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wd.c revision 1.298.2.7.2.7
      1  1.298.2.7.2.7       riz /*	$NetBSD: wd.c,v 1.298.2.7.2.7 2007/10/15 21:54:31 riz 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  * 3. All advertising materials mentioning features or use of this software
     48          1.113   mycroft  *    must display the following acknowledgement:
     49          1.178   mycroft  *        This product includes software developed by the NetBSD
     50          1.178   mycroft  *        Foundation, Inc. and its contributors.
     51          1.178   mycroft  * 4. Neither the name of The NetBSD Foundation nor the names of its
     52          1.178   mycroft  *    contributors may be used to endorse or promote products derived
     53          1.178   mycroft  *    from this software without specific prior written permission.
     54          1.113   mycroft  *
     55          1.178   mycroft  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     56          1.178   mycroft  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     57          1.178   mycroft  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     58          1.178   mycroft  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     59          1.178   mycroft  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     60          1.178   mycroft  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     61          1.178   mycroft  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     62          1.178   mycroft  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     63          1.178   mycroft  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     64          1.178   mycroft  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     65          1.178   mycroft  * POSSIBILITY OF SUCH DAMAGE.
     66            1.1       cgd  */
     67          1.215     lukem 
     68          1.215     lukem #include <sys/cdefs.h>
     69  1.298.2.7.2.7       riz __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.298.2.7.2.7 2007/10/15 21:54:31 riz Exp $");
     70            1.1       cgd 
     71          1.289   thorpej #ifndef ATADEBUG
     72          1.289   thorpej #define ATADEBUG
     73          1.289   thorpej #endif /* ATADEBUG */
     74          1.181    bouyer 
     75          1.166  explorer #include "rnd.h"
     76          1.166  explorer 
     77           1.29   mycroft #include <sys/param.h>
     78           1.29   mycroft #include <sys/systm.h>
     79           1.43   mycroft #include <sys/kernel.h>
     80           1.29   mycroft #include <sys/conf.h>
     81           1.29   mycroft #include <sys/file.h>
     82           1.29   mycroft #include <sys/stat.h>
     83           1.29   mycroft #include <sys/ioctl.h>
     84           1.29   mycroft #include <sys/buf.h>
     85          1.296      yamt #include <sys/bufq.h>
     86           1.29   mycroft #include <sys/uio.h>
     87           1.29   mycroft #include <sys/malloc.h>
     88           1.64   mycroft #include <sys/device.h>
     89           1.94   mycroft #include <sys/disklabel.h>
     90           1.94   mycroft #include <sys/disk.h>
     91           1.29   mycroft #include <sys/syslog.h>
     92          1.149  christos #include <sys/proc.h>
     93          1.196     enami #include <sys/vnode.h>
     94          1.166  explorer #if NRND > 0
     95          1.165  explorer #include <sys/rnd.h>
     96          1.166  explorer #endif
     97           1.29   mycroft 
     98          1.150   mycroft #include <machine/intr.h>
     99          1.168       cgd #include <machine/bus.h>
    100          1.237   thorpej 
    101          1.181    bouyer #include <dev/ata/atareg.h>
    102          1.181    bouyer #include <dev/ata/atavar.h>
    103          1.181    bouyer #include <dev/ata/wdvar.h>
    104          1.181    bouyer #include <dev/ic/wdcreg.h>
    105          1.186      kenh #include <sys/ataio.h>
    106          1.163    bouyer #include "locators.h"
    107            1.1       cgd 
    108          1.258      matt #define	LBA48_THRESHOLD		(0xfffffff)	/* 128GB / DEV_BSIZE */
    109          1.258      matt 
    110          1.189    bouyer #define	WDIORETRIES_SINGLE 4	/* number of retries before single-sector */
    111          1.181    bouyer #define	WDIORETRIES	5	/* number of retries before giving up */
    112          1.181    bouyer #define	RECOVERYTIME hz/2	/* time to wait before retrying a cmd */
    113           1.23   deraadt 
    114          1.181    bouyer #define	WDUNIT(dev)		DISKUNIT(dev)
    115          1.181    bouyer #define	WDPART(dev)		DISKPART(dev)
    116          1.196     enami #define	WDMINOR(unit, part)	DISKMINOR(unit, part)
    117           1.92       cgd #define	MAKEWDDEV(maj, unit, part)	MAKEDISKDEV(maj, unit, part)
    118           1.92       cgd 
    119           1.92       cgd #define	WDLABELDEV(dev)	(MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART))
    120            1.1       cgd 
    121          1.181    bouyer #define DEBUG_INTR   0x01
    122          1.181    bouyer #define DEBUG_XFERS  0x02
    123          1.181    bouyer #define DEBUG_STATUS 0x04
    124          1.181    bouyer #define DEBUG_FUNCS  0x08
    125          1.181    bouyer #define DEBUG_PROBE  0x10
    126          1.289   thorpej #ifdef ATADEBUG
    127          1.298     perry int wdcdebug_wd_mask = 0x0;
    128          1.289   thorpej #define ATADEBUG_PRINT(args, level) \
    129          1.181    bouyer 	if (wdcdebug_wd_mask & (level)) \
    130          1.181    bouyer 		printf args
    131          1.163    bouyer #else
    132          1.289   thorpej #define ATADEBUG_PRINT(args, level)
    133          1.163    bouyer #endif
    134          1.181    bouyer 
    135          1.259       dsl int	wdprobe(struct device *, struct cfdata *, void *);
    136          1.259       dsl void	wdattach(struct device *, struct device *, void *);
    137          1.259       dsl int	wddetach(struct device *, int);
    138          1.259       dsl int	wdactivate(struct device *, enum devact);
    139          1.259       dsl int	wdprint(void *, char *);
    140          1.259       dsl void	wdperror(const struct wd_softc *);
    141          1.102   mycroft 
    142          1.228   thorpej CFATTACH_DECL(wd, sizeof(struct wd_softc),
    143          1.229   thorpej     wdprobe, wdattach, wddetach, wdactivate);
    144          1.147   thorpej 
    145          1.167   thorpej extern struct cfdriver wd_cd;
    146          1.108   mycroft 
    147          1.225   gehenna dev_type_open(wdopen);
    148          1.225   gehenna dev_type_close(wdclose);
    149          1.225   gehenna dev_type_read(wdread);
    150          1.225   gehenna dev_type_write(wdwrite);
    151          1.225   gehenna dev_type_ioctl(wdioctl);
    152          1.225   gehenna dev_type_strategy(wdstrategy);
    153          1.225   gehenna dev_type_dump(wddump);
    154          1.225   gehenna dev_type_size(wdsize);
    155          1.225   gehenna 
    156          1.225   gehenna const struct bdevsw wd_bdevsw = {
    157          1.225   gehenna 	wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK
    158          1.225   gehenna };
    159          1.225   gehenna 
    160          1.225   gehenna const struct cdevsw wd_cdevsw = {
    161          1.225   gehenna 	wdopen, wdclose, wdread, wdwrite, wdioctl,
    162          1.231  jdolecek 	nostop, notty, nopoll, nommap, nokqfilter, D_DISK
    163          1.225   gehenna };
    164          1.225   gehenna 
    165          1.185      kenh /*
    166          1.185      kenh  * Glue necessary to hook WDCIOCCOMMAND into physio
    167          1.185      kenh  */
    168          1.185      kenh 
    169          1.185      kenh struct wd_ioctl {
    170          1.185      kenh 	LIST_ENTRY(wd_ioctl) wi_list;
    171          1.185      kenh 	struct buf wi_bp;
    172          1.185      kenh 	struct uio wi_uio;
    173          1.185      kenh 	struct iovec wi_iov;
    174          1.186      kenh 	atareq_t wi_atareq;
    175          1.185      kenh 	struct wd_softc *wi_softc;
    176          1.185      kenh };
    177          1.185      kenh 
    178          1.185      kenh LIST_HEAD(, wd_ioctl) wi_head;
    179          1.185      kenh 
    180          1.259       dsl struct	wd_ioctl *wi_find(struct buf *);
    181          1.259       dsl void	wi_free(struct wd_ioctl *);
    182          1.259       dsl struct	wd_ioctl *wi_get(void);
    183          1.259       dsl void	wdioctlstrategy(struct buf *);
    184          1.259       dsl 
    185          1.259       dsl void  wdgetdefaultlabel(struct wd_softc *, struct disklabel *);
    186          1.259       dsl void  wdgetdisklabel(struct wd_softc *);
    187          1.259       dsl void  wdstart(void *);
    188          1.259       dsl void  __wdstart(struct wd_softc*, struct buf *);
    189          1.259       dsl void  wdrestart(void *);
    190          1.272   thorpej void  wddone(void *);
    191          1.259       dsl int   wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *);
    192          1.286   mycroft int   wd_standby(struct wd_softc *, int);
    193          1.276    bouyer int   wd_flushcache(struct wd_softc *, int);
    194          1.259       dsl void  wd_shutdown(void *);
    195          1.108   mycroft 
    196          1.259       dsl int   wd_getcache(struct wd_softc *, int *);
    197          1.259       dsl int   wd_setcache(struct wd_softc *, int);
    198          1.248    bouyer 
    199          1.294   thorpej struct dkdriver wddkdriver = { wdstrategy, minphys };
    200           1.65   mycroft 
    201          1.170       leo #ifdef HAS_BAD144_HANDLING
    202          1.259       dsl static void bad144intern(struct wd_softc *);
    203          1.170       leo #endif
    204            1.1       cgd 
    205          1.239   thorpej #define	WD_QUIRK_SPLIT_MOD15_WRITE	0x0001	/* must split certain writes */
    206          1.295    bouyer #define	WD_QUIRK_FORCE_LBA48		0x0002	/* must use LBA48 commands */
    207          1.239   thorpej 
    208          1.239   thorpej /*
    209          1.239   thorpej  * Quirk table for IDE drives.  Put more-specific matches first, since
    210          1.239   thorpej  * a simple globbing routine is used for matching.
    211          1.239   thorpej  */
    212          1.239   thorpej static const struct wd_quirk {
    213          1.239   thorpej 	const char *wdq_match;		/* inquiry pattern to match */
    214          1.239   thorpej 	int wdq_quirks;			/* drive quirks */
    215          1.239   thorpej } wd_quirk_table[] = {
    216          1.239   thorpej 	/*
    217          1.239   thorpej 	 * Some Seagate S-ATA drives have a PHY which can get confused
    218          1.239   thorpej 	 * with the way data is packetized by some S-ATA controllers.
    219          1.239   thorpej 	 *
    220          1.246     mason 	 * The work-around is to split in two any write transfer whose
    221          1.239   thorpej 	 * sector count % 15 == 1 (assuming 512 byte sectors).
    222          1.239   thorpej 	 *
    223          1.239   thorpej 	 * XXX This is an incomplete list.  There are at least a couple
    224          1.239   thorpej 	 * XXX more model numbers.  If you have trouble with such transfers
    225          1.239   thorpej 	 * XXX (8K is the most common) on Seagate S-ATA drives, please
    226          1.269    keihan 	 * XXX notify thorpej (at) NetBSD.org.
    227          1.239   thorpej 	 */
    228          1.239   thorpej 	{ "ST3120023AS",
    229          1.247  explorer 	  WD_QUIRK_SPLIT_MOD15_WRITE },
    230          1.247  explorer 	{ "ST380023AS",
    231          1.239   thorpej 	  WD_QUIRK_SPLIT_MOD15_WRITE },
    232          1.239   thorpej 
    233          1.295    bouyer 	/*
    234          1.295    bouyer 	 * This seagate drive seems to have issue addressing sector 0xfffffff
    235          1.295    bouyer 	 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force
    236          1.295    bouyer 	 * LBA48
    237          1.295    bouyer 	 */
    238  1.298.2.7.2.5      ghen 	{ "ST3160021A*",
    239  1.298.2.7.2.5      ghen 	  WD_QUIRK_FORCE_LBA48 },
    240  1.298.2.7.2.6      ghen 	{ "ST3160811A*",
    241  1.298.2.7.2.6      ghen 	  WD_QUIRK_FORCE_LBA48 },
    242  1.298.2.7.2.3       riz 	{ "ST3160812A*",
    243  1.298.2.7.2.3       riz 	  WD_QUIRK_FORCE_LBA48 },
    244      1.298.2.5      tron 	{ "ST3160023A*",
    245      1.298.2.5      tron 	  WD_QUIRK_FORCE_LBA48 },
    246  1.298.2.7.2.2       riz 	{ "ST3160827A*",
    247          1.295    bouyer 	  WD_QUIRK_FORCE_LBA48 },
    248  1.298.2.7.2.4      tron 	/* Attempt to catch all seagate drives larger than 200GB */
    249  1.298.2.7.2.4      tron 	{ "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*",
    250      1.298.2.2      tron 	  WD_QUIRK_FORCE_LBA48 },
    251          1.239   thorpej 	{ NULL,
    252          1.239   thorpej 	  0 }
    253          1.239   thorpej };
    254          1.239   thorpej 
    255          1.239   thorpej static const struct wd_quirk *
    256          1.239   thorpej wd_lookup_quirks(const char *name)
    257          1.239   thorpej {
    258          1.239   thorpej 	const struct wd_quirk *wdq;
    259          1.239   thorpej 	const char *estr;
    260          1.239   thorpej 
    261          1.239   thorpej 	for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) {
    262          1.239   thorpej 		/*
    263          1.239   thorpej 		 * We only want exact matches (which include matches
    264          1.239   thorpej 		 * against globbing characters).
    265          1.239   thorpej 		 */
    266          1.239   thorpej 		if (pmatch(name, wdq->wdq_match, &estr) == 2)
    267          1.239   thorpej 			return (wdq);
    268          1.239   thorpej 	}
    269          1.239   thorpej 	return (NULL);
    270          1.239   thorpej }
    271          1.239   thorpej 
    272            1.1       cgd int
    273          1.259       dsl wdprobe(struct device *parent, struct cfdata *match, void *aux)
    274            1.1       cgd {
    275          1.216    bouyer 	struct ata_device *adev = aux;
    276          1.167   thorpej 
    277          1.216    bouyer 	if (adev == NULL)
    278          1.181    bouyer 		return 0;
    279          1.216    bouyer 	if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA)
    280           1.64   mycroft 		return 0;
    281          1.181    bouyer 
    282          1.263    bouyer 	if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT &&
    283          1.263    bouyer 	    match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive)
    284           1.74   mycroft 		return 0;
    285           1.74   mycroft 	return 1;
    286           1.74   mycroft }
    287           1.64   mycroft 
    288           1.74   mycroft void
    289          1.259       dsl wdattach(struct device *parent, struct device *self, void *aux)
    290           1.74   mycroft {
    291           1.74   mycroft 	struct wd_softc *wd = (void *)self;
    292          1.216    bouyer 	struct ata_device *adev= aux;
    293           1.74   mycroft 	int i, blank;
    294          1.201     enami 	char buf[41], pbuf[9], c, *p, *q;
    295          1.239   thorpej 	const struct wd_quirk *wdq;
    296          1.289   thorpej 	ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE);
    297           1.56   mycroft 
    298          1.203   thorpej 	callout_init(&wd->sc_restart_ch);
    299          1.274      yamt 	bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT()|BUFQ_SORT_RAWBLOCK);
    300          1.292  drochner #ifdef WD_SOFTBADSECT
    301          1.241   darrenr 	SLIST_INIT(&wd->sc_bslist);
    302          1.292  drochner #endif
    303          1.217    bouyer 	wd->atabus = adev->adev_bustype;
    304          1.216    bouyer 	wd->openings = adev->adev_openings;
    305          1.235    simonb 	wd->drvp = adev->adev_drv_data;
    306          1.270   thorpej 
    307          1.270   thorpej 	wd->drvp->drv_done = wddone;
    308          1.181    bouyer 	wd->drvp->drv_softc = &wd->sc_dev;
    309          1.181    bouyer 
    310          1.253   thorpej 	aprint_naive("\n");
    311          1.253   thorpej 
    312          1.181    bouyer 	/* read our drive info */
    313          1.261   mycroft 	if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) {
    314          1.253   thorpej 		aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname);
    315          1.181    bouyer 		return;
    316          1.181    bouyer 	}
    317          1.163    bouyer 
    318          1.181    bouyer 	for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0;
    319          1.181    bouyer 	    i < sizeof(wd->sc_params.atap_model); i++) {
    320          1.135   mycroft 		c = *p++;
    321          1.135   mycroft 		if (c == '\0')
    322          1.135   mycroft 			break;
    323          1.135   mycroft 		if (c != ' ') {
    324          1.135   mycroft 			if (blank) {
    325          1.135   mycroft 				*q++ = ' ';
    326          1.135   mycroft 				blank = 0;
    327          1.135   mycroft 			}
    328          1.135   mycroft 			*q++ = c;
    329          1.135   mycroft 		} else
    330          1.135   mycroft 			blank = 1;
    331          1.195     enami 	}
    332          1.135   mycroft 	*q++ = '\0';
    333          1.135   mycroft 
    334          1.253   thorpej 	aprint_normal(": <%s>\n", buf);
    335          1.113   mycroft 
    336          1.239   thorpej 	wdq = wd_lookup_quirks(buf);
    337          1.239   thorpej 	if (wdq != NULL)
    338          1.239   thorpej 		wd->sc_quirks = wdq->wdq_quirks;
    339          1.239   thorpej 
    340          1.181    bouyer 	if ((wd->sc_params.atap_multi & 0xff) > 1) {
    341          1.181    bouyer 		wd->sc_multi = wd->sc_params.atap_multi & 0xff;
    342          1.113   mycroft 	} else {
    343          1.181    bouyer 		wd->sc_multi = 1;
    344          1.113   mycroft 	}
    345          1.113   mycroft 
    346          1.253   thorpej 	aprint_normal("%s: drive supports %d-sector PIO transfers,",
    347          1.184    bouyer 	    wd->sc_dev.dv_xname, wd->sc_multi);
    348          1.172   mycroft 
    349          1.220  christos 	/* 48-bit LBA addressing */
    350          1.268      yamt 	if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0)
    351          1.220  christos 		wd->sc_flags |= WDF_LBA48;
    352          1.220  christos 
    353          1.172   mycroft 	/* Prior to ATA-4, LBA was optional. */
    354          1.181    bouyer 	if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0)
    355          1.181    bouyer 		wd->sc_flags |= WDF_LBA;
    356          1.174   mycroft #if 0
    357          1.172   mycroft 	/* ATA-4 requires LBA. */
    358          1.181    bouyer 	if (wd->sc_params.atap_ataversion != 0xffff &&
    359          1.181    bouyer 	    wd->sc_params.atap_ataversion >= WDC_VER_ATA4)
    360          1.181    bouyer 		wd->sc_flags |= WDF_LBA;
    361          1.174   mycroft #endif
    362          1.172   mycroft 
    363          1.220  christos 	if ((wd->sc_flags & WDF_LBA48) != 0) {
    364          1.253   thorpej 		aprint_normal(" LBA48 addressing\n");
    365          1.220  christos 		wd->sc_capacity =
    366          1.220  christos 		    ((u_int64_t) wd->sc_params.__reserved6[11] << 48) |
    367          1.220  christos 		    ((u_int64_t) wd->sc_params.__reserved6[10] << 32) |
    368          1.220  christos 		    ((u_int64_t) wd->sc_params.__reserved6[9]  << 16) |
    369          1.220  christos 		    ((u_int64_t) wd->sc_params.__reserved6[8]  << 0);
    370          1.220  christos 	} else if ((wd->sc_flags & WDF_LBA) != 0) {
    371          1.253   thorpej 		aprint_normal(" LBA addressing\n");
    372          1.181    bouyer 		wd->sc_capacity =
    373  1.298.2.7.2.1      tron 		    ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) |
    374          1.181    bouyer 		    wd->sc_params.atap_capacity[0];
    375          1.172   mycroft 	} else {
    376          1.253   thorpej 		aprint_normal(" chs addressing\n");
    377          1.181    bouyer 		wd->sc_capacity =
    378          1.181    bouyer 		    wd->sc_params.atap_cylinders *
    379          1.181    bouyer 		    wd->sc_params.atap_heads *
    380          1.181    bouyer 		    wd->sc_params.atap_sectors;
    381          1.172   mycroft 	}
    382          1.240      fvdl 	format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE);
    383          1.253   thorpej 	aprint_normal("%s: %s, %d cyl, %d head, %d sec, "
    384          1.240      fvdl 	    "%d bytes/sect x %llu sectors\n",
    385          1.260    bouyer 	    self->dv_xname, pbuf,
    386          1.260    bouyer 	    (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity /
    387          1.260    bouyer 		(wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) :
    388          1.260    bouyer 		wd->sc_params.atap_cylinders,
    389          1.201     enami 	    wd->sc_params.atap_heads, wd->sc_params.atap_sectors,
    390          1.240      fvdl 	    DEV_BSIZE, (unsigned long long)wd->sc_capacity);
    391          1.201     enami 
    392          1.289   thorpej 	ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n",
    393          1.181    bouyer 	    self->dv_xname, wd->sc_params.atap_dmatiming_mimi,
    394          1.181    bouyer 	    wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE);
    395          1.181    bouyer 	/*
    396          1.181    bouyer 	 * Initialize and attach the disk structure.
    397          1.181    bouyer 	 */
    398          1.181    bouyer 	wd->sc_dk.dk_driver = &wddkdriver;
    399          1.181    bouyer 	wd->sc_dk.dk_name = wd->sc_dev.dv_xname;
    400          1.181    bouyer 	disk_attach(&wd->sc_dk);
    401          1.181    bouyer 	wd->sc_wdc_bio.lp = wd->sc_dk.dk_label;
    402          1.196     enami 	wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd);
    403          1.196     enami 	if (wd->sc_sdhook == NULL)
    404          1.253   thorpej 		aprint_error("%s: WARNING: unable to establish shutdown hook\n",
    405          1.259       dsl 		    wd->sc_dev.dv_xname);
    406          1.166  explorer #if NRND > 0
    407          1.193  explorer 	rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname,
    408          1.193  explorer 			  RND_TYPE_DISK, 0);
    409          1.166  explorer #endif
    410          1.294   thorpej 
    411          1.294   thorpej 	/* Discover wedges on this disk. */
    412          1.294   thorpej 	dkwedge_discover(&wd->sc_dk);
    413          1.196     enami }
    414          1.196     enami 
    415          1.196     enami int
    416          1.259       dsl wdactivate(struct device *self, enum devact act)
    417          1.196     enami {
    418          1.196     enami 	int rv = 0;
    419          1.196     enami 
    420          1.196     enami 	switch (act) {
    421          1.196     enami 	case DVACT_ACTIVATE:
    422          1.196     enami 		rv = EOPNOTSUPP;
    423          1.196     enami 		break;
    424          1.196     enami 
    425          1.196     enami 	case DVACT_DEACTIVATE:
    426          1.196     enami 		/*
    427          1.196     enami 		 * Nothing to do; we key off the device's DVF_ACTIVATE.
    428          1.196     enami 		 */
    429          1.196     enami 		break;
    430          1.196     enami 	}
    431          1.196     enami 	return (rv);
    432          1.196     enami }
    433          1.196     enami 
    434          1.196     enami int
    435          1.259       dsl wddetach(struct device *self, int flags)
    436          1.196     enami {
    437          1.196     enami 	struct wd_softc *sc = (struct wd_softc *)self;
    438          1.213  drochner 	int s, bmaj, cmaj, i, mn;
    439          1.196     enami 
    440          1.196     enami 	/* locate the major number */
    441          1.225   gehenna 	bmaj = bdevsw_lookup_major(&wd_bdevsw);
    442          1.225   gehenna 	cmaj = cdevsw_lookup_major(&wd_cdevsw);
    443          1.196     enami 
    444          1.286   mycroft 	/* Nuke the vnodes for any open instances. */
    445          1.286   mycroft 	for (i = 0; i < MAXPARTITIONS; i++) {
    446          1.286   mycroft 		mn = WDMINOR(self->dv_unit, i);
    447          1.286   mycroft 		vdevgone(bmaj, mn, mn, VBLK);
    448          1.286   mycroft 		vdevgone(cmaj, mn, mn, VCHR);
    449          1.286   mycroft 	}
    450          1.286   mycroft 
    451          1.294   thorpej 	/* Delete all of our wedges. */
    452          1.294   thorpej 	dkwedge_delall(&sc->sc_dk);
    453          1.294   thorpej 
    454          1.196     enami 	s = splbio();
    455          1.196     enami 
    456          1.259       dsl 	/* Kill off any queued buffers. */
    457      1.298.2.1      tron 	bufq_drain(&sc->sc_q);
    458          1.224   hannken 
    459          1.224   hannken 	bufq_free(&sc->sc_q);
    460          1.285    bouyer 	sc->atabus->ata_killpending(sc->drvp);
    461          1.196     enami 
    462          1.196     enami 	splx(s);
    463          1.196     enami 
    464          1.196     enami 	/* Detach disk. */
    465          1.196     enami 	disk_detach(&sc->sc_dk);
    466          1.196     enami 
    467          1.292  drochner #ifdef WD_SOFTBADSECT
    468          1.282    bouyer 	/* Clean out the bad sector list */
    469          1.282    bouyer 	while (!SLIST_EMPTY(&sc->sc_bslist)) {
    470          1.282    bouyer 		void *head = SLIST_FIRST(&sc->sc_bslist);
    471          1.282    bouyer 		SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next);
    472          1.282    bouyer 		free(head, M_TEMP);
    473          1.282    bouyer 	}
    474          1.282    bouyer 	sc->sc_bscount = 0;
    475          1.292  drochner #endif
    476          1.282    bouyer 
    477          1.196     enami 	/* Get rid of the shutdown hook. */
    478          1.196     enami 	if (sc->sc_sdhook != NULL)
    479          1.196     enami 		shutdownhook_disestablish(sc->sc_sdhook);
    480          1.196     enami 
    481          1.196     enami #if NRND > 0
    482          1.196     enami 	/* Unhook the entropy source. */
    483          1.196     enami 	rnd_detach_source(&sc->rnd_source);
    484          1.196     enami #endif
    485          1.196     enami 
    486          1.284    bouyer 	sc->drvp->drive_flags = 0; /* no drive any more here */
    487          1.283    bouyer 
    488          1.196     enami 	return (0);
    489            1.1       cgd }
    490            1.1       cgd 
    491           1.64   mycroft /*
    492          1.135   mycroft  * Read/write routine for a buffer.  Validates the arguments and schedules the
    493          1.135   mycroft  * transfer.  Does not wait for the transfer to complete.
    494            1.1       cgd  */
    495           1.64   mycroft void
    496          1.259       dsl wdstrategy(struct buf *bp)
    497            1.1       cgd {
    498          1.209   thorpej 	struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev));
    499          1.202   thorpej 	struct disklabel *lp = wd->sc_dk.dk_label;
    500          1.202   thorpej 	daddr_t blkno;
    501           1.37   mycroft 	int s;
    502          1.202   thorpej 
    503          1.289   thorpej 	ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname),
    504          1.182    bouyer 	    DEBUG_XFERS);
    505          1.259       dsl 
    506          1.135   mycroft 	/* Valid request?  */
    507          1.135   mycroft 	if (bp->b_blkno < 0 ||
    508          1.202   thorpej 	    (bp->b_bcount % lp->d_secsize) != 0 ||
    509          1.202   thorpej 	    (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) {
    510            1.1       cgd 		bp->b_error = EINVAL;
    511           1.93   mycroft 		goto bad;
    512            1.1       cgd 	}
    513          1.259       dsl 
    514          1.135   mycroft 	/* If device invalidated (e.g. media change, door open), error. */
    515          1.181    bouyer 	if ((wd->sc_flags & WDF_LOADED) == 0) {
    516          1.135   mycroft 		bp->b_error = EIO;
    517          1.135   mycroft 		goto bad;
    518          1.135   mycroft 	}
    519          1.135   mycroft 
    520           1.93   mycroft 	/* If it's a null transfer, return immediately. */
    521           1.93   mycroft 	if (bp->b_bcount == 0)
    522           1.93   mycroft 		goto done;
    523           1.93   mycroft 
    524          1.128   mycroft 	/*
    525          1.128   mycroft 	 * Do bounds checking, adjust transfer. if error, process.
    526          1.128   mycroft 	 * If end of partition, just return.
    527          1.128   mycroft 	 */
    528          1.240      fvdl 	if (WDPART(bp->b_dev) == RAW_PART) {
    529          1.240      fvdl 		if (bounds_check_with_mediasize(bp, DEV_BSIZE,
    530          1.240      fvdl 		    wd->sc_capacity) <= 0)
    531          1.240      fvdl 			goto done;
    532          1.240      fvdl 	} else {
    533          1.252   thorpej 		if (bounds_check_with_label(&wd->sc_dk, bp,
    534          1.240      fvdl 		    (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0)
    535          1.240      fvdl 			goto done;
    536          1.240      fvdl 	}
    537          1.202   thorpej 
    538          1.202   thorpej 	/*
    539          1.202   thorpej 	 * Now convert the block number to absolute and put it in
    540          1.202   thorpej 	 * terms of the device's logical block size.
    541          1.202   thorpej 	 */
    542          1.202   thorpej 	if (lp->d_secsize >= DEV_BSIZE)
    543          1.202   thorpej 		blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE);
    544          1.202   thorpej 	else
    545          1.202   thorpej 		blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize);
    546          1.202   thorpej 
    547          1.202   thorpej 	if (WDPART(bp->b_dev) != RAW_PART)
    548          1.202   thorpej 		blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset;
    549          1.202   thorpej 
    550          1.202   thorpej 	bp->b_rawblkno = blkno;
    551          1.202   thorpej 
    552          1.292  drochner #ifdef WD_SOFTBADSECT
    553          1.241   darrenr 	/*
    554          1.241   darrenr 	 * If the transfer about to be attempted contains only a block that
    555          1.241   darrenr 	 * is known to be bad then return an error for the transfer without
    556          1.241   darrenr 	 * even attempting to start a transfer up under the premis that we
    557          1.241   darrenr 	 * will just end up doing more retries for a transfer that will end
    558          1.241   darrenr 	 * up failing again.
    559          1.241   darrenr 	 * XXX:SMP - mutex required to protect with DIOCBSFLUSH
    560          1.241   darrenr 	 */
    561          1.241   darrenr 	if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) {
    562          1.241   darrenr 		struct disk_badsectors *dbs;
    563          1.278   mycroft 		daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1;
    564          1.241   darrenr 
    565          1.241   darrenr 		SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next)
    566          1.243   darrenr 			if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) ||
    567          1.245   darrenr 			    (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){
    568          1.245   darrenr 				bp->b_error = EIO;
    569          1.241   darrenr 				goto bad;
    570          1.245   darrenr 			}
    571          1.241   darrenr 	}
    572          1.292  drochner #endif
    573          1.241   darrenr 
    574           1.64   mycroft 	/* Queue transfer on drive, activate drive and controller if idle. */
    575            1.1       cgd 	s = splbio();
    576          1.223   hannken 	BUFQ_PUT(&wd->sc_q, bp);
    577          1.163    bouyer 	wdstart(wd);
    578            1.1       cgd 	splx(s);
    579           1.64   mycroft 	return;
    580           1.93   mycroft bad:
    581           1.93   mycroft 	bp->b_flags |= B_ERROR;
    582            1.1       cgd done:
    583           1.64   mycroft 	/* Toss transfer; we're done early. */
    584          1.135   mycroft 	bp->b_resid = bp->b_bcount;
    585            1.1       cgd 	biodone(bp);
    586            1.1       cgd }
    587            1.1       cgd 
    588            1.1       cgd /*
    589          1.135   mycroft  * Queue a drive for I/O.
    590            1.1       cgd  */
    591          1.108   mycroft void
    592          1.259       dsl wdstart(void *arg)
    593            1.1       cgd {
    594          1.163    bouyer 	struct wd_softc *wd = arg;
    595          1.200   thorpej 	struct buf *bp = NULL;
    596          1.163    bouyer 
    597          1.289   thorpej 	ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname),
    598          1.182    bouyer 	    DEBUG_XFERS);
    599          1.181    bouyer 	while (wd->openings > 0) {
    600          1.163    bouyer 
    601          1.163    bouyer 		/* Is there a buf for us ? */
    602          1.223   hannken 		if ((bp = BUFQ_GET(&wd->sc_q)) == NULL)
    603          1.200   thorpej 			return;
    604          1.259       dsl 
    605          1.259       dsl 		/*
    606          1.163    bouyer 		 * Make the command. First lock the device
    607          1.163    bouyer 		 */
    608          1.181    bouyer 		wd->openings--;
    609          1.181    bouyer 
    610          1.181    bouyer 		wd->retries = 0;
    611          1.181    bouyer 		__wdstart(wd, bp);
    612          1.181    bouyer 	}
    613          1.181    bouyer }
    614          1.181    bouyer 
    615          1.239   thorpej static void
    616          1.239   thorpej wd_split_mod15_write(struct buf *bp)
    617          1.239   thorpej {
    618          1.239   thorpej 	struct buf *obp = bp->b_private;
    619          1.239   thorpej 	struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)];
    620          1.239   thorpej 
    621          1.239   thorpej 	if (__predict_false(bp->b_flags & B_ERROR) != 0) {
    622          1.239   thorpej 		/*
    623          1.239   thorpej 		 * Propagate the error.  If this was the first half of
    624          1.239   thorpej 		 * the original transfer, make sure to account for that
    625          1.239   thorpej 		 * in the residual.
    626          1.239   thorpej 		 */
    627          1.239   thorpej 		if (bp->b_data == obp->b_data)
    628          1.239   thorpej 			bp->b_resid += bp->b_bcount;
    629          1.239   thorpej 		goto done;
    630          1.239   thorpej 	}
    631          1.239   thorpej 
    632          1.239   thorpej 	/*
    633          1.239   thorpej 	 * If this was the second half of the transfer, we're all done!
    634          1.239   thorpej 	 */
    635          1.239   thorpej 	if (bp->b_data != obp->b_data)
    636          1.239   thorpej 		goto done;
    637          1.239   thorpej 
    638          1.239   thorpej 	/*
    639          1.239   thorpej 	 * Advance the pointer to the second half and issue that command
    640          1.239   thorpej 	 * using the same opening.
    641          1.239   thorpej 	 */
    642          1.239   thorpej 	bp->b_flags = obp->b_flags | B_CALL;
    643          1.239   thorpej 	bp->b_data += bp->b_bcount;
    644          1.239   thorpej 	bp->b_blkno += (bp->b_bcount / 512);
    645          1.239   thorpej 	bp->b_rawblkno += (bp->b_bcount / 512);
    646          1.239   thorpej 	__wdstart(sc, bp);
    647          1.239   thorpej 	return;
    648          1.239   thorpej 
    649          1.239   thorpej  done:
    650          1.239   thorpej 	obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR));
    651          1.239   thorpej 	obp->b_error = bp->b_error;
    652          1.239   thorpej 	obp->b_resid = bp->b_resid;
    653          1.239   thorpej 	pool_put(&bufpool, bp);
    654          1.239   thorpej 	biodone(obp);
    655          1.239   thorpej 	sc->openings++;
    656          1.239   thorpej 	/* wddone() will call wdstart() */
    657          1.239   thorpej }
    658          1.239   thorpej 
    659          1.181    bouyer void
    660          1.259       dsl __wdstart(struct wd_softc *wd, struct buf *bp)
    661          1.181    bouyer {
    662          1.202   thorpej 
    663          1.239   thorpej 	/*
    664          1.239   thorpej 	 * Deal with the "split mod15 write" quirk.  We just divide the
    665          1.239   thorpej 	 * transfer in two, doing the first half and then then second half
    666          1.239   thorpej 	 * with the same command opening.
    667          1.239   thorpej 	 *
    668          1.239   thorpej 	 * Note we MUST do this here, because we can't let insertion
    669          1.239   thorpej 	 * into the bufq cause the transfers to be re-merged.
    670          1.239   thorpej 	 */
    671          1.239   thorpej 	if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 &&
    672          1.239   thorpej 			    (bp->b_flags & B_READ) == 0 &&
    673          1.239   thorpej 			    bp->b_bcount > 512 &&
    674          1.239   thorpej 			    ((bp->b_bcount / 512) % 15) == 1)) {
    675          1.239   thorpej 		struct buf *nbp;
    676          1.239   thorpej 
    677          1.239   thorpej 		/* already at splbio */
    678          1.239   thorpej 		nbp = pool_get(&bufpool, PR_NOWAIT);
    679          1.239   thorpej 		if (__predict_false(nbp == NULL)) {
    680          1.239   thorpej 			/* No memory -- fail the iop. */
    681          1.239   thorpej 			bp->b_error = ENOMEM;
    682          1.239   thorpej 			bp->b_flags |= B_ERROR;
    683          1.239   thorpej 			bp->b_resid = bp->b_bcount;
    684          1.239   thorpej 			biodone(bp);
    685          1.239   thorpej 			wd->openings++;
    686          1.239   thorpej 			return;
    687          1.239   thorpej 		}
    688          1.239   thorpej 
    689          1.239   thorpej 		BUF_INIT(nbp);
    690          1.239   thorpej 		nbp->b_error = 0;
    691          1.239   thorpej 		nbp->b_proc = bp->b_proc;
    692          1.239   thorpej 		nbp->b_vp = NULLVP;
    693          1.239   thorpej 		nbp->b_dev = bp->b_dev;
    694          1.239   thorpej 
    695          1.239   thorpej 		nbp->b_bcount = bp->b_bcount / 2;
    696          1.239   thorpej 		nbp->b_bufsize = bp->b_bcount / 2;
    697          1.239   thorpej 		nbp->b_data = bp->b_data;
    698          1.239   thorpej 
    699          1.239   thorpej 		nbp->b_blkno = bp->b_blkno;
    700          1.239   thorpej 		nbp->b_rawblkno = bp->b_rawblkno;
    701          1.239   thorpej 
    702          1.239   thorpej 		nbp->b_flags = bp->b_flags | B_CALL;
    703          1.239   thorpej 		nbp->b_iodone = wd_split_mod15_write;
    704          1.239   thorpej 
    705          1.239   thorpej 		/* Put ptr to orig buf in b_private and use new buf */
    706          1.239   thorpej 		nbp->b_private = bp;
    707          1.273      yamt 
    708          1.273      yamt 		BIO_COPYPRIO(nbp, bp);
    709          1.273      yamt 
    710          1.239   thorpej 		bp = nbp;
    711          1.239   thorpej 	}
    712          1.239   thorpej 
    713          1.202   thorpej 	wd->sc_wdc_bio.blkno = bp->b_rawblkno;
    714          1.181    bouyer 	wd->sc_wdc_bio.blkdone =0;
    715          1.181    bouyer 	wd->sc_bp = bp;
    716          1.181    bouyer 	/*
    717          1.181    bouyer 	 * If we're retrying, retry in single-sector mode. This will give us
    718          1.181    bouyer 	 * the sector number of the problem, and will eventually allow the
    719          1.184    bouyer 	 * transfer to succeed.
    720          1.181    bouyer 	 */
    721          1.279   mycroft 	if (wd->retries >= WDIORETRIES_SINGLE)
    722          1.181    bouyer 		wd->sc_wdc_bio.flags = ATA_SINGLE;
    723          1.181    bouyer 	else
    724          1.181    bouyer 		wd->sc_wdc_bio.flags = 0;
    725          1.295    bouyer 	if (wd->sc_flags & WDF_LBA48 &&
    726          1.295    bouyer 	    (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD ||
    727          1.295    bouyer 	    (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0))
    728          1.220  christos 		wd->sc_wdc_bio.flags |= ATA_LBA48;
    729          1.181    bouyer 	if (wd->sc_flags & WDF_LBA)
    730          1.181    bouyer 		wd->sc_wdc_bio.flags |= ATA_LBA;
    731          1.181    bouyer 	if (bp->b_flags & B_READ)
    732          1.181    bouyer 		wd->sc_wdc_bio.flags |= ATA_READ;
    733          1.181    bouyer 	wd->sc_wdc_bio.bcount = bp->b_bcount;
    734          1.181    bouyer 	wd->sc_wdc_bio.databuf = bp->b_data;
    735          1.181    bouyer 	/* Instrumentation. */
    736          1.181    bouyer 	disk_busy(&wd->sc_dk);
    737          1.217    bouyer 	switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) {
    738          1.288   thorpej 	case ATACMD_TRY_AGAIN:
    739          1.203   thorpej 		callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd);
    740          1.181    bouyer 		break;
    741          1.288   thorpej 	case ATACMD_QUEUED:
    742          1.288   thorpej 	case ATACMD_COMPLETE:
    743          1.181    bouyer 		break;
    744          1.181    bouyer 	default:
    745          1.217    bouyer 		panic("__wdstart: bad return code from ata_bio()");
    746          1.181    bouyer 	}
    747          1.181    bouyer }
    748          1.181    bouyer 
    749          1.181    bouyer void
    750          1.259       dsl wddone(void *v)
    751          1.181    bouyer {
    752          1.181    bouyer 	struct wd_softc *wd = v;
    753          1.181    bouyer 	struct buf *bp = wd->sc_bp;
    754          1.221      yamt 	const char *errmsg;
    755          1.221      yamt 	int do_perror = 0;
    756          1.289   thorpej 	ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname),
    757          1.182    bouyer 	    DEBUG_XFERS);
    758  1.298.2.7.2.7       riz 	int nblks;
    759          1.181    bouyer 
    760          1.214     bjh21 	if (bp == NULL)
    761          1.214     bjh21 		return;
    762          1.181    bouyer 	bp->b_resid = wd->sc_wdc_bio.bcount;
    763          1.181    bouyer 	switch (wd->sc_wdc_bio.error) {
    764          1.181    bouyer 	case ERR_DMA:
    765          1.221      yamt 		errmsg = "DMA error";
    766          1.181    bouyer 		goto retry;
    767          1.181    bouyer 	case ERR_DF:
    768          1.221      yamt 		errmsg = "device fault";
    769          1.181    bouyer 		goto retry;
    770          1.181    bouyer 	case TIMEOUT:
    771          1.221      yamt 		errmsg = "device timeout";
    772          1.181    bouyer 		goto retry;
    773          1.281    bouyer 	case ERR_RESET:
    774          1.281    bouyer 		errmsg = "channel reset";
    775          1.281    bouyer 		goto retry2;
    776          1.181    bouyer 	case ERROR:
    777          1.181    bouyer 		/* Don't care about media change bits */
    778          1.181    bouyer 		if (wd->sc_wdc_bio.r_error != 0 &&
    779          1.181    bouyer 		    (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0)
    780          1.181    bouyer 			goto noerror;
    781          1.221      yamt 		errmsg = "error";
    782          1.221      yamt 		do_perror = 1;
    783  1.298.2.7.2.7       riz 		if (wd->sc_wdc_bio.r_error & WDCE_IDNF &&
    784  1.298.2.7.2.7       riz 		    (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) {
    785  1.298.2.7.2.7       riz 			nblks = wd->sc_wdc_bio.bcount /
    786  1.298.2.7.2.7       riz 			    wd->sc_dk.dk_label->d_secsize;
    787  1.298.2.7.2.7       riz 			/*
    788  1.298.2.7.2.7       riz 			 * If we get a "id not found" when crossing the
    789  1.298.2.7.2.7       riz 			 * LBA48_THRESHOLD, and the drive is larger than
    790  1.298.2.7.2.7       riz 			 * 128GB, then we can assume the drive has the
    791  1.298.2.7.2.7       riz 			 * LBA48 bug and we switch to LBA48.
    792  1.298.2.7.2.7       riz 			 */
    793  1.298.2.7.2.7       riz 			if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD &&
    794  1.298.2.7.2.7       riz 			    wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD &&
    795  1.298.2.7.2.7       riz 			    wd->sc_capacity > LBA48_THRESHOLD + 1) {
    796  1.298.2.7.2.7       riz 				errmsg = "LBA48 bug";
    797  1.298.2.7.2.7       riz 				wd->sc_quirks |= WD_QUIRK_FORCE_LBA48;
    798  1.298.2.7.2.7       riz 				do_perror = 0;
    799  1.298.2.7.2.7       riz 				goto retry2;
    800  1.298.2.7.2.7       riz 			}
    801  1.298.2.7.2.7       riz 		}
    802          1.181    bouyer retry:		/* Just reset and retry. Can we do more ? */
    803          1.293    bouyer 		(*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD);
    804          1.281    bouyer retry2:
    805          1.221      yamt 		diskerr(bp, "wd", errmsg, LOG_PRINTF,
    806          1.181    bouyer 		    wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label);
    807          1.221      yamt 		if (wd->retries < WDIORETRIES)
    808  1.298.2.7.2.7       riz 			printf(", retrying");
    809  1.298.2.7.2.7       riz 		printf("\n");
    810          1.221      yamt 		if (do_perror)
    811          1.221      yamt 			wdperror(wd);
    812          1.221      yamt 		if (wd->retries < WDIORETRIES) {
    813          1.221      yamt 			wd->retries++;
    814          1.203   thorpej 			callout_reset(&wd->sc_restart_ch, RECOVERYTIME,
    815          1.203   thorpej 			    wdrestart, wd);
    816          1.181    bouyer 			return;
    817          1.181    bouyer 		}
    818          1.241   darrenr 
    819          1.292  drochner #ifdef WD_SOFTBADSECT
    820          1.241   darrenr 		/*
    821          1.241   darrenr 		 * Not all errors indicate a failed block but those that do,
    822          1.241   darrenr 		 * put the block on the bad-block list for the device.  Only
    823          1.241   darrenr 		 * do this for reads because the drive should do it for writes,
    824          1.241   darrenr 		 * itself, according to Manuel.
    825          1.241   darrenr 		 */
    826          1.242    dogcow 		if ((bp->b_flags & B_READ) &&
    827          1.241   darrenr 		    ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) ||
    828          1.242    dogcow 	     	     (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) {
    829          1.241   darrenr 			struct disk_badsectors *dbs;
    830          1.241   darrenr 
    831          1.241   darrenr 			dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK);
    832          1.241   darrenr 			dbs->dbs_min = bp->b_rawblkno;
    833          1.278   mycroft 			dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1;
    834          1.241   darrenr 			microtime(&dbs->dbs_failedat);
    835          1.241   darrenr 			SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next);
    836          1.243   darrenr 			wd->sc_bscount++;
    837          1.241   darrenr 		}
    838          1.292  drochner #endif
    839          1.181    bouyer 		bp->b_flags |= B_ERROR;
    840          1.181    bouyer 		bp->b_error = EIO;
    841          1.181    bouyer 		break;
    842          1.181    bouyer 	case NOERROR:
    843          1.181    bouyer noerror:	if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0)
    844          1.181    bouyer 			printf("%s: soft error (corrected)\n",
    845          1.181    bouyer 			    wd->sc_dev.dv_xname);
    846          1.197     enami 		break;
    847          1.197     enami 	case ERR_NODEV:
    848          1.197     enami 		bp->b_flags |= B_ERROR;
    849          1.197     enami 		bp->b_error = EIO;
    850          1.197     enami 		break;
    851           1.64   mycroft 	}
    852          1.232       mrg 	disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid),
    853          1.232       mrg 	    (bp->b_flags & B_READ));
    854          1.181    bouyer #if NRND > 0
    855          1.181    bouyer 	rnd_add_uint32(&wd->rnd_source, bp->b_blkno);
    856          1.181    bouyer #endif
    857          1.239   thorpej 	/* XXX Yuck, but we don't want to increment openings in this case */
    858          1.239   thorpej 	if (__predict_false((bp->b_flags & B_CALL) != 0 &&
    859          1.239   thorpej 			    bp->b_iodone == wd_split_mod15_write))
    860          1.239   thorpej 		biodone(bp);
    861          1.239   thorpej 	else {
    862          1.239   thorpej 		biodone(bp);
    863          1.239   thorpej 		wd->openings++;
    864          1.239   thorpej 	}
    865          1.181    bouyer 	wdstart(wd);
    866          1.181    bouyer }
    867          1.181    bouyer 
    868          1.181    bouyer void
    869          1.259       dsl wdrestart(void *v)
    870          1.181    bouyer {
    871          1.181    bouyer 	struct wd_softc *wd = v;
    872          1.181    bouyer 	struct buf *bp = wd->sc_bp;
    873          1.181    bouyer 	int s;
    874          1.289   thorpej 	ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname),
    875          1.182    bouyer 	    DEBUG_XFERS);
    876          1.181    bouyer 
    877          1.181    bouyer 	s = splbio();
    878          1.181    bouyer 	__wdstart(v, bp);
    879          1.181    bouyer 	splx(s);
    880          1.141   mycroft }
    881          1.141   mycroft 
    882          1.141   mycroft int
    883          1.259       dsl wdread(dev_t dev, struct uio *uio, int flags)
    884          1.141   mycroft {
    885          1.141   mycroft 
    886          1.289   thorpej 	ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS);
    887          1.141   mycroft 	return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio));
    888          1.141   mycroft }
    889          1.141   mycroft 
    890          1.141   mycroft int
    891          1.259       dsl wdwrite(dev_t dev, struct uio *uio, int flags)
    892          1.141   mycroft {
    893          1.141   mycroft 
    894          1.289   thorpej 	ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS);
    895          1.141   mycroft 	return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio));
    896           1.64   mycroft }
    897           1.64   mycroft 
    898            1.1       cgd int
    899          1.259       dsl wdopen(dev_t dev, int flag, int fmt, struct proc *p)
    900            1.1       cgd {
    901          1.135   mycroft 	struct wd_softc *wd;
    902          1.208   thorpej 	int part, error;
    903          1.163    bouyer 
    904          1.289   thorpej 	ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS);
    905          1.208   thorpej 	wd = device_lookup(&wd_cd, WDUNIT(dev));
    906          1.158        pk 	if (wd == NULL)
    907          1.208   thorpej 		return (ENXIO);
    908          1.187   thorpej 
    909          1.283    bouyer 	if ((wd->sc_dev.dv_flags & DVF_ACTIVE) == 0)
    910          1.283    bouyer 		return (ENODEV);
    911          1.283    bouyer 
    912          1.294   thorpej 	part = WDPART(dev);
    913          1.294   thorpej 
    914          1.294   thorpej 	if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0)
    915          1.294   thorpej 		return (error);
    916          1.294   thorpej 
    917          1.294   thorpej 	/*
    918          1.294   thorpej 	 * If there are wedges, and this is not RAW_PART, then we
    919          1.294   thorpej 	 * need to fail.
    920          1.294   thorpej 	 */
    921          1.294   thorpej 	if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) {
    922          1.294   thorpej 		error = EBUSY;
    923          1.294   thorpej 		goto bad1;
    924          1.294   thorpej 	}
    925          1.294   thorpej 
    926          1.187   thorpej 	/*
    927          1.187   thorpej 	 * If this is the first open of this device, add a reference
    928          1.187   thorpej 	 * to the adapter.
    929          1.187   thorpej 	 */
    930          1.187   thorpej 	if (wd->sc_dk.dk_openmask == 0 &&
    931          1.217    bouyer 	    (error = wd->atabus->ata_addref(wd->drvp)) != 0)
    932          1.294   thorpej 		goto bad1;
    933            1.3   deraadt 
    934          1.109   mycroft 	if (wd->sc_dk.dk_openmask != 0) {
    935          1.109   mycroft 		/*
    936          1.109   mycroft 		 * If any partition is open, but the disk has been invalidated,
    937          1.109   mycroft 		 * disallow further opens.
    938          1.109   mycroft 		 */
    939          1.181    bouyer 		if ((wd->sc_flags & WDF_LOADED) == 0) {
    940          1.136   mycroft 			error = EIO;
    941          1.294   thorpej 			goto bad2;
    942          1.136   mycroft 		}
    943          1.109   mycroft 	} else {
    944          1.181    bouyer 		if ((wd->sc_flags & WDF_LOADED) == 0) {
    945          1.181    bouyer 			wd->sc_flags |= WDF_LOADED;
    946          1.108   mycroft 
    947          1.108   mycroft 			/* Load the physical device parameters. */
    948          1.183    bouyer 			wd_get_params(wd, AT_WAIT, &wd->sc_params);
    949          1.108   mycroft 
    950          1.108   mycroft 			/* Load the partition info if not already loaded. */
    951          1.108   mycroft 			wdgetdisklabel(wd);
    952          1.108   mycroft 		}
    953          1.135   mycroft 	}
    954          1.108   mycroft 
    955          1.109   mycroft 	/* Check that the partition exists. */
    956           1.93   mycroft 	if (part != RAW_PART &&
    957          1.144   thorpej 	    (part >= wd->sc_dk.dk_label->d_npartitions ||
    958          1.144   thorpej 	     wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) {
    959           1.93   mycroft 		error = ENXIO;
    960          1.294   thorpej 		goto bad2;
    961           1.93   mycroft 	}
    962          1.259       dsl 
    963           1.64   mycroft 	/* Insure only one open at a time. */
    964            1.3   deraadt 	switch (fmt) {
    965            1.3   deraadt 	case S_IFCHR:
    966           1.94   mycroft 		wd->sc_dk.dk_copenmask |= (1 << part);
    967            1.3   deraadt 		break;
    968            1.3   deraadt 	case S_IFBLK:
    969           1.94   mycroft 		wd->sc_dk.dk_bopenmask |= (1 << part);
    970            1.3   deraadt 		break;
    971            1.3   deraadt 	}
    972          1.181    bouyer 	wd->sc_dk.dk_openmask =
    973          1.181    bouyer 	    wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask;
    974           1.60   mycroft 
    975          1.294   thorpej 	(void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL);
    976           1.37   mycroft 	return 0;
    977           1.93   mycroft 
    978          1.294   thorpej  bad2:
    979          1.187   thorpej 	if (wd->sc_dk.dk_openmask == 0)
    980          1.217    bouyer 		wd->atabus->ata_delref(wd->drvp);
    981          1.294   thorpej  bad1:
    982          1.294   thorpej 	(void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL);
    983           1.93   mycroft 	return error;
    984            1.1       cgd }
    985            1.1       cgd 
    986          1.135   mycroft int
    987          1.259       dsl wdclose(dev_t dev, int flag, int fmt, struct proc *p)
    988          1.135   mycroft {
    989          1.209   thorpej 	struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev));
    990          1.135   mycroft 	int part = WDPART(dev);
    991          1.135   mycroft 	int error;
    992          1.259       dsl 
    993          1.289   thorpej 	ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS);
    994          1.294   thorpej 
    995          1.294   thorpej 	if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0)
    996          1.135   mycroft 		return error;
    997          1.135   mycroft 
    998          1.135   mycroft 	switch (fmt) {
    999          1.135   mycroft 	case S_IFCHR:
   1000          1.135   mycroft 		wd->sc_dk.dk_copenmask &= ~(1 << part);
   1001          1.135   mycroft 		break;
   1002          1.135   mycroft 	case S_IFBLK:
   1003          1.135   mycroft 		wd->sc_dk.dk_bopenmask &= ~(1 << part);
   1004          1.135   mycroft 		break;
   1005          1.135   mycroft 	}
   1006          1.181    bouyer 	wd->sc_dk.dk_openmask =
   1007          1.181    bouyer 	    wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask;
   1008          1.135   mycroft 
   1009          1.135   mycroft 	if (wd->sc_dk.dk_openmask == 0) {
   1010          1.194    bouyer 		wd_flushcache(wd, AT_WAIT);
   1011          1.187   thorpej 
   1012          1.199       leo 		if (! (wd->sc_flags & WDF_KLABEL))
   1013          1.199       leo 			wd->sc_flags &= ~WDF_LOADED;
   1014          1.199       leo 
   1015          1.217    bouyer 		wd->atabus->ata_delref(wd->drvp);
   1016          1.135   mycroft 	}
   1017          1.135   mycroft 
   1018          1.294   thorpej 	(void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL);
   1019          1.135   mycroft 	return 0;
   1020          1.135   mycroft }
   1021          1.135   mycroft 
   1022          1.108   mycroft void
   1023          1.259       dsl wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp)
   1024          1.108   mycroft {
   1025          1.163    bouyer 
   1026          1.289   thorpej 	ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS);
   1027          1.181    bouyer 	memset(lp, 0, sizeof(struct disklabel));
   1028          1.108   mycroft 
   1029          1.142   mycroft 	lp->d_secsize = DEV_BSIZE;
   1030          1.181    bouyer 	lp->d_ntracks = wd->sc_params.atap_heads;
   1031          1.181    bouyer 	lp->d_nsectors = wd->sc_params.atap_sectors;
   1032          1.260    bouyer 	lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity /
   1033          1.260    bouyer 		(wd->sc_params.atap_heads * wd->sc_params.atap_sectors) :
   1034          1.260    bouyer 		wd->sc_params.atap_cylinders;
   1035          1.142   mycroft 	lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
   1036          1.108   mycroft 
   1037          1.198       leo 	if (strcmp(wd->sc_params.atap_model, "ST506") == 0)
   1038          1.181    bouyer 		lp->d_type = DTYPE_ST506;
   1039          1.198       leo 	else
   1040          1.181    bouyer 		lp->d_type = DTYPE_ESDI;
   1041          1.198       leo 
   1042          1.181    bouyer 	strncpy(lp->d_typename, wd->sc_params.atap_model, 16);
   1043          1.180  drochner 	strncpy(lp->d_packname, "fictitious", 16);
   1044          1.240      fvdl 	if (wd->sc_capacity > UINT32_MAX)
   1045          1.240      fvdl 		lp->d_secperunit = UINT32_MAX;
   1046          1.240      fvdl 	else
   1047          1.240      fvdl 		lp->d_secperunit = wd->sc_capacity;
   1048          1.142   mycroft 	lp->d_rpm = 3600;
   1049          1.142   mycroft 	lp->d_interleave = 1;
   1050          1.142   mycroft 	lp->d_flags = 0;
   1051          1.142   mycroft 
   1052          1.142   mycroft 	lp->d_partitions[RAW_PART].p_offset = 0;
   1053          1.142   mycroft 	lp->d_partitions[RAW_PART].p_size =
   1054          1.259       dsl 	    lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
   1055          1.142   mycroft 	lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED;
   1056          1.142   mycroft 	lp->d_npartitions = RAW_PART + 1;
   1057          1.142   mycroft 
   1058          1.142   mycroft 	lp->d_magic = DISKMAGIC;
   1059          1.142   mycroft 	lp->d_magic2 = DISKMAGIC;
   1060          1.142   mycroft 	lp->d_checksum = dkcksum(lp);
   1061          1.164   thorpej }
   1062          1.164   thorpej 
   1063          1.164   thorpej /*
   1064          1.164   thorpej  * Fabricate a default disk label, and try to read the correct one.
   1065          1.164   thorpej  */
   1066          1.164   thorpej void
   1067          1.259       dsl wdgetdisklabel(struct wd_softc *wd)
   1068          1.164   thorpej {
   1069          1.164   thorpej 	struct disklabel *lp = wd->sc_dk.dk_label;
   1070          1.251       dsl 	const char *errstring;
   1071          1.291   thorpej 	int s;
   1072          1.164   thorpej 
   1073          1.289   thorpej 	ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS);
   1074          1.164   thorpej 
   1075          1.181    bouyer 	memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel));
   1076          1.164   thorpej 
   1077          1.164   thorpej 	wdgetdefaultlabel(wd, lp);
   1078          1.108   mycroft 
   1079          1.181    bouyer 	wd->sc_badsect[0] = -1;
   1080          1.113   mycroft 
   1081          1.291   thorpej 	if (wd->drvp->state > RESET) {
   1082          1.291   thorpej 		s = splbio();
   1083          1.183    bouyer 		wd->drvp->drive_flags |= DRIVE_RESET;
   1084          1.291   thorpej 		splx(s);
   1085          1.291   thorpej 	}
   1086          1.108   mycroft 	errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART),
   1087          1.144   thorpej 	    wdstrategy, lp, wd->sc_dk.dk_cpulabel);
   1088          1.108   mycroft 	if (errstring) {
   1089          1.108   mycroft 		/*
   1090          1.108   mycroft 		 * This probably happened because the drive's default
   1091          1.108   mycroft 		 * geometry doesn't match the DOS geometry.  We
   1092          1.108   mycroft 		 * assume the DOS geometry is now in the label and try
   1093          1.108   mycroft 		 * again.  XXX This is a kluge.
   1094          1.108   mycroft 		 */
   1095          1.291   thorpej 		if (wd->drvp->state > RESET) {
   1096          1.291   thorpej 			s = splbio();
   1097          1.183    bouyer 			wd->drvp->drive_flags |= DRIVE_RESET;
   1098          1.291   thorpej 			splx(s);
   1099          1.291   thorpej 		}
   1100          1.181    bouyer 		errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit,
   1101          1.181    bouyer 		    RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel);
   1102          1.108   mycroft 	}
   1103          1.108   mycroft 	if (errstring) {
   1104          1.153  christos 		printf("%s: %s\n", wd->sc_dev.dv_xname, errstring);
   1105          1.108   mycroft 		return;
   1106          1.108   mycroft 	}
   1107          1.108   mycroft 
   1108          1.291   thorpej 	if (wd->drvp->state > RESET) {
   1109          1.291   thorpej 		s = splbio();
   1110          1.183    bouyer 		wd->drvp->drive_flags |= DRIVE_RESET;
   1111          1.291   thorpej 		splx(s);
   1112          1.291   thorpej 	}
   1113          1.170       leo #ifdef HAS_BAD144_HANDLING
   1114          1.142   mycroft 	if ((lp->d_flags & D_BADSECT) != 0)
   1115          1.108   mycroft 		bad144intern(wd);
   1116          1.170       leo #endif
   1117          1.108   mycroft }
   1118          1.108   mycroft 
   1119          1.217    bouyer void
   1120          1.259       dsl wdperror(const struct wd_softc *wd)
   1121          1.217    bouyer {
   1122          1.221      yamt 	static const char *const errstr0_3[] = {"address mark not found",
   1123          1.217    bouyer 	    "track 0 not found", "aborted command", "media change requested",
   1124          1.217    bouyer 	    "id not found", "media changed", "uncorrectable data error",
   1125          1.217    bouyer 	    "bad block detected"};
   1126          1.221      yamt 	static const char *const errstr4_5[] = {
   1127          1.221      yamt 	    "obsolete (address mark not found)",
   1128          1.217    bouyer 	    "no media/write protected", "aborted command",
   1129          1.217    bouyer 	    "media change requested", "id not found", "media changed",
   1130          1.217    bouyer 	    "uncorrectable data error", "interface CRC error"};
   1131          1.259       dsl 	const char *const *errstr;
   1132          1.217    bouyer 	int i;
   1133          1.217    bouyer 	char *sep = "";
   1134          1.217    bouyer 
   1135          1.221      yamt 	const char *devname = wd->sc_dev.dv_xname;
   1136          1.221      yamt 	struct ata_drive_datas *drvp = wd->drvp;
   1137          1.221      yamt 	int errno = wd->sc_wdc_bio.r_error;
   1138          1.221      yamt 
   1139          1.217    bouyer 	if (drvp->ata_vers >= 4)
   1140          1.217    bouyer 		errstr = errstr4_5;
   1141          1.217    bouyer 	else
   1142          1.217    bouyer 		errstr = errstr0_3;
   1143          1.217    bouyer 
   1144          1.221      yamt 	printf("%s: (", devname);
   1145          1.221      yamt 
   1146          1.217    bouyer 	if (errno == 0)
   1147          1.221      yamt 		printf("error not notified");
   1148          1.217    bouyer 
   1149          1.217    bouyer 	for (i = 0; i < 8; i++) {
   1150          1.217    bouyer 		if (errno & (1 << i)) {
   1151          1.221      yamt 			printf("%s%s", sep, errstr[i]);
   1152          1.217    bouyer 			sep = ", ";
   1153          1.217    bouyer 		}
   1154          1.217    bouyer 	}
   1155          1.221      yamt 	printf(")\n");
   1156          1.217    bouyer }
   1157          1.217    bouyer 
   1158            1.1       cgd int
   1159          1.259       dsl wdioctl(dev_t dev, u_long xfer, caddr_t addr, int flag, struct proc *p)
   1160            1.1       cgd {
   1161          1.209   thorpej 	struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev));
   1162          1.291   thorpej 	int error = 0, s;
   1163          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1164          1.233      fvdl 	struct disklabel *newlabel = NULL;
   1165          1.211      fvdl #endif
   1166          1.163    bouyer 
   1167          1.289   thorpej 	ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS);
   1168          1.163    bouyer 
   1169          1.181    bouyer 	if ((wd->sc_flags & WDF_LOADED) == 0)
   1170          1.108   mycroft 		return EIO;
   1171          1.108   mycroft 
   1172          1.163    bouyer 	switch (xfer) {
   1173          1.170       leo #ifdef HAS_BAD144_HANDLING
   1174            1.1       cgd 	case DIOCSBAD:
   1175            1.3   deraadt 		if ((flag & FWRITE) == 0)
   1176           1.54   mycroft 			return EBADF;
   1177          1.144   thorpej 		wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr;
   1178          1.144   thorpej 		wd->sc_dk.dk_label->d_flags |= D_BADSECT;
   1179           1.64   mycroft 		bad144intern(wd);
   1180           1.54   mycroft 		return 0;
   1181          1.170       leo #endif
   1182          1.292  drochner #ifdef WD_SOFTBADSECT
   1183          1.241   darrenr 	case DIOCBSLIST :
   1184          1.241   darrenr 	{
   1185          1.243   darrenr 		u_int32_t count, missing, skip;
   1186          1.243   darrenr 		struct disk_badsecinfo dbsi;
   1187          1.241   darrenr 		struct disk_badsectors *dbs;
   1188          1.241   darrenr 		size_t available;
   1189          1.243   darrenr 		caddr_t laddr;
   1190          1.241   darrenr 
   1191          1.243   darrenr 		dbsi = *(struct disk_badsecinfo *)addr;
   1192          1.243   darrenr 		missing = wd->sc_bscount;
   1193          1.241   darrenr 		count = 0;
   1194          1.243   darrenr 		available = dbsi.dbsi_bufsize;
   1195          1.243   darrenr 		skip = dbsi.dbsi_skip;
   1196          1.243   darrenr 		laddr = dbsi.dbsi_buffer;
   1197          1.243   darrenr 
   1198          1.243   darrenr 		/*
   1199          1.243   darrenr 		 * We start this loop with the expectation that all of the
   1200          1.243   darrenr 		 * entries will be missed and decrement this counter each
   1201          1.243   darrenr 		 * time we either skip over one (already copied out) or
   1202          1.243   darrenr 		 * we actually copy it back to user space.  The structs
   1203          1.243   darrenr 		 * holding the bad sector information are copied directly
   1204          1.243   darrenr 		 * back to user space whilst the summary is returned via
   1205          1.243   darrenr 		 * the struct passed in via the ioctl.
   1206          1.243   darrenr 		 */
   1207          1.241   darrenr 		SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) {
   1208          1.243   darrenr 			if (skip > 0) {
   1209          1.243   darrenr 				missing--;
   1210          1.243   darrenr 				skip--;
   1211          1.243   darrenr 				continue;
   1212          1.243   darrenr 			}
   1213          1.243   darrenr 			if (available < sizeof(*dbs))
   1214          1.241   darrenr 				break;
   1215          1.243   darrenr 			available -= sizeof(*dbs);
   1216          1.241   darrenr 			copyout(dbs, laddr, sizeof(*dbs));
   1217          1.241   darrenr 			laddr += sizeof(*dbs);
   1218          1.243   darrenr 			missing--;
   1219          1.241   darrenr 			count++;
   1220          1.241   darrenr 		}
   1221          1.243   darrenr 		dbsi.dbsi_left = missing;
   1222          1.243   darrenr 		dbsi.dbsi_copied = count;
   1223          1.243   darrenr 		*(struct disk_badsecinfo *)addr = dbsi;
   1224          1.241   darrenr 		return 0;
   1225          1.241   darrenr 	}
   1226          1.241   darrenr 
   1227          1.241   darrenr 	case DIOCBSFLUSH :
   1228          1.241   darrenr 		/* Clean out the bad sector list */
   1229          1.241   darrenr 		while (!SLIST_EMPTY(&wd->sc_bslist)) {
   1230          1.241   darrenr 			void *head = SLIST_FIRST(&wd->sc_bslist);
   1231          1.241   darrenr 			SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next);
   1232          1.241   darrenr 			free(head, M_TEMP);
   1233          1.241   darrenr 		}
   1234          1.243   darrenr 		wd->sc_bscount = 0;
   1235          1.241   darrenr 		return 0;
   1236          1.292  drochner #endif
   1237            1.1       cgd 	case DIOCGDINFO:
   1238          1.144   thorpej 		*(struct disklabel *)addr = *(wd->sc_dk.dk_label);
   1239           1.54   mycroft 		return 0;
   1240          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1241          1.211      fvdl 	case ODIOCGDINFO:
   1242          1.233      fvdl 		newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1243          1.233      fvdl 		if (newlabel == NULL)
   1244          1.233      fvdl 			return EIO;
   1245          1.234      fvdl 		*newlabel = *(wd->sc_dk.dk_label);
   1246          1.233      fvdl 		if (newlabel->d_npartitions <= OLDMAXPARTITIONS)
   1247          1.234      fvdl 			memcpy(addr, newlabel, sizeof (struct olddisklabel));
   1248          1.233      fvdl 		else
   1249          1.233      fvdl 			error = ENOTTY;
   1250          1.233      fvdl 		free(newlabel, M_TEMP);
   1251          1.233      fvdl 		return error;
   1252          1.211      fvdl #endif
   1253          1.211      fvdl 
   1254            1.3   deraadt 	case DIOCGPART:
   1255          1.144   thorpej 		((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label;
   1256            1.3   deraadt 		((struct partinfo *)addr)->part =
   1257          1.144   thorpej 		    &wd->sc_dk.dk_label->d_partitions[WDPART(dev)];
   1258           1.54   mycroft 		return 0;
   1259          1.259       dsl 
   1260          1.132   mycroft 	case DIOCWDINFO:
   1261            1.3   deraadt 	case DIOCSDINFO:
   1262          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1263          1.211      fvdl 	case ODIOCWDINFO:
   1264          1.211      fvdl 	case ODIOCSDINFO:
   1265          1.211      fvdl #endif
   1266          1.211      fvdl 	{
   1267          1.211      fvdl 		struct disklabel *lp;
   1268          1.211      fvdl 
   1269          1.233      fvdl 		if ((flag & FWRITE) == 0)
   1270          1.233      fvdl 			return EBADF;
   1271          1.233      fvdl 
   1272          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1273          1.211      fvdl 		if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) {
   1274          1.233      fvdl 			newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1275          1.233      fvdl 			if (newlabel == NULL)
   1276          1.233      fvdl 				return EIO;
   1277          1.233      fvdl 			memset(newlabel, 0, sizeof newlabel);
   1278          1.233      fvdl 			memcpy(newlabel, addr, sizeof (struct olddisklabel));
   1279          1.233      fvdl 			lp = newlabel;
   1280          1.211      fvdl 		} else
   1281          1.211      fvdl #endif
   1282          1.211      fvdl 		lp = (struct disklabel *)addr;
   1283          1.211      fvdl 
   1284          1.294   thorpej 		if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE,
   1285          1.294   thorpej 				     NULL)) != 0)
   1286          1.233      fvdl 			goto bad;
   1287          1.181    bouyer 		wd->sc_flags |= WDF_LABELLING;
   1288          1.132   mycroft 
   1289          1.144   thorpej 		error = setdisklabel(wd->sc_dk.dk_label,
   1290          1.211      fvdl 		    lp, /*wd->sc_dk.dk_openmask : */0,
   1291          1.144   thorpej 		    wd->sc_dk.dk_cpulabel);
   1292            1.3   deraadt 		if (error == 0) {
   1293          1.291   thorpej 			if (wd->drvp->state > RESET) {
   1294          1.291   thorpej 				s = splbio();
   1295          1.183    bouyer 				wd->drvp->drive_flags |= DRIVE_RESET;
   1296          1.291   thorpej 				splx(s);
   1297          1.291   thorpej 			}
   1298          1.211      fvdl 			if (xfer == DIOCWDINFO
   1299          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1300          1.211      fvdl 			    || xfer == ODIOCWDINFO
   1301          1.211      fvdl #endif
   1302          1.211      fvdl 			    )
   1303          1.132   mycroft 				error = writedisklabel(WDLABELDEV(dev),
   1304          1.144   thorpej 				    wdstrategy, wd->sc_dk.dk_label,
   1305          1.144   thorpej 				    wd->sc_dk.dk_cpulabel);
   1306            1.1       cgd 		}
   1307          1.132   mycroft 
   1308          1.181    bouyer 		wd->sc_flags &= ~WDF_LABELLING;
   1309          1.294   thorpej 		(void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL);
   1310          1.233      fvdl bad:
   1311          1.233      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1312          1.233      fvdl 		if (newlabel != NULL)
   1313          1.233      fvdl 			free(newlabel, M_TEMP);
   1314          1.233      fvdl #endif
   1315           1.54   mycroft 		return error;
   1316          1.211      fvdl 	}
   1317          1.199       leo 
   1318          1.199       leo 	case DIOCKLABEL:
   1319          1.199       leo 		if (*(int *)addr)
   1320          1.199       leo 			wd->sc_flags |= WDF_KLABEL;
   1321          1.199       leo 		else
   1322          1.199       leo 			wd->sc_flags &= ~WDF_KLABEL;
   1323          1.199       leo 		return 0;
   1324          1.259       dsl 
   1325           1.44   mycroft 	case DIOCWLABEL:
   1326            1.3   deraadt 		if ((flag & FWRITE) == 0)
   1327           1.54   mycroft 			return EBADF;
   1328           1.93   mycroft 		if (*(int *)addr)
   1329          1.181    bouyer 			wd->sc_flags |= WDF_WLABEL;
   1330           1.93   mycroft 		else
   1331          1.181    bouyer 			wd->sc_flags &= ~WDF_WLABEL;
   1332           1.54   mycroft 		return 0;
   1333          1.164   thorpej 
   1334          1.164   thorpej 	case DIOCGDEFLABEL:
   1335          1.164   thorpej 		wdgetdefaultlabel(wd, (struct disklabel *)addr);
   1336          1.164   thorpej 		return 0;
   1337          1.211      fvdl #ifdef __HAVE_OLD_DISKLABEL
   1338          1.211      fvdl 	case ODIOCGDEFLABEL:
   1339          1.233      fvdl 		newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK);
   1340          1.233      fvdl 		if (newlabel == NULL)
   1341          1.233      fvdl 			return EIO;
   1342          1.233      fvdl 		wdgetdefaultlabel(wd, newlabel);
   1343          1.233      fvdl 		if (newlabel->d_npartitions <= OLDMAXPARTITIONS)
   1344          1.233      fvdl 			memcpy(addr, &newlabel, sizeof (struct olddisklabel));
   1345          1.233      fvdl 		else
   1346          1.233      fvdl 			error = ENOTTY;
   1347          1.233      fvdl 		free(newlabel, M_TEMP);
   1348          1.233      fvdl 		return error;
   1349          1.211      fvdl #endif
   1350          1.164   thorpej 
   1351            1.1       cgd #ifdef notyet
   1352            1.1       cgd 	case DIOCWFORMAT:
   1353            1.1       cgd 		if ((flag & FWRITE) == 0)
   1354           1.54   mycroft 			return EBADF;
   1355          1.181    bouyer 		{
   1356           1.54   mycroft 		register struct format_op *fop;
   1357           1.54   mycroft 		struct iovec aiov;
   1358           1.54   mycroft 		struct uio auio;
   1359          1.259       dsl 
   1360           1.54   mycroft 		fop = (struct format_op *)addr;
   1361           1.54   mycroft 		aiov.iov_base = fop->df_buf;
   1362           1.54   mycroft 		aiov.iov_len = fop->df_count;
   1363           1.54   mycroft 		auio.uio_iov = &aiov;
   1364           1.54   mycroft 		auio.uio_iovcnt = 1;
   1365           1.54   mycroft 		auio.uio_resid = fop->df_count;
   1366           1.54   mycroft 		auio.uio_segflg = 0;
   1367           1.54   mycroft 		auio.uio_offset =
   1368          1.181    bouyer 			fop->df_startblk * wd->sc_dk.dk_label->d_secsize;
   1369           1.83        pk 		auio.uio_procp = p;
   1370           1.64   mycroft 		error = physio(wdformat, NULL, dev, B_WRITE, minphys,
   1371           1.64   mycroft 		    &auio);
   1372           1.54   mycroft 		fop->df_count -= auio.uio_resid;
   1373           1.64   mycroft 		fop->df_reg[0] = wdc->sc_status;
   1374           1.64   mycroft 		fop->df_reg[1] = wdc->sc_error;
   1375           1.54   mycroft 		return error;
   1376          1.181    bouyer 		}
   1377            1.1       cgd #endif
   1378          1.248    bouyer 	case DIOCGCACHE:
   1379          1.248    bouyer 		return wd_getcache(wd, (int *)addr);
   1380          1.248    bouyer 
   1381          1.248    bouyer 	case DIOCSCACHE:
   1382          1.248    bouyer 		return wd_setcache(wd, *(int *)addr);
   1383          1.185      kenh 
   1384          1.276    bouyer 	case DIOCCACHESYNC:
   1385          1.276    bouyer 		return wd_flushcache(wd, AT_WAIT);
   1386          1.276    bouyer 
   1387          1.186      kenh 	case ATAIOCCOMMAND:
   1388          1.185      kenh 		/*
   1389          1.185      kenh 		 * Make sure this command is (relatively) safe first
   1390          1.185      kenh 		 */
   1391          1.186      kenh 		if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 &&
   1392          1.185      kenh 		    (flag & FWRITE) == 0)
   1393          1.185      kenh 			return (EBADF);
   1394          1.185      kenh 		{
   1395          1.185      kenh 		struct wd_ioctl *wi;
   1396          1.186      kenh 		atareq_t *atareq = (atareq_t *) addr;
   1397          1.185      kenh 		int error;
   1398          1.185      kenh 
   1399          1.185      kenh 		wi = wi_get();
   1400          1.185      kenh 		wi->wi_softc = wd;
   1401          1.186      kenh 		wi->wi_atareq = *atareq;
   1402          1.185      kenh 
   1403          1.186      kenh 		if (atareq->datalen && atareq->flags &
   1404          1.186      kenh 		    (ATACMD_READ | ATACMD_WRITE)) {
   1405          1.186      kenh 			wi->wi_iov.iov_base = atareq->databuf;
   1406          1.186      kenh 			wi->wi_iov.iov_len = atareq->datalen;
   1407          1.185      kenh 			wi->wi_uio.uio_iov = &wi->wi_iov;
   1408          1.185      kenh 			wi->wi_uio.uio_iovcnt = 1;
   1409          1.186      kenh 			wi->wi_uio.uio_resid = atareq->datalen;
   1410          1.185      kenh 			wi->wi_uio.uio_offset = 0;
   1411          1.185      kenh 			wi->wi_uio.uio_segflg = UIO_USERSPACE;
   1412          1.185      kenh 			wi->wi_uio.uio_rw =
   1413          1.186      kenh 			    (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE;
   1414          1.257      fvdl 			wi->wi_uio.uio_procp = p;
   1415          1.185      kenh 			error = physio(wdioctlstrategy, &wi->wi_bp, dev,
   1416          1.186      kenh 			    (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE,
   1417          1.185      kenh 			    minphys, &wi->wi_uio);
   1418          1.185      kenh 		} else {
   1419          1.185      kenh 			/* No need to call physio if we don't have any
   1420          1.185      kenh 			   user data */
   1421          1.185      kenh 			wi->wi_bp.b_flags = 0;
   1422          1.185      kenh 			wi->wi_bp.b_data = 0;
   1423          1.185      kenh 			wi->wi_bp.b_bcount = 0;
   1424          1.185      kenh 			wi->wi_bp.b_dev = 0;
   1425          1.257      fvdl 			wi->wi_bp.b_proc = p;
   1426          1.185      kenh 			wdioctlstrategy(&wi->wi_bp);
   1427          1.185      kenh 			error = wi->wi_bp.b_error;
   1428          1.185      kenh 		}
   1429          1.186      kenh 		*atareq = wi->wi_atareq;
   1430          1.185      kenh 		wi_free(wi);
   1431          1.185      kenh 		return(error);
   1432          1.185      kenh 		}
   1433          1.185      kenh 
   1434          1.294   thorpej 	case DIOCAWEDGE:
   1435          1.294   thorpej 	    {
   1436          1.294   thorpej 	    	struct dkwedge_info *dkw = (void *) addr;
   1437          1.294   thorpej 
   1438          1.294   thorpej 		if ((flag & FWRITE) == 0)
   1439          1.294   thorpej 			return (EBADF);
   1440          1.294   thorpej 
   1441          1.294   thorpej 		/* If the ioctl happens here, the parent is us. */
   1442          1.294   thorpej 		strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname);
   1443          1.294   thorpej 		return (dkwedge_add(dkw));
   1444          1.294   thorpej 	    }
   1445          1.294   thorpej 
   1446          1.294   thorpej 	case DIOCDWEDGE:
   1447          1.294   thorpej 	    {
   1448          1.294   thorpej 	    	struct dkwedge_info *dkw = (void *) addr;
   1449          1.294   thorpej 
   1450          1.294   thorpej 		if ((flag & FWRITE) == 0)
   1451          1.294   thorpej 			return (EBADF);
   1452          1.294   thorpej 
   1453          1.294   thorpej 		/* If the ioctl happens here, the parent is us. */
   1454          1.294   thorpej 		strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname);
   1455          1.294   thorpej 		return (dkwedge_del(dkw));
   1456          1.294   thorpej 	    }
   1457          1.294   thorpej 
   1458          1.294   thorpej 	case DIOCLWEDGES:
   1459          1.294   thorpej 	    {
   1460          1.294   thorpej 	    	struct dkwedge_list *dkwl = (void *) addr;
   1461          1.294   thorpej 
   1462          1.294   thorpej 		return (dkwedge_list(&wd->sc_dk, dkwl, p));
   1463          1.294   thorpej 	    }
   1464          1.294   thorpej 
   1465            1.1       cgd 	default:
   1466           1.54   mycroft 		return ENOTTY;
   1467            1.1       cgd 	}
   1468           1.54   mycroft 
   1469           1.54   mycroft #ifdef DIAGNOSTIC
   1470           1.54   mycroft 	panic("wdioctl: impossible");
   1471           1.54   mycroft #endif
   1472            1.1       cgd }
   1473            1.1       cgd 
   1474           1.44   mycroft #ifdef B_FORMAT
   1475            1.1       cgd int
   1476            1.1       cgd wdformat(struct buf *bp)
   1477            1.1       cgd {
   1478           1.44   mycroft 
   1479            1.1       cgd 	bp->b_flags |= B_FORMAT;
   1480           1.37   mycroft 	return wdstrategy(bp);
   1481            1.1       cgd }
   1482            1.1       cgd #endif
   1483            1.1       cgd 
   1484            1.1       cgd int
   1485          1.259       dsl wdsize(dev_t dev)
   1486            1.1       cgd {
   1487           1.64   mycroft 	struct wd_softc *wd;
   1488          1.208   thorpej 	int part, omask;
   1489          1.108   mycroft 	int size;
   1490          1.163    bouyer 
   1491          1.289   thorpej 	ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS);
   1492          1.163    bouyer 
   1493          1.208   thorpej 	wd = device_lookup(&wd_cd, WDUNIT(dev));
   1494          1.158        pk 	if (wd == NULL)
   1495          1.158        pk 		return (-1);
   1496          1.158        pk 
   1497          1.158        pk 	part = WDPART(dev);
   1498          1.158        pk 	omask = wd->sc_dk.dk_openmask & (1 << part);
   1499          1.158        pk 
   1500          1.158        pk 	if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0)
   1501          1.158        pk 		return (-1);
   1502          1.144   thorpej 	if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP)
   1503          1.108   mycroft 		size = -1;
   1504          1.108   mycroft 	else
   1505          1.160   thorpej 		size = wd->sc_dk.dk_label->d_partitions[part].p_size *
   1506          1.181    bouyer 		    (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE);
   1507          1.158        pk 	if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0)
   1508          1.158        pk 		return (-1);
   1509          1.158        pk 	return (size);
   1510            1.1       cgd }
   1511            1.1       cgd 
   1512          1.140       cgd /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */
   1513          1.181    bouyer static int wddoingadump = 0;
   1514          1.181    bouyer static int wddumprecalibrated = 0;
   1515          1.181    bouyer static int wddumpmulti = 1;
   1516          1.140       cgd 
   1517           1.64   mycroft /*
   1518           1.64   mycroft  * Dump core after a system crash.
   1519           1.64   mycroft  */
   1520            1.1       cgd int
   1521          1.259       dsl wddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size)
   1522          1.140       cgd {
   1523          1.140       cgd 	struct wd_softc *wd;	/* disk unit to do the I/O */
   1524          1.181    bouyer 	struct disklabel *lp;   /* disk's disklabel */
   1525          1.208   thorpej 	int part, err;
   1526          1.181    bouyer 	int nblks;	/* total number of sectors left to write */
   1527          1.140       cgd 
   1528          1.140       cgd 	/* Check if recursive dump; if so, punt. */
   1529          1.116   mycroft 	if (wddoingadump)
   1530          1.116   mycroft 		return EFAULT;
   1531          1.142   mycroft 	wddoingadump = 1;
   1532          1.140       cgd 
   1533          1.208   thorpej 	wd = device_lookup(&wd_cd, WDUNIT(dev));
   1534          1.208   thorpej 	if (wd == NULL)
   1535          1.208   thorpej 		return (ENXIO);
   1536           1.60   mycroft 
   1537          1.140       cgd 	part = WDPART(dev);
   1538          1.140       cgd 
   1539          1.181    bouyer 	/* Convert to disk sectors.  Request must be a multiple of size. */
   1540          1.144   thorpej 	lp = wd->sc_dk.dk_label;
   1541          1.142   mycroft 	if ((size % lp->d_secsize) != 0)
   1542          1.140       cgd 		return EFAULT;
   1543          1.142   mycroft 	nblks = size / lp->d_secsize;
   1544          1.142   mycroft 	blkno = blkno / (lp->d_secsize / DEV_BSIZE);
   1545          1.116   mycroft 
   1546           1.64   mycroft 	/* Check transfer bounds against partition size. */
   1547          1.142   mycroft 	if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size))
   1548          1.259       dsl 		return EINVAL;
   1549          1.140       cgd 
   1550          1.140       cgd 	/* Offset block number to start of partition. */
   1551          1.142   mycroft 	blkno += lp->d_partitions[part].p_offset;
   1552           1.60   mycroft 
   1553          1.140       cgd 	/* Recalibrate, if first dump transfer. */
   1554          1.140       cgd 	if (wddumprecalibrated == 0) {
   1555          1.181    bouyer 		wddumpmulti = wd->sc_multi;
   1556          1.140       cgd 		wddumprecalibrated = 1;
   1557          1.290   thorpej 		(*wd->atabus->ata_reset_drive)(wd->drvp,
   1558          1.290   thorpej 					       AT_POLL | AT_RST_EMERG);
   1559          1.205    bouyer 		wd->drvp->state = RESET;
   1560           1.63   mycroft 	}
   1561          1.259       dsl 
   1562          1.142   mycroft 	while (nblks > 0) {
   1563          1.214     bjh21 		wd->sc_bp = NULL;
   1564          1.181    bouyer 		wd->sc_wdc_bio.blkno = blkno;
   1565          1.181    bouyer 		wd->sc_wdc_bio.flags = ATA_POLL;
   1566          1.295    bouyer 		if (wd->sc_flags & WDF_LBA48 &&
   1567          1.295    bouyer 		    (blkno > LBA48_THRESHOLD ||
   1568          1.295    bouyer 	    	    (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0))
   1569          1.220  christos 			wd->sc_wdc_bio.flags |= ATA_LBA48;
   1570          1.181    bouyer 		if (wd->sc_flags & WDF_LBA)
   1571          1.181    bouyer 			wd->sc_wdc_bio.flags |= ATA_LBA;
   1572          1.181    bouyer 		wd->sc_wdc_bio.bcount =
   1573          1.181    bouyer 			min(nblks, wddumpmulti) * lp->d_secsize;
   1574          1.181    bouyer 		wd->sc_wdc_bio.databuf = va;
   1575          1.181    bouyer #ifndef WD_DUMP_NOT_TRUSTED
   1576          1.217    bouyer 		switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) {
   1577          1.288   thorpej 		case ATACMD_TRY_AGAIN:
   1578          1.181    bouyer 			panic("wddump: try again");
   1579          1.181    bouyer 			break;
   1580          1.288   thorpej 		case ATACMD_QUEUED:
   1581          1.181    bouyer 			panic("wddump: polled command has been queued");
   1582          1.181    bouyer 			break;
   1583          1.288   thorpej 		case ATACMD_COMPLETE:
   1584          1.181    bouyer 			break;
   1585          1.116   mycroft 		}
   1586          1.181    bouyer 		switch(wd->sc_wdc_bio.error) {
   1587          1.181    bouyer 		case TIMEOUT:
   1588          1.181    bouyer 			printf("wddump: device timed out");
   1589          1.181    bouyer 			err = EIO;
   1590          1.181    bouyer 			break;
   1591          1.181    bouyer 		case ERR_DF:
   1592          1.181    bouyer 			printf("wddump: drive fault");
   1593          1.181    bouyer 			err = EIO;
   1594          1.181    bouyer 			break;
   1595          1.181    bouyer 		case ERR_DMA:
   1596          1.181    bouyer 			printf("wddump: DMA error");
   1597          1.181    bouyer 			err = EIO;
   1598          1.181    bouyer 			break;
   1599          1.181    bouyer 		case ERROR:
   1600          1.221      yamt 			printf("wddump: ");
   1601          1.222      yamt 			wdperror(wd);
   1602          1.181    bouyer 			err = EIO;
   1603          1.181    bouyer 			break;
   1604          1.259       dsl 		case NOERROR:
   1605          1.181    bouyer 			err = 0;
   1606          1.181    bouyer 			break;
   1607          1.181    bouyer 		default:
   1608          1.181    bouyer 			panic("wddump: unknown error type");
   1609            1.3   deraadt 		}
   1610          1.181    bouyer 		if (err != 0) {
   1611          1.181    bouyer 			printf("\n");
   1612          1.181    bouyer 			return err;
   1613           1.63   mycroft 		}
   1614          1.140       cgd #else	/* WD_DUMP_NOT_TRUSTED */
   1615          1.140       cgd 		/* Let's just talk about this first... */
   1616          1.153  christos 		printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n",
   1617          1.140       cgd 		    unit, va, cylin, head, sector);
   1618          1.140       cgd 		delay(500 * 1000);	/* half a second */
   1619          1.140       cgd #endif
   1620            1.1       cgd 
   1621          1.140       cgd 		/* update block count */
   1622          1.181    bouyer 		nblks -= min(nblks, wddumpmulti);
   1623          1.181    bouyer 		blkno += min(nblks, wddumpmulti);
   1624          1.181    bouyer 		va += min(nblks, wddumpmulti) * lp->d_secsize;
   1625            1.1       cgd 	}
   1626          1.142   mycroft 
   1627          1.140       cgd 	wddoingadump = 0;
   1628          1.140       cgd 	return 0;
   1629          1.140       cgd }
   1630            1.3   deraadt 
   1631          1.170       leo #ifdef HAS_BAD144_HANDLING
   1632            1.3   deraadt /*
   1633            1.3   deraadt  * Internalize the bad sector table.
   1634            1.3   deraadt  */
   1635            1.3   deraadt void
   1636          1.259       dsl bad144intern(struct wd_softc *wd)
   1637            1.3   deraadt {
   1638          1.144   thorpej 	struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad;
   1639          1.144   thorpej 	struct disklabel *lp = wd->sc_dk.dk_label;
   1640           1.98   mycroft 	int i = 0;
   1641           1.55   mycroft 
   1642          1.289   thorpej 	ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS);
   1643          1.163    bouyer 
   1644          1.170       leo 	for (; i < NBT_BAD; i++) {
   1645           1.98   mycroft 		if (bt->bt_bad[i].bt_cyl == 0xffff)
   1646           1.55   mycroft 			break;
   1647          1.181    bouyer 		wd->sc_badsect[i] =
   1648           1.98   mycroft 		    bt->bt_bad[i].bt_cyl * lp->d_secpercyl +
   1649           1.98   mycroft 		    (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors +
   1650           1.98   mycroft 		    (bt->bt_bad[i].bt_trksec & 0xff);
   1651            1.3   deraadt 	}
   1652          1.170       leo 	for (; i < NBT_BAD+1; i++)
   1653          1.181    bouyer 		wd->sc_badsect[i] = -1;
   1654           1.64   mycroft }
   1655          1.170       leo #endif
   1656           1.64   mycroft 
   1657          1.181    bouyer int
   1658          1.259       dsl wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params)
   1659           1.63   mycroft {
   1660          1.217    bouyer 	switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) {
   1661          1.181    bouyer 	case CMD_AGAIN:
   1662          1.181    bouyer 		return 1;
   1663          1.181    bouyer 	case CMD_ERR:
   1664          1.181    bouyer 		/*
   1665          1.181    bouyer 		 * We `know' there's a drive here; just assume it's old.
   1666          1.181    bouyer 		 * This geometry is only used to read the MBR and print a
   1667          1.181    bouyer 		 * (false) attach message.
   1668          1.181    bouyer 		 */
   1669          1.181    bouyer 		strncpy(params->atap_model, "ST506",
   1670          1.181    bouyer 		    sizeof params->atap_model);
   1671          1.181    bouyer 		params->atap_config = ATA_CFG_FIXED;
   1672          1.181    bouyer 		params->atap_cylinders = 1024;
   1673          1.181    bouyer 		params->atap_heads = 8;
   1674          1.181    bouyer 		params->atap_sectors = 17;
   1675          1.181    bouyer 		params->atap_multi = 1;
   1676          1.181    bouyer 		params->atap_capabilities1 = params->atap_capabilities2 = 0;
   1677          1.190    bouyer 		wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */
   1678          1.181    bouyer 		return 0;
   1679          1.181    bouyer 	case CMD_OK:
   1680          1.181    bouyer 		return 0;
   1681          1.181    bouyer 	default:
   1682          1.181    bouyer 		panic("wd_get_params: bad return code from ata_get_params");
   1683          1.181    bouyer 		/* NOTREACHED */
   1684          1.181    bouyer 	}
   1685          1.248    bouyer }
   1686          1.248    bouyer 
   1687          1.248    bouyer int
   1688          1.259       dsl wd_getcache(struct wd_softc *wd, int *bitsp)
   1689          1.248    bouyer {
   1690          1.248    bouyer 	struct ataparams params;
   1691          1.248    bouyer 
   1692          1.248    bouyer 	if (wd_get_params(wd, AT_WAIT, &params) != 0)
   1693          1.248    bouyer 		return EIO;
   1694          1.248    bouyer 	if (params.atap_cmd_set1 == 0x0000 ||
   1695          1.248    bouyer 	    params.atap_cmd_set1 == 0xffff ||
   1696          1.248    bouyer 	    (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) {
   1697          1.248    bouyer 		*bitsp = 0;
   1698          1.248    bouyer 		return 0;
   1699          1.248    bouyer 	}
   1700          1.248    bouyer 	*bitsp = DKCACHE_WCHANGE | DKCACHE_READ;
   1701          1.248    bouyer 	if (params.atap_cmd1_en & WDC_CMD1_CACHE)
   1702          1.248    bouyer 		*bitsp |= DKCACHE_WRITE;
   1703          1.248    bouyer 
   1704          1.248    bouyer 	return 0;
   1705          1.248    bouyer }
   1706          1.248    bouyer 
   1707          1.286   mycroft const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF";
   1708          1.286   mycroft 
   1709          1.248    bouyer int
   1710          1.259       dsl wd_setcache(struct wd_softc *wd, int bits)
   1711          1.248    bouyer {
   1712          1.248    bouyer 	struct ataparams params;
   1713          1.287   thorpej 	struct ata_command ata_c;
   1714          1.248    bouyer 
   1715          1.248    bouyer 	if (wd_get_params(wd, AT_WAIT, &params) != 0)
   1716          1.248    bouyer 		return EIO;
   1717          1.248    bouyer 
   1718          1.248    bouyer 	if (params.atap_cmd_set1 == 0x0000 ||
   1719          1.250    bouyer 	    params.atap_cmd_set1 == 0xffff ||
   1720          1.248    bouyer 	    (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0)
   1721          1.248    bouyer 		return EOPNOTSUPP;
   1722          1.248    bouyer 
   1723          1.249    bouyer 	if ((bits & DKCACHE_READ) == 0 ||
   1724          1.249    bouyer 	    (bits & DKCACHE_SAVE) != 0)
   1725          1.248    bouyer 		return EOPNOTSUPP;
   1726          1.248    bouyer 
   1727          1.287   thorpej 	memset(&ata_c, 0, sizeof(struct ata_command));
   1728          1.287   thorpej 	ata_c.r_command = SET_FEATURES;
   1729          1.287   thorpej 	ata_c.r_st_bmask = 0;
   1730          1.287   thorpej 	ata_c.r_st_pmask = 0;
   1731          1.287   thorpej 	ata_c.timeout = 30000; /* 30s timeout */
   1732          1.287   thorpej 	ata_c.flags = AT_WAIT;
   1733          1.248    bouyer 	if (bits & DKCACHE_WRITE)
   1734          1.287   thorpej 		ata_c.r_features = WDSF_WRITE_CACHE_EN;
   1735          1.248    bouyer 	else
   1736          1.287   thorpej 		ata_c.r_features = WDSF_WRITE_CACHE_DS;
   1737          1.288   thorpej 	if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) {
   1738          1.248    bouyer 		printf("%s: wd_setcache command not complete\n",
   1739          1.248    bouyer 		    wd->sc_dev.dv_xname);
   1740          1.248    bouyer 		return EIO;
   1741          1.248    bouyer 	}
   1742          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   1743          1.286   mycroft 		char sbuf[sizeof(at_errbits) + 64];
   1744          1.287   thorpej 		bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf));
   1745          1.286   mycroft 		printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname,
   1746          1.286   mycroft 		    sbuf);
   1747          1.286   mycroft 		return EIO;
   1748          1.286   mycroft 	}
   1749          1.286   mycroft 	return 0;
   1750          1.286   mycroft }
   1751          1.286   mycroft 
   1752          1.286   mycroft int
   1753          1.286   mycroft wd_standby(struct wd_softc *wd, int flags)
   1754          1.286   mycroft {
   1755          1.287   thorpej 	struct ata_command ata_c;
   1756          1.286   mycroft 
   1757          1.287   thorpej 	memset(&ata_c, 0, sizeof(struct ata_command));
   1758          1.287   thorpej 	ata_c.r_command = WDCC_STANDBY_IMMED;
   1759          1.287   thorpej 	ata_c.r_st_bmask = WDCS_DRDY;
   1760          1.287   thorpej 	ata_c.r_st_pmask = WDCS_DRDY;
   1761          1.287   thorpej 	ata_c.flags = flags;
   1762          1.287   thorpej 	ata_c.timeout = 30000; /* 30s timeout */
   1763          1.288   thorpej 	if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) {
   1764          1.286   mycroft 		printf("%s: standby immediate command didn't complete\n",
   1765          1.286   mycroft 		    wd->sc_dev.dv_xname);
   1766          1.286   mycroft 		return EIO;
   1767          1.286   mycroft 	}
   1768          1.287   thorpej 	if (ata_c.flags & AT_ERROR) {
   1769          1.287   thorpej 		if (ata_c.r_error == WDCE_ABRT) /* command not supported */
   1770          1.286   mycroft 			return ENODEV;
   1771          1.286   mycroft 	}
   1772          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   1773          1.286   mycroft 		char sbuf[sizeof(at_errbits) + 64];
   1774          1.287   thorpej 		bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf));
   1775          1.286   mycroft 		printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname,
   1776          1.286   mycroft 		    sbuf);
   1777          1.248    bouyer 		return EIO;
   1778          1.248    bouyer 	}
   1779          1.248    bouyer 	return 0;
   1780          1.190    bouyer }
   1781          1.190    bouyer 
   1782          1.276    bouyer int
   1783          1.259       dsl wd_flushcache(struct wd_softc *wd, int flags)
   1784          1.190    bouyer {
   1785          1.287   thorpej 	struct ata_command ata_c;
   1786          1.190    bouyer 
   1787          1.297    bouyer 	/*
   1788          1.297    bouyer 	 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report
   1789          1.297    bouyer 	 * only ATA-2 and still support it.
   1790          1.297    bouyer 	 */
   1791          1.297    bouyer 	if (wd->drvp->ata_vers < 4 &&
   1792          1.297    bouyer 	    ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 ||
   1793          1.297    bouyer 	    wd->sc_params.atap_cmd_set2 == 0xffff))
   1794          1.276    bouyer 		return ENODEV;
   1795          1.287   thorpej 	memset(&ata_c, 0, sizeof(struct ata_command));
   1796          1.275    bouyer 	if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 &&
   1797          1.275    bouyer 	    (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0)
   1798          1.287   thorpej 		ata_c.r_command = WDCC_FLUSHCACHE_EXT;
   1799          1.275    bouyer 	else
   1800          1.287   thorpej 		ata_c.r_command = WDCC_FLUSHCACHE;
   1801          1.287   thorpej 	ata_c.r_st_bmask = WDCS_DRDY;
   1802          1.287   thorpej 	ata_c.r_st_pmask = WDCS_DRDY;
   1803          1.287   thorpej 	ata_c.flags = flags;
   1804          1.287   thorpej 	ata_c.timeout = 30000; /* 30s timeout */
   1805          1.288   thorpej 	if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) {
   1806          1.190    bouyer 		printf("%s: flush cache command didn't complete\n",
   1807          1.190    bouyer 		    wd->sc_dev.dv_xname);
   1808          1.276    bouyer 		return EIO;
   1809          1.190    bouyer 	}
   1810          1.287   thorpej 	if (ata_c.flags & AT_ERROR) {
   1811          1.287   thorpej 		if (ata_c.r_error == WDCE_ABRT) /* command not supported */
   1812          1.276    bouyer 			return ENODEV;
   1813          1.190    bouyer 	}
   1814          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   1815          1.286   mycroft 		char sbuf[sizeof(at_errbits) + 64];
   1816          1.287   thorpej 		bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf));
   1817          1.286   mycroft 		printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname,
   1818          1.286   mycroft 		    sbuf);
   1819          1.276    bouyer 		return EIO;
   1820          1.190    bouyer 	}
   1821          1.276    bouyer 	return 0;
   1822          1.190    bouyer }
   1823          1.190    bouyer 
   1824          1.190    bouyer void
   1825          1.259       dsl wd_shutdown(void *arg)
   1826          1.190    bouyer {
   1827          1.190    bouyer 	struct wd_softc *wd = arg;
   1828          1.194    bouyer 	wd_flushcache(wd, AT_POLL);
   1829          1.185      kenh }
   1830          1.185      kenh 
   1831          1.185      kenh /*
   1832          1.185      kenh  * Allocate space for a ioctl queue structure.  Mostly taken from
   1833          1.185      kenh  * scsipi_ioctl.c
   1834          1.185      kenh  */
   1835          1.185      kenh struct wd_ioctl *
   1836          1.259       dsl wi_get(void)
   1837          1.185      kenh {
   1838          1.185      kenh 	struct wd_ioctl *wi;
   1839          1.185      kenh 	int s;
   1840          1.185      kenh 
   1841          1.219   tsutsui 	wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO);
   1842          1.238      yamt 	simple_lock_init(&wi->wi_bp.b_interlock);
   1843          1.185      kenh 	s = splbio();
   1844          1.185      kenh 	LIST_INSERT_HEAD(&wi_head, wi, wi_list);
   1845          1.185      kenh 	splx(s);
   1846          1.185      kenh 	return (wi);
   1847          1.185      kenh }
   1848          1.185      kenh 
   1849          1.185      kenh /*
   1850          1.185      kenh  * Free an ioctl structure and remove it from our list
   1851          1.185      kenh  */
   1852          1.185      kenh 
   1853          1.185      kenh void
   1854          1.259       dsl wi_free(struct wd_ioctl *wi)
   1855          1.185      kenh {
   1856          1.185      kenh 	int s;
   1857          1.185      kenh 
   1858          1.185      kenh 	s = splbio();
   1859          1.185      kenh 	LIST_REMOVE(wi, wi_list);
   1860          1.185      kenh 	splx(s);
   1861          1.185      kenh 	free(wi, M_TEMP);
   1862          1.185      kenh }
   1863          1.185      kenh 
   1864          1.185      kenh /*
   1865          1.185      kenh  * Find a wd_ioctl structure based on the struct buf.
   1866          1.185      kenh  */
   1867          1.185      kenh 
   1868          1.185      kenh struct wd_ioctl *
   1869          1.259       dsl wi_find(struct buf *bp)
   1870          1.185      kenh {
   1871          1.185      kenh 	struct wd_ioctl *wi;
   1872          1.185      kenh 	int s;
   1873          1.185      kenh 
   1874          1.185      kenh 	s = splbio();
   1875          1.185      kenh 	for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next)
   1876          1.185      kenh 		if (bp == &wi->wi_bp)
   1877          1.185      kenh 			break;
   1878          1.185      kenh 	splx(s);
   1879          1.185      kenh 	return (wi);
   1880          1.185      kenh }
   1881          1.185      kenh 
   1882          1.185      kenh /*
   1883          1.185      kenh  * Ioctl pseudo strategy routine
   1884          1.185      kenh  *
   1885          1.185      kenh  * This is mostly stolen from scsipi_ioctl.c:scsistrategy().  What
   1886          1.185      kenh  * happens here is:
   1887          1.185      kenh  *
   1888          1.185      kenh  * - wdioctl() queues a wd_ioctl structure.
   1889          1.185      kenh  *
   1890          1.185      kenh  * - wdioctl() calls physio/wdioctlstrategy based on whether or not
   1891          1.185      kenh  *   user space I/O is required.  If physio() is called, physio() eventually
   1892          1.185      kenh  *   calls wdioctlstrategy().
   1893          1.185      kenh  *
   1894          1.217    bouyer  * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command()
   1895          1.185      kenh  *   to perform the actual command
   1896          1.185      kenh  *
   1897          1.185      kenh  * The reason for the use of the pseudo strategy routine is because
   1898          1.185      kenh  * when doing I/O to/from user space, physio _really_ wants to be in
   1899          1.185      kenh  * the loop.  We could put the entire buffer into the ioctl request
   1900          1.185      kenh  * structure, but that won't scale if we want to do things like download
   1901          1.185      kenh  * microcode.
   1902          1.185      kenh  */
   1903          1.185      kenh 
   1904          1.185      kenh void
   1905          1.259       dsl wdioctlstrategy(struct buf *bp)
   1906          1.185      kenh {
   1907          1.185      kenh 	struct wd_ioctl *wi;
   1908          1.287   thorpej 	struct ata_command ata_c;
   1909          1.185      kenh 	int error = 0;
   1910          1.185      kenh 
   1911          1.185      kenh 	wi = wi_find(bp);
   1912          1.185      kenh 	if (wi == NULL) {
   1913          1.185      kenh 		printf("user_strat: No ioctl\n");
   1914          1.185      kenh 		error = EINVAL;
   1915          1.185      kenh 		goto bad;
   1916          1.185      kenh 	}
   1917          1.185      kenh 
   1918          1.287   thorpej 	memset(&ata_c, 0, sizeof(ata_c));
   1919          1.185      kenh 
   1920          1.185      kenh 	/*
   1921          1.185      kenh 	 * Abort if physio broke up the transfer
   1922          1.185      kenh 	 */
   1923          1.185      kenh 
   1924          1.186      kenh 	if (bp->b_bcount != wi->wi_atareq.datalen) {
   1925          1.185      kenh 		printf("physio split wd ioctl request... cannot proceed\n");
   1926          1.185      kenh 		error = EIO;
   1927          1.185      kenh 		goto bad;
   1928          1.185      kenh 	}
   1929          1.185      kenh 
   1930          1.185      kenh 	/*
   1931          1.185      kenh 	 * Abort if we didn't get a buffer size that was a multiple of
   1932          1.185      kenh 	 * our sector size (or was larger than NBBY)
   1933          1.185      kenh 	 */
   1934          1.185      kenh 
   1935          1.185      kenh 	if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 ||
   1936          1.185      kenh 	    (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >=
   1937          1.185      kenh 	     (1 << NBBY)) {
   1938          1.185      kenh 		error = EINVAL;
   1939          1.185      kenh 		goto bad;
   1940          1.185      kenh 	}
   1941          1.185      kenh 
   1942          1.185      kenh 	/*
   1943          1.185      kenh 	 * Make sure a timeout was supplied in the ioctl request
   1944          1.185      kenh 	 */
   1945          1.185      kenh 
   1946          1.186      kenh 	if (wi->wi_atareq.timeout == 0) {
   1947          1.185      kenh 		error = EINVAL;
   1948          1.185      kenh 		goto bad;
   1949          1.185      kenh 	}
   1950          1.185      kenh 
   1951          1.186      kenh 	if (wi->wi_atareq.flags & ATACMD_READ)
   1952          1.287   thorpej 		ata_c.flags |= AT_READ;
   1953          1.186      kenh 	else if (wi->wi_atareq.flags & ATACMD_WRITE)
   1954          1.287   thorpej 		ata_c.flags |= AT_WRITE;
   1955          1.185      kenh 
   1956          1.188      kenh 	if (wi->wi_atareq.flags & ATACMD_READREG)
   1957          1.287   thorpej 		ata_c.flags |= AT_READREG;
   1958          1.188      kenh 
   1959          1.287   thorpej 	ata_c.flags |= AT_WAIT;
   1960          1.185      kenh 
   1961          1.287   thorpej 	ata_c.timeout = wi->wi_atareq.timeout;
   1962          1.287   thorpej 	ata_c.r_command = wi->wi_atareq.command;
   1963          1.287   thorpej 	ata_c.r_head = wi->wi_atareq.head & 0x0f;
   1964          1.287   thorpej 	ata_c.r_cyl = wi->wi_atareq.cylinder;
   1965          1.287   thorpej 	ata_c.r_sector = wi->wi_atareq.sec_num;
   1966          1.287   thorpej 	ata_c.r_count = wi->wi_atareq.sec_count;
   1967          1.287   thorpej 	ata_c.r_features = wi->wi_atareq.features;
   1968          1.287   thorpej 	ata_c.r_st_bmask = WDCS_DRDY;
   1969          1.287   thorpej 	ata_c.r_st_pmask = WDCS_DRDY;
   1970          1.287   thorpej 	ata_c.data = wi->wi_bp.b_data;
   1971          1.287   thorpej 	ata_c.bcount = wi->wi_bp.b_bcount;
   1972          1.185      kenh 
   1973          1.287   thorpej 	if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c)
   1974          1.288   thorpej 	    != ATACMD_COMPLETE) {
   1975          1.186      kenh 		wi->wi_atareq.retsts = ATACMD_ERROR;
   1976          1.185      kenh 		goto bad;
   1977          1.185      kenh 	}
   1978          1.185      kenh 
   1979          1.287   thorpej 	if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
   1980          1.287   thorpej 		if (ata_c.flags & AT_ERROR) {
   1981          1.186      kenh 			wi->wi_atareq.retsts = ATACMD_ERROR;
   1982          1.287   thorpej 			wi->wi_atareq.error = ata_c.r_error;
   1983          1.287   thorpej 		} else if (ata_c.flags & AT_DF)
   1984          1.186      kenh 			wi->wi_atareq.retsts = ATACMD_DF;
   1985          1.185      kenh 		else
   1986          1.186      kenh 			wi->wi_atareq.retsts = ATACMD_TIMEOUT;
   1987          1.188      kenh 	} else {
   1988          1.186      kenh 		wi->wi_atareq.retsts = ATACMD_OK;
   1989          1.188      kenh 		if (wi->wi_atareq.flags & ATACMD_READREG) {
   1990          1.287   thorpej 			wi->wi_atareq.head = ata_c.r_head ;
   1991          1.287   thorpej 			wi->wi_atareq.cylinder = ata_c.r_cyl;
   1992          1.287   thorpej 			wi->wi_atareq.sec_num = ata_c.r_sector;
   1993          1.287   thorpej 			wi->wi_atareq.sec_count = ata_c.r_count;
   1994          1.287   thorpej 			wi->wi_atareq.features = ata_c.r_features;
   1995          1.287   thorpej 			wi->wi_atareq.error = ata_c.r_error;
   1996          1.188      kenh 		}
   1997          1.188      kenh 	}
   1998          1.185      kenh 
   1999          1.185      kenh 	bp->b_error = 0;
   2000          1.185      kenh 	biodone(bp);
   2001          1.185      kenh 	return;
   2002          1.185      kenh bad:
   2003          1.185      kenh 	bp->b_flags |= B_ERROR;
   2004          1.185      kenh 	bp->b_error = error;
   2005          1.185      kenh 	biodone(bp);
   2006           1.21   deraadt }
   2007