1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include "statcommon.h" 30*0Sstevel@tonic-gate #include "dsr.h" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <sys/dklabel.h> 33*0Sstevel@tonic-gate #include <sys/dktp/fdisk.h> 34*0Sstevel@tonic-gate #include <stdlib.h> 35*0Sstevel@tonic-gate #include <stdarg.h> 36*0Sstevel@tonic-gate #include <unistd.h> 37*0Sstevel@tonic-gate #include <strings.h> 38*0Sstevel@tonic-gate #include <errno.h> 39*0Sstevel@tonic-gate #include <limits.h> 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate static void insert_iodev(struct snapshot *ss, struct iodev_snapshot *iodev); 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate static struct iodev_snapshot * 44*0Sstevel@tonic-gate make_controller(int cid) 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate struct iodev_snapshot *new; 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate new = safe_alloc(sizeof (struct iodev_snapshot)); 49*0Sstevel@tonic-gate (void) memset(new, 0, sizeof (struct iodev_snapshot)); 50*0Sstevel@tonic-gate new->is_type = IODEV_CONTROLLER; 51*0Sstevel@tonic-gate new->is_id.id = cid; 52*0Sstevel@tonic-gate new->is_parent_id.id = IODEV_NO_ID; 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate (void) snprintf(new->is_name, sizeof (new->is_name), "c%d", cid); 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate return (new); 57*0Sstevel@tonic-gate } 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate static struct iodev_snapshot * 60*0Sstevel@tonic-gate find_iodev_by_name(struct iodev_snapshot *list, const char *name) 61*0Sstevel@tonic-gate { 62*0Sstevel@tonic-gate struct iodev_snapshot *pos; 63*0Sstevel@tonic-gate struct iodev_snapshot *pos2; 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate for (pos = list; pos; pos = pos->is_next) { 66*0Sstevel@tonic-gate if (strcmp(pos->is_name, name) == 0) 67*0Sstevel@tonic-gate return (pos); 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate pos2 = find_iodev_by_name(pos->is_children, name); 70*0Sstevel@tonic-gate if (pos2 != NULL) 71*0Sstevel@tonic-gate return (pos2); 72*0Sstevel@tonic-gate } 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate return (NULL); 75*0Sstevel@tonic-gate } 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate static enum iodev_type 78*0Sstevel@tonic-gate parent_iodev_type(enum iodev_type type) 79*0Sstevel@tonic-gate { 80*0Sstevel@tonic-gate switch (type) { 81*0Sstevel@tonic-gate case IODEV_CONTROLLER: return (0); 82*0Sstevel@tonic-gate case IODEV_NFS: return (0); 83*0Sstevel@tonic-gate case IODEV_TAPE: return (0); 84*0Sstevel@tonic-gate case IODEV_IOPATH: return (IODEV_DISK); 85*0Sstevel@tonic-gate case IODEV_DISK: return (IODEV_CONTROLLER); 86*0Sstevel@tonic-gate case IODEV_PARTITION: return (IODEV_DISK); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate return (IODEV_UNKNOWN); 89*0Sstevel@tonic-gate } 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate static int 92*0Sstevel@tonic-gate id_match(struct iodev_id *id1, struct iodev_id *id2) 93*0Sstevel@tonic-gate { 94*0Sstevel@tonic-gate return (id1->id == id2->id && 95*0Sstevel@tonic-gate strcmp(id1->tid, id2->tid) == 0); 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate 98*0Sstevel@tonic-gate static struct iodev_snapshot * 99*0Sstevel@tonic-gate find_parent(struct snapshot *ss, struct iodev_snapshot *iodev) 100*0Sstevel@tonic-gate { 101*0Sstevel@tonic-gate enum iodev_type parent_type = parent_iodev_type(iodev->is_type); 102*0Sstevel@tonic-gate struct iodev_snapshot *pos; 103*0Sstevel@tonic-gate struct iodev_snapshot *pos2; 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate if (parent_type == 0 || parent_type == IODEV_UNKNOWN) 106*0Sstevel@tonic-gate return (NULL); 107*0Sstevel@tonic-gate 108*0Sstevel@tonic-gate if (iodev->is_parent_id.id == IODEV_NO_ID && 109*0Sstevel@tonic-gate iodev->is_parent_id.tid[0] == '\0') 110*0Sstevel@tonic-gate return (NULL); 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate if (parent_type == IODEV_CONTROLLER) { 113*0Sstevel@tonic-gate for (pos = ss->s_iodevs; pos; pos = pos->is_next) { 114*0Sstevel@tonic-gate if (pos->is_type != IODEV_CONTROLLER) 115*0Sstevel@tonic-gate continue; 116*0Sstevel@tonic-gate if (pos->is_id.id != iodev->is_parent_id.id) 117*0Sstevel@tonic-gate continue; 118*0Sstevel@tonic-gate return (pos); 119*0Sstevel@tonic-gate } 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate if (!(ss->s_types & SNAP_CONTROLLERS)) 122*0Sstevel@tonic-gate return (NULL); 123*0Sstevel@tonic-gate 124*0Sstevel@tonic-gate pos = make_controller(iodev->is_parent_id.id); 125*0Sstevel@tonic-gate insert_iodev(ss, pos); 126*0Sstevel@tonic-gate return (pos); 127*0Sstevel@tonic-gate } 128*0Sstevel@tonic-gate 129*0Sstevel@tonic-gate /* IODEV_DISK parent */ 130*0Sstevel@tonic-gate for (pos = ss->s_iodevs; pos; pos = pos->is_next) { 131*0Sstevel@tonic-gate if (id_match(&iodev->is_parent_id, &pos->is_id) && 132*0Sstevel@tonic-gate pos->is_type == IODEV_DISK) 133*0Sstevel@tonic-gate return (pos); 134*0Sstevel@tonic-gate if (pos->is_type != IODEV_CONTROLLER) 135*0Sstevel@tonic-gate continue; 136*0Sstevel@tonic-gate for (pos2 = pos->is_children; pos2; pos2 = pos2->is_next) { 137*0Sstevel@tonic-gate if (pos2->is_type != IODEV_DISK) 138*0Sstevel@tonic-gate continue; 139*0Sstevel@tonic-gate if (id_match(&iodev->is_parent_id, &pos2->is_id)) 140*0Sstevel@tonic-gate return (pos2); 141*0Sstevel@tonic-gate } 142*0Sstevel@tonic-gate } 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate return (NULL); 145*0Sstevel@tonic-gate } 146*0Sstevel@tonic-gate 147*0Sstevel@tonic-gate static void 148*0Sstevel@tonic-gate list_del(struct iodev_snapshot **list, struct iodev_snapshot *pos) 149*0Sstevel@tonic-gate { 150*0Sstevel@tonic-gate if (*list == pos) 151*0Sstevel@tonic-gate *list = pos->is_next; 152*0Sstevel@tonic-gate if (pos->is_next) 153*0Sstevel@tonic-gate pos->is_next->is_prev = pos->is_prev; 154*0Sstevel@tonic-gate if (pos->is_prev) 155*0Sstevel@tonic-gate pos->is_prev->is_next = pos->is_next; 156*0Sstevel@tonic-gate pos->is_prev = pos->is_next = NULL; 157*0Sstevel@tonic-gate } 158*0Sstevel@tonic-gate 159*0Sstevel@tonic-gate static void 160*0Sstevel@tonic-gate insert_before(struct iodev_snapshot **list, struct iodev_snapshot *pos, 161*0Sstevel@tonic-gate struct iodev_snapshot *new) 162*0Sstevel@tonic-gate { 163*0Sstevel@tonic-gate if (pos == NULL) { 164*0Sstevel@tonic-gate new->is_prev = new->is_next = NULL; 165*0Sstevel@tonic-gate *list = new; 166*0Sstevel@tonic-gate return; 167*0Sstevel@tonic-gate } 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate new->is_next = pos; 170*0Sstevel@tonic-gate new->is_prev = pos->is_prev; 171*0Sstevel@tonic-gate if (pos->is_prev) 172*0Sstevel@tonic-gate pos->is_prev->is_next = new; 173*0Sstevel@tonic-gate else 174*0Sstevel@tonic-gate *list = new; 175*0Sstevel@tonic-gate pos->is_prev = new; 176*0Sstevel@tonic-gate } 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate static void 179*0Sstevel@tonic-gate insert_after(struct iodev_snapshot **list, struct iodev_snapshot *pos, 180*0Sstevel@tonic-gate struct iodev_snapshot *new) 181*0Sstevel@tonic-gate { 182*0Sstevel@tonic-gate if (pos == NULL) { 183*0Sstevel@tonic-gate new->is_prev = new->is_next = NULL; 184*0Sstevel@tonic-gate *list = new; 185*0Sstevel@tonic-gate return; 186*0Sstevel@tonic-gate } 187*0Sstevel@tonic-gate 188*0Sstevel@tonic-gate new->is_next = pos->is_next; 189*0Sstevel@tonic-gate new->is_prev = pos; 190*0Sstevel@tonic-gate if (pos->is_next) 191*0Sstevel@tonic-gate pos->is_next->is_prev = new; 192*0Sstevel@tonic-gate pos->is_next = new; 193*0Sstevel@tonic-gate } 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate static void 196*0Sstevel@tonic-gate insert_into(struct iodev_snapshot **list, struct iodev_snapshot *iodev) 197*0Sstevel@tonic-gate { 198*0Sstevel@tonic-gate struct iodev_snapshot *tmp = *list; 199*0Sstevel@tonic-gate if (*list == NULL) { 200*0Sstevel@tonic-gate *list = iodev; 201*0Sstevel@tonic-gate return; 202*0Sstevel@tonic-gate } 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate for (;;) { 205*0Sstevel@tonic-gate if (iodev_cmp(tmp, iodev) > 0) { 206*0Sstevel@tonic-gate insert_before(list, tmp, iodev); 207*0Sstevel@tonic-gate return; 208*0Sstevel@tonic-gate } 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate if (tmp->is_next == NULL) 211*0Sstevel@tonic-gate break; 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate tmp = tmp->is_next; 214*0Sstevel@tonic-gate } 215*0Sstevel@tonic-gate 216*0Sstevel@tonic-gate insert_after(list, tmp, iodev); 217*0Sstevel@tonic-gate } 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate static int 220*0Sstevel@tonic-gate disk_or_partition(enum iodev_type type) 221*0Sstevel@tonic-gate { 222*0Sstevel@tonic-gate return (type == IODEV_DISK || type == IODEV_PARTITION); 223*0Sstevel@tonic-gate } 224*0Sstevel@tonic-gate 225*0Sstevel@tonic-gate static void 226*0Sstevel@tonic-gate insert_iodev(struct snapshot *ss, struct iodev_snapshot *iodev) 227*0Sstevel@tonic-gate { 228*0Sstevel@tonic-gate struct iodev_snapshot *parent = find_parent(ss, iodev); 229*0Sstevel@tonic-gate struct iodev_snapshot **list; 230*0Sstevel@tonic-gate 231*0Sstevel@tonic-gate if (parent != NULL) { 232*0Sstevel@tonic-gate list = &parent->is_children; 233*0Sstevel@tonic-gate parent->is_nr_children++; 234*0Sstevel@tonic-gate } else { 235*0Sstevel@tonic-gate list = &ss->s_iodevs; 236*0Sstevel@tonic-gate ss->s_nr_iodevs++; 237*0Sstevel@tonic-gate } 238*0Sstevel@tonic-gate 239*0Sstevel@tonic-gate insert_into(list, iodev); 240*0Sstevel@tonic-gate } 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate static int 243*0Sstevel@tonic-gate iodev_match(struct iodev_snapshot *dev, struct iodev_filter *df) 244*0Sstevel@tonic-gate { 245*0Sstevel@tonic-gate size_t i; 246*0Sstevel@tonic-gate int is_floppy = (strncmp(dev->is_name, "fd", 2) == 0); 247*0Sstevel@tonic-gate 248*0Sstevel@tonic-gate /* no filter, pass */ 249*0Sstevel@tonic-gate if (df == NULL) 250*0Sstevel@tonic-gate return (1); 251*0Sstevel@tonic-gate 252*0Sstevel@tonic-gate /* no filtered names, pass if not floppy and skipped */ 253*0Sstevel@tonic-gate if (df->if_nr_names == NULL) 254*0Sstevel@tonic-gate return (!(df->if_skip_floppy && is_floppy)); 255*0Sstevel@tonic-gate 256*0Sstevel@tonic-gate for (i = 0; i < df->if_nr_names; i++) { 257*0Sstevel@tonic-gate if (strcmp(dev->is_name, df->if_names[i]) == 0) 258*0Sstevel@tonic-gate return (1); 259*0Sstevel@tonic-gate if (dev->is_pretty != NULL && 260*0Sstevel@tonic-gate strcmp(dev->is_pretty, df->if_names[i]) == 0) 261*0Sstevel@tonic-gate return (1); 262*0Sstevel@tonic-gate } 263*0Sstevel@tonic-gate 264*0Sstevel@tonic-gate /* not found in specified names, fail match */ 265*0Sstevel@tonic-gate return (0); 266*0Sstevel@tonic-gate } 267*0Sstevel@tonic-gate 268*0Sstevel@tonic-gate /* select which I/O devices to collect stats for */ 269*0Sstevel@tonic-gate static void 270*0Sstevel@tonic-gate choose_iodevs(struct snapshot *ss, struct iodev_snapshot *iodevs, 271*0Sstevel@tonic-gate struct iodev_filter *df) 272*0Sstevel@tonic-gate { 273*0Sstevel@tonic-gate struct iodev_snapshot *pos = iodevs; 274*0Sstevel@tonic-gate int nr_iodevs = df ? df->if_max_iodevs : UNLIMITED_IODEVS; 275*0Sstevel@tonic-gate 276*0Sstevel@tonic-gate if (nr_iodevs == UNLIMITED_IODEVS) 277*0Sstevel@tonic-gate nr_iodevs = INT_MAX; 278*0Sstevel@tonic-gate 279*0Sstevel@tonic-gate while (pos && nr_iodevs) { 280*0Sstevel@tonic-gate struct iodev_snapshot *tmp = pos; 281*0Sstevel@tonic-gate pos = pos->is_next; 282*0Sstevel@tonic-gate 283*0Sstevel@tonic-gate if (!iodev_match(tmp, df)) 284*0Sstevel@tonic-gate continue; 285*0Sstevel@tonic-gate 286*0Sstevel@tonic-gate list_del(&iodevs, tmp); 287*0Sstevel@tonic-gate insert_iodev(ss, tmp); 288*0Sstevel@tonic-gate 289*0Sstevel@tonic-gate --nr_iodevs; 290*0Sstevel@tonic-gate } 291*0Sstevel@tonic-gate 292*0Sstevel@tonic-gate pos = iodevs; 293*0Sstevel@tonic-gate 294*0Sstevel@tonic-gate /* now insert any iodevs into the remaining slots */ 295*0Sstevel@tonic-gate while (pos && nr_iodevs) { 296*0Sstevel@tonic-gate struct iodev_snapshot *tmp = pos; 297*0Sstevel@tonic-gate pos = pos->is_next; 298*0Sstevel@tonic-gate 299*0Sstevel@tonic-gate if (df && df->if_skip_floppy && 300*0Sstevel@tonic-gate strncmp(tmp->is_name, "fd", 2) == 0) 301*0Sstevel@tonic-gate continue; 302*0Sstevel@tonic-gate 303*0Sstevel@tonic-gate list_del(&iodevs, tmp); 304*0Sstevel@tonic-gate insert_iodev(ss, tmp); 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate --nr_iodevs; 307*0Sstevel@tonic-gate } 308*0Sstevel@tonic-gate 309*0Sstevel@tonic-gate /* clear the unwanted ones */ 310*0Sstevel@tonic-gate pos = iodevs; 311*0Sstevel@tonic-gate while (pos) { 312*0Sstevel@tonic-gate struct iodev_snapshot *tmp = pos; 313*0Sstevel@tonic-gate pos = pos->is_next; 314*0Sstevel@tonic-gate free_iodev(tmp); 315*0Sstevel@tonic-gate } 316*0Sstevel@tonic-gate } 317*0Sstevel@tonic-gate 318*0Sstevel@tonic-gate static int 319*0Sstevel@tonic-gate collate_controller(struct iodev_snapshot *controller, 320*0Sstevel@tonic-gate struct iodev_snapshot *disk) 321*0Sstevel@tonic-gate { 322*0Sstevel@tonic-gate controller->is_stats.nread += disk->is_stats.nread; 323*0Sstevel@tonic-gate controller->is_stats.nwritten += disk->is_stats.nwritten; 324*0Sstevel@tonic-gate controller->is_stats.reads += disk->is_stats.reads; 325*0Sstevel@tonic-gate controller->is_stats.writes += disk->is_stats.writes; 326*0Sstevel@tonic-gate controller->is_stats.wtime += disk->is_stats.wtime; 327*0Sstevel@tonic-gate controller->is_stats.wlentime += disk->is_stats.wlentime; 328*0Sstevel@tonic-gate controller->is_stats.rtime += disk->is_stats.rtime; 329*0Sstevel@tonic-gate controller->is_stats.rlentime += disk->is_stats.rlentime; 330*0Sstevel@tonic-gate controller->is_crtime += disk->is_crtime; 331*0Sstevel@tonic-gate controller->is_snaptime += disk->is_snaptime; 332*0Sstevel@tonic-gate if (kstat_add(&disk->is_errors, &controller->is_errors)) 333*0Sstevel@tonic-gate return (errno); 334*0Sstevel@tonic-gate return (0); 335*0Sstevel@tonic-gate } 336*0Sstevel@tonic-gate 337*0Sstevel@tonic-gate static int 338*0Sstevel@tonic-gate acquire_iodev_stats(struct iodev_snapshot *list, kstat_ctl_t *kc) 339*0Sstevel@tonic-gate { 340*0Sstevel@tonic-gate struct iodev_snapshot *pos; 341*0Sstevel@tonic-gate int err = 0; 342*0Sstevel@tonic-gate 343*0Sstevel@tonic-gate for (pos = list; pos; pos = pos->is_next) { 344*0Sstevel@tonic-gate /* controllers don't have stats (yet) */ 345*0Sstevel@tonic-gate if (pos->is_ksp != NULL) { 346*0Sstevel@tonic-gate if (kstat_read(kc, pos->is_ksp, &pos->is_stats) == -1) 347*0Sstevel@tonic-gate return (errno); 348*0Sstevel@tonic-gate /* make sure crtime/snaptime is updated */ 349*0Sstevel@tonic-gate pos->is_crtime = pos->is_ksp->ks_crtime; 350*0Sstevel@tonic-gate pos->is_snaptime = pos->is_ksp->ks_snaptime; 351*0Sstevel@tonic-gate } 352*0Sstevel@tonic-gate 353*0Sstevel@tonic-gate if ((err = acquire_iodev_stats(pos->is_children, kc))) 354*0Sstevel@tonic-gate return (err); 355*0Sstevel@tonic-gate 356*0Sstevel@tonic-gate if (pos->is_type == IODEV_CONTROLLER) { 357*0Sstevel@tonic-gate struct iodev_snapshot *pos2 = pos->is_children; 358*0Sstevel@tonic-gate 359*0Sstevel@tonic-gate for (; pos2; pos2 = pos2->is_next) { 360*0Sstevel@tonic-gate if ((err = collate_controller(pos, pos2))) 361*0Sstevel@tonic-gate return (err); 362*0Sstevel@tonic-gate } 363*0Sstevel@tonic-gate } 364*0Sstevel@tonic-gate } 365*0Sstevel@tonic-gate 366*0Sstevel@tonic-gate return (0); 367*0Sstevel@tonic-gate } 368*0Sstevel@tonic-gate 369*0Sstevel@tonic-gate static int 370*0Sstevel@tonic-gate acquire_iodev_errors(struct snapshot *ss, kstat_ctl_t *kc) 371*0Sstevel@tonic-gate { 372*0Sstevel@tonic-gate kstat_t *ksp; 373*0Sstevel@tonic-gate 374*0Sstevel@tonic-gate if (!(ss->s_types && SNAP_IODEV_ERRORS)) 375*0Sstevel@tonic-gate return (0); 376*0Sstevel@tonic-gate 377*0Sstevel@tonic-gate for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { 378*0Sstevel@tonic-gate char kstat_name[KSTAT_STRLEN]; 379*0Sstevel@tonic-gate char *dname = kstat_name; 380*0Sstevel@tonic-gate char *ename = ksp->ks_name; 381*0Sstevel@tonic-gate struct iodev_snapshot *iodev; 382*0Sstevel@tonic-gate 383*0Sstevel@tonic-gate if (ksp->ks_type != KSTAT_TYPE_NAMED) 384*0Sstevel@tonic-gate continue; 385*0Sstevel@tonic-gate if (strncmp(ksp->ks_class, "device_error", 12) != 0 && 386*0Sstevel@tonic-gate strncmp(ksp->ks_class, "iopath_error", 12) != 0) 387*0Sstevel@tonic-gate continue; 388*0Sstevel@tonic-gate 389*0Sstevel@tonic-gate /* 390*0Sstevel@tonic-gate * Some drivers may not follow the naming convention 391*0Sstevel@tonic-gate * for error kstats (i.e., drivername,err) so 392*0Sstevel@tonic-gate * be sure we don't walk off the end. 393*0Sstevel@tonic-gate */ 394*0Sstevel@tonic-gate while (*ename && *ename != ',') { 395*0Sstevel@tonic-gate *dname = *ename; 396*0Sstevel@tonic-gate dname++; 397*0Sstevel@tonic-gate ename++; 398*0Sstevel@tonic-gate } 399*0Sstevel@tonic-gate *dname = '\0'; 400*0Sstevel@tonic-gate 401*0Sstevel@tonic-gate iodev = find_iodev_by_name(ss->s_iodevs, kstat_name); 402*0Sstevel@tonic-gate 403*0Sstevel@tonic-gate if (iodev == NULL) 404*0Sstevel@tonic-gate continue; 405*0Sstevel@tonic-gate 406*0Sstevel@tonic-gate if (kstat_read(kc, ksp, NULL) == -1) 407*0Sstevel@tonic-gate return (errno); 408*0Sstevel@tonic-gate if (kstat_copy(ksp, &iodev->is_errors) == -1) 409*0Sstevel@tonic-gate return (errno); 410*0Sstevel@tonic-gate } 411*0Sstevel@tonic-gate 412*0Sstevel@tonic-gate return (0); 413*0Sstevel@tonic-gate } 414*0Sstevel@tonic-gate 415*0Sstevel@tonic-gate static void 416*0Sstevel@tonic-gate get_ids(struct iodev_snapshot *iodev, const char *pretty) 417*0Sstevel@tonic-gate { 418*0Sstevel@tonic-gate int ctr, disk, slice, ret; 419*0Sstevel@tonic-gate char *target; 420*0Sstevel@tonic-gate const char *p1; 421*0Sstevel@tonic-gate const char *p2; 422*0Sstevel@tonic-gate 423*0Sstevel@tonic-gate if (pretty == NULL) 424*0Sstevel@tonic-gate return; 425*0Sstevel@tonic-gate 426*0Sstevel@tonic-gate if (sscanf(pretty, "c%d", &ctr) != 1) 427*0Sstevel@tonic-gate return; 428*0Sstevel@tonic-gate 429*0Sstevel@tonic-gate p1 = pretty; 430*0Sstevel@tonic-gate while (*p1 && *p1 != 't') 431*0Sstevel@tonic-gate ++p1; 432*0Sstevel@tonic-gate 433*0Sstevel@tonic-gate if (!*p1) 434*0Sstevel@tonic-gate return; 435*0Sstevel@tonic-gate ++p1; 436*0Sstevel@tonic-gate 437*0Sstevel@tonic-gate p2 = p1; 438*0Sstevel@tonic-gate while (*p2 && *p2 != 'd') 439*0Sstevel@tonic-gate ++p2; 440*0Sstevel@tonic-gate 441*0Sstevel@tonic-gate if (!*p2 || p2 == p1) 442*0Sstevel@tonic-gate return; 443*0Sstevel@tonic-gate 444*0Sstevel@tonic-gate target = safe_alloc(1 + p2 - p1); 445*0Sstevel@tonic-gate (void) strlcpy(target, p1, 1 + p2 - p1); 446*0Sstevel@tonic-gate 447*0Sstevel@tonic-gate ret = sscanf(p2, "d%d%*[sp]%d", &disk, &slice); 448*0Sstevel@tonic-gate 449*0Sstevel@tonic-gate if (ret == 2 && iodev->is_type == IODEV_PARTITION) { 450*0Sstevel@tonic-gate iodev->is_id.id = slice; 451*0Sstevel@tonic-gate iodev->is_parent_id.id = disk; 452*0Sstevel@tonic-gate (void) strlcpy(iodev->is_parent_id.tid, target, KSTAT_STRLEN); 453*0Sstevel@tonic-gate } else if (ret == 1) { 454*0Sstevel@tonic-gate if (iodev->is_type == IODEV_DISK) { 455*0Sstevel@tonic-gate iodev->is_id.id = disk; 456*0Sstevel@tonic-gate (void) strlcpy(iodev->is_id.tid, target, KSTAT_STRLEN); 457*0Sstevel@tonic-gate iodev->is_parent_id.id = ctr; 458*0Sstevel@tonic-gate } else if (iodev->is_type == IODEV_IOPATH) { 459*0Sstevel@tonic-gate iodev->is_parent_id.id = disk; 460*0Sstevel@tonic-gate (void) strlcpy(iodev->is_parent_id.tid, 461*0Sstevel@tonic-gate target, KSTAT_STRLEN); 462*0Sstevel@tonic-gate } 463*0Sstevel@tonic-gate } 464*0Sstevel@tonic-gate 465*0Sstevel@tonic-gate free(target); 466*0Sstevel@tonic-gate } 467*0Sstevel@tonic-gate 468*0Sstevel@tonic-gate static char * 469*0Sstevel@tonic-gate get_slice(int partition, disk_list_t *dl) 470*0Sstevel@tonic-gate { 471*0Sstevel@tonic-gate char *tmpbuf; 472*0Sstevel@tonic-gate size_t tmplen; 473*0Sstevel@tonic-gate 474*0Sstevel@tonic-gate if (!(dl->flags & SLICES_OK)) 475*0Sstevel@tonic-gate return (NULL); 476*0Sstevel@tonic-gate if (partition < 0 || partition >= NDKMAP) 477*0Sstevel@tonic-gate return (NULL); 478*0Sstevel@tonic-gate 479*0Sstevel@tonic-gate /* space for 's', and integer < NDKMAP (16) */ 480*0Sstevel@tonic-gate tmplen = strlen(dl->dsk) + strlen("sXX") + 1; 481*0Sstevel@tonic-gate tmpbuf = safe_alloc(tmplen); 482*0Sstevel@tonic-gate 483*0Sstevel@tonic-gate /* 484*0Sstevel@tonic-gate * This is a regular slice. Create the name and 485*0Sstevel@tonic-gate * copy it for use by the calling routine. 486*0Sstevel@tonic-gate */ 487*0Sstevel@tonic-gate (void) snprintf(tmpbuf, tmplen, "%ss%d", dl->dsk, partition); 488*0Sstevel@tonic-gate return (tmpbuf); 489*0Sstevel@tonic-gate } 490*0Sstevel@tonic-gate 491*0Sstevel@tonic-gate static char * 492*0Sstevel@tonic-gate get_intel_partition(int partition, disk_list_t *dl) 493*0Sstevel@tonic-gate { 494*0Sstevel@tonic-gate char *tmpbuf; 495*0Sstevel@tonic-gate size_t tmplen; 496*0Sstevel@tonic-gate 497*0Sstevel@tonic-gate if (partition <= 0 || !(dl->flags & PARTITIONS_OK)) 498*0Sstevel@tonic-gate return (NULL); 499*0Sstevel@tonic-gate 500*0Sstevel@tonic-gate /* 501*0Sstevel@tonic-gate * See if it falls in the range of allowable partitions. The 502*0Sstevel@tonic-gate * fdisk partitions show up after the traditional slices so we 503*0Sstevel@tonic-gate * determine which partition we're in and return that. 504*0Sstevel@tonic-gate * The NUMPART + 1 is not a mistake. There are currently 505*0Sstevel@tonic-gate * FD_NUMPART + 1 partitions that show up in the device directory. 506*0Sstevel@tonic-gate */ 507*0Sstevel@tonic-gate partition -= NDKMAP; 508*0Sstevel@tonic-gate if (partition < 0 || partition >= (FD_NUMPART + 1)) 509*0Sstevel@tonic-gate return (NULL); 510*0Sstevel@tonic-gate 511*0Sstevel@tonic-gate /* space for 'p', and integer < NDKMAP (16) */ 512*0Sstevel@tonic-gate tmplen = strlen(dl->dsk) + strlen("pXX") + 1; 513*0Sstevel@tonic-gate tmpbuf = safe_alloc(tmplen); 514*0Sstevel@tonic-gate 515*0Sstevel@tonic-gate (void) snprintf(tmpbuf, tmplen, "%sp%d", dl->dsk, partition); 516*0Sstevel@tonic-gate return (tmpbuf); 517*0Sstevel@tonic-gate } 518*0Sstevel@tonic-gate 519*0Sstevel@tonic-gate static void 520*0Sstevel@tonic-gate get_pretty_name(enum snapshot_types types, struct iodev_snapshot *iodev, 521*0Sstevel@tonic-gate kstat_ctl_t *kc) 522*0Sstevel@tonic-gate { 523*0Sstevel@tonic-gate disk_list_t *dl; 524*0Sstevel@tonic-gate char *pretty = NULL; 525*0Sstevel@tonic-gate char *tmp; 526*0Sstevel@tonic-gate int partition; 527*0Sstevel@tonic-gate 528*0Sstevel@tonic-gate if (iodev->is_type == IODEV_NFS) { 529*0Sstevel@tonic-gate if (!(types & SNAP_IODEV_PRETTY)) 530*0Sstevel@tonic-gate return; 531*0Sstevel@tonic-gate 532*0Sstevel@tonic-gate iodev->is_pretty = lookup_nfs_name(iodev->is_name, kc); 533*0Sstevel@tonic-gate return; 534*0Sstevel@tonic-gate } 535*0Sstevel@tonic-gate 536*0Sstevel@tonic-gate if (iodev->is_type == IODEV_IOPATH) { 537*0Sstevel@tonic-gate char buf[KSTAT_STRLEN]; 538*0Sstevel@tonic-gate size_t len; 539*0Sstevel@tonic-gate 540*0Sstevel@tonic-gate tmp = iodev->is_name; 541*0Sstevel@tonic-gate while (*tmp && *tmp != '.') 542*0Sstevel@tonic-gate tmp++; 543*0Sstevel@tonic-gate if (!*tmp) 544*0Sstevel@tonic-gate return; 545*0Sstevel@tonic-gate (void) strlcpy(buf, iodev->is_name, 1 + tmp - iodev->is_name); 546*0Sstevel@tonic-gate dl = lookup_ks_name(buf); 547*0Sstevel@tonic-gate if (dl == NULL || dl->dsk == NULL) 548*0Sstevel@tonic-gate return; 549*0Sstevel@tonic-gate len = strlen(dl->dsk) + strlen(tmp) + 1; 550*0Sstevel@tonic-gate pretty = safe_alloc(len); 551*0Sstevel@tonic-gate (void) strlcpy(pretty, dl->dsk, len); 552*0Sstevel@tonic-gate (void) strlcat(pretty, tmp, len); 553*0Sstevel@tonic-gate goto out; 554*0Sstevel@tonic-gate } 555*0Sstevel@tonic-gate 556*0Sstevel@tonic-gate dl = lookup_ks_name(iodev->is_name); 557*0Sstevel@tonic-gate if (dl == NULL) 558*0Sstevel@tonic-gate return; 559*0Sstevel@tonic-gate 560*0Sstevel@tonic-gate if (dl->dsk) 561*0Sstevel@tonic-gate pretty = safe_strdup(dl->dsk); 562*0Sstevel@tonic-gate 563*0Sstevel@tonic-gate if (types & SNAP_IODEV_PRETTY) { 564*0Sstevel@tonic-gate if (dl->dname) 565*0Sstevel@tonic-gate iodev->is_dname = safe_strdup(dl->dname); 566*0Sstevel@tonic-gate } 567*0Sstevel@tonic-gate 568*0Sstevel@tonic-gate if (dl->devidstr) 569*0Sstevel@tonic-gate iodev->is_devid = safe_strdup(dl->devidstr); 570*0Sstevel@tonic-gate 571*0Sstevel@tonic-gate /* look for a possible partition number */ 572*0Sstevel@tonic-gate tmp = iodev->is_name; 573*0Sstevel@tonic-gate while (*tmp && *tmp != ',') 574*0Sstevel@tonic-gate tmp++; 575*0Sstevel@tonic-gate if (*tmp != ',') 576*0Sstevel@tonic-gate goto out; 577*0Sstevel@tonic-gate 578*0Sstevel@tonic-gate tmp++; 579*0Sstevel@tonic-gate partition = (int)(*tmp - 'a'); 580*0Sstevel@tonic-gate 581*0Sstevel@tonic-gate if (iodev->is_type == IODEV_PARTITION) { 582*0Sstevel@tonic-gate char *part; 583*0Sstevel@tonic-gate if ((part = get_slice(partition, dl)) == NULL) 584*0Sstevel@tonic-gate part = get_intel_partition(partition, dl); 585*0Sstevel@tonic-gate if (part != NULL) { 586*0Sstevel@tonic-gate free(pretty); 587*0Sstevel@tonic-gate pretty = part; 588*0Sstevel@tonic-gate } 589*0Sstevel@tonic-gate } 590*0Sstevel@tonic-gate 591*0Sstevel@tonic-gate out: 592*0Sstevel@tonic-gate get_ids(iodev, pretty); 593*0Sstevel@tonic-gate 594*0Sstevel@tonic-gate /* only fill in the pretty name if specifically asked for */ 595*0Sstevel@tonic-gate if (types & SNAP_IODEV_PRETTY) { 596*0Sstevel@tonic-gate iodev->is_pretty = pretty; 597*0Sstevel@tonic-gate } else { 598*0Sstevel@tonic-gate free(pretty); 599*0Sstevel@tonic-gate } 600*0Sstevel@tonic-gate } 601*0Sstevel@tonic-gate 602*0Sstevel@tonic-gate static enum iodev_type 603*0Sstevel@tonic-gate get_iodev_type(kstat_t *ksp) 604*0Sstevel@tonic-gate { 605*0Sstevel@tonic-gate if (strcmp(ksp->ks_class, "disk") == 0) 606*0Sstevel@tonic-gate return (IODEV_DISK); 607*0Sstevel@tonic-gate if (strcmp(ksp->ks_class, "partition") == 0) 608*0Sstevel@tonic-gate return (IODEV_PARTITION); 609*0Sstevel@tonic-gate if (strcmp(ksp->ks_class, "nfs") == 0) 610*0Sstevel@tonic-gate return (IODEV_NFS); 611*0Sstevel@tonic-gate if (strcmp(ksp->ks_class, "iopath") == 0) 612*0Sstevel@tonic-gate return (IODEV_IOPATH); 613*0Sstevel@tonic-gate if (strcmp(ksp->ks_class, "tape") == 0) 614*0Sstevel@tonic-gate return (IODEV_TAPE); 615*0Sstevel@tonic-gate return (IODEV_UNKNOWN); 616*0Sstevel@tonic-gate } 617*0Sstevel@tonic-gate 618*0Sstevel@tonic-gate int 619*0Sstevel@tonic-gate iodev_cmp(struct iodev_snapshot *io1, struct iodev_snapshot *io2) 620*0Sstevel@tonic-gate { 621*0Sstevel@tonic-gate /* neutral sort order between disk and part */ 622*0Sstevel@tonic-gate if (!disk_or_partition(io1->is_type) || 623*0Sstevel@tonic-gate !disk_or_partition(io2->is_type)) { 624*0Sstevel@tonic-gate if (io1->is_type < io2->is_type) 625*0Sstevel@tonic-gate return (-1); 626*0Sstevel@tonic-gate if (io1->is_type > io2->is_type) 627*0Sstevel@tonic-gate return (1); 628*0Sstevel@tonic-gate } 629*0Sstevel@tonic-gate 630*0Sstevel@tonic-gate /* controller doesn't have ksp */ 631*0Sstevel@tonic-gate if (io1->is_ksp && io2->is_ksp) { 632*0Sstevel@tonic-gate if (strcmp(io1->is_module, io2->is_module) != 0) 633*0Sstevel@tonic-gate return (strcmp(io1->is_module, io2->is_module)); 634*0Sstevel@tonic-gate if (io1->is_instance < io2->is_instance) 635*0Sstevel@tonic-gate return (-1); 636*0Sstevel@tonic-gate if (io1->is_instance > io2->is_instance) 637*0Sstevel@tonic-gate return (1); 638*0Sstevel@tonic-gate } else { 639*0Sstevel@tonic-gate if (io1->is_id.id < io2->is_id.id) 640*0Sstevel@tonic-gate return (-1); 641*0Sstevel@tonic-gate if (io1->is_id.id > io2->is_id.id) 642*0Sstevel@tonic-gate return (1); 643*0Sstevel@tonic-gate } 644*0Sstevel@tonic-gate 645*0Sstevel@tonic-gate return (strcmp(io1->is_name, io2->is_name)); 646*0Sstevel@tonic-gate } 647*0Sstevel@tonic-gate 648*0Sstevel@tonic-gate int 649*0Sstevel@tonic-gate acquire_iodevs(struct snapshot *ss, kstat_ctl_t *kc, struct iodev_filter *df) 650*0Sstevel@tonic-gate { 651*0Sstevel@tonic-gate kstat_t *ksp; 652*0Sstevel@tonic-gate int err = 0; 653*0Sstevel@tonic-gate struct iodev_snapshot *pos; 654*0Sstevel@tonic-gate struct iodev_snapshot *list = NULL; 655*0Sstevel@tonic-gate 656*0Sstevel@tonic-gate ss->s_nr_iodevs = 0; 657*0Sstevel@tonic-gate 658*0Sstevel@tonic-gate for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { 659*0Sstevel@tonic-gate enum iodev_type type; 660*0Sstevel@tonic-gate 661*0Sstevel@tonic-gate if (ksp->ks_type != KSTAT_TYPE_IO) 662*0Sstevel@tonic-gate continue; 663*0Sstevel@tonic-gate 664*0Sstevel@tonic-gate /* e.g. "usb_byte_count" is not handled */ 665*0Sstevel@tonic-gate if ((type = get_iodev_type(ksp)) == IODEV_UNKNOWN) 666*0Sstevel@tonic-gate continue; 667*0Sstevel@tonic-gate 668*0Sstevel@tonic-gate if (df && !(type & df->if_allowed_types)) 669*0Sstevel@tonic-gate continue; 670*0Sstevel@tonic-gate 671*0Sstevel@tonic-gate if ((pos = malloc(sizeof (struct iodev_snapshot))) == NULL) { 672*0Sstevel@tonic-gate err = errno; 673*0Sstevel@tonic-gate goto out; 674*0Sstevel@tonic-gate } 675*0Sstevel@tonic-gate 676*0Sstevel@tonic-gate (void) memset(pos, 0, sizeof (struct iodev_snapshot)); 677*0Sstevel@tonic-gate 678*0Sstevel@tonic-gate pos->is_type = type; 679*0Sstevel@tonic-gate pos->is_crtime = ksp->ks_crtime; 680*0Sstevel@tonic-gate pos->is_snaptime = ksp->ks_snaptime; 681*0Sstevel@tonic-gate pos->is_id.id = IODEV_NO_ID; 682*0Sstevel@tonic-gate pos->is_parent_id.id = IODEV_NO_ID; 683*0Sstevel@tonic-gate pos->is_ksp = ksp; 684*0Sstevel@tonic-gate pos->is_instance = ksp->ks_instance; 685*0Sstevel@tonic-gate 686*0Sstevel@tonic-gate (void) strlcpy(pos->is_module, ksp->ks_module, KSTAT_STRLEN); 687*0Sstevel@tonic-gate (void) strlcpy(pos->is_name, ksp->ks_name, KSTAT_STRLEN); 688*0Sstevel@tonic-gate get_pretty_name(ss->s_types, pos, kc); 689*0Sstevel@tonic-gate 690*0Sstevel@tonic-gate /* 691*0Sstevel@tonic-gate * We must insert in sort order so e.g. vmstat -l 692*0Sstevel@tonic-gate * chooses in order. 693*0Sstevel@tonic-gate */ 694*0Sstevel@tonic-gate insert_into(&list, pos); 695*0Sstevel@tonic-gate } 696*0Sstevel@tonic-gate 697*0Sstevel@tonic-gate choose_iodevs(ss, list, df); 698*0Sstevel@tonic-gate 699*0Sstevel@tonic-gate /* before acquire_stats for collate_controller()'s benefit */ 700*0Sstevel@tonic-gate if (ss->s_types & SNAP_IODEV_ERRORS) { 701*0Sstevel@tonic-gate if ((err = acquire_iodev_errors(ss, kc)) != 0) 702*0Sstevel@tonic-gate goto out; 703*0Sstevel@tonic-gate } 704*0Sstevel@tonic-gate 705*0Sstevel@tonic-gate if ((err = acquire_iodev_stats(ss->s_iodevs, kc)) != 0) 706*0Sstevel@tonic-gate goto out; 707*0Sstevel@tonic-gate 708*0Sstevel@tonic-gate err = 0; 709*0Sstevel@tonic-gate out: 710*0Sstevel@tonic-gate return (err); 711*0Sstevel@tonic-gate } 712*0Sstevel@tonic-gate 713*0Sstevel@tonic-gate void 714*0Sstevel@tonic-gate free_iodev(struct iodev_snapshot *iodev) 715*0Sstevel@tonic-gate { 716*0Sstevel@tonic-gate while (iodev->is_children) { 717*0Sstevel@tonic-gate struct iodev_snapshot *tmp = iodev->is_children; 718*0Sstevel@tonic-gate iodev->is_children = iodev->is_children->is_next; 719*0Sstevel@tonic-gate free_iodev(tmp); 720*0Sstevel@tonic-gate } 721*0Sstevel@tonic-gate 722*0Sstevel@tonic-gate free(iodev->is_errors.ks_data); 723*0Sstevel@tonic-gate free(iodev->is_pretty); 724*0Sstevel@tonic-gate free(iodev->is_dname); 725*0Sstevel@tonic-gate free(iodev->is_devid); 726*0Sstevel@tonic-gate free(iodev); 727*0Sstevel@tonic-gate } 728