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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
38 #include <sys/sysctl.h>
39 #include <sys/taskqueue.h>
41 #include <sys/mutex.h>
43 #include <sys/devicestat.h>
44 #include <sys/eventhandler.h>
45 #include <sys/malloc.h>
47 #include <geom/geom_disk.h>
56 #include <cam/cam_ccb.h>
57 #include <cam/cam_periph.h>
58 #include <cam/cam_xpt_periph.h>
59 #include <cam/cam_sim.h>
61 #include <cam/scsi/scsi_message.h>
64 #include <cam/scsi/scsi_da.h>
75 DA_FLAG_PACK_INVALID = 0x001,
76 DA_FLAG_NEW_PACK = 0x002,
77 DA_FLAG_PACK_LOCKED = 0x004,
78 DA_FLAG_PACK_REMOVABLE = 0x008,
79 DA_FLAG_TAGGED_QUEUING = 0x010,
80 DA_FLAG_NEED_OTAG = 0x020,
81 DA_FLAG_WENT_IDLE = 0x040,
82 DA_FLAG_RETRY_UA = 0x080,
84 DA_FLAG_SCTX_INIT = 0x200
89 DA_Q_NO_SYNC_CACHE = 0x01,
90 DA_Q_NO_6_BYTE = 0x02,
91 DA_Q_NO_PREVENT = 0x04
97 DA_CCB_BUFFER_IO = 0x03,
98 DA_CCB_WAITING = 0x04,
100 DA_CCB_TYPE_MASK = 0x0F,
101 DA_CCB_RETRY_UA = 0x10
104 /* Offsets into our private area for storing information */
105 #define ccb_state ppriv_field0
106 #define ccb_bp ppriv_ptr1
111 u_int8_t secs_per_track;
112 u_int32_t secsize; /* Number of bytes/sector */
113 u_int64_t sectors; /* total number sectors */
117 struct bio_queue_head bio_queue;
118 SLIST_ENTRY(da_softc) links;
119 LIST_HEAD(, ccb_hdr) pending_ccbs;
123 int minimum_cmd_size;
124 int ordered_tag_count;
125 int outstanding_cmds;
126 struct disk_params params;
129 struct task sysctl_task;
130 struct sysctl_ctx_list sysctl_ctx;
131 struct sysctl_oid *sysctl_tree;
132 struct callout sendordered_c;
135 struct da_quirk_entry {
136 struct scsi_inquiry_pattern inq_pat;
140 static const char quantum[] = "QUANTUM";
141 static const char microp[] = "MICROP";
143 static struct da_quirk_entry da_quirk_table[] =
145 /* SPI, FC devices */
148 * Fujitsu M2513A MO drives.
149 * Tested devices: M2513A2 firmware versions 1200 & 1300.
150 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
151 * Reported by: W.Scholten <whs@xs4all.nl>
153 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
154 /*quirks*/ DA_Q_NO_SYNC_CACHE
158 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
159 /*quirks*/ DA_Q_NO_SYNC_CACHE
163 * This particular Fujitsu drive doesn't like the
164 * synchronize cache command.
165 * Reported by: Tom Jackson <toj@gorilla.net>
167 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
168 /*quirks*/ DA_Q_NO_SYNC_CACHE
172 * This drive doesn't like the synchronize cache command
173 * either. Reported by: Matthew Jacob <mjacob@feral.com>
174 * in NetBSD PR kern/6027, August 24, 1998.
176 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
177 /*quirks*/ DA_Q_NO_SYNC_CACHE
181 * This drive doesn't like the synchronize cache command
182 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
185 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
186 /*quirks*/ DA_Q_NO_SYNC_CACHE
190 * Doesn't like the synchronize cache command.
191 * Reported by: Blaz Zupan <blaz@gold.amis.net>
193 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
194 /*quirks*/ DA_Q_NO_SYNC_CACHE
198 * Doesn't like the synchronize cache command.
199 * Reported by: Blaz Zupan <blaz@gold.amis.net>
201 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
202 /*quirks*/ DA_Q_NO_SYNC_CACHE
206 * Doesn't like the synchronize cache command.
208 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
209 /*quirks*/ DA_Q_NO_SYNC_CACHE
213 * Doesn't like the synchronize cache command.
214 * Reported by: walter@pelissero.de
216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
217 /*quirks*/ DA_Q_NO_SYNC_CACHE
221 * Doesn't work correctly with 6 byte reads/writes.
222 * Returns illegal request, and points to byte 9 of the
224 * Reported by: Adam McDougall <bsdx@spawnet.com>
226 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
227 /*quirks*/ DA_Q_NO_6_BYTE
231 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
232 /*quirks*/ DA_Q_NO_6_BYTE
236 * Doesn't like the synchronize cache command.
237 * Reported by: walter@pelissero.de
239 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
240 /*quirks*/ DA_Q_NO_SYNC_CACHE
244 * The CISS RAID controllers do not support SYNC_CACHE
246 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
247 /*quirks*/ DA_Q_NO_SYNC_CACHE
249 /* USB mass storage devices supported by umass(4) */
252 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
255 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
256 /*quirks*/ DA_Q_NO_SYNC_CACHE
260 * Power Quotient Int. (PQI) USB flash key
263 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
264 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
268 * Creative Nomad MUVO mp3 player (USB)
271 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
272 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
276 * Jungsoft NEXDISK USB flash key
279 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
280 /*quirks*/ DA_Q_NO_SYNC_CACHE
284 * FreeDik USB Mini Data Drive
287 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
288 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
292 * Sigmatel USB Flash MP3 Player
295 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
296 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
300 * Neuros USB Digital Audio Computer
303 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
304 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
308 * SEAGRAND NP-900 MP3 Player
311 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
312 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
316 * iRiver iFP MP3 player (with UMS Firmware)
317 * PR: kern/54881, i386/63941, kern/66124
319 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
320 /*quirks*/ DA_Q_NO_SYNC_CACHE
324 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
327 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
328 /*quirks*/ DA_Q_NO_SYNC_CACHE
332 * ZICPlay USB MP3 Player with FM
335 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
336 /*quirks*/ DA_Q_NO_SYNC_CACHE
340 * TEAC USB floppy mechanisms
342 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
343 /*quirks*/ DA_Q_NO_SYNC_CACHE
347 * Kingston DataTraveler II+ USB Pen-Drive.
348 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
350 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
351 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
355 * Motorola E398 Mobile Phone (TransFlash memory card).
356 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
359 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
360 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
364 * Qware BeatZkey! Pro
367 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
368 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
372 * Time DPA20B 1GB MP3 Player
375 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
376 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
380 * Samsung USB key 128Mb
383 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
384 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
388 * Kingston DataTraveler 2.0 USB Flash memory.
391 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
392 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
396 * Creative MUVO Slim mp3 player (USB)
399 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
400 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
404 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
407 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
408 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
412 * SanDisk Micro Cruzer 128MB
415 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
416 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
420 * TOSHIBA TransMemory USB sticks
423 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
424 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
429 * PR: usb/75578, usb/72344, usb/65436
431 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
432 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
436 * Genesys 6-in-1 Card Reader
439 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
440 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
444 * Rekam Digital CAMERA
447 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
448 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
452 * iRiver H10 MP3 player
455 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
456 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
460 * iRiver U10 MP3 player
463 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
464 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
471 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
472 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
476 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
479 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
480 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
487 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
488 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
492 * Philips USB Key Audio KEY013
495 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
496 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
503 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
504 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
511 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
512 /*quirks*/ DA_Q_NO_SYNC_CACHE
516 * I/O Magic USB flash - Giga Bank
519 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
520 /*quirks*/ DA_Q_NO_SYNC_CACHE
524 * JoyFly 128mb USB Flash Drive
527 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
528 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
535 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
536 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
540 * Samsung YP-U3 mp3-player
543 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
544 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
547 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
548 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
552 static disk_strategy_t dastrategy;
553 static dumper_t dadump;
554 static periph_init_t dainit;
555 static void daasync(void *callback_arg, u_int32_t code,
556 struct cam_path *path, void *arg);
557 static void dasysctlinit(void *context, int pending);
558 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
559 static periph_ctor_t daregister;
560 static periph_dtor_t dacleanup;
561 static periph_start_t dastart;
562 static periph_oninv_t daoninvalidate;
563 static void dadone(struct cam_periph *periph,
564 union ccb *done_ccb);
565 static int daerror(union ccb *ccb, u_int32_t cam_flags,
566 u_int32_t sense_flags);
567 static void daprevent(struct cam_periph *periph, int action);
568 static int dagetcapacity(struct cam_periph *periph);
569 static void dasetgeom(struct cam_periph *periph, uint32_t block_len,
571 static timeout_t dasendorderedtag;
572 static void dashutdown(void *arg, int howto);
574 #ifndef DA_DEFAULT_TIMEOUT
575 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
578 #ifndef DA_DEFAULT_RETRY
579 #define DA_DEFAULT_RETRY 4
582 #ifndef DA_DEFAULT_SEND_ORDERED
583 #define DA_DEFAULT_SEND_ORDERED 1
587 static int da_retry_count = DA_DEFAULT_RETRY;
588 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
589 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
591 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
592 "CAM Direct Access Disk driver");
593 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
594 &da_retry_count, 0, "Normal I/O retry count");
595 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
596 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
597 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
598 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
599 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
600 &da_send_ordered, 0, "Send Ordered Tags");
601 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
604 * DA_ORDEREDTAG_INTERVAL determines how often, relative
605 * to the default timeout, we check to see whether an ordered
606 * tagged transaction is appropriate to prevent simple tag
607 * starvation. Since we'd like to ensure that there is at least
608 * 1/2 of the timeout length left for a starved transaction to
609 * complete after we've sent an ordered tag, we must poll at least
610 * four times in every timeout period. This takes care of the worst
611 * case where a starved transaction starts during an interval that
612 * meets the requirement "don't send an ordered tag" test so it takes
613 * us two intervals to determine that a tag must be sent.
615 #ifndef DA_ORDEREDTAG_INTERVAL
616 #define DA_ORDEREDTAG_INTERVAL 4
619 static struct periph_driver dadriver =
622 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
625 PERIPHDRIVER_DECLARE(da, dadriver);
627 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
630 daopen(struct disk *dp)
632 struct cam_periph *periph;
633 struct da_softc *softc;
637 periph = (struct cam_periph *)dp->d_drv1;
638 if (periph == NULL) {
642 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
646 cam_periph_lock(periph);
647 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
648 cam_periph_unlock(periph);
649 cam_periph_release(periph);
653 unit = periph->unit_number;
654 softc = (struct da_softc *)periph->softc;
655 softc->flags |= DA_FLAG_OPEN;
657 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
658 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
661 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
662 /* Invalidate our pack information. */
663 softc->flags &= ~DA_FLAG_PACK_INVALID;
666 error = dagetcapacity(periph);
670 softc->disk->d_sectorsize = softc->params.secsize;
671 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
672 /* XXX: these are not actually "firmware" values, so they may be wrong */
673 softc->disk->d_fwsectors = softc->params.secs_per_track;
674 softc->disk->d_fwheads = softc->params.heads;
675 softc->disk->d_devstat->block_size = softc->params.secsize;
676 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
678 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
679 (softc->quirks & DA_Q_NO_PREVENT) == 0)
680 daprevent(periph, PR_PREVENT);
682 softc->flags &= ~DA_FLAG_OPEN;
684 cam_periph_unhold(periph);
685 cam_periph_unlock(periph);
688 cam_periph_release(periph);
694 daclose(struct disk *dp)
696 struct cam_periph *periph;
697 struct da_softc *softc;
700 periph = (struct cam_periph *)dp->d_drv1;
704 cam_periph_lock(periph);
705 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
706 cam_periph_unlock(periph);
707 cam_periph_release(periph);
711 softc = (struct da_softc *)periph->softc;
713 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
716 ccb = cam_periph_getccb(periph, /*priority*/1);
718 scsi_synchronize_cache(&ccb->csio,
722 /*begin_lba*/0,/* Cover the whole disk */
727 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
728 /*sense_flags*/SF_RETRY_UA,
729 softc->disk->d_devstat);
731 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
732 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
733 CAM_SCSI_STATUS_ERROR) {
735 int sense_key, error_code;
737 scsi_extract_sense(&ccb->csio.sense_data,
741 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
742 scsi_sense_print(&ccb->csio);
744 xpt_print(periph->path, "Synchronize cache "
745 "failed, status == 0x%x, scsi status == "
746 "0x%x\n", ccb->csio.ccb_h.status,
747 ccb->csio.scsi_status);
751 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
752 cam_release_devq(ccb->ccb_h.path,
758 xpt_release_ccb(ccb);
762 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
763 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
764 daprevent(periph, PR_ALLOW);
766 * If we've got removeable media, mark the blocksize as
767 * unavailable, since it could change when new media is
770 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
773 softc->flags &= ~DA_FLAG_OPEN;
774 cam_periph_unhold(periph);
775 cam_periph_unlock(periph);
776 cam_periph_release(periph);
781 * Actually translate the requested transfer into one the physical driver
782 * can understand. The transfer is described by a buf and will include
783 * only one physical transfer.
786 dastrategy(struct bio *bp)
788 struct cam_periph *periph;
789 struct da_softc *softc;
791 periph = (struct cam_periph *)bp->bio_disk->d_drv1;
792 if (periph == NULL) {
793 biofinish(bp, NULL, ENXIO);
796 softc = (struct da_softc *)periph->softc;
798 cam_periph_lock(periph);
802 * check it's not too big a transfer for our adapter
804 scsi_minphys(bp,&sd_switch);
808 * Mask interrupts so that the pack cannot be invalidated until
809 * after we are in the queue. Otherwise, we might not properly
810 * clean up one of the buffers.
814 * If the device has been made invalid, error out
816 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
817 cam_periph_unlock(periph);
818 biofinish(bp, NULL, ENXIO);
823 * Place it in the queue of disk activities for this disk
825 bioq_disksort(&softc->bio_queue, bp);
828 * Schedule ourselves for performing the work.
830 xpt_schedule(periph, /* XXX priority */1);
831 cam_periph_unlock(periph);
837 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
839 struct cam_periph *periph;
840 struct da_softc *softc;
842 struct ccb_scsiio csio;
849 softc = (struct da_softc *)periph->softc;
850 cam_periph_lock(periph);
851 secsize = softc->params.secsize;
853 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
854 cam_periph_unlock(periph);
859 periph->flags |= CAM_PERIPH_POLLED;
860 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
861 csio.ccb_h.ccb_state = DA_CCB_DUMP;
862 scsi_read_write(&csio,
868 /*minimum_cmd_size*/ softc->minimum_cmd_size,
871 /*data_ptr*/(u_int8_t *) virtual,
873 /*sense_len*/SSD_FULL_SIZE,
874 DA_DEFAULT_TIMEOUT * 1000);
875 xpt_polled_action((union ccb *)&csio);
877 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
878 printf("Aborting dump due to I/O error.\n");
879 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
880 CAM_SCSI_STATUS_ERROR)
881 scsi_sense_print(&csio);
883 printf("status == 0x%x, scsi status == 0x%x\n",
884 csio.ccb_h.status, csio.scsi_status);
885 periph->flags |= CAM_PERIPH_POLLED;
888 cam_periph_unlock(periph);
893 * Sync the disk cache contents to the physical media.
895 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
897 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
898 csio.ccb_h.ccb_state = DA_CCB_DUMP;
899 scsi_synchronize_cache(&csio,
903 /*begin_lba*/0,/* Cover the whole disk */
907 xpt_polled_action((union ccb *)&csio);
909 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
910 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
911 CAM_SCSI_STATUS_ERROR) {
913 int sense_key, error_code;
915 scsi_extract_sense(&csio.sense_data,
919 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
920 scsi_sense_print(&csio);
922 xpt_print(periph->path, "Synchronize cache "
923 "failed, status == 0x%x, scsi status == "
924 "0x%x\n", csio.ccb_h.status,
929 periph->flags &= ~CAM_PERIPH_POLLED;
930 cam_periph_unlock(periph);
940 * Install a global async callback. This callback will
941 * receive async callbacks like "new device found".
943 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
945 if (status != CAM_REQ_CMP) {
946 printf("da: Failed to attach master async callback "
947 "due to status 0x%x!\n", status);
948 } else if (da_send_ordered) {
950 /* Register our shutdown event handler */
951 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
952 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
953 printf("dainit: shutdown event registration failed!\n");
958 daoninvalidate(struct cam_periph *periph)
960 struct da_softc *softc;
962 softc = (struct da_softc *)periph->softc;
965 * De-register any async callbacks.
967 xpt_register_async(0, daasync, periph, periph->path);
969 softc->flags |= DA_FLAG_PACK_INVALID;
972 * Return all queued I/O with ENXIO.
973 * XXX Handle any transactions queued to the card
974 * with XPT_ABORT_CCB.
976 bioq_flush(&softc->bio_queue, NULL, ENXIO);
978 disk_gone(softc->disk);
979 xpt_print(periph->path, "lost device\n");
983 dacleanup(struct cam_periph *periph)
985 struct da_softc *softc;
987 softc = (struct da_softc *)periph->softc;
989 xpt_print(periph->path, "removing device entry\n");
990 cam_periph_unlock(periph);
993 * If we can't free the sysctl tree, oh well...
995 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
996 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
997 xpt_print(periph->path, "can't remove sysctl context\n");
1000 disk_destroy(softc->disk);
1001 callout_drain(&softc->sendordered_c);
1002 free(softc, M_DEVBUF);
1003 cam_periph_lock(periph);
1007 daasync(void *callback_arg, u_int32_t code,
1008 struct cam_path *path, void *arg)
1010 struct cam_periph *periph;
1012 periph = (struct cam_periph *)callback_arg;
1014 case AC_FOUND_DEVICE:
1016 struct ccb_getdev *cgd;
1019 cgd = (struct ccb_getdev *)arg;
1023 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1024 && SID_TYPE(&cgd->inq_data) != T_RBC
1025 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1029 * Allocate a peripheral instance for
1030 * this device and start the probe
1033 status = cam_periph_alloc(daregister, daoninvalidate,
1035 "da", CAM_PERIPH_BIO,
1036 cgd->ccb_h.path, daasync,
1037 AC_FOUND_DEVICE, cgd);
1039 if (status != CAM_REQ_CMP
1040 && status != CAM_REQ_INPROG)
1041 printf("daasync: Unable to attach to new device "
1042 "due to status 0x%x\n", status);
1048 struct da_softc *softc;
1049 struct ccb_hdr *ccbh;
1051 softc = (struct da_softc *)periph->softc;
1053 * Don't fail on the expected unit attention
1056 softc->flags |= DA_FLAG_RETRY_UA;
1057 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1058 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1062 cam_periph_async(periph, code, path, arg);
1068 dasysctlinit(void *context, int pending)
1070 struct cam_periph *periph;
1071 struct da_softc *softc;
1072 char tmpstr[80], tmpstr2[80];
1074 periph = (struct cam_periph *)context;
1075 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
1078 softc = (struct da_softc *)periph->softc;
1079 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1080 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1082 sysctl_ctx_init(&softc->sysctl_ctx);
1083 softc->flags |= DA_FLAG_SCTX_INIT;
1084 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1085 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1086 CTLFLAG_RD, 0, tmpstr);
1087 if (softc->sysctl_tree == NULL) {
1088 printf("dasysctlinit: unable to allocate sysctl tree\n");
1089 cam_periph_release(periph);
1094 * Now register the sysctl handler, so the user can the value on
1097 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
1098 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1099 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1100 "Minimum CDB size");
1102 cam_periph_release(periph);
1106 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1110 value = *(int *)arg1;
1112 error = sysctl_handle_int(oidp, &value, 0, req);
1115 || (req->newptr == NULL))
1119 * Acceptable values here are 6, 10, 12 or 16.
1123 else if ((value > 6)
1126 else if ((value > 10)
1129 else if (value > 12)
1132 *(int *)arg1 = value;
1138 daregister(struct cam_periph *periph, void *arg)
1140 struct da_softc *softc;
1141 struct ccb_pathinq cpi;
1142 struct ccb_getdev *cgd;
1146 cgd = (struct ccb_getdev *)arg;
1147 if (periph == NULL) {
1148 printf("daregister: periph was NULL!!\n");
1149 return(CAM_REQ_CMP_ERR);
1153 printf("daregister: no getdev CCB, can't register device\n");
1154 return(CAM_REQ_CMP_ERR);
1157 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1160 if (softc == NULL) {
1161 printf("daregister: Unable to probe new device. "
1162 "Unable to allocate softc\n");
1163 return(CAM_REQ_CMP_ERR);
1166 LIST_INIT(&softc->pending_ccbs);
1167 softc->state = DA_STATE_PROBE;
1168 bioq_init(&softc->bio_queue);
1169 if (SID_IS_REMOVABLE(&cgd->inq_data))
1170 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1171 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1172 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1174 periph->softc = softc;
1177 * See if this device has any quirks.
1179 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1180 (caddr_t)da_quirk_table,
1181 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1182 sizeof(*da_quirk_table), scsi_inquiry_match);
1185 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1187 softc->quirks = DA_Q_NONE;
1189 /* Check if the SIM does not want 6 byte commands */
1190 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
1191 cpi.ccb_h.func_code = XPT_PATH_INQ;
1192 xpt_action((union ccb *)&cpi);
1193 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1194 softc->quirks |= DA_Q_NO_6_BYTE;
1196 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1199 * RBC devices don't have to support READ(6), only READ(10).
1201 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1202 softc->minimum_cmd_size = 10;
1204 softc->minimum_cmd_size = 6;
1207 * Load the user's default, if any.
1209 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1210 periph->unit_number);
1211 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1214 * 6, 10, 12 and 16 are the currently permissible values.
1216 if (softc->minimum_cmd_size < 6)
1217 softc->minimum_cmd_size = 6;
1218 else if ((softc->minimum_cmd_size > 6)
1219 && (softc->minimum_cmd_size <= 10))
1220 softc->minimum_cmd_size = 10;
1221 else if ((softc->minimum_cmd_size > 10)
1222 && (softc->minimum_cmd_size <= 12))
1223 softc->minimum_cmd_size = 12;
1224 else if (softc->minimum_cmd_size > 12)
1225 softc->minimum_cmd_size = 16;
1228 * Register this media as a disk
1231 mtx_unlock(periph->sim->mtx);
1232 softc->disk = disk_alloc();
1233 softc->disk->d_open = daopen;
1234 softc->disk->d_close = daclose;
1235 softc->disk->d_strategy = dastrategy;
1236 softc->disk->d_dump = dadump;
1237 softc->disk->d_name = "da";
1238 softc->disk->d_drv1 = periph;
1239 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */
1240 softc->disk->d_unit = periph->unit_number;
1241 softc->disk->d_flags = 0;
1242 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1243 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1244 disk_create(softc->disk, DISK_VERSION);
1245 mtx_lock(periph->sim->mtx);
1248 * Add async callbacks for bus reset and
1249 * bus device reset calls. I don't bother
1250 * checking if this fails as, in most cases,
1251 * the system will function just fine without
1252 * them and the only alternative would be to
1253 * not attach the device on failure.
1255 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE,
1256 daasync, periph, periph->path);
1259 * Take an exclusive refcount on the periph while dastart is called
1260 * to finish the probe. The reference will be dropped in dadone at
1263 (void)cam_periph_hold(periph, PRIBIO);
1264 xpt_schedule(periph, /*priority*/5);
1267 * Schedule a periodic event to occasionally send an
1268 * ordered tag to a device.
1270 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1271 callout_reset(&softc->sendordered_c,
1272 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
1273 dasendorderedtag, softc);
1275 return(CAM_REQ_CMP);
1279 dastart(struct cam_periph *periph, union ccb *start_ccb)
1281 struct da_softc *softc;
1283 softc = (struct da_softc *)periph->softc;
1285 switch (softc->state) {
1286 case DA_STATE_NORMAL:
1288 /* Pull a buffer from the queue and get going on it */
1292 * See if there is a buf with work for us to do..
1294 bp = bioq_first(&softc->bio_queue);
1295 if (periph->immediate_priority <= periph->pinfo.priority) {
1296 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1297 ("queuing for immediate ccb\n"));
1298 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1299 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1301 periph->immediate_priority = CAM_PRIORITY_NONE;
1302 wakeup(&periph->ccb_list);
1303 } else if (bp == NULL) {
1304 xpt_release_ccb(start_ccb);
1308 bioq_remove(&softc->bio_queue, bp);
1310 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1311 softc->flags &= ~DA_FLAG_NEED_OTAG;
1312 softc->ordered_tag_count++;
1313 tag_code = MSG_ORDERED_Q_TAG;
1315 tag_code = MSG_SIMPLE_Q_TAG;
1317 switch (bp->bio_cmd) {
1320 scsi_read_write(&start_ccb->csio,
1321 /*retries*/da_retry_count,
1323 /*tag_action*/tag_code,
1324 /*read_op*/bp->bio_cmd == BIO_READ,
1326 softc->minimum_cmd_size,
1327 /*lba*/bp->bio_pblkno,
1328 /*block_count*/bp->bio_bcount /
1329 softc->params.secsize,
1330 /*data_ptr*/ bp->bio_data,
1331 /*dxfer_len*/ bp->bio_bcount,
1332 /*sense_len*/SSD_FULL_SIZE,
1333 /*timeout*/da_default_timeout*1000);
1336 scsi_synchronize_cache(&start_ccb->csio,
1340 /*begin_lba*/0,/* Cover the whole disk */
1343 /*timeout*/da_default_timeout*1000);
1346 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1349 * Block out any asyncronous callbacks
1350 * while we touch the pending ccb list.
1352 LIST_INSERT_HEAD(&softc->pending_ccbs,
1353 &start_ccb->ccb_h, periph_links.le);
1354 softc->outstanding_cmds++;
1356 /* We expect a unit attention from this device */
1357 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1358 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1359 softc->flags &= ~DA_FLAG_RETRY_UA;
1362 start_ccb->ccb_h.ccb_bp = bp;
1363 bp = bioq_first(&softc->bio_queue);
1365 xpt_action(start_ccb);
1369 /* Have more work to do, so ensure we stay scheduled */
1370 xpt_schedule(periph, /* XXX priority */1);
1374 case DA_STATE_PROBE:
1376 struct ccb_scsiio *csio;
1377 struct scsi_read_capacity_data *rcap;
1379 rcap = (struct scsi_read_capacity_data *)
1380 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1382 printf("dastart: Couldn't malloc read_capacity data\n");
1383 /* da_free_periph??? */
1386 csio = &start_ccb->csio;
1387 scsi_read_capacity(csio,
1394 start_ccb->ccb_h.ccb_bp = NULL;
1395 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1396 xpt_action(start_ccb);
1399 case DA_STATE_PROBE2:
1401 struct ccb_scsiio *csio;
1402 struct scsi_read_capacity_data_long *rcaplong;
1404 rcaplong = (struct scsi_read_capacity_data_long *)
1405 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1406 if (rcaplong == NULL) {
1407 printf("dastart: Couldn't malloc read_capacity data\n");
1408 /* da_free_periph??? */
1411 csio = &start_ccb->csio;
1412 scsi_read_capacity_16(csio,
1415 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1420 /*sense_len*/ SSD_FULL_SIZE,
1422 start_ccb->ccb_h.ccb_bp = NULL;
1423 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1424 xpt_action(start_ccb);
1431 cmd6workaround(union ccb *ccb)
1433 struct scsi_rw_6 cmd6;
1434 struct scsi_rw_10 *cmd10;
1435 struct da_softc *softc;
1439 cdb = ccb->csio.cdb_io.cdb_bytes;
1441 /* Translation only possible if CDB is an array and cmd is R/W6 */
1442 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1443 (*cdb != READ_6 && *cdb != WRITE_6))
1446 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1447 "increasing minimum_cmd_size to 10.\n");
1448 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1449 softc->minimum_cmd_size = 10;
1451 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1452 cmd10 = (struct scsi_rw_10 *)cdb;
1453 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1455 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1456 cmd10->reserved = 0;
1457 scsi_ulto2b(cmd6.length, cmd10->length);
1458 cmd10->control = cmd6.control;
1459 ccb->csio.cdb_len = sizeof(*cmd10);
1461 /* Requeue request, unfreezing queue if necessary */
1462 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1463 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1466 cam_release_devq(ccb->ccb_h.path,
1470 /*getcount_only*/0);
1476 dadone(struct cam_periph *periph, union ccb *done_ccb)
1478 struct da_softc *softc;
1479 struct ccb_scsiio *csio;
1481 softc = (struct da_softc *)periph->softc;
1482 csio = &done_ccb->csio;
1483 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1484 case DA_CCB_BUFFER_IO:
1488 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1489 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1493 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1498 error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1499 if (error == ERESTART) {
1501 * A retry was scheuled, so
1508 if (error == ENXIO) {
1510 * Catastrophic error. Mark our pack as
1514 * XXX See if this is really a media
1517 xpt_print(periph->path,
1518 "Invalidating pack\n");
1519 softc->flags |= DA_FLAG_PACK_INVALID;
1523 * return all queued I/O with EIO, so that
1524 * the client can retry these I/Os in the
1525 * proper order should it attempt to recover.
1527 bioq_flush(&softc->bio_queue, NULL, EIO);
1528 bp->bio_error = error;
1529 bp->bio_resid = bp->bio_bcount;
1530 bp->bio_flags |= BIO_ERROR;
1532 bp->bio_resid = csio->resid;
1534 if (bp->bio_resid != 0)
1535 bp->bio_flags |= BIO_ERROR;
1537 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1538 cam_release_devq(done_ccb->ccb_h.path,
1542 /*getcount_only*/0);
1544 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1545 panic("REQ_CMP with QFRZN");
1546 bp->bio_resid = csio->resid;
1547 if (csio->resid > 0)
1548 bp->bio_flags |= BIO_ERROR;
1552 * Block out any asyncronous callbacks
1553 * while we touch the pending ccb list.
1555 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1556 softc->outstanding_cmds--;
1557 if (softc->outstanding_cmds == 0)
1558 softc->flags |= DA_FLAG_WENT_IDLE;
1566 struct scsi_read_capacity_data *rdcap;
1567 struct scsi_read_capacity_data_long *rcaplong;
1568 char announce_buf[80];
1572 if (softc->state == DA_STATE_PROBE)
1573 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1575 rcaplong = (struct scsi_read_capacity_data_long *)
1578 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1579 struct disk_params *dp;
1580 uint32_t block_size;
1583 if (softc->state == DA_STATE_PROBE) {
1584 block_size = scsi_4btoul(rdcap->length);
1585 maxsector = scsi_4btoul(rdcap->addr);
1588 * According to SBC-2, if the standard 10
1589 * byte READ CAPACITY command returns 2^32,
1590 * we should issue the 16 byte version of
1591 * the command, since the device in question
1592 * has more sectors than can be represented
1593 * with the short version of the command.
1595 if (maxsector == 0xffffffff) {
1596 softc->state = DA_STATE_PROBE2;
1597 free(rdcap, M_SCSIDA);
1598 xpt_release_ccb(done_ccb);
1599 xpt_schedule(periph, /*priority*/5);
1603 block_size = scsi_4btoul(rcaplong->length);
1604 maxsector = scsi_8btou64(rcaplong->addr);
1608 * Because GEOM code just will panic us if we
1609 * give them an 'illegal' value we'll avoid that
1612 if (block_size >= MAXPHYS || block_size == 0) {
1613 xpt_print(periph->path,
1614 "unsupportable block size %ju\n",
1615 (uintmax_t) block_size);
1616 announce_buf[0] = '\0';
1617 cam_periph_invalidate(periph);
1619 dasetgeom(periph, block_size, maxsector);
1620 dp = &softc->params;
1621 snprintf(announce_buf, sizeof(announce_buf),
1622 "%juMB (%ju %u byte sectors: %dH %dS/T "
1624 (((uintmax_t)dp->secsize *
1625 dp->sectors) / (1024*1024)),
1626 (uintmax_t)dp->sectors,
1627 dp->secsize, dp->heads,
1628 dp->secs_per_track, dp->cylinders);
1633 announce_buf[0] = '\0';
1636 * Retry any UNIT ATTENTION type errors. They
1637 * are expected at boot.
1639 error = daerror(done_ccb, CAM_RETRY_SELTO,
1640 SF_RETRY_UA|SF_NO_PRINT);
1641 if (error == ERESTART) {
1643 * A retry was scheuled, so
1647 } else if (error != 0) {
1648 struct scsi_sense_data *sense;
1650 int sense_key, error_code;
1653 struct ccb_getdev cgd;
1655 /* Don't wedge this device's queue */
1656 status = done_ccb->ccb_h.status;
1657 if ((status & CAM_DEV_QFRZN) != 0)
1658 cam_release_devq(done_ccb->ccb_h.path,
1662 /*getcount_only*/0);
1665 xpt_setup_ccb(&cgd.ccb_h,
1666 done_ccb->ccb_h.path,
1668 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1669 xpt_action((union ccb *)&cgd);
1671 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1672 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1673 || ((status & CAM_AUTOSNS_VALID) == 0))
1679 sense = &csio->sense_data;
1680 scsi_extract_sense(sense, &error_code,
1685 * Attach to anything that claims to be a
1686 * direct access or optical disk device,
1687 * as long as it doesn't return a "Logical
1688 * unit not supported" (0x25) error.
1690 if ((have_sense) && (asc != 0x25)
1691 && (error_code == SSD_CURRENT_ERROR)) {
1692 const char *sense_key_desc;
1693 const char *asc_desc;
1695 scsi_sense_desc(sense_key, asc, ascq,
1699 snprintf(announce_buf,
1700 sizeof(announce_buf),
1701 "Attempt to query device "
1702 "size failed: %s, %s",
1710 xpt_print(periph->path,
1711 "got CAM status %#x\n",
1712 done_ccb->ccb_h.status);
1715 xpt_print(periph->path, "fatal error, "
1716 "failed to attach to device\n");
1719 * Free up resources.
1721 cam_periph_invalidate(periph);
1725 free(csio->data_ptr, M_SCSIDA);
1726 if (announce_buf[0] != '\0') {
1727 xpt_announce_periph(periph, announce_buf);
1729 * Create our sysctl variables, now that we know
1730 * we have successfully attached.
1732 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1734 softc->state = DA_STATE_NORMAL;
1736 * Since our peripheral may be invalidated by an error
1737 * above or an external event, we must release our CCB
1738 * before releasing the probe lock on the peripheral.
1739 * The peripheral will only go away once the last lock
1740 * is removed, and we need it around for the CCB release
1743 xpt_release_ccb(done_ccb);
1744 cam_periph_unhold(periph);
1747 case DA_CCB_WAITING:
1749 /* Caller will release the CCB */
1750 wakeup(&done_ccb->ccb_h.cbfcnp);
1754 /* No-op. We're polling */
1759 xpt_release_ccb(done_ccb);
1763 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1765 struct da_softc *softc;
1766 struct cam_periph *periph;
1769 periph = xpt_path_periph(ccb->ccb_h.path);
1770 softc = (struct da_softc *)periph->softc;
1773 * Automatically detect devices that do not support
1774 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1777 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1778 error = cmd6workaround(ccb);
1779 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1780 CAM_SCSI_STATUS_ERROR)
1781 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1782 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1783 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1784 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1785 int sense_key, error_code, asc, ascq;
1787 scsi_extract_sense(&ccb->csio.sense_data,
1788 &error_code, &sense_key, &asc, &ascq);
1789 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1790 error = cmd6workaround(ccb);
1792 if (error == ERESTART)
1797 * Until we have a better way of doing pack validation,
1798 * don't treat UAs as errors.
1800 sense_flags |= SF_RETRY_UA;
1801 return(cam_periph_error(ccb, cam_flags, sense_flags,
1802 &softc->saved_ccb));
1806 daprevent(struct cam_periph *periph, int action)
1808 struct da_softc *softc;
1812 softc = (struct da_softc *)periph->softc;
1814 if (((action == PR_ALLOW)
1815 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1816 || ((action == PR_PREVENT)
1817 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1821 ccb = cam_periph_getccb(periph, /*priority*/1);
1823 scsi_prevent(&ccb->csio,
1831 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
1832 SF_RETRY_UA, softc->disk->d_devstat);
1835 if (action == PR_ALLOW)
1836 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1838 softc->flags |= DA_FLAG_PACK_LOCKED;
1841 xpt_release_ccb(ccb);
1845 dagetcapacity(struct cam_periph *periph)
1847 struct da_softc *softc;
1849 struct scsi_read_capacity_data *rcap;
1850 struct scsi_read_capacity_data_long *rcaplong;
1854 u_int32_t sense_flags;
1856 softc = (struct da_softc *)periph->softc;
1860 sense_flags = SF_RETRY_UA;
1861 if (softc->flags & DA_FLAG_PACK_REMOVABLE)
1862 sense_flags |= SF_NO_PRINT;
1864 /* Do a read capacity */
1865 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
1871 ccb = cam_periph_getccb(periph, /*priority*/1);
1872 scsi_read_capacity(&ccb->csio,
1879 ccb->ccb_h.ccb_bp = NULL;
1881 error = cam_periph_runccb(ccb, daerror,
1882 /*cam_flags*/CAM_RETRY_SELTO,
1884 softc->disk->d_devstat);
1886 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1887 cam_release_devq(ccb->ccb_h.path,
1891 /*getcount_only*/0);
1894 block_len = scsi_4btoul(rcap->length);
1895 maxsector = scsi_4btoul(rcap->addr);
1897 if (maxsector != 0xffffffff)
1902 rcaplong = (struct scsi_read_capacity_data_long *)rcap;
1904 scsi_read_capacity_16(&ccb->csio,
1907 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1912 /*sense_len*/ SSD_FULL_SIZE,
1914 ccb->ccb_h.ccb_bp = NULL;
1916 error = cam_periph_runccb(ccb, daerror,
1917 /*cam_flags*/CAM_RETRY_SELTO,
1919 softc->disk->d_devstat);
1921 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1922 cam_release_devq(ccb->ccb_h.path,
1926 /*getcount_only*/0);
1929 block_len = scsi_4btoul(rcaplong->length);
1930 maxsector = scsi_8btou64(rcaplong->addr);
1936 dasetgeom(periph, block_len, maxsector);
1938 xpt_release_ccb(ccb);
1940 free(rcap, M_SCSIDA);
1946 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
1948 struct ccb_calc_geometry ccg;
1949 struct da_softc *softc;
1950 struct disk_params *dp;
1952 softc = (struct da_softc *)periph->softc;
1954 dp = &softc->params;
1955 dp->secsize = block_len;
1956 dp->sectors = maxsector + 1;
1958 * Have the controller provide us with a geometry
1959 * for this disk. The only time the geometry
1960 * matters is when we boot and the controller
1961 * is the only one knowledgeable enough to come
1962 * up with something that will make this a bootable
1965 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1966 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1967 ccg.block_size = dp->secsize;
1968 ccg.volume_size = dp->sectors;
1970 ccg.secs_per_track = 0;
1972 xpt_action((union ccb*)&ccg);
1973 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1975 * We don't know what went wrong here- but just pick
1976 * a geometry so we don't have nasty things like divide
1980 dp->secs_per_track = 255;
1981 dp->cylinders = dp->sectors / (255 * 255);
1982 if (dp->cylinders == 0) {
1986 dp->heads = ccg.heads;
1987 dp->secs_per_track = ccg.secs_per_track;
1988 dp->cylinders = ccg.cylinders;
1993 dasendorderedtag(void *arg)
1995 struct da_softc *softc = arg;
1997 if (da_send_ordered) {
1998 if ((softc->ordered_tag_count == 0)
1999 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2000 softc->flags |= DA_FLAG_NEED_OTAG;
2002 if (softc->outstanding_cmds > 0)
2003 softc->flags &= ~DA_FLAG_WENT_IDLE;
2005 softc->ordered_tag_count = 0;
2007 /* Queue us up again */
2008 callout_reset(&softc->sendordered_c,
2009 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
2010 dasendorderedtag, softc);
2014 * Step through all DA peripheral drivers, and if the device is still open,
2015 * sync the disk cache to physical media.
2018 dashutdown(void * arg, int howto)
2020 struct cam_periph *periph;
2021 struct da_softc *softc;
2023 TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2026 cam_periph_lock(periph);
2027 softc = (struct da_softc *)periph->softc;
2030 * We only sync the cache if the drive is still open, and
2031 * if the drive is capable of it..
2033 if (((softc->flags & DA_FLAG_OPEN) == 0)
2034 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2035 cam_periph_unlock(periph);
2039 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
2041 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2042 scsi_synchronize_cache(&ccb.csio,
2046 /*begin_lba*/0, /* whole disk */
2051 xpt_polled_action(&ccb);
2053 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2054 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2055 CAM_SCSI_STATUS_ERROR)
2056 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2057 int error_code, sense_key, asc, ascq;
2059 scsi_extract_sense(&ccb.csio.sense_data,
2060 &error_code, &sense_key,
2063 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2064 scsi_sense_print(&ccb.csio);
2066 xpt_print(periph->path, "Synchronize "
2067 "cache failed, status == 0x%x, scsi status "
2068 "== 0x%x\n", ccb.ccb_h.status,
2069 ccb.csio.scsi_status);
2073 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2074 cam_release_devq(ccb.ccb_h.path,
2078 /*getcount_only*/0);
2079 cam_periph_unlock(periph);
2083 #else /* !_KERNEL */
2086 * XXX This is only left out of the kernel build to silence warnings. If,
2087 * for some reason this function is used in the kernel, the ifdefs should
2088 * be moved so it is included both in the kernel and userland.
2091 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2092 void (*cbfcnp)(struct cam_periph *, union ccb *),
2093 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2094 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2097 struct scsi_format_unit *scsi_cmd;
2099 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2100 scsi_cmd->opcode = FORMAT_UNIT;
2101 scsi_cmd->byte2 = byte2;
2102 scsi_ulto2b(ileave, scsi_cmd->interleave);
2107 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2116 #endif /* _KERNEL */