1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/types.h>
27 #include <sys/debug.h>
28 #include <sys/kmem.h>
29 #include <sys/ksynch.h>
30 #ifndef DS_DDICT
31 #include <sys/vnode.h>
32 #endif
33 #include <sys/cmn_err.h>
34 #include <sys/open.h>
35 #include <sys/file.h>
36 #include <sys/cred.h>
37 #include <sys/conf.h>
38 #include <sys/errno.h>
39 #include <sys/uio.h>
40 #ifndef DS_DDICT
41 #include <sys/pathname.h> /* for lookupname */
42 #endif
43 #include <sys/ddi.h>
44 #include <sys/sunddi.h>
45 #include <sys/sunldi.h>
46
47 #include <ns/solaris/nsc_thread.h>
48 #ifdef DS_DDICT
49 #include "../contract.h"
50 #endif
51 #include "../nsctl.h"
52 #include "nskernd.h"
53
54
55 typedef struct raw_maj {
56 struct raw_maj *next;
57 major_t major;
58 struct dev_ops *devops;
59 strategy_fn_t strategy;
60 int (*open)(dev_t *, int, int, cred_t *);
61 int (*close)(dev_t, int, int, cred_t *);
62 int (*ioctl)(dev_t, int, intptr_t, int, cred_t *, int *);
63 } raw_maj_t;
64
65 typedef struct raw_dev {
66 ldi_handle_t lh; /* Solaris layered driver handle */
67 struct vnode *vp; /* vnode of device */
68 uint64_t size; /* size of device in blocks */
69 raw_maj_t *major; /* pointer to major structure */
70 char *path; /* pathname -- kmem_alloc'd */
71 int plen; /* length of kmem_alloc for pathname */
72 dev_t rdev; /* device number */
73 char in_use; /* flag */
74 int partition; /* partition number */
75 } raw_dev_t;
76
77 static int fd_hwm = 0; /* first never used entry in _nsc_raw_files */
78
79 static raw_dev_t *_nsc_raw_files;
80 static raw_maj_t *_nsc_raw_majors;
81
82 kmutex_t _nsc_raw_lock;
83
84 int _nsc_raw_flags = 0; /* required by nsctl */
85 static int _nsc_raw_maxdevs; /* local copy */
86
87 static int _raw_strategy(struct buf *); /* forward decl */
88
89 static dev_t
90 ldi_get_dev_t_from_path(char *path)
91 {
92 vnode_t *vp;
93 dev_t rdev;
94
95 /* Validate parameters */
96 if (path == NULL)
97 return (NULL);
98
99 /* Lookup path */
100 vp = NULL;
101 if (lookupname(path, UIO_SYSSPACE, FOLLOW, NULLVPP, &vp))
102 return (NULL);
103
104 /* Validate resulting vnode */
105 if ((vp) && (vp->v_type == VCHR))
106 rdev = vp->v_rdev;
107 else
108 rdev = (dev_t)NULL;
109
110 /* Release vnode */
111 if (vp)
112 VN_RELE(vp);
113
114 return (rdev);
115 }
116
117 int
118 _nsc_init_raw(int maxdevs)
119 {
120 _nsc_raw_files =
121 kmem_zalloc(sizeof (*_nsc_raw_files) * maxdevs, KM_SLEEP);
122 if (!_nsc_raw_files)
123 return (ENOMEM);
124
125 _nsc_raw_maxdevs = maxdevs;
126 _nsc_raw_majors = NULL;
127
128 mutex_init(&_nsc_raw_lock, NULL, MUTEX_DRIVER, NULL);
129 return (0);
130 }
131
132
133 void
134 _nsc_deinit_raw(void)
135 {
136 raw_maj_t *maj = _nsc_raw_majors;
137 raw_maj_t *next;
138
139 /* Free the memory allocated for strategy pointers */
140 while (maj != NULL) {
141 next = maj->next;
142 kmem_free(maj, sizeof (*maj));
143 maj = next;
144 }
145
146 mutex_destroy(&_nsc_raw_lock);
147 kmem_free(_nsc_raw_files, sizeof (*_nsc_raw_files) * _nsc_raw_maxdevs);
148 _nsc_raw_files = NULL;
149 _nsc_raw_maxdevs = 0;
150 }
151
152
153 /* must be called with the _nsc_raw_lock held */
154 static raw_maj_t *
155 _raw_get_maj_info(major_t umaj)
156 {
157 raw_maj_t *maj = _nsc_raw_majors;
158
159 ASSERT(MUTEX_HELD(&_nsc_raw_lock));
160
161 /* Walk through the linked list */
162 while (maj != NULL) {
163 if (maj->major == umaj) {
164 /* Found major number */
165 break;
166 }
167 maj = maj->next;
168 }
169
170 if (maj == NULL) {
171 struct dev_ops *ops = NULL;
172 #ifdef DEBUG
173 const int maxtry = 5;
174 int try = maxtry;
175 #endif
176
177 /*
178 * The earlier ldi_open call has locked the driver
179 * for this major number into memory, so just index into
180 * the devopsp array to get the dev_ops pointer which
181 * must be valid.
182 */
183
184 ops = devopsp[umaj];
185
186 if (ops == NULL || ops->devo_cb_ops == NULL) {
187 cmn_err(CE_WARN,
188 "nskern: cannot find dev_ops for major %d", umaj);
189
190 return (NULL);
191 }
192
193 #ifdef DEBUG
194 cmn_err(CE_NOTE,
195 "nsc_raw: held driver (%d) after %d attempts",
196 umaj, (maxtry - try));
197 #endif /* DEBUG */
198
199 maj = kmem_zalloc(sizeof (raw_maj_t), KM_NOSLEEP);
200 if (!maj) {
201 return (NULL);
202 }
203
204 maj->strategy = ops->devo_cb_ops->cb_strategy;
205 maj->ioctl = ops->devo_cb_ops->cb_ioctl;
206 maj->close = ops->devo_cb_ops->cb_close;
207 maj->open = ops->devo_cb_ops->cb_open;
208 maj->major = umaj;
209 maj->devops = ops;
210
211 if (maj->strategy == NULL ||
212 maj->strategy == nodev ||
213 maj->strategy == nulldev) {
214 cmn_err(CE_WARN,
215 "nskern: no strategy function for "
216 "disk driver (major %d)",
217 umaj);
218 kmem_free(maj, sizeof (*maj));
219 return (NULL);
220 }
221
222 maj->next = _nsc_raw_majors;
223 _nsc_raw_majors = maj;
224 }
225
226 return (maj);
227 }
228
229
230 /*
231 * nsc_get_strategy returns the strategy function associated with
232 * the major number umaj. NULL is returned if no strategy is found.
233 */
234 strategy_fn_t
235 nsc_get_strategy(major_t umaj)
236 {
237 raw_maj_t *maj;
238 strategy_fn_t strategy = NULL;
239
240 mutex_enter(&_nsc_raw_lock);
241
242 for (maj = _nsc_raw_majors; maj != NULL; maj = maj->next) {
243 if (maj->major == umaj) {
244 /* Found major number */
245 strategy = maj->strategy;
246 break;
247 }
248 }
249
250 mutex_exit(&_nsc_raw_lock);
251
252 return (strategy);
253 }
254
255
256 void *
257 nsc_get_devops(major_t umaj)
258 {
259 raw_maj_t *maj;
260 void *devops = NULL;
261
262 mutex_enter(&_nsc_raw_lock);
263
264 for (maj = _nsc_raw_majors; maj != NULL; maj = maj->next) {
265 if (maj->major == umaj) {
266 devops = maj->devops;
267 break;
268 }
269 }
270
271 mutex_exit(&_nsc_raw_lock);
272
273 return (devops);
274 }
275
276
277 /*
278 * _raw_open
279 *
280 * Multiple opens, single close.
281 */
282
283 /* ARGSUSED */
284 static int
285 _raw_open(char *path, int flag, blind_t *cdp, void *iodev)
286 {
287 struct cred *cred;
288 raw_dev_t *cdi = NULL;
289 char *spath;
290 dev_t rdev;
291 int rc, cd, the_cd;
292 int plen;
293 ldi_ident_t li;
294
295 if (proc_nskernd == NULL) {
296 cmn_err(CE_WARN, "nskern: no nskernd daemon running!");
297 return (ENXIO);
298 }
299
300 if (_nsc_raw_maxdevs == 0) {
301 cmn_err(CE_WARN, "nskern: _raw_open() before _nsc_init_raw()!");
302 return (ENXIO);
303 }
304
305 plen = strlen(path) + 1;
306 spath = kmem_alloc(plen, KM_SLEEP);
307 if (spath == NULL) {
308 cmn_err(CE_WARN,
309 "nskern: unable to alloc memory in _raw_open()");
310 return (ENOMEM);
311 }
312
313 (void) strcpy(spath, path);
314
315 /*
316 * Lookup the vnode to extract the dev_t info,
317 * then release the vnode.
318 */
319 if ((rdev = ldi_get_dev_t_from_path(path)) == 0) {
320 kmem_free(spath, plen);
321 return (ENXIO);
322 }
323
324 /*
325 * See if this device is already opened
326 */
327
328 the_cd = -1;
329
330 mutex_enter(&_nsc_raw_lock);
331
332 for (cd = 0, cdi = _nsc_raw_files; cd < fd_hwm; cd++, cdi++) {
333 if (rdev == cdi->rdev) {
334 the_cd = cd;
335 break;
336 } else if (the_cd == -1 && !cdi->in_use)
337 the_cd = cd;
338 }
339
340 if (the_cd == -1) {
341 if (fd_hwm < _nsc_raw_maxdevs)
342 the_cd = fd_hwm++;
343 else {
344 mutex_exit(&_nsc_raw_lock);
345 cmn_err(CE_WARN, "_raw_open: too many open devices");
346 kmem_free(spath, plen);
347 return (EIO);
348 }
349 }
350
351 cdi = &_nsc_raw_files[the_cd];
352 if (cdi->in_use) {
353 /* already set up - just return */
354 mutex_exit(&_nsc_raw_lock);
355 *cdp = (blind_t)cdi->rdev;
356 kmem_free(spath, plen);
357 return (0);
358 }
359
360 cdi->partition = -1;
361 cdi->size = (uint64_t)0;
362 cdi->rdev = rdev;
363 cdi->path = spath;
364 cdi->plen = plen;
365
366 cred = ddi_get_cred();
367
368 /*
369 * Layered driver
370 *
371 * We use xxx_open_by_dev() since this guarantees that a
372 * specfs vnode is created and used, not a standard filesystem
373 * vnode. This is necessary since in a cluster PXFS will block
374 * vnode operations during switchovers, so we have to use the
375 * underlying specfs vnode not the PXFS vnode.
376 *
377 */
378
379 if ((rc = ldi_ident_from_dev(cdi->rdev, &li)) == 0) {
380 rc = ldi_open_by_dev(&cdi->rdev,
381 OTYP_BLK, FREAD|FWRITE, cred, &cdi->lh, li);
382 }
383 if (rc != 0) {
384 cdi->lh = NULL;
385 goto failed;
386 }
387
388 /*
389 * grab the major_t related information
390 */
391
392 cdi->major = _raw_get_maj_info(getmajor(rdev));
393 if (cdi->major == NULL) {
394 /* Out of memory */
395 cmn_err(CE_WARN,
396 "_raw_open: cannot alloc major number structure");
397
398 rc = ENOMEM;
399 goto failed;
400 }
401
402 *cdp = (blind_t)cdi->rdev;
403 cdi->in_use++;
404
405 mutex_exit(&_nsc_raw_lock);
406
407 return (rc);
408
409 failed:
410
411 if (cdi->lh)
412 (void) ldi_close(cdi->lh, FWRITE|FREAD, cred);
413
414 bzero(cdi, sizeof (*cdi));
415
416 mutex_exit(&_nsc_raw_lock);
417
418 kmem_free(spath, plen);
419 return (rc);
420 }
421
422
423 static int
424 __raw_get_cd(dev_t fd)
425 {
426 int cd;
427
428 if (_nsc_raw_maxdevs != 0) {
429 for (cd = 0; cd < fd_hwm; cd++) {
430 if (fd == _nsc_raw_files[cd].rdev)
431 return (cd);
432 }
433 }
434
435 return (-1);
436 }
437
438
439 /*
440 * _raw_close
441 *
442 * Multiple opens, single close.
443 */
444
445 static int
446 _raw_close(dev_t fd)
447 {
448 struct cred *cred;
449 raw_dev_t *cdi;
450 int rc;
451 int cd;
452
453 mutex_enter(&_nsc_raw_lock);
454
455 if ((cd = __raw_get_cd(fd)) == -1 || !_nsc_raw_files[cd].in_use) {
456 mutex_exit(&_nsc_raw_lock);
457 return (EIO);
458 }
459
460 cdi = &_nsc_raw_files[cd];
461
462 cred = ddi_get_cred();
463
464 rc = ldi_close(cdi->lh, FREAD|FWRITE, cred);
465 if (rc != 0) {
466 mutex_exit(&_nsc_raw_lock);
467 return (rc);
468 }
469
470 kmem_free(cdi->path, cdi->plen);
471
472 bzero(cdi, sizeof (*cdi));
473
474 mutex_exit(&_nsc_raw_lock);
475
476 return (0);
477 }
478
479
480 /* ARGSUSED */
481 static int
482 _raw_uread(dev_t fd, uio_t *uiop, cred_t *crp)
483 {
484 return (physio(_raw_strategy, 0, fd, B_READ, minphys, uiop));
485 }
486
487
488 /* ARGSUSED */
489 static int
490 _raw_uwrite(dev_t fd, uio_t *uiop, cred_t *crp)
491 {
492 return (physio(_raw_strategy, 0, fd, B_WRITE, minphys, uiop));
493 }
494
495
496 static int
497 _raw_strategy(struct buf *bp)
498 {
499 int cd = __raw_get_cd(bp->b_edev);
500
501 if (cd == -1 || _nsc_raw_files[cd].major == NULL) {
502 bioerror(bp, ENXIO);
503 biodone(bp);
504 return (NULL);
505 }
506
507 return ((*_nsc_raw_files[cd].major->strategy)(bp));
508 }
509
510
511 static int
512 _raw_partsize(dev_t fd, nsc_size_t *rvalp)
513 {
514 int cd;
515
516 if ((cd = __raw_get_cd(fd)) == -1 || !_nsc_raw_files[cd].in_use)
517 return (EIO);
518
519 *rvalp = (nsc_size_t)_nsc_raw_files[cd].size;
520 return (0);
521 }
522
523
524 /*
525 * Return largest i/o size.
526 */
527
528 static nsc_size_t nsc_rawmaxfbas = 0;
529 /* ARGSUSED */
530 static int
531 _raw_maxfbas(dev_t dev, int flag, nsc_size_t *ptr)
532 {
533 struct buf *bp;
534 if (flag == NSC_CACHEBLK)
535 *ptr = 1;
536 else {
537 if (nsc_rawmaxfbas == 0) {
538 bp = getrbuf(KM_SLEEP);
539 bp->b_bcount = 4096 * 512;
540 minphys(bp);
541 nsc_rawmaxfbas = FBA_NUM(bp->b_bcount);
542 freerbuf(bp);
543 }
544 *ptr = nsc_rawmaxfbas;
545 }
546 return (0);
547 }
548
549
550 /*
551 * Control device or system.
552 */
553
554 /* ARGSUSED */
555 static int
556 _raw_control(dev_t dev, int cmd, int *ptr)
557 {
558 #ifdef DEBUG
559 cmn_err(CE_WARN, "unrecognised nsc_control: %x", cmd);
560 #endif
561 return (EINVAL); /* no control commands understood */
562 }
563
564
565 static int
566 _raw_get_bsize(dev_t dev, uint64_t *bsizep, int *partitionp)
567 {
568 #ifdef DKIOCPARTITION
569 struct partition64 *p64 = NULL;
570 #endif
571 struct dk_cinfo *dki_info = NULL;
572 struct dev_ops *ops;
573 struct cred *cred;
574 struct vtoc *vtoc = NULL;
575 dev_info_t *dip;
576 raw_dev_t *cdi;
577 int rc, cd;
578 int flags;
579 int rval;
580
581 *partitionp = -1;
582 *bsizep = 0;
583
584 if ((cd = __raw_get_cd(dev)) == -1 || !_nsc_raw_files[cd].in_use)
585 return (-1);
586
587 cdi = &_nsc_raw_files[cd];
588 ops = cdi->major->devops;
589
590 if (ops == NULL) {
591 return (-1);
592 }
593
594 rc = (*ops->devo_getinfo)(NULL, DDI_INFO_DEVT2DEVINFO,
595 (void *)dev, (void **)&dip);
596
597 if (rc != DDI_SUCCESS || dip == NULL) {
598 return (-1);
599 }
600
601 if (!ddi_prop_exists(DDI_DEV_T_ANY, dip,
602 DDI_PROP_DONTPASS | DDI_PROP_NOTPROM, DDI_KERNEL_IOCTL)) {
603 return (-1);
604 }
605
606 cred = ddi_get_cred();
607
608 flags = FKIOCTL | FREAD | FWRITE | DATAMODEL_NATIVE;
609
610 dki_info = kmem_alloc(sizeof (*dki_info), KM_SLEEP);
611
612 /* DKIOCINFO */
613 rc = (*cdi->major->ioctl)(dev, DKIOCINFO,
614 (intptr_t)dki_info, flags, cred, &rval);
615
616 if (rc != 0) {
617 goto out;
618 }
619
620 /* return partition number */
621 *partitionp = (int)dki_info->dki_partition;
622
623 vtoc = kmem_alloc(sizeof (*vtoc), KM_SLEEP);
624
625 /* DKIOCGVTOC */
626 rc = (*cdi->major->ioctl)(dev, DKIOCGVTOC,
627 (intptr_t)vtoc, flags, cred, &rval);
628
629 if (rc) {
630 /* DKIOCGVTOC failed, but there might be an EFI label */
631 rc = -1;
632
633 #ifdef DKIOCPARTITION
634 /* do we have an EFI partition table? */
635 p64 = kmem_alloc(sizeof (*p64), KM_SLEEP);
636 p64->p_partno = (uint_t)*partitionp;
637
638 /* DKIOCPARTITION */
639 rc = (*cdi->major->ioctl)(dev, DKIOCPARTITION,
640 (intptr_t)p64, flags, cred, &rval);
641
642 if (rc == 0) {
643 /* found EFI, return size */
644 *bsizep = (uint64_t)p64->p_size;
645 } else {
646 /* both DKIOCGVTOC and DKIOCPARTITION failed - error */
647 rc = -1;
648 }
649 #endif
650
651 goto out;
652 }
653
654 if ((vtoc->v_sanity != VTOC_SANE) ||
655 (vtoc->v_version != V_VERSION && vtoc->v_version != 0) ||
656 (dki_info->dki_partition > V_NUMPAR)) {
657 rc = -1;
658 goto out;
659 }
660
661 *bsizep = (uint64_t)vtoc->v_part[(int)dki_info->dki_partition].p_size;
662 rc = 0;
663
664 out:
665 if (dki_info) {
666 kmem_free(dki_info, sizeof (*dki_info));
667 }
668
669 if (vtoc) {
670 kmem_free(vtoc, sizeof (*vtoc));
671 }
672
673 #ifdef DKIOCPARTITION
674 if (p64) {
675 kmem_free(p64, sizeof (*p64));
676 }
677 #endif
678
679 return (rc);
680 }
681
682
683 /*
684 * Ugly, ugly, ugly.
685 *
686 * Some volume managers (Veritas) don't support layered ioctls
687 * (no FKIOCTL support, no DDI_KERNEL_IOCTL property defined) AND
688 * do not support the properties for bdev_Size()/bdev_size().
689 *
690 * If the underlying driver has specified DDI_KERNEL_IOCTL, then we use
691 * the FKIOCTL technique. Otherwise ...
692 *
693 * The only reliable way to get the partition size, is to bounce the
694 * command through user land (nskernd).
695 *
696 * Then, SunCluster PXFS blocks access at the vnode level to device
697 * nodes during failover / switchover, so a read_vtoc() function call
698 * from user land deadlocks. So, we end up coming back into the kernel
699 * to go directly to the underlying device driver - that's what
700 * nskern_bsize() is doing below.
701 *
702 * There has to be a better way ...
703 */
704
705 static int
706 _raw_init_dev(dev_t fd, uint64_t *sizep, int *partitionp)
707 {
708 struct nskernd *nsk;
709 int rc, cd;
710
711 if ((cd = __raw_get_cd(fd)) == -1 || !_nsc_raw_files[cd].in_use)
712 return (EIO);
713
714 /* try the in-kernel way */
715
716 rc = _raw_get_bsize(fd, sizep, partitionp);
717 if (rc == 0) {
718 return (0);
719 }
720
721 /* fallback to the the slow way */
722
723 nsk = kmem_zalloc(sizeof (*nsk), KM_SLEEP);
724 nsk->command = NSKERND_BSIZE;
725 nsk->data1 = (uint64_t)0;
726 nsk->data2 = (uint64_t)fd;
727 (void) strncpy(nsk->char1, _nsc_raw_files[cd].path, NSC_MAXPATH);
728
729 rc = nskernd_get(nsk);
730 if (rc == 0) {
731 *partitionp = (int)nsk->data2;
732 *sizep = nsk->data1;
733 }
734
735 kmem_free(nsk, sizeof (*nsk));
736 return (rc < 0 ? EIO : 0);
737 }
738
739
740 static int
741 _raw_attach_io(dev_t fd)
742 {
743 int cd;
744
745 if ((cd = __raw_get_cd(fd)) == -1 || !_nsc_raw_files[cd].in_use)
746 return (EIO);
747
748 return (_raw_init_dev(fd, &_nsc_raw_files[cd].size,
749 &_nsc_raw_files[cd].partition));
750 }
751
752
753 /*
754 * See the comment above _raw_init_dev().
755 */
756
757 int
758 nskern_bsize(struct nscioc_bsize *bsize, int *rvp)
759 {
760 struct cred *cred;
761 raw_dev_t *cdi;
762 int errno = 0;
763 int flag;
764 int cd;
765
766 *rvp = 0;
767
768 if (bsize == NULL || rvp == NULL)
769 return (EINVAL);
770
771 cd = __raw_get_cd(bsize->raw_fd);
772 if (cd == -1 || !_nsc_raw_files[cd].in_use)
773 return (EIO);
774
775 cdi = &_nsc_raw_files[cd];
776 cred = ddi_get_cred();
777
778 /*
779 * ddi_mmap_get_model() returns the model for this user thread
780 * which is what we want - get_udatamodel() is not public.
781 */
782
783 flag = FREAD | FWRITE | ddi_mmap_get_model();
784
785 if (bsize->efi == 0) {
786 /* DKIOCINFO */
787 errno = (*cdi->major->ioctl)(bsize->raw_fd,
788 DKIOCINFO, (intptr_t)bsize->dki_info, flag, cred, rvp);
789
790 if (errno) {
791 return (errno);
792 }
793
794 /* DKIOCGVTOC */
795 errno = (*cdi->major->ioctl)(bsize->raw_fd,
796 DKIOCGVTOC, (intptr_t)bsize->vtoc, flag, cred, rvp);
797
798 if (errno) {
799 return (errno);
800 }
801 } else {
802 #ifdef DKIOCPARTITION
803 /* do we have an EFI partition table? */
804 errno = (*cdi->major->ioctl)(bsize->raw_fd,
805 DKIOCPARTITION, (intptr_t)bsize->p64, flag, cred, rvp);
806
807 if (errno) {
808 return (errno);
809 }
810 #endif
811 }
812
813 return (0);
814 }
815
816
817 /*
818 * Private function for sv to use.
819 */
820 int
821 nskern_partition(dev_t fd, int *partitionp)
822 {
823 uint64_t size;
824 int cd, rc;
825
826 if ((cd = __raw_get_cd(fd)) == -1 || !_nsc_raw_files[cd].in_use)
827 return (EIO);
828
829 if ((*partitionp = _nsc_raw_files[cd].partition) != -1) {
830 return (0);
831 }
832
833 rc = _raw_init_dev(fd, &size, partitionp);
834 if (rc != 0 || *partitionp < 0) {
835 return (EIO);
836 }
837
838 return (0);
839 }
840
841
842 nsc_def_t _nsc_raw_def[] = {
843 { "Open", (uintptr_t)_raw_open, 0 },
844 { "Close", (uintptr_t)_raw_close, 0 },
845 { "Attach", (uintptr_t)_raw_attach_io, 0 },
846 { "UserRead", (uintptr_t)_raw_uread, 0 },
847 { "UserWrite", (uintptr_t)_raw_uwrite, 0 },
848 { "PartSize", (uintptr_t)_raw_partsize, 0 },
849 { "MaxFbas", (uintptr_t)_raw_maxfbas, 0 },
850 { "Control", (uintptr_t)_raw_control, 0 },
851 { "Provide", NSC_DEVICE, 0 },
852 { NULL, (uintptr_t)NULL, 0 }
853 };