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DEVFS - remove dev_ops_add(), dev_ops_get(), and get_dev()
[dragonfly.git] / sys / bus / cam / scsi / scsi_sa.c
CommitLineData
984263bc
MD		 1/*
2 * $FreeBSD: src/sys/cam/scsi/scsi_sa.c,v 1.45.2.13 2002/12/17 17:08:50 trhodes Exp $
2d19cdd3 3 * $DragonFly: src/sys/bus/cam/scsi/scsi_sa.c,v 1.36 2008/07/18 00:07:23 dillon Exp $
984263bc
MD		 4 *
5 * Implementation of SCSI Sequential Access Peripheral driver for CAM.
6 *
7 * Copyright (c) 1999, 2000 Matthew Jacob
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions, and the following disclaimer,
15 * without modification, immediately at the beginning of the file.
16 * 2. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 */
32
33#include <sys/param.h>
34#include <sys/queue.h>
35#ifdef _KERNEL
36#include <sys/systm.h>
37#include <sys/kernel.h>
38#endif
39#include <sys/types.h>
05220613 40#ifdef _KERNEL
984263bc
MD		 41#include <sys/buf.h>
42#include <sys/malloc.h>
05220613 43#endif
984263bc
MD		 44#include <sys/mtio.h>
45#include <sys/conf.h>
05220613 46#ifdef _KERNEL
3020e3be
MD		 47#include <sys/proc.h>
48#include <sys/buf2.h>
4e01b467 49#include <sys/thread2.h>
05220613 50#endif
35872d89 51#include <sys/fcntl.h>
984263bc
MD		 52#include <sys/devicestat.h>
53#include <machine/limits.h>
54
55#ifndef _KERNEL
56#include <stdio.h>
57#include <string.h>
58#endif
59
1f2de5d4
MD		 60#include "../cam.h"
61#include "../cam_ccb.h"
62#include "../cam_extend.h"
63#include "../cam_periph.h"
64#include "../cam_xpt_periph.h"
65#include "../cam_debug.h"
984263bc 66
1f2de5d4
MD		 67#include "scsi_all.h"
68#include "scsi_message.h"
69#include "scsi_sa.h"
984263bc
MD		 70
71#ifdef _KERNEL
72
73#include <opt_sa.h>
74
75#ifndef SA_IO_TIMEOUT
76#define SA_IO_TIMEOUT 4
77#endif
78#ifndef SA_SPACE_TIMEOUT
79#define SA_SPACE_TIMEOUT 1 * 60
80#endif
81#ifndef SA_REWIND_TIMEOUT
82#define SA_REWIND_TIMEOUT 2 * 60
83#endif
84#ifndef SA_ERASE_TIMEOUT
85#define SA_ERASE_TIMEOUT 4 * 60
86#endif
87
88#define SCSIOP_TIMEOUT (60 * 1000) /* not an option */
89
90#define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000)
91#define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000)
92#define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000)
93#define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000)
94
95/*
96 * Additional options that can be set for config: SA_1FM_AT_EOT
97 */
98
99#ifndef UNUSED_PARAMETER
100#define UNUSED_PARAMETER(x) x = x
101#endif
102
103#define QFRLS(ccb) \
104 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \
105 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE)
106
107/*
108 * Driver states
109 */
110
bc6e3c73 111MALLOC_DEFINE(M_SCSISA, "SCSI sa", "SCSI sequential access buffers");
984263bc
MD		 112
113typedef enum {
114 SA_STATE_NORMAL, SA_STATE_ABNORMAL
115} sa_state;
116
117#define ccb_pflags ppriv_field0
81b5c339 118#define ccb_bio ppriv_ptr1
984263bc
MD		 119
120#define SA_CCB_BUFFER_IO 0x0
121#define SA_CCB_WAITING 0x1
122#define SA_CCB_TYPEMASK 0x1
123#define SA_POSITION_UPDATED 0x2
124
125#define Set_CCB_Type(x, type) \
126 x->ccb_h.ccb_pflags &= ~SA_CCB_TYPEMASK; \
127 x->ccb_h.ccb_pflags |= type
128
129#define CCB_Type(x) (x->ccb_h.ccb_pflags & SA_CCB_TYPEMASK)
130
131
132
133typedef enum {
134 SA_FLAG_OPEN = 0x0001,
135 SA_FLAG_FIXED = 0x0002,
136 SA_FLAG_TAPE_LOCKED = 0x0004,
137 SA_FLAG_TAPE_MOUNTED = 0x0008,
138 SA_FLAG_TAPE_WP = 0x0010,
139 SA_FLAG_TAPE_WRITTEN = 0x0020,
140 SA_FLAG_EOM_PENDING = 0x0040,
141 SA_FLAG_EIO_PENDING = 0x0080,
142 SA_FLAG_EOF_PENDING = 0x0100,
143 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING|
144 SA_FLAG_EOF_PENDING),
145 SA_FLAG_INVALID = 0x0200,
146 SA_FLAG_COMP_ENABLED = 0x0400,
147 SA_FLAG_COMP_SUPP = 0x0800,
148 SA_FLAG_COMP_UNSUPP = 0x1000,
149 SA_FLAG_TAPE_FROZEN = 0x2000
150} sa_flags;
151
152typedef enum {
153 SA_MODE_REWIND = 0x00,
154 SA_MODE_NOREWIND = 0x01,
155 SA_MODE_OFFLINE = 0x02
156} sa_mode;
157
158typedef enum {
159 SA_PARAM_NONE = 0x00,
160 SA_PARAM_BLOCKSIZE = 0x01,
161 SA_PARAM_DENSITY = 0x02,
162 SA_PARAM_COMPRESSION = 0x04,
163 SA_PARAM_BUFF_MODE = 0x08,
164 SA_PARAM_NUMBLOCKS = 0x10,
165 SA_PARAM_WP = 0x20,
166 SA_PARAM_SPEED = 0x40,
167 SA_PARAM_ALL = 0x7f
168} sa_params;
169
170typedef enum {
171 SA_QUIRK_NONE = 0x00,
172 SA_QUIRK_NOCOMP = 0x01, /* Can't deal with compression at all */
173 SA_QUIRK_FIXED = 0x02, /* Force fixed mode */
174 SA_QUIRK_VARIABLE = 0x04, /* Force variable mode */
175 SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */
176 SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */
177 SA_QUIRK_NODREAD = 0x20, /* Don't try and dummy read density */
178 SA_QUIRK_NO_MODESEL = 0x40, /* Don't do mode select at all */
179 SA_QUIRK_NO_CPAGE = 0x80 /* Don't use DEVICE COMPRESSION page */
180} sa_quirks;
181
182/* units are bits 4-7, 16-21 (1024 units) */
183#define SAUNIT(DEV) \
184 (((minor(DEV) & 0xF0) >> 4) | ((minor(DEV) & 0x3f0000) >> 16))
185
186#define SAMODE(z) ((minor(z) & 0x3))
187#define SADENSITY(z) (((minor(z) >> 2) & 0x3))
188#define SA_IS_CTRL(z) (minor(z) & (1 << 29))
189
190#define SA_NOT_CTLDEV 0
191#define SA_CTLDEV 1
192
193#define SA_ATYPE_R 0
194#define SA_ATYPE_NR 1
195#define SA_ATYPE_ER 2
196
197#define SAMINOR(ctl, unit, mode, access) \
198 ((ctl << 29) | ((unit & 0x3f0) << 16) | ((unit & 0xf) << 4) | \
199 (mode << 0x2) | (access & 0x3))
200
e4c9c0c8
MD		 201#define SA_UNITMASK SAMINOR(0, -1, 0, 0)
202#define SA_UNIT(unit) SAMINOR(0, unit, 0, 0)
203
984263bc 204#define SA_NUM_MODES 4
984263bc
MD		 205
206struct sa_softc {
207 sa_state state;
208 sa_flags flags;
209 sa_quirks quirks;
81b5c339 210 struct bio_queue_head bio_queue;
984263bc
MD		 211 int queue_count;
212 struct devstat device_stats;
984263bc
MD		 213 int blk_gran;
214 int blk_mask;
215 int blk_shift;
216 u_int32_t max_blk;
217 u_int32_t min_blk;
218 u_int32_t comp_algorithm;
219 u_int32_t saved_comp_algorithm;
220 u_int32_t media_blksize;
221 u_int32_t last_media_blksize;
222 u_int32_t media_numblks;
223 u_int8_t media_density;
224 u_int8_t speed;
225 u_int8_t scsi_rev;
226 u_int8_t dsreg; /* mtio mt_dsreg, redux */
227 int buffer_mode;
228 int filemarks;
229 union ccb saved_ccb;
230 int last_resid_was_io;
231
232 /*
233 * Relative to BOT Location.
234 */
235 daddr_t fileno;
236 daddr_t blkno;
237
238 /*
239 * Latched Error Info
240 */
241 struct {
242 struct scsi_sense_data _last_io_sense;
243 u_int32_t _last_io_resid;
244 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN];
245 struct scsi_sense_data _last_ctl_sense;
246 u_int32_t _last_ctl_resid;
247 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN];
248#define last_io_sense errinfo._last_io_sense
249#define last_io_resid errinfo._last_io_resid
250#define last_io_cdb errinfo._last_io_cdb
251#define last_ctl_sense errinfo._last_ctl_sense
252#define last_ctl_resid errinfo._last_ctl_resid
253#define last_ctl_cdb errinfo._last_ctl_cdb
254 } errinfo;
255 /*
256 * Misc other flags/state
257 */
258 u_int32_t
35872d89
PA		 259 : 29,
260 open_rdonly : 1, /* open read-only */
261 open_pending_mount : 1, /* open pending mount */
262 ctrl_mode : 1; /* control device open */
984263bc
MD		 263};
264
265struct sa_quirk_entry {
266 struct scsi_inquiry_pattern inq_pat; /* matching pattern */
267 sa_quirks quirks; /* specific quirk type */
268 u_int32_t prefblk; /* preferred blocksize when in fixed mode */
269};
270
271static struct sa_quirk_entry sa_quirk_table[] =
272{
273 {
274 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream",
275 "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD |
276 SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768
277 },
278 {
279 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
280 "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0
281 },
282 {
283 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
284 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
285 },
286 {
287 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
288 "Python*", "*"}, SA_QUIRK_NODREAD, 0
289 },
290 {
291 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
292 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
293 },
294 {
295 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
296 "VIPER 2525 25462", "-011"},
297 SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0
298 },
299 {
300 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
301 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
302 },
303#if 0
304 {
305 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
306 "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0,
307 },
308#endif
d92d7552
PA		 309 {
310 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
984263bc
MD		 311 "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
312 },
313 {
314 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
315 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
316 },
317 {
318 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
319 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
320 },
321 {
322 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
323 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
324 },
325 {
326 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
327 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
328 },
329 {
330 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA",
331 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
332 },
333 { /* jreynold@primenet.com */
334 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
335 "STT8000N*", "*"}, SA_QUIRK_1FM, 0
336 },
337 { /* mike@sentex.net */
338 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
339 "STT20000*", "*"}, SA_QUIRK_1FM, 0
340 },
341 {
342 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
343 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
344 },
345 {
346 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
347 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
348 },
349 {
350 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
351 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
352 },
353 {
354 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
355 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
356 },
357 {
358 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
359 " SLR*", "*"}, SA_QUIRK_1FM, 0
360 },
361 {
362 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
363 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
364 },
365 {
366 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
367 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
368 }
369};
370
371static d_open_t saopen;
372static d_close_t saclose;
373static d_strategy_t sastrategy;
374static d_ioctl_t saioctl;
375static periph_init_t sainit;
376static periph_ctor_t saregister;
377static periph_oninv_t saoninvalidate;
378static periph_dtor_t sacleanup;
379static periph_start_t sastart;
380static void saasync(void *callback_arg, u_int32_t code,
381 struct cam_path *path, void *arg);
382static void sadone(struct cam_periph *periph,
383 union ccb *start_ccb);
384static int saerror(union ccb *ccb, u_int32_t cam_flags,
385 u_int32_t sense_flags);
386static int samarkswanted(struct cam_periph *);
387static int sacheckeod(struct cam_periph *periph);
388static int sagetparams(struct cam_periph *periph,
389 sa_params params_to_get,
390 u_int32_t *blocksize, u_int8_t *density,
391 u_int32_t *numblocks, int *buff_mode,
392 u_int8_t *write_protect, u_int8_t *speed,
393 int *comp_supported, int *comp_enabled,
394 u_int32_t *comp_algorithm,
395 sa_comp_t *comp_page);
396static int sasetparams(struct cam_periph *periph,
397 sa_params params_to_set,
398 u_int32_t blocksize, u_int8_t density,
399 u_int32_t comp_algorithm,
400 u_int32_t sense_flags);
401static void saprevent(struct cam_periph *periph, int action);
402static int sarewind(struct cam_periph *periph);
403static int saspace(struct cam_periph *periph, int count,
404 scsi_space_code code);
b13267a5 405static int samount(struct cam_periph *, int, cdev_t);
984263bc
MD		 406static int saretension(struct cam_periph *periph);
407static int sareservereleaseunit(struct cam_periph *periph,
408 int reserve);
409static int saloadunload(struct cam_periph *periph, int load);
410static int saerase(struct cam_periph *periph, int longerase);
411static int sawritefilemarks(struct cam_periph *periph,
412 int nmarks, int setmarks);
413static int sardpos(struct cam_periph *periph, int, u_int32_t *);
414static int sasetpos(struct cam_periph *periph, int, u_int32_t *);
415
416
417static struct periph_driver sadriver =
418{
419 sainit, "sa",
420 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0
421};
422
2ad14cb5 423PERIPHDRIVER_DECLARE(sa, sadriver);
984263bc
MD		 424
425/* For 2.2-stable support */
426#ifndef D_TAPE
427#define D_TAPE 0
428#endif
429
430#define SA_CDEV_MAJOR 14
431
fef8985e
MD		 432static struct dev_ops sa_ops = {
433 { "sa", SA_CDEV_MAJOR, D_TAPE },
434 .d_open = saopen,
435 .d_close = saclose,
436 .d_read = physread,
437 .d_write = physwrite,
438 .d_ioctl = saioctl,
439 .d_strategy = sastrategy,
984263bc
MD		 440};
441
442static struct extend_array *saperiphs;
443
444static int
fef8985e 445saopen(struct dev_open_args *ap)
984263bc 446{
b13267a5 447 cdev_t dev = ap->a_head.a_dev;
984263bc
MD		 448 struct cam_periph *periph;
449 struct sa_softc *softc;
450 int unit;
984263bc 451 int error;
984263bc
MD		 452
453 unit = SAUNIT(dev);
984263bc 454
984263bc 455 periph = cam_extend_get(saperiphs, unit);
1c8b7a9a
PA		 456 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
457 return (ENXIO);
984263bc 458 }
1c8b7a9a
PA		 459
460 cam_periph_lock(periph);
461
984263bc 462 softc = (struct sa_softc *)periph->softc;
984263bc
MD		 463
464 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
465 ("saopen(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
466
984263bc
MD		 467 if (SA_IS_CTRL(dev)) {
468 softc->ctrl_mode = 1;
469 cam_periph_unlock(periph);
470 return (0);
471 }
472
1c8b7a9a
PA		 473 if ((error = cam_periph_hold(periph, PCATCH)) != 0) {
474 cam_periph_unlock(periph);
475 cam_periph_release(periph);
476 return (error);
477 }
478
984263bc
MD		 479 if (softc->flags & SA_FLAG_OPEN) {
480 error = EBUSY;
481 } else if (softc->flags & SA_FLAG_INVALID) {
482 error = ENXIO;
483 } else {
484 /*
35872d89
PA		 485 * Preserve whether this is a read_only open.
486 */
487 softc->open_rdonly = (ap->a_oflags & O_RDWR) == O_RDONLY;
488
489 /*
984263bc
MD		 490 * The function samount ensures media is loaded and ready.
491 * It also does a device RESERVE if the tape isn't yet mounted.
35872d89
PA		 492 *
493 * If the mount fails and this was a non-blocking open,
494 * make this a 'open_pending_mount' action.
984263bc 495 */
fef8985e 496 error = samount(periph, ap->a_oflags, dev);
35872d89
PA		 497 if (error && (ap->a_oflags & O_NONBLOCK)) {
498 softc->flags |= SA_FLAG_OPEN;
499 softc->open_pending_mount = 1;
2d19cdd3 500 cam_periph_unhold(periph, 1);
35872d89
PA		 501 return (0);
502 }
984263bc
MD		 503 }
504
505 if (error) {
2d19cdd3 506 cam_periph_unhold(periph, 1);
984263bc 507 cam_periph_release(periph);
1c8b7a9a 508 return (error);
984263bc 509 }
1c8b7a9a
PA		 510
511 saprevent(periph, PR_PREVENT);
512 softc->flags |= SA_FLAG_OPEN;
513
2d19cdd3 514 cam_periph_unhold(periph, 1);
984263bc
MD		 515 return (error);
516}
517
518static int
fef8985e 519saclose(struct dev_close_args *ap)
984263bc 520{
b13267a5 521 cdev_t dev = ap->a_head.a_dev;
984263bc
MD		 522 struct cam_periph *periph;
523 struct sa_softc *softc;
524 int unit, mode, error, writing, tmp;
525 int closedbits = SA_FLAG_OPEN;
526
527 unit = SAUNIT(dev);
528 mode = SAMODE(dev);
529 periph = cam_extend_get(saperiphs, unit);
530 if (periph == NULL)
531 return (ENXIO);
532
1c8b7a9a
PA		 533 cam_periph_lock(periph);
534
984263bc
MD		 535 softc = (struct sa_softc *)periph->softc;
536
537 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
538 ("saclose(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
539
540
35872d89 541 softc->open_rdonly = 0;
984263bc
MD		 542 if (SA_IS_CTRL(dev)) {
543 softc->ctrl_mode = 0;
984263bc 544 cam_periph_unlock(periph);
1c8b7a9a 545 cam_periph_release(periph);
984263bc
MD		 546 return (0);
547 }
548
35872d89
PA		 549 if (softc->open_pending_mount) {
550 softc->flags &= ~SA_FLAG_OPEN;
551 softc->open_pending_mount = 0;
35872d89 552 cam_periph_unlock(periph);
1c8b7a9a 553 cam_periph_release(periph);
35872d89
PA		 554 return (0);
555 }
556
1c8b7a9a
PA		 557 if ((error = cam_periph_hold(periph, 0)) != 0) {
558 cam_periph_unlock(periph);
559 return (error);
560 }
561
984263bc
MD		 562 /*
563 * Were we writing the tape?
564 */
565 writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0;
566
567 /*
568 * See whether or not we need to write filemarks. If this
569 * fails, we probably have to assume we've lost tape
570 * position.
571 */
572 error = sacheckeod(periph);
573 if (error) {
1c8b7a9a
PA		 574 xpt_print(periph->path,
575 "failed to write terminating filemark(s)\n");
984263bc
MD		 576 softc->flags |= SA_FLAG_TAPE_FROZEN;
577 }
578
579 /*
580 * Whatever we end up doing, allow users to eject tapes from here on.
581 */
582 saprevent(periph, PR_ALLOW);
583
584 /*
585 * Decide how to end...
586 */
587 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
588 closedbits |= SA_FLAG_TAPE_FROZEN;
589 } else switch (mode) {
590 case SA_MODE_OFFLINE:
591 /*
592 * An 'offline' close is an unconditional release of
593 * frozen && mount conditions, irrespective of whether
594 * these operations succeeded. The reason for this is
595 * to allow at least some kind of programmatic way
596 * around our state getting all fouled up. If somebody
597 * issues an 'offline' command, that will be allowed
598 * to clear state.
599 */
0e224b5d
SW		 600 sarewind(periph);
601 saloadunload(periph, FALSE);
984263bc
MD		 602 closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN;
603 break;
604 case SA_MODE_REWIND:
605 /*
606 * If the rewind fails, return an error- if anyone cares,
607 * but not overwriting any previous error.
608 *
609 * We don't clear the notion of mounted here, but we do
610 * clear the notion of frozen if we successfully rewound.
611 */
612 tmp = sarewind(periph);
613 if (tmp) {
614 if (error != 0)
615 error = tmp;
616 } else {
617 closedbits |= SA_FLAG_TAPE_FROZEN;
618 }
619 break;
620 case SA_MODE_NOREWIND:
621 /*
622 * If we're not rewinding/unloading the tape, find out
623 * whether we need to back up over one of two filemarks
624 * we wrote (if we wrote two filemarks) so that appends
625 * from this point on will be sane.
626 */
627 if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) {
628 tmp = saspace(periph, -1, SS_FILEMARKS);
629 if (tmp) {
1c8b7a9a
PA		 630 xpt_print(periph->path, "unable to backspace "
631 "over one of double filemarks at end of "
632 "tape\n");
633 xpt_print(periph->path, "it is possible that "
634 "this device needs a SA_QUIRK_1FM quirk set"
635 "for it\n");
984263bc
MD		 636 softc->flags |= SA_FLAG_TAPE_FROZEN;
637 }
638 }
639 break;
640 default:
1c8b7a9a 641 xpt_print(periph->path, "unknown mode 0x%x in saclose\n", mode);
984263bc
MD		 642 /* NOTREACHED */
643 break;
644 }
645
646 /*
647 * We wish to note here that there are no more filemarks to be written.
648 */
649 softc->filemarks = 0;
650 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
651
652 /*
653 * And we are no longer open for business.
654 */
655 softc->flags &= ~closedbits;
656
657 /*
658 * Inform users if tape state if frozen....
659 */
660 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
1c8b7a9a
PA		 661 xpt_print(periph->path, "tape is now frozen- use an OFFLINE, "
662 "REWIND or MTEOM command to clear this state.\n");
984263bc
MD		 663 }
664
665 /* release the device if it is no longer mounted */
666 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0)
667 sareservereleaseunit(periph, FALSE);
668
2d19cdd3 669 cam_periph_unhold(periph, 1);
984263bc
MD		 670 cam_periph_release(periph);
671
672 return (error);
673}
674
675/*
676 * Actually translate the requested transfer into one the physical driver
677 * can understand. The transfer is described by a buf and will include
678 * only one physical transfer.
679 */
fef8985e
MD		 680static int
681sastrategy(struct dev_strategy_args *ap)
984263bc 682{
b13267a5 683 cdev_t dev = ap->a_head.a_dev;
fef8985e 684 struct bio *bio = ap->a_bio;
81b5c339 685 struct buf *bp = bio->bio_buf;
984263bc
MD		 686 struct cam_periph *periph;
687 struct sa_softc *softc;
688 u_int unit;
984263bc 689
81b5c339 690 if (SA_IS_CTRL(dev)) {
984263bc
MD		 691 bp->b_error = EINVAL;
692 goto bad;
693 }
81b5c339 694 unit = SAUNIT(dev);
984263bc
MD		 695 periph = cam_extend_get(saperiphs, unit);
696 if (periph == NULL) {
697 bp->b_error = ENXIO;
698 goto bad;
699 }
1c8b7a9a 700 cam_periph_lock(periph);
984263bc 701
1c8b7a9a 702 softc = (struct sa_softc *)periph->softc;
984263bc
MD		 703
704 if (softc->flags & SA_FLAG_INVALID) {
1c8b7a9a 705 cam_periph_unlock(periph);
984263bc
MD		 706 bp->b_error = ENXIO;
707 goto bad;
708 }
709
710 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
1c8b7a9a 711 cam_periph_unlock(periph);
984263bc
MD		 712 bp->b_error = EPERM;
713 goto bad;
714 }
715
35872d89
PA		 716 /*
717 * This should actually never occur as the write(2)
718 * system call traps attempts to write to a read-only
719 * file descriptor.
720 */
721 if (bp->b_cmd == BUF_CMD_WRITE && softc->open_rdonly) {
1c8b7a9a 722 cam_periph_unlock(periph);
35872d89
PA		 723 bp->b_error = EBADF;
724 goto bad;
725 }
726
35872d89
PA		 727 if (softc->open_pending_mount) {
728 int error = samount(periph, 0, dev);
729 if (error) {
1c8b7a9a 730 cam_periph_unlock(periph);
35872d89
PA		 731 bp->b_error = ENXIO;
732 goto bad;
733 }
734 saprevent(periph, PR_PREVENT);
735 softc->open_pending_mount = 0;
736 }
737
984263bc 738 /*
35872d89 739 * If it's a null transfer, return immediately
984263bc 740 */
1c8b7a9a
PA		 741 if (bp->b_bcount == 0) {
742 cam_periph_unlock(periph);
984263bc 743 goto done;
1c8b7a9a 744 }
984263bc
MD		 745
746 /* valid request? */
747 if (softc->flags & SA_FLAG_FIXED) {
748 /*
749 * Fixed block device. The byte count must
750 * be a multiple of our block size.
751 */
752 if (((softc->blk_mask != ~0) &&
753 ((bp->b_bcount & softc->blk_mask) != 0)) ||
754 ((softc->blk_mask == ~0) &&
755 ((bp->b_bcount % softc->min_blk) != 0))) {
1c8b7a9a
PA		 756 xpt_print(periph->path, "Invalid request. Fixed block "
757 "device requests must be a multiple of %d bytes\n",
758 softc->min_blk);
759 cam_periph_unlock(periph);
984263bc
MD		 760 bp->b_error = EINVAL;
761 goto bad;
762 }
763 } else if ((bp->b_bcount > softc->max_blk) ||
764 (bp->b_bcount < softc->min_blk) ||
765 (bp->b_bcount & softc->blk_mask) != 0) {
766
767 xpt_print_path(periph->path);
1c8b7a9a
PA		 768 kprintf("Invalid request. Variable block "
769 "device requests must be ");
984263bc 770 if (softc->blk_mask != 0) {
85f8e2ea 771 kprintf("a multiple of %d ", (0x1 << softc->blk_gran));
984263bc 772 }
85f8e2ea 773 kprintf("between %d and %d bytes\n", softc->min_blk,
984263bc 774 softc->max_blk);
1c8b7a9a 775 cam_periph_unlock(periph);
984263bc
MD		 776 bp->b_error = EINVAL;
777 goto bad;
778 }
779
780 /*
984263bc
MD		 781 * Place it at the end of the queue.
782 */
81b5c339 783 bioq_insert_tail(&softc->bio_queue, bio);
984263bc 784 softc->queue_count++;
41afe5bf
PA		 785#if 0
786 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
787 ("sastrategy: queuing a %ld %s byte %s\n", bp->bio_bcount,
788 (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable",
789 (bp->bio_cmd == BIO_READ)? "read" : "write"));
790#endif
791 if (softc->queue_count > 1) {
792 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
793 ("sastrategy: queue count now %d\n", softc->queue_count));
794 }
984263bc
MD		 795
796 /*
797 * Schedule ourselves for performing the work.
798 */
799 xpt_schedule(periph, 1);
1c8b7a9a 800 cam_periph_unlock(periph);
984263bc 801
fef8985e 802 return(0);
984263bc
MD		 803bad:
804 bp->b_flags |= B_ERROR;
805done:
806
807 /*
808 * Correctly set the buf to indicate a completed xfer
809 */
810 bp->b_resid = bp->b_bcount;
81b5c339 811 biodone(bio);
fef8985e 812 return(0);
984263bc
MD		 813}
814
35872d89
PA		 815
816#define PENDING_MOUNT_CHECK(softc, periph, dev) \
817 if (softc->open_pending_mount) { \
818 error = samount(periph, 0, dev); \
819 if (error) { \
820 break; \
821 } \
822 saprevent(periph, PR_PREVENT); \
823 softc->open_pending_mount = 0; \
824 }
825
984263bc 826static int
fef8985e 827saioctl(struct dev_ioctl_args *ap)
984263bc 828{
b13267a5 829 cdev_t dev = ap->a_head.a_dev;
fef8985e 830 caddr_t addr = ap->a_data;
984263bc
MD		 831 struct cam_periph *periph;
832 struct sa_softc *softc;
833 scsi_space_code spaceop;
2d19cdd3 834 int didholdperiph = 0;
984263bc
MD		 835 int unit;
836 int mode;
984263bc
MD		 837 int error = 0;
838
839 unit = SAUNIT(dev);
840 mode = SAMODE(dev);
984263bc
MD		 841 error = 0; /* shut up gcc */
842 spaceop = 0; /* shut up gcc */
843
844 periph = cam_extend_get(saperiphs, unit);
845 if (periph == NULL)
846 return (ENXIO);
847
1c8b7a9a 848 cam_periph_lock(periph);
984263bc
MD		 849 softc = (struct sa_softc *)periph->softc;
850
851 /*
852 * Check for control mode accesses. We allow MTIOCGET and
853 * MTIOCERRSTAT (but need to be the only one open in order
854 * to clear latched status), and MTSETBSIZE, MTSETDNSTY
855 * and MTCOMP (but need to be the only one accessing this
856 * device to run those).
857 */
858
859 if (SA_IS_CTRL(dev)) {
fef8985e 860 switch (ap->a_cmd) {
984263bc
MD		 861 case MTIOCGETEOTMODEL:
862 case MTIOCGET:
863 break;
864 case MTIOCERRSTAT:
865 /*
866 * If the periph isn't already locked, lock it
867 * so our MTIOCERRSTAT can reset latched error stats.
868 *
869 * If the periph is already locked, skip it because
870 * we're just getting status and it'll be up to the
871 * other thread that has this device open to do
872 * an MTIOCERRSTAT that would clear latched status.
873 */
984263bc 874 if ((periph->flags & CAM_PERIPH_LOCKED) == 0) {
1c8b7a9a 875 error = cam_periph_hold(periph, PCATCH);
984263bc 876 if (error != 0) {
984263bc
MD		 877 return (error);
878 }
2d19cdd3 879 didholdperiph = 1;
984263bc
MD		 880 }
881 break;
882
556a5c3b
PA		 883 case MTIOCTOP:
884 {
885 struct mtop *mt = (struct mtop *) addr;
886
887 /*
888 * Check to make sure it's an OP we can perform
889 * with no media inserted.
890 */
891 switch (mt->mt_op) {
892 case MTSETBSIZ:
893 case MTSETDNSTY:
894 case MTCOMP:
895 mt = NULL;
896 /* FALLTHROUGH */
897 default:
898 break;
899 }
900 if (mt != NULL) {
901 break;
902 }
903 /* FALLTHROUGH */
904 }
984263bc 905 case MTIOCSETEOTMODEL:
984263bc
MD		 906 /*
907 * We need to acquire the peripheral here rather
908 * than at open time because we are sharing writable
909 * access to data structures.
910 */
1c8b7a9a 911 error = cam_periph_hold(periph, PCATCH);
984263bc 912 if (error != 0) {
984263bc
MD		 913 return (error);
914 }
2d19cdd3 915 didholdperiph = 1;
984263bc
MD		 916 break;
917
918 default:
919 return (EINVAL);
920 }
921 }
922
923 /*
924 * Find the device that the user is talking about
925 */
fef8985e 926 switch (ap->a_cmd) {
984263bc
MD		 927 case MTIOCGET:
928 {
fef8985e 929 struct mtget *g = (struct mtget *)addr;
984263bc
MD		 930
931 /*
932 * If this isn't the control mode device, actually go out
933 * and ask the drive again what it's set to.
934 */
35872d89 935 if (!SA_IS_CTRL(dev) && !softc->open_pending_mount) {
984263bc
MD		 936 u_int8_t write_protect;
937 int comp_enabled, comp_supported;
938 error = sagetparams(periph, SA_PARAM_ALL,
939 &softc->media_blksize, &softc->media_density,
940 &softc->media_numblks, &softc->buffer_mode,
941 &write_protect, &softc->speed, &comp_supported,
942 &comp_enabled, &softc->comp_algorithm, NULL);
943 if (error)
944 break;
945 if (write_protect)
946 softc->flags |= SA_FLAG_TAPE_WP;
947 else
948 softc->flags &= ~SA_FLAG_TAPE_WP;
949 softc->flags &= ~(SA_FLAG_COMP_SUPP|
950 SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP);
951 if (comp_supported) {
952 if (softc->saved_comp_algorithm == 0)
953 softc->saved_comp_algorithm =
954 softc->comp_algorithm;
955 softc->flags |= SA_FLAG_COMP_SUPP;
956 if (comp_enabled)
957 softc->flags |= SA_FLAG_COMP_ENABLED;
958 } else
959 softc->flags |= SA_FLAG_COMP_UNSUPP;
960 }
961 bzero(g, sizeof(struct mtget));
962 g->mt_type = MT_ISAR;
963 if (softc->flags & SA_FLAG_COMP_UNSUPP) {
964 g->mt_comp = MT_COMP_UNSUPP;
965 g->mt_comp0 = MT_COMP_UNSUPP;
966 g->mt_comp1 = MT_COMP_UNSUPP;
967 g->mt_comp2 = MT_COMP_UNSUPP;
968 g->mt_comp3 = MT_COMP_UNSUPP;
969 } else {
970 if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) {
971 g->mt_comp = MT_COMP_DISABLED;
972 } else {
973 g->mt_comp = softc->comp_algorithm;
974 }
975 g->mt_comp0 = softc->comp_algorithm;
976 g->mt_comp1 = softc->comp_algorithm;
977 g->mt_comp2 = softc->comp_algorithm;
978 g->mt_comp3 = softc->comp_algorithm;
979 }
980 g->mt_density = softc->media_density;
981 g->mt_density0 = softc->media_density;
982 g->mt_density1 = softc->media_density;
983 g->mt_density2 = softc->media_density;
984 g->mt_density3 = softc->media_density;
985 g->mt_blksiz = softc->media_blksize;
986 g->mt_blksiz0 = softc->media_blksize;
987 g->mt_blksiz1 = softc->media_blksize;
988 g->mt_blksiz2 = softc->media_blksize;
989 g->mt_blksiz3 = softc->media_blksize;
990 g->mt_fileno = softc->fileno;
991 g->mt_blkno = softc->blkno;
992 g->mt_dsreg = (short) softc->dsreg;
993 /*
994 * Yes, we know that this is likely to overflow
995 */
996 if (softc->last_resid_was_io) {
997 if ((g->mt_resid = (short) softc->last_io_resid) != 0) {
2d19cdd3 998 if (SA_IS_CTRL(dev) == 0 || didholdperiph) {
984263bc
MD		 999 softc->last_io_resid = 0;
1000 }
1001 }
1002 } else {
1003 if ((g->mt_resid = (short)softc->last_ctl_resid) != 0) {
2d19cdd3 1004 if (SA_IS_CTRL(dev) == 0 || didholdperiph) {
984263bc
MD		 1005 softc->last_ctl_resid = 0;
1006 }
1007 }
1008 }
1009 error = 0;
1010 break;
1011 }
1012 case MTIOCERRSTAT:
1013 {
1014 struct scsi_tape_errors *sep =
fef8985e 1015 &((union mterrstat *)addr)->scsi_errstat;
984263bc
MD		 1016
1017 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1018 ("saioctl: MTIOCERRSTAT\n"));
1019
1020 bzero(sep, sizeof(*sep));
1021 sep->io_resid = softc->last_io_resid;
1022 bcopy((caddr_t) &softc->last_io_sense, sep->io_sense,
1023 sizeof (sep->io_sense));
1024 bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb,
1025 sizeof (sep->io_cdb));
1026 sep->ctl_resid = softc->last_ctl_resid;
1027 bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense,
1028 sizeof (sep->ctl_sense));
1029 bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb,
1030 sizeof (sep->ctl_cdb));
1031
35872d89 1032 if ((SA_IS_CTRL(dev) == 0 && softc->open_pending_mount) ||
2d19cdd3 1033 didholdperiph)
984263bc
MD		 1034 bzero((caddr_t) &softc->errinfo,
1035 sizeof (softc->errinfo));
1036 error = 0;
1037 break;
1038 }
1039 case MTIOCTOP:
1040 {
1041 struct mtop *mt;
1042 int count;
1043
35872d89
PA		 1044 PENDING_MOUNT_CHECK(softc, periph, dev);
1045
fef8985e 1046 mt = (struct mtop *)addr;
984263bc
MD		 1047
1048 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1049 ("saioctl: op=0x%x count=0x%x\n",
1050 mt->mt_op, mt->mt_count));
1051
1052 count = mt->mt_count;
1053 switch (mt->mt_op) {
1054 case MTWEOF: /* write an end-of-file marker */
1055 /*
1056 * We don't need to clear the SA_FLAG_TAPE_WRITTEN
1057 * flag because by keeping track of filemarks
1058 * we have last written we know ehether or not
1059 * we need to write more when we close the device.
1060 */
1061 error = sawritefilemarks(periph, count, FALSE);
1062 break;
1063 case MTWSS: /* write a setmark */
1064 error = sawritefilemarks(periph, count, TRUE);
1065 break;
1066 case MTBSR: /* backward space record */
1067 case MTFSR: /* forward space record */
1068 case MTBSF: /* backward space file */
1069 case MTFSF: /* forward space file */
1070 case MTBSS: /* backward space setmark */
1071 case MTFSS: /* forward space setmark */
1072 case MTEOD: /* space to end of recorded medium */
1073 {
1074 int nmarks;
1075
1076 spaceop = SS_FILEMARKS;
1077 nmarks = softc->filemarks;
1078 error = sacheckeod(periph);
1079 if (error) {
1c8b7a9a
PA		 1080 xpt_print(periph->path,
1081 "EOD check prior to spacing failed\n");
984263bc
MD		 1082 softc->flags |= SA_FLAG_EIO_PENDING;
1083 break;
1084 }
1085 nmarks -= softc->filemarks;
1086 switch(mt->mt_op) {
1087 case MTBSR:
1088 count = -count;
1089 /* FALLTHROUGH */
1090 case MTFSR:
1091 spaceop = SS_BLOCKS;
1092 break;
1093 case MTBSF:
1094 count = -count;
1095 /* FALLTHROUGH */
1096 case MTFSF:
1097 break;
1098 case MTBSS:
1099 count = -count;
1100 /* FALLTHROUGH */
1101 case MTFSS:
1102 spaceop = SS_SETMARKS;
1103 break;
1104 case MTEOD:
1105 spaceop = SS_EOD;
1106 count = 0;
1107 nmarks = 0;
1108 break;
1109 default:
1110 error = EINVAL;
1111 break;
1112 }
1113 if (error)
1114 break;
1115
1116 nmarks = softc->filemarks;
1117 /*
1118 * XXX: Why are we checking again?
1119 */
1120 error = sacheckeod(periph);
1121 if (error)
1122 break;
1123 nmarks -= softc->filemarks;
1124 error = saspace(periph, count - nmarks, spaceop);
1125 /*
1126 * At this point, clear that we've written the tape
1127 * and that we've written any filemarks. We really
1128 * don't know what the applications wishes to do next-
1129 * the sacheckeod's will make sure we terminated the
1130 * tape correctly if we'd been writing, but the next
1131 * action the user application takes will set again
1132 * whether we need to write filemarks.
1133 */
1134 softc->flags &=
1135 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1136 softc->filemarks = 0;
1137 break;
1138 }
1139 case MTREW: /* rewind */
35872d89 1140 PENDING_MOUNT_CHECK(softc, periph, dev);
0e224b5d 1141 sacheckeod(periph);
984263bc
MD		 1142 error = sarewind(periph);
1143 /* see above */
1144 softc->flags &=
1145 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1146 softc->flags &= ~SA_FLAG_ERR_PENDING;
1147 softc->filemarks = 0;
1148 break;
1149 case MTERASE: /* erase */
35872d89 1150 PENDING_MOUNT_CHECK(softc, periph, dev);
984263bc
MD		 1151 error = saerase(periph, count);
1152 softc->flags &=
1153 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1154 softc->flags &= ~SA_FLAG_ERR_PENDING;
1155 break;
1156 case MTRETENS: /* re-tension tape */
35872d89 1157 PENDING_MOUNT_CHECK(softc, periph, dev);
984263bc
MD		 1158 error = saretension(periph);
1159 softc->flags &=
1160 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1161 softc->flags &= ~SA_FLAG_ERR_PENDING;
1162 break;
1163 case MTOFFL: /* rewind and put the drive offline */
1164
35872d89
PA		 1165 PENDING_MOUNT_CHECK(softc, periph, dev);
1166
0e224b5d 1167 sacheckeod(periph);
984263bc
MD		 1168 /* see above */
1169 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
1170 softc->filemarks = 0;
1171
1172 error = sarewind(periph);
1173 /* clear the frozen flag anyway */
1174 softc->flags &= ~SA_FLAG_TAPE_FROZEN;
1175
1176 /*
1177 * Be sure to allow media removal before ejecting.
1178 */
1179
1180 saprevent(periph, PR_ALLOW);
1181 if (error == 0) {
1182 error = saloadunload(periph, FALSE);
1183 if (error == 0) {
1184 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1185 }
1186 }
1187 break;
1188
1189 case MTNOP: /* no operation, sets status only */
1190 case MTCACHE: /* enable controller cache */
1191 case MTNOCACHE: /* disable controller cache */
1192 error = 0;
1193 break;
1194
1195 case MTSETBSIZ: /* Set block size for device */
1196
35872d89
PA		 1197 PENDING_MOUNT_CHECK(softc, periph, dev);
1198
984263bc
MD		 1199 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count,
1200 0, 0, 0);
1201 if (error == 0) {
1202 softc->last_media_blksize =
1203 softc->media_blksize;
1204 softc->media_blksize = count;
1205 if (count) {
1206 softc->flags |= SA_FLAG_FIXED;
1207 if (powerof2(count)) {
1208 softc->blk_shift =
1209 ffs(count) - 1;
1210 softc->blk_mask = count - 1;
1211 } else {
1212 softc->blk_mask = ~0;
1213 softc->blk_shift = 0;
1214 }
1215 /*
1216 * Make the user's desire 'persistent'.
1217 */
1218 softc->quirks &= ~SA_QUIRK_VARIABLE;
1219 softc->quirks |= SA_QUIRK_FIXED;
1220 } else {
1221 softc->flags &= ~SA_FLAG_FIXED;
1222 if (softc->max_blk == 0) {
1223 softc->max_blk = ~0;
1224 }
1225 softc->blk_shift = 0;
1226 if (softc->blk_gran != 0) {
1227 softc->blk_mask =
1228 softc->blk_gran - 1;
1229 } else {
1230 softc->blk_mask = 0;
1231 }
1232 /*
1233 * Make the user's desire 'persistent'.
1234 */
1235 softc->quirks |= SA_QUIRK_VARIABLE;
1236 softc->quirks &= ~SA_QUIRK_FIXED;
1237 }
1238 }
1239 break;
1240 case MTSETDNSTY: /* Set density for device and mode */
35872d89
PA		 1241 PENDING_MOUNT_CHECK(softc, periph, dev);
1242
984263bc
MD		 1243 if (count > UCHAR_MAX) {
1244 error = EINVAL;
1245 break;
1246 } else {
1247 error = sasetparams(periph, SA_PARAM_DENSITY,
1248 0, count, 0, 0);
1249 }
1250 break;
1251 case MTCOMP: /* enable compression */
35872d89 1252 PENDING_MOUNT_CHECK(softc, periph, dev);
984263bc
MD		 1253 /*
1254 * Some devices don't support compression, and
1255 * don't like it if you ask them for the
1256 * compression page.
1257 */
1258 if ((softc->quirks & SA_QUIRK_NOCOMP) ||
1259 (softc->flags & SA_FLAG_COMP_UNSUPP)) {
1260 error = ENODEV;
1261 break;
1262 }
1263 error = sasetparams(periph, SA_PARAM_COMPRESSION,
1264 0, 0, count, SF_NO_PRINT);
1265 break;
1266 default:
1267 error = EINVAL;
1268 }
1269 break;
1270 }
1271 case MTIOCIEOT:
1272 case MTIOCEEOT:
1273 error = 0;
1274 break;
1275 case MTIOCRDSPOS:
35872d89 1276 PENDING_MOUNT_CHECK(softc, periph, dev);
fef8985e 1277 error = sardpos(periph, 0, (u_int32_t *) addr);
984263bc
MD		 1278 break;
1279 case MTIOCRDHPOS:
35872d89 1280 PENDING_MOUNT_CHECK(softc, periph, dev);
fef8985e 1281 error = sardpos(periph, 1, (u_int32_t *) addr);
984263bc
MD		 1282 break;
1283 case MTIOCSLOCATE:
35872d89 1284 PENDING_MOUNT_CHECK(softc, periph, dev);
fef8985e 1285 error = sasetpos(periph, 0, (u_int32_t *) addr);
984263bc
MD		 1286 break;
1287 case MTIOCHLOCATE:
35872d89 1288 PENDING_MOUNT_CHECK(softc, periph, dev);
fef8985e 1289 error = sasetpos(periph, 1, (u_int32_t *) addr);
984263bc
MD		 1290 break;
1291 case MTIOCGETEOTMODEL:
1292 error = 0;
1293 if (softc->quirks & SA_QUIRK_1FM)
1294 mode = 1;
1295 else
1296 mode = 2;
fef8985e 1297 *((u_int32_t *) addr) = mode;
984263bc
MD		 1298 break;
1299 case MTIOCSETEOTMODEL:
1300 error = 0;
fef8985e 1301 switch (*((u_int32_t *) addr)) {
984263bc
MD		 1302 case 1:
1303 softc->quirks &= ~SA_QUIRK_2FM;
1304 softc->quirks |= SA_QUIRK_1FM;
1305 break;
1306 case 2:
1307 softc->quirks &= ~SA_QUIRK_1FM;
1308 softc->quirks |= SA_QUIRK_2FM;
1309 break;
1310 default:
1311 error = EINVAL;
1312 break;
1313 }
1314 break;
1315 default:
fef8985e 1316 error = cam_periph_ioctl(periph, ap->a_cmd, addr, saerror);
984263bc
MD		 1317 break;
1318 }
1319
1320 /*
1321 * Check to see if we cleared a frozen state
1322 */
1323 if (error == 0 && (softc->flags & SA_FLAG_TAPE_FROZEN)) {
fef8985e 1324 switch(ap->a_cmd) {
984263bc
MD		 1325 case MTIOCRDSPOS:
1326 case MTIOCRDHPOS:
1327 case MTIOCSLOCATE:
1328 case MTIOCHLOCATE:
1329 softc->fileno = (daddr_t) -1;
1330 softc->blkno = (daddr_t) -1;
1331 softc->flags &= ~SA_FLAG_TAPE_FROZEN;
1c8b7a9a
PA		 1332 xpt_print(periph->path,
1333 "tape state now unfrozen.\n");
984263bc
MD		 1334 break;
1335 default:
1336 break;
1337 }
1338 }
2d19cdd3
MD		 1339 if (didholdperiph)
1340 cam_periph_unhold(periph, 1);
1341 else
1342 cam_periph_unlock(periph);
984263bc
MD		 1343 return (error);
1344}
1345
1346static void
1347sainit(void)
1348{
1349 cam_status status;
984263bc
MD		 1350
1351 /*
1352 * Create our extend array for storing the devices we attach to.
1353 */
1354 saperiphs = cam_extend_new();
1355 if (saperiphs == NULL) {
85f8e2ea 1356 kprintf("sa: Failed to alloc extend array!\n");
984263bc
MD		 1357 return;
1358 }
1359
1360 /*
1361 * Install a global async callback.
1362 */
1c8b7a9a 1363 status = xpt_register_async(AC_FOUND_DEVICE, saasync, NULL, NULL);
984263bc
MD		 1364
1365 if (status != CAM_REQ_CMP) {
85f8e2ea 1366 kprintf("sa: Failed to attach master async callback "
984263bc
MD		 1367 "due to status 0x%x!\n", status);
1368 }
1369}
1370
1371static void
1372saoninvalidate(struct cam_periph *periph)
1373{
1374 struct sa_softc *softc;
1375 struct buf *q_bp;
81b5c339 1376 struct bio *q_bio;
984263bc
MD		 1377
1378 softc = (struct sa_softc *)periph->softc;
1379
1380 /*
1381 * De-register any async callbacks.
1382 */
1c8b7a9a 1383 xpt_register_async(0, saasync, periph, periph->path);
984263bc
MD		 1384
1385 softc->flags |= SA_FLAG_INVALID;
1386
1387 /*
984263bc
MD		 1388 * Return all queued I/O with ENXIO.
1389 * XXX Handle any transactions queued to the card
1390 * with XPT_ABORT_CCB.
1391 */
81b5c339
MD		 1392 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){
1393 bioq_remove(&softc->bio_queue, q_bio);
1394 q_bp = q_bio->bio_buf;
984263bc
MD		 1395 q_bp->b_resid = q_bp->b_bcount;
1396 q_bp->b_error = ENXIO;
1397 q_bp->b_flags |= B_ERROR;
81b5c339 1398 biodone(q_bio);
984263bc
MD		 1399 }
1400 softc->queue_count = 0;
984263bc 1401
1c8b7a9a 1402 xpt_print(periph->path, "lost device\n");
984263bc
MD		 1403
1404}
1405
1406static void
1407sacleanup(struct cam_periph *periph)
1408{
1409 struct sa_softc *softc;
984263bc
MD		 1410
1411 softc = (struct sa_softc *)periph->softc;
1412
1413 devstat_remove_entry(&softc->device_stats);
1414
984263bc 1415 cam_extend_release(saperiphs, periph->unit_number);
1c8b7a9a 1416 xpt_print(periph->path, "removing device entry\n");
cd29885a
MD		 1417 kprintf("devfs: PLEASE check that only the right scsi sa devices were removed!!!!\n");
1418 dev_ops_remove_minor(&sa_ops, /*SA_UNITMASK,*/ SA_UNIT(periph->unit_number));
bc6e3c73 1419 kfree(softc, M_SCSISA);
984263bc
MD		 1420}
1421
1422static void
1423saasync(void *callback_arg, u_int32_t code,
1424 struct cam_path *path, void *arg)
1425{
1426 struct cam_periph *periph;
1427
1428 periph = (struct cam_periph *)callback_arg;
1429 switch (code) {
1430 case AC_FOUND_DEVICE:
1431 {
1432 struct ccb_getdev *cgd;
1433 cam_status status;
1434
1435 cgd = (struct ccb_getdev *)arg;
1436 if (cgd == NULL)
1437 break;
1438
1439 if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL)
1440 break;
1441
1442 /*
1443 * Allocate a peripheral instance for
1444 * this device and start the probe
1445 * process.
1446 */
1447 status = cam_periph_alloc(saregister, saoninvalidate,
1448 sacleanup, sastart,
1449 "sa", CAM_PERIPH_BIO, cgd->ccb_h.path,
1450 saasync, AC_FOUND_DEVICE, cgd);
1451
1452 if (status != CAM_REQ_CMP
1453 && status != CAM_REQ_INPROG)
85f8e2ea 1454 kprintf("saasync: Unable to probe new device "
984263bc
MD		 1455 "due to status 0x%x\n", status);
1456 break;
1457 }
1458 default:
1459 cam_periph_async(periph, code, path, arg);
1460 break;
1461 }
1462}
1463
1464static cam_status
1465saregister(struct cam_periph *periph, void *arg)
1466{
1467 struct sa_softc *softc;
984263bc
MD		 1468 struct ccb_getdev *cgd;
1469 caddr_t match;
1470 int i;
1471
1472 cgd = (struct ccb_getdev *)arg;
1473 if (periph == NULL) {
85f8e2ea 1474 kprintf("saregister: periph was NULL!!\n");
984263bc
MD		 1475 return (CAM_REQ_CMP_ERR);
1476 }
1477
1478 if (cgd == NULL) {
85f8e2ea 1479 kprintf("saregister: no getdev CCB, can't register device\n");
984263bc
MD		 1480 return (CAM_REQ_CMP_ERR);
1481 }
1482
bc6e3c73 1483 softc = kmalloc(sizeof (*softc), M_SCSISA, M_INTWAIT | M_ZERO);
984263bc
MD		 1484 softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data);
1485 softc->state = SA_STATE_NORMAL;
1486 softc->fileno = (daddr_t) -1;
1487 softc->blkno = (daddr_t) -1;
1488
81b5c339 1489 bioq_init(&softc->bio_queue);
984263bc
MD		 1490 periph->softc = softc;
1491 cam_extend_set(saperiphs, periph->unit_number, periph);
1492
1493 /*
1494 * See if this device has any quirks.
1495 */
1496 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1497 (caddr_t)sa_quirk_table,
1498 sizeof(sa_quirk_table)/sizeof(*sa_quirk_table),
1499 sizeof(*sa_quirk_table), scsi_inquiry_match);
1500
1501 if (match != NULL) {
1502 softc->quirks = ((struct sa_quirk_entry *)match)->quirks;
1503 softc->last_media_blksize =
1504 ((struct sa_quirk_entry *)match)->prefblk;
1505#ifdef CAMDEBUG
1c8b7a9a
PA		 1506 xpt_print(periph->path, "found quirk entry %d\n",
1507 (int) (((struct sa_quirk_entry *) match) - sa_quirk_table));
984263bc
MD		 1508#endif
1509 } else
1510 softc->quirks = SA_QUIRK_NONE;
1511
1512 /*
1513 * The SA driver supports a blocksize, but we don't know the
1514 * blocksize until we media is inserted. So, set a flag to
1515 * indicate that the blocksize is unavailable right now.
1516 */
1c8b7a9a 1517 cam_periph_unlock(periph);
984263bc
MD		 1518 devstat_add_entry(&softc->device_stats, "sa", periph->unit_number, 0,
1519 DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) |
1520 DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_TAPE);
1521
fef8985e 1522 make_dev(&sa_ops, SAMINOR(SA_CTLDEV,
984263bc 1523 periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
f7507c39 1524 0660, "%s%d.ctl", periph->periph_name, periph->unit_number);
984263bc 1525
fef8985e 1526 make_dev(&sa_ops, SAMINOR(SA_NOT_CTLDEV,
984263bc 1527 periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
f7507c39 1528 0660, "%s%d", periph->periph_name, periph->unit_number);
984263bc 1529
fef8985e 1530 make_dev(&sa_ops, SAMINOR(SA_NOT_CTLDEV,
984263bc 1531 periph->unit_number, 0, SA_ATYPE_NR), UID_ROOT, GID_OPERATOR,
f7507c39 1532 0660, "n%s%d", periph->periph_name, periph->unit_number);
984263bc 1533
fef8985e 1534 make_dev(&sa_ops, SAMINOR(SA_NOT_CTLDEV,
984263bc 1535 periph->unit_number, 0, SA_ATYPE_ER), UID_ROOT, GID_OPERATOR,
f7507c39 1536 0660, "e%s%d", periph->periph_name, periph->unit_number);
984263bc
MD		 1537
1538 for (i = 0; i < SA_NUM_MODES; i++) {
1539
fef8985e 1540 make_dev(&sa_ops,
984263bc 1541 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_R),
f7507c39 1542 UID_ROOT, GID_OPERATOR, 0660, "%s%d.%d",
984263bc
MD		 1543 periph->periph_name, periph->unit_number, i);
1544
fef8985e 1545 make_dev(&sa_ops,
984263bc 1546 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_NR),
f7507c39 1547 UID_ROOT, GID_OPERATOR, 0660, "n%s%d.%d",
984263bc
MD		 1548 periph->periph_name, periph->unit_number, i);
1549
1550
fef8985e 1551 make_dev(&sa_ops,
984263bc 1552 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_ER),
f7507c39 1553 UID_ROOT, GID_OPERATOR, 0660, "e%s%d.%d",
984263bc
MD		 1554 periph->periph_name, periph->unit_number, i);
1555 }
1c8b7a9a 1556 cam_periph_lock(periph);
984263bc
MD		 1557
1558 /*
1559 * Add an async callback so that we get
1560 * notified if this device goes away.
1561 */
1c8b7a9a 1562 xpt_register_async(AC_LOST_DEVICE, saasync, periph, periph->path);
984263bc
MD		 1563
1564 xpt_announce_periph(periph, NULL);
1565
1566 return (CAM_REQ_CMP);
1567}
1568
1569static void
1570sastart(struct cam_periph *periph, union ccb *start_ccb)
1571{
1572 struct sa_softc *softc;
1573
1574 softc = (struct sa_softc *)periph->softc;
1575
41afe5bf 1576 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n"));
984263bc
MD		 1577
1578
1579 switch (softc->state) {
1580 case SA_STATE_NORMAL:
1581 {
1582 /* Pull a buffer from the queue and get going on it */
1583 struct buf *bp;
81b5c339 1584 struct bio *bio;
984263bc
MD		 1585
1586 /*
1587 * See if there is a buf with work for us to do..
1588 */
81b5c339 1589 bio = bioq_first(&softc->bio_queue);
984263bc
MD		 1590 if (periph->immediate_priority <= periph->pinfo.priority) {
1591 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1592 ("queuing for immediate ccb\n"));
1593 Set_CCB_Type(start_ccb, SA_CCB_WAITING);
1594 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1595 periph_links.sle);
1596 periph->immediate_priority = CAM_PRIORITY_NONE;
984263bc 1597 wakeup(&periph->ccb_list);
81b5c339 1598 } else if (bio == NULL) {
984263bc
MD		 1599 xpt_release_ccb(start_ccb);
1600 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) {
81b5c339 1601 struct bio *done_bio;
984263bc
MD		 1602again:
1603 softc->queue_count--;
81b5c339
MD		 1604 bioq_remove(&softc->bio_queue, bio);
1605 bp = bio->bio_buf;
984263bc 1606 bp->b_resid = bp->b_bcount;
81b5c339 1607 done_bio = bio;
984263bc
MD		 1608 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) {
1609 /*
1610 * We now just clear errors in this case
1611 * and let the residual be the notifier.
1612 */
1613 bp->b_error = 0;
1614 } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) {
1615 /*
1616 * This can only happen if we're reading
1617 * in fixed length mode. In this case,
1618 * we dump the rest of the list the
1619 * same way.
1620 */
1621 bp->b_error = 0;
81b5c339
MD		 1622 if (bioq_first(&softc->bio_queue) != NULL) {
1623 biodone(done_bio);
984263bc
MD		 1624 goto again;
1625 }
1626 } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) {
1627 bp->b_error = EIO;
1628 bp->b_flags |= B_ERROR;
1629 }
81b5c339 1630 bio = bioq_first(&softc->bio_queue);
984263bc
MD		 1631 /*
1632 * Only if we have no other buffers queued up
1633 * do we clear the pending error flag.
1634 */
81b5c339 1635 if (bio == NULL)
984263bc
MD		 1636 softc->flags &= ~SA_FLAG_ERR_PENDING;
1637 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
81b5c339 1638 ("sastart- ERR_PENDING now 0x%x, bio is %sNULL, "
984263bc
MD		 1639 "%d more buffers queued up\n",
1640 (softc->flags & SA_FLAG_ERR_PENDING),
81b5c339 1641 (bio != NULL)? "not " : " ", softc->queue_count));
984263bc 1642 xpt_release_ccb(start_ccb);
81b5c339 1643 biodone(done_bio);
984263bc
MD		 1644 } else {
1645 u_int32_t length;
1646
81b5c339
MD		 1647 bioq_remove(&softc->bio_queue, bio);
1648 bp = bio->bio_buf;
984263bc
MD		 1649 softc->queue_count--;
1650
1651 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1652 if (softc->blk_shift != 0) {
1653 length =
1654 bp->b_bcount >> softc->blk_shift;
1655 } else if (softc->media_blksize != 0) {
1656 length =
1657 bp->b_bcount / softc->media_blksize;
1658 } else {
1659 bp->b_error = EIO;
1c8b7a9a
PA		 1660 xpt_print(periph->path, "zero blocksize"
1661 " for FIXED length writes?\n");
81b5c339 1662 biodone(bio);
984263bc
MD		 1663 break;
1664 }
41afe5bf
PA		 1665#if 0
1666 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
1667 ("issuing a %d fixed record %s\n",
1668 length, (bp->bio_cmd == BIO_READ)? "read" :
1669 "write"));
1670#endif
984263bc
MD		 1671 } else {
1672 length = bp->b_bcount;
41afe5bf 1673#if 0
984263bc 1674 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
41afe5bf
PA		 1675 ("issuing a %d variable byte %s\n",
1676 length, (bp->bio_cmd == BIO_READ)? "read" :
1677 "write"));
1678#endif
984263bc
MD		 1679 }
1680 devstat_start_transaction(&softc->device_stats);
1681 /*
1682 * Some people have theorized that we should
1683 * suppress illegal length indication if we are
1684 * running in variable block mode so that we don't
1685 * have to request sense every time our requested
1686 * block size is larger than the written block.
1687 * The residual information from the ccb allows
1688 * us to identify this situation anyway. The only
1689 * problem with this is that we will not get
1690 * information about blocks that are larger than
1691 * our read buffer unless we set the block size
1692 * in the mode page to something other than 0.
1693 *
1694 * I believe that this is a non-issue. If user apps
1695 * don't adjust their read size to match our record
1696 * size, that's just life. Anyway, the typical usage
1697 * would be to issue, e.g., 64KB reads and occasionally
1698 * have to do deal with 512 byte or 1KB intermediate
1699 * records.
1700 */
10f3fee5 1701 softc->dsreg = (bp->b_cmd == BUF_CMD_READ) ?
984263bc
MD		 1702 MTIO_DSREG_RD : MTIO_DSREG_WR;
1703 scsi_sa_read_write(&start_ccb->csio, 0, sadone,
10f3fee5 1704 MSG_SIMPLE_Q_TAG, (bp->b_cmd == BUF_CMD_READ) != 0,
984263bc
MD		 1705 FALSE, (softc->flags & SA_FLAG_FIXED) != 0,
1706 length, bp->b_data, bp->b_bcount, SSD_FULL_SIZE,
1707 IO_TIMEOUT);
1708 start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED;
1709 Set_CCB_Type(start_ccb, SA_CCB_BUFFER_IO);
81b5c339
MD		 1710 start_ccb->ccb_h.ccb_bio = bio;
1711 bio = bioq_first(&softc->bio_queue);
984263bc
MD		 1712 xpt_action(start_ccb);
1713 }
1714
81b5c339 1715 if (bio != NULL) {
984263bc
MD		 1716 /* Have more work to do, so ensure we stay scheduled */
1717 xpt_schedule(periph, 1);
1718 }
1719 break;
1720 }
1721 case SA_STATE_ABNORMAL:
1722 default:
1723 panic("state 0x%x in sastart", softc->state);
1724 break;
1725 }
1726}
1727
1728
1729static void
1730sadone(struct cam_periph *periph, union ccb *done_ccb)
1731{
1732 struct sa_softc *softc;
1733 struct ccb_scsiio *csio;
1734
1735 softc = (struct sa_softc *)periph->softc;
1736 csio = &done_ccb->csio;
1737 switch (CCB_Type(csio)) {
1738 case SA_CCB_BUFFER_IO:
1739 {
1740 struct buf *bp;
81b5c339 1741 struct bio *bio;
984263bc
MD		 1742 int error;
1743
1744 softc->dsreg = MTIO_DSREG_REST;
81b5c339
MD		 1745 bio = (struct bio *)done_ccb->ccb_h.ccb_bio;
1746 bp = bio->bio_buf;
984263bc
MD		 1747 error = 0;
1748 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1749 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) {
1750 /*
1751 * A retry was scheduled, so just return.
1752 */
1753 return;
1754 }
1755 }
1756
1757 if (error == EIO) {
984263bc 1758 struct buf *q_bp;
81b5c339 1759 struct bio *q_bio;
984263bc
MD		 1760
1761 /*
1762 * Catastrophic error. Mark the tape as frozen
1763 * (we no longer know tape position).
1764 *
1765 * Return all queued I/O with EIO, and unfreeze
1766 * our queue so that future transactions that
1767 * attempt to fix this problem can get to the
1768 * device.
1769 *
1770 */
1771
984263bc 1772 softc->flags |= SA_FLAG_TAPE_FROZEN;
81b5c339
MD		 1773 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL) {
1774 bioq_remove(&softc->bio_queue, q_bio);
1775 q_bp = q_bio->bio_buf;
984263bc
MD		 1776 q_bp->b_resid = q_bp->b_bcount;
1777 q_bp->b_error = EIO;
1778 q_bp->b_flags |= B_ERROR;
81b5c339 1779 biodone(q_bio);
984263bc 1780 }
984263bc
MD		 1781 }
1782 if (error != 0) {
1783 bp->b_resid = bp->b_bcount;
1784 bp->b_error = error;
1785 bp->b_flags |= B_ERROR;
1786 /*
1787 * In the error case, position is updated in saerror.
1788 */
1789 } else {
1790 bp->b_resid = csio->resid;
1791 bp->b_error = 0;
1792 if (csio->resid != 0) {
1793 bp->b_flags |= B_ERROR;
1794 }
10f3fee5 1795 if (bp->b_cmd != BUF_CMD_READ) {
984263bc
MD		 1796 softc->flags |= SA_FLAG_TAPE_WRITTEN;
1797 softc->filemarks = 0;
1798 }
1799 if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) &&
1800 (softc->blkno != (daddr_t) -1)) {
1801 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1802 u_int32_t l;
1803 if (softc->blk_shift != 0) {
1804 l = bp->b_bcount >>
1805 softc->blk_shift;
1806 } else {
1807 l = bp->b_bcount /
1808 softc->media_blksize;
1809 }
1810 softc->blkno += (daddr_t) l;
1811 } else {
1812 softc->blkno++;
1813 }
1814 }
1815 }
1816 /*
1817 * If we had an error (immediate or pending),
1818 * release the device queue now.
1819 */
1820 if (error || (softc->flags & SA_FLAG_ERR_PENDING))
1821 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0);
1822#ifdef CAMDEBUG
1823 if (error || bp->b_resid) {
1824 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
c789717e 1825 ("error %d resid %d count %d\n", error,
984263bc
MD		 1826 bp->b_resid, bp->b_bcount));
1827 }
1828#endif
1829 devstat_end_transaction_buf(&softc->device_stats, bp);
81b5c339 1830 biodone(bio);
984263bc
MD		 1831 break;
1832 }
1833 case SA_CCB_WAITING:
1834 {
1835 /* Caller will release the CCB */
1836 wakeup(&done_ccb->ccb_h.cbfcnp);
1837 return;
1838 }
1839 }
1840 xpt_release_ccb(done_ccb);
1841}
1842
1843/*
1844 * Mount the tape (make sure it's ready for I/O).
1845 */
1846static int
b13267a5 1847samount(struct cam_periph *periph, int oflags, cdev_t dev)
984263bc
MD		 1848{
1849 struct sa_softc *softc;
1850 union ccb *ccb;
1851 int error;
1852
1853 /*
1854 * oflags can be checked for 'kind' of open (read-only check) - later
1855 * dev can be checked for a control-mode or compression open - later
1856 */
1857 UNUSED_PARAMETER(oflags);
1858 UNUSED_PARAMETER(dev);
1859
1860
1861 softc = (struct sa_softc *)periph->softc;
1862
1863 /*
1864 * This should determine if something has happend since the last
1865 * open/mount that would invalidate the mount. We do *not* want
1866 * to retry this command- we just want the status. But we only
1867 * do this if we're mounted already- if we're not mounted,
1868 * we don't care about the unit read state and can instead use
1869 * this opportunity to attempt to reserve the tape unit.
1870 */
1871
1872 if (softc->flags & SA_FLAG_TAPE_MOUNTED) {
1873 ccb = cam_periph_getccb(periph, 1);
1874 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1875 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
1876 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1877 &softc->device_stats);
1878 QFRLS(ccb);
1879 if (error == ENXIO) {
1880 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1881 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1882 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
1883 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1884 &softc->device_stats);
1885 QFRLS(ccb);
1886 } else if (error) {
1887 /*
1888 * We don't need to freeze the tape because we
1889 * will now attempt to rewind/load it.
1890 */
1891 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
df602c9d 1892 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
1c8b7a9a
PA		 1893 xpt_print(periph->path,
1894 "error %d on TUR in samount\n", error);
984263bc
MD		 1895 }
1896 }
1897 } else {
1898 error = sareservereleaseunit(periph, TRUE);
1899 if (error) {
1900 return (error);
1901 }
1902 ccb = cam_periph_getccb(periph, 1);
1903 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1904 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
1905 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1906 &softc->device_stats);
1907 QFRLS(ccb);
1908 }
1909
1910 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
1911 struct scsi_read_block_limits_data *rblim = NULL;
1912 int comp_enabled, comp_supported;
1913 u_int8_t write_protect, guessing = 0;
1914
1915 /*
1916 * Clear out old state.
1917 */
1918 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN|
1919 SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED|
1920 SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP);
1921 softc->filemarks = 0;
1922
1923 /*
1924 * *Very* first off, make sure we're loaded to BOT.
1925 */
1926 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
1927 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT);
1928 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1929 &softc->device_stats);
1930 QFRLS(ccb);
1931
1932 /*
1933 * In case this doesn't work, do a REWIND instead
1934 */
1935 if (error) {
1936 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
1937 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
1938 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1939 &softc->device_stats);
1940 QFRLS(ccb);
1941 }
1942 if (error) {
1943 xpt_release_ccb(ccb);
1944 goto exit;
1945 }
1946
1947 /*
1948 * Do a dummy test read to force access to the
1949 * media so that the drive will really know what's
1950 * there. We actually don't really care what the
1951 * blocksize on tape is and don't expect to really
1952 * read a full record.
1953 */
1c8b7a9a 1954 rblim = kmalloc(8192, M_SCSISA, M_INTWAIT);
984263bc
MD		 1955
1956 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
1957 scsi_sa_read_write(&ccb->csio, 0, sadone,
1958 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
1959 (void *) rblim, 8192, SSD_FULL_SIZE,
1960 IO_TIMEOUT);
0e224b5d 1961 cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
984263bc
MD		 1962 &softc->device_stats);
1963 QFRLS(ccb);
1964 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
1965 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
b05e84c9
PA		 1966 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
1967 SF_NO_PRINT | SF_RETRY_UA,
984263bc
MD		 1968 &softc->device_stats);
1969 QFRLS(ccb);
1970 if (error) {
1c8b7a9a
PA		 1971 xpt_print(periph->path,
1972 "unable to rewind after test read\n");
984263bc
MD		 1973 xpt_release_ccb(ccb);
1974 goto exit;
1975 }
1976 }
1977
1978 /*
1979 * Next off, determine block limits.
1980 */
1981 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
1982 rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
1983
b05e84c9
PA		 1984 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
1985 SF_NO_PRINT | SF_RETRY_UA, &softc->device_stats);
1986
984263bc
MD		 1987 QFRLS(ccb);
1988 xpt_release_ccb(ccb);
1989
1990 if (error != 0) {
1991 /*
1992 * If it's less than SCSI-2, READ BLOCK LIMITS is not
1993 * a MANDATORY command. Anyway- it doesn't matter-
1994 * we can proceed anyway.
1995 */
1996 softc->blk_gran = 0;
1997 softc->max_blk = ~0;
1998 softc->min_blk = 0;
1999 } else {
b05e84c9 2000 if (softc->scsi_rev >= SCSI_REV_SPC) {
984263bc
MD		 2001 softc->blk_gran = RBL_GRAN(rblim);
2002 } else {
2003 softc->blk_gran = 0;
2004 }
2005 /*
2006 * We take max_blk == min_blk to mean a default to
2007 * fixed mode- but note that whatever we get out of
2008 * sagetparams below will actually determine whether
2009 * we are actually *in* fixed mode.
2010 */
2011 softc->max_blk = scsi_3btoul(rblim->maximum);
2012 softc->min_blk = scsi_2btoul(rblim->minimum);
2013
2014
2015 }
2016 /*
2017 * Next, perform a mode sense to determine
2018 * current density, blocksize, compression etc.
2019 */
2020 error = sagetparams(periph, SA_PARAM_ALL,
2021 &softc->media_blksize,
2022 &softc->media_density,
2023 &softc->media_numblks,
2024 &softc->buffer_mode, &write_protect,
2025 &softc->speed, &comp_supported,
2026 &comp_enabled, &softc->comp_algorithm,
2027 NULL);
2028
2029 if (error != 0) {
2030 /*
2031 * We could work a little harder here. We could
2032 * adjust our attempts to get information. It
2033 * might be an ancient tape drive. If someone
2034 * nudges us, we'll do that.
2035 */
2036 goto exit;
2037 }
2038
2039 /*
2040 * If no quirk has determined that this is a device that is
2041 * preferred to be in fixed or variable mode, now is the time
2042 * to find out.
2043 */
2044 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) {
2045 guessing = 1;
2046 /*
2047 * This could be expensive to find out. Luckily we
2048 * only need to do this once. If we start out in
2049 * 'default' mode, try and set ourselves to one
2050 * of the densities that would determine a wad
2051 * of other stuff. Go from highest to lowest.
2052 */
2053 if (softc->media_density == SCSI_DEFAULT_DENSITY) {
2054 int i;
2055 static u_int8_t ctry[] = {
2056 SCSI_DENSITY_HALFINCH_PE,
2057 SCSI_DENSITY_HALFINCH_6250C,
2058 SCSI_DENSITY_HALFINCH_6250,
2059 SCSI_DENSITY_HALFINCH_1600,
2060 SCSI_DENSITY_HALFINCH_800,
2061 SCSI_DENSITY_QIC_4GB,
2062 SCSI_DENSITY_QIC_2GB,
2063 SCSI_DENSITY_QIC_525_320,
2064 SCSI_DENSITY_QIC_150,
2065 SCSI_DENSITY_QIC_120,
2066 SCSI_DENSITY_QIC_24,
2067 SCSI_DENSITY_QIC_11_9TRK,
2068 SCSI_DENSITY_QIC_11_4TRK,
2069 SCSI_DENSITY_QIC_1320,
2070 SCSI_DENSITY_QIC_3080,
2071 0
2072 };
2073 for (i = 0; ctry[i]; i++) {
2074 error = sasetparams(periph,
2075 SA_PARAM_DENSITY, 0, ctry[i],
2076 0, SF_NO_PRINT);
2077 if (error == 0) {
2078 softc->media_density = ctry[i];
2079 break;
2080 }
2081 }
2082 }
2083 switch (softc->media_density) {
2084 case SCSI_DENSITY_QIC_11_4TRK:
2085 case SCSI_DENSITY_QIC_11_9TRK:
2086 case SCSI_DENSITY_QIC_24:
2087 case SCSI_DENSITY_QIC_120:
2088 case SCSI_DENSITY_QIC_150:
2089 case SCSI_DENSITY_QIC_525_320:
2090 case SCSI_DENSITY_QIC_1320:
2091 case SCSI_DENSITY_QIC_3080:
2092 softc->quirks &= ~SA_QUIRK_2FM;
2093 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
2094 softc->last_media_blksize = 512;
2095 break;
2096 case SCSI_DENSITY_QIC_4GB:
2097 case SCSI_DENSITY_QIC_2GB:
2098 softc->quirks &= ~SA_QUIRK_2FM;
2099 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
2100 softc->last_media_blksize = 1024;
2101 break;
2102 default:
2103 softc->last_media_blksize =
2104 softc->media_blksize;
2105 softc->quirks |= SA_QUIRK_VARIABLE;
2106 break;
2107 }
2108 }
2109
2110 /*
2111 * If no quirk has determined that this is a device that needs
2112 * to have 2 Filemarks at EOD, now is the time to find out.
2113 */
2114
2115 if ((softc->quirks & SA_QUIRK_2FM) == 0) {
2116 switch (softc->media_density) {
2117 case SCSI_DENSITY_HALFINCH_800:
2118 case SCSI_DENSITY_HALFINCH_1600:
2119 case SCSI_DENSITY_HALFINCH_6250:
2120 case SCSI_DENSITY_HALFINCH_6250C:
2121 case SCSI_DENSITY_HALFINCH_PE:
2122 softc->quirks &= ~SA_QUIRK_1FM;
2123 softc->quirks |= SA_QUIRK_2FM;
2124 break;
2125 default:
2126 break;
2127 }
2128 }
2129
2130 /*
2131 * Now validate that some info we got makes sense.
2132 */
2133 if ((softc->max_blk < softc->media_blksize) ||
2134 (softc->min_blk > softc->media_blksize &&
2135 softc->media_blksize)) {
1c8b7a9a
PA		 2136 xpt_print(periph->path,
2137 "BLOCK LIMITS (%d..%d) could not match current "
984263bc
MD		 2138 "block settings (%d)- adjusting\n", softc->min_blk,
2139 softc->max_blk, softc->media_blksize);
2140 softc->max_blk = softc->min_blk =
2141 softc->media_blksize;
2142 }
2143
2144 /*
2145 * Now put ourselves into the right frame of mind based
2146 * upon quirks...
2147 */
2148tryagain:
2149 /*
2150 * If we want to be in FIXED mode and our current blocksize
2151 * is not equal to our last blocksize (if nonzero), try and
2152 * set ourselves to this last blocksize (as the 'preferred'
2153 * block size). The initial quirkmatch at registry sets the
2154 * initial 'last' blocksize. If, for whatever reason, this
2155 * 'last' blocksize is zero, set the blocksize to 512,
2156 * or min_blk if that's larger.
2157 */
2158 if ((softc->quirks & SA_QUIRK_FIXED) &&
2159 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 &&
2160 (softc->media_blksize != softc->last_media_blksize)) {
2161 softc->media_blksize = softc->last_media_blksize;
2162 if (softc->media_blksize == 0) {
2163 softc->media_blksize = 512;
2164 if (softc->media_blksize < softc->min_blk) {
2165 softc->media_blksize = softc->min_blk;
2166 }
2167 }
2168 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2169 softc->media_blksize, 0, 0, SF_NO_PRINT);
2170 if (error) {
1c8b7a9a
PA		 2171 xpt_print(periph->path,
2172 "unable to set fixed blocksize to %d\n",
2173 softc->media_blksize);
984263bc
MD		 2174 goto exit;
2175 }
2176 }
2177
2178 if ((softc->quirks & SA_QUIRK_VARIABLE) &&
2179 (softc->media_blksize != 0)) {
2180 softc->last_media_blksize = softc->media_blksize;
2181 softc->media_blksize = 0;
2182 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2183 0, 0, 0, SF_NO_PRINT);
2184 if (error) {
2185 /*
2186 * If this fails and we were guessing, just
2187 * assume that we got it wrong and go try
2188 * fixed block mode. Don't even check against
2189 * density code at this point.
2190 */
2191 if (guessing) {
2192 softc->quirks &= ~SA_QUIRK_VARIABLE;
2193 softc->quirks |= SA_QUIRK_FIXED;
2194 if (softc->last_media_blksize == 0)
2195 softc->last_media_blksize = 512;
2196 goto tryagain;
2197 }
1c8b7a9a
PA		 2198 xpt_print(periph->path,
2199 "unable to set variable blocksize\n");
984263bc
MD		 2200 goto exit;
2201 }
2202 }
2203
2204 /*
2205 * Now that we have the current block size,
2206 * set up some parameters for sastart's usage.
2207 */
2208 if (softc->media_blksize) {
2209 softc->flags |= SA_FLAG_FIXED;
2210 if (powerof2(softc->media_blksize)) {
2211 softc->blk_shift =
2212 ffs(softc->media_blksize) - 1;
2213 softc->blk_mask = softc->media_blksize - 1;
2214 } else {
2215 softc->blk_mask = ~0;
2216 softc->blk_shift = 0;
2217 }
2218 } else {
2219 /*
2220 * The SCSI-3 spec allows 0 to mean "unspecified".
2221 * The SCSI-1 spec allows 0 to mean 'infinite'.
2222 *
2223 * Either works here.
2224 */
2225 if (softc->max_blk == 0) {
2226 softc->max_blk = ~0;
2227 }
2228 softc->blk_shift = 0;
2229 if (softc->blk_gran != 0) {
2230 softc->blk_mask = softc->blk_gran - 1;
2231 } else {
2232 softc->blk_mask = 0;
2233 }
2234 }
2235
2236 if (write_protect)
2237 softc->flags |= SA_FLAG_TAPE_WP;
2238
2239 if (comp_supported) {
2240 if (softc->saved_comp_algorithm == 0)
2241 softc->saved_comp_algorithm =
2242 softc->comp_algorithm;
2243 softc->flags |= SA_FLAG_COMP_SUPP;
2244 if (comp_enabled)
2245 softc->flags |= SA_FLAG_COMP_ENABLED;
2246 } else
2247 softc->flags |= SA_FLAG_COMP_UNSUPP;
2248
2249 if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) &&
2250 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) {
2251 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0,
2252 0, 0, SF_NO_PRINT);
2253 if (error == 0) {
2254 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF;
2255 } else {
1c8b7a9a
PA		 2256 xpt_print(periph->path,
2257 "unable to set buffered mode\n");
984263bc
MD		 2258 }
2259 error = 0; /* not an error */
2260 }
2261
2262
2263 if (error == 0) {
2264 softc->flags |= SA_FLAG_TAPE_MOUNTED;
2265 }
2266exit:
2267 if (rblim != NULL)
1c8b7a9a 2268 kfree(rblim, M_SCSISA);
984263bc
MD		 2269
2270 if (error != 0) {
2271 softc->dsreg = MTIO_DSREG_NIL;
2272 } else {
2273 softc->fileno = softc->blkno = 0;
2274 softc->dsreg = MTIO_DSREG_REST;
2275 }
2276#ifdef SA_1FM_AT_EOD
2277 if ((softc->quirks & SA_QUIRK_2FM) == 0)
2278 softc->quirks |= SA_QUIRK_1FM;
2279#else
2280 if ((softc->quirks & SA_QUIRK_1FM) == 0)
2281 softc->quirks |= SA_QUIRK_2FM;
2282#endif
2283 } else
2284 xpt_release_ccb(ccb);
2285
2286 /*
2287 * If we return an error, we're not mounted any more,
2288 * so release any device reservation.
2289 */
2290 if (error != 0) {
0e224b5d 2291 sareservereleaseunit(periph, FALSE);
984263bc
MD		 2292 } else {
2293 /*
2294 * Clear I/O residual.
2295 */
2296 softc->last_io_resid = 0;
2297 softc->last_ctl_resid = 0;
2298 }
2299 return (error);
2300}
2301
2302/*
2303 * How many filemarks do we need to write if we were to terminate the
2304 * tape session right now? Note that this can be a negative number
2305 */
2306
2307static int
2308samarkswanted(struct cam_periph *periph)
2309{
2310 int markswanted;
2311 struct sa_softc *softc;
2312
2313 softc = (struct sa_softc *)periph->softc;
2314 markswanted = 0;
2315 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) {
2316 markswanted++;
2317 if (softc->quirks & SA_QUIRK_2FM)
2318 markswanted++;
2319 }
2320 markswanted -= softc->filemarks;
2321 return (markswanted);
2322}
2323
2324static int
2325sacheckeod(struct cam_periph *periph)
2326{
2327 int error;
2328 int markswanted;
984263bc 2329
984263bc
MD		 2330 markswanted = samarkswanted(periph);
2331
2332 if (markswanted > 0) {
2333 error = sawritefilemarks(periph, markswanted, FALSE);
2334 } else {
2335 error = 0;
2336 }
2337 return (error);
2338}
2339
2340static int
2341saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs)
2342{
2343 static const char *toobig =
2344 "%d-byte tape record bigger than supplied buffer\n";
2345 struct cam_periph *periph;
2346 struct sa_softc *softc;
2347 struct ccb_scsiio *csio;
2348 struct scsi_sense_data *sense;
2349 u_int32_t resid = 0;
2350 int32_t info = 0;
2351 cam_status status;
2352 int error_code, sense_key, asc, ascq, error, aqvalid;
2353
2354 periph = xpt_path_periph(ccb->ccb_h.path);
2355 softc = (struct sa_softc *)periph->softc;
2356 csio = &ccb->csio;
2357 sense = &csio->sense_data;
2358 scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq);
2359 aqvalid = sense->extra_len >= 6;
2360 error = 0;
2361
2362 status = csio->ccb_h.status & CAM_STATUS_MASK;
2363
2364 /*
2365 * Calculate/latch up, any residuals... We do this in a funny 2-step
2366 * so we can print stuff here if we have CAM_DEBUG enabled for this
2367 * unit.
2368 */
2369 if (status == CAM_SCSI_STATUS_ERROR) {
2370 if ((sense->error_code & SSD_ERRCODE_VALID) != 0) {
2371 info = (int32_t) scsi_4btoul(sense->info);
2372 resid = info;
2373 if ((softc->flags & SA_FLAG_FIXED) != 0)
2374 resid *= softc->media_blksize;
2375 } else {
2376 resid = csio->dxfer_len;
2377 info = resid;
2378 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2379 if (softc->media_blksize)
2380 info /= softc->media_blksize;
2381 }
2382 }
2383 if (CCB_Type(csio) == SA_CCB_BUFFER_IO) {
2384 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense,
2385 sizeof (struct scsi_sense_data));
2386 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb,
2387 (int) csio->cdb_len);
2388 softc->last_io_resid = resid;
2389 softc->last_resid_was_io = 1;
2390 } else {
2391 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense,
2392 sizeof (struct scsi_sense_data));
2393 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb,
2394 (int) csio->cdb_len);
2395 softc->last_ctl_resid = resid;
2396 softc->last_resid_was_io = 0;
2397 }
2398 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x "
2399 "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %d "
2400 "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff,
2401 sense_key, asc, ascq, status,
2402 sense->flags & ~SSD_KEY_RESERVED, resid, csio->dxfer_len));
2403 } else {
2404 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
2405 ("Cam Status 0x%x\n", status));
2406 }
2407
2408 switch (status) {
2409 case CAM_REQ_CMP:
2410 return (0);
2411 case CAM_SCSI_STATUS_ERROR:
2412 /*
2413 * If a read/write command, we handle it here.
2414 */
2415 if (CCB_Type(csio) != SA_CCB_WAITING) {
2416 break;
2417 }
2418 /*
2419 * If this was just EOM/EOP, Filemark, Setmark or ILI detected
2420 * on a non read/write command, we assume it's not an error
2421 * and propagate the residule and return.
2422 */
2423 if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) ||
2424 (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) {
2425 csio->resid = resid;
2426 QFRLS(ccb);
2427 return (0);
2428 }
2429 /*
2430 * Otherwise, we let the common code handle this.
2431 */
2432 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2433
2434 /*
2435 * XXX: To Be Fixed
2436 * We cannot depend upon CAM honoring retry counts for these.
2437 */
2438 case CAM_SCSI_BUS_RESET:
2439 case CAM_BDR_SENT:
2440 if (ccb->ccb_h.retry_count <= 0) {
2441 return (EIO);
984263bc
MD		 2442 }
2443 /* FALLTHROUGH */
2444 default:
2445 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2446 }
2447
2448 /*
2449 * Handle filemark, end of tape, mismatched record sizes....
2450 * From this point out, we're only handling read/write cases.
2451 * Handle writes && reads differently.
2452 */
2453
2454 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
2455 if (sense_key == SSD_KEY_VOLUME_OVERFLOW) {
2456 csio->resid = resid;
2457 error = ENOSPC;
2458 } else if (sense->flags & SSD_EOM) {
2459 softc->flags |= SA_FLAG_EOM_PENDING;
2460 /*
2461 * Grotesque as it seems, the few times
2462 * I've actually seen a non-zero resid,
2463 * the tape drive actually lied and had
d53a8480 2464 * written all the data!.
984263bc
MD		 2465 */
2466 csio->resid = 0;
2467 }
2468 } else {
2469 csio->resid = resid;
2470 if (sense_key == SSD_KEY_BLANK_CHECK) {
2471 if (softc->quirks & SA_QUIRK_1FM) {
2472 error = 0;
2473 softc->flags |= SA_FLAG_EOM_PENDING;
2474 } else {
2475 error = EIO;
2476 }
2477 } else if (sense->flags & SSD_FILEMARK) {
2478 if (softc->flags & SA_FLAG_FIXED) {
2479 error = -1;
2480 softc->flags |= SA_FLAG_EOF_PENDING;
2481 }
2482 /*
2483 * Unconditionally, if we detected a filemark on a read,
2484 * mark that we've run moved a file ahead.
2485 */
2486 if (softc->fileno != (daddr_t) -1) {
2487 softc->fileno++;
2488 softc->blkno = 0;
2489 csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED;
2490 }
2491 }
2492 }
2493
2494 /*
2495 * Incorrect Length usually applies to read, but can apply to writes.
2496 */
2497 if (error == 0 && (sense->flags & SSD_ILI)) {
2498 if (info < 0) {
1c8b7a9a
PA		 2499 xpt_print(csio->ccb_h.path, toobig,
2500 csio->dxfer_len - info);
984263bc
MD		 2501 csio->resid = csio->dxfer_len;
2502 error = EIO;
2503 } else {
2504 csio->resid = resid;
2505 if (softc->flags & SA_FLAG_FIXED) {
2506 softc->flags |= SA_FLAG_EIO_PENDING;
2507 }
2508 /*
2509 * Bump the block number if we hadn't seen a filemark.
2510 * Do this independent of errors (we've moved anyway).
2511 */
2512 if ((sense->flags & SSD_FILEMARK) == 0) {
2513 if (softc->blkno != (daddr_t) -1) {
2514 softc->blkno++;
2515 csio->ccb_h.ccb_pflags |=
2516 SA_POSITION_UPDATED;
2517 }
2518 }
2519 }
2520 }
2521
2522 if (error <= 0) {
2523 /*
2524 * Unfreeze the queue if frozen as we're not returning anything
2525 * to our waiters that would indicate an I/O error has occurred
2526 * (yet).
2527 */
2528 QFRLS(ccb);
2529 error = 0;
2530 }
2531 return (error);
2532}
2533
2534static int
2535sagetparams(struct cam_periph *periph, sa_params params_to_get,
2536 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks,
2537 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed,
2538 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm,
2539 sa_comp_t *tcs)
2540{
2541 union ccb *ccb;
2542 void *mode_buffer;
2543 struct scsi_mode_header_6 *mode_hdr;
2544 struct scsi_mode_blk_desc *mode_blk;
2545 int mode_buffer_len;
2546 struct sa_softc *softc;
2547 u_int8_t cpage;
2548 int error;
2549 cam_status status;
2550
2551 softc = (struct sa_softc *)periph->softc;
2552 ccb = cam_periph_getccb(periph, 1);
2553 if (softc->quirks & SA_QUIRK_NO_CPAGE)
2554 cpage = SA_DEVICE_CONFIGURATION_PAGE;
2555 else
2556 cpage = SA_DATA_COMPRESSION_PAGE;
2557
2558retry:
2559 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2560
2561 if (params_to_get & SA_PARAM_COMPRESSION) {
2562 if (softc->quirks & SA_QUIRK_NOCOMP) {
2563 *comp_supported = FALSE;
2564 params_to_get &= ~SA_PARAM_COMPRESSION;
2565 } else
2566 mode_buffer_len += sizeof (sa_comp_t);
2567 }
2568
1c8b7a9a 2569 mode_buffer = kmalloc(mode_buffer_len, M_SCSISA, M_INTWAIT | M_ZERO);
984263bc
MD		 2570 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2571 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2572
2573 /* it is safe to retry this */
2574 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2575 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ?
2576 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len,
2577 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
2578
2579 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2580 &softc->device_stats);
2581 QFRLS(ccb);
2582
2583 status = ccb->ccb_h.status & CAM_STATUS_MASK;
2584
2585 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) {
2586 /*
2587 * Hmm. Let's see if we can try another page...
2588 * If we've already done that, give up on compression
2589 * for this device and remember this for the future
2590 * and attempt the request without asking for compression
2591 * info.
2592 */
2593 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2594 cpage = SA_DEVICE_CONFIGURATION_PAGE;
2595 goto retry;
2596 }
2597 softc->quirks |= SA_QUIRK_NOCOMP;
1c8b7a9a 2598 kfree(mode_buffer, M_SCSISA);
984263bc
MD		 2599 goto retry;
2600 } else if (status == CAM_SCSI_STATUS_ERROR) {
2601 /* Tell the user about the fatal error. */
2602 scsi_sense_print(&ccb->csio);
2603 goto sagetparamsexit;
2604 }
2605
2606 /*
2607 * If the user only wants the compression information, and
2608 * the device doesn't send back the block descriptor, it's
2609 * no big deal. If the user wants more than just
2610 * compression, though, and the device doesn't pass back the
2611 * block descriptor, we need to send another mode sense to
2612 * get the block descriptor.
2613 */
2614 if ((mode_hdr->blk_desc_len == 0) &&
2615 (params_to_get & SA_PARAM_COMPRESSION) &&
2616 (params_to_get & ~(SA_PARAM_COMPRESSION))) {
2617
2618 /*
2619 * Decrease the mode buffer length by the size of
2620 * the compression page, to make sure the data
2621 * there doesn't get overwritten.
2622 */
2623 mode_buffer_len -= sizeof (sa_comp_t);
2624
2625 /*
2626 * Now move the compression page that we presumably
2627 * got back down the memory chunk a little bit so
2628 * it doesn't get spammed.
2629 */
2630 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t));
2631 bzero(&mode_hdr[0], sizeof (mode_hdr[0]));
2632
2633 /*
2634 * Now, we issue another mode sense and just ask
2635 * for the block descriptor, etc.
2636 */
2637
2638 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2639 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE,
2640 mode_buffer, mode_buffer_len, SSD_FULL_SIZE,
2641 SCSIOP_TIMEOUT);
2642
2643 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2644 &softc->device_stats);
2645 QFRLS(ccb);
2646
2647 if (error != 0)
2648 goto sagetparamsexit;
2649 }
2650
2651 if (params_to_get & SA_PARAM_BLOCKSIZE)
2652 *blocksize = scsi_3btoul(mode_blk->blklen);
2653
2654 if (params_to_get & SA_PARAM_NUMBLOCKS)
2655 *numblocks = scsi_3btoul(mode_blk->nblocks);
2656
2657 if (params_to_get & SA_PARAM_BUFF_MODE)
2658 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK;
2659
2660 if (params_to_get & SA_PARAM_DENSITY)
2661 *density = mode_blk->density;
2662
2663 if (params_to_get & SA_PARAM_WP)
2664 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE;
2665
2666 if (params_to_get & SA_PARAM_SPEED)
2667 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK;
2668
2669 if (params_to_get & SA_PARAM_COMPRESSION) {
2670 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1];
2671 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2672 struct scsi_data_compression_page *cp = &ntcs->dcomp;
2673 *comp_supported =
2674 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE;
2675 *comp_enabled =
2676 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE;
2677 *comp_algorithm = scsi_4btoul(cp->comp_algorithm);
2678 } else {
2679 struct scsi_dev_conf_page *cp = &ntcs->dconf;
2680 /*
2681 * We don't really know whether this device supports
2682 * Data Compression if the the algorithm field is
2683 * zero. Just say we do.
2684 */
2685 *comp_supported = TRUE;
2686 *comp_enabled =
2687 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE;
2688 *comp_algorithm = cp->sel_comp_alg;
2689 }
2690 if (tcs != NULL)
2691 bcopy(ntcs, tcs, sizeof (sa_comp_t));
2692 }
2693
2694 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2695 int idx;
2696 char *xyz = mode_buffer;
2697 xpt_print_path(periph->path);
85f8e2ea 2698 kprintf("Mode Sense Data=");
984263bc 2699 for (idx = 0; idx < mode_buffer_len; idx++)
85f8e2ea
SW		 2700 kprintf(" 0x%02x", xyz[idx] & 0xff);
2701 kprintf("\n");
984263bc
MD		 2702 }
2703
2704sagetparamsexit:
2705
2706 xpt_release_ccb(ccb);
1c8b7a9a 2707 kfree(mode_buffer, M_SCSISA);
984263bc
MD		 2708 return (error);
2709}
2710
2711/*
2712 * The purpose of this function is to set one of four different parameters
2713 * for a tape drive:
2714 * - blocksize
2715 * - density
2716 * - compression / compression algorithm
2717 * - buffering mode
2718 *
2719 * The assumption is that this will be called from saioctl(), and therefore
2720 * from a process context. Thus the waiting malloc calls below. If that
2721 * assumption ever changes, the malloc calls should be changed to be
2722 * NOWAIT mallocs.
2723 *
2724 * Any or all of the four parameters may be set when this function is
2725 * called. It should handle setting more than one parameter at once.
2726 */
2727static int
2728sasetparams(struct cam_periph *periph, sa_params params_to_set,
2729 u_int32_t blocksize, u_int8_t density, u_int32_t calg,
2730 u_int32_t sense_flags)
2731{
2732 struct sa_softc *softc;
2733 u_int32_t current_blocksize;
2734 u_int32_t current_calg;
2735 u_int8_t current_density;
2736 u_int8_t current_speed;
2737 int comp_enabled, comp_supported;
2738 void *mode_buffer;
2739 int mode_buffer_len;
2740 struct scsi_mode_header_6 *mode_hdr;
2741 struct scsi_mode_blk_desc *mode_blk;
2742 sa_comp_t *ccomp, *cpage;
2743 int buff_mode;
2744 union ccb *ccb = NULL;
2745 int error;
2746
2747 softc = (struct sa_softc *)periph->softc;
2748
1c8b7a9a 2749 ccomp = kmalloc(sizeof (sa_comp_t), M_SCSISA, M_INTWAIT);
984263bc
MD		 2750
2751 /*
2752 * Since it doesn't make sense to set the number of blocks, or
2753 * write protection, we won't try to get the current value. We
2754 * always want to get the blocksize, so we can set it back to the
2755 * proper value.
2756 */
2757 error = sagetparams(periph,
2758 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED,
2759 &current_blocksize, &current_density, NULL, &buff_mode, NULL,
2760 &current_speed, &comp_supported, &comp_enabled,
2761 &current_calg, ccomp);
2762
2763 if (error != 0) {
1c8b7a9a 2764 kfree(ccomp, M_SCSISA);
984263bc
MD		 2765 return (error);
2766 }
2767
2768 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2769 if (params_to_set & SA_PARAM_COMPRESSION)
2770 mode_buffer_len += sizeof (sa_comp_t);
2771
1c8b7a9a 2772 mode_buffer = kmalloc(mode_buffer_len, M_SCSISA, M_INTWAIT | M_ZERO);
984263bc
MD		 2773
2774 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2775 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2776
2777 ccb = cam_periph_getccb(periph, 1);
2778
2779retry:
2780
2781 if (params_to_set & SA_PARAM_COMPRESSION) {
2782 if (mode_blk) {
2783 cpage = (sa_comp_t *)&mode_blk[1];
2784 } else {
2785 cpage = (sa_comp_t *)&mode_hdr[1];
2786 }
2787 bcopy(ccomp, cpage, sizeof (sa_comp_t));
2788 cpage->hdr.pagecode &= ~0x80;
2789 } else
2790 cpage = NULL;
2791
2792 /*
2793 * If the caller wants us to set the blocksize, use the one they
2794 * pass in. Otherwise, use the blocksize we got back from the
2795 * mode select above.
2796 */
2797 if (mode_blk) {
2798 if (params_to_set & SA_PARAM_BLOCKSIZE)
2799 scsi_ulto3b(blocksize, mode_blk->blklen);
2800 else
2801 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2802
2803 /*
2804 * Set density if requested, else preserve old density.
2805 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2806 * devices, else density we've latched up in our softc.
2807 */
2808 if (params_to_set & SA_PARAM_DENSITY) {
2809 mode_blk->density = density;
2810 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2811 mode_blk->density = SCSI_SAME_DENSITY;
2812 } else {
2813 mode_blk->density = softc->media_density;
2814 }
2815 }
2816
2817 /*
2818 * For mode selects, these two fields must be zero.
2819 */
2820 mode_hdr->data_length = 0;
2821 mode_hdr->medium_type = 0;
2822
2823 /* set the speed to the current value */
2824 mode_hdr->dev_spec = current_speed;
2825
f7dd4893
PA		 2826 /* if set, set single-initiator buffering mode */
2827 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) {
2828 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
2829 }
984263bc
MD		 2830
2831 if (mode_blk)
2832 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc);
2833 else
2834 mode_hdr->blk_desc_len = 0;
2835
2836 /*
2837 * First, if the user wants us to set the compression algorithm or
2838 * just turn compression on, check to make sure that this drive
2839 * supports compression.
2840 */
2841 if (params_to_set & SA_PARAM_COMPRESSION) {
2842 /*
2843 * If the compression algorithm is 0, disable compression.
2844 * If the compression algorithm is non-zero, enable
2845 * compression and set the compression type to the
2846 * specified compression algorithm, unless the algorithm is
2847 * MT_COMP_ENABLE. In that case, we look at the
2848 * compression algorithm that is currently set and if it is
2849 * non-zero, we leave it as-is. If it is zero, and we have
2850 * saved a compression algorithm from a time when
2851 * compression was enabled before, set the compression to
2852 * the saved value.
2853 */
2854 switch (ccomp->hdr.pagecode & ~0x80) {
41afe5bf
PA		 2855 case SA_DEVICE_CONFIGURATION_PAGE:
2856 {
2857 struct scsi_dev_conf_page *dcp = &cpage->dconf;
2858 if (calg == 0) {
2859 dcp->sel_comp_alg = SA_COMP_NONE;
2860 break;
2861 }
2862 if (calg != MT_COMP_ENABLE) {
2863 dcp->sel_comp_alg = calg;
2864 } else if (dcp->sel_comp_alg == SA_COMP_NONE &&
2865 softc->saved_comp_algorithm != 0) {
2866 dcp->sel_comp_alg = softc->saved_comp_algorithm;
2867 }
2868 break;
2869 }
984263bc
MD		 2870 case SA_DATA_COMPRESSION_PAGE:
2871 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) {
2872 struct scsi_data_compression_page *dcp = &cpage->dcomp;
2873 if (calg == 0) {
2874 /*
2875 * Disable compression, but leave the
2876 * decompression and the capability bit
2877 * alone.
2878 */
2879 dcp->dce_and_dcc = SA_DCP_DCC;
2880 dcp->dde_and_red |= SA_DCP_DDE;
2881 break;
2882 }
2883 /* enable compression && decompression */
2884 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC;
2885 dcp->dde_and_red |= SA_DCP_DDE;
2886 /*
2887 * If there, use compression algorithm from caller.
2888 * Otherwise, if there's a saved compression algorithm
2889 * and there is no current algorithm, use the saved
2890 * algorithm. Else parrot back what we got and hope
2891 * for the best.
2892 */
2893 if (calg != MT_COMP_ENABLE) {
2894 scsi_ulto4b(calg, dcp->comp_algorithm);
2895 scsi_ulto4b(calg, dcp->decomp_algorithm);
2896 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 &&
2897 softc->saved_comp_algorithm != 0) {
2898 scsi_ulto4b(softc->saved_comp_algorithm,
2899 dcp->comp_algorithm);
2900 scsi_ulto4b(softc->saved_comp_algorithm,
2901 dcp->decomp_algorithm);
2902 }
2903 break;
2904 }
41afe5bf
PA		 2905 /*
2906 * Compression does not appear to be supported-
2907 * at least via the DATA COMPRESSION page. It
2908 * would be too much to ask us to believe that
2909 * the page itself is supported, but incorrectly
2910 * reports an ability to manipulate data compression,
2911 * so we'll assume that this device doesn't support
2912 * compression. We can just fall through for that.
2913 */
2914 /* FALLTHROUGH */
984263bc
MD		 2915 default:
2916 /*
2917 * The drive doesn't seem to support compression,
2918 * so turn off the set compression bit.
2919 */
2920 params_to_set &= ~SA_PARAM_COMPRESSION;
1c8b7a9a
PA		 2921 xpt_print(periph->path,
2922 "device does not seem to support compression\n");
984263bc
MD		 2923
2924 /*
2925 * If that was the only thing the user wanted us to set,
2926 * clean up allocated resources and return with
2927 * 'operation not supported'.
2928 */
2929 if (params_to_set == SA_PARAM_NONE) {
1c8b7a9a 2930 kfree(mode_buffer, M_SCSISA);
984263bc
MD		 2931 xpt_release_ccb(ccb);
2932 return (ENODEV);
2933 }
2934
2935 /*
2936 * That wasn't the only thing the user wanted us to set.
2937 * So, decrease the stated mode buffer length by the
2938 * size of the compression mode page.
2939 */
2940 mode_buffer_len -= sizeof(sa_comp_t);
2941 }
2942 }
2943
2944 /* It is safe to retry this operation */
2945 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
2946 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE,
2947 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
2948
2949 error = cam_periph_runccb(ccb, saerror, 0,
2950 sense_flags, &softc->device_stats);
2951 QFRLS(ccb);
2952
2953 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2954 int idx;
2955 char *xyz = mode_buffer;
2956 xpt_print_path(periph->path);
85f8e2ea 2957 kprintf("Err%d, Mode Select Data=", error);
984263bc 2958 for (idx = 0; idx < mode_buffer_len; idx++)
85f8e2ea
SW		 2959 kprintf(" 0x%02x", xyz[idx] & 0xff);
2960 kprintf("\n");
984263bc
MD		 2961 }
2962
2963
2964 if (error) {
2965 /*
2966 * If we can, try without setting density/blocksize.
2967 */
2968 if (mode_blk) {
2969 if ((params_to_set &
2970 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) {
2971 mode_blk = NULL;
2972 goto retry;
2973 }
2974 } else {
2975 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2976 cpage = (sa_comp_t *)&mode_blk[1];
2977 }
2978
2979 /*
2980 * If we were setting the blocksize, and that failed, we
2981 * want to set it to its original value. If we weren't
2982 * setting the blocksize, we don't want to change it.
2983 */
2984 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2985
2986 /*
2987 * Set density if requested, else preserve old density.
2988 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2989 * devices, else density we've latched up in our softc.
2990 */
2991 if (params_to_set & SA_PARAM_DENSITY) {
2992 mode_blk->density = current_density;
2993 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2994 mode_blk->density = SCSI_SAME_DENSITY;
2995 } else {
2996 mode_blk->density = softc->media_density;
2997 }
2998
2999 if (params_to_set & SA_PARAM_COMPRESSION)
3000 bcopy(ccomp, cpage, sizeof (sa_comp_t));
3001
3002 /*
3003 * The retry count is the only CCB field that might have been
3004 * changed that we care about, so reset it back to 1.
3005 */
3006 ccb->ccb_h.retry_count = 1;
3007 cam_periph_runccb(ccb, saerror, 0, sense_flags,
3008 &softc->device_stats);
3009 QFRLS(ccb);
3010 }
3011
3012 xpt_release_ccb(ccb);
3013
3014 if (ccomp != NULL)
1c8b7a9a 3015 kfree(ccomp, M_SCSISA);
984263bc
MD		 3016
3017 if (params_to_set & SA_PARAM_COMPRESSION) {
3018 if (error) {
3019 softc->flags &= ~SA_FLAG_COMP_ENABLED;
3020 /*
3021 * Even if we get an error setting compression,
3022 * do not say that we don't support it. We could
3023 * have been wrong, or it may be media specific.
3024 * softc->flags &= ~SA_FLAG_COMP_SUPP;
3025 */
3026 softc->saved_comp_algorithm = softc->comp_algorithm;
3027 softc->comp_algorithm = 0;
3028 } else {
3029 softc->flags |= SA_FLAG_COMP_ENABLED;
3030 softc->comp_algorithm = calg;
3031 }
3032 }
3033
1c8b7a9a 3034 kfree(mode_buffer, M_SCSISA);
984263bc
MD		 3035 return (error);
3036}
3037
3038static void
3039saprevent(struct cam_periph *periph, int action)
3040{
3041 struct sa_softc *softc;
3042 union ccb *ccb;
3043 int error, sf;
3044
3045 softc = (struct sa_softc *)periph->softc;
3046
3047 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0)
3048 return;
3049 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
3050 return;
3051
3052 /*
3053 * We can be quiet about illegal requests.
3054 */
3055 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
3056 sf = 0;
3057 } else
3058 sf = SF_QUIET_IR;
3059
3060 ccb = cam_periph_getccb(periph, 1);
3061
3062 /* It is safe to retry this operation */
3063 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
3064 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
3065
3066 error = cam_periph_runccb(ccb, saerror, 0, sf, &softc->device_stats);
3067 QFRLS(ccb);
3068 if (error == 0) {
3069 if (action == PR_ALLOW)
3070 softc->flags &= ~SA_FLAG_TAPE_LOCKED;
3071 else
3072 softc->flags |= SA_FLAG_TAPE_LOCKED;
3073 }
3074
3075 xpt_release_ccb(ccb);
3076}
3077
3078static int
3079sarewind(struct cam_periph *periph)
3080{
3081 union ccb *ccb;
3082 struct sa_softc *softc;
3083 int error;
3084
3085 softc = (struct sa_softc *)periph->softc;
3086
3087 ccb = cam_periph_getccb(periph, 1);
3088
3089 /* It is safe to retry this operation */
3090 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3091 SSD_FULL_SIZE, REWIND_TIMEOUT);
3092
3093 softc->dsreg = MTIO_DSREG_REW;
3094 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3095 softc->dsreg = MTIO_DSREG_REST;
3096
3097 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3098 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3099
3100 xpt_release_ccb(ccb);
3101 if (error == 0)
3102 softc->fileno = softc->blkno = (daddr_t) 0;
3103 else
3104 softc->fileno = softc->blkno = (daddr_t) -1;
3105 return (error);
3106}
3107
3108static int
3109saspace(struct cam_periph *periph, int count, scsi_space_code code)
3110{
3111 union ccb *ccb;
3112 struct sa_softc *softc;
3113 int error;
3114
3115 softc = (struct sa_softc *)periph->softc;
3116
3117 ccb = cam_periph_getccb(periph, 1);
3118
3119 /* This cannot be retried */
3120
3121 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count,
3122 SSD_FULL_SIZE, SPACE_TIMEOUT);
3123
3124 /*
3125 * Clear residual because we will be using it.
3126 */
3127 softc->last_ctl_resid = 0;
3128
3129 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD;
3130 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3131 softc->dsreg = MTIO_DSREG_REST;
3132
3133 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3134 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3135
3136 xpt_release_ccb(ccb);
3137
3138 /*
3139 * If a spacing operation has failed, we need to invalidate
3140 * this mount.
3141 *
3142 * If the spacing operation was setmarks or to end of recorded data,
3143 * we no longer know our relative position.
3144 *
3145 * If the spacing operations was spacing files in reverse, we
3146 * take account of the residual, but still check against less
3147 * than zero- if we've gone negative, we must have hit BOT.
3148 *
3149 * If the spacing operations was spacing records in reverse and
3150 * we have a residual, we've either hit BOT or hit a filemark.
3151 * In the former case, we know our new record number (0). In
3152 * the latter case, we have absolutely no idea what the real
3153 * record number is- we've stopped between the end of the last
3154 * record in the previous file and the filemark that stopped
3155 * our spacing backwards.
3156 */
3157 if (error) {
3158 softc->fileno = softc->blkno = (daddr_t) -1;
3159 } else if (code == SS_SETMARKS || code == SS_EOD) {
3160 softc->fileno = softc->blkno = (daddr_t) -1;
3161 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) {
3162 softc->fileno += (count - softc->last_ctl_resid);
3163 if (softc->fileno < 0) /* we must of hit BOT */
3164 softc->fileno = 0;
3165 softc->blkno = 0;
3166 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) {
3167 softc->blkno += (count - softc->last_ctl_resid);
3168 if (count < 0) {
3169 if (softc->last_ctl_resid || softc->blkno < 0) {
3170 if (softc->fileno == 0) {
3171 softc->blkno = 0;
3172 } else {
3173 softc->blkno = (daddr_t) -1;
3174 }
3175 }
3176 }
3177 }
3178 return (error);
3179}
3180
3181static int
3182sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks)
3183{
3184 union ccb *ccb;
3185 struct sa_softc *softc;
3186 int error, nwm = 0;
3187
3188 softc = (struct sa_softc *)periph->softc;
35872d89
PA		 3189 if (softc->open_rdonly)
3190 return (EBADF);
984263bc
MD		 3191
3192 ccb = cam_periph_getccb(periph, 1);
3193 /*
3194 * Clear residual because we will be using it.
3195 */
3196 softc->last_ctl_resid = 0;
3197
3198 softc->dsreg = MTIO_DSREG_FMK;
3199 /* this *must* not be retried */
3200 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG,
3201 FALSE, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT);
3202 softc->dsreg = MTIO_DSREG_REST;
3203
3204
3205 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3206
3207 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3208 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3209
3210 if (error == 0 && nmarks) {
3211 struct sa_softc *softc = (struct sa_softc *)periph->softc;
3212 nwm = nmarks - softc->last_ctl_resid;
3213 softc->filemarks += nwm;
3214 }
3215
3216 xpt_release_ccb(ccb);
3217
3218 /*
3219 * Update relative positions (if we're doing that).
3220 */
3221 if (error) {
3222 softc->fileno = softc->blkno = (daddr_t) -1;
3223 } else if (softc->fileno != (daddr_t) -1) {
3224 softc->fileno += nwm;
3225 softc->blkno = 0;
3226 }
3227 return (error);
3228}
3229
3230static int
3231sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3232{
3233 struct scsi_tape_position_data loc;
3234 union ccb *ccb;
3235 struct sa_softc *softc = (struct sa_softc *)periph->softc;
3236 int error;
3237
3238 /*
3239 * We try and flush any buffered writes here if we were writing
3240 * and we're trying to get hardware block position. It eats
3241 * up performance substantially, but I'm wary of drive firmware.
3242 *
3243 * I think that *logical* block position is probably okay-
3244 * but hardware block position might have to wait for data
3245 * to hit media to be valid. Caveat Emptor.
3246 */
3247
3248 if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) {
3249 error = sawritefilemarks(periph, 0, 0);
3250 if (error && error != EACCES)
3251 return (error);
3252 }
3253
3254 ccb = cam_periph_getccb(periph, 1);
3255 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3256 hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
3257 softc->dsreg = MTIO_DSREG_RBSY;
3258 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3259 softc->dsreg = MTIO_DSREG_REST;
3260 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3261 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3262
3263 if (error == 0) {
3264 if (loc.flags & SA_RPOS_UNCERTAIN) {
3265 error = EINVAL; /* nothing is certain */
3266 } else {
3267 *blkptr = scsi_4btoul(loc.firstblk);
3268 }
3269 }
3270
3271 xpt_release_ccb(ccb);
3272 return (error);
3273}
3274
3275static int
3276sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3277{
3278 union ccb *ccb;
3279 struct sa_softc *softc;
3280 int error;
3281
3282 /*
3283 * We used to try and flush any buffered writes here.
3284 * Now we push this onto user applications to either
3285 * flush the pending writes themselves (via a zero count
3286 * WRITE FILEMARKS command) or they can trust their tape
3287 * drive to do this correctly for them.
3288 */
3289
3290 softc = (struct sa_softc *)periph->softc;
3291 ccb = cam_periph_getccb(periph, 1);
3292
3293
3294 scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3295 hard, *blkptr, SSD_FULL_SIZE, SPACE_TIMEOUT);
3296
3297
3298 softc->dsreg = MTIO_DSREG_POS;
3299 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3300 softc->dsreg = MTIO_DSREG_REST;
3301 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3302 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3303 xpt_release_ccb(ccb);
3304 /*
3305 * Note relative file && block number position as now unknown.
3306 */
3307 softc->fileno = softc->blkno = (daddr_t) -1;
3308 return (error);
3309}
3310
3311static int
3312saretension(struct cam_periph *periph)
3313{
3314 union ccb *ccb;
3315 struct sa_softc *softc;
3316 int error;
3317
3318 softc = (struct sa_softc *)periph->softc;
3319
3320 ccb = cam_periph_getccb(periph, 1);
3321
3322 /* It is safe to retry this operation */
3323 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3324 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT);
3325
3326 softc->dsreg = MTIO_DSREG_TEN;
3327 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3328 softc->dsreg = MTIO_DSREG_REST;
3329
3330 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3331 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3332 xpt_release_ccb(ccb);
3333 if (error == 0)
3334 softc->fileno = softc->blkno = (daddr_t) 0;
3335 else
3336 softc->fileno = softc->blkno = (daddr_t) -1;
3337 return (error);
3338}
3339
3340static int
3341sareservereleaseunit(struct cam_periph *periph, int reserve)
3342{
3343 union ccb *ccb;
3344 struct sa_softc *softc;
3345 int error;
3346
3347 softc = (struct sa_softc *)periph->softc;
3348 ccb = cam_periph_getccb(periph, 1);
3349
3350 /* It is safe to retry this operation */
3351 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
3352 FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve);
3353 softc->dsreg = MTIO_DSREG_RBSY;
3354 error = cam_periph_runccb(ccb, saerror, 0,
3355 SF_RETRY_UA | SF_NO_PRINT, &softc->device_stats);
3356 softc->dsreg = MTIO_DSREG_REST;
3357 QFRLS(ccb);
3358 xpt_release_ccb(ccb);
3359
3360 /*
3361 * If the error was Illegal Request, then the device doesn't support
3362 * RESERVE/RELEASE. This is not an error.
3363 */
3364 if (error == EINVAL) {
3365 error = 0;
3366 }
3367
3368 return (error);
3369}
3370
3371static int
3372saloadunload(struct cam_periph *periph, int load)
3373{
3374 union ccb *ccb;
3375 struct sa_softc *softc;
3376 int error;
3377
3378 softc = (struct sa_softc *)periph->softc;
3379
3380 ccb = cam_periph_getccb(periph, 1);
3381
3382 /* It is safe to retry this operation */
3383 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3384 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT);
3385
3386 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL;
3387 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3388 softc->dsreg = MTIO_DSREG_REST;
3389 QFRLS(ccb);
3390 xpt_release_ccb(ccb);
3391
3392 if (error || load == 0)
3393 softc->fileno = softc->blkno = (daddr_t) -1;
3394 else if (error == 0)
3395 softc->fileno = softc->blkno = (daddr_t) 0;
3396 return (error);
3397}
3398
3399static int
3400saerase(struct cam_periph *periph, int longerase)
3401{
3402
3403 union ccb *ccb;
3404 struct sa_softc *softc;
3405 int error;
3406
3407 softc = (struct sa_softc *)periph->softc;
35872d89
PA		 3408 if (softc->open_rdonly)
3409 return (EBADF);
984263bc
MD		 3410
3411 ccb = cam_periph_getccb(periph, 1);
3412
3413 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase,
3414 SSD_FULL_SIZE, ERASE_TIMEOUT);
3415
3416 softc->dsreg = MTIO_DSREG_ZER;
3417 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3418 softc->dsreg = MTIO_DSREG_REST;
3419
3420 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3421 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3422 xpt_release_ccb(ccb);
3423 return (error);
3424}
3425
3426#endif /* _KERNEL */
3427
3428/*
3429 * Read tape block limits command.
3430 */
3431void
3432scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries,
3433 void (*cbfcnp)(struct cam_periph *, union ccb *),
3434 u_int8_t tag_action,
3435 struct scsi_read_block_limits_data *rlimit_buf,
3436 u_int8_t sense_len, u_int32_t timeout)
3437{
3438 struct scsi_read_block_limits *scsi_cmd;
3439
3440 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3441 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len,
3442 sizeof(*scsi_cmd), timeout);
3443
3444 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes;
3445 bzero(scsi_cmd, sizeof(*scsi_cmd));
3446 scsi_cmd->opcode = READ_BLOCK_LIMITS;
3447}
3448
3449void
3450scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
3451 void (*cbfcnp)(struct cam_periph *, union ccb *),
3452 u_int8_t tag_action, int readop, int sli,
3453 int fixed, u_int32_t length, u_int8_t *data_ptr,
3454 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout)
3455{
3456 struct scsi_sa_rw *scsi_cmd;
3457
3458 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes;
3459 scsi_cmd->opcode = readop ? SA_READ : SA_WRITE;
3460 scsi_cmd->sli_fixed = 0;
3461 if (sli && readop)
3462 scsi_cmd->sli_fixed |= SAR_SLI;
3463 if (fixed)
3464 scsi_cmd->sli_fixed |= SARW_FIXED;
3465 scsi_ulto3b(length, scsi_cmd->length);
3466 scsi_cmd->control = 0;
3467
3468 cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT,
3469 tag_action, data_ptr, dxfer_len, sense_len,
3470 sizeof(*scsi_cmd), timeout);
3471}
3472
3473void
3474scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
3475 void (*cbfcnp)(struct cam_periph *, union ccb *),
3476 u_int8_t tag_action, int immediate, int eot,
3477 int reten, int load, u_int8_t sense_len,
3478 u_int32_t timeout)
3479{
3480 struct scsi_load_unload *scsi_cmd;
3481
3482 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes;
3483 bzero(scsi_cmd, sizeof(*scsi_cmd));
3484 scsi_cmd->opcode = LOAD_UNLOAD;
3485 if (immediate)
3486 scsi_cmd->immediate = SLU_IMMED;
3487 if (eot)
3488 scsi_cmd->eot_reten_load |= SLU_EOT;
3489 if (reten)
3490 scsi_cmd->eot_reten_load |= SLU_RETEN;
3491 if (load)
3492 scsi_cmd->eot_reten_load |= SLU_LOAD;
3493
3494 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
3495 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout);
3496}
3497
3498void
3499scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
3500 void (*cbfcnp)(struct cam_periph *, union ccb *),
3501 u_int8_t tag_action, int immediate, u_int8_t sense_len,
3502 u_int32_t timeout)
3503{
3504 struct scsi_rewind *scsi_cmd;
3505
3506 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes;
3507 bzero(scsi_cmd, sizeof(*scsi_cmd));
3508 scsi_cmd->opcode = REWIND;
3509 if (immediate)
3510 scsi_cmd->immediate = SREW_IMMED;
3511
3512 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3513 0, sense_len, sizeof(*scsi_cmd), timeout);
3514}
3515
3516void
3517scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
3518 void (*cbfcnp)(struct cam_periph *, union ccb *),
3519 u_int8_t tag_action, scsi_space_code code,
3520 u_int32_t count, u_int8_t sense_len, u_int32_t timeout)
3521{
3522 struct scsi_space *scsi_cmd;
3523
3524 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes;
3525 scsi_cmd->opcode = SPACE;
3526 scsi_cmd->code = code;
3527 scsi_ulto3b(count, scsi_cmd->count);
3528 scsi_cmd->control = 0;
3529
3530 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3531 0, sense_len, sizeof(*scsi_cmd), timeout);
3532}
3533
3534void
3535scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
3536 void (*cbfcnp)(struct cam_periph *, union ccb *),
3537 u_int8_t tag_action, int immediate, int setmark,
3538 u_int32_t num_marks, u_int8_t sense_len,
3539 u_int32_t timeout)
3540{
3541 struct scsi_write_filemarks *scsi_cmd;
3542
3543 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes;
3544 bzero(scsi_cmd, sizeof(*scsi_cmd));
3545 scsi_cmd->opcode = WRITE_FILEMARKS;
3546 if (immediate)
3547 scsi_cmd->byte2 |= SWFMRK_IMMED;
3548 if (setmark)
3549 scsi_cmd->byte2 |= SWFMRK_WSMK;
3550
3551 scsi_ulto3b(num_marks, scsi_cmd->num_marks);
3552
3553 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3554 0, sense_len, sizeof(*scsi_cmd), timeout);
3555}
3556
3557/*
3558 * The reserve and release unit commands differ only by their opcodes.
3559 */
3560void
3561scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
3562 void (*cbfcnp)(struct cam_periph *, union ccb *),
3563 u_int8_t tag_action, int third_party,
3564 int third_party_id, u_int8_t sense_len,
3565 u_int32_t timeout, int reserve)
3566{
3567 struct scsi_reserve_release_unit *scsi_cmd;
3568
3569 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes;
3570 bzero(scsi_cmd, sizeof(*scsi_cmd));
3571
3572 if (reserve)
3573 scsi_cmd->opcode = RESERVE_UNIT;
3574 else
3575 scsi_cmd->opcode = RELEASE_UNIT;
3576
3577 if (third_party) {
3578 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY;
3579 scsi_cmd->lun_thirdparty |=
3580 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK);
3581 }
3582
3583 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3584 0, sense_len, sizeof(*scsi_cmd), timeout);
3585}
3586
3587void
3588scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
3589 void (*cbfcnp)(struct cam_periph *, union ccb *),
3590 u_int8_t tag_action, int immediate, int long_erase,
3591 u_int8_t sense_len, u_int32_t timeout)
3592{
3593 struct scsi_erase *scsi_cmd;
3594
3595 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes;
3596 bzero(scsi_cmd, sizeof(*scsi_cmd));
3597
3598 scsi_cmd->opcode = ERASE;
3599
3600 if (immediate)
3601 scsi_cmd->lun_imm_long |= SE_IMMED;
3602
3603 if (long_erase)
3604 scsi_cmd->lun_imm_long |= SE_LONG;
3605
3606 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3607 0, sense_len, sizeof(*scsi_cmd), timeout);
3608}
3609
3610/*
3611 * Read Tape Position command.
3612 */
3613void
3614scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries,
3615 void (*cbfcnp)(struct cam_periph *, union ccb *),
3616 u_int8_t tag_action, int hardsoft,
3617 struct scsi_tape_position_data *sbp,
3618 u_int8_t sense_len, u_int32_t timeout)
3619{
3620 struct scsi_tape_read_position *scmd;
3621
3622 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3623 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout);
3624 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
3625 bzero(scmd, sizeof(*scmd));
3626 scmd->opcode = READ_POSITION;
3627 scmd->byte1 = hardsoft;
3628}
3629
3630/*
3631 * Set Tape Position command.
3632 */
3633void
3634scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries,
3635 void (*cbfcnp)(struct cam_periph *, union ccb *),
3636 u_int8_t tag_action, int hardsoft, u_int32_t blkno,
3637 u_int8_t sense_len, u_int32_t timeout)
3638{
3639 struct scsi_tape_locate *scmd;
3640
3641 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
2038fb68 3642 NULL, 0, sense_len, sizeof(*scmd), timeout);
984263bc
MD		 3643 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
3644 bzero(scmd, sizeof(*scmd));
3645 scmd->opcode = LOCATE;
3646 if (hardsoft)
3647 scmd->byte1 |= SA_SPOS_BT;
3648 scsi_ulto4b(blkno, scmd->blkaddr);
3649}
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