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 /* 23 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 /* 27 * Direct Attached Disk 28 */ 29 30 #include <sys/file.h> 31 #include <sys/scsi/scsi.h> 32 #include <sys/var.h> 33 #include <sys/proc.h> 34 #include <sys/dktp/cm.h> 35 #include <sys/vtoc.h> 36 #include <sys/dkio.h> 37 #include <sys/policy.h> 38 #include <sys/priv.h> 39 40 #include <sys/dktp/dadev.h> 41 #include <sys/dktp/fctypes.h> 42 #include <sys/dktp/flowctrl.h> 43 #include <sys/dktp/tgcom.h> 44 #include <sys/dktp/tgdk.h> 45 #include <sys/dktp/bbh.h> 46 #include <sys/dktp/dadkio.h> 47 #include <sys/dktp/dadk.h> 48 #include <sys/cdio.h> 49 50 /* 51 * Local Function Prototypes 52 */ 53 static void dadk_restart(void *pktp); 54 static void dadk_pktcb(struct cmpkt *pktp); 55 static void dadk_iodone(struct buf *bp); 56 static void dadk_polldone(struct buf *bp); 57 static void dadk_setcap(struct dadk *dadkp); 58 static void dadk_create_errstats(struct dadk *dadkp, int instance); 59 static void dadk_destroy_errstats(struct dadk *dadkp); 60 61 static int dadk_chkerr(struct cmpkt *pktp); 62 static int dadk_ioprep(struct dadk *dadkp, struct cmpkt *pktp); 63 static int dadk_iosetup(struct dadk *dadkp, struct cmpkt *pktp); 64 static int dadk_ioretry(struct cmpkt *pktp, int action); 65 66 static struct cmpkt *dadk_pktprep(struct dadk *dadkp, struct cmpkt *in_pktp, 67 struct buf *bp, void (*cb_func)(struct buf *), int (*func)(caddr_t), 68 caddr_t arg); 69 70 static int dadk_pkt(opaque_t com_data, struct buf *bp, int (*func)(caddr_t), 71 caddr_t arg); 72 static void dadk_transport(opaque_t com_data, struct buf *bp); 73 static int dadk_ctl_ioctl(struct dadk *, uint32_t, uintptr_t, int); 74 75 struct tgcom_objops dadk_com_ops = { 76 nodev, 77 nodev, 78 dadk_pkt, 79 dadk_transport, 80 0, 0 81 }; 82 83 /* 84 * architecture dependent allocation restrictions for dadk_iob_alloc(). For 85 * x86, we'll set dma_attr_addr_hi to dadk_max_phys_addr and dma_attr_sgllen 86 * to dadk_sgl_size during _init(). 87 */ 88 #if defined(__sparc) 89 static ddi_dma_attr_t dadk_alloc_attr = { 90 DMA_ATTR_V0, /* version number */ 91 0x0, /* lowest usable address */ 92 0xFFFFFFFFull, /* high DMA address range */ 93 0xFFFFFFFFull, /* DMA counter register */ 94 1, /* DMA address alignment */ 95 1, /* DMA burstsizes */ 96 1, /* min effective DMA size */ 97 0xFFFFFFFFull, /* max DMA xfer size */ 98 0xFFFFFFFFull, /* segment boundary */ 99 1, /* s/g list length */ 100 512, /* granularity of device */ 101 0, /* DMA transfer flags */ 102 }; 103 #elif defined(__x86) 104 static ddi_dma_attr_t dadk_alloc_attr = { 105 DMA_ATTR_V0, /* version number */ 106 0x0, /* lowest usable address */ 107 0x0, /* high DMA address range [set in _init()] */ 108 0xFFFFull, /* DMA counter register */ 109 512, /* DMA address alignment */ 110 1, /* DMA burstsizes */ 111 1, /* min effective DMA size */ 112 0xFFFFFFFFull, /* max DMA xfer size */ 113 0xFFFFFFFFull, /* segment boundary */ 114 0, /* s/g list length [set in _init()] */ 115 512, /* granularity of device */ 116 0, /* DMA transfer flags */ 117 }; 118 119 uint64_t dadk_max_phys_addr = 0xFFFFFFFFull; 120 int dadk_sgl_size = 0xFF; 121 #endif 122 123 static int dadk_rmb_ioctl(struct dadk *dadkp, int cmd, intptr_t arg, int flags, 124 int silent); 125 static void dadk_rmb_iodone(struct buf *bp); 126 127 static int dadk_dk_buf_setup(struct dadk *dadkp, opaque_t *cmdp, 128 dev_t dev, enum uio_seg dataspace, int rw); 129 static void dadk_dk(struct dadk *dadkp, struct dadkio_rwcmd *scmdp, 130 struct buf *bp); 131 static void dadkmin(struct buf *bp); 132 static int dadk_dk_strategy(struct buf *bp); 133 static void dadk_recorderr(struct cmpkt *pktp, struct dadkio_rwcmd *rwcmdp); 134 135 struct tgdk_objops dadk_ops = { 136 dadk_init, 137 dadk_free, 138 dadk_probe, 139 dadk_attach, 140 dadk_open, 141 dadk_close, 142 dadk_ioctl, 143 dadk_strategy, 144 dadk_setgeom, 145 dadk_getgeom, 146 dadk_iob_alloc, 147 dadk_iob_free, 148 dadk_iob_htoc, 149 dadk_iob_xfer, 150 dadk_dump, 151 dadk_getphygeom, 152 dadk_set_bbhobj, 153 dadk_check_media, 154 dadk_inquiry, 155 dadk_cleanup, 156 0 157 }; 158 159 /* 160 * Local static data 161 */ 162 163 #ifdef DADK_DEBUG 164 #define DENT 0x0001 165 #define DERR 0x0002 166 #define DIO 0x0004 167 #define DGEOM 0x0010 168 #define DSTATE 0x0020 169 static int dadk_debug = DGEOM; 170 171 #endif /* DADK_DEBUG */ 172 173 static int dadk_check_media_time = 3000000; /* 3 Second State Check */ 174 static int dadk_dk_maxphys = 0x80000; 175 176 static char *dadk_cmds[] = { 177 "\000Unknown", /* unknown */ 178 "\001read sector", /* DCMD_READ 1 */ 179 "\002write sector", /* DCMD_WRITE 2 */ 180 "\003format track", /* DCMD_FMTTRK 3 */ 181 "\004format whole drive", /* DCMD_FMTDRV 4 */ 182 "\005recalibrate", /* DCMD_RECAL 5 */ 183 "\006seek sector", /* DCMD_SEEK 6 */ 184 "\007read verify", /* DCMD_RDVER 7 */ 185 "\010read defect list", /* DCMD_GETDEF 8 */ 186 "\011lock door", /* DCMD_LOCK 9 */ 187 "\012unlock door", /* DCMD_UNLOCK 10 */ 188 "\013start motor", /* DCMD_START_MOTOR 11 */ 189 "\014stop motor", /* DCMD_STOP_MOTOR 12 */ 190 "\015eject", /* DCMD_EJECT 13 */ 191 "\016update geometry", /* DCMD_UPDATE_GEOM 14 */ 192 "\017get state", /* DCMD_GET_STATE 15 */ 193 "\020cdrom pause", /* DCMD_PAUSE 16 */ 194 "\021cdrom resume", /* DCMD_RESUME 17 */ 195 "\022cdrom play track index", /* DCMD_PLAYTRKIND 18 */ 196 "\023cdrom play msf", /* DCMD_PLAYMSF 19 */ 197 "\024cdrom sub channel", /* DCMD_SUBCHNL 20 */ 198 "\025cdrom read mode 1", /* DCMD_READMODE1 21 */ 199 "\026cdrom read toc header", /* DCMD_READTOCHDR 22 */ 200 "\027cdrom read toc entry", /* DCMD_READTOCENT 23 */ 201 "\030cdrom read offset", /* DCMD_READOFFSET 24 */ 202 "\031cdrom read mode 2", /* DCMD_READMODE2 25 */ 203 "\032cdrom volume control", /* DCMD_VOLCTRL 26 */ 204 "\033flush cache", /* DCMD_FLUSH_CACHE 27 */ 205 NULL 206 }; 207 208 static char *dadk_sense[] = { 209 "\000Success", /* DERR_SUCCESS */ 210 "\001address mark not found", /* DERR_AMNF */ 211 "\002track 0 not found", /* DERR_TKONF */ 212 "\003aborted command", /* DERR_ABORT */ 213 "\004write fault", /* DERR_DWF */ 214 "\005ID not found", /* DERR_IDNF */ 215 "\006drive busy", /* DERR_BUSY */ 216 "\007uncorrectable data error", /* DERR_UNC */ 217 "\010bad block detected", /* DERR_BBK */ 218 "\011invalid command", /* DERR_INVCDB */ 219 "\012device hard error", /* DERR_HARD */ 220 "\013illegal length indicated", /* DERR_ILI */ 221 "\014end of media", /* DERR_EOM */ 222 "\015media change requested", /* DERR_MCR */ 223 "\016recovered from error", /* DERR_RECOVER */ 224 "\017device not ready", /* DERR_NOTREADY */ 225 "\020medium error", /* DERR_MEDIUM */ 226 "\021hardware error", /* DERR_HW */ 227 "\022illegal request", /* DERR_ILL */ 228 "\023unit attention", /* DERR_UNIT_ATTN */ 229 "\024data protection", /* DERR_DATA_PROT */ 230 "\025miscompare", /* DERR_MISCOMPARE */ 231 "\026ICRC error during UDMA", /* DERR_ICRC */ 232 "\027reserved", /* DERR_RESV */ 233 NULL 234 }; 235 236 static char *dadk_name = "Disk"; 237 238 /* 239 * This is the loadable module wrapper 240 */ 241 #include <sys/modctl.h> 242 243 extern struct mod_ops mod_miscops; 244 245 static struct modlmisc modlmisc = { 246 &mod_miscops, /* Type of module */ 247 "Direct Attached Disk" 248 }; 249 250 static struct modlinkage modlinkage = { 251 MODREV_1, (void *)&modlmisc, NULL 252 }; 253 254 int 255 _init(void) 256 { 257 #ifdef DADK_DEBUG 258 if (dadk_debug & DENT) 259 PRF("dadk_init: call\n"); 260 #endif 261 262 #if defined(__x86) 263 /* set the max physical address for iob allocs on x86 */ 264 dadk_alloc_attr.dma_attr_addr_hi = dadk_max_phys_addr; 265 266 /* 267 * set the sgllen for iob allocs on x86. If this is set less than 268 * the number of pages the buffer will take (taking into account 269 * alignment), it would force the allocator to try and allocate 270 * contiguous pages. 271 */ 272 dadk_alloc_attr.dma_attr_sgllen = dadk_sgl_size; 273 #endif 274 275 return (mod_install(&modlinkage)); 276 } 277 278 int 279 _fini(void) 280 { 281 #ifdef DADK_DEBUG 282 if (dadk_debug & DENT) 283 PRF("dadk_fini: call\n"); 284 #endif 285 286 return (mod_remove(&modlinkage)); 287 } 288 289 int 290 _info(struct modinfo *modinfop) 291 { 292 return (mod_info(&modlinkage, modinfop)); 293 } 294 295 struct tgdk_obj * 296 dadk_create() 297 { 298 struct tgdk_obj *dkobjp; 299 struct dadk *dadkp; 300 301 dkobjp = kmem_zalloc((sizeof (*dkobjp) + sizeof (*dadkp)), KM_NOSLEEP); 302 if (!dkobjp) 303 return (NULL); 304 dadkp = (struct dadk *)(dkobjp+1); 305 306 dkobjp->tg_ops = (struct tgdk_objops *)&dadk_ops; 307 dkobjp->tg_data = (opaque_t)dadkp; 308 dkobjp->tg_ext = &(dkobjp->tg_extblk); 309 dadkp->dad_extp = &(dkobjp->tg_extblk); 310 311 #ifdef DADK_DEBUG 312 if (dadk_debug & DENT) 313 PRF("dadk_create: tgdkobjp= 0x%x dadkp= 0x%x\n", dkobjp, dadkp); 314 #endif 315 return (dkobjp); 316 } 317 318 int 319 dadk_init(opaque_t objp, opaque_t devp, opaque_t flcobjp, opaque_t queobjp, 320 opaque_t bbhobjp, void *lkarg) 321 { 322 struct dadk *dadkp = (struct dadk *)objp; 323 struct scsi_device *sdevp = (struct scsi_device *)devp; 324 325 dadkp->dad_sd = devp; 326 dadkp->dad_ctlobjp = (opaque_t)sdevp->sd_address.a_hba_tran; 327 sdevp->sd_private = (caddr_t)dadkp; 328 329 /* initialize the communication object */ 330 dadkp->dad_com.com_data = (opaque_t)dadkp; 331 dadkp->dad_com.com_ops = &dadk_com_ops; 332 333 dadkp->dad_bbhobjp = bbhobjp; 334 BBH_INIT(bbhobjp); 335 336 dadkp->dad_flcobjp = flcobjp; 337 mutex_init(&dadkp->dad_cmd_mutex, NULL, MUTEX_DRIVER, NULL); 338 dadkp->dad_cmd_count = 0; 339 return (FLC_INIT(flcobjp, &(dadkp->dad_com), queobjp, lkarg)); 340 } 341 342 int 343 dadk_free(struct tgdk_obj *dkobjp) 344 { 345 TGDK_CLEANUP(dkobjp); 346 kmem_free(dkobjp, (sizeof (*dkobjp) + sizeof (struct dadk))); 347 348 return (DDI_SUCCESS); 349 } 350 351 void 352 dadk_cleanup(struct tgdk_obj *dkobjp) 353 { 354 struct dadk *dadkp; 355 356 dadkp = (struct dadk *)(dkobjp->tg_data); 357 if (dadkp->dad_sd) 358 dadkp->dad_sd->sd_private = NULL; 359 if (dadkp->dad_bbhobjp) { 360 BBH_FREE(dadkp->dad_bbhobjp); 361 dadkp->dad_bbhobjp = NULL; 362 } 363 if (dadkp->dad_flcobjp) { 364 FLC_FREE(dadkp->dad_flcobjp); 365 dadkp->dad_flcobjp = NULL; 366 } 367 mutex_destroy(&dadkp->dad_cmd_mutex); 368 } 369 370 /* ARGSUSED */ 371 int 372 dadk_probe(opaque_t objp, int kmsflg) 373 { 374 struct dadk *dadkp = (struct dadk *)objp; 375 struct scsi_device *devp; 376 char name[80]; 377 378 devp = dadkp->dad_sd; 379 if (!devp->sd_inq || (devp->sd_inq->inq_dtype == DTYPE_NOTPRESENT) || 380 (devp->sd_inq->inq_dtype == DTYPE_UNKNOWN)) { 381 return (DDI_PROBE_FAILURE); 382 } 383 384 switch (devp->sd_inq->inq_dtype) { 385 case DTYPE_DIRECT: 386 dadkp->dad_ctype = DKC_DIRECT; 387 dadkp->dad_extp->tg_nodetype = DDI_NT_BLOCK; 388 dadkp->dad_extp->tg_ctype = DKC_DIRECT; 389 break; 390 case DTYPE_RODIRECT: /* eg cdrom */ 391 dadkp->dad_ctype = DKC_CDROM; 392 dadkp->dad_extp->tg_rdonly = 1; 393 dadkp->dad_rdonly = 1; 394 dadkp->dad_cdrom = 1; 395 dadkp->dad_extp->tg_nodetype = DDI_NT_CD; 396 dadkp->dad_extp->tg_ctype = DKC_CDROM; 397 break; 398 case DTYPE_WORM: 399 case DTYPE_OPTICAL: 400 default: 401 return (DDI_PROBE_FAILURE); 402 } 403 404 dadkp->dad_extp->tg_rmb = dadkp->dad_rmb = devp->sd_inq->inq_rmb; 405 406 dadkp->dad_secshf = SCTRSHFT; 407 dadkp->dad_blkshf = 0; 408 409 /* display the device name */ 410 (void) strcpy(name, "Vendor '"); 411 gda_inqfill((caddr_t)devp->sd_inq->inq_vid, 8, &name[strlen(name)]); 412 (void) strcat(name, "' Product '"); 413 gda_inqfill((caddr_t)devp->sd_inq->inq_pid, 16, &name[strlen(name)]); 414 (void) strcat(name, "'"); 415 gda_log(devp->sd_dev, dadk_name, CE_NOTE, "!<%s>\n", name); 416 417 return (DDI_PROBE_SUCCESS); 418 } 419 420 421 /* ARGSUSED */ 422 int 423 dadk_attach(opaque_t objp) 424 { 425 return (DDI_SUCCESS); 426 } 427 428 int 429 dadk_set_bbhobj(opaque_t objp, opaque_t bbhobjp) 430 { 431 struct dadk *dadkp = (struct dadk *)objp; 432 /* free the old bbh object */ 433 if (dadkp->dad_bbhobjp) 434 BBH_FREE(dadkp->dad_bbhobjp); 435 436 /* initialize the new bbh object */ 437 dadkp->dad_bbhobjp = bbhobjp; 438 BBH_INIT(bbhobjp); 439 440 return (DDI_SUCCESS); 441 } 442 443 /* ARGSUSED */ 444 int 445 dadk_open(opaque_t objp, int flag) 446 { 447 struct dadk *dadkp = (struct dadk *)objp; 448 int error; 449 int wce; 450 451 if (!dadkp->dad_rmb) { 452 if (dadkp->dad_phyg.g_cap) { 453 FLC_START_KSTAT(dadkp->dad_flcobjp, "disk", 454 ddi_get_instance(CTL_DIP_DEV(dadkp->dad_ctlobjp))); 455 return (DDI_SUCCESS); 456 } 457 } else { 458 mutex_enter(&dadkp->dad_mutex); 459 dadkp->dad_iostate = DKIO_NONE; 460 cv_broadcast(&dadkp->dad_state_cv); 461 mutex_exit(&dadkp->dad_mutex); 462 463 if (dadk_rmb_ioctl(dadkp, DCMD_START_MOTOR, 0, 0, 464 DADK_SILENT) || 465 dadk_rmb_ioctl(dadkp, DCMD_LOCK, 0, 0, DADK_SILENT) || 466 dadk_rmb_ioctl(dadkp, DCMD_UPDATE_GEOM, 0, 0, 467 DADK_SILENT)) { 468 return (DDI_FAILURE); 469 } 470 471 mutex_enter(&dadkp->dad_mutex); 472 dadkp->dad_iostate = DKIO_INSERTED; 473 cv_broadcast(&dadkp->dad_state_cv); 474 mutex_exit(&dadkp->dad_mutex); 475 } 476 477 /* 478 * get write cache enable state 479 * If there is an error, must assume that write cache 480 * is enabled. 481 * NOTE: Since there is currently no Solaris mechanism to 482 * change the state of the Write Cache Enable feature, 483 * this code just checks the value of the WCE bit 484 * obtained at device init time. If a mechanism 485 * is added to the driver to change WCE, dad_wce 486 * must be updated appropriately. 487 */ 488 error = dadk_ctl_ioctl(dadkp, DIOCTL_GETWCE, 489 (uintptr_t)&wce, FKIOCTL | FNATIVE); 490 mutex_enter(&dadkp->dad_mutex); 491 dadkp->dad_wce = (error != 0) || (wce != 0); 492 mutex_exit(&dadkp->dad_mutex); 493 494 /* logical disk geometry */ 495 (void) dadk_ctl_ioctl(dadkp, DIOCTL_GETGEOM, 496 (uintptr_t)&dadkp->dad_logg, FKIOCTL | FNATIVE); 497 if (dadkp->dad_logg.g_cap == 0) 498 return (DDI_FAILURE); 499 500 /* get physical disk geometry */ 501 (void) dadk_ctl_ioctl(dadkp, DIOCTL_GETPHYGEOM, 502 (uintptr_t)&dadkp->dad_phyg, FKIOCTL | FNATIVE); 503 if (dadkp->dad_phyg.g_cap == 0) 504 return (DDI_FAILURE); 505 506 dadk_setcap(dadkp); 507 508 dadk_create_errstats(dadkp, 509 ddi_get_instance(CTL_DIP_DEV(dadkp->dad_ctlobjp))); 510 511 /* start profiling */ 512 FLC_START_KSTAT(dadkp->dad_flcobjp, "disk", 513 ddi_get_instance(CTL_DIP_DEV(dadkp->dad_ctlobjp))); 514 515 return (DDI_SUCCESS); 516 } 517 518 static void 519 dadk_setcap(struct dadk *dadkp) 520 { 521 int totsize; 522 int i; 523 524 totsize = dadkp->dad_phyg.g_secsiz; 525 526 if (totsize == 0) { 527 if (dadkp->dad_cdrom) { 528 totsize = 2048; 529 } else { 530 totsize = NBPSCTR; 531 } 532 } else { 533 /* Round down sector size to multiple of 512B */ 534 totsize &= ~(NBPSCTR-1); 535 } 536 dadkp->dad_phyg.g_secsiz = totsize; 537 538 /* set sec,block shift factor - (512->0, 1024->1, 2048->2, etc.) */ 539 totsize >>= SCTRSHFT; 540 for (i = 0; totsize != 1; i++, totsize >>= 1) 541 ; 542 dadkp->dad_blkshf = i; 543 dadkp->dad_secshf = i + SCTRSHFT; 544 } 545 546 547 static void 548 dadk_create_errstats(struct dadk *dadkp, int instance) 549 { 550 dadk_errstats_t *dep; 551 char kstatname[KSTAT_STRLEN]; 552 dadk_ioc_string_t dadk_ioc_string; 553 554 if (dadkp->dad_errstats) 555 return; 556 557 (void) sprintf(kstatname, "cmdk%d,error", instance); 558 dadkp->dad_errstats = kstat_create("cmdkerror", instance, 559 kstatname, "device_error", KSTAT_TYPE_NAMED, 560 sizeof (dadk_errstats_t) / sizeof (kstat_named_t), 561 KSTAT_FLAG_PERSISTENT); 562 563 if (!dadkp->dad_errstats) 564 return; 565 566 dep = (dadk_errstats_t *)dadkp->dad_errstats->ks_data; 567 568 kstat_named_init(&dep->dadk_softerrs, 569 "Soft Errors", KSTAT_DATA_UINT32); 570 kstat_named_init(&dep->dadk_harderrs, 571 "Hard Errors", KSTAT_DATA_UINT32); 572 kstat_named_init(&dep->dadk_transerrs, 573 "Transport Errors", KSTAT_DATA_UINT32); 574 kstat_named_init(&dep->dadk_model, 575 "Model", KSTAT_DATA_CHAR); 576 kstat_named_init(&dep->dadk_revision, 577 "Revision", KSTAT_DATA_CHAR); 578 kstat_named_init(&dep->dadk_serial, 579 "Serial No", KSTAT_DATA_CHAR); 580 kstat_named_init(&dep->dadk_capacity, 581 "Size", KSTAT_DATA_ULONGLONG); 582 kstat_named_init(&dep->dadk_rq_media_err, 583 "Media Error", KSTAT_DATA_UINT32); 584 kstat_named_init(&dep->dadk_rq_ntrdy_err, 585 "Device Not Ready", KSTAT_DATA_UINT32); 586 kstat_named_init(&dep->dadk_rq_nodev_err, 587 "No Device", KSTAT_DATA_UINT32); 588 kstat_named_init(&dep->dadk_rq_recov_err, 589 "Recoverable", KSTAT_DATA_UINT32); 590 kstat_named_init(&dep->dadk_rq_illrq_err, 591 "Illegal Request", KSTAT_DATA_UINT32); 592 593 dadkp->dad_errstats->ks_private = dep; 594 dadkp->dad_errstats->ks_update = nulldev; 595 kstat_install(dadkp->dad_errstats); 596 597 /* get model */ 598 dep->dadk_model.value.c[0] = 0; 599 dadk_ioc_string.is_buf = &dep->dadk_model.value.c[0]; 600 dadk_ioc_string.is_size = sizeof (dep->dadk_model.value.c); 601 (void) dadk_ctl_ioctl(dadkp, DIOCTL_GETMODEL, 602 (uintptr_t)&dadk_ioc_string, FKIOCTL | FNATIVE); 603 604 /* get serial */ 605 dep->dadk_serial.value.c[0] = 0; 606 dadk_ioc_string.is_buf = &dep->dadk_serial.value.c[0]; 607 dadk_ioc_string.is_size = sizeof (dep->dadk_serial.value.c); 608 (void) dadk_ctl_ioctl(dadkp, DIOCTL_GETSERIAL, 609 (uintptr_t)&dadk_ioc_string, FKIOCTL | FNATIVE); 610 611 /* Get revision */ 612 dep->dadk_revision.value.c[0] = 0; 613 614 /* Get capacity */ 615 616 dep->dadk_capacity.value.ui64 = 617 (uint64_t)dadkp->dad_logg.g_cap * 618 (uint64_t)dadkp->dad_logg.g_secsiz; 619 } 620 621 622 int 623 dadk_close(opaque_t objp) 624 { 625 struct dadk *dadkp = (struct dadk *)objp; 626 627 if (dadkp->dad_rmb) { 628 (void) dadk_rmb_ioctl(dadkp, DCMD_STOP_MOTOR, 0, 0, 629 DADK_SILENT); 630 (void) dadk_rmb_ioctl(dadkp, DCMD_UNLOCK, 0, 0, DADK_SILENT); 631 } 632 FLC_STOP_KSTAT(dadkp->dad_flcobjp); 633 634 dadk_destroy_errstats(dadkp); 635 636 return (DDI_SUCCESS); 637 } 638 639 static void 640 dadk_destroy_errstats(struct dadk *dadkp) 641 { 642 if (!dadkp->dad_errstats) 643 return; 644 645 kstat_delete(dadkp->dad_errstats); 646 dadkp->dad_errstats = NULL; 647 } 648 649 650 int 651 dadk_strategy(opaque_t objp, struct buf *bp) 652 { 653 struct dadk *dadkp = (struct dadk *)objp; 654 655 if (dadkp->dad_rdonly && !(bp->b_flags & B_READ)) { 656 bioerror(bp, EROFS); 657 return (DDI_FAILURE); 658 } 659 660 if (bp->b_bcount & (dadkp->DAD_SECSIZ-1)) { 661 bioerror(bp, ENXIO); 662 return (DDI_FAILURE); 663 } 664 665 SET_BP_SEC(bp, (LBLK2SEC(GET_BP_SEC(bp), dadkp->dad_blkshf))); 666 mutex_enter(&dadkp->dad_cmd_mutex); 667 dadkp->dad_cmd_count++; 668 mutex_exit(&dadkp->dad_cmd_mutex); 669 FLC_ENQUE(dadkp->dad_flcobjp, bp); 670 671 return (DDI_SUCCESS); 672 } 673 674 int 675 dadk_dump(opaque_t objp, struct buf *bp) 676 { 677 struct dadk *dadkp = (struct dadk *)objp; 678 struct cmpkt *pktp; 679 680 if (dadkp->dad_rdonly) { 681 bioerror(bp, EROFS); 682 return (DDI_FAILURE); 683 } 684 685 if (bp->b_bcount & (dadkp->DAD_SECSIZ-1)) { 686 bioerror(bp, ENXIO); 687 return (DDI_FAILURE); 688 } 689 690 SET_BP_SEC(bp, (LBLK2SEC(GET_BP_SEC(bp), dadkp->dad_blkshf))); 691 692 pktp = dadk_pktprep(dadkp, NULL, bp, dadk_polldone, NULL, NULL); 693 if (!pktp) { 694 cmn_err(CE_WARN, "no resources for dumping"); 695 bioerror(bp, EIO); 696 return (DDI_FAILURE); 697 } 698 pktp->cp_flags |= CPF_NOINTR; 699 700 (void) dadk_ioprep(dadkp, pktp); 701 dadk_transport(dadkp, bp); 702 pktp->cp_byteleft -= pktp->cp_bytexfer; 703 704 while (geterror(bp) == 0 && pktp->cp_byteleft != 0) { 705 (void) dadk_iosetup(dadkp, pktp); 706 dadk_transport(dadkp, bp); 707 pktp->cp_byteleft -= pktp->cp_bytexfer; 708 } 709 710 if (pktp->cp_private) 711 BBH_FREEHANDLE(dadkp->dad_bbhobjp, pktp->cp_private); 712 gda_free(dadkp->dad_ctlobjp, pktp, NULL); 713 return (DDI_SUCCESS); 714 } 715 716 /* ARGSUSED */ 717 int 718 dadk_ioctl(opaque_t objp, dev_t dev, int cmd, intptr_t arg, int flag, 719 cred_t *cred_p, int *rval_p) 720 { 721 struct dadk *dadkp = (struct dadk *)objp; 722 723 switch (cmd) { 724 case DKIOCGETDEF: 725 { 726 struct buf *bp; 727 int err, head; 728 unsigned char *secbuf; 729 STRUCT_DECL(defect_header, adh); 730 731 STRUCT_INIT(adh, flag & FMODELS); 732 733 /* 734 * copyin header .... 735 * yields head number and buffer address 736 */ 737 if (ddi_copyin((caddr_t)arg, STRUCT_BUF(adh), STRUCT_SIZE(adh), 738 flag)) 739 return (EFAULT); 740 head = STRUCT_FGET(adh, head); 741 if (head < 0 || head >= dadkp->dad_phyg.g_head) 742 return (ENXIO); 743 secbuf = kmem_zalloc(NBPSCTR, KM_SLEEP); 744 745 bp = getrbuf(KM_SLEEP); 746 747 bp->b_edev = dev; 748 bp->b_dev = cmpdev(dev); 749 bp->b_flags = B_BUSY; 750 bp->b_resid = 0; 751 bp->b_bcount = NBPSCTR; 752 bp->b_un.b_addr = (caddr_t)secbuf; 753 bp->b_blkno = head; /* I had to put it somwhere! */ 754 bp->b_forw = (struct buf *)dadkp; 755 bp->b_back = (struct buf *)DCMD_GETDEF; 756 757 mutex_enter(&dadkp->dad_cmd_mutex); 758 dadkp->dad_cmd_count++; 759 mutex_exit(&dadkp->dad_cmd_mutex); 760 FLC_ENQUE(dadkp->dad_flcobjp, bp); 761 err = biowait(bp); 762 if (!err) { 763 if (ddi_copyout((caddr_t)secbuf, 764 STRUCT_FGETP(adh, buffer), NBPSCTR, flag)) 765 err = ENXIO; 766 } 767 kmem_free(secbuf, NBPSCTR); 768 freerbuf(bp); 769 return (err); 770 } 771 case DIOCTL_RWCMD: 772 { 773 struct dadkio_rwcmd *rwcmdp; 774 int status, rw; 775 776 /* 777 * copied in by cmdk and, if necessary, converted to the 778 * correct datamodel 779 */ 780 rwcmdp = (struct dadkio_rwcmd *)(intptr_t)arg; 781 782 /* 783 * handle the complex cases here; we pass these 784 * through to the driver, which will queue them and 785 * handle the requests asynchronously. The simpler 786 * cases ,which can return immediately, fail here, and 787 * the request reverts to the dadk_ioctl routine, while 788 * will reroute them directly to the ata driver. 789 */ 790 switch (rwcmdp->cmd) { 791 case DADKIO_RWCMD_READ : 792 /*FALLTHROUGH*/ 793 case DADKIO_RWCMD_WRITE: 794 rw = ((rwcmdp->cmd == DADKIO_RWCMD_WRITE) ? 795 B_WRITE : B_READ); 796 status = dadk_dk_buf_setup(dadkp, 797 (opaque_t)rwcmdp, dev, ((flag &FKIOCTL) ? 798 UIO_SYSSPACE : UIO_USERSPACE), rw); 799 return (status); 800 default: 801 return (EINVAL); 802 } 803 } 804 case DKIOC_UPDATEFW: 805 806 /* 807 * Require PRIV_ALL privilege to invoke DKIOC_UPDATEFW 808 * to protect the firmware update from malicious use 809 */ 810 if (PRIV_POLICY(cred_p, PRIV_ALL, B_FALSE, EPERM, NULL) != 0) 811 return (EPERM); 812 else 813 return (dadk_ctl_ioctl(dadkp, cmd, arg, flag)); 814 815 case DKIOCFLUSHWRITECACHE: 816 { 817 struct buf *bp; 818 int err = 0; 819 struct dk_callback *dkc = (struct dk_callback *)arg; 820 struct cmpkt *pktp; 821 int is_sync = 1; 822 823 mutex_enter(&dadkp->dad_mutex); 824 if (dadkp->dad_noflush || ! dadkp->dad_wce) { 825 err = dadkp->dad_noflush ? ENOTSUP : 0; 826 mutex_exit(&dadkp->dad_mutex); 827 /* 828 * If a callback was requested: a 829 * callback will always be done if the 830 * caller saw the DKIOCFLUSHWRITECACHE 831 * ioctl return 0, and never done if the 832 * caller saw the ioctl return an error. 833 */ 834 if ((flag & FKIOCTL) && dkc != NULL && 835 dkc->dkc_callback != NULL) { 836 (*dkc->dkc_callback)(dkc->dkc_cookie, 837 err); 838 /* 839 * Did callback and reported error. 840 * Since we did a callback, ioctl 841 * should return 0. 842 */ 843 err = 0; 844 } 845 return (err); 846 } 847 mutex_exit(&dadkp->dad_mutex); 848 849 bp = getrbuf(KM_SLEEP); 850 851 bp->b_edev = dev; 852 bp->b_dev = cmpdev(dev); 853 bp->b_flags = B_BUSY; 854 bp->b_resid = 0; 855 bp->b_bcount = 0; 856 SET_BP_SEC(bp, 0); 857 858 if ((flag & FKIOCTL) && dkc != NULL && 859 dkc->dkc_callback != NULL) { 860 struct dk_callback *dkc2 = 861 (struct dk_callback *)kmem_zalloc( 862 sizeof (struct dk_callback), KM_SLEEP); 863 864 bcopy(dkc, dkc2, sizeof (*dkc2)); 865 bp->b_private = dkc2; 866 bp->b_iodone = dadk_flushdone; 867 is_sync = 0; 868 } 869 870 /* 871 * Setup command pkt 872 * dadk_pktprep() can't fail since DDI_DMA_SLEEP set 873 */ 874 pktp = dadk_pktprep(dadkp, NULL, bp, 875 dadk_iodone, DDI_DMA_SLEEP, NULL); 876 877 pktp->cp_time = DADK_FLUSH_CACHE_TIME; 878 879 *((char *)(pktp->cp_cdbp)) = DCMD_FLUSH_CACHE; 880 pktp->cp_byteleft = 0; 881 pktp->cp_private = NULL; 882 pktp->cp_secleft = 0; 883 pktp->cp_srtsec = -1; 884 pktp->cp_bytexfer = 0; 885 886 CTL_IOSETUP(dadkp->dad_ctlobjp, pktp); 887 888 mutex_enter(&dadkp->dad_cmd_mutex); 889 dadkp->dad_cmd_count++; 890 mutex_exit(&dadkp->dad_cmd_mutex); 891 FLC_ENQUE(dadkp->dad_flcobjp, bp); 892 893 if (is_sync) { 894 err = biowait(bp); 895 freerbuf(bp); 896 } 897 return (err); 898 } 899 default: 900 if (!dadkp->dad_rmb) 901 return (dadk_ctl_ioctl(dadkp, cmd, arg, flag)); 902 } 903 904 switch (cmd) { 905 case CDROMSTOP: 906 return (dadk_rmb_ioctl(dadkp, DCMD_STOP_MOTOR, 0, 907 0, DADK_SILENT)); 908 case CDROMSTART: 909 return (dadk_rmb_ioctl(dadkp, DCMD_START_MOTOR, 0, 910 0, DADK_SILENT)); 911 case DKIOCLOCK: 912 return (dadk_rmb_ioctl(dadkp, DCMD_LOCK, 0, 0, DADK_SILENT)); 913 case DKIOCUNLOCK: 914 return (dadk_rmb_ioctl(dadkp, DCMD_UNLOCK, 0, 0, DADK_SILENT)); 915 case DKIOCEJECT: 916 case CDROMEJECT: 917 { 918 int ret; 919 920 if (ret = dadk_rmb_ioctl(dadkp, DCMD_UNLOCK, 0, 0, 921 DADK_SILENT)) { 922 return (ret); 923 } 924 if (ret = dadk_rmb_ioctl(dadkp, DCMD_EJECT, 0, 0, 925 DADK_SILENT)) { 926 return (ret); 927 } 928 mutex_enter(&dadkp->dad_mutex); 929 dadkp->dad_iostate = DKIO_EJECTED; 930 cv_broadcast(&dadkp->dad_state_cv); 931 mutex_exit(&dadkp->dad_mutex); 932 933 return (0); 934 935 } 936 default: 937 return (ENOTTY); 938 /* 939 * cdrom audio commands 940 */ 941 case CDROMPAUSE: 942 cmd = DCMD_PAUSE; 943 break; 944 case CDROMRESUME: 945 cmd = DCMD_RESUME; 946 break; 947 case CDROMPLAYMSF: 948 cmd = DCMD_PLAYMSF; 949 break; 950 case CDROMPLAYTRKIND: 951 cmd = DCMD_PLAYTRKIND; 952 break; 953 case CDROMREADTOCHDR: 954 cmd = DCMD_READTOCHDR; 955 break; 956 case CDROMREADTOCENTRY: 957 cmd = DCMD_READTOCENT; 958 break; 959 case CDROMVOLCTRL: 960 cmd = DCMD_VOLCTRL; 961 break; 962 case CDROMSUBCHNL: 963 cmd = DCMD_SUBCHNL; 964 break; 965 case CDROMREADMODE2: 966 cmd = DCMD_READMODE2; 967 break; 968 case CDROMREADMODE1: 969 cmd = DCMD_READMODE1; 970 break; 971 case CDROMREADOFFSET: 972 cmd = DCMD_READOFFSET; 973 break; 974 } 975 return (dadk_rmb_ioctl(dadkp, cmd, arg, flag, 0)); 976 } 977 978 int 979 dadk_flushdone(struct buf *bp) 980 { 981 struct dk_callback *dkc = bp->b_private; 982 983 ASSERT(dkc != NULL && dkc->dkc_callback != NULL); 984 985 (*dkc->dkc_callback)(dkc->dkc_cookie, geterror(bp)); 986 987 kmem_free(dkc, sizeof (*dkc)); 988 freerbuf(bp); 989 return (0); 990 } 991 992 int 993 dadk_getphygeom(opaque_t objp, struct tgdk_geom *dkgeom_p) 994 { 995 struct dadk *dadkp = (struct dadk *)objp; 996 997 bcopy((caddr_t)&dadkp->dad_phyg, (caddr_t)dkgeom_p, 998 sizeof (struct tgdk_geom)); 999 return (DDI_SUCCESS); 1000 } 1001 1002 int 1003 dadk_getgeom(opaque_t objp, struct tgdk_geom *dkgeom_p) 1004 { 1005 struct dadk *dadkp = (struct dadk *)objp; 1006 bcopy((caddr_t)&dadkp->dad_logg, (caddr_t)dkgeom_p, 1007 sizeof (struct tgdk_geom)); 1008 return (DDI_SUCCESS); 1009 } 1010 1011 int 1012 dadk_setgeom(opaque_t objp, struct tgdk_geom *dkgeom_p) 1013 { 1014 struct dadk *dadkp = (struct dadk *)objp; 1015 1016 dadkp->dad_logg.g_cyl = dkgeom_p->g_cyl; 1017 dadkp->dad_logg.g_head = dkgeom_p->g_head; 1018 dadkp->dad_logg.g_sec = dkgeom_p->g_sec; 1019 dadkp->dad_logg.g_cap = dkgeom_p->g_cap; 1020 return (DDI_SUCCESS); 1021 } 1022 1023 1024 tgdk_iob_handle 1025 dadk_iob_alloc(opaque_t objp, daddr_t blkno, ssize_t xfer, int kmsflg) 1026 { 1027 struct dadk *dadkp = (struct dadk *)objp; 1028 struct buf *bp; 1029 struct tgdk_iob *iobp; 1030 size_t rlen; 1031 1032 iobp = kmem_zalloc(sizeof (*iobp), kmsflg); 1033 if (iobp == NULL) 1034 return (NULL); 1035 if ((bp = getrbuf(kmsflg)) == NULL) { 1036 kmem_free(iobp, sizeof (*iobp)); 1037 return (NULL); 1038 } 1039 1040 iobp->b_psec = LBLK2SEC(blkno, dadkp->dad_blkshf); 1041 iobp->b_pbyteoff = (blkno & ((1<<dadkp->dad_blkshf) - 1)) << SCTRSHFT; 1042 iobp->b_pbytecnt = ((iobp->b_pbyteoff + xfer + dadkp->DAD_SECSIZ - 1) 1043 >> dadkp->dad_secshf) << dadkp->dad_secshf; 1044 1045 bp->b_un.b_addr = 0; 1046 /* 1047 * use i_ddi_mem_alloc() for now until we have an interface to allocate 1048 * memory for DMA which doesn't require a DMA handle. 1049 */ 1050 if (i_ddi_mem_alloc((dadkp->dad_sd)->sd_dev, &dadk_alloc_attr, 1051 (size_t)iobp->b_pbytecnt, ((kmsflg == KM_SLEEP) ? 1 : 0), 0, NULL, 1052 &bp->b_un.b_addr, &rlen, NULL) != DDI_SUCCESS) { 1053 freerbuf(bp); 1054 kmem_free(iobp, sizeof (*iobp)); 1055 return (NULL); 1056 } 1057 iobp->b_flag |= IOB_BPALLOC | IOB_BPBUFALLOC; 1058 iobp->b_bp = bp; 1059 iobp->b_lblk = blkno; 1060 iobp->b_xfer = xfer; 1061 iobp->b_lblk = blkno; 1062 iobp->b_xfer = xfer; 1063 return (iobp); 1064 } 1065 1066 /* ARGSUSED */ 1067 int 1068 dadk_iob_free(opaque_t objp, struct tgdk_iob *iobp) 1069 { 1070 struct buf *bp; 1071 1072 if (iobp) { 1073 if (iobp->b_bp && (iobp->b_flag & IOB_BPALLOC)) { 1074 bp = iobp->b_bp; 1075 if (bp->b_un.b_addr && (iobp->b_flag & IOB_BPBUFALLOC)) 1076 i_ddi_mem_free((caddr_t)bp->b_un.b_addr, NULL); 1077 freerbuf(bp); 1078 } 1079 kmem_free(iobp, sizeof (*iobp)); 1080 } 1081 return (DDI_SUCCESS); 1082 } 1083 1084 /* ARGSUSED */ 1085 caddr_t 1086 dadk_iob_htoc(opaque_t objp, struct tgdk_iob *iobp) 1087 { 1088 return (iobp->b_bp->b_un.b_addr+iobp->b_pbyteoff); 1089 } 1090 1091 1092 caddr_t 1093 dadk_iob_xfer(opaque_t objp, struct tgdk_iob *iobp, int rw) 1094 { 1095 struct dadk *dadkp = (struct dadk *)objp; 1096 struct buf *bp; 1097 int err; 1098 1099 bp = iobp->b_bp; 1100 if (dadkp->dad_rdonly && !(rw & B_READ)) { 1101 bioerror(bp, EROFS); 1102 return (NULL); 1103 } 1104 1105 bp->b_flags |= (B_BUSY | rw); 1106 bp->b_bcount = iobp->b_pbytecnt; 1107 SET_BP_SEC(bp, iobp->b_psec); 1108 bp->av_back = (struct buf *)0; 1109 bp->b_resid = 0; 1110 1111 /* call flow control */ 1112 mutex_enter(&dadkp->dad_cmd_mutex); 1113 dadkp->dad_cmd_count++; 1114 mutex_exit(&dadkp->dad_cmd_mutex); 1115 FLC_ENQUE(dadkp->dad_flcobjp, bp); 1116 err = biowait(bp); 1117 1118 bp->b_bcount = iobp->b_xfer; 1119 bp->b_flags &= ~(B_DONE|B_BUSY); 1120 1121 if (err) 1122 return (NULL); 1123 1124 return (bp->b_un.b_addr+iobp->b_pbyteoff); 1125 } 1126 1127 static void 1128 dadk_transport(opaque_t com_data, struct buf *bp) 1129 { 1130 struct dadk *dadkp = (struct dadk *)com_data; 1131 1132 if (CTL_TRANSPORT(dadkp->dad_ctlobjp, GDA_BP_PKT(bp)) == 1133 CTL_SEND_SUCCESS) 1134 return; 1135 dadk_restart((void*)GDA_BP_PKT(bp)); 1136 } 1137 1138 static int 1139 dadk_pkt(opaque_t com_data, struct buf *bp, int (*func)(caddr_t), caddr_t arg) 1140 { 1141 struct cmpkt *pktp; 1142 struct dadk *dadkp = (struct dadk *)com_data; 1143 1144 if (GDA_BP_PKT(bp)) 1145 return (DDI_SUCCESS); 1146 1147 pktp = dadk_pktprep(dadkp, NULL, bp, dadk_iodone, func, arg); 1148 if (!pktp) 1149 return (DDI_FAILURE); 1150 1151 return (dadk_ioprep(dadkp, pktp)); 1152 } 1153 1154 /* 1155 * Read, Write preparation 1156 */ 1157 static int 1158 dadk_ioprep(struct dadk *dadkp, struct cmpkt *pktp) 1159 { 1160 struct buf *bp; 1161 1162 bp = pktp->cp_bp; 1163 if (bp->b_forw == (struct buf *)dadkp) 1164 *((char *)(pktp->cp_cdbp)) = (char)(intptr_t)bp->b_back; 1165 1166 else if (bp->b_flags & B_READ) 1167 *((char *)(pktp->cp_cdbp)) = DCMD_READ; 1168 else 1169 *((char *)(pktp->cp_cdbp)) = DCMD_WRITE; 1170 pktp->cp_byteleft = bp->b_bcount; 1171 1172 /* setup the bad block list handle */ 1173 pktp->cp_private = BBH_GETHANDLE(dadkp->dad_bbhobjp, bp); 1174 return (dadk_iosetup(dadkp, pktp)); 1175 } 1176 1177 static int 1178 dadk_iosetup(struct dadk *dadkp, struct cmpkt *pktp) 1179 { 1180 struct buf *bp; 1181 bbh_cookie_t bbhckp; 1182 int seccnt; 1183 1184 seccnt = pktp->cp_bytexfer >> dadkp->dad_secshf; 1185 pktp->cp_secleft -= seccnt; 1186 1187 if (pktp->cp_secleft) { 1188 pktp->cp_srtsec += seccnt; 1189 } else { 1190 /* get the first cookie from the bad block list */ 1191 if (!pktp->cp_private) { 1192 bp = pktp->cp_bp; 1193 pktp->cp_srtsec = GET_BP_SEC(bp); 1194 pktp->cp_secleft = (bp->b_bcount >> dadkp->dad_secshf); 1195 } else { 1196 bbhckp = BBH_HTOC(dadkp->dad_bbhobjp, 1197 pktp->cp_private); 1198 pktp->cp_srtsec = BBH_GETCK_SECTOR(dadkp->dad_bbhobjp, 1199 bbhckp); 1200 pktp->cp_secleft = BBH_GETCK_SECLEN(dadkp->dad_bbhobjp, 1201 bbhckp); 1202 } 1203 } 1204 1205 pktp->cp_bytexfer = pktp->cp_secleft << dadkp->dad_secshf; 1206 1207 if (CTL_IOSETUP(dadkp->dad_ctlobjp, pktp)) { 1208 return (DDI_SUCCESS); 1209 } else { 1210 return (DDI_FAILURE); 1211 } 1212 1213 1214 1215 1216 } 1217 1218 static struct cmpkt * 1219 dadk_pktprep(struct dadk *dadkp, struct cmpkt *in_pktp, struct buf *bp, 1220 void (*cb_func)(struct buf *), int (*func)(caddr_t), caddr_t arg) 1221 { 1222 struct cmpkt *pktp; 1223 1224 pktp = gda_pktprep(dadkp->dad_ctlobjp, in_pktp, (opaque_t)bp, func, 1225 arg); 1226 1227 if (pktp) { 1228 pktp->cp_callback = dadk_pktcb; 1229 pktp->cp_time = DADK_IO_TIME; 1230 pktp->cp_flags = 0; 1231 pktp->cp_iodone = cb_func; 1232 pktp->cp_dev_private = (opaque_t)dadkp; 1233 1234 } 1235 1236 return (pktp); 1237 } 1238 1239 1240 static void 1241 dadk_restart(void *vpktp) 1242 { 1243 struct cmpkt *pktp = (struct cmpkt *)vpktp; 1244 1245 if (dadk_ioretry(pktp, QUE_COMMAND) == JUST_RETURN) 1246 return; 1247 pktp->cp_iodone(pktp->cp_bp); 1248 } 1249 1250 static int 1251 dadk_ioretry(struct cmpkt *pktp, int action) 1252 { 1253 struct buf *bp; 1254 struct dadk *dadkp = PKT2DADK(pktp); 1255 1256 switch (action) { 1257 case QUE_COMMAND: 1258 if (pktp->cp_retry++ < DADK_RETRY_COUNT) { 1259 CTL_IOSETUP(dadkp->dad_ctlobjp, pktp); 1260 if (CTL_TRANSPORT(dadkp->dad_ctlobjp, pktp) == 1261 CTL_SEND_SUCCESS) { 1262 return (JUST_RETURN); 1263 } 1264 gda_log(dadkp->dad_sd->sd_dev, dadk_name, 1265 CE_WARN, "transport of command fails\n"); 1266 } else 1267 gda_log(dadkp->dad_sd->sd_dev, 1268 dadk_name, CE_WARN, 1269 "exceeds maximum number of retries\n"); 1270 bioerror(pktp->cp_bp, ENXIO); 1271 /*FALLTHROUGH*/ 1272 case COMMAND_DONE_ERROR: 1273 bp = pktp->cp_bp; 1274 bp->b_resid += pktp->cp_byteleft - pktp->cp_bytexfer + 1275 pktp->cp_resid; 1276 if (geterror(bp) == 0) { 1277 if ((*((char *)(pktp->cp_cdbp)) == DCMD_FLUSH_CACHE) && 1278 (pktp->cp_dev_private == (opaque_t)dadkp) && 1279 ((int)(*(char *)pktp->cp_scbp) == DERR_ABORT)) { 1280 /* 1281 * Flag "unimplemented" responses for 1282 * DCMD_FLUSH_CACHE as ENOTSUP 1283 */ 1284 bioerror(bp, ENOTSUP); 1285 mutex_enter(&dadkp->dad_mutex); 1286 dadkp->dad_noflush = 1; 1287 mutex_exit(&dadkp->dad_mutex); 1288 } else { 1289 bioerror(bp, EIO); 1290 } 1291 } 1292 /*FALLTHROUGH*/ 1293 case COMMAND_DONE: 1294 default: 1295 return (COMMAND_DONE); 1296 } 1297 } 1298 1299 1300 static void 1301 dadk_pktcb(struct cmpkt *pktp) 1302 { 1303 int action; 1304 struct dadkio_rwcmd *rwcmdp; 1305 1306 rwcmdp = (struct dadkio_rwcmd *)pktp->cp_passthru; /* ioctl packet */ 1307 1308 if (pktp->cp_reason == CPS_SUCCESS) { 1309 if (rwcmdp && (rwcmdp != (opaque_t)DADK_SILENT)) 1310 rwcmdp->status.status = DADKIO_STAT_NO_ERROR; 1311 pktp->cp_iodone(pktp->cp_bp); 1312 return; 1313 } 1314 1315 if (rwcmdp && (rwcmdp != (opaque_t)DADK_SILENT)) { 1316 if (pktp->cp_reason == CPS_CHKERR) 1317 dadk_recorderr(pktp, rwcmdp); 1318 dadk_iodone(pktp->cp_bp); 1319 return; 1320 } 1321 1322 if (pktp->cp_reason == CPS_CHKERR) 1323 action = dadk_chkerr(pktp); 1324 else 1325 action = COMMAND_DONE_ERROR; 1326 1327 if (action == JUST_RETURN) 1328 return; 1329 1330 /* 1331 * If we are panicking don't retry the command 1332 * just fail it so we can go down completing all 1333 * of the buffers. 1334 */ 1335 if (ddi_in_panic() && action == QUE_COMMAND) 1336 action = COMMAND_DONE_ERROR; 1337 1338 if (action != COMMAND_DONE) { 1339 if ((dadk_ioretry(pktp, action)) == JUST_RETURN) 1340 return; 1341 } 1342 pktp->cp_iodone(pktp->cp_bp); 1343 } 1344 1345 1346 1347 static struct dadkio_derr dadk_errtab[] = { 1348 {COMMAND_DONE, GDA_INFORMATIONAL}, /* 0 DERR_SUCCESS */ 1349 {QUE_COMMAND, GDA_FATAL}, /* 1 DERR_AMNF */ 1350 {QUE_COMMAND, GDA_FATAL}, /* 2 DERR_TKONF */ 1351 {COMMAND_DONE_ERROR, GDA_INFORMATIONAL}, /* 3 DERR_ABORT */ 1352 {QUE_COMMAND, GDA_RETRYABLE}, /* 4 DERR_DWF */ 1353 {QUE_COMMAND, GDA_FATAL}, /* 5 DERR_IDNF */ 1354 {JUST_RETURN, GDA_INFORMATIONAL}, /* 6 DERR_BUSY */ 1355 {QUE_COMMAND, GDA_FATAL}, /* 7 DERR_UNC */ 1356 {QUE_COMMAND, GDA_RETRYABLE}, /* 8 DERR_BBK */ 1357 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 9 DERR_INVCDB */ 1358 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 10 DERR_HARD */ 1359 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 11 DERR_ILI */ 1360 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 12 DERR_EOM */ 1361 {COMMAND_DONE, GDA_INFORMATIONAL}, /* 13 DERR_MCR */ 1362 {COMMAND_DONE, GDA_INFORMATIONAL}, /* 14 DERR_RECOVER */ 1363 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 15 DERR_NOTREADY */ 1364 {QUE_COMMAND, GDA_RETRYABLE}, /* 16 DERR_MEDIUM */ 1365 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 17 DERR_HW */ 1366 {COMMAND_DONE, GDA_FATAL}, /* 18 DERR_ILL */ 1367 {COMMAND_DONE, GDA_FATAL}, /* 19 DERR_UNIT_ATTN */ 1368 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 20 DERR_DATA_PROT */ 1369 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 21 DERR_MISCOMPARE */ 1370 {QUE_COMMAND, GDA_RETRYABLE}, /* 22 DERR_ICRC */ 1371 {COMMAND_DONE_ERROR, GDA_FATAL}, /* 23 DERR_RESV */ 1372 }; 1373 1374 static int 1375 dadk_chkerr(struct cmpkt *pktp) 1376 { 1377 daddr_t err_blkno; 1378 struct dadk *dadkp = PKT2DADK(pktp); 1379 dadk_errstats_t *dep; 1380 int scb = *(char *)pktp->cp_scbp; 1381 1382 if (scb == DERR_SUCCESS) { 1383 if (pktp->cp_retry != 0 && dadkp->dad_errstats != NULL) { 1384 dep = (dadk_errstats_t *) 1385 dadkp->dad_errstats->ks_data; 1386 dep->dadk_rq_recov_err.value.ui32++; 1387 } 1388 return (COMMAND_DONE); 1389 } 1390 1391 if (pktp->cp_retry) { 1392 err_blkno = pktp->cp_srtsec + ((pktp->cp_bytexfer - 1393 pktp->cp_resid) >> dadkp->dad_secshf); 1394 } else 1395 err_blkno = -1; 1396 1397 if (dadkp->dad_errstats != NULL) { 1398 dep = (dadk_errstats_t *)dadkp->dad_errstats->ks_data; 1399 1400 switch (dadk_errtab[scb].d_severity) { 1401 case GDA_RETRYABLE: 1402 dep->dadk_softerrs.value.ui32++; 1403 break; 1404 1405 case GDA_FATAL: 1406 dep->dadk_harderrs.value.ui32++; 1407 break; 1408 1409 default: 1410 break; 1411 } 1412 1413 switch (scb) { 1414 case DERR_INVCDB: 1415 case DERR_ILI: 1416 case DERR_EOM: 1417 case DERR_HW: 1418 case DERR_ICRC: 1419 dep->dadk_transerrs.value.ui32++; 1420 break; 1421 1422 case DERR_AMNF: 1423 case DERR_TKONF: 1424 case DERR_DWF: 1425 case DERR_BBK: 1426 case DERR_UNC: 1427 case DERR_HARD: 1428 case DERR_MEDIUM: 1429 case DERR_DATA_PROT: 1430 case DERR_MISCOMP: 1431 dep->dadk_rq_media_err.value.ui32++; 1432 break; 1433 1434 case DERR_NOTREADY: 1435 dep->dadk_rq_ntrdy_err.value.ui32++; 1436 break; 1437 1438 case DERR_IDNF: 1439 case DERR_UNIT_ATTN: 1440 dep->dadk_rq_nodev_err.value.ui32++; 1441 break; 1442 1443 case DERR_ILL: 1444 case DERR_RESV: 1445 dep->dadk_rq_illrq_err.value.ui32++; 1446 break; 1447 1448 default: 1449 break; 1450 } 1451 } 1452 1453 /* if attempting to read a sector from a cdrom audio disk */ 1454 if ((dadkp->dad_cdrom) && 1455 (*((char *)(pktp->cp_cdbp)) == DCMD_READ) && 1456 (scb == DERR_ILL)) { 1457 return (COMMAND_DONE); 1458 } 1459 if (pktp->cp_passthru == NULL) { 1460 gda_errmsg(dadkp->dad_sd, pktp, dadk_name, 1461 dadk_errtab[scb].d_severity, pktp->cp_srtsec, 1462 err_blkno, dadk_cmds, dadk_sense); 1463 } 1464 1465 if (scb == DERR_BUSY) { 1466 (void) timeout(dadk_restart, (void *)pktp, DADK_BSY_TIMEOUT); 1467 } 1468 1469 return (dadk_errtab[scb].d_action); 1470 } 1471 1472 static void 1473 dadk_recorderr(struct cmpkt *pktp, struct dadkio_rwcmd *rwcmdp) 1474 { 1475 struct dadk *dadkp; 1476 int scb; 1477 1478 dadkp = PKT2DADK(pktp); 1479 scb = (int)(*(char *)pktp->cp_scbp); 1480 1481 1482 rwcmdp->status.failed_blk = rwcmdp->blkaddr + 1483 ((pktp->cp_bytexfer - pktp->cp_resid) >> dadkp->dad_secshf); 1484 1485 rwcmdp->status.resid = pktp->cp_bp->b_resid + 1486 pktp->cp_byteleft - pktp->cp_bytexfer + pktp->cp_resid; 1487 switch ((int)(* (char *)pktp->cp_scbp)) { 1488 case DERR_AMNF: 1489 case DERR_ABORT: 1490 rwcmdp->status.status = DADKIO_STAT_ILLEGAL_REQUEST; 1491 break; 1492 case DERR_DWF: 1493 case DERR_IDNF: 1494 rwcmdp->status.status = DADKIO_STAT_ILLEGAL_ADDRESS; 1495 break; 1496 case DERR_TKONF: 1497 case DERR_UNC: 1498 case DERR_BBK: 1499 rwcmdp->status.status = DADKIO_STAT_MEDIUM_ERROR; 1500 rwcmdp->status.failed_blk_is_valid = 1; 1501 rwcmdp->status.resid = 0; 1502 break; 1503 case DERR_BUSY: 1504 rwcmdp->status.status = DADKIO_STAT_NOT_READY; 1505 break; 1506 case DERR_INVCDB: 1507 case DERR_HARD: 1508 rwcmdp->status.status = DADKIO_STAT_HARDWARE_ERROR; 1509 break; 1510 case DERR_ICRC: 1511 default: 1512 rwcmdp->status.status = DADKIO_STAT_NOT_SUPPORTED; 1513 } 1514 1515 if (rwcmdp->flags & DADKIO_FLAG_SILENT) 1516 return; 1517 gda_errmsg(dadkp->dad_sd, pktp, dadk_name, dadk_errtab[scb].d_severity, 1518 rwcmdp->blkaddr, rwcmdp->status.failed_blk, 1519 dadk_cmds, dadk_sense); 1520 } 1521 1522 /*ARGSUSED*/ 1523 static void 1524 dadk_polldone(struct buf *bp) 1525 { 1526 struct cmpkt *pktp; 1527 struct dadk *dadkp; 1528 1529 pktp = GDA_BP_PKT(bp); 1530 dadkp = PKT2DADK(pktp); 1531 mutex_enter(&dadkp->dad_cmd_mutex); 1532 dadkp->dad_cmd_count--; 1533 mutex_exit(&dadkp->dad_cmd_mutex); 1534 } 1535 1536 static void 1537 dadk_iodone(struct buf *bp) 1538 { 1539 struct cmpkt *pktp; 1540 struct dadk *dadkp; 1541 1542 pktp = GDA_BP_PKT(bp); 1543 dadkp = PKT2DADK(pktp); 1544 1545 /* check for all iodone */ 1546 pktp->cp_byteleft -= pktp->cp_bytexfer; 1547 if (geterror(bp) == 0 && pktp->cp_byteleft != 0) { 1548 pktp->cp_retry = 0; 1549 (void) dadk_iosetup(dadkp, pktp); 1550 1551 1552 /* transport the next one */ 1553 if (CTL_TRANSPORT(dadkp->dad_ctlobjp, pktp) == CTL_SEND_SUCCESS) 1554 return; 1555 if ((dadk_ioretry(pktp, QUE_COMMAND)) == JUST_RETURN) 1556 return; 1557 } 1558 1559 /* start next one */ 1560 FLC_DEQUE(dadkp->dad_flcobjp, bp); 1561 1562 /* free pkt */ 1563 if (pktp->cp_private) 1564 BBH_FREEHANDLE(dadkp->dad_bbhobjp, pktp->cp_private); 1565 gda_free(dadkp->dad_ctlobjp, pktp, NULL); 1566 mutex_enter(&dadkp->dad_cmd_mutex); 1567 dadkp->dad_cmd_count--; 1568 mutex_exit(&dadkp->dad_cmd_mutex); 1569 biodone(bp); 1570 } 1571 1572 int 1573 dadk_check_media(opaque_t objp, int *state) 1574 { 1575 struct dadk *dadkp = (struct dadk *)objp; 1576 1577 if (!dadkp->dad_rmb) { 1578 return (ENXIO); 1579 } 1580 #ifdef DADK_DEBUG 1581 if (dadk_debug & DSTATE) 1582 PRF("dadk_check_media: user state %x disk state %x\n", 1583 *state, dadkp->dad_iostate); 1584 #endif 1585 /* 1586 * If state already changed just return 1587 */ 1588 if (*state != dadkp->dad_iostate) { 1589 *state = dadkp->dad_iostate; 1590 return (0); 1591 } 1592 1593 /* 1594 * Startup polling on thread state 1595 */ 1596 mutex_enter(&dadkp->dad_mutex); 1597 if (dadkp->dad_thread_cnt == 0) { 1598 /* 1599 * One thread per removable dadk device 1600 */ 1601 (void) thread_create(NULL, 0, dadk_watch_thread, dadkp, 0, &p0, 1602 TS_RUN, v.v_maxsyspri - 2); 1603 } 1604 dadkp->dad_thread_cnt++; 1605 1606 /* 1607 * Wait for state to change 1608 */ 1609 do { 1610 if (cv_wait_sig(&dadkp->dad_state_cv, &dadkp->dad_mutex) == 0) { 1611 dadkp->dad_thread_cnt--; 1612 mutex_exit(&dadkp->dad_mutex); 1613 return (EINTR); 1614 } 1615 } while (*state == dadkp->dad_iostate); 1616 *state = dadkp->dad_iostate; 1617 dadkp->dad_thread_cnt--; 1618 mutex_exit(&dadkp->dad_mutex); 1619 return (0); 1620 } 1621 1622 1623 #define MEDIA_ACCESS_DELAY 2000000 1624 1625 static void 1626 dadk_watch_thread(struct dadk *dadkp) 1627 { 1628 enum dkio_state state; 1629 int interval; 1630 1631 interval = drv_usectohz(dadk_check_media_time); 1632 1633 do { 1634 if (dadk_rmb_ioctl(dadkp, DCMD_GET_STATE, (intptr_t)&state, 0, 1635 DADK_SILENT)) { 1636 /* 1637 * Assume state remained the same 1638 */ 1639 state = dadkp->dad_iostate; 1640 } 1641 1642 /* 1643 * now signal the waiting thread if this is *not* the 1644 * specified state; 1645 * delay the signal if the state is DKIO_INSERTED 1646 * to allow the target to recover 1647 */ 1648 if (state != dadkp->dad_iostate) { 1649 1650 dadkp->dad_iostate = state; 1651 if (state == DKIO_INSERTED) { 1652 /* 1653 * delay the signal to give the drive a chance 1654 * to do what it apparently needs to do 1655 */ 1656 (void) timeout((void(*)(void *))cv_broadcast, 1657 (void *)&dadkp->dad_state_cv, 1658 drv_usectohz((clock_t)MEDIA_ACCESS_DELAY)); 1659 } else { 1660 cv_broadcast(&dadkp->dad_state_cv); 1661 } 1662 } 1663 delay(interval); 1664 } while (dadkp->dad_thread_cnt); 1665 } 1666 1667 int 1668 dadk_inquiry(opaque_t objp, opaque_t *inqpp) 1669 { 1670 struct dadk *dadkp = (struct dadk *)objp; 1671 struct scsi_inquiry **sinqpp = (struct scsi_inquiry **)inqpp; 1672 1673 if (dadkp && dadkp->dad_sd && dadkp->dad_sd->sd_inq) { 1674 *sinqpp = dadkp->dad_sd->sd_inq; 1675 return (DDI_SUCCESS); 1676 } 1677 1678 return (DDI_FAILURE); 1679 } 1680 1681 static int 1682 dadk_rmb_ioctl(struct dadk *dadkp, int cmd, intptr_t arg, int flags, int silent) 1683 1684 { 1685 struct buf *bp; 1686 int err; 1687 struct cmpkt *pktp; 1688 1689 bp = getrbuf(KM_SLEEP); 1690 pktp = dadk_pktprep(dadkp, NULL, bp, dadk_rmb_iodone, NULL, NULL); 1691 if (!pktp) { 1692 freerbuf(bp); 1693 return (ENOMEM); 1694 } 1695 bp->b_back = (struct buf *)arg; 1696 bp->b_forw = (struct buf *)dadkp->dad_flcobjp; 1697 pktp->cp_passthru = (opaque_t)(intptr_t)silent; 1698 1699 err = dadk_ctl_ioctl(dadkp, cmd, (uintptr_t)pktp, flags); 1700 freerbuf(bp); 1701 gda_free(dadkp->dad_ctlobjp, pktp, NULL); 1702 return (err); 1703 1704 1705 } 1706 1707 static void 1708 dadk_rmb_iodone(struct buf *bp) 1709 { 1710 struct cmpkt *pktp; 1711 struct dadk *dadkp; 1712 1713 pktp = GDA_BP_PKT(bp); 1714 dadkp = PKT2DADK(pktp); 1715 1716 bp->b_flags &= ~(B_DONE|B_BUSY); 1717 1718 /* Start next one */ 1719 FLC_DEQUE(dadkp->dad_flcobjp, bp); 1720 1721 mutex_enter(&dadkp->dad_cmd_mutex); 1722 dadkp->dad_cmd_count--; 1723 mutex_exit(&dadkp->dad_cmd_mutex); 1724 biodone(bp); 1725 } 1726 1727 static int 1728 dadk_dk_buf_setup(struct dadk *dadkp, opaque_t *cmdp, dev_t dev, 1729 enum uio_seg dataspace, int rw) 1730 { 1731 struct dadkio_rwcmd *rwcmdp = (struct dadkio_rwcmd *)cmdp; 1732 struct buf *bp; 1733 struct iovec aiov; 1734 struct uio auio; 1735 struct uio *uio = &auio; 1736 int status; 1737 1738 bp = getrbuf(KM_SLEEP); 1739 1740 bp->av_forw = bp->b_forw = (struct buf *)dadkp; 1741 bp->b_back = (struct buf *)rwcmdp; /* ioctl packet */ 1742 1743 bzero((caddr_t)&auio, sizeof (struct uio)); 1744 bzero((caddr_t)&aiov, sizeof (struct iovec)); 1745 aiov.iov_base = rwcmdp->bufaddr; 1746 aiov.iov_len = rwcmdp->buflen; 1747 uio->uio_iov = &aiov; 1748 1749 uio->uio_iovcnt = 1; 1750 uio->uio_resid = rwcmdp->buflen; 1751 uio->uio_segflg = dataspace; 1752 1753 /* Let physio do the rest... */ 1754 status = physio(dadk_dk_strategy, bp, dev, rw, dadkmin, uio); 1755 1756 freerbuf(bp); 1757 return (status); 1758 1759 } 1760 1761 /* Do not let a user gendisk request get too big or */ 1762 /* else we could use to many resources. */ 1763 1764 static void 1765 dadkmin(struct buf *bp) 1766 { 1767 if (bp->b_bcount > dadk_dk_maxphys) 1768 bp->b_bcount = dadk_dk_maxphys; 1769 } 1770 1771 static int 1772 dadk_dk_strategy(struct buf *bp) 1773 { 1774 dadk_dk((struct dadk *)bp->av_forw, (struct dadkio_rwcmd *)bp->b_back, 1775 bp); 1776 return (0); 1777 } 1778 1779 static void 1780 dadk_dk(struct dadk *dadkp, struct dadkio_rwcmd *rwcmdp, struct buf *bp) 1781 { 1782 struct cmpkt *pktp; 1783 1784 pktp = dadk_pktprep(dadkp, NULL, bp, dadk_iodone, NULL, NULL); 1785 if (!pktp) { 1786 bioerror(bp, ENOMEM); 1787 biodone(bp); 1788 return; 1789 } 1790 1791 pktp->cp_passthru = rwcmdp; 1792 1793 (void) dadk_ioprep(dadkp, pktp); 1794 1795 mutex_enter(&dadkp->dad_cmd_mutex); 1796 dadkp->dad_cmd_count++; 1797 mutex_exit(&dadkp->dad_cmd_mutex); 1798 FLC_ENQUE(dadkp->dad_flcobjp, bp); 1799 } 1800 1801 /* 1802 * There is no existing way to notify cmdk module 1803 * when the command completed, so add this function 1804 * to calculate how many on-going commands. 1805 */ 1806 int 1807 dadk_getcmds(opaque_t objp) 1808 { 1809 struct dadk *dadkp = (struct dadk *)objp; 1810 int count; 1811 1812 mutex_enter(&dadkp->dad_cmd_mutex); 1813 count = dadkp->dad_cmd_count; 1814 mutex_exit(&dadkp->dad_cmd_mutex); 1815 return (count); 1816 } 1817 1818 /* 1819 * this function was used to calc the cmd for CTL_IOCTL 1820 */ 1821 static int 1822 dadk_ctl_ioctl(struct dadk *dadkp, uint32_t cmd, uintptr_t arg, int flag) 1823 { 1824 int error; 1825 mutex_enter(&dadkp->dad_cmd_mutex); 1826 dadkp->dad_cmd_count++; 1827 mutex_exit(&dadkp->dad_cmd_mutex); 1828 error = CTL_IOCTL(dadkp->dad_ctlobjp, cmd, arg, flag); 1829 mutex_enter(&dadkp->dad_cmd_mutex); 1830 dadkp->dad_cmd_count--; 1831 mutex_exit(&dadkp->dad_cmd_mutex); 1832 return (error); 1833 }