1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #define _RDC_ 27 #include <sys/types.h> 28 #include <sys/ksynch.h> 29 #include <sys/kmem.h> 30 #include <sys/errno.h> 31 #include <sys/conf.h> 32 #include <sys/cmn_err.h> 33 #include <sys/modctl.h> 34 #include <sys/cred.h> 35 #include <sys/ddi.h> 36 #include <sys/unistat/spcs_s.h> 37 #include <sys/unistat/spcs_s_k.h> 38 #include <sys/unistat/spcs_errors.h> 39 40 #include <sys/nsc_thread.h> 41 #ifdef DS_DDICT 42 #include "../contract.h" 43 #endif 44 #include <sys/nsctl/nsctl.h> 45 #include <sys/nsctl/nsvers.h> 46 47 #include <sys/sdt.h> /* dtrace is S10 or later */ 48 49 #include "rdc.h" 50 #include "rdc_io.h" 51 #include "rdc_bitmap.h" 52 #include "rdc_ioctl.h" 53 #include "rdcsrv.h" 54 #include "rdc_diskq.h" 55 56 #define DIDINIT 0x01 57 #define DIDNODES 0x02 58 #define DIDCONFIG 0x04 59 60 static int rdcopen(dev_t *devp, int flag, int otyp, cred_t *crp); 61 static int rdcclose(dev_t dev, int flag, int otyp, cred_t *crp); 62 static int rdcprint(dev_t dev, char *str); 63 static int rdcioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *crp, 64 int *rvp); 65 static int rdcattach(dev_info_t *dip, ddi_attach_cmd_t cmd); 66 static int rdcdetach(dev_info_t *dip, ddi_detach_cmd_t cmd); 67 static int rdcgetinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 68 void **result); 69 #ifdef DEBUG 70 static int rdc_clrkstat(void *); 71 #endif 72 73 /* 74 * kstat interface 75 */ 76 static kstat_t *sndr_kstats; 77 78 int sndr_info_stats_update(kstat_t *ksp, int rw); 79 80 static sndr_m_stats_t sndr_info_stats = { 81 {RDC_MKSTAT_MAXSETS, KSTAT_DATA_ULONG}, 82 {RDC_MKSTAT_MAXFBAS, KSTAT_DATA_ULONG}, 83 {RDC_MKSTAT_RPC_TIMEOUT, KSTAT_DATA_ULONG}, 84 {RDC_MKSTAT_HEALTH_THRES, KSTAT_DATA_ULONG}, 85 {RDC_MKSTAT_BITMAP_WRITES, KSTAT_DATA_ULONG}, 86 {RDC_MKSTAT_CLNT_COTS_CALLS, KSTAT_DATA_ULONG}, 87 {RDC_MKSTAT_CLNT_CLTS_CALLS, KSTAT_DATA_ULONG}, 88 {RDC_MKSTAT_SVC_COTS_CALLS, KSTAT_DATA_ULONG}, 89 {RDC_MKSTAT_SVC_CLTS_CALLS, KSTAT_DATA_ULONG}, 90 {RDC_MKSTAT_BITMAP_REF_DELAY, KSTAT_DATA_ULONG} 91 }; 92 93 int rdc_info_stats_update(kstat_t *ksp, int rw); 94 95 static rdc_info_stats_t rdc_info_stats = { 96 {RDC_IKSTAT_FLAGS, KSTAT_DATA_ULONG}, 97 {RDC_IKSTAT_SYNCFLAGS, KSTAT_DATA_ULONG}, 98 {RDC_IKSTAT_BMPFLAGS, KSTAT_DATA_ULONG}, 99 {RDC_IKSTAT_SYNCPOS, KSTAT_DATA_ULONG}, 100 {RDC_IKSTAT_VOLSIZE, KSTAT_DATA_ULONG}, 101 {RDC_IKSTAT_BITSSET, KSTAT_DATA_ULONG}, 102 {RDC_IKSTAT_AUTOSYNC, KSTAT_DATA_ULONG}, 103 {RDC_IKSTAT_MAXQFBAS, KSTAT_DATA_ULONG}, 104 {RDC_IKSTAT_MAXQITEMS, KSTAT_DATA_ULONG}, 105 {RDC_IKSTAT_FILE, KSTAT_DATA_STRING}, 106 {RDC_IKSTAT_SECFILE, KSTAT_DATA_STRING}, 107 {RDC_IKSTAT_BITMAP, KSTAT_DATA_STRING}, 108 {RDC_IKSTAT_PRIMARY_HOST, KSTAT_DATA_STRING}, 109 {RDC_IKSTAT_SECONDARY_HOST, KSTAT_DATA_STRING}, 110 {RDC_IKSTAT_TYPE_FLAG, KSTAT_DATA_ULONG}, 111 {RDC_IKSTAT_BMP_SIZE, KSTAT_DATA_ULONG}, 112 {RDC_IKSTAT_DISK_STATUS, KSTAT_DATA_ULONG}, 113 {RDC_IKSTAT_IF_DOWN, KSTAT_DATA_ULONG}, 114 {RDC_IKSTAT_IF_RPC_VERSION, KSTAT_DATA_ULONG}, 115 {RDC_IKSTAT_ASYNC_BLOCK_HWM, KSTAT_DATA_ULONG}, 116 {RDC_IKSTAT_ASYNC_ITEM_HWM, KSTAT_DATA_ULONG}, 117 {RDC_IKSTAT_ASYNC_THROTTLE_DELAY, KSTAT_DATA_ULONG}, 118 {RDC_IKSTAT_ASYNC_ITEMS, KSTAT_DATA_ULONG}, 119 {RDC_IKSTAT_ASYNC_BLOCKS, KSTAT_DATA_ULONG}, 120 {RDC_IKSTAT_QUEUE_TYPE, KSTAT_DATA_CHAR} 121 }; 122 123 static struct cb_ops rdc_cb_ops = { 124 rdcopen, 125 rdcclose, 126 nulldev, /* no strategy */ 127 rdcprint, 128 nodev, /* no dump */ 129 nodev, /* no read */ 130 nodev, /* no write */ 131 rdcioctl, 132 nodev, /* no devmap */ 133 nodev, /* no mmap */ 134 nodev, /* no segmap */ 135 nochpoll, 136 ddi_prop_op, 137 NULL, /* not STREAMS */ 138 D_NEW | D_MP | D_64BIT, 139 CB_REV, 140 nodev, /* no aread */ 141 nodev, /* no awrite */ 142 }; 143 144 static struct dev_ops rdc_ops = { 145 DEVO_REV, 146 0, 147 rdcgetinfo, 148 nulldev, /* identify */ 149 nulldev, /* probe */ 150 rdcattach, 151 rdcdetach, 152 nodev, /* no reset */ 153 &rdc_cb_ops, 154 (struct bus_ops *)NULL 155 }; 156 157 static struct modldrv rdc_ldrv = { 158 &mod_driverops, 159 "nws:Remote Mirror:" ISS_VERSION_STR, 160 &rdc_ops 161 }; 162 163 static struct modlinkage rdc_modlinkage = { 164 MODREV_1, 165 &rdc_ldrv, 166 NULL 167 }; 168 169 const int sndr_major_rev = ISS_VERSION_MAJ; 170 const int sndr_minor_rev = ISS_VERSION_MIN; 171 const int sndr_micro_rev = ISS_VERSION_MIC; 172 const int sndr_baseline_rev = ISS_VERSION_NUM; 173 static char sndr_version[16]; 174 175 static void *rdc_dip; 176 177 extern int _rdc_init_dev(); 178 extern void _rdc_deinit_dev(); 179 extern void rdc_link_down_free(); 180 181 int rdc_bitmap_mode; 182 int rdc_auto_sync; 183 int rdc_max_sets; 184 extern int rdc_health_thres; 185 186 static const char rdc_built[] = "@(#) rdc: built " __TIME__ " " __DATE__; 187 188 kmutex_t rdc_sync_mutex; 189 rdc_sync_event_t rdc_sync_event; 190 clock_t rdc_sync_event_timeout; 191 192 static void 193 rdc_sync_event_init() 194 { 195 mutex_init(&rdc_sync_mutex, NULL, MUTEX_DRIVER, NULL); 196 mutex_init(&rdc_sync_event.mutex, NULL, MUTEX_DRIVER, NULL); 197 cv_init(&rdc_sync_event.cv, NULL, CV_DRIVER, NULL); 198 cv_init(&rdc_sync_event.done_cv, NULL, CV_DRIVER, NULL); 199 rdc_sync_event.master[0] = 0; 200 rdc_sync_event.lbolt = (clock_t)0; 201 rdc_sync_event_timeout = RDC_SYNC_EVENT_TIMEOUT; 202 } 203 204 205 static void 206 rdc_sync_event_destroy() 207 { 208 mutex_destroy(&rdc_sync_mutex); 209 mutex_destroy(&rdc_sync_event.mutex); 210 cv_destroy(&rdc_sync_event.cv); 211 cv_destroy(&rdc_sync_event.done_cv); 212 } 213 214 215 216 int 217 _init(void) 218 { 219 return (mod_install(&rdc_modlinkage)); 220 } 221 222 int 223 _fini(void) 224 { 225 return (mod_remove(&rdc_modlinkage)); 226 } 227 228 int 229 _info(struct modinfo *modinfop) 230 { 231 return (mod_info(&rdc_modlinkage, modinfop)); 232 } 233 234 static int 235 rdcattach(dev_info_t *dip, ddi_attach_cmd_t cmd) 236 { 237 intptr_t flags; 238 int instance; 239 int i; 240 241 /*CONSTCOND*/ 242 ASSERT(sizeof (u_longlong_t) == 8); 243 244 if (cmd != DDI_ATTACH) 245 return (DDI_FAILURE); 246 247 cmn_err(CE_CONT, "!%s\n", rdc_built); 248 249 (void) strncpy(sndr_version, _VERSION_, sizeof (sndr_version)); 250 251 instance = ddi_get_instance(dip); 252 rdc_dip = dip; 253 254 flags = 0; 255 256 rdc_sync_event_init(); 257 258 /* 259 * rdc_max_sets must be set before calling _rdc_load(). 260 */ 261 262 rdc_max_sets = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 263 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, "rdc_max_sets", 64); 264 265 if (_rdc_init_dev()) { 266 cmn_err(CE_WARN, "rdc: _rdc_init_dev failed"); 267 goto out; 268 } 269 flags |= DIDINIT; 270 271 if (_rdc_load() != 0) { 272 cmn_err(CE_WARN, "rdc: _rdc_load failed"); 273 goto out; 274 } 275 276 if (_rdc_configure()) { 277 cmn_err(CE_WARN, "rdc: _rdc_configure failed"); 278 goto out; 279 } 280 flags |= DIDCONFIG; 281 282 if (ddi_create_minor_node(dip, "rdc", S_IFCHR, instance, DDI_PSEUDO, 0) 283 != DDI_SUCCESS) { 284 cmn_err(CE_WARN, "rdc: could not create node."); 285 goto out; 286 } 287 flags |= DIDNODES; 288 289 rdc_bitmap_mode = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 290 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 291 "rdc_bitmap_mode", 0); 292 293 switch (rdc_bitmap_mode) { 294 case RDC_BMP_AUTO: /* 0 */ 295 break; 296 case RDC_BMP_ALWAYS: /* 1 */ 297 break; 298 case RDC_BMP_NEVER: /* 2 */ 299 cmn_err(CE_NOTE, "SNDR bitmap mode override"); 300 cmn_err(CE_CONT, 301 "SNDR: bitmaps will only be written on shutdown\n"); 302 break; 303 default: /* unknown */ 304 cmn_err(CE_NOTE, 305 "SNDR: unknown bitmap mode %d - autodetecting mode", 306 rdc_bitmap_mode); 307 rdc_bitmap_mode = RDC_BMP_AUTO; 308 break; 309 } 310 311 rdc_bitmap_init(); 312 313 rdc_auto_sync = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 314 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 315 "rdc_auto_sync", 0); 316 317 i = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 318 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 319 "rdc_health_thres", RDC_HEALTH_THRESHOLD); 320 if (i >= RDC_MIN_HEALTH_THRES) 321 rdc_health_thres = i; 322 else 323 cmn_err(CE_WARN, "value rdc_heath_thres from rdc.conf ignored " 324 "as it is smaller than the min value of %d", 325 RDC_MIN_HEALTH_THRES); 326 327 ddi_set_driver_private(dip, (caddr_t)flags); 328 ddi_report_dev(dip); 329 330 sndr_kstats = kstat_create(RDC_KSTAT_MODULE, 0, 331 RDC_KSTAT_MINFO, RDC_KSTAT_CLASS, KSTAT_TYPE_NAMED, 332 sizeof (sndr_m_stats_t) / sizeof (kstat_named_t), 333 KSTAT_FLAG_VIRTUAL); 334 335 if (sndr_kstats) { 336 sndr_kstats->ks_data = &sndr_info_stats; 337 sndr_kstats->ks_update = sndr_info_stats_update; 338 sndr_kstats->ks_private = &rdc_k_info[0]; 339 kstat_install(sndr_kstats); 340 } else 341 cmn_err(CE_WARN, "SNDR: module kstats failed"); 342 343 return (DDI_SUCCESS); 344 345 out: 346 DTRACE_PROBE(rdc_attach_failed); 347 ddi_set_driver_private(dip, (caddr_t)flags); 348 (void) rdcdetach(dip, DDI_DETACH); 349 return (DDI_FAILURE); 350 } 351 352 static int 353 rdcdetach(dev_info_t *dip, ddi_detach_cmd_t cmd) 354 { 355 rdc_k_info_t *krdc; 356 rdc_u_info_t *urdc; 357 int rdcd; 358 intptr_t flags; 359 360 361 if (cmd != DDI_DETACH) { 362 DTRACE_PROBE(rdc_detach_unknown_cmd); 363 return (DDI_FAILURE); 364 } 365 366 if (rdc_k_info == NULL || rdc_u_info == NULL) 367 goto cleanup; 368 369 mutex_enter(&rdc_conf_lock); 370 371 for (rdcd = 0; rdcd < rdc_max_sets; rdcd++) { 372 krdc = &rdc_k_info[rdcd]; 373 urdc = &rdc_u_info[rdcd]; 374 375 if (IS_ENABLED(urdc) || krdc->devices) { 376 #ifdef DEBUG 377 cmn_err(CE_WARN, 378 "!rdc: cannot detach, rdcd %d still in use", rdcd); 379 #endif 380 mutex_exit(&rdc_conf_lock); 381 DTRACE_PROBE(rdc_detach_err_busy); 382 return (DDI_FAILURE); 383 } 384 } 385 386 mutex_exit(&rdc_conf_lock); 387 388 cleanup: 389 flags = (intptr_t)ddi_get_driver_private(dip); 390 391 if (flags & DIDNODES) 392 ddi_remove_minor_node(dip, NULL); 393 394 if (sndr_kstats) { 395 kstat_delete(sndr_kstats); 396 } 397 if (flags & DIDINIT) 398 _rdc_deinit_dev(); 399 400 if (flags & DIDCONFIG) { 401 (void) _rdc_deconfigure(); 402 (void) _rdc_unload(); 403 rdcsrv_unload(); 404 } 405 406 rdc_sync_event_destroy(); 407 rdc_link_down_free(); 408 409 rdc_dip = NULL; 410 return (DDI_SUCCESS); 411 } 412 413 /* ARGSUSED */ 414 static int 415 rdcgetinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 416 { 417 int rc = DDI_FAILURE; 418 419 switch (infocmd) { 420 421 case DDI_INFO_DEVT2DEVINFO: 422 *result = rdc_dip; 423 rc = DDI_SUCCESS; 424 break; 425 426 case DDI_INFO_DEVT2INSTANCE: 427 /* We only have a single instance */ 428 *result = 0; 429 rc = DDI_SUCCESS; 430 break; 431 432 default: 433 break; 434 } 435 436 return (rc); 437 } 438 439 440 /* ARGSUSED */ 441 442 static int 443 rdcopen(dev_t *devp, int flag, int otyp, cred_t *crp) 444 { 445 return (0); 446 } 447 448 449 /* ARGSUSED */ 450 451 static int 452 rdcclose(dev_t dev, int flag, int otyp, cred_t *crp) 453 { 454 return (0); 455 } 456 457 /* ARGSUSED */ 458 459 static int 460 rdcprint(dev_t dev, char *str) 461 { 462 int instance = 0; 463 464 cmn_err(CE_WARN, "rdc%d: %s", instance, str); 465 return (0); 466 } 467 468 469 static int 470 convert_ioctl_args(int cmd, intptr_t arg, int mode, _rdc_ioctl_t *args) 471 { 472 _rdc_ioctl32_t args32; 473 474 if (ddi_copyin((void *)arg, &args32, sizeof (_rdc_ioctl32_t), mode)) 475 return (EFAULT); 476 477 bzero((void *)args, sizeof (_rdc_ioctl_t)); 478 479 switch (cmd) { 480 case RDC_CONFIG: 481 args->arg0 = (uint32_t)args32.arg0; /* _rdc_config_t * */ 482 args->arg1 = (uint32_t)args32.arg1; /* pointer */ 483 args->arg2 = (uint32_t)args32.arg2; /* size */ 484 args->ustatus = (spcs_s_info_t)args32.ustatus; 485 break; 486 487 case RDC_STATUS: 488 args->arg0 = (uint32_t)args32.arg0; /* pointer */ 489 args->ustatus = (spcs_s_info_t)args32.ustatus; 490 break; 491 492 case RDC_ENABLE_SVR: 493 args->arg0 = (uint32_t)args32.arg0; /* _rdc_svc_args * */ 494 break; 495 496 case RDC_VERSION: 497 args->arg0 = (uint32_t)args32.arg0; /* _rdc_version_t * */ 498 args->ustatus = (spcs_s_info_t)args32.ustatus; 499 break; 500 501 case RDC_SYNC_EVENT: 502 args->arg0 = (uint32_t)args32.arg0; /* char * */ 503 args->arg1 = (uint32_t)args32.arg1; /* char * */ 504 args->ustatus = (spcs_s_info_t)args32.ustatus; 505 break; 506 507 case RDC_LINK_DOWN: 508 args->arg0 = (uint32_t)args32.arg0; /* char * */ 509 args->ustatus = (spcs_s_info_t)args32.ustatus; 510 break; 511 case RDC_POOL_CREATE: 512 args->arg0 = (uint32_t)args32.arg0; /* svcpool_args * */ 513 break; 514 case RDC_POOL_WAIT: 515 args->arg0 = (uint32_t)args32.arg0; /* int */ 516 break; 517 case RDC_POOL_RUN: 518 args->arg0 = (uint32_t)args32.arg0; /* int */ 519 break; 520 521 default: 522 return (EINVAL); 523 } 524 525 return (0); 526 } 527 528 529 /* 530 * Yet another standard thing that is not standard ... 531 */ 532 #ifndef offsetof 533 #define offsetof(s, m) ((size_t)(&((s *)0)->m)) 534 #endif 535 536 /* 537 * Build a 32bit rdc_set structure and copyout to the user level. 538 */ 539 int 540 rdc_status_copy32(const void *arg, void *usetp, size_t size, int mode) 541 { 542 rdc_u_info_t *urdc = (rdc_u_info_t *)arg; 543 struct rdc_set32 set32; 544 size_t tailsize; 545 #ifdef DEBUG 546 size_t tailsize32; 547 #endif 548 549 bzero(&set32, sizeof (set32)); 550 551 tailsize = sizeof (struct rdc_addr32) - 552 offsetof(struct rdc_addr32, intf); 553 554 /* primary address structure, avoiding netbuf */ 555 bcopy(&urdc->primary.intf[0], &set32.primary.intf[0], tailsize); 556 557 /* secondary address structure, avoiding netbuf */ 558 bcopy(&urdc->secondary.intf[0], &set32.secondary.intf[0], tailsize); 559 560 /* 561 * the rest, avoiding netconfig 562 * note: the tail must be the same size in both structures 563 */ 564 tailsize = sizeof (struct rdc_set) - offsetof(struct rdc_set, flags); 565 #ifdef DEBUG 566 /* 567 * ASSERT is calling for debug reason, and tailsize32 is only declared 568 * for ASSERT, put them under debug to avoid lint warning. 569 */ 570 tailsize32 = sizeof (struct rdc_set32) - 571 offsetof(struct rdc_set32, flags); 572 ASSERT(tailsize == tailsize32); 573 #endif 574 575 bcopy(&urdc->flags, &set32.flags, tailsize); 576 577 /* copyout to user level */ 578 return (ddi_copyout(&set32, usetp, size, mode)); 579 } 580 581 582 /* 583 * Status ioctl. 584 */ 585 static int 586 rdcstatus(_rdc_ioctl_t *args, int mode) 587 { 588 int (*copyout)(const void *, void *, size_t, int); 589 rdc_u_info_t *urdc; 590 rdc_k_info_t *krdc; 591 disk_queue *dqp; 592 char *usetp; /* pointer to user rdc_set structure */ 593 size_t size; /* sizeof user rdc_set structure */ 594 int32_t *maxsetsp; /* address of status->maxsets; */ 595 int nset, max, i, j; 596 597 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 598 struct rdc_status32 status32; 599 600 if (ddi_copyin((void *)args->arg0, &status32, 601 sizeof (status32), mode)) { 602 return (EFAULT); 603 } 604 605 usetp = ((char *)args->arg0) + 606 offsetof(struct rdc_status32, rdc_set); 607 maxsetsp = (int32_t *)((char *)args->arg0 + 608 offsetof(struct rdc_status32, maxsets)); 609 nset = status32.nset; 610 611 size = sizeof (struct rdc_set32); 612 copyout = rdc_status_copy32; 613 } else { 614 struct rdc_status status; 615 616 if (ddi_copyin((void *)args->arg0, &status, 617 sizeof (status), mode)) { 618 return (EFAULT); 619 } 620 621 usetp = ((char *)args->arg0) + 622 offsetof(struct rdc_status, rdc_set); 623 maxsetsp = (int32_t *)((char *)args->arg0 + 624 offsetof(struct rdc_status, maxsets)); 625 nset = status.nset; 626 627 size = sizeof (struct rdc_set); 628 copyout = ddi_copyout; 629 } 630 631 max = min(nset, rdc_max_sets); 632 633 for (i = 0, j = 0; i < max; i++) { 634 urdc = &rdc_u_info[i]; 635 krdc = &rdc_k_info[i]; 636 637 if (!IS_ENABLED(urdc)) 638 continue; 639 640 /* 641 * sneak out qstate in urdc->flags 642 * this is harmless because it's value is not used 643 * in urdc->flags. the real qstate is kept in 644 * group->diskq->disk_hdr.h.state 645 */ 646 if (RDC_IS_DISKQ(krdc->group)) { 647 dqp = &krdc->group->diskq; 648 if (IS_QSTATE(dqp, RDC_QNOBLOCK)) 649 urdc->flags |= RDC_QNOBLOCK; 650 } 651 652 j++; 653 if ((*copyout)(urdc, usetp, size, mode) != 0) 654 return (EFAULT); 655 656 urdc->flags &= ~RDC_QNOBLOCK; /* clear qstate */ 657 usetp += size; 658 } 659 660 /* copyout rdc_max_sets value */ 661 662 if (ddi_copyout(&rdc_max_sets, maxsetsp, sizeof (*maxsetsp), mode) != 0) 663 return (EFAULT); 664 665 /* copyout number of sets manipulated */ 666 667 /*CONSTCOND*/ 668 ASSERT(offsetof(struct rdc_status32, nset) == 0); 669 /*CONSTCOND*/ 670 ASSERT(offsetof(struct rdc_status, nset) == 0); 671 672 return (ddi_copyout(&j, (void *)args->arg0, sizeof (int), mode)); 673 } 674 675 676 /* ARGSUSED */ 677 678 static int 679 rdcioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *crp, int *rvp) 680 { 681 spcs_s_info_t kstatus = NULL; 682 _rdc_ioctl_t args; 683 int error; 684 int rc = 0; 685 686 if (cmd != RDC_STATUS) { 687 if ((error = drv_priv(crp)) != 0) 688 return (error); 689 } 690 #ifdef DEBUG 691 if (cmd == RDC_ASYNC6) { 692 rc = rdc_async6((void *)arg, mode, rvp); 693 return (rc); 694 } 695 696 if (cmd == RDC_CLRKSTAT) { 697 rc = rdc_clrkstat((void *)arg); 698 return (rc); 699 } 700 701 if (cmd == RDC_STALL0) { 702 if (((int)arg > 1) || ((int)arg < 0)) 703 return (EINVAL); 704 rdc_stallzero((int)arg); 705 return (0); 706 } 707 if (cmd == RDC_READGEN) { 708 rc = rdc_readgen((void *)arg, mode, rvp); 709 return (rc); 710 } 711 #endif 712 if (cmd == RDC_BITMAPOP) { 713 rdc_bitmap_op_t bmop; 714 rdc_bitmap_op32_t bmop32; 715 716 if (ddi_model_convert_from(mode & FMODELS) 717 == DDI_MODEL_ILP32) { 718 if (ddi_copyin((void *)arg, &bmop32, sizeof (bmop32), 719 mode)) 720 return (EFAULT); 721 bmop.offset = bmop32.offset; 722 bmop.op = bmop32.op; 723 (void) strncpy(bmop.sechost, bmop32.sechost, 724 MAX_RDC_HOST_SIZE); 725 (void) strncpy(bmop.secfile, bmop32.secfile, 726 NSC_MAXPATH); 727 bmop.len = bmop32.len; 728 bmop.addr = (unsigned long)bmop32.addr; 729 } else { 730 if (ddi_copyin((void *)arg, &bmop, sizeof (bmop), 731 mode)) 732 return (EFAULT); 733 } 734 rc = rdc_bitmapset(bmop.op, bmop.sechost, bmop.secfile, 735 (void *)bmop.addr, bmop.len, bmop.offset, mode); 736 return (rc); 737 } 738 739 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 740 if ((rc = convert_ioctl_args(cmd, arg, mode, &args)) != 0) 741 return (rc); 742 } else { 743 if (ddi_copyin((void *)arg, &args, 744 sizeof (_rdc_ioctl_t), mode)) { 745 return (EFAULT); 746 } 747 } 748 749 kstatus = spcs_s_kcreate(); 750 if (!kstatus) { 751 return (ENOMEM); 752 } 753 754 755 switch (cmd) { 756 757 case RDC_POOL_CREATE: { 758 struct svcpool_args p; 759 760 if (ddi_copyin((void *)arg, &p, sizeof (p), mode)) { 761 spcs_s_kfree(kstatus); 762 return (EFAULT); 763 } 764 error = svc_pool_create(&p); 765 766 break; 767 } 768 case RDC_POOL_WAIT: { 769 int id; 770 771 if (ddi_copyin((void *)arg, &id, sizeof (id), mode)) { 772 spcs_s_kfree(kstatus); 773 return (EFAULT); 774 } 775 776 error = svc_wait(id); 777 break; 778 } 779 case RDC_POOL_RUN: { 780 int id; 781 782 if (ddi_copyin((void *)arg, &id, sizeof (id), mode)) { 783 spcs_s_kfree(kstatus); 784 return (EFAULT); 785 } 786 error = svc_do_run(id); 787 break; 788 } 789 case RDC_ENABLE_SVR: 790 { 791 STRUCT_DECL(rdc_svc_args, parms); 792 793 STRUCT_INIT(parms, mode); 794 /* Only used by sndrd which does not use unistat */ 795 796 if (ddi_copyin((void *)args.arg0, STRUCT_BUF(parms), 797 STRUCT_SIZE(parms), mode)) { 798 spcs_s_kfree(kstatus); 799 return (EFAULT); 800 } 801 rc = rdc_start_server(STRUCT_BUF(parms), mode); 802 } 803 break; 804 805 case RDC_STATUS: 806 rc = rdcstatus(&args, mode); 807 break; 808 809 case RDC_CONFIG: 810 rc = _rdc_config((void *)args.arg0, mode, kstatus, rvp); 811 spcs_s_copyoutf(&kstatus, args.ustatus); 812 return (rc); 813 814 case RDC_VERSION: 815 { 816 STRUCT_DECL(rdc_version, parms); 817 818 STRUCT_INIT(parms, mode); 819 820 STRUCT_FSET(parms, major, sndr_major_rev); 821 STRUCT_FSET(parms, minor, sndr_minor_rev); 822 STRUCT_FSET(parms, micro, sndr_micro_rev); 823 STRUCT_FSET(parms, baseline, sndr_baseline_rev); 824 825 if (ddi_copyout(STRUCT_BUF(parms), (void *)args.arg0, 826 STRUCT_SIZE(parms), mode)) { 827 spcs_s_kfree(kstatus); 828 return (EFAULT); 829 } 830 break; 831 } 832 833 case RDC_LINK_DOWN: 834 /* char *host from user */ 835 rc = _rdc_link_down((void *)args.arg0, mode, kstatus, rvp); 836 spcs_s_copyoutf(&kstatus, args.ustatus); 837 838 return (rc); 839 840 case RDC_SYNC_EVENT: 841 rc = _rdc_sync_event_wait((void *)args.arg0, (void *)args.arg1, 842 mode, kstatus, rvp); 843 spcs_s_copyoutf(&kstatus, args.ustatus); 844 845 return (rc); 846 847 848 default: 849 rc = EINVAL; 850 break; 851 } 852 853 spcs_s_kfree(kstatus); 854 return (rc); 855 } 856 857 int 858 sndr_info_stats_update(kstat_t *ksp, int rw) 859 { 860 extern int rdc_rpc_tmout; 861 extern int rdc_health_thres; 862 extern int rdc_bitmap_delay; 863 extern long rdc_clnt_count; 864 extern long rdc_svc_count; 865 sndr_m_stats_t *info_stats; 866 rdc_k_info_t *krdc; 867 868 info_stats = (sndr_m_stats_t *)(ksp->ks_data); 869 krdc = (rdc_k_info_t *)(ksp->ks_private); 870 871 /* no writes currently allowed */ 872 873 if (rw == KSTAT_WRITE) { 874 return (EACCES); 875 } 876 877 /* default to READ */ 878 info_stats->m_maxsets.value.ul = rdc_max_sets; 879 info_stats->m_maxfbas.value.ul = krdc->maxfbas; 880 info_stats->m_rpc_timeout.value.ul = rdc_rpc_tmout; 881 info_stats->m_health_thres.value.ul = rdc_health_thres; 882 info_stats->m_bitmap_writes.value.ul = krdc->bitmap_write; 883 info_stats->m_bitmap_ref_delay.value.ul = rdc_bitmap_delay; 884 885 /* clts counters not implemented yet */ 886 info_stats->m_clnt_cots_calls.value.ul = rdc_clnt_count; 887 info_stats->m_clnt_clts_calls.value.ul = 0; 888 info_stats->m_svc_cots_calls.value.ul = rdc_svc_count; 889 info_stats->m_svc_clts_calls.value.ul = 0; 890 891 return (0); 892 } 893 894 /* 895 * copy tailsize-1 bytes of tail of s to s1. 896 */ 897 void 898 rdc_str_tail_cpy(char *s1, char *s, size_t tailsize) 899 { 900 /* To avoid un-terminated string, max size is 16 - 1 */ 901 ssize_t offset = strlen(s) - (tailsize - 1); 902 903 offset = (offset > 0) ? offset : 0; 904 905 /* ensure it's null terminated */ 906 (void) strlcpy(s1, (const char *)(s + offset), tailsize); 907 } 908 909 int 910 rdc_info_stats_update(kstat_t *ksp, int rw) 911 { 912 rdc_info_stats_t *rdc_info_stats; 913 rdc_k_info_t *krdc; 914 rdc_u_info_t *urdc; 915 916 rdc_info_stats = (rdc_info_stats_t *)(ksp->ks_data); 917 krdc = (rdc_k_info_t *)(ksp->ks_private); 918 urdc = &rdc_u_info[krdc->index]; 919 920 /* no writes currently allowed */ 921 922 if (rw == KSTAT_WRITE) { 923 return (EACCES); 924 } 925 926 /* default to READ */ 927 rdc_info_stats->s_flags.value.ul = urdc->flags; 928 rdc_info_stats->s_syncflags.value.ul = 929 urdc->sync_flags; 930 rdc_info_stats->s_bmpflags.value.ul = 931 urdc->bmap_flags; 932 rdc_info_stats->s_syncpos.value.ul = 933 urdc->sync_pos; 934 rdc_info_stats->s_volsize.value.ul = 935 urdc->volume_size; 936 rdc_info_stats->s_bits_set.value.ul = 937 urdc->bits_set; 938 rdc_info_stats->s_autosync.value.ul = 939 urdc->autosync; 940 rdc_info_stats->s_maxqfbas.value.ul = 941 urdc->maxqfbas; 942 rdc_info_stats->s_maxqitems.value.ul = 943 urdc->maxqitems; 944 945 kstat_named_setstr(&rdc_info_stats->s_primary_vol, 946 urdc->primary.file); 947 948 kstat_named_setstr(&rdc_info_stats->s_secondary_vol, 949 urdc->secondary.file); 950 951 if (rdc_get_vflags(urdc) & RDC_PRIMARY) { 952 kstat_named_setstr(&rdc_info_stats->s_bitmap, 953 urdc->primary.bitmap); 954 } else { 955 kstat_named_setstr(&rdc_info_stats->s_bitmap, 956 urdc->secondary.bitmap); 957 } 958 959 kstat_named_setstr(&rdc_info_stats->s_primary_intf, 960 urdc->primary.intf); 961 962 kstat_named_setstr(&rdc_info_stats->s_secondary_intf, 963 urdc->secondary.intf); 964 965 rdc_info_stats->s_type_flag.value.ul = krdc->type_flag; 966 rdc_info_stats->s_bitmap_size.value.ul = krdc->bitmap_size; 967 rdc_info_stats->s_disk_status.value.ul = krdc->disk_status; 968 969 if (krdc->intf) { 970 rdc_info_stats->s_if_if_down.value.ul = krdc->intf->if_down; 971 rdc_info_stats->s_if_rpc_version.value.ul = 972 krdc->intf->rpc_version; 973 } 974 975 /* the type can change without disable/re-enable so... */ 976 bzero(rdc_info_stats->s_aqueue_type.value.c, KSTAT_DATA_CHAR_LEN); 977 if (RDC_IS_MEMQ(krdc->group)) { 978 (void) strcpy(rdc_info_stats->s_aqueue_type.value.c, "memory"); 979 rdc_info_stats->s_aqueue_blk_hwm.value.ul = 980 krdc->group->ra_queue.blocks_hwm; 981 rdc_info_stats->s_aqueue_itm_hwm.value.ul = 982 krdc->group->ra_queue.nitems_hwm; 983 rdc_info_stats->s_aqueue_throttle.value.ul = 984 krdc->group->ra_queue.throttle_delay; 985 rdc_info_stats->s_aqueue_items.value.ul = 986 krdc->group->ra_queue.nitems; 987 rdc_info_stats->s_aqueue_blocks.value.ul = 988 krdc->group->ra_queue.blocks; 989 990 } else if (RDC_IS_DISKQ(krdc->group)) { 991 disk_queue *q = &krdc->group->diskq; 992 rdc_info_stats->s_aqueue_blk_hwm.value.ul = 993 krdc->group->diskq.blocks_hwm; 994 rdc_info_stats->s_aqueue_itm_hwm.value.ul = 995 krdc->group->diskq.nitems_hwm; 996 rdc_info_stats->s_aqueue_throttle.value.ul = 997 krdc->group->diskq.throttle_delay; 998 rdc_info_stats->s_aqueue_items.value.ul = QNITEMS(q); 999 rdc_info_stats->s_aqueue_blocks.value.ul = QBLOCKS(q); 1000 (void) strcpy(rdc_info_stats->s_aqueue_type.value.c, "disk"); 1001 } 1002 1003 return (0); 1004 } 1005 1006 void 1007 rdc_kstat_create(int index) 1008 { 1009 int j = index; 1010 rdc_k_info_t *krdc = &rdc_k_info[index]; 1011 rdc_u_info_t *urdc = &rdc_u_info[krdc->index]; 1012 size_t varsize; 1013 1014 if (!krdc->set_kstats) { 1015 krdc->set_kstats = kstat_create(RDC_KSTAT_MODULE, j, 1016 RDC_KSTAT_INFO, RDC_KSTAT_CLASS, KSTAT_TYPE_NAMED, 1017 sizeof (rdc_info_stats_t) / sizeof (kstat_named_t), 1018 KSTAT_FLAG_VIRTUAL); 1019 #ifdef DEBUG 1020 if (!krdc->set_kstats) 1021 cmn_err(CE_NOTE, "krdc:u_kstat null"); 1022 #endif 1023 1024 if (krdc->set_kstats) { 1025 /* calculate exact size of KSTAT_DATA_STRINGs */ 1026 varsize = strlen(urdc->primary.file) + 1 1027 + strlen(urdc->secondary.file) + 1 1028 + strlen(urdc->primary.intf) + 1 1029 + strlen(urdc->secondary.intf) + 1; 1030 if (rdc_get_vflags(urdc) & RDC_PRIMARY) { 1031 varsize += strlen(urdc->primary.bitmap) + 1; 1032 } else { 1033 varsize += strlen(urdc->secondary.bitmap) + 1; 1034 } 1035 1036 krdc->set_kstats->ks_data_size += varsize; 1037 krdc->set_kstats->ks_data = &rdc_info_stats; 1038 krdc->set_kstats->ks_update = rdc_info_stats_update; 1039 krdc->set_kstats->ks_private = &rdc_k_info[j]; 1040 kstat_install(krdc->set_kstats); 1041 } else 1042 cmn_err(CE_WARN, "SNDR: k-kstats failed"); 1043 } 1044 1045 krdc->io_kstats = kstat_create(RDC_KSTAT_MODULE, j, NULL, 1046 "disk", KSTAT_TYPE_IO, 1, 0); 1047 if (krdc->io_kstats) { 1048 krdc->io_kstats->ks_lock = &krdc->kstat_mutex; 1049 kstat_install(krdc->io_kstats); 1050 } 1051 krdc->bmp_kstats = kstat_create("sndrbmp", j, NULL, 1052 "disk", KSTAT_TYPE_IO, 1, 0); 1053 if (krdc->bmp_kstats) { 1054 krdc->bmp_kstats->ks_lock = &krdc->bmp_kstat_mutex; 1055 kstat_install(krdc->bmp_kstats); 1056 } 1057 } 1058 1059 void 1060 rdc_kstat_delete(int index) 1061 { 1062 rdc_k_info_t *krdc = &rdc_k_info[index]; 1063 1064 if (krdc->set_kstats) { 1065 kstat_delete(krdc->set_kstats); 1066 krdc->set_kstats = NULL; 1067 } 1068 1069 if (krdc->io_kstats) { 1070 kstat_delete(krdc->io_kstats); 1071 krdc->io_kstats = NULL; 1072 } 1073 if (krdc->bmp_kstats) { 1074 kstat_delete(krdc->bmp_kstats); 1075 krdc->bmp_kstats = NULL; 1076 } 1077 } 1078 1079 #ifdef DEBUG 1080 /* 1081 * Reset the io_kstat structure of the krdc specified 1082 * by the arg index. 1083 */ 1084 static int 1085 rdc_clrkstat(void *arg) 1086 { 1087 int index; 1088 rdc_k_info_t *krdc; 1089 1090 index = (int)(unsigned long)arg; 1091 if ((index < 0) || (index >= rdc_max_sets)) { 1092 return (EINVAL); 1093 } 1094 krdc = &rdc_k_info[index]; 1095 if (krdc->io_kstats) { 1096 kstat_delete(krdc->io_kstats); 1097 krdc->io_kstats = NULL; 1098 } else { 1099 return (EINVAL); 1100 } 1101 krdc->io_kstats = kstat_create(RDC_KSTAT_MODULE, index, NULL, 1102 "disk", KSTAT_TYPE_IO, 1, 0); 1103 if (krdc->io_kstats) { 1104 krdc->io_kstats->ks_lock = &krdc->kstat_mutex; 1105 kstat_install(krdc->io_kstats); 1106 } else { 1107 return (EINVAL); 1108 } 1109 /* 1110 * clear the high water marks and throttle. 1111 */ 1112 if (krdc->group) { 1113 krdc->group->ra_queue.nitems_hwm = 0; 1114 krdc->group->ra_queue.blocks_hwm = 0; 1115 krdc->group->ra_queue.throttle_delay = 0; 1116 } 1117 return (0); 1118 } 1119 #endif 1120