xref: /freebsd/sys/cam/scsi/scsi_da.c (revision 94086cea279d930eb2fbe7d680585abde7e9c095)
1 /*-
2  * Implementation of SCSI Direct Access Peripheral driver for CAM.
3  *
4  * Copyright (c) 1997 Justin T. Gibbs.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions, and the following disclaimer,
12  *    without modification, immediately at the beginning of the file.
13  * 2. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #include <sys/param.h>
33 
34 #ifdef _KERNEL
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/bio.h>
38 #include <sys/sysctl.h>
39 #include <sys/taskqueue.h>
40 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/conf.h>
43 #include <sys/devicestat.h>
44 #include <sys/eventhandler.h>
45 #include <sys/malloc.h>
46 #include <sys/cons.h>
47 #include <sys/endian.h>
48 #include <sys/proc.h>
49 #include <geom/geom.h>
50 #include <geom/geom_disk.h>
51 #endif /* _KERNEL */
52 
53 #ifndef _KERNEL
54 #include <stdio.h>
55 #include <string.h>
56 #endif /* _KERNEL */
57 
58 #include <cam/cam.h>
59 #include <cam/cam_ccb.h>
60 #include <cam/cam_periph.h>
61 #include <cam/cam_xpt_periph.h>
62 #include <cam/cam_sim.h>
63 
64 #include <cam/scsi/scsi_message.h>
65 
66 #ifndef _KERNEL
67 #include <cam/scsi/scsi_da.h>
68 #endif /* !_KERNEL */
69 
70 #ifdef _KERNEL
71 typedef enum {
72 	DA_STATE_PROBE_RC,
73 	DA_STATE_PROBE_RC16,
74 	DA_STATE_PROBE_LBP,
75 	DA_STATE_PROBE_BLK_LIMITS,
76 	DA_STATE_PROBE_BDC,
77 	DA_STATE_PROBE_ATA,
78 	DA_STATE_NORMAL
79 } da_state;
80 
81 typedef enum {
82 	DA_FLAG_PACK_INVALID	= 0x001,
83 	DA_FLAG_NEW_PACK	= 0x002,
84 	DA_FLAG_PACK_LOCKED	= 0x004,
85 	DA_FLAG_PACK_REMOVABLE	= 0x008,
86 	DA_FLAG_NEED_OTAG	= 0x020,
87 	DA_FLAG_WAS_OTAG	= 0x040,
88 	DA_FLAG_RETRY_UA	= 0x080,
89 	DA_FLAG_OPEN		= 0x100,
90 	DA_FLAG_SCTX_INIT	= 0x200,
91 	DA_FLAG_CAN_RC16	= 0x400,
92 	DA_FLAG_PROBED		= 0x800,
93 	DA_FLAG_DIRTY		= 0x1000,
94 	DA_FLAG_ANNOUNCED	= 0x2000
95 } da_flags;
96 
97 typedef enum {
98 	DA_Q_NONE		= 0x00,
99 	DA_Q_NO_SYNC_CACHE	= 0x01,
100 	DA_Q_NO_6_BYTE		= 0x02,
101 	DA_Q_NO_PREVENT		= 0x04,
102 	DA_Q_4K			= 0x08,
103 	DA_Q_NO_RC16		= 0x10,
104 	DA_Q_NO_UNMAP		= 0x20,
105 	DA_Q_RETRY_BUSY		= 0x40
106 } da_quirks;
107 
108 #define DA_Q_BIT_STRING		\
109 	"\020"			\
110 	"\001NO_SYNC_CACHE"	\
111 	"\002NO_6_BYTE"		\
112 	"\003NO_PREVENT"	\
113 	"\0044K"		\
114 	"\005NO_RC16"		\
115 	"\006NO_UNMAP"		\
116 	"\007RETRY_BUSY"
117 
118 typedef enum {
119 	DA_CCB_PROBE_RC		= 0x01,
120 	DA_CCB_PROBE_RC16	= 0x02,
121 	DA_CCB_PROBE_LBP	= 0x03,
122 	DA_CCB_PROBE_BLK_LIMITS	= 0x04,
123 	DA_CCB_PROBE_BDC	= 0x05,
124 	DA_CCB_PROBE_ATA	= 0x06,
125 	DA_CCB_BUFFER_IO	= 0x07,
126 	DA_CCB_DUMP		= 0x0A,
127 	DA_CCB_DELETE		= 0x0B,
128  	DA_CCB_TUR		= 0x0C,
129 	DA_CCB_TYPE_MASK	= 0x0F,
130 	DA_CCB_RETRY_UA		= 0x10
131 } da_ccb_state;
132 
133 /*
134  * Order here is important for method choice
135  *
136  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
137  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
138  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
139  * import taking 5mins.
140  *
141  */
142 typedef enum {
143 	DA_DELETE_NONE,
144 	DA_DELETE_DISABLE,
145 	DA_DELETE_ATA_TRIM,
146 	DA_DELETE_UNMAP,
147 	DA_DELETE_WS16,
148 	DA_DELETE_WS10,
149 	DA_DELETE_ZERO,
150 	DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
151 	DA_DELETE_MAX = DA_DELETE_ZERO
152 } da_delete_methods;
153 
154 typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
155 			      struct bio *bp);
156 static da_delete_func_t da_delete_trim;
157 static da_delete_func_t da_delete_unmap;
158 static da_delete_func_t da_delete_ws;
159 
160 static const void * da_delete_functions[] = {
161 	NULL,
162 	NULL,
163 	da_delete_trim,
164 	da_delete_unmap,
165 	da_delete_ws,
166 	da_delete_ws,
167 	da_delete_ws
168 };
169 
170 static const char *da_delete_method_names[] =
171     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
172 static const char *da_delete_method_desc[] =
173     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
174       "WRITE SAME(10) with UNMAP", "ZERO" };
175 
176 /* Offsets into our private area for storing information */
177 #define ccb_state	ppriv_field0
178 #define ccb_bp		ppriv_ptr1
179 
180 struct disk_params {
181 	u_int8_t  heads;
182 	u_int32_t cylinders;
183 	u_int8_t  secs_per_track;
184 	u_int32_t secsize;	/* Number of bytes/sector */
185 	u_int64_t sectors;	/* total number sectors */
186 	u_int     stripesize;
187 	u_int     stripeoffset;
188 };
189 
190 #define UNMAP_RANGE_MAX		0xffffffff
191 #define UNMAP_HEAD_SIZE		8
192 #define UNMAP_RANGE_SIZE	16
193 #define UNMAP_MAX_RANGES	2048 /* Protocol Max is 4095 */
194 #define UNMAP_BUF_SIZE		((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
195 				UNMAP_HEAD_SIZE)
196 
197 #define WS10_MAX_BLKS		0xffff
198 #define WS16_MAX_BLKS		0xffffffff
199 #define ATA_TRIM_MAX_RANGES	((UNMAP_BUF_SIZE / \
200 	(ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
201 
202 struct da_softc {
203 	struct	 bio_queue_head bio_queue;
204 	struct	 bio_queue_head delete_queue;
205 	struct	 bio_queue_head delete_run_queue;
206 	LIST_HEAD(, ccb_hdr) pending_ccbs;
207 	int	 tur;			/* TEST UNIT READY should be sent */
208 	int	 refcount;		/* Active xpt_action() calls */
209 	da_state state;
210 	da_flags flags;
211 	da_quirks quirks;
212 	int	 sort_io_queue;
213 	int	 minimum_cmd_size;
214 	int	 error_inject;
215 	int	 trim_max_ranges;
216 	int	 delete_running;
217 	int	 delete_available;	/* Delete methods possibly available */
218 	u_int	 maxio;
219 	uint32_t		unmap_max_ranges;
220 	uint32_t		unmap_max_lba; /* Max LBAs in UNMAP req */
221 	uint64_t		ws_max_blks;
222 	da_delete_methods	delete_method_pref;
223 	da_delete_methods	delete_method;
224 	da_delete_func_t	*delete_func;
225 	struct	 disk_params params;
226 	struct	 disk *disk;
227 	union	 ccb saved_ccb;
228 	struct task		sysctl_task;
229 	struct sysctl_ctx_list	sysctl_ctx;
230 	struct sysctl_oid	*sysctl_tree;
231 	struct callout		sendordered_c;
232 	uint64_t wwpn;
233 	uint8_t	 unmap_buf[UNMAP_BUF_SIZE];
234 	struct scsi_read_capacity_data_long rcaplong;
235 	struct callout		mediapoll_c;
236 };
237 
238 #define dadeleteflag(softc, delete_method, enable)			\
239 	if (enable) {							\
240 		softc->delete_available |= (1 << delete_method);	\
241 	} else {							\
242 		softc->delete_available &= ~(1 << delete_method);	\
243 	}
244 
245 struct da_quirk_entry {
246 	struct scsi_inquiry_pattern inq_pat;
247 	da_quirks quirks;
248 };
249 
250 static const char quantum[] = "QUANTUM";
251 static const char microp[] = "MICROP";
252 
253 static struct da_quirk_entry da_quirk_table[] =
254 {
255 	/* SPI, FC devices */
256 	{
257 		/*
258 		 * Fujitsu M2513A MO drives.
259 		 * Tested devices: M2513A2 firmware versions 1200 & 1300.
260 		 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
261 		 * Reported by: W.Scholten <whs@xs4all.nl>
262 		 */
263 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
264 		/*quirks*/ DA_Q_NO_SYNC_CACHE
265 	},
266 	{
267 		/* See above. */
268 		{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
269 		/*quirks*/ DA_Q_NO_SYNC_CACHE
270 	},
271 	{
272 		/*
273 		 * This particular Fujitsu drive doesn't like the
274 		 * synchronize cache command.
275 		 * Reported by: Tom Jackson <toj@gorilla.net>
276 		 */
277 		{T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
278 		/*quirks*/ DA_Q_NO_SYNC_CACHE
279 	},
280 	{
281 		/*
282 		 * This drive doesn't like the synchronize cache command
283 		 * either.  Reported by: Matthew Jacob <mjacob@feral.com>
284 		 * in NetBSD PR kern/6027, August 24, 1998.
285 		 */
286 		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
287 		/*quirks*/ DA_Q_NO_SYNC_CACHE
288 	},
289 	{
290 		/*
291 		 * This drive doesn't like the synchronize cache command
292 		 * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
293 		 * (PR 8882).
294 		 */
295 		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
296 		/*quirks*/ DA_Q_NO_SYNC_CACHE
297 	},
298 	{
299 		/*
300 		 * Doesn't like the synchronize cache command.
301 		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
302 		 */
303 		{T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
304 		/*quirks*/ DA_Q_NO_SYNC_CACHE
305 	},
306 	{
307 		/*
308 		 * Doesn't like the synchronize cache command.
309 		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
310 		 */
311 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
312 		/*quirks*/ DA_Q_NO_SYNC_CACHE
313 	},
314 	{
315 		/*
316 		 * Doesn't like the synchronize cache command.
317 		 */
318 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
319 		/*quirks*/ DA_Q_NO_SYNC_CACHE
320 	},
321 	{
322 		/*
323 		 * Doesn't like the synchronize cache command.
324 		 * Reported by: walter@pelissero.de
325 		 */
326 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
327 		/*quirks*/ DA_Q_NO_SYNC_CACHE
328 	},
329 	{
330 		/*
331 		 * Doesn't work correctly with 6 byte reads/writes.
332 		 * Returns illegal request, and points to byte 9 of the
333 		 * 6-byte CDB.
334 		 * Reported by:  Adam McDougall <bsdx@spawnet.com>
335 		 */
336 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
337 		/*quirks*/ DA_Q_NO_6_BYTE
338 	},
339 	{
340 		/* See above. */
341 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
342 		/*quirks*/ DA_Q_NO_6_BYTE
343 	},
344 	{
345 		/*
346 		 * Doesn't like the synchronize cache command.
347 		 * Reported by: walter@pelissero.de
348 		 */
349 		{T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
350 		/*quirks*/ DA_Q_NO_SYNC_CACHE
351 	},
352 	{
353 		/*
354 		 * The CISS RAID controllers do not support SYNC_CACHE
355 		 */
356 		{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
357 		/*quirks*/ DA_Q_NO_SYNC_CACHE
358 	},
359 	{
360 		/*
361 		 * The STEC SSDs sometimes hang on UNMAP.
362 		 */
363 		{T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
364 		/*quirks*/ DA_Q_NO_UNMAP
365 	},
366 	{
367 		/*
368 		 * VMware returns BUSY status when storage has transient
369 		 * connectivity problems, so better wait.
370 		 */
371 		{T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*"},
372 		/*quirks*/ DA_Q_RETRY_BUSY
373 	},
374 	/* USB mass storage devices supported by umass(4) */
375 	{
376 		/*
377 		 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
378 		 * PR: kern/51675
379 		 */
380 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
381 		/*quirks*/ DA_Q_NO_SYNC_CACHE
382 	},
383 	{
384 		/*
385 		 * Power Quotient Int. (PQI) USB flash key
386 		 * PR: kern/53067
387 		 */
388 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
389 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
390 	},
391  	{
392  		/*
393  		 * Creative Nomad MUVO mp3 player (USB)
394  		 * PR: kern/53094
395  		 */
396  		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
397  		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
398  	},
399 	{
400 		/*
401 		 * Jungsoft NEXDISK USB flash key
402 		 * PR: kern/54737
403 		 */
404 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
405 		/*quirks*/ DA_Q_NO_SYNC_CACHE
406 	},
407 	{
408 		/*
409 		 * FreeDik USB Mini Data Drive
410 		 * PR: kern/54786
411 		 */
412 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
413 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
414 	},
415 	{
416 		/*
417 		 * Sigmatel USB Flash MP3 Player
418 		 * PR: kern/57046
419 		 */
420 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
421 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
422 	},
423 	{
424 		/*
425 		 * Neuros USB Digital Audio Computer
426 		 * PR: kern/63645
427 		 */
428 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
429 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
430 	},
431 	{
432 		/*
433 		 * SEAGRAND NP-900 MP3 Player
434 		 * PR: kern/64563
435 		 */
436 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
437 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
438 	},
439 	{
440 		/*
441 		 * iRiver iFP MP3 player (with UMS Firmware)
442 		 * PR: kern/54881, i386/63941, kern/66124
443 		 */
444 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
445 		/*quirks*/ DA_Q_NO_SYNC_CACHE
446  	},
447 	{
448 		/*
449 		 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
450 		 * PR: kern/70158
451 		 */
452 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
453 		/*quirks*/ DA_Q_NO_SYNC_CACHE
454 	},
455 	{
456 		/*
457 		 * ZICPlay USB MP3 Player with FM
458 		 * PR: kern/75057
459 		 */
460 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
461 		/*quirks*/ DA_Q_NO_SYNC_CACHE
462 	},
463 	{
464 		/*
465 		 * TEAC USB floppy mechanisms
466 		 */
467 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
468 		/*quirks*/ DA_Q_NO_SYNC_CACHE
469 	},
470 	{
471 		/*
472 		 * Kingston DataTraveler II+ USB Pen-Drive.
473 		 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
474 		 */
475 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
476 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
477 	},
478 	{
479 		/*
480 		 * USB DISK Pro PMAP
481 		 * Reported by: jhs
482 		 * PR: usb/96381
483 		 */
484 		{T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
485 		/*quirks*/ DA_Q_NO_SYNC_CACHE
486 	},
487 	{
488 		/*
489 		 * Motorola E398 Mobile Phone (TransFlash memory card).
490 		 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
491 		 * PR: usb/89889
492 		 */
493 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
494 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
495 	},
496 	{
497 		/*
498 		 * Qware BeatZkey! Pro
499 		 * PR: usb/79164
500 		 */
501 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
502 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
503 	},
504 	{
505 		/*
506 		 * Time DPA20B 1GB MP3 Player
507 		 * PR: usb/81846
508 		 */
509 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
510 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
511 	},
512 	{
513 		/*
514 		 * Samsung USB key 128Mb
515 		 * PR: usb/90081
516 		 */
517 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
518 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
519 	},
520 	{
521 		/*
522 		 * Kingston DataTraveler 2.0 USB Flash memory.
523 		 * PR: usb/89196
524 		 */
525 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
526 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
527 	},
528 	{
529 		/*
530 		 * Creative MUVO Slim mp3 player (USB)
531 		 * PR: usb/86131
532 		 */
533 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
534 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
535 		},
536 	{
537 		/*
538 		 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
539 		 * PR: usb/80487
540 		 */
541 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
542 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
543 	},
544 	{
545 		/*
546 		 * SanDisk Micro Cruzer 128MB
547 		 * PR: usb/75970
548 		 */
549 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
550 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
551 	},
552 	{
553 		/*
554 		 * TOSHIBA TransMemory USB sticks
555 		 * PR: kern/94660
556 		 */
557 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
558 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
559 	},
560 	{
561 		/*
562 		 * PNY USB 3.0 Flash Drives
563 		*/
564 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
565 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
566 	},
567 	{
568 		/*
569 		 * PNY USB Flash keys
570 		 * PR: usb/75578, usb/72344, usb/65436
571 		 */
572 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
573 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
574 	},
575 	{
576 		/*
577 		 * Genesys 6-in-1 Card Reader
578 		 * PR: usb/94647
579 		 */
580 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
581 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
582 	},
583 	{
584 		/*
585 		 * Rekam Digital CAMERA
586 		 * PR: usb/98713
587 		 */
588 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
589 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
590 	},
591 	{
592 		/*
593 		 * iRiver H10 MP3 player
594 		 * PR: usb/102547
595 		 */
596 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
597 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
598 	},
599 	{
600 		/*
601 		 * iRiver U10 MP3 player
602 		 * PR: usb/92306
603 		 */
604 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
605 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
606 	},
607 	{
608 		/*
609 		 * X-Micro Flash Disk
610 		 * PR: usb/96901
611 		 */
612 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
613 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
614 	},
615 	{
616 		/*
617 		 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
618 		 * PR: usb/96546
619 		 */
620 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
621 		"1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
622 	},
623 	{
624 		/*
625 		 * Denver MP3 player
626 		 * PR: usb/107101
627 		 */
628 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
629 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
630 	},
631 	{
632 		/*
633 		 * Philips USB Key Audio KEY013
634 		 * PR: usb/68412
635 		 */
636 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
637 		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
638 	},
639 	{
640 		/*
641 		 * JNC MP3 Player
642 		 * PR: usb/94439
643 		 */
644 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
645 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
646 	},
647 	{
648 		/*
649 		 * SAMSUNG MP0402H
650 		 * PR: usb/108427
651 		 */
652 		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
653 		/*quirks*/ DA_Q_NO_SYNC_CACHE
654 	},
655 	{
656 		/*
657 		 * I/O Magic USB flash - Giga Bank
658 		 * PR: usb/108810
659 		 */
660 		{T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
661 		/*quirks*/ DA_Q_NO_SYNC_CACHE
662 	},
663 	{
664 		/*
665 		 * JoyFly 128mb USB Flash Drive
666 		 * PR: 96133
667 		 */
668 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
669 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
670 	},
671 	{
672 		/*
673 		 * ChipsBnk usb stick
674 		 * PR: 103702
675 		 */
676 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
677 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
678 	},
679 	{
680 		/*
681 		 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
682 		 * PR: 129858
683 		 */
684 		{T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
685 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
686 	},
687 	{
688 		/*
689 		 * Samsung YP-U3 mp3-player
690 		 * PR: 125398
691 		 */
692 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
693 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
694 	},
695 	{
696 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
697 		 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
698 	},
699 	{
700 		/*
701 		 * Sony Cyber-Shot DSC cameras
702 		 * PR: usb/137035
703 		 */
704 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
705 		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
706 	},
707 	{
708 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
709 		 "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
710 	},
711 	{
712 		/* At least several Transcent USB sticks lie on RC16. */
713 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
714 		 "*"}, /*quirks*/ DA_Q_NO_RC16
715 	},
716 	/* ATA/SATA devices over SAS/USB/... */
717 	{
718 		/* Hitachi Advanced Format (4k) drives */
719 		{ T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
720 		/*quirks*/DA_Q_4K
721 	},
722 	{
723 		/* Samsung Advanced Format (4k) drives */
724 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
725 		/*quirks*/DA_Q_4K
726 	},
727 	{
728 		/* Samsung Advanced Format (4k) drives */
729 		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
730 		/*quirks*/DA_Q_4K
731 	},
732 	{
733 		/* Samsung Advanced Format (4k) drives */
734 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
735 		/*quirks*/DA_Q_4K
736 	},
737 	{
738 		/* Samsung Advanced Format (4k) drives */
739 		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
740 		/*quirks*/DA_Q_4K
741 	},
742 	{
743 		/* Seagate Barracuda Green Advanced Format (4k) drives */
744 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
745 		/*quirks*/DA_Q_4K
746 	},
747 	{
748 		/* Seagate Barracuda Green Advanced Format (4k) drives */
749 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
750 		/*quirks*/DA_Q_4K
751 	},
752 	{
753 		/* Seagate Barracuda Green Advanced Format (4k) drives */
754 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
755 		/*quirks*/DA_Q_4K
756 	},
757 	{
758 		/* Seagate Barracuda Green Advanced Format (4k) drives */
759 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
760 		/*quirks*/DA_Q_4K
761 	},
762 	{
763 		/* Seagate Barracuda Green Advanced Format (4k) drives */
764 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
765 		/*quirks*/DA_Q_4K
766 	},
767 	{
768 		/* Seagate Barracuda Green Advanced Format (4k) drives */
769 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
770 		/*quirks*/DA_Q_4K
771 	},
772 	{
773 		/* Seagate Momentus Advanced Format (4k) drives */
774 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
775 		/*quirks*/DA_Q_4K
776 	},
777 	{
778 		/* Seagate Momentus Advanced Format (4k) drives */
779 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
780 		/*quirks*/DA_Q_4K
781 	},
782 	{
783 		/* Seagate Momentus Advanced Format (4k) drives */
784 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
785 		/*quirks*/DA_Q_4K
786 	},
787 	{
788 		/* Seagate Momentus Advanced Format (4k) drives */
789 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
790 		/*quirks*/DA_Q_4K
791 	},
792 	{
793 		/* Seagate Momentus Advanced Format (4k) drives */
794 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
795 		/*quirks*/DA_Q_4K
796 	},
797 	{
798 		/* Seagate Momentus Advanced Format (4k) drives */
799 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
800 		/*quirks*/DA_Q_4K
801 	},
802 	{
803 		/* Seagate Momentus Advanced Format (4k) drives */
804 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
805 		/*quirks*/DA_Q_4K
806 	},
807 	{
808 		/* Seagate Momentus Advanced Format (4k) drives */
809 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
810 		/*quirks*/DA_Q_4K
811 	},
812 	{
813 		/* Seagate Momentus Advanced Format (4k) drives */
814 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
815 		/*quirks*/DA_Q_4K
816 	},
817 	{
818 		/* Seagate Momentus Advanced Format (4k) drives */
819 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
820 		/*quirks*/DA_Q_4K
821 	},
822 	{
823 		/* Seagate Momentus Advanced Format (4k) drives */
824 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
825 		/*quirks*/DA_Q_4K
826 	},
827 	{
828 		/* Seagate Momentus Advanced Format (4k) drives */
829 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
830 		/*quirks*/DA_Q_4K
831 	},
832 	{
833 		/* Seagate Momentus Advanced Format (4k) drives */
834 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
835 		/*quirks*/DA_Q_4K
836 	},
837 	{
838 		/* Seagate Momentus Advanced Format (4k) drives */
839 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
840 		/*quirks*/DA_Q_4K
841 	},
842 	{
843 		/* Seagate Momentus Thin Advanced Format (4k) drives */
844 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
845 		/*quirks*/DA_Q_4K
846 	},
847 	{
848 		/* Seagate Momentus Thin Advanced Format (4k) drives */
849 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
850 		/*quirks*/DA_Q_4K
851 	},
852 	{
853 		/* WDC Caviar Green Advanced Format (4k) drives */
854 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
855 		/*quirks*/DA_Q_4K
856 	},
857 	{
858 		/* WDC Caviar Green Advanced Format (4k) drives */
859 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
860 		/*quirks*/DA_Q_4K
861 	},
862 	{
863 		/* WDC Caviar Green Advanced Format (4k) drives */
864 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
865 		/*quirks*/DA_Q_4K
866 	},
867 	{
868 		/* WDC Caviar Green Advanced Format (4k) drives */
869 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
870 		/*quirks*/DA_Q_4K
871 	},
872 	{
873 		/* WDC Caviar Green Advanced Format (4k) drives */
874 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
875 		/*quirks*/DA_Q_4K
876 	},
877 	{
878 		/* WDC Caviar Green Advanced Format (4k) drives */
879 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
880 		/*quirks*/DA_Q_4K
881 	},
882 	{
883 		/* WDC Caviar Green Advanced Format (4k) drives */
884 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
885 		/*quirks*/DA_Q_4K
886 	},
887 	{
888 		/* WDC Caviar Green Advanced Format (4k) drives */
889 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
890 		/*quirks*/DA_Q_4K
891 	},
892 	{
893 		/* WDC Scorpio Black Advanced Format (4k) drives */
894 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
895 		/*quirks*/DA_Q_4K
896 	},
897 	{
898 		/* WDC Scorpio Black Advanced Format (4k) drives */
899 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
900 		/*quirks*/DA_Q_4K
901 	},
902 	{
903 		/* WDC Scorpio Black Advanced Format (4k) drives */
904 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
905 		/*quirks*/DA_Q_4K
906 	},
907 	{
908 		/* WDC Scorpio Black Advanced Format (4k) drives */
909 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
910 		/*quirks*/DA_Q_4K
911 	},
912 	{
913 		/* WDC Scorpio Blue Advanced Format (4k) drives */
914 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
915 		/*quirks*/DA_Q_4K
916 	},
917 	{
918 		/* WDC Scorpio Blue Advanced Format (4k) drives */
919 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
920 		/*quirks*/DA_Q_4K
921 	},
922 	{
923 		/* WDC Scorpio Blue Advanced Format (4k) drives */
924 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
925 		/*quirks*/DA_Q_4K
926 	},
927 	{
928 		/* WDC Scorpio Blue Advanced Format (4k) drives */
929 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
930 		/*quirks*/DA_Q_4K
931 	},
932 	{
933 		/*
934 		 * Olympus FE-210 camera
935 		 */
936 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
937 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
938 	},
939 	{
940 		/*
941 		 * LG UP3S MP3 player
942 		 */
943 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
944 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
945 	},
946 	{
947 		/*
948 		 * Laser MP3-2GA13 MP3 player
949 		 */
950 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
951 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
952 	},
953 	{
954 		/*
955 		 * LaCie external 250GB Hard drive des by Porsche
956 		 * Submitted by: Ben Stuyts <ben@altesco.nl>
957 		 * PR: 121474
958 		 */
959 		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
960 		/*quirks*/ DA_Q_NO_SYNC_CACHE
961 	},
962 	/* SATA SSDs */
963 	{
964 		/*
965 		 * Corsair Force 2 SSDs
966 		 * 4k optimised & trim only works in 4k requests + 4k aligned
967 		 */
968 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
969 		/*quirks*/DA_Q_4K
970 	},
971 	{
972 		/*
973 		 * Corsair Force 3 SSDs
974 		 * 4k optimised & trim only works in 4k requests + 4k aligned
975 		 */
976 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
977 		/*quirks*/DA_Q_4K
978 	},
979         {
980 		/*
981 		 * Corsair Neutron GTX SSDs
982 		 * 4k optimised & trim only works in 4k requests + 4k aligned
983 		 */
984 		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
985 		/*quirks*/DA_Q_4K
986 	},
987 	{
988 		/*
989 		 * Corsair Force GT & GS SSDs
990 		 * 4k optimised & trim only works in 4k requests + 4k aligned
991 		 */
992 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
993 		/*quirks*/DA_Q_4K
994 	},
995 	{
996 		/*
997 		 * Crucial M4 SSDs
998 		 * 4k optimised & trim only works in 4k requests + 4k aligned
999 		 */
1000 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
1001 		/*quirks*/DA_Q_4K
1002 	},
1003 	{
1004 		/*
1005 		 * Crucial RealSSD C300 SSDs
1006 		 * 4k optimised
1007 		 */
1008 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
1009 		"*" }, /*quirks*/DA_Q_4K
1010 	},
1011 	{
1012 		/*
1013 		 * Intel 320 Series SSDs
1014 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1015 		 */
1016 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1017 		/*quirks*/DA_Q_4K
1018 	},
1019 	{
1020 		/*
1021 		 * Intel 330 Series SSDs
1022 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1023 		 */
1024 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1025 		/*quirks*/DA_Q_4K
1026 	},
1027 	{
1028 		/*
1029 		 * Intel 510 Series SSDs
1030 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1031 		 */
1032 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1033 		/*quirks*/DA_Q_4K
1034 	},
1035 	{
1036 		/*
1037 		 * Intel 520 Series SSDs
1038 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1039 		 */
1040 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1041 		/*quirks*/DA_Q_4K
1042 	},
1043 	{
1044 		/*
1045 		 * Intel X25-M Series SSDs
1046 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1047 		 */
1048 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1049 		/*quirks*/DA_Q_4K
1050 	},
1051 	{
1052 		/*
1053 		 * Kingston E100 Series SSDs
1054 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1055 		 */
1056 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1057 		/*quirks*/DA_Q_4K
1058 	},
1059 	{
1060 		/*
1061 		 * Kingston HyperX 3k SSDs
1062 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1063 		 */
1064 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1065 		/*quirks*/DA_Q_4K
1066 	},
1067 	{
1068 		/*
1069 		 * Marvell SSDs (entry taken from OpenSolaris)
1070 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1071 		 */
1072 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1073 		/*quirks*/DA_Q_4K
1074 	},
1075 	{
1076 		/*
1077 		 * OCZ Agility 2 SSDs
1078 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1079 		 */
1080 		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1081 		/*quirks*/DA_Q_4K
1082 	},
1083 	{
1084 		/*
1085 		 * OCZ Agility 3 SSDs
1086 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1087 		 */
1088 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1089 		/*quirks*/DA_Q_4K
1090 	},
1091 	{
1092 		/*
1093 		 * OCZ Deneva R Series SSDs
1094 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1095 		 */
1096 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1097 		/*quirks*/DA_Q_4K
1098 	},
1099 	{
1100 		/*
1101 		 * OCZ Vertex 2 SSDs (inc pro series)
1102 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1103 		 */
1104 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1105 		/*quirks*/DA_Q_4K
1106 	},
1107 	{
1108 		/*
1109 		 * OCZ Vertex 3 SSDs
1110 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1111 		 */
1112 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1113 		/*quirks*/DA_Q_4K
1114 	},
1115 	{
1116 		/*
1117 		 * OCZ Vertex 4 SSDs
1118 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1119 		 */
1120 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1121 		/*quirks*/DA_Q_4K
1122 	},
1123 	{
1124 		/*
1125 		 * Samsung 830 Series SSDs
1126 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1127 		 */
1128 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1129 		/*quirks*/DA_Q_4K
1130 	},
1131 	{
1132 		/*
1133 		 * Samsung 840 SSDs
1134 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1135 		 */
1136 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1137 		/*quirks*/DA_Q_4K
1138 	},
1139 	{
1140 		/*
1141 		 * Samsung 850 SSDs
1142 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1143 		 */
1144 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
1145 		/*quirks*/DA_Q_4K
1146 	},
1147 	{
1148 		/*
1149 		 * Samsung 843T Series SSDs (MZ7WD*)
1150 		 * Samsung PM851 Series SSDs (MZ7TE*)
1151 		 * Samsung PM853T Series SSDs (MZ7GE*)
1152 		 * Samsung SM863 Series SSDs (MZ7KM*)
1153 		 * 4k optimised
1154 		 */
1155 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7*", "*" },
1156 		/*quirks*/DA_Q_4K
1157 	},
1158 	{
1159 		/*
1160 		 * SuperTalent TeraDrive CT SSDs
1161 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1162 		 */
1163 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1164 		/*quirks*/DA_Q_4K
1165 	},
1166 	{
1167 		/*
1168 		 * XceedIOPS SATA SSDs
1169 		 * 4k optimised
1170 		 */
1171 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1172 		/*quirks*/DA_Q_4K
1173 	},
1174 	{
1175 		/*
1176 		 * Hama Innostor USB-Stick
1177 		 */
1178 		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "Innostor", "Innostor*", "*" },
1179 		/*quirks*/DA_Q_NO_RC16
1180 	},
1181 	{
1182 		/*
1183 		 * MX-ES USB Drive by Mach Xtreme
1184 		 */
1185 		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "MX", "MXUB3*", "*"},
1186 		/*quirks*/DA_Q_NO_RC16
1187 	},
1188 };
1189 
1190 static	disk_strategy_t	dastrategy;
1191 static	dumper_t	dadump;
1192 static	periph_init_t	dainit;
1193 static	void		daasync(void *callback_arg, u_int32_t code,
1194 				struct cam_path *path, void *arg);
1195 static	void		dasysctlinit(void *context, int pending);
1196 static	int		dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1197 static	int		dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1198 static	int		dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1199 static	void		dadeletemethodset(struct da_softc *softc,
1200 					  da_delete_methods delete_method);
1201 static	off_t		dadeletemaxsize(struct da_softc *softc,
1202 					da_delete_methods delete_method);
1203 static	void		dadeletemethodchoose(struct da_softc *softc,
1204 					     da_delete_methods default_method);
1205 static	void		daprobedone(struct cam_periph *periph, union ccb *ccb);
1206 
1207 static	periph_ctor_t	daregister;
1208 static	periph_dtor_t	dacleanup;
1209 static	periph_start_t	dastart;
1210 static	periph_oninv_t	daoninvalidate;
1211 static	void		dadone(struct cam_periph *periph,
1212 			       union ccb *done_ccb);
1213 static  int		daerror(union ccb *ccb, u_int32_t cam_flags,
1214 				u_int32_t sense_flags);
1215 static void		daprevent(struct cam_periph *periph, int action);
1216 static void		dareprobe(struct cam_periph *periph);
1217 static void		dasetgeom(struct cam_periph *periph, uint32_t block_len,
1218 				  uint64_t maxsector,
1219 				  struct scsi_read_capacity_data_long *rcaplong,
1220 				  size_t rcap_size);
1221 static timeout_t	dasendorderedtag;
1222 static void		dashutdown(void *arg, int howto);
1223 static timeout_t	damediapoll;
1224 
1225 #ifndef	DA_DEFAULT_POLL_PERIOD
1226 #define	DA_DEFAULT_POLL_PERIOD	3
1227 #endif
1228 
1229 #ifndef DA_DEFAULT_TIMEOUT
1230 #define DA_DEFAULT_TIMEOUT 60	/* Timeout in seconds */
1231 #endif
1232 
1233 #ifndef	DA_DEFAULT_RETRY
1234 #define	DA_DEFAULT_RETRY	4
1235 #endif
1236 
1237 #ifndef	DA_DEFAULT_SEND_ORDERED
1238 #define	DA_DEFAULT_SEND_ORDERED	1
1239 #endif
1240 
1241 #define DA_SIO (softc->sort_io_queue >= 0 ? \
1242     softc->sort_io_queue : cam_sort_io_queues)
1243 
1244 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1245 static int da_retry_count = DA_DEFAULT_RETRY;
1246 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1247 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1248 
1249 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1250             "CAM Direct Access Disk driver");
1251 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RWTUN,
1252            &da_poll_period, 0, "Media polling period in seconds");
1253 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RWTUN,
1254            &da_retry_count, 0, "Normal I/O retry count");
1255 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RWTUN,
1256            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1257 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RWTUN,
1258            &da_send_ordered, 0, "Send Ordered Tags");
1259 
1260 /*
1261  * DA_ORDEREDTAG_INTERVAL determines how often, relative
1262  * to the default timeout, we check to see whether an ordered
1263  * tagged transaction is appropriate to prevent simple tag
1264  * starvation.  Since we'd like to ensure that there is at least
1265  * 1/2 of the timeout length left for a starved transaction to
1266  * complete after we've sent an ordered tag, we must poll at least
1267  * four times in every timeout period.  This takes care of the worst
1268  * case where a starved transaction starts during an interval that
1269  * meets the requirement "don't send an ordered tag" test so it takes
1270  * us two intervals to determine that a tag must be sent.
1271  */
1272 #ifndef DA_ORDEREDTAG_INTERVAL
1273 #define DA_ORDEREDTAG_INTERVAL 4
1274 #endif
1275 
1276 static struct periph_driver dadriver =
1277 {
1278 	dainit, "da",
1279 	TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1280 };
1281 
1282 PERIPHDRIVER_DECLARE(da, dadriver);
1283 
1284 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1285 
1286 static int
1287 daopen(struct disk *dp)
1288 {
1289 	struct cam_periph *periph;
1290 	struct da_softc *softc;
1291 	int error;
1292 
1293 	periph = (struct cam_periph *)dp->d_drv1;
1294 	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1295 		return (ENXIO);
1296 	}
1297 
1298 	cam_periph_lock(periph);
1299 	if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1300 		cam_periph_unlock(periph);
1301 		cam_periph_release(periph);
1302 		return (error);
1303 	}
1304 
1305 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1306 	    ("daopen\n"));
1307 
1308 	softc = (struct da_softc *)periph->softc;
1309 	dareprobe(periph);
1310 
1311 	/* Wait for the disk size update.  */
1312 	error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1313 	    "dareprobe", 0);
1314 	if (error != 0)
1315 		xpt_print(periph->path, "unable to retrieve capacity data\n");
1316 
1317 	if (periph->flags & CAM_PERIPH_INVALID)
1318 		error = ENXIO;
1319 
1320 	if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1321 	    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1322 		daprevent(periph, PR_PREVENT);
1323 
1324 	if (error == 0) {
1325 		softc->flags &= ~DA_FLAG_PACK_INVALID;
1326 		softc->flags |= DA_FLAG_OPEN;
1327 	}
1328 
1329 	cam_periph_unhold(periph);
1330 	cam_periph_unlock(periph);
1331 
1332 	if (error != 0)
1333 		cam_periph_release(periph);
1334 
1335 	return (error);
1336 }
1337 
1338 static int
1339 daclose(struct disk *dp)
1340 {
1341 	struct	cam_periph *periph;
1342 	struct	da_softc *softc;
1343 	union	ccb *ccb;
1344 	int error;
1345 
1346 	periph = (struct cam_periph *)dp->d_drv1;
1347 	softc = (struct da_softc *)periph->softc;
1348 	cam_periph_lock(periph);
1349 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1350 	    ("daclose\n"));
1351 
1352 	if (cam_periph_hold(periph, PRIBIO) == 0) {
1353 
1354 		/* Flush disk cache. */
1355 		if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1356 		    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1357 		    (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1358 			ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1359 			scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1360 			    /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1361 			    /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1362 			    5 * 60 * 1000);
1363 			error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1364 			    /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1365 			    softc->disk->d_devstat);
1366 			if (error == 0)
1367 				softc->flags &= ~DA_FLAG_DIRTY;
1368 			xpt_release_ccb(ccb);
1369 		}
1370 
1371 		/* Allow medium removal. */
1372 		if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1373 		    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1374 			daprevent(periph, PR_ALLOW);
1375 
1376 		cam_periph_unhold(periph);
1377 	}
1378 
1379 	/*
1380 	 * If we've got removeable media, mark the blocksize as
1381 	 * unavailable, since it could change when new media is
1382 	 * inserted.
1383 	 */
1384 	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1385 		softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1386 
1387 	softc->flags &= ~DA_FLAG_OPEN;
1388 	while (softc->refcount != 0)
1389 		cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1390 	cam_periph_unlock(periph);
1391 	cam_periph_release(periph);
1392 	return (0);
1393 }
1394 
1395 static void
1396 daschedule(struct cam_periph *periph)
1397 {
1398 	struct da_softc *softc = (struct da_softc *)periph->softc;
1399 
1400 	if (softc->state != DA_STATE_NORMAL)
1401 		return;
1402 
1403 	/* Check if we have more work to do. */
1404 	if (bioq_first(&softc->bio_queue) ||
1405 	    (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1406 	    softc->tur) {
1407 		xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1408 	}
1409 }
1410 
1411 /*
1412  * Actually translate the requested transfer into one the physical driver
1413  * can understand.  The transfer is described by a buf and will include
1414  * only one physical transfer.
1415  */
1416 static void
1417 dastrategy(struct bio *bp)
1418 {
1419 	struct cam_periph *periph;
1420 	struct da_softc *softc;
1421 
1422 	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1423 	softc = (struct da_softc *)periph->softc;
1424 
1425 	cam_periph_lock(periph);
1426 
1427 	/*
1428 	 * If the device has been made invalid, error out
1429 	 */
1430 	if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1431 		cam_periph_unlock(periph);
1432 		biofinish(bp, NULL, ENXIO);
1433 		return;
1434 	}
1435 
1436 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1437 
1438 	/*
1439 	 * Place it in the queue of disk activities for this disk
1440 	 */
1441 	if (bp->bio_cmd == BIO_DELETE) {
1442 		bioq_disksort(&softc->delete_queue, bp);
1443 	} else if (DA_SIO) {
1444 		bioq_disksort(&softc->bio_queue, bp);
1445 	} else {
1446 		bioq_insert_tail(&softc->bio_queue, bp);
1447 	}
1448 
1449 	/*
1450 	 * Schedule ourselves for performing the work.
1451 	 */
1452 	daschedule(periph);
1453 	cam_periph_unlock(periph);
1454 
1455 	return;
1456 }
1457 
1458 static int
1459 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1460 {
1461 	struct	    cam_periph *periph;
1462 	struct	    da_softc *softc;
1463 	u_int	    secsize;
1464 	struct	    ccb_scsiio csio;
1465 	struct	    disk *dp;
1466 	int	    error = 0;
1467 
1468 	dp = arg;
1469 	periph = dp->d_drv1;
1470 	softc = (struct da_softc *)periph->softc;
1471 	cam_periph_lock(periph);
1472 	secsize = softc->params.secsize;
1473 
1474 	if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1475 		cam_periph_unlock(periph);
1476 		return (ENXIO);
1477 	}
1478 
1479 	if (length > 0) {
1480 		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1481 		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1482 		scsi_read_write(&csio,
1483 				/*retries*/0,
1484 				dadone,
1485 				MSG_ORDERED_Q_TAG,
1486 				/*read*/SCSI_RW_WRITE,
1487 				/*byte2*/0,
1488 				/*minimum_cmd_size*/ softc->minimum_cmd_size,
1489 				offset / secsize,
1490 				length / secsize,
1491 				/*data_ptr*/(u_int8_t *) virtual,
1492 				/*dxfer_len*/length,
1493 				/*sense_len*/SSD_FULL_SIZE,
1494 				da_default_timeout * 1000);
1495 		xpt_polled_action((union ccb *)&csio);
1496 
1497 		error = cam_periph_error((union ccb *)&csio,
1498 		    0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1499 		if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1500 			cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1501 			    /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1502 		if (error != 0)
1503 			printf("Aborting dump due to I/O error.\n");
1504 		cam_periph_unlock(periph);
1505 		return (error);
1506 	}
1507 
1508 	/*
1509 	 * Sync the disk cache contents to the physical media.
1510 	 */
1511 	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1512 
1513 		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1514 		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1515 		scsi_synchronize_cache(&csio,
1516 				       /*retries*/0,
1517 				       /*cbfcnp*/dadone,
1518 				       MSG_SIMPLE_Q_TAG,
1519 				       /*begin_lba*/0,/* Cover the whole disk */
1520 				       /*lb_count*/0,
1521 				       SSD_FULL_SIZE,
1522 				       5 * 60 * 1000);
1523 		xpt_polled_action((union ccb *)&csio);
1524 
1525 		error = cam_periph_error((union ccb *)&csio,
1526 		    0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1527 		if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1528 			cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1529 			    /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1530 		if (error != 0)
1531 			xpt_print(periph->path, "Synchronize cache failed\n");
1532 	}
1533 	cam_periph_unlock(periph);
1534 	return (error);
1535 }
1536 
1537 static int
1538 dagetattr(struct bio *bp)
1539 {
1540 	int ret;
1541 	struct cam_periph *periph;
1542 
1543 	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1544 	cam_periph_lock(periph);
1545 	ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1546 	    periph->path);
1547 	cam_periph_unlock(periph);
1548 	if (ret == 0)
1549 		bp->bio_completed = bp->bio_length;
1550 	return ret;
1551 }
1552 
1553 static void
1554 dainit(void)
1555 {
1556 	cam_status status;
1557 
1558 	/*
1559 	 * Install a global async callback.  This callback will
1560 	 * receive async callbacks like "new device found".
1561 	 */
1562 	status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1563 
1564 	if (status != CAM_REQ_CMP) {
1565 		printf("da: Failed to attach master async callback "
1566 		       "due to status 0x%x!\n", status);
1567 	} else if (da_send_ordered) {
1568 
1569 		/* Register our shutdown event handler */
1570 		if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1571 					   NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1572 		    printf("dainit: shutdown event registration failed!\n");
1573 	}
1574 }
1575 
1576 /*
1577  * Callback from GEOM, called when it has finished cleaning up its
1578  * resources.
1579  */
1580 static void
1581 dadiskgonecb(struct disk *dp)
1582 {
1583 	struct cam_periph *periph;
1584 
1585 	periph = (struct cam_periph *)dp->d_drv1;
1586 	cam_periph_release(periph);
1587 }
1588 
1589 static void
1590 daoninvalidate(struct cam_periph *periph)
1591 {
1592 	struct da_softc *softc;
1593 
1594 	softc = (struct da_softc *)periph->softc;
1595 
1596 	/*
1597 	 * De-register any async callbacks.
1598 	 */
1599 	xpt_register_async(0, daasync, periph, periph->path);
1600 
1601 	softc->flags |= DA_FLAG_PACK_INVALID;
1602 
1603 	/*
1604 	 * Return all queued I/O with ENXIO.
1605 	 * XXX Handle any transactions queued to the card
1606 	 *     with XPT_ABORT_CCB.
1607 	 */
1608 	bioq_flush(&softc->bio_queue, NULL, ENXIO);
1609 	bioq_flush(&softc->delete_queue, NULL, ENXIO);
1610 
1611 	/*
1612 	 * Tell GEOM that we've gone away, we'll get a callback when it is
1613 	 * done cleaning up its resources.
1614 	 */
1615 	disk_gone(softc->disk);
1616 }
1617 
1618 static void
1619 dacleanup(struct cam_periph *periph)
1620 {
1621 	struct da_softc *softc;
1622 
1623 	softc = (struct da_softc *)periph->softc;
1624 
1625 	cam_periph_unlock(periph);
1626 
1627 	/*
1628 	 * If we can't free the sysctl tree, oh well...
1629 	 */
1630 	if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1631 	    && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1632 		xpt_print(periph->path, "can't remove sysctl context\n");
1633 	}
1634 
1635 	callout_drain(&softc->mediapoll_c);
1636 	disk_destroy(softc->disk);
1637 	callout_drain(&softc->sendordered_c);
1638 	free(softc, M_DEVBUF);
1639 	cam_periph_lock(periph);
1640 }
1641 
1642 static void
1643 daasync(void *callback_arg, u_int32_t code,
1644 	struct cam_path *path, void *arg)
1645 {
1646 	struct cam_periph *periph;
1647 	struct da_softc *softc;
1648 
1649 	periph = (struct cam_periph *)callback_arg;
1650 	switch (code) {
1651 	case AC_FOUND_DEVICE:
1652 	{
1653 		struct ccb_getdev *cgd;
1654 		cam_status status;
1655 
1656 		cgd = (struct ccb_getdev *)arg;
1657 		if (cgd == NULL)
1658 			break;
1659 
1660 		if (cgd->protocol != PROTO_SCSI)
1661 			break;
1662 		if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
1663 			break;
1664 		if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1665 		    && SID_TYPE(&cgd->inq_data) != T_RBC
1666 		    && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1667 			break;
1668 
1669 		/*
1670 		 * Allocate a peripheral instance for
1671 		 * this device and start the probe
1672 		 * process.
1673 		 */
1674 		status = cam_periph_alloc(daregister, daoninvalidate,
1675 					  dacleanup, dastart,
1676 					  "da", CAM_PERIPH_BIO,
1677 					  path, daasync,
1678 					  AC_FOUND_DEVICE, cgd);
1679 
1680 		if (status != CAM_REQ_CMP
1681 		 && status != CAM_REQ_INPROG)
1682 			printf("daasync: Unable to attach to new device "
1683 				"due to status 0x%x\n", status);
1684 		return;
1685 	}
1686 	case AC_ADVINFO_CHANGED:
1687 	{
1688 		uintptr_t buftype;
1689 
1690 		buftype = (uintptr_t)arg;
1691 		if (buftype == CDAI_TYPE_PHYS_PATH) {
1692 			struct da_softc *softc;
1693 
1694 			softc = periph->softc;
1695 			disk_attr_changed(softc->disk, "GEOM::physpath",
1696 					  M_NOWAIT);
1697 		}
1698 		break;
1699 	}
1700 	case AC_UNIT_ATTENTION:
1701 	{
1702 		union ccb *ccb;
1703 		int error_code, sense_key, asc, ascq;
1704 
1705 		softc = (struct da_softc *)periph->softc;
1706 		ccb = (union ccb *)arg;
1707 
1708 		/*
1709 		 * Handle all UNIT ATTENTIONs except our own,
1710 		 * as they will be handled by daerror().
1711 		 */
1712 		if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1713 		    scsi_extract_sense_ccb(ccb,
1714 		     &error_code, &sense_key, &asc, &ascq)) {
1715 			if (asc == 0x2A && ascq == 0x09) {
1716 				xpt_print(ccb->ccb_h.path,
1717 				    "Capacity data has changed\n");
1718 				softc->flags &= ~DA_FLAG_PROBED;
1719 				dareprobe(periph);
1720 			} else if (asc == 0x28 && ascq == 0x00) {
1721 				softc->flags &= ~DA_FLAG_PROBED;
1722 				disk_media_changed(softc->disk, M_NOWAIT);
1723 			} else if (asc == 0x3F && ascq == 0x03) {
1724 				xpt_print(ccb->ccb_h.path,
1725 				    "INQUIRY data has changed\n");
1726 				softc->flags &= ~DA_FLAG_PROBED;
1727 				dareprobe(periph);
1728 			}
1729 		}
1730 		cam_periph_async(periph, code, path, arg);
1731 		break;
1732 	}
1733 	case AC_SCSI_AEN:
1734 		softc = (struct da_softc *)periph->softc;
1735 		if (!softc->tur) {
1736 			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1737 				softc->tur = 1;
1738 				daschedule(periph);
1739 			}
1740 		}
1741 		/* FALLTHROUGH */
1742 	case AC_SENT_BDR:
1743 	case AC_BUS_RESET:
1744 	{
1745 		struct ccb_hdr *ccbh;
1746 
1747 		softc = (struct da_softc *)periph->softc;
1748 		/*
1749 		 * Don't fail on the expected unit attention
1750 		 * that will occur.
1751 		 */
1752 		softc->flags |= DA_FLAG_RETRY_UA;
1753 		LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1754 			ccbh->ccb_state |= DA_CCB_RETRY_UA;
1755 		break;
1756 	}
1757 	default:
1758 		break;
1759 	}
1760 	cam_periph_async(periph, code, path, arg);
1761 }
1762 
1763 static void
1764 dasysctlinit(void *context, int pending)
1765 {
1766 	struct cam_periph *periph;
1767 	struct da_softc *softc;
1768 	char tmpstr[80], tmpstr2[80];
1769 	struct ccb_trans_settings cts;
1770 
1771 	periph = (struct cam_periph *)context;
1772 	/*
1773 	 * periph was held for us when this task was enqueued
1774 	 */
1775 	if (periph->flags & CAM_PERIPH_INVALID) {
1776 		cam_periph_release(periph);
1777 		return;
1778 	}
1779 
1780 	softc = (struct da_softc *)periph->softc;
1781 	snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1782 	snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1783 
1784 	sysctl_ctx_init(&softc->sysctl_ctx);
1785 	softc->flags |= DA_FLAG_SCTX_INIT;
1786 	softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1787 		SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1788 		CTLFLAG_RD, 0, tmpstr);
1789 	if (softc->sysctl_tree == NULL) {
1790 		printf("dasysctlinit: unable to allocate sysctl tree\n");
1791 		cam_periph_release(periph);
1792 		return;
1793 	}
1794 
1795 	/*
1796 	 * Now register the sysctl handler, so the user can change the value on
1797 	 * the fly.
1798 	 */
1799 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1800 		OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RWTUN,
1801 		softc, 0, dadeletemethodsysctl, "A",
1802 		"BIO_DELETE execution method");
1803 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1804 		OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1805 		softc, 0, dadeletemaxsysctl, "Q",
1806 		"Maximum BIO_DELETE size");
1807 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1808 		OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1809 		&softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1810 		"Minimum CDB size");
1811 	SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1812 		OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1813 		"Sort IO queue to try and optimise disk access patterns");
1814 
1815 	SYSCTL_ADD_INT(&softc->sysctl_ctx,
1816 		       SYSCTL_CHILDREN(softc->sysctl_tree),
1817 		       OID_AUTO,
1818 		       "error_inject",
1819 		       CTLFLAG_RW,
1820 		       &softc->error_inject,
1821 		       0,
1822 		       "error_inject leaf");
1823 
1824 
1825 	/*
1826 	 * Add some addressing info.
1827 	 */
1828 	memset(&cts, 0, sizeof (cts));
1829 	xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1830 	cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1831 	cts.type = CTS_TYPE_CURRENT_SETTINGS;
1832 	cam_periph_lock(periph);
1833 	xpt_action((union ccb *)&cts);
1834 	cam_periph_unlock(periph);
1835 	if (cts.ccb_h.status != CAM_REQ_CMP) {
1836 		cam_periph_release(periph);
1837 		return;
1838 	}
1839 	if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1840 		struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1841 		if (fc->valid & CTS_FC_VALID_WWPN) {
1842 			softc->wwpn = fc->wwpn;
1843 			SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1844 			    SYSCTL_CHILDREN(softc->sysctl_tree),
1845 			    OID_AUTO, "wwpn", CTLFLAG_RD,
1846 			    &softc->wwpn, "World Wide Port Name");
1847 		}
1848 	}
1849 	cam_periph_release(periph);
1850 }
1851 
1852 static int
1853 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1854 {
1855 	int error;
1856 	uint64_t value;
1857 	struct da_softc *softc;
1858 
1859 	softc = (struct da_softc *)arg1;
1860 
1861 	value = softc->disk->d_delmaxsize;
1862 	error = sysctl_handle_64(oidp, &value, 0, req);
1863 	if ((error != 0) || (req->newptr == NULL))
1864 		return (error);
1865 
1866 	/* only accept values smaller than the calculated value */
1867 	if (value > dadeletemaxsize(softc, softc->delete_method)) {
1868 		return (EINVAL);
1869 	}
1870 	softc->disk->d_delmaxsize = value;
1871 
1872 	return (0);
1873 }
1874 
1875 static int
1876 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1877 {
1878 	int error, value;
1879 
1880 	value = *(int *)arg1;
1881 
1882 	error = sysctl_handle_int(oidp, &value, 0, req);
1883 
1884 	if ((error != 0)
1885 	 || (req->newptr == NULL))
1886 		return (error);
1887 
1888 	/*
1889 	 * Acceptable values here are 6, 10, 12 or 16.
1890 	 */
1891 	if (value < 6)
1892 		value = 6;
1893 	else if ((value > 6)
1894 	      && (value <= 10))
1895 		value = 10;
1896 	else if ((value > 10)
1897 	      && (value <= 12))
1898 		value = 12;
1899 	else if (value > 12)
1900 		value = 16;
1901 
1902 	*(int *)arg1 = value;
1903 
1904 	return (0);
1905 }
1906 
1907 static void
1908 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1909 {
1910 
1911 	softc->delete_method = delete_method;
1912 	softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1913 	softc->delete_func = da_delete_functions[delete_method];
1914 
1915 	if (softc->delete_method > DA_DELETE_DISABLE)
1916 		softc->disk->d_flags |= DISKFLAG_CANDELETE;
1917 	else
1918 		softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1919 }
1920 
1921 static off_t
1922 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1923 {
1924 	off_t sectors;
1925 
1926 	switch(delete_method) {
1927 	case DA_DELETE_UNMAP:
1928 		sectors = (off_t)softc->unmap_max_lba;
1929 		break;
1930 	case DA_DELETE_ATA_TRIM:
1931 		sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1932 		break;
1933 	case DA_DELETE_WS16:
1934 		sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
1935 		break;
1936 	case DA_DELETE_ZERO:
1937 	case DA_DELETE_WS10:
1938 		sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
1939 		break;
1940 	default:
1941 		return 0;
1942 	}
1943 
1944 	return (off_t)softc->params.secsize *
1945 	    omin(sectors, softc->params.sectors);
1946 }
1947 
1948 static void
1949 daprobedone(struct cam_periph *periph, union ccb *ccb)
1950 {
1951 	struct da_softc *softc;
1952 
1953 	softc = (struct da_softc *)periph->softc;
1954 
1955 	dadeletemethodchoose(softc, DA_DELETE_NONE);
1956 
1957 	if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1958 		char buf[80];
1959 		int i, sep;
1960 
1961 		snprintf(buf, sizeof(buf), "Delete methods: <");
1962 		sep = 0;
1963 		for (i = 0; i <= DA_DELETE_MAX; i++) {
1964 			if ((softc->delete_available & (1 << i)) == 0 &&
1965 			    i != softc->delete_method)
1966 				continue;
1967 			if (sep)
1968 				strlcat(buf, ",", sizeof(buf));
1969 			strlcat(buf, da_delete_method_names[i],
1970 			    sizeof(buf));
1971 			if (i == softc->delete_method)
1972 				strlcat(buf, "(*)", sizeof(buf));
1973 			sep = 1;
1974 		}
1975 		strlcat(buf, ">", sizeof(buf));
1976 		printf("%s%d: %s\n", periph->periph_name,
1977 		    periph->unit_number, buf);
1978 	}
1979 
1980 	/*
1981 	 * Since our peripheral may be invalidated by an error
1982 	 * above or an external event, we must release our CCB
1983 	 * before releasing the probe lock on the peripheral.
1984 	 * The peripheral will only go away once the last lock
1985 	 * is removed, and we need it around for the CCB release
1986 	 * operation.
1987 	 */
1988 	xpt_release_ccb(ccb);
1989 	softc->state = DA_STATE_NORMAL;
1990 	softc->flags |= DA_FLAG_PROBED;
1991 	daschedule(periph);
1992 	wakeup(&softc->disk->d_mediasize);
1993 	if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1994 		softc->flags |= DA_FLAG_ANNOUNCED;
1995 		cam_periph_unhold(periph);
1996 	} else
1997 		cam_periph_release_locked(periph);
1998 }
1999 
2000 static void
2001 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
2002 {
2003 	int i, methods;
2004 
2005 	/* If available, prefer the method requested by user. */
2006 	i = softc->delete_method_pref;
2007 	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2008 	if (methods & (1 << i)) {
2009 		dadeletemethodset(softc, i);
2010 		return;
2011 	}
2012 
2013 	/* Use the pre-defined order to choose the best performing delete. */
2014 	for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
2015 		if (i == DA_DELETE_ZERO)
2016 			continue;
2017 		if (softc->delete_available & (1 << i)) {
2018 			dadeletemethodset(softc, i);
2019 			return;
2020 		}
2021 	}
2022 
2023 	/* Fallback to default. */
2024 	dadeletemethodset(softc, default_method);
2025 }
2026 
2027 static int
2028 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
2029 {
2030 	char buf[16];
2031 	const char *p;
2032 	struct da_softc *softc;
2033 	int i, error, methods, value;
2034 
2035 	softc = (struct da_softc *)arg1;
2036 
2037 	value = softc->delete_method;
2038 	if (value < 0 || value > DA_DELETE_MAX)
2039 		p = "UNKNOWN";
2040 	else
2041 		p = da_delete_method_names[value];
2042 	strncpy(buf, p, sizeof(buf));
2043 	error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2044 	if (error != 0 || req->newptr == NULL)
2045 		return (error);
2046 	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2047 	for (i = 0; i <= DA_DELETE_MAX; i++) {
2048 		if (strcmp(buf, da_delete_method_names[i]) == 0)
2049 			break;
2050 	}
2051 	if (i > DA_DELETE_MAX)
2052 		return (EINVAL);
2053 	softc->delete_method_pref = i;
2054 	dadeletemethodchoose(softc, DA_DELETE_NONE);
2055 	return (0);
2056 }
2057 
2058 static cam_status
2059 daregister(struct cam_periph *periph, void *arg)
2060 {
2061 	struct da_softc *softc;
2062 	struct ccb_pathinq cpi;
2063 	struct ccb_getdev *cgd;
2064 	char tmpstr[80];
2065 	caddr_t match;
2066 
2067 	cgd = (struct ccb_getdev *)arg;
2068 	if (cgd == NULL) {
2069 		printf("daregister: no getdev CCB, can't register device\n");
2070 		return(CAM_REQ_CMP_ERR);
2071 	}
2072 
2073 	softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2074 	    M_NOWAIT|M_ZERO);
2075 
2076 	if (softc == NULL) {
2077 		printf("daregister: Unable to probe new device. "
2078 		       "Unable to allocate softc\n");
2079 		return(CAM_REQ_CMP_ERR);
2080 	}
2081 
2082 	LIST_INIT(&softc->pending_ccbs);
2083 	softc->state = DA_STATE_PROBE_RC;
2084 	bioq_init(&softc->bio_queue);
2085 	bioq_init(&softc->delete_queue);
2086 	bioq_init(&softc->delete_run_queue);
2087 	if (SID_IS_REMOVABLE(&cgd->inq_data))
2088 		softc->flags |= DA_FLAG_PACK_REMOVABLE;
2089 	softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2090 	softc->unmap_max_lba = UNMAP_RANGE_MAX;
2091 	softc->ws_max_blks = WS16_MAX_BLKS;
2092 	softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2093 	softc->sort_io_queue = -1;
2094 
2095 	periph->softc = softc;
2096 
2097 	/*
2098 	 * See if this device has any quirks.
2099 	 */
2100 	match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2101 			       (caddr_t)da_quirk_table,
2102 			       sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2103 			       sizeof(*da_quirk_table), scsi_inquiry_match);
2104 
2105 	if (match != NULL)
2106 		softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2107 	else
2108 		softc->quirks = DA_Q_NONE;
2109 
2110 	/* Check if the SIM does not want 6 byte commands */
2111 	bzero(&cpi, sizeof(cpi));
2112 	xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2113 	cpi.ccb_h.func_code = XPT_PATH_INQ;
2114 	xpt_action((union ccb *)&cpi);
2115 	if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2116 		softc->quirks |= DA_Q_NO_6_BYTE;
2117 
2118 	TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2119 
2120 	/*
2121 	 * Take an exclusive refcount on the periph while dastart is called
2122 	 * to finish the probe.  The reference will be dropped in dadone at
2123 	 * the end of probe.
2124 	 */
2125 	(void)cam_periph_hold(periph, PRIBIO);
2126 
2127 	/*
2128 	 * Schedule a periodic event to occasionally send an
2129 	 * ordered tag to a device.
2130 	 */
2131 	callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2132 	callout_reset(&softc->sendordered_c,
2133 	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2134 	    dasendorderedtag, softc);
2135 
2136 	cam_periph_unlock(periph);
2137 	/*
2138 	 * RBC devices don't have to support READ(6), only READ(10).
2139 	 */
2140 	if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2141 		softc->minimum_cmd_size = 10;
2142 	else
2143 		softc->minimum_cmd_size = 6;
2144 
2145 	/*
2146 	 * Load the user's default, if any.
2147 	 */
2148 	snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2149 		 periph->unit_number);
2150 	TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2151 
2152 	/*
2153 	 * 6, 10, 12 and 16 are the currently permissible values.
2154 	 */
2155 	if (softc->minimum_cmd_size < 6)
2156 		softc->minimum_cmd_size = 6;
2157 	else if ((softc->minimum_cmd_size > 6)
2158 	      && (softc->minimum_cmd_size <= 10))
2159 		softc->minimum_cmd_size = 10;
2160 	else if ((softc->minimum_cmd_size > 10)
2161 	      && (softc->minimum_cmd_size <= 12))
2162 		softc->minimum_cmd_size = 12;
2163 	else if (softc->minimum_cmd_size > 12)
2164 		softc->minimum_cmd_size = 16;
2165 
2166 	/* Predict whether device may support READ CAPACITY(16). */
2167 	if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2168 	    (softc->quirks & DA_Q_NO_RC16) == 0) {
2169 		softc->flags |= DA_FLAG_CAN_RC16;
2170 		softc->state = DA_STATE_PROBE_RC16;
2171 	}
2172 
2173 	/*
2174 	 * Register this media as a disk.
2175 	 */
2176 	softc->disk = disk_alloc();
2177 	softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2178 			  periph->unit_number, 0,
2179 			  DEVSTAT_BS_UNAVAILABLE,
2180 			  SID_TYPE(&cgd->inq_data) |
2181 			  XPORT_DEVSTAT_TYPE(cpi.transport),
2182 			  DEVSTAT_PRIORITY_DISK);
2183 	softc->disk->d_open = daopen;
2184 	softc->disk->d_close = daclose;
2185 	softc->disk->d_strategy = dastrategy;
2186 	softc->disk->d_dump = dadump;
2187 	softc->disk->d_getattr = dagetattr;
2188 	softc->disk->d_gone = dadiskgonecb;
2189 	softc->disk->d_name = "da";
2190 	softc->disk->d_drv1 = periph;
2191 	if (cpi.maxio == 0)
2192 		softc->maxio = DFLTPHYS;	/* traditional default */
2193 	else if (cpi.maxio > MAXPHYS)
2194 		softc->maxio = MAXPHYS;		/* for safety */
2195 	else
2196 		softc->maxio = cpi.maxio;
2197 	softc->disk->d_maxsize = softc->maxio;
2198 	softc->disk->d_unit = periph->unit_number;
2199 	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
2200 	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2201 		softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2202 	if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2203 		softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2204 	cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2205 	    sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2206 	strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2207 	cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2208 	    cgd->inq_data.product, sizeof(cgd->inq_data.product),
2209 	    sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2210 	softc->disk->d_hba_vendor = cpi.hba_vendor;
2211 	softc->disk->d_hba_device = cpi.hba_device;
2212 	softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2213 	softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2214 
2215 	/*
2216 	 * Acquire a reference to the periph before we register with GEOM.
2217 	 * We'll release this reference once GEOM calls us back (via
2218 	 * dadiskgonecb()) telling us that our provider has been freed.
2219 	 */
2220 	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2221 		xpt_print(periph->path, "%s: lost periph during "
2222 			  "registration!\n", __func__);
2223 		cam_periph_lock(periph);
2224 		return (CAM_REQ_CMP_ERR);
2225 	}
2226 
2227 	disk_create(softc->disk, DISK_VERSION);
2228 	cam_periph_lock(periph);
2229 
2230 	/*
2231 	 * Add async callbacks for events of interest.
2232 	 * I don't bother checking if this fails as,
2233 	 * in most cases, the system will function just
2234 	 * fine without them and the only alternative
2235 	 * would be to not attach the device on failure.
2236 	 */
2237 	xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2238 	    AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
2239 	    daasync, periph, periph->path);
2240 
2241 	/*
2242 	 * Emit an attribute changed notification just in case
2243 	 * physical path information arrived before our async
2244 	 * event handler was registered, but after anyone attaching
2245 	 * to our disk device polled it.
2246 	 */
2247 	disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2248 
2249 	/*
2250 	 * Schedule a periodic media polling events.
2251 	 */
2252 	callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2253 	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2254 	    (cgd->inq_flags & SID_AEN) == 0 &&
2255 	    da_poll_period != 0)
2256 		callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2257 		    damediapoll, periph);
2258 
2259 	xpt_schedule(periph, CAM_PRIORITY_DEV);
2260 
2261 	return(CAM_REQ_CMP);
2262 }
2263 
2264 static void
2265 dastart(struct cam_periph *periph, union ccb *start_ccb)
2266 {
2267 	struct da_softc *softc;
2268 
2269 	softc = (struct da_softc *)periph->softc;
2270 
2271 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2272 
2273 skipstate:
2274 	switch (softc->state) {
2275 	case DA_STATE_NORMAL:
2276 	{
2277 		struct bio *bp;
2278 		uint8_t tag_code;
2279 
2280 		/* Run BIO_DELETE if not running yet. */
2281 		if (!softc->delete_running &&
2282 		    (bp = bioq_first(&softc->delete_queue)) != NULL) {
2283 			if (softc->delete_func != NULL) {
2284 				softc->delete_func(periph, start_ccb, bp);
2285 				goto out;
2286 			} else {
2287 				bioq_flush(&softc->delete_queue, NULL, 0);
2288 				/* FALLTHROUGH */
2289 			}
2290 		}
2291 
2292 		/* Run regular command. */
2293 		bp = bioq_takefirst(&softc->bio_queue);
2294 		if (bp == NULL) {
2295 			if (softc->tur) {
2296 				softc->tur = 0;
2297 				scsi_test_unit_ready(&start_ccb->csio,
2298 				     /*retries*/ da_retry_count,
2299 				     dadone,
2300 				     MSG_SIMPLE_Q_TAG,
2301 				     SSD_FULL_SIZE,
2302 				     da_default_timeout * 1000);
2303 				start_ccb->ccb_h.ccb_bp = NULL;
2304 				start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2305 				xpt_action(start_ccb);
2306 			} else
2307 				xpt_release_ccb(start_ccb);
2308 			break;
2309 		}
2310 		if (softc->tur) {
2311 			softc->tur = 0;
2312 			cam_periph_release_locked(periph);
2313 		}
2314 
2315 		if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2316 		    (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2317 			softc->flags &= ~DA_FLAG_NEED_OTAG;
2318 			softc->flags |= DA_FLAG_WAS_OTAG;
2319 			tag_code = MSG_ORDERED_Q_TAG;
2320 		} else {
2321 			tag_code = MSG_SIMPLE_Q_TAG;
2322 		}
2323 
2324 		switch (bp->bio_cmd) {
2325 		case BIO_WRITE:
2326 		case BIO_READ:
2327 		{
2328 			void *data_ptr;
2329 			int rw_op;
2330 
2331 			if (bp->bio_cmd == BIO_WRITE) {
2332 				softc->flags |= DA_FLAG_DIRTY;
2333 				rw_op = SCSI_RW_WRITE;
2334 			} else {
2335 				rw_op = SCSI_RW_READ;
2336 			}
2337 
2338 			data_ptr = bp->bio_data;
2339 			if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) {
2340 				rw_op |= SCSI_RW_BIO;
2341 				data_ptr = bp;
2342 			}
2343 
2344 			scsi_read_write(&start_ccb->csio,
2345 					/*retries*/da_retry_count,
2346 					/*cbfcnp*/dadone,
2347 					/*tag_action*/tag_code,
2348 					rw_op,
2349 					/*byte2*/0,
2350 					softc->minimum_cmd_size,
2351 					/*lba*/bp->bio_pblkno,
2352 					/*block_count*/bp->bio_bcount /
2353 					softc->params.secsize,
2354 					data_ptr,
2355 					/*dxfer_len*/ bp->bio_bcount,
2356 					/*sense_len*/SSD_FULL_SIZE,
2357 					da_default_timeout * 1000);
2358 			break;
2359 		}
2360 		case BIO_FLUSH:
2361 			/*
2362 			 * BIO_FLUSH doesn't currently communicate
2363 			 * range data, so we synchronize the cache
2364 			 * over the whole disk.  We also force
2365 			 * ordered tag semantics the flush applies
2366 			 * to all previously queued I/O.
2367 			 */
2368 			scsi_synchronize_cache(&start_ccb->csio,
2369 					       /*retries*/1,
2370 					       /*cbfcnp*/dadone,
2371 					       MSG_ORDERED_Q_TAG,
2372 					       /*begin_lba*/0,
2373 					       /*lb_count*/0,
2374 					       SSD_FULL_SIZE,
2375 					       da_default_timeout*1000);
2376 			break;
2377 		}
2378 		start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2379 		start_ccb->ccb_h.flags |= CAM_UNLOCKED;
2380 
2381 out:
2382 		LIST_INSERT_HEAD(&softc->pending_ccbs,
2383 				 &start_ccb->ccb_h, periph_links.le);
2384 
2385 		/* We expect a unit attention from this device */
2386 		if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2387 			start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2388 			softc->flags &= ~DA_FLAG_RETRY_UA;
2389 		}
2390 
2391 		start_ccb->ccb_h.ccb_bp = bp;
2392 		softc->refcount++;
2393 		cam_periph_unlock(periph);
2394 		xpt_action(start_ccb);
2395 		cam_periph_lock(periph);
2396 		softc->refcount--;
2397 
2398 		/* May have more work to do, so ensure we stay scheduled */
2399 		daschedule(periph);
2400 		break;
2401 	}
2402 	case DA_STATE_PROBE_RC:
2403 	{
2404 		struct scsi_read_capacity_data *rcap;
2405 
2406 		rcap = (struct scsi_read_capacity_data *)
2407 		    malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2408 		if (rcap == NULL) {
2409 			printf("dastart: Couldn't malloc read_capacity data\n");
2410 			/* da_free_periph??? */
2411 			break;
2412 		}
2413 		scsi_read_capacity(&start_ccb->csio,
2414 				   /*retries*/da_retry_count,
2415 				   dadone,
2416 				   MSG_SIMPLE_Q_TAG,
2417 				   rcap,
2418 				   SSD_FULL_SIZE,
2419 				   /*timeout*/5000);
2420 		start_ccb->ccb_h.ccb_bp = NULL;
2421 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2422 		xpt_action(start_ccb);
2423 		break;
2424 	}
2425 	case DA_STATE_PROBE_RC16:
2426 	{
2427 		struct scsi_read_capacity_data_long *rcaplong;
2428 
2429 		rcaplong = (struct scsi_read_capacity_data_long *)
2430 			malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2431 		if (rcaplong == NULL) {
2432 			printf("dastart: Couldn't malloc read_capacity data\n");
2433 			/* da_free_periph??? */
2434 			break;
2435 		}
2436 		scsi_read_capacity_16(&start_ccb->csio,
2437 				      /*retries*/ da_retry_count,
2438 				      /*cbfcnp*/ dadone,
2439 				      /*tag_action*/ MSG_SIMPLE_Q_TAG,
2440 				      /*lba*/ 0,
2441 				      /*reladr*/ 0,
2442 				      /*pmi*/ 0,
2443 				      /*rcap_buf*/ (uint8_t *)rcaplong,
2444 				      /*rcap_buf_len*/ sizeof(*rcaplong),
2445 				      /*sense_len*/ SSD_FULL_SIZE,
2446 				      /*timeout*/ da_default_timeout * 1000);
2447 		start_ccb->ccb_h.ccb_bp = NULL;
2448 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2449 		xpt_action(start_ccb);
2450 		break;
2451 	}
2452 	case DA_STATE_PROBE_LBP:
2453 	{
2454 		struct scsi_vpd_logical_block_prov *lbp;
2455 
2456 		if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2457 			/*
2458 			 * If we get here we don't support any SBC-3 delete
2459 			 * methods with UNMAP as the Logical Block Provisioning
2460 			 * VPD page support is required for devices which
2461 			 * support it according to T10/1799-D Revision 31
2462 			 * however older revisions of the spec don't mandate
2463 			 * this so we currently don't remove these methods
2464 			 * from the available set.
2465 			 */
2466 			softc->state = DA_STATE_PROBE_BLK_LIMITS;
2467 			goto skipstate;
2468 		}
2469 
2470 		lbp = (struct scsi_vpd_logical_block_prov *)
2471 			malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2472 
2473 		if (lbp == NULL) {
2474 			printf("dastart: Couldn't malloc lbp data\n");
2475 			/* da_free_periph??? */
2476 			break;
2477 		}
2478 
2479 		scsi_inquiry(&start_ccb->csio,
2480 			     /*retries*/da_retry_count,
2481 			     /*cbfcnp*/dadone,
2482 			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2483 			     /*inq_buf*/(u_int8_t *)lbp,
2484 			     /*inq_len*/sizeof(*lbp),
2485 			     /*evpd*/TRUE,
2486 			     /*page_code*/SVPD_LBP,
2487 			     /*sense_len*/SSD_MIN_SIZE,
2488 			     /*timeout*/da_default_timeout * 1000);
2489 		start_ccb->ccb_h.ccb_bp = NULL;
2490 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2491 		xpt_action(start_ccb);
2492 		break;
2493 	}
2494 	case DA_STATE_PROBE_BLK_LIMITS:
2495 	{
2496 		struct scsi_vpd_block_limits *block_limits;
2497 
2498 		if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2499 			/* Not supported skip to next probe */
2500 			softc->state = DA_STATE_PROBE_BDC;
2501 			goto skipstate;
2502 		}
2503 
2504 		block_limits = (struct scsi_vpd_block_limits *)
2505 			malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2506 
2507 		if (block_limits == NULL) {
2508 			printf("dastart: Couldn't malloc block_limits data\n");
2509 			/* da_free_periph??? */
2510 			break;
2511 		}
2512 
2513 		scsi_inquiry(&start_ccb->csio,
2514 			     /*retries*/da_retry_count,
2515 			     /*cbfcnp*/dadone,
2516 			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2517 			     /*inq_buf*/(u_int8_t *)block_limits,
2518 			     /*inq_len*/sizeof(*block_limits),
2519 			     /*evpd*/TRUE,
2520 			     /*page_code*/SVPD_BLOCK_LIMITS,
2521 			     /*sense_len*/SSD_MIN_SIZE,
2522 			     /*timeout*/da_default_timeout * 1000);
2523 		start_ccb->ccb_h.ccb_bp = NULL;
2524 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2525 		xpt_action(start_ccb);
2526 		break;
2527 	}
2528 	case DA_STATE_PROBE_BDC:
2529 	{
2530 		struct scsi_vpd_block_characteristics *bdc;
2531 
2532 		if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2533 			softc->state = DA_STATE_PROBE_ATA;
2534 			goto skipstate;
2535 		}
2536 
2537 		bdc = (struct scsi_vpd_block_characteristics *)
2538 			malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2539 
2540 		if (bdc == NULL) {
2541 			printf("dastart: Couldn't malloc bdc data\n");
2542 			/* da_free_periph??? */
2543 			break;
2544 		}
2545 
2546 		scsi_inquiry(&start_ccb->csio,
2547 			     /*retries*/da_retry_count,
2548 			     /*cbfcnp*/dadone,
2549 			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2550 			     /*inq_buf*/(u_int8_t *)bdc,
2551 			     /*inq_len*/sizeof(*bdc),
2552 			     /*evpd*/TRUE,
2553 			     /*page_code*/SVPD_BDC,
2554 			     /*sense_len*/SSD_MIN_SIZE,
2555 			     /*timeout*/da_default_timeout * 1000);
2556 		start_ccb->ccb_h.ccb_bp = NULL;
2557 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2558 		xpt_action(start_ccb);
2559 		break;
2560 	}
2561 	case DA_STATE_PROBE_ATA:
2562 	{
2563 		struct ata_params *ata_params;
2564 
2565 		if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2566 			daprobedone(periph, start_ccb);
2567 			break;
2568 		}
2569 
2570 		ata_params = (struct ata_params*)
2571 			malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2572 
2573 		if (ata_params == NULL) {
2574 			printf("dastart: Couldn't malloc ata_params data\n");
2575 			/* da_free_periph??? */
2576 			break;
2577 		}
2578 
2579 		scsi_ata_identify(&start_ccb->csio,
2580 				  /*retries*/da_retry_count,
2581 				  /*cbfcnp*/dadone,
2582                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
2583 				  /*data_ptr*/(u_int8_t *)ata_params,
2584 				  /*dxfer_len*/sizeof(*ata_params),
2585 				  /*sense_len*/SSD_FULL_SIZE,
2586 				  /*timeout*/da_default_timeout * 1000);
2587 		start_ccb->ccb_h.ccb_bp = NULL;
2588 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2589 		xpt_action(start_ccb);
2590 		break;
2591 	}
2592 	}
2593 }
2594 
2595 /*
2596  * In each of the methods below, while its the caller's
2597  * responsibility to ensure the request will fit into a
2598  * single device request, we might have changed the delete
2599  * method due to the device incorrectly advertising either
2600  * its supported methods or limits.
2601  *
2602  * To prevent this causing further issues we validate the
2603  * against the methods limits, and warn which would
2604  * otherwise be unnecessary.
2605  */
2606 static void
2607 da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2608 {
2609 	struct da_softc *softc = (struct da_softc *)periph->softc;;
2610 	struct bio *bp1;
2611 	uint8_t *buf = softc->unmap_buf;
2612 	uint64_t lba, lastlba = (uint64_t)-1;
2613 	uint64_t totalcount = 0;
2614 	uint64_t count;
2615 	uint32_t lastcount = 0, c;
2616 	uint32_t off, ranges = 0;
2617 
2618 	/*
2619 	 * Currently this doesn't take the UNMAP
2620 	 * Granularity and Granularity Alignment
2621 	 * fields into account.
2622 	 *
2623 	 * This could result in both unoptimal unmap
2624 	 * requests as as well as UNMAP calls unmapping
2625 	 * fewer LBA's than requested.
2626 	 */
2627 
2628 	softc->delete_running = 1;
2629 	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2630 	bp1 = bp;
2631 	do {
2632 		bioq_remove(&softc->delete_queue, bp1);
2633 		if (bp1 != bp)
2634 			bioq_insert_tail(&softc->delete_run_queue, bp1);
2635 		lba = bp1->bio_pblkno;
2636 		count = bp1->bio_bcount / softc->params.secsize;
2637 
2638 		/* Try to extend the previous range. */
2639 		if (lba == lastlba) {
2640 			c = omin(count, UNMAP_RANGE_MAX - lastcount);
2641 			lastcount += c;
2642 			off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2643 			      UNMAP_HEAD_SIZE;
2644 			scsi_ulto4b(lastcount, &buf[off + 8]);
2645 			count -= c;
2646 			lba +=c;
2647 			totalcount += c;
2648 		}
2649 
2650 		while (count > 0) {
2651 			c = omin(count, UNMAP_RANGE_MAX);
2652 			if (totalcount + c > softc->unmap_max_lba ||
2653 			    ranges >= softc->unmap_max_ranges) {
2654 				xpt_print(periph->path,
2655 				    "%s issuing short delete %ld > %ld"
2656 				    "|| %d >= %d",
2657 				    da_delete_method_desc[softc->delete_method],
2658 				    totalcount + c, softc->unmap_max_lba,
2659 				    ranges, softc->unmap_max_ranges);
2660 				break;
2661 			}
2662 			off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
2663 			scsi_u64to8b(lba, &buf[off + 0]);
2664 			scsi_ulto4b(c, &buf[off + 8]);
2665 			lba += c;
2666 			totalcount += c;
2667 			ranges++;
2668 			count -= c;
2669 			lastcount = c;
2670 		}
2671 		lastlba = lba;
2672 		bp1 = bioq_first(&softc->delete_queue);
2673 		if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
2674 		    totalcount + bp1->bio_bcount /
2675 		    softc->params.secsize > softc->unmap_max_lba)
2676 			break;
2677 	} while (1);
2678 	scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2679 	scsi_ulto2b(ranges * 16, &buf[2]);
2680 
2681 	scsi_unmap(&ccb->csio,
2682 		   /*retries*/da_retry_count,
2683 		   /*cbfcnp*/dadone,
2684 		   /*tag_action*/MSG_SIMPLE_Q_TAG,
2685 		   /*byte2*/0,
2686 		   /*data_ptr*/ buf,
2687 		   /*dxfer_len*/ ranges * 16 + 8,
2688 		   /*sense_len*/SSD_FULL_SIZE,
2689 		   da_default_timeout * 1000);
2690 	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2691 	ccb->ccb_h.flags |= CAM_UNLOCKED;
2692 }
2693 
2694 static void
2695 da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2696 {
2697 	struct da_softc *softc = (struct da_softc *)periph->softc;
2698 	struct bio *bp1;
2699 	uint8_t *buf = softc->unmap_buf;
2700 	uint64_t lastlba = (uint64_t)-1;
2701 	uint64_t count;
2702 	uint64_t lba;
2703 	uint32_t lastcount = 0, c, requestcount;
2704 	int ranges = 0, off, block_count;
2705 
2706 	softc->delete_running = 1;
2707 	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2708 	bp1 = bp;
2709 	do {
2710 		bioq_remove(&softc->delete_queue, bp1);
2711 		if (bp1 != bp)
2712 			bioq_insert_tail(&softc->delete_run_queue, bp1);
2713 		lba = bp1->bio_pblkno;
2714 		count = bp1->bio_bcount / softc->params.secsize;
2715 		requestcount = count;
2716 
2717 		/* Try to extend the previous range. */
2718 		if (lba == lastlba) {
2719 			c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
2720 			lastcount += c;
2721 			off = (ranges - 1) * 8;
2722 			buf[off + 6] = lastcount & 0xff;
2723 			buf[off + 7] = (lastcount >> 8) & 0xff;
2724 			count -= c;
2725 			lba += c;
2726 		}
2727 
2728 		while (count > 0) {
2729 			c = omin(count, ATA_DSM_RANGE_MAX);
2730 			off = ranges * 8;
2731 
2732 			buf[off + 0] = lba & 0xff;
2733 			buf[off + 1] = (lba >> 8) & 0xff;
2734 			buf[off + 2] = (lba >> 16) & 0xff;
2735 			buf[off + 3] = (lba >> 24) & 0xff;
2736 			buf[off + 4] = (lba >> 32) & 0xff;
2737 			buf[off + 5] = (lba >> 40) & 0xff;
2738 			buf[off + 6] = c & 0xff;
2739 			buf[off + 7] = (c >> 8) & 0xff;
2740 			lba += c;
2741 			ranges++;
2742 			count -= c;
2743 			lastcount = c;
2744 			if (count != 0 && ranges == softc->trim_max_ranges) {
2745 				xpt_print(periph->path,
2746 				    "%s issuing short delete %ld > %ld\n",
2747 				    da_delete_method_desc[softc->delete_method],
2748 				    requestcount,
2749 				    (softc->trim_max_ranges - ranges) *
2750 				    ATA_DSM_RANGE_MAX);
2751 				break;
2752 			}
2753 		}
2754 		lastlba = lba;
2755 		bp1 = bioq_first(&softc->delete_queue);
2756 		if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
2757 		    (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
2758 			break;
2759 	} while (1);
2760 
2761 	block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
2762 	scsi_ata_trim(&ccb->csio,
2763 		      /*retries*/da_retry_count,
2764 		      /*cbfcnp*/dadone,
2765 		      /*tag_action*/MSG_SIMPLE_Q_TAG,
2766 		      block_count,
2767 		      /*data_ptr*/buf,
2768 		      /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2769 		      /*sense_len*/SSD_FULL_SIZE,
2770 		      da_default_timeout * 1000);
2771 	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2772 	ccb->ccb_h.flags |= CAM_UNLOCKED;
2773 }
2774 
2775 /*
2776  * We calculate ws_max_blks here based off d_delmaxsize instead
2777  * of using softc->ws_max_blks as it is absolute max for the
2778  * device not the protocol max which may well be lower.
2779  */
2780 static void
2781 da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2782 {
2783 	struct da_softc *softc;
2784 	struct bio *bp1;
2785 	uint64_t ws_max_blks;
2786 	uint64_t lba;
2787 	uint64_t count; /* forward compat with WS32 */
2788 
2789 	softc = (struct da_softc *)periph->softc;
2790 	ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2791 	softc->delete_running = 1;
2792 	lba = bp->bio_pblkno;
2793 	count = 0;
2794 	bp1 = bp;
2795 	do {
2796 		bioq_remove(&softc->delete_queue, bp1);
2797 		if (bp1 != bp)
2798 			bioq_insert_tail(&softc->delete_run_queue, bp1);
2799 		count += bp1->bio_bcount / softc->params.secsize;
2800 		if (count > ws_max_blks) {
2801 			xpt_print(periph->path,
2802 			    "%s issuing short delete %ld > %ld\n",
2803 			    da_delete_method_desc[softc->delete_method],
2804 			    count, ws_max_blks);
2805 			count = omin(count, ws_max_blks);
2806 			break;
2807 		}
2808 		bp1 = bioq_first(&softc->delete_queue);
2809 		if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
2810 		    count + bp1->bio_bcount /
2811 		    softc->params.secsize > ws_max_blks)
2812 			break;
2813 	} while (1);
2814 
2815 	scsi_write_same(&ccb->csio,
2816 			/*retries*/da_retry_count,
2817 			/*cbfcnp*/dadone,
2818 			/*tag_action*/MSG_SIMPLE_Q_TAG,
2819 			/*byte2*/softc->delete_method ==
2820 			    DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2821 			softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
2822 			/*lba*/lba,
2823 			/*block_count*/count,
2824 			/*data_ptr*/ __DECONST(void *, zero_region),
2825 			/*dxfer_len*/ softc->params.secsize,
2826 			/*sense_len*/SSD_FULL_SIZE,
2827 			da_default_timeout * 1000);
2828 	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2829 	ccb->ccb_h.flags |= CAM_UNLOCKED;
2830 }
2831 
2832 static int
2833 cmd6workaround(union ccb *ccb)
2834 {
2835 	struct scsi_rw_6 cmd6;
2836 	struct scsi_rw_10 *cmd10;
2837 	struct da_softc *softc;
2838 	u_int8_t *cdb;
2839 	struct bio *bp;
2840 	int frozen;
2841 
2842 	cdb = ccb->csio.cdb_io.cdb_bytes;
2843 	softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2844 
2845 	if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2846 		da_delete_methods old_method = softc->delete_method;
2847 
2848 		/*
2849 		 * Typically there are two reasons for failure here
2850 		 * 1. Delete method was detected as supported but isn't
2851 		 * 2. Delete failed due to invalid params e.g. too big
2852 		 *
2853 		 * While we will attempt to choose an alternative delete method
2854 		 * this may result in short deletes if the existing delete
2855 		 * requests from geom are big for the new method choosen.
2856 		 *
2857 		 * This method assumes that the error which triggered this
2858 		 * will not retry the io otherwise a panic will occur
2859 		 */
2860 		dadeleteflag(softc, old_method, 0);
2861 		dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2862 		if (softc->delete_method == DA_DELETE_DISABLE)
2863 			xpt_print(ccb->ccb_h.path,
2864 				  "%s failed, disabling BIO_DELETE\n",
2865 				  da_delete_method_desc[old_method]);
2866 		else
2867 			xpt_print(ccb->ccb_h.path,
2868 				  "%s failed, switching to %s BIO_DELETE\n",
2869 				  da_delete_method_desc[old_method],
2870 				  da_delete_method_desc[softc->delete_method]);
2871 
2872 		while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
2873 			bioq_disksort(&softc->delete_queue, bp);
2874 		bioq_disksort(&softc->delete_queue,
2875 		    (struct bio *)ccb->ccb_h.ccb_bp);
2876 		ccb->ccb_h.ccb_bp = NULL;
2877 		return (0);
2878 	}
2879 
2880 	/* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
2881 	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2882 	    (*cdb == PREVENT_ALLOW) &&
2883 	    (softc->quirks & DA_Q_NO_PREVENT) == 0) {
2884 		if (bootverbose)
2885 			xpt_print(ccb->ccb_h.path,
2886 			    "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
2887 		softc->quirks |= DA_Q_NO_PREVENT;
2888 		return (0);
2889 	}
2890 
2891 	/* Detect unsupported SYNCHRONIZE CACHE(10). */
2892 	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2893 	    (*cdb == SYNCHRONIZE_CACHE) &&
2894 	    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
2895 		if (bootverbose)
2896 			xpt_print(ccb->ccb_h.path,
2897 			    "SYNCHRONIZE CACHE(10) not supported.\n");
2898 		softc->quirks |= DA_Q_NO_SYNC_CACHE;
2899 		softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
2900 		return (0);
2901 	}
2902 
2903 	/* Translation only possible if CDB is an array and cmd is R/W6 */
2904 	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2905 	    (*cdb != READ_6 && *cdb != WRITE_6))
2906 		return 0;
2907 
2908 	xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2909 	    "increasing minimum_cmd_size to 10.\n");
2910  	softc->minimum_cmd_size = 10;
2911 
2912 	bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2913 	cmd10 = (struct scsi_rw_10 *)cdb;
2914 	cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2915 	cmd10->byte2 = 0;
2916 	scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2917 	cmd10->reserved = 0;
2918 	scsi_ulto2b(cmd6.length, cmd10->length);
2919 	cmd10->control = cmd6.control;
2920 	ccb->csio.cdb_len = sizeof(*cmd10);
2921 
2922 	/* Requeue request, unfreezing queue if necessary */
2923 	frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2924  	ccb->ccb_h.status = CAM_REQUEUE_REQ;
2925 	xpt_action(ccb);
2926 	if (frozen) {
2927 		cam_release_devq(ccb->ccb_h.path,
2928 				 /*relsim_flags*/0,
2929 				 /*reduction*/0,
2930 				 /*timeout*/0,
2931 				 /*getcount_only*/0);
2932 	}
2933 	return (ERESTART);
2934 }
2935 
2936 static void
2937 dadone(struct cam_periph *periph, union ccb *done_ccb)
2938 {
2939 	struct da_softc *softc;
2940 	struct ccb_scsiio *csio;
2941 	u_int32_t  priority;
2942 	da_ccb_state state;
2943 
2944 	softc = (struct da_softc *)periph->softc;
2945 	priority = done_ccb->ccb_h.pinfo.priority;
2946 
2947 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2948 
2949 	csio = &done_ccb->csio;
2950 	state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
2951 	switch (state) {
2952 	case DA_CCB_BUFFER_IO:
2953 	case DA_CCB_DELETE:
2954 	{
2955 		struct bio *bp, *bp1;
2956 
2957 		cam_periph_lock(periph);
2958 		bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2959 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2960 			int error;
2961 			int sf;
2962 
2963 			if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2964 				sf = SF_RETRY_UA;
2965 			else
2966 				sf = 0;
2967 
2968 			error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2969 			if (error == ERESTART) {
2970 				/*
2971 				 * A retry was scheduled, so
2972 				 * just return.
2973 				 */
2974 				cam_periph_unlock(periph);
2975 				return;
2976 			}
2977 			bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2978 			if (error != 0) {
2979 				int queued_error;
2980 
2981 				/*
2982 				 * return all queued I/O with EIO, so that
2983 				 * the client can retry these I/Os in the
2984 				 * proper order should it attempt to recover.
2985 				 */
2986 				queued_error = EIO;
2987 
2988 				if (error == ENXIO
2989 				 && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2990 					/*
2991 					 * Catastrophic error.  Mark our pack as
2992 					 * invalid.
2993 					 */
2994 					/*
2995 					 * XXX See if this is really a media
2996 					 * XXX change first?
2997 					 */
2998 					xpt_print(periph->path,
2999 					    "Invalidating pack\n");
3000 					softc->flags |= DA_FLAG_PACK_INVALID;
3001 					queued_error = ENXIO;
3002 				}
3003 				bioq_flush(&softc->bio_queue, NULL,
3004 					   queued_error);
3005 				if (bp != NULL) {
3006 					bp->bio_error = error;
3007 					bp->bio_resid = bp->bio_bcount;
3008 					bp->bio_flags |= BIO_ERROR;
3009 				}
3010 			} else if (bp != NULL) {
3011 				if (state == DA_CCB_DELETE)
3012 					bp->bio_resid = 0;
3013 				else
3014 					bp->bio_resid = csio->resid;
3015 				bp->bio_error = 0;
3016 				if (bp->bio_resid != 0)
3017 					bp->bio_flags |= BIO_ERROR;
3018 			}
3019 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3020 				cam_release_devq(done_ccb->ccb_h.path,
3021 						 /*relsim_flags*/0,
3022 						 /*reduction*/0,
3023 						 /*timeout*/0,
3024 						 /*getcount_only*/0);
3025 		} else if (bp != NULL) {
3026 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3027 				panic("REQ_CMP with QFRZN");
3028 			if (state == DA_CCB_DELETE)
3029 				bp->bio_resid = 0;
3030 			else
3031 				bp->bio_resid = csio->resid;
3032 			if (csio->resid > 0)
3033 				bp->bio_flags |= BIO_ERROR;
3034 			if (softc->error_inject != 0) {
3035 				bp->bio_error = softc->error_inject;
3036 				bp->bio_resid = bp->bio_bcount;
3037 				bp->bio_flags |= BIO_ERROR;
3038 				softc->error_inject = 0;
3039 			}
3040 		}
3041 
3042 		LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
3043 		if (LIST_EMPTY(&softc->pending_ccbs))
3044 			softc->flags |= DA_FLAG_WAS_OTAG;
3045 
3046 		xpt_release_ccb(done_ccb);
3047 		if (state == DA_CCB_DELETE) {
3048 			TAILQ_HEAD(, bio) queue;
3049 
3050 			TAILQ_INIT(&queue);
3051 			TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
3052 			softc->delete_run_queue.insert_point = NULL;
3053 			/*
3054 			 * Normally, the xpt_release_ccb() above would make sure
3055 			 * that when we have more work to do, that work would
3056 			 * get kicked off. However, we specifically keep
3057 			 * delete_running set to 0 before the call above to
3058 			 * allow other I/O to progress when many BIO_DELETE
3059 			 * requests are pushed down. We set delete_running to 0
3060 			 * and call daschedule again so that we don't stall if
3061 			 * there are no other I/Os pending apart from BIO_DELETEs.
3062 			 */
3063 			softc->delete_running = 0;
3064 			daschedule(periph);
3065 			cam_periph_unlock(periph);
3066 			while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
3067 				TAILQ_REMOVE(&queue, bp1, bio_queue);
3068 				bp1->bio_error = bp->bio_error;
3069 				if (bp->bio_flags & BIO_ERROR) {
3070 					bp1->bio_flags |= BIO_ERROR;
3071 					bp1->bio_resid = bp1->bio_bcount;
3072 				} else
3073 					bp1->bio_resid = 0;
3074 				biodone(bp1);
3075 			}
3076 		} else
3077 			cam_periph_unlock(periph);
3078 		if (bp != NULL)
3079 			biodone(bp);
3080 		return;
3081 	}
3082 	case DA_CCB_PROBE_RC:
3083 	case DA_CCB_PROBE_RC16:
3084 	{
3085 		struct	   scsi_read_capacity_data *rdcap;
3086 		struct     scsi_read_capacity_data_long *rcaplong;
3087 		char	   announce_buf[80];
3088 		int	   lbp;
3089 
3090 		lbp = 0;
3091 		rdcap = NULL;
3092 		rcaplong = NULL;
3093 		if (state == DA_CCB_PROBE_RC)
3094 			rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
3095 		else
3096 			rcaplong = (struct scsi_read_capacity_data_long *)
3097 				csio->data_ptr;
3098 
3099 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3100 			struct disk_params *dp;
3101 			uint32_t block_size;
3102 			uint64_t maxsector;
3103 			u_int lalba;	/* Lowest aligned LBA. */
3104 
3105 			if (state == DA_CCB_PROBE_RC) {
3106 				block_size = scsi_4btoul(rdcap->length);
3107 				maxsector = scsi_4btoul(rdcap->addr);
3108 				lalba = 0;
3109 
3110 				/*
3111 				 * According to SBC-2, if the standard 10
3112 				 * byte READ CAPACITY command returns 2^32,
3113 				 * we should issue the 16 byte version of
3114 				 * the command, since the device in question
3115 				 * has more sectors than can be represented
3116 				 * with the short version of the command.
3117 				 */
3118 				if (maxsector == 0xffffffff) {
3119 					free(rdcap, M_SCSIDA);
3120 					xpt_release_ccb(done_ccb);
3121 					softc->state = DA_STATE_PROBE_RC16;
3122 					xpt_schedule(periph, priority);
3123 					return;
3124 				}
3125 			} else {
3126 				block_size = scsi_4btoul(rcaplong->length);
3127 				maxsector = scsi_8btou64(rcaplong->addr);
3128 				lalba = scsi_2btoul(rcaplong->lalba_lbp);
3129 			}
3130 
3131 			/*
3132 			 * Because GEOM code just will panic us if we
3133 			 * give them an 'illegal' value we'll avoid that
3134 			 * here.
3135 			 */
3136 			if (block_size == 0) {
3137 				block_size = 512;
3138 				if (maxsector == 0)
3139 					maxsector = -1;
3140 			}
3141 			if (block_size >= MAXPHYS) {
3142 				xpt_print(periph->path,
3143 				    "unsupportable block size %ju\n",
3144 				    (uintmax_t) block_size);
3145 				announce_buf[0] = '\0';
3146 				cam_periph_invalidate(periph);
3147 			} else {
3148 				/*
3149 				 * We pass rcaplong into dasetgeom(),
3150 				 * because it will only use it if it is
3151 				 * non-NULL.
3152 				 */
3153 				dasetgeom(periph, block_size, maxsector,
3154 					  rcaplong, sizeof(*rcaplong));
3155 				lbp = (lalba & SRC16_LBPME_A);
3156 				dp = &softc->params;
3157 				snprintf(announce_buf, sizeof(announce_buf),
3158 				    "%juMB (%ju %u byte sectors)",
3159 				    ((uintmax_t)dp->secsize * dp->sectors) /
3160 				     (1024 * 1024),
3161 				    (uintmax_t)dp->sectors, dp->secsize);
3162 			}
3163 		} else {
3164 			int	error;
3165 
3166 			announce_buf[0] = '\0';
3167 
3168 			/*
3169 			 * Retry any UNIT ATTENTION type errors.  They
3170 			 * are expected at boot.
3171 			 */
3172 			error = daerror(done_ccb, CAM_RETRY_SELTO,
3173 					SF_RETRY_UA|SF_NO_PRINT);
3174 			if (error == ERESTART) {
3175 				/*
3176 				 * A retry was scheuled, so
3177 				 * just return.
3178 				 */
3179 				return;
3180 			} else if (error != 0) {
3181 				int asc, ascq;
3182 				int sense_key, error_code;
3183 				int have_sense;
3184 				cam_status status;
3185 				struct ccb_getdev cgd;
3186 
3187 				/* Don't wedge this device's queue */
3188 				status = done_ccb->ccb_h.status;
3189 				if ((status & CAM_DEV_QFRZN) != 0)
3190 					cam_release_devq(done_ccb->ccb_h.path,
3191 							 /*relsim_flags*/0,
3192 							 /*reduction*/0,
3193 							 /*timeout*/0,
3194 							 /*getcount_only*/0);
3195 
3196 
3197 				xpt_setup_ccb(&cgd.ccb_h,
3198 					      done_ccb->ccb_h.path,
3199 					      CAM_PRIORITY_NORMAL);
3200 				cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3201 				xpt_action((union ccb *)&cgd);
3202 
3203 				if (scsi_extract_sense_ccb(done_ccb,
3204 				    &error_code, &sense_key, &asc, &ascq))
3205 					have_sense = TRUE;
3206 				else
3207 					have_sense = FALSE;
3208 
3209 				/*
3210 				 * If we tried READ CAPACITY(16) and failed,
3211 				 * fallback to READ CAPACITY(10).
3212 				 */
3213 				if ((state == DA_CCB_PROBE_RC16) &&
3214 				    (softc->flags & DA_FLAG_CAN_RC16) &&
3215 				    (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3216 					CAM_REQ_INVALID) ||
3217 				     ((have_sense) &&
3218 				      (error_code == SSD_CURRENT_ERROR) &&
3219 				      (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3220 					softc->flags &= ~DA_FLAG_CAN_RC16;
3221 					free(rdcap, M_SCSIDA);
3222 					xpt_release_ccb(done_ccb);
3223 					softc->state = DA_STATE_PROBE_RC;
3224 					xpt_schedule(periph, priority);
3225 					return;
3226 				}
3227 
3228 				/*
3229 				 * Attach to anything that claims to be a
3230 				 * direct access or optical disk device,
3231 				 * as long as it doesn't return a "Logical
3232 				 * unit not supported" (0x25) error.
3233 				 */
3234 				if ((have_sense) && (asc != 0x25)
3235 				 && (error_code == SSD_CURRENT_ERROR)) {
3236 					const char *sense_key_desc;
3237 					const char *asc_desc;
3238 
3239 					dasetgeom(periph, 512, -1, NULL, 0);
3240 					scsi_sense_desc(sense_key, asc, ascq,
3241 							&cgd.inq_data,
3242 							&sense_key_desc,
3243 							&asc_desc);
3244 					snprintf(announce_buf,
3245 					    sizeof(announce_buf),
3246 						"Attempt to query device "
3247 						"size failed: %s, %s",
3248 						sense_key_desc,
3249 						asc_desc);
3250 				} else {
3251 					if (have_sense)
3252 						scsi_sense_print(
3253 							&done_ccb->csio);
3254 					else {
3255 						xpt_print(periph->path,
3256 						    "got CAM status %#x\n",
3257 						    done_ccb->ccb_h.status);
3258 					}
3259 
3260 					xpt_print(periph->path, "fatal error, "
3261 					    "failed to attach to device\n");
3262 
3263 					/*
3264 					 * Free up resources.
3265 					 */
3266 					cam_periph_invalidate(periph);
3267 				}
3268 			}
3269 		}
3270 		free(csio->data_ptr, M_SCSIDA);
3271 		if (announce_buf[0] != '\0' &&
3272 		    ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
3273 			/*
3274 			 * Create our sysctl variables, now that we know
3275 			 * we have successfully attached.
3276 			 */
3277 			/* increase the refcount */
3278 			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3279 				taskqueue_enqueue(taskqueue_thread,
3280 						  &softc->sysctl_task);
3281 				xpt_announce_periph(periph, announce_buf);
3282 				xpt_announce_quirks(periph, softc->quirks,
3283 				    DA_Q_BIT_STRING);
3284 			} else {
3285 				xpt_print(periph->path, "fatal error, "
3286 				    "could not acquire reference count\n");
3287 			}
3288 		}
3289 
3290 		/* We already probed the device. */
3291 		if (softc->flags & DA_FLAG_PROBED) {
3292 			daprobedone(periph, done_ccb);
3293 			return;
3294 		}
3295 
3296 		/* Ensure re-probe doesn't see old delete. */
3297 		softc->delete_available = 0;
3298 		dadeleteflag(softc, DA_DELETE_ZERO, 1);
3299 		if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3300 			/*
3301 			 * Based on older SBC-3 spec revisions
3302 			 * any of the UNMAP methods "may" be
3303 			 * available via LBP given this flag so
3304 			 * we flag all of them as availble and
3305 			 * then remove those which further
3306 			 * probes confirm aren't available
3307 			 * later.
3308 			 *
3309 			 * We could also check readcap(16) p_type
3310 			 * flag to exclude one or more invalid
3311 			 * write same (X) types here
3312 			 */
3313 			dadeleteflag(softc, DA_DELETE_WS16, 1);
3314 			dadeleteflag(softc, DA_DELETE_WS10, 1);
3315 			dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3316 
3317 			xpt_release_ccb(done_ccb);
3318 			softc->state = DA_STATE_PROBE_LBP;
3319 			xpt_schedule(periph, priority);
3320 			return;
3321 		}
3322 
3323 		xpt_release_ccb(done_ccb);
3324 		softc->state = DA_STATE_PROBE_BDC;
3325 		xpt_schedule(periph, priority);
3326 		return;
3327 	}
3328 	case DA_CCB_PROBE_LBP:
3329 	{
3330 		struct scsi_vpd_logical_block_prov *lbp;
3331 
3332 		lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3333 
3334 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3335 			/*
3336 			 * T10/1799-D Revision 31 states at least one of these
3337 			 * must be supported but we don't currently enforce this.
3338 			 */
3339 			dadeleteflag(softc, DA_DELETE_WS16,
3340 				     (lbp->flags & SVPD_LBP_WS16));
3341 			dadeleteflag(softc, DA_DELETE_WS10,
3342 				     (lbp->flags & SVPD_LBP_WS10));
3343 			dadeleteflag(softc, DA_DELETE_UNMAP,
3344 				     (lbp->flags & SVPD_LBP_UNMAP));
3345 		} else {
3346 			int error;
3347 			error = daerror(done_ccb, CAM_RETRY_SELTO,
3348 					SF_RETRY_UA|SF_NO_PRINT);
3349 			if (error == ERESTART)
3350 				return;
3351 			else if (error != 0) {
3352 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3353 					/* Don't wedge this device's queue */
3354 					cam_release_devq(done_ccb->ccb_h.path,
3355 							 /*relsim_flags*/0,
3356 							 /*reduction*/0,
3357 							 /*timeout*/0,
3358 							 /*getcount_only*/0);
3359 				}
3360 
3361 				/*
3362 				 * Failure indicates we don't support any SBC-3
3363 				 * delete methods with UNMAP
3364 				 */
3365 			}
3366 		}
3367 
3368 		free(lbp, M_SCSIDA);
3369 		xpt_release_ccb(done_ccb);
3370 		softc->state = DA_STATE_PROBE_BLK_LIMITS;
3371 		xpt_schedule(periph, priority);
3372 		return;
3373 	}
3374 	case DA_CCB_PROBE_BLK_LIMITS:
3375 	{
3376 		struct scsi_vpd_block_limits *block_limits;
3377 
3378 		block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3379 
3380 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3381 			uint32_t max_txfer_len = scsi_4btoul(
3382 				block_limits->max_txfer_len);
3383 			uint32_t max_unmap_lba_cnt = scsi_4btoul(
3384 				block_limits->max_unmap_lba_cnt);
3385 			uint32_t max_unmap_blk_cnt = scsi_4btoul(
3386 				block_limits->max_unmap_blk_cnt);
3387 			uint64_t ws_max_blks = scsi_8btou64(
3388 				block_limits->max_write_same_length);
3389 
3390 			if (max_txfer_len != 0) {
3391 				softc->disk->d_maxsize = MIN(softc->maxio,
3392 				    (off_t)max_txfer_len * softc->params.secsize);
3393 			}
3394 
3395 			/*
3396 			 * We should already support UNMAP but we check lba
3397 			 * and block count to be sure
3398 			 */
3399 			if (max_unmap_lba_cnt != 0x00L &&
3400 			    max_unmap_blk_cnt != 0x00L) {
3401 				softc->unmap_max_lba = max_unmap_lba_cnt;
3402 				softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3403 					UNMAP_MAX_RANGES);
3404 			} else {
3405 				/*
3406 				 * Unexpected UNMAP limits which means the
3407 				 * device doesn't actually support UNMAP
3408 				 */
3409 				dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3410 			}
3411 
3412 			if (ws_max_blks != 0x00L)
3413 				softc->ws_max_blks = ws_max_blks;
3414 		} else {
3415 			int error;
3416 			error = daerror(done_ccb, CAM_RETRY_SELTO,
3417 					SF_RETRY_UA|SF_NO_PRINT);
3418 			if (error == ERESTART)
3419 				return;
3420 			else if (error != 0) {
3421 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3422 					/* Don't wedge this device's queue */
3423 					cam_release_devq(done_ccb->ccb_h.path,
3424 							 /*relsim_flags*/0,
3425 							 /*reduction*/0,
3426 							 /*timeout*/0,
3427 							 /*getcount_only*/0);
3428 				}
3429 
3430 				/*
3431 				 * Failure here doesn't mean UNMAP is not
3432 				 * supported as this is an optional page.
3433 				 */
3434 				softc->unmap_max_lba = 1;
3435 				softc->unmap_max_ranges = 1;
3436 			}
3437 		}
3438 
3439 		free(block_limits, M_SCSIDA);
3440 		xpt_release_ccb(done_ccb);
3441 		softc->state = DA_STATE_PROBE_BDC;
3442 		xpt_schedule(periph, priority);
3443 		return;
3444 	}
3445 	case DA_CCB_PROBE_BDC:
3446 	{
3447 		struct scsi_vpd_block_characteristics *bdc;
3448 
3449 		bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3450 
3451 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3452 			/*
3453 			 * Disable queue sorting for non-rotational media
3454 			 * by default.
3455 			 */
3456 			u_int16_t old_rate = softc->disk->d_rotation_rate;
3457 
3458 			softc->disk->d_rotation_rate =
3459 				scsi_2btoul(bdc->medium_rotation_rate);
3460 			if (softc->disk->d_rotation_rate ==
3461 			    SVPD_BDC_RATE_NON_ROTATING) {
3462 				softc->sort_io_queue = 0;
3463 			}
3464 			if (softc->disk->d_rotation_rate != old_rate) {
3465 				disk_attr_changed(softc->disk,
3466 				    "GEOM::rotation_rate", M_NOWAIT);
3467 			}
3468 		} else {
3469 			int error;
3470 			error = daerror(done_ccb, CAM_RETRY_SELTO,
3471 					SF_RETRY_UA|SF_NO_PRINT);
3472 			if (error == ERESTART)
3473 				return;
3474 			else if (error != 0) {
3475 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3476 					/* Don't wedge this device's queue */
3477 					cam_release_devq(done_ccb->ccb_h.path,
3478 							 /*relsim_flags*/0,
3479 							 /*reduction*/0,
3480 							 /*timeout*/0,
3481 							 /*getcount_only*/0);
3482 				}
3483 			}
3484 		}
3485 
3486 		free(bdc, M_SCSIDA);
3487 		xpt_release_ccb(done_ccb);
3488 		softc->state = DA_STATE_PROBE_ATA;
3489 		xpt_schedule(periph, priority);
3490 		return;
3491 	}
3492 	case DA_CCB_PROBE_ATA:
3493 	{
3494 		int i;
3495 		struct ata_params *ata_params;
3496 		int16_t *ptr;
3497 
3498 		ata_params = (struct ata_params *)csio->data_ptr;
3499 		ptr = (uint16_t *)ata_params;
3500 
3501 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3502 			uint16_t old_rate;
3503 
3504 			for (i = 0; i < sizeof(*ata_params) / 2; i++)
3505 				ptr[i] = le16toh(ptr[i]);
3506 			if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
3507 			    (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3508 				dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3509 				if (ata_params->max_dsm_blocks != 0)
3510 					softc->trim_max_ranges = min(
3511 					  softc->trim_max_ranges,
3512 					  ata_params->max_dsm_blocks *
3513 					  ATA_DSM_BLK_RANGES);
3514 			}
3515 			/*
3516 			 * Disable queue sorting for non-rotational media
3517 			 * by default.
3518 			 */
3519 			old_rate = softc->disk->d_rotation_rate;
3520 			softc->disk->d_rotation_rate =
3521 			    ata_params->media_rotation_rate;
3522 			if (softc->disk->d_rotation_rate ==
3523 			    ATA_RATE_NON_ROTATING) {
3524 				softc->sort_io_queue = 0;
3525 			}
3526 
3527 			if (softc->disk->d_rotation_rate != old_rate) {
3528 				disk_attr_changed(softc->disk,
3529 				    "GEOM::rotation_rate", M_NOWAIT);
3530 			}
3531 		} else {
3532 			int error;
3533 			error = daerror(done_ccb, CAM_RETRY_SELTO,
3534 					SF_RETRY_UA|SF_NO_PRINT);
3535 			if (error == ERESTART)
3536 				return;
3537 			else if (error != 0) {
3538 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3539 					/* Don't wedge this device's queue */
3540 					cam_release_devq(done_ccb->ccb_h.path,
3541 							 /*relsim_flags*/0,
3542 							 /*reduction*/0,
3543 							 /*timeout*/0,
3544 							 /*getcount_only*/0);
3545 				}
3546 			}
3547 		}
3548 
3549 		free(ata_params, M_SCSIDA);
3550 		daprobedone(periph, done_ccb);
3551 		return;
3552 	}
3553 	case DA_CCB_DUMP:
3554 		/* No-op.  We're polling */
3555 		return;
3556 	case DA_CCB_TUR:
3557 	{
3558 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3559 
3560 			if (daerror(done_ccb, CAM_RETRY_SELTO,
3561 			    SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3562 			    ERESTART)
3563 				return;
3564 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3565 				cam_release_devq(done_ccb->ccb_h.path,
3566 						 /*relsim_flags*/0,
3567 						 /*reduction*/0,
3568 						 /*timeout*/0,
3569 						 /*getcount_only*/0);
3570 		}
3571 		xpt_release_ccb(done_ccb);
3572 		cam_periph_release_locked(periph);
3573 		return;
3574 	}
3575 	default:
3576 		break;
3577 	}
3578 	xpt_release_ccb(done_ccb);
3579 }
3580 
3581 static void
3582 dareprobe(struct cam_periph *periph)
3583 {
3584 	struct da_softc	  *softc;
3585 	cam_status status;
3586 
3587 	softc = (struct da_softc *)periph->softc;
3588 
3589 	/* Probe in progress; don't interfere. */
3590 	if (softc->state != DA_STATE_NORMAL)
3591 		return;
3592 
3593 	status = cam_periph_acquire(periph);
3594 	KASSERT(status == CAM_REQ_CMP,
3595 	    ("dareprobe: cam_periph_acquire failed"));
3596 
3597 	if (softc->flags & DA_FLAG_CAN_RC16)
3598 		softc->state = DA_STATE_PROBE_RC16;
3599 	else
3600 		softc->state = DA_STATE_PROBE_RC;
3601 
3602 	xpt_schedule(periph, CAM_PRIORITY_DEV);
3603 }
3604 
3605 static int
3606 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3607 {
3608 	struct da_softc	  *softc;
3609 	struct cam_periph *periph;
3610 	int error, error_code, sense_key, asc, ascq;
3611 
3612 	periph = xpt_path_periph(ccb->ccb_h.path);
3613 	softc = (struct da_softc *)periph->softc;
3614 
3615  	/*
3616 	 * Automatically detect devices that do not support
3617  	 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3618  	 */
3619 	error = 0;
3620 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3621 		error = cmd6workaround(ccb);
3622 	} else if (scsi_extract_sense_ccb(ccb,
3623 	    &error_code, &sense_key, &asc, &ascq)) {
3624 		if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3625  			error = cmd6workaround(ccb);
3626 		/*
3627 		 * If the target replied with CAPACITY DATA HAS CHANGED UA,
3628 		 * query the capacity and notify upper layers.
3629 		 */
3630 		else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3631 		    asc == 0x2A && ascq == 0x09) {
3632 			xpt_print(periph->path, "Capacity data has changed\n");
3633 			softc->flags &= ~DA_FLAG_PROBED;
3634 			dareprobe(periph);
3635 			sense_flags |= SF_NO_PRINT;
3636 		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3637 		    asc == 0x28 && ascq == 0x00) {
3638 			softc->flags &= ~DA_FLAG_PROBED;
3639 			disk_media_changed(softc->disk, M_NOWAIT);
3640 		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3641 		    asc == 0x3F && ascq == 0x03) {
3642 			xpt_print(periph->path, "INQUIRY data has changed\n");
3643 			softc->flags &= ~DA_FLAG_PROBED;
3644 			dareprobe(periph);
3645 			sense_flags |= SF_NO_PRINT;
3646 		} else if (sense_key == SSD_KEY_NOT_READY &&
3647 		    asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
3648 			softc->flags |= DA_FLAG_PACK_INVALID;
3649 			disk_media_gone(softc->disk, M_NOWAIT);
3650 		}
3651 	}
3652 	if (error == ERESTART)
3653 		return (ERESTART);
3654 
3655 	/*
3656 	 * XXX
3657 	 * Until we have a better way of doing pack validation,
3658 	 * don't treat UAs as errors.
3659 	 */
3660 	sense_flags |= SF_RETRY_UA;
3661 
3662 	if (softc->quirks & DA_Q_RETRY_BUSY)
3663 		sense_flags |= SF_RETRY_BUSY;
3664 	return(cam_periph_error(ccb, cam_flags, sense_flags,
3665 				&softc->saved_ccb));
3666 }
3667 
3668 static void
3669 damediapoll(void *arg)
3670 {
3671 	struct cam_periph *periph = arg;
3672 	struct da_softc *softc = periph->softc;
3673 
3674 	if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
3675 		if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3676 			softc->tur = 1;
3677 			daschedule(periph);
3678 		}
3679 	}
3680 	/* Queue us up again */
3681 	if (da_poll_period != 0)
3682 		callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3683 }
3684 
3685 static void
3686 daprevent(struct cam_periph *periph, int action)
3687 {
3688 	struct	da_softc *softc;
3689 	union	ccb *ccb;
3690 	int	error;
3691 
3692 	softc = (struct da_softc *)periph->softc;
3693 
3694 	if (((action == PR_ALLOW)
3695 	  && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3696 	 || ((action == PR_PREVENT)
3697 	  && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3698 		return;
3699 	}
3700 
3701 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3702 
3703 	scsi_prevent(&ccb->csio,
3704 		     /*retries*/1,
3705 		     /*cbcfp*/dadone,
3706 		     MSG_SIMPLE_Q_TAG,
3707 		     action,
3708 		     SSD_FULL_SIZE,
3709 		     5000);
3710 
3711 	error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3712 	    SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
3713 
3714 	if (error == 0) {
3715 		if (action == PR_ALLOW)
3716 			softc->flags &= ~DA_FLAG_PACK_LOCKED;
3717 		else
3718 			softc->flags |= DA_FLAG_PACK_LOCKED;
3719 	}
3720 
3721 	xpt_release_ccb(ccb);
3722 }
3723 
3724 static void
3725 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3726 	  struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3727 {
3728 	struct ccb_calc_geometry ccg;
3729 	struct da_softc *softc;
3730 	struct disk_params *dp;
3731 	u_int lbppbe, lalba;
3732 	int error;
3733 
3734 	softc = (struct da_softc *)periph->softc;
3735 
3736 	dp = &softc->params;
3737 	dp->secsize = block_len;
3738 	dp->sectors = maxsector + 1;
3739 	if (rcaplong != NULL) {
3740 		lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3741 		lalba = scsi_2btoul(rcaplong->lalba_lbp);
3742 		lalba &= SRC16_LALBA_A;
3743 	} else {
3744 		lbppbe = 0;
3745 		lalba = 0;
3746 	}
3747 
3748 	if (lbppbe > 0) {
3749 		dp->stripesize = block_len << lbppbe;
3750 		dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3751 		    dp->stripesize;
3752 	} else if (softc->quirks & DA_Q_4K) {
3753 		dp->stripesize = 4096;
3754 		dp->stripeoffset = 0;
3755 	} else {
3756 		dp->stripesize = 0;
3757 		dp->stripeoffset = 0;
3758 	}
3759 	/*
3760 	 * Have the controller provide us with a geometry
3761 	 * for this disk.  The only time the geometry
3762 	 * matters is when we boot and the controller
3763 	 * is the only one knowledgeable enough to come
3764 	 * up with something that will make this a bootable
3765 	 * device.
3766 	 */
3767 	xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3768 	ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3769 	ccg.block_size = dp->secsize;
3770 	ccg.volume_size = dp->sectors;
3771 	ccg.heads = 0;
3772 	ccg.secs_per_track = 0;
3773 	ccg.cylinders = 0;
3774 	xpt_action((union ccb*)&ccg);
3775 	if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3776 		/*
3777 		 * We don't know what went wrong here- but just pick
3778 		 * a geometry so we don't have nasty things like divide
3779 		 * by zero.
3780 		 */
3781 		dp->heads = 255;
3782 		dp->secs_per_track = 255;
3783 		dp->cylinders = dp->sectors / (255 * 255);
3784 		if (dp->cylinders == 0) {
3785 			dp->cylinders = 1;
3786 		}
3787 	} else {
3788 		dp->heads = ccg.heads;
3789 		dp->secs_per_track = ccg.secs_per_track;
3790 		dp->cylinders = ccg.cylinders;
3791 	}
3792 
3793 	/*
3794 	 * If the user supplied a read capacity buffer, and if it is
3795 	 * different than the previous buffer, update the data in the EDT.
3796 	 * If it's the same, we don't bother.  This avoids sending an
3797 	 * update every time someone opens this device.
3798 	 */
3799 	if ((rcaplong != NULL)
3800 	 && (bcmp(rcaplong, &softc->rcaplong,
3801 		  min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3802 		struct ccb_dev_advinfo cdai;
3803 
3804 		xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3805 		cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3806 		cdai.buftype = CDAI_TYPE_RCAPLONG;
3807 		cdai.flags = CDAI_FLAG_STORE;
3808 		cdai.bufsiz = rcap_len;
3809 		cdai.buf = (uint8_t *)rcaplong;
3810 		xpt_action((union ccb *)&cdai);
3811 		if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3812 			cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3813 		if (cdai.ccb_h.status != CAM_REQ_CMP) {
3814 			xpt_print(periph->path, "%s: failed to set read "
3815 				  "capacity advinfo\n", __func__);
3816 			/* Use cam_error_print() to decode the status */
3817 			cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3818 					CAM_EPF_ALL);
3819 		} else {
3820 			bcopy(rcaplong, &softc->rcaplong,
3821 			      min(sizeof(softc->rcaplong), rcap_len));
3822 		}
3823 	}
3824 
3825 	softc->disk->d_sectorsize = softc->params.secsize;
3826 	softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3827 	softc->disk->d_stripesize = softc->params.stripesize;
3828 	softc->disk->d_stripeoffset = softc->params.stripeoffset;
3829 	/* XXX: these are not actually "firmware" values, so they may be wrong */
3830 	softc->disk->d_fwsectors = softc->params.secs_per_track;
3831 	softc->disk->d_fwheads = softc->params.heads;
3832 	softc->disk->d_devstat->block_size = softc->params.secsize;
3833 	softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3834 
3835 	error = disk_resize(softc->disk, M_NOWAIT);
3836 	if (error != 0)
3837 		xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
3838 }
3839 
3840 static void
3841 dasendorderedtag(void *arg)
3842 {
3843 	struct da_softc *softc = arg;
3844 
3845 	if (da_send_ordered) {
3846 		if (!LIST_EMPTY(&softc->pending_ccbs)) {
3847 			if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
3848 				softc->flags |= DA_FLAG_NEED_OTAG;
3849 			softc->flags &= ~DA_FLAG_WAS_OTAG;
3850 		}
3851 	}
3852 	/* Queue us up again */
3853 	callout_reset(&softc->sendordered_c,
3854 	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3855 	    dasendorderedtag, softc);
3856 }
3857 
3858 /*
3859  * Step through all DA peripheral drivers, and if the device is still open,
3860  * sync the disk cache to physical media.
3861  */
3862 static void
3863 dashutdown(void * arg, int howto)
3864 {
3865 	struct cam_periph *periph;
3866 	struct da_softc *softc;
3867 	union ccb *ccb;
3868 	int error;
3869 
3870 	CAM_PERIPH_FOREACH(periph, &dadriver) {
3871 		softc = (struct da_softc *)periph->softc;
3872 		if (SCHEDULER_STOPPED()) {
3873 			/* If we paniced with the lock held, do not recurse. */
3874 			if (!cam_periph_owned(periph) &&
3875 			    (softc->flags & DA_FLAG_OPEN)) {
3876 				dadump(softc->disk, NULL, 0, 0, 0);
3877 			}
3878 			continue;
3879 		}
3880 		cam_periph_lock(periph);
3881 
3882 		/*
3883 		 * We only sync the cache if the drive is still open, and
3884 		 * if the drive is capable of it..
3885 		 */
3886 		if (((softc->flags & DA_FLAG_OPEN) == 0)
3887 		 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
3888 			cam_periph_unlock(periph);
3889 			continue;
3890 		}
3891 
3892 		ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3893 		scsi_synchronize_cache(&ccb->csio,
3894 				       /*retries*/0,
3895 				       /*cbfcnp*/dadone,
3896 				       MSG_SIMPLE_Q_TAG,
3897 				       /*begin_lba*/0, /* whole disk */
3898 				       /*lb_count*/0,
3899 				       SSD_FULL_SIZE,
3900 				       60 * 60 * 1000);
3901 
3902 		error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
3903 		    /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
3904 		    softc->disk->d_devstat);
3905 		if (error != 0)
3906 			xpt_print(periph->path, "Synchronize cache failed\n");
3907 		xpt_release_ccb(ccb);
3908 		cam_periph_unlock(periph);
3909 	}
3910 }
3911 
3912 #else /* !_KERNEL */
3913 
3914 /*
3915  * XXX These are only left out of the kernel build to silence warnings.  If,
3916  * for some reason these functions are used in the kernel, the ifdefs should
3917  * be moved so they are included both in the kernel and userland.
3918  */
3919 void
3920 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
3921 		 void (*cbfcnp)(struct cam_periph *, union ccb *),
3922 		 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
3923 		 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3924 		 u_int32_t timeout)
3925 {
3926 	struct scsi_format_unit *scsi_cmd;
3927 
3928 	scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
3929 	scsi_cmd->opcode = FORMAT_UNIT;
3930 	scsi_cmd->byte2 = byte2;
3931 	scsi_ulto2b(ileave, scsi_cmd->interleave);
3932 
3933 	cam_fill_csio(csio,
3934 		      retries,
3935 		      cbfcnp,
3936 		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3937 		      tag_action,
3938 		      data_ptr,
3939 		      dxfer_len,
3940 		      sense_len,
3941 		      sizeof(*scsi_cmd),
3942 		      timeout);
3943 }
3944 
3945 void
3946 scsi_read_defects(struct ccb_scsiio *csio, uint32_t retries,
3947 		  void (*cbfcnp)(struct cam_periph *, union ccb *),
3948 		  uint8_t tag_action, uint8_t list_format,
3949 		  uint32_t addr_desc_index, uint8_t *data_ptr,
3950 		  uint32_t dxfer_len, int minimum_cmd_size,
3951 		  uint8_t sense_len, uint32_t timeout)
3952 {
3953 	uint8_t cdb_len;
3954 
3955 	/*
3956 	 * These conditions allow using the 10 byte command.  Otherwise we
3957 	 * need to use the 12 byte command.
3958 	 */
3959 	if ((minimum_cmd_size <= 10)
3960 	 && (addr_desc_index == 0)
3961 	 && (dxfer_len <= SRDD10_MAX_LENGTH)) {
3962 		struct scsi_read_defect_data_10 *cdb10;
3963 
3964 		cdb10 = (struct scsi_read_defect_data_10 *)
3965 			&csio->cdb_io.cdb_bytes;
3966 
3967 		cdb_len = sizeof(*cdb10);
3968 		bzero(cdb10, cdb_len);
3969                 cdb10->opcode = READ_DEFECT_DATA_10;
3970                 cdb10->format = list_format;
3971                 scsi_ulto2b(dxfer_len, cdb10->alloc_length);
3972 	} else {
3973 		struct scsi_read_defect_data_12 *cdb12;
3974 
3975 		cdb12 = (struct scsi_read_defect_data_12 *)
3976 			&csio->cdb_io.cdb_bytes;
3977 
3978 		cdb_len = sizeof(*cdb12);
3979 		bzero(cdb12, cdb_len);
3980                 cdb12->opcode = READ_DEFECT_DATA_12;
3981                 cdb12->format = list_format;
3982                 scsi_ulto4b(dxfer_len, cdb12->alloc_length);
3983 		scsi_ulto4b(addr_desc_index, cdb12->address_descriptor_index);
3984 	}
3985 
3986 	cam_fill_csio(csio,
3987 		      retries,
3988 		      cbfcnp,
3989 		      /*flags*/ CAM_DIR_IN,
3990 		      tag_action,
3991 		      data_ptr,
3992 		      dxfer_len,
3993 		      sense_len,
3994 		      cdb_len,
3995 		      timeout);
3996 }
3997 
3998 void
3999 scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
4000 	      void (*cbfcnp)(struct cam_periph *, union ccb *),
4001 	      u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
4002 	      u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4003 	      u_int32_t timeout)
4004 {
4005 	struct scsi_sanitize *scsi_cmd;
4006 
4007 	scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
4008 	scsi_cmd->opcode = SANITIZE;
4009 	scsi_cmd->byte2 = byte2;
4010 	scsi_cmd->control = control;
4011 	scsi_ulto2b(dxfer_len, scsi_cmd->length);
4012 
4013 	cam_fill_csio(csio,
4014 		      retries,
4015 		      cbfcnp,
4016 		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
4017 		      tag_action,
4018 		      data_ptr,
4019 		      dxfer_len,
4020 		      sense_len,
4021 		      sizeof(*scsi_cmd),
4022 		      timeout);
4023 }
4024 
4025 #endif /* _KERNEL */
4026