1/*
| 1/*
|
2 * $FreeBSD: head/sys/cam/scsi/scsi_sa.c 58934 2000-04-02 15:24:56Z phk $
| 2 * $FreeBSD: head/sys/cam/scsi/scsi_sa.c 59249 2000-04-15 05:54:02Z phk $
|
3 *
4 * Implementation of SCSI Sequential Access Peripheral driver for CAM.
5 *
6 * Copyright (c) 1999, 2000 Matthew Jacob
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification, immediately at the beginning of the file.
15 * 2. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 */
31
32#include <sys/param.h>
33#include <sys/queue.h>
34#ifdef _KERNEL
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#endif
38#include <sys/types.h>
39#include <sys/buf.h>
40#include <sys/malloc.h>
41#include <sys/mtio.h>
42#include <sys/conf.h>
43#include <sys/buf.h>
44#include <sys/devicestat.h>
45#include <machine/limits.h>
46
47#ifndef _KERNEL
48#include <stdio.h>
49#include <string.h>
50#endif
51
52#include <cam/cam.h>
53#include <cam/cam_ccb.h>
54#include <cam/cam_extend.h>
55#include <cam/cam_periph.h>
56#include <cam/cam_xpt_periph.h>
57#include <cam/cam_debug.h>
58
59#include <cam/scsi/scsi_all.h>
60#include <cam/scsi/scsi_message.h>
61#include <cam/scsi/scsi_sa.h>
62
63#ifdef _KERNEL
64
65#include <opt_sa.h>
66
67#ifndef SA_SPACE_TIMEOUT
68#define SA_SPACE_TIMEOUT 1 * 60
69#endif
70#ifndef SA_REWIND_TIMEOUT
71#define SA_REWIND_TIMEOUT 2 * 60
72#endif
73#ifndef SA_ERASE_TIMEOUT
74#define SA_ERASE_TIMEOUT 4 * 60
75#endif
76
77#define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000)
78#define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000)
79#define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000)
80
81/*
82 * Additional options that can be set for config: SA_1FM_AT_EOT
83 */
84
85#ifndef UNUSED_PARAMETER
86#define UNUSED_PARAMETER(x) x = x
87#endif
88
89#define QFRLS(ccb) \
90 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \
91 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE)
92
93/*
94 * Driver states
95 */
96
97
98typedef enum {
99 SA_STATE_NORMAL, SA_STATE_ABNORMAL
100} sa_state;
101
102typedef enum {
103 SA_CCB_BUFFER_IO,
104 SA_CCB_WAITING
105} sa_ccb_types;
106
107#define ccb_type ppriv_field0
108#define ccb_bp ppriv_ptr1
109
110typedef enum {
111 SA_FLAG_OPEN = 0x0001,
112 SA_FLAG_FIXED = 0x0002,
113 SA_FLAG_TAPE_LOCKED = 0x0004,
114 SA_FLAG_TAPE_MOUNTED = 0x0008,
115 SA_FLAG_TAPE_WP = 0x0010,
116 SA_FLAG_TAPE_WRITTEN = 0x0020,
117 SA_FLAG_EOM_PENDING = 0x0040,
118 SA_FLAG_EIO_PENDING = 0x0080,
119 SA_FLAG_EOF_PENDING = 0x0100,
120 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING|
121 SA_FLAG_EOF_PENDING),
122 SA_FLAG_INVALID = 0x0200,
123 SA_FLAG_COMP_ENABLED = 0x0400,
124 SA_FLAG_COMP_SUPP = 0x0800,
125 SA_FLAG_COMP_UNSUPP = 0x1000,
126 SA_FLAG_TAPE_FROZEN = 0x2000
127} sa_flags;
128
129typedef enum {
130 SA_MODE_REWIND = 0x00,
131 SA_MODE_NOREWIND = 0x01,
132 SA_MODE_OFFLINE = 0x02
133} sa_mode;
134
135typedef enum {
136 SA_PARAM_NONE = 0x00,
137 SA_PARAM_BLOCKSIZE = 0x01,
138 SA_PARAM_DENSITY = 0x02,
139 SA_PARAM_COMPRESSION = 0x04,
140 SA_PARAM_BUFF_MODE = 0x08,
141 SA_PARAM_NUMBLOCKS = 0x10,
142 SA_PARAM_WP = 0x20,
143 SA_PARAM_SPEED = 0x40,
144 SA_PARAM_ALL = 0x7f
145} sa_params;
146
147typedef enum {
148 SA_QUIRK_NONE = 0x00,
149 SA_QUIRK_NOCOMP = 0x01, /* can't deal with compression at all */
150 SA_QUIRK_FIXED = 0x02, /* force fixed mode */
151 SA_QUIRK_VARIABLE = 0x04, /* force variable mode */
152 SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */
153 SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */
154 SA_QUIRK_NODREAD = 0x20 /* Don't try and dummy read density */
155} sa_quirks;
156
157/* units are bits 4-7, 16-21 (1024 units) */
158#define SAUNIT(DEV) \
159 (((minor(DEV) & 0xF0) >> 4) | ((minor(DEV) & 0x3f0000) >> 16))
160
161#define SAMODE(z) ((minor(z) & 0x3))
162#define SADENSITY(z) (((minor(z) >> 2) & 0x3))
163#define SA_IS_CTRL(z) (minor(z) & (1 << 29))
164
165#define SA_NOT_CTLDEV 0
166#define SA_CTLDEV 1
167
168#define SA_ATYPE_R 0
169#define SA_ATYPE_NR 1
170#define SA_ATYPE_ER 2
171
172#define SAMINOR(ctl, unit, mode, access) \
173 ((ctl << 29) | ((unit & 0x3f0) << 16) | ((unit & 0xf) << 4) | \
174 (mode << 0x2) | (access & 0x3))
175
176#define SA_NUM_MODES 4
177struct sa_devs {
178 dev_t ctl_dev;
179 struct sa_mode_devs {
180 dev_t r_dev;
181 dev_t nr_dev;
182 dev_t er_dev;
183 } mode_devs[SA_NUM_MODES];
184 dev_t r_dev;
185 dev_t nr_dev;
186 dev_t er_dev;
187};
188
189struct sa_softc {
190 sa_state state;
191 sa_flags flags;
192 sa_quirks quirks;
| 3 *
4 * Implementation of SCSI Sequential Access Peripheral driver for CAM.
5 *
6 * Copyright (c) 1999, 2000 Matthew Jacob
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification, immediately at the beginning of the file.
15 * 2. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 */
31
32#include <sys/param.h>
33#include <sys/queue.h>
34#ifdef _KERNEL
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#endif
38#include <sys/types.h>
39#include <sys/buf.h>
40#include <sys/malloc.h>
41#include <sys/mtio.h>
42#include <sys/conf.h>
43#include <sys/buf.h>
44#include <sys/devicestat.h>
45#include <machine/limits.h>
46
47#ifndef _KERNEL
48#include <stdio.h>
49#include <string.h>
50#endif
51
52#include <cam/cam.h>
53#include <cam/cam_ccb.h>
54#include <cam/cam_extend.h>
55#include <cam/cam_periph.h>
56#include <cam/cam_xpt_periph.h>
57#include <cam/cam_debug.h>
58
59#include <cam/scsi/scsi_all.h>
60#include <cam/scsi/scsi_message.h>
61#include <cam/scsi/scsi_sa.h>
62
63#ifdef _KERNEL
64
65#include <opt_sa.h>
66
67#ifndef SA_SPACE_TIMEOUT
68#define SA_SPACE_TIMEOUT 1 * 60
69#endif
70#ifndef SA_REWIND_TIMEOUT
71#define SA_REWIND_TIMEOUT 2 * 60
72#endif
73#ifndef SA_ERASE_TIMEOUT
74#define SA_ERASE_TIMEOUT 4 * 60
75#endif
76
77#define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000)
78#define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000)
79#define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000)
80
81/*
82 * Additional options that can be set for config: SA_1FM_AT_EOT
83 */
84
85#ifndef UNUSED_PARAMETER
86#define UNUSED_PARAMETER(x) x = x
87#endif
88
89#define QFRLS(ccb) \
90 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \
91 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE)
92
93/*
94 * Driver states
95 */
96
97
98typedef enum {
99 SA_STATE_NORMAL, SA_STATE_ABNORMAL
100} sa_state;
101
102typedef enum {
103 SA_CCB_BUFFER_IO,
104 SA_CCB_WAITING
105} sa_ccb_types;
106
107#define ccb_type ppriv_field0
108#define ccb_bp ppriv_ptr1
109
110typedef enum {
111 SA_FLAG_OPEN = 0x0001,
112 SA_FLAG_FIXED = 0x0002,
113 SA_FLAG_TAPE_LOCKED = 0x0004,
114 SA_FLAG_TAPE_MOUNTED = 0x0008,
115 SA_FLAG_TAPE_WP = 0x0010,
116 SA_FLAG_TAPE_WRITTEN = 0x0020,
117 SA_FLAG_EOM_PENDING = 0x0040,
118 SA_FLAG_EIO_PENDING = 0x0080,
119 SA_FLAG_EOF_PENDING = 0x0100,
120 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING|
121 SA_FLAG_EOF_PENDING),
122 SA_FLAG_INVALID = 0x0200,
123 SA_FLAG_COMP_ENABLED = 0x0400,
124 SA_FLAG_COMP_SUPP = 0x0800,
125 SA_FLAG_COMP_UNSUPP = 0x1000,
126 SA_FLAG_TAPE_FROZEN = 0x2000
127} sa_flags;
128
129typedef enum {
130 SA_MODE_REWIND = 0x00,
131 SA_MODE_NOREWIND = 0x01,
132 SA_MODE_OFFLINE = 0x02
133} sa_mode;
134
135typedef enum {
136 SA_PARAM_NONE = 0x00,
137 SA_PARAM_BLOCKSIZE = 0x01,
138 SA_PARAM_DENSITY = 0x02,
139 SA_PARAM_COMPRESSION = 0x04,
140 SA_PARAM_BUFF_MODE = 0x08,
141 SA_PARAM_NUMBLOCKS = 0x10,
142 SA_PARAM_WP = 0x20,
143 SA_PARAM_SPEED = 0x40,
144 SA_PARAM_ALL = 0x7f
145} sa_params;
146
147typedef enum {
148 SA_QUIRK_NONE = 0x00,
149 SA_QUIRK_NOCOMP = 0x01, /* can't deal with compression at all */
150 SA_QUIRK_FIXED = 0x02, /* force fixed mode */
151 SA_QUIRK_VARIABLE = 0x04, /* force variable mode */
152 SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */
153 SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */
154 SA_QUIRK_NODREAD = 0x20 /* Don't try and dummy read density */
155} sa_quirks;
156
157/* units are bits 4-7, 16-21 (1024 units) */
158#define SAUNIT(DEV) \
159 (((minor(DEV) & 0xF0) >> 4) | ((minor(DEV) & 0x3f0000) >> 16))
160
161#define SAMODE(z) ((minor(z) & 0x3))
162#define SADENSITY(z) (((minor(z) >> 2) & 0x3))
163#define SA_IS_CTRL(z) (minor(z) & (1 << 29))
164
165#define SA_NOT_CTLDEV 0
166#define SA_CTLDEV 1
167
168#define SA_ATYPE_R 0
169#define SA_ATYPE_NR 1
170#define SA_ATYPE_ER 2
171
172#define SAMINOR(ctl, unit, mode, access) \
173 ((ctl << 29) | ((unit & 0x3f0) << 16) | ((unit & 0xf) << 4) | \
174 (mode << 0x2) | (access & 0x3))
175
176#define SA_NUM_MODES 4
177struct sa_devs {
178 dev_t ctl_dev;
179 struct sa_mode_devs {
180 dev_t r_dev;
181 dev_t nr_dev;
182 dev_t er_dev;
183 } mode_devs[SA_NUM_MODES];
184 dev_t r_dev;
185 dev_t nr_dev;
186 dev_t er_dev;
187};
188
189struct sa_softc {
190 sa_state state;
191 sa_flags flags;
192 sa_quirks quirks;
|
193 struct buf_queue_head buf_queue;
| 193 struct bio_queue_head bio_queue;
|
194 int queue_count;
195 struct devstat device_stats;
196 struct sa_devs devs;
197 int blk_gran;
198 int blk_mask;
199 int blk_shift;
200 u_int32_t max_blk;
201 u_int32_t min_blk;
202 u_int32_t comp_algorithm;
203 u_int32_t saved_comp_algorithm;
204 u_int32_t media_blksize;
205 u_int32_t last_media_blksize;
206 u_int32_t media_numblks;
207 u_int8_t media_density;
208 u_int8_t speed;
209 u_int8_t scsi_rev;
210 u_int8_t dsreg; /* mtio mt_dsreg, redux */
211 int buffer_mode;
212 int filemarks;
213 union ccb saved_ccb;
214
215 /*
216 * Relative to BOT Location.
217 */
218 daddr_t fileno;
219 daddr_t blkno;
220
221 /*
222 * Latched Error Info
223 */
224 struct {
225 struct scsi_sense_data _last_io_sense;
226 u_int32_t _last_io_resid;
227 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN];
228 struct scsi_sense_data _last_ctl_sense;
229 u_int32_t _last_ctl_resid;
230 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN];
231#define last_io_sense errinfo._last_io_sense
232#define last_io_resid errinfo._last_io_resid
233#define last_io_cdb errinfo._last_io_cdb
234#define last_ctl_sense errinfo._last_ctl_sense
235#define last_ctl_resid errinfo._last_ctl_resid
236#define last_ctl_cdb errinfo._last_ctl_cdb
237 } errinfo;
238 /*
239 * Misc other flags/state
240 */
241 u_int32_t
242 : 31,
243 ctrl_mode : 1; /* control device open */
244};
245
246struct sa_quirk_entry {
247 struct scsi_inquiry_pattern inq_pat; /* matching pattern */
248 sa_quirks quirks; /* specific quirk type */
249 u_int32_t prefblk; /* preferred blocksize when in fixed mode */
250};
251
252static struct sa_quirk_entry sa_quirk_table[] =
253{
254 {
255 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
256 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
257 },
258 {
259 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
260 "Python*", "*"}, SA_QUIRK_NODREAD, 0
261 },
262 {
263 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
264 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
265 },
266 {
267 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
268 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
269 },
270 {
271 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
272 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
273 },
274 {
275 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
276 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
277 },
278 {
279 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
280 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
281 },
282 {
283 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
284 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
285 },
286 {
287 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA",
288 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
289 },
290 { /* jreynold@primenet.com */
291 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
292 "STT8000N*", "*"}, SA_QUIRK_1FM, 0
293 },
294 { /* mike@sentex.net */
295 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
296 "STT20000*", "*"}, SA_QUIRK_1FM, 0
297 },
298 {
299 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
300 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
301 },
302 {
303 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
304 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
305 },
306 {
307 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
308 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
309 },
310 {
311 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
312 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
313 },
314 {
315 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
316 " SLR*", "*"}, SA_QUIRK_1FM, 0
317 },
318 {
319 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
320 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
321 },
322 {
323 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
324 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
325 }
326};
327
328static d_open_t saopen;
329static d_close_t saclose;
330static d_strategy_t sastrategy;
331static d_ioctl_t saioctl;
332static periph_init_t sainit;
333static periph_ctor_t saregister;
334static periph_oninv_t saoninvalidate;
335static periph_dtor_t sacleanup;
336static periph_start_t sastart;
337static void saasync(void *callback_arg, u_int32_t code,
338 struct cam_path *path, void *arg);
339static void sadone(struct cam_periph *periph,
340 union ccb *start_ccb);
341static int saerror(union ccb *ccb, u_int32_t cam_flags,
342 u_int32_t sense_flags);
343static int sacheckeod(struct cam_periph *periph);
344static int sagetparams(struct cam_periph *periph,
345 sa_params params_to_get,
346 u_int32_t *blocksize, u_int8_t *density,
347 u_int32_t *numblocks, int *buff_mode,
348 u_int8_t *write_protect, u_int8_t *speed,
349 int *comp_supported, int *comp_enabled,
350 u_int32_t *comp_algorithm,
351 sa_comp_t *comp_page);
352static int sasetparams(struct cam_periph *periph,
353 sa_params params_to_set,
354 u_int32_t blocksize, u_int8_t density,
355 u_int32_t comp_algorithm,
356 u_int32_t sense_flags);
357static void saprevent(struct cam_periph *periph, int action);
358static int sarewind(struct cam_periph *periph);
359static int saspace(struct cam_periph *periph, int count,
360 scsi_space_code code);
361static int samount(struct cam_periph *, int, dev_t);
362static int saretension(struct cam_periph *periph);
363static int sareservereleaseunit(struct cam_periph *periph,
364 int reserve);
365static int saloadunload(struct cam_periph *periph, int load);
366static int saerase(struct cam_periph *periph, int longerase);
367static int sawritefilemarks(struct cam_periph *periph,
368 int nmarks, int setmarks);
369static int sardpos(struct cam_periph *periph, int, u_int32_t *);
370static int sasetpos(struct cam_periph *periph, int, u_int32_t *);
371
372
373static struct periph_driver sadriver =
374{
375 sainit, "sa",
376 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0
377};
378
379DATA_SET(periphdriver_set, sadriver);
380
381/* For 2.2-stable support */
382#ifndef D_TAPE
383#define D_TAPE 0
384#endif
385
386#define SA_CDEV_MAJOR 14
387
388static struct cdevsw sa_cdevsw = {
389 /* open */ saopen,
390 /* close */ saclose,
391 /* read */ physread,
392 /* write */ physwrite,
393 /* ioctl */ saioctl,
394 /* poll */ nopoll,
395 /* mmap */ nommap,
396 /* strategy */ sastrategy,
397 /* name */ "sa",
398 /* maj */ SA_CDEV_MAJOR,
399 /* dump */ nodump,
400 /* psize */ nopsize,
401 /* flags */ D_TAPE,
402 /* bmaj */ -1
403};
404
405static struct extend_array *saperiphs;
406
407static int
408saopen(dev_t dev, int flags, int fmt, struct proc *p)
409{
410 struct cam_periph *periph;
411 struct sa_softc *softc;
412 int unit;
413 int mode;
414 int density;
415 int error;
416 int s;
417
418 unit = SAUNIT(dev);
419 mode = SAMODE(dev);
420 density = SADENSITY(dev);
421
422 s = splsoftcam();
423 periph = cam_extend_get(saperiphs, unit);
424 if (periph == NULL) {
425 (void) splx(s);
426 return (ENXIO);
427 }
428 softc = (struct sa_softc *)periph->softc;
429 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
430 splx(s);
431 return (error);
432 }
433 splx(s);
434
435 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
436 ("saopen(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
437
438 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
439 cam_periph_unlock(periph);
440 return (ENXIO);
441 }
442 if (SA_IS_CTRL(dev)) {
443 softc->ctrl_mode = 1;
444 cam_periph_unlock(periph);
445 return (0);
446 }
447
448
449 if (softc->flags & SA_FLAG_OPEN) {
450 error = EBUSY;
451 } else if (softc->flags & SA_FLAG_INVALID) {
452 error = ENXIO;
453 } else {
454 /*
455 * The function samount ensures media is loaded and ready.
456 * It also does a device RESERVE if the tape isn't yet mounted.
457 */
458 error = samount(periph, flags, dev);
459 }
460
461 if (error) {
462 cam_periph_release(periph);
463 } else {
464 saprevent(periph, PR_PREVENT);
465 softc->flags |= SA_FLAG_OPEN;
466 }
467 cam_periph_unlock(periph);
468 return (error);
469}
470
471static int
472saclose(dev_t dev, int flag, int fmt, struct proc *p)
473{
474 struct cam_periph *periph;
475 struct sa_softc *softc;
476 int unit, mode, error, writing, tmp;
477 int closedbits = SA_FLAG_OPEN;
478
479 unit = SAUNIT(dev);
480 mode = SAMODE(dev);
481 periph = cam_extend_get(saperiphs, unit);
482 if (periph == NULL)
483 return (ENXIO);
484
485 softc = (struct sa_softc *)periph->softc;
486
487 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
488 ("saclose(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
489
490
491 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) {
492 return (error);
493 }
494
495 if (SA_IS_CTRL(dev)) {
496 softc->ctrl_mode = 0;
497 cam_periph_release(periph);
498 cam_periph_unlock(periph);
499 return (0);
500 }
501
502 /*
503 * Were we writing the tape?
504 */
505 writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0;
506
507 /*
508 * See whether or not we need to write filemarks. If this
509 * fails, we probably have to assume we've lost tape
510 * position.
511 */
512 error = sacheckeod(periph);
513 if (error) {
514 xpt_print_path(periph->path);
515 printf("failed to write terminating filemark(s)\n");
516 softc->flags |= SA_FLAG_TAPE_FROZEN;
517 }
518
519 /*
520 * Whatever we end up doing, allow users to eject tapes from here on.
521 */
522 saprevent(periph, PR_ALLOW);
523
524 /*
525 * Decide how to end...
526 */
527 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
528 closedbits |= SA_FLAG_TAPE_FROZEN;
529 } else switch (mode) {
530 case SA_MODE_OFFLINE:
531 /*
532 * An 'offline' close is an unconditional release of
533 * frozen && mount conditions, irrespective of whether
534 * these operations succeeded. The reason for this is
535 * to allow at least some kind of programmatic way
536 * around our state getting all fouled up. If somebody
537 * issues an 'offline' command, that will be allowed
538 * to clear state.
539 */
540 (void) sarewind(periph);
541 (void) saloadunload(periph, FALSE);
542 closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN;
543 break;
544 case SA_MODE_REWIND:
545 /*
546 * If the rewind fails, return an error- if anyone cares,
547 * but not overwriting any previous error.
548 *
549 * We don't clear the notion of mounted here, but we do
550 * clear the notion of frozen if we successfully rewound.
551 */
552 tmp = sarewind(periph);
553 if (tmp) {
554 if (error != 0)
555 error = tmp;
556 } else {
557 closedbits |= SA_FLAG_TAPE_FROZEN;
558 }
559 break;
560 case SA_MODE_NOREWIND:
561 /*
562 * If we're not rewinding/unloading the tape, find out
563 * whether we need to back up over one of two filemarks
564 * we wrote (if we wrote two filemarks) so that appends
565 * from this point on will be sane.
566 */
567 if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) {
568 tmp = saspace(periph, -1, SS_FILEMARKS);
569 if (tmp) {
570 xpt_print_path(periph->path);
571 printf("unable to backspace over one of double"
572 " filemarks at end of tape\n");
573 xpt_print_path(periph->path);
574 printf("it is possible that this device"
575 " needs a SA_QUIRK_1FM quirk set for it\n");
576 softc->flags |= SA_FLAG_TAPE_FROZEN;
577 }
578 }
579 break;
580 default:
581 xpt_print_path(periph->path);
582 panic("unknown mode 0x%x in saclose\n", mode);
583 /* NOTREACHED */
584 break;
585 }
586
587 /*
588 * We wish to note here that there are no more filemarks to be written.
589 */
590 softc->filemarks = 0;
591 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
592
593 /*
594 * And we are no longer open for business.
595 */
596 softc->flags &= ~closedbits;
597
598 /*
599 * Inform users if tape state if frozen....
600 */
601 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
602 xpt_print_path(periph->path);
603 printf("tape is now frozen- use an OFFLINE, REWIND or MTEOM "
604 "command to clear this state.\n");
605 }
606
607 /* release the device if it is no longer mounted */
608 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0)
609 sareservereleaseunit(periph, FALSE);
610
611 cam_periph_unlock(periph);
612 cam_periph_release(periph);
613
614 return (error);
615}
616
617/*
618 * Actually translate the requested transfer into one the physical driver
619 * can understand. The transfer is described by a buf and will include
620 * only one physical transfer.
621 */
622static void
| 194 int queue_count;
195 struct devstat device_stats;
196 struct sa_devs devs;
197 int blk_gran;
198 int blk_mask;
199 int blk_shift;
200 u_int32_t max_blk;
201 u_int32_t min_blk;
202 u_int32_t comp_algorithm;
203 u_int32_t saved_comp_algorithm;
204 u_int32_t media_blksize;
205 u_int32_t last_media_blksize;
206 u_int32_t media_numblks;
207 u_int8_t media_density;
208 u_int8_t speed;
209 u_int8_t scsi_rev;
210 u_int8_t dsreg; /* mtio mt_dsreg, redux */
211 int buffer_mode;
212 int filemarks;
213 union ccb saved_ccb;
214
215 /*
216 * Relative to BOT Location.
217 */
218 daddr_t fileno;
219 daddr_t blkno;
220
221 /*
222 * Latched Error Info
223 */
224 struct {
225 struct scsi_sense_data _last_io_sense;
226 u_int32_t _last_io_resid;
227 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN];
228 struct scsi_sense_data _last_ctl_sense;
229 u_int32_t _last_ctl_resid;
230 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN];
231#define last_io_sense errinfo._last_io_sense
232#define last_io_resid errinfo._last_io_resid
233#define last_io_cdb errinfo._last_io_cdb
234#define last_ctl_sense errinfo._last_ctl_sense
235#define last_ctl_resid errinfo._last_ctl_resid
236#define last_ctl_cdb errinfo._last_ctl_cdb
237 } errinfo;
238 /*
239 * Misc other flags/state
240 */
241 u_int32_t
242 : 31,
243 ctrl_mode : 1; /* control device open */
244};
245
246struct sa_quirk_entry {
247 struct scsi_inquiry_pattern inq_pat; /* matching pattern */
248 sa_quirks quirks; /* specific quirk type */
249 u_int32_t prefblk; /* preferred blocksize when in fixed mode */
250};
251
252static struct sa_quirk_entry sa_quirk_table[] =
253{
254 {
255 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
256 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
257 },
258 {
259 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
260 "Python*", "*"}, SA_QUIRK_NODREAD, 0
261 },
262 {
263 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
264 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
265 },
266 {
267 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
268 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
269 },
270 {
271 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
272 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
273 },
274 {
275 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
276 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
277 },
278 {
279 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
280 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
281 },
282 {
283 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
284 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
285 },
286 {
287 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA",
288 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
289 },
290 { /* jreynold@primenet.com */
291 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
292 "STT8000N*", "*"}, SA_QUIRK_1FM, 0
293 },
294 { /* mike@sentex.net */
295 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
296 "STT20000*", "*"}, SA_QUIRK_1FM, 0
297 },
298 {
299 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
300 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
301 },
302 {
303 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
304 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
305 },
306 {
307 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
308 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
309 },
310 {
311 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
312 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
313 },
314 {
315 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
316 " SLR*", "*"}, SA_QUIRK_1FM, 0
317 },
318 {
319 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
320 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
321 },
322 {
323 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
324 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
325 }
326};
327
328static d_open_t saopen;
329static d_close_t saclose;
330static d_strategy_t sastrategy;
331static d_ioctl_t saioctl;
332static periph_init_t sainit;
333static periph_ctor_t saregister;
334static periph_oninv_t saoninvalidate;
335static periph_dtor_t sacleanup;
336static periph_start_t sastart;
337static void saasync(void *callback_arg, u_int32_t code,
338 struct cam_path *path, void *arg);
339static void sadone(struct cam_periph *periph,
340 union ccb *start_ccb);
341static int saerror(union ccb *ccb, u_int32_t cam_flags,
342 u_int32_t sense_flags);
343static int sacheckeod(struct cam_periph *periph);
344static int sagetparams(struct cam_periph *periph,
345 sa_params params_to_get,
346 u_int32_t *blocksize, u_int8_t *density,
347 u_int32_t *numblocks, int *buff_mode,
348 u_int8_t *write_protect, u_int8_t *speed,
349 int *comp_supported, int *comp_enabled,
350 u_int32_t *comp_algorithm,
351 sa_comp_t *comp_page);
352static int sasetparams(struct cam_periph *periph,
353 sa_params params_to_set,
354 u_int32_t blocksize, u_int8_t density,
355 u_int32_t comp_algorithm,
356 u_int32_t sense_flags);
357static void saprevent(struct cam_periph *periph, int action);
358static int sarewind(struct cam_periph *periph);
359static int saspace(struct cam_periph *periph, int count,
360 scsi_space_code code);
361static int samount(struct cam_periph *, int, dev_t);
362static int saretension(struct cam_periph *periph);
363static int sareservereleaseunit(struct cam_periph *periph,
364 int reserve);
365static int saloadunload(struct cam_periph *periph, int load);
366static int saerase(struct cam_periph *periph, int longerase);
367static int sawritefilemarks(struct cam_periph *periph,
368 int nmarks, int setmarks);
369static int sardpos(struct cam_periph *periph, int, u_int32_t *);
370static int sasetpos(struct cam_periph *periph, int, u_int32_t *);
371
372
373static struct periph_driver sadriver =
374{
375 sainit, "sa",
376 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0
377};
378
379DATA_SET(periphdriver_set, sadriver);
380
381/* For 2.2-stable support */
382#ifndef D_TAPE
383#define D_TAPE 0
384#endif
385
386#define SA_CDEV_MAJOR 14
387
388static struct cdevsw sa_cdevsw = {
389 /* open */ saopen,
390 /* close */ saclose,
391 /* read */ physread,
392 /* write */ physwrite,
393 /* ioctl */ saioctl,
394 /* poll */ nopoll,
395 /* mmap */ nommap,
396 /* strategy */ sastrategy,
397 /* name */ "sa",
398 /* maj */ SA_CDEV_MAJOR,
399 /* dump */ nodump,
400 /* psize */ nopsize,
401 /* flags */ D_TAPE,
402 /* bmaj */ -1
403};
404
405static struct extend_array *saperiphs;
406
407static int
408saopen(dev_t dev, int flags, int fmt, struct proc *p)
409{
410 struct cam_periph *periph;
411 struct sa_softc *softc;
412 int unit;
413 int mode;
414 int density;
415 int error;
416 int s;
417
418 unit = SAUNIT(dev);
419 mode = SAMODE(dev);
420 density = SADENSITY(dev);
421
422 s = splsoftcam();
423 periph = cam_extend_get(saperiphs, unit);
424 if (periph == NULL) {
425 (void) splx(s);
426 return (ENXIO);
427 }
428 softc = (struct sa_softc *)periph->softc;
429 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
430 splx(s);
431 return (error);
432 }
433 splx(s);
434
435 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
436 ("saopen(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
437
438 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
439 cam_periph_unlock(periph);
440 return (ENXIO);
441 }
442 if (SA_IS_CTRL(dev)) {
443 softc->ctrl_mode = 1;
444 cam_periph_unlock(periph);
445 return (0);
446 }
447
448
449 if (softc->flags & SA_FLAG_OPEN) {
450 error = EBUSY;
451 } else if (softc->flags & SA_FLAG_INVALID) {
452 error = ENXIO;
453 } else {
454 /*
455 * The function samount ensures media is loaded and ready.
456 * It also does a device RESERVE if the tape isn't yet mounted.
457 */
458 error = samount(periph, flags, dev);
459 }
460
461 if (error) {
462 cam_periph_release(periph);
463 } else {
464 saprevent(periph, PR_PREVENT);
465 softc->flags |= SA_FLAG_OPEN;
466 }
467 cam_periph_unlock(periph);
468 return (error);
469}
470
471static int
472saclose(dev_t dev, int flag, int fmt, struct proc *p)
473{
474 struct cam_periph *periph;
475 struct sa_softc *softc;
476 int unit, mode, error, writing, tmp;
477 int closedbits = SA_FLAG_OPEN;
478
479 unit = SAUNIT(dev);
480 mode = SAMODE(dev);
481 periph = cam_extend_get(saperiphs, unit);
482 if (periph == NULL)
483 return (ENXIO);
484
485 softc = (struct sa_softc *)periph->softc;
486
487 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
488 ("saclose(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags));
489
490
491 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) {
492 return (error);
493 }
494
495 if (SA_IS_CTRL(dev)) {
496 softc->ctrl_mode = 0;
497 cam_periph_release(periph);
498 cam_periph_unlock(periph);
499 return (0);
500 }
501
502 /*
503 * Were we writing the tape?
504 */
505 writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0;
506
507 /*
508 * See whether or not we need to write filemarks. If this
509 * fails, we probably have to assume we've lost tape
510 * position.
511 */
512 error = sacheckeod(periph);
513 if (error) {
514 xpt_print_path(periph->path);
515 printf("failed to write terminating filemark(s)\n");
516 softc->flags |= SA_FLAG_TAPE_FROZEN;
517 }
518
519 /*
520 * Whatever we end up doing, allow users to eject tapes from here on.
521 */
522 saprevent(periph, PR_ALLOW);
523
524 /*
525 * Decide how to end...
526 */
527 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
528 closedbits |= SA_FLAG_TAPE_FROZEN;
529 } else switch (mode) {
530 case SA_MODE_OFFLINE:
531 /*
532 * An 'offline' close is an unconditional release of
533 * frozen && mount conditions, irrespective of whether
534 * these operations succeeded. The reason for this is
535 * to allow at least some kind of programmatic way
536 * around our state getting all fouled up. If somebody
537 * issues an 'offline' command, that will be allowed
538 * to clear state.
539 */
540 (void) sarewind(periph);
541 (void) saloadunload(periph, FALSE);
542 closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN;
543 break;
544 case SA_MODE_REWIND:
545 /*
546 * If the rewind fails, return an error- if anyone cares,
547 * but not overwriting any previous error.
548 *
549 * We don't clear the notion of mounted here, but we do
550 * clear the notion of frozen if we successfully rewound.
551 */
552 tmp = sarewind(periph);
553 if (tmp) {
554 if (error != 0)
555 error = tmp;
556 } else {
557 closedbits |= SA_FLAG_TAPE_FROZEN;
558 }
559 break;
560 case SA_MODE_NOREWIND:
561 /*
562 * If we're not rewinding/unloading the tape, find out
563 * whether we need to back up over one of two filemarks
564 * we wrote (if we wrote two filemarks) so that appends
565 * from this point on will be sane.
566 */
567 if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) {
568 tmp = saspace(periph, -1, SS_FILEMARKS);
569 if (tmp) {
570 xpt_print_path(periph->path);
571 printf("unable to backspace over one of double"
572 " filemarks at end of tape\n");
573 xpt_print_path(periph->path);
574 printf("it is possible that this device"
575 " needs a SA_QUIRK_1FM quirk set for it\n");
576 softc->flags |= SA_FLAG_TAPE_FROZEN;
577 }
578 }
579 break;
580 default:
581 xpt_print_path(periph->path);
582 panic("unknown mode 0x%x in saclose\n", mode);
583 /* NOTREACHED */
584 break;
585 }
586
587 /*
588 * We wish to note here that there are no more filemarks to be written.
589 */
590 softc->filemarks = 0;
591 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
592
593 /*
594 * And we are no longer open for business.
595 */
596 softc->flags &= ~closedbits;
597
598 /*
599 * Inform users if tape state if frozen....
600 */
601 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
602 xpt_print_path(periph->path);
603 printf("tape is now frozen- use an OFFLINE, REWIND or MTEOM "
604 "command to clear this state.\n");
605 }
606
607 /* release the device if it is no longer mounted */
608 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0)
609 sareservereleaseunit(periph, FALSE);
610
611 cam_periph_unlock(periph);
612 cam_periph_release(periph);
613
614 return (error);
615}
616
617/*
618 * Actually translate the requested transfer into one the physical driver
619 * can understand. The transfer is described by a buf and will include
620 * only one physical transfer.
621 */
622static void
|
623sastrategy(struct buf *bp)
| 623sastrategy(struct bio *bp)
|
624{
625 struct cam_periph *periph;
626 struct sa_softc *softc;
627 u_int unit;
628 int s;
629
| 624{
625 struct cam_periph *periph;
626 struct sa_softc *softc;
627 u_int unit;
628 int s;
629
|
630 if (SA_IS_CTRL(bp->b_dev)) {
631 bp->b_error = EINVAL;
| 630 if (SA_IS_CTRL(bp->bio_dev)) {
631 bp->bio_error = EINVAL;
|
632 goto bad;
633 }
| 632 goto bad;
633 }
|
634 unit = SAUNIT(bp->b_dev);
| 634 unit = SAUNIT(bp->bio_dev);
|
635 periph = cam_extend_get(saperiphs, unit);
636 if (periph == NULL) {
| 635 periph = cam_extend_get(saperiphs, unit);
636 if (periph == NULL) {
|
637 bp->b_error = ENXIO;
| 637 bp->bio_error = ENXIO;
|
638 goto bad;
639 }
640 softc = (struct sa_softc *)periph->softc;
641
642 s = splsoftcam();
643
644 if (softc->flags & SA_FLAG_INVALID) {
645 splx(s);
| 638 goto bad;
639 }
640 softc = (struct sa_softc *)periph->softc;
641
642 s = splsoftcam();
643
644 if (softc->flags & SA_FLAG_INVALID) {
645 splx(s);
|
646 bp->b_error = ENXIO;
| 646 bp->bio_error = ENXIO;
|
647 goto bad;
648 }
649
650 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
651 splx(s);
| 647 goto bad;
648 }
649
650 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
651 splx(s);
|
652 bp->b_error = EPERM;
| 652 bp->bio_error = EPERM;
|
653 goto bad;
654 }
655
656 splx(s);
657
658 /*
659 * If it's a null transfer, return immediatly
660 */
| 653 goto bad;
654 }
655
656 splx(s);
657
658 /*
659 * If it's a null transfer, return immediatly
660 */
|
661 if (bp->b_bcount == 0)
| 661 if (bp->bio_bcount == 0)
|
662 goto done;
663
664 /* valid request? */
665 if (softc->flags & SA_FLAG_FIXED) {
666 /*
667 * Fixed block device. The byte count must
668 * be a multiple of our block size.
669 */
670 if (((softc->blk_mask != ~0) &&
| 662 goto done;
663
664 /* valid request? */
665 if (softc->flags & SA_FLAG_FIXED) {
666 /*
667 * Fixed block device. The byte count must
668 * be a multiple of our block size.
669 */
670 if (((softc->blk_mask != ~0) &&
|
671 ((bp->b_bcount & softc->blk_mask) != 0)) ||
| 671 ((bp->bio_bcount & softc->blk_mask) != 0)) ||
|
672 ((softc->blk_mask == ~0) &&
| 672 ((softc->blk_mask == ~0) &&
|
673 ((bp->b_bcount % softc->min_blk) != 0))) {
| 673 ((bp->bio_bcount % softc->min_blk) != 0))) {
|
674 xpt_print_path(periph->path);
675 printf("Invalid request. Fixed block device "
676 "requests must be a multiple "
677 "of %d bytes\n", softc->min_blk);
| 674 xpt_print_path(periph->path);
675 printf("Invalid request. Fixed block device "
676 "requests must be a multiple "
677 "of %d bytes\n", softc->min_blk);
|
678 bp->b_error = EINVAL;
| 678 bp->bio_error = EINVAL;
|
679 goto bad;
680 }
| 679 goto bad;
680 }
|
681 } else if ((bp->b_bcount > softc->max_blk) ||
682 (bp->b_bcount < softc->min_blk) ||
683 (bp->b_bcount & softc->blk_mask) != 0) {
| 681 } else if ((bp->bio_bcount > softc->max_blk) ||
682 (bp->bio_bcount < softc->min_blk) ||
683 (bp->bio_bcount & softc->blk_mask) != 0) {
|
684
685 xpt_print_path(periph->path);
686 printf("Invalid request. Variable block device "
687 "requests must be ");
688 if (softc->blk_mask != 0) {
689 printf("a multiple of %d ", (0x1 << softc->blk_gran));
690 }
691 printf("between %d and %d bytes\n", softc->min_blk,
692 softc->max_blk);
| 684
685 xpt_print_path(periph->path);
686 printf("Invalid request. Variable block device "
687 "requests must be ");
688 if (softc->blk_mask != 0) {
689 printf("a multiple of %d ", (0x1 << softc->blk_gran));
690 }
691 printf("between %d and %d bytes\n", softc->min_blk,
692 softc->max_blk);
|
693 bp->b_error = EINVAL;
| 693 bp->bio_error = EINVAL;
|
694 goto bad;
695 }
696
697 /*
698 * Mask interrupts so that the device cannot be invalidated until
699 * after we are in the queue. Otherwise, we might not properly
700 * clean up one of the buffers.
701 */
702 s = splbio();
703
704 /*
705 * Place it at the end of the queue.
706 */
| 694 goto bad;
695 }
696
697 /*
698 * Mask interrupts so that the device cannot be invalidated until
699 * after we are in the queue. Otherwise, we might not properly
700 * clean up one of the buffers.
701 */
702 s = splbio();
703
704 /*
705 * Place it at the end of the queue.
706 */
|
707 bufq_insert_tail(&softc->buf_queue, bp);
| 707 bioq_insert_tail(&softc->bio_queue, bp);
|
708
709 softc->queue_count++;
710 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastrategy: enqueuing a %d "
| 708
709 softc->queue_count++;
710 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastrategy: enqueuing a %d "
|
711 "%s byte %s queue count now %d\n", (int) bp->b_bcount,
| 711 "%s byte %s queue count now %d\n", (int) bp->bio_bcount,
|
712 (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable",
| 712 (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable",
|
713 (bp->b_iocmd == BIO_READ)? "read" : "write", softc->queue_count));
| 713 (bp->bio_cmd == BIO_READ)? "read" : "write", softc->queue_count));
|
714
715 splx(s);
716
717 /*
718 * Schedule ourselves for performing the work.
719 */
720 xpt_schedule(periph, 1);
721
722 return;
723bad:
| 714
715 splx(s);
716
717 /*
718 * Schedule ourselves for performing the work.
719 */
720 xpt_schedule(periph, 1);
721
722 return;
723bad:
|
724 bp->b_ioflags |= BIO_ERROR;
| 724 bp->bio_flags |= BIO_ERROR;
|
725done:
726
727 /*
728 * Correctly set the buf to indicate a completed xfer
729 */
| 725done:
726
727 /*
728 * Correctly set the buf to indicate a completed xfer
729 */
|
730 bp->b_resid = bp->b_bcount;
| 730 bp->bio_resid = bp->bio_bcount;
|
731 biodone(bp);
732}
733
734static int
735saioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p)
736{
737 struct cam_periph *periph;
738 struct sa_softc *softc;
739 scsi_space_code spaceop;
740 int didlockperiph = 0;
741 int s;
742 int unit;
743 int mode;
744 int density;
745 int error = 0;
746
747 unit = SAUNIT(dev);
748 mode = SAMODE(dev);
749 density = SADENSITY(dev);
750 error = 0; /* shut up gcc */
751 spaceop = 0; /* shut up gcc */
752
753 periph = cam_extend_get(saperiphs, unit);
754 if (periph == NULL)
755 return (ENXIO);
756
757 softc = (struct sa_softc *)periph->softc;
758
759 /*
760 * Check for control mode accesses. We allow MTIOCGET and
761 * MTIOCERRSTAT (but need to be the only one open in order
762 * to clear latched status), and MTSETBSIZE, MTSETDNSTY
763 * and MTCOMP (but need to be the only one accessing this
764 * device to run those).
765 */
766
767 if (SA_IS_CTRL(dev)) {
768 switch (cmd) {
769 case MTIOCGETEOTMODEL:
770 case MTIOCGET:
771 break;
772 case MTIOCERRSTAT:
773 /*
774 * If the periph isn't already locked, lock it
775 * so our MTIOCERRSTAT can reset latched error stats.
776 *
777 * If the periph is already locked, skip it because
778 * we're just getting status and it'll be up to the
779 * other thread that has this device open to do
780 * an MTIOCERRSTAT that would clear latched status.
781 */
782 s = splsoftcam();
783 if ((periph->flags & CAM_PERIPH_LOCKED) == 0) {
784 error = cam_periph_lock(periph, PRIBIO|PCATCH);
785 if (error != 0) {
786 splx(s);
787 return (error);
788 }
789 didlockperiph = 1;
790 }
791 break;
792
793 case MTIOCSETEOTMODEL:
794 case MTSETBSIZ:
795 case MTSETDNSTY:
796 case MTCOMP:
797 /*
798 * We need to acquire the peripheral here rather
799 * than at open time because we are sharing writable
800 * access to data structures.
801 */
802 s = splsoftcam();
803 error = cam_periph_lock(periph, PRIBIO|PCATCH);
804 if (error != 0) {
805 splx(s);
806 return (error);
807 }
808 didlockperiph = 1;
809 break;
810
811 default:
812 return (EINVAL);
813 }
814 }
815
816 /*
817 * Find the device that the user is talking about
818 */
819 switch (cmd) {
820 case MTIOCGET:
821 {
822 struct mtget *g = (struct mtget *)arg;
823
824 /*
825 * If this isn't the control mode device, actually go out
826 * and ask the drive again what it's set to.
827 */
828 if (!SA_IS_CTRL(dev)) {
829 u_int8_t write_protect;
830 int comp_enabled, comp_supported;
831 error = sagetparams(periph, SA_PARAM_ALL,
832 &softc->media_blksize, &softc->media_density,
833 &softc->media_numblks, &softc->buffer_mode,
834 &write_protect, &softc->speed, &comp_supported,
835 &comp_enabled, &softc->comp_algorithm, NULL);
836 if (error)
837 break;
838 if (write_protect)
839 softc->flags |= SA_FLAG_TAPE_WP;
840 else
841 softc->flags &= ~SA_FLAG_TAPE_WP;
842 softc->flags &= ~(SA_FLAG_COMP_SUPP|
843 SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP);
844 if (comp_supported) {
845 if (softc->saved_comp_algorithm == 0)
846 softc->saved_comp_algorithm =
847 softc->comp_algorithm;
848 softc->flags |= SA_FLAG_COMP_SUPP;
849 if (comp_enabled)
850 softc->flags |= SA_FLAG_COMP_ENABLED;
851 } else
852 softc->flags |= SA_FLAG_COMP_UNSUPP;
853 }
854 bzero(g, sizeof(struct mtget));
855 g->mt_type = MT_ISAR;
856 if (softc->flags & SA_FLAG_COMP_UNSUPP) {
857 g->mt_comp = MT_COMP_UNSUPP;
858 g->mt_comp0 = MT_COMP_UNSUPP;
859 g->mt_comp1 = MT_COMP_UNSUPP;
860 g->mt_comp2 = MT_COMP_UNSUPP;
861 g->mt_comp3 = MT_COMP_UNSUPP;
862 } else {
863 if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) {
864 g->mt_comp = MT_COMP_DISABLED;
865 } else {
866 g->mt_comp = softc->comp_algorithm;
867 }
868 g->mt_comp0 = softc->comp_algorithm;
869 g->mt_comp1 = softc->comp_algorithm;
870 g->mt_comp2 = softc->comp_algorithm;
871 g->mt_comp3 = softc->comp_algorithm;
872 }
873 g->mt_density = softc->media_density;
874 g->mt_density0 = softc->media_density;
875 g->mt_density1 = softc->media_density;
876 g->mt_density2 = softc->media_density;
877 g->mt_density3 = softc->media_density;
878 g->mt_blksiz = softc->media_blksize;
879 g->mt_blksiz0 = softc->media_blksize;
880 g->mt_blksiz1 = softc->media_blksize;
881 g->mt_blksiz2 = softc->media_blksize;
882 g->mt_blksiz3 = softc->media_blksize;
883 g->mt_fileno = softc->fileno;
884 g->mt_blkno = softc->blkno;
885 g->mt_dsreg = (short) softc->dsreg;
886 error = 0;
887 break;
888 }
889 case MTIOCERRSTAT:
890 {
891 struct scsi_tape_errors *sep =
892 &((union mterrstat *)arg)->scsi_errstat;
893
894 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
895 ("saioctl: MTIOCERRSTAT\n"));
896
897 bzero(sep, sizeof(*sep));
898 sep->io_resid = softc->last_io_resid;
899 bcopy((caddr_t) &softc->last_io_sense, sep->io_sense,
900 sizeof (sep->io_sense));
901 bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb,
902 sizeof (sep->io_cdb));
903 sep->ctl_resid = softc->last_ctl_resid;
904 bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense,
905 sizeof (sep->ctl_sense));
906 bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb,
907 sizeof (sep->ctl_cdb));
908
909 if (SA_IS_CTRL(dev) == 0 || didlockperiph)
910 bzero((caddr_t) &softc->errinfo,
911 sizeof (softc->errinfo));
912 error = 0;
913 break;
914 }
915 case MTIOCTOP:
916 {
917 struct mtop *mt;
918 int count;
919
920 mt = (struct mtop *)arg;
921
922 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
923 ("saioctl: op=0x%x count=0x%x\n",
924 mt->mt_op, mt->mt_count));
925
926 count = mt->mt_count;
927 switch (mt->mt_op) {
928 case MTWEOF: /* write an end-of-file marker */
929 /* XXXX: NEED TO CLEAR SA_TAPE_WRITTEN */
930 error = sawritefilemarks(periph, count, FALSE);
931 break;
932 case MTWSS: /* write a setmark */
933 error = sawritefilemarks(periph, count, TRUE);
934 break;
935 case MTBSR: /* backward space record */
936 case MTFSR: /* forward space record */
937 case MTBSF: /* backward space file */
938 case MTFSF: /* forward space file */
939 case MTBSS: /* backward space setmark */
940 case MTFSS: /* forward space setmark */
941 case MTEOD: /* space to end of recorded medium */
942 {
943 int nmarks;
944
945 spaceop = SS_FILEMARKS;
946 nmarks = softc->filemarks;
947 error = sacheckeod(periph);
948 if (error) {
949 xpt_print_path(periph->path);
950 printf("EOD check prior to spacing failed\n");
951 softc->flags |= SA_FLAG_EIO_PENDING;
952 break;
953 }
954 nmarks -= softc->filemarks;
955 switch(mt->mt_op) {
956 case MTBSR:
957 count = -count;
958 /* FALLTHROUGH */
959 case MTFSR:
960 spaceop = SS_BLOCKS;
961 break;
962 case MTBSF:
963 count = -count;
964 /* FALLTHROUGH */
965 case MTFSF:
966 break;
967 case MTBSS:
968 count = -count;
969 /* FALLTHROUGH */
970 case MTFSS:
971 spaceop = SS_SETMARKS;
972 break;
973 case MTEOD:
974 spaceop = SS_EOD;
975 count = 0;
976 nmarks = 0;
977 break;
978 default:
979 error = EINVAL;
980 break;
981 }
982 if (error)
983 break;
984
985 nmarks = softc->filemarks;
986 /*
987 * XXX: Why are we checking again?
988 */
989 error = sacheckeod(periph);
990 if (error)
991 break;
992 nmarks -= softc->filemarks;
993 error = saspace(periph, count - nmarks, spaceop);
994 /*
995 * At this point, clear that we've written the tape
996 * and that we've written any filemarks. We really
997 * don't know what the applications wishes to do next-
998 * the sacheckeod's will make sure we terminated the
999 * tape correctly if we'd been writing, but the next
1000 * action the user application takes will set again
1001 * whether we need to write filemarks.
1002 */
1003 softc->flags &=
1004 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1005 softc->filemarks = 0;
1006 break;
1007 }
1008 case MTREW: /* rewind */
1009 (void) sacheckeod(periph);
1010 error = sarewind(periph);
1011 /* see above */
1012 softc->flags &=
1013 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1014 softc->filemarks = 0;
1015 break;
1016 case MTERASE: /* erase */
1017 error = saerase(periph, count);
1018 softc->flags &=
1019 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1020 break;
1021 case MTRETENS: /* re-tension tape */
1022 error = saretension(periph);
1023 softc->flags &=
1024 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1025 break;
1026 case MTOFFL: /* rewind and put the drive offline */
1027
1028 (void) sacheckeod(periph);
1029 /* see above */
1030 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
1031 softc->filemarks = 0;
1032
1033 error = sarewind(periph);
1034 /* clear the frozen flag anyway */
1035 softc->flags &= ~SA_FLAG_TAPE_FROZEN;
1036
1037 /*
1038 * Be sure to allow media removal before ejecting.
1039 */
1040
1041 saprevent(periph, PR_ALLOW);
1042 if (error == 0) {
1043 error = saloadunload(periph, FALSE);
1044 if (error == 0) {
1045 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1046 }
1047 }
1048 break;
1049
1050 case MTNOP: /* no operation, sets status only */
1051 case MTCACHE: /* enable controller cache */
1052 case MTNOCACHE: /* disable controller cache */
1053 error = 0;
1054 break;
1055
1056 case MTSETBSIZ: /* Set block size for device */
1057
1058 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count,
1059 0, 0, 0);
1060 if (error == 0) {
1061 softc->last_media_blksize =
1062 softc->media_blksize;
1063 softc->media_blksize = count;
1064 if (count) {
1065 softc->flags |= SA_FLAG_FIXED;
1066 if (powerof2(count)) {
1067 softc->blk_shift =
1068 ffs(count) - 1;
1069 softc->blk_mask = count - 1;
1070 } else {
1071 softc->blk_mask = ~0;
1072 softc->blk_shift = 0;
1073 }
1074 /*
1075 * Make the user's desire 'persistent'.
1076 */
1077 softc->quirks &= ~SA_QUIRK_VARIABLE;
1078 softc->quirks |= SA_QUIRK_FIXED;
1079 } else {
1080 softc->flags &= ~SA_FLAG_FIXED;
1081 if (softc->max_blk == 0) {
1082 softc->max_blk = ~0;
1083 }
1084 softc->blk_shift = 0;
1085 if (softc->blk_gran != 0) {
1086 softc->blk_mask =
1087 softc->blk_gran - 1;
1088 } else {
1089 softc->blk_mask = 0;
1090 }
1091 /*
1092 * Make the user's desire 'persistent'.
1093 */
1094 softc->quirks |= SA_QUIRK_VARIABLE;
1095 softc->quirks &= ~SA_QUIRK_FIXED;
1096 }
1097 }
1098 break;
1099 case MTSETDNSTY: /* Set density for device and mode */
1100 if (count > UCHAR_MAX) {
1101 error = EINVAL;
1102 break;
1103 } else {
1104 error = sasetparams(periph, SA_PARAM_DENSITY,
1105 0, count, 0, 0);
1106 }
1107 break;
1108 case MTCOMP: /* enable compression */
1109 /*
1110 * Some devices don't support compression, and
1111 * don't like it if you ask them for the
1112 * compression page.
1113 */
1114 if ((softc->quirks & SA_QUIRK_NOCOMP) ||
1115 (softc->flags & SA_FLAG_COMP_UNSUPP)) {
1116 error = ENODEV;
1117 break;
1118 }
1119 error = sasetparams(periph, SA_PARAM_COMPRESSION,
1120 0, 0, count, SF_NO_PRINT);
1121 break;
1122 default:
1123 error = EINVAL;
1124 }
1125 break;
1126 }
1127 case MTIOCIEOT:
1128 case MTIOCEEOT:
1129 error = 0;
1130 break;
1131 case MTIOCRDSPOS:
1132 error = sardpos(periph, 0, (u_int32_t *) arg);
1133 break;
1134 case MTIOCRDHPOS:
1135 error = sardpos(periph, 1, (u_int32_t *) arg);
1136 break;
1137 case MTIOCSLOCATE:
1138 error = sasetpos(periph, 0, (u_int32_t *) arg);
1139 break;
1140 case MTIOCHLOCATE:
1141 error = sasetpos(periph, 1, (u_int32_t *) arg);
1142 break;
1143 case MTIOCGETEOTMODEL:
1144 error = 0;
1145 if (softc->quirks & SA_QUIRK_1FM)
1146 mode = 1;
1147 else
1148 mode = 2;
1149 *((u_int32_t *) arg) = mode;
1150 break;
1151 case MTIOCSETEOTMODEL:
1152 error = 0;
1153 switch (*((u_int32_t *) arg)) {
1154 case 1:
1155 softc->quirks &= ~SA_QUIRK_2FM;
1156 softc->quirks |= SA_QUIRK_1FM;
1157 break;
1158 case 2:
1159 softc->quirks &= ~SA_QUIRK_1FM;
1160 softc->quirks |= SA_QUIRK_2FM;
1161 break;
1162 default:
1163 error = EINVAL;
1164 break;
1165 }
1166 break;
1167 default:
1168 error = cam_periph_ioctl(periph, cmd, arg, saerror);
1169 break;
1170 }
1171 if (didlockperiph) {
1172 cam_periph_unlock(periph);
1173 }
1174 return (error);
1175}
1176
1177static void
1178sainit(void)
1179{
1180 cam_status status;
1181 struct cam_path *path;
1182
1183 /*
1184 * Create our extend array for storing the devices we attach to.
1185 */
1186 saperiphs = cam_extend_new();
1187 if (saperiphs == NULL) {
1188 printf("sa: Failed to alloc extend array!\n");
1189 return;
1190 }
1191
1192 /*
1193 * Install a global async callback.
1194 */
1195 status = xpt_create_path(&path, NULL, CAM_XPT_PATH_ID,
1196 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
1197
1198 if (status == CAM_REQ_CMP) {
1199 /* Register the async callbacks of interrest */
1200 struct ccb_setasync csa; /*
1201 * This is an immediate CCB,
1202 * so using the stack is OK
1203 */
1204 xpt_setup_ccb(&csa.ccb_h, path, 5);
1205 csa.ccb_h.func_code = XPT_SASYNC_CB;
1206 csa.event_enable = AC_FOUND_DEVICE;
1207 csa.callback = saasync;
1208 csa.callback_arg = NULL;
1209 xpt_action((union ccb *)&csa);
1210 status = csa.ccb_h.status;
1211 xpt_free_path(path);
1212 }
1213
1214 if (status != CAM_REQ_CMP) {
1215 printf("sa: Failed to attach master async callback "
1216 "due to status 0x%x!\n", status);
1217 }
1218}
1219
1220static void
1221saoninvalidate(struct cam_periph *periph)
1222{
1223 struct sa_softc *softc;
| 731 biodone(bp);
732}
733
734static int
735saioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p)
736{
737 struct cam_periph *periph;
738 struct sa_softc *softc;
739 scsi_space_code spaceop;
740 int didlockperiph = 0;
741 int s;
742 int unit;
743 int mode;
744 int density;
745 int error = 0;
746
747 unit = SAUNIT(dev);
748 mode = SAMODE(dev);
749 density = SADENSITY(dev);
750 error = 0; /* shut up gcc */
751 spaceop = 0; /* shut up gcc */
752
753 periph = cam_extend_get(saperiphs, unit);
754 if (periph == NULL)
755 return (ENXIO);
756
757 softc = (struct sa_softc *)periph->softc;
758
759 /*
760 * Check for control mode accesses. We allow MTIOCGET and
761 * MTIOCERRSTAT (but need to be the only one open in order
762 * to clear latched status), and MTSETBSIZE, MTSETDNSTY
763 * and MTCOMP (but need to be the only one accessing this
764 * device to run those).
765 */
766
767 if (SA_IS_CTRL(dev)) {
768 switch (cmd) {
769 case MTIOCGETEOTMODEL:
770 case MTIOCGET:
771 break;
772 case MTIOCERRSTAT:
773 /*
774 * If the periph isn't already locked, lock it
775 * so our MTIOCERRSTAT can reset latched error stats.
776 *
777 * If the periph is already locked, skip it because
778 * we're just getting status and it'll be up to the
779 * other thread that has this device open to do
780 * an MTIOCERRSTAT that would clear latched status.
781 */
782 s = splsoftcam();
783 if ((periph->flags & CAM_PERIPH_LOCKED) == 0) {
784 error = cam_periph_lock(periph, PRIBIO|PCATCH);
785 if (error != 0) {
786 splx(s);
787 return (error);
788 }
789 didlockperiph = 1;
790 }
791 break;
792
793 case MTIOCSETEOTMODEL:
794 case MTSETBSIZ:
795 case MTSETDNSTY:
796 case MTCOMP:
797 /*
798 * We need to acquire the peripheral here rather
799 * than at open time because we are sharing writable
800 * access to data structures.
801 */
802 s = splsoftcam();
803 error = cam_periph_lock(periph, PRIBIO|PCATCH);
804 if (error != 0) {
805 splx(s);
806 return (error);
807 }
808 didlockperiph = 1;
809 break;
810
811 default:
812 return (EINVAL);
813 }
814 }
815
816 /*
817 * Find the device that the user is talking about
818 */
819 switch (cmd) {
820 case MTIOCGET:
821 {
822 struct mtget *g = (struct mtget *)arg;
823
824 /*
825 * If this isn't the control mode device, actually go out
826 * and ask the drive again what it's set to.
827 */
828 if (!SA_IS_CTRL(dev)) {
829 u_int8_t write_protect;
830 int comp_enabled, comp_supported;
831 error = sagetparams(periph, SA_PARAM_ALL,
832 &softc->media_blksize, &softc->media_density,
833 &softc->media_numblks, &softc->buffer_mode,
834 &write_protect, &softc->speed, &comp_supported,
835 &comp_enabled, &softc->comp_algorithm, NULL);
836 if (error)
837 break;
838 if (write_protect)
839 softc->flags |= SA_FLAG_TAPE_WP;
840 else
841 softc->flags &= ~SA_FLAG_TAPE_WP;
842 softc->flags &= ~(SA_FLAG_COMP_SUPP|
843 SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP);
844 if (comp_supported) {
845 if (softc->saved_comp_algorithm == 0)
846 softc->saved_comp_algorithm =
847 softc->comp_algorithm;
848 softc->flags |= SA_FLAG_COMP_SUPP;
849 if (comp_enabled)
850 softc->flags |= SA_FLAG_COMP_ENABLED;
851 } else
852 softc->flags |= SA_FLAG_COMP_UNSUPP;
853 }
854 bzero(g, sizeof(struct mtget));
855 g->mt_type = MT_ISAR;
856 if (softc->flags & SA_FLAG_COMP_UNSUPP) {
857 g->mt_comp = MT_COMP_UNSUPP;
858 g->mt_comp0 = MT_COMP_UNSUPP;
859 g->mt_comp1 = MT_COMP_UNSUPP;
860 g->mt_comp2 = MT_COMP_UNSUPP;
861 g->mt_comp3 = MT_COMP_UNSUPP;
862 } else {
863 if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) {
864 g->mt_comp = MT_COMP_DISABLED;
865 } else {
866 g->mt_comp = softc->comp_algorithm;
867 }
868 g->mt_comp0 = softc->comp_algorithm;
869 g->mt_comp1 = softc->comp_algorithm;
870 g->mt_comp2 = softc->comp_algorithm;
871 g->mt_comp3 = softc->comp_algorithm;
872 }
873 g->mt_density = softc->media_density;
874 g->mt_density0 = softc->media_density;
875 g->mt_density1 = softc->media_density;
876 g->mt_density2 = softc->media_density;
877 g->mt_density3 = softc->media_density;
878 g->mt_blksiz = softc->media_blksize;
879 g->mt_blksiz0 = softc->media_blksize;
880 g->mt_blksiz1 = softc->media_blksize;
881 g->mt_blksiz2 = softc->media_blksize;
882 g->mt_blksiz3 = softc->media_blksize;
883 g->mt_fileno = softc->fileno;
884 g->mt_blkno = softc->blkno;
885 g->mt_dsreg = (short) softc->dsreg;
886 error = 0;
887 break;
888 }
889 case MTIOCERRSTAT:
890 {
891 struct scsi_tape_errors *sep =
892 &((union mterrstat *)arg)->scsi_errstat;
893
894 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
895 ("saioctl: MTIOCERRSTAT\n"));
896
897 bzero(sep, sizeof(*sep));
898 sep->io_resid = softc->last_io_resid;
899 bcopy((caddr_t) &softc->last_io_sense, sep->io_sense,
900 sizeof (sep->io_sense));
901 bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb,
902 sizeof (sep->io_cdb));
903 sep->ctl_resid = softc->last_ctl_resid;
904 bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense,
905 sizeof (sep->ctl_sense));
906 bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb,
907 sizeof (sep->ctl_cdb));
908
909 if (SA_IS_CTRL(dev) == 0 || didlockperiph)
910 bzero((caddr_t) &softc->errinfo,
911 sizeof (softc->errinfo));
912 error = 0;
913 break;
914 }
915 case MTIOCTOP:
916 {
917 struct mtop *mt;
918 int count;
919
920 mt = (struct mtop *)arg;
921
922 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
923 ("saioctl: op=0x%x count=0x%x\n",
924 mt->mt_op, mt->mt_count));
925
926 count = mt->mt_count;
927 switch (mt->mt_op) {
928 case MTWEOF: /* write an end-of-file marker */
929 /* XXXX: NEED TO CLEAR SA_TAPE_WRITTEN */
930 error = sawritefilemarks(periph, count, FALSE);
931 break;
932 case MTWSS: /* write a setmark */
933 error = sawritefilemarks(periph, count, TRUE);
934 break;
935 case MTBSR: /* backward space record */
936 case MTFSR: /* forward space record */
937 case MTBSF: /* backward space file */
938 case MTFSF: /* forward space file */
939 case MTBSS: /* backward space setmark */
940 case MTFSS: /* forward space setmark */
941 case MTEOD: /* space to end of recorded medium */
942 {
943 int nmarks;
944
945 spaceop = SS_FILEMARKS;
946 nmarks = softc->filemarks;
947 error = sacheckeod(periph);
948 if (error) {
949 xpt_print_path(periph->path);
950 printf("EOD check prior to spacing failed\n");
951 softc->flags |= SA_FLAG_EIO_PENDING;
952 break;
953 }
954 nmarks -= softc->filemarks;
955 switch(mt->mt_op) {
956 case MTBSR:
957 count = -count;
958 /* FALLTHROUGH */
959 case MTFSR:
960 spaceop = SS_BLOCKS;
961 break;
962 case MTBSF:
963 count = -count;
964 /* FALLTHROUGH */
965 case MTFSF:
966 break;
967 case MTBSS:
968 count = -count;
969 /* FALLTHROUGH */
970 case MTFSS:
971 spaceop = SS_SETMARKS;
972 break;
973 case MTEOD:
974 spaceop = SS_EOD;
975 count = 0;
976 nmarks = 0;
977 break;
978 default:
979 error = EINVAL;
980 break;
981 }
982 if (error)
983 break;
984
985 nmarks = softc->filemarks;
986 /*
987 * XXX: Why are we checking again?
988 */
989 error = sacheckeod(periph);
990 if (error)
991 break;
992 nmarks -= softc->filemarks;
993 error = saspace(periph, count - nmarks, spaceop);
994 /*
995 * At this point, clear that we've written the tape
996 * and that we've written any filemarks. We really
997 * don't know what the applications wishes to do next-
998 * the sacheckeod's will make sure we terminated the
999 * tape correctly if we'd been writing, but the next
1000 * action the user application takes will set again
1001 * whether we need to write filemarks.
1002 */
1003 softc->flags &=
1004 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1005 softc->filemarks = 0;
1006 break;
1007 }
1008 case MTREW: /* rewind */
1009 (void) sacheckeod(periph);
1010 error = sarewind(periph);
1011 /* see above */
1012 softc->flags &=
1013 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1014 softc->filemarks = 0;
1015 break;
1016 case MTERASE: /* erase */
1017 error = saerase(periph, count);
1018 softc->flags &=
1019 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1020 break;
1021 case MTRETENS: /* re-tension tape */
1022 error = saretension(periph);
1023 softc->flags &=
1024 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1025 break;
1026 case MTOFFL: /* rewind and put the drive offline */
1027
1028 (void) sacheckeod(periph);
1029 /* see above */
1030 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
1031 softc->filemarks = 0;
1032
1033 error = sarewind(periph);
1034 /* clear the frozen flag anyway */
1035 softc->flags &= ~SA_FLAG_TAPE_FROZEN;
1036
1037 /*
1038 * Be sure to allow media removal before ejecting.
1039 */
1040
1041 saprevent(periph, PR_ALLOW);
1042 if (error == 0) {
1043 error = saloadunload(periph, FALSE);
1044 if (error == 0) {
1045 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1046 }
1047 }
1048 break;
1049
1050 case MTNOP: /* no operation, sets status only */
1051 case MTCACHE: /* enable controller cache */
1052 case MTNOCACHE: /* disable controller cache */
1053 error = 0;
1054 break;
1055
1056 case MTSETBSIZ: /* Set block size for device */
1057
1058 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count,
1059 0, 0, 0);
1060 if (error == 0) {
1061 softc->last_media_blksize =
1062 softc->media_blksize;
1063 softc->media_blksize = count;
1064 if (count) {
1065 softc->flags |= SA_FLAG_FIXED;
1066 if (powerof2(count)) {
1067 softc->blk_shift =
1068 ffs(count) - 1;
1069 softc->blk_mask = count - 1;
1070 } else {
1071 softc->blk_mask = ~0;
1072 softc->blk_shift = 0;
1073 }
1074 /*
1075 * Make the user's desire 'persistent'.
1076 */
1077 softc->quirks &= ~SA_QUIRK_VARIABLE;
1078 softc->quirks |= SA_QUIRK_FIXED;
1079 } else {
1080 softc->flags &= ~SA_FLAG_FIXED;
1081 if (softc->max_blk == 0) {
1082 softc->max_blk = ~0;
1083 }
1084 softc->blk_shift = 0;
1085 if (softc->blk_gran != 0) {
1086 softc->blk_mask =
1087 softc->blk_gran - 1;
1088 } else {
1089 softc->blk_mask = 0;
1090 }
1091 /*
1092 * Make the user's desire 'persistent'.
1093 */
1094 softc->quirks |= SA_QUIRK_VARIABLE;
1095 softc->quirks &= ~SA_QUIRK_FIXED;
1096 }
1097 }
1098 break;
1099 case MTSETDNSTY: /* Set density for device and mode */
1100 if (count > UCHAR_MAX) {
1101 error = EINVAL;
1102 break;
1103 } else {
1104 error = sasetparams(periph, SA_PARAM_DENSITY,
1105 0, count, 0, 0);
1106 }
1107 break;
1108 case MTCOMP: /* enable compression */
1109 /*
1110 * Some devices don't support compression, and
1111 * don't like it if you ask them for the
1112 * compression page.
1113 */
1114 if ((softc->quirks & SA_QUIRK_NOCOMP) ||
1115 (softc->flags & SA_FLAG_COMP_UNSUPP)) {
1116 error = ENODEV;
1117 break;
1118 }
1119 error = sasetparams(periph, SA_PARAM_COMPRESSION,
1120 0, 0, count, SF_NO_PRINT);
1121 break;
1122 default:
1123 error = EINVAL;
1124 }
1125 break;
1126 }
1127 case MTIOCIEOT:
1128 case MTIOCEEOT:
1129 error = 0;
1130 break;
1131 case MTIOCRDSPOS:
1132 error = sardpos(periph, 0, (u_int32_t *) arg);
1133 break;
1134 case MTIOCRDHPOS:
1135 error = sardpos(periph, 1, (u_int32_t *) arg);
1136 break;
1137 case MTIOCSLOCATE:
1138 error = sasetpos(periph, 0, (u_int32_t *) arg);
1139 break;
1140 case MTIOCHLOCATE:
1141 error = sasetpos(periph, 1, (u_int32_t *) arg);
1142 break;
1143 case MTIOCGETEOTMODEL:
1144 error = 0;
1145 if (softc->quirks & SA_QUIRK_1FM)
1146 mode = 1;
1147 else
1148 mode = 2;
1149 *((u_int32_t *) arg) = mode;
1150 break;
1151 case MTIOCSETEOTMODEL:
1152 error = 0;
1153 switch (*((u_int32_t *) arg)) {
1154 case 1:
1155 softc->quirks &= ~SA_QUIRK_2FM;
1156 softc->quirks |= SA_QUIRK_1FM;
1157 break;
1158 case 2:
1159 softc->quirks &= ~SA_QUIRK_1FM;
1160 softc->quirks |= SA_QUIRK_2FM;
1161 break;
1162 default:
1163 error = EINVAL;
1164 break;
1165 }
1166 break;
1167 default:
1168 error = cam_periph_ioctl(periph, cmd, arg, saerror);
1169 break;
1170 }
1171 if (didlockperiph) {
1172 cam_periph_unlock(periph);
1173 }
1174 return (error);
1175}
1176
1177static void
1178sainit(void)
1179{
1180 cam_status status;
1181 struct cam_path *path;
1182
1183 /*
1184 * Create our extend array for storing the devices we attach to.
1185 */
1186 saperiphs = cam_extend_new();
1187 if (saperiphs == NULL) {
1188 printf("sa: Failed to alloc extend array!\n");
1189 return;
1190 }
1191
1192 /*
1193 * Install a global async callback.
1194 */
1195 status = xpt_create_path(&path, NULL, CAM_XPT_PATH_ID,
1196 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
1197
1198 if (status == CAM_REQ_CMP) {
1199 /* Register the async callbacks of interrest */
1200 struct ccb_setasync csa; /*
1201 * This is an immediate CCB,
1202 * so using the stack is OK
1203 */
1204 xpt_setup_ccb(&csa.ccb_h, path, 5);
1205 csa.ccb_h.func_code = XPT_SASYNC_CB;
1206 csa.event_enable = AC_FOUND_DEVICE;
1207 csa.callback = saasync;
1208 csa.callback_arg = NULL;
1209 xpt_action((union ccb *)&csa);
1210 status = csa.ccb_h.status;
1211 xpt_free_path(path);
1212 }
1213
1214 if (status != CAM_REQ_CMP) {
1215 printf("sa: Failed to attach master async callback "
1216 "due to status 0x%x!\n", status);
1217 }
1218}
1219
1220static void
1221saoninvalidate(struct cam_periph *periph)
1222{
1223 struct sa_softc *softc;
|
1224 struct buf *q_bp;
| 1224 struct bio *q_bp;
|
1225 struct ccb_setasync csa;
1226 int s;
1227
1228 softc = (struct sa_softc *)periph->softc;
1229
1230 /*
1231 * De-register any async callbacks.
1232 */
1233 xpt_setup_ccb(&csa.ccb_h, periph->path,
1234 /* priority */ 5);
1235 csa.ccb_h.func_code = XPT_SASYNC_CB;
1236 csa.event_enable = 0;
1237 csa.callback = saasync;
1238 csa.callback_arg = periph;
1239 xpt_action((union ccb *)&csa);
1240
1241 softc->flags |= SA_FLAG_INVALID;
1242
1243 /*
1244 * Although the oninvalidate() routines are always called at
1245 * splsoftcam, we need to be at splbio() here to keep the buffer
1246 * queue from being modified while we traverse it.
1247 */
1248 s = splbio();
1249
1250 /*
1251 * Return all queued I/O with ENXIO.
1252 * XXX Handle any transactions queued to the card
1253 * with XPT_ABORT_CCB.
1254 */
| 1225 struct ccb_setasync csa;
1226 int s;
1227
1228 softc = (struct sa_softc *)periph->softc;
1229
1230 /*
1231 * De-register any async callbacks.
1232 */
1233 xpt_setup_ccb(&csa.ccb_h, periph->path,
1234 /* priority */ 5);
1235 csa.ccb_h.func_code = XPT_SASYNC_CB;
1236 csa.event_enable = 0;
1237 csa.callback = saasync;
1238 csa.callback_arg = periph;
1239 xpt_action((union ccb *)&csa);
1240
1241 softc->flags |= SA_FLAG_INVALID;
1242
1243 /*
1244 * Although the oninvalidate() routines are always called at
1245 * splsoftcam, we need to be at splbio() here to keep the buffer
1246 * queue from being modified while we traverse it.
1247 */
1248 s = splbio();
1249
1250 /*
1251 * Return all queued I/O with ENXIO.
1252 * XXX Handle any transactions queued to the card
1253 * with XPT_ABORT_CCB.
1254 */
|
1255 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
1256 bufq_remove(&softc->buf_queue, q_bp);
1257 q_bp->b_resid = q_bp->b_bcount;
1258 q_bp->b_error = ENXIO;
1259 q_bp->b_ioflags |= BIO_ERROR;
| 1255 while ((q_bp = bioq_first(&softc->bio_queue)) != NULL){
1256 bioq_remove(&softc->bio_queue, q_bp);
1257 q_bp->bio_resid = q_bp->bio_bcount;
1258 q_bp->bio_error = ENXIO;
1259 q_bp->bio_flags |= BIO_ERROR;
|
1260 biodone(q_bp);
1261 }
1262 softc->queue_count = 0;
1263 splx(s);
1264
1265 xpt_print_path(periph->path);
1266 printf("lost device\n");
1267
1268}
1269
1270static void
1271sacleanup(struct cam_periph *periph)
1272{
1273 struct sa_softc *softc;
1274 int i;
1275
1276 softc = (struct sa_softc *)periph->softc;
1277
1278 devstat_remove_entry(&softc->device_stats);
1279
1280 destroy_dev(softc->devs.ctl_dev);
1281 destroy_dev(softc->devs.r_dev);
1282 destroy_dev(softc->devs.nr_dev);
1283 destroy_dev(softc->devs.er_dev);
1284
1285 for (i = 0; i < SA_NUM_MODES; i++) {
1286 destroy_dev(softc->devs.mode_devs[i].r_dev);
1287 destroy_dev(softc->devs.mode_devs[i].nr_dev);
1288 destroy_dev(softc->devs.mode_devs[i].er_dev);
1289 }
1290
1291 cam_extend_release(saperiphs, periph->unit_number);
1292 xpt_print_path(periph->path);
1293 printf("removing device entry\n");
1294 free(softc, M_DEVBUF);
1295}
1296
1297static void
1298saasync(void *callback_arg, u_int32_t code,
1299 struct cam_path *path, void *arg)
1300{
1301 struct cam_periph *periph;
1302
1303 periph = (struct cam_periph *)callback_arg;
1304 switch (code) {
1305 case AC_FOUND_DEVICE:
1306 {
1307 struct ccb_getdev *cgd;
1308 cam_status status;
1309
1310 cgd = (struct ccb_getdev *)arg;
1311
1312 if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL)
1313 break;
1314
1315 /*
1316 * Allocate a peripheral instance for
1317 * this device and start the probe
1318 * process.
1319 */
1320 status = cam_periph_alloc(saregister, saoninvalidate,
1321 sacleanup, sastart,
1322 "sa", CAM_PERIPH_BIO, cgd->ccb_h.path,
1323 saasync, AC_FOUND_DEVICE, cgd);
1324
1325 if (status != CAM_REQ_CMP
1326 && status != CAM_REQ_INPROG)
1327 printf("saasync: Unable to probe new device "
1328 "due to status 0x%x\n", status);
1329 break;
1330 }
1331 default:
1332 cam_periph_async(periph, code, path, arg);
1333 break;
1334 }
1335}
1336
1337static cam_status
1338saregister(struct cam_periph *periph, void *arg)
1339{
1340 struct sa_softc *softc;
1341 struct ccb_setasync csa;
1342 struct ccb_getdev *cgd;
1343 caddr_t match;
1344 int i;
1345
1346 cgd = (struct ccb_getdev *)arg;
1347 if (periph == NULL) {
1348 printf("saregister: periph was NULL!!\n");
1349 return (CAM_REQ_CMP_ERR);
1350 }
1351
1352 if (cgd == NULL) {
1353 printf("saregister: no getdev CCB, can't register device\n");
1354 return (CAM_REQ_CMP_ERR);
1355 }
1356
1357 softc = (struct sa_softc *)malloc(sizeof (*softc), M_DEVBUF, M_NOWAIT);
1358 if (softc == NULL) {
1359 printf("saregister: Unable to probe new device. "
1360 "Unable to allocate softc\n");
1361 return (CAM_REQ_CMP_ERR);
1362 }
1363
1364 bzero(softc, sizeof(*softc));
1365 softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data);
1366 softc->state = SA_STATE_NORMAL;
1367 softc->fileno = (daddr_t) -1;
1368 softc->blkno = (daddr_t) -1;
1369
| 1260 biodone(q_bp);
1261 }
1262 softc->queue_count = 0;
1263 splx(s);
1264
1265 xpt_print_path(periph->path);
1266 printf("lost device\n");
1267
1268}
1269
1270static void
1271sacleanup(struct cam_periph *periph)
1272{
1273 struct sa_softc *softc;
1274 int i;
1275
1276 softc = (struct sa_softc *)periph->softc;
1277
1278 devstat_remove_entry(&softc->device_stats);
1279
1280 destroy_dev(softc->devs.ctl_dev);
1281 destroy_dev(softc->devs.r_dev);
1282 destroy_dev(softc->devs.nr_dev);
1283 destroy_dev(softc->devs.er_dev);
1284
1285 for (i = 0; i < SA_NUM_MODES; i++) {
1286 destroy_dev(softc->devs.mode_devs[i].r_dev);
1287 destroy_dev(softc->devs.mode_devs[i].nr_dev);
1288 destroy_dev(softc->devs.mode_devs[i].er_dev);
1289 }
1290
1291 cam_extend_release(saperiphs, periph->unit_number);
1292 xpt_print_path(periph->path);
1293 printf("removing device entry\n");
1294 free(softc, M_DEVBUF);
1295}
1296
1297static void
1298saasync(void *callback_arg, u_int32_t code,
1299 struct cam_path *path, void *arg)
1300{
1301 struct cam_periph *periph;
1302
1303 periph = (struct cam_periph *)callback_arg;
1304 switch (code) {
1305 case AC_FOUND_DEVICE:
1306 {
1307 struct ccb_getdev *cgd;
1308 cam_status status;
1309
1310 cgd = (struct ccb_getdev *)arg;
1311
1312 if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL)
1313 break;
1314
1315 /*
1316 * Allocate a peripheral instance for
1317 * this device and start the probe
1318 * process.
1319 */
1320 status = cam_periph_alloc(saregister, saoninvalidate,
1321 sacleanup, sastart,
1322 "sa", CAM_PERIPH_BIO, cgd->ccb_h.path,
1323 saasync, AC_FOUND_DEVICE, cgd);
1324
1325 if (status != CAM_REQ_CMP
1326 && status != CAM_REQ_INPROG)
1327 printf("saasync: Unable to probe new device "
1328 "due to status 0x%x\n", status);
1329 break;
1330 }
1331 default:
1332 cam_periph_async(periph, code, path, arg);
1333 break;
1334 }
1335}
1336
1337static cam_status
1338saregister(struct cam_periph *periph, void *arg)
1339{
1340 struct sa_softc *softc;
1341 struct ccb_setasync csa;
1342 struct ccb_getdev *cgd;
1343 caddr_t match;
1344 int i;
1345
1346 cgd = (struct ccb_getdev *)arg;
1347 if (periph == NULL) {
1348 printf("saregister: periph was NULL!!\n");
1349 return (CAM_REQ_CMP_ERR);
1350 }
1351
1352 if (cgd == NULL) {
1353 printf("saregister: no getdev CCB, can't register device\n");
1354 return (CAM_REQ_CMP_ERR);
1355 }
1356
1357 softc = (struct sa_softc *)malloc(sizeof (*softc), M_DEVBUF, M_NOWAIT);
1358 if (softc == NULL) {
1359 printf("saregister: Unable to probe new device. "
1360 "Unable to allocate softc\n");
1361 return (CAM_REQ_CMP_ERR);
1362 }
1363
1364 bzero(softc, sizeof(*softc));
1365 softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data);
1366 softc->state = SA_STATE_NORMAL;
1367 softc->fileno = (daddr_t) -1;
1368 softc->blkno = (daddr_t) -1;
1369
|
1370 bufq_init(&softc->buf_queue);
| 1370 bioq_init(&softc->bio_queue);
|
1371 periph->softc = softc;
1372 cam_extend_set(saperiphs, periph->unit_number, periph);
1373
1374 /*
1375 * See if this device has any quirks.
1376 */
1377 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1378 (caddr_t)sa_quirk_table,
1379 sizeof(sa_quirk_table)/sizeof(*sa_quirk_table),
1380 sizeof(*sa_quirk_table), scsi_inquiry_match);
1381
1382 if (match != NULL) {
1383 softc->quirks = ((struct sa_quirk_entry *)match)->quirks;
1384 softc->last_media_blksize =
1385 ((struct sa_quirk_entry *)match)->prefblk;
1386#ifdef CAMDEBUG
1387 xpt_print_path(periph->path);
1388 printf("found quirk entry %d\n", (int)
1389 (((struct sa_quirk_entry *) match) - sa_quirk_table));
1390#endif
1391 } else
1392 softc->quirks = SA_QUIRK_NONE;
1393
1394 /*
1395 * The SA driver supports a blocksize, but we don't know the
1396 * blocksize until we media is inserted. So, set a flag to
1397 * indicate that the blocksize is unavailable right now.
1398 */
1399 devstat_add_entry(&softc->device_stats, "sa", periph->unit_number, 0,
1400 DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) |
1401 DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_TAPE);
1402
1403 softc->devs.ctl_dev = make_dev(&sa_cdevsw, SAMINOR(SA_CTLDEV,
1404 periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
1405 0660, "r%s%d.ctl", periph->periph_name, periph->unit_number);
1406
1407 softc->devs.r_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
1408 periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
1409 0660, "r%s%d", periph->periph_name, periph->unit_number);
1410
1411 softc->devs.nr_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
1412 periph->unit_number, 0, SA_ATYPE_NR), UID_ROOT, GID_OPERATOR,
1413 0660, "nr%s%d", periph->periph_name, periph->unit_number);
1414
1415 softc->devs.er_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
1416 periph->unit_number, 0, SA_ATYPE_ER), UID_ROOT, GID_OPERATOR,
1417 0660, "er%s%d", periph->periph_name, periph->unit_number);
1418
1419 for (i = 0; i < SA_NUM_MODES; i++) {
1420
1421 softc->devs.mode_devs[i].r_dev = make_dev(&sa_cdevsw,
1422 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_R),
1423 UID_ROOT, GID_OPERATOR, 0660, "r%s%d.%d",
1424 periph->periph_name, periph->unit_number, i);
1425
1426 softc->devs.mode_devs[i].nr_dev = make_dev(&sa_cdevsw,
1427 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_NR),
1428 UID_ROOT, GID_OPERATOR, 0660, "nr%s%d.%d",
1429 periph->periph_name, periph->unit_number, i);
1430
1431
1432 softc->devs.mode_devs[i].er_dev = make_dev(&sa_cdevsw,
1433 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_ER),
1434 UID_ROOT, GID_OPERATOR, 0660, "er%s%d.%d",
1435 periph->periph_name, periph->unit_number, i);
1436 }
1437
1438 /*
1439 * Add an async callback so that we get
1440 * notified if this device goes away.
1441 */
1442 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5);
1443 csa.ccb_h.func_code = XPT_SASYNC_CB;
1444 csa.event_enable = AC_LOST_DEVICE;
1445 csa.callback = saasync;
1446 csa.callback_arg = periph;
1447 xpt_action((union ccb *)&csa);
1448
1449 xpt_announce_periph(periph, NULL);
1450
1451 return (CAM_REQ_CMP);
1452}
1453
1454static void
1455sastart(struct cam_periph *periph, union ccb *start_ccb)
1456{
1457 struct sa_softc *softc;
1458
1459 softc = (struct sa_softc *)periph->softc;
1460
1461 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastart"));
1462
1463 switch (softc->state) {
1464 case SA_STATE_NORMAL:
1465 {
1466 /* Pull a buffer from the queue and get going on it */
| 1371 periph->softc = softc;
1372 cam_extend_set(saperiphs, periph->unit_number, periph);
1373
1374 /*
1375 * See if this device has any quirks.
1376 */
1377 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1378 (caddr_t)sa_quirk_table,
1379 sizeof(sa_quirk_table)/sizeof(*sa_quirk_table),
1380 sizeof(*sa_quirk_table), scsi_inquiry_match);
1381
1382 if (match != NULL) {
1383 softc->quirks = ((struct sa_quirk_entry *)match)->quirks;
1384 softc->last_media_blksize =
1385 ((struct sa_quirk_entry *)match)->prefblk;
1386#ifdef CAMDEBUG
1387 xpt_print_path(periph->path);
1388 printf("found quirk entry %d\n", (int)
1389 (((struct sa_quirk_entry *) match) - sa_quirk_table));
1390#endif
1391 } else
1392 softc->quirks = SA_QUIRK_NONE;
1393
1394 /*
1395 * The SA driver supports a blocksize, but we don't know the
1396 * blocksize until we media is inserted. So, set a flag to
1397 * indicate that the blocksize is unavailable right now.
1398 */
1399 devstat_add_entry(&softc->device_stats, "sa", periph->unit_number, 0,
1400 DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) |
1401 DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_TAPE);
1402
1403 softc->devs.ctl_dev = make_dev(&sa_cdevsw, SAMINOR(SA_CTLDEV,
1404 periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
1405 0660, "r%s%d.ctl", periph->periph_name, periph->unit_number);
1406
1407 softc->devs.r_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
1408 periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
1409 0660, "r%s%d", periph->periph_name, periph->unit_number);
1410
1411 softc->devs.nr_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
1412 periph->unit_number, 0, SA_ATYPE_NR), UID_ROOT, GID_OPERATOR,
1413 0660, "nr%s%d", periph->periph_name, periph->unit_number);
1414
1415 softc->devs.er_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV,
1416 periph->unit_number, 0, SA_ATYPE_ER), UID_ROOT, GID_OPERATOR,
1417 0660, "er%s%d", periph->periph_name, periph->unit_number);
1418
1419 for (i = 0; i < SA_NUM_MODES; i++) {
1420
1421 softc->devs.mode_devs[i].r_dev = make_dev(&sa_cdevsw,
1422 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_R),
1423 UID_ROOT, GID_OPERATOR, 0660, "r%s%d.%d",
1424 periph->periph_name, periph->unit_number, i);
1425
1426 softc->devs.mode_devs[i].nr_dev = make_dev(&sa_cdevsw,
1427 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_NR),
1428 UID_ROOT, GID_OPERATOR, 0660, "nr%s%d.%d",
1429 periph->periph_name, periph->unit_number, i);
1430
1431
1432 softc->devs.mode_devs[i].er_dev = make_dev(&sa_cdevsw,
1433 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_ER),
1434 UID_ROOT, GID_OPERATOR, 0660, "er%s%d.%d",
1435 periph->periph_name, periph->unit_number, i);
1436 }
1437
1438 /*
1439 * Add an async callback so that we get
1440 * notified if this device goes away.
1441 */
1442 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5);
1443 csa.ccb_h.func_code = XPT_SASYNC_CB;
1444 csa.event_enable = AC_LOST_DEVICE;
1445 csa.callback = saasync;
1446 csa.callback_arg = periph;
1447 xpt_action((union ccb *)&csa);
1448
1449 xpt_announce_periph(periph, NULL);
1450
1451 return (CAM_REQ_CMP);
1452}
1453
1454static void
1455sastart(struct cam_periph *periph, union ccb *start_ccb)
1456{
1457 struct sa_softc *softc;
1458
1459 softc = (struct sa_softc *)periph->softc;
1460
1461 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("sastart"));
1462
1463 switch (softc->state) {
1464 case SA_STATE_NORMAL:
1465 {
1466 /* Pull a buffer from the queue and get going on it */
|
1467 struct buf *bp;
| 1467 struct bio *bp;
|
1468 int s;
1469
1470 /*
1471 * See if there is a buf with work for us to do..
1472 */
1473 s = splbio();
| 1468 int s;
1469
1470 /*
1471 * See if there is a buf with work for us to do..
1472 */
1473 s = splbio();
|
1474 bp = bufq_first(&softc->buf_queue);
| 1474 bp = bioq_first(&softc->bio_queue);
|
1475 if (periph->immediate_priority <= periph->pinfo.priority) {
1476 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1477 ("queuing for immediate ccb\n"));
1478 start_ccb->ccb_h.ccb_type = SA_CCB_WAITING;
1479 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1480 periph_links.sle);
1481 periph->immediate_priority = CAM_PRIORITY_NONE;
1482 splx(s);
1483 wakeup(&periph->ccb_list);
1484 } else if (bp == NULL) {
1485 splx(s);
1486 xpt_release_ccb(start_ccb);
1487 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) {
| 1475 if (periph->immediate_priority <= periph->pinfo.priority) {
1476 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1477 ("queuing for immediate ccb\n"));
1478 start_ccb->ccb_h.ccb_type = SA_CCB_WAITING;
1479 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1480 periph_links.sle);
1481 periph->immediate_priority = CAM_PRIORITY_NONE;
1482 splx(s);
1483 wakeup(&periph->ccb_list);
1484 } else if (bp == NULL) {
1485 splx(s);
1486 xpt_release_ccb(start_ccb);
1487 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) {
|
1488 struct buf *done_bp;
| 1488 struct bio *done_bp;
|
1489 softc->queue_count--;
| 1489 softc->queue_count--;
|
1490 bufq_remove(&softc->buf_queue, bp);
1491 bp->b_resid = bp->b_bcount;
1492 bp->b_ioflags |= BIO_ERROR;
| 1490 bioq_remove(&softc->bio_queue, bp);
1491 bp->bio_resid = bp->bio_bcount;
1492 bp->bio_flags |= BIO_ERROR;
|
1493 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) {
| 1493 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) {
|
1494 if (bp->b_iocmd == BIO_WRITE)
1495 bp->b_error = ENOSPC;
| 1494 if (bp->bio_cmd == BIO_WRITE)
1495 bp->bio_error = ENOSPC;
|
1496 else
| 1496 else
|
1497 bp->b_error = EIO;
| 1497 bp->bio_error = EIO;
|
1498 }
1499 if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) {
| 1498 }
1499 if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) {
|
1500 bp->b_error = EIO;
| 1500 bp->bio_error = EIO;
|
1501 }
1502 if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) {
| 1501 }
1502 if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) {
|
1503 bp->b_error = EIO;
| 1503 bp->bio_error = EIO;
|
1504 }
1505 done_bp = bp;
| 1504 }
1505 done_bp = bp;
|
1506 bp = bufq_first(&softc->buf_queue);
| 1506 bp = bioq_first(&softc->bio_queue);
|
1507 /*
1508 * Only if we have no other buffers queued up
1509 * do we clear the pending error flag.
1510 */
1511 if (bp == NULL)
1512 softc->flags &= ~SA_FLAG_ERR_PENDING;
1513 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1514 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, "
1515 "%d more buffers queued up\n",
1516 (softc->flags & SA_FLAG_ERR_PENDING),
1517 (bp != NULL)? "not " : " ", softc->queue_count));
1518 splx(s);
1519 xpt_release_ccb(start_ccb);
1520 biodone(done_bp);
1521 } else {
1522 u_int32_t length;
1523
| 1507 /*
1508 * Only if we have no other buffers queued up
1509 * do we clear the pending error flag.
1510 */
1511 if (bp == NULL)
1512 softc->flags &= ~SA_FLAG_ERR_PENDING;
1513 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1514 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, "
1515 "%d more buffers queued up\n",
1516 (softc->flags & SA_FLAG_ERR_PENDING),
1517 (bp != NULL)? "not " : " ", softc->queue_count));
1518 splx(s);
1519 xpt_release_ccb(start_ccb);
1520 biodone(done_bp);
1521 } else {
1522 u_int32_t length;
1523
|
1524 bufq_remove(&softc->buf_queue, bp);
| 1524 bioq_remove(&softc->bio_queue, bp);
|
1525 softc->queue_count--;
1526
1527 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1528 if (softc->blk_shift != 0) {
1529 length =
| 1525 softc->queue_count--;
1526
1527 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1528 if (softc->blk_shift != 0) {
1529 length =
|
1530 bp->b_bcount >> softc->blk_shift;
| 1530 bp->bio_bcount >> softc->blk_shift;
|
1531 } else if (softc->media_blksize != 0) {
1532 length =
| 1531 } else if (softc->media_blksize != 0) {
1532 length =
|
1533 bp->b_bcount / softc->media_blksize;
| 1533 bp->bio_bcount / softc->media_blksize;
|
1534 } else {
| 1534 } else {
|
1535 bp->b_error = EIO;
| 1535 bp->bio_error = EIO;
|
1536 xpt_print_path(periph->path);
1537 printf("zero blocksize for "
1538 "FIXED length writes?\n");
1539 splx(s);
1540 biodone(bp);
1541 break;
1542 }
1543 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1544 ("Fixed Record Count is %d\n", length));
1545 } else {
| 1536 xpt_print_path(periph->path);
1537 printf("zero blocksize for "
1538 "FIXED length writes?\n");
1539 splx(s);
1540 biodone(bp);
1541 break;
1542 }
1543 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1544 ("Fixed Record Count is %d\n", length));
1545 } else {
|
1546 length = bp->b_bcount;
| 1546 length = bp->bio_bcount;
|
1547 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
1548 ("Variable Record Count is %d\n", length));
1549 }
1550 devstat_start_transaction(&softc->device_stats);
1551 /*
1552 * Some people have theorized that we should
1553 * suppress illegal length indication if we are
1554 * running in variable block mode so that we don't
1555 * have to request sense every time our requested
1556 * block size is larger than the written block.
1557 * The residual information from the ccb allows
1558 * us to identify this situation anyway. The only
1559 * problem with this is that we will not get
1560 * information about blocks that are larger than
1561 * our read buffer unless we set the block size
1562 * in the mode page to something other than 0.
1563 *
1564 * I believe that this is a non-issue. If user apps
1565 * don't adjust their read size to match our record
1566 * size, that's just life. Anyway, the typical usage
1567 * would be to issue, e.g., 64KB reads and occasionally
1568 * have to do deal with 512 byte or 1KB intermediate
1569 * records.
1570 */
| 1547 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
1548 ("Variable Record Count is %d\n", length));
1549 }
1550 devstat_start_transaction(&softc->device_stats);
1551 /*
1552 * Some people have theorized that we should
1553 * suppress illegal length indication if we are
1554 * running in variable block mode so that we don't
1555 * have to request sense every time our requested
1556 * block size is larger than the written block.
1557 * The residual information from the ccb allows
1558 * us to identify this situation anyway. The only
1559 * problem with this is that we will not get
1560 * information about blocks that are larger than
1561 * our read buffer unless we set the block size
1562 * in the mode page to something other than 0.
1563 *
1564 * I believe that this is a non-issue. If user apps
1565 * don't adjust their read size to match our record
1566 * size, that's just life. Anyway, the typical usage
1567 * would be to issue, e.g., 64KB reads and occasionally
1568 * have to do deal with 512 byte or 1KB intermediate
1569 * records.
1570 */
|
1571 softc->dsreg = (bp->b_iocmd == BIO_READ)?
| 1571 softc->dsreg = (bp->bio_cmd == BIO_READ)?
|
1572 MTIO_DSREG_RD : MTIO_DSREG_WR;
1573 scsi_sa_read_write(&start_ccb->csio, 0, sadone,
| 1572 MTIO_DSREG_RD : MTIO_DSREG_WR;
1573 scsi_sa_read_write(&start_ccb->csio, 0, sadone,
|
1574 MSG_SIMPLE_Q_TAG, (bp->b_iocmd == BIO_READ),
| 1574 MSG_SIMPLE_Q_TAG, (bp->bio_cmd == BIO_READ),
|
1575 FALSE, (softc->flags & SA_FLAG_FIXED) != 0,
| 1575 FALSE, (softc->flags & SA_FLAG_FIXED) != 0,
|
1576 length, bp->b_data, bp->b_bcount, SSD_FULL_SIZE,
| 1576 length, bp->bio_data, bp->bio_bcount, SSD_FULL_SIZE,
|
1577 120 * 60 * 1000);
1578 start_ccb->ccb_h.ccb_type = SA_CCB_BUFFER_IO;
1579 start_ccb->ccb_h.ccb_bp = bp;
| 1577 120 * 60 * 1000);
1578 start_ccb->ccb_h.ccb_type = SA_CCB_BUFFER_IO;
1579 start_ccb->ccb_h.ccb_bp = bp;
|
1580 bp = bufq_first(&softc->buf_queue);
| 1580 bp = bioq_first(&softc->bio_queue);
|
1581 splx(s);
1582 xpt_action(start_ccb);
1583 }
1584
1585 if (bp != NULL) {
1586 /* Have more work to do, so ensure we stay scheduled */
1587 xpt_schedule(periph, 1);
1588 }
1589 break;
1590 }
1591 case SA_STATE_ABNORMAL:
1592 default:
1593 panic("state 0x%x in sastart", softc->state);
1594 break;
1595 }
1596}
1597
1598
1599static void
1600sadone(struct cam_periph *periph, union ccb *done_ccb)
1601{
1602 struct sa_softc *softc;
1603 struct ccb_scsiio *csio;
1604
1605 softc = (struct sa_softc *)periph->softc;
1606 csio = &done_ccb->csio;
1607 switch (csio->ccb_h.ccb_type) {
1608 case SA_CCB_BUFFER_IO:
1609 {
| 1581 splx(s);
1582 xpt_action(start_ccb);
1583 }
1584
1585 if (bp != NULL) {
1586 /* Have more work to do, so ensure we stay scheduled */
1587 xpt_schedule(periph, 1);
1588 }
1589 break;
1590 }
1591 case SA_STATE_ABNORMAL:
1592 default:
1593 panic("state 0x%x in sastart", softc->state);
1594 break;
1595 }
1596}
1597
1598
1599static void
1600sadone(struct cam_periph *periph, union ccb *done_ccb)
1601{
1602 struct sa_softc *softc;
1603 struct ccb_scsiio *csio;
1604
1605 softc = (struct sa_softc *)periph->softc;
1606 csio = &done_ccb->csio;
1607 switch (csio->ccb_h.ccb_type) {
1608 case SA_CCB_BUFFER_IO:
1609 {
|
1610 struct buf *bp;
| 1610 struct bio *bp;
|
1611 int error;
1612
1613 softc->dsreg = MTIO_DSREG_REST;
| 1611 int error;
1612
1613 softc->dsreg = MTIO_DSREG_REST;
|
1614 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
| 1614 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
|
1615 error = 0;
1616 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1617 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) {
1618 /*
1619 * A retry was scheduled, so just return.
1620 */
1621 return;
1622 }
1623 }
1624
1625 if (error == EIO) {
1626 int s;
| 1615 error = 0;
1616 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1617 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) {
1618 /*
1619 * A retry was scheduled, so just return.
1620 */
1621 return;
1622 }
1623 }
1624
1625 if (error == EIO) {
1626 int s;
|
1627 struct buf *q_bp;
| 1627 struct bio *q_bp;
|
1628
1629 /*
1630 * Catastrophic error. Mark the tape as frozen
1631 * (we no longer know tape position).
1632 *
1633 * Return all queued I/O with EIO, and unfreeze
1634 * our queue so that future transactions that
1635 * attempt to fix this problem can get to the
1636 * device.
1637 *
1638 */
1639
1640 s = splbio();
1641 softc->flags |= SA_FLAG_TAPE_FROZEN;
| 1628
1629 /*
1630 * Catastrophic error. Mark the tape as frozen
1631 * (we no longer know tape position).
1632 *
1633 * Return all queued I/O with EIO, and unfreeze
1634 * our queue so that future transactions that
1635 * attempt to fix this problem can get to the
1636 * device.
1637 *
1638 */
1639
1640 s = splbio();
1641 softc->flags |= SA_FLAG_TAPE_FROZEN;
|
1642 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) {
1643 bufq_remove(&softc->buf_queue, q_bp);
1644 q_bp->b_resid = q_bp->b_bcount;
1645 q_bp->b_error = EIO;
1646 q_bp->b_ioflags |= BIO_ERROR;
| 1642 while ((q_bp = bioq_first(&softc->bio_queue)) != NULL) {
1643 bioq_remove(&softc->bio_queue, q_bp);
1644 q_bp->bio_resid = q_bp->bio_bcount;
1645 q_bp->bio_error = EIO;
1646 q_bp->bio_flags |= BIO_ERROR;
|
1647 biodone(q_bp);
1648 }
1649 splx(s);
1650 }
1651 if (error != 0) {
| 1647 biodone(q_bp);
1648 }
1649 splx(s);
1650 }
1651 if (error != 0) {
|
1652 bp->b_resid = bp->b_bcount;
1653 bp->b_error = error;
1654 bp->b_ioflags |= BIO_ERROR;
| 1652 bp->bio_resid = bp->bio_bcount;
1653 bp->bio_error = error;
1654 bp->bio_flags |= BIO_ERROR;
|
1655 /*
1656 * In the error case, position is updated in saerror.
1657 */
1658 } else {
| 1655 /*
1656 * In the error case, position is updated in saerror.
1657 */
1658 } else {
|
1659 bp->b_resid = csio->resid;
1660 bp->b_error = 0;
| 1659 bp->bio_resid = csio->resid;
1660 bp->bio_error = 0;
|
1661 if (csio->resid != 0) {
| 1661 if (csio->resid != 0) {
|
1662 bp->b_ioflags |= BIO_ERROR;
| 1662 bp->bio_flags |= BIO_ERROR;
|
1663 }
| 1663 }
|
1664 if (bp->b_iocmd == BIO_WRITE) {
| 1664 if (bp->bio_cmd == BIO_WRITE) {
|
1665 softc->flags |= SA_FLAG_TAPE_WRITTEN;
1666 softc->filemarks = 0;
1667 }
1668 if (softc->blkno != (daddr_t) -1) {
1669 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1670 u_int32_t l;
1671 if (softc->blk_shift != 0) {
| 1665 softc->flags |= SA_FLAG_TAPE_WRITTEN;
1666 softc->filemarks = 0;
1667 }
1668 if (softc->blkno != (daddr_t) -1) {
1669 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1670 u_int32_t l;
1671 if (softc->blk_shift != 0) {
|
1672 l = bp->b_bcount >>
| 1672 l = bp->bio_bcount >>
|
1673 softc->blk_shift;
1674 } else {
| 1673 softc->blk_shift;
1674 } else {
|
1675 l = bp->b_bcount /
| 1675 l = bp->bio_bcount /
|
1676 softc->media_blksize;
1677 }
1678 softc->blkno += (daddr_t) l;
1679 } else {
1680 softc->blkno++;
1681 }
1682 }
1683 }
1684 /*
1685 * If we had an error (immediate or pending),
1686 * release the device queue now.
1687 */
1688 if (error || (softc->flags & SA_FLAG_ERR_PENDING))
1689 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0);
1690#ifdef CAMDEBUG
| 1676 softc->media_blksize;
1677 }
1678 softc->blkno += (daddr_t) l;
1679 } else {
1680 softc->blkno++;
1681 }
1682 }
1683 }
1684 /*
1685 * If we had an error (immediate or pending),
1686 * release the device queue now.
1687 */
1688 if (error || (softc->flags & SA_FLAG_ERR_PENDING))
1689 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0);
1690#ifdef CAMDEBUG
|
1691 if (error || bp->b_resid) {
| 1691 if (error || bp->bio_resid) {
|
1692 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1693 ("error %d resid %ld count %ld\n", error,
| 1692 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1693 ("error %d resid %ld count %ld\n", error,
|
1694 bp->b_resid, bp->b_bcount));
| 1694 bp->bio_resid, bp->bio_bcount));
|
1695 }
1696#endif
| 1695 }
1696#endif
|
1697 devstat_end_transaction_buf(&softc->device_stats, bp);
| 1697 devstat_end_transaction_bio(&softc->device_stats, bp);
|
1698 biodone(bp);
1699 break;
1700 }
1701 case SA_CCB_WAITING:
1702 {
1703 /* Caller will release the CCB */
1704 wakeup(&done_ccb->ccb_h.cbfcnp);
1705 return;
1706 }
1707 }
1708 xpt_release_ccb(done_ccb);
1709}
1710
1711/*
1712 * Mount the tape (make sure it's ready for I/O).
1713 */
1714static int
1715samount(struct cam_periph *periph, int oflags, dev_t dev)
1716{
1717 struct sa_softc *softc;
1718 union ccb *ccb;
1719 int error;
1720
1721 /*
1722 * oflags can be checked for 'kind' of open (read-only check) - later
1723 * dev can be checked for a control-mode or compression open - later
1724 */
1725 UNUSED_PARAMETER(oflags);
1726 UNUSED_PARAMETER(dev);
1727
1728
1729 softc = (struct sa_softc *)periph->softc;
1730
1731 /*
1732 * This should determine if something has happend since the last
1733 * open/mount that would invalidate the mount. We do *not* want
1734 * to retry this command- we just want the status. But we only
1735 * do this if we're mounted already- if we're not mounted,
1736 * we don't care about the unit read state and can instead use
1737 * this opportunity to attempt to reserve the tape unit.
1738 */
1739
1740 if (softc->flags & SA_FLAG_TAPE_MOUNTED) {
1741 ccb = cam_periph_getccb(periph, 1);
1742 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1743 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
1744 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1745 &softc->device_stats);
1746 QFRLS(ccb);
1747 if (error == ENXIO) {
1748 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1749 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1750 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
1751 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1752 &softc->device_stats);
1753 QFRLS(ccb);
1754 } else if (error) {
1755 /*
1756 * We don't need to freeze the tape because we
1757 * will now attempt to rewind/load it.
1758 */
1759 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1760 if (CAM_DEBUGGED(ccb->ccb_h.path, CAM_DEBUG_INFO)) {
1761 xpt_print_path(ccb->ccb_h.path);
1762 printf("error %d on TUR in samount\n", error);
1763 }
1764 }
1765 } else {
1766 error = sareservereleaseunit(periph, TRUE);
1767 if (error) {
1768 return (error);
1769 }
1770 ccb = cam_periph_getccb(periph, 1);
1771 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1772 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
1773 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1774 &softc->device_stats);
1775 QFRLS(ccb);
1776 }
1777
1778 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
1779 struct scsi_read_block_limits_data *rblim = NULL;
1780 int comp_enabled, comp_supported;
1781 u_int8_t write_protect, guessing = 0;
1782
1783 /*
1784 * Clear out old state.
1785 */
1786 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN|
1787 SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED|
1788 SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP);
1789 softc->filemarks = 0;
1790
1791 /*
1792 * *Very* first off, make sure we're loaded to BOT.
1793 */
1794 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
1795 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT);
1796 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1797 &softc->device_stats);
1798 QFRLS(ccb);
1799
1800 /*
1801 * In case this doesn't work, do a REWIND instead
1802 */
1803 if (error) {
1804 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
1805 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
1806 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1807 &softc->device_stats);
1808 QFRLS(ccb);
1809 }
1810 if (error) {
1811 xpt_release_ccb(ccb);
1812 goto exit;
1813 }
1814
1815 /*
1816 * Do a dummy test read to force access to the
1817 * media so that the drive will really know what's
1818 * there. We actually don't really care what the
1819 * blocksize on tape is and don't expect to really
1820 * read a full record.
1821 */
1822 rblim = (struct scsi_read_block_limits_data *)
1823 malloc(8192, M_TEMP, M_WAITOK);
1824 if (rblim == NULL) {
1825 xpt_print_path(ccb->ccb_h.path);
1826 printf("no memory for test read\n");
1827 xpt_release_ccb(ccb);
1828 error = ENOMEM;
1829 goto exit;
1830 }
1831
1832 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
1833 scsi_sa_read_write(&ccb->csio, 0, sadone,
1834 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
1835 (void *) rblim, 8192, SSD_FULL_SIZE,
1836 120 * 60 * 1000);
1837 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1838 &softc->device_stats);
1839 QFRLS(ccb);
1840 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
1841 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
1842 error = cam_periph_runccb(ccb, saerror, 0,
1843 SF_NO_PRINT | SF_RETRY_SELTO | SF_RETRY_UA,
1844 &softc->device_stats);
1845 QFRLS(ccb);
1846 if (error) {
1847 xpt_print_path(ccb->ccb_h.path);
1848 printf("unable to rewind after test read\n");
1849 xpt_release_ccb(ccb);
1850 goto exit;
1851 }
1852 }
1853
1854 /*
1855 * Next off, determine block limits.
1856 */
1857 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
1858 rblim, SSD_FULL_SIZE, 5000);
1859
1860 error = cam_periph_runccb(ccb, saerror, 0,
1861 SF_NO_PRINT | SF_RETRY_UA | SF_RETRY_SELTO,
1862 &softc->device_stats);
1863 QFRLS(ccb);
1864 xpt_release_ccb(ccb);
1865
1866 if (error != 0) {
1867 /*
1868 * If it's less than SCSI-2, READ BLOCK LIMITS is not
1869 * a MANDATORY command. Anyway- it doesn't matter-
1870 * we can proceed anyway.
1871 */
1872 softc->blk_gran = 0;
1873 softc->max_blk = ~0;
1874 softc->min_blk = 0;
1875 } else {
1876 if (softc->scsi_rev >= SCSI_REV_3) {
1877 softc->blk_gran = RBL_GRAN(rblim);
1878 } else {
1879 softc->blk_gran = 0;
1880 }
1881 /*
1882 * We take max_blk == min_blk to mean a default to
1883 * fixed mode- but note that whatever we get out of
1884 * sagetparams below will actually determine whether
1885 * we are actually *in* fixed mode.
1886 */
1887 softc->max_blk = scsi_3btoul(rblim->maximum);
1888 softc->min_blk = scsi_2btoul(rblim->minimum);
1889
1890
1891 }
1892 /*
1893 * Next, perform a mode sense to determine
1894 * current density, blocksize, compression etc.
1895 */
1896 error = sagetparams(periph, SA_PARAM_ALL,
1897 &softc->media_blksize,
1898 &softc->media_density,
1899 &softc->media_numblks,
1900 &softc->buffer_mode, &write_protect,
1901 &softc->speed, &comp_supported,
1902 &comp_enabled, &softc->comp_algorithm,
1903 NULL);
1904
1905 if (error != 0) {
1906 /*
1907 * We could work a little harder here. We could
1908 * adjust our attempts to get information. It
1909 * might be an ancient tape drive. If someone
1910 * nudges us, we'll do that.
1911 */
1912 goto exit;
1913 }
1914
1915 /*
1916 * If no quirk has determined that this is a device that is
1917 * preferred to be in fixed or variable mode, now is the time
1918 * to find out.
1919 */
1920 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) {
1921 guessing = 1;
1922 /*
1923 * This could be expensive to find out. Luckily we
1924 * only need to do this once. If we start out in
1925 * 'default' mode, try and set ourselves to one
1926 * of the densities that would determine a wad
1927 * of other stuff. Go from highest to lowest.
1928 */
1929 if (softc->media_density == SCSI_DEFAULT_DENSITY) {
1930 int i;
1931 static u_int8_t ctry[] = {
1932 SCSI_DENSITY_HALFINCH_PE,
1933 SCSI_DENSITY_HALFINCH_6250C,
1934 SCSI_DENSITY_HALFINCH_6250,
1935 SCSI_DENSITY_HALFINCH_1600,
1936 SCSI_DENSITY_HALFINCH_800,
1937 SCSI_DENSITY_QIC_4GB,
1938 SCSI_DENSITY_QIC_2GB,
1939 SCSI_DENSITY_QIC_525_320,
1940 SCSI_DENSITY_QIC_150,
1941 SCSI_DENSITY_QIC_120,
1942 SCSI_DENSITY_QIC_24,
1943 SCSI_DENSITY_QIC_11_9TRK,
1944 SCSI_DENSITY_QIC_11_4TRK,
1945 SCSI_DENSITY_QIC_1320,
1946 SCSI_DENSITY_QIC_3080,
1947 0
1948 };
1949 for (i = 0; ctry[i]; i++) {
1950 error = sasetparams(periph,
1951 SA_PARAM_DENSITY, 0, ctry[i],
1952 0, SF_NO_PRINT);
1953 if (error == 0) {
1954 softc->media_density = ctry[i];
1955 break;
1956 }
1957 }
1958 }
1959 switch (softc->media_density) {
1960 case SCSI_DENSITY_QIC_11_4TRK:
1961 case SCSI_DENSITY_QIC_11_9TRK:
1962 case SCSI_DENSITY_QIC_24:
1963 case SCSI_DENSITY_QIC_120:
1964 case SCSI_DENSITY_QIC_150:
1965 case SCSI_DENSITY_QIC_1320:
1966 case SCSI_DENSITY_QIC_3080:
1967 softc->quirks &= ~SA_QUIRK_2FM;
1968 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
1969 softc->last_media_blksize = 512;
1970 break;
1971 case SCSI_DENSITY_QIC_4GB:
1972 case SCSI_DENSITY_QIC_2GB:
1973 case SCSI_DENSITY_QIC_525_320:
1974 softc->quirks &= ~SA_QUIRK_2FM;
1975 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
1976 softc->last_media_blksize = 1024;
1977 break;
1978 default:
1979 softc->last_media_blksize =
1980 softc->media_blksize;
1981 softc->quirks |= SA_QUIRK_VARIABLE;
1982 break;
1983 }
1984 }
1985
1986 /*
1987 * If no quirk has determined that this is a device that needs
1988 * to have 2 Filemarks at EOD, now is the time to find out.
1989 */
1990
1991 if ((softc->quirks & SA_QUIRK_2FM) == 0) {
1992 switch (softc->media_density) {
1993 case SCSI_DENSITY_HALFINCH_800:
1994 case SCSI_DENSITY_HALFINCH_1600:
1995 case SCSI_DENSITY_HALFINCH_6250:
1996 case SCSI_DENSITY_HALFINCH_6250C:
1997 case SCSI_DENSITY_HALFINCH_PE:
1998 softc->quirks &= ~SA_QUIRK_1FM;
1999 softc->quirks |= SA_QUIRK_2FM;
2000 break;
2001 default:
2002 break;
2003 }
2004 }
2005
2006 /*
2007 * Now validate that some info we got makes sense.
2008 */
2009 if ((softc->max_blk < softc->media_blksize) ||
2010 (softc->min_blk > softc->media_blksize &&
2011 softc->media_blksize)) {
2012 xpt_print_path(ccb->ccb_h.path);
2013 printf("BLOCK LIMITS (%d..%d) could not match current "
2014 "block settings (%d)- adjusting\n", softc->min_blk,
2015 softc->max_blk, softc->media_blksize);
2016 softc->max_blk = softc->min_blk =
2017 softc->media_blksize;
2018 }
2019
2020 /*
2021 * Now put ourselves into the right frame of mind based
2022 * upon quirks...
2023 */
2024tryagain:
2025 /*
2026 * If we want to be in FIXED mode and our current blocksize
2027 * is not equal to our last blocksize (if nonzero), try and
2028 * set ourselves to this last blocksize (as the 'preferred'
2029 * block size). The initial quirkmatch at registry sets the
2030 * initial 'last' blocksize. If, for whatever reason, this
2031 * 'last' blocksize is zero, set the blocksize to 512,
2032 * or min_blk if that's larger.
2033 */
2034 if ((softc->quirks & SA_QUIRK_FIXED) &&
2035 (softc->media_blksize != softc->last_media_blksize)) {
2036 softc->media_blksize = softc->last_media_blksize;
2037 if (softc->media_blksize == 0) {
2038 softc->media_blksize = 512;
2039 if (softc->media_blksize < softc->min_blk) {
2040 softc->media_blksize = softc->min_blk;
2041 }
2042 }
2043 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2044 softc->media_blksize, 0, 0, SF_NO_PRINT);
2045 if (error) {
2046 xpt_print_path(ccb->ccb_h.path);
2047 printf("unable to set fixed blocksize to %d\n",
2048 softc->media_blksize);
2049 goto exit;
2050 }
2051 }
2052
2053 if ((softc->quirks & SA_QUIRK_VARIABLE) &&
2054 (softc->media_blksize != 0)) {
2055 softc->last_media_blksize = softc->media_blksize;
2056 softc->media_blksize = 0;
2057 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2058 0, 0, 0, SF_NO_PRINT);
2059 if (error) {
2060 /*
2061 * If this fails and we were guessing, just
2062 * assume that we got it wrong and go try
2063 * fixed block mode. Don't even check against
2064 * density code at this point.
2065 */
2066 if (guessing) {
2067 softc->quirks &= ~SA_QUIRK_VARIABLE;
2068 softc->quirks |= SA_QUIRK_FIXED;
2069 if (softc->last_media_blksize == 0)
2070 softc->last_media_blksize = 512;
2071 goto tryagain;
2072 }
2073 xpt_print_path(ccb->ccb_h.path);
2074 printf("unable to set variable blocksize\n");
2075 goto exit;
2076 }
2077 }
2078
2079 /*
2080 * Now that we have the current block size,
2081 * set up some parameters for sastart's usage.
2082 */
2083 if (softc->media_blksize) {
2084 softc->flags |= SA_FLAG_FIXED;
2085 if (powerof2(softc->media_blksize)) {
2086 softc->blk_shift =
2087 ffs(softc->media_blksize) - 1;
2088 softc->blk_mask = softc->media_blksize - 1;
2089 } else {
2090 softc->blk_mask = ~0;
2091 softc->blk_shift = 0;
2092 }
2093 } else {
2094 /*
2095 * The SCSI-3 spec allows 0 to mean "unspecified".
2096 * The SCSI-1 spec allows 0 to mean 'infinite'.
2097 *
2098 * Either works here.
2099 */
2100 if (softc->max_blk == 0) {
2101 softc->max_blk = ~0;
2102 }
2103 softc->blk_shift = 0;
2104 if (softc->blk_gran != 0) {
2105 softc->blk_mask = softc->blk_gran - 1;
2106 } else {
2107 softc->blk_mask = 0;
2108 }
2109 }
2110
2111 if (write_protect)
2112 softc->flags |= SA_FLAG_TAPE_WP;
2113
2114 if (comp_supported) {
2115 if (softc->saved_comp_algorithm == 0)
2116 softc->saved_comp_algorithm =
2117 softc->comp_algorithm;
2118 softc->flags |= SA_FLAG_COMP_SUPP;
2119 if (comp_enabled)
2120 softc->flags |= SA_FLAG_COMP_ENABLED;
2121 } else
2122 softc->flags |= SA_FLAG_COMP_UNSUPP;
2123
2124 if (softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) {
2125 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0,
2126 0, 0, SF_NO_PRINT);
2127 if (error == 0)
2128 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF;
2129 }
2130
2131
2132 if (error == 0) {
2133 softc->flags |= SA_FLAG_TAPE_MOUNTED;
2134 }
2135exit:
2136 if (rblim != NULL)
2137 free(rblim, M_TEMP);
2138
2139 if (error != 0) {
2140 softc->dsreg = MTIO_DSREG_NIL;
2141 } else {
2142 softc->fileno = softc->blkno = 0;
2143 softc->dsreg = MTIO_DSREG_REST;
2144 }
2145#ifdef SA_1FM_AT_EOD
2146 if ((softc->quirks & SA_QUIRK_2FM) == 0)
2147 softc->quirks |= SA_QUIRK_1FM;
2148#else
2149 if ((softc->quirks & SA_QUIRK_1FM) == 0)
2150 softc->quirks |= SA_QUIRK_2FM;
2151#endif
2152 } else
2153 xpt_release_ccb(ccb);
2154
2155 /*
2156 * If we return an error, we're not mounted any more,
2157 * so release any device reservation.
2158 */
2159 if (error != 0) {
2160 (void) sareservereleaseunit(periph, FALSE);
2161 }
2162 return (error);
2163}
2164
2165static int
2166sacheckeod(struct cam_periph *periph)
2167{
2168 int error;
2169 int markswanted;
2170 struct sa_softc *softc;
2171
2172 softc = (struct sa_softc *)periph->softc;
2173 markswanted = 0;
2174
2175 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) {
2176 markswanted++;
2177 if (softc->quirks & SA_QUIRK_2FM)
2178 markswanted++;
2179 }
2180
2181 if (softc->filemarks < markswanted) {
2182 markswanted -= softc->filemarks;
2183 error = sawritefilemarks(periph, markswanted, FALSE);
2184 } else {
2185 error = 0;
2186 }
2187 return (error);
2188}
2189
2190static int
2191saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs)
2192{
2193 static const char *toobig =
2194 "%d-byte tape record bigger than suplied buffer\n";
2195 struct cam_periph *periph;
2196 struct sa_softc *softc;
2197 struct ccb_scsiio *csio;
2198 struct scsi_sense_data *sense;
2199 u_int32_t resid = 0;
2200 int32_t info = 0;
2201 int error_code, sense_key, asc, ascq;
2202 int error, defer_action;
2203
2204 periph = xpt_path_periph(ccb->ccb_h.path);
2205 softc = (struct sa_softc *)periph->softc;
2206 csio = &ccb->csio;
2207 sense = &csio->sense_data;
2208 scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq);
2209 error = 0;
2210
2211 /*
2212 * Calculate/latch up, any residuals...
2213 */
2214 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) {
2215 if ((sense->error_code & SSD_ERRCODE_VALID) != 0) {
2216 info = (int32_t) scsi_4btoul(sense->info);
2217 resid = info;
2218 if ((softc->flags & SA_FLAG_FIXED) != 0)
2219 resid *= softc->media_blksize;
2220 } else {
2221 resid = csio->dxfer_len;
2222 info = resid;
2223 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2224 if (softc->media_blksize)
2225 info /= softc->media_blksize;
2226 }
2227 }
2228 if (csio->ccb_h.ccb_type == SA_CCB_BUFFER_IO) {
2229 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense,
2230 sizeof (struct scsi_sense_data));
2231 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb,
2232 (int) csio->cdb_len);
2233 softc->last_io_resid = resid;
2234 } else {
2235 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense,
2236 sizeof (struct scsi_sense_data));
2237 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb,
2238 (int) csio->cdb_len);
2239 softc->last_ctl_resid = resid;
2240 }
2241 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("Key 0x%x ASC/ASCQ
2242 0x%x 0x%x flags 0x%x resid %d dxfer_len %d\n", sense_key,
2243 asc, ascq, sense->flags & ~SSD_KEY_RESERVED, resid,
2244 csio->dxfer_len));
2245 } else {
2246 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("Cam Status 0x%x\n",
2247 csio->ccb_h.status & CAM_STATUS_MASK));
2248 }
2249
2250 /*
2251 * If it's neither a SCSI Check Condition Error nor a non-read/write
2252 * command, let the common code deal with it the error setting.
2253 */
2254 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_SCSI_STATUS_ERROR ||
2255 (csio->ccb_h.ccb_type == SA_CCB_WAITING)) {
2256 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2257 }
2258
2259 /*
2260 * Calculate whether we'll defer action.
2261 */
2262
2263 if (resid > 0 && resid < csio->dxfer_len &&
2264 (softc->flags & SA_FLAG_FIXED) != 0) {
2265 defer_action = TRUE;
2266 } else {
2267 defer_action = FALSE;
2268 }
2269
2270 /*
2271 * Handle filemark, end of tape, mismatched record sizes....
2272 * From this point out, we're only handling read/write cases.
2273 * Handle writes && reads differently.
2274 */
2275
2276 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
2277 if (sense->flags & SSD_FILEMARK) {
2278 xpt_print_path(csio->ccb_h.path);
2279 printf("filemark detected on write?\n");
2280 if (softc->fileno != (daddr_t) -1) {
2281 softc->fileno++;
2282 softc->blkno = 0;
2283 }
2284 }
2285 if (sense->flags & SSD_EOM) {
2286 csio->resid = resid;
2287 if (defer_action) {
2288 error = -1;
2289 softc->flags |= SA_FLAG_EOM_PENDING;
2290 } else {
2291 error = ENOSPC;
2292 }
2293 }
2294 } else {
2295 if (sense_key == SSD_KEY_BLANK_CHECK) {
2296 csio->resid = resid;
2297 if (defer_action) {
2298 error = -1;
2299 softc->flags |= SA_FLAG_EOM_PENDING;
2300 } else {
2301 error = EIO;
2302 }
2303 }
2304 if (sense->flags & SSD_FILEMARK) {
2305 csio->resid = resid;
2306 if (defer_action) {
2307 error = -1;
2308 softc->flags |= SA_FLAG_EOF_PENDING;
2309 }
2310 /*
2311 * Unconditionally, if we detected a filemark on a read,
2312 * mark that we've run moved a file ahead.
2313 */
2314 if (softc->fileno != (daddr_t) -1) {
2315 softc->fileno++;
2316 softc->blkno = 0;
2317 }
2318 }
2319 }
2320 /*
2321 * Incorrect Length usually applies to read, but can apply to writes.
2322 */
2323 if (error == 0 && (sense->flags & SSD_ILI)) {
2324 if (info < 0) {
2325 xpt_print_path(csio->ccb_h.path);
2326 printf(toobig, csio->dxfer_len - info);
2327 csio->resid = csio->dxfer_len;
2328 error = EIO;
2329 } else {
2330 csio->resid = resid;
2331 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2332 if (defer_action)
2333 softc->flags |= SA_FLAG_EIO_PENDING;
2334 else
2335 error = EIO;
2336 }
2337 /*
2338 * Bump the block number if we hadn't seen a filemark.
2339 * Do this independent of errors (we've moved anyway).
2340 */
2341 if ((sense->flags & SSD_FILEMARK) == 0) {
2342 if (softc->blkno != (daddr_t) -1) {
2343 softc->blkno++;
2344 }
2345 }
2346 }
2347 }
2348 if (error == 0)
2349 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2350
2351 if (error == -1)
2352 return (0);
2353 else
2354 return (error);
2355}
2356
2357static int
2358sagetparams(struct cam_periph *periph, sa_params params_to_get,
2359 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks,
2360 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed,
2361 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm,
2362 sa_comp_t *tcs)
2363{
2364 union ccb *ccb;
2365 void *mode_buffer;
2366 struct scsi_mode_header_6 *mode_hdr;
2367 struct scsi_mode_blk_desc *mode_blk;
2368 int mode_buffer_len;
2369 struct sa_softc *softc;
2370 u_int8_t cpage;
2371 int error;
2372 cam_status status;
2373
2374 softc = (struct sa_softc *)periph->softc;
2375 ccb = cam_periph_getccb(periph, 1);
2376 cpage = SA_DATA_COMPRESSION_PAGE;
2377
2378retry:
2379 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2380
2381 if (params_to_get & SA_PARAM_COMPRESSION) {
2382 if (softc->quirks & SA_QUIRK_NOCOMP) {
2383 *comp_supported = FALSE;
2384 params_to_get &= ~SA_PARAM_COMPRESSION;
2385 } else
2386 mode_buffer_len += sizeof (sa_comp_t);
2387 }
2388
2389 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK);
2390 bzero(mode_buffer, mode_buffer_len);
2391 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2392 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2393
2394 /* it is safe to retry this */
2395 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2396 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ?
2397 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len,
2398 SSD_FULL_SIZE, 5000);
2399
2400 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2401 &softc->device_stats);
2402 QFRLS(ccb);
2403
2404 status = ccb->ccb_h.status & CAM_STATUS_MASK;
2405
2406 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) {
2407 /*
2408 * Hmm. Let's see if we can try another page...
2409 * If we've already done that, give up on compression
2410 * for this device and remember this for the future
2411 * and attempt the request without asking for compression
2412 * info.
2413 */
2414 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2415 cpage = SA_DEVICE_CONFIGURATION_PAGE;
2416 goto retry;
2417 }
2418 softc->quirks |= SA_QUIRK_NOCOMP;
2419 free(mode_buffer, M_TEMP);
2420 goto retry;
2421 } else if (status == CAM_SCSI_STATUS_ERROR) {
2422 /* Tell the user about the fatal error. */
2423 scsi_sense_print(&ccb->csio);
2424 goto sagetparamsexit;
2425 }
2426
2427 /*
2428 * If the user only wants the compression information, and
2429 * the device doesn't send back the block descriptor, it's
2430 * no big deal. If the user wants more than just
2431 * compression, though, and the device doesn't pass back the
2432 * block descriptor, we need to send another mode sense to
2433 * get the block descriptor.
2434 */
2435 if ((mode_hdr->blk_desc_len == 0) &&
2436 (params_to_get & SA_PARAM_COMPRESSION) &&
2437 (params_to_get & ~(SA_PARAM_COMPRESSION))) {
2438
2439 /*
2440 * Decrease the mode buffer length by the size of
2441 * the compression page, to make sure the data
2442 * there doesn't get overwritten.
2443 */
2444 mode_buffer_len -= sizeof (sa_comp_t);
2445
2446 /*
2447 * Now move the compression page that we presumably
2448 * got back down the memory chunk a little bit so
2449 * it doesn't get spammed.
2450 */
2451 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t));
2452 bzero(&mode_hdr[0], sizeof (mode_hdr[0]));
2453
2454 /*
2455 * Now, we issue another mode sense and just ask
2456 * for the block descriptor, etc.
2457 */
2458
2459 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2460 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE,
2461 mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 5000);
2462
2463 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2464 &softc->device_stats);
2465 QFRLS(ccb);
2466
2467 if (error != 0)
2468 goto sagetparamsexit;
2469 }
2470
2471 if (params_to_get & SA_PARAM_BLOCKSIZE)
2472 *blocksize = scsi_3btoul(mode_blk->blklen);
2473
2474 if (params_to_get & SA_PARAM_NUMBLOCKS)
2475 *numblocks = scsi_3btoul(mode_blk->nblocks);
2476
2477 if (params_to_get & SA_PARAM_BUFF_MODE)
2478 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK;
2479
2480 if (params_to_get & SA_PARAM_DENSITY)
2481 *density = mode_blk->density;
2482
2483 if (params_to_get & SA_PARAM_WP)
2484 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE;
2485
2486 if (params_to_get & SA_PARAM_SPEED)
2487 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK;
2488
2489 if (params_to_get & SA_PARAM_COMPRESSION) {
2490 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1];
2491 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2492 struct scsi_data_compression_page *cp = &ntcs->dcomp;
2493 *comp_supported =
2494 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE;
2495 *comp_enabled =
2496 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE;
2497 *comp_algorithm = scsi_4btoul(cp->comp_algorithm);
2498 } else {
2499 struct scsi_dev_conf_page *cp = &ntcs->dconf;
2500 /*
2501 * We don't really know whether this device supports
2502 * Data Compression if the the algorithm field is
2503 * zero. Just say we do.
2504 */
2505 *comp_supported = TRUE;
2506 *comp_enabled =
2507 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE;
2508 *comp_algorithm = cp->sel_comp_alg;
2509 }
2510 if (tcs != NULL)
2511 bcopy(ntcs, tcs, sizeof (sa_comp_t));
2512 }
2513
2514 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2515 int idx;
2516 char *xyz = mode_buffer;
2517 xpt_print_path(periph->path);
2518 printf("Mode Sense Data=");
2519 for (idx = 0; idx < mode_buffer_len; idx++)
2520 printf(" 0x%02x", xyz[idx] & 0xff);
2521 printf("\n");
2522 }
2523
2524sagetparamsexit:
2525
2526 xpt_release_ccb(ccb);
2527 free(mode_buffer, M_TEMP);
2528 return (error);
2529}
2530
2531/*
2532 * The purpose of this function is to set one of four different parameters
2533 * for a tape drive:
2534 * - blocksize
2535 * - density
2536 * - compression / compression algorithm
2537 * - buffering mode
2538 *
2539 * The assumption is that this will be called from saioctl(), and therefore
2540 * from a process context. Thus the waiting malloc calls below. If that
2541 * assumption ever changes, the malloc calls should be changed to be
2542 * NOWAIT mallocs.
2543 *
2544 * Any or all of the four parameters may be set when this function is
2545 * called. It should handle setting more than one parameter at once.
2546 */
2547static int
2548sasetparams(struct cam_periph *periph, sa_params params_to_set,
2549 u_int32_t blocksize, u_int8_t density, u_int32_t calg,
2550 u_int32_t sense_flags)
2551{
2552 struct sa_softc *softc;
2553 u_int32_t current_blocksize;
2554 u_int32_t current_calg;
2555 u_int8_t current_density;
2556 u_int8_t current_speed;
2557 int comp_enabled, comp_supported;
2558 void *mode_buffer;
2559 int mode_buffer_len;
2560 struct scsi_mode_header_6 *mode_hdr;
2561 struct scsi_mode_blk_desc *mode_blk;
2562 sa_comp_t *ccomp, *cpage;
2563 int buff_mode;
2564 union ccb *ccb = NULL;
2565 int error;
2566
2567 softc = (struct sa_softc *)periph->softc;
2568
2569 ccomp = malloc(sizeof (sa_comp_t), M_TEMP, M_WAITOK);
2570
2571 /*
2572 * Since it doesn't make sense to set the number of blocks, or
2573 * write protection, we won't try to get the current value. We
2574 * always want to get the blocksize, so we can set it back to the
2575 * proper value.
2576 */
2577 error = sagetparams(periph,
2578 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED,
2579 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL,
2580 ¤t_speed, &comp_supported, &comp_enabled,
2581 ¤t_calg, ccomp);
2582
2583 if (error != 0) {
2584 free(ccomp, M_TEMP);
2585 return (error);
2586 }
2587
2588 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2589 if (params_to_set & SA_PARAM_COMPRESSION)
2590 mode_buffer_len += sizeof (sa_comp_t);
2591
2592 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK);
2593 bzero(mode_buffer, mode_buffer_len);
2594
2595 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2596 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2597
2598 ccb = cam_periph_getccb(periph, 1);
2599
2600retry:
2601
2602 if (params_to_set & SA_PARAM_COMPRESSION) {
2603 if (mode_blk) {
2604 cpage = (sa_comp_t *)&mode_blk[1];
2605 } else {
2606 cpage = (sa_comp_t *)&mode_hdr[1];
2607 }
2608 bcopy(ccomp, cpage, sizeof (sa_comp_t));
2609 cpage->hdr.pagecode &= ~0x80;
2610 } else
2611 cpage = NULL;
2612
2613 /*
2614 * If the caller wants us to set the blocksize, use the one they
2615 * pass in. Otherwise, use the blocksize we got back from the
2616 * mode select above.
2617 */
2618 if (mode_blk) {
2619 if (params_to_set & SA_PARAM_BLOCKSIZE)
2620 scsi_ulto3b(blocksize, mode_blk->blklen);
2621 else
2622 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2623
2624 /*
2625 * Set density if requested, else preserve old density.
2626 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2627 * devices, else density we've latched up in our softc.
2628 */
2629 if (params_to_set & SA_PARAM_DENSITY) {
2630 mode_blk->density = density;
2631 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2632 mode_blk->density = SCSI_SAME_DENSITY;
2633 } else {
2634 mode_blk->density = softc->media_density;
2635 }
2636 }
2637
2638 /*
2639 * For mode selects, these two fields must be zero.
2640 */
2641 mode_hdr->data_length = 0;
2642 mode_hdr->medium_type = 0;
2643
2644 /* set the speed to the current value */
2645 mode_hdr->dev_spec = current_speed;
2646
2647 /* set single-initiator buffering mode */
2648 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
2649
2650 if (mode_blk)
2651 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc);
2652 else
2653 mode_hdr->blk_desc_len = 0;
2654
2655 /*
2656 * First, if the user wants us to set the compression algorithm or
2657 * just turn compression on, check to make sure that this drive
2658 * supports compression.
2659 */
2660 if (params_to_set & SA_PARAM_COMPRESSION) {
2661 /*
2662 * If the compression algorithm is 0, disable compression.
2663 * If the compression algorithm is non-zero, enable
2664 * compression and set the compression type to the
2665 * specified compression algorithm, unless the algorithm is
2666 * MT_COMP_ENABLE. In that case, we look at the
2667 * compression algorithm that is currently set and if it is
2668 * non-zero, we leave it as-is. If it is zero, and we have
2669 * saved a compression algorithm from a time when
2670 * compression was enabled before, set the compression to
2671 * the saved value.
2672 */
2673 switch (ccomp->hdr.pagecode & ~0x80) {
2674 case SA_DATA_COMPRESSION_PAGE:
2675 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) {
2676 struct scsi_data_compression_page *dcp = &cpage->dcomp;
2677 if (calg == 0) {
2678 /*
2679 * Disable compression, but leave the
2680 * decompression and the capability bit
2681 * alone.
2682 */
2683 dcp->dce_and_dcc = SA_DCP_DCC;
2684 dcp->dde_and_red |= SA_DCP_DDE;
2685 break;
2686 }
2687 /* enable compression && decompression */
2688 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC;
2689 dcp->dde_and_red |= SA_DCP_DDE;
2690 /*
2691 * If there, use compression algorithm from caller.
2692 * Otherwise, if there's a saved compression algorithm
2693 * and there is no current algorithm, use the saved
2694 * algorithm. Else parrot back what we got and hope
2695 * for the best.
2696 */
2697 if (calg != MT_COMP_ENABLE) {
2698 scsi_ulto4b(calg, dcp->comp_algorithm);
2699 scsi_ulto4b(calg, dcp->decomp_algorithm);
2700 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 &&
2701 softc->saved_comp_algorithm != 0) {
2702 scsi_ulto4b(softc->saved_comp_algorithm,
2703 dcp->comp_algorithm);
2704 scsi_ulto4b(softc->saved_comp_algorithm,
2705 dcp->decomp_algorithm);
2706 }
2707 break;
2708 }
2709 case SA_DEVICE_CONFIGURATION_PAGE:
2710 {
2711 struct scsi_dev_conf_page *dcp = &cpage->dconf;
2712 if (calg == 0) {
2713 dcp->sel_comp_alg = SA_COMP_NONE;
2714 break;
2715 }
2716 if (calg != MT_COMP_ENABLE) {
2717 dcp->sel_comp_alg = calg;
2718 } else if (dcp->sel_comp_alg == SA_COMP_NONE &&
2719 softc->saved_comp_algorithm != 0) {
2720 dcp->sel_comp_alg = softc->saved_comp_algorithm;
2721 }
2722 break;
2723 }
2724 default:
2725 /*
2726 * The drive doesn't seem to support compression,
2727 * so turn off the set compression bit.
2728 */
2729 params_to_set &= ~SA_PARAM_COMPRESSION;
2730 xpt_print_path(periph->path);
2731 printf("device does not seem to support compression\n");
2732
2733 /*
2734 * If that was the only thing the user wanted us to set,
2735 * clean up allocated resources and return with
2736 * 'operation not supported'.
2737 */
2738 if (params_to_set == SA_PARAM_NONE) {
2739 free(mode_buffer, M_TEMP);
2740 xpt_release_ccb(ccb);
2741 return (ENODEV);
2742 }
2743
2744 /*
2745 * That wasn't the only thing the user wanted us to set.
2746 * So, decrease the stated mode buffer length by the
2747 * size of the compression mode page.
2748 */
2749 mode_buffer_len -= sizeof(sa_comp_t);
2750 }
2751 }
2752
2753 /* It is safe to retry this operation */
2754 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
2755 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE,
2756 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 5000);
2757
2758 error = cam_periph_runccb(ccb, saerror, 0,
2759 sense_flags, &softc->device_stats);
2760 QFRLS(ccb);
2761
2762 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2763 int idx;
2764 char *xyz = mode_buffer;
2765 xpt_print_path(periph->path);
2766 printf("Err%d, Mode Select Data=", error);
2767 for (idx = 0; idx < mode_buffer_len; idx++)
2768 printf(" 0x%02x", xyz[idx] & 0xff);
2769 printf("\n");
2770 }
2771
2772
2773 if (error) {
2774 /*
2775 * If we can, try without setting density/blocksize.
2776 */
2777 if (mode_blk) {
2778 if ((params_to_set &
2779 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) {
2780 mode_blk = NULL;
2781 goto retry;
2782 }
2783 } else {
2784 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2785 cpage = (sa_comp_t *)&mode_blk[1];
2786 }
2787
2788 /*
2789 * If we were setting the blocksize, and that failed, we
2790 * want to set it to its original value. If we weren't
2791 * setting the blocksize, we don't want to change it.
2792 */
2793 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2794
2795 /*
2796 * Set density if requested, else preserve old density.
2797 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2798 * devices, else density we've latched up in our softc.
2799 */
2800 if (params_to_set & SA_PARAM_DENSITY) {
2801 mode_blk->density = current_density;
2802 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2803 mode_blk->density = SCSI_SAME_DENSITY;
2804 } else {
2805 mode_blk->density = softc->media_density;
2806 }
2807
2808 if (params_to_set & SA_PARAM_COMPRESSION)
2809 bcopy(ccomp, cpage, sizeof (sa_comp_t));
2810
2811 /*
2812 * The retry count is the only CCB field that might have been
2813 * changed that we care about, so reset it back to 1.
2814 */
2815 ccb->ccb_h.retry_count = 1;
2816 cam_periph_runccb(ccb, saerror, 0, sense_flags,
2817 &softc->device_stats);
2818 QFRLS(ccb);
2819 }
2820
2821 xpt_release_ccb(ccb);
2822
2823 if (ccomp != NULL)
2824 free(ccomp, M_TEMP);
2825
2826 if (params_to_set & SA_PARAM_COMPRESSION) {
2827 if (error) {
2828 softc->flags &= ~SA_FLAG_COMP_ENABLED;
2829 /*
2830 * Even if we get an error setting compression,
2831 * do not say that we don't support it. We could
2832 * have been wrong, or it may be media specific.
2833 * softc->flags &= ~SA_FLAG_COMP_SUPP;
2834 */
2835 softc->saved_comp_algorithm = softc->comp_algorithm;
2836 softc->comp_algorithm = 0;
2837 } else {
2838 softc->flags |= SA_FLAG_COMP_ENABLED;
2839 softc->comp_algorithm = calg;
2840 }
2841 }
2842
2843 free(mode_buffer, M_TEMP);
2844 return (error);
2845}
2846
2847static void
2848saprevent(struct cam_periph *periph, int action)
2849{
2850 struct sa_softc *softc;
2851 union ccb *ccb;
2852 int error, sf;
2853
2854 softc = (struct sa_softc *)periph->softc;
2855
2856 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0)
2857 return;
2858 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
2859 return;
2860
2861 /*
2862 * We can be quiet about illegal requests.
2863 */
2864 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2865 sf = 0;
2866 } else
2867 sf = SF_QUIET_IR;
2868
2869 ccb = cam_periph_getccb(periph, 1);
2870
2871 /* It is safe to retry this operation */
2872 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
2873 SSD_FULL_SIZE, 100000);
2874
2875 error = cam_periph_runccb(ccb, saerror, 0, sf, &softc->device_stats);
2876 QFRLS(ccb);
2877 if (error == 0) {
2878 if (action == PR_ALLOW)
2879 softc->flags &= ~SA_FLAG_TAPE_LOCKED;
2880 else
2881 softc->flags |= SA_FLAG_TAPE_LOCKED;
2882 }
2883
2884 xpt_release_ccb(ccb);
2885}
2886
2887static int
2888sarewind(struct cam_periph *periph)
2889{
2890 union ccb *ccb;
2891 struct sa_softc *softc;
2892 int error;
2893
2894 softc = (struct sa_softc *)periph->softc;
2895
2896 ccb = cam_periph_getccb(periph, 1);
2897
2898 /* It is safe to retry this operation */
2899 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2900 SSD_FULL_SIZE, REWIND_TIMEOUT);
2901
2902 softc->dsreg = MTIO_DSREG_REW;
2903 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
2904 softc->dsreg = MTIO_DSREG_REST;
2905
2906 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2907 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
2908
2909 xpt_release_ccb(ccb);
2910 if (error == 0)
2911 softc->fileno = softc->blkno = (daddr_t) 0;
2912 else
2913 softc->fileno = softc->blkno = (daddr_t) -1;
2914 return (error);
2915}
2916
2917static int
2918saspace(struct cam_periph *periph, int count, scsi_space_code code)
2919{
2920 union ccb *ccb;
2921 struct sa_softc *softc;
2922 int error;
2923
2924 softc = (struct sa_softc *)periph->softc;
2925
2926 ccb = cam_periph_getccb(periph, 1);
2927
2928 /* This cannot be retried */
2929
2930 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count,
2931 SSD_FULL_SIZE, SPACE_TIMEOUT);
2932
2933 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD;
2934 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
2935 softc->dsreg = MTIO_DSREG_REST;
2936
2937 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2938 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
2939
2940 xpt_release_ccb(ccb);
2941
2942 /*
2943 * If a spacing operation has failed, we need to invalidate
2944 * this mount.
2945 *
2946 * If the spacing operation was setmarks or to end of recorded data,
2947 * we no longer know our relative position.
2948 *
2949 * We are not managing residuals here (really).
2950 */
2951 if (error) {
2952 softc->fileno = softc->blkno = (daddr_t) -1;
2953 } else if (code == SS_SETMARKS || code == SS_EOD) {
2954 softc->fileno = softc->blkno = (daddr_t) -1;
2955 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) {
2956 softc->fileno += count;
2957 softc->blkno = 0;
2958 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) {
2959 softc->blkno += count;
2960 }
2961 return (error);
2962}
2963
2964static int
2965sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks)
2966{
2967 union ccb *ccb;
2968 struct sa_softc *softc;
2969 int error;
2970
2971 softc = (struct sa_softc *)periph->softc;
2972
2973 ccb = cam_periph_getccb(periph, 1);
2974
2975 softc->dsreg = MTIO_DSREG_FMK;
2976 /* this *must* not be retried */
2977 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG,
2978 FALSE, setmarks, nmarks, SSD_FULL_SIZE, 60000);
2979 softc->dsreg = MTIO_DSREG_REST;
2980
2981
2982 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
2983
2984 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2985 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
2986
2987 /*
2988 * XXXX: Get back the actual number of filemarks written
2989 * XXXX: (there can be a residual).
2990 */
2991 if (error == 0 && nmarks) {
2992 struct sa_softc *softc = (struct sa_softc *)periph->softc;
2993 softc->filemarks += nmarks;
2994 }
2995 xpt_release_ccb(ccb);
2996
2997 /*
2998 * Update relative positions (if we're doing that).
2999 */
3000 if (error) {
3001 softc->fileno = softc->blkno = (daddr_t) -1;
3002 } else if (softc->fileno != (daddr_t) -1) {
3003 softc->fileno += nmarks;
3004 softc->blkno = 0;
3005 }
3006 return (error);
3007}
3008
3009static int
3010sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3011{
3012 struct scsi_tape_position_data loc;
3013 union ccb *ccb;
3014 struct sa_softc *softc = (struct sa_softc *)periph->softc;
3015 int error;
3016
3017 /*
3018 * We have to try and flush any buffered writes here if we were writing.
3019 *
3020 * The SCSI specification is vague enough about situations like
3021 * different sized blocks in a tape drive buffer as to make one
3022 * wary about trying to figure out the actual block location value
3023 * if data is in the tape drive buffer.
3024 */
3025 ccb = cam_periph_getccb(periph, 1);
3026
3027 if (softc->flags & SA_FLAG_TAPE_WRITTEN) {
3028 error = sawritefilemarks(periph, 0, 0);
3029 if (error && error != EACCES)
3030 return (error);
3031 }
3032
3033 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3034 hard, &loc, SSD_FULL_SIZE, 5000);
3035 softc->dsreg = MTIO_DSREG_RBSY;
3036 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3037 softc->dsreg = MTIO_DSREG_REST;
3038 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3039 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3040
3041 if (error == 0) {
3042 if (loc.flags & SA_RPOS_UNCERTAIN) {
3043 error = EINVAL; /* nothing is certain */
3044 } else {
3045#if 0
3046 u_int32_t firstblk, lastblk, nbufblk, nbufbyte;
3047
3048 firstblk = scsi_4btoul(loc.firstblk);
3049 lastblk = scsi_4btoul(loc.lastblk);
3050 nbufblk = scsi_4btoul(loc.nbufblk);
3051 nbufbyte = scsi_4btoul(loc.nbufbyte);
3052 if (lastblk || nbufblk || nbufbyte) {
3053 xpt_print_path(periph->path);
3054 printf("rdpos firstblk 0x%x lastblk 0x%x bufblk"
3055 " 0x%x bufbyte 0x%x\n", firstblk, lastblk,
3056 nbufblk, nbufbyte);
3057 }
3058 *blkptr = firstblk;
3059#else
3060 *blkptr = scsi_4btoul(loc.firstblk);
3061#endif
3062 }
3063 }
3064
3065 xpt_release_ccb(ccb);
3066 return (error);
3067}
3068
3069static int
3070sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3071{
3072 union ccb *ccb;
3073 struct sa_softc *softc;
3074 int error;
3075
3076 /*
3077 * We used to try and flush any buffered writes here.
3078 * Now we push this onto user applications to either
3079 * flush the pending writes themselves (via a zero count
3080 * WRITE FILEMARKS command) or they can trust their tape
3081 * drive to do this correctly for them.
3082 */
3083
3084 softc = (struct sa_softc *)periph->softc;
3085 ccb = cam_periph_getccb(periph, 1);
3086
3087
3088 scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3089 hard, *blkptr, SSD_FULL_SIZE, 60 * 60 * 1000);
3090
3091 softc->dsreg = MTIO_DSREG_POS;
3092 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3093 softc->dsreg = MTIO_DSREG_REST;
3094 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3095 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3096 xpt_release_ccb(ccb);
3097 /*
3098 * Note relative file && block number position as now unknown.
3099 */
3100 softc->fileno = softc->blkno = (daddr_t) -1;
3101 return (error);
3102}
3103
3104static int
3105saretension(struct cam_periph *periph)
3106{
3107 union ccb *ccb;
3108 struct sa_softc *softc;
3109 int error;
3110
3111 softc = (struct sa_softc *)periph->softc;
3112
3113 ccb = cam_periph_getccb(periph, 1);
3114
3115 /* It is safe to retry this operation */
3116 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3117 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT);
3118
3119 softc->dsreg = MTIO_DSREG_TEN;
3120 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3121 softc->dsreg = MTIO_DSREG_REST;
3122
3123 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3124 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3125 xpt_release_ccb(ccb);
3126 if (error == 0)
3127 softc->fileno = softc->blkno = (daddr_t) 0;
3128 else
3129 softc->fileno = softc->blkno = (daddr_t) -1;
3130 return (error);
3131}
3132
3133static int
3134sareservereleaseunit(struct cam_periph *periph, int reserve)
3135{
3136 union ccb *ccb;
3137 struct sa_softc *softc;
3138 int error;
3139
3140 softc = (struct sa_softc *)periph->softc;
3141 ccb = cam_periph_getccb(periph, 1);
3142
3143 /* It is safe to retry this operation */
3144 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
3145 FALSE, 0, SSD_FULL_SIZE, 5000, reserve);
3146 softc->dsreg = MTIO_DSREG_RBSY;
3147 error = cam_periph_runccb(ccb, saerror, 0,
3148 SF_RETRY_UA | SF_NO_PRINT, &softc->device_stats);
3149 softc->dsreg = MTIO_DSREG_REST;
3150 QFRLS(ccb);
3151 xpt_release_ccb(ccb);
3152
3153 /*
3154 * If the error was Illegal Request, then the device doesn't support
3155 * RESERVE/RELEASE. This is not an error.
3156 */
3157 if (error == EINVAL) {
3158 error = 0;
3159 }
3160
3161 return (error);
3162}
3163
3164static int
3165saloadunload(struct cam_periph *periph, int load)
3166{
3167 union ccb *ccb;
3168 struct sa_softc *softc;
3169 int error;
3170
3171 softc = (struct sa_softc *)periph->softc;
3172
3173 ccb = cam_periph_getccb(periph, 1);
3174
3175 /* It is safe to retry this operation */
3176 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3177 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT);
3178
3179 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL;
3180 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3181 softc->dsreg = MTIO_DSREG_REST;
3182 QFRLS(ccb);
3183 xpt_release_ccb(ccb);
3184
3185 if (error || load == 0)
3186 softc->fileno = softc->blkno = (daddr_t) -1;
3187 else if (error == 0)
3188 softc->fileno = softc->blkno = (daddr_t) 0;
3189 return (error);
3190}
3191
3192static int
3193saerase(struct cam_periph *periph, int longerase)
3194{
3195
3196 union ccb *ccb;
3197 struct sa_softc *softc;
3198 int error;
3199
3200 softc = (struct sa_softc *)periph->softc;
3201
3202 ccb = cam_periph_getccb(periph, 1);
3203
3204 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase,
3205 SSD_FULL_SIZE, ERASE_TIMEOUT);
3206
3207 softc->dsreg = MTIO_DSREG_ZER;
3208 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3209 softc->dsreg = MTIO_DSREG_REST;
3210
3211 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3212 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3213 xpt_release_ccb(ccb);
3214 return (error);
3215}
3216
3217#endif /* _KERNEL */
3218
3219/*
3220 * Read tape block limits command.
3221 */
3222void
3223scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries,
3224 void (*cbfcnp)(struct cam_periph *, union ccb *),
3225 u_int8_t tag_action,
3226 struct scsi_read_block_limits_data *rlimit_buf,
3227 u_int8_t sense_len, u_int32_t timeout)
3228{
3229 struct scsi_read_block_limits *scsi_cmd;
3230
3231 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3232 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len,
3233 sizeof(*scsi_cmd), timeout);
3234
3235 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes;
3236 bzero(scsi_cmd, sizeof(*scsi_cmd));
3237 scsi_cmd->opcode = READ_BLOCK_LIMITS;
3238}
3239
3240void
3241scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
3242 void (*cbfcnp)(struct cam_periph *, union ccb *),
3243 u_int8_t tag_action, int readop, int sli,
3244 int fixed, u_int32_t length, u_int8_t *data_ptr,
3245 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout)
3246{
3247 struct scsi_sa_rw *scsi_cmd;
3248
3249 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes;
3250 scsi_cmd->opcode = readop ? SA_READ : SA_WRITE;
3251 scsi_cmd->sli_fixed = 0;
3252 if (sli && readop)
3253 scsi_cmd->sli_fixed |= SAR_SLI;
3254 if (fixed)
3255 scsi_cmd->sli_fixed |= SARW_FIXED;
3256 scsi_ulto3b(length, scsi_cmd->length);
3257 scsi_cmd->control = 0;
3258
3259 cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT,
3260 tag_action, data_ptr, dxfer_len, sense_len,
3261 sizeof(*scsi_cmd), timeout);
3262}
3263
3264void
3265scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
3266 void (*cbfcnp)(struct cam_periph *, union ccb *),
3267 u_int8_t tag_action, int immediate, int eot,
3268 int reten, int load, u_int8_t sense_len,
3269 u_int32_t timeout)
3270{
3271 struct scsi_load_unload *scsi_cmd;
3272
3273 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes;
3274 bzero(scsi_cmd, sizeof(*scsi_cmd));
3275 scsi_cmd->opcode = LOAD_UNLOAD;
3276 if (immediate)
3277 scsi_cmd->immediate = SLU_IMMED;
3278 if (eot)
3279 scsi_cmd->eot_reten_load |= SLU_EOT;
3280 if (reten)
3281 scsi_cmd->eot_reten_load |= SLU_RETEN;
3282 if (load)
3283 scsi_cmd->eot_reten_load |= SLU_LOAD;
3284
3285 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
3286 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout);
3287}
3288
3289void
3290scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
3291 void (*cbfcnp)(struct cam_periph *, union ccb *),
3292 u_int8_t tag_action, int immediate, u_int8_t sense_len,
3293 u_int32_t timeout)
3294{
3295 struct scsi_rewind *scsi_cmd;
3296
3297 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes;
3298 bzero(scsi_cmd, sizeof(*scsi_cmd));
3299 scsi_cmd->opcode = REWIND;
3300 if (immediate)
3301 scsi_cmd->immediate = SREW_IMMED;
3302
3303 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3304 0, sense_len, sizeof(*scsi_cmd), timeout);
3305}
3306
3307void
3308scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
3309 void (*cbfcnp)(struct cam_periph *, union ccb *),
3310 u_int8_t tag_action, scsi_space_code code,
3311 u_int32_t count, u_int8_t sense_len, u_int32_t timeout)
3312{
3313 struct scsi_space *scsi_cmd;
3314
3315 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes;
3316 scsi_cmd->opcode = SPACE;
3317 scsi_cmd->code = code;
3318 scsi_ulto3b(count, scsi_cmd->count);
3319 scsi_cmd->control = 0;
3320
3321 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3322 0, sense_len, sizeof(*scsi_cmd), timeout);
3323}
3324
3325void
3326scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
3327 void (*cbfcnp)(struct cam_periph *, union ccb *),
3328 u_int8_t tag_action, int immediate, int setmark,
3329 u_int32_t num_marks, u_int8_t sense_len,
3330 u_int32_t timeout)
3331{
3332 struct scsi_write_filemarks *scsi_cmd;
3333
3334 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes;
3335 bzero(scsi_cmd, sizeof(*scsi_cmd));
3336 scsi_cmd->opcode = WRITE_FILEMARKS;
3337 if (immediate)
3338 scsi_cmd->byte2 |= SWFMRK_IMMED;
3339 if (setmark)
3340 scsi_cmd->byte2 |= SWFMRK_WSMK;
3341
3342 scsi_ulto3b(num_marks, scsi_cmd->num_marks);
3343
3344 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3345 0, sense_len, sizeof(*scsi_cmd), timeout);
3346}
3347
3348/*
3349 * The reserve and release unit commands differ only by their opcodes.
3350 */
3351void
3352scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
3353 void (*cbfcnp)(struct cam_periph *, union ccb *),
3354 u_int8_t tag_action, int third_party,
3355 int third_party_id, u_int8_t sense_len,
3356 u_int32_t timeout, int reserve)
3357{
3358 struct scsi_reserve_release_unit *scsi_cmd;
3359
3360 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes;
3361 bzero(scsi_cmd, sizeof(*scsi_cmd));
3362
3363 if (reserve)
3364 scsi_cmd->opcode = RESERVE_UNIT;
3365 else
3366 scsi_cmd->opcode = RELEASE_UNIT;
3367
3368 if (third_party) {
3369 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY;
3370 scsi_cmd->lun_thirdparty |=
3371 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK);
3372 }
3373
3374 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3375 0, sense_len, sizeof(*scsi_cmd), timeout);
3376}
3377
3378void
3379scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
3380 void (*cbfcnp)(struct cam_periph *, union ccb *),
3381 u_int8_t tag_action, int immediate, int long_erase,
3382 u_int8_t sense_len, u_int32_t timeout)
3383{
3384 struct scsi_erase *scsi_cmd;
3385
3386 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes;
3387 bzero(scsi_cmd, sizeof(*scsi_cmd));
3388
3389 scsi_cmd->opcode = ERASE;
3390
3391 if (immediate)
3392 scsi_cmd->lun_imm_long |= SE_IMMED;
3393
3394 if (long_erase)
3395 scsi_cmd->lun_imm_long |= SE_LONG;
3396
3397 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3398 0, sense_len, sizeof(*scsi_cmd), timeout);
3399}
3400
3401/*
3402 * Read Tape Position command.
3403 */
3404void
3405scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries,
3406 void (*cbfcnp)(struct cam_periph *, union ccb *),
3407 u_int8_t tag_action, int hardsoft,
3408 struct scsi_tape_position_data *sbp,
3409 u_int8_t sense_len, u_int32_t timeout)
3410{
3411 struct scsi_tape_read_position *scmd;
3412
3413 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3414 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout);
3415 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
3416 bzero(scmd, sizeof(*scmd));
3417 scmd->opcode = READ_POSITION;
3418 scmd->byte1 = hardsoft;
3419}
3420
3421/*
3422 * Set Tape Position command.
3423 */
3424void
3425scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries,
3426 void (*cbfcnp)(struct cam_periph *, union ccb *),
3427 u_int8_t tag_action, int hardsoft, u_int32_t blkno,
3428 u_int8_t sense_len, u_int32_t timeout)
3429{
3430 struct scsi_tape_locate *scmd;
3431
3432 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
3433 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout);
3434 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
3435 bzero(scmd, sizeof(*scmd));
3436 scmd->opcode = LOCATE;
3437 if (hardsoft)
3438 scmd->byte1 |= SA_SPOS_BT;
3439 scsi_ulto4b(blkno, scmd->blkaddr);
3440}
| 1698 biodone(bp);
1699 break;
1700 }
1701 case SA_CCB_WAITING:
1702 {
1703 /* Caller will release the CCB */
1704 wakeup(&done_ccb->ccb_h.cbfcnp);
1705 return;
1706 }
1707 }
1708 xpt_release_ccb(done_ccb);
1709}
1710
1711/*
1712 * Mount the tape (make sure it's ready for I/O).
1713 */
1714static int
1715samount(struct cam_periph *periph, int oflags, dev_t dev)
1716{
1717 struct sa_softc *softc;
1718 union ccb *ccb;
1719 int error;
1720
1721 /*
1722 * oflags can be checked for 'kind' of open (read-only check) - later
1723 * dev can be checked for a control-mode or compression open - later
1724 */
1725 UNUSED_PARAMETER(oflags);
1726 UNUSED_PARAMETER(dev);
1727
1728
1729 softc = (struct sa_softc *)periph->softc;
1730
1731 /*
1732 * This should determine if something has happend since the last
1733 * open/mount that would invalidate the mount. We do *not* want
1734 * to retry this command- we just want the status. But we only
1735 * do this if we're mounted already- if we're not mounted,
1736 * we don't care about the unit read state and can instead use
1737 * this opportunity to attempt to reserve the tape unit.
1738 */
1739
1740 if (softc->flags & SA_FLAG_TAPE_MOUNTED) {
1741 ccb = cam_periph_getccb(periph, 1);
1742 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1743 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
1744 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1745 &softc->device_stats);
1746 QFRLS(ccb);
1747 if (error == ENXIO) {
1748 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1749 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1750 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
1751 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1752 &softc->device_stats);
1753 QFRLS(ccb);
1754 } else if (error) {
1755 /*
1756 * We don't need to freeze the tape because we
1757 * will now attempt to rewind/load it.
1758 */
1759 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1760 if (CAM_DEBUGGED(ccb->ccb_h.path, CAM_DEBUG_INFO)) {
1761 xpt_print_path(ccb->ccb_h.path);
1762 printf("error %d on TUR in samount\n", error);
1763 }
1764 }
1765 } else {
1766 error = sareservereleaseunit(periph, TRUE);
1767 if (error) {
1768 return (error);
1769 }
1770 ccb = cam_periph_getccb(periph, 1);
1771 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1772 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, 5 * 60 * 1000);
1773 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1774 &softc->device_stats);
1775 QFRLS(ccb);
1776 }
1777
1778 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
1779 struct scsi_read_block_limits_data *rblim = NULL;
1780 int comp_enabled, comp_supported;
1781 u_int8_t write_protect, guessing = 0;
1782
1783 /*
1784 * Clear out old state.
1785 */
1786 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN|
1787 SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED|
1788 SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP);
1789 softc->filemarks = 0;
1790
1791 /*
1792 * *Very* first off, make sure we're loaded to BOT.
1793 */
1794 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
1795 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT);
1796 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1797 &softc->device_stats);
1798 QFRLS(ccb);
1799
1800 /*
1801 * In case this doesn't work, do a REWIND instead
1802 */
1803 if (error) {
1804 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
1805 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
1806 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1807 &softc->device_stats);
1808 QFRLS(ccb);
1809 }
1810 if (error) {
1811 xpt_release_ccb(ccb);
1812 goto exit;
1813 }
1814
1815 /*
1816 * Do a dummy test read to force access to the
1817 * media so that the drive will really know what's
1818 * there. We actually don't really care what the
1819 * blocksize on tape is and don't expect to really
1820 * read a full record.
1821 */
1822 rblim = (struct scsi_read_block_limits_data *)
1823 malloc(8192, M_TEMP, M_WAITOK);
1824 if (rblim == NULL) {
1825 xpt_print_path(ccb->ccb_h.path);
1826 printf("no memory for test read\n");
1827 xpt_release_ccb(ccb);
1828 error = ENOMEM;
1829 goto exit;
1830 }
1831
1832 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
1833 scsi_sa_read_write(&ccb->csio, 0, sadone,
1834 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
1835 (void *) rblim, 8192, SSD_FULL_SIZE,
1836 120 * 60 * 1000);
1837 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1838 &softc->device_stats);
1839 QFRLS(ccb);
1840 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
1841 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
1842 error = cam_periph_runccb(ccb, saerror, 0,
1843 SF_NO_PRINT | SF_RETRY_SELTO | SF_RETRY_UA,
1844 &softc->device_stats);
1845 QFRLS(ccb);
1846 if (error) {
1847 xpt_print_path(ccb->ccb_h.path);
1848 printf("unable to rewind after test read\n");
1849 xpt_release_ccb(ccb);
1850 goto exit;
1851 }
1852 }
1853
1854 /*
1855 * Next off, determine block limits.
1856 */
1857 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
1858 rblim, SSD_FULL_SIZE, 5000);
1859
1860 error = cam_periph_runccb(ccb, saerror, 0,
1861 SF_NO_PRINT | SF_RETRY_UA | SF_RETRY_SELTO,
1862 &softc->device_stats);
1863 QFRLS(ccb);
1864 xpt_release_ccb(ccb);
1865
1866 if (error != 0) {
1867 /*
1868 * If it's less than SCSI-2, READ BLOCK LIMITS is not
1869 * a MANDATORY command. Anyway- it doesn't matter-
1870 * we can proceed anyway.
1871 */
1872 softc->blk_gran = 0;
1873 softc->max_blk = ~0;
1874 softc->min_blk = 0;
1875 } else {
1876 if (softc->scsi_rev >= SCSI_REV_3) {
1877 softc->blk_gran = RBL_GRAN(rblim);
1878 } else {
1879 softc->blk_gran = 0;
1880 }
1881 /*
1882 * We take max_blk == min_blk to mean a default to
1883 * fixed mode- but note that whatever we get out of
1884 * sagetparams below will actually determine whether
1885 * we are actually *in* fixed mode.
1886 */
1887 softc->max_blk = scsi_3btoul(rblim->maximum);
1888 softc->min_blk = scsi_2btoul(rblim->minimum);
1889
1890
1891 }
1892 /*
1893 * Next, perform a mode sense to determine
1894 * current density, blocksize, compression etc.
1895 */
1896 error = sagetparams(periph, SA_PARAM_ALL,
1897 &softc->media_blksize,
1898 &softc->media_density,
1899 &softc->media_numblks,
1900 &softc->buffer_mode, &write_protect,
1901 &softc->speed, &comp_supported,
1902 &comp_enabled, &softc->comp_algorithm,
1903 NULL);
1904
1905 if (error != 0) {
1906 /*
1907 * We could work a little harder here. We could
1908 * adjust our attempts to get information. It
1909 * might be an ancient tape drive. If someone
1910 * nudges us, we'll do that.
1911 */
1912 goto exit;
1913 }
1914
1915 /*
1916 * If no quirk has determined that this is a device that is
1917 * preferred to be in fixed or variable mode, now is the time
1918 * to find out.
1919 */
1920 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) {
1921 guessing = 1;
1922 /*
1923 * This could be expensive to find out. Luckily we
1924 * only need to do this once. If we start out in
1925 * 'default' mode, try and set ourselves to one
1926 * of the densities that would determine a wad
1927 * of other stuff. Go from highest to lowest.
1928 */
1929 if (softc->media_density == SCSI_DEFAULT_DENSITY) {
1930 int i;
1931 static u_int8_t ctry[] = {
1932 SCSI_DENSITY_HALFINCH_PE,
1933 SCSI_DENSITY_HALFINCH_6250C,
1934 SCSI_DENSITY_HALFINCH_6250,
1935 SCSI_DENSITY_HALFINCH_1600,
1936 SCSI_DENSITY_HALFINCH_800,
1937 SCSI_DENSITY_QIC_4GB,
1938 SCSI_DENSITY_QIC_2GB,
1939 SCSI_DENSITY_QIC_525_320,
1940 SCSI_DENSITY_QIC_150,
1941 SCSI_DENSITY_QIC_120,
1942 SCSI_DENSITY_QIC_24,
1943 SCSI_DENSITY_QIC_11_9TRK,
1944 SCSI_DENSITY_QIC_11_4TRK,
1945 SCSI_DENSITY_QIC_1320,
1946 SCSI_DENSITY_QIC_3080,
1947 0
1948 };
1949 for (i = 0; ctry[i]; i++) {
1950 error = sasetparams(periph,
1951 SA_PARAM_DENSITY, 0, ctry[i],
1952 0, SF_NO_PRINT);
1953 if (error == 0) {
1954 softc->media_density = ctry[i];
1955 break;
1956 }
1957 }
1958 }
1959 switch (softc->media_density) {
1960 case SCSI_DENSITY_QIC_11_4TRK:
1961 case SCSI_DENSITY_QIC_11_9TRK:
1962 case SCSI_DENSITY_QIC_24:
1963 case SCSI_DENSITY_QIC_120:
1964 case SCSI_DENSITY_QIC_150:
1965 case SCSI_DENSITY_QIC_1320:
1966 case SCSI_DENSITY_QIC_3080:
1967 softc->quirks &= ~SA_QUIRK_2FM;
1968 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
1969 softc->last_media_blksize = 512;
1970 break;
1971 case SCSI_DENSITY_QIC_4GB:
1972 case SCSI_DENSITY_QIC_2GB:
1973 case SCSI_DENSITY_QIC_525_320:
1974 softc->quirks &= ~SA_QUIRK_2FM;
1975 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
1976 softc->last_media_blksize = 1024;
1977 break;
1978 default:
1979 softc->last_media_blksize =
1980 softc->media_blksize;
1981 softc->quirks |= SA_QUIRK_VARIABLE;
1982 break;
1983 }
1984 }
1985
1986 /*
1987 * If no quirk has determined that this is a device that needs
1988 * to have 2 Filemarks at EOD, now is the time to find out.
1989 */
1990
1991 if ((softc->quirks & SA_QUIRK_2FM) == 0) {
1992 switch (softc->media_density) {
1993 case SCSI_DENSITY_HALFINCH_800:
1994 case SCSI_DENSITY_HALFINCH_1600:
1995 case SCSI_DENSITY_HALFINCH_6250:
1996 case SCSI_DENSITY_HALFINCH_6250C:
1997 case SCSI_DENSITY_HALFINCH_PE:
1998 softc->quirks &= ~SA_QUIRK_1FM;
1999 softc->quirks |= SA_QUIRK_2FM;
2000 break;
2001 default:
2002 break;
2003 }
2004 }
2005
2006 /*
2007 * Now validate that some info we got makes sense.
2008 */
2009 if ((softc->max_blk < softc->media_blksize) ||
2010 (softc->min_blk > softc->media_blksize &&
2011 softc->media_blksize)) {
2012 xpt_print_path(ccb->ccb_h.path);
2013 printf("BLOCK LIMITS (%d..%d) could not match current "
2014 "block settings (%d)- adjusting\n", softc->min_blk,
2015 softc->max_blk, softc->media_blksize);
2016 softc->max_blk = softc->min_blk =
2017 softc->media_blksize;
2018 }
2019
2020 /*
2021 * Now put ourselves into the right frame of mind based
2022 * upon quirks...
2023 */
2024tryagain:
2025 /*
2026 * If we want to be in FIXED mode and our current blocksize
2027 * is not equal to our last blocksize (if nonzero), try and
2028 * set ourselves to this last blocksize (as the 'preferred'
2029 * block size). The initial quirkmatch at registry sets the
2030 * initial 'last' blocksize. If, for whatever reason, this
2031 * 'last' blocksize is zero, set the blocksize to 512,
2032 * or min_blk if that's larger.
2033 */
2034 if ((softc->quirks & SA_QUIRK_FIXED) &&
2035 (softc->media_blksize != softc->last_media_blksize)) {
2036 softc->media_blksize = softc->last_media_blksize;
2037 if (softc->media_blksize == 0) {
2038 softc->media_blksize = 512;
2039 if (softc->media_blksize < softc->min_blk) {
2040 softc->media_blksize = softc->min_blk;
2041 }
2042 }
2043 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2044 softc->media_blksize, 0, 0, SF_NO_PRINT);
2045 if (error) {
2046 xpt_print_path(ccb->ccb_h.path);
2047 printf("unable to set fixed blocksize to %d\n",
2048 softc->media_blksize);
2049 goto exit;
2050 }
2051 }
2052
2053 if ((softc->quirks & SA_QUIRK_VARIABLE) &&
2054 (softc->media_blksize != 0)) {
2055 softc->last_media_blksize = softc->media_blksize;
2056 softc->media_blksize = 0;
2057 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2058 0, 0, 0, SF_NO_PRINT);
2059 if (error) {
2060 /*
2061 * If this fails and we were guessing, just
2062 * assume that we got it wrong and go try
2063 * fixed block mode. Don't even check against
2064 * density code at this point.
2065 */
2066 if (guessing) {
2067 softc->quirks &= ~SA_QUIRK_VARIABLE;
2068 softc->quirks |= SA_QUIRK_FIXED;
2069 if (softc->last_media_blksize == 0)
2070 softc->last_media_blksize = 512;
2071 goto tryagain;
2072 }
2073 xpt_print_path(ccb->ccb_h.path);
2074 printf("unable to set variable blocksize\n");
2075 goto exit;
2076 }
2077 }
2078
2079 /*
2080 * Now that we have the current block size,
2081 * set up some parameters for sastart's usage.
2082 */
2083 if (softc->media_blksize) {
2084 softc->flags |= SA_FLAG_FIXED;
2085 if (powerof2(softc->media_blksize)) {
2086 softc->blk_shift =
2087 ffs(softc->media_blksize) - 1;
2088 softc->blk_mask = softc->media_blksize - 1;
2089 } else {
2090 softc->blk_mask = ~0;
2091 softc->blk_shift = 0;
2092 }
2093 } else {
2094 /*
2095 * The SCSI-3 spec allows 0 to mean "unspecified".
2096 * The SCSI-1 spec allows 0 to mean 'infinite'.
2097 *
2098 * Either works here.
2099 */
2100 if (softc->max_blk == 0) {
2101 softc->max_blk = ~0;
2102 }
2103 softc->blk_shift = 0;
2104 if (softc->blk_gran != 0) {
2105 softc->blk_mask = softc->blk_gran - 1;
2106 } else {
2107 softc->blk_mask = 0;
2108 }
2109 }
2110
2111 if (write_protect)
2112 softc->flags |= SA_FLAG_TAPE_WP;
2113
2114 if (comp_supported) {
2115 if (softc->saved_comp_algorithm == 0)
2116 softc->saved_comp_algorithm =
2117 softc->comp_algorithm;
2118 softc->flags |= SA_FLAG_COMP_SUPP;
2119 if (comp_enabled)
2120 softc->flags |= SA_FLAG_COMP_ENABLED;
2121 } else
2122 softc->flags |= SA_FLAG_COMP_UNSUPP;
2123
2124 if (softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) {
2125 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0,
2126 0, 0, SF_NO_PRINT);
2127 if (error == 0)
2128 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF;
2129 }
2130
2131
2132 if (error == 0) {
2133 softc->flags |= SA_FLAG_TAPE_MOUNTED;
2134 }
2135exit:
2136 if (rblim != NULL)
2137 free(rblim, M_TEMP);
2138
2139 if (error != 0) {
2140 softc->dsreg = MTIO_DSREG_NIL;
2141 } else {
2142 softc->fileno = softc->blkno = 0;
2143 softc->dsreg = MTIO_DSREG_REST;
2144 }
2145#ifdef SA_1FM_AT_EOD
2146 if ((softc->quirks & SA_QUIRK_2FM) == 0)
2147 softc->quirks |= SA_QUIRK_1FM;
2148#else
2149 if ((softc->quirks & SA_QUIRK_1FM) == 0)
2150 softc->quirks |= SA_QUIRK_2FM;
2151#endif
2152 } else
2153 xpt_release_ccb(ccb);
2154
2155 /*
2156 * If we return an error, we're not mounted any more,
2157 * so release any device reservation.
2158 */
2159 if (error != 0) {
2160 (void) sareservereleaseunit(periph, FALSE);
2161 }
2162 return (error);
2163}
2164
2165static int
2166sacheckeod(struct cam_periph *periph)
2167{
2168 int error;
2169 int markswanted;
2170 struct sa_softc *softc;
2171
2172 softc = (struct sa_softc *)periph->softc;
2173 markswanted = 0;
2174
2175 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) {
2176 markswanted++;
2177 if (softc->quirks & SA_QUIRK_2FM)
2178 markswanted++;
2179 }
2180
2181 if (softc->filemarks < markswanted) {
2182 markswanted -= softc->filemarks;
2183 error = sawritefilemarks(periph, markswanted, FALSE);
2184 } else {
2185 error = 0;
2186 }
2187 return (error);
2188}
2189
2190static int
2191saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs)
2192{
2193 static const char *toobig =
2194 "%d-byte tape record bigger than suplied buffer\n";
2195 struct cam_periph *periph;
2196 struct sa_softc *softc;
2197 struct ccb_scsiio *csio;
2198 struct scsi_sense_data *sense;
2199 u_int32_t resid = 0;
2200 int32_t info = 0;
2201 int error_code, sense_key, asc, ascq;
2202 int error, defer_action;
2203
2204 periph = xpt_path_periph(ccb->ccb_h.path);
2205 softc = (struct sa_softc *)periph->softc;
2206 csio = &ccb->csio;
2207 sense = &csio->sense_data;
2208 scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq);
2209 error = 0;
2210
2211 /*
2212 * Calculate/latch up, any residuals...
2213 */
2214 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR) {
2215 if ((sense->error_code & SSD_ERRCODE_VALID) != 0) {
2216 info = (int32_t) scsi_4btoul(sense->info);
2217 resid = info;
2218 if ((softc->flags & SA_FLAG_FIXED) != 0)
2219 resid *= softc->media_blksize;
2220 } else {
2221 resid = csio->dxfer_len;
2222 info = resid;
2223 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2224 if (softc->media_blksize)
2225 info /= softc->media_blksize;
2226 }
2227 }
2228 if (csio->ccb_h.ccb_type == SA_CCB_BUFFER_IO) {
2229 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense,
2230 sizeof (struct scsi_sense_data));
2231 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb,
2232 (int) csio->cdb_len);
2233 softc->last_io_resid = resid;
2234 } else {
2235 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense,
2236 sizeof (struct scsi_sense_data));
2237 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb,
2238 (int) csio->cdb_len);
2239 softc->last_ctl_resid = resid;
2240 }
2241 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("Key 0x%x ASC/ASCQ
2242 0x%x 0x%x flags 0x%x resid %d dxfer_len %d\n", sense_key,
2243 asc, ascq, sense->flags & ~SSD_KEY_RESERVED, resid,
2244 csio->dxfer_len));
2245 } else {
2246 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("Cam Status 0x%x\n",
2247 csio->ccb_h.status & CAM_STATUS_MASK));
2248 }
2249
2250 /*
2251 * If it's neither a SCSI Check Condition Error nor a non-read/write
2252 * command, let the common code deal with it the error setting.
2253 */
2254 if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_SCSI_STATUS_ERROR ||
2255 (csio->ccb_h.ccb_type == SA_CCB_WAITING)) {
2256 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2257 }
2258
2259 /*
2260 * Calculate whether we'll defer action.
2261 */
2262
2263 if (resid > 0 && resid < csio->dxfer_len &&
2264 (softc->flags & SA_FLAG_FIXED) != 0) {
2265 defer_action = TRUE;
2266 } else {
2267 defer_action = FALSE;
2268 }
2269
2270 /*
2271 * Handle filemark, end of tape, mismatched record sizes....
2272 * From this point out, we're only handling read/write cases.
2273 * Handle writes && reads differently.
2274 */
2275
2276 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
2277 if (sense->flags & SSD_FILEMARK) {
2278 xpt_print_path(csio->ccb_h.path);
2279 printf("filemark detected on write?\n");
2280 if (softc->fileno != (daddr_t) -1) {
2281 softc->fileno++;
2282 softc->blkno = 0;
2283 }
2284 }
2285 if (sense->flags & SSD_EOM) {
2286 csio->resid = resid;
2287 if (defer_action) {
2288 error = -1;
2289 softc->flags |= SA_FLAG_EOM_PENDING;
2290 } else {
2291 error = ENOSPC;
2292 }
2293 }
2294 } else {
2295 if (sense_key == SSD_KEY_BLANK_CHECK) {
2296 csio->resid = resid;
2297 if (defer_action) {
2298 error = -1;
2299 softc->flags |= SA_FLAG_EOM_PENDING;
2300 } else {
2301 error = EIO;
2302 }
2303 }
2304 if (sense->flags & SSD_FILEMARK) {
2305 csio->resid = resid;
2306 if (defer_action) {
2307 error = -1;
2308 softc->flags |= SA_FLAG_EOF_PENDING;
2309 }
2310 /*
2311 * Unconditionally, if we detected a filemark on a read,
2312 * mark that we've run moved a file ahead.
2313 */
2314 if (softc->fileno != (daddr_t) -1) {
2315 softc->fileno++;
2316 softc->blkno = 0;
2317 }
2318 }
2319 }
2320 /*
2321 * Incorrect Length usually applies to read, but can apply to writes.
2322 */
2323 if (error == 0 && (sense->flags & SSD_ILI)) {
2324 if (info < 0) {
2325 xpt_print_path(csio->ccb_h.path);
2326 printf(toobig, csio->dxfer_len - info);
2327 csio->resid = csio->dxfer_len;
2328 error = EIO;
2329 } else {
2330 csio->resid = resid;
2331 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2332 if (defer_action)
2333 softc->flags |= SA_FLAG_EIO_PENDING;
2334 else
2335 error = EIO;
2336 }
2337 /*
2338 * Bump the block number if we hadn't seen a filemark.
2339 * Do this independent of errors (we've moved anyway).
2340 */
2341 if ((sense->flags & SSD_FILEMARK) == 0) {
2342 if (softc->blkno != (daddr_t) -1) {
2343 softc->blkno++;
2344 }
2345 }
2346 }
2347 }
2348 if (error == 0)
2349 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2350
2351 if (error == -1)
2352 return (0);
2353 else
2354 return (error);
2355}
2356
2357static int
2358sagetparams(struct cam_periph *periph, sa_params params_to_get,
2359 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks,
2360 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed,
2361 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm,
2362 sa_comp_t *tcs)
2363{
2364 union ccb *ccb;
2365 void *mode_buffer;
2366 struct scsi_mode_header_6 *mode_hdr;
2367 struct scsi_mode_blk_desc *mode_blk;
2368 int mode_buffer_len;
2369 struct sa_softc *softc;
2370 u_int8_t cpage;
2371 int error;
2372 cam_status status;
2373
2374 softc = (struct sa_softc *)periph->softc;
2375 ccb = cam_periph_getccb(periph, 1);
2376 cpage = SA_DATA_COMPRESSION_PAGE;
2377
2378retry:
2379 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2380
2381 if (params_to_get & SA_PARAM_COMPRESSION) {
2382 if (softc->quirks & SA_QUIRK_NOCOMP) {
2383 *comp_supported = FALSE;
2384 params_to_get &= ~SA_PARAM_COMPRESSION;
2385 } else
2386 mode_buffer_len += sizeof (sa_comp_t);
2387 }
2388
2389 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK);
2390 bzero(mode_buffer, mode_buffer_len);
2391 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2392 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2393
2394 /* it is safe to retry this */
2395 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2396 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ?
2397 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len,
2398 SSD_FULL_SIZE, 5000);
2399
2400 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2401 &softc->device_stats);
2402 QFRLS(ccb);
2403
2404 status = ccb->ccb_h.status & CAM_STATUS_MASK;
2405
2406 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) {
2407 /*
2408 * Hmm. Let's see if we can try another page...
2409 * If we've already done that, give up on compression
2410 * for this device and remember this for the future
2411 * and attempt the request without asking for compression
2412 * info.
2413 */
2414 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2415 cpage = SA_DEVICE_CONFIGURATION_PAGE;
2416 goto retry;
2417 }
2418 softc->quirks |= SA_QUIRK_NOCOMP;
2419 free(mode_buffer, M_TEMP);
2420 goto retry;
2421 } else if (status == CAM_SCSI_STATUS_ERROR) {
2422 /* Tell the user about the fatal error. */
2423 scsi_sense_print(&ccb->csio);
2424 goto sagetparamsexit;
2425 }
2426
2427 /*
2428 * If the user only wants the compression information, and
2429 * the device doesn't send back the block descriptor, it's
2430 * no big deal. If the user wants more than just
2431 * compression, though, and the device doesn't pass back the
2432 * block descriptor, we need to send another mode sense to
2433 * get the block descriptor.
2434 */
2435 if ((mode_hdr->blk_desc_len == 0) &&
2436 (params_to_get & SA_PARAM_COMPRESSION) &&
2437 (params_to_get & ~(SA_PARAM_COMPRESSION))) {
2438
2439 /*
2440 * Decrease the mode buffer length by the size of
2441 * the compression page, to make sure the data
2442 * there doesn't get overwritten.
2443 */
2444 mode_buffer_len -= sizeof (sa_comp_t);
2445
2446 /*
2447 * Now move the compression page that we presumably
2448 * got back down the memory chunk a little bit so
2449 * it doesn't get spammed.
2450 */
2451 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t));
2452 bzero(&mode_hdr[0], sizeof (mode_hdr[0]));
2453
2454 /*
2455 * Now, we issue another mode sense and just ask
2456 * for the block descriptor, etc.
2457 */
2458
2459 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2460 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE,
2461 mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 5000);
2462
2463 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2464 &softc->device_stats);
2465 QFRLS(ccb);
2466
2467 if (error != 0)
2468 goto sagetparamsexit;
2469 }
2470
2471 if (params_to_get & SA_PARAM_BLOCKSIZE)
2472 *blocksize = scsi_3btoul(mode_blk->blklen);
2473
2474 if (params_to_get & SA_PARAM_NUMBLOCKS)
2475 *numblocks = scsi_3btoul(mode_blk->nblocks);
2476
2477 if (params_to_get & SA_PARAM_BUFF_MODE)
2478 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK;
2479
2480 if (params_to_get & SA_PARAM_DENSITY)
2481 *density = mode_blk->density;
2482
2483 if (params_to_get & SA_PARAM_WP)
2484 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE;
2485
2486 if (params_to_get & SA_PARAM_SPEED)
2487 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK;
2488
2489 if (params_to_get & SA_PARAM_COMPRESSION) {
2490 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1];
2491 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2492 struct scsi_data_compression_page *cp = &ntcs->dcomp;
2493 *comp_supported =
2494 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE;
2495 *comp_enabled =
2496 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE;
2497 *comp_algorithm = scsi_4btoul(cp->comp_algorithm);
2498 } else {
2499 struct scsi_dev_conf_page *cp = &ntcs->dconf;
2500 /*
2501 * We don't really know whether this device supports
2502 * Data Compression if the the algorithm field is
2503 * zero. Just say we do.
2504 */
2505 *comp_supported = TRUE;
2506 *comp_enabled =
2507 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE;
2508 *comp_algorithm = cp->sel_comp_alg;
2509 }
2510 if (tcs != NULL)
2511 bcopy(ntcs, tcs, sizeof (sa_comp_t));
2512 }
2513
2514 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2515 int idx;
2516 char *xyz = mode_buffer;
2517 xpt_print_path(periph->path);
2518 printf("Mode Sense Data=");
2519 for (idx = 0; idx < mode_buffer_len; idx++)
2520 printf(" 0x%02x", xyz[idx] & 0xff);
2521 printf("\n");
2522 }
2523
2524sagetparamsexit:
2525
2526 xpt_release_ccb(ccb);
2527 free(mode_buffer, M_TEMP);
2528 return (error);
2529}
2530
2531/*
2532 * The purpose of this function is to set one of four different parameters
2533 * for a tape drive:
2534 * - blocksize
2535 * - density
2536 * - compression / compression algorithm
2537 * - buffering mode
2538 *
2539 * The assumption is that this will be called from saioctl(), and therefore
2540 * from a process context. Thus the waiting malloc calls below. If that
2541 * assumption ever changes, the malloc calls should be changed to be
2542 * NOWAIT mallocs.
2543 *
2544 * Any or all of the four parameters may be set when this function is
2545 * called. It should handle setting more than one parameter at once.
2546 */
2547static int
2548sasetparams(struct cam_periph *periph, sa_params params_to_set,
2549 u_int32_t blocksize, u_int8_t density, u_int32_t calg,
2550 u_int32_t sense_flags)
2551{
2552 struct sa_softc *softc;
2553 u_int32_t current_blocksize;
2554 u_int32_t current_calg;
2555 u_int8_t current_density;
2556 u_int8_t current_speed;
2557 int comp_enabled, comp_supported;
2558 void *mode_buffer;
2559 int mode_buffer_len;
2560 struct scsi_mode_header_6 *mode_hdr;
2561 struct scsi_mode_blk_desc *mode_blk;
2562 sa_comp_t *ccomp, *cpage;
2563 int buff_mode;
2564 union ccb *ccb = NULL;
2565 int error;
2566
2567 softc = (struct sa_softc *)periph->softc;
2568
2569 ccomp = malloc(sizeof (sa_comp_t), M_TEMP, M_WAITOK);
2570
2571 /*
2572 * Since it doesn't make sense to set the number of blocks, or
2573 * write protection, we won't try to get the current value. We
2574 * always want to get the blocksize, so we can set it back to the
2575 * proper value.
2576 */
2577 error = sagetparams(periph,
2578 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED,
2579 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL,
2580 ¤t_speed, &comp_supported, &comp_enabled,
2581 ¤t_calg, ccomp);
2582
2583 if (error != 0) {
2584 free(ccomp, M_TEMP);
2585 return (error);
2586 }
2587
2588 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2589 if (params_to_set & SA_PARAM_COMPRESSION)
2590 mode_buffer_len += sizeof (sa_comp_t);
2591
2592 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK);
2593 bzero(mode_buffer, mode_buffer_len);
2594
2595 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2596 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2597
2598 ccb = cam_periph_getccb(periph, 1);
2599
2600retry:
2601
2602 if (params_to_set & SA_PARAM_COMPRESSION) {
2603 if (mode_blk) {
2604 cpage = (sa_comp_t *)&mode_blk[1];
2605 } else {
2606 cpage = (sa_comp_t *)&mode_hdr[1];
2607 }
2608 bcopy(ccomp, cpage, sizeof (sa_comp_t));
2609 cpage->hdr.pagecode &= ~0x80;
2610 } else
2611 cpage = NULL;
2612
2613 /*
2614 * If the caller wants us to set the blocksize, use the one they
2615 * pass in. Otherwise, use the blocksize we got back from the
2616 * mode select above.
2617 */
2618 if (mode_blk) {
2619 if (params_to_set & SA_PARAM_BLOCKSIZE)
2620 scsi_ulto3b(blocksize, mode_blk->blklen);
2621 else
2622 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2623
2624 /*
2625 * Set density if requested, else preserve old density.
2626 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2627 * devices, else density we've latched up in our softc.
2628 */
2629 if (params_to_set & SA_PARAM_DENSITY) {
2630 mode_blk->density = density;
2631 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2632 mode_blk->density = SCSI_SAME_DENSITY;
2633 } else {
2634 mode_blk->density = softc->media_density;
2635 }
2636 }
2637
2638 /*
2639 * For mode selects, these two fields must be zero.
2640 */
2641 mode_hdr->data_length = 0;
2642 mode_hdr->medium_type = 0;
2643
2644 /* set the speed to the current value */
2645 mode_hdr->dev_spec = current_speed;
2646
2647 /* set single-initiator buffering mode */
2648 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
2649
2650 if (mode_blk)
2651 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc);
2652 else
2653 mode_hdr->blk_desc_len = 0;
2654
2655 /*
2656 * First, if the user wants us to set the compression algorithm or
2657 * just turn compression on, check to make sure that this drive
2658 * supports compression.
2659 */
2660 if (params_to_set & SA_PARAM_COMPRESSION) {
2661 /*
2662 * If the compression algorithm is 0, disable compression.
2663 * If the compression algorithm is non-zero, enable
2664 * compression and set the compression type to the
2665 * specified compression algorithm, unless the algorithm is
2666 * MT_COMP_ENABLE. In that case, we look at the
2667 * compression algorithm that is currently set and if it is
2668 * non-zero, we leave it as-is. If it is zero, and we have
2669 * saved a compression algorithm from a time when
2670 * compression was enabled before, set the compression to
2671 * the saved value.
2672 */
2673 switch (ccomp->hdr.pagecode & ~0x80) {
2674 case SA_DATA_COMPRESSION_PAGE:
2675 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) {
2676 struct scsi_data_compression_page *dcp = &cpage->dcomp;
2677 if (calg == 0) {
2678 /*
2679 * Disable compression, but leave the
2680 * decompression and the capability bit
2681 * alone.
2682 */
2683 dcp->dce_and_dcc = SA_DCP_DCC;
2684 dcp->dde_and_red |= SA_DCP_DDE;
2685 break;
2686 }
2687 /* enable compression && decompression */
2688 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC;
2689 dcp->dde_and_red |= SA_DCP_DDE;
2690 /*
2691 * If there, use compression algorithm from caller.
2692 * Otherwise, if there's a saved compression algorithm
2693 * and there is no current algorithm, use the saved
2694 * algorithm. Else parrot back what we got and hope
2695 * for the best.
2696 */
2697 if (calg != MT_COMP_ENABLE) {
2698 scsi_ulto4b(calg, dcp->comp_algorithm);
2699 scsi_ulto4b(calg, dcp->decomp_algorithm);
2700 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 &&
2701 softc->saved_comp_algorithm != 0) {
2702 scsi_ulto4b(softc->saved_comp_algorithm,
2703 dcp->comp_algorithm);
2704 scsi_ulto4b(softc->saved_comp_algorithm,
2705 dcp->decomp_algorithm);
2706 }
2707 break;
2708 }
2709 case SA_DEVICE_CONFIGURATION_PAGE:
2710 {
2711 struct scsi_dev_conf_page *dcp = &cpage->dconf;
2712 if (calg == 0) {
2713 dcp->sel_comp_alg = SA_COMP_NONE;
2714 break;
2715 }
2716 if (calg != MT_COMP_ENABLE) {
2717 dcp->sel_comp_alg = calg;
2718 } else if (dcp->sel_comp_alg == SA_COMP_NONE &&
2719 softc->saved_comp_algorithm != 0) {
2720 dcp->sel_comp_alg = softc->saved_comp_algorithm;
2721 }
2722 break;
2723 }
2724 default:
2725 /*
2726 * The drive doesn't seem to support compression,
2727 * so turn off the set compression bit.
2728 */
2729 params_to_set &= ~SA_PARAM_COMPRESSION;
2730 xpt_print_path(periph->path);
2731 printf("device does not seem to support compression\n");
2732
2733 /*
2734 * If that was the only thing the user wanted us to set,
2735 * clean up allocated resources and return with
2736 * 'operation not supported'.
2737 */
2738 if (params_to_set == SA_PARAM_NONE) {
2739 free(mode_buffer, M_TEMP);
2740 xpt_release_ccb(ccb);
2741 return (ENODEV);
2742 }
2743
2744 /*
2745 * That wasn't the only thing the user wanted us to set.
2746 * So, decrease the stated mode buffer length by the
2747 * size of the compression mode page.
2748 */
2749 mode_buffer_len -= sizeof(sa_comp_t);
2750 }
2751 }
2752
2753 /* It is safe to retry this operation */
2754 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
2755 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE,
2756 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 5000);
2757
2758 error = cam_periph_runccb(ccb, saerror, 0,
2759 sense_flags, &softc->device_stats);
2760 QFRLS(ccb);
2761
2762 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2763 int idx;
2764 char *xyz = mode_buffer;
2765 xpt_print_path(periph->path);
2766 printf("Err%d, Mode Select Data=", error);
2767 for (idx = 0; idx < mode_buffer_len; idx++)
2768 printf(" 0x%02x", xyz[idx] & 0xff);
2769 printf("\n");
2770 }
2771
2772
2773 if (error) {
2774 /*
2775 * If we can, try without setting density/blocksize.
2776 */
2777 if (mode_blk) {
2778 if ((params_to_set &
2779 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) {
2780 mode_blk = NULL;
2781 goto retry;
2782 }
2783 } else {
2784 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2785 cpage = (sa_comp_t *)&mode_blk[1];
2786 }
2787
2788 /*
2789 * If we were setting the blocksize, and that failed, we
2790 * want to set it to its original value. If we weren't
2791 * setting the blocksize, we don't want to change it.
2792 */
2793 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2794
2795 /*
2796 * Set density if requested, else preserve old density.
2797 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2798 * devices, else density we've latched up in our softc.
2799 */
2800 if (params_to_set & SA_PARAM_DENSITY) {
2801 mode_blk->density = current_density;
2802 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2803 mode_blk->density = SCSI_SAME_DENSITY;
2804 } else {
2805 mode_blk->density = softc->media_density;
2806 }
2807
2808 if (params_to_set & SA_PARAM_COMPRESSION)
2809 bcopy(ccomp, cpage, sizeof (sa_comp_t));
2810
2811 /*
2812 * The retry count is the only CCB field that might have been
2813 * changed that we care about, so reset it back to 1.
2814 */
2815 ccb->ccb_h.retry_count = 1;
2816 cam_periph_runccb(ccb, saerror, 0, sense_flags,
2817 &softc->device_stats);
2818 QFRLS(ccb);
2819 }
2820
2821 xpt_release_ccb(ccb);
2822
2823 if (ccomp != NULL)
2824 free(ccomp, M_TEMP);
2825
2826 if (params_to_set & SA_PARAM_COMPRESSION) {
2827 if (error) {
2828 softc->flags &= ~SA_FLAG_COMP_ENABLED;
2829 /*
2830 * Even if we get an error setting compression,
2831 * do not say that we don't support it. We could
2832 * have been wrong, or it may be media specific.
2833 * softc->flags &= ~SA_FLAG_COMP_SUPP;
2834 */
2835 softc->saved_comp_algorithm = softc->comp_algorithm;
2836 softc->comp_algorithm = 0;
2837 } else {
2838 softc->flags |= SA_FLAG_COMP_ENABLED;
2839 softc->comp_algorithm = calg;
2840 }
2841 }
2842
2843 free(mode_buffer, M_TEMP);
2844 return (error);
2845}
2846
2847static void
2848saprevent(struct cam_periph *periph, int action)
2849{
2850 struct sa_softc *softc;
2851 union ccb *ccb;
2852 int error, sf;
2853
2854 softc = (struct sa_softc *)periph->softc;
2855
2856 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0)
2857 return;
2858 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
2859 return;
2860
2861 /*
2862 * We can be quiet about illegal requests.
2863 */
2864 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2865 sf = 0;
2866 } else
2867 sf = SF_QUIET_IR;
2868
2869 ccb = cam_periph_getccb(periph, 1);
2870
2871 /* It is safe to retry this operation */
2872 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
2873 SSD_FULL_SIZE, 100000);
2874
2875 error = cam_periph_runccb(ccb, saerror, 0, sf, &softc->device_stats);
2876 QFRLS(ccb);
2877 if (error == 0) {
2878 if (action == PR_ALLOW)
2879 softc->flags &= ~SA_FLAG_TAPE_LOCKED;
2880 else
2881 softc->flags |= SA_FLAG_TAPE_LOCKED;
2882 }
2883
2884 xpt_release_ccb(ccb);
2885}
2886
2887static int
2888sarewind(struct cam_periph *periph)
2889{
2890 union ccb *ccb;
2891 struct sa_softc *softc;
2892 int error;
2893
2894 softc = (struct sa_softc *)periph->softc;
2895
2896 ccb = cam_periph_getccb(periph, 1);
2897
2898 /* It is safe to retry this operation */
2899 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2900 SSD_FULL_SIZE, REWIND_TIMEOUT);
2901
2902 softc->dsreg = MTIO_DSREG_REW;
2903 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
2904 softc->dsreg = MTIO_DSREG_REST;
2905
2906 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2907 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
2908
2909 xpt_release_ccb(ccb);
2910 if (error == 0)
2911 softc->fileno = softc->blkno = (daddr_t) 0;
2912 else
2913 softc->fileno = softc->blkno = (daddr_t) -1;
2914 return (error);
2915}
2916
2917static int
2918saspace(struct cam_periph *periph, int count, scsi_space_code code)
2919{
2920 union ccb *ccb;
2921 struct sa_softc *softc;
2922 int error;
2923
2924 softc = (struct sa_softc *)periph->softc;
2925
2926 ccb = cam_periph_getccb(periph, 1);
2927
2928 /* This cannot be retried */
2929
2930 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count,
2931 SSD_FULL_SIZE, SPACE_TIMEOUT);
2932
2933 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD;
2934 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
2935 softc->dsreg = MTIO_DSREG_REST;
2936
2937 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2938 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
2939
2940 xpt_release_ccb(ccb);
2941
2942 /*
2943 * If a spacing operation has failed, we need to invalidate
2944 * this mount.
2945 *
2946 * If the spacing operation was setmarks or to end of recorded data,
2947 * we no longer know our relative position.
2948 *
2949 * We are not managing residuals here (really).
2950 */
2951 if (error) {
2952 softc->fileno = softc->blkno = (daddr_t) -1;
2953 } else if (code == SS_SETMARKS || code == SS_EOD) {
2954 softc->fileno = softc->blkno = (daddr_t) -1;
2955 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) {
2956 softc->fileno += count;
2957 softc->blkno = 0;
2958 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) {
2959 softc->blkno += count;
2960 }
2961 return (error);
2962}
2963
2964static int
2965sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks)
2966{
2967 union ccb *ccb;
2968 struct sa_softc *softc;
2969 int error;
2970
2971 softc = (struct sa_softc *)periph->softc;
2972
2973 ccb = cam_periph_getccb(periph, 1);
2974
2975 softc->dsreg = MTIO_DSREG_FMK;
2976 /* this *must* not be retried */
2977 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG,
2978 FALSE, setmarks, nmarks, SSD_FULL_SIZE, 60000);
2979 softc->dsreg = MTIO_DSREG_REST;
2980
2981
2982 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
2983
2984 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2985 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
2986
2987 /*
2988 * XXXX: Get back the actual number of filemarks written
2989 * XXXX: (there can be a residual).
2990 */
2991 if (error == 0 && nmarks) {
2992 struct sa_softc *softc = (struct sa_softc *)periph->softc;
2993 softc->filemarks += nmarks;
2994 }
2995 xpt_release_ccb(ccb);
2996
2997 /*
2998 * Update relative positions (if we're doing that).
2999 */
3000 if (error) {
3001 softc->fileno = softc->blkno = (daddr_t) -1;
3002 } else if (softc->fileno != (daddr_t) -1) {
3003 softc->fileno += nmarks;
3004 softc->blkno = 0;
3005 }
3006 return (error);
3007}
3008
3009static int
3010sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3011{
3012 struct scsi_tape_position_data loc;
3013 union ccb *ccb;
3014 struct sa_softc *softc = (struct sa_softc *)periph->softc;
3015 int error;
3016
3017 /*
3018 * We have to try and flush any buffered writes here if we were writing.
3019 *
3020 * The SCSI specification is vague enough about situations like
3021 * different sized blocks in a tape drive buffer as to make one
3022 * wary about trying to figure out the actual block location value
3023 * if data is in the tape drive buffer.
3024 */
3025 ccb = cam_periph_getccb(periph, 1);
3026
3027 if (softc->flags & SA_FLAG_TAPE_WRITTEN) {
3028 error = sawritefilemarks(periph, 0, 0);
3029 if (error && error != EACCES)
3030 return (error);
3031 }
3032
3033 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3034 hard, &loc, SSD_FULL_SIZE, 5000);
3035 softc->dsreg = MTIO_DSREG_RBSY;
3036 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3037 softc->dsreg = MTIO_DSREG_REST;
3038 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3039 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3040
3041 if (error == 0) {
3042 if (loc.flags & SA_RPOS_UNCERTAIN) {
3043 error = EINVAL; /* nothing is certain */
3044 } else {
3045#if 0
3046 u_int32_t firstblk, lastblk, nbufblk, nbufbyte;
3047
3048 firstblk = scsi_4btoul(loc.firstblk);
3049 lastblk = scsi_4btoul(loc.lastblk);
3050 nbufblk = scsi_4btoul(loc.nbufblk);
3051 nbufbyte = scsi_4btoul(loc.nbufbyte);
3052 if (lastblk || nbufblk || nbufbyte) {
3053 xpt_print_path(periph->path);
3054 printf("rdpos firstblk 0x%x lastblk 0x%x bufblk"
3055 " 0x%x bufbyte 0x%x\n", firstblk, lastblk,
3056 nbufblk, nbufbyte);
3057 }
3058 *blkptr = firstblk;
3059#else
3060 *blkptr = scsi_4btoul(loc.firstblk);
3061#endif
3062 }
3063 }
3064
3065 xpt_release_ccb(ccb);
3066 return (error);
3067}
3068
3069static int
3070sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3071{
3072 union ccb *ccb;
3073 struct sa_softc *softc;
3074 int error;
3075
3076 /*
3077 * We used to try and flush any buffered writes here.
3078 * Now we push this onto user applications to either
3079 * flush the pending writes themselves (via a zero count
3080 * WRITE FILEMARKS command) or they can trust their tape
3081 * drive to do this correctly for them.
3082 */
3083
3084 softc = (struct sa_softc *)periph->softc;
3085 ccb = cam_periph_getccb(periph, 1);
3086
3087
3088 scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3089 hard, *blkptr, SSD_FULL_SIZE, 60 * 60 * 1000);
3090
3091 softc->dsreg = MTIO_DSREG_POS;
3092 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3093 softc->dsreg = MTIO_DSREG_REST;
3094 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3095 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3096 xpt_release_ccb(ccb);
3097 /*
3098 * Note relative file && block number position as now unknown.
3099 */
3100 softc->fileno = softc->blkno = (daddr_t) -1;
3101 return (error);
3102}
3103
3104static int
3105saretension(struct cam_periph *periph)
3106{
3107 union ccb *ccb;
3108 struct sa_softc *softc;
3109 int error;
3110
3111 softc = (struct sa_softc *)periph->softc;
3112
3113 ccb = cam_periph_getccb(periph, 1);
3114
3115 /* It is safe to retry this operation */
3116 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3117 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT);
3118
3119 softc->dsreg = MTIO_DSREG_TEN;
3120 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3121 softc->dsreg = MTIO_DSREG_REST;
3122
3123 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3124 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3125 xpt_release_ccb(ccb);
3126 if (error == 0)
3127 softc->fileno = softc->blkno = (daddr_t) 0;
3128 else
3129 softc->fileno = softc->blkno = (daddr_t) -1;
3130 return (error);
3131}
3132
3133static int
3134sareservereleaseunit(struct cam_periph *periph, int reserve)
3135{
3136 union ccb *ccb;
3137 struct sa_softc *softc;
3138 int error;
3139
3140 softc = (struct sa_softc *)periph->softc;
3141 ccb = cam_periph_getccb(periph, 1);
3142
3143 /* It is safe to retry this operation */
3144 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
3145 FALSE, 0, SSD_FULL_SIZE, 5000, reserve);
3146 softc->dsreg = MTIO_DSREG_RBSY;
3147 error = cam_periph_runccb(ccb, saerror, 0,
3148 SF_RETRY_UA | SF_NO_PRINT, &softc->device_stats);
3149 softc->dsreg = MTIO_DSREG_REST;
3150 QFRLS(ccb);
3151 xpt_release_ccb(ccb);
3152
3153 /*
3154 * If the error was Illegal Request, then the device doesn't support
3155 * RESERVE/RELEASE. This is not an error.
3156 */
3157 if (error == EINVAL) {
3158 error = 0;
3159 }
3160
3161 return (error);
3162}
3163
3164static int
3165saloadunload(struct cam_periph *periph, int load)
3166{
3167 union ccb *ccb;
3168 struct sa_softc *softc;
3169 int error;
3170
3171 softc = (struct sa_softc *)periph->softc;
3172
3173 ccb = cam_periph_getccb(periph, 1);
3174
3175 /* It is safe to retry this operation */
3176 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3177 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT);
3178
3179 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL;
3180 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3181 softc->dsreg = MTIO_DSREG_REST;
3182 QFRLS(ccb);
3183 xpt_release_ccb(ccb);
3184
3185 if (error || load == 0)
3186 softc->fileno = softc->blkno = (daddr_t) -1;
3187 else if (error == 0)
3188 softc->fileno = softc->blkno = (daddr_t) 0;
3189 return (error);
3190}
3191
3192static int
3193saerase(struct cam_periph *periph, int longerase)
3194{
3195
3196 union ccb *ccb;
3197 struct sa_softc *softc;
3198 int error;
3199
3200 softc = (struct sa_softc *)periph->softc;
3201
3202 ccb = cam_periph_getccb(periph, 1);
3203
3204 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase,
3205 SSD_FULL_SIZE, ERASE_TIMEOUT);
3206
3207 softc->dsreg = MTIO_DSREG_ZER;
3208 error = cam_periph_runccb(ccb, saerror, 0, 0, &softc->device_stats);
3209 softc->dsreg = MTIO_DSREG_REST;
3210
3211 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3212 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3213 xpt_release_ccb(ccb);
3214 return (error);
3215}
3216
3217#endif /* _KERNEL */
3218
3219/*
3220 * Read tape block limits command.
3221 */
3222void
3223scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries,
3224 void (*cbfcnp)(struct cam_periph *, union ccb *),
3225 u_int8_t tag_action,
3226 struct scsi_read_block_limits_data *rlimit_buf,
3227 u_int8_t sense_len, u_int32_t timeout)
3228{
3229 struct scsi_read_block_limits *scsi_cmd;
3230
3231 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3232 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len,
3233 sizeof(*scsi_cmd), timeout);
3234
3235 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes;
3236 bzero(scsi_cmd, sizeof(*scsi_cmd));
3237 scsi_cmd->opcode = READ_BLOCK_LIMITS;
3238}
3239
3240void
3241scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
3242 void (*cbfcnp)(struct cam_periph *, union ccb *),
3243 u_int8_t tag_action, int readop, int sli,
3244 int fixed, u_int32_t length, u_int8_t *data_ptr,
3245 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout)
3246{
3247 struct scsi_sa_rw *scsi_cmd;
3248
3249 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes;
3250 scsi_cmd->opcode = readop ? SA_READ : SA_WRITE;
3251 scsi_cmd->sli_fixed = 0;
3252 if (sli && readop)
3253 scsi_cmd->sli_fixed |= SAR_SLI;
3254 if (fixed)
3255 scsi_cmd->sli_fixed |= SARW_FIXED;
3256 scsi_ulto3b(length, scsi_cmd->length);
3257 scsi_cmd->control = 0;
3258
3259 cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT,
3260 tag_action, data_ptr, dxfer_len, sense_len,
3261 sizeof(*scsi_cmd), timeout);
3262}
3263
3264void
3265scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
3266 void (*cbfcnp)(struct cam_periph *, union ccb *),
3267 u_int8_t tag_action, int immediate, int eot,
3268 int reten, int load, u_int8_t sense_len,
3269 u_int32_t timeout)
3270{
3271 struct scsi_load_unload *scsi_cmd;
3272
3273 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes;
3274 bzero(scsi_cmd, sizeof(*scsi_cmd));
3275 scsi_cmd->opcode = LOAD_UNLOAD;
3276 if (immediate)
3277 scsi_cmd->immediate = SLU_IMMED;
3278 if (eot)
3279 scsi_cmd->eot_reten_load |= SLU_EOT;
3280 if (reten)
3281 scsi_cmd->eot_reten_load |= SLU_RETEN;
3282 if (load)
3283 scsi_cmd->eot_reten_load |= SLU_LOAD;
3284
3285 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
3286 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout);
3287}
3288
3289void
3290scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
3291 void (*cbfcnp)(struct cam_periph *, union ccb *),
3292 u_int8_t tag_action, int immediate, u_int8_t sense_len,
3293 u_int32_t timeout)
3294{
3295 struct scsi_rewind *scsi_cmd;
3296
3297 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes;
3298 bzero(scsi_cmd, sizeof(*scsi_cmd));
3299 scsi_cmd->opcode = REWIND;
3300 if (immediate)
3301 scsi_cmd->immediate = SREW_IMMED;
3302
3303 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3304 0, sense_len, sizeof(*scsi_cmd), timeout);
3305}
3306
3307void
3308scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
3309 void (*cbfcnp)(struct cam_periph *, union ccb *),
3310 u_int8_t tag_action, scsi_space_code code,
3311 u_int32_t count, u_int8_t sense_len, u_int32_t timeout)
3312{
3313 struct scsi_space *scsi_cmd;
3314
3315 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes;
3316 scsi_cmd->opcode = SPACE;
3317 scsi_cmd->code = code;
3318 scsi_ulto3b(count, scsi_cmd->count);
3319 scsi_cmd->control = 0;
3320
3321 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3322 0, sense_len, sizeof(*scsi_cmd), timeout);
3323}
3324
3325void
3326scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
3327 void (*cbfcnp)(struct cam_periph *, union ccb *),
3328 u_int8_t tag_action, int immediate, int setmark,
3329 u_int32_t num_marks, u_int8_t sense_len,
3330 u_int32_t timeout)
3331{
3332 struct scsi_write_filemarks *scsi_cmd;
3333
3334 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes;
3335 bzero(scsi_cmd, sizeof(*scsi_cmd));
3336 scsi_cmd->opcode = WRITE_FILEMARKS;
3337 if (immediate)
3338 scsi_cmd->byte2 |= SWFMRK_IMMED;
3339 if (setmark)
3340 scsi_cmd->byte2 |= SWFMRK_WSMK;
3341
3342 scsi_ulto3b(num_marks, scsi_cmd->num_marks);
3343
3344 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3345 0, sense_len, sizeof(*scsi_cmd), timeout);
3346}
3347
3348/*
3349 * The reserve and release unit commands differ only by their opcodes.
3350 */
3351void
3352scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
3353 void (*cbfcnp)(struct cam_periph *, union ccb *),
3354 u_int8_t tag_action, int third_party,
3355 int third_party_id, u_int8_t sense_len,
3356 u_int32_t timeout, int reserve)
3357{
3358 struct scsi_reserve_release_unit *scsi_cmd;
3359
3360 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes;
3361 bzero(scsi_cmd, sizeof(*scsi_cmd));
3362
3363 if (reserve)
3364 scsi_cmd->opcode = RESERVE_UNIT;
3365 else
3366 scsi_cmd->opcode = RELEASE_UNIT;
3367
3368 if (third_party) {
3369 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY;
3370 scsi_cmd->lun_thirdparty |=
3371 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK);
3372 }
3373
3374 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3375 0, sense_len, sizeof(*scsi_cmd), timeout);
3376}
3377
3378void
3379scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
3380 void (*cbfcnp)(struct cam_periph *, union ccb *),
3381 u_int8_t tag_action, int immediate, int long_erase,
3382 u_int8_t sense_len, u_int32_t timeout)
3383{
3384 struct scsi_erase *scsi_cmd;
3385
3386 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes;
3387 bzero(scsi_cmd, sizeof(*scsi_cmd));
3388
3389 scsi_cmd->opcode = ERASE;
3390
3391 if (immediate)
3392 scsi_cmd->lun_imm_long |= SE_IMMED;
3393
3394 if (long_erase)
3395 scsi_cmd->lun_imm_long |= SE_LONG;
3396
3397 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3398 0, sense_len, sizeof(*scsi_cmd), timeout);
3399}
3400
3401/*
3402 * Read Tape Position command.
3403 */
3404void
3405scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries,
3406 void (*cbfcnp)(struct cam_periph *, union ccb *),
3407 u_int8_t tag_action, int hardsoft,
3408 struct scsi_tape_position_data *sbp,
3409 u_int8_t sense_len, u_int32_t timeout)
3410{
3411 struct scsi_tape_read_position *scmd;
3412
3413 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3414 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout);
3415 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
3416 bzero(scmd, sizeof(*scmd));
3417 scmd->opcode = READ_POSITION;
3418 scmd->byte1 = hardsoft;
3419}
3420
3421/*
3422 * Set Tape Position command.
3423 */
3424void
3425scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries,
3426 void (*cbfcnp)(struct cam_periph *, union ccb *),
3427 u_int8_t tag_action, int hardsoft, u_int32_t blkno,
3428 u_int8_t sense_len, u_int32_t timeout)
3429{
3430 struct scsi_tape_locate *scmd;
3431
3432 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
3433 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout);
3434 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
3435 bzero(scmd, sizeof(*scmd));
3436 scmd->opcode = LOCATE;
3437 if (hardsoft)
3438 scmd->byte1 |= SA_SPOS_BT;
3439 scsi_ulto4b(blkno, scmd->blkaddr);
3440}
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