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>
40#include <sys/time.h>
41#include <sys/bio.h>
42#include <sys/limits.h>
43#include <sys/malloc.h>
44#include <sys/mtio.h>
45#ifdef _KERNEL
46#include <sys/conf.h>
47#include <sys/sbuf.h>
48#include <sys/sysctl.h>
49#include <sys/taskqueue.h>
50#endif
51#include <sys/fcntl.h>
52#include <sys/devicestat.h>
53
54#ifndef _KERNEL
55#include <stdio.h>
56#include <string.h>
57#endif
58
59#include <cam/cam.h>
60#include <cam/cam_ccb.h>
61#include <cam/cam_periph.h>
62#include <cam/cam_xpt_periph.h>
63#include <cam/cam_debug.h>
64
65#include <cam/scsi/scsi_all.h>
66#include <cam/scsi/scsi_message.h>
67#include <cam/scsi/scsi_sa.h>
68
69#ifdef _KERNEL
70
71#include <opt_sa.h>
72
73#ifndef SA_IO_TIMEOUT
74#define SA_IO_TIMEOUT 32
75#endif
76#ifndef SA_SPACE_TIMEOUT
77#define SA_SPACE_TIMEOUT 1 * 60
78#endif
79#ifndef SA_REWIND_TIMEOUT
80#define SA_REWIND_TIMEOUT 2 * 60
81#endif
82#ifndef SA_ERASE_TIMEOUT
83#define SA_ERASE_TIMEOUT 4 * 60
84#endif
85#ifndef SA_REP_DENSITY_TIMEOUT
86#define SA_REP_DENSITY_TIMEOUT 90
87#endif
88
89#define SCSIOP_TIMEOUT (60 * 1000) /* not an option */
90
91#define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000)
92#define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000)
93#define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000)
94#define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000)
95#define REP_DENSITY_TIMEOUT (SA_REP_DENSITY_TIMEOUT * 60 * 1000)
96
97/*
98 * Additional options that can be set for config: SA_1FM_AT_EOT
99 */
100
101#ifndef UNUSED_PARAMETER
102#define UNUSED_PARAMETER(x) x = x
103#endif
104
105#define QFRLS(ccb) \
106 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \
107 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE)
108
109/*
110 * Driver states
111 */
112
113static MALLOC_DEFINE(M_SCSISA, "SCSI sa", "SCSI sequential access buffers");
114
115typedef enum {
116 SA_STATE_NORMAL, SA_STATE_ABNORMAL
117} sa_state;
118
119#define ccb_pflags ppriv_field0
120#define ccb_bp ppriv_ptr1
121
122/* bits in ccb_pflags */
123#define SA_POSITION_UPDATED 0x1
124
125
126typedef enum {
127 SA_FLAG_OPEN = 0x0001,
128 SA_FLAG_FIXED = 0x0002,
129 SA_FLAG_TAPE_LOCKED = 0x0004,
130 SA_FLAG_TAPE_MOUNTED = 0x0008,
131 SA_FLAG_TAPE_WP = 0x0010,
132 SA_FLAG_TAPE_WRITTEN = 0x0020,
133 SA_FLAG_EOM_PENDING = 0x0040,
134 SA_FLAG_EIO_PENDING = 0x0080,
135 SA_FLAG_EOF_PENDING = 0x0100,
136 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING|
137 SA_FLAG_EOF_PENDING),
138 SA_FLAG_INVALID = 0x0200,
139 SA_FLAG_COMP_ENABLED = 0x0400,
140 SA_FLAG_COMP_SUPP = 0x0800,
141 SA_FLAG_COMP_UNSUPP = 0x1000,
142 SA_FLAG_TAPE_FROZEN = 0x2000,
143 SA_FLAG_PROTECT_SUPP = 0x4000,
144
145 SA_FLAG_COMPRESSION = (SA_FLAG_COMP_SUPP|SA_FLAG_COMP_ENABLED|
146 SA_FLAG_COMP_UNSUPP),
147 SA_FLAG_SCTX_INIT = 0x8000
148} sa_flags;
149
150typedef enum {
151 SA_MODE_REWIND = 0x00,
152 SA_MODE_NOREWIND = 0x01,
153 SA_MODE_OFFLINE = 0x02
154} sa_mode;
155
156typedef enum {
157 SA_PARAM_NONE = 0x000,
158 SA_PARAM_BLOCKSIZE = 0x001,
159 SA_PARAM_DENSITY = 0x002,
160 SA_PARAM_COMPRESSION = 0x004,
161 SA_PARAM_BUFF_MODE = 0x008,
162 SA_PARAM_NUMBLOCKS = 0x010,
163 SA_PARAM_WP = 0x020,
164 SA_PARAM_SPEED = 0x040,
165 SA_PARAM_DENSITY_EXT = 0x080,
166 SA_PARAM_LBP = 0x100,
167 SA_PARAM_ALL = 0x1ff
168} sa_params;
169
170typedef enum {
171 SA_QUIRK_NONE = 0x000,
172 SA_QUIRK_NOCOMP = 0x001, /* Can't deal with compression at all*/
173 SA_QUIRK_FIXED = 0x002, /* Force fixed mode */
174 SA_QUIRK_VARIABLE = 0x004, /* Force variable mode */
175 SA_QUIRK_2FM = 0x008, /* Needs Two File Marks at EOD */
176 SA_QUIRK_1FM = 0x010, /* No more than 1 File Mark at EOD */
177 SA_QUIRK_NODREAD = 0x020, /* Don't try and dummy read density */
178 SA_QUIRK_NO_MODESEL = 0x040, /* Don't do mode select at all */
179 SA_QUIRK_NO_CPAGE = 0x080, /* Don't use DEVICE COMPRESSION page */
180 SA_QUIRK_NO_LONG_POS = 0x100 /* No long position information */
181} sa_quirks;
182
183#define SA_QUIRK_BIT_STRING \
184 "\020" \
185 "\001NOCOMP" \
186 "\002FIXED" \
187 "\003VARIABLE" \
188 "\0042FM" \
189 "\0051FM" \
190 "\006NODREAD" \
191 "\007NO_MODESEL" \
192 "\010NO_CPAGE" \
193 "\011NO_LONG_POS"
194
195#define SAMODE(z) (dev2unit(z) & 0x3)
196#define SA_IS_CTRL(z) (dev2unit(z) & (1 << 4))
197
198#define SA_NOT_CTLDEV 0
199#define SA_CTLDEV 1
200
201#define SA_ATYPE_R 0
202#define SA_ATYPE_NR 1
203#define SA_ATYPE_ER 2
204#define SA_NUM_ATYPES 3
205
206#define SAMINOR(ctl, access) \
207 ((ctl << 4) | (access & 0x3))
208
209struct sa_devs {
210 struct cdev *ctl_dev;
211 struct cdev *r_dev;
212 struct cdev *nr_dev;
213 struct cdev *er_dev;
214};
215
216#define SASBADDBASE(sb, indent, data, xfmt, name, type, xsize, desc) \
217 sbuf_printf(sb, "%*s<%s type=\"%s\" size=\"%zd\" " \
218 "fmt=\"%s\" desc=\"%s\">" #xfmt "</%s>\n", indent, "", \
219 #name, #type, xsize, #xfmt, desc ? desc : "", data, #name);
220
221#define SASBADDINT(sb, indent, data, fmt, name) \
222 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \
223 NULL)
224
225#define SASBADDINTDESC(sb, indent, data, fmt, name, desc) \
226 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \
227 desc)
228
229#define SASBADDUINT(sb, indent, data, fmt, name) \
230 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \
231 NULL)
232
233#define SASBADDUINTDESC(sb, indent, data, fmt, name, desc) \
234 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \
235 desc)
236
237#define SASBADDFIXEDSTR(sb, indent, data, fmt, name) \
238 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \
239 NULL)
240
241#define SASBADDFIXEDSTRDESC(sb, indent, data, fmt, name, desc) \
242 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \
243 desc)
244
245#define SASBADDVARSTR(sb, indent, data, fmt, name, maxlen) \
246 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, NULL)
247
248#define SASBADDVARSTRDESC(sb, indent, data, fmt, name, maxlen, desc) \
249 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, desc)
250
251#define SASBADDNODE(sb, indent, name) { \
252 sbuf_printf(sb, "%*s<%s type=\"%s\">\n", indent, "", #name, \
253 "node"); \
254 indent += 2; \
255}
256
257#define SASBADDNODENUM(sb, indent, name, num) { \
258 sbuf_printf(sb, "%*s<%s type=\"%s\" num=\"%d\">\n", indent, "", \
259 #name, "node", num); \
260 indent += 2; \
261}
262
263#define SASBENDNODE(sb, indent, name) { \
264 indent -= 2; \
265 sbuf_printf(sb, "%*s</%s>\n", indent, "", #name); \
266}
267
268#define SA_DENSITY_TYPES 4
269
270struct sa_prot_state {
271 int initialized;
272 uint32_t prot_method;
273 uint32_t pi_length;
274 uint32_t lbp_w;
275 uint32_t lbp_r;
276 uint32_t rbdp;
277};
278
279struct sa_prot_info {
280 struct sa_prot_state cur_prot_state;
281 struct sa_prot_state pending_prot_state;
282};
283
284/*
285 * A table mapping protection parameters to their types and values.
286 */
287struct sa_prot_map {
288 char *name;
289 mt_param_set_type param_type;
290 off_t offset;
291 uint32_t min_val;
292 uint32_t max_val;
293 uint32_t *value;
294} sa_prot_table[] = {
295 { "prot_method", MT_PARAM_SET_UNSIGNED,
296 __offsetof(struct sa_prot_state, prot_method),
297 /*min_val*/ 0, /*max_val*/ 255, NULL },
298 { "pi_length", MT_PARAM_SET_UNSIGNED,
299 __offsetof(struct sa_prot_state, pi_length),
300 /*min_val*/ 0, /*max_val*/ SA_CTRL_DP_PI_LENGTH_MASK, NULL },
301 { "lbp_w", MT_PARAM_SET_UNSIGNED,
302 __offsetof(struct sa_prot_state, lbp_w),
303 /*min_val*/ 0, /*max_val*/ 1, NULL },
304 { "lbp_r", MT_PARAM_SET_UNSIGNED,
305 __offsetof(struct sa_prot_state, lbp_r),
306 /*min_val*/ 0, /*max_val*/ 1, NULL },
307 { "rbdp", MT_PARAM_SET_UNSIGNED,
308 __offsetof(struct sa_prot_state, rbdp),
309 /*min_val*/ 0, /*max_val*/ 1, NULL }
310};
311
312#define SA_NUM_PROT_ENTS sizeof(sa_prot_table)/sizeof(sa_prot_table[0])
313
314#define SA_PROT_ENABLED(softc) ((softc->flags & SA_FLAG_PROTECT_SUPP) \
315 && (softc->prot_info.cur_prot_state.initialized != 0) \
316 && (softc->prot_info.cur_prot_state.prot_method != 0))
317
318#define SA_PROT_LEN(softc) softc->prot_info.cur_prot_state.pi_length
319
320struct sa_softc {
321 sa_state state;
322 sa_flags flags;
323 sa_quirks quirks;
324 u_int si_flags;
325 struct cam_periph *periph;
326 struct bio_queue_head bio_queue;
327 int queue_count;
328 struct devstat *device_stats;
329 struct sa_devs devs;
330 int open_count;
331 int num_devs_to_destroy;
332 int blk_gran;
333 int blk_mask;
334 int blk_shift;
335 u_int32_t max_blk;
336 u_int32_t min_blk;
337 u_int32_t maxio;
338 u_int32_t cpi_maxio;
339 int allow_io_split;
340 u_int32_t comp_algorithm;
341 u_int32_t saved_comp_algorithm;
342 u_int32_t media_blksize;
343 u_int32_t last_media_blksize;
344 u_int32_t media_numblks;
345 u_int8_t media_density;
346 u_int8_t speed;
347 u_int8_t scsi_rev;
348 u_int8_t dsreg; /* mtio mt_dsreg, redux */
349 int buffer_mode;
350 int filemarks;
351 union ccb saved_ccb;
352 int last_resid_was_io;
353 uint8_t density_type_bits[SA_DENSITY_TYPES];
354 int density_info_valid[SA_DENSITY_TYPES];
355 uint8_t density_info[SA_DENSITY_TYPES][SRDS_MAX_LENGTH];
356
357 struct sa_prot_info prot_info;
358
359 int sili;
360 int eot_warn;
361
362 /*
363 * Current position information. -1 means that the given value is
364 * unknown. fileno and blkno are always calculated. blkno is
365 * relative to the previous file mark. rep_fileno and rep_blkno
366 * are as reported by the drive, if it supports the long form
367 * report for the READ POSITION command. rep_blkno is relative to
368 * the beginning of the partition.
369 *
370 * bop means that the drive is at the beginning of the partition.
371 * eop means that the drive is between early warning and end of
372 * partition, inside the current partition.
373 * bpew means that the position is in a PEWZ (Programmable Early
374 * Warning Zone)
375 */
376 daddr_t partition; /* Absolute from BOT */
377 daddr_t fileno; /* Relative to beginning of partition */
378 daddr_t blkno; /* Relative to last file mark */
379 daddr_t rep_blkno; /* Relative to beginning of partition */
380 daddr_t rep_fileno; /* Relative to beginning of partition */
381 int bop; /* Beginning of Partition */
382 int eop; /* End of Partition */
383 int bpew; /* Beyond Programmable Early Warning */
384
385 /*
386 * Latched Error Info
387 */
388 struct {
389 struct scsi_sense_data _last_io_sense;
390 u_int64_t _last_io_resid;
391 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN];
392 struct scsi_sense_data _last_ctl_sense;
393 u_int64_t _last_ctl_resid;
394 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN];
395#define last_io_sense errinfo._last_io_sense
396#define last_io_resid errinfo._last_io_resid
397#define last_io_cdb errinfo._last_io_cdb
398#define last_ctl_sense errinfo._last_ctl_sense
399#define last_ctl_resid errinfo._last_ctl_resid
400#define last_ctl_cdb errinfo._last_ctl_cdb
401 } errinfo;
402 /*
403 * Misc other flags/state
404 */
405 u_int32_t
406 : 29,
407 open_rdonly : 1, /* open read-only */
408 open_pending_mount : 1, /* open pending mount */
409 ctrl_mode : 1; /* control device open */
410
411 struct task sysctl_task;
412 struct sysctl_ctx_list sysctl_ctx;
413 struct sysctl_oid *sysctl_tree;
414};
415
416struct sa_quirk_entry {
417 struct scsi_inquiry_pattern inq_pat; /* matching pattern */
418 sa_quirks quirks; /* specific quirk type */
419 u_int32_t prefblk; /* preferred blocksize when in fixed mode */
420};
421
422static struct sa_quirk_entry sa_quirk_table[] =
423{
424 {
425 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream",
426 "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD |
427 SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768
428 },
429 {
430 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
431 "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0
432 },
433 {
434 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
435 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
436 },
437 {
438 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
439 "Python*", "*"}, SA_QUIRK_NODREAD, 0
440 },
441 {
442 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
443 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
444 },
445 {
446 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
447 "VIPER 2525 25462", "-011"},
448 SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0
449 },
450 {
451 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
452 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
453 },
454#if 0
455 {
456 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
457 "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0,
458 },
459#endif
460 {
461 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
462 "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
463 },
464 {
465 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
466 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
467 },
468 {
469 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
470 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
471 },
472 {
473 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
474 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
475 },
476 {
477 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
478 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
479 },
480 {
481 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA",
482 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
483 },
484 { /* jreynold@primenet.com */
485 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
486 "STT8000N*", "*"}, SA_QUIRK_1FM, 0
487 },
488 { /* mike@sentex.net */
489 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
490 "STT20000*", "*"}, SA_QUIRK_1FM, 0
491 },
492 {
493 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "SEAGATE",
494 "DAT 06241-XXX", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
495 },
496 {
497 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
498 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
499 },
500 {
501 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
502 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
503 },
504 {
505 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
506 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
507 },
508 {
509 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
510 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
511 },
512 {
513 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
514 " SLR*", "*"}, SA_QUIRK_1FM, 0
515 },
516 {
517 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
518 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
519 },
520 {
521 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
522 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
523 }
524};
525
526static d_open_t saopen;
527static d_close_t saclose;
528static d_strategy_t sastrategy;
529static d_ioctl_t saioctl;
530static periph_init_t sainit;
531static periph_ctor_t saregister;
532static periph_oninv_t saoninvalidate;
533static periph_dtor_t sacleanup;
534static periph_start_t sastart;
535static void saasync(void *callback_arg, u_int32_t code,
536 struct cam_path *path, void *arg);
537static void sadone(struct cam_periph *periph,
538 union ccb *start_ccb);
539static int saerror(union ccb *ccb, u_int32_t cam_flags,
540 u_int32_t sense_flags);
541static int samarkswanted(struct cam_periph *);
542static int sacheckeod(struct cam_periph *periph);
543static int sagetparams(struct cam_periph *periph,
544 sa_params params_to_get,
545 u_int32_t *blocksize, u_int8_t *density,
546 u_int32_t *numblocks, int *buff_mode,
547 u_int8_t *write_protect, u_int8_t *speed,
548 int *comp_supported, int *comp_enabled,
549 u_int32_t *comp_algorithm,
550 sa_comp_t *comp_page,
551 struct scsi_control_data_prot_subpage
552 *prot_page, int dp_size,
553 int prot_changeable);
554static int sasetprot(struct cam_periph *periph,
555 struct sa_prot_state *new_prot);
556static int sasetparams(struct cam_periph *periph,
557 sa_params params_to_set,
558 u_int32_t blocksize, u_int8_t density,
559 u_int32_t comp_algorithm,
560 u_int32_t sense_flags);
561static int sasetsili(struct cam_periph *periph,
562 struct mtparamset *ps, int num_params);
563static int saseteotwarn(struct cam_periph *periph,
564 struct mtparamset *ps, int num_params);
565static void safillprot(struct sa_softc *softc, int *indent,
566 struct sbuf *sb);
567static void sapopulateprots(struct sa_prot_state *cur_state,
568 struct sa_prot_map *new_table,
569 int table_ents);
570static struct sa_prot_map *safindprotent(char *name, struct sa_prot_map *table,
571 int table_ents);
572static int sasetprotents(struct cam_periph *periph,
573 struct mtparamset *ps, int num_params);
574static struct sa_param_ent *safindparament(struct mtparamset *ps);
575static int saparamsetlist(struct cam_periph *periph,
576 struct mtsetlist *list, int need_copy);
577static int saextget(struct cdev *dev, struct cam_periph *periph,
578 struct sbuf *sb, struct mtextget *g);
579static int saparamget(struct sa_softc *softc, struct sbuf *sb);
580static void saprevent(struct cam_periph *periph, int action);
581static int sarewind(struct cam_periph *periph);
582static int saspace(struct cam_periph *periph, int count,
583 scsi_space_code code);
584static void sadevgonecb(void *arg);
585static void sasetupdev(struct sa_softc *softc, struct cdev *dev);
586static int samount(struct cam_periph *, int, struct cdev *);
587static int saretension(struct cam_periph *periph);
588static int sareservereleaseunit(struct cam_periph *periph,
589 int reserve);
590static int saloadunload(struct cam_periph *periph, int load);
591static int saerase(struct cam_periph *periph, int longerase);
592static int sawritefilemarks(struct cam_periph *periph,
593 int nmarks, int setmarks, int immed);
594static int sagetpos(struct cam_periph *periph);
595static int sardpos(struct cam_periph *periph, int, u_int32_t *);
596static int sasetpos(struct cam_periph *periph, int,
597 struct mtlocate *);
598static void safilldenstypesb(struct sbuf *sb, int *indent,
599 uint8_t *buf, int buf_len,
600 int is_density);
601static void safilldensitysb(struct sa_softc *softc, int *indent,
602 struct sbuf *sb);
603
604
605#ifndef SA_DEFAULT_IO_SPLIT
606#define SA_DEFAULT_IO_SPLIT 0
607#endif
608
609static int sa_allow_io_split = SA_DEFAULT_IO_SPLIT;
610
611/*
612 * Tunable to allow the user to set a global allow_io_split value. Note
613 * that this WILL GO AWAY in FreeBSD 11.0. Silently splitting the I/O up
614 * is bad behavior, because it hides the true tape block size from the
615 * application.
616 */
617static SYSCTL_NODE(_kern_cam, OID_AUTO, sa, CTLFLAG_RD, 0,
618 "CAM Sequential Access Tape Driver");
619SYSCTL_INT(_kern_cam_sa, OID_AUTO, allow_io_split, CTLFLAG_RDTUN,
620 &sa_allow_io_split, 0, "Default I/O split value");
621
622static struct periph_driver sadriver =
623{
624 sainit, "sa",
625 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0
626};
627
628PERIPHDRIVER_DECLARE(sa, sadriver);
629
630/* For 2.2-stable support */
631#ifndef D_TAPE
632#define D_TAPE 0
633#endif
634
635
636static struct cdevsw sa_cdevsw = {
637 .d_version = D_VERSION,
638 .d_open = saopen,
639 .d_close = saclose,
640 .d_read = physread,
641 .d_write = physwrite,
642 .d_ioctl = saioctl,
643 .d_strategy = sastrategy,
644 .d_name = "sa",
645 .d_flags = D_TAPE | D_TRACKCLOSE,
646};
647
648static int
649saopen(struct cdev *dev, int flags, int fmt, struct thread *td)
650{
651 struct cam_periph *periph;
652 struct sa_softc *softc;
653 int error;
654
655 periph = (struct cam_periph *)dev->si_drv1;
656 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
657 return (ENXIO);
658 }
659
660 cam_periph_lock(periph);
661
662 softc = (struct sa_softc *)periph->softc;
663
664 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
665 ("saopen(%s): softc=0x%x\n", devtoname(dev), softc->flags));
666
667 if (SA_IS_CTRL(dev)) {
668 softc->ctrl_mode = 1;
669 softc->open_count++;
670 cam_periph_unlock(periph);
671 return (0);
672 }
673
674 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
675 cam_periph_unlock(periph);
676 cam_periph_release(periph);
677 return (error);
678 }
679
680 if (softc->flags & SA_FLAG_OPEN) {
681 error = EBUSY;
682 } else if (softc->flags & SA_FLAG_INVALID) {
683 error = ENXIO;
684 } else {
685 /*
686 * Preserve whether this is a read_only open.
687 */
688 softc->open_rdonly = (flags & O_RDWR) == O_RDONLY;
689
690 /*
691 * The function samount ensures media is loaded and ready.
692 * It also does a device RESERVE if the tape isn't yet mounted.
693 *
694 * If the mount fails and this was a non-blocking open,
695 * make this a 'open_pending_mount' action.
696 */
697 error = samount(periph, flags, dev);
698 if (error && (flags & O_NONBLOCK)) {
699 softc->flags |= SA_FLAG_OPEN;
700 softc->open_pending_mount = 1;
701 softc->open_count++;
702 cam_periph_unhold(periph);
703 cam_periph_unlock(periph);
704 return (0);
705 }
706 }
707
708 if (error) {
709 cam_periph_unhold(periph);
710 cam_periph_unlock(periph);
711 cam_periph_release(periph);
712 return (error);
713 }
714
715 saprevent(periph, PR_PREVENT);
716 softc->flags |= SA_FLAG_OPEN;
717 softc->open_count++;
718
719 cam_periph_unhold(periph);
720 cam_periph_unlock(periph);
721 return (error);
722}
723
724static int
725saclose(struct cdev *dev, int flag, int fmt, struct thread *td)
726{
727 struct cam_periph *periph;
728 struct sa_softc *softc;
729 int mode, error, writing, tmp, i;
730 int closedbits = SA_FLAG_OPEN;
731
732 mode = SAMODE(dev);
733 periph = (struct cam_periph *)dev->si_drv1;
| 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>
40#include <sys/time.h>
41#include <sys/bio.h>
42#include <sys/limits.h>
43#include <sys/malloc.h>
44#include <sys/mtio.h>
45#ifdef _KERNEL
46#include <sys/conf.h>
47#include <sys/sbuf.h>
48#include <sys/sysctl.h>
49#include <sys/taskqueue.h>
50#endif
51#include <sys/fcntl.h>
52#include <sys/devicestat.h>
53
54#ifndef _KERNEL
55#include <stdio.h>
56#include <string.h>
57#endif
58
59#include <cam/cam.h>
60#include <cam/cam_ccb.h>
61#include <cam/cam_periph.h>
62#include <cam/cam_xpt_periph.h>
63#include <cam/cam_debug.h>
64
65#include <cam/scsi/scsi_all.h>
66#include <cam/scsi/scsi_message.h>
67#include <cam/scsi/scsi_sa.h>
68
69#ifdef _KERNEL
70
71#include <opt_sa.h>
72
73#ifndef SA_IO_TIMEOUT
74#define SA_IO_TIMEOUT 32
75#endif
76#ifndef SA_SPACE_TIMEOUT
77#define SA_SPACE_TIMEOUT 1 * 60
78#endif
79#ifndef SA_REWIND_TIMEOUT
80#define SA_REWIND_TIMEOUT 2 * 60
81#endif
82#ifndef SA_ERASE_TIMEOUT
83#define SA_ERASE_TIMEOUT 4 * 60
84#endif
85#ifndef SA_REP_DENSITY_TIMEOUT
86#define SA_REP_DENSITY_TIMEOUT 90
87#endif
88
89#define SCSIOP_TIMEOUT (60 * 1000) /* not an option */
90
91#define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000)
92#define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000)
93#define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000)
94#define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000)
95#define REP_DENSITY_TIMEOUT (SA_REP_DENSITY_TIMEOUT * 60 * 1000)
96
97/*
98 * Additional options that can be set for config: SA_1FM_AT_EOT
99 */
100
101#ifndef UNUSED_PARAMETER
102#define UNUSED_PARAMETER(x) x = x
103#endif
104
105#define QFRLS(ccb) \
106 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \
107 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE)
108
109/*
110 * Driver states
111 */
112
113static MALLOC_DEFINE(M_SCSISA, "SCSI sa", "SCSI sequential access buffers");
114
115typedef enum {
116 SA_STATE_NORMAL, SA_STATE_ABNORMAL
117} sa_state;
118
119#define ccb_pflags ppriv_field0
120#define ccb_bp ppriv_ptr1
121
122/* bits in ccb_pflags */
123#define SA_POSITION_UPDATED 0x1
124
125
126typedef enum {
127 SA_FLAG_OPEN = 0x0001,
128 SA_FLAG_FIXED = 0x0002,
129 SA_FLAG_TAPE_LOCKED = 0x0004,
130 SA_FLAG_TAPE_MOUNTED = 0x0008,
131 SA_FLAG_TAPE_WP = 0x0010,
132 SA_FLAG_TAPE_WRITTEN = 0x0020,
133 SA_FLAG_EOM_PENDING = 0x0040,
134 SA_FLAG_EIO_PENDING = 0x0080,
135 SA_FLAG_EOF_PENDING = 0x0100,
136 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING|
137 SA_FLAG_EOF_PENDING),
138 SA_FLAG_INVALID = 0x0200,
139 SA_FLAG_COMP_ENABLED = 0x0400,
140 SA_FLAG_COMP_SUPP = 0x0800,
141 SA_FLAG_COMP_UNSUPP = 0x1000,
142 SA_FLAG_TAPE_FROZEN = 0x2000,
143 SA_FLAG_PROTECT_SUPP = 0x4000,
144
145 SA_FLAG_COMPRESSION = (SA_FLAG_COMP_SUPP|SA_FLAG_COMP_ENABLED|
146 SA_FLAG_COMP_UNSUPP),
147 SA_FLAG_SCTX_INIT = 0x8000
148} sa_flags;
149
150typedef enum {
151 SA_MODE_REWIND = 0x00,
152 SA_MODE_NOREWIND = 0x01,
153 SA_MODE_OFFLINE = 0x02
154} sa_mode;
155
156typedef enum {
157 SA_PARAM_NONE = 0x000,
158 SA_PARAM_BLOCKSIZE = 0x001,
159 SA_PARAM_DENSITY = 0x002,
160 SA_PARAM_COMPRESSION = 0x004,
161 SA_PARAM_BUFF_MODE = 0x008,
162 SA_PARAM_NUMBLOCKS = 0x010,
163 SA_PARAM_WP = 0x020,
164 SA_PARAM_SPEED = 0x040,
165 SA_PARAM_DENSITY_EXT = 0x080,
166 SA_PARAM_LBP = 0x100,
167 SA_PARAM_ALL = 0x1ff
168} sa_params;
169
170typedef enum {
171 SA_QUIRK_NONE = 0x000,
172 SA_QUIRK_NOCOMP = 0x001, /* Can't deal with compression at all*/
173 SA_QUIRK_FIXED = 0x002, /* Force fixed mode */
174 SA_QUIRK_VARIABLE = 0x004, /* Force variable mode */
175 SA_QUIRK_2FM = 0x008, /* Needs Two File Marks at EOD */
176 SA_QUIRK_1FM = 0x010, /* No more than 1 File Mark at EOD */
177 SA_QUIRK_NODREAD = 0x020, /* Don't try and dummy read density */
178 SA_QUIRK_NO_MODESEL = 0x040, /* Don't do mode select at all */
179 SA_QUIRK_NO_CPAGE = 0x080, /* Don't use DEVICE COMPRESSION page */
180 SA_QUIRK_NO_LONG_POS = 0x100 /* No long position information */
181} sa_quirks;
182
183#define SA_QUIRK_BIT_STRING \
184 "\020" \
185 "\001NOCOMP" \
186 "\002FIXED" \
187 "\003VARIABLE" \
188 "\0042FM" \
189 "\0051FM" \
190 "\006NODREAD" \
191 "\007NO_MODESEL" \
192 "\010NO_CPAGE" \
193 "\011NO_LONG_POS"
194
195#define SAMODE(z) (dev2unit(z) & 0x3)
196#define SA_IS_CTRL(z) (dev2unit(z) & (1 << 4))
197
198#define SA_NOT_CTLDEV 0
199#define SA_CTLDEV 1
200
201#define SA_ATYPE_R 0
202#define SA_ATYPE_NR 1
203#define SA_ATYPE_ER 2
204#define SA_NUM_ATYPES 3
205
206#define SAMINOR(ctl, access) \
207 ((ctl << 4) | (access & 0x3))
208
209struct sa_devs {
210 struct cdev *ctl_dev;
211 struct cdev *r_dev;
212 struct cdev *nr_dev;
213 struct cdev *er_dev;
214};
215
216#define SASBADDBASE(sb, indent, data, xfmt, name, type, xsize, desc) \
217 sbuf_printf(sb, "%*s<%s type=\"%s\" size=\"%zd\" " \
218 "fmt=\"%s\" desc=\"%s\">" #xfmt "</%s>\n", indent, "", \
219 #name, #type, xsize, #xfmt, desc ? desc : "", data, #name);
220
221#define SASBADDINT(sb, indent, data, fmt, name) \
222 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \
223 NULL)
224
225#define SASBADDINTDESC(sb, indent, data, fmt, name, desc) \
226 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \
227 desc)
228
229#define SASBADDUINT(sb, indent, data, fmt, name) \
230 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \
231 NULL)
232
233#define SASBADDUINTDESC(sb, indent, data, fmt, name, desc) \
234 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \
235 desc)
236
237#define SASBADDFIXEDSTR(sb, indent, data, fmt, name) \
238 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \
239 NULL)
240
241#define SASBADDFIXEDSTRDESC(sb, indent, data, fmt, name, desc) \
242 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \
243 desc)
244
245#define SASBADDVARSTR(sb, indent, data, fmt, name, maxlen) \
246 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, NULL)
247
248#define SASBADDVARSTRDESC(sb, indent, data, fmt, name, maxlen, desc) \
249 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, desc)
250
251#define SASBADDNODE(sb, indent, name) { \
252 sbuf_printf(sb, "%*s<%s type=\"%s\">\n", indent, "", #name, \
253 "node"); \
254 indent += 2; \
255}
256
257#define SASBADDNODENUM(sb, indent, name, num) { \
258 sbuf_printf(sb, "%*s<%s type=\"%s\" num=\"%d\">\n", indent, "", \
259 #name, "node", num); \
260 indent += 2; \
261}
262
263#define SASBENDNODE(sb, indent, name) { \
264 indent -= 2; \
265 sbuf_printf(sb, "%*s</%s>\n", indent, "", #name); \
266}
267
268#define SA_DENSITY_TYPES 4
269
270struct sa_prot_state {
271 int initialized;
272 uint32_t prot_method;
273 uint32_t pi_length;
274 uint32_t lbp_w;
275 uint32_t lbp_r;
276 uint32_t rbdp;
277};
278
279struct sa_prot_info {
280 struct sa_prot_state cur_prot_state;
281 struct sa_prot_state pending_prot_state;
282};
283
284/*
285 * A table mapping protection parameters to their types and values.
286 */
287struct sa_prot_map {
288 char *name;
289 mt_param_set_type param_type;
290 off_t offset;
291 uint32_t min_val;
292 uint32_t max_val;
293 uint32_t *value;
294} sa_prot_table[] = {
295 { "prot_method", MT_PARAM_SET_UNSIGNED,
296 __offsetof(struct sa_prot_state, prot_method),
297 /*min_val*/ 0, /*max_val*/ 255, NULL },
298 { "pi_length", MT_PARAM_SET_UNSIGNED,
299 __offsetof(struct sa_prot_state, pi_length),
300 /*min_val*/ 0, /*max_val*/ SA_CTRL_DP_PI_LENGTH_MASK, NULL },
301 { "lbp_w", MT_PARAM_SET_UNSIGNED,
302 __offsetof(struct sa_prot_state, lbp_w),
303 /*min_val*/ 0, /*max_val*/ 1, NULL },
304 { "lbp_r", MT_PARAM_SET_UNSIGNED,
305 __offsetof(struct sa_prot_state, lbp_r),
306 /*min_val*/ 0, /*max_val*/ 1, NULL },
307 { "rbdp", MT_PARAM_SET_UNSIGNED,
308 __offsetof(struct sa_prot_state, rbdp),
309 /*min_val*/ 0, /*max_val*/ 1, NULL }
310};
311
312#define SA_NUM_PROT_ENTS sizeof(sa_prot_table)/sizeof(sa_prot_table[0])
313
314#define SA_PROT_ENABLED(softc) ((softc->flags & SA_FLAG_PROTECT_SUPP) \
315 && (softc->prot_info.cur_prot_state.initialized != 0) \
316 && (softc->prot_info.cur_prot_state.prot_method != 0))
317
318#define SA_PROT_LEN(softc) softc->prot_info.cur_prot_state.pi_length
319
320struct sa_softc {
321 sa_state state;
322 sa_flags flags;
323 sa_quirks quirks;
324 u_int si_flags;
325 struct cam_periph *periph;
326 struct bio_queue_head bio_queue;
327 int queue_count;
328 struct devstat *device_stats;
329 struct sa_devs devs;
330 int open_count;
331 int num_devs_to_destroy;
332 int blk_gran;
333 int blk_mask;
334 int blk_shift;
335 u_int32_t max_blk;
336 u_int32_t min_blk;
337 u_int32_t maxio;
338 u_int32_t cpi_maxio;
339 int allow_io_split;
340 u_int32_t comp_algorithm;
341 u_int32_t saved_comp_algorithm;
342 u_int32_t media_blksize;
343 u_int32_t last_media_blksize;
344 u_int32_t media_numblks;
345 u_int8_t media_density;
346 u_int8_t speed;
347 u_int8_t scsi_rev;
348 u_int8_t dsreg; /* mtio mt_dsreg, redux */
349 int buffer_mode;
350 int filemarks;
351 union ccb saved_ccb;
352 int last_resid_was_io;
353 uint8_t density_type_bits[SA_DENSITY_TYPES];
354 int density_info_valid[SA_DENSITY_TYPES];
355 uint8_t density_info[SA_DENSITY_TYPES][SRDS_MAX_LENGTH];
356
357 struct sa_prot_info prot_info;
358
359 int sili;
360 int eot_warn;
361
362 /*
363 * Current position information. -1 means that the given value is
364 * unknown. fileno and blkno are always calculated. blkno is
365 * relative to the previous file mark. rep_fileno and rep_blkno
366 * are as reported by the drive, if it supports the long form
367 * report for the READ POSITION command. rep_blkno is relative to
368 * the beginning of the partition.
369 *
370 * bop means that the drive is at the beginning of the partition.
371 * eop means that the drive is between early warning and end of
372 * partition, inside the current partition.
373 * bpew means that the position is in a PEWZ (Programmable Early
374 * Warning Zone)
375 */
376 daddr_t partition; /* Absolute from BOT */
377 daddr_t fileno; /* Relative to beginning of partition */
378 daddr_t blkno; /* Relative to last file mark */
379 daddr_t rep_blkno; /* Relative to beginning of partition */
380 daddr_t rep_fileno; /* Relative to beginning of partition */
381 int bop; /* Beginning of Partition */
382 int eop; /* End of Partition */
383 int bpew; /* Beyond Programmable Early Warning */
384
385 /*
386 * Latched Error Info
387 */
388 struct {
389 struct scsi_sense_data _last_io_sense;
390 u_int64_t _last_io_resid;
391 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN];
392 struct scsi_sense_data _last_ctl_sense;
393 u_int64_t _last_ctl_resid;
394 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN];
395#define last_io_sense errinfo._last_io_sense
396#define last_io_resid errinfo._last_io_resid
397#define last_io_cdb errinfo._last_io_cdb
398#define last_ctl_sense errinfo._last_ctl_sense
399#define last_ctl_resid errinfo._last_ctl_resid
400#define last_ctl_cdb errinfo._last_ctl_cdb
401 } errinfo;
402 /*
403 * Misc other flags/state
404 */
405 u_int32_t
406 : 29,
407 open_rdonly : 1, /* open read-only */
408 open_pending_mount : 1, /* open pending mount */
409 ctrl_mode : 1; /* control device open */
410
411 struct task sysctl_task;
412 struct sysctl_ctx_list sysctl_ctx;
413 struct sysctl_oid *sysctl_tree;
414};
415
416struct sa_quirk_entry {
417 struct scsi_inquiry_pattern inq_pat; /* matching pattern */
418 sa_quirks quirks; /* specific quirk type */
419 u_int32_t prefblk; /* preferred blocksize when in fixed mode */
420};
421
422static struct sa_quirk_entry sa_quirk_table[] =
423{
424 {
425 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream",
426 "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD |
427 SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768
428 },
429 {
430 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
431 "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0
432 },
433 {
434 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
435 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
436 },
437 {
438 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
439 "Python*", "*"}, SA_QUIRK_NODREAD, 0
440 },
441 {
442 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
443 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
444 },
445 {
446 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
447 "VIPER 2525 25462", "-011"},
448 SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0
449 },
450 {
451 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
452 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
453 },
454#if 0
455 {
456 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
457 "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0,
458 },
459#endif
460 {
461 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
462 "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
463 },
464 {
465 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
466 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
467 },
468 {
469 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
470 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
471 },
472 {
473 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
474 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
475 },
476 {
477 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
478 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
479 },
480 {
481 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA",
482 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
483 },
484 { /* jreynold@primenet.com */
485 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
486 "STT8000N*", "*"}, SA_QUIRK_1FM, 0
487 },
488 { /* mike@sentex.net */
489 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
490 "STT20000*", "*"}, SA_QUIRK_1FM, 0
491 },
492 {
493 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "SEAGATE",
494 "DAT 06241-XXX", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
495 },
496 {
497 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
498 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
499 },
500 {
501 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
502 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
503 },
504 {
505 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
506 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
507 },
508 {
509 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
510 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
511 },
512 {
513 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
514 " SLR*", "*"}, SA_QUIRK_1FM, 0
515 },
516 {
517 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
518 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
519 },
520 {
521 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
522 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
523 }
524};
525
526static d_open_t saopen;
527static d_close_t saclose;
528static d_strategy_t sastrategy;
529static d_ioctl_t saioctl;
530static periph_init_t sainit;
531static periph_ctor_t saregister;
532static periph_oninv_t saoninvalidate;
533static periph_dtor_t sacleanup;
534static periph_start_t sastart;
535static void saasync(void *callback_arg, u_int32_t code,
536 struct cam_path *path, void *arg);
537static void sadone(struct cam_periph *periph,
538 union ccb *start_ccb);
539static int saerror(union ccb *ccb, u_int32_t cam_flags,
540 u_int32_t sense_flags);
541static int samarkswanted(struct cam_periph *);
542static int sacheckeod(struct cam_periph *periph);
543static int sagetparams(struct cam_periph *periph,
544 sa_params params_to_get,
545 u_int32_t *blocksize, u_int8_t *density,
546 u_int32_t *numblocks, int *buff_mode,
547 u_int8_t *write_protect, u_int8_t *speed,
548 int *comp_supported, int *comp_enabled,
549 u_int32_t *comp_algorithm,
550 sa_comp_t *comp_page,
551 struct scsi_control_data_prot_subpage
552 *prot_page, int dp_size,
553 int prot_changeable);
554static int sasetprot(struct cam_periph *periph,
555 struct sa_prot_state *new_prot);
556static int sasetparams(struct cam_periph *periph,
557 sa_params params_to_set,
558 u_int32_t blocksize, u_int8_t density,
559 u_int32_t comp_algorithm,
560 u_int32_t sense_flags);
561static int sasetsili(struct cam_periph *periph,
562 struct mtparamset *ps, int num_params);
563static int saseteotwarn(struct cam_periph *periph,
564 struct mtparamset *ps, int num_params);
565static void safillprot(struct sa_softc *softc, int *indent,
566 struct sbuf *sb);
567static void sapopulateprots(struct sa_prot_state *cur_state,
568 struct sa_prot_map *new_table,
569 int table_ents);
570static struct sa_prot_map *safindprotent(char *name, struct sa_prot_map *table,
571 int table_ents);
572static int sasetprotents(struct cam_periph *periph,
573 struct mtparamset *ps, int num_params);
574static struct sa_param_ent *safindparament(struct mtparamset *ps);
575static int saparamsetlist(struct cam_periph *periph,
576 struct mtsetlist *list, int need_copy);
577static int saextget(struct cdev *dev, struct cam_periph *periph,
578 struct sbuf *sb, struct mtextget *g);
579static int saparamget(struct sa_softc *softc, struct sbuf *sb);
580static void saprevent(struct cam_periph *periph, int action);
581static int sarewind(struct cam_periph *periph);
582static int saspace(struct cam_periph *periph, int count,
583 scsi_space_code code);
584static void sadevgonecb(void *arg);
585static void sasetupdev(struct sa_softc *softc, struct cdev *dev);
586static int samount(struct cam_periph *, int, struct cdev *);
587static int saretension(struct cam_periph *periph);
588static int sareservereleaseunit(struct cam_periph *periph,
589 int reserve);
590static int saloadunload(struct cam_periph *periph, int load);
591static int saerase(struct cam_periph *periph, int longerase);
592static int sawritefilemarks(struct cam_periph *periph,
593 int nmarks, int setmarks, int immed);
594static int sagetpos(struct cam_periph *periph);
595static int sardpos(struct cam_periph *periph, int, u_int32_t *);
596static int sasetpos(struct cam_periph *periph, int,
597 struct mtlocate *);
598static void safilldenstypesb(struct sbuf *sb, int *indent,
599 uint8_t *buf, int buf_len,
600 int is_density);
601static void safilldensitysb(struct sa_softc *softc, int *indent,
602 struct sbuf *sb);
603
604
605#ifndef SA_DEFAULT_IO_SPLIT
606#define SA_DEFAULT_IO_SPLIT 0
607#endif
608
609static int sa_allow_io_split = SA_DEFAULT_IO_SPLIT;
610
611/*
612 * Tunable to allow the user to set a global allow_io_split value. Note
613 * that this WILL GO AWAY in FreeBSD 11.0. Silently splitting the I/O up
614 * is bad behavior, because it hides the true tape block size from the
615 * application.
616 */
617static SYSCTL_NODE(_kern_cam, OID_AUTO, sa, CTLFLAG_RD, 0,
618 "CAM Sequential Access Tape Driver");
619SYSCTL_INT(_kern_cam_sa, OID_AUTO, allow_io_split, CTLFLAG_RDTUN,
620 &sa_allow_io_split, 0, "Default I/O split value");
621
622static struct periph_driver sadriver =
623{
624 sainit, "sa",
625 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0
626};
627
628PERIPHDRIVER_DECLARE(sa, sadriver);
629
630/* For 2.2-stable support */
631#ifndef D_TAPE
632#define D_TAPE 0
633#endif
634
635
636static struct cdevsw sa_cdevsw = {
637 .d_version = D_VERSION,
638 .d_open = saopen,
639 .d_close = saclose,
640 .d_read = physread,
641 .d_write = physwrite,
642 .d_ioctl = saioctl,
643 .d_strategy = sastrategy,
644 .d_name = "sa",
645 .d_flags = D_TAPE | D_TRACKCLOSE,
646};
647
648static int
649saopen(struct cdev *dev, int flags, int fmt, struct thread *td)
650{
651 struct cam_periph *periph;
652 struct sa_softc *softc;
653 int error;
654
655 periph = (struct cam_periph *)dev->si_drv1;
656 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
657 return (ENXIO);
658 }
659
660 cam_periph_lock(periph);
661
662 softc = (struct sa_softc *)periph->softc;
663
664 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
665 ("saopen(%s): softc=0x%x\n", devtoname(dev), softc->flags));
666
667 if (SA_IS_CTRL(dev)) {
668 softc->ctrl_mode = 1;
669 softc->open_count++;
670 cam_periph_unlock(periph);
671 return (0);
672 }
673
674 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
675 cam_periph_unlock(periph);
676 cam_periph_release(periph);
677 return (error);
678 }
679
680 if (softc->flags & SA_FLAG_OPEN) {
681 error = EBUSY;
682 } else if (softc->flags & SA_FLAG_INVALID) {
683 error = ENXIO;
684 } else {
685 /*
686 * Preserve whether this is a read_only open.
687 */
688 softc->open_rdonly = (flags & O_RDWR) == O_RDONLY;
689
690 /*
691 * The function samount ensures media is loaded and ready.
692 * It also does a device RESERVE if the tape isn't yet mounted.
693 *
694 * If the mount fails and this was a non-blocking open,
695 * make this a 'open_pending_mount' action.
696 */
697 error = samount(periph, flags, dev);
698 if (error && (flags & O_NONBLOCK)) {
699 softc->flags |= SA_FLAG_OPEN;
700 softc->open_pending_mount = 1;
701 softc->open_count++;
702 cam_periph_unhold(periph);
703 cam_periph_unlock(periph);
704 return (0);
705 }
706 }
707
708 if (error) {
709 cam_periph_unhold(periph);
710 cam_periph_unlock(periph);
711 cam_periph_release(periph);
712 return (error);
713 }
714
715 saprevent(periph, PR_PREVENT);
716 softc->flags |= SA_FLAG_OPEN;
717 softc->open_count++;
718
719 cam_periph_unhold(periph);
720 cam_periph_unlock(periph);
721 return (error);
722}
723
724static int
725saclose(struct cdev *dev, int flag, int fmt, struct thread *td)
726{
727 struct cam_periph *periph;
728 struct sa_softc *softc;
729 int mode, error, writing, tmp, i;
730 int closedbits = SA_FLAG_OPEN;
731
732 mode = SAMODE(dev);
733 periph = (struct cam_periph *)dev->si_drv1;
|
2528
2529 cam_periph_lock(periph);
2530
2531 softc->density_type_bits[0] = 0;
2532 softc->density_type_bits[1] = SRDS_MEDIA;
2533 softc->density_type_bits[2] = SRDS_MEDIUM_TYPE;
2534 softc->density_type_bits[3] = SRDS_MEDIUM_TYPE | SRDS_MEDIA;
2535 /*
2536 * Bump the peripheral refcount for the sysctl thread, in case we
2537 * get invalidated before the thread has a chance to run.
2538 */
2539 cam_periph_acquire(periph);
2540 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task);
2541
2542 /*
2543 * Add an async callback so that we get
2544 * notified if this device goes away.
2545 */
2546 xpt_register_async(AC_LOST_DEVICE, saasync, periph, periph->path);
2547
2548 xpt_announce_periph(periph, NULL);
2549 xpt_announce_quirks(periph, softc->quirks, SA_QUIRK_BIT_STRING);
2550
2551 return (CAM_REQ_CMP);
2552}
2553
2554static void
2555sastart(struct cam_periph *periph, union ccb *start_ccb)
2556{
2557 struct sa_softc *softc;
2558
2559 softc = (struct sa_softc *)periph->softc;
2560
2561 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n"));
2562
2563
2564 switch (softc->state) {
2565 case SA_STATE_NORMAL:
2566 {
2567 /* Pull a buffer from the queue and get going on it */
2568 struct bio *bp;
2569
2570 /*
2571 * See if there is a buf with work for us to do..
2572 */
2573 bp = bioq_first(&softc->bio_queue);
2574 if (bp == NULL) {
2575 xpt_release_ccb(start_ccb);
2576 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) {
2577 struct bio *done_bp;
2578again:
2579 softc->queue_count--;
2580 bioq_remove(&softc->bio_queue, bp);
2581 bp->bio_resid = bp->bio_bcount;
2582 done_bp = bp;
2583 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) {
2584 /*
2585 * We have two different behaviors for
2586 * writes when we hit either Early Warning
2587 * or the PEWZ (Programmable Early Warning
2588 * Zone). The default behavior is that
2589 * for all writes that are currently
2590 * queued after the write where we saw the
2591 * early warning, we will return the write
2592 * with the residual equal to the count.
2593 * i.e. tell the application that 0 bytes
2594 * were written.
2595 *
2596 * The alternate behavior, which is enabled
2597 * when eot_warn is set, is that in
2598 * addition to setting the residual equal
2599 * to the count, we will set the error
2600 * to ENOSPC.
2601 *
2602 * In either case, once queued writes are
2603 * cleared out, we clear the error flag
2604 * (see below) and the application is free to
2605 * attempt to write more.
2606 */
2607 if (softc->eot_warn != 0) {
2608 bp->bio_flags |= BIO_ERROR;
2609 bp->bio_error = ENOSPC;
2610 } else
2611 bp->bio_error = 0;
2612 } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) {
2613 /*
2614 * This can only happen if we're reading
2615 * in fixed length mode. In this case,
2616 * we dump the rest of the list the
2617 * same way.
2618 */
2619 bp->bio_error = 0;
2620 if (bioq_first(&softc->bio_queue) != NULL) {
2621 biodone(done_bp);
2622 goto again;
2623 }
2624 } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) {
2625 bp->bio_error = EIO;
2626 bp->bio_flags |= BIO_ERROR;
2627 }
2628 bp = bioq_first(&softc->bio_queue);
2629 /*
2630 * Only if we have no other buffers queued up
2631 * do we clear the pending error flag.
2632 */
2633 if (bp == NULL)
2634 softc->flags &= ~SA_FLAG_ERR_PENDING;
2635 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
2636 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, "
2637 "%d more buffers queued up\n",
2638 (softc->flags & SA_FLAG_ERR_PENDING),
2639 (bp != NULL)? "not " : " ", softc->queue_count));
2640 xpt_release_ccb(start_ccb);
2641 biodone(done_bp);
2642 } else {
2643 u_int32_t length;
2644
2645 bioq_remove(&softc->bio_queue, bp);
2646 softc->queue_count--;
2647
2648 length = bp->bio_bcount;
2649
2650 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2651 if (softc->blk_shift != 0) {
2652 length = length >> softc->blk_shift;
2653 } else if (softc->media_blksize != 0) {
2654 length = length / softc->media_blksize;
2655 } else {
2656 bp->bio_error = EIO;
2657 xpt_print(periph->path, "zero blocksize"
2658 " for FIXED length writes?\n");
2659 biodone(bp);
2660 break;
2661 }
2662#if 0
2663 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
2664 ("issuing a %d fixed record %s\n",
2665 length, (bp->bio_cmd == BIO_READ)? "read" :
2666 "write"));
2667#endif
2668 } else {
2669#if 0
2670 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
2671 ("issuing a %d variable byte %s\n",
2672 length, (bp->bio_cmd == BIO_READ)? "read" :
2673 "write"));
2674#endif
2675 }
2676 devstat_start_transaction_bio(softc->device_stats, bp);
2677 /*
2678 * Some people have theorized that we should
2679 * suppress illegal length indication if we are
2680 * running in variable block mode so that we don't
2681 * have to request sense every time our requested
2682 * block size is larger than the written block.
2683 * The residual information from the ccb allows
2684 * us to identify this situation anyway. The only
2685 * problem with this is that we will not get
2686 * information about blocks that are larger than
2687 * our read buffer unless we set the block size
2688 * in the mode page to something other than 0.
2689 *
2690 * I believe that this is a non-issue. If user apps
2691 * don't adjust their read size to match our record
2692 * size, that's just life. Anyway, the typical usage
2693 * would be to issue, e.g., 64KB reads and occasionally
2694 * have to do deal with 512 byte or 1KB intermediate
2695 * records.
2696 *
2697 * That said, though, we now support setting the
2698 * SILI bit on reads, and we set the blocksize to 4
2699 * bytes when we do that. This gives us
2700 * compatibility with software that wants this,
2701 * although the only real difference between that
2702 * and not setting the SILI bit on reads is that we
2703 * won't get a check condition on reads where our
2704 * request size is larger than the block on tape.
2705 * That probably only makes a real difference in
2706 * non-packetized SCSI, where you have to go back
2707 * to the drive to request sense and thus incur
2708 * more latency.
2709 */
2710 softc->dsreg = (bp->bio_cmd == BIO_READ)?
2711 MTIO_DSREG_RD : MTIO_DSREG_WR;
2712 scsi_sa_read_write(&start_ccb->csio, 0, sadone,
2713 MSG_SIMPLE_Q_TAG, (bp->bio_cmd == BIO_READ ?
2714 SCSI_RW_READ : SCSI_RW_WRITE) |
2715 ((bp->bio_flags & BIO_UNMAPPED) != 0 ?
2716 SCSI_RW_BIO : 0), softc->sili,
2717 (softc->flags & SA_FLAG_FIXED) != 0, length,
2718 (bp->bio_flags & BIO_UNMAPPED) != 0 ? (void *)bp :
2719 bp->bio_data, bp->bio_bcount, SSD_FULL_SIZE,
2720 IO_TIMEOUT);
2721 start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED;
2722 start_ccb->ccb_h.ccb_bp = bp;
2723 bp = bioq_first(&softc->bio_queue);
2724 xpt_action(start_ccb);
2725 }
2726
2727 if (bp != NULL) {
2728 /* Have more work to do, so ensure we stay scheduled */
2729 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
2730 }
2731 break;
2732 }
2733 case SA_STATE_ABNORMAL:
2734 default:
2735 panic("state 0x%x in sastart", softc->state);
2736 break;
2737 }
2738}
2739
2740
2741static void
2742sadone(struct cam_periph *periph, union ccb *done_ccb)
2743{
2744 struct sa_softc *softc;
2745 struct ccb_scsiio *csio;
2746 struct bio *bp;
2747 int error;
2748
2749 softc = (struct sa_softc *)periph->softc;
2750 csio = &done_ccb->csio;
2751
2752 softc->dsreg = MTIO_DSREG_REST;
2753 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2754 error = 0;
2755 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2756 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) {
2757 /*
2758 * A retry was scheduled, so just return.
2759 */
2760 return;
2761 }
2762 }
2763
2764 if (error == EIO) {
2765
2766 /*
2767 * Catastrophic error. Mark the tape as frozen
2768 * (we no longer know tape position).
2769 *
2770 * Return all queued I/O with EIO, and unfreeze
2771 * our queue so that future transactions that
2772 * attempt to fix this problem can get to the
2773 * device.
2774 *
2775 */
2776
2777 softc->flags |= SA_FLAG_TAPE_FROZEN;
2778 bioq_flush(&softc->bio_queue, NULL, EIO);
2779 }
2780 if (error != 0) {
2781 bp->bio_resid = bp->bio_bcount;
2782 bp->bio_error = error;
2783 bp->bio_flags |= BIO_ERROR;
2784 /*
2785 * In the error case, position is updated in saerror.
2786 */
2787 } else {
2788 bp->bio_resid = csio->resid;
2789 bp->bio_error = 0;
2790 if (csio->resid != 0) {
2791 bp->bio_flags |= BIO_ERROR;
2792 }
2793 if (bp->bio_cmd == BIO_WRITE) {
2794 softc->flags |= SA_FLAG_TAPE_WRITTEN;
2795 softc->filemarks = 0;
2796 }
2797 if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) &&
2798 (softc->blkno != (daddr_t) -1)) {
2799 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2800 u_int32_t l;
2801 if (softc->blk_shift != 0) {
2802 l = bp->bio_bcount >>
2803 softc->blk_shift;
2804 } else {
2805 l = bp->bio_bcount /
2806 softc->media_blksize;
2807 }
2808 softc->blkno += (daddr_t) l;
2809 } else {
2810 softc->blkno++;
2811 }
2812 }
2813 }
2814 /*
2815 * If we had an error (immediate or pending),
2816 * release the device queue now.
2817 */
2818 if (error || (softc->flags & SA_FLAG_ERR_PENDING))
2819 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0);
2820 if (error || bp->bio_resid) {
2821 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
2822 ("error %d resid %ld count %ld\n", error,
2823 bp->bio_resid, bp->bio_bcount));
2824 }
2825 biofinish(bp, softc->device_stats, 0);
2826 xpt_release_ccb(done_ccb);
2827}
2828
2829/*
2830 * Mount the tape (make sure it's ready for I/O).
2831 */
2832static int
2833samount(struct cam_periph *periph, int oflags, struct cdev *dev)
2834{
2835 struct sa_softc *softc;
2836 union ccb *ccb;
2837 int error;
2838
2839 /*
2840 * oflags can be checked for 'kind' of open (read-only check) - later
2841 * dev can be checked for a control-mode or compression open - later
2842 */
2843 UNUSED_PARAMETER(oflags);
2844 UNUSED_PARAMETER(dev);
2845
2846
2847 softc = (struct sa_softc *)periph->softc;
2848
2849 /*
2850 * This should determine if something has happend since the last
2851 * open/mount that would invalidate the mount. We do *not* want
2852 * to retry this command- we just want the status. But we only
2853 * do this if we're mounted already- if we're not mounted,
2854 * we don't care about the unit read state and can instead use
2855 * this opportunity to attempt to reserve the tape unit.
2856 */
2857
2858 if (softc->flags & SA_FLAG_TAPE_MOUNTED) {
2859 ccb = cam_periph_getccb(periph, 1);
2860 scsi_test_unit_ready(&ccb->csio, 0, sadone,
2861 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
2862 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2863 softc->device_stats);
2864 if (error == ENXIO) {
2865 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
2866 scsi_test_unit_ready(&ccb->csio, 0, sadone,
2867 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
2868 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2869 softc->device_stats);
2870 } else if (error) {
2871 /*
2872 * We don't need to freeze the tape because we
2873 * will now attempt to rewind/load it.
2874 */
2875 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
2876 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2877 xpt_print(periph->path,
2878 "error %d on TUR in samount\n", error);
2879 }
2880 }
2881 } else {
2882 error = sareservereleaseunit(periph, TRUE);
2883 if (error) {
2884 return (error);
2885 }
2886 ccb = cam_periph_getccb(periph, 1);
2887 scsi_test_unit_ready(&ccb->csio, 0, sadone,
2888 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
2889 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2890 softc->device_stats);
2891 }
2892
2893 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
2894 struct scsi_read_block_limits_data *rblim = NULL;
2895 int comp_enabled, comp_supported;
2896 u_int8_t write_protect, guessing = 0;
2897
2898 /*
2899 * Clear out old state.
2900 */
2901 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN|
2902 SA_FLAG_ERR_PENDING|SA_FLAG_COMPRESSION);
2903 softc->filemarks = 0;
2904
2905 /*
2906 * *Very* first off, make sure we're loaded to BOT.
2907 */
2908 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2909 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT);
2910 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2911 softc->device_stats);
2912
2913 /*
2914 * In case this doesn't work, do a REWIND instead
2915 */
2916 if (error) {
2917 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
2918 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
2919 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2920 softc->device_stats);
2921 }
2922 if (error) {
2923 xpt_release_ccb(ccb);
2924 goto exit;
2925 }
2926
2927 /*
2928 * Do a dummy test read to force access to the
2929 * media so that the drive will really know what's
2930 * there. We actually don't really care what the
2931 * blocksize on tape is and don't expect to really
2932 * read a full record.
2933 */
2934 rblim = (struct scsi_read_block_limits_data *)
2935 malloc(8192, M_SCSISA, M_NOWAIT);
2936 if (rblim == NULL) {
2937 xpt_print(periph->path, "no memory for test read\n");
2938 xpt_release_ccb(ccb);
2939 error = ENOMEM;
2940 goto exit;
2941 }
2942
2943 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
2944 scsi_sa_read_write(&ccb->csio, 0, sadone,
2945 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
2946 (void *) rblim, 8192, SSD_FULL_SIZE,
2947 IO_TIMEOUT);
2948 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2949 softc->device_stats);
2950 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
2951 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
2952 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
2953 SF_NO_PRINT | SF_RETRY_UA,
2954 softc->device_stats);
2955 if (error) {
2956 xpt_print(periph->path,
2957 "unable to rewind after test read\n");
2958 xpt_release_ccb(ccb);
2959 goto exit;
2960 }
2961 }
2962
2963 /*
2964 * Next off, determine block limits.
2965 */
2966 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
2967 rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
2968
2969 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
2970 SF_NO_PRINT | SF_RETRY_UA, softc->device_stats);
2971
2972 xpt_release_ccb(ccb);
2973
2974 if (error != 0) {
2975 /*
2976 * If it's less than SCSI-2, READ BLOCK LIMITS is not
2977 * a MANDATORY command. Anyway- it doesn't matter-
2978 * we can proceed anyway.
2979 */
2980 softc->blk_gran = 0;
2981 softc->max_blk = ~0;
2982 softc->min_blk = 0;
2983 } else {
2984 if (softc->scsi_rev >= SCSI_REV_SPC) {
2985 softc->blk_gran = RBL_GRAN(rblim);
2986 } else {
2987 softc->blk_gran = 0;
2988 }
2989 /*
2990 * We take max_blk == min_blk to mean a default to
2991 * fixed mode- but note that whatever we get out of
2992 * sagetparams below will actually determine whether
2993 * we are actually *in* fixed mode.
2994 */
2995 softc->max_blk = scsi_3btoul(rblim->maximum);
2996 softc->min_blk = scsi_2btoul(rblim->minimum);
2997
2998
2999 }
3000 /*
3001 * Next, perform a mode sense to determine
3002 * current density, blocksize, compression etc.
3003 */
3004 error = sagetparams(periph, SA_PARAM_ALL,
3005 &softc->media_blksize,
3006 &softc->media_density,
3007 &softc->media_numblks,
3008 &softc->buffer_mode, &write_protect,
3009 &softc->speed, &comp_supported,
3010 &comp_enabled, &softc->comp_algorithm,
3011 NULL, NULL, 0, 0);
3012
3013 if (error != 0) {
3014 /*
3015 * We could work a little harder here. We could
3016 * adjust our attempts to get information. It
3017 * might be an ancient tape drive. If someone
3018 * nudges us, we'll do that.
3019 */
3020 goto exit;
3021 }
3022
3023 /*
3024 * If no quirk has determined that this is a device that is
3025 * preferred to be in fixed or variable mode, now is the time
3026 * to find out.
3027 */
3028 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) {
3029 guessing = 1;
3030 /*
3031 * This could be expensive to find out. Luckily we
3032 * only need to do this once. If we start out in
3033 * 'default' mode, try and set ourselves to one
3034 * of the densities that would determine a wad
3035 * of other stuff. Go from highest to lowest.
3036 */
3037 if (softc->media_density == SCSI_DEFAULT_DENSITY) {
3038 int i;
3039 static u_int8_t ctry[] = {
3040 SCSI_DENSITY_HALFINCH_PE,
3041 SCSI_DENSITY_HALFINCH_6250C,
3042 SCSI_DENSITY_HALFINCH_6250,
3043 SCSI_DENSITY_HALFINCH_1600,
3044 SCSI_DENSITY_HALFINCH_800,
3045 SCSI_DENSITY_QIC_4GB,
3046 SCSI_DENSITY_QIC_2GB,
3047 SCSI_DENSITY_QIC_525_320,
3048 SCSI_DENSITY_QIC_150,
3049 SCSI_DENSITY_QIC_120,
3050 SCSI_DENSITY_QIC_24,
3051 SCSI_DENSITY_QIC_11_9TRK,
3052 SCSI_DENSITY_QIC_11_4TRK,
3053 SCSI_DENSITY_QIC_1320,
3054 SCSI_DENSITY_QIC_3080,
3055 0
3056 };
3057 for (i = 0; ctry[i]; i++) {
3058 error = sasetparams(periph,
3059 SA_PARAM_DENSITY, 0, ctry[i],
3060 0, SF_NO_PRINT);
3061 if (error == 0) {
3062 softc->media_density = ctry[i];
3063 break;
3064 }
3065 }
3066 }
3067 switch (softc->media_density) {
3068 case SCSI_DENSITY_QIC_11_4TRK:
3069 case SCSI_DENSITY_QIC_11_9TRK:
3070 case SCSI_DENSITY_QIC_24:
3071 case SCSI_DENSITY_QIC_120:
3072 case SCSI_DENSITY_QIC_150:
3073 case SCSI_DENSITY_QIC_525_320:
3074 case SCSI_DENSITY_QIC_1320:
3075 case SCSI_DENSITY_QIC_3080:
3076 softc->quirks &= ~SA_QUIRK_2FM;
3077 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
3078 softc->last_media_blksize = 512;
3079 break;
3080 case SCSI_DENSITY_QIC_4GB:
3081 case SCSI_DENSITY_QIC_2GB:
3082 softc->quirks &= ~SA_QUIRK_2FM;
3083 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
3084 softc->last_media_blksize = 1024;
3085 break;
3086 default:
3087 softc->last_media_blksize =
3088 softc->media_blksize;
3089 softc->quirks |= SA_QUIRK_VARIABLE;
3090 break;
3091 }
3092 }
3093
3094 /*
3095 * If no quirk has determined that this is a device that needs
3096 * to have 2 Filemarks at EOD, now is the time to find out.
3097 */
3098
3099 if ((softc->quirks & SA_QUIRK_2FM) == 0) {
3100 switch (softc->media_density) {
3101 case SCSI_DENSITY_HALFINCH_800:
3102 case SCSI_DENSITY_HALFINCH_1600:
3103 case SCSI_DENSITY_HALFINCH_6250:
3104 case SCSI_DENSITY_HALFINCH_6250C:
3105 case SCSI_DENSITY_HALFINCH_PE:
3106 softc->quirks &= ~SA_QUIRK_1FM;
3107 softc->quirks |= SA_QUIRK_2FM;
3108 break;
3109 default:
3110 break;
3111 }
3112 }
3113
3114 /*
3115 * Now validate that some info we got makes sense.
3116 */
3117 if ((softc->max_blk < softc->media_blksize) ||
3118 (softc->min_blk > softc->media_blksize &&
3119 softc->media_blksize)) {
3120 xpt_print(periph->path,
3121 "BLOCK LIMITS (%d..%d) could not match current "
3122 "block settings (%d)- adjusting\n", softc->min_blk,
3123 softc->max_blk, softc->media_blksize);
3124 softc->max_blk = softc->min_blk =
3125 softc->media_blksize;
3126 }
3127
3128 /*
3129 * Now put ourselves into the right frame of mind based
3130 * upon quirks...
3131 */
3132tryagain:
3133 /*
3134 * If we want to be in FIXED mode and our current blocksize
3135 * is not equal to our last blocksize (if nonzero), try and
3136 * set ourselves to this last blocksize (as the 'preferred'
3137 * block size). The initial quirkmatch at registry sets the
3138 * initial 'last' blocksize. If, for whatever reason, this
3139 * 'last' blocksize is zero, set the blocksize to 512,
3140 * or min_blk if that's larger.
3141 */
3142 if ((softc->quirks & SA_QUIRK_FIXED) &&
3143 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 &&
3144 (softc->media_blksize != softc->last_media_blksize)) {
3145 softc->media_blksize = softc->last_media_blksize;
3146 if (softc->media_blksize == 0) {
3147 softc->media_blksize = 512;
3148 if (softc->media_blksize < softc->min_blk) {
3149 softc->media_blksize = softc->min_blk;
3150 }
3151 }
3152 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
3153 softc->media_blksize, 0, 0, SF_NO_PRINT);
3154 if (error) {
3155 xpt_print(periph->path,
3156 "unable to set fixed blocksize to %d\n",
3157 softc->media_blksize);
3158 goto exit;
3159 }
3160 }
3161
3162 if ((softc->quirks & SA_QUIRK_VARIABLE) &&
3163 (softc->media_blksize != 0)) {
3164 softc->last_media_blksize = softc->media_blksize;
3165 softc->media_blksize = 0;
3166 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
3167 0, 0, 0, SF_NO_PRINT);
3168 if (error) {
3169 /*
3170 * If this fails and we were guessing, just
3171 * assume that we got it wrong and go try
3172 * fixed block mode. Don't even check against
3173 * density code at this point.
3174 */
3175 if (guessing) {
3176 softc->quirks &= ~SA_QUIRK_VARIABLE;
3177 softc->quirks |= SA_QUIRK_FIXED;
3178 if (softc->last_media_blksize == 0)
3179 softc->last_media_blksize = 512;
3180 goto tryagain;
3181 }
3182 xpt_print(periph->path,
3183 "unable to set variable blocksize\n");
3184 goto exit;
3185 }
3186 }
3187
3188 /*
3189 * Now that we have the current block size,
3190 * set up some parameters for sastart's usage.
3191 */
3192 if (softc->media_blksize) {
3193 softc->flags |= SA_FLAG_FIXED;
3194 if (powerof2(softc->media_blksize)) {
3195 softc->blk_shift =
3196 ffs(softc->media_blksize) - 1;
3197 softc->blk_mask = softc->media_blksize - 1;
3198 } else {
3199 softc->blk_mask = ~0;
3200 softc->blk_shift = 0;
3201 }
3202 } else {
3203 /*
3204 * The SCSI-3 spec allows 0 to mean "unspecified".
3205 * The SCSI-1 spec allows 0 to mean 'infinite'.
3206 *
3207 * Either works here.
3208 */
3209 if (softc->max_blk == 0) {
3210 softc->max_blk = ~0;
3211 }
3212 softc->blk_shift = 0;
3213 if (softc->blk_gran != 0) {
3214 softc->blk_mask = softc->blk_gran - 1;
3215 } else {
3216 softc->blk_mask = 0;
3217 }
3218 }
3219
3220 if (write_protect)
3221 softc->flags |= SA_FLAG_TAPE_WP;
3222
3223 if (comp_supported) {
3224 if (softc->saved_comp_algorithm == 0)
3225 softc->saved_comp_algorithm =
3226 softc->comp_algorithm;
3227 softc->flags |= SA_FLAG_COMP_SUPP;
3228 if (comp_enabled)
3229 softc->flags |= SA_FLAG_COMP_ENABLED;
3230 } else
3231 softc->flags |= SA_FLAG_COMP_UNSUPP;
3232
3233 if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) &&
3234 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) {
3235 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0,
3236 0, 0, SF_NO_PRINT);
3237 if (error == 0) {
3238 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF;
3239 } else {
3240 xpt_print(periph->path,
3241 "unable to set buffered mode\n");
3242 }
3243 error = 0; /* not an error */
3244 }
3245
3246
3247 if (error == 0) {
3248 softc->flags |= SA_FLAG_TAPE_MOUNTED;
3249 }
3250exit:
3251 if (rblim != NULL)
3252 free(rblim, M_SCSISA);
3253
3254 if (error != 0) {
3255 softc->dsreg = MTIO_DSREG_NIL;
3256 } else {
3257 softc->fileno = softc->blkno = 0;
3258 softc->rep_fileno = softc->rep_blkno = -1;
3259 softc->partition = 0;
3260 softc->dsreg = MTIO_DSREG_REST;
3261 }
3262#ifdef SA_1FM_AT_EOD
3263 if ((softc->quirks & SA_QUIRK_2FM) == 0)
3264 softc->quirks |= SA_QUIRK_1FM;
3265#else
3266 if ((softc->quirks & SA_QUIRK_1FM) == 0)
3267 softc->quirks |= SA_QUIRK_2FM;
3268#endif
3269 } else
3270 xpt_release_ccb(ccb);
3271
3272 /*
3273 * If we return an error, we're not mounted any more,
3274 * so release any device reservation.
3275 */
3276 if (error != 0) {
3277 (void) sareservereleaseunit(periph, FALSE);
3278 } else {
3279 /*
3280 * Clear I/O residual.
3281 */
3282 softc->last_io_resid = 0;
3283 softc->last_ctl_resid = 0;
3284 }
3285 return (error);
3286}
3287
3288/*
3289 * How many filemarks do we need to write if we were to terminate the
3290 * tape session right now? Note that this can be a negative number
3291 */
3292
3293static int
3294samarkswanted(struct cam_periph *periph)
3295{
3296 int markswanted;
3297 struct sa_softc *softc;
3298
3299 softc = (struct sa_softc *)periph->softc;
3300 markswanted = 0;
3301 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) {
3302 markswanted++;
3303 if (softc->quirks & SA_QUIRK_2FM)
3304 markswanted++;
3305 }
3306 markswanted -= softc->filemarks;
3307 return (markswanted);
3308}
3309
3310static int
3311sacheckeod(struct cam_periph *periph)
3312{
3313 int error;
3314 int markswanted;
3315
3316 markswanted = samarkswanted(periph);
3317
3318 if (markswanted > 0) {
3319 error = sawritefilemarks(periph, markswanted, FALSE, FALSE);
3320 } else {
3321 error = 0;
3322 }
3323 return (error);
3324}
3325
3326static int
3327saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs)
3328{
3329 static const char *toobig =
3330 "%d-byte tape record bigger than supplied buffer\n";
3331 struct cam_periph *periph;
3332 struct sa_softc *softc;
3333 struct ccb_scsiio *csio;
3334 struct scsi_sense_data *sense;
3335 uint64_t resid = 0;
3336 int64_t info = 0;
3337 cam_status status;
3338 int error_code, sense_key, asc, ascq, error, aqvalid, stream_valid;
3339 int sense_len;
3340 uint8_t stream_bits;
3341
3342 periph = xpt_path_periph(ccb->ccb_h.path);
3343 softc = (struct sa_softc *)periph->softc;
3344 csio = &ccb->csio;
3345 sense = &csio->sense_data;
3346 sense_len = csio->sense_len - csio->sense_resid;
3347 scsi_extract_sense_len(sense, sense_len, &error_code, &sense_key,
3348 &asc, &ascq, /*show_errors*/ 1);
3349 if (asc != -1 && ascq != -1)
3350 aqvalid = 1;
3351 else
3352 aqvalid = 0;
3353 if (scsi_get_stream_info(sense, sense_len, NULL, &stream_bits) == 0)
3354 stream_valid = 1;
3355 else
3356 stream_valid = 0;
3357 error = 0;
3358
3359 status = csio->ccb_h.status & CAM_STATUS_MASK;
3360
3361 /*
3362 * Calculate/latch up, any residuals... We do this in a funny 2-step
3363 * so we can print stuff here if we have CAM_DEBUG enabled for this
3364 * unit.
3365 */
3366 if (status == CAM_SCSI_STATUS_ERROR) {
3367 if (scsi_get_sense_info(sense, sense_len, SSD_DESC_INFO, &resid,
3368 &info) == 0) {
3369 if ((softc->flags & SA_FLAG_FIXED) != 0)
3370 resid *= softc->media_blksize;
3371 } else {
3372 resid = csio->dxfer_len;
3373 info = resid;
3374 if ((softc->flags & SA_FLAG_FIXED) != 0) {
3375 if (softc->media_blksize)
3376 info /= softc->media_blksize;
3377 }
3378 }
3379 if (csio->cdb_io.cdb_bytes[0] == SA_READ ||
3380 csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
3381 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense,
3382 sizeof (struct scsi_sense_data));
3383 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb,
3384 (int) csio->cdb_len);
3385 softc->last_io_resid = resid;
3386 softc->last_resid_was_io = 1;
3387 } else {
3388 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense,
3389 sizeof (struct scsi_sense_data));
3390 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb,
3391 (int) csio->cdb_len);
3392 softc->last_ctl_resid = resid;
3393 softc->last_resid_was_io = 0;
3394 }
3395 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x "
3396 "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %jd "
3397 "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff,
3398 sense_key, asc, ascq, status,
3399 (stream_valid) ? stream_bits : 0, (intmax_t)resid,
3400 csio->dxfer_len));
3401 } else {
3402 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
3403 ("Cam Status 0x%x\n", status));
3404 }
3405
3406 switch (status) {
3407 case CAM_REQ_CMP:
3408 return (0);
3409 case CAM_SCSI_STATUS_ERROR:
3410 /*
3411 * If a read/write command, we handle it here.
3412 */
3413 if (csio->cdb_io.cdb_bytes[0] == SA_READ ||
3414 csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
3415 break;
3416 }
3417 /*
3418 * If this was just EOM/EOP, Filemark, Setmark or ILI detected
3419 * on a non read/write command, we assume it's not an error
3420 * and propagate the residule and return.
3421 */
3422 if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) ||
3423 (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) {
3424 csio->resid = resid;
3425 QFRLS(ccb);
3426 return (0);
3427 }
3428 /*
3429 * Otherwise, we let the common code handle this.
3430 */
3431 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
3432
3433 /*
3434 * XXX: To Be Fixed
3435 * We cannot depend upon CAM honoring retry counts for these.
3436 */
3437 case CAM_SCSI_BUS_RESET:
3438 case CAM_BDR_SENT:
3439 if (ccb->ccb_h.retry_count <= 0) {
3440 return (EIO);
3441 }
3442 /* FALLTHROUGH */
3443 default:
3444 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
3445 }
3446
3447 /*
3448 * Handle filemark, end of tape, mismatched record sizes....
3449 * From this point out, we're only handling read/write cases.
3450 * Handle writes && reads differently.
3451 */
3452
3453 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
3454 if (sense_key == SSD_KEY_VOLUME_OVERFLOW) {
3455 csio->resid = resid;
3456 error = ENOSPC;
3457 } else if ((stream_valid != 0) && (stream_bits & SSD_EOM)) {
3458 softc->flags |= SA_FLAG_EOM_PENDING;
3459 /*
3460 * Grotesque as it seems, the few times
3461 * I've actually seen a non-zero resid,
3462 * the tape drive actually lied and had
3463 * written all the data!.
3464 */
3465 csio->resid = 0;
3466 }
3467 } else {
3468 csio->resid = resid;
3469 if (sense_key == SSD_KEY_BLANK_CHECK) {
3470 if (softc->quirks & SA_QUIRK_1FM) {
3471 error = 0;
3472 softc->flags |= SA_FLAG_EOM_PENDING;
3473 } else {
3474 error = EIO;
3475 }
3476 } else if ((stream_valid != 0) && (stream_bits & SSD_FILEMARK)){
3477 if (softc->flags & SA_FLAG_FIXED) {
3478 error = -1;
3479 softc->flags |= SA_FLAG_EOF_PENDING;
3480 }
3481 /*
3482 * Unconditionally, if we detected a filemark on a read,
3483 * mark that we've run moved a file ahead.
3484 */
3485 if (softc->fileno != (daddr_t) -1) {
3486 softc->fileno++;
3487 softc->blkno = 0;
3488 csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED;
3489 }
3490 }
3491 }
3492
3493 /*
3494 * Incorrect Length usually applies to read, but can apply to writes.
3495 */
3496 if (error == 0 && (stream_valid != 0) && (stream_bits & SSD_ILI)) {
3497 if (info < 0) {
3498 xpt_print(csio->ccb_h.path, toobig,
3499 csio->dxfer_len - info);
3500 csio->resid = csio->dxfer_len;
3501 error = EIO;
3502 } else {
3503 csio->resid = resid;
3504 if (softc->flags & SA_FLAG_FIXED) {
3505 softc->flags |= SA_FLAG_EIO_PENDING;
3506 }
3507 /*
3508 * Bump the block number if we hadn't seen a filemark.
3509 * Do this independent of errors (we've moved anyway).
3510 */
3511 if ((stream_valid == 0) ||
3512 (stream_bits & SSD_FILEMARK) == 0) {
3513 if (softc->blkno != (daddr_t) -1) {
3514 softc->blkno++;
3515 csio->ccb_h.ccb_pflags |=
3516 SA_POSITION_UPDATED;
3517 }
3518 }
3519 }
3520 }
3521
3522 if (error <= 0) {
3523 /*
3524 * Unfreeze the queue if frozen as we're not returning anything
3525 * to our waiters that would indicate an I/O error has occurred
3526 * (yet).
3527 */
3528 QFRLS(ccb);
3529 error = 0;
3530 }
3531 return (error);
3532}
3533
3534static int
3535sagetparams(struct cam_periph *periph, sa_params params_to_get,
3536 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks,
3537 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed,
3538 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm,
3539 sa_comp_t *tcs, struct scsi_control_data_prot_subpage *prot_page,
3540 int dp_size, int prot_changeable)
3541{
3542 union ccb *ccb;
3543 void *mode_buffer;
3544 struct scsi_mode_header_6 *mode_hdr;
3545 struct scsi_mode_blk_desc *mode_blk;
3546 int mode_buffer_len;
3547 struct sa_softc *softc;
3548 u_int8_t cpage;
3549 int error;
3550 cam_status status;
3551
3552 softc = (struct sa_softc *)periph->softc;
3553 ccb = cam_periph_getccb(periph, 1);
3554 if (softc->quirks & SA_QUIRK_NO_CPAGE)
3555 cpage = SA_DEVICE_CONFIGURATION_PAGE;
3556 else
3557 cpage = SA_DATA_COMPRESSION_PAGE;
3558
3559retry:
3560 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
3561
3562 if (params_to_get & SA_PARAM_COMPRESSION) {
3563 if (softc->quirks & SA_QUIRK_NOCOMP) {
3564 *comp_supported = FALSE;
3565 params_to_get &= ~SA_PARAM_COMPRESSION;
3566 } else
3567 mode_buffer_len += sizeof (sa_comp_t);
3568 }
3569
3570 /* XXX Fix M_NOWAIT */
3571 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO);
3572 if (mode_buffer == NULL) {
3573 xpt_release_ccb(ccb);
3574 return (ENOMEM);
3575 }
3576 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
3577 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
3578
3579 /* it is safe to retry this */
3580 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3581 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ?
3582 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len,
3583 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
3584
3585 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3586 softc->device_stats);
3587
3588 status = ccb->ccb_h.status & CAM_STATUS_MASK;
3589
3590 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) {
3591 /*
3592 * Hmm. Let's see if we can try another page...
3593 * If we've already done that, give up on compression
3594 * for this device and remember this for the future
3595 * and attempt the request without asking for compression
3596 * info.
3597 */
3598 if (cpage == SA_DATA_COMPRESSION_PAGE) {
3599 cpage = SA_DEVICE_CONFIGURATION_PAGE;
3600 goto retry;
3601 }
3602 softc->quirks |= SA_QUIRK_NOCOMP;
3603 free(mode_buffer, M_SCSISA);
3604 goto retry;
3605 } else if (status == CAM_SCSI_STATUS_ERROR) {
3606 /* Tell the user about the fatal error. */
3607 scsi_sense_print(&ccb->csio);
3608 goto sagetparamsexit;
3609 }
3610
3611 /*
3612 * If the user only wants the compression information, and
3613 * the device doesn't send back the block descriptor, it's
3614 * no big deal. If the user wants more than just
3615 * compression, though, and the device doesn't pass back the
3616 * block descriptor, we need to send another mode sense to
3617 * get the block descriptor.
3618 */
3619 if ((mode_hdr->blk_desc_len == 0) &&
3620 (params_to_get & SA_PARAM_COMPRESSION) &&
3621 (params_to_get & ~(SA_PARAM_COMPRESSION))) {
3622
3623 /*
3624 * Decrease the mode buffer length by the size of
3625 * the compression page, to make sure the data
3626 * there doesn't get overwritten.
3627 */
3628 mode_buffer_len -= sizeof (sa_comp_t);
3629
3630 /*
3631 * Now move the compression page that we presumably
3632 * got back down the memory chunk a little bit so
3633 * it doesn't get spammed.
3634 */
3635 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t));
3636 bzero(&mode_hdr[0], sizeof (mode_hdr[0]));
3637
3638 /*
3639 * Now, we issue another mode sense and just ask
3640 * for the block descriptor, etc.
3641 */
3642
3643 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3644 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE,
3645 mode_buffer, mode_buffer_len, SSD_FULL_SIZE,
3646 SCSIOP_TIMEOUT);
3647
3648 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3649 softc->device_stats);
3650
3651 if (error != 0)
3652 goto sagetparamsexit;
3653 }
3654
3655 if (params_to_get & SA_PARAM_BLOCKSIZE)
3656 *blocksize = scsi_3btoul(mode_blk->blklen);
3657
3658 if (params_to_get & SA_PARAM_NUMBLOCKS)
3659 *numblocks = scsi_3btoul(mode_blk->nblocks);
3660
3661 if (params_to_get & SA_PARAM_BUFF_MODE)
3662 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK;
3663
3664 if (params_to_get & SA_PARAM_DENSITY)
3665 *density = mode_blk->density;
3666
3667 if (params_to_get & SA_PARAM_WP)
3668 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE;
3669
3670 if (params_to_get & SA_PARAM_SPEED)
3671 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK;
3672
3673 if (params_to_get & SA_PARAM_COMPRESSION) {
3674 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1];
3675 if (cpage == SA_DATA_COMPRESSION_PAGE) {
3676 struct scsi_data_compression_page *cp = &ntcs->dcomp;
3677 *comp_supported =
3678 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE;
3679 *comp_enabled =
3680 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE;
3681 *comp_algorithm = scsi_4btoul(cp->comp_algorithm);
3682 } else {
3683 struct scsi_dev_conf_page *cp = &ntcs->dconf;
3684 /*
3685 * We don't really know whether this device supports
3686 * Data Compression if the algorithm field is
3687 * zero. Just say we do.
3688 */
3689 *comp_supported = TRUE;
3690 *comp_enabled =
3691 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE;
3692 *comp_algorithm = cp->sel_comp_alg;
3693 }
3694 if (tcs != NULL)
3695 bcopy(ntcs, tcs, sizeof (sa_comp_t));
3696 }
3697
3698 if ((params_to_get & SA_PARAM_DENSITY_EXT)
3699 && (softc->scsi_rev >= SCSI_REV_SPC)) {
3700 int i;
3701
3702 for (i = 0; i < SA_DENSITY_TYPES; i++) {
3703 scsi_report_density_support(&ccb->csio,
3704 /*retries*/ 1,
3705 /*cbfcnp*/ sadone,
3706 /*tag_action*/ MSG_SIMPLE_Q_TAG,
3707 /*media*/ softc->density_type_bits[i] & SRDS_MEDIA,
3708 /*medium_type*/ softc->density_type_bits[i] &
3709 SRDS_MEDIUM_TYPE,
3710 /*data_ptr*/ softc->density_info[i],
3711 /*length*/ sizeof(softc->density_info[i]),
3712 /*sense_len*/ SSD_FULL_SIZE,
3713 /*timeout*/ REP_DENSITY_TIMEOUT);
3714 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3715 softc->device_stats);
3716 status = ccb->ccb_h.status & CAM_STATUS_MASK;
3717
3718 /*
3719 * Some tape drives won't support this command at
3720 * all, but hopefully we'll minimize that with the
3721 * check for SPC or greater support above. If they
3722 * don't support the default report (neither the
3723 * MEDIA or MEDIUM_TYPE bits set), then there is
3724 * really no point in continuing on to look for
3725 * other reports.
3726 */
3727 if ((error != 0)
3728 || (status != CAM_REQ_CMP)) {
3729 error = 0;
3730 softc->density_info_valid[i] = 0;
3731 if (softc->density_type_bits[i] == 0)
3732 break;
3733 else
3734 continue;
3735 }
3736 softc->density_info_valid[i] = ccb->csio.dxfer_len -
3737 ccb->csio.resid;
3738 }
3739 }
3740
3741 /*
3742 * Get logical block protection parameters if the drive supports it.
3743 */
3744 if ((params_to_get & SA_PARAM_LBP)
3745 && (softc->flags & SA_FLAG_PROTECT_SUPP)) {
3746 struct scsi_mode_header_10 *mode10_hdr;
3747 struct scsi_control_data_prot_subpage *dp_page;
3748 struct scsi_mode_sense_10 *cdb;
3749 struct sa_prot_state *prot;
3750 int dp_len, returned_len;
3751
3752 if (dp_size == 0)
3753 dp_size = sizeof(*dp_page);
3754
3755 dp_len = sizeof(*mode10_hdr) + dp_size;
3756 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO);
3757 if (mode10_hdr == NULL) {
3758 error = ENOMEM;
3759 goto sagetparamsexit;
3760 }
3761
3762 scsi_mode_sense_len(&ccb->csio,
3763 /*retries*/ 5,
3764 /*cbfcnp*/ sadone,
3765 /*tag_action*/ MSG_SIMPLE_Q_TAG,
3766 /*dbd*/ TRUE,
3767 /*page_code*/ (prot_changeable == 0) ?
3768 SMS_PAGE_CTRL_CURRENT :
3769 SMS_PAGE_CTRL_CHANGEABLE,
3770 /*page*/ SMS_CONTROL_MODE_PAGE,
3771 /*param_buf*/ (uint8_t *)mode10_hdr,
3772 /*param_len*/ dp_len,
3773 /*minimum_cmd_size*/ 10,
3774 /*sense_len*/ SSD_FULL_SIZE,
3775 /*timeout*/ SCSIOP_TIMEOUT);
3776 /*
3777 * XXX KDM we need to be able to set the subpage in the
3778 * fill function.
3779 */
3780 cdb = (struct scsi_mode_sense_10 *)ccb->csio.cdb_io.cdb_bytes;
3781 cdb->subpage = SA_CTRL_DP_SUBPAGE_CODE;
3782
3783 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3784 softc->device_stats);
3785 if (error != 0) {
3786 free(mode10_hdr, M_SCSISA);
3787 goto sagetparamsexit;
3788 }
3789
3790 status = ccb->ccb_h.status & CAM_STATUS_MASK;
3791 if (status != CAM_REQ_CMP) {
3792 error = EINVAL;
3793 free(mode10_hdr, M_SCSISA);
3794 goto sagetparamsexit;
3795 }
3796
3797 /*
3798 * The returned data length at least has to be long enough
3799 * for us to look at length in the mode page header.
3800 */
3801 returned_len = ccb->csio.dxfer_len - ccb->csio.resid;
3802 if (returned_len < sizeof(mode10_hdr->data_length)) {
3803 error = EINVAL;
3804 free(mode10_hdr, M_SCSISA);
3805 goto sagetparamsexit;
3806 }
3807
3808 returned_len = min(returned_len,
3809 sizeof(mode10_hdr->data_length) +
3810 scsi_2btoul(mode10_hdr->data_length));
3811
3812 dp_page = (struct scsi_control_data_prot_subpage *)
3813 &mode10_hdr[1];
3814
3815 /*
3816 * We also have to have enough data to include the prot_bits
3817 * in the subpage.
3818 */
3819 if (returned_len < (sizeof(*mode10_hdr) +
3820 __offsetof(struct scsi_control_data_prot_subpage, prot_bits)
3821 + sizeof(dp_page->prot_bits))) {
3822 error = EINVAL;
3823 free(mode10_hdr, M_SCSISA);
3824 goto sagetparamsexit;
3825 }
3826
3827 prot = &softc->prot_info.cur_prot_state;
3828 prot->prot_method = dp_page->prot_method;
3829 prot->pi_length = dp_page->pi_length &
3830 SA_CTRL_DP_PI_LENGTH_MASK;
3831 prot->lbp_w = (dp_page->prot_bits & SA_CTRL_DP_LBP_W) ? 1 :0;
3832 prot->lbp_r = (dp_page->prot_bits & SA_CTRL_DP_LBP_R) ? 1 :0;
3833 prot->rbdp = (dp_page->prot_bits & SA_CTRL_DP_RBDP) ? 1 :0;
3834 prot->initialized = 1;
3835
3836 if (prot_page != NULL)
3837 bcopy(dp_page, prot_page, min(sizeof(*prot_page),
3838 sizeof(*dp_page)));
3839
3840 free(mode10_hdr, M_SCSISA);
3841 }
3842
3843 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
3844 int idx;
3845 char *xyz = mode_buffer;
3846 xpt_print_path(periph->path);
3847 printf("Mode Sense Data=");
3848 for (idx = 0; idx < mode_buffer_len; idx++)
3849 printf(" 0x%02x", xyz[idx] & 0xff);
3850 printf("\n");
3851 }
3852
3853sagetparamsexit:
3854
3855 xpt_release_ccb(ccb);
3856 free(mode_buffer, M_SCSISA);
3857 return (error);
3858}
3859
3860/*
3861 * Set protection information to the pending protection information stored
3862 * in the softc.
3863 */
3864static int
3865sasetprot(struct cam_periph *periph, struct sa_prot_state *new_prot)
3866{
3867 struct sa_softc *softc;
3868 struct scsi_control_data_prot_subpage *dp_page, *dp_changeable;
3869 struct scsi_mode_header_10 *mode10_hdr, *mode10_changeable;
3870 union ccb *ccb;
3871 uint8_t current_speed;
3872 size_t dp_size, dp_page_length;
3873 int dp_len, buff_mode;
3874 int error;
3875
3876 softc = (struct sa_softc *)periph->softc;
3877 mode10_hdr = NULL;
3878 mode10_changeable = NULL;
3879 ccb = NULL;
3880
3881 /*
3882 * Start off with the size set to the actual length of the page
3883 * that we have defined.
3884 */
3885 dp_size = sizeof(*dp_changeable);
3886 dp_page_length = dp_size -
3887 __offsetof(struct scsi_control_data_prot_subpage, prot_method);
3888
3889retry_length:
3890
3891 dp_len = sizeof(*mode10_changeable) + dp_size;
3892 mode10_changeable = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO);
3893 if (mode10_changeable == NULL) {
3894 error = ENOMEM;
3895 goto bailout;
3896 }
3897
3898 dp_changeable =
3899 (struct scsi_control_data_prot_subpage *)&mode10_changeable[1];
3900
3901 /*
3902 * First get the data protection page changeable parameters mask.
3903 * We need to know which parameters the drive supports changing.
3904 * We also need to know what the drive claims that its page length
3905 * is. The reason is that IBM drives in particular are very picky
3906 * about the page length. They want it (the length set in the
3907 * page structure itself) to be 28 bytes, and they want the
3908 * parameter list length specified in the mode select header to be
3909 * 40 bytes. So, to work with IBM drives as well as any other tape
3910 * drive, find out what the drive claims the page length is, and
3911 * make sure that we match that.
3912 */
3913 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP,
3914 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL,
3915 NULL, NULL, dp_changeable, dp_size, /*prot_changeable*/ 1);
3916 if (error != 0)
3917 goto bailout;
3918
3919 if (scsi_2btoul(dp_changeable->length) > dp_page_length) {
3920 dp_page_length = scsi_2btoul(dp_changeable->length);
3921 dp_size = dp_page_length +
3922 __offsetof(struct scsi_control_data_prot_subpage,
3923 prot_method);
3924 free(mode10_changeable, M_SCSISA);
3925 mode10_changeable = NULL;
3926 goto retry_length;
3927 }
3928
3929 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO);
3930 if (mode10_hdr == NULL) {
3931 error = ENOMEM;
3932 goto bailout;
3933 }
3934
3935 dp_page = (struct scsi_control_data_prot_subpage *)&mode10_hdr[1];
3936
3937 /*
3938 * Now grab the actual current settings in the page.
3939 */
3940 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP,
3941 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL,
3942 NULL, NULL, dp_page, dp_size, /*prot_changeable*/ 0);
3943 if (error != 0)
3944 goto bailout;
3945
3946 /* These two fields need to be 0 for MODE SELECT */
3947 scsi_ulto2b(0, mode10_hdr->data_length);
3948 mode10_hdr->medium_type = 0;
3949 /* We are not including a block descriptor */
3950 scsi_ulto2b(0, mode10_hdr->blk_desc_len);
3951
3952 mode10_hdr->dev_spec = current_speed;
3953 /* if set, set single-initiator buffering mode */
3954 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) {
3955 mode10_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
3956 }
3957
3958 /*
3959 * For each field, make sure that the drive allows changing it
3960 * before bringing in the user's setting.
3961 */
3962 if (dp_changeable->prot_method != 0)
3963 dp_page->prot_method = new_prot->prot_method;
3964
3965 if (dp_changeable->pi_length & SA_CTRL_DP_PI_LENGTH_MASK) {
3966 dp_page->pi_length &= ~SA_CTRL_DP_PI_LENGTH_MASK;
3967 dp_page->pi_length |= (new_prot->pi_length &
3968 SA_CTRL_DP_PI_LENGTH_MASK);
3969 }
3970 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_W) {
3971 if (new_prot->lbp_w)
3972 dp_page->prot_bits |= SA_CTRL_DP_LBP_W;
3973 else
3974 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_W;
3975 }
3976
3977 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_R) {
3978 if (new_prot->lbp_r)
3979 dp_page->prot_bits |= SA_CTRL_DP_LBP_R;
3980 else
3981 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_R;
3982 }
3983
3984 if (dp_changeable->prot_bits & SA_CTRL_DP_RBDP) {
3985 if (new_prot->rbdp)
3986 dp_page->prot_bits |= SA_CTRL_DP_RBDP;
3987 else
3988 dp_page->prot_bits &= ~SA_CTRL_DP_RBDP;
3989 }
3990
3991 ccb = cam_periph_getccb(periph, 1);
3992
3993 scsi_mode_select_len(&ccb->csio,
3994 /*retries*/ 5,
3995 /*cbfcnp*/ sadone,
3996 /*tag_action*/ MSG_SIMPLE_Q_TAG,
3997 /*scsi_page_fmt*/ TRUE,
3998 /*save_pages*/ FALSE,
3999 /*param_buf*/ (uint8_t *)mode10_hdr,
4000 /*param_len*/ dp_len,
4001 /*minimum_cmd_size*/ 10,
4002 /*sense_len*/ SSD_FULL_SIZE,
4003 /*timeout*/ SCSIOP_TIMEOUT);
4004
4005 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4006 if (error != 0)
4007 goto bailout;
4008
4009 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
4010 error = EINVAL;
4011 goto bailout;
4012 }
4013
4014 /*
4015 * The operation was successful. We could just copy the settings
4016 * the user requested, but just in case the drive ignored some of
4017 * our settings, let's ask for status again.
4018 */
4019 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP,
4020 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL,
4021 NULL, NULL, dp_page, dp_size, 0);
4022
4023bailout:
4024 if (ccb != NULL)
4025 xpt_release_ccb(ccb);
4026 free(mode10_hdr, M_SCSISA);
4027 free(mode10_changeable, M_SCSISA);
4028 return (error);
4029}
4030
4031/*
4032 * The purpose of this function is to set one of four different parameters
4033 * for a tape drive:
4034 * - blocksize
4035 * - density
4036 * - compression / compression algorithm
4037 * - buffering mode
4038 *
4039 * The assumption is that this will be called from saioctl(), and therefore
4040 * from a process context. Thus the waiting malloc calls below. If that
4041 * assumption ever changes, the malloc calls should be changed to be
4042 * NOWAIT mallocs.
4043 *
4044 * Any or all of the four parameters may be set when this function is
4045 * called. It should handle setting more than one parameter at once.
4046 */
4047static int
4048sasetparams(struct cam_periph *periph, sa_params params_to_set,
4049 u_int32_t blocksize, u_int8_t density, u_int32_t calg,
4050 u_int32_t sense_flags)
4051{
4052 struct sa_softc *softc;
4053 u_int32_t current_blocksize;
4054 u_int32_t current_calg;
4055 u_int8_t current_density;
4056 u_int8_t current_speed;
4057 int comp_enabled, comp_supported;
4058 void *mode_buffer;
4059 int mode_buffer_len;
4060 struct scsi_mode_header_6 *mode_hdr;
4061 struct scsi_mode_blk_desc *mode_blk;
4062 sa_comp_t *ccomp, *cpage;
4063 int buff_mode;
4064 union ccb *ccb = NULL;
4065 int error;
4066
4067 softc = (struct sa_softc *)periph->softc;
4068
4069 ccomp = malloc(sizeof (sa_comp_t), M_SCSISA, M_NOWAIT);
4070 if (ccomp == NULL)
4071 return (ENOMEM);
4072
4073 /*
4074 * Since it doesn't make sense to set the number of blocks, or
4075 * write protection, we won't try to get the current value. We
4076 * always want to get the blocksize, so we can set it back to the
4077 * proper value.
4078 */
4079 error = sagetparams(periph,
4080 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED,
4081 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL,
4082 ¤t_speed, &comp_supported, &comp_enabled,
4083 ¤t_calg, ccomp, NULL, 0, 0);
4084
4085 if (error != 0) {
4086 free(ccomp, M_SCSISA);
4087 return (error);
4088 }
4089
4090 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
4091 if (params_to_set & SA_PARAM_COMPRESSION)
4092 mode_buffer_len += sizeof (sa_comp_t);
4093
4094 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO);
4095 if (mode_buffer == NULL) {
4096 free(ccomp, M_SCSISA);
4097 return (ENOMEM);
4098 }
4099
4100 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
4101 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
4102
4103 ccb = cam_periph_getccb(periph, 1);
4104
4105retry:
4106
4107 if (params_to_set & SA_PARAM_COMPRESSION) {
4108 if (mode_blk) {
4109 cpage = (sa_comp_t *)&mode_blk[1];
4110 } else {
4111 cpage = (sa_comp_t *)&mode_hdr[1];
4112 }
4113 bcopy(ccomp, cpage, sizeof (sa_comp_t));
4114 cpage->hdr.pagecode &= ~0x80;
4115 } else
4116 cpage = NULL;
4117
4118 /*
4119 * If the caller wants us to set the blocksize, use the one they
4120 * pass in. Otherwise, use the blocksize we got back from the
4121 * mode select above.
4122 */
4123 if (mode_blk) {
4124 if (params_to_set & SA_PARAM_BLOCKSIZE)
4125 scsi_ulto3b(blocksize, mode_blk->blklen);
4126 else
4127 scsi_ulto3b(current_blocksize, mode_blk->blklen);
4128
4129 /*
4130 * Set density if requested, else preserve old density.
4131 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
4132 * devices, else density we've latched up in our softc.
4133 */
4134 if (params_to_set & SA_PARAM_DENSITY) {
4135 mode_blk->density = density;
4136 } else if (softc->scsi_rev > SCSI_REV_CCS) {
4137 mode_blk->density = SCSI_SAME_DENSITY;
4138 } else {
4139 mode_blk->density = softc->media_density;
4140 }
4141 }
4142
4143 /*
4144 * For mode selects, these two fields must be zero.
4145 */
4146 mode_hdr->data_length = 0;
4147 mode_hdr->medium_type = 0;
4148
4149 /* set the speed to the current value */
4150 mode_hdr->dev_spec = current_speed;
4151
4152 /* if set, set single-initiator buffering mode */
4153 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) {
4154 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
4155 }
4156
4157 if (mode_blk)
4158 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc);
4159 else
4160 mode_hdr->blk_desc_len = 0;
4161
4162 /*
4163 * First, if the user wants us to set the compression algorithm or
4164 * just turn compression on, check to make sure that this drive
4165 * supports compression.
4166 */
4167 if (params_to_set & SA_PARAM_COMPRESSION) {
4168 /*
4169 * If the compression algorithm is 0, disable compression.
4170 * If the compression algorithm is non-zero, enable
4171 * compression and set the compression type to the
4172 * specified compression algorithm, unless the algorithm is
4173 * MT_COMP_ENABLE. In that case, we look at the
4174 * compression algorithm that is currently set and if it is
4175 * non-zero, we leave it as-is. If it is zero, and we have
4176 * saved a compression algorithm from a time when
4177 * compression was enabled before, set the compression to
4178 * the saved value.
4179 */
4180 switch (ccomp->hdr.pagecode & ~0x80) {
4181 case SA_DEVICE_CONFIGURATION_PAGE:
4182 {
4183 struct scsi_dev_conf_page *dcp = &cpage->dconf;
4184 if (calg == 0) {
4185 dcp->sel_comp_alg = SA_COMP_NONE;
4186 break;
4187 }
4188 if (calg != MT_COMP_ENABLE) {
4189 dcp->sel_comp_alg = calg;
4190 } else if (dcp->sel_comp_alg == SA_COMP_NONE &&
4191 softc->saved_comp_algorithm != 0) {
4192 dcp->sel_comp_alg = softc->saved_comp_algorithm;
4193 }
4194 break;
4195 }
4196 case SA_DATA_COMPRESSION_PAGE:
4197 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) {
4198 struct scsi_data_compression_page *dcp = &cpage->dcomp;
4199 if (calg == 0) {
4200 /*
4201 * Disable compression, but leave the
4202 * decompression and the capability bit
4203 * alone.
4204 */
4205 dcp->dce_and_dcc = SA_DCP_DCC;
4206 dcp->dde_and_red |= SA_DCP_DDE;
4207 break;
4208 }
4209 /* enable compression && decompression */
4210 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC;
4211 dcp->dde_and_red |= SA_DCP_DDE;
4212 /*
4213 * If there, use compression algorithm from caller.
4214 * Otherwise, if there's a saved compression algorithm
4215 * and there is no current algorithm, use the saved
4216 * algorithm. Else parrot back what we got and hope
4217 * for the best.
4218 */
4219 if (calg != MT_COMP_ENABLE) {
4220 scsi_ulto4b(calg, dcp->comp_algorithm);
4221 scsi_ulto4b(calg, dcp->decomp_algorithm);
4222 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 &&
4223 softc->saved_comp_algorithm != 0) {
4224 scsi_ulto4b(softc->saved_comp_algorithm,
4225 dcp->comp_algorithm);
4226 scsi_ulto4b(softc->saved_comp_algorithm,
4227 dcp->decomp_algorithm);
4228 }
4229 break;
4230 }
4231 /*
4232 * Compression does not appear to be supported-
4233 * at least via the DATA COMPRESSION page. It
4234 * would be too much to ask us to believe that
4235 * the page itself is supported, but incorrectly
4236 * reports an ability to manipulate data compression,
4237 * so we'll assume that this device doesn't support
4238 * compression. We can just fall through for that.
4239 */
4240 /* FALLTHROUGH */
4241 default:
4242 /*
4243 * The drive doesn't seem to support compression,
4244 * so turn off the set compression bit.
4245 */
4246 params_to_set &= ~SA_PARAM_COMPRESSION;
4247 xpt_print(periph->path,
4248 "device does not seem to support compression\n");
4249
4250 /*
4251 * If that was the only thing the user wanted us to set,
4252 * clean up allocated resources and return with
4253 * 'operation not supported'.
4254 */
4255 if (params_to_set == SA_PARAM_NONE) {
4256 free(mode_buffer, M_SCSISA);
4257 xpt_release_ccb(ccb);
4258 return (ENODEV);
4259 }
4260
4261 /*
4262 * That wasn't the only thing the user wanted us to set.
4263 * So, decrease the stated mode buffer length by the
4264 * size of the compression mode page.
4265 */
4266 mode_buffer_len -= sizeof(sa_comp_t);
4267 }
4268 }
4269
4270 /* It is safe to retry this operation */
4271 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
4272 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE,
4273 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
4274
4275 error = cam_periph_runccb(ccb, saerror, 0,
4276 sense_flags, softc->device_stats);
4277
4278 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
4279 int idx;
4280 char *xyz = mode_buffer;
4281 xpt_print_path(periph->path);
4282 printf("Err%d, Mode Select Data=", error);
4283 for (idx = 0; idx < mode_buffer_len; idx++)
4284 printf(" 0x%02x", xyz[idx] & 0xff);
4285 printf("\n");
4286 }
4287
4288
4289 if (error) {
4290 /*
4291 * If we can, try without setting density/blocksize.
4292 */
4293 if (mode_blk) {
4294 if ((params_to_set &
4295 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) {
4296 mode_blk = NULL;
4297 goto retry;
4298 }
4299 } else {
4300 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
4301 cpage = (sa_comp_t *)&mode_blk[1];
4302 }
4303
4304 /*
4305 * If we were setting the blocksize, and that failed, we
4306 * want to set it to its original value. If we weren't
4307 * setting the blocksize, we don't want to change it.
4308 */
4309 scsi_ulto3b(current_blocksize, mode_blk->blklen);
4310
4311 /*
4312 * Set density if requested, else preserve old density.
4313 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
4314 * devices, else density we've latched up in our softc.
4315 */
4316 if (params_to_set & SA_PARAM_DENSITY) {
4317 mode_blk->density = current_density;
4318 } else if (softc->scsi_rev > SCSI_REV_CCS) {
4319 mode_blk->density = SCSI_SAME_DENSITY;
4320 } else {
4321 mode_blk->density = softc->media_density;
4322 }
4323
4324 if (params_to_set & SA_PARAM_COMPRESSION)
4325 bcopy(ccomp, cpage, sizeof (sa_comp_t));
4326
4327 /*
4328 * The retry count is the only CCB field that might have been
4329 * changed that we care about, so reset it back to 1.
4330 */
4331 ccb->ccb_h.retry_count = 1;
4332 cam_periph_runccb(ccb, saerror, 0, sense_flags,
4333 softc->device_stats);
4334 }
4335
4336 xpt_release_ccb(ccb);
4337
4338 if (ccomp != NULL)
4339 free(ccomp, M_SCSISA);
4340
4341 if (params_to_set & SA_PARAM_COMPRESSION) {
4342 if (error) {
4343 softc->flags &= ~SA_FLAG_COMP_ENABLED;
4344 /*
4345 * Even if we get an error setting compression,
4346 * do not say that we don't support it. We could
4347 * have been wrong, or it may be media specific.
4348 * softc->flags &= ~SA_FLAG_COMP_SUPP;
4349 */
4350 softc->saved_comp_algorithm = softc->comp_algorithm;
4351 softc->comp_algorithm = 0;
4352 } else {
4353 softc->flags |= SA_FLAG_COMP_ENABLED;
4354 softc->comp_algorithm = calg;
4355 }
4356 }
4357
4358 free(mode_buffer, M_SCSISA);
4359 return (error);
4360}
4361
4362static int
4363saextget(struct cdev *dev, struct cam_periph *periph, struct sbuf *sb,
4364 struct mtextget *g)
4365{
4366 int indent, error;
4367 char tmpstr[80];
4368 struct sa_softc *softc;
4369 int tmpint;
4370 uint32_t maxio_tmp;
4371 struct ccb_getdev cgd;
4372
4373 softc = (struct sa_softc *)periph->softc;
4374
4375 error = 0;
4376
4377 error = sagetparams_common(dev, periph);
4378 if (error)
4379 goto extget_bailout;
4380 if (!SA_IS_CTRL(dev) && !softc->open_pending_mount)
4381 sagetpos(periph);
4382
4383 indent = 0;
4384 SASBADDNODE(sb, indent, mtextget);
4385 /*
4386 * Basic CAM peripheral information.
4387 */
4388 SASBADDVARSTR(sb, indent, periph->periph_name, %s, periph_name,
4389 strlen(periph->periph_name) + 1);
4390 SASBADDUINT(sb, indent, periph->unit_number, %u, unit_number);
4391 xpt_setup_ccb(&cgd.ccb_h,
4392 periph->path,
4393 CAM_PRIORITY_NORMAL);
4394 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
4395 xpt_action((union ccb *)&cgd);
4396 if ((cgd.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
4397 g->status = MT_EXT_GET_ERROR;
4398 snprintf(g->error_str, sizeof(g->error_str),
4399 "Error %#x returned for XPT_GDEV_TYPE CCB",
4400 cgd.ccb_h.status);
4401 goto extget_bailout;
4402 }
4403
4404 cam_strvis(tmpstr, cgd.inq_data.vendor,
4405 sizeof(cgd.inq_data.vendor), sizeof(tmpstr));
4406 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, vendor,
4407 sizeof(cgd.inq_data.vendor) + 1, "SCSI Vendor ID");
4408
4409 cam_strvis(tmpstr, cgd.inq_data.product,
4410 sizeof(cgd.inq_data.product), sizeof(tmpstr));
4411 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, product,
4412 sizeof(cgd.inq_data.product) + 1, "SCSI Product ID");
4413
4414 cam_strvis(tmpstr, cgd.inq_data.revision,
4415 sizeof(cgd.inq_data.revision), sizeof(tmpstr));
4416 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, revision,
4417 sizeof(cgd.inq_data.revision) + 1, "SCSI Revision");
4418
4419 if (cgd.serial_num_len > 0) {
4420 char *tmpstr2;
4421 size_t ts2_len;
4422 int ts2_malloc;
4423
4424 ts2_len = 0;
4425
4426 if (cgd.serial_num_len > sizeof(tmpstr)) {
4427 ts2_len = cgd.serial_num_len + 1;
4428 ts2_malloc = 1;
4429 tmpstr2 = malloc(ts2_len, M_SCSISA, M_WAITOK | M_ZERO);
4430 } else {
4431 ts2_len = sizeof(tmpstr);
4432 ts2_malloc = 0;
4433 tmpstr2 = tmpstr;
4434 }
4435
4436 cam_strvis(tmpstr2, cgd.serial_num, cgd.serial_num_len,
4437 ts2_len);
4438
4439 SASBADDVARSTRDESC(sb, indent, tmpstr2, %s, serial_num,
4440 (ssize_t)cgd.serial_num_len + 1, "Serial Number");
4441 if (ts2_malloc != 0)
4442 free(tmpstr2, M_SCSISA);
4443 } else {
4444 /*
4445 * We return a serial_num element in any case, but it will
4446 * be empty if the device has no serial number.
4447 */
4448 tmpstr[0] = '\0';
4449 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, serial_num,
4450 (ssize_t)0, "Serial Number");
4451 }
4452
4453 SASBADDUINTDESC(sb, indent, softc->maxio, %u, maxio,
4454 "Maximum I/O size allowed by driver and controller");
4455
4456 SASBADDUINTDESC(sb, indent, softc->cpi_maxio, %u, cpi_maxio,
4457 "Maximum I/O size reported by controller");
4458
4459 SASBADDUINTDESC(sb, indent, softc->max_blk, %u, max_blk,
4460 "Maximum block size supported by tape drive and media");
4461
4462 SASBADDUINTDESC(sb, indent, softc->min_blk, %u, min_blk,
4463 "Minimum block size supported by tape drive and media");
4464
4465 SASBADDUINTDESC(sb, indent, softc->blk_gran, %u, blk_gran,
4466 "Block granularity supported by tape drive and media");
4467
4468 maxio_tmp = min(softc->max_blk, softc->maxio);
4469
4470 SASBADDUINTDESC(sb, indent, maxio_tmp, %u, max_effective_iosize,
4471 "Maximum possible I/O size");
4472
4473 SASBADDINTDESC(sb, indent, softc->flags & SA_FLAG_FIXED ? 1 : 0, %d,
4474 fixed_mode, "Set to 1 for fixed block mode, 0 for variable block");
4475
4476 /*
4477 * XXX KDM include SIM, bus, target, LUN?
4478 */
4479 if (softc->flags & SA_FLAG_COMP_UNSUPP)
4480 tmpint = 0;
4481 else
4482 tmpint = 1;
4483 SASBADDINTDESC(sb, indent, tmpint, %d, compression_supported,
4484 "Set to 1 if compression is supported, 0 if not");
4485 if (softc->flags & SA_FLAG_COMP_ENABLED)
4486 tmpint = 1;
4487 else
4488 tmpint = 0;
4489 SASBADDINTDESC(sb, indent, tmpint, %d, compression_enabled,
4490 "Set to 1 if compression is enabled, 0 if not");
4491 SASBADDUINTDESC(sb, indent, softc->comp_algorithm, %u,
4492 compression_algorithm, "Numeric compression algorithm");
4493
4494 safillprot(softc, &indent, sb);
4495
4496 SASBADDUINTDESC(sb, indent, softc->media_blksize, %u,
4497 media_blocksize, "Block size reported by drive or set by user");
4498 SASBADDINTDESC(sb, indent, (intmax_t)softc->fileno, %jd,
4499 calculated_fileno, "Calculated file number, -1 if unknown");
4500 SASBADDINTDESC(sb, indent, (intmax_t)softc->blkno, %jd,
4501 calculated_rel_blkno, "Calculated block number relative to file, "
4502 "set to -1 if unknown");
4503 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_fileno, %jd,
4504 reported_fileno, "File number reported by drive, -1 if unknown");
4505 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_blkno, %jd,
4506 reported_blkno, "Block number relative to BOP/BOT reported by "
4507 "drive, -1 if unknown");
4508 SASBADDINTDESC(sb, indent, (intmax_t)softc->partition, %jd,
4509 partition, "Current partition number, 0 is the default");
4510 SASBADDINTDESC(sb, indent, softc->bop, %d, bop,
4511 "Set to 1 if drive is at the beginning of partition/tape, 0 if "
4512 "not, -1 if unknown");
4513 SASBADDINTDESC(sb, indent, softc->eop, %d, eop,
4514 "Set to 1 if drive is past early warning, 0 if not, -1 if unknown");
4515 SASBADDINTDESC(sb, indent, softc->bpew, %d, bpew,
4516 "Set to 1 if drive is past programmable early warning, 0 if not, "
4517 "-1 if unknown");
4518 SASBADDINTDESC(sb, indent, (intmax_t)softc->last_io_resid, %jd,
4519 residual, "Residual for the last I/O");
4520 /*
4521 * XXX KDM should we send a string with the current driver
4522 * status already decoded instead of a numeric value?
4523 */
4524 SASBADDINTDESC(sb, indent, softc->dsreg, %d, dsreg,
4525 "Current state of the driver");
4526
4527 safilldensitysb(softc, &indent, sb);
4528
4529 SASBENDNODE(sb, indent, mtextget);
4530
4531extget_bailout:
4532
4533 return (error);
4534}
4535
4536static int
4537saparamget(struct sa_softc *softc, struct sbuf *sb)
4538{
4539 int indent;
4540
4541 indent = 0;
4542 SASBADDNODE(sb, indent, mtparamget);
4543 SASBADDINTDESC(sb, indent, softc->sili, %d, sili,
4544 "Suppress an error on underlength variable reads");
4545 SASBADDINTDESC(sb, indent, softc->eot_warn, %d, eot_warn,
4546 "Return an error to warn that end of tape is approaching");
4547 safillprot(softc, &indent, sb);
4548 SASBENDNODE(sb, indent, mtparamget);
4549
4550 return (0);
4551}
4552
4553static void
4554saprevent(struct cam_periph *periph, int action)
4555{
4556 struct sa_softc *softc;
4557 union ccb *ccb;
4558 int error, sf;
4559
4560 softc = (struct sa_softc *)periph->softc;
4561
4562 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0)
4563 return;
4564 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
4565 return;
4566
4567 /*
4568 * We can be quiet about illegal requests.
4569 */
4570 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
4571 sf = 0;
4572 } else
4573 sf = SF_QUIET_IR;
4574
4575 ccb = cam_periph_getccb(periph, 1);
4576
4577 /* It is safe to retry this operation */
4578 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
4579 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
4580
4581 error = cam_periph_runccb(ccb, saerror, 0, sf, softc->device_stats);
4582 if (error == 0) {
4583 if (action == PR_ALLOW)
4584 softc->flags &= ~SA_FLAG_TAPE_LOCKED;
4585 else
4586 softc->flags |= SA_FLAG_TAPE_LOCKED;
4587 }
4588
4589 xpt_release_ccb(ccb);
4590}
4591
4592static int
4593sarewind(struct cam_periph *periph)
4594{
4595 union ccb *ccb;
4596 struct sa_softc *softc;
4597 int error;
4598
4599 softc = (struct sa_softc *)periph->softc;
4600
4601 ccb = cam_periph_getccb(periph, 1);
4602
4603 /* It is safe to retry this operation */
4604 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
4605 SSD_FULL_SIZE, REWIND_TIMEOUT);
4606
4607 softc->dsreg = MTIO_DSREG_REW;
4608 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4609 softc->dsreg = MTIO_DSREG_REST;
4610
4611 xpt_release_ccb(ccb);
4612 if (error == 0) {
4613 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0;
4614 softc->rep_fileno = softc->rep_blkno = (daddr_t) 0;
4615 } else {
4616 softc->fileno = softc->blkno = (daddr_t) -1;
4617 softc->partition = (daddr_t) -1;
4618 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1;
4619 }
4620 return (error);
4621}
4622
4623static int
4624saspace(struct cam_periph *periph, int count, scsi_space_code code)
4625{
4626 union ccb *ccb;
4627 struct sa_softc *softc;
4628 int error;
4629
4630 softc = (struct sa_softc *)periph->softc;
4631
4632 ccb = cam_periph_getccb(periph, 1);
4633
4634 /* This cannot be retried */
4635
4636 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count,
4637 SSD_FULL_SIZE, SPACE_TIMEOUT);
4638
4639 /*
4640 * Clear residual because we will be using it.
4641 */
4642 softc->last_ctl_resid = 0;
4643
4644 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD;
4645 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4646 softc->dsreg = MTIO_DSREG_REST;
4647
4648 xpt_release_ccb(ccb);
4649
4650 /*
4651 * If a spacing operation has failed, we need to invalidate
4652 * this mount.
4653 *
4654 * If the spacing operation was setmarks or to end of recorded data,
4655 * we no longer know our relative position.
4656 *
4657 * If the spacing operations was spacing files in reverse, we
4658 * take account of the residual, but still check against less
4659 * than zero- if we've gone negative, we must have hit BOT.
4660 *
4661 * If the spacing operations was spacing records in reverse and
4662 * we have a residual, we've either hit BOT or hit a filemark.
4663 * In the former case, we know our new record number (0). In
4664 * the latter case, we have absolutely no idea what the real
4665 * record number is- we've stopped between the end of the last
4666 * record in the previous file and the filemark that stopped
4667 * our spacing backwards.
4668 */
4669 if (error) {
4670 softc->fileno = softc->blkno = (daddr_t) -1;
4671 softc->rep_blkno = softc->partition = (daddr_t) -1;
4672 softc->rep_fileno = (daddr_t) -1;
4673 } else if (code == SS_SETMARKS || code == SS_EOD) {
4674 softc->fileno = softc->blkno = (daddr_t) -1;
4675 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) {
4676 softc->fileno += (count - softc->last_ctl_resid);
4677 if (softc->fileno < 0) /* we must of hit BOT */
4678 softc->fileno = 0;
4679 softc->blkno = 0;
4680 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) {
4681 softc->blkno += (count - softc->last_ctl_resid);
4682 if (count < 0) {
4683 if (softc->last_ctl_resid || softc->blkno < 0) {
4684 if (softc->fileno == 0) {
4685 softc->blkno = 0;
4686 } else {
4687 softc->blkno = (daddr_t) -1;
4688 }
4689 }
4690 }
4691 }
4692 if (error == 0)
4693 sagetpos(periph);
4694
4695 return (error);
4696}
4697
4698static int
4699sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks, int immed)
4700{
4701 union ccb *ccb;
4702 struct sa_softc *softc;
4703 int error, nwm = 0;
4704
4705 softc = (struct sa_softc *)periph->softc;
4706 if (softc->open_rdonly)
4707 return (EBADF);
4708
4709 ccb = cam_periph_getccb(periph, 1);
4710 /*
4711 * Clear residual because we will be using it.
4712 */
4713 softc->last_ctl_resid = 0;
4714
4715 softc->dsreg = MTIO_DSREG_FMK;
4716 /* this *must* not be retried */
4717 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG,
4718 immed, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT);
4719 softc->dsreg = MTIO_DSREG_REST;
4720
4721
4722 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4723
4724 if (error == 0 && nmarks) {
4725 struct sa_softc *softc = (struct sa_softc *)periph->softc;
4726 nwm = nmarks - softc->last_ctl_resid;
4727 softc->filemarks += nwm;
4728 }
4729
4730 xpt_release_ccb(ccb);
4731
4732 /*
4733 * Update relative positions (if we're doing that).
4734 */
4735 if (error) {
4736 softc->fileno = softc->blkno = softc->partition = (daddr_t) -1;
4737 } else if (softc->fileno != (daddr_t) -1) {
4738 softc->fileno += nwm;
4739 softc->blkno = 0;
4740 }
4741
4742 /*
4743 * Ask the tape drive for position information.
4744 */
4745 sagetpos(periph);
4746
4747 /*
4748 * If we got valid position information, since we just wrote a file
4749 * mark, we know we're at the file mark and block 0 after that
4750 * filemark.
4751 */
4752 if (softc->rep_fileno != (daddr_t) -1) {
4753 softc->fileno = softc->rep_fileno;
4754 softc->blkno = 0;
4755 }
4756
4757 return (error);
4758}
4759
4760static int
4761sagetpos(struct cam_periph *periph)
4762{
4763 union ccb *ccb;
4764 struct scsi_tape_position_long_data long_pos;
4765 struct sa_softc *softc = (struct sa_softc *)periph->softc;
4766 int error;
4767
4768 if (softc->quirks & SA_QUIRK_NO_LONG_POS) {
4769 softc->rep_fileno = (daddr_t) -1;
4770 softc->rep_blkno = (daddr_t) -1;
4771 softc->bop = softc->eop = softc->bpew = -1;
4772 return (EOPNOTSUPP);
4773 }
4774
4775 bzero(&long_pos, sizeof(long_pos));
4776
4777 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
4778 scsi_read_position_10(&ccb->csio,
4779 /*retries*/ 1,
4780 /*cbfcnp*/ sadone,
4781 /*tag_action*/ MSG_SIMPLE_Q_TAG,
4782 /*service_action*/ SA_RPOS_LONG_FORM,
4783 /*data_ptr*/ (uint8_t *)&long_pos,
4784 /*length*/ sizeof(long_pos),
4785 /*sense_len*/ SSD_FULL_SIZE,
4786 /*timeout*/ SCSIOP_TIMEOUT);
4787
4788 softc->dsreg = MTIO_DSREG_RBSY;
4789 error = cam_periph_runccb(ccb, saerror, 0, SF_QUIET_IR,
4790 softc->device_stats);
4791 softc->dsreg = MTIO_DSREG_REST;
4792
4793 if (error == 0) {
4794 if (long_pos.flags & SA_RPOS_LONG_MPU) {
4795 /*
4796 * If the drive doesn't know what file mark it is
4797 * on, our calculated filemark isn't going to be
4798 * accurate either.
4799 */
4800 softc->fileno = (daddr_t) -1;
4801 softc->rep_fileno = (daddr_t) -1;
4802 } else {
4803 softc->fileno = softc->rep_fileno =
4804 scsi_8btou64(long_pos.logical_file_num);
4805 }
4806
4807 if (long_pos.flags & SA_RPOS_LONG_LONU) {
4808 softc->partition = (daddr_t) -1;
4809 softc->rep_blkno = (daddr_t) -1;
4810 /*
4811 * If the tape drive doesn't know its block
4812 * position, we can't claim to know it either.
4813 */
4814 softc->blkno = (daddr_t) -1;
4815 } else {
4816 softc->partition = scsi_4btoul(long_pos.partition);
4817 softc->rep_blkno =
4818 scsi_8btou64(long_pos.logical_object_num);
4819 }
4820 if (long_pos.flags & SA_RPOS_LONG_BOP)
4821 softc->bop = 1;
4822 else
4823 softc->bop = 0;
4824
4825 if (long_pos.flags & SA_RPOS_LONG_EOP)
4826 softc->eop = 1;
4827 else
4828 softc->eop = 0;
4829
4830 if (long_pos.flags & SA_RPOS_LONG_BPEW)
4831 softc->bpew = 1;
4832 else
4833 softc->bpew = 0;
4834 } else if (error == EINVAL) {
4835 /*
4836 * If this drive returned an invalid-request type error,
4837 * then it likely doesn't support the long form report.
4838 */
4839 softc->quirks |= SA_QUIRK_NO_LONG_POS;
4840 }
4841
4842 if (error != 0) {
4843 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1;
4844 softc->partition = (daddr_t) -1;
4845 softc->bop = softc->eop = softc->bpew = -1;
4846 }
4847
4848 xpt_release_ccb(ccb);
4849
4850 return (error);
4851}
4852
4853static int
4854sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
4855{
4856 struct scsi_tape_position_data loc;
4857 union ccb *ccb;
4858 struct sa_softc *softc = (struct sa_softc *)periph->softc;
4859 int error;
4860
4861 /*
4862 * We try and flush any buffered writes here if we were writing
4863 * and we're trying to get hardware block position. It eats
4864 * up performance substantially, but I'm wary of drive firmware.
4865 *
4866 * I think that *logical* block position is probably okay-
4867 * but hardware block position might have to wait for data
4868 * to hit media to be valid. Caveat Emptor.
4869 */
4870
4871 if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) {
4872 error = sawritefilemarks(periph, 0, 0, 0);
4873 if (error && error != EACCES)
4874 return (error);
4875 }
4876
4877 ccb = cam_periph_getccb(periph, 1);
4878 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
4879 hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
4880 softc->dsreg = MTIO_DSREG_RBSY;
4881 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4882 softc->dsreg = MTIO_DSREG_REST;
4883
4884 if (error == 0) {
4885 if (loc.flags & SA_RPOS_UNCERTAIN) {
4886 error = EINVAL; /* nothing is certain */
4887 } else {
4888 *blkptr = scsi_4btoul(loc.firstblk);
4889 }
4890 }
4891
4892 xpt_release_ccb(ccb);
4893 return (error);
4894}
4895
4896static int
4897sasetpos(struct cam_periph *periph, int hard, struct mtlocate *locate_info)
4898{
4899 union ccb *ccb;
4900 struct sa_softc *softc;
4901 int locate16;
4902 int immed, cp;
4903 int error;
4904
4905 /*
4906 * We used to try and flush any buffered writes here.
4907 * Now we push this onto user applications to either
4908 * flush the pending writes themselves (via a zero count
4909 * WRITE FILEMARKS command) or they can trust their tape
4910 * drive to do this correctly for them.
4911 */
4912
4913 softc = (struct sa_softc *)periph->softc;
4914 ccb = cam_periph_getccb(periph, 1);
4915
4916 cp = locate_info->flags & MT_LOCATE_FLAG_CHANGE_PART ? 1 : 0;
4917 immed = locate_info->flags & MT_LOCATE_FLAG_IMMED ? 1 : 0;
4918
4919 /*
4920 * Determine whether we have to use LOCATE or LOCATE16. The hard
4921 * bit is only possible with LOCATE, but the new ioctls do not
4922 * allow setting that bit. So we can't get into the situation of
4923 * having the hard bit set with a block address that is larger than
4924 * 32-bits.
4925 */
4926 if (hard != 0)
4927 locate16 = 0;
4928 else if ((locate_info->dest_type != MT_LOCATE_DEST_OBJECT)
4929 || (locate_info->block_address_mode != MT_LOCATE_BAM_IMPLICIT)
4930 || (locate_info->logical_id > SA_SPOS_MAX_BLK))
4931 locate16 = 1;
4932 else
4933 locate16 = 0;
4934
4935 if (locate16 != 0) {
4936 scsi_locate_16(&ccb->csio,
4937 /*retries*/ 1,
4938 /*cbfcnp*/ sadone,
4939 /*tag_action*/ MSG_SIMPLE_Q_TAG,
4940 /*immed*/ immed,
4941 /*cp*/ cp,
4942 /*dest_type*/ locate_info->dest_type,
4943 /*bam*/ locate_info->block_address_mode,
4944 /*partition*/ locate_info->partition,
4945 /*logical_id*/ locate_info->logical_id,
4946 /*sense_len*/ SSD_FULL_SIZE,
4947 /*timeout*/ SPACE_TIMEOUT);
4948 } else {
4949 uint32_t blk_pointer;
4950
4951 blk_pointer = locate_info->logical_id;
4952
4953 scsi_locate_10(&ccb->csio,
4954 /*retries*/ 1,
4955 /*cbfcnp*/ sadone,
4956 /*tag_action*/ MSG_SIMPLE_Q_TAG,
4957 /*immed*/ immed,
4958 /*cp*/ cp,
4959 /*hard*/ hard,
4960 /*partition*/ locate_info->partition,
4961 /*block_address*/ locate_info->logical_id,
4962 /*sense_len*/ SSD_FULL_SIZE,
4963 /*timeout*/ SPACE_TIMEOUT);
4964 }
4965
4966 softc->dsreg = MTIO_DSREG_POS;
4967 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4968 softc->dsreg = MTIO_DSREG_REST;
4969 xpt_release_ccb(ccb);
4970
4971 /*
4972 * We assume the calculated file and block numbers are unknown
4973 * unless we have enough information to populate them.
4974 */
4975 softc->fileno = softc->blkno = (daddr_t) -1;
4976
4977 /*
4978 * If the user requested changing the partition and the request
4979 * succeeded, note the partition.
4980 */
4981 if ((error == 0)
4982 && (cp != 0))
4983 softc->partition = locate_info->partition;
4984 else
4985 softc->partition = (daddr_t) -1;
4986
4987 if (error == 0) {
4988 switch (locate_info->dest_type) {
4989 case MT_LOCATE_DEST_FILE:
4990 /*
4991 * This is the only case where we can reliably
4992 * calculate the file and block numbers.
4993 */
4994 softc->fileno = locate_info->logical_id;
4995 softc->blkno = 0;
4996 break;
4997 case MT_LOCATE_DEST_OBJECT:
4998 case MT_LOCATE_DEST_SET:
4999 case MT_LOCATE_DEST_EOD:
5000 default:
5001 break;
5002 }
5003 }
5004
5005 /*
5006 * Ask the drive for current position information.
5007 */
5008 sagetpos(periph);
5009
5010 return (error);
5011}
5012
5013static int
5014saretension(struct cam_periph *periph)
5015{
5016 union ccb *ccb;
5017 struct sa_softc *softc;
5018 int error;
5019
5020 softc = (struct sa_softc *)periph->softc;
5021
5022 ccb = cam_periph_getccb(periph, 1);
5023
5024 /* It is safe to retry this operation */
5025 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
5026 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT);
5027
5028 softc->dsreg = MTIO_DSREG_TEN;
5029 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
5030 softc->dsreg = MTIO_DSREG_REST;
5031
5032 xpt_release_ccb(ccb);
5033 if (error == 0) {
5034 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0;
5035 sagetpos(periph);
5036 } else
5037 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1;
5038 return (error);
5039}
5040
5041static int
5042sareservereleaseunit(struct cam_periph *periph, int reserve)
5043{
5044 union ccb *ccb;
5045 struct sa_softc *softc;
5046 int error;
5047
5048 softc = (struct sa_softc *)periph->softc;
5049 ccb = cam_periph_getccb(periph, 1);
5050
5051 /* It is safe to retry this operation */
5052 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
5053 FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve);
5054 softc->dsreg = MTIO_DSREG_RBSY;
5055 error = cam_periph_runccb(ccb, saerror, 0,
5056 SF_RETRY_UA | SF_NO_PRINT, softc->device_stats);
5057 softc->dsreg = MTIO_DSREG_REST;
5058 xpt_release_ccb(ccb);
5059
5060 /*
5061 * If the error was Illegal Request, then the device doesn't support
5062 * RESERVE/RELEASE. This is not an error.
5063 */
5064 if (error == EINVAL) {
5065 error = 0;
5066 }
5067
5068 return (error);
5069}
5070
5071static int
5072saloadunload(struct cam_periph *periph, int load)
5073{
5074 union ccb *ccb;
5075 struct sa_softc *softc;
5076 int error;
5077
5078 softc = (struct sa_softc *)periph->softc;
5079
5080 ccb = cam_periph_getccb(periph, 1);
5081
5082 /* It is safe to retry this operation */
5083 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
5084 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT);
5085
5086 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL;
5087 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
5088 softc->dsreg = MTIO_DSREG_REST;
5089 xpt_release_ccb(ccb);
5090
5091 if (error || load == 0) {
5092 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1;
5093 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1;
5094 } else if (error == 0) {
5095 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0;
5096 sagetpos(periph);
5097 }
5098 return (error);
5099}
5100
5101static int
5102saerase(struct cam_periph *periph, int longerase)
5103{
5104
5105 union ccb *ccb;
5106 struct sa_softc *softc;
5107 int error;
5108
5109 softc = (struct sa_softc *)periph->softc;
5110 if (softc->open_rdonly)
5111 return (EBADF);
5112
5113 ccb = cam_periph_getccb(periph, 1);
5114
5115 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase,
5116 SSD_FULL_SIZE, ERASE_TIMEOUT);
5117
5118 softc->dsreg = MTIO_DSREG_ZER;
5119 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
5120 softc->dsreg = MTIO_DSREG_REST;
5121
5122 xpt_release_ccb(ccb);
5123 return (error);
5124}
5125
5126/*
5127 * Fill an sbuf with density data in XML format. This particular macro
5128 * works for multi-byte integer fields.
5129 *
5130 * Note that 1 byte fields aren't supported here. The reason is that the
5131 * compiler does not evaluate the sizeof(), and assumes that any of the
5132 * sizes are possible for a given field. So passing in a multi-byte
5133 * field will result in a warning that the assignment makes an integer
5134 * from a pointer without a cast, if there is an assignment in the 1 byte
5135 * case.
5136 */
5137#define SAFILLDENSSB(dens_data, sb, indent, field, desc_remain, \
5138 len_to_go, cur_offset, desc){ \
5139 size_t cur_field_len; \
5140 \
5141 cur_field_len = sizeof(dens_data->field); \
5142 if (desc_remain < cur_field_len) { \
5143 len_to_go -= desc_remain; \
5144 cur_offset += desc_remain; \
5145 continue; \
5146 } \
5147 len_to_go -= cur_field_len; \
5148 cur_offset += cur_field_len; \
5149 desc_remain -= cur_field_len; \
5150 \
5151 switch (sizeof(dens_data->field)) { \
5152 case 1: \
5153 KASSERT(1 == 0, ("Programmer error, invalid 1 byte " \
5154 "field width for SAFILLDENSFIELD")); \
5155 break; \
5156 case 2: \
5157 SASBADDUINTDESC(sb, indent, \
5158 scsi_2btoul(dens_data->field), %u, field, desc); \
5159 break; \
5160 case 3: \
5161 SASBADDUINTDESC(sb, indent, \
5162 scsi_3btoul(dens_data->field), %u, field, desc); \
5163 break; \
5164 case 4: \
5165 SASBADDUINTDESC(sb, indent, \
5166 scsi_4btoul(dens_data->field), %u, field, desc); \
5167 break; \
5168 case 8: \
5169 SASBADDUINTDESC(sb, indent, \
5170 (uintmax_t)scsi_8btou64(dens_data->field), %ju, \
5171 field, desc); \
5172 break; \
5173 default: \
5174 break; \
5175 } \
5176};
5177/*
5178 * Fill an sbuf with density data in XML format. This particular macro
5179 * works for strings.
5180 */
5181#define SAFILLDENSSBSTR(dens_data, sb, indent, field, desc_remain, \
5182 len_to_go, cur_offset, desc){ \
5183 size_t cur_field_len; \
5184 char tmpstr[32]; \
5185 \
5186 cur_field_len = sizeof(dens_data->field); \
5187 if (desc_remain < cur_field_len) { \
5188 len_to_go -= desc_remain; \
5189 cur_offset += desc_remain; \
5190 continue; \
5191 } \
5192 len_to_go -= cur_field_len; \
5193 cur_offset += cur_field_len; \
5194 desc_remain -= cur_field_len; \
5195 \
5196 cam_strvis(tmpstr, dens_data->field, \
5197 sizeof(dens_data->field), sizeof(tmpstr)); \
5198 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, field, \
5199 strlen(tmpstr) + 1, desc); \
5200};
5201
5202/*
5203 * Fill an sbuf with density data descriptors.
5204 */
5205static void
5206safilldenstypesb(struct sbuf *sb, int *indent, uint8_t *buf, int buf_len,
5207 int is_density)
5208{
5209 struct scsi_density_hdr *hdr;
5210 uint32_t hdr_len;
5211 int len_to_go, cur_offset;
5212 int length_offset;
5213 int num_reports, need_close;
5214
5215 /*
5216 * We need at least the header length. Note that this isn't an
5217 * error, not all tape drives will have every data type.
5218 */
5219 if (buf_len < sizeof(*hdr))
5220 goto bailout;
5221
5222
5223 hdr = (struct scsi_density_hdr *)buf;
5224 hdr_len = scsi_2btoul(hdr->length);
5225 len_to_go = min(buf_len - sizeof(*hdr), hdr_len);
5226 if (is_density) {
5227 length_offset = __offsetof(struct scsi_density_data,
5228 bits_per_mm);
5229 } else {
5230 length_offset = __offsetof(struct scsi_medium_type_data,
5231 num_density_codes);
5232 }
5233 cur_offset = sizeof(*hdr);
5234
5235 num_reports = 0;
5236 need_close = 0;
5237
5238 while (len_to_go > length_offset) {
5239 struct scsi_density_data *dens_data;
5240 struct scsi_medium_type_data *type_data;
5241 int desc_remain;
5242 size_t cur_field_len;
5243
5244 dens_data = NULL;
5245 type_data = NULL;
5246
5247 if (is_density) {
5248 dens_data =(struct scsi_density_data *)&buf[cur_offset];
5249 if (dens_data->byte2 & SDD_DLV)
5250 desc_remain = scsi_2btoul(dens_data->length);
5251 else
5252 desc_remain = SDD_DEFAULT_LENGTH -
5253 length_offset;
5254 } else {
5255 type_data = (struct scsi_medium_type_data *)
5256 &buf[cur_offset];
5257 desc_remain = scsi_2btoul(type_data->length);
5258 }
5259
5260 len_to_go -= length_offset;
5261 desc_remain = min(desc_remain, len_to_go);
5262 cur_offset += length_offset;
5263
5264 if (need_close != 0) {
5265 SASBENDNODE(sb, *indent, density_entry);
5266 }
5267
5268 SASBADDNODENUM(sb, *indent, density_entry, num_reports);
5269 num_reports++;
5270 need_close = 1;
5271
5272 if (is_density) {
5273 SASBADDUINTDESC(sb, *indent,
5274 dens_data->primary_density_code, %u,
5275 primary_density_code, "Primary Density Code");
5276 SASBADDUINTDESC(sb, *indent,
5277 dens_data->secondary_density_code, %u,
5278 secondary_density_code, "Secondary Density Code");
5279 SASBADDUINTDESC(sb, *indent,
5280 dens_data->byte2 & ~SDD_DLV, %#x, density_flags,
5281 "Density Flags");
5282
5283 SAFILLDENSSB(dens_data, sb, *indent, bits_per_mm,
5284 desc_remain, len_to_go, cur_offset, "Bits per mm");
5285 SAFILLDENSSB(dens_data, sb, *indent, media_width,
5286 desc_remain, len_to_go, cur_offset, "Media width");
5287 SAFILLDENSSB(dens_data, sb, *indent, tracks,
5288 desc_remain, len_to_go, cur_offset,
5289 "Number of Tracks");
5290 SAFILLDENSSB(dens_data, sb, *indent, capacity,
5291 desc_remain, len_to_go, cur_offset, "Capacity");
5292
5293 SAFILLDENSSBSTR(dens_data, sb, *indent, assigning_org,
5294 desc_remain, len_to_go, cur_offset,
5295 "Assigning Organization");
5296
5297 SAFILLDENSSBSTR(dens_data, sb, *indent, density_name,
5298 desc_remain, len_to_go, cur_offset, "Density Name");
5299
5300 SAFILLDENSSBSTR(dens_data, sb, *indent, description,
5301 desc_remain, len_to_go, cur_offset, "Description");
5302 } else {
5303 int i;
5304
5305 SASBADDUINTDESC(sb, *indent, type_data->medium_type,
5306 %u, medium_type, "Medium Type");
5307
5308 cur_field_len =
5309 __offsetof(struct scsi_medium_type_data,
5310 media_width) -
5311 __offsetof(struct scsi_medium_type_data,
5312 num_density_codes);
5313
5314 if (desc_remain < cur_field_len) {
5315 len_to_go -= desc_remain;
5316 cur_offset += desc_remain;
5317 continue;
5318 }
5319 len_to_go -= cur_field_len;
5320 cur_offset += cur_field_len;
5321 desc_remain -= cur_field_len;
5322
5323 SASBADDINTDESC(sb, *indent,
5324 type_data->num_density_codes, %d,
5325 num_density_codes, "Number of Density Codes");
5326 SASBADDNODE(sb, *indent, density_code_list);
5327 for (i = 0; i < type_data->num_density_codes;
5328 i++) {
5329 SASBADDUINTDESC(sb, *indent,
5330 type_data->primary_density_codes[i], %u,
5331 density_code, "Density Code");
5332 }
5333 SASBENDNODE(sb, *indent, density_code_list);
5334
5335 SAFILLDENSSB(type_data, sb, *indent, media_width,
5336 desc_remain, len_to_go, cur_offset,
5337 "Media width");
5338 SAFILLDENSSB(type_data, sb, *indent, medium_length,
5339 desc_remain, len_to_go, cur_offset,
5340 "Medium length");
5341
5342 /*
5343 * Account for the two reserved bytes.
5344 */
5345 cur_field_len = sizeof(type_data->reserved2);
5346 if (desc_remain < cur_field_len) {
5347 len_to_go -= desc_remain;
5348 cur_offset += desc_remain;
5349 continue;
5350 }
5351 len_to_go -= cur_field_len;
5352 cur_offset += cur_field_len;
5353 desc_remain -= cur_field_len;
5354
5355 SAFILLDENSSBSTR(type_data, sb, *indent, assigning_org,
5356 desc_remain, len_to_go, cur_offset,
5357 "Assigning Organization");
5358 SAFILLDENSSBSTR(type_data, sb, *indent,
5359 medium_type_name, desc_remain, len_to_go,
5360 cur_offset, "Medium type name");
5361 SAFILLDENSSBSTR(type_data, sb, *indent, description,
5362 desc_remain, len_to_go, cur_offset, "Description");
5363
5364 }
5365 }
5366 if (need_close != 0) {
5367 SASBENDNODE(sb, *indent, density_entry);
5368 }
5369
5370bailout:
5371 return;
5372}
5373
5374/*
5375 * Fill an sbuf with density data information
5376 */
5377static void
5378safilldensitysb(struct sa_softc *softc, int *indent, struct sbuf *sb)
5379{
5380 int i, is_density;
5381
5382 SASBADDNODE(sb, *indent, mtdensity);
5383 SASBADDUINTDESC(sb, *indent, softc->media_density, %u, media_density,
5384 "Current Medium Density");
5385 is_density = 0;
5386 for (i = 0; i < SA_DENSITY_TYPES; i++) {
5387 int tmpint;
5388
5389 if (softc->density_info_valid[i] == 0)
5390 continue;
5391
5392 SASBADDNODE(sb, *indent, density_report);
5393 if (softc->density_type_bits[i] & SRDS_MEDIUM_TYPE) {
5394 tmpint = 1;
5395 is_density = 0;
5396 } else {
5397 tmpint = 0;
5398 is_density = 1;
5399 }
5400 SASBADDINTDESC(sb, *indent, tmpint, %d, medium_type_report,
5401 "Medium type report");
5402
5403 if (softc->density_type_bits[i] & SRDS_MEDIA)
5404 tmpint = 1;
5405 else
5406 tmpint = 0;
5407 SASBADDINTDESC(sb, *indent, tmpint, %d, media_report,
5408 "Media report");
5409
5410 safilldenstypesb(sb, indent, softc->density_info[i],
5411 softc->density_info_valid[i], is_density);
5412 SASBENDNODE(sb, *indent, density_report);
5413 }
5414 SASBENDNODE(sb, *indent, mtdensity);
5415}
5416
5417#endif /* _KERNEL */
5418
5419/*
5420 * Read tape block limits command.
5421 */
5422void
5423scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries,
5424 void (*cbfcnp)(struct cam_periph *, union ccb *),
5425 u_int8_t tag_action,
5426 struct scsi_read_block_limits_data *rlimit_buf,
5427 u_int8_t sense_len, u_int32_t timeout)
5428{
5429 struct scsi_read_block_limits *scsi_cmd;
5430
5431 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
5432 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len,
5433 sizeof(*scsi_cmd), timeout);
5434
5435 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes;
5436 bzero(scsi_cmd, sizeof(*scsi_cmd));
5437 scsi_cmd->opcode = READ_BLOCK_LIMITS;
5438}
5439
5440void
5441scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
5442 void (*cbfcnp)(struct cam_periph *, union ccb *),
5443 u_int8_t tag_action, int readop, int sli,
5444 int fixed, u_int32_t length, u_int8_t *data_ptr,
5445 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout)
5446{
5447 struct scsi_sa_rw *scsi_cmd;
5448 int read;
5449
5450 read = (readop & SCSI_RW_DIRMASK) == SCSI_RW_READ;
5451
5452 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes;
5453 scsi_cmd->opcode = read ? SA_READ : SA_WRITE;
5454 scsi_cmd->sli_fixed = 0;
5455 if (sli && read)
5456 scsi_cmd->sli_fixed |= SAR_SLI;
5457 if (fixed)
5458 scsi_cmd->sli_fixed |= SARW_FIXED;
5459 scsi_ulto3b(length, scsi_cmd->length);
5460 scsi_cmd->control = 0;
5461
5462 cam_fill_csio(csio, retries, cbfcnp, (read ? CAM_DIR_IN : CAM_DIR_OUT) |
5463 ((readop & SCSI_RW_BIO) != 0 ? CAM_DATA_BIO : 0),
5464 tag_action, data_ptr, dxfer_len, sense_len,
5465 sizeof(*scsi_cmd), timeout);
5466}
5467
5468void
5469scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
5470 void (*cbfcnp)(struct cam_periph *, union ccb *),
5471 u_int8_t tag_action, int immediate, int eot,
5472 int reten, int load, u_int8_t sense_len,
5473 u_int32_t timeout)
5474{
5475 struct scsi_load_unload *scsi_cmd;
5476
5477 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes;
5478 bzero(scsi_cmd, sizeof(*scsi_cmd));
5479 scsi_cmd->opcode = LOAD_UNLOAD;
5480 if (immediate)
5481 scsi_cmd->immediate = SLU_IMMED;
5482 if (eot)
5483 scsi_cmd->eot_reten_load |= SLU_EOT;
5484 if (reten)
5485 scsi_cmd->eot_reten_load |= SLU_RETEN;
5486 if (load)
5487 scsi_cmd->eot_reten_load |= SLU_LOAD;
5488
5489 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
5490 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout);
5491}
5492
5493void
5494scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
5495 void (*cbfcnp)(struct cam_periph *, union ccb *),
5496 u_int8_t tag_action, int immediate, u_int8_t sense_len,
5497 u_int32_t timeout)
5498{
5499 struct scsi_rewind *scsi_cmd;
5500
5501 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes;
5502 bzero(scsi_cmd, sizeof(*scsi_cmd));
5503 scsi_cmd->opcode = REWIND;
5504 if (immediate)
5505 scsi_cmd->immediate = SREW_IMMED;
5506
5507 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5508 0, sense_len, sizeof(*scsi_cmd), timeout);
5509}
5510
5511void
5512scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
5513 void (*cbfcnp)(struct cam_periph *, union ccb *),
5514 u_int8_t tag_action, scsi_space_code code,
5515 u_int32_t count, u_int8_t sense_len, u_int32_t timeout)
5516{
5517 struct scsi_space *scsi_cmd;
5518
5519 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes;
5520 scsi_cmd->opcode = SPACE;
5521 scsi_cmd->code = code;
5522 scsi_ulto3b(count, scsi_cmd->count);
5523 scsi_cmd->control = 0;
5524
5525 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5526 0, sense_len, sizeof(*scsi_cmd), timeout);
5527}
5528
5529void
5530scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
5531 void (*cbfcnp)(struct cam_periph *, union ccb *),
5532 u_int8_t tag_action, int immediate, int setmark,
5533 u_int32_t num_marks, u_int8_t sense_len,
5534 u_int32_t timeout)
5535{
5536 struct scsi_write_filemarks *scsi_cmd;
5537
5538 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes;
5539 bzero(scsi_cmd, sizeof(*scsi_cmd));
5540 scsi_cmd->opcode = WRITE_FILEMARKS;
5541 if (immediate)
5542 scsi_cmd->byte2 |= SWFMRK_IMMED;
5543 if (setmark)
5544 scsi_cmd->byte2 |= SWFMRK_WSMK;
5545
5546 scsi_ulto3b(num_marks, scsi_cmd->num_marks);
5547
5548 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5549 0, sense_len, sizeof(*scsi_cmd), timeout);
5550}
5551
5552/*
5553 * The reserve and release unit commands differ only by their opcodes.
5554 */
5555void
5556scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
5557 void (*cbfcnp)(struct cam_periph *, union ccb *),
5558 u_int8_t tag_action, int third_party,
5559 int third_party_id, u_int8_t sense_len,
5560 u_int32_t timeout, int reserve)
5561{
5562 struct scsi_reserve_release_unit *scsi_cmd;
5563
5564 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes;
5565 bzero(scsi_cmd, sizeof(*scsi_cmd));
5566
5567 if (reserve)
5568 scsi_cmd->opcode = RESERVE_UNIT;
5569 else
5570 scsi_cmd->opcode = RELEASE_UNIT;
5571
5572 if (third_party) {
5573 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY;
5574 scsi_cmd->lun_thirdparty |=
5575 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK);
5576 }
5577
5578 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5579 0, sense_len, sizeof(*scsi_cmd), timeout);
5580}
5581
5582void
5583scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
5584 void (*cbfcnp)(struct cam_periph *, union ccb *),
5585 u_int8_t tag_action, int immediate, int long_erase,
5586 u_int8_t sense_len, u_int32_t timeout)
5587{
5588 struct scsi_erase *scsi_cmd;
5589
5590 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes;
5591 bzero(scsi_cmd, sizeof(*scsi_cmd));
5592
5593 scsi_cmd->opcode = ERASE;
5594
5595 if (immediate)
5596 scsi_cmd->lun_imm_long |= SE_IMMED;
5597
5598 if (long_erase)
5599 scsi_cmd->lun_imm_long |= SE_LONG;
5600
5601 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5602 0, sense_len, sizeof(*scsi_cmd), timeout);
5603}
5604
5605/*
5606 * Read Tape Position command.
5607 */
5608void
5609scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries,
5610 void (*cbfcnp)(struct cam_periph *, union ccb *),
5611 u_int8_t tag_action, int hardsoft,
5612 struct scsi_tape_position_data *sbp,
5613 u_int8_t sense_len, u_int32_t timeout)
5614{
5615 struct scsi_tape_read_position *scmd;
5616
5617 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
5618 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout);
5619 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
5620 bzero(scmd, sizeof(*scmd));
5621 scmd->opcode = READ_POSITION;
5622 scmd->byte1 = hardsoft;
5623}
5624
5625/*
5626 * Read Tape Position command.
5627 */
5628void
5629scsi_read_position_10(struct ccb_scsiio *csio, u_int32_t retries,
5630 void (*cbfcnp)(struct cam_periph *, union ccb *),
5631 u_int8_t tag_action, int service_action,
5632 u_int8_t *data_ptr, u_int32_t length,
5633 u_int32_t sense_len, u_int32_t timeout)
5634{
5635 struct scsi_tape_read_position *scmd;
5636
5637 cam_fill_csio(csio,
5638 retries,
5639 cbfcnp,
5640 /*flags*/CAM_DIR_IN,
5641 tag_action,
5642 /*data_ptr*/data_ptr,
5643 /*dxfer_len*/length,
5644 sense_len,
5645 sizeof(*scmd),
5646 timeout);
5647
5648
5649 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
5650 bzero(scmd, sizeof(*scmd));
5651 scmd->opcode = READ_POSITION;
5652 scmd->byte1 = service_action;
5653 /*
5654 * The length is only currently set (as of SSC4r03) if the extended
5655 * form is specified. The other forms have fixed lengths.
5656 */
5657 if (service_action == SA_RPOS_EXTENDED_FORM)
5658 scsi_ulto2b(length, scmd->length);
5659}
5660
5661/*
5662 * Set Tape Position command.
5663 */
5664void
5665scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries,
5666 void (*cbfcnp)(struct cam_periph *, union ccb *),
5667 u_int8_t tag_action, int hardsoft, u_int32_t blkno,
5668 u_int8_t sense_len, u_int32_t timeout)
5669{
5670 struct scsi_tape_locate *scmd;
5671
5672 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
5673 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout);
5674 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
5675 bzero(scmd, sizeof(*scmd));
5676 scmd->opcode = LOCATE;
5677 if (hardsoft)
5678 scmd->byte1 |= SA_SPOS_BT;
5679 scsi_ulto4b(blkno, scmd->blkaddr);
5680}
5681
5682/*
5683 * XXX KDM figure out how to make a compatibility function.
5684 */
5685void
5686scsi_locate_10(struct ccb_scsiio *csio, u_int32_t retries,
5687 void (*cbfcnp)(struct cam_periph *, union ccb *),
5688 u_int8_t tag_action, int immed, int cp, int hard,
5689 int64_t partition, u_int32_t block_address,
5690 int sense_len, u_int32_t timeout)
5691{
5692 struct scsi_tape_locate *scmd;
5693
5694 cam_fill_csio(csio,
5695 retries,
5696 cbfcnp,
5697 CAM_DIR_NONE,
5698 tag_action,
5699 /*data_ptr*/ NULL,
5700 /*dxfer_len*/ 0,
5701 sense_len,
5702 sizeof(*scmd),
5703 timeout);
5704 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
5705 bzero(scmd, sizeof(*scmd));
5706 scmd->opcode = LOCATE;
5707 if (immed)
5708 scmd->byte1 |= SA_SPOS_IMMED;
5709 if (cp)
5710 scmd->byte1 |= SA_SPOS_CP;
5711 if (hard)
5712 scmd->byte1 |= SA_SPOS_BT;
5713 scsi_ulto4b(block_address, scmd->blkaddr);
5714 scmd->partition = partition;
5715}
5716
5717void
5718scsi_locate_16(struct ccb_scsiio *csio, u_int32_t retries,
5719 void (*cbfcnp)(struct cam_periph *, union ccb *),
5720 u_int8_t tag_action, int immed, int cp, u_int8_t dest_type,
5721 int bam, int64_t partition, u_int64_t logical_id,
5722 int sense_len, u_int32_t timeout)
5723{
5724
5725 struct scsi_locate_16 *scsi_cmd;
5726
5727 cam_fill_csio(csio,
5728 retries,
5729 cbfcnp,
5730 /*flags*/CAM_DIR_NONE,
5731 tag_action,
5732 /*data_ptr*/NULL,
5733 /*dxfer_len*/0,
5734 sense_len,
5735 sizeof(*scsi_cmd),
5736 timeout);
5737
5738 scsi_cmd = (struct scsi_locate_16 *)&csio->cdb_io.cdb_bytes;
5739 bzero(scsi_cmd, sizeof(*scsi_cmd));
5740 scsi_cmd->opcode = LOCATE_16;
5741 if (immed)
5742 scsi_cmd->byte1 |= SA_LC_IMMEDIATE;
5743 if (cp)
5744 scsi_cmd->byte1 |= SA_LC_CP;
5745 scsi_cmd->byte1 |= (dest_type << SA_LC_DEST_TYPE_SHIFT);
5746
5747 scsi_cmd->byte2 |= bam;
5748 scsi_cmd->partition = partition;
5749 scsi_u64to8b(logical_id, scsi_cmd->logical_id);
5750}
5751
5752void
5753scsi_report_density_support(struct ccb_scsiio *csio, u_int32_t retries,
5754 void (*cbfcnp)(struct cam_periph *, union ccb *),
5755 u_int8_t tag_action, int media, int medium_type,
5756 u_int8_t *data_ptr, u_int32_t length,
5757 u_int32_t sense_len, u_int32_t timeout)
5758{
5759 struct scsi_report_density_support *scsi_cmd;
5760
5761 scsi_cmd =(struct scsi_report_density_support *)&csio->cdb_io.cdb_bytes;
5762 bzero(scsi_cmd, sizeof(*scsi_cmd));
5763
5764 scsi_cmd->opcode = REPORT_DENSITY_SUPPORT;
5765 if (media != 0)
5766 scsi_cmd->byte1 |= SRDS_MEDIA;
5767 if (medium_type != 0)
5768 scsi_cmd->byte1 |= SRDS_MEDIUM_TYPE;
5769
5770 scsi_ulto2b(length, scsi_cmd->length);
5771
5772 cam_fill_csio(csio,
5773 retries,
5774 cbfcnp,
5775 /*flags*/CAM_DIR_IN,
5776 tag_action,
5777 /*data_ptr*/data_ptr,
5778 /*dxfer_len*/length,
5779 sense_len,
5780 sizeof(*scsi_cmd),
5781 timeout);
5782}
5783
5784void
5785scsi_set_capacity(struct ccb_scsiio *csio, u_int32_t retries,
5786 void (*cbfcnp)(struct cam_periph *, union ccb *),
5787 u_int8_t tag_action, int byte1, u_int32_t proportion,
5788 u_int32_t sense_len, u_int32_t timeout)
5789{
5790 struct scsi_set_capacity *scsi_cmd;
5791
5792 scsi_cmd = (struct scsi_set_capacity *)&csio->cdb_io.cdb_bytes;
5793 bzero(scsi_cmd, sizeof(*scsi_cmd));
5794
5795 scsi_cmd->opcode = SET_CAPACITY;
5796
5797 scsi_cmd->byte1 = byte1;
5798 scsi_ulto2b(proportion, scsi_cmd->cap_proportion);
5799
5800 cam_fill_csio(csio,
5801 retries,
5802 cbfcnp,
5803 /*flags*/CAM_DIR_NONE,
5804 tag_action,
5805 /*data_ptr*/NULL,
5806 /*dxfer_len*/0,
5807 sense_len,
5808 sizeof(*scsi_cmd),
5809 timeout);
5810}
5811
5812void
5813scsi_format_medium(struct ccb_scsiio *csio, u_int32_t retries,
5814 void (*cbfcnp)(struct cam_periph *, union ccb *),
5815 u_int8_t tag_action, int byte1, int byte2,
5816 u_int8_t *data_ptr, u_int32_t dxfer_len,
5817 u_int32_t sense_len, u_int32_t timeout)
5818{
5819 struct scsi_format_medium *scsi_cmd;
5820
5821 scsi_cmd = (struct scsi_format_medium*)&csio->cdb_io.cdb_bytes;
5822 bzero(scsi_cmd, sizeof(*scsi_cmd));
5823
5824 scsi_cmd->opcode = FORMAT_MEDIUM;
5825
5826 scsi_cmd->byte1 = byte1;
5827 scsi_cmd->byte2 = byte2;
5828
5829 scsi_ulto2b(dxfer_len, scsi_cmd->length);
5830
5831 cam_fill_csio(csio,
5832 retries,
5833 cbfcnp,
5834 /*flags*/(dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
5835 tag_action,
5836 /*data_ptr*/ data_ptr,
5837 /*dxfer_len*/ dxfer_len,
5838 sense_len,
5839 sizeof(*scsi_cmd),
5840 timeout);
5841}
5842
5843void
5844scsi_allow_overwrite(struct ccb_scsiio *csio, u_int32_t retries,
5845 void (*cbfcnp)(struct cam_periph *, union ccb *),
5846 u_int8_t tag_action, int allow_overwrite, int partition,
5847 u_int64_t logical_id, u_int32_t sense_len, u_int32_t timeout)
5848{
5849 struct scsi_allow_overwrite *scsi_cmd;
5850
5851 scsi_cmd = (struct scsi_allow_overwrite *)&csio->cdb_io.cdb_bytes;
5852 bzero(scsi_cmd, sizeof(*scsi_cmd));
5853
5854 scsi_cmd->opcode = ALLOW_OVERWRITE;
5855
5856 scsi_cmd->allow_overwrite = allow_overwrite;
5857 scsi_cmd->partition = partition;
5858 scsi_u64to8b(logical_id, scsi_cmd->logical_id);
5859
5860 cam_fill_csio(csio,
5861 retries,
5862 cbfcnp,
5863 CAM_DIR_NONE,
5864 tag_action,
5865 /*data_ptr*/ NULL,
5866 /*dxfer_len*/ 0,
5867 sense_len,
5868 sizeof(*scsi_cmd),
5869 timeout);
5870}
| 2543
2544 cam_periph_lock(periph);
2545
2546 softc->density_type_bits[0] = 0;
2547 softc->density_type_bits[1] = SRDS_MEDIA;
2548 softc->density_type_bits[2] = SRDS_MEDIUM_TYPE;
2549 softc->density_type_bits[3] = SRDS_MEDIUM_TYPE | SRDS_MEDIA;
2550 /*
2551 * Bump the peripheral refcount for the sysctl thread, in case we
2552 * get invalidated before the thread has a chance to run.
2553 */
2554 cam_periph_acquire(periph);
2555 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task);
2556
2557 /*
2558 * Add an async callback so that we get
2559 * notified if this device goes away.
2560 */
2561 xpt_register_async(AC_LOST_DEVICE, saasync, periph, periph->path);
2562
2563 xpt_announce_periph(periph, NULL);
2564 xpt_announce_quirks(periph, softc->quirks, SA_QUIRK_BIT_STRING);
2565
2566 return (CAM_REQ_CMP);
2567}
2568
2569static void
2570sastart(struct cam_periph *periph, union ccb *start_ccb)
2571{
2572 struct sa_softc *softc;
2573
2574 softc = (struct sa_softc *)periph->softc;
2575
2576 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n"));
2577
2578
2579 switch (softc->state) {
2580 case SA_STATE_NORMAL:
2581 {
2582 /* Pull a buffer from the queue and get going on it */
2583 struct bio *bp;
2584
2585 /*
2586 * See if there is a buf with work for us to do..
2587 */
2588 bp = bioq_first(&softc->bio_queue);
2589 if (bp == NULL) {
2590 xpt_release_ccb(start_ccb);
2591 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) {
2592 struct bio *done_bp;
2593again:
2594 softc->queue_count--;
2595 bioq_remove(&softc->bio_queue, bp);
2596 bp->bio_resid = bp->bio_bcount;
2597 done_bp = bp;
2598 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) {
2599 /*
2600 * We have two different behaviors for
2601 * writes when we hit either Early Warning
2602 * or the PEWZ (Programmable Early Warning
2603 * Zone). The default behavior is that
2604 * for all writes that are currently
2605 * queued after the write where we saw the
2606 * early warning, we will return the write
2607 * with the residual equal to the count.
2608 * i.e. tell the application that 0 bytes
2609 * were written.
2610 *
2611 * The alternate behavior, which is enabled
2612 * when eot_warn is set, is that in
2613 * addition to setting the residual equal
2614 * to the count, we will set the error
2615 * to ENOSPC.
2616 *
2617 * In either case, once queued writes are
2618 * cleared out, we clear the error flag
2619 * (see below) and the application is free to
2620 * attempt to write more.
2621 */
2622 if (softc->eot_warn != 0) {
2623 bp->bio_flags |= BIO_ERROR;
2624 bp->bio_error = ENOSPC;
2625 } else
2626 bp->bio_error = 0;
2627 } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) {
2628 /*
2629 * This can only happen if we're reading
2630 * in fixed length mode. In this case,
2631 * we dump the rest of the list the
2632 * same way.
2633 */
2634 bp->bio_error = 0;
2635 if (bioq_first(&softc->bio_queue) != NULL) {
2636 biodone(done_bp);
2637 goto again;
2638 }
2639 } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) {
2640 bp->bio_error = EIO;
2641 bp->bio_flags |= BIO_ERROR;
2642 }
2643 bp = bioq_first(&softc->bio_queue);
2644 /*
2645 * Only if we have no other buffers queued up
2646 * do we clear the pending error flag.
2647 */
2648 if (bp == NULL)
2649 softc->flags &= ~SA_FLAG_ERR_PENDING;
2650 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
2651 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, "
2652 "%d more buffers queued up\n",
2653 (softc->flags & SA_FLAG_ERR_PENDING),
2654 (bp != NULL)? "not " : " ", softc->queue_count));
2655 xpt_release_ccb(start_ccb);
2656 biodone(done_bp);
2657 } else {
2658 u_int32_t length;
2659
2660 bioq_remove(&softc->bio_queue, bp);
2661 softc->queue_count--;
2662
2663 length = bp->bio_bcount;
2664
2665 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2666 if (softc->blk_shift != 0) {
2667 length = length >> softc->blk_shift;
2668 } else if (softc->media_blksize != 0) {
2669 length = length / softc->media_blksize;
2670 } else {
2671 bp->bio_error = EIO;
2672 xpt_print(periph->path, "zero blocksize"
2673 " for FIXED length writes?\n");
2674 biodone(bp);
2675 break;
2676 }
2677#if 0
2678 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
2679 ("issuing a %d fixed record %s\n",
2680 length, (bp->bio_cmd == BIO_READ)? "read" :
2681 "write"));
2682#endif
2683 } else {
2684#if 0
2685 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
2686 ("issuing a %d variable byte %s\n",
2687 length, (bp->bio_cmd == BIO_READ)? "read" :
2688 "write"));
2689#endif
2690 }
2691 devstat_start_transaction_bio(softc->device_stats, bp);
2692 /*
2693 * Some people have theorized that we should
2694 * suppress illegal length indication if we are
2695 * running in variable block mode so that we don't
2696 * have to request sense every time our requested
2697 * block size is larger than the written block.
2698 * The residual information from the ccb allows
2699 * us to identify this situation anyway. The only
2700 * problem with this is that we will not get
2701 * information about blocks that are larger than
2702 * our read buffer unless we set the block size
2703 * in the mode page to something other than 0.
2704 *
2705 * I believe that this is a non-issue. If user apps
2706 * don't adjust their read size to match our record
2707 * size, that's just life. Anyway, the typical usage
2708 * would be to issue, e.g., 64KB reads and occasionally
2709 * have to do deal with 512 byte or 1KB intermediate
2710 * records.
2711 *
2712 * That said, though, we now support setting the
2713 * SILI bit on reads, and we set the blocksize to 4
2714 * bytes when we do that. This gives us
2715 * compatibility with software that wants this,
2716 * although the only real difference between that
2717 * and not setting the SILI bit on reads is that we
2718 * won't get a check condition on reads where our
2719 * request size is larger than the block on tape.
2720 * That probably only makes a real difference in
2721 * non-packetized SCSI, where you have to go back
2722 * to the drive to request sense and thus incur
2723 * more latency.
2724 */
2725 softc->dsreg = (bp->bio_cmd == BIO_READ)?
2726 MTIO_DSREG_RD : MTIO_DSREG_WR;
2727 scsi_sa_read_write(&start_ccb->csio, 0, sadone,
2728 MSG_SIMPLE_Q_TAG, (bp->bio_cmd == BIO_READ ?
2729 SCSI_RW_READ : SCSI_RW_WRITE) |
2730 ((bp->bio_flags & BIO_UNMAPPED) != 0 ?
2731 SCSI_RW_BIO : 0), softc->sili,
2732 (softc->flags & SA_FLAG_FIXED) != 0, length,
2733 (bp->bio_flags & BIO_UNMAPPED) != 0 ? (void *)bp :
2734 bp->bio_data, bp->bio_bcount, SSD_FULL_SIZE,
2735 IO_TIMEOUT);
2736 start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED;
2737 start_ccb->ccb_h.ccb_bp = bp;
2738 bp = bioq_first(&softc->bio_queue);
2739 xpt_action(start_ccb);
2740 }
2741
2742 if (bp != NULL) {
2743 /* Have more work to do, so ensure we stay scheduled */
2744 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
2745 }
2746 break;
2747 }
2748 case SA_STATE_ABNORMAL:
2749 default:
2750 panic("state 0x%x in sastart", softc->state);
2751 break;
2752 }
2753}
2754
2755
2756static void
2757sadone(struct cam_periph *periph, union ccb *done_ccb)
2758{
2759 struct sa_softc *softc;
2760 struct ccb_scsiio *csio;
2761 struct bio *bp;
2762 int error;
2763
2764 softc = (struct sa_softc *)periph->softc;
2765 csio = &done_ccb->csio;
2766
2767 softc->dsreg = MTIO_DSREG_REST;
2768 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2769 error = 0;
2770 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2771 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) {
2772 /*
2773 * A retry was scheduled, so just return.
2774 */
2775 return;
2776 }
2777 }
2778
2779 if (error == EIO) {
2780
2781 /*
2782 * Catastrophic error. Mark the tape as frozen
2783 * (we no longer know tape position).
2784 *
2785 * Return all queued I/O with EIO, and unfreeze
2786 * our queue so that future transactions that
2787 * attempt to fix this problem can get to the
2788 * device.
2789 *
2790 */
2791
2792 softc->flags |= SA_FLAG_TAPE_FROZEN;
2793 bioq_flush(&softc->bio_queue, NULL, EIO);
2794 }
2795 if (error != 0) {
2796 bp->bio_resid = bp->bio_bcount;
2797 bp->bio_error = error;
2798 bp->bio_flags |= BIO_ERROR;
2799 /*
2800 * In the error case, position is updated in saerror.
2801 */
2802 } else {
2803 bp->bio_resid = csio->resid;
2804 bp->bio_error = 0;
2805 if (csio->resid != 0) {
2806 bp->bio_flags |= BIO_ERROR;
2807 }
2808 if (bp->bio_cmd == BIO_WRITE) {
2809 softc->flags |= SA_FLAG_TAPE_WRITTEN;
2810 softc->filemarks = 0;
2811 }
2812 if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) &&
2813 (softc->blkno != (daddr_t) -1)) {
2814 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2815 u_int32_t l;
2816 if (softc->blk_shift != 0) {
2817 l = bp->bio_bcount >>
2818 softc->blk_shift;
2819 } else {
2820 l = bp->bio_bcount /
2821 softc->media_blksize;
2822 }
2823 softc->blkno += (daddr_t) l;
2824 } else {
2825 softc->blkno++;
2826 }
2827 }
2828 }
2829 /*
2830 * If we had an error (immediate or pending),
2831 * release the device queue now.
2832 */
2833 if (error || (softc->flags & SA_FLAG_ERR_PENDING))
2834 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0);
2835 if (error || bp->bio_resid) {
2836 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
2837 ("error %d resid %ld count %ld\n", error,
2838 bp->bio_resid, bp->bio_bcount));
2839 }
2840 biofinish(bp, softc->device_stats, 0);
2841 xpt_release_ccb(done_ccb);
2842}
2843
2844/*
2845 * Mount the tape (make sure it's ready for I/O).
2846 */
2847static int
2848samount(struct cam_periph *periph, int oflags, struct cdev *dev)
2849{
2850 struct sa_softc *softc;
2851 union ccb *ccb;
2852 int error;
2853
2854 /*
2855 * oflags can be checked for 'kind' of open (read-only check) - later
2856 * dev can be checked for a control-mode or compression open - later
2857 */
2858 UNUSED_PARAMETER(oflags);
2859 UNUSED_PARAMETER(dev);
2860
2861
2862 softc = (struct sa_softc *)periph->softc;
2863
2864 /*
2865 * This should determine if something has happend since the last
2866 * open/mount that would invalidate the mount. We do *not* want
2867 * to retry this command- we just want the status. But we only
2868 * do this if we're mounted already- if we're not mounted,
2869 * we don't care about the unit read state and can instead use
2870 * this opportunity to attempt to reserve the tape unit.
2871 */
2872
2873 if (softc->flags & SA_FLAG_TAPE_MOUNTED) {
2874 ccb = cam_periph_getccb(periph, 1);
2875 scsi_test_unit_ready(&ccb->csio, 0, sadone,
2876 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
2877 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2878 softc->device_stats);
2879 if (error == ENXIO) {
2880 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
2881 scsi_test_unit_ready(&ccb->csio, 0, sadone,
2882 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
2883 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2884 softc->device_stats);
2885 } else if (error) {
2886 /*
2887 * We don't need to freeze the tape because we
2888 * will now attempt to rewind/load it.
2889 */
2890 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
2891 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2892 xpt_print(periph->path,
2893 "error %d on TUR in samount\n", error);
2894 }
2895 }
2896 } else {
2897 error = sareservereleaseunit(periph, TRUE);
2898 if (error) {
2899 return (error);
2900 }
2901 ccb = cam_periph_getccb(periph, 1);
2902 scsi_test_unit_ready(&ccb->csio, 0, sadone,
2903 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
2904 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2905 softc->device_stats);
2906 }
2907
2908 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
2909 struct scsi_read_block_limits_data *rblim = NULL;
2910 int comp_enabled, comp_supported;
2911 u_int8_t write_protect, guessing = 0;
2912
2913 /*
2914 * Clear out old state.
2915 */
2916 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN|
2917 SA_FLAG_ERR_PENDING|SA_FLAG_COMPRESSION);
2918 softc->filemarks = 0;
2919
2920 /*
2921 * *Very* first off, make sure we're loaded to BOT.
2922 */
2923 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2924 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT);
2925 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2926 softc->device_stats);
2927
2928 /*
2929 * In case this doesn't work, do a REWIND instead
2930 */
2931 if (error) {
2932 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
2933 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
2934 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2935 softc->device_stats);
2936 }
2937 if (error) {
2938 xpt_release_ccb(ccb);
2939 goto exit;
2940 }
2941
2942 /*
2943 * Do a dummy test read to force access to the
2944 * media so that the drive will really know what's
2945 * there. We actually don't really care what the
2946 * blocksize on tape is and don't expect to really
2947 * read a full record.
2948 */
2949 rblim = (struct scsi_read_block_limits_data *)
2950 malloc(8192, M_SCSISA, M_NOWAIT);
2951 if (rblim == NULL) {
2952 xpt_print(periph->path, "no memory for test read\n");
2953 xpt_release_ccb(ccb);
2954 error = ENOMEM;
2955 goto exit;
2956 }
2957
2958 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
2959 scsi_sa_read_write(&ccb->csio, 0, sadone,
2960 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
2961 (void *) rblim, 8192, SSD_FULL_SIZE,
2962 IO_TIMEOUT);
2963 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2964 softc->device_stats);
2965 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
2966 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
2967 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
2968 SF_NO_PRINT | SF_RETRY_UA,
2969 softc->device_stats);
2970 if (error) {
2971 xpt_print(periph->path,
2972 "unable to rewind after test read\n");
2973 xpt_release_ccb(ccb);
2974 goto exit;
2975 }
2976 }
2977
2978 /*
2979 * Next off, determine block limits.
2980 */
2981 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
2982 rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
2983
2984 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
2985 SF_NO_PRINT | SF_RETRY_UA, softc->device_stats);
2986
2987 xpt_release_ccb(ccb);
2988
2989 if (error != 0) {
2990 /*
2991 * If it's less than SCSI-2, READ BLOCK LIMITS is not
2992 * a MANDATORY command. Anyway- it doesn't matter-
2993 * we can proceed anyway.
2994 */
2995 softc->blk_gran = 0;
2996 softc->max_blk = ~0;
2997 softc->min_blk = 0;
2998 } else {
2999 if (softc->scsi_rev >= SCSI_REV_SPC) {
3000 softc->blk_gran = RBL_GRAN(rblim);
3001 } else {
3002 softc->blk_gran = 0;
3003 }
3004 /*
3005 * We take max_blk == min_blk to mean a default to
3006 * fixed mode- but note that whatever we get out of
3007 * sagetparams below will actually determine whether
3008 * we are actually *in* fixed mode.
3009 */
3010 softc->max_blk = scsi_3btoul(rblim->maximum);
3011 softc->min_blk = scsi_2btoul(rblim->minimum);
3012
3013
3014 }
3015 /*
3016 * Next, perform a mode sense to determine
3017 * current density, blocksize, compression etc.
3018 */
3019 error = sagetparams(periph, SA_PARAM_ALL,
3020 &softc->media_blksize,
3021 &softc->media_density,
3022 &softc->media_numblks,
3023 &softc->buffer_mode, &write_protect,
3024 &softc->speed, &comp_supported,
3025 &comp_enabled, &softc->comp_algorithm,
3026 NULL, NULL, 0, 0);
3027
3028 if (error != 0) {
3029 /*
3030 * We could work a little harder here. We could
3031 * adjust our attempts to get information. It
3032 * might be an ancient tape drive. If someone
3033 * nudges us, we'll do that.
3034 */
3035 goto exit;
3036 }
3037
3038 /*
3039 * If no quirk has determined that this is a device that is
3040 * preferred to be in fixed or variable mode, now is the time
3041 * to find out.
3042 */
3043 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) {
3044 guessing = 1;
3045 /*
3046 * This could be expensive to find out. Luckily we
3047 * only need to do this once. If we start out in
3048 * 'default' mode, try and set ourselves to one
3049 * of the densities that would determine a wad
3050 * of other stuff. Go from highest to lowest.
3051 */
3052 if (softc->media_density == SCSI_DEFAULT_DENSITY) {
3053 int i;
3054 static u_int8_t ctry[] = {
3055 SCSI_DENSITY_HALFINCH_PE,
3056 SCSI_DENSITY_HALFINCH_6250C,
3057 SCSI_DENSITY_HALFINCH_6250,
3058 SCSI_DENSITY_HALFINCH_1600,
3059 SCSI_DENSITY_HALFINCH_800,
3060 SCSI_DENSITY_QIC_4GB,
3061 SCSI_DENSITY_QIC_2GB,
3062 SCSI_DENSITY_QIC_525_320,
3063 SCSI_DENSITY_QIC_150,
3064 SCSI_DENSITY_QIC_120,
3065 SCSI_DENSITY_QIC_24,
3066 SCSI_DENSITY_QIC_11_9TRK,
3067 SCSI_DENSITY_QIC_11_4TRK,
3068 SCSI_DENSITY_QIC_1320,
3069 SCSI_DENSITY_QIC_3080,
3070 0
3071 };
3072 for (i = 0; ctry[i]; i++) {
3073 error = sasetparams(periph,
3074 SA_PARAM_DENSITY, 0, ctry[i],
3075 0, SF_NO_PRINT);
3076 if (error == 0) {
3077 softc->media_density = ctry[i];
3078 break;
3079 }
3080 }
3081 }
3082 switch (softc->media_density) {
3083 case SCSI_DENSITY_QIC_11_4TRK:
3084 case SCSI_DENSITY_QIC_11_9TRK:
3085 case SCSI_DENSITY_QIC_24:
3086 case SCSI_DENSITY_QIC_120:
3087 case SCSI_DENSITY_QIC_150:
3088 case SCSI_DENSITY_QIC_525_320:
3089 case SCSI_DENSITY_QIC_1320:
3090 case SCSI_DENSITY_QIC_3080:
3091 softc->quirks &= ~SA_QUIRK_2FM;
3092 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
3093 softc->last_media_blksize = 512;
3094 break;
3095 case SCSI_DENSITY_QIC_4GB:
3096 case SCSI_DENSITY_QIC_2GB:
3097 softc->quirks &= ~SA_QUIRK_2FM;
3098 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
3099 softc->last_media_blksize = 1024;
3100 break;
3101 default:
3102 softc->last_media_blksize =
3103 softc->media_blksize;
3104 softc->quirks |= SA_QUIRK_VARIABLE;
3105 break;
3106 }
3107 }
3108
3109 /*
3110 * If no quirk has determined that this is a device that needs
3111 * to have 2 Filemarks at EOD, now is the time to find out.
3112 */
3113
3114 if ((softc->quirks & SA_QUIRK_2FM) == 0) {
3115 switch (softc->media_density) {
3116 case SCSI_DENSITY_HALFINCH_800:
3117 case SCSI_DENSITY_HALFINCH_1600:
3118 case SCSI_DENSITY_HALFINCH_6250:
3119 case SCSI_DENSITY_HALFINCH_6250C:
3120 case SCSI_DENSITY_HALFINCH_PE:
3121 softc->quirks &= ~SA_QUIRK_1FM;
3122 softc->quirks |= SA_QUIRK_2FM;
3123 break;
3124 default:
3125 break;
3126 }
3127 }
3128
3129 /*
3130 * Now validate that some info we got makes sense.
3131 */
3132 if ((softc->max_blk < softc->media_blksize) ||
3133 (softc->min_blk > softc->media_blksize &&
3134 softc->media_blksize)) {
3135 xpt_print(periph->path,
3136 "BLOCK LIMITS (%d..%d) could not match current "
3137 "block settings (%d)- adjusting\n", softc->min_blk,
3138 softc->max_blk, softc->media_blksize);
3139 softc->max_blk = softc->min_blk =
3140 softc->media_blksize;
3141 }
3142
3143 /*
3144 * Now put ourselves into the right frame of mind based
3145 * upon quirks...
3146 */
3147tryagain:
3148 /*
3149 * If we want to be in FIXED mode and our current blocksize
3150 * is not equal to our last blocksize (if nonzero), try and
3151 * set ourselves to this last blocksize (as the 'preferred'
3152 * block size). The initial quirkmatch at registry sets the
3153 * initial 'last' blocksize. If, for whatever reason, this
3154 * 'last' blocksize is zero, set the blocksize to 512,
3155 * or min_blk if that's larger.
3156 */
3157 if ((softc->quirks & SA_QUIRK_FIXED) &&
3158 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 &&
3159 (softc->media_blksize != softc->last_media_blksize)) {
3160 softc->media_blksize = softc->last_media_blksize;
3161 if (softc->media_blksize == 0) {
3162 softc->media_blksize = 512;
3163 if (softc->media_blksize < softc->min_blk) {
3164 softc->media_blksize = softc->min_blk;
3165 }
3166 }
3167 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
3168 softc->media_blksize, 0, 0, SF_NO_PRINT);
3169 if (error) {
3170 xpt_print(periph->path,
3171 "unable to set fixed blocksize to %d\n",
3172 softc->media_blksize);
3173 goto exit;
3174 }
3175 }
3176
3177 if ((softc->quirks & SA_QUIRK_VARIABLE) &&
3178 (softc->media_blksize != 0)) {
3179 softc->last_media_blksize = softc->media_blksize;
3180 softc->media_blksize = 0;
3181 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
3182 0, 0, 0, SF_NO_PRINT);
3183 if (error) {
3184 /*
3185 * If this fails and we were guessing, just
3186 * assume that we got it wrong and go try
3187 * fixed block mode. Don't even check against
3188 * density code at this point.
3189 */
3190 if (guessing) {
3191 softc->quirks &= ~SA_QUIRK_VARIABLE;
3192 softc->quirks |= SA_QUIRK_FIXED;
3193 if (softc->last_media_blksize == 0)
3194 softc->last_media_blksize = 512;
3195 goto tryagain;
3196 }
3197 xpt_print(periph->path,
3198 "unable to set variable blocksize\n");
3199 goto exit;
3200 }
3201 }
3202
3203 /*
3204 * Now that we have the current block size,
3205 * set up some parameters for sastart's usage.
3206 */
3207 if (softc->media_blksize) {
3208 softc->flags |= SA_FLAG_FIXED;
3209 if (powerof2(softc->media_blksize)) {
3210 softc->blk_shift =
3211 ffs(softc->media_blksize) - 1;
3212 softc->blk_mask = softc->media_blksize - 1;
3213 } else {
3214 softc->blk_mask = ~0;
3215 softc->blk_shift = 0;
3216 }
3217 } else {
3218 /*
3219 * The SCSI-3 spec allows 0 to mean "unspecified".
3220 * The SCSI-1 spec allows 0 to mean 'infinite'.
3221 *
3222 * Either works here.
3223 */
3224 if (softc->max_blk == 0) {
3225 softc->max_blk = ~0;
3226 }
3227 softc->blk_shift = 0;
3228 if (softc->blk_gran != 0) {
3229 softc->blk_mask = softc->blk_gran - 1;
3230 } else {
3231 softc->blk_mask = 0;
3232 }
3233 }
3234
3235 if (write_protect)
3236 softc->flags |= SA_FLAG_TAPE_WP;
3237
3238 if (comp_supported) {
3239 if (softc->saved_comp_algorithm == 0)
3240 softc->saved_comp_algorithm =
3241 softc->comp_algorithm;
3242 softc->flags |= SA_FLAG_COMP_SUPP;
3243 if (comp_enabled)
3244 softc->flags |= SA_FLAG_COMP_ENABLED;
3245 } else
3246 softc->flags |= SA_FLAG_COMP_UNSUPP;
3247
3248 if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) &&
3249 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) {
3250 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0,
3251 0, 0, SF_NO_PRINT);
3252 if (error == 0) {
3253 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF;
3254 } else {
3255 xpt_print(periph->path,
3256 "unable to set buffered mode\n");
3257 }
3258 error = 0; /* not an error */
3259 }
3260
3261
3262 if (error == 0) {
3263 softc->flags |= SA_FLAG_TAPE_MOUNTED;
3264 }
3265exit:
3266 if (rblim != NULL)
3267 free(rblim, M_SCSISA);
3268
3269 if (error != 0) {
3270 softc->dsreg = MTIO_DSREG_NIL;
3271 } else {
3272 softc->fileno = softc->blkno = 0;
3273 softc->rep_fileno = softc->rep_blkno = -1;
3274 softc->partition = 0;
3275 softc->dsreg = MTIO_DSREG_REST;
3276 }
3277#ifdef SA_1FM_AT_EOD
3278 if ((softc->quirks & SA_QUIRK_2FM) == 0)
3279 softc->quirks |= SA_QUIRK_1FM;
3280#else
3281 if ((softc->quirks & SA_QUIRK_1FM) == 0)
3282 softc->quirks |= SA_QUIRK_2FM;
3283#endif
3284 } else
3285 xpt_release_ccb(ccb);
3286
3287 /*
3288 * If we return an error, we're not mounted any more,
3289 * so release any device reservation.
3290 */
3291 if (error != 0) {
3292 (void) sareservereleaseunit(periph, FALSE);
3293 } else {
3294 /*
3295 * Clear I/O residual.
3296 */
3297 softc->last_io_resid = 0;
3298 softc->last_ctl_resid = 0;
3299 }
3300 return (error);
3301}
3302
3303/*
3304 * How many filemarks do we need to write if we were to terminate the
3305 * tape session right now? Note that this can be a negative number
3306 */
3307
3308static int
3309samarkswanted(struct cam_periph *periph)
3310{
3311 int markswanted;
3312 struct sa_softc *softc;
3313
3314 softc = (struct sa_softc *)periph->softc;
3315 markswanted = 0;
3316 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) {
3317 markswanted++;
3318 if (softc->quirks & SA_QUIRK_2FM)
3319 markswanted++;
3320 }
3321 markswanted -= softc->filemarks;
3322 return (markswanted);
3323}
3324
3325static int
3326sacheckeod(struct cam_periph *periph)
3327{
3328 int error;
3329 int markswanted;
3330
3331 markswanted = samarkswanted(periph);
3332
3333 if (markswanted > 0) {
3334 error = sawritefilemarks(periph, markswanted, FALSE, FALSE);
3335 } else {
3336 error = 0;
3337 }
3338 return (error);
3339}
3340
3341static int
3342saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs)
3343{
3344 static const char *toobig =
3345 "%d-byte tape record bigger than supplied buffer\n";
3346 struct cam_periph *periph;
3347 struct sa_softc *softc;
3348 struct ccb_scsiio *csio;
3349 struct scsi_sense_data *sense;
3350 uint64_t resid = 0;
3351 int64_t info = 0;
3352 cam_status status;
3353 int error_code, sense_key, asc, ascq, error, aqvalid, stream_valid;
3354 int sense_len;
3355 uint8_t stream_bits;
3356
3357 periph = xpt_path_periph(ccb->ccb_h.path);
3358 softc = (struct sa_softc *)periph->softc;
3359 csio = &ccb->csio;
3360 sense = &csio->sense_data;
3361 sense_len = csio->sense_len - csio->sense_resid;
3362 scsi_extract_sense_len(sense, sense_len, &error_code, &sense_key,
3363 &asc, &ascq, /*show_errors*/ 1);
3364 if (asc != -1 && ascq != -1)
3365 aqvalid = 1;
3366 else
3367 aqvalid = 0;
3368 if (scsi_get_stream_info(sense, sense_len, NULL, &stream_bits) == 0)
3369 stream_valid = 1;
3370 else
3371 stream_valid = 0;
3372 error = 0;
3373
3374 status = csio->ccb_h.status & CAM_STATUS_MASK;
3375
3376 /*
3377 * Calculate/latch up, any residuals... We do this in a funny 2-step
3378 * so we can print stuff here if we have CAM_DEBUG enabled for this
3379 * unit.
3380 */
3381 if (status == CAM_SCSI_STATUS_ERROR) {
3382 if (scsi_get_sense_info(sense, sense_len, SSD_DESC_INFO, &resid,
3383 &info) == 0) {
3384 if ((softc->flags & SA_FLAG_FIXED) != 0)
3385 resid *= softc->media_blksize;
3386 } else {
3387 resid = csio->dxfer_len;
3388 info = resid;
3389 if ((softc->flags & SA_FLAG_FIXED) != 0) {
3390 if (softc->media_blksize)
3391 info /= softc->media_blksize;
3392 }
3393 }
3394 if (csio->cdb_io.cdb_bytes[0] == SA_READ ||
3395 csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
3396 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense,
3397 sizeof (struct scsi_sense_data));
3398 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb,
3399 (int) csio->cdb_len);
3400 softc->last_io_resid = resid;
3401 softc->last_resid_was_io = 1;
3402 } else {
3403 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense,
3404 sizeof (struct scsi_sense_data));
3405 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb,
3406 (int) csio->cdb_len);
3407 softc->last_ctl_resid = resid;
3408 softc->last_resid_was_io = 0;
3409 }
3410 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x "
3411 "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %jd "
3412 "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff,
3413 sense_key, asc, ascq, status,
3414 (stream_valid) ? stream_bits : 0, (intmax_t)resid,
3415 csio->dxfer_len));
3416 } else {
3417 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
3418 ("Cam Status 0x%x\n", status));
3419 }
3420
3421 switch (status) {
3422 case CAM_REQ_CMP:
3423 return (0);
3424 case CAM_SCSI_STATUS_ERROR:
3425 /*
3426 * If a read/write command, we handle it here.
3427 */
3428 if (csio->cdb_io.cdb_bytes[0] == SA_READ ||
3429 csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
3430 break;
3431 }
3432 /*
3433 * If this was just EOM/EOP, Filemark, Setmark or ILI detected
3434 * on a non read/write command, we assume it's not an error
3435 * and propagate the residule and return.
3436 */
3437 if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) ||
3438 (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) {
3439 csio->resid = resid;
3440 QFRLS(ccb);
3441 return (0);
3442 }
3443 /*
3444 * Otherwise, we let the common code handle this.
3445 */
3446 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
3447
3448 /*
3449 * XXX: To Be Fixed
3450 * We cannot depend upon CAM honoring retry counts for these.
3451 */
3452 case CAM_SCSI_BUS_RESET:
3453 case CAM_BDR_SENT:
3454 if (ccb->ccb_h.retry_count <= 0) {
3455 return (EIO);
3456 }
3457 /* FALLTHROUGH */
3458 default:
3459 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
3460 }
3461
3462 /*
3463 * Handle filemark, end of tape, mismatched record sizes....
3464 * From this point out, we're only handling read/write cases.
3465 * Handle writes && reads differently.
3466 */
3467
3468 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
3469 if (sense_key == SSD_KEY_VOLUME_OVERFLOW) {
3470 csio->resid = resid;
3471 error = ENOSPC;
3472 } else if ((stream_valid != 0) && (stream_bits & SSD_EOM)) {
3473 softc->flags |= SA_FLAG_EOM_PENDING;
3474 /*
3475 * Grotesque as it seems, the few times
3476 * I've actually seen a non-zero resid,
3477 * the tape drive actually lied and had
3478 * written all the data!.
3479 */
3480 csio->resid = 0;
3481 }
3482 } else {
3483 csio->resid = resid;
3484 if (sense_key == SSD_KEY_BLANK_CHECK) {
3485 if (softc->quirks & SA_QUIRK_1FM) {
3486 error = 0;
3487 softc->flags |= SA_FLAG_EOM_PENDING;
3488 } else {
3489 error = EIO;
3490 }
3491 } else if ((stream_valid != 0) && (stream_bits & SSD_FILEMARK)){
3492 if (softc->flags & SA_FLAG_FIXED) {
3493 error = -1;
3494 softc->flags |= SA_FLAG_EOF_PENDING;
3495 }
3496 /*
3497 * Unconditionally, if we detected a filemark on a read,
3498 * mark that we've run moved a file ahead.
3499 */
3500 if (softc->fileno != (daddr_t) -1) {
3501 softc->fileno++;
3502 softc->blkno = 0;
3503 csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED;
3504 }
3505 }
3506 }
3507
3508 /*
3509 * Incorrect Length usually applies to read, but can apply to writes.
3510 */
3511 if (error == 0 && (stream_valid != 0) && (stream_bits & SSD_ILI)) {
3512 if (info < 0) {
3513 xpt_print(csio->ccb_h.path, toobig,
3514 csio->dxfer_len - info);
3515 csio->resid = csio->dxfer_len;
3516 error = EIO;
3517 } else {
3518 csio->resid = resid;
3519 if (softc->flags & SA_FLAG_FIXED) {
3520 softc->flags |= SA_FLAG_EIO_PENDING;
3521 }
3522 /*
3523 * Bump the block number if we hadn't seen a filemark.
3524 * Do this independent of errors (we've moved anyway).
3525 */
3526 if ((stream_valid == 0) ||
3527 (stream_bits & SSD_FILEMARK) == 0) {
3528 if (softc->blkno != (daddr_t) -1) {
3529 softc->blkno++;
3530 csio->ccb_h.ccb_pflags |=
3531 SA_POSITION_UPDATED;
3532 }
3533 }
3534 }
3535 }
3536
3537 if (error <= 0) {
3538 /*
3539 * Unfreeze the queue if frozen as we're not returning anything
3540 * to our waiters that would indicate an I/O error has occurred
3541 * (yet).
3542 */
3543 QFRLS(ccb);
3544 error = 0;
3545 }
3546 return (error);
3547}
3548
3549static int
3550sagetparams(struct cam_periph *periph, sa_params params_to_get,
3551 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks,
3552 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed,
3553 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm,
3554 sa_comp_t *tcs, struct scsi_control_data_prot_subpage *prot_page,
3555 int dp_size, int prot_changeable)
3556{
3557 union ccb *ccb;
3558 void *mode_buffer;
3559 struct scsi_mode_header_6 *mode_hdr;
3560 struct scsi_mode_blk_desc *mode_blk;
3561 int mode_buffer_len;
3562 struct sa_softc *softc;
3563 u_int8_t cpage;
3564 int error;
3565 cam_status status;
3566
3567 softc = (struct sa_softc *)periph->softc;
3568 ccb = cam_periph_getccb(periph, 1);
3569 if (softc->quirks & SA_QUIRK_NO_CPAGE)
3570 cpage = SA_DEVICE_CONFIGURATION_PAGE;
3571 else
3572 cpage = SA_DATA_COMPRESSION_PAGE;
3573
3574retry:
3575 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
3576
3577 if (params_to_get & SA_PARAM_COMPRESSION) {
3578 if (softc->quirks & SA_QUIRK_NOCOMP) {
3579 *comp_supported = FALSE;
3580 params_to_get &= ~SA_PARAM_COMPRESSION;
3581 } else
3582 mode_buffer_len += sizeof (sa_comp_t);
3583 }
3584
3585 /* XXX Fix M_NOWAIT */
3586 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO);
3587 if (mode_buffer == NULL) {
3588 xpt_release_ccb(ccb);
3589 return (ENOMEM);
3590 }
3591 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
3592 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
3593
3594 /* it is safe to retry this */
3595 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3596 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ?
3597 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len,
3598 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
3599
3600 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3601 softc->device_stats);
3602
3603 status = ccb->ccb_h.status & CAM_STATUS_MASK;
3604
3605 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) {
3606 /*
3607 * Hmm. Let's see if we can try another page...
3608 * If we've already done that, give up on compression
3609 * for this device and remember this for the future
3610 * and attempt the request without asking for compression
3611 * info.
3612 */
3613 if (cpage == SA_DATA_COMPRESSION_PAGE) {
3614 cpage = SA_DEVICE_CONFIGURATION_PAGE;
3615 goto retry;
3616 }
3617 softc->quirks |= SA_QUIRK_NOCOMP;
3618 free(mode_buffer, M_SCSISA);
3619 goto retry;
3620 } else if (status == CAM_SCSI_STATUS_ERROR) {
3621 /* Tell the user about the fatal error. */
3622 scsi_sense_print(&ccb->csio);
3623 goto sagetparamsexit;
3624 }
3625
3626 /*
3627 * If the user only wants the compression information, and
3628 * the device doesn't send back the block descriptor, it's
3629 * no big deal. If the user wants more than just
3630 * compression, though, and the device doesn't pass back the
3631 * block descriptor, we need to send another mode sense to
3632 * get the block descriptor.
3633 */
3634 if ((mode_hdr->blk_desc_len == 0) &&
3635 (params_to_get & SA_PARAM_COMPRESSION) &&
3636 (params_to_get & ~(SA_PARAM_COMPRESSION))) {
3637
3638 /*
3639 * Decrease the mode buffer length by the size of
3640 * the compression page, to make sure the data
3641 * there doesn't get overwritten.
3642 */
3643 mode_buffer_len -= sizeof (sa_comp_t);
3644
3645 /*
3646 * Now move the compression page that we presumably
3647 * got back down the memory chunk a little bit so
3648 * it doesn't get spammed.
3649 */
3650 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t));
3651 bzero(&mode_hdr[0], sizeof (mode_hdr[0]));
3652
3653 /*
3654 * Now, we issue another mode sense and just ask
3655 * for the block descriptor, etc.
3656 */
3657
3658 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3659 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE,
3660 mode_buffer, mode_buffer_len, SSD_FULL_SIZE,
3661 SCSIOP_TIMEOUT);
3662
3663 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3664 softc->device_stats);
3665
3666 if (error != 0)
3667 goto sagetparamsexit;
3668 }
3669
3670 if (params_to_get & SA_PARAM_BLOCKSIZE)
3671 *blocksize = scsi_3btoul(mode_blk->blklen);
3672
3673 if (params_to_get & SA_PARAM_NUMBLOCKS)
3674 *numblocks = scsi_3btoul(mode_blk->nblocks);
3675
3676 if (params_to_get & SA_PARAM_BUFF_MODE)
3677 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK;
3678
3679 if (params_to_get & SA_PARAM_DENSITY)
3680 *density = mode_blk->density;
3681
3682 if (params_to_get & SA_PARAM_WP)
3683 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE;
3684
3685 if (params_to_get & SA_PARAM_SPEED)
3686 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK;
3687
3688 if (params_to_get & SA_PARAM_COMPRESSION) {
3689 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1];
3690 if (cpage == SA_DATA_COMPRESSION_PAGE) {
3691 struct scsi_data_compression_page *cp = &ntcs->dcomp;
3692 *comp_supported =
3693 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE;
3694 *comp_enabled =
3695 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE;
3696 *comp_algorithm = scsi_4btoul(cp->comp_algorithm);
3697 } else {
3698 struct scsi_dev_conf_page *cp = &ntcs->dconf;
3699 /*
3700 * We don't really know whether this device supports
3701 * Data Compression if the algorithm field is
3702 * zero. Just say we do.
3703 */
3704 *comp_supported = TRUE;
3705 *comp_enabled =
3706 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE;
3707 *comp_algorithm = cp->sel_comp_alg;
3708 }
3709 if (tcs != NULL)
3710 bcopy(ntcs, tcs, sizeof (sa_comp_t));
3711 }
3712
3713 if ((params_to_get & SA_PARAM_DENSITY_EXT)
3714 && (softc->scsi_rev >= SCSI_REV_SPC)) {
3715 int i;
3716
3717 for (i = 0; i < SA_DENSITY_TYPES; i++) {
3718 scsi_report_density_support(&ccb->csio,
3719 /*retries*/ 1,
3720 /*cbfcnp*/ sadone,
3721 /*tag_action*/ MSG_SIMPLE_Q_TAG,
3722 /*media*/ softc->density_type_bits[i] & SRDS_MEDIA,
3723 /*medium_type*/ softc->density_type_bits[i] &
3724 SRDS_MEDIUM_TYPE,
3725 /*data_ptr*/ softc->density_info[i],
3726 /*length*/ sizeof(softc->density_info[i]),
3727 /*sense_len*/ SSD_FULL_SIZE,
3728 /*timeout*/ REP_DENSITY_TIMEOUT);
3729 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3730 softc->device_stats);
3731 status = ccb->ccb_h.status & CAM_STATUS_MASK;
3732
3733 /*
3734 * Some tape drives won't support this command at
3735 * all, but hopefully we'll minimize that with the
3736 * check for SPC or greater support above. If they
3737 * don't support the default report (neither the
3738 * MEDIA or MEDIUM_TYPE bits set), then there is
3739 * really no point in continuing on to look for
3740 * other reports.
3741 */
3742 if ((error != 0)
3743 || (status != CAM_REQ_CMP)) {
3744 error = 0;
3745 softc->density_info_valid[i] = 0;
3746 if (softc->density_type_bits[i] == 0)
3747 break;
3748 else
3749 continue;
3750 }
3751 softc->density_info_valid[i] = ccb->csio.dxfer_len -
3752 ccb->csio.resid;
3753 }
3754 }
3755
3756 /*
3757 * Get logical block protection parameters if the drive supports it.
3758 */
3759 if ((params_to_get & SA_PARAM_LBP)
3760 && (softc->flags & SA_FLAG_PROTECT_SUPP)) {
3761 struct scsi_mode_header_10 *mode10_hdr;
3762 struct scsi_control_data_prot_subpage *dp_page;
3763 struct scsi_mode_sense_10 *cdb;
3764 struct sa_prot_state *prot;
3765 int dp_len, returned_len;
3766
3767 if (dp_size == 0)
3768 dp_size = sizeof(*dp_page);
3769
3770 dp_len = sizeof(*mode10_hdr) + dp_size;
3771 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO);
3772 if (mode10_hdr == NULL) {
3773 error = ENOMEM;
3774 goto sagetparamsexit;
3775 }
3776
3777 scsi_mode_sense_len(&ccb->csio,
3778 /*retries*/ 5,
3779 /*cbfcnp*/ sadone,
3780 /*tag_action*/ MSG_SIMPLE_Q_TAG,
3781 /*dbd*/ TRUE,
3782 /*page_code*/ (prot_changeable == 0) ?
3783 SMS_PAGE_CTRL_CURRENT :
3784 SMS_PAGE_CTRL_CHANGEABLE,
3785 /*page*/ SMS_CONTROL_MODE_PAGE,
3786 /*param_buf*/ (uint8_t *)mode10_hdr,
3787 /*param_len*/ dp_len,
3788 /*minimum_cmd_size*/ 10,
3789 /*sense_len*/ SSD_FULL_SIZE,
3790 /*timeout*/ SCSIOP_TIMEOUT);
3791 /*
3792 * XXX KDM we need to be able to set the subpage in the
3793 * fill function.
3794 */
3795 cdb = (struct scsi_mode_sense_10 *)ccb->csio.cdb_io.cdb_bytes;
3796 cdb->subpage = SA_CTRL_DP_SUBPAGE_CODE;
3797
3798 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
3799 softc->device_stats);
3800 if (error != 0) {
3801 free(mode10_hdr, M_SCSISA);
3802 goto sagetparamsexit;
3803 }
3804
3805 status = ccb->ccb_h.status & CAM_STATUS_MASK;
3806 if (status != CAM_REQ_CMP) {
3807 error = EINVAL;
3808 free(mode10_hdr, M_SCSISA);
3809 goto sagetparamsexit;
3810 }
3811
3812 /*
3813 * The returned data length at least has to be long enough
3814 * for us to look at length in the mode page header.
3815 */
3816 returned_len = ccb->csio.dxfer_len - ccb->csio.resid;
3817 if (returned_len < sizeof(mode10_hdr->data_length)) {
3818 error = EINVAL;
3819 free(mode10_hdr, M_SCSISA);
3820 goto sagetparamsexit;
3821 }
3822
3823 returned_len = min(returned_len,
3824 sizeof(mode10_hdr->data_length) +
3825 scsi_2btoul(mode10_hdr->data_length));
3826
3827 dp_page = (struct scsi_control_data_prot_subpage *)
3828 &mode10_hdr[1];
3829
3830 /*
3831 * We also have to have enough data to include the prot_bits
3832 * in the subpage.
3833 */
3834 if (returned_len < (sizeof(*mode10_hdr) +
3835 __offsetof(struct scsi_control_data_prot_subpage, prot_bits)
3836 + sizeof(dp_page->prot_bits))) {
3837 error = EINVAL;
3838 free(mode10_hdr, M_SCSISA);
3839 goto sagetparamsexit;
3840 }
3841
3842 prot = &softc->prot_info.cur_prot_state;
3843 prot->prot_method = dp_page->prot_method;
3844 prot->pi_length = dp_page->pi_length &
3845 SA_CTRL_DP_PI_LENGTH_MASK;
3846 prot->lbp_w = (dp_page->prot_bits & SA_CTRL_DP_LBP_W) ? 1 :0;
3847 prot->lbp_r = (dp_page->prot_bits & SA_CTRL_DP_LBP_R) ? 1 :0;
3848 prot->rbdp = (dp_page->prot_bits & SA_CTRL_DP_RBDP) ? 1 :0;
3849 prot->initialized = 1;
3850
3851 if (prot_page != NULL)
3852 bcopy(dp_page, prot_page, min(sizeof(*prot_page),
3853 sizeof(*dp_page)));
3854
3855 free(mode10_hdr, M_SCSISA);
3856 }
3857
3858 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
3859 int idx;
3860 char *xyz = mode_buffer;
3861 xpt_print_path(periph->path);
3862 printf("Mode Sense Data=");
3863 for (idx = 0; idx < mode_buffer_len; idx++)
3864 printf(" 0x%02x", xyz[idx] & 0xff);
3865 printf("\n");
3866 }
3867
3868sagetparamsexit:
3869
3870 xpt_release_ccb(ccb);
3871 free(mode_buffer, M_SCSISA);
3872 return (error);
3873}
3874
3875/*
3876 * Set protection information to the pending protection information stored
3877 * in the softc.
3878 */
3879static int
3880sasetprot(struct cam_periph *periph, struct sa_prot_state *new_prot)
3881{
3882 struct sa_softc *softc;
3883 struct scsi_control_data_prot_subpage *dp_page, *dp_changeable;
3884 struct scsi_mode_header_10 *mode10_hdr, *mode10_changeable;
3885 union ccb *ccb;
3886 uint8_t current_speed;
3887 size_t dp_size, dp_page_length;
3888 int dp_len, buff_mode;
3889 int error;
3890
3891 softc = (struct sa_softc *)periph->softc;
3892 mode10_hdr = NULL;
3893 mode10_changeable = NULL;
3894 ccb = NULL;
3895
3896 /*
3897 * Start off with the size set to the actual length of the page
3898 * that we have defined.
3899 */
3900 dp_size = sizeof(*dp_changeable);
3901 dp_page_length = dp_size -
3902 __offsetof(struct scsi_control_data_prot_subpage, prot_method);
3903
3904retry_length:
3905
3906 dp_len = sizeof(*mode10_changeable) + dp_size;
3907 mode10_changeable = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO);
3908 if (mode10_changeable == NULL) {
3909 error = ENOMEM;
3910 goto bailout;
3911 }
3912
3913 dp_changeable =
3914 (struct scsi_control_data_prot_subpage *)&mode10_changeable[1];
3915
3916 /*
3917 * First get the data protection page changeable parameters mask.
3918 * We need to know which parameters the drive supports changing.
3919 * We also need to know what the drive claims that its page length
3920 * is. The reason is that IBM drives in particular are very picky
3921 * about the page length. They want it (the length set in the
3922 * page structure itself) to be 28 bytes, and they want the
3923 * parameter list length specified in the mode select header to be
3924 * 40 bytes. So, to work with IBM drives as well as any other tape
3925 * drive, find out what the drive claims the page length is, and
3926 * make sure that we match that.
3927 */
3928 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP,
3929 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL,
3930 NULL, NULL, dp_changeable, dp_size, /*prot_changeable*/ 1);
3931 if (error != 0)
3932 goto bailout;
3933
3934 if (scsi_2btoul(dp_changeable->length) > dp_page_length) {
3935 dp_page_length = scsi_2btoul(dp_changeable->length);
3936 dp_size = dp_page_length +
3937 __offsetof(struct scsi_control_data_prot_subpage,
3938 prot_method);
3939 free(mode10_changeable, M_SCSISA);
3940 mode10_changeable = NULL;
3941 goto retry_length;
3942 }
3943
3944 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO);
3945 if (mode10_hdr == NULL) {
3946 error = ENOMEM;
3947 goto bailout;
3948 }
3949
3950 dp_page = (struct scsi_control_data_prot_subpage *)&mode10_hdr[1];
3951
3952 /*
3953 * Now grab the actual current settings in the page.
3954 */
3955 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP,
3956 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL,
3957 NULL, NULL, dp_page, dp_size, /*prot_changeable*/ 0);
3958 if (error != 0)
3959 goto bailout;
3960
3961 /* These two fields need to be 0 for MODE SELECT */
3962 scsi_ulto2b(0, mode10_hdr->data_length);
3963 mode10_hdr->medium_type = 0;
3964 /* We are not including a block descriptor */
3965 scsi_ulto2b(0, mode10_hdr->blk_desc_len);
3966
3967 mode10_hdr->dev_spec = current_speed;
3968 /* if set, set single-initiator buffering mode */
3969 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) {
3970 mode10_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
3971 }
3972
3973 /*
3974 * For each field, make sure that the drive allows changing it
3975 * before bringing in the user's setting.
3976 */
3977 if (dp_changeable->prot_method != 0)
3978 dp_page->prot_method = new_prot->prot_method;
3979
3980 if (dp_changeable->pi_length & SA_CTRL_DP_PI_LENGTH_MASK) {
3981 dp_page->pi_length &= ~SA_CTRL_DP_PI_LENGTH_MASK;
3982 dp_page->pi_length |= (new_prot->pi_length &
3983 SA_CTRL_DP_PI_LENGTH_MASK);
3984 }
3985 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_W) {
3986 if (new_prot->lbp_w)
3987 dp_page->prot_bits |= SA_CTRL_DP_LBP_W;
3988 else
3989 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_W;
3990 }
3991
3992 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_R) {
3993 if (new_prot->lbp_r)
3994 dp_page->prot_bits |= SA_CTRL_DP_LBP_R;
3995 else
3996 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_R;
3997 }
3998
3999 if (dp_changeable->prot_bits & SA_CTRL_DP_RBDP) {
4000 if (new_prot->rbdp)
4001 dp_page->prot_bits |= SA_CTRL_DP_RBDP;
4002 else
4003 dp_page->prot_bits &= ~SA_CTRL_DP_RBDP;
4004 }
4005
4006 ccb = cam_periph_getccb(periph, 1);
4007
4008 scsi_mode_select_len(&ccb->csio,
4009 /*retries*/ 5,
4010 /*cbfcnp*/ sadone,
4011 /*tag_action*/ MSG_SIMPLE_Q_TAG,
4012 /*scsi_page_fmt*/ TRUE,
4013 /*save_pages*/ FALSE,
4014 /*param_buf*/ (uint8_t *)mode10_hdr,
4015 /*param_len*/ dp_len,
4016 /*minimum_cmd_size*/ 10,
4017 /*sense_len*/ SSD_FULL_SIZE,
4018 /*timeout*/ SCSIOP_TIMEOUT);
4019
4020 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4021 if (error != 0)
4022 goto bailout;
4023
4024 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
4025 error = EINVAL;
4026 goto bailout;
4027 }
4028
4029 /*
4030 * The operation was successful. We could just copy the settings
4031 * the user requested, but just in case the drive ignored some of
4032 * our settings, let's ask for status again.
4033 */
4034 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP,
4035 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL,
4036 NULL, NULL, dp_page, dp_size, 0);
4037
4038bailout:
4039 if (ccb != NULL)
4040 xpt_release_ccb(ccb);
4041 free(mode10_hdr, M_SCSISA);
4042 free(mode10_changeable, M_SCSISA);
4043 return (error);
4044}
4045
4046/*
4047 * The purpose of this function is to set one of four different parameters
4048 * for a tape drive:
4049 * - blocksize
4050 * - density
4051 * - compression / compression algorithm
4052 * - buffering mode
4053 *
4054 * The assumption is that this will be called from saioctl(), and therefore
4055 * from a process context. Thus the waiting malloc calls below. If that
4056 * assumption ever changes, the malloc calls should be changed to be
4057 * NOWAIT mallocs.
4058 *
4059 * Any or all of the four parameters may be set when this function is
4060 * called. It should handle setting more than one parameter at once.
4061 */
4062static int
4063sasetparams(struct cam_periph *periph, sa_params params_to_set,
4064 u_int32_t blocksize, u_int8_t density, u_int32_t calg,
4065 u_int32_t sense_flags)
4066{
4067 struct sa_softc *softc;
4068 u_int32_t current_blocksize;
4069 u_int32_t current_calg;
4070 u_int8_t current_density;
4071 u_int8_t current_speed;
4072 int comp_enabled, comp_supported;
4073 void *mode_buffer;
4074 int mode_buffer_len;
4075 struct scsi_mode_header_6 *mode_hdr;
4076 struct scsi_mode_blk_desc *mode_blk;
4077 sa_comp_t *ccomp, *cpage;
4078 int buff_mode;
4079 union ccb *ccb = NULL;
4080 int error;
4081
4082 softc = (struct sa_softc *)periph->softc;
4083
4084 ccomp = malloc(sizeof (sa_comp_t), M_SCSISA, M_NOWAIT);
4085 if (ccomp == NULL)
4086 return (ENOMEM);
4087
4088 /*
4089 * Since it doesn't make sense to set the number of blocks, or
4090 * write protection, we won't try to get the current value. We
4091 * always want to get the blocksize, so we can set it back to the
4092 * proper value.
4093 */
4094 error = sagetparams(periph,
4095 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED,
4096 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL,
4097 ¤t_speed, &comp_supported, &comp_enabled,
4098 ¤t_calg, ccomp, NULL, 0, 0);
4099
4100 if (error != 0) {
4101 free(ccomp, M_SCSISA);
4102 return (error);
4103 }
4104
4105 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
4106 if (params_to_set & SA_PARAM_COMPRESSION)
4107 mode_buffer_len += sizeof (sa_comp_t);
4108
4109 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO);
4110 if (mode_buffer == NULL) {
4111 free(ccomp, M_SCSISA);
4112 return (ENOMEM);
4113 }
4114
4115 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
4116 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
4117
4118 ccb = cam_periph_getccb(periph, 1);
4119
4120retry:
4121
4122 if (params_to_set & SA_PARAM_COMPRESSION) {
4123 if (mode_blk) {
4124 cpage = (sa_comp_t *)&mode_blk[1];
4125 } else {
4126 cpage = (sa_comp_t *)&mode_hdr[1];
4127 }
4128 bcopy(ccomp, cpage, sizeof (sa_comp_t));
4129 cpage->hdr.pagecode &= ~0x80;
4130 } else
4131 cpage = NULL;
4132
4133 /*
4134 * If the caller wants us to set the blocksize, use the one they
4135 * pass in. Otherwise, use the blocksize we got back from the
4136 * mode select above.
4137 */
4138 if (mode_blk) {
4139 if (params_to_set & SA_PARAM_BLOCKSIZE)
4140 scsi_ulto3b(blocksize, mode_blk->blklen);
4141 else
4142 scsi_ulto3b(current_blocksize, mode_blk->blklen);
4143
4144 /*
4145 * Set density if requested, else preserve old density.
4146 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
4147 * devices, else density we've latched up in our softc.
4148 */
4149 if (params_to_set & SA_PARAM_DENSITY) {
4150 mode_blk->density = density;
4151 } else if (softc->scsi_rev > SCSI_REV_CCS) {
4152 mode_blk->density = SCSI_SAME_DENSITY;
4153 } else {
4154 mode_blk->density = softc->media_density;
4155 }
4156 }
4157
4158 /*
4159 * For mode selects, these two fields must be zero.
4160 */
4161 mode_hdr->data_length = 0;
4162 mode_hdr->medium_type = 0;
4163
4164 /* set the speed to the current value */
4165 mode_hdr->dev_spec = current_speed;
4166
4167 /* if set, set single-initiator buffering mode */
4168 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) {
4169 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
4170 }
4171
4172 if (mode_blk)
4173 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc);
4174 else
4175 mode_hdr->blk_desc_len = 0;
4176
4177 /*
4178 * First, if the user wants us to set the compression algorithm or
4179 * just turn compression on, check to make sure that this drive
4180 * supports compression.
4181 */
4182 if (params_to_set & SA_PARAM_COMPRESSION) {
4183 /*
4184 * If the compression algorithm is 0, disable compression.
4185 * If the compression algorithm is non-zero, enable
4186 * compression and set the compression type to the
4187 * specified compression algorithm, unless the algorithm is
4188 * MT_COMP_ENABLE. In that case, we look at the
4189 * compression algorithm that is currently set and if it is
4190 * non-zero, we leave it as-is. If it is zero, and we have
4191 * saved a compression algorithm from a time when
4192 * compression was enabled before, set the compression to
4193 * the saved value.
4194 */
4195 switch (ccomp->hdr.pagecode & ~0x80) {
4196 case SA_DEVICE_CONFIGURATION_PAGE:
4197 {
4198 struct scsi_dev_conf_page *dcp = &cpage->dconf;
4199 if (calg == 0) {
4200 dcp->sel_comp_alg = SA_COMP_NONE;
4201 break;
4202 }
4203 if (calg != MT_COMP_ENABLE) {
4204 dcp->sel_comp_alg = calg;
4205 } else if (dcp->sel_comp_alg == SA_COMP_NONE &&
4206 softc->saved_comp_algorithm != 0) {
4207 dcp->sel_comp_alg = softc->saved_comp_algorithm;
4208 }
4209 break;
4210 }
4211 case SA_DATA_COMPRESSION_PAGE:
4212 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) {
4213 struct scsi_data_compression_page *dcp = &cpage->dcomp;
4214 if (calg == 0) {
4215 /*
4216 * Disable compression, but leave the
4217 * decompression and the capability bit
4218 * alone.
4219 */
4220 dcp->dce_and_dcc = SA_DCP_DCC;
4221 dcp->dde_and_red |= SA_DCP_DDE;
4222 break;
4223 }
4224 /* enable compression && decompression */
4225 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC;
4226 dcp->dde_and_red |= SA_DCP_DDE;
4227 /*
4228 * If there, use compression algorithm from caller.
4229 * Otherwise, if there's a saved compression algorithm
4230 * and there is no current algorithm, use the saved
4231 * algorithm. Else parrot back what we got and hope
4232 * for the best.
4233 */
4234 if (calg != MT_COMP_ENABLE) {
4235 scsi_ulto4b(calg, dcp->comp_algorithm);
4236 scsi_ulto4b(calg, dcp->decomp_algorithm);
4237 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 &&
4238 softc->saved_comp_algorithm != 0) {
4239 scsi_ulto4b(softc->saved_comp_algorithm,
4240 dcp->comp_algorithm);
4241 scsi_ulto4b(softc->saved_comp_algorithm,
4242 dcp->decomp_algorithm);
4243 }
4244 break;
4245 }
4246 /*
4247 * Compression does not appear to be supported-
4248 * at least via the DATA COMPRESSION page. It
4249 * would be too much to ask us to believe that
4250 * the page itself is supported, but incorrectly
4251 * reports an ability to manipulate data compression,
4252 * so we'll assume that this device doesn't support
4253 * compression. We can just fall through for that.
4254 */
4255 /* FALLTHROUGH */
4256 default:
4257 /*
4258 * The drive doesn't seem to support compression,
4259 * so turn off the set compression bit.
4260 */
4261 params_to_set &= ~SA_PARAM_COMPRESSION;
4262 xpt_print(periph->path,
4263 "device does not seem to support compression\n");
4264
4265 /*
4266 * If that was the only thing the user wanted us to set,
4267 * clean up allocated resources and return with
4268 * 'operation not supported'.
4269 */
4270 if (params_to_set == SA_PARAM_NONE) {
4271 free(mode_buffer, M_SCSISA);
4272 xpt_release_ccb(ccb);
4273 return (ENODEV);
4274 }
4275
4276 /*
4277 * That wasn't the only thing the user wanted us to set.
4278 * So, decrease the stated mode buffer length by the
4279 * size of the compression mode page.
4280 */
4281 mode_buffer_len -= sizeof(sa_comp_t);
4282 }
4283 }
4284
4285 /* It is safe to retry this operation */
4286 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
4287 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE,
4288 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
4289
4290 error = cam_periph_runccb(ccb, saerror, 0,
4291 sense_flags, softc->device_stats);
4292
4293 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
4294 int idx;
4295 char *xyz = mode_buffer;
4296 xpt_print_path(periph->path);
4297 printf("Err%d, Mode Select Data=", error);
4298 for (idx = 0; idx < mode_buffer_len; idx++)
4299 printf(" 0x%02x", xyz[idx] & 0xff);
4300 printf("\n");
4301 }
4302
4303
4304 if (error) {
4305 /*
4306 * If we can, try without setting density/blocksize.
4307 */
4308 if (mode_blk) {
4309 if ((params_to_set &
4310 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) {
4311 mode_blk = NULL;
4312 goto retry;
4313 }
4314 } else {
4315 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
4316 cpage = (sa_comp_t *)&mode_blk[1];
4317 }
4318
4319 /*
4320 * If we were setting the blocksize, and that failed, we
4321 * want to set it to its original value. If we weren't
4322 * setting the blocksize, we don't want to change it.
4323 */
4324 scsi_ulto3b(current_blocksize, mode_blk->blklen);
4325
4326 /*
4327 * Set density if requested, else preserve old density.
4328 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
4329 * devices, else density we've latched up in our softc.
4330 */
4331 if (params_to_set & SA_PARAM_DENSITY) {
4332 mode_blk->density = current_density;
4333 } else if (softc->scsi_rev > SCSI_REV_CCS) {
4334 mode_blk->density = SCSI_SAME_DENSITY;
4335 } else {
4336 mode_blk->density = softc->media_density;
4337 }
4338
4339 if (params_to_set & SA_PARAM_COMPRESSION)
4340 bcopy(ccomp, cpage, sizeof (sa_comp_t));
4341
4342 /*
4343 * The retry count is the only CCB field that might have been
4344 * changed that we care about, so reset it back to 1.
4345 */
4346 ccb->ccb_h.retry_count = 1;
4347 cam_periph_runccb(ccb, saerror, 0, sense_flags,
4348 softc->device_stats);
4349 }
4350
4351 xpt_release_ccb(ccb);
4352
4353 if (ccomp != NULL)
4354 free(ccomp, M_SCSISA);
4355
4356 if (params_to_set & SA_PARAM_COMPRESSION) {
4357 if (error) {
4358 softc->flags &= ~SA_FLAG_COMP_ENABLED;
4359 /*
4360 * Even if we get an error setting compression,
4361 * do not say that we don't support it. We could
4362 * have been wrong, or it may be media specific.
4363 * softc->flags &= ~SA_FLAG_COMP_SUPP;
4364 */
4365 softc->saved_comp_algorithm = softc->comp_algorithm;
4366 softc->comp_algorithm = 0;
4367 } else {
4368 softc->flags |= SA_FLAG_COMP_ENABLED;
4369 softc->comp_algorithm = calg;
4370 }
4371 }
4372
4373 free(mode_buffer, M_SCSISA);
4374 return (error);
4375}
4376
4377static int
4378saextget(struct cdev *dev, struct cam_periph *periph, struct sbuf *sb,
4379 struct mtextget *g)
4380{
4381 int indent, error;
4382 char tmpstr[80];
4383 struct sa_softc *softc;
4384 int tmpint;
4385 uint32_t maxio_tmp;
4386 struct ccb_getdev cgd;
4387
4388 softc = (struct sa_softc *)periph->softc;
4389
4390 error = 0;
4391
4392 error = sagetparams_common(dev, periph);
4393 if (error)
4394 goto extget_bailout;
4395 if (!SA_IS_CTRL(dev) && !softc->open_pending_mount)
4396 sagetpos(periph);
4397
4398 indent = 0;
4399 SASBADDNODE(sb, indent, mtextget);
4400 /*
4401 * Basic CAM peripheral information.
4402 */
4403 SASBADDVARSTR(sb, indent, periph->periph_name, %s, periph_name,
4404 strlen(periph->periph_name) + 1);
4405 SASBADDUINT(sb, indent, periph->unit_number, %u, unit_number);
4406 xpt_setup_ccb(&cgd.ccb_h,
4407 periph->path,
4408 CAM_PRIORITY_NORMAL);
4409 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
4410 xpt_action((union ccb *)&cgd);
4411 if ((cgd.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
4412 g->status = MT_EXT_GET_ERROR;
4413 snprintf(g->error_str, sizeof(g->error_str),
4414 "Error %#x returned for XPT_GDEV_TYPE CCB",
4415 cgd.ccb_h.status);
4416 goto extget_bailout;
4417 }
4418
4419 cam_strvis(tmpstr, cgd.inq_data.vendor,
4420 sizeof(cgd.inq_data.vendor), sizeof(tmpstr));
4421 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, vendor,
4422 sizeof(cgd.inq_data.vendor) + 1, "SCSI Vendor ID");
4423
4424 cam_strvis(tmpstr, cgd.inq_data.product,
4425 sizeof(cgd.inq_data.product), sizeof(tmpstr));
4426 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, product,
4427 sizeof(cgd.inq_data.product) + 1, "SCSI Product ID");
4428
4429 cam_strvis(tmpstr, cgd.inq_data.revision,
4430 sizeof(cgd.inq_data.revision), sizeof(tmpstr));
4431 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, revision,
4432 sizeof(cgd.inq_data.revision) + 1, "SCSI Revision");
4433
4434 if (cgd.serial_num_len > 0) {
4435 char *tmpstr2;
4436 size_t ts2_len;
4437 int ts2_malloc;
4438
4439 ts2_len = 0;
4440
4441 if (cgd.serial_num_len > sizeof(tmpstr)) {
4442 ts2_len = cgd.serial_num_len + 1;
4443 ts2_malloc = 1;
4444 tmpstr2 = malloc(ts2_len, M_SCSISA, M_WAITOK | M_ZERO);
4445 } else {
4446 ts2_len = sizeof(tmpstr);
4447 ts2_malloc = 0;
4448 tmpstr2 = tmpstr;
4449 }
4450
4451 cam_strvis(tmpstr2, cgd.serial_num, cgd.serial_num_len,
4452 ts2_len);
4453
4454 SASBADDVARSTRDESC(sb, indent, tmpstr2, %s, serial_num,
4455 (ssize_t)cgd.serial_num_len + 1, "Serial Number");
4456 if (ts2_malloc != 0)
4457 free(tmpstr2, M_SCSISA);
4458 } else {
4459 /*
4460 * We return a serial_num element in any case, but it will
4461 * be empty if the device has no serial number.
4462 */
4463 tmpstr[0] = '\0';
4464 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, serial_num,
4465 (ssize_t)0, "Serial Number");
4466 }
4467
4468 SASBADDUINTDESC(sb, indent, softc->maxio, %u, maxio,
4469 "Maximum I/O size allowed by driver and controller");
4470
4471 SASBADDUINTDESC(sb, indent, softc->cpi_maxio, %u, cpi_maxio,
4472 "Maximum I/O size reported by controller");
4473
4474 SASBADDUINTDESC(sb, indent, softc->max_blk, %u, max_blk,
4475 "Maximum block size supported by tape drive and media");
4476
4477 SASBADDUINTDESC(sb, indent, softc->min_blk, %u, min_blk,
4478 "Minimum block size supported by tape drive and media");
4479
4480 SASBADDUINTDESC(sb, indent, softc->blk_gran, %u, blk_gran,
4481 "Block granularity supported by tape drive and media");
4482
4483 maxio_tmp = min(softc->max_blk, softc->maxio);
4484
4485 SASBADDUINTDESC(sb, indent, maxio_tmp, %u, max_effective_iosize,
4486 "Maximum possible I/O size");
4487
4488 SASBADDINTDESC(sb, indent, softc->flags & SA_FLAG_FIXED ? 1 : 0, %d,
4489 fixed_mode, "Set to 1 for fixed block mode, 0 for variable block");
4490
4491 /*
4492 * XXX KDM include SIM, bus, target, LUN?
4493 */
4494 if (softc->flags & SA_FLAG_COMP_UNSUPP)
4495 tmpint = 0;
4496 else
4497 tmpint = 1;
4498 SASBADDINTDESC(sb, indent, tmpint, %d, compression_supported,
4499 "Set to 1 if compression is supported, 0 if not");
4500 if (softc->flags & SA_FLAG_COMP_ENABLED)
4501 tmpint = 1;
4502 else
4503 tmpint = 0;
4504 SASBADDINTDESC(sb, indent, tmpint, %d, compression_enabled,
4505 "Set to 1 if compression is enabled, 0 if not");
4506 SASBADDUINTDESC(sb, indent, softc->comp_algorithm, %u,
4507 compression_algorithm, "Numeric compression algorithm");
4508
4509 safillprot(softc, &indent, sb);
4510
4511 SASBADDUINTDESC(sb, indent, softc->media_blksize, %u,
4512 media_blocksize, "Block size reported by drive or set by user");
4513 SASBADDINTDESC(sb, indent, (intmax_t)softc->fileno, %jd,
4514 calculated_fileno, "Calculated file number, -1 if unknown");
4515 SASBADDINTDESC(sb, indent, (intmax_t)softc->blkno, %jd,
4516 calculated_rel_blkno, "Calculated block number relative to file, "
4517 "set to -1 if unknown");
4518 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_fileno, %jd,
4519 reported_fileno, "File number reported by drive, -1 if unknown");
4520 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_blkno, %jd,
4521 reported_blkno, "Block number relative to BOP/BOT reported by "
4522 "drive, -1 if unknown");
4523 SASBADDINTDESC(sb, indent, (intmax_t)softc->partition, %jd,
4524 partition, "Current partition number, 0 is the default");
4525 SASBADDINTDESC(sb, indent, softc->bop, %d, bop,
4526 "Set to 1 if drive is at the beginning of partition/tape, 0 if "
4527 "not, -1 if unknown");
4528 SASBADDINTDESC(sb, indent, softc->eop, %d, eop,
4529 "Set to 1 if drive is past early warning, 0 if not, -1 if unknown");
4530 SASBADDINTDESC(sb, indent, softc->bpew, %d, bpew,
4531 "Set to 1 if drive is past programmable early warning, 0 if not, "
4532 "-1 if unknown");
4533 SASBADDINTDESC(sb, indent, (intmax_t)softc->last_io_resid, %jd,
4534 residual, "Residual for the last I/O");
4535 /*
4536 * XXX KDM should we send a string with the current driver
4537 * status already decoded instead of a numeric value?
4538 */
4539 SASBADDINTDESC(sb, indent, softc->dsreg, %d, dsreg,
4540 "Current state of the driver");
4541
4542 safilldensitysb(softc, &indent, sb);
4543
4544 SASBENDNODE(sb, indent, mtextget);
4545
4546extget_bailout:
4547
4548 return (error);
4549}
4550
4551static int
4552saparamget(struct sa_softc *softc, struct sbuf *sb)
4553{
4554 int indent;
4555
4556 indent = 0;
4557 SASBADDNODE(sb, indent, mtparamget);
4558 SASBADDINTDESC(sb, indent, softc->sili, %d, sili,
4559 "Suppress an error on underlength variable reads");
4560 SASBADDINTDESC(sb, indent, softc->eot_warn, %d, eot_warn,
4561 "Return an error to warn that end of tape is approaching");
4562 safillprot(softc, &indent, sb);
4563 SASBENDNODE(sb, indent, mtparamget);
4564
4565 return (0);
4566}
4567
4568static void
4569saprevent(struct cam_periph *periph, int action)
4570{
4571 struct sa_softc *softc;
4572 union ccb *ccb;
4573 int error, sf;
4574
4575 softc = (struct sa_softc *)periph->softc;
4576
4577 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0)
4578 return;
4579 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
4580 return;
4581
4582 /*
4583 * We can be quiet about illegal requests.
4584 */
4585 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
4586 sf = 0;
4587 } else
4588 sf = SF_QUIET_IR;
4589
4590 ccb = cam_periph_getccb(periph, 1);
4591
4592 /* It is safe to retry this operation */
4593 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
4594 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
4595
4596 error = cam_periph_runccb(ccb, saerror, 0, sf, softc->device_stats);
4597 if (error == 0) {
4598 if (action == PR_ALLOW)
4599 softc->flags &= ~SA_FLAG_TAPE_LOCKED;
4600 else
4601 softc->flags |= SA_FLAG_TAPE_LOCKED;
4602 }
4603
4604 xpt_release_ccb(ccb);
4605}
4606
4607static int
4608sarewind(struct cam_periph *periph)
4609{
4610 union ccb *ccb;
4611 struct sa_softc *softc;
4612 int error;
4613
4614 softc = (struct sa_softc *)periph->softc;
4615
4616 ccb = cam_periph_getccb(periph, 1);
4617
4618 /* It is safe to retry this operation */
4619 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
4620 SSD_FULL_SIZE, REWIND_TIMEOUT);
4621
4622 softc->dsreg = MTIO_DSREG_REW;
4623 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4624 softc->dsreg = MTIO_DSREG_REST;
4625
4626 xpt_release_ccb(ccb);
4627 if (error == 0) {
4628 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0;
4629 softc->rep_fileno = softc->rep_blkno = (daddr_t) 0;
4630 } else {
4631 softc->fileno = softc->blkno = (daddr_t) -1;
4632 softc->partition = (daddr_t) -1;
4633 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1;
4634 }
4635 return (error);
4636}
4637
4638static int
4639saspace(struct cam_periph *periph, int count, scsi_space_code code)
4640{
4641 union ccb *ccb;
4642 struct sa_softc *softc;
4643 int error;
4644
4645 softc = (struct sa_softc *)periph->softc;
4646
4647 ccb = cam_periph_getccb(periph, 1);
4648
4649 /* This cannot be retried */
4650
4651 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count,
4652 SSD_FULL_SIZE, SPACE_TIMEOUT);
4653
4654 /*
4655 * Clear residual because we will be using it.
4656 */
4657 softc->last_ctl_resid = 0;
4658
4659 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD;
4660 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4661 softc->dsreg = MTIO_DSREG_REST;
4662
4663 xpt_release_ccb(ccb);
4664
4665 /*
4666 * If a spacing operation has failed, we need to invalidate
4667 * this mount.
4668 *
4669 * If the spacing operation was setmarks or to end of recorded data,
4670 * we no longer know our relative position.
4671 *
4672 * If the spacing operations was spacing files in reverse, we
4673 * take account of the residual, but still check against less
4674 * than zero- if we've gone negative, we must have hit BOT.
4675 *
4676 * If the spacing operations was spacing records in reverse and
4677 * we have a residual, we've either hit BOT or hit a filemark.
4678 * In the former case, we know our new record number (0). In
4679 * the latter case, we have absolutely no idea what the real
4680 * record number is- we've stopped between the end of the last
4681 * record in the previous file and the filemark that stopped
4682 * our spacing backwards.
4683 */
4684 if (error) {
4685 softc->fileno = softc->blkno = (daddr_t) -1;
4686 softc->rep_blkno = softc->partition = (daddr_t) -1;
4687 softc->rep_fileno = (daddr_t) -1;
4688 } else if (code == SS_SETMARKS || code == SS_EOD) {
4689 softc->fileno = softc->blkno = (daddr_t) -1;
4690 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) {
4691 softc->fileno += (count - softc->last_ctl_resid);
4692 if (softc->fileno < 0) /* we must of hit BOT */
4693 softc->fileno = 0;
4694 softc->blkno = 0;
4695 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) {
4696 softc->blkno += (count - softc->last_ctl_resid);
4697 if (count < 0) {
4698 if (softc->last_ctl_resid || softc->blkno < 0) {
4699 if (softc->fileno == 0) {
4700 softc->blkno = 0;
4701 } else {
4702 softc->blkno = (daddr_t) -1;
4703 }
4704 }
4705 }
4706 }
4707 if (error == 0)
4708 sagetpos(periph);
4709
4710 return (error);
4711}
4712
4713static int
4714sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks, int immed)
4715{
4716 union ccb *ccb;
4717 struct sa_softc *softc;
4718 int error, nwm = 0;
4719
4720 softc = (struct sa_softc *)periph->softc;
4721 if (softc->open_rdonly)
4722 return (EBADF);
4723
4724 ccb = cam_periph_getccb(periph, 1);
4725 /*
4726 * Clear residual because we will be using it.
4727 */
4728 softc->last_ctl_resid = 0;
4729
4730 softc->dsreg = MTIO_DSREG_FMK;
4731 /* this *must* not be retried */
4732 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG,
4733 immed, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT);
4734 softc->dsreg = MTIO_DSREG_REST;
4735
4736
4737 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4738
4739 if (error == 0 && nmarks) {
4740 struct sa_softc *softc = (struct sa_softc *)periph->softc;
4741 nwm = nmarks - softc->last_ctl_resid;
4742 softc->filemarks += nwm;
4743 }
4744
4745 xpt_release_ccb(ccb);
4746
4747 /*
4748 * Update relative positions (if we're doing that).
4749 */
4750 if (error) {
4751 softc->fileno = softc->blkno = softc->partition = (daddr_t) -1;
4752 } else if (softc->fileno != (daddr_t) -1) {
4753 softc->fileno += nwm;
4754 softc->blkno = 0;
4755 }
4756
4757 /*
4758 * Ask the tape drive for position information.
4759 */
4760 sagetpos(periph);
4761
4762 /*
4763 * If we got valid position information, since we just wrote a file
4764 * mark, we know we're at the file mark and block 0 after that
4765 * filemark.
4766 */
4767 if (softc->rep_fileno != (daddr_t) -1) {
4768 softc->fileno = softc->rep_fileno;
4769 softc->blkno = 0;
4770 }
4771
4772 return (error);
4773}
4774
4775static int
4776sagetpos(struct cam_periph *periph)
4777{
4778 union ccb *ccb;
4779 struct scsi_tape_position_long_data long_pos;
4780 struct sa_softc *softc = (struct sa_softc *)periph->softc;
4781 int error;
4782
4783 if (softc->quirks & SA_QUIRK_NO_LONG_POS) {
4784 softc->rep_fileno = (daddr_t) -1;
4785 softc->rep_blkno = (daddr_t) -1;
4786 softc->bop = softc->eop = softc->bpew = -1;
4787 return (EOPNOTSUPP);
4788 }
4789
4790 bzero(&long_pos, sizeof(long_pos));
4791
4792 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
4793 scsi_read_position_10(&ccb->csio,
4794 /*retries*/ 1,
4795 /*cbfcnp*/ sadone,
4796 /*tag_action*/ MSG_SIMPLE_Q_TAG,
4797 /*service_action*/ SA_RPOS_LONG_FORM,
4798 /*data_ptr*/ (uint8_t *)&long_pos,
4799 /*length*/ sizeof(long_pos),
4800 /*sense_len*/ SSD_FULL_SIZE,
4801 /*timeout*/ SCSIOP_TIMEOUT);
4802
4803 softc->dsreg = MTIO_DSREG_RBSY;
4804 error = cam_periph_runccb(ccb, saerror, 0, SF_QUIET_IR,
4805 softc->device_stats);
4806 softc->dsreg = MTIO_DSREG_REST;
4807
4808 if (error == 0) {
4809 if (long_pos.flags & SA_RPOS_LONG_MPU) {
4810 /*
4811 * If the drive doesn't know what file mark it is
4812 * on, our calculated filemark isn't going to be
4813 * accurate either.
4814 */
4815 softc->fileno = (daddr_t) -1;
4816 softc->rep_fileno = (daddr_t) -1;
4817 } else {
4818 softc->fileno = softc->rep_fileno =
4819 scsi_8btou64(long_pos.logical_file_num);
4820 }
4821
4822 if (long_pos.flags & SA_RPOS_LONG_LONU) {
4823 softc->partition = (daddr_t) -1;
4824 softc->rep_blkno = (daddr_t) -1;
4825 /*
4826 * If the tape drive doesn't know its block
4827 * position, we can't claim to know it either.
4828 */
4829 softc->blkno = (daddr_t) -1;
4830 } else {
4831 softc->partition = scsi_4btoul(long_pos.partition);
4832 softc->rep_blkno =
4833 scsi_8btou64(long_pos.logical_object_num);
4834 }
4835 if (long_pos.flags & SA_RPOS_LONG_BOP)
4836 softc->bop = 1;
4837 else
4838 softc->bop = 0;
4839
4840 if (long_pos.flags & SA_RPOS_LONG_EOP)
4841 softc->eop = 1;
4842 else
4843 softc->eop = 0;
4844
4845 if (long_pos.flags & SA_RPOS_LONG_BPEW)
4846 softc->bpew = 1;
4847 else
4848 softc->bpew = 0;
4849 } else if (error == EINVAL) {
4850 /*
4851 * If this drive returned an invalid-request type error,
4852 * then it likely doesn't support the long form report.
4853 */
4854 softc->quirks |= SA_QUIRK_NO_LONG_POS;
4855 }
4856
4857 if (error != 0) {
4858 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1;
4859 softc->partition = (daddr_t) -1;
4860 softc->bop = softc->eop = softc->bpew = -1;
4861 }
4862
4863 xpt_release_ccb(ccb);
4864
4865 return (error);
4866}
4867
4868static int
4869sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
4870{
4871 struct scsi_tape_position_data loc;
4872 union ccb *ccb;
4873 struct sa_softc *softc = (struct sa_softc *)periph->softc;
4874 int error;
4875
4876 /*
4877 * We try and flush any buffered writes here if we were writing
4878 * and we're trying to get hardware block position. It eats
4879 * up performance substantially, but I'm wary of drive firmware.
4880 *
4881 * I think that *logical* block position is probably okay-
4882 * but hardware block position might have to wait for data
4883 * to hit media to be valid. Caveat Emptor.
4884 */
4885
4886 if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) {
4887 error = sawritefilemarks(periph, 0, 0, 0);
4888 if (error && error != EACCES)
4889 return (error);
4890 }
4891
4892 ccb = cam_periph_getccb(periph, 1);
4893 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
4894 hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
4895 softc->dsreg = MTIO_DSREG_RBSY;
4896 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4897 softc->dsreg = MTIO_DSREG_REST;
4898
4899 if (error == 0) {
4900 if (loc.flags & SA_RPOS_UNCERTAIN) {
4901 error = EINVAL; /* nothing is certain */
4902 } else {
4903 *blkptr = scsi_4btoul(loc.firstblk);
4904 }
4905 }
4906
4907 xpt_release_ccb(ccb);
4908 return (error);
4909}
4910
4911static int
4912sasetpos(struct cam_periph *periph, int hard, struct mtlocate *locate_info)
4913{
4914 union ccb *ccb;
4915 struct sa_softc *softc;
4916 int locate16;
4917 int immed, cp;
4918 int error;
4919
4920 /*
4921 * We used to try and flush any buffered writes here.
4922 * Now we push this onto user applications to either
4923 * flush the pending writes themselves (via a zero count
4924 * WRITE FILEMARKS command) or they can trust their tape
4925 * drive to do this correctly for them.
4926 */
4927
4928 softc = (struct sa_softc *)periph->softc;
4929 ccb = cam_periph_getccb(periph, 1);
4930
4931 cp = locate_info->flags & MT_LOCATE_FLAG_CHANGE_PART ? 1 : 0;
4932 immed = locate_info->flags & MT_LOCATE_FLAG_IMMED ? 1 : 0;
4933
4934 /*
4935 * Determine whether we have to use LOCATE or LOCATE16. The hard
4936 * bit is only possible with LOCATE, but the new ioctls do not
4937 * allow setting that bit. So we can't get into the situation of
4938 * having the hard bit set with a block address that is larger than
4939 * 32-bits.
4940 */
4941 if (hard != 0)
4942 locate16 = 0;
4943 else if ((locate_info->dest_type != MT_LOCATE_DEST_OBJECT)
4944 || (locate_info->block_address_mode != MT_LOCATE_BAM_IMPLICIT)
4945 || (locate_info->logical_id > SA_SPOS_MAX_BLK))
4946 locate16 = 1;
4947 else
4948 locate16 = 0;
4949
4950 if (locate16 != 0) {
4951 scsi_locate_16(&ccb->csio,
4952 /*retries*/ 1,
4953 /*cbfcnp*/ sadone,
4954 /*tag_action*/ MSG_SIMPLE_Q_TAG,
4955 /*immed*/ immed,
4956 /*cp*/ cp,
4957 /*dest_type*/ locate_info->dest_type,
4958 /*bam*/ locate_info->block_address_mode,
4959 /*partition*/ locate_info->partition,
4960 /*logical_id*/ locate_info->logical_id,
4961 /*sense_len*/ SSD_FULL_SIZE,
4962 /*timeout*/ SPACE_TIMEOUT);
4963 } else {
4964 uint32_t blk_pointer;
4965
4966 blk_pointer = locate_info->logical_id;
4967
4968 scsi_locate_10(&ccb->csio,
4969 /*retries*/ 1,
4970 /*cbfcnp*/ sadone,
4971 /*tag_action*/ MSG_SIMPLE_Q_TAG,
4972 /*immed*/ immed,
4973 /*cp*/ cp,
4974 /*hard*/ hard,
4975 /*partition*/ locate_info->partition,
4976 /*block_address*/ locate_info->logical_id,
4977 /*sense_len*/ SSD_FULL_SIZE,
4978 /*timeout*/ SPACE_TIMEOUT);
4979 }
4980
4981 softc->dsreg = MTIO_DSREG_POS;
4982 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
4983 softc->dsreg = MTIO_DSREG_REST;
4984 xpt_release_ccb(ccb);
4985
4986 /*
4987 * We assume the calculated file and block numbers are unknown
4988 * unless we have enough information to populate them.
4989 */
4990 softc->fileno = softc->blkno = (daddr_t) -1;
4991
4992 /*
4993 * If the user requested changing the partition and the request
4994 * succeeded, note the partition.
4995 */
4996 if ((error == 0)
4997 && (cp != 0))
4998 softc->partition = locate_info->partition;
4999 else
5000 softc->partition = (daddr_t) -1;
5001
5002 if (error == 0) {
5003 switch (locate_info->dest_type) {
5004 case MT_LOCATE_DEST_FILE:
5005 /*
5006 * This is the only case where we can reliably
5007 * calculate the file and block numbers.
5008 */
5009 softc->fileno = locate_info->logical_id;
5010 softc->blkno = 0;
5011 break;
5012 case MT_LOCATE_DEST_OBJECT:
5013 case MT_LOCATE_DEST_SET:
5014 case MT_LOCATE_DEST_EOD:
5015 default:
5016 break;
5017 }
5018 }
5019
5020 /*
5021 * Ask the drive for current position information.
5022 */
5023 sagetpos(periph);
5024
5025 return (error);
5026}
5027
5028static int
5029saretension(struct cam_periph *periph)
5030{
5031 union ccb *ccb;
5032 struct sa_softc *softc;
5033 int error;
5034
5035 softc = (struct sa_softc *)periph->softc;
5036
5037 ccb = cam_periph_getccb(periph, 1);
5038
5039 /* It is safe to retry this operation */
5040 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
5041 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT);
5042
5043 softc->dsreg = MTIO_DSREG_TEN;
5044 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
5045 softc->dsreg = MTIO_DSREG_REST;
5046
5047 xpt_release_ccb(ccb);
5048 if (error == 0) {
5049 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0;
5050 sagetpos(periph);
5051 } else
5052 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1;
5053 return (error);
5054}
5055
5056static int
5057sareservereleaseunit(struct cam_periph *periph, int reserve)
5058{
5059 union ccb *ccb;
5060 struct sa_softc *softc;
5061 int error;
5062
5063 softc = (struct sa_softc *)periph->softc;
5064 ccb = cam_periph_getccb(periph, 1);
5065
5066 /* It is safe to retry this operation */
5067 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
5068 FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve);
5069 softc->dsreg = MTIO_DSREG_RBSY;
5070 error = cam_periph_runccb(ccb, saerror, 0,
5071 SF_RETRY_UA | SF_NO_PRINT, softc->device_stats);
5072 softc->dsreg = MTIO_DSREG_REST;
5073 xpt_release_ccb(ccb);
5074
5075 /*
5076 * If the error was Illegal Request, then the device doesn't support
5077 * RESERVE/RELEASE. This is not an error.
5078 */
5079 if (error == EINVAL) {
5080 error = 0;
5081 }
5082
5083 return (error);
5084}
5085
5086static int
5087saloadunload(struct cam_periph *periph, int load)
5088{
5089 union ccb *ccb;
5090 struct sa_softc *softc;
5091 int error;
5092
5093 softc = (struct sa_softc *)periph->softc;
5094
5095 ccb = cam_periph_getccb(periph, 1);
5096
5097 /* It is safe to retry this operation */
5098 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
5099 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT);
5100
5101 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL;
5102 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
5103 softc->dsreg = MTIO_DSREG_REST;
5104 xpt_release_ccb(ccb);
5105
5106 if (error || load == 0) {
5107 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1;
5108 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1;
5109 } else if (error == 0) {
5110 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0;
5111 sagetpos(periph);
5112 }
5113 return (error);
5114}
5115
5116static int
5117saerase(struct cam_periph *periph, int longerase)
5118{
5119
5120 union ccb *ccb;
5121 struct sa_softc *softc;
5122 int error;
5123
5124 softc = (struct sa_softc *)periph->softc;
5125 if (softc->open_rdonly)
5126 return (EBADF);
5127
5128 ccb = cam_periph_getccb(periph, 1);
5129
5130 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase,
5131 SSD_FULL_SIZE, ERASE_TIMEOUT);
5132
5133 softc->dsreg = MTIO_DSREG_ZER;
5134 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
5135 softc->dsreg = MTIO_DSREG_REST;
5136
5137 xpt_release_ccb(ccb);
5138 return (error);
5139}
5140
5141/*
5142 * Fill an sbuf with density data in XML format. This particular macro
5143 * works for multi-byte integer fields.
5144 *
5145 * Note that 1 byte fields aren't supported here. The reason is that the
5146 * compiler does not evaluate the sizeof(), and assumes that any of the
5147 * sizes are possible for a given field. So passing in a multi-byte
5148 * field will result in a warning that the assignment makes an integer
5149 * from a pointer without a cast, if there is an assignment in the 1 byte
5150 * case.
5151 */
5152#define SAFILLDENSSB(dens_data, sb, indent, field, desc_remain, \
5153 len_to_go, cur_offset, desc){ \
5154 size_t cur_field_len; \
5155 \
5156 cur_field_len = sizeof(dens_data->field); \
5157 if (desc_remain < cur_field_len) { \
5158 len_to_go -= desc_remain; \
5159 cur_offset += desc_remain; \
5160 continue; \
5161 } \
5162 len_to_go -= cur_field_len; \
5163 cur_offset += cur_field_len; \
5164 desc_remain -= cur_field_len; \
5165 \
5166 switch (sizeof(dens_data->field)) { \
5167 case 1: \
5168 KASSERT(1 == 0, ("Programmer error, invalid 1 byte " \
5169 "field width for SAFILLDENSFIELD")); \
5170 break; \
5171 case 2: \
5172 SASBADDUINTDESC(sb, indent, \
5173 scsi_2btoul(dens_data->field), %u, field, desc); \
5174 break; \
5175 case 3: \
5176 SASBADDUINTDESC(sb, indent, \
5177 scsi_3btoul(dens_data->field), %u, field, desc); \
5178 break; \
5179 case 4: \
5180 SASBADDUINTDESC(sb, indent, \
5181 scsi_4btoul(dens_data->field), %u, field, desc); \
5182 break; \
5183 case 8: \
5184 SASBADDUINTDESC(sb, indent, \
5185 (uintmax_t)scsi_8btou64(dens_data->field), %ju, \
5186 field, desc); \
5187 break; \
5188 default: \
5189 break; \
5190 } \
5191};
5192/*
5193 * Fill an sbuf with density data in XML format. This particular macro
5194 * works for strings.
5195 */
5196#define SAFILLDENSSBSTR(dens_data, sb, indent, field, desc_remain, \
5197 len_to_go, cur_offset, desc){ \
5198 size_t cur_field_len; \
5199 char tmpstr[32]; \
5200 \
5201 cur_field_len = sizeof(dens_data->field); \
5202 if (desc_remain < cur_field_len) { \
5203 len_to_go -= desc_remain; \
5204 cur_offset += desc_remain; \
5205 continue; \
5206 } \
5207 len_to_go -= cur_field_len; \
5208 cur_offset += cur_field_len; \
5209 desc_remain -= cur_field_len; \
5210 \
5211 cam_strvis(tmpstr, dens_data->field, \
5212 sizeof(dens_data->field), sizeof(tmpstr)); \
5213 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, field, \
5214 strlen(tmpstr) + 1, desc); \
5215};
5216
5217/*
5218 * Fill an sbuf with density data descriptors.
5219 */
5220static void
5221safilldenstypesb(struct sbuf *sb, int *indent, uint8_t *buf, int buf_len,
5222 int is_density)
5223{
5224 struct scsi_density_hdr *hdr;
5225 uint32_t hdr_len;
5226 int len_to_go, cur_offset;
5227 int length_offset;
5228 int num_reports, need_close;
5229
5230 /*
5231 * We need at least the header length. Note that this isn't an
5232 * error, not all tape drives will have every data type.
5233 */
5234 if (buf_len < sizeof(*hdr))
5235 goto bailout;
5236
5237
5238 hdr = (struct scsi_density_hdr *)buf;
5239 hdr_len = scsi_2btoul(hdr->length);
5240 len_to_go = min(buf_len - sizeof(*hdr), hdr_len);
5241 if (is_density) {
5242 length_offset = __offsetof(struct scsi_density_data,
5243 bits_per_mm);
5244 } else {
5245 length_offset = __offsetof(struct scsi_medium_type_data,
5246 num_density_codes);
5247 }
5248 cur_offset = sizeof(*hdr);
5249
5250 num_reports = 0;
5251 need_close = 0;
5252
5253 while (len_to_go > length_offset) {
5254 struct scsi_density_data *dens_data;
5255 struct scsi_medium_type_data *type_data;
5256 int desc_remain;
5257 size_t cur_field_len;
5258
5259 dens_data = NULL;
5260 type_data = NULL;
5261
5262 if (is_density) {
5263 dens_data =(struct scsi_density_data *)&buf[cur_offset];
5264 if (dens_data->byte2 & SDD_DLV)
5265 desc_remain = scsi_2btoul(dens_data->length);
5266 else
5267 desc_remain = SDD_DEFAULT_LENGTH -
5268 length_offset;
5269 } else {
5270 type_data = (struct scsi_medium_type_data *)
5271 &buf[cur_offset];
5272 desc_remain = scsi_2btoul(type_data->length);
5273 }
5274
5275 len_to_go -= length_offset;
5276 desc_remain = min(desc_remain, len_to_go);
5277 cur_offset += length_offset;
5278
5279 if (need_close != 0) {
5280 SASBENDNODE(sb, *indent, density_entry);
5281 }
5282
5283 SASBADDNODENUM(sb, *indent, density_entry, num_reports);
5284 num_reports++;
5285 need_close = 1;
5286
5287 if (is_density) {
5288 SASBADDUINTDESC(sb, *indent,
5289 dens_data->primary_density_code, %u,
5290 primary_density_code, "Primary Density Code");
5291 SASBADDUINTDESC(sb, *indent,
5292 dens_data->secondary_density_code, %u,
5293 secondary_density_code, "Secondary Density Code");
5294 SASBADDUINTDESC(sb, *indent,
5295 dens_data->byte2 & ~SDD_DLV, %#x, density_flags,
5296 "Density Flags");
5297
5298 SAFILLDENSSB(dens_data, sb, *indent, bits_per_mm,
5299 desc_remain, len_to_go, cur_offset, "Bits per mm");
5300 SAFILLDENSSB(dens_data, sb, *indent, media_width,
5301 desc_remain, len_to_go, cur_offset, "Media width");
5302 SAFILLDENSSB(dens_data, sb, *indent, tracks,
5303 desc_remain, len_to_go, cur_offset,
5304 "Number of Tracks");
5305 SAFILLDENSSB(dens_data, sb, *indent, capacity,
5306 desc_remain, len_to_go, cur_offset, "Capacity");
5307
5308 SAFILLDENSSBSTR(dens_data, sb, *indent, assigning_org,
5309 desc_remain, len_to_go, cur_offset,
5310 "Assigning Organization");
5311
5312 SAFILLDENSSBSTR(dens_data, sb, *indent, density_name,
5313 desc_remain, len_to_go, cur_offset, "Density Name");
5314
5315 SAFILLDENSSBSTR(dens_data, sb, *indent, description,
5316 desc_remain, len_to_go, cur_offset, "Description");
5317 } else {
5318 int i;
5319
5320 SASBADDUINTDESC(sb, *indent, type_data->medium_type,
5321 %u, medium_type, "Medium Type");
5322
5323 cur_field_len =
5324 __offsetof(struct scsi_medium_type_data,
5325 media_width) -
5326 __offsetof(struct scsi_medium_type_data,
5327 num_density_codes);
5328
5329 if (desc_remain < cur_field_len) {
5330 len_to_go -= desc_remain;
5331 cur_offset += desc_remain;
5332 continue;
5333 }
5334 len_to_go -= cur_field_len;
5335 cur_offset += cur_field_len;
5336 desc_remain -= cur_field_len;
5337
5338 SASBADDINTDESC(sb, *indent,
5339 type_data->num_density_codes, %d,
5340 num_density_codes, "Number of Density Codes");
5341 SASBADDNODE(sb, *indent, density_code_list);
5342 for (i = 0; i < type_data->num_density_codes;
5343 i++) {
5344 SASBADDUINTDESC(sb, *indent,
5345 type_data->primary_density_codes[i], %u,
5346 density_code, "Density Code");
5347 }
5348 SASBENDNODE(sb, *indent, density_code_list);
5349
5350 SAFILLDENSSB(type_data, sb, *indent, media_width,
5351 desc_remain, len_to_go, cur_offset,
5352 "Media width");
5353 SAFILLDENSSB(type_data, sb, *indent, medium_length,
5354 desc_remain, len_to_go, cur_offset,
5355 "Medium length");
5356
5357 /*
5358 * Account for the two reserved bytes.
5359 */
5360 cur_field_len = sizeof(type_data->reserved2);
5361 if (desc_remain < cur_field_len) {
5362 len_to_go -= desc_remain;
5363 cur_offset += desc_remain;
5364 continue;
5365 }
5366 len_to_go -= cur_field_len;
5367 cur_offset += cur_field_len;
5368 desc_remain -= cur_field_len;
5369
5370 SAFILLDENSSBSTR(type_data, sb, *indent, assigning_org,
5371 desc_remain, len_to_go, cur_offset,
5372 "Assigning Organization");
5373 SAFILLDENSSBSTR(type_data, sb, *indent,
5374 medium_type_name, desc_remain, len_to_go,
5375 cur_offset, "Medium type name");
5376 SAFILLDENSSBSTR(type_data, sb, *indent, description,
5377 desc_remain, len_to_go, cur_offset, "Description");
5378
5379 }
5380 }
5381 if (need_close != 0) {
5382 SASBENDNODE(sb, *indent, density_entry);
5383 }
5384
5385bailout:
5386 return;
5387}
5388
5389/*
5390 * Fill an sbuf with density data information
5391 */
5392static void
5393safilldensitysb(struct sa_softc *softc, int *indent, struct sbuf *sb)
5394{
5395 int i, is_density;
5396
5397 SASBADDNODE(sb, *indent, mtdensity);
5398 SASBADDUINTDESC(sb, *indent, softc->media_density, %u, media_density,
5399 "Current Medium Density");
5400 is_density = 0;
5401 for (i = 0; i < SA_DENSITY_TYPES; i++) {
5402 int tmpint;
5403
5404 if (softc->density_info_valid[i] == 0)
5405 continue;
5406
5407 SASBADDNODE(sb, *indent, density_report);
5408 if (softc->density_type_bits[i] & SRDS_MEDIUM_TYPE) {
5409 tmpint = 1;
5410 is_density = 0;
5411 } else {
5412 tmpint = 0;
5413 is_density = 1;
5414 }
5415 SASBADDINTDESC(sb, *indent, tmpint, %d, medium_type_report,
5416 "Medium type report");
5417
5418 if (softc->density_type_bits[i] & SRDS_MEDIA)
5419 tmpint = 1;
5420 else
5421 tmpint = 0;
5422 SASBADDINTDESC(sb, *indent, tmpint, %d, media_report,
5423 "Media report");
5424
5425 safilldenstypesb(sb, indent, softc->density_info[i],
5426 softc->density_info_valid[i], is_density);
5427 SASBENDNODE(sb, *indent, density_report);
5428 }
5429 SASBENDNODE(sb, *indent, mtdensity);
5430}
5431
5432#endif /* _KERNEL */
5433
5434/*
5435 * Read tape block limits command.
5436 */
5437void
5438scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries,
5439 void (*cbfcnp)(struct cam_periph *, union ccb *),
5440 u_int8_t tag_action,
5441 struct scsi_read_block_limits_data *rlimit_buf,
5442 u_int8_t sense_len, u_int32_t timeout)
5443{
5444 struct scsi_read_block_limits *scsi_cmd;
5445
5446 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
5447 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len,
5448 sizeof(*scsi_cmd), timeout);
5449
5450 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes;
5451 bzero(scsi_cmd, sizeof(*scsi_cmd));
5452 scsi_cmd->opcode = READ_BLOCK_LIMITS;
5453}
5454
5455void
5456scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
5457 void (*cbfcnp)(struct cam_periph *, union ccb *),
5458 u_int8_t tag_action, int readop, int sli,
5459 int fixed, u_int32_t length, u_int8_t *data_ptr,
5460 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout)
5461{
5462 struct scsi_sa_rw *scsi_cmd;
5463 int read;
5464
5465 read = (readop & SCSI_RW_DIRMASK) == SCSI_RW_READ;
5466
5467 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes;
5468 scsi_cmd->opcode = read ? SA_READ : SA_WRITE;
5469 scsi_cmd->sli_fixed = 0;
5470 if (sli && read)
5471 scsi_cmd->sli_fixed |= SAR_SLI;
5472 if (fixed)
5473 scsi_cmd->sli_fixed |= SARW_FIXED;
5474 scsi_ulto3b(length, scsi_cmd->length);
5475 scsi_cmd->control = 0;
5476
5477 cam_fill_csio(csio, retries, cbfcnp, (read ? CAM_DIR_IN : CAM_DIR_OUT) |
5478 ((readop & SCSI_RW_BIO) != 0 ? CAM_DATA_BIO : 0),
5479 tag_action, data_ptr, dxfer_len, sense_len,
5480 sizeof(*scsi_cmd), timeout);
5481}
5482
5483void
5484scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
5485 void (*cbfcnp)(struct cam_periph *, union ccb *),
5486 u_int8_t tag_action, int immediate, int eot,
5487 int reten, int load, u_int8_t sense_len,
5488 u_int32_t timeout)
5489{
5490 struct scsi_load_unload *scsi_cmd;
5491
5492 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes;
5493 bzero(scsi_cmd, sizeof(*scsi_cmd));
5494 scsi_cmd->opcode = LOAD_UNLOAD;
5495 if (immediate)
5496 scsi_cmd->immediate = SLU_IMMED;
5497 if (eot)
5498 scsi_cmd->eot_reten_load |= SLU_EOT;
5499 if (reten)
5500 scsi_cmd->eot_reten_load |= SLU_RETEN;
5501 if (load)
5502 scsi_cmd->eot_reten_load |= SLU_LOAD;
5503
5504 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
5505 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout);
5506}
5507
5508void
5509scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
5510 void (*cbfcnp)(struct cam_periph *, union ccb *),
5511 u_int8_t tag_action, int immediate, u_int8_t sense_len,
5512 u_int32_t timeout)
5513{
5514 struct scsi_rewind *scsi_cmd;
5515
5516 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes;
5517 bzero(scsi_cmd, sizeof(*scsi_cmd));
5518 scsi_cmd->opcode = REWIND;
5519 if (immediate)
5520 scsi_cmd->immediate = SREW_IMMED;
5521
5522 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5523 0, sense_len, sizeof(*scsi_cmd), timeout);
5524}
5525
5526void
5527scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
5528 void (*cbfcnp)(struct cam_periph *, union ccb *),
5529 u_int8_t tag_action, scsi_space_code code,
5530 u_int32_t count, u_int8_t sense_len, u_int32_t timeout)
5531{
5532 struct scsi_space *scsi_cmd;
5533
5534 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes;
5535 scsi_cmd->opcode = SPACE;
5536 scsi_cmd->code = code;
5537 scsi_ulto3b(count, scsi_cmd->count);
5538 scsi_cmd->control = 0;
5539
5540 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5541 0, sense_len, sizeof(*scsi_cmd), timeout);
5542}
5543
5544void
5545scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
5546 void (*cbfcnp)(struct cam_periph *, union ccb *),
5547 u_int8_t tag_action, int immediate, int setmark,
5548 u_int32_t num_marks, u_int8_t sense_len,
5549 u_int32_t timeout)
5550{
5551 struct scsi_write_filemarks *scsi_cmd;
5552
5553 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes;
5554 bzero(scsi_cmd, sizeof(*scsi_cmd));
5555 scsi_cmd->opcode = WRITE_FILEMARKS;
5556 if (immediate)
5557 scsi_cmd->byte2 |= SWFMRK_IMMED;
5558 if (setmark)
5559 scsi_cmd->byte2 |= SWFMRK_WSMK;
5560
5561 scsi_ulto3b(num_marks, scsi_cmd->num_marks);
5562
5563 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5564 0, sense_len, sizeof(*scsi_cmd), timeout);
5565}
5566
5567/*
5568 * The reserve and release unit commands differ only by their opcodes.
5569 */
5570void
5571scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
5572 void (*cbfcnp)(struct cam_periph *, union ccb *),
5573 u_int8_t tag_action, int third_party,
5574 int third_party_id, u_int8_t sense_len,
5575 u_int32_t timeout, int reserve)
5576{
5577 struct scsi_reserve_release_unit *scsi_cmd;
5578
5579 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes;
5580 bzero(scsi_cmd, sizeof(*scsi_cmd));
5581
5582 if (reserve)
5583 scsi_cmd->opcode = RESERVE_UNIT;
5584 else
5585 scsi_cmd->opcode = RELEASE_UNIT;
5586
5587 if (third_party) {
5588 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY;
5589 scsi_cmd->lun_thirdparty |=
5590 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK);
5591 }
5592
5593 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5594 0, sense_len, sizeof(*scsi_cmd), timeout);
5595}
5596
5597void
5598scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
5599 void (*cbfcnp)(struct cam_periph *, union ccb *),
5600 u_int8_t tag_action, int immediate, int long_erase,
5601 u_int8_t sense_len, u_int32_t timeout)
5602{
5603 struct scsi_erase *scsi_cmd;
5604
5605 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes;
5606 bzero(scsi_cmd, sizeof(*scsi_cmd));
5607
5608 scsi_cmd->opcode = ERASE;
5609
5610 if (immediate)
5611 scsi_cmd->lun_imm_long |= SE_IMMED;
5612
5613 if (long_erase)
5614 scsi_cmd->lun_imm_long |= SE_LONG;
5615
5616 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
5617 0, sense_len, sizeof(*scsi_cmd), timeout);
5618}
5619
5620/*
5621 * Read Tape Position command.
5622 */
5623void
5624scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries,
5625 void (*cbfcnp)(struct cam_periph *, union ccb *),
5626 u_int8_t tag_action, int hardsoft,
5627 struct scsi_tape_position_data *sbp,
5628 u_int8_t sense_len, u_int32_t timeout)
5629{
5630 struct scsi_tape_read_position *scmd;
5631
5632 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
5633 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout);
5634 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
5635 bzero(scmd, sizeof(*scmd));
5636 scmd->opcode = READ_POSITION;
5637 scmd->byte1 = hardsoft;
5638}
5639
5640/*
5641 * Read Tape Position command.
5642 */
5643void
5644scsi_read_position_10(struct ccb_scsiio *csio, u_int32_t retries,
5645 void (*cbfcnp)(struct cam_periph *, union ccb *),
5646 u_int8_t tag_action, int service_action,
5647 u_int8_t *data_ptr, u_int32_t length,
5648 u_int32_t sense_len, u_int32_t timeout)
5649{
5650 struct scsi_tape_read_position *scmd;
5651
5652 cam_fill_csio(csio,
5653 retries,
5654 cbfcnp,
5655 /*flags*/CAM_DIR_IN,
5656 tag_action,
5657 /*data_ptr*/data_ptr,
5658 /*dxfer_len*/length,
5659 sense_len,
5660 sizeof(*scmd),
5661 timeout);
5662
5663
5664 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
5665 bzero(scmd, sizeof(*scmd));
5666 scmd->opcode = READ_POSITION;
5667 scmd->byte1 = service_action;
5668 /*
5669 * The length is only currently set (as of SSC4r03) if the extended
5670 * form is specified. The other forms have fixed lengths.
5671 */
5672 if (service_action == SA_RPOS_EXTENDED_FORM)
5673 scsi_ulto2b(length, scmd->length);
5674}
5675
5676/*
5677 * Set Tape Position command.
5678 */
5679void
5680scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries,
5681 void (*cbfcnp)(struct cam_periph *, union ccb *),
5682 u_int8_t tag_action, int hardsoft, u_int32_t blkno,
5683 u_int8_t sense_len, u_int32_t timeout)
5684{
5685 struct scsi_tape_locate *scmd;
5686
5687 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
5688 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout);
5689 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
5690 bzero(scmd, sizeof(*scmd));
5691 scmd->opcode = LOCATE;
5692 if (hardsoft)
5693 scmd->byte1 |= SA_SPOS_BT;
5694 scsi_ulto4b(blkno, scmd->blkaddr);
5695}
5696
5697/*
5698 * XXX KDM figure out how to make a compatibility function.
5699 */
5700void
5701scsi_locate_10(struct ccb_scsiio *csio, u_int32_t retries,
5702 void (*cbfcnp)(struct cam_periph *, union ccb *),
5703 u_int8_t tag_action, int immed, int cp, int hard,
5704 int64_t partition, u_int32_t block_address,
5705 int sense_len, u_int32_t timeout)
5706{
5707 struct scsi_tape_locate *scmd;
5708
5709 cam_fill_csio(csio,
5710 retries,
5711 cbfcnp,
5712 CAM_DIR_NONE,
5713 tag_action,
5714 /*data_ptr*/ NULL,
5715 /*dxfer_len*/ 0,
5716 sense_len,
5717 sizeof(*scmd),
5718 timeout);
5719 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
5720 bzero(scmd, sizeof(*scmd));
5721 scmd->opcode = LOCATE;
5722 if (immed)
5723 scmd->byte1 |= SA_SPOS_IMMED;
5724 if (cp)
5725 scmd->byte1 |= SA_SPOS_CP;
5726 if (hard)
5727 scmd->byte1 |= SA_SPOS_BT;
5728 scsi_ulto4b(block_address, scmd->blkaddr);
5729 scmd->partition = partition;
5730}
5731
5732void
5733scsi_locate_16(struct ccb_scsiio *csio, u_int32_t retries,
5734 void (*cbfcnp)(struct cam_periph *, union ccb *),
5735 u_int8_t tag_action, int immed, int cp, u_int8_t dest_type,
5736 int bam, int64_t partition, u_int64_t logical_id,
5737 int sense_len, u_int32_t timeout)
5738{
5739
5740 struct scsi_locate_16 *scsi_cmd;
5741
5742 cam_fill_csio(csio,
5743 retries,
5744 cbfcnp,
5745 /*flags*/CAM_DIR_NONE,
5746 tag_action,
5747 /*data_ptr*/NULL,
5748 /*dxfer_len*/0,
5749 sense_len,
5750 sizeof(*scsi_cmd),
5751 timeout);
5752
5753 scsi_cmd = (struct scsi_locate_16 *)&csio->cdb_io.cdb_bytes;
5754 bzero(scsi_cmd, sizeof(*scsi_cmd));
5755 scsi_cmd->opcode = LOCATE_16;
5756 if (immed)
5757 scsi_cmd->byte1 |= SA_LC_IMMEDIATE;
5758 if (cp)
5759 scsi_cmd->byte1 |= SA_LC_CP;
5760 scsi_cmd->byte1 |= (dest_type << SA_LC_DEST_TYPE_SHIFT);
5761
5762 scsi_cmd->byte2 |= bam;
5763 scsi_cmd->partition = partition;
5764 scsi_u64to8b(logical_id, scsi_cmd->logical_id);
5765}
5766
5767void
5768scsi_report_density_support(struct ccb_scsiio *csio, u_int32_t retries,
5769 void (*cbfcnp)(struct cam_periph *, union ccb *),
5770 u_int8_t tag_action, int media, int medium_type,
5771 u_int8_t *data_ptr, u_int32_t length,
5772 u_int32_t sense_len, u_int32_t timeout)
5773{
5774 struct scsi_report_density_support *scsi_cmd;
5775
5776 scsi_cmd =(struct scsi_report_density_support *)&csio->cdb_io.cdb_bytes;
5777 bzero(scsi_cmd, sizeof(*scsi_cmd));
5778
5779 scsi_cmd->opcode = REPORT_DENSITY_SUPPORT;
5780 if (media != 0)
5781 scsi_cmd->byte1 |= SRDS_MEDIA;
5782 if (medium_type != 0)
5783 scsi_cmd->byte1 |= SRDS_MEDIUM_TYPE;
5784
5785 scsi_ulto2b(length, scsi_cmd->length);
5786
5787 cam_fill_csio(csio,
5788 retries,
5789 cbfcnp,
5790 /*flags*/CAM_DIR_IN,
5791 tag_action,
5792 /*data_ptr*/data_ptr,
5793 /*dxfer_len*/length,
5794 sense_len,
5795 sizeof(*scsi_cmd),
5796 timeout);
5797}
5798
5799void
5800scsi_set_capacity(struct ccb_scsiio *csio, u_int32_t retries,
5801 void (*cbfcnp)(struct cam_periph *, union ccb *),
5802 u_int8_t tag_action, int byte1, u_int32_t proportion,
5803 u_int32_t sense_len, u_int32_t timeout)
5804{
5805 struct scsi_set_capacity *scsi_cmd;
5806
5807 scsi_cmd = (struct scsi_set_capacity *)&csio->cdb_io.cdb_bytes;
5808 bzero(scsi_cmd, sizeof(*scsi_cmd));
5809
5810 scsi_cmd->opcode = SET_CAPACITY;
5811
5812 scsi_cmd->byte1 = byte1;
5813 scsi_ulto2b(proportion, scsi_cmd->cap_proportion);
5814
5815 cam_fill_csio(csio,
5816 retries,
5817 cbfcnp,
5818 /*flags*/CAM_DIR_NONE,
5819 tag_action,
5820 /*data_ptr*/NULL,
5821 /*dxfer_len*/0,
5822 sense_len,
5823 sizeof(*scsi_cmd),
5824 timeout);
5825}
5826
5827void
5828scsi_format_medium(struct ccb_scsiio *csio, u_int32_t retries,
5829 void (*cbfcnp)(struct cam_periph *, union ccb *),
5830 u_int8_t tag_action, int byte1, int byte2,
5831 u_int8_t *data_ptr, u_int32_t dxfer_len,
5832 u_int32_t sense_len, u_int32_t timeout)
5833{
5834 struct scsi_format_medium *scsi_cmd;
5835
5836 scsi_cmd = (struct scsi_format_medium*)&csio->cdb_io.cdb_bytes;
5837 bzero(scsi_cmd, sizeof(*scsi_cmd));
5838
5839 scsi_cmd->opcode = FORMAT_MEDIUM;
5840
5841 scsi_cmd->byte1 = byte1;
5842 scsi_cmd->byte2 = byte2;
5843
5844 scsi_ulto2b(dxfer_len, scsi_cmd->length);
5845
5846 cam_fill_csio(csio,
5847 retries,
5848 cbfcnp,
5849 /*flags*/(dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
5850 tag_action,
5851 /*data_ptr*/ data_ptr,
5852 /*dxfer_len*/ dxfer_len,
5853 sense_len,
5854 sizeof(*scsi_cmd),
5855 timeout);
5856}
5857
5858void
5859scsi_allow_overwrite(struct ccb_scsiio *csio, u_int32_t retries,
5860 void (*cbfcnp)(struct cam_periph *, union ccb *),
5861 u_int8_t tag_action, int allow_overwrite, int partition,
5862 u_int64_t logical_id, u_int32_t sense_len, u_int32_t timeout)
5863{
5864 struct scsi_allow_overwrite *scsi_cmd;
5865
5866 scsi_cmd = (struct scsi_allow_overwrite *)&csio->cdb_io.cdb_bytes;
5867 bzero(scsi_cmd, sizeof(*scsi_cmd));
5868
5869 scsi_cmd->opcode = ALLOW_OVERWRITE;
5870
5871 scsi_cmd->allow_overwrite = allow_overwrite;
5872 scsi_cmd->partition = partition;
5873 scsi_u64to8b(logical_id, scsi_cmd->logical_id);
5874
5875 cam_fill_csio(csio,
5876 retries,
5877 cbfcnp,
5878 CAM_DIR_NONE,
5879 tag_action,
5880 /*data_ptr*/ NULL,
5881 /*dxfer_len*/ 0,
5882 sense_len,
5883 sizeof(*scsi_cmd),
5884 timeout);
5885}
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