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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #include <sys/note.h> 27 28 /* 29 * Generic SCSI Host Bus Adapter interface implementation 30 */ 31 #include <sys/scsi/scsi.h> 32 #include <sys/file.h> 33 #include <sys/ddi_impldefs.h> 34 #include <sys/ndi_impldefs.h> 35 #include <sys/ddi.h> 36 #include <sys/sunmdi.h> 37 #include <sys/epm.h> 38 39 extern struct scsi_pkt *scsi_init_cache_pkt(struct scsi_address *, 40 struct scsi_pkt *, struct buf *, int, int, int, int, 41 int (*)(caddr_t), caddr_t); 42 extern void scsi_free_cache_pkt(struct scsi_address *, struct scsi_pkt *); 43 extern void scsi_cache_dmafree(struct scsi_address *, struct scsi_pkt *); 44 extern void scsi_sync_cache_pkt(struct scsi_address *, struct scsi_pkt *); 45 46 /* 47 * Round up all allocations so that we can guarantee 48 * long-long alignment. This is the same alignment 49 * provided by kmem_alloc(). 50 */ 51 #define ROUNDUP(x) (((x) + 0x07) & ~0x07) 52 53 /* Magic number to track correct allocations in wrappers */ 54 #define PKT_WRAPPER_MAGIC 0xa110ced /* alloced correctly */ 55 56 kmutex_t scsi_flag_nointr_mutex; 57 kcondvar_t scsi_flag_nointr_cv; 58 kmutex_t scsi_log_mutex; 59 60 /* 61 * Prototypes for static functions 62 */ 63 static int scsi_hba_bus_ctl( 64 dev_info_t *self, 65 dev_info_t *child, 66 ddi_ctl_enum_t op, 67 void *arg, 68 void *result); 69 70 static int scsi_hba_map_fault( 71 dev_info_t *self, 72 dev_info_t *child, 73 struct hat *hat, 74 struct seg *seg, 75 caddr_t addr, 76 struct devpage *dp, 77 pfn_t pfn, 78 uint_t prot, 79 uint_t lock); 80 81 static int scsi_hba_get_eventcookie( 82 dev_info_t *self, 83 dev_info_t *child, 84 char *name, 85 ddi_eventcookie_t *eventp); 86 87 static int scsi_hba_add_eventcall( 88 dev_info_t *self, 89 dev_info_t *child, 90 ddi_eventcookie_t event, 91 void (*callback)( 92 dev_info_t *dip, 93 ddi_eventcookie_t event, 94 void *arg, 95 void *bus_impldata), 96 void *arg, 97 ddi_callback_id_t *cb_id); 98 99 static int scsi_hba_remove_eventcall( 100 dev_info_t *self, 101 ddi_callback_id_t id); 102 103 static int scsi_hba_post_event( 104 dev_info_t *self, 105 dev_info_t *child, 106 ddi_eventcookie_t event, 107 void *bus_impldata); 108 109 static int scsi_hba_info( 110 dev_info_t *self, 111 ddi_info_cmd_t infocmd, 112 void *arg, 113 void **result); 114 115 static int scsi_hba_bus_config( 116 dev_info_t *self, 117 uint_t flags, 118 ddi_bus_config_op_t op, 119 void *arg, 120 dev_info_t **childp); 121 122 static int scsi_hba_bus_unconfig( 123 dev_info_t *self, 124 uint_t flags, 125 ddi_bus_config_op_t op, 126 void *arg); 127 128 static int scsi_hba_fm_init_child( 129 dev_info_t *self, 130 dev_info_t *child, 131 int cap, 132 ddi_iblock_cookie_t *ibc); 133 134 static int scsi_hba_bus_power( 135 dev_info_t *self, 136 void *impl_arg, 137 pm_bus_power_op_t op, 138 void *arg, 139 void *result); 140 141 /* busops vector for SCSI HBA's. */ 142 static struct bus_ops scsi_hba_busops = { 143 BUSO_REV, 144 nullbusmap, /* bus_map */ 145 NULL, /* bus_get_intrspec */ 146 NULL, /* bus_add_intrspec */ 147 NULL, /* bus_remove_intrspec */ 148 scsi_hba_map_fault, /* bus_map_fault */ 149 ddi_dma_map, /* bus_dma_map */ 150 ddi_dma_allochdl, /* bus_dma_allochdl */ 151 ddi_dma_freehdl, /* bus_dma_freehdl */ 152 ddi_dma_bindhdl, /* bus_dma_bindhdl */ 153 ddi_dma_unbindhdl, /* bus_unbindhdl */ 154 ddi_dma_flush, /* bus_dma_flush */ 155 ddi_dma_win, /* bus_dma_win */ 156 ddi_dma_mctl, /* bus_dma_ctl */ 157 scsi_hba_bus_ctl, /* bus_ctl */ 158 ddi_bus_prop_op, /* bus_prop_op */ 159 scsi_hba_get_eventcookie, /* bus_get_eventcookie */ 160 scsi_hba_add_eventcall, /* bus_add_eventcall */ 161 scsi_hba_remove_eventcall, /* bus_remove_eventcall */ 162 scsi_hba_post_event, /* bus_post_event */ 163 NULL, /* bus_intr_ctl */ 164 scsi_hba_bus_config, /* bus_config */ 165 scsi_hba_bus_unconfig, /* bus_unconfig */ 166 scsi_hba_fm_init_child, /* bus_fm_init */ 167 NULL, /* bus_fm_fini */ 168 NULL, /* bus_fm_access_enter */ 169 NULL, /* bus_fm_access_exit */ 170 scsi_hba_bus_power /* bus_power */ 171 }; 172 173 /* cb_ops for hotplug :devctl and :scsi support */ 174 static struct cb_ops scsi_hba_cbops = { 175 scsi_hba_open, 176 scsi_hba_close, 177 nodev, /* strategy */ 178 nodev, /* print */ 179 nodev, /* dump */ 180 nodev, /* read */ 181 nodev, /* write */ 182 scsi_hba_ioctl, /* ioctl */ 183 nodev, /* devmap */ 184 nodev, /* mmap */ 185 nodev, /* segmap */ 186 nochpoll, /* poll */ 187 ddi_prop_op, /* prop_op */ 188 NULL, /* stream */ 189 D_NEW|D_MP|D_HOTPLUG, /* cb_flag */ 190 CB_REV, /* rev */ 191 nodev, /* int (*cb_aread)() */ 192 nodev /* int (*cb_awrite)() */ 193 }; 194 195 /* 196 * SCSI_HBA_LOG is used for all messages. A logging level is specified when 197 * generating a message. Some levels correspond directly to cmn_err levels, 198 * the others are associated with increasing levels diagnostic/debug output. 199 * For _LOG() messages, a __func__ prefix will identify the function origin 200 * of the message. For _LOG_NF messages, there is no function prefix or 201 * self/child context. Filtering of messages is provided based on logging 202 * level, but messages with cmn_err logging level and messages generated 203 * generated with _LOG_NF() are never filtered. 204 * 205 * For debugging, more complete information can be displayed with each message 206 * (full device path and pointer values) by adjusting scsi_hba_log_info. 207 */ 208 /* logging levels */ 209 #define SCSI_HBA_LOGCONT CE_CONT 210 #define SCSI_HBA_LOGNOTE CE_NOTE 211 #define SCSI_HBA_LOGWARN CE_WARN 212 #define SCSI_HBA_LOGPANIC CE_PANIC 213 #define SCSI_HBA_LOGIGNORE CE_IGNORE 214 #define SCSI_HBA_LOG_CE_MASK 0x0000000F /* no filter for these levels */ 215 #define SCSI_HBA_LOG1 0x00000010 /* DIAG1 level enable */ 216 #define SCSI_HBA_LOG2 0x00000020 /* DIAG2 level enable */ 217 #define SCSI_HBA_LOG3 0x00000040 /* DIAG3 level enable */ 218 #define SCSI_HBA_LOG4 0x00000080 /* DIAG4 level enable */ 219 #define SCSI_HBA_LOGTRACE 0x00000100 /* TRACE enable */ 220 #if (CE_CONT | CE_NOTE | CE_WARN | CE_PANIC | CE_IGNORE) > SCSI_HBA_LOG_CE_MASK 221 Error, problem with CE_ definitions 222 #endif 223 224 /* 225 * Tunable log message augmentation and filters: filters do not apply to 226 * SCSI_HBA_LOG_CE_MASK level messages or LOG_NF() messages. 227 * 228 * An example set of /etc/system tunings to simplify debug a SCSA pHCI HBA 229 * driver called "pmcs", including "scsi_vhci" operation, might be: 230 * 231 * echo "set scsi:scsi_hba_log_filter_level=0xf0" >> /etc/system 232 * echo "set scsi:scsi_hba_log_filter_phci=\"pmcs\"" >> /etc/system 233 * echo "set scsi:scsi_hba_log_filter_vhci=\"scsi_vhci\"" >> /etc/system 234 * echo "set scsi:scsi_hba_log_align=1" >> /etc/system 235 * echo "set scsi:scsi_hba_log_fcif=0x21" >> /etc/system 236 * echo "set scsi:scsi_hba_log_mt_disable=0x6" >> /etc/system 237 * echo "set mtc_off=1" >> /etc/system 238 * echo "set mdi_mtc_off=1" >> /etc/system 239 */ 240 int scsi_hba_log_filter_level = 241 SCSI_HBA_LOG1 | 242 0; 243 char *scsi_hba_log_filter_phci = "\0\0\0\0\0\0\0\0\0\0\0\0"; 244 char *scsi_hba_log_filter_vhci = "\0\0\0\0\0\0\0\0\0\0\0\0"; 245 int scsi_hba_log_align = 0; /* NOTE: will not cause truncation */ 246 int scsi_hba_log_fcif = '\0'; /* "^!?" first char in format */ 247 /* ^==0x5e, !==0x21, ?==0x3F */ 248 /* See cmn_err(9F) */ 249 int scsi_hba_log_info = /* augmentation: extra info output */ 250 (0 << 0) | /* 0x0001: process information */ 251 (0 << 1) | /* 0x0002: full /devices path */ 252 (0 << 2); /* 0x0004: devinfo pointer */ 253 254 int scsi_hba_log_mt_disable = 255 /* SCSI_ENUMERATION_MT_LUN_DISABLE | (ie 0x02) */ 256 /* SCSI_ENUMERATION_MT_TARGET_DISABLE | (ie 0x04) */ 257 0; 258 259 /* static data for HBA logging subsystem */ 260 static kmutex_t scsi_hba_log_mutex; 261 static char scsi_hba_log_i[512]; 262 static char scsi_hba_log_buf[512]; 263 static char scsi_hba_fmt[512]; 264 265 /* Macros to use in scsi_hba.c source code below */ 266 #define SCSI_HBA_LOG(x) scsi_hba_log x 267 #define _LOG(level) SCSI_HBA_LOG##level, __func__ 268 #define _LOG_NF(level) SCSI_HBA_LOG##level, NULL, NULL, NULL 269 #define _LOG_TRACE _LOG(TRACE) 270 271 /*PRINTFLIKE5*/ 272 void 273 scsi_hba_log(int level, const char *func, dev_info_t *self, dev_info_t *child, 274 const char *fmt, ...) 275 { 276 va_list ap; 277 int clevel; 278 int align; 279 char *info; 280 char *f; 281 char *ua; 282 283 /* derive self from child's parent */ 284 if ((self == NULL) && child) 285 self = ddi_get_parent(child); 286 287 /* no filtering of SCSI_HBA_LOG_CE_MASK or LOG_NF messages */ 288 if (((level & SCSI_HBA_LOG_CE_MASK) != level) && (func != NULL)) { 289 /* scsi_hba_log_filter_level: filter on level as bitmask */ 290 if ((level & scsi_hba_log_filter_level) == 0) 291 return; 292 293 /* scsi_hba_log_filter_phci/vhci: on name of driver */ 294 if (*scsi_hba_log_filter_phci && 295 ((self == NULL) || 296 (ddi_driver_name(self) == NULL) || 297 strcmp(ddi_driver_name(self), scsi_hba_log_filter_phci))) { 298 /* does not match pHCI, check vHCI */ 299 if (*scsi_hba_log_filter_vhci && 300 ((self == NULL) || 301 (ddi_driver_name(self) == NULL) || 302 strcmp(ddi_driver_name(self), 303 scsi_hba_log_filter_vhci))) { 304 /* does not match vHCI */ 305 return; 306 } 307 } 308 309 310 /* passed filters, determine align */ 311 align = scsi_hba_log_align; 312 313 /* shorten func for filtered output */ 314 if (strncmp(func, "scsi_hba_", 9) == 0) 315 func += 9; 316 if (strncmp(func, "scsi_", 5) == 0) 317 func += 5; 318 } else { 319 /* don't align output that is never filtered */ 320 align = 0; 321 } 322 323 /* determine the cmn_err form from the level */ 324 clevel = ((level & SCSI_HBA_LOG_CE_MASK) == level) ? level : CE_CONT; 325 326 /* protect common buffers used to format output */ 327 mutex_enter(&scsi_hba_log_mutex); 328 329 /* skip special first characters, we add them back below */ 330 f = (char *)fmt; 331 if (*f && strchr("^!?", *f)) 332 f++; 333 va_start(ap, fmt); 334 (void) vsprintf(scsi_hba_log_buf, f, ap); 335 va_end(ap); 336 337 /* augment message with 'information' */ 338 info = scsi_hba_log_i; 339 *info = '\0'; 340 if ((scsi_hba_log_info & 0x0001) && curproc && PTOU(curproc)->u_comm) { 341 (void) sprintf(info, "%s[%d]%p ", 342 PTOU(curproc)->u_comm, curproc->p_pid, (void *)curthread); 343 info += strlen(info); 344 } 345 if (self) { 346 if ((scsi_hba_log_info & 0x0004) && (child || self)) { 347 (void) sprintf(info, "%p ", 348 (void *)(child ? child : self)); 349 info += strlen(info); 350 } 351 if (scsi_hba_log_info & 0x0002) { 352 (void) ddi_pathname(child ? child : self, info); 353 (void) strcat(info, " "); 354 info += strlen(info); 355 } 356 357 /* always provide 'default' information about self &child */ 358 (void) sprintf(info, "%s%d ", ddi_driver_name(self), 359 ddi_get_instance(self)); 360 info += strlen(info); 361 if (child) { 362 ua = ddi_get_name_addr(child); 363 (void) sprintf(info, "%s@%s ", 364 ddi_node_name(child), (ua && *ua) ? ua : ""); 365 info += strlen(info); 366 } 367 } 368 369 /* turn off alignment if truncation would occur */ 370 if (align && ((strlen(func) > 18) || (strlen(scsi_hba_log_i) > 36))) 371 align = 0; 372 373 /* adjust for aligned output */ 374 if (align) { 375 if (func == NULL) 376 func = ""; 377 /* remove trailing blank with align output */ 378 if ((info != scsi_hba_log_i) && (*(info -1) == '\b')) 379 *(info - 1) = '\0'; 380 } 381 382 /* special "first character in format" must be in format itself */ 383 f = scsi_hba_fmt; 384 if (fmt[0] && strchr("^!?", fmt[0])) 385 *f++ = fmt[0]; 386 else if (scsi_hba_log_fcif) 387 *f++ = (char)scsi_hba_log_fcif; /* add global fcif */ 388 if (align) 389 (void) sprintf(f, "%s", "%-18.18s: %36.36s: %s%s"); 390 else 391 (void) sprintf(f, "%s", func ? "%s: %s%s%s" : "%s%s%s"); 392 393 if (func) 394 cmn_err(clevel, scsi_hba_fmt, func, scsi_hba_log_i, 395 scsi_hba_log_buf, clevel == CE_CONT ? "\n" : ""); 396 else 397 cmn_err(clevel, scsi_hba_fmt, scsi_hba_log_i, 398 scsi_hba_log_buf, clevel == CE_CONT ? "\n" : ""); 399 mutex_exit(&scsi_hba_log_mutex); 400 } 401 402 /* 403 * Called from _init() when loading "scsi" module 404 */ 405 void 406 scsi_initialize_hba_interface() 407 { 408 SCSI_HBA_LOG((_LOG_TRACE, NULL, NULL, __func__)); 409 410 mutex_init(&scsi_log_mutex, NULL, MUTEX_DRIVER, NULL); 411 mutex_init(&scsi_flag_nointr_mutex, NULL, MUTEX_DRIVER, NULL); 412 cv_init(&scsi_flag_nointr_cv, NULL, CV_DRIVER, NULL); 413 mutex_init(&scsi_hba_log_mutex, NULL, MUTEX_DRIVER, NULL); 414 } 415 416 int 417 scsi_hba_pkt_constructor(void *buf, void *arg, int kmflag) 418 { 419 struct scsi_pkt_cache_wrapper *pktw; 420 struct scsi_pkt *pkt; 421 scsi_hba_tran_t *tran = (scsi_hba_tran_t *)arg; 422 int pkt_len; 423 char *ptr; 424 425 /* 426 * allocate a chunk of memory for the following: 427 * scsi_pkt 428 * pcw_* fields 429 * pkt_ha_private 430 * pkt_cdbp, if needed 431 * (pkt_private always null) 432 * pkt_scbp, if needed 433 */ 434 pkt_len = tran->tran_hba_len + sizeof (struct scsi_pkt_cache_wrapper); 435 if (tran->tran_hba_flags & SCSI_HBA_TRAN_CDB) 436 pkt_len += DEFAULT_CDBLEN; 437 if (tran->tran_hba_flags & SCSI_HBA_TRAN_SCB) 438 pkt_len += DEFAULT_SCBLEN; 439 bzero(buf, pkt_len); 440 441 ptr = buf; 442 pktw = buf; 443 ptr += sizeof (struct scsi_pkt_cache_wrapper); 444 pkt = &(pktw->pcw_pkt); 445 pkt->pkt_ha_private = (opaque_t)ptr; 446 447 pktw->pcw_magic = PKT_WRAPPER_MAGIC; /* alloced correctly */ 448 /* 449 * keep track of the granularity at the time this handle was 450 * allocated 451 */ 452 pktw->pcw_granular = tran->tran_dma_attr.dma_attr_granular; 453 454 if (ddi_dma_alloc_handle(tran->tran_hba_dip, 455 &tran->tran_dma_attr, 456 kmflag == KM_SLEEP ? SLEEP_FUNC: NULL_FUNC, NULL, 457 &pkt->pkt_handle) != DDI_SUCCESS) { 458 459 return (-1); 460 } 461 ptr += tran->tran_hba_len; 462 if (tran->tran_hba_flags & SCSI_HBA_TRAN_CDB) { 463 pkt->pkt_cdbp = (opaque_t)ptr; 464 ptr += DEFAULT_CDBLEN; 465 } 466 pkt->pkt_private = NULL; 467 if (tran->tran_hba_flags & SCSI_HBA_TRAN_SCB) 468 pkt->pkt_scbp = (opaque_t)ptr; 469 if (tran->tran_pkt_constructor) 470 return ((*tran->tran_pkt_constructor)(pkt, arg, kmflag)); 471 else 472 return (0); 473 } 474 475 #define P_TO_TRAN(pkt) ((pkt)->pkt_address.a_hba_tran) 476 477 void 478 scsi_hba_pkt_destructor(void *buf, void *arg) 479 { 480 struct scsi_pkt_cache_wrapper *pktw = buf; 481 struct scsi_pkt *pkt = &(pktw->pcw_pkt); 482 scsi_hba_tran_t *tran = (scsi_hba_tran_t *)arg; 483 484 ASSERT(pktw->pcw_magic == PKT_WRAPPER_MAGIC); 485 ASSERT((pktw->pcw_flags & PCW_BOUND) == 0); 486 if (tran->tran_pkt_destructor) 487 (*tran->tran_pkt_destructor)(pkt, arg); 488 489 /* make sure nobody messed with our pointers */ 490 ASSERT(pkt->pkt_ha_private == (opaque_t)((char *)pkt + 491 sizeof (struct scsi_pkt_cache_wrapper))); 492 ASSERT(((tran->tran_hba_flags & SCSI_HBA_TRAN_SCB) == 0) || 493 (pkt->pkt_scbp == (opaque_t)((char *)pkt + 494 tran->tran_hba_len + 495 (((tran->tran_hba_flags & SCSI_HBA_TRAN_CDB) == 0) ? 496 0 : DEFAULT_CDBLEN) + 497 DEFAULT_PRIVLEN + sizeof (struct scsi_pkt_cache_wrapper)))); 498 ASSERT(((tran->tran_hba_flags & SCSI_HBA_TRAN_CDB) == 0) || 499 (pkt->pkt_cdbp == (opaque_t)((char *)pkt + 500 tran->tran_hba_len + 501 sizeof (struct scsi_pkt_cache_wrapper)))); 502 ASSERT(pkt->pkt_handle); 503 ddi_dma_free_handle(&pkt->pkt_handle); 504 pkt->pkt_handle = NULL; 505 pkt->pkt_numcookies = 0; 506 pktw->pcw_total_xfer = 0; 507 pktw->pcw_totalwin = 0; 508 pktw->pcw_curwin = 0; 509 } 510 511 /* 512 * Called by an HBA from _init() to plumb in common SCSA bus_ops and 513 * cb_ops for the HBA's :devctl and :scsi minor nodes. 514 */ 515 int 516 scsi_hba_init(struct modlinkage *modlp) 517 { 518 struct dev_ops *hba_dev_ops; 519 520 SCSI_HBA_LOG((_LOG_TRACE, NULL, NULL, __func__)); 521 522 /* 523 * Get a pointer to the dev_ops structure of the HBA and plumb our 524 * bus_ops vector into the HBA's dev_ops structure. 525 */ 526 hba_dev_ops = ((struct modldrv *)(modlp->ml_linkage[0]))->drv_dev_ops; 527 ASSERT(hba_dev_ops->devo_bus_ops == NULL); 528 hba_dev_ops->devo_bus_ops = &scsi_hba_busops; 529 530 /* 531 * Plumb our cb_ops vector into the HBA's dev_ops structure to 532 * provide getinfo and hotplugging ioctl support if the HBA driver 533 * does not already provide this support. 534 */ 535 if (hba_dev_ops->devo_cb_ops == NULL) { 536 hba_dev_ops->devo_cb_ops = &scsi_hba_cbops; 537 } 538 if (hba_dev_ops->devo_cb_ops->cb_open == scsi_hba_open) { 539 ASSERT(hba_dev_ops->devo_cb_ops->cb_close == scsi_hba_close); 540 hba_dev_ops->devo_getinfo = scsi_hba_info; 541 } 542 return (0); 543 } 544 545 /* 546 * Called by an HBA attach(9E) to allocate a scsi_hba_tran structure. An HBA 547 * driver will then initialize the structure and then call 548 * scsi_hba_attach_setup. 549 */ 550 /*ARGSUSED*/ 551 scsi_hba_tran_t * 552 scsi_hba_tran_alloc( 553 dev_info_t *self, 554 int flags) 555 { 556 scsi_hba_tran_t *tran; 557 558 SCSI_HBA_LOG((_LOG_TRACE, self, NULL, __func__)); 559 560 /* allocate SCSA flavors for self */ 561 ndi_flavorv_alloc(self, SCSA_NFLAVORS); 562 563 tran = kmem_zalloc(sizeof (scsi_hba_tran_t), 564 (flags & SCSI_HBA_CANSLEEP) ? KM_SLEEP : KM_NOSLEEP); 565 566 if (tran) { 567 tran->tran_interconnect_type = INTERCONNECT_PARALLEL; 568 tran->tran_hba_flags |= SCSI_HBA_SCSA_TA; 569 } 570 571 return (tran); 572 } 573 574 /* 575 * Called by an HBA to free a scsi_hba_tran structure 576 */ 577 void 578 scsi_hba_tran_free( 579 scsi_hba_tran_t *tran) 580 { 581 SCSI_HBA_LOG((_LOG_TRACE, tran->tran_hba_dip, NULL, __func__)); 582 583 kmem_free(tran, sizeof (scsi_hba_tran_t)); 584 } 585 586 int 587 scsi_tran_ext_alloc( 588 scsi_hba_tran_t *tran, 589 size_t length, 590 int flags) 591 { 592 void *tran_ext; 593 int ret = DDI_FAILURE; 594 595 tran_ext = kmem_zalloc(length, 596 (flags & SCSI_HBA_CANSLEEP) ? KM_SLEEP : KM_NOSLEEP); 597 if (tran_ext != NULL) { 598 tran->tran_extension = tran_ext; 599 ret = DDI_SUCCESS; 600 } 601 return (ret); 602 } 603 604 void 605 scsi_tran_ext_free( 606 scsi_hba_tran_t *tran, 607 size_t length) 608 { 609 if (tran->tran_extension != NULL) { 610 kmem_free(tran->tran_extension, length); 611 tran->tran_extension = NULL; 612 } 613 } 614 615 /* 616 * Return the unit-address of an 'iport' node, or NULL for non-iport node. 617 */ 618 char * 619 scsi_hba_iport_unit_address(dev_info_t *self) 620 { 621 /* 622 * NOTE: Since 'self' could be a SCSA iport node or a SCSA HBA node, 623 * we can't use SCSA flavors: the flavor of a SCSA HBA node is not 624 * established/owned by SCSA, it is established by the nexus that 625 * created the SCSA HBA node (PCI) as a child. 626 * 627 * NOTE: If we want to support a node_name other than "iport" for 628 * an iport node then we can add support for a "scsa-iport-node-name" 629 * property on the SCSA HBA node. A SCSA HBA driver would set this 630 * property on the SCSA HBA node prior to using the iport API. 631 */ 632 if (strcmp(ddi_node_name(self), "iport") == 0) 633 return (ddi_get_name_addr(self)); 634 else 635 return (NULL); 636 } 637 638 /* 639 * Define a SCSI initiator port (bus/channel) for an HBA card that needs to 640 * support multiple SCSI ports, but only has a single HBA devinfo node. This 641 * function should be called from the HBA's attach(9E) implementation (when 642 * processing the HBA devinfo node attach) after the number of SCSI ports on 643 * the card is known or DR handler once DR handler detects a new port added. 644 * The function returns 0 on failure and 1 on success. 645 * 646 * The implementation will add the port value into the "scsi-iports" property 647 * value maintained on the HBA node as. These properties are used by the generic 648 * scsi bus_config implementation to dynamicaly enumerate the specified iport 649 * children. The enumeration code will, on demand, create the appropriate 650 * iport children with a "scsi-iport" unit address. This node will bind to the 651 * same driver as the HBA node itself. This means that an HBA driver that 652 * uses iports should expect probe(9E), attach(9E), and detach(9E) calls on 653 * the iport children of the HBA. If configuration for all ports was already 654 * done during HBA node attach, the driver should just return DDI_SUCCESS when 655 * confronted with an iport node. 656 * 657 * A maximum of 32 iport ports are supported per HBA devinfo node. 658 * 659 * A NULL "port" can be used to indicate that the framework should enumerate 660 * target children on the HBA node itself, in addition to enumerating target 661 * children on any iport nodes declared. There are two reasons that an HBA may 662 * wish to have target children enumerated on both the HBA node and iport 663 * node(s): 664 * 665 * o If, in the past, HBA hardware had only a single physical port but now 666 * supports multiple physical ports, the updated driver that supports 667 * multiple physical ports may want to avoid /devices path upgrade issues 668 * by enumerating the first physical port under the HBA instead of as a 669 * iport. 670 * 671 * o Some hardware RAID HBA controllers (mlx, chs, etc) support multiple 672 * SCSI physical ports configured so that various physical devices on 673 * the physical ports are amalgamated into virtual devices on a virtual 674 * port. Amalgamated physical devices no longer appear to the host OS 675 * on the physical ports, but other non-amalgamated devices may still be 676 * visible on the physical ports. These drivers use a model where the 677 * physical ports are iport nodes and the HBA node is the virtual port to 678 * the configured virtual devices. 679 * 680 */ 681 682 int 683 scsi_hba_iport_register(dev_info_t *self, char *port) 684 { 685 unsigned int ports = 0; 686 int rval, i; 687 char **iports, **newiports; 688 689 ASSERT(self); 690 if (self == NULL) 691 return (DDI_FAILURE); 692 693 rval = ddi_prop_lookup_string_array(DDI_DEV_T_ANY, self, 694 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, "scsi-iports", &iports, 695 &ports); 696 697 if (ports == SCSI_HBA_MAX_IPORTS) { 698 ddi_prop_free(iports); 699 return (DDI_FAILURE); 700 } 701 702 if (rval == DDI_PROP_SUCCESS) { 703 for (i = 0; i < ports; i++) { 704 if (strcmp(port, iports[i]) == 0) { 705 ddi_prop_free(iports); 706 return (DDI_SUCCESS); 707 } 708 } 709 } 710 711 newiports = kmem_alloc((sizeof (char *) * (ports + 1)), KM_SLEEP); 712 713 for (i = 0; i < ports; i++) { 714 newiports[i] = strdup(iports[i]); 715 } 716 newiports[ports] = strdup(port); 717 ports++; 718 719 rval = 1; 720 721 if (ddi_prop_update_string_array(DDI_DEV_T_NONE, self, 722 "scsi-iports", newiports, ports) != DDI_PROP_SUCCESS) { 723 SCSI_HBA_LOG((_LOG(WARN), self, NULL, 724 "Failed to establish scsi-iport %s", port)); 725 rval = DDI_FAILURE; 726 } else { 727 rval = DDI_SUCCESS; 728 } 729 730 /* If there is iport exist, free property */ 731 if (ports > 1) 732 ddi_prop_free(iports); 733 for (i = 0; i < ports; i++) { 734 strfree(newiports[i]); 735 } 736 kmem_free(newiports, (sizeof (char *)) * ports); 737 738 return (rval); 739 } 740 741 /* 742 * Check if the HBA is with scsi-iport under it 743 */ 744 int 745 scsi_hba_iport_exist(dev_info_t *self) 746 { 747 unsigned int ports = 0; 748 char **iports; 749 int rval; 750 751 rval = ddi_prop_lookup_string_array(DDI_DEV_T_ANY, self, 752 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, "scsi-iports", &iports, 753 &ports); 754 755 if (rval != DDI_PROP_SUCCESS) 756 return (0); 757 758 /* If there is now at least 1 iport, then iports is valid */ 759 if (ports > 0) { 760 rval = 1; 761 } else 762 rval = 0; 763 ddi_prop_free(iports); 764 765 return (rval); 766 } 767 768 dev_info_t * 769 scsi_hba_iport_find(dev_info_t *self, char *portnm) 770 { 771 char *addr = NULL; 772 char **iports; 773 unsigned int num_iports = 0; 774 int rval = DDI_FAILURE; 775 int i = 0; 776 dev_info_t *child = NULL; 777 778 /* check to see if this is an HBA that defined scsi iports */ 779 rval = ddi_prop_lookup_string_array(DDI_DEV_T_ANY, self, 780 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, "scsi-iports", &iports, 781 &num_iports); 782 783 if (rval != DDI_SUCCESS) { 784 return (NULL); 785 } 786 ASSERT(num_iports > 0); 787 788 /* check to see if this port was registered */ 789 for (i = 0; i < num_iports; i++) { 790 if (strcmp(iports[i], portnm) == 0) 791 break; 792 } 793 794 if (i == num_iports) { 795 child = NULL; 796 goto out; 797 } 798 799 addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP); 800 (void) sprintf(addr, "iport@%s", portnm); 801 rval = ndi_devi_config_one(self, addr, &child, NDI_NO_EVENT); 802 kmem_free(addr, SCSI_MAXNAMELEN); 803 804 if (rval != DDI_SUCCESS) { 805 child = NULL; 806 } 807 out: 808 ddi_prop_free(iports); 809 return (child); 810 } 811 812 /* 813 * Common nexus teardown code: used by both scsi_hba_detach() on SCSA HBA node 814 * and iport_devctl_uninitchild() on a SCSA HBA iport node (and for failure 815 * cleanup). Undo scsa_nexus_setup in reverse order. 816 */ 817 static void 818 scsa_nexus_teardown(dev_info_t *self, scsi_hba_tran_t *tran) 819 { 820 if ((self == NULL) || (tran == NULL)) 821 return; 822 /* Teardown FMA. */ 823 if (tran->tran_hba_flags & SCSI_HBA_SCSA_FM) { 824 ddi_fm_fini(self); 825 tran->tran_hba_flags &= SCSI_HBA_SCSA_FM; 826 } 827 } 828 829 /* 830 * Common nexus setup code: used by both scsi_hba_attach_setup() on SCSA HBA 831 * node and iport_devctl_initchild() on a SCSA HBA iport node. 832 * 833 * This code makes no assumptions about tran use by scsi_device children. 834 */ 835 static int 836 scsa_nexus_setup(dev_info_t *self, scsi_hba_tran_t *tran) 837 { 838 int capable; 839 int scsa_minor; 840 841 /* 842 * NOTE: SCSA maintains an 'fm-capable' domain, in tran_fm_capable, 843 * that is not dependent (limited by) the capabilities of its parents. 844 * For example a devinfo node in a branch that is not 845 * DDI_FM_EREPORT_CAPABLE may report as capable, via tran_fm_capable, 846 * to its scsi_device children. 847 * 848 * Get 'fm-capable' property from driver.conf, if present. If not 849 * present, default to the scsi_fm_capable global (which has 850 * DDI_FM_EREPORT_CAPABLE set by default). 851 */ 852 if (tran->tran_fm_capable == DDI_FM_NOT_CAPABLE) 853 tran->tran_fm_capable = ddi_prop_get_int(DDI_DEV_T_ANY, self, 854 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, 855 "fm-capable", scsi_fm_capable); 856 /* 857 * If an HBA is *not* doing its own fma support by calling 858 * ddi_fm_init() prior to scsi_hba_attach_setup(), we provide a 859 * minimal common SCSA implementation so that scsi_device children 860 * can generate ereports via scsi_fm_ereport_post(). We use 861 * ddi_fm_capable() to detect an HBA calling ddi_fm_init() prior to 862 * scsi_hba_attach_setup(). 863 */ 864 if (tran->tran_fm_capable && 865 (ddi_fm_capable(self) == DDI_FM_NOT_CAPABLE)) { 866 /* 867 * We are capable of something, pass our capabilities up 868 * the tree, but use a local variable so our parent can't 869 * limit our capabilities (we don't want our parent to 870 * clear DDI_FM_EREPORT_CAPABLE). 871 * 872 * NOTE: iblock cookies are not important because scsi 873 * HBAs always interrupt below LOCK_LEVEL. 874 */ 875 capable = tran->tran_fm_capable; 876 ddi_fm_init(self, &capable, NULL); 877 878 /* 879 * Set SCSI_HBA_SCSA_FM bit to mark us as usiung the 880 * common minimal SCSA fm implementation - we called 881 * ddi_fm_init(), so we are responsible for calling 882 * ddi_fm_fini() in scsi_hba_detach(). 883 * NOTE: if ddi_fm_init fails in any reason, SKIP. 884 */ 885 if (DEVI(self)->devi_fmhdl) 886 tran->tran_hba_flags |= SCSI_HBA_SCSA_FM; 887 } 888 889 /* If SCSA responsible for for minor nodes, create :devctl minor. */ 890 scsa_minor = (ddi_get_driver(self)->devo_cb_ops->cb_open == 891 scsi_hba_open) ? 1 : 0; 892 if (scsa_minor && ((ddi_create_minor_node(self, "devctl", S_IFCHR, 893 INST2DEVCTL(ddi_get_instance(self)), DDI_NT_SCSI_NEXUS, 0) != 894 DDI_SUCCESS))) { 895 SCSI_HBA_LOG((_LOG(WARN), self, NULL, 896 "can't create devctl minor nodes")); 897 scsa_nexus_teardown(self, tran); 898 return (DDI_FAILURE); 899 } 900 901 return (DDI_SUCCESS); 902 } 903 904 /* 905 * Common tran teardown code: used by iport_devctl_uninitchild() on a SCSA HBA 906 * iport node and (possibly) by scsi_hba_detach() on SCSA HBA node (and for 907 * failure cleanup). Undo scsa_tran_setup in reverse order. 908 */ 909 /*ARGSUSED*/ 910 static void 911 scsa_tran_teardown(dev_info_t *self, scsi_hba_tran_t *tran) 912 { 913 if (tran == NULL) 914 return; 915 tran->tran_iport_dip = NULL; 916 917 /* 918 * In the future, if PHCI was registered in the SCSA 919 * scsa_tran_teardown is able to unregiter PHCI 920 */ 921 } 922 923 static int 924 scsa_tran_setup(dev_info_t *self, scsi_hba_tran_t *tran) 925 { 926 int scsa_minor; 927 int id; 928 static const char *interconnect[] = INTERCONNECT_TYPE_ASCII; 929 930 /* If SCSA responsible for for minor nodes, create ":scsi" */ 931 scsa_minor = (ddi_get_driver(self)->devo_cb_ops->cb_open == 932 scsi_hba_open) ? 1 : 0; 933 if (scsa_minor && (ddi_create_minor_node(self, "scsi", S_IFCHR, 934 INST2SCSI(ddi_get_instance(self)), 935 DDI_NT_SCSI_ATTACHMENT_POINT, 0) != DDI_SUCCESS)) { 936 SCSI_HBA_LOG((_LOG(WARN), self, NULL, 937 "can't create scsi minor nodes")); 938 scsa_nexus_teardown(self, tran); 939 goto fail; 940 } 941 942 /* 943 * If the property does not already exist on self then see if we can 944 * pull it from further up the tree and define it on self. If the 945 * property does not exist above (including options.conf) then use the 946 * default value specified (global variable). 947 */ 948 #define CONFIG_INT_PROP(s, p, dv) { \ 949 if ((ddi_prop_exists(DDI_DEV_T_ANY, s, \ 950 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, p) == 0) && \ 951 (ndi_prop_update_int(DDI_DEV_T_NONE, s, p, \ 952 ddi_prop_get_int(DDI_DEV_T_ANY, ddi_get_parent(s), \ 953 DDI_PROP_NOTPROM, p, dv)) != DDI_PROP_SUCCESS)) \ 954 SCSI_HBA_LOG((_LOG(WARN), NULL, s, \ 955 "can't create property '%s'", p)); \ 956 } 957 958 /* 959 * Attach scsi configuration property parameters not already defined 960 * via driver.conf to this instance of the HBA using global variable 961 * value. Pulling things down from above us to use 962 * "DDI_PROP_NOTPROM | DDI_PROP_DONTPASS" for faster access. 963 */ 964 CONFIG_INT_PROP(self, "scsi-options", scsi_options); 965 CONFIG_INT_PROP(self, "scsi-reset-delay", scsi_reset_delay); 966 CONFIG_INT_PROP(self, "scsi-tag-age-limit", scsi_tag_age_limit); 967 CONFIG_INT_PROP(self, "scsi-watchdog-tick", scsi_watchdog_tick); 968 CONFIG_INT_PROP(self, "scsi-selection-timeout", scsi_selection_timeout); 969 970 /* 971 * cache the scsi-initiator-id as an property defined further up 972 * the tree or defined by OBP on the HBA node so can use 973 * "DDI_PROP_NOTPROM | DDI_PROP_DONTPASS" during enumeration. 974 * We perform the same type of operation that an HBA driver would 975 * use to obtain the 'initiator-id' capability. 976 */ 977 id = ddi_prop_get_int(DDI_DEV_T_ANY, self, 0, "initiator-id", -1); 978 if (id == -1) 979 id = ddi_prop_get_int(DDI_DEV_T_ANY, self, 0, 980 "scsi-initiator-id", -1); 981 if (id != -1) 982 CONFIG_INT_PROP(self, "scsi-initiator-id", id); 983 984 /* Establish 'initiator-interconnect-type' */ 985 if ((tran->tran_hba_flags & SCSI_HBA_SCSA_TA) && 986 (tran->tran_interconnect_type > 0) && 987 (tran->tran_interconnect_type < INTERCONNECT_MAX)) { 988 if (ndi_prop_update_string(DDI_DEV_T_NONE, self, 989 "initiator-interconnect-type", 990 (char *)interconnect[tran->tran_interconnect_type]) 991 != DDI_PROP_SUCCESS) { 992 SCSI_HBA_LOG((_LOG(WARN), self, NULL, 993 "failed to establish " 994 "'initiator-interconnect-type'")); 995 return (DDI_FAILURE); 996 } 997 } 998 999 tran->tran_iport_dip = self; 1000 /* 1001 * In the future SCSA v3, PHCI could be registered in the SCSA 1002 * here. 1003 */ 1004 return (DDI_SUCCESS); 1005 fail: 1006 scsa_tran_teardown(self, tran); 1007 return (DDI_FAILURE); 1008 } 1009 1010 /* 1011 * Obsolete: Called by an HBA to attach an instance of the driver 1012 * Implement this older interface in terms of the new. 1013 */ 1014 /*ARGSUSED*/ 1015 int 1016 scsi_hba_attach( 1017 dev_info_t *self, 1018 ddi_dma_lim_t *hba_lim, 1019 scsi_hba_tran_t *tran, 1020 int flags, 1021 void *hba_options) 1022 { 1023 ddi_dma_attr_t hba_dma_attr; 1024 1025 bzero(&hba_dma_attr, sizeof (ddi_dma_attr_t)); 1026 1027 hba_dma_attr.dma_attr_burstsizes = hba_lim->dlim_burstsizes; 1028 hba_dma_attr.dma_attr_minxfer = hba_lim->dlim_minxfer; 1029 1030 return (scsi_hba_attach_setup(self, &hba_dma_attr, tran, flags)); 1031 } 1032 1033 /* 1034 * Called by an HBA to attach an instance of the driver. 1035 */ 1036 int 1037 scsi_hba_attach_setup( 1038 dev_info_t *self, 1039 ddi_dma_attr_t *hba_dma_attr, 1040 scsi_hba_tran_t *tran, 1041 int flags) 1042 { 1043 SCSI_HBA_LOG((_LOG_TRACE, self, NULL, __func__)); 1044 1045 /* Verify that we are a driver */ 1046 if (ddi_get_driver(self) == NULL) 1047 return (DDI_FAILURE); 1048 1049 ASSERT(scsi_hba_iport_unit_address(self) == NULL); 1050 if (scsi_hba_iport_unit_address(self)) 1051 return (DDI_FAILURE); 1052 1053 ASSERT(tran); 1054 if (tran == NULL) 1055 return (DDI_FAILURE); 1056 1057 /* 1058 * Verify correct scsi_hba_tran_t form: 1059 * o both or none of tran_get_name/tran_get_addr. 1060 */ 1061 if ((tran->tran_get_name == NULL) ^ 1062 (tran->tran_get_bus_addr == NULL)) { 1063 return (DDI_FAILURE); 1064 } 1065 1066 /* 1067 * Save all the important HBA information that must be accessed 1068 * later by scsi_hba_bus_ctl(), and scsi_hba_map(). 1069 */ 1070 tran->tran_hba_dip = self; 1071 tran->tran_hba_flags &= SCSI_HBA_SCSA_TA; 1072 tran->tran_hba_flags |= (flags & ~SCSI_HBA_SCSA_TA); 1073 1074 /* Establish flavor of transport (and ddi_get_driver_private()) */ 1075 ndi_flavorv_set(self, SCSA_FLAVOR_SCSI_DEVICE, tran); 1076 1077 /* 1078 * Note: we only need dma_attr_minxfer and dma_attr_burstsizes 1079 * from the DMA attributes. scsi_hba_attach(9f) only 1080 * guarantees that these two fields are initialized properly. 1081 * If this changes, be sure to revisit the implementation 1082 * of scsi_hba_attach(9F). 1083 */ 1084 (void) memcpy(&tran->tran_dma_attr, hba_dma_attr, 1085 sizeof (ddi_dma_attr_t)); 1086 1087 /* create kmem_cache, if needed */ 1088 if (tran->tran_setup_pkt) { 1089 char tmp[96]; 1090 int hbalen; 1091 int cmdlen = 0; 1092 int statuslen = 0; 1093 1094 ASSERT(tran->tran_init_pkt == NULL); 1095 ASSERT(tran->tran_destroy_pkt == NULL); 1096 1097 tran->tran_init_pkt = scsi_init_cache_pkt; 1098 tran->tran_destroy_pkt = scsi_free_cache_pkt; 1099 tran->tran_sync_pkt = scsi_sync_cache_pkt; 1100 tran->tran_dmafree = scsi_cache_dmafree; 1101 1102 hbalen = ROUNDUP(tran->tran_hba_len); 1103 if (flags & SCSI_HBA_TRAN_CDB) 1104 cmdlen = ROUNDUP(DEFAULT_CDBLEN); 1105 if (flags & SCSI_HBA_TRAN_SCB) 1106 statuslen = ROUNDUP(DEFAULT_SCBLEN); 1107 1108 (void) snprintf(tmp, sizeof (tmp), "pkt_cache_%s_%d", 1109 ddi_driver_name(self), ddi_get_instance(self)); 1110 tran->tran_pkt_cache_ptr = kmem_cache_create(tmp, 1111 sizeof (struct scsi_pkt_cache_wrapper) + 1112 hbalen + cmdlen + statuslen, 8, 1113 scsi_hba_pkt_constructor, scsi_hba_pkt_destructor, 1114 NULL, tran, NULL, 0); 1115 } 1116 1117 /* Perform node setup independent of initiator role */ 1118 if (scsa_nexus_setup(self, tran) != DDI_SUCCESS) 1119 goto fail; 1120 1121 /* 1122 * The SCSI_HBA_HBA flag is passed to scsi_hba_attach_setup when the 1123 * HBA driver knows that *all* children of the SCSA HBA node will be 1124 * 'iports'. If the SCSA HBA node can have iport children and also 1125 * function as an initiator for xxx_device children then it should 1126 * not specify SCSI_HBA_HBA in its scsi_hba_attach_setup call. An 1127 * HBA driver that does not manage iports should not set SCSA_HBA_HBA. 1128 */ 1129 if (tran->tran_hba_flags & SCSI_HBA_HBA) { 1130 /* 1131 * Set the 'ddi-config-driver-node' property on the nexus 1132 * node that notify attach_driver_nodes() to configure all 1133 * immediate children so that nodes which bind to the 1134 * same driver as parent are able to be added into per-driver 1135 * list. 1136 */ 1137 if (ndi_prop_create_boolean(DDI_DEV_T_NONE, 1138 self, "ddi-config-driver-node") != DDI_PROP_SUCCESS) 1139 goto fail; 1140 } else { 1141 if (scsa_tran_setup(self, tran) != DDI_SUCCESS) 1142 goto fail; 1143 } 1144 1145 return (DDI_SUCCESS); 1146 1147 fail: 1148 (void) scsi_hba_detach(self); 1149 return (DDI_FAILURE); 1150 } 1151 1152 /* 1153 * Called by an HBA to detach an instance of the driver 1154 */ 1155 int 1156 scsi_hba_detach(dev_info_t *self) 1157 { 1158 scsi_hba_tran_t *tran; 1159 1160 SCSI_HBA_LOG((_LOG_TRACE, self, NULL, __func__)); 1161 1162 ASSERT(scsi_hba_iport_unit_address(self) == NULL); 1163 if (scsi_hba_iport_unit_address(self)) 1164 return (DDI_FAILURE); 1165 1166 tran = ndi_flavorv_get(self, SCSA_FLAVOR_SCSI_DEVICE); 1167 ASSERT(tran); 1168 if (tran == NULL) 1169 return (DDI_FAILURE); 1170 1171 ASSERT(tran->tran_open_flag == 0); 1172 if (tran->tran_open_flag) 1173 return (DDI_FAILURE); 1174 1175 if (!(tran->tran_hba_flags & SCSI_HBA_HBA)) 1176 scsa_tran_teardown(self, tran); 1177 scsa_nexus_teardown(self, tran); 1178 1179 /* 1180 * XXX - scsi_transport.h states that these data fields should not be 1181 * referenced by the HBA. However, to be consistent with 1182 * scsi_hba_attach(), they are being reset. 1183 */ 1184 tran->tran_hba_dip = (dev_info_t *)NULL; 1185 tran->tran_hba_flags = 0; 1186 (void) memset(&tran->tran_dma_attr, 0, sizeof (ddi_dma_attr_t)); 1187 1188 if (tran->tran_pkt_cache_ptr != NULL) { 1189 kmem_cache_destroy(tran->tran_pkt_cache_ptr); 1190 tran->tran_pkt_cache_ptr = NULL; 1191 } 1192 1193 /* Teardown flavor of transport (and ddi_get_driver_private()) */ 1194 ndi_flavorv_set(self, SCSA_FLAVOR_SCSI_DEVICE, NULL); 1195 1196 return (DDI_SUCCESS); 1197 } 1198 1199 /* 1200 * Called by an HBA from _fini() 1201 */ 1202 void 1203 scsi_hba_fini(struct modlinkage *modlp) 1204 { 1205 struct dev_ops *hba_dev_ops; 1206 1207 SCSI_HBA_LOG((_LOG_TRACE, NULL, NULL, __func__)); 1208 1209 /* Get the devops structure of this module and clear bus_ops vector. */ 1210 hba_dev_ops = ((struct modldrv *)(modlp->ml_linkage[0]))->drv_dev_ops; 1211 1212 if (hba_dev_ops->devo_cb_ops == &scsi_hba_cbops) 1213 hba_dev_ops->devo_cb_ops = NULL; 1214 1215 if (hba_dev_ops->devo_getinfo == scsi_hba_info) 1216 hba_dev_ops->devo_getinfo = NULL; 1217 1218 hba_dev_ops->devo_bus_ops = (struct bus_ops *)NULL; 1219 } 1220 1221 /* 1222 * SAS specific functions 1223 */ 1224 /*ARGSUSED*/ 1225 sas_hba_tran_t * 1226 sas_hba_tran_alloc( 1227 dev_info_t *self, 1228 int flags) 1229 { 1230 /* allocate SCSA flavors for self */ 1231 ndi_flavorv_alloc(self, SCSA_NFLAVORS); 1232 return (kmem_zalloc(sizeof (sas_hba_tran_t), KM_SLEEP)); 1233 } 1234 1235 void 1236 sas_hba_tran_free( 1237 sas_hba_tran_t *tran) 1238 { 1239 kmem_free(tran, sizeof (sas_hba_tran_t)); 1240 } 1241 1242 int 1243 sas_hba_attach_setup( 1244 dev_info_t *self, 1245 sas_hba_tran_t *tran) 1246 { 1247 ASSERT(scsi_hba_iport_unit_address(self) == NULL); 1248 if (scsi_hba_iport_unit_address(self)) 1249 return (DDI_FAILURE); 1250 /* 1251 * The owner of the this devinfo_t was responsible 1252 * for informing the framework already about 1253 * additional flavors. 1254 */ 1255 ndi_flavorv_set(self, SCSA_FLAVOR_SMP, tran); 1256 return (DDI_SUCCESS); 1257 } 1258 1259 int 1260 sas_hba_detach(dev_info_t *self) 1261 { 1262 ASSERT(scsi_hba_iport_unit_address(self) == NULL); 1263 if (scsi_hba_iport_unit_address(self)) 1264 return (DDI_FAILURE); 1265 1266 ndi_flavorv_set(self, SCSA_FLAVOR_SMP, NULL); 1267 return (DDI_SUCCESS); 1268 } 1269 1270 /* 1271 * SMP child flavored functions 1272 */ 1273 1274 static int 1275 smp_busctl_reportdev(dev_info_t *child) 1276 { 1277 dev_info_t *self = ddi_get_parent(child); 1278 char *smp_wwn; 1279 1280 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child, 1281 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 1282 SMP_WWN, &smp_wwn) != DDI_SUCCESS) { 1283 return (DDI_FAILURE); 1284 } 1285 SCSI_HBA_LOG((_LOG_NF(CONT), "?%s%d at %s%d: wwn %s\n", 1286 ddi_driver_name(child), ddi_get_instance(child), 1287 ddi_driver_name(self), ddi_get_instance(self), smp_wwn)); 1288 ddi_prop_free(smp_wwn); 1289 return (DDI_SUCCESS); 1290 } 1291 1292 static int 1293 smp_busctl_initchild(dev_info_t *child) 1294 { 1295 dev_info_t *self = ddi_get_parent(child); 1296 sas_hba_tran_t *tran = ndi_flavorv_get(self, SCSA_FLAVOR_SMP); 1297 struct smp_device *smp; 1298 char addr[SCSI_MAXNAMELEN]; 1299 dev_info_t *ndip; 1300 char *smp_wwn = NULL; 1301 uint64_t wwn; 1302 1303 ASSERT(tran); 1304 if (tran == NULL) 1305 return (DDI_FAILURE); 1306 1307 smp = kmem_zalloc(sizeof (struct smp_device), KM_SLEEP); 1308 smp->dip = child; 1309 smp->smp_addr.a_hba_tran = tran; 1310 1311 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child, 1312 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 1313 SMP_WWN, &smp_wwn) != DDI_SUCCESS) { 1314 goto failure; 1315 } 1316 1317 if (scsi_wwnstr_to_wwn(smp_wwn, &wwn)) { 1318 goto failure; 1319 } 1320 1321 bcopy(&wwn, smp->smp_addr.a_wwn, SAS_WWN_BYTE_SIZE); 1322 (void) snprintf(addr, SCSI_MAXNAMELEN, "w%s", smp_wwn); 1323 1324 /* Prevent duplicate nodes. */ 1325 ndip = ndi_devi_find(self, ddi_node_name(child), addr); 1326 if (ndip && (ndip != child)) { 1327 goto failure; 1328 } 1329 1330 ddi_set_name_addr(child, addr); 1331 ddi_set_driver_private(child, smp); 1332 ddi_prop_free(smp_wwn); 1333 return (DDI_SUCCESS); 1334 1335 failure: 1336 kmem_free(smp, sizeof (struct smp_device)); 1337 if (smp_wwn) { 1338 ddi_prop_free(smp_wwn); 1339 } 1340 return (DDI_FAILURE); 1341 } 1342 1343 /*ARGSUSED*/ 1344 static int 1345 smp_busctl_uninitchild(dev_info_t *child) 1346 { 1347 struct smp_device *smp = ddi_get_driver_private(child); 1348 1349 ASSERT(smp); 1350 if (smp == NULL) 1351 return (DDI_FAILURE); 1352 kmem_free(smp, sizeof (*smp)); 1353 ddi_set_driver_private(child, NULL); 1354 ddi_set_name_addr(child, NULL); 1355 return (DDI_SUCCESS); 1356 } 1357 1358 /* 1359 * Wrapper to scsi_get_name which takes a devinfo argument instead of a 1360 * scsi_device structure. 1361 */ 1362 static int 1363 scsi_hba_name_child(dev_info_t *child, char *addr, int maxlen) 1364 { 1365 struct scsi_device *sd = ddi_get_driver_private(child); 1366 1367 /* nodes are named by tran_get_name or default "tgt,lun" */ 1368 if (sd && (scsi_get_name(sd, addr, maxlen) == 1)) 1369 return (DDI_SUCCESS); 1370 1371 return (DDI_FAILURE); 1372 } 1373 1374 static int 1375 scsi_busctl_reportdev(dev_info_t *child) 1376 { 1377 dev_info_t *self = ddi_get_parent(child); 1378 scsi_hba_tran_t *tran = ddi_get_driver_private(self); 1379 struct scsi_device *sd = ddi_get_driver_private(child); 1380 char ua[SCSI_MAXNAMELEN]; 1381 char ba[SCSI_MAXNAMELEN]; 1382 1383 SCSI_HBA_LOG((_LOG_TRACE, NULL, child, __func__)); 1384 1385 ASSERT(tran && sd); 1386 if ((tran == NULL) || (sd == NULL)) 1387 return (DDI_FAILURE); 1388 1389 /* get the unit_address and bus_addr information */ 1390 if ((scsi_get_name(sd, ua, sizeof (ua)) == 0) || 1391 (scsi_get_bus_addr(sd, ba, sizeof (ba)) == 0)) { 1392 SCSI_HBA_LOG((_LOG(WARN), NULL, child, "REPORTDEV failure")); 1393 return (DDI_FAILURE); 1394 } 1395 1396 if (tran->tran_get_name == NULL) 1397 SCSI_HBA_LOG((_LOG_NF(CONT), "?%s%d at %s%d: %s", 1398 ddi_driver_name(child), ddi_get_instance(child), 1399 ddi_driver_name(self), ddi_get_instance(self), ba)); 1400 else 1401 SCSI_HBA_LOG((_LOG_NF(CONT), 1402 "?%s%d at %s%d: unit-address %s: %s", 1403 ddi_driver_name(child), ddi_get_instance(child), 1404 ddi_driver_name(self), ddi_get_instance(self), ua, ba)); 1405 return (DDI_SUCCESS); 1406 } 1407 1408 /* 1409 * scsi_busctl_initchild is called to initialize the SCSA transport for 1410 * communication with a particular child scsi target device. Successful 1411 * initialization requires properties on the node which describe the address 1412 * of the target device. If the address of the target device can't be 1413 * determined from properties then DDI_NOT_WELL_FORMED is returned. Nodes that 1414 * are DDI_NOT_WELL_FORMED are considered an implementation artifact. 1415 * The child may be one of the following types of devinfo nodes: 1416 * 1417 * OBP node: 1418 * OBP does not enumerate target devices attached a SCSI bus. These 1419 * template/stub/wildcard nodes are a legacy artifact for support of old 1420 * driver loading methods. Since they have no properties, 1421 * DDI_NOT_WELL_FORMED will be returned. 1422 * 1423 * SID node: 1424 * The node may be either a: 1425 * o probe/barrier SID node 1426 * o a dynamic SID target node 1427 * 1428 * driver.conf node: The situation for this nexus is different than most. 1429 * Typically a driver.conf node definition is used to either define a 1430 * new child devinfo node or to further decorate (via merge) a SID 1431 * child with properties. In our case we use the nodes for *both* 1432 * purposes. 1433 * 1434 * In both the SID node and driver.conf node cases we must form the nodes 1435 * "@addr" from the well-known scsi(9P) device unit-address properties on 1436 * the node. 1437 * 1438 * For HBA drivers that implement the deprecated tran_get_name interface, 1439 * "@addr" construction involves having that driver interpret properties via 1440 * scsi_hba_name_child -> scsi_get_name -> tran_get_name: there is no 1441 * requiremnt for the property names to be well-known. 1442 */ 1443 static int 1444 scsi_busctl_initchild(dev_info_t *child) 1445 { 1446 dev_info_t *self = ddi_get_parent(child); 1447 dev_info_t *dup; 1448 scsi_hba_tran_t *tran; 1449 struct scsi_device *sd; 1450 scsi_hba_tran_t *tran_clone; 1451 int tgt = 0; 1452 int lun = 0; 1453 int sfunc = 0; 1454 int err = DDI_FAILURE; 1455 char addr[SCSI_MAXNAMELEN]; 1456 1457 ASSERT(DEVI_BUSY_OWNED(self)); 1458 SCSI_HBA_LOG((_LOG(4), NULL, child, "init begin")); 1459 1460 /* 1461 * For a driver like fp with multiple upper-layer-protocols 1462 * it is possible for scsi_hba_init in _init to plumb SCSA 1463 * and have the load of fcp (which does scsi_hba_attach_setup) 1464 * to fail. In this case we may get here with a NULL hba. 1465 */ 1466 tran = ddi_get_driver_private(self); 1467 if (tran == NULL) 1468 return (DDI_NOT_WELL_FORMED); 1469 1470 /* 1471 * OBP may create template/stub/wildcard nodes for legacy driver 1472 * loading methods. These nodes have no properties, so we lack the 1473 * addressing properties to initchild them. Hide the node and return 1474 * DDI_NOT_WELL_FORMED. 1475 * 1476 * XXX need ndi_devi_has_properties(dip) type interface? 1477 * 1478 * XXX It would be nice if we could delete these ill formed nodes by 1479 * implementing a DDI_NOT_WELL_FORMED_DELETE return code. This can't 1480 * be done until leadville debug code removes its dependencies 1481 * on the devinfo still being present after a failed ndi_devi_online. 1482 */ 1483 if ((DEVI(child)->devi_hw_prop_ptr == NULL) && 1484 (DEVI(child)->devi_drv_prop_ptr == NULL) && 1485 (DEVI(child)->devi_sys_prop_ptr == NULL)) { 1486 SCSI_HBA_LOG((_LOG(4), NULL, child, 1487 "init failed: no properties")); 1488 return (DDI_NOT_WELL_FORMED); 1489 } 1490 1491 /* get legacy SPI addressing properties */ 1492 sfunc = ddi_prop_get_int(DDI_DEV_T_ANY, child, 1493 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, SCSI_ADDR_PROP_SFUNC, -1); 1494 lun = ddi_prop_get_int(DDI_DEV_T_ANY, child, 1495 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, SCSI_ADDR_PROP_LUN, 0); 1496 if ((tgt = ddi_prop_get_int(DDI_DEV_T_ANY, child, 1497 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, 1498 SCSI_ADDR_PROP_TARGET, -1)) == -1) { 1499 tgt = 0; 1500 /* 1501 * A driver.conf node for merging always has a target= property, 1502 * even if it is just a dummy that does not contain the real 1503 * target address. However drivers that register devids may 1504 * create stub driver.conf nodes without a target= property so 1505 * that pathological devid resolution works. 1506 */ 1507 if (ndi_dev_is_persistent_node(child) == 0) { 1508 SCSI_HBA_LOG((_LOG(4), NULL, child, 1509 "init failed: stub .conf node")); 1510 return (DDI_NOT_WELL_FORMED); 1511 } 1512 } 1513 1514 /* 1515 * The scsi_address structure may not specify all the addressing 1516 * information. For an old HBA that doesn't support tran_get_name 1517 * (most pre-SCSI-3 HBAs) the scsi_address structure is still used, 1518 * so the target property must exist and the LUN must be < 256. 1519 */ 1520 if ((tran->tran_get_name == NULL) && 1521 ((tgt >= USHRT_MAX) || (lun >= 256))) { 1522 SCSI_HBA_LOG((_LOG(1), NULL, child, 1523 "init failed: illegal/missing properties")); 1524 return (DDI_NOT_WELL_FORMED); 1525 } 1526 1527 /* 1528 * We need to initialize a fair amount of our environment to invoke 1529 * tran_get_name (via scsi_hba_name_child and scsi_get_name) to 1530 * produce the "@addr" name from addressing properties. Allocate and 1531 * initialize scsi device structure. 1532 */ 1533 sd = kmem_zalloc(sizeof (struct scsi_device), KM_SLEEP); 1534 mutex_init(&sd->sd_mutex, NULL, MUTEX_DRIVER, NULL); 1535 sd->sd_dev = child; 1536 sd->sd_pathinfo = NULL; 1537 ddi_set_driver_private(child, sd); 1538 1539 if (tran->tran_hba_flags & SCSI_HBA_ADDR_COMPLEX) { 1540 /* 1541 * For a SCSI_HBA_ADDR_COMPLEX transport we store a pointer to 1542 * scsi_device in the scsi_address structure. This allows an 1543 * HBA driver to find its per-scsi_device private data 1544 * (accessable to the HBA given just the scsi_address by using 1545 * scsi_address_device(9F)/scsi_device_hba_private_get(9F)). 1546 */ 1547 sd->sd_address.a.a_sd = sd; 1548 tran_clone = NULL; 1549 } else { 1550 /* 1551 * Initialize the scsi_address so that a SCSI-2 target driver 1552 * talking to a SCSI-2 device on a SCSI-3 bus (spi) continues 1553 * to work. We skew the secondary function value so that we 1554 * can tell from the address structure if we are processing 1555 * a secondary function request. 1556 */ 1557 sd->sd_address.a_target = (ushort_t)tgt; 1558 sd->sd_address.a_lun = (uchar_t)lun; 1559 if (sfunc == -1) 1560 sd->sd_address.a_sublun = (uchar_t)0; 1561 else 1562 sd->sd_address.a_sublun = (uchar_t)sfunc + 1; 1563 1564 /* 1565 * XXX TODO: apply target/lun limitation logic for SPI 1566 * binding_set. If spi this is based on scsi_options WIDE 1567 * NLUNS some forms of lun limitation are based on the 1568 * device @lun 0 1569 */ 1570 1571 /* 1572 * Deprecated: Use SCSI_HBA_ADDR_COMPLEX: 1573 * Clone transport structure if requested. Cloning allows 1574 * an HBA to maintain target-specific information if 1575 * necessary, such as target addressing information that 1576 * does not adhere to the scsi_address structure format. 1577 */ 1578 if (tran->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { 1579 tran_clone = kmem_alloc( 1580 sizeof (scsi_hba_tran_t), KM_SLEEP); 1581 bcopy((caddr_t)tran, 1582 (caddr_t)tran_clone, sizeof (scsi_hba_tran_t)); 1583 tran = tran_clone; 1584 tran->tran_sd = sd; 1585 } else { 1586 tran_clone = NULL; 1587 ASSERT(tran->tran_sd == NULL); 1588 } 1589 } 1590 1591 /* establish scsi_address pointer to the HBA's tran structure */ 1592 sd->sd_address.a_hba_tran = tran; 1593 1594 /* 1595 * This is a grotty hack that allows direct-access (non-scsa) drivers 1596 * (like chs, ata, and mlx which all make cmdk children) to put its 1597 * own vector in the 'a_hba_tran' field. When all the drivers that do 1598 * this are fixed, please remove this hack. 1599 * 1600 * NOTE: This hack is also shows up in the DEVP_TO_TRAN implementation 1601 * in scsi_confsubr.c. 1602 */ 1603 sd->sd_tran_safe = tran; 1604 1605 /* Establish the @addr name of the child. */ 1606 *addr = '\0'; 1607 if (scsi_hba_name_child(child, addr, SCSI_MAXNAMELEN) != DDI_SUCCESS) { 1608 /* 1609 * Some driver.conf files add bogus target properties (relative 1610 * to their nexus representation of target) to their stub 1611 * nodes, causing the check above to not filter them. 1612 */ 1613 SCSI_HBA_LOG((_LOG(3), NULL, child, 1614 "init failed: scsi_busctl_ua call")); 1615 err = DDI_NOT_WELL_FORMED; 1616 goto failure; 1617 } 1618 if (*addr == '\0') { 1619 SCSI_HBA_LOG((_LOG(2), NULL, child, "init failed: ua")); 1620 ndi_devi_set_hidden(child); 1621 err = DDI_NOT_WELL_FORMED; 1622 goto failure; 1623 } 1624 1625 /* set the node @addr string */ 1626 ddi_set_name_addr(child, addr); 1627 1628 /* prevent sibling duplicates */ 1629 dup = ndi_devi_find(self, ddi_node_name(child), addr); 1630 if (dup && (dup != child)) { 1631 SCSI_HBA_LOG((_LOG(4), NULL, child, 1632 "init failed: detected duplicate %p", (void *)dup)); 1633 goto failure; 1634 } 1635 1636 /* call HBA's target init entry point if it exists */ 1637 if (tran->tran_tgt_init != NULL) { 1638 SCSI_HBA_LOG((_LOG(4), NULL, child, "init tran_tgt_init")); 1639 if ((*tran->tran_tgt_init) 1640 (self, child, tran, sd) != DDI_SUCCESS) { 1641 SCSI_HBA_LOG((_LOG(2), NULL, child, 1642 "init failed: tran_tgt_init failed")); 1643 goto failure; 1644 } 1645 } 1646 1647 SCSI_HBA_LOG((_LOG(3), NULL, child, "init successful")); 1648 return (DDI_SUCCESS); 1649 1650 failure: 1651 if (tran_clone) 1652 kmem_free(tran_clone, sizeof (scsi_hba_tran_t)); 1653 mutex_destroy(&sd->sd_mutex); 1654 kmem_free(sd, sizeof (*sd)); 1655 ddi_set_driver_private(child, NULL); 1656 ddi_set_name_addr(child, NULL); 1657 1658 return (err); /* remove the node */ 1659 } 1660 1661 static int 1662 scsi_busctl_uninitchild(dev_info_t *child) 1663 { 1664 dev_info_t *self = ddi_get_parent(child); 1665 scsi_hba_tran_t *tran = ddi_get_driver_private(self); 1666 struct scsi_device *sd = ddi_get_driver_private(child); 1667 scsi_hba_tran_t *tran_clone; 1668 1669 ASSERT(DEVI_BUSY_OWNED(self)); 1670 1671 ASSERT(tran && sd); 1672 if ((tran == NULL) || (sd == NULL)) 1673 return (DDI_FAILURE); 1674 1675 1676 SCSI_HBA_LOG((_LOG(3), NULL, child, "uninit begin")); 1677 1678 if (tran->tran_hba_flags & SCSI_HBA_TRAN_CLONE) { 1679 tran_clone = sd->sd_address.a_hba_tran; 1680 1681 /* ... grotty hack, involving sd_tran_safe, continued. */ 1682 if (tran_clone != sd->sd_tran_safe) { 1683 tran_clone = sd->sd_tran_safe; 1684 #ifdef DEBUG 1685 /* 1686 * Complain so things get fixed and hack can, at 1687 * some point in time, be removed. 1688 */ 1689 SCSI_HBA_LOG((_LOG(WARN), self, NULL, 1690 "'%s' is corrupting a_hba_tran", sd->sd_dev ? 1691 ddi_driver_name(sd->sd_dev) : "unknown_driver")); 1692 #endif /* DEBUG */ 1693 } 1694 1695 ASSERT(tran_clone->tran_hba_flags & SCSI_HBA_TRAN_CLONE); 1696 ASSERT(tran_clone->tran_sd == sd); 1697 tran = tran_clone; 1698 } else { 1699 tran_clone = NULL; 1700 ASSERT(tran->tran_sd == NULL); 1701 } 1702 1703 /* 1704 * To simplify host adapter drivers we guarantee that multiple 1705 * tran_tgt_init(9E) calls of the same unit address are never 1706 * active at the same time. 1707 */ 1708 if (tran->tran_tgt_free) 1709 (*tran->tran_tgt_free) (self, child, tran, sd); 1710 1711 /* 1712 * If a inquiry data is still allocated (by scsi_probe()) we 1713 * free the allocation here. This keeps scsi_inq valid for the 1714 * same duration as the corresponding inquiry properties. It 1715 * also allows a tran_tgt_init() implementation that establishes 1716 * sd_inq (common/io/dktp/controller/ata/ata_disk.c) to deal 1717 * with deallocation in its tran_tgt_free (setting sd_inq back 1718 * to NULL) without upsetting the framework. 1719 */ 1720 if (sd->sd_inq) { 1721 kmem_free(sd->sd_inq, SUN_INQSIZE); 1722 sd->sd_inq = (struct scsi_inquiry *)NULL; 1723 } 1724 1725 mutex_destroy(&sd->sd_mutex); 1726 if (tran_clone) 1727 kmem_free(tran_clone, sizeof (scsi_hba_tran_t)); 1728 kmem_free(sd, sizeof (*sd)); 1729 1730 ddi_set_driver_private(child, NULL); 1731 SCSI_HBA_LOG((_LOG(3), NULL, child, "uninit complete")); 1732 ddi_set_name_addr(child, NULL); 1733 return (DDI_SUCCESS); 1734 } 1735 1736 static int 1737 iport_busctl_reportdev(dev_info_t *child) 1738 { 1739 dev_info_t *self = ddi_get_parent(child); 1740 char *iport; 1741 1742 1743 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child, 1744 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 1745 "scsi-iport", &iport) != DDI_SUCCESS) 1746 return (DDI_FAILURE); 1747 1748 SCSI_HBA_LOG((_LOG_NF(CONT), "?%s%d at %s%d: iport %s\n", 1749 ddi_driver_name(child), ddi_get_instance(child), 1750 ddi_driver_name(self), ddi_get_instance(self), 1751 iport)); 1752 1753 ddi_prop_free(iport); 1754 return (DDI_SUCCESS); 1755 } 1756 1757 /* uninitchild SCSA iport 'child' node */ 1758 static int 1759 iport_busctl_uninitchild(dev_info_t *child) 1760 { 1761 ddi_set_name_addr(child, NULL); 1762 return (DDI_SUCCESS); 1763 } 1764 1765 /* initchild SCSA iport 'child' node */ 1766 static int 1767 iport_busctl_initchild(dev_info_t *child) 1768 { 1769 dev_info_t *self = ddi_get_parent(child); 1770 dev_info_t *dup = NULL; 1771 char addr[SCSI_MAXNAMELEN]; 1772 char *iport; 1773 1774 1775 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child, 1776 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, 1777 "scsi-iport", &iport) != DDI_SUCCESS) { 1778 return (DDI_NOT_WELL_FORMED); 1779 } 1780 1781 (void) snprintf(addr, SCSI_MAXNAMELEN, "%s", iport); 1782 ddi_prop_free(iport); 1783 1784 1785 /* set the node @addr string */ 1786 ddi_set_name_addr(child, addr); 1787 1788 /* Prevent duplicate nodes. */ 1789 dup = ndi_devi_find(self, ddi_node_name(child), addr); 1790 if (dup && (dup != child)) { 1791 ddi_set_name_addr(child, NULL); 1792 return (DDI_FAILURE); 1793 } 1794 1795 return (DDI_SUCCESS); 1796 } 1797 1798 /* Uninitialize scsi_device flavor of transport on SCSA iport 'child' node. */ 1799 static void 1800 iport_postdetach_tran_scsi_device(dev_info_t *child) 1801 { 1802 scsi_hba_tran_t *tran; 1803 1804 tran = ndi_flavorv_get(child, SCSA_FLAVOR_SCSI_DEVICE); 1805 if (tran == NULL) 1806 return; 1807 1808 scsa_tran_teardown(child, tran); 1809 scsa_nexus_teardown(child, tran); 1810 1811 ndi_flavorv_set(child, SCSA_FLAVOR_SCSI_DEVICE, NULL); 1812 scsi_hba_tran_free(tran); 1813 } 1814 1815 /* 1816 * Initialize scsi_device flavor of transport on SCSA iport 'child' node. 1817 * 1818 * NOTE: Given our past history with SCSI_HBA_TRAN_CLONE (structure-copy tran 1819 * per scsi_device), using structure-copy of tran at the iport level should 1820 * not be a problem (the most risky thing is likely tran_hba_dip). 1821 */ 1822 static void 1823 iport_preattach_tran_scsi_device(dev_info_t *child) 1824 { 1825 dev_info_t *hba = ddi_get_parent(child); 1826 scsi_hba_tran_t *htran; 1827 scsi_hba_tran_t *tran; 1828 1829 /* parent HBA node scsi_device tran is required */ 1830 htran = ndi_flavorv_get(hba, SCSA_FLAVOR_SCSI_DEVICE); 1831 ASSERT(htran != NULL); 1832 if (htran == NULL) 1833 return; 1834 1835 /* Allocate iport child's scsi_device transport vector */ 1836 tran = scsi_hba_tran_alloc(child, SCSI_HBA_CANSLEEP); 1837 if (tran == NULL) 1838 return; 1839 1840 /* Structure-copy scsi_device transport of HBA to iport. */ 1841 *tran = *htran; 1842 1843 /* 1844 * Reset scsi_device transport fields not shared with the 1845 * parent, and not established below. 1846 */ 1847 tran->tran_open_flag = 0; 1848 tran->tran_hba_private = NULL; 1849 tran->tran_iport_dip = child; 1850 1851 /* Clear SCSI_HBA_SCSA flags (except TA) */ 1852 tran->tran_hba_flags &= ~SCSI_HBA_SCSA_FM; /* clear parent state */ 1853 tran->tran_hba_flags |= SCSI_HBA_SCSA_TA; 1854 tran->tran_hba_flags &= ~SCSI_HBA_HBA; /* never HBA */ 1855 1856 /* Establish flavor of transport (and ddi_get_driver_private()) */ 1857 ndi_flavorv_set(child, SCSA_FLAVOR_SCSI_DEVICE, tran); 1858 1859 /* Setup iport node */ 1860 if ((scsa_nexus_setup(child, tran) != DDI_SUCCESS) || 1861 (scsa_tran_setup(child, tran) != DDI_SUCCESS)) { 1862 iport_postdetach_tran_scsi_device(child); 1863 } 1864 } 1865 1866 /* Uninitialize smp_device flavor of transport on SCSA iport 'child' node. */ 1867 static void 1868 iport_postdetach_tran_smp_device(dev_info_t *child) 1869 { 1870 sas_hba_tran_t *tran; 1871 1872 tran = ndi_flavorv_get(child, SCSA_FLAVOR_SMP); 1873 if (tran == NULL) 1874 return; 1875 1876 ndi_flavorv_set(child, SCSA_FLAVOR_SMP, NULL); 1877 sas_hba_tran_free(tran); 1878 } 1879 1880 /* Initialize smp_device flavor of transport on SCSA iport 'child' node. */ 1881 static void 1882 iport_preattach_tran_smp_device(dev_info_t *child) 1883 { 1884 dev_info_t *hba = ddi_get_parent(child); 1885 sas_hba_tran_t *htran; 1886 sas_hba_tran_t *tran; 1887 1888 /* parent HBA node smp_device tran is optional */ 1889 htran = ndi_flavorv_get(hba, SCSA_FLAVOR_SMP); 1890 if (htran == NULL) { 1891 ndi_flavorv_set(child, SCSA_FLAVOR_SMP, NULL); 1892 return; 1893 } 1894 1895 /* Allocate iport child's smp_device transport vector */ 1896 tran = sas_hba_tran_alloc(child, 0); 1897 1898 /* Structure-copy smp_device transport of HBA to iport. */ 1899 *tran = *htran; 1900 1901 /* Establish flavor of transport */ 1902 ndi_flavorv_set(child, SCSA_FLAVOR_SMP, tran); 1903 } 1904 1905 1906 /* 1907 * Generic bus_ctl operations for SCSI HBA's, 1908 * hiding the busctl interface from the HBA. 1909 */ 1910 /*ARGSUSED*/ 1911 static int 1912 scsi_hba_bus_ctl( 1913 dev_info_t *self, 1914 dev_info_t *child, 1915 ddi_ctl_enum_t op, 1916 void *arg, 1917 void *result) 1918 { 1919 int child_flavor = 0; 1920 int val; 1921 ddi_dma_attr_t *attr; 1922 scsi_hba_tran_t *tran; 1923 struct attachspec *as; 1924 struct detachspec *ds; 1925 1926 /* For some ops, child is 'arg'. */ 1927 if ((op == DDI_CTLOPS_INITCHILD) || (op == DDI_CTLOPS_UNINITCHILD)) 1928 child = (dev_info_t *)arg; 1929 1930 /* Determine the flavor of the child: smp .vs. scsi */ 1931 child_flavor = ndi_flavor_get(child); 1932 1933 switch (op) { 1934 case DDI_CTLOPS_INITCHILD: 1935 switch (child_flavor) { 1936 case SCSA_FLAVOR_IPORT: 1937 return (iport_busctl_initchild(child)); 1938 case SCSA_FLAVOR_SMP: 1939 return (smp_busctl_initchild(child)); 1940 default: 1941 return (scsi_busctl_initchild(child)); 1942 } 1943 case DDI_CTLOPS_UNINITCHILD: 1944 switch (child_flavor) { 1945 case SCSA_FLAVOR_IPORT: 1946 return (iport_busctl_uninitchild(child)); 1947 case SCSA_FLAVOR_SMP: 1948 return (smp_busctl_uninitchild(child)); 1949 default: 1950 return (scsi_busctl_uninitchild(child)); 1951 } 1952 case DDI_CTLOPS_REPORTDEV: 1953 switch (child_flavor) { 1954 case SCSA_FLAVOR_IPORT: 1955 return (iport_busctl_reportdev(child)); 1956 case SCSA_FLAVOR_SMP: 1957 return (smp_busctl_reportdev(child)); 1958 default: 1959 return (scsi_busctl_reportdev(child)); 1960 } 1961 case DDI_CTLOPS_ATTACH: 1962 as = (struct attachspec *)arg; 1963 1964 if (child_flavor != SCSA_FLAVOR_IPORT) 1965 return (DDI_SUCCESS); 1966 1967 /* iport processing */ 1968 if (as->when == DDI_PRE) { 1969 /* setup pre attach(9E) */ 1970 iport_preattach_tran_scsi_device(child); 1971 iport_preattach_tran_smp_device(child); 1972 } else if ((as->when == DDI_POST) && 1973 (as->result != DDI_SUCCESS)) { 1974 /* cleanup if attach(9E) failed */ 1975 iport_postdetach_tran_scsi_device(child); 1976 iport_postdetach_tran_smp_device(child); 1977 } 1978 return (DDI_SUCCESS); 1979 case DDI_CTLOPS_DETACH: 1980 ds = (struct detachspec *)arg; 1981 1982 if (child_flavor != SCSA_FLAVOR_IPORT) 1983 return (DDI_SUCCESS); 1984 1985 /* iport processing */ 1986 if ((ds->when == DDI_POST) && 1987 (ds->result == DDI_SUCCESS)) { 1988 /* cleanup if detach(9E) was successful */ 1989 iport_postdetach_tran_scsi_device(child); 1990 iport_postdetach_tran_smp_device(child); 1991 } 1992 return (DDI_SUCCESS); 1993 case DDI_CTLOPS_IOMIN: 1994 tran = ddi_get_driver_private(self); 1995 ASSERT(tran); 1996 if (tran == NULL) 1997 return (DDI_FAILURE); 1998 1999 /* 2000 * The 'arg' value of nonzero indicates 'streaming' 2001 * mode. If in streaming mode, pick the largest 2002 * of our burstsizes available and say that that 2003 * is our minimum value (modulo what minxfer is). 2004 */ 2005 attr = &tran->tran_dma_attr; 2006 val = *((int *)result); 2007 val = maxbit(val, attr->dma_attr_minxfer); 2008 *((int *)result) = maxbit(val, ((intptr_t)arg ? 2009 (1<<ddi_ffs(attr->dma_attr_burstsizes)-1) : 2010 (1<<(ddi_fls(attr->dma_attr_burstsizes)-1)))); 2011 2012 return (ddi_ctlops(self, child, op, arg, result)); 2013 2014 case DDI_CTLOPS_SIDDEV: 2015 return (ndi_dev_is_persistent_node(child) ? 2016 DDI_SUCCESS : DDI_FAILURE); 2017 2018 /* XXX these should be handled */ 2019 case DDI_CTLOPS_POWER: 2020 return (DDI_SUCCESS); 2021 2022 /* 2023 * These ops correspond to functions that "shouldn't" be called 2024 * by a SCSI target driver. So we whine when we're called. 2025 */ 2026 case DDI_CTLOPS_DMAPMAPC: 2027 case DDI_CTLOPS_REPORTINT: 2028 case DDI_CTLOPS_REGSIZE: 2029 case DDI_CTLOPS_NREGS: 2030 case DDI_CTLOPS_SLAVEONLY: 2031 case DDI_CTLOPS_AFFINITY: 2032 case DDI_CTLOPS_POKE: 2033 case DDI_CTLOPS_PEEK: 2034 SCSI_HBA_LOG((_LOG(WARN), self, NULL, "invalid op (%d)", op)); 2035 return (DDI_FAILURE); 2036 2037 /* Everything else we pass up */ 2038 case DDI_CTLOPS_PTOB: 2039 case DDI_CTLOPS_BTOP: 2040 case DDI_CTLOPS_BTOPR: 2041 case DDI_CTLOPS_DVMAPAGESIZE: 2042 default: 2043 return (ddi_ctlops(self, child, op, arg, result)); 2044 } 2045 } 2046 2047 /* 2048 * Private wrapper for scsi_pkt's allocated via scsi_hba_pkt_alloc() 2049 */ 2050 struct scsi_pkt_wrapper { 2051 struct scsi_pkt scsi_pkt; 2052 int pkt_wrapper_magic; 2053 int pkt_wrapper_len; 2054 }; 2055 2056 #if !defined(lint) 2057 _NOTE(SCHEME_PROTECTS_DATA("unique per thread", scsi_pkt_wrapper)) 2058 _NOTE(SCHEME_PROTECTS_DATA("Unshared Data", dev_ops)) 2059 #endif 2060 2061 /* 2062 * Called by an HBA to allocate a scsi_pkt 2063 */ 2064 /*ARGSUSED*/ 2065 struct scsi_pkt * 2066 scsi_hba_pkt_alloc( 2067 dev_info_t *dip, 2068 struct scsi_address *ap, 2069 int cmdlen, 2070 int statuslen, 2071 int tgtlen, 2072 int hbalen, 2073 int (*callback)(caddr_t arg), 2074 caddr_t arg) 2075 { 2076 struct scsi_pkt *pkt; 2077 struct scsi_pkt_wrapper *hba_pkt; 2078 caddr_t p; 2079 int acmdlen, astatuslen, atgtlen, ahbalen; 2080 int pktlen; 2081 2082 /* Sanity check */ 2083 if (callback != SLEEP_FUNC && callback != NULL_FUNC) 2084 SCSI_HBA_LOG((_LOG(WARN), dip, NULL, 2085 "callback must be SLEEP_FUNC or NULL_FUNC")); 2086 2087 /* 2088 * Round up so everything gets allocated on long-word boundaries 2089 */ 2090 acmdlen = ROUNDUP(cmdlen); 2091 astatuslen = ROUNDUP(statuslen); 2092 atgtlen = ROUNDUP(tgtlen); 2093 ahbalen = ROUNDUP(hbalen); 2094 pktlen = sizeof (struct scsi_pkt_wrapper) + 2095 acmdlen + astatuslen + atgtlen + ahbalen; 2096 2097 hba_pkt = kmem_zalloc(pktlen, 2098 (callback == SLEEP_FUNC) ? KM_SLEEP : KM_NOSLEEP); 2099 if (hba_pkt == NULL) { 2100 ASSERT(callback == NULL_FUNC); 2101 return (NULL); 2102 } 2103 2104 /* 2105 * Set up our private info on this pkt 2106 */ 2107 hba_pkt->pkt_wrapper_len = pktlen; 2108 hba_pkt->pkt_wrapper_magic = PKT_WRAPPER_MAGIC; /* alloced correctly */ 2109 pkt = &hba_pkt->scsi_pkt; 2110 2111 /* 2112 * Set up pointers to private data areas, cdb, and status. 2113 */ 2114 p = (caddr_t)(hba_pkt + 1); 2115 if (hbalen > 0) { 2116 pkt->pkt_ha_private = (opaque_t)p; 2117 p += ahbalen; 2118 } 2119 if (tgtlen > 0) { 2120 pkt->pkt_private = (opaque_t)p; 2121 p += atgtlen; 2122 } 2123 if (statuslen > 0) { 2124 pkt->pkt_scbp = (uchar_t *)p; 2125 p += astatuslen; 2126 } 2127 if (cmdlen > 0) { 2128 pkt->pkt_cdbp = (uchar_t *)p; 2129 } 2130 2131 /* 2132 * Initialize the pkt's scsi_address 2133 */ 2134 pkt->pkt_address = *ap; 2135 2136 /* 2137 * NB: It may not be safe for drivers, esp target drivers, to depend 2138 * on the following fields being set until all the scsi_pkt 2139 * allocation violations discussed in scsi_pkt.h are all resolved. 2140 */ 2141 pkt->pkt_cdblen = cmdlen; 2142 pkt->pkt_tgtlen = tgtlen; 2143 pkt->pkt_scblen = statuslen; 2144 2145 return (pkt); 2146 } 2147 2148 /* 2149 * Called by an HBA to free a scsi_pkt 2150 */ 2151 /*ARGSUSED*/ 2152 void 2153 scsi_hba_pkt_free( 2154 struct scsi_address *ap, 2155 struct scsi_pkt *pkt) 2156 { 2157 kmem_free(pkt, ((struct scsi_pkt_wrapper *)pkt)->pkt_wrapper_len); 2158 } 2159 2160 /* 2161 * Return 1 if the scsi_pkt used a proper allocator. 2162 * 2163 * The DDI does not allow a driver to allocate it's own scsi_pkt(9S), a 2164 * driver should not have *any* compiled in dependencies on "sizeof (struct 2165 * scsi_pkt)". While this has been the case for many years, a number of 2166 * drivers have still not been fixed. This function can be used to detect 2167 * improperly allocated scsi_pkt structures, and produce messages identifying 2168 * drivers that need to be fixed. 2169 * 2170 * While drivers in violation are being fixed, this function can also 2171 * be used by the framework to detect packets that violated allocation 2172 * rules. 2173 * 2174 * NB: It is possible, but very unlikely, for this code to return a false 2175 * positive (finding correct magic, but for wrong reasons). Careful 2176 * consideration is needed for callers using this interface to condition 2177 * access to newer scsi_pkt fields (those after pkt_reason). 2178 * 2179 * NB: As an aid to minimizing the amount of work involved in 'fixing' legacy 2180 * drivers that violate scsi_*(9S) allocation rules, private 2181 * scsi_pkt_size()/scsi_size_clean() functions are available (see their 2182 * implementation for details). 2183 * 2184 * *** Non-legacy use of scsi_pkt_size() is discouraged. *** 2185 * 2186 * NB: When supporting broken HBA drivers is not longer a concern, this 2187 * code should be removed. 2188 */ 2189 int 2190 scsi_pkt_allocated_correctly(struct scsi_pkt *pkt) 2191 { 2192 struct scsi_pkt_wrapper *hba_pkt = (struct scsi_pkt_wrapper *)pkt; 2193 int magic; 2194 major_t major; 2195 #ifdef DEBUG 2196 int *pspwm, *pspcwm; 2197 2198 /* 2199 * We are getting scsi packets from two 'correct' wrapper schemes, 2200 * make sure we are looking at the same place in both to detect 2201 * proper allocation. 2202 */ 2203 pspwm = &((struct scsi_pkt_wrapper *)0)->pkt_wrapper_magic; 2204 pspcwm = &((struct scsi_pkt_cache_wrapper *)0)->pcw_magic; 2205 ASSERT(pspwm == pspcwm); 2206 #endif /* DEBUG */ 2207 2208 2209 /* 2210 * Check to see if driver is scsi_size_clean(), assume it 2211 * is using the scsi_pkt_size() interface everywhere it needs to 2212 * if the driver indicates it is scsi_size_clean(). 2213 */ 2214 major = ddi_driver_major(P_TO_TRAN(pkt)->tran_hba_dip); 2215 if (devnamesp[major].dn_flags & DN_SCSI_SIZE_CLEAN) 2216 return (1); /* ok */ 2217 2218 /* 2219 * Special case crossing a page boundary. If the scsi_pkt was not 2220 * allocated correctly, then across a page boundary we have a 2221 * fault hazard. 2222 */ 2223 if ((((uintptr_t)(&hba_pkt->scsi_pkt)) & MMU_PAGEMASK) == 2224 (((uintptr_t)(&hba_pkt->pkt_wrapper_magic)) & MMU_PAGEMASK)) { 2225 /* fastpath, no cross-page hazard */ 2226 magic = hba_pkt->pkt_wrapper_magic; 2227 } else { 2228 /* add protection for cross-page hazard */ 2229 if (ddi_peek32((dev_info_t *)NULL, 2230 &hba_pkt->pkt_wrapper_magic, &magic) == DDI_FAILURE) { 2231 return (0); /* violation */ 2232 } 2233 } 2234 2235 /* properly allocated packet always has correct magic */ 2236 return ((magic == PKT_WRAPPER_MAGIC) ? 1 : 0); 2237 } 2238 2239 /* 2240 * Private interfaces to simplify conversion of legacy drivers so they don't 2241 * depend on scsi_*(9S) size. Instead of using these private interface, HBA 2242 * drivers should use DDI sanctioned allocation methods: 2243 * 2244 * scsi_pkt Use scsi_hba_pkt_alloc(9F), or implement 2245 * tran_setup_pkt(9E). 2246 * 2247 * scsi_device You are doing something strange/special, a scsi_device 2248 * structure should only be allocated by scsi_hba.c 2249 * initchild code or scsi_vhci.c code. 2250 * 2251 * scsi_hba_tran Use scsi_hba_tran_alloc(9F). 2252 */ 2253 size_t 2254 scsi_pkt_size() 2255 { 2256 return (sizeof (struct scsi_pkt)); 2257 } 2258 2259 size_t 2260 scsi_hba_tran_size() 2261 { 2262 return (sizeof (scsi_hba_tran_t)); 2263 } 2264 2265 size_t 2266 scsi_device_size() 2267 { 2268 return (sizeof (struct scsi_device)); 2269 } 2270 2271 /* 2272 * Legacy compliance to scsi_pkt(9S) allocation rules through use of 2273 * scsi_pkt_size() is detected by the 'scsi-size-clean' driver.conf property 2274 * or an HBA driver calling to scsi_size_clean() from attach(9E). A driver 2275 * developer should only indicate that a legacy driver is clean after using 2276 * SCSI_SIZE_CLEAN_VERIFY to ensure compliance (see scsi_pkt.h). 2277 */ 2278 void 2279 scsi_size_clean(dev_info_t *dip) 2280 { 2281 major_t major; 2282 struct devnames *dnp; 2283 2284 ASSERT(dip); 2285 major = ddi_driver_major(dip); 2286 ASSERT(major < devcnt); 2287 if (major >= devcnt) { 2288 SCSI_HBA_LOG((_LOG(WARN), dip, NULL, 2289 "scsi_pkt_size: bogus major: %d", major)); 2290 return; 2291 } 2292 2293 /* Set DN_SCSI_SIZE_CLEAN flag in dn_flags. */ 2294 dnp = &devnamesp[major]; 2295 if ((dnp->dn_flags & DN_SCSI_SIZE_CLEAN) == 0) { 2296 LOCK_DEV_OPS(&dnp->dn_lock); 2297 dnp->dn_flags |= DN_SCSI_SIZE_CLEAN; 2298 UNLOCK_DEV_OPS(&dnp->dn_lock); 2299 } 2300 } 2301 2302 2303 /* 2304 * Called by an HBA to map strings to capability indices 2305 */ 2306 int 2307 scsi_hba_lookup_capstr( 2308 char *capstr) 2309 { 2310 /* 2311 * Capability strings: only add entries to mask the legacy 2312 * '_' vs. '-' misery. All new capabilities should use '-', 2313 * and be captured be added to SCSI_CAP_ASCII. 2314 */ 2315 static struct cap_strings { 2316 char *cap_string; 2317 int cap_index; 2318 } cap_strings[] = { 2319 { "dma_max", SCSI_CAP_DMA_MAX }, 2320 { "msg_out", SCSI_CAP_MSG_OUT }, 2321 { "wide_xfer", SCSI_CAP_WIDE_XFER }, 2322 { NULL, 0 } 2323 }; 2324 static char *cap_ascii[] = SCSI_CAP_ASCII; 2325 char **cap; 2326 int i; 2327 struct cap_strings *cp; 2328 2329 for (cap = cap_ascii, i = 0; *cap != NULL; cap++, i++) 2330 if (strcmp(*cap, capstr) == 0) 2331 return (i); 2332 2333 for (cp = cap_strings; cp->cap_string != NULL; cp++) 2334 if (strcmp(cp->cap_string, capstr) == 0) 2335 return (cp->cap_index); 2336 2337 return (-1); 2338 } 2339 2340 /* 2341 * Called by an HBA to determine if the system is in 'panic' state. 2342 */ 2343 int 2344 scsi_hba_in_panic() 2345 { 2346 return (panicstr != NULL); 2347 } 2348 2349 /* 2350 * If a SCSI target driver attempts to mmap memory, 2351 * the buck stops here. 2352 */ 2353 /*ARGSUSED*/ 2354 static int 2355 scsi_hba_map_fault( 2356 dev_info_t *dip, 2357 dev_info_t *child, 2358 struct hat *hat, 2359 struct seg *seg, 2360 caddr_t addr, 2361 struct devpage *dp, 2362 pfn_t pfn, 2363 uint_t prot, 2364 uint_t lock) 2365 { 2366 return (DDI_FAILURE); 2367 } 2368 2369 static int 2370 scsi_hba_get_eventcookie( 2371 dev_info_t *self, 2372 dev_info_t *child, 2373 char *name, 2374 ddi_eventcookie_t *eventp) 2375 { 2376 scsi_hba_tran_t *tran; 2377 2378 tran = ddi_get_driver_private(self); 2379 if (tran->tran_get_eventcookie && 2380 ((*tran->tran_get_eventcookie)(self, 2381 child, name, eventp) == DDI_SUCCESS)) { 2382 return (DDI_SUCCESS); 2383 } 2384 2385 return (ndi_busop_get_eventcookie(self, child, name, eventp)); 2386 } 2387 2388 static int 2389 scsi_hba_add_eventcall( 2390 dev_info_t *self, 2391 dev_info_t *child, 2392 ddi_eventcookie_t event, 2393 void (*callback)( 2394 dev_info_t *self, 2395 ddi_eventcookie_t event, 2396 void *arg, 2397 void *bus_impldata), 2398 void *arg, 2399 ddi_callback_id_t *cb_id) 2400 { 2401 scsi_hba_tran_t *tran; 2402 2403 tran = ddi_get_driver_private(self); 2404 if (tran->tran_add_eventcall && 2405 ((*tran->tran_add_eventcall)(self, child, 2406 event, callback, arg, cb_id) == DDI_SUCCESS)) { 2407 return (DDI_SUCCESS); 2408 } 2409 2410 return (DDI_FAILURE); 2411 } 2412 2413 static int 2414 scsi_hba_remove_eventcall(dev_info_t *self, ddi_callback_id_t cb_id) 2415 { 2416 scsi_hba_tran_t *tran; 2417 ASSERT(cb_id); 2418 2419 tran = ddi_get_driver_private(self); 2420 if (tran->tran_remove_eventcall && 2421 ((*tran->tran_remove_eventcall)( 2422 self, cb_id) == DDI_SUCCESS)) { 2423 return (DDI_SUCCESS); 2424 } 2425 2426 return (DDI_FAILURE); 2427 } 2428 2429 static int 2430 scsi_hba_post_event( 2431 dev_info_t *self, 2432 dev_info_t *child, 2433 ddi_eventcookie_t event, 2434 void *bus_impldata) 2435 { 2436 scsi_hba_tran_t *tran; 2437 2438 tran = ddi_get_driver_private(self); 2439 if (tran->tran_post_event && 2440 ((*tran->tran_post_event)(self, 2441 child, event, bus_impldata) == DDI_SUCCESS)) { 2442 return (DDI_SUCCESS); 2443 } 2444 2445 return (DDI_FAILURE); 2446 } 2447 2448 /* 2449 * Default getinfo(9e) for scsi_hba 2450 */ 2451 /* ARGSUSED */ 2452 static int 2453 scsi_hba_info(dev_info_t *self, ddi_info_cmd_t infocmd, void *arg, 2454 void **result) 2455 { 2456 int error = DDI_SUCCESS; 2457 2458 switch (infocmd) { 2459 case DDI_INFO_DEVT2INSTANCE: 2460 *result = (void *)(intptr_t)(MINOR2INST(getminor((dev_t)arg))); 2461 break; 2462 default: 2463 error = DDI_FAILURE; 2464 } 2465 return (error); 2466 } 2467 2468 /* 2469 * Default open and close routine for scsi_hba 2470 */ 2471 /* ARGSUSED */ 2472 int 2473 scsi_hba_open(dev_t *devp, int flags, int otyp, cred_t *credp) 2474 { 2475 dev_info_t *self; 2476 scsi_hba_tran_t *tran; 2477 int rv = 0; 2478 2479 if (otyp != OTYP_CHR) 2480 return (EINVAL); 2481 2482 if ((self = e_ddi_hold_devi_by_dev(*devp, 0)) == NULL) 2483 return (ENXIO); 2484 2485 tran = ddi_get_driver_private(self); 2486 if (tran == NULL) { 2487 ddi_release_devi(self); 2488 return (ENXIO); 2489 } 2490 2491 /* 2492 * tran_open_flag bit field: 2493 * 0: closed 2494 * 1: shared open by minor at bit position 2495 * 1 at 31st bit: exclusive open 2496 */ 2497 mutex_enter(&(tran->tran_open_lock)); 2498 if (flags & FEXCL) { 2499 if (tran->tran_open_flag != 0) { 2500 rv = EBUSY; /* already open */ 2501 } else { 2502 tran->tran_open_flag = TRAN_OPEN_EXCL; 2503 } 2504 } else { 2505 if (tran->tran_open_flag == TRAN_OPEN_EXCL) { 2506 rv = EBUSY; /* already excl. open */ 2507 } else { 2508 int minor = getminor(*devp) & TRAN_MINOR_MASK; 2509 tran->tran_open_flag |= (1 << minor); 2510 /* 2511 * Ensure that the last framework reserved minor 2512 * is unused. Otherwise, the exclusive open 2513 * mechanism may break. 2514 */ 2515 ASSERT(minor != 31); 2516 } 2517 } 2518 mutex_exit(&(tran->tran_open_lock)); 2519 2520 ddi_release_devi(self); 2521 return (rv); 2522 } 2523 2524 /* ARGSUSED */ 2525 int 2526 scsi_hba_close(dev_t dev, int flag, int otyp, cred_t *credp) 2527 { 2528 dev_info_t *self; 2529 scsi_hba_tran_t *tran; 2530 2531 if (otyp != OTYP_CHR) 2532 return (EINVAL); 2533 2534 if ((self = e_ddi_hold_devi_by_dev(dev, 0)) == NULL) 2535 return (ENXIO); 2536 2537 tran = ddi_get_driver_private(self); 2538 if (tran == NULL) { 2539 ddi_release_devi(self); 2540 return (ENXIO); 2541 } 2542 2543 mutex_enter(&(tran->tran_open_lock)); 2544 if (tran->tran_open_flag == TRAN_OPEN_EXCL) { 2545 tran->tran_open_flag = 0; 2546 } else { 2547 int minor = getminor(dev) & TRAN_MINOR_MASK; 2548 tran->tran_open_flag &= ~(1 << minor); 2549 } 2550 mutex_exit(&(tran->tran_open_lock)); 2551 2552 ddi_release_devi(self); 2553 return (0); 2554 } 2555 2556 /* 2557 * standard ioctl commands for SCSI hotplugging 2558 */ 2559 /* ARGSUSED */ 2560 int 2561 scsi_hba_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *credp, 2562 int *rvalp) 2563 { 2564 dev_info_t *self; 2565 struct devctl_iocdata *dcp = NULL; 2566 dev_info_t *child = NULL; 2567 struct scsi_device *sd; 2568 scsi_hba_tran_t *tran; 2569 uint_t bus_state; 2570 int rv = 0; 2571 int circ; 2572 2573 if ((self = e_ddi_hold_devi_by_dev(dev, 0)) == NULL) { 2574 rv = ENXIO; 2575 goto out; 2576 } 2577 2578 if ((tran = ddi_get_driver_private(self)) == NULL) { 2579 rv = ENXIO; 2580 goto out; 2581 } 2582 2583 /* Ioctls for which the generic implementation suffices. */ 2584 switch (cmd) { 2585 case DEVCTL_DEVICE_GETSTATE: 2586 case DEVCTL_DEVICE_ONLINE: 2587 case DEVCTL_DEVICE_OFFLINE: 2588 case DEVCTL_DEVICE_REMOVE: 2589 case DEVCTL_BUS_GETSTATE: 2590 rv = ndi_devctl_ioctl(self, cmd, arg, mode, 0); 2591 goto out; 2592 } 2593 2594 /* read devctl ioctl data */ 2595 if (ndi_dc_allochdl((void *)arg, &dcp) != NDI_SUCCESS) { 2596 rv = EFAULT; 2597 goto out; 2598 } 2599 2600 /* Ioctls that require child identification */ 2601 switch (cmd) { 2602 case DEVCTL_DEVICE_RESET: 2603 /* child identification from unit-address */ 2604 if (ndi_dc_getname(dcp) == NULL || 2605 ndi_dc_getaddr(dcp) == NULL) { 2606 rv = EINVAL; 2607 goto out; 2608 } 2609 2610 ndi_devi_enter(self, &circ); 2611 child = ndi_devi_find(self, 2612 ndi_dc_getname(dcp), ndi_dc_getaddr(dcp)); 2613 if (child == NULL) { 2614 ndi_devi_exit(self, circ); 2615 rv = ENXIO; 2616 goto out; 2617 } 2618 ndi_hold_devi(child); 2619 ndi_devi_exit(self, circ); 2620 break; 2621 2622 case DEVCTL_BUS_RESETALL: 2623 /* 2624 * Find a child's scsi_address so we can invoke tran_reset 2625 * below. 2626 * 2627 * XXX If no child exists, one may to able to fake a child. 2628 * This will be a enhancement for the future. 2629 * For now, we fall back to BUS_RESET. 2630 * XXX We sould be looking at node state to get one 2631 * that is initialized... 2632 */ 2633 ndi_devi_enter(self, &circ); 2634 child = ddi_get_child(self); 2635 sd = NULL; 2636 while (child) { 2637 /* XXX verify scsi_device 'flavor' of child */ 2638 if ((sd = ddi_get_driver_private(child)) != NULL) { 2639 ndi_hold_devi(child); 2640 break; 2641 } 2642 child = ddi_get_next_sibling(child); 2643 } 2644 ndi_devi_exit(self, circ); 2645 break; 2646 } 2647 2648 switch (cmd) { 2649 case DEVCTL_DEVICE_RESET: 2650 ASSERT(child); 2651 if (tran->tran_reset == NULL) 2652 rv = ENOTSUP; 2653 else { 2654 sd = ddi_get_driver_private(child); 2655 /* XXX verify scsi_device 'flavor' of child */ 2656 if ((sd == NULL) || 2657 (tran->tran_reset(&sd->sd_address, 2658 RESET_TARGET) != 1)) 2659 rv = EIO; 2660 } 2661 break; 2662 2663 case DEVCTL_BUS_QUIESCE: 2664 if ((ndi_get_bus_state(self, &bus_state) == NDI_SUCCESS) && 2665 (bus_state == BUS_QUIESCED)) 2666 rv = EALREADY; 2667 else if (tran->tran_quiesce == NULL) 2668 rv = ENOTSUP; 2669 else if ((*tran->tran_quiesce)(self) != 0) 2670 rv = EIO; 2671 else 2672 (void) ndi_set_bus_state(self, BUS_QUIESCED); 2673 break; 2674 2675 case DEVCTL_BUS_UNQUIESCE: 2676 if ((ndi_get_bus_state(self, &bus_state) == NDI_SUCCESS) && 2677 (bus_state == BUS_ACTIVE)) 2678 rv = EALREADY; 2679 else if (tran->tran_unquiesce == NULL) 2680 rv = ENOTSUP; 2681 else if ((*tran->tran_unquiesce)(self) != 0) 2682 rv = EIO; 2683 else 2684 (void) ndi_set_bus_state(self, BUS_ACTIVE); 2685 break; 2686 2687 case DEVCTL_BUS_RESET: 2688 if (tran->tran_bus_reset == NULL) 2689 rv = ENOTSUP; 2690 else if ((*tran->tran_bus_reset)(self, RESET_BUS) != 1) 2691 rv = EIO; 2692 break; 2693 2694 case DEVCTL_BUS_RESETALL: 2695 if (tran->tran_reset == NULL) { 2696 rv = ENOTSUP; 2697 } else { 2698 if (sd) { 2699 if ((*tran->tran_reset) 2700 (&sd->sd_address, RESET_ALL) != 1) 2701 rv = EIO; 2702 } else { 2703 if ((tran->tran_bus_reset == NULL) || 2704 ((*tran->tran_bus_reset) 2705 (self, RESET_BUS) != 1)) 2706 rv = EIO; 2707 } 2708 } 2709 break; 2710 2711 case DEVCTL_BUS_CONFIGURE: 2712 if (ndi_devi_config(self, NDI_DEVFS_CLEAN| 2713 NDI_DEVI_PERSIST|NDI_CONFIG_REPROBE) != NDI_SUCCESS) { 2714 rv = EIO; 2715 } 2716 break; 2717 2718 case DEVCTL_BUS_UNCONFIGURE: 2719 if (ndi_devi_unconfig(self, 2720 NDI_DEVI_REMOVE|NDI_DEVFS_CLEAN) != NDI_SUCCESS) { 2721 rv = EBUSY; 2722 } 2723 break; 2724 2725 default: 2726 rv = ENOTTY; 2727 } 2728 2729 out: if (child) 2730 ndi_rele_devi(child); 2731 if (dcp) 2732 ndi_dc_freehdl(dcp); 2733 if (self) 2734 ddi_release_devi(self); 2735 return (rv); 2736 } 2737 2738 /*ARGSUSED*/ 2739 static int 2740 scsi_hba_fm_init_child(dev_info_t *self, dev_info_t *child, int cap, 2741 ddi_iblock_cookie_t *ibc) 2742 { 2743 scsi_hba_tran_t *tran = ddi_get_driver_private(self); 2744 2745 return (tran ? tran->tran_fm_capable : scsi_fm_capable); 2746 } 2747 2748 static int 2749 scsi_hba_bus_power(dev_info_t *self, void *impl_arg, pm_bus_power_op_t op, 2750 void *arg, void *result) 2751 { 2752 scsi_hba_tran_t *tran; 2753 2754 tran = ddi_get_driver_private(self); 2755 if (tran && tran->tran_bus_power) { 2756 return (tran->tran_bus_power(self, impl_arg, 2757 op, arg, result)); 2758 } 2759 2760 return (pm_busop_bus_power(self, impl_arg, op, arg, result)); 2761 } 2762 2763 /* 2764 * Return the lun from an address string. Either the lun is after the 2765 * first ',' or the entire addr is the lun. Return SCSI_LUN64_ILLEGAL 2766 * if the format is incorrect. 2767 * 2768 * If the addr specified has incorrect syntax (busconfig one of 2769 * bogus /devices path) then scsi_addr_to_lun64 can return SCSI_LUN64_ILLEGAL. 2770 */ 2771 scsi_lun64_t 2772 scsi_addr_to_lun64(char *addr) 2773 { 2774 scsi_lun64_t lun64; 2775 char *s; 2776 int i; 2777 2778 if (addr) { 2779 s = strchr(addr, ','); /* "addr,lun[,sfunc]" */ 2780 if (s) 2781 s++; /* skip ',' */ 2782 else 2783 s = addr; /* "lun" */ 2784 2785 for (lun64 = 0, i = 0; *s && (i < 16); s++, i++) { 2786 if (*s >= '0' && *s <= '9') 2787 lun64 = (lun64 << 4) + (*s - '0'); 2788 else if (*s >= 'A' && *s <= 'F') 2789 lun64 = (lun64 << 4) + 10 + (*s - 'A'); 2790 else if (*s >= 'a' && *s <= 'f') 2791 lun64 = (lun64 << 4) + 10 + (*s - 'a'); 2792 else 2793 break; 2794 } 2795 if (*s && (*s != ',')) /* addr,lun[,sfunc] is OK */ 2796 lun64 = SCSI_LUN64_ILLEGAL; 2797 } else 2798 lun64 = SCSI_LUN64_ILLEGAL; 2799 2800 if (lun64 == SCSI_LUN64_ILLEGAL) 2801 SCSI_HBA_LOG((_LOG(2), NULL, NULL, 2802 "addr_to_lun64 %s lun %" PRIlun64, 2803 addr ? addr : "NULL", lun64)); 2804 return (lun64); 2805 } 2806 2807 /* 2808 * Convert scsi ascii string data to NULL terminated (semi) legal IEEE 1275 2809 * "compatible" (name) property form. 2810 * 2811 * For ASCII INQUIRY data, a one-way conversion algorithm is needed to take 2812 * SCSI_ASCII (20h - 7Eh) to a 1275-like compatible form. The 1275 spec allows 2813 * letters, digits, one ",", and ". _ + -", all limited by a maximum 31 2814 * character length. Since ", ." are used as separators in the compatible 2815 * string itself, they are converted to "_". All SCSI_ASCII characters that 2816 * are illegal in 1275, as well as any illegal SCSI_ASCII characters 2817 * encountered, are converted to "_". To reduce length, trailing blanks are 2818 * trimmed from SCSI_ASCII fields prior to conversion. 2819 * 2820 * Example: SCSI_ASCII "ST32550W SUN2.1G" -> "ST32550W_SUN2_1G" 2821 * 2822 * NOTE: the 1275 string form is always less than or equal to the scsi form. 2823 */ 2824 static char * 2825 string_scsi_to_1275(char *s_1275, char *s_scsi, int len) 2826 { 2827 (void) strncpy(s_1275, s_scsi, len); 2828 s_1275[len--] = '\0'; 2829 2830 while (len >= 0) { 2831 if (s_1275[len] == ' ') 2832 s_1275[len--] = '\0'; /* trim trailing " " */ 2833 else 2834 break; 2835 } 2836 2837 while (len >= 0) { 2838 if (((s_1275[len] >= 'a') && (s_1275[len] <= 'z')) || 2839 ((s_1275[len] >= 'A') && (s_1275[len] <= 'Z')) || 2840 ((s_1275[len] >= '0') && (s_1275[len] <= '9')) || 2841 (s_1275[len] == '_') || 2842 (s_1275[len] == '+') || 2843 (s_1275[len] == '-')) 2844 len--; /* legal 1275 */ 2845 else 2846 s_1275[len--] = '_'; /* illegal SCSI_ASCII | 1275 */ 2847 } 2848 2849 return (s_1275); 2850 } 2851 2852 /* 2853 * Given the inquiry data, binding_set, and dtype_node for a scsi device, 2854 * return the nodename and compatible property for the device. The "compatible" 2855 * concept comes from IEEE-1275. The compatible information is returned is in 2856 * the correct form for direct use defining the "compatible" string array 2857 * property. Internally, "compatible" is also used to determine the nodename 2858 * to return. 2859 * 2860 * This function is provided as a separate entry point for use by drivers that 2861 * currently issue their own non-SCSA inquiry command and perform their own 2862 * node creation based their own private compiled in tables. Converting these 2863 * drivers to use this interface provides a quick easy way of obtaining 2864 * consistency as well as the flexibility associated with the 1275 techniques. 2865 * 2866 * The dtype_node is passed as a separate argument (instead of having the 2867 * implementation use inq_dtype). It indicates that information about 2868 * a secondary function embedded service should be produced. 2869 * 2870 * Callers must always use scsi_hba_nodename_compatible_free, even if 2871 * *nodenamep is null, to free the nodename and compatible information 2872 * when done. 2873 * 2874 * If a nodename can't be determined then **compatiblep will point to a 2875 * diagnostic string containing all the compatible forms. 2876 * 2877 * NOTE: some compatible strings may violate the 31 character restriction 2878 * imposed by IEEE-1275. This is not a problem because Solaris does not care 2879 * about this 31 character limit. 2880 * 2881 * Each compatible form belongs to a form-group. The form-groups currently 2882 * defined are generic ("scsiclass"), binding-set ("scsa.b"), and failover 2883 * ("scsa.f"). 2884 * 2885 * The following compatible forms, in high to low precedence 2886 * order, are defined for SCSI target device nodes. 2887 * 2888 * scsiclass,DDEEFFF.vVVVVVVVV.pPPPPPPPPPPPPPPPP.rRRRR (1 *1&2) 2889 * scsiclass,DDEE.vVVVVVVVV.pPPPPPPPPPPPPPPPP.rRRRR (2 *1) 2890 * scsiclass,DDFFF.vVVVVVVVV.pPPPPPPPPPPPPPPPP.rRRRR (3 *2) 2891 * scsiclass,DD.vVVVVVVVV.pPPPPPPPPPPPPPPPP.rRRRR (4) 2892 * scsiclass,DDEEFFF.vVVVVVVVV.pPPPPPPPPPPPPPPPP (5 *1&2) 2893 * scsiclass,DDEE.vVVVVVVVV.pPPPPPPPPPPPPPPPP (6 *1) 2894 * scsiclass,DDFFF.vVVVVVVVV.pPPPPPPPPPPPPPPPP (7 *2) 2895 * scsiclass,DD.vVVVVVVVV.pPPPPPPPPPPPPPPPP (8) 2896 * scsa,DD.bBBBBBBBB (8.5 *3) 2897 * scsiclass,DDEEFFF (9 *1&2) 2898 * scsiclass,DDEE (10 *1) 2899 * scsiclass,DDFFF (11 *2) 2900 * scsiclass,DD (12) 2901 * scsa.fFFF (12.5 *4) 2902 * scsiclass (13) 2903 * 2904 * *1 only produced on a secondary function node 2905 * *2 only produced when generic form-group flags exist. 2906 * *3 only produced when binding-set form-group legacy support is needed 2907 * *4 only produced when failover form-group flags exist. 2908 * 2909 * where: 2910 * 2911 * v is the letter 'v'. Denotest the 2912 * beginning of VVVVVVVV. 2913 * 2914 * VVVVVVVV Translated scsi_vendor. 2915 * 2916 * p is the letter 'p'. Denotes the 2917 * beginning of PPPPPPPPPPPPPPPP. 2918 * 2919 * PPPPPPPPPPPPPPPP Translated scsi_product. 2920 * 2921 * r is the letter 'r'. Denotes the 2922 * beginning of RRRR. 2923 * 2924 * RRRR Translated scsi_revision. 2925 * 2926 * DD is a two digit ASCII hexadecimal 2927 * number. The value of the two digits is 2928 * based one the SCSI "Peripheral device 2929 * type" command set associated with the 2930 * node. On a primary node this is the 2931 * scsi_dtype of the primary command set, 2932 * on a secondary node this is the 2933 * scsi_dtype associated with the embedded 2934 * function command set. 2935 * 2936 * EE Same encoding used for DD. This form is 2937 * only generated on secondary function 2938 * nodes. The DD function is embedded in 2939 * an EE device. 2940 * 2941 * FFF Concatenation, in alphabetical order, 2942 * of the flag characters within a form-group. 2943 * For a given form-group, the following 2944 * flags are defined. 2945 * 2946 * scsiclass: (generic form-group): 2947 * R Removable_Media: Used when 2948 * inq_rmb is set. 2949 * 2950 * scsa.f: (failover form-group): 2951 * E Explicit Target_Port_Group: Used 2952 * when inq_tpgse is set and 'G' is 2953 * alse present. 2954 * G GUID: Used when a GUID can be 2955 * generated for the device. 2956 * I Implicit Target_Port_Group: Used 2957 * when inq_tpgs is set and 'G' is 2958 * also present. 2959 * 2960 * Forms using FFF are only be generated 2961 * if there are applicable flag 2962 * characters. 2963 * 2964 * b is the letter 'b'. Denotes the 2965 * beginning of BBBBBBBB. 2966 * 2967 * BBBBBBBB Binding-set. Operating System Specific: 2968 * scsi-binding-set property of HBA. 2969 */ 2970 #define NCOMPAT (1 + (13 + 2) + 1) 2971 #define COMPAT_LONGEST (strlen( \ 2972 "scsiclass,DDEEFFF.vVVVVVVVV.pPPPPPPPPPPPPPPPP.rRRRR" + 1)) 2973 2974 /* 2975 * Private version with extra device 'identity' arguments to allow code 2976 * to determine GUID FFF support. 2977 */ 2978 static void 2979 scsi_hba_identity_nodename_compatible_get(struct scsi_inquiry *inq, 2980 uchar_t *inq80, size_t inq80len, uchar_t *inq83, size_t inq83len, 2981 char *binding_set, int dtype_node, char *compat0, 2982 char **nodenamep, char ***compatiblep, int *ncompatiblep) 2983 { 2984 char vid[sizeof (inq->inq_vid) + 1 ]; 2985 char pid[sizeof (inq->inq_pid) + 1]; 2986 char rev[sizeof (inq->inq_revision) + 1]; 2987 char gf[sizeof ("R\0")]; 2988 char ff[sizeof ("EGI\0")]; 2989 int dtype_device; 2990 int ncompat; /* number of compatible */ 2991 char **compatp; /* compatible ptrs */ 2992 int i; 2993 char *nname; /* nodename */ 2994 char *dname; /* driver name */ 2995 char **csp; 2996 char *p; 2997 int tlen; 2998 int len; 2999 major_t major; 3000 ddi_devid_t devid; 3001 char *guid; 3002 3003 /* 3004 * Nodename_aliases: This table was originally designed to be 3005 * implemented via a new nodename_aliases file - a peer to the 3006 * driver_aliases that selects a nodename based on compatible 3007 * forms in much the same say driver_aliases is used to select 3008 * driver bindings from compatible forms. Each compatible form 3009 * is an 'alias'. Until a more general need for a 3010 * nodename_aliases file exists, which may never occur, the 3011 * scsi mappings are described here via a compiled in table. 3012 * 3013 * This table contains nodename mappings for self-identifying 3014 * scsi devices enumerated by the Solaris kernel. For a given 3015 * device, the highest precedence "compatible" form with a 3016 * mapping is used to select the nodename for the device. This 3017 * will typically be a generic nodename, however in some legacy 3018 * compatibility cases a driver nodename mapping may be selected. 3019 * 3020 * Because of possible breakage associated with switching SCSI 3021 * target devices from driver nodenames to generic nodenames, 3022 * we are currently unable to support generic nodenames for all 3023 * SCSI devices (binding-sets). Although /devices paths are 3024 * defined as unstable, avoiding possible breakage is 3025 * important. Some of the newer SCSI transports (USB) already 3026 * use generic nodenames. All new SCSI transports and target 3027 * devices should use generic nodenames. At times this decision 3028 * may be architecture dependent (sparc .vs. intel) based on when 3029 * a transport was supported on a particular architecture. 3030 * 3031 * We provide a base set of generic nodename mappings based on 3032 * scsiclass dtype and higher-precedence driver nodename 3033 * mappings based on scsa "binding-set" to cover legacy 3034 * issues. The binding-set is typically associated with 3035 * "scsi-binding-set" property value of the HBA. The legacy 3036 * mappings are provided independent of whether the driver they 3037 * refer to is installed. This allows a correctly named node 3038 * be created at discovery time, and binding to occur when/if 3039 * an add_drv of the legacy driver occurs. 3040 * 3041 * We also have mappings for legacy SUN hardware that 3042 * misidentifies itself (enclosure services which identify 3043 * themselves as processors). All future hardware should use 3044 * the correct dtype. 3045 * 3046 * As SCSI HBAs are modified to use the SCSA interfaces for 3047 * self-identifying SCSI target devices (PSARC/2004/116) the 3048 * nodename_aliases table (PSARC/2004/420) should be augmented 3049 * with legacy mappings in order to maintain compatibility with 3050 * existing /devices paths, especially for devices that house 3051 * an OS. Failure to do this may cause upgrade problems. 3052 * Additions for new target devices or transports should not 3053 * add scsa binding-set compatible mappings. 3054 */ 3055 static struct nodename_aliases { 3056 char *na_nodename; /* nodename */ 3057 char *na_alias; /* compatible form match */ 3058 } na[] = { 3059 /* # mapping to generic nodenames based on scsi dtype */ 3060 {"disk", "scsiclass,00"}, 3061 {"tape", "scsiclass,01"}, 3062 {"printer", "scsiclass,02"}, 3063 {"processor", "scsiclass,03"}, 3064 {"worm", "scsiclass,04"}, 3065 {"cdrom", "scsiclass,05"}, 3066 {"scanner", "scsiclass,06"}, 3067 {"optical-disk", "scsiclass,07"}, 3068 {"medium-changer", "scsiclass,08"}, 3069 {"obsolete", "scsiclass,09"}, 3070 {"prepress-a", "scsiclass,0a"}, 3071 {"prepress-b", "scsiclass,0b"}, 3072 {"array-controller", "scsiclass,0c"}, 3073 {"enclosure", "scsiclass,0d"}, 3074 {"disk", "scsiclass,0e"}, 3075 {"card-reader", "scsiclass,0f"}, 3076 {"bridge", "scsiclass,10"}, 3077 {"object-store", "scsiclass,11"}, 3078 {"reserved", "scsiclass,12"}, 3079 {"reserved", "scsiclass,13"}, 3080 {"reserved", "scsiclass,14"}, 3081 {"reserved", "scsiclass,15"}, 3082 {"reserved", "scsiclass,16"}, 3083 {"reserved", "scsiclass,17"}, 3084 {"reserved", "scsiclass,18"}, 3085 {"reserved", "scsiclass,19"}, 3086 {"reserved", "scsiclass,1a"}, 3087 {"reserved", "scsiclass,1b"}, 3088 {"reserved", "scsiclass,1c"}, 3089 {"reserved", "scsiclass,1d"}, 3090 {"well-known-lun", "scsiclass,1e"}, 3091 {"unknown", "scsiclass,1f"}, 3092 3093 #ifdef sparc 3094 /* # legacy mapping to driver nodenames for fcp binding-set */ 3095 {"ssd", "scsa,00.bfcp"}, 3096 {"st", "scsa,01.bfcp"}, 3097 {"sgen", "scsa,08.bfcp"}, 3098 {"ses", "scsa,0d.bfcp"}, 3099 3100 /* # legacy mapping to driver nodenames for vhci binding-set */ 3101 {"ssd", "scsa,00.bvhci"}, 3102 {"st", "scsa,01.bvhci"}, 3103 {"sgen", "scsa,08.bvhci"}, 3104 {"ses", "scsa,0d.bvhci"}, 3105 #else /* sparc */ 3106 /* # for x86 fcp and vhci use generic nodenames */ 3107 #endif /* sparc */ 3108 3109 #ifdef notdef 3110 /* 3111 * The following binding-set specific mappings are not being 3112 * delivered at this time, but are listed here as an examples of 3113 * the type of mappings needed. 3114 */ 3115 3116 /* # legacy mapping to driver nodenames for spi binding-set */ 3117 {"sd", "scsa,00.bspi"}, 3118 {"sd", "scsa,05.bspi"}, 3119 {"sd", "scsa,07.bspi"}, 3120 {"st", "scsa,01.bspi"}, 3121 {"ses", "scsa,0d.bspi"}, 3122 3123 /* # SUN misidentified spi hardware */ 3124 {"ses", "scsiclass,03.vSUN.pD2"}, 3125 {"ses", "scsiclass,03.vSYMBIOS.pD1000"}, 3126 3127 /* # legacy mapping to driver nodenames for atapi binding-set */ 3128 {"sd", "scsa,00.batapi"}, 3129 {"sd", "scsa,05.batapi"}, 3130 {"sd", "scsa,07.batapi"}, 3131 {"st", "scsa,01.batapi"}, 3132 {"unknown", "scsa,0d.batapi"}, 3133 3134 /* # legacy mapping to generic nodenames for usb binding-set */ 3135 {"disk", "scsa,05.busb"}, 3136 {"disk", "scsa,07.busb"}, 3137 {"changer", "scsa,08.busb"}, 3138 {"comm", "scsa,09.busb"}, 3139 {"array_ctlr", "scsa,0c.busb"}, 3140 {"esi", "scsa,0d.busb"}, 3141 #endif /* notdef */ 3142 3143 /* 3144 * mapping nodenames for mpt based on scsi dtype 3145 * for being compatible with the original node names 3146 * under mpt controller 3147 */ 3148 {"sd", "scsa,00.bmpt"}, 3149 {"sd", "scsa,05.bmpt"}, 3150 {"sd", "scsa,07.bmpt"}, 3151 {"st", "scsa,01.bmpt"}, 3152 {"ses", "scsa,0d.bmpt"}, 3153 {"sgen", "scsa,08.bmpt"}, 3154 {NULL, NULL} 3155 }; 3156 struct nodename_aliases *nap; 3157 3158 ASSERT(nodenamep && compatiblep && ncompatiblep && 3159 (binding_set == NULL || (strlen(binding_set) <= 8))); 3160 if ((nodenamep == NULL) || (compatiblep == NULL) || 3161 (ncompatiblep == NULL)) 3162 return; 3163 3164 /* 3165 * In order to reduce runtime we allocate one block of memory that 3166 * contains both the NULL terminated array of pointers to compatible 3167 * forms and the individual compatible strings. This block is 3168 * somewhat larger than needed, but is short lived - it only exists 3169 * until the caller can transfer the information into the "compatible" 3170 * string array property and call scsi_hba_nodename_compatible_free. 3171 */ 3172 tlen = NCOMPAT * COMPAT_LONGEST; 3173 compatp = kmem_alloc((NCOMPAT * sizeof (char *)) + tlen, KM_SLEEP); 3174 3175 /* convert inquiry data from SCSI ASCII to 1275 string */ 3176 (void) string_scsi_to_1275(vid, inq->inq_vid, 3177 sizeof (inq->inq_vid)); 3178 (void) string_scsi_to_1275(pid, inq->inq_pid, 3179 sizeof (inq->inq_pid)); 3180 (void) string_scsi_to_1275(rev, inq->inq_revision, 3181 sizeof (inq->inq_revision)); 3182 ASSERT((strlen(vid) <= sizeof (inq->inq_vid)) && 3183 (strlen(pid) <= sizeof (inq->inq_pid)) && 3184 (strlen(rev) <= sizeof (inq->inq_revision))); 3185 3186 /* 3187 * Form flags in ***ALPHABETICAL*** order within form-group: 3188 * 3189 * NOTE: When adding a new flag to an existing form-group, carefull 3190 * consideration must be given to not breaking existing bindings 3191 * based on that form-group. 3192 */ 3193 3194 /* 3195 * generic form-group flags 3196 * R removable: 3197 * Set when inq_rmb is set and for well known scsi dtypes. For a 3198 * bus where the entire device is removable (like USB), we expect 3199 * the HBA to intercept the inquiry data and set inq_rmb. 3200 * Since OBP does not distinguish removable media in its generic 3201 * name selection we avoid setting the 'R' flag if the root is not 3202 * yet mounted. 3203 */ 3204 i = 0; 3205 dtype_device = inq->inq_dtype & DTYPE_MASK; 3206 if (rootvp && (inq->inq_rmb || 3207 (dtype_device == DTYPE_WORM) || 3208 (dtype_device == DTYPE_RODIRECT) || 3209 (dtype_device == DTYPE_OPTICAL))) 3210 gf[i++] = 'R'; /* removable */ 3211 gf[i] = '\0'; 3212 3213 /* 3214 * failover form-group flags 3215 * E Explicit Target_Port_Group_Supported: 3216 * Set for a device that has a GUID if inq_tpgse also set. 3217 * G GUID: 3218 * Set when we have identity information, can determine a devid 3219 * from the identity information, and can generate a guid from 3220 * that devid. 3221 * I Implicit Target_Port_Group_Supported: 3222 * Set for a device that has a GUID if inq_tpgs also set. 3223 */ 3224 i = 0; 3225 if ((inq80 || inq83) && 3226 (ddi_devid_scsi_encode(DEVID_SCSI_ENCODE_VERSION_LATEST, NULL, 3227 (uchar_t *)inq, sizeof (*inq), inq80, inq80len, inq83, inq83len, 3228 &devid) == DDI_SUCCESS)) { 3229 guid = ddi_devid_to_guid(devid); 3230 ddi_devid_free(devid); 3231 } else 3232 guid = NULL; 3233 if (guid && (inq->inq_tpgs & TPGS_FAILOVER_EXPLICIT)) 3234 ff[i++] = 'E'; /* EXPLICIT TPGS */ 3235 if (guid) 3236 ff[i++] = 'G'; /* GUID */ 3237 if (guid && (inq->inq_tpgs & TPGS_FAILOVER_IMPLICIT)) 3238 ff[i++] = 'I'; /* IMPLICIT TPGS */ 3239 ff[i] = '\0'; 3240 if (guid) 3241 ddi_devid_free_guid(guid); 3242 3243 /* 3244 * Construct all applicable compatible forms. See comment at the 3245 * head of the function for a description of the compatible forms. 3246 */ 3247 csp = compatp; 3248 p = (char *)(compatp + NCOMPAT); 3249 3250 /* ( 0) driver (optional, not documented in scsi(4)) */ 3251 if (compat0) { 3252 *csp++ = p; 3253 (void) snprintf(p, tlen, "%s", compat0); 3254 len = strlen(p) + 1; 3255 p += len; 3256 tlen -= len; 3257 } 3258 3259 /* ( 1) scsiclass,DDEEFFF.vV.pP.rR */ 3260 if ((dtype_device != dtype_node) && *gf && *vid && *pid && *rev) { 3261 *csp++ = p; 3262 (void) snprintf(p, tlen, "scsiclass,%02x%02x%s.v%s.p%s.r%s", 3263 dtype_node, dtype_device, gf, vid, pid, rev); 3264 len = strlen(p) + 1; 3265 p += len; 3266 tlen -= len; 3267 } 3268 3269 /* ( 2) scsiclass,DDEE.vV.pP.rR */ 3270 if ((dtype_device != dtype_node) && *vid && *pid && *rev) { 3271 *csp++ = p; 3272 (void) snprintf(p, tlen, "scsiclass,%02x%02x.v%s.p%s.r%s", 3273 dtype_node, dtype_device, vid, pid, rev); 3274 len = strlen(p) + 1; 3275 p += len; 3276 tlen -= len; 3277 } 3278 3279 /* ( 3) scsiclass,DDFFF.vV.pP.rR */ 3280 if (*gf && *vid && *pid && *rev) { 3281 *csp++ = p; 3282 (void) snprintf(p, tlen, "scsiclass,%02x%s.v%s.p%s.r%s", 3283 dtype_node, gf, vid, pid, rev); 3284 len = strlen(p) + 1; 3285 p += len; 3286 tlen -= len; 3287 } 3288 3289 /* ( 4) scsiclass,DD.vV.pP.rR */ 3290 if (*vid && *pid && rev) { 3291 *csp++ = p; 3292 (void) snprintf(p, tlen, "scsiclass,%02x.v%s.p%s.r%s", 3293 dtype_node, vid, pid, rev); 3294 len = strlen(p) + 1; 3295 p += len; 3296 tlen -= len; 3297 } 3298 3299 /* ( 5) scsiclass,DDEEFFF.vV.pP */ 3300 if ((dtype_device != dtype_node) && *gf && *vid && *pid) { 3301 *csp++ = p; 3302 (void) snprintf(p, tlen, "scsiclass,%02x%02x%s.v%s.p%s", 3303 dtype_node, dtype_device, gf, vid, pid); 3304 len = strlen(p) + 1; 3305 p += len; 3306 tlen -= len; 3307 } 3308 3309 /* ( 6) scsiclass,DDEE.vV.pP */ 3310 if ((dtype_device != dtype_node) && *vid && *pid) { 3311 *csp++ = p; 3312 (void) snprintf(p, tlen, "scsiclass,%02x%02x.v%s.p%s", 3313 dtype_node, dtype_device, vid, pid); 3314 len = strlen(p) + 1; 3315 p += len; 3316 tlen -= len; 3317 } 3318 3319 /* ( 7) scsiclass,DDFFF.vV.pP */ 3320 if (*gf && *vid && *pid) { 3321 *csp++ = p; 3322 (void) snprintf(p, tlen, "scsiclass,%02x%s.v%s.p%s", 3323 dtype_node, gf, vid, pid); 3324 len = strlen(p) + 1; 3325 p += len; 3326 tlen -= len; 3327 } 3328 3329 /* ( 8) scsiclass,DD.vV.pP */ 3330 if (*vid && *pid) { 3331 *csp++ = p; 3332 (void) snprintf(p, tlen, "scsiclass,%02x.v%s.p%s", 3333 dtype_node, vid, pid); 3334 len = strlen(p) + 1; 3335 p += len; 3336 tlen -= len; 3337 } 3338 3339 /* (8.5) scsa,DD.bB (not documented in scsi(4)) */ 3340 if (binding_set) { 3341 *csp++ = p; 3342 (void) snprintf(p, tlen, "scsa,%02x.b%s", 3343 dtype_node, binding_set); 3344 len = strlen(p) + 1; 3345 p += len; 3346 tlen -= len; 3347 } 3348 3349 /* ( 9) scsiclass,DDEEFFF */ 3350 if ((dtype_device != dtype_node) && *gf) { 3351 *csp++ = p; 3352 (void) snprintf(p, tlen, "scsiclass,%02x%02x%s", 3353 dtype_node, dtype_device, gf); 3354 len = strlen(p) + 1; 3355 p += len; 3356 tlen -= len; 3357 } 3358 3359 /* (10) scsiclass,DDEE */ 3360 if (dtype_device != dtype_node) { 3361 *csp++ = p; 3362 (void) snprintf(p, tlen, "scsiclass,%02x%02x", 3363 dtype_node, dtype_device); 3364 len = strlen(p) + 1; 3365 p += len; 3366 tlen -= len; 3367 } 3368 3369 /* (11) scsiclass,DDFFF */ 3370 if (*gf) { 3371 *csp++ = p; 3372 (void) snprintf(p, tlen, "scsiclass,%02x%s", 3373 dtype_node, gf); 3374 len = strlen(p) + 1; 3375 p += len; 3376 tlen -= len; 3377 } 3378 3379 /* (12) scsiclass,DD */ 3380 *csp++ = p; 3381 (void) snprintf(p, tlen, "scsiclass,%02x", dtype_node); 3382 len = strlen(p) + 1; 3383 p += len; 3384 tlen -= len; 3385 3386 /* (12.5) scsa.fFFF */ 3387 if (*ff) { 3388 *csp++ = p; 3389 (void) snprintf(p, tlen, "scsa.f%s", ff); 3390 len = strlen(p) + 1; 3391 p += len; 3392 tlen -= len; 3393 } 3394 3395 /* (13) scsiclass */ 3396 *csp++ = p; 3397 (void) snprintf(p, tlen, "scsiclass"); 3398 len = strlen(p) + 1; 3399 p += len; 3400 tlen -= len; 3401 ASSERT(tlen >= 0); 3402 3403 *csp = NULL; /* NULL terminate array of pointers */ 3404 ncompat = csp - compatp; 3405 3406 /* 3407 * When determining a nodename, a nodename_aliases specified 3408 * mapping has precedence over using a driver_aliases specified 3409 * driver binding as a nodename. 3410 * 3411 * See if any of the compatible forms have a nodename_aliases 3412 * specified nodename. These mappings are described by 3413 * nodename_aliases entries like: 3414 * 3415 * disk "scsiclass,00" 3416 * enclosure "scsiclass,03.vSYMBIOS.pD1000" 3417 * ssd "scsa,00.bfcp" 3418 * 3419 * All nodename_aliases mappings should idealy be to generic 3420 * names, however a higher precedence legacy mapping to a 3421 * driver name may exist. The highest precedence mapping 3422 * provides the nodename, so legacy driver nodename mappings 3423 * (if they exist) take precedence over generic nodename 3424 * mappings. 3425 */ 3426 for (nname = NULL, csp = compatp; (nname == NULL) && *csp; csp++) { 3427 for (nap = na; nap->na_nodename; nap++) { 3428 if (strcmp(*csp, nap->na_alias) == 0) { 3429 nname = nap->na_nodename; 3430 break; 3431 } 3432 } 3433 } 3434 3435 /* 3436 * If no nodename_aliases mapping exists then use the 3437 * driver_aliases specified driver binding as a nodename. 3438 * Determine the driver based on compatible (which may 3439 * have the passed in compat0 as the first item). The 3440 * driver_aliases file has entries like 3441 * 3442 * sd "scsiclass,00" 3443 * 3444 * that map compatible forms to specific drivers. These 3445 * entries are established by add_drv. We use the most specific 3446 * driver binding as the nodename. This matches the eventual 3447 * ddi_driver_compatible_major() binding that will be 3448 * established by bind_node() 3449 */ 3450 if (nname == NULL) { 3451 for (dname = NULL, csp = compatp; *csp; csp++) { 3452 major = ddi_name_to_major(*csp); 3453 if ((major == (major_t)-1) || 3454 (devnamesp[major].dn_flags & DN_DRIVER_REMOVED)) 3455 continue; 3456 if (dname = ddi_major_to_name(major)) 3457 break; 3458 } 3459 nname = dname; 3460 } 3461 3462 /* return results */ 3463 if (nname) { 3464 *nodenamep = kmem_alloc(strlen(nname) + 1, KM_SLEEP); 3465 (void) strcpy(*nodenamep, nname); 3466 } else { 3467 *nodenamep = NULL; 3468 3469 /* 3470 * If no nodename could be determined return a special 3471 * 'compatible' to be used for a diagnostic message. This 3472 * compatible contains all compatible forms concatenated 3473 * into a single string pointed to by the first element. 3474 */ 3475 if (nname == NULL) { 3476 for (csp = compatp; *(csp + 1); csp++) 3477 *((*csp) + strlen(*csp)) = ' '; 3478 *(compatp + 1) = NULL; 3479 ncompat = 1; 3480 } 3481 3482 } 3483 *compatiblep = compatp; 3484 *ncompatiblep = ncompat; 3485 } 3486 3487 void 3488 scsi_hba_nodename_compatible_get(struct scsi_inquiry *inq, 3489 char *binding_set, int dtype_node, char *compat0, 3490 char **nodenamep, char ***compatiblep, int *ncompatiblep) 3491 { 3492 scsi_hba_identity_nodename_compatible_get(inq, 3493 NULL, 0, NULL, 0, binding_set, dtype_node, compat0, nodenamep, 3494 compatiblep, ncompatiblep); 3495 } 3496 3497 /* 3498 * Free allocations associated with scsi_hba_nodename_compatible_get or 3499 * scsi_hba_identity_nodename_compatible_get use. 3500 */ 3501 void 3502 scsi_hba_nodename_compatible_free(char *nodename, char **compatible) 3503 { 3504 if (nodename) 3505 kmem_free(nodename, strlen(nodename) + 1); 3506 3507 if (compatible) 3508 kmem_free(compatible, (NCOMPAT * sizeof (char *)) + 3509 (NCOMPAT * COMPAT_LONGEST)); 3510 } 3511 3512 /* scsi_device property interfaces */ 3513 #define _TYPE_DEFINED(flags) \ 3514 (((flags & SCSI_DEVICE_PROP_TYPE_MSK) == SCSI_DEVICE_PROP_PATH) || \ 3515 ((flags & SCSI_DEVICE_PROP_TYPE_MSK) == SCSI_DEVICE_PROP_DEVICE)) 3516 3517 #define _DEVICE_PIP(sd, flags) \ 3518 ((((flags & SCSI_DEVICE_PROP_TYPE_MSK) == SCSI_DEVICE_PROP_PATH) && \ 3519 sd->sd_pathinfo) ? (mdi_pathinfo_t *)sd->sd_pathinfo : NULL) 3520 3521 /* return the unit_address associated with a scsi_device */ 3522 char * 3523 scsi_device_unit_address(struct scsi_device *sd) 3524 { 3525 mdi_pathinfo_t *pip; 3526 3527 ASSERT(sd && sd->sd_dev); 3528 if ((sd == NULL) || (sd->sd_dev == NULL)) 3529 return (NULL); 3530 3531 pip = _DEVICE_PIP(sd, SCSI_DEVICE_PROP_PATH); 3532 if (pip) 3533 return (mdi_pi_get_addr(pip)); 3534 else 3535 return (ddi_get_name_addr(sd->sd_dev)); 3536 } 3537 3538 int 3539 scsi_device_prop_get_int(struct scsi_device *sd, uint_t flags, 3540 char *name, int defval) 3541 { 3542 mdi_pathinfo_t *pip; 3543 int v = defval; 3544 int data; 3545 int rv; 3546 3547 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3548 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3549 !_TYPE_DEFINED(flags)) 3550 return (v); 3551 3552 pip = _DEVICE_PIP(sd, flags); 3553 if (pip) { 3554 rv = mdi_prop_lookup_int(pip, name, &data); 3555 if (rv == DDI_PROP_SUCCESS) 3556 v = data; 3557 } else 3558 v = ddi_prop_get_int(DDI_DEV_T_ANY, sd->sd_dev, 3559 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, name, v); 3560 return (v); 3561 } 3562 3563 3564 int64_t 3565 scsi_device_prop_get_int64(struct scsi_device *sd, uint_t flags, 3566 char *name, int64_t defval) 3567 { 3568 mdi_pathinfo_t *pip; 3569 int64_t v = defval; 3570 int64_t data; 3571 int rv; 3572 3573 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3574 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3575 !_TYPE_DEFINED(flags)) 3576 return (v); 3577 3578 pip = _DEVICE_PIP(sd, flags); 3579 if (pip) { 3580 rv = mdi_prop_lookup_int64(pip, name, &data); 3581 if (rv == DDI_PROP_SUCCESS) 3582 v = data; 3583 } else 3584 v = ddi_prop_get_int64(DDI_DEV_T_ANY, sd->sd_dev, 3585 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, name, v); 3586 return (v); 3587 } 3588 3589 int 3590 scsi_device_prop_lookup_byte_array(struct scsi_device *sd, uint_t flags, 3591 char *name, uchar_t **data, uint_t *nelements) 3592 { 3593 mdi_pathinfo_t *pip; 3594 int rv; 3595 3596 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3597 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3598 !_TYPE_DEFINED(flags)) 3599 return (DDI_PROP_INVAL_ARG); 3600 3601 pip = _DEVICE_PIP(sd, flags); 3602 if (pip) 3603 rv = mdi_prop_lookup_byte_array(pip, name, data, nelements); 3604 else 3605 rv = ddi_prop_lookup_byte_array(DDI_DEV_T_ANY, sd->sd_dev, 3606 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, 3607 name, data, nelements); 3608 return (rv); 3609 } 3610 3611 int 3612 scsi_device_prop_lookup_int_array(struct scsi_device *sd, uint_t flags, 3613 char *name, int **data, uint_t *nelements) 3614 { 3615 mdi_pathinfo_t *pip; 3616 int rv; 3617 3618 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3619 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3620 !_TYPE_DEFINED(flags)) 3621 return (DDI_PROP_INVAL_ARG); 3622 3623 pip = _DEVICE_PIP(sd, flags); 3624 if (pip) 3625 rv = mdi_prop_lookup_int_array(pip, name, data, nelements); 3626 else 3627 rv = ddi_prop_lookup_int_array(DDI_DEV_T_ANY, sd->sd_dev, 3628 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, 3629 name, data, nelements); 3630 return (rv); 3631 } 3632 3633 3634 int 3635 scsi_device_prop_lookup_string(struct scsi_device *sd, uint_t flags, 3636 char *name, char **data) 3637 { 3638 mdi_pathinfo_t *pip; 3639 int rv; 3640 3641 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3642 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3643 !_TYPE_DEFINED(flags)) 3644 return (DDI_PROP_INVAL_ARG); 3645 3646 pip = _DEVICE_PIP(sd, flags); 3647 if (pip) 3648 rv = mdi_prop_lookup_string(pip, name, data); 3649 else 3650 rv = ddi_prop_lookup_string(DDI_DEV_T_ANY, sd->sd_dev, 3651 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, 3652 name, data); 3653 return (rv); 3654 } 3655 3656 int 3657 scsi_device_prop_lookup_string_array(struct scsi_device *sd, uint_t flags, 3658 char *name, char ***data, uint_t *nelements) 3659 { 3660 mdi_pathinfo_t *pip; 3661 int rv; 3662 3663 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3664 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3665 !_TYPE_DEFINED(flags)) 3666 return (DDI_PROP_INVAL_ARG); 3667 3668 pip = _DEVICE_PIP(sd, flags); 3669 if (pip) 3670 rv = mdi_prop_lookup_string_array(pip, name, data, nelements); 3671 else 3672 rv = ddi_prop_lookup_string_array(DDI_DEV_T_ANY, sd->sd_dev, 3673 DDI_PROP_NOTPROM | DDI_PROP_DONTPASS, 3674 name, data, nelements); 3675 return (rv); 3676 } 3677 3678 int 3679 scsi_device_prop_update_byte_array(struct scsi_device *sd, uint_t flags, 3680 char *name, uchar_t *data, uint_t nelements) 3681 { 3682 mdi_pathinfo_t *pip; 3683 int rv; 3684 3685 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3686 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3687 !_TYPE_DEFINED(flags)) 3688 return (DDI_PROP_INVAL_ARG); 3689 3690 pip = _DEVICE_PIP(sd, flags); 3691 if (pip) 3692 rv = mdi_prop_update_byte_array(pip, name, data, nelements); 3693 else 3694 rv = ndi_prop_update_byte_array(DDI_DEV_T_NONE, sd->sd_dev, 3695 name, data, nelements); 3696 return (rv); 3697 } 3698 3699 int 3700 scsi_device_prop_update_int(struct scsi_device *sd, uint_t flags, 3701 char *name, int data) 3702 { 3703 mdi_pathinfo_t *pip; 3704 int rv; 3705 3706 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3707 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3708 !_TYPE_DEFINED(flags)) 3709 return (DDI_PROP_INVAL_ARG); 3710 3711 pip = _DEVICE_PIP(sd, flags); 3712 if (pip) 3713 rv = mdi_prop_update_int(pip, name, data); 3714 else 3715 rv = ndi_prop_update_int(DDI_DEV_T_NONE, sd->sd_dev, 3716 name, data); 3717 return (rv); 3718 } 3719 3720 int 3721 scsi_device_prop_update_int64(struct scsi_device *sd, uint_t flags, 3722 char *name, int64_t data) 3723 { 3724 mdi_pathinfo_t *pip; 3725 int rv; 3726 3727 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3728 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3729 !_TYPE_DEFINED(flags)) 3730 return (DDI_PROP_INVAL_ARG); 3731 3732 pip = _DEVICE_PIP(sd, flags); 3733 if (pip) 3734 rv = mdi_prop_update_int64(pip, name, data); 3735 else 3736 rv = ndi_prop_update_int64(DDI_DEV_T_NONE, sd->sd_dev, 3737 name, data); 3738 return (rv); 3739 } 3740 3741 int 3742 scsi_device_prop_update_int_array(struct scsi_device *sd, uint_t flags, 3743 char *name, int *data, uint_t nelements) 3744 { 3745 mdi_pathinfo_t *pip; 3746 int rv; 3747 3748 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3749 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3750 !_TYPE_DEFINED(flags)) 3751 return (DDI_PROP_INVAL_ARG); 3752 3753 pip = _DEVICE_PIP(sd, flags); 3754 if (pip) 3755 rv = mdi_prop_update_int_array(pip, name, data, nelements); 3756 else 3757 rv = ndi_prop_update_int_array(DDI_DEV_T_NONE, sd->sd_dev, 3758 name, data, nelements); 3759 return (rv); 3760 } 3761 3762 int 3763 scsi_device_prop_update_string(struct scsi_device *sd, uint_t flags, 3764 char *name, char *data) 3765 { 3766 mdi_pathinfo_t *pip; 3767 int rv; 3768 3769 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3770 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3771 !_TYPE_DEFINED(flags)) 3772 return (DDI_PROP_INVAL_ARG); 3773 3774 pip = _DEVICE_PIP(sd, flags); 3775 if (pip) 3776 rv = mdi_prop_update_string(pip, name, data); 3777 else 3778 rv = ndi_prop_update_string(DDI_DEV_T_NONE, sd->sd_dev, 3779 name, data); 3780 return (rv); 3781 } 3782 3783 int 3784 scsi_device_prop_update_string_array(struct scsi_device *sd, uint_t flags, 3785 char *name, char **data, uint_t nelements) 3786 { 3787 mdi_pathinfo_t *pip; 3788 int rv; 3789 3790 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3791 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3792 !_TYPE_DEFINED(flags)) 3793 return (DDI_PROP_INVAL_ARG); 3794 3795 pip = _DEVICE_PIP(sd, flags); 3796 if (pip) 3797 rv = mdi_prop_update_string_array(pip, name, data, nelements); 3798 else 3799 rv = ndi_prop_update_string_array(DDI_DEV_T_NONE, sd->sd_dev, 3800 name, data, nelements); 3801 return (rv); 3802 } 3803 3804 int 3805 scsi_device_prop_remove(struct scsi_device *sd, uint_t flags, char *name) 3806 { 3807 mdi_pathinfo_t *pip; 3808 int rv; 3809 3810 ASSERT(sd && name && sd->sd_dev && _TYPE_DEFINED(flags)); 3811 if ((sd == NULL) || (name == NULL) || (sd->sd_dev == NULL) || 3812 !_TYPE_DEFINED(flags)) 3813 return (DDI_PROP_INVAL_ARG); 3814 3815 pip = _DEVICE_PIP(sd, flags); 3816 if (pip) 3817 rv = mdi_prop_remove(pip, name); 3818 else 3819 rv = ndi_prop_remove(DDI_DEV_T_NONE, sd->sd_dev, name); 3820 return (rv); 3821 } 3822 3823 void 3824 scsi_device_prop_free(struct scsi_device *sd, uint_t flags, void *data) 3825 { 3826 mdi_pathinfo_t *pip; 3827 3828 ASSERT(sd && data && sd->sd_dev && _TYPE_DEFINED(flags)); 3829 if ((sd == NULL) || (data == NULL) || (sd->sd_dev == NULL) || 3830 !_TYPE_DEFINED(flags)) 3831 return; 3832 3833 pip = _DEVICE_PIP(sd, flags); 3834 if (pip) 3835 (void) mdi_prop_free(data); 3836 else 3837 ddi_prop_free(data); 3838 } 3839 3840 /*ARGSUSED*/ 3841 /* 3842 * Search/create the specified iport node 3843 */ 3844 static dev_info_t * 3845 scsi_hba_bus_config_port(dev_info_t *self, char *nameaddr) 3846 { 3847 dev_info_t *child; 3848 char *mcompatible, *addr; 3849 3850 /* 3851 * See if the iport node already exists. 3852 */ 3853 3854 if (child = ndi_devi_findchild(self, nameaddr)) { 3855 return (child); 3856 } 3857 3858 /* allocate and initialize a new "iport" node */ 3859 ndi_devi_alloc_sleep(self, "iport", DEVI_SID_NODEID, &child); 3860 ASSERT(child); 3861 /* 3862 * Set the flavor of the child to be IPORT flavored 3863 */ 3864 ndi_flavor_set(child, SCSA_FLAVOR_IPORT); 3865 3866 /* 3867 * Add the "scsi-iport" addressing property for this child. This 3868 * property is used to identify a iport node, and to represent the 3869 * nodes @addr form via node properties. 3870 * 3871 * Add "compatible" property to the "scsi-iport" node to cause it bind 3872 * to the same driver as the HBA driver. 3873 * 3874 * Give the HBA a chance, via tran_set_name_prop, to set additional 3875 * iport node properties or to change the "compatible" binding 3876 * prior to init_child. 3877 * 3878 * NOTE: the order of these operations is important so that 3879 * scsi_hba_iport works when called. 3880 */ 3881 mcompatible = ddi_binding_name(self); 3882 addr = nameaddr + strlen("iport@"); 3883 3884 if ((ndi_prop_update_string(DDI_DEV_T_NONE, child, 3885 "scsi-iport", addr) != DDI_PROP_SUCCESS) || 3886 (ndi_prop_update_string_array(DDI_DEV_T_NONE, child, 3887 "compatible", &mcompatible, 1) != DDI_PROP_SUCCESS) || 3888 ddi_pathname_obp_set(child, NULL) != DDI_SUCCESS) { 3889 SCSI_HBA_LOG((_LOG(WARN), self, NULL, 3890 "scsi_hba_bus_config_port:%s failed dynamic decoration", 3891 nameaddr)); 3892 (void) ddi_remove_child(child, 0); 3893 child = NULL; 3894 } else { 3895 if (ddi_initchild(self, child) != DDI_SUCCESS) { 3896 ndi_prop_remove_all(child); 3897 (void) ndi_devi_free(child); 3898 child = NULL; 3899 } 3900 } 3901 3902 return (child); 3903 } 3904 3905 #ifdef sparc 3906 /* ARGSUSED */ 3907 static int 3908 scsi_hba_bus_config_prom_node(dev_info_t *self, uint_t flags, 3909 void *arg, dev_info_t **childp) 3910 { 3911 char **iports; 3912 int circ, i; 3913 int ret = NDI_FAILURE; 3914 unsigned int num_iports = 0; 3915 dev_info_t *pdip = NULL; 3916 char *addr = NULL; 3917 3918 /* check to see if this is an HBA that defined scsi iports */ 3919 ret = ddi_prop_lookup_string_array(DDI_DEV_T_ANY, self, 3920 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, "scsi-iports", &iports, 3921 &num_iports); 3922 3923 if (ret != DDI_SUCCESS) { 3924 return (ret); 3925 } 3926 3927 ASSERT(num_iports > 0); 3928 3929 addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP); 3930 3931 ret = NDI_FAILURE; 3932 3933 ndi_devi_enter(self, &circ); 3934 3935 /* create iport nodes for each scsi port/bus */ 3936 for (i = 0; i < num_iports; i++) { 3937 bzero(addr, SCSI_MAXNAMELEN); 3938 /* Prepend the iport name */ 3939 (void) snprintf(addr, SCSI_MAXNAMELEN, "iport@%s", 3940 iports[i]); 3941 if (pdip = scsi_hba_bus_config_port(self, addr)) { 3942 if (ndi_busop_bus_config(self, NDI_NO_EVENT, 3943 BUS_CONFIG_ONE, addr, &pdip, 0) != 3944 NDI_SUCCESS) { 3945 continue; 3946 } 3947 /* 3948 * Try to configure child under iport see wehter 3949 * request node is the child of the iport node 3950 */ 3951 if (ndi_devi_config_one(pdip, arg, childp, 3952 NDI_NO_EVENT) == NDI_SUCCESS) { 3953 ret = NDI_SUCCESS; 3954 break; 3955 } 3956 } 3957 } 3958 3959 ndi_devi_exit(self, circ); 3960 3961 kmem_free(addr, SCSI_MAXNAMELEN); 3962 3963 ddi_prop_free(iports); 3964 3965 return (ret); 3966 } 3967 #endif 3968 3969 /* 3970 * Perform iport port/bus bus_config. 3971 */ 3972 static int 3973 scsi_hba_bus_config_iports(dev_info_t *self, uint_t flags, 3974 ddi_bus_config_op_t op, void *arg, dev_info_t **childp) 3975 { 3976 char *nameaddr, *addr; 3977 char **iports; 3978 int circ, i; 3979 int ret = NDI_FAILURE; 3980 unsigned int num_iports = 0; 3981 3982 /* check to see if this is an HBA that defined scsi iports */ 3983 ret = ddi_prop_lookup_string_array(DDI_DEV_T_ANY, self, 3984 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, "scsi-iports", &iports, 3985 &num_iports); 3986 3987 if (ret != DDI_SUCCESS) { 3988 return (ret); 3989 } 3990 3991 ASSERT(num_iports > 0); 3992 3993 ndi_devi_enter(self, &circ); 3994 3995 switch (op) { 3996 case BUS_CONFIG_ONE: 3997 /* return if this operation is not against an iport node */ 3998 nameaddr = (char *)arg; 3999 if ((nameaddr == NULL) || 4000 (strncmp(nameaddr, "iport@", strlen("iport@")) != 0)) { 4001 ret = NDI_FAILURE; 4002 ndi_devi_exit(self, circ); 4003 ddi_prop_free(iports); 4004 return (ret); 4005 } 4006 4007 /* 4008 * parse the port number from "iport@%x" 4009 * XXX use atoi (hex) 4010 */ 4011 addr = nameaddr + strlen("iport@"); 4012 4013 /* check to see if this port was registered */ 4014 for (i = 0; i < num_iports; i++) { 4015 if (strcmp((iports[i]), addr) == 0) 4016 break; 4017 } 4018 4019 if (i == num_iports) { 4020 ret = NDI_FAILURE; 4021 break; 4022 } 4023 4024 /* create the iport node */ 4025 if (scsi_hba_bus_config_port(self, nameaddr)) { 4026 ret = NDI_SUCCESS; 4027 } 4028 break; 4029 case BUS_CONFIG_ALL: 4030 case BUS_CONFIG_DRIVER: 4031 addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP); 4032 /* create iport nodes for each scsi port/bus */ 4033 for (i = 0; i < num_iports; i++) { 4034 bzero(addr, SCSI_MAXNAMELEN); 4035 /* Prepend the iport name */ 4036 (void) snprintf(addr, SCSI_MAXNAMELEN, "iport@%s", 4037 iports[i]); 4038 (void) scsi_hba_bus_config_port(self, addr); 4039 } 4040 4041 kmem_free(addr, SCSI_MAXNAMELEN); 4042 ret = NDI_SUCCESS; 4043 break; 4044 } 4045 if (ret == NDI_SUCCESS) { 4046 #ifdef sparc 4047 /* 4048 * Mask NDI_PROMNAME since PROM doesn't have iport 4049 * node at all. 4050 */ 4051 flags &= (~NDI_PROMNAME); 4052 #endif 4053 ret = ndi_busop_bus_config(self, flags, op, 4054 arg, childp, 0); 4055 } 4056 ndi_devi_exit(self, circ); 4057 4058 ddi_prop_free(iports); 4059 4060 return (ret); 4061 } 4062 4063 4064 /*ARGSUSED*/ 4065 static int 4066 scsi_hba_bus_config(dev_info_t *self, uint_t flag, ddi_bus_config_op_t op, 4067 void *arg, dev_info_t **childp) 4068 { 4069 scsi_hba_tran_t *tran = NULL; 4070 4071 tran = ddi_get_driver_private(self); 4072 4073 if (tran && (tran->tran_hba_flags & SCSI_HBA_HBA)) { 4074 #ifdef sparc 4075 char *nameaddr = NULL; 4076 nameaddr = (char *)arg; 4077 switch (op) { 4078 case BUS_CONFIG_ONE: 4079 if (nameaddr == NULL) 4080 return (NDI_FAILURE); 4081 if (strncmp(nameaddr, "iport", strlen("iport")) == 0) { 4082 break; 4083 } 4084 /* 4085 * If this operation is not against an iport node, it's 4086 * possible the operation is requested to configure 4087 * root disk by OBP. Unfortunately, prom path is without 4088 * iport string in the boot path. 4089 */ 4090 if (strncmp(nameaddr, "disk@", strlen("disk@")) == 0) { 4091 return (scsi_hba_bus_config_prom_node(self, 4092 flag, arg, childp)); 4093 } 4094 break; 4095 default: 4096 break; 4097 } 4098 #endif 4099 /* 4100 * The request is to configure multi-port HBA. 4101 * Now start to configure iports, for the end 4102 * devices attached to iport, should be configured 4103 * by bus_configure routine of iport 4104 */ 4105 return (scsi_hba_bus_config_iports(self, flag, op, arg, 4106 childp)); 4107 } 4108 4109 #ifdef sparc 4110 if (scsi_hba_iport_unit_address(self)) { 4111 flag &= (~NDI_PROMNAME); 4112 } 4113 #endif 4114 if (tran && tran->tran_bus_config) { 4115 return (tran->tran_bus_config(self, flag, op, arg, childp)); 4116 } 4117 4118 /* 4119 * Force reprobe for BUS_CONFIG_ONE or when manually reconfiguring 4120 * via devfsadm(1m) to emulate deferred attach. 4121 * Reprobe only discovers driver.conf enumerated nodes, more 4122 * dynamic implementations probably require their own bus_config. 4123 */ 4124 if ((op == BUS_CONFIG_ONE) || (flag & NDI_DRV_CONF_REPROBE)) 4125 flag |= NDI_CONFIG_REPROBE; 4126 4127 return (ndi_busop_bus_config(self, flag, op, arg, childp, 0)); 4128 } 4129 4130 static int 4131 scsi_hba_bus_unconfig(dev_info_t *self, uint_t flag, ddi_bus_config_op_t op, 4132 void *arg) 4133 { 4134 scsi_hba_tran_t *tran = NULL; 4135 4136 tran = ddi_get_driver_private(self); 4137 4138 if (tran && tran->tran_bus_unconfig) { 4139 return (tran->tran_bus_unconfig(self, flag, op, arg)); 4140 } 4141 return (ndi_busop_bus_unconfig(self, flag, op, arg)); 4142 } 4143 4144 void 4145 scsi_hba_pkt_comp(struct scsi_pkt *pkt) 4146 { 4147 ASSERT(pkt); 4148 if (pkt->pkt_comp == NULL) 4149 return; 4150 4151 /* 4152 * For HBA drivers that implement tran_setup_pkt(9E), if we are 4153 * completing a 'consistent' mode DMA operation then we must 4154 * perform dma_sync prior to calling pkt_comp to ensure that 4155 * the target driver sees the correct data in memory. 4156 */ 4157 ASSERT((pkt->pkt_flags & FLAG_NOINTR) == 0); 4158 if (((pkt->pkt_dma_flags & DDI_DMA_CONSISTENT) && 4159 (pkt->pkt_dma_flags & DDI_DMA_READ)) && 4160 ((P_TO_TRAN(pkt)->tran_setup_pkt) != NULL)) { 4161 scsi_sync_pkt(pkt); 4162 } 4163 (*pkt->pkt_comp)(pkt); 4164 } 4165