scsi_da.c revision 329319
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 329319 2018-02-15 16:31:35Z avg $");
31
32#include <sys/param.h>
33
34#ifdef _KERNEL
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/bio.h>
38#include <sys/sysctl.h>
39#include <sys/taskqueue.h>
40#include <sys/lock.h>
41#include <sys/mutex.h>
42#include <sys/conf.h>
43#include <sys/devicestat.h>
44#include <sys/eventhandler.h>
45#include <sys/malloc.h>
46#include <sys/cons.h>
47#include <sys/endian.h>
48#include <sys/proc.h>
49#include <geom/geom.h>
50#include <geom/geom_disk.h>
51#endif /* _KERNEL */
52
53#ifndef _KERNEL
54#include <stdio.h>
55#include <string.h>
56#endif /* _KERNEL */
57
58#include <cam/cam.h>
59#include <cam/cam_ccb.h>
60#include <cam/cam_periph.h>
61#include <cam/cam_xpt_periph.h>
62#include <cam/cam_sim.h>
63
64#include <cam/scsi/scsi_message.h>
65
66#ifndef _KERNEL
67#include <cam/scsi/scsi_da.h>
68#endif /* !_KERNEL */
69
70#ifdef _KERNEL
71typedef enum {
72	DA_STATE_PROBE_WP,
73	DA_STATE_PROBE_RC,
74	DA_STATE_PROBE_RC16,
75	DA_STATE_PROBE_LBP,
76	DA_STATE_PROBE_BLK_LIMITS,
77	DA_STATE_PROBE_BDC,
78	DA_STATE_PROBE_ATA,
79	DA_STATE_NORMAL
80} da_state;
81
82typedef enum {
83	DA_FLAG_PACK_INVALID	= 0x001,
84	DA_FLAG_NEW_PACK	= 0x002,
85	DA_FLAG_PACK_LOCKED	= 0x004,
86	DA_FLAG_PACK_REMOVABLE	= 0x008,
87	DA_FLAG_NEED_OTAG	= 0x020,
88	DA_FLAG_WAS_OTAG	= 0x040,
89	DA_FLAG_RETRY_UA	= 0x080,
90	DA_FLAG_OPEN		= 0x100,
91	DA_FLAG_SCTX_INIT	= 0x200,
92	DA_FLAG_CAN_RC16	= 0x400,
93	DA_FLAG_PROBED		= 0x800,
94	DA_FLAG_DIRTY		= 0x1000,
95	DA_FLAG_ANNOUNCED	= 0x2000
96} da_flags;
97
98typedef enum {
99	DA_Q_NONE		= 0x00,
100	DA_Q_NO_SYNC_CACHE	= 0x01,
101	DA_Q_NO_6_BYTE		= 0x02,
102	DA_Q_NO_PREVENT		= 0x04,
103	DA_Q_4K			= 0x08,
104	DA_Q_NO_RC16		= 0x10,
105	DA_Q_NO_UNMAP		= 0x20,
106	DA_Q_RETRY_BUSY		= 0x40
107} da_quirks;
108
109#define DA_Q_BIT_STRING		\
110	"\020"			\
111	"\001NO_SYNC_CACHE"	\
112	"\002NO_6_BYTE"		\
113	"\003NO_PREVENT"	\
114	"\0044K"		\
115	"\005NO_RC16"		\
116	"\006NO_UNMAP"		\
117	"\007RETRY_BUSY"
118
119typedef enum {
120	DA_CCB_PROBE_RC		= 0x01,
121	DA_CCB_PROBE_RC16	= 0x02,
122	DA_CCB_PROBE_LBP	= 0x03,
123	DA_CCB_PROBE_BLK_LIMITS	= 0x04,
124	DA_CCB_PROBE_BDC	= 0x05,
125	DA_CCB_PROBE_ATA	= 0x06,
126	DA_CCB_BUFFER_IO	= 0x07,
127	DA_CCB_DUMP		= 0x0A,
128	DA_CCB_DELETE		= 0x0B,
129 	DA_CCB_TUR		= 0x0C,
130	DA_CCB_PROBE_WP		= 0x12,
131	DA_CCB_TYPE_MASK	= 0x1F,
132	DA_CCB_RETRY_UA		= 0x20
133} da_ccb_state;
134
135/*
136 * Order here is important for method choice
137 *
138 * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
139 * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
140 * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
141 * import taking 5mins.
142 *
143 */
144typedef enum {
145	DA_DELETE_NONE,
146	DA_DELETE_DISABLE,
147	DA_DELETE_ATA_TRIM,
148	DA_DELETE_UNMAP,
149	DA_DELETE_WS16,
150	DA_DELETE_WS10,
151	DA_DELETE_ZERO,
152	DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
153	DA_DELETE_MAX = DA_DELETE_ZERO
154} da_delete_methods;
155
156typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
157			      struct bio *bp);
158static da_delete_func_t da_delete_trim;
159static da_delete_func_t da_delete_unmap;
160static da_delete_func_t da_delete_ws;
161
162static const void * da_delete_functions[] = {
163	NULL,
164	NULL,
165	da_delete_trim,
166	da_delete_unmap,
167	da_delete_ws,
168	da_delete_ws,
169	da_delete_ws
170};
171
172static const char *da_delete_method_names[] =
173    { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
174static const char *da_delete_method_desc[] =
175    { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
176      "WRITE SAME(10) with UNMAP", "ZERO" };
177
178/* Offsets into our private area for storing information */
179#define ccb_state	ppriv_field0
180#define ccb_bp		ppriv_ptr1
181
182struct disk_params {
183	u_int8_t  heads;
184	u_int32_t cylinders;
185	u_int8_t  secs_per_track;
186	u_int32_t secsize;	/* Number of bytes/sector */
187	u_int64_t sectors;	/* total number sectors */
188	u_int     stripesize;
189	u_int     stripeoffset;
190};
191
192#define UNMAP_RANGE_MAX		0xffffffff
193#define UNMAP_HEAD_SIZE		8
194#define UNMAP_RANGE_SIZE	16
195#define UNMAP_MAX_RANGES	2048 /* Protocol Max is 4095 */
196#define UNMAP_BUF_SIZE		((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
197				UNMAP_HEAD_SIZE)
198
199#define WS10_MAX_BLKS		0xffff
200#define WS16_MAX_BLKS		0xffffffff
201#define ATA_TRIM_MAX_RANGES	((UNMAP_BUF_SIZE / \
202	(ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
203
204struct da_softc {
205	struct	 bio_queue_head bio_queue;
206	struct	 bio_queue_head delete_queue;
207	struct	 bio_queue_head delete_run_queue;
208	LIST_HEAD(, ccb_hdr) pending_ccbs;
209	int	 tur;			/* TEST UNIT READY should be sent */
210	int	 refcount;		/* Active xpt_action() calls */
211	da_state state;
212	da_flags flags;
213	da_quirks quirks;
214	int	 sort_io_queue;
215	int	 minimum_cmd_size;
216	int	 error_inject;
217	int	 trim_max_ranges;
218	int	 delete_running;
219	int	 delete_available;	/* Delete methods possibly available */
220	u_int	 maxio;
221	uint32_t		unmap_max_ranges;
222	uint32_t		unmap_max_lba; /* Max LBAs in UNMAP req */
223	uint64_t		ws_max_blks;
224	da_delete_methods	delete_method_pref;
225	da_delete_methods	delete_method;
226	da_delete_func_t	*delete_func;
227	struct	 disk_params params;
228	struct	 disk *disk;
229	union	 ccb saved_ccb;
230	struct task		sysctl_task;
231	struct sysctl_ctx_list	sysctl_ctx;
232	struct sysctl_oid	*sysctl_tree;
233	struct callout		sendordered_c;
234	uint64_t wwpn;
235	uint8_t	 unmap_buf[UNMAP_BUF_SIZE];
236	struct scsi_read_capacity_data_long rcaplong;
237	struct callout		mediapoll_c;
238};
239
240#define dadeleteflag(softc, delete_method, enable)			\
241	if (enable) {							\
242		softc->delete_available |= (1 << delete_method);	\
243	} else {							\
244		softc->delete_available &= ~(1 << delete_method);	\
245	}
246
247struct da_quirk_entry {
248	struct scsi_inquiry_pattern inq_pat;
249	da_quirks quirks;
250};
251
252static const char quantum[] = "QUANTUM";
253static const char microp[] = "MICROP";
254
255static struct da_quirk_entry da_quirk_table[] =
256{
257	/* SPI, FC devices */
258	{
259		/*
260		 * Fujitsu M2513A MO drives.
261		 * Tested devices: M2513A2 firmware versions 1200 & 1300.
262		 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
263		 * Reported by: W.Scholten <whs@xs4all.nl>
264		 */
265		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
266		/*quirks*/ DA_Q_NO_SYNC_CACHE
267	},
268	{
269		/* See above. */
270		{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
271		/*quirks*/ DA_Q_NO_SYNC_CACHE
272	},
273	{
274		/*
275		 * This particular Fujitsu drive doesn't like the
276		 * synchronize cache command.
277		 * Reported by: Tom Jackson <toj@gorilla.net>
278		 */
279		{T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
280		/*quirks*/ DA_Q_NO_SYNC_CACHE
281	},
282	{
283		/*
284		 * This drive doesn't like the synchronize cache command
285		 * either.  Reported by: Matthew Jacob <mjacob@feral.com>
286		 * in NetBSD PR kern/6027, August 24, 1998.
287		 */
288		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
289		/*quirks*/ DA_Q_NO_SYNC_CACHE
290	},
291	{
292		/*
293		 * This drive doesn't like the synchronize cache command
294		 * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
295		 * (PR 8882).
296		 */
297		{T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
298		/*quirks*/ DA_Q_NO_SYNC_CACHE
299	},
300	{
301		/*
302		 * Doesn't like the synchronize cache command.
303		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
304		 */
305		{T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
306		/*quirks*/ DA_Q_NO_SYNC_CACHE
307	},
308	{
309		/*
310		 * Doesn't like the synchronize cache command.
311		 * Reported by: Blaz Zupan <blaz@gold.amis.net>
312		 */
313		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
314		/*quirks*/ DA_Q_NO_SYNC_CACHE
315	},
316	{
317		/*
318		 * Doesn't like the synchronize cache command.
319		 */
320		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
321		/*quirks*/ DA_Q_NO_SYNC_CACHE
322	},
323	{
324		/*
325		 * Doesn't like the synchronize cache command.
326		 * Reported by: walter@pelissero.de
327		 */
328		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
329		/*quirks*/ DA_Q_NO_SYNC_CACHE
330	},
331	{
332		/*
333		 * Doesn't work correctly with 6 byte reads/writes.
334		 * Returns illegal request, and points to byte 9 of the
335		 * 6-byte CDB.
336		 * Reported by:  Adam McDougall <bsdx@spawnet.com>
337		 */
338		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
339		/*quirks*/ DA_Q_NO_6_BYTE
340	},
341	{
342		/* See above. */
343		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
344		/*quirks*/ DA_Q_NO_6_BYTE
345	},
346	{
347		/*
348		 * Doesn't like the synchronize cache command.
349		 * Reported by: walter@pelissero.de
350		 */
351		{T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
352		/*quirks*/ DA_Q_NO_SYNC_CACHE
353	},
354	{
355		/*
356		 * The CISS RAID controllers do not support SYNC_CACHE
357		 */
358		{T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
359		/*quirks*/ DA_Q_NO_SYNC_CACHE
360	},
361	{
362		/*
363		 * The STEC SSDs sometimes hang on UNMAP.
364		 */
365		{T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
366		/*quirks*/ DA_Q_NO_UNMAP
367	},
368	{
369		/*
370		 * VMware returns BUSY status when storage has transient
371		 * connectivity problems, so better wait.
372		 */
373		{T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*"},
374		/*quirks*/ DA_Q_RETRY_BUSY
375	},
376	/* USB mass storage devices supported by umass(4) */
377	{
378		/*
379		 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
380		 * PR: kern/51675
381		 */
382		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
383		/*quirks*/ DA_Q_NO_SYNC_CACHE
384	},
385	{
386		/*
387		 * Power Quotient Int. (PQI) USB flash key
388		 * PR: kern/53067
389		 */
390		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
391		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
392	},
393 	{
394 		/*
395 		 * Creative Nomad MUVO mp3 player (USB)
396 		 * PR: kern/53094
397 		 */
398 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
399 		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
400 	},
401	{
402		/*
403		 * Jungsoft NEXDISK USB flash key
404		 * PR: kern/54737
405		 */
406		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
407		/*quirks*/ DA_Q_NO_SYNC_CACHE
408	},
409	{
410		/*
411		 * FreeDik USB Mini Data Drive
412		 * PR: kern/54786
413		 */
414		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
415		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
416	},
417	{
418		/*
419		 * Sigmatel USB Flash MP3 Player
420		 * PR: kern/57046
421		 */
422		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
423		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
424	},
425	{
426		/*
427		 * Neuros USB Digital Audio Computer
428		 * PR: kern/63645
429		 */
430		{T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
431		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
432	},
433	{
434		/*
435		 * SEAGRAND NP-900 MP3 Player
436		 * PR: kern/64563
437		 */
438		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
439		/*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
440	},
441	{
442		/*
443		 * iRiver iFP MP3 player (with UMS Firmware)
444		 * PR: kern/54881, i386/63941, kern/66124
445		 */
446		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
447		/*quirks*/ DA_Q_NO_SYNC_CACHE
448 	},
449	{
450		/*
451		 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
452		 * PR: kern/70158
453		 */
454		{T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
455		/*quirks*/ DA_Q_NO_SYNC_CACHE
456	},
457	{
458		/*
459		 * ZICPlay USB MP3 Player with FM
460		 * PR: kern/75057
461		 */
462		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
463		/*quirks*/ DA_Q_NO_SYNC_CACHE
464	},
465	{
466		/*
467		 * TEAC USB floppy mechanisms
468		 */
469		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
470		/*quirks*/ DA_Q_NO_SYNC_CACHE
471	},
472	{
473		/*
474		 * Kingston DataTraveler II+ USB Pen-Drive.
475		 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
476		 */
477		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
478		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
479	},
480	{
481		/*
482		 * USB DISK Pro PMAP
483		 * Reported by: jhs
484		 * PR: usb/96381
485		 */
486		{T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
487		/*quirks*/ DA_Q_NO_SYNC_CACHE
488	},
489	{
490		/*
491		 * Motorola E398 Mobile Phone (TransFlash memory card).
492		 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
493		 * PR: usb/89889
494		 */
495		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
496		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
497	},
498	{
499		/*
500		 * Qware BeatZkey! Pro
501		 * PR: usb/79164
502		 */
503		{T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
504		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
505	},
506	{
507		/*
508		 * Time DPA20B 1GB MP3 Player
509		 * PR: usb/81846
510		 */
511		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
512		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
513	},
514	{
515		/*
516		 * Samsung USB key 128Mb
517		 * PR: usb/90081
518		 */
519		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
520		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
521	},
522	{
523		/*
524		 * Kingston DataTraveler 2.0 USB Flash memory.
525		 * PR: usb/89196
526		 */
527		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
528		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
529	},
530	{
531		/*
532		 * Creative MUVO Slim mp3 player (USB)
533		 * PR: usb/86131
534		 */
535		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
536		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
537		},
538	{
539		/*
540		 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
541		 * PR: usb/80487
542		 */
543		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
544		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
545	},
546	{
547		/*
548		 * SanDisk Micro Cruzer 128MB
549		 * PR: usb/75970
550		 */
551		{T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
552		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
553	},
554	{
555		/*
556		 * TOSHIBA TransMemory USB sticks
557		 * PR: kern/94660
558		 */
559		{T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
560		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
561	},
562	{
563		/*
564		 * PNY USB 3.0 Flash Drives
565		*/
566		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
567		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
568	},
569	{
570		/*
571		 * PNY USB Flash keys
572		 * PR: usb/75578, usb/72344, usb/65436
573		 */
574		{T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
575		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
576	},
577	{
578		/*
579		 * Genesys 6-in-1 Card Reader
580		 * PR: usb/94647
581		 */
582		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
583		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
584	},
585	{
586		/*
587		 * Rekam Digital CAMERA
588		 * PR: usb/98713
589		 */
590		{T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
591		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
592	},
593	{
594		/*
595		 * iRiver H10 MP3 player
596		 * PR: usb/102547
597		 */
598		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
599		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
600	},
601	{
602		/*
603		 * iRiver U10 MP3 player
604		 * PR: usb/92306
605		 */
606		{T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
607		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
608	},
609	{
610		/*
611		 * X-Micro Flash Disk
612		 * PR: usb/96901
613		 */
614		{T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
615		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
616	},
617	{
618		/*
619		 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
620		 * PR: usb/96546
621		 */
622		{T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
623		"1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
624	},
625	{
626		/*
627		 * Denver MP3 player
628		 * PR: usb/107101
629		 */
630		{T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
631		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
632	},
633	{
634		/*
635		 * Philips USB Key Audio KEY013
636		 * PR: usb/68412
637		 */
638		{T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
639		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
640	},
641	{
642		/*
643		 * JNC MP3 Player
644		 * PR: usb/94439
645		 */
646		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
647		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
648	},
649	{
650		/*
651		 * SAMSUNG MP0402H
652		 * PR: usb/108427
653		 */
654		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
655		/*quirks*/ DA_Q_NO_SYNC_CACHE
656	},
657	{
658		/*
659		 * I/O Magic USB flash - Giga Bank
660		 * PR: usb/108810
661		 */
662		{T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
663		/*quirks*/ DA_Q_NO_SYNC_CACHE
664	},
665	{
666		/*
667		 * JoyFly 128mb USB Flash Drive
668		 * PR: 96133
669		 */
670		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
671		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
672	},
673	{
674		/*
675		 * ChipsBnk usb stick
676		 * PR: 103702
677		 */
678		{T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
679		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
680	},
681	{
682		/*
683		 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
684		 * PR: 129858
685		 */
686		{T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
687		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
688	},
689	{
690		/*
691		 * Samsung YP-U3 mp3-player
692		 * PR: 125398
693		 */
694		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
695		 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
696	},
697	{
698		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
699		 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
700	},
701	{
702		/*
703		 * Sony Cyber-Shot DSC cameras
704		 * PR: usb/137035
705		 */
706		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
707		/*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
708	},
709	{
710		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
711		 "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
712	},
713	{
714		/* At least several Transcent USB sticks lie on RC16. */
715		{T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
716		 "*"}, /*quirks*/ DA_Q_NO_RC16
717	},
718	{
719		/*
720		 * I-O Data USB Flash Disk
721		 * PR: usb/211716
722		 */
723		{T_DIRECT, SIP_MEDIA_REMOVABLE, "I-O DATA", "USB Flash Disk*",
724		 "*"}, /*quirks*/ DA_Q_NO_RC16
725	},
726	/* ATA/SATA devices over SAS/USB/... */
727	{
728		/* Hitachi Advanced Format (4k) drives */
729		{ T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
730		/*quirks*/DA_Q_4K
731	},
732	{
733		/* Samsung Advanced Format (4k) drives */
734		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
735		/*quirks*/DA_Q_4K
736	},
737	{
738		/* Samsung Advanced Format (4k) drives */
739		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
740		/*quirks*/DA_Q_4K
741	},
742	{
743		/* Samsung Advanced Format (4k) drives */
744		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
745		/*quirks*/DA_Q_4K
746	},
747	{
748		/* Samsung Advanced Format (4k) drives */
749		{ T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
750		/*quirks*/DA_Q_4K
751	},
752	{
753		/* Seagate Barracuda Green Advanced Format (4k) drives */
754		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
755		/*quirks*/DA_Q_4K
756	},
757	{
758		/* Seagate Barracuda Green Advanced Format (4k) drives */
759		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
760		/*quirks*/DA_Q_4K
761	},
762	{
763		/* Seagate Barracuda Green Advanced Format (4k) drives */
764		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
765		/*quirks*/DA_Q_4K
766	},
767	{
768		/* Seagate Barracuda Green Advanced Format (4k) drives */
769		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
770		/*quirks*/DA_Q_4K
771	},
772	{
773		/* Seagate Barracuda Green Advanced Format (4k) drives */
774		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
775		/*quirks*/DA_Q_4K
776	},
777	{
778		/* Seagate Barracuda Green Advanced Format (4k) drives */
779		{ T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
780		/*quirks*/DA_Q_4K
781	},
782	{
783		/* Seagate Momentus Advanced Format (4k) drives */
784		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
785		/*quirks*/DA_Q_4K
786	},
787	{
788		/* Seagate Momentus Advanced Format (4k) drives */
789		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
790		/*quirks*/DA_Q_4K
791	},
792	{
793		/* Seagate Momentus Advanced Format (4k) drives */
794		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
795		/*quirks*/DA_Q_4K
796	},
797	{
798		/* Seagate Momentus Advanced Format (4k) drives */
799		{ T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
800		/*quirks*/DA_Q_4K
801	},
802	{
803		/* Seagate Momentus Advanced Format (4k) drives */
804		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
805		/*quirks*/DA_Q_4K
806	},
807	{
808		/* Seagate Momentus Advanced Format (4k) drives */
809		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
810		/*quirks*/DA_Q_4K
811	},
812	{
813		/* Seagate Momentus Advanced Format (4k) drives */
814		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
815		/*quirks*/DA_Q_4K
816	},
817	{
818		/* Seagate Momentus Advanced Format (4k) drives */
819		{ T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
820		/*quirks*/DA_Q_4K
821	},
822	{
823		/* Seagate Momentus Advanced Format (4k) drives */
824		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
825		/*quirks*/DA_Q_4K
826	},
827	{
828		/* Seagate Momentus Advanced Format (4k) drives */
829		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
830		/*quirks*/DA_Q_4K
831	},
832	{
833		/* Seagate Momentus Advanced Format (4k) drives */
834		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
835		/*quirks*/DA_Q_4K
836	},
837	{
838		/* Seagate Momentus Advanced Format (4k) drives */
839		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
840		/*quirks*/DA_Q_4K
841	},
842	{
843		/* Seagate Momentus Advanced Format (4k) drives */
844		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
845		/*quirks*/DA_Q_4K
846	},
847	{
848		/* Seagate Momentus Advanced Format (4k) drives */
849		{ T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
850		/*quirks*/DA_Q_4K
851	},
852	{
853		/* Seagate Momentus Thin Advanced Format (4k) drives */
854		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
855		/*quirks*/DA_Q_4K
856	},
857	{
858		/* Seagate Momentus Thin Advanced Format (4k) drives */
859		{ T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
860		/*quirks*/DA_Q_4K
861	},
862	{
863		/* WDC Caviar Green Advanced Format (4k) drives */
864		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
865		/*quirks*/DA_Q_4K
866	},
867	{
868		/* WDC Caviar Green Advanced Format (4k) drives */
869		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
870		/*quirks*/DA_Q_4K
871	},
872	{
873		/* WDC Caviar Green Advanced Format (4k) drives */
874		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
875		/*quirks*/DA_Q_4K
876	},
877	{
878		/* WDC Caviar Green Advanced Format (4k) drives */
879		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
880		/*quirks*/DA_Q_4K
881	},
882	{
883		/* WDC Caviar Green Advanced Format (4k) drives */
884		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
885		/*quirks*/DA_Q_4K
886	},
887	{
888		/* WDC Caviar Green Advanced Format (4k) drives */
889		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
890		/*quirks*/DA_Q_4K
891	},
892	{
893		/* WDC Caviar Green Advanced Format (4k) drives */
894		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
895		/*quirks*/DA_Q_4K
896	},
897	{
898		/* WDC Caviar Green Advanced Format (4k) drives */
899		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
900		/*quirks*/DA_Q_4K
901	},
902	{
903		/* WDC Scorpio Black Advanced Format (4k) drives */
904		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
905		/*quirks*/DA_Q_4K
906	},
907	{
908		/* WDC Scorpio Black Advanced Format (4k) drives */
909		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
910		/*quirks*/DA_Q_4K
911	},
912	{
913		/* WDC Scorpio Black Advanced Format (4k) drives */
914		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
915		/*quirks*/DA_Q_4K
916	},
917	{
918		/* WDC Scorpio Black Advanced Format (4k) drives */
919		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
920		/*quirks*/DA_Q_4K
921	},
922	{
923		/* WDC Scorpio Blue Advanced Format (4k) drives */
924		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
925		/*quirks*/DA_Q_4K
926	},
927	{
928		/* WDC Scorpio Blue Advanced Format (4k) drives */
929		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
930		/*quirks*/DA_Q_4K
931	},
932	{
933		/* WDC Scorpio Blue Advanced Format (4k) drives */
934		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
935		/*quirks*/DA_Q_4K
936	},
937	{
938		/* WDC Scorpio Blue Advanced Format (4k) drives */
939		{ T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
940		/*quirks*/DA_Q_4K
941	},
942	{
943		/*
944		 * Olympus FE-210 camera
945		 */
946		{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
947		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
948	},
949	{
950		/*
951		 * LG UP3S MP3 player
952		 */
953		{T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
954		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
955	},
956	{
957		/*
958		 * Laser MP3-2GA13 MP3 player
959		 */
960		{T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
961		"*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
962	},
963	{
964		/*
965		 * LaCie external 250GB Hard drive des by Porsche
966		 * Submitted by: Ben Stuyts <ben@altesco.nl>
967		 * PR: 121474
968		 */
969		{T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
970		/*quirks*/ DA_Q_NO_SYNC_CACHE
971	},
972	/* SATA SSDs */
973	{
974		/*
975		 * Corsair Force 2 SSDs
976		 * 4k optimised & trim only works in 4k requests + 4k aligned
977		 */
978		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
979		/*quirks*/DA_Q_4K
980	},
981	{
982		/*
983		 * Corsair Force 3 SSDs
984		 * 4k optimised & trim only works in 4k requests + 4k aligned
985		 */
986		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
987		/*quirks*/DA_Q_4K
988	},
989        {
990		/*
991		 * Corsair Neutron GTX SSDs
992		 * 4k optimised & trim only works in 4k requests + 4k aligned
993		 */
994		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
995		/*quirks*/DA_Q_4K
996	},
997	{
998		/*
999		 * Corsair Force GT & GS SSDs
1000		 * 4k optimised & trim only works in 4k requests + 4k aligned
1001		 */
1002		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
1003		/*quirks*/DA_Q_4K
1004	},
1005	{
1006		/*
1007		 * Crucial M4 SSDs
1008		 * 4k optimised & trim only works in 4k requests + 4k aligned
1009		 */
1010		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
1011		/*quirks*/DA_Q_4K
1012	},
1013	{
1014		/*
1015		 * Crucial RealSSD C300 SSDs
1016		 * 4k optimised
1017		 */
1018		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
1019		"*" }, /*quirks*/DA_Q_4K
1020	},
1021	{
1022		/*
1023		 * Intel 320 Series SSDs
1024		 * 4k optimised & trim only works in 4k requests + 4k aligned
1025		 */
1026		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1027		/*quirks*/DA_Q_4K
1028	},
1029	{
1030		/*
1031		 * Intel 330 Series SSDs
1032		 * 4k optimised & trim only works in 4k requests + 4k aligned
1033		 */
1034		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1035		/*quirks*/DA_Q_4K
1036	},
1037	{
1038		/*
1039		 * Intel 510 Series SSDs
1040		 * 4k optimised & trim only works in 4k requests + 4k aligned
1041		 */
1042		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1043		/*quirks*/DA_Q_4K
1044	},
1045	{
1046		/*
1047		 * Intel 520 Series SSDs
1048		 * 4k optimised & trim only works in 4k requests + 4k aligned
1049		 */
1050		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1051		/*quirks*/DA_Q_4K
1052	},
1053	{
1054		/*
1055		 * Intel X25-M Series SSDs
1056		 * 4k optimised & trim only works in 4k requests + 4k aligned
1057		 */
1058		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1059		/*quirks*/DA_Q_4K
1060	},
1061	{
1062		/*
1063		 * Kingston E100 Series SSDs
1064		 * 4k optimised & trim only works in 4k requests + 4k aligned
1065		 */
1066		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1067		/*quirks*/DA_Q_4K
1068	},
1069	{
1070		/*
1071		 * Kingston HyperX 3k SSDs
1072		 * 4k optimised & trim only works in 4k requests + 4k aligned
1073		 */
1074		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1075		/*quirks*/DA_Q_4K
1076	},
1077	{
1078		/*
1079		 * Marvell SSDs (entry taken from OpenSolaris)
1080		 * 4k optimised & trim only works in 4k requests + 4k aligned
1081		 */
1082		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1083		/*quirks*/DA_Q_4K
1084	},
1085	{
1086		/*
1087		 * OCZ Agility 2 SSDs
1088		 * 4k optimised & trim only works in 4k requests + 4k aligned
1089		 */
1090		{ T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1091		/*quirks*/DA_Q_4K
1092	},
1093	{
1094		/*
1095		 * OCZ Agility 3 SSDs
1096		 * 4k optimised & trim only works in 4k requests + 4k aligned
1097		 */
1098		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1099		/*quirks*/DA_Q_4K
1100	},
1101	{
1102		/*
1103		 * OCZ Deneva R Series SSDs
1104		 * 4k optimised & trim only works in 4k requests + 4k aligned
1105		 */
1106		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1107		/*quirks*/DA_Q_4K
1108	},
1109	{
1110		/*
1111		 * OCZ Vertex 2 SSDs (inc pro series)
1112		 * 4k optimised & trim only works in 4k requests + 4k aligned
1113		 */
1114		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1115		/*quirks*/DA_Q_4K
1116	},
1117	{
1118		/*
1119		 * OCZ Vertex 3 SSDs
1120		 * 4k optimised & trim only works in 4k requests + 4k aligned
1121		 */
1122		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1123		/*quirks*/DA_Q_4K
1124	},
1125	{
1126		/*
1127		 * OCZ Vertex 4 SSDs
1128		 * 4k optimised & trim only works in 4k requests + 4k aligned
1129		 */
1130		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1131		/*quirks*/DA_Q_4K
1132	},
1133	{
1134		/*
1135		 * Samsung 830 Series SSDs
1136		 * 4k optimised & trim only works in 4k requests + 4k aligned
1137		 */
1138		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1139		/*quirks*/DA_Q_4K
1140	},
1141	{
1142		/*
1143		 * Samsung 840 SSDs
1144		 * 4k optimised & trim only works in 4k requests + 4k aligned
1145		 */
1146		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1147		/*quirks*/DA_Q_4K
1148	},
1149	{
1150		/*
1151		 * Samsung 850 SSDs
1152		 * 4k optimised & trim only works in 4k requests + 4k aligned
1153		 */
1154		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
1155		/*quirks*/DA_Q_4K
1156	},
1157	{
1158		/*
1159		 * Samsung 843T Series SSDs (MZ7WD*)
1160		 * Samsung PM851 Series SSDs (MZ7TE*)
1161		 * Samsung PM853T Series SSDs (MZ7GE*)
1162		 * Samsung SM863 Series SSDs (MZ7KM*)
1163		 * 4k optimised
1164		 */
1165		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7*", "*" },
1166		/*quirks*/DA_Q_4K
1167	},
1168	{
1169		/*
1170		 * SuperTalent TeraDrive CT SSDs
1171		 * 4k optimised & trim only works in 4k requests + 4k aligned
1172		 */
1173		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1174		/*quirks*/DA_Q_4K
1175	},
1176	{
1177		/*
1178		 * XceedIOPS SATA SSDs
1179		 * 4k optimised
1180		 */
1181		{ T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1182		/*quirks*/DA_Q_4K
1183	},
1184	{
1185		/*
1186		 * Hama Innostor USB-Stick
1187		 */
1188		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "Innostor", "Innostor*", "*" },
1189		/*quirks*/DA_Q_NO_RC16
1190	},
1191	{
1192		/*
1193		 * MX-ES USB Drive by Mach Xtreme
1194		 */
1195		{ T_DIRECT, SIP_MEDIA_REMOVABLE, "MX", "MXUB3*", "*"},
1196		/*quirks*/DA_Q_NO_RC16
1197	},
1198};
1199
1200static	disk_strategy_t	dastrategy;
1201static	dumper_t	dadump;
1202static	periph_init_t	dainit;
1203static	void		daasync(void *callback_arg, u_int32_t code,
1204				struct cam_path *path, void *arg);
1205static	void		dasysctlinit(void *context, int pending);
1206static	int		dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1207static	int		dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1208static	int		dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1209static	void		dadeletemethodset(struct da_softc *softc,
1210					  da_delete_methods delete_method);
1211static	off_t		dadeletemaxsize(struct da_softc *softc,
1212					da_delete_methods delete_method);
1213static	void		dadeletemethodchoose(struct da_softc *softc,
1214					     da_delete_methods default_method);
1215static	void		daprobedone(struct cam_periph *periph, union ccb *ccb);
1216
1217static	periph_ctor_t	daregister;
1218static	periph_dtor_t	dacleanup;
1219static	periph_start_t	dastart;
1220static	periph_oninv_t	daoninvalidate;
1221static	void		dadone(struct cam_periph *periph,
1222			       union ccb *done_ccb);
1223static  int		daerror(union ccb *ccb, u_int32_t cam_flags,
1224				u_int32_t sense_flags);
1225static void		daprevent(struct cam_periph *periph, int action);
1226static void		dareprobe(struct cam_periph *periph);
1227static void		dasetgeom(struct cam_periph *periph, uint32_t block_len,
1228				  uint64_t maxsector,
1229				  struct scsi_read_capacity_data_long *rcaplong,
1230				  size_t rcap_size);
1231static timeout_t	dasendorderedtag;
1232static void		dashutdown(void *arg, int howto);
1233static timeout_t	damediapoll;
1234
1235#ifndef	DA_DEFAULT_POLL_PERIOD
1236#define	DA_DEFAULT_POLL_PERIOD	3
1237#endif
1238
1239#ifndef DA_DEFAULT_TIMEOUT
1240#define DA_DEFAULT_TIMEOUT 60	/* Timeout in seconds */
1241#endif
1242
1243#ifndef	DA_DEFAULT_RETRY
1244#define	DA_DEFAULT_RETRY	4
1245#endif
1246
1247#ifndef	DA_DEFAULT_SEND_ORDERED
1248#define	DA_DEFAULT_SEND_ORDERED	1
1249#endif
1250
1251#define DA_SIO (softc->sort_io_queue >= 0 ? \
1252    softc->sort_io_queue : cam_sort_io_queues)
1253
1254static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1255static int da_retry_count = DA_DEFAULT_RETRY;
1256static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1257static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1258
1259static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1260            "CAM Direct Access Disk driver");
1261SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
1262           &da_poll_period, 0, "Media polling period in seconds");
1263TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
1264SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
1265           &da_retry_count, 0, "Normal I/O retry count");
1266TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
1267SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
1268           &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1269TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
1270SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
1271           &da_send_ordered, 0, "Send Ordered Tags");
1272TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
1273
1274/*
1275 * DA_ORDEREDTAG_INTERVAL determines how often, relative
1276 * to the default timeout, we check to see whether an ordered
1277 * tagged transaction is appropriate to prevent simple tag
1278 * starvation.  Since we'd like to ensure that there is at least
1279 * 1/2 of the timeout length left for a starved transaction to
1280 * complete after we've sent an ordered tag, we must poll at least
1281 * four times in every timeout period.  This takes care of the worst
1282 * case where a starved transaction starts during an interval that
1283 * meets the requirement "don't send an ordered tag" test so it takes
1284 * us two intervals to determine that a tag must be sent.
1285 */
1286#ifndef DA_ORDEREDTAG_INTERVAL
1287#define DA_ORDEREDTAG_INTERVAL 4
1288#endif
1289
1290static struct periph_driver dadriver =
1291{
1292	dainit, "da",
1293	TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1294};
1295
1296PERIPHDRIVER_DECLARE(da, dadriver);
1297
1298static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1299
1300static int
1301daopen(struct disk *dp)
1302{
1303	struct cam_periph *periph;
1304	struct da_softc *softc;
1305	int error;
1306
1307	periph = (struct cam_periph *)dp->d_drv1;
1308	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1309		return (ENXIO);
1310	}
1311
1312	cam_periph_lock(periph);
1313	if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1314		cam_periph_unlock(periph);
1315		cam_periph_release(periph);
1316		return (error);
1317	}
1318
1319	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1320	    ("daopen\n"));
1321
1322	softc = (struct da_softc *)periph->softc;
1323	dareprobe(periph);
1324
1325	/* Wait for the disk size update.  */
1326	error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1327	    "dareprobe", 0);
1328	if (error != 0)
1329		xpt_print(periph->path, "unable to retrieve capacity data\n");
1330
1331	if (periph->flags & CAM_PERIPH_INVALID)
1332		error = ENXIO;
1333
1334	if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1335	    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1336		daprevent(periph, PR_PREVENT);
1337
1338	if (error == 0) {
1339		softc->flags &= ~DA_FLAG_PACK_INVALID;
1340		softc->flags |= DA_FLAG_OPEN;
1341	}
1342
1343	cam_periph_unhold(periph);
1344	cam_periph_unlock(periph);
1345
1346	if (error != 0)
1347		cam_periph_release(periph);
1348
1349	return (error);
1350}
1351
1352static int
1353daclose(struct disk *dp)
1354{
1355	struct	cam_periph *periph;
1356	struct	da_softc *softc;
1357	union	ccb *ccb;
1358	int error;
1359
1360	periph = (struct cam_periph *)dp->d_drv1;
1361	softc = (struct da_softc *)periph->softc;
1362	cam_periph_lock(periph);
1363	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1364	    ("daclose\n"));
1365
1366	if (cam_periph_hold(periph, PRIBIO) == 0) {
1367
1368		/* Flush disk cache. */
1369		if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1370		    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1371		    (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1372			ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1373			scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1374			    /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1375			    /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1376			    5 * 60 * 1000);
1377			error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1378			    /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1379			    softc->disk->d_devstat);
1380			softc->flags &= ~DA_FLAG_DIRTY;
1381			xpt_release_ccb(ccb);
1382		}
1383
1384		/* Allow medium removal. */
1385		if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1386		    (softc->quirks & DA_Q_NO_PREVENT) == 0)
1387			daprevent(periph, PR_ALLOW);
1388
1389		cam_periph_unhold(periph);
1390	}
1391
1392	/*
1393	 * If we've got removeable media, mark the blocksize as
1394	 * unavailable, since it could change when new media is
1395	 * inserted.
1396	 */
1397	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1398		softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1399
1400	softc->flags &= ~DA_FLAG_OPEN;
1401	while (softc->refcount != 0)
1402		cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1403	cam_periph_unlock(periph);
1404	cam_periph_release(periph);
1405	return (0);
1406}
1407
1408static void
1409daschedule(struct cam_periph *periph)
1410{
1411	struct da_softc *softc = (struct da_softc *)periph->softc;
1412
1413	if (softc->state != DA_STATE_NORMAL)
1414		return;
1415
1416	/* Check if we have more work to do. */
1417	if (bioq_first(&softc->bio_queue) ||
1418	    (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1419	    softc->tur) {
1420		xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1421	}
1422}
1423
1424/*
1425 * Actually translate the requested transfer into one the physical driver
1426 * can understand.  The transfer is described by a buf and will include
1427 * only one physical transfer.
1428 */
1429static void
1430dastrategy(struct bio *bp)
1431{
1432	struct cam_periph *periph;
1433	struct da_softc *softc;
1434
1435	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1436	softc = (struct da_softc *)periph->softc;
1437
1438	cam_periph_lock(periph);
1439
1440	/*
1441	 * If the device has been made invalid, error out
1442	 */
1443	if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1444		cam_periph_unlock(periph);
1445		biofinish(bp, NULL, ENXIO);
1446		return;
1447	}
1448
1449	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1450
1451	/*
1452	 * Place it in the queue of disk activities for this disk
1453	 */
1454	if (bp->bio_cmd == BIO_DELETE) {
1455		bioq_disksort(&softc->delete_queue, bp);
1456	} else if (DA_SIO) {
1457		bioq_disksort(&softc->bio_queue, bp);
1458	} else {
1459		bioq_insert_tail(&softc->bio_queue, bp);
1460	}
1461
1462	/*
1463	 * Schedule ourselves for performing the work.
1464	 */
1465	daschedule(periph);
1466	cam_periph_unlock(periph);
1467
1468	return;
1469}
1470
1471static int
1472dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1473{
1474	struct	    cam_periph *periph;
1475	struct	    da_softc *softc;
1476	u_int	    secsize;
1477	struct	    ccb_scsiio csio;
1478	struct	    disk *dp;
1479	int	    error = 0;
1480
1481	dp = arg;
1482	periph = dp->d_drv1;
1483	softc = (struct da_softc *)periph->softc;
1484	cam_periph_lock(periph);
1485	secsize = softc->params.secsize;
1486
1487	if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1488		cam_periph_unlock(periph);
1489		return (ENXIO);
1490	}
1491
1492	if (length > 0) {
1493		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1494		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1495		scsi_read_write(&csio,
1496				/*retries*/0,
1497				dadone,
1498				MSG_ORDERED_Q_TAG,
1499				/*read*/SCSI_RW_WRITE,
1500				/*byte2*/0,
1501				/*minimum_cmd_size*/ softc->minimum_cmd_size,
1502				offset / secsize,
1503				length / secsize,
1504				/*data_ptr*/(u_int8_t *) virtual,
1505				/*dxfer_len*/length,
1506				/*sense_len*/SSD_FULL_SIZE,
1507				da_default_timeout * 1000);
1508		xpt_polled_action((union ccb *)&csio);
1509
1510		error = cam_periph_error((union ccb *)&csio,
1511		    0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1512		if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1513			cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1514			    /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1515		if (error != 0)
1516			printf("Aborting dump due to I/O error.\n");
1517		cam_periph_unlock(periph);
1518		return (error);
1519	}
1520
1521	/*
1522	 * Sync the disk cache contents to the physical media.
1523	 */
1524	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1525
1526		xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1527		csio.ccb_h.ccb_state = DA_CCB_DUMP;
1528		scsi_synchronize_cache(&csio,
1529				       /*retries*/0,
1530				       /*cbfcnp*/dadone,
1531				       MSG_SIMPLE_Q_TAG,
1532				       /*begin_lba*/0,/* Cover the whole disk */
1533				       /*lb_count*/0,
1534				       SSD_FULL_SIZE,
1535				       5 * 60 * 1000);
1536		xpt_polled_action((union ccb *)&csio);
1537
1538		error = cam_periph_error((union ccb *)&csio,
1539		    0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1540		if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1541			cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1542			    /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1543		if (error != 0)
1544			xpt_print(periph->path, "Synchronize cache failed\n");
1545	}
1546	cam_periph_unlock(periph);
1547	return (error);
1548}
1549
1550static int
1551dagetattr(struct bio *bp)
1552{
1553	int ret;
1554	struct cam_periph *periph;
1555
1556	periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1557	cam_periph_lock(periph);
1558	ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1559	    periph->path);
1560	cam_periph_unlock(periph);
1561	if (ret == 0)
1562		bp->bio_completed = bp->bio_length;
1563	return ret;
1564}
1565
1566static void
1567dainit(void)
1568{
1569	cam_status status;
1570
1571	/*
1572	 * Install a global async callback.  This callback will
1573	 * receive async callbacks like "new device found".
1574	 */
1575	status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1576
1577	if (status != CAM_REQ_CMP) {
1578		printf("da: Failed to attach master async callback "
1579		       "due to status 0x%x!\n", status);
1580	} else if (da_send_ordered) {
1581
1582		/* Register our shutdown event handler */
1583		if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1584					   NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1585		    printf("dainit: shutdown event registration failed!\n");
1586	}
1587}
1588
1589/*
1590 * Callback from GEOM, called when it has finished cleaning up its
1591 * resources.
1592 */
1593static void
1594dadiskgonecb(struct disk *dp)
1595{
1596	struct cam_periph *periph;
1597
1598	periph = (struct cam_periph *)dp->d_drv1;
1599	cam_periph_release(periph);
1600}
1601
1602static void
1603daoninvalidate(struct cam_periph *periph)
1604{
1605	struct da_softc *softc;
1606
1607	softc = (struct da_softc *)periph->softc;
1608
1609	/*
1610	 * De-register any async callbacks.
1611	 */
1612	xpt_register_async(0, daasync, periph, periph->path);
1613
1614	softc->flags |= DA_FLAG_PACK_INVALID;
1615
1616	/*
1617	 * Return all queued I/O with ENXIO.
1618	 * XXX Handle any transactions queued to the card
1619	 *     with XPT_ABORT_CCB.
1620	 */
1621	bioq_flush(&softc->bio_queue, NULL, ENXIO);
1622	bioq_flush(&softc->delete_queue, NULL, ENXIO);
1623
1624	/*
1625	 * Tell GEOM that we've gone away, we'll get a callback when it is
1626	 * done cleaning up its resources.
1627	 */
1628	disk_gone(softc->disk);
1629}
1630
1631static void
1632dacleanup(struct cam_periph *periph)
1633{
1634	struct da_softc *softc;
1635
1636	softc = (struct da_softc *)periph->softc;
1637
1638	cam_periph_unlock(periph);
1639
1640	/*
1641	 * If we can't free the sysctl tree, oh well...
1642	 */
1643	if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1644	    && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1645		xpt_print(periph->path, "can't remove sysctl context\n");
1646	}
1647
1648	callout_drain(&softc->mediapoll_c);
1649	disk_destroy(softc->disk);
1650	callout_drain(&softc->sendordered_c);
1651	free(softc, M_DEVBUF);
1652	cam_periph_lock(periph);
1653}
1654
1655static void
1656daasync(void *callback_arg, u_int32_t code,
1657	struct cam_path *path, void *arg)
1658{
1659	struct cam_periph *periph;
1660	struct da_softc *softc;
1661
1662	periph = (struct cam_periph *)callback_arg;
1663	switch (code) {
1664	case AC_FOUND_DEVICE:
1665	{
1666		struct ccb_getdev *cgd;
1667		cam_status status;
1668
1669		cgd = (struct ccb_getdev *)arg;
1670		if (cgd == NULL)
1671			break;
1672
1673		if (cgd->protocol != PROTO_SCSI)
1674			break;
1675		if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
1676			break;
1677		if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1678		    && SID_TYPE(&cgd->inq_data) != T_RBC
1679		    && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1680			break;
1681
1682		/*
1683		 * Allocate a peripheral instance for
1684		 * this device and start the probe
1685		 * process.
1686		 */
1687		status = cam_periph_alloc(daregister, daoninvalidate,
1688					  dacleanup, dastart,
1689					  "da", CAM_PERIPH_BIO,
1690					  path, daasync,
1691					  AC_FOUND_DEVICE, cgd);
1692
1693		if (status != CAM_REQ_CMP
1694		 && status != CAM_REQ_INPROG)
1695			printf("daasync: Unable to attach to new device "
1696				"due to status 0x%x\n", status);
1697		return;
1698	}
1699	case AC_ADVINFO_CHANGED:
1700	{
1701		uintptr_t buftype;
1702
1703		buftype = (uintptr_t)arg;
1704		if (buftype == CDAI_TYPE_PHYS_PATH) {
1705			struct da_softc *softc;
1706
1707			softc = periph->softc;
1708			disk_attr_changed(softc->disk, "GEOM::physpath",
1709					  M_NOWAIT);
1710		}
1711		break;
1712	}
1713	case AC_UNIT_ATTENTION:
1714	{
1715		union ccb *ccb;
1716		int error_code, sense_key, asc, ascq;
1717
1718		softc = (struct da_softc *)periph->softc;
1719		ccb = (union ccb *)arg;
1720
1721		/*
1722		 * Handle all UNIT ATTENTIONs except our own,
1723		 * as they will be handled by daerror().
1724		 */
1725		if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1726		    scsi_extract_sense_ccb(ccb,
1727		     &error_code, &sense_key, &asc, &ascq)) {
1728			if (asc == 0x2A && ascq == 0x09) {
1729				xpt_print(ccb->ccb_h.path,
1730				    "Capacity data has changed\n");
1731				softc->flags &= ~DA_FLAG_PROBED;
1732				dareprobe(periph);
1733			} else if (asc == 0x28 && ascq == 0x00) {
1734				softc->flags &= ~DA_FLAG_PROBED;
1735				disk_media_changed(softc->disk, M_NOWAIT);
1736			} else if (asc == 0x3F && ascq == 0x03) {
1737				xpt_print(ccb->ccb_h.path,
1738				    "INQUIRY data has changed\n");
1739				softc->flags &= ~DA_FLAG_PROBED;
1740				dareprobe(periph);
1741			}
1742		}
1743		cam_periph_async(periph, code, path, arg);
1744		break;
1745	}
1746	case AC_SCSI_AEN:
1747		softc = (struct da_softc *)periph->softc;
1748		if (!softc->tur) {
1749			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1750				softc->tur = 1;
1751				daschedule(periph);
1752			}
1753		}
1754		/* FALLTHROUGH */
1755	case AC_SENT_BDR:
1756	case AC_BUS_RESET:
1757	{
1758		struct ccb_hdr *ccbh;
1759
1760		softc = (struct da_softc *)periph->softc;
1761		/*
1762		 * Don't fail on the expected unit attention
1763		 * that will occur.
1764		 */
1765		softc->flags |= DA_FLAG_RETRY_UA;
1766		LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1767			ccbh->ccb_state |= DA_CCB_RETRY_UA;
1768		break;
1769	}
1770	case AC_INQ_CHANGED:
1771		softc = (struct da_softc *)periph->softc;
1772		softc->flags &= ~DA_FLAG_PROBED;
1773		dareprobe(periph);
1774		break;
1775	default:
1776		break;
1777	}
1778	cam_periph_async(periph, code, path, arg);
1779}
1780
1781static void
1782dasysctlinit(void *context, int pending)
1783{
1784	struct cam_periph *periph;
1785	struct da_softc *softc;
1786	char tmpstr[80], tmpstr2[80];
1787	struct ccb_trans_settings cts;
1788
1789	periph = (struct cam_periph *)context;
1790	/*
1791	 * periph was held for us when this task was enqueued
1792	 */
1793	if (periph->flags & CAM_PERIPH_INVALID) {
1794		cam_periph_release(periph);
1795		return;
1796	}
1797
1798	softc = (struct da_softc *)periph->softc;
1799	snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1800	snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1801
1802	sysctl_ctx_init(&softc->sysctl_ctx);
1803	softc->flags |= DA_FLAG_SCTX_INIT;
1804	softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1805		SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1806		CTLFLAG_RD, 0, tmpstr);
1807	if (softc->sysctl_tree == NULL) {
1808		printf("dasysctlinit: unable to allocate sysctl tree\n");
1809		cam_periph_release(periph);
1810		return;
1811	}
1812
1813	/*
1814	 * Now register the sysctl handler, so the user can change the value on
1815	 * the fly.
1816	 */
1817	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1818		OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RWTUN,
1819		softc, 0, dadeletemethodsysctl, "A",
1820		"BIO_DELETE execution method");
1821	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1822		OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1823		softc, 0, dadeletemaxsysctl, "Q",
1824		"Maximum BIO_DELETE size");
1825	SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1826		OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1827		&softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1828		"Minimum CDB size");
1829	SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1830		OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1831		"Sort IO queue to try and optimise disk access patterns");
1832
1833	SYSCTL_ADD_INT(&softc->sysctl_ctx,
1834		       SYSCTL_CHILDREN(softc->sysctl_tree),
1835		       OID_AUTO,
1836		       "error_inject",
1837		       CTLFLAG_RW,
1838		       &softc->error_inject,
1839		       0,
1840		       "error_inject leaf");
1841
1842
1843	/*
1844	 * Add some addressing info.
1845	 */
1846	memset(&cts, 0, sizeof (cts));
1847	xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1848	cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1849	cts.type = CTS_TYPE_CURRENT_SETTINGS;
1850	cam_periph_lock(periph);
1851	xpt_action((union ccb *)&cts);
1852	cam_periph_unlock(periph);
1853	if (cts.ccb_h.status != CAM_REQ_CMP) {
1854		cam_periph_release(periph);
1855		return;
1856	}
1857	if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1858		struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1859		if (fc->valid & CTS_FC_VALID_WWPN) {
1860			softc->wwpn = fc->wwpn;
1861			SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1862			    SYSCTL_CHILDREN(softc->sysctl_tree),
1863			    OID_AUTO, "wwpn", CTLFLAG_RD,
1864			    &softc->wwpn, "World Wide Port Name");
1865		}
1866	}
1867	cam_periph_release(periph);
1868}
1869
1870static int
1871dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1872{
1873	int error;
1874	uint64_t value;
1875	struct da_softc *softc;
1876
1877	softc = (struct da_softc *)arg1;
1878
1879	value = softc->disk->d_delmaxsize;
1880	error = sysctl_handle_64(oidp, &value, 0, req);
1881	if ((error != 0) || (req->newptr == NULL))
1882		return (error);
1883
1884	/* only accept values smaller than the calculated value */
1885	if (value > dadeletemaxsize(softc, softc->delete_method)) {
1886		return (EINVAL);
1887	}
1888	softc->disk->d_delmaxsize = value;
1889
1890	return (0);
1891}
1892
1893static int
1894dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1895{
1896	int error, value;
1897
1898	value = *(int *)arg1;
1899
1900	error = sysctl_handle_int(oidp, &value, 0, req);
1901
1902	if ((error != 0)
1903	 || (req->newptr == NULL))
1904		return (error);
1905
1906	/*
1907	 * Acceptable values here are 6, 10, 12 or 16.
1908	 */
1909	if (value < 6)
1910		value = 6;
1911	else if ((value > 6)
1912	      && (value <= 10))
1913		value = 10;
1914	else if ((value > 10)
1915	      && (value <= 12))
1916		value = 12;
1917	else if (value > 12)
1918		value = 16;
1919
1920	*(int *)arg1 = value;
1921
1922	return (0);
1923}
1924
1925static void
1926dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1927{
1928
1929	softc->delete_method = delete_method;
1930	softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1931	softc->delete_func = da_delete_functions[delete_method];
1932
1933	if (softc->delete_method > DA_DELETE_DISABLE)
1934		softc->disk->d_flags |= DISKFLAG_CANDELETE;
1935	else
1936		softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1937}
1938
1939static off_t
1940dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1941{
1942	off_t sectors;
1943
1944	switch(delete_method) {
1945	case DA_DELETE_UNMAP:
1946		sectors = (off_t)softc->unmap_max_lba;
1947		break;
1948	case DA_DELETE_ATA_TRIM:
1949		sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1950		break;
1951	case DA_DELETE_WS16:
1952		sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
1953		break;
1954	case DA_DELETE_ZERO:
1955	case DA_DELETE_WS10:
1956		sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
1957		break;
1958	default:
1959		return 0;
1960	}
1961
1962	return (off_t)softc->params.secsize *
1963	    omin(sectors, softc->params.sectors);
1964}
1965
1966static void
1967daprobedone(struct cam_periph *periph, union ccb *ccb)
1968{
1969	struct da_softc *softc;
1970
1971	softc = (struct da_softc *)periph->softc;
1972
1973	dadeletemethodchoose(softc, DA_DELETE_NONE);
1974
1975	if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1976		char buf[80];
1977		int i, sep;
1978
1979		snprintf(buf, sizeof(buf), "Delete methods: <");
1980		sep = 0;
1981		for (i = 0; i <= DA_DELETE_MAX; i++) {
1982			if ((softc->delete_available & (1 << i)) == 0 &&
1983			    i != softc->delete_method)
1984				continue;
1985			if (sep)
1986				strlcat(buf, ",", sizeof(buf));
1987			strlcat(buf, da_delete_method_names[i],
1988			    sizeof(buf));
1989			if (i == softc->delete_method)
1990				strlcat(buf, "(*)", sizeof(buf));
1991			sep = 1;
1992		}
1993		strlcat(buf, ">", sizeof(buf));
1994		printf("%s%d: %s\n", periph->periph_name,
1995		    periph->unit_number, buf);
1996	}
1997
1998	/*
1999	 * Since our peripheral may be invalidated by an error
2000	 * above or an external event, we must release our CCB
2001	 * before releasing the probe lock on the peripheral.
2002	 * The peripheral will only go away once the last lock
2003	 * is removed, and we need it around for the CCB release
2004	 * operation.
2005	 */
2006	xpt_release_ccb(ccb);
2007	softc->state = DA_STATE_NORMAL;
2008	softc->flags |= DA_FLAG_PROBED;
2009	daschedule(periph);
2010	wakeup(&softc->disk->d_mediasize);
2011	if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
2012		softc->flags |= DA_FLAG_ANNOUNCED;
2013		cam_periph_unhold(periph);
2014	} else
2015		cam_periph_release_locked(periph);
2016}
2017
2018static void
2019dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
2020{
2021	int i, methods;
2022
2023	/* If available, prefer the method requested by user. */
2024	i = softc->delete_method_pref;
2025	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2026	if (methods & (1 << i)) {
2027		dadeletemethodset(softc, i);
2028		return;
2029	}
2030
2031	/* Use the pre-defined order to choose the best performing delete. */
2032	for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
2033		if (i == DA_DELETE_ZERO)
2034			continue;
2035		if (softc->delete_available & (1 << i)) {
2036			dadeletemethodset(softc, i);
2037			return;
2038		}
2039	}
2040
2041	/* Fallback to default. */
2042	dadeletemethodset(softc, default_method);
2043}
2044
2045static int
2046dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
2047{
2048	char buf[16];
2049	const char *p;
2050	struct da_softc *softc;
2051	int i, error, methods, value;
2052
2053	softc = (struct da_softc *)arg1;
2054
2055	value = softc->delete_method;
2056	if (value < 0 || value > DA_DELETE_MAX)
2057		p = "UNKNOWN";
2058	else
2059		p = da_delete_method_names[value];
2060	strncpy(buf, p, sizeof(buf));
2061	error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2062	if (error != 0 || req->newptr == NULL)
2063		return (error);
2064	methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2065	for (i = 0; i <= DA_DELETE_MAX; i++) {
2066		if (strcmp(buf, da_delete_method_names[i]) == 0)
2067			break;
2068	}
2069	if (i > DA_DELETE_MAX)
2070		return (EINVAL);
2071	softc->delete_method_pref = i;
2072	dadeletemethodchoose(softc, DA_DELETE_NONE);
2073	return (0);
2074}
2075
2076static cam_status
2077daregister(struct cam_periph *periph, void *arg)
2078{
2079	struct da_softc *softc;
2080	struct ccb_pathinq cpi;
2081	struct ccb_getdev *cgd;
2082	char tmpstr[80];
2083	caddr_t match;
2084
2085	cgd = (struct ccb_getdev *)arg;
2086	if (cgd == NULL) {
2087		printf("daregister: no getdev CCB, can't register device\n");
2088		return(CAM_REQ_CMP_ERR);
2089	}
2090
2091	softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2092	    M_NOWAIT|M_ZERO);
2093
2094	if (softc == NULL) {
2095		printf("daregister: Unable to probe new device. "
2096		       "Unable to allocate softc\n");
2097		return(CAM_REQ_CMP_ERR);
2098	}
2099
2100	LIST_INIT(&softc->pending_ccbs);
2101	softc->state = DA_STATE_PROBE_WP;
2102	bioq_init(&softc->bio_queue);
2103	bioq_init(&softc->delete_queue);
2104	bioq_init(&softc->delete_run_queue);
2105	if (SID_IS_REMOVABLE(&cgd->inq_data))
2106		softc->flags |= DA_FLAG_PACK_REMOVABLE;
2107	softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2108	softc->unmap_max_lba = UNMAP_RANGE_MAX;
2109	softc->ws_max_blks = WS16_MAX_BLKS;
2110	softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2111	softc->sort_io_queue = -1;
2112
2113	periph->softc = softc;
2114
2115	/*
2116	 * See if this device has any quirks.
2117	 */
2118	match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2119			       (caddr_t)da_quirk_table,
2120			       sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2121			       sizeof(*da_quirk_table), scsi_inquiry_match);
2122
2123	if (match != NULL)
2124		softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2125	else
2126		softc->quirks = DA_Q_NONE;
2127
2128	/* Check if the SIM does not want 6 byte commands */
2129	bzero(&cpi, sizeof(cpi));
2130	xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2131	cpi.ccb_h.func_code = XPT_PATH_INQ;
2132	xpt_action((union ccb *)&cpi);
2133	if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2134		softc->quirks |= DA_Q_NO_6_BYTE;
2135
2136	TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2137
2138	/*
2139	 * Take an exclusive refcount on the periph while dastart is called
2140	 * to finish the probe.  The reference will be dropped in dadone at
2141	 * the end of probe.
2142	 */
2143	(void)cam_periph_hold(periph, PRIBIO);
2144
2145	/*
2146	 * Schedule a periodic event to occasionally send an
2147	 * ordered tag to a device.
2148	 */
2149	callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2150	callout_reset(&softc->sendordered_c,
2151	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2152	    dasendorderedtag, softc);
2153
2154	cam_periph_unlock(periph);
2155	/*
2156	 * RBC devices don't have to support READ(6), only READ(10).
2157	 */
2158	if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2159		softc->minimum_cmd_size = 10;
2160	else
2161		softc->minimum_cmd_size = 6;
2162
2163	/*
2164	 * Load the user's default, if any.
2165	 */
2166	snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2167		 periph->unit_number);
2168	TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2169
2170	/*
2171	 * 6, 10, 12 and 16 are the currently permissible values.
2172	 */
2173	if (softc->minimum_cmd_size < 6)
2174		softc->minimum_cmd_size = 6;
2175	else if ((softc->minimum_cmd_size > 6)
2176	      && (softc->minimum_cmd_size <= 10))
2177		softc->minimum_cmd_size = 10;
2178	else if ((softc->minimum_cmd_size > 10)
2179	      && (softc->minimum_cmd_size <= 12))
2180		softc->minimum_cmd_size = 12;
2181	else if (softc->minimum_cmd_size > 12)
2182		softc->minimum_cmd_size = 16;
2183
2184	/* Predict whether device may support READ CAPACITY(16). */
2185	if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2186	    (softc->quirks & DA_Q_NO_RC16) == 0) {
2187		softc->flags |= DA_FLAG_CAN_RC16;
2188	}
2189
2190	/*
2191	 * Register this media as a disk.
2192	 */
2193	softc->disk = disk_alloc();
2194	softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2195			  periph->unit_number, 0,
2196			  DEVSTAT_BS_UNAVAILABLE,
2197			  SID_TYPE(&cgd->inq_data) |
2198			  XPORT_DEVSTAT_TYPE(cpi.transport),
2199			  DEVSTAT_PRIORITY_DISK);
2200	softc->disk->d_open = daopen;
2201	softc->disk->d_close = daclose;
2202	softc->disk->d_strategy = dastrategy;
2203	softc->disk->d_dump = dadump;
2204	softc->disk->d_getattr = dagetattr;
2205	softc->disk->d_gone = dadiskgonecb;
2206	softc->disk->d_name = "da";
2207	softc->disk->d_drv1 = periph;
2208	if (cpi.maxio == 0)
2209		softc->maxio = DFLTPHYS;	/* traditional default */
2210	else if (cpi.maxio > MAXPHYS)
2211		softc->maxio = MAXPHYS;		/* for safety */
2212	else
2213		softc->maxio = cpi.maxio;
2214	softc->disk->d_maxsize = softc->maxio;
2215	softc->disk->d_unit = periph->unit_number;
2216	softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
2217	if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2218		softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2219	if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2220		softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2221	cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2222	    sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2223	strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2224	cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2225	    cgd->inq_data.product, sizeof(cgd->inq_data.product),
2226	    sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2227	softc->disk->d_hba_vendor = cpi.hba_vendor;
2228	softc->disk->d_hba_device = cpi.hba_device;
2229	softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2230	softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2231
2232	/*
2233	 * Acquire a reference to the periph before we register with GEOM.
2234	 * We'll release this reference once GEOM calls us back (via
2235	 * dadiskgonecb()) telling us that our provider has been freed.
2236	 */
2237	if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2238		xpt_print(periph->path, "%s: lost periph during "
2239			  "registration!\n", __func__);
2240		cam_periph_lock(periph);
2241		return (CAM_REQ_CMP_ERR);
2242	}
2243
2244	disk_create(softc->disk, DISK_VERSION);
2245	cam_periph_lock(periph);
2246
2247	/*
2248	 * Add async callbacks for events of interest.
2249	 * I don't bother checking if this fails as,
2250	 * in most cases, the system will function just
2251	 * fine without them and the only alternative
2252	 * would be to not attach the device on failure.
2253	 */
2254	xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2255	    AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION |
2256	    AC_INQ_CHANGED, daasync, periph, periph->path);
2257
2258	/*
2259	 * Emit an attribute changed notification just in case
2260	 * physical path information arrived before our async
2261	 * event handler was registered, but after anyone attaching
2262	 * to our disk device polled it.
2263	 */
2264	disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2265
2266	/*
2267	 * Schedule a periodic media polling events.
2268	 */
2269	callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2270	if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2271	    (cgd->inq_flags & SID_AEN) == 0 &&
2272	    da_poll_period != 0)
2273		callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2274		    damediapoll, periph);
2275
2276	xpt_schedule(periph, CAM_PRIORITY_DEV);
2277
2278	return(CAM_REQ_CMP);
2279}
2280
2281static void
2282dastart(struct cam_periph *periph, union ccb *start_ccb)
2283{
2284	struct da_softc *softc;
2285
2286	softc = (struct da_softc *)periph->softc;
2287
2288	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2289
2290skipstate:
2291	switch (softc->state) {
2292	case DA_STATE_NORMAL:
2293	{
2294		struct bio *bp;
2295		uint8_t tag_code;
2296
2297		/* Run BIO_DELETE if not running yet. */
2298		if (!softc->delete_running &&
2299		    (bp = bioq_first(&softc->delete_queue)) != NULL) {
2300			if (softc->delete_func != NULL) {
2301				softc->delete_func(periph, start_ccb, bp);
2302				goto out;
2303			} else {
2304				bioq_flush(&softc->delete_queue, NULL, 0);
2305				/* FALLTHROUGH */
2306			}
2307		}
2308
2309		/* Run regular command. */
2310		bp = bioq_takefirst(&softc->bio_queue);
2311		if (bp == NULL) {
2312			if (softc->tur) {
2313				softc->tur = 0;
2314				scsi_test_unit_ready(&start_ccb->csio,
2315				     /*retries*/ da_retry_count,
2316				     dadone,
2317				     MSG_SIMPLE_Q_TAG,
2318				     SSD_FULL_SIZE,
2319				     da_default_timeout * 1000);
2320				start_ccb->ccb_h.ccb_bp = NULL;
2321				start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2322				xpt_action(start_ccb);
2323			} else
2324				xpt_release_ccb(start_ccb);
2325			break;
2326		}
2327		if (softc->tur) {
2328			softc->tur = 0;
2329			cam_periph_release_locked(periph);
2330		}
2331
2332		if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2333		    (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2334			softc->flags &= ~DA_FLAG_NEED_OTAG;
2335			softc->flags |= DA_FLAG_WAS_OTAG;
2336			tag_code = MSG_ORDERED_Q_TAG;
2337		} else {
2338			tag_code = MSG_SIMPLE_Q_TAG;
2339		}
2340
2341		switch (bp->bio_cmd) {
2342		case BIO_WRITE:
2343		case BIO_READ:
2344		{
2345			void *data_ptr;
2346			int rw_op;
2347
2348			if (bp->bio_cmd == BIO_WRITE) {
2349				softc->flags |= DA_FLAG_DIRTY;
2350				rw_op = SCSI_RW_WRITE;
2351			} else {
2352				rw_op = SCSI_RW_READ;
2353			}
2354
2355			data_ptr = bp->bio_data;
2356			if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) {
2357				rw_op |= SCSI_RW_BIO;
2358				data_ptr = bp;
2359			}
2360
2361			scsi_read_write(&start_ccb->csio,
2362					/*retries*/da_retry_count,
2363					/*cbfcnp*/dadone,
2364					/*tag_action*/tag_code,
2365					rw_op,
2366					/*byte2*/0,
2367					softc->minimum_cmd_size,
2368					/*lba*/bp->bio_pblkno,
2369					/*block_count*/bp->bio_bcount /
2370					softc->params.secsize,
2371					data_ptr,
2372					/*dxfer_len*/ bp->bio_bcount,
2373					/*sense_len*/SSD_FULL_SIZE,
2374					da_default_timeout * 1000);
2375			break;
2376		}
2377		case BIO_FLUSH:
2378			/*
2379			 * BIO_FLUSH doesn't currently communicate
2380			 * range data, so we synchronize the cache
2381			 * over the whole disk.  We also force
2382			 * ordered tag semantics the flush applies
2383			 * to all previously queued I/O.
2384			 */
2385			scsi_synchronize_cache(&start_ccb->csio,
2386					       /*retries*/1,
2387					       /*cbfcnp*/dadone,
2388					       MSG_ORDERED_Q_TAG,
2389					       /*begin_lba*/0,
2390					       /*lb_count*/0,
2391					       SSD_FULL_SIZE,
2392					       da_default_timeout*1000);
2393			break;
2394		}
2395		start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2396		start_ccb->ccb_h.flags |= CAM_UNLOCKED;
2397
2398out:
2399		LIST_INSERT_HEAD(&softc->pending_ccbs,
2400				 &start_ccb->ccb_h, periph_links.le);
2401
2402		/* We expect a unit attention from this device */
2403		if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2404			start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2405			softc->flags &= ~DA_FLAG_RETRY_UA;
2406		}
2407
2408		start_ccb->ccb_h.ccb_bp = bp;
2409		softc->refcount++;
2410		cam_periph_unlock(periph);
2411		xpt_action(start_ccb);
2412		cam_periph_lock(periph);
2413		softc->refcount--;
2414
2415		/* May have more work to do, so ensure we stay scheduled */
2416		daschedule(periph);
2417		break;
2418	}
2419	case DA_STATE_PROBE_WP:
2420	{
2421		void  *mode_buf;
2422		int    mode_buf_len;
2423
2424		mode_buf_len = 192;
2425		mode_buf = malloc(mode_buf_len, M_SCSIDA, M_NOWAIT);
2426		if (mode_buf == NULL) {
2427			xpt_print(periph->path, "Unable to send mode sense - "
2428			    "malloc failure\n");
2429			softc->state = DA_STATE_PROBE_RC;
2430			goto skipstate;
2431		}
2432		scsi_mode_sense_len(&start_ccb->csio,
2433				    /*retries*/ da_retry_count,
2434				    /*cbfcnp*/ dadone,
2435				    /*tag_action*/ MSG_SIMPLE_Q_TAG,
2436				    /*dbd*/ FALSE,
2437				    /*pc*/ SMS_PAGE_CTRL_CURRENT,
2438				    /*page*/ SMS_ALL_PAGES_PAGE,
2439				    /*param_buf*/ mode_buf,
2440				    /*param_len*/ mode_buf_len,
2441				    /*minimum_cmd_size*/ softc->minimum_cmd_size,
2442				    /*sense_len*/ SSD_FULL_SIZE,
2443				    /*timeout*/ da_default_timeout * 1000);
2444		start_ccb->ccb_h.ccb_bp = NULL;
2445		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_WP;
2446		xpt_action(start_ccb);
2447		break;
2448	}
2449	case DA_STATE_PROBE_RC:
2450	{
2451		struct scsi_read_capacity_data *rcap;
2452
2453		rcap = (struct scsi_read_capacity_data *)
2454		    malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2455		if (rcap == NULL) {
2456			printf("dastart: Couldn't malloc read_capacity data\n");
2457			/* da_free_periph??? */
2458			break;
2459		}
2460		scsi_read_capacity(&start_ccb->csio,
2461				   /*retries*/da_retry_count,
2462				   dadone,
2463				   MSG_SIMPLE_Q_TAG,
2464				   rcap,
2465				   SSD_FULL_SIZE,
2466				   /*timeout*/5000);
2467		start_ccb->ccb_h.ccb_bp = NULL;
2468		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2469		xpt_action(start_ccb);
2470		break;
2471	}
2472	case DA_STATE_PROBE_RC16:
2473	{
2474		struct scsi_read_capacity_data_long *rcaplong;
2475
2476		rcaplong = (struct scsi_read_capacity_data_long *)
2477			malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2478		if (rcaplong == NULL) {
2479			printf("dastart: Couldn't malloc read_capacity data\n");
2480			/* da_free_periph??? */
2481			break;
2482		}
2483		scsi_read_capacity_16(&start_ccb->csio,
2484				      /*retries*/ da_retry_count,
2485				      /*cbfcnp*/ dadone,
2486				      /*tag_action*/ MSG_SIMPLE_Q_TAG,
2487				      /*lba*/ 0,
2488				      /*reladr*/ 0,
2489				      /*pmi*/ 0,
2490				      /*rcap_buf*/ (uint8_t *)rcaplong,
2491				      /*rcap_buf_len*/ sizeof(*rcaplong),
2492				      /*sense_len*/ SSD_FULL_SIZE,
2493				      /*timeout*/ da_default_timeout * 1000);
2494		start_ccb->ccb_h.ccb_bp = NULL;
2495		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2496		xpt_action(start_ccb);
2497		break;
2498	}
2499	case DA_STATE_PROBE_LBP:
2500	{
2501		struct scsi_vpd_logical_block_prov *lbp;
2502
2503		if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2504			/*
2505			 * If we get here we don't support any SBC-3 delete
2506			 * methods with UNMAP as the Logical Block Provisioning
2507			 * VPD page support is required for devices which
2508			 * support it according to T10/1799-D Revision 31
2509			 * however older revisions of the spec don't mandate
2510			 * this so we currently don't remove these methods
2511			 * from the available set.
2512			 */
2513			softc->state = DA_STATE_PROBE_BLK_LIMITS;
2514			goto skipstate;
2515		}
2516
2517		lbp = (struct scsi_vpd_logical_block_prov *)
2518			malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2519
2520		if (lbp == NULL) {
2521			printf("dastart: Couldn't malloc lbp data\n");
2522			/* da_free_periph??? */
2523			break;
2524		}
2525
2526		scsi_inquiry(&start_ccb->csio,
2527			     /*retries*/da_retry_count,
2528			     /*cbfcnp*/dadone,
2529			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2530			     /*inq_buf*/(u_int8_t *)lbp,
2531			     /*inq_len*/sizeof(*lbp),
2532			     /*evpd*/TRUE,
2533			     /*page_code*/SVPD_LBP,
2534			     /*sense_len*/SSD_MIN_SIZE,
2535			     /*timeout*/da_default_timeout * 1000);
2536		start_ccb->ccb_h.ccb_bp = NULL;
2537		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2538		xpt_action(start_ccb);
2539		break;
2540	}
2541	case DA_STATE_PROBE_BLK_LIMITS:
2542	{
2543		struct scsi_vpd_block_limits *block_limits;
2544
2545		if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2546			/* Not supported skip to next probe */
2547			softc->state = DA_STATE_PROBE_BDC;
2548			goto skipstate;
2549		}
2550
2551		block_limits = (struct scsi_vpd_block_limits *)
2552			malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2553
2554		if (block_limits == NULL) {
2555			printf("dastart: Couldn't malloc block_limits data\n");
2556			/* da_free_periph??? */
2557			break;
2558		}
2559
2560		scsi_inquiry(&start_ccb->csio,
2561			     /*retries*/da_retry_count,
2562			     /*cbfcnp*/dadone,
2563			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2564			     /*inq_buf*/(u_int8_t *)block_limits,
2565			     /*inq_len*/sizeof(*block_limits),
2566			     /*evpd*/TRUE,
2567			     /*page_code*/SVPD_BLOCK_LIMITS,
2568			     /*sense_len*/SSD_MIN_SIZE,
2569			     /*timeout*/da_default_timeout * 1000);
2570		start_ccb->ccb_h.ccb_bp = NULL;
2571		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2572		xpt_action(start_ccb);
2573		break;
2574	}
2575	case DA_STATE_PROBE_BDC:
2576	{
2577		struct scsi_vpd_block_characteristics *bdc;
2578
2579		if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2580			softc->state = DA_STATE_PROBE_ATA;
2581			goto skipstate;
2582		}
2583
2584		bdc = (struct scsi_vpd_block_characteristics *)
2585			malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2586
2587		if (bdc == NULL) {
2588			printf("dastart: Couldn't malloc bdc data\n");
2589			/* da_free_periph??? */
2590			break;
2591		}
2592
2593		scsi_inquiry(&start_ccb->csio,
2594			     /*retries*/da_retry_count,
2595			     /*cbfcnp*/dadone,
2596			     /*tag_action*/MSG_SIMPLE_Q_TAG,
2597			     /*inq_buf*/(u_int8_t *)bdc,
2598			     /*inq_len*/sizeof(*bdc),
2599			     /*evpd*/TRUE,
2600			     /*page_code*/SVPD_BDC,
2601			     /*sense_len*/SSD_MIN_SIZE,
2602			     /*timeout*/da_default_timeout * 1000);
2603		start_ccb->ccb_h.ccb_bp = NULL;
2604		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2605		xpt_action(start_ccb);
2606		break;
2607	}
2608	case DA_STATE_PROBE_ATA:
2609	{
2610		struct ata_params *ata_params;
2611
2612		if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2613			daprobedone(periph, start_ccb);
2614			break;
2615		}
2616
2617		ata_params = (struct ata_params*)
2618			malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2619
2620		if (ata_params == NULL) {
2621			printf("dastart: Couldn't malloc ata_params data\n");
2622			/* da_free_periph??? */
2623			break;
2624		}
2625
2626		scsi_ata_identify(&start_ccb->csio,
2627				  /*retries*/da_retry_count,
2628				  /*cbfcnp*/dadone,
2629                                  /*tag_action*/MSG_SIMPLE_Q_TAG,
2630				  /*data_ptr*/(u_int8_t *)ata_params,
2631				  /*dxfer_len*/sizeof(*ata_params),
2632				  /*sense_len*/SSD_FULL_SIZE,
2633				  /*timeout*/da_default_timeout * 1000);
2634		start_ccb->ccb_h.ccb_bp = NULL;
2635		start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2636		xpt_action(start_ccb);
2637		break;
2638	}
2639	}
2640}
2641
2642/*
2643 * In each of the methods below, while its the caller's
2644 * responsibility to ensure the request will fit into a
2645 * single device request, we might have changed the delete
2646 * method due to the device incorrectly advertising either
2647 * its supported methods or limits.
2648 *
2649 * To prevent this causing further issues we validate the
2650 * against the methods limits, and warn which would
2651 * otherwise be unnecessary.
2652 */
2653static void
2654da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2655{
2656	struct da_softc *softc = (struct da_softc *)periph->softc;;
2657	struct bio *bp1;
2658	uint8_t *buf = softc->unmap_buf;
2659	uint64_t lba, lastlba = (uint64_t)-1;
2660	uint64_t totalcount = 0;
2661	uint64_t count;
2662	uint32_t lastcount = 0, c;
2663	uint32_t off, ranges = 0;
2664
2665	/*
2666	 * Currently this doesn't take the UNMAP
2667	 * Granularity and Granularity Alignment
2668	 * fields into account.
2669	 *
2670	 * This could result in both unoptimal unmap
2671	 * requests as as well as UNMAP calls unmapping
2672	 * fewer LBA's than requested.
2673	 */
2674
2675	softc->delete_running = 1;
2676	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2677	bp1 = bp;
2678	do {
2679		bioq_remove(&softc->delete_queue, bp1);
2680		if (bp1 != bp)
2681			bioq_insert_tail(&softc->delete_run_queue, bp1);
2682		lba = bp1->bio_pblkno;
2683		count = bp1->bio_bcount / softc->params.secsize;
2684
2685		/* Try to extend the previous range. */
2686		if (lba == lastlba) {
2687			c = omin(count, UNMAP_RANGE_MAX - lastcount);
2688			lastcount += c;
2689			off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2690			      UNMAP_HEAD_SIZE;
2691			scsi_ulto4b(lastcount, &buf[off + 8]);
2692			count -= c;
2693			lba +=c;
2694			totalcount += c;
2695		}
2696
2697		while (count > 0) {
2698			c = omin(count, UNMAP_RANGE_MAX);
2699			if (totalcount + c > softc->unmap_max_lba ||
2700			    ranges >= softc->unmap_max_ranges) {
2701				xpt_print(periph->path,
2702				    "%s issuing short delete %ld > %ld"
2703				    "|| %d >= %d",
2704				    da_delete_method_desc[softc->delete_method],
2705				    totalcount + c, softc->unmap_max_lba,
2706				    ranges, softc->unmap_max_ranges);
2707				break;
2708			}
2709			off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
2710			scsi_u64to8b(lba, &buf[off + 0]);
2711			scsi_ulto4b(c, &buf[off + 8]);
2712			lba += c;
2713			totalcount += c;
2714			ranges++;
2715			count -= c;
2716			lastcount = c;
2717		}
2718		lastlba = lba;
2719		bp1 = bioq_first(&softc->delete_queue);
2720		if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
2721		    totalcount + bp1->bio_bcount /
2722		    softc->params.secsize > softc->unmap_max_lba)
2723			break;
2724	} while (1);
2725	scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2726	scsi_ulto2b(ranges * 16, &buf[2]);
2727
2728	scsi_unmap(&ccb->csio,
2729		   /*retries*/da_retry_count,
2730		   /*cbfcnp*/dadone,
2731		   /*tag_action*/MSG_SIMPLE_Q_TAG,
2732		   /*byte2*/0,
2733		   /*data_ptr*/ buf,
2734		   /*dxfer_len*/ ranges * 16 + 8,
2735		   /*sense_len*/SSD_FULL_SIZE,
2736		   da_default_timeout * 1000);
2737	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2738	ccb->ccb_h.flags |= CAM_UNLOCKED;
2739}
2740
2741static void
2742da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2743{
2744	struct da_softc *softc = (struct da_softc *)periph->softc;
2745	struct bio *bp1;
2746	uint8_t *buf = softc->unmap_buf;
2747	uint64_t lastlba = (uint64_t)-1;
2748	uint64_t count;
2749	uint64_t lba;
2750	uint32_t lastcount = 0, c, requestcount;
2751	int ranges = 0, off, block_count;
2752
2753	softc->delete_running = 1;
2754	bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2755	bp1 = bp;
2756	do {
2757		bioq_remove(&softc->delete_queue, bp1);
2758		if (bp1 != bp)
2759			bioq_insert_tail(&softc->delete_run_queue, bp1);
2760		lba = bp1->bio_pblkno;
2761		count = bp1->bio_bcount / softc->params.secsize;
2762		requestcount = count;
2763
2764		/* Try to extend the previous range. */
2765		if (lba == lastlba) {
2766			c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
2767			lastcount += c;
2768			off = (ranges - 1) * 8;
2769			buf[off + 6] = lastcount & 0xff;
2770			buf[off + 7] = (lastcount >> 8) & 0xff;
2771			count -= c;
2772			lba += c;
2773		}
2774
2775		while (count > 0) {
2776			c = omin(count, ATA_DSM_RANGE_MAX);
2777			off = ranges * 8;
2778
2779			buf[off + 0] = lba & 0xff;
2780			buf[off + 1] = (lba >> 8) & 0xff;
2781			buf[off + 2] = (lba >> 16) & 0xff;
2782			buf[off + 3] = (lba >> 24) & 0xff;
2783			buf[off + 4] = (lba >> 32) & 0xff;
2784			buf[off + 5] = (lba >> 40) & 0xff;
2785			buf[off + 6] = c & 0xff;
2786			buf[off + 7] = (c >> 8) & 0xff;
2787			lba += c;
2788			ranges++;
2789			count -= c;
2790			lastcount = c;
2791			if (count != 0 && ranges == softc->trim_max_ranges) {
2792				xpt_print(periph->path,
2793				    "%s issuing short delete %ld > %ld\n",
2794				    da_delete_method_desc[softc->delete_method],
2795				    requestcount,
2796				    (softc->trim_max_ranges - ranges) *
2797				    ATA_DSM_RANGE_MAX);
2798				break;
2799			}
2800		}
2801		lastlba = lba;
2802		bp1 = bioq_first(&softc->delete_queue);
2803		if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
2804		    (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
2805			break;
2806	} while (1);
2807
2808	block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
2809	scsi_ata_trim(&ccb->csio,
2810		      /*retries*/da_retry_count,
2811		      /*cbfcnp*/dadone,
2812		      /*tag_action*/MSG_SIMPLE_Q_TAG,
2813		      block_count,
2814		      /*data_ptr*/buf,
2815		      /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2816		      /*sense_len*/SSD_FULL_SIZE,
2817		      da_default_timeout * 1000);
2818	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2819	ccb->ccb_h.flags |= CAM_UNLOCKED;
2820}
2821
2822/*
2823 * We calculate ws_max_blks here based off d_delmaxsize instead
2824 * of using softc->ws_max_blks as it is absolute max for the
2825 * device not the protocol max which may well be lower.
2826 */
2827static void
2828da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2829{
2830	struct da_softc *softc;
2831	struct bio *bp1;
2832	uint64_t ws_max_blks;
2833	uint64_t lba;
2834	uint64_t count; /* forward compat with WS32 */
2835
2836	softc = (struct da_softc *)periph->softc;
2837	ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2838	softc->delete_running = 1;
2839	lba = bp->bio_pblkno;
2840	count = 0;
2841	bp1 = bp;
2842	do {
2843		bioq_remove(&softc->delete_queue, bp1);
2844		if (bp1 != bp)
2845			bioq_insert_tail(&softc->delete_run_queue, bp1);
2846		count += bp1->bio_bcount / softc->params.secsize;
2847		if (count > ws_max_blks) {
2848			xpt_print(periph->path,
2849			    "%s issuing short delete %ld > %ld\n",
2850			    da_delete_method_desc[softc->delete_method],
2851			    count, ws_max_blks);
2852			count = omin(count, ws_max_blks);
2853			break;
2854		}
2855		bp1 = bioq_first(&softc->delete_queue);
2856		if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
2857		    count + bp1->bio_bcount /
2858		    softc->params.secsize > ws_max_blks)
2859			break;
2860	} while (1);
2861
2862	scsi_write_same(&ccb->csio,
2863			/*retries*/da_retry_count,
2864			/*cbfcnp*/dadone,
2865			/*tag_action*/MSG_SIMPLE_Q_TAG,
2866			/*byte2*/softc->delete_method ==
2867			    DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2868			softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
2869			/*lba*/lba,
2870			/*block_count*/count,
2871			/*data_ptr*/ __DECONST(void *, zero_region),
2872			/*dxfer_len*/ softc->params.secsize,
2873			/*sense_len*/SSD_FULL_SIZE,
2874			da_default_timeout * 1000);
2875	ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2876	ccb->ccb_h.flags |= CAM_UNLOCKED;
2877}
2878
2879static int
2880cmd6workaround(union ccb *ccb)
2881{
2882	struct scsi_rw_6 cmd6;
2883	struct scsi_rw_10 *cmd10;
2884	struct da_softc *softc;
2885	u_int8_t *cdb;
2886	struct bio *bp;
2887	int frozen;
2888
2889	cdb = ccb->csio.cdb_io.cdb_bytes;
2890	softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2891
2892	if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2893		da_delete_methods old_method = softc->delete_method;
2894
2895		/*
2896		 * Typically there are two reasons for failure here
2897		 * 1. Delete method was detected as supported but isn't
2898		 * 2. Delete failed due to invalid params e.g. too big
2899		 *
2900		 * While we will attempt to choose an alternative delete method
2901		 * this may result in short deletes if the existing delete
2902		 * requests from geom are big for the new method chosen.
2903		 *
2904		 * This method assumes that the error which triggered this
2905		 * will not retry the io otherwise a panic will occur
2906		 */
2907		dadeleteflag(softc, old_method, 0);
2908		dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2909		if (softc->delete_method == DA_DELETE_DISABLE)
2910			xpt_print(ccb->ccb_h.path,
2911				  "%s failed, disabling BIO_DELETE\n",
2912				  da_delete_method_desc[old_method]);
2913		else
2914			xpt_print(ccb->ccb_h.path,
2915				  "%s failed, switching to %s BIO_DELETE\n",
2916				  da_delete_method_desc[old_method],
2917				  da_delete_method_desc[softc->delete_method]);
2918
2919		while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
2920			bioq_disksort(&softc->delete_queue, bp);
2921		bioq_disksort(&softc->delete_queue,
2922		    (struct bio *)ccb->ccb_h.ccb_bp);
2923		ccb->ccb_h.ccb_bp = NULL;
2924		return (0);
2925	}
2926
2927	/* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
2928	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2929	    (*cdb == PREVENT_ALLOW) &&
2930	    (softc->quirks & DA_Q_NO_PREVENT) == 0) {
2931		if (bootverbose)
2932			xpt_print(ccb->ccb_h.path,
2933			    "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
2934		softc->quirks |= DA_Q_NO_PREVENT;
2935		return (0);
2936	}
2937
2938	/* Detect unsupported SYNCHRONIZE CACHE(10). */
2939	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2940	    (*cdb == SYNCHRONIZE_CACHE) &&
2941	    (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
2942		if (bootverbose)
2943			xpt_print(ccb->ccb_h.path,
2944			    "SYNCHRONIZE CACHE(10) not supported.\n");
2945		softc->quirks |= DA_Q_NO_SYNC_CACHE;
2946		softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
2947		return (0);
2948	}
2949
2950	/* Translation only possible if CDB is an array and cmd is R/W6 */
2951	if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2952	    (*cdb != READ_6 && *cdb != WRITE_6))
2953		return 0;
2954
2955	xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2956	    "increasing minimum_cmd_size to 10.\n");
2957 	softc->minimum_cmd_size = 10;
2958
2959	bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2960	cmd10 = (struct scsi_rw_10 *)cdb;
2961	cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2962	cmd10->byte2 = 0;
2963	scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2964	cmd10->reserved = 0;
2965	scsi_ulto2b(cmd6.length, cmd10->length);
2966	cmd10->control = cmd6.control;
2967	ccb->csio.cdb_len = sizeof(*cmd10);
2968
2969	/* Requeue request, unfreezing queue if necessary */
2970	frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2971 	ccb->ccb_h.status = CAM_REQUEUE_REQ;
2972	xpt_action(ccb);
2973	if (frozen) {
2974		cam_release_devq(ccb->ccb_h.path,
2975				 /*relsim_flags*/0,
2976				 /*reduction*/0,
2977				 /*timeout*/0,
2978				 /*getcount_only*/0);
2979	}
2980	return (ERESTART);
2981}
2982
2983static void
2984dadone(struct cam_periph *periph, union ccb *done_ccb)
2985{
2986	struct da_softc *softc;
2987	struct ccb_scsiio *csio;
2988	u_int32_t  priority;
2989	da_ccb_state state;
2990
2991	softc = (struct da_softc *)periph->softc;
2992	priority = done_ccb->ccb_h.pinfo.priority;
2993
2994	CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2995
2996	csio = &done_ccb->csio;
2997	state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
2998	switch (state) {
2999	case DA_CCB_BUFFER_IO:
3000	case DA_CCB_DELETE:
3001	{
3002		struct bio *bp, *bp1;
3003
3004		cam_periph_lock(periph);
3005		bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
3006		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3007			int error;
3008			int sf;
3009
3010			if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
3011				sf = SF_RETRY_UA;
3012			else
3013				sf = 0;
3014
3015			error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
3016			if (error == ERESTART) {
3017				/*
3018				 * A retry was scheduled, so
3019				 * just return.
3020				 */
3021				cam_periph_unlock(periph);
3022				return;
3023			}
3024			bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
3025			if (error != 0) {
3026				int queued_error;
3027
3028				/*
3029				 * return all queued I/O with EIO, so that
3030				 * the client can retry these I/Os in the
3031				 * proper order should it attempt to recover.
3032				 */
3033				queued_error = EIO;
3034
3035				if (error == ENXIO
3036				 && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
3037					/*
3038					 * Catastrophic error.  Mark our pack as
3039					 * invalid.
3040					 */
3041					/*
3042					 * XXX See if this is really a media
3043					 * XXX change first?
3044					 */
3045					xpt_print(periph->path,
3046					    "Invalidating pack\n");
3047					softc->flags |= DA_FLAG_PACK_INVALID;
3048					queued_error = ENXIO;
3049				}
3050				bioq_flush(&softc->bio_queue, NULL,
3051					   queued_error);
3052				if (bp != NULL) {
3053					bp->bio_error = error;
3054					bp->bio_resid = bp->bio_bcount;
3055					bp->bio_flags |= BIO_ERROR;
3056				}
3057			} else if (bp != NULL) {
3058				if (state == DA_CCB_DELETE)
3059					bp->bio_resid = 0;
3060				else
3061					bp->bio_resid = csio->resid;
3062				bp->bio_error = 0;
3063				if (bp->bio_resid != 0)
3064					bp->bio_flags |= BIO_ERROR;
3065			}
3066			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3067				cam_release_devq(done_ccb->ccb_h.path,
3068						 /*relsim_flags*/0,
3069						 /*reduction*/0,
3070						 /*timeout*/0,
3071						 /*getcount_only*/0);
3072		} else if (bp != NULL) {
3073			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3074				panic("REQ_CMP with QFRZN");
3075			if (state == DA_CCB_DELETE)
3076				bp->bio_resid = 0;
3077			else
3078				bp->bio_resid = csio->resid;
3079			if (csio->resid > 0)
3080				bp->bio_flags |= BIO_ERROR;
3081			if (softc->error_inject != 0) {
3082				bp->bio_error = softc->error_inject;
3083				bp->bio_resid = bp->bio_bcount;
3084				bp->bio_flags |= BIO_ERROR;
3085				softc->error_inject = 0;
3086			}
3087		}
3088
3089		LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
3090		if (LIST_EMPTY(&softc->pending_ccbs))
3091			softc->flags |= DA_FLAG_WAS_OTAG;
3092
3093		xpt_release_ccb(done_ccb);
3094		if (state == DA_CCB_DELETE) {
3095			TAILQ_HEAD(, bio) queue;
3096
3097			TAILQ_INIT(&queue);
3098			TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
3099			softc->delete_run_queue.insert_point = NULL;
3100			/*
3101			 * Normally, the xpt_release_ccb() above would make sure
3102			 * that when we have more work to do, that work would
3103			 * get kicked off. However, we specifically keep
3104			 * delete_running set to 0 before the call above to
3105			 * allow other I/O to progress when many BIO_DELETE
3106			 * requests are pushed down. We set delete_running to 0
3107			 * and call daschedule again so that we don't stall if
3108			 * there are no other I/Os pending apart from BIO_DELETEs.
3109			 */
3110			softc->delete_running = 0;
3111			daschedule(periph);
3112			cam_periph_unlock(periph);
3113			while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
3114				TAILQ_REMOVE(&queue, bp1, bio_queue);
3115				bp1->bio_error = bp->bio_error;
3116				if (bp->bio_flags & BIO_ERROR) {
3117					bp1->bio_flags |= BIO_ERROR;
3118					bp1->bio_resid = bp1->bio_bcount;
3119				} else
3120					bp1->bio_resid = 0;
3121				biodone(bp1);
3122			}
3123		} else
3124			cam_periph_unlock(periph);
3125		if (bp != NULL)
3126			biodone(bp);
3127		return;
3128	}
3129	case DA_CCB_PROBE_WP:
3130	{
3131		struct scsi_mode_header_6 *mode_hdr6;
3132		struct scsi_mode_header_10 *mode_hdr10;
3133		uint8_t dev_spec;
3134
3135		if (softc->minimum_cmd_size > 6) {
3136			mode_hdr10 = (struct scsi_mode_header_10 *)csio->data_ptr;
3137			dev_spec = mode_hdr10->dev_spec;
3138		} else {
3139			mode_hdr6 = (struct scsi_mode_header_6 *)csio->data_ptr;
3140			dev_spec = mode_hdr6->dev_spec;
3141		}
3142		if (cam_ccb_status(done_ccb) == CAM_REQ_CMP) {
3143			if ((dev_spec & 0x80) != 0)
3144				softc->disk->d_flags |= DISKFLAG_WRITE_PROTECT;
3145			else
3146				softc->disk->d_flags &= ~DISKFLAG_WRITE_PROTECT;
3147		} else {
3148			int error;
3149
3150			error = daerror(done_ccb, CAM_RETRY_SELTO,
3151					SF_RETRY_UA|SF_NO_PRINT);
3152			if (error == ERESTART)
3153				return;
3154			else if (error != 0) {
3155				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3156					/* Don't wedge this device's queue */
3157					cam_release_devq(done_ccb->ccb_h.path,
3158							 /*relsim_flags*/0,
3159							 /*reduction*/0,
3160							 /*timeout*/0,
3161							 /*getcount_only*/0);
3162				}
3163			}
3164		}
3165
3166		free(csio->data_ptr, M_SCSIDA);
3167		xpt_release_ccb(done_ccb);
3168		if ((softc->flags & DA_FLAG_CAN_RC16) != 0)
3169			softc->state = DA_STATE_PROBE_RC16;
3170		else
3171			softc->state = DA_STATE_PROBE_RC;
3172		xpt_schedule(periph, priority);
3173		return;
3174	}
3175	case DA_CCB_PROBE_RC:
3176	case DA_CCB_PROBE_RC16:
3177	{
3178		struct	   scsi_read_capacity_data *rdcap;
3179		struct     scsi_read_capacity_data_long *rcaplong;
3180		char	   announce_buf[80];
3181		int	   lbp;
3182
3183		lbp = 0;
3184		rdcap = NULL;
3185		rcaplong = NULL;
3186		if (state == DA_CCB_PROBE_RC)
3187			rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
3188		else
3189			rcaplong = (struct scsi_read_capacity_data_long *)
3190				csio->data_ptr;
3191
3192		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3193			struct disk_params *dp;
3194			uint32_t block_size;
3195			uint64_t maxsector;
3196			u_int lbppbe;	/* LB per physical block exponent. */
3197			u_int lalba;	/* Lowest aligned LBA. */
3198
3199			if (state == DA_CCB_PROBE_RC) {
3200				block_size = scsi_4btoul(rdcap->length);
3201				maxsector = scsi_4btoul(rdcap->addr);
3202				lbppbe = 0;
3203				lalba = 0;
3204
3205				/*
3206				 * According to SBC-2, if the standard 10
3207				 * byte READ CAPACITY command returns 2^32,
3208				 * we should issue the 16 byte version of
3209				 * the command, since the device in question
3210				 * has more sectors than can be represented
3211				 * with the short version of the command.
3212				 */
3213				if (maxsector == 0xffffffff) {
3214					free(rdcap, M_SCSIDA);
3215					xpt_release_ccb(done_ccb);
3216					softc->state = DA_STATE_PROBE_RC16;
3217					xpt_schedule(periph, priority);
3218					return;
3219				}
3220			} else {
3221				block_size = scsi_4btoul(rcaplong->length);
3222				maxsector = scsi_8btou64(rcaplong->addr);
3223				lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3224				lalba = scsi_2btoul(rcaplong->lalba_lbp);
3225			}
3226
3227			/*
3228			 * Because GEOM code just will panic us if we
3229			 * give them an 'illegal' value we'll avoid that
3230			 * here.
3231			 */
3232			if (block_size == 0) {
3233				block_size = 512;
3234				if (maxsector == 0)
3235					maxsector = -1;
3236			}
3237			if (block_size >= MAXPHYS) {
3238				xpt_print(periph->path,
3239				    "unsupportable block size %ju\n",
3240				    (uintmax_t) block_size);
3241				announce_buf[0] = '\0';
3242				cam_periph_invalidate(periph);
3243			} else {
3244				/*
3245				 * We pass rcaplong into dasetgeom(),
3246				 * because it will only use it if it is
3247				 * non-NULL.
3248				 */
3249				dasetgeom(periph, block_size, maxsector,
3250					  rcaplong, sizeof(*rcaplong));
3251				lbp = (lalba & SRC16_LBPME_A);
3252				dp = &softc->params;
3253				snprintf(announce_buf, sizeof(announce_buf),
3254				    "%juMB (%ju %u byte sectors)",
3255				    ((uintmax_t)dp->secsize * dp->sectors) /
3256				     (1024 * 1024),
3257				    (uintmax_t)dp->sectors, dp->secsize);
3258			}
3259		} else {
3260			int	error;
3261
3262			announce_buf[0] = '\0';
3263
3264			/*
3265			 * Retry any UNIT ATTENTION type errors.  They
3266			 * are expected at boot.
3267			 */
3268			error = daerror(done_ccb, CAM_RETRY_SELTO,
3269					SF_RETRY_UA|SF_NO_PRINT);
3270			if (error == ERESTART) {
3271				/*
3272				 * A retry was scheuled, so
3273				 * just return.
3274				 */
3275				return;
3276			} else if (error != 0) {
3277				int asc, ascq;
3278				int sense_key, error_code;
3279				int have_sense;
3280				cam_status status;
3281				struct ccb_getdev cgd;
3282
3283				/* Don't wedge this device's queue */
3284				status = done_ccb->ccb_h.status;
3285				if ((status & CAM_DEV_QFRZN) != 0)
3286					cam_release_devq(done_ccb->ccb_h.path,
3287							 /*relsim_flags*/0,
3288							 /*reduction*/0,
3289							 /*timeout*/0,
3290							 /*getcount_only*/0);
3291
3292
3293				xpt_setup_ccb(&cgd.ccb_h,
3294					      done_ccb->ccb_h.path,
3295					      CAM_PRIORITY_NORMAL);
3296				cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3297				xpt_action((union ccb *)&cgd);
3298
3299				if (scsi_extract_sense_ccb(done_ccb,
3300				    &error_code, &sense_key, &asc, &ascq))
3301					have_sense = TRUE;
3302				else
3303					have_sense = FALSE;
3304
3305				/*
3306				 * If we tried READ CAPACITY(16) and failed,
3307				 * fallback to READ CAPACITY(10).
3308				 */
3309				if ((state == DA_CCB_PROBE_RC16) &&
3310				    (softc->flags & DA_FLAG_CAN_RC16) &&
3311				    (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3312					CAM_REQ_INVALID) ||
3313				     ((have_sense) &&
3314				      (error_code == SSD_CURRENT_ERROR) &&
3315				      (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3316					softc->flags &= ~DA_FLAG_CAN_RC16;
3317					free(rdcap, M_SCSIDA);
3318					xpt_release_ccb(done_ccb);
3319					softc->state = DA_STATE_PROBE_RC;
3320					xpt_schedule(periph, priority);
3321					return;
3322				} else
3323				/*
3324				 * Attach to anything that claims to be a
3325				 * direct access or optical disk device,
3326				 * as long as it doesn't return a "Logical
3327				 * unit not supported" (0x25) error.
3328				 */
3329				if ((have_sense) && (asc != 0x25)
3330				 && (error_code == SSD_CURRENT_ERROR)) {
3331					const char *sense_key_desc;
3332					const char *asc_desc;
3333
3334					dasetgeom(periph, 512, -1, NULL, 0);
3335					scsi_sense_desc(sense_key, asc, ascq,
3336							&cgd.inq_data,
3337							&sense_key_desc,
3338							&asc_desc);
3339					snprintf(announce_buf,
3340					    sizeof(announce_buf),
3341						"Attempt to query device "
3342						"size failed: %s, %s",
3343						sense_key_desc,
3344						asc_desc);
3345				} else {
3346					if (have_sense)
3347						scsi_sense_print(
3348							&done_ccb->csio);
3349					else {
3350						xpt_print(periph->path,
3351						    "got CAM status %#x\n",
3352						    done_ccb->ccb_h.status);
3353					}
3354
3355					xpt_print(periph->path, "fatal error, "
3356					    "failed to attach to device\n");
3357
3358					/*
3359					 * Free up resources.
3360					 */
3361					cam_periph_invalidate(periph);
3362				}
3363			}
3364		}
3365		free(csio->data_ptr, M_SCSIDA);
3366		if (announce_buf[0] != '\0' &&
3367		    ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
3368			/*
3369			 * Create our sysctl variables, now that we know
3370			 * we have successfully attached.
3371			 */
3372			/* increase the refcount */
3373			if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3374				taskqueue_enqueue(taskqueue_thread,
3375						  &softc->sysctl_task);
3376				xpt_announce_periph(periph, announce_buf);
3377				xpt_announce_quirks(periph, softc->quirks,
3378				    DA_Q_BIT_STRING);
3379			} else {
3380				xpt_print(periph->path, "fatal error, "
3381				    "could not acquire reference count\n");
3382			}
3383		}
3384
3385		/* We already probed the device. */
3386		if (softc->flags & DA_FLAG_PROBED) {
3387			daprobedone(periph, done_ccb);
3388			return;
3389		}
3390
3391		/* Ensure re-probe doesn't see old delete. */
3392		softc->delete_available = 0;
3393		dadeleteflag(softc, DA_DELETE_ZERO, 1);
3394		if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3395			/*
3396			 * Based on older SBC-3 spec revisions
3397			 * any of the UNMAP methods "may" be
3398			 * available via LBP given this flag so
3399			 * we flag all of them as available and
3400			 * then remove those which further
3401			 * probes confirm aren't available
3402			 * later.
3403			 *
3404			 * We could also check readcap(16) p_type
3405			 * flag to exclude one or more invalid
3406			 * write same (X) types here
3407			 */
3408			dadeleteflag(softc, DA_DELETE_WS16, 1);
3409			dadeleteflag(softc, DA_DELETE_WS10, 1);
3410			dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3411
3412			xpt_release_ccb(done_ccb);
3413			softc->state = DA_STATE_PROBE_LBP;
3414			xpt_schedule(periph, priority);
3415			return;
3416		}
3417
3418		xpt_release_ccb(done_ccb);
3419		softc->state = DA_STATE_PROBE_BDC;
3420		xpt_schedule(periph, priority);
3421		return;
3422	}
3423	case DA_CCB_PROBE_LBP:
3424	{
3425		struct scsi_vpd_logical_block_prov *lbp;
3426
3427		lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3428
3429		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3430			/*
3431			 * T10/1799-D Revision 31 states at least one of these
3432			 * must be supported but we don't currently enforce this.
3433			 */
3434			dadeleteflag(softc, DA_DELETE_WS16,
3435				     (lbp->flags & SVPD_LBP_WS16));
3436			dadeleteflag(softc, DA_DELETE_WS10,
3437				     (lbp->flags & SVPD_LBP_WS10));
3438			dadeleteflag(softc, DA_DELETE_UNMAP,
3439				     (lbp->flags & SVPD_LBP_UNMAP));
3440		} else {
3441			int error;
3442			error = daerror(done_ccb, CAM_RETRY_SELTO,
3443					SF_RETRY_UA|SF_NO_PRINT);
3444			if (error == ERESTART)
3445				return;
3446			else if (error != 0) {
3447				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3448					/* Don't wedge this device's queue */
3449					cam_release_devq(done_ccb->ccb_h.path,
3450							 /*relsim_flags*/0,
3451							 /*reduction*/0,
3452							 /*timeout*/0,
3453							 /*getcount_only*/0);
3454				}
3455
3456				/*
3457				 * Failure indicates we don't support any SBC-3
3458				 * delete methods with UNMAP
3459				 */
3460			}
3461		}
3462
3463		free(lbp, M_SCSIDA);
3464		xpt_release_ccb(done_ccb);
3465		softc->state = DA_STATE_PROBE_BLK_LIMITS;
3466		xpt_schedule(periph, priority);
3467		return;
3468	}
3469	case DA_CCB_PROBE_BLK_LIMITS:
3470	{
3471		struct scsi_vpd_block_limits *block_limits;
3472
3473		block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3474
3475		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3476			uint32_t max_txfer_len = scsi_4btoul(
3477				block_limits->max_txfer_len);
3478			uint32_t max_unmap_lba_cnt = scsi_4btoul(
3479				block_limits->max_unmap_lba_cnt);
3480			uint32_t max_unmap_blk_cnt = scsi_4btoul(
3481				block_limits->max_unmap_blk_cnt);
3482			uint64_t ws_max_blks = scsi_8btou64(
3483				block_limits->max_write_same_length);
3484
3485			if (max_txfer_len != 0) {
3486				softc->disk->d_maxsize = MIN(softc->maxio,
3487				    (off_t)max_txfer_len * softc->params.secsize);
3488			}
3489
3490			/*
3491			 * We should already support UNMAP but we check lba
3492			 * and block count to be sure
3493			 */
3494			if (max_unmap_lba_cnt != 0x00L &&
3495			    max_unmap_blk_cnt != 0x00L) {
3496				softc->unmap_max_lba = max_unmap_lba_cnt;
3497				softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3498					UNMAP_MAX_RANGES);
3499			} else {
3500				/*
3501				 * Unexpected UNMAP limits which means the
3502				 * device doesn't actually support UNMAP
3503				 */
3504				dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3505			}
3506
3507			if (ws_max_blks != 0x00L)
3508				softc->ws_max_blks = ws_max_blks;
3509		} else {
3510			int error;
3511			error = daerror(done_ccb, CAM_RETRY_SELTO,
3512					SF_RETRY_UA|SF_NO_PRINT);
3513			if (error == ERESTART)
3514				return;
3515			else if (error != 0) {
3516				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3517					/* Don't wedge this device's queue */
3518					cam_release_devq(done_ccb->ccb_h.path,
3519							 /*relsim_flags*/0,
3520							 /*reduction*/0,
3521							 /*timeout*/0,
3522							 /*getcount_only*/0);
3523				}
3524
3525				/*
3526				 * Failure here doesn't mean UNMAP is not
3527				 * supported as this is an optional page.
3528				 */
3529				softc->unmap_max_lba = 1;
3530				softc->unmap_max_ranges = 1;
3531			}
3532		}
3533
3534		free(block_limits, M_SCSIDA);
3535		xpt_release_ccb(done_ccb);
3536		softc->state = DA_STATE_PROBE_BDC;
3537		xpt_schedule(periph, priority);
3538		return;
3539	}
3540	case DA_CCB_PROBE_BDC:
3541	{
3542		struct scsi_vpd_block_characteristics *bdc;
3543
3544		bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3545
3546		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3547			/*
3548			 * Disable queue sorting for non-rotational media
3549			 * by default.
3550			 */
3551			u_int16_t old_rate = softc->disk->d_rotation_rate;
3552
3553			softc->disk->d_rotation_rate =
3554				scsi_2btoul(bdc->medium_rotation_rate);
3555			if (softc->disk->d_rotation_rate ==
3556			    SVPD_BDC_RATE_NON_ROTATING) {
3557				softc->sort_io_queue = 0;
3558			}
3559			if (softc->disk->d_rotation_rate != old_rate) {
3560				disk_attr_changed(softc->disk,
3561				    "GEOM::rotation_rate", M_NOWAIT);
3562			}
3563		} else {
3564			int error;
3565			error = daerror(done_ccb, CAM_RETRY_SELTO,
3566					SF_RETRY_UA|SF_NO_PRINT);
3567			if (error == ERESTART)
3568				return;
3569			else if (error != 0) {
3570				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3571					/* Don't wedge this device's queue */
3572					cam_release_devq(done_ccb->ccb_h.path,
3573							 /*relsim_flags*/0,
3574							 /*reduction*/0,
3575							 /*timeout*/0,
3576							 /*getcount_only*/0);
3577				}
3578			}
3579		}
3580
3581		free(bdc, M_SCSIDA);
3582		xpt_release_ccb(done_ccb);
3583		softc->state = DA_STATE_PROBE_ATA;
3584		xpt_schedule(periph, priority);
3585		return;
3586	}
3587	case DA_CCB_PROBE_ATA:
3588	{
3589		int i;
3590		struct ata_params *ata_params;
3591		int16_t *ptr;
3592
3593		ata_params = (struct ata_params *)csio->data_ptr;
3594		ptr = (uint16_t *)ata_params;
3595
3596		if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3597			uint16_t old_rate;
3598
3599			for (i = 0; i < sizeof(*ata_params) / 2; i++)
3600				ptr[i] = le16toh(ptr[i]);
3601			if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
3602			    (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3603				dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3604				if (ata_params->max_dsm_blocks != 0)
3605					softc->trim_max_ranges = min(
3606					  softc->trim_max_ranges,
3607					  ata_params->max_dsm_blocks *
3608					  ATA_DSM_BLK_RANGES);
3609			}
3610			/*
3611			 * Disable queue sorting for non-rotational media
3612			 * by default.
3613			 */
3614			old_rate = softc->disk->d_rotation_rate;
3615			softc->disk->d_rotation_rate =
3616			    ata_params->media_rotation_rate;
3617			if (softc->disk->d_rotation_rate ==
3618			    ATA_RATE_NON_ROTATING) {
3619				softc->sort_io_queue = 0;
3620			}
3621
3622			if (softc->disk->d_rotation_rate != old_rate) {
3623				disk_attr_changed(softc->disk,
3624				    "GEOM::rotation_rate", M_NOWAIT);
3625			}
3626		} else {
3627			int error;
3628			error = daerror(done_ccb, CAM_RETRY_SELTO,
3629					SF_RETRY_UA|SF_NO_PRINT);
3630			if (error == ERESTART)
3631				return;
3632			else if (error != 0) {
3633				if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3634					/* Don't wedge this device's queue */
3635					cam_release_devq(done_ccb->ccb_h.path,
3636							 /*relsim_flags*/0,
3637							 /*reduction*/0,
3638							 /*timeout*/0,
3639							 /*getcount_only*/0);
3640				}
3641			}
3642		}
3643
3644		free(ata_params, M_SCSIDA);
3645		daprobedone(periph, done_ccb);
3646		return;
3647	}
3648	case DA_CCB_DUMP:
3649		/* No-op.  We're polling */
3650		return;
3651	case DA_CCB_TUR:
3652	{
3653		if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3654
3655			if (daerror(done_ccb, CAM_RETRY_SELTO,
3656			    SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3657			    ERESTART)
3658				return;
3659			if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3660				cam_release_devq(done_ccb->ccb_h.path,
3661						 /*relsim_flags*/0,
3662						 /*reduction*/0,
3663						 /*timeout*/0,
3664						 /*getcount_only*/0);
3665		}
3666		xpt_release_ccb(done_ccb);
3667		cam_periph_release_locked(periph);
3668		return;
3669	}
3670	default:
3671		break;
3672	}
3673	xpt_release_ccb(done_ccb);
3674}
3675
3676static void
3677dareprobe(struct cam_periph *periph)
3678{
3679	struct da_softc	  *softc;
3680	cam_status status;
3681
3682	softc = (struct da_softc *)periph->softc;
3683
3684	/* Probe in progress; don't interfere. */
3685	if (softc->state != DA_STATE_NORMAL)
3686		return;
3687
3688	status = cam_periph_acquire(periph);
3689	KASSERT(status == CAM_REQ_CMP,
3690	    ("dareprobe: cam_periph_acquire failed"));
3691
3692	softc->state = DA_STATE_PROBE_WP;
3693	xpt_schedule(periph, CAM_PRIORITY_DEV);
3694}
3695
3696static int
3697daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3698{
3699	struct da_softc	  *softc;
3700	struct cam_periph *periph;
3701	int error, error_code, sense_key, asc, ascq;
3702
3703	periph = xpt_path_periph(ccb->ccb_h.path);
3704	softc = (struct da_softc *)periph->softc;
3705
3706 	/*
3707	 * Automatically detect devices that do not support
3708 	 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3709 	 */
3710	error = 0;
3711	if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3712		error = cmd6workaround(ccb);
3713	} else if (scsi_extract_sense_ccb(ccb,
3714	    &error_code, &sense_key, &asc, &ascq)) {
3715		if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3716 			error = cmd6workaround(ccb);
3717		/*
3718		 * If the target replied with CAPACITY DATA HAS CHANGED UA,
3719		 * query the capacity and notify upper layers.
3720		 */
3721		else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3722		    asc == 0x2A && ascq == 0x09) {
3723			xpt_print(periph->path, "Capacity data has changed\n");
3724			softc->flags &= ~DA_FLAG_PROBED;
3725			dareprobe(periph);
3726			sense_flags |= SF_NO_PRINT;
3727		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3728		    asc == 0x28 && ascq == 0x00) {
3729			softc->flags &= ~DA_FLAG_PROBED;
3730			disk_media_changed(softc->disk, M_NOWAIT);
3731		} else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3732		    asc == 0x3F && ascq == 0x03) {
3733			xpt_print(periph->path, "INQUIRY data has changed\n");
3734			softc->flags &= ~DA_FLAG_PROBED;
3735			dareprobe(periph);
3736			sense_flags |= SF_NO_PRINT;
3737		} else if (sense_key == SSD_KEY_NOT_READY &&
3738		    asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
3739			softc->flags |= DA_FLAG_PACK_INVALID;
3740			disk_media_gone(softc->disk, M_NOWAIT);
3741		}
3742	}
3743	if (error == ERESTART)
3744		return (ERESTART);
3745
3746	/*
3747	 * XXX
3748	 * Until we have a better way of doing pack validation,
3749	 * don't treat UAs as errors.
3750	 */
3751	sense_flags |= SF_RETRY_UA;
3752
3753	if (softc->quirks & DA_Q_RETRY_BUSY)
3754		sense_flags |= SF_RETRY_BUSY;
3755	return(cam_periph_error(ccb, cam_flags, sense_flags,
3756				&softc->saved_ccb));
3757}
3758
3759static void
3760damediapoll(void *arg)
3761{
3762	struct cam_periph *periph = arg;
3763	struct da_softc *softc = periph->softc;
3764
3765	if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
3766		if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3767			softc->tur = 1;
3768			daschedule(periph);
3769		}
3770	}
3771	/* Queue us up again */
3772	if (da_poll_period != 0)
3773		callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3774}
3775
3776static void
3777daprevent(struct cam_periph *periph, int action)
3778{
3779	struct	da_softc *softc;
3780	union	ccb *ccb;
3781	int	error;
3782
3783	softc = (struct da_softc *)periph->softc;
3784
3785	if (((action == PR_ALLOW)
3786	  && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3787	 || ((action == PR_PREVENT)
3788	  && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3789		return;
3790	}
3791
3792	ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3793
3794	scsi_prevent(&ccb->csio,
3795		     /*retries*/1,
3796		     /*cbcfp*/dadone,
3797		     MSG_SIMPLE_Q_TAG,
3798		     action,
3799		     SSD_FULL_SIZE,
3800		     5000);
3801
3802	error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3803	    SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
3804
3805	if (error == 0) {
3806		if (action == PR_ALLOW)
3807			softc->flags &= ~DA_FLAG_PACK_LOCKED;
3808		else
3809			softc->flags |= DA_FLAG_PACK_LOCKED;
3810	}
3811
3812	xpt_release_ccb(ccb);
3813}
3814
3815static void
3816dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3817	  struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3818{
3819	struct ccb_calc_geometry ccg;
3820	struct da_softc *softc;
3821	struct disk_params *dp;
3822	u_int lbppbe, lalba;
3823	int error;
3824
3825	softc = (struct da_softc *)periph->softc;
3826
3827	dp = &softc->params;
3828	dp->secsize = block_len;
3829	dp->sectors = maxsector + 1;
3830	if (rcaplong != NULL) {
3831		lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3832		lalba = scsi_2btoul(rcaplong->lalba_lbp);
3833		lalba &= SRC16_LALBA_A;
3834	} else {
3835		lbppbe = 0;
3836		lalba = 0;
3837	}
3838
3839	if (lbppbe > 0) {
3840		dp->stripesize = block_len << lbppbe;
3841		dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3842		    dp->stripesize;
3843	} else if (softc->quirks & DA_Q_4K) {
3844		dp->stripesize = 4096;
3845		dp->stripeoffset = 0;
3846	} else {
3847		dp->stripesize = 0;
3848		dp->stripeoffset = 0;
3849	}
3850	/*
3851	 * Have the controller provide us with a geometry
3852	 * for this disk.  The only time the geometry
3853	 * matters is when we boot and the controller
3854	 * is the only one knowledgeable enough to come
3855	 * up with something that will make this a bootable
3856	 * device.
3857	 */
3858	xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3859	ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3860	ccg.block_size = dp->secsize;
3861	ccg.volume_size = dp->sectors;
3862	ccg.heads = 0;
3863	ccg.secs_per_track = 0;
3864	ccg.cylinders = 0;
3865	xpt_action((union ccb*)&ccg);
3866	if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3867		/*
3868		 * We don't know what went wrong here- but just pick
3869		 * a geometry so we don't have nasty things like divide
3870		 * by zero.
3871		 */
3872		dp->heads = 255;
3873		dp->secs_per_track = 255;
3874		dp->cylinders = dp->sectors / (255 * 255);
3875		if (dp->cylinders == 0) {
3876			dp->cylinders = 1;
3877		}
3878	} else {
3879		dp->heads = ccg.heads;
3880		dp->secs_per_track = ccg.secs_per_track;
3881		dp->cylinders = ccg.cylinders;
3882	}
3883
3884	/*
3885	 * If the user supplied a read capacity buffer, and if it is
3886	 * different than the previous buffer, update the data in the EDT.
3887	 * If it's the same, we don't bother.  This avoids sending an
3888	 * update every time someone opens this device.
3889	 */
3890	if ((rcaplong != NULL)
3891	 && (bcmp(rcaplong, &softc->rcaplong,
3892		  min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3893		struct ccb_dev_advinfo cdai;
3894
3895		xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3896		cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3897		cdai.buftype = CDAI_TYPE_RCAPLONG;
3898		cdai.flags = CDAI_FLAG_STORE;
3899		cdai.bufsiz = rcap_len;
3900		cdai.buf = (uint8_t *)rcaplong;
3901		xpt_action((union ccb *)&cdai);
3902		if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3903			cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3904		if (cdai.ccb_h.status != CAM_REQ_CMP) {
3905			xpt_print(periph->path, "%s: failed to set read "
3906				  "capacity advinfo\n", __func__);
3907			/* Use cam_error_print() to decode the status */
3908			cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3909					CAM_EPF_ALL);
3910		} else {
3911			bcopy(rcaplong, &softc->rcaplong,
3912			      min(sizeof(softc->rcaplong), rcap_len));
3913		}
3914	}
3915
3916	softc->disk->d_sectorsize = softc->params.secsize;
3917	softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3918	softc->disk->d_stripesize = softc->params.stripesize;
3919	softc->disk->d_stripeoffset = softc->params.stripeoffset;
3920	/* XXX: these are not actually "firmware" values, so they may be wrong */
3921	softc->disk->d_fwsectors = softc->params.secs_per_track;
3922	softc->disk->d_fwheads = softc->params.heads;
3923	softc->disk->d_devstat->block_size = softc->params.secsize;
3924	softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3925
3926	error = disk_resize(softc->disk, M_NOWAIT);
3927	if (error != 0)
3928		xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
3929}
3930
3931static void
3932dasendorderedtag(void *arg)
3933{
3934	struct da_softc *softc = arg;
3935
3936	if (da_send_ordered) {
3937		if (!LIST_EMPTY(&softc->pending_ccbs)) {
3938			if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
3939				softc->flags |= DA_FLAG_NEED_OTAG;
3940			softc->flags &= ~DA_FLAG_WAS_OTAG;
3941		}
3942	}
3943	/* Queue us up again */
3944	callout_reset(&softc->sendordered_c,
3945	    (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3946	    dasendorderedtag, softc);
3947}
3948
3949/*
3950 * Step through all DA peripheral drivers, and if the device is still open,
3951 * sync the disk cache to physical media.
3952 */
3953static void
3954dashutdown(void * arg, int howto)
3955{
3956	struct cam_periph *periph;
3957	struct da_softc *softc;
3958	union ccb *ccb;
3959	int error;
3960
3961	CAM_PERIPH_FOREACH(periph, &dadriver) {
3962		softc = (struct da_softc *)periph->softc;
3963		if (SCHEDULER_STOPPED()) {
3964			/* If we paniced with the lock held, do not recurse. */
3965			if (!cam_periph_owned(periph) &&
3966			    (softc->flags & DA_FLAG_OPEN)) {
3967				dadump(softc->disk, NULL, 0, 0, 0);
3968			}
3969			continue;
3970		}
3971		cam_periph_lock(periph);
3972
3973		/*
3974		 * We only sync the cache if the drive is still open, and
3975		 * if the drive is capable of it..
3976		 */
3977		if (((softc->flags & DA_FLAG_OPEN) == 0)
3978		 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
3979			cam_periph_unlock(periph);
3980			continue;
3981		}
3982
3983		ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3984		scsi_synchronize_cache(&ccb->csio,
3985				       /*retries*/0,
3986				       /*cbfcnp*/dadone,
3987				       MSG_SIMPLE_Q_TAG,
3988				       /*begin_lba*/0, /* whole disk */
3989				       /*lb_count*/0,
3990				       SSD_FULL_SIZE,
3991				       60 * 60 * 1000);
3992
3993		error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
3994		    /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
3995		    softc->disk->d_devstat);
3996		if (error != 0)
3997			xpt_print(periph->path, "Synchronize cache failed\n");
3998		xpt_release_ccb(ccb);
3999		cam_periph_unlock(periph);
4000	}
4001}
4002
4003#else /* !_KERNEL */
4004
4005/*
4006 * XXX These are only left out of the kernel build to silence warnings.  If,
4007 * for some reason these functions are used in the kernel, the ifdefs should
4008 * be moved so they are included both in the kernel and userland.
4009 */
4010void
4011scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
4012		 void (*cbfcnp)(struct cam_periph *, union ccb *),
4013		 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
4014		 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4015		 u_int32_t timeout)
4016{
4017	struct scsi_format_unit *scsi_cmd;
4018
4019	scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
4020	scsi_cmd->opcode = FORMAT_UNIT;
4021	scsi_cmd->byte2 = byte2;
4022	scsi_ulto2b(ileave, scsi_cmd->interleave);
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
4036void
4037scsi_read_defects(struct ccb_scsiio *csio, uint32_t retries,
4038		  void (*cbfcnp)(struct cam_periph *, union ccb *),
4039		  uint8_t tag_action, uint8_t list_format,
4040		  uint32_t addr_desc_index, uint8_t *data_ptr,
4041		  uint32_t dxfer_len, int minimum_cmd_size,
4042		  uint8_t sense_len, uint32_t timeout)
4043{
4044	uint8_t cdb_len;
4045
4046	/*
4047	 * These conditions allow using the 10 byte command.  Otherwise we
4048	 * need to use the 12 byte command.
4049	 */
4050	if ((minimum_cmd_size <= 10)
4051	 && (addr_desc_index == 0)
4052	 && (dxfer_len <= SRDD10_MAX_LENGTH)) {
4053		struct scsi_read_defect_data_10 *cdb10;
4054
4055		cdb10 = (struct scsi_read_defect_data_10 *)
4056			&csio->cdb_io.cdb_bytes;
4057
4058		cdb_len = sizeof(*cdb10);
4059		bzero(cdb10, cdb_len);
4060                cdb10->opcode = READ_DEFECT_DATA_10;
4061                cdb10->format = list_format;
4062                scsi_ulto2b(dxfer_len, cdb10->alloc_length);
4063	} else {
4064		struct scsi_read_defect_data_12 *cdb12;
4065
4066		cdb12 = (struct scsi_read_defect_data_12 *)
4067			&csio->cdb_io.cdb_bytes;
4068
4069		cdb_len = sizeof(*cdb12);
4070		bzero(cdb12, cdb_len);
4071                cdb12->opcode = READ_DEFECT_DATA_12;
4072                cdb12->format = list_format;
4073                scsi_ulto4b(dxfer_len, cdb12->alloc_length);
4074		scsi_ulto4b(addr_desc_index, cdb12->address_descriptor_index);
4075	}
4076
4077	cam_fill_csio(csio,
4078		      retries,
4079		      cbfcnp,
4080		      /*flags*/ CAM_DIR_IN,
4081		      tag_action,
4082		      data_ptr,
4083		      dxfer_len,
4084		      sense_len,
4085		      cdb_len,
4086		      timeout);
4087}
4088
4089void
4090scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
4091	      void (*cbfcnp)(struct cam_periph *, union ccb *),
4092	      u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
4093	      u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4094	      u_int32_t timeout)
4095{
4096	struct scsi_sanitize *scsi_cmd;
4097
4098	scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
4099	scsi_cmd->opcode = SANITIZE;
4100	scsi_cmd->byte2 = byte2;
4101	scsi_cmd->control = control;
4102	scsi_ulto2b(dxfer_len, scsi_cmd->length);
4103
4104	cam_fill_csio(csio,
4105		      retries,
4106		      cbfcnp,
4107		      /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
4108		      tag_action,
4109		      data_ptr,
4110		      dxfer_len,
4111		      sense_len,
4112		      sizeof(*scsi_cmd),
4113		      timeout);
4114}
4115
4116#endif /* _KERNEL */
4117