1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate #include "statcommon.h" 30*7c478bd9Sstevel@tonic-gate #include "dsr.h" 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate #include <sys/dklabel.h> 33*7c478bd9Sstevel@tonic-gate #include <sys/dktp/fdisk.h> 34*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 35*7c478bd9Sstevel@tonic-gate #include <stdarg.h> 36*7c478bd9Sstevel@tonic-gate #include <unistd.h> 37*7c478bd9Sstevel@tonic-gate #include <strings.h> 38*7c478bd9Sstevel@tonic-gate #include <errno.h> 39*7c478bd9Sstevel@tonic-gate #include <limits.h> 40*7c478bd9Sstevel@tonic-gate 41*7c478bd9Sstevel@tonic-gate static void insert_iodev(struct snapshot *ss, struct iodev_snapshot *iodev); 42*7c478bd9Sstevel@tonic-gate 43*7c478bd9Sstevel@tonic-gate static struct iodev_snapshot * 44*7c478bd9Sstevel@tonic-gate make_controller(int cid) 45*7c478bd9Sstevel@tonic-gate { 46*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *new; 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate new = safe_alloc(sizeof (struct iodev_snapshot)); 49*7c478bd9Sstevel@tonic-gate (void) memset(new, 0, sizeof (struct iodev_snapshot)); 50*7c478bd9Sstevel@tonic-gate new->is_type = IODEV_CONTROLLER; 51*7c478bd9Sstevel@tonic-gate new->is_id.id = cid; 52*7c478bd9Sstevel@tonic-gate new->is_parent_id.id = IODEV_NO_ID; 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate (void) snprintf(new->is_name, sizeof (new->is_name), "c%d", cid); 55*7c478bd9Sstevel@tonic-gate 56*7c478bd9Sstevel@tonic-gate return (new); 57*7c478bd9Sstevel@tonic-gate } 58*7c478bd9Sstevel@tonic-gate 59*7c478bd9Sstevel@tonic-gate static struct iodev_snapshot * 60*7c478bd9Sstevel@tonic-gate find_iodev_by_name(struct iodev_snapshot *list, const char *name) 61*7c478bd9Sstevel@tonic-gate { 62*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos; 63*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos2; 64*7c478bd9Sstevel@tonic-gate 65*7c478bd9Sstevel@tonic-gate for (pos = list; pos; pos = pos->is_next) { 66*7c478bd9Sstevel@tonic-gate if (strcmp(pos->is_name, name) == 0) 67*7c478bd9Sstevel@tonic-gate return (pos); 68*7c478bd9Sstevel@tonic-gate 69*7c478bd9Sstevel@tonic-gate pos2 = find_iodev_by_name(pos->is_children, name); 70*7c478bd9Sstevel@tonic-gate if (pos2 != NULL) 71*7c478bd9Sstevel@tonic-gate return (pos2); 72*7c478bd9Sstevel@tonic-gate } 73*7c478bd9Sstevel@tonic-gate 74*7c478bd9Sstevel@tonic-gate return (NULL); 75*7c478bd9Sstevel@tonic-gate } 76*7c478bd9Sstevel@tonic-gate 77*7c478bd9Sstevel@tonic-gate static enum iodev_type 78*7c478bd9Sstevel@tonic-gate parent_iodev_type(enum iodev_type type) 79*7c478bd9Sstevel@tonic-gate { 80*7c478bd9Sstevel@tonic-gate switch (type) { 81*7c478bd9Sstevel@tonic-gate case IODEV_CONTROLLER: return (0); 82*7c478bd9Sstevel@tonic-gate case IODEV_NFS: return (0); 83*7c478bd9Sstevel@tonic-gate case IODEV_TAPE: return (0); 84*7c478bd9Sstevel@tonic-gate case IODEV_IOPATH: return (IODEV_DISK); 85*7c478bd9Sstevel@tonic-gate case IODEV_DISK: return (IODEV_CONTROLLER); 86*7c478bd9Sstevel@tonic-gate case IODEV_PARTITION: return (IODEV_DISK); 87*7c478bd9Sstevel@tonic-gate } 88*7c478bd9Sstevel@tonic-gate return (IODEV_UNKNOWN); 89*7c478bd9Sstevel@tonic-gate } 90*7c478bd9Sstevel@tonic-gate 91*7c478bd9Sstevel@tonic-gate static int 92*7c478bd9Sstevel@tonic-gate id_match(struct iodev_id *id1, struct iodev_id *id2) 93*7c478bd9Sstevel@tonic-gate { 94*7c478bd9Sstevel@tonic-gate return (id1->id == id2->id && 95*7c478bd9Sstevel@tonic-gate strcmp(id1->tid, id2->tid) == 0); 96*7c478bd9Sstevel@tonic-gate } 97*7c478bd9Sstevel@tonic-gate 98*7c478bd9Sstevel@tonic-gate static struct iodev_snapshot * 99*7c478bd9Sstevel@tonic-gate find_parent(struct snapshot *ss, struct iodev_snapshot *iodev) 100*7c478bd9Sstevel@tonic-gate { 101*7c478bd9Sstevel@tonic-gate enum iodev_type parent_type = parent_iodev_type(iodev->is_type); 102*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos; 103*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos2; 104*7c478bd9Sstevel@tonic-gate 105*7c478bd9Sstevel@tonic-gate if (parent_type == 0 || parent_type == IODEV_UNKNOWN) 106*7c478bd9Sstevel@tonic-gate return (NULL); 107*7c478bd9Sstevel@tonic-gate 108*7c478bd9Sstevel@tonic-gate if (iodev->is_parent_id.id == IODEV_NO_ID && 109*7c478bd9Sstevel@tonic-gate iodev->is_parent_id.tid[0] == '\0') 110*7c478bd9Sstevel@tonic-gate return (NULL); 111*7c478bd9Sstevel@tonic-gate 112*7c478bd9Sstevel@tonic-gate if (parent_type == IODEV_CONTROLLER) { 113*7c478bd9Sstevel@tonic-gate for (pos = ss->s_iodevs; pos; pos = pos->is_next) { 114*7c478bd9Sstevel@tonic-gate if (pos->is_type != IODEV_CONTROLLER) 115*7c478bd9Sstevel@tonic-gate continue; 116*7c478bd9Sstevel@tonic-gate if (pos->is_id.id != iodev->is_parent_id.id) 117*7c478bd9Sstevel@tonic-gate continue; 118*7c478bd9Sstevel@tonic-gate return (pos); 119*7c478bd9Sstevel@tonic-gate } 120*7c478bd9Sstevel@tonic-gate 121*7c478bd9Sstevel@tonic-gate if (!(ss->s_types & SNAP_CONTROLLERS)) 122*7c478bd9Sstevel@tonic-gate return (NULL); 123*7c478bd9Sstevel@tonic-gate 124*7c478bd9Sstevel@tonic-gate pos = make_controller(iodev->is_parent_id.id); 125*7c478bd9Sstevel@tonic-gate insert_iodev(ss, pos); 126*7c478bd9Sstevel@tonic-gate return (pos); 127*7c478bd9Sstevel@tonic-gate } 128*7c478bd9Sstevel@tonic-gate 129*7c478bd9Sstevel@tonic-gate /* IODEV_DISK parent */ 130*7c478bd9Sstevel@tonic-gate for (pos = ss->s_iodevs; pos; pos = pos->is_next) { 131*7c478bd9Sstevel@tonic-gate if (id_match(&iodev->is_parent_id, &pos->is_id) && 132*7c478bd9Sstevel@tonic-gate pos->is_type == IODEV_DISK) 133*7c478bd9Sstevel@tonic-gate return (pos); 134*7c478bd9Sstevel@tonic-gate if (pos->is_type != IODEV_CONTROLLER) 135*7c478bd9Sstevel@tonic-gate continue; 136*7c478bd9Sstevel@tonic-gate for (pos2 = pos->is_children; pos2; pos2 = pos2->is_next) { 137*7c478bd9Sstevel@tonic-gate if (pos2->is_type != IODEV_DISK) 138*7c478bd9Sstevel@tonic-gate continue; 139*7c478bd9Sstevel@tonic-gate if (id_match(&iodev->is_parent_id, &pos2->is_id)) 140*7c478bd9Sstevel@tonic-gate return (pos2); 141*7c478bd9Sstevel@tonic-gate } 142*7c478bd9Sstevel@tonic-gate } 143*7c478bd9Sstevel@tonic-gate 144*7c478bd9Sstevel@tonic-gate return (NULL); 145*7c478bd9Sstevel@tonic-gate } 146*7c478bd9Sstevel@tonic-gate 147*7c478bd9Sstevel@tonic-gate static void 148*7c478bd9Sstevel@tonic-gate list_del(struct iodev_snapshot **list, struct iodev_snapshot *pos) 149*7c478bd9Sstevel@tonic-gate { 150*7c478bd9Sstevel@tonic-gate if (*list == pos) 151*7c478bd9Sstevel@tonic-gate *list = pos->is_next; 152*7c478bd9Sstevel@tonic-gate if (pos->is_next) 153*7c478bd9Sstevel@tonic-gate pos->is_next->is_prev = pos->is_prev; 154*7c478bd9Sstevel@tonic-gate if (pos->is_prev) 155*7c478bd9Sstevel@tonic-gate pos->is_prev->is_next = pos->is_next; 156*7c478bd9Sstevel@tonic-gate pos->is_prev = pos->is_next = NULL; 157*7c478bd9Sstevel@tonic-gate } 158*7c478bd9Sstevel@tonic-gate 159*7c478bd9Sstevel@tonic-gate static void 160*7c478bd9Sstevel@tonic-gate insert_before(struct iodev_snapshot **list, struct iodev_snapshot *pos, 161*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *new) 162*7c478bd9Sstevel@tonic-gate { 163*7c478bd9Sstevel@tonic-gate if (pos == NULL) { 164*7c478bd9Sstevel@tonic-gate new->is_prev = new->is_next = NULL; 165*7c478bd9Sstevel@tonic-gate *list = new; 166*7c478bd9Sstevel@tonic-gate return; 167*7c478bd9Sstevel@tonic-gate } 168*7c478bd9Sstevel@tonic-gate 169*7c478bd9Sstevel@tonic-gate new->is_next = pos; 170*7c478bd9Sstevel@tonic-gate new->is_prev = pos->is_prev; 171*7c478bd9Sstevel@tonic-gate if (pos->is_prev) 172*7c478bd9Sstevel@tonic-gate pos->is_prev->is_next = new; 173*7c478bd9Sstevel@tonic-gate else 174*7c478bd9Sstevel@tonic-gate *list = new; 175*7c478bd9Sstevel@tonic-gate pos->is_prev = new; 176*7c478bd9Sstevel@tonic-gate } 177*7c478bd9Sstevel@tonic-gate 178*7c478bd9Sstevel@tonic-gate static void 179*7c478bd9Sstevel@tonic-gate insert_after(struct iodev_snapshot **list, struct iodev_snapshot *pos, 180*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *new) 181*7c478bd9Sstevel@tonic-gate { 182*7c478bd9Sstevel@tonic-gate if (pos == NULL) { 183*7c478bd9Sstevel@tonic-gate new->is_prev = new->is_next = NULL; 184*7c478bd9Sstevel@tonic-gate *list = new; 185*7c478bd9Sstevel@tonic-gate return; 186*7c478bd9Sstevel@tonic-gate } 187*7c478bd9Sstevel@tonic-gate 188*7c478bd9Sstevel@tonic-gate new->is_next = pos->is_next; 189*7c478bd9Sstevel@tonic-gate new->is_prev = pos; 190*7c478bd9Sstevel@tonic-gate if (pos->is_next) 191*7c478bd9Sstevel@tonic-gate pos->is_next->is_prev = new; 192*7c478bd9Sstevel@tonic-gate pos->is_next = new; 193*7c478bd9Sstevel@tonic-gate } 194*7c478bd9Sstevel@tonic-gate 195*7c478bd9Sstevel@tonic-gate static void 196*7c478bd9Sstevel@tonic-gate insert_into(struct iodev_snapshot **list, struct iodev_snapshot *iodev) 197*7c478bd9Sstevel@tonic-gate { 198*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *tmp = *list; 199*7c478bd9Sstevel@tonic-gate if (*list == NULL) { 200*7c478bd9Sstevel@tonic-gate *list = iodev; 201*7c478bd9Sstevel@tonic-gate return; 202*7c478bd9Sstevel@tonic-gate } 203*7c478bd9Sstevel@tonic-gate 204*7c478bd9Sstevel@tonic-gate for (;;) { 205*7c478bd9Sstevel@tonic-gate if (iodev_cmp(tmp, iodev) > 0) { 206*7c478bd9Sstevel@tonic-gate insert_before(list, tmp, iodev); 207*7c478bd9Sstevel@tonic-gate return; 208*7c478bd9Sstevel@tonic-gate } 209*7c478bd9Sstevel@tonic-gate 210*7c478bd9Sstevel@tonic-gate if (tmp->is_next == NULL) 211*7c478bd9Sstevel@tonic-gate break; 212*7c478bd9Sstevel@tonic-gate 213*7c478bd9Sstevel@tonic-gate tmp = tmp->is_next; 214*7c478bd9Sstevel@tonic-gate } 215*7c478bd9Sstevel@tonic-gate 216*7c478bd9Sstevel@tonic-gate insert_after(list, tmp, iodev); 217*7c478bd9Sstevel@tonic-gate } 218*7c478bd9Sstevel@tonic-gate 219*7c478bd9Sstevel@tonic-gate static int 220*7c478bd9Sstevel@tonic-gate disk_or_partition(enum iodev_type type) 221*7c478bd9Sstevel@tonic-gate { 222*7c478bd9Sstevel@tonic-gate return (type == IODEV_DISK || type == IODEV_PARTITION); 223*7c478bd9Sstevel@tonic-gate } 224*7c478bd9Sstevel@tonic-gate 225*7c478bd9Sstevel@tonic-gate static void 226*7c478bd9Sstevel@tonic-gate insert_iodev(struct snapshot *ss, struct iodev_snapshot *iodev) 227*7c478bd9Sstevel@tonic-gate { 228*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *parent = find_parent(ss, iodev); 229*7c478bd9Sstevel@tonic-gate struct iodev_snapshot **list; 230*7c478bd9Sstevel@tonic-gate 231*7c478bd9Sstevel@tonic-gate if (parent != NULL) { 232*7c478bd9Sstevel@tonic-gate list = &parent->is_children; 233*7c478bd9Sstevel@tonic-gate parent->is_nr_children++; 234*7c478bd9Sstevel@tonic-gate } else { 235*7c478bd9Sstevel@tonic-gate list = &ss->s_iodevs; 236*7c478bd9Sstevel@tonic-gate ss->s_nr_iodevs++; 237*7c478bd9Sstevel@tonic-gate } 238*7c478bd9Sstevel@tonic-gate 239*7c478bd9Sstevel@tonic-gate insert_into(list, iodev); 240*7c478bd9Sstevel@tonic-gate } 241*7c478bd9Sstevel@tonic-gate 242*7c478bd9Sstevel@tonic-gate static int 243*7c478bd9Sstevel@tonic-gate iodev_match(struct iodev_snapshot *dev, struct iodev_filter *df) 244*7c478bd9Sstevel@tonic-gate { 245*7c478bd9Sstevel@tonic-gate size_t i; 246*7c478bd9Sstevel@tonic-gate int is_floppy = (strncmp(dev->is_name, "fd", 2) == 0); 247*7c478bd9Sstevel@tonic-gate 248*7c478bd9Sstevel@tonic-gate /* no filter, pass */ 249*7c478bd9Sstevel@tonic-gate if (df == NULL) 250*7c478bd9Sstevel@tonic-gate return (1); 251*7c478bd9Sstevel@tonic-gate 252*7c478bd9Sstevel@tonic-gate /* no filtered names, pass if not floppy and skipped */ 253*7c478bd9Sstevel@tonic-gate if (df->if_nr_names == NULL) 254*7c478bd9Sstevel@tonic-gate return (!(df->if_skip_floppy && is_floppy)); 255*7c478bd9Sstevel@tonic-gate 256*7c478bd9Sstevel@tonic-gate for (i = 0; i < df->if_nr_names; i++) { 257*7c478bd9Sstevel@tonic-gate if (strcmp(dev->is_name, df->if_names[i]) == 0) 258*7c478bd9Sstevel@tonic-gate return (1); 259*7c478bd9Sstevel@tonic-gate if (dev->is_pretty != NULL && 260*7c478bd9Sstevel@tonic-gate strcmp(dev->is_pretty, df->if_names[i]) == 0) 261*7c478bd9Sstevel@tonic-gate return (1); 262*7c478bd9Sstevel@tonic-gate } 263*7c478bd9Sstevel@tonic-gate 264*7c478bd9Sstevel@tonic-gate /* not found in specified names, fail match */ 265*7c478bd9Sstevel@tonic-gate return (0); 266*7c478bd9Sstevel@tonic-gate } 267*7c478bd9Sstevel@tonic-gate 268*7c478bd9Sstevel@tonic-gate /* select which I/O devices to collect stats for */ 269*7c478bd9Sstevel@tonic-gate static void 270*7c478bd9Sstevel@tonic-gate choose_iodevs(struct snapshot *ss, struct iodev_snapshot *iodevs, 271*7c478bd9Sstevel@tonic-gate struct iodev_filter *df) 272*7c478bd9Sstevel@tonic-gate { 273*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos = iodevs; 274*7c478bd9Sstevel@tonic-gate int nr_iodevs = df ? df->if_max_iodevs : UNLIMITED_IODEVS; 275*7c478bd9Sstevel@tonic-gate 276*7c478bd9Sstevel@tonic-gate if (nr_iodevs == UNLIMITED_IODEVS) 277*7c478bd9Sstevel@tonic-gate nr_iodevs = INT_MAX; 278*7c478bd9Sstevel@tonic-gate 279*7c478bd9Sstevel@tonic-gate while (pos && nr_iodevs) { 280*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *tmp = pos; 281*7c478bd9Sstevel@tonic-gate pos = pos->is_next; 282*7c478bd9Sstevel@tonic-gate 283*7c478bd9Sstevel@tonic-gate if (!iodev_match(tmp, df)) 284*7c478bd9Sstevel@tonic-gate continue; 285*7c478bd9Sstevel@tonic-gate 286*7c478bd9Sstevel@tonic-gate list_del(&iodevs, tmp); 287*7c478bd9Sstevel@tonic-gate insert_iodev(ss, tmp); 288*7c478bd9Sstevel@tonic-gate 289*7c478bd9Sstevel@tonic-gate --nr_iodevs; 290*7c478bd9Sstevel@tonic-gate } 291*7c478bd9Sstevel@tonic-gate 292*7c478bd9Sstevel@tonic-gate pos = iodevs; 293*7c478bd9Sstevel@tonic-gate 294*7c478bd9Sstevel@tonic-gate /* now insert any iodevs into the remaining slots */ 295*7c478bd9Sstevel@tonic-gate while (pos && nr_iodevs) { 296*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *tmp = pos; 297*7c478bd9Sstevel@tonic-gate pos = pos->is_next; 298*7c478bd9Sstevel@tonic-gate 299*7c478bd9Sstevel@tonic-gate if (df && df->if_skip_floppy && 300*7c478bd9Sstevel@tonic-gate strncmp(tmp->is_name, "fd", 2) == 0) 301*7c478bd9Sstevel@tonic-gate continue; 302*7c478bd9Sstevel@tonic-gate 303*7c478bd9Sstevel@tonic-gate list_del(&iodevs, tmp); 304*7c478bd9Sstevel@tonic-gate insert_iodev(ss, tmp); 305*7c478bd9Sstevel@tonic-gate 306*7c478bd9Sstevel@tonic-gate --nr_iodevs; 307*7c478bd9Sstevel@tonic-gate } 308*7c478bd9Sstevel@tonic-gate 309*7c478bd9Sstevel@tonic-gate /* clear the unwanted ones */ 310*7c478bd9Sstevel@tonic-gate pos = iodevs; 311*7c478bd9Sstevel@tonic-gate while (pos) { 312*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *tmp = pos; 313*7c478bd9Sstevel@tonic-gate pos = pos->is_next; 314*7c478bd9Sstevel@tonic-gate free_iodev(tmp); 315*7c478bd9Sstevel@tonic-gate } 316*7c478bd9Sstevel@tonic-gate } 317*7c478bd9Sstevel@tonic-gate 318*7c478bd9Sstevel@tonic-gate static int 319*7c478bd9Sstevel@tonic-gate collate_controller(struct iodev_snapshot *controller, 320*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *disk) 321*7c478bd9Sstevel@tonic-gate { 322*7c478bd9Sstevel@tonic-gate controller->is_stats.nread += disk->is_stats.nread; 323*7c478bd9Sstevel@tonic-gate controller->is_stats.nwritten += disk->is_stats.nwritten; 324*7c478bd9Sstevel@tonic-gate controller->is_stats.reads += disk->is_stats.reads; 325*7c478bd9Sstevel@tonic-gate controller->is_stats.writes += disk->is_stats.writes; 326*7c478bd9Sstevel@tonic-gate controller->is_stats.wtime += disk->is_stats.wtime; 327*7c478bd9Sstevel@tonic-gate controller->is_stats.wlentime += disk->is_stats.wlentime; 328*7c478bd9Sstevel@tonic-gate controller->is_stats.rtime += disk->is_stats.rtime; 329*7c478bd9Sstevel@tonic-gate controller->is_stats.rlentime += disk->is_stats.rlentime; 330*7c478bd9Sstevel@tonic-gate controller->is_crtime += disk->is_crtime; 331*7c478bd9Sstevel@tonic-gate controller->is_snaptime += disk->is_snaptime; 332*7c478bd9Sstevel@tonic-gate if (kstat_add(&disk->is_errors, &controller->is_errors)) 333*7c478bd9Sstevel@tonic-gate return (errno); 334*7c478bd9Sstevel@tonic-gate return (0); 335*7c478bd9Sstevel@tonic-gate } 336*7c478bd9Sstevel@tonic-gate 337*7c478bd9Sstevel@tonic-gate static int 338*7c478bd9Sstevel@tonic-gate acquire_iodev_stats(struct iodev_snapshot *list, kstat_ctl_t *kc) 339*7c478bd9Sstevel@tonic-gate { 340*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos; 341*7c478bd9Sstevel@tonic-gate int err = 0; 342*7c478bd9Sstevel@tonic-gate 343*7c478bd9Sstevel@tonic-gate for (pos = list; pos; pos = pos->is_next) { 344*7c478bd9Sstevel@tonic-gate /* controllers don't have stats (yet) */ 345*7c478bd9Sstevel@tonic-gate if (pos->is_ksp != NULL) { 346*7c478bd9Sstevel@tonic-gate if (kstat_read(kc, pos->is_ksp, &pos->is_stats) == -1) 347*7c478bd9Sstevel@tonic-gate return (errno); 348*7c478bd9Sstevel@tonic-gate /* make sure crtime/snaptime is updated */ 349*7c478bd9Sstevel@tonic-gate pos->is_crtime = pos->is_ksp->ks_crtime; 350*7c478bd9Sstevel@tonic-gate pos->is_snaptime = pos->is_ksp->ks_snaptime; 351*7c478bd9Sstevel@tonic-gate } 352*7c478bd9Sstevel@tonic-gate 353*7c478bd9Sstevel@tonic-gate if ((err = acquire_iodev_stats(pos->is_children, kc))) 354*7c478bd9Sstevel@tonic-gate return (err); 355*7c478bd9Sstevel@tonic-gate 356*7c478bd9Sstevel@tonic-gate if (pos->is_type == IODEV_CONTROLLER) { 357*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos2 = pos->is_children; 358*7c478bd9Sstevel@tonic-gate 359*7c478bd9Sstevel@tonic-gate for (; pos2; pos2 = pos2->is_next) { 360*7c478bd9Sstevel@tonic-gate if ((err = collate_controller(pos, pos2))) 361*7c478bd9Sstevel@tonic-gate return (err); 362*7c478bd9Sstevel@tonic-gate } 363*7c478bd9Sstevel@tonic-gate } 364*7c478bd9Sstevel@tonic-gate } 365*7c478bd9Sstevel@tonic-gate 366*7c478bd9Sstevel@tonic-gate return (0); 367*7c478bd9Sstevel@tonic-gate } 368*7c478bd9Sstevel@tonic-gate 369*7c478bd9Sstevel@tonic-gate static int 370*7c478bd9Sstevel@tonic-gate acquire_iodev_errors(struct snapshot *ss, kstat_ctl_t *kc) 371*7c478bd9Sstevel@tonic-gate { 372*7c478bd9Sstevel@tonic-gate kstat_t *ksp; 373*7c478bd9Sstevel@tonic-gate 374*7c478bd9Sstevel@tonic-gate if (!(ss->s_types && SNAP_IODEV_ERRORS)) 375*7c478bd9Sstevel@tonic-gate return (0); 376*7c478bd9Sstevel@tonic-gate 377*7c478bd9Sstevel@tonic-gate for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { 378*7c478bd9Sstevel@tonic-gate char kstat_name[KSTAT_STRLEN]; 379*7c478bd9Sstevel@tonic-gate char *dname = kstat_name; 380*7c478bd9Sstevel@tonic-gate char *ename = ksp->ks_name; 381*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *iodev; 382*7c478bd9Sstevel@tonic-gate 383*7c478bd9Sstevel@tonic-gate if (ksp->ks_type != KSTAT_TYPE_NAMED) 384*7c478bd9Sstevel@tonic-gate continue; 385*7c478bd9Sstevel@tonic-gate if (strncmp(ksp->ks_class, "device_error", 12) != 0 && 386*7c478bd9Sstevel@tonic-gate strncmp(ksp->ks_class, "iopath_error", 12) != 0) 387*7c478bd9Sstevel@tonic-gate continue; 388*7c478bd9Sstevel@tonic-gate 389*7c478bd9Sstevel@tonic-gate /* 390*7c478bd9Sstevel@tonic-gate * Some drivers may not follow the naming convention 391*7c478bd9Sstevel@tonic-gate * for error kstats (i.e., drivername,err) so 392*7c478bd9Sstevel@tonic-gate * be sure we don't walk off the end. 393*7c478bd9Sstevel@tonic-gate */ 394*7c478bd9Sstevel@tonic-gate while (*ename && *ename != ',') { 395*7c478bd9Sstevel@tonic-gate *dname = *ename; 396*7c478bd9Sstevel@tonic-gate dname++; 397*7c478bd9Sstevel@tonic-gate ename++; 398*7c478bd9Sstevel@tonic-gate } 399*7c478bd9Sstevel@tonic-gate *dname = '\0'; 400*7c478bd9Sstevel@tonic-gate 401*7c478bd9Sstevel@tonic-gate iodev = find_iodev_by_name(ss->s_iodevs, kstat_name); 402*7c478bd9Sstevel@tonic-gate 403*7c478bd9Sstevel@tonic-gate if (iodev == NULL) 404*7c478bd9Sstevel@tonic-gate continue; 405*7c478bd9Sstevel@tonic-gate 406*7c478bd9Sstevel@tonic-gate if (kstat_read(kc, ksp, NULL) == -1) 407*7c478bd9Sstevel@tonic-gate return (errno); 408*7c478bd9Sstevel@tonic-gate if (kstat_copy(ksp, &iodev->is_errors) == -1) 409*7c478bd9Sstevel@tonic-gate return (errno); 410*7c478bd9Sstevel@tonic-gate } 411*7c478bd9Sstevel@tonic-gate 412*7c478bd9Sstevel@tonic-gate return (0); 413*7c478bd9Sstevel@tonic-gate } 414*7c478bd9Sstevel@tonic-gate 415*7c478bd9Sstevel@tonic-gate static void 416*7c478bd9Sstevel@tonic-gate get_ids(struct iodev_snapshot *iodev, const char *pretty) 417*7c478bd9Sstevel@tonic-gate { 418*7c478bd9Sstevel@tonic-gate int ctr, disk, slice, ret; 419*7c478bd9Sstevel@tonic-gate char *target; 420*7c478bd9Sstevel@tonic-gate const char *p1; 421*7c478bd9Sstevel@tonic-gate const char *p2; 422*7c478bd9Sstevel@tonic-gate 423*7c478bd9Sstevel@tonic-gate if (pretty == NULL) 424*7c478bd9Sstevel@tonic-gate return; 425*7c478bd9Sstevel@tonic-gate 426*7c478bd9Sstevel@tonic-gate if (sscanf(pretty, "c%d", &ctr) != 1) 427*7c478bd9Sstevel@tonic-gate return; 428*7c478bd9Sstevel@tonic-gate 429*7c478bd9Sstevel@tonic-gate p1 = pretty; 430*7c478bd9Sstevel@tonic-gate while (*p1 && *p1 != 't') 431*7c478bd9Sstevel@tonic-gate ++p1; 432*7c478bd9Sstevel@tonic-gate 433*7c478bd9Sstevel@tonic-gate if (!*p1) 434*7c478bd9Sstevel@tonic-gate return; 435*7c478bd9Sstevel@tonic-gate ++p1; 436*7c478bd9Sstevel@tonic-gate 437*7c478bd9Sstevel@tonic-gate p2 = p1; 438*7c478bd9Sstevel@tonic-gate while (*p2 && *p2 != 'd') 439*7c478bd9Sstevel@tonic-gate ++p2; 440*7c478bd9Sstevel@tonic-gate 441*7c478bd9Sstevel@tonic-gate if (!*p2 || p2 == p1) 442*7c478bd9Sstevel@tonic-gate return; 443*7c478bd9Sstevel@tonic-gate 444*7c478bd9Sstevel@tonic-gate target = safe_alloc(1 + p2 - p1); 445*7c478bd9Sstevel@tonic-gate (void) strlcpy(target, p1, 1 + p2 - p1); 446*7c478bd9Sstevel@tonic-gate 447*7c478bd9Sstevel@tonic-gate ret = sscanf(p2, "d%d%*[sp]%d", &disk, &slice); 448*7c478bd9Sstevel@tonic-gate 449*7c478bd9Sstevel@tonic-gate if (ret == 2 && iodev->is_type == IODEV_PARTITION) { 450*7c478bd9Sstevel@tonic-gate iodev->is_id.id = slice; 451*7c478bd9Sstevel@tonic-gate iodev->is_parent_id.id = disk; 452*7c478bd9Sstevel@tonic-gate (void) strlcpy(iodev->is_parent_id.tid, target, KSTAT_STRLEN); 453*7c478bd9Sstevel@tonic-gate } else if (ret == 1) { 454*7c478bd9Sstevel@tonic-gate if (iodev->is_type == IODEV_DISK) { 455*7c478bd9Sstevel@tonic-gate iodev->is_id.id = disk; 456*7c478bd9Sstevel@tonic-gate (void) strlcpy(iodev->is_id.tid, target, KSTAT_STRLEN); 457*7c478bd9Sstevel@tonic-gate iodev->is_parent_id.id = ctr; 458*7c478bd9Sstevel@tonic-gate } else if (iodev->is_type == IODEV_IOPATH) { 459*7c478bd9Sstevel@tonic-gate iodev->is_parent_id.id = disk; 460*7c478bd9Sstevel@tonic-gate (void) strlcpy(iodev->is_parent_id.tid, 461*7c478bd9Sstevel@tonic-gate target, KSTAT_STRLEN); 462*7c478bd9Sstevel@tonic-gate } 463*7c478bd9Sstevel@tonic-gate } 464*7c478bd9Sstevel@tonic-gate 465*7c478bd9Sstevel@tonic-gate free(target); 466*7c478bd9Sstevel@tonic-gate } 467*7c478bd9Sstevel@tonic-gate 468*7c478bd9Sstevel@tonic-gate static char * 469*7c478bd9Sstevel@tonic-gate get_slice(int partition, disk_list_t *dl) 470*7c478bd9Sstevel@tonic-gate { 471*7c478bd9Sstevel@tonic-gate char *tmpbuf; 472*7c478bd9Sstevel@tonic-gate size_t tmplen; 473*7c478bd9Sstevel@tonic-gate 474*7c478bd9Sstevel@tonic-gate if (!(dl->flags & SLICES_OK)) 475*7c478bd9Sstevel@tonic-gate return (NULL); 476*7c478bd9Sstevel@tonic-gate if (partition < 0 || partition >= NDKMAP) 477*7c478bd9Sstevel@tonic-gate return (NULL); 478*7c478bd9Sstevel@tonic-gate 479*7c478bd9Sstevel@tonic-gate /* space for 's', and integer < NDKMAP (16) */ 480*7c478bd9Sstevel@tonic-gate tmplen = strlen(dl->dsk) + strlen("sXX") + 1; 481*7c478bd9Sstevel@tonic-gate tmpbuf = safe_alloc(tmplen); 482*7c478bd9Sstevel@tonic-gate 483*7c478bd9Sstevel@tonic-gate /* 484*7c478bd9Sstevel@tonic-gate * This is a regular slice. Create the name and 485*7c478bd9Sstevel@tonic-gate * copy it for use by the calling routine. 486*7c478bd9Sstevel@tonic-gate */ 487*7c478bd9Sstevel@tonic-gate (void) snprintf(tmpbuf, tmplen, "%ss%d", dl->dsk, partition); 488*7c478bd9Sstevel@tonic-gate return (tmpbuf); 489*7c478bd9Sstevel@tonic-gate } 490*7c478bd9Sstevel@tonic-gate 491*7c478bd9Sstevel@tonic-gate static char * 492*7c478bd9Sstevel@tonic-gate get_intel_partition(int partition, disk_list_t *dl) 493*7c478bd9Sstevel@tonic-gate { 494*7c478bd9Sstevel@tonic-gate char *tmpbuf; 495*7c478bd9Sstevel@tonic-gate size_t tmplen; 496*7c478bd9Sstevel@tonic-gate 497*7c478bd9Sstevel@tonic-gate if (partition <= 0 || !(dl->flags & PARTITIONS_OK)) 498*7c478bd9Sstevel@tonic-gate return (NULL); 499*7c478bd9Sstevel@tonic-gate 500*7c478bd9Sstevel@tonic-gate /* 501*7c478bd9Sstevel@tonic-gate * See if it falls in the range of allowable partitions. The 502*7c478bd9Sstevel@tonic-gate * fdisk partitions show up after the traditional slices so we 503*7c478bd9Sstevel@tonic-gate * determine which partition we're in and return that. 504*7c478bd9Sstevel@tonic-gate * The NUMPART + 1 is not a mistake. There are currently 505*7c478bd9Sstevel@tonic-gate * FD_NUMPART + 1 partitions that show up in the device directory. 506*7c478bd9Sstevel@tonic-gate */ 507*7c478bd9Sstevel@tonic-gate partition -= NDKMAP; 508*7c478bd9Sstevel@tonic-gate if (partition < 0 || partition >= (FD_NUMPART + 1)) 509*7c478bd9Sstevel@tonic-gate return (NULL); 510*7c478bd9Sstevel@tonic-gate 511*7c478bd9Sstevel@tonic-gate /* space for 'p', and integer < NDKMAP (16) */ 512*7c478bd9Sstevel@tonic-gate tmplen = strlen(dl->dsk) + strlen("pXX") + 1; 513*7c478bd9Sstevel@tonic-gate tmpbuf = safe_alloc(tmplen); 514*7c478bd9Sstevel@tonic-gate 515*7c478bd9Sstevel@tonic-gate (void) snprintf(tmpbuf, tmplen, "%sp%d", dl->dsk, partition); 516*7c478bd9Sstevel@tonic-gate return (tmpbuf); 517*7c478bd9Sstevel@tonic-gate } 518*7c478bd9Sstevel@tonic-gate 519*7c478bd9Sstevel@tonic-gate static void 520*7c478bd9Sstevel@tonic-gate get_pretty_name(enum snapshot_types types, struct iodev_snapshot *iodev, 521*7c478bd9Sstevel@tonic-gate kstat_ctl_t *kc) 522*7c478bd9Sstevel@tonic-gate { 523*7c478bd9Sstevel@tonic-gate disk_list_t *dl; 524*7c478bd9Sstevel@tonic-gate char *pretty = NULL; 525*7c478bd9Sstevel@tonic-gate char *tmp; 526*7c478bd9Sstevel@tonic-gate int partition; 527*7c478bd9Sstevel@tonic-gate 528*7c478bd9Sstevel@tonic-gate if (iodev->is_type == IODEV_NFS) { 529*7c478bd9Sstevel@tonic-gate if (!(types & SNAP_IODEV_PRETTY)) 530*7c478bd9Sstevel@tonic-gate return; 531*7c478bd9Sstevel@tonic-gate 532*7c478bd9Sstevel@tonic-gate iodev->is_pretty = lookup_nfs_name(iodev->is_name, kc); 533*7c478bd9Sstevel@tonic-gate return; 534*7c478bd9Sstevel@tonic-gate } 535*7c478bd9Sstevel@tonic-gate 536*7c478bd9Sstevel@tonic-gate if (iodev->is_type == IODEV_IOPATH) { 537*7c478bd9Sstevel@tonic-gate char buf[KSTAT_STRLEN]; 538*7c478bd9Sstevel@tonic-gate size_t len; 539*7c478bd9Sstevel@tonic-gate 540*7c478bd9Sstevel@tonic-gate tmp = iodev->is_name; 541*7c478bd9Sstevel@tonic-gate while (*tmp && *tmp != '.') 542*7c478bd9Sstevel@tonic-gate tmp++; 543*7c478bd9Sstevel@tonic-gate if (!*tmp) 544*7c478bd9Sstevel@tonic-gate return; 545*7c478bd9Sstevel@tonic-gate (void) strlcpy(buf, iodev->is_name, 1 + tmp - iodev->is_name); 546*7c478bd9Sstevel@tonic-gate dl = lookup_ks_name(buf); 547*7c478bd9Sstevel@tonic-gate if (dl == NULL || dl->dsk == NULL) 548*7c478bd9Sstevel@tonic-gate return; 549*7c478bd9Sstevel@tonic-gate len = strlen(dl->dsk) + strlen(tmp) + 1; 550*7c478bd9Sstevel@tonic-gate pretty = safe_alloc(len); 551*7c478bd9Sstevel@tonic-gate (void) strlcpy(pretty, dl->dsk, len); 552*7c478bd9Sstevel@tonic-gate (void) strlcat(pretty, tmp, len); 553*7c478bd9Sstevel@tonic-gate goto out; 554*7c478bd9Sstevel@tonic-gate } 555*7c478bd9Sstevel@tonic-gate 556*7c478bd9Sstevel@tonic-gate dl = lookup_ks_name(iodev->is_name); 557*7c478bd9Sstevel@tonic-gate if (dl == NULL) 558*7c478bd9Sstevel@tonic-gate return; 559*7c478bd9Sstevel@tonic-gate 560*7c478bd9Sstevel@tonic-gate if (dl->dsk) 561*7c478bd9Sstevel@tonic-gate pretty = safe_strdup(dl->dsk); 562*7c478bd9Sstevel@tonic-gate 563*7c478bd9Sstevel@tonic-gate if (types & SNAP_IODEV_PRETTY) { 564*7c478bd9Sstevel@tonic-gate if (dl->dname) 565*7c478bd9Sstevel@tonic-gate iodev->is_dname = safe_strdup(dl->dname); 566*7c478bd9Sstevel@tonic-gate } 567*7c478bd9Sstevel@tonic-gate 568*7c478bd9Sstevel@tonic-gate if (dl->devidstr) 569*7c478bd9Sstevel@tonic-gate iodev->is_devid = safe_strdup(dl->devidstr); 570*7c478bd9Sstevel@tonic-gate 571*7c478bd9Sstevel@tonic-gate /* look for a possible partition number */ 572*7c478bd9Sstevel@tonic-gate tmp = iodev->is_name; 573*7c478bd9Sstevel@tonic-gate while (*tmp && *tmp != ',') 574*7c478bd9Sstevel@tonic-gate tmp++; 575*7c478bd9Sstevel@tonic-gate if (*tmp != ',') 576*7c478bd9Sstevel@tonic-gate goto out; 577*7c478bd9Sstevel@tonic-gate 578*7c478bd9Sstevel@tonic-gate tmp++; 579*7c478bd9Sstevel@tonic-gate partition = (int)(*tmp - 'a'); 580*7c478bd9Sstevel@tonic-gate 581*7c478bd9Sstevel@tonic-gate if (iodev->is_type == IODEV_PARTITION) { 582*7c478bd9Sstevel@tonic-gate char *part; 583*7c478bd9Sstevel@tonic-gate if ((part = get_slice(partition, dl)) == NULL) 584*7c478bd9Sstevel@tonic-gate part = get_intel_partition(partition, dl); 585*7c478bd9Sstevel@tonic-gate if (part != NULL) { 586*7c478bd9Sstevel@tonic-gate free(pretty); 587*7c478bd9Sstevel@tonic-gate pretty = part; 588*7c478bd9Sstevel@tonic-gate } 589*7c478bd9Sstevel@tonic-gate } 590*7c478bd9Sstevel@tonic-gate 591*7c478bd9Sstevel@tonic-gate out: 592*7c478bd9Sstevel@tonic-gate get_ids(iodev, pretty); 593*7c478bd9Sstevel@tonic-gate 594*7c478bd9Sstevel@tonic-gate /* only fill in the pretty name if specifically asked for */ 595*7c478bd9Sstevel@tonic-gate if (types & SNAP_IODEV_PRETTY) { 596*7c478bd9Sstevel@tonic-gate iodev->is_pretty = pretty; 597*7c478bd9Sstevel@tonic-gate } else { 598*7c478bd9Sstevel@tonic-gate free(pretty); 599*7c478bd9Sstevel@tonic-gate } 600*7c478bd9Sstevel@tonic-gate } 601*7c478bd9Sstevel@tonic-gate 602*7c478bd9Sstevel@tonic-gate static enum iodev_type 603*7c478bd9Sstevel@tonic-gate get_iodev_type(kstat_t *ksp) 604*7c478bd9Sstevel@tonic-gate { 605*7c478bd9Sstevel@tonic-gate if (strcmp(ksp->ks_class, "disk") == 0) 606*7c478bd9Sstevel@tonic-gate return (IODEV_DISK); 607*7c478bd9Sstevel@tonic-gate if (strcmp(ksp->ks_class, "partition") == 0) 608*7c478bd9Sstevel@tonic-gate return (IODEV_PARTITION); 609*7c478bd9Sstevel@tonic-gate if (strcmp(ksp->ks_class, "nfs") == 0) 610*7c478bd9Sstevel@tonic-gate return (IODEV_NFS); 611*7c478bd9Sstevel@tonic-gate if (strcmp(ksp->ks_class, "iopath") == 0) 612*7c478bd9Sstevel@tonic-gate return (IODEV_IOPATH); 613*7c478bd9Sstevel@tonic-gate if (strcmp(ksp->ks_class, "tape") == 0) 614*7c478bd9Sstevel@tonic-gate return (IODEV_TAPE); 615*7c478bd9Sstevel@tonic-gate return (IODEV_UNKNOWN); 616*7c478bd9Sstevel@tonic-gate } 617*7c478bd9Sstevel@tonic-gate 618*7c478bd9Sstevel@tonic-gate int 619*7c478bd9Sstevel@tonic-gate iodev_cmp(struct iodev_snapshot *io1, struct iodev_snapshot *io2) 620*7c478bd9Sstevel@tonic-gate { 621*7c478bd9Sstevel@tonic-gate /* neutral sort order between disk and part */ 622*7c478bd9Sstevel@tonic-gate if (!disk_or_partition(io1->is_type) || 623*7c478bd9Sstevel@tonic-gate !disk_or_partition(io2->is_type)) { 624*7c478bd9Sstevel@tonic-gate if (io1->is_type < io2->is_type) 625*7c478bd9Sstevel@tonic-gate return (-1); 626*7c478bd9Sstevel@tonic-gate if (io1->is_type > io2->is_type) 627*7c478bd9Sstevel@tonic-gate return (1); 628*7c478bd9Sstevel@tonic-gate } 629*7c478bd9Sstevel@tonic-gate 630*7c478bd9Sstevel@tonic-gate /* controller doesn't have ksp */ 631*7c478bd9Sstevel@tonic-gate if (io1->is_ksp && io2->is_ksp) { 632*7c478bd9Sstevel@tonic-gate if (strcmp(io1->is_module, io2->is_module) != 0) 633*7c478bd9Sstevel@tonic-gate return (strcmp(io1->is_module, io2->is_module)); 634*7c478bd9Sstevel@tonic-gate if (io1->is_instance < io2->is_instance) 635*7c478bd9Sstevel@tonic-gate return (-1); 636*7c478bd9Sstevel@tonic-gate if (io1->is_instance > io2->is_instance) 637*7c478bd9Sstevel@tonic-gate return (1); 638*7c478bd9Sstevel@tonic-gate } else { 639*7c478bd9Sstevel@tonic-gate if (io1->is_id.id < io2->is_id.id) 640*7c478bd9Sstevel@tonic-gate return (-1); 641*7c478bd9Sstevel@tonic-gate if (io1->is_id.id > io2->is_id.id) 642*7c478bd9Sstevel@tonic-gate return (1); 643*7c478bd9Sstevel@tonic-gate } 644*7c478bd9Sstevel@tonic-gate 645*7c478bd9Sstevel@tonic-gate return (strcmp(io1->is_name, io2->is_name)); 646*7c478bd9Sstevel@tonic-gate } 647*7c478bd9Sstevel@tonic-gate 648*7c478bd9Sstevel@tonic-gate int 649*7c478bd9Sstevel@tonic-gate acquire_iodevs(struct snapshot *ss, kstat_ctl_t *kc, struct iodev_filter *df) 650*7c478bd9Sstevel@tonic-gate { 651*7c478bd9Sstevel@tonic-gate kstat_t *ksp; 652*7c478bd9Sstevel@tonic-gate int err = 0; 653*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *pos; 654*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *list = NULL; 655*7c478bd9Sstevel@tonic-gate 656*7c478bd9Sstevel@tonic-gate ss->s_nr_iodevs = 0; 657*7c478bd9Sstevel@tonic-gate 658*7c478bd9Sstevel@tonic-gate for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { 659*7c478bd9Sstevel@tonic-gate enum iodev_type type; 660*7c478bd9Sstevel@tonic-gate 661*7c478bd9Sstevel@tonic-gate if (ksp->ks_type != KSTAT_TYPE_IO) 662*7c478bd9Sstevel@tonic-gate continue; 663*7c478bd9Sstevel@tonic-gate 664*7c478bd9Sstevel@tonic-gate /* e.g. "usb_byte_count" is not handled */ 665*7c478bd9Sstevel@tonic-gate if ((type = get_iodev_type(ksp)) == IODEV_UNKNOWN) 666*7c478bd9Sstevel@tonic-gate continue; 667*7c478bd9Sstevel@tonic-gate 668*7c478bd9Sstevel@tonic-gate if (df && !(type & df->if_allowed_types)) 669*7c478bd9Sstevel@tonic-gate continue; 670*7c478bd9Sstevel@tonic-gate 671*7c478bd9Sstevel@tonic-gate if ((pos = malloc(sizeof (struct iodev_snapshot))) == NULL) { 672*7c478bd9Sstevel@tonic-gate err = errno; 673*7c478bd9Sstevel@tonic-gate goto out; 674*7c478bd9Sstevel@tonic-gate } 675*7c478bd9Sstevel@tonic-gate 676*7c478bd9Sstevel@tonic-gate (void) memset(pos, 0, sizeof (struct iodev_snapshot)); 677*7c478bd9Sstevel@tonic-gate 678*7c478bd9Sstevel@tonic-gate pos->is_type = type; 679*7c478bd9Sstevel@tonic-gate pos->is_crtime = ksp->ks_crtime; 680*7c478bd9Sstevel@tonic-gate pos->is_snaptime = ksp->ks_snaptime; 681*7c478bd9Sstevel@tonic-gate pos->is_id.id = IODEV_NO_ID; 682*7c478bd9Sstevel@tonic-gate pos->is_parent_id.id = IODEV_NO_ID; 683*7c478bd9Sstevel@tonic-gate pos->is_ksp = ksp; 684*7c478bd9Sstevel@tonic-gate pos->is_instance = ksp->ks_instance; 685*7c478bd9Sstevel@tonic-gate 686*7c478bd9Sstevel@tonic-gate (void) strlcpy(pos->is_module, ksp->ks_module, KSTAT_STRLEN); 687*7c478bd9Sstevel@tonic-gate (void) strlcpy(pos->is_name, ksp->ks_name, KSTAT_STRLEN); 688*7c478bd9Sstevel@tonic-gate get_pretty_name(ss->s_types, pos, kc); 689*7c478bd9Sstevel@tonic-gate 690*7c478bd9Sstevel@tonic-gate /* 691*7c478bd9Sstevel@tonic-gate * We must insert in sort order so e.g. vmstat -l 692*7c478bd9Sstevel@tonic-gate * chooses in order. 693*7c478bd9Sstevel@tonic-gate */ 694*7c478bd9Sstevel@tonic-gate insert_into(&list, pos); 695*7c478bd9Sstevel@tonic-gate } 696*7c478bd9Sstevel@tonic-gate 697*7c478bd9Sstevel@tonic-gate choose_iodevs(ss, list, df); 698*7c478bd9Sstevel@tonic-gate 699*7c478bd9Sstevel@tonic-gate /* before acquire_stats for collate_controller()'s benefit */ 700*7c478bd9Sstevel@tonic-gate if (ss->s_types & SNAP_IODEV_ERRORS) { 701*7c478bd9Sstevel@tonic-gate if ((err = acquire_iodev_errors(ss, kc)) != 0) 702*7c478bd9Sstevel@tonic-gate goto out; 703*7c478bd9Sstevel@tonic-gate } 704*7c478bd9Sstevel@tonic-gate 705*7c478bd9Sstevel@tonic-gate if ((err = acquire_iodev_stats(ss->s_iodevs, kc)) != 0) 706*7c478bd9Sstevel@tonic-gate goto out; 707*7c478bd9Sstevel@tonic-gate 708*7c478bd9Sstevel@tonic-gate err = 0; 709*7c478bd9Sstevel@tonic-gate out: 710*7c478bd9Sstevel@tonic-gate return (err); 711*7c478bd9Sstevel@tonic-gate } 712*7c478bd9Sstevel@tonic-gate 713*7c478bd9Sstevel@tonic-gate void 714*7c478bd9Sstevel@tonic-gate free_iodev(struct iodev_snapshot *iodev) 715*7c478bd9Sstevel@tonic-gate { 716*7c478bd9Sstevel@tonic-gate while (iodev->is_children) { 717*7c478bd9Sstevel@tonic-gate struct iodev_snapshot *tmp = iodev->is_children; 718*7c478bd9Sstevel@tonic-gate iodev->is_children = iodev->is_children->is_next; 719*7c478bd9Sstevel@tonic-gate free_iodev(tmp); 720*7c478bd9Sstevel@tonic-gate } 721*7c478bd9Sstevel@tonic-gate 722*7c478bd9Sstevel@tonic-gate free(iodev->is_errors.ks_data); 723*7c478bd9Sstevel@tonic-gate free(iodev->is_pretty); 724*7c478bd9Sstevel@tonic-gate free(iodev->is_dname); 725*7c478bd9Sstevel@tonic-gate free(iodev->is_devid); 726*7c478bd9Sstevel@tonic-gate free(iodev); 727*7c478bd9Sstevel@tonic-gate } 728