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freebsd-dev/sys/cam/scsi/scsi_da.c
Kenneth D. Merry 260cc4834d Add support to CAM for devices with more than 2^32 blocks. (2TB if you're 
using 512 byte blocks).

cam_ccb.h:	Bump up volume_size and cylinders in ccb_calc_geometry to
		64 bits and 32 bits respectively, so we can hold larger
		device sizes.  cylinders would overflow at about 500GB.
		Bump CAM_VERSION for this change.  Note that this will
		require a recompile of all applications that talk to the
		pass(4) driver.

scsi_all.c:	Add descriptions for READ/WRITE(16), update READ/WRITE(12)
		descriptions, add descriptions for SERVICE ACTION IN/OUT.
		Add a new function, scsi_read_capacity_16(), that issues
		the read capacity service action.  (Necessary for arrays
		larger than 2^32 sectors.)  Update scsi_read_write() to use
		a 64 bit LBA and issue READ(16) or WRITE(16) if necessary.
		NOTE the API change.  This should be largely transparnet
		to most userland applications at compile time, but will
		break binary compatibility.  The CAM_VERSION bump, above,
		also serves the purpose of forcing a recompile for any
		applications that talk to CAM.

scsi_all.h:	Add 16 byte READ/WRITE structures, structures for 16 byte
		READ CAPACITY/SERVICE ACTION IN.  Add scsi_u64to8b() and
		scsi_8btou64.

scsi_da.c:	The da(4) driver probe now has two stages for devices
		larger than 2TB.  If a standard READ CAPACITY(10) returns
		0xffffffff, we issue the 16 byte version of read capacity
		to determine the true array capacity.  We also do the same
		thing in daopen() -- use the 16 byte read capacity if the
		device is large enough.

		The sysctl/loader code has also been updated to accept
		16 bytes as a minimum command size.
2003-04-30 00:35:22 +00:00

2026 lines
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/*
* Implementation of SCSI Direct Access Peripheral driver for CAM.
*
* Copyright (c) 1997 Justin T. Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifdef _KERNEL
#include "opt_hw_wdog.h"
#endif /* _KERNEL */
#include <sys/param.h>
#ifdef _KERNEL
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bio.h>
#include <sys/sysctl.h>
#endif /* _KERNEL */
#include <sys/devicestat.h>
#include <sys/conf.h>
#include <sys/eventhandler.h>
#include <sys/malloc.h>
#include <sys/cons.h>
#include <machine/md_var.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <geom/geom_disk.h>
#ifndef _KERNEL
#include <stdio.h>
#include <string.h>
#endif /* _KERNEL */
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_periph.h>
#include <cam/cam_xpt_periph.h>
#include <cam/scsi/scsi_message.h>
#ifndef _KERNEL
#include <cam/scsi/scsi_da.h>
#endif /* !_KERNEL */
#ifdef _KERNEL
typedef enum {
DA_STATE_PROBE,
DA_STATE_PROBE2,
DA_STATE_NORMAL
} da_state;
typedef enum {
DA_FLAG_PACK_INVALID = 0x001,
DA_FLAG_NEW_PACK = 0x002,
DA_FLAG_PACK_LOCKED = 0x004,
DA_FLAG_PACK_REMOVABLE = 0x008,
DA_FLAG_TAGGED_QUEUING = 0x010,
DA_FLAG_NEED_OTAG = 0x020,
DA_FLAG_WENT_IDLE = 0x040,
DA_FLAG_RETRY_UA = 0x080,
DA_FLAG_OPEN = 0x100
} da_flags;
typedef enum {
DA_Q_NONE = 0x00,
DA_Q_NO_SYNC_CACHE = 0x01,
DA_Q_NO_6_BYTE = 0x02
} da_quirks;
typedef enum {
DA_CCB_PROBE = 0x01,
DA_CCB_PROBE2 = 0x02,
DA_CCB_BUFFER_IO = 0x03,
DA_CCB_WAITING = 0x04,
DA_CCB_DUMP = 0x05,
DA_CCB_TYPE_MASK = 0x0F,
DA_CCB_RETRY_UA = 0x10
} da_ccb_state;
/* Offsets into our private area for storing information */
#define ccb_state ppriv_field0
#define ccb_bp ppriv_ptr1
struct disk_params {
u_int8_t heads;
u_int32_t cylinders;
u_int8_t secs_per_track;
u_int32_t secsize; /* Number of bytes/sector */
u_int64_t sectors; /* total number sectors */
};
struct da_softc {
struct bio_queue_head bio_queue;
SLIST_ENTRY(da_softc) links;
LIST_HEAD(, ccb_hdr) pending_ccbs;
da_state state;
da_flags flags;
da_quirks quirks;
int minimum_cmd_size;
int ordered_tag_count;
int outstanding_cmds;
struct disk_params params;
struct disk disk;
union ccb saved_ccb;
struct sysctl_ctx_list sysctl_ctx;
struct sysctl_oid *sysctl_tree;
};
struct da_quirk_entry {
struct scsi_inquiry_pattern inq_pat;
da_quirks quirks;
};
static const char quantum[] = "QUANTUM";
static const char microp[] = "MICROP";
static struct da_quirk_entry da_quirk_table[] =
{
/*
* Logitec USB/Firewire LHD-P30FU
*/
{
/* USB part */
{T_DIRECT, SIP_MEDIA_FIXED, "HITACHI_", "DK23DA*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/* Firewire part */
{T_DIRECT, SIP_MEDIA_FIXED, "LSILogic", "SYM13FW*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Fujitsu M2513A MO drives.
* Tested devices: M2513A2 firmware versions 1200 & 1300.
* (dip switch selects whether T_DIRECT or T_OPTICAL device)
* Reported by: W.Scholten <whs@xs4all.nl>
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/* See above. */
{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/*
* This particular Fujitsu drive doesn't like the
* synchronize cache command.
* Reported by: Tom Jackson <toj@gorilla.net>
*/
{T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/*
* This drive doesn't like the synchronize cache command
* either. Reported by: Matthew Jacob <mjacob@feral.com>
* in NetBSD PR kern/6027, August 24, 1998.
*/
{T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/*
* This drive doesn't like the synchronize cache command
* either. Reported by: Hellmuth Michaelis (hm@kts.org)
* (PR 8882).
*/
{T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/*
* Doesn't like the synchronize cache command.
* Reported by: Blaz Zupan <blaz@gold.amis.net>
*/
{T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/*
* Doesn't like the synchronize cache command.
*/
{T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/*
* Doesn't like the synchronize cache command.
*/
{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
/*quirks*/ DA_Q_NO_SYNC_CACHE
},
{
/*
* Doesn't work correctly with 6 byte reads/writes.
* Returns illegal request, and points to byte 9 of the
* 6-byte CDB.
* Reported by: Adam McDougall <bsdx@spawnet.com>
*/
{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* See above.
*/
{T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
/* Below a list of quirks for USB devices supported by umass. */
{
/*
* This USB floppy drive uses the UFI command set. This
* command set is a derivative of the ATAPI command set and
* does not support READ_6 commands only READ_10. It also does
* not support sync cache (0x35).
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/* Another USB floppy */
{T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Sony Memory Stick adapter MSAC-US1 and
* Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01).
* Make all sony MS* products use this quirk.
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Sony Memory Stick adapter for the CLIE series
* of PalmOS PDA's
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70)
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Maxtor 3000LE USB Drive
*/
{T_DIRECT, SIP_MEDIA_FIXED, "MAXTOR*", "K040H2*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* LaCie USB drive, among others
*/
{T_DIRECT, SIP_MEDIA_FIXED, "Maxtor*", "D080H4*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
{T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "MCF3064AP", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Microtech USB CameraMate
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*",
"Compact Flash*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* The vendor, product and version strings coming from the
* controller are null terminated instead of being padded with
* spaces. The trailing wildcard character '*' is required.
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1)
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Olympus digital cameras (D-370)
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "D-*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Olympus digital cameras (E-100RS, E-10).
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* KingByte Pen Drives
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* FujiFilm Camera
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT",
"USB-DRIVEUNIT", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Nikon Coolpix E775/E995 Cameras
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "NIKON", "NIKON DSC E*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Nikon Coolpix E885 Camera
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Nikon", "Digital Camera", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* SimpleTech FlashLink UCF-100
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "OEI-USB", "CompactFlash", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Minolta Dimage 2330
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DIMAGE 2330*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Minolta Dimage E203
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* DIVA USB Mp3 Player.
* PR: kern/33638
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "DIVA USB", "Media Reader","*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Daisy Technology PhotoClip USB Camera
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Digital", "World DMC","*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Apacer HandyDrive
* PR: kern/43627
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Daisy Technology PhotoClip on Zoran chip
* PR: kern/43580
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* HP 315 Digital Camera
* PR: kern/41010
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "HP", "USB CAMERA", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Fujitsu-Siemens Memorybird pen drive
* PR: kern/34712
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Fujitsu", "Memorybird", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Sony USB Key-Storage
* PR: kern/46386
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
},
{
/*
* Lexar Media Jumpdrive
* PR: kern/47006
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "LEXAR", "DIGITAL FILM", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Pentax USB Optio 230 camera
* PR: kern/46369
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE,
"PENTAX", "DIGITAL_CAMERA", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Casio QV-R3 USB camera (uses Pentax chip as above)
* PR: kern/46545
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE,
"CASIO", "DIGITAL_CAMERA", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* M-Systems DiskOnKey USB flash key
* PR: kern/47793
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "M-Sys", "DiskOnKey", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* SanDisk ImageMate (I, II, ...) compact flash
* PR: kern/47877
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk", "ImageMate*", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* Feiya "slider" dual-slot flash reader. The vendor field
* is blank so this may match other devices.
* PR: kern/50020
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "", "USB CARD READER", "*"},
/*quirks*/ DA_Q_NO_6_BYTE
},
{
/*
* SmartDisk (Mitsumi) USB floppy drive
* PR: kern/50226
*/
{T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"},
/*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
}
};
static disk_strategy_t dastrategy;
static dumper_t dadump;
static periph_init_t dainit;
static void daasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg);
static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
static periph_ctor_t daregister;
static periph_dtor_t dacleanup;
static periph_start_t dastart;
static periph_oninv_t daoninvalidate;
static void dadone(struct cam_periph *periph,
union ccb *done_ccb);
static int daerror(union ccb *ccb, u_int32_t cam_flags,
u_int32_t sense_flags);
static void daprevent(struct cam_periph *periph, int action);
static int dagetcapacity(struct cam_periph *periph);
static void dasetgeom(struct cam_periph *periph, uint32_t block_len,
uint64_t maxsector);
static timeout_t dasendorderedtag;
static void dashutdown(void *arg, int howto);
#ifndef DA_DEFAULT_TIMEOUT
#define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
#endif
#ifndef DA_DEFAULT_RETRY
#define DA_DEFAULT_RETRY 4
#endif
static int da_retry_count = DA_DEFAULT_RETRY;
static int da_default_timeout = DA_DEFAULT_TIMEOUT;
SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
"CAM Direct Access Disk driver");
SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
&da_retry_count, 0, "Normal I/O retry count");
TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
&da_default_timeout, 0, "Normal I/O timeout (in seconds)");
TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
/*
* DA_ORDEREDTAG_INTERVAL determines how often, relative
* to the default timeout, we check to see whether an ordered
* tagged transaction is appropriate to prevent simple tag
* starvation. Since we'd like to ensure that there is at least
* 1/2 of the timeout length left for a starved transaction to
* complete after we've sent an ordered tag, we must poll at least
* four times in every timeout period. This takes care of the worst
* case where a starved transaction starts during an interval that
* meets the requirement "don't send an ordered tag" test so it takes
* us two intervals to determine that a tag must be sent.
*/
#ifndef DA_ORDEREDTAG_INTERVAL
#define DA_ORDEREDTAG_INTERVAL 4
#endif
static struct periph_driver dadriver =
{
dainit, "da",
TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
};
PERIPHDRIVER_DECLARE(da, dadriver);
static SLIST_HEAD(,da_softc) softc_list;
static int
daopen(struct disk *dp)
{
struct cam_periph *periph;
struct da_softc *softc;
int unit;
int error;
int s;
s = splsoftcam();
periph = (struct cam_periph *)dp->d_drv1;
unit = periph->unit_number;
if (periph == NULL) {
splx(s);
return (ENXIO);
}
softc = (struct da_softc *)periph->softc;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
unit));
if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0)
return (error); /* error code from tsleep */
if (cam_periph_acquire(periph) != CAM_REQ_CMP)
return(ENXIO);
softc->flags |= DA_FLAG_OPEN;
if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
/* Invalidate our pack information. */
softc->flags &= ~DA_FLAG_PACK_INVALID;
}
splx(s);
error = dagetcapacity(periph);
if (error == 0) {
softc->disk.d_sectorsize = softc->params.secsize;
softc->disk.d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
/* XXX: these are not actually "firmware" values, so they may be wrong */
softc->disk.d_fwsectors = softc->params.secs_per_track;
softc->disk.d_fwheads = softc->params.heads;
softc->disk.d_devstat->block_size = softc->params.secsize;
softc->disk.d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
}
if (error == 0) {
if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
daprevent(periph, PR_PREVENT);
} else {
softc->flags &= ~DA_FLAG_OPEN;
cam_periph_release(periph);
}
cam_periph_unlock(periph);
return (error);
}
static int
daclose(struct disk *dp)
{
struct cam_periph *periph;
struct da_softc *softc;
int error;
periph = (struct cam_periph *)dp->d_drv1;
if (periph == NULL)
return (ENXIO);
softc = (struct da_softc *)periph->softc;
if ((error = cam_periph_lock(periph, PRIBIO)) != 0) {
return (error); /* error code from tsleep */
}
if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
union ccb *ccb;
ccb = cam_periph_getccb(periph, /*priority*/1);
scsi_synchronize_cache(&ccb->csio,
/*retries*/1,
/*cbfcnp*/dadone,
MSG_SIMPLE_Q_TAG,
/*begin_lba*/0,/* Cover the whole disk */
/*lb_count*/0,
SSD_FULL_SIZE,
5 * 60 * 1000);
cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
/*sense_flags*/SF_RETRY_UA,
softc->disk.d_devstat);
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
CAM_SCSI_STATUS_ERROR) {
int asc, ascq;
int sense_key, error_code;
scsi_extract_sense(&ccb->csio.sense_data,
&error_code,
&sense_key,
&asc, &ascq);
if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
scsi_sense_print(&ccb->csio);
} else {
xpt_print_path(periph->path);
printf("Synchronize cache failed, status "
"== 0x%x, scsi status == 0x%x\n",
ccb->csio.ccb_h.status,
ccb->csio.scsi_status);
}
}
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
xpt_release_ccb(ccb);
}
if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
daprevent(periph, PR_ALLOW);
/*
* If we've got removeable media, mark the blocksize as
* unavailable, since it could change when new media is
* inserted.
*/
softc->disk.d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
}
softc->flags &= ~DA_FLAG_OPEN;
cam_periph_unlock(periph);
cam_periph_release(periph);
return (0);
}
/*
* Actually translate the requested transfer into one the physical driver
* can understand. The transfer is described by a buf and will include
* only one physical transfer.
*/
static void
dastrategy(struct bio *bp)
{
struct cam_periph *periph;
struct da_softc *softc;
int s;
periph = (struct cam_periph *)bp->bio_disk->d_drv1;
if (periph == NULL) {
biofinish(bp, NULL, ENXIO);
return;
}
softc = (struct da_softc *)periph->softc;
#if 0
/*
* check it's not too big a transfer for our adapter
*/
scsi_minphys(bp,&sd_switch);
#endif
/*
* Mask interrupts so that the pack cannot be invalidated until
* after we are in the queue. Otherwise, we might not properly
* clean up one of the buffers.
*/
s = splbio();
/*
* If the device has been made invalid, error out
*/
if ((softc->flags & DA_FLAG_PACK_INVALID)) {
splx(s);
biofinish(bp, NULL, ENXIO);
return;
}
/*
* Place it in the queue of disk activities for this disk
*/
bioq_disksort(&softc->bio_queue, bp);
splx(s);
/*
* Schedule ourselves for performing the work.
*/
xpt_schedule(periph, /* XXX priority */1);
return;
}
static int
dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
{
struct cam_periph *periph;
struct da_softc *softc;
u_int secsize;
struct ccb_scsiio csio;
struct disk *dp;
dp = arg;
periph = dp->d_drv1;
if (periph == NULL)
return (ENXIO);
softc = (struct da_softc *)periph->softc;
secsize = softc->params.secsize;
if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
return (ENXIO);
if (length > 0) {
xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
csio.ccb_h.ccb_state = DA_CCB_DUMP;
scsi_read_write(&csio,
/*retries*/1,
dadone,
MSG_ORDERED_Q_TAG,
/*read*/FALSE,
/*byte2*/0,
/*minimum_cmd_size*/ softc->minimum_cmd_size,
offset / secsize,
length / secsize,
/*data_ptr*/(u_int8_t *) virtual,
/*dxfer_len*/length,
/*sense_len*/SSD_FULL_SIZE,
DA_DEFAULT_TIMEOUT * 1000);
xpt_polled_action((union ccb *)&csio);
if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
printf("Aborting dump due to I/O error.\n");
if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
CAM_SCSI_STATUS_ERROR)
scsi_sense_print(&csio);
else
printf("status == 0x%x, scsi status == 0x%x\n",
csio.ccb_h.status, csio.scsi_status);
return(EIO);
}
return(0);
}
/*
* Sync the disk cache contents to the physical media.
*/
if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
csio.ccb_h.ccb_state = DA_CCB_DUMP;
scsi_synchronize_cache(&csio,
/*retries*/1,
/*cbfcnp*/dadone,
MSG_SIMPLE_Q_TAG,
/*begin_lba*/0,/* Cover the whole disk */
/*lb_count*/0,
SSD_FULL_SIZE,
5 * 60 * 1000);
xpt_polled_action((union ccb *)&csio);
if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
CAM_SCSI_STATUS_ERROR) {
int asc, ascq;
int sense_key, error_code;
scsi_extract_sense(&csio.sense_data,
&error_code,
&sense_key,
&asc, &ascq);
if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
scsi_sense_print(&csio);
} else {
xpt_print_path(periph->path);
printf("Synchronize cache failed, status "
"== 0x%x, scsi status == 0x%x\n",
csio.ccb_h.status, csio.scsi_status);
}
}
}
return (0);
}
static void
dainit(void)
{
cam_status status;
struct cam_path *path;
SLIST_INIT(&softc_list);
/*
* Install a global async callback. This callback will
* receive async callbacks like "new device found".
*/
status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
if (status == CAM_REQ_CMP) {
struct ccb_setasync csa;
xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_FOUND_DEVICE;
csa.callback = daasync;
csa.callback_arg = NULL;
xpt_action((union ccb *)&csa);
status = csa.ccb_h.status;
xpt_free_path(path);
}
if (status != CAM_REQ_CMP) {
printf("da: Failed to attach master async callback "
"due to status 0x%x!\n", status);
} else {
/*
* Schedule a periodic event to occasionally send an
* ordered tag to a device.
*/
timeout(dasendorderedtag, NULL,
(DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL);
/* Register our shutdown event handler */
if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
printf("dainit: shutdown event registration failed!\n");
}
}
static void
daoninvalidate(struct cam_periph *periph)
{
int s;
struct da_softc *softc;
struct ccb_setasync csa;
softc = (struct da_softc *)periph->softc;
/*
* De-register any async callbacks.
*/
xpt_setup_ccb(&csa.ccb_h, periph->path,
/* priority */ 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = 0;
csa.callback = daasync;
csa.callback_arg = periph;
xpt_action((union ccb *)&csa);
softc->flags |= DA_FLAG_PACK_INVALID;
/*
* Although the oninvalidate() routines are always called at
* splsoftcam, we need to be at splbio() here to keep the buffer
* queue from being modified while we traverse it.
*/
s = splbio();
/*
* Return all queued I/O with ENXIO.
* XXX Handle any transactions queued to the card
* with XPT_ABORT_CCB.
*/
bioq_flush(&softc->bio_queue, NULL, ENXIO);
splx(s);
SLIST_REMOVE(&softc_list, softc, da_softc, links);
xpt_print_path(periph->path);
printf("lost device\n");
}
static void
dacleanup(struct cam_periph *periph)
{
struct da_softc *softc;
softc = (struct da_softc *)periph->softc;
xpt_print_path(periph->path);
printf("removing device entry\n");
/*
* If we can't free the sysctl tree, oh well...
*/
if (sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
xpt_print_path(periph->path);
printf("can't remove sysctl context\n");
}
disk_destroy(&softc->disk);
free(softc, M_DEVBUF);
}
static void
daasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg)
{
struct cam_periph *periph;
periph = (struct cam_periph *)callback_arg;
switch (code) {
case AC_FOUND_DEVICE:
{
struct ccb_getdev *cgd;
cam_status status;
cgd = (struct ccb_getdev *)arg;
if (cgd == NULL)
break;
if (SID_TYPE(&cgd->inq_data) != T_DIRECT
&& SID_TYPE(&cgd->inq_data) != T_RBC
&& SID_TYPE(&cgd->inq_data) != T_OPTICAL)
break;
/*
* Allocate a peripheral instance for
* this device and start the probe
* process.
*/
status = cam_periph_alloc(daregister, daoninvalidate,
dacleanup, dastart,
"da", CAM_PERIPH_BIO,
cgd->ccb_h.path, daasync,
AC_FOUND_DEVICE, cgd);
if (status != CAM_REQ_CMP
&& status != CAM_REQ_INPROG)
printf("daasync: Unable to attach to new device "
"due to status 0x%x\n", status);
break;
}
case AC_SENT_BDR:
case AC_BUS_RESET:
{
struct da_softc *softc;
struct ccb_hdr *ccbh;
int s;
softc = (struct da_softc *)periph->softc;
s = splsoftcam();
/*
* Don't fail on the expected unit attention
* that will occur.
*/
softc->flags |= DA_FLAG_RETRY_UA;
LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
ccbh->ccb_state |= DA_CCB_RETRY_UA;
splx(s);
/* FALLTHROUGH*/
}
default:
cam_periph_async(periph, code, path, arg);
break;
}
}
static int
dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
{
int error, value;
value = *(int *)arg1;
error = sysctl_handle_int(oidp, &value, 0, req);
if ((error != 0)
|| (req->newptr == NULL))
return (error);
/*
* Acceptable values here are 6, 10, 12 or 16.
*/
if (value < 6)
value = 6;
else if ((value > 6)
&& (value <= 10))
value = 10;
else if ((value > 10)
&& (value <= 12))
value = 12;
else if (value > 12)
value = 16;
*(int *)arg1 = value;
return (0);
}
static cam_status
daregister(struct cam_periph *periph, void *arg)
{
int s;
struct da_softc *softc;
struct ccb_setasync csa;
struct ccb_getdev *cgd;
char tmpstr[80], tmpstr2[80];
caddr_t match;
cgd = (struct ccb_getdev *)arg;
if (periph == NULL) {
printf("daregister: periph was NULL!!\n");
return(CAM_REQ_CMP_ERR);
}
if (cgd == NULL) {
printf("daregister: no getdev CCB, can't register device\n");
return(CAM_REQ_CMP_ERR);
}
softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
M_NOWAIT|M_ZERO);
if (softc == NULL) {
printf("daregister: Unable to probe new device. "
"Unable to allocate softc\n");
return(CAM_REQ_CMP_ERR);
}
LIST_INIT(&softc->pending_ccbs);
softc->state = DA_STATE_PROBE;
bioq_init(&softc->bio_queue);
if (SID_IS_REMOVABLE(&cgd->inq_data))
softc->flags |= DA_FLAG_PACK_REMOVABLE;
if ((cgd->inq_data.flags & SID_CmdQue) != 0)
softc->flags |= DA_FLAG_TAGGED_QUEUING;
periph->softc = softc;
/*
* See if this device has any quirks.
*/
match = cam_quirkmatch((caddr_t)&cgd->inq_data,
(caddr_t)da_quirk_table,
sizeof(da_quirk_table)/sizeof(*da_quirk_table),
sizeof(*da_quirk_table), scsi_inquiry_match);
if (match != NULL)
softc->quirks = ((struct da_quirk_entry *)match)->quirks;
else
softc->quirks = DA_Q_NONE;
snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
sysctl_ctx_init(&softc->sysctl_ctx);
softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
CTLFLAG_RD, 0, tmpstr);
if (softc->sysctl_tree == NULL) {
printf("daregister: unable to allocate sysctl tree\n");
free(softc, M_DEVBUF);
return (CAM_REQ_CMP_ERR);
}
/*
* RBC devices don't have to support READ(6), only READ(10).
*/
if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
softc->minimum_cmd_size = 10;
else
softc->minimum_cmd_size = 6;
/*
* Load the user's default, if any.
*/
snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
periph->unit_number);
TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
/*
* 6, 10, 12 and 16 are the currently permissible values.
*/
if (softc->minimum_cmd_size < 6)
softc->minimum_cmd_size = 6;
else if ((softc->minimum_cmd_size > 6)
&& (softc->minimum_cmd_size <= 10))
softc->minimum_cmd_size = 10;
else if ((softc->minimum_cmd_size > 10)
&& (softc->minimum_cmd_size <= 12))
softc->minimum_cmd_size = 12;
else if (softc->minimum_cmd_size > 12)
softc->minimum_cmd_size = 16;
/*
* Now register the sysctl handler, so the user can the value on
* the fly.
*/
SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
&softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
"Minimum CDB size");
/*
* Block our timeout handler while we
* add this softc to the dev list.
*/
s = splsoftclock();
SLIST_INSERT_HEAD(&softc_list, softc, links);
splx(s);
/*
* Register this media as a disk
*/
softc->disk.d_open = daopen;
softc->disk.d_close = daclose;
softc->disk.d_strategy = dastrategy;
softc->disk.d_dump = dadump;
softc->disk.d_name = "da";
softc->disk.d_drv1 = periph;
softc->disk.d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */
disk_create(periph->unit_number, &softc->disk, 0, NULL, NULL);
/*
* Add async callbacks for bus reset and
* bus device reset calls. I don't bother
* checking if this fails as, in most cases,
* the system will function just fine without
* them and the only alternative would be to
* not attach the device on failure.
*/
xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
csa.callback = daasync;
csa.callback_arg = periph;
xpt_action((union ccb *)&csa);
/*
* Lock this peripheral until we are setup.
* This first call can't block
*/
(void)cam_periph_lock(periph, PRIBIO);
xpt_schedule(periph, /*priority*/5);
return(CAM_REQ_CMP);
}
static void
dastart(struct cam_periph *periph, union ccb *start_ccb)
{
struct da_softc *softc;
softc = (struct da_softc *)periph->softc;
switch (softc->state) {
case DA_STATE_NORMAL:
{
/* Pull a buffer from the queue and get going on it */
struct bio *bp;
int s;
/*
* See if there is a buf with work for us to do..
*/
s = splbio();
bp = bioq_first(&softc->bio_queue);
if (periph->immediate_priority <= periph->pinfo.priority) {
CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
("queuing for immediate ccb\n"));
start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
periph_links.sle);
periph->immediate_priority = CAM_PRIORITY_NONE;
splx(s);
wakeup(&periph->ccb_list);
} else if (bp == NULL) {
splx(s);
xpt_release_ccb(start_ccb);
} else {
int oldspl;
u_int8_t tag_code;
bioq_remove(&softc->bio_queue, bp);
if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) {
softc->flags &= ~DA_FLAG_NEED_OTAG;
softc->ordered_tag_count++;
tag_code = MSG_ORDERED_Q_TAG;
} else {
tag_code = MSG_SIMPLE_Q_TAG;
}
scsi_read_write(&start_ccb->csio,
/*retries*/da_retry_count,
/*cbfcnp*/dadone,
/*tag_action*/tag_code,
/*read_op*/bp->bio_cmd == BIO_READ,
/*byte2*/0,
softc->minimum_cmd_size,
/*lba*/bp->bio_pblkno,
/*block_count*/bp->bio_bcount /
softc->params.secsize,
/*data_ptr*/ bp->bio_data,
/*dxfer_len*/ bp->bio_bcount,
/*sense_len*/SSD_FULL_SIZE,
/*timeout*/da_default_timeout*1000);
start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
/*
* Block out any asyncronous callbacks
* while we touch the pending ccb list.
*/
oldspl = splcam();
LIST_INSERT_HEAD(&softc->pending_ccbs,
&start_ccb->ccb_h, periph_links.le);
softc->outstanding_cmds++;
splx(oldspl);
/* We expect a unit attention from this device */
if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
softc->flags &= ~DA_FLAG_RETRY_UA;
}
start_ccb->ccb_h.ccb_bp = bp;
bp = bioq_first(&softc->bio_queue);
splx(s);
xpt_action(start_ccb);
}
if (bp != NULL) {
/* Have more work to do, so ensure we stay scheduled */
xpt_schedule(periph, /* XXX priority */1);
}
break;
}
case DA_STATE_PROBE:
{
struct ccb_scsiio *csio;
struct scsi_read_capacity_data *rcap;
rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
M_TEMP,
M_NOWAIT);
if (rcap == NULL) {
printf("dastart: Couldn't malloc read_capacity data\n");
/* da_free_periph??? */
break;
}
csio = &start_ccb->csio;
scsi_read_capacity(csio,
/*retries*/4,
dadone,
MSG_SIMPLE_Q_TAG,
rcap,
SSD_FULL_SIZE,
/*timeout*/5000);
start_ccb->ccb_h.ccb_bp = NULL;
start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
xpt_action(start_ccb);
break;
}
case DA_STATE_PROBE2:
{
struct ccb_scsiio *csio;
struct scsi_read_capacity_data_long *rcaplong;
rcaplong = (struct scsi_read_capacity_data_long *)
malloc(sizeof(*rcaplong), M_TEMP, M_NOWAIT);
if (rcaplong == NULL) {
printf("dastart: Couldn't malloc read_capacity data\n");
/* da_free_periph??? */
break;
}
csio = &start_ccb->csio;
scsi_read_capacity_16(csio,
/*retries*/ 4,
/*cbfcnp*/ dadone,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*lba*/ 0,
/*reladr*/ 0,
/*pmi*/ 0,
rcaplong,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ 60000);
start_ccb->ccb_h.ccb_bp = NULL;
start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
xpt_action(start_ccb);
break;
}
}
}
static int
cmd6workaround(union ccb *ccb)
{
struct scsi_rw_6 cmd6;
struct scsi_rw_10 *cmd10;
struct da_softc *softc;
u_int8_t *cdb;
int frozen;
cdb = ccb->csio.cdb_io.cdb_bytes;
/* Translation only possible if CDB is an array and cmd is R/W6 */
if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
(*cdb != READ_6 && *cdb != WRITE_6))
return 0;
xpt_print_path(ccb->ccb_h.path);
printf("READ(6)/WRITE(6) not supported, "
"increasing minimum_cmd_size to 10.\n");
softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
softc->minimum_cmd_size = 10;
bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
cmd10 = (struct scsi_rw_10 *)cdb;
cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
cmd10->byte2 = 0;
scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
cmd10->reserved = 0;
scsi_ulto2b(cmd6.length, cmd10->length);
cmd10->control = cmd6.control;
ccb->csio.cdb_len = sizeof(*cmd10);
/* Requeue request, unfreezing queue if necessary */
frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
ccb->ccb_h.status = CAM_REQUEUE_REQ;
xpt_action(ccb);
if (frozen) {
cam_release_devq(ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
}
return (ERESTART);
}
static void
dadone(struct cam_periph *periph, union ccb *done_ccb)
{
struct da_softc *softc;
struct ccb_scsiio *csio;
softc = (struct da_softc *)periph->softc;
csio = &done_ccb->csio;
switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
case DA_CCB_BUFFER_IO:
{
struct bio *bp;
int oldspl;
bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
int error;
int s;
int sf;
if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
sf = SF_RETRY_UA;
else
sf = 0;
error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
if (error == ERESTART) {
/*
* A retry was scheuled, so
* just return.
*/
return;
}
if (error != 0) {
s = splbio();
if (error == ENXIO) {
/*
* Catastrophic error. Mark our pack as
* invalid.
*/
/* XXX See if this is really a media
* change first.
*/
xpt_print_path(periph->path);
printf("Invalidating pack\n");
softc->flags |= DA_FLAG_PACK_INVALID;
}
/*
* return all queued I/O with EIO, so that
* the client can retry these I/Os in the
* proper order should it attempt to recover.
*/
bioq_flush(&softc->bio_queue, NULL, EIO);
splx(s);
bp->bio_error = error;
bp->bio_resid = bp->bio_bcount;
bp->bio_flags |= BIO_ERROR;
} else {
bp->bio_resid = csio->resid;
bp->bio_error = 0;
if (bp->bio_resid != 0) {
/* Short transfer ??? */
#if 0
if (cmd6workaround(done_ccb)
== ERESTART)
return;
#endif
bp->bio_flags |= BIO_ERROR;
}
}
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
} else {
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
panic("REQ_CMP with QFRZN");
bp->bio_resid = csio->resid;
if (csio->resid > 0) {
/* Short transfer ??? */
#if 0 /* XXX most of the broken umass devices need this ad-hoc work around */
if (cmd6workaround(done_ccb) == ERESTART)
return;
#endif
bp->bio_flags |= BIO_ERROR;
}
}
/*
* Block out any asyncronous callbacks
* while we touch the pending ccb list.
*/
oldspl = splcam();
LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
softc->outstanding_cmds--;
if (softc->outstanding_cmds == 0)
softc->flags |= DA_FLAG_WENT_IDLE;
splx(oldspl);
biodone(bp);
break;
}
case DA_CCB_PROBE:
case DA_CCB_PROBE2:
{
struct scsi_read_capacity_data *rdcap;
struct scsi_read_capacity_data_long *rcaplong;
char announce_buf[80];
rdcap = NULL;
rcaplong = NULL;
if (softc->state == DA_STATE_PROBE)
rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
else
rcaplong = (struct scsi_read_capacity_data_long *)
csio->data_ptr;
if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
struct disk_params *dp;
uint32_t block_size;
uint64_t maxsector;
if (softc->state == DA_STATE_PROBE) {
block_size = scsi_4btoul(rdcap->length);
maxsector = scsi_4btoul(rdcap->addr);
/*
* According to SBC-2, if the standard 10
* byte READ CAPACITY command returns 2^32,
* we should issue the 16 byte version of
* the command, since the device in question
* has more sectors than can be represented
* with the short version of the command.
*/
if (maxsector == 0xffffffff) {
softc->state = DA_STATE_PROBE2;
free(rdcap, M_TEMP);
xpt_release_ccb(done_ccb);
cam_periph_unlock(periph);
break;
}
} else {
block_size = scsi_4btoul(rcaplong->length);
maxsector = scsi_8btou64(rcaplong->addr);
}
dasetgeom(periph, block_size, maxsector);
dp = &softc->params;
snprintf(announce_buf, sizeof(announce_buf),
"%quMB (%qu %u byte sectors: %dH %dS/T %dC)",
(uint64_t) (((u_int64_t)dp->secsize *
dp->sectors) / (1024*1024)), dp->sectors,
dp->secsize, dp->heads, dp->secs_per_track,
dp->cylinders);
} else {
int error;
announce_buf[0] = '\0';
/*
* Retry any UNIT ATTENTION type errors. They
* are expected at boot.
*/
error = daerror(done_ccb, CAM_RETRY_SELTO,
SF_RETRY_UA|SF_NO_PRINT);
if (error == ERESTART) {
/*
* A retry was scheuled, so
* just return.
*/
return;
} else if (error != 0) {
struct scsi_sense_data *sense;
int asc, ascq;
int sense_key, error_code;
int have_sense;
cam_status status;
struct ccb_getdev cgd;
/* Don't wedge this device's queue */
status = done_ccb->ccb_h.status;
if ((status & CAM_DEV_QFRZN) != 0)
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
xpt_setup_ccb(&cgd.ccb_h,
done_ccb->ccb_h.path,
/* priority */ 1);
cgd.ccb_h.func_code = XPT_GDEV_TYPE;
xpt_action((union ccb *)&cgd);
if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
|| ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
|| ((status & CAM_AUTOSNS_VALID) == 0))
have_sense = FALSE;
else
have_sense = TRUE;
if (have_sense) {
sense = &csio->sense_data;
scsi_extract_sense(sense, &error_code,
&sense_key,
&asc, &ascq);
}
/*
* Attach to anything that claims to be a
* direct access or optical disk device,
* as long as it doesn't return a "Logical
* unit not supported" (0x25) error.
*/
if ((have_sense) && (asc != 0x25)
&& (error_code == SSD_CURRENT_ERROR)) {
const char *sense_key_desc;
const char *asc_desc;
scsi_sense_desc(sense_key, asc, ascq,
&cgd.inq_data,
&sense_key_desc,
&asc_desc);
snprintf(announce_buf,
sizeof(announce_buf),
"Attempt to query device "
"size failed: %s, %s",
sense_key_desc,
asc_desc);
} else {
if (have_sense)
scsi_sense_print(
&done_ccb->csio);
else {
xpt_print_path(periph->path);
printf("got CAM status %#x\n",
done_ccb->ccb_h.status);
}
xpt_print_path(periph->path);
printf("fatal error, failed"
" to attach to device\n");
/*
* Free up resources.
*/
cam_periph_invalidate(periph);
}
}
}
free(csio->data_ptr, M_TEMP);
if (announce_buf[0] != '\0')
xpt_announce_periph(periph, announce_buf);
softc->state = DA_STATE_NORMAL;
/*
* Since our peripheral may be invalidated by an error
* above or an external event, we must release our CCB
* before releasing the probe lock on the peripheral.
* The peripheral will only go away once the last lock
* is removed, and we need it around for the CCB release
* operation.
*/
xpt_release_ccb(done_ccb);
cam_periph_unlock(periph);
return;
}
case DA_CCB_WAITING:
{
/* Caller will release the CCB */
wakeup(&done_ccb->ccb_h.cbfcnp);
return;
}
case DA_CCB_DUMP:
/* No-op. We're polling */
return;
default:
break;
}
xpt_release_ccb(done_ccb);
}
static int
daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
{
struct da_softc *softc;
struct cam_periph *periph;
int error;
periph = xpt_path_periph(ccb->ccb_h.path);
softc = (struct da_softc *)periph->softc;
/*
* Automatically detect devices that do not support
* READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
*/
error = 0;
if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
error = cmd6workaround(ccb);
} else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
CAM_SCSI_STATUS_ERROR)
&& (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
&& (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
&& ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
&& ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
int sense_key, error_code, asc, ascq;
scsi_extract_sense(&ccb->csio.sense_data,
&error_code, &sense_key, &asc, &ascq);
if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
error = cmd6workaround(ccb);
}
if (error == ERESTART)
return (ERESTART);
/*
* XXX
* Until we have a better way of doing pack validation,
* don't treat UAs as errors.
*/
sense_flags |= SF_RETRY_UA;
return(cam_periph_error(ccb, cam_flags, sense_flags,
&softc->saved_ccb));
}
static void
daprevent(struct cam_periph *periph, int action)
{
struct da_softc *softc;
union ccb *ccb;
int error;
softc = (struct da_softc *)periph->softc;
if (((action == PR_ALLOW)
&& (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
|| ((action == PR_PREVENT)
&& (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
return;
}
ccb = cam_periph_getccb(periph, /*priority*/1);
scsi_prevent(&ccb->csio,
/*retries*/1,
/*cbcfp*/dadone,
MSG_SIMPLE_Q_TAG,
action,
SSD_FULL_SIZE,
5000);
error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
SF_RETRY_UA, softc->disk.d_devstat);
if (error == 0) {
if (action == PR_ALLOW)
softc->flags &= ~DA_FLAG_PACK_LOCKED;
else
softc->flags |= DA_FLAG_PACK_LOCKED;
}
xpt_release_ccb(ccb);
}
static int
dagetcapacity(struct cam_periph *periph)
{
struct da_softc *softc;
union ccb *ccb;
struct scsi_read_capacity_data *rcap;
struct scsi_read_capacity_data_long *rcaplong;
uint32_t block_len;
uint64_t maxsector;
int error;
softc = (struct da_softc *)periph->softc;
error = 0;
/* Do a read capacity */
rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
M_TEMP,
M_WAITOK);
ccb = cam_periph_getccb(periph, /*priority*/1);
scsi_read_capacity(&ccb->csio,
/*retries*/4,
/*cbfncp*/dadone,
MSG_SIMPLE_Q_TAG,
rcap,
SSD_FULL_SIZE,
/*timeout*/60000);
ccb->ccb_h.ccb_bp = NULL;
error = cam_periph_runccb(ccb, daerror,
/*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA,
softc->disk.d_devstat);
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
if (error == 0) {
block_len = scsi_4btoul(rcap->length);
maxsector = scsi_4btoul(rcap->addr);
if (maxsector != 0xffffffff)
goto done;
} else
goto done;
rcaplong = (struct scsi_read_capacity_data_long *)rcap;
scsi_read_capacity_16(&ccb->csio,
/*retries*/ 4,
/*cbfcnp*/ dadone,
/*tag_action*/ MSG_SIMPLE_Q_TAG,
/*lba*/ 0,
/*reladr*/ 0,
/*pmi*/ 0,
rcaplong,
/*sense_len*/ SSD_FULL_SIZE,
/*timeout*/ 60000);
ccb->ccb_h.ccb_bp = NULL;
error = cam_periph_runccb(ccb, daerror,
/*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA,
softc->disk.d_devstat);
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
if (error == 0) {
block_len = scsi_4btoul(rcaplong->length);
maxsector = scsi_8btou64(rcaplong->addr);
}
done:
if (error == 0)
dasetgeom(periph, block_len, maxsector);
xpt_release_ccb(ccb);
free(rcap, M_TEMP);
return (error);
}
static void
dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
{
struct ccb_calc_geometry ccg;
struct da_softc *softc;
struct disk_params *dp;
softc = (struct da_softc *)periph->softc;
dp = &softc->params;
dp->secsize = block_len;
dp->sectors = maxsector + 1;
/*
* Have the controller provide us with a geometry
* for this disk. The only time the geometry
* matters is when we boot and the controller
* is the only one knowledgeable enough to come
* up with something that will make this a bootable
* device.
*/
xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
ccg.block_size = dp->secsize;
ccg.volume_size = dp->sectors;
ccg.heads = 0;
ccg.secs_per_track = 0;
ccg.cylinders = 0;
xpt_action((union ccb*)&ccg);
dp->heads = ccg.heads;
dp->secs_per_track = ccg.secs_per_track;
dp->cylinders = ccg.cylinders;
}
static void
dasendorderedtag(void *arg)
{
struct da_softc *softc;
int s;
for (softc = SLIST_FIRST(&softc_list);
softc != NULL;
softc = SLIST_NEXT(softc, links)) {
s = splsoftcam();
if ((softc->ordered_tag_count == 0)
&& ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
softc->flags |= DA_FLAG_NEED_OTAG;
}
if (softc->outstanding_cmds > 0)
softc->flags &= ~DA_FLAG_WENT_IDLE;
softc->ordered_tag_count = 0;
splx(s);
}
/* Queue us up again */
timeout(dasendorderedtag, NULL,
(da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL);
}
/*
* Step through all DA peripheral drivers, and if the device is still open,
* sync the disk cache to physical media.
*/
static void
dashutdown(void * arg, int howto)
{
struct cam_periph *periph;
struct da_softc *softc;
TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
union ccb ccb;
softc = (struct da_softc *)periph->softc;
/*
* We only sync the cache if the drive is still open, and
* if the drive is capable of it..
*/
if (((softc->flags & DA_FLAG_OPEN) == 0)
|| (softc->quirks & DA_Q_NO_SYNC_CACHE))
continue;
xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
ccb.ccb_h.ccb_state = DA_CCB_DUMP;
scsi_synchronize_cache(&ccb.csio,
/*retries*/1,
/*cbfcnp*/dadone,
MSG_SIMPLE_Q_TAG,
/*begin_lba*/0, /* whole disk */
/*lb_count*/0,
SSD_FULL_SIZE,
60 * 60 * 1000);
xpt_polled_action(&ccb);
if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
CAM_SCSI_STATUS_ERROR)
&& (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
int error_code, sense_key, asc, ascq;
scsi_extract_sense(&ccb.csio.sense_data,
&error_code, &sense_key,
&asc, &ascq);
if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
scsi_sense_print(&ccb.csio);
} else {
xpt_print_path(periph->path);
printf("Synchronize cache failed, status "
"== 0x%x, scsi status == 0x%x\n",
ccb.ccb_h.status, ccb.csio.scsi_status);
}
}
if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
cam_release_devq(ccb.ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
}
}
#else /* !_KERNEL */
/*
* XXX This is only left out of the kernel build to silence warnings. If,
* for some reason this function is used in the kernel, the ifdefs should
* be moved so it is included both in the kernel and userland.
*/
void
scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout)
{
struct scsi_format_unit *scsi_cmd;
scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
scsi_cmd->opcode = FORMAT_UNIT;
scsi_cmd->byte2 = byte2;
scsi_ulto2b(ileave, scsi_cmd->interleave);
cam_fill_csio(csio,
retries,
cbfcnp,
/*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
tag_action,
data_ptr,
dxfer_len,
sense_len,
sizeof(*scsi_cmd),
timeout);
}
#endif /* _KERNEL */
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