scsi_da.c revision 344221
1/*-
2 * Implementation of SCSI Direct Access Peripheral driver for CAM.
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions, and the following disclaimer,
12 *    without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: stable/10/sys/cam/scsi/scsi_da.c 344221 2019-02-17 02:58:44Z avos $");
31
32#include <sys/param.h>
33
34#ifdef _KERNEL
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/bio.h>
38#include <sys/sysctl.h>
39#include <sys/taskqueue.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42#include <sys/conf.h>
43#include <sys/devicestat.h>
44#include <sys/eventhandler.h>
45#include <sys/malloc.h>
46#include <sys/cons.h>
47#include <sys/endian.h>
48#include <sys/proc.h>
49#include <geom/geom.h>
50#include <geom/geom_disk.h>
51#endif /* _KERNEL */
52
53#ifndef _KERNEL
54#include <stdio.h>
55#include <string.h>
56#endif /* _KERNEL */
57
58#include <cam/cam.h>
59#include <cam/cam_ccb.h>
60#include <cam/cam_periph.h>
61#include <cam/cam_xpt_periph.h>
62#include <cam/cam_sim.h>
63
64#include <cam/scsi/scsi_message.h>
65
66#ifndef _KERNEL
67#include <cam/scsi/scsi_da.h>
68#endif /* !_KERNEL */
69
70#ifdef _KERNEL
71typedef enum {
72	DA_STATE_PROBE_WP,
73	DA_STATE_PROBE_RC,
74	DA_STATE_PROBE_RC16,
75	DA_STATE_PROBE_LBP,
76	DA_STATE_PROBE_BLK_LIMITS,
77	DA_STATE_PROBE_BDC,
78	DA_STATE_PROBE_ATA,
79	DA_STATE_NORMAL
80} da_state;
81
82typedef enum {
83	DA_FLAG_PACK_INVALID	= 0x001,
84	DA_FLAG_NEW_PACK	= 0x002,
85	DA_FLAG_PACK_LOCKED	= 0x004,
86	DA_FLAG_PACK_REMOVABLE	= 0x008,
87	DA_FLAG_NEED_OTAG	= 0x020,
88	DA_FLAG_WAS_OTAG	= 0x040,
89	DA_FLAG_RETRY_UA	= 0x080,
90	DA_FLAG_OPEN		= 0x100,
91	DA_FLAG_SCTX_INIT	= 0x200,
92	DA_FLAG_CAN_RC16	= 0x400,
93	DA_FLAG_PROBED		= 0x800,
94	DA_FLAG_DIRTY		= 0x1000,
95	DA_FLAG_ANNOUNCED	= 0x2000
96} da_flags;
97
98typedef enum {
99	DA_Q_NONE		= 0x00,
100	DA_Q_NO_SYNC_CACHE	= 0x01,
101	DA_Q_NO_6_BYTE		= 0x02,
102	DA_Q_NO_PREVENT		= 0x04,
103	DA_Q_4K			= 0x08,
104	DA_Q_NO_RC16		= 0x10,
105	DA_Q_NO_UNMAP		= 0x20,
106	DA_Q_RETRY_BUSY		= 0x40
107} da_quirks;
108
109#define DA_Q_BIT_STRING		\
110	"\020"			\
111	"\001NO_SYNC_CACHE"	\
112	"\002NO_6_BYTE"		\
113	"\003NO_PREVENT"	\
114	"\0044K"		\
115	"\005NO_RC16"		\
116	"\006NO_UNMAP"		\
117	"\007RETRY_BUSY"
118
119typedef enum {
120	DA_CCB_PROBE_RC		= 0x01,
121	DA_CCB_PROBE_RC16	= 0x02,
122	DA_CCB_PROBE_LBP	= 0x03,
123	DA_CCB_PROBE_BLK_LIMITS	= 0x04,
124	DA_CCB_PROBE_BDC	= 0x05,
125	DA_CCB_PROBE_ATA	= 0x06,
126	DA_CCB_BUFFER_IO	= 0x07,
127	DA_CCB_DUMP		= 0x0A,
128	DA_CCB_DELETE		= 0x0B,
129 	DA_CCB_TUR		= 0x0C,
130	DA_CCB_PROBE_WP		= 0x12,
131	DA_CCB_TYPE_MASK	= 0x1F,
132	DA_CCB_RETRY_UA		= 0x20
133} da_ccb_state;
134
135/*
136 * Order here is important for method choice
137 *
138 * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
139 * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
140 * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
141 * import taking 5mins.
142 *
143 */
144typedef enum {
145	DA_DELETE_NONE,
146	DA_DELETE_DISABLE,
147	DA_DELETE_ATA_TRIM,
148	DA_DELETE_UNMAP,
149	DA_DELETE_WS16,
150	DA_DELETE_WS10,
151	DA_DELETE_ZERO,
152	DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
153	DA_DELETE_MAX = DA_DELETE_ZERO
154} da_delete_methods;
155
156typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
157			      struct bio *bp);
158static da_delete_func_t da_delete_trim;
159static da_delete_func_t da_delete_unmap;
160static da_delete_func_t da_delete_ws;
161
162static const void * da_delete_functions[] = {
163	NULL,
164	NULL,
165	da_delete_trim,
166	da_delete_unmap,
167	da_delete_ws,
168	da_delete_ws,
169	da_delete_ws
170};
171
172static const char *da_delete_method_names[] =
173    { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
174static const char *da_delete_method_desc[] =
175    { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
176      "WRITE SAME(10) with UNMAP", "ZERO" };
177
178/* Offsets into our private area for storing information */
179#define ccb_state	ppriv_field0
180#define ccb_bp		ppriv_ptr1
181
182struct disk_params {
183	u_int8_t  heads;
184	u_int32_t cylinders;
185	u_int8_t  secs_per_track;
186	u_int32_t secsize;	/* Number of bytes/sector */
187	u_int64_t sectors;	/* total number sectors */
188	u_int     stripesize;
189	u_int     stripeoffset;
190};
191
192#define UNMAP_RANGE_MAX		0xffffffff
193#define UNMAP_HEAD_SIZE		8
194#define UNMAP_RANGE_SIZE	16
195#define UNMAP_MAX_RANGES	2048 /* Protocol Max is 4095 */
196#define UNMAP_BUF_SIZE		((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
197				UNMAP_HEAD_SIZE)
198
199#define WS10_MAX_BLKS		0xffff
200#define WS16_MAX_BLKS		0xffffffff
201#define ATA_TRIM_MAX_RANGES	((UNMAP_BUF_SIZE / \
202	(ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
203
204struct da_softc {
205	struct	 bio_queue_head bio_queue;
206	struct	 bio_queue_head delete_queue;
207	struct	 bio_queue_head delete_run_queue;
208	LIST_HEAD(, ccb_hdr) pending_ccbs;
209	int	 tur;			/* TEST UNIT READY should be sent */
210	int	 refcount;		/* Active xpt_action() calls */
211	da_state state;
212	da_flags flags;
213	da_quirks quirks;
214	int	 sort_io_queue;
215	int	 minimum_cmd_size;
216	int	 error_inject;
217	int	 trim_max_ranges;
218	int	 delete_running;
219	int	 delete_available;	/* Delete methods possibly available */
220	u_int	 maxio;
221	uint32_t		unmap_max_ranges;
222	uint32_t		unmap_max_lba; /* Max LBAs in UNMAP req */
223	uint64_t		ws_max_blks;
224	da_delete_methods	delete_method_pref;
225	da_delete_methods	delete_method;
226	da_delete_func_t	*delete_func;
227	struct	 disk_params params;
228	struct	 disk *disk;
229	union	 ccb saved_ccb;
230	struct task		sysctl_task;
231	struct sysctl_ctx_list	sysctl_ctx;
232	struct sysctl_oid	*sysctl_tree;
233	struct callout		sendordered_c;
234	uint64_t wwpn;
235	uint8_t	 unmap_buf[UNMAP_BUF_SIZE];
236	struct scsi_read_capacity_data_long rcaplong;
237	struct callout		mediapoll_c;
238};
239
240#define dadeleteflag(softc, delete_method, enable)			\
241	if (enable) {							\
242		softc->delete_available |= (1 << delete_method);	\
243	} else {							\
244		softc->delete_available &= ~(1 << delete_method);	\
245	}
246
247struct da_quirk_entry {
248	struct scsi_inquiry_pattern inq_pat;
249	da_quirks quirks;
250};
251
252static const char quantum[] = "QUANTUM";
253static const char microp[] = "MICROP";
254
255static struct da_quirk_entry da_quirk_table[] =
256{
257	/* SPI, FC devices */
258	{
259		/*
260		 * Fujitsu M2513A MO drives.
261		 * Tested devices: M2513A2 firmware versions 1200 & 1300.
262		 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
263		 * Reported by: W.Scholten <whs@xs4all.nl>
264		 */
265		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
266		/*quirks*/ DA_Q_NO_SYNC_CACHE
267	},
268	{
269		/* See above. */
270		{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
271		/*quirks*/ DA_Q_NO_SYNC_CACHE
272	},
273	{
274		/*
275		 * This particular Fujitsu drive doesn't like the
276		 * synchronize cache command.
277		 * Reported by: Tom Jackson <toj@gorilla.net>
278		 */
279		{T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
280		/*quirks*/ DA_Q_NO_SYNC_CACHE
281	},
282	{
283		/*
284		 * This drive doesn't like the synchronize cache command
285		 * either.  Reported by: Matthew Jacob <mjacob@feral.com>
286		 * in NetBSD PR kern/6027, August 24, 1998.
287		 */
288		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
289		/*quirks*/ DA_Q_NO_SYNC_CACHE
290	},
291	{
292		/*
293		 * This drive doesn't like the synchronize cache command
294		 * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
295		 * (PR 8882).
296		 */
297		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
298		/*quirks*/ DA_Q_NO_SYNC_CACHE
299	},
300	{
301		/*
302		 * Doesn't like the synchronize cache command.
303		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
304		 */
305		{T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
306		/*quirks*/ DA_Q_NO_SYNC_CACHE
307	},
308	{
309		/*
310		 * Doesn't like the synchronize cache command.
311		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
312		 */
313		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
314		/*quirks*/ DA_Q_NO_SYNC_CACHE
315	},
316	{
317		/*
318		 * Doesn't like the synchronize cache command.
319		 */
320		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
321		/*quirks*/ DA_Q_NO_SYNC_CACHE
322	},
323	{
324		/*
325		 * Doesn't like the synchronize cache command.
326		 * Reported by: walter@pelissero.de
327		 */
328		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
329		/*quirks*/ DA_Q_NO_SYNC_CACHE
330	},
331	{
332		/*
333		 * Doesn't work correctly with 6 byte reads/writes.
334		 * Returns illegal request, and points to byte 9 of the
335		 * 6-byte CDB.
336		 * Reported by:  Adam McDougall <bsdx@spawnet.com>
337		 */
338		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
339		/*quirks*/ DA_Q_NO_6_BYTE
340	},
341	{
342		/* See above. */
343		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
344		/*quirks*/ DA_Q_NO_6_BYTE
345	},
346	{
347		/*
348		 * Doesn't like the synchronize cache command.
349		 * Reported by: walter@pelissero.de
350		 */
351		{T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
352		/*quirks*/ DA_Q_NO_SYNC_CACHE
353	},
354	{
355		/*
356		 * The CISS RAID controllers do not support SYNC_CACHE
357		 */
358		{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
359		/*quirks*/ DA_Q_NO_SYNC_CACHE
360	},
361	{
362		/*
363		 * The STEC SSDs sometimes hang on UNMAP.
364		 */
365		{T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
366		/*quirks*/ DA_Q_NO_UNMAP
367	},
368	{
369		/*
370		 * VMware returns BUSY status when storage has transient
371		 * connectivity problems, so better wait.
372		 */
373		{T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*"},
374		/*quirks*/ DA_Q_RETRY_BUSY
375	},
376	/* USB mass storage devices supported by umass(4) */
377	{
378		/*
379		 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
380		 * PR: kern/51675
381		 */
382		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
383		/*quirks*/ DA_Q_NO_SYNC_CACHE
384	},
385	{
386		/*
387		 * Power Quotient Int. (PQI) USB flash key
388		 * PR: kern/53067
389		 */
390		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
391		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
392	},
393 	{
394 		/*
395 		 * Creative Nomad MUVO mp3 player (USB)
396 		 * PR: kern/53094
397 		 */
398 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
399 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
400 	},
401	{
402		/*
403		 * Jungsoft NEXDISK USB flash key
404		 * PR: kern/54737
405		 */
406		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
407		/*quirks*/ DA_Q_NO_SYNC_CACHE
408	},
409	{
410		/*
411		 * FreeDik USB Mini Data Drive
412		 * PR: kern/54786
413		 */
414		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
415		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
416	},
417	{
418		/*
419		 * Sigmatel USB Flash MP3 Player
420		 * PR: kern/57046
421		 */
422		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
423		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
424	},
425	{
426		/*
427		 * Neuros USB Digital Audio Computer
428		 * PR: kern/63645
429		 */
430		{T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
431		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
432	},
433	{
434		/*
435		 * SEAGRAND NP-900 MP3 Player
436		 * PR: kern/64563
437		 */
438		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
439		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
440	},
441	{
442		/*
443		 * iRiver iFP MP3 player (with UMS Firmware)
444		 * PR: kern/54881, i386/63941, kern/66124
445		 */
446		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
447		/*quirks*/ DA_Q_NO_SYNC_CACHE
448 	},
449	{
450		/*
451		 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
452		 * PR: kern/70158
453		 */
454		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
455		/*quirks*/ DA_Q_NO_SYNC_CACHE
456	},
457	{
458		/*
459		 * ZICPlay USB MP3 Player with FM
460		 * PR: kern/75057
461		 */
462		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
463		/*quirks*/ DA_Q_NO_SYNC_CACHE
464	},
465	{
466		/*
467		 * TEAC USB floppy mechanisms
468		 */
469		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
470		/*quirks*/ DA_Q_NO_SYNC_CACHE
471	},
472	{
473		/*
474		 * Kingston DataTraveler II+ USB Pen-Drive.
475		 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
476		 */
477		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
478		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
479	},
480	{
481		/*
482		 * USB DISK Pro PMAP
483		 * Reported by: jhs
484		 * PR: usb/96381
485		 */
486		{T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
487		/*quirks*/ DA_Q_NO_SYNC_CACHE
488	},
489	{
490		/*
491		 * Motorola E398 Mobile Phone (TransFlash memory card).
492		 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
493		 * PR: usb/89889
494		 */
495		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
496		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
497	},
498	{
499		/*
500		 * Qware BeatZkey! Pro
501		 * PR: usb/79164
502		 */
503		{T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
504		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
505	},
506	{
507		/*
508		 * Time DPA20B 1GB MP3 Player
509		 * PR: usb/81846
510		 */
511		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
512		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
513	},
514	{
515		/*
516		 * Samsung USB key 128Mb
517		 * PR: usb/90081
518		 */
519		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
520		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
521	},
522	{
523		/*
524		 * Kingston DataTraveler 2.0 USB Flash memory.
525		 * PR: usb/89196
526		 */
527		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
528		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
529	},
530	{
531		/*
532		 * Creative MUVO Slim mp3 player (USB)
533		 * PR: usb/86131
534		 */
535		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
536		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
537		},
538	{
539		/*
540		 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
541		 * PR: usb/80487
542		 */
543		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
544		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
545	},
546	{
547		/*
548		 * SanDisk Micro Cruzer 128MB
549		 * PR: usb/75970
550		 */
551		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
552		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
553	},
554	{
555		/*
556		 * TOSHIBA TransMemory USB sticks
557		 * PR: kern/94660
558		 */
559		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
560		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
561	},
562	{
563		/*
564		 * PNY USB 3.0 Flash Drives
565		*/
566		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
567		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
568	},
569	{
570		/*
571		 * PNY USB Flash keys
572		 * PR: usb/75578, usb/72344, usb/65436
573		 */
574		{T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
575		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
576	},
577	{
578		/*
579		 * Genesys 6-in-1 Card Reader
580		 * PR: usb/94647
581		 */
582		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
583		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
584	},
585	{
586		/*
587		 * Rekam Digital CAMERA
588		 * PR: usb/98713
589		 */
590		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
591		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
592	},
593	{
594		/*
595		 * iRiver H10 MP3 player
596		 * PR: usb/102547
597		 */
598		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
599		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
600	},
601	{
602		/*
603		 * iRiver U10 MP3 player
604		 * PR: usb/92306
605		 */
606		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
607		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
608	},
609	{
610		/*
611		 * X-Micro Flash Disk
612		 * PR: usb/96901
613		 */
614		{T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
615		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
616	},
617	{
618		/*
619		 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
620		 * PR: usb/96546
621		 */
622		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
623		"1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
624	},
625	{
626		/*
627		 * Denver MP3 player
628		 * PR: usb/107101
629		 */
630		{T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
631		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
632	},
633	{
634		/*
635		 * Philips USB Key Audio KEY013
636		 * PR: usb/68412
637		 */
638		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
639		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
640	},
641	{
642		/*
643		 * JNC MP3 Player
644		 * PR: usb/94439
645		 */
646		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
647		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
648	},
649	{
650		/*
651		 * SAMSUNG MP0402H
652		 * PR: usb/108427
653		 */
654		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
655		/*quirks*/ DA_Q_NO_SYNC_CACHE
656	},
657	{
658		/*
659		 * I/O Magic USB flash - Giga Bank
660		 * PR: usb/108810
661		 */
662		{T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
663		/*quirks*/ DA_Q_NO_SYNC_CACHE
664	},
665	{
666		/*
667		 * JoyFly 128mb USB Flash Drive
668		 * PR: 96133
669		 */
670		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
671		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
672	},
673	{
674		/*
675		 * ChipsBnk usb stick
676		 * PR: 103702
677		 */
678		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
679		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
680	},
681	{
682		/*
683		 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
684		 * PR: 129858
685		 */
686		{T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
687		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
688	},
689	{
690		/*
691		 * Samsung YP-U3 mp3-player
692		 * PR: 125398
693		 */
694		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
695		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
696	},
697	{
698		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
699		 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
700	},
701	{
702		/*
703		 * Sony Cyber-Shot DSC cameras
704		 * PR: usb/137035
705		 */
706		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
707		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
708	},
709	{
710		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
711		 "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
712	},
713	{
714		/* At least several Transcent USB sticks lie on RC16. */
715		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
716		 "*"}, /*quirks*/ DA_Q_NO_RC16
717	},
718	{
719		/*
720		 * I-O Data USB Flash Disk
721		 * PR: usb/211716
722		 */
723		{T_DIRECT, SIP_MEDIA_REMOVABLE, "I-O DATA", "USB Flash Disk*",
724		 "*"}, /*quirks*/ DA_Q_NO_RC16
725	},
726	/* ATA/SATA devices over SAS/USB/... */
727	{
728		/* Hitachi Advanced Format (4k) drives */
729		{ T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
730		/*quirks*/DA_Q_4K
731	},
732	{
733		/* Samsung Advanced Format (4k) drives */
734		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
735		/*quirks*/DA_Q_4K
736	},
737	{
738		/* Samsung Advanced Format (4k) drives */
739		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
740		/*quirks*/DA_Q_4K
741	},
742	{
743		/* Samsung Advanced Format (4k) drives */
744		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
745		/*quirks*/DA_Q_4K
746	},
747	{
748		/* Samsung Advanced Format (4k) drives */
749		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
750		/*quirks*/DA_Q_4K
751	},
752	{
753		/* Seagate Barracuda Green Advanced Format (4k) drives */
754		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
755		/*quirks*/DA_Q_4K
756	},
757	{
758		/* Seagate Barracuda Green Advanced Format (4k) drives */
759		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
760		/*quirks*/DA_Q_4K
761	},
762	{
763		/* Seagate Barracuda Green Advanced Format (4k) drives */
764		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
765		/*quirks*/DA_Q_4K
766	},
767	{
768		/* Seagate Barracuda Green Advanced Format (4k) drives */
769		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
770		/*quirks*/DA_Q_4K
771	},
772	{
773		/* Seagate Barracuda Green Advanced Format (4k) drives */
774		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
775		/*quirks*/DA_Q_4K
776	},
777	{
778		/* Seagate Barracuda Green Advanced Format (4k) drives */
779		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
780		/*quirks*/DA_Q_4K
781	},
782	{
783		/* Seagate Momentus Advanced Format (4k) drives */
784		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
785		/*quirks*/DA_Q_4K
786	},
787	{
788		/* Seagate Momentus Advanced Format (4k) drives */
789		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
790		/*quirks*/DA_Q_4K
791	},
792	{
793		/* Seagate Momentus Advanced Format (4k) drives */
794		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
795		/*quirks*/DA_Q_4K
796	},
797	{
798		/* Seagate Momentus Advanced Format (4k) drives */
799		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
800		/*quirks*/DA_Q_4K
801	},
802	{
803		/* Seagate Momentus Advanced Format (4k) drives */
804		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
805		/*quirks*/DA_Q_4K
806	},
807	{
808		/* Seagate Momentus Advanced Format (4k) drives */
809		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
810		/*quirks*/DA_Q_4K
811	},
812	{
813		/* Seagate Momentus Advanced Format (4k) drives */
814		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
815		/*quirks*/DA_Q_4K
816	},
817	{
818		/* Seagate Momentus Advanced Format (4k) drives */
819		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
820		/*quirks*/DA_Q_4K
821	},
822	{
823		/* Seagate Momentus Advanced Format (4k) drives */
824		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
825		/*quirks*/DA_Q_4K
826	},
827	{
828		/* Seagate Momentus Advanced Format (4k) drives */
829		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
830		/*quirks*/DA_Q_4K
831	},
832	{
833		/* Seagate Momentus Advanced Format (4k) drives */
834		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
835		/*quirks*/DA_Q_4K
836	},
837	{
838		/* Seagate Momentus Advanced Format (4k) drives */
839		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
840		/*quirks*/DA_Q_4K
841	},
842	{
843		/* Seagate Momentus Advanced Format (4k) drives */
844		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
845		/*quirks*/DA_Q_4K
846	},
847	{
848		/* Seagate Momentus Advanced Format (4k) drives */
849		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
850		/*quirks*/DA_Q_4K
851	},
852	{
853		/* Seagate Momentus Thin Advanced Format (4k) drives */
854		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
855		/*quirks*/DA_Q_4K
856	},
857	{
858		/* Seagate Momentus Thin Advanced Format (4k) drives */
859		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
860		/*quirks*/DA_Q_4K
861	},
862	{
863		/* WDC Caviar Green Advanced Format (4k) drives */
864		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
865		/*quirks*/DA_Q_4K
866	},
867	{
868		/* WDC Caviar Green Advanced Format (4k) drives */
869		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
870		/*quirks*/DA_Q_4K
871	},
872	{
873		/* WDC Caviar Green Advanced Format (4k) drives */
874		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
875		/*quirks*/DA_Q_4K
876	},
877	{
878		/* WDC Caviar Green Advanced Format (4k) drives */
879		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
880		/*quirks*/DA_Q_4K
881	},
882	{
883		/* WDC Caviar Green Advanced Format (4k) drives */
884		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
885		/*quirks*/DA_Q_4K
886	},
887	{
888		/* WDC Caviar Green Advanced Format (4k) drives */
889		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
890		/*quirks*/DA_Q_4K
891	},
892	{
893		/* WDC Caviar Green Advanced Format (4k) drives */
894		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
895		/*quirks*/DA_Q_4K
896	},
897	{
898		/* WDC Caviar Green Advanced Format (4k) drives */
899		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
900		/*quirks*/DA_Q_4K
901	},
902	{
903		/* WDC Scorpio Black Advanced Format (4k) drives */
904		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
905		/*quirks*/DA_Q_4K
906	},
907	{
908		/* WDC Scorpio Black Advanced Format (4k) drives */
909		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
910		/*quirks*/DA_Q_4K
911	},
912	{
913		/* WDC Scorpio Black Advanced Format (4k) drives */
914		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
915		/*quirks*/DA_Q_4K
916	},
917	{
918		/* WDC Scorpio Black Advanced Format (4k) drives */
919		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
920		/*quirks*/DA_Q_4K
921	},
922	{
923		/* WDC Scorpio Blue Advanced Format (4k) drives */
924		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
925		/*quirks*/DA_Q_4K
926	},
927	{
928		/* WDC Scorpio Blue Advanced Format (4k) drives */
929		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
930		/*quirks*/DA_Q_4K
931	},
932	{
933		/* WDC Scorpio Blue Advanced Format (4k) drives */
934		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
935		/*quirks*/DA_Q_4K
936	},
937	{
938		/* WDC Scorpio Blue Advanced Format (4k) drives */
939		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
940		/*quirks*/DA_Q_4K
941	},
942	{
943		/*
944		 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1)
945		 * PR: usb/97472
946		 */
947		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C*", "*"},
948		/*quirks*/ DA_Q_NO_6_BYTE | DA_Q_NO_SYNC_CACHE
949	},
950	{
951		/*
952		 * Olympus digital cameras (D-370)
953		 * PR: usb/97472
954		 */
955		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "D*", "*"},
956		/*quirks*/ DA_Q_NO_6_BYTE
957	},
958	{
959		/*
960		 * Olympus digital cameras (E-100RS, E-10).
961		 * PR: usb/97472
962		 */
963		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E*", "*"},
964		/*quirks*/ DA_Q_NO_6_BYTE | DA_Q_NO_SYNC_CACHE
965	},
966	{
967		/*
968		 * Olympus FE-210 camera
969		 */
970		{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
971		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
972	},
973	{
974		/*
975		 * LG UP3S MP3 player
976		 */
977		{T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
978		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
979	},
980	{
981		/*
982		 * Laser MP3-2GA13 MP3 player
983		 */
984		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
985		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
986	},
987	{
988		/*
989		 * LaCie external 250GB Hard drive des by Porsche
990		 * Submitted by: Ben Stuyts <ben@altesco.nl>
991		 * PR: 121474
992		 */
993		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
994		/*quirks*/ DA_Q_NO_SYNC_CACHE
995	},
996	/* SATA SSDs */
997	{
998		/*
999		 * Corsair Force 2 SSDs
1000		 * 4k optimised & trim only works in 4k requests + 4k aligned
1001		 */
1002		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
1003		/*quirks*/DA_Q_4K
1004	},
1005	{
1006		/*
1007		 * Corsair Force 3 SSDs
1008		 * 4k optimised & trim only works in 4k requests + 4k aligned
1009		 */
1010		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
1011		/*quirks*/DA_Q_4K
1012	},
1013        {
1014		/*
1015		 * Corsair Neutron GTX SSDs
1016		 * 4k optimised & trim only works in 4k requests + 4k aligned
1017		 */
1018		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
1019		/*quirks*/DA_Q_4K
1020	},
1021	{
1022		/*
1023		 * Corsair Force GT & GS SSDs
1024		 * 4k optimised & trim only works in 4k requests + 4k aligned
1025		 */
1026		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
1027		/*quirks*/DA_Q_4K
1028	},
1029	{
1030		/*
1031		 * Crucial M4 SSDs
1032		 * 4k optimised & trim only works in 4k requests + 4k aligned
1033		 */
1034		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
1035		/*quirks*/DA_Q_4K
1036	},
1037	{
1038		/*
1039		 * Crucial RealSSD C300 SSDs
1040		 * 4k optimised
1041		 */
1042		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
1043		"*" }, /*quirks*/DA_Q_4K
1044	},
1045	{
1046		/*
1047		 * Intel 320 Series SSDs
1048		 * 4k optimised & trim only works in 4k requests + 4k aligned
1049		 */
1050		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1051		/*quirks*/DA_Q_4K
1052	},
1053	{
1054		/*
1055		 * Intel 330 Series SSDs
1056		 * 4k optimised & trim only works in 4k requests + 4k aligned
1057		 */
1058		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1059		/*quirks*/DA_Q_4K
1060	},
1061	{
1062		/*
1063		 * Intel 510 Series SSDs
1064		 * 4k optimised & trim only works in 4k requests + 4k aligned
1065		 */
1066		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1067		/*quirks*/DA_Q_4K
1068	},
1069	{
1070		/*
1071		 * Intel 520 Series SSDs
1072		 * 4k optimised & trim only works in 4k requests + 4k aligned
1073		 */
1074		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1075		/*quirks*/DA_Q_4K
1076	},
1077	{
1078		/*
1079		 * Intel X25-M Series SSDs
1080		 * 4k optimised & trim only works in 4k requests + 4k aligned
1081		 */
1082		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1083		/*quirks*/DA_Q_4K
1084	},
1085	{
1086		/*
1087		 * Kingston E100 Series SSDs
1088		 * 4k optimised & trim only works in 4k requests + 4k aligned
1089		 */
1090		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1091		/*quirks*/DA_Q_4K
1092	},
1093	{
1094		/*
1095		 * Kingston HyperX 3k SSDs
1096		 * 4k optimised & trim only works in 4k requests + 4k aligned
1097		 */
1098		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1099		/*quirks*/DA_Q_4K
1100	},
1101	{
1102		/*
1103		 * Marvell SSDs (entry taken from OpenSolaris)
1104		 * 4k optimised & trim only works in 4k requests + 4k aligned
1105		 */
1106		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1107		/*quirks*/DA_Q_4K
1108	},
1109	{
1110		/*
1111		 * OCZ Agility 2 SSDs
1112		 * 4k optimised & trim only works in 4k requests + 4k aligned
1113		 */
1114		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1115		/*quirks*/DA_Q_4K
1116	},
1117	{
1118		/*
1119		 * OCZ Agility 3 SSDs
1120		 * 4k optimised & trim only works in 4k requests + 4k aligned
1121		 */
1122		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1123		/*quirks*/DA_Q_4K
1124	},
1125	{
1126		/*
1127		 * OCZ Deneva R Series SSDs
1128		 * 4k optimised & trim only works in 4k requests + 4k aligned
1129		 */
1130		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1131		/*quirks*/DA_Q_4K
1132	},
1133	{
1134		/*
1135		 * OCZ Vertex 2 SSDs (inc pro series)
1136		 * 4k optimised & trim only works in 4k requests + 4k aligned
1137		 */
1138		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1139		/*quirks*/DA_Q_4K
1140	},
1141	{
1142		/*
1143		 * OCZ Vertex 3 SSDs
1144		 * 4k optimised & trim only works in 4k requests + 4k aligned
1145		 */
1146		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1147		/*quirks*/DA_Q_4K
1148	},
1149	{
1150		/*
1151		 * OCZ Vertex 4 SSDs
1152		 * 4k optimised & trim only works in 4k requests + 4k aligned
1153		 */
1154		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1155		/*quirks*/DA_Q_4K
1156	},
1157	{
1158		/*
1159		 * Samsung 830 Series SSDs
1160		 * 4k optimised & trim only works in 4k requests + 4k aligned
1161		 */
1162		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1163		/*quirks*/DA_Q_4K
1164	},
1165	{
1166		/*
1167		 * Samsung 840 SSDs
1168		 * 4k optimised & trim only works in 4k requests + 4k aligned
1169		 */
1170		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1171		/*quirks*/DA_Q_4K
1172	},
1173	{
1174		/*
1175		 * Samsung 850 SSDs
1176		 * 4k optimised & trim only works in 4k requests + 4k aligned
1177		 */
1178		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
1179		/*quirks*/DA_Q_4K
1180	},
1181	{
1182		/*
1183		 * Samsung 843T Series SSDs (MZ7WD*)
1184		 * Samsung PM851 Series SSDs (MZ7TE*)
1185		 * Samsung PM853T Series SSDs (MZ7GE*)
1186		 * Samsung SM863 Series SSDs (MZ7KM*)
1187		 * 4k optimised
1188		 */
1189		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7*", "*" },
1190		/*quirks*/DA_Q_4K
1191	},
1192	{
1193		/*
1194		 * SuperTalent TeraDrive CT SSDs
1195		 * 4k optimised & trim only works in 4k requests + 4k aligned
1196		 */
1197		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1198		/*quirks*/DA_Q_4K
1199	},
1200	{
1201		/*
1202		 * XceedIOPS SATA SSDs
1203		 * 4k optimised
1204		 */
1205		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1206		/*quirks*/DA_Q_4K
1207	},
1208	{
1209		/*
1210		 * Hama Innostor USB-Stick
1211		 */
1212		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "Innostor", "Innostor*", "*" },
1213		/*quirks*/DA_Q_NO_RC16
1214	},
1215	{
1216		/*
1217		 * MX-ES USB Drive by Mach Xtreme
1218		 */
1219		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "MX", "MXUB3*", "*"},
1220		/*quirks*/DA_Q_NO_RC16
1221	},
1222};
1223
1224static	disk_strategy_t	dastrategy;
1225static	dumper_t	dadump;
1226static	periph_init_t	dainit;
1227static	void		daasync(void *callback_arg, u_int32_t code,
1228				struct cam_path *path, void *arg);
1229static	void		dasysctlinit(void *context, int pending);
1230static	int		dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1231static	int		dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1232static	int		dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1233static	void		dadeletemethodset(struct da_softc *softc,
1234					  da_delete_methods delete_method);
1235static	off_t		dadeletemaxsize(struct da_softc *softc,
1236					da_delete_methods delete_method);
1237static	void		dadeletemethodchoose(struct da_softc *softc,
1238					     da_delete_methods default_method);
1239static	void		daprobedone(struct cam_periph *periph, union ccb *ccb);
1240
1241static	periph_ctor_t	daregister;
1242static	periph_dtor_t	dacleanup;
1243static	periph_start_t	dastart;
1244static	periph_oninv_t	daoninvalidate;
1245static	void		dadone(struct cam_periph *periph,
1246			       union ccb *done_ccb);
1247static  int		daerror(union ccb *ccb, u_int32_t cam_flags,
1248				u_int32_t sense_flags);
1249static void		daprevent(struct cam_periph *periph, int action);
1250static void		dareprobe(struct cam_periph *periph);
1251static void		dasetgeom(struct cam_periph *periph, uint32_t block_len,
1252				  uint64_t maxsector,
1253				  struct scsi_read_capacity_data_long *rcaplong,
1254				  size_t rcap_size);
1255static timeout_t	dasendorderedtag;
1256static void		dashutdown(void *arg, int howto);
1257static timeout_t	damediapoll;
1258
1259#ifndef	DA_DEFAULT_POLL_PERIOD
1260#define	DA_DEFAULT_POLL_PERIOD	3
1261#endif
1262
1263#ifndef DA_DEFAULT_TIMEOUT
1264#define DA_DEFAULT_TIMEOUT 60	/* Timeout in seconds */
1265#endif
1266
1267#ifndef	DA_DEFAULT_RETRY
1268#define	DA_DEFAULT_RETRY	4
1269#endif
1270
1271#ifndef	DA_DEFAULT_SEND_ORDERED
1272#define	DA_DEFAULT_SEND_ORDERED	1
1273#endif
1274
1275#define DA_SIO (softc->sort_io_queue >= 0 ? \
1276    softc->sort_io_queue : cam_sort_io_queues)
1277
1278static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1279static int da_retry_count = DA_DEFAULT_RETRY;
1280static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1281static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1282
1283static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1284            "CAM Direct Access Disk driver");
1285SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
1286           &da_poll_period, 0, "Media polling period in seconds");
1287TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
1288SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
1289           &da_retry_count, 0, "Normal I/O retry count");
1290TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
1291SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
1292           &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1293TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
1294SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
1295           &da_send_ordered, 0, "Send Ordered Tags");
1296TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
1297
1298/*
1299 * DA_ORDEREDTAG_INTERVAL determines how often, relative
1300 * to the default timeout, we check to see whether an ordered
1301 * tagged transaction is appropriate to prevent simple tag
1302 * starvation.  Since we'd like to ensure that there is at least
1303 * 1/2 of the timeout length left for a starved transaction to
1304 * complete after we've sent an ordered tag, we must poll at least
1305 * four times in every timeout period.  This takes care of the worst
1306 * case where a starved transaction starts during an interval that
1307 * meets the requirement "don't send an ordered tag" test so it takes
1308 * us two intervals to determine that a tag must be sent.
1309 */
1310#ifndef DA_ORDEREDTAG_INTERVAL
1311#define DA_ORDEREDTAG_INTERVAL 4
1312#endif
1313
1314static struct periph_driver dadriver =
1315{
1316	dainit, "da",
1317	TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1318};
1319
1320PERIPHDRIVER_DECLARE(da, dadriver);
1321
1322static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1323
1324static int
1325daopen(struct disk *dp)
1326{
1327	struct cam_periph *periph;
1328	struct da_softc *softc;
1329	int error;
1330
1331	periph = (struct cam_periph *)dp->d_drv1;
1332	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1333		return (ENXIO);
1334	}
1335
1336	cam_periph_lock(periph);
1337	if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1338		cam_periph_unlock(periph);
1339		cam_periph_release(periph);
1340		return (error);
1341	}
1342
1343	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1344	    ("daopen\n"));
1345
1346	softc = (struct da_softc *)periph->softc;
1347	dareprobe(periph);
1348
1349	/* Wait for the disk size update.  */
1350	error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1351	    "dareprobe", 0);
1352	if (error != 0)
1353		xpt_print(periph->path, "unable to retrieve capacity data\n");
1354
1355	if (periph->flags & CAM_PERIPH_INVALID)
1356		error = ENXIO;
1357
1358	if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1359	    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1360		daprevent(periph, PR_PREVENT);
1361
1362	if (error == 0) {
1363		softc->flags &= ~DA_FLAG_PACK_INVALID;
1364		softc->flags |= DA_FLAG_OPEN;
1365	}
1366
1367	cam_periph_unhold(periph);
1368	cam_periph_unlock(periph);
1369
1370	if (error != 0)
1371		cam_periph_release(periph);
1372
1373	return (error);
1374}
1375
1376static int
1377daclose(struct disk *dp)
1378{
1379	struct	cam_periph *periph;
1380	struct	da_softc *softc;
1381	union	ccb *ccb;
1382	int error;
1383
1384	periph = (struct cam_periph *)dp->d_drv1;
1385	softc = (struct da_softc *)periph->softc;
1386	cam_periph_lock(periph);
1387	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1388	    ("daclose\n"));
1389
1390	if (cam_periph_hold(periph, PRIBIO) == 0) {
1391
1392		/* Flush disk cache. */
1393		if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1394		    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1395		    (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1396			ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1397			scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1398			    /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1399			    /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1400			    5 * 60 * 1000);
1401			error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1402			    /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1403			    softc->disk->d_devstat);
1404			softc->flags &= ~DA_FLAG_DIRTY;
1405			xpt_release_ccb(ccb);
1406		}
1407
1408		/* Allow medium removal. */
1409		if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1410		    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1411			daprevent(periph, PR_ALLOW);
1412
1413		cam_periph_unhold(periph);
1414	}
1415
1416	/*
1417	 * If we've got removeable media, mark the blocksize as
1418	 * unavailable, since it could change when new media is
1419	 * inserted.
1420	 */
1421	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1422		softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1423
1424	softc->flags &= ~DA_FLAG_OPEN;
1425	while (softc->refcount != 0)
1426		cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1427	cam_periph_unlock(periph);
1428	cam_periph_release(periph);
1429	return (0);
1430}
1431
1432static void
1433daschedule(struct cam_periph *periph)
1434{
1435	struct da_softc *softc = (struct da_softc *)periph->softc;
1436
1437	if (softc->state != DA_STATE_NORMAL)
1438		return;
1439
1440	/* Check if we have more work to do. */
1441	if (bioq_first(&softc->bio_queue) ||
1442	    (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1443	    softc->tur) {
1444		xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1445	}
1446}
1447
1448/*
1449 * Actually translate the requested transfer into one the physical driver
1450 * can understand.  The transfer is described by a buf and will include
1451 * only one physical transfer.
1452 */
1453static void
1454dastrategy(struct bio *bp)
1455{
1456	struct cam_periph *periph;
1457	struct da_softc *softc;
1458
1459	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1460	softc = (struct da_softc *)periph->softc;
1461
1462	cam_periph_lock(periph);
1463
1464	/*
1465	 * If the device has been made invalid, error out
1466	 */
1467	if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1468		cam_periph_unlock(periph);
1469		biofinish(bp, NULL, ENXIO);
1470		return;
1471	}
1472
1473	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1474
1475	/*
1476	 * Place it in the queue of disk activities for this disk
1477	 */
1478	if (bp->bio_cmd == BIO_DELETE) {
1479		bioq_disksort(&softc->delete_queue, bp);
1480	} else if (DA_SIO) {
1481		bioq_disksort(&softc->bio_queue, bp);
1482	} else {
1483		bioq_insert_tail(&softc->bio_queue, bp);
1484	}
1485
1486	/*
1487	 * Schedule ourselves for performing the work.
1488	 */
1489	daschedule(periph);
1490	cam_periph_unlock(periph);
1491
1492	return;
1493}
1494
1495static int
1496dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1497{
1498	struct	    cam_periph *periph;
1499	struct	    da_softc *softc;
1500	u_int	    secsize;
1501	struct	    ccb_scsiio csio;
1502	struct	    disk *dp;
1503	int	    error = 0;
1504
1505	dp = arg;
1506	periph = dp->d_drv1;
1507	softc = (struct da_softc *)periph->softc;
1508	cam_periph_lock(periph);
1509	secsize = softc->params.secsize;
1510
1511	if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1512		cam_periph_unlock(periph);
1513		return (ENXIO);
1514	}
1515
1516	if (length > 0) {
1517		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1518		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1519		scsi_read_write(&csio,
1520				/*retries*/0,
1521				dadone,
1522				MSG_ORDERED_Q_TAG,
1523				/*read*/SCSI_RW_WRITE,
1524				/*byte2*/0,
1525				/*minimum_cmd_size*/ softc->minimum_cmd_size,
1526				offset / secsize,
1527				length / secsize,
1528				/*data_ptr*/(u_int8_t *) virtual,
1529				/*dxfer_len*/length,
1530				/*sense_len*/SSD_FULL_SIZE,
1531				da_default_timeout * 1000);
1532		xpt_polled_action((union ccb *)&csio);
1533
1534		error = cam_periph_error((union ccb *)&csio,
1535		    0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1536		if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1537			cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1538			    /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1539		if (error != 0)
1540			printf("Aborting dump due to I/O error.\n");
1541		cam_periph_unlock(periph);
1542		return (error);
1543	}
1544
1545	/*
1546	 * Sync the disk cache contents to the physical media.
1547	 */
1548	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1549
1550		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1551		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1552		scsi_synchronize_cache(&csio,
1553				       /*retries*/0,
1554				       /*cbfcnp*/dadone,
1555				       MSG_SIMPLE_Q_TAG,
1556				       /*begin_lba*/0,/* Cover the whole disk */
1557				       /*lb_count*/0,
1558				       SSD_FULL_SIZE,
1559				       5 * 60 * 1000);
1560		xpt_polled_action((union ccb *)&csio);
1561
1562		error = cam_periph_error((union ccb *)&csio,
1563		    0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1564		if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1565			cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1566			    /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1567		if (error != 0)
1568			xpt_print(periph->path, "Synchronize cache failed\n");
1569	}
1570	cam_periph_unlock(periph);
1571	return (error);
1572}
1573
1574static int
1575dagetattr(struct bio *bp)
1576{
1577	int ret;
1578	struct cam_periph *periph;
1579
1580	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1581	cam_periph_lock(periph);
1582	ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1583	    periph->path);
1584	cam_periph_unlock(periph);
1585	if (ret == 0)
1586		bp->bio_completed = bp->bio_length;
1587	return ret;
1588}
1589
1590static void
1591dainit(void)
1592{
1593	cam_status status;
1594
1595	/*
1596	 * Install a global async callback.  This callback will
1597	 * receive async callbacks like "new device found".
1598	 */
1599	status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1600
1601	if (status != CAM_REQ_CMP) {
1602		printf("da: Failed to attach master async callback "
1603		       "due to status 0x%x!\n", status);
1604	} else if (da_send_ordered) {
1605
1606		/* Register our shutdown event handler */
1607		if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1608					   NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1609		    printf("dainit: shutdown event registration failed!\n");
1610	}
1611}
1612
1613/*
1614 * Callback from GEOM, called when it has finished cleaning up its
1615 * resources.
1616 */
1617static void
1618dadiskgonecb(struct disk *dp)
1619{
1620	struct cam_periph *periph;
1621
1622	periph = (struct cam_periph *)dp->d_drv1;
1623	cam_periph_release(periph);
1624}
1625
1626static void
1627daoninvalidate(struct cam_periph *periph)
1628{
1629	struct da_softc *softc;
1630
1631	softc = (struct da_softc *)periph->softc;
1632
1633	/*
1634	 * De-register any async callbacks.
1635	 */
1636	xpt_register_async(0, daasync, periph, periph->path);
1637
1638	softc->flags |= DA_FLAG_PACK_INVALID;
1639
1640	/*
1641	 * Return all queued I/O with ENXIO.
1642	 * XXX Handle any transactions queued to the card
1643	 *     with XPT_ABORT_CCB.
1644	 */
1645	bioq_flush(&softc->bio_queue, NULL, ENXIO);
1646	bioq_flush(&softc->delete_queue, NULL, ENXIO);
1647
1648	/*
1649	 * Tell GEOM that we've gone away, we'll get a callback when it is
1650	 * done cleaning up its resources.
1651	 */
1652	disk_gone(softc->disk);
1653}
1654
1655static void
1656dacleanup(struct cam_periph *periph)
1657{
1658	struct da_softc *softc;
1659
1660	softc = (struct da_softc *)periph->softc;
1661
1662	cam_periph_unlock(periph);
1663
1664	/*
1665	 * If we can't free the sysctl tree, oh well...
1666	 */
1667	if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1668	    && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1669		xpt_print(periph->path, "can't remove sysctl context\n");
1670	}
1671
1672	callout_drain(&softc->mediapoll_c);
1673	disk_destroy(softc->disk);
1674	callout_drain(&softc->sendordered_c);
1675	free(softc, M_DEVBUF);
1676	cam_periph_lock(periph);
1677}
1678
1679static void
1680daasync(void *callback_arg, u_int32_t code,
1681	struct cam_path *path, void *arg)
1682{
1683	struct cam_periph *periph;
1684	struct da_softc *softc;
1685
1686	periph = (struct cam_periph *)callback_arg;
1687	switch (code) {
1688	case AC_FOUND_DEVICE:
1689	{
1690		struct ccb_getdev *cgd;
1691		cam_status status;
1692
1693		cgd = (struct ccb_getdev *)arg;
1694		if (cgd == NULL)
1695			break;
1696
1697		if (cgd->protocol != PROTO_SCSI)
1698			break;
1699		if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
1700			break;
1701		if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1702		    && SID_TYPE(&cgd->inq_data) != T_RBC
1703		    && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1704			break;
1705
1706		/*
1707		 * Allocate a peripheral instance for
1708		 * this device and start the probe
1709		 * process.
1710		 */
1711		status = cam_periph_alloc(daregister, daoninvalidate,
1712					  dacleanup, dastart,
1713					  "da", CAM_PERIPH_BIO,
1714					  path, daasync,
1715					  AC_FOUND_DEVICE, cgd);
1716
1717		if (status != CAM_REQ_CMP
1718		 && status != CAM_REQ_INPROG)
1719			printf("daasync: Unable to attach to new device "
1720				"due to status 0x%x\n", status);
1721		return;
1722	}
1723	case AC_ADVINFO_CHANGED:
1724	{
1725		uintptr_t buftype;
1726
1727		buftype = (uintptr_t)arg;
1728		if (buftype == CDAI_TYPE_PHYS_PATH) {
1729			struct da_softc *softc;
1730
1731			softc = periph->softc;
1732			disk_attr_changed(softc->disk, "GEOM::physpath",
1733					  M_NOWAIT);
1734		}
1735		break;
1736	}
1737	case AC_UNIT_ATTENTION:
1738	{
1739		union ccb *ccb;
1740		int error_code, sense_key, asc, ascq;
1741
1742		softc = (struct da_softc *)periph->softc;
1743		ccb = (union ccb *)arg;
1744
1745		/*
1746		 * Handle all UNIT ATTENTIONs except our own,
1747		 * as they will be handled by daerror().
1748		 */
1749		if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1750		    scsi_extract_sense_ccb(ccb,
1751		     &error_code, &sense_key, &asc, &ascq)) {
1752			if (asc == 0x2A && ascq == 0x09) {
1753				xpt_print(ccb->ccb_h.path,
1754				    "Capacity data has changed\n");
1755				softc->flags &= ~DA_FLAG_PROBED;
1756				dareprobe(periph);
1757			} else if (asc == 0x28 && ascq == 0x00) {
1758				softc->flags &= ~DA_FLAG_PROBED;
1759				disk_media_changed(softc->disk, M_NOWAIT);
1760			} else if (asc == 0x3F && ascq == 0x03) {
1761				xpt_print(ccb->ccb_h.path,
1762				    "INQUIRY data has changed\n");
1763				softc->flags &= ~DA_FLAG_PROBED;
1764				dareprobe(periph);
1765			}
1766		}
1767		cam_periph_async(periph, code, path, arg);
1768		break;
1769	}
1770	case AC_SCSI_AEN:
1771		softc = (struct da_softc *)periph->softc;
1772		if (!softc->tur) {
1773			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1774				softc->tur = 1;
1775				daschedule(periph);
1776			}
1777		}
1778		/* FALLTHROUGH */
1779	case AC_SENT_BDR:
1780	case AC_BUS_RESET:
1781	{
1782		struct ccb_hdr *ccbh;
1783
1784		softc = (struct da_softc *)periph->softc;
1785		/*
1786		 * Don't fail on the expected unit attention
1787		 * that will occur.
1788		 */
1789		softc->flags |= DA_FLAG_RETRY_UA;
1790		LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1791			ccbh->ccb_state |= DA_CCB_RETRY_UA;
1792		break;
1793	}
1794	case AC_INQ_CHANGED:
1795		softc = (struct da_softc *)periph->softc;
1796		softc->flags &= ~DA_FLAG_PROBED;
1797		dareprobe(periph);
1798		break;
1799	default:
1800		break;
1801	}
1802	cam_periph_async(periph, code, path, arg);
1803}
1804
1805static void
1806dasysctlinit(void *context, int pending)
1807{
1808	struct cam_periph *periph;
1809	struct da_softc *softc;
1810	char tmpstr[80], tmpstr2[80];
1811	struct ccb_trans_settings cts;
1812
1813	periph = (struct cam_periph *)context;
1814	/*
1815	 * periph was held for us when this task was enqueued
1816	 */
1817	if (periph->flags & CAM_PERIPH_INVALID) {
1818		cam_periph_release(periph);
1819		return;
1820	}
1821
1822	softc = (struct da_softc *)periph->softc;
1823	snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1824	snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1825
1826	sysctl_ctx_init(&softc->sysctl_ctx);
1827	softc->flags |= DA_FLAG_SCTX_INIT;
1828	softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1829		SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1830		CTLFLAG_RD, 0, tmpstr);
1831	if (softc->sysctl_tree == NULL) {
1832		printf("dasysctlinit: unable to allocate sysctl tree\n");
1833		cam_periph_release(periph);
1834		return;
1835	}
1836
1837	/*
1838	 * Now register the sysctl handler, so the user can change the value on
1839	 * the fly.
1840	 */
1841	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1842		OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RWTUN,
1843		softc, 0, dadeletemethodsysctl, "A",
1844		"BIO_DELETE execution method");
1845	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1846		OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1847		softc, 0, dadeletemaxsysctl, "Q",
1848		"Maximum BIO_DELETE size");
1849	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1850		OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1851		&softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1852		"Minimum CDB size");
1853	SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1854		OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1855		"Sort IO queue to try and optimise disk access patterns");
1856
1857	SYSCTL_ADD_INT(&softc->sysctl_ctx,
1858		       SYSCTL_CHILDREN(softc->sysctl_tree),
1859		       OID_AUTO,
1860		       "error_inject",
1861		       CTLFLAG_RW,
1862		       &softc->error_inject,
1863		       0,
1864		       "error_inject leaf");
1865
1866
1867	/*
1868	 * Add some addressing info.
1869	 */
1870	memset(&cts, 0, sizeof (cts));
1871	xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1872	cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1873	cts.type = CTS_TYPE_CURRENT_SETTINGS;
1874	cam_periph_lock(periph);
1875	xpt_action((union ccb *)&cts);
1876	cam_periph_unlock(periph);
1877	if (cts.ccb_h.status != CAM_REQ_CMP) {
1878		cam_periph_release(periph);
1879		return;
1880	}
1881	if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1882		struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1883		if (fc->valid & CTS_FC_VALID_WWPN) {
1884			softc->wwpn = fc->wwpn;
1885			SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1886			    SYSCTL_CHILDREN(softc->sysctl_tree),
1887			    OID_AUTO, "wwpn", CTLFLAG_RD,
1888			    &softc->wwpn, "World Wide Port Name");
1889		}
1890	}
1891	cam_periph_release(periph);
1892}
1893
1894static int
1895dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1896{
1897	int error;
1898	uint64_t value;
1899	struct da_softc *softc;
1900
1901	softc = (struct da_softc *)arg1;
1902
1903	value = softc->disk->d_delmaxsize;
1904	error = sysctl_handle_64(oidp, &value, 0, req);
1905	if ((error != 0) || (req->newptr == NULL))
1906		return (error);
1907
1908	/* only accept values smaller than the calculated value */
1909	if (value > dadeletemaxsize(softc, softc->delete_method)) {
1910		return (EINVAL);
1911	}
1912	softc->disk->d_delmaxsize = value;
1913
1914	return (0);
1915}
1916
1917static int
1918dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1919{
1920	int error, value;
1921
1922	value = *(int *)arg1;
1923
1924	error = sysctl_handle_int(oidp, &value, 0, req);
1925
1926	if ((error != 0)
1927	 || (req->newptr == NULL))
1928		return (error);
1929
1930	/*
1931	 * Acceptable values here are 6, 10, 12 or 16.
1932	 */
1933	if (value < 6)
1934		value = 6;
1935	else if ((value > 6)
1936	      && (value <= 10))
1937		value = 10;
1938	else if ((value > 10)
1939	      && (value <= 12))
1940		value = 12;
1941	else if (value > 12)
1942		value = 16;
1943
1944	*(int *)arg1 = value;
1945
1946	return (0);
1947}
1948
1949static void
1950dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1951{
1952
1953	softc->delete_method = delete_method;
1954	softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1955	softc->delete_func = da_delete_functions[delete_method];
1956
1957	if (softc->delete_method > DA_DELETE_DISABLE)
1958		softc->disk->d_flags |= DISKFLAG_CANDELETE;
1959	else
1960		softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1961}
1962
1963static off_t
1964dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1965{
1966	off_t sectors;
1967
1968	switch(delete_method) {
1969	case DA_DELETE_UNMAP:
1970		sectors = (off_t)softc->unmap_max_lba;
1971		break;
1972	case DA_DELETE_ATA_TRIM:
1973		sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1974		break;
1975	case DA_DELETE_WS16:
1976		sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
1977		break;
1978	case DA_DELETE_ZERO:
1979	case DA_DELETE_WS10:
1980		sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
1981		break;
1982	default:
1983		return 0;
1984	}
1985
1986	return (off_t)softc->params.secsize *
1987	    omin(sectors, softc->params.sectors);
1988}
1989
1990static void
1991daprobedone(struct cam_periph *periph, union ccb *ccb)
1992{
1993	struct da_softc *softc;
1994
1995	softc = (struct da_softc *)periph->softc;
1996
1997	dadeletemethodchoose(softc, DA_DELETE_NONE);
1998
1999	if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
2000		char buf[80];
2001		int i, sep;
2002
2003		snprintf(buf, sizeof(buf), "Delete methods: <");
2004		sep = 0;
2005		for (i = 0; i <= DA_DELETE_MAX; i++) {
2006			if ((softc->delete_available & (1 << i)) == 0 &&
2007			    i != softc->delete_method)
2008				continue;
2009			if (sep)
2010				strlcat(buf, ",", sizeof(buf));
2011			strlcat(buf, da_delete_method_names[i],
2012			    sizeof(buf));
2013			if (i == softc->delete_method)
2014				strlcat(buf, "(*)", sizeof(buf));
2015			sep = 1;
2016		}
2017		strlcat(buf, ">", sizeof(buf));
2018		printf("%s%d: %s\n", periph->periph_name,
2019		    periph->unit_number, buf);
2020	}
2021
2022	/*
2023	 * Since our peripheral may be invalidated by an error
2024	 * above or an external event, we must release our CCB
2025	 * before releasing the probe lock on the peripheral.
2026	 * The peripheral will only go away once the last lock
2027	 * is removed, and we need it around for the CCB release
2028	 * operation.
2029	 */
2030	xpt_release_ccb(ccb);
2031	softc->state = DA_STATE_NORMAL;
2032	softc->flags |= DA_FLAG_PROBED;
2033	daschedule(periph);
2034	wakeup(&softc->disk->d_mediasize);
2035	if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
2036		softc->flags |= DA_FLAG_ANNOUNCED;
2037		cam_periph_unhold(periph);
2038	} else
2039		cam_periph_release_locked(periph);
2040}
2041
2042static void
2043dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
2044{
2045	int i, methods;
2046
2047	/* If available, prefer the method requested by user. */
2048	i = softc->delete_method_pref;
2049	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2050	if (methods & (1 << i)) {
2051		dadeletemethodset(softc, i);
2052		return;
2053	}
2054
2055	/* Use the pre-defined order to choose the best performing delete. */
2056	for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
2057		if (i == DA_DELETE_ZERO)
2058			continue;
2059		if (softc->delete_available & (1 << i)) {
2060			dadeletemethodset(softc, i);
2061			return;
2062		}
2063	}
2064
2065	/* Fallback to default. */
2066	dadeletemethodset(softc, default_method);
2067}
2068
2069static int
2070dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
2071{
2072	char buf[16];
2073	const char *p;
2074	struct da_softc *softc;
2075	int i, error, methods, value;
2076
2077	softc = (struct da_softc *)arg1;
2078
2079	value = softc->delete_method;
2080	if (value < 0 || value > DA_DELETE_MAX)
2081		p = "UNKNOWN";
2082	else
2083		p = da_delete_method_names[value];
2084	strncpy(buf, p, sizeof(buf));
2085	error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2086	if (error != 0 || req->newptr == NULL)
2087		return (error);
2088	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2089	for (i = 0; i <= DA_DELETE_MAX; i++) {
2090		if (strcmp(buf, da_delete_method_names[i]) == 0)
2091			break;
2092	}
2093	if (i > DA_DELETE_MAX)
2094		return (EINVAL);
2095	softc->delete_method_pref = i;
2096	dadeletemethodchoose(softc, DA_DELETE_NONE);
2097	return (0);
2098}
2099
2100static cam_status
2101daregister(struct cam_periph *periph, void *arg)
2102{
2103	struct da_softc *softc;
2104	struct ccb_pathinq cpi;
2105	struct ccb_getdev *cgd;
2106	char tmpstr[80];
2107	caddr_t match;
2108
2109	cgd = (struct ccb_getdev *)arg;
2110	if (cgd == NULL) {
2111		printf("daregister: no getdev CCB, can't register device\n");
2112		return(CAM_REQ_CMP_ERR);
2113	}
2114
2115	softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2116	    M_NOWAIT|M_ZERO);
2117
2118	if (softc == NULL) {
2119		printf("daregister: Unable to probe new device. "
2120		       "Unable to allocate softc\n");
2121		return(CAM_REQ_CMP_ERR);
2122	}
2123
2124	LIST_INIT(&softc->pending_ccbs);
2125	softc->state = DA_STATE_PROBE_WP;
2126	bioq_init(&softc->bio_queue);
2127	bioq_init(&softc->delete_queue);
2128	bioq_init(&softc->delete_run_queue);
2129	if (SID_IS_REMOVABLE(&cgd->inq_data))
2130		softc->flags |= DA_FLAG_PACK_REMOVABLE;
2131	softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2132	softc->unmap_max_lba = UNMAP_RANGE_MAX;
2133	softc->ws_max_blks = WS16_MAX_BLKS;
2134	softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2135	softc->sort_io_queue = -1;
2136
2137	periph->softc = softc;
2138
2139	/*
2140	 * See if this device has any quirks.
2141	 */
2142	match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2143			       (caddr_t)da_quirk_table,
2144			       sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2145			       sizeof(*da_quirk_table), scsi_inquiry_match);
2146
2147	if (match != NULL)
2148		softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2149	else
2150		softc->quirks = DA_Q_NONE;
2151
2152	/* Check if the SIM does not want 6 byte commands */
2153	bzero(&cpi, sizeof(cpi));
2154	xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2155	cpi.ccb_h.func_code = XPT_PATH_INQ;
2156	xpt_action((union ccb *)&cpi);
2157	if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2158		softc->quirks |= DA_Q_NO_6_BYTE;
2159
2160	TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2161
2162	/*
2163	 * Take an exclusive refcount on the periph while dastart is called
2164	 * to finish the probe.  The reference will be dropped in dadone at
2165	 * the end of probe.
2166	 */
2167	(void)cam_periph_hold(periph, PRIBIO);
2168
2169	/*
2170	 * Schedule a periodic event to occasionally send an
2171	 * ordered tag to a device.
2172	 */
2173	callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2174	callout_reset(&softc->sendordered_c,
2175	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2176	    dasendorderedtag, softc);
2177
2178	cam_periph_unlock(periph);
2179	/*
2180	 * RBC devices don't have to support READ(6), only READ(10).
2181	 */
2182	if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2183		softc->minimum_cmd_size = 10;
2184	else
2185		softc->minimum_cmd_size = 6;
2186
2187	/*
2188	 * Load the user's default, if any.
2189	 */
2190	snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2191		 periph->unit_number);
2192	TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2193
2194	/*
2195	 * 6, 10, 12 and 16 are the currently permissible values.
2196	 */
2197	if (softc->minimum_cmd_size < 6)
2198		softc->minimum_cmd_size = 6;
2199	else if ((softc->minimum_cmd_size > 6)
2200	      && (softc->minimum_cmd_size <= 10))
2201		softc->minimum_cmd_size = 10;
2202	else if ((softc->minimum_cmd_size > 10)
2203	      && (softc->minimum_cmd_size <= 12))
2204		softc->minimum_cmd_size = 12;
2205	else if (softc->minimum_cmd_size > 12)
2206		softc->minimum_cmd_size = 16;
2207
2208	/* Predict whether device may support READ CAPACITY(16). */
2209	if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2210	    (softc->quirks & DA_Q_NO_RC16) == 0) {
2211		softc->flags |= DA_FLAG_CAN_RC16;
2212	}
2213
2214	/*
2215	 * Register this media as a disk.
2216	 */
2217	softc->disk = disk_alloc();
2218	softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2219			  periph->unit_number, 0,
2220			  DEVSTAT_BS_UNAVAILABLE,
2221			  SID_TYPE(&cgd->inq_data) |
2222			  XPORT_DEVSTAT_TYPE(cpi.transport),
2223			  DEVSTAT_PRIORITY_DISK);
2224	softc->disk->d_open = daopen;
2225	softc->disk->d_close = daclose;
2226	softc->disk->d_strategy = dastrategy;
2227	softc->disk->d_dump = dadump;
2228	softc->disk->d_getattr = dagetattr;
2229	softc->disk->d_gone = dadiskgonecb;
2230	softc->disk->d_name = "da";
2231	softc->disk->d_drv1 = periph;
2232	if (cpi.maxio == 0)
2233		softc->maxio = DFLTPHYS;	/* traditional default */
2234	else if (cpi.maxio > MAXPHYS)
2235		softc->maxio = MAXPHYS;		/* for safety */
2236	else
2237		softc->maxio = cpi.maxio;
2238	softc->disk->d_maxsize = softc->maxio;
2239	softc->disk->d_unit = periph->unit_number;
2240	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
2241	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2242		softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2243	if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2244		softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2245	cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2246	    sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2247	strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2248	cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2249	    cgd->inq_data.product, sizeof(cgd->inq_data.product),
2250	    sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2251	softc->disk->d_hba_vendor = cpi.hba_vendor;
2252	softc->disk->d_hba_device = cpi.hba_device;
2253	softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2254	softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2255
2256	/*
2257	 * Acquire a reference to the periph before we register with GEOM.
2258	 * We'll release this reference once GEOM calls us back (via
2259	 * dadiskgonecb()) telling us that our provider has been freed.
2260	 */
2261	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2262		xpt_print(periph->path, "%s: lost periph during "
2263			  "registration!\n", __func__);
2264		cam_periph_lock(periph);
2265		return (CAM_REQ_CMP_ERR);
2266	}
2267
2268	disk_create(softc->disk, DISK_VERSION);
2269	cam_periph_lock(periph);
2270
2271	/*
2272	 * Add async callbacks for events of interest.
2273	 * I don't bother checking if this fails as,
2274	 * in most cases, the system will function just
2275	 * fine without them and the only alternative
2276	 * would be to not attach the device on failure.
2277	 */
2278	xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2279	    AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION |
2280	    AC_INQ_CHANGED, daasync, periph, periph->path);
2281
2282	/*
2283	 * Emit an attribute changed notification just in case
2284	 * physical path information arrived before our async
2285	 * event handler was registered, but after anyone attaching
2286	 * to our disk device polled it.
2287	 */
2288	disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2289
2290	/*
2291	 * Schedule a periodic media polling events.
2292	 */
2293	callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2294	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2295	    (cgd->inq_flags & SID_AEN) == 0 &&
2296	    da_poll_period != 0)
2297		callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2298		    damediapoll, periph);
2299
2300	xpt_schedule(periph, CAM_PRIORITY_DEV);
2301
2302	return(CAM_REQ_CMP);
2303}
2304
2305static void
2306dastart(struct cam_periph *periph, union ccb *start_ccb)
2307{
2308	struct da_softc *softc;
2309
2310	softc = (struct da_softc *)periph->softc;
2311
2312	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2313
2314skipstate:
2315	switch (softc->state) {
2316	case DA_STATE_NORMAL:
2317	{
2318		struct bio *bp;
2319		uint8_t tag_code;
2320
2321		/* Run BIO_DELETE if not running yet. */
2322		if (!softc->delete_running &&
2323		    (bp = bioq_first(&softc->delete_queue)) != NULL) {
2324			if (softc->delete_func != NULL) {
2325				softc->delete_func(periph, start_ccb, bp);
2326				goto out;
2327			} else {
2328				bioq_flush(&softc->delete_queue, NULL, 0);
2329				/* FALLTHROUGH */
2330			}
2331		}
2332
2333		/* Run regular command. */
2334		bp = bioq_takefirst(&softc->bio_queue);
2335		if (bp == NULL) {
2336			if (softc->tur) {
2337				softc->tur = 0;
2338				scsi_test_unit_ready(&start_ccb->csio,
2339				     /*retries*/ da_retry_count,
2340				     dadone,
2341				     MSG_SIMPLE_Q_TAG,
2342				     SSD_FULL_SIZE,
2343				     da_default_timeout * 1000);
2344				start_ccb->ccb_h.ccb_bp = NULL;
2345				start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2346				xpt_action(start_ccb);
2347			} else
2348				xpt_release_ccb(start_ccb);
2349			break;
2350		}
2351		if (softc->tur) {
2352			softc->tur = 0;
2353			cam_periph_release_locked(periph);
2354		}
2355
2356		if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2357		    (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2358			softc->flags &= ~DA_FLAG_NEED_OTAG;
2359			softc->flags |= DA_FLAG_WAS_OTAG;
2360			tag_code = MSG_ORDERED_Q_TAG;
2361		} else {
2362			tag_code = MSG_SIMPLE_Q_TAG;
2363		}
2364
2365		switch (bp->bio_cmd) {
2366		case BIO_WRITE:
2367		case BIO_READ:
2368		{
2369			void *data_ptr;
2370			int rw_op;
2371
2372			if (bp->bio_cmd == BIO_WRITE) {
2373				softc->flags |= DA_FLAG_DIRTY;
2374				rw_op = SCSI_RW_WRITE;
2375			} else {
2376				rw_op = SCSI_RW_READ;
2377			}
2378
2379			data_ptr = bp->bio_data;
2380			if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) {
2381				rw_op |= SCSI_RW_BIO;
2382				data_ptr = bp;
2383			}
2384
2385			scsi_read_write(&start_ccb->csio,
2386					/*retries*/da_retry_count,
2387					/*cbfcnp*/dadone,
2388					/*tag_action*/tag_code,
2389					rw_op,
2390					/*byte2*/0,
2391					softc->minimum_cmd_size,
2392					/*lba*/bp->bio_pblkno,
2393					/*block_count*/bp->bio_bcount /
2394					softc->params.secsize,
2395					data_ptr,
2396					/*dxfer_len*/ bp->bio_bcount,
2397					/*sense_len*/SSD_FULL_SIZE,
2398					da_default_timeout * 1000);
2399			break;
2400		}
2401		case BIO_FLUSH:
2402			/*
2403			 * BIO_FLUSH doesn't currently communicate
2404			 * range data, so we synchronize the cache
2405			 * over the whole disk.  We also force
2406			 * ordered tag semantics the flush applies
2407			 * to all previously queued I/O.
2408			 */
2409			scsi_synchronize_cache(&start_ccb->csio,
2410					       /*retries*/1,
2411					       /*cbfcnp*/dadone,
2412					       MSG_ORDERED_Q_TAG,
2413					       /*begin_lba*/0,
2414					       /*lb_count*/0,
2415					       SSD_FULL_SIZE,
2416					       da_default_timeout*1000);
2417			break;
2418		}
2419		start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2420		start_ccb->ccb_h.flags |= CAM_UNLOCKED;
2421
2422out:
2423		LIST_INSERT_HEAD(&softc->pending_ccbs,
2424				 &start_ccb->ccb_h, periph_links.le);
2425
2426		/* We expect a unit attention from this device */
2427		if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2428			start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2429			softc->flags &= ~DA_FLAG_RETRY_UA;
2430		}
2431
2432		start_ccb->ccb_h.ccb_bp = bp;
2433		softc->refcount++;
2434		cam_periph_unlock(periph);
2435		xpt_action(start_ccb);
2436		cam_periph_lock(periph);
2437		softc->refcount--;
2438
2439		/* May have more work to do, so ensure we stay scheduled */
2440		daschedule(periph);
2441		break;
2442	}
2443	case DA_STATE_PROBE_WP:
2444	{
2445		void  *mode_buf;
2446		int    mode_buf_len;
2447
2448		mode_buf_len = 192;
2449		mode_buf = malloc(mode_buf_len, M_SCSIDA, M_NOWAIT);
2450		if (mode_buf == NULL) {
2451			xpt_print(periph->path, "Unable to send mode sense - "
2452			    "malloc failure\n");
2453			softc->state = DA_STATE_PROBE_RC;
2454			goto skipstate;
2455		}
2456		scsi_mode_sense_len(&start_ccb->csio,
2457				    /*retries*/ da_retry_count,
2458				    /*cbfcnp*/ dadone,
2459				    /*tag_action*/ MSG_SIMPLE_Q_TAG,
2460				    /*dbd*/ FALSE,
2461				    /*pc*/ SMS_PAGE_CTRL_CURRENT,
2462				    /*page*/ SMS_ALL_PAGES_PAGE,
2463				    /*param_buf*/ mode_buf,
2464				    /*param_len*/ mode_buf_len,
2465				    /*minimum_cmd_size*/ softc->minimum_cmd_size,
2466				    /*sense_len*/ SSD_FULL_SIZE,
2467				    /*timeout*/ da_default_timeout * 1000);
2468		start_ccb->ccb_h.ccb_bp = NULL;
2469		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_WP;
2470		xpt_action(start_ccb);
2471		break;
2472	}
2473	case DA_STATE_PROBE_RC:
2474	{
2475		struct scsi_read_capacity_data *rcap;
2476
2477		rcap = (struct scsi_read_capacity_data *)
2478		    malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2479		if (rcap == NULL) {
2480			printf("dastart: Couldn't malloc read_capacity data\n");
2481			/* da_free_periph??? */
2482			break;
2483		}
2484		scsi_read_capacity(&start_ccb->csio,
2485				   /*retries*/da_retry_count,
2486				   dadone,
2487				   MSG_SIMPLE_Q_TAG,
2488				   rcap,
2489				   SSD_FULL_SIZE,
2490				   /*timeout*/5000);
2491		start_ccb->ccb_h.ccb_bp = NULL;
2492		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2493		xpt_action(start_ccb);
2494		break;
2495	}
2496	case DA_STATE_PROBE_RC16:
2497	{
2498		struct scsi_read_capacity_data_long *rcaplong;
2499
2500		rcaplong = (struct scsi_read_capacity_data_long *)
2501			malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2502		if (rcaplong == NULL) {
2503			printf("dastart: Couldn't malloc read_capacity data\n");
2504			/* da_free_periph??? */
2505			break;
2506		}
2507		scsi_read_capacity_16(&start_ccb->csio,
2508				      /*retries*/ da_retry_count,
2509				      /*cbfcnp*/ dadone,
2510				      /*tag_action*/ MSG_SIMPLE_Q_TAG,
2511				      /*lba*/ 0,
2512				      /*reladr*/ 0,
2513				      /*pmi*/ 0,
2514				      /*rcap_buf*/ (uint8_t *)rcaplong,
2515				      /*rcap_buf_len*/ sizeof(*rcaplong),
2516				      /*sense_len*/ SSD_FULL_SIZE,
2517				      /*timeout*/ da_default_timeout * 1000);
2518		start_ccb->ccb_h.ccb_bp = NULL;
2519		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2520		xpt_action(start_ccb);
2521		break;
2522	}
2523	case DA_STATE_PROBE_LBP:
2524	{
2525		struct scsi_vpd_logical_block_prov *lbp;
2526
2527		if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2528			/*
2529			 * If we get here we don't support any SBC-3 delete
2530			 * methods with UNMAP as the Logical Block Provisioning
2531			 * VPD page support is required for devices which
2532			 * support it according to T10/1799-D Revision 31
2533			 * however older revisions of the spec don't mandate
2534			 * this so we currently don't remove these methods
2535			 * from the available set.
2536			 */
2537			softc->state = DA_STATE_PROBE_BLK_LIMITS;
2538			goto skipstate;
2539		}
2540
2541		lbp = (struct scsi_vpd_logical_block_prov *)
2542			malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2543
2544		if (lbp == NULL) {
2545			printf("dastart: Couldn't malloc lbp data\n");
2546			/* da_free_periph??? */
2547			break;
2548		}
2549
2550		scsi_inquiry(&start_ccb->csio,
2551			     /*retries*/da_retry_count,
2552			     /*cbfcnp*/dadone,
2553			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2554			     /*inq_buf*/(u_int8_t *)lbp,
2555			     /*inq_len*/sizeof(*lbp),
2556			     /*evpd*/TRUE,
2557			     /*page_code*/SVPD_LBP,
2558			     /*sense_len*/SSD_MIN_SIZE,
2559			     /*timeout*/da_default_timeout * 1000);
2560		start_ccb->ccb_h.ccb_bp = NULL;
2561		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2562		xpt_action(start_ccb);
2563		break;
2564	}
2565	case DA_STATE_PROBE_BLK_LIMITS:
2566	{
2567		struct scsi_vpd_block_limits *block_limits;
2568
2569		if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2570			/* Not supported skip to next probe */
2571			softc->state = DA_STATE_PROBE_BDC;
2572			goto skipstate;
2573		}
2574
2575		block_limits = (struct scsi_vpd_block_limits *)
2576			malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2577
2578		if (block_limits == NULL) {
2579			printf("dastart: Couldn't malloc block_limits data\n");
2580			/* da_free_periph??? */
2581			break;
2582		}
2583
2584		scsi_inquiry(&start_ccb->csio,
2585			     /*retries*/da_retry_count,
2586			     /*cbfcnp*/dadone,
2587			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2588			     /*inq_buf*/(u_int8_t *)block_limits,
2589			     /*inq_len*/sizeof(*block_limits),
2590			     /*evpd*/TRUE,
2591			     /*page_code*/SVPD_BLOCK_LIMITS,
2592			     /*sense_len*/SSD_MIN_SIZE,
2593			     /*timeout*/da_default_timeout * 1000);
2594		start_ccb->ccb_h.ccb_bp = NULL;
2595		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2596		xpt_action(start_ccb);
2597		break;
2598	}
2599	case DA_STATE_PROBE_BDC:
2600	{
2601		struct scsi_vpd_block_characteristics *bdc;
2602
2603		if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2604			softc->state = DA_STATE_PROBE_ATA;
2605			goto skipstate;
2606		}
2607
2608		bdc = (struct scsi_vpd_block_characteristics *)
2609			malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2610
2611		if (bdc == NULL) {
2612			printf("dastart: Couldn't malloc bdc data\n");
2613			/* da_free_periph??? */
2614			break;
2615		}
2616
2617		scsi_inquiry(&start_ccb->csio,
2618			     /*retries*/da_retry_count,
2619			     /*cbfcnp*/dadone,
2620			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2621			     /*inq_buf*/(u_int8_t *)bdc,
2622			     /*inq_len*/sizeof(*bdc),
2623			     /*evpd*/TRUE,
2624			     /*page_code*/SVPD_BDC,
2625			     /*sense_len*/SSD_MIN_SIZE,
2626			     /*timeout*/da_default_timeout * 1000);
2627		start_ccb->ccb_h.ccb_bp = NULL;
2628		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2629		xpt_action(start_ccb);
2630		break;
2631	}
2632	case DA_STATE_PROBE_ATA:
2633	{
2634		struct ata_params *ata_params;
2635
2636		if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2637			daprobedone(periph, start_ccb);
2638			break;
2639		}
2640
2641		ata_params = (struct ata_params*)
2642			malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2643
2644		if (ata_params == NULL) {
2645			printf("dastart: Couldn't malloc ata_params data\n");
2646			/* da_free_periph??? */
2647			break;
2648		}
2649
2650		scsi_ata_identify(&start_ccb->csio,
2651				  /*retries*/da_retry_count,
2652				  /*cbfcnp*/dadone,
2653                                  /*tag_action*/MSG_SIMPLE_Q_TAG,
2654				  /*data_ptr*/(u_int8_t *)ata_params,
2655				  /*dxfer_len*/sizeof(*ata_params),
2656				  /*sense_len*/SSD_FULL_SIZE,
2657				  /*timeout*/da_default_timeout * 1000);
2658		start_ccb->ccb_h.ccb_bp = NULL;
2659		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2660		xpt_action(start_ccb);
2661		break;
2662	}
2663	}
2664}
2665
2666/*
2667 * In each of the methods below, while its the caller's
2668 * responsibility to ensure the request will fit into a
2669 * single device request, we might have changed the delete
2670 * method due to the device incorrectly advertising either
2671 * its supported methods or limits.
2672 *
2673 * To prevent this causing further issues we validate the
2674 * against the methods limits, and warn which would
2675 * otherwise be unnecessary.
2676 */
2677static void
2678da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2679{
2680	struct da_softc *softc = (struct da_softc *)periph->softc;;
2681	struct bio *bp1;
2682	uint8_t *buf = softc->unmap_buf;
2683	uint64_t lba, lastlba = (uint64_t)-1;
2684	uint64_t totalcount = 0;
2685	uint64_t count;
2686	uint32_t lastcount = 0, c;
2687	uint32_t off, ranges = 0;
2688
2689	/*
2690	 * Currently this doesn't take the UNMAP
2691	 * Granularity and Granularity Alignment
2692	 * fields into account.
2693	 *
2694	 * This could result in both unoptimal unmap
2695	 * requests as as well as UNMAP calls unmapping
2696	 * fewer LBA's than requested.
2697	 */
2698
2699	softc->delete_running = 1;
2700	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2701	bp1 = bp;
2702	do {
2703		bioq_remove(&softc->delete_queue, bp1);
2704		if (bp1 != bp)
2705			bioq_insert_tail(&softc->delete_run_queue, bp1);
2706		lba = bp1->bio_pblkno;
2707		count = bp1->bio_bcount / softc->params.secsize;
2708
2709		/* Try to extend the previous range. */
2710		if (lba == lastlba) {
2711			c = omin(count, UNMAP_RANGE_MAX - lastcount);
2712			lastcount += c;
2713			off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2714			      UNMAP_HEAD_SIZE;
2715			scsi_ulto4b(lastcount, &buf[off + 8]);
2716			count -= c;
2717			lba +=c;
2718			totalcount += c;
2719		}
2720
2721		while (count > 0) {
2722			c = omin(count, UNMAP_RANGE_MAX);
2723			if (totalcount + c > softc->unmap_max_lba ||
2724			    ranges >= softc->unmap_max_ranges) {
2725				xpt_print(periph->path,
2726				    "%s issuing short delete %ld > %ld"
2727				    "|| %d >= %d",
2728				    da_delete_method_desc[softc->delete_method],
2729				    totalcount + c, softc->unmap_max_lba,
2730				    ranges, softc->unmap_max_ranges);
2731				break;
2732			}
2733			off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
2734			scsi_u64to8b(lba, &buf[off + 0]);
2735			scsi_ulto4b(c, &buf[off + 8]);
2736			lba += c;
2737			totalcount += c;
2738			ranges++;
2739			count -= c;
2740			lastcount = c;
2741		}
2742		lastlba = lba;
2743		bp1 = bioq_first(&softc->delete_queue);
2744		if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
2745		    totalcount + bp1->bio_bcount /
2746		    softc->params.secsize > softc->unmap_max_lba)
2747			break;
2748	} while (1);
2749	scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2750	scsi_ulto2b(ranges * 16, &buf[2]);
2751
2752	scsi_unmap(&ccb->csio,
2753		   /*retries*/da_retry_count,
2754		   /*cbfcnp*/dadone,
2755		   /*tag_action*/MSG_SIMPLE_Q_TAG,
2756		   /*byte2*/0,
2757		   /*data_ptr*/ buf,
2758		   /*dxfer_len*/ ranges * 16 + 8,
2759		   /*sense_len*/SSD_FULL_SIZE,
2760		   da_default_timeout * 1000);
2761	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2762	ccb->ccb_h.flags |= CAM_UNLOCKED;
2763}
2764
2765static void
2766da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2767{
2768	struct da_softc *softc = (struct da_softc *)periph->softc;
2769	struct bio *bp1;
2770	uint8_t *buf = softc->unmap_buf;
2771	uint64_t lastlba = (uint64_t)-1;
2772	uint64_t count;
2773	uint64_t lba;
2774	uint32_t lastcount = 0, c, requestcount;
2775	int ranges = 0, off, block_count;
2776
2777	softc->delete_running = 1;
2778	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2779	bp1 = bp;
2780	do {
2781		bioq_remove(&softc->delete_queue, bp1);
2782		if (bp1 != bp)
2783			bioq_insert_tail(&softc->delete_run_queue, bp1);
2784		lba = bp1->bio_pblkno;
2785		count = bp1->bio_bcount / softc->params.secsize;
2786		requestcount = count;
2787
2788		/* Try to extend the previous range. */
2789		if (lba == lastlba) {
2790			c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
2791			lastcount += c;
2792			off = (ranges - 1) * 8;
2793			buf[off + 6] = lastcount & 0xff;
2794			buf[off + 7] = (lastcount >> 8) & 0xff;
2795			count -= c;
2796			lba += c;
2797		}
2798
2799		while (count > 0) {
2800			c = omin(count, ATA_DSM_RANGE_MAX);
2801			off = ranges * 8;
2802
2803			buf[off + 0] = lba & 0xff;
2804			buf[off + 1] = (lba >> 8) & 0xff;
2805			buf[off + 2] = (lba >> 16) & 0xff;
2806			buf[off + 3] = (lba >> 24) & 0xff;
2807			buf[off + 4] = (lba >> 32) & 0xff;
2808			buf[off + 5] = (lba >> 40) & 0xff;
2809			buf[off + 6] = c & 0xff;
2810			buf[off + 7] = (c >> 8) & 0xff;
2811			lba += c;
2812			ranges++;
2813			count -= c;
2814			lastcount = c;
2815			if (count != 0 && ranges == softc->trim_max_ranges) {
2816				xpt_print(periph->path,
2817				    "%s issuing short delete %ld > %ld\n",
2818				    da_delete_method_desc[softc->delete_method],
2819				    requestcount,
2820				    (softc->trim_max_ranges - ranges) *
2821				    ATA_DSM_RANGE_MAX);
2822				break;
2823			}
2824		}
2825		lastlba = lba;
2826		bp1 = bioq_first(&softc->delete_queue);
2827		if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
2828		    (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
2829			break;
2830	} while (1);
2831
2832	block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
2833	scsi_ata_trim(&ccb->csio,
2834		      /*retries*/da_retry_count,
2835		      /*cbfcnp*/dadone,
2836		      /*tag_action*/MSG_SIMPLE_Q_TAG,
2837		      block_count,
2838		      /*data_ptr*/buf,
2839		      /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2840		      /*sense_len*/SSD_FULL_SIZE,
2841		      da_default_timeout * 1000);
2842	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2843	ccb->ccb_h.flags |= CAM_UNLOCKED;
2844}
2845
2846/*
2847 * We calculate ws_max_blks here based off d_delmaxsize instead
2848 * of using softc->ws_max_blks as it is absolute max for the
2849 * device not the protocol max which may well be lower.
2850 */
2851static void
2852da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2853{
2854	struct da_softc *softc;
2855	struct bio *bp1;
2856	uint64_t ws_max_blks;
2857	uint64_t lba;
2858	uint64_t count; /* forward compat with WS32 */
2859
2860	softc = (struct da_softc *)periph->softc;
2861	ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2862	softc->delete_running = 1;
2863	lba = bp->bio_pblkno;
2864	count = 0;
2865	bp1 = bp;
2866	do {
2867		bioq_remove(&softc->delete_queue, bp1);
2868		if (bp1 != bp)
2869			bioq_insert_tail(&softc->delete_run_queue, bp1);
2870		count += bp1->bio_bcount / softc->params.secsize;
2871		if (count > ws_max_blks) {
2872			xpt_print(periph->path,
2873			    "%s issuing short delete %ld > %ld\n",
2874			    da_delete_method_desc[softc->delete_method],
2875			    count, ws_max_blks);
2876			count = omin(count, ws_max_blks);
2877			break;
2878		}
2879		bp1 = bioq_first(&softc->delete_queue);
2880		if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
2881		    count + bp1->bio_bcount /
2882		    softc->params.secsize > ws_max_blks)
2883			break;
2884	} while (1);
2885
2886	scsi_write_same(&ccb->csio,
2887			/*retries*/da_retry_count,
2888			/*cbfcnp*/dadone,
2889			/*tag_action*/MSG_SIMPLE_Q_TAG,
2890			/*byte2*/softc->delete_method ==
2891			    DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2892			softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
2893			/*lba*/lba,
2894			/*block_count*/count,
2895			/*data_ptr*/ __DECONST(void *, zero_region),
2896			/*dxfer_len*/ softc->params.secsize,
2897			/*sense_len*/SSD_FULL_SIZE,
2898			da_default_timeout * 1000);
2899	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2900	ccb->ccb_h.flags |= CAM_UNLOCKED;
2901}
2902
2903static int
2904cmd6workaround(union ccb *ccb)
2905{
2906	struct scsi_rw_6 cmd6;
2907	struct scsi_rw_10 *cmd10;
2908	struct da_softc *softc;
2909	u_int8_t *cdb;
2910	struct bio *bp;
2911	int frozen;
2912
2913	cdb = ccb->csio.cdb_io.cdb_bytes;
2914	softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2915
2916	if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2917		da_delete_methods old_method = softc->delete_method;
2918
2919		/*
2920		 * Typically there are two reasons for failure here
2921		 * 1. Delete method was detected as supported but isn't
2922		 * 2. Delete failed due to invalid params e.g. too big
2923		 *
2924		 * While we will attempt to choose an alternative delete method
2925		 * this may result in short deletes if the existing delete
2926		 * requests from geom are big for the new method chosen.
2927		 *
2928		 * This method assumes that the error which triggered this
2929		 * will not retry the io otherwise a panic will occur
2930		 */
2931		dadeleteflag(softc, old_method, 0);
2932		dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2933		if (softc->delete_method == DA_DELETE_DISABLE)
2934			xpt_print(ccb->ccb_h.path,
2935				  "%s failed, disabling BIO_DELETE\n",
2936				  da_delete_method_desc[old_method]);
2937		else
2938			xpt_print(ccb->ccb_h.path,
2939				  "%s failed, switching to %s BIO_DELETE\n",
2940				  da_delete_method_desc[old_method],
2941				  da_delete_method_desc[softc->delete_method]);
2942
2943		while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
2944			bioq_disksort(&softc->delete_queue, bp);
2945		bioq_disksort(&softc->delete_queue,
2946		    (struct bio *)ccb->ccb_h.ccb_bp);
2947		ccb->ccb_h.ccb_bp = NULL;
2948		return (0);
2949	}
2950
2951	/* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
2952	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2953	    (*cdb == PREVENT_ALLOW) &&
2954	    (softc->quirks & DA_Q_NO_PREVENT) == 0) {
2955		if (bootverbose)
2956			xpt_print(ccb->ccb_h.path,
2957			    "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
2958		softc->quirks |= DA_Q_NO_PREVENT;
2959		return (0);
2960	}
2961
2962	/* Detect unsupported SYNCHRONIZE CACHE(10). */
2963	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2964	    (*cdb == SYNCHRONIZE_CACHE) &&
2965	    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
2966		if (bootverbose)
2967			xpt_print(ccb->ccb_h.path,
2968			    "SYNCHRONIZE CACHE(10) not supported.\n");
2969		softc->quirks |= DA_Q_NO_SYNC_CACHE;
2970		softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
2971		return (0);
2972	}
2973
2974	/* Translation only possible if CDB is an array and cmd is R/W6 */
2975	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2976	    (*cdb != READ_6 && *cdb != WRITE_6))
2977		return 0;
2978
2979	xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2980	    "increasing minimum_cmd_size to 10.\n");
2981 	softc->minimum_cmd_size = 10;
2982
2983	bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2984	cmd10 = (struct scsi_rw_10 *)cdb;
2985	cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2986	cmd10->byte2 = 0;
2987	scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2988	cmd10->reserved = 0;
2989	scsi_ulto2b(cmd6.length, cmd10->length);
2990	cmd10->control = cmd6.control;
2991	ccb->csio.cdb_len = sizeof(*cmd10);
2992
2993	/* Requeue request, unfreezing queue if necessary */
2994	frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2995 	ccb->ccb_h.status = CAM_REQUEUE_REQ;
2996	xpt_action(ccb);
2997	if (frozen) {
2998		cam_release_devq(ccb->ccb_h.path,
2999				 /*relsim_flags*/0,
3000				 /*reduction*/0,
3001				 /*timeout*/0,
3002				 /*getcount_only*/0);
3003	}
3004	return (ERESTART);
3005}
3006
3007static void
3008dadone(struct cam_periph *periph, union ccb *done_ccb)
3009{
3010	struct da_softc *softc;
3011	struct ccb_scsiio *csio;
3012	u_int32_t  priority;
3013	da_ccb_state state;
3014
3015	softc = (struct da_softc *)periph->softc;
3016	priority = done_ccb->ccb_h.pinfo.priority;
3017
3018	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
3019
3020	csio = &done_ccb->csio;
3021	state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
3022	switch (state) {
3023	case DA_CCB_BUFFER_IO:
3024	case DA_CCB_DELETE:
3025	{
3026		struct bio *bp, *bp1;
3027
3028		cam_periph_lock(periph);
3029		bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
3030		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3031			int error;
3032			int sf;
3033
3034			if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
3035				sf = SF_RETRY_UA;
3036			else
3037				sf = 0;
3038
3039			error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
3040			if (error == ERESTART) {
3041				/*
3042				 * A retry was scheduled, so
3043				 * just return.
3044				 */
3045				cam_periph_unlock(periph);
3046				return;
3047			}
3048			bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
3049			if (error != 0) {
3050				int queued_error;
3051
3052				/*
3053				 * return all queued I/O with EIO, so that
3054				 * the client can retry these I/Os in the
3055				 * proper order should it attempt to recover.
3056				 */
3057				queued_error = EIO;
3058
3059				if (error == ENXIO
3060				 && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
3061					/*
3062					 * Catastrophic error.  Mark our pack as
3063					 * invalid.
3064					 */
3065					/*
3066					 * XXX See if this is really a media
3067					 * XXX change first?
3068					 */
3069					xpt_print(periph->path,
3070					    "Invalidating pack\n");
3071					softc->flags |= DA_FLAG_PACK_INVALID;
3072					queued_error = ENXIO;
3073				}
3074				bioq_flush(&softc->bio_queue, NULL,
3075					   queued_error);
3076				if (bp != NULL) {
3077					bp->bio_error = error;
3078					bp->bio_resid = bp->bio_bcount;
3079					bp->bio_flags |= BIO_ERROR;
3080				}
3081			} else if (bp != NULL) {
3082				if (state == DA_CCB_DELETE)
3083					bp->bio_resid = 0;
3084				else
3085					bp->bio_resid = csio->resid;
3086				bp->bio_error = 0;
3087				if (bp->bio_resid != 0)
3088					bp->bio_flags |= BIO_ERROR;
3089			}
3090			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3091				cam_release_devq(done_ccb->ccb_h.path,
3092						 /*relsim_flags*/0,
3093						 /*reduction*/0,
3094						 /*timeout*/0,
3095						 /*getcount_only*/0);
3096		} else if (bp != NULL) {
3097			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3098				panic("REQ_CMP with QFRZN");
3099			if (state == DA_CCB_DELETE)
3100				bp->bio_resid = 0;
3101			else
3102				bp->bio_resid = csio->resid;
3103			if (csio->resid > 0)
3104				bp->bio_flags |= BIO_ERROR;
3105			if (softc->error_inject != 0) {
3106				bp->bio_error = softc->error_inject;
3107				bp->bio_resid = bp->bio_bcount;
3108				bp->bio_flags |= BIO_ERROR;
3109				softc->error_inject = 0;
3110			}
3111		}
3112
3113		LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
3114		if (LIST_EMPTY(&softc->pending_ccbs))
3115			softc->flags |= DA_FLAG_WAS_OTAG;
3116
3117		xpt_release_ccb(done_ccb);
3118		if (state == DA_CCB_DELETE) {
3119			TAILQ_HEAD(, bio) queue;
3120
3121			TAILQ_INIT(&queue);
3122			TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
3123			softc->delete_run_queue.insert_point = NULL;
3124			/*
3125			 * Normally, the xpt_release_ccb() above would make sure
3126			 * that when we have more work to do, that work would
3127			 * get kicked off. However, we specifically keep
3128			 * delete_running set to 0 before the call above to
3129			 * allow other I/O to progress when many BIO_DELETE
3130			 * requests are pushed down. We set delete_running to 0
3131			 * and call daschedule again so that we don't stall if
3132			 * there are no other I/Os pending apart from BIO_DELETEs.
3133			 */
3134			softc->delete_running = 0;
3135			daschedule(periph);
3136			cam_periph_unlock(periph);
3137			while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
3138				TAILQ_REMOVE(&queue, bp1, bio_queue);
3139				bp1->bio_error = bp->bio_error;
3140				if (bp->bio_flags & BIO_ERROR) {
3141					bp1->bio_flags |= BIO_ERROR;
3142					bp1->bio_resid = bp1->bio_bcount;
3143				} else
3144					bp1->bio_resid = 0;
3145				biodone(bp1);
3146			}
3147		} else
3148			cam_periph_unlock(periph);
3149		if (bp != NULL)
3150			biodone(bp);
3151		return;
3152	}
3153	case DA_CCB_PROBE_WP:
3154	{
3155		struct scsi_mode_header_6 *mode_hdr6;
3156		struct scsi_mode_header_10 *mode_hdr10;
3157		uint8_t dev_spec;
3158
3159		if (softc->minimum_cmd_size > 6) {
3160			mode_hdr10 = (struct scsi_mode_header_10 *)csio->data_ptr;
3161			dev_spec = mode_hdr10->dev_spec;
3162		} else {
3163			mode_hdr6 = (struct scsi_mode_header_6 *)csio->data_ptr;
3164			dev_spec = mode_hdr6->dev_spec;
3165		}
3166		if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) {
3167			if ((dev_spec & 0x80) != 0)
3168				softc->disk->d_flags |= DISKFLAG_WRITE_PROTECT;
3169			else
3170				softc->disk->d_flags &= ~DISKFLAG_WRITE_PROTECT;
3171		} else {
3172			int error;
3173
3174			error = daerror(done_ccb, CAM_RETRY_SELTO,
3175					SF_RETRY_UA|SF_NO_PRINT);
3176			if (error == ERESTART)
3177				return;
3178			else if (error != 0) {
3179				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3180					/* Don't wedge this device's queue */
3181					cam_release_devq(done_ccb->ccb_h.path,
3182							 /*relsim_flags*/0,
3183							 /*reduction*/0,
3184							 /*timeout*/0,
3185							 /*getcount_only*/0);
3186				}
3187			}
3188		}
3189
3190		free(csio->data_ptr, M_SCSIDA);
3191		xpt_release_ccb(done_ccb);
3192		if ((softc->flags & DA_FLAG_CAN_RC16) != 0)
3193			softc->state = DA_STATE_PROBE_RC16;
3194		else
3195			softc->state = DA_STATE_PROBE_RC;
3196		xpt_schedule(periph, priority);
3197		return;
3198	}
3199	case DA_CCB_PROBE_RC:
3200	case DA_CCB_PROBE_RC16:
3201	{
3202		struct	   scsi_read_capacity_data *rdcap;
3203		struct     scsi_read_capacity_data_long *rcaplong;
3204		char	   announce_buf[80];
3205		int	   lbp;
3206
3207		lbp = 0;
3208		rdcap = NULL;
3209		rcaplong = NULL;
3210		if (state == DA_CCB_PROBE_RC)
3211			rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
3212		else
3213			rcaplong = (struct scsi_read_capacity_data_long *)
3214				csio->data_ptr;
3215
3216		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3217			struct disk_params *dp;
3218			uint32_t block_size;
3219			uint64_t maxsector;
3220			u_int lbppbe;	/* LB per physical block exponent. */
3221			u_int lalba;	/* Lowest aligned LBA. */
3222
3223			if (state == DA_CCB_PROBE_RC) {
3224				block_size = scsi_4btoul(rdcap->length);
3225				maxsector = scsi_4btoul(rdcap->addr);
3226				lbppbe = 0;
3227				lalba = 0;
3228
3229				/*
3230				 * According to SBC-2, if the standard 10
3231				 * byte READ CAPACITY command returns 2^32,
3232				 * we should issue the 16 byte version of
3233				 * the command, since the device in question
3234				 * has more sectors than can be represented
3235				 * with the short version of the command.
3236				 */
3237				if (maxsector == 0xffffffff) {
3238					free(rdcap, M_SCSIDA);
3239					xpt_release_ccb(done_ccb);
3240					softc->state = DA_STATE_PROBE_RC16;
3241					xpt_schedule(periph, priority);
3242					return;
3243				}
3244			} else {
3245				block_size = scsi_4btoul(rcaplong->length);
3246				maxsector = scsi_8btou64(rcaplong->addr);
3247				lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3248				lalba = scsi_2btoul(rcaplong->lalba_lbp);
3249			}
3250
3251			/*
3252			 * Because GEOM code just will panic us if we
3253			 * give them an 'illegal' value we'll avoid that
3254			 * here.
3255			 */
3256			if (block_size == 0) {
3257				block_size = 512;
3258				if (maxsector == 0)
3259					maxsector = -1;
3260			}
3261			if (block_size >= MAXPHYS) {
3262				xpt_print(periph->path,
3263				    "unsupportable block size %ju\n",
3264				    (uintmax_t) block_size);
3265				announce_buf[0] = '\0';
3266				cam_periph_invalidate(periph);
3267			} else {
3268				/*
3269				 * We pass rcaplong into dasetgeom(),
3270				 * because it will only use it if it is
3271				 * non-NULL.
3272				 */
3273				dasetgeom(periph, block_size, maxsector,
3274					  rcaplong, sizeof(*rcaplong));
3275				lbp = (lalba & SRC16_LBPME_A);
3276				dp = &softc->params;
3277				snprintf(announce_buf, sizeof(announce_buf),
3278				    "%juMB (%ju %u byte sectors)",
3279				    ((uintmax_t)dp->secsize * dp->sectors) /
3280				     (1024 * 1024),
3281				    (uintmax_t)dp->sectors, dp->secsize);
3282			}
3283		} else {
3284			int	error;
3285
3286			announce_buf[0] = '\0';
3287
3288			/*
3289			 * Retry any UNIT ATTENTION type errors.  They
3290			 * are expected at boot.
3291			 */
3292			error = daerror(done_ccb, CAM_RETRY_SELTO,
3293					SF_RETRY_UA|SF_NO_PRINT);
3294			if (error == ERESTART) {
3295				/*
3296				 * A retry was scheuled, so
3297				 * just return.
3298				 */
3299				return;
3300			} else if (error != 0) {
3301				int asc, ascq;
3302				int sense_key, error_code;
3303				int have_sense;
3304				cam_status status;
3305				struct ccb_getdev cgd;
3306
3307				/* Don't wedge this device's queue */
3308				status = done_ccb->ccb_h.status;
3309				if ((status & CAM_DEV_QFRZN) != 0)
3310					cam_release_devq(done_ccb->ccb_h.path,
3311							 /*relsim_flags*/0,
3312							 /*reduction*/0,
3313							 /*timeout*/0,
3314							 /*getcount_only*/0);
3315
3316
3317				xpt_setup_ccb(&cgd.ccb_h,
3318					      done_ccb->ccb_h.path,
3319					      CAM_PRIORITY_NORMAL);
3320				cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3321				xpt_action((union ccb *)&cgd);
3322
3323				if (scsi_extract_sense_ccb(done_ccb,
3324				    &error_code, &sense_key, &asc, &ascq))
3325					have_sense = TRUE;
3326				else
3327					have_sense = FALSE;
3328
3329				/*
3330				 * If we tried READ CAPACITY(16) and failed,
3331				 * fallback to READ CAPACITY(10).
3332				 */
3333				if ((state == DA_CCB_PROBE_RC16) &&
3334				    (softc->flags & DA_FLAG_CAN_RC16) &&
3335				    (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3336					CAM_REQ_INVALID) ||
3337				     ((have_sense) &&
3338				      (error_code == SSD_CURRENT_ERROR) &&
3339				      (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3340					softc->flags &= ~DA_FLAG_CAN_RC16;
3341					free(rdcap, M_SCSIDA);
3342					xpt_release_ccb(done_ccb);
3343					softc->state = DA_STATE_PROBE_RC;
3344					xpt_schedule(periph, priority);
3345					return;
3346				} else
3347				/*
3348				 * Attach to anything that claims to be a
3349				 * direct access or optical disk device,
3350				 * as long as it doesn't return a "Logical
3351				 * unit not supported" (0x25) error.
3352				 */
3353				if ((have_sense) && (asc != 0x25)
3354				 && (error_code == SSD_CURRENT_ERROR)) {
3355					const char *sense_key_desc;
3356					const char *asc_desc;
3357
3358					dasetgeom(periph, 512, -1, NULL, 0);
3359					scsi_sense_desc(sense_key, asc, ascq,
3360							&cgd.inq_data,
3361							&sense_key_desc,
3362							&asc_desc);
3363					snprintf(announce_buf,
3364					    sizeof(announce_buf),
3365						"Attempt to query device "
3366						"size failed: %s, %s",
3367						sense_key_desc,
3368						asc_desc);
3369				} else {
3370					if (have_sense)
3371						scsi_sense_print(
3372							&done_ccb->csio);
3373					else {
3374						xpt_print(periph->path,
3375						    "got CAM status %#x\n",
3376						    done_ccb->ccb_h.status);
3377					}
3378
3379					xpt_print(periph->path, "fatal error, "
3380					    "failed to attach to device\n");
3381
3382					/*
3383					 * Free up resources.
3384					 */
3385					cam_periph_invalidate(periph);
3386				}
3387			}
3388		}
3389		free(csio->data_ptr, M_SCSIDA);
3390		if (announce_buf[0] != '\0' &&
3391		    ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
3392			/*
3393			 * Create our sysctl variables, now that we know
3394			 * we have successfully attached.
3395			 */
3396			/* increase the refcount */
3397			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3398				taskqueue_enqueue(taskqueue_thread,
3399						  &softc->sysctl_task);
3400				xpt_announce_periph(periph, announce_buf);
3401				xpt_announce_quirks(periph, softc->quirks,
3402				    DA_Q_BIT_STRING);
3403			} else {
3404				xpt_print(periph->path, "fatal error, "
3405				    "could not acquire reference count\n");
3406			}
3407		}
3408
3409		/* We already probed the device. */
3410		if (softc->flags & DA_FLAG_PROBED) {
3411			daprobedone(periph, done_ccb);
3412			return;
3413		}
3414
3415		/* Ensure re-probe doesn't see old delete. */
3416		softc->delete_available = 0;
3417		dadeleteflag(softc, DA_DELETE_ZERO, 1);
3418		if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3419			/*
3420			 * Based on older SBC-3 spec revisions
3421			 * any of the UNMAP methods "may" be
3422			 * available via LBP given this flag so
3423			 * we flag all of them as available and
3424			 * then remove those which further
3425			 * probes confirm aren't available
3426			 * later.
3427			 *
3428			 * We could also check readcap(16) p_type
3429			 * flag to exclude one or more invalid
3430			 * write same (X) types here
3431			 */
3432			dadeleteflag(softc, DA_DELETE_WS16, 1);
3433			dadeleteflag(softc, DA_DELETE_WS10, 1);
3434			dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3435
3436			xpt_release_ccb(done_ccb);
3437			softc->state = DA_STATE_PROBE_LBP;
3438			xpt_schedule(periph, priority);
3439			return;
3440		}
3441
3442		xpt_release_ccb(done_ccb);
3443		softc->state = DA_STATE_PROBE_BDC;
3444		xpt_schedule(periph, priority);
3445		return;
3446	}
3447	case DA_CCB_PROBE_LBP:
3448	{
3449		struct scsi_vpd_logical_block_prov *lbp;
3450
3451		lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3452
3453		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3454			/*
3455			 * T10/1799-D Revision 31 states at least one of these
3456			 * must be supported but we don't currently enforce this.
3457			 */
3458			dadeleteflag(softc, DA_DELETE_WS16,
3459				     (lbp->flags & SVPD_LBP_WS16));
3460			dadeleteflag(softc, DA_DELETE_WS10,
3461				     (lbp->flags & SVPD_LBP_WS10));
3462			dadeleteflag(softc, DA_DELETE_UNMAP,
3463				     (lbp->flags & SVPD_LBP_UNMAP));
3464		} else {
3465			int error;
3466			error = daerror(done_ccb, CAM_RETRY_SELTO,
3467					SF_RETRY_UA|SF_NO_PRINT);
3468			if (error == ERESTART)
3469				return;
3470			else if (error != 0) {
3471				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3472					/* Don't wedge this device's queue */
3473					cam_release_devq(done_ccb->ccb_h.path,
3474							 /*relsim_flags*/0,
3475							 /*reduction*/0,
3476							 /*timeout*/0,
3477							 /*getcount_only*/0);
3478				}
3479
3480				/*
3481				 * Failure indicates we don't support any SBC-3
3482				 * delete methods with UNMAP
3483				 */
3484			}
3485		}
3486
3487		free(lbp, M_SCSIDA);
3488		xpt_release_ccb(done_ccb);
3489		softc->state = DA_STATE_PROBE_BLK_LIMITS;
3490		xpt_schedule(periph, priority);
3491		return;
3492	}
3493	case DA_CCB_PROBE_BLK_LIMITS:
3494	{
3495		struct scsi_vpd_block_limits *block_limits;
3496
3497		block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3498
3499		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3500			uint32_t max_txfer_len = scsi_4btoul(
3501				block_limits->max_txfer_len);
3502			uint32_t max_unmap_lba_cnt = scsi_4btoul(
3503				block_limits->max_unmap_lba_cnt);
3504			uint32_t max_unmap_blk_cnt = scsi_4btoul(
3505				block_limits->max_unmap_blk_cnt);
3506			uint64_t ws_max_blks = scsi_8btou64(
3507				block_limits->max_write_same_length);
3508
3509			if (max_txfer_len != 0) {
3510				softc->disk->d_maxsize = MIN(softc->maxio,
3511				    (off_t)max_txfer_len * softc->params.secsize);
3512			}
3513
3514			/*
3515			 * We should already support UNMAP but we check lba
3516			 * and block count to be sure
3517			 */
3518			if (max_unmap_lba_cnt != 0x00L &&
3519			    max_unmap_blk_cnt != 0x00L) {
3520				softc->unmap_max_lba = max_unmap_lba_cnt;
3521				softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3522					UNMAP_MAX_RANGES);
3523			} else {
3524				/*
3525				 * Unexpected UNMAP limits which means the
3526				 * device doesn't actually support UNMAP
3527				 */
3528				dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3529			}
3530
3531			if (ws_max_blks != 0x00L)
3532				softc->ws_max_blks = ws_max_blks;
3533		} else {
3534			int error;
3535			error = daerror(done_ccb, CAM_RETRY_SELTO,
3536					SF_RETRY_UA|SF_NO_PRINT);
3537			if (error == ERESTART)
3538				return;
3539			else if (error != 0) {
3540				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3541					/* Don't wedge this device's queue */
3542					cam_release_devq(done_ccb->ccb_h.path,
3543							 /*relsim_flags*/0,
3544							 /*reduction*/0,
3545							 /*timeout*/0,
3546							 /*getcount_only*/0);
3547				}
3548
3549				/*
3550				 * Failure here doesn't mean UNMAP is not
3551				 * supported as this is an optional page.
3552				 */
3553				softc->unmap_max_lba = 1;
3554				softc->unmap_max_ranges = 1;
3555			}
3556		}
3557
3558		free(block_limits, M_SCSIDA);
3559		xpt_release_ccb(done_ccb);
3560		softc->state = DA_STATE_PROBE_BDC;
3561		xpt_schedule(periph, priority);
3562		return;
3563	}
3564	case DA_CCB_PROBE_BDC:
3565	{
3566		struct scsi_vpd_block_characteristics *bdc;
3567
3568		bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3569
3570		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3571			/*
3572			 * Disable queue sorting for non-rotational media
3573			 * by default.
3574			 */
3575			u_int16_t old_rate = softc->disk->d_rotation_rate;
3576
3577			softc->disk->d_rotation_rate =
3578				scsi_2btoul(bdc->medium_rotation_rate);
3579			if (softc->disk->d_rotation_rate ==
3580			    SVPD_BDC_RATE_NON_ROTATING) {
3581				softc->sort_io_queue = 0;
3582			}
3583			if (softc->disk->d_rotation_rate != old_rate) {
3584				disk_attr_changed(softc->disk,
3585				    "GEOM::rotation_rate", M_NOWAIT);
3586			}
3587		} else {
3588			int error;
3589			error = daerror(done_ccb, CAM_RETRY_SELTO,
3590					SF_RETRY_UA|SF_NO_PRINT);
3591			if (error == ERESTART)
3592				return;
3593			else if (error != 0) {
3594				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3595					/* Don't wedge this device's queue */
3596					cam_release_devq(done_ccb->ccb_h.path,
3597							 /*relsim_flags*/0,
3598							 /*reduction*/0,
3599							 /*timeout*/0,
3600							 /*getcount_only*/0);
3601				}
3602			}
3603		}
3604
3605		free(bdc, M_SCSIDA);
3606		xpt_release_ccb(done_ccb);
3607		softc->state = DA_STATE_PROBE_ATA;
3608		xpt_schedule(periph, priority);
3609		return;
3610	}
3611	case DA_CCB_PROBE_ATA:
3612	{
3613		int i;
3614		struct ata_params *ata_params;
3615		int16_t *ptr;
3616
3617		ata_params = (struct ata_params *)csio->data_ptr;
3618		ptr = (uint16_t *)ata_params;
3619
3620		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3621			uint16_t old_rate;
3622
3623			for (i = 0; i < sizeof(*ata_params) / 2; i++)
3624				ptr[i] = le16toh(ptr[i]);
3625			if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
3626			    (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3627				dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3628				if (ata_params->max_dsm_blocks != 0)
3629					softc->trim_max_ranges = min(
3630					  softc->trim_max_ranges,
3631					  ata_params->max_dsm_blocks *
3632					  ATA_DSM_BLK_RANGES);
3633			}
3634			/*
3635			 * Disable queue sorting for non-rotational media
3636			 * by default.
3637			 */
3638			old_rate = softc->disk->d_rotation_rate;
3639			softc->disk->d_rotation_rate =
3640			    ata_params->media_rotation_rate;
3641			if (softc->disk->d_rotation_rate ==
3642			    ATA_RATE_NON_ROTATING) {
3643				softc->sort_io_queue = 0;
3644			}
3645
3646			if (softc->disk->d_rotation_rate != old_rate) {
3647				disk_attr_changed(softc->disk,
3648				    "GEOM::rotation_rate", M_NOWAIT);
3649			}
3650		} else {
3651			int error;
3652			error = daerror(done_ccb, CAM_RETRY_SELTO,
3653					SF_RETRY_UA|SF_NO_PRINT);
3654			if (error == ERESTART)
3655				return;
3656			else if (error != 0) {
3657				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3658					/* Don't wedge this device's queue */
3659					cam_release_devq(done_ccb->ccb_h.path,
3660							 /*relsim_flags*/0,
3661							 /*reduction*/0,
3662							 /*timeout*/0,
3663							 /*getcount_only*/0);
3664				}
3665			}
3666		}
3667
3668		free(ata_params, M_SCSIDA);
3669		daprobedone(periph, done_ccb);
3670		return;
3671	}
3672	case DA_CCB_DUMP:
3673		/* No-op.  We're polling */
3674		return;
3675	case DA_CCB_TUR:
3676	{
3677		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3678
3679			if (daerror(done_ccb, CAM_RETRY_SELTO,
3680			    SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3681			    ERESTART)
3682				return;
3683			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3684				cam_release_devq(done_ccb->ccb_h.path,
3685						 /*relsim_flags*/0,
3686						 /*reduction*/0,
3687						 /*timeout*/0,
3688						 /*getcount_only*/0);
3689		}
3690		xpt_release_ccb(done_ccb);
3691		cam_periph_release_locked(periph);
3692		return;
3693	}
3694	default:
3695		break;
3696	}
3697	xpt_release_ccb(done_ccb);
3698}
3699
3700static void
3701dareprobe(struct cam_periph *periph)
3702{
3703	struct da_softc	  *softc;
3704	cam_status status;
3705
3706	softc = (struct da_softc *)periph->softc;
3707
3708	/* Probe in progress; don't interfere. */
3709	if (softc->state != DA_STATE_NORMAL)
3710		return;
3711
3712	status = cam_periph_acquire(periph);
3713	KASSERT(status == CAM_REQ_CMP,
3714	    ("dareprobe: cam_periph_acquire failed"));
3715
3716	softc->state = DA_STATE_PROBE_WP;
3717	xpt_schedule(periph, CAM_PRIORITY_DEV);
3718}
3719
3720static int
3721daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3722{
3723	struct da_softc	  *softc;
3724	struct cam_periph *periph;
3725	int error, error_code, sense_key, asc, ascq;
3726
3727	periph = xpt_path_periph(ccb->ccb_h.path);
3728	softc = (struct da_softc *)periph->softc;
3729
3730 	/*
3731	 * Automatically detect devices that do not support
3732 	 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3733 	 */
3734	error = 0;
3735	if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3736		error = cmd6workaround(ccb);
3737	} else if (scsi_extract_sense_ccb(ccb,
3738	    &error_code, &sense_key, &asc, &ascq)) {
3739		if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3740 			error = cmd6workaround(ccb);
3741		/*
3742		 * If the target replied with CAPACITY DATA HAS CHANGED UA,
3743		 * query the capacity and notify upper layers.
3744		 */
3745		else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3746		    asc == 0x2A && ascq == 0x09) {
3747			xpt_print(periph->path, "Capacity data has changed\n");
3748			softc->flags &= ~DA_FLAG_PROBED;
3749			dareprobe(periph);
3750			sense_flags |= SF_NO_PRINT;
3751		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3752		    asc == 0x28 && ascq == 0x00) {
3753			softc->flags &= ~DA_FLAG_PROBED;
3754			disk_media_changed(softc->disk, M_NOWAIT);
3755		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3756		    asc == 0x3F && ascq == 0x03) {
3757			xpt_print(periph->path, "INQUIRY data has changed\n");
3758			softc->flags &= ~DA_FLAG_PROBED;
3759			dareprobe(periph);
3760			sense_flags |= SF_NO_PRINT;
3761		} else if (sense_key == SSD_KEY_NOT_READY &&
3762		    asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
3763			softc->flags |= DA_FLAG_PACK_INVALID;
3764			disk_media_gone(softc->disk, M_NOWAIT);
3765		}
3766	}
3767	if (error == ERESTART)
3768		return (ERESTART);
3769
3770	/*
3771	 * XXX
3772	 * Until we have a better way of doing pack validation,
3773	 * don't treat UAs as errors.
3774	 */
3775	sense_flags |= SF_RETRY_UA;
3776
3777	if (softc->quirks & DA_Q_RETRY_BUSY)
3778		sense_flags |= SF_RETRY_BUSY;
3779	return(cam_periph_error(ccb, cam_flags, sense_flags,
3780				&softc->saved_ccb));
3781}
3782
3783static void
3784damediapoll(void *arg)
3785{
3786	struct cam_periph *periph = arg;
3787	struct da_softc *softc = periph->softc;
3788
3789	if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
3790		if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3791			softc->tur = 1;
3792			daschedule(periph);
3793		}
3794	}
3795	/* Queue us up again */
3796	if (da_poll_period != 0)
3797		callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3798}
3799
3800static void
3801daprevent(struct cam_periph *periph, int action)
3802{
3803	struct	da_softc *softc;
3804	union	ccb *ccb;
3805	int	error;
3806
3807	softc = (struct da_softc *)periph->softc;
3808
3809	if (((action == PR_ALLOW)
3810	  && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3811	 || ((action == PR_PREVENT)
3812	  && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3813		return;
3814	}
3815
3816	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3817
3818	scsi_prevent(&ccb->csio,
3819		     /*retries*/1,
3820		     /*cbcfp*/dadone,
3821		     MSG_SIMPLE_Q_TAG,
3822		     action,
3823		     SSD_FULL_SIZE,
3824		     5000);
3825
3826	error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3827	    SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
3828
3829	if (error == 0) {
3830		if (action == PR_ALLOW)
3831			softc->flags &= ~DA_FLAG_PACK_LOCKED;
3832		else
3833			softc->flags |= DA_FLAG_PACK_LOCKED;
3834	}
3835
3836	xpt_release_ccb(ccb);
3837}
3838
3839static void
3840dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3841	  struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3842{
3843	struct ccb_calc_geometry ccg;
3844	struct da_softc *softc;
3845	struct disk_params *dp;
3846	u_int lbppbe, lalba;
3847	int error;
3848
3849	softc = (struct da_softc *)periph->softc;
3850
3851	dp = &softc->params;
3852	dp->secsize = block_len;
3853	dp->sectors = maxsector + 1;
3854	if (rcaplong != NULL) {
3855		lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3856		lalba = scsi_2btoul(rcaplong->lalba_lbp);
3857		lalba &= SRC16_LALBA_A;
3858	} else {
3859		lbppbe = 0;
3860		lalba = 0;
3861	}
3862
3863	if (lbppbe > 0) {
3864		dp->stripesize = block_len << lbppbe;
3865		dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3866		    dp->stripesize;
3867	} else if (softc->quirks & DA_Q_4K) {
3868		dp->stripesize = 4096;
3869		dp->stripeoffset = 0;
3870	} else {
3871		dp->stripesize = 0;
3872		dp->stripeoffset = 0;
3873	}
3874	/*
3875	 * Have the controller provide us with a geometry
3876	 * for this disk.  The only time the geometry
3877	 * matters is when we boot and the controller
3878	 * is the only one knowledgeable enough to come
3879	 * up with something that will make this a bootable
3880	 * device.
3881	 */
3882	xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3883	ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3884	ccg.block_size = dp->secsize;
3885	ccg.volume_size = dp->sectors;
3886	ccg.heads = 0;
3887	ccg.secs_per_track = 0;
3888	ccg.cylinders = 0;
3889	xpt_action((union ccb*)&ccg);
3890	if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3891		/*
3892		 * We don't know what went wrong here- but just pick
3893		 * a geometry so we don't have nasty things like divide
3894		 * by zero.
3895		 */
3896		dp->heads = 255;
3897		dp->secs_per_track = 255;
3898		dp->cylinders = dp->sectors / (255 * 255);
3899		if (dp->cylinders == 0) {
3900			dp->cylinders = 1;
3901		}
3902	} else {
3903		dp->heads = ccg.heads;
3904		dp->secs_per_track = ccg.secs_per_track;
3905		dp->cylinders = ccg.cylinders;
3906	}
3907
3908	/*
3909	 * If the user supplied a read capacity buffer, and if it is
3910	 * different than the previous buffer, update the data in the EDT.
3911	 * If it's the same, we don't bother.  This avoids sending an
3912	 * update every time someone opens this device.
3913	 */
3914	if ((rcaplong != NULL)
3915	 && (bcmp(rcaplong, &softc->rcaplong,
3916		  min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3917		struct ccb_dev_advinfo cdai;
3918
3919		xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3920		cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3921		cdai.buftype = CDAI_TYPE_RCAPLONG;
3922		cdai.flags = CDAI_FLAG_STORE;
3923		cdai.bufsiz = rcap_len;
3924		cdai.buf = (uint8_t *)rcaplong;
3925		xpt_action((union ccb *)&cdai);
3926		if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3927			cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3928		if (cdai.ccb_h.status != CAM_REQ_CMP) {
3929			xpt_print(periph->path, "%s: failed to set read "
3930				  "capacity advinfo\n", __func__);
3931			/* Use cam_error_print() to decode the status */
3932			cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3933					CAM_EPF_ALL);
3934		} else {
3935			bcopy(rcaplong, &softc->rcaplong,
3936			      min(sizeof(softc->rcaplong), rcap_len));
3937		}
3938	}
3939
3940	softc->disk->d_sectorsize = softc->params.secsize;
3941	softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3942	softc->disk->d_stripesize = softc->params.stripesize;
3943	softc->disk->d_stripeoffset = softc->params.stripeoffset;
3944	/* XXX: these are not actually "firmware" values, so they may be wrong */
3945	softc->disk->d_fwsectors = softc->params.secs_per_track;
3946	softc->disk->d_fwheads = softc->params.heads;
3947	softc->disk->d_devstat->block_size = softc->params.secsize;
3948	softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3949
3950	error = disk_resize(softc->disk, M_NOWAIT);
3951	if (error != 0)
3952		xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
3953}
3954
3955static void
3956dasendorderedtag(void *arg)
3957{
3958	struct da_softc *softc = arg;
3959
3960	if (da_send_ordered) {
3961		if (!LIST_EMPTY(&softc->pending_ccbs)) {
3962			if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
3963				softc->flags |= DA_FLAG_NEED_OTAG;
3964			softc->flags &= ~DA_FLAG_WAS_OTAG;
3965		}
3966	}
3967	/* Queue us up again */
3968	callout_reset(&softc->sendordered_c,
3969	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3970	    dasendorderedtag, softc);
3971}
3972
3973/*
3974 * Step through all DA peripheral drivers, and if the device is still open,
3975 * sync the disk cache to physical media.
3976 */
3977static void
3978dashutdown(void * arg, int howto)
3979{
3980	struct cam_periph *periph;
3981	struct da_softc *softc;
3982	union ccb *ccb;
3983	int error;
3984
3985	CAM_PERIPH_FOREACH(periph, &dadriver) {
3986		softc = (struct da_softc *)periph->softc;
3987		if (SCHEDULER_STOPPED()) {
3988			/* If we paniced with the lock held, do not recurse. */
3989			if (!cam_periph_owned(periph) &&
3990			    (softc->flags & DA_FLAG_OPEN)) {
3991				dadump(softc->disk, NULL, 0, 0, 0);
3992			}
3993			continue;
3994		}
3995		cam_periph_lock(periph);
3996
3997		/*
3998		 * We only sync the cache if the drive is still open, and
3999		 * if the drive is capable of it..
4000		 */
4001		if (((softc->flags & DA_FLAG_OPEN) == 0)
4002		 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
4003			cam_periph_unlock(periph);
4004			continue;
4005		}
4006
4007		ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
4008		scsi_synchronize_cache(&ccb->csio,
4009				       /*retries*/0,
4010				       /*cbfcnp*/dadone,
4011				       MSG_SIMPLE_Q_TAG,
4012				       /*begin_lba*/0, /* whole disk */
4013				       /*lb_count*/0,
4014				       SSD_FULL_SIZE,
4015				       60 * 60 * 1000);
4016
4017		error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
4018		    /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
4019		    softc->disk->d_devstat);
4020		if (error != 0)
4021			xpt_print(periph->path, "Synchronize cache failed\n");
4022		xpt_release_ccb(ccb);
4023		cam_periph_unlock(periph);
4024	}
4025}
4026
4027#else /* !_KERNEL */
4028
4029/*
4030 * XXX These are only left out of the kernel build to silence warnings.  If,
4031 * for some reason these functions are used in the kernel, the ifdefs should
4032 * be moved so they are included both in the kernel and userland.
4033 */
4034void
4035scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
4036		 void (*cbfcnp)(struct cam_periph *, union ccb *),
4037		 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
4038		 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4039		 u_int32_t timeout)
4040{
4041	struct scsi_format_unit *scsi_cmd;
4042
4043	scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
4044	scsi_cmd->opcode = FORMAT_UNIT;
4045	scsi_cmd->byte2 = byte2;
4046	scsi_ulto2b(ileave, scsi_cmd->interleave);
4047
4048	cam_fill_csio(csio,
4049		      retries,
4050		      cbfcnp,
4051		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
4052		      tag_action,
4053		      data_ptr,
4054		      dxfer_len,
4055		      sense_len,
4056		      sizeof(*scsi_cmd),
4057		      timeout);
4058}
4059
4060void
4061scsi_read_defects(struct ccb_scsiio *csio, uint32_t retries,
4062		  void (*cbfcnp)(struct cam_periph *, union ccb *),
4063		  uint8_t tag_action, uint8_t list_format,
4064		  uint32_t addr_desc_index, uint8_t *data_ptr,
4065		  uint32_t dxfer_len, int minimum_cmd_size,
4066		  uint8_t sense_len, uint32_t timeout)
4067{
4068	uint8_t cdb_len;
4069
4070	/*
4071	 * These conditions allow using the 10 byte command.  Otherwise we
4072	 * need to use the 12 byte command.
4073	 */
4074	if ((minimum_cmd_size <= 10)
4075	 && (addr_desc_index == 0)
4076	 && (dxfer_len <= SRDD10_MAX_LENGTH)) {
4077		struct scsi_read_defect_data_10 *cdb10;
4078
4079		cdb10 = (struct scsi_read_defect_data_10 *)
4080			&csio->cdb_io.cdb_bytes;
4081
4082		cdb_len = sizeof(*cdb10);
4083		bzero(cdb10, cdb_len);
4084                cdb10->opcode = READ_DEFECT_DATA_10;
4085                cdb10->format = list_format;
4086                scsi_ulto2b(dxfer_len, cdb10->alloc_length);
4087	} else {
4088		struct scsi_read_defect_data_12 *cdb12;
4089
4090		cdb12 = (struct scsi_read_defect_data_12 *)
4091			&csio->cdb_io.cdb_bytes;
4092
4093		cdb_len = sizeof(*cdb12);
4094		bzero(cdb12, cdb_len);
4095                cdb12->opcode = READ_DEFECT_DATA_12;
4096                cdb12->format = list_format;
4097                scsi_ulto4b(dxfer_len, cdb12->alloc_length);
4098		scsi_ulto4b(addr_desc_index, cdb12->address_descriptor_index);
4099	}
4100
4101	cam_fill_csio(csio,
4102		      retries,
4103		      cbfcnp,
4104		      /*flags*/ CAM_DIR_IN,
4105		      tag_action,
4106		      data_ptr,
4107		      dxfer_len,
4108		      sense_len,
4109		      cdb_len,
4110		      timeout);
4111}
4112
4113void
4114scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
4115	      void (*cbfcnp)(struct cam_periph *, union ccb *),
4116	      u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
4117	      u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4118	      u_int32_t timeout)
4119{
4120	struct scsi_sanitize *scsi_cmd;
4121
4122	scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
4123	scsi_cmd->opcode = SANITIZE;
4124	scsi_cmd->byte2 = byte2;
4125	scsi_cmd->control = control;
4126	scsi_ulto2b(dxfer_len, scsi_cmd->length);
4127
4128	cam_fill_csio(csio,
4129		      retries,
4130		      cbfcnp,
4131		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
4132		      tag_action,
4133		      data_ptr,
4134		      dxfer_len,
4135		      sense_len,
4136		      sizeof(*scsi_cmd),
4137		      timeout);
4138}
4139
4140#endif /* _KERNEL */
4141