xref: /freebsd/sys/cam/scsi/scsi_da.c (revision eb69d1f144a6fcc765d1b9d44a5ae8082353e70b)
1 /*-
2  * Implementation of SCSI Direct Access Peripheral driver for CAM.
3  *
4  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
5  *
6  * Copyright (c) 1997 Justin T. Gibbs.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions, and the following disclaimer,
14  *    without modification, immediately at the beginning of the file.
15  * 2. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <sys/param.h>
35 
36 #ifdef _KERNEL
37 #include "opt_da.h"
38 #include <sys/systm.h>
39 #include <sys/kernel.h>
40 #include <sys/bio.h>
41 #include <sys/sysctl.h>
42 #include <sys/taskqueue.h>
43 #include <sys/lock.h>
44 #include <sys/mutex.h>
45 #include <sys/conf.h>
46 #include <sys/devicestat.h>
47 #include <sys/eventhandler.h>
48 #include <sys/malloc.h>
49 #include <sys/cons.h>
50 #include <sys/endian.h>
51 #include <sys/proc.h>
52 #include <sys/sbuf.h>
53 #include <geom/geom.h>
54 #include <geom/geom_disk.h>
55 #include <machine/atomic.h>
56 #endif /* _KERNEL */
57 
58 #ifndef _KERNEL
59 #include <stdio.h>
60 #include <string.h>
61 #endif /* _KERNEL */
62 
63 #include <cam/cam.h>
64 #include <cam/cam_ccb.h>
65 #include <cam/cam_periph.h>
66 #include <cam/cam_xpt_periph.h>
67 #include <cam/cam_sim.h>
68 #include <cam/cam_iosched.h>
69 
70 #include <cam/scsi/scsi_message.h>
71 #include <cam/scsi/scsi_da.h>
72 
73 #ifdef _KERNEL
74 /*
75  * Note that there are probe ordering dependencies here.  The order isn't
76  * controlled by this enumeration, but by explicit state transitions in
77  * dastart() and dadone().  Here are some of the dependencies:
78  *
79  * 1. RC should come first, before RC16, unless there is evidence that RC16
80  *    is supported.
81  * 2. BDC needs to come before any of the ATA probes, or the ZONE probe.
82  * 3. The ATA probes should go in this order:
83  *    ATA -> LOGDIR -> IDDIR -> SUP -> ATA_ZONE
84  */
85 typedef enum {
86 	DA_STATE_PROBE_WP,
87 	DA_STATE_PROBE_RC,
88 	DA_STATE_PROBE_RC16,
89 	DA_STATE_PROBE_LBP,
90 	DA_STATE_PROBE_BLK_LIMITS,
91 	DA_STATE_PROBE_BDC,
92 	DA_STATE_PROBE_ATA,
93 	DA_STATE_PROBE_ATA_LOGDIR,
94 	DA_STATE_PROBE_ATA_IDDIR,
95 	DA_STATE_PROBE_ATA_SUP,
96 	DA_STATE_PROBE_ATA_ZONE,
97 	DA_STATE_PROBE_ZONE,
98 	DA_STATE_NORMAL
99 } da_state;
100 
101 typedef enum {
102 	DA_FLAG_PACK_INVALID	= 0x000001,
103 	DA_FLAG_NEW_PACK	= 0x000002,
104 	DA_FLAG_PACK_LOCKED	= 0x000004,
105 	DA_FLAG_PACK_REMOVABLE	= 0x000008,
106 	DA_FLAG_NEED_OTAG	= 0x000020,
107 	DA_FLAG_WAS_OTAG	= 0x000040,
108 	DA_FLAG_RETRY_UA	= 0x000080,
109 	DA_FLAG_OPEN		= 0x000100,
110 	DA_FLAG_SCTX_INIT	= 0x000200,
111 	DA_FLAG_CAN_RC16	= 0x000400,
112 	DA_FLAG_PROBED		= 0x000800,
113 	DA_FLAG_DIRTY		= 0x001000,
114 	DA_FLAG_ANNOUNCED	= 0x002000,
115 	DA_FLAG_CAN_ATA_DMA	= 0x004000,
116 	DA_FLAG_CAN_ATA_LOG	= 0x008000,
117 	DA_FLAG_CAN_ATA_IDLOG	= 0x010000,
118 	DA_FLAG_CAN_ATA_SUPCAP	= 0x020000,
119 	DA_FLAG_CAN_ATA_ZONE	= 0x040000
120 } da_flags;
121 
122 typedef enum {
123 	DA_Q_NONE		= 0x00,
124 	DA_Q_NO_SYNC_CACHE	= 0x01,
125 	DA_Q_NO_6_BYTE		= 0x02,
126 	DA_Q_NO_PREVENT		= 0x04,
127 	DA_Q_4K			= 0x08,
128 	DA_Q_NO_RC16		= 0x10,
129 	DA_Q_NO_UNMAP		= 0x20,
130 	DA_Q_RETRY_BUSY		= 0x40,
131 	DA_Q_SMR_DM		= 0x80,
132 	DA_Q_STRICT_UNMAP	= 0x100
133 } da_quirks;
134 
135 #define DA_Q_BIT_STRING		\
136 	"\020"			\
137 	"\001NO_SYNC_CACHE"	\
138 	"\002NO_6_BYTE"		\
139 	"\003NO_PREVENT"	\
140 	"\0044K"		\
141 	"\005NO_RC16"		\
142 	"\006NO_UNMAP"		\
143 	"\007RETRY_BUSY"	\
144 	"\010SMR_DM"		\
145 	"\011STRICT_UNMAP"
146 
147 typedef enum {
148 	DA_CCB_PROBE_RC		= 0x01,
149 	DA_CCB_PROBE_RC16	= 0x02,
150 	DA_CCB_PROBE_LBP	= 0x03,
151 	DA_CCB_PROBE_BLK_LIMITS	= 0x04,
152 	DA_CCB_PROBE_BDC	= 0x05,
153 	DA_CCB_PROBE_ATA	= 0x06,
154 	DA_CCB_BUFFER_IO	= 0x07,
155 	DA_CCB_DUMP		= 0x0A,
156 	DA_CCB_DELETE		= 0x0B,
157 	DA_CCB_TUR		= 0x0C,
158 	DA_CCB_PROBE_ZONE	= 0x0D,
159 	DA_CCB_PROBE_ATA_LOGDIR	= 0x0E,
160 	DA_CCB_PROBE_ATA_IDDIR	= 0x0F,
161 	DA_CCB_PROBE_ATA_SUP	= 0x10,
162 	DA_CCB_PROBE_ATA_ZONE	= 0x11,
163 	DA_CCB_PROBE_WP		= 0x12,
164 	DA_CCB_TYPE_MASK	= 0x1F,
165 	DA_CCB_RETRY_UA		= 0x20
166 } da_ccb_state;
167 
168 /*
169  * Order here is important for method choice
170  *
171  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
172  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
173  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
174  * import taking 5mins.
175  *
176  */
177 typedef enum {
178 	DA_DELETE_NONE,
179 	DA_DELETE_DISABLE,
180 	DA_DELETE_ATA_TRIM,
181 	DA_DELETE_UNMAP,
182 	DA_DELETE_WS16,
183 	DA_DELETE_WS10,
184 	DA_DELETE_ZERO,
185 	DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
186 	DA_DELETE_MAX = DA_DELETE_ZERO
187 } da_delete_methods;
188 
189 /*
190  * For SCSI, host managed drives show up as a separate device type.  For
191  * ATA, host managed drives also have a different device signature.
192  * XXX KDM figure out the ATA host managed signature.
193  */
194 typedef enum {
195 	DA_ZONE_NONE		= 0x00,
196 	DA_ZONE_DRIVE_MANAGED	= 0x01,
197 	DA_ZONE_HOST_AWARE	= 0x02,
198 	DA_ZONE_HOST_MANAGED	= 0x03
199 } da_zone_mode;
200 
201 /*
202  * We distinguish between these interface cases in addition to the drive type:
203  * o ATA drive behind a SCSI translation layer that knows about ZBC/ZAC
204  * o ATA drive behind a SCSI translation layer that does not know about
205  *   ZBC/ZAC, and so needs to be managed via ATA passthrough.  In this
206  *   case, we would need to share the ATA code with the ada(4) driver.
207  * o SCSI drive.
208  */
209 typedef enum {
210 	DA_ZONE_IF_SCSI,
211 	DA_ZONE_IF_ATA_PASS,
212 	DA_ZONE_IF_ATA_SAT,
213 } da_zone_interface;
214 
215 typedef enum {
216 	DA_ZONE_FLAG_RZ_SUP		= 0x0001,
217 	DA_ZONE_FLAG_OPEN_SUP		= 0x0002,
218 	DA_ZONE_FLAG_CLOSE_SUP		= 0x0004,
219 	DA_ZONE_FLAG_FINISH_SUP		= 0x0008,
220 	DA_ZONE_FLAG_RWP_SUP		= 0x0010,
221 	DA_ZONE_FLAG_SUP_MASK		= (DA_ZONE_FLAG_RZ_SUP |
222 					   DA_ZONE_FLAG_OPEN_SUP |
223 					   DA_ZONE_FLAG_CLOSE_SUP |
224 					   DA_ZONE_FLAG_FINISH_SUP |
225 					   DA_ZONE_FLAG_RWP_SUP),
226 	DA_ZONE_FLAG_URSWRZ		= 0x0020,
227 	DA_ZONE_FLAG_OPT_SEQ_SET	= 0x0040,
228 	DA_ZONE_FLAG_OPT_NONSEQ_SET	= 0x0080,
229 	DA_ZONE_FLAG_MAX_SEQ_SET	= 0x0100,
230 	DA_ZONE_FLAG_SET_MASK		= (DA_ZONE_FLAG_OPT_SEQ_SET |
231 					   DA_ZONE_FLAG_OPT_NONSEQ_SET |
232 					   DA_ZONE_FLAG_MAX_SEQ_SET)
233 } da_zone_flags;
234 
235 static struct da_zone_desc {
236 	da_zone_flags value;
237 	const char *desc;
238 } da_zone_desc_table[] = {
239 	{DA_ZONE_FLAG_RZ_SUP, "Report Zones" },
240 	{DA_ZONE_FLAG_OPEN_SUP, "Open" },
241 	{DA_ZONE_FLAG_CLOSE_SUP, "Close" },
242 	{DA_ZONE_FLAG_FINISH_SUP, "Finish" },
243 	{DA_ZONE_FLAG_RWP_SUP, "Reset Write Pointer" },
244 };
245 
246 typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
247 			      struct bio *bp);
248 static da_delete_func_t da_delete_trim;
249 static da_delete_func_t da_delete_unmap;
250 static da_delete_func_t da_delete_ws;
251 
252 static const void * da_delete_functions[] = {
253 	NULL,
254 	NULL,
255 	da_delete_trim,
256 	da_delete_unmap,
257 	da_delete_ws,
258 	da_delete_ws,
259 	da_delete_ws
260 };
261 
262 static const char *da_delete_method_names[] =
263     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
264 static const char *da_delete_method_desc[] =
265     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
266       "WRITE SAME(10) with UNMAP", "ZERO" };
267 
268 /* Offsets into our private area for storing information */
269 #define ccb_state	ppriv_field0
270 #define ccb_bp		ppriv_ptr1
271 
272 struct disk_params {
273 	u_int8_t  heads;
274 	u_int32_t cylinders;
275 	u_int8_t  secs_per_track;
276 	u_int32_t secsize;	/* Number of bytes/sector */
277 	u_int64_t sectors;	/* total number sectors */
278 	u_int     stripesize;
279 	u_int     stripeoffset;
280 };
281 
282 #define UNMAP_RANGE_MAX		0xffffffff
283 #define UNMAP_HEAD_SIZE		8
284 #define UNMAP_RANGE_SIZE	16
285 #define UNMAP_MAX_RANGES	2048 /* Protocol Max is 4095 */
286 #define UNMAP_BUF_SIZE		((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
287 				UNMAP_HEAD_SIZE)
288 
289 #define WS10_MAX_BLKS		0xffff
290 #define WS16_MAX_BLKS		0xffffffff
291 #define ATA_TRIM_MAX_RANGES	((UNMAP_BUF_SIZE / \
292 	(ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
293 
294 #define DA_WORK_TUR		(1 << 16)
295 
296 typedef enum {
297 	DA_REF_OPEN = 1,
298 	DA_REF_OPEN_HOLD,
299 	DA_REF_CLOSE_HOLD,
300 	DA_REF_PROBE_HOLD,
301 	DA_REF_TUR,
302 	DA_REF_GEOM,
303 	DA_REF_SYSCTL,
304 	DA_REF_REPROBE,
305 	DA_REF_MAX		/* KEEP LAST */
306 } da_ref_token;
307 
308 struct da_softc {
309 	struct   cam_iosched_softc *cam_iosched;
310 	struct	 bio_queue_head delete_run_queue;
311 	LIST_HEAD(, ccb_hdr) pending_ccbs;
312 	int	 refcount;		/* Active xpt_action() calls */
313 	da_state state;
314 	da_flags flags;
315 	da_quirks quirks;
316 	int	 minimum_cmd_size;
317 	int	 error_inject;
318 	int	 trim_max_ranges;
319 	int	 delete_available;	/* Delete methods possibly available */
320 	da_zone_mode			zone_mode;
321 	da_zone_interface		zone_interface;
322 	da_zone_flags			zone_flags;
323 	struct ata_gp_log_dir		ata_logdir;
324 	int				valid_logdir_len;
325 	struct ata_identify_log_pages	ata_iddir;
326 	int				valid_iddir_len;
327 	uint64_t			optimal_seq_zones;
328 	uint64_t			optimal_nonseq_zones;
329 	uint64_t			max_seq_zones;
330 	u_int			maxio;
331 	uint32_t		unmap_max_ranges;
332 	uint32_t		unmap_max_lba; /* Max LBAs in UNMAP req */
333 	uint32_t		unmap_gran;
334 	uint32_t		unmap_gran_align;
335 	uint64_t		ws_max_blks;
336 	da_delete_methods	delete_method_pref;
337 	da_delete_methods	delete_method;
338 	da_delete_func_t	*delete_func;
339 	int			unmappedio;
340 	int			rotating;
341 	struct	 disk_params params;
342 	struct	 disk *disk;
343 	union	 ccb saved_ccb;
344 	struct task		sysctl_task;
345 	struct sysctl_ctx_list	sysctl_ctx;
346 	struct sysctl_oid	*sysctl_tree;
347 	struct callout		sendordered_c;
348 	uint64_t wwpn;
349 	uint8_t	 unmap_buf[UNMAP_BUF_SIZE];
350 	struct scsi_read_capacity_data_long rcaplong;
351 	struct callout		mediapoll_c;
352 	int			ref_flags[DA_REF_MAX];
353 #ifdef CAM_IO_STATS
354 	struct sysctl_ctx_list	sysctl_stats_ctx;
355 	struct sysctl_oid	*sysctl_stats_tree;
356 	u_int	errors;
357 	u_int	timeouts;
358 	u_int	invalidations;
359 #endif
360 #define DA_ANNOUNCETMP_SZ 80
361 	char			announce_temp[DA_ANNOUNCETMP_SZ];
362 #define DA_ANNOUNCE_SZ 400
363 	char			announcebuf[DA_ANNOUNCE_SZ];
364 };
365 
366 #define dadeleteflag(softc, delete_method, enable)			\
367 	if (enable) {							\
368 		softc->delete_available |= (1 << delete_method);	\
369 	} else {							\
370 		softc->delete_available &= ~(1 << delete_method);	\
371 	}
372 
373 struct da_quirk_entry {
374 	struct scsi_inquiry_pattern inq_pat;
375 	da_quirks quirks;
376 };
377 
378 static const char quantum[] = "QUANTUM";
379 static const char microp[] = "MICROP";
380 
381 static struct da_quirk_entry da_quirk_table[] =
382 {
383 	/* SPI, FC devices */
384 	{
385 		/*
386 		 * Fujitsu M2513A MO drives.
387 		 * Tested devices: M2513A2 firmware versions 1200 & 1300.
388 		 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
389 		 * Reported by: W.Scholten <whs@xs4all.nl>
390 		 */
391 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
392 		/*quirks*/ DA_Q_NO_SYNC_CACHE
393 	},
394 	{
395 		/* See above. */
396 		{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
397 		/*quirks*/ DA_Q_NO_SYNC_CACHE
398 	},
399 	{
400 		/*
401 		 * This particular Fujitsu drive doesn't like the
402 		 * synchronize cache command.
403 		 * Reported by: Tom Jackson <toj@gorilla.net>
404 		 */
405 		{T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
406 		/*quirks*/ DA_Q_NO_SYNC_CACHE
407 	},
408 	{
409 		/*
410 		 * This drive doesn't like the synchronize cache command
411 		 * either.  Reported by: Matthew Jacob <mjacob@feral.com>
412 		 * in NetBSD PR kern/6027, August 24, 1998.
413 		 */
414 		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
415 		/*quirks*/ DA_Q_NO_SYNC_CACHE
416 	},
417 	{
418 		/*
419 		 * This drive doesn't like the synchronize cache command
420 		 * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
421 		 * (PR 8882).
422 		 */
423 		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
424 		/*quirks*/ DA_Q_NO_SYNC_CACHE
425 	},
426 	{
427 		/*
428 		 * Doesn't like the synchronize cache command.
429 		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
430 		 */
431 		{T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
432 		/*quirks*/ DA_Q_NO_SYNC_CACHE
433 	},
434 	{
435 		/*
436 		 * Doesn't like the synchronize cache command.
437 		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
438 		 */
439 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
440 		/*quirks*/ DA_Q_NO_SYNC_CACHE
441 	},
442 	{
443 		/*
444 		 * Doesn't like the synchronize cache command.
445 		 */
446 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
447 		/*quirks*/ DA_Q_NO_SYNC_CACHE
448 	},
449 	{
450 		/*
451 		 * Doesn't like the synchronize cache command.
452 		 * Reported by: walter@pelissero.de
453 		 */
454 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
455 		/*quirks*/ DA_Q_NO_SYNC_CACHE
456 	},
457 	{
458 		/*
459 		 * Doesn't work correctly with 6 byte reads/writes.
460 		 * Returns illegal request, and points to byte 9 of the
461 		 * 6-byte CDB.
462 		 * Reported by:  Adam McDougall <bsdx@spawnet.com>
463 		 */
464 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
465 		/*quirks*/ DA_Q_NO_6_BYTE
466 	},
467 	{
468 		/* See above. */
469 		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
470 		/*quirks*/ DA_Q_NO_6_BYTE
471 	},
472 	{
473 		/*
474 		 * Doesn't like the synchronize cache command.
475 		 * Reported by: walter@pelissero.de
476 		 */
477 		{T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
478 		/*quirks*/ DA_Q_NO_SYNC_CACHE
479 	},
480 	{
481 		/*
482 		 * The CISS RAID controllers do not support SYNC_CACHE
483 		 */
484 		{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
485 		/*quirks*/ DA_Q_NO_SYNC_CACHE
486 	},
487 	{
488 		/*
489 		 * The STEC SSDs sometimes hang on UNMAP.
490 		 */
491 		{T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
492 		/*quirks*/ DA_Q_NO_UNMAP
493 	},
494 	{
495 		/*
496 		 * VMware returns BUSY status when storage has transient
497 		 * connectivity problems, so better wait.
498 		 * Also VMware returns odd errors on misaligned UNMAPs.
499 		 */
500 		{T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*"},
501 		/*quirks*/ DA_Q_RETRY_BUSY | DA_Q_STRICT_UNMAP
502 	},
503 	/* USB mass storage devices supported by umass(4) */
504 	{
505 		/*
506 		 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
507 		 * PR: kern/51675
508 		 */
509 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
510 		/*quirks*/ DA_Q_NO_SYNC_CACHE
511 	},
512 	{
513 		/*
514 		 * Power Quotient Int. (PQI) USB flash key
515 		 * PR: kern/53067
516 		 */
517 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
518 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
519 	},
520 	{
521 		/*
522 		 * Creative Nomad MUVO mp3 player (USB)
523 		 * PR: kern/53094
524 		 */
525 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
526 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
527 	},
528 	{
529 		/*
530 		 * Jungsoft NEXDISK USB flash key
531 		 * PR: kern/54737
532 		 */
533 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
534 		/*quirks*/ DA_Q_NO_SYNC_CACHE
535 	},
536 	{
537 		/*
538 		 * FreeDik USB Mini Data Drive
539 		 * PR: kern/54786
540 		 */
541 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
542 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
543 	},
544 	{
545 		/*
546 		 * Sigmatel USB Flash MP3 Player
547 		 * PR: kern/57046
548 		 */
549 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
550 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
551 	},
552 	{
553 		/*
554 		 * Neuros USB Digital Audio Computer
555 		 * PR: kern/63645
556 		 */
557 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
558 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
559 	},
560 	{
561 		/*
562 		 * SEAGRAND NP-900 MP3 Player
563 		 * PR: kern/64563
564 		 */
565 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
566 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
567 	},
568 	{
569 		/*
570 		 * iRiver iFP MP3 player (with UMS Firmware)
571 		 * PR: kern/54881, i386/63941, kern/66124
572 		 */
573 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
574 		/*quirks*/ DA_Q_NO_SYNC_CACHE
575 	},
576 	{
577 		/*
578 		 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
579 		 * PR: kern/70158
580 		 */
581 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
582 		/*quirks*/ DA_Q_NO_SYNC_CACHE
583 	},
584 	{
585 		/*
586 		 * ZICPlay USB MP3 Player with FM
587 		 * PR: kern/75057
588 		 */
589 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
590 		/*quirks*/ DA_Q_NO_SYNC_CACHE
591 	},
592 	{
593 		/*
594 		 * TEAC USB floppy mechanisms
595 		 */
596 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
597 		/*quirks*/ DA_Q_NO_SYNC_CACHE
598 	},
599 	{
600 		/*
601 		 * Kingston DataTraveler II+ USB Pen-Drive.
602 		 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
603 		 */
604 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
605 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
606 	},
607 	{
608 		/*
609 		 * USB DISK Pro PMAP
610 		 * Reported by: jhs
611 		 * PR: usb/96381
612 		 */
613 		{T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
614 		/*quirks*/ DA_Q_NO_SYNC_CACHE
615 	},
616 	{
617 		/*
618 		 * Motorola E398 Mobile Phone (TransFlash memory card).
619 		 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
620 		 * PR: usb/89889
621 		 */
622 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
623 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
624 	},
625 	{
626 		/*
627 		 * Qware BeatZkey! Pro
628 		 * PR: usb/79164
629 		 */
630 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
631 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
632 	},
633 	{
634 		/*
635 		 * Time DPA20B 1GB MP3 Player
636 		 * PR: usb/81846
637 		 */
638 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
639 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
640 	},
641 	{
642 		/*
643 		 * Samsung USB key 128Mb
644 		 * PR: usb/90081
645 		 */
646 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
647 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
648 	},
649 	{
650 		/*
651 		 * Kingston DataTraveler 2.0 USB Flash memory.
652 		 * PR: usb/89196
653 		 */
654 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
655 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
656 	},
657 	{
658 		/*
659 		 * Creative MUVO Slim mp3 player (USB)
660 		 * PR: usb/86131
661 		 */
662 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
663 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
664 		},
665 	{
666 		/*
667 		 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
668 		 * PR: usb/80487
669 		 */
670 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
671 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
672 	},
673 	{
674 		/*
675 		 * SanDisk Micro Cruzer 128MB
676 		 * PR: usb/75970
677 		 */
678 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
679 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
680 	},
681 	{
682 		/*
683 		 * TOSHIBA TransMemory USB sticks
684 		 * PR: kern/94660
685 		 */
686 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
687 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
688 	},
689 	{
690 		/*
691 		 * PNY USB 3.0 Flash Drives
692 		*/
693 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
694 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
695 	},
696 	{
697 		/*
698 		 * PNY USB Flash keys
699 		 * PR: usb/75578, usb/72344, usb/65436
700 		 */
701 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
702 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
703 	},
704 	{
705 		/*
706 		 * Genesys GL3224
707 		 */
708 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
709 		"120?"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_4K | DA_Q_NO_RC16
710 	},
711 	{
712 		/*
713 		 * Genesys 6-in-1 Card Reader
714 		 * PR: usb/94647
715 		 */
716 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
717 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
718 	},
719 	{
720 		/*
721 		 * Rekam Digital CAMERA
722 		 * PR: usb/98713
723 		 */
724 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
725 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
726 	},
727 	{
728 		/*
729 		 * iRiver H10 MP3 player
730 		 * PR: usb/102547
731 		 */
732 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
733 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
734 	},
735 	{
736 		/*
737 		 * iRiver U10 MP3 player
738 		 * PR: usb/92306
739 		 */
740 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
741 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
742 	},
743 	{
744 		/*
745 		 * X-Micro Flash Disk
746 		 * PR: usb/96901
747 		 */
748 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
749 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
750 	},
751 	{
752 		/*
753 		 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
754 		 * PR: usb/96546
755 		 */
756 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
757 		"1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
758 	},
759 	{
760 		/*
761 		 * Denver MP3 player
762 		 * PR: usb/107101
763 		 */
764 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
765 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
766 	},
767 	{
768 		/*
769 		 * Philips USB Key Audio KEY013
770 		 * PR: usb/68412
771 		 */
772 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
773 		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
774 	},
775 	{
776 		/*
777 		 * JNC MP3 Player
778 		 * PR: usb/94439
779 		 */
780 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
781 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
782 	},
783 	{
784 		/*
785 		 * SAMSUNG MP0402H
786 		 * PR: usb/108427
787 		 */
788 		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
789 		/*quirks*/ DA_Q_NO_SYNC_CACHE
790 	},
791 	{
792 		/*
793 		 * I/O Magic USB flash - Giga Bank
794 		 * PR: usb/108810
795 		 */
796 		{T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
797 		/*quirks*/ DA_Q_NO_SYNC_CACHE
798 	},
799 	{
800 		/*
801 		 * JoyFly 128mb USB Flash Drive
802 		 * PR: 96133
803 		 */
804 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
805 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
806 	},
807 	{
808 		/*
809 		 * ChipsBnk usb stick
810 		 * PR: 103702
811 		 */
812 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
813 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
814 	},
815 	{
816 		/*
817 		 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
818 		 * PR: 129858
819 		 */
820 		{T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
821 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
822 	},
823 	{
824 		/*
825 		 * Samsung YP-U3 mp3-player
826 		 * PR: 125398
827 		 */
828 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
829 		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
830 	},
831 	{
832 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
833 		 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
834 	},
835 	{
836 		/*
837 		 * Sony Cyber-Shot DSC cameras
838 		 * PR: usb/137035
839 		 */
840 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
841 		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
842 	},
843 	{
844 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
845 		 "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
846 	},
847 	{
848 		/* At least several Transcent USB sticks lie on RC16. */
849 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
850 		 "*"}, /*quirks*/ DA_Q_NO_RC16
851 	},
852 	{
853 		/*
854 		 * I-O Data USB Flash Disk
855 		 * PR: usb/211716
856 		 */
857 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "I-O DATA", "USB Flash Disk*",
858 		 "*"}, /*quirks*/ DA_Q_NO_RC16
859 	},
860 	/* ATA/SATA devices over SAS/USB/... */
861 	{
862 		/* Hitachi Advanced Format (4k) drives */
863 		{ T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
864 		/*quirks*/DA_Q_4K
865 	},
866 	{
867 		/* Micron Advanced Format (4k) drives */
868 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Micron 5100 MTFDDAK*", "*" },
869 		/*quirks*/DA_Q_4K
870 	},
871 	{
872 		/* Samsung Advanced Format (4k) drives */
873 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
874 		/*quirks*/DA_Q_4K
875 	},
876 	{
877 		/* Samsung Advanced Format (4k) drives */
878 		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
879 		/*quirks*/DA_Q_4K
880 	},
881 	{
882 		/* Samsung Advanced Format (4k) drives */
883 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
884 		/*quirks*/DA_Q_4K
885 	},
886 	{
887 		/* Samsung Advanced Format (4k) drives */
888 		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
889 		/*quirks*/DA_Q_4K
890 	},
891 	{
892 		/* Seagate Barracuda Green Advanced Format (4k) drives */
893 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
894 		/*quirks*/DA_Q_4K
895 	},
896 	{
897 		/* Seagate Barracuda Green Advanced Format (4k) drives */
898 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
899 		/*quirks*/DA_Q_4K
900 	},
901 	{
902 		/* Seagate Barracuda Green Advanced Format (4k) drives */
903 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
904 		/*quirks*/DA_Q_4K
905 	},
906 	{
907 		/* Seagate Barracuda Green Advanced Format (4k) drives */
908 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
909 		/*quirks*/DA_Q_4K
910 	},
911 	{
912 		/* Seagate Barracuda Green Advanced Format (4k) drives */
913 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
914 		/*quirks*/DA_Q_4K
915 	},
916 	{
917 		/* Seagate Barracuda Green Advanced Format (4k) drives */
918 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
919 		/*quirks*/DA_Q_4K
920 	},
921 	{
922 		/* Seagate Momentus Advanced Format (4k) drives */
923 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
924 		/*quirks*/DA_Q_4K
925 	},
926 	{
927 		/* Seagate Momentus Advanced Format (4k) drives */
928 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
929 		/*quirks*/DA_Q_4K
930 	},
931 	{
932 		/* Seagate Momentus Advanced Format (4k) drives */
933 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
934 		/*quirks*/DA_Q_4K
935 	},
936 	{
937 		/* Seagate Momentus Advanced Format (4k) drives */
938 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
939 		/*quirks*/DA_Q_4K
940 	},
941 	{
942 		/* Seagate Momentus Advanced Format (4k) drives */
943 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
944 		/*quirks*/DA_Q_4K
945 	},
946 	{
947 		/* Seagate Momentus Advanced Format (4k) drives */
948 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
949 		/*quirks*/DA_Q_4K
950 	},
951 	{
952 		/* Seagate Momentus Advanced Format (4k) drives */
953 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
954 		/*quirks*/DA_Q_4K
955 	},
956 	{
957 		/* Seagate Momentus Advanced Format (4k) drives */
958 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
959 		/*quirks*/DA_Q_4K
960 	},
961 	{
962 		/* Seagate Momentus Advanced Format (4k) drives */
963 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
964 		/*quirks*/DA_Q_4K
965 	},
966 	{
967 		/* Seagate Momentus Advanced Format (4k) drives */
968 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
969 		/*quirks*/DA_Q_4K
970 	},
971 	{
972 		/* Seagate Momentus Advanced Format (4k) drives */
973 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
974 		/*quirks*/DA_Q_4K
975 	},
976 	{
977 		/* Seagate Momentus Advanced Format (4k) drives */
978 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
979 		/*quirks*/DA_Q_4K
980 	},
981 	{
982 		/* Seagate Momentus Advanced Format (4k) drives */
983 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
984 		/*quirks*/DA_Q_4K
985 	},
986 	{
987 		/* Seagate Momentus Advanced Format (4k) drives */
988 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
989 		/*quirks*/DA_Q_4K
990 	},
991 	{
992 		/* Seagate Momentus Thin Advanced Format (4k) drives */
993 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
994 		/*quirks*/DA_Q_4K
995 	},
996 	{
997 		/* Seagate Momentus Thin Advanced Format (4k) drives */
998 		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
999 		/*quirks*/DA_Q_4K
1000 	},
1001 	{
1002 		/* WDC Caviar Green Advanced Format (4k) drives */
1003 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
1004 		/*quirks*/DA_Q_4K
1005 	},
1006 	{
1007 		/* WDC Caviar Green Advanced Format (4k) drives */
1008 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
1009 		/*quirks*/DA_Q_4K
1010 	},
1011 	{
1012 		/* WDC Caviar Green Advanced Format (4k) drives */
1013 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
1014 		/*quirks*/DA_Q_4K
1015 	},
1016 	{
1017 		/* WDC Caviar Green Advanced Format (4k) drives */
1018 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
1019 		/*quirks*/DA_Q_4K
1020 	},
1021 	{
1022 		/* WDC Caviar Green Advanced Format (4k) drives */
1023 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
1024 		/*quirks*/DA_Q_4K
1025 	},
1026 	{
1027 		/* WDC Caviar Green Advanced Format (4k) drives */
1028 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
1029 		/*quirks*/DA_Q_4K
1030 	},
1031 	{
1032 		/* WDC Caviar Green Advanced Format (4k) drives */
1033 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
1034 		/*quirks*/DA_Q_4K
1035 	},
1036 	{
1037 		/* WDC Caviar Green Advanced Format (4k) drives */
1038 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
1039 		/*quirks*/DA_Q_4K
1040 	},
1041 	{
1042 		/* WDC Scorpio Black Advanced Format (4k) drives */
1043 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
1044 		/*quirks*/DA_Q_4K
1045 	},
1046 	{
1047 		/* WDC Scorpio Black Advanced Format (4k) drives */
1048 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
1049 		/*quirks*/DA_Q_4K
1050 	},
1051 	{
1052 		/* WDC Scorpio Black Advanced Format (4k) drives */
1053 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
1054 		/*quirks*/DA_Q_4K
1055 	},
1056 	{
1057 		/* WDC Scorpio Black Advanced Format (4k) drives */
1058 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
1059 		/*quirks*/DA_Q_4K
1060 	},
1061 	{
1062 		/* WDC Scorpio Blue Advanced Format (4k) drives */
1063 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
1064 		/*quirks*/DA_Q_4K
1065 	},
1066 	{
1067 		/* WDC Scorpio Blue Advanced Format (4k) drives */
1068 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
1069 		/*quirks*/DA_Q_4K
1070 	},
1071 	{
1072 		/* WDC Scorpio Blue Advanced Format (4k) drives */
1073 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
1074 		/*quirks*/DA_Q_4K
1075 	},
1076 	{
1077 		/* WDC Scorpio Blue Advanced Format (4k) drives */
1078 		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
1079 		/*quirks*/DA_Q_4K
1080 	},
1081 	{
1082 		/*
1083 		 * Olympus FE-210 camera
1084 		 */
1085 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
1086 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
1087 	},
1088 	{
1089 		/*
1090 		 * LG UP3S MP3 player
1091 		 */
1092 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
1093 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
1094 	},
1095 	{
1096 		/*
1097 		 * Laser MP3-2GA13 MP3 player
1098 		 */
1099 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
1100 		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
1101 	},
1102 	{
1103 		/*
1104 		 * LaCie external 250GB Hard drive des by Porsche
1105 		 * Submitted by: Ben Stuyts <ben@altesco.nl>
1106 		 * PR: 121474
1107 		 */
1108 		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
1109 		/*quirks*/ DA_Q_NO_SYNC_CACHE
1110 	},
1111 	/* SATA SSDs */
1112 	{
1113 		/*
1114 		 * Corsair Force 2 SSDs
1115 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1116 		 */
1117 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
1118 		/*quirks*/DA_Q_4K
1119 	},
1120 	{
1121 		/*
1122 		 * Corsair Force 3 SSDs
1123 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1124 		 */
1125 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
1126 		/*quirks*/DA_Q_4K
1127 	},
1128         {
1129 		/*
1130 		 * Corsair Neutron GTX SSDs
1131 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1132 		 */
1133 		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
1134 		/*quirks*/DA_Q_4K
1135 	},
1136 	{
1137 		/*
1138 		 * Corsair Force GT & GS SSDs
1139 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1140 		 */
1141 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
1142 		/*quirks*/DA_Q_4K
1143 	},
1144 	{
1145 		/*
1146 		 * Crucial M4 SSDs
1147 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1148 		 */
1149 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
1150 		/*quirks*/DA_Q_4K
1151 	},
1152 	{
1153 		/*
1154 		 * Crucial RealSSD C300 SSDs
1155 		 * 4k optimised
1156 		 */
1157 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
1158 		"*" }, /*quirks*/DA_Q_4K
1159 	},
1160 	{
1161 		/*
1162 		 * Intel 320 Series SSDs
1163 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1164 		 */
1165 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1166 		/*quirks*/DA_Q_4K
1167 	},
1168 	{
1169 		/*
1170 		 * Intel 330 Series SSDs
1171 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1172 		 */
1173 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1174 		/*quirks*/DA_Q_4K
1175 	},
1176 	{
1177 		/*
1178 		 * Intel 510 Series SSDs
1179 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1180 		 */
1181 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1182 		/*quirks*/DA_Q_4K
1183 	},
1184 	{
1185 		/*
1186 		 * Intel 520 Series SSDs
1187 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1188 		 */
1189 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1190 		/*quirks*/DA_Q_4K
1191 	},
1192 	{
1193 		/*
1194 		 * Intel S3610 Series SSDs
1195 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1196 		 */
1197 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BX*", "*" },
1198 		/*quirks*/DA_Q_4K
1199 	},
1200 	{
1201 		/*
1202 		 * Intel X25-M Series SSDs
1203 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1204 		 */
1205 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1206 		/*quirks*/DA_Q_4K
1207 	},
1208 	{
1209 		/*
1210 		 * Kingston E100 Series SSDs
1211 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1212 		 */
1213 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1214 		/*quirks*/DA_Q_4K
1215 	},
1216 	{
1217 		/*
1218 		 * Kingston HyperX 3k SSDs
1219 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1220 		 */
1221 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1222 		/*quirks*/DA_Q_4K
1223 	},
1224 	{
1225 		/*
1226 		 * Marvell SSDs (entry taken from OpenSolaris)
1227 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1228 		 */
1229 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1230 		/*quirks*/DA_Q_4K
1231 	},
1232 	{
1233 		/*
1234 		 * OCZ Agility 2 SSDs
1235 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1236 		 */
1237 		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1238 		/*quirks*/DA_Q_4K
1239 	},
1240 	{
1241 		/*
1242 		 * OCZ Agility 3 SSDs
1243 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1244 		 */
1245 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1246 		/*quirks*/DA_Q_4K
1247 	},
1248 	{
1249 		/*
1250 		 * OCZ Deneva R Series SSDs
1251 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1252 		 */
1253 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1254 		/*quirks*/DA_Q_4K
1255 	},
1256 	{
1257 		/*
1258 		 * OCZ Vertex 2 SSDs (inc pro series)
1259 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1260 		 */
1261 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1262 		/*quirks*/DA_Q_4K
1263 	},
1264 	{
1265 		/*
1266 		 * OCZ Vertex 3 SSDs
1267 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1268 		 */
1269 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1270 		/*quirks*/DA_Q_4K
1271 	},
1272 	{
1273 		/*
1274 		 * OCZ Vertex 4 SSDs
1275 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1276 		 */
1277 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1278 		/*quirks*/DA_Q_4K
1279 	},
1280 	{
1281 		/*
1282 		 * Samsung 750 Series SSDs
1283 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1284 		 */
1285 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 750*", "*" },
1286 		/*quirks*/DA_Q_4K
1287 	},
1288 	{
1289 		/*
1290 		 * Samsung 830 Series SSDs
1291 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1292 		 */
1293 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1294 		/*quirks*/DA_Q_4K
1295 	},
1296 	{
1297 		/*
1298 		 * Samsung 840 SSDs
1299 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1300 		 */
1301 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1302 		/*quirks*/DA_Q_4K
1303 	},
1304 	{
1305 		/*
1306 		 * Samsung 845 SSDs
1307 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1308 		 */
1309 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 845*", "*" },
1310 		/*quirks*/DA_Q_4K
1311 	},
1312 	{
1313 		/*
1314 		 * Samsung 850 SSDs
1315 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1316 		 */
1317 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
1318 		/*quirks*/DA_Q_4K
1319 	},
1320 	{
1321 		/*
1322 		 * Samsung 843T Series SSDs (MZ7WD*)
1323 		 * Samsung PM851 Series SSDs (MZ7TE*)
1324 		 * Samsung PM853T Series SSDs (MZ7GE*)
1325 		 * Samsung SM863 Series SSDs (MZ7KM*)
1326 		 * 4k optimised
1327 		 */
1328 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7*", "*" },
1329 		/*quirks*/DA_Q_4K
1330 	},
1331 	{
1332 		/*
1333 		 * Same as for SAMSUNG MZ7* but enable the quirks for SSD
1334 		 * starting with MZ7* too
1335 		 */
1336 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MZ7*", "*" },
1337 		/*quirks*/DA_Q_4K
1338 	},
1339 	{
1340 		/*
1341 		 * SuperTalent TeraDrive CT SSDs
1342 		 * 4k optimised & trim only works in 4k requests + 4k aligned
1343 		 */
1344 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1345 		/*quirks*/DA_Q_4K
1346 	},
1347 	{
1348 		/*
1349 		 * XceedIOPS SATA SSDs
1350 		 * 4k optimised
1351 		 */
1352 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1353 		/*quirks*/DA_Q_4K
1354 	},
1355 	{
1356 		/*
1357 		 * Hama Innostor USB-Stick
1358 		 */
1359 		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "Innostor", "Innostor*", "*" },
1360 		/*quirks*/DA_Q_NO_RC16
1361 	},
1362 	{
1363 		/*
1364 		 * Seagate Lamarr 8TB Shingled Magnetic Recording (SMR)
1365 		 * Drive Managed SATA hard drive.  This drive doesn't report
1366 		 * in firmware that it is a drive managed SMR drive.
1367 		 */
1368 		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST8000AS000[23]*", "*" },
1369 		/*quirks*/DA_Q_SMR_DM
1370 	},
1371 	{
1372 		/*
1373 		 * MX-ES USB Drive by Mach Xtreme
1374 		 */
1375 		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "MX", "MXUB3*", "*"},
1376 		/*quirks*/DA_Q_NO_RC16
1377 	},
1378 };
1379 
1380 static	disk_strategy_t	dastrategy;
1381 static	dumper_t	dadump;
1382 static	periph_init_t	dainit;
1383 static	void		daasync(void *callback_arg, u_int32_t code,
1384 				struct cam_path *path, void *arg);
1385 static	void		dasysctlinit(void *context, int pending);
1386 static	int		dasysctlsofttimeout(SYSCTL_HANDLER_ARGS);
1387 static	int		dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1388 static	int		dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1389 static	int		dazonemodesysctl(SYSCTL_HANDLER_ARGS);
1390 static	int		dazonesupsysctl(SYSCTL_HANDLER_ARGS);
1391 static	int		dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1392 static	void		dadeletemethodset(struct da_softc *softc,
1393 					  da_delete_methods delete_method);
1394 static	off_t		dadeletemaxsize(struct da_softc *softc,
1395 					da_delete_methods delete_method);
1396 static	void		dadeletemethodchoose(struct da_softc *softc,
1397 					     da_delete_methods default_method);
1398 static	void		daprobedone(struct cam_periph *periph, union ccb *ccb);
1399 
1400 static	periph_ctor_t	daregister;
1401 static	periph_dtor_t	dacleanup;
1402 static	periph_start_t	dastart;
1403 static	periph_oninv_t	daoninvalidate;
1404 static	void		dazonedone(struct cam_periph *periph, union ccb *ccb);
1405 static	void		dadone(struct cam_periph *periph,
1406 			       union ccb *done_ccb);
1407 static  int		daerror(union ccb *ccb, u_int32_t cam_flags,
1408 				u_int32_t sense_flags);
1409 static void		daprevent(struct cam_periph *periph, int action);
1410 static void		dareprobe(struct cam_periph *periph);
1411 static void		dasetgeom(struct cam_periph *periph, uint32_t block_len,
1412 				  uint64_t maxsector,
1413 				  struct scsi_read_capacity_data_long *rcaplong,
1414 				  size_t rcap_size);
1415 static timeout_t	dasendorderedtag;
1416 static void		dashutdown(void *arg, int howto);
1417 static timeout_t	damediapoll;
1418 
1419 #ifndef	DA_DEFAULT_POLL_PERIOD
1420 #define	DA_DEFAULT_POLL_PERIOD	3
1421 #endif
1422 
1423 #ifndef DA_DEFAULT_TIMEOUT
1424 #define DA_DEFAULT_TIMEOUT 60	/* Timeout in seconds */
1425 #endif
1426 
1427 #ifndef DA_DEFAULT_SOFTTIMEOUT
1428 #define DA_DEFAULT_SOFTTIMEOUT	0
1429 #endif
1430 
1431 #ifndef	DA_DEFAULT_RETRY
1432 #define	DA_DEFAULT_RETRY	4
1433 #endif
1434 
1435 #ifndef	DA_DEFAULT_SEND_ORDERED
1436 #define	DA_DEFAULT_SEND_ORDERED	1
1437 #endif
1438 
1439 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1440 static int da_retry_count = DA_DEFAULT_RETRY;
1441 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1442 static sbintime_t da_default_softtimeout = DA_DEFAULT_SOFTTIMEOUT;
1443 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1444 
1445 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1446             "CAM Direct Access Disk driver");
1447 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RWTUN,
1448            &da_poll_period, 0, "Media polling period in seconds");
1449 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RWTUN,
1450            &da_retry_count, 0, "Normal I/O retry count");
1451 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RWTUN,
1452            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1453 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RWTUN,
1454            &da_send_ordered, 0, "Send Ordered Tags");
1455 
1456 SYSCTL_PROC(_kern_cam_da, OID_AUTO, default_softtimeout,
1457     CTLTYPE_UINT | CTLFLAG_RW, NULL, 0, dasysctlsofttimeout, "I",
1458     "Soft I/O timeout (ms)");
1459 TUNABLE_INT64("kern.cam.da.default_softtimeout", &da_default_softtimeout);
1460 
1461 /*
1462  * DA_ORDEREDTAG_INTERVAL determines how often, relative
1463  * to the default timeout, we check to see whether an ordered
1464  * tagged transaction is appropriate to prevent simple tag
1465  * starvation.  Since we'd like to ensure that there is at least
1466  * 1/2 of the timeout length left for a starved transaction to
1467  * complete after we've sent an ordered tag, we must poll at least
1468  * four times in every timeout period.  This takes care of the worst
1469  * case where a starved transaction starts during an interval that
1470  * meets the requirement "don't send an ordered tag" test so it takes
1471  * us two intervals to determine that a tag must be sent.
1472  */
1473 #ifndef DA_ORDEREDTAG_INTERVAL
1474 #define DA_ORDEREDTAG_INTERVAL 4
1475 #endif
1476 
1477 static struct periph_driver dadriver =
1478 {
1479 	dainit, "da",
1480 	TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1481 };
1482 
1483 PERIPHDRIVER_DECLARE(da, dadriver);
1484 
1485 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1486 
1487 /*
1488  * This driver takes out references / holds in well defined pairs, never
1489  * recursively. These macros / inline functions enforce those rules. They
1490  * are only enabled with DA_TRACK_REFS or INVARIANTS. If DA_TRACK_REFS is
1491  * defined to be 2 or larger, the tracking also includes debug printfs.
1492  */
1493 #if defined(DA_TRACK_REFS) || defined(INVARIANTS)
1494 
1495 #ifndef DA_TRACK_REFS
1496 #define DA_TRACK_REFS 1
1497 #endif
1498 
1499 #if DA_TRACK_REFS > 1
1500 static const char *da_ref_text[] = {
1501 	"bogus",
1502 	"open",
1503 	"open hold",
1504 	"close hold",
1505 	"reprobe hold",
1506 	"Test Unit Ready",
1507 	"Geom",
1508 	"sysctl",
1509 	"reprobe",
1510 	"max -- also bogus"
1511 };
1512 
1513 #define DA_PERIPH_PRINT(periph, msg, args...)		\
1514 	CAM_PERIPH_PRINT(periph, msg, ##args)
1515 #else
1516 #define DA_PERIPH_PRINT(periph, msg, args...)
1517 #endif
1518 
1519 static inline void
1520 token_sanity(da_ref_token token)
1521 {
1522 	if ((unsigned)token >= DA_REF_MAX)
1523 		panic("Bad token value passed in %d\n", token);
1524 }
1525 
1526 static inline int
1527 da_periph_hold(struct cam_periph *periph, int priority, da_ref_token token)
1528 {
1529 	int err = cam_periph_hold(periph, priority);
1530 
1531 	token_sanity(token);
1532 	DA_PERIPH_PRINT(periph, "Holding device %s (%d): %d\n",
1533 	    da_ref_text[token], token, err);
1534 	if (err == 0) {
1535 		int cnt;
1536 		struct da_softc *softc = periph->softc;
1537 
1538 		cnt = atomic_fetchadd_int(&softc->ref_flags[token], 1);
1539 		if (cnt != 0)
1540 			panic("Re-holding for reason %d, cnt = %d", token, cnt);
1541 	}
1542 	return (err);
1543 }
1544 
1545 static inline void
1546 da_periph_unhold(struct cam_periph *periph, da_ref_token token)
1547 {
1548 	int cnt;
1549 	struct da_softc *softc = periph->softc;
1550 
1551 	token_sanity(token);
1552 	DA_PERIPH_PRINT(periph, "Unholding device %s (%d)\n",
1553 	    da_ref_text[token], token);
1554 	cnt = atomic_fetchadd_int(&softc->ref_flags[token], -1);
1555 	if (cnt != 1)
1556 		panic("Unholding %d with cnt = %d", token, cnt);
1557 	cam_periph_unhold(periph);
1558 }
1559 
1560 static inline int
1561 da_periph_acquire(struct cam_periph *periph, da_ref_token token)
1562 {
1563 	int err = cam_periph_acquire(periph);
1564 
1565 	token_sanity(token);
1566 	DA_PERIPH_PRINT(periph, "acquiring device %s (%d): %d\n",
1567 	    da_ref_text[token], token, err);
1568 	if (err == 0) {
1569 		int cnt;
1570 		struct da_softc *softc = periph->softc;
1571 
1572 		cnt = atomic_fetchadd_int(&softc->ref_flags[token], 1);
1573 		if (cnt != 0)
1574 			panic("Re-refing for reason %d, cnt = %d", token, cnt);
1575 	}
1576 	return (err);
1577 }
1578 
1579 static inline void
1580 da_periph_release(struct cam_periph *periph, da_ref_token token)
1581 {
1582 	int cnt;
1583 	struct da_softc *softc = periph->softc;
1584 
1585 	token_sanity(token);
1586 	DA_PERIPH_PRINT(periph, "releasing device %s (%d)\n",
1587 	    da_ref_text[token], token);
1588 	cnt = atomic_fetchadd_int(&softc->ref_flags[token], -1);
1589 	if (cnt != 1)
1590 		panic("Releasing %d with cnt = %d", token, cnt);
1591 	cam_periph_release(periph);
1592 }
1593 
1594 static inline void
1595 da_periph_release_locked(struct cam_periph *periph, da_ref_token token)
1596 {
1597 	int cnt;
1598 	struct da_softc *softc = periph->softc;
1599 
1600 	token_sanity(token);
1601 	DA_PERIPH_PRINT(periph, "releasing device (locked) %s (%d)\n",
1602 	    da_ref_text[token], token);
1603 	cnt = atomic_fetchadd_int(&softc->ref_flags[token], -1);
1604 	if (cnt != 1)
1605 		panic("Unholding %d with cnt = %d", token, cnt);
1606 	cam_periph_release_locked(periph);
1607 }
1608 
1609 #define cam_periph_hold POISON
1610 #define cam_periph_unhold POISON
1611 #define cam_periph_acquire POISON
1612 #define cam_periph_release POISON
1613 #define cam_periph_release_locked POISON
1614 
1615 #else
1616 #define	da_periph_hold(periph, prio, token)	cam_periph_hold((periph), (prio))
1617 #define da_periph_unhold(periph, token)		cam_periph_unhold((periph))
1618 #define da_periph_acquire(periph, token)	cam_periph_acquire((periph))
1619 #define da_periph_release(periph, token)	cam_periph_release((periph))
1620 #define da_periph_release_locked(periph, token)	cam_periph_release_locked((periph))
1621 #endif
1622 
1623 static int
1624 daopen(struct disk *dp)
1625 {
1626 	struct cam_periph *periph;
1627 	struct da_softc *softc;
1628 	int error;
1629 
1630 	periph = (struct cam_periph *)dp->d_drv1;
1631 	if (da_periph_acquire(periph, DA_REF_OPEN) != 0) {
1632 		return (ENXIO);
1633 	}
1634 
1635 	cam_periph_lock(periph);
1636 	if ((error = da_periph_hold(periph, PRIBIO|PCATCH, DA_REF_OPEN_HOLD)) != 0) {
1637 		cam_periph_unlock(periph);
1638 		da_periph_release(periph, DA_REF_OPEN);
1639 		return (error);
1640 	}
1641 
1642 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1643 	    ("daopen\n"));
1644 
1645 	softc = (struct da_softc *)periph->softc;
1646 	dareprobe(periph);
1647 
1648 	/* Wait for the disk size update.  */
1649 	error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1650 	    "dareprobe", 0);
1651 	if (error != 0)
1652 		xpt_print(periph->path, "unable to retrieve capacity data\n");
1653 
1654 	if (periph->flags & CAM_PERIPH_INVALID)
1655 		error = ENXIO;
1656 
1657 	if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1658 	    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1659 		daprevent(periph, PR_PREVENT);
1660 
1661 	if (error == 0) {
1662 		softc->flags &= ~DA_FLAG_PACK_INVALID;
1663 		softc->flags |= DA_FLAG_OPEN;
1664 	}
1665 
1666 	da_periph_unhold(periph, DA_REF_OPEN_HOLD);
1667 	cam_periph_unlock(periph);
1668 
1669 	if (error != 0)
1670 		da_periph_release(periph, DA_REF_OPEN);
1671 
1672 	return (error);
1673 }
1674 
1675 static int
1676 daclose(struct disk *dp)
1677 {
1678 	struct	cam_periph *periph;
1679 	struct	da_softc *softc;
1680 	union	ccb *ccb;
1681 
1682 	periph = (struct cam_periph *)dp->d_drv1;
1683 	softc = (struct da_softc *)periph->softc;
1684 	cam_periph_lock(periph);
1685 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1686 	    ("daclose\n"));
1687 
1688 	if (da_periph_hold(periph, PRIBIO, DA_REF_CLOSE_HOLD) == 0) {
1689 
1690 		/* Flush disk cache. */
1691 		if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1692 		    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1693 		    (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1694 			ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1695 			scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1696 			    /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1697 			    /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1698 			    5 * 60 * 1000);
1699 			cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1700 			    /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1701 			    softc->disk->d_devstat);
1702 			softc->flags &= ~DA_FLAG_DIRTY;
1703 			xpt_release_ccb(ccb);
1704 		}
1705 
1706 		/* Allow medium removal. */
1707 		if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1708 		    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1709 			daprevent(periph, PR_ALLOW);
1710 
1711 		da_periph_unhold(periph, DA_REF_CLOSE_HOLD);
1712 	}
1713 
1714 	/*
1715 	 * If we've got removeable media, mark the blocksize as
1716 	 * unavailable, since it could change when new media is
1717 	 * inserted.
1718 	 */
1719 	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1720 		softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1721 
1722 	softc->flags &= ~DA_FLAG_OPEN;
1723 	while (softc->refcount != 0)
1724 		cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1725 	cam_periph_unlock(periph);
1726 	da_periph_release(periph, DA_REF_OPEN);
1727 	return (0);
1728 }
1729 
1730 static void
1731 daschedule(struct cam_periph *periph)
1732 {
1733 	struct da_softc *softc = (struct da_softc *)periph->softc;
1734 
1735 	if (softc->state != DA_STATE_NORMAL)
1736 		return;
1737 
1738 	cam_iosched_schedule(softc->cam_iosched, periph);
1739 }
1740 
1741 /*
1742  * Actually translate the requested transfer into one the physical driver
1743  * can understand.  The transfer is described by a buf and will include
1744  * only one physical transfer.
1745  */
1746 static void
1747 dastrategy(struct bio *bp)
1748 {
1749 	struct cam_periph *periph;
1750 	struct da_softc *softc;
1751 
1752 	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1753 	softc = (struct da_softc *)periph->softc;
1754 
1755 	cam_periph_lock(periph);
1756 
1757 	/*
1758 	 * If the device has been made invalid, error out
1759 	 */
1760 	if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1761 		cam_periph_unlock(periph);
1762 		biofinish(bp, NULL, ENXIO);
1763 		return;
1764 	}
1765 
1766 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1767 
1768 	/*
1769 	 * Zone commands must be ordered, because they can depend on the
1770 	 * effects of previously issued commands, and they may affect
1771 	 * commands after them.
1772 	 */
1773 	if (bp->bio_cmd == BIO_ZONE)
1774 		bp->bio_flags |= BIO_ORDERED;
1775 
1776 	/*
1777 	 * Place it in the queue of disk activities for this disk
1778 	 */
1779 	cam_iosched_queue_work(softc->cam_iosched, bp);
1780 
1781 	/*
1782 	 * Schedule ourselves for performing the work.
1783 	 */
1784 	daschedule(periph);
1785 	cam_periph_unlock(periph);
1786 
1787 	return;
1788 }
1789 
1790 static int
1791 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1792 {
1793 	struct	    cam_periph *periph;
1794 	struct	    da_softc *softc;
1795 	u_int	    secsize;
1796 	struct	    ccb_scsiio csio;
1797 	struct	    disk *dp;
1798 	int	    error = 0;
1799 
1800 	dp = arg;
1801 	periph = dp->d_drv1;
1802 	softc = (struct da_softc *)periph->softc;
1803 	secsize = softc->params.secsize;
1804 
1805 	if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
1806 		return (ENXIO);
1807 
1808 	memset(&csio, 0, sizeof(csio));
1809 	if (length > 0) {
1810 		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1811 		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1812 		scsi_read_write(&csio,
1813 				/*retries*/0,
1814 				dadone,
1815 				MSG_ORDERED_Q_TAG,
1816 				/*read*/SCSI_RW_WRITE,
1817 				/*byte2*/0,
1818 				/*minimum_cmd_size*/ softc->minimum_cmd_size,
1819 				offset / secsize,
1820 				length / secsize,
1821 				/*data_ptr*/(u_int8_t *) virtual,
1822 				/*dxfer_len*/length,
1823 				/*sense_len*/SSD_FULL_SIZE,
1824 				da_default_timeout * 1000);
1825 		error = cam_periph_runccb((union ccb *)&csio, cam_periph_error,
1826 		    0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1827 		if (error != 0)
1828 			printf("Aborting dump due to I/O error.\n");
1829 		return (error);
1830 	}
1831 
1832 	/*
1833 	 * Sync the disk cache contents to the physical media.
1834 	 */
1835 	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1836 
1837 		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1838 		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1839 		scsi_synchronize_cache(&csio,
1840 				       /*retries*/0,
1841 				       /*cbfcnp*/dadone,
1842 				       MSG_SIMPLE_Q_TAG,
1843 				       /*begin_lba*/0,/* Cover the whole disk */
1844 				       /*lb_count*/0,
1845 				       SSD_FULL_SIZE,
1846 				       5 * 1000);
1847 		error = cam_periph_runccb((union ccb *)&csio, cam_periph_error,
1848 		    0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1849 		if (error != 0)
1850 			xpt_print(periph->path, "Synchronize cache failed\n");
1851 	}
1852 	return (error);
1853 }
1854 
1855 static int
1856 dagetattr(struct bio *bp)
1857 {
1858 	int ret;
1859 	struct cam_periph *periph;
1860 
1861 	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1862 	cam_periph_lock(periph);
1863 	ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1864 	    periph->path);
1865 	cam_periph_unlock(periph);
1866 	if (ret == 0)
1867 		bp->bio_completed = bp->bio_length;
1868 	return ret;
1869 }
1870 
1871 static void
1872 dainit(void)
1873 {
1874 	cam_status status;
1875 
1876 	/*
1877 	 * Install a global async callback.  This callback will
1878 	 * receive async callbacks like "new device found".
1879 	 */
1880 	status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1881 
1882 	if (status != CAM_REQ_CMP) {
1883 		printf("da: Failed to attach master async callback "
1884 		       "due to status 0x%x!\n", status);
1885 	} else if (da_send_ordered) {
1886 
1887 		/* Register our shutdown event handler */
1888 		if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1889 					   NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1890 		    printf("dainit: shutdown event registration failed!\n");
1891 	}
1892 }
1893 
1894 /*
1895  * Callback from GEOM, called when it has finished cleaning up its
1896  * resources.
1897  */
1898 static void
1899 dadiskgonecb(struct disk *dp)
1900 {
1901 	struct cam_periph *periph;
1902 
1903 	periph = (struct cam_periph *)dp->d_drv1;
1904 	da_periph_release(periph, DA_REF_GEOM);
1905 }
1906 
1907 static void
1908 daoninvalidate(struct cam_periph *periph)
1909 {
1910 	struct da_softc *softc;
1911 
1912 	softc = (struct da_softc *)periph->softc;
1913 
1914 	/*
1915 	 * De-register any async callbacks.
1916 	 */
1917 	xpt_register_async(0, daasync, periph, periph->path);
1918 
1919 	softc->flags |= DA_FLAG_PACK_INVALID;
1920 #ifdef CAM_IO_STATS
1921 	softc->invalidations++;
1922 #endif
1923 
1924 	/*
1925 	 * Return all queued I/O with ENXIO.
1926 	 * XXX Handle any transactions queued to the card
1927 	 *     with XPT_ABORT_CCB.
1928 	 */
1929 	cam_iosched_flush(softc->cam_iosched, NULL, ENXIO);
1930 
1931 	/*
1932 	 * Tell GEOM that we've gone away, we'll get a callback when it is
1933 	 * done cleaning up its resources.
1934 	 */
1935 	disk_gone(softc->disk);
1936 }
1937 
1938 static void
1939 dacleanup(struct cam_periph *periph)
1940 {
1941 	struct da_softc *softc;
1942 
1943 	softc = (struct da_softc *)periph->softc;
1944 
1945 	cam_periph_unlock(periph);
1946 
1947 	cam_iosched_fini(softc->cam_iosched);
1948 
1949 	/*
1950 	 * If we can't free the sysctl tree, oh well...
1951 	 */
1952 	if ((softc->flags & DA_FLAG_SCTX_INIT) != 0) {
1953 #ifdef CAM_IO_STATS
1954 		if (sysctl_ctx_free(&softc->sysctl_stats_ctx) != 0)
1955 			xpt_print(periph->path,
1956 			    "can't remove sysctl stats context\n");
1957 #endif
1958 		if (sysctl_ctx_free(&softc->sysctl_ctx) != 0)
1959 			xpt_print(periph->path,
1960 			    "can't remove sysctl context\n");
1961 	}
1962 
1963 	callout_drain(&softc->mediapoll_c);
1964 	disk_destroy(softc->disk);
1965 	callout_drain(&softc->sendordered_c);
1966 	free(softc, M_DEVBUF);
1967 	cam_periph_lock(periph);
1968 }
1969 
1970 static void
1971 daasync(void *callback_arg, u_int32_t code,
1972 	struct cam_path *path, void *arg)
1973 {
1974 	struct cam_periph *periph;
1975 	struct da_softc *softc;
1976 
1977 	periph = (struct cam_periph *)callback_arg;
1978 	switch (code) {
1979 	case AC_FOUND_DEVICE:
1980 	{
1981 		struct ccb_getdev *cgd;
1982 		cam_status status;
1983 
1984 		cgd = (struct ccb_getdev *)arg;
1985 		if (cgd == NULL)
1986 			break;
1987 
1988 		if (cgd->protocol != PROTO_SCSI)
1989 			break;
1990 		if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
1991 			break;
1992 		if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1993 		    && SID_TYPE(&cgd->inq_data) != T_RBC
1994 		    && SID_TYPE(&cgd->inq_data) != T_OPTICAL
1995 		    && SID_TYPE(&cgd->inq_data) != T_ZBC_HM)
1996 			break;
1997 
1998 		/*
1999 		 * Allocate a peripheral instance for
2000 		 * this device and start the probe
2001 		 * process.
2002 		 */
2003 		status = cam_periph_alloc(daregister, daoninvalidate,
2004 					  dacleanup, dastart,
2005 					  "da", CAM_PERIPH_BIO,
2006 					  path, daasync,
2007 					  AC_FOUND_DEVICE, cgd);
2008 
2009 		if (status != CAM_REQ_CMP
2010 		 && status != CAM_REQ_INPROG)
2011 			printf("daasync: Unable to attach to new device "
2012 				"due to status 0x%x\n", status);
2013 		return;
2014 	}
2015 	case AC_ADVINFO_CHANGED:
2016 	{
2017 		uintptr_t buftype;
2018 
2019 		buftype = (uintptr_t)arg;
2020 		if (buftype == CDAI_TYPE_PHYS_PATH) {
2021 			struct da_softc *softc;
2022 
2023 			softc = periph->softc;
2024 			disk_attr_changed(softc->disk, "GEOM::physpath",
2025 					  M_NOWAIT);
2026 		}
2027 		break;
2028 	}
2029 	case AC_UNIT_ATTENTION:
2030 	{
2031 		union ccb *ccb;
2032 		int error_code, sense_key, asc, ascq;
2033 
2034 		softc = (struct da_softc *)periph->softc;
2035 		ccb = (union ccb *)arg;
2036 
2037 		/*
2038 		 * Handle all UNIT ATTENTIONs except our own,
2039 		 * as they will be handled by daerror().
2040 		 */
2041 		if (xpt_path_periph(ccb->ccb_h.path) != periph &&
2042 		    scsi_extract_sense_ccb(ccb,
2043 		     &error_code, &sense_key, &asc, &ascq)) {
2044 			if (asc == 0x2A && ascq == 0x09) {
2045 				xpt_print(ccb->ccb_h.path,
2046 				    "Capacity data has changed\n");
2047 				softc->flags &= ~DA_FLAG_PROBED;
2048 				dareprobe(periph);
2049 			} else if (asc == 0x28 && ascq == 0x00) {
2050 				softc->flags &= ~DA_FLAG_PROBED;
2051 				disk_media_changed(softc->disk, M_NOWAIT);
2052 			} else if (asc == 0x3F && ascq == 0x03) {
2053 				xpt_print(ccb->ccb_h.path,
2054 				    "INQUIRY data has changed\n");
2055 				softc->flags &= ~DA_FLAG_PROBED;
2056 				dareprobe(periph);
2057 			}
2058 		}
2059 		break;
2060 	}
2061 	case AC_SCSI_AEN:
2062 		softc = (struct da_softc *)periph->softc;
2063 		if (!cam_iosched_has_work_flags(softc->cam_iosched, DA_WORK_TUR)) {
2064 			if (da_periph_acquire(periph, DA_REF_TUR) == 0) {
2065 				cam_iosched_set_work_flags(softc->cam_iosched, DA_WORK_TUR);
2066 				daschedule(periph);
2067 			}
2068 		}
2069 		/* FALLTHROUGH */
2070 	case AC_SENT_BDR:
2071 	case AC_BUS_RESET:
2072 	{
2073 		struct ccb_hdr *ccbh;
2074 
2075 		softc = (struct da_softc *)periph->softc;
2076 		/*
2077 		 * Don't fail on the expected unit attention
2078 		 * that will occur.
2079 		 */
2080 		softc->flags |= DA_FLAG_RETRY_UA;
2081 		LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
2082 			ccbh->ccb_state |= DA_CCB_RETRY_UA;
2083 		break;
2084 	}
2085 	case AC_INQ_CHANGED:
2086 		softc = (struct da_softc *)periph->softc;
2087 		softc->flags &= ~DA_FLAG_PROBED;
2088 		dareprobe(periph);
2089 		break;
2090 	default:
2091 		break;
2092 	}
2093 	cam_periph_async(periph, code, path, arg);
2094 }
2095 
2096 static void
2097 dasysctlinit(void *context, int pending)
2098 {
2099 	struct cam_periph *periph;
2100 	struct da_softc *softc;
2101 	char tmpstr[32], tmpstr2[16];
2102 	struct ccb_trans_settings cts;
2103 
2104 	periph = (struct cam_periph *)context;
2105 	/*
2106 	 * periph was held for us when this task was enqueued
2107 	 */
2108 	if (periph->flags & CAM_PERIPH_INVALID) {
2109 		da_periph_release(periph, DA_REF_SYSCTL);
2110 		return;
2111 	}
2112 
2113 	softc = (struct da_softc *)periph->softc;
2114 	snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
2115 	snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
2116 
2117 	sysctl_ctx_init(&softc->sysctl_ctx);
2118 	softc->flags |= DA_FLAG_SCTX_INIT;
2119 	softc->sysctl_tree = SYSCTL_ADD_NODE_WITH_LABEL(&softc->sysctl_ctx,
2120 		SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
2121 		CTLFLAG_RD, 0, tmpstr, "device_index");
2122 	if (softc->sysctl_tree == NULL) {
2123 		printf("dasysctlinit: unable to allocate sysctl tree\n");
2124 		da_periph_release(periph, DA_REF_SYSCTL);
2125 		return;
2126 	}
2127 
2128 	/*
2129 	 * Now register the sysctl handler, so the user can change the value on
2130 	 * the fly.
2131 	 */
2132 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
2133 		OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RWTUN,
2134 		softc, 0, dadeletemethodsysctl, "A",
2135 		"BIO_DELETE execution method");
2136 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
2137 		OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
2138 		softc, 0, dadeletemaxsysctl, "Q",
2139 		"Maximum BIO_DELETE size");
2140 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
2141 		OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
2142 		&softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
2143 		"Minimum CDB size");
2144 
2145 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
2146 		OID_AUTO, "zone_mode", CTLTYPE_STRING | CTLFLAG_RD,
2147 		softc, 0, dazonemodesysctl, "A",
2148 		"Zone Mode");
2149 	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
2150 		OID_AUTO, "zone_support", CTLTYPE_STRING | CTLFLAG_RD,
2151 		softc, 0, dazonesupsysctl, "A",
2152 		"Zone Support");
2153 	SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
2154 		SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO,
2155 		"optimal_seq_zones", CTLFLAG_RD, &softc->optimal_seq_zones,
2156 		"Optimal Number of Open Sequential Write Preferred Zones");
2157 	SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
2158 		SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO,
2159 		"optimal_nonseq_zones", CTLFLAG_RD,
2160 		&softc->optimal_nonseq_zones,
2161 		"Optimal Number of Non-Sequentially Written Sequential Write "
2162 		"Preferred Zones");
2163 	SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
2164 		SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO,
2165 		"max_seq_zones", CTLFLAG_RD, &softc->max_seq_zones,
2166 		"Maximum Number of Open Sequential Write Required Zones");
2167 
2168 	SYSCTL_ADD_INT(&softc->sysctl_ctx,
2169 		       SYSCTL_CHILDREN(softc->sysctl_tree),
2170 		       OID_AUTO,
2171 		       "error_inject",
2172 		       CTLFLAG_RW,
2173 		       &softc->error_inject,
2174 		       0,
2175 		       "error_inject leaf");
2176 
2177 	SYSCTL_ADD_INT(&softc->sysctl_ctx,
2178 		       SYSCTL_CHILDREN(softc->sysctl_tree),
2179 		       OID_AUTO,
2180 		       "unmapped_io",
2181 		       CTLFLAG_RD,
2182 		       &softc->unmappedio,
2183 		       0,
2184 		       "Unmapped I/O leaf");
2185 
2186 	SYSCTL_ADD_INT(&softc->sysctl_ctx,
2187 		       SYSCTL_CHILDREN(softc->sysctl_tree),
2188 		       OID_AUTO,
2189 		       "rotating",
2190 		       CTLFLAG_RD,
2191 		       &softc->rotating,
2192 		       0,
2193 		       "Rotating media");
2194 
2195 	/*
2196 	 * Add some addressing info.
2197 	 */
2198 	memset(&cts, 0, sizeof (cts));
2199 	xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
2200 	cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
2201 	cts.type = CTS_TYPE_CURRENT_SETTINGS;
2202 	cam_periph_lock(periph);
2203 	xpt_action((union ccb *)&cts);
2204 	cam_periph_unlock(periph);
2205 	if (cts.ccb_h.status != CAM_REQ_CMP) {
2206 		da_periph_release(periph, DA_REF_SYSCTL);
2207 		return;
2208 	}
2209 	if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
2210 		struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
2211 		if (fc->valid & CTS_FC_VALID_WWPN) {
2212 			softc->wwpn = fc->wwpn;
2213 			SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
2214 			    SYSCTL_CHILDREN(softc->sysctl_tree),
2215 			    OID_AUTO, "wwpn", CTLFLAG_RD,
2216 			    &softc->wwpn, "World Wide Port Name");
2217 		}
2218 	}
2219 
2220 #ifdef CAM_IO_STATS
2221 	/*
2222 	 * Now add some useful stats.
2223 	 * XXX These should live in cam_periph and be common to all periphs
2224 	 */
2225 	softc->sysctl_stats_tree = SYSCTL_ADD_NODE(&softc->sysctl_stats_ctx,
2226 	    SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, "stats",
2227 	    CTLFLAG_RD, 0, "Statistics");
2228 	SYSCTL_ADD_INT(&softc->sysctl_stats_ctx,
2229 		       SYSCTL_CHILDREN(softc->sysctl_stats_tree),
2230 		       OID_AUTO,
2231 		       "errors",
2232 		       CTLFLAG_RD,
2233 		       &softc->errors,
2234 		       0,
2235 		       "Transport errors reported by the SIM");
2236 	SYSCTL_ADD_INT(&softc->sysctl_stats_ctx,
2237 		       SYSCTL_CHILDREN(softc->sysctl_stats_tree),
2238 		       OID_AUTO,
2239 		       "timeouts",
2240 		       CTLFLAG_RD,
2241 		       &softc->timeouts,
2242 		       0,
2243 		       "Device timeouts reported by the SIM");
2244 	SYSCTL_ADD_INT(&softc->sysctl_stats_ctx,
2245 		       SYSCTL_CHILDREN(softc->sysctl_stats_tree),
2246 		       OID_AUTO,
2247 		       "pack_invalidations",
2248 		       CTLFLAG_RD,
2249 		       &softc->invalidations,
2250 		       0,
2251 		       "Device pack invalidations");
2252 #endif
2253 
2254 	cam_iosched_sysctl_init(softc->cam_iosched, &softc->sysctl_ctx,
2255 	    softc->sysctl_tree);
2256 
2257 	da_periph_release(periph, DA_REF_SYSCTL);
2258 }
2259 
2260 static int
2261 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
2262 {
2263 	int error;
2264 	uint64_t value;
2265 	struct da_softc *softc;
2266 
2267 	softc = (struct da_softc *)arg1;
2268 
2269 	value = softc->disk->d_delmaxsize;
2270 	error = sysctl_handle_64(oidp, &value, 0, req);
2271 	if ((error != 0) || (req->newptr == NULL))
2272 		return (error);
2273 
2274 	/* only accept values smaller than the calculated value */
2275 	if (value > dadeletemaxsize(softc, softc->delete_method)) {
2276 		return (EINVAL);
2277 	}
2278 	softc->disk->d_delmaxsize = value;
2279 
2280 	return (0);
2281 }
2282 
2283 static int
2284 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
2285 {
2286 	int error, value;
2287 
2288 	value = *(int *)arg1;
2289 
2290 	error = sysctl_handle_int(oidp, &value, 0, req);
2291 
2292 	if ((error != 0)
2293 	 || (req->newptr == NULL))
2294 		return (error);
2295 
2296 	/*
2297 	 * Acceptable values here are 6, 10, 12 or 16.
2298 	 */
2299 	if (value < 6)
2300 		value = 6;
2301 	else if ((value > 6)
2302 	      && (value <= 10))
2303 		value = 10;
2304 	else if ((value > 10)
2305 	      && (value <= 12))
2306 		value = 12;
2307 	else if (value > 12)
2308 		value = 16;
2309 
2310 	*(int *)arg1 = value;
2311 
2312 	return (0);
2313 }
2314 
2315 static int
2316 dasysctlsofttimeout(SYSCTL_HANDLER_ARGS)
2317 {
2318 	sbintime_t value;
2319 	int error;
2320 
2321 	value = da_default_softtimeout / SBT_1MS;
2322 
2323 	error = sysctl_handle_int(oidp, (int *)&value, 0, req);
2324 	if ((error != 0) || (req->newptr == NULL))
2325 		return (error);
2326 
2327 	/* XXX Should clip this to a reasonable level */
2328 	if (value > da_default_timeout * 1000)
2329 		return (EINVAL);
2330 
2331 	da_default_softtimeout = value * SBT_1MS;
2332 	return (0);
2333 }
2334 
2335 static void
2336 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
2337 {
2338 
2339 	softc->delete_method = delete_method;
2340 	softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
2341 	softc->delete_func = da_delete_functions[delete_method];
2342 
2343 	if (softc->delete_method > DA_DELETE_DISABLE)
2344 		softc->disk->d_flags |= DISKFLAG_CANDELETE;
2345 	else
2346 		softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
2347 }
2348 
2349 static off_t
2350 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
2351 {
2352 	off_t sectors;
2353 
2354 	switch(delete_method) {
2355 	case DA_DELETE_UNMAP:
2356 		sectors = (off_t)softc->unmap_max_lba;
2357 		break;
2358 	case DA_DELETE_ATA_TRIM:
2359 		sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
2360 		break;
2361 	case DA_DELETE_WS16:
2362 		sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
2363 		break;
2364 	case DA_DELETE_ZERO:
2365 	case DA_DELETE_WS10:
2366 		sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
2367 		break;
2368 	default:
2369 		return 0;
2370 	}
2371 
2372 	return (off_t)softc->params.secsize *
2373 	    omin(sectors, softc->params.sectors);
2374 }
2375 
2376 static void
2377 daprobedone(struct cam_periph *periph, union ccb *ccb)
2378 {
2379 	struct da_softc *softc;
2380 
2381 	softc = (struct da_softc *)periph->softc;
2382 
2383 	dadeletemethodchoose(softc, DA_DELETE_NONE);
2384 
2385 	if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
2386 		char buf[80];
2387 		int i, sep;
2388 
2389 		snprintf(buf, sizeof(buf), "Delete methods: <");
2390 		sep = 0;
2391 		for (i = 0; i <= DA_DELETE_MAX; i++) {
2392 			if ((softc->delete_available & (1 << i)) == 0 &&
2393 			    i != softc->delete_method)
2394 				continue;
2395 			if (sep)
2396 				strlcat(buf, ",", sizeof(buf));
2397 			strlcat(buf, da_delete_method_names[i],
2398 			    sizeof(buf));
2399 			if (i == softc->delete_method)
2400 				strlcat(buf, "(*)", sizeof(buf));
2401 			sep = 1;
2402 		}
2403 		strlcat(buf, ">", sizeof(buf));
2404 		printf("%s%d: %s\n", periph->periph_name,
2405 		    periph->unit_number, buf);
2406 	}
2407 
2408 	/*
2409 	 * Since our peripheral may be invalidated by an error
2410 	 * above or an external event, we must release our CCB
2411 	 * before releasing the probe lock on the peripheral.
2412 	 * The peripheral will only go away once the last lock
2413 	 * is removed, and we need it around for the CCB release
2414 	 * operation.
2415 	 */
2416 	xpt_release_ccb(ccb);
2417 	softc->state = DA_STATE_NORMAL;
2418 	softc->flags |= DA_FLAG_PROBED;
2419 	daschedule(periph);
2420 	wakeup(&softc->disk->d_mediasize);
2421 	if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
2422 		softc->flags |= DA_FLAG_ANNOUNCED;
2423 		da_periph_unhold(periph, DA_REF_PROBE_HOLD);
2424 	} else
2425 		da_periph_release_locked(periph, DA_REF_REPROBE);
2426 }
2427 
2428 static void
2429 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
2430 {
2431 	int i, methods;
2432 
2433 	/* If available, prefer the method requested by user. */
2434 	i = softc->delete_method_pref;
2435 	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2436 	if (methods & (1 << i)) {
2437 		dadeletemethodset(softc, i);
2438 		return;
2439 	}
2440 
2441 	/* Use the pre-defined order to choose the best performing delete. */
2442 	for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
2443 		if (i == DA_DELETE_ZERO)
2444 			continue;
2445 		if (softc->delete_available & (1 << i)) {
2446 			dadeletemethodset(softc, i);
2447 			return;
2448 		}
2449 	}
2450 
2451 	/* Fallback to default. */
2452 	dadeletemethodset(softc, default_method);
2453 }
2454 
2455 static int
2456 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
2457 {
2458 	char buf[16];
2459 	const char *p;
2460 	struct da_softc *softc;
2461 	int i, error, value;
2462 
2463 	softc = (struct da_softc *)arg1;
2464 
2465 	value = softc->delete_method;
2466 	if (value < 0 || value > DA_DELETE_MAX)
2467 		p = "UNKNOWN";
2468 	else
2469 		p = da_delete_method_names[value];
2470 	strncpy(buf, p, sizeof(buf));
2471 	error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2472 	if (error != 0 || req->newptr == NULL)
2473 		return (error);
2474 	for (i = 0; i <= DA_DELETE_MAX; i++) {
2475 		if (strcmp(buf, da_delete_method_names[i]) == 0)
2476 			break;
2477 	}
2478 	if (i > DA_DELETE_MAX)
2479 		return (EINVAL);
2480 	softc->delete_method_pref = i;
2481 	dadeletemethodchoose(softc, DA_DELETE_NONE);
2482 	return (0);
2483 }
2484 
2485 static int
2486 dazonemodesysctl(SYSCTL_HANDLER_ARGS)
2487 {
2488 	char tmpbuf[40];
2489 	struct da_softc *softc;
2490 	int error;
2491 
2492 	softc = (struct da_softc *)arg1;
2493 
2494 	switch (softc->zone_mode) {
2495 	case DA_ZONE_DRIVE_MANAGED:
2496 		snprintf(tmpbuf, sizeof(tmpbuf), "Drive Managed");
2497 		break;
2498 	case DA_ZONE_HOST_AWARE:
2499 		snprintf(tmpbuf, sizeof(tmpbuf), "Host Aware");
2500 		break;
2501 	case DA_ZONE_HOST_MANAGED:
2502 		snprintf(tmpbuf, sizeof(tmpbuf), "Host Managed");
2503 		break;
2504 	case DA_ZONE_NONE:
2505 	default:
2506 		snprintf(tmpbuf, sizeof(tmpbuf), "Not Zoned");
2507 		break;
2508 	}
2509 
2510 	error = sysctl_handle_string(oidp, tmpbuf, sizeof(tmpbuf), req);
2511 
2512 	return (error);
2513 }
2514 
2515 static int
2516 dazonesupsysctl(SYSCTL_HANDLER_ARGS)
2517 {
2518 	char tmpbuf[180];
2519 	struct da_softc *softc;
2520 	struct sbuf sb;
2521 	int error, first;
2522 	unsigned int i;
2523 
2524 	softc = (struct da_softc *)arg1;
2525 
2526 	error = 0;
2527 	first = 1;
2528 	sbuf_new(&sb, tmpbuf, sizeof(tmpbuf), 0);
2529 
2530 	for (i = 0; i < sizeof(da_zone_desc_table) /
2531 	     sizeof(da_zone_desc_table[0]); i++) {
2532 		if (softc->zone_flags & da_zone_desc_table[i].value) {
2533 			if (first == 0)
2534 				sbuf_printf(&sb, ", ");
2535 			else
2536 				first = 0;
2537 			sbuf_cat(&sb, da_zone_desc_table[i].desc);
2538 		}
2539 	}
2540 
2541 	if (first == 1)
2542 		sbuf_printf(&sb, "None");
2543 
2544 	sbuf_finish(&sb);
2545 
2546 	error = sysctl_handle_string(oidp, sbuf_data(&sb), sbuf_len(&sb), req);
2547 
2548 	return (error);
2549 }
2550 
2551 static cam_status
2552 daregister(struct cam_periph *periph, void *arg)
2553 {
2554 	struct da_softc *softc;
2555 	struct ccb_pathinq cpi;
2556 	struct ccb_getdev *cgd;
2557 	char tmpstr[80];
2558 	caddr_t match;
2559 
2560 	cgd = (struct ccb_getdev *)arg;
2561 	if (cgd == NULL) {
2562 		printf("daregister: no getdev CCB, can't register device\n");
2563 		return(CAM_REQ_CMP_ERR);
2564 	}
2565 
2566 	softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2567 	    M_NOWAIT|M_ZERO);
2568 
2569 	if (softc == NULL) {
2570 		printf("daregister: Unable to probe new device. "
2571 		       "Unable to allocate softc\n");
2572 		return(CAM_REQ_CMP_ERR);
2573 	}
2574 
2575 	if (cam_iosched_init(&softc->cam_iosched, periph) != 0) {
2576 		printf("daregister: Unable to probe new device. "
2577 		       "Unable to allocate iosched memory\n");
2578 		free(softc, M_DEVBUF);
2579 		return(CAM_REQ_CMP_ERR);
2580 	}
2581 
2582 	LIST_INIT(&softc->pending_ccbs);
2583 	softc->state = DA_STATE_PROBE_WP;
2584 	bioq_init(&softc->delete_run_queue);
2585 	if (SID_IS_REMOVABLE(&cgd->inq_data))
2586 		softc->flags |= DA_FLAG_PACK_REMOVABLE;
2587 	softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2588 	softc->unmap_max_lba = UNMAP_RANGE_MAX;
2589 	softc->unmap_gran = 0;
2590 	softc->unmap_gran_align = 0;
2591 	softc->ws_max_blks = WS16_MAX_BLKS;
2592 	softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2593 	softc->rotating = 1;
2594 
2595 	periph->softc = softc;
2596 
2597 	/*
2598 	 * See if this device has any quirks.
2599 	 */
2600 	match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2601 			       (caddr_t)da_quirk_table,
2602 			       nitems(da_quirk_table),
2603 			       sizeof(*da_quirk_table), scsi_inquiry_match);
2604 
2605 	if (match != NULL)
2606 		softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2607 	else
2608 		softc->quirks = DA_Q_NONE;
2609 
2610 	/* Check if the SIM does not want 6 byte commands */
2611 	xpt_path_inq(&cpi, periph->path);
2612 	if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2613 		softc->quirks |= DA_Q_NO_6_BYTE;
2614 
2615 	if (SID_TYPE(&cgd->inq_data) == T_ZBC_HM)
2616 		softc->zone_mode = DA_ZONE_HOST_MANAGED;
2617 	else if (softc->quirks & DA_Q_SMR_DM)
2618 		softc->zone_mode = DA_ZONE_DRIVE_MANAGED;
2619 	else
2620 		softc->zone_mode = DA_ZONE_NONE;
2621 
2622 	if (softc->zone_mode != DA_ZONE_NONE) {
2623 		if (scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2624 			if (scsi_vpd_supported_page(periph, SVPD_ZONED_BDC))
2625 				softc->zone_interface = DA_ZONE_IF_ATA_SAT;
2626 			else
2627 				softc->zone_interface = DA_ZONE_IF_ATA_PASS;
2628 		} else
2629 			softc->zone_interface = DA_ZONE_IF_SCSI;
2630 	}
2631 
2632 	TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2633 
2634 	/*
2635 	 * Take an exclusive refcount on the periph while dastart is called
2636 	 * to finish the probe.  The reference will be dropped in dadone at
2637 	 * the end of probe.
2638 	 *
2639 	 * XXX if cam_periph_hold returns an error, we don't hold a refcount.
2640 	 */
2641 	(void)da_periph_hold(periph, PRIBIO, DA_REF_PROBE_HOLD);
2642 
2643 	/*
2644 	 * Schedule a periodic event to occasionally send an
2645 	 * ordered tag to a device.
2646 	 */
2647 	callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2648 	callout_reset(&softc->sendordered_c,
2649 	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2650 	    dasendorderedtag, softc);
2651 
2652 	cam_periph_unlock(periph);
2653 	/*
2654 	 * RBC devices don't have to support READ(6), only READ(10).
2655 	 */
2656 	if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2657 		softc->minimum_cmd_size = 10;
2658 	else
2659 		softc->minimum_cmd_size = 6;
2660 
2661 	/*
2662 	 * Load the user's default, if any.
2663 	 */
2664 	snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2665 		 periph->unit_number);
2666 	TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2667 
2668 	/*
2669 	 * 6, 10, 12 and 16 are the currently permissible values.
2670 	 */
2671 	if (softc->minimum_cmd_size > 12)
2672 		softc->minimum_cmd_size = 16;
2673 	else if (softc->minimum_cmd_size > 10)
2674 		softc->minimum_cmd_size = 12;
2675 	else if (softc->minimum_cmd_size > 6)
2676 		softc->minimum_cmd_size = 10;
2677 	else
2678 		softc->minimum_cmd_size = 6;
2679 
2680 	/* Predict whether device may support READ CAPACITY(16). */
2681 	if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2682 	    (softc->quirks & DA_Q_NO_RC16) == 0) {
2683 		softc->flags |= DA_FLAG_CAN_RC16;
2684 	}
2685 
2686 	/*
2687 	 * Register this media as a disk.
2688 	 */
2689 	softc->disk = disk_alloc();
2690 	softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2691 			  periph->unit_number, 0,
2692 			  DEVSTAT_BS_UNAVAILABLE,
2693 			  SID_TYPE(&cgd->inq_data) |
2694 			  XPORT_DEVSTAT_TYPE(cpi.transport),
2695 			  DEVSTAT_PRIORITY_DISK);
2696 	softc->disk->d_open = daopen;
2697 	softc->disk->d_close = daclose;
2698 	softc->disk->d_strategy = dastrategy;
2699 	softc->disk->d_dump = dadump;
2700 	softc->disk->d_getattr = dagetattr;
2701 	softc->disk->d_gone = dadiskgonecb;
2702 	softc->disk->d_name = "da";
2703 	softc->disk->d_drv1 = periph;
2704 	if (cpi.maxio == 0)
2705 		softc->maxio = DFLTPHYS;	/* traditional default */
2706 	else if (cpi.maxio > MAXPHYS)
2707 		softc->maxio = MAXPHYS;		/* for safety */
2708 	else
2709 		softc->maxio = cpi.maxio;
2710 	softc->disk->d_maxsize = softc->maxio;
2711 	softc->disk->d_unit = periph->unit_number;
2712 	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION | DISKFLAG_CANZONE;
2713 	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2714 		softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2715 	if ((cpi.hba_misc & PIM_UNMAPPED) != 0) {
2716 		softc->unmappedio = 1;
2717 		softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2718 	}
2719 	cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2720 	    sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2721 	strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2722 	cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2723 	    cgd->inq_data.product, sizeof(cgd->inq_data.product),
2724 	    sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2725 	softc->disk->d_hba_vendor = cpi.hba_vendor;
2726 	softc->disk->d_hba_device = cpi.hba_device;
2727 	softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2728 	softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2729 
2730 	/*
2731 	 * Acquire a reference to the periph before we register with GEOM.
2732 	 * We'll release this reference once GEOM calls us back (via
2733 	 * dadiskgonecb()) telling us that our provider has been freed.
2734 	 */
2735 	if (da_periph_acquire(periph, DA_REF_GEOM) != 0) {
2736 		xpt_print(periph->path, "%s: lost periph during "
2737 			  "registration!\n", __func__);
2738 		cam_periph_lock(periph);
2739 		return (CAM_REQ_CMP_ERR);
2740 	}
2741 
2742 	disk_create(softc->disk, DISK_VERSION);
2743 	cam_periph_lock(periph);
2744 
2745 	/*
2746 	 * Add async callbacks for events of interest.
2747 	 * I don't bother checking if this fails as,
2748 	 * in most cases, the system will function just
2749 	 * fine without them and the only alternative
2750 	 * would be to not attach the device on failure.
2751 	 */
2752 	xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2753 	    AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION |
2754 	    AC_INQ_CHANGED, daasync, periph, periph->path);
2755 
2756 	/*
2757 	 * Emit an attribute changed notification just in case
2758 	 * physical path information arrived before our async
2759 	 * event handler was registered, but after anyone attaching
2760 	 * to our disk device polled it.
2761 	 */
2762 	disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2763 
2764 	/*
2765 	 * Schedule a periodic media polling events.
2766 	 */
2767 	callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2768 	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2769 	    (cgd->inq_flags & SID_AEN) == 0 &&
2770 	    da_poll_period != 0)
2771 		callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2772 		    damediapoll, periph);
2773 
2774 	xpt_schedule(periph, CAM_PRIORITY_DEV);
2775 
2776 	return(CAM_REQ_CMP);
2777 }
2778 
2779 static int
2780 da_zone_bio_to_scsi(int disk_zone_cmd)
2781 {
2782 	switch (disk_zone_cmd) {
2783 	case DISK_ZONE_OPEN:
2784 		return ZBC_OUT_SA_OPEN;
2785 	case DISK_ZONE_CLOSE:
2786 		return ZBC_OUT_SA_CLOSE;
2787 	case DISK_ZONE_FINISH:
2788 		return ZBC_OUT_SA_FINISH;
2789 	case DISK_ZONE_RWP:
2790 		return ZBC_OUT_SA_RWP;
2791 	}
2792 
2793 	return -1;
2794 }
2795 
2796 static int
2797 da_zone_cmd(struct cam_periph *periph, union ccb *ccb, struct bio *bp,
2798 	    int *queue_ccb)
2799 {
2800 	struct da_softc *softc;
2801 	int error;
2802 
2803 	error = 0;
2804 
2805 	if (bp->bio_cmd != BIO_ZONE) {
2806 		error = EINVAL;
2807 		goto bailout;
2808 	}
2809 
2810 	softc = periph->softc;
2811 
2812 	switch (bp->bio_zone.zone_cmd) {
2813 	case DISK_ZONE_OPEN:
2814 	case DISK_ZONE_CLOSE:
2815 	case DISK_ZONE_FINISH:
2816 	case DISK_ZONE_RWP: {
2817 		int zone_flags;
2818 		int zone_sa;
2819 		uint64_t lba;
2820 
2821 		zone_sa = da_zone_bio_to_scsi(bp->bio_zone.zone_cmd);
2822 		if (zone_sa == -1) {
2823 			xpt_print(periph->path, "Cannot translate zone "
2824 			    "cmd %#x to SCSI\n", bp->bio_zone.zone_cmd);
2825 			error = EINVAL;
2826 			goto bailout;
2827 		}
2828 
2829 		zone_flags = 0;
2830 		lba = bp->bio_zone.zone_params.rwp.id;
2831 
2832 		if (bp->bio_zone.zone_params.rwp.flags &
2833 		    DISK_ZONE_RWP_FLAG_ALL)
2834 			zone_flags |= ZBC_OUT_ALL;
2835 
2836 		if (softc->zone_interface != DA_ZONE_IF_ATA_PASS) {
2837 			scsi_zbc_out(&ccb->csio,
2838 				     /*retries*/ da_retry_count,
2839 				     /*cbfcnp*/ dadone,
2840 				     /*tag_action*/ MSG_SIMPLE_Q_TAG,
2841 				     /*service_action*/ zone_sa,
2842 				     /*zone_id*/ lba,
2843 				     /*zone_flags*/ zone_flags,
2844 				     /*data_ptr*/ NULL,
2845 				     /*dxfer_len*/ 0,
2846 				     /*sense_len*/ SSD_FULL_SIZE,
2847 				     /*timeout*/ da_default_timeout * 1000);
2848 		} else {
2849 			/*
2850 			 * Note that in this case, even though we can
2851 			 * technically use NCQ, we don't bother for several
2852 			 * reasons:
2853 			 * 1. It hasn't been tested on a SAT layer that
2854 			 *    supports it.  This is new as of SAT-4.
2855 			 * 2. Even when there is a SAT layer that supports
2856 			 *    it, that SAT layer will also probably support
2857 			 *    ZBC -> ZAC translation, since they are both
2858 			 *    in the SAT-4 spec.
2859 			 * 3. Translation will likely be preferable to ATA
2860 			 *    passthrough.  LSI / Avago at least single
2861 			 *    steps ATA passthrough commands in the HBA,
2862 			 *    regardless of protocol, so unless that
2863 			 *    changes, there is a performance penalty for
2864 			 *    doing ATA passthrough no matter whether
2865 			 *    you're using NCQ/FPDMA, DMA or PIO.
2866 			 * 4. It requires a 32-byte CDB, which at least at
2867 			 *    this point in CAM requires a CDB pointer, which
2868 			 *    would require us to allocate an additional bit
2869 			 *    of storage separate from the CCB.
2870 			 */
2871 			error = scsi_ata_zac_mgmt_out(&ccb->csio,
2872 			    /*retries*/ da_retry_count,
2873 			    /*cbfcnp*/ dadone,
2874 			    /*tag_action*/ MSG_SIMPLE_Q_TAG,
2875 			    /*use_ncq*/ 0,
2876 			    /*zm_action*/ zone_sa,
2877 			    /*zone_id*/ lba,
2878 			    /*zone_flags*/ zone_flags,
2879 			    /*data_ptr*/ NULL,
2880 			    /*dxfer_len*/ 0,
2881 			    /*cdb_storage*/ NULL,
2882 			    /*cdb_storage_len*/ 0,
2883 			    /*sense_len*/ SSD_FULL_SIZE,
2884 			    /*timeout*/ da_default_timeout * 1000);
2885 			if (error != 0) {
2886 				error = EINVAL;
2887 				xpt_print(periph->path,
2888 				    "scsi_ata_zac_mgmt_out() returned an "
2889 				    "error!");
2890 				goto bailout;
2891 			}
2892 		}
2893 		*queue_ccb = 1;
2894 
2895 		break;
2896 	}
2897 	case DISK_ZONE_REPORT_ZONES: {
2898 		uint8_t *rz_ptr;
2899 		uint32_t num_entries, alloc_size;
2900 		struct disk_zone_report *rep;
2901 
2902 		rep = &bp->bio_zone.zone_params.report;
2903 
2904 		num_entries = rep->entries_allocated;
2905 		if (num_entries == 0) {
2906 			xpt_print(periph->path, "No entries allocated for "
2907 			    "Report Zones request\n");
2908 			error = EINVAL;
2909 			goto bailout;
2910 		}
2911 		alloc_size = sizeof(struct scsi_report_zones_hdr) +
2912 		    (sizeof(struct scsi_report_zones_desc) * num_entries);
2913 		alloc_size = min(alloc_size, softc->disk->d_maxsize);
2914 		rz_ptr = malloc(alloc_size, M_SCSIDA, M_NOWAIT | M_ZERO);
2915 		if (rz_ptr == NULL) {
2916 			xpt_print(periph->path, "Unable to allocate memory "
2917 			   "for Report Zones request\n");
2918 			error = ENOMEM;
2919 			goto bailout;
2920 		}
2921 
2922 		if (softc->zone_interface != DA_ZONE_IF_ATA_PASS) {
2923 			scsi_zbc_in(&ccb->csio,
2924 				    /*retries*/ da_retry_count,
2925 				    /*cbcfnp*/ dadone,
2926 				    /*tag_action*/ MSG_SIMPLE_Q_TAG,
2927 				    /*service_action*/ ZBC_IN_SA_REPORT_ZONES,
2928 				    /*zone_start_lba*/ rep->starting_id,
2929 				    /*zone_options*/ rep->rep_options,
2930 				    /*data_ptr*/ rz_ptr,
2931 				    /*dxfer_len*/ alloc_size,
2932 				    /*sense_len*/ SSD_FULL_SIZE,
2933 				    /*timeout*/ da_default_timeout * 1000);
2934 		} else {
2935 			/*
2936 			 * Note that in this case, even though we can
2937 			 * technically use NCQ, we don't bother for several
2938 			 * reasons:
2939 			 * 1. It hasn't been tested on a SAT layer that
2940 			 *    supports it.  This is new as of SAT-4.
2941 			 * 2. Even when there is a SAT layer that supports
2942 			 *    it, that SAT layer will also probably support
2943 			 *    ZBC -> ZAC translation, since they are both
2944 			 *    in the SAT-4 spec.
2945 			 * 3. Translation will likely be preferable to ATA
2946 			 *    passthrough.  LSI / Avago at least single
2947 			 *    steps ATA passthrough commands in the HBA,
2948 			 *    regardless of protocol, so unless that
2949 			 *    changes, there is a performance penalty for
2950 			 *    doing ATA passthrough no matter whether
2951 			 *    you're using NCQ/FPDMA, DMA or PIO.
2952 			 * 4. It requires a 32-byte CDB, which at least at
2953 			 *    this point in CAM requires a CDB pointer, which
2954 			 *    would require us to allocate an additional bit
2955 			 *    of storage separate from the CCB.
2956 			 */
2957 			error = scsi_ata_zac_mgmt_in(&ccb->csio,
2958 			    /*retries*/ da_retry_count,
2959 			    /*cbcfnp*/ dadone,
2960 			    /*tag_action*/ MSG_SIMPLE_Q_TAG,
2961 			    /*use_ncq*/ 0,
2962 			    /*zm_action*/ ATA_ZM_REPORT_ZONES,
2963 			    /*zone_id*/ rep->starting_id,
2964 			    /*zone_flags*/ rep->rep_options,
2965 			    /*data_ptr*/ rz_ptr,
2966 			    /*dxfer_len*/ alloc_size,
2967 			    /*cdb_storage*/ NULL,
2968 			    /*cdb_storage_len*/ 0,
2969 			    /*sense_len*/ SSD_FULL_SIZE,
2970 			    /*timeout*/ da_default_timeout * 1000);
2971 			if (error != 0) {
2972 				error = EINVAL;
2973 				xpt_print(periph->path,
2974 				    "scsi_ata_zac_mgmt_in() returned an "
2975 				    "error!");
2976 				goto bailout;
2977 			}
2978 		}
2979 
2980 		/*
2981 		 * For BIO_ZONE, this isn't normally needed.  However, it
2982 		 * is used by devstat_end_transaction_bio() to determine
2983 		 * how much data was transferred.
2984 		 */
2985 		/*
2986 		 * XXX KDM we have a problem.  But I'm not sure how to fix
2987 		 * it.  devstat uses bio_bcount - bio_resid to calculate
2988 		 * the amount of data transferred.   The GEOM disk code
2989 		 * uses bio_length - bio_resid to calculate the amount of
2990 		 * data in bio_completed.  We have different structure
2991 		 * sizes above and below the ada(4) driver.  So, if we
2992 		 * use the sizes above, the amount transferred won't be
2993 		 * quite accurate for devstat.  If we use different sizes
2994 		 * for bio_bcount and bio_length (above and below
2995 		 * respectively), then the residual needs to match one or
2996 		 * the other.  Everything is calculated after the bio
2997 		 * leaves the driver, so changing the values around isn't
2998 		 * really an option.  For now, just set the count to the
2999 		 * passed in length.  This means that the calculations
3000 		 * above (e.g. bio_completed) will be correct, but the
3001 		 * amount of data reported to devstat will be slightly
3002 		 * under or overstated.
3003 		 */
3004 		bp->bio_bcount = bp->bio_length;
3005 
3006 		*queue_ccb = 1;
3007 
3008 		break;
3009 	}
3010 	case DISK_ZONE_GET_PARAMS: {
3011 		struct disk_zone_disk_params *params;
3012 
3013 		params = &bp->bio_zone.zone_params.disk_params;
3014 		bzero(params, sizeof(*params));
3015 
3016 		switch (softc->zone_mode) {
3017 		case DA_ZONE_DRIVE_MANAGED:
3018 			params->zone_mode = DISK_ZONE_MODE_DRIVE_MANAGED;
3019 			break;
3020 		case DA_ZONE_HOST_AWARE:
3021 			params->zone_mode = DISK_ZONE_MODE_HOST_AWARE;
3022 			break;
3023 		case DA_ZONE_HOST_MANAGED:
3024 			params->zone_mode = DISK_ZONE_MODE_HOST_MANAGED;
3025 			break;
3026 		default:
3027 		case DA_ZONE_NONE:
3028 			params->zone_mode = DISK_ZONE_MODE_NONE;
3029 			break;
3030 		}
3031 
3032 		if (softc->zone_flags & DA_ZONE_FLAG_URSWRZ)
3033 			params->flags |= DISK_ZONE_DISK_URSWRZ;
3034 
3035 		if (softc->zone_flags & DA_ZONE_FLAG_OPT_SEQ_SET) {
3036 			params->optimal_seq_zones = softc->optimal_seq_zones;
3037 			params->flags |= DISK_ZONE_OPT_SEQ_SET;
3038 		}
3039 
3040 		if (softc->zone_flags & DA_ZONE_FLAG_OPT_NONSEQ_SET) {
3041 			params->optimal_nonseq_zones =
3042 			    softc->optimal_nonseq_zones;
3043 			params->flags |= DISK_ZONE_OPT_NONSEQ_SET;
3044 		}
3045 
3046 		if (softc->zone_flags & DA_ZONE_FLAG_MAX_SEQ_SET) {
3047 			params->max_seq_zones = softc->max_seq_zones;
3048 			params->flags |= DISK_ZONE_MAX_SEQ_SET;
3049 		}
3050 		if (softc->zone_flags & DA_ZONE_FLAG_RZ_SUP)
3051 			params->flags |= DISK_ZONE_RZ_SUP;
3052 
3053 		if (softc->zone_flags & DA_ZONE_FLAG_OPEN_SUP)
3054 			params->flags |= DISK_ZONE_OPEN_SUP;
3055 
3056 		if (softc->zone_flags & DA_ZONE_FLAG_CLOSE_SUP)
3057 			params->flags |= DISK_ZONE_CLOSE_SUP;
3058 
3059 		if (softc->zone_flags & DA_ZONE_FLAG_FINISH_SUP)
3060 			params->flags |= DISK_ZONE_FINISH_SUP;
3061 
3062 		if (softc->zone_flags & DA_ZONE_FLAG_RWP_SUP)
3063 			params->flags |= DISK_ZONE_RWP_SUP;
3064 		break;
3065 	}
3066 	default:
3067 		break;
3068 	}
3069 bailout:
3070 	return (error);
3071 }
3072 
3073 static void
3074 dastart(struct cam_periph *periph, union ccb *start_ccb)
3075 {
3076 	struct da_softc *softc;
3077 
3078 	softc = (struct da_softc *)periph->softc;
3079 
3080 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
3081 
3082 skipstate:
3083 	switch (softc->state) {
3084 	case DA_STATE_NORMAL:
3085 	{
3086 		struct bio *bp;
3087 		uint8_t tag_code;
3088 
3089 more:
3090 		bp = cam_iosched_next_bio(softc->cam_iosched);
3091 		if (bp == NULL) {
3092 			if (cam_iosched_has_work_flags(softc->cam_iosched, DA_WORK_TUR)) {
3093 				cam_iosched_clr_work_flags(softc->cam_iosched, DA_WORK_TUR);
3094 				scsi_test_unit_ready(&start_ccb->csio,
3095 				     /*retries*/ da_retry_count,
3096 				     dadone,
3097 				     MSG_SIMPLE_Q_TAG,
3098 				     SSD_FULL_SIZE,
3099 				     da_default_timeout * 1000);
3100 				start_ccb->ccb_h.ccb_bp = NULL;
3101 				start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
3102 				xpt_action(start_ccb);
3103 			} else
3104 				xpt_release_ccb(start_ccb);
3105 			break;
3106 		}
3107 
3108 		if (bp->bio_cmd == BIO_DELETE) {
3109 			if (softc->delete_func != NULL) {
3110 				softc->delete_func(periph, start_ccb, bp);
3111 				goto out;
3112 			} else {
3113 				/* Not sure this is possible, but failsafe by lying and saying "sure, done." */
3114 				biofinish(bp, NULL, 0);
3115 				goto more;
3116 			}
3117 		}
3118 
3119 		if (cam_iosched_has_work_flags(softc->cam_iosched, DA_WORK_TUR)) {
3120 			cam_iosched_clr_work_flags(softc->cam_iosched, DA_WORK_TUR);
3121 			da_periph_release_locked(periph, DA_REF_TUR);
3122 		}
3123 
3124 		if ((bp->bio_flags & BIO_ORDERED) != 0 ||
3125 		    (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
3126 			softc->flags &= ~DA_FLAG_NEED_OTAG;
3127 			softc->flags |= DA_FLAG_WAS_OTAG;
3128 			tag_code = MSG_ORDERED_Q_TAG;
3129 		} else {
3130 			tag_code = MSG_SIMPLE_Q_TAG;
3131 		}
3132 
3133 		switch (bp->bio_cmd) {
3134 		case BIO_WRITE:
3135 		case BIO_READ:
3136 		{
3137 			void *data_ptr;
3138 			int rw_op;
3139 
3140 			biotrack(bp, __func__);
3141 
3142 			if (bp->bio_cmd == BIO_WRITE) {
3143 				softc->flags |= DA_FLAG_DIRTY;
3144 				rw_op = SCSI_RW_WRITE;
3145 			} else {
3146 				rw_op = SCSI_RW_READ;
3147 			}
3148 
3149 			data_ptr = bp->bio_data;
3150 			if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) {
3151 				rw_op |= SCSI_RW_BIO;
3152 				data_ptr = bp;
3153 			}
3154 
3155 			scsi_read_write(&start_ccb->csio,
3156 					/*retries*/da_retry_count,
3157 					/*cbfcnp*/dadone,
3158 					/*tag_action*/tag_code,
3159 					rw_op,
3160 					/*byte2*/0,
3161 					softc->minimum_cmd_size,
3162 					/*lba*/bp->bio_pblkno,
3163 					/*block_count*/bp->bio_bcount /
3164 					softc->params.secsize,
3165 					data_ptr,
3166 					/*dxfer_len*/ bp->bio_bcount,
3167 					/*sense_len*/SSD_FULL_SIZE,
3168 					da_default_timeout * 1000);
3169 #if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING)
3170 			start_ccb->csio.bio = bp;
3171 #endif
3172 			break;
3173 		}
3174 		case BIO_FLUSH:
3175 			/*
3176 			 * If we don't support sync cache, or the disk
3177 			 * isn't dirty, FLUSH is a no-op.  Use the
3178 			 * allocated * CCB for the next bio if one is
3179 			 * available.
3180 			 */
3181 			if ((softc->quirks & DA_Q_NO_SYNC_CACHE) != 0 ||
3182 			    (softc->flags & DA_FLAG_DIRTY) == 0) {
3183 				biodone(bp);
3184 				goto skipstate;
3185 			}
3186 
3187 			/*
3188 			 * BIO_FLUSH doesn't currently communicate
3189 			 * range data, so we synchronize the cache
3190 			 * over the whole disk.  We also force
3191 			 * ordered tag semantics the flush applies
3192 			 * to all previously queued I/O.
3193 			 */
3194 			scsi_synchronize_cache(&start_ccb->csio,
3195 					       /*retries*/1,
3196 					       /*cbfcnp*/dadone,
3197 					       MSG_ORDERED_Q_TAG,
3198 					       /*begin_lba*/0,
3199 					       /*lb_count*/0,
3200 					       SSD_FULL_SIZE,
3201 					       da_default_timeout*1000);
3202 			/*
3203 			 * Clear the dirty flag before sending the command.
3204 			 * Either this sync cache will be successful, or it
3205 			 * will fail after a retry.  If it fails, it is
3206 			 * unlikely to be successful if retried later, so
3207 			 * we'll save ourselves time by just marking the
3208 			 * device clean.
3209 			 */
3210 			softc->flags &= ~DA_FLAG_DIRTY;
3211 			break;
3212 		case BIO_ZONE: {
3213 			int error, queue_ccb;
3214 
3215 			queue_ccb = 0;
3216 
3217 			error = da_zone_cmd(periph, start_ccb, bp,&queue_ccb);
3218 			if ((error != 0)
3219 			 || (queue_ccb == 0)) {
3220 				biofinish(bp, NULL, error);
3221 				xpt_release_ccb(start_ccb);
3222 				return;
3223 			}
3224 			break;
3225 		}
3226 		}
3227 		start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
3228 		start_ccb->ccb_h.flags |= CAM_UNLOCKED;
3229 		start_ccb->ccb_h.softtimeout = sbttotv(da_default_softtimeout);
3230 
3231 out:
3232 		LIST_INSERT_HEAD(&softc->pending_ccbs,
3233 				 &start_ccb->ccb_h, periph_links.le);
3234 
3235 		/* We expect a unit attention from this device */
3236 		if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
3237 			start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
3238 			softc->flags &= ~DA_FLAG_RETRY_UA;
3239 		}
3240 
3241 		start_ccb->ccb_h.ccb_bp = bp;
3242 		softc->refcount++;
3243 		cam_periph_unlock(periph);
3244 		xpt_action(start_ccb);
3245 		cam_periph_lock(periph);
3246 		softc->refcount--;
3247 
3248 		/* May have more work to do, so ensure we stay scheduled */
3249 		daschedule(periph);
3250 		break;
3251 	}
3252 	case DA_STATE_PROBE_WP:
3253 	{
3254 		void  *mode_buf;
3255 		int    mode_buf_len;
3256 
3257 		mode_buf_len = 192;
3258 		mode_buf = malloc(mode_buf_len, M_SCSIDA, M_NOWAIT);
3259 		if (mode_buf == NULL) {
3260 			xpt_print(periph->path, "Unable to send mode sense - "
3261 			    "malloc failure\n");
3262 			softc->state = DA_STATE_PROBE_RC;
3263 			goto skipstate;
3264 		}
3265 		scsi_mode_sense_len(&start_ccb->csio,
3266 				    /*retries*/ da_retry_count,
3267 				    /*cbfcnp*/ dadone,
3268 				    /*tag_action*/ MSG_SIMPLE_Q_TAG,
3269 				    /*dbd*/ FALSE,
3270 				    /*pc*/ SMS_PAGE_CTRL_CURRENT,
3271 				    /*page*/ SMS_ALL_PAGES_PAGE,
3272 				    /*param_buf*/ mode_buf,
3273 				    /*param_len*/ mode_buf_len,
3274 				    /*minimum_cmd_size*/ softc->minimum_cmd_size,
3275 				    /*sense_len*/ SSD_FULL_SIZE,
3276 				    /*timeout*/ da_default_timeout * 1000);
3277 		start_ccb->ccb_h.ccb_bp = NULL;
3278 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_WP;
3279 		xpt_action(start_ccb);
3280 		break;
3281 	}
3282 	case DA_STATE_PROBE_RC:
3283 	{
3284 		struct scsi_read_capacity_data *rcap;
3285 
3286 		rcap = (struct scsi_read_capacity_data *)
3287 		    malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
3288 		if (rcap == NULL) {
3289 			printf("dastart: Couldn't malloc read_capacity data\n");
3290 			/* da_free_periph??? */
3291 			break;
3292 		}
3293 		scsi_read_capacity(&start_ccb->csio,
3294 				   /*retries*/da_retry_count,
3295 				   dadone,
3296 				   MSG_SIMPLE_Q_TAG,
3297 				   rcap,
3298 				   SSD_FULL_SIZE,
3299 				   /*timeout*/5000);
3300 		start_ccb->ccb_h.ccb_bp = NULL;
3301 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
3302 		xpt_action(start_ccb);
3303 		break;
3304 	}
3305 	case DA_STATE_PROBE_RC16:
3306 	{
3307 		struct scsi_read_capacity_data_long *rcaplong;
3308 
3309 		rcaplong = (struct scsi_read_capacity_data_long *)
3310 			malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
3311 		if (rcaplong == NULL) {
3312 			printf("dastart: Couldn't malloc read_capacity data\n");
3313 			/* da_free_periph??? */
3314 			break;
3315 		}
3316 		scsi_read_capacity_16(&start_ccb->csio,
3317 				      /*retries*/ da_retry_count,
3318 				      /*cbfcnp*/ dadone,
3319 				      /*tag_action*/ MSG_SIMPLE_Q_TAG,
3320 				      /*lba*/ 0,
3321 				      /*reladr*/ 0,
3322 				      /*pmi*/ 0,
3323 				      /*rcap_buf*/ (uint8_t *)rcaplong,
3324 				      /*rcap_buf_len*/ sizeof(*rcaplong),
3325 				      /*sense_len*/ SSD_FULL_SIZE,
3326 				      /*timeout*/ da_default_timeout * 1000);
3327 		start_ccb->ccb_h.ccb_bp = NULL;
3328 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
3329 		xpt_action(start_ccb);
3330 		break;
3331 	}
3332 	case DA_STATE_PROBE_LBP:
3333 	{
3334 		struct scsi_vpd_logical_block_prov *lbp;
3335 
3336 		if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
3337 			/*
3338 			 * If we get here we don't support any SBC-3 delete
3339 			 * methods with UNMAP as the Logical Block Provisioning
3340 			 * VPD page support is required for devices which
3341 			 * support it according to T10/1799-D Revision 31
3342 			 * however older revisions of the spec don't mandate
3343 			 * this so we currently don't remove these methods
3344 			 * from the available set.
3345 			 */
3346 			softc->state = DA_STATE_PROBE_BLK_LIMITS;
3347 			goto skipstate;
3348 		}
3349 
3350 		lbp = (struct scsi_vpd_logical_block_prov *)
3351 			malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
3352 
3353 		if (lbp == NULL) {
3354 			printf("dastart: Couldn't malloc lbp data\n");
3355 			/* da_free_periph??? */
3356 			break;
3357 		}
3358 
3359 		scsi_inquiry(&start_ccb->csio,
3360 			     /*retries*/da_retry_count,
3361 			     /*cbfcnp*/dadone,
3362 			     /*tag_action*/MSG_SIMPLE_Q_TAG,
3363 			     /*inq_buf*/(u_int8_t *)lbp,
3364 			     /*inq_len*/sizeof(*lbp),
3365 			     /*evpd*/TRUE,
3366 			     /*page_code*/SVPD_LBP,
3367 			     /*sense_len*/SSD_MIN_SIZE,
3368 			     /*timeout*/da_default_timeout * 1000);
3369 		start_ccb->ccb_h.ccb_bp = NULL;
3370 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
3371 		xpt_action(start_ccb);
3372 		break;
3373 	}
3374 	case DA_STATE_PROBE_BLK_LIMITS:
3375 	{
3376 		struct scsi_vpd_block_limits *block_limits;
3377 
3378 		if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
3379 			/* Not supported skip to next probe */
3380 			softc->state = DA_STATE_PROBE_BDC;
3381 			goto skipstate;
3382 		}
3383 
3384 		block_limits = (struct scsi_vpd_block_limits *)
3385 			malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
3386 
3387 		if (block_limits == NULL) {
3388 			printf("dastart: Couldn't malloc block_limits data\n");
3389 			/* da_free_periph??? */
3390 			break;
3391 		}
3392 
3393 		scsi_inquiry(&start_ccb->csio,
3394 			     /*retries*/da_retry_count,
3395 			     /*cbfcnp*/dadone,
3396 			     /*tag_action*/MSG_SIMPLE_Q_TAG,
3397 			     /*inq_buf*/(u_int8_t *)block_limits,
3398 			     /*inq_len*/sizeof(*block_limits),
3399 			     /*evpd*/TRUE,
3400 			     /*page_code*/SVPD_BLOCK_LIMITS,
3401 			     /*sense_len*/SSD_MIN_SIZE,
3402 			     /*timeout*/da_default_timeout * 1000);
3403 		start_ccb->ccb_h.ccb_bp = NULL;
3404 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
3405 		xpt_action(start_ccb);
3406 		break;
3407 	}
3408 	case DA_STATE_PROBE_BDC:
3409 	{
3410 		struct scsi_vpd_block_characteristics *bdc;
3411 
3412 		if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
3413 			softc->state = DA_STATE_PROBE_ATA;
3414 			goto skipstate;
3415 		}
3416 
3417 		bdc = (struct scsi_vpd_block_characteristics *)
3418 			malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
3419 
3420 		if (bdc == NULL) {
3421 			printf("dastart: Couldn't malloc bdc data\n");
3422 			/* da_free_periph??? */
3423 			break;
3424 		}
3425 
3426 		scsi_inquiry(&start_ccb->csio,
3427 			     /*retries*/da_retry_count,
3428 			     /*cbfcnp*/dadone,
3429 			     /*tag_action*/MSG_SIMPLE_Q_TAG,
3430 			     /*inq_buf*/(u_int8_t *)bdc,
3431 			     /*inq_len*/sizeof(*bdc),
3432 			     /*evpd*/TRUE,
3433 			     /*page_code*/SVPD_BDC,
3434 			     /*sense_len*/SSD_MIN_SIZE,
3435 			     /*timeout*/da_default_timeout * 1000);
3436 		start_ccb->ccb_h.ccb_bp = NULL;
3437 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
3438 		xpt_action(start_ccb);
3439 		break;
3440 	}
3441 	case DA_STATE_PROBE_ATA:
3442 	{
3443 		struct ata_params *ata_params;
3444 
3445 		if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
3446 			if ((softc->zone_mode == DA_ZONE_HOST_AWARE)
3447 			 || (softc->zone_mode == DA_ZONE_HOST_MANAGED)) {
3448 				/*
3449 				 * Note that if the ATA VPD page isn't
3450 				 * supported, we aren't talking to an ATA
3451 				 * device anyway.  Support for that VPD
3452 				 * page is mandatory for SCSI to ATA (SAT)
3453 				 * translation layers.
3454 				 */
3455 				softc->state = DA_STATE_PROBE_ZONE;
3456 				goto skipstate;
3457 			}
3458 			daprobedone(periph, start_ccb);
3459 			break;
3460 		}
3461 
3462 		ata_params = (struct ata_params*)
3463 			malloc(sizeof(*ata_params), M_SCSIDA,M_NOWAIT|M_ZERO);
3464 
3465 		if (ata_params == NULL) {
3466 			xpt_print(periph->path, "Couldn't malloc ata_params "
3467 			    "data\n");
3468 			/* da_free_periph??? */
3469 			break;
3470 		}
3471 
3472 		scsi_ata_identify(&start_ccb->csio,
3473 				  /*retries*/da_retry_count,
3474 				  /*cbfcnp*/dadone,
3475                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
3476 				  /*data_ptr*/(u_int8_t *)ata_params,
3477 				  /*dxfer_len*/sizeof(*ata_params),
3478 				  /*sense_len*/SSD_FULL_SIZE,
3479 				  /*timeout*/da_default_timeout * 1000);
3480 		start_ccb->ccb_h.ccb_bp = NULL;
3481 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
3482 		xpt_action(start_ccb);
3483 		break;
3484 	}
3485 	case DA_STATE_PROBE_ATA_LOGDIR:
3486 	{
3487 		struct ata_gp_log_dir *log_dir;
3488 		int retval;
3489 
3490 		retval = 0;
3491 
3492 		if ((softc->flags & DA_FLAG_CAN_ATA_LOG) == 0) {
3493 			/*
3494 			 * If we don't have log support, not much point in
3495 			 * trying to probe zone support.
3496 			 */
3497 			daprobedone(periph, start_ccb);
3498 			break;
3499 		}
3500 
3501 		/*
3502 		 * If we have an ATA device (the SCSI ATA Information VPD
3503 		 * page should be present and the ATA identify should have
3504 		 * succeeded) and it supports logs, ask for the log directory.
3505 		 */
3506 
3507 		log_dir = malloc(sizeof(*log_dir), M_SCSIDA, M_NOWAIT|M_ZERO);
3508 		if (log_dir == NULL) {
3509 			xpt_print(periph->path, "Couldn't malloc log_dir "
3510 			    "data\n");
3511 			daprobedone(periph, start_ccb);
3512 			break;
3513 		}
3514 
3515 		retval = scsi_ata_read_log(&start_ccb->csio,
3516 		    /*retries*/ da_retry_count,
3517 		    /*cbfcnp*/ dadone,
3518 		    /*tag_action*/ MSG_SIMPLE_Q_TAG,
3519 		    /*log_address*/ ATA_LOG_DIRECTORY,
3520 		    /*page_number*/ 0,
3521 		    /*block_count*/ 1,
3522 		    /*protocol*/ softc->flags & DA_FLAG_CAN_ATA_DMA ?
3523 				 AP_PROTO_DMA : AP_PROTO_PIO_IN,
3524 		    /*data_ptr*/ (uint8_t *)log_dir,
3525 		    /*dxfer_len*/ sizeof(*log_dir),
3526 		    /*sense_len*/ SSD_FULL_SIZE,
3527 		    /*timeout*/ da_default_timeout * 1000);
3528 
3529 		if (retval != 0) {
3530 			xpt_print(periph->path, "scsi_ata_read_log() failed!");
3531 			free(log_dir, M_SCSIDA);
3532 			daprobedone(periph, start_ccb);
3533 			break;
3534 		}
3535 		start_ccb->ccb_h.ccb_bp = NULL;
3536 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA_LOGDIR;
3537 		xpt_action(start_ccb);
3538 		break;
3539 	}
3540 	case DA_STATE_PROBE_ATA_IDDIR:
3541 	{
3542 		struct ata_identify_log_pages *id_dir;
3543 		int retval;
3544 
3545 		retval = 0;
3546 
3547 		/*
3548 		 * Check here to see whether the Identify Device log is
3549 		 * supported in the directory of logs.  If so, continue
3550 		 * with requesting the log of identify device pages.
3551 		 */
3552 		if ((softc->flags & DA_FLAG_CAN_ATA_IDLOG) == 0) {
3553 			daprobedone(periph, start_ccb);
3554 			break;
3555 		}
3556 
3557 		id_dir = malloc(sizeof(*id_dir), M_SCSIDA, M_NOWAIT | M_ZERO);
3558 		if (id_dir == NULL) {
3559 			xpt_print(periph->path, "Couldn't malloc id_dir "
3560 			    "data\n");
3561 			daprobedone(periph, start_ccb);
3562 			break;
3563 		}
3564 
3565 		retval = scsi_ata_read_log(&start_ccb->csio,
3566 		    /*retries*/ da_retry_count,
3567 		    /*cbfcnp*/ dadone,
3568 		    /*tag_action*/ MSG_SIMPLE_Q_TAG,
3569 		    /*log_address*/ ATA_IDENTIFY_DATA_LOG,
3570 		    /*page_number*/ ATA_IDL_PAGE_LIST,
3571 		    /*block_count*/ 1,
3572 		    /*protocol*/ softc->flags & DA_FLAG_CAN_ATA_DMA ?
3573 				 AP_PROTO_DMA : AP_PROTO_PIO_IN,
3574 		    /*data_ptr*/ (uint8_t *)id_dir,
3575 		    /*dxfer_len*/ sizeof(*id_dir),
3576 		    /*sense_len*/ SSD_FULL_SIZE,
3577 		    /*timeout*/ da_default_timeout * 1000);
3578 
3579 		if (retval != 0) {
3580 			xpt_print(periph->path, "scsi_ata_read_log() failed!");
3581 			free(id_dir, M_SCSIDA);
3582 			daprobedone(periph, start_ccb);
3583 			break;
3584 		}
3585 		start_ccb->ccb_h.ccb_bp = NULL;
3586 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA_IDDIR;
3587 		xpt_action(start_ccb);
3588 		break;
3589 	}
3590 	case DA_STATE_PROBE_ATA_SUP:
3591 	{
3592 		struct ata_identify_log_sup_cap *sup_cap;
3593 		int retval;
3594 
3595 		retval = 0;
3596 
3597 		/*
3598 		 * Check here to see whether the Supported Capabilities log
3599 		 * is in the list of Identify Device logs.
3600 		 */
3601 		if ((softc->flags & DA_FLAG_CAN_ATA_SUPCAP) == 0) {
3602 			daprobedone(periph, start_ccb);
3603 			break;
3604 		}
3605 
3606 		sup_cap = malloc(sizeof(*sup_cap), M_SCSIDA, M_NOWAIT|M_ZERO);
3607 		if (sup_cap == NULL) {
3608 			xpt_print(periph->path, "Couldn't malloc sup_cap "
3609 			    "data\n");
3610 			daprobedone(periph, start_ccb);
3611 			break;
3612 		}
3613 
3614 		retval = scsi_ata_read_log(&start_ccb->csio,
3615 		    /*retries*/ da_retry_count,
3616 		    /*cbfcnp*/ dadone,
3617 		    /*tag_action*/ MSG_SIMPLE_Q_TAG,
3618 		    /*log_address*/ ATA_IDENTIFY_DATA_LOG,
3619 		    /*page_number*/ ATA_IDL_SUP_CAP,
3620 		    /*block_count*/ 1,
3621 		    /*protocol*/ softc->flags & DA_FLAG_CAN_ATA_DMA ?
3622 				 AP_PROTO_DMA : AP_PROTO_PIO_IN,
3623 		    /*data_ptr*/ (uint8_t *)sup_cap,
3624 		    /*dxfer_len*/ sizeof(*sup_cap),
3625 		    /*sense_len*/ SSD_FULL_SIZE,
3626 		    /*timeout*/ da_default_timeout * 1000);
3627 
3628 		if (retval != 0) {
3629 			xpt_print(periph->path, "scsi_ata_read_log() failed!");
3630 			free(sup_cap, M_SCSIDA);
3631 			daprobedone(periph, start_ccb);
3632 			break;
3633 
3634 		}
3635 
3636 		start_ccb->ccb_h.ccb_bp = NULL;
3637 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA_SUP;
3638 		xpt_action(start_ccb);
3639 		break;
3640 	}
3641 	case DA_STATE_PROBE_ATA_ZONE:
3642 	{
3643 		struct ata_zoned_info_log *ata_zone;
3644 		int retval;
3645 
3646 		retval = 0;
3647 
3648 		/*
3649 		 * Check here to see whether the zoned device information
3650 		 * page is supported.  If so, continue on to request it.
3651 		 * If not, skip to DA_STATE_PROBE_LOG or done.
3652 		 */
3653 		if ((softc->flags & DA_FLAG_CAN_ATA_ZONE) == 0) {
3654 			daprobedone(periph, start_ccb);
3655 			break;
3656 		}
3657 		ata_zone = malloc(sizeof(*ata_zone), M_SCSIDA,
3658 				  M_NOWAIT|M_ZERO);
3659 		if (ata_zone == NULL) {
3660 			xpt_print(periph->path, "Couldn't malloc ata_zone "
3661 			    "data\n");
3662 			daprobedone(periph, start_ccb);
3663 			break;
3664 		}
3665 
3666 		retval = scsi_ata_read_log(&start_ccb->csio,
3667 		    /*retries*/ da_retry_count,
3668 		    /*cbfcnp*/ dadone,
3669 		    /*tag_action*/ MSG_SIMPLE_Q_TAG,
3670 		    /*log_address*/ ATA_IDENTIFY_DATA_LOG,
3671 		    /*page_number*/ ATA_IDL_ZDI,
3672 		    /*block_count*/ 1,
3673 		    /*protocol*/ softc->flags & DA_FLAG_CAN_ATA_DMA ?
3674 				 AP_PROTO_DMA : AP_PROTO_PIO_IN,
3675 		    /*data_ptr*/ (uint8_t *)ata_zone,
3676 		    /*dxfer_len*/ sizeof(*ata_zone),
3677 		    /*sense_len*/ SSD_FULL_SIZE,
3678 		    /*timeout*/ da_default_timeout * 1000);
3679 
3680 		if (retval != 0) {
3681 			xpt_print(periph->path, "scsi_ata_read_log() failed!");
3682 			free(ata_zone, M_SCSIDA);
3683 			daprobedone(periph, start_ccb);
3684 			break;
3685 		}
3686 		start_ccb->ccb_h.ccb_bp = NULL;
3687 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA_ZONE;
3688 		xpt_action(start_ccb);
3689 
3690 		break;
3691 	}
3692 	case DA_STATE_PROBE_ZONE:
3693 	{
3694 		struct scsi_vpd_zoned_bdc *bdc;
3695 
3696 		/*
3697 		 * Note that this page will be supported for SCSI protocol
3698 		 * devices that support ZBC (SMR devices), as well as ATA
3699 		 * protocol devices that are behind a SAT (SCSI to ATA
3700 		 * Translation) layer that supports converting ZBC commands
3701 		 * to their ZAC equivalents.
3702 		 */
3703 		if (!scsi_vpd_supported_page(periph, SVPD_ZONED_BDC)) {
3704 			daprobedone(periph, start_ccb);
3705 			break;
3706 		}
3707 		bdc = (struct scsi_vpd_zoned_bdc *)
3708 			malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
3709 
3710 		if (bdc == NULL) {
3711 			xpt_release_ccb(start_ccb);
3712 			xpt_print(periph->path, "Couldn't malloc zone VPD "
3713 			    "data\n");
3714 			break;
3715 		}
3716 		scsi_inquiry(&start_ccb->csio,
3717 			     /*retries*/da_retry_count,
3718 			     /*cbfcnp*/dadone,
3719 			     /*tag_action*/MSG_SIMPLE_Q_TAG,
3720 			     /*inq_buf*/(u_int8_t *)bdc,
3721 			     /*inq_len*/sizeof(*bdc),
3722 			     /*evpd*/TRUE,
3723 			     /*page_code*/SVPD_ZONED_BDC,
3724 			     /*sense_len*/SSD_FULL_SIZE,
3725 			     /*timeout*/da_default_timeout * 1000);
3726 		start_ccb->ccb_h.ccb_bp = NULL;
3727 		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ZONE;
3728 		xpt_action(start_ccb);
3729 		break;
3730 	}
3731 	}
3732 }
3733 
3734 /*
3735  * In each of the methods below, while its the caller's
3736  * responsibility to ensure the request will fit into a
3737  * single device request, we might have changed the delete
3738  * method due to the device incorrectly advertising either
3739  * its supported methods or limits.
3740  *
3741  * To prevent this causing further issues we validate the
3742  * against the methods limits, and warn which would
3743  * otherwise be unnecessary.
3744  */
3745 static void
3746 da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
3747 {
3748 	struct da_softc *softc = (struct da_softc *)periph->softc;;
3749 	struct bio *bp1;
3750 	uint8_t *buf = softc->unmap_buf;
3751 	struct scsi_unmap_desc *d = (void *)&buf[UNMAP_HEAD_SIZE];
3752 	uint64_t lba, lastlba = (uint64_t)-1;
3753 	uint64_t totalcount = 0;
3754 	uint64_t count;
3755 	uint32_t c, lastcount = 0, ranges = 0;
3756 
3757 	/*
3758 	 * Currently this doesn't take the UNMAP
3759 	 * Granularity and Granularity Alignment
3760 	 * fields into account.
3761 	 *
3762 	 * This could result in both unoptimal unmap
3763 	 * requests as as well as UNMAP calls unmapping
3764 	 * fewer LBA's than requested.
3765 	 */
3766 
3767 	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
3768 	bp1 = bp;
3769 	do {
3770 		/*
3771 		 * Note: ada and da are different in how they store the
3772 		 * pending bp's in a trim. ada stores all of them in the
3773 		 * trim_req.bps. da stores all but the first one in the
3774 		 * delete_run_queue. ada then completes all the bps in
3775 		 * its adadone() loop. da completes all the bps in the
3776 		 * delete_run_queue in dadone, and relies on the biodone
3777 		 * after to complete. This should be reconciled since there's
3778 		 * no real reason to do it differently. XXX
3779 		 */
3780 		if (bp1 != bp)
3781 			bioq_insert_tail(&softc->delete_run_queue, bp1);
3782 		lba = bp1->bio_pblkno;
3783 		count = bp1->bio_bcount / softc->params.secsize;
3784 
3785 		/* Try to extend the previous range. */
3786 		if (lba == lastlba) {
3787 			c = omin(count, UNMAP_RANGE_MAX - lastcount);
3788 			lastlba += c;
3789 			lastcount += c;
3790 			scsi_ulto4b(lastcount, d[ranges - 1].length);
3791 			count -= c;
3792 			lba += c;
3793 			totalcount += c;
3794 		} else if ((softc->quirks & DA_Q_STRICT_UNMAP) &&
3795 		    softc->unmap_gran != 0) {
3796 			/* Align length of the previous range. */
3797 			if ((c = lastcount % softc->unmap_gran) != 0) {
3798 				if (lastcount <= c) {
3799 					totalcount -= lastcount;
3800 					lastlba = (uint64_t)-1;
3801 					lastcount = 0;
3802 					ranges--;
3803 				} else {
3804 					totalcount -= c;
3805 					lastlba -= c;
3806 					lastcount -= c;
3807 					scsi_ulto4b(lastcount, d[ranges - 1].length);
3808 				}
3809 			}
3810 			/* Align beginning of the new range. */
3811 			c = (lba - softc->unmap_gran_align) % softc->unmap_gran;
3812 			if (c != 0) {
3813 				c = softc->unmap_gran - c;
3814 				if (count <= c) {
3815 					count = 0;
3816 				} else {
3817 					lba += c;
3818 					count -= c;
3819 				}
3820 			}
3821 		}
3822 
3823 		while (count > 0) {
3824 			c = omin(count, UNMAP_RANGE_MAX);
3825 			if (totalcount + c > softc->unmap_max_lba ||
3826 			    ranges >= softc->unmap_max_ranges) {
3827 				xpt_print(periph->path,
3828 				    "%s issuing short delete %ld > %ld"
3829 				    "|| %d >= %d",
3830 				    da_delete_method_desc[softc->delete_method],
3831 				    totalcount + c, softc->unmap_max_lba,
3832 				    ranges, softc->unmap_max_ranges);
3833 				break;
3834 			}
3835 			scsi_u64to8b(lba, d[ranges].lba);
3836 			scsi_ulto4b(c, d[ranges].length);
3837 			lba += c;
3838 			totalcount += c;
3839 			ranges++;
3840 			count -= c;
3841 			lastlba = lba;
3842 			lastcount = c;
3843 		}
3844 		bp1 = cam_iosched_next_trim(softc->cam_iosched);
3845 		if (bp1 == NULL)
3846 			break;
3847 		if (ranges >= softc->unmap_max_ranges ||
3848 		    totalcount + bp1->bio_bcount /
3849 		    softc->params.secsize > softc->unmap_max_lba) {
3850 			cam_iosched_put_back_trim(softc->cam_iosched, bp1);
3851 			break;
3852 		}
3853 	} while (1);
3854 
3855 	/* Align length of the last range. */
3856 	if ((softc->quirks & DA_Q_STRICT_UNMAP) && softc->unmap_gran != 0 &&
3857 	    (c = lastcount % softc->unmap_gran) != 0) {
3858 		if (lastcount <= c)
3859 			ranges--;
3860 		else
3861 			scsi_ulto4b(lastcount - c, d[ranges - 1].length);
3862 	}
3863 
3864 	scsi_ulto2b(ranges * 16 + 6, &buf[0]);
3865 	scsi_ulto2b(ranges * 16, &buf[2]);
3866 
3867 	scsi_unmap(&ccb->csio,
3868 		   /*retries*/da_retry_count,
3869 		   /*cbfcnp*/dadone,
3870 		   /*tag_action*/MSG_SIMPLE_Q_TAG,
3871 		   /*byte2*/0,
3872 		   /*data_ptr*/ buf,
3873 		   /*dxfer_len*/ ranges * 16 + 8,
3874 		   /*sense_len*/SSD_FULL_SIZE,
3875 		   da_default_timeout * 1000);
3876 	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
3877 	ccb->ccb_h.flags |= CAM_UNLOCKED;
3878 	cam_iosched_submit_trim(softc->cam_iosched);
3879 }
3880 
3881 static void
3882 da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
3883 {
3884 	struct da_softc *softc = (struct da_softc *)periph->softc;
3885 	struct bio *bp1;
3886 	uint8_t *buf = softc->unmap_buf;
3887 	uint64_t lastlba = (uint64_t)-1;
3888 	uint64_t count;
3889 	uint64_t lba;
3890 	uint32_t lastcount = 0, c, requestcount;
3891 	int ranges = 0, off, block_count;
3892 
3893 	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
3894 	bp1 = bp;
3895 	do {
3896 		if (bp1 != bp)//XXX imp XXX
3897 			bioq_insert_tail(&softc->delete_run_queue, bp1);
3898 		lba = bp1->bio_pblkno;
3899 		count = bp1->bio_bcount / softc->params.secsize;
3900 		requestcount = count;
3901 
3902 		/* Try to extend the previous range. */
3903 		if (lba == lastlba) {
3904 			c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
3905 			lastcount += c;
3906 			off = (ranges - 1) * 8;
3907 			buf[off + 6] = lastcount & 0xff;
3908 			buf[off + 7] = (lastcount >> 8) & 0xff;
3909 			count -= c;
3910 			lba += c;
3911 		}
3912 
3913 		while (count > 0) {
3914 			c = omin(count, ATA_DSM_RANGE_MAX);
3915 			off = ranges * 8;
3916 
3917 			buf[off + 0] = lba & 0xff;
3918 			buf[off + 1] = (lba >> 8) & 0xff;
3919 			buf[off + 2] = (lba >> 16) & 0xff;
3920 			buf[off + 3] = (lba >> 24) & 0xff;
3921 			buf[off + 4] = (lba >> 32) & 0xff;
3922 			buf[off + 5] = (lba >> 40) & 0xff;
3923 			buf[off + 6] = c & 0xff;
3924 			buf[off + 7] = (c >> 8) & 0xff;
3925 			lba += c;
3926 			ranges++;
3927 			count -= c;
3928 			lastcount = c;
3929 			if (count != 0 && ranges == softc->trim_max_ranges) {
3930 				xpt_print(periph->path,
3931 				    "%s issuing short delete %ld > %ld\n",
3932 				    da_delete_method_desc[softc->delete_method],
3933 				    requestcount,
3934 				    (softc->trim_max_ranges - ranges) *
3935 				    ATA_DSM_RANGE_MAX);
3936 				break;
3937 			}
3938 		}
3939 		lastlba = lba;
3940 		bp1 = cam_iosched_next_trim(softc->cam_iosched);
3941 		if (bp1 == NULL)
3942 			break;
3943 		if (bp1->bio_bcount / softc->params.secsize >
3944 		    (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX) {
3945 			cam_iosched_put_back_trim(softc->cam_iosched, bp1);
3946 			break;
3947 		}
3948 	} while (1);
3949 
3950 	block_count = howmany(ranges, ATA_DSM_BLK_RANGES);
3951 	scsi_ata_trim(&ccb->csio,
3952 		      /*retries*/da_retry_count,
3953 		      /*cbfcnp*/dadone,
3954 		      /*tag_action*/MSG_SIMPLE_Q_TAG,
3955 		      block_count,
3956 		      /*data_ptr*/buf,
3957 		      /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
3958 		      /*sense_len*/SSD_FULL_SIZE,
3959 		      da_default_timeout * 1000);
3960 	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
3961 	ccb->ccb_h.flags |= CAM_UNLOCKED;
3962 	cam_iosched_submit_trim(softc->cam_iosched);
3963 }
3964 
3965 /*
3966  * We calculate ws_max_blks here based off d_delmaxsize instead
3967  * of using softc->ws_max_blks as it is absolute max for the
3968  * device not the protocol max which may well be lower.
3969  */
3970 static void
3971 da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
3972 {
3973 	struct da_softc *softc;
3974 	struct bio *bp1;
3975 	uint64_t ws_max_blks;
3976 	uint64_t lba;
3977 	uint64_t count; /* forward compat with WS32 */
3978 
3979 	softc = (struct da_softc *)periph->softc;
3980 	ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
3981 	lba = bp->bio_pblkno;
3982 	count = 0;
3983 	bp1 = bp;
3984 	do {
3985 		if (bp1 != bp)//XXX imp XXX
3986 			bioq_insert_tail(&softc->delete_run_queue, bp1);
3987 		count += bp1->bio_bcount / softc->params.secsize;
3988 		if (count > ws_max_blks) {
3989 			xpt_print(periph->path,
3990 			    "%s issuing short delete %ld > %ld\n",
3991 			    da_delete_method_desc[softc->delete_method],
3992 			    count, ws_max_blks);
3993 			count = omin(count, ws_max_blks);
3994 			break;
3995 		}
3996 		bp1 = cam_iosched_next_trim(softc->cam_iosched);
3997 		if (bp1 == NULL)
3998 			break;
3999 		if (lba + count != bp1->bio_pblkno ||
4000 		    count + bp1->bio_bcount /
4001 		    softc->params.secsize > ws_max_blks) {
4002 			cam_iosched_put_back_trim(softc->cam_iosched, bp1);
4003 			break;
4004 		}
4005 	} while (1);
4006 
4007 	scsi_write_same(&ccb->csio,
4008 			/*retries*/da_retry_count,
4009 			/*cbfcnp*/dadone,
4010 			/*tag_action*/MSG_SIMPLE_Q_TAG,
4011 			/*byte2*/softc->delete_method ==
4012 			    DA_DELETE_ZERO ? 0 : SWS_UNMAP,
4013 			softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
4014 			/*lba*/lba,
4015 			/*block_count*/count,
4016 			/*data_ptr*/ __DECONST(void *, zero_region),
4017 			/*dxfer_len*/ softc->params.secsize,
4018 			/*sense_len*/SSD_FULL_SIZE,
4019 			da_default_timeout * 1000);
4020 	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
4021 	ccb->ccb_h.flags |= CAM_UNLOCKED;
4022 	cam_iosched_submit_trim(softc->cam_iosched);
4023 }
4024 
4025 static int
4026 cmd6workaround(union ccb *ccb)
4027 {
4028 	struct scsi_rw_6 cmd6;
4029 	struct scsi_rw_10 *cmd10;
4030 	struct da_softc *softc;
4031 	u_int8_t *cdb;
4032 	struct bio *bp;
4033 	int frozen;
4034 
4035 	cdb = ccb->csio.cdb_io.cdb_bytes;
4036 	softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
4037 
4038 	if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
4039 		da_delete_methods old_method = softc->delete_method;
4040 
4041 		/*
4042 		 * Typically there are two reasons for failure here
4043 		 * 1. Delete method was detected as supported but isn't
4044 		 * 2. Delete failed due to invalid params e.g. too big
4045 		 *
4046 		 * While we will attempt to choose an alternative delete method
4047 		 * this may result in short deletes if the existing delete
4048 		 * requests from geom are big for the new method chosen.
4049 		 *
4050 		 * This method assumes that the error which triggered this
4051 		 * will not retry the io otherwise a panic will occur
4052 		 */
4053 		dadeleteflag(softc, old_method, 0);
4054 		dadeletemethodchoose(softc, DA_DELETE_DISABLE);
4055 		if (softc->delete_method == DA_DELETE_DISABLE)
4056 			xpt_print(ccb->ccb_h.path,
4057 				  "%s failed, disabling BIO_DELETE\n",
4058 				  da_delete_method_desc[old_method]);
4059 		else
4060 			xpt_print(ccb->ccb_h.path,
4061 				  "%s failed, switching to %s BIO_DELETE\n",
4062 				  da_delete_method_desc[old_method],
4063 				  da_delete_method_desc[softc->delete_method]);
4064 
4065 		while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
4066 			cam_iosched_queue_work(softc->cam_iosched, bp);
4067 		cam_iosched_queue_work(softc->cam_iosched,
4068 		    (struct bio *)ccb->ccb_h.ccb_bp);
4069 		ccb->ccb_h.ccb_bp = NULL;
4070 		return (0);
4071 	}
4072 
4073 	/* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
4074 	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
4075 	    (*cdb == PREVENT_ALLOW) &&
4076 	    (softc->quirks & DA_Q_NO_PREVENT) == 0) {
4077 		if (bootverbose)
4078 			xpt_print(ccb->ccb_h.path,
4079 			    "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
4080 		softc->quirks |= DA_Q_NO_PREVENT;
4081 		return (0);
4082 	}
4083 
4084 	/* Detect unsupported SYNCHRONIZE CACHE(10). */
4085 	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
4086 	    (*cdb == SYNCHRONIZE_CACHE) &&
4087 	    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
4088 		if (bootverbose)
4089 			xpt_print(ccb->ccb_h.path,
4090 			    "SYNCHRONIZE CACHE(10) not supported.\n");
4091 		softc->quirks |= DA_Q_NO_SYNC_CACHE;
4092 		softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
4093 		return (0);
4094 	}
4095 
4096 	/* Translation only possible if CDB is an array and cmd is R/W6 */
4097 	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
4098 	    (*cdb != READ_6 && *cdb != WRITE_6))
4099 		return 0;
4100 
4101 	xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
4102 	    "increasing minimum_cmd_size to 10.\n");
4103 	softc->minimum_cmd_size = 10;
4104 
4105 	bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
4106 	cmd10 = (struct scsi_rw_10 *)cdb;
4107 	cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
4108 	cmd10->byte2 = 0;
4109 	scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
4110 	cmd10->reserved = 0;
4111 	scsi_ulto2b(cmd6.length, cmd10->length);
4112 	cmd10->control = cmd6.control;
4113 	ccb->csio.cdb_len = sizeof(*cmd10);
4114 
4115 	/* Requeue request, unfreezing queue if necessary */
4116 	frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
4117 	ccb->ccb_h.status = CAM_REQUEUE_REQ;
4118 	xpt_action(ccb);
4119 	if (frozen) {
4120 		cam_release_devq(ccb->ccb_h.path,
4121 				 /*relsim_flags*/0,
4122 				 /*reduction*/0,
4123 				 /*timeout*/0,
4124 				 /*getcount_only*/0);
4125 	}
4126 	return (ERESTART);
4127 }
4128 
4129 static void
4130 dazonedone(struct cam_periph *periph, union ccb *ccb)
4131 {
4132 	struct da_softc *softc;
4133 	struct bio *bp;
4134 
4135 	softc = periph->softc;
4136 	bp = (struct bio *)ccb->ccb_h.ccb_bp;
4137 
4138 	switch (bp->bio_zone.zone_cmd) {
4139 	case DISK_ZONE_OPEN:
4140 	case DISK_ZONE_CLOSE:
4141 	case DISK_ZONE_FINISH:
4142 	case DISK_ZONE_RWP:
4143 		break;
4144 	case DISK_ZONE_REPORT_ZONES: {
4145 		uint32_t avail_len;
4146 		struct disk_zone_report *rep;
4147 		struct scsi_report_zones_hdr *hdr;
4148 		struct scsi_report_zones_desc *desc;
4149 		struct disk_zone_rep_entry *entry;
4150 		uint32_t hdr_len, num_avail;
4151 		uint32_t num_to_fill, i;
4152 		int ata;
4153 
4154 		rep = &bp->bio_zone.zone_params.report;
4155 		avail_len = ccb->csio.dxfer_len - ccb->csio.resid;
4156 		/*
4157 		 * Note that bio_resid isn't normally used for zone
4158 		 * commands, but it is used by devstat_end_transaction_bio()
4159 		 * to determine how much data was transferred.  Because
4160 		 * the size of the SCSI/ATA data structures is different
4161 		 * than the size of the BIO interface structures, the
4162 		 * amount of data actually transferred from the drive will
4163 		 * be different than the amount of data transferred to
4164 		 * the user.
4165 		 */
4166 		bp->bio_resid = ccb->csio.resid;
4167 		hdr = (struct scsi_report_zones_hdr *)ccb->csio.data_ptr;
4168 		if (avail_len < sizeof(*hdr)) {
4169 			/*
4170 			 * Is there a better error than EIO here?  We asked
4171 			 * for at least the header, and we got less than
4172 			 * that.
4173 			 */
4174 			bp->bio_error = EIO;
4175 			bp->bio_flags |= BIO_ERROR;
4176 			bp->bio_resid = bp->bio_bcount;
4177 			break;
4178 		}
4179 
4180 		if (softc->zone_interface == DA_ZONE_IF_ATA_PASS)
4181 			ata = 1;
4182 		else
4183 			ata = 0;
4184 
4185 		hdr_len = ata ? le32dec(hdr->length) :
4186 				scsi_4btoul(hdr->length);
4187 		if (hdr_len > 0)
4188 			rep->entries_available = hdr_len / sizeof(*desc);
4189 		else
4190 			rep->entries_available = 0;
4191 		/*
4192 		 * NOTE: using the same values for the BIO version of the
4193 		 * same field as the SCSI/ATA values.  This means we could
4194 		 * get some additional values that aren't defined in bio.h
4195 		 * if more values of the same field are defined later.
4196 		 */
4197 		rep->header.same = hdr->byte4 & SRZ_SAME_MASK;
4198 		rep->header.maximum_lba = ata ?  le64dec(hdr->maximum_lba) :
4199 					  scsi_8btou64(hdr->maximum_lba);
4200 		/*
4201 		 * If the drive reports no entries that match the query,
4202 		 * we're done.
4203 		 */
4204 		if (hdr_len == 0) {
4205 			rep->entries_filled = 0;
4206 			break;
4207 		}
4208 
4209 		num_avail = min((avail_len - sizeof(*hdr)) / sizeof(*desc),
4210 				hdr_len / sizeof(*desc));
4211 		/*
4212 		 * If the drive didn't return any data, then we're done.
4213 		 */
4214 		if (num_avail == 0) {
4215 			rep->entries_filled = 0;
4216 			break;
4217 		}
4218 
4219 		num_to_fill = min(num_avail, rep->entries_allocated);
4220 		/*
4221 		 * If the user didn't allocate any entries for us to fill,
4222 		 * we're done.
4223 		 */
4224 		if (num_to_fill == 0) {
4225 			rep->entries_filled = 0;
4226 			break;
4227 		}
4228 
4229 		for (i = 0, desc = &hdr->desc_list[0], entry=&rep->entries[0];
4230 		     i < num_to_fill; i++, desc++, entry++) {
4231 			/*
4232 			 * NOTE: we're mapping the values here directly
4233 			 * from the SCSI/ATA bit definitions to the bio.h
4234 			 * definitons.  There is also a warning in
4235 			 * disk_zone.h, but the impact is that if
4236 			 * additional values are added in the SCSI/ATA
4237 			 * specs these will be visible to consumers of
4238 			 * this interface.
4239 			 */
4240 			entry->zone_type = desc->zone_type & SRZ_TYPE_MASK;
4241 			entry->zone_condition =
4242 			    (desc->zone_flags & SRZ_ZONE_COND_MASK) >>
4243 			    SRZ_ZONE_COND_SHIFT;
4244 			entry->zone_flags |= desc->zone_flags &
4245 			    (SRZ_ZONE_NON_SEQ|SRZ_ZONE_RESET);
4246 			entry->zone_length =
4247 			    ata ? le64dec(desc->zone_length) :
4248 				  scsi_8btou64(desc->zone_length);
4249 			entry->zone_start_lba =
4250 			    ata ? le64dec(desc->zone_start_lba) :
4251 				  scsi_8btou64(desc->zone_start_lba);
4252 			entry->write_pointer_lba =
4253 			    ata ? le64dec(desc->write_pointer_lba) :
4254 				  scsi_8btou64(desc->write_pointer_lba);
4255 		}
4256 		rep->entries_filled = num_to_fill;
4257 		break;
4258 	}
4259 	case DISK_ZONE_GET_PARAMS:
4260 	default:
4261 		/*
4262 		 * In theory we should not get a GET_PARAMS bio, since it
4263 		 * should be handled without queueing the command to the
4264 		 * drive.
4265 		 */
4266 		panic("%s: Invalid zone command %d", __func__,
4267 		    bp->bio_zone.zone_cmd);
4268 		break;
4269 	}
4270 
4271 	if (bp->bio_zone.zone_cmd == DISK_ZONE_REPORT_ZONES)
4272 		free(ccb->csio.data_ptr, M_SCSIDA);
4273 }
4274 
4275 static void
4276 dadone(struct cam_periph *periph, union ccb *done_ccb)
4277 {
4278 	struct da_softc *softc;
4279 	struct ccb_scsiio *csio;
4280 	u_int32_t  priority;
4281 	da_ccb_state state;
4282 
4283 	softc = (struct da_softc *)periph->softc;
4284 	priority = done_ccb->ccb_h.pinfo.priority;
4285 
4286 	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
4287 
4288 	csio = &done_ccb->csio;
4289 #if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING)
4290 	if (csio->bio != NULL)
4291 		biotrack(csio->bio, __func__);
4292 #endif
4293 	state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
4294 	switch (state) {
4295 	case DA_CCB_BUFFER_IO:
4296 	case DA_CCB_DELETE:
4297 	{
4298 		struct bio *bp, *bp1;
4299 
4300 		cam_periph_lock(periph);
4301 		bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
4302 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
4303 			int error;
4304 			int sf;
4305 
4306 			if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
4307 				sf = SF_RETRY_UA;
4308 			else
4309 				sf = 0;
4310 
4311 			error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
4312 			if (error == ERESTART) {
4313 				/*
4314 				 * A retry was scheduled, so
4315 				 * just return.
4316 				 */
4317 				cam_periph_unlock(periph);
4318 				return;
4319 			}
4320 			bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
4321 			if (error != 0) {
4322 				int queued_error;
4323 
4324 				/*
4325 				 * return all queued I/O with EIO, so that
4326 				 * the client can retry these I/Os in the
4327 				 * proper order should it attempt to recover.
4328 				 */
4329 				queued_error = EIO;
4330 
4331 				if (error == ENXIO
4332 				 && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
4333 					/*
4334 					 * Catastrophic error.  Mark our pack as
4335 					 * invalid.
4336 					 */
4337 					/*
4338 					 * XXX See if this is really a media
4339 					 * XXX change first?
4340 					 */
4341 					xpt_print(periph->path,
4342 					    "Invalidating pack\n");
4343 					softc->flags |= DA_FLAG_PACK_INVALID;
4344 #ifdef CAM_IO_STATS
4345 					softc->invalidations++;
4346 #endif
4347 					queued_error = ENXIO;
4348 				}
4349 				cam_iosched_flush(softc->cam_iosched, NULL,
4350 					   queued_error);
4351 				if (bp != NULL) {
4352 					bp->bio_error = error;
4353 					bp->bio_resid = bp->bio_bcount;
4354 					bp->bio_flags |= BIO_ERROR;
4355 				}
4356 			} else if (bp != NULL) {
4357 				if (state == DA_CCB_DELETE)
4358 					bp->bio_resid = 0;
4359 				else
4360 					bp->bio_resid = csio->resid;
4361 				bp->bio_error = 0;
4362 				if (bp->bio_resid != 0)
4363 					bp->bio_flags |= BIO_ERROR;
4364 			}
4365 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
4366 				cam_release_devq(done_ccb->ccb_h.path,
4367 						 /*relsim_flags*/0,
4368 						 /*reduction*/0,
4369 						 /*timeout*/0,
4370 						 /*getcount_only*/0);
4371 		} else if (bp != NULL) {
4372 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
4373 				panic("REQ_CMP with QFRZN");
4374 			if (bp->bio_cmd == BIO_ZONE)
4375 				dazonedone(periph, done_ccb);
4376 			else if (state == DA_CCB_DELETE)
4377 				bp->bio_resid = 0;
4378 			else
4379 				bp->bio_resid = csio->resid;
4380 			if ((csio->resid > 0)
4381 			 && (bp->bio_cmd != BIO_ZONE))
4382 				bp->bio_flags |= BIO_ERROR;
4383 			if (softc->error_inject != 0) {
4384 				bp->bio_error = softc->error_inject;
4385 				bp->bio_resid = bp->bio_bcount;
4386 				bp->bio_flags |= BIO_ERROR;
4387 				softc->error_inject = 0;
4388 			}
4389 		}
4390 
4391 		if (bp != NULL)
4392 			biotrack(bp, __func__);
4393 		LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
4394 		if (LIST_EMPTY(&softc->pending_ccbs))
4395 			softc->flags |= DA_FLAG_WAS_OTAG;
4396 
4397 		/*
4398 		 * We need to call cam_iosched before we call biodone so that we
4399 		 * don't measure any activity that happens in the completion
4400 		 * routine, which in the case of sendfile can be quite
4401 		 * extensive.
4402 		 */
4403 		cam_iosched_bio_complete(softc->cam_iosched, bp, done_ccb);
4404 		xpt_release_ccb(done_ccb);
4405 		if (state == DA_CCB_DELETE) {
4406 			TAILQ_HEAD(, bio) queue;
4407 
4408 			TAILQ_INIT(&queue);
4409 			TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
4410 			softc->delete_run_queue.insert_point = NULL;
4411 			/*
4412 			 * Normally, the xpt_release_ccb() above would make sure
4413 			 * that when we have more work to do, that work would
4414 			 * get kicked off. However, we specifically keep
4415 			 * delete_running set to 0 before the call above to
4416 			 * allow other I/O to progress when many BIO_DELETE
4417 			 * requests are pushed down. We set delete_running to 0
4418 			 * and call daschedule again so that we don't stall if
4419 			 * there are no other I/Os pending apart from BIO_DELETEs.
4420 			 */
4421 			cam_iosched_trim_done(softc->cam_iosched);
4422 			daschedule(periph);
4423 			cam_periph_unlock(periph);
4424 			while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
4425 				TAILQ_REMOVE(&queue, bp1, bio_queue);
4426 				bp1->bio_error = bp->bio_error;
4427 				if (bp->bio_flags & BIO_ERROR) {
4428 					bp1->bio_flags |= BIO_ERROR;
4429 					bp1->bio_resid = bp1->bio_bcount;
4430 				} else
4431 					bp1->bio_resid = 0;
4432 				biodone(bp1);
4433 			}
4434 		} else {
4435 			daschedule(periph);
4436 			cam_periph_unlock(periph);
4437 		}
4438 		if (bp != NULL)
4439 			biodone(bp);
4440 		return;
4441 	}
4442 	case DA_CCB_PROBE_WP:
4443 	{
4444 		struct scsi_mode_header_6 *mode_hdr6;
4445 		struct scsi_mode_header_10 *mode_hdr10;
4446 		uint8_t dev_spec;
4447 
4448 		if (softc->minimum_cmd_size > 6) {
4449 			mode_hdr10 = (struct scsi_mode_header_10 *)csio->data_ptr;
4450 			dev_spec = mode_hdr10->dev_spec;
4451 		} else {
4452 			mode_hdr6 = (struct scsi_mode_header_6 *)csio->data_ptr;
4453 			dev_spec = mode_hdr6->dev_spec;
4454 		}
4455 		if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) {
4456 			if ((dev_spec & 0x80) != 0)
4457 				softc->disk->d_flags |= DISKFLAG_WRITE_PROTECT;
4458 			else
4459 				softc->disk->d_flags &= ~DISKFLAG_WRITE_PROTECT;
4460 		} else {
4461 			int error;
4462 
4463 			error = daerror(done_ccb, CAM_RETRY_SELTO,
4464 					SF_RETRY_UA|SF_NO_PRINT);
4465 			if (error == ERESTART)
4466 				return;
4467 			else if (error != 0) {
4468 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
4469 					/* Don't wedge this device's queue */
4470 					cam_release_devq(done_ccb->ccb_h.path,
4471 							 /*relsim_flags*/0,
4472 							 /*reduction*/0,
4473 							 /*timeout*/0,
4474 							 /*getcount_only*/0);
4475 				}
4476 			}
4477 		}
4478 
4479 		free(csio->data_ptr, M_SCSIDA);
4480 		xpt_release_ccb(done_ccb);
4481 		if ((softc->flags & DA_FLAG_CAN_RC16) != 0)
4482 			softc->state = DA_STATE_PROBE_RC16;
4483 		else
4484 			softc->state = DA_STATE_PROBE_RC;
4485 		xpt_schedule(periph, priority);
4486 		return;
4487 	}
4488 	case DA_CCB_PROBE_RC:
4489 	case DA_CCB_PROBE_RC16:
4490 	{
4491 		struct	   scsi_read_capacity_data *rdcap;
4492 		struct     scsi_read_capacity_data_long *rcaplong;
4493 		char	   *announce_buf;
4494 		int	   lbp;
4495 
4496 		lbp = 0;
4497 		rdcap = NULL;
4498 		rcaplong = NULL;
4499 		/* XXX TODO: can this be a malloc? */
4500 		announce_buf = softc->announce_temp;
4501 		bzero(announce_buf, DA_ANNOUNCETMP_SZ);
4502 
4503 		if (state == DA_CCB_PROBE_RC)
4504 			rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
4505 		else
4506 			rcaplong = (struct scsi_read_capacity_data_long *)
4507 				csio->data_ptr;
4508 
4509 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
4510 			struct disk_params *dp;
4511 			uint32_t block_size;
4512 			uint64_t maxsector;
4513 			u_int lalba;	/* Lowest aligned LBA. */
4514 
4515 			if (state == DA_CCB_PROBE_RC) {
4516 				block_size = scsi_4btoul(rdcap->length);
4517 				maxsector = scsi_4btoul(rdcap->addr);
4518 				lalba = 0;
4519 
4520 				/*
4521 				 * According to SBC-2, if the standard 10
4522 				 * byte READ CAPACITY command returns 2^32,
4523 				 * we should issue the 16 byte version of
4524 				 * the command, since the device in question
4525 				 * has more sectors than can be represented
4526 				 * with the short version of the command.
4527 				 */
4528 				if (maxsector == 0xffffffff) {
4529 					free(rdcap, M_SCSIDA);
4530 					xpt_release_ccb(done_ccb);
4531 					softc->state = DA_STATE_PROBE_RC16;
4532 					xpt_schedule(periph, priority);
4533 					return;
4534 				}
4535 			} else {
4536 				block_size = scsi_4btoul(rcaplong->length);
4537 				maxsector = scsi_8btou64(rcaplong->addr);
4538 				lalba = scsi_2btoul(rcaplong->lalba_lbp);
4539 			}
4540 
4541 			/*
4542 			 * Because GEOM code just will panic us if we
4543 			 * give them an 'illegal' value we'll avoid that
4544 			 * here.
4545 			 */
4546 			if (block_size == 0) {
4547 				block_size = 512;
4548 				if (maxsector == 0)
4549 					maxsector = -1;
4550 			}
4551 			if (block_size >= MAXPHYS) {
4552 				xpt_print(periph->path,
4553 				    "unsupportable block size %ju\n",
4554 				    (uintmax_t) block_size);
4555 				announce_buf = NULL;
4556 				cam_periph_invalidate(periph);
4557 			} else {
4558 				/*
4559 				 * We pass rcaplong into dasetgeom(),
4560 				 * because it will only use it if it is
4561 				 * non-NULL.
4562 				 */
4563 				dasetgeom(periph, block_size, maxsector,
4564 					  rcaplong, sizeof(*rcaplong));
4565 				lbp = (lalba & SRC16_LBPME_A);
4566 				dp = &softc->params;
4567 				snprintf(announce_buf, DA_ANNOUNCETMP_SZ,
4568 				    "%juMB (%ju %u byte sectors)",
4569 				    ((uintmax_t)dp->secsize * dp->sectors) /
4570 				     (1024 * 1024),
4571 				    (uintmax_t)dp->sectors, dp->secsize);
4572 			}
4573 		} else {
4574 			int	error;
4575 
4576 			/*
4577 			 * Retry any UNIT ATTENTION type errors.  They
4578 			 * are expected at boot.
4579 			 */
4580 			error = daerror(done_ccb, CAM_RETRY_SELTO,
4581 					SF_RETRY_UA|SF_NO_PRINT);
4582 			if (error == ERESTART) {
4583 				/*
4584 				 * A retry was scheuled, so
4585 				 * just return.
4586 				 */
4587 				return;
4588 			} else if (error != 0) {
4589 				int asc, ascq;
4590 				int sense_key, error_code;
4591 				int have_sense;
4592 				cam_status status;
4593 				struct ccb_getdev cgd;
4594 
4595 				/* Don't wedge this device's queue */
4596 				status = done_ccb->ccb_h.status;
4597 				if ((status & CAM_DEV_QFRZN) != 0)
4598 					cam_release_devq(done_ccb->ccb_h.path,
4599 							 /*relsim_flags*/0,
4600 							 /*reduction*/0,
4601 							 /*timeout*/0,
4602 							 /*getcount_only*/0);
4603 
4604 
4605 				xpt_setup_ccb(&cgd.ccb_h,
4606 					      done_ccb->ccb_h.path,
4607 					      CAM_PRIORITY_NORMAL);
4608 				cgd.ccb_h.func_code = XPT_GDEV_TYPE;
4609 				xpt_action((union ccb *)&cgd);
4610 
4611 				if (scsi_extract_sense_ccb(done_ccb,
4612 				    &error_code, &sense_key, &asc, &ascq))
4613 					have_sense = TRUE;
4614 				else
4615 					have_sense = FALSE;
4616 
4617 				/*
4618 				 * If we tried READ CAPACITY(16) and failed,
4619 				 * fallback to READ CAPACITY(10).
4620 				 */
4621 				if ((state == DA_CCB_PROBE_RC16) &&
4622 				    (softc->flags & DA_FLAG_CAN_RC16) &&
4623 				    (((csio->ccb_h.status & CAM_STATUS_MASK) ==
4624 					CAM_REQ_INVALID) ||
4625 				     ((have_sense) &&
4626 				      (error_code == SSD_CURRENT_ERROR) &&
4627 				      (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
4628 					softc->flags &= ~DA_FLAG_CAN_RC16;
4629 					free(rdcap, M_SCSIDA);
4630 					xpt_release_ccb(done_ccb);
4631 					softc->state = DA_STATE_PROBE_RC;
4632 					xpt_schedule(periph, priority);
4633 					return;
4634 				}
4635 
4636 				/*
4637 				 * Attach to anything that claims to be a
4638 				 * direct access or optical disk device,
4639 				 * as long as it doesn't return a "Logical
4640 				 * unit not supported" (0x25) error.
4641 				 * "Internal Target Failure" (0x44) is also
4642 				 * special and typically means that the
4643 				 * device is a SATA drive behind a SATL
4644 				 * translation that's fallen into a
4645 				 * terminally fatal state.
4646 				 */
4647 				if ((have_sense)
4648 				 && (asc != 0x25) && (asc != 0x44)
4649 				 && (error_code == SSD_CURRENT_ERROR)) {
4650 					const char *sense_key_desc;
4651 					const char *asc_desc;
4652 
4653 					dasetgeom(periph, 512, -1, NULL, 0);
4654 					scsi_sense_desc(sense_key, asc, ascq,
4655 							&cgd.inq_data,
4656 							&sense_key_desc,
4657 							&asc_desc);
4658 					snprintf(announce_buf,
4659 					    DA_ANNOUNCETMP_SZ,
4660 					    "Attempt to query device "
4661 					    "size failed: %s, %s",
4662 					    sense_key_desc, asc_desc);
4663 				} else {
4664 					if (have_sense)
4665 						scsi_sense_print(
4666 							&done_ccb->csio);
4667 					else {
4668 						xpt_print(periph->path,
4669 						    "got CAM status %#x\n",
4670 						    done_ccb->ccb_h.status);
4671 					}
4672 
4673 					xpt_print(periph->path, "fatal error, "
4674 					    "failed to attach to device\n");
4675 
4676 					announce_buf = NULL;
4677 
4678 					/*
4679 					 * Free up resources.
4680 					 */
4681 					cam_periph_invalidate(periph);
4682 				}
4683 			}
4684 		}
4685 		free(csio->data_ptr, M_SCSIDA);
4686 		if (announce_buf != NULL &&
4687 		    ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
4688 			struct sbuf sb;
4689 
4690 			sbuf_new(&sb, softc->announcebuf, DA_ANNOUNCE_SZ,
4691 			    SBUF_FIXEDLEN);
4692 			xpt_announce_periph_sbuf(periph, &sb, announce_buf);
4693 			xpt_announce_quirks_sbuf(periph, &sb, softc->quirks,
4694 			    DA_Q_BIT_STRING);
4695 			sbuf_finish(&sb);
4696 			sbuf_putbuf(&sb);
4697 
4698 			/*
4699 			 * Create our sysctl variables, now that we know
4700 			 * we have successfully attached.
4701 			 */
4702 			/* increase the refcount */
4703 			if (da_periph_acquire(periph, DA_REF_SYSCTL) == 0) {
4704 
4705 				taskqueue_enqueue(taskqueue_thread,
4706 						  &softc->sysctl_task);
4707 			} else {
4708 				/* XXX This message is useless! */
4709 				xpt_print(periph->path, "fatal error, "
4710 				    "could not acquire reference count\n");
4711 			}
4712 		}
4713 
4714 		/* We already probed the device. */
4715 		if (softc->flags & DA_FLAG_PROBED) {
4716 			daprobedone(periph, done_ccb);
4717 			return;
4718 		}
4719 
4720 		/* Ensure re-probe doesn't see old delete. */
4721 		softc->delete_available = 0;
4722 		dadeleteflag(softc, DA_DELETE_ZERO, 1);
4723 		if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
4724 			/*
4725 			 * Based on older SBC-3 spec revisions
4726 			 * any of the UNMAP methods "may" be
4727 			 * available via LBP given this flag so
4728 			 * we flag all of them as available and
4729 			 * then remove those which further
4730 			 * probes confirm aren't available
4731 			 * later.
4732 			 *
4733 			 * We could also check readcap(16) p_type
4734 			 * flag to exclude one or more invalid
4735 			 * write same (X) types here
4736 			 */
4737 			dadeleteflag(softc, DA_DELETE_WS16, 1);
4738 			dadeleteflag(softc, DA_DELETE_WS10, 1);
4739 			dadeleteflag(softc, DA_DELETE_UNMAP, 1);
4740 
4741 			xpt_release_ccb(done_ccb);
4742 			softc->state = DA_STATE_PROBE_LBP;
4743 			xpt_schedule(periph, priority);
4744 			return;
4745 		}
4746 
4747 		xpt_release_ccb(done_ccb);
4748 		softc->state = DA_STATE_PROBE_BDC;
4749 		xpt_schedule(periph, priority);
4750 		return;
4751 	}
4752 	case DA_CCB_PROBE_LBP:
4753 	{
4754 		struct scsi_vpd_logical_block_prov *lbp;
4755 
4756 		lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
4757 
4758 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
4759 			/*
4760 			 * T10/1799-D Revision 31 states at least one of these
4761 			 * must be supported but we don't currently enforce this.
4762 			 */
4763 			dadeleteflag(softc, DA_DELETE_WS16,
4764 				     (lbp->flags & SVPD_LBP_WS16));
4765 			dadeleteflag(softc, DA_DELETE_WS10,
4766 				     (lbp->flags & SVPD_LBP_WS10));
4767 			dadeleteflag(softc, DA_DELETE_UNMAP,
4768 				     (lbp->flags & SVPD_LBP_UNMAP));
4769 		} else {
4770 			int error;
4771 			error = daerror(done_ccb, CAM_RETRY_SELTO,
4772 					SF_RETRY_UA|SF_NO_PRINT);
4773 			if (error == ERESTART)
4774 				return;
4775 			else if (error != 0) {
4776 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
4777 					/* Don't wedge this device's queue */
4778 					cam_release_devq(done_ccb->ccb_h.path,
4779 							 /*relsim_flags*/0,
4780 							 /*reduction*/0,
4781 							 /*timeout*/0,
4782 							 /*getcount_only*/0);
4783 				}
4784 
4785 				/*
4786 				 * Failure indicates we don't support any SBC-3
4787 				 * delete methods with UNMAP
4788 				 */
4789 			}
4790 		}
4791 
4792 		free(lbp, M_SCSIDA);
4793 		xpt_release_ccb(done_ccb);
4794 		softc->state = DA_STATE_PROBE_BLK_LIMITS;
4795 		xpt_schedule(periph, priority);
4796 		return;
4797 	}
4798 	case DA_CCB_PROBE_BLK_LIMITS:
4799 	{
4800 		struct scsi_vpd_block_limits *block_limits;
4801 
4802 		block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
4803 
4804 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
4805 			uint32_t max_txfer_len = scsi_4btoul(
4806 				block_limits->max_txfer_len);
4807 			uint32_t max_unmap_lba_cnt = scsi_4btoul(
4808 				block_limits->max_unmap_lba_cnt);
4809 			uint32_t max_unmap_blk_cnt = scsi_4btoul(
4810 				block_limits->max_unmap_blk_cnt);
4811 			uint32_t unmap_gran = scsi_4btoul(
4812 				block_limits->opt_unmap_grain);
4813 			uint32_t unmap_gran_align = scsi_4btoul(
4814 				block_limits->unmap_grain_align);
4815 			uint64_t ws_max_blks = scsi_8btou64(
4816 				block_limits->max_write_same_length);
4817 
4818 			if (max_txfer_len != 0) {
4819 				softc->disk->d_maxsize = MIN(softc->maxio,
4820 				    (off_t)max_txfer_len * softc->params.secsize);
4821 			}
4822 
4823 			/*
4824 			 * We should already support UNMAP but we check lba
4825 			 * and block count to be sure
4826 			 */
4827 			if (max_unmap_lba_cnt != 0x00L &&
4828 			    max_unmap_blk_cnt != 0x00L) {
4829 				softc->unmap_max_lba = max_unmap_lba_cnt;
4830 				softc->unmap_max_ranges = min(max_unmap_blk_cnt,
4831 					UNMAP_MAX_RANGES);
4832 				if (unmap_gran > 1) {
4833 					softc->unmap_gran = unmap_gran;
4834 					if (unmap_gran_align & 0x80000000) {
4835 						softc->unmap_gran_align =
4836 						    unmap_gran_align &
4837 						    0x7fffffff;
4838 					}
4839 				}
4840 			} else {
4841 				/*
4842 				 * Unexpected UNMAP limits which means the
4843 				 * device doesn't actually support UNMAP
4844 				 */
4845 				dadeleteflag(softc, DA_DELETE_UNMAP, 0);
4846 			}
4847 
4848 			if (ws_max_blks != 0x00L)
4849 				softc->ws_max_blks = ws_max_blks;
4850 		} else {
4851 			int error;
4852 			error = daerror(done_ccb, CAM_RETRY_SELTO,
4853 					SF_RETRY_UA|SF_NO_PRINT);
4854 			if (error == ERESTART)
4855 				return;
4856 			else if (error != 0) {
4857 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
4858 					/* Don't wedge this device's queue */
4859 					cam_release_devq(done_ccb->ccb_h.path,
4860 							 /*relsim_flags*/0,
4861 							 /*reduction*/0,
4862 							 /*timeout*/0,
4863 							 /*getcount_only*/0);
4864 				}
4865 
4866 				/*
4867 				 * Failure here doesn't mean UNMAP is not
4868 				 * supported as this is an optional page.
4869 				 */
4870 				softc->unmap_max_lba = 1;
4871 				softc->unmap_max_ranges = 1;
4872 			}
4873 		}
4874 
4875 		free(block_limits, M_SCSIDA);
4876 		xpt_release_ccb(done_ccb);
4877 		softc->state = DA_STATE_PROBE_BDC;
4878 		xpt_schedule(periph, priority);
4879 		return;
4880 	}
4881 	case DA_CCB_PROBE_BDC:
4882 	{
4883 		struct scsi_vpd_block_device_characteristics *bdc;
4884 
4885 		bdc = (struct scsi_vpd_block_device_characteristics *)
4886 		    csio->data_ptr;
4887 
4888 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
4889 			uint32_t valid_len;
4890 
4891 			/*
4892 			 * Disable queue sorting for non-rotational media
4893 			 * by default.
4894 			 */
4895 			u_int16_t old_rate = softc->disk->d_rotation_rate;
4896 
4897 			valid_len = csio->dxfer_len - csio->resid;
4898 			if (SBDC_IS_PRESENT(bdc, valid_len,
4899 			    medium_rotation_rate)) {
4900 				softc->disk->d_rotation_rate =
4901 					scsi_2btoul(bdc->medium_rotation_rate);
4902 				if (softc->disk->d_rotation_rate ==
4903 				    SVPD_BDC_RATE_NON_ROTATING) {
4904 					cam_iosched_set_sort_queue(
4905 					    softc->cam_iosched, 0);
4906 					softc->rotating = 0;
4907 				}
4908 				if (softc->disk->d_rotation_rate != old_rate) {
4909 					disk_attr_changed(softc->disk,
4910 					    "GEOM::rotation_rate", M_NOWAIT);
4911 				}
4912 			}
4913 			if ((SBDC_IS_PRESENT(bdc, valid_len, flags))
4914 			 && (softc->zone_mode == DA_ZONE_NONE)) {
4915 				int ata_proto;
4916 
4917 				if (scsi_vpd_supported_page(periph,
4918 				    SVPD_ATA_INFORMATION))
4919 					ata_proto = 1;
4920 				else
4921 					ata_proto = 0;
4922 
4923 				/*
4924 				 * The Zoned field will only be set for
4925 				 * Drive Managed and Host Aware drives.  If
4926 				 * they are Host Managed, the device type
4927 				 * in the standard INQUIRY data should be
4928 				 * set to T_ZBC_HM (0x14).
4929 				 */
4930 				if ((bdc->flags & SVPD_ZBC_MASK) ==
4931 				     SVPD_HAW_ZBC) {
4932 					softc->zone_mode = DA_ZONE_HOST_AWARE;
4933 					softc->zone_interface = (ata_proto) ?
4934 					   DA_ZONE_IF_ATA_SAT : DA_ZONE_IF_SCSI;
4935 				} else if ((bdc->flags & SVPD_ZBC_MASK) ==
4936 				     SVPD_DM_ZBC) {
4937 					softc->zone_mode =DA_ZONE_DRIVE_MANAGED;
4938 					softc->zone_interface = (ata_proto) ?
4939 					   DA_ZONE_IF_ATA_SAT : DA_ZONE_IF_SCSI;
4940 				} else if ((bdc->flags & SVPD_ZBC_MASK) !=
4941 					  SVPD_ZBC_NR) {
4942 					xpt_print(periph->path, "Unknown zoned "
4943 					    "type %#x",
4944 					    bdc->flags & SVPD_ZBC_MASK);
4945 				}
4946 			}
4947 		} else {
4948 			int error;
4949 			error = daerror(done_ccb, CAM_RETRY_SELTO,
4950 					SF_RETRY_UA|SF_NO_PRINT);
4951 			if (error == ERESTART)
4952 				return;
4953 			else if (error != 0) {
4954 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
4955 					/* Don't wedge this device's queue */
4956 					cam_release_devq(done_ccb->ccb_h.path,
4957 							 /*relsim_flags*/0,
4958 							 /*reduction*/0,
4959 							 /*timeout*/0,
4960 							 /*getcount_only*/0);
4961 				}
4962 			}
4963 		}
4964 
4965 		free(bdc, M_SCSIDA);
4966 		xpt_release_ccb(done_ccb);
4967 		softc->state = DA_STATE_PROBE_ATA;
4968 		xpt_schedule(periph, priority);
4969 		return;
4970 	}
4971 	case DA_CCB_PROBE_ATA:
4972 	{
4973 		int i;
4974 		struct ata_params *ata_params;
4975 		int continue_probe;
4976 		int error;
4977 		int16_t *ptr;
4978 
4979 		ata_params = (struct ata_params *)csio->data_ptr;
4980 		ptr = (uint16_t *)ata_params;
4981 		continue_probe = 0;
4982 		error = 0;
4983 
4984 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
4985 			uint16_t old_rate;
4986 
4987 			for (i = 0; i < sizeof(*ata_params) / 2; i++)
4988 				ptr[i] = le16toh(ptr[i]);
4989 			if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
4990 			    (softc->quirks & DA_Q_NO_UNMAP) == 0) {
4991 				dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
4992 				if (ata_params->max_dsm_blocks != 0)
4993 					softc->trim_max_ranges = min(
4994 					  softc->trim_max_ranges,
4995 					  ata_params->max_dsm_blocks *
4996 					  ATA_DSM_BLK_RANGES);
4997 			}
4998 			/*
4999 			 * Disable queue sorting for non-rotational media
5000 			 * by default.
5001 			 */
5002 			old_rate = softc->disk->d_rotation_rate;
5003 			softc->disk->d_rotation_rate =
5004 			    ata_params->media_rotation_rate;
5005 			if (softc->disk->d_rotation_rate ==
5006 			    ATA_RATE_NON_ROTATING) {
5007 				cam_iosched_set_sort_queue(softc->cam_iosched, 0);
5008 				softc->rotating = 0;
5009 			}
5010 			if (softc->disk->d_rotation_rate != old_rate) {
5011 				disk_attr_changed(softc->disk,
5012 				    "GEOM::rotation_rate", M_NOWAIT);
5013 			}
5014 
5015 			if (ata_params->capabilities1 & ATA_SUPPORT_DMA)
5016 				softc->flags |= DA_FLAG_CAN_ATA_DMA;
5017 
5018 			if (ata_params->support.extension &
5019 			    ATA_SUPPORT_GENLOG)
5020 				softc->flags |= DA_FLAG_CAN_ATA_LOG;
5021 
5022 			/*
5023 			 * At this point, if we have a SATA host aware drive,
5024 			 * we communicate via ATA passthrough unless the
5025 			 * SAT layer supports ZBC -> ZAC translation.  In
5026 			 * that case,
5027 			 */
5028 			/*
5029 			 * XXX KDM figure out how to detect a host managed
5030 			 * SATA drive.
5031 			 */
5032 			if (softc->zone_mode == DA_ZONE_NONE) {
5033 				/*
5034 				 * Note that we don't override the zone
5035 				 * mode or interface if it has already been
5036 				 * set.  This is because it has either been
5037 				 * set as a quirk, or when we probed the
5038 				 * SCSI Block Device Characteristics page,
5039 				 * the zoned field was set.  The latter
5040 				 * means that the SAT layer supports ZBC to
5041 				 * ZAC translation, and we would prefer to
5042 				 * use that if it is available.
5043 				 */
5044 				if ((ata_params->support3 &
5045 				    ATA_SUPPORT_ZONE_MASK) ==
5046 				    ATA_SUPPORT_ZONE_HOST_AWARE) {
5047 					softc->zone_mode = DA_ZONE_HOST_AWARE;
5048 					softc->zone_interface =
5049 					    DA_ZONE_IF_ATA_PASS;
5050 				} else if ((ata_params->support3 &
5051 					    ATA_SUPPORT_ZONE_MASK) ==
5052 					    ATA_SUPPORT_ZONE_DEV_MANAGED) {
5053 					softc->zone_mode =DA_ZONE_DRIVE_MANAGED;
5054 					softc->zone_interface =
5055 					    DA_ZONE_IF_ATA_PASS;
5056 				}
5057 			}
5058 
5059 		} else {
5060 			error = daerror(done_ccb, CAM_RETRY_SELTO,
5061 					SF_RETRY_UA|SF_NO_PRINT);
5062 			if (error == ERESTART)
5063 				return;
5064 			else if (error != 0) {
5065 				if ((done_ccb->ccb_h.status &
5066 				     CAM_DEV_QFRZN) != 0) {
5067 					/* Don't wedge this device's queue */
5068 					cam_release_devq(done_ccb->ccb_h.path,
5069 							 /*relsim_flags*/0,
5070 							 /*reduction*/0,
5071 							 /*timeout*/0,
5072 							 /*getcount_only*/0);
5073 				}
5074 			}
5075 		}
5076 
5077 		free(ata_params, M_SCSIDA);
5078 		if ((softc->zone_mode == DA_ZONE_HOST_AWARE)
5079 		 || (softc->zone_mode == DA_ZONE_HOST_MANAGED)) {
5080 			/*
5081 			 * If the ATA IDENTIFY failed, we could be talking
5082 			 * to a SCSI drive, although that seems unlikely,
5083 			 * since the drive did report that it supported the
5084 			 * ATA Information VPD page.  If the ATA IDENTIFY
5085 			 * succeeded, and the SAT layer doesn't support
5086 			 * ZBC -> ZAC translation, continue on to get the
5087 			 * directory of ATA logs, and complete the rest of
5088 			 * the ZAC probe.  If the SAT layer does support
5089 			 * ZBC -> ZAC translation, we want to use that,
5090 			 * and we'll probe the SCSI Zoned Block Device
5091 			 * Characteristics VPD page next.
5092 			 */
5093 			if ((error == 0)
5094 			 && (softc->flags & DA_FLAG_CAN_ATA_LOG)
5095 			 && (softc->zone_interface == DA_ZONE_IF_ATA_PASS))
5096 				softc->state = DA_STATE_PROBE_ATA_LOGDIR;
5097 			else
5098 				softc->state = DA_STATE_PROBE_ZONE;
5099 			continue_probe = 1;
5100 		}
5101 		if (continue_probe != 0) {
5102 			xpt_release_ccb(done_ccb);
5103 			xpt_schedule(periph, priority);
5104 			return;
5105 		} else
5106 			daprobedone(periph, done_ccb);
5107 		return;
5108 	}
5109 	case DA_CCB_PROBE_ATA_LOGDIR:
5110 	{
5111 		int error;
5112 
5113 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
5114 			error = 0;
5115 			softc->valid_logdir_len = 0;
5116 			bzero(&softc->ata_logdir, sizeof(softc->ata_logdir));
5117 			softc->valid_logdir_len =
5118 				csio->dxfer_len - csio->resid;
5119 			if (softc->valid_logdir_len > 0)
5120 				bcopy(csio->data_ptr, &softc->ata_logdir,
5121 				    min(softc->valid_logdir_len,
5122 					sizeof(softc->ata_logdir)));
5123 			/*
5124 			 * Figure out whether the Identify Device log is
5125 			 * supported.  The General Purpose log directory
5126 			 * has a header, and lists the number of pages
5127 			 * available for each GP log identified by the
5128 			 * offset into the list.
5129 			 */
5130 			if ((softc->valid_logdir_len >=
5131 			    ((ATA_IDENTIFY_DATA_LOG + 1) * sizeof(uint16_t)))
5132 			 && (le16dec(softc->ata_logdir.header) ==
5133 			     ATA_GP_LOG_DIR_VERSION)
5134 			 && (le16dec(&softc->ata_logdir.num_pages[
5135 			     (ATA_IDENTIFY_DATA_LOG *
5136 			     sizeof(uint16_t)) - sizeof(uint16_t)]) > 0)){
5137 				softc->flags |= DA_FLAG_CAN_ATA_IDLOG;
5138 			} else {
5139 				softc->flags &= ~DA_FLAG_CAN_ATA_IDLOG;
5140 			}
5141 		} else {
5142 			error = daerror(done_ccb, CAM_RETRY_SELTO,
5143 					SF_RETRY_UA|SF_NO_PRINT);
5144 			if (error == ERESTART)
5145 				return;
5146 			else if (error != 0) {
5147 				/*
5148 				 * If we can't get the ATA log directory,
5149 				 * then ATA logs are effectively not
5150 				 * supported even if the bit is set in the
5151 				 * identify data.
5152 				 */
5153 				softc->flags &= ~(DA_FLAG_CAN_ATA_LOG |
5154 						  DA_FLAG_CAN_ATA_IDLOG);
5155 				if ((done_ccb->ccb_h.status &
5156 				     CAM_DEV_QFRZN) != 0) {
5157 					/* Don't wedge this device's queue */
5158 					cam_release_devq(done_ccb->ccb_h.path,
5159 							 /*relsim_flags*/0,
5160 							 /*reduction*/0,
5161 							 /*timeout*/0,
5162 							 /*getcount_only*/0);
5163 				}
5164 			}
5165 		}
5166 
5167 		free(csio->data_ptr, M_SCSIDA);
5168 
5169 		if ((error == 0)
5170 		 && (softc->flags & DA_FLAG_CAN_ATA_IDLOG)) {
5171 			softc->state = DA_STATE_PROBE_ATA_IDDIR;
5172 			xpt_release_ccb(done_ccb);
5173 			xpt_schedule(periph, priority);
5174 			return;
5175 		}
5176 		daprobedone(periph, done_ccb);
5177 		return;
5178 	}
5179 	case DA_CCB_PROBE_ATA_IDDIR:
5180 	{
5181 		int error;
5182 
5183 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
5184 			off_t entries_offset, max_entries;
5185 			error = 0;
5186 
5187 			softc->valid_iddir_len = 0;
5188 			bzero(&softc->ata_iddir, sizeof(softc->ata_iddir));
5189 			softc->flags &= ~(DA_FLAG_CAN_ATA_SUPCAP |
5190 					  DA_FLAG_CAN_ATA_ZONE);
5191 			softc->valid_iddir_len =
5192 				csio->dxfer_len - csio->resid;
5193 			if (softc->valid_iddir_len > 0)
5194 				bcopy(csio->data_ptr, &softc->ata_iddir,
5195 				    min(softc->valid_iddir_len,
5196 					sizeof(softc->ata_iddir)));
5197 
5198 			entries_offset =
5199 			    __offsetof(struct ata_identify_log_pages,entries);
5200 			max_entries = softc->valid_iddir_len - entries_offset;
5201 			if ((softc->valid_iddir_len > (entries_offset + 1))
5202 			 && (le64dec(softc->ata_iddir.header) ==
5203 			     ATA_IDLOG_REVISION)
5204 			 && (softc->ata_iddir.entry_count > 0)) {
5205 				int num_entries, i;
5206 
5207 				num_entries = softc->ata_iddir.entry_count;
5208 				num_entries = min(num_entries,
5209 				   softc->valid_iddir_len - entries_offset);
5210 				for (i = 0; i < num_entries &&
5211 				     i < max_entries; i++) {
5212 					if (softc->ata_iddir.entries[i] ==
5213 					    ATA_IDL_SUP_CAP)
5214 						softc->flags |=
5215 						    DA_FLAG_CAN_ATA_SUPCAP;
5216 					else if (softc->ata_iddir.entries[i]==
5217 						 ATA_IDL_ZDI)
5218 						softc->flags |=
5219 						    DA_FLAG_CAN_ATA_ZONE;
5220 
5221 					if ((softc->flags &
5222 					     DA_FLAG_CAN_ATA_SUPCAP)
5223 					 && (softc->flags &
5224 					     DA_FLAG_CAN_ATA_ZONE))
5225 						break;
5226 				}
5227 			}
5228 		} else {
5229 			error = daerror(done_ccb, CAM_RETRY_SELTO,
5230 					SF_RETRY_UA|SF_NO_PRINT);
5231 			if (error == ERESTART)
5232 				return;
5233 			else if (error != 0) {
5234 				/*
5235 				 * If we can't get the ATA Identify Data log
5236 				 * directory, then it effectively isn't
5237 				 * supported even if the ATA Log directory
5238 				 * a non-zero number of pages present for
5239 				 * this log.
5240 				 */
5241 				softc->flags &= ~DA_FLAG_CAN_ATA_IDLOG;
5242 				if ((done_ccb->ccb_h.status &
5243 				     CAM_DEV_QFRZN) != 0) {
5244 					/* Don't wedge this device's queue */
5245 					cam_release_devq(done_ccb->ccb_h.path,
5246 							 /*relsim_flags*/0,
5247 							 /*reduction*/0,
5248 							 /*timeout*/0,
5249 							 /*getcount_only*/0);
5250 				}
5251 			}
5252 		}
5253 
5254 		free(csio->data_ptr, M_SCSIDA);
5255 
5256 		if ((error == 0)
5257 		 && (softc->flags & DA_FLAG_CAN_ATA_SUPCAP)) {
5258 			softc->state = DA_STATE_PROBE_ATA_SUP;
5259 			xpt_release_ccb(done_ccb);
5260 			xpt_schedule(periph, priority);
5261 			return;
5262 		}
5263 		daprobedone(periph, done_ccb);
5264 		return;
5265 	}
5266 	case DA_CCB_PROBE_ATA_SUP:
5267 	{
5268 		int error;
5269 
5270 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
5271 			uint32_t valid_len;
5272 			size_t needed_size;
5273 			struct ata_identify_log_sup_cap *sup_cap;
5274 			error = 0;
5275 
5276 			sup_cap = (struct ata_identify_log_sup_cap *)
5277 			    csio->data_ptr;
5278 			valid_len = csio->dxfer_len - csio->resid;
5279 			needed_size =
5280 			    __offsetof(struct ata_identify_log_sup_cap,
5281 			    sup_zac_cap) + 1 + sizeof(sup_cap->sup_zac_cap);
5282 			if (valid_len >= needed_size) {
5283 				uint64_t zoned, zac_cap;
5284 
5285 				zoned = le64dec(sup_cap->zoned_cap);
5286 				if (zoned & ATA_ZONED_VALID) {
5287 					/*
5288 					 * This should have already been
5289 					 * set, because this is also in the
5290 					 * ATA identify data.
5291 					 */
5292 					if ((zoned & ATA_ZONED_MASK) ==
5293 					    ATA_SUPPORT_ZONE_HOST_AWARE)
5294 						softc->zone_mode =
5295 						    DA_ZONE_HOST_AWARE;
5296 					else if ((zoned & ATA_ZONED_MASK) ==
5297 					    ATA_SUPPORT_ZONE_DEV_MANAGED)
5298 						softc->zone_mode =
5299 						    DA_ZONE_DRIVE_MANAGED;
5300 				}
5301 
5302 				zac_cap = le64dec(sup_cap->sup_zac_cap);
5303 				if (zac_cap & ATA_SUP_ZAC_CAP_VALID) {
5304 					if (zac_cap & ATA_REPORT_ZONES_SUP)
5305 						softc->zone_flags |=
5306 						    DA_ZONE_FLAG_RZ_SUP;
5307 					if (zac_cap & ATA_ND_OPEN_ZONE_SUP)
5308 						softc->zone_flags |=
5309 						    DA_ZONE_FLAG_OPEN_SUP;
5310 					if (zac_cap & ATA_ND_CLOSE_ZONE_SUP)
5311 						softc->zone_flags |=
5312 						    DA_ZONE_FLAG_CLOSE_SUP;
5313 					if (zac_cap & ATA_ND_FINISH_ZONE_SUP)
5314 						softc->zone_flags |=
5315 						    DA_ZONE_FLAG_FINISH_SUP;
5316 					if (zac_cap & ATA_ND_RWP_SUP)
5317 						softc->zone_flags |=
5318 						    DA_ZONE_FLAG_RWP_SUP;
5319 				} else {
5320 					/*
5321 					 * This field was introduced in
5322 					 * ACS-4, r08 on April 28th, 2015.
5323 					 * If the drive firmware was written
5324 					 * to an earlier spec, it won't have
5325 					 * the field.  So, assume all
5326 					 * commands are supported.
5327 					 */
5328 					softc->zone_flags |=
5329 					    DA_ZONE_FLAG_SUP_MASK;
5330 				}
5331 
5332 			}
5333 		} else {
5334 			error = daerror(done_ccb, CAM_RETRY_SELTO,
5335 					SF_RETRY_UA|SF_NO_PRINT);
5336 			if (error == ERESTART)
5337 				return;
5338 			else if (error != 0) {
5339 				/*
5340 				 * If we can't get the ATA Identify Data
5341 				 * Supported Capabilities page, clear the
5342 				 * flag...
5343 				 */
5344 				softc->flags &= ~DA_FLAG_CAN_ATA_SUPCAP;
5345 				/*
5346 				 * And clear zone capabilities.
5347 				 */
5348 				softc->zone_flags &= ~DA_ZONE_FLAG_SUP_MASK;
5349 				if ((done_ccb->ccb_h.status &
5350 				     CAM_DEV_QFRZN) != 0) {
5351 					/* Don't wedge this device's queue */
5352 					cam_release_devq(done_ccb->ccb_h.path,
5353 							 /*relsim_flags*/0,
5354 							 /*reduction*/0,
5355 							 /*timeout*/0,
5356 							 /*getcount_only*/0);
5357 				}
5358 			}
5359 		}
5360 
5361 		free(csio->data_ptr, M_SCSIDA);
5362 
5363 		if ((error == 0)
5364 		 && (softc->flags & DA_FLAG_CAN_ATA_ZONE)) {
5365 			softc->state = DA_STATE_PROBE_ATA_ZONE;
5366 			xpt_release_ccb(done_ccb);
5367 			xpt_schedule(periph, priority);
5368 			return;
5369 		}
5370 		daprobedone(periph, done_ccb);
5371 		return;
5372 	}
5373 	case DA_CCB_PROBE_ATA_ZONE:
5374 	{
5375 		int error;
5376 
5377 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
5378 			struct ata_zoned_info_log *zi_log;
5379 			uint32_t valid_len;
5380 			size_t needed_size;
5381 
5382 			zi_log = (struct ata_zoned_info_log *)csio->data_ptr;
5383 
5384 			valid_len = csio->dxfer_len - csio->resid;
5385 			needed_size = __offsetof(struct ata_zoned_info_log,
5386 			    version_info) + 1 + sizeof(zi_log->version_info);
5387 			if (valid_len >= needed_size) {
5388 				uint64_t tmpvar;
5389 
5390 				tmpvar = le64dec(zi_log->zoned_cap);
5391 				if (tmpvar & ATA_ZDI_CAP_VALID) {
5392 					if (tmpvar & ATA_ZDI_CAP_URSWRZ)
5393 						softc->zone_flags |=
5394 						    DA_ZONE_FLAG_URSWRZ;
5395 					else
5396 						softc->zone_flags &=
5397 						    ~DA_ZONE_FLAG_URSWRZ;
5398 				}
5399 				tmpvar = le64dec(zi_log->optimal_seq_zones);
5400 				if (tmpvar & ATA_ZDI_OPT_SEQ_VALID) {
5401 					softc->zone_flags |=
5402 					    DA_ZONE_FLAG_OPT_SEQ_SET;
5403 					softc->optimal_seq_zones = (tmpvar &
5404 					    ATA_ZDI_OPT_SEQ_MASK);
5405 				} else {
5406 					softc->zone_flags &=
5407 					    ~DA_ZONE_FLAG_OPT_SEQ_SET;
5408 					softc->optimal_seq_zones = 0;
5409 				}
5410 
5411 				tmpvar =le64dec(zi_log->optimal_nonseq_zones);
5412 				if (tmpvar & ATA_ZDI_OPT_NS_VALID) {
5413 					softc->zone_flags |=
5414 					    DA_ZONE_FLAG_OPT_NONSEQ_SET;
5415 					softc->optimal_nonseq_zones =
5416 					    (tmpvar & ATA_ZDI_OPT_NS_MASK);
5417 				} else {
5418 					softc->zone_flags &=
5419 					    ~DA_ZONE_FLAG_OPT_NONSEQ_SET;
5420 					softc->optimal_nonseq_zones = 0;
5421 				}
5422 
5423 				tmpvar = le64dec(zi_log->max_seq_req_zones);
5424 				if (tmpvar & ATA_ZDI_MAX_SEQ_VALID) {
5425 					softc->zone_flags |=
5426 					    DA_ZONE_FLAG_MAX_SEQ_SET;
5427 					softc->max_seq_zones =
5428 					    (tmpvar & ATA_ZDI_MAX_SEQ_MASK);
5429 				} else {
5430 					softc->zone_flags &=
5431 					    ~DA_ZONE_FLAG_MAX_SEQ_SET;
5432 					softc->max_seq_zones = 0;
5433 				}
5434 			}
5435 		} else {
5436 			error = daerror(done_ccb, CAM_RETRY_SELTO,
5437 					SF_RETRY_UA|SF_NO_PRINT);
5438 			if (error == ERESTART)
5439 				return;
5440 			else if (error != 0) {
5441 				softc->flags &= ~DA_FLAG_CAN_ATA_ZONE;
5442 				softc->flags &= ~DA_ZONE_FLAG_SET_MASK;
5443 
5444 				if ((done_ccb->ccb_h.status &
5445 				     CAM_DEV_QFRZN) != 0) {
5446 					/* Don't wedge this device's queue */
5447 					cam_release_devq(done_ccb->ccb_h.path,
5448 							 /*relsim_flags*/0,
5449 							 /*reduction*/0,
5450 							 /*timeout*/0,
5451 							 /*getcount_only*/0);
5452 				}
5453 			}
5454 
5455 		}
5456 		free(csio->data_ptr, M_SCSIDA);
5457 
5458 		daprobedone(periph, done_ccb);
5459 		return;
5460 	}
5461 	case DA_CCB_PROBE_ZONE:
5462 	{
5463 		int error;
5464 
5465 		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
5466 			uint32_t valid_len;
5467 			size_t needed_len;
5468 			struct scsi_vpd_zoned_bdc *zoned_bdc;
5469 
5470 			error = 0;
5471 			zoned_bdc = (struct scsi_vpd_zoned_bdc *)
5472 				csio->data_ptr;
5473 			valid_len = csio->dxfer_len - csio->resid;
5474 			needed_len = __offsetof(struct scsi_vpd_zoned_bdc,
5475 			    max_seq_req_zones) + 1 +
5476 			    sizeof(zoned_bdc->max_seq_req_zones);
5477 			if ((valid_len >= needed_len)
5478 			 && (scsi_2btoul(zoned_bdc->page_length) >=
5479 			     SVPD_ZBDC_PL)) {
5480 				if (zoned_bdc->flags & SVPD_ZBDC_URSWRZ)
5481 					softc->zone_flags |=
5482 					    DA_ZONE_FLAG_URSWRZ;
5483 				else
5484 					softc->zone_flags &=
5485 					    ~DA_ZONE_FLAG_URSWRZ;
5486 				softc->optimal_seq_zones =
5487 				    scsi_4btoul(zoned_bdc->optimal_seq_zones);
5488 				softc->zone_flags |= DA_ZONE_FLAG_OPT_SEQ_SET;
5489 				softc->optimal_nonseq_zones = scsi_4btoul(
5490 				    zoned_bdc->optimal_nonseq_zones);
5491 				softc->zone_flags |=
5492 				    DA_ZONE_FLAG_OPT_NONSEQ_SET;
5493 				softc->max_seq_zones =
5494 				    scsi_4btoul(zoned_bdc->max_seq_req_zones);
5495 				softc->zone_flags |= DA_ZONE_FLAG_MAX_SEQ_SET;
5496 			}
5497 			/*
5498 			 * All of the zone commands are mandatory for SCSI
5499 			 * devices.
5500 			 *
5501 			 * XXX KDM this is valid as of September 2015.
5502 			 * Re-check this assumption once the SAT spec is
5503 			 * updated to support SCSI ZBC to ATA ZAC mapping.
5504 			 * Since ATA allows zone commands to be reported
5505 			 * as supported or not, this may not necessarily
5506 			 * be true for an ATA device behind a SAT (SCSI to
5507 			 * ATA Translation) layer.
5508 			 */
5509 			softc->zone_flags |= DA_ZONE_FLAG_SUP_MASK;
5510 		} else {
5511 			error = daerror(done_ccb, CAM_RETRY_SELTO,
5512 					SF_RETRY_UA|SF_NO_PRINT);
5513 			if (error == ERESTART)
5514 				return;
5515 			else if (error != 0) {
5516 				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
5517 					/* Don't wedge this device's queue */
5518 					cam_release_devq(done_ccb->ccb_h.path,
5519 							 /*relsim_flags*/0,
5520 							 /*reduction*/0,
5521 							 /*timeout*/0,
5522 							 /*getcount_only*/0);
5523 				}
5524 			}
5525 		}
5526 		daprobedone(periph, done_ccb);
5527 		return;
5528 	}
5529 	case DA_CCB_DUMP:
5530 		/* No-op.  We're polling */
5531 		return;
5532 	case DA_CCB_TUR:
5533 	{
5534 		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
5535 
5536 			if (daerror(done_ccb, CAM_RETRY_SELTO,
5537 			    SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
5538 			    ERESTART)
5539 				return;
5540 			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
5541 				cam_release_devq(done_ccb->ccb_h.path,
5542 						 /*relsim_flags*/0,
5543 						 /*reduction*/0,
5544 						 /*timeout*/0,
5545 						 /*getcount_only*/0);
5546 		}
5547 		xpt_release_ccb(done_ccb);
5548 		da_periph_release_locked(periph, DA_REF_TUR);
5549 		return;
5550 	}
5551 	default:
5552 		break;
5553 	}
5554 	xpt_release_ccb(done_ccb);
5555 }
5556 
5557 static void
5558 dareprobe(struct cam_periph *periph)
5559 {
5560 	struct da_softc	  *softc;
5561 	int status;
5562 
5563 	softc = (struct da_softc *)periph->softc;
5564 
5565 	/* Probe in progress; don't interfere. */
5566 	if (softc->state != DA_STATE_NORMAL)
5567 		return;
5568 
5569 	status = da_periph_acquire(periph, DA_REF_REPROBE);
5570 	KASSERT(status == 0, ("dareprobe: cam_periph_acquire failed"));
5571 
5572 	softc->state = DA_STATE_PROBE_WP;
5573 	xpt_schedule(periph, CAM_PRIORITY_DEV);
5574 }
5575 
5576 static int
5577 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
5578 {
5579 	struct da_softc	  *softc;
5580 	struct cam_periph *periph;
5581 	int error, error_code, sense_key, asc, ascq;
5582 
5583 #if defined(BUF_TRACKING) || defined(FULL_BUF_TRACKING)
5584 	if (ccb->csio.bio != NULL)
5585 		biotrack(ccb->csio.bio, __func__);
5586 #endif
5587 
5588 	periph = xpt_path_periph(ccb->ccb_h.path);
5589 	softc = (struct da_softc *)periph->softc;
5590 
5591 	/*
5592 	 * Automatically detect devices that do not support
5593 	 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
5594 	 */
5595 	error = 0;
5596 	if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
5597 		error = cmd6workaround(ccb);
5598 	} else if (scsi_extract_sense_ccb(ccb,
5599 	    &error_code, &sense_key, &asc, &ascq)) {
5600 		if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
5601 			error = cmd6workaround(ccb);
5602 		/*
5603 		 * If the target replied with CAPACITY DATA HAS CHANGED UA,
5604 		 * query the capacity and notify upper layers.
5605 		 */
5606 		else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
5607 		    asc == 0x2A && ascq == 0x09) {
5608 			xpt_print(periph->path, "Capacity data has changed\n");
5609 			softc->flags &= ~DA_FLAG_PROBED;
5610 			dareprobe(periph);
5611 			sense_flags |= SF_NO_PRINT;
5612 		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
5613 		    asc == 0x28 && ascq == 0x00) {
5614 			softc->flags &= ~DA_FLAG_PROBED;
5615 			disk_media_changed(softc->disk, M_NOWAIT);
5616 		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
5617 		    asc == 0x3F && ascq == 0x03) {
5618 			xpt_print(periph->path, "INQUIRY data has changed\n");
5619 			softc->flags &= ~DA_FLAG_PROBED;
5620 			dareprobe(periph);
5621 			sense_flags |= SF_NO_PRINT;
5622 		} else if (sense_key == SSD_KEY_NOT_READY &&
5623 		    asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
5624 			softc->flags |= DA_FLAG_PACK_INVALID;
5625 			disk_media_gone(softc->disk, M_NOWAIT);
5626 		}
5627 	}
5628 	if (error == ERESTART)
5629 		return (ERESTART);
5630 
5631 #ifdef CAM_IO_STATS
5632 	switch (ccb->ccb_h.status & CAM_STATUS_MASK) {
5633 	case CAM_CMD_TIMEOUT:
5634 		softc->timeouts++;
5635 		break;
5636 	case CAM_REQ_ABORTED:
5637 	case CAM_REQ_CMP_ERR:
5638 	case CAM_REQ_TERMIO:
5639 	case CAM_UNREC_HBA_ERROR:
5640 	case CAM_DATA_RUN_ERR:
5641 		softc->errors++;
5642 		break;
5643 	default:
5644 		break;
5645 	}
5646 #endif
5647 
5648 	/*
5649 	 * XXX
5650 	 * Until we have a better way of doing pack validation,
5651 	 * don't treat UAs as errors.
5652 	 */
5653 	sense_flags |= SF_RETRY_UA;
5654 
5655 	if (softc->quirks & DA_Q_RETRY_BUSY)
5656 		sense_flags |= SF_RETRY_BUSY;
5657 	return(cam_periph_error(ccb, cam_flags, sense_flags));
5658 }
5659 
5660 static void
5661 damediapoll(void *arg)
5662 {
5663 	struct cam_periph *periph = arg;
5664 	struct da_softc *softc = periph->softc;
5665 
5666 	if (!cam_iosched_has_work_flags(softc->cam_iosched, DA_WORK_TUR) &&
5667 	    LIST_EMPTY(&softc->pending_ccbs)) {
5668 		if (da_periph_acquire(periph, DA_REF_TUR) == 0) {
5669 			cam_iosched_set_work_flags(softc->cam_iosched, DA_WORK_TUR);
5670 			daschedule(periph);
5671 		}
5672 	}
5673 	/* Queue us up again */
5674 	if (da_poll_period != 0)
5675 		callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
5676 }
5677 
5678 static void
5679 daprevent(struct cam_periph *periph, int action)
5680 {
5681 	struct	da_softc *softc;
5682 	union	ccb *ccb;
5683 	int	error;
5684 
5685 	softc = (struct da_softc *)periph->softc;
5686 
5687 	if (((action == PR_ALLOW)
5688 	  && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
5689 	 || ((action == PR_PREVENT)
5690 	  && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
5691 		return;
5692 	}
5693 
5694 	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
5695 
5696 	scsi_prevent(&ccb->csio,
5697 		     /*retries*/1,
5698 		     /*cbcfp*/dadone,
5699 		     MSG_SIMPLE_Q_TAG,
5700 		     action,
5701 		     SSD_FULL_SIZE,
5702 		     5000);
5703 
5704 	error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
5705 	    SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
5706 
5707 	if (error == 0) {
5708 		if (action == PR_ALLOW)
5709 			softc->flags &= ~DA_FLAG_PACK_LOCKED;
5710 		else
5711 			softc->flags |= DA_FLAG_PACK_LOCKED;
5712 	}
5713 
5714 	xpt_release_ccb(ccb);
5715 }
5716 
5717 static void
5718 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
5719 	  struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
5720 {
5721 	struct ccb_calc_geometry ccg;
5722 	struct da_softc *softc;
5723 	struct disk_params *dp;
5724 	u_int lbppbe, lalba;
5725 	int error;
5726 
5727 	softc = (struct da_softc *)periph->softc;
5728 
5729 	dp = &softc->params;
5730 	dp->secsize = block_len;
5731 	dp->sectors = maxsector + 1;
5732 	if (rcaplong != NULL) {
5733 		lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
5734 		lalba = scsi_2btoul(rcaplong->lalba_lbp);
5735 		lalba &= SRC16_LALBA_A;
5736 	} else {
5737 		lbppbe = 0;
5738 		lalba = 0;
5739 	}
5740 
5741 	if (lbppbe > 0) {
5742 		dp->stripesize = block_len << lbppbe;
5743 		dp->stripeoffset = (dp->stripesize - block_len * lalba) %
5744 		    dp->stripesize;
5745 	} else if (softc->quirks & DA_Q_4K) {
5746 		dp->stripesize = 4096;
5747 		dp->stripeoffset = 0;
5748 	} else if (softc->unmap_gran != 0) {
5749 		dp->stripesize = block_len * softc->unmap_gran;
5750 		dp->stripeoffset = (dp->stripesize - block_len *
5751 		    softc->unmap_gran_align) % dp->stripesize;
5752 	} else {
5753 		dp->stripesize = 0;
5754 		dp->stripeoffset = 0;
5755 	}
5756 	/*
5757 	 * Have the controller provide us with a geometry
5758 	 * for this disk.  The only time the geometry
5759 	 * matters is when we boot and the controller
5760 	 * is the only one knowledgeable enough to come
5761 	 * up with something that will make this a bootable
5762 	 * device.
5763 	 */
5764 	xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
5765 	ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
5766 	ccg.block_size = dp->secsize;
5767 	ccg.volume_size = dp->sectors;
5768 	ccg.heads = 0;
5769 	ccg.secs_per_track = 0;
5770 	ccg.cylinders = 0;
5771 	xpt_action((union ccb*)&ccg);
5772 	if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
5773 		/*
5774 		 * We don't know what went wrong here- but just pick
5775 		 * a geometry so we don't have nasty things like divide
5776 		 * by zero.
5777 		 */
5778 		dp->heads = 255;
5779 		dp->secs_per_track = 255;
5780 		dp->cylinders = dp->sectors / (255 * 255);
5781 		if (dp->cylinders == 0) {
5782 			dp->cylinders = 1;
5783 		}
5784 	} else {
5785 		dp->heads = ccg.heads;
5786 		dp->secs_per_track = ccg.secs_per_track;
5787 		dp->cylinders = ccg.cylinders;
5788 	}
5789 
5790 	/*
5791 	 * If the user supplied a read capacity buffer, and if it is
5792 	 * different than the previous buffer, update the data in the EDT.
5793 	 * If it's the same, we don't bother.  This avoids sending an
5794 	 * update every time someone opens this device.
5795 	 */
5796 	if ((rcaplong != NULL)
5797 	 && (bcmp(rcaplong, &softc->rcaplong,
5798 		  min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
5799 		struct ccb_dev_advinfo cdai;
5800 
5801 		xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
5802 		cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
5803 		cdai.buftype = CDAI_TYPE_RCAPLONG;
5804 		cdai.flags = CDAI_FLAG_STORE;
5805 		cdai.bufsiz = rcap_len;
5806 		cdai.buf = (uint8_t *)rcaplong;
5807 		xpt_action((union ccb *)&cdai);
5808 		if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
5809 			cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
5810 		if (cdai.ccb_h.status != CAM_REQ_CMP) {
5811 			xpt_print(periph->path, "%s: failed to set read "
5812 				  "capacity advinfo\n", __func__);
5813 			/* Use cam_error_print() to decode the status */
5814 			cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
5815 					CAM_EPF_ALL);
5816 		} else {
5817 			bcopy(rcaplong, &softc->rcaplong,
5818 			      min(sizeof(softc->rcaplong), rcap_len));
5819 		}
5820 	}
5821 
5822 	softc->disk->d_sectorsize = softc->params.secsize;
5823 	softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
5824 	softc->disk->d_stripesize = softc->params.stripesize;
5825 	softc->disk->d_stripeoffset = softc->params.stripeoffset;
5826 	/* XXX: these are not actually "firmware" values, so they may be wrong */
5827 	softc->disk->d_fwsectors = softc->params.secs_per_track;
5828 	softc->disk->d_fwheads = softc->params.heads;
5829 	softc->disk->d_devstat->block_size = softc->params.secsize;
5830 	softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
5831 
5832 	error = disk_resize(softc->disk, M_NOWAIT);
5833 	if (error != 0)
5834 		xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
5835 }
5836 
5837 static void
5838 dasendorderedtag(void *arg)
5839 {
5840 	struct da_softc *softc = arg;
5841 
5842 	if (da_send_ordered) {
5843 		if (!LIST_EMPTY(&softc->pending_ccbs)) {
5844 			if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
5845 				softc->flags |= DA_FLAG_NEED_OTAG;
5846 			softc->flags &= ~DA_FLAG_WAS_OTAG;
5847 		}
5848 	}
5849 	/* Queue us up again */
5850 	callout_reset(&softc->sendordered_c,
5851 	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
5852 	    dasendorderedtag, softc);
5853 }
5854 
5855 /*
5856  * Step through all DA peripheral drivers, and if the device is still open,
5857  * sync the disk cache to physical media.
5858  */
5859 static void
5860 dashutdown(void * arg, int howto)
5861 {
5862 	struct cam_periph *periph;
5863 	struct da_softc *softc;
5864 	union ccb *ccb;
5865 	int error;
5866 
5867 	CAM_PERIPH_FOREACH(periph, &dadriver) {
5868 		softc = (struct da_softc *)periph->softc;
5869 		if (SCHEDULER_STOPPED()) {
5870 			/* If we paniced with the lock held, do not recurse. */
5871 			if (!cam_periph_owned(periph) &&
5872 			    (softc->flags & DA_FLAG_OPEN)) {
5873 				dadump(softc->disk, NULL, 0, 0, 0);
5874 			}
5875 			continue;
5876 		}
5877 		cam_periph_lock(periph);
5878 
5879 		/*
5880 		 * We only sync the cache if the drive is still open, and
5881 		 * if the drive is capable of it..
5882 		 */
5883 		if (((softc->flags & DA_FLAG_OPEN) == 0)
5884 		 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
5885 			cam_periph_unlock(periph);
5886 			continue;
5887 		}
5888 
5889 		ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
5890 		scsi_synchronize_cache(&ccb->csio,
5891 				       /*retries*/0,
5892 				       /*cbfcnp*/dadone,
5893 				       MSG_SIMPLE_Q_TAG,
5894 				       /*begin_lba*/0, /* whole disk */
5895 				       /*lb_count*/0,
5896 				       SSD_FULL_SIZE,
5897 				       60 * 60 * 1000);
5898 
5899 		error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
5900 		    /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
5901 		    softc->disk->d_devstat);
5902 		if (error != 0)
5903 			xpt_print(periph->path, "Synchronize cache failed\n");
5904 		xpt_release_ccb(ccb);
5905 		cam_periph_unlock(periph);
5906 	}
5907 }
5908 
5909 #else /* !_KERNEL */
5910 
5911 /*
5912  * XXX These are only left out of the kernel build to silence warnings.  If,
5913  * for some reason these functions are used in the kernel, the ifdefs should
5914  * be moved so they are included both in the kernel and userland.
5915  */
5916 void
5917 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
5918 		 void (*cbfcnp)(struct cam_periph *, union ccb *),
5919 		 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
5920 		 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
5921 		 u_int32_t timeout)
5922 {
5923 	struct scsi_format_unit *scsi_cmd;
5924 
5925 	scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
5926 	scsi_cmd->opcode = FORMAT_UNIT;
5927 	scsi_cmd->byte2 = byte2;
5928 	scsi_ulto2b(ileave, scsi_cmd->interleave);
5929 
5930 	cam_fill_csio(csio,
5931 		      retries,
5932 		      cbfcnp,
5933 		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
5934 		      tag_action,
5935 		      data_ptr,
5936 		      dxfer_len,
5937 		      sense_len,
5938 		      sizeof(*scsi_cmd),
5939 		      timeout);
5940 }
5941 
5942 void
5943 scsi_read_defects(struct ccb_scsiio *csio, uint32_t retries,
5944 		  void (*cbfcnp)(struct cam_periph *, union ccb *),
5945 		  uint8_t tag_action, uint8_t list_format,
5946 		  uint32_t addr_desc_index, uint8_t *data_ptr,
5947 		  uint32_t dxfer_len, int minimum_cmd_size,
5948 		  uint8_t sense_len, uint32_t timeout)
5949 {
5950 	uint8_t cdb_len;
5951 
5952 	/*
5953 	 * These conditions allow using the 10 byte command.  Otherwise we
5954 	 * need to use the 12 byte command.
5955 	 */
5956 	if ((minimum_cmd_size <= 10)
5957 	 && (addr_desc_index == 0)
5958 	 && (dxfer_len <= SRDD10_MAX_LENGTH)) {
5959 		struct scsi_read_defect_data_10 *cdb10;
5960 
5961 		cdb10 = (struct scsi_read_defect_data_10 *)
5962 			&csio->cdb_io.cdb_bytes;
5963 
5964 		cdb_len = sizeof(*cdb10);
5965 		bzero(cdb10, cdb_len);
5966                 cdb10->opcode = READ_DEFECT_DATA_10;
5967                 cdb10->format = list_format;
5968                 scsi_ulto2b(dxfer_len, cdb10->alloc_length);
5969 	} else {
5970 		struct scsi_read_defect_data_12 *cdb12;
5971 
5972 		cdb12 = (struct scsi_read_defect_data_12 *)
5973 			&csio->cdb_io.cdb_bytes;
5974 
5975 		cdb_len = sizeof(*cdb12);
5976 		bzero(cdb12, cdb_len);
5977                 cdb12->opcode = READ_DEFECT_DATA_12;
5978                 cdb12->format = list_format;
5979                 scsi_ulto4b(dxfer_len, cdb12->alloc_length);
5980 		scsi_ulto4b(addr_desc_index, cdb12->address_descriptor_index);
5981 	}
5982 
5983 	cam_fill_csio(csio,
5984 		      retries,
5985 		      cbfcnp,
5986 		      /*flags*/ CAM_DIR_IN,
5987 		      tag_action,
5988 		      data_ptr,
5989 		      dxfer_len,
5990 		      sense_len,
5991 		      cdb_len,
5992 		      timeout);
5993 }
5994 
5995 void
5996 scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
5997 	      void (*cbfcnp)(struct cam_periph *, union ccb *),
5998 	      u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
5999 	      u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
6000 	      u_int32_t timeout)
6001 {
6002 	struct scsi_sanitize *scsi_cmd;
6003 
6004 	scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
6005 	scsi_cmd->opcode = SANITIZE;
6006 	scsi_cmd->byte2 = byte2;
6007 	scsi_cmd->control = control;
6008 	scsi_ulto2b(dxfer_len, scsi_cmd->length);
6009 
6010 	cam_fill_csio(csio,
6011 		      retries,
6012 		      cbfcnp,
6013 		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
6014 		      tag_action,
6015 		      data_ptr,
6016 		      dxfer_len,
6017 		      sense_len,
6018 		      sizeof(*scsi_cmd),
6019 		      timeout);
6020 }
6021 
6022 #endif /* _KERNEL */
6023 
6024 void
6025 scsi_zbc_out(struct ccb_scsiio *csio, uint32_t retries,
6026 	     void (*cbfcnp)(struct cam_periph *, union ccb *),
6027 	     uint8_t tag_action, uint8_t service_action, uint64_t zone_id,
6028 	     uint8_t zone_flags, uint8_t *data_ptr, uint32_t dxfer_len,
6029 	     uint8_t sense_len, uint32_t timeout)
6030 {
6031 	struct scsi_zbc_out *scsi_cmd;
6032 
6033 	scsi_cmd = (struct scsi_zbc_out *)&csio->cdb_io.cdb_bytes;
6034 	scsi_cmd->opcode = ZBC_OUT;
6035 	scsi_cmd->service_action = service_action;
6036 	scsi_u64to8b(zone_id, scsi_cmd->zone_id);
6037 	scsi_cmd->zone_flags = zone_flags;
6038 
6039 	cam_fill_csio(csio,
6040 		      retries,
6041 		      cbfcnp,
6042 		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
6043 		      tag_action,
6044 		      data_ptr,
6045 		      dxfer_len,
6046 		      sense_len,
6047 		      sizeof(*scsi_cmd),
6048 		      timeout);
6049 }
6050 
6051 void
6052 scsi_zbc_in(struct ccb_scsiio *csio, uint32_t retries,
6053 	    void (*cbfcnp)(struct cam_periph *, union ccb *),
6054 	    uint8_t tag_action, uint8_t service_action, uint64_t zone_start_lba,
6055 	    uint8_t zone_options, uint8_t *data_ptr, uint32_t dxfer_len,
6056 	    uint8_t sense_len, uint32_t timeout)
6057 {
6058 	struct scsi_zbc_in *scsi_cmd;
6059 
6060 	scsi_cmd = (struct scsi_zbc_in *)&csio->cdb_io.cdb_bytes;
6061 	scsi_cmd->opcode = ZBC_IN;
6062 	scsi_cmd->service_action = service_action;
6063 	scsi_ulto4b(dxfer_len, scsi_cmd->length);
6064 	scsi_u64to8b(zone_start_lba, scsi_cmd->zone_start_lba);
6065 	scsi_cmd->zone_options = zone_options;
6066 
6067 	cam_fill_csio(csio,
6068 		      retries,
6069 		      cbfcnp,
6070 		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_IN : CAM_DIR_NONE,
6071 		      tag_action,
6072 		      data_ptr,
6073 		      dxfer_len,
6074 		      sense_len,
6075 		      sizeof(*scsi_cmd),
6076 		      timeout);
6077 
6078 }
6079 
6080 int
6081 scsi_ata_zac_mgmt_out(struct ccb_scsiio *csio, uint32_t retries,
6082 		      void (*cbfcnp)(struct cam_periph *, union ccb *),
6083 		      uint8_t tag_action, int use_ncq,
6084 		      uint8_t zm_action, uint64_t zone_id, uint8_t zone_flags,
6085 		      uint8_t *data_ptr, uint32_t dxfer_len,
6086 		      uint8_t *cdb_storage, size_t cdb_storage_len,
6087 		      uint8_t sense_len, uint32_t timeout)
6088 {
6089 	uint8_t command_out, protocol, ata_flags;
6090 	uint16_t features_out;
6091 	uint32_t sectors_out, auxiliary;
6092 	int retval;
6093 
6094 	retval = 0;
6095 
6096 	if (use_ncq == 0) {
6097 		command_out = ATA_ZAC_MANAGEMENT_OUT;
6098 		features_out = (zm_action & 0xf) | (zone_flags << 8);
6099 		ata_flags = AP_FLAG_BYT_BLOK_BLOCKS;
6100 		if (dxfer_len == 0) {
6101 			protocol = AP_PROTO_NON_DATA;
6102 			ata_flags |= AP_FLAG_TLEN_NO_DATA;
6103 			sectors_out = 0;
6104 		} else {
6105 			protocol = AP_PROTO_DMA;
6106 			ata_flags |= AP_FLAG_TLEN_SECT_CNT |
6107 				     AP_FLAG_TDIR_TO_DEV;
6108 			sectors_out = ((dxfer_len >> 9) & 0xffff);
6109 		}
6110 		auxiliary = 0;
6111 	} else {
6112 		ata_flags = AP_FLAG_BYT_BLOK_BLOCKS;
6113 		if (dxfer_len == 0) {
6114 			command_out = ATA_NCQ_NON_DATA;
6115 			features_out = ATA_NCQ_ZAC_MGMT_OUT;
6116 			/*
6117 			 * We're assuming the SCSI to ATA translation layer
6118 			 * will set the NCQ tag number in the tag field.
6119 			 * That isn't clear from the SAT-4 spec (as of rev 05).
6120 			 */
6121 			sectors_out = 0;
6122 			ata_flags |= AP_FLAG_TLEN_NO_DATA;
6123 		} else {
6124 			command_out = ATA_SEND_FPDMA_QUEUED;
6125 			/*
6126 			 * Note that we're defaulting to normal priority,
6127 			 * and assuming that the SCSI to ATA translation
6128 			 * layer will insert the NCQ tag number in the tag
6129 			 * field.  That isn't clear in the SAT-4 spec (as
6130 			 * of rev 05).
6131 			 */
6132 			sectors_out = ATA_SFPDMA_ZAC_MGMT_OUT << 8;
6133 
6134 			ata_flags |= AP_FLAG_TLEN_FEAT |
6135 				     AP_FLAG_TDIR_TO_DEV;
6136 
6137 			/*
6138 			 * For SEND FPDMA QUEUED, the transfer length is
6139 			 * encoded in the FEATURE register, and 0 means
6140 			 * that 65536 512 byte blocks are to be tranferred.
6141 			 * In practice, it seems unlikely that we'll see
6142 			 * a transfer that large, and it may confuse the
6143 			 * the SAT layer, because generally that means that
6144 			 * 0 bytes should be transferred.
6145 			 */
6146 			if (dxfer_len == (65536 * 512)) {
6147 				features_out = 0;
6148 			} else if (dxfer_len <= (65535 * 512)) {
6149 				features_out = ((dxfer_len >> 9) & 0xffff);
6150 			} else {
6151 				/* The transfer is too big. */
6152 				retval = 1;
6153 				goto bailout;
6154 			}
6155 
6156 		}
6157 
6158 		auxiliary = (zm_action & 0xf) | (zone_flags << 8);
6159 		protocol = AP_PROTO_FPDMA;
6160 	}
6161 
6162 	protocol |= AP_EXTEND;
6163 
6164 	retval = scsi_ata_pass(csio,
6165 	    retries,
6166 	    cbfcnp,
6167 	    /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
6168 	    tag_action,
6169 	    /*protocol*/ protocol,
6170 	    /*ata_flags*/ ata_flags,
6171 	    /*features*/ features_out,
6172 	    /*sector_count*/ sectors_out,
6173 	    /*lba*/ zone_id,
6174 	    /*command*/ command_out,
6175 	    /*device*/ 0,
6176 	    /*icc*/ 0,
6177 	    /*auxiliary*/ auxiliary,
6178 	    /*control*/ 0,
6179 	    /*data_ptr*/ data_ptr,
6180 	    /*dxfer_len*/ dxfer_len,
6181 	    /*cdb_storage*/ cdb_storage,
6182 	    /*cdb_storage_len*/ cdb_storage_len,
6183 	    /*minimum_cmd_size*/ 0,
6184 	    /*sense_len*/ SSD_FULL_SIZE,
6185 	    /*timeout*/ timeout);
6186 
6187 bailout:
6188 
6189 	return (retval);
6190 }
6191 
6192 int
6193 scsi_ata_zac_mgmt_in(struct ccb_scsiio *csio, uint32_t retries,
6194 		     void (*cbfcnp)(struct cam_periph *, union ccb *),
6195 		     uint8_t tag_action, int use_ncq,
6196 		     uint8_t zm_action, uint64_t zone_id, uint8_t zone_flags,
6197 		     uint8_t *data_ptr, uint32_t dxfer_len,
6198 		     uint8_t *cdb_storage, size_t cdb_storage_len,
6199 		     uint8_t sense_len, uint32_t timeout)
6200 {
6201 	uint8_t command_out, protocol;
6202 	uint16_t features_out, sectors_out;
6203 	uint32_t auxiliary;
6204 	int ata_flags;
6205 	int retval;
6206 
6207 	retval = 0;
6208 	ata_flags = AP_FLAG_TDIR_FROM_DEV | AP_FLAG_BYT_BLOK_BLOCKS;
6209 
6210 	if (use_ncq == 0) {
6211 		command_out = ATA_ZAC_MANAGEMENT_IN;
6212 		/* XXX KDM put a macro here */
6213 		features_out = (zm_action & 0xf) | (zone_flags << 8);
6214 		sectors_out = dxfer_len >> 9; /* XXX KDM macro */
6215 		protocol = AP_PROTO_DMA;
6216 		ata_flags |= AP_FLAG_TLEN_SECT_CNT;
6217 		auxiliary = 0;
6218 	} else {
6219 		ata_flags |= AP_FLAG_TLEN_FEAT;
6220 
6221 		command_out = ATA_RECV_FPDMA_QUEUED;
6222 		sectors_out = ATA_RFPDMA_ZAC_MGMT_IN << 8;
6223 
6224 		/*
6225 		 * For RECEIVE FPDMA QUEUED, the transfer length is
6226 		 * encoded in the FEATURE register, and 0 means
6227 		 * that 65536 512 byte blocks are to be tranferred.
6228 		 * In practice, it seems unlikely that we'll see
6229 		 * a transfer that large, and it may confuse the
6230 		 * the SAT layer, because generally that means that
6231 		 * 0 bytes should be transferred.
6232 		 */
6233 		if (dxfer_len == (65536 * 512)) {
6234 			features_out = 0;
6235 		} else if (dxfer_len <= (65535 * 512)) {
6236 			features_out = ((dxfer_len >> 9) & 0xffff);
6237 		} else {
6238 			/* The transfer is too big. */
6239 			retval = 1;
6240 			goto bailout;
6241 		}
6242 		auxiliary = (zm_action & 0xf) | (zone_flags << 8),
6243 		protocol = AP_PROTO_FPDMA;
6244 	}
6245 
6246 	protocol |= AP_EXTEND;
6247 
6248 	retval = scsi_ata_pass(csio,
6249 	    retries,
6250 	    cbfcnp,
6251 	    /*flags*/ CAM_DIR_IN,
6252 	    tag_action,
6253 	    /*protocol*/ protocol,
6254 	    /*ata_flags*/ ata_flags,
6255 	    /*features*/ features_out,
6256 	    /*sector_count*/ sectors_out,
6257 	    /*lba*/ zone_id,
6258 	    /*command*/ command_out,
6259 	    /*device*/ 0,
6260 	    /*icc*/ 0,
6261 	    /*auxiliary*/ auxiliary,
6262 	    /*control*/ 0,
6263 	    /*data_ptr*/ data_ptr,
6264 	    /*dxfer_len*/ (dxfer_len >> 9) * 512, /* XXX KDM */
6265 	    /*cdb_storage*/ cdb_storage,
6266 	    /*cdb_storage_len*/ cdb_storage_len,
6267 	    /*minimum_cmd_size*/ 0,
6268 	    /*sense_len*/ SSD_FULL_SIZE,
6269 	    /*timeout*/ timeout);
6270 
6271 bailout:
6272 	return (retval);
6273 }
6274