1573 lines
37 KiB
C
1573 lines
37 KiB
C
/* $NetBSD: wd.c,v 1.213 2001/05/06 18:30:57 drochner Exp $ */
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/*
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* Copyright (c) 1998 Manuel Bouyer. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Manuel Bouyer.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum and by Onno van der Linden.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef WDCDEBUG
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#define WDCDEBUG
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#endif /* WDCDEBUG */
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#include "rnd.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/conf.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/buf.h>
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#include <sys/uio.h>
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#include <sys/malloc.h>
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#include <sys/device.h>
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#include <sys/disklabel.h>
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#include <sys/disk.h>
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#include <sys/syslog.h>
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#include <sys/proc.h>
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#include <sys/vnode.h>
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#if NRND > 0
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#include <sys/rnd.h>
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#endif
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#include <machine/intr.h>
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#include <machine/bus.h>
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#include <dev/ata/atareg.h>
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#include <dev/ata/atavar.h>
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#include <dev/ata/wdvar.h>
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#include <dev/ic/wdcreg.h>
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#include <sys/ataio.h>
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#include "locators.h"
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#define WAITTIME (4 * hz) /* time to wait for a completion */
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#define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */
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#define WDIORETRIES 5 /* number of retries before giving up */
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#define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */
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#define WDUNIT(dev) DISKUNIT(dev)
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#define WDPART(dev) DISKPART(dev)
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#define WDMINOR(unit, part) DISKMINOR(unit, part)
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#define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part)
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#define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART))
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#define DEBUG_INTR 0x01
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#define DEBUG_XFERS 0x02
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#define DEBUG_STATUS 0x04
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#define DEBUG_FUNCS 0x08
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#define DEBUG_PROBE 0x10
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#ifdef WDCDEBUG
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extern int wdcdebug_wd_mask; /* init'ed in ata_wdc.c */
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#define WDCDEBUG_PRINT(args, level) \
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if (wdcdebug_wd_mask & (level)) \
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printf args
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#else
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#define WDCDEBUG_PRINT(args, level)
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#endif
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struct wd_softc {
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/* General disk infos */
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struct device sc_dev;
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struct disk sc_dk;
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struct buf_queue sc_q;
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struct callout sc_restart_ch;
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/* IDE disk soft states */
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struct ata_bio sc_wdc_bio; /* current transfer */
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struct buf *sc_bp; /* buf being transfered */
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void *wdc_softc; /* pointer to our parent */
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struct ata_drive_datas *drvp; /* Our controller's infos */
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int openings;
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struct ataparams sc_params;/* drive characteistics found */
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int sc_flags;
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#define WDF_LOCKED 0x01
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#define WDF_WANTED 0x02
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#define WDF_WLABEL 0x04 /* label is writable */
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#define WDF_LABELLING 0x08 /* writing label */
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/*
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* XXX Nothing resets this yet, but disk change sensing will when ATA-4 is
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* more fully implemented.
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*/
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#define WDF_LOADED 0x10 /* parameters loaded */
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#define WDF_WAIT 0x20 /* waiting for resources */
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#define WDF_LBA 0x40 /* using LBA mode */
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#define WDF_KLABEL 0x80 /* retain label after 'full' close */
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int sc_capacity;
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int cyl; /* actual drive parameters */
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int heads;
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int sectors;
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int retries; /* number of xfer retry */
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void *sc_sdhook; /* our shutdown hook */
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#if NRND > 0
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rndsource_element_t rnd_source;
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#endif
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};
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#define sc_drive sc_wdc_bio.drive
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#define sc_mode sc_wdc_bio.mode
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#define sc_multi sc_wdc_bio.multi
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#define sc_badsect sc_wdc_bio.badsect
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int wdprobe __P((struct device *, struct cfdata *, void *));
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void wdattach __P((struct device *, struct device *, void *));
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int wddetach __P((struct device *, int));
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int wdactivate __P((struct device *, enum devact));
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int wdprint __P((void *, char *));
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struct cfattach wd_ca = {
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sizeof(struct wd_softc), wdprobe, wdattach, wddetach, wdactivate
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};
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extern struct cfdriver wd_cd;
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/*
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* Glue necessary to hook WDCIOCCOMMAND into physio
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*/
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struct wd_ioctl {
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LIST_ENTRY(wd_ioctl) wi_list;
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struct buf wi_bp;
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struct uio wi_uio;
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struct iovec wi_iov;
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atareq_t wi_atareq;
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struct wd_softc *wi_softc;
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};
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LIST_HEAD(, wd_ioctl) wi_head;
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struct wd_ioctl *wi_find __P((struct buf *));
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void wi_free __P((struct wd_ioctl *));
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struct wd_ioctl *wi_get __P((void));
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void wdioctlstrategy __P((struct buf *));
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void wdgetdefaultlabel __P((struct wd_softc *, struct disklabel *));
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void wdgetdisklabel __P((struct wd_softc *));
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void wdstrategy __P((struct buf *));
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void wdstart __P((void *));
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void __wdstart __P((struct wd_softc*, struct buf *));
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void wdrestart __P((void*));
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int wd_get_params __P((struct wd_softc *, u_int8_t, struct ataparams *));
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void wd_flushcache __P((struct wd_softc *, int));
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void wd_shutdown __P((void*));
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struct dkdriver wddkdriver = { wdstrategy };
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/* XXX: these should go elsewhere */
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cdev_decl(wd);
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bdev_decl(wd);
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#ifdef HAS_BAD144_HANDLING
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static void bad144intern __P((struct wd_softc *));
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#endif
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int wdlock __P((struct wd_softc *));
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void wdunlock __P((struct wd_softc *));
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int
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wdprobe(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct ata_atapi_attach *aa_link = aux;
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if (aa_link == NULL)
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return 0;
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if (aa_link->aa_type != T_ATA)
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return 0;
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if (match->cf_loc[ATACF_CHANNEL] != ATACF_CHANNEL_DEFAULT &&
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match->cf_loc[ATACF_CHANNEL] != aa_link->aa_channel)
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return 0;
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if (match->cf_loc[ATACF_DRIVE] != ATACF_DRIVE_DEFAULT &&
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match->cf_loc[ATACF_DRIVE] != aa_link->aa_drv_data->drive)
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return 0;
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return 1;
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}
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void
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wdattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct wd_softc *wd = (void *)self;
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struct ata_atapi_attach *aa_link= aux;
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int i, blank;
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char buf[41], pbuf[9], c, *p, *q;
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WDCDEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE);
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callout_init(&wd->sc_restart_ch);
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BUFQ_INIT(&wd->sc_q);
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wd->openings = aa_link->aa_openings;
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wd->drvp = aa_link->aa_drv_data;;
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wd->wdc_softc = parent;
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/* give back our softc to our caller */
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wd->drvp->drv_softc = &wd->sc_dev;
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/* read our drive info */
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if (wd_get_params(wd, AT_POLL, &wd->sc_params) != 0) {
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printf("%s: IDENTIFY failed\n", wd->sc_dev.dv_xname);
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return;
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}
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for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0;
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i < sizeof(wd->sc_params.atap_model); i++) {
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c = *p++;
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if (c == '\0')
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break;
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if (c != ' ') {
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if (blank) {
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*q++ = ' ';
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blank = 0;
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}
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*q++ = c;
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} else
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blank = 1;
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}
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*q++ = '\0';
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printf(": <%s>\n", buf);
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if ((wd->sc_params.atap_multi & 0xff) > 1) {
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wd->sc_multi = wd->sc_params.atap_multi & 0xff;
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} else {
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wd->sc_multi = 1;
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}
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printf("%s: drive supports %d-sector PIO transfers,",
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wd->sc_dev.dv_xname, wd->sc_multi);
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/* Prior to ATA-4, LBA was optional. */
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if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0)
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wd->sc_flags |= WDF_LBA;
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#if 0
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/* ATA-4 requires LBA. */
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if (wd->sc_params.atap_ataversion != 0xffff &&
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wd->sc_params.atap_ataversion >= WDC_VER_ATA4)
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wd->sc_flags |= WDF_LBA;
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#endif
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if ((wd->sc_flags & WDF_LBA) != 0) {
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printf(" LBA addressing\n");
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wd->sc_capacity =
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(wd->sc_params.atap_capacity[1] << 16) |
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wd->sc_params.atap_capacity[0];
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} else {
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printf(" chs addressing\n");
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wd->sc_capacity =
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wd->sc_params.atap_cylinders *
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wd->sc_params.atap_heads *
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wd->sc_params.atap_sectors;
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}
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format_bytes(pbuf, sizeof(pbuf),
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(u_int64_t)wd->sc_capacity * DEV_BSIZE);
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printf("%s: %s, %d cyl, %d head, %d sec, "
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"%d bytes/sect x %d sectors\n",
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self->dv_xname, pbuf, wd->sc_params.atap_cylinders,
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wd->sc_params.atap_heads, wd->sc_params.atap_sectors,
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DEV_BSIZE, wd->sc_capacity);
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WDCDEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n",
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self->dv_xname, wd->sc_params.atap_dmatiming_mimi,
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wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE);
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/*
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* Initialize and attach the disk structure.
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*/
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wd->sc_dk.dk_driver = &wddkdriver;
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wd->sc_dk.dk_name = wd->sc_dev.dv_xname;
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disk_attach(&wd->sc_dk);
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wd->sc_wdc_bio.lp = wd->sc_dk.dk_label;
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wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd);
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if (wd->sc_sdhook == NULL)
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printf("%s: WARNING: unable to establish shutdown hook\n",
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wd->sc_dev.dv_xname);
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#if NRND > 0
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rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname,
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RND_TYPE_DISK, 0);
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#endif
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}
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int
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wdactivate(self, act)
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struct device *self;
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enum devact act;
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{
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int rv = 0;
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switch (act) {
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case DVACT_ACTIVATE:
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rv = EOPNOTSUPP;
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break;
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case DVACT_DEACTIVATE:
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/*
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* Nothing to do; we key off the device's DVF_ACTIVATE.
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*/
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break;
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}
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return (rv);
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}
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int
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wddetach(self, flags)
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struct device *self;
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int flags;
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{
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struct wd_softc *sc = (struct wd_softc *)self;
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struct buf *bp;
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int s, bmaj, cmaj, i, mn;
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/* locate the major number */
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for (bmaj = 0; bmaj < nblkdev; bmaj++)
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if (bdevsw[bmaj].d_open == wdopen)
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break;
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for (cmaj = 0; cmaj < nchrdev; cmaj++)
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if (cdevsw[cmaj].d_open == wdopen)
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break;
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s = splbio();
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/* Kill off any queued buffers. */
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while ((bp = BUFQ_FIRST(&sc->sc_q)) != NULL) {
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BUFQ_REMOVE(&sc->sc_q, bp);
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bp->b_error = EIO;
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bp->b_flags |= B_ERROR;
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bp->b_resid = bp->b_bcount;
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biodone(bp);
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}
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splx(s);
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/* Nuke the vnodes for any open instances. */
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for (i = 0; i < MAXPARTITIONS; i++) {
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mn = WDMINOR(self->dv_unit, i);
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vdevgone(bmaj, mn, mn, VBLK);
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vdevgone(cmaj, mn, mn, VCHR);
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}
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/* Detach disk. */
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disk_detach(&sc->sc_dk);
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/* Get rid of the shutdown hook. */
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if (sc->sc_sdhook != NULL)
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shutdownhook_disestablish(sc->sc_sdhook);
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#if NRND > 0
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/* Unhook the entropy source. */
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rnd_detach_source(&sc->rnd_source);
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#endif
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return (0);
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}
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|
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/*
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* Read/write routine for a buffer. Validates the arguments and schedules the
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* transfer. Does not wait for the transfer to complete.
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*/
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void
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wdstrategy(bp)
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struct buf *bp;
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{
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struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev));
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struct disklabel *lp = wd->sc_dk.dk_label;
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daddr_t blkno;
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int s;
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WDCDEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname),
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DEBUG_XFERS);
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|
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/* Valid request? */
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if (bp->b_blkno < 0 ||
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(bp->b_bcount % lp->d_secsize) != 0 ||
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(bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) {
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bp->b_error = EINVAL;
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goto bad;
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}
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/* If device invalidated (e.g. media change, door open), error. */
|
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if ((wd->sc_flags & WDF_LOADED) == 0) {
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bp->b_error = EIO;
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goto bad;
|
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}
|
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|
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/* If it's a null transfer, return immediately. */
|
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if (bp->b_bcount == 0)
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goto done;
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|
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/*
|
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* Do bounds checking, adjust transfer. if error, process.
|
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* If end of partition, just return.
|
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*/
|
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if (WDPART(bp->b_dev) != RAW_PART &&
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bounds_check_with_label(bp, wd->sc_dk.dk_label,
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(wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0)
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goto done;
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|
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/*
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* Now convert the block number to absolute and put it in
|
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* terms of the device's logical block size.
|
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*/
|
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if (lp->d_secsize >= DEV_BSIZE)
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blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE);
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else
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blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize);
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|
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if (WDPART(bp->b_dev) != RAW_PART)
|
|
blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset;
|
|
|
|
bp->b_rawblkno = blkno;
|
|
|
|
/* Queue transfer on drive, activate drive and controller if idle. */
|
|
s = splbio();
|
|
disksort_blkno(&wd->sc_q, bp);
|
|
wdstart(wd);
|
|
splx(s);
|
|
return;
|
|
bad:
|
|
bp->b_flags |= B_ERROR;
|
|
done:
|
|
/* Toss transfer; we're done early. */
|
|
bp->b_resid = bp->b_bcount;
|
|
biodone(bp);
|
|
}
|
|
|
|
/*
|
|
* Queue a drive for I/O.
|
|
*/
|
|
void
|
|
wdstart(arg)
|
|
void *arg;
|
|
{
|
|
struct wd_softc *wd = arg;
|
|
struct buf *bp = NULL;
|
|
|
|
WDCDEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname),
|
|
DEBUG_XFERS);
|
|
while (wd->openings > 0) {
|
|
|
|
/* Is there a buf for us ? */
|
|
if ((bp = BUFQ_FIRST(&wd->sc_q)) == NULL)
|
|
return;
|
|
BUFQ_REMOVE(&wd->sc_q, bp);
|
|
|
|
/*
|
|
* Make the command. First lock the device
|
|
*/
|
|
wd->openings--;
|
|
|
|
wd->retries = 0;
|
|
__wdstart(wd, bp);
|
|
}
|
|
}
|
|
|
|
void
|
|
__wdstart(wd, bp)
|
|
struct wd_softc *wd;
|
|
struct buf *bp;
|
|
{
|
|
|
|
wd->sc_wdc_bio.blkno = bp->b_rawblkno;
|
|
wd->sc_wdc_bio.blkdone =0;
|
|
wd->sc_bp = bp;
|
|
/*
|
|
* If we're retrying, retry in single-sector mode. This will give us
|
|
* the sector number of the problem, and will eventually allow the
|
|
* transfer to succeed.
|
|
*/
|
|
if (wd->sc_multi == 1 || wd->retries >= WDIORETRIES_SINGLE)
|
|
wd->sc_wdc_bio.flags = ATA_SINGLE;
|
|
else
|
|
wd->sc_wdc_bio.flags = 0;
|
|
if (wd->sc_flags & WDF_LBA)
|
|
wd->sc_wdc_bio.flags |= ATA_LBA;
|
|
if (bp->b_flags & B_READ)
|
|
wd->sc_wdc_bio.flags |= ATA_READ;
|
|
wd->sc_wdc_bio.bcount = bp->b_bcount;
|
|
wd->sc_wdc_bio.databuf = bp->b_data;
|
|
/* Instrumentation. */
|
|
disk_busy(&wd->sc_dk);
|
|
switch (wdc_ata_bio(wd->drvp, &wd->sc_wdc_bio)) {
|
|
case WDC_TRY_AGAIN:
|
|
callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd);
|
|
break;
|
|
case WDC_QUEUED:
|
|
case WDC_COMPLETE:
|
|
break;
|
|
default:
|
|
panic("__wdstart: bad return code from wdc_ata_bio()");
|
|
}
|
|
}
|
|
|
|
void
|
|
wddone(v)
|
|
void *v;
|
|
{
|
|
struct wd_softc *wd = v;
|
|
struct buf *bp = wd->sc_bp;
|
|
char buf[256], *errbuf = buf;
|
|
WDCDEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname),
|
|
DEBUG_XFERS);
|
|
|
|
bp->b_resid = wd->sc_wdc_bio.bcount;
|
|
errbuf[0] = '\0';
|
|
switch (wd->sc_wdc_bio.error) {
|
|
case ERR_DMA:
|
|
errbuf = "DMA error";
|
|
goto retry;
|
|
case ERR_DF:
|
|
errbuf = "device fault";
|
|
goto retry;
|
|
case TIMEOUT:
|
|
errbuf = "device timeout";
|
|
goto retry;
|
|
case ERROR:
|
|
/* Don't care about media change bits */
|
|
if (wd->sc_wdc_bio.r_error != 0 &&
|
|
(wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0)
|
|
goto noerror;
|
|
ata_perror(wd->drvp, wd->sc_wdc_bio.r_error, errbuf);
|
|
retry: /* Just reset and retry. Can we do more ? */
|
|
wdc_reset_channel(wd->drvp);
|
|
diskerr(bp, "wd", errbuf, LOG_PRINTF,
|
|
wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label);
|
|
if (wd->retries++ < WDIORETRIES) {
|
|
printf(", retrying\n");
|
|
callout_reset(&wd->sc_restart_ch, RECOVERYTIME,
|
|
wdrestart, wd);
|
|
return;
|
|
}
|
|
printf("\n");
|
|
bp->b_flags |= B_ERROR;
|
|
bp->b_error = EIO;
|
|
break;
|
|
case NOERROR:
|
|
noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0)
|
|
printf("%s: soft error (corrected)\n",
|
|
wd->sc_dev.dv_xname);
|
|
break;
|
|
case ERR_NODEV:
|
|
bp->b_flags |= B_ERROR;
|
|
bp->b_error = EIO;
|
|
break;
|
|
}
|
|
disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid));
|
|
#if NRND > 0
|
|
rnd_add_uint32(&wd->rnd_source, bp->b_blkno);
|
|
#endif
|
|
biodone(bp);
|
|
wd->openings++;
|
|
wdstart(wd);
|
|
}
|
|
|
|
void
|
|
wdrestart(v)
|
|
void *v;
|
|
{
|
|
struct wd_softc *wd = v;
|
|
struct buf *bp = wd->sc_bp;
|
|
int s;
|
|
WDCDEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname),
|
|
DEBUG_XFERS);
|
|
|
|
s = splbio();
|
|
__wdstart(v, bp);
|
|
splx(s);
|
|
}
|
|
|
|
int
|
|
wdread(dev, uio, flags)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int flags;
|
|
{
|
|
|
|
WDCDEBUG_PRINT(("wdread\n"), DEBUG_XFERS);
|
|
return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio));
|
|
}
|
|
|
|
int
|
|
wdwrite(dev, uio, flags)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int flags;
|
|
{
|
|
|
|
WDCDEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS);
|
|
return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio));
|
|
}
|
|
|
|
/*
|
|
* Wait interruptibly for an exclusive lock.
|
|
*
|
|
* XXX
|
|
* Several drivers do this; it should be abstracted and made MP-safe.
|
|
*/
|
|
int
|
|
wdlock(wd)
|
|
struct wd_softc *wd;
|
|
{
|
|
int error;
|
|
int s;
|
|
|
|
WDCDEBUG_PRINT(("wdlock\n"), DEBUG_FUNCS);
|
|
|
|
s = splbio();
|
|
|
|
while ((wd->sc_flags & WDF_LOCKED) != 0) {
|
|
wd->sc_flags |= WDF_WANTED;
|
|
if ((error = tsleep(wd, PRIBIO | PCATCH,
|
|
"wdlck", 0)) != 0) {
|
|
splx(s);
|
|
return error;
|
|
}
|
|
}
|
|
wd->sc_flags |= WDF_LOCKED;
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Unlock and wake up any waiters.
|
|
*/
|
|
void
|
|
wdunlock(wd)
|
|
struct wd_softc *wd;
|
|
{
|
|
|
|
WDCDEBUG_PRINT(("wdunlock\n"), DEBUG_FUNCS);
|
|
|
|
wd->sc_flags &= ~WDF_LOCKED;
|
|
if ((wd->sc_flags & WDF_WANTED) != 0) {
|
|
wd->sc_flags &= ~WDF_WANTED;
|
|
wakeup(wd);
|
|
}
|
|
}
|
|
|
|
int
|
|
wdopen(dev, flag, fmt, p)
|
|
dev_t dev;
|
|
int flag, fmt;
|
|
struct proc *p;
|
|
{
|
|
struct wd_softc *wd;
|
|
int part, error;
|
|
|
|
WDCDEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS);
|
|
wd = device_lookup(&wd_cd, WDUNIT(dev));
|
|
if (wd == NULL)
|
|
return (ENXIO);
|
|
|
|
/*
|
|
* If this is the first open of this device, add a reference
|
|
* to the adapter.
|
|
*/
|
|
if (wd->sc_dk.dk_openmask == 0 &&
|
|
(error = wdc_ata_addref(wd->drvp)) != 0)
|
|
return (error);
|
|
|
|
if ((error = wdlock(wd)) != 0)
|
|
goto bad4;
|
|
|
|
if (wd->sc_dk.dk_openmask != 0) {
|
|
/*
|
|
* If any partition is open, but the disk has been invalidated,
|
|
* disallow further opens.
|
|
*/
|
|
if ((wd->sc_flags & WDF_LOADED) == 0) {
|
|
error = EIO;
|
|
goto bad3;
|
|
}
|
|
} else {
|
|
if ((wd->sc_flags & WDF_LOADED) == 0) {
|
|
wd->sc_flags |= WDF_LOADED;
|
|
|
|
/* Load the physical device parameters. */
|
|
wd_get_params(wd, AT_WAIT, &wd->sc_params);
|
|
|
|
/* Load the partition info if not already loaded. */
|
|
wdgetdisklabel(wd);
|
|
}
|
|
}
|
|
|
|
part = WDPART(dev);
|
|
|
|
/* Check that the partition exists. */
|
|
if (part != RAW_PART &&
|
|
(part >= wd->sc_dk.dk_label->d_npartitions ||
|
|
wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) {
|
|
error = ENXIO;
|
|
goto bad;
|
|
}
|
|
|
|
/* Insure only one open at a time. */
|
|
switch (fmt) {
|
|
case S_IFCHR:
|
|
wd->sc_dk.dk_copenmask |= (1 << part);
|
|
break;
|
|
case S_IFBLK:
|
|
wd->sc_dk.dk_bopenmask |= (1 << part);
|
|
break;
|
|
}
|
|
wd->sc_dk.dk_openmask =
|
|
wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask;
|
|
|
|
wdunlock(wd);
|
|
return 0;
|
|
|
|
bad:
|
|
if (wd->sc_dk.dk_openmask == 0) {
|
|
}
|
|
|
|
bad3:
|
|
wdunlock(wd);
|
|
bad4:
|
|
if (wd->sc_dk.dk_openmask == 0)
|
|
wdc_ata_delref(wd->drvp);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
wdclose(dev, flag, fmt, p)
|
|
dev_t dev;
|
|
int flag, fmt;
|
|
struct proc *p;
|
|
{
|
|
struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev));
|
|
int part = WDPART(dev);
|
|
int error;
|
|
|
|
WDCDEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS);
|
|
if ((error = wdlock(wd)) != 0)
|
|
return error;
|
|
|
|
switch (fmt) {
|
|
case S_IFCHR:
|
|
wd->sc_dk.dk_copenmask &= ~(1 << part);
|
|
break;
|
|
case S_IFBLK:
|
|
wd->sc_dk.dk_bopenmask &= ~(1 << part);
|
|
break;
|
|
}
|
|
wd->sc_dk.dk_openmask =
|
|
wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask;
|
|
|
|
if (wd->sc_dk.dk_openmask == 0) {
|
|
wd_flushcache(wd, AT_WAIT);
|
|
/* XXXX Must wait for I/O to complete! */
|
|
|
|
if (! (wd->sc_flags & WDF_KLABEL))
|
|
wd->sc_flags &= ~WDF_LOADED;
|
|
|
|
wdc_ata_delref(wd->drvp);
|
|
}
|
|
|
|
wdunlock(wd);
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
wdgetdefaultlabel(wd, lp)
|
|
struct wd_softc *wd;
|
|
struct disklabel *lp;
|
|
{
|
|
|
|
WDCDEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS);
|
|
memset(lp, 0, sizeof(struct disklabel));
|
|
|
|
lp->d_secsize = DEV_BSIZE;
|
|
lp->d_ntracks = wd->sc_params.atap_heads;
|
|
lp->d_nsectors = wd->sc_params.atap_sectors;
|
|
lp->d_ncylinders = wd->sc_params.atap_cylinders;
|
|
lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors;
|
|
|
|
if (strcmp(wd->sc_params.atap_model, "ST506") == 0)
|
|
lp->d_type = DTYPE_ST506;
|
|
else
|
|
lp->d_type = DTYPE_ESDI;
|
|
|
|
strncpy(lp->d_typename, wd->sc_params.atap_model, 16);
|
|
strncpy(lp->d_packname, "fictitious", 16);
|
|
lp->d_secperunit = wd->sc_capacity;
|
|
lp->d_rpm = 3600;
|
|
lp->d_interleave = 1;
|
|
lp->d_flags = 0;
|
|
|
|
lp->d_partitions[RAW_PART].p_offset = 0;
|
|
lp->d_partitions[RAW_PART].p_size =
|
|
lp->d_secperunit * (lp->d_secsize / DEV_BSIZE);
|
|
lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED;
|
|
lp->d_npartitions = RAW_PART + 1;
|
|
|
|
lp->d_magic = DISKMAGIC;
|
|
lp->d_magic2 = DISKMAGIC;
|
|
lp->d_checksum = dkcksum(lp);
|
|
}
|
|
|
|
/*
|
|
* Fabricate a default disk label, and try to read the correct one.
|
|
*/
|
|
void
|
|
wdgetdisklabel(wd)
|
|
struct wd_softc *wd;
|
|
{
|
|
struct disklabel *lp = wd->sc_dk.dk_label;
|
|
char *errstring;
|
|
|
|
WDCDEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS);
|
|
|
|
memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel));
|
|
|
|
wdgetdefaultlabel(wd, lp);
|
|
|
|
wd->sc_badsect[0] = -1;
|
|
|
|
if (wd->drvp->state > RECAL)
|
|
wd->drvp->drive_flags |= DRIVE_RESET;
|
|
errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART),
|
|
wdstrategy, lp, wd->sc_dk.dk_cpulabel);
|
|
if (errstring) {
|
|
/*
|
|
* This probably happened because the drive's default
|
|
* geometry doesn't match the DOS geometry. We
|
|
* assume the DOS geometry is now in the label and try
|
|
* again. XXX This is a kluge.
|
|
*/
|
|
if (wd->drvp->state > RECAL)
|
|
wd->drvp->drive_flags |= DRIVE_RESET;
|
|
errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit,
|
|
RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel);
|
|
}
|
|
if (errstring) {
|
|
printf("%s: %s\n", wd->sc_dev.dv_xname, errstring);
|
|
return;
|
|
}
|
|
|
|
if (wd->drvp->state > RECAL)
|
|
wd->drvp->drive_flags |= DRIVE_RESET;
|
|
#ifdef HAS_BAD144_HANDLING
|
|
if ((lp->d_flags & D_BADSECT) != 0)
|
|
bad144intern(wd);
|
|
#endif
|
|
}
|
|
|
|
int
|
|
wdioctl(dev, xfer, addr, flag, p)
|
|
dev_t dev;
|
|
u_long xfer;
|
|
caddr_t addr;
|
|
int flag;
|
|
struct proc *p;
|
|
{
|
|
struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev));
|
|
int error;
|
|
#ifdef __HAVE_OLD_DISKLABEL
|
|
struct disklabel newlabel;
|
|
#endif
|
|
|
|
WDCDEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS);
|
|
|
|
if ((wd->sc_flags & WDF_LOADED) == 0)
|
|
return EIO;
|
|
|
|
switch (xfer) {
|
|
#ifdef HAS_BAD144_HANDLING
|
|
case DIOCSBAD:
|
|
if ((flag & FWRITE) == 0)
|
|
return EBADF;
|
|
wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr;
|
|
wd->sc_dk.dk_label->d_flags |= D_BADSECT;
|
|
bad144intern(wd);
|
|
return 0;
|
|
#endif
|
|
|
|
case DIOCGDINFO:
|
|
*(struct disklabel *)addr = *(wd->sc_dk.dk_label);
|
|
return 0;
|
|
#ifdef __HAVE_OLD_DISKLABEL
|
|
case ODIOCGDINFO:
|
|
newlabel = *(wd->sc_dk.dk_label);
|
|
if (newlabel.d_npartitions > OLDMAXPARTITIONS)
|
|
return ENOTTY;
|
|
memcpy(addr, &newlabel, sizeof (struct olddisklabel));
|
|
return 0;
|
|
#endif
|
|
|
|
case DIOCGPART:
|
|
((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label;
|
|
((struct partinfo *)addr)->part =
|
|
&wd->sc_dk.dk_label->d_partitions[WDPART(dev)];
|
|
return 0;
|
|
|
|
case DIOCWDINFO:
|
|
case DIOCSDINFO:
|
|
#ifdef __HAVE_OLD_DISKLABEL
|
|
case ODIOCWDINFO:
|
|
case ODIOCSDINFO:
|
|
#endif
|
|
{
|
|
struct disklabel *lp;
|
|
|
|
#ifdef __HAVE_OLD_DISKLABEL
|
|
if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) {
|
|
memset(&newlabel, 0, sizeof newlabel);
|
|
memcpy(&newlabel, addr, sizeof (struct olddisklabel));
|
|
lp = &newlabel;
|
|
} else
|
|
#endif
|
|
lp = (struct disklabel *)addr;
|
|
|
|
if ((flag & FWRITE) == 0)
|
|
return EBADF;
|
|
|
|
if ((error = wdlock(wd)) != 0)
|
|
return error;
|
|
wd->sc_flags |= WDF_LABELLING;
|
|
|
|
error = setdisklabel(wd->sc_dk.dk_label,
|
|
lp, /*wd->sc_dk.dk_openmask : */0,
|
|
wd->sc_dk.dk_cpulabel);
|
|
if (error == 0) {
|
|
if (wd->drvp->state > RECAL)
|
|
wd->drvp->drive_flags |= DRIVE_RESET;
|
|
if (xfer == DIOCWDINFO
|
|
#ifdef __HAVE_OLD_DISKLABEL
|
|
|| xfer == ODIOCWDINFO
|
|
#endif
|
|
)
|
|
error = writedisklabel(WDLABELDEV(dev),
|
|
wdstrategy, wd->sc_dk.dk_label,
|
|
wd->sc_dk.dk_cpulabel);
|
|
}
|
|
|
|
wd->sc_flags &= ~WDF_LABELLING;
|
|
wdunlock(wd);
|
|
return error;
|
|
}
|
|
|
|
case DIOCKLABEL:
|
|
if (*(int *)addr)
|
|
wd->sc_flags |= WDF_KLABEL;
|
|
else
|
|
wd->sc_flags &= ~WDF_KLABEL;
|
|
return 0;
|
|
|
|
case DIOCWLABEL:
|
|
if ((flag & FWRITE) == 0)
|
|
return EBADF;
|
|
if (*(int *)addr)
|
|
wd->sc_flags |= WDF_WLABEL;
|
|
else
|
|
wd->sc_flags &= ~WDF_WLABEL;
|
|
return 0;
|
|
|
|
case DIOCGDEFLABEL:
|
|
wdgetdefaultlabel(wd, (struct disklabel *)addr);
|
|
return 0;
|
|
#ifdef __HAVE_OLD_DISKLABEL
|
|
case ODIOCGDEFLABEL:
|
|
wdgetdefaultlabel(wd, &newlabel);
|
|
if (newlabel.d_npartitions > OLDMAXPARTITIONS)
|
|
return ENOTTY;
|
|
memcpy(addr, &newlabel, sizeof (struct olddisklabel));
|
|
return 0;
|
|
#endif
|
|
|
|
#ifdef notyet
|
|
case DIOCWFORMAT:
|
|
if ((flag & FWRITE) == 0)
|
|
return EBADF;
|
|
{
|
|
register struct format_op *fop;
|
|
struct iovec aiov;
|
|
struct uio auio;
|
|
|
|
fop = (struct format_op *)addr;
|
|
aiov.iov_base = fop->df_buf;
|
|
aiov.iov_len = fop->df_count;
|
|
auio.uio_iov = &aiov;
|
|
auio.uio_iovcnt = 1;
|
|
auio.uio_resid = fop->df_count;
|
|
auio.uio_segflg = 0;
|
|
auio.uio_offset =
|
|
fop->df_startblk * wd->sc_dk.dk_label->d_secsize;
|
|
auio.uio_procp = p;
|
|
error = physio(wdformat, NULL, dev, B_WRITE, minphys,
|
|
&auio);
|
|
fop->df_count -= auio.uio_resid;
|
|
fop->df_reg[0] = wdc->sc_status;
|
|
fop->df_reg[1] = wdc->sc_error;
|
|
return error;
|
|
}
|
|
#endif
|
|
|
|
case ATAIOCCOMMAND:
|
|
/*
|
|
* Make sure this command is (relatively) safe first
|
|
*/
|
|
if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 &&
|
|
(flag & FWRITE) == 0)
|
|
return (EBADF);
|
|
{
|
|
struct wd_ioctl *wi;
|
|
atareq_t *atareq = (atareq_t *) addr;
|
|
int error;
|
|
|
|
wi = wi_get();
|
|
wi->wi_softc = wd;
|
|
wi->wi_atareq = *atareq;
|
|
|
|
if (atareq->datalen && atareq->flags &
|
|
(ATACMD_READ | ATACMD_WRITE)) {
|
|
wi->wi_iov.iov_base = atareq->databuf;
|
|
wi->wi_iov.iov_len = atareq->datalen;
|
|
wi->wi_uio.uio_iov = &wi->wi_iov;
|
|
wi->wi_uio.uio_iovcnt = 1;
|
|
wi->wi_uio.uio_resid = atareq->datalen;
|
|
wi->wi_uio.uio_offset = 0;
|
|
wi->wi_uio.uio_segflg = UIO_USERSPACE;
|
|
wi->wi_uio.uio_rw =
|
|
(atareq->flags & ATACMD_READ) ? B_READ : B_WRITE;
|
|
wi->wi_uio.uio_procp = p;
|
|
error = physio(wdioctlstrategy, &wi->wi_bp, dev,
|
|
(atareq->flags & ATACMD_READ) ? B_READ : B_WRITE,
|
|
minphys, &wi->wi_uio);
|
|
} else {
|
|
/* No need to call physio if we don't have any
|
|
user data */
|
|
wi->wi_bp.b_flags = 0;
|
|
wi->wi_bp.b_data = 0;
|
|
wi->wi_bp.b_bcount = 0;
|
|
wi->wi_bp.b_dev = 0;
|
|
wi->wi_bp.b_proc = p;
|
|
wdioctlstrategy(&wi->wi_bp);
|
|
error = wi->wi_bp.b_error;
|
|
}
|
|
*atareq = wi->wi_atareq;
|
|
wi_free(wi);
|
|
return(error);
|
|
}
|
|
|
|
default:
|
|
return ENOTTY;
|
|
}
|
|
|
|
#ifdef DIAGNOSTIC
|
|
panic("wdioctl: impossible");
|
|
#endif
|
|
}
|
|
|
|
#ifdef B_FORMAT
|
|
int
|
|
wdformat(struct buf *bp)
|
|
{
|
|
|
|
bp->b_flags |= B_FORMAT;
|
|
return wdstrategy(bp);
|
|
}
|
|
#endif
|
|
|
|
int
|
|
wdsize(dev)
|
|
dev_t dev;
|
|
{
|
|
struct wd_softc *wd;
|
|
int part, omask;
|
|
int size;
|
|
|
|
WDCDEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS);
|
|
|
|
wd = device_lookup(&wd_cd, WDUNIT(dev));
|
|
if (wd == NULL)
|
|
return (-1);
|
|
|
|
part = WDPART(dev);
|
|
omask = wd->sc_dk.dk_openmask & (1 << part);
|
|
|
|
if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0)
|
|
return (-1);
|
|
if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP)
|
|
size = -1;
|
|
else
|
|
size = wd->sc_dk.dk_label->d_partitions[part].p_size *
|
|
(wd->sc_dk.dk_label->d_secsize / DEV_BSIZE);
|
|
if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0)
|
|
return (-1);
|
|
return (size);
|
|
}
|
|
|
|
/* #define WD_DUMP_NOT_TRUSTED if you just want to watch */
|
|
static int wddoingadump = 0;
|
|
static int wddumprecalibrated = 0;
|
|
static int wddumpmulti = 1;
|
|
|
|
/*
|
|
* Dump core after a system crash.
|
|
*/
|
|
int
|
|
wddump(dev, blkno, va, size)
|
|
dev_t dev;
|
|
daddr_t blkno;
|
|
caddr_t va;
|
|
size_t size;
|
|
{
|
|
struct wd_softc *wd; /* disk unit to do the I/O */
|
|
struct disklabel *lp; /* disk's disklabel */
|
|
int part, err;
|
|
int nblks; /* total number of sectors left to write */
|
|
char errbuf[256];
|
|
|
|
/* Check if recursive dump; if so, punt. */
|
|
if (wddoingadump)
|
|
return EFAULT;
|
|
wddoingadump = 1;
|
|
|
|
wd = device_lookup(&wd_cd, WDUNIT(dev));
|
|
if (wd == NULL)
|
|
return (ENXIO);
|
|
|
|
part = WDPART(dev);
|
|
|
|
/* Make sure it was initialized. */
|
|
if (wd->drvp->state < READY)
|
|
return ENXIO;
|
|
|
|
/* Convert to disk sectors. Request must be a multiple of size. */
|
|
lp = wd->sc_dk.dk_label;
|
|
if ((size % lp->d_secsize) != 0)
|
|
return EFAULT;
|
|
nblks = size / lp->d_secsize;
|
|
blkno = blkno / (lp->d_secsize / DEV_BSIZE);
|
|
|
|
/* Check transfer bounds against partition size. */
|
|
if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size))
|
|
return EINVAL;
|
|
|
|
/* Offset block number to start of partition. */
|
|
blkno += lp->d_partitions[part].p_offset;
|
|
|
|
/* Recalibrate, if first dump transfer. */
|
|
if (wddumprecalibrated == 0) {
|
|
wddumpmulti = wd->sc_multi;
|
|
wddumprecalibrated = 1;
|
|
wd->drvp->state = RESET;
|
|
}
|
|
|
|
while (nblks > 0) {
|
|
again:
|
|
wd->sc_wdc_bio.blkno = blkno;
|
|
wd->sc_wdc_bio.flags = ATA_POLL;
|
|
if (wddumpmulti == 1)
|
|
wd->sc_wdc_bio.flags |= ATA_SINGLE;
|
|
if (wd->sc_flags & WDF_LBA)
|
|
wd->sc_wdc_bio.flags |= ATA_LBA;
|
|
wd->sc_wdc_bio.bcount =
|
|
min(nblks, wddumpmulti) * lp->d_secsize;
|
|
wd->sc_wdc_bio.databuf = va;
|
|
#ifndef WD_DUMP_NOT_TRUSTED
|
|
switch (wdc_ata_bio(wd->drvp, &wd->sc_wdc_bio)) {
|
|
case WDC_TRY_AGAIN:
|
|
panic("wddump: try again");
|
|
break;
|
|
case WDC_QUEUED:
|
|
panic("wddump: polled command has been queued");
|
|
break;
|
|
case WDC_COMPLETE:
|
|
break;
|
|
}
|
|
switch(wd->sc_wdc_bio.error) {
|
|
case TIMEOUT:
|
|
printf("wddump: device timed out");
|
|
err = EIO;
|
|
break;
|
|
case ERR_DF:
|
|
printf("wddump: drive fault");
|
|
err = EIO;
|
|
break;
|
|
case ERR_DMA:
|
|
printf("wddump: DMA error");
|
|
err = EIO;
|
|
break;
|
|
case ERROR:
|
|
errbuf[0] = '\0';
|
|
ata_perror(wd->drvp, wd->sc_wdc_bio.r_error, errbuf);
|
|
printf("wddump: %s", errbuf);
|
|
err = EIO;
|
|
break;
|
|
case NOERROR:
|
|
err = 0;
|
|
break;
|
|
default:
|
|
panic("wddump: unknown error type");
|
|
}
|
|
if (err != 0) {
|
|
if (wddumpmulti != 1) {
|
|
wddumpmulti = 1; /* retry in single-sector */
|
|
printf(", retrying\n");
|
|
goto again;
|
|
}
|
|
printf("\n");
|
|
return err;
|
|
}
|
|
#else /* WD_DUMP_NOT_TRUSTED */
|
|
/* Let's just talk about this first... */
|
|
printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n",
|
|
unit, va, cylin, head, sector);
|
|
delay(500 * 1000); /* half a second */
|
|
#endif
|
|
|
|
/* update block count */
|
|
nblks -= min(nblks, wddumpmulti);
|
|
blkno += min(nblks, wddumpmulti);
|
|
va += min(nblks, wddumpmulti) * lp->d_secsize;
|
|
}
|
|
|
|
wddoingadump = 0;
|
|
return 0;
|
|
}
|
|
|
|
#ifdef HAS_BAD144_HANDLING
|
|
/*
|
|
* Internalize the bad sector table.
|
|
*/
|
|
void
|
|
bad144intern(wd)
|
|
struct wd_softc *wd;
|
|
{
|
|
struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad;
|
|
struct disklabel *lp = wd->sc_dk.dk_label;
|
|
int i = 0;
|
|
|
|
WDCDEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS);
|
|
|
|
for (; i < NBT_BAD; i++) {
|
|
if (bt->bt_bad[i].bt_cyl == 0xffff)
|
|
break;
|
|
wd->sc_badsect[i] =
|
|
bt->bt_bad[i].bt_cyl * lp->d_secpercyl +
|
|
(bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors +
|
|
(bt->bt_bad[i].bt_trksec & 0xff);
|
|
}
|
|
for (; i < NBT_BAD+1; i++)
|
|
wd->sc_badsect[i] = -1;
|
|
}
|
|
#endif
|
|
|
|
int
|
|
wd_get_params(wd, flags, params)
|
|
struct wd_softc *wd;
|
|
u_int8_t flags;
|
|
struct ataparams *params;
|
|
{
|
|
switch (ata_get_params(wd->drvp, flags, params)) {
|
|
case CMD_AGAIN:
|
|
return 1;
|
|
case CMD_ERR:
|
|
/*
|
|
* We `know' there's a drive here; just assume it's old.
|
|
* This geometry is only used to read the MBR and print a
|
|
* (false) attach message.
|
|
*/
|
|
strncpy(params->atap_model, "ST506",
|
|
sizeof params->atap_model);
|
|
params->atap_config = ATA_CFG_FIXED;
|
|
params->atap_cylinders = 1024;
|
|
params->atap_heads = 8;
|
|
params->atap_sectors = 17;
|
|
params->atap_multi = 1;
|
|
params->atap_capabilities1 = params->atap_capabilities2 = 0;
|
|
wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */
|
|
return 0;
|
|
case CMD_OK:
|
|
return 0;
|
|
default:
|
|
panic("wd_get_params: bad return code from ata_get_params");
|
|
/* NOTREACHED */
|
|
}
|
|
}
|
|
|
|
void
|
|
wd_flushcache(wd, flags)
|
|
struct wd_softc *wd;
|
|
int flags;
|
|
{
|
|
struct wdc_command wdc_c;
|
|
|
|
if (wd->drvp->ata_vers < 4) /* WDCC_FLUSHCACHE is here since ATA-4 */
|
|
return;
|
|
memset(&wdc_c, 0, sizeof(struct wdc_command));
|
|
wdc_c.r_command = WDCC_FLUSHCACHE;
|
|
wdc_c.r_st_bmask = WDCS_DRDY;
|
|
wdc_c.r_st_pmask = WDCS_DRDY;
|
|
wdc_c.flags = flags;
|
|
wdc_c.timeout = 30000; /* 30s timeout */
|
|
if (wdc_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) {
|
|
printf("%s: flush cache command didn't complete\n",
|
|
wd->sc_dev.dv_xname);
|
|
}
|
|
if (wdc_c.flags & AT_TIMEOU) {
|
|
printf("%s: flush cache command timeout\n",
|
|
wd->sc_dev.dv_xname);
|
|
}
|
|
if (wdc_c.flags & AT_DF) {
|
|
printf("%s: flush cache command: drive fault\n",
|
|
wd->sc_dev.dv_xname);
|
|
}
|
|
/*
|
|
* Ignore error register, it shouldn't report anything else
|
|
* than COMMAND ABORTED, which means the device doesn't support
|
|
* flush cache
|
|
*/
|
|
}
|
|
|
|
void
|
|
wd_shutdown(arg)
|
|
void *arg;
|
|
{
|
|
struct wd_softc *wd = arg;
|
|
wd_flushcache(wd, AT_POLL);
|
|
}
|
|
|
|
/*
|
|
* Allocate space for a ioctl queue structure. Mostly taken from
|
|
* scsipi_ioctl.c
|
|
*/
|
|
struct wd_ioctl *
|
|
wi_get()
|
|
{
|
|
struct wd_ioctl *wi;
|
|
int s;
|
|
|
|
wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK);
|
|
memset(wi, 0, sizeof (struct wd_ioctl));
|
|
s = splbio();
|
|
LIST_INSERT_HEAD(&wi_head, wi, wi_list);
|
|
splx(s);
|
|
return (wi);
|
|
}
|
|
|
|
/*
|
|
* Free an ioctl structure and remove it from our list
|
|
*/
|
|
|
|
void
|
|
wi_free(wi)
|
|
struct wd_ioctl *wi;
|
|
{
|
|
int s;
|
|
|
|
s = splbio();
|
|
LIST_REMOVE(wi, wi_list);
|
|
splx(s);
|
|
free(wi, M_TEMP);
|
|
}
|
|
|
|
/*
|
|
* Find a wd_ioctl structure based on the struct buf.
|
|
*/
|
|
|
|
struct wd_ioctl *
|
|
wi_find(bp)
|
|
struct buf *bp;
|
|
{
|
|
struct wd_ioctl *wi;
|
|
int s;
|
|
|
|
s = splbio();
|
|
for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next)
|
|
if (bp == &wi->wi_bp)
|
|
break;
|
|
splx(s);
|
|
return (wi);
|
|
}
|
|
|
|
/*
|
|
* Ioctl pseudo strategy routine
|
|
*
|
|
* This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What
|
|
* happens here is:
|
|
*
|
|
* - wdioctl() queues a wd_ioctl structure.
|
|
*
|
|
* - wdioctl() calls physio/wdioctlstrategy based on whether or not
|
|
* user space I/O is required. If physio() is called, physio() eventually
|
|
* calls wdioctlstrategy().
|
|
*
|
|
* - In either case, wdioctlstrategy() calls wdc_exec_command()
|
|
* to perform the actual command
|
|
*
|
|
* The reason for the use of the pseudo strategy routine is because
|
|
* when doing I/O to/from user space, physio _really_ wants to be in
|
|
* the loop. We could put the entire buffer into the ioctl request
|
|
* structure, but that won't scale if we want to do things like download
|
|
* microcode.
|
|
*/
|
|
|
|
void
|
|
wdioctlstrategy(bp)
|
|
struct buf *bp;
|
|
{
|
|
struct wd_ioctl *wi;
|
|
struct wdc_command wdc_c;
|
|
int error = 0;
|
|
|
|
wi = wi_find(bp);
|
|
if (wi == NULL) {
|
|
printf("user_strat: No ioctl\n");
|
|
error = EINVAL;
|
|
goto bad;
|
|
}
|
|
|
|
memset(&wdc_c, 0, sizeof(wdc_c));
|
|
|
|
/*
|
|
* Abort if physio broke up the transfer
|
|
*/
|
|
|
|
if (bp->b_bcount != wi->wi_atareq.datalen) {
|
|
printf("physio split wd ioctl request... cannot proceed\n");
|
|
error = EIO;
|
|
goto bad;
|
|
}
|
|
|
|
/*
|
|
* Abort if we didn't get a buffer size that was a multiple of
|
|
* our sector size (or was larger than NBBY)
|
|
*/
|
|
|
|
if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 ||
|
|
(bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >=
|
|
(1 << NBBY)) {
|
|
error = EINVAL;
|
|
goto bad;
|
|
}
|
|
|
|
/*
|
|
* Make sure a timeout was supplied in the ioctl request
|
|
*/
|
|
|
|
if (wi->wi_atareq.timeout == 0) {
|
|
error = EINVAL;
|
|
goto bad;
|
|
}
|
|
|
|
if (wi->wi_atareq.flags & ATACMD_READ)
|
|
wdc_c.flags |= AT_READ;
|
|
else if (wi->wi_atareq.flags & ATACMD_WRITE)
|
|
wdc_c.flags |= AT_WRITE;
|
|
|
|
if (wi->wi_atareq.flags & ATACMD_READREG)
|
|
wdc_c.flags |= AT_READREG;
|
|
|
|
wdc_c.flags |= AT_WAIT;
|
|
|
|
wdc_c.timeout = wi->wi_atareq.timeout;
|
|
wdc_c.r_command = wi->wi_atareq.command;
|
|
wdc_c.r_head = wi->wi_atareq.head & 0x0f;
|
|
wdc_c.r_cyl = wi->wi_atareq.cylinder;
|
|
wdc_c.r_sector = wi->wi_atareq.sec_num;
|
|
wdc_c.r_count = wi->wi_atareq.sec_count;
|
|
wdc_c.r_precomp = wi->wi_atareq.features;
|
|
wdc_c.r_st_bmask = WDCS_DRDY;
|
|
wdc_c.r_st_pmask = WDCS_DRDY;
|
|
wdc_c.data = wi->wi_bp.b_data;
|
|
wdc_c.bcount = wi->wi_bp.b_bcount;
|
|
|
|
if (wdc_exec_command(wi->wi_softc->drvp, &wdc_c) != WDC_COMPLETE) {
|
|
wi->wi_atareq.retsts = ATACMD_ERROR;
|
|
goto bad;
|
|
}
|
|
|
|
if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) {
|
|
if (wdc_c.flags & AT_ERROR) {
|
|
wi->wi_atareq.retsts = ATACMD_ERROR;
|
|
wi->wi_atareq.error = wdc_c.r_error;
|
|
} else if (wdc_c.flags & AT_DF)
|
|
wi->wi_atareq.retsts = ATACMD_DF;
|
|
else
|
|
wi->wi_atareq.retsts = ATACMD_TIMEOUT;
|
|
} else {
|
|
wi->wi_atareq.retsts = ATACMD_OK;
|
|
if (wi->wi_atareq.flags & ATACMD_READREG) {
|
|
wi->wi_atareq.head = wdc_c.r_head ;
|
|
wi->wi_atareq.cylinder = wdc_c.r_cyl;
|
|
wi->wi_atareq.sec_num = wdc_c.r_sector;
|
|
wi->wi_atareq.sec_count = wdc_c.r_count;
|
|
wi->wi_atareq.features = wdc_c.r_precomp;
|
|
wi->wi_atareq.error = wdc_c.r_error;
|
|
}
|
|
}
|
|
|
|
bp->b_error = 0;
|
|
biodone(bp);
|
|
return;
|
|
bad:
|
|
bp->b_flags |= B_ERROR;
|
|
bp->b_error = error;
|
|
biodone(bp);
|
|
}
|