LINT build test. Aggregated source code adjustments to bring most of the
[dragonfly.git] / sys / bus / cam / scsi / scsi_pt.c
CommitLineData
984263bc
MD
1/*
2 * Implementation of SCSI Processor Target Peripheral driver for CAM.
3 *
4 * Copyright (c) 1998 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/cam/scsi/scsi_pt.c,v 1.17 2000/01/17 06:27:37 mjacob Exp $
7b95be2a 29 * $DragonFly: src/sys/bus/cam/scsi/scsi_pt.c,v 1.5 2003/07/21 07:57:36 dillon Exp $
984263bc
MD
30 */
31
32#include <sys/param.h>
33#include <sys/queue.h>
34#include <sys/systm.h>
35#include <sys/kernel.h>
36#include <sys/types.h>
37#include <sys/buf.h>
38#include <sys/devicestat.h>
39#include <sys/malloc.h>
40#include <sys/conf.h>
41#include <sys/ptio.h>
42
43#include <cam/cam.h>
44#include <cam/cam_ccb.h>
45#include <cam/cam_extend.h>
46#include <cam/cam_periph.h>
47#include <cam/cam_xpt_periph.h>
48#include <cam/cam_debug.h>
49
50#include <cam/scsi/scsi_all.h>
51#include <cam/scsi/scsi_message.h>
52#include <cam/scsi/scsi_pt.h>
53
54#include "opt_pt.h"
55
56typedef enum {
57 PT_STATE_PROBE,
58 PT_STATE_NORMAL
59} pt_state;
60
61typedef enum {
62 PT_FLAG_NONE = 0x00,
63 PT_FLAG_OPEN = 0x01,
64 PT_FLAG_DEVICE_INVALID = 0x02,
65 PT_FLAG_RETRY_UA = 0x04
66} pt_flags;
67
68typedef enum {
69 PT_CCB_BUFFER_IO = 0x01,
70 PT_CCB_WAITING = 0x02,
71 PT_CCB_RETRY_UA = 0x04,
72 PT_CCB_BUFFER_IO_UA = PT_CCB_BUFFER_IO|PT_CCB_RETRY_UA
73} pt_ccb_state;
74
75/* Offsets into our private area for storing information */
76#define ccb_state ppriv_field0
77#define ccb_bp ppriv_ptr1
78
79struct pt_softc {
80 struct buf_queue_head buf_queue;
81 struct devstat device_stats;
82 LIST_HEAD(, ccb_hdr) pending_ccbs;
83 pt_state state;
84 pt_flags flags;
85 union ccb saved_ccb;
86 int io_timeout;
87 dev_t dev;
88};
89
90static d_open_t ptopen;
91static d_close_t ptclose;
92static d_strategy_t ptstrategy;
93static periph_init_t ptinit;
94static void ptasync(void *callback_arg, u_int32_t code,
95 struct cam_path *path, void *arg);
96static periph_ctor_t ptctor;
97static periph_oninv_t ptoninvalidate;
98static periph_dtor_t ptdtor;
99static periph_start_t ptstart;
100static void ptdone(struct cam_periph *periph,
101 union ccb *done_ccb);
102static d_ioctl_t ptioctl;
103static int pterror(union ccb *ccb, u_int32_t cam_flags,
104 u_int32_t sense_flags);
105
106void scsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries,
107 void (*cbfcnp)(struct cam_periph *, union ccb *),
108 u_int tag_action, int readop, u_int byte2,
109 u_int32_t xfer_len, u_int8_t *data_ptr,
110 u_int8_t sense_len, u_int32_t timeout);
111
112static struct periph_driver ptdriver =
113{
114 ptinit, "pt",
115 TAILQ_HEAD_INITIALIZER(ptdriver.units), /* generation */ 0
116};
117
118DATA_SET(periphdriver_set, ptdriver);
119
120#define PT_CDEV_MAJOR 61
121
122static struct cdevsw pt_cdevsw = {
fabb8ceb
MD
123 /* name */ "pt",
124 /* maj */ PT_CDEV_MAJOR,
125 /* flags */ 0,
126 /* port */ NULL,
127 /* autoq */ 0,
128
984263bc
MD
129 /* open */ ptopen,
130 /* close */ ptclose,
131 /* read */ physread,
132 /* write */ physwrite,
133 /* ioctl */ ptioctl,
134 /* poll */ nopoll,
135 /* mmap */ nommap,
136 /* strategy */ ptstrategy,
984263bc 137 /* dump */ nodump,
fabb8ceb 138 /* psize */ nopsize
984263bc
MD
139};
140
141static struct extend_array *ptperiphs;
142
143#ifndef SCSI_PT_DEFAULT_TIMEOUT
144#define SCSI_PT_DEFAULT_TIMEOUT 60
145#endif
146
147static int
7b95be2a 148ptopen(dev_t dev, int flags, int fmt, struct thread *td)
984263bc
MD
149{
150 struct cam_periph *periph;
151 struct pt_softc *softc;
152 int unit;
153 int error;
154 int s;
155
156 unit = minor(dev);
157 periph = cam_extend_get(ptperiphs, unit);
158 if (periph == NULL)
159 return (ENXIO);
160
161 softc = (struct pt_softc *)periph->softc;
162
163 s = splsoftcam();
164 if (softc->flags & PT_FLAG_DEVICE_INVALID) {
165 splx(s);
166 return(ENXIO);
167 }
168
169 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
170 ("ptopen: dev=%s (unit %d)\n", devtoname(dev), unit));
171
377d4740 172 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
984263bc
MD
173 splx(s);
174 return (error); /* error code from tsleep */
175 }
176
177 splx(s);
178
179 if ((softc->flags & PT_FLAG_OPEN) == 0) {
180 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
181 error = ENXIO;
182 else
183 softc->flags |= PT_FLAG_OPEN;
184 } else
185 error = EBUSY;
186
187 cam_periph_unlock(periph);
188 return (error);
189}
190
191static int
7b95be2a 192ptclose(dev_t dev, int flag, int fmt, struct thread *td)
984263bc
MD
193{
194 struct cam_periph *periph;
195 struct pt_softc *softc;
196 int unit;
197 int error;
198
199 unit = minor(dev);
200 periph = cam_extend_get(ptperiphs, unit);
201 if (periph == NULL)
202 return (ENXIO);
203
204 softc = (struct pt_softc *)periph->softc;
205
377d4740 206 if ((error = cam_periph_lock(periph, 0)) != 0)
984263bc
MD
207 return (error); /* error code from tsleep */
208
209 softc->flags &= ~PT_FLAG_OPEN;
210 cam_periph_unlock(periph);
211 cam_periph_release(periph);
212 return (0);
213}
214
215/*
216 * Actually translate the requested transfer into one the physical driver
217 * can understand. The transfer is described by a buf and will include
218 * only one physical transfer.
219 */
220static void
221ptstrategy(struct buf *bp)
222{
223 struct cam_periph *periph;
224 struct pt_softc *softc;
225 u_int unit;
226 int s;
227
228 unit = minor(bp->b_dev);
229 periph = cam_extend_get(ptperiphs, unit);
230 if (periph == NULL) {
231 bp->b_error = ENXIO;
232 goto bad;
233 }
234 softc = (struct pt_softc *)periph->softc;
235
236 /*
237 * Mask interrupts so that the pack cannot be invalidated until
238 * after we are in the queue. Otherwise, we might not properly
239 * clean up one of the buffers.
240 */
241 s = splbio();
242
243 /*
244 * If the device has been made invalid, error out
245 */
246 if ((softc->flags & PT_FLAG_DEVICE_INVALID)) {
247 splx(s);
248 bp->b_error = ENXIO;
249 goto bad;
250 }
251
252 /*
253 * Place it in the queue of disk activities for this disk
254 */
255 bufq_insert_tail(&softc->buf_queue, bp);
256
257 splx(s);
258
259 /*
260 * Schedule ourselves for performing the work.
261 */
262 xpt_schedule(periph, /* XXX priority */1);
263
264 return;
265bad:
266 bp->b_flags |= B_ERROR;
267
268 /*
269 * Correctly set the buf to indicate a completed xfer
270 */
271 bp->b_resid = bp->b_bcount;
272 biodone(bp);
273}
274
275static void
276ptinit(void)
277{
278 cam_status status;
279 struct cam_path *path;
280
281 /*
282 * Create our extend array for storing the devices we attach to.
283 */
284 ptperiphs = cam_extend_new();
285 if (ptperiphs == NULL) {
286 printf("pt: Failed to alloc extend array!\n");
287 return;
288 }
289
290 /*
291 * Install a global async callback. This callback will
292 * receive async callbacks like "new device found".
293 */
294 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
295 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
296
297 if (status == CAM_REQ_CMP) {
298 struct ccb_setasync csa;
299
300 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
301 csa.ccb_h.func_code = XPT_SASYNC_CB;
302 csa.event_enable = AC_FOUND_DEVICE;
303 csa.callback = ptasync;
304 csa.callback_arg = NULL;
305 xpt_action((union ccb *)&csa);
306 status = csa.ccb_h.status;
307 xpt_free_path(path);
308 }
309
310 if (status != CAM_REQ_CMP) {
311 printf("pt: Failed to attach master async callback "
312 "due to status 0x%x!\n", status);
313 }
314}
315
316static cam_status
317ptctor(struct cam_periph *periph, void *arg)
318{
319 struct pt_softc *softc;
320 struct ccb_setasync csa;
321 struct ccb_getdev *cgd;
322
323 cgd = (struct ccb_getdev *)arg;
324 if (periph == NULL) {
325 printf("ptregister: periph was NULL!!\n");
326 return(CAM_REQ_CMP_ERR);
327 }
328
329 if (cgd == NULL) {
330 printf("ptregister: no getdev CCB, can't register device\n");
331 return(CAM_REQ_CMP_ERR);
332 }
333
334 softc = (struct pt_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
335
336 if (softc == NULL) {
337 printf("daregister: Unable to probe new device. "
338 "Unable to allocate softc\n");
339 return(CAM_REQ_CMP_ERR);
340 }
341
342 bzero(softc, sizeof(*softc));
343 LIST_INIT(&softc->pending_ccbs);
344 softc->state = PT_STATE_NORMAL;
345 bufq_init(&softc->buf_queue);
346
347 softc->io_timeout = SCSI_PT_DEFAULT_TIMEOUT * 1000;
348
349 periph->softc = softc;
350
351 cam_extend_set(ptperiphs, periph->unit_number, periph);
352
353 devstat_add_entry(&softc->device_stats, "pt",
354 periph->unit_number, 0,
355 DEVSTAT_NO_BLOCKSIZE,
356 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
357 DEVSTAT_PRIORITY_OTHER);
358
359 softc->dev = make_dev(&pt_cdevsw, periph->unit_number, UID_ROOT,
360 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
361 periph->unit_number);
362 /*
363 * Add async callbacks for bus reset and
364 * bus device reset calls. I don't bother
365 * checking if this fails as, in most cases,
366 * the system will function just fine without
367 * them and the only alternative would be to
368 * not attach the device on failure.
369 */
370 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
371 csa.ccb_h.func_code = XPT_SASYNC_CB;
372 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
373 csa.callback = ptasync;
374 csa.callback_arg = periph;
375 xpt_action((union ccb *)&csa);
376
377 /* Tell the user we've attached to the device */
378 xpt_announce_periph(periph, NULL);
379
380 return(CAM_REQ_CMP);
381}
382
383static void
384ptoninvalidate(struct cam_periph *periph)
385{
386 int s;
387 struct pt_softc *softc;
388 struct buf *q_bp;
389 struct ccb_setasync csa;
390
391 softc = (struct pt_softc *)periph->softc;
392
393 /*
394 * De-register any async callbacks.
395 */
396 xpt_setup_ccb(&csa.ccb_h, periph->path,
397 /* priority */ 5);
398 csa.ccb_h.func_code = XPT_SASYNC_CB;
399 csa.event_enable = 0;
400 csa.callback = ptasync;
401 csa.callback_arg = periph;
402 xpt_action((union ccb *)&csa);
403
404 softc->flags |= PT_FLAG_DEVICE_INVALID;
405
406 /*
407 * Although the oninvalidate() routines are always called at
408 * splsoftcam, we need to be at splbio() here to keep the buffer
409 * queue from being modified while we traverse it.
410 */
411 s = splbio();
412
413 /*
414 * Return all queued I/O with ENXIO.
415 * XXX Handle any transactions queued to the card
416 * with XPT_ABORT_CCB.
417 */
418 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
419 bufq_remove(&softc->buf_queue, q_bp);
420 q_bp->b_resid = q_bp->b_bcount;
421 q_bp->b_error = ENXIO;
422 q_bp->b_flags |= B_ERROR;
423 biodone(q_bp);
424 }
425
426 splx(s);
427
428 xpt_print_path(periph->path);
429 printf("lost device\n");
430}
431
432static void
433ptdtor(struct cam_periph *periph)
434{
435 struct pt_softc *softc;
436
437 softc = (struct pt_softc *)periph->softc;
438
439 devstat_remove_entry(&softc->device_stats);
440
441 destroy_dev(softc->dev);
442
443 cam_extend_release(ptperiphs, periph->unit_number);
444 xpt_print_path(periph->path);
445 printf("removing device entry\n");
446 free(softc, M_DEVBUF);
447}
448
449static void
450ptasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
451{
452 struct cam_periph *periph;
453
454 periph = (struct cam_periph *)callback_arg;
455 switch (code) {
456 case AC_FOUND_DEVICE:
457 {
458 struct ccb_getdev *cgd;
459 cam_status status;
460
461 cgd = (struct ccb_getdev *)arg;
462
463 if (SID_TYPE(&cgd->inq_data) != T_PROCESSOR)
464 break;
465
466 /*
467 * Allocate a peripheral instance for
468 * this device and start the probe
469 * process.
470 */
471 status = cam_periph_alloc(ptctor, ptoninvalidate, ptdtor,
472 ptstart, "pt", CAM_PERIPH_BIO,
473 cgd->ccb_h.path, ptasync,
474 AC_FOUND_DEVICE, cgd);
475
476 if (status != CAM_REQ_CMP
477 && status != CAM_REQ_INPROG)
478 printf("ptasync: Unable to attach to new device "
479 "due to status 0x%x\n", status);
480 break;
481 }
482 case AC_SENT_BDR:
483 case AC_BUS_RESET:
484 {
485 struct pt_softc *softc;
486 struct ccb_hdr *ccbh;
487 int s;
488
489 softc = (struct pt_softc *)periph->softc;
490 s = splsoftcam();
491 /*
492 * Don't fail on the expected unit attention
493 * that will occur.
494 */
495 softc->flags |= PT_FLAG_RETRY_UA;
496 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
497 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
498 ccbh->ccb_state |= PT_CCB_RETRY_UA;
499 splx(s);
500 /* FALLTHROUGH */
501 }
502 default:
503 cam_periph_async(periph, code, path, arg);
504 break;
505 }
506}
507
508static void
509ptstart(struct cam_periph *periph, union ccb *start_ccb)
510{
511 struct pt_softc *softc;
512 struct buf *bp;
513 int s;
514
515 softc = (struct pt_softc *)periph->softc;
516
517 /*
518 * See if there is a buf with work for us to do..
519 */
520 s = splbio();
521 bp = bufq_first(&softc->buf_queue);
522 if (periph->immediate_priority <= periph->pinfo.priority) {
523 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
524 ("queuing for immediate ccb\n"));
525 start_ccb->ccb_h.ccb_state = PT_CCB_WAITING;
526 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
527 periph_links.sle);
528 periph->immediate_priority = CAM_PRIORITY_NONE;
529 splx(s);
530 wakeup(&periph->ccb_list);
531 } else if (bp == NULL) {
532 splx(s);
533 xpt_release_ccb(start_ccb);
534 } else {
535 int oldspl;
536
537 bufq_remove(&softc->buf_queue, bp);
538
539 devstat_start_transaction(&softc->device_stats);
540
541 scsi_send_receive(&start_ccb->csio,
542 /*retries*/4,
543 ptdone,
544 MSG_SIMPLE_Q_TAG,
545 bp->b_flags & B_READ,
546 /*byte2*/0,
547 bp->b_bcount,
548 bp->b_data,
549 /*sense_len*/SSD_FULL_SIZE,
550 /*timeout*/softc->io_timeout);
551
552 start_ccb->ccb_h.ccb_state = PT_CCB_BUFFER_IO;
553
554 /*
555 * Block out any asyncronous callbacks
556 * while we touch the pending ccb list.
557 */
558 oldspl = splcam();
559 LIST_INSERT_HEAD(&softc->pending_ccbs, &start_ccb->ccb_h,
560 periph_links.le);
561 splx(oldspl);
562
563 start_ccb->ccb_h.ccb_bp = bp;
564 bp = bufq_first(&softc->buf_queue);
565 splx(s);
566
567 xpt_action(start_ccb);
568
569 if (bp != NULL) {
570 /* Have more work to do, so ensure we stay scheduled */
571 xpt_schedule(periph, /* XXX priority */1);
572 }
573 }
574}
575
576static void
577ptdone(struct cam_periph *periph, union ccb *done_ccb)
578{
579 struct pt_softc *softc;
580 struct ccb_scsiio *csio;
581
582 softc = (struct pt_softc *)periph->softc;
583 csio = &done_ccb->csio;
584 switch (csio->ccb_h.ccb_state) {
585 case PT_CCB_BUFFER_IO:
586 case PT_CCB_BUFFER_IO_UA:
587 {
588 struct buf *bp;
589 int oldspl;
590
591 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
592 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
593 int error;
594 int s;
595 int sf;
596
597 if ((csio->ccb_h.ccb_state & PT_CCB_RETRY_UA) != 0)
598 sf = SF_RETRY_UA;
599 else
600 sf = 0;
601
602 sf |= SF_RETRY_SELTO;
603
604 if ((error = pterror(done_ccb, 0, sf)) == ERESTART) {
605 /*
606 * A retry was scheuled, so
607 * just return.
608 */
609 return;
610 }
611 if (error != 0) {
612 struct buf *q_bp;
613
614 s = splbio();
615
616 if (error == ENXIO) {
617 /*
618 * Catastrophic error. Mark our device
619 * as invalid.
620 */
621 xpt_print_path(periph->path);
622 printf("Invalidating device\n");
623 softc->flags |= PT_FLAG_DEVICE_INVALID;
624 }
625
626 /*
627 * return all queued I/O with EIO, so that
628 * the client can retry these I/Os in the
629 * proper order should it attempt to recover.
630 */
631 while ((q_bp = bufq_first(&softc->buf_queue))
632 != NULL) {
633 bufq_remove(&softc->buf_queue, q_bp);
634 q_bp->b_resid = q_bp->b_bcount;
635 q_bp->b_error = EIO;
636 q_bp->b_flags |= B_ERROR;
637 biodone(q_bp);
638 }
639 splx(s);
640 bp->b_error = error;
641 bp->b_resid = bp->b_bcount;
642 bp->b_flags |= B_ERROR;
643 } else {
644 bp->b_resid = csio->resid;
645 bp->b_error = 0;
646 if (bp->b_resid != 0) {
647 /* Short transfer ??? */
648 bp->b_flags |= B_ERROR;
649 }
650 }
651 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
652 cam_release_devq(done_ccb->ccb_h.path,
653 /*relsim_flags*/0,
654 /*reduction*/0,
655 /*timeout*/0,
656 /*getcount_only*/0);
657 } else {
658 bp->b_resid = csio->resid;
659 if (bp->b_resid != 0)
660 bp->b_flags |= B_ERROR;
661 }
662
663 /*
664 * Block out any asyncronous callbacks
665 * while we touch the pending ccb list.
666 */
667 oldspl = splcam();
668 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
669 splx(oldspl);
670
671 devstat_end_transaction_buf(&softc->device_stats, bp);
672 biodone(bp);
673 break;
674 }
675 case PT_CCB_WAITING:
676 /* Caller will release the CCB */
677 wakeup(&done_ccb->ccb_h.cbfcnp);
678 return;
679 }
680 xpt_release_ccb(done_ccb);
681}
682
683static int
684pterror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
685{
686 struct pt_softc *softc;
687 struct cam_periph *periph;
688
689 periph = xpt_path_periph(ccb->ccb_h.path);
690 softc = (struct pt_softc *)periph->softc;
691
692 return(cam_periph_error(ccb, cam_flags, sense_flags,
693 &softc->saved_ccb));
694}
695
696static int
7b95be2a 697ptioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
984263bc
MD
698{
699 struct cam_periph *periph;
700 struct pt_softc *softc;
701 int unit;
702 int error;
703
704 unit = minor(dev);
705 periph = cam_extend_get(ptperiphs, unit);
706
707 if (periph == NULL)
708 return(ENXIO);
709
710 softc = (struct pt_softc *)periph->softc;
711
377d4740 712 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
984263bc
MD
713 return (error); /* error code from tsleep */
714 }
715
716 switch(cmd) {
717 case PTIOCGETTIMEOUT:
718 if (softc->io_timeout >= 1000)
719 *(int *)addr = softc->io_timeout / 1000;
720 else
721 *(int *)addr = 0;
722 break;
723 case PTIOCSETTIMEOUT:
724 {
725 int s;
726
727 if (*(int *)addr < 1) {
728 error = EINVAL;
729 break;
730 }
731
732 s = splsoftcam();
733 softc->io_timeout = *(int *)addr * 1000;
734 splx(s);
735
736 break;
737 }
738 default:
739 error = cam_periph_ioctl(periph, cmd, addr, pterror);
740 break;
741 }
742
743 cam_periph_unlock(periph);
744
745 return(error);
746}
747
748void
749scsi_send_receive(struct ccb_scsiio *csio, u_int32_t retries,
750 void (*cbfcnp)(struct cam_periph *, union ccb *),
751 u_int tag_action, int readop, u_int byte2,
752 u_int32_t xfer_len, u_int8_t *data_ptr, u_int8_t sense_len,
753 u_int32_t timeout)
754{
755 struct scsi_send_receive *scsi_cmd;
756
757 scsi_cmd = (struct scsi_send_receive *)&csio->cdb_io.cdb_bytes;
758 scsi_cmd->opcode = readop ? RECEIVE : SEND;
759 scsi_cmd->byte2 = byte2;
760 scsi_ulto3b(xfer_len, scsi_cmd->xfer_len);
761 scsi_cmd->control = 0;
762
763 cam_fill_csio(csio,
764 retries,
765 cbfcnp,
766 /*flags*/readop ? CAM_DIR_IN : CAM_DIR_OUT,
767 tag_action,
768 data_ptr,
769 xfer_len,
770 sense_len,
771 sizeof(*scsi_cmd),
772 timeout);
773}