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wd.c revision 1.363.8.1.4.1
      1  1.363.8.1.4.1      matt /*	$NetBSD: wd.c,v 1.363.8.1.4.1 2010/04/21 00:27:34 matt Exp $ */
      2          1.181    bouyer 
      3          1.181    bouyer /*
      4          1.218    bouyer  * Copyright (c) 1998, 2001 Manuel Bouyer.  All rights reserved.
      5          1.181    bouyer  *
      6          1.181    bouyer  * Redistribution and use in source and binary forms, with or without
      7          1.181    bouyer  * modification, are permitted provided that the following conditions
      8          1.181    bouyer  * are met:
      9          1.181    bouyer  * 1. Redistributions of source code must retain the above copyright
     10          1.181    bouyer  *	notice, this list of conditions and the following disclaimer.
     11          1.181    bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     12          1.181    bouyer  *	notice, this list of conditions and the following disclaimer in the
     13          1.181    bouyer  *	documentation and/or other materials provided with the distribution.
     14          1.181    bouyer  * 3. All advertising materials mentioning features or use of this software
     15          1.181    bouyer  *	must display the following acknowledgement:
     16          1.181    bouyer  *  This product includes software developed by Manuel Bouyer.
     17          1.181    bouyer  * 4. The name of the author may not be used to endorse or promote products
     18          1.181    bouyer  *	derived from this software without specific prior written permission.
     19          1.181    bouyer  *
     20          1.181    bouyer  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     21          1.181    bouyer  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     22          1.181    bouyer  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     23          1.259       dsl  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     24          1.181    bouyer  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     25          1.181    bouyer  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     26          1.181    bouyer  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     27          1.181    bouyer  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     28          1.181    bouyer  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     29          1.181    bouyer  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     30          1.181    bouyer  */
     31          1.100       cgd 
     32          1.178   mycroft /*-
     33          1.280   mycroft  * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc.
     34          1.178   mycroft  * All rights reserved.
     35          1.119   mycroft  *
     36          1.178   mycroft  * This code is derived from software contributed to The NetBSD Foundation
     37          1.178   mycroft  * by Charles M. Hannum and by Onno van der Linden.
     38          1.168       cgd  *
     39          1.113   mycroft  * Redistribution and use in source and binary forms, with or without
     40          1.113   mycroft  * modification, are permitted provided that the following conditions
     41          1.113   mycroft  * are met:
     42          1.113   mycroft  * 1. Redistributions of source code must retain the above copyright
     43          1.113   mycroft  *    notice, this list of conditions and the following disclaimer.
     44          1.113   mycroft  * 2. Redistributions in binary form must reproduce the above copyright
     45          1.113   mycroft  *    notice, this list of conditions and the following disclaimer in the
     46          1.113   mycroft  *    documentation and/or other materials provided with the distribution.
     47          1.113   mycroft  *
     48          1.178   mycroft  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     49          1.178   mycroft  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     50          1.178   mycroft  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     51          1.178   mycroft  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     52          1.178   mycroft  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     53          1.178   mycroft  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     54          1.178   mycroft  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     55          1.178   mycroft  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     56          1.178   mycroft  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     57          1.178   mycroft  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     58          1.178   mycroft  * POSSIBILITY OF SUCH DAMAGE.
     59            1.1       cgd  */
     60          1.215     lukem 
     61          1.215     lukem #include <sys/cdefs.h>
     62  1.363.8.1.4.1      matt __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.363.8.1.4.1 2010/04/21 00:27:34 matt Exp $");
     63            1.1       cgd 
     64          1.338    dyoung #include "opt_ata.h"
     65          1.181    bouyer 
     66          1.166  explorer #include "rnd.h"
     67          1.166  explorer 
     68           1.29   mycroft #include <sys/param.h>
     69           1.29   mycroft #include <sys/systm.h>
     70           1.43   mycroft #include <sys/kernel.h>
     71           1.29   mycroft #include <sys/conf.h>
     72           1.29   mycroft #include <sys/file.h>
     73           1.29   mycroft #include <sys/stat.h>
     74           1.29   mycroft #include <sys/ioctl.h>
     75           1.29   mycroft #include <sys/buf.h>
     76          1.296      yamt #include <sys/bufq.h>
     77           1.29   mycroft #include <sys/uio.h>
     78           1.29   mycroft #include <sys/malloc.h>
     79           1.64   mycroft #include <sys/device.h>
     80           1.94   mycroft #include <sys/disklabel.h>
     81           1.94   mycroft #include <sys/disk.h>
     82           1.29   mycroft #include <sys/syslog.h>
     83          1.149  christos #include <sys/proc.h>
     84          1.354     joerg #include <sys/reboot.h>
     85          1.196     enami #include <sys/vnode.h>
     86          1.166  explorer #if NRND > 0
     87          1.165  explorer #include <sys/rnd.h>
     88          1.166  explorer #endif
     89           1.29   mycroft 
     90          1.347        ad #include <sys/intr.h>
     91          1.347        ad #include <sys/bus.h>
     92          1.237   thorpej 
     93          1.181    bouyer #include <dev/ata/atareg.h>
     94          1.181    bouyer #include <dev/ata/atavar.h>
     95          1.181    bouyer #include <dev/ata/wdvar.h>
     96          1.181    bouyer #include <dev/ic/wdcreg.h>
     97          1.186      kenh #include <sys/ataio.h>
     98          1.163    bouyer #include "locators.h"
     99            1.1       cgd 
    100          1.330   thorpej #include <prop/proplib.h>
    101          1.330   thorpej 
    102          1.189    bouyer #define	WDIORETRIES_SINGLE 4	/* number of retries before single-sector */
    103          1.181    bouyer #define	WDIORETRIES	5	/* number of retries before giving up */
    104          1.181    bouyer #define	RECOVERYTIME hz/2	/* time to wait before retrying a cmd */
    105           1.23   deraadt 
    106          1.181    bouyer #define	WDUNIT(dev)		DISKUNIT(dev)
    107          1.181    bouyer #define	WDPART(dev)		DISKPART(dev)
    108          1.196     enami #define	WDMINOR(unit, part)	DISKMINOR(unit, part)
    109           1.92       cgd #define	MAKEWDDEV(maj, unit, part)	MAKEDISKDEV(maj, unit, part)
    110           1.92       cgd 
    111           1.92       cgd #define	WDLABELDEV(dev)	(MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART))
    112            1.1       cgd 
    113          1.181    bouyer #define DEBUG_INTR   0x01
    114          1.181    bouyer #define DEBUG_XFERS  0x02
    115          1.181    bouyer #define DEBUG_STATUS 0x04
    116          1.181    bouyer #define DEBUG_FUNCS  0x08
    117          1.181    bouyer #define DEBUG_PROBE  0x10
    118          1.289   thorpej #ifdef ATADEBUG
    119          1.298     perry int wdcdebug_wd_mask = 0x0;
    120          1.289   thorpej #define ATADEBUG_PRINT(args, level) \
    121          1.181    bouyer 	if (wdcdebug_wd_mask & (level)) \
    122          1.181    bouyer 		printf args
    123          1.163    bouyer #else
    124          1.289   thorpej #define ATADEBUG_PRINT(args, level)
    125          1.163    bouyer #endif
    126          1.181    bouyer 
    127          1.259       dsl int	wdprobe(struct device *, struct cfdata *, void *);
    128          1.259       dsl void	wdattach(struct device *, struct device *, void *);
    129          1.259       dsl int	wddetach(struct device *, int);
    130          1.259       dsl int	wdactivate(struct device *, enum devact);
    131          1.259       dsl int	wdprint(void *, char *);
    132          1.259       dsl void	wdperror(const struct wd_softc *);
    133          1.102   mycroft 
    134          1.358    dyoung static bool	wd_suspend(device_t PMF_FN_PROTO);
    135          1.353  jmcneill static int	wd_standby(struct wd_softc *, int);
    136          1.351  jmcneill 
    137          1.360      cube CFATTACH_DECL_NEW(wd, sizeof(struct wd_softc),
    138          1.229   thorpej     wdprobe, wdattach, wddetach, wdactivate);
    139          1.147   thorpej 
    140          1.167   thorpej extern struct cfdriver wd_cd;
    141          1.108   mycroft 
    142          1.225   gehenna dev_type_open(wdopen);
    143          1.225   gehenna dev_type_close(wdclose);
    144          1.225   gehenna dev_type_read(wdread);
    145          1.225   gehenna dev_type_write(wdwrite);
    146          1.225   gehenna dev_type_ioctl(wdioctl);
    147          1.225   gehenna dev_type_strategy(wdstrategy);
    148          1.225   gehenna dev_type_dump(wddump);
    149          1.225   gehenna dev_type_size(wdsize);
    150          1.225   gehenna 
    151          1.225   gehenna const struct bdevsw wd_bdevsw = {
    152          1.225   gehenna 	wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK
    153          1.225   gehenna };
    154          1.225   gehenna 
    155          1.225   gehenna const struct cdevsw wd_cdevsw = {
    156          1.225   gehenna 	wdopen, wdclose, wdread, wdwrite, wdioctl,
    157          1.231  jdolecek 	nostop, notty, nopoll, nommap, nokqfilter, D_DISK
    158          1.225   gehenna };
    159          1.225   gehenna 
    160          1.185      kenh /*
    161          1.185      kenh  * Glue necessary to hook WDCIOCCOMMAND into physio
    162          1.185      kenh  */
    163          1.185      kenh 
    164          1.185      kenh struct wd_ioctl {
    165          1.185      kenh 	LIST_ENTRY(wd_ioctl) wi_list;
    166          1.185      kenh 	struct buf wi_bp;
    167          1.185      kenh 	struct uio wi_uio;
    168          1.185      kenh 	struct iovec wi_iov;
    169          1.186      kenh 	atareq_t wi_atareq;
    170          1.185      kenh 	struct wd_softc *wi_softc;
    171          1.185      kenh };
    172          1.185      kenh 
    173          1.185      kenh LIST_HEAD(, wd_ioctl) wi_head;
    174          1.185      kenh 
    175          1.259       dsl struct	wd_ioctl *wi_find(struct buf *);
    176          1.259       dsl void	wi_free(struct wd_ioctl *);
    177          1.259       dsl struct	wd_ioctl *wi_get(void);
    178          1.259       dsl void	wdioctlstrategy(struct buf *);
    179          1.259       dsl 
    180          1.259       dsl void  wdgetdefaultlabel(struct wd_softc *, struct disklabel *);
    181          1.259       dsl void  wdgetdisklabel(struct wd_softc *);
    182          1.259       dsl void  wdstart(void *);
    183          1.259       dsl void  __wdstart(struct wd_softc*, struct buf *);
    184          1.259       dsl void  wdrestart(void *);
    185          1.272   thorpej void  wddone(void *);
    186          1.259       dsl int   wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *);
    187          1.276    bouyer int   wd_flushcache(struct wd_softc *, int);
    188          1.357  drochner bool  wd_shutdown(device_t, int);
    189          1.108   mycroft 
    190          1.259       dsl int   wd_getcache(struct wd_softc *, int *);
    191          1.259       dsl int   wd_setcache(struct wd_softc *, int);
    192          1.248    bouyer 
    193          1.294   thorpej struct dkdriver wddkdriver = { wdstrategy, minphys };
    194           1.65   mycroft 
    195          1.170       leo #ifdef HAS_BAD144_HANDLING
    196          1.259       dsl static void bad144intern(struct wd_softc *);
    197          1.170       leo #endif
    198            1.1       cgd 
    199          1.239   thorpej #define	WD_QUIRK_SPLIT_MOD15_WRITE	0x0001	/* must split certain writes */
    200          1.239   thorpej 
    201          1.327     lukem #define	WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48"
    202          1.327     lukem 
    203          1.239   thorpej /*
    204          1.239   thorpej  * Quirk table for IDE drives.  Put more-specific matches first, since
    205          1.239   thorpej  * a simple globbing routine is used for matching.
    206          1.239   thorpej  */
    207          1.239   thorpej static const struct wd_quirk {
    208          1.239   thorpej 	const char *wdq_match;		/* inquiry pattern to match */
    209          1.239   thorpej 	int wdq_quirks;			/* drive quirks */
    210          1.239   thorpej } wd_quirk_table[] = {
    211          1.239   thorpej 	/*
    212          1.239   thorpej 	 * Some Seagate S-ATA drives have a PHY which can get confused
    213          1.239   thorpej 	 * with the way data is packetized by some S-ATA controllers.
    214          1.239   thorpej 	 *
    215          1.246     mason 	 * The work-around is to split in two any write transfer whose
    216          1.239   thorpej 	 * sector count % 15 == 1 (assuming 512 byte sectors).
    217          1.239   thorpej 	 *
    218          1.239   thorpej 	 * XXX This is an incomplete list.  There are at least a couple
    219          1.239   thorpej 	 * XXX more model numbers.  If you have trouble with such transfers
    220          1.239   thorpej 	 * XXX (8K is the most common) on Seagate S-ATA drives, please
    221          1.269    keihan 	 * XXX notify thorpej (at) NetBSD.org.
    222          1.239   thorpej 	 */
    223          1.239   thorpej 	{ "ST3120023AS",
    224          1.247  explorer 	  WD_QUIRK_SPLIT_MOD15_WRITE },
    225          1.247  explorer 	{ "ST380023AS",
    226          1.239   thorpej 	  WD_QUIRK_SPLIT_MOD15_WRITE },
    227          1.239   thorpej 	{ NULL,
    228          1.239   thorpej 	  0 }
    229          1.239   thorpej };
    230          1.239   thorpej 
    231          1.239   thorpej static const struct wd_quirk *
    232          1.239   thorpej wd_lookup_quirks(const char *name)
    233          1.239   thorpej {
    234          1.239   thorpej 	const struct wd_quirk *wdq;
    235          1.239   thorpej 	const char *estr;
    236          1.239   thorpej 
    237          1.239   thorpej 	for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) {
    238          1.239   thorpej 		/*
    239          1.239   thorpej 		 * We only want exact matches (which include matches
    240          1.239   thorpej 		 * against globbing characters).
    241          1.239   thorpej 		 */
    242          1.239   thorpej 		if (pmatch(name, wdq->wdq_match, &estr) == 2)
    243          1.239   thorpej 			return (wdq);
    244          1.239   thorpej 	}
    245          1.239   thorpej 	return (NULL);
    246          1.239   thorpej }
    247          1.239   thorpej 
    248            1.1       cgd int
    249          1.335  christos wdprobe(struct device *parent, struct cfdata *match, void *aux)
    250            1.1       cgd {
    251          1.216    bouyer 	struct ata_device *adev = aux;
    252          1.167   thorpej 
    253          1.216    bouyer 	if (adev == NULL)
    254          1.181    bouyer 		return 0;
    255          1.216    bouyer 	if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA)
    256           1.64   mycroft 		return 0;
    257          1.181    bouyer 
    258          1.263    bouyer 	if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT &&
    259          1.263    bouyer 	    match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive)
    260           1.74   mycroft 		return 0;
    261           1.74   mycroft 	return 1;
    262           1.74   mycroft }
    263           1.64   mycroft 
    264           1.74   mycroft void
    265          1.335  christos wdattach(struct device *parent, struct device *self, void *aux)
    266           1.74   mycroft {
    267          1.360      cube 	struct wd_softc *wd = device_private(self);
    268          1.216    bouyer 	struct ata_device *adev= aux;
    269           1.74   mycroft 	int i, blank;
    270          1.301  christos 	char tbuf[41], pbuf[9], c, *p, *q;
    271          1.239   thorpej 	const struct wd_quirk *wdq;
    272          1.350     itohy 
    273          1.360      cube 	wd->sc_dev = self;
    274          1.360      cube 
    275          1.289   thorpej 	ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE);
    276          1.340        ad 	callout_init(&wd->sc_restart_ch, 0);
    277          1.312      yamt 	bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK);
    278          1.292  drochner #ifdef WD_SOFTBADSECT
    279          1.241   darrenr 	SLIST_INIT(&wd->sc_bslist);
    280          1.292  drochner #endif
    281          1.217    bouyer 	wd->atabus = adev->adev_bustype;
    282          1.216    bouyer 	wd->openings = adev->adev_openings;
    283          1.235    simonb 	wd->drvp = adev->adev_drv_data;
    284          1.270   thorpej 
    285          1.270   thorpej 	wd->drvp->drv_done = wddone;
    286          1.360      cube 	wd->drvp->drv_softc = wd->sc_dev;
    287          1.181    bouyer 
    288          1.253   thorpej 	aprint_naive("\n");
    289          1.253   thorpej 
    290          1.181    bouyer 	/* read our drive info */
    291          1.261   mycroft 	if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) {
    292          1.360      cube 		aprint_error("\n%s: IDENTIFY failed\n", device_xname(self));
    293          1.181    bouyer 		return;
    294          1.181    bouyer 	}
    295          1.163    bouyer 
    296          1.301  christos 	for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0;
    297          1.181    bouyer 	    i < sizeof(wd->sc_params.atap_model); i++) {
    298          1.135   mycroft 		c = *p++;
    299          1.135   mycroft 		if (c == '\0')
    300          1.135   mycroft 			break;
    301          1.135   mycroft 		if (c != ' ') {
    302          1.135   mycroft 			if (blank) {
    303          1.135   mycroft 				*q++ = ' ';
    304          1.135   mycroft 				blank = 0;
    305          1.135   mycroft 			}
    306          1.135   mycroft 			*q++ = c;
    307          1.135   mycroft 		} else
    308          1.135   mycroft 			blank = 1;
    309          1.195     enami 	}
    310          1.135   mycroft 	*q++ = '\0';
    311          1.135   mycroft 
    312          1.301  christos 	aprint_normal(": <%s>\n", tbuf);
    313          1.113   mycroft 
    314          1.301  christos 	wdq = wd_lookup_quirks(tbuf);
    315          1.239   thorpej 	if (wdq != NULL)
    316          1.239   thorpej 		wd->sc_quirks = wdq->wdq_quirks;
    317          1.239   thorpej 
    318          1.327     lukem 	if (wd->sc_quirks != 0) {
    319          1.327     lukem 		char sbuf[sizeof(WD_QUIRK_FMT) + 64];
    320          1.327     lukem 		bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT,
    321          1.327     lukem 		    sbuf, sizeof(sbuf));
    322          1.360      cube 		aprint_normal_dev(self, "quirks %s\n", sbuf);
    323          1.327     lukem 	}
    324          1.327     lukem 
    325          1.181    bouyer 	if ((wd->sc_params.atap_multi & 0xff) > 1) {
    326          1.181    bouyer 		wd->sc_multi = wd->sc_params.atap_multi & 0xff;
    327          1.113   mycroft 	} else {
    328          1.181    bouyer 		wd->sc_multi = 1;
    329          1.113   mycroft 	}
    330          1.113   mycroft 
    331          1.360      cube 	aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,",
    332          1.360      cube 	    wd->sc_multi);
    333          1.172   mycroft 
    334          1.220  christos 	/* 48-bit LBA addressing */
    335          1.268      yamt 	if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0)
    336          1.220  christos 		wd->sc_flags |= WDF_LBA48;
    337          1.220  christos 
    338          1.172   mycroft 	/* Prior to ATA-4, LBA was optional. */
    339          1.181    bouyer 	if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0)
    340          1.181    bouyer 		wd->sc_flags |= WDF_LBA;
    341          1.174   mycroft #if 0
    342          1.172   mycroft 	/* ATA-4 requires LBA. */
    343          1.181    bouyer 	if (wd->sc_params.atap_ataversion != 0xffff &&
    344          1.181    bouyer 	    wd->sc_params.atap_ataversion >= WDC_VER_ATA4)
    345          1.181    bouyer 		wd->sc_flags |= WDF_LBA;
    346          1.174   mycroft #endif
    347          1.172   mycroft 
    348          1.220  christos 	if ((wd->sc_flags & WDF_LBA48) != 0) {
    349          1.336        ad 		aprint_verbose(" LBA48 addressing\n");
    350          1.220  christos 		wd->sc_capacity =
    351  1.363.8.1.4.1      matt 		    ((u_int64_t) wd->sc_params.atap_max_lba[3] << 48) |
    352  1.363.8.1.4.1      matt 		    ((u_int64_t) wd->sc_params.atap_max_lba[2] << 32) |
    353  1.363.8.1.4.1      matt 		    ((u_int64_t) wd->sc_params.atap_max_lba[1] << 16) |
    354  1.363.8.1.4.1      matt 		    ((u_int64_t) wd->sc_params.atap_max_lba[0] <<  0);
    355  1.363.8.1.4.1      matt 		wd->sc_capacity28 =
    356  1.363.8.1.4.1      matt 		    (wd->sc_params.atap_capacity[1] << 16) |
    357  1.363.8.1.4.1      matt 		    wd->sc_params.atap_capacity[0];
    358          1.220  christos 	} else if ((wd->sc_flags & WDF_LBA) != 0) {
    359          1.336        ad 		aprint_verbose(" LBA addressing\n");
    360  1.363.8.1.4.1      matt 		wd->sc_capacity28 = wd->sc_capacity =
    361  1.363.8.1.4.1      matt 		    (wd->sc_params.atap_capacity[1] << 16) |
    362          1.181    bouyer 		    wd->sc_params.atap_capacity[0];
    363          1.172   mycroft 	} else {
    364          1.336        ad 		aprint_verbose(" chs addressing\n");
    365  1.363.8.1.4.1      matt 		wd->sc_capacity28 = wd->sc_capacity =
    366          1.181    bouyer 		    wd->sc_params.atap_cylinders *
    367          1.181    bouyer 		    wd->sc_params.atap_heads *
    368          1.181    bouyer 		    wd->sc_params.atap_sectors;
    369          1.172   mycroft 	}
    370          1.240      fvdl 	format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE);
    371          1.360      cube 	aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, "
    372          1.240      fvdl 	    "%d bytes/sect x %llu sectors\n",
    373          1.360      cube 	    pbuf,
    374          1.260    bouyer 	    (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity /
    375          1.260    bouyer 		(wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) :
    376          1.260    bouyer 		wd->sc_params.atap_cylinders,
    377          1.201     enami 	    wd->sc_params.atap_heads, wd->sc_params.atap_sectors,
    378          1.240      fvdl 	    DEV_BSIZE, (unsigned long long)wd->sc_capacity);
    379          1.201     enami 
    380          1.289   thorpej 	ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n",
    381          1.360      cube 	    device_xname(self), wd->sc_params.atap_dmatiming_mimi,
    382          1.181    bouyer 	    wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE);
    383          1.181    bouyer 	/*
    384          1.181    bouyer 	 * Initialize and attach the disk structure.
    385          1.181    bouyer 	 */
    386          1.332   thorpej 	/* we fill in dk_info later */
    387          1.360      cube 	disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver);
    388          1.181    bouyer 	disk_attach(&wd->sc_dk);
    389          1.181    bouyer 	wd->sc_wdc_bio.lp = wd->sc_dk.dk_label;
    390          1.166  explorer #if NRND > 0
    391          1.360      cube 	rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev),
    392          1.193  explorer 			  RND_TYPE_DISK, 0);
    393          1.166  explorer #endif
    394          1.294   thorpej 
    395          1.294   thorpej 	/* Discover wedges on this disk. */
    396          1.294   thorpej 	dkwedge_discover(&wd->sc_dk);
    397          1.351  jmcneill 
    398          1.357  drochner 	if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown))
    399          1.351  jmcneill 		aprint_error_dev(self, "couldn't establish power handler\n");
    400          1.351  jmcneill }
    401          1.351  jmcneill 
    402          1.351  jmcneill static bool
    403          1.358    dyoung wd_suspend(device_t dv PMF_FN_ARGS)
    404          1.351  jmcneill {
    405          1.351  jmcneill 	struct wd_softc *sc = device_private(dv);
    406          1.351  jmcneill 
    407          1.356  drochner 	wd_flushcache(sc, AT_WAIT);
    408          1.356  drochner 	wd_standby(sc, AT_WAIT);
    409          1.351  jmcneill 	return true;
    410          1.196     enami }
    411          1.196     enami 
    412          1.196     enami int
    413          1.335  christos wdactivate(struct device *self, enum devact act)
    414          1.196     enami {
    415          1.196     enami 	int rv = 0;
    416          1.196     enami 
    417          1.196     enami 	switch (act) {
    418          1.196     enami 	case DVACT_ACTIVATE:
    419          1.196     enami 		rv = EOPNOTSUPP;
    420          1.196     enami 		break;
    421          1.196     enami 
    422          1.196     enami 	case DVACT_DEACTIVATE:
    423          1.196     enami 		/*
    424          1.196     enami 		 * Nothing to do; we key off the device's DVF_ACTIVATE.
    425          1.196     enami 		 */
    426          1.196     enami 		break;
    427          1.196     enami 	}
    428          1.196     enami 	return (rv);
    429          1.196     enami }
    430          1.196     enami 
    431          1.196     enami int
    432          1.335  christos wddetach(struct device *self, int flags)
    433          1.196     enami {
    434          1.360      cube 	struct wd_softc *sc = device_private(self);
    435          1.213  drochner 	int s, bmaj, cmaj, i, mn;
    436          1.196     enami 
    437          1.196     enami 	/* locate the major number */
    438          1.225   gehenna 	bmaj = bdevsw_lookup_major(&wd_bdevsw);
    439          1.225   gehenna 	cmaj = cdevsw_lookup_major(&wd_cdevsw);
    440          1.196     enami 
    441          1.286   mycroft 	/* Nuke the vnodes for any open instances. */
    442          1.286   mycroft 	for (i = 0; i < MAXPARTITIONS; i++) {
    443          1.321   thorpej 		mn = WDMINOR(device_unit(self), i);
    444          1.286   mycroft 		vdevgone(bmaj, mn, mn, VBLK);
    445          1.286   mycroft 		vdevgone(cmaj, mn, mn, VCHR);
    446          1.286   mycroft 	}
    447          1.286   mycroft 
    448          1.294   thorpej 	/* Delete all of our wedges. */
    449          1.294   thorpej 	dkwedge_delall(&sc->sc_dk);
    450          1.294   thorpej 
    451          1.196     enami 	s = splbio();
    452          1.196     enami 
    453          1.259       dsl 	/* Kill off any queued buffers. */
    454          1.312      yamt 	bufq_drain(sc->sc_q);
    455          1.224   hannken 
    456          1.312      yamt 	bufq_free(sc->sc_q);
    457          1.285    bouyer 	sc->atabus->ata_killpending(sc->drvp);
    458          1.196     enami 
    459          1.196     enami 	splx(s);
    460          1.196     enami 
    461          1.196     enami 	/* Detach disk. */
    462          1.196     enami 	disk_detach(&sc->sc_dk);
    463          1.362    plunky 	disk_destroy(&sc->sc_dk);
    464          1.196     enami 
    465          1.292  drochner #ifdef WD_SOFTBADSECT
    466          1.282    bouyer 	/* Clean out the bad sector list */
    467          1.282    bouyer 	while (!SLIST_EMPTY(&sc->sc_bslist)) {
    468          1.282    bouyer 		void *head = SLIST_FIRST(&sc->sc_bslist);
    469          1.282    bouyer 		SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next);
    470          1.282    bouyer 		free(head, M_TEMP);
    471          1.282    bouyer 	}
    472          1.282    bouyer 	sc->sc_bscount = 0;
    473          1.292  drochner #endif
    474          1.282    bouyer 
    475          1.351  jmcneill 	pmf_device_deregister(self);
    476          1.196     enami 
    477          1.196     enami #if NRND > 0
    478          1.196     enami 	/* Unhook the entropy source. */
    479          1.196     enami 	rnd_detach_source(&sc->rnd_source);
    480          1.196     enami #endif
    481          1.196     enami 
    482          1.284    bouyer 	sc->drvp->drive_flags = 0; /* no drive any more here */
    483          1.283    bouyer 
    484          1.196     enami 	return (0);
    485            1.1       cgd }
    486            1.1       cgd 
    487           1.64   mycroft /*
    488          1.135   mycroft  * Read/write routine for a buffer.  Validates the arguments and schedules the
    489          1.135   mycroft  * transfer.  Does not wait for the transfer to complete.
    490            1.1       cgd  */
    491           1.64   mycroft void
    492          1.259       dsl wdstrategy(struct buf *bp)
    493            1.1       cgd {
    494          1.360      cube 	struct wd_softc *wd =
    495          1.363   tsutsui 	    device_lookup_private(&wd_cd, WDUNIT(bp->b_dev));
    496          1.202   thorpej 	struct disklabel *lp = wd->sc_dk.dk_label;
    497          1.202   thorpej 	daddr_t blkno;
    498           1.37   mycroft 	int s;
    499          1.202   thorpej 
    500          1.360      cube 	ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)),
    501          1.182    bouyer 	    DEBUG_XFERS);
    502          1.259       dsl 
    503          1.135   mycroft 	/* Valid request?  */
    504          1.135   mycroft 	if (bp->b_blkno < 0 ||
    505          1.202   thorpej 	    (bp->b_bcount % lp->d_secsize) != 0 ||
    506          1.202   thorpej 	    (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) {
    507            1.1       cgd 		bp->b_error = EINVAL;
    508          1.342        ad 		goto done;
    509            1.1       cgd 	}
    510          1.259       dsl 
    511          1.135   mycroft 	/* If device invalidated (e.g. media change, door open), error. */
    512          1.181    bouyer 	if ((wd->sc_flags & WDF_LOADED) == 0) {
    513          1.135   mycroft 		bp->b_error = EIO;
    514          1.342        ad 		goto done;
    515          1.135   mycroft 	}
    516          1.135   mycroft 
    517           1.93   mycroft 	/* If it's a null transfer, return immediately. */
    518           1.93   mycroft 	if (bp->b_bcount == 0)
    519           1.93   mycroft 		goto done;
    520           1.93   mycroft 
    521          1.128   mycroft 	/*
    522          1.128   mycroft 	 * Do bounds checking, adjust transfer. if error, process.
    523          1.128   mycroft 	 * If end of partition, just return.
    524          1.128   mycroft 	 */
    525          1.240      fvdl 	if (WDPART(bp->b_dev) == RAW_PART) {
    526          1.240      fvdl 		if (bounds_check_with_mediasize(bp, DEV_BSIZE,
    527          1.240      fvdl 		    wd->sc_capacity) <= 0)
    528          1.240      fvdl 			goto done;
    529          1.240      fvdl 	} else {
    530          1.252   thorpej 		if (bounds_check_with_label(&wd->sc_dk, bp,
    531          1.240      fvdl 		    (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0)
    532          1.240      fvdl 			goto done;
    533          1.240      fvdl 	}
    534          1.202   thorpej 
    535          1.202   thorpej 	/*
    536          1.202   thorpej 	 * Now convert the block number to absolute and put it in
    537          1.202   thorpej 	 * terms of the device's logical block size.
    538          1.202   thorpej 	 */
    539          1.202   thorpej 	if (lp->d_secsize >= DEV_BSIZE)
    540          1.202   thorpej 		blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE);
    541          1.202   thorpej 	else
    542          1.202   thorpej 		blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize);
    543          1.202   thorpej 
    544          1.202   thorpej 	if (WDPART(bp->b_dev) != RAW_PART)
    545          1.202   thorpej 		blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset;
    546          1.202   thorpej 
    547          1.202   thorpej 	bp->b_rawblkno = blkno;
    548          1.202   thorpej 
    549          1.292  drochner #ifdef WD_SOFTBADSECT
    550          1.241   darrenr 	/*
    551          1.241   darrenr 	 * If the transfer about to be attempted contains only a block that
    552          1.241   darrenr 	 * is known to be bad then return an error for the transfer without
    553          1.241   darrenr 	 * even attempting to start a transfer up under the premis that we
    554          1.241   darrenr 	 * will just end up doing more retries for a transfer that will end
    555          1.241   darrenr 	 * up failing again.
    556          1.241   darrenr 	 * XXX:SMP - mutex required to protect with DIOCBSFLUSH
    557          1.241   darrenr 	 */
    558          1.241   darrenr 	if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) {
    559          1.241   darrenr 		struct disk_badsectors *dbs;
    560          1.278   mycroft 		daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1;
    561          1.241   darrenr 
    562          1.241   darrenr 		SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next)
    563          1.243   darrenr 			if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) ||
    564          1.245   darrenr 			    (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){
    565          1.245   darrenr 				bp->b_error = EIO;
    566          1.343      taca 				goto done;
    567          1.245   darrenr 			}
    568          1.241   darrenr 	}
    569          1.292  drochner #endif
    570          1.241   darrenr 
    571           1.64   mycroft 	/* Queue transfer on drive, activate drive and controller if idle. */
    572            1.1       cgd 	s = splbio();
    573          1.312      yamt 	BUFQ_PUT(wd->sc_q, bp);
    574          1.163    bouyer 	wdstart(wd);
    575            1.1       cgd 	splx(s);
    576           1.64   mycroft 	return;
    577            1.1       cgd done:
    578           1.64   mycroft 	/* Toss transfer; we're done early. */
    579          1.135   mycroft 	bp->b_resid = bp->b_bcount;
    580            1.1       cgd 	biodone(bp);
    581            1.1       cgd }
    582            1.1       cgd 
    583            1.1       cgd /*
    584          1.135   mycroft  * Queue a drive for I/O.
    585            1.1       cgd  */
    586          1.108   mycroft void
    587          1.259       dsl wdstart(void *arg)
    588            1.1       cgd {
    589          1.163    bouyer 	struct wd_softc *wd = arg;
    590          1.200   thorpej 	struct buf *bp = NULL;
    591          1.163    bouyer 
    592          1.360      cube 	ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)),
    593          1.182    bouyer 	    DEBUG_XFERS);
    594          1.181    bouyer 	while (wd->openings > 0) {
    595          1.163    bouyer 
    596          1.163    bouyer 		/* Is there a buf for us ? */
    597          1.312      yamt 		if ((bp = BUFQ_GET(wd->sc_q)) == NULL)
    598          1.200   thorpej 			return;
    599          1.259       dsl 
    600          1.259       dsl 		/*
    601          1.163    bouyer 		 * Make the command. First lock the device
    602          1.163    bouyer 		 */
    603          1.181    bouyer 		wd->openings--;
    604          1.181    bouyer 
    605          1.181    bouyer 		wd->retries = 0;
    606          1.181    bouyer 		__wdstart(wd, bp);
    607          1.181    bouyer 	}
    608          1.181    bouyer }
    609          1.181    bouyer 
    610          1.239   thorpej static void
    611          1.239   thorpej wd_split_mod15_write(struct buf *bp)
    612          1.239   thorpej {
    613          1.239   thorpej 	struct buf *obp = bp->b_private;
    614          1.360      cube 	struct wd_softc *sc =
    615          1.363   tsutsui 	    device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev));
    616  1.363.8.1.4.1      matt 	int s;
    617          1.239   thorpej 
    618          1.342        ad 	if (__predict_false(bp->b_error != 0)) {
    619          1.239   thorpej 		/*
    620          1.239   thorpej 		 * Propagate the error.  If this was the first half of
    621          1.239   thorpej 		 * the original transfer, make sure to account for that
    622          1.239   thorpej 		 * in the residual.
    623          1.239   thorpej 		 */
    624          1.239   thorpej 		if (bp->b_data == obp->b_data)
    625          1.239   thorpej 			bp->b_resid += bp->b_bcount;
    626          1.239   thorpej 		goto done;
    627          1.239   thorpej 	}
    628          1.239   thorpej 
    629          1.239   thorpej 	/*
    630          1.239   thorpej 	 * If this was the second half of the transfer, we're all done!
    631          1.239   thorpej 	 */
    632          1.239   thorpej 	if (bp->b_data != obp->b_data)
    633          1.239   thorpej 		goto done;
    634          1.239   thorpej 
    635          1.239   thorpej 	/*
    636          1.239   thorpej 	 * Advance the pointer to the second half and issue that command
    637          1.239   thorpej 	 * using the same opening.
    638          1.239   thorpej 	 */
    639          1.355        ad 	bp->b_flags = obp->b_flags;
    640          1.355        ad 	bp->b_oflags = obp->b_oflags;
    641          1.355        ad 	bp->b_cflags = obp->b_cflags;
    642          1.337  christos 	bp->b_data = (char *)bp->b_data + bp->b_bcount;
    643          1.239   thorpej 	bp->b_blkno += (bp->b_bcount / 512);
    644          1.239   thorpej 	bp->b_rawblkno += (bp->b_bcount / 512);
    645  1.363.8.1.4.1      matt 	s = splbio();
    646          1.239   thorpej 	__wdstart(sc, bp);
    647  1.363.8.1.4.1      matt 	splx(s);
    648          1.239   thorpej 	return;
    649          1.239   thorpej 
    650          1.239   thorpej  done:
    651          1.239   thorpej 	obp->b_error = bp->b_error;
    652          1.239   thorpej 	obp->b_resid = bp->b_resid;
    653  1.363.8.1.4.1      matt 	s = splbio();
    654          1.316      yamt 	putiobuf(bp);
    655          1.239   thorpej 	biodone(obp);
    656          1.239   thorpej 	sc->openings++;
    657  1.363.8.1.4.1      matt 	splx(s);
    658          1.239   thorpej 	/* wddone() will call wdstart() */
    659          1.239   thorpej }
    660          1.239   thorpej 
    661          1.181    bouyer void
    662          1.259       dsl __wdstart(struct wd_softc *wd, struct buf *bp)
    663          1.181    bouyer {
    664          1.202   thorpej 
    665          1.239   thorpej 	/*
    666          1.239   thorpej 	 * Deal with the "split mod15 write" quirk.  We just divide the
    667          1.239   thorpej 	 * transfer in two, doing the first half and then then second half
    668          1.239   thorpej 	 * with the same command opening.
    669          1.239   thorpej 	 *
    670          1.239   thorpej 	 * Note we MUST do this here, because we can't let insertion
    671          1.239   thorpej 	 * into the bufq cause the transfers to be re-merged.
    672          1.239   thorpej 	 */
    673          1.239   thorpej 	if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 &&
    674          1.239   thorpej 			    (bp->b_flags & B_READ) == 0 &&
    675          1.239   thorpej 			    bp->b_bcount > 512 &&
    676          1.239   thorpej 			    ((bp->b_bcount / 512) % 15) == 1)) {
    677          1.239   thorpej 		struct buf *nbp;
    678          1.239   thorpej 
    679          1.239   thorpej 		/* already at splbio */
    680          1.355        ad 		nbp = getiobuf(NULL, false);
    681          1.239   thorpej 		if (__predict_false(nbp == NULL)) {
    682          1.239   thorpej 			/* No memory -- fail the iop. */
    683          1.239   thorpej 			bp->b_error = ENOMEM;
    684          1.239   thorpej 			bp->b_resid = bp->b_bcount;
    685          1.239   thorpej 			biodone(bp);
    686          1.239   thorpej 			wd->openings++;
    687          1.239   thorpej 			return;
    688          1.239   thorpej 		}
    689          1.239   thorpej 
    690          1.239   thorpej 		nbp->b_error = 0;
    691          1.239   thorpej 		nbp->b_proc = bp->b_proc;
    692          1.239   thorpej 		nbp->b_dev = bp->b_dev;
    693          1.239   thorpej 
    694          1.239   thorpej 		nbp->b_bcount = bp->b_bcount / 2;
    695          1.239   thorpej 		nbp->b_bufsize = bp->b_bcount / 2;
    696          1.239   thorpej 		nbp->b_data = bp->b_data;
    697          1.239   thorpej 
    698          1.239   thorpej 		nbp->b_blkno = bp->b_blkno;
    699          1.239   thorpej 		nbp->b_rawblkno = bp->b_rawblkno;
    700          1.239   thorpej 
    701          1.355        ad 		nbp->b_flags = bp->b_flags;
    702          1.355        ad 		nbp->b_oflags = bp->b_oflags;
    703          1.355        ad 		nbp->b_cflags = bp->b_cflags;
    704          1.239   thorpej 		nbp->b_iodone = wd_split_mod15_write;
    705          1.239   thorpej 
    706          1.239   thorpej 		/* Put ptr to orig buf in b_private and use new buf */
    707          1.239   thorpej 		nbp->b_private = bp;
    708          1.273      yamt 
    709          1.273      yamt 		BIO_COPYPRIO(nbp, bp);
    710          1.273      yamt 
    711          1.239   thorpej 		bp = nbp;
    712          1.239   thorpej 	}
    713          1.239   thorpej 
    714          1.202   thorpej 	wd->sc_wdc_bio.blkno = bp->b_rawblkno;
    715  1.363.8.1.4.1      matt 	wd->sc_wdc_bio.bcount = bp->b_bcount;
    716  1.363.8.1.4.1      matt 	wd->sc_wdc_bio.databuf = bp->b_data;
    717          1.181    bouyer 	wd->sc_wdc_bio.blkdone =0;
    718          1.181    bouyer 	wd->sc_bp = bp;
    719          1.181    bouyer 	/*
    720          1.181    bouyer 	 * If we're retrying, retry in single-sector mode. This will give us
    721          1.181    bouyer 	 * the sector number of the problem, and will eventually allow the
    722          1.184    bouyer 	 * transfer to succeed.
    723          1.181    bouyer 	 */
    724          1.279   mycroft 	if (wd->retries >= WDIORETRIES_SINGLE)
    725          1.181    bouyer 		wd->sc_wdc_bio.flags = ATA_SINGLE;
    726          1.181    bouyer 	else
    727          1.181    bouyer 		wd->sc_wdc_bio.flags = 0;
    728          1.295    bouyer 	if (wd->sc_flags & WDF_LBA48 &&
    729  1.363.8.1.4.1      matt 	    (wd->sc_wdc_bio.blkno +
    730  1.363.8.1.4.1      matt 	     wd->sc_wdc_bio.bcount / wd->sc_dk.dk_label->d_secsize) >
    731  1.363.8.1.4.1      matt 	    wd->sc_capacity28)
    732          1.220  christos 		wd->sc_wdc_bio.flags |= ATA_LBA48;
    733          1.181    bouyer 	if (wd->sc_flags & WDF_LBA)
    734          1.181    bouyer 		wd->sc_wdc_bio.flags |= ATA_LBA;
    735          1.181    bouyer 	if (bp->b_flags & B_READ)
    736          1.181    bouyer 		wd->sc_wdc_bio.flags |= ATA_READ;
    737          1.181    bouyer 	/* Instrumentation. */
    738          1.181    bouyer 	disk_busy(&wd->sc_dk);
    739          1.217    bouyer 	switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) {
    740          1.288   thorpej 	case ATACMD_TRY_AGAIN:
    741          1.203   thorpej 		callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd);
    742          1.181    bouyer 		break;
    743          1.288   thorpej 	case ATACMD_QUEUED:
    744          1.288   thorpej 	case ATACMD_COMPLETE:
    745          1.181    bouyer 		break;
    746          1.181    bouyer 	default:
    747          1.217    bouyer 		panic("__wdstart: bad return code from ata_bio()");
    748          1.181    bouyer 	}
    749          1.181    bouyer }
    750          1.181    bouyer 
    751          1.181    bouyer void
    752          1.259       dsl wddone(void *v)
    753          1.181    bouyer {
    754          1.360      cube 	struct wd_softc *wd = device_private(v);
    755          1.181    bouyer 	struct buf *bp = wd->sc_bp;
    756          1.221      yamt 	const char *errmsg;
    757          1.221      yamt 	int do_perror = 0;
    758          1.349     itohy 
    759          1.360      cube 	ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)),
    760          1.182    bouyer 	    DEBUG_XFERS);
    761          1.214     bjh21 	if (bp == NULL)
    762          1.214     bjh21 		return;
    763          1.181    bouyer 	bp->b_resid = wd->sc_wdc_bio.bcount;
    764          1.181    bouyer 	switch (wd->sc_wdc_bio.error) {
    765          1.181    bouyer 	case ERR_DMA:
    766          1.221      yamt 		errmsg = "DMA error";
    767          1.181    bouyer 		goto retry;
    768          1.181    bouyer 	case ERR_DF:
    769          1.221      yamt 		errmsg = "device fault";
    770          1.181    bouyer 		goto retry;
    771          1.181    bouyer 	case TIMEOUT:
    772          1.221      yamt 		errmsg = "device timeout";
    773          1.181    bouyer 		goto retry;
    774          1.281    bouyer 	case ERR_RESET:
    775          1.281    bouyer 		errmsg = "channel reset";
    776          1.281    bouyer 		goto retry2;
    777          1.181    bouyer 	case ERROR:
    778          1.181    bouyer 		/* Don't care about media change bits */
    779          1.181    bouyer 		if (wd->sc_wdc_bio.r_error != 0 &&
    780          1.181    bouyer 		    (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0)
    781          1.181    bouyer 			goto noerror;
    782          1.221      yamt 		errmsg = "error";
    783          1.221      yamt 		do_perror = 1;
    784          1.181    bouyer retry:		/* Just reset and retry. Can we do more ? */
    785          1.293    bouyer 		(*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD);
    786          1.281    bouyer retry2:
    787          1.221      yamt 		diskerr(bp, "wd", errmsg, LOG_PRINTF,
    788          1.181    bouyer 		    wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label);
    789          1.221      yamt 		if (wd->retries < WDIORETRIES)
    790          1.345    bouyer 			printf(", retrying");
    791          1.345    bouyer 		printf("\n");
    792          1.221      yamt 		if (do_perror)
    793          1.221      yamt 			wdperror(wd);
    794          1.221      yamt 		if (wd->retries < WDIORETRIES) {
    795          1.221      yamt 			wd->retries++;
    796          1.203   thorpej 			callout_reset(&wd->sc_restart_ch, RECOVERYTIME,
    797          1.203   thorpej 			    wdrestart, wd);
    798          1.181    bouyer 			return;
    799          1.181    bouyer 		}
    800          1.241   darrenr 
    801          1.292  drochner #ifdef WD_SOFTBADSECT
    802          1.241   darrenr 		/*
    803          1.241   darrenr 		 * Not all errors indicate a failed block but those that do,
    804          1.241   darrenr 		 * put the block on the bad-block list for the device.  Only
    805          1.241   darrenr 		 * do this for reads because the drive should do it for writes,
    806          1.241   darrenr 		 * itself, according to Manuel.
    807          1.241   darrenr 		 */
    808          1.242    dogcow 		if ((bp->b_flags & B_READ) &&
    809          1.241   darrenr 		    ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) ||
    810          1.242    dogcow 	     	     (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) {
    811          1.241   darrenr 			struct disk_badsectors *dbs;
    812          1.241   darrenr 
    813          1.241   darrenr 			dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK);
    814          1.241   darrenr 			dbs->dbs_min = bp->b_rawblkno;
    815          1.278   mycroft 			dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1;
    816          1.241   darrenr 			microtime(&dbs->dbs_failedat);
    817          1.241   darrenr 			SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next);
    818          1.243   darrenr 			wd->sc_bscount++;
    819          1.241   darrenr 		}
    820          1.292  drochner #endif
    821          1.181    bouyer 		bp->b_error = EIO;
    822          1.181    bouyer 		break;
    823          1.181    bouyer 	case NOERROR:
    824          1.181    bouyer noerror:	if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0)
    825          1.360      cube 			aprint_error_dev(wd->sc_dev,
    826          1.360      cube 			    "soft error (corrected)\n");
    827          1.197     enami 		break;
    828          1.197     enami 	case ERR_NODEV:
    829          1.197     enami 		bp->b_error = EIO;
    830          1.197     enami 		break;
    831           1.64   mycroft 	}
    832          1.232       mrg 	disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid),
    833          1.232       mrg 	    (bp->b_flags & B_READ));
    834          1.181    bouyer #if NRND > 0
    835          1.181    bouyer 	rnd_add_uint32(&wd->rnd_source, bp->b_blkno);
    836          1.181    bouyer #endif
    837          1.239   thorpej 	/* XXX Yuck, but we don't want to increment openings in this case */
    838          1.355        ad 	if (__predict_false(bp->b_iodone == wd_split_mod15_write))
    839          1.239   thorpej 		biodone(bp);
    840          1.239   thorpej 	else {
    841          1.239   thorpej 		biodone(bp);
    842          1.239   thorpej 		wd->openings++;
    843          1.239   thorpej 	}
    844          1.181    bouyer 	wdstart(wd);
    845          1.181    bouyer }
    846          1.181    bouyer 
    847          1.181    bouyer void
    848          1.259       dsl wdrestart(void *v)
    849          1.181    bouyer {
    850          1.181    bouyer 	struct wd_softc *wd = v;
    851          1.181    bouyer 	struct buf *bp = wd->sc_bp;
    852          1.181    bouyer 	int s;
    853          1.350     itohy 
    854          1.360      cube 	ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)),
    855          1.182    bouyer 	    DEBUG_XFERS);
    856          1.181    bouyer 	s = splbio();
    857          1.181    bouyer 	__wdstart(v, bp);
    858          1.181    bouyer 	splx(s);
    859          1.141   mycroft }
    860          1.141   mycroft 
    861          1.141   mycroft int
    862          1.335  christos wdread(dev_t dev, struct uio *uio, int flags)
    863          1.141   mycroft {
    864          1.141   mycroft 
    865          1.289   thorpej 	ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS);
    866          1.141   mycroft 	return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio));
    867          1.141   mycroft }
    868          1.141   mycroft 
    869          1.141   mycroft int
    870          1.335  christos wdwrite(dev_t dev, struct uio *uio, int flags)
    871          1.141   mycroft {
    872          1.141   mycroft 
    873          1.289   thorpej 	ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS);
    874          1.141   mycroft 	return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio));
    875           1.64   mycroft }
    876           1.64   mycroft 
    877            1.1       cgd int
    878          1.335  christos wdopen(dev_t dev, int flag, int fmt, struct lwp *l)
    879            1.1       cgd {
    880          1.135   mycroft 	struct wd_softc *wd;
    881          1.208   thorpej 	int part, error;
    882          1.163    bouyer 
    883          1.289   thorpej 	ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS);
    884          1.363   tsutsui 	wd = device_lookup_private(&wd_cd, WDUNIT(dev));
    885          1.158        pk 	if (wd == NULL)
    886          1.208   thorpej 		return (ENXIO);
    887          1.187   thorpej 
    888          1.360      cube 	if (! device_is_active(wd->sc_dev))
    889          1.283    bouyer 		return (ENODEV);
    890          1.283    bouyer 
    891          1.294   thorpej 	part = WDPART(dev);
    892          1.294   thorpej 
    893          1.341        ad 	mutex_enter(&wd->sc_dk.dk_openlock);
    894          1.294   thorpej 
    895          1.294   thorpej 	/*
    896          1.294   thorpej 	 * If there are wedges, and this is not RAW_PART, then we
    897          1.294   thorpej 	 * need to fail.
    898          1.294   thorpej 	 */
    899          1.294   thorpej 	if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) {
    900          1.294   thorpej 		error = EBUSY;
    901          1.294   thorpej 		goto bad1;
    902          1.294   thorpej 	}
    903          1.294   thorpej 
    904          1.187   thorpej 	/*
    905          1.187   thorpej 	 * If this is the first open of this device, add a reference
    906          1.187   thorpej 	 * to the adapter.
    907          1.187   thorpej 	 */
    908          1.187   thorpej 	if (wd->sc_dk.dk_openmask == 0 &&
    909          1.217    bouyer 	    (error = wd->atabus->ata_addref(wd->drvp)) != 0)
    910          1.294   thorpej 		goto bad1;
    911            1.3   deraadt 
    912          1.109   mycroft 	if (wd->sc_dk.dk_openmask != 0) {
    913          1.109   mycroft 		/*
    914          1.109   mycroft 		 * If any partition is open, but the disk has been invalidated,
    915          1.109   mycroft 		 * disallow further opens.
    916          1.109   mycroft 		 */
    917          1.181    bouyer 		if ((wd->sc_flags & WDF_LOADED) == 0) {
    918          1.136   mycroft 			error = EIO;
    919          1.294   thorpej 			goto bad2;
    920          1.136   mycroft 		}
    921          1.109   mycroft 	} else {
    922          1.181    bouyer 		if ((wd->sc_flags & WDF_LOADED) == 0) {
    923          1.181    bouyer 			wd->sc_flags |= WDF_LOADED;
    924          1.108   mycroft 
    925          1.108   mycroft 			/* Load the physical device parameters. */
    926          1.183    bouyer 			wd_get_params(wd, AT_WAIT, &wd->sc_params);
    927          1.108   mycroft 
    928          1.108   mycroft 			/* Load the partition info if not already loaded. */
    929          1.108   mycroft 			wdgetdisklabel(wd);
    930          1.108   mycroft 		}
    931          1.135   mycroft 	}
    932          1.108   mycroft 
    933          1.109   mycroft 	/* Check that the partition exists. */
    934           1.93   mycroft 	if (part != RAW_PART &&
    935          1.144   thorpej 	    (part >= wd->sc_dk.dk_label->d_npartitions ||
    936          1.144   thorpej 	     wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) {
    937           1.93   mycroft 		error = ENXIO;
    938          1.294   thorpej 		goto bad2;
    939           1.93   mycroft 	}
    940          1.259       dsl 
    941           1.64   mycroft 	/* Insure only one open at a time. */
    942            1.3   deraadt 	switch (fmt) {
    943            1.3   deraadt 	case S_IFCHR:
    944           1.94   mycroft 		wd->sc_dk.dk_copenmask |= (1 << part);
    945            1.3   deraadt 		break;
    946            1.3   deraadt 	case S_IFBLK:
    947           1.94   mycroft 		wd->sc_dk.dk_bopenmask |= (1 << part);
    948            1.3   deraadt 		break;
    949            1.3   deraadt 	}
    950          1.181    bouyer 	wd->sc_dk.dk_openmask =
    951          1.181    bouyer 	    wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask;
    952           1.60   mycroft 
    953          1.341        ad 	mutex_exit(&wd->sc_dk.dk_openlock);
    954           1.37   mycroft 	return 0;
    955           1.93   mycroft 
    956          1.294   thorpej  bad2:
    957          1.187   thorpej 	if (wd->sc_dk.dk_openmask == 0)
    958          1.217    bouyer 		wd->atabus->ata_delref(wd->drvp);
    959          1.294   thorpej  bad1:
    960          1.341        ad 	mutex_exit(&wd->sc_dk.dk_openlock);
    961           1.93   mycroft 	return error;
    962            1.1       cgd }
    963            1.1       cgd 
    964          1.135   mycroft int
    965          1.335  christos wdclose(dev_t dev, int flag, int fmt, struct lwp *l)
    966          1.135   mycroft {
    967          1.360      cube 	struct wd_softc *wd =
    968          1.363   tsutsui 	    device_lookup_private(&wd_cd, WDUNIT(dev));
    969          1.135   mycroft 	int part = WDPART(dev);
    970          1.259       dsl 
    971          1.289   thorpej 	ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS);
    972          1.294   thorpej 
    973          1.341        ad 	mutex_enter(&wd->sc_dk.dk_openlock);
    974          1.135   mycroft 
    975          1.135   mycroft 	switch (fmt) {
    976          1.135   mycroft 	case S_IFCHR:
    977          1.135   mycroft 		wd->sc_dk.dk_copenmask &= ~(1 << part);
    978          1.135   mycroft 		break;
    979          1.135   mycroft 	case S_IFBLK:
    980          1.135   mycroft 		wd->sc_dk.dk_bopenmask &= ~(1 << part);
    981          1.135   mycroft 		break;
    982          1.135   mycroft 	}
    983          1.181    bouyer 	wd->sc_dk.dk_openmask =
    984          1.181    bouyer 	    wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask;
    985          1.135   mycroft 
    986          1.135   mycroft 	if (wd->sc_dk.dk_openmask == 0) {
    987          1.194    bouyer 		wd_flushcache(wd, AT_WAIT);
    988          1.187   thorpej 
    989          1.199       leo 		if (! (wd->sc_flags & WDF_KLABEL))
    990          1.199       leo 			wd->sc_flags &= ~WDF_LOADED;
    991          1.199       leo 
    992          1.217    bouyer 		wd->atabus->ata_delref(wd->drvp);
    993          1.135   mycroft 	}
    994          1.135   mycroft 
    995          1.341        ad 	mutex_exit(&wd->sc_dk.dk_openlock);
    996          1.135   mycroft 	return 0;
    997          1.135   mycroft }
    998          1.135   mycroft 
    999          1.108   mycroft void
   1000          1.259       dsl wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp)
   1001          1.108   mycroft {
   1002          1.163    bouyer 
   1003          1.289   thorpej 	ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS);
   1004          1.181    bouyer 	memset(lp, 0, sizeof(struct disklabel));
   1005          1.108   mycroft 
   1006          1.142   mycroft 	lp->d_secsize = DEV_BSIZE;
   1007          1.181    bouyer 	lp->d_ntracks = wd->sc_params.atap_heads;
   1008          1.181    bouyer 	lp->d_nsectors = wd->sc_params.atap_sectors;
   1009          1.260    bouyer 	lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity /
   1010          1.260    bouyer 		(wd->sc_params.atap_heads * wd->sc_params.atap_sectors) :
   1011          1.260    bouyer 		wd->sc_params.atap_cylinders;
   1012          1.142   mycroft 	lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
   1013          1.108   mycroft 
   1014          1.198       leo 	if (strcmp(wd->sc_params.atap_model, "ST506") == 0)
   1015          1.181    bouyer 		lp->d_type = DTYPE_ST506;
   1016          1.198       leo 	else
   1017          1.181    bouyer 		lp->d_type = DTYPE_ESDI;
   1018          1.198       leo 
   1019          1.181    bouyer 	strncpy(lp->d_typename, wd->sc_params.atap_model, 16);
   1020          1.180  drochner 	strncpy(lp->d_packname, "fictitious", 16);
   1021          1.240      fvdl 	if (wd->sc_capacity > UINT32_MAX)
   1022          1.240      fvdl 		lp->d_secperunit = UINT32_MAX;
   1023          1.240      fvdl 	else
   1024          1.240      fvdl 		lp->d_secperunit = wd->sc_capacity;
   1025          1.142   mycroft 	lp->d_rpm = 3600;
   1026          1.142   mycroft 	lp->d_interleave = 1;
   1027          1.142   mycroft 	lp->d_flags = 0;
   1028          1.142   mycroft 
   1029          1.142   mycroft 	lp->d_partitions[RAW_PART].p_offset = 0;
   1030          1.142   mycroft 	lp->d_partitions[RAW_PART].p_size =
   1031          1.259       dsl 	    lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
   1032          1.142   mycroft 	lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED;
   1033          1.142   mycroft 	lp->d_npartitions = RAW_PART + 1;
   1034          1.142   mycroft 
   1035          1.142   mycroft 	lp->d_magic = DISKMAGIC;
   1036          1.142   mycroft 	lp->d_magic2 = DISKMAGIC;
   1037          1.142   mycroft 	lp->d_checksum = dkcksum(lp);
   1038          1.164   thorpej }
   1039          1.164   thorpej 
   1040          1.164   thorpej /*
   1041          1.164   thorpej  * Fabricate a default disk label, and try to read the correct one.
   1042          1.164   thorpej  */
   1043          1.164   thorpej void
   1044          1.259       dsl wdgetdisklabel(struct wd_softc *wd)
   1045          1.164   thorpej {
   1046          1.164   thorpej 	struct disklabel *lp = wd->sc_dk.dk_label;
   1047          1.251       dsl 	const char *errstring;
   1048          1.291   thorpej 	int s;
   1049          1.164   thorpej 
   1050          1.289   thorpej 	ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS);
   1051          1.164   thorpej 
   1052          1.181    bouyer 	memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel));
   1053          1.164   thorpej 
   1054          1.164   thorpej 	wdgetdefaultlabel(wd, lp);
   1055          1.108   mycroft 
   1056          1.181    bouyer 	wd->sc_badsect[0] = -1;
   1057          1.113   mycroft 
   1058          1.291   thorpej 	if (wd->drvp->state > RESET) {
   1059          1.291   thorpej 		s = splbio();
   1060          1.183    bouyer 		wd->drvp->drive_flags |= DRIVE_RESET;
   1061          1.291   thorpej 		splx(s);
   1062          1.291   thorpej 	}
   1063          1.360      cube 	errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev),
   1064          1.321   thorpej 				  RAW_PART), wdstrategy, lp,
   1065          1.321   thorpej 				  wd->sc_dk.dk_cpulabel);
   1066          1.108   mycroft 	if (errstring) {
   1067          1.108   mycroft 		/*
   1068          1.108   mycroft 		 * This probably happened because the drive's default
   1069          1.108   mycroft 		 * geometry doesn't match the DOS geometry.  We
   1070          1.108   mycroft 		 * assume the DOS geometry is now in the label and try
   1071          1.108   mycroft 		 * again.  XXX This is a kluge.
   1072          1.108   mycroft 		 */
   1073          1.291   thorpej 		if (wd->drvp->state > RESET) {
   1074          1.291   thorpej 			s = splbio();
   1075          1.183    bouyer 			wd->drvp->drive_flags |= DRIVE_RESET;
   1076          1.291   thorpej 			splx(s);
   1077          1.291   thorpej 		}
   1078          1.360      cube 		errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev),
   1079          1.181    bouyer 		    RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel);
   1080          1.108   mycroft 	}
   1081          1.108   mycroft 	if (errstring) {
   1082          1.360      cube 		aprint_error_dev(wd->sc_dev, "%s\n", errstring);
   1083          1.108   mycroft 		return;
   1084          1.108   mycroft 	}
   1085          1.108   mycroft 
   1086          1.291   thorpej 	if (wd->drvp->state > RESET) {
   1087          1.291   thorpej 		s = splbio();
   1088          1.183    bouyer 		wd->drvp->drive_flags |= DRIVE_RESET;
   1089          1.291   thorpej 		splx(s);
   1090          1.291   thorpej 	}
   1091          1.170       leo #ifdef HAS_BAD144_HANDLING
   1092          1.142   mycroft 	if ((lp->d_flags & D_BADSECT) != 0)
   1093          1.108   mycroft 		bad144intern(wd);
   1094          1.170       leo #endif
   1095          1.108   mycroft }
   1096          1.108   mycroft 
   1097          1.217    bouyer void
   1098          1.259       dsl wdperror(const struct wd_softc *wd)
   1099          1.217    bouyer {
   1100          1.221      yamt 	static const char *const errstr0_3[] = {"address mark not found",
   1101          1.217    bouyer 	    "track 0 not found", "aborted command", "media change requested",
   1102          1.217    bouyer 	    "id not found", "media changed", "uncorrectable data error",
   1103          1.217    bouyer 	    "bad block detected"};
   1104          1.221      yamt 	static const char *const errstr4_5[] = {
   1105          1.221      yamt 	    "obsolete (address mark not found)",
   1106          1.217    bouyer 	    "no media/write protected", "aborted command",
   1107          1.217    bouyer 	    "media change requested", "id not found", "media changed",
   1108          1.217    bouyer 	    "uncorrectable data error", "interface CRC error"};
   1109          1.259       dsl 	const char *const *errstr;
   1110          1.217    bouyer 	int i;
   1111          1.301  christos 	const char *sep = "";
   1112          1.217    bouyer 
   1113          1.360      cube 	const char *devname = device_xname(wd->sc_dev);
   1114          1.221      yamt 	struct ata_drive_datas *drvp = wd->drvp;
   1115          1.221      yamt 	int errno = wd->sc_wdc_bio.r_error;
   1116          1.221      yamt 
   1117          1.217    bouyer 	if (drvp->ata_vers >= 4)
   1118          1.217    bouyer 		errstr = errstr4_5;
   1119          1.217    bouyer 	else
   1120          1.217    bouyer 		errstr = errstr0_3;
   1121          1.217    bouyer 
   1122          1.221      yamt 	printf("%s: (", devname);
   1123          1.221      yamt 
   1124          1.217    bouyer 	if (errno == 0)
   1125          1.221      yamt 		printf("error not notified");
   1126          1.217    bouyer 
   1127          1.217    bouyer 	for (i = 0; i < 8; i++) {
   1128          1.217    bouyer 		if (errno & (1 << i)) {
   1129          1.221      yamt 			printf("%s%s", sep, errstr[i]);
   1130          1.217    bouyer 			sep = ", ";
   1131          1.217    bouyer 		}
   1132          1.217    bouyer 	}
   1133          1.221      yamt 	printf(")\n");
   1134          1.217    bouyer }
   1135          1.217    bouyer 
   1136            1.1       cgd int
   1137          1.337  christos wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l)
   1138            1.1       cgd {
   1139          1.360      cube 	struct wd_softc *wd =
   1140          1.363   tsutsui 	    device_lookup_private(&wd_cd, WDUNIT(dev));
   1141          1.291   thorpej 	int error = 0, s;
   1142          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1143          1.233      fvdl 	struct disklabel *newlabel = NULL;
   1144          1.211      fvdl #endif
   1145          1.163    bouyer 
   1146          1.289   thorpej 	ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS);
   1147          1.163    bouyer 
   1148          1.181    bouyer 	if ((wd->sc_flags & WDF_LOADED) == 0)
   1149          1.108   mycroft 		return EIO;
   1150          1.108   mycroft 
   1151          1.332   thorpej 	error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l);
   1152          1.332   thorpej 	if (error != EPASSTHROUGH)
   1153          1.332   thorpej 		return (error);
   1154          1.332   thorpej 
   1155          1.163    bouyer 	switch (xfer) {
   1156          1.170       leo #ifdef HAS_BAD144_HANDLING
   1157            1.1       cgd 	case DIOCSBAD:
   1158            1.3   deraadt 		if ((flag & FWRITE) == 0)
   1159           1.54   mycroft 			return EBADF;
   1160          1.144   thorpej 		wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr;
   1161          1.144   thorpej 		wd->sc_dk.dk_label->d_flags |= D_BADSECT;
   1162           1.64   mycroft 		bad144intern(wd);
   1163           1.54   mycroft 		return 0;
   1164          1.170       leo #endif
   1165          1.292  drochner #ifdef WD_SOFTBADSECT
   1166          1.241   darrenr 	case DIOCBSLIST :
   1167          1.241   darrenr 	{
   1168          1.243   darrenr 		u_int32_t count, missing, skip;
   1169          1.243   darrenr 		struct disk_badsecinfo dbsi;
   1170          1.241   darrenr 		struct disk_badsectors *dbs;
   1171          1.241   darrenr 		size_t available;
   1172          1.344   jnemeth 		uint8_t *laddr;
   1173          1.241   darrenr 
   1174          1.243   darrenr 		dbsi = *(struct disk_badsecinfo *)addr;
   1175          1.243   darrenr 		missing = wd->sc_bscount;
   1176          1.241   darrenr 		count = 0;
   1177          1.243   darrenr 		available = dbsi.dbsi_bufsize;
   1178          1.243   darrenr 		skip = dbsi.dbsi_skip;
   1179          1.344   jnemeth 		laddr = (uint8_t *)dbsi.dbsi_buffer;
   1180          1.243   darrenr 
   1181          1.243   darrenr 		/*
   1182          1.243   darrenr 		 * We start this loop with the expectation that all of the
   1183          1.243   darrenr 		 * entries will be missed and decrement this counter each
   1184          1.243   darrenr 		 * time we either skip over one (already copied out) or
   1185          1.243   darrenr 		 * we actually copy it back to user space.  The structs
   1186          1.243   darrenr 		 * holding the bad sector information are copied directly
   1187          1.243   darrenr 		 * back to user space whilst the summary is returned via
   1188          1.243   darrenr 		 * the struct passed in via the ioctl.
   1189          1.243   darrenr 		 */
   1190          1.241   darrenr 		SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) {
   1191          1.243   darrenr 			if (skip > 0) {
   1192          1.243   darrenr 				missing--;
   1193          1.243   darrenr 				skip--;
   1194          1.243   darrenr 				continue;
   1195          1.243   darrenr 			}
   1196          1.243   darrenr 			if (available < sizeof(*dbs))
   1197          1.241   darrenr 				break;
   1198          1.243   darrenr 			available -= sizeof(*dbs);
   1199          1.241   darrenr 			copyout(dbs, laddr, sizeof(*dbs));
   1200          1.241   darrenr 			laddr += sizeof(*dbs);
   1201          1.243   darrenr 			missing--;
   1202          1.241   darrenr 			count++;
   1203          1.241   darrenr 		}
   1204          1.243   darrenr 		dbsi.dbsi_left = missing;
   1205          1.243   darrenr 		dbsi.dbsi_copied = count;
   1206          1.243   darrenr 		*(struct disk_badsecinfo *)addr = dbsi;
   1207          1.241   darrenr 		return 0;
   1208          1.241   darrenr 	}
   1209          1.241   darrenr 
   1210          1.241   darrenr 	case DIOCBSFLUSH :
   1211          1.241   darrenr 		/* Clean out the bad sector list */
   1212          1.241   darrenr 		while (!SLIST_EMPTY(&wd->sc_bslist)) {
   1213          1.241   darrenr 			void *head = SLIST_FIRST(&wd->sc_bslist);
   1214          1.241   darrenr 			SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next);
   1215          1.241   darrenr 			free(head, M_TEMP);
   1216          1.241   darrenr 		}
   1217          1.243   darrenr 		wd->sc_bscount = 0;
   1218          1.241   darrenr 		return 0;
   1219          1.292  drochner #endif
   1220            1.1       cgd 	case DIOCGDINFO:
   1221          1.144   thorpej 		*(struct disklabel *)addr = *(wd->sc_dk.dk_label);
   1222           1.54   mycroft 		return 0;
   1223          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1224          1.211      fvdl 	case ODIOCGDINFO:
   1225          1.233      fvdl 		newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1226          1.233      fvdl 		if (newlabel == NULL)
   1227          1.233      fvdl 			return EIO;
   1228          1.234      fvdl 		*newlabel = *(wd->sc_dk.dk_label);
   1229          1.233      fvdl 		if (newlabel->d_npartitions <= OLDMAXPARTITIONS)
   1230          1.234      fvdl 			memcpy(addr, newlabel, sizeof (struct olddisklabel));
   1231          1.233      fvdl 		else
   1232          1.233      fvdl 			error = ENOTTY;
   1233          1.233      fvdl 		free(newlabel, M_TEMP);
   1234          1.233      fvdl 		return error;
   1235          1.211      fvdl #endif
   1236          1.211      fvdl 
   1237            1.3   deraadt 	case DIOCGPART:
   1238          1.144   thorpej 		((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label;
   1239            1.3   deraadt 		((struct partinfo *)addr)->part =
   1240          1.144   thorpej 		    &wd->sc_dk.dk_label->d_partitions[WDPART(dev)];
   1241           1.54   mycroft 		return 0;
   1242          1.259       dsl 
   1243          1.132   mycroft 	case DIOCWDINFO:
   1244            1.3   deraadt 	case DIOCSDINFO:
   1245          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1246          1.211      fvdl 	case ODIOCWDINFO:
   1247          1.211      fvdl 	case ODIOCSDINFO:
   1248          1.211      fvdl #endif
   1249          1.211      fvdl 	{
   1250          1.211      fvdl 		struct disklabel *lp;
   1251          1.211      fvdl 
   1252          1.233      fvdl 		if ((flag & FWRITE) == 0)
   1253          1.233      fvdl 			return EBADF;
   1254          1.233      fvdl 
   1255          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1256          1.211      fvdl 		if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) {
   1257          1.233      fvdl 			newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1258          1.233      fvdl 			if (newlabel == NULL)
   1259          1.233      fvdl 				return EIO;
   1260          1.233      fvdl 			memset(newlabel, 0, sizeof newlabel);
   1261          1.233      fvdl 			memcpy(newlabel, addr, sizeof (struct olddisklabel));
   1262          1.233      fvdl 			lp = newlabel;
   1263          1.211      fvdl 		} else
   1264          1.211      fvdl #endif
   1265          1.211      fvdl 		lp = (struct disklabel *)addr;
   1266          1.211      fvdl 
   1267          1.341        ad 		mutex_enter(&wd->sc_dk.dk_openlock);
   1268          1.181    bouyer 		wd->sc_flags |= WDF_LABELLING;
   1269          1.132   mycroft 
   1270          1.144   thorpej 		error = setdisklabel(wd->sc_dk.dk_label,
   1271          1.211      fvdl 		    lp, /*wd->sc_dk.dk_openmask : */0,
   1272          1.144   thorpej 		    wd->sc_dk.dk_cpulabel);
   1273            1.3   deraadt 		if (error == 0) {
   1274          1.291   thorpej 			if (wd->drvp->state > RESET) {
   1275          1.291   thorpej 				s = splbio();
   1276          1.183    bouyer 				wd->drvp->drive_flags |= DRIVE_RESET;
   1277          1.291   thorpej 				splx(s);
   1278          1.291   thorpej 			}
   1279          1.211      fvdl 			if (xfer == DIOCWDINFO
   1280          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1281          1.211      fvdl 			    || xfer == ODIOCWDINFO
   1282          1.211      fvdl #endif
   1283          1.211      fvdl 			    )
   1284          1.132   mycroft 				error = writedisklabel(WDLABELDEV(dev),
   1285          1.144   thorpej 				    wdstrategy, wd->sc_dk.dk_label,
   1286          1.144   thorpej 				    wd->sc_dk.dk_cpulabel);
   1287            1.1       cgd 		}
   1288          1.132   mycroft 
   1289          1.181    bouyer 		wd->sc_flags &= ~WDF_LABELLING;
   1290          1.341        ad 		mutex_exit(&wd->sc_dk.dk_openlock);
   1291          1.233      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1292          1.233      fvdl 		if (newlabel != NULL)
   1293          1.233      fvdl 			free(newlabel, M_TEMP);
   1294          1.233      fvdl #endif
   1295           1.54   mycroft 		return error;
   1296          1.211      fvdl 	}
   1297          1.199       leo 
   1298          1.199       leo 	case DIOCKLABEL:
   1299          1.199       leo 		if (*(int *)addr)
   1300          1.199       leo 			wd->sc_flags |= WDF_KLABEL;
   1301          1.199       leo 		else
   1302          1.199       leo 			wd->sc_flags &= ~WDF_KLABEL;
   1303          1.199       leo 		return 0;
   1304          1.259       dsl 
   1305           1.44   mycroft 	case DIOCWLABEL:
   1306            1.3   deraadt 		if ((flag & FWRITE) == 0)
   1307           1.54   mycroft 			return EBADF;
   1308           1.93   mycroft 		if (*(int *)addr)
   1309          1.181    bouyer 			wd->sc_flags |= WDF_WLABEL;
   1310           1.93   mycroft 		else
   1311          1.181    bouyer 			wd->sc_flags &= ~WDF_WLABEL;
   1312           1.54   mycroft 		return 0;
   1313          1.164   thorpej 
   1314          1.164   thorpej 	case DIOCGDEFLABEL:
   1315          1.164   thorpej 		wdgetdefaultlabel(wd, (struct disklabel *)addr);
   1316          1.164   thorpej 		return 0;
   1317          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1318          1.211      fvdl 	case ODIOCGDEFLABEL:
   1319          1.233      fvdl 		newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1320          1.233      fvdl 		if (newlabel == NULL)
   1321          1.233      fvdl 			return EIO;
   1322          1.233      fvdl 		wdgetdefaultlabel(wd, newlabel);
   1323          1.233      fvdl 		if (newlabel->d_npartitions <= OLDMAXPARTITIONS)
   1324          1.233      fvdl 			memcpy(addr, &newlabel, sizeof (struct olddisklabel));
   1325          1.233      fvdl 		else
   1326          1.233      fvdl 			error = ENOTTY;
   1327          1.233      fvdl 		free(newlabel, M_TEMP);
   1328          1.233      fvdl 		return error;
   1329          1.211      fvdl #endif
   1330          1.164   thorpej 
   1331            1.1       cgd #ifdef notyet
   1332            1.1       cgd 	case DIOCWFORMAT:
   1333            1.1       cgd 		if ((flag & FWRITE) == 0)
   1334           1.54   mycroft 			return EBADF;
   1335          1.181    bouyer 		{
   1336           1.54   mycroft 		register struct format_op *fop;
   1337           1.54   mycroft 		struct iovec aiov;
   1338           1.54   mycroft 		struct uio auio;
   1339          1.259       dsl 
   1340           1.54   mycroft 		fop = (struct format_op *)addr;
   1341           1.54   mycroft 		aiov.iov_base = fop->df_buf;
   1342           1.54   mycroft 		aiov.iov_len = fop->df_count;
   1343           1.54   mycroft 		auio.uio_iov = &aiov;
   1344           1.54   mycroft 		auio.uio_iovcnt = 1;
   1345           1.54   mycroft 		auio.uio_resid = fop->df_count;
   1346           1.54   mycroft 		auio.uio_offset =
   1347          1.181    bouyer 			fop->df_startblk * wd->sc_dk.dk_label->d_secsize;
   1348          1.320      yamt 		auio.uio_vmspace = l->l_proc->p_vmspace;
   1349           1.64   mycroft 		error = physio(wdformat, NULL, dev, B_WRITE, minphys,
   1350           1.64   mycroft 		    &auio);
   1351           1.54   mycroft 		fop->df_count -= auio.uio_resid;
   1352           1.64   mycroft 		fop->df_reg[0] = wdc->sc_status;
   1353           1.64   mycroft 		fop->df_reg[1] = wdc->sc_error;
   1354           1.54   mycroft 		return error;
   1355          1.181    bouyer 		}
   1356            1.1       cgd #endif
   1357          1.248    bouyer 	case DIOCGCACHE:
   1358          1.248    bouyer 		return wd_getcache(wd, (int *)addr);
   1359          1.248    bouyer 
   1360          1.248    bouyer 	case DIOCSCACHE:
   1361          1.248    bouyer 		return wd_setcache(wd, *(int *)addr);
   1362          1.185      kenh 
   1363          1.276    bouyer 	case DIOCCACHESYNC:
   1364          1.276    bouyer 		return wd_flushcache(wd, AT_WAIT);
   1365          1.276    bouyer 
   1366          1.186      kenh 	case ATAIOCCOMMAND:
   1367          1.185      kenh 		/*
   1368          1.185      kenh 		 * Make sure this command is (relatively) safe first
   1369          1.185      kenh 		 */
   1370          1.186      kenh 		if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 &&
   1371          1.185      kenh 		    (flag & FWRITE) == 0)
   1372          1.185      kenh 			return (EBADF);
   1373          1.185      kenh 		{
   1374          1.185      kenh 		struct wd_ioctl *wi;
   1375          1.186      kenh 		atareq_t *atareq = (atareq_t *) addr;
   1376          1.301  christos 		int error1;
   1377          1.185      kenh 
   1378          1.185      kenh 		wi = wi_get();
   1379          1.185      kenh 		wi->wi_softc = wd;
   1380          1.186      kenh 		wi->wi_atareq = *atareq;
   1381          1.185      kenh 
   1382          1.186      kenh 		if (atareq->datalen && atareq->flags &
   1383          1.186      kenh 		    (ATACMD_READ | ATACMD_WRITE)) {
   1384          1.339       dsl 			void *tbuf;
   1385          1.339       dsl 			if (atareq->datalen < DEV_BSIZE
   1386          1.339       dsl 			    && atareq->command == WDCC_IDENTIFY) {
   1387          1.339       dsl 				tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK);
   1388          1.339       dsl 				wi->wi_iov.iov_base = tbuf;
   1389          1.339       dsl 				wi->wi_iov.iov_len = DEV_BSIZE;
   1390          1.339       dsl 				UIO_SETUP_SYSSPACE(&wi->wi_uio);
   1391          1.339       dsl 			} else {
   1392          1.339       dsl 				tbuf = NULL;
   1393          1.339       dsl 				wi->wi_iov.iov_base = atareq->databuf;
   1394          1.339       dsl 				wi->wi_iov.iov_len = atareq->datalen;
   1395          1.339       dsl 				wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace;
   1396          1.339       dsl 			}
   1397          1.185      kenh 			wi->wi_uio.uio_iov = &wi->wi_iov;
   1398          1.185      kenh 			wi->wi_uio.uio_iovcnt = 1;
   1399          1.186      kenh 			wi->wi_uio.uio_resid = atareq->datalen;
   1400          1.185      kenh 			wi->wi_uio.uio_offset = 0;
   1401          1.185      kenh 			wi->wi_uio.uio_rw =
   1402          1.186      kenh 			    (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE;
   1403          1.301  christos 			error1 = physio(wdioctlstrategy, &wi->wi_bp, dev,
   1404          1.186      kenh 			    (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE,
   1405          1.185      kenh 			    minphys, &wi->wi_uio);
   1406          1.339       dsl 			if (tbuf != NULL && error1 == 0) {
   1407          1.339       dsl 				error1 = copyout(tbuf, atareq->databuf,
   1408          1.339       dsl 				    atareq->datalen);
   1409          1.339       dsl 				free(tbuf, M_TEMP);
   1410          1.339       dsl 			}
   1411          1.185      kenh 		} else {
   1412          1.185      kenh 			/* No need to call physio if we don't have any
   1413          1.185      kenh 			   user data */
   1414          1.185      kenh 			wi->wi_bp.b_flags = 0;
   1415          1.185      kenh 			wi->wi_bp.b_data = 0;
   1416          1.185      kenh 			wi->wi_bp.b_bcount = 0;
   1417          1.185      kenh 			wi->wi_bp.b_dev = 0;
   1418          1.314  christos 			wi->wi_bp.b_proc = l->l_proc;
   1419          1.185      kenh 			wdioctlstrategy(&wi->wi_bp);
   1420          1.301  christos 			error1 = wi->wi_bp.b_error;
   1421          1.185      kenh 		}
   1422          1.186      kenh 		*atareq = wi->wi_atareq;
   1423          1.185      kenh 		wi_free(wi);
   1424          1.301  christos 		return(error1);
   1425          1.185      kenh 		}
   1426          1.185      kenh 
   1427          1.294   thorpej 	case DIOCAWEDGE:
   1428          1.294   thorpej 	    {
   1429          1.294   thorpej 	    	struct dkwedge_info *dkw = (void *) addr;
   1430          1.294   thorpej 
   1431          1.294   thorpej 		if ((flag & FWRITE) == 0)
   1432          1.294   thorpej 			return (EBADF);
   1433          1.294   thorpej 
   1434          1.294   thorpej 		/* If the ioctl happens here, the parent is us. */
   1435          1.360      cube 		strcpy(dkw->dkw_parent, device_xname(wd->sc_dev));
   1436          1.294   thorpej 		return (dkwedge_add(dkw));
   1437          1.294   thorpej 	    }
   1438          1.294   thorpej 
   1439          1.294   thorpej 	case DIOCDWEDGE:
   1440          1.294   thorpej 	    {
   1441          1.294   thorpej 	    	struct dkwedge_info *dkw = (void *) addr;
   1442          1.294   thorpej 
   1443          1.294   thorpej 		if ((flag & FWRITE) == 0)
   1444          1.294   thorpej 			return (EBADF);
   1445          1.294   thorpej 
   1446          1.294   thorpej 		/* If the ioctl happens here, the parent is us. */
   1447          1.360      cube 		strcpy(dkw->dkw_parent, device_xname(wd->sc_dev));
   1448          1.294   thorpej 		return (dkwedge_del(dkw));
   1449          1.294   thorpej 	    }
   1450          1.294   thorpej 
   1451          1.294   thorpej 	case DIOCLWEDGES:
   1452          1.294   thorpej 	    {
   1453          1.294   thorpej 	    	struct dkwedge_list *dkwl = (void *) addr;
   1454          1.294   thorpej 
   1455          1.314  christos 		return (dkwedge_list(&wd->sc_dk, dkwl, l));
   1456          1.294   thorpej 	    }
   1457          1.294   thorpej 
   1458          1.315      yamt 	case DIOCGSTRATEGY:
   1459          1.315      yamt 	    {
   1460          1.315      yamt 		struct disk_strategy *dks = (void *)addr;
   1461          1.315      yamt 
   1462          1.315      yamt 		s = splbio();
   1463          1.315      yamt 		strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q),
   1464          1.315      yamt 		    sizeof(dks->dks_name));
   1465          1.315      yamt 		splx(s);
   1466          1.315      yamt 		dks->dks_paramlen = 0;
   1467          1.315      yamt 
   1468          1.315      yamt 		return 0;
   1469          1.315      yamt 	    }
   1470          1.315      yamt 
   1471          1.315      yamt 	case DIOCSSTRATEGY:
   1472          1.315      yamt 	    {
   1473          1.315      yamt 		struct disk_strategy *dks = (void *)addr;
   1474          1.315      yamt 		struct bufq_state *new;
   1475          1.315      yamt 		struct bufq_state *old;
   1476          1.315      yamt 
   1477          1.315      yamt 		if ((flag & FWRITE) == 0) {
   1478          1.315      yamt 			return EBADF;
   1479          1.315      yamt 		}
   1480          1.315      yamt 		if (dks->dks_param != NULL) {
   1481          1.315      yamt 			return EINVAL;
   1482          1.315      yamt 		}
   1483          1.315      yamt 		dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */
   1484          1.315      yamt 		error = bufq_alloc(&new, dks->dks_name,
   1485          1.315      yamt 		    BUFQ_EXACT|BUFQ_SORT_RAWBLOCK);
   1486          1.315      yamt 		if (error) {
   1487          1.315      yamt 			return error;
   1488          1.315      yamt 		}
   1489          1.315      yamt 		s = splbio();
   1490          1.315      yamt 		old = wd->sc_q;
   1491          1.315      yamt 		bufq_move(new, old);
   1492          1.315      yamt 		wd->sc_q = new;
   1493          1.315      yamt 		splx(s);
   1494          1.315      yamt 		bufq_free(old);
   1495          1.315      yamt 
   1496          1.315      yamt 		return 0;
   1497          1.315      yamt 	    }
   1498          1.315      yamt 
   1499            1.1       cgd 	default:
   1500           1.54   mycroft 		return ENOTTY;
   1501            1.1       cgd 	}
   1502           1.54   mycroft 
   1503           1.54   mycroft #ifdef DIAGNOSTIC
   1504           1.54   mycroft 	panic("wdioctl: impossible");
   1505           1.54   mycroft #endif
   1506            1.1       cgd }
   1507            1.1       cgd 
   1508           1.44   mycroft #ifdef B_FORMAT
   1509            1.1       cgd int
   1510            1.1       cgd wdformat(struct buf *bp)
   1511            1.1       cgd {
   1512           1.44   mycroft 
   1513            1.1       cgd 	bp->b_flags |= B_FORMAT;
   1514           1.37   mycroft 	return wdstrategy(bp);
   1515            1.1       cgd }
   1516            1.1       cgd #endif
   1517            1.1       cgd 
   1518            1.1       cgd int
   1519          1.259       dsl wdsize(dev_t dev)
   1520            1.1       cgd {
   1521           1.64   mycroft 	struct wd_softc *wd;
   1522          1.208   thorpej 	int part, omask;
   1523          1.108   mycroft 	int size;
   1524          1.163    bouyer 
   1525          1.289   thorpej 	ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS);
   1526          1.163    bouyer 
   1527          1.363   tsutsui 	wd = device_lookup_private(&wd_cd, WDUNIT(dev));
   1528          1.158        pk 	if (wd == NULL)
   1529          1.158        pk 		return (-1);
   1530          1.158        pk 
   1531          1.158        pk 	part = WDPART(dev);
   1532          1.158        pk 	omask = wd->sc_dk.dk_openmask & (1 << part);
   1533          1.158        pk 
   1534          1.158        pk 	if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0)
   1535          1.158        pk 		return (-1);
   1536          1.144   thorpej 	if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP)
   1537          1.108   mycroft 		size = -1;
   1538          1.108   mycroft 	else
   1539          1.160   thorpej 		size = wd->sc_dk.dk_label->d_partitions[part].p_size *
   1540          1.181    bouyer 		    (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE);
   1541          1.158        pk 	if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0)
   1542          1.158        pk 		return (-1);
   1543          1.158        pk 	return (size);
   1544            1.1       cgd }
   1545            1.1       cgd 
   1546          1.140       cgd /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */
   1547          1.181    bouyer static int wddoingadump = 0;
   1548          1.181    bouyer static int wddumprecalibrated = 0;
   1549          1.140       cgd 
   1550           1.64   mycroft /*
   1551           1.64   mycroft  * Dump core after a system crash.
   1552           1.64   mycroft  */
   1553            1.1       cgd int
   1554          1.337  christos wddump(dev_t dev, daddr_t blkno, void *va, size_t size)
   1555          1.140       cgd {
   1556          1.140       cgd 	struct wd_softc *wd;	/* disk unit to do the I/O */
   1557          1.181    bouyer 	struct disklabel *lp;   /* disk's disklabel */
   1558          1.208   thorpej 	int part, err;
   1559          1.181    bouyer 	int nblks;	/* total number of sectors left to write */
   1560          1.140       cgd 
   1561          1.140       cgd 	/* Check if recursive dump; if so, punt. */
   1562          1.116   mycroft 	if (wddoingadump)
   1563          1.116   mycroft 		return EFAULT;
   1564          1.142   mycroft 	wddoingadump = 1;
   1565          1.140       cgd 
   1566          1.363   tsutsui 	wd = device_lookup_private(&wd_cd, WDUNIT(dev));
   1567          1.208   thorpej 	if (wd == NULL)
   1568          1.208   thorpej 		return (ENXIO);
   1569           1.60   mycroft 
   1570          1.140       cgd 	part = WDPART(dev);
   1571          1.140       cgd 
   1572          1.181    bouyer 	/* Convert to disk sectors.  Request must be a multiple of size. */
   1573          1.144   thorpej 	lp = wd->sc_dk.dk_label;
   1574          1.142   mycroft 	if ((size % lp->d_secsize) != 0)
   1575          1.140       cgd 		return EFAULT;
   1576          1.142   mycroft 	nblks = size / lp->d_secsize;
   1577          1.142   mycroft 	blkno = blkno / (lp->d_secsize / DEV_BSIZE);
   1578          1.116   mycroft 
   1579           1.64   mycroft 	/* Check transfer bounds against partition size. */
   1580          1.142   mycroft 	if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size))
   1581          1.259       dsl 		return EINVAL;
   1582          1.140       cgd 
   1583          1.140       cgd 	/* Offset block number to start of partition. */
   1584          1.142   mycroft 	blkno += lp->d_partitions[part].p_offset;
   1585           1.60   mycroft 
   1586          1.140       cgd 	/* Recalibrate, if first dump transfer. */
   1587          1.140       cgd 	if (wddumprecalibrated == 0) {
   1588          1.140       cgd 		wddumprecalibrated = 1;
   1589          1.290   thorpej 		(*wd->atabus->ata_reset_drive)(wd->drvp,
   1590          1.290   thorpej 					       AT_POLL | AT_RST_EMERG);
   1591          1.205    bouyer 		wd->drvp->state = RESET;
   1592           1.63   mycroft 	}
   1593          1.259       dsl 
   1594          1.308    bouyer 	wd->sc_bp = NULL;
   1595          1.308    bouyer 	wd->sc_wdc_bio.blkno = blkno;
   1596          1.308    bouyer 	wd->sc_wdc_bio.flags = ATA_POLL;
   1597          1.308    bouyer 	if (wd->sc_flags & WDF_LBA48 &&
   1598  1.363.8.1.4.1      matt 	    (wd->sc_wdc_bio.blkno + nblks) > wd->sc_capacity28)
   1599          1.308    bouyer 		wd->sc_wdc_bio.flags |= ATA_LBA48;
   1600          1.308    bouyer 	if (wd->sc_flags & WDF_LBA)
   1601          1.308    bouyer 		wd->sc_wdc_bio.flags |= ATA_LBA;
   1602          1.308    bouyer 	wd->sc_wdc_bio.bcount = nblks * lp->d_secsize;
   1603          1.308    bouyer 	wd->sc_wdc_bio.databuf = va;
   1604          1.181    bouyer #ifndef WD_DUMP_NOT_TRUSTED
   1605          1.308    bouyer 	switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) {
   1606          1.308    bouyer 	case ATACMD_TRY_AGAIN:
   1607          1.308    bouyer 		panic("wddump: try again");
   1608          1.308    bouyer 		break;
   1609          1.308    bouyer 	case ATACMD_QUEUED:
   1610          1.308    bouyer 		panic("wddump: polled command has been queued");
   1611          1.308    bouyer 		break;
   1612          1.308    bouyer 	case ATACMD_COMPLETE:
   1613          1.308    bouyer 		break;
   1614          1.308    bouyer 	}
   1615          1.308    bouyer 	switch(wd->sc_wdc_bio.error) {
   1616          1.308    bouyer 	case TIMEOUT:
   1617          1.308    bouyer 		printf("wddump: device timed out");
   1618          1.308    bouyer 		err = EIO;
   1619          1.308    bouyer 		break;
   1620          1.308    bouyer 	case ERR_DF:
   1621          1.308    bouyer 		printf("wddump: drive fault");
   1622          1.308    bouyer 		err = EIO;
   1623          1.308    bouyer 		break;
   1624          1.308    bouyer 	case ERR_DMA:
   1625          1.308    bouyer 		printf("wddump: DMA error");
   1626          1.308    bouyer 		err = EIO;
   1627          1.308    bouyer 		break;
   1628          1.308    bouyer 	case ERROR:
   1629          1.308    bouyer 		printf("wddump: ");
   1630          1.308    bouyer 		wdperror(wd);
   1631          1.308    bouyer 		err = EIO;
   1632          1.308    bouyer 		break;
   1633          1.308    bouyer 	case NOERROR:
   1634          1.308    bouyer 		err = 0;
   1635          1.308    bouyer 		break;
   1636          1.308    bouyer 	default:
   1637          1.308    bouyer 		panic("wddump: unknown error type");
   1638          1.308    bouyer 	}
   1639          1.308    bouyer 	if (err != 0) {
   1640          1.308    bouyer 		printf("\n");
   1641          1.308    bouyer 		return err;
   1642          1.308    bouyer 	}
   1643          1.140       cgd #else	/* WD_DUMP_NOT_TRUSTED */
   1644          1.308    bouyer 	/* Let's just talk about this first... */
   1645          1.308    bouyer 	printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n",
   1646          1.308    bouyer 	    unit, va, cylin, head, sector);
   1647          1.308    bouyer 	delay(500 * 1000);	/* half a second */
   1648          1.140       cgd #endif
   1649            1.1       cgd 
   1650          1.140       cgd 	wddoingadump = 0;
   1651          1.140       cgd 	return 0;
   1652          1.140       cgd }
   1653            1.3   deraadt 
   1654          1.170       leo #ifdef HAS_BAD144_HANDLING
   1655            1.3   deraadt /*
   1656            1.3   deraadt  * Internalize the bad sector table.
   1657            1.3   deraadt  */
   1658            1.3   deraadt void
   1659          1.259       dsl bad144intern(struct wd_softc *wd)
   1660            1.3   deraadt {
   1661          1.144   thorpej 	struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad;
   1662          1.144   thorpej 	struct disklabel *lp = wd->sc_dk.dk_label;
   1663           1.98   mycroft 	int i = 0;
   1664           1.55   mycroft 
   1665          1.289   thorpej 	ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS);
   1666          1.163    bouyer 
   1667          1.170       leo 	for (; i < NBT_BAD; i++) {
   1668           1.98   mycroft 		if (bt->bt_bad[i].bt_cyl == 0xffff)
   1669           1.55   mycroft 			break;
   1670          1.181    bouyer 		wd->sc_badsect[i] =
   1671           1.98   mycroft 		    bt->bt_bad[i].bt_cyl * lp->d_secpercyl +
   1672           1.98   mycroft 		    (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors +
   1673           1.98   mycroft 		    (bt->bt_bad[i].bt_trksec & 0xff);
   1674            1.3   deraadt 	}
   1675          1.170       leo 	for (; i < NBT_BAD+1; i++)
   1676          1.181    bouyer 		wd->sc_badsect[i] = -1;
   1677           1.64   mycroft }
   1678          1.170       leo #endif
   1679           1.64   mycroft 
   1680          1.330   thorpej static void
   1681          1.335  christos wd_params_to_properties(struct wd_softc *wd, struct ataparams *params)
   1682          1.330   thorpej {
   1683          1.332   thorpej 	prop_dictionary_t disk_info, odisk_info, geom;
   1684          1.333   thorpej 	const char *cp;
   1685          1.330   thorpej 
   1686          1.330   thorpej 	disk_info = prop_dictionary_create();
   1687          1.330   thorpej 
   1688          1.330   thorpej 	if (strcmp(wd->sc_params.atap_model, "ST506") == 0)
   1689          1.333   thorpej 		cp = "ST506";
   1690          1.330   thorpej 	else {
   1691          1.330   thorpej 		/* XXX Should have a case for ATA here, too. */
   1692          1.333   thorpej 		cp = "ESDI";
   1693          1.330   thorpej 	}
   1694          1.333   thorpej 	prop_dictionary_set_cstring_nocopy(disk_info, "type", cp);
   1695          1.330   thorpej 
   1696          1.330   thorpej 	geom = prop_dictionary_create();
   1697          1.330   thorpej 
   1698          1.333   thorpej 	prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity);
   1699          1.333   thorpej 
   1700          1.333   thorpej 	prop_dictionary_set_uint32(geom, "sector-size",
   1701          1.333   thorpej 				   DEV_BSIZE /* XXX 512? */);
   1702          1.333   thorpej 
   1703          1.333   thorpej 	prop_dictionary_set_uint16(geom, "sectors-per-track",
   1704          1.333   thorpej 				   wd->sc_params.atap_sectors);
   1705          1.333   thorpej 
   1706          1.333   thorpej 	prop_dictionary_set_uint16(geom, "tracks-per-cylinder",
   1707          1.333   thorpej 				   wd->sc_params.atap_heads);
   1708          1.333   thorpej 
   1709          1.333   thorpej 	if (wd->sc_flags & WDF_LBA)
   1710          1.333   thorpej 		prop_dictionary_set_uint64(geom, "cylinders-per-unit",
   1711          1.333   thorpej 					   wd->sc_capacity /
   1712          1.333   thorpej 					       (wd->sc_params.atap_heads *
   1713          1.333   thorpej 					        wd->sc_params.atap_sectors));
   1714          1.333   thorpej 	else
   1715          1.333   thorpej 		prop_dictionary_set_uint16(geom, "cylinders-per-unit",
   1716          1.333   thorpej 					   wd->sc_params.atap_cylinders);
   1717          1.330   thorpej 
   1718          1.330   thorpej 	prop_dictionary_set(disk_info, "geometry", geom);
   1719          1.330   thorpej 	prop_object_release(geom);
   1720          1.330   thorpej 
   1721          1.360      cube 	prop_dictionary_set(device_properties(wd->sc_dev),
   1722          1.330   thorpej 			    "disk-info", disk_info);
   1723          1.332   thorpej 
   1724          1.332   thorpej 	/*
   1725          1.332   thorpej 	 * Don't release disk_info here; we keep a reference to it.
   1726          1.332   thorpej 	 * disk_detach() will release it when we go away.
   1727          1.332   thorpej 	 */
   1728          1.332   thorpej 
   1729          1.332   thorpej 	odisk_info = wd->sc_dk.dk_info;
   1730          1.332   thorpej 	wd->sc_dk.dk_info = disk_info;
   1731          1.332   thorpej 	if (odisk_info)
   1732          1.332   thorpej 		prop_object_release(odisk_info);
   1733          1.330   thorpej }
   1734          1.330   thorpej 
   1735          1.181    bouyer int
   1736          1.259       dsl wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params)
   1737           1.63   mycroft {
   1738          1.350     itohy 
   1739          1.217    bouyer 	switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) {
   1740          1.181    bouyer 	case CMD_AGAIN:
   1741          1.181    bouyer 		return 1;
   1742          1.181    bouyer 	case CMD_ERR:
   1743          1.181    bouyer 		/*
   1744          1.181    bouyer 		 * We `know' there's a drive here; just assume it's old.
   1745          1.181    bouyer 		 * This geometry is only used to read the MBR and print a
   1746          1.181    bouyer 		 * (false) attach message.
   1747          1.181    bouyer 		 */
   1748          1.181    bouyer 		strncpy(params->atap_model, "ST506",
   1749          1.181    bouyer 		    sizeof params->atap_model);
   1750          1.181    bouyer 		params->atap_config = ATA_CFG_FIXED;
   1751          1.181    bouyer 		params->atap_cylinders = 1024;
   1752          1.181    bouyer 		params->atap_heads = 8;
   1753          1.181    bouyer 		params->atap_sectors = 17;
   1754          1.181    bouyer 		params->atap_multi = 1;
   1755          1.181    bouyer 		params->atap_capabilities1 = params->atap_capabilities2 = 0;
   1756          1.190    bouyer 		wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */
   1757          1.330   thorpej 		/* FALLTHROUGH */
   1758          1.181    bouyer 	case CMD_OK:
   1759          1.330   thorpej 		wd_params_to_properties(wd, params);
   1760          1.181    bouyer 		return 0;
   1761          1.181    bouyer 	default:
   1762          1.181    bouyer 		panic("wd_get_params: bad return code from ata_get_params");
   1763          1.181    bouyer 		/* NOTREACHED */
   1764          1.181    bouyer 	}
   1765          1.248    bouyer }
   1766          1.248    bouyer 
   1767          1.248    bouyer int
   1768          1.259       dsl wd_getcache(struct wd_softc *wd, int *bitsp)
   1769          1.248    bouyer {
   1770          1.248    bouyer 	struct ataparams params;
   1771          1.248    bouyer 
   1772          1.248    bouyer 	if (wd_get_params(wd, AT_WAIT, &params) != 0)
   1773          1.248    bouyer 		return EIO;
   1774          1.248    bouyer 	if (params.atap_cmd_set1 == 0x0000 ||
   1775          1.248    bouyer 	    params.atap_cmd_set1 == 0xffff ||
   1776          1.248    bouyer 	    (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) {
   1777          1.248    bouyer 		*bitsp = 0;
   1778          1.248    bouyer 		return 0;
   1779          1.248    bouyer 	}
   1780          1.248    bouyer 	*bitsp = DKCACHE_WCHANGE | DKCACHE_READ;
   1781          1.248    bouyer 	if (params.atap_cmd1_en & WDC_CMD1_CACHE)
   1782          1.248    bouyer 		*bitsp |= DKCACHE_WRITE;
   1783          1.248    bouyer 
   1784          1.248    bouyer 	return 0;
   1785          1.248    bouyer }
   1786          1.248    bouyer 
   1787          1.286   mycroft const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF";
   1788          1.286   mycroft 
   1789          1.248    bouyer int
   1790          1.259       dsl wd_setcache(struct wd_softc *wd, int bits)
   1791          1.248    bouyer {
   1792          1.248    bouyer 	struct ataparams params;
   1793          1.287   thorpej 	struct ata_command ata_c;
   1794          1.248    bouyer 
   1795          1.248    bouyer 	if (wd_get_params(wd, AT_WAIT, &params) != 0)
   1796          1.248    bouyer 		return EIO;
   1797          1.248    bouyer 
   1798          1.248    bouyer 	if (params.atap_cmd_set1 == 0x0000 ||
   1799          1.250    bouyer 	    params.atap_cmd_set1 == 0xffff ||
   1800          1.248    bouyer 	    (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0)
   1801          1.248    bouyer 		return EOPNOTSUPP;
   1802          1.248    bouyer 
   1803          1.249    bouyer 	if ((bits & DKCACHE_READ) == 0 ||
   1804          1.249    bouyer 	    (bits & DKCACHE_SAVE) != 0)
   1805          1.248    bouyer 		return EOPNOTSUPP;
   1806          1.248    bouyer 
   1807          1.287   thorpej 	memset(&ata_c, 0, sizeof(struct ata_command));
   1808          1.287   thorpej 	ata_c.r_command = SET_FEATURES;
   1809          1.287   thorpej 	ata_c.r_st_bmask = 0;
   1810          1.287   thorpej 	ata_c.r_st_pmask = 0;
   1811          1.287   thorpej 	ata_c.timeout = 30000; /* 30s timeout */
   1812          1.287   thorpej 	ata_c.flags = AT_WAIT;
   1813          1.248    bouyer 	if (bits & DKCACHE_WRITE)
   1814          1.287   thorpej 		ata_c.r_features = WDSF_WRITE_CACHE_EN;
   1815          1.248    bouyer 	else
   1816          1.287   thorpej 		ata_c.r_features = WDSF_WRITE_CACHE_DS;
   1817          1.288   thorpej 	if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) {
   1818          1.360      cube 		aprint_error_dev(wd->sc_dev,
   1819          1.360      cube 		    "wd_setcache command not complete\n");
   1820          1.248    bouyer 		return EIO;
   1821          1.248    bouyer 	}
   1822          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   1823          1.286   mycroft 		char sbuf[sizeof(at_errbits) + 64];
   1824          1.287   thorpej 		bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf));
   1825          1.360      cube 		aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf);
   1826          1.286   mycroft 		return EIO;
   1827          1.286   mycroft 	}
   1828          1.286   mycroft 	return 0;
   1829          1.286   mycroft }
   1830          1.286   mycroft 
   1831          1.351  jmcneill static int
   1832          1.286   mycroft wd_standby(struct wd_softc *wd, int flags)
   1833          1.286   mycroft {
   1834          1.287   thorpej 	struct ata_command ata_c;
   1835          1.286   mycroft 
   1836          1.287   thorpej 	memset(&ata_c, 0, sizeof(struct ata_command));
   1837          1.287   thorpej 	ata_c.r_command = WDCC_STANDBY_IMMED;
   1838          1.287   thorpej 	ata_c.r_st_bmask = WDCS_DRDY;
   1839          1.287   thorpej 	ata_c.r_st_pmask = WDCS_DRDY;
   1840          1.287   thorpej 	ata_c.flags = flags;
   1841          1.287   thorpej 	ata_c.timeout = 30000; /* 30s timeout */
   1842          1.288   thorpej 	if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) {
   1843          1.360      cube 		aprint_error_dev(wd->sc_dev,
   1844          1.351  jmcneill 		    "standby immediate command didn't complete\n");
   1845          1.286   mycroft 		return EIO;
   1846          1.286   mycroft 	}
   1847          1.287   thorpej 	if (ata_c.flags & AT_ERROR) {
   1848          1.287   thorpej 		if (ata_c.r_error == WDCE_ABRT) /* command not supported */
   1849          1.286   mycroft 			return ENODEV;
   1850          1.286   mycroft 	}
   1851          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   1852          1.286   mycroft 		char sbuf[sizeof(at_errbits) + 64];
   1853          1.287   thorpej 		bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf));
   1854          1.360      cube 		aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf);
   1855          1.248    bouyer 		return EIO;
   1856          1.248    bouyer 	}
   1857          1.248    bouyer 	return 0;
   1858          1.190    bouyer }
   1859          1.190    bouyer 
   1860          1.276    bouyer int
   1861          1.259       dsl wd_flushcache(struct wd_softc *wd, int flags)
   1862          1.190    bouyer {
   1863          1.287   thorpej 	struct ata_command ata_c;
   1864          1.190    bouyer 
   1865          1.297    bouyer 	/*
   1866          1.297    bouyer 	 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report
   1867          1.297    bouyer 	 * only ATA-2 and still support it.
   1868          1.297    bouyer 	 */
   1869          1.297    bouyer 	if (wd->drvp->ata_vers < 4 &&
   1870          1.297    bouyer 	    ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 ||
   1871          1.297    bouyer 	    wd->sc_params.atap_cmd_set2 == 0xffff))
   1872          1.276    bouyer 		return ENODEV;
   1873          1.287   thorpej 	memset(&ata_c, 0, sizeof(struct ata_command));
   1874          1.275    bouyer 	if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 &&
   1875          1.275    bouyer 	    (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0)
   1876          1.287   thorpej 		ata_c.r_command = WDCC_FLUSHCACHE_EXT;
   1877          1.275    bouyer 	else
   1878          1.287   thorpej 		ata_c.r_command = WDCC_FLUSHCACHE;
   1879          1.287   thorpej 	ata_c.r_st_bmask = WDCS_DRDY;
   1880          1.287   thorpej 	ata_c.r_st_pmask = WDCS_DRDY;
   1881          1.287   thorpej 	ata_c.flags = flags;
   1882          1.287   thorpej 	ata_c.timeout = 30000; /* 30s timeout */
   1883          1.288   thorpej 	if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) {
   1884          1.360      cube 		aprint_error_dev(wd->sc_dev,
   1885          1.360      cube 		    "flush cache command didn't complete\n");
   1886          1.276    bouyer 		return EIO;
   1887          1.190    bouyer 	}
   1888          1.287   thorpej 	if (ata_c.flags & AT_ERROR) {
   1889          1.287   thorpej 		if (ata_c.r_error == WDCE_ABRT) /* command not supported */
   1890          1.276    bouyer 			return ENODEV;
   1891          1.190    bouyer 	}
   1892          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   1893          1.286   mycroft 		char sbuf[sizeof(at_errbits) + 64];
   1894          1.287   thorpej 		bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf));
   1895          1.360      cube 		aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n",
   1896          1.286   mycroft 		    sbuf);
   1897          1.276    bouyer 		return EIO;
   1898          1.190    bouyer 	}
   1899          1.276    bouyer 	return 0;
   1900          1.190    bouyer }
   1901          1.190    bouyer 
   1902          1.357  drochner bool
   1903          1.357  drochner wd_shutdown(device_t dev, int how)
   1904          1.356  drochner {
   1905          1.357  drochner 	struct wd_softc *wd = device_private(dev);
   1906      1.363.8.1       snj 
   1907      1.363.8.1       snj 	/* the adapter needs to be enabled */
   1908      1.363.8.1       snj 	if (wd->atabus->ata_addref(wd->drvp))
   1909      1.363.8.1       snj 		return true; /* no need to complain */
   1910      1.363.8.1       snj 
   1911          1.356  drochner 	wd_flushcache(wd, AT_POLL);
   1912          1.357  drochner 	if ((how & RB_POWERDOWN) == RB_POWERDOWN)
   1913          1.356  drochner 		wd_standby(wd, AT_POLL);
   1914          1.357  drochner 	return true;
   1915          1.356  drochner }
   1916          1.356  drochner 
   1917          1.185      kenh /*
   1918          1.185      kenh  * Allocate space for a ioctl queue structure.  Mostly taken from
   1919          1.185      kenh  * scsipi_ioctl.c
   1920          1.185      kenh  */
   1921          1.185      kenh struct wd_ioctl *
   1922          1.259       dsl wi_get(void)
   1923          1.185      kenh {
   1924          1.185      kenh 	struct wd_ioctl *wi;
   1925          1.185      kenh 	int s;
   1926          1.185      kenh 
   1927          1.219   tsutsui 	wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO);
   1928          1.355        ad 	buf_init(&wi->wi_bp);
   1929          1.185      kenh 	s = splbio();
   1930          1.185      kenh 	LIST_INSERT_HEAD(&wi_head, wi, wi_list);
   1931          1.185      kenh 	splx(s);
   1932          1.185      kenh 	return (wi);
   1933          1.185      kenh }
   1934          1.185      kenh 
   1935          1.185      kenh /*
   1936          1.185      kenh  * Free an ioctl structure and remove it from our list
   1937          1.185      kenh  */
   1938          1.185      kenh 
   1939          1.185      kenh void
   1940          1.259       dsl wi_free(struct wd_ioctl *wi)
   1941          1.185      kenh {
   1942          1.185      kenh 	int s;
   1943          1.185      kenh 
   1944          1.185      kenh 	s = splbio();
   1945          1.185      kenh 	LIST_REMOVE(wi, wi_list);
   1946          1.185      kenh 	splx(s);
   1947          1.355        ad 	buf_destroy(&wi->wi_bp);
   1948          1.185      kenh 	free(wi, M_TEMP);
   1949          1.185      kenh }
   1950          1.185      kenh 
   1951          1.185      kenh /*
   1952          1.185      kenh  * Find a wd_ioctl structure based on the struct buf.
   1953          1.185      kenh  */
   1954          1.185      kenh 
   1955          1.185      kenh struct wd_ioctl *
   1956          1.259       dsl wi_find(struct buf *bp)
   1957          1.185      kenh {
   1958          1.185      kenh 	struct wd_ioctl *wi;
   1959          1.185      kenh 	int s;
   1960          1.185      kenh 
   1961          1.185      kenh 	s = splbio();
   1962          1.185      kenh 	for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next)
   1963          1.185      kenh 		if (bp == &wi->wi_bp)
   1964          1.185      kenh 			break;
   1965          1.185      kenh 	splx(s);
   1966          1.185      kenh 	return (wi);
   1967          1.185      kenh }
   1968          1.185      kenh 
   1969          1.185      kenh /*
   1970          1.185      kenh  * Ioctl pseudo strategy routine
   1971          1.185      kenh  *
   1972          1.185      kenh  * This is mostly stolen from scsipi_ioctl.c:scsistrategy().  What
   1973          1.185      kenh  * happens here is:
   1974          1.185      kenh  *
   1975          1.185      kenh  * - wdioctl() queues a wd_ioctl structure.
   1976          1.185      kenh  *
   1977          1.185      kenh  * - wdioctl() calls physio/wdioctlstrategy based on whether or not
   1978          1.185      kenh  *   user space I/O is required.  If physio() is called, physio() eventually
   1979          1.185      kenh  *   calls wdioctlstrategy().
   1980          1.185      kenh  *
   1981          1.217    bouyer  * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command()
   1982          1.185      kenh  *   to perform the actual command
   1983          1.185      kenh  *
   1984          1.185      kenh  * The reason for the use of the pseudo strategy routine is because
   1985          1.185      kenh  * when doing I/O to/from user space, physio _really_ wants to be in
   1986          1.185      kenh  * the loop.  We could put the entire buffer into the ioctl request
   1987          1.185      kenh  * structure, but that won't scale if we want to do things like download
   1988          1.185      kenh  * microcode.
   1989          1.185      kenh  */
   1990          1.185      kenh 
   1991          1.185      kenh void
   1992          1.259       dsl wdioctlstrategy(struct buf *bp)
   1993          1.185      kenh {
   1994          1.185      kenh 	struct wd_ioctl *wi;
   1995          1.287   thorpej 	struct ata_command ata_c;
   1996          1.185      kenh 	int error = 0;
   1997          1.185      kenh 
   1998          1.185      kenh 	wi = wi_find(bp);
   1999          1.185      kenh 	if (wi == NULL) {
   2000          1.313    martin 		printf("wdioctlstrategy: "
   2001          1.313    martin 		    "No matching ioctl request found in queue\n");
   2002          1.185      kenh 		error = EINVAL;
   2003          1.355        ad 		goto bad;
   2004          1.185      kenh 	}
   2005          1.185      kenh 
   2006          1.287   thorpej 	memset(&ata_c, 0, sizeof(ata_c));
   2007          1.185      kenh 
   2008          1.185      kenh 	/*
   2009          1.185      kenh 	 * Abort if physio broke up the transfer
   2010          1.185      kenh 	 */
   2011          1.185      kenh 
   2012          1.186      kenh 	if (bp->b_bcount != wi->wi_atareq.datalen) {
   2013          1.185      kenh 		printf("physio split wd ioctl request... cannot proceed\n");
   2014          1.185      kenh 		error = EIO;
   2015          1.355        ad 		goto bad;
   2016          1.185      kenh 	}
   2017          1.185      kenh 
   2018          1.185      kenh 	/*
   2019          1.185      kenh 	 * Abort if we didn't get a buffer size that was a multiple of
   2020          1.185      kenh 	 * our sector size (or was larger than NBBY)
   2021          1.185      kenh 	 */
   2022          1.185      kenh 
   2023          1.185      kenh 	if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 ||
   2024          1.185      kenh 	    (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >=
   2025          1.185      kenh 	     (1 << NBBY)) {
   2026          1.185      kenh 		error = EINVAL;
   2027          1.355        ad 		goto bad;
   2028          1.185      kenh 	}
   2029          1.185      kenh 
   2030          1.185      kenh 	/*
   2031          1.185      kenh 	 * Make sure a timeout was supplied in the ioctl request
   2032          1.185      kenh 	 */
   2033          1.185      kenh 
   2034          1.186      kenh 	if (wi->wi_atareq.timeout == 0) {
   2035          1.185      kenh 		error = EINVAL;
   2036          1.355        ad 		goto bad;
   2037          1.185      kenh 	}
   2038          1.185      kenh 
   2039          1.186      kenh 	if (wi->wi_atareq.flags & ATACMD_READ)
   2040          1.287   thorpej 		ata_c.flags |= AT_READ;
   2041          1.186      kenh 	else if (wi->wi_atareq.flags & ATACMD_WRITE)
   2042          1.287   thorpej 		ata_c.flags |= AT_WRITE;
   2043          1.185      kenh 
   2044          1.188      kenh 	if (wi->wi_atareq.flags & ATACMD_READREG)
   2045          1.287   thorpej 		ata_c.flags |= AT_READREG;
   2046          1.188      kenh 
   2047          1.287   thorpej 	ata_c.flags |= AT_WAIT;
   2048          1.185      kenh 
   2049          1.287   thorpej 	ata_c.timeout = wi->wi_atareq.timeout;
   2050          1.287   thorpej 	ata_c.r_command = wi->wi_atareq.command;
   2051          1.287   thorpej 	ata_c.r_head = wi->wi_atareq.head & 0x0f;
   2052          1.287   thorpej 	ata_c.r_cyl = wi->wi_atareq.cylinder;
   2053          1.287   thorpej 	ata_c.r_sector = wi->wi_atareq.sec_num;
   2054          1.287   thorpej 	ata_c.r_count = wi->wi_atareq.sec_count;
   2055          1.287   thorpej 	ata_c.r_features = wi->wi_atareq.features;
   2056          1.287   thorpej 	ata_c.r_st_bmask = WDCS_DRDY;
   2057          1.287   thorpej 	ata_c.r_st_pmask = WDCS_DRDY;
   2058          1.287   thorpej 	ata_c.data = wi->wi_bp.b_data;
   2059          1.287   thorpej 	ata_c.bcount = wi->wi_bp.b_bcount;
   2060          1.185      kenh 
   2061          1.287   thorpej 	if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c)
   2062          1.288   thorpej 	    != ATACMD_COMPLETE) {
   2063          1.186      kenh 		wi->wi_atareq.retsts = ATACMD_ERROR;
   2064          1.355        ad 		goto bad;
   2065          1.185      kenh 	}
   2066          1.185      kenh 
   2067          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   2068          1.287   thorpej 		if (ata_c.flags & AT_ERROR) {
   2069          1.186      kenh 			wi->wi_atareq.retsts = ATACMD_ERROR;
   2070          1.287   thorpej 			wi->wi_atareq.error = ata_c.r_error;
   2071          1.287   thorpej 		} else if (ata_c.flags & AT_DF)
   2072          1.186      kenh 			wi->wi_atareq.retsts = ATACMD_DF;
   2073          1.185      kenh 		else
   2074          1.186      kenh 			wi->wi_atareq.retsts = ATACMD_TIMEOUT;
   2075          1.188      kenh 	} else {
   2076          1.186      kenh 		wi->wi_atareq.retsts = ATACMD_OK;
   2077          1.188      kenh 		if (wi->wi_atareq.flags & ATACMD_READREG) {
   2078          1.287   thorpej 			wi->wi_atareq.head = ata_c.r_head ;
   2079          1.287   thorpej 			wi->wi_atareq.cylinder = ata_c.r_cyl;
   2080          1.287   thorpej 			wi->wi_atareq.sec_num = ata_c.r_sector;
   2081          1.287   thorpej 			wi->wi_atareq.sec_count = ata_c.r_count;
   2082          1.287   thorpej 			wi->wi_atareq.features = ata_c.r_features;
   2083          1.287   thorpej 			wi->wi_atareq.error = ata_c.r_error;
   2084          1.188      kenh 		}
   2085          1.188      kenh 	}
   2086          1.185      kenh 
   2087          1.355        ad 	bp->b_error = 0;
   2088          1.355        ad 	biodone(bp);
   2089          1.355        ad 	return;
   2090          1.355        ad bad:
   2091          1.185      kenh 	bp->b_error = error;
   2092          1.185      kenh 	biodone(bp);
   2093           1.21   deraadt }
   2094