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 1.32 2006/09/10 01:26:32 dillon Exp $
33 #include "opt_hw_wdog.h"
36 #include <sys/param.h>
37 #include <sys/bootmaj.h>
40 #include <sys/systm.h>
41 #include <sys/kernel.h>
43 #include <sys/sysctl.h>
44 #include <sys/taskqueue.h>
47 #include <sys/devicestat.h>
51 #include <sys/eventhandler.h>
52 #include <sys/malloc.h>
58 #include <sys/thread2.h>
61 #include <machine/md_var.h>
74 #include "../cam_ccb.h"
75 #include "../cam_extend.h"
76 #include "../cam_periph.h"
77 #include "../cam_xpt_periph.h"
79 #include "scsi_message.h"
92 DA_FLAG_PACK_INVALID = 0x001,
93 DA_FLAG_NEW_PACK = 0x002,
94 DA_FLAG_PACK_LOCKED = 0x004,
95 DA_FLAG_PACK_REMOVABLE = 0x008,
96 DA_FLAG_TAGGED_QUEUING = 0x010,
97 DA_FLAG_NEED_OTAG = 0x020,
98 DA_FLAG_WENT_IDLE = 0x040,
99 DA_FLAG_RETRY_UA = 0x080,
100 DA_FLAG_OPEN = 0x100,
101 DA_FLAG_SCTX_INIT = 0x200
106 DA_Q_NO_SYNC_CACHE = 0x01,
107 DA_Q_NO_6_BYTE = 0x02,
108 DA_Q_NO_PREVENT = 0x04
113 DA_CCB_BUFFER_IO = 0x02,
114 DA_CCB_WAITING = 0x03,
116 DA_CCB_TYPE_MASK = 0x0F,
117 DA_CCB_RETRY_UA = 0x10
120 /* Offsets into our private area for storing information */
121 #define ccb_state ppriv_field0
122 #define ccb_bio ppriv_ptr1
127 u_int8_t secs_per_track;
128 u_int32_t secsize; /* Number of bytes/sector */
129 u_int32_t sectors; /* total number sectors */
133 struct bio_queue_head bio_queue;
134 struct devstat device_stats;
135 SLIST_ENTRY(da_softc) links;
136 LIST_HEAD(, ccb_hdr) pending_ccbs;
140 int minimum_cmd_size;
141 int ordered_tag_count;
142 struct disk_params params;
145 struct task sysctl_task;
146 struct sysctl_ctx_list sysctl_ctx;
147 struct sysctl_oid *sysctl_tree;
150 struct da_quirk_entry {
151 struct scsi_inquiry_pattern inq_pat;
155 static const char quantum[] = "QUANTUM";
156 static const char microp[] = "MICROP";
158 static struct da_quirk_entry da_quirk_table[] =
160 /* SPI, FC devices */
163 * Fujitsu M2513A MO drives.
164 * Tested devices: M2513A2 firmware versions 1200 & 1300.
165 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
166 * Reported by: W.Scholten <whs@xs4all.nl>
168 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
169 /*quirks*/ DA_Q_NO_SYNC_CACHE
173 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
174 /*quirks*/ DA_Q_NO_SYNC_CACHE
178 * This particular Fujitsu drive doesn't like the
179 * synchronize cache command.
180 * Reported by: Tom Jackson <toj@gorilla.net>
182 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
183 /*quirks*/ DA_Q_NO_SYNC_CACHE
188 * This drive doesn't like the synchronize cache command
189 * either. Reported by: Matthew Jacob <mjacob@feral.com>
190 * in NetBSD PR kern/6027, August 24, 1998.
192 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
193 /*quirks*/ DA_Q_NO_SYNC_CACHE
197 * This drive doesn't like the synchronize cache command
198 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
201 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
202 /*quirks*/ DA_Q_NO_SYNC_CACHE
206 * Doesn't like the synchronize cache command.
207 * Reported by: Blaz Zupan <blaz@gold.amis.net>
209 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
210 /*quirks*/ DA_Q_NO_SYNC_CACHE
214 * Doesn't like the synchronize cache command.
216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
217 /*quirks*/ DA_Q_NO_SYNC_CACHE
221 * Doesn't like the synchronize cache command.
223 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
224 /*quirks*/ DA_Q_NO_SYNC_CACHE
228 * Doesn't work correctly with 6 byte reads/writes.
229 * Returns illegal request, and points to byte 9 of the
231 * Reported by: Adam McDougall <bsdx@spawnet.com>
233 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
234 /*quirks*/ DA_Q_NO_6_BYTE
238 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
239 /*quirks*/ DA_Q_NO_6_BYTE
241 /* XXX USB floppy quirks temporarily enabled for 4.9R */
242 /* USB floppy devices supported by umass(4) */
245 * This USB floppy drive uses the UFI command set. This
246 * command set is a derivative of the ATAPI command set and
247 * does not support READ_6 commands only READ_10. It also does
248 * not support sync cache (0x35).
250 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"},
251 /*quirks*/ DA_Q_NO_SYNC_CACHE
254 /* Another USB floppy */
255 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"},
256 /*quirks*/ DA_Q_NO_SYNC_CACHE
260 * The vendor, product and version strings coming from the
261 * controller are null terminated instead of being padded with
262 * spaces. The trailing wildcard character '*' is required.
264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"},
265 /*quirks*/ DA_Q_NO_SYNC_CACHE
269 * SmartDisk (Mitsumi) USB floppy drive
272 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"},
273 /*quirks*/ DA_Q_NO_SYNC_CACHE
277 * The CISS RAID controllers do not support SYNC_CACHE
279 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
280 /*quirks*/ DA_Q_NO_SYNC_CACHE
283 /* USB mass storage devices supported by umass(4) */
286 * Sony Memory Stick adapter MSAC-US1 and
287 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01).
288 * Make all sony MS* products use this quirk.
290 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"},
291 /*quirks*/ DA_Q_NO_SYNC_CACHE
295 * Sony Memory Stick adapter for the CLIE series
298 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"},
299 /*quirks*/ DA_Q_NO_SYNC_CACHE
303 * Intelligent Stick USB disk-on-key
306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card",
307 "IntelligentStick*", "*"},
308 /*quirks*/ DA_Q_NO_SYNC_CACHE
312 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70)
314 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
315 /*quirks*/ DA_Q_NO_SYNC_CACHE
319 * Microtech USB CameraMate
321 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*",
322 "Compact Flash*", "*"},
323 /*quirks*/ DA_Q_NO_SYNC_CACHE
327 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1)
329 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"},
330 /*quirks*/ DA_Q_NO_SYNC_CACHE
334 * Olympus digital cameras (E-100RS, E-10).
336 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"},
337 /*quirks*/ DA_Q_NO_SYNC_CACHE
341 * KingByte Pen Drives
343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"},
344 /*quirks*/ DA_Q_NO_SYNC_CACHE
348 * iRiver iFP MP3 player (with UMS Firmware)
349 * PR: kern/54881, i386/63941, kern/66124
351 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
352 /*quirks*/ DA_Q_NO_SYNC_CACHE
356 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
359 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "NexIA+*", "*"},
360 /*quirks*/ DA_Q_NO_SYNC_CACHE
366 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT",
367 "USB-DRIVEUNIT", "*"},
368 /*quirks*/ DA_Q_NO_SYNC_CACHE
372 * Minolta Dimage E203
374 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"},
375 /*quirks*/ DA_Q_NO_SYNC_CACHE
382 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"},
383 /*quirks*/ DA_Q_NO_SYNC_CACHE
387 * Daisy Technology PhotoClip on Zoran chip
390 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"},
391 /*quirks*/ DA_Q_NO_SYNC_CACHE
395 * Sony USB Key-Storage
398 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"},
399 /*quirks*/ DA_Q_NO_SYNC_CACHE
401 #endif /* DA_OLD_QUIRKS */
404 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
407 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
408 /*quirks*/ DA_Q_NO_SYNC_CACHE
412 * Jungsoft NEXDISK USB flash key
415 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
416 /*quirks*/ DA_Q_NO_SYNC_CACHE
420 * Creative Nomad MUVO mp3 player (USB)
423 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
424 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
428 static d_open_t daopen;
429 static d_close_t daclose;
430 static d_strategy_t dastrategy;
431 static d_ioctl_t daioctl;
432 static d_dump_t dadump;
433 static periph_init_t dainit;
434 static void daasync(void *callback_arg, u_int32_t code,
435 struct cam_path *path, void *arg);
436 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
437 static periph_ctor_t daregister;
438 static periph_dtor_t dacleanup;
439 static periph_start_t dastart;
440 static periph_oninv_t daoninvalidate;
441 static void dadone(struct cam_periph *periph,
442 union ccb *done_ccb);
443 static int daerror(union ccb *ccb, u_int32_t cam_flags,
444 u_int32_t sense_flags);
445 static void daprevent(struct cam_periph *periph, int action);
446 static void dasetgeom(struct cam_periph *periph,
447 struct scsi_read_capacity_data * rdcap);
448 static timeout_t dasendorderedtag;
449 static void dashutdown(void *arg, int howto);
451 #ifndef DA_DEFAULT_TIMEOUT
452 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
455 #ifndef DA_DEFAULT_RETRY
456 #define DA_DEFAULT_RETRY 4
459 static int da_retry_count = DA_DEFAULT_RETRY;
460 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
461 static struct callout dasendorderedtag_ch;
463 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
464 "CAM Direct Access Disk driver");
465 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
466 &da_retry_count, 0, "Normal I/O retry count");
467 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
468 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
469 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
470 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
473 * DA_ORDEREDTAG_INTERVAL determines how often, relative
474 * to the default timeout, we check to see whether an ordered
475 * tagged transaction is appropriate to prevent simple tag
476 * starvation. Since we'd like to ensure that there is at least
477 * 1/2 of the timeout length left for a starved transaction to
478 * complete after we've sent an ordered tag, we must poll at least
479 * four times in every timeout period. This takes care of the worst
480 * case where a starved transaction starts during an interval that
481 * meets the requirement "don't send an ordered tag" test so it takes
482 * us two intervals to determine that a tag must be sent.
484 #ifndef DA_ORDEREDTAG_INTERVAL
485 #define DA_ORDEREDTAG_INTERVAL 4
488 static struct periph_driver dadriver =
491 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
494 DATA_SET(periphdriver_set, dadriver);
496 /* For 2.2-stable support */
501 static struct dev_ops da_ops = {
502 { "da", DA_CDEV_MAJOR, D_DISK },
506 .d_write = physwrite,
508 .d_strategy = dastrategy,
512 static SLIST_HEAD(,da_softc) softc_list;
513 static struct extend_array *daperiphs;
516 daopen(struct dev_open_args *ap)
518 cdev_t dev = ap->a_head.a_dev;
519 struct cam_periph *periph;
520 struct da_softc *softc;
521 struct disklabel *label;
528 periph = cam_extend_get(daperiphs, unit);
532 softc = (struct da_softc *)periph->softc;
534 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
535 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev),
538 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
539 return (error); /* error code from tsleep */
542 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
544 softc->flags |= DA_FLAG_OPEN;
547 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
548 /* Invalidate our pack information. */
549 disk_invalidate(&softc->disk);
550 softc->flags &= ~DA_FLAG_PACK_INVALID;
554 /* Do a read capacity */
556 struct scsi_read_capacity_data *rcap;
559 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO);
561 ccb = cam_periph_getccb(periph, /*priority*/1);
562 scsi_read_capacity(&ccb->csio,
569 ccb->ccb_h.ccb_bio = NULL;
571 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
572 /*sense_flags*/SF_RETRY_UA |
574 &softc->device_stats);
576 xpt_release_ccb(ccb);
579 dasetgeom(periph, rcap);
586 struct ccb_getdev cgd;
588 /* Build label for whole disk. */
589 label = &softc->disk.d_label;
590 bzero(label, sizeof(*label));
591 label->d_type = DTYPE_SCSI;
594 * Grab the inquiry data to get the vendor and product names.
595 * Put them in the typename and packname for the label.
597 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
598 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
599 xpt_action((union ccb *)&cgd);
601 strncpy(label->d_typename, cgd.inq_data.vendor,
602 min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
603 strncpy(label->d_packname, cgd.inq_data.product,
604 min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
606 label->d_secsize = softc->params.secsize;
607 label->d_nsectors = softc->params.secs_per_track;
608 label->d_ntracks = softc->params.heads;
609 label->d_ncylinders = softc->params.cylinders;
610 label->d_secpercyl = softc->params.heads
611 * softc->params.secs_per_track;
612 label->d_secperunit = softc->params.sectors;
614 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
615 (softc->quirks & DA_Q_NO_PREVENT) == 0)
616 daprevent(periph, PR_PREVENT);
619 * Check to see whether or not the blocksize is set yet.
620 * If it isn't, set it and then clear the blocksize
621 * unavailable flag for the device statistics.
623 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){
624 softc->device_stats.block_size = softc->params.secsize;
625 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
630 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
631 (softc->quirks & DA_Q_NO_PREVENT) == 0)
632 daprevent(periph, PR_ALLOW);
633 softc->flags &= ~DA_FLAG_OPEN;
634 cam_periph_release(periph);
636 cam_periph_unlock(periph);
641 daclose(struct dev_close_args *ap)
643 cdev_t dev = ap->a_head.a_dev;
644 struct cam_periph *periph;
645 struct da_softc *softc;
650 periph = cam_extend_get(daperiphs, unit);
654 softc = (struct da_softc *)periph->softc;
656 if ((error = cam_periph_lock(periph, 0)) != 0) {
657 return (error); /* error code from tsleep */
660 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
663 ccb = cam_periph_getccb(periph, /*priority*/1);
665 scsi_synchronize_cache(&ccb->csio,
669 /*begin_lba*/0,/* Cover the whole disk */
674 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
675 /*sense_flags*/SF_RETRY_UA,
676 &softc->device_stats);
678 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
679 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
680 CAM_SCSI_STATUS_ERROR) {
682 int sense_key, error_code;
684 scsi_extract_sense(&ccb->csio.sense_data,
688 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
689 scsi_sense_print(&ccb->csio);
691 xpt_print_path(periph->path);
692 printf("Synchronize cache failed, status "
693 "== 0x%x, scsi status == 0x%x\n",
694 ccb->csio.ccb_h.status,
695 ccb->csio.scsi_status);
699 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
700 cam_release_devq(ccb->ccb_h.path,
706 xpt_release_ccb(ccb);
710 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
711 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
712 daprevent(periph, PR_ALLOW);
714 * If we've got removeable media, mark the blocksize as
715 * unavailable, since it could change when new media is
718 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
721 softc->flags &= ~DA_FLAG_OPEN;
722 cam_periph_unlock(periph);
723 cam_periph_release(periph);
728 * Actually translate the requested transfer into one the physical driver
729 * can understand. The transfer is described by a buf and will include
730 * only one physical transfer.
733 dastrategy(struct dev_strategy_args *ap)
735 cdev_t dev = ap->a_head.a_dev;
736 struct bio *bio = ap->a_bio;
737 struct buf *bp = bio->bio_buf;
738 struct cam_periph *periph;
739 struct da_softc *softc;
745 periph = cam_extend_get(daperiphs, unit);
746 if (periph == NULL) {
750 softc = (struct da_softc *)periph->softc;
753 * check it's not too big a transfer for our adapter
755 scsi_minphys(bp, &sd_switch);
759 * Mask interrupts so that the pack cannot be invalidated until
760 * after we are in the queue. Otherwise, we might not properly
761 * clean up one of the buffers.
766 * If the device has been made invalid, error out
768 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
775 * Place it in the queue of disk activities for this disk
777 bioqdisksort(&softc->bio_queue, bio);
782 * Schedule ourselves for performing the work.
784 xpt_schedule(periph, /* XXX priority */1);
788 bp->b_flags |= B_ERROR;
791 * Correctly set the buf to indicate a completed xfer
793 bp->b_resid = bp->b_bcount;
798 /* For 2.2-stable support */
804 daioctl(struct dev_ioctl_args *ap)
806 cdev_t dev = ap->a_head.a_dev;
807 struct cam_periph *periph;
808 struct da_softc *softc;
813 periph = cam_extend_get(daperiphs, unit);
817 softc = (struct da_softc *)periph->softc;
819 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n"));
821 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
822 return (error); /* error code from tsleep */
825 error = cam_periph_ioctl(periph, ap->a_cmd, ap->a_data, daerror);
827 cam_periph_unlock(periph);
833 dadump(struct dev_dump_args *ap)
835 cdev_t dev = ap->a_head.a_dev;
836 struct cam_periph *periph;
837 struct da_softc *softc;
841 struct ccb_scsiio csio;
842 int dumppages = MAXDUMPPGS;
845 /* toss any characters present prior to dump */
846 while (cncheckc() != -1)
850 periph = cam_extend_get(daperiphs, unit);
851 if (periph == NULL) {
854 softc = (struct da_softc *)periph->softc;
856 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
859 addr = 0; /* starting address */
860 blkcnt = howmany(PAGE_SIZE, ap->a_secsize);
862 while (ap->a_count > 0) {
865 if ((ap->a_count / blkcnt) < dumppages)
866 dumppages = ap->a_count / blkcnt;
868 for (i = 0; i < dumppages; ++i) {
869 vm_paddr_t a = addr + (i * PAGE_SIZE);
870 if (is_physical_memory(a))
871 va = pmap_kenter_temporary(trunc_page(a), i);
873 va = pmap_kenter_temporary(trunc_page(0), i);
876 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
877 csio.ccb_h.ccb_state = DA_CCB_DUMP;
878 scsi_read_write(&csio,
884 /*minimum_cmd_size*/ softc->minimum_cmd_size,
887 /*data_ptr*/(u_int8_t *) va,
888 /*dxfer_len*/blkcnt * ap->a_secsize * dumppages,
889 /*sense_len*/SSD_FULL_SIZE,
890 DA_DEFAULT_TIMEOUT * 1000);
891 xpt_polled_action((union ccb *)&csio);
893 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
894 printf("Aborting dump due to I/O error.\n");
895 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
896 CAM_SCSI_STATUS_ERROR)
897 scsi_sense_print(&csio);
899 printf("status == 0x%x, scsi status == 0x%x\n",
900 csio.ccb_h.status, csio.scsi_status);
904 if (dumpstatus(addr, (off_t)ap->a_count * softc->params.secsize) < 0)
907 /* update block count */
908 ap->a_count -= blkcnt * dumppages;
909 ap->a_blkno += blkcnt * dumppages;
910 addr += PAGE_SIZE * dumppages;
914 * Sync the disk cache contents to the physical media.
916 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
918 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
919 csio.ccb_h.ccb_state = DA_CCB_DUMP;
920 scsi_synchronize_cache(&csio,
924 /*begin_lba*/0,/* Cover the whole disk */
928 xpt_polled_action((union ccb *)&csio);
930 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
931 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
932 CAM_SCSI_STATUS_ERROR) {
934 int sense_key, error_code;
936 scsi_extract_sense(&csio.sense_data,
940 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
941 scsi_sense_print(&csio);
943 xpt_print_path(periph->path);
944 printf("Synchronize cache failed, status "
945 "== 0x%x, scsi status == 0x%x\n",
946 csio.ccb_h.status, csio.scsi_status);
957 struct cam_path *path;
960 * Create our extend array for storing the devices we attach to.
962 daperiphs = cam_extend_new();
963 SLIST_INIT(&softc_list);
964 if (daperiphs == NULL) {
965 printf("da: Failed to alloc extend array!\n");
969 callout_init(&dasendorderedtag_ch);
972 * Install a global async callback. This callback will
973 * receive async callbacks like "new device found".
975 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
976 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
978 if (status == CAM_REQ_CMP) {
979 struct ccb_setasync csa;
981 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
982 csa.ccb_h.func_code = XPT_SASYNC_CB;
983 csa.event_enable = AC_FOUND_DEVICE;
984 csa.callback = daasync;
985 csa.callback_arg = NULL;
986 xpt_action((union ccb *)&csa);
987 status = csa.ccb_h.status;
991 if (status != CAM_REQ_CMP) {
992 printf("da: Failed to attach master async callback "
993 "due to status 0x%x!\n", status);
997 * Schedule a periodic event to occasionally send an
998 * ordered tag to a device.
1000 callout_reset(&dasendorderedtag_ch,
1001 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
1002 dasendorderedtag, NULL);
1004 /* Register our shutdown event handler */
1005 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1006 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1007 printf("dainit: shutdown event registration failed!\n");
1012 daoninvalidate(struct cam_periph *periph)
1014 struct da_softc *softc;
1017 struct ccb_setasync csa;
1019 softc = (struct da_softc *)periph->softc;
1022 * De-register any async callbacks.
1024 xpt_setup_ccb(&csa.ccb_h, periph->path,
1026 csa.ccb_h.func_code = XPT_SASYNC_CB;
1027 csa.event_enable = 0;
1028 csa.callback = daasync;
1029 csa.callback_arg = periph;
1030 xpt_action((union ccb *)&csa);
1032 softc->flags |= DA_FLAG_PACK_INVALID;
1035 * Use a critical section to keep the buffer queue from being
1036 * modified while we traverse it.
1041 * Return all queued I/O with ENXIO.
1042 * XXX Handle any transactions queued to the card
1043 * with XPT_ABORT_CCB.
1045 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){
1046 bioq_remove(&softc->bio_queue, q_bio);
1047 q_bp = q_bio->bio_buf;
1048 q_bp->b_resid = q_bp->b_bcount;
1049 q_bp->b_error = ENXIO;
1050 q_bp->b_flags |= B_ERROR;
1055 SLIST_REMOVE(&softc_list, softc, da_softc, links);
1057 xpt_print_path(periph->path);
1058 printf("lost device\n");
1062 dacleanup(struct cam_periph *periph)
1064 struct da_softc *softc;
1066 softc = (struct da_softc *)periph->softc;
1068 devstat_remove_entry(&softc->device_stats);
1069 cam_extend_release(daperiphs, periph->unit_number);
1070 xpt_print_path(periph->path);
1071 printf("removing device entry\n");
1073 * If we can't free the sysctl tree, oh well...
1075 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1076 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1077 xpt_print_path(periph->path);
1078 printf("can't remove sysctl context\n");
1080 if (softc->disk.d_rawdev) {
1081 disk_destroy(&softc->disk);
1083 kfree(softc, M_DEVBUF);
1087 daasync(void *callback_arg, u_int32_t code,
1088 struct cam_path *path, void *arg)
1090 struct cam_periph *periph;
1092 periph = (struct cam_periph *)callback_arg;
1094 case AC_FOUND_DEVICE:
1096 struct ccb_getdev *cgd;
1099 cgd = (struct ccb_getdev *)arg;
1101 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1102 && SID_TYPE(&cgd->inq_data) != T_RBC
1103 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1107 * Allocate a peripheral instance for
1108 * this device and start the probe
1111 status = cam_periph_alloc(daregister, daoninvalidate,
1113 "da", CAM_PERIPH_BIO,
1114 cgd->ccb_h.path, daasync,
1115 AC_FOUND_DEVICE, cgd);
1117 if (status != CAM_REQ_CMP
1118 && status != CAM_REQ_INPROG)
1119 printf("daasync: Unable to attach to new device "
1120 "due to status 0x%x\n", status);
1126 struct da_softc *softc;
1127 struct ccb_hdr *ccbh;
1129 softc = (struct da_softc *)periph->softc;
1132 * Don't fail on the expected unit attention
1135 softc->flags |= DA_FLAG_RETRY_UA;
1136 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
1137 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
1138 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1143 cam_periph_async(periph, code, path, arg);
1149 dasysctlinit(void *context, int pending)
1151 struct cam_periph *periph;
1152 struct da_softc *softc;
1153 char tmpstr[80], tmpstr2[80];
1155 periph = (struct cam_periph *)context;
1156 softc = (struct da_softc *)periph->softc;
1158 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1159 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1161 sysctl_ctx_init(&softc->sysctl_ctx);
1162 softc->flags |= DA_FLAG_SCTX_INIT;
1163 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1164 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1165 CTLFLAG_RD, 0, tmpstr);
1166 if (softc->sysctl_tree == NULL) {
1167 printf("dasysctlinit: unable to allocate sysctl tree\n");
1172 * Now register the sysctl handler, so the user can the value on
1175 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
1176 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1177 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1178 "Minimum CDB size");
1182 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1186 value = *(int *)arg1;
1188 error = sysctl_handle_int(oidp, &value, 0, req);
1191 || (req->newptr == NULL))
1195 * Acceptable values here are 6, 10 or 12. It's possible we may
1196 * support a 16 byte minimum command size in the future, since
1197 * there are now READ(16) and WRITE(16) commands defined in the
1202 else if ((value > 6)
1205 else if (value > 10)
1208 *(int *)arg1 = value;
1214 daregister(struct cam_periph *periph, void *arg)
1216 struct da_softc *softc;
1217 struct ccb_setasync csa;
1218 struct ccb_pathinq cpi;
1219 struct ccb_getdev *cgd;
1223 cgd = (struct ccb_getdev *)arg;
1224 if (periph == NULL) {
1225 printf("daregister: periph was NULL!!\n");
1226 return(CAM_REQ_CMP_ERR);
1230 printf("daregister: no getdev CCB, can't register device\n");
1231 return(CAM_REQ_CMP_ERR);
1234 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO);
1235 LIST_INIT(&softc->pending_ccbs);
1236 softc->state = DA_STATE_PROBE;
1237 bioq_init(&softc->bio_queue);
1238 if (SID_IS_REMOVABLE(&cgd->inq_data))
1239 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1240 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1241 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1243 periph->softc = softc;
1245 cam_extend_set(daperiphs, periph->unit_number, periph);
1248 * See if this device has any quirks.
1250 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1251 (caddr_t)da_quirk_table,
1252 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1253 sizeof(*da_quirk_table), scsi_inquiry_match);
1256 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1258 softc->quirks = DA_Q_NONE;
1260 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1262 /* Check if the SIM does not want 6 byte commands */
1263 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
1264 cpi.ccb_h.func_code = XPT_PATH_INQ;
1265 xpt_action((union ccb *)&cpi);
1266 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1267 softc->quirks |= DA_Q_NO_6_BYTE;
1270 * RBC devices don't have to support READ(6), only READ(10).
1272 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1273 softc->minimum_cmd_size = 10;
1275 softc->minimum_cmd_size = 6;
1278 * Load the user's default, if any.
1280 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1281 periph->unit_number);
1282 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1285 * 6, 10 and 12 are the currently permissible values.
1287 if (softc->minimum_cmd_size < 6)
1288 softc->minimum_cmd_size = 6;
1289 else if ((softc->minimum_cmd_size > 6)
1290 && (softc->minimum_cmd_size <= 10))
1291 softc->minimum_cmd_size = 10;
1292 else if (softc->minimum_cmd_size > 12)
1293 softc->minimum_cmd_size = 12;
1296 * Block our timeout handler while we
1297 * add this softc to the dev list.
1300 SLIST_INSERT_HEAD(&softc_list, softc, links);
1304 * The DA driver supports a blocksize, but
1305 * we don't know the blocksize until we do
1306 * a read capacity. So, set a flag to
1307 * indicate that the blocksize is
1308 * unavailable right now. We'll clear the
1309 * flag as soon as we've done a read capacity.
1311 devstat_add_entry(&softc->device_stats, "da",
1312 periph->unit_number, 0,
1313 DEVSTAT_BS_UNAVAILABLE,
1314 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
1315 DEVSTAT_PRIORITY_DISK);
1318 * Register this media as a disk
1320 disk_create(periph->unit_number, &softc->disk, 0, &da_ops);
1323 * Add async callbacks for bus reset and
1324 * bus device reset calls. I don't bother
1325 * checking if this fails as, in most cases,
1326 * the system will function just fine without
1327 * them and the only alternative would be to
1328 * not attach the device on failure.
1330 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
1331 csa.ccb_h.func_code = XPT_SASYNC_CB;
1332 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
1333 csa.callback = daasync;
1334 csa.callback_arg = periph;
1335 xpt_action((union ccb *)&csa);
1337 * Lock this peripheral until we are setup.
1338 * This first call can't block
1340 cam_periph_lock(periph, 0);
1341 xpt_schedule(periph, /*priority*/5);
1343 return(CAM_REQ_CMP);
1347 dastart(struct cam_periph *periph, union ccb *start_ccb)
1349 struct da_softc *softc;
1351 softc = (struct da_softc *)periph->softc;
1354 switch (softc->state) {
1355 case DA_STATE_NORMAL:
1357 /* Pull a buffer from the queue and get going on it */
1362 * See if there is a buf with work for us to do..
1365 bio = bioq_first(&softc->bio_queue);
1366 if (periph->immediate_priority <= periph->pinfo.priority) {
1367 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1368 ("queuing for immediate ccb\n"));
1369 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1370 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1372 periph->immediate_priority = CAM_PRIORITY_NONE;
1374 wakeup(&periph->ccb_list);
1375 } else if (bio == NULL) {
1377 xpt_release_ccb(start_ccb);
1381 bioq_remove(&softc->bio_queue, bio);
1384 devstat_start_transaction(&softc->device_stats);
1386 if ((bp->b_flags & B_ORDERED) != 0
1387 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1388 softc->flags &= ~DA_FLAG_NEED_OTAG;
1389 softc->ordered_tag_count++;
1390 tag_code = MSG_ORDERED_Q_TAG;
1392 tag_code = MSG_SIMPLE_Q_TAG;
1395 KKASSERT(bio->bio_offset % softc->params.secsize == 0);
1397 scsi_read_write(&start_ccb->csio,
1398 /*retries*/da_retry_count,
1401 (bp->b_cmd == BUF_CMD_READ),
1403 softc->minimum_cmd_size,
1404 bio->bio_offset / softc->params.secsize,
1405 bp->b_bcount / softc->params.secsize,
1408 /*sense_len*/SSD_FULL_SIZE,
1409 da_default_timeout * 1000);
1410 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1413 * Block out any asyncronous callbacks
1414 * while we touch the pending ccb list.
1416 LIST_INSERT_HEAD(&softc->pending_ccbs,
1417 &start_ccb->ccb_h, periph_links.le);
1419 /* We expect a unit attention from this device */
1420 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1421 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1422 softc->flags &= ~DA_FLAG_RETRY_UA;
1425 start_ccb->ccb_h.ccb_bio = bio;
1426 bio = bioq_first(&softc->bio_queue);
1429 xpt_action(start_ccb);
1433 /* Have more work to do, so ensure we stay scheduled */
1434 xpt_schedule(periph, /* XXX priority */1);
1438 case DA_STATE_PROBE:
1440 struct ccb_scsiio *csio;
1441 struct scsi_read_capacity_data *rcap;
1443 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO);
1444 csio = &start_ccb->csio;
1445 scsi_read_capacity(csio,
1452 start_ccb->ccb_h.ccb_bio = NULL;
1453 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1454 xpt_action(start_ccb);
1461 cmd6workaround(union ccb *ccb)
1463 struct scsi_rw_6 cmd6;
1464 struct scsi_rw_10 *cmd10;
1465 struct da_softc *softc;
1469 cdb = ccb->csio.cdb_io.cdb_bytes;
1471 /* Translation only possible if CDB is an array and cmd is R/W6 */
1472 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1473 (*cdb != READ_6 && *cdb != WRITE_6))
1476 xpt_print_path(ccb->ccb_h.path);
1477 printf("READ(6)/WRITE(6) not supported, "
1478 "increasing minimum_cmd_size to 10.\n");
1479 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1480 softc->minimum_cmd_size = 10;
1482 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1483 cmd10 = (struct scsi_rw_10 *)cdb;
1484 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1486 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1487 cmd10->reserved = 0;
1488 scsi_ulto2b(cmd6.length, cmd10->length);
1489 cmd10->control = cmd6.control;
1490 ccb->csio.cdb_len = sizeof(*cmd10);
1492 /* Requeue request, unfreezing queue if necessary */
1493 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1494 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1497 cam_release_devq(ccb->ccb_h.path,
1501 /*getcount_only*/0);
1507 dadone(struct cam_periph *periph, union ccb *done_ccb)
1509 struct da_softc *softc;
1510 struct ccb_scsiio *csio;
1512 softc = (struct da_softc *)periph->softc;
1513 csio = &done_ccb->csio;
1514 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1515 case DA_CCB_BUFFER_IO:
1520 bio = (struct bio *)done_ccb->ccb_h.ccb_bio;
1522 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1526 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1531 /* Retry selection timeouts */
1532 sf |= SF_RETRY_SELTO;
1534 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) {
1536 * A retry was scheuled, so
1547 if (error == ENXIO) {
1549 * Catastrophic error. Mark our pack as
1552 /* XXX See if this is really a media
1555 xpt_print_path(periph->path);
1556 printf("Invalidating pack\n");
1557 softc->flags |= DA_FLAG_PACK_INVALID;
1561 * return all queued I/O with EIO, so that
1562 * the client can retry these I/Os in the
1563 * proper order should it attempt to recover.
1565 while ((q_bio = bioq_first(&softc->bio_queue))
1567 bioq_remove(&softc->bio_queue, q_bio);
1568 q_bp = q_bio->bio_buf;
1569 q_bp->b_resid = q_bp->b_bcount;
1570 q_bp->b_error = EIO;
1571 q_bp->b_flags |= B_ERROR;
1575 bp->b_error = error;
1576 bp->b_resid = bp->b_bcount;
1577 bp->b_flags |= B_ERROR;
1579 bp->b_resid = csio->resid;
1581 if (bp->b_resid != 0)
1582 bp->b_flags |= B_ERROR;
1584 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1585 cam_release_devq(done_ccb->ccb_h.path,
1589 /*getcount_only*/0);
1591 bp->b_resid = csio->resid;
1592 if (csio->resid > 0)
1593 bp->b_flags |= B_ERROR;
1597 * Block out any asyncronous callbacks
1598 * while we touch the pending ccb list.
1601 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1604 if (softc->device_stats.busy_count == 0)
1605 softc->flags |= DA_FLAG_WENT_IDLE;
1607 devstat_end_transaction_buf(&softc->device_stats, bp);
1613 struct scsi_read_capacity_data *rdcap;
1614 char announce_buf[80];
1616 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1618 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1619 struct disk_params *dp;
1621 dasetgeom(periph, rdcap);
1622 dp = &softc->params;
1623 snprintf(announce_buf, sizeof(announce_buf),
1624 "%luMB (%u %u byte sectors: %dH %dS/T %dC)",
1625 (unsigned long) (((u_int64_t)dp->secsize *
1626 dp->sectors) / (1024*1024)), dp->sectors,
1627 dp->secsize, dp->heads, dp->secs_per_track,
1632 announce_buf[0] = '\0';
1635 * Retry any UNIT ATTENTION type errors. They
1636 * are expected at boot.
1638 error = daerror(done_ccb, 0, SF_RETRY_UA |
1639 SF_RETRY_SELTO | SF_NO_PRINT);
1640 if (error == ERESTART) {
1642 * A retry was scheuled, so
1646 } else if (error != 0) {
1647 struct scsi_sense_data *sense;
1649 int sense_key, error_code;
1652 struct ccb_getdev cgd;
1654 /* Don't wedge this device's queue */
1655 cam_release_devq(done_ccb->ccb_h.path,
1659 /*getcount_only*/0);
1661 status = done_ccb->ccb_h.status;
1663 xpt_setup_ccb(&cgd.ccb_h,
1664 done_ccb->ccb_h.path,
1666 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1667 xpt_action((union ccb *)&cgd);
1669 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1670 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1671 || ((status & CAM_AUTOSNS_VALID) == 0))
1677 sense = &csio->sense_data;
1678 scsi_extract_sense(sense, &error_code,
1683 * Attach to anything that claims to be a
1684 * direct access or optical disk device,
1685 * as long as it doesn't return a "Logical
1686 * unit not supported" (0x25) error.
1688 if ((have_sense) && (asc != 0x25)
1689 && (error_code == SSD_CURRENT_ERROR))
1690 snprintf(announce_buf,
1691 sizeof(announce_buf),
1692 "Attempt to query device "
1693 "size failed: %s, %s",
1694 scsi_sense_key_text[sense_key],
1695 scsi_sense_desc(asc,ascq,
1702 xpt_print_path(periph->path);
1703 printf("got CAM status %#x\n",
1704 done_ccb->ccb_h.status);
1707 xpt_print_path(periph->path);
1708 printf("fatal error, failed"
1709 " to attach to device\n");
1712 * Free up resources.
1714 cam_periph_invalidate(periph);
1718 kfree(rdcap, M_TEMP);
1719 if (announce_buf[0] != '\0') {
1720 xpt_announce_periph(periph, announce_buf);
1722 * Create our sysctl variables, now that we know
1723 * we have successfully attached.
1725 taskqueue_enqueue(taskqueue_thread[mycpuid],
1726 &softc->sysctl_task);
1728 softc->state = DA_STATE_NORMAL;
1730 * Since our peripheral may be invalidated by an error
1731 * above or an external event, we must release our CCB
1732 * before releasing the probe lock on the peripheral.
1733 * The peripheral will only go away once the last lock
1734 * is removed, and we need it around for the CCB release
1737 xpt_release_ccb(done_ccb);
1738 cam_periph_unlock(periph);
1741 case DA_CCB_WAITING:
1743 /* Caller will release the CCB */
1744 wakeup(&done_ccb->ccb_h.cbfcnp);
1748 /* No-op. We're polling */
1753 xpt_release_ccb(done_ccb);
1757 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1759 struct da_softc *softc;
1760 struct cam_periph *periph;
1763 periph = xpt_path_periph(ccb->ccb_h.path);
1764 softc = (struct da_softc *)periph->softc;
1767 * Automatically detect devices that do not support
1768 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1771 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1772 error = cmd6workaround(ccb);
1773 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1774 CAM_SCSI_STATUS_ERROR)
1775 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1776 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1777 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1778 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1779 int sense_key, error_code, asc, ascq;
1781 scsi_extract_sense(&ccb->csio.sense_data,
1782 &error_code, &sense_key, &asc, &ascq);
1783 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1784 error = cmd6workaround(ccb);
1786 if (error == ERESTART)
1791 * Until we have a better way of doing pack validation,
1792 * don't treat UAs as errors.
1794 sense_flags |= SF_RETRY_UA;
1795 return(cam_periph_error(ccb, cam_flags, sense_flags,
1796 &softc->saved_ccb));
1800 daprevent(struct cam_periph *periph, int action)
1802 struct da_softc *softc;
1806 softc = (struct da_softc *)periph->softc;
1808 if (((action == PR_ALLOW)
1809 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1810 || ((action == PR_PREVENT)
1811 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1815 ccb = cam_periph_getccb(periph, /*priority*/1);
1817 scsi_prevent(&ccb->csio,
1825 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
1826 /*sense_flags*/0, &softc->device_stats);
1829 if (action == PR_ALLOW)
1830 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1832 softc->flags |= DA_FLAG_PACK_LOCKED;
1835 xpt_release_ccb(ccb);
1839 dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap)
1841 struct ccb_calc_geometry ccg;
1842 struct da_softc *softc;
1843 struct disk_params *dp;
1845 softc = (struct da_softc *)periph->softc;
1847 dp = &softc->params;
1848 dp->secsize = scsi_4btoul(rdcap->length);
1849 dp->sectors = scsi_4btoul(rdcap->addr) + 1;
1851 * Have the controller provide us with a geometry
1852 * for this disk. The only time the geometry
1853 * matters is when we boot and the controller
1854 * is the only one knowledgeable enough to come
1855 * up with something that will make this a bootable
1858 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1859 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1860 ccg.block_size = dp->secsize;
1861 ccg.volume_size = dp->sectors;
1863 ccg.secs_per_track = 0;
1865 xpt_action((union ccb*)&ccg);
1866 dp->heads = ccg.heads;
1867 dp->secs_per_track = ccg.secs_per_track;
1868 dp->cylinders = ccg.cylinders;
1872 dasendorderedtag(void *arg)
1874 struct da_softc *softc;
1876 for (softc = SLIST_FIRST(&softc_list);
1878 softc = SLIST_NEXT(softc, links)) {
1880 if ((softc->ordered_tag_count == 0)
1881 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
1882 softc->flags |= DA_FLAG_NEED_OTAG;
1884 if (softc->device_stats.busy_count > 0)
1885 softc->flags &= ~DA_FLAG_WENT_IDLE;
1887 softc->ordered_tag_count = 0;
1890 /* Queue us up again */
1891 callout_reset(&dasendorderedtag_ch,
1892 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
1893 dasendorderedtag, NULL);
1897 * Step through all DA peripheral drivers, and if the device is still open,
1898 * sync the disk cache to physical media.
1901 dashutdown(void * arg, int howto)
1903 struct cam_periph *periph;
1904 struct da_softc *softc;
1906 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL;
1907 periph = TAILQ_NEXT(periph, unit_links)) {
1909 softc = (struct da_softc *)periph->softc;
1912 * We only sync the cache if the drive is still open, and
1913 * if the drive is capable of it..
1915 if (((softc->flags & DA_FLAG_OPEN) == 0)
1916 || (softc->quirks & DA_Q_NO_SYNC_CACHE))
1919 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
1921 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
1922 scsi_synchronize_cache(&ccb.csio,
1926 /*begin_lba*/0, /* whole disk */
1931 xpt_polled_action(&ccb);
1933 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1934 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
1935 CAM_SCSI_STATUS_ERROR)
1936 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
1937 int error_code, sense_key, asc, ascq;
1939 scsi_extract_sense(&ccb.csio.sense_data,
1940 &error_code, &sense_key,
1943 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1944 scsi_sense_print(&ccb.csio);
1946 xpt_print_path(periph->path);
1947 printf("Synchronize cache failed, status "
1948 "== 0x%x, scsi status == 0x%x\n",
1949 ccb.ccb_h.status, ccb.csio.scsi_status);
1953 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1954 cam_release_devq(ccb.ccb_h.path,
1958 /*getcount_only*/0);
1963 #else /* !_KERNEL */
1966 * XXX This is only left out of the kernel build to silence warnings. If,
1967 * for some reason this function is used in the kernel, the ifdefs should
1968 * be moved so it is included both in the kernel and userland.
1971 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
1972 void (*cbfcnp)(struct cam_periph *, union ccb *),
1973 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
1974 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
1977 struct scsi_format_unit *scsi_cmd;
1979 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
1980 scsi_cmd->opcode = FORMAT_UNIT;
1981 scsi_cmd->byte2 = byte2;
1982 scsi_ulto2b(ileave, scsi_cmd->interleave);
1987 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
1996 #endif /* _KERNEL */