb6abcSbmc sym.st_size != sizeof (uint32_t)) { 87391ebeef5Sahrens mdb_warn("expected scalar for variable '%s'\n", 87491ebeef5Sahrens extras[i]); 87544cb6abcSbmc return (DCMD_ERR); 87644cb6abcSbmc } 87744cb6abcSbmc 87844cb6abcSbmc if (mdb_vread(&buf, sym.st_size, sym.st_value) == -1) { 87991ebeef5Sahrens mdb_warn("couldn't read '%s'", extras[i]); 88044cb6abcSbmc return (DCMD_ERR); 88144cb6abcSbmc } 88244cb6abcSbmc 88391ebeef5Sahrens mdb_printf("%-25s = ", extras[i]); 88444cb6abcSbmc 88591ebeef5Sahrens /* NB: all the 64-bit extras happen to be byte counts */ 88644cb6abcSbmc if (sym.st_size == sizeof (uint64_t)) 88791ebeef5Sahrens mdb_printf("%9llu %s\n", buf >> shift, suffix); 88844cb6abcSbmc 88944cb6abcSbmc if (sym.st_size == sizeof (uint32_t)) 89091ebeef5Sahrens mdb_printf("%9d\n", *((uint32_t *)&buf)); 89144cb6abcSbmc } 89244cb6abcSbmc return (DCMD_OK); 89344cb6abcSbmc } 89444cb6abcSbmc 895fa9e4066Sahrens /* 896fa9e4066Sahrens * ::spa 897fa9e4066Sahrens * 898fa9e4066Sahrens * -c Print configuration information as well 899fa9e4066Sahrens * -v Print vdev state 900fa9e4066Sahrens * -e Print vdev error stats 901fa9e4066Sahrens * 902fa9e4066Sahrens * Print a summarized spa_t. When given no arguments, prints out a table of all 903fa9e4066Sahrens * active pools on the system. 904fa9e4066Sahrens */ 905fa9e4066Sahrens /* ARGSUSED */ 906fa9e4066Sahrens static int 907fa9e4066Sahrens spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 908fa9e4066Sahrens { 909fa9e4066Sahrens spa_t spa; 910fa9e4066Sahrens const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED", 911e14bb325SJeff Bonwick "SPARE", "L2CACHE", "UNINIT", "UNAVAIL", "POTENTIAL" }; 912fa9e4066Sahrens const char *state; 913fa9e4066Sahrens int config = FALSE; 914fa9e4066Sahrens int vdevs = FALSE; 915fa9e4066Sahrens int errors = FALSE; 916fa9e4066Sahrens 917fa9e4066Sahrens if (mdb_getopts(argc, argv, 918fa9e4066Sahrens 'c', MDB_OPT_SETBITS, TRUE, &config, 919fa9e4066Sahrens 'v', MDB_OPT_SETBITS, TRUE, &vdevs, 920fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 921fa9e4066Sahrens NULL) != argc) 922fa9e4066Sahrens return (DCMD_USAGE); 923fa9e4066Sahrens 924fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 925fa9e4066Sahrens if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) { 926fa9e4066Sahrens mdb_warn("can't walk spa"); 927fa9e4066Sahrens return (DCMD_ERR); 928fa9e4066Sahrens } 929fa9e4066Sahrens 930fa9e4066Sahrens return (DCMD_OK); 931fa9e4066Sahrens } 932fa9e4066Sahrens 933fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 934fa9e4066Sahrens mdb_printf("%#lr\n", addr); 935fa9e4066Sahrens return (DCMD_OK); 936fa9e4066Sahrens } 937fa9e4066Sahrens 938fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) 939fa9e4066Sahrens mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE", 940fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 60 : 52, "NAME"); 941fa9e4066Sahrens 942fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 943fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 944fa9e4066Sahrens return (DCMD_ERR); 945fa9e4066Sahrens } 946fa9e4066Sahrens 947fa9e4066Sahrens if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL) 948ea8dc4b6Seschrock state = "UNKNOWN"; 949fa9e4066Sahrens else 950fa9e4066Sahrens state = statetab[spa.spa_state]; 951fa9e4066Sahrens 952e14bb325SJeff Bonwick mdb_printf("%0?p %9s %s\n", addr, state, spa.spa_name); 953fa9e4066Sahrens 954fa9e4066Sahrens if (config) { 955fa9e4066Sahrens mdb_printf("\n"); 956fa9e4066Sahrens mdb_inc_indent(4); 957fa9e4066Sahrens if (mdb_call_dcmd("spa_config", addr, flags, 0, 958fa9e4066Sahrens NULL) != DCMD_OK) 959fa9e4066Sahrens return (DCMD_ERR); 960fa9e4066Sahrens mdb_dec_indent(4); 961fa9e4066Sahrens } 962fa9e4066Sahrens 963fa9e4066Sahrens if (vdevs || errors) { 964fa9e4066Sahrens mdb_arg_t v; 965fa9e4066Sahrens 966fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 967fa9e4066Sahrens v.a_un.a_str = "-e"; 968fa9e4066Sahrens 969fa9e4066Sahrens mdb_printf("\n"); 970fa9e4066Sahrens mdb_inc_indent(4); 971fa9e4066Sahrens if (mdb_call_dcmd("spa_vdevs", addr, flags, errors ? 1 : 0, 972fa9e4066Sahrens &v) != DCMD_OK) 973fa9e4066Sahrens return (DCMD_ERR); 974fa9e4066Sahrens mdb_dec_indent(4); 975fa9e4066Sahrens } 976fa9e4066Sahrens 977fa9e4066Sahrens return (DCMD_OK); 978fa9e4066Sahrens } 979fa9e4066Sahrens 980fa9e4066Sahrens /* 981fa9e4066Sahrens * ::spa_config 982fa9e4066Sahrens * 983fa9e4066Sahrens * Given a spa_t, print the configuration information stored in spa_config. 984fa9e4066Sahrens * Since it's just an nvlist, format it as an indented list of name=value pairs. 985fa9e4066Sahrens * We simply read the value of spa_config and pass off to ::nvlist. 986fa9e4066Sahrens */ 987fa9e4066Sahrens /* ARGSUSED */ 988fa9e4066Sahrens static int 989fa9e4066Sahrens spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 990fa9e4066Sahrens { 991fa9e4066Sahrens spa_t spa; 992fa9e4066Sahrens 993fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 994fa9e4066Sahrens return (DCMD_USAGE); 995fa9e4066Sahrens 996fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 997fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 998fa9e4066Sahrens return (DCMD_ERR); 999fa9e4066Sahrens } 1000fa9e4066Sahrens 1001fa9e4066Sahrens if (spa.spa_config == NULL) { 1002fa9e4066Sahrens mdb_printf("(none)\n"); 1003fa9e4066Sahrens return (DCMD_OK); 1004fa9e4066Sahrens } 1005fa9e4066Sahrens 1006fa9e4066Sahrens return (mdb_call_dcmd("nvlist", (uintptr_t)spa.spa_config, flags, 1007fa9e4066Sahrens 0, NULL)); 1008fa9e4066Sahrens } 1009fa9e4066Sahrens 1010fa9e4066Sahrens /* 1011fa9e4066Sahrens * ::vdev 1012fa9e4066Sahrens * 1013fa9e4066Sahrens * Print out a summarized vdev_t, in the following form: 1014fa9e4066Sahrens * 1015fa9e4066Sahrens * ADDR STATE AUX DESC 1016fa9e4066Sahrens * fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0 1017fa9e4066Sahrens * 1018fa9e4066Sahrens * If '-r' is specified, recursively visit all children. 1019fa9e4066Sahrens * 1020fa9e4066Sahrens * With '-e', the statistics associated with the vdev are printed as well. 1021fa9e4066Sahrens */ 1022fa9e4066Sahrens static int 1023614409b5Sahrens do_print_vdev(uintptr_t addr, int flags, int depth, int stats, 1024fa9e4066Sahrens int recursive) 1025fa9e4066Sahrens { 1026fa9e4066Sahrens vdev_t vdev; 1027fa9e4066Sahrens char desc[MAXNAMELEN]; 1028fa9e4066Sahrens int c, children; 1029fa9e4066Sahrens uintptr_t *child; 1030fa9e4066Sahrens const char *state, *aux; 1031fa9e4066Sahrens 1032fa9e4066Sahrens if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) { 1033fa9e4066Sahrens mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr); 1034fa9e4066Sahrens return (DCMD_ERR); 1035fa9e4066Sahrens } 1036fa9e4066Sahrens 1037fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 1038fa9e4066Sahrens mdb_printf("%#lr", addr); 1039fa9e4066Sahrens } else { 1040fa9e4066Sahrens if (vdev.vdev_path != NULL) { 1041fa9e4066Sahrens if (mdb_readstr(desc, sizeof (desc), 1042fa9e4066Sahrens (uintptr_t)vdev.vdev_path) == -1) { 1043fa9e4066Sahrens mdb_warn("failed to read vdev_path at %p\n", 1044fa9e4066Sahrens vdev.vdev_path); 1045fa9e4066Sahrens return (DCMD_ERR); 1046fa9e4066Sahrens } 1047fa9e4066Sahrens } else if (vdev.vdev_ops != NULL) { 1048fa9e4066Sahrens vdev_ops_t ops; 1049fa9e4066Sahrens if (mdb_vread(&ops, sizeof (ops), 1050fa9e4066Sahrens (uintptr_t)vdev.vdev_ops) == -1) { 1051fa9e4066Sahrens mdb_warn("failed to read vdev_ops at %p\n", 1052fa9e4066Sahrens vdev.vdev_ops); 1053fa9e4066Sahrens return (DCMD_ERR); 1054fa9e4066Sahrens } 1055fa9e4066Sahrens (void) strcpy(desc, ops.vdev_op_type); 1056fa9e4066Sahrens } else { 1057fa9e4066Sahrens (void) strcpy(desc, "<unknown>"); 1058fa9e4066Sahrens } 1059fa9e4066Sahrens 1060fa9e4066Sahrens if (depth == 0 && DCMD_HDRSPEC(flags)) 1061fa9e4066Sahrens mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n", 1062fa9e4066Sahrens "ADDR", "STATE", "AUX", 1063fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 43 : 35, 1064fa9e4066Sahrens "DESCRIPTION"); 1065fa9e4066Sahrens 1066fa9e4066Sahrens mdb_printf("%0?p ", addr); 1067fa9e4066Sahrens 1068fa9e4066Sahrens switch (vdev.vdev_state) { 1069fa9e4066Sahrens case VDEV_STATE_CLOSED: 1070fa9e4066Sahrens state = "CLOSED"; 1071fa9e4066Sahrens break; 1072fa9e4066Sahrens case VDEV_STATE_OFFLINE: 1073fa9e4066Sahrens state = "OFFLINE"; 1074fa9e4066Sahrens break; 1075fa9e4066Sahrens case VDEV_STATE_CANT_OPEN: 1076fa9e4066Sahrens state = "CANT_OPEN"; 1077fa9e4066Sahrens break; 1078fa9e4066Sahrens case VDEV_STATE_DEGRADED: 1079fa9e4066Sahrens state = "DEGRADED"; 1080fa9e4066Sahrens break; 1081fa9e4066Sahrens case VDEV_STATE_HEALTHY: 1082fa9e4066Sahrens state = "HEALTHY"; 1083fa9e4066Sahrens break; 10843d7072f8Seschrock case VDEV_STATE_REMOVED: 10853d7072f8Seschrock state = "REMOVED"; 10863d7072f8Seschrock break; 10873d7072f8Seschrock case VDEV_STATE_FAULTED: 10883d7072f8Seschrock state = "FAULTED"; 10893d7072f8Seschrock break; 1090fa9e4066Sahrens default: 1091fa9e4066Sahrens state = "UNKNOWN"; 1092fa9e4066Sahrens break; 1093fa9e4066Sahrens } 1094fa9e4066Sahrens 1095fa9e4066Sahrens switch (vdev.vdev_stat.vs_aux) { 1096fa9e4066Sahrens case VDEV_AUX_NONE: 1097fa9e4066Sahrens aux = "-"; 1098fa9e4066Sahrens break; 1099fa9e4066Sahrens case VDEV_AUX_OPEN_FAILED: 1100fa9e4066Sahrens aux = "OPEN_FAILED"; 1101fa9e4066Sahrens break; 1102fa9e4066Sahrens case VDEV_AUX_CORRUPT_DATA: 1103fa9e4066Sahrens aux = "CORRUPT_DATA"; 1104fa9e4066Sahrens break; 1105fa9e4066Sahrens case VDEV_AUX_NO_REPLICAS: 1106fa9e4066Sahrens aux = "NO_REPLICAS"; 1107fa9e4066Sahrens break; 1108fa9e4066Sahrens case VDEV_AUX_BAD_GUID_SUM: 1109fa9e4066Sahrens aux = "BAD_GUID_SUM"; 1110fa9e4066Sahrens break; 1111fa9e4066Sahrens case VDEV_AUX_TOO_SMALL: 1112fa9e4066Sahrens aux = "TOO_SMALL"; 1113fa9e4066Sahrens break; 1114fa9e4066Sahrens case VDEV_AUX_BAD_LABEL: 1115fa9e4066Sahrens aux = "BAD_LABEL"; 1116fa9e4066Sahrens break; 1117b87f3af3Sperrin case VDEV_AUX_VERSION_NEWER: 1118b87f3af3Sperrin aux = "VERS_NEWER"; 1119b87f3af3Sperrin break; 1120b87f3af3Sperrin case VDEV_AUX_VERSION_OLDER: 1121b87f3af3Sperrin aux = "VERS_OLDER"; 1122b87f3af3Sperrin break; 1123b87f3af3Sperrin case VDEV_AUX_SPARED: 1124b87f3af3Sperrin aux = "SPARED"; 1125b87f3af3Sperrin break; 1126b87f3af3Sperrin case VDEV_AUX_ERR_EXCEEDED: 1127b87f3af3Sperrin aux = "ERR_EXCEEDED"; 1128b87f3af3Sperrin break; 1129b87f3af3Sperrin case VDEV_AUX_IO_FAILURE: 1130b87f3af3Sperrin aux = "IO_FAILURE"; 1131b87f3af3Sperrin break; 1132b87f3af3Sperrin case VDEV_AUX_BAD_LOG: 1133b87f3af3Sperrin aux = "BAD_LOG"; 1134b87f3af3Sperrin break; 1135fa9e4066Sahrens default: 1136fa9e4066Sahrens aux = "UNKNOWN"; 1137fa9e4066Sahrens break; 1138fa9e4066Sahrens } 1139fa9e4066Sahrens 1140fa9e4066Sahrens mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc); 1141fa9e4066Sahrens 1142fa9e4066Sahrens if (stats) { 1143fa9e4066Sahrens vdev_stat_t *vs = &vdev.vdev_stat; 1144fa9e4066Sahrens int i; 1145fa9e4066Sahrens 1146fa9e4066Sahrens mdb_inc_indent(4); 1147fa9e4066Sahrens mdb_printf("\n"); 1148fa9e4066Sahrens mdb_printf("%<u> %12s %12s %12s %12s " 1149fa9e4066Sahrens "%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM", 1150fa9e4066Sahrens "IOCTL"); 1151fa9e4066Sahrens mdb_printf("OPS "); 1152fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1153fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_ops[i], 1154fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1155fa9e4066Sahrens mdb_printf("\n"); 1156fa9e4066Sahrens mdb_printf("BYTES "); 1157fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1158fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_bytes[i], 1159fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1160fa9e4066Sahrens 1161fa9e4066Sahrens 1162fa9e4066Sahrens mdb_printf("\n"); 1163fa9e4066Sahrens mdb_printf("EREAD %10#llx\n", vs->vs_read_errors); 1164fa9e4066Sahrens mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors); 1165fa9e4066Sahrens mdb_printf("ECKSUM %10#llx\n", 1166fa9e4066Sahrens vs->vs_checksum_errors); 1167fa9e4066Sahrens mdb_dec_indent(4); 1168fa9e4066Sahrens } 1169fa9e4066Sahrens 1170614409b5Sahrens if (stats) 1171fa9e4066Sahrens mdb_printf("\n"); 1172fa9e4066Sahrens } 1173fa9e4066Sahrens 1174fa9e4066Sahrens children = vdev.vdev_children; 1175fa9e4066Sahrens 1176fa9e4066Sahrens if (children == 0 || !recursive) 1177fa9e4066Sahrens return (DCMD_OK); 1178fa9e4066Sahrens 1179fa9e4066Sahrens child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC); 1180fa9e4066Sahrens if (mdb_vread(child, children * sizeof (void *), 1181fa9e4066Sahrens (uintptr_t)vdev.vdev_child) == -1) { 1182fa9e4066Sahrens mdb_warn("failed to read vdev children at %p", vdev.vdev_child); 1183fa9e4066Sahrens return (DCMD_ERR); 1184fa9e4066Sahrens } 1185fa9e4066Sahrens 1186fa9e4066Sahrens for (c = 0; c < children; c++) { 1187614409b5Sahrens if (do_print_vdev(child[c], flags, depth + 2, stats, 1188fa9e4066Sahrens recursive)) 1189fa9e4066Sahrens return (DCMD_ERR); 1190fa9e4066Sahrens } 1191fa9e4066Sahrens 1192fa9e4066Sahrens return (DCMD_OK); 1193fa9e4066Sahrens } 1194fa9e4066Sahrens 1195fa9e4066Sahrens static int 1196fa9e4066Sahrens vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1197fa9e4066Sahrens { 1198fa9e4066Sahrens int recursive = FALSE; 1199fa9e4066Sahrens int stats = FALSE; 1200c5904d13Seschrock uint64_t depth = 0; 1201fa9e4066Sahrens 1202fa9e4066Sahrens if (mdb_getopts(argc, argv, 1203fa9e4066Sahrens 'r', MDB_OPT_SETBITS, TRUE, &recursive, 1204fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &stats, 1205c5904d13Seschrock 'd', MDB_OPT_UINT64, &depth, 1206fa9e4066Sahrens NULL) != argc) 1207fa9e4066Sahrens return (DCMD_USAGE); 1208fa9e4066Sahrens 1209fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1210fa9e4066Sahrens mdb_warn("no vdev_t address given\n"); 1211fa9e4066Sahrens return (DCMD_ERR); 1212fa9e4066Sahrens } 1213fa9e4066Sahrens 1214c5904d13Seschrock return (do_print_vdev(addr, flags, (int)depth, stats, recursive)); 1215fa9e4066Sahrens } 1216fa9e4066Sahrens 12175f5f7a6fSahrens typedef struct metaslab_walk_data { 12185f5f7a6fSahrens uint64_t mw_numvdevs; 12195f5f7a6fSahrens uintptr_t *mw_vdevs; 12205f5f7a6fSahrens int mw_curvdev; 12215f5f7a6fSahrens uint64_t mw_nummss; 12225f5f7a6fSahrens uintptr_t *mw_mss; 12235f5f7a6fSahrens int mw_curms; 12245f5f7a6fSahrens } metaslab_walk_data_t; 12255f5f7a6fSahrens 12265f5f7a6fSahrens static int 12275f5f7a6fSahrens metaslab_walk_step(mdb_walk_state_t *wsp) 12285f5f7a6fSahrens { 12295f5f7a6fSahrens metaslab_walk_data_t *mw = wsp->walk_data; 12305f5f7a6fSahrens metaslab_t ms; 12315f5f7a6fSahrens uintptr_t msp; 12325f5f7a6fSahrens 12335f5f7a6fSahrens if (mw->mw_curvdev >= mw->mw_numvdevs) 12345f5f7a6fSahrens return (WALK_DONE); 12355f5f7a6fSahrens 12365f5f7a6fSahrens if (mw->mw_mss == NULL) { 12375f5f7a6fSahrens uintptr_t mssp; 12385f5f7a6fSahrens uintptr_t vdevp; 12395f5f7a6fSahrens 12405f5f7a6fSahrens ASSERT(mw->mw_curms == 0); 12415f5f7a6fSahrens ASSERT(mw->mw_nummss == 0); 12425f5f7a6fSahrens 12435f5f7a6fSahrens vdevp = mw->mw_vdevs[mw->mw_curvdev]; 12445f5f7a6fSahrens if (GETMEMB(vdevp, struct vdev, vdev_ms, mssp) || 12455f5f7a6fSahrens GETMEMB(vdevp, struct vdev, vdev_ms_count, mw->mw_nummss)) { 12465f5f7a6fSahrens return (WALK_ERR); 12475f5f7a6fSahrens } 12485f5f7a6fSahrens 12495f5f7a6fSahrens mw->mw_mss = mdb_alloc(mw->mw_nummss * sizeof (void*), 12505f5f7a6fSahrens UM_SLEEP | UM_GC); 12515f5f7a6fSahrens if (mdb_vread(mw->mw_mss, mw->mw_nummss * sizeof (void*), 12525f5f7a6fSahrens mssp) == -1) { 12535f5f7a6fSahrens mdb_warn("failed to read vdev_ms at %p", mssp); 12545f5f7a6fSahrens return (WALK_ERR); 12555f5f7a6fSahrens } 12565f5f7a6fSahrens } 12575f5f7a6fSahrens 12585f5f7a6fSahrens if (mw->mw_curms >= mw->mw_nummss) { 12595f5f7a6fSahrens mw->mw_mss = NULL; 12605f5f7a6fSahrens mw->mw_curms = 0; 12615f5f7a6fSahrens mw->mw_nummss = 0; 12625f5f7a6fSahrens mw->mw_curvdev++; 12635f5f7a6fSahrens return (WALK_NEXT); 12645f5f7a6fSahrens } 12655f5f7a6fSahrens 12665f5f7a6fSahrens msp = mw->mw_mss[mw->mw_curms]; 12675f5f7a6fSahrens if (mdb_vread(&ms, sizeof (metaslab_t), msp) == -1) { 12685f5f7a6fSahrens mdb_warn("failed to read metaslab_t at %p", msp); 12695f5f7a6fSahrens return (WALK_ERR); 12705f5f7a6fSahrens } 12715f5f7a6fSahrens 12725f5f7a6fSahrens mw->mw_curms++; 12735f5f7a6fSahrens 12745f5f7a6fSahrens return (wsp->walk_callback(msp, &ms, wsp->walk_cbdata)); 12755f5f7a6fSahrens } 12765f5f7a6fSahrens 12775f5f7a6fSahrens /* ARGSUSED */ 12785f5f7a6fSahrens static int 12795f5f7a6fSahrens metaslab_walk_init(mdb_walk_state_t *wsp) 12805f5f7a6fSahrens { 12815f5f7a6fSahrens metaslab_walk_data_t *mw; 12825f5f7a6fSahrens uintptr_t root_vdevp; 12835f5f7a6fSahrens uintptr_t childp; 12845f5f7a6fSahrens 12855f5f7a6fSahrens if (wsp->walk_addr == NULL) { 12865f5f7a6fSahrens mdb_warn("must supply address of spa_t\n"); 12875f5f7a6fSahrens return (WALK_ERR); 12885f5f7a6fSahrens } 12895f5f7a6fSahrens 12905f5f7a6fSahrens mw = mdb_zalloc(sizeof (metaslab_walk_data_t), UM_SLEEP | UM_GC); 12915f5f7a6fSahrens 12925f5f7a6fSahrens if (GETMEMB(wsp->walk_addr, struct spa, spa_root_vdev, root_vdevp) || 12935f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_children, mw->mw_numvdevs) || 12945f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_child, childp)) { 12955f5f7a6fSahrens return (DCMD_ERR); 12965f5f7a6fSahrens } 12975f5f7a6fSahrens 12985f5f7a6fSahrens mw->mw_vdevs = mdb_alloc(mw->mw_numvdevs * sizeof (void *), 12995f5f7a6fSahrens UM_SLEEP | UM_GC); 13005f5f7a6fSahrens if (mdb_vread(mw->mw_vdevs, mw->mw_numvdevs * sizeof (void *), 13015f5f7a6fSahrens childp) == -1) { 13025f5f7a6fSahrens mdb_warn("failed to read root vdev children at %p", childp); 13035f5f7a6fSahrens return (DCMD_ERR); 13045f5f7a6fSahrens } 13055f5f7a6fSahrens 13065f5f7a6fSahrens wsp->walk_data = mw; 13075f5f7a6fSahrens 13085f5f7a6fSahrens return (WALK_NEXT); 13095f5f7a6fSahrens } 13105f5f7a6fSahrens 1311fa9e4066Sahrens typedef struct mdb_spa { 1312fa9e4066Sahrens uintptr_t spa_dsl_pool; 1313fa9e4066Sahrens uintptr_t spa_root_vdev; 1314fa9e4066Sahrens } mdb_spa_t; 1315fa9e4066Sahrens 1316fa9e4066Sahrens typedef struct mdb_dsl_dir { 1317fa9e4066Sahrens uintptr_t dd_phys; 1318fa9e4066Sahrens int64_t dd_space_towrite[TXG_SIZE]; 1319fa9e4066Sahrens } mdb_dsl_dir_t; 1320fa9e4066Sahrens 1321fa9e4066Sahrens typedef struct mdb_dsl_dir_phys { 1322fa9e4066Sahrens uint64_t dd_used_bytes; 1323fa9e4066Sahrens uint64_t dd_compressed_bytes; 1324fa9e4066Sahrens uint64_t dd_uncompressed_bytes; 1325fa9e4066Sahrens } mdb_dsl_dir_phys_t; 1326fa9e4066Sahrens 1327fa9e4066Sahrens typedef struct mdb_vdev { 1328fa9e4066Sahrens uintptr_t vdev_parent; 1329fa9e4066Sahrens uintptr_t vdev_ms; 1330fa9e4066Sahrens uint64_t vdev_ms_count; 1331fa9e4066Sahrens vdev_stat_t vdev_stat; 1332fa9e4066Sahrens } mdb_vdev_t; 1333fa9e4066Sahrens 1334fa9e4066Sahrens typedef struct mdb_metaslab { 1335fa9e4066Sahrens space_map_t ms_allocmap[TXG_SIZE]; 1336fa9e4066Sahrens space_map_t ms_freemap[TXG_SIZE]; 1337fa9e4066Sahrens space_map_t ms_map; 1338ecc2d604Sbonwick space_map_obj_t ms_smo; 13395f5f7a6fSahrens space_map_obj_t ms_smo_syncing; 1340fa9e4066Sahrens } mdb_metaslab_t; 1341fa9e4066Sahrens 13425f5f7a6fSahrens typedef struct space_data { 13435f5f7a6fSahrens uint64_t ms_allocmap[TXG_SIZE]; 13445f5f7a6fSahrens uint64_t ms_freemap[TXG_SIZE]; 13455f5f7a6fSahrens uint64_t ms_map; 13465f5f7a6fSahrens uint64_t avail; 13475f5f7a6fSahrens uint64_t nowavail; 13485f5f7a6fSahrens } space_data_t; 13495f5f7a6fSahrens 13505f5f7a6fSahrens /* ARGSUSED */ 13515f5f7a6fSahrens static int 13525f5f7a6fSahrens space_cb(uintptr_t addr, const void *unknown, void *arg) 13535f5f7a6fSahrens { 13545f5f7a6fSahrens space_data_t *sd = arg; 13555f5f7a6fSahrens mdb_metaslab_t ms; 13565f5f7a6fSahrens 13575f5f7a6fSahrens if (GETMEMB(addr, struct metaslab, ms_allocmap, ms.ms_allocmap) || 13585f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_freemap, ms.ms_freemap) || 13595f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_map, ms.ms_map) || 13605f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo, ms.ms_smo) || 13615f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo_syncing, ms.ms_smo_syncing)) { 13625f5f7a6fSahrens return (WALK_ERR); 13635f5f7a6fSahrens } 13645f5f7a6fSahrens 13655f5f7a6fSahrens sd->ms_allocmap[0] += ms.ms_allocmap[0].sm_space; 13665f5f7a6fSahrens sd->ms_allocmap[1] += ms.ms_allocmap[1].sm_space; 13675f5f7a6fSahrens sd->ms_allocmap[2] += ms.ms_allocmap[2].sm_space; 13685f5f7a6fSahrens sd->ms_allocmap[3] += ms.ms_allocmap[3].sm_space; 13695f5f7a6fSahrens sd->ms_freemap[0] += ms.ms_freemap[0].sm_space; 13705f5f7a6fSahrens sd->ms_freemap[1] += ms.ms_freemap[1].sm_space; 13715f5f7a6fSahrens sd->ms_freemap[2] += ms.ms_freemap[2].sm_space; 13725f5f7a6fSahrens sd->ms_freemap[3] += ms.ms_freemap[3].sm_space; 13735f5f7a6fSahrens sd->ms_map += ms.ms_map.sm_space; 13745f5f7a6fSahrens sd->avail += ms.ms_map.sm_size - ms.ms_smo.smo_alloc; 13755f5f7a6fSahrens sd->nowavail += ms.ms_map.sm_size - ms.ms_smo_syncing.smo_alloc; 13765f5f7a6fSahrens 13775f5f7a6fSahrens return (WALK_NEXT); 13785f5f7a6fSahrens } 13795f5f7a6fSahrens 1380fa9e4066Sahrens /* 1381fa9e4066Sahrens * ::spa_space [-b] 1382fa9e4066Sahrens * 1383fa9e4066Sahrens * Given a spa_t, print out it's on-disk space usage and in-core 1384fa9e4066Sahrens * estimates of future usage. If -b is given, print space in bytes. 1385fa9e4066Sahrens * Otherwise print in megabytes. 1386fa9e4066Sahrens */ 1387fa9e4066Sahrens /* ARGSUSED */ 1388fa9e4066Sahrens static int 1389fa9e4066Sahrens spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1390fa9e4066Sahrens { 1391fa9e4066Sahrens mdb_spa_t spa; 1392fa9e4066Sahrens uintptr_t dp_root_dir; 1393fa9e4066Sahrens mdb_dsl_dir_t dd; 1394fa9e4066Sahrens mdb_dsl_dir_phys_t dsp; 1395fa9e4066Sahrens uint64_t children; 1396fa9e4066Sahrens uintptr_t childaddr; 13975f5f7a6fSahrens space_data_t sd; 1398fa9e4066Sahrens int shift = 20; 1399fa9e4066Sahrens char *suffix = "M"; 1400fa9e4066Sahrens int bits = FALSE; 1401fa9e4066Sahrens 1402fa9e4066Sahrens if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bits, NULL) != 1403fa9e4066Sahrens argc) 1404fa9e4066Sahrens return (DCMD_USAGE); 1405fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1406fa9e4066Sahrens return (DCMD_USAGE); 1407fa9e4066Sahrens 1408fa9e4066Sahrens if (bits) { 1409fa9e4066Sahrens shift = 0; 1410fa9e4066Sahrens suffix = ""; 1411fa9e4066Sahrens } 1412fa9e4066Sahrens 1413fa9e4066Sahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, spa.spa_dsl_pool) || 1414fa9e4066Sahrens GETMEMB(addr, struct spa, spa_root_vdev, spa.spa_root_vdev) || 1415fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_children, children) || 1416fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_child, childaddr) || 1417fa9e4066Sahrens GETMEMB(spa.spa_dsl_pool, struct dsl_pool, 1418fa9e4066Sahrens dp_root_dir, dp_root_dir) || 1419fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, dd_phys, dd.dd_phys) || 1420fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1421fa9e4066Sahrens dd_space_towrite, dd.dd_space_towrite) || 1422fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 14235f5f7a6fSahrens dd_used_bytes, dsp.dd_used_bytes) || 14245f5f7a6fSahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1425fa9e4066Sahrens dd_compressed_bytes, dsp.dd_compressed_bytes) || 1426fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1427fa9e4066Sahrens dd_uncompressed_bytes, dsp.dd_uncompressed_bytes)) { 1428fa9e4066Sahrens return (DCMD_ERR); 1429fa9e4066Sahrens } 1430fa9e4066Sahrens 1431fa9e4066Sahrens mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n", 1432fa9e4066Sahrens dd.dd_space_towrite[0] >> shift, suffix, 1433fa9e4066Sahrens dd.dd_space_towrite[1] >> shift, suffix, 1434fa9e4066Sahrens dd.dd_space_towrite[2] >> shift, suffix, 1435fa9e4066Sahrens dd.dd_space_towrite[3] >> shift, suffix); 1436fa9e4066Sahrens 1437fa9e4066Sahrens mdb_printf("dd_phys.dd_used_bytes = %llu%s\n", 1438fa9e4066Sahrens dsp.dd_used_bytes >> shift, suffix); 1439fa9e4066Sahrens mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n", 1440fa9e4066Sahrens dsp.dd_compressed_bytes >> shift, suffix); 1441fa9e4066Sahrens mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n", 1442fa9e4066Sahrens dsp.dd_uncompressed_bytes >> shift, suffix); 1443fa9e4066Sahrens 14445f5f7a6fSahrens bzero(&sd, sizeof (sd)); 14455f5f7a6fSahrens if (mdb_pwalk("metaslab", space_cb, &sd, addr) != 0) { 14465f5f7a6fSahrens mdb_warn("can't walk metaslabs"); 1447fa9e4066Sahrens return (DCMD_ERR); 1448fa9e4066Sahrens } 1449fa9e4066Sahrens 1450fa9e4066Sahrens mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n", 14515f5f7a6fSahrens sd.ms_allocmap[0] >> shift, suffix, 14525f5f7a6fSahrens sd.ms_allocmap[1] >> shift, suffix, 14535f5f7a6fSahrens sd.ms_allocmap[2] >> shift, suffix, 14545f5f7a6fSahrens sd.ms_allocmap[3] >> shift, suffix); 1455fa9e4066Sahrens mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n", 14565f5f7a6fSahrens sd.ms_freemap[0] >> shift, suffix, 14575f5f7a6fSahrens sd.ms_freemap[1] >> shift, suffix, 14585f5f7a6fSahrens sd.ms_freemap[2] >> shift, suffix, 14595f5f7a6fSahrens sd.ms_freemap[3] >> shift, suffix); 14605f5f7a6fSahrens mdb_printf("ms_map = %llu%s\n", sd.ms_map >> shift, suffix); 14615f5f7a6fSahrens mdb_printf("last synced avail = %llu%s\n", sd.avail >> shift, suffix); 14625f5f7a6fSahrens mdb_printf("current syncing avail = %llu%s\n", 14635f5f7a6fSahrens sd.nowavail >> shift, suffix); 1464fa9e4066Sahrens 1465fa9e4066Sahrens return (DCMD_OK); 1466fa9e4066Sahrens } 1467fa9e4066Sahrens 1468fa9e4066Sahrens /* 1469fa9e4066Sahrens * ::spa_verify 1470fa9e4066Sahrens * 1471fa9e4066Sahrens * Given a spa_t, verify that that the pool is self-consistent. 1472fa9e4066Sahrens * Currently, it only checks to make sure that the vdev tree exists. 1473fa9e4066Sahrens */ 1474fa9e4066Sahrens /* ARGSUSED */ 1475fa9e4066Sahrens static int 1476fa9e4066Sahrens spa_verify(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1477fa9e4066Sahrens { 1478fa9e4066Sahrens spa_t spa; 1479fa9e4066Sahrens 1480fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1481fa9e4066Sahrens return (DCMD_USAGE); 1482fa9e4066Sahrens 1483fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1484fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1485fa9e4066Sahrens return (DCMD_ERR); 1486fa9e4066Sahrens } 1487fa9e4066Sahrens 1488fa9e4066Sahrens if (spa.spa_root_vdev == NULL) { 1489fa9e4066Sahrens mdb_printf("no vdev tree present\n"); 1490fa9e4066Sahrens return (DCMD_OK); 1491fa9e4066Sahrens } 1492fa9e4066Sahrens 1493fa9e4066Sahrens return (DCMD_OK); 1494fa9e4066Sahrens } 1495fa9e4066Sahrens 1496*ec9f632eSEric Schrock static int 1497*ec9f632eSEric Schrock spa_print_aux(spa_aux_vdev_t *sav, uint_t flags, mdb_arg_t *v, 1498*ec9f632eSEric Schrock const char *name) 1499*ec9f632eSEric Schrock { 1500*ec9f632eSEric Schrock uintptr_t *aux; 1501*ec9f632eSEric Schrock size_t len; 1502*ec9f632eSEric Schrock int ret, i; 1503*ec9f632eSEric Schrock 1504*ec9f632eSEric Schrock /* 1505*ec9f632eSEric Schrock * Iterate over aux vdevs and print those out as well. This is a 1506*ec9f632eSEric Schrock * little annoying because we don't have a root vdev to pass to ::vdev. 1507*ec9f632eSEric Schrock * Instead, we print a single line and then call it for each child 1508*ec9f632eSEric Schrock * vdev. 1509*ec9f632eSEric Schrock */ 1510*ec9f632eSEric Schrock if (sav->sav_count != 0) { 1511*ec9f632eSEric Schrock v[1].a_type = MDB_TYPE_STRING; 1512*ec9f632eSEric Schrock v[1].a_un.a_str = "-d"; 1513*ec9f632eSEric Schrock v[2].a_type = MDB_TYPE_IMMEDIATE; 1514*ec9f632eSEric Schrock v[2].a_un.a_val = 2; 1515*ec9f632eSEric Schrock 1516*ec9f632eSEric Schrock len = sav->sav_count * sizeof (uintptr_t); 1517*ec9f632eSEric Schrock aux = mdb_alloc(len, UM_SLEEP); 1518*ec9f632eSEric Schrock if (mdb_vread(aux, len, 1519*ec9f632eSEric Schrock (uintptr_t)sav->sav_vdevs) == -1) { 1520*ec9f632eSEric Schrock mdb_free(aux, len); 1521*ec9f632eSEric Schrock mdb_warn("failed to read l2cache vdevs at %p", 1522*ec9f632eSEric Schrock sav->sav_vdevs); 1523*ec9f632eSEric Schrock return (DCMD_ERR); 1524*ec9f632eSEric Schrock } 1525*ec9f632eSEric Schrock 1526*ec9f632eSEric Schrock mdb_printf("%-?s %-9s %-12s %s\n", "-", "-", "-", name); 1527*ec9f632eSEric Schrock 1528*ec9f632eSEric Schrock for (i = 0; i < sav->sav_count; i++) { 1529*ec9f632eSEric Schrock ret = mdb_call_dcmd("vdev", aux[i], flags, 3, v); 1530*ec9f632eSEric Schrock if (ret != DCMD_OK) { 1531*ec9f632eSEric Schrock mdb_free(aux, len); 1532*ec9f632eSEric Schrock return (ret); 1533*ec9f632eSEric Schrock } 1534*ec9f632eSEric Schrock } 1535*ec9f632eSEric Schrock 1536*ec9f632eSEric Schrock mdb_free(aux, len); 1537*ec9f632eSEric Schrock } 1538*ec9f632eSEric Schrock 1539*ec9f632eSEric Schrock return (0); 1540*ec9f632eSEric Schrock } 1541*ec9f632eSEric Schrock 1542fa9e4066Sahrens /* 1543fa9e4066Sahrens * ::spa_vdevs 1544fa9e4066Sahrens * 1545fa9e4066Sahrens * -e Include error stats 1546fa9e4066Sahrens * 1547fa9e4066Sahrens * Print out a summarized list of vdevs for the given spa_t. 1548c5904d13Seschrock * This is accomplished by invoking "::vdev -re" on the root vdev, as well as 1549c5904d13Seschrock * iterating over the cache devices. 1550fa9e4066Sahrens */ 1551fa9e4066Sahrens /* ARGSUSED */ 1552fa9e4066Sahrens static int 1553fa9e4066Sahrens spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1554fa9e4066Sahrens { 1555fa9e4066Sahrens spa_t spa; 1556c5904d13Seschrock mdb_arg_t v[3]; 1557fa9e4066Sahrens int errors = FALSE; 1558*ec9f632eSEric Schrock int ret; 1559fa9e4066Sahrens 1560fa9e4066Sahrens if (mdb_getopts(argc, argv, 1561fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 1562fa9e4066Sahrens NULL) != argc) 1563fa9e4066Sahrens return (DCMD_USAGE); 1564fa9e4066Sahrens 1565fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1566fa9e4066Sahrens return (DCMD_USAGE); 1567fa9e4066Sahrens 1568fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1569fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1570fa9e4066Sahrens return (DCMD_ERR); 1571fa9e4066Sahrens } 1572fa9e4066Sahrens 1573088e9d47Seschrock /* 1574088e9d47Seschrock * Unitialized spa_t structures can have a NULL root vdev. 1575088e9d47Seschrock */ 1576088e9d47Seschrock if (spa.spa_root_vdev == NULL) { 1577088e9d47Seschrock mdb_printf("no associated vdevs\n"); 1578088e9d47Seschrock return (DCMD_OK); 1579088e9d47Seschrock } 1580088e9d47Seschrock 1581c5904d13Seschrock v[0].a_type = MDB_TYPE_STRING; 1582c5904d13Seschrock v[0].a_un.a_str = errors ? "-re" : "-r"; 1583fa9e4066Sahrens 1584c5904d13Seschrock ret = mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev, 1585c5904d13Seschrock flags, 1, v); 1586c5904d13Seschrock if (ret != DCMD_OK) 1587c5904d13Seschrock return (ret); 1588c5904d13Seschrock 1589*ec9f632eSEric Schrock if (spa_print_aux(&spa.spa_l2cache, flags, v, "cache") != 0 || 1590*ec9f632eSEric Schrock spa_print_aux(&spa.spa_spares, flags, v, "spares") != 0) 1591c5904d13Seschrock return (DCMD_ERR); 1592c5904d13Seschrock 1593c5904d13Seschrock return (DCMD_OK); 1594fa9e4066Sahrens } 1595fa9e4066Sahrens 1596ccae0b50Seschrock /* 1597ccae0b50Seschrock * ::zio 1598ccae0b50Seschrock * 1599ccae0b50Seschrock * Print a summary of zio_t and all its children. This is intended to display a 1600ccae0b50Seschrock * zio tree, and hence we only pick the most important pieces of information for 1601ccae0b50Seschrock * the main summary. More detailed information can always be found by doing a 1602ccae0b50Seschrock * '::print zio' on the underlying zio_t. The columns we display are: 1603ccae0b50Seschrock * 1604ccae0b50Seschrock * ADDRESS TYPE STAGE WAITER 1605ccae0b50Seschrock * 1606ccae0b50Seschrock * The 'address' column is indented by one space for each depth level as we 1607ccae0b50Seschrock * descend down the tree. 1608ccae0b50Seschrock */ 1609fac3008cSeschrock 1610fac3008cSeschrock #define ZIO_MAXDEPTH 16 1611fac3008cSeschrock 1612ccae0b50Seschrock static int 1613ccae0b50Seschrock zio_print_cb(uintptr_t addr, const void *data, void *priv) 1614ccae0b50Seschrock { 1615ccae0b50Seschrock const zio_t *zio = data; 1616ccae0b50Seschrock uintptr_t depth = (uintptr_t)priv; 1617ccae0b50Seschrock mdb_ctf_id_t type_enum, stage_enum; 1618ccae0b50Seschrock const char *type, *stage; 1619ccae0b50Seschrock int maxdepth; 1620ccae0b50Seschrock 1621fac3008cSeschrock maxdepth = sizeof (uintptr_t) * 2 + ZIO_MAXDEPTH; 1622fac3008cSeschrock if (depth > ZIO_MAXDEPTH) 1623fac3008cSeschrock depth = ZIO_MAXDEPTH; 1624ccae0b50Seschrock 1625ccae0b50Seschrock if (mdb_ctf_lookup_by_name("enum zio_type", &type_enum) == -1 || 1626ccae0b50Seschrock mdb_ctf_lookup_by_name("enum zio_stage", &stage_enum) == -1) { 1627ccae0b50Seschrock mdb_warn("failed to lookup zio enums"); 1628ccae0b50Seschrock return (WALK_ERR); 1629ccae0b50Seschrock } 1630ccae0b50Seschrock 1631ccae0b50Seschrock if ((type = mdb_ctf_enum_name(type_enum, zio->io_type)) != NULL) 1632ccae0b50Seschrock type += sizeof ("ZIO_TYPE_") - 1; 1633ccae0b50Seschrock else 1634ccae0b50Seschrock type = "?"; 1635ccae0b50Seschrock 1636ccae0b50Seschrock if ((stage = mdb_ctf_enum_name(stage_enum, zio->io_stage)) != NULL) 1637ccae0b50Seschrock stage += sizeof ("ZIO_STAGE_") - 1; 1638ccae0b50Seschrock else 1639ccae0b50Seschrock stage = "?"; 1640ccae0b50Seschrock 1641ccae0b50Seschrock 1642ccae0b50Seschrock mdb_printf("%*s%-*p %-5s %-22s ", 1643ccae0b50Seschrock depth, "", maxdepth - depth, addr, type, stage); 1644ccae0b50Seschrock if (zio->io_waiter) 1645ccae0b50Seschrock mdb_printf("%?p\n", zio->io_waiter); 1646ccae0b50Seschrock else 1647ccae0b50Seschrock mdb_printf("-\n"); 1648ccae0b50Seschrock 1649ccae0b50Seschrock if (mdb_pwalk("zio_child", zio_print_cb, (void *)(depth + 1), 1650ccae0b50Seschrock addr) != 0) { 1651ccae0b50Seschrock mdb_warn("failed to walk zio_t children at %p\n", addr); 1652ccae0b50Seschrock return (WALK_ERR); 1653ccae0b50Seschrock } 1654ccae0b50Seschrock 1655ccae0b50Seschrock return (WALK_NEXT); 1656ccae0b50Seschrock } 1657ccae0b50Seschrock 1658ccae0b50Seschrock /*ARGSUSED*/ 1659ccae0b50Seschrock static int 1660ccae0b50Seschrock zio_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1661ccae0b50Seschrock { 1662ccae0b50Seschrock zio_t zio; 1663fac3008cSeschrock int maxdepth; 1664fac3008cSeschrock 1665fac3008cSeschrock maxdepth = sizeof (uintptr_t) * 2 + ZIO_MAXDEPTH; 1666ccae0b50Seschrock 1667ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1668ccae0b50Seschrock return (DCMD_USAGE); 1669ccae0b50Seschrock 1670ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio_t), addr) == -1) { 1671ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", addr); 1672ccae0b50Seschrock return (DCMD_ERR); 1673ccae0b50Seschrock } 1674ccae0b50Seschrock 1675fac3008cSeschrock if (DCMD_HDRSPEC(flags)) 1676fac3008cSeschrock mdb_printf("%<u>%-*s %-5s %-22s %-?s%</u>\n", maxdepth, 1677fac3008cSeschrock "ADDRESS", "TYPE", "STAGE", "WAITER"); 1678fac3008cSeschrock 1679ccae0b50Seschrock if (zio_print_cb(addr, &zio, NULL) != WALK_NEXT) 1680ccae0b50Seschrock return (DCMD_ERR); 1681ccae0b50Seschrock 1682ccae0b50Seschrock return (DCMD_OK); 1683ccae0b50Seschrock } 1684ccae0b50Seschrock 1685ccae0b50Seschrock /* 1686ccae0b50Seschrock * [addr]::zio_state 1687ccae0b50Seschrock * 1688ccae0b50Seschrock * Print a summary of all zio_t structures on the system, or for a particular 1689ccae0b50Seschrock * pool. This is equivalent to '::walk zio_root | ::zio'. 1690ccae0b50Seschrock */ 1691ccae0b50Seschrock /*ARGSUSED*/ 1692ccae0b50Seschrock static int 1693ccae0b50Seschrock zio_state(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1694ccae0b50Seschrock { 1695ccae0b50Seschrock /* 1696ccae0b50Seschrock * MDB will remember the last address of the pipeline, so if we don't 1697ccae0b50Seschrock * zero this we'll end up trying to walk zio structures for a 1698ccae0b50Seschrock * non-existent spa_t. 1699ccae0b50Seschrock */ 1700ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1701ccae0b50Seschrock addr = 0; 1702ccae0b50Seschrock 1703ccae0b50Seschrock return (mdb_pwalk_dcmd("zio_root", "zio", argc, argv, addr)); 1704ccae0b50Seschrock } 1705ccae0b50Seschrock 1706fa9e4066Sahrens typedef struct txg_list_walk_data { 1707fa9e4066Sahrens uintptr_t lw_head[TXG_SIZE]; 1708fa9e4066Sahrens int lw_txgoff; 1709fa9e4066Sahrens int lw_maxoff; 1710fa9e4066Sahrens size_t lw_offset; 1711fa9e4066Sahrens void *lw_obj; 1712fa9e4066Sahrens } txg_list_walk_data_t; 1713fa9e4066Sahrens 1714fa9e4066Sahrens static int 1715fa9e4066Sahrens txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff) 1716fa9e4066Sahrens { 1717fa9e4066Sahrens txg_list_walk_data_t *lwd; 1718fa9e4066Sahrens txg_list_t list; 1719fa9e4066Sahrens int i; 1720fa9e4066Sahrens 1721fa9e4066Sahrens lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC); 1722fa9e4066Sahrens if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) { 1723fa9e4066Sahrens mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr); 1724fa9e4066Sahrens return (WALK_ERR); 1725fa9e4066Sahrens } 1726fa9e4066Sahrens 1727fa9e4066Sahrens for (i = 0; i < TXG_SIZE; i++) 1728fa9e4066Sahrens lwd->lw_head[i] = (uintptr_t)list.tl_head[i]; 1729fa9e4066Sahrens lwd->lw_offset = list.tl_offset; 1730fa9e4066Sahrens lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t), 1731fa9e4066Sahrens UM_SLEEP | UM_GC); 1732fa9e4066Sahrens lwd->lw_txgoff = txg; 1733fa9e4066Sahrens lwd->lw_maxoff = maxoff; 1734fa9e4066Sahrens 1735fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1736fa9e4066Sahrens wsp->walk_data = lwd; 1737fa9e4066Sahrens 1738fa9e4066Sahrens return (WALK_NEXT); 1739fa9e4066Sahrens } 1740fa9e4066Sahrens 1741fa9e4066Sahrens static int 1742fa9e4066Sahrens txg_list_walk_init(mdb_walk_state_t *wsp) 1743fa9e4066Sahrens { 1744fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1)); 1745fa9e4066Sahrens } 1746fa9e4066Sahrens 1747fa9e4066Sahrens static int 1748fa9e4066Sahrens txg_list0_walk_init(mdb_walk_state_t *wsp) 1749fa9e4066Sahrens { 1750fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, 0)); 1751fa9e4066Sahrens } 1752fa9e4066Sahrens 1753fa9e4066Sahrens static int 1754fa9e4066Sahrens txg_list1_walk_init(mdb_walk_state_t *wsp) 1755fa9e4066Sahrens { 1756fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 1, 1)); 1757fa9e4066Sahrens } 1758fa9e4066Sahrens 1759fa9e4066Sahrens static int 1760fa9e4066Sahrens txg_list2_walk_init(mdb_walk_state_t *wsp) 1761fa9e4066Sahrens { 1762fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 2, 2)); 1763fa9e4066Sahrens } 1764fa9e4066Sahrens 1765fa9e4066Sahrens static int 1766fa9e4066Sahrens txg_list3_walk_init(mdb_walk_state_t *wsp) 1767fa9e4066Sahrens { 1768fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 3, 3)); 1769fa9e4066Sahrens } 1770fa9e4066Sahrens 1771fa9e4066Sahrens static int 1772fa9e4066Sahrens txg_list_walk_step(mdb_walk_state_t *wsp) 1773fa9e4066Sahrens { 1774fa9e4066Sahrens txg_list_walk_data_t *lwd = wsp->walk_data; 1775fa9e4066Sahrens uintptr_t addr; 1776fa9e4066Sahrens txg_node_t *node; 1777fa9e4066Sahrens int status; 1778fa9e4066Sahrens 1779fa9e4066Sahrens while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) { 1780fa9e4066Sahrens lwd->lw_txgoff++; 1781fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1782fa9e4066Sahrens } 1783fa9e4066Sahrens 1784fa9e4066Sahrens if (wsp->walk_addr == NULL) 1785fa9e4066Sahrens return (WALK_DONE); 1786fa9e4066Sahrens 1787fa9e4066Sahrens addr = wsp->walk_addr - lwd->lw_offset; 1788fa9e4066Sahrens 1789fa9e4066Sahrens if (mdb_vread(lwd->lw_obj, 1790fa9e4066Sahrens lwd->lw_offset + sizeof (txg_node_t), addr) == -1) { 1791fa9e4066Sahrens mdb_warn("failed to read list element at %#lx", addr); 1792fa9e4066Sahrens return (WALK_ERR); 1793fa9e4066Sahrens } 1794fa9e4066Sahrens 1795fa9e4066Sahrens status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata); 1796fa9e4066Sahrens node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset); 1797fa9e4066Sahrens wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff]; 1798fa9e4066Sahrens 1799fa9e4066Sahrens return (status); 1800fa9e4066Sahrens } 1801fa9e4066Sahrens 1802fa9e4066Sahrens /* 1803fa9e4066Sahrens * ::walk spa 1804fa9e4066Sahrens * 1805fa9e4066Sahrens * Walk all named spa_t structures in the namespace. This is nothing more than 1806fa9e4066Sahrens * a layered avl walk. 1807fa9e4066Sahrens */ 1808fa9e4066Sahrens static int 1809fa9e4066Sahrens spa_walk_init(mdb_walk_state_t *wsp) 1810fa9e4066Sahrens { 1811fa9e4066Sahrens GElf_Sym sym; 1812fa9e4066Sahrens 1813fa9e4066Sahrens if (wsp->walk_addr != NULL) { 1814fa9e4066Sahrens mdb_warn("spa walk only supports global walks\n"); 1815fa9e4066Sahrens return (WALK_ERR); 1816fa9e4066Sahrens } 1817fa9e4066Sahrens 1818fa9e4066Sahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) { 1819fa9e4066Sahrens mdb_warn("failed to find symbol 'spa_namespace_avl'"); 1820fa9e4066Sahrens return (WALK_ERR); 1821fa9e4066Sahrens } 1822fa9e4066Sahrens 1823fa9e4066Sahrens wsp->walk_addr = (uintptr_t)sym.st_value; 1824fa9e4066Sahrens 1825fa9e4066Sahrens if (mdb_layered_walk("avl", wsp) == -1) { 1826fa9e4066Sahrens mdb_warn("failed to walk 'avl'\n"); 1827fa9e4066Sahrens return (WALK_ERR); 1828fa9e4066Sahrens } 1829fa9e4066Sahrens 1830fa9e4066Sahrens return (WALK_NEXT); 1831fa9e4066Sahrens } 1832fa9e4066Sahrens 1833fa9e4066Sahrens static int 1834fa9e4066Sahrens spa_walk_step(mdb_walk_state_t *wsp) 1835fa9e4066Sahrens { 1836fa9e4066Sahrens spa_t spa; 1837fa9e4066Sahrens 1838fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), wsp->walk_addr) == -1) { 1839fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", wsp->walk_addr); 1840fa9e4066Sahrens return (WALK_ERR); 1841fa9e4066Sahrens } 1842fa9e4066Sahrens 1843fa9e4066Sahrens return (wsp->walk_callback(wsp->walk_addr, &spa, wsp->walk_cbdata)); 1844fa9e4066Sahrens } 1845fa9e4066Sahrens 1846fa9e4066Sahrens /* 1847ccae0b50Seschrock * [addr]::walk zio 1848ccae0b50Seschrock * 1849ccae0b50Seschrock * Walk all active zio_t structures on the system. This is simply a layered 1850ccae0b50Seschrock * walk on top of ::walk zio_cache, with the optional ability to limit the 1851ccae0b50Seschrock * structures to a particular pool. 1852ccae0b50Seschrock */ 1853ccae0b50Seschrock static int 1854ccae0b50Seschrock zio_walk_init(mdb_walk_state_t *wsp) 1855ccae0b50Seschrock { 1856ccae0b50Seschrock wsp->walk_data = (void *)wsp->walk_addr; 1857ccae0b50Seschrock 1858ccae0b50Seschrock if (mdb_layered_walk("zio_cache", wsp) == -1) { 1859ccae0b50Seschrock mdb_warn("failed to walk 'zio_cache'\n"); 1860ccae0b50Seschrock return (WALK_ERR); 1861ccae0b50Seschrock } 1862ccae0b50Seschrock 1863ccae0b50Seschrock return (WALK_NEXT); 1864ccae0b50Seschrock } 1865ccae0b50Seschrock 1866ccae0b50Seschrock static int 1867ccae0b50Seschrock zio_walk_step(mdb_walk_state_t *wsp) 1868ccae0b50Seschrock { 1869ccae0b50Seschrock zio_t zio; 1870ccae0b50Seschrock 1871ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1872ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1873ccae0b50Seschrock return (WALK_ERR); 1874ccae0b50Seschrock } 1875ccae0b50Seschrock 1876ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1877ccae0b50Seschrock return (WALK_NEXT); 1878ccae0b50Seschrock 1879ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1880ccae0b50Seschrock } 1881ccae0b50Seschrock 1882ccae0b50Seschrock /* 1883ccae0b50Seschrock * ::walk zio_child 1884ccae0b50Seschrock * 1885ccae0b50Seschrock * Walk the children of a zio_t structure. 1886ccae0b50Seschrock */ 1887ccae0b50Seschrock static int 1888ccae0b50Seschrock zio_child_walk_init(mdb_walk_state_t *wsp) 1889ccae0b50Seschrock { 1890ccae0b50Seschrock zio_t zio; 1891ccae0b50Seschrock 1892ccae0b50Seschrock if (wsp->walk_addr == 0) { 1893ccae0b50Seschrock mdb_warn("::walk zio_child doesn't support global walks\n"); 1894ccae0b50Seschrock return (WALK_ERR); 1895ccae0b50Seschrock } 1896ccae0b50Seschrock 1897ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1898ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1899ccae0b50Seschrock return (WALK_ERR); 1900ccae0b50Seschrock } 1901ccae0b50Seschrock 1902ccae0b50Seschrock wsp->walk_addr = (uintptr_t)zio.io_child; 1903ccae0b50Seschrock return (WALK_NEXT); 1904ccae0b50Seschrock } 1905ccae0b50Seschrock 1906ccae0b50Seschrock static int 1907ccae0b50Seschrock zio_sibling_walk_step(mdb_walk_state_t *wsp) 1908ccae0b50Seschrock { 1909ccae0b50Seschrock zio_t zio; 1910ccae0b50Seschrock int status; 1911ccae0b50Seschrock 1912ccae0b50Seschrock if (wsp->walk_addr == NULL) 1913ccae0b50Seschrock return (WALK_DONE); 1914ccae0b50Seschrock 1915ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1916ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1917ccae0b50Seschrock return (WALK_ERR); 1918ccae0b50Seschrock } 1919ccae0b50Seschrock 1920ccae0b50Seschrock status = wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata); 1921ccae0b50Seschrock 1922ccae0b50Seschrock wsp->walk_addr = (uintptr_t)zio.io_sibling_next; 1923ccae0b50Seschrock return (status); 1924ccae0b50Seschrock } 1925ccae0b50Seschrock 1926ccae0b50Seschrock /* 1927ccae0b50Seschrock * [addr]::walk zio_root 1928ccae0b50Seschrock * 1929ccae0b50Seschrock * Walk only root zio_t structures, optionally for a particular spa_t. 1930ccae0b50Seschrock */ 1931ccae0b50Seschrock static int 1932ccae0b50Seschrock zio_walk_root_step(mdb_walk_state_t *wsp) 1933ccae0b50Seschrock { 1934ccae0b50Seschrock zio_t zio; 1935ccae0b50Seschrock 1936ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1937ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1938ccae0b50Seschrock return (WALK_ERR); 1939ccae0b50Seschrock } 1940ccae0b50Seschrock 1941ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1942ccae0b50Seschrock return (WALK_NEXT); 1943ccae0b50Seschrock 1944e14bb325SJeff Bonwick if ((uintptr_t)zio.io_parent != NULL) 1945ccae0b50Seschrock return (WALK_NEXT); 1946ccae0b50Seschrock 1947ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1948ccae0b50Seschrock } 1949ccae0b50Seschrock 195088b7b0f2SMatthew Ahrens #define NICENUM_BUFLEN 6 195188b7b0f2SMatthew Ahrens 195288b7b0f2SMatthew Ahrens static int 1953ff64c0f7SMatthew Ahrens snprintfrac(char *buf, int len, 1954ff64c0f7SMatthew Ahrens uint64_t numerator, uint64_t denom, int frac_digits) 195588b7b0f2SMatthew Ahrens { 1956ff64c0f7SMatthew Ahrens int mul = 1; 195788b7b0f2SMatthew Ahrens int whole, frac, i; 195888b7b0f2SMatthew Ahrens 195988b7b0f2SMatthew Ahrens for (i = frac_digits; i; i--) 196088b7b0f2SMatthew Ahrens mul *= 10; 1961ff64c0f7SMatthew Ahrens whole = numerator / denom; 1962ff64c0f7SMatthew Ahrens frac = mul * numerator / denom - mul * whole; 196388b7b0f2SMatthew Ahrens return (mdb_snprintf(buf, len, "%u.%0*u", whole, frac_digits, frac)); 196488b7b0f2SMatthew Ahrens } 196588b7b0f2SMatthew Ahrens 196688b7b0f2SMatthew Ahrens static void 196788b7b0f2SMatthew Ahrens mdb_nicenum(uint64_t num, char *buf) 196888b7b0f2SMatthew Ahrens { 196988b7b0f2SMatthew Ahrens uint64_t n = num; 197088b7b0f2SMatthew Ahrens int index = 0; 197188b7b0f2SMatthew Ahrens char *u; 197288b7b0f2SMatthew Ahrens 197388b7b0f2SMatthew Ahrens while (n >= 1024) { 197488b7b0f2SMatthew Ahrens n = (n + (1024 / 2)) / 1024; /* Round up or down */ 197588b7b0f2SMatthew Ahrens index++; 197688b7b0f2SMatthew Ahrens } 197788b7b0f2SMatthew Ahrens 197888b7b0f2SMatthew Ahrens u = &" \0K\0M\0G\0T\0P\0E\0"[index*2]; 197988b7b0f2SMatthew Ahrens 198088b7b0f2SMatthew Ahrens if (index == 0) { 198188b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu", 198288b7b0f2SMatthew Ahrens (u_longlong_t)n); 198388b7b0f2SMatthew Ahrens } else if (n < 10 && (num & (num - 1)) != 0) { 1984ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 1985ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 2); 198688b7b0f2SMatthew Ahrens strcat(buf, u); 198788b7b0f2SMatthew Ahrens } else if (n < 100 && (num & (num - 1)) != 0) { 1988ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 1989ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 1); 199088b7b0f2SMatthew Ahrens strcat(buf, u); 199188b7b0f2SMatthew Ahrens } else { 199288b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu%s", 199388b7b0f2SMatthew Ahrens (u_longlong_t)n, u); 199488b7b0f2SMatthew Ahrens } 199588b7b0f2SMatthew Ahrens } 199688b7b0f2SMatthew Ahrens 199788b7b0f2SMatthew Ahrens /* 199888b7b0f2SMatthew Ahrens * ::zfs_blkstats 199988b7b0f2SMatthew Ahrens * 200088b7b0f2SMatthew Ahrens * -v print verbose per-level information 200188b7b0f2SMatthew Ahrens * 200288b7b0f2SMatthew Ahrens */ 200388b7b0f2SMatthew Ahrens static int 200488b7b0f2SMatthew Ahrens zfs_blkstats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 200588b7b0f2SMatthew Ahrens { 200688b7b0f2SMatthew Ahrens boolean_t verbose = B_FALSE; 200788b7b0f2SMatthew Ahrens zfs_all_blkstats_t stats; 200888b7b0f2SMatthew Ahrens dmu_object_type_t t; 200988b7b0f2SMatthew Ahrens zfs_blkstat_t *tzb; 201088b7b0f2SMatthew Ahrens uint64_t ditto; 201188b7b0f2SMatthew Ahrens dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES + 10]; 201288b7b0f2SMatthew Ahrens /* +10 in case it grew */ 201388b7b0f2SMatthew Ahrens 201488b7b0f2SMatthew Ahrens if (mdb_readvar(&dmu_ot, "dmu_ot") == -1) { 201588b7b0f2SMatthew Ahrens mdb_warn("failed to read 'dmu_ot'"); 201688b7b0f2SMatthew Ahrens return (DCMD_ERR); 201788b7b0f2SMatthew Ahrens } 201888b7b0f2SMatthew Ahrens 201988b7b0f2SMatthew Ahrens if (mdb_getopts(argc, argv, 202088b7b0f2SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 202188b7b0f2SMatthew Ahrens NULL) != argc) 202288b7b0f2SMatthew Ahrens return (DCMD_USAGE); 202388b7b0f2SMatthew Ahrens 202488b7b0f2SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 202588b7b0f2SMatthew Ahrens return (DCMD_USAGE); 202688b7b0f2SMatthew Ahrens 202788b7b0f2SMatthew Ahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, addr) || 202888b7b0f2SMatthew Ahrens GETMEMB(addr, struct dsl_pool, dp_blkstats, addr) || 202988b7b0f2SMatthew Ahrens mdb_vread(&stats, sizeof (zfs_all_blkstats_t), addr) == -1) { 203088b7b0f2SMatthew Ahrens mdb_warn("failed to read data at %p;", addr); 203188b7b0f2SMatthew Ahrens mdb_printf("maybe no stats? run \"zpool scrub\" first."); 203288b7b0f2SMatthew Ahrens return (DCMD_ERR); 203388b7b0f2SMatthew Ahrens } 203488b7b0f2SMatthew Ahrens 203588b7b0f2SMatthew Ahrens tzb = &stats.zab_type[DN_MAX_LEVELS][DMU_OT_NUMTYPES]; 203688b7b0f2SMatthew Ahrens if (tzb->zb_gangs != 0) { 203788b7b0f2SMatthew Ahrens mdb_printf("Ganged blocks: %llu\n", 203888b7b0f2SMatthew Ahrens (longlong_t)tzb->zb_gangs); 203988b7b0f2SMatthew Ahrens } 204088b7b0f2SMatthew Ahrens 204188b7b0f2SMatthew Ahrens ditto = tzb->zb_ditto_2_of_2_samevdev + tzb->zb_ditto_2_of_3_samevdev + 204288b7b0f2SMatthew Ahrens tzb->zb_ditto_3_of_3_samevdev; 204388b7b0f2SMatthew Ahrens if (ditto != 0) { 204488b7b0f2SMatthew Ahrens mdb_printf("Dittoed blocks on same vdev: %llu\n", 204588b7b0f2SMatthew Ahrens (longlong_t)ditto); 204688b7b0f2SMatthew Ahrens } 204788b7b0f2SMatthew Ahrens 204888b7b0f2SMatthew Ahrens mdb_printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 204988b7b0f2SMatthew Ahrens "\t avg\t comp\t%%Total\tType\n"); 205088b7b0f2SMatthew Ahrens 205188b7b0f2SMatthew Ahrens for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 205288b7b0f2SMatthew Ahrens char csize[NICENUM_BUFLEN], lsize[NICENUM_BUFLEN]; 205388b7b0f2SMatthew Ahrens char psize[NICENUM_BUFLEN], asize[NICENUM_BUFLEN]; 205488b7b0f2SMatthew Ahrens char avg[NICENUM_BUFLEN]; 205588b7b0f2SMatthew Ahrens char comp[NICENUM_BUFLEN], pct[NICENUM_BUFLEN]; 205688b7b0f2SMatthew Ahrens char typename[64]; 205788b7b0f2SMatthew Ahrens int l; 205888b7b0f2SMatthew Ahrens 205988b7b0f2SMatthew Ahrens 206088b7b0f2SMatthew Ahrens if (t == DMU_OT_DEFERRED) 206188b7b0f2SMatthew Ahrens strcpy(typename, "deferred free"); 206288b7b0f2SMatthew Ahrens else if (t == DMU_OT_TOTAL) 206388b7b0f2SMatthew Ahrens strcpy(typename, "Total"); 206488b7b0f2SMatthew Ahrens else if (mdb_readstr(typename, sizeof (typename), 206588b7b0f2SMatthew Ahrens (uintptr_t)dmu_ot[t].ot_name) == -1) { 206688b7b0f2SMatthew Ahrens mdb_warn("failed to read type name"); 206788b7b0f2SMatthew Ahrens return (DCMD_ERR); 206888b7b0f2SMatthew Ahrens } 206988b7b0f2SMatthew Ahrens 207088b7b0f2SMatthew Ahrens if (stats.zab_type[DN_MAX_LEVELS][t].zb_asize == 0) 207188b7b0f2SMatthew Ahrens continue; 207288b7b0f2SMatthew Ahrens 207388b7b0f2SMatthew Ahrens for (l = -1; l < DN_MAX_LEVELS; l++) { 207488b7b0f2SMatthew Ahrens int level = (l == -1 ? DN_MAX_LEVELS : l); 207588b7b0f2SMatthew Ahrens zfs_blkstat_t *zb = &stats.zab_type[level][t]; 207688b7b0f2SMatthew Ahrens 207788b7b0f2SMatthew Ahrens if (zb->zb_asize == 0) 207888b7b0f2SMatthew Ahrens continue; 207988b7b0f2SMatthew Ahrens 208088b7b0f2SMatthew Ahrens /* 208188b7b0f2SMatthew Ahrens * Don't print each level unless requested. 208288b7b0f2SMatthew Ahrens */ 208388b7b0f2SMatthew Ahrens if (!verbose && level != DN_MAX_LEVELS) 208488b7b0f2SMatthew Ahrens continue; 208588b7b0f2SMatthew Ahrens 208688b7b0f2SMatthew Ahrens /* 208788b7b0f2SMatthew Ahrens * If all the space is level 0, don't print the 208888b7b0f2SMatthew Ahrens * level 0 separately. 208988b7b0f2SMatthew Ahrens */ 209088b7b0f2SMatthew Ahrens if (level == 0 && zb->zb_asize == 209188b7b0f2SMatthew Ahrens stats.zab_type[DN_MAX_LEVELS][t].zb_asize) 209288b7b0f2SMatthew Ahrens continue; 209388b7b0f2SMatthew Ahrens 209488b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_count, csize); 209588b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_lsize, lsize); 209688b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_psize, psize); 209788b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize, asize); 209888b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2099ff64c0f7SMatthew Ahrens (void) snprintfrac(comp, NICENUM_BUFLEN, 2100ff64c0f7SMatthew Ahrens zb->zb_lsize, zb->zb_psize, 2); 2101ff64c0f7SMatthew Ahrens (void) snprintfrac(pct, NICENUM_BUFLEN, 2102ff64c0f7SMatthew Ahrens 100 * zb->zb_asize, tzb->zb_asize, 2); 210388b7b0f2SMatthew Ahrens 210488b7b0f2SMatthew Ahrens mdb_printf("%6s\t%5s\t%5s\t%5s\t%5s" 210588b7b0f2SMatthew Ahrens "\t%5s\t%6s\t", 210688b7b0f2SMatthew Ahrens csize, lsize, psize, asize, avg, comp, pct); 210788b7b0f2SMatthew Ahrens 210888b7b0f2SMatthew Ahrens if (level == DN_MAX_LEVELS) 210988b7b0f2SMatthew Ahrens mdb_printf("%s\n", typename); 211088b7b0f2SMatthew Ahrens else 211188b7b0f2SMatthew Ahrens mdb_printf(" L%d %s\n", 211288b7b0f2SMatthew Ahrens level, typename); 211388b7b0f2SMatthew Ahrens } 211488b7b0f2SMatthew Ahrens } 211588b7b0f2SMatthew Ahrens 211688b7b0f2SMatthew Ahrens return (DCMD_OK); 211788b7b0f2SMatthew Ahrens } 211888b7b0f2SMatthew Ahrens 2119ccae0b50Seschrock /* 2120fa9e4066Sahrens * MDB module linkage information: 2121fa9e4066Sahrens * 2122fa9e4066Sahrens * We declare a list of structures describing our dcmds, and a function 2123fa9e4066Sahrens * named _mdb_init to return a pointer to our module information. 2124fa9e4066Sahrens */ 2125fa9e4066Sahrens 2126fa9e4066Sahrens static const mdb_dcmd_t dcmds[] = { 212791ebeef5Sahrens { "arc", "[-bkmg]", "print ARC variables", arc_print }, 2128fa9e4066Sahrens { "blkptr", ":", "print blkptr_t", blkptr }, 2129fa9e4066Sahrens { "dbuf", ":", "print dmu_buf_impl_t", dbuf }, 2130fa9e4066Sahrens { "dbuf_stats", ":", "dbuf stats", dbuf_stats }, 2131fa9e4066Sahrens { "dbufs", 21323cb34c60Sahrens "\t[-O objset_impl_t*] [-n objset_name | \"mos\"] " 21333cb34c60Sahrens "[-o object | \"mdn\"] \n" 2134fa9e4066Sahrens "\t[-l level] [-b blkid | \"bonus\"]", 213591ebeef5Sahrens "find dmu_buf_impl_t's that match specified criteria", dbufs }, 2136fa9e4066Sahrens { "abuf_find", "dva_word[0] dva_word[1]", 2137fa9e4066Sahrens "find arc_buf_hdr_t of a specified DVA", 2138fa9e4066Sahrens abuf_find }, 2139fa9e4066Sahrens { "spa", "?[-cv]", "spa_t summary", spa_print }, 2140fa9e4066Sahrens { "spa_config", ":", "print spa_t configuration", spa_print_config }, 2141fa9e4066Sahrens { "spa_verify", ":", "verify spa_t consistency", spa_verify }, 2142fa9e4066Sahrens { "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space }, 2143fa9e4066Sahrens { "spa_vdevs", ":", "given a spa_t, print vdev summary", spa_vdevs }, 214491ebeef5Sahrens { "vdev", ":[-re]\n" 214591ebeef5Sahrens "\t-r display recursively\n" 214691ebeef5Sahrens "\t-e print statistics\n", 214791ebeef5Sahrens "vdev_t summary", vdev_print }, 2148ccae0b50Seschrock { "zio", ":", "zio_t summary", zio_print }, 2149ccae0b50Seschrock { "zio_state", "?", "print out all zio_t structures on system or " 2150ccae0b50Seschrock "for a particular pool", zio_state }, 2151fa9e4066Sahrens { "zio_pipeline", ":", "decode a zio pipeline", zio_pipeline }, 215288b7b0f2SMatthew Ahrens { "zfs_blkstats", ":[-v]", 215388b7b0f2SMatthew Ahrens "given a spa_t, print block type stats from last scrub", 215488b7b0f2SMatthew Ahrens zfs_blkstats }, 2155614409b5Sahrens { "zfs_params", "", "print zfs tunable parameters", zfs_params }, 2156fa9e4066Sahrens { NULL } 2157fa9e4066Sahrens }; 2158fa9e4066Sahrens 2159fa9e4066Sahrens static const mdb_walker_t walkers[] = { 2160fa9e4066Sahrens /* 2161fa9e4066Sahrens * In userland, there is no generic provider of list_t walkers, so we 2162fa9e4066Sahrens * need to add it. 2163fa9e4066Sahrens */ 2164fa9e4066Sahrens #ifndef _KERNEL 2165fa9e4066Sahrens { LIST_WALK_NAME, LIST_WALK_DESC, 2166fa9e4066Sahrens list_walk_init, list_walk_step, list_walk_fini }, 2167fa9e4066Sahrens #endif 2168fa9e4066Sahrens { "zms_freelist", "walk ZFS metaslab freelist", 21695f5f7a6fSahrens freelist_walk_init, freelist_walk_step, NULL }, 2170fa9e4066Sahrens { "txg_list", "given any txg_list_t *, walk all entries in all txgs", 21715f5f7a6fSahrens txg_list_walk_init, txg_list_walk_step, NULL }, 2172fa9e4066Sahrens { "txg_list0", "given any txg_list_t *, walk all entries in txg 0", 21735f5f7a6fSahrens txg_list0_walk_init, txg_list_walk_step, NULL }, 2174fa9e4066Sahrens { "txg_list1", "given any txg_list_t *, walk all entries in txg 1", 21755f5f7a6fSahrens txg_list1_walk_init, txg_list_walk_step, NULL }, 2176fa9e4066Sahrens { "txg_list2", "given any txg_list_t *, walk all entries in txg 2", 21775f5f7a6fSahrens txg_list2_walk_init, txg_list_walk_step, NULL }, 2178fa9e4066Sahrens { "txg_list3", "given any txg_list_t *, walk all entries in txg 3", 21795f5f7a6fSahrens txg_list3_walk_init, txg_list_walk_step, NULL }, 2180ccae0b50Seschrock { "zio", "walk all zio structures, optionally for a particular spa_t", 2181ccae0b50Seschrock zio_walk_init, zio_walk_step, NULL }, 2182ccae0b50Seschrock { "zio_child", "walk children of a zio_t structure", 2183ccae0b50Seschrock zio_child_walk_init, zio_sibling_walk_step, NULL }, 2184ccae0b50Seschrock { "zio_root", "walk all root zio_t structures, optionally for a " 2185ccae0b50Seschrock "particular spa_t", 2186ccae0b50Seschrock zio_walk_init, zio_walk_root_step, NULL }, 2187fa9e4066Sahrens { "spa", "walk all spa_t entries in the namespace", 2188fa9e4066Sahrens spa_walk_init, spa_walk_step, NULL }, 21895f5f7a6fSahrens { "metaslab", "given a spa_t *, walk all metaslab_t structures", 21905f5f7a6fSahrens metaslab_walk_init, metaslab_walk_step, NULL }, 2191fa9e4066Sahrens { NULL } 2192fa9e4066Sahrens }; 2193fa9e4066Sahrens 2194fa9e4066Sahrens static const mdb_modinfo_t modinfo = { 2195fa9e4066Sahrens MDB_API_VERSION, dcmds, walkers 2196fa9e4066Sahrens }; 2197fa9e4066Sahrens 2198fa9e4066Sahrens const mdb_modinfo_t * 2199fa9e4066Sahrens _mdb_init(void) 2200fa9e4066Sahrens { 2201fa9e4066Sahrens return (&modinfo); 2202fa9e4066Sahrens } 2203