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sd.c revision 1.305
      1  1.305  dholland /*	$NetBSD: sd.c,v 1.305 2014/03/16 05:20:29 dholland Exp $	*/
      2   1.33       cgd 
      3  1.134   mycroft /*-
      4  1.224   mycroft  * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc.
      5  1.134   mycroft  * All rights reserved.
      6  1.134   mycroft  *
      7  1.134   mycroft  * This code is derived from software contributed to The NetBSD Foundation
      8  1.134   mycroft  * by Charles M. Hannum.
      9   1.25   mycroft  *
     10   1.25   mycroft  * Redistribution and use in source and binary forms, with or without
     11   1.25   mycroft  * modification, are permitted provided that the following conditions
     12   1.25   mycroft  * are met:
     13   1.25   mycroft  * 1. Redistributions of source code must retain the above copyright
     14   1.25   mycroft  *    notice, this list of conditions and the following disclaimer.
     15   1.25   mycroft  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.25   mycroft  *    notice, this list of conditions and the following disclaimer in the
     17   1.25   mycroft  *    documentation and/or other materials provided with the distribution.
     18   1.25   mycroft  *
     19  1.134   mycroft  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.134   mycroft  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.134   mycroft  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.134   mycroft  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.134   mycroft  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.134   mycroft  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.134   mycroft  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.134   mycroft  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.134   mycroft  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.134   mycroft  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.134   mycroft  * POSSIBILITY OF SUCH DAMAGE.
     30   1.25   mycroft  */
     31   1.25   mycroft 
     32   1.75   mycroft /*
     33   1.25   mycroft  * Originally written by Julian Elischer (julian (at) dialix.oz.au)
     34    1.8   deraadt  * for TRW Financial Systems for use under the MACH(2.5) operating system.
     35    1.1       cgd  *
     36    1.1       cgd  * TRW Financial Systems, in accordance with their agreement with Carnegie
     37    1.1       cgd  * Mellon University, makes this software available to CMU to distribute
     38    1.1       cgd  * or use in any manner that they see fit as long as this message is kept with
     39    1.1       cgd  * the software. For this reason TFS also grants any other persons or
     40    1.1       cgd  * organisations permission to use or modify this software.
     41    1.1       cgd  *
     42    1.1       cgd  * TFS supplies this software to be publicly redistributed
     43    1.1       cgd  * on the understanding that TFS is not responsible for the correct
     44    1.1       cgd  * functioning of this software in any circumstances.
     45    1.9       cgd  *
     46   1.25   mycroft  * Ported to run under 386BSD by Julian Elischer (julian (at) dialix.oz.au) Sept 1992
     47    1.1       cgd  */
     48  1.179     lukem 
     49  1.179     lukem #include <sys/cdefs.h>
     50  1.305  dholland __KERNEL_RCSID(0, "$NetBSD: sd.c,v 1.305 2014/03/16 05:20:29 dholland Exp $");
     51    1.1       cgd 
     52  1.128    mjacob #include "opt_scsi.h"
     53  1.121  explorer 
     54   1.19   mycroft #include <sys/param.h>
     55   1.19   mycroft #include <sys/systm.h>
     56   1.54   mycroft #include <sys/kernel.h>
     57   1.19   mycroft #include <sys/file.h>
     58   1.19   mycroft #include <sys/stat.h>
     59   1.19   mycroft #include <sys/ioctl.h>
     60  1.140    bouyer #include <sys/scsiio.h>
     61   1.19   mycroft #include <sys/buf.h>
     62  1.229      yamt #include <sys/bufq.h>
     63   1.19   mycroft #include <sys/uio.h>
     64   1.19   mycroft #include <sys/malloc.h>
     65   1.19   mycroft #include <sys/errno.h>
     66   1.25   mycroft #include <sys/device.h>
     67   1.19   mycroft #include <sys/disklabel.h>
     68   1.25   mycroft #include <sys/disk.h>
     69   1.87  christos #include <sys/proc.h>
     70   1.95  christos #include <sys/conf.h>
     71  1.147   thorpej #include <sys/vnode.h>
     72  1.120  explorer #include <sys/rnd.h>
     73  1.296       tls #include <sys/cprng.h>
     74   1.19   mycroft 
     75  1.236   thorpej #include <dev/scsipi/scsi_spc.h>
     76  1.116    bouyer #include <dev/scsipi/scsipi_all.h>
     77  1.116    bouyer #include <dev/scsipi/scsi_all.h>
     78  1.124       cgd #include <dev/scsipi/scsipi_disk.h>
     79  1.116    bouyer #include <dev/scsipi/scsi_disk.h>
     80  1.116    bouyer #include <dev/scsipi/scsiconf.h>
     81  1.223    bouyer #include <dev/scsipi/scsipi_base.h>
     82  1.124       cgd #include <dev/scsipi/sdvar.h>
     83  1.124       cgd 
     84  1.260   jnemeth #include <prop/proplib.h>
     85  1.260   jnemeth 
     86   1.36       cgd #define	SDUNIT(dev)			DISKUNIT(dev)
     87   1.36       cgd #define	SDPART(dev)			DISKPART(dev)
     88  1.148     enami #define	SDMINOR(unit, part)		DISKMINOR(unit, part)
     89   1.36       cgd #define	MAKESDDEV(maj, unit, part)	MAKEDISKDEV(maj, unit, part)
     90   1.36       cgd 
     91   1.36       cgd #define	SDLABELDEV(dev)	(MAKESDDEV(major(dev), SDUNIT(dev), RAW_PART))
     92    1.1       cgd 
     93  1.256     itohy #define	SD_DEFAULT_BLKSIZE	512
     94  1.256     itohy 
     95  1.220   thorpej static void	sdminphys(struct buf *);
     96  1.220   thorpej static void	sdgetdefaultlabel(struct sd_softc *, struct disklabel *);
     97  1.248   nathanw static int	sdgetdisklabel(struct sd_softc *);
     98  1.220   thorpej static void	sdstart(struct scsipi_periph *);
     99  1.221    bouyer static void	sdrestart(void *);
    100  1.224   mycroft static void	sddone(struct scsipi_xfer *, int);
    101  1.292    dyoung static bool	sd_suspend(device_t, const pmf_qual_t *);
    102  1.279    dyoung static bool	sd_shutdown(device_t, int);
    103  1.220   thorpej static int	sd_interpret_sense(struct scsipi_xfer *);
    104  1.285    dyoung static int	sdlastclose(device_t);
    105  1.220   thorpej 
    106  1.235   reinoud static int	sd_mode_sense(struct sd_softc *, u_int8_t, void *, size_t, int,
    107  1.220   thorpej 		    int, int *);
    108  1.235   reinoud static int	sd_mode_select(struct sd_softc *, u_int8_t, void *, size_t, int,
    109  1.220   thorpej 		    int);
    110  1.256     itohy static int	sd_validate_blksize(struct scsipi_periph *, int);
    111  1.256     itohy static u_int64_t sd_read_capacity(struct scsipi_periph *, int *, int flags);
    112  1.220   thorpej static int	sd_get_simplifiedparms(struct sd_softc *, struct disk_parms *,
    113  1.220   thorpej 		    int);
    114  1.220   thorpej static int	sd_get_capacity(struct sd_softc *, struct disk_parms *, int);
    115  1.220   thorpej static int	sd_get_parms(struct sd_softc *, struct disk_parms *, int);
    116  1.237     perry static int	sd_get_parms_page4(struct sd_softc *, struct disk_parms *,
    117  1.220   thorpej 		    int);
    118  1.237     perry static int	sd_get_parms_page5(struct sd_softc *, struct disk_parms *,
    119  1.220   thorpej 		    int);
    120  1.220   thorpej 
    121  1.220   thorpej static int	sd_flush(struct sd_softc *, int);
    122  1.220   thorpej static int	sd_getcache(struct sd_softc *, int *);
    123  1.220   thorpej static int	sd_setcache(struct sd_softc *, int);
    124  1.220   thorpej 
    125  1.281    cegger static int	sdmatch(device_t, cfdata_t, void *);
    126  1.281    cegger static void	sdattach(device_t, device_t, void *);
    127  1.281    cegger static int	sddetach(device_t, int);
    128  1.300  christos static void	sd_set_geometry(struct sd_softc *);
    129  1.209   mycroft 
    130  1.278    dyoung CFATTACH_DECL3_NEW(sd, sizeof(struct sd_softc), sdmatch, sdattach, sddetach,
    131  1.284    dyoung     NULL, NULL, NULL, DVF_DETACH_SHUTDOWN);
    132  1.209   mycroft 
    133  1.123   thorpej extern struct cfdriver sd_cd;
    134   1.25   mycroft 
    135  1.220   thorpej static const struct scsipi_inquiry_pattern sd_patterns[] = {
    136  1.209   mycroft 	{T_DIRECT, T_FIXED,
    137  1.209   mycroft 	 "",         "",                 ""},
    138  1.209   mycroft 	{T_DIRECT, T_REMOV,
    139  1.209   mycroft 	 "",         "",                 ""},
    140  1.209   mycroft 	{T_OPTICAL, T_FIXED,
    141  1.209   mycroft 	 "",         "",                 ""},
    142  1.209   mycroft 	{T_OPTICAL, T_REMOV,
    143  1.209   mycroft 	 "",         "",                 ""},
    144  1.209   mycroft 	{T_SIMPLE_DIRECT, T_FIXED,
    145  1.209   mycroft 	 "",         "",                 ""},
    146  1.209   mycroft 	{T_SIMPLE_DIRECT, T_REMOV,
    147  1.209   mycroft 	 "",         "",                 ""},
    148  1.209   mycroft };
    149  1.209   mycroft 
    150  1.220   thorpej static dev_type_open(sdopen);
    151  1.220   thorpej static dev_type_close(sdclose);
    152  1.220   thorpej static dev_type_read(sdread);
    153  1.220   thorpej static dev_type_write(sdwrite);
    154  1.220   thorpej static dev_type_ioctl(sdioctl);
    155  1.220   thorpej static dev_type_strategy(sdstrategy);
    156  1.220   thorpej static dev_type_dump(sddump);
    157  1.220   thorpej static dev_type_size(sdsize);
    158  1.187   gehenna 
    159  1.187   gehenna const struct bdevsw sd_bdevsw = {
    160  1.305  dholland 	.d_open = sdopen,
    161  1.305  dholland 	.d_close = sdclose,
    162  1.305  dholland 	.d_strategy = sdstrategy,
    163  1.305  dholland 	.d_ioctl = sdioctl,
    164  1.305  dholland 	.d_dump = sddump,
    165  1.305  dholland 	.d_psize = sdsize,
    166  1.305  dholland 	.d_flag = D_DISK
    167  1.187   gehenna };
    168  1.187   gehenna 
    169  1.187   gehenna const struct cdevsw sd_cdevsw = {
    170  1.305  dholland 	.d_open = sdopen,
    171  1.305  dholland 	.d_close = sdclose,
    172  1.305  dholland 	.d_read = sdread,
    173  1.305  dholland 	.d_write = sdwrite,
    174  1.305  dholland 	.d_ioctl = sdioctl,
    175  1.305  dholland 	.d_stop = nostop,
    176  1.305  dholland 	.d_tty = notty,
    177  1.305  dholland 	.d_poll = nopoll,
    178  1.305  dholland 	.d_mmap = nommap,
    179  1.305  dholland 	.d_kqfilter = nokqfilter,
    180  1.305  dholland 	.d_flag = D_DISK
    181  1.187   gehenna };
    182  1.187   gehenna 
    183  1.227   thorpej static struct dkdriver sddkdriver = { sdstrategy, sdminphys };
    184   1.25   mycroft 
    185  1.220   thorpej static const struct scsipi_periphsw sd_switch = {
    186  1.127    mjacob 	sd_interpret_sense,	/* check our error handler first */
    187   1.25   mycroft 	sdstart,		/* have a queue, served by this */
    188   1.25   mycroft 	NULL,			/* have no async handler */
    189   1.84   thorpej 	sddone,			/* deal with stats at interrupt time */
    190   1.25   mycroft };
    191    1.1       cgd 
    192  1.209   mycroft struct sd_mode_sense_data {
    193  1.209   mycroft 	/*
    194  1.209   mycroft 	 * XXX
    195  1.209   mycroft 	 * We are not going to parse this as-is -- it just has to be large
    196  1.209   mycroft 	 * enough.
    197  1.209   mycroft 	 */
    198  1.209   mycroft 	union {
    199  1.236   thorpej 		struct scsi_mode_parameter_header_6 small;
    200  1.236   thorpej 		struct scsi_mode_parameter_header_10 big;
    201  1.209   mycroft 	} header;
    202  1.236   thorpej 	struct scsi_general_block_descriptor blk_desc;
    203  1.209   mycroft 	union scsi_disk_pages pages;
    204  1.209   mycroft };
    205  1.209   mycroft 
    206  1.209   mycroft /*
    207  1.209   mycroft  * The routine called by the low level scsi routine when it discovers
    208  1.209   mycroft  * A device suitable for this driver
    209  1.209   mycroft  */
    210  1.220   thorpej static int
    211  1.281    cegger sdmatch(device_t parent, cfdata_t match,
    212  1.252  christos     void *aux)
    213  1.209   mycroft {
    214  1.209   mycroft 	struct scsipibus_attach_args *sa = aux;
    215  1.209   mycroft 	int priority;
    216  1.209   mycroft 
    217  1.209   mycroft 	(void)scsipi_inqmatch(&sa->sa_inqbuf,
    218  1.240  christos 	    sd_patterns, sizeof(sd_patterns) / sizeof(sd_patterns[0]),
    219  1.209   mycroft 	    sizeof(sd_patterns[0]), &priority);
    220  1.209   mycroft 
    221  1.209   mycroft 	return (priority);
    222  1.209   mycroft }
    223  1.209   mycroft 
    224    1.3   deraadt /*
    225  1.171    bouyer  * Attach routine common to atapi & scsi.
    226    1.3   deraadt  */
    227  1.220   thorpej static void
    228  1.281    cegger sdattach(device_t parent, device_t self, void *aux)
    229  1.209   mycroft {
    230  1.247   thorpej 	struct sd_softc *sd = device_private(self);
    231  1.209   mycroft 	struct scsipibus_attach_args *sa = aux;
    232  1.209   mycroft 	struct scsipi_periph *periph = sa->sa_periph;
    233  1.301       tls 	int error, result;
    234   1.25   mycroft 	struct disk_parms *dp = &sd->params;
    235  1.145     lukem 	char pbuf[9];
    236   1.25   mycroft 
    237  1.171    bouyer 	SC_DEBUG(periph, SCSIPI_DB2, ("sdattach: "));
    238   1.25   mycroft 
    239  1.275  drochner 	sd->sc_dev = self;
    240  1.209   mycroft 	sd->type = (sa->sa_inqbuf.type & SID_TYPE);
    241  1.257  drochner 	strncpy(sd->name, sa->sa_inqbuf.product, sizeof(sd->name));
    242  1.209   mycroft 	if (sd->type == T_SIMPLE_DIRECT)
    243  1.209   mycroft 		periph->periph_quirks |= PQUIRK_ONLYBIG | PQUIRK_NOBIGMODESENSE;
    244  1.209   mycroft 
    245  1.298    bouyer 	if (SCSIPI_BUSTYPE_TYPE(scsipi_periph_bustype(sa->sa_periph)) ==
    246  1.298    bouyer 	    SCSIPI_BUSTYPE_SCSI && periph->periph_version == 0)
    247  1.209   mycroft 		sd->flags |= SDF_ANCIENT;
    248  1.209   mycroft 
    249  1.241      yamt 	bufq_alloc(&sd->buf_queue, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK);
    250  1.155   thorpej 
    251  1.262        ad 	callout_init(&sd->sc_callout, 0);
    252  1.221    bouyer 
    253   1.25   mycroft 	/*
    254   1.25   mycroft 	 * Store information needed to contact our base driver
    255   1.25   mycroft 	 */
    256  1.171    bouyer 	sd->sc_periph = periph;
    257  1.171    bouyer 
    258  1.275  drochner 	periph->periph_dev = sd->sc_dev;
    259  1.171    bouyer 	periph->periph_switch = &sd_switch;
    260  1.171    bouyer 
    261  1.171    bouyer         /*
    262  1.171    bouyer          * Increase our openings to the maximum-per-periph
    263  1.171    bouyer          * supported by the adapter.  This will either be
    264  1.171    bouyer          * clamped down or grown by the adapter if necessary.
    265  1.171    bouyer          */
    266  1.171    bouyer 	periph->periph_openings =
    267  1.171    bouyer 	    SCSIPI_CHAN_MAX_PERIPH(periph->periph_channel);
    268  1.171    bouyer 	periph->periph_flags |= PERIPH_GROW_OPENINGS;
    269    1.3   deraadt 
    270   1.81   thorpej 	/*
    271   1.84   thorpej 	 * Initialize and attach the disk structure.
    272   1.81   thorpej 	 */
    273  1.275  drochner 	disk_init(&sd->sc_dk, device_xname(sd->sc_dev), &sddkdriver);
    274   1.84   thorpej 	disk_attach(&sd->sc_dk);
    275   1.81   thorpej 
    276    1.3   deraadt 	/*
    277  1.165     soren 	 * Use the subdriver to request information regarding the drive.
    278    1.3   deraadt 	 */
    279  1.200   thorpej 	aprint_naive("\n");
    280  1.200   thorpej 	aprint_normal("\n");
    281  1.105  matthias 
    282  1.297  christos 	if (periph->periph_quirks & PQUIRK_START)
    283  1.297  christos 		(void)scsipi_start(periph, SSS_START, XS_CTL_SILENT);
    284  1.297  christos 
    285  1.204   mycroft 	error = scsipi_test_unit_ready(periph,
    286  1.149   thorpej 	    XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST |
    287  1.204   mycroft 	    XS_CTL_IGNORE_MEDIA_CHANGE | XS_CTL_SILENT_NODEV);
    288  1.105  matthias 
    289  1.124       cgd 	if (error)
    290  1.124       cgd 		result = SDGP_RESULT_OFFLINE;
    291   1.51   mycroft 	else
    292  1.209   mycroft 		result = sd_get_parms(sd, &sd->params, XS_CTL_DISCOVERY);
    293  1.275  drochner 	aprint_normal_dev(sd->sc_dev, "");
    294  1.124       cgd 	switch (result) {
    295  1.124       cgd 	case SDGP_RESULT_OK:
    296  1.145     lukem 		format_bytes(pbuf, sizeof(pbuf),
    297  1.235   reinoud 		    (u_int64_t)dp->disksize * dp->blksize);
    298  1.200   thorpej 	        aprint_normal(
    299  1.235   reinoud 		"%s, %ld cyl, %ld head, %ld sec, %ld bytes/sect x %llu sectors",
    300  1.145     lukem 		    pbuf, dp->cyls, dp->heads, dp->sectors, dp->blksize,
    301  1.235   reinoud 		    (unsigned long long)dp->disksize);
    302  1.124       cgd 		break;
    303  1.124       cgd 
    304  1.124       cgd 	case SDGP_RESULT_OFFLINE:
    305  1.200   thorpej 		aprint_normal("drive offline");
    306  1.124       cgd 		break;
    307  1.124       cgd 
    308  1.124       cgd 	case SDGP_RESULT_UNFORMATTED:
    309  1.200   thorpej 		aprint_normal("unformatted media");
    310  1.124       cgd 		break;
    311  1.124       cgd 
    312  1.124       cgd #ifdef DIAGNOSTIC
    313  1.124       cgd 	default:
    314  1.124       cgd 		panic("sdattach: unknown result from get_parms");
    315  1.124       cgd 		break;
    316  1.124       cgd #endif
    317  1.124       cgd 	}
    318  1.200   thorpej 	aprint_normal("\n");
    319  1.120  explorer 
    320  1.270  drochner 	/*
    321  1.270  drochner 	 * Establish a shutdown hook so that we can ensure that
    322  1.270  drochner 	 * our data has actually made it onto the platter at
    323  1.270  drochner 	 * shutdown time.  Note that this relies on the fact
    324  1.279    dyoung 	 * that the shutdown hooks at the "leaves" of the device tree
    325  1.279    dyoung 	 * are run, first (thus guaranteeing that our hook runs before
    326  1.270  drochner 	 * our ancestors').
    327  1.270  drochner 	 */
    328  1.279    dyoung 	if (!pmf_device_register1(self, sd_suspend, NULL, sd_shutdown))
    329  1.268  jmcneill 		aprint_error_dev(self, "couldn't establish power handler\n");
    330  1.132   thorpej 
    331  1.120  explorer 	/*
    332  1.120  explorer 	 * attach the device into the random source list
    333  1.120  explorer 	 */
    334  1.275  drochner 	rnd_attach_source(&sd->rnd_source, device_xname(sd->sc_dev),
    335  1.144  explorer 			  RND_TYPE_DISK, 0);
    336  1.227   thorpej 
    337  1.227   thorpej 	/* Discover wedges on this disk. */
    338  1.227   thorpej 	dkwedge_discover(&sd->sc_dk);
    339  1.296       tls 
    340  1.296       tls 	/*
    341  1.296       tls 	 * Disk insertion and removal times can be a useful source
    342  1.296       tls 	 * of entropy, though the estimator should never _count_
    343  1.296       tls 	 * these bits, on insertion, because the deltas to the
    344  1.296       tls 	 * nonexistent) previous event should never allow it.
    345  1.296       tls 	 */
    346  1.301       tls 	rnd_add_uint32(&sd->rnd_source, 0);
    347    1.1       cgd }
    348    1.1       cgd 
    349  1.220   thorpej static int
    350  1.281    cegger sddetach(device_t self, int flags)
    351  1.147   thorpej {
    352  1.247   thorpej 	struct sd_softc *sd = device_private(self);
    353  1.301       tls 	int s, bmaj, cmaj, i, mn, rc;
    354  1.296       tls 
    355  1.301       tls 	rnd_add_uint32(&sd->rnd_source, 0);
    356  1.282    dyoung 
    357  1.286    dyoung 	if ((rc = disk_begindetach(&sd->sc_dk, sdlastclose, self, flags)) != 0)
    358  1.282    dyoung 		return rc;
    359  1.147   thorpej 
    360  1.147   thorpej 	/* locate the major number */
    361  1.187   gehenna 	bmaj = bdevsw_lookup_major(&sd_bdevsw);
    362  1.187   gehenna 	cmaj = cdevsw_lookup_major(&sd_cdevsw);
    363  1.147   thorpej 
    364  1.224   mycroft 	/* Nuke the vnodes for any open instances */
    365  1.224   mycroft 	for (i = 0; i < MAXPARTITIONS; i++) {
    366  1.246   thorpej 		mn = SDMINOR(device_unit(self), i);
    367  1.224   mycroft 		vdevgone(bmaj, mn, mn, VBLK);
    368  1.224   mycroft 		vdevgone(cmaj, mn, mn, VCHR);
    369  1.224   mycroft 	}
    370  1.224   mycroft 
    371  1.221    bouyer 	/* kill any pending restart */
    372  1.221    bouyer 	callout_stop(&sd->sc_callout);
    373  1.221    bouyer 
    374  1.227   thorpej 	/* Delete all of our wedges. */
    375  1.227   thorpej 	dkwedge_delall(&sd->sc_dk);
    376  1.227   thorpej 
    377  1.147   thorpej 	s = splbio();
    378  1.147   thorpej 
    379  1.147   thorpej 	/* Kill off any queued buffers. */
    380  1.241      yamt 	bufq_drain(sd->buf_queue);
    381  1.185   hannken 
    382  1.241      yamt 	bufq_free(sd->buf_queue);
    383  1.147   thorpej 
    384  1.147   thorpej 	/* Kill off any pending commands. */
    385  1.171    bouyer 	scsipi_kill_pending(sd->sc_periph);
    386  1.147   thorpej 
    387  1.147   thorpej 	splx(s);
    388  1.147   thorpej 
    389  1.147   thorpej 	/* Detach from the disk list. */
    390  1.147   thorpej 	disk_detach(&sd->sc_dk);
    391  1.267        ad 	disk_destroy(&sd->sc_dk);
    392  1.147   thorpej 
    393  1.278    dyoung 	callout_destroy(&sd->sc_callout);
    394  1.278    dyoung 
    395  1.268  jmcneill 	pmf_device_deregister(self);
    396  1.147   thorpej 
    397  1.147   thorpej 	/* Unhook the entropy source. */
    398  1.147   thorpej 	rnd_detach_source(&sd->rnd_source);
    399  1.147   thorpej 
    400  1.147   thorpej 	return (0);
    401  1.147   thorpej }
    402  1.147   thorpej 
    403   1.65   mycroft /*
    404   1.25   mycroft  * open the device. Make sure the partition info is a up-to-date as can be.
    405    1.3   deraadt  */
    406  1.220   thorpej static int
    407  1.254  christos sdopen(dev_t dev, int flag, int fmt, struct lwp *l)
    408    1.1       cgd {
    409   1.51   mycroft 	struct sd_softc *sd;
    410  1.171    bouyer 	struct scsipi_periph *periph;
    411  1.171    bouyer 	struct scsipi_adapter *adapt;
    412   1.65   mycroft 	int unit, part;
    413   1.65   mycroft 	int error;
    414    1.1       cgd 
    415   1.25   mycroft 	unit = SDUNIT(dev);
    416  1.274   tsutsui 	sd = device_lookup_private(&sd_cd, unit);
    417  1.112        pk 	if (sd == NULL)
    418  1.118     enami 		return (ENXIO);
    419    1.3   deraadt 
    420  1.275  drochner 	if (!device_is_active(sd->sc_dev))
    421  1.147   thorpej 		return (ENODEV);
    422  1.147   thorpej 
    423  1.227   thorpej 	part = SDPART(dev);
    424  1.227   thorpej 
    425  1.263        ad 	mutex_enter(&sd->sc_dk.dk_openlock);
    426  1.237     perry 
    427  1.227   thorpej 	/*
    428  1.227   thorpej 	 * If there are wedges, and this is not RAW_PART, then we
    429  1.227   thorpej 	 * need to fail.
    430  1.227   thorpej 	 */
    431  1.227   thorpej 	if (sd->sc_dk.dk_nwedges != 0 && part != RAW_PART) {
    432  1.227   thorpej 		error = EBUSY;
    433  1.227   thorpej 		goto bad1;
    434  1.227   thorpej 	}
    435  1.227   thorpej 
    436  1.171    bouyer 	periph = sd->sc_periph;
    437  1.171    bouyer 	adapt = periph->periph_channel->chan_adapter;
    438   1.25   mycroft 
    439  1.171    bouyer 	SC_DEBUG(periph, SCSIPI_DB1,
    440  1.276    cegger 	    ("sdopen: dev=0x%"PRIx64" (unit %d (of %d), partition %d)\n", dev, unit,
    441  1.140    bouyer 	    sd_cd.cd_ndevs, part));
    442    1.3   deraadt 
    443  1.137   thorpej 	/*
    444  1.137   thorpej 	 * If this is the first open of this device, add a reference
    445  1.137   thorpej 	 * to the adapter.
    446  1.137   thorpej 	 */
    447  1.137   thorpej 	if (sd->sc_dk.dk_openmask == 0 &&
    448  1.171    bouyer 	    (error = scsipi_adapter_addref(adapt)) != 0)
    449  1.227   thorpej 		goto bad1;
    450   1.45   mycroft 
    451  1.171    bouyer 	if ((periph->periph_flags & PERIPH_OPEN) != 0) {
    452   1.47   mycroft 		/*
    453   1.47   mycroft 		 * If any partition is open, but the disk has been invalidated,
    454  1.140    bouyer 		 * disallow further opens of non-raw partition
    455   1.47   mycroft 		 */
    456  1.171    bouyer 		if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0 &&
    457  1.141    bouyer 		    (part != RAW_PART || fmt != S_IFCHR)) {
    458   1.66   mycroft 			error = EIO;
    459  1.227   thorpej 			goto bad2;
    460   1.66   mycroft 		}
    461   1.47   mycroft 	} else {
    462  1.207   mycroft 		int silent;
    463  1.207   mycroft 
    464  1.294  jmcneill 		if ((part == RAW_PART && fmt == S_IFCHR) || (flag & FSILENT))
    465  1.207   mycroft 			silent = XS_CTL_SILENT;
    466  1.207   mycroft 		else
    467  1.207   mycroft 			silent = 0;
    468  1.207   mycroft 
    469   1.55   mycroft 		/* Check that it is still responding and ok. */
    470  1.171    bouyer 		error = scsipi_test_unit_ready(periph,
    471  1.149   thorpej 		    XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE |
    472  1.208   mycroft 		    silent);
    473   1.57   mycroft 
    474  1.140    bouyer 		/*
    475  1.140    bouyer 		 * Start the pack spinning if necessary. Always allow the
    476  1.140    bouyer 		 * raw parition to be opened, for raw IOCTLs. Data transfers
    477  1.140    bouyer 		 * will check for SDEV_MEDIA_LOADED.
    478  1.140    bouyer 		 */
    479  1.206   mycroft 		if (error == EIO) {
    480  1.207   mycroft 			int error2;
    481  1.204   mycroft 
    482  1.204   mycroft 			error2 = scsipi_start(periph, SSS_START, silent);
    483  1.204   mycroft 			switch (error2) {
    484  1.204   mycroft 			case 0:
    485  1.204   mycroft 				error = 0;
    486  1.204   mycroft 				break;
    487  1.206   mycroft 			case EIO:
    488  1.204   mycroft 			case EINVAL:
    489  1.204   mycroft 				break;
    490  1.204   mycroft 			default:
    491  1.204   mycroft 				error = error2;
    492  1.204   mycroft 				break;
    493  1.204   mycroft 			}
    494  1.140    bouyer 		}
    495  1.207   mycroft 		if (error) {
    496  1.294  jmcneill 			if (silent && (flag & FSILENT) == 0)
    497  1.207   mycroft 				goto out;
    498  1.227   thorpej 			goto bad2;
    499  1.207   mycroft 		}
    500   1.57   mycroft 
    501  1.171    bouyer 		periph->periph_flags |= PERIPH_OPEN;
    502   1.48   mycroft 
    503  1.171    bouyer 		if (periph->periph_flags & PERIPH_REMOVABLE) {
    504  1.170  explorer 			/* Lock the pack in. */
    505  1.236   thorpej 			error = scsipi_prevent(periph, SPAMR_PREVENT_DT,
    506  1.171    bouyer 			    XS_CTL_IGNORE_ILLEGAL_REQUEST |
    507  1.249  drochner 			    XS_CTL_IGNORE_MEDIA_CHANGE |
    508  1.249  drochner 			    XS_CTL_SILENT);
    509  1.170  explorer 			if (error)
    510  1.227   thorpej 				goto bad3;
    511  1.170  explorer 		}
    512   1.54   mycroft 
    513  1.171    bouyer 		if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) {
    514  1.217    bouyer 			int param_error;
    515  1.171    bouyer 			periph->periph_flags |= PERIPH_MEDIA_LOADED;
    516    1.3   deraadt 
    517  1.124       cgd 			/*
    518  1.124       cgd 			 * Load the physical device parameters.
    519  1.124       cgd 			 *
    520  1.124       cgd 			 * Note that if media is present but unformatted,
    521  1.124       cgd 			 * we allow the open (so that it can be formatted!).
    522  1.124       cgd 			 * The drive should refuse real I/O, if the media is
    523  1.124       cgd 			 * unformatted.
    524  1.124       cgd 			 */
    525  1.217    bouyer 			if ((param_error = sd_get_parms(sd, &sd->params, 0))
    526  1.217    bouyer 			     == SDGP_RESULT_OFFLINE) {
    527   1.45   mycroft 				error = ENXIO;
    528  1.227   thorpej 				periph->periph_flags &= ~PERIPH_MEDIA_LOADED;
    529  1.227   thorpej 				goto bad3;
    530   1.45   mycroft 			}
    531  1.171    bouyer 			SC_DEBUG(periph, SCSIPI_DB3, ("Params loaded "));
    532   1.45   mycroft 
    533   1.45   mycroft 			/* Load the partition info if not already loaded. */
    534  1.217    bouyer 			if (param_error == 0) {
    535  1.249  drochner 				if ((sdgetdisklabel(sd) != 0) && (part != RAW_PART)) {
    536  1.248   nathanw 					error = EIO;
    537  1.248   nathanw 					goto bad3;
    538  1.248   nathanw 				}
    539  1.217    bouyer 				SC_DEBUG(periph, SCSIPI_DB3,
    540  1.217    bouyer 				     ("Disklabel loaded "));
    541  1.217    bouyer 			}
    542   1.45   mycroft 		}
    543   1.65   mycroft 	}
    544   1.25   mycroft 
    545   1.47   mycroft 	/* Check that the partition exists. */
    546   1.37   mycroft 	if (part != RAW_PART &&
    547   1.84   thorpej 	    (part >= sd->sc_dk.dk_label->d_npartitions ||
    548   1.84   thorpej 	     sd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) {
    549   1.25   mycroft 		error = ENXIO;
    550  1.227   thorpej 		goto bad3;
    551    1.1       cgd 	}
    552    1.3   deraadt 
    553  1.227   thorpej  out:	/* Insure only one open at a time. */
    554   1.37   mycroft 	switch (fmt) {
    555   1.37   mycroft 	case S_IFCHR:
    556   1.40   mycroft 		sd->sc_dk.dk_copenmask |= (1 << part);
    557   1.37   mycroft 		break;
    558   1.37   mycroft 	case S_IFBLK:
    559   1.40   mycroft 		sd->sc_dk.dk_bopenmask |= (1 << part);
    560   1.37   mycroft 		break;
    561    1.1       cgd 	}
    562  1.118     enami 	sd->sc_dk.dk_openmask =
    563  1.118     enami 	    sd->sc_dk.dk_copenmask | sd->sc_dk.dk_bopenmask;
    564   1.37   mycroft 
    565  1.171    bouyer 	SC_DEBUG(periph, SCSIPI_DB3, ("open complete\n"));
    566  1.263        ad 	mutex_exit(&sd->sc_dk.dk_openlock);
    567  1.118     enami 	return (0);
    568    1.1       cgd 
    569  1.227   thorpej  bad3:
    570   1.40   mycroft 	if (sd->sc_dk.dk_openmask == 0) {
    571  1.205   mycroft 		if (periph->periph_flags & PERIPH_REMOVABLE)
    572  1.236   thorpej 			scsipi_prevent(periph, SPAMR_ALLOW,
    573  1.205   mycroft 			    XS_CTL_IGNORE_ILLEGAL_REQUEST |
    574  1.249  drochner 			    XS_CTL_IGNORE_MEDIA_CHANGE |
    575  1.249  drochner 			    XS_CTL_SILENT);
    576  1.171    bouyer 		periph->periph_flags &= ~PERIPH_OPEN;
    577   1.65   mycroft 	}
    578   1.45   mycroft 
    579  1.227   thorpej  bad2:
    580  1.137   thorpej 	if (sd->sc_dk.dk_openmask == 0)
    581  1.171    bouyer 		scsipi_adapter_delref(adapt);
    582  1.227   thorpej 
    583  1.227   thorpej  bad1:
    584  1.263        ad 	mutex_exit(&sd->sc_dk.dk_openlock);
    585  1.118     enami 	return (error);
    586    1.1       cgd }
    587    1.1       cgd 
    588    1.3   deraadt /*
    589  1.282    dyoung  * Caller must hold sd->sc_dk.dk_openlock.
    590  1.282    dyoung  */
    591  1.285    dyoung static int
    592  1.285    dyoung sdlastclose(device_t self)
    593  1.282    dyoung {
    594  1.285    dyoung 	struct sd_softc *sd = device_private(self);
    595  1.282    dyoung 	struct scsipi_periph *periph = sd->sc_periph;
    596  1.282    dyoung 	struct scsipi_adapter *adapt = periph->periph_channel->chan_adapter;
    597  1.282    dyoung 
    598  1.282    dyoung 	/*
    599  1.282    dyoung 	 * If the disk cache needs flushing, and the disk supports
    600  1.282    dyoung 	 * it, do it now.
    601  1.282    dyoung 	 */
    602  1.282    dyoung 	if ((sd->flags & SDF_DIRTY) != 0) {
    603  1.282    dyoung 		if (sd_flush(sd, 0)) {
    604  1.282    dyoung 			aprint_error_dev(sd->sc_dev,
    605  1.282    dyoung 				"cache synchronization failed\n");
    606  1.282    dyoung 			sd->flags &= ~SDF_FLUSHING;
    607  1.282    dyoung 		} else
    608  1.282    dyoung 			sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY);
    609  1.282    dyoung 	}
    610  1.282    dyoung 
    611  1.282    dyoung 	scsipi_wait_drain(periph);
    612  1.282    dyoung 
    613  1.282    dyoung 	if (periph->periph_flags & PERIPH_REMOVABLE)
    614  1.282    dyoung 		scsipi_prevent(periph, SPAMR_ALLOW,
    615  1.282    dyoung 		    XS_CTL_IGNORE_ILLEGAL_REQUEST |
    616  1.282    dyoung 		    XS_CTL_IGNORE_NOT_READY |
    617  1.282    dyoung 		    XS_CTL_SILENT);
    618  1.282    dyoung 	periph->periph_flags &= ~PERIPH_OPEN;
    619  1.282    dyoung 
    620  1.282    dyoung 	scsipi_wait_drain(periph);
    621  1.282    dyoung 
    622  1.282    dyoung 	scsipi_adapter_delref(adapt);
    623  1.285    dyoung 
    624  1.285    dyoung 	return 0;
    625  1.282    dyoung }
    626  1.282    dyoung 
    627  1.282    dyoung /*
    628   1.25   mycroft  * close the device.. only called if we are the LAST occurence of an open
    629   1.25   mycroft  * device.  Convenient now but usually a pain.
    630    1.3   deraadt  */
    631  1.220   thorpej static int
    632  1.254  christos sdclose(dev_t dev, int flag, int fmt, struct lwp *l)
    633    1.1       cgd {
    634  1.274   tsutsui 	struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(dev));
    635   1.37   mycroft 	int part = SDPART(dev);
    636   1.37   mycroft 
    637  1.263        ad 	mutex_enter(&sd->sc_dk.dk_openlock);
    638   1.37   mycroft 	switch (fmt) {
    639   1.37   mycroft 	case S_IFCHR:
    640   1.40   mycroft 		sd->sc_dk.dk_copenmask &= ~(1 << part);
    641   1.37   mycroft 		break;
    642   1.37   mycroft 	case S_IFBLK:
    643   1.40   mycroft 		sd->sc_dk.dk_bopenmask &= ~(1 << part);
    644   1.37   mycroft 		break;
    645   1.37   mycroft 	}
    646  1.118     enami 	sd->sc_dk.dk_openmask =
    647  1.118     enami 	    sd->sc_dk.dk_copenmask | sd->sc_dk.dk_bopenmask;
    648   1.25   mycroft 
    649  1.282    dyoung 	if (sd->sc_dk.dk_openmask == 0)
    650  1.285    dyoung 		sdlastclose(sd->sc_dev);
    651   1.47   mycroft 
    652  1.263        ad 	mutex_exit(&sd->sc_dk.dk_openlock);
    653  1.118     enami 	return (0);
    654    1.1       cgd }
    655    1.1       cgd 
    656    1.3   deraadt /*
    657   1.25   mycroft  * Actually translate the requested transfer into one the physical driver
    658   1.25   mycroft  * can understand.  The transfer is described by a buf and will include
    659    1.3   deraadt  * only one physical transfer.
    660    1.3   deraadt  */
    661  1.220   thorpej static void
    662  1.220   thorpej sdstrategy(struct buf *bp)
    663    1.1       cgd {
    664  1.274   tsutsui 	struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(bp->b_dev));
    665  1.171    bouyer 	struct scsipi_periph *periph = sd->sc_periph;
    666  1.157   thorpej 	struct disklabel *lp;
    667  1.157   thorpej 	daddr_t blkno;
    668   1.77   mycroft 	int s;
    669  1.259   thorpej 	bool sector_aligned;
    670    1.1       cgd 
    671  1.171    bouyer 	SC_DEBUG(sd->sc_periph, SCSIPI_DB2, ("sdstrategy "));
    672  1.171    bouyer 	SC_DEBUG(sd->sc_periph, SCSIPI_DB1,
    673  1.228    dogcow 	    ("%d bytes @ blk %" PRId64 "\n", bp->b_bcount, bp->b_blkno));
    674   1.80   mycroft 	/*
    675  1.140    bouyer 	 * If the device has been made invalid, error out
    676   1.80   mycroft 	 */
    677  1.171    bouyer 	if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0 ||
    678  1.275  drochner 	    !device_is_active(sd->sc_dev)) {
    679  1.171    bouyer 		if (periph->periph_flags & PERIPH_OPEN)
    680  1.141    bouyer 			bp->b_error = EIO;
    681  1.141    bouyer 		else
    682  1.141    bouyer 			bp->b_error = ENODEV;
    683  1.264        ad 		goto done;
    684   1.80   mycroft 	}
    685  1.157   thorpej 
    686  1.157   thorpej 	lp = sd->sc_dk.dk_label;
    687  1.157   thorpej 
    688   1.25   mycroft 	/*
    689  1.143    bouyer 	 * The transfer must be a whole number of blocks, offset must not be
    690  1.143    bouyer 	 * negative.
    691   1.25   mycroft 	 */
    692  1.166       chs 	if (lp->d_secsize == DEV_BSIZE) {
    693  1.166       chs 		sector_aligned = (bp->b_bcount & (DEV_BSIZE - 1)) == 0;
    694  1.166       chs 	} else {
    695  1.166       chs 		sector_aligned = (bp->b_bcount % lp->d_secsize) == 0;
    696  1.166       chs 	}
    697  1.166       chs 	if (!sector_aligned || bp->b_blkno < 0) {
    698  1.140    bouyer 		bp->b_error = EINVAL;
    699  1.264        ad 		goto done;
    700    1.1       cgd 	}
    701   1.25   mycroft 	/*
    702   1.25   mycroft 	 * If it's a null transfer, return immediatly
    703   1.25   mycroft 	 */
    704    1.1       cgd 	if (bp->b_bcount == 0)
    705    1.1       cgd 		goto done;
    706   1.52   mycroft 
    707    1.3   deraadt 	/*
    708   1.52   mycroft 	 * Do bounds checking, adjust transfer. if error, process.
    709   1.52   mycroft 	 * If end of partition, just return.
    710    1.3   deraadt 	 */
    711  1.197      fvdl 	if (SDPART(bp->b_dev) == RAW_PART) {
    712  1.197      fvdl 		if (bounds_check_with_mediasize(bp, DEV_BSIZE,
    713  1.197      fvdl 		    sd->params.disksize512) <= 0)
    714  1.197      fvdl 			goto done;
    715  1.197      fvdl 	} else {
    716  1.199   thorpej 		if (bounds_check_with_label(&sd->sc_dk, bp,
    717  1.197      fvdl 		    (sd->flags & (SDF_WLABEL|SDF_LABELLING)) != 0) <= 0)
    718  1.197      fvdl 			goto done;
    719  1.197      fvdl 	}
    720   1.37   mycroft 
    721  1.157   thorpej 	/*
    722  1.157   thorpej 	 * Now convert the block number to absolute and put it in
    723  1.157   thorpej 	 * terms of the device's logical block size.
    724  1.157   thorpej 	 */
    725  1.166       chs 	if (lp->d_secsize == DEV_BSIZE)
    726  1.166       chs 		blkno = bp->b_blkno;
    727  1.166       chs 	else if (lp->d_secsize > DEV_BSIZE)
    728  1.157   thorpej 		blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE);
    729  1.157   thorpej 	else
    730  1.157   thorpej 		blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize);
    731  1.214        pk 
    732  1.157   thorpej 	if (SDPART(bp->b_dev) != RAW_PART)
    733  1.157   thorpej 		blkno += lp->d_partitions[SDPART(bp->b_dev)].p_offset;
    734  1.214        pk 
    735  1.157   thorpej 	bp->b_rawblkno = blkno;
    736  1.157   thorpej 
    737   1.77   mycroft 	s = splbio();
    738    1.1       cgd 
    739   1.25   mycroft 	/*
    740  1.171    bouyer 	 * Place it in the queue of disk activities for this disk.
    741  1.171    bouyer 	 *
    742  1.171    bouyer 	 * XXX Only do disksort() if the current operating mode does not
    743  1.171    bouyer 	 * XXX include tagged queueing.
    744   1.25   mycroft 	 */
    745  1.277      yamt 	bufq_put(sd->buf_queue, bp);
    746    1.1       cgd 
    747    1.3   deraadt 	/*
    748    1.3   deraadt 	 * Tell the device to get going on the transfer if it's
    749    1.3   deraadt 	 * not doing anything, otherwise just wait for completion
    750    1.3   deraadt 	 */
    751  1.171    bouyer 	sdstart(sd->sc_periph);
    752    1.1       cgd 
    753   1.77   mycroft 	splx(s);
    754    1.1       cgd 	return;
    755   1.25   mycroft 
    756    1.1       cgd done:
    757   1.25   mycroft 	/*
    758   1.25   mycroft 	 * Correctly set the buf to indicate a completed xfer
    759   1.25   mycroft 	 */
    760   1.25   mycroft 	bp->b_resid = bp->b_bcount;
    761    1.1       cgd 	biodone(bp);
    762    1.1       cgd }
    763    1.1       cgd 
    764    1.3   deraadt /*
    765    1.3   deraadt  * sdstart looks to see if there is a buf waiting for the device
    766    1.3   deraadt  * and that the device is not already busy. If both are true,
    767   1.25   mycroft  * It dequeues the buf and creates a scsi command to perform the
    768  1.116    bouyer  * transfer in the buf. The transfer request will call scsipi_done
    769    1.3   deraadt  * on completion, which will in turn call this routine again
    770    1.3   deraadt  * so that the next queued transfer is performed.
    771    1.3   deraadt  * The bufs are queued by the strategy routine (sdstrategy)
    772   1.25   mycroft  *
    773    1.3   deraadt  * This routine is also called after other non-queued requests
    774    1.3   deraadt  * have been made of the scsi driver, to ensure that the queue
    775    1.3   deraadt  * continues to be drained.
    776   1.25   mycroft  *
    777    1.3   deraadt  * must be called at the correct (highish) spl level
    778  1.222    bouyer  * sdstart() is called at splbio from sdstrategy, sdrestart and scsipi_done
    779    1.3   deraadt  */
    780  1.220   thorpej static void
    781  1.220   thorpej sdstart(struct scsipi_periph *periph)
    782    1.3   deraadt {
    783  1.275  drochner 	struct sd_softc *sd = device_private(periph->periph_dev);
    784  1.118     enami 	struct disklabel *lp = sd->sc_dk.dk_label;
    785   1.25   mycroft 	struct buf *bp = 0;
    786  1.230   thorpej 	struct scsipi_rw_16 cmd16;
    787  1.231   thorpej 	struct scsipi_rw_10 cmd_big;
    788  1.231   thorpej 	struct scsi_rw_6 cmd_small;
    789  1.116    bouyer 	struct scsipi_generic *cmdp;
    790  1.223    bouyer 	struct scsipi_xfer *xs;
    791  1.304    martin 	int nblks, cmdlen, error __diagused, flags;
    792    1.3   deraadt 
    793  1.171    bouyer 	SC_DEBUG(periph, SCSIPI_DB2, ("sdstart "));
    794    1.3   deraadt 	/*
    795   1.25   mycroft 	 * Check if the device has room for another command
    796    1.3   deraadt 	 */
    797  1.171    bouyer 	while (periph->periph_active < periph->periph_openings) {
    798   1.25   mycroft 		/*
    799   1.75   mycroft 		 * there is excess capacity, but a special waits
    800   1.25   mycroft 		 * It'll need the adapter as soon as we clear out of the
    801   1.25   mycroft 		 * way and let it run (user level wait).
    802   1.25   mycroft 		 */
    803  1.171    bouyer 		if (periph->periph_flags & PERIPH_WAITING) {
    804  1.171    bouyer 			periph->periph_flags &= ~PERIPH_WAITING;
    805  1.261  christos 			wakeup((void *)periph);
    806   1.25   mycroft 			return;
    807   1.25   mycroft 		}
    808    1.1       cgd 
    809   1.25   mycroft 		/*
    810   1.25   mycroft 		 * If the device has become invalid, abort all the
    811   1.25   mycroft 		 * reads and writes until all files have been closed and
    812   1.51   mycroft 		 * re-opened
    813   1.25   mycroft 		 */
    814  1.221    bouyer 		if (__predict_false(
    815  1.221    bouyer 		    (periph->periph_flags & PERIPH_MEDIA_LOADED) == 0)) {
    816  1.277      yamt 			if ((bp = bufq_get(sd->buf_queue)) != NULL) {
    817  1.221    bouyer 				bp->b_error = EIO;
    818  1.221    bouyer 				bp->b_resid = bp->b_bcount;
    819  1.221    bouyer 				biodone(bp);
    820  1.221    bouyer 				continue;
    821  1.221    bouyer 			} else {
    822  1.221    bouyer 				return;
    823  1.221    bouyer 			}
    824   1.25   mycroft 		}
    825    1.1       cgd 
    826   1.25   mycroft 		/*
    827  1.221    bouyer 		 * See if there is a buf with work for us to do..
    828  1.221    bouyer 		 */
    829  1.277      yamt 		if ((bp = bufq_peek(sd->buf_queue)) == NULL)
    830  1.221    bouyer 			return;
    831  1.221    bouyer 
    832  1.221    bouyer 		/*
    833  1.157   thorpej 		 * We have a buf, now we should make a command.
    834   1.25   mycroft 		 */
    835  1.157   thorpej 
    836  1.166       chs 		if (lp->d_secsize == DEV_BSIZE)
    837  1.166       chs 			nblks = bp->b_bcount >> DEV_BSHIFT;
    838  1.166       chs 		else
    839  1.166       chs 			nblks = howmany(bp->b_bcount, lp->d_secsize);
    840    1.3   deraadt 
    841   1.25   mycroft 		/*
    842  1.230   thorpej 		 * Fill out the scsi command.  Use the smallest CDB possible
    843  1.230   thorpej 		 * (6-byte, 10-byte, or 16-byte).
    844   1.25   mycroft 		 */
    845  1.157   thorpej 		if (((bp->b_rawblkno & 0x1fffff) == bp->b_rawblkno) &&
    846  1.171    bouyer 		    ((nblks & 0xff) == nblks) &&
    847  1.203   mycroft 		    !(periph->periph_quirks & PQUIRK_ONLYBIG)) {
    848  1.230   thorpej 			/* 6-byte CDB */
    849  1.178   thorpej 			memset(&cmd_small, 0, sizeof(cmd_small));
    850   1.81   thorpej 			cmd_small.opcode = (bp->b_flags & B_READ) ?
    851  1.231   thorpej 			    SCSI_READ_6_COMMAND : SCSI_WRITE_6_COMMAND;
    852  1.157   thorpej 			_lto3b(bp->b_rawblkno, cmd_small.addr);
    853   1.81   thorpej 			cmd_small.length = nblks & 0xff;
    854   1.81   thorpej 			cmdlen = sizeof(cmd_small);
    855  1.116    bouyer 			cmdp = (struct scsipi_generic *)&cmd_small;
    856  1.230   thorpej 		} else if ((bp->b_rawblkno & 0xffffffff) == bp->b_rawblkno) {
    857  1.230   thorpej 			/* 10-byte CDB */
    858  1.178   thorpej 			memset(&cmd_big, 0, sizeof(cmd_big));
    859   1.81   thorpej 			cmd_big.opcode = (bp->b_flags & B_READ) ?
    860  1.231   thorpej 			    READ_10 : WRITE_10;
    861  1.157   thorpej 			_lto4b(bp->b_rawblkno, cmd_big.addr);
    862   1.91   mycroft 			_lto2b(nblks, cmd_big.length);
    863   1.81   thorpej 			cmdlen = sizeof(cmd_big);
    864  1.116    bouyer 			cmdp = (struct scsipi_generic *)&cmd_big;
    865  1.230   thorpej 		} else {
    866  1.230   thorpej 			/* 16-byte CDB */
    867  1.230   thorpej 			memset(&cmd16, 0, sizeof(cmd16));
    868  1.230   thorpej 			cmd16.opcode = (bp->b_flags & B_READ) ?
    869  1.230   thorpej 			    READ_16 : WRITE_16;
    870  1.230   thorpej 			_lto8b(bp->b_rawblkno, cmd16.addr);
    871  1.230   thorpej 			_lto4b(nblks, cmd16.length);
    872  1.230   thorpej 			cmdlen = sizeof(cmd16);
    873  1.230   thorpej 			cmdp = (struct scsipi_generic *)&cmd16;
    874   1.81   thorpej 		}
    875    1.1       cgd 
    876   1.84   thorpej 		/* Instrumentation. */
    877   1.84   thorpej 		disk_busy(&sd->sc_dk);
    878   1.84   thorpej 
    879   1.25   mycroft 		/*
    880  1.132   thorpej 		 * Mark the disk dirty so that the cache will be
    881  1.132   thorpej 		 * flushed on close.
    882  1.132   thorpej 		 */
    883  1.135   thorpej 		if ((bp->b_flags & B_READ) == 0)
    884  1.135   thorpej 			sd->flags |= SDF_DIRTY;
    885  1.132   thorpej 
    886  1.132   thorpej 		/*
    887  1.171    bouyer 		 * Figure out what flags to use.
    888  1.171    bouyer 		 */
    889  1.186   hannken 		flags = XS_CTL_NOSLEEP|XS_CTL_ASYNC|XS_CTL_SIMPLE_TAG;
    890  1.171    bouyer 		if (bp->b_flags & B_READ)
    891  1.172   thorpej 			flags |= XS_CTL_DATA_IN;
    892  1.173   tsutsui 		else
    893  1.173   tsutsui 			flags |= XS_CTL_DATA_OUT;
    894  1.171    bouyer 
    895  1.171    bouyer 		/*
    896   1.25   mycroft 		 * Call the routine that chats with the adapter.
    897   1.25   mycroft 		 * Note: we cannot sleep as we may be an interrupt
    898   1.25   mycroft 		 */
    899  1.223    bouyer 		xs = scsipi_make_xs(periph, cmdp, cmdlen,
    900  1.235   reinoud 		    (u_char *)bp->b_data, bp->b_bcount,
    901  1.175    mjacob 		    SDRETRIES, SD_IO_TIMEOUT, bp, flags);
    902  1.223    bouyer 		if (__predict_false(xs == NULL)) {
    903  1.221    bouyer 			/*
    904  1.221    bouyer 			 * out of memory. Keep this buffer in the queue, and
    905  1.221    bouyer 			 * retry later.
    906  1.221    bouyer 			 */
    907  1.221    bouyer 			callout_reset(&sd->sc_callout, hz / 2, sdrestart,
    908  1.221    bouyer 			    periph);
    909  1.221    bouyer 			return;
    910  1.221    bouyer 		}
    911  1.223    bouyer 		/*
    912  1.223    bouyer 		 * need to dequeue the buffer before queuing the command,
    913  1.223    bouyer 		 * because cdstart may be called recursively from the
    914  1.223    bouyer 		 * HBA driver
    915  1.223    bouyer 		 */
    916  1.221    bouyer #ifdef DIAGNOSTIC
    917  1.277      yamt 		if (bufq_get(sd->buf_queue) != bp)
    918  1.221    bouyer 			panic("sdstart(): dequeued wrong buf");
    919  1.221    bouyer #else
    920  1.277      yamt 		bufq_get(sd->buf_queue);
    921  1.221    bouyer #endif
    922  1.225   mycroft 		error = scsipi_execute_xs(xs);
    923  1.223    bouyer 		/* with a scsipi_xfer preallocated, scsipi_command can't fail */
    924  1.223    bouyer 		KASSERT(error == 0);
    925   1.25   mycroft 	}
    926   1.72   mycroft }
    927   1.72   mycroft 
    928  1.220   thorpej static void
    929  1.221    bouyer sdrestart(void *v)
    930  1.221    bouyer {
    931  1.221    bouyer 	int s = splbio();
    932  1.221    bouyer 	sdstart((struct scsipi_periph *)v);
    933  1.221    bouyer 	splx(s);
    934  1.221    bouyer }
    935  1.221    bouyer 
    936  1.221    bouyer static void
    937  1.224   mycroft sddone(struct scsipi_xfer *xs, int error)
    938   1.84   thorpej {
    939  1.275  drochner 	struct sd_softc *sd = device_private(xs->xs_periph->periph_dev);
    940  1.224   mycroft 	struct buf *bp = xs->bp;
    941   1.84   thorpej 
    942  1.132   thorpej 	if (sd->flags & SDF_FLUSHING) {
    943  1.132   thorpej 		/* Flush completed, no longer dirty. */
    944  1.132   thorpej 		sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY);
    945  1.132   thorpej 	}
    946  1.132   thorpej 
    947  1.224   mycroft 	if (bp) {
    948  1.224   mycroft 		bp->b_error = error;
    949  1.224   mycroft 		bp->b_resid = xs->resid;
    950  1.250   reinoud 		if (error) {
    951  1.250   reinoud 			/* on a read/write error bp->b_resid is zero, so fix */
    952  1.264        ad 			bp->b_resid = bp->b_bcount;
    953  1.250   reinoud 		}
    954  1.224   mycroft 
    955  1.224   mycroft 		disk_unbusy(&sd->sc_dk, bp->b_bcount - bp->b_resid,
    956  1.224   mycroft 		    (bp->b_flags & B_READ));
    957  1.224   mycroft 		rnd_add_uint32(&sd->rnd_source, bp->b_rawblkno);
    958  1.224   mycroft 
    959  1.224   mycroft 		biodone(bp);
    960  1.120  explorer 	}
    961   1.84   thorpej }
    962   1.84   thorpej 
    963  1.220   thorpej static void
    964  1.220   thorpej sdminphys(struct buf *bp)
    965   1.81   thorpej {
    966  1.274   tsutsui 	struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(bp->b_dev));
    967  1.240  christos 	long xmax;
    968   1.81   thorpej 
    969   1.81   thorpej 	/*
    970   1.81   thorpej 	 * If the device is ancient, we want to make sure that
    971   1.81   thorpej 	 * the transfer fits into a 6-byte cdb.
    972   1.82   thorpej 	 *
    973   1.82   thorpej 	 * XXX Note that the SCSI-I spec says that 256-block transfers
    974   1.82   thorpej 	 * are allowed in a 6-byte read/write, and are specified
    975   1.82   thorpej 	 * by settng the "length" to 0.  However, we're conservative
    976   1.82   thorpej 	 * here, allowing only 255-block transfers in case an
    977   1.82   thorpej 	 * ancient device gets confused by length == 0.  A length of 0
    978   1.82   thorpej 	 * in a 10-byte read/write actually means 0 blocks.
    979   1.81   thorpej 	 */
    980  1.167  augustss 	if ((sd->flags & SDF_ANCIENT) &&
    981  1.171    bouyer 	    ((sd->sc_periph->periph_flags &
    982  1.171    bouyer 	    (PERIPH_REMOVABLE | PERIPH_MEDIA_LOADED)) != PERIPH_REMOVABLE)) {
    983  1.240  christos 		xmax = sd->sc_dk.dk_label->d_secsize * 0xff;
    984   1.81   thorpej 
    985  1.240  christos 		if (bp->b_bcount > xmax)
    986  1.240  christos 			bp->b_bcount = xmax;
    987   1.81   thorpej 	}
    988   1.81   thorpej 
    989  1.216   thorpej 	scsipi_adapter_minphys(sd->sc_periph->periph_channel, bp);
    990   1.81   thorpej }
    991   1.81   thorpej 
    992  1.220   thorpej static int
    993  1.254  christos sdread(dev_t dev, struct uio *uio, int ioflag)
    994   1.72   mycroft {
    995   1.72   mycroft 
    996   1.81   thorpej 	return (physio(sdstrategy, NULL, dev, B_READ, sdminphys, uio));
    997   1.72   mycroft }
    998   1.72   mycroft 
    999  1.220   thorpej static int
   1000  1.254  christos sdwrite(dev_t dev, struct uio *uio, int ioflag)
   1001   1.72   mycroft {
   1002   1.72   mycroft 
   1003   1.81   thorpej 	return (physio(sdstrategy, NULL, dev, B_WRITE, sdminphys, uio));
   1004    1.1       cgd }
   1005    1.3   deraadt 
   1006    1.3   deraadt /*
   1007    1.3   deraadt  * Perform special action on behalf of the user
   1008    1.3   deraadt  * Knows about the internals of this device
   1009    1.3   deraadt  */
   1010  1.220   thorpej static int
   1011  1.261  christos sdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l)
   1012    1.1       cgd {
   1013  1.274   tsutsui 	struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(dev));
   1014  1.171    bouyer 	struct scsipi_periph *periph = sd->sc_periph;
   1015  1.142    bouyer 	int part = SDPART(dev);
   1016  1.303     skrll 	int error;
   1017  1.293  jakllsch 	int s;
   1018  1.168      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1019  1.192      fvdl 	struct disklabel *newlabel = NULL;
   1020  1.168      fvdl #endif
   1021    1.1       cgd 
   1022  1.171    bouyer 	SC_DEBUG(sd->sc_periph, SCSIPI_DB2, ("sdioctl 0x%lx ", cmd));
   1023  1.147   thorpej 
   1024   1.25   mycroft 	/*
   1025  1.140    bouyer 	 * If the device is not valid, some IOCTLs can still be
   1026  1.140    bouyer 	 * handled on the raw partition. Check this here.
   1027   1.25   mycroft 	 */
   1028  1.171    bouyer 	if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) {
   1029  1.140    bouyer 		switch (cmd) {
   1030  1.154       leo 		case DIOCKLABEL:
   1031  1.140    bouyer 		case DIOCWLABEL:
   1032  1.140    bouyer 		case DIOCLOCK:
   1033  1.140    bouyer 		case DIOCEJECT:
   1034  1.142    bouyer 		case ODIOCEJECT:
   1035  1.181   thorpej 		case DIOCGCACHE:
   1036  1.181   thorpej 		case DIOCSCACHE:
   1037  1.293  jakllsch 		case DIOCGSTRATEGY:
   1038  1.293  jakllsch 		case DIOCSSTRATEGY:
   1039  1.140    bouyer 		case SCIOCIDENTIFY:
   1040  1.140    bouyer 		case OSCIOCIDENTIFY:
   1041  1.140    bouyer 		case SCIOCCOMMAND:
   1042  1.140    bouyer 		case SCIOCDEBUG:
   1043  1.142    bouyer 			if (part == RAW_PART)
   1044  1.140    bouyer 				break;
   1045  1.140    bouyer 		/* FALLTHROUGH */
   1046  1.140    bouyer 		default:
   1047  1.171    bouyer 			if ((periph->periph_flags & PERIPH_OPEN) == 0)
   1048  1.141    bouyer 				return (ENODEV);
   1049  1.141    bouyer 			else
   1050  1.141    bouyer 				return (EIO);
   1051  1.140    bouyer 		}
   1052  1.140    bouyer 	}
   1053   1.45   mycroft 
   1054  1.287      haad 	error = disk_ioctl(&sd->sc_dk, cmd, addr, flag, l);
   1055  1.287      haad 	if (error != EPASSTHROUGH)
   1056  1.287      haad 		return (error);
   1057  1.287      haad 
   1058  1.302  kiyohara 	error = 0;
   1059   1.25   mycroft 	switch (cmd) {
   1060    1.1       cgd 	case DIOCGDINFO:
   1061   1.84   thorpej 		*(struct disklabel *)addr = *(sd->sc_dk.dk_label);
   1062  1.118     enami 		return (0);
   1063   1.25   mycroft 
   1064  1.168      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1065  1.168      fvdl 	case ODIOCGDINFO:
   1066  1.192      fvdl 		newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1067  1.192      fvdl 		if (newlabel == NULL)
   1068  1.192      fvdl 			return EIO;
   1069  1.192      fvdl 		memcpy(newlabel, sd->sc_dk.dk_label, sizeof (*newlabel));
   1070  1.192      fvdl 		if (newlabel->d_npartitions <= OLDMAXPARTITIONS)
   1071  1.192      fvdl 			memcpy(addr, newlabel, sizeof (struct olddisklabel));
   1072  1.192      fvdl 		else
   1073  1.192      fvdl 			error = ENOTTY;
   1074  1.192      fvdl 		free(newlabel, M_TEMP);
   1075  1.192      fvdl 		return error;
   1076  1.168      fvdl #endif
   1077  1.168      fvdl 
   1078    1.3   deraadt 	case DIOCGPART:
   1079   1.84   thorpej 		((struct partinfo *)addr)->disklab = sd->sc_dk.dk_label;
   1080   1.37   mycroft 		((struct partinfo *)addr)->part =
   1081  1.142    bouyer 		    &sd->sc_dk.dk_label->d_partitions[part];
   1082  1.118     enami 		return (0);
   1083   1.25   mycroft 
   1084   1.61   mycroft 	case DIOCWDINFO:
   1085    1.3   deraadt 	case DIOCSDINFO:
   1086  1.168      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1087  1.168      fvdl 	case ODIOCWDINFO:
   1088  1.168      fvdl 	case ODIOCSDINFO:
   1089  1.168      fvdl #endif
   1090  1.168      fvdl 	{
   1091  1.168      fvdl 		struct disklabel *lp;
   1092  1.168      fvdl 
   1093  1.192      fvdl 		if ((flag & FWRITE) == 0)
   1094  1.192      fvdl 			return (EBADF);
   1095  1.192      fvdl 
   1096  1.168      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1097  1.168      fvdl  		if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) {
   1098  1.295     joerg 			newlabel = malloc(sizeof *newlabel, M_TEMP,
   1099  1.295     joerg 			    M_WAITOK | M_ZERO);
   1100  1.192      fvdl 			if (newlabel == NULL)
   1101  1.192      fvdl 				return EIO;
   1102  1.192      fvdl 			memcpy(newlabel, addr, sizeof (struct olddisklabel));
   1103  1.192      fvdl 			lp = newlabel;
   1104  1.168      fvdl 		} else
   1105  1.168      fvdl #endif
   1106  1.168      fvdl 		lp = (struct disklabel *)addr;
   1107  1.168      fvdl 
   1108  1.263        ad 		mutex_enter(&sd->sc_dk.dk_openlock);
   1109   1.65   mycroft 		sd->flags |= SDF_LABELLING;
   1110   1.61   mycroft 
   1111   1.84   thorpej 		error = setdisklabel(sd->sc_dk.dk_label,
   1112  1.168      fvdl 		    lp, /*sd->sc_dk.dk_openmask : */0,
   1113   1.84   thorpej 		    sd->sc_dk.dk_cpulabel);
   1114   1.62   mycroft 		if (error == 0) {
   1115  1.168      fvdl 			if (cmd == DIOCWDINFO
   1116  1.168      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1117  1.168      fvdl 			    || cmd == ODIOCWDINFO
   1118  1.168      fvdl #endif
   1119  1.168      fvdl 			   )
   1120   1.62   mycroft 				error = writedisklabel(SDLABELDEV(dev),
   1121   1.84   thorpej 				    sdstrategy, sd->sc_dk.dk_label,
   1122   1.84   thorpej 				    sd->sc_dk.dk_cpulabel);
   1123   1.62   mycroft 		}
   1124   1.61   mycroft 
   1125   1.61   mycroft 		sd->flags &= ~SDF_LABELLING;
   1126  1.263        ad 		mutex_exit(&sd->sc_dk.dk_openlock);
   1127  1.192      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1128  1.192      fvdl 		if (newlabel != NULL)
   1129  1.192      fvdl 			free(newlabel, M_TEMP);
   1130  1.192      fvdl #endif
   1131  1.118     enami 		return (error);
   1132  1.168      fvdl 	}
   1133  1.154       leo 
   1134  1.154       leo 	case DIOCKLABEL:
   1135  1.154       leo 		if (*(int *)addr)
   1136  1.171    bouyer 			periph->periph_flags |= PERIPH_KEEP_LABEL;
   1137  1.154       leo 		else
   1138  1.171    bouyer 			periph->periph_flags &= ~PERIPH_KEEP_LABEL;
   1139  1.154       leo 		return (0);
   1140   1.25   mycroft 
   1141    1.3   deraadt 	case DIOCWLABEL:
   1142    1.3   deraadt 		if ((flag & FWRITE) == 0)
   1143  1.118     enami 			return (EBADF);
   1144   1.37   mycroft 		if (*(int *)addr)
   1145   1.37   mycroft 			sd->flags |= SDF_WLABEL;
   1146   1.37   mycroft 		else
   1147   1.37   mycroft 			sd->flags &= ~SDF_WLABEL;
   1148  1.118     enami 		return (0);
   1149   1.86   thorpej 
   1150   1.86   thorpej 	case DIOCLOCK:
   1151  1.242    bouyer 		if (periph->periph_flags & PERIPH_REMOVABLE)
   1152  1.242    bouyer 			return (scsipi_prevent(periph,
   1153  1.242    bouyer 			    (*(int *)addr) ?
   1154  1.242    bouyer 			    SPAMR_PREVENT_DT : SPAMR_ALLOW, 0));
   1155  1.242    bouyer 		else
   1156  1.242    bouyer 			return (ENOTTY);
   1157  1.214        pk 
   1158   1.86   thorpej 	case DIOCEJECT:
   1159  1.171    bouyer 		if ((periph->periph_flags & PERIPH_REMOVABLE) == 0)
   1160  1.142    bouyer 			return (ENOTTY);
   1161  1.142    bouyer 		if (*(int *)addr == 0) {
   1162  1.142    bouyer 			/*
   1163  1.142    bouyer 			 * Don't force eject: check that we are the only
   1164  1.142    bouyer 			 * partition open. If so, unlock it.
   1165  1.142    bouyer 			 */
   1166  1.142    bouyer 			if ((sd->sc_dk.dk_openmask & ~(1 << part)) == 0 &&
   1167  1.142    bouyer 			    sd->sc_dk.dk_bopenmask + sd->sc_dk.dk_copenmask ==
   1168  1.142    bouyer 			    sd->sc_dk.dk_openmask) {
   1169  1.236   thorpej 				error = scsipi_prevent(periph, SPAMR_ALLOW,
   1170  1.149   thorpej 				    XS_CTL_IGNORE_NOT_READY);
   1171  1.142    bouyer 				if (error)
   1172  1.142    bouyer 					return (error);
   1173  1.142    bouyer 			} else {
   1174  1.142    bouyer 				return (EBUSY);
   1175  1.142    bouyer 			}
   1176  1.142    bouyer 		}
   1177  1.142    bouyer 		/* FALLTHROUGH */
   1178  1.142    bouyer 	case ODIOCEJECT:
   1179  1.171    bouyer 		return ((periph->periph_flags & PERIPH_REMOVABLE) == 0 ?
   1180  1.171    bouyer 		    ENOTTY : scsipi_start(periph, SSS_STOP|SSS_LOEJ, 0));
   1181   1.25   mycroft 
   1182  1.119   thorpej 	case DIOCGDEFLABEL:
   1183  1.119   thorpej 		sdgetdefaultlabel(sd, (struct disklabel *)addr);
   1184  1.119   thorpej 		return (0);
   1185  1.168      fvdl 
   1186  1.168      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1187  1.168      fvdl 	case ODIOCGDEFLABEL:
   1188  1.192      fvdl 		newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1189  1.192      fvdl 		if (newlabel == NULL)
   1190  1.192      fvdl 			return EIO;
   1191  1.192      fvdl 		sdgetdefaultlabel(sd, newlabel);
   1192  1.192      fvdl 		if (newlabel->d_npartitions <= OLDMAXPARTITIONS)
   1193  1.192      fvdl 			memcpy(addr, newlabel, sizeof (struct olddisklabel));
   1194  1.192      fvdl 		else
   1195  1.192      fvdl 			error = ENOTTY;
   1196  1.192      fvdl 		free(newlabel, M_TEMP);
   1197  1.192      fvdl 		return error;
   1198  1.168      fvdl #endif
   1199  1.181   thorpej 
   1200  1.181   thorpej 	case DIOCGCACHE:
   1201  1.209   mycroft 		return (sd_getcache(sd, (int *) addr));
   1202  1.181   thorpej 
   1203  1.181   thorpej 	case DIOCSCACHE:
   1204  1.181   thorpej 		if ((flag & FWRITE) == 0)
   1205  1.181   thorpej 			return (EBADF);
   1206  1.209   mycroft 		return (sd_setcache(sd, *(int *) addr));
   1207  1.181   thorpej 
   1208  1.181   thorpej 	case DIOCCACHESYNC:
   1209  1.181   thorpej 		/*
   1210  1.193       wiz 		 * XXX Do we really need to care about having a writable
   1211  1.181   thorpej 		 * file descriptor here?
   1212  1.181   thorpej 		 */
   1213  1.181   thorpej 		if ((flag & FWRITE) == 0)
   1214  1.181   thorpej 			return (EBADF);
   1215  1.209   mycroft 		if (((sd->flags & SDF_DIRTY) != 0 || *(int *)addr != 0)) {
   1216  1.209   mycroft 			error = sd_flush(sd, 0);
   1217  1.181   thorpej 			if (error)
   1218  1.181   thorpej 				sd->flags &= ~SDF_FLUSHING;
   1219  1.181   thorpej 			else
   1220  1.181   thorpej 				sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY);
   1221  1.302  kiyohara 		}
   1222  1.181   thorpej 		return (error);
   1223  1.119   thorpej 
   1224  1.227   thorpej 	case DIOCAWEDGE:
   1225  1.227   thorpej 	    {
   1226  1.227   thorpej 	    	struct dkwedge_info *dkw = (void *) addr;
   1227  1.227   thorpej 
   1228  1.227   thorpej 		if ((flag & FWRITE) == 0)
   1229  1.227   thorpej 			return (EBADF);
   1230  1.227   thorpej 
   1231  1.227   thorpej 		/* If the ioctl happens here, the parent is us. */
   1232  1.275  drochner 		strlcpy(dkw->dkw_parent, device_xname(sd->sc_dev),
   1233  1.275  drochner 			sizeof(dkw->dkw_parent));
   1234  1.227   thorpej 		return (dkwedge_add(dkw));
   1235  1.227   thorpej 	    }
   1236  1.237     perry 
   1237  1.227   thorpej 	case DIOCDWEDGE:
   1238  1.227   thorpej 	    {
   1239  1.227   thorpej 	    	struct dkwedge_info *dkw = (void *) addr;
   1240  1.227   thorpej 
   1241  1.227   thorpej 		if ((flag & FWRITE) == 0)
   1242  1.227   thorpej 			return (EBADF);
   1243  1.227   thorpej 
   1244  1.227   thorpej 		/* If the ioctl happens here, the parent is us. */
   1245  1.275  drochner 		strlcpy(dkw->dkw_parent, device_xname(sd->sc_dev),
   1246  1.275  drochner 			sizeof(dkw->dkw_parent));
   1247  1.227   thorpej 		return (dkwedge_del(dkw));
   1248  1.227   thorpej 	    }
   1249  1.237     perry 
   1250  1.227   thorpej 	case DIOCLWEDGES:
   1251  1.227   thorpej 	    {
   1252  1.227   thorpej 	    	struct dkwedge_list *dkwl = (void *) addr;
   1253  1.227   thorpej 
   1254  1.244  christos 		return (dkwedge_list(&sd->sc_dk, dkwl, l));
   1255  1.227   thorpej 	    }
   1256  1.227   thorpej 
   1257  1.293  jakllsch 	case DIOCGSTRATEGY:
   1258  1.293  jakllsch 	    {
   1259  1.293  jakllsch 		struct disk_strategy *dks = addr;
   1260  1.293  jakllsch 
   1261  1.293  jakllsch 		s = splbio();
   1262  1.293  jakllsch 		strlcpy(dks->dks_name, bufq_getstrategyname(sd->buf_queue),
   1263  1.293  jakllsch 		    sizeof(dks->dks_name));
   1264  1.293  jakllsch 		splx(s);
   1265  1.293  jakllsch 		dks->dks_paramlen = 0;
   1266  1.293  jakllsch 
   1267  1.293  jakllsch 		return 0;
   1268  1.293  jakllsch 	    }
   1269  1.293  jakllsch 
   1270  1.293  jakllsch 	case DIOCSSTRATEGY:
   1271  1.293  jakllsch 	    {
   1272  1.293  jakllsch 		struct disk_strategy *dks = addr;
   1273  1.293  jakllsch 		struct bufq_state *new;
   1274  1.293  jakllsch 		struct bufq_state *old;
   1275  1.293  jakllsch 
   1276  1.293  jakllsch 		if ((flag & FWRITE) == 0) {
   1277  1.293  jakllsch 			return EBADF;
   1278  1.293  jakllsch 		}
   1279  1.293  jakllsch 
   1280  1.293  jakllsch 		if (dks->dks_param != NULL) {
   1281  1.293  jakllsch 			return EINVAL;
   1282  1.293  jakllsch 		}
   1283  1.293  jakllsch 		dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */
   1284  1.293  jakllsch 		error = bufq_alloc(&new, dks->dks_name,
   1285  1.293  jakllsch 		    BUFQ_EXACT|BUFQ_SORT_RAWBLOCK);
   1286  1.293  jakllsch 		if (error) {
   1287  1.293  jakllsch 			return error;
   1288  1.293  jakllsch 		}
   1289  1.293  jakllsch 		s = splbio();
   1290  1.293  jakllsch 		old = sd->buf_queue;
   1291  1.293  jakllsch 		bufq_move(new, old);
   1292  1.293  jakllsch 		sd->buf_queue = new;
   1293  1.293  jakllsch 		splx(s);
   1294  1.293  jakllsch 		bufq_free(old);
   1295  1.293  jakllsch 
   1296  1.293  jakllsch 		return 0;
   1297  1.293  jakllsch 	    }
   1298  1.293  jakllsch 
   1299    1.1       cgd 	default:
   1300  1.142    bouyer 		if (part != RAW_PART)
   1301  1.118     enami 			return (ENOTTY);
   1302  1.244  christos 		return (scsipi_do_ioctl(periph, dev, cmd, addr, flag, l));
   1303   1.25   mycroft 	}
   1304   1.45   mycroft 
   1305   1.25   mycroft #ifdef DIAGNOSTIC
   1306   1.25   mycroft 	panic("sdioctl: impossible");
   1307   1.25   mycroft #endif
   1308    1.1       cgd }
   1309    1.1       cgd 
   1310  1.220   thorpej static void
   1311  1.220   thorpej sdgetdefaultlabel(struct sd_softc *sd, struct disklabel *lp)
   1312    1.1       cgd {
   1313    1.1       cgd 
   1314  1.178   thorpej 	memset(lp, 0, sizeof(struct disklabel));
   1315   1.25   mycroft 
   1316   1.74   mycroft 	lp->d_secsize = sd->params.blksize;
   1317   1.74   mycroft 	lp->d_ntracks = sd->params.heads;
   1318   1.74   mycroft 	lp->d_nsectors = sd->params.sectors;
   1319   1.74   mycroft 	lp->d_ncylinders = sd->params.cyls;
   1320   1.74   mycroft 	lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
   1321    1.1       cgd 
   1322  1.298    bouyer 	switch (SCSIPI_BUSTYPE_TYPE(scsipi_periph_bustype(sd->sc_periph))) {
   1323  1.171    bouyer 	case SCSIPI_BUSTYPE_SCSI:
   1324  1.131  drochner 		lp->d_type = DTYPE_SCSI;
   1325  1.131  drochner 		break;
   1326  1.171    bouyer 	case SCSIPI_BUSTYPE_ATAPI:
   1327  1.131  drochner 		lp->d_type = DTYPE_ATAPI;
   1328  1.131  drochner 		break;
   1329  1.131  drochner 	}
   1330  1.210   mycroft 	/*
   1331  1.210   mycroft 	 * XXX
   1332  1.210   mycroft 	 * We could probe the mode pages to figure out what kind of disc it is.
   1333  1.210   mycroft 	 * Is this worthwhile?
   1334  1.210   mycroft 	 */
   1335  1.257  drochner 	strncpy(lp->d_typename, sd->name, 16);
   1336   1.74   mycroft 	strncpy(lp->d_packname, "fictitious", 16);
   1337  1.299  jakllsch 	if (sd->params.disksize > UINT32_MAX)
   1338  1.299  jakllsch 		lp->d_secperunit = UINT32_MAX;
   1339  1.299  jakllsch 	else
   1340  1.299  jakllsch 		lp->d_secperunit = sd->params.disksize;
   1341  1.124       cgd 	lp->d_rpm = sd->params.rot_rate;
   1342   1.74   mycroft 	lp->d_interleave = 1;
   1343  1.210   mycroft 	lp->d_flags = sd->sc_periph->periph_flags & PERIPH_REMOVABLE ?
   1344  1.210   mycroft 	    D_REMOVABLE : 0;
   1345   1.74   mycroft 
   1346   1.74   mycroft 	lp->d_partitions[RAW_PART].p_offset = 0;
   1347  1.255       scw 	lp->d_partitions[RAW_PART].p_size = lp->d_secperunit;
   1348   1.74   mycroft 	lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED;
   1349   1.74   mycroft 	lp->d_npartitions = RAW_PART + 1;
   1350   1.74   mycroft 
   1351   1.74   mycroft 	lp->d_magic = DISKMAGIC;
   1352   1.74   mycroft 	lp->d_magic2 = DISKMAGIC;
   1353   1.74   mycroft 	lp->d_checksum = dkcksum(lp);
   1354  1.119   thorpej }
   1355  1.119   thorpej 
   1356  1.119   thorpej 
   1357  1.119   thorpej /*
   1358  1.119   thorpej  * Load the label information on the named device
   1359  1.119   thorpej  */
   1360  1.248   nathanw static int
   1361  1.220   thorpej sdgetdisklabel(struct sd_softc *sd)
   1362  1.119   thorpej {
   1363  1.119   thorpej 	struct disklabel *lp = sd->sc_dk.dk_label;
   1364  1.198       dsl 	const char *errstring;
   1365  1.119   thorpej 
   1366  1.178   thorpej 	memset(sd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel));
   1367  1.119   thorpej 
   1368  1.119   thorpej 	sdgetdefaultlabel(sd, lp);
   1369  1.119   thorpej 
   1370  1.119   thorpej 	if (lp->d_secpercyl == 0) {
   1371  1.119   thorpej 		lp->d_secpercyl = 100;
   1372  1.119   thorpej 		/* as long as it's not 0 - readdisklabel divides by it (?) */
   1373  1.119   thorpej 	}
   1374   1.45   mycroft 
   1375   1.25   mycroft 	/*
   1376   1.25   mycroft 	 * Call the generic disklabel extraction routine
   1377   1.25   mycroft 	 */
   1378  1.275  drochner 	errstring = readdisklabel(MAKESDDEV(0, device_unit(sd->sc_dev),
   1379  1.246   thorpej 	    RAW_PART), sdstrategy, lp, sd->sc_dk.dk_cpulabel);
   1380   1.87  christos 	if (errstring) {
   1381  1.275  drochner 		aprint_error_dev(sd->sc_dev, "%s\n", errstring);
   1382  1.248   nathanw 		return EIO;
   1383    1.1       cgd 	}
   1384  1.248   nathanw 	return 0;
   1385  1.132   thorpej }
   1386  1.132   thorpej 
   1387  1.279    dyoung static bool
   1388  1.279    dyoung sd_shutdown(device_t self, int how)
   1389  1.132   thorpej {
   1390  1.279    dyoung 	struct sd_softc *sd = device_private(self);
   1391  1.132   thorpej 
   1392  1.132   thorpej 	/*
   1393  1.132   thorpej 	 * If the disk cache needs to be flushed, and the disk supports
   1394  1.132   thorpej 	 * it, flush it.  We're cold at this point, so we poll for
   1395  1.132   thorpej 	 * completion.
   1396  1.132   thorpej 	 */
   1397  1.209   mycroft 	if ((sd->flags & SDF_DIRTY) != 0) {
   1398  1.209   mycroft 		if (sd_flush(sd, XS_CTL_NOSLEEP|XS_CTL_POLL)) {
   1399  1.275  drochner 			aprint_error_dev(sd->sc_dev,
   1400  1.275  drochner 				"cache synchronization failed\n");
   1401  1.146   hannken 			sd->flags &= ~SDF_FLUSHING;
   1402  1.146   hannken 		} else
   1403  1.146   hannken 			sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY);
   1404  1.146   hannken 	}
   1405  1.279    dyoung 	return true;
   1406  1.270  drochner }
   1407  1.270  drochner 
   1408  1.270  drochner static bool
   1409  1.292    dyoung sd_suspend(device_t dv, const pmf_qual_t *qual)
   1410  1.270  drochner {
   1411  1.279    dyoung 	return sd_shutdown(dv, boothowto); /* XXX no need to poll */
   1412    1.1       cgd }
   1413    1.1       cgd 
   1414    1.3   deraadt /*
   1415  1.127    mjacob  * Check Errors
   1416  1.127    mjacob  */
   1417  1.220   thorpej static int
   1418  1.220   thorpej sd_interpret_sense(struct scsipi_xfer *xs)
   1419  1.127    mjacob {
   1420  1.171    bouyer 	struct scsipi_periph *periph = xs->xs_periph;
   1421  1.236   thorpej 	struct scsi_sense_data *sense = &xs->sense.scsi_sense;
   1422  1.275  drochner 	struct sd_softc *sd = device_private(periph->periph_dev);
   1423  1.171    bouyer 	int s, error, retval = EJUSTRETURN;
   1424  1.171    bouyer 
   1425  1.171    bouyer 	/*
   1426  1.171    bouyer 	 * If the periph is already recovering, just do the normal
   1427  1.171    bouyer 	 * error processing.
   1428  1.171    bouyer 	 */
   1429  1.171    bouyer 	if (periph->periph_flags & PERIPH_RECOVERING)
   1430  1.171    bouyer 		return (retval);
   1431  1.127    mjacob 
   1432  1.127    mjacob 	/*
   1433  1.242    bouyer 	 * Ignore errors from accessing illegal fields (e.g. trying to
   1434  1.242    bouyer 	 * lock the door of a digicam, which doesn't have a door that
   1435  1.242    bouyer 	 * can be locked) for the SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL command.
   1436  1.242    bouyer 	 */
   1437  1.243    bouyer 	if (xs->cmd->opcode == SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL &&
   1438  1.243    bouyer 	    SSD_SENSE_KEY(sense->flags) == SKEY_ILLEGAL_REQUEST &&
   1439  1.243    bouyer 	    sense->asc == 0x24 &&
   1440  1.243    bouyer 	    sense->ascq == 0x00) { /* Illegal field in CDB */
   1441  1.249  drochner 		if (!(xs->xs_control & XS_CTL_SILENT)) {
   1442  1.249  drochner 			scsipi_printaddr(periph);
   1443  1.249  drochner 			printf("no door lock\n");
   1444  1.249  drochner 		}
   1445  1.249  drochner 		xs->xs_control |= XS_CTL_IGNORE_ILLEGAL_REQUEST;
   1446  1.249  drochner 		return (retval);
   1447  1.242    bouyer 	}
   1448  1.242    bouyer 
   1449  1.242    bouyer 
   1450  1.242    bouyer 
   1451  1.242    bouyer 	/*
   1452  1.127    mjacob 	 * If the device is not open yet, let the generic code handle it.
   1453  1.127    mjacob 	 */
   1454  1.171    bouyer 	if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0)
   1455  1.127    mjacob 		return (retval);
   1456  1.127    mjacob 
   1457  1.127    mjacob 	/*
   1458  1.127    mjacob 	 * If it isn't a extended or extended/deferred error, let
   1459  1.127    mjacob 	 * the generic code handle it.
   1460  1.127    mjacob 	 */
   1461  1.239  drochner 	if (SSD_RCODE(sense->response_code) != SSD_RCODE_CURRENT &&
   1462  1.239  drochner 	    SSD_RCODE(sense->response_code) != SSD_RCODE_DEFERRED)
   1463  1.127    mjacob 		return (retval);
   1464  1.127    mjacob 
   1465  1.236   thorpej 	if (SSD_SENSE_KEY(sense->flags) == SKEY_NOT_READY &&
   1466  1.236   thorpej 	    sense->asc == 0x4) {
   1467  1.236   thorpej 		if (sense->ascq == 0x01)	{
   1468  1.127    mjacob 			/*
   1469  1.171    bouyer 			 * Unit In The Process Of Becoming Ready.
   1470  1.127    mjacob 			 */
   1471  1.171    bouyer 			printf("%s: waiting for pack to spin up...\n",
   1472  1.275  drochner 			    device_xname(sd->sc_dev));
   1473  1.195   thorpej 			if (!callout_pending(&periph->periph_callout))
   1474  1.182    bouyer 				scsipi_periph_freeze(periph, 1);
   1475  1.171    bouyer 			callout_reset(&periph->periph_callout,
   1476  1.171    bouyer 			    5 * hz, scsipi_periph_timed_thaw, periph);
   1477  1.171    bouyer 			retval = ERESTART;
   1478  1.236   thorpej 		} else if (sense->ascq == 0x02) {
   1479  1.171    bouyer 			printf("%s: pack is stopped, restarting...\n",
   1480  1.275  drochner 			    device_xname(sd->sc_dev));
   1481  1.171    bouyer 			s = splbio();
   1482  1.171    bouyer 			periph->periph_flags |= PERIPH_RECOVERING;
   1483  1.171    bouyer 			splx(s);
   1484  1.171    bouyer 			error = scsipi_start(periph, SSS_START,
   1485  1.171    bouyer 			    XS_CTL_URGENT|XS_CTL_HEAD_TAG|
   1486  1.171    bouyer 			    XS_CTL_THAW_PERIPH|XS_CTL_FREEZE_PERIPH);
   1487  1.171    bouyer 			if (error) {
   1488  1.275  drochner 				aprint_error_dev(sd->sc_dev,
   1489  1.275  drochner 					"unable to restart pack\n");
   1490  1.171    bouyer 				retval = error;
   1491  1.171    bouyer 			} else
   1492  1.171    bouyer 				retval = ERESTART;
   1493  1.171    bouyer 			s = splbio();
   1494  1.171    bouyer 			periph->periph_flags &= ~PERIPH_RECOVERING;
   1495  1.171    bouyer 			splx(s);
   1496  1.127    mjacob 		}
   1497  1.127    mjacob 	}
   1498  1.236   thorpej 	if (SSD_SENSE_KEY(sense->flags) == SKEY_MEDIUM_ERROR &&
   1499  1.236   thorpej 	    sense->asc == 0x31 &&
   1500  1.236   thorpej 	    sense->ascq == 0x00)	{ /* maybe for any asq ? */
   1501  1.217    bouyer 		/* Medium Format Corrupted */
   1502  1.217    bouyer 		retval = EFTYPE;
   1503  1.217    bouyer 	}
   1504  1.127    mjacob 	return (retval);
   1505  1.127    mjacob }
   1506  1.127    mjacob 
   1507    1.1       cgd 
   1508  1.220   thorpej static int
   1509  1.220   thorpej sdsize(dev_t dev)
   1510    1.1       cgd {
   1511   1.51   mycroft 	struct sd_softc *sd;
   1512  1.112        pk 	int part, unit, omask;
   1513   1.45   mycroft 	int size;
   1514    1.1       cgd 
   1515  1.112        pk 	unit = SDUNIT(dev);
   1516  1.274   tsutsui 	sd = device_lookup_private(&sd_cd, unit);
   1517  1.112        pk 	if (sd == NULL)
   1518  1.112        pk 		return (-1);
   1519  1.112        pk 
   1520  1.275  drochner 	if (!device_is_active(sd->sc_dev))
   1521  1.147   thorpej 		return (-1);
   1522  1.147   thorpej 
   1523   1.45   mycroft 	part = SDPART(dev);
   1524  1.112        pk 	omask = sd->sc_dk.dk_openmask & (1 << part);
   1525  1.112        pk 
   1526  1.112        pk 	if (omask == 0 && sdopen(dev, 0, S_IFBLK, NULL) != 0)
   1527  1.112        pk 		return (-1);
   1528  1.171    bouyer 	if ((sd->sc_periph->periph_flags & PERIPH_MEDIA_LOADED) == 0)
   1529  1.140    bouyer 		size = -1;
   1530  1.140    bouyer 	else if (sd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP)
   1531   1.45   mycroft 		size = -1;
   1532   1.45   mycroft 	else
   1533  1.113   thorpej 		size = sd->sc_dk.dk_label->d_partitions[part].p_size *
   1534  1.113   thorpej 		    (sd->sc_dk.dk_label->d_secsize / DEV_BSIZE);
   1535  1.112        pk 	if (omask == 0 && sdclose(dev, 0, S_IFBLK, NULL) != 0)
   1536  1.112        pk 		return (-1);
   1537  1.112        pk 	return (size);
   1538    1.3   deraadt }
   1539    1.3   deraadt 
   1540   1.71       cgd /* #define SD_DUMP_NOT_TRUSTED if you just want to watch */
   1541  1.116    bouyer static struct scsipi_xfer sx;
   1542   1.71       cgd static int sddoingadump;
   1543    1.3   deraadt 
   1544    1.3   deraadt /*
   1545   1.25   mycroft  * dump all of physical memory into the partition specified, starting
   1546   1.25   mycroft  * at offset 'dumplo' into the partition.
   1547    1.3   deraadt  */
   1548  1.220   thorpej static int
   1549  1.261  christos sddump(dev_t dev, daddr_t blkno, void *va, size_t size)
   1550   1.71       cgd {
   1551   1.71       cgd 	struct sd_softc *sd;	/* disk unit to do the I/O */
   1552   1.71       cgd 	struct disklabel *lp;	/* disk's disklabel */
   1553   1.71       cgd 	int	unit, part;
   1554   1.71       cgd 	int	sectorsize;	/* size of a disk sector */
   1555   1.71       cgd 	int	nsects;		/* number of sectors in partition */
   1556   1.71       cgd 	int	sectoff;	/* sector offset of partition */
   1557   1.71       cgd 	int	totwrt;		/* total number of sectors left to write */
   1558   1.71       cgd 	int	nwrt;		/* current number of sectors to write */
   1559  1.231   thorpej 	struct scsipi_rw_10 cmd;	/* write command */
   1560  1.116    bouyer 	struct scsipi_xfer *xs;	/* ... convenience */
   1561  1.176       chs 	struct scsipi_periph *periph;
   1562  1.176       chs 	struct scsipi_channel *chan;
   1563  1.147   thorpej 
   1564   1.71       cgd 	/* Check if recursive dump; if so, punt. */
   1565   1.71       cgd 	if (sddoingadump)
   1566  1.118     enami 		return (EFAULT);
   1567   1.71       cgd 
   1568   1.71       cgd 	/* Mark as active early. */
   1569   1.71       cgd 	sddoingadump = 1;
   1570    1.1       cgd 
   1571   1.71       cgd 	unit = SDUNIT(dev);	/* Decompose unit & partition. */
   1572   1.71       cgd 	part = SDPART(dev);
   1573    1.1       cgd 
   1574   1.71       cgd 	/* Check for acceptable drive number. */
   1575  1.274   tsutsui 	sd = device_lookup_private(&sd_cd, unit);
   1576  1.274   tsutsui 	if (sd == NULL)
   1577  1.118     enami 		return (ENXIO);
   1578  1.152    bouyer 
   1579  1.275  drochner 	if (!device_is_active(sd->sc_dev))
   1580  1.152    bouyer 		return (ENODEV);
   1581  1.176       chs 
   1582  1.176       chs 	periph = sd->sc_periph;
   1583  1.176       chs 	chan = periph->periph_channel;
   1584    1.3   deraadt 
   1585   1.71       cgd 	/* Make sure it was initialized. */
   1586  1.177    bouyer 	if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0)
   1587  1.118     enami 		return (ENXIO);
   1588   1.25   mycroft 
   1589   1.71       cgd 	/* Convert to disk sectors.  Request must be a multiple of size. */
   1590   1.84   thorpej 	lp = sd->sc_dk.dk_label;
   1591   1.71       cgd 	sectorsize = lp->d_secsize;
   1592   1.71       cgd 	if ((size % sectorsize) != 0)
   1593  1.118     enami 		return (EFAULT);
   1594   1.71       cgd 	totwrt = size / sectorsize;
   1595   1.71       cgd 	blkno = dbtob(blkno) / sectorsize;	/* blkno in DEV_BSIZE units */
   1596   1.25   mycroft 
   1597   1.71       cgd 	nsects = lp->d_partitions[part].p_size;
   1598   1.71       cgd 	sectoff = lp->d_partitions[part].p_offset;
   1599   1.25   mycroft 
   1600   1.71       cgd 	/* Check transfer bounds against partition size. */
   1601   1.71       cgd 	if ((blkno < 0) || ((blkno + totwrt) > nsects))
   1602  1.118     enami 		return (EINVAL);
   1603   1.25   mycroft 
   1604   1.71       cgd 	/* Offset block number to start of partition. */
   1605   1.71       cgd 	blkno += sectoff;
   1606   1.71       cgd 
   1607   1.71       cgd 	xs = &sx;
   1608    1.3   deraadt 
   1609   1.71       cgd 	while (totwrt > 0) {
   1610   1.71       cgd 		nwrt = totwrt;		/* XXX */
   1611   1.71       cgd #ifndef	SD_DUMP_NOT_TRUSTED
   1612   1.25   mycroft 		/*
   1613   1.25   mycroft 		 *  Fill out the scsi command
   1614   1.25   mycroft 		 */
   1615  1.178   thorpej 		memset(&cmd, 0, sizeof(cmd));
   1616  1.231   thorpej 		cmd.opcode = WRITE_10;
   1617   1.91   mycroft 		_lto4b(blkno, cmd.addr);
   1618   1.91   mycroft 		_lto2b(nwrt, cmd.length);
   1619   1.25   mycroft 		/*
   1620  1.116    bouyer 		 * Fill out the scsipi_xfer structure
   1621   1.25   mycroft 		 *    Note: we cannot sleep as we may be an interrupt
   1622  1.122   thorpej 		 * don't use scsipi_command() as it may want to wait
   1623  1.122   thorpej 		 * for an xs.
   1624   1.25   mycroft 		 */
   1625  1.178   thorpej 		memset(xs, 0, sizeof(sx));
   1626  1.149   thorpej 		xs->xs_control |= XS_CTL_NOSLEEP | XS_CTL_POLL |
   1627  1.149   thorpej 		    XS_CTL_DATA_OUT;
   1628  1.149   thorpej 		xs->xs_status = 0;
   1629  1.171    bouyer 		xs->xs_periph = periph;
   1630  1.171    bouyer 		xs->xs_retries = SDRETRIES;
   1631   1.25   mycroft 		xs->timeout = 10000;	/* 10000 millisecs for a disk ! */
   1632  1.116    bouyer 		xs->cmd = (struct scsipi_generic *)&cmd;
   1633   1.25   mycroft 		xs->cmdlen = sizeof(cmd);
   1634   1.71       cgd 		xs->resid = nwrt * sectorsize;
   1635   1.25   mycroft 		xs->error = XS_NOERROR;
   1636   1.25   mycroft 		xs->bp = 0;
   1637   1.71       cgd 		xs->data = va;
   1638   1.71       cgd 		xs->datalen = nwrt * sectorsize;
   1639  1.266    bouyer 		callout_init(&xs->xs_callout, 0);
   1640    1.1       cgd 
   1641   1.25   mycroft 		/*
   1642   1.25   mycroft 		 * Pass all this info to the scsi driver.
   1643   1.25   mycroft 		 */
   1644  1.171    bouyer 		scsipi_adapter_request(chan, ADAPTER_REQ_RUN_XFER, xs);
   1645  1.171    bouyer 		if ((xs->xs_status & XS_STS_DONE) == 0 ||
   1646  1.171    bouyer 		    xs->error != XS_NOERROR)
   1647  1.171    bouyer 			return (EIO);
   1648   1.71       cgd #else	/* SD_DUMP_NOT_TRUSTED */
   1649   1.71       cgd 		/* Let's just talk about this first... */
   1650  1.104  christos 		printf("sd%d: dump addr 0x%x, blk %d\n", unit, va, blkno);
   1651   1.71       cgd 		delay(500 * 1000);	/* half a second */
   1652   1.71       cgd #endif	/* SD_DUMP_NOT_TRUSTED */
   1653   1.25   mycroft 
   1654   1.25   mycroft 		/* update block count */
   1655   1.71       cgd 		totwrt -= nwrt;
   1656   1.71       cgd 		blkno += nwrt;
   1657  1.261  christos 		va = (char *)va + sectorsize * nwrt;
   1658   1.25   mycroft 	}
   1659   1.71       cgd 	sddoingadump = 0;
   1660  1.118     enami 	return (0);
   1661  1.209   mycroft }
   1662  1.209   mycroft 
   1663  1.220   thorpej static int
   1664  1.235   reinoud sd_mode_sense(struct sd_softc *sd, u_int8_t byte2, void *sense, size_t size,
   1665  1.220   thorpej     int page, int flags, int *big)
   1666  1.209   mycroft {
   1667  1.209   mycroft 
   1668  1.209   mycroft 	if ((sd->sc_periph->periph_quirks & PQUIRK_ONLYBIG) &&
   1669  1.209   mycroft 	    !(sd->sc_periph->periph_quirks & PQUIRK_NOBIGMODESENSE)) {
   1670  1.209   mycroft 		*big = 1;
   1671  1.209   mycroft 		return scsipi_mode_sense_big(sd->sc_periph, byte2, page, sense,
   1672  1.236   thorpej 		    size + sizeof(struct scsi_mode_parameter_header_10),
   1673  1.290     rmind 		    flags, SDRETRIES, 6000);
   1674  1.209   mycroft 	} else {
   1675  1.209   mycroft 		*big = 0;
   1676  1.209   mycroft 		return scsipi_mode_sense(sd->sc_periph, byte2, page, sense,
   1677  1.236   thorpej 		    size + sizeof(struct scsi_mode_parameter_header_6),
   1678  1.290     rmind 		    flags, SDRETRIES, 6000);
   1679  1.209   mycroft 	}
   1680  1.209   mycroft }
   1681  1.209   mycroft 
   1682  1.220   thorpej static int
   1683  1.235   reinoud sd_mode_select(struct sd_softc *sd, u_int8_t byte2, void *sense, size_t size,
   1684  1.220   thorpej     int flags, int big)
   1685  1.209   mycroft {
   1686  1.209   mycroft 
   1687  1.209   mycroft 	if (big) {
   1688  1.236   thorpej 		struct scsi_mode_parameter_header_10 *header = sense;
   1689  1.209   mycroft 
   1690  1.209   mycroft 		_lto2b(0, header->data_length);
   1691  1.209   mycroft 		return scsipi_mode_select_big(sd->sc_periph, byte2, sense,
   1692  1.236   thorpej 		    size + sizeof(struct scsi_mode_parameter_header_10),
   1693  1.290     rmind 		    flags, SDRETRIES, 6000);
   1694  1.209   mycroft 	} else {
   1695  1.236   thorpej 		struct scsi_mode_parameter_header_6 *header = sense;
   1696  1.209   mycroft 
   1697  1.209   mycroft 		header->data_length = 0;
   1698  1.209   mycroft 		return scsipi_mode_select(sd->sc_periph, byte2, sense,
   1699  1.236   thorpej 		    size + sizeof(struct scsi_mode_parameter_header_6),
   1700  1.290     rmind 		    flags, SDRETRIES, 6000);
   1701  1.209   mycroft 	}
   1702  1.209   mycroft }
   1703  1.209   mycroft 
   1704  1.256     itohy /*
   1705  1.256     itohy  * sd_validate_blksize:
   1706  1.256     itohy  *
   1707  1.256     itohy  *	Validate the block size.  Print error if periph is specified,
   1708  1.256     itohy  */
   1709  1.256     itohy static int
   1710  1.256     itohy sd_validate_blksize(struct scsipi_periph *periph, int len)
   1711  1.256     itohy {
   1712  1.256     itohy 
   1713  1.256     itohy 	switch (len) {
   1714  1.256     itohy 	case 256:
   1715  1.256     itohy 	case 512:
   1716  1.256     itohy 	case 1024:
   1717  1.256     itohy 	case 2048:
   1718  1.256     itohy 	case 4096:
   1719  1.256     itohy 		return 1;
   1720  1.256     itohy 	}
   1721  1.256     itohy 
   1722  1.256     itohy 	if (periph) {
   1723  1.256     itohy 		scsipi_printaddr(periph);
   1724  1.256     itohy 		printf("%s sector size: 0x%x.  Defaulting to %d bytes.\n",
   1725  1.256     itohy 		    (len ^ (1 << (ffs(len) - 1))) ?
   1726  1.256     itohy 		    "preposterous" : "unsupported",
   1727  1.256     itohy 		    len, SD_DEFAULT_BLKSIZE);
   1728  1.256     itohy 	}
   1729  1.256     itohy 
   1730  1.256     itohy 	return 0;
   1731  1.256     itohy }
   1732  1.256     itohy 
   1733  1.256     itohy /*
   1734  1.256     itohy  * sd_read_capacity:
   1735  1.256     itohy  *
   1736  1.256     itohy  *	Find out from the device what its capacity is.
   1737  1.256     itohy  */
   1738  1.256     itohy static u_int64_t
   1739  1.256     itohy sd_read_capacity(struct scsipi_periph *periph, int *blksize, int flags)
   1740  1.256     itohy {
   1741  1.256     itohy 	union {
   1742  1.256     itohy 		struct scsipi_read_capacity_10 cmd;
   1743  1.256     itohy 		struct scsipi_read_capacity_16 cmd16;
   1744  1.256     itohy 	} cmd;
   1745  1.256     itohy 	union {
   1746  1.256     itohy 		struct scsipi_read_capacity_10_data data;
   1747  1.256     itohy 		struct scsipi_read_capacity_16_data data16;
   1748  1.265   tsutsui 	} *datap;
   1749  1.265   tsutsui 	uint64_t rv;
   1750  1.256     itohy 
   1751  1.256     itohy 	memset(&cmd, 0, sizeof(cmd));
   1752  1.256     itohy 	cmd.cmd.opcode = READ_CAPACITY_10;
   1753  1.256     itohy 
   1754  1.256     itohy 	/*
   1755  1.265   tsutsui 	 * Don't allocate data buffer on stack;
   1756  1.265   tsutsui 	 * The lower driver layer might use the same stack and
   1757  1.265   tsutsui 	 * if it uses region which is in the same cacheline,
   1758  1.265   tsutsui 	 * cache flush ops against the data buffer won't work properly.
   1759  1.265   tsutsui 	 */
   1760  1.265   tsutsui 	datap = malloc(sizeof(*datap), M_TEMP, M_WAITOK);
   1761  1.265   tsutsui 	if (datap == NULL)
   1762  1.265   tsutsui 		return 0;
   1763  1.265   tsutsui 
   1764  1.265   tsutsui 	/*
   1765  1.256     itohy 	 * If the command works, interpret the result as a 4 byte
   1766  1.256     itohy 	 * number of blocks
   1767  1.256     itohy 	 */
   1768  1.265   tsutsui 	rv = 0;
   1769  1.265   tsutsui 	memset(datap, 0, sizeof(datap->data));
   1770  1.256     itohy 	if (scsipi_command(periph, (void *)&cmd.cmd, sizeof(cmd.cmd),
   1771  1.265   tsutsui 	    (void *)datap, sizeof(datap->data), SCSIPIRETRIES, 20000, NULL,
   1772  1.265   tsutsui 	    flags | XS_CTL_DATA_IN | XS_CTL_SILENT) != 0)
   1773  1.265   tsutsui 		goto out;
   1774  1.265   tsutsui 
   1775  1.265   tsutsui 	if (_4btol(datap->data.addr) != 0xffffffff) {
   1776  1.265   tsutsui 		*blksize = _4btol(datap->data.length);
   1777  1.265   tsutsui 		rv = _4btol(datap->data.addr) + 1;
   1778  1.265   tsutsui 		goto out;
   1779  1.256     itohy 	}
   1780  1.256     itohy 
   1781  1.256     itohy 	/*
   1782  1.256     itohy 	 * Device is larger than can be reflected by READ CAPACITY (10).
   1783  1.256     itohy 	 * Try READ CAPACITY (16).
   1784  1.256     itohy 	 */
   1785  1.256     itohy 
   1786  1.256     itohy 	memset(&cmd, 0, sizeof(cmd));
   1787  1.256     itohy 	cmd.cmd16.opcode = READ_CAPACITY_16;
   1788  1.256     itohy 	cmd.cmd16.byte2 = SRC16_SERVICE_ACTION;
   1789  1.265   tsutsui 	_lto4b(sizeof(datap->data16), cmd.cmd16.len);
   1790  1.256     itohy 
   1791  1.265   tsutsui 	memset(datap, 0, sizeof(datap->data16));
   1792  1.256     itohy 	if (scsipi_command(periph, (void *)&cmd.cmd16, sizeof(cmd.cmd16),
   1793  1.265   tsutsui 	    (void *)datap, sizeof(datap->data16), SCSIPIRETRIES, 20000, NULL,
   1794  1.265   tsutsui 	    flags | XS_CTL_DATA_IN | XS_CTL_SILENT) != 0)
   1795  1.265   tsutsui 		goto out;
   1796  1.265   tsutsui 
   1797  1.265   tsutsui 	*blksize = _4btol(datap->data16.length);
   1798  1.265   tsutsui 	rv = _8btol(datap->data16.addr) + 1;
   1799  1.265   tsutsui 
   1800  1.265   tsutsui  out:
   1801  1.265   tsutsui 	free(datap, M_TEMP);
   1802  1.265   tsutsui 	return rv;
   1803  1.256     itohy }
   1804  1.256     itohy 
   1805  1.220   thorpej static int
   1806  1.220   thorpej sd_get_simplifiedparms(struct sd_softc *sd, struct disk_parms *dp, int flags)
   1807  1.209   mycroft {
   1808  1.209   mycroft 	struct {
   1809  1.236   thorpej 		struct scsi_mode_parameter_header_6 header;
   1810  1.209   mycroft 		/* no block descriptor */
   1811  1.235   reinoud 		u_int8_t pg_code; /* page code (should be 6) */
   1812  1.235   reinoud 		u_int8_t pg_length; /* page length (should be 11) */
   1813  1.235   reinoud 		u_int8_t wcd; /* bit0: cache disable */
   1814  1.235   reinoud 		u_int8_t lbs[2]; /* logical block size */
   1815  1.235   reinoud 		u_int8_t size[5]; /* number of log. blocks */
   1816  1.235   reinoud 		u_int8_t pp; /* power/performance */
   1817  1.235   reinoud 		u_int8_t flags;
   1818  1.235   reinoud 		u_int8_t resvd;
   1819  1.209   mycroft 	} scsipi_sense;
   1820  1.256     itohy 	u_int64_t blocks;
   1821  1.251       scw 	int error, blksize;
   1822  1.209   mycroft 
   1823  1.209   mycroft 	/*
   1824  1.256     itohy 	 * sd_read_capacity (ie "read capacity") and mode sense page 6
   1825  1.209   mycroft 	 * give the same information. Do both for now, and check
   1826  1.209   mycroft 	 * for consistency.
   1827  1.209   mycroft 	 * XXX probably differs for removable media
   1828  1.209   mycroft 	 */
   1829  1.256     itohy 	dp->blksize = SD_DEFAULT_BLKSIZE;
   1830  1.256     itohy 	if ((blocks = sd_read_capacity(sd->sc_periph, &blksize, flags)) == 0)
   1831  1.209   mycroft 		return (SDGP_RESULT_OFFLINE);		/* XXX? */
   1832  1.209   mycroft 
   1833  1.209   mycroft 	error = scsipi_mode_sense(sd->sc_periph, SMS_DBD, 6,
   1834  1.209   mycroft 	    &scsipi_sense.header, sizeof(scsipi_sense),
   1835  1.290     rmind 	    flags, SDRETRIES, 6000);
   1836  1.209   mycroft 
   1837  1.209   mycroft 	if (error != 0)
   1838  1.209   mycroft 		return (SDGP_RESULT_OFFLINE);		/* XXX? */
   1839  1.209   mycroft 
   1840  1.256     itohy 	dp->blksize = blksize;
   1841  1.256     itohy 	if (!sd_validate_blksize(NULL, dp->blksize))
   1842  1.256     itohy 		dp->blksize = _2btol(scsipi_sense.lbs);
   1843  1.256     itohy 	if (!sd_validate_blksize(sd->sc_periph, dp->blksize))
   1844  1.256     itohy 		dp->blksize = SD_DEFAULT_BLKSIZE;
   1845  1.209   mycroft 
   1846  1.209   mycroft 	/*
   1847  1.209   mycroft 	 * Create a pseudo-geometry.
   1848  1.209   mycroft 	 */
   1849  1.209   mycroft 	dp->heads = 64;
   1850  1.209   mycroft 	dp->sectors = 32;
   1851  1.256     itohy 	dp->cyls = blocks / (dp->heads * dp->sectors);
   1852  1.209   mycroft 	dp->disksize = _5btol(scsipi_sense.size);
   1853  1.256     itohy 	if (dp->disksize <= UINT32_MAX && dp->disksize != blocks) {
   1854  1.209   mycroft 		printf("RBC size: mode sense=%llu, get cap=%llu\n",
   1855  1.209   mycroft 		       (unsigned long long)dp->disksize,
   1856  1.256     itohy 		       (unsigned long long)blocks);
   1857  1.256     itohy 		dp->disksize = blocks;
   1858  1.209   mycroft 	}
   1859  1.209   mycroft 	dp->disksize512 = (dp->disksize * dp->blksize) / DEV_BSIZE;
   1860  1.209   mycroft 
   1861  1.209   mycroft 	return (SDGP_RESULT_OK);
   1862  1.209   mycroft }
   1863  1.209   mycroft 
   1864  1.209   mycroft /*
   1865  1.209   mycroft  * Get the scsi driver to send a full inquiry to the * device and use the
   1866  1.209   mycroft  * results to fill out the disk parameter structure.
   1867  1.209   mycroft  */
   1868  1.220   thorpej static int
   1869  1.220   thorpej sd_get_capacity(struct sd_softc *sd, struct disk_parms *dp, int flags)
   1870  1.209   mycroft {
   1871  1.256     itohy 	u_int64_t blocks;
   1872  1.251       scw 	int error, blksize;
   1873  1.209   mycroft #if 0
   1874  1.209   mycroft 	int i;
   1875  1.235   reinoud 	u_int8_t *p;
   1876  1.209   mycroft #endif
   1877  1.209   mycroft 
   1878  1.256     itohy 	dp->disksize = blocks = sd_read_capacity(sd->sc_periph, &blksize,
   1879  1.253       scw 	    flags);
   1880  1.256     itohy 	if (blocks == 0) {
   1881  1.218   mycroft 		struct scsipi_read_format_capacities cmd;
   1882  1.209   mycroft 		struct {
   1883  1.209   mycroft 			struct scsipi_capacity_list_header header;
   1884  1.209   mycroft 			struct scsipi_capacity_descriptor desc;
   1885  1.269     perry 		} __packed data;
   1886  1.209   mycroft 
   1887  1.218   mycroft 		memset(&cmd, 0, sizeof(cmd));
   1888  1.218   mycroft 		memset(&data, 0, sizeof(data));
   1889  1.218   mycroft 		cmd.opcode = READ_FORMAT_CAPACITIES;
   1890  1.218   mycroft 		_lto2b(sizeof(data), cmd.length);
   1891  1.218   mycroft 
   1892  1.226   mycroft 		error = scsipi_command(sd->sc_periph,
   1893  1.223    bouyer 		    (void *)&cmd, sizeof(cmd), (void *)&data, sizeof(data),
   1894  1.223    bouyer 		    SDRETRIES, 20000, NULL,
   1895  1.290     rmind 		    flags | XS_CTL_DATA_IN);
   1896  1.217    bouyer 		if (error == EFTYPE) {
   1897  1.217    bouyer 			/* Medium Format Corrupted, handle as not formatted */
   1898  1.217    bouyer 			return (SDGP_RESULT_UNFORMATTED);
   1899  1.217    bouyer 		}
   1900  1.218   mycroft 		if (error || data.header.length == 0)
   1901  1.209   mycroft 			return (SDGP_RESULT_OFFLINE);
   1902  1.209   mycroft 
   1903  1.209   mycroft #if 0
   1904  1.218   mycroft printf("rfc: length=%d\n", data.header.length);
   1905  1.218   mycroft printf("rfc result:"); for (i = sizeof(struct scsipi_capacity_list_header) + data.header.length, p = (void *)&data; i; i--, p++) printf(" %02x", *p); printf("\n");
   1906  1.209   mycroft #endif
   1907  1.218   mycroft 		switch (data.desc.byte5 & SCSIPI_CAP_DESC_CODE_MASK) {
   1908  1.209   mycroft 		case SCSIPI_CAP_DESC_CODE_RESERVED:
   1909  1.209   mycroft 		case SCSIPI_CAP_DESC_CODE_FORMATTED:
   1910  1.209   mycroft 			break;
   1911  1.209   mycroft 
   1912  1.209   mycroft 		case SCSIPI_CAP_DESC_CODE_UNFORMATTED:
   1913  1.209   mycroft 			return (SDGP_RESULT_UNFORMATTED);
   1914  1.209   mycroft 
   1915  1.209   mycroft 		case SCSIPI_CAP_DESC_CODE_NONE:
   1916  1.209   mycroft 			return (SDGP_RESULT_OFFLINE);
   1917  1.209   mycroft 		}
   1918  1.209   mycroft 
   1919  1.256     itohy 		dp->disksize = blocks = _4btol(data.desc.nblks);
   1920  1.256     itohy 		if (blocks == 0)
   1921  1.209   mycroft 			return (SDGP_RESULT_OFFLINE);		/* XXX? */
   1922  1.209   mycroft 
   1923  1.256     itohy 		blksize = _3btol(data.desc.blklen);
   1924  1.256     itohy 
   1925  1.256     itohy 	} else if (!sd_validate_blksize(NULL, blksize)) {
   1926  1.209   mycroft 		struct sd_mode_sense_data scsipi_sense;
   1927  1.209   mycroft 		int big, bsize;
   1928  1.236   thorpej 		struct scsi_general_block_descriptor *bdesc;
   1929  1.209   mycroft 
   1930  1.209   mycroft 		memset(&scsipi_sense, 0, sizeof(scsipi_sense));
   1931  1.209   mycroft 		error = sd_mode_sense(sd, 0, &scsipi_sense,
   1932  1.209   mycroft 		    sizeof(scsipi_sense.blk_desc), 0, flags | XS_CTL_SILENT, &big);
   1933  1.209   mycroft 		if (!error) {
   1934  1.209   mycroft 			if (big) {
   1935  1.209   mycroft 				bdesc = (void *)(&scsipi_sense.header.big + 1);
   1936  1.209   mycroft 				bsize = _2btol(scsipi_sense.header.big.blk_desc_len);
   1937  1.209   mycroft 			} else {
   1938  1.209   mycroft 				bdesc = (void *)(&scsipi_sense.header.small + 1);
   1939  1.209   mycroft 				bsize = scsipi_sense.header.small.blk_desc_len;
   1940  1.209   mycroft 			}
   1941  1.209   mycroft 
   1942  1.209   mycroft #if 0
   1943  1.209   mycroft printf("page 0 sense:"); for (i = sizeof(scsipi_sense), p = (void *)&scsipi_sense; i; i--, p++) printf(" %02x", *p); printf("\n");
   1944  1.209   mycroft printf("page 0 bsize=%d\n", bsize);
   1945  1.209   mycroft printf("page 0 ok\n");
   1946  1.209   mycroft #endif
   1947  1.209   mycroft 
   1948  1.209   mycroft 			if (bsize >= 8) {
   1949  1.256     itohy 				blksize = _3btol(bdesc->blklen);
   1950  1.209   mycroft 			}
   1951  1.209   mycroft 		}
   1952  1.209   mycroft 	}
   1953  1.209   mycroft 
   1954  1.256     itohy 	if (!sd_validate_blksize(sd->sc_periph, blksize))
   1955  1.256     itohy 		blksize = SD_DEFAULT_BLKSIZE;
   1956  1.256     itohy 
   1957  1.256     itohy 	dp->blksize = blksize;
   1958  1.256     itohy 	dp->disksize512 = (blocks * dp->blksize) / DEV_BSIZE;
   1959  1.209   mycroft 	return (0);
   1960  1.209   mycroft }
   1961  1.209   mycroft 
   1962  1.220   thorpej static int
   1963  1.220   thorpej sd_get_parms_page4(struct sd_softc *sd, struct disk_parms *dp, int flags)
   1964  1.209   mycroft {
   1965  1.209   mycroft 	struct sd_mode_sense_data scsipi_sense;
   1966  1.209   mycroft 	int error;
   1967  1.258  christos 	int big, byte2;
   1968  1.258  christos 	size_t poffset;
   1969  1.209   mycroft 	union scsi_disk_pages *pages;
   1970  1.209   mycroft 
   1971  1.214        pk 	byte2 = SMS_DBD;
   1972  1.218   mycroft again:
   1973  1.209   mycroft 	memset(&scsipi_sense, 0, sizeof(scsipi_sense));
   1974  1.214        pk 	error = sd_mode_sense(sd, byte2, &scsipi_sense,
   1975  1.218   mycroft 	    (byte2 ? 0 : sizeof(scsipi_sense.blk_desc)) +
   1976  1.209   mycroft 	    sizeof(scsipi_sense.pages.rigid_geometry), 4,
   1977  1.209   mycroft 	    flags | XS_CTL_SILENT, &big);
   1978  1.218   mycroft 	if (error) {
   1979  1.218   mycroft 		if (byte2 == SMS_DBD) {
   1980  1.218   mycroft 			/* No result; try once more with DBD off */
   1981  1.218   mycroft 			byte2 = 0;
   1982  1.218   mycroft 			goto again;
   1983  1.218   mycroft 		}
   1984  1.218   mycroft 		return (error);
   1985  1.214        pk 	}
   1986  1.214        pk 
   1987  1.218   mycroft 	if (big) {
   1988  1.218   mycroft 		poffset = sizeof scsipi_sense.header.big;
   1989  1.218   mycroft 		poffset += _2btol(scsipi_sense.header.big.blk_desc_len);
   1990  1.218   mycroft 	} else {
   1991  1.218   mycroft 		poffset = sizeof scsipi_sense.header.small;
   1992  1.218   mycroft 		poffset += scsipi_sense.header.small.blk_desc_len;
   1993  1.218   mycroft 	}
   1994  1.209   mycroft 
   1995  1.258  christos 	if (poffset > sizeof(scsipi_sense) - sizeof(pages->rigid_geometry))
   1996  1.258  christos 		return ERESTART;
   1997  1.258  christos 
   1998  1.235   reinoud 	pages = (void *)((u_long)&scsipi_sense + poffset);
   1999  1.209   mycroft #if 0
   2000  1.258  christos 	{
   2001  1.258  christos 		size_t i;
   2002  1.258  christos 		u_int8_t *p;
   2003  1.258  christos 
   2004  1.258  christos 		printf("page 4 sense:");
   2005  1.258  christos 		for (i = sizeof(scsipi_sense), p = (void *)&scsipi_sense; i;
   2006  1.258  christos 		    i--, p++)
   2007  1.258  christos 			printf(" %02x", *p);
   2008  1.258  christos 		printf("\n");
   2009  1.258  christos 		printf("page 4 pg_code=%d sense=%p/%p\n",
   2010  1.258  christos 		    pages->rigid_geometry.pg_code, &scsipi_sense, pages);
   2011  1.258  christos 	}
   2012  1.209   mycroft #endif
   2013  1.209   mycroft 
   2014  1.218   mycroft 	if ((pages->rigid_geometry.pg_code & PGCODE_MASK) != 4)
   2015  1.218   mycroft 		return (ERESTART);
   2016  1.214        pk 
   2017  1.218   mycroft 	SC_DEBUG(sd->sc_periph, SCSIPI_DB3,
   2018  1.218   mycroft 	    ("%d cyls, %d heads, %d precomp, %d red_write, %d land_zone\n",
   2019  1.218   mycroft 	    _3btol(pages->rigid_geometry.ncyl),
   2020  1.218   mycroft 	    pages->rigid_geometry.nheads,
   2021  1.218   mycroft 	    _2btol(pages->rigid_geometry.st_cyl_wp),
   2022  1.218   mycroft 	    _2btol(pages->rigid_geometry.st_cyl_rwc),
   2023  1.218   mycroft 	    _2btol(pages->rigid_geometry.land_zone)));
   2024  1.218   mycroft 
   2025  1.218   mycroft 	/*
   2026  1.218   mycroft 	 * KLUDGE!! (for zone recorded disks)
   2027  1.218   mycroft 	 * give a number of sectors so that sec * trks * cyls
   2028  1.218   mycroft 	 * is <= disk_size
   2029  1.218   mycroft 	 * can lead to wasted space! THINK ABOUT THIS !
   2030  1.218   mycroft 	 */
   2031  1.218   mycroft 	dp->heads = pages->rigid_geometry.nheads;
   2032  1.218   mycroft 	dp->cyls = _3btol(pages->rigid_geometry.ncyl);
   2033  1.218   mycroft 	if (dp->heads == 0 || dp->cyls == 0)
   2034  1.218   mycroft 		return (ERESTART);
   2035  1.218   mycroft 	dp->sectors = dp->disksize / (dp->heads * dp->cyls);	/* XXX */
   2036  1.218   mycroft 
   2037  1.218   mycroft 	dp->rot_rate = _2btol(pages->rigid_geometry.rpm);
   2038  1.218   mycroft 	if (dp->rot_rate == 0)
   2039  1.218   mycroft 		dp->rot_rate = 3600;
   2040  1.209   mycroft 
   2041  1.218   mycroft #if 0
   2042  1.218   mycroft printf("page 4 ok\n");
   2043  1.218   mycroft #endif
   2044  1.218   mycroft 	return (0);
   2045  1.218   mycroft }
   2046  1.209   mycroft 
   2047  1.220   thorpej static int
   2048  1.220   thorpej sd_get_parms_page5(struct sd_softc *sd, struct disk_parms *dp, int flags)
   2049  1.218   mycroft {
   2050  1.218   mycroft 	struct sd_mode_sense_data scsipi_sense;
   2051  1.218   mycroft 	int error;
   2052  1.258  christos 	int big, byte2;
   2053  1.258  christos 	size_t poffset;
   2054  1.218   mycroft 	union scsi_disk_pages *pages;
   2055  1.209   mycroft 
   2056  1.218   mycroft 	byte2 = SMS_DBD;
   2057  1.218   mycroft again:
   2058  1.214        pk 	memset(&scsipi_sense, 0, sizeof(scsipi_sense));
   2059  1.209   mycroft 	error = sd_mode_sense(sd, 0, &scsipi_sense,
   2060  1.218   mycroft 	    (byte2 ? 0 : sizeof(scsipi_sense.blk_desc)) +
   2061  1.209   mycroft 	    sizeof(scsipi_sense.pages.flex_geometry), 5,
   2062  1.209   mycroft 	    flags | XS_CTL_SILENT, &big);
   2063  1.218   mycroft 	if (error) {
   2064  1.218   mycroft 		if (byte2 == SMS_DBD) {
   2065  1.218   mycroft 			/* No result; try once more with DBD off */
   2066  1.218   mycroft 			byte2 = 0;
   2067  1.218   mycroft 			goto again;
   2068  1.214        pk 		}
   2069  1.218   mycroft 		return (error);
   2070  1.218   mycroft 	}
   2071  1.214        pk 
   2072  1.218   mycroft 	if (big) {
   2073  1.218   mycroft 		poffset = sizeof scsipi_sense.header.big;
   2074  1.218   mycroft 		poffset += _2btol(scsipi_sense.header.big.blk_desc_len);
   2075  1.218   mycroft 	} else {
   2076  1.218   mycroft 		poffset = sizeof scsipi_sense.header.small;
   2077  1.218   mycroft 		poffset += scsipi_sense.header.small.blk_desc_len;
   2078  1.218   mycroft 	}
   2079  1.209   mycroft 
   2080  1.258  christos 	if (poffset > sizeof(scsipi_sense) - sizeof(pages->flex_geometry))
   2081  1.258  christos 		return ERESTART;
   2082  1.258  christos 
   2083  1.235   reinoud 	pages = (void *)((u_long)&scsipi_sense + poffset);
   2084  1.209   mycroft #if 0
   2085  1.258  christos 	{
   2086  1.258  christos 		size_t i;
   2087  1.258  christos 		u_int8_t *p;
   2088  1.258  christos 
   2089  1.258  christos 		printf("page 5 sense:");
   2090  1.258  christos 		for (i = sizeof(scsipi_sense), p = (void *)&scsipi_sense; i;
   2091  1.258  christos 		    i--, p++)
   2092  1.258  christos 			printf(" %02x", *p);
   2093  1.258  christos 		printf("\n");
   2094  1.258  christos 		printf("page 5 pg_code=%d sense=%p/%p\n",
   2095  1.258  christos 		    pages->flex_geometry.pg_code, &scsipi_sense, pages);
   2096  1.258  christos 	}
   2097  1.209   mycroft #endif
   2098  1.209   mycroft 
   2099  1.218   mycroft 	if ((pages->flex_geometry.pg_code & PGCODE_MASK) != 5)
   2100  1.218   mycroft 		return (ERESTART);
   2101  1.214        pk 
   2102  1.218   mycroft 	SC_DEBUG(sd->sc_periph, SCSIPI_DB3,
   2103  1.218   mycroft 	    ("%d cyls, %d heads, %d sec, %d bytes/sec\n",
   2104  1.218   mycroft 	    _3btol(pages->flex_geometry.ncyl),
   2105  1.218   mycroft 	    pages->flex_geometry.nheads,
   2106  1.218   mycroft 	    pages->flex_geometry.ph_sec_tr,
   2107  1.218   mycroft 	    _2btol(pages->flex_geometry.bytes_s)));
   2108  1.218   mycroft 
   2109  1.218   mycroft 	dp->heads = pages->flex_geometry.nheads;
   2110  1.218   mycroft 	dp->cyls = _2btol(pages->flex_geometry.ncyl);
   2111  1.218   mycroft 	dp->sectors = pages->flex_geometry.ph_sec_tr;
   2112  1.218   mycroft 	if (dp->heads == 0 || dp->cyls == 0 || dp->sectors == 0)
   2113  1.218   mycroft 		return (ERESTART);
   2114  1.218   mycroft 
   2115  1.218   mycroft 	dp->rot_rate = _2btol(pages->rigid_geometry.rpm);
   2116  1.218   mycroft 	if (dp->rot_rate == 0)
   2117  1.218   mycroft 		dp->rot_rate = 3600;
   2118  1.209   mycroft 
   2119  1.209   mycroft #if 0
   2120  1.209   mycroft printf("page 5 ok\n");
   2121  1.209   mycroft #endif
   2122  1.218   mycroft 	return (0);
   2123  1.218   mycroft }
   2124  1.218   mycroft 
   2125  1.220   thorpej static int
   2126  1.220   thorpej sd_get_parms(struct sd_softc *sd, struct disk_parms *dp, int flags)
   2127  1.218   mycroft {
   2128  1.218   mycroft 	int error;
   2129  1.218   mycroft 
   2130  1.218   mycroft 	/*
   2131  1.218   mycroft 	 * If offline, the SDEV_MEDIA_LOADED flag will be
   2132  1.218   mycroft 	 * cleared by the caller if necessary.
   2133  1.218   mycroft 	 */
   2134  1.255       scw 	if (sd->type == T_SIMPLE_DIRECT) {
   2135  1.255       scw 		error = sd_get_simplifiedparms(sd, dp, flags);
   2136  1.255       scw 		if (!error)
   2137  1.255       scw 			disk_blocksize(&sd->sc_dk, dp->blksize);
   2138  1.255       scw 		return (error);
   2139  1.255       scw 	}
   2140  1.218   mycroft 
   2141  1.218   mycroft 	error = sd_get_capacity(sd, dp, flags);
   2142  1.218   mycroft 	if (error)
   2143  1.218   mycroft 		return (error);
   2144  1.218   mycroft 
   2145  1.255       scw 	disk_blocksize(&sd->sc_dk, dp->blksize);
   2146  1.255       scw 
   2147  1.218   mycroft 	if (sd->type == T_OPTICAL)
   2148  1.218   mycroft 		goto page0;
   2149  1.218   mycroft 
   2150  1.218   mycroft 	if (sd->sc_periph->periph_flags & PERIPH_REMOVABLE) {
   2151  1.218   mycroft 		if (!sd_get_parms_page5(sd, dp, flags) ||
   2152  1.218   mycroft 		    !sd_get_parms_page4(sd, dp, flags))
   2153  1.289   jnemeth 			goto setprops;
   2154  1.218   mycroft 	} else {
   2155  1.218   mycroft 		if (!sd_get_parms_page4(sd, dp, flags) ||
   2156  1.218   mycroft 		    !sd_get_parms_page5(sd, dp, flags))
   2157  1.289   jnemeth 			goto setprops;
   2158  1.209   mycroft 	}
   2159  1.209   mycroft 
   2160  1.209   mycroft page0:
   2161  1.275  drochner 	printf("%s: fabricating a geometry\n", device_xname(sd->sc_dev));
   2162  1.209   mycroft 	/* Try calling driver's method for figuring out geometry. */
   2163  1.209   mycroft 	if (!sd->sc_periph->periph_channel->chan_adapter->adapt_getgeom ||
   2164  1.209   mycroft 	    !(*sd->sc_periph->periph_channel->chan_adapter->adapt_getgeom)
   2165  1.209   mycroft 		(sd->sc_periph, dp, dp->disksize)) {
   2166  1.209   mycroft 		/*
   2167  1.209   mycroft 		 * Use adaptec standard fictitious geometry
   2168  1.209   mycroft 		 * this depends on which controller (e.g. 1542C is
   2169  1.209   mycroft 		 * different. but we have to put SOMETHING here..)
   2170  1.209   mycroft 		 */
   2171  1.209   mycroft 		dp->heads = 64;
   2172  1.209   mycroft 		dp->sectors = 32;
   2173  1.209   mycroft 		dp->cyls = dp->disksize / (64 * 32);
   2174  1.209   mycroft 	}
   2175  1.209   mycroft 	dp->rot_rate = 3600;
   2176  1.288  jakllsch 
   2177  1.289   jnemeth setprops:
   2178  1.300  christos 	sd_set_geometry(sd);
   2179  1.288  jakllsch 
   2180  1.209   mycroft 	return (SDGP_RESULT_OK);
   2181  1.209   mycroft }
   2182  1.209   mycroft 
   2183  1.220   thorpej static int
   2184  1.220   thorpej sd_flush(struct sd_softc *sd, int flags)
   2185  1.209   mycroft {
   2186  1.209   mycroft 	struct scsipi_periph *periph = sd->sc_periph;
   2187  1.232   thorpej 	struct scsi_synchronize_cache_10 cmd;
   2188  1.209   mycroft 
   2189  1.209   mycroft 	/*
   2190  1.209   mycroft 	 * If the device is SCSI-2, issue a SYNCHRONIZE CACHE.
   2191  1.209   mycroft 	 * We issue with address 0 length 0, which should be
   2192  1.209   mycroft 	 * interpreted by the device as "all remaining blocks
   2193  1.209   mycroft 	 * starting at address 0".  We ignore ILLEGAL REQUEST
   2194  1.209   mycroft 	 * in the event that the command is not supported by
   2195  1.209   mycroft 	 * the device, and poll for completion so that we know
   2196  1.209   mycroft 	 * that the cache has actually been flushed.
   2197  1.209   mycroft 	 *
   2198  1.209   mycroft 	 * Unless, that is, the device can't handle the SYNCHRONIZE CACHE
   2199  1.209   mycroft 	 * command, as indicated by our quirks flags.
   2200  1.209   mycroft 	 *
   2201  1.209   mycroft 	 * XXX What about older devices?
   2202  1.209   mycroft 	 */
   2203  1.218   mycroft 	if (periph->periph_version < 2 ||
   2204  1.218   mycroft 	    (periph->periph_quirks & PQUIRK_NOSYNCCACHE))
   2205  1.210   mycroft 		return (0);
   2206  1.218   mycroft 
   2207  1.218   mycroft 	sd->flags |= SDF_FLUSHING;
   2208  1.218   mycroft 	memset(&cmd, 0, sizeof(cmd));
   2209  1.232   thorpej 	cmd.opcode = SCSI_SYNCHRONIZE_CACHE_10;
   2210  1.218   mycroft 
   2211  1.226   mycroft 	return (scsipi_command(periph, (void *)&cmd, sizeof(cmd), 0, 0,
   2212  1.218   mycroft 	    SDRETRIES, 100000, NULL, flags | XS_CTL_IGNORE_ILLEGAL_REQUEST));
   2213  1.209   mycroft }
   2214  1.209   mycroft 
   2215  1.220   thorpej static int
   2216  1.220   thorpej sd_getcache(struct sd_softc *sd, int *bitsp)
   2217  1.209   mycroft {
   2218  1.209   mycroft 	struct scsipi_periph *periph = sd->sc_periph;
   2219  1.209   mycroft 	struct sd_mode_sense_data scsipi_sense;
   2220  1.209   mycroft 	int error, bits = 0;
   2221  1.209   mycroft 	int big;
   2222  1.209   mycroft 	union scsi_disk_pages *pages;
   2223  1.209   mycroft 
   2224  1.209   mycroft 	if (periph->periph_version < 2)
   2225  1.209   mycroft 		return (EOPNOTSUPP);
   2226  1.209   mycroft 
   2227  1.209   mycroft 	memset(&scsipi_sense, 0, sizeof(scsipi_sense));
   2228  1.209   mycroft 	error = sd_mode_sense(sd, SMS_DBD, &scsipi_sense,
   2229  1.209   mycroft 	    sizeof(scsipi_sense.pages.caching_params), 8, 0, &big);
   2230  1.209   mycroft 	if (error)
   2231  1.209   mycroft 		return (error);
   2232  1.209   mycroft 
   2233  1.209   mycroft 	if (big)
   2234  1.209   mycroft 		pages = (void *)(&scsipi_sense.header.big + 1);
   2235  1.209   mycroft 	else
   2236  1.209   mycroft 		pages = (void *)(&scsipi_sense.header.small + 1);
   2237  1.209   mycroft 
   2238  1.209   mycroft 	if ((pages->caching_params.flags & CACHING_RCD) == 0)
   2239  1.209   mycroft 		bits |= DKCACHE_READ;
   2240  1.209   mycroft 	if (pages->caching_params.flags & CACHING_WCE)
   2241  1.209   mycroft 		bits |= DKCACHE_WRITE;
   2242  1.209   mycroft 	if (pages->caching_params.pg_code & PGCODE_PS)
   2243  1.209   mycroft 		bits |= DKCACHE_SAVE;
   2244  1.209   mycroft 
   2245  1.209   mycroft 	memset(&scsipi_sense, 0, sizeof(scsipi_sense));
   2246  1.209   mycroft 	error = sd_mode_sense(sd, SMS_DBD, &scsipi_sense,
   2247  1.209   mycroft 	    sizeof(scsipi_sense.pages.caching_params),
   2248  1.236   thorpej 	    SMS_PCTRL_CHANGEABLE|8, 0, &big);
   2249  1.209   mycroft 	if (error == 0) {
   2250  1.209   mycroft 		if (big)
   2251  1.209   mycroft 			pages = (void *)(&scsipi_sense.header.big + 1);
   2252  1.209   mycroft 		else
   2253  1.209   mycroft 			pages = (void *)(&scsipi_sense.header.small + 1);
   2254  1.209   mycroft 
   2255  1.209   mycroft 		if (pages->caching_params.flags & CACHING_RCD)
   2256  1.209   mycroft 			bits |= DKCACHE_RCHANGE;
   2257  1.209   mycroft 		if (pages->caching_params.flags & CACHING_WCE)
   2258  1.209   mycroft 			bits |= DKCACHE_WCHANGE;
   2259  1.209   mycroft 	}
   2260  1.209   mycroft 
   2261  1.209   mycroft 	*bitsp = bits;
   2262  1.209   mycroft 
   2263  1.209   mycroft 	return (0);
   2264  1.209   mycroft }
   2265  1.209   mycroft 
   2266  1.220   thorpej static int
   2267  1.220   thorpej sd_setcache(struct sd_softc *sd, int bits)
   2268  1.209   mycroft {
   2269  1.209   mycroft 	struct scsipi_periph *periph = sd->sc_periph;
   2270  1.209   mycroft 	struct sd_mode_sense_data scsipi_sense;
   2271  1.209   mycroft 	int error;
   2272  1.209   mycroft 	uint8_t oflags, byte2 = 0;
   2273  1.209   mycroft 	int big;
   2274  1.209   mycroft 	union scsi_disk_pages *pages;
   2275  1.209   mycroft 
   2276  1.209   mycroft 	if (periph->periph_version < 2)
   2277  1.209   mycroft 		return (EOPNOTSUPP);
   2278  1.209   mycroft 
   2279  1.209   mycroft 	memset(&scsipi_sense, 0, sizeof(scsipi_sense));
   2280  1.209   mycroft 	error = sd_mode_sense(sd, SMS_DBD, &scsipi_sense,
   2281  1.214        pk 	    sizeof(scsipi_sense.pages.caching_params), 8, 0, &big);
   2282  1.209   mycroft 	if (error)
   2283  1.209   mycroft 		return (error);
   2284  1.209   mycroft 
   2285  1.209   mycroft 	if (big)
   2286  1.209   mycroft 		pages = (void *)(&scsipi_sense.header.big + 1);
   2287  1.209   mycroft 	else
   2288  1.209   mycroft 		pages = (void *)(&scsipi_sense.header.small + 1);
   2289  1.209   mycroft 
   2290  1.209   mycroft 	oflags = pages->caching_params.flags;
   2291  1.209   mycroft 
   2292  1.209   mycroft 	if (bits & DKCACHE_READ)
   2293  1.209   mycroft 		pages->caching_params.flags &= ~CACHING_RCD;
   2294  1.209   mycroft 	else
   2295  1.209   mycroft 		pages->caching_params.flags |= CACHING_RCD;
   2296  1.209   mycroft 
   2297  1.209   mycroft 	if (bits & DKCACHE_WRITE)
   2298  1.209   mycroft 		pages->caching_params.flags |= CACHING_WCE;
   2299  1.209   mycroft 	else
   2300  1.209   mycroft 		pages->caching_params.flags &= ~CACHING_WCE;
   2301  1.209   mycroft 
   2302  1.209   mycroft 	if (oflags == pages->caching_params.flags)
   2303  1.209   mycroft 		return (0);
   2304  1.209   mycroft 
   2305  1.209   mycroft 	pages->caching_params.pg_code &= PGCODE_MASK;
   2306  1.209   mycroft 
   2307  1.209   mycroft 	if (bits & DKCACHE_SAVE)
   2308  1.209   mycroft 		byte2 |= SMS_SP;
   2309  1.209   mycroft 
   2310  1.209   mycroft 	return (sd_mode_select(sd, byte2|SMS_PF, &scsipi_sense,
   2311  1.236   thorpej 	    sizeof(struct scsi_mode_page_header) +
   2312  1.209   mycroft 	    pages->caching_params.pg_length, 0, big));
   2313    1.1       cgd }
   2314  1.260   jnemeth 
   2315  1.260   jnemeth static void
   2316  1.300  christos sd_set_geometry(struct sd_softc *sd)
   2317  1.260   jnemeth {
   2318  1.300  christos 	struct disk_geom *dg = &sd->sc_dk.dk_geom;
   2319  1.260   jnemeth 
   2320  1.300  christos 	memset(dg, 0, sizeof(*dg));
   2321  1.260   jnemeth 
   2322  1.300  christos 	dg->dg_secperunit = sd->params.disksize;
   2323  1.300  christos 	dg->dg_secsize = sd->params.blksize;
   2324  1.300  christos 	dg->dg_nsectors = sd->params.sectors;
   2325  1.300  christos 	dg->dg_ntracks = sd->params.heads;
   2326  1.300  christos 	dg->dg_ncylinders = sd->params.cyls;
   2327  1.260   jnemeth 
   2328  1.300  christos 	disk_set_info(sd->sc_dev, &sd->sc_dk, NULL);
   2329  1.260   jnemeth }
   2330