scsi_da.c revision 292348
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 292348 2015-12-16 19:01:14Z ken $");
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_RC,
73	DA_STATE_PROBE_RC16,
74	DA_STATE_PROBE_LBP,
75	DA_STATE_PROBE_BLK_LIMITS,
76	DA_STATE_PROBE_BDC,
77	DA_STATE_PROBE_ATA,
78	DA_STATE_NORMAL
79} da_state;
80
81typedef enum {
82	DA_FLAG_PACK_INVALID	= 0x001,
83	DA_FLAG_NEW_PACK	= 0x002,
84	DA_FLAG_PACK_LOCKED	= 0x004,
85	DA_FLAG_PACK_REMOVABLE	= 0x008,
86	DA_FLAG_NEED_OTAG	= 0x020,
87	DA_FLAG_WAS_OTAG	= 0x040,
88	DA_FLAG_RETRY_UA	= 0x080,
89	DA_FLAG_OPEN		= 0x100,
90	DA_FLAG_SCTX_INIT	= 0x200,
91	DA_FLAG_CAN_RC16	= 0x400,
92	DA_FLAG_PROBED		= 0x800,
93	DA_FLAG_DIRTY		= 0x1000,
94	DA_FLAG_ANNOUNCED	= 0x2000
95} da_flags;
96
97typedef enum {
98	DA_Q_NONE		= 0x00,
99	DA_Q_NO_SYNC_CACHE	= 0x01,
100	DA_Q_NO_6_BYTE		= 0x02,
101	DA_Q_NO_PREVENT		= 0x04,
102	DA_Q_4K			= 0x08,
103	DA_Q_NO_RC16		= 0x10,
104	DA_Q_NO_UNMAP		= 0x20,
105	DA_Q_RETRY_BUSY		= 0x40
106} da_quirks;
107
108#define DA_Q_BIT_STRING		\
109	"\020"			\
110	"\001NO_SYNC_CACHE"	\
111	"\002NO_6_BYTE"		\
112	"\003NO_PREVENT"	\
113	"\0044K"		\
114	"\005NO_RC16"		\
115	"\006NO_UNMAP"		\
116	"\007RETRY_BUSY"
117
118typedef enum {
119	DA_CCB_PROBE_RC		= 0x01,
120	DA_CCB_PROBE_RC16	= 0x02,
121	DA_CCB_PROBE_LBP	= 0x03,
122	DA_CCB_PROBE_BLK_LIMITS	= 0x04,
123	DA_CCB_PROBE_BDC	= 0x05,
124	DA_CCB_PROBE_ATA	= 0x06,
125	DA_CCB_BUFFER_IO	= 0x07,
126	DA_CCB_DUMP		= 0x0A,
127	DA_CCB_DELETE		= 0x0B,
128 	DA_CCB_TUR		= 0x0C,
129	DA_CCB_TYPE_MASK	= 0x0F,
130	DA_CCB_RETRY_UA		= 0x10
131} da_ccb_state;
132
133/*
134 * Order here is important for method choice
135 *
136 * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
137 * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
138 * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
139 * import taking 5mins.
140 *
141 */
142typedef enum {
143	DA_DELETE_NONE,
144	DA_DELETE_DISABLE,
145	DA_DELETE_ATA_TRIM,
146	DA_DELETE_UNMAP,
147	DA_DELETE_WS16,
148	DA_DELETE_WS10,
149	DA_DELETE_ZERO,
150	DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
151	DA_DELETE_MAX = DA_DELETE_ZERO
152} da_delete_methods;
153
154typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
155			      struct bio *bp);
156static da_delete_func_t da_delete_trim;
157static da_delete_func_t da_delete_unmap;
158static da_delete_func_t da_delete_ws;
159
160static const void * da_delete_functions[] = {
161	NULL,
162	NULL,
163	da_delete_trim,
164	da_delete_unmap,
165	da_delete_ws,
166	da_delete_ws,
167	da_delete_ws
168};
169
170static const char *da_delete_method_names[] =
171    { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
172static const char *da_delete_method_desc[] =
173    { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
174      "WRITE SAME(10) with UNMAP", "ZERO" };
175
176/* Offsets into our private area for storing information */
177#define ccb_state	ppriv_field0
178#define ccb_bp		ppriv_ptr1
179
180struct disk_params {
181	u_int8_t  heads;
182	u_int32_t cylinders;
183	u_int8_t  secs_per_track;
184	u_int32_t secsize;	/* Number of bytes/sector */
185	u_int64_t sectors;	/* total number sectors */
186	u_int     stripesize;
187	u_int     stripeoffset;
188};
189
190#define UNMAP_RANGE_MAX		0xffffffff
191#define UNMAP_HEAD_SIZE		8
192#define UNMAP_RANGE_SIZE	16
193#define UNMAP_MAX_RANGES	2048 /* Protocol Max is 4095 */
194#define UNMAP_BUF_SIZE		((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
195				UNMAP_HEAD_SIZE)
196
197#define WS10_MAX_BLKS		0xffff
198#define WS16_MAX_BLKS		0xffffffff
199#define ATA_TRIM_MAX_RANGES	((UNMAP_BUF_SIZE / \
200	(ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
201
202struct da_softc {
203	struct	 bio_queue_head bio_queue;
204	struct	 bio_queue_head delete_queue;
205	struct	 bio_queue_head delete_run_queue;
206	LIST_HEAD(, ccb_hdr) pending_ccbs;
207	int	 tur;			/* TEST UNIT READY should be sent */
208	int	 refcount;		/* Active xpt_action() calls */
209	da_state state;
210	da_flags flags;
211	da_quirks quirks;
212	int	 sort_io_queue;
213	int	 minimum_cmd_size;
214	int	 error_inject;
215	int	 trim_max_ranges;
216	int	 delete_running;
217	int	 delete_available;	/* Delete methods possibly available */
218	u_int	 maxio;
219	uint32_t		unmap_max_ranges;
220	uint32_t		unmap_max_lba; /* Max LBAs in UNMAP req */
221	uint64_t		ws_max_blks;
222	da_delete_methods	delete_method_pref;
223	da_delete_methods	delete_method;
224	da_delete_func_t	*delete_func;
225	struct	 disk_params params;
226	struct	 disk *disk;
227	union	 ccb saved_ccb;
228	struct task		sysctl_task;
229	struct sysctl_ctx_list	sysctl_ctx;
230	struct sysctl_oid	*sysctl_tree;
231	struct callout		sendordered_c;
232	uint64_t wwpn;
233	uint8_t	 unmap_buf[UNMAP_BUF_SIZE];
234	struct scsi_read_capacity_data_long rcaplong;
235	struct callout		mediapoll_c;
236};
237
238#define dadeleteflag(softc, delete_method, enable)			\
239	if (enable) {							\
240		softc->delete_available |= (1 << delete_method);	\
241	} else {							\
242		softc->delete_available &= ~(1 << delete_method);	\
243	}
244
245struct da_quirk_entry {
246	struct scsi_inquiry_pattern inq_pat;
247	da_quirks quirks;
248};
249
250static const char quantum[] = "QUANTUM";
251static const char microp[] = "MICROP";
252
253static struct da_quirk_entry da_quirk_table[] =
254{
255	/* SPI, FC devices */
256	{
257		/*
258		 * Fujitsu M2513A MO drives.
259		 * Tested devices: M2513A2 firmware versions 1200 & 1300.
260		 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
261		 * Reported by: W.Scholten <whs@xs4all.nl>
262		 */
263		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
264		/*quirks*/ DA_Q_NO_SYNC_CACHE
265	},
266	{
267		/* See above. */
268		{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
269		/*quirks*/ DA_Q_NO_SYNC_CACHE
270	},
271	{
272		/*
273		 * This particular Fujitsu drive doesn't like the
274		 * synchronize cache command.
275		 * Reported by: Tom Jackson <toj@gorilla.net>
276		 */
277		{T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
278		/*quirks*/ DA_Q_NO_SYNC_CACHE
279	},
280	{
281		/*
282		 * This drive doesn't like the synchronize cache command
283		 * either.  Reported by: Matthew Jacob <mjacob@feral.com>
284		 * in NetBSD PR kern/6027, August 24, 1998.
285		 */
286		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
287		/*quirks*/ DA_Q_NO_SYNC_CACHE
288	},
289	{
290		/*
291		 * This drive doesn't like the synchronize cache command
292		 * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
293		 * (PR 8882).
294		 */
295		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
296		/*quirks*/ DA_Q_NO_SYNC_CACHE
297	},
298	{
299		/*
300		 * Doesn't like the synchronize cache command.
301		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
302		 */
303		{T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
304		/*quirks*/ DA_Q_NO_SYNC_CACHE
305	},
306	{
307		/*
308		 * Doesn't like the synchronize cache command.
309		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
310		 */
311		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
312		/*quirks*/ DA_Q_NO_SYNC_CACHE
313	},
314	{
315		/*
316		 * Doesn't like the synchronize cache command.
317		 */
318		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
319		/*quirks*/ DA_Q_NO_SYNC_CACHE
320	},
321	{
322		/*
323		 * Doesn't like the synchronize cache command.
324		 * Reported by: walter@pelissero.de
325		 */
326		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
327		/*quirks*/ DA_Q_NO_SYNC_CACHE
328	},
329	{
330		/*
331		 * Doesn't work correctly with 6 byte reads/writes.
332		 * Returns illegal request, and points to byte 9 of the
333		 * 6-byte CDB.
334		 * Reported by:  Adam McDougall <bsdx@spawnet.com>
335		 */
336		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
337		/*quirks*/ DA_Q_NO_6_BYTE
338	},
339	{
340		/* See above. */
341		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
342		/*quirks*/ DA_Q_NO_6_BYTE
343	},
344	{
345		/*
346		 * Doesn't like the synchronize cache command.
347		 * Reported by: walter@pelissero.de
348		 */
349		{T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
350		/*quirks*/ DA_Q_NO_SYNC_CACHE
351	},
352	{
353		/*
354		 * The CISS RAID controllers do not support SYNC_CACHE
355		 */
356		{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
357		/*quirks*/ DA_Q_NO_SYNC_CACHE
358	},
359	{
360		/*
361		 * The STEC SSDs sometimes hang on UNMAP.
362		 */
363		{T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
364		/*quirks*/ DA_Q_NO_UNMAP
365	},
366	{
367		/*
368		 * VMware returns BUSY status when storage has transient
369		 * connectivity problems, so better wait.
370		 */
371		{T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*"},
372		/*quirks*/ DA_Q_RETRY_BUSY
373	},
374	/* USB mass storage devices supported by umass(4) */
375	{
376		/*
377		 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
378		 * PR: kern/51675
379		 */
380		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
381		/*quirks*/ DA_Q_NO_SYNC_CACHE
382	},
383	{
384		/*
385		 * Power Quotient Int. (PQI) USB flash key
386		 * PR: kern/53067
387		 */
388		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
389		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
390	},
391 	{
392 		/*
393 		 * Creative Nomad MUVO mp3 player (USB)
394 		 * PR: kern/53094
395 		 */
396 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
397 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
398 	},
399	{
400		/*
401		 * Jungsoft NEXDISK USB flash key
402		 * PR: kern/54737
403		 */
404		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
405		/*quirks*/ DA_Q_NO_SYNC_CACHE
406	},
407	{
408		/*
409		 * FreeDik USB Mini Data Drive
410		 * PR: kern/54786
411		 */
412		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
413		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
414	},
415	{
416		/*
417		 * Sigmatel USB Flash MP3 Player
418		 * PR: kern/57046
419		 */
420		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
421		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
422	},
423	{
424		/*
425		 * Neuros USB Digital Audio Computer
426		 * PR: kern/63645
427		 */
428		{T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
429		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
430	},
431	{
432		/*
433		 * SEAGRAND NP-900 MP3 Player
434		 * PR: kern/64563
435		 */
436		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
437		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
438	},
439	{
440		/*
441		 * iRiver iFP MP3 player (with UMS Firmware)
442		 * PR: kern/54881, i386/63941, kern/66124
443		 */
444		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
445		/*quirks*/ DA_Q_NO_SYNC_CACHE
446 	},
447	{
448		/*
449		 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
450		 * PR: kern/70158
451		 */
452		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
453		/*quirks*/ DA_Q_NO_SYNC_CACHE
454	},
455	{
456		/*
457		 * ZICPlay USB MP3 Player with FM
458		 * PR: kern/75057
459		 */
460		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
461		/*quirks*/ DA_Q_NO_SYNC_CACHE
462	},
463	{
464		/*
465		 * TEAC USB floppy mechanisms
466		 */
467		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
468		/*quirks*/ DA_Q_NO_SYNC_CACHE
469	},
470	{
471		/*
472		 * Kingston DataTraveler II+ USB Pen-Drive.
473		 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
474		 */
475		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
476		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
477	},
478	{
479		/*
480		 * USB DISK Pro PMAP
481		 * Reported by: jhs
482		 * PR: usb/96381
483		 */
484		{T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
485		/*quirks*/ DA_Q_NO_SYNC_CACHE
486	},
487	{
488		/*
489		 * Motorola E398 Mobile Phone (TransFlash memory card).
490		 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
491		 * PR: usb/89889
492		 */
493		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
494		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
495	},
496	{
497		/*
498		 * Qware BeatZkey! Pro
499		 * PR: usb/79164
500		 */
501		{T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
502		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
503	},
504	{
505		/*
506		 * Time DPA20B 1GB MP3 Player
507		 * PR: usb/81846
508		 */
509		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
510		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
511	},
512	{
513		/*
514		 * Samsung USB key 128Mb
515		 * PR: usb/90081
516		 */
517		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
518		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
519	},
520	{
521		/*
522		 * Kingston DataTraveler 2.0 USB Flash memory.
523		 * PR: usb/89196
524		 */
525		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
526		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
527	},
528	{
529		/*
530		 * Creative MUVO Slim mp3 player (USB)
531		 * PR: usb/86131
532		 */
533		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
534		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
535		},
536	{
537		/*
538		 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
539		 * PR: usb/80487
540		 */
541		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
542		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
543	},
544	{
545		/*
546		 * SanDisk Micro Cruzer 128MB
547		 * PR: usb/75970
548		 */
549		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
550		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
551	},
552	{
553		/*
554		 * TOSHIBA TransMemory USB sticks
555		 * PR: kern/94660
556		 */
557		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
558		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
559	},
560	{
561		/*
562		 * PNY USB 3.0 Flash Drives
563		*/
564		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
565		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
566	},
567	{
568		/*
569		 * PNY USB Flash keys
570		 * PR: usb/75578, usb/72344, usb/65436
571		 */
572		{T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
573		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
574	},
575	{
576		/*
577		 * Genesys 6-in-1 Card Reader
578		 * PR: usb/94647
579		 */
580		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
581		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
582	},
583	{
584		/*
585		 * Rekam Digital CAMERA
586		 * PR: usb/98713
587		 */
588		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
589		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
590	},
591	{
592		/*
593		 * iRiver H10 MP3 player
594		 * PR: usb/102547
595		 */
596		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
597		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
598	},
599	{
600		/*
601		 * iRiver U10 MP3 player
602		 * PR: usb/92306
603		 */
604		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
605		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
606	},
607	{
608		/*
609		 * X-Micro Flash Disk
610		 * PR: usb/96901
611		 */
612		{T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
613		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
614	},
615	{
616		/*
617		 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
618		 * PR: usb/96546
619		 */
620		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
621		"1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
622	},
623	{
624		/*
625		 * Denver MP3 player
626		 * PR: usb/107101
627		 */
628		{T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
629		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
630	},
631	{
632		/*
633		 * Philips USB Key Audio KEY013
634		 * PR: usb/68412
635		 */
636		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
637		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
638	},
639	{
640		/*
641		 * JNC MP3 Player
642		 * PR: usb/94439
643		 */
644		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
645		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
646	},
647	{
648		/*
649		 * SAMSUNG MP0402H
650		 * PR: usb/108427
651		 */
652		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
653		/*quirks*/ DA_Q_NO_SYNC_CACHE
654	},
655	{
656		/*
657		 * I/O Magic USB flash - Giga Bank
658		 * PR: usb/108810
659		 */
660		{T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
661		/*quirks*/ DA_Q_NO_SYNC_CACHE
662	},
663	{
664		/*
665		 * JoyFly 128mb USB Flash Drive
666		 * PR: 96133
667		 */
668		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
669		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
670	},
671	{
672		/*
673		 * ChipsBnk usb stick
674		 * PR: 103702
675		 */
676		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
677		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
678	},
679	{
680		/*
681		 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
682		 * PR: 129858
683		 */
684		{T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
685		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
686	},
687	{
688		/*
689		 * Samsung YP-U3 mp3-player
690		 * PR: 125398
691		 */
692		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
693		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
694	},
695	{
696		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
697		 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
698	},
699	{
700		/*
701		 * Sony Cyber-Shot DSC cameras
702		 * PR: usb/137035
703		 */
704		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
705		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
706	},
707	{
708		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
709		 "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
710	},
711	{
712		/* At least several Transcent USB sticks lie on RC16. */
713		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
714		 "*"}, /*quirks*/ DA_Q_NO_RC16
715	},
716	/* ATA/SATA devices over SAS/USB/... */
717	{
718		/* Hitachi Advanced Format (4k) drives */
719		{ T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
720		/*quirks*/DA_Q_4K
721	},
722	{
723		/* Samsung Advanced Format (4k) drives */
724		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
725		/*quirks*/DA_Q_4K
726	},
727	{
728		/* Samsung Advanced Format (4k) drives */
729		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
730		/*quirks*/DA_Q_4K
731	},
732	{
733		/* Samsung Advanced Format (4k) drives */
734		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
735		/*quirks*/DA_Q_4K
736	},
737	{
738		/* Samsung Advanced Format (4k) drives */
739		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
740		/*quirks*/DA_Q_4K
741	},
742	{
743		/* Seagate Barracuda Green Advanced Format (4k) drives */
744		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
745		/*quirks*/DA_Q_4K
746	},
747	{
748		/* Seagate Barracuda Green Advanced Format (4k) drives */
749		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
750		/*quirks*/DA_Q_4K
751	},
752	{
753		/* Seagate Barracuda Green Advanced Format (4k) drives */
754		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
755		/*quirks*/DA_Q_4K
756	},
757	{
758		/* Seagate Barracuda Green Advanced Format (4k) drives */
759		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
760		/*quirks*/DA_Q_4K
761	},
762	{
763		/* Seagate Barracuda Green Advanced Format (4k) drives */
764		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
765		/*quirks*/DA_Q_4K
766	},
767	{
768		/* Seagate Barracuda Green Advanced Format (4k) drives */
769		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
770		/*quirks*/DA_Q_4K
771	},
772	{
773		/* Seagate Momentus Advanced Format (4k) drives */
774		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
775		/*quirks*/DA_Q_4K
776	},
777	{
778		/* Seagate Momentus Advanced Format (4k) drives */
779		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
780		/*quirks*/DA_Q_4K
781	},
782	{
783		/* Seagate Momentus Advanced Format (4k) drives */
784		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
785		/*quirks*/DA_Q_4K
786	},
787	{
788		/* Seagate Momentus Advanced Format (4k) drives */
789		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
790		/*quirks*/DA_Q_4K
791	},
792	{
793		/* Seagate Momentus Advanced Format (4k) drives */
794		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
795		/*quirks*/DA_Q_4K
796	},
797	{
798		/* Seagate Momentus Advanced Format (4k) drives */
799		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
800		/*quirks*/DA_Q_4K
801	},
802	{
803		/* Seagate Momentus Advanced Format (4k) drives */
804		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
805		/*quirks*/DA_Q_4K
806	},
807	{
808		/* Seagate Momentus Advanced Format (4k) drives */
809		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
810		/*quirks*/DA_Q_4K
811	},
812	{
813		/* Seagate Momentus Advanced Format (4k) drives */
814		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
815		/*quirks*/DA_Q_4K
816	},
817	{
818		/* Seagate Momentus Advanced Format (4k) drives */
819		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
820		/*quirks*/DA_Q_4K
821	},
822	{
823		/* Seagate Momentus Advanced Format (4k) drives */
824		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
825		/*quirks*/DA_Q_4K
826	},
827	{
828		/* Seagate Momentus Advanced Format (4k) drives */
829		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
830		/*quirks*/DA_Q_4K
831	},
832	{
833		/* Seagate Momentus Advanced Format (4k) drives */
834		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
835		/*quirks*/DA_Q_4K
836	},
837	{
838		/* Seagate Momentus Advanced Format (4k) drives */
839		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
840		/*quirks*/DA_Q_4K
841	},
842	{
843		/* Seagate Momentus Thin Advanced Format (4k) drives */
844		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
845		/*quirks*/DA_Q_4K
846	},
847	{
848		/* Seagate Momentus Thin Advanced Format (4k) drives */
849		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
850		/*quirks*/DA_Q_4K
851	},
852	{
853		/* WDC Caviar Green Advanced Format (4k) drives */
854		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
855		/*quirks*/DA_Q_4K
856	},
857	{
858		/* WDC Caviar Green Advanced Format (4k) drives */
859		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
860		/*quirks*/DA_Q_4K
861	},
862	{
863		/* WDC Caviar Green Advanced Format (4k) drives */
864		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
865		/*quirks*/DA_Q_4K
866	},
867	{
868		/* WDC Caviar Green Advanced Format (4k) drives */
869		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
870		/*quirks*/DA_Q_4K
871	},
872	{
873		/* WDC Caviar Green Advanced Format (4k) drives */
874		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
875		/*quirks*/DA_Q_4K
876	},
877	{
878		/* WDC Caviar Green Advanced Format (4k) drives */
879		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
880		/*quirks*/DA_Q_4K
881	},
882	{
883		/* WDC Caviar Green Advanced Format (4k) drives */
884		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
885		/*quirks*/DA_Q_4K
886	},
887	{
888		/* WDC Caviar Green Advanced Format (4k) drives */
889		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
890		/*quirks*/DA_Q_4K
891	},
892	{
893		/* WDC Scorpio Black Advanced Format (4k) drives */
894		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
895		/*quirks*/DA_Q_4K
896	},
897	{
898		/* WDC Scorpio Black Advanced Format (4k) drives */
899		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
900		/*quirks*/DA_Q_4K
901	},
902	{
903		/* WDC Scorpio Black Advanced Format (4k) drives */
904		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
905		/*quirks*/DA_Q_4K
906	},
907	{
908		/* WDC Scorpio Black Advanced Format (4k) drives */
909		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
910		/*quirks*/DA_Q_4K
911	},
912	{
913		/* WDC Scorpio Blue Advanced Format (4k) drives */
914		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
915		/*quirks*/DA_Q_4K
916	},
917	{
918		/* WDC Scorpio Blue Advanced Format (4k) drives */
919		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
920		/*quirks*/DA_Q_4K
921	},
922	{
923		/* WDC Scorpio Blue Advanced Format (4k) drives */
924		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
925		/*quirks*/DA_Q_4K
926	},
927	{
928		/* WDC Scorpio Blue Advanced Format (4k) drives */
929		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
930		/*quirks*/DA_Q_4K
931	},
932	{
933		/*
934		 * Olympus FE-210 camera
935		 */
936		{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
937		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
938	},
939	{
940		/*
941		 * LG UP3S MP3 player
942		 */
943		{T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
944		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
945	},
946	{
947		/*
948		 * Laser MP3-2GA13 MP3 player
949		 */
950		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
951		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
952	},
953	{
954		/*
955		 * LaCie external 250GB Hard drive des by Porsche
956		 * Submitted by: Ben Stuyts <ben@altesco.nl>
957		 * PR: 121474
958		 */
959		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
960		/*quirks*/ DA_Q_NO_SYNC_CACHE
961	},
962	/* SATA SSDs */
963	{
964		/*
965		 * Corsair Force 2 SSDs
966		 * 4k optimised & trim only works in 4k requests + 4k aligned
967		 */
968		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
969		/*quirks*/DA_Q_4K
970	},
971	{
972		/*
973		 * Corsair Force 3 SSDs
974		 * 4k optimised & trim only works in 4k requests + 4k aligned
975		 */
976		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
977		/*quirks*/DA_Q_4K
978	},
979        {
980		/*
981		 * Corsair Neutron GTX SSDs
982		 * 4k optimised & trim only works in 4k requests + 4k aligned
983		 */
984		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
985		/*quirks*/DA_Q_4K
986	},
987	{
988		/*
989		 * Corsair Force GT & GS SSDs
990		 * 4k optimised & trim only works in 4k requests + 4k aligned
991		 */
992		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
993		/*quirks*/DA_Q_4K
994	},
995	{
996		/*
997		 * Crucial M4 SSDs
998		 * 4k optimised & trim only works in 4k requests + 4k aligned
999		 */
1000		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
1001		/*quirks*/DA_Q_4K
1002	},
1003	{
1004		/*
1005		 * Crucial RealSSD C300 SSDs
1006		 * 4k optimised
1007		 */
1008		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
1009		"*" }, /*quirks*/DA_Q_4K
1010	},
1011	{
1012		/*
1013		 * Intel 320 Series SSDs
1014		 * 4k optimised & trim only works in 4k requests + 4k aligned
1015		 */
1016		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1017		/*quirks*/DA_Q_4K
1018	},
1019	{
1020		/*
1021		 * Intel 330 Series SSDs
1022		 * 4k optimised & trim only works in 4k requests + 4k aligned
1023		 */
1024		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1025		/*quirks*/DA_Q_4K
1026	},
1027	{
1028		/*
1029		 * Intel 510 Series SSDs
1030		 * 4k optimised & trim only works in 4k requests + 4k aligned
1031		 */
1032		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1033		/*quirks*/DA_Q_4K
1034	},
1035	{
1036		/*
1037		 * Intel 520 Series SSDs
1038		 * 4k optimised & trim only works in 4k requests + 4k aligned
1039		 */
1040		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1041		/*quirks*/DA_Q_4K
1042	},
1043	{
1044		/*
1045		 * Intel X25-M Series SSDs
1046		 * 4k optimised & trim only works in 4k requests + 4k aligned
1047		 */
1048		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1049		/*quirks*/DA_Q_4K
1050	},
1051	{
1052		/*
1053		 * Kingston E100 Series SSDs
1054		 * 4k optimised & trim only works in 4k requests + 4k aligned
1055		 */
1056		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1057		/*quirks*/DA_Q_4K
1058	},
1059	{
1060		/*
1061		 * Kingston HyperX 3k SSDs
1062		 * 4k optimised & trim only works in 4k requests + 4k aligned
1063		 */
1064		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1065		/*quirks*/DA_Q_4K
1066	},
1067	{
1068		/*
1069		 * Marvell SSDs (entry taken from OpenSolaris)
1070		 * 4k optimised & trim only works in 4k requests + 4k aligned
1071		 */
1072		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1073		/*quirks*/DA_Q_4K
1074	},
1075	{
1076		/*
1077		 * OCZ Agility 2 SSDs
1078		 * 4k optimised & trim only works in 4k requests + 4k aligned
1079		 */
1080		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1081		/*quirks*/DA_Q_4K
1082	},
1083	{
1084		/*
1085		 * OCZ Agility 3 SSDs
1086		 * 4k optimised & trim only works in 4k requests + 4k aligned
1087		 */
1088		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1089		/*quirks*/DA_Q_4K
1090	},
1091	{
1092		/*
1093		 * OCZ Deneva R Series SSDs
1094		 * 4k optimised & trim only works in 4k requests + 4k aligned
1095		 */
1096		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1097		/*quirks*/DA_Q_4K
1098	},
1099	{
1100		/*
1101		 * OCZ Vertex 2 SSDs (inc pro series)
1102		 * 4k optimised & trim only works in 4k requests + 4k aligned
1103		 */
1104		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1105		/*quirks*/DA_Q_4K
1106	},
1107	{
1108		/*
1109		 * OCZ Vertex 3 SSDs
1110		 * 4k optimised & trim only works in 4k requests + 4k aligned
1111		 */
1112		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1113		/*quirks*/DA_Q_4K
1114	},
1115	{
1116		/*
1117		 * OCZ Vertex 4 SSDs
1118		 * 4k optimised & trim only works in 4k requests + 4k aligned
1119		 */
1120		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1121		/*quirks*/DA_Q_4K
1122	},
1123	{
1124		/*
1125		 * Samsung 830 Series SSDs
1126		 * 4k optimised & trim only works in 4k requests + 4k aligned
1127		 */
1128		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1129		/*quirks*/DA_Q_4K
1130	},
1131	{
1132		/*
1133		 * Samsung 840 SSDs
1134		 * 4k optimised & trim only works in 4k requests + 4k aligned
1135		 */
1136		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1137		/*quirks*/DA_Q_4K
1138	},
1139	{
1140		/*
1141		 * Samsung 843T Series SSDs
1142		 * 4k optimised
1143		 */
1144		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7WD*", "*" },
1145		/*quirks*/DA_Q_4K
1146	},
1147 	{
1148 		/*
1149		 * Samsung 850 SSDs
1150		 * 4k optimised & trim only works in 4k requests + 4k aligned
1151		 */
1152		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
1153		/*quirks*/DA_Q_4K
1154	},
1155	{
1156		/*
1157		 * Samsung PM853T Series SSDs
1158		 * 4k optimised
1159		 */
1160		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7GE*", "*" },
1161		/*quirks*/DA_Q_4K
1162	},
1163	{
1164		/*
1165		 * SuperTalent TeraDrive CT SSDs
1166		 * 4k optimised & trim only works in 4k requests + 4k aligned
1167		 */
1168		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1169		/*quirks*/DA_Q_4K
1170	},
1171	{
1172		/*
1173		 * XceedIOPS SATA SSDs
1174		 * 4k optimised
1175		 */
1176		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1177		/*quirks*/DA_Q_4K
1178	},
1179	{
1180		/*
1181		 * Hama Innostor USB-Stick
1182		 */
1183		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "Innostor", "Innostor*", "*" },
1184		/*quirks*/DA_Q_NO_RC16
1185	},
1186	{
1187		/*
1188		 * MX-ES USB Drive by Mach Xtreme
1189		 */
1190		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "MX", "MXUB3*", "*"},
1191		/*quirks*/DA_Q_NO_RC16
1192	},
1193};
1194
1195static	disk_strategy_t	dastrategy;
1196static	dumper_t	dadump;
1197static	periph_init_t	dainit;
1198static	void		daasync(void *callback_arg, u_int32_t code,
1199				struct cam_path *path, void *arg);
1200static	void		dasysctlinit(void *context, int pending);
1201static	int		dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1202static	int		dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1203static	int		dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1204static	void		dadeletemethodset(struct da_softc *softc,
1205					  da_delete_methods delete_method);
1206static	off_t		dadeletemaxsize(struct da_softc *softc,
1207					da_delete_methods delete_method);
1208static	void		dadeletemethodchoose(struct da_softc *softc,
1209					     da_delete_methods default_method);
1210static	void		daprobedone(struct cam_periph *periph, union ccb *ccb);
1211
1212static	periph_ctor_t	daregister;
1213static	periph_dtor_t	dacleanup;
1214static	periph_start_t	dastart;
1215static	periph_oninv_t	daoninvalidate;
1216static	void		dadone(struct cam_periph *periph,
1217			       union ccb *done_ccb);
1218static  int		daerror(union ccb *ccb, u_int32_t cam_flags,
1219				u_int32_t sense_flags);
1220static void		daprevent(struct cam_periph *periph, int action);
1221static void		dareprobe(struct cam_periph *periph);
1222static void		dasetgeom(struct cam_periph *periph, uint32_t block_len,
1223				  uint64_t maxsector,
1224				  struct scsi_read_capacity_data_long *rcaplong,
1225				  size_t rcap_size);
1226static timeout_t	dasendorderedtag;
1227static void		dashutdown(void *arg, int howto);
1228static timeout_t	damediapoll;
1229
1230#ifndef	DA_DEFAULT_POLL_PERIOD
1231#define	DA_DEFAULT_POLL_PERIOD	3
1232#endif
1233
1234#ifndef DA_DEFAULT_TIMEOUT
1235#define DA_DEFAULT_TIMEOUT 60	/* Timeout in seconds */
1236#endif
1237
1238#ifndef	DA_DEFAULT_RETRY
1239#define	DA_DEFAULT_RETRY	4
1240#endif
1241
1242#ifndef	DA_DEFAULT_SEND_ORDERED
1243#define	DA_DEFAULT_SEND_ORDERED	1
1244#endif
1245
1246#define DA_SIO (softc->sort_io_queue >= 0 ? \
1247    softc->sort_io_queue : cam_sort_io_queues)
1248
1249static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1250static int da_retry_count = DA_DEFAULT_RETRY;
1251static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1252static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1253
1254static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1255            "CAM Direct Access Disk driver");
1256SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
1257           &da_poll_period, 0, "Media polling period in seconds");
1258TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
1259SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
1260           &da_retry_count, 0, "Normal I/O retry count");
1261TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
1262SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
1263           &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1264TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
1265SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
1266           &da_send_ordered, 0, "Send Ordered Tags");
1267TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
1268
1269/*
1270 * DA_ORDEREDTAG_INTERVAL determines how often, relative
1271 * to the default timeout, we check to see whether an ordered
1272 * tagged transaction is appropriate to prevent simple tag
1273 * starvation.  Since we'd like to ensure that there is at least
1274 * 1/2 of the timeout length left for a starved transaction to
1275 * complete after we've sent an ordered tag, we must poll at least
1276 * four times in every timeout period.  This takes care of the worst
1277 * case where a starved transaction starts during an interval that
1278 * meets the requirement "don't send an ordered tag" test so it takes
1279 * us two intervals to determine that a tag must be sent.
1280 */
1281#ifndef DA_ORDEREDTAG_INTERVAL
1282#define DA_ORDEREDTAG_INTERVAL 4
1283#endif
1284
1285static struct periph_driver dadriver =
1286{
1287	dainit, "da",
1288	TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1289};
1290
1291PERIPHDRIVER_DECLARE(da, dadriver);
1292
1293static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1294
1295static int
1296daopen(struct disk *dp)
1297{
1298	struct cam_periph *periph;
1299	struct da_softc *softc;
1300	int error;
1301
1302	periph = (struct cam_periph *)dp->d_drv1;
1303	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1304		return (ENXIO);
1305	}
1306
1307	cam_periph_lock(periph);
1308	if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1309		cam_periph_unlock(periph);
1310		cam_periph_release(periph);
1311		return (error);
1312	}
1313
1314	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1315	    ("daopen\n"));
1316
1317	softc = (struct da_softc *)periph->softc;
1318	dareprobe(periph);
1319
1320	/* Wait for the disk size update.  */
1321	error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1322	    "dareprobe", 0);
1323	if (error != 0)
1324		xpt_print(periph->path, "unable to retrieve capacity data\n");
1325
1326	if (periph->flags & CAM_PERIPH_INVALID)
1327		error = ENXIO;
1328
1329	if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1330	    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1331		daprevent(periph, PR_PREVENT);
1332
1333	if (error == 0) {
1334		softc->flags &= ~DA_FLAG_PACK_INVALID;
1335		softc->flags |= DA_FLAG_OPEN;
1336	}
1337
1338	cam_periph_unhold(periph);
1339	cam_periph_unlock(periph);
1340
1341	if (error != 0)
1342		cam_periph_release(periph);
1343
1344	return (error);
1345}
1346
1347static int
1348daclose(struct disk *dp)
1349{
1350	struct	cam_periph *periph;
1351	struct	da_softc *softc;
1352	union	ccb *ccb;
1353	int error;
1354
1355	periph = (struct cam_periph *)dp->d_drv1;
1356	softc = (struct da_softc *)periph->softc;
1357	cam_periph_lock(periph);
1358	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1359	    ("daclose\n"));
1360
1361	if (cam_periph_hold(periph, PRIBIO) == 0) {
1362
1363		/* Flush disk cache. */
1364		if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1365		    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1366		    (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1367			ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1368			scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1369			    /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1370			    /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1371			    5 * 60 * 1000);
1372			error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1373			    /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1374			    softc->disk->d_devstat);
1375			if (error == 0)
1376				softc->flags &= ~DA_FLAG_DIRTY;
1377			xpt_release_ccb(ccb);
1378		}
1379
1380		/* Allow medium removal. */
1381		if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1382		    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1383			daprevent(periph, PR_ALLOW);
1384
1385		cam_periph_unhold(periph);
1386	}
1387
1388	/*
1389	 * If we've got removeable media, mark the blocksize as
1390	 * unavailable, since it could change when new media is
1391	 * inserted.
1392	 */
1393	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1394		softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1395
1396	softc->flags &= ~DA_FLAG_OPEN;
1397	while (softc->refcount != 0)
1398		cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1399	cam_periph_unlock(periph);
1400	cam_periph_release(periph);
1401	return (0);
1402}
1403
1404static void
1405daschedule(struct cam_periph *periph)
1406{
1407	struct da_softc *softc = (struct da_softc *)periph->softc;
1408
1409	if (softc->state != DA_STATE_NORMAL)
1410		return;
1411
1412	/* Check if we have more work to do. */
1413	if (bioq_first(&softc->bio_queue) ||
1414	    (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1415	    softc->tur) {
1416		xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1417	}
1418}
1419
1420/*
1421 * Actually translate the requested transfer into one the physical driver
1422 * can understand.  The transfer is described by a buf and will include
1423 * only one physical transfer.
1424 */
1425static void
1426dastrategy(struct bio *bp)
1427{
1428	struct cam_periph *periph;
1429	struct da_softc *softc;
1430
1431	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1432	softc = (struct da_softc *)periph->softc;
1433
1434	cam_periph_lock(periph);
1435
1436	/*
1437	 * If the device has been made invalid, error out
1438	 */
1439	if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1440		cam_periph_unlock(periph);
1441		biofinish(bp, NULL, ENXIO);
1442		return;
1443	}
1444
1445	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1446
1447	/*
1448	 * Place it in the queue of disk activities for this disk
1449	 */
1450	if (bp->bio_cmd == BIO_DELETE) {
1451		bioq_disksort(&softc->delete_queue, bp);
1452	} else if (DA_SIO) {
1453		bioq_disksort(&softc->bio_queue, bp);
1454	} else {
1455		bioq_insert_tail(&softc->bio_queue, bp);
1456	}
1457
1458	/*
1459	 * Schedule ourselves for performing the work.
1460	 */
1461	daschedule(periph);
1462	cam_periph_unlock(periph);
1463
1464	return;
1465}
1466
1467static int
1468dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1469{
1470	struct	    cam_periph *periph;
1471	struct	    da_softc *softc;
1472	u_int	    secsize;
1473	struct	    ccb_scsiio csio;
1474	struct	    disk *dp;
1475	int	    error = 0;
1476
1477	dp = arg;
1478	periph = dp->d_drv1;
1479	softc = (struct da_softc *)periph->softc;
1480	cam_periph_lock(periph);
1481	secsize = softc->params.secsize;
1482
1483	if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1484		cam_periph_unlock(periph);
1485		return (ENXIO);
1486	}
1487
1488	if (length > 0) {
1489		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1490		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1491		scsi_read_write(&csio,
1492				/*retries*/0,
1493				dadone,
1494				MSG_ORDERED_Q_TAG,
1495				/*read*/SCSI_RW_WRITE,
1496				/*byte2*/0,
1497				/*minimum_cmd_size*/ softc->minimum_cmd_size,
1498				offset / secsize,
1499				length / secsize,
1500				/*data_ptr*/(u_int8_t *) virtual,
1501				/*dxfer_len*/length,
1502				/*sense_len*/SSD_FULL_SIZE,
1503				da_default_timeout * 1000);
1504		xpt_polled_action((union ccb *)&csio);
1505
1506		error = cam_periph_error((union ccb *)&csio,
1507		    0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1508		if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1509			cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1510			    /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1511		if (error != 0)
1512			printf("Aborting dump due to I/O error.\n");
1513		cam_periph_unlock(periph);
1514		return (error);
1515	}
1516
1517	/*
1518	 * Sync the disk cache contents to the physical media.
1519	 */
1520	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1521
1522		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1523		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1524		scsi_synchronize_cache(&csio,
1525				       /*retries*/0,
1526				       /*cbfcnp*/dadone,
1527				       MSG_SIMPLE_Q_TAG,
1528				       /*begin_lba*/0,/* Cover the whole disk */
1529				       /*lb_count*/0,
1530				       SSD_FULL_SIZE,
1531				       5 * 60 * 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 | SF_QUIET_IR, 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			xpt_print(periph->path, "Synchronize cache failed\n");
1541	}
1542	cam_periph_unlock(periph);
1543	return (error);
1544}
1545
1546static int
1547dagetattr(struct bio *bp)
1548{
1549	int ret;
1550	struct cam_periph *periph;
1551
1552	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1553	cam_periph_lock(periph);
1554	ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1555	    periph->path);
1556	cam_periph_unlock(periph);
1557	if (ret == 0)
1558		bp->bio_completed = bp->bio_length;
1559	return ret;
1560}
1561
1562static void
1563dainit(void)
1564{
1565	cam_status status;
1566
1567	/*
1568	 * Install a global async callback.  This callback will
1569	 * receive async callbacks like "new device found".
1570	 */
1571	status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1572
1573	if (status != CAM_REQ_CMP) {
1574		printf("da: Failed to attach master async callback "
1575		       "due to status 0x%x!\n", status);
1576	} else if (da_send_ordered) {
1577
1578		/* Register our shutdown event handler */
1579		if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1580					   NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1581		    printf("dainit: shutdown event registration failed!\n");
1582	}
1583}
1584
1585/*
1586 * Callback from GEOM, called when it has finished cleaning up its
1587 * resources.
1588 */
1589static void
1590dadiskgonecb(struct disk *dp)
1591{
1592	struct cam_periph *periph;
1593
1594	periph = (struct cam_periph *)dp->d_drv1;
1595	cam_periph_release(periph);
1596}
1597
1598static void
1599daoninvalidate(struct cam_periph *periph)
1600{
1601	struct da_softc *softc;
1602
1603	softc = (struct da_softc *)periph->softc;
1604
1605	/*
1606	 * De-register any async callbacks.
1607	 */
1608	xpt_register_async(0, daasync, periph, periph->path);
1609
1610	softc->flags |= DA_FLAG_PACK_INVALID;
1611
1612	/*
1613	 * Return all queued I/O with ENXIO.
1614	 * XXX Handle any transactions queued to the card
1615	 *     with XPT_ABORT_CCB.
1616	 */
1617	bioq_flush(&softc->bio_queue, NULL, ENXIO);
1618	bioq_flush(&softc->delete_queue, NULL, ENXIO);
1619
1620	/*
1621	 * Tell GEOM that we've gone away, we'll get a callback when it is
1622	 * done cleaning up its resources.
1623	 */
1624	disk_gone(softc->disk);
1625}
1626
1627static void
1628dacleanup(struct cam_periph *periph)
1629{
1630	struct da_softc *softc;
1631
1632	softc = (struct da_softc *)periph->softc;
1633
1634	cam_periph_unlock(periph);
1635
1636	/*
1637	 * If we can't free the sysctl tree, oh well...
1638	 */
1639	if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1640	    && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1641		xpt_print(periph->path, "can't remove sysctl context\n");
1642	}
1643
1644	callout_drain(&softc->mediapoll_c);
1645	disk_destroy(softc->disk);
1646	callout_drain(&softc->sendordered_c);
1647	free(softc, M_DEVBUF);
1648	cam_periph_lock(periph);
1649}
1650
1651static void
1652daasync(void *callback_arg, u_int32_t code,
1653	struct cam_path *path, void *arg)
1654{
1655	struct cam_periph *periph;
1656	struct da_softc *softc;
1657
1658	periph = (struct cam_periph *)callback_arg;
1659	switch (code) {
1660	case AC_FOUND_DEVICE:
1661	{
1662		struct ccb_getdev *cgd;
1663		cam_status status;
1664
1665		cgd = (struct ccb_getdev *)arg;
1666		if (cgd == NULL)
1667			break;
1668
1669		if (cgd->protocol != PROTO_SCSI)
1670			break;
1671		if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
1672			break;
1673		if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1674		    && SID_TYPE(&cgd->inq_data) != T_RBC
1675		    && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1676			break;
1677
1678		/*
1679		 * Allocate a peripheral instance for
1680		 * this device and start the probe
1681		 * process.
1682		 */
1683		status = cam_periph_alloc(daregister, daoninvalidate,
1684					  dacleanup, dastart,
1685					  "da", CAM_PERIPH_BIO,
1686					  path, daasync,
1687					  AC_FOUND_DEVICE, cgd);
1688
1689		if (status != CAM_REQ_CMP
1690		 && status != CAM_REQ_INPROG)
1691			printf("daasync: Unable to attach to new device "
1692				"due to status 0x%x\n", status);
1693		return;
1694	}
1695	case AC_ADVINFO_CHANGED:
1696	{
1697		uintptr_t buftype;
1698
1699		buftype = (uintptr_t)arg;
1700		if (buftype == CDAI_TYPE_PHYS_PATH) {
1701			struct da_softc *softc;
1702
1703			softc = periph->softc;
1704			disk_attr_changed(softc->disk, "GEOM::physpath",
1705					  M_NOWAIT);
1706		}
1707		break;
1708	}
1709	case AC_UNIT_ATTENTION:
1710	{
1711		union ccb *ccb;
1712		int error_code, sense_key, asc, ascq;
1713
1714		softc = (struct da_softc *)periph->softc;
1715		ccb = (union ccb *)arg;
1716
1717		/*
1718		 * Handle all UNIT ATTENTIONs except our own,
1719		 * as they will be handled by daerror().
1720		 */
1721		if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1722		    scsi_extract_sense_ccb(ccb,
1723		     &error_code, &sense_key, &asc, &ascq)) {
1724			if (asc == 0x2A && ascq == 0x09) {
1725				xpt_print(ccb->ccb_h.path,
1726				    "Capacity data has changed\n");
1727				softc->flags &= ~DA_FLAG_PROBED;
1728				dareprobe(periph);
1729			} else if (asc == 0x28 && ascq == 0x00) {
1730				softc->flags &= ~DA_FLAG_PROBED;
1731				disk_media_changed(softc->disk, M_NOWAIT);
1732			} else if (asc == 0x3F && ascq == 0x03) {
1733				xpt_print(ccb->ccb_h.path,
1734				    "INQUIRY data has changed\n");
1735				softc->flags &= ~DA_FLAG_PROBED;
1736				dareprobe(periph);
1737			}
1738		}
1739		cam_periph_async(periph, code, path, arg);
1740		break;
1741	}
1742	case AC_SCSI_AEN:
1743		softc = (struct da_softc *)periph->softc;
1744		if (!softc->tur) {
1745			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1746				softc->tur = 1;
1747				daschedule(periph);
1748			}
1749		}
1750		/* FALLTHROUGH */
1751	case AC_SENT_BDR:
1752	case AC_BUS_RESET:
1753	{
1754		struct ccb_hdr *ccbh;
1755
1756		softc = (struct da_softc *)periph->softc;
1757		/*
1758		 * Don't fail on the expected unit attention
1759		 * that will occur.
1760		 */
1761		softc->flags |= DA_FLAG_RETRY_UA;
1762		LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1763			ccbh->ccb_state |= DA_CCB_RETRY_UA;
1764		break;
1765	}
1766	default:
1767		break;
1768	}
1769	cam_periph_async(periph, code, path, arg);
1770}
1771
1772static void
1773dasysctlinit(void *context, int pending)
1774{
1775	struct cam_periph *periph;
1776	struct da_softc *softc;
1777	char tmpstr[80], tmpstr2[80];
1778	struct ccb_trans_settings cts;
1779
1780	periph = (struct cam_periph *)context;
1781	/*
1782	 * periph was held for us when this task was enqueued
1783	 */
1784	if (periph->flags & CAM_PERIPH_INVALID) {
1785		cam_periph_release(periph);
1786		return;
1787	}
1788
1789	softc = (struct da_softc *)periph->softc;
1790	snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1791	snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1792
1793	sysctl_ctx_init(&softc->sysctl_ctx);
1794	softc->flags |= DA_FLAG_SCTX_INIT;
1795	softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1796		SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1797		CTLFLAG_RD, 0, tmpstr);
1798	if (softc->sysctl_tree == NULL) {
1799		printf("dasysctlinit: unable to allocate sysctl tree\n");
1800		cam_periph_release(periph);
1801		return;
1802	}
1803
1804	/*
1805	 * Now register the sysctl handler, so the user can change the value on
1806	 * the fly.
1807	 */
1808	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1809		OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RWTUN,
1810		softc, 0, dadeletemethodsysctl, "A",
1811		"BIO_DELETE execution method");
1812	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1813		OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1814		softc, 0, dadeletemaxsysctl, "Q",
1815		"Maximum BIO_DELETE size");
1816	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1817		OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1818		&softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1819		"Minimum CDB size");
1820	SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1821		OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1822		"Sort IO queue to try and optimise disk access patterns");
1823
1824	SYSCTL_ADD_INT(&softc->sysctl_ctx,
1825		       SYSCTL_CHILDREN(softc->sysctl_tree),
1826		       OID_AUTO,
1827		       "error_inject",
1828		       CTLFLAG_RW,
1829		       &softc->error_inject,
1830		       0,
1831		       "error_inject leaf");
1832
1833
1834	/*
1835	 * Add some addressing info.
1836	 */
1837	memset(&cts, 0, sizeof (cts));
1838	xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1839	cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1840	cts.type = CTS_TYPE_CURRENT_SETTINGS;
1841	cam_periph_lock(periph);
1842	xpt_action((union ccb *)&cts);
1843	cam_periph_unlock(periph);
1844	if (cts.ccb_h.status != CAM_REQ_CMP) {
1845		cam_periph_release(periph);
1846		return;
1847	}
1848	if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1849		struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1850		if (fc->valid & CTS_FC_VALID_WWPN) {
1851			softc->wwpn = fc->wwpn;
1852			SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1853			    SYSCTL_CHILDREN(softc->sysctl_tree),
1854			    OID_AUTO, "wwpn", CTLFLAG_RD,
1855			    &softc->wwpn, "World Wide Port Name");
1856		}
1857	}
1858	cam_periph_release(periph);
1859}
1860
1861static int
1862dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1863{
1864	int error;
1865	uint64_t value;
1866	struct da_softc *softc;
1867
1868	softc = (struct da_softc *)arg1;
1869
1870	value = softc->disk->d_delmaxsize;
1871	error = sysctl_handle_64(oidp, &value, 0, req);
1872	if ((error != 0) || (req->newptr == NULL))
1873		return (error);
1874
1875	/* only accept values smaller than the calculated value */
1876	if (value > dadeletemaxsize(softc, softc->delete_method)) {
1877		return (EINVAL);
1878	}
1879	softc->disk->d_delmaxsize = value;
1880
1881	return (0);
1882}
1883
1884static int
1885dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1886{
1887	int error, value;
1888
1889	value = *(int *)arg1;
1890
1891	error = sysctl_handle_int(oidp, &value, 0, req);
1892
1893	if ((error != 0)
1894	 || (req->newptr == NULL))
1895		return (error);
1896
1897	/*
1898	 * Acceptable values here are 6, 10, 12 or 16.
1899	 */
1900	if (value < 6)
1901		value = 6;
1902	else if ((value > 6)
1903	      && (value <= 10))
1904		value = 10;
1905	else if ((value > 10)
1906	      && (value <= 12))
1907		value = 12;
1908	else if (value > 12)
1909		value = 16;
1910
1911	*(int *)arg1 = value;
1912
1913	return (0);
1914}
1915
1916static void
1917dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1918{
1919
1920	softc->delete_method = delete_method;
1921	softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1922	softc->delete_func = da_delete_functions[delete_method];
1923
1924	if (softc->delete_method > DA_DELETE_DISABLE)
1925		softc->disk->d_flags |= DISKFLAG_CANDELETE;
1926	else
1927		softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1928}
1929
1930static off_t
1931dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1932{
1933	off_t sectors;
1934
1935	switch(delete_method) {
1936	case DA_DELETE_UNMAP:
1937		sectors = (off_t)softc->unmap_max_lba;
1938		break;
1939	case DA_DELETE_ATA_TRIM:
1940		sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1941		break;
1942	case DA_DELETE_WS16:
1943		sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
1944		break;
1945	case DA_DELETE_ZERO:
1946	case DA_DELETE_WS10:
1947		sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
1948		break;
1949	default:
1950		return 0;
1951	}
1952
1953	return (off_t)softc->params.secsize *
1954	    omin(sectors, softc->params.sectors);
1955}
1956
1957static void
1958daprobedone(struct cam_periph *periph, union ccb *ccb)
1959{
1960	struct da_softc *softc;
1961
1962	softc = (struct da_softc *)periph->softc;
1963
1964	dadeletemethodchoose(softc, DA_DELETE_NONE);
1965
1966	if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1967		char buf[80];
1968		int i, sep;
1969
1970		snprintf(buf, sizeof(buf), "Delete methods: <");
1971		sep = 0;
1972		for (i = 0; i <= DA_DELETE_MAX; i++) {
1973			if ((softc->delete_available & (1 << i)) == 0 &&
1974			    i != softc->delete_method)
1975				continue;
1976			if (sep)
1977				strlcat(buf, ",", sizeof(buf));
1978			strlcat(buf, da_delete_method_names[i],
1979			    sizeof(buf));
1980			if (i == softc->delete_method)
1981				strlcat(buf, "(*)", sizeof(buf));
1982			sep = 1;
1983		}
1984		strlcat(buf, ">", sizeof(buf));
1985		printf("%s%d: %s\n", periph->periph_name,
1986		    periph->unit_number, buf);
1987	}
1988
1989	/*
1990	 * Since our peripheral may be invalidated by an error
1991	 * above or an external event, we must release our CCB
1992	 * before releasing the probe lock on the peripheral.
1993	 * The peripheral will only go away once the last lock
1994	 * is removed, and we need it around for the CCB release
1995	 * operation.
1996	 */
1997	xpt_release_ccb(ccb);
1998	softc->state = DA_STATE_NORMAL;
1999	softc->flags |= DA_FLAG_PROBED;
2000	daschedule(periph);
2001	wakeup(&softc->disk->d_mediasize);
2002	if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
2003		softc->flags |= DA_FLAG_ANNOUNCED;
2004		cam_periph_unhold(periph);
2005	} else
2006		cam_periph_release_locked(periph);
2007}
2008
2009static void
2010dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
2011{
2012	int i, methods;
2013
2014	/* If available, prefer the method requested by user. */
2015	i = softc->delete_method_pref;
2016	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2017	if (methods & (1 << i)) {
2018		dadeletemethodset(softc, i);
2019		return;
2020	}
2021
2022	/* Use the pre-defined order to choose the best performing delete. */
2023	for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
2024		if (i == DA_DELETE_ZERO)
2025			continue;
2026		if (softc->delete_available & (1 << i)) {
2027			dadeletemethodset(softc, i);
2028			return;
2029		}
2030	}
2031
2032	/* Fallback to default. */
2033	dadeletemethodset(softc, default_method);
2034}
2035
2036static int
2037dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
2038{
2039	char buf[16];
2040	const char *p;
2041	struct da_softc *softc;
2042	int i, error, methods, value;
2043
2044	softc = (struct da_softc *)arg1;
2045
2046	value = softc->delete_method;
2047	if (value < 0 || value > DA_DELETE_MAX)
2048		p = "UNKNOWN";
2049	else
2050		p = da_delete_method_names[value];
2051	strncpy(buf, p, sizeof(buf));
2052	error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2053	if (error != 0 || req->newptr == NULL)
2054		return (error);
2055	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2056	for (i = 0; i <= DA_DELETE_MAX; i++) {
2057		if (strcmp(buf, da_delete_method_names[i]) == 0)
2058			break;
2059	}
2060	if (i > DA_DELETE_MAX)
2061		return (EINVAL);
2062	softc->delete_method_pref = i;
2063	dadeletemethodchoose(softc, DA_DELETE_NONE);
2064	return (0);
2065}
2066
2067static cam_status
2068daregister(struct cam_periph *periph, void *arg)
2069{
2070	struct da_softc *softc;
2071	struct ccb_pathinq cpi;
2072	struct ccb_getdev *cgd;
2073	char tmpstr[80];
2074	caddr_t match;
2075
2076	cgd = (struct ccb_getdev *)arg;
2077	if (cgd == NULL) {
2078		printf("daregister: no getdev CCB, can't register device\n");
2079		return(CAM_REQ_CMP_ERR);
2080	}
2081
2082	softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2083	    M_NOWAIT|M_ZERO);
2084
2085	if (softc == NULL) {
2086		printf("daregister: Unable to probe new device. "
2087		       "Unable to allocate softc\n");
2088		return(CAM_REQ_CMP_ERR);
2089	}
2090
2091	LIST_INIT(&softc->pending_ccbs);
2092	softc->state = DA_STATE_PROBE_RC;
2093	bioq_init(&softc->bio_queue);
2094	bioq_init(&softc->delete_queue);
2095	bioq_init(&softc->delete_run_queue);
2096	if (SID_IS_REMOVABLE(&cgd->inq_data))
2097		softc->flags |= DA_FLAG_PACK_REMOVABLE;
2098	softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2099	softc->unmap_max_lba = UNMAP_RANGE_MAX;
2100	softc->ws_max_blks = WS16_MAX_BLKS;
2101	softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2102	softc->sort_io_queue = -1;
2103
2104	periph->softc = softc;
2105
2106	/*
2107	 * See if this device has any quirks.
2108	 */
2109	match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2110			       (caddr_t)da_quirk_table,
2111			       sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2112			       sizeof(*da_quirk_table), scsi_inquiry_match);
2113
2114	if (match != NULL)
2115		softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2116	else
2117		softc->quirks = DA_Q_NONE;
2118
2119	/* Check if the SIM does not want 6 byte commands */
2120	bzero(&cpi, sizeof(cpi));
2121	xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2122	cpi.ccb_h.func_code = XPT_PATH_INQ;
2123	xpt_action((union ccb *)&cpi);
2124	if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2125		softc->quirks |= DA_Q_NO_6_BYTE;
2126
2127	TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2128
2129	/*
2130	 * Take an exclusive refcount on the periph while dastart is called
2131	 * to finish the probe.  The reference will be dropped in dadone at
2132	 * the end of probe.
2133	 */
2134	(void)cam_periph_hold(periph, PRIBIO);
2135
2136	/*
2137	 * Schedule a periodic event to occasionally send an
2138	 * ordered tag to a device.
2139	 */
2140	callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2141	callout_reset(&softc->sendordered_c,
2142	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2143	    dasendorderedtag, softc);
2144
2145	cam_periph_unlock(periph);
2146	/*
2147	 * RBC devices don't have to support READ(6), only READ(10).
2148	 */
2149	if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2150		softc->minimum_cmd_size = 10;
2151	else
2152		softc->minimum_cmd_size = 6;
2153
2154	/*
2155	 * Load the user's default, if any.
2156	 */
2157	snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2158		 periph->unit_number);
2159	TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2160
2161	/*
2162	 * 6, 10, 12 and 16 are the currently permissible values.
2163	 */
2164	if (softc->minimum_cmd_size < 6)
2165		softc->minimum_cmd_size = 6;
2166	else if ((softc->minimum_cmd_size > 6)
2167	      && (softc->minimum_cmd_size <= 10))
2168		softc->minimum_cmd_size = 10;
2169	else if ((softc->minimum_cmd_size > 10)
2170	      && (softc->minimum_cmd_size <= 12))
2171		softc->minimum_cmd_size = 12;
2172	else if (softc->minimum_cmd_size > 12)
2173		softc->minimum_cmd_size = 16;
2174
2175	/* Predict whether device may support READ CAPACITY(16). */
2176	if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2177	    (softc->quirks & DA_Q_NO_RC16) == 0) {
2178		softc->flags |= DA_FLAG_CAN_RC16;
2179		softc->state = DA_STATE_PROBE_RC16;
2180	}
2181
2182	/*
2183	 * Register this media as a disk.
2184	 */
2185	softc->disk = disk_alloc();
2186	softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2187			  periph->unit_number, 0,
2188			  DEVSTAT_BS_UNAVAILABLE,
2189			  SID_TYPE(&cgd->inq_data) |
2190			  XPORT_DEVSTAT_TYPE(cpi.transport),
2191			  DEVSTAT_PRIORITY_DISK);
2192	softc->disk->d_open = daopen;
2193	softc->disk->d_close = daclose;
2194	softc->disk->d_strategy = dastrategy;
2195	softc->disk->d_dump = dadump;
2196	softc->disk->d_getattr = dagetattr;
2197	softc->disk->d_gone = dadiskgonecb;
2198	softc->disk->d_name = "da";
2199	softc->disk->d_drv1 = periph;
2200	if (cpi.maxio == 0)
2201		softc->maxio = DFLTPHYS;	/* traditional default */
2202	else if (cpi.maxio > MAXPHYS)
2203		softc->maxio = MAXPHYS;		/* for safety */
2204	else
2205		softc->maxio = cpi.maxio;
2206	softc->disk->d_maxsize = softc->maxio;
2207	softc->disk->d_unit = periph->unit_number;
2208	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
2209	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2210		softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2211	if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2212		softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2213	cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2214	    sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2215	strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2216	cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2217	    cgd->inq_data.product, sizeof(cgd->inq_data.product),
2218	    sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2219	softc->disk->d_hba_vendor = cpi.hba_vendor;
2220	softc->disk->d_hba_device = cpi.hba_device;
2221	softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2222	softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2223
2224	/*
2225	 * Acquire a reference to the periph before we register with GEOM.
2226	 * We'll release this reference once GEOM calls us back (via
2227	 * dadiskgonecb()) telling us that our provider has been freed.
2228	 */
2229	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2230		xpt_print(periph->path, "%s: lost periph during "
2231			  "registration!\n", __func__);
2232		cam_periph_lock(periph);
2233		return (CAM_REQ_CMP_ERR);
2234	}
2235
2236	disk_create(softc->disk, DISK_VERSION);
2237	cam_periph_lock(periph);
2238
2239	/*
2240	 * Add async callbacks for events of interest.
2241	 * I don't bother checking if this fails as,
2242	 * in most cases, the system will function just
2243	 * fine without them and the only alternative
2244	 * would be to not attach the device on failure.
2245	 */
2246	xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2247	    AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
2248	    daasync, periph, periph->path);
2249
2250	/*
2251	 * Emit an attribute changed notification just in case
2252	 * physical path information arrived before our async
2253	 * event handler was registered, but after anyone attaching
2254	 * to our disk device polled it.
2255	 */
2256	disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2257
2258	/*
2259	 * Schedule a periodic media polling events.
2260	 */
2261	callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2262	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2263	    (cgd->inq_flags & SID_AEN) == 0 &&
2264	    da_poll_period != 0)
2265		callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2266		    damediapoll, periph);
2267
2268	xpt_schedule(periph, CAM_PRIORITY_DEV);
2269
2270	return(CAM_REQ_CMP);
2271}
2272
2273static void
2274dastart(struct cam_periph *periph, union ccb *start_ccb)
2275{
2276	struct da_softc *softc;
2277
2278	softc = (struct da_softc *)periph->softc;
2279
2280	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2281
2282skipstate:
2283	switch (softc->state) {
2284	case DA_STATE_NORMAL:
2285	{
2286		struct bio *bp;
2287		uint8_t tag_code;
2288
2289		/* Run BIO_DELETE if not running yet. */
2290		if (!softc->delete_running &&
2291		    (bp = bioq_first(&softc->delete_queue)) != NULL) {
2292			if (softc->delete_func != NULL) {
2293				softc->delete_func(periph, start_ccb, bp);
2294				goto out;
2295			} else {
2296				bioq_flush(&softc->delete_queue, NULL, 0);
2297				/* FALLTHROUGH */
2298			}
2299		}
2300
2301		/* Run regular command. */
2302		bp = bioq_takefirst(&softc->bio_queue);
2303		if (bp == NULL) {
2304			if (softc->tur) {
2305				softc->tur = 0;
2306				scsi_test_unit_ready(&start_ccb->csio,
2307				     /*retries*/ da_retry_count,
2308				     dadone,
2309				     MSG_SIMPLE_Q_TAG,
2310				     SSD_FULL_SIZE,
2311				     da_default_timeout * 1000);
2312				start_ccb->ccb_h.ccb_bp = NULL;
2313				start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2314				xpt_action(start_ccb);
2315			} else
2316				xpt_release_ccb(start_ccb);
2317			break;
2318		}
2319		if (softc->tur) {
2320			softc->tur = 0;
2321			cam_periph_release_locked(periph);
2322		}
2323
2324		if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2325		    (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2326			softc->flags &= ~DA_FLAG_NEED_OTAG;
2327			softc->flags |= DA_FLAG_WAS_OTAG;
2328			tag_code = MSG_ORDERED_Q_TAG;
2329		} else {
2330			tag_code = MSG_SIMPLE_Q_TAG;
2331		}
2332
2333		switch (bp->bio_cmd) {
2334		case BIO_WRITE:
2335		case BIO_READ:
2336		{
2337			void *data_ptr;
2338			int rw_op;
2339
2340			if (bp->bio_cmd == BIO_WRITE) {
2341				softc->flags |= DA_FLAG_DIRTY;
2342				rw_op = SCSI_RW_WRITE;
2343			} else {
2344				rw_op = SCSI_RW_READ;
2345			}
2346
2347			data_ptr = bp->bio_data;
2348			if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) {
2349				rw_op |= SCSI_RW_BIO;
2350				data_ptr = bp;
2351			}
2352
2353			scsi_read_write(&start_ccb->csio,
2354					/*retries*/da_retry_count,
2355					/*cbfcnp*/dadone,
2356					/*tag_action*/tag_code,
2357					rw_op,
2358					/*byte2*/0,
2359					softc->minimum_cmd_size,
2360					/*lba*/bp->bio_pblkno,
2361					/*block_count*/bp->bio_bcount /
2362					softc->params.secsize,
2363					data_ptr,
2364					/*dxfer_len*/ bp->bio_bcount,
2365					/*sense_len*/SSD_FULL_SIZE,
2366					da_default_timeout * 1000);
2367			break;
2368		}
2369		case BIO_FLUSH:
2370			/*
2371			 * BIO_FLUSH doesn't currently communicate
2372			 * range data, so we synchronize the cache
2373			 * over the whole disk.  We also force
2374			 * ordered tag semantics the flush applies
2375			 * to all previously queued I/O.
2376			 */
2377			scsi_synchronize_cache(&start_ccb->csio,
2378					       /*retries*/1,
2379					       /*cbfcnp*/dadone,
2380					       MSG_ORDERED_Q_TAG,
2381					       /*begin_lba*/0,
2382					       /*lb_count*/0,
2383					       SSD_FULL_SIZE,
2384					       da_default_timeout*1000);
2385			break;
2386		}
2387		start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2388		start_ccb->ccb_h.flags |= CAM_UNLOCKED;
2389
2390out:
2391		LIST_INSERT_HEAD(&softc->pending_ccbs,
2392				 &start_ccb->ccb_h, periph_links.le);
2393
2394		/* We expect a unit attention from this device */
2395		if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2396			start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2397			softc->flags &= ~DA_FLAG_RETRY_UA;
2398		}
2399
2400		start_ccb->ccb_h.ccb_bp = bp;
2401		softc->refcount++;
2402		cam_periph_unlock(periph);
2403		xpt_action(start_ccb);
2404		cam_periph_lock(periph);
2405		softc->refcount--;
2406
2407		/* May have more work to do, so ensure we stay scheduled */
2408		daschedule(periph);
2409		break;
2410	}
2411	case DA_STATE_PROBE_RC:
2412	{
2413		struct scsi_read_capacity_data *rcap;
2414
2415		rcap = (struct scsi_read_capacity_data *)
2416		    malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2417		if (rcap == NULL) {
2418			printf("dastart: Couldn't malloc read_capacity data\n");
2419			/* da_free_periph??? */
2420			break;
2421		}
2422		scsi_read_capacity(&start_ccb->csio,
2423				   /*retries*/da_retry_count,
2424				   dadone,
2425				   MSG_SIMPLE_Q_TAG,
2426				   rcap,
2427				   SSD_FULL_SIZE,
2428				   /*timeout*/5000);
2429		start_ccb->ccb_h.ccb_bp = NULL;
2430		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2431		xpt_action(start_ccb);
2432		break;
2433	}
2434	case DA_STATE_PROBE_RC16:
2435	{
2436		struct scsi_read_capacity_data_long *rcaplong;
2437
2438		rcaplong = (struct scsi_read_capacity_data_long *)
2439			malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2440		if (rcaplong == NULL) {
2441			printf("dastart: Couldn't malloc read_capacity data\n");
2442			/* da_free_periph??? */
2443			break;
2444		}
2445		scsi_read_capacity_16(&start_ccb->csio,
2446				      /*retries*/ da_retry_count,
2447				      /*cbfcnp*/ dadone,
2448				      /*tag_action*/ MSG_SIMPLE_Q_TAG,
2449				      /*lba*/ 0,
2450				      /*reladr*/ 0,
2451				      /*pmi*/ 0,
2452				      /*rcap_buf*/ (uint8_t *)rcaplong,
2453				      /*rcap_buf_len*/ sizeof(*rcaplong),
2454				      /*sense_len*/ SSD_FULL_SIZE,
2455				      /*timeout*/ da_default_timeout * 1000);
2456		start_ccb->ccb_h.ccb_bp = NULL;
2457		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2458		xpt_action(start_ccb);
2459		break;
2460	}
2461	case DA_STATE_PROBE_LBP:
2462	{
2463		struct scsi_vpd_logical_block_prov *lbp;
2464
2465		if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2466			/*
2467			 * If we get here we don't support any SBC-3 delete
2468			 * methods with UNMAP as the Logical Block Provisioning
2469			 * VPD page support is required for devices which
2470			 * support it according to T10/1799-D Revision 31
2471			 * however older revisions of the spec don't mandate
2472			 * this so we currently don't remove these methods
2473			 * from the available set.
2474			 */
2475			softc->state = DA_STATE_PROBE_BLK_LIMITS;
2476			goto skipstate;
2477		}
2478
2479		lbp = (struct scsi_vpd_logical_block_prov *)
2480			malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2481
2482		if (lbp == NULL) {
2483			printf("dastart: Couldn't malloc lbp data\n");
2484			/* da_free_periph??? */
2485			break;
2486		}
2487
2488		scsi_inquiry(&start_ccb->csio,
2489			     /*retries*/da_retry_count,
2490			     /*cbfcnp*/dadone,
2491			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2492			     /*inq_buf*/(u_int8_t *)lbp,
2493			     /*inq_len*/sizeof(*lbp),
2494			     /*evpd*/TRUE,
2495			     /*page_code*/SVPD_LBP,
2496			     /*sense_len*/SSD_MIN_SIZE,
2497			     /*timeout*/da_default_timeout * 1000);
2498		start_ccb->ccb_h.ccb_bp = NULL;
2499		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2500		xpt_action(start_ccb);
2501		break;
2502	}
2503	case DA_STATE_PROBE_BLK_LIMITS:
2504	{
2505		struct scsi_vpd_block_limits *block_limits;
2506
2507		if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2508			/* Not supported skip to next probe */
2509			softc->state = DA_STATE_PROBE_BDC;
2510			goto skipstate;
2511		}
2512
2513		block_limits = (struct scsi_vpd_block_limits *)
2514			malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2515
2516		if (block_limits == NULL) {
2517			printf("dastart: Couldn't malloc block_limits data\n");
2518			/* da_free_periph??? */
2519			break;
2520		}
2521
2522		scsi_inquiry(&start_ccb->csio,
2523			     /*retries*/da_retry_count,
2524			     /*cbfcnp*/dadone,
2525			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2526			     /*inq_buf*/(u_int8_t *)block_limits,
2527			     /*inq_len*/sizeof(*block_limits),
2528			     /*evpd*/TRUE,
2529			     /*page_code*/SVPD_BLOCK_LIMITS,
2530			     /*sense_len*/SSD_MIN_SIZE,
2531			     /*timeout*/da_default_timeout * 1000);
2532		start_ccb->ccb_h.ccb_bp = NULL;
2533		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2534		xpt_action(start_ccb);
2535		break;
2536	}
2537	case DA_STATE_PROBE_BDC:
2538	{
2539		struct scsi_vpd_block_characteristics *bdc;
2540
2541		if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2542			softc->state = DA_STATE_PROBE_ATA;
2543			goto skipstate;
2544		}
2545
2546		bdc = (struct scsi_vpd_block_characteristics *)
2547			malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2548
2549		if (bdc == NULL) {
2550			printf("dastart: Couldn't malloc bdc data\n");
2551			/* da_free_periph??? */
2552			break;
2553		}
2554
2555		scsi_inquiry(&start_ccb->csio,
2556			     /*retries*/da_retry_count,
2557			     /*cbfcnp*/dadone,
2558			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2559			     /*inq_buf*/(u_int8_t *)bdc,
2560			     /*inq_len*/sizeof(*bdc),
2561			     /*evpd*/TRUE,
2562			     /*page_code*/SVPD_BDC,
2563			     /*sense_len*/SSD_MIN_SIZE,
2564			     /*timeout*/da_default_timeout * 1000);
2565		start_ccb->ccb_h.ccb_bp = NULL;
2566		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2567		xpt_action(start_ccb);
2568		break;
2569	}
2570	case DA_STATE_PROBE_ATA:
2571	{
2572		struct ata_params *ata_params;
2573
2574		if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2575			daprobedone(periph, start_ccb);
2576			break;
2577		}
2578
2579		ata_params = (struct ata_params*)
2580			malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2581
2582		if (ata_params == NULL) {
2583			printf("dastart: Couldn't malloc ata_params data\n");
2584			/* da_free_periph??? */
2585			break;
2586		}
2587
2588		scsi_ata_identify(&start_ccb->csio,
2589				  /*retries*/da_retry_count,
2590				  /*cbfcnp*/dadone,
2591                                  /*tag_action*/MSG_SIMPLE_Q_TAG,
2592				  /*data_ptr*/(u_int8_t *)ata_params,
2593				  /*dxfer_len*/sizeof(*ata_params),
2594				  /*sense_len*/SSD_FULL_SIZE,
2595				  /*timeout*/da_default_timeout * 1000);
2596		start_ccb->ccb_h.ccb_bp = NULL;
2597		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2598		xpt_action(start_ccb);
2599		break;
2600	}
2601	}
2602}
2603
2604/*
2605 * In each of the methods below, while its the caller's
2606 * responsibility to ensure the request will fit into a
2607 * single device request, we might have changed the delete
2608 * method due to the device incorrectly advertising either
2609 * its supported methods or limits.
2610 *
2611 * To prevent this causing further issues we validate the
2612 * against the methods limits, and warn which would
2613 * otherwise be unnecessary.
2614 */
2615static void
2616da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2617{
2618	struct da_softc *softc = (struct da_softc *)periph->softc;;
2619	struct bio *bp1;
2620	uint8_t *buf = softc->unmap_buf;
2621	uint64_t lba, lastlba = (uint64_t)-1;
2622	uint64_t totalcount = 0;
2623	uint64_t count;
2624	uint32_t lastcount = 0, c;
2625	uint32_t off, ranges = 0;
2626
2627	/*
2628	 * Currently this doesn't take the UNMAP
2629	 * Granularity and Granularity Alignment
2630	 * fields into account.
2631	 *
2632	 * This could result in both unoptimal unmap
2633	 * requests as as well as UNMAP calls unmapping
2634	 * fewer LBA's than requested.
2635	 */
2636
2637	softc->delete_running = 1;
2638	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2639	bp1 = bp;
2640	do {
2641		bioq_remove(&softc->delete_queue, bp1);
2642		if (bp1 != bp)
2643			bioq_insert_tail(&softc->delete_run_queue, bp1);
2644		lba = bp1->bio_pblkno;
2645		count = bp1->bio_bcount / softc->params.secsize;
2646
2647		/* Try to extend the previous range. */
2648		if (lba == lastlba) {
2649			c = omin(count, UNMAP_RANGE_MAX - lastcount);
2650			lastcount += c;
2651			off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2652			      UNMAP_HEAD_SIZE;
2653			scsi_ulto4b(lastcount, &buf[off + 8]);
2654			count -= c;
2655			lba +=c;
2656			totalcount += c;
2657		}
2658
2659		while (count > 0) {
2660			c = omin(count, UNMAP_RANGE_MAX);
2661			if (totalcount + c > softc->unmap_max_lba ||
2662			    ranges >= softc->unmap_max_ranges) {
2663				xpt_print(periph->path,
2664				    "%s issuing short delete %ld > %ld"
2665				    "|| %d >= %d",
2666				    da_delete_method_desc[softc->delete_method],
2667				    totalcount + c, softc->unmap_max_lba,
2668				    ranges, softc->unmap_max_ranges);
2669				break;
2670			}
2671			off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
2672			scsi_u64to8b(lba, &buf[off + 0]);
2673			scsi_ulto4b(c, &buf[off + 8]);
2674			lba += c;
2675			totalcount += c;
2676			ranges++;
2677			count -= c;
2678			lastcount = c;
2679		}
2680		lastlba = lba;
2681		bp1 = bioq_first(&softc->delete_queue);
2682		if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
2683		    totalcount + bp1->bio_bcount /
2684		    softc->params.secsize > softc->unmap_max_lba)
2685			break;
2686	} while (1);
2687	scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2688	scsi_ulto2b(ranges * 16, &buf[2]);
2689
2690	scsi_unmap(&ccb->csio,
2691		   /*retries*/da_retry_count,
2692		   /*cbfcnp*/dadone,
2693		   /*tag_action*/MSG_SIMPLE_Q_TAG,
2694		   /*byte2*/0,
2695		   /*data_ptr*/ buf,
2696		   /*dxfer_len*/ ranges * 16 + 8,
2697		   /*sense_len*/SSD_FULL_SIZE,
2698		   da_default_timeout * 1000);
2699	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2700	ccb->ccb_h.flags |= CAM_UNLOCKED;
2701}
2702
2703static void
2704da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2705{
2706	struct da_softc *softc = (struct da_softc *)periph->softc;
2707	struct bio *bp1;
2708	uint8_t *buf = softc->unmap_buf;
2709	uint64_t lastlba = (uint64_t)-1;
2710	uint64_t count;
2711	uint64_t lba;
2712	uint32_t lastcount = 0, c, requestcount;
2713	int ranges = 0, off, block_count;
2714
2715	softc->delete_running = 1;
2716	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2717	bp1 = bp;
2718	do {
2719		bioq_remove(&softc->delete_queue, bp1);
2720		if (bp1 != bp)
2721			bioq_insert_tail(&softc->delete_run_queue, bp1);
2722		lba = bp1->bio_pblkno;
2723		count = bp1->bio_bcount / softc->params.secsize;
2724		requestcount = count;
2725
2726		/* Try to extend the previous range. */
2727		if (lba == lastlba) {
2728			c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
2729			lastcount += c;
2730			off = (ranges - 1) * 8;
2731			buf[off + 6] = lastcount & 0xff;
2732			buf[off + 7] = (lastcount >> 8) & 0xff;
2733			count -= c;
2734			lba += c;
2735		}
2736
2737		while (count > 0) {
2738			c = omin(count, ATA_DSM_RANGE_MAX);
2739			off = ranges * 8;
2740
2741			buf[off + 0] = lba & 0xff;
2742			buf[off + 1] = (lba >> 8) & 0xff;
2743			buf[off + 2] = (lba >> 16) & 0xff;
2744			buf[off + 3] = (lba >> 24) & 0xff;
2745			buf[off + 4] = (lba >> 32) & 0xff;
2746			buf[off + 5] = (lba >> 40) & 0xff;
2747			buf[off + 6] = c & 0xff;
2748			buf[off + 7] = (c >> 8) & 0xff;
2749			lba += c;
2750			ranges++;
2751			count -= c;
2752			lastcount = c;
2753			if (count != 0 && ranges == softc->trim_max_ranges) {
2754				xpt_print(periph->path,
2755				    "%s issuing short delete %ld > %ld\n",
2756				    da_delete_method_desc[softc->delete_method],
2757				    requestcount,
2758				    (softc->trim_max_ranges - ranges) *
2759				    ATA_DSM_RANGE_MAX);
2760				break;
2761			}
2762		}
2763		lastlba = lba;
2764		bp1 = bioq_first(&softc->delete_queue);
2765		if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
2766		    (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
2767			break;
2768	} while (1);
2769
2770	block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
2771	scsi_ata_trim(&ccb->csio,
2772		      /*retries*/da_retry_count,
2773		      /*cbfcnp*/dadone,
2774		      /*tag_action*/MSG_SIMPLE_Q_TAG,
2775		      block_count,
2776		      /*data_ptr*/buf,
2777		      /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2778		      /*sense_len*/SSD_FULL_SIZE,
2779		      da_default_timeout * 1000);
2780	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2781	ccb->ccb_h.flags |= CAM_UNLOCKED;
2782}
2783
2784/*
2785 * We calculate ws_max_blks here based off d_delmaxsize instead
2786 * of using softc->ws_max_blks as it is absolute max for the
2787 * device not the protocol max which may well be lower.
2788 */
2789static void
2790da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2791{
2792	struct da_softc *softc;
2793	struct bio *bp1;
2794	uint64_t ws_max_blks;
2795	uint64_t lba;
2796	uint64_t count; /* forward compat with WS32 */
2797
2798	softc = (struct da_softc *)periph->softc;
2799	ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2800	softc->delete_running = 1;
2801	lba = bp->bio_pblkno;
2802	count = 0;
2803	bp1 = bp;
2804	do {
2805		bioq_remove(&softc->delete_queue, bp1);
2806		if (bp1 != bp)
2807			bioq_insert_tail(&softc->delete_run_queue, bp1);
2808		count += bp1->bio_bcount / softc->params.secsize;
2809		if (count > ws_max_blks) {
2810			xpt_print(periph->path,
2811			    "%s issuing short delete %ld > %ld\n",
2812			    da_delete_method_desc[softc->delete_method],
2813			    count, ws_max_blks);
2814			count = omin(count, ws_max_blks);
2815			break;
2816		}
2817		bp1 = bioq_first(&softc->delete_queue);
2818		if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
2819		    count + bp1->bio_bcount /
2820		    softc->params.secsize > ws_max_blks)
2821			break;
2822	} while (1);
2823
2824	scsi_write_same(&ccb->csio,
2825			/*retries*/da_retry_count,
2826			/*cbfcnp*/dadone,
2827			/*tag_action*/MSG_SIMPLE_Q_TAG,
2828			/*byte2*/softc->delete_method ==
2829			    DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2830			softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
2831			/*lba*/lba,
2832			/*block_count*/count,
2833			/*data_ptr*/ __DECONST(void *, zero_region),
2834			/*dxfer_len*/ softc->params.secsize,
2835			/*sense_len*/SSD_FULL_SIZE,
2836			da_default_timeout * 1000);
2837	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2838	ccb->ccb_h.flags |= CAM_UNLOCKED;
2839}
2840
2841static int
2842cmd6workaround(union ccb *ccb)
2843{
2844	struct scsi_rw_6 cmd6;
2845	struct scsi_rw_10 *cmd10;
2846	struct da_softc *softc;
2847	u_int8_t *cdb;
2848	struct bio *bp;
2849	int frozen;
2850
2851	cdb = ccb->csio.cdb_io.cdb_bytes;
2852	softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2853
2854	if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2855		da_delete_methods old_method = softc->delete_method;
2856
2857		/*
2858		 * Typically there are two reasons for failure here
2859		 * 1. Delete method was detected as supported but isn't
2860		 * 2. Delete failed due to invalid params e.g. too big
2861		 *
2862		 * While we will attempt to choose an alternative delete method
2863		 * this may result in short deletes if the existing delete
2864		 * requests from geom are big for the new method choosen.
2865		 *
2866		 * This method assumes that the error which triggered this
2867		 * will not retry the io otherwise a panic will occur
2868		 */
2869		dadeleteflag(softc, old_method, 0);
2870		dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2871		if (softc->delete_method == DA_DELETE_DISABLE)
2872			xpt_print(ccb->ccb_h.path,
2873				  "%s failed, disabling BIO_DELETE\n",
2874				  da_delete_method_desc[old_method]);
2875		else
2876			xpt_print(ccb->ccb_h.path,
2877				  "%s failed, switching to %s BIO_DELETE\n",
2878				  da_delete_method_desc[old_method],
2879				  da_delete_method_desc[softc->delete_method]);
2880
2881		while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
2882			bioq_disksort(&softc->delete_queue, bp);
2883		bioq_disksort(&softc->delete_queue,
2884		    (struct bio *)ccb->ccb_h.ccb_bp);
2885		ccb->ccb_h.ccb_bp = NULL;
2886		return (0);
2887	}
2888
2889	/* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
2890	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2891	    (*cdb == PREVENT_ALLOW) &&
2892	    (softc->quirks & DA_Q_NO_PREVENT) == 0) {
2893		if (bootverbose)
2894			xpt_print(ccb->ccb_h.path,
2895			    "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
2896		softc->quirks |= DA_Q_NO_PREVENT;
2897		return (0);
2898	}
2899
2900	/* Detect unsupported SYNCHRONIZE CACHE(10). */
2901	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2902	    (*cdb == SYNCHRONIZE_CACHE) &&
2903	    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
2904		if (bootverbose)
2905			xpt_print(ccb->ccb_h.path,
2906			    "SYNCHRONIZE CACHE(10) not supported.\n");
2907		softc->quirks |= DA_Q_NO_SYNC_CACHE;
2908		softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
2909		return (0);
2910	}
2911
2912	/* Translation only possible if CDB is an array and cmd is R/W6 */
2913	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2914	    (*cdb != READ_6 && *cdb != WRITE_6))
2915		return 0;
2916
2917	xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2918	    "increasing minimum_cmd_size to 10.\n");
2919 	softc->minimum_cmd_size = 10;
2920
2921	bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2922	cmd10 = (struct scsi_rw_10 *)cdb;
2923	cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2924	cmd10->byte2 = 0;
2925	scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2926	cmd10->reserved = 0;
2927	scsi_ulto2b(cmd6.length, cmd10->length);
2928	cmd10->control = cmd6.control;
2929	ccb->csio.cdb_len = sizeof(*cmd10);
2930
2931	/* Requeue request, unfreezing queue if necessary */
2932	frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2933 	ccb->ccb_h.status = CAM_REQUEUE_REQ;
2934	xpt_action(ccb);
2935	if (frozen) {
2936		cam_release_devq(ccb->ccb_h.path,
2937				 /*relsim_flags*/0,
2938				 /*reduction*/0,
2939				 /*timeout*/0,
2940				 /*getcount_only*/0);
2941	}
2942	return (ERESTART);
2943}
2944
2945static void
2946dadone(struct cam_periph *periph, union ccb *done_ccb)
2947{
2948	struct da_softc *softc;
2949	struct ccb_scsiio *csio;
2950	u_int32_t  priority;
2951	da_ccb_state state;
2952
2953	softc = (struct da_softc *)periph->softc;
2954	priority = done_ccb->ccb_h.pinfo.priority;
2955
2956	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2957
2958	csio = &done_ccb->csio;
2959	state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
2960	switch (state) {
2961	case DA_CCB_BUFFER_IO:
2962	case DA_CCB_DELETE:
2963	{
2964		struct bio *bp, *bp1;
2965
2966		cam_periph_lock(periph);
2967		bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2968		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2969			int error;
2970			int sf;
2971
2972			if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2973				sf = SF_RETRY_UA;
2974			else
2975				sf = 0;
2976
2977			error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2978			if (error == ERESTART) {
2979				/*
2980				 * A retry was scheduled, so
2981				 * just return.
2982				 */
2983				cam_periph_unlock(periph);
2984				return;
2985			}
2986			bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2987			if (error != 0) {
2988				int queued_error;
2989
2990				/*
2991				 * return all queued I/O with EIO, so that
2992				 * the client can retry these I/Os in the
2993				 * proper order should it attempt to recover.
2994				 */
2995				queued_error = EIO;
2996
2997				if (error == ENXIO
2998				 && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2999					/*
3000					 * Catastrophic error.  Mark our pack as
3001					 * invalid.
3002					 */
3003					/*
3004					 * XXX See if this is really a media
3005					 * XXX change first?
3006					 */
3007					xpt_print(periph->path,
3008					    "Invalidating pack\n");
3009					softc->flags |= DA_FLAG_PACK_INVALID;
3010					queued_error = ENXIO;
3011				}
3012				bioq_flush(&softc->bio_queue, NULL,
3013					   queued_error);
3014				if (bp != NULL) {
3015					bp->bio_error = error;
3016					bp->bio_resid = bp->bio_bcount;
3017					bp->bio_flags |= BIO_ERROR;
3018				}
3019			} else if (bp != NULL) {
3020				if (state == DA_CCB_DELETE)
3021					bp->bio_resid = 0;
3022				else
3023					bp->bio_resid = csio->resid;
3024				bp->bio_error = 0;
3025				if (bp->bio_resid != 0)
3026					bp->bio_flags |= BIO_ERROR;
3027			}
3028			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3029				cam_release_devq(done_ccb->ccb_h.path,
3030						 /*relsim_flags*/0,
3031						 /*reduction*/0,
3032						 /*timeout*/0,
3033						 /*getcount_only*/0);
3034		} else if (bp != NULL) {
3035			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3036				panic("REQ_CMP with QFRZN");
3037			if (state == DA_CCB_DELETE)
3038				bp->bio_resid = 0;
3039			else
3040				bp->bio_resid = csio->resid;
3041			if (csio->resid > 0)
3042				bp->bio_flags |= BIO_ERROR;
3043			if (softc->error_inject != 0) {
3044				bp->bio_error = softc->error_inject;
3045				bp->bio_resid = bp->bio_bcount;
3046				bp->bio_flags |= BIO_ERROR;
3047				softc->error_inject = 0;
3048			}
3049		}
3050
3051		LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
3052		if (LIST_EMPTY(&softc->pending_ccbs))
3053			softc->flags |= DA_FLAG_WAS_OTAG;
3054
3055		xpt_release_ccb(done_ccb);
3056		if (state == DA_CCB_DELETE) {
3057			TAILQ_HEAD(, bio) queue;
3058
3059			TAILQ_INIT(&queue);
3060			TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
3061			softc->delete_run_queue.insert_point = NULL;
3062			/*
3063			 * Normally, the xpt_release_ccb() above would make sure
3064			 * that when we have more work to do, that work would
3065			 * get kicked off. However, we specifically keep
3066			 * delete_running set to 0 before the call above to
3067			 * allow other I/O to progress when many BIO_DELETE
3068			 * requests are pushed down. We set delete_running to 0
3069			 * and call daschedule again so that we don't stall if
3070			 * there are no other I/Os pending apart from BIO_DELETEs.
3071			 */
3072			softc->delete_running = 0;
3073			daschedule(periph);
3074			cam_periph_unlock(periph);
3075			while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
3076				TAILQ_REMOVE(&queue, bp1, bio_queue);
3077				bp1->bio_error = bp->bio_error;
3078				if (bp->bio_flags & BIO_ERROR) {
3079					bp1->bio_flags |= BIO_ERROR;
3080					bp1->bio_resid = bp1->bio_bcount;
3081				} else
3082					bp1->bio_resid = 0;
3083				biodone(bp1);
3084			}
3085		} else
3086			cam_periph_unlock(periph);
3087		if (bp != NULL)
3088			biodone(bp);
3089		return;
3090	}
3091	case DA_CCB_PROBE_RC:
3092	case DA_CCB_PROBE_RC16:
3093	{
3094		struct	   scsi_read_capacity_data *rdcap;
3095		struct     scsi_read_capacity_data_long *rcaplong;
3096		char	   announce_buf[80];
3097		int	   lbp;
3098
3099		lbp = 0;
3100		rdcap = NULL;
3101		rcaplong = NULL;
3102		if (state == DA_CCB_PROBE_RC)
3103			rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
3104		else
3105			rcaplong = (struct scsi_read_capacity_data_long *)
3106				csio->data_ptr;
3107
3108		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3109			struct disk_params *dp;
3110			uint32_t block_size;
3111			uint64_t maxsector;
3112			u_int lbppbe;	/* LB per physical block exponent. */
3113			u_int lalba;	/* Lowest aligned LBA. */
3114
3115			if (state == DA_CCB_PROBE_RC) {
3116				block_size = scsi_4btoul(rdcap->length);
3117				maxsector = scsi_4btoul(rdcap->addr);
3118				lbppbe = 0;
3119				lalba = 0;
3120
3121				/*
3122				 * According to SBC-2, if the standard 10
3123				 * byte READ CAPACITY command returns 2^32,
3124				 * we should issue the 16 byte version of
3125				 * the command, since the device in question
3126				 * has more sectors than can be represented
3127				 * with the short version of the command.
3128				 */
3129				if (maxsector == 0xffffffff) {
3130					free(rdcap, M_SCSIDA);
3131					xpt_release_ccb(done_ccb);
3132					softc->state = DA_STATE_PROBE_RC16;
3133					xpt_schedule(periph, priority);
3134					return;
3135				}
3136			} else {
3137				block_size = scsi_4btoul(rcaplong->length);
3138				maxsector = scsi_8btou64(rcaplong->addr);
3139				lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3140				lalba = scsi_2btoul(rcaplong->lalba_lbp);
3141			}
3142
3143			/*
3144			 * Because GEOM code just will panic us if we
3145			 * give them an 'illegal' value we'll avoid that
3146			 * here.
3147			 */
3148			if (block_size == 0) {
3149				block_size = 512;
3150				if (maxsector == 0)
3151					maxsector = -1;
3152			}
3153			if (block_size >= MAXPHYS) {
3154				xpt_print(periph->path,
3155				    "unsupportable block size %ju\n",
3156				    (uintmax_t) block_size);
3157				announce_buf[0] = '\0';
3158				cam_periph_invalidate(periph);
3159			} else {
3160				/*
3161				 * We pass rcaplong into dasetgeom(),
3162				 * because it will only use it if it is
3163				 * non-NULL.
3164				 */
3165				dasetgeom(periph, block_size, maxsector,
3166					  rcaplong, sizeof(*rcaplong));
3167				lbp = (lalba & SRC16_LBPME_A);
3168				dp = &softc->params;
3169				snprintf(announce_buf, sizeof(announce_buf),
3170				    "%juMB (%ju %u byte sectors)",
3171				    ((uintmax_t)dp->secsize * dp->sectors) /
3172				     (1024 * 1024),
3173				    (uintmax_t)dp->sectors, dp->secsize);
3174			}
3175		} else {
3176			int	error;
3177
3178			announce_buf[0] = '\0';
3179
3180			/*
3181			 * Retry any UNIT ATTENTION type errors.  They
3182			 * are expected at boot.
3183			 */
3184			error = daerror(done_ccb, CAM_RETRY_SELTO,
3185					SF_RETRY_UA|SF_NO_PRINT);
3186			if (error == ERESTART) {
3187				/*
3188				 * A retry was scheuled, so
3189				 * just return.
3190				 */
3191				return;
3192			} else if (error != 0) {
3193				int asc, ascq;
3194				int sense_key, error_code;
3195				int have_sense;
3196				cam_status status;
3197				struct ccb_getdev cgd;
3198
3199				/* Don't wedge this device's queue */
3200				status = done_ccb->ccb_h.status;
3201				if ((status & CAM_DEV_QFRZN) != 0)
3202					cam_release_devq(done_ccb->ccb_h.path,
3203							 /*relsim_flags*/0,
3204							 /*reduction*/0,
3205							 /*timeout*/0,
3206							 /*getcount_only*/0);
3207
3208
3209				xpt_setup_ccb(&cgd.ccb_h,
3210					      done_ccb->ccb_h.path,
3211					      CAM_PRIORITY_NORMAL);
3212				cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3213				xpt_action((union ccb *)&cgd);
3214
3215				if (scsi_extract_sense_ccb(done_ccb,
3216				    &error_code, &sense_key, &asc, &ascq))
3217					have_sense = TRUE;
3218				else
3219					have_sense = FALSE;
3220
3221				/*
3222				 * If we tried READ CAPACITY(16) and failed,
3223				 * fallback to READ CAPACITY(10).
3224				 */
3225				if ((state == DA_CCB_PROBE_RC16) &&
3226				    (softc->flags & DA_FLAG_CAN_RC16) &&
3227				    (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3228					CAM_REQ_INVALID) ||
3229				     ((have_sense) &&
3230				      (error_code == SSD_CURRENT_ERROR) &&
3231				      (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3232					softc->flags &= ~DA_FLAG_CAN_RC16;
3233					free(rdcap, M_SCSIDA);
3234					xpt_release_ccb(done_ccb);
3235					softc->state = DA_STATE_PROBE_RC;
3236					xpt_schedule(periph, priority);
3237					return;
3238				} else
3239				/*
3240				 * Attach to anything that claims to be a
3241				 * direct access or optical disk device,
3242				 * as long as it doesn't return a "Logical
3243				 * unit not supported" (0x25) error.
3244				 */
3245				if ((have_sense) && (asc != 0x25)
3246				 && (error_code == SSD_CURRENT_ERROR)) {
3247					const char *sense_key_desc;
3248					const char *asc_desc;
3249
3250					dasetgeom(periph, 512, -1, NULL, 0);
3251					scsi_sense_desc(sense_key, asc, ascq,
3252							&cgd.inq_data,
3253							&sense_key_desc,
3254							&asc_desc);
3255					snprintf(announce_buf,
3256					    sizeof(announce_buf),
3257						"Attempt to query device "
3258						"size failed: %s, %s",
3259						sense_key_desc,
3260						asc_desc);
3261				} else {
3262					if (have_sense)
3263						scsi_sense_print(
3264							&done_ccb->csio);
3265					else {
3266						xpt_print(periph->path,
3267						    "got CAM status %#x\n",
3268						    done_ccb->ccb_h.status);
3269					}
3270
3271					xpt_print(periph->path, "fatal error, "
3272					    "failed to attach to device\n");
3273
3274					/*
3275					 * Free up resources.
3276					 */
3277					cam_periph_invalidate(periph);
3278				}
3279			}
3280		}
3281		free(csio->data_ptr, M_SCSIDA);
3282		if (announce_buf[0] != '\0' &&
3283		    ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
3284			/*
3285			 * Create our sysctl variables, now that we know
3286			 * we have successfully attached.
3287			 */
3288			/* increase the refcount */
3289			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3290				taskqueue_enqueue(taskqueue_thread,
3291						  &softc->sysctl_task);
3292				xpt_announce_periph(periph, announce_buf);
3293				xpt_announce_quirks(periph, softc->quirks,
3294				    DA_Q_BIT_STRING);
3295			} else {
3296				xpt_print(periph->path, "fatal error, "
3297				    "could not acquire reference count\n");
3298			}
3299		}
3300
3301		/* We already probed the device. */
3302		if (softc->flags & DA_FLAG_PROBED) {
3303			daprobedone(periph, done_ccb);
3304			return;
3305		}
3306
3307		/* Ensure re-probe doesn't see old delete. */
3308		softc->delete_available = 0;
3309		dadeleteflag(softc, DA_DELETE_ZERO, 1);
3310		if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3311			/*
3312			 * Based on older SBC-3 spec revisions
3313			 * any of the UNMAP methods "may" be
3314			 * available via LBP given this flag so
3315			 * we flag all of them as availble and
3316			 * then remove those which further
3317			 * probes confirm aren't available
3318			 * later.
3319			 *
3320			 * We could also check readcap(16) p_type
3321			 * flag to exclude one or more invalid
3322			 * write same (X) types here
3323			 */
3324			dadeleteflag(softc, DA_DELETE_WS16, 1);
3325			dadeleteflag(softc, DA_DELETE_WS10, 1);
3326			dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3327
3328			xpt_release_ccb(done_ccb);
3329			softc->state = DA_STATE_PROBE_LBP;
3330			xpt_schedule(periph, priority);
3331			return;
3332		}
3333
3334		xpt_release_ccb(done_ccb);
3335		softc->state = DA_STATE_PROBE_BDC;
3336		xpt_schedule(periph, priority);
3337		return;
3338	}
3339	case DA_CCB_PROBE_LBP:
3340	{
3341		struct scsi_vpd_logical_block_prov *lbp;
3342
3343		lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3344
3345		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3346			/*
3347			 * T10/1799-D Revision 31 states at least one of these
3348			 * must be supported but we don't currently enforce this.
3349			 */
3350			dadeleteflag(softc, DA_DELETE_WS16,
3351				     (lbp->flags & SVPD_LBP_WS16));
3352			dadeleteflag(softc, DA_DELETE_WS10,
3353				     (lbp->flags & SVPD_LBP_WS10));
3354			dadeleteflag(softc, DA_DELETE_UNMAP,
3355				     (lbp->flags & SVPD_LBP_UNMAP));
3356		} else {
3357			int error;
3358			error = daerror(done_ccb, CAM_RETRY_SELTO,
3359					SF_RETRY_UA|SF_NO_PRINT);
3360			if (error == ERESTART)
3361				return;
3362			else if (error != 0) {
3363				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3364					/* Don't wedge this device's queue */
3365					cam_release_devq(done_ccb->ccb_h.path,
3366							 /*relsim_flags*/0,
3367							 /*reduction*/0,
3368							 /*timeout*/0,
3369							 /*getcount_only*/0);
3370				}
3371
3372				/*
3373				 * Failure indicates we don't support any SBC-3
3374				 * delete methods with UNMAP
3375				 */
3376			}
3377		}
3378
3379		free(lbp, M_SCSIDA);
3380		xpt_release_ccb(done_ccb);
3381		softc->state = DA_STATE_PROBE_BLK_LIMITS;
3382		xpt_schedule(periph, priority);
3383		return;
3384	}
3385	case DA_CCB_PROBE_BLK_LIMITS:
3386	{
3387		struct scsi_vpd_block_limits *block_limits;
3388
3389		block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3390
3391		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3392			uint32_t max_txfer_len = scsi_4btoul(
3393				block_limits->max_txfer_len);
3394			uint32_t max_unmap_lba_cnt = scsi_4btoul(
3395				block_limits->max_unmap_lba_cnt);
3396			uint32_t max_unmap_blk_cnt = scsi_4btoul(
3397				block_limits->max_unmap_blk_cnt);
3398			uint64_t ws_max_blks = scsi_8btou64(
3399				block_limits->max_write_same_length);
3400
3401			if (max_txfer_len != 0) {
3402				softc->disk->d_maxsize = MIN(softc->maxio,
3403				    (off_t)max_txfer_len * softc->params.secsize);
3404			}
3405
3406			/*
3407			 * We should already support UNMAP but we check lba
3408			 * and block count to be sure
3409			 */
3410			if (max_unmap_lba_cnt != 0x00L &&
3411			    max_unmap_blk_cnt != 0x00L) {
3412				softc->unmap_max_lba = max_unmap_lba_cnt;
3413				softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3414					UNMAP_MAX_RANGES);
3415			} else {
3416				/*
3417				 * Unexpected UNMAP limits which means the
3418				 * device doesn't actually support UNMAP
3419				 */
3420				dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3421			}
3422
3423			if (ws_max_blks != 0x00L)
3424				softc->ws_max_blks = ws_max_blks;
3425		} else {
3426			int error;
3427			error = daerror(done_ccb, CAM_RETRY_SELTO,
3428					SF_RETRY_UA|SF_NO_PRINT);
3429			if (error == ERESTART)
3430				return;
3431			else if (error != 0) {
3432				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3433					/* Don't wedge this device's queue */
3434					cam_release_devq(done_ccb->ccb_h.path,
3435							 /*relsim_flags*/0,
3436							 /*reduction*/0,
3437							 /*timeout*/0,
3438							 /*getcount_only*/0);
3439				}
3440
3441				/*
3442				 * Failure here doesn't mean UNMAP is not
3443				 * supported as this is an optional page.
3444				 */
3445				softc->unmap_max_lba = 1;
3446				softc->unmap_max_ranges = 1;
3447			}
3448		}
3449
3450		free(block_limits, M_SCSIDA);
3451		xpt_release_ccb(done_ccb);
3452		softc->state = DA_STATE_PROBE_BDC;
3453		xpt_schedule(periph, priority);
3454		return;
3455	}
3456	case DA_CCB_PROBE_BDC:
3457	{
3458		struct scsi_vpd_block_characteristics *bdc;
3459
3460		bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3461
3462		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3463			/*
3464			 * Disable queue sorting for non-rotational media
3465			 * by default.
3466			 */
3467			u_int16_t old_rate = softc->disk->d_rotation_rate;
3468
3469			softc->disk->d_rotation_rate =
3470				scsi_2btoul(bdc->medium_rotation_rate);
3471			if (softc->disk->d_rotation_rate ==
3472			    SVPD_BDC_RATE_NON_ROTATING) {
3473				softc->sort_io_queue = 0;
3474			}
3475			if (softc->disk->d_rotation_rate != old_rate) {
3476				disk_attr_changed(softc->disk,
3477				    "GEOM::rotation_rate", M_NOWAIT);
3478			}
3479		} else {
3480			int error;
3481			error = daerror(done_ccb, CAM_RETRY_SELTO,
3482					SF_RETRY_UA|SF_NO_PRINT);
3483			if (error == ERESTART)
3484				return;
3485			else if (error != 0) {
3486				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3487					/* Don't wedge this device's queue */
3488					cam_release_devq(done_ccb->ccb_h.path,
3489							 /*relsim_flags*/0,
3490							 /*reduction*/0,
3491							 /*timeout*/0,
3492							 /*getcount_only*/0);
3493				}
3494			}
3495		}
3496
3497		free(bdc, M_SCSIDA);
3498		xpt_release_ccb(done_ccb);
3499		softc->state = DA_STATE_PROBE_ATA;
3500		xpt_schedule(periph, priority);
3501		return;
3502	}
3503	case DA_CCB_PROBE_ATA:
3504	{
3505		int i;
3506		struct ata_params *ata_params;
3507		int16_t *ptr;
3508
3509		ata_params = (struct ata_params *)csio->data_ptr;
3510		ptr = (uint16_t *)ata_params;
3511
3512		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3513			uint16_t old_rate;
3514
3515			for (i = 0; i < sizeof(*ata_params) / 2; i++)
3516				ptr[i] = le16toh(ptr[i]);
3517			if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
3518			    (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3519				dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3520				if (ata_params->max_dsm_blocks != 0)
3521					softc->trim_max_ranges = min(
3522					  softc->trim_max_ranges,
3523					  ata_params->max_dsm_blocks *
3524					  ATA_DSM_BLK_RANGES);
3525			}
3526			/*
3527			 * Disable queue sorting for non-rotational media
3528			 * by default.
3529			 */
3530			old_rate = softc->disk->d_rotation_rate;
3531			softc->disk->d_rotation_rate =
3532			    ata_params->media_rotation_rate;
3533			if (softc->disk->d_rotation_rate ==
3534			    ATA_RATE_NON_ROTATING) {
3535				softc->sort_io_queue = 0;
3536			}
3537
3538			if (softc->disk->d_rotation_rate != old_rate) {
3539				disk_attr_changed(softc->disk,
3540				    "GEOM::rotation_rate", M_NOWAIT);
3541			}
3542		} else {
3543			int error;
3544			error = daerror(done_ccb, CAM_RETRY_SELTO,
3545					SF_RETRY_UA|SF_NO_PRINT);
3546			if (error == ERESTART)
3547				return;
3548			else if (error != 0) {
3549				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3550					/* Don't wedge this device's queue */
3551					cam_release_devq(done_ccb->ccb_h.path,
3552							 /*relsim_flags*/0,
3553							 /*reduction*/0,
3554							 /*timeout*/0,
3555							 /*getcount_only*/0);
3556				}
3557			}
3558		}
3559
3560		free(ata_params, M_SCSIDA);
3561		daprobedone(periph, done_ccb);
3562		return;
3563	}
3564	case DA_CCB_DUMP:
3565		/* No-op.  We're polling */
3566		return;
3567	case DA_CCB_TUR:
3568	{
3569		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3570
3571			if (daerror(done_ccb, CAM_RETRY_SELTO,
3572			    SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3573			    ERESTART)
3574				return;
3575			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3576				cam_release_devq(done_ccb->ccb_h.path,
3577						 /*relsim_flags*/0,
3578						 /*reduction*/0,
3579						 /*timeout*/0,
3580						 /*getcount_only*/0);
3581		}
3582		xpt_release_ccb(done_ccb);
3583		cam_periph_release_locked(periph);
3584		return;
3585	}
3586	default:
3587		break;
3588	}
3589	xpt_release_ccb(done_ccb);
3590}
3591
3592static void
3593dareprobe(struct cam_periph *periph)
3594{
3595	struct da_softc	  *softc;
3596	cam_status status;
3597
3598	softc = (struct da_softc *)periph->softc;
3599
3600	/* Probe in progress; don't interfere. */
3601	if (softc->state != DA_STATE_NORMAL)
3602		return;
3603
3604	status = cam_periph_acquire(periph);
3605	KASSERT(status == CAM_REQ_CMP,
3606	    ("dareprobe: cam_periph_acquire failed"));
3607
3608	if (softc->flags & DA_FLAG_CAN_RC16)
3609		softc->state = DA_STATE_PROBE_RC16;
3610	else
3611		softc->state = DA_STATE_PROBE_RC;
3612
3613	xpt_schedule(periph, CAM_PRIORITY_DEV);
3614}
3615
3616static int
3617daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3618{
3619	struct da_softc	  *softc;
3620	struct cam_periph *periph;
3621	int error, error_code, sense_key, asc, ascq;
3622
3623	periph = xpt_path_periph(ccb->ccb_h.path);
3624	softc = (struct da_softc *)periph->softc;
3625
3626 	/*
3627	 * Automatically detect devices that do not support
3628 	 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3629 	 */
3630	error = 0;
3631	if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3632		error = cmd6workaround(ccb);
3633	} else if (scsi_extract_sense_ccb(ccb,
3634	    &error_code, &sense_key, &asc, &ascq)) {
3635		if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3636 			error = cmd6workaround(ccb);
3637		/*
3638		 * If the target replied with CAPACITY DATA HAS CHANGED UA,
3639		 * query the capacity and notify upper layers.
3640		 */
3641		else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3642		    asc == 0x2A && ascq == 0x09) {
3643			xpt_print(periph->path, "Capacity data has changed\n");
3644			softc->flags &= ~DA_FLAG_PROBED;
3645			dareprobe(periph);
3646			sense_flags |= SF_NO_PRINT;
3647		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3648		    asc == 0x28 && ascq == 0x00) {
3649			softc->flags &= ~DA_FLAG_PROBED;
3650			disk_media_changed(softc->disk, M_NOWAIT);
3651		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3652		    asc == 0x3F && ascq == 0x03) {
3653			xpt_print(periph->path, "INQUIRY data has changed\n");
3654			softc->flags &= ~DA_FLAG_PROBED;
3655			dareprobe(periph);
3656			sense_flags |= SF_NO_PRINT;
3657		} else if (sense_key == SSD_KEY_NOT_READY &&
3658		    asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
3659			softc->flags |= DA_FLAG_PACK_INVALID;
3660			disk_media_gone(softc->disk, M_NOWAIT);
3661		}
3662	}
3663	if (error == ERESTART)
3664		return (ERESTART);
3665
3666	/*
3667	 * XXX
3668	 * Until we have a better way of doing pack validation,
3669	 * don't treat UAs as errors.
3670	 */
3671	sense_flags |= SF_RETRY_UA;
3672
3673	if (softc->quirks & DA_Q_RETRY_BUSY)
3674		sense_flags |= SF_RETRY_BUSY;
3675	return(cam_periph_error(ccb, cam_flags, sense_flags,
3676				&softc->saved_ccb));
3677}
3678
3679static void
3680damediapoll(void *arg)
3681{
3682	struct cam_periph *periph = arg;
3683	struct da_softc *softc = periph->softc;
3684
3685	if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
3686		if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3687			softc->tur = 1;
3688			daschedule(periph);
3689		}
3690	}
3691	/* Queue us up again */
3692	if (da_poll_period != 0)
3693		callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3694}
3695
3696static void
3697daprevent(struct cam_periph *periph, int action)
3698{
3699	struct	da_softc *softc;
3700	union	ccb *ccb;
3701	int	error;
3702
3703	softc = (struct da_softc *)periph->softc;
3704
3705	if (((action == PR_ALLOW)
3706	  && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3707	 || ((action == PR_PREVENT)
3708	  && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3709		return;
3710	}
3711
3712	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3713
3714	scsi_prevent(&ccb->csio,
3715		     /*retries*/1,
3716		     /*cbcfp*/dadone,
3717		     MSG_SIMPLE_Q_TAG,
3718		     action,
3719		     SSD_FULL_SIZE,
3720		     5000);
3721
3722	error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3723	    SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
3724
3725	if (error == 0) {
3726		if (action == PR_ALLOW)
3727			softc->flags &= ~DA_FLAG_PACK_LOCKED;
3728		else
3729			softc->flags |= DA_FLAG_PACK_LOCKED;
3730	}
3731
3732	xpt_release_ccb(ccb);
3733}
3734
3735static void
3736dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3737	  struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3738{
3739	struct ccb_calc_geometry ccg;
3740	struct da_softc *softc;
3741	struct disk_params *dp;
3742	u_int lbppbe, lalba;
3743	int error;
3744
3745	softc = (struct da_softc *)periph->softc;
3746
3747	dp = &softc->params;
3748	dp->secsize = block_len;
3749	dp->sectors = maxsector + 1;
3750	if (rcaplong != NULL) {
3751		lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3752		lalba = scsi_2btoul(rcaplong->lalba_lbp);
3753		lalba &= SRC16_LALBA_A;
3754	} else {
3755		lbppbe = 0;
3756		lalba = 0;
3757	}
3758
3759	if (lbppbe > 0) {
3760		dp->stripesize = block_len << lbppbe;
3761		dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3762		    dp->stripesize;
3763	} else if (softc->quirks & DA_Q_4K) {
3764		dp->stripesize = 4096;
3765		dp->stripeoffset = 0;
3766	} else {
3767		dp->stripesize = 0;
3768		dp->stripeoffset = 0;
3769	}
3770	/*
3771	 * Have the controller provide us with a geometry
3772	 * for this disk.  The only time the geometry
3773	 * matters is when we boot and the controller
3774	 * is the only one knowledgeable enough to come
3775	 * up with something that will make this a bootable
3776	 * device.
3777	 */
3778	xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3779	ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3780	ccg.block_size = dp->secsize;
3781	ccg.volume_size = dp->sectors;
3782	ccg.heads = 0;
3783	ccg.secs_per_track = 0;
3784	ccg.cylinders = 0;
3785	xpt_action((union ccb*)&ccg);
3786	if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3787		/*
3788		 * We don't know what went wrong here- but just pick
3789		 * a geometry so we don't have nasty things like divide
3790		 * by zero.
3791		 */
3792		dp->heads = 255;
3793		dp->secs_per_track = 255;
3794		dp->cylinders = dp->sectors / (255 * 255);
3795		if (dp->cylinders == 0) {
3796			dp->cylinders = 1;
3797		}
3798	} else {
3799		dp->heads = ccg.heads;
3800		dp->secs_per_track = ccg.secs_per_track;
3801		dp->cylinders = ccg.cylinders;
3802	}
3803
3804	/*
3805	 * If the user supplied a read capacity buffer, and if it is
3806	 * different than the previous buffer, update the data in the EDT.
3807	 * If it's the same, we don't bother.  This avoids sending an
3808	 * update every time someone opens this device.
3809	 */
3810	if ((rcaplong != NULL)
3811	 && (bcmp(rcaplong, &softc->rcaplong,
3812		  min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3813		struct ccb_dev_advinfo cdai;
3814
3815		xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3816		cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3817		cdai.buftype = CDAI_TYPE_RCAPLONG;
3818		cdai.flags = CDAI_FLAG_STORE;
3819		cdai.bufsiz = rcap_len;
3820		cdai.buf = (uint8_t *)rcaplong;
3821		xpt_action((union ccb *)&cdai);
3822		if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3823			cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3824		if (cdai.ccb_h.status != CAM_REQ_CMP) {
3825			xpt_print(periph->path, "%s: failed to set read "
3826				  "capacity advinfo\n", __func__);
3827			/* Use cam_error_print() to decode the status */
3828			cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3829					CAM_EPF_ALL);
3830		} else {
3831			bcopy(rcaplong, &softc->rcaplong,
3832			      min(sizeof(softc->rcaplong), rcap_len));
3833		}
3834	}
3835
3836	softc->disk->d_sectorsize = softc->params.secsize;
3837	softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3838	softc->disk->d_stripesize = softc->params.stripesize;
3839	softc->disk->d_stripeoffset = softc->params.stripeoffset;
3840	/* XXX: these are not actually "firmware" values, so they may be wrong */
3841	softc->disk->d_fwsectors = softc->params.secs_per_track;
3842	softc->disk->d_fwheads = softc->params.heads;
3843	softc->disk->d_devstat->block_size = softc->params.secsize;
3844	softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3845
3846	error = disk_resize(softc->disk, M_NOWAIT);
3847	if (error != 0)
3848		xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
3849}
3850
3851static void
3852dasendorderedtag(void *arg)
3853{
3854	struct da_softc *softc = arg;
3855
3856	if (da_send_ordered) {
3857		if (!LIST_EMPTY(&softc->pending_ccbs)) {
3858			if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
3859				softc->flags |= DA_FLAG_NEED_OTAG;
3860			softc->flags &= ~DA_FLAG_WAS_OTAG;
3861		}
3862	}
3863	/* Queue us up again */
3864	callout_reset(&softc->sendordered_c,
3865	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3866	    dasendorderedtag, softc);
3867}
3868
3869/*
3870 * Step through all DA peripheral drivers, and if the device is still open,
3871 * sync the disk cache to physical media.
3872 */
3873static void
3874dashutdown(void * arg, int howto)
3875{
3876	struct cam_periph *periph;
3877	struct da_softc *softc;
3878	union ccb *ccb;
3879	int error;
3880
3881	CAM_PERIPH_FOREACH(periph, &dadriver) {
3882		softc = (struct da_softc *)periph->softc;
3883		if (SCHEDULER_STOPPED()) {
3884			/* If we paniced with the lock held, do not recurse. */
3885			if (!cam_periph_owned(periph) &&
3886			    (softc->flags & DA_FLAG_OPEN)) {
3887				dadump(softc->disk, NULL, 0, 0, 0);
3888			}
3889			continue;
3890		}
3891		cam_periph_lock(periph);
3892
3893		/*
3894		 * We only sync the cache if the drive is still open, and
3895		 * if the drive is capable of it..
3896		 */
3897		if (((softc->flags & DA_FLAG_OPEN) == 0)
3898		 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
3899			cam_periph_unlock(periph);
3900			continue;
3901		}
3902
3903		ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3904		scsi_synchronize_cache(&ccb->csio,
3905				       /*retries*/0,
3906				       /*cbfcnp*/dadone,
3907				       MSG_SIMPLE_Q_TAG,
3908				       /*begin_lba*/0, /* whole disk */
3909				       /*lb_count*/0,
3910				       SSD_FULL_SIZE,
3911				       60 * 60 * 1000);
3912
3913		error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
3914		    /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
3915		    softc->disk->d_devstat);
3916		if (error != 0)
3917			xpt_print(periph->path, "Synchronize cache failed\n");
3918		xpt_release_ccb(ccb);
3919		cam_periph_unlock(periph);
3920	}
3921}
3922
3923#else /* !_KERNEL */
3924
3925/*
3926 * XXX These are only left out of the kernel build to silence warnings.  If,
3927 * for some reason these functions are used in the kernel, the ifdefs should
3928 * be moved so they are included both in the kernel and userland.
3929 */
3930void
3931scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
3932		 void (*cbfcnp)(struct cam_periph *, union ccb *),
3933		 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
3934		 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3935		 u_int32_t timeout)
3936{
3937	struct scsi_format_unit *scsi_cmd;
3938
3939	scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
3940	scsi_cmd->opcode = FORMAT_UNIT;
3941	scsi_cmd->byte2 = byte2;
3942	scsi_ulto2b(ileave, scsi_cmd->interleave);
3943
3944	cam_fill_csio(csio,
3945		      retries,
3946		      cbfcnp,
3947		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3948		      tag_action,
3949		      data_ptr,
3950		      dxfer_len,
3951		      sense_len,
3952		      sizeof(*scsi_cmd),
3953		      timeout);
3954}
3955
3956void
3957scsi_read_defects(struct ccb_scsiio *csio, uint32_t retries,
3958		  void (*cbfcnp)(struct cam_periph *, union ccb *),
3959		  uint8_t tag_action, uint8_t list_format,
3960		  uint32_t addr_desc_index, uint8_t *data_ptr,
3961		  uint32_t dxfer_len, int minimum_cmd_size,
3962		  uint8_t sense_len, uint32_t timeout)
3963{
3964	uint8_t cdb_len;
3965
3966	/*
3967	 * These conditions allow using the 10 byte command.  Otherwise we
3968	 * need to use the 12 byte command.
3969	 */
3970	if ((minimum_cmd_size <= 10)
3971	 && (addr_desc_index == 0)
3972	 && (dxfer_len <= SRDD10_MAX_LENGTH)) {
3973		struct scsi_read_defect_data_10 *cdb10;
3974
3975		cdb10 = (struct scsi_read_defect_data_10 *)
3976			&csio->cdb_io.cdb_bytes;
3977
3978		cdb_len = sizeof(*cdb10);
3979		bzero(cdb10, cdb_len);
3980                cdb10->opcode = READ_DEFECT_DATA_10;
3981                cdb10->format = list_format;
3982                scsi_ulto2b(dxfer_len, cdb10->alloc_length);
3983	} else {
3984		struct scsi_read_defect_data_12 *cdb12;
3985
3986		cdb12 = (struct scsi_read_defect_data_12 *)
3987			&csio->cdb_io.cdb_bytes;
3988
3989		cdb_len = sizeof(*cdb12);
3990		bzero(cdb12, cdb_len);
3991                cdb12->opcode = READ_DEFECT_DATA_12;
3992                cdb12->format = list_format;
3993                scsi_ulto4b(dxfer_len, cdb12->alloc_length);
3994		scsi_ulto4b(addr_desc_index, cdb12->address_descriptor_index);
3995	}
3996
3997	cam_fill_csio(csio,
3998		      retries,
3999		      cbfcnp,
4000		      /*flags*/ CAM_DIR_IN,
4001		      tag_action,
4002		      data_ptr,
4003		      dxfer_len,
4004		      sense_len,
4005		      cdb_len,
4006		      timeout);
4007}
4008
4009void
4010scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
4011	      void (*cbfcnp)(struct cam_periph *, union ccb *),
4012	      u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
4013	      u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4014	      u_int32_t timeout)
4015{
4016	struct scsi_sanitize *scsi_cmd;
4017
4018	scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
4019	scsi_cmd->opcode = SANITIZE;
4020	scsi_cmd->byte2 = byte2;
4021	scsi_cmd->control = control;
4022	scsi_ulto2b(dxfer_len, scsi_cmd->length);
4023
4024	cam_fill_csio(csio,
4025		      retries,
4026		      cbfcnp,
4027		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
4028		      tag_action,
4029		      data_ptr,
4030		      dxfer_len,
4031		      sense_len,
4032		      sizeof(*scsi_cmd),
4033		      timeout);
4034}
4035
4036#endif /* _KERNEL */
4037