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 1.59 2008/08/29 20:08:40 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 */
1476 * See if there is a buf with work for us to do..
1478 bio = bioq_first(&softc->bio_queue);
1479 if (periph->immediate_priority <= periph->pinfo.priority) {
1480 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1481 ("queuing for immediate ccb\n"));
1482 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1483 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1485 periph->immediate_priority = CAM_PRIORITY_NONE;
1486 wakeup(&periph->ccb_list);
1489 * Have more work to do, so ensure we stay
1492 xpt_schedule(periph, /* XXX priority */1);
1497 xpt_release_ccb(start_ccb);
1502 * We can queue new work.
1504 bioq_remove(&softc->bio_queue, bio);
1507 devstat_start_transaction(&softc->device_stats);
1509 if ((bp->b_flags & B_ORDERED) != 0 ||
1510 (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1511 softc->flags &= ~DA_FLAG_NEED_OTAG;
1512 softc->ordered_tag_count++;
1513 tag_code = MSG_ORDERED_Q_TAG;
1515 tag_code = MSG_SIMPLE_Q_TAG;
1522 * Block read/write op
1524 KKASSERT(bio->bio_offset % softc->params.secsize == 0);
1528 da_retry_count, /* retries */
1531 (bp->b_cmd == BUF_CMD_READ),
1533 softc->minimum_cmd_size,
1534 bio->bio_offset / softc->params.secsize,
1535 bp->b_bcount / softc->params.secsize,
1538 SSD_FULL_SIZE, /* sense_len */
1539 da_default_timeout * 1000
1543 scsi_synchronize_cache(
1546 dadone, /* cbfcnp */
1549 0, /* count (whole disk) */
1551 da_default_timeout*1000 /* timeout */
1555 panic("dastart: unrecognized bio cmd %d", bp->b_cmd);
1556 break; /* NOT REACHED */
1560 * Block out any asyncronous callbacks
1561 * while we touch the pending ccb list.
1563 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1564 LIST_INSERT_HEAD(&softc->pending_ccbs,
1565 &start_ccb->ccb_h, periph_links.le);
1566 softc->outstanding_cmds++;
1568 /* We expect a unit attention from this device */
1569 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1570 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1571 softc->flags &= ~DA_FLAG_RETRY_UA;
1574 start_ccb->ccb_h.ccb_bio = bio;
1575 xpt_action(start_ccb);
1578 * Be sure we stay scheduled if we have more work to do.
1580 bio = bioq_first(&softc->bio_queue);
1582 xpt_schedule(periph, 1);
1585 case DA_STATE_PROBE:
1587 struct ccb_scsiio *csio;
1588 struct scsi_read_capacity_data *rcap;
1590 rcap = kmalloc(sizeof(*rcap), M_SCSIDA, M_INTWAIT | M_ZERO);
1591 csio = &start_ccb->csio;
1592 scsi_read_capacity(csio,
1599 start_ccb->ccb_h.ccb_bio = NULL;
1600 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1601 xpt_action(start_ccb);
1604 case DA_STATE_PROBE2:
1606 struct ccb_scsiio *csio;
1607 struct scsi_read_capacity_data_long *rcaplong;
1609 rcaplong = (struct scsi_read_capacity_data_long *)
1610 kmalloc(sizeof(*rcaplong), M_SCSIDA, M_INTWAIT | M_ZERO);
1611 if (rcaplong == NULL) {
1612 kprintf("dastart: Couldn't allocate read_capacity\n");
1613 /* da_free_periph??? */
1616 csio = &start_ccb->csio;
1617 scsi_read_capacity_16(csio,
1620 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1625 /*sense_len*/ SSD_FULL_SIZE,
1627 start_ccb->ccb_h.ccb_bio = NULL;
1628 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1629 xpt_action(start_ccb);
1636 cmd6workaround(union ccb *ccb)
1638 struct scsi_rw_6 cmd6;
1639 struct scsi_rw_10 *cmd10;
1640 struct da_softc *softc;
1644 cdb = ccb->csio.cdb_io.cdb_bytes;
1646 /* Translation only possible if CDB is an array and cmd is R/W6 */
1647 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1648 (*cdb != READ_6 && *cdb != WRITE_6))
1651 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1652 "increasing minimum_cmd_size to 10.\n");
1653 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1654 softc->minimum_cmd_size = 10;
1656 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1657 cmd10 = (struct scsi_rw_10 *)cdb;
1658 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1660 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1661 cmd10->reserved = 0;
1662 scsi_ulto2b(cmd6.length, cmd10->length);
1663 cmd10->control = cmd6.control;
1664 ccb->csio.cdb_len = sizeof(*cmd10);
1666 /* Requeue request, unfreezing queue if necessary */
1667 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1668 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1671 cam_release_devq(ccb->ccb_h.path,
1675 /*getcount_only*/0);
1681 dadone(struct cam_periph *periph, union ccb *done_ccb)
1683 struct da_softc *softc;
1684 struct ccb_scsiio *csio;
1686 softc = (struct da_softc *)periph->softc;
1687 csio = &done_ccb->csio;
1688 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1689 case DA_CCB_BUFFER_IO:
1694 bio = (struct bio *)done_ccb->ccb_h.ccb_bio;
1696 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1700 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1705 error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1706 if (error == ERESTART) {
1708 * A retry was scheuled, so
1717 if (error == ENXIO) {
1719 * Catastrophic error. Mark our pack as
1723 * XXX See if this is really a media
1726 xpt_print(periph->path,
1727 "Invalidating pack\n");
1728 softc->flags |= DA_FLAG_PACK_INVALID;
1732 * return all queued I/O with EIO, so that
1733 * the client can retry these I/Os in the
1734 * proper order should it attempt to recover.
1736 while ((q_bio = bioq_first(&softc->bio_queue))
1738 bioq_remove(&softc->bio_queue, q_bio);
1739 q_bp = q_bio->bio_buf;
1740 q_bp->b_resid = q_bp->b_bcount;
1741 q_bp->b_error = EIO;
1742 q_bp->b_flags |= B_ERROR;
1745 bp->b_error = error;
1746 bp->b_resid = bp->b_bcount;
1747 bp->b_flags |= B_ERROR;
1749 bp->b_resid = csio->resid;
1751 if (bp->b_resid != 0)
1752 bp->b_flags |= B_ERROR;
1754 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1755 cam_release_devq(done_ccb->ccb_h.path,
1759 /*getcount_only*/0);
1761 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1762 panic("REQ_CMP with QFRZN");
1763 bp->b_resid = csio->resid;
1764 if (csio->resid > 0)
1765 bp->b_flags |= B_ERROR;
1769 * Block out any asyncronous callbacks
1770 * while we touch the pending ccb list.
1772 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1773 softc->outstanding_cmds--;
1774 if (softc->outstanding_cmds == 0)
1775 softc->flags |= DA_FLAG_WENT_IDLE;
1777 devstat_end_transaction_buf(&softc->device_stats, bp);
1784 struct scsi_read_capacity_data *rdcap;
1785 struct scsi_read_capacity_data_long *rcaplong;
1786 char announce_buf[80];
1790 if (softc->state == DA_STATE_PROBE)
1791 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1793 rcaplong = (struct scsi_read_capacity_data_long *)
1796 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1797 struct disk_params *dp;
1798 uint32_t block_size;
1801 if (softc->state == DA_STATE_PROBE) {
1802 block_size = scsi_4btoul(rdcap->length);
1803 maxsector = scsi_4btoul(rdcap->addr);
1806 * According to SBC-2, if the standard 10
1807 * byte READ CAPACITY command returns 2^32,
1808 * we should issue the 16 byte version of
1809 * the command, since the device in question
1810 * has more sectors than can be represented
1811 * with the short version of the command.
1813 if (maxsector == 0xffffffff) {
1814 softc->state = DA_STATE_PROBE2;
1815 kfree(rdcap, M_SCSIDA);
1816 xpt_release_ccb(done_ccb);
1817 xpt_schedule(periph, /*priority*/5);
1821 block_size = scsi_4btoul(rcaplong->length);
1822 maxsector = scsi_8btou64(rcaplong->addr);
1824 dasetgeom(periph, block_size, maxsector);
1825 dp = &softc->params;
1826 ksnprintf(announce_buf, sizeof(announce_buf),
1827 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)",
1828 (uintmax_t) (((uintmax_t)dp->secsize *
1829 dp->sectors) / (1024*1024)),
1830 (uintmax_t)dp->sectors,
1831 dp->secsize, dp->heads, dp->secs_per_track,
1836 announce_buf[0] = '\0';
1839 * Retry any UNIT ATTENTION type errors. They
1840 * are expected at boot.
1842 error = daerror(done_ccb, CAM_RETRY_SELTO,
1843 SF_RETRY_UA|SF_NO_PRINT);
1844 if (error == ERESTART) {
1846 * A retry was scheuled, so
1850 } else if (error != 0) {
1851 struct scsi_sense_data *sense;
1853 int sense_key, error_code;
1856 struct ccb_getdev cgd;
1858 /* Don't wedge this device's queue */
1859 status = done_ccb->ccb_h.status;
1860 if ((status & CAM_DEV_QFRZN) != 0)
1861 cam_release_devq(done_ccb->ccb_h.path,
1865 /*getcount_only*/0);
1868 xpt_setup_ccb(&cgd.ccb_h,
1869 done_ccb->ccb_h.path,
1871 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1872 xpt_action((union ccb *)&cgd);
1874 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1875 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1876 || ((status & CAM_AUTOSNS_VALID) == 0))
1882 sense = &csio->sense_data;
1883 scsi_extract_sense(sense, &error_code,
1888 * Attach to anything that claims to be a
1889 * direct access or optical disk device,
1890 * as long as it doesn't return a "Logical
1891 * unit not supported" (0x25) error.
1893 if ((have_sense) && (asc != 0x25)
1894 && (error_code == SSD_CURRENT_ERROR)) {
1895 const char *sense_key_desc;
1896 const char *asc_desc;
1898 scsi_sense_desc(sense_key, asc, ascq,
1902 ksnprintf(announce_buf,
1903 sizeof(announce_buf),
1904 "Attempt to query device "
1905 "size failed: %s, %s",
1913 xpt_print(periph->path,
1914 "got CAM status %#x\n",
1915 done_ccb->ccb_h.status);
1918 xpt_print(periph->path, "fatal error, "
1919 "failed to attach to device\n");
1922 * Free up resources.
1924 cam_periph_invalidate(periph);
1928 kfree(csio->data_ptr, M_SCSIDA);
1929 if (announce_buf[0] != '\0') {
1930 xpt_announce_periph(periph, announce_buf);
1932 * Create our sysctl variables, now that we know
1933 * we have successfully attached.
1935 taskqueue_enqueue(taskqueue_thread[mycpuid],
1936 &softc->sysctl_task);
1938 softc->state = DA_STATE_NORMAL;
1940 * Since our peripheral may be invalidated by an error
1941 * above or an external event, we must release our CCB
1942 * before releasing the probe lock on the peripheral.
1943 * The peripheral will only go away once the last lock
1944 * is removed, and we need it around for the CCB release
1947 xpt_release_ccb(done_ccb);
1948 cam_periph_unhold(periph, 0);
1951 case DA_CCB_WAITING:
1953 /* Caller will release the CCB */
1954 wakeup(&done_ccb->ccb_h.cbfcnp);
1958 /* No-op. We're polling */
1963 xpt_release_ccb(done_ccb);
1967 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1969 struct da_softc *softc;
1970 struct cam_periph *periph;
1973 periph = xpt_path_periph(ccb->ccb_h.path);
1974 softc = (struct da_softc *)periph->softc;
1977 * Automatically detect devices that do not support
1978 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1981 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1982 error = cmd6workaround(ccb);
1983 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1984 CAM_SCSI_STATUS_ERROR)
1985 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1986 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1987 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1988 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1989 int sense_key, error_code, asc, ascq;
1991 scsi_extract_sense(&ccb->csio.sense_data,
1992 &error_code, &sense_key, &asc, &ascq);
1993 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1994 error = cmd6workaround(ccb);
1996 if (error == ERESTART)
2001 * Until we have a better way of doing pack validation,
2002 * don't treat UAs as errors.
2004 sense_flags |= SF_RETRY_UA;
2005 return(cam_periph_error(ccb, cam_flags, sense_flags,
2006 &softc->saved_ccb));
2010 daprevent(struct cam_periph *periph, int action)
2012 struct da_softc *softc;
2016 softc = (struct da_softc *)periph->softc;
2018 if (((action == PR_ALLOW)
2019 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
2020 || ((action == PR_PREVENT)
2021 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
2025 ccb = cam_periph_getccb(periph, /*priority*/1);
2027 scsi_prevent(&ccb->csio,
2035 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
2036 SF_RETRY_UA, &softc->device_stats);
2039 if (action == PR_ALLOW)
2040 softc->flags &= ~DA_FLAG_PACK_LOCKED;
2042 softc->flags |= DA_FLAG_PACK_LOCKED;
2045 xpt_release_ccb(ccb);
2049 dagetcapacity(struct cam_periph *periph)
2051 struct da_softc *softc;
2053 struct scsi_read_capacity_data *rcap;
2054 struct scsi_read_capacity_data_long *rcaplong;
2059 softc = (struct da_softc *)periph->softc;
2064 /* Do a read capacity */
2065 rcap = (struct scsi_read_capacity_data *)kmalloc(sizeof(*rcaplong),
2066 M_SCSIDA, M_INTWAIT);
2068 ccb = cam_periph_getccb(periph, /*priority*/1);
2069 scsi_read_capacity(&ccb->csio,
2076 ccb->ccb_h.ccb_bio = NULL;
2078 error = cam_periph_runccb(ccb, daerror,
2079 /*cam_flags*/CAM_RETRY_SELTO,
2080 /*sense_flags*/SF_RETRY_UA,
2081 &softc->device_stats);
2083 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2084 cam_release_devq(ccb->ccb_h.path,
2088 /*getcount_only*/0);
2091 block_len = scsi_4btoul(rcap->length);
2092 maxsector = scsi_4btoul(rcap->addr);
2094 if (maxsector != 0xffffffff)
2099 rcaplong = (struct scsi_read_capacity_data_long *)rcap;
2101 scsi_read_capacity_16(&ccb->csio,
2104 /*tag_action*/ MSG_SIMPLE_Q_TAG,
2109 /*sense_len*/ SSD_FULL_SIZE,
2111 ccb->ccb_h.ccb_bio = NULL;
2113 error = cam_periph_runccb(ccb, daerror,
2114 /*cam_flags*/CAM_RETRY_SELTO,
2115 /*sense_flags*/SF_RETRY_UA,
2116 &softc->device_stats);
2118 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2119 cam_release_devq(ccb->ccb_h.path,
2123 /*getcount_only*/0);
2126 block_len = scsi_4btoul(rcaplong->length);
2127 maxsector = scsi_8btou64(rcaplong->addr);
2133 dasetgeom(periph, block_len, maxsector);
2135 xpt_release_ccb(ccb);
2137 kfree(rcap, M_SCSIDA);
2143 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
2145 struct ccb_calc_geometry ccg;
2146 struct da_softc *softc;
2147 struct disk_params *dp;
2149 softc = (struct da_softc *)periph->softc;
2151 dp = &softc->params;
2152 dp->secsize = block_len;
2153 dp->sectors = maxsector + 1;
2155 * Have the controller provide us with a geometry
2156 * for this disk. The only time the geometry
2157 * matters is when we boot and the controller
2158 * is the only one knowledgeable enough to come
2159 * up with something that will make this a bootable
2162 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
2163 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2164 ccg.block_size = dp->secsize;
2165 ccg.volume_size = dp->sectors;
2167 ccg.secs_per_track = 0;
2169 xpt_action((union ccb*)&ccg);
2170 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2172 * We don't know what went wrong here- but just pick
2173 * a geometry so we don't have nasty things like divide
2177 dp->secs_per_track = 255;
2178 dp->cylinders = dp->sectors / (255 * 255);
2179 if (dp->cylinders == 0) {
2183 dp->heads = ccg.heads;
2184 dp->secs_per_track = ccg.secs_per_track;
2185 dp->cylinders = ccg.cylinders;
2190 dasendorderedtag(void *arg)
2192 struct da_softc *softc = arg;
2194 if (da_send_ordered) {
2195 if ((softc->ordered_tag_count == 0)
2196 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2197 softc->flags |= DA_FLAG_NEED_OTAG;
2199 if (softc->outstanding_cmds > 0)
2200 softc->flags &= ~DA_FLAG_WENT_IDLE;
2202 softc->ordered_tag_count = 0;
2204 /* Queue us up again */
2205 callout_reset(&softc->sendordered_c,
2206 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
2207 dasendorderedtag, softc);
2211 * Step through all DA peripheral drivers, and if the device is still open,
2212 * sync the disk cache to physical media.
2215 dashutdown(void * arg, int howto)
2217 struct cam_periph *periph;
2218 struct da_softc *softc;
2220 TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2223 cam_periph_lock(periph);
2224 softc = (struct da_softc *)periph->softc;
2227 * We only sync the cache if the drive is still open, and
2228 * if the drive is capable of it..
2230 if (((softc->flags & DA_FLAG_OPEN) == 0)
2231 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2232 cam_periph_unlock(periph);
2236 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
2238 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2239 scsi_synchronize_cache(&ccb.csio,
2243 /*begin_lba*/0, /* whole disk */
2248 xpt_polled_action(&ccb);
2250 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2251 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2252 CAM_SCSI_STATUS_ERROR)
2253 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2254 int error_code, sense_key, asc, ascq;
2256 scsi_extract_sense(&ccb.csio.sense_data,
2257 &error_code, &sense_key,
2260 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2261 scsi_sense_print(&ccb.csio);
2263 xpt_print(periph->path, "Synchronize "
2264 "cache failed, status == 0x%x, scsi status "
2265 "== 0x%x\n", ccb.ccb_h.status,
2266 ccb.csio.scsi_status);
2270 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2271 cam_release_devq(ccb.ccb_h.path,
2275 /*getcount_only*/0);
2277 cam_periph_unlock(periph);
2281 #else /* !_KERNEL */
2284 * XXX This is only left out of the kernel build to silence warnings. If,
2285 * for some reason this function is used in the kernel, the ifdefs should
2286 * be moved so it is included both in the kernel and userland.
2289 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2290 void (*cbfcnp)(struct cam_periph *, union ccb *),
2291 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2292 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2295 struct scsi_format_unit *scsi_cmd;
2297 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2298 scsi_cmd->opcode = FORMAT_UNIT;
2299 scsi_cmd->byte2 = byte2;
2300 scsi_ulto2b(ileave, scsi_cmd->interleave);
2305 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2314 #endif /* _KERNEL */