2 * Implementation of SCSI Direct Access Peripheral driver for CAM.
4 * Copyright (c) 1997 Justin T. Gibbs.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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.
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
28 * $FreeBSD: src/sys/cam/scsi/scsi_da.c,v 1.42.2.46 2003/10/21 22:18:19 thomas Exp $
29 * $DragonFly: src/sys/bus/cam/scsi/scsi_da.c,v 1.57.2.1 2008/07/18 00:08:23 dillon Exp $
32 #include <sys/param.h>
33 #include <sys/bootmaj.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
39 #include <sys/sysctl.h>
40 #include <sys/taskqueue.h>
43 #include <sys/devicestat.h>
45 #include <sys/dtype.h>
46 #include <sys/eventhandler.h>
47 #include <sys/malloc.h>
51 #include <sys/thread2.h>
64 #include "../cam_ccb.h"
65 #include "../cam_extend.h"
66 #include "../cam_periph.h"
67 #include "../cam_xpt_periph.h"
68 #include "../cam_sim.h"
70 #include "scsi_message.h"
84 DA_FLAG_PACK_INVALID
= 0x001,
85 DA_FLAG_NEW_PACK
= 0x002,
86 DA_FLAG_PACK_LOCKED
= 0x004,
87 DA_FLAG_PACK_REMOVABLE
= 0x008,
88 DA_FLAG_TAGGED_QUEUING
= 0x010,
89 DA_FLAG_NEED_OTAG
= 0x020,
90 DA_FLAG_WENT_IDLE
= 0x040,
91 DA_FLAG_RETRY_UA
= 0x080,
93 DA_FLAG_SCTX_INIT
= 0x200
98 DA_Q_NO_SYNC_CACHE
= 0x01,
99 DA_Q_NO_6_BYTE
= 0x02,
100 DA_Q_NO_PREVENT
= 0x04
105 DA_CCB_PROBE2
= 0x02,
106 DA_CCB_BUFFER_IO
= 0x03,
107 DA_CCB_WAITING
= 0x04,
109 DA_CCB_TYPE_MASK
= 0x0F,
110 DA_CCB_RETRY_UA
= 0x10
113 /* Offsets into our private area for storing information */
114 #define ccb_state ppriv_field0
115 #define ccb_bio ppriv_ptr1
120 u_int8_t secs_per_track
;
121 u_int32_t secsize
; /* Number of bytes/sector */
122 u_int64_t sectors
; /* total number sectors */
126 struct bio_queue_head bio_queue
;
127 struct devstat device_stats
;
128 SLIST_ENTRY(da_softc
) links
;
129 LIST_HEAD(, ccb_hdr
) pending_ccbs
;
133 int minimum_cmd_size
;
134 int ordered_tag_count
;
135 int outstanding_cmds
;
136 struct disk_params params
;
139 struct task sysctl_task
;
140 struct sysctl_ctx_list sysctl_ctx
;
141 struct sysctl_oid
*sysctl_tree
;
142 struct callout sendordered_c
;
145 struct da_quirk_entry
{
146 struct scsi_inquiry_pattern inq_pat
;
150 static const char quantum
[] = "QUANTUM";
151 static const char microp
[] = "MICROP";
153 static struct da_quirk_entry da_quirk_table
[] =
155 /* SPI, FC devices */
158 * Fujitsu M2513A MO drives.
159 * Tested devices: M2513A2 firmware versions 1200 & 1300.
160 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
161 * Reported by: W.Scholten <whs@xs4all.nl>
163 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "FUJITSU", "M2513A", "*"},
164 /*quirks*/ DA_Q_NO_SYNC_CACHE
168 {T_OPTICAL
, SIP_MEDIA_REMOVABLE
, "FUJITSU", "M2513A", "*"},
169 /*quirks*/ DA_Q_NO_SYNC_CACHE
173 * This particular Fujitsu drive doesn't like the
174 * synchronize cache command.
175 * Reported by: Tom Jackson <toj@gorilla.net>
177 {T_DIRECT
, SIP_MEDIA_FIXED
, "FUJITSU", "M2954*", "*"},
178 /*quirks*/ DA_Q_NO_SYNC_CACHE
182 * This drive doesn't like the synchronize cache command
183 * either. Reported by: Matthew Jacob <mjacob@feral.com>
184 * in NetBSD PR kern/6027, August 24, 1998.
186 {T_DIRECT
, SIP_MEDIA_FIXED
, microp
, "2217*", "*"},
187 /*quirks*/ DA_Q_NO_SYNC_CACHE
191 * This drive doesn't like the synchronize cache command
192 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
195 {T_DIRECT
, SIP_MEDIA_FIXED
, microp
, "2112*", "*"},
196 /*quirks*/ DA_Q_NO_SYNC_CACHE
200 * Doesn't like the synchronize cache command.
201 * Reported by: Blaz Zupan <blaz@gold.amis.net>
203 {T_DIRECT
, SIP_MEDIA_FIXED
, "NEC", "D3847*", "*"},
204 /*quirks*/ DA_Q_NO_SYNC_CACHE
208 * Doesn't like the synchronize cache command.
209 * Reported by: Blaz Zupan <blaz@gold.amis.net>
211 {T_DIRECT
, SIP_MEDIA_FIXED
, quantum
, "MAVERICK 540S", "*"},
212 /*quirks*/ DA_Q_NO_SYNC_CACHE
216 * Doesn't like the synchronize cache command.
218 {T_DIRECT
, SIP_MEDIA_FIXED
, quantum
, "LPS525S", "*"},
219 /*quirks*/ DA_Q_NO_SYNC_CACHE
223 * Doesn't like the synchronize cache command.
224 * Reported by: walter@pelissero.de
226 {T_DIRECT
, SIP_MEDIA_FIXED
, quantum
, "LPS540S", "*"},
227 /*quirks*/ DA_Q_NO_SYNC_CACHE
231 * Doesn't work correctly with 6 byte reads/writes.
232 * Returns illegal request, and points to byte 9 of the
234 * Reported by: Adam McDougall <bsdx@spawnet.com>
236 {T_DIRECT
, SIP_MEDIA_FIXED
, quantum
, "VIKING 4*", "*"},
237 /*quirks*/ DA_Q_NO_6_BYTE
241 {T_DIRECT
, SIP_MEDIA_FIXED
, quantum
, "VIKING 2*", "*"},
242 /*quirks*/ DA_Q_NO_6_BYTE
246 * Doesn't like the synchronize cache command.
247 * Reported by: walter@pelissero.de
249 {T_DIRECT
, SIP_MEDIA_FIXED
, "CONNER", "CP3500*", "*"},
250 /*quirks*/ DA_Q_NO_SYNC_CACHE
254 * The CISS RAID controllers do not support SYNC_CACHE
256 {T_DIRECT
, SIP_MEDIA_FIXED
, "COMPAQ", "RAID*", "*"},
257 /*quirks*/ DA_Q_NO_SYNC_CACHE
259 /* USB mass storage devices supported by umass(4) */
262 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
265 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "EXATEL", "i-BEAD10*", "*"},
266 /*quirks*/ DA_Q_NO_SYNC_CACHE
270 * Power Quotient Int. (PQI) USB flash key
273 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Generic*", "USB Flash Disk*",
274 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
278 * Creative Nomad MUVO mp3 player (USB)
281 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "CREATIVE", "NOMAD_MUVO", "*"},
282 /*quirks*/ DA_Q_NO_SYNC_CACHE
|DA_Q_NO_PREVENT
286 * Jungsoft NEXDISK USB flash key
289 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "JUNGSOFT", "NEXDISK*", "*"},
290 /*quirks*/ DA_Q_NO_SYNC_CACHE
294 * FreeDik USB Mini Data Drive
297 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "FreeDik*", "Mini Data Drive",
298 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
302 * Sigmatel USB Flash MP3 Player
305 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "SigmaTel", "MSCN", "*"},
306 /*quirks*/ DA_Q_NO_SYNC_CACHE
|DA_Q_NO_PREVENT
310 * Neuros USB Digital Audio Computer
313 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "NEUROS", "dig. audio comp.",
314 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
318 * SEAGRAND NP-900 MP3 Player
321 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "SEAGRAND", "NP-900*", "*"},
322 /*quirks*/ DA_Q_NO_SYNC_CACHE
|DA_Q_NO_PREVENT
326 * iRiver iFP MP3 player (with UMS Firmware)
327 * PR: kern/54881, i386/63941, kern/66124
329 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "iRiver", "iFP*", "*"},
330 /*quirks*/ DA_Q_NO_SYNC_CACHE
334 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
337 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "FL" , "Nex*", "*"},
338 /*quirks*/ DA_Q_NO_SYNC_CACHE
342 * ZICPlay USB MP3 Player with FM
345 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "ACTIONS*" , "USB DISK*", "*"},
346 /*quirks*/ DA_Q_NO_SYNC_CACHE
350 * TEAC USB floppy mechanisms
352 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "TEAC" , "FD-05*", "*"},
353 /*quirks*/ DA_Q_NO_SYNC_CACHE
357 * Kingston DataTraveler II+ USB Pen-Drive.
358 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
360 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Kingston" , "DataTraveler II+",
361 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
365 * Motorola E398 Mobile Phone (TransFlash memory card).
366 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
369 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Motorola" , "Motorola Phone",
370 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
374 * Qware BeatZkey! Pro
377 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "GENERIC", "USB DISK DEVICE",
378 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
382 * Time DPA20B 1GB MP3 Player
385 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "USB2.0*", "(FS) FLASH DISK*",
386 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
390 * Samsung USB key 128Mb
393 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "USB-DISK", "FreeDik-FlashUsb",
394 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
398 * Kingston DataTraveler 2.0 USB Flash memory.
401 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Kingston", "DataTraveler 2.0",
402 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
406 * Creative MUVO Slim mp3 player (USB)
409 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "CREATIVE", "MuVo Slim",
410 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
|DA_Q_NO_PREVENT
414 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
417 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Generic*", "MUSIC DISK",
418 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
422 * SanDisk Micro Cruzer 128MB
425 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "SanDisk" , "Micro Cruzer",
426 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
430 * TOSHIBA TransMemory USB sticks
433 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "TOSHIBA", "TransMemory",
434 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
439 * PR: usb/75578, usb/72344, usb/65436
441 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "*" , "USB DISK*",
442 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
446 * Genesys 6-in-1 Card Reader
449 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Generic*", "STORAGE DEVICE*",
450 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
454 * Rekam Digital CAMERA
457 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "CAMERA*", "4MP-9J6*",
458 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
462 * iRiver H10 MP3 player
465 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "iriver", "H10*",
466 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
470 * iRiver U10 MP3 player
473 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "iriver", "U10*",
474 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
481 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "X-Micro", "Flash Disk",
482 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
486 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
489 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "EM732X", "MP3 Player*",
490 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
497 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "DENVER", "MP3 PLAYER",
498 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
502 * Philips USB Key Audio KEY013
505 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "PHILIPS", "Key*", "*"},
506 /*quirks*/ DA_Q_NO_SYNC_CACHE
| DA_Q_NO_PREVENT
513 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "JNC*" , "MP3 Player*",
514 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
521 {T_DIRECT
, SIP_MEDIA_FIXED
, "SAMSUNG", "MP0402H", "*"},
522 /*quirks*/ DA_Q_NO_SYNC_CACHE
526 * I/O Magic USB flash - Giga Bank
529 {T_DIRECT
, SIP_MEDIA_FIXED
, "GS-Magic", "stor*", "*"},
530 /*quirks*/ DA_Q_NO_SYNC_CACHE
534 * JoyFly 128mb USB Flash Drive
537 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "USB 2.0", "Flash Disk*",
538 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
545 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "ChipsBnk", "USB*",
546 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
550 * Samsung YP-U3 mp3-player
553 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Samsung", "YP-U3",
554 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
557 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "Netac", "OnlyDisk*",
558 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
562 * USB 2.0 (HS) Flash Disk MP3 player
564 {T_DIRECT
, SIP_MEDIA_REMOVABLE
, "USB 2.0", "(HS) Flash Disk", "*"},
565 /*quirks*/ DA_Q_NO_SYNC_CACHE
569 static d_open_t daopen
;
570 static d_close_t daclose
;
571 static d_strategy_t dastrategy
;
572 static d_dump_t dadump
;
573 static periph_init_t dainit
;
574 static void daasync(void *callback_arg
, u_int32_t code
,
575 struct cam_path
*path
, void *arg
);
576 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS
);
577 static periph_ctor_t daregister
;
578 static periph_dtor_t dacleanup
;
579 static periph_start_t dastart
;
580 static periph_oninv_t daoninvalidate
;
581 static void dadone(struct cam_periph
*periph
,
582 union ccb
*done_ccb
);
583 static int daerror(union ccb
*ccb
, u_int32_t cam_flags
,
584 u_int32_t sense_flags
);
585 static void daprevent(struct cam_periph
*periph
, int action
);
586 static int dagetcapacity(struct cam_periph
*periph
);
587 static void dasetgeom(struct cam_periph
*periph
, uint32_t block_len
,
590 static timeout_t dasendorderedtag
;
591 static void dashutdown(void *arg
, int howto
);
593 #ifndef DA_DEFAULT_TIMEOUT
594 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
597 #ifndef DA_DEFAULT_RETRY
598 #define DA_DEFAULT_RETRY 4
601 #ifndef DA_DEFAULT_SEND_ORDERED
602 #define DA_DEFAULT_SEND_ORDERED 1
605 static int da_retry_count
= DA_DEFAULT_RETRY
;
606 static int da_default_timeout
= DA_DEFAULT_TIMEOUT
;
607 static int da_send_ordered
= DA_DEFAULT_SEND_ORDERED
;
608 static struct callout dasendorderedtag_ch
;
610 SYSCTL_NODE(_kern_cam
, OID_AUTO
, da
, CTLFLAG_RD
, 0,
611 "CAM Direct Access Disk driver");
612 SYSCTL_INT(_kern_cam_da
, OID_AUTO
, retry_count
, CTLFLAG_RW
,
613 &da_retry_count
, 0, "Normal I/O retry count");
614 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count
);
615 SYSCTL_INT(_kern_cam_da
, OID_AUTO
, default_timeout
, CTLFLAG_RW
,
616 &da_default_timeout
, 0, "Normal I/O timeout (in seconds)");
617 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout
);
618 SYSCTL_INT(_kern_cam_da
, OID_AUTO
, da_send_ordered
, CTLFLAG_RW
,
619 &da_send_ordered
, 0, "Send Ordered Tags");
620 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered
);
623 * DA_ORDEREDTAG_INTERVAL determines how often, relative
624 * to the default timeout, we check to see whether an ordered
625 * tagged transaction is appropriate to prevent simple tag
626 * starvation. Since we'd like to ensure that there is at least
627 * 1/2 of the timeout length left for a starved transaction to
628 * complete after we've sent an ordered tag, we must poll at least
629 * four times in every timeout period. This takes care of the worst
630 * case where a starved transaction starts during an interval that
631 * meets the requirement "don't send an ordered tag" test so it takes
632 * us two intervals to determine that a tag must be sent.
634 #ifndef DA_ORDEREDTAG_INTERVAL
635 #define DA_ORDEREDTAG_INTERVAL 4
638 static struct periph_driver dadriver
=
641 TAILQ_HEAD_INITIALIZER(dadriver
.units
), /* generation */ 0
644 PERIPHDRIVER_DECLARE(da
, dadriver
);
646 static struct dev_ops da_ops
= {
647 { "da", DA_CDEV_MAJOR
, D_DISK
},
651 .d_write
= physwrite
,
652 .d_strategy
= dastrategy
,
656 static struct extend_array
*daperiphs
;
658 MALLOC_DEFINE(M_SCSIDA
, "scsi_da", "scsi_da buffers");
661 daopen(struct dev_open_args
*ap
)
663 cdev_t dev
= ap
->a_head
.a_dev
;
664 struct cam_periph
*periph
;
665 struct da_softc
*softc
;
666 struct disk_info info
;
671 periph
= cam_extend_get(daperiphs
, unit
);
672 if (periph
== NULL
) {
676 if (cam_periph_acquire(periph
) != CAM_REQ_CMP
) {
680 cam_periph_lock(periph
);
681 if ((error
= cam_periph_hold(periph
, PCATCH
)) != 0) {
682 cam_periph_unlock(periph
);
683 cam_periph_release(periph
);
687 unit
= periph
->unit_number
;
688 softc
= (struct da_softc
*)periph
->softc
;
689 softc
->flags
|= DA_FLAG_OPEN
;
691 CAM_DEBUG(periph
->path
, CAM_DEBUG_TRACE
,
692 ("daopen: dev=%s (unit %d)\n", devtoname(dev
),
695 if ((softc
->flags
& DA_FLAG_PACK_INVALID
) != 0) {
696 /* Invalidate our pack information. */
697 disk_invalidate(&softc
->disk
);
698 softc
->flags
&= ~DA_FLAG_PACK_INVALID
;
701 error
= dagetcapacity(periph
);
704 /* Do a read capacity */
706 struct scsi_read_capacity_data
*rcap
;
709 rcap
= kmalloc(sizeof(*rcap
), M_SCSIDA
, M_INTWAIT
| M_ZERO
);
711 ccb
= cam_periph_getccb(periph
, /*priority*/1);
712 scsi_read_capacity(&ccb
->csio
,
719 ccb
->ccb_h
.ccb_bio
= NULL
;
721 error
= cam_periph_runccb(ccb
, daerror
, /*cam_flags*/0,
722 /*sense_flags*/SF_RETRY_UA
|
724 &softc
->device_stats
);
726 xpt_release_ccb(ccb
);
729 dasetgeom(periph
, rcap
);
732 kfree(rcap
, M_SCSIDA
);
737 struct ccb_getdev cgd
;
739 /* Build disk information structure */
740 bzero(&info
, sizeof(info
));
741 info
.d_type
= DTYPE_SCSI
;
744 * Grab the inquiry data to get the vendor and product names.
745 * Put them in the typename and packname for the label.
747 xpt_setup_ccb(&cgd
.ccb_h
, periph
->path
, /*priority*/ 1);
748 cgd
.ccb_h
.func_code
= XPT_GDEV_TYPE
;
749 xpt_action((union ccb
*)&cgd
);
752 strncpy(label
->d_typename
, cgd
.inq_data
.vendor
,
753 min(SID_VENDOR_SIZE
, sizeof(label
->d_typename
)));
754 strncpy(label
->d_packname
, cgd
.inq_data
.product
,
755 min(SID_PRODUCT_SIZE
, sizeof(label
->d_packname
)));
761 info
.d_media_blksize
= softc
->params
.secsize
;
762 info
.d_media_blocks
= softc
->params
.sectors
;
763 info
.d_media_size
= 0;
768 info
.d_secpertrack
= softc
->params
.secs_per_track
;
769 info
.d_nheads
= softc
->params
.heads
;
770 info
.d_ncylinders
= softc
->params
.cylinders
;
771 info
.d_secpercyl
= softc
->params
.heads
*
772 softc
->params
.secs_per_track
;
773 disk_setdiskinfo(&softc
->disk
, &info
);
776 * Check to see whether or not the blocksize is set yet.
777 * If it isn't, set it and then clear the blocksize
778 * unavailable flag for the device statistics.
780 if ((softc
->device_stats
.flags
& DEVSTAT_BS_UNAVAILABLE
) != 0){
781 softc
->device_stats
.block_size
= softc
->params
.secsize
;
782 softc
->device_stats
.flags
&= ~DEVSTAT_BS_UNAVAILABLE
;
787 if ((softc
->flags
& DA_FLAG_PACK_REMOVABLE
) != 0 &&
788 (softc
->quirks
& DA_Q_NO_PREVENT
) == 0)
789 daprevent(periph
, PR_PREVENT
);
791 softc
->flags
&= ~DA_FLAG_OPEN
;
792 cam_periph_release(periph
);
794 cam_periph_unhold(periph
, 1);
799 daclose(struct dev_close_args
*ap
)
801 cdev_t dev
= ap
->a_head
.a_dev
;
802 struct cam_periph
*periph
;
803 struct da_softc
*softc
;
808 periph
= cam_extend_get(daperiphs
, unit
);
812 cam_periph_lock(periph
);
813 if ((error
= cam_periph_hold(periph
, 0)) != 0) {
814 cam_periph_unlock(periph
);
815 cam_periph_release(periph
);
819 softc
= (struct da_softc
*)periph
->softc
;
821 if ((softc
->quirks
& DA_Q_NO_SYNC_CACHE
) == 0) {
824 ccb
= cam_periph_getccb(periph
, /*priority*/1);
826 scsi_synchronize_cache(&ccb
->csio
,
830 /*begin_lba*/0,/* Cover the whole disk */
835 cam_periph_runccb(ccb
, /*error_routine*/NULL
, /*cam_flags*/0,
836 /*sense_flags*/SF_RETRY_UA
,
837 &softc
->device_stats
);
839 if ((ccb
->ccb_h
.status
& CAM_STATUS_MASK
) != CAM_REQ_CMP
) {
840 if ((ccb
->ccb_h
.status
& CAM_STATUS_MASK
) ==
841 CAM_SCSI_STATUS_ERROR
) {
843 int sense_key
, error_code
;
845 scsi_extract_sense(&ccb
->csio
.sense_data
,
849 if (sense_key
!= SSD_KEY_ILLEGAL_REQUEST
)
850 scsi_sense_print(&ccb
->csio
);
852 xpt_print(periph
->path
, "Synchronize cache "
853 "failed, status == 0x%x, scsi status == "
854 "0x%x\n", ccb
->csio
.ccb_h
.status
,
855 ccb
->csio
.scsi_status
);
859 if ((ccb
->ccb_h
.status
& CAM_DEV_QFRZN
) != 0)
860 cam_release_devq(ccb
->ccb_h
.path
,
866 xpt_release_ccb(ccb
);
870 if ((softc
->flags
& DA_FLAG_PACK_REMOVABLE
) != 0) {
871 if ((softc
->quirks
& DA_Q_NO_PREVENT
) == 0)
872 daprevent(periph
, PR_ALLOW
);
874 * If we've got removeable media, mark the blocksize as
875 * unavailable, since it could change when new media is
878 softc
->device_stats
.flags
|= DEVSTAT_BS_UNAVAILABLE
;
882 * Don't compound any ref counting software bugs with more.
884 if (softc
->flags
& DA_FLAG_OPEN
) {
885 softc
->flags
&= ~DA_FLAG_OPEN
;
886 cam_periph_release(periph
);
888 xpt_print(periph
->path
,
889 "daclose() called on an already closed device!\n");
891 cam_periph_unhold(periph
, 1);
896 * Actually translate the requested transfer into one the physical driver
897 * can understand. The transfer is described by a buf and will include
898 * only one physical transfer.
901 dastrategy(struct dev_strategy_args
*ap
)
903 cdev_t dev
= ap
->a_head
.a_dev
;
904 struct bio
*bio
= ap
->a_bio
;
905 struct buf
*bp
= bio
->bio_buf
;
906 struct cam_periph
*periph
;
907 struct da_softc
*softc
;
913 periph
= cam_extend_get(daperiphs
, unit
);
914 if (periph
== NULL
) {
918 softc
= (struct da_softc
*)periph
->softc
;
920 cam_periph_lock(periph
);
924 * check it's not too big a transfer for our adapter
926 scsi_minphys(bp
, &sd_switch
);
930 * Mask interrupts so that the pack cannot be invalidated until
931 * after we are in the queue. Otherwise, we might not properly
932 * clean up one of the buffers.
936 * If the device has been made invalid, error out
938 if ((softc
->flags
& DA_FLAG_PACK_INVALID
)) {
939 cam_periph_unlock(periph
);
945 * Place it in the queue of disk activities for this disk
947 bioqdisksort(&softc
->bio_queue
, bio
);
950 * Schedule ourselves for performing the work.
952 xpt_schedule(periph
, /* XXX priority */1);
953 cam_periph_unlock(periph
);
957 bp
->b_flags
|= B_ERROR
;
960 * Correctly set the buf to indicate a completed xfer
962 bp
->b_resid
= bp
->b_bcount
;
968 dadump(struct dev_dump_args
*ap
)
970 cdev_t dev
= ap
->a_head
.a_dev
;
971 struct cam_periph
*periph
;
972 struct da_softc
*softc
;
976 struct ccb_scsiio csio
;
977 int dumppages
= MAXDUMPPGS
;
980 /* toss any characters present prior to dump */
981 while (cncheckc() != -1)
985 periph
= cam_extend_get(daperiphs
, unit
);
986 if (periph
== NULL
) {
989 softc
= (struct da_softc
*)periph
->softc
;
991 cam_periph_lock(periph
);
992 if ((softc
->flags
& DA_FLAG_PACK_INVALID
) != 0) {
993 cam_periph_unlock(periph
);
997 addr
= 0; /* starting address */
998 blkcnt
= howmany(PAGE_SIZE
, ap
->a_secsize
);
1000 while (ap
->a_count
> 0) {
1003 if ((ap
->a_count
/ blkcnt
) < dumppages
)
1004 dumppages
= ap
->a_count
/ blkcnt
;
1006 for (i
= 0; i
< dumppages
; ++i
) {
1007 vm_paddr_t a
= addr
+ (i
* PAGE_SIZE
);
1008 if (is_physical_memory(a
))
1009 va
= pmap_kenter_temporary(trunc_page(a
), i
);
1011 va
= pmap_kenter_temporary(trunc_page(0), i
);
1014 periph
->flags
|= CAM_PERIPH_POLLED
;
1015 xpt_setup_ccb(&csio
.ccb_h
, periph
->path
, /*priority*/1);
1016 csio
.ccb_h
.ccb_state
= DA_CCB_DUMP
;
1017 scsi_read_write(&csio
,
1023 /*minimum_cmd_size*/ softc
->minimum_cmd_size
,
1026 /*data_ptr*/(u_int8_t
*) va
,
1027 /*dxfer_len*/blkcnt
* ap
->a_secsize
* dumppages
,
1028 /*sense_len*/SSD_FULL_SIZE
,
1029 DA_DEFAULT_TIMEOUT
* 1000);
1030 xpt_polled_action((union ccb
*)&csio
);
1032 if ((csio
.ccb_h
.status
& CAM_STATUS_MASK
) != CAM_REQ_CMP
) {
1033 kprintf("Aborting dump due to I/O error.\n");
1034 if ((csio
.ccb_h
.status
& CAM_STATUS_MASK
) ==
1035 CAM_SCSI_STATUS_ERROR
)
1036 scsi_sense_print(&csio
);
1038 kprintf("status == 0x%x, scsi status == 0x%x\n",
1039 csio
.ccb_h
.status
, csio
.scsi_status
);
1040 periph
->flags
|= CAM_PERIPH_POLLED
;
1044 if (dumpstatus(addr
, (off_t
)ap
->a_count
* softc
->params
.secsize
) < 0)
1047 /* update block count */
1048 ap
->a_count
-= blkcnt
* dumppages
;
1049 ap
->a_blkno
+= blkcnt
* dumppages
;
1050 addr
+= PAGE_SIZE
* dumppages
;
1054 * Sync the disk cache contents to the physical media.
1056 if ((softc
->quirks
& DA_Q_NO_SYNC_CACHE
) == 0) {
1058 xpt_setup_ccb(&csio
.ccb_h
, periph
->path
, /*priority*/1);
1059 csio
.ccb_h
.ccb_state
= DA_CCB_DUMP
;
1060 scsi_synchronize_cache(&csio
,
1064 /*begin_lba*/0,/* Cover the whole disk */
1068 xpt_polled_action((union ccb
*)&csio
);
1070 if ((csio
.ccb_h
.status
& CAM_STATUS_MASK
) != CAM_REQ_CMP
) {
1071 if ((csio
.ccb_h
.status
& CAM_STATUS_MASK
) ==
1072 CAM_SCSI_STATUS_ERROR
) {
1074 int sense_key
, error_code
;
1076 scsi_extract_sense(&csio
.sense_data
,
1080 if (sense_key
!= SSD_KEY_ILLEGAL_REQUEST
)
1081 scsi_sense_print(&csio
);
1083 xpt_print(periph
->path
, "Synchronize cache "
1084 "failed, status == 0x%x, scsi status == "
1085 "0x%x\n", csio
.ccb_h
.status
,
1090 periph
->flags
&= ~CAM_PERIPH_POLLED
;
1091 cam_periph_unlock(periph
);
1101 * Create our extend array for storing the devices we attach to.
1103 daperiphs
= cam_extend_new();
1104 if (daperiphs
== NULL
) {
1105 kprintf("da: Failed to alloc extend array!\n");
1109 callout_init(&dasendorderedtag_ch
);
1112 * Install a global async callback. This callback will
1113 * receive async callbacks like "new device found".
1115 status
= xpt_register_async(AC_FOUND_DEVICE
, daasync
, NULL
, NULL
);
1117 if (status
!= CAM_REQ_CMP
) {
1118 kprintf("da: Failed to attach master async callback "
1119 "due to status 0x%x!\n", status
);
1120 } else if (da_send_ordered
) {
1122 /* Register our shutdown event handler */
1123 if ((EVENTHANDLER_REGISTER(shutdown_post_sync
, dashutdown
,
1124 NULL
, SHUTDOWN_PRI_DEFAULT
)) == NULL
)
1125 kprintf("dainit: shutdown event registration failed!\n");
1130 daoninvalidate(struct cam_periph
*periph
)
1132 struct da_softc
*softc
;
1136 softc
= (struct da_softc
*)periph
->softc
;
1139 * De-register any async callbacks.
1141 xpt_register_async(0, daasync
, periph
, periph
->path
);
1143 softc
->flags
|= DA_FLAG_PACK_INVALID
;
1146 * Return all queued I/O with ENXIO.
1147 * XXX Handle any transactions queued to the card
1148 * with XPT_ABORT_CCB.
1150 while ((q_bio
= bioq_first(&softc
->bio_queue
)) != NULL
){
1151 bioq_remove(&softc
->bio_queue
, q_bio
);
1152 q_bp
= q_bio
->bio_buf
;
1153 q_bp
->b_resid
= q_bp
->b_bcount
;
1154 q_bp
->b_error
= ENXIO
;
1155 q_bp
->b_flags
|= B_ERROR
;
1158 xpt_print(periph
->path
, "lost device\n");
1162 dacleanup(struct cam_periph
*periph
)
1164 struct da_softc
*softc
;
1166 softc
= (struct da_softc
*)periph
->softc
;
1168 devstat_remove_entry(&softc
->device_stats
);
1169 cam_extend_release(daperiphs
, periph
->unit_number
);
1170 xpt_print(periph
->path
, "removing device entry\n");
1172 * If we can't free the sysctl tree, oh well...
1174 if ((softc
->flags
& DA_FLAG_SCTX_INIT
) != 0
1175 && sysctl_ctx_free(&softc
->sysctl_ctx
) != 0) {
1176 xpt_print(periph
->path
, "can't remove sysctl context\n");
1178 periph
->softc
= NULL
;
1179 if (softc
->disk
.d_rawdev
) {
1180 cam_periph_unlock(periph
);
1181 disk_destroy(&softc
->disk
);
1182 cam_periph_lock(periph
);
1185 callout_stop(&softc
->sendordered_c
);
1186 kfree(softc
, M_DEVBUF
);
1190 daasync(void *callback_arg
, u_int32_t code
,
1191 struct cam_path
*path
, void *arg
)
1193 struct cam_periph
*periph
;
1195 periph
= (struct cam_periph
*)callback_arg
;
1197 case AC_FOUND_DEVICE
:
1199 struct ccb_getdev
*cgd
;
1200 struct cam_sim
*sim
;
1203 cgd
= (struct ccb_getdev
*)arg
;
1207 if (SID_TYPE(&cgd
->inq_data
) != T_DIRECT
1208 && SID_TYPE(&cgd
->inq_data
) != T_RBC
1209 && SID_TYPE(&cgd
->inq_data
) != T_OPTICAL
)
1213 * Allocate a peripheral instance for
1214 * this device and start the probe
1217 sim
= xpt_path_sim(cgd
->ccb_h
.path
);
1218 status
= cam_periph_alloc(daregister
, daoninvalidate
,
1220 "da", CAM_PERIPH_BIO
,
1221 cgd
->ccb_h
.path
, daasync
,
1222 AC_FOUND_DEVICE
, cgd
);
1224 if (status
!= CAM_REQ_CMP
1225 && status
!= CAM_REQ_INPROG
)
1226 kprintf("daasync: Unable to attach to new device "
1227 "due to status 0x%x\n", status
);
1233 struct da_softc
*softc
;
1234 struct ccb_hdr
*ccbh
;
1236 softc
= (struct da_softc
*)periph
->softc
;
1238 * Don't fail on the expected unit attention
1241 softc
->flags
|= DA_FLAG_RETRY_UA
;
1242 LIST_FOREACH(ccbh
, &softc
->pending_ccbs
, periph_links
.le
)
1243 ccbh
->ccb_state
|= DA_CCB_RETRY_UA
;
1247 cam_periph_async(periph
, code
, path
, arg
);
1253 dasysctlinit(void *context
, int pending
)
1255 struct cam_periph
*periph
;
1256 struct da_softc
*softc
;
1257 char tmpstr
[80], tmpstr2
[80];
1259 periph
= (struct cam_periph
*)context
;
1260 if (cam_periph_acquire(periph
) != CAM_REQ_CMP
)
1263 softc
= (struct da_softc
*)periph
->softc
;
1264 ksnprintf(tmpstr
, sizeof(tmpstr
), "CAM DA unit %d", periph
->unit_number
);
1265 ksnprintf(tmpstr2
, sizeof(tmpstr2
), "%d", periph
->unit_number
);
1267 sysctl_ctx_init(&softc
->sysctl_ctx
);
1268 softc
->flags
|= DA_FLAG_SCTX_INIT
;
1269 softc
->sysctl_tree
= SYSCTL_ADD_NODE(&softc
->sysctl_ctx
,
1270 SYSCTL_STATIC_CHILDREN(_kern_cam_da
), OID_AUTO
, tmpstr2
,
1271 CTLFLAG_RD
, 0, tmpstr
);
1272 if (softc
->sysctl_tree
== NULL
) {
1273 kprintf("dasysctlinit: unable to allocate sysctl tree\n");
1274 cam_periph_release(periph
);
1279 * Now register the sysctl handler, so the user can the value on
1282 SYSCTL_ADD_PROC(&softc
->sysctl_ctx
,SYSCTL_CHILDREN(softc
->sysctl_tree
),
1283 OID_AUTO
, "minimum_cmd_size", CTLTYPE_INT
| CTLFLAG_RW
,
1284 &softc
->minimum_cmd_size
, 0, dacmdsizesysctl
, "I",
1285 "Minimum CDB size");
1287 cam_periph_release(periph
);
1291 dacmdsizesysctl(SYSCTL_HANDLER_ARGS
)
1295 value
= *(int *)arg1
;
1297 error
= sysctl_handle_int(oidp
, &value
, 0, req
);
1300 || (req
->newptr
== NULL
))
1304 * Acceptable values here are 6, 10 or 12, or 16.
1308 else if ((value
> 6)
1311 else if ((value
> 10)
1314 else if (value
> 12)
1317 *(int *)arg1
= value
;
1323 daregister(struct cam_periph
*periph
, void *arg
)
1325 struct da_softc
*softc
;
1326 struct ccb_pathinq cpi
;
1327 struct ccb_getdev
*cgd
;
1331 cgd
= (struct ccb_getdev
*)arg
;
1332 if (periph
== NULL
) {
1333 kprintf("daregister: periph was NULL!!\n");
1334 return(CAM_REQ_CMP_ERR
);
1338 kprintf("daregister: no getdev CCB, can't register device\n");
1339 return(CAM_REQ_CMP_ERR
);
1342 softc
= kmalloc(sizeof(*softc
), M_DEVBUF
, M_INTWAIT
| M_ZERO
);
1343 LIST_INIT(&softc
->pending_ccbs
);
1344 softc
->state
= DA_STATE_PROBE
;
1345 bioq_init(&softc
->bio_queue
);
1346 if (SID_IS_REMOVABLE(&cgd
->inq_data
))
1347 softc
->flags
|= DA_FLAG_PACK_REMOVABLE
;
1348 if ((cgd
->inq_data
.flags
& SID_CmdQue
) != 0)
1349 softc
->flags
|= DA_FLAG_TAGGED_QUEUING
;
1351 periph
->softc
= softc
;
1353 cam_extend_set(daperiphs
, periph
->unit_number
, periph
);
1356 * See if this device has any quirks.
1358 match
= cam_quirkmatch((caddr_t
)&cgd
->inq_data
,
1359 (caddr_t
)da_quirk_table
,
1360 sizeof(da_quirk_table
)/sizeof(*da_quirk_table
),
1361 sizeof(*da_quirk_table
), scsi_inquiry_match
);
1364 softc
->quirks
= ((struct da_quirk_entry
*)match
)->quirks
;
1366 softc
->quirks
= DA_Q_NONE
;
1368 TASK_INIT(&softc
->sysctl_task
, 0, dasysctlinit
, periph
);
1370 /* Check if the SIM does not want 6 byte commands */
1371 xpt_setup_ccb(&cpi
.ccb_h
, periph
->path
, /*priority*/1);
1372 cpi
.ccb_h
.func_code
= XPT_PATH_INQ
;
1373 xpt_action((union ccb
*)&cpi
);
1374 if (cpi
.ccb_h
.status
== CAM_REQ_CMP
&& (cpi
.hba_misc
& PIM_NO_6_BYTE
))
1375 softc
->quirks
|= DA_Q_NO_6_BYTE
;
1378 * RBC devices don't have to support READ(6), only READ(10).
1380 if (softc
->quirks
& DA_Q_NO_6_BYTE
|| SID_TYPE(&cgd
->inq_data
) == T_RBC
)
1381 softc
->minimum_cmd_size
= 10;
1383 softc
->minimum_cmd_size
= 6;
1386 * Load the user's default, if any.
1388 ksnprintf(tmpstr
, sizeof(tmpstr
), "kern.cam.da.%d.minimum_cmd_size",
1389 periph
->unit_number
);
1390 TUNABLE_INT_FETCH(tmpstr
, &softc
->minimum_cmd_size
);
1393 * 6, 10, 12, and 16 are the currently permissible values.
1395 if (softc
->minimum_cmd_size
< 6)
1396 softc
->minimum_cmd_size
= 6;
1397 else if ((softc
->minimum_cmd_size
> 6)
1398 && (softc
->minimum_cmd_size
<= 10))
1399 softc
->minimum_cmd_size
= 10;
1400 else if ((softc
->minimum_cmd_size
> 10)
1401 && (softc
->minimum_cmd_size
<= 12))
1402 softc
->minimum_cmd_size
= 12;
1403 else if (softc
->minimum_cmd_size
> 12)
1404 softc
->minimum_cmd_size
= 16;
1407 * The DA driver supports a blocksize, but
1408 * we don't know the blocksize until we do
1409 * a read capacity. So, set a flag to
1410 * indicate that the blocksize is
1411 * unavailable right now. We'll clear the
1412 * flag as soon as we've done a read capacity.
1414 devstat_add_entry(&softc
->device_stats
, "da",
1415 periph
->unit_number
, 0,
1416 DEVSTAT_BS_UNAVAILABLE
,
1417 SID_TYPE(&cgd
->inq_data
) | DEVSTAT_TYPE_IF_SCSI
,
1418 DEVSTAT_PRIORITY_DISK
);
1421 * Register this media as a disk
1424 CAM_SIM_UNLOCK(periph
->sim
);
1425 disk_create(periph
->unit_number
, &softc
->disk
, &da_ops
);
1426 softc
->disk
.d_rawdev
->si_iosize_max
= MAXPHYS
;
1427 CAM_SIM_LOCK(periph
->sim
);
1430 * Add async callbacks for bus reset and
1431 * bus device reset calls. I don't bother
1432 * checking if this fails as, in most cases,
1433 * the system will function just fine without
1434 * them and the only alternative would be to
1435 * not attach the device on failure.
1437 xpt_register_async(AC_SENT_BDR
| AC_BUS_RESET
| AC_LOST_DEVICE
,
1438 daasync
, periph
, periph
->path
);
1441 * Take an exclusive refcount on the periph while dastart is called
1442 * to finish the probe. The reference will be dropped in dadone at
1445 cam_periph_hold(periph
, 0);
1446 xpt_schedule(periph
, /*priority*/5);
1449 * Schedule a periodic event to occasionally send an
1450 * ordered tag to a device.
1452 callout_init(&softc
->sendordered_c
);
1453 callout_reset(&softc
->sendordered_c
,
1454 (DA_DEFAULT_TIMEOUT
* hz
) / DA_ORDEREDTAG_INTERVAL
,
1455 dasendorderedtag
, softc
);
1457 return(CAM_REQ_CMP
);
1461 dastart(struct cam_periph
*periph
, union ccb
*start_ccb
)
1463 struct da_softc
*softc
;
1465 softc
= (struct da_softc
*)periph
->softc
;
1467 switch (softc
->state
) {
1468 case DA_STATE_NORMAL
:
1470 /* Pull a buffer from the queue and get going on it */
1475 * See if there is a buf with work for us to do..
1477 bio
= bioq_first(&softc
->bio_queue
);
1478 if (periph
->immediate_priority
<= periph
->pinfo
.priority
) {
1479 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE
,
1480 ("queuing for immediate ccb\n"));
1481 start_ccb
->ccb_h
.ccb_state
= DA_CCB_WAITING
;
1482 SLIST_INSERT_HEAD(&periph
->ccb_list
, &start_ccb
->ccb_h
,
1484 periph
->immediate_priority
= CAM_PRIORITY_NONE
;
1485 wakeup(&periph
->ccb_list
);
1486 } else if (bio
== NULL
) {
1487 xpt_release_ccb(start_ccb
);
1491 bioq_remove(&softc
->bio_queue
, bio
);
1494 devstat_start_transaction(&softc
->device_stats
);
1496 if ((bp
->b_flags
& B_ORDERED
) != 0
1497 || (softc
->flags
& DA_FLAG_NEED_OTAG
) != 0) {
1498 softc
->flags
&= ~DA_FLAG_NEED_OTAG
;
1499 softc
->ordered_tag_count
++;
1500 tag_code
= MSG_ORDERED_Q_TAG
;
1502 tag_code
= MSG_SIMPLE_Q_TAG
;
1505 KKASSERT(bio
->bio_offset
% softc
->params
.secsize
== 0);
1507 scsi_read_write(&start_ccb
->csio
,
1508 /*retries*/da_retry_count
,
1511 (bp
->b_cmd
== BUF_CMD_READ
),
1513 softc
->minimum_cmd_size
,
1514 bio
->bio_offset
/ softc
->params
.secsize
,
1515 bp
->b_bcount
/ softc
->params
.secsize
,
1518 /*sense_len*/SSD_FULL_SIZE
,
1519 da_default_timeout
* 1000);
1520 start_ccb
->ccb_h
.ccb_state
= DA_CCB_BUFFER_IO
;
1523 * Block out any asyncronous callbacks
1524 * while we touch the pending ccb list.
1526 LIST_INSERT_HEAD(&softc
->pending_ccbs
,
1527 &start_ccb
->ccb_h
, periph_links
.le
);
1529 softc
->outstanding_cmds
++;
1530 /* We expect a unit attention from this device */
1531 if ((softc
->flags
& DA_FLAG_RETRY_UA
) != 0) {
1532 start_ccb
->ccb_h
.ccb_state
|= DA_CCB_RETRY_UA
;
1533 softc
->flags
&= ~DA_FLAG_RETRY_UA
;
1536 start_ccb
->ccb_h
.ccb_bio
= bio
;
1537 bio
= bioq_first(&softc
->bio_queue
);
1539 xpt_action(start_ccb
);
1543 /* Have more work to do, so ensure we stay scheduled */
1544 xpt_schedule(periph
, /* XXX priority */1);
1548 case DA_STATE_PROBE
:
1550 struct ccb_scsiio
*csio
;
1551 struct scsi_read_capacity_data
*rcap
;
1553 rcap
= kmalloc(sizeof(*rcap
), M_SCSIDA
, M_INTWAIT
| M_ZERO
);
1554 csio
= &start_ccb
->csio
;
1555 scsi_read_capacity(csio
,
1562 start_ccb
->ccb_h
.ccb_bio
= NULL
;
1563 start_ccb
->ccb_h
.ccb_state
= DA_CCB_PROBE
;
1564 xpt_action(start_ccb
);
1567 case DA_STATE_PROBE2
:
1569 struct ccb_scsiio
*csio
;
1570 struct scsi_read_capacity_data_long
*rcaplong
;
1572 rcaplong
= (struct scsi_read_capacity_data_long
*)
1573 kmalloc(sizeof(*rcaplong
), M_SCSIDA
, M_INTWAIT
| M_ZERO
);
1574 if (rcaplong
== NULL
) {
1575 kprintf("dastart: Couldn't allocate read_capacity\n");
1576 /* da_free_periph??? */
1579 csio
= &start_ccb
->csio
;
1580 scsi_read_capacity_16(csio
,
1583 /*tag_action*/ MSG_SIMPLE_Q_TAG
,
1588 /*sense_len*/ SSD_FULL_SIZE
,
1590 start_ccb
->ccb_h
.ccb_bio
= NULL
;
1591 start_ccb
->ccb_h
.ccb_state
= DA_CCB_PROBE2
;
1592 xpt_action(start_ccb
);
1599 cmd6workaround(union ccb
*ccb
)
1601 struct scsi_rw_6 cmd6
;
1602 struct scsi_rw_10
*cmd10
;
1603 struct da_softc
*softc
;
1607 cdb
= ccb
->csio
.cdb_io
.cdb_bytes
;
1609 /* Translation only possible if CDB is an array and cmd is R/W6 */
1610 if ((ccb
->ccb_h
.flags
& CAM_CDB_POINTER
) != 0 ||
1611 (*cdb
!= READ_6
&& *cdb
!= WRITE_6
))
1614 xpt_print(ccb
->ccb_h
.path
, "READ(6)/WRITE(6) not supported, "
1615 "increasing minimum_cmd_size to 10.\n");
1616 softc
= (struct da_softc
*)xpt_path_periph(ccb
->ccb_h
.path
)->softc
;
1617 softc
->minimum_cmd_size
= 10;
1619 bcopy(cdb
, &cmd6
, sizeof(struct scsi_rw_6
));
1620 cmd10
= (struct scsi_rw_10
*)cdb
;
1621 cmd10
->opcode
= (cmd6
.opcode
== READ_6
) ? READ_10
: WRITE_10
;
1623 scsi_ulto4b(scsi_3btoul(cmd6
.addr
), cmd10
->addr
);
1624 cmd10
->reserved
= 0;
1625 scsi_ulto2b(cmd6
.length
, cmd10
->length
);
1626 cmd10
->control
= cmd6
.control
;
1627 ccb
->csio
.cdb_len
= sizeof(*cmd10
);
1629 /* Requeue request, unfreezing queue if necessary */
1630 frozen
= (ccb
->ccb_h
.status
& CAM_DEV_QFRZN
) != 0;
1631 ccb
->ccb_h
.status
= CAM_REQUEUE_REQ
;
1634 cam_release_devq(ccb
->ccb_h
.path
,
1638 /*getcount_only*/0);
1644 dadone(struct cam_periph
*periph
, union ccb
*done_ccb
)
1646 struct da_softc
*softc
;
1647 struct ccb_scsiio
*csio
;
1649 softc
= (struct da_softc
*)periph
->softc
;
1650 csio
= &done_ccb
->csio
;
1651 switch (csio
->ccb_h
.ccb_state
& DA_CCB_TYPE_MASK
) {
1652 case DA_CCB_BUFFER_IO
:
1657 bio
= (struct bio
*)done_ccb
->ccb_h
.ccb_bio
;
1659 if ((done_ccb
->ccb_h
.status
& CAM_STATUS_MASK
) != CAM_REQ_CMP
) {
1663 if ((csio
->ccb_h
.ccb_state
& DA_CCB_RETRY_UA
) != 0)
1668 error
= daerror(done_ccb
, CAM_RETRY_SELTO
, sf
);
1669 if (error
== ERESTART
) {
1671 * A retry was scheuled, so
1680 if (error
== ENXIO
) {
1682 * Catastrophic error. Mark our pack as
1686 * XXX See if this is really a media
1689 xpt_print(periph
->path
,
1690 "Invalidating pack\n");
1691 softc
->flags
|= DA_FLAG_PACK_INVALID
;
1695 * return all queued I/O with EIO, so that
1696 * the client can retry these I/Os in the
1697 * proper order should it attempt to recover.
1699 while ((q_bio
= bioq_first(&softc
->bio_queue
))
1701 bioq_remove(&softc
->bio_queue
, q_bio
);
1702 q_bp
= q_bio
->bio_buf
;
1703 q_bp
->b_resid
= q_bp
->b_bcount
;
1704 q_bp
->b_error
= EIO
;
1705 q_bp
->b_flags
|= B_ERROR
;
1708 bp
->b_error
= error
;
1709 bp
->b_resid
= bp
->b_bcount
;
1710 bp
->b_flags
|= B_ERROR
;
1712 bp
->b_resid
= csio
->resid
;
1714 if (bp
->b_resid
!= 0)
1715 bp
->b_flags
|= B_ERROR
;
1717 if ((done_ccb
->ccb_h
.status
& CAM_DEV_QFRZN
) != 0)
1718 cam_release_devq(done_ccb
->ccb_h
.path
,
1722 /*getcount_only*/0);
1724 if ((done_ccb
->ccb_h
.status
& CAM_DEV_QFRZN
) != 0)
1725 panic("REQ_CMP with QFRZN");
1726 bp
->b_resid
= csio
->resid
;
1727 if (csio
->resid
> 0)
1728 bp
->b_flags
|= B_ERROR
;
1732 * Block out any asyncronous callbacks
1733 * while we touch the pending ccb list.
1735 LIST_REMOVE(&done_ccb
->ccb_h
, periph_links
.le
);
1736 softc
->outstanding_cmds
--;
1737 if (softc
->outstanding_cmds
== 0)
1738 softc
->flags
|= DA_FLAG_WENT_IDLE
;
1740 devstat_end_transaction_buf(&softc
->device_stats
, bp
);
1747 struct scsi_read_capacity_data
*rdcap
;
1748 struct scsi_read_capacity_data_long
*rcaplong
;
1749 char announce_buf
[80];
1753 if (softc
->state
== DA_STATE_PROBE
)
1754 rdcap
=(struct scsi_read_capacity_data
*)csio
->data_ptr
;
1756 rcaplong
= (struct scsi_read_capacity_data_long
*)
1759 if ((csio
->ccb_h
.status
& CAM_STATUS_MASK
) == CAM_REQ_CMP
) {
1760 struct disk_params
*dp
;
1761 uint32_t block_size
;
1764 if (softc
->state
== DA_STATE_PROBE
) {
1765 block_size
= scsi_4btoul(rdcap
->length
);
1766 maxsector
= scsi_4btoul(rdcap
->addr
);
1769 * According to SBC-2, if the standard 10
1770 * byte READ CAPACITY command returns 2^32,
1771 * we should issue the 16 byte version of
1772 * the command, since the device in question
1773 * has more sectors than can be represented
1774 * with the short version of the command.
1776 if (maxsector
== 0xffffffff) {
1777 softc
->state
= DA_STATE_PROBE2
;
1778 kfree(rdcap
, M_SCSIDA
);
1779 xpt_release_ccb(done_ccb
);
1780 xpt_schedule(periph
, /*priority*/5);
1784 block_size
= scsi_4btoul(rcaplong
->length
);
1785 maxsector
= scsi_8btou64(rcaplong
->addr
);
1787 dasetgeom(periph
, block_size
, maxsector
);
1788 dp
= &softc
->params
;
1789 ksnprintf(announce_buf
, sizeof(announce_buf
),
1790 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)",
1791 (uintmax_t) (((uintmax_t)dp
->secsize
*
1792 dp
->sectors
) / (1024*1024)),
1793 (uintmax_t)dp
->sectors
,
1794 dp
->secsize
, dp
->heads
, dp
->secs_per_track
,
1799 announce_buf
[0] = '\0';
1802 * Retry any UNIT ATTENTION type errors. They
1803 * are expected at boot.
1805 error
= daerror(done_ccb
, CAM_RETRY_SELTO
,
1806 SF_RETRY_UA
|SF_NO_PRINT
);
1807 if (error
== ERESTART
) {
1809 * A retry was scheuled, so
1813 } else if (error
!= 0) {
1814 struct scsi_sense_data
*sense
;
1816 int sense_key
, error_code
;
1819 struct ccb_getdev cgd
;
1821 /* Don't wedge this device's queue */
1822 status
= done_ccb
->ccb_h
.status
;
1823 if ((status
& CAM_DEV_QFRZN
) != 0)
1824 cam_release_devq(done_ccb
->ccb_h
.path
,
1828 /*getcount_only*/0);
1831 xpt_setup_ccb(&cgd
.ccb_h
,
1832 done_ccb
->ccb_h
.path
,
1834 cgd
.ccb_h
.func_code
= XPT_GDEV_TYPE
;
1835 xpt_action((union ccb
*)&cgd
);
1837 if (((csio
->ccb_h
.flags
& CAM_SENSE_PHYS
) != 0)
1838 || ((csio
->ccb_h
.flags
& CAM_SENSE_PTR
) != 0)
1839 || ((status
& CAM_AUTOSNS_VALID
) == 0))
1845 sense
= &csio
->sense_data
;
1846 scsi_extract_sense(sense
, &error_code
,
1851 * Attach to anything that claims to be a
1852 * direct access or optical disk device,
1853 * as long as it doesn't return a "Logical
1854 * unit not supported" (0x25) error.
1856 if ((have_sense
) && (asc
!= 0x25)
1857 && (error_code
== SSD_CURRENT_ERROR
)) {
1858 const char *sense_key_desc
;
1859 const char *asc_desc
;
1861 scsi_sense_desc(sense_key
, asc
, ascq
,
1865 ksnprintf(announce_buf
,
1866 sizeof(announce_buf
),
1867 "Attempt to query device "
1868 "size failed: %s, %s",
1876 xpt_print(periph
->path
,
1877 "got CAM status %#x\n",
1878 done_ccb
->ccb_h
.status
);
1881 xpt_print(periph
->path
, "fatal error, "
1882 "failed to attach to device\n");
1885 * Free up resources.
1887 cam_periph_invalidate(periph
);
1891 kfree(csio
->data_ptr
, M_SCSIDA
);
1892 if (announce_buf
[0] != '\0') {
1893 xpt_announce_periph(periph
, announce_buf
);
1895 * Create our sysctl variables, now that we know
1896 * we have successfully attached.
1898 taskqueue_enqueue(taskqueue_thread
[mycpuid
],
1899 &softc
->sysctl_task
);
1901 softc
->state
= DA_STATE_NORMAL
;
1903 * Since our peripheral may be invalidated by an error
1904 * above or an external event, we must release our CCB
1905 * before releasing the probe lock on the peripheral.
1906 * The peripheral will only go away once the last lock
1907 * is removed, and we need it around for the CCB release
1910 xpt_release_ccb(done_ccb
);
1911 cam_periph_unhold(periph
, 0);
1914 case DA_CCB_WAITING
:
1916 /* Caller will release the CCB */
1917 wakeup(&done_ccb
->ccb_h
.cbfcnp
);
1921 /* No-op. We're polling */
1926 xpt_release_ccb(done_ccb
);
1930 daerror(union ccb
*ccb
, u_int32_t cam_flags
, u_int32_t sense_flags
)
1932 struct da_softc
*softc
;
1933 struct cam_periph
*periph
;
1936 periph
= xpt_path_periph(ccb
->ccb_h
.path
);
1937 softc
= (struct da_softc
*)periph
->softc
;
1940 * Automatically detect devices that do not support
1941 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1944 if ((ccb
->ccb_h
.status
& CAM_STATUS_MASK
) == CAM_REQ_INVALID
) {
1945 error
= cmd6workaround(ccb
);
1946 } else if (((ccb
->ccb_h
.status
& CAM_STATUS_MASK
) ==
1947 CAM_SCSI_STATUS_ERROR
)
1948 && (ccb
->ccb_h
.status
& CAM_AUTOSNS_VALID
)
1949 && (ccb
->csio
.scsi_status
== SCSI_STATUS_CHECK_COND
)
1950 && ((ccb
->ccb_h
.flags
& CAM_SENSE_PHYS
) == 0)
1951 && ((ccb
->ccb_h
.flags
& CAM_SENSE_PTR
) == 0)) {
1952 int sense_key
, error_code
, asc
, ascq
;
1954 scsi_extract_sense(&ccb
->csio
.sense_data
,
1955 &error_code
, &sense_key
, &asc
, &ascq
);
1956 if (sense_key
== SSD_KEY_ILLEGAL_REQUEST
)
1957 error
= cmd6workaround(ccb
);
1959 if (error
== ERESTART
)
1964 * Until we have a better way of doing pack validation,
1965 * don't treat UAs as errors.
1967 sense_flags
|= SF_RETRY_UA
;
1968 return(cam_periph_error(ccb
, cam_flags
, sense_flags
,
1969 &softc
->saved_ccb
));
1973 daprevent(struct cam_periph
*periph
, int action
)
1975 struct da_softc
*softc
;
1979 softc
= (struct da_softc
*)periph
->softc
;
1981 if (((action
== PR_ALLOW
)
1982 && (softc
->flags
& DA_FLAG_PACK_LOCKED
) == 0)
1983 || ((action
== PR_PREVENT
)
1984 && (softc
->flags
& DA_FLAG_PACK_LOCKED
) != 0)) {
1988 ccb
= cam_periph_getccb(periph
, /*priority*/1);
1990 scsi_prevent(&ccb
->csio
,
1998 error
= cam_periph_runccb(ccb
, /*error_routine*/NULL
, CAM_RETRY_SELTO
,
1999 SF_RETRY_UA
, &softc
->device_stats
);
2002 if (action
== PR_ALLOW
)
2003 softc
->flags
&= ~DA_FLAG_PACK_LOCKED
;
2005 softc
->flags
|= DA_FLAG_PACK_LOCKED
;
2008 xpt_release_ccb(ccb
);
2012 dagetcapacity(struct cam_periph
*periph
)
2014 struct da_softc
*softc
;
2016 struct scsi_read_capacity_data
*rcap
;
2017 struct scsi_read_capacity_data_long
*rcaplong
;
2022 softc
= (struct da_softc
*)periph
->softc
;
2027 /* Do a read capacity */
2028 rcap
= (struct scsi_read_capacity_data
*)kmalloc(sizeof(*rcaplong
),
2029 M_SCSIDA
, M_INTWAIT
);
2031 ccb
= cam_periph_getccb(periph
, /*priority*/1);
2032 scsi_read_capacity(&ccb
->csio
,
2039 ccb
->ccb_h
.ccb_bio
= NULL
;
2041 error
= cam_periph_runccb(ccb
, daerror
,
2042 /*cam_flags*/CAM_RETRY_SELTO
,
2043 /*sense_flags*/SF_RETRY_UA
,
2044 &softc
->device_stats
);
2046 if ((ccb
->ccb_h
.status
& CAM_DEV_QFRZN
) != 0)
2047 cam_release_devq(ccb
->ccb_h
.path
,
2051 /*getcount_only*/0);
2054 block_len
= scsi_4btoul(rcap
->length
);
2055 maxsector
= scsi_4btoul(rcap
->addr
);
2057 if (maxsector
!= 0xffffffff)
2062 rcaplong
= (struct scsi_read_capacity_data_long
*)rcap
;
2064 scsi_read_capacity_16(&ccb
->csio
,
2067 /*tag_action*/ MSG_SIMPLE_Q_TAG
,
2072 /*sense_len*/ SSD_FULL_SIZE
,
2074 ccb
->ccb_h
.ccb_bio
= NULL
;
2076 error
= cam_periph_runccb(ccb
, daerror
,
2077 /*cam_flags*/CAM_RETRY_SELTO
,
2078 /*sense_flags*/SF_RETRY_UA
,
2079 &softc
->device_stats
);
2081 if ((ccb
->ccb_h
.status
& CAM_DEV_QFRZN
) != 0)
2082 cam_release_devq(ccb
->ccb_h
.path
,
2086 /*getcount_only*/0);
2089 block_len
= scsi_4btoul(rcaplong
->length
);
2090 maxsector
= scsi_8btou64(rcaplong
->addr
);
2096 dasetgeom(periph
, block_len
, maxsector
);
2098 xpt_release_ccb(ccb
);
2100 kfree(rcap
, M_SCSIDA
);
2106 dasetgeom(struct cam_periph
*periph
, uint32_t block_len
, uint64_t maxsector
)
2108 struct ccb_calc_geometry ccg
;
2109 struct da_softc
*softc
;
2110 struct disk_params
*dp
;
2112 softc
= (struct da_softc
*)periph
->softc
;
2114 dp
= &softc
->params
;
2115 dp
->secsize
= block_len
;
2116 dp
->sectors
= maxsector
+ 1;
2118 * Have the controller provide us with a geometry
2119 * for this disk. The only time the geometry
2120 * matters is when we boot and the controller
2121 * is the only one knowledgeable enough to come
2122 * up with something that will make this a bootable
2125 xpt_setup_ccb(&ccg
.ccb_h
, periph
->path
, /*priority*/1);
2126 ccg
.ccb_h
.func_code
= XPT_CALC_GEOMETRY
;
2127 ccg
.block_size
= dp
->secsize
;
2128 ccg
.volume_size
= dp
->sectors
;
2130 ccg
.secs_per_track
= 0;
2132 xpt_action((union ccb
*)&ccg
);
2133 if ((ccg
.ccb_h
.status
& CAM_STATUS_MASK
) != CAM_REQ_CMP
) {
2135 * We don't know what went wrong here- but just pick
2136 * a geometry so we don't have nasty things like divide
2140 dp
->secs_per_track
= 255;
2141 dp
->cylinders
= dp
->sectors
/ (255 * 255);
2142 if (dp
->cylinders
== 0) {
2146 dp
->heads
= ccg
.heads
;
2147 dp
->secs_per_track
= ccg
.secs_per_track
;
2148 dp
->cylinders
= ccg
.cylinders
;
2153 dasendorderedtag(void *arg
)
2155 struct da_softc
*softc
= arg
;
2157 if (da_send_ordered
) {
2158 if ((softc
->ordered_tag_count
== 0)
2159 && ((softc
->flags
& DA_FLAG_WENT_IDLE
) == 0)) {
2160 softc
->flags
|= DA_FLAG_NEED_OTAG
;
2162 if (softc
->outstanding_cmds
> 0)
2163 softc
->flags
&= ~DA_FLAG_WENT_IDLE
;
2165 softc
->ordered_tag_count
= 0;
2167 /* Queue us up again */
2168 callout_reset(&softc
->sendordered_c
,
2169 (DA_DEFAULT_TIMEOUT
* hz
) / DA_ORDEREDTAG_INTERVAL
,
2170 dasendorderedtag
, softc
);
2174 * Step through all DA peripheral drivers, and if the device is still open,
2175 * sync the disk cache to physical media.
2178 dashutdown(void * arg
, int howto
)
2180 struct cam_periph
*periph
;
2181 struct da_softc
*softc
;
2183 TAILQ_FOREACH(periph
, &dadriver
.units
, unit_links
) {
2186 cam_periph_lock(periph
);
2187 softc
= (struct da_softc
*)periph
->softc
;
2190 * We only sync the cache if the drive is still open, and
2191 * if the drive is capable of it..
2193 if (((softc
->flags
& DA_FLAG_OPEN
) == 0)
2194 || (softc
->quirks
& DA_Q_NO_SYNC_CACHE
)) {
2195 cam_periph_unlock(periph
);
2199 xpt_setup_ccb(&ccb
.ccb_h
, periph
->path
, /*priority*/1);
2201 ccb
.ccb_h
.ccb_state
= DA_CCB_DUMP
;
2202 scsi_synchronize_cache(&ccb
.csio
,
2206 /*begin_lba*/0, /* whole disk */
2211 xpt_polled_action(&ccb
);
2213 if ((ccb
.ccb_h
.status
& CAM_STATUS_MASK
) != CAM_REQ_CMP
) {
2214 if (((ccb
.ccb_h
.status
& CAM_STATUS_MASK
) ==
2215 CAM_SCSI_STATUS_ERROR
)
2216 && (ccb
.csio
.scsi_status
== SCSI_STATUS_CHECK_COND
)){
2217 int error_code
, sense_key
, asc
, ascq
;
2219 scsi_extract_sense(&ccb
.csio
.sense_data
,
2220 &error_code
, &sense_key
,
2223 if (sense_key
!= SSD_KEY_ILLEGAL_REQUEST
)
2224 scsi_sense_print(&ccb
.csio
);
2226 xpt_print(periph
->path
, "Synchronize "
2227 "cache failed, status == 0x%x, scsi status "
2228 "== 0x%x\n", ccb
.ccb_h
.status
,
2229 ccb
.csio
.scsi_status
);
2233 if ((ccb
.ccb_h
.status
& CAM_DEV_QFRZN
) != 0)
2234 cam_release_devq(ccb
.ccb_h
.path
,
2238 /*getcount_only*/0);
2240 cam_periph_unlock(periph
);
2244 #else /* !_KERNEL */
2247 * XXX This is only left out of the kernel build to silence warnings. If,
2248 * for some reason this function is used in the kernel, the ifdefs should
2249 * be moved so it is included both in the kernel and userland.
2252 scsi_format_unit(struct ccb_scsiio
*csio
, u_int32_t retries
,
2253 void (*cbfcnp
)(struct cam_periph
*, union ccb
*),
2254 u_int8_t tag_action
, u_int8_t byte2
, u_int16_t ileave
,
2255 u_int8_t
*data_ptr
, u_int32_t dxfer_len
, u_int8_t sense_len
,
2258 struct scsi_format_unit
*scsi_cmd
;
2260 scsi_cmd
= (struct scsi_format_unit
*)&csio
->cdb_io
.cdb_bytes
;
2261 scsi_cmd
->opcode
= FORMAT_UNIT
;
2262 scsi_cmd
->byte2
= byte2
;
2263 scsi_ulto2b(ileave
, scsi_cmd
->interleave
);
2268 /*flags*/ (dxfer_len
> 0) ? CAM_DIR_OUT
: CAM_DIR_NONE
,
2277 #endif /* _KERNEL */