freebsd-skq/sys/i386/isa/wd.c

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1993-06-12 14:58:17 +00:00
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* from: @(#)wd.c 7.2 (Berkeley) 5/9/91
* $Id: wd.c,v 1.183 1999/01/11 22:14:22 julian Exp $
1993-06-12 14:58:17 +00:00
*/
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* TODO:
* o Bump error count after timeout.
* o Satisfy ATA timing in all cases.
* o Finish merging berry/sos timeout code (bump error count...).
* o Merge/fix TIH/NetBSD bad144 code.
* o Don't use polling except for initialization. Need to
* reorganize the state machine. Then "extra" interrupts
* shouldn't happen (except maybe one for initialization).
* o Fix disklabel, boot and driver inconsistencies with
* bad144 in standard versions.
* o Support extended DOS partitions.
* o Support swapping to DOS partitions.
* o Handle bad sectors, clustering, disklabelling, DOS
* partitions and swapping driver-independently. Use
* i386/dkbad.c for bad sectors. Swapping will need new
* driver entries for polled reinit and polled write).
*/
1993-06-12 14:58:17 +00:00
#include "wd.h"
#ifdef NWDC
#undef NWDC
#endif
#include "wdc.h"
#if NWDC > 0
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#include "opt_atapi.h"
#include "opt_devfs.h"
#include "opt_hw_wdog.h"
#include "opt_ide_delay.h"
#include "opt_wd.h"
#include "pci.h"
#include <sys/param.h>
#include <sys/dkbad.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/disklabel.h>
#include <sys/diskslice.h>
#include <sys/buf.h>
#include <sys/devicestat.h>
#include <sys/malloc.h>
#ifdef DEVFS
#include <sys/devfsext.h>
#endif /*DEVFS*/
#include <machine/bootinfo.h>
#include <machine/clock.h>
#include <machine/cons.h>
#include <machine/md_var.h>
#include <i386/isa/isa.h>
#include <i386/isa/isa_device.h>
#include <i386/isa/wdreg.h>
#include <sys/syslog.h>
#include <vm/vm.h>
#include <vm/vm_prot.h>
#include <vm/pmap.h>
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#ifdef ATAPI
#include <i386/isa/atapi.h>
#endif
#ifdef CMD640
#include <i386/isa/wdc_p.h>
#endif /*CMD640*/
extern void wdstart(int ctrlr);
#ifdef IDE_DELAY
#define TIMEOUT IDE_DELAY
#else
#define TIMEOUT 10000
#endif
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#define RETRIES 5 /* number of retries before giving up */
#define RECOVERYTIME 500000 /* usec for controller to recover after err */
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#define MAXTRANSFER 255 /* max size of transfer in sectors */
/* correct max is 256 but some controllers */
/* can't handle that in all cases */
#define WDOPT_32BIT 0x8000
#define WDOPT_SLEEPHACK 0x4000
#define WDOPT_DMA 0x2000
#define WDOPT_LBA 0x1000
#define WDOPT_FORCEHD(x) (((x)&0x0f00)>>8)
#define WDOPT_MULTIMASK 0x00ff
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/*
* This biotab field doubles as a field for the physical unit number on
* the controller.
*/
#define id_physid id_scsiid
1993-06-12 14:58:17 +00:00
/*
* Drive states. Used to initialize drive.
*/
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#define CLOSED 0 /* disk is closed. */
#define WANTOPEN 1 /* open requested, not started */
#define RECAL 2 /* doing restore */
#define OPEN 3 /* done with open */
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#define PRIMARY 0
/*
* Disk geometry. A small part of struct disklabel.
* XXX disklabel.5 contains an old clone of disklabel.h.
*/
struct diskgeom {
u_long d_secsize; /* # of bytes per sector */
u_long d_nsectors; /* # of data sectors per track */
u_long d_ntracks; /* # of tracks per cylinder */
u_long d_ncylinders; /* # of data cylinders per unit */
u_long d_secpercyl; /* # of data sectors per cylinder */
u_long d_secperunit; /* # of data sectors per unit */
u_long d_precompcyl; /* XXX always 0 */
};
1993-06-12 14:58:17 +00:00
/*
* The structure of a disk drive.
*/
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
struct disk {
1998-05-07 01:15:23 +00:00
u_int dk_bc; /* byte count left */
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short dk_skip; /* blocks already transferred */
int dk_ctrlr; /* physical controller number */
#ifdef CMD640
int dk_ctrlr_cmd640;/* controller number for CMD640 quirk */
#endif
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u_int32_t dk_unit; /* physical unit number */
u_int32_t dk_lunit; /* logical unit number */
u_int32_t dk_interface; /* interface (two ctrlrs per interface) */
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char dk_state; /* control state */
u_char dk_status; /* copy of status reg. */
u_char dk_error; /* copy of error reg. */
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
u_char dk_timeout; /* countdown to next timeout */
1998-05-07 01:15:23 +00:00
u_int32_t dk_port; /* i/o port base */
u_int32_t dk_altport; /* altstatus port base */
#ifdef DEVFS
void *dk_bdev; /* devfs token for whole disk */
void *dk_cdev; /* devfs token for raw whole disk */
#endif /* DEVFS */
u_long cfg_flags; /* configured characteristics */
short dk_flags; /* drive characteristics found */
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#define DKFL_SINGLE 0x00004 /* sector at a time mode */
#define DKFL_ERROR 0x00008 /* processing a disk error */
#define DKFL_LABELLING 0x00080 /* readdisklabel() in progress */
#define DKFL_32BIT 0x00100 /* use 32-bit i/o mode */
#define DKFL_MULTI 0x00200 /* use multi-i/o mode */
#define DKFL_BADSCAN 0x00400 /* report all errors */
#define DKFL_USEDMA 0x00800 /* use DMA for data transfers */
#define DKFL_DMA 0x01000 /* using DMA on this transfer-- DKFL_SINGLE
* overrides this
*/
#define DKFL_LBA 0x02000 /* use LBA for data transfers */
1993-06-12 14:58:17 +00:00
struct wdparams dk_params; /* ESDI/IDE drive/controller parameters */
1998-05-07 01:15:23 +00:00
unsigned int dk_multi; /* multi transfers */
int dk_currentiosize; /* current io size */
struct diskgeom dk_dd; /* device configuration data */
struct diskslices *dk_slices; /* virtual drives */
void *dk_dmacookie; /* handle for DMA services */
struct devstat dk_stats; /* devstat entry */
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};
#define WD_COUNT_RETRIES
static int wdtest = 0;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static struct disk *wddrives[NWD]; /* table of units */
static struct buf_queue_head drive_queue[NWD]; /* head of queue per drive */
static struct {
int b_active;
} wdutab[NWD];
/*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static struct buf wdtab[NWDC];
*/
static struct {
struct buf_queue_head controller_queue;
int b_errcnt;
int b_active;
} wdtab[NWDC];
struct wddma wddma[NWDC];
#ifdef notyet
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static struct buf rwdbuf[NWD]; /* buffers for raw IO */
1993-06-12 14:58:17 +00:00
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static int wdprobe(struct isa_device *dvp);
static int wdattach(struct isa_device *dvp);
static void wdustart(struct disk *du);
static int wdcontrol(struct buf *bp);
static int wdcommand(struct disk *du, u_int cylinder, u_int head,
u_int sector, u_int count, u_int command);
static int wdsetctlr(struct disk *du);
#if 0
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static int wdwsetctlr(struct disk *du);
#endif
static int wdsetmode(int mode, void *wdinfo);
static int wdgetctlr(struct disk *du);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static void wderror(struct buf *bp, struct disk *du, char *mesg);
static void wdflushirq(struct disk *du, int old_ipl);
static int wdreset(struct disk *du);
static void wdsleep(int ctrlr, char *wmesg);
static void wdstrategy1(struct buf *bp);
static timeout_t wdtimeout;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static int wdunwedge(struct disk *du);
static int wdwait(struct disk *du, u_char bits_wanted, int timeout);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
struct isa_driver wdcdriver = {
wdprobe, wdattach, "wdc",
1993-06-12 14:58:17 +00:00
};
static d_open_t wdopen;
static d_read_t wdread;
static d_write_t wdwrite;
static d_close_t wdclose;
static d_strategy_t wdstrategy;
static d_ioctl_t wdioctl;
static d_dump_t wddump;
static d_psize_t wdsize;
#define CDEV_MAJOR 3
#define BDEV_MAJOR 0
static struct cdevsw wd_cdevsw = {
wdopen, wdclose, wdread, wdwrite,
wdioctl, nostop, nullreset, nodevtotty,
seltrue, nommap, wdstrategy, "wd",
NULL, -1, wddump, wdsize,
D_DISK, 0, -1 };
#ifdef CMD640
static int atapictrlr;
static int eide_quirks;
#endif
/*
* Here we use the pci-subsystem to find out, whether there is
* a cmd640b-chip attached on this pci-bus. This public routine
* will be called by wdc_p.c .
*/
#ifdef CMD640
void
wdc_pci(int quirks)
{
eide_quirks = quirks;
}
#endif
1993-06-12 14:58:17 +00:00
/*
* Probe for controller.
*/
static int
1993-06-12 14:58:17 +00:00
wdprobe(struct isa_device *dvp)
{
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
int unit = dvp->id_unit;
int interface;
1993-06-12 14:58:17 +00:00
struct disk *du;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if (unit >= NWDC)
return (0);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du = malloc(sizeof *du, M_TEMP, M_NOWAIT);
if (du == NULL)
return (0);
bzero(du, sizeof *du);
du->dk_ctrlr = dvp->id_unit;
interface = du->dk_ctrlr / 2;
du->dk_interface = interface;
#if !defined(DISABLE_PCI_IDE) && (NPCI > 0)
#ifdef ALI_V
if ((wddma[interface].wdd_candma) &&
((du->dk_dmacookie = wddma[interface].wdd_candma(dvp->id_iobase,du->dk_ctrlr)) != NULL))
{
du->dk_port = dvp->id_iobase;
du->dk_altport = wddma[interface].wdd_altiobase(du->dk_dmacookie);
} else {
du->dk_port = dvp->id_iobase;
du->dk_altport = du->dk_port + wd_ctlr;
}
#endif
if (wddma[interface].wdd_candma) {
du->dk_dmacookie = wddma[interface].wdd_candma(dvp->id_iobase,du->dk_ctrlr);
du->dk_port = dvp->id_iobase;
du->dk_altport = wddma[interface].wdd_altiobase(du->dk_dmacookie);
} else {
du->dk_port = dvp->id_iobase;
du->dk_altport = du->dk_port + wd_ctlr;
}
#else
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_port = dvp->id_iobase;
du->dk_altport = du->dk_port + wd_ctlr;
#endif
1993-06-12 14:58:17 +00:00
/* check if we have registers that work */
outb(du->dk_port + wd_sdh, WDSD_IBM); /* set unit 0 */
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
outb(du->dk_port + wd_cyl_lo, 0xa5); /* wd_cyl_lo is read/write */
if (inb(du->dk_port + wd_cyl_lo) == 0xff) { /* XXX too weak */
#ifdef ATAPI
/* There is no master, try the ATAPI slave. */
outb(du->dk_port + wd_sdh, WDSD_IBM | 0x10);
outb(du->dk_port + wd_cyl_lo, 0xa5);
if (inb(du->dk_port + wd_cyl_lo) == 0xff)
#endif
goto nodevice;
}
1993-06-12 14:58:17 +00:00
if (wdreset(du) == 0)
goto reset_ok;
#ifdef ATAPI
/* test for ATAPI signature */
outb(du->dk_port + wd_sdh, WDSD_IBM); /* master */
if (inb(du->dk_port + wd_cyl_lo) == 0x14 &&
inb(du->dk_port + wd_cyl_hi) == 0xeb)
goto reset_ok;
du->dk_unit = 1;
outb(du->dk_port + wd_sdh, WDSD_IBM | 0x10); /* slave */
if (inb(du->dk_port + wd_cyl_lo) == 0x14 &&
inb(du->dk_port + wd_cyl_hi) == 0xeb)
goto reset_ok;
#endif
DELAY(RECOVERYTIME);
if (wdreset(du) != 0) {
goto nodevice;
}
reset_ok:
1993-06-12 14:58:17 +00:00
/* execute a controller only command */
if (wdcommand(du, 0, 0, 0, 0, WDCC_DIAGNOSE) != 0
|| wdwait(du, 0, TIMEOUT) < 0) {
1993-06-12 14:58:17 +00:00
goto nodevice;
}
1993-06-12 14:58:17 +00:00
/*
* drive(s) did not time out during diagnostic :
* Get error status and check that both drives are OK.
1995-04-24 05:09:53 +00:00
* Table 9-2 of ATA specs suggests that we must check for
* a value of 0x01
*
* Strangely, some controllers will return a status of
* 0x81 (drive 0 OK, drive 1 failure), and then when
* the DRV bit is set, return status of 0x01 (OK) for
* drive 2. (This seems to contradict the ATA spec.)
*/
du->dk_error = inb(du->dk_port + wd_error);
if(du->dk_error != 0x01 && du->dk_error != 0) {
1995-04-24 05:09:53 +00:00
if(du->dk_error & 0x80) { /* drive 1 failure */
/* first set the DRV bit */
u_int sdh;
sdh = inb(du->dk_port+ wd_sdh);
sdh = sdh | 0x10;
outb(du->dk_port+ wd_sdh, sdh);
/* Wait, to make sure drv 1 has completed diags */
if ( wdwait(du, 0, TIMEOUT) < 0)
goto nodevice;
/* Get status for drive 1 */
1995-04-24 05:09:53 +00:00
du->dk_error = inb(du->dk_port + wd_error);
/* printf("Error (drv 1) : %x\n", du->dk_error); */
/*
* Sometimes (apparently mostly with ATAPI
* drives involved) 0x81 really means 0x81
* (drive 0 OK, drive 1 failed).
*/
if(du->dk_error != 0x01 && du->dk_error != 0x81)
goto nodevice;
} else /* drive 0 fail */
goto nodevice;
}
1995-04-24 05:09:53 +00:00
free(du, M_TEMP);
return (IO_WDCSIZE);
1993-06-12 14:58:17 +00:00
nodevice:
free(du, M_TEMP);
return (0);
}
/*
* Attach each drive if possible.
*/
static int
1993-06-12 14:58:17 +00:00
wdattach(struct isa_device *dvp)
{
#if defined(DEVFS)
int mynor;
#endif
1998-05-07 01:15:23 +00:00
u_int unit, lunit;
struct isa_device *wdup;
struct disk *du;
struct wdparams *wp;
dvp->id_intr = wdintr;
if (dvp->id_unit >= NWDC)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (0);
#ifdef CMD640
if (eide_quirks & Q_CMD640B) {
if (dvp->id_unit == PRIMARY) {
printf("wdc0: CMD640B workaround enabled\n");
bufq_init(&wdtab[PRIMARY].controller_queue);
}
} else
bufq_init(&wdtab[dvp->id_unit].controller_queue);
#else
bufq_init(&wdtab[dvp->id_unit].controller_queue);
#endif
for (wdup = isa_biotab_wdc; wdup->id_driver != 0; wdup++) {
if (wdup->id_iobase != dvp->id_iobase)
continue;
lunit = wdup->id_unit;
if (lunit >= NWD)
continue;
unit = wdup->id_physid;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du = malloc(sizeof *du, M_TEMP, M_NOWAIT);
if (du == NULL)
continue;
if (wddrives[lunit] != NULL)
panic("drive attached twice");
wddrives[lunit] = du;
bufq_init(&drive_queue[lunit]);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
bzero(du, sizeof *du);
du->dk_ctrlr = dvp->id_unit;
#ifdef CMD640
if (eide_quirks & Q_CMD640B) {
du->dk_ctrlr_cmd640 = PRIMARY;
} else {
du->dk_ctrlr_cmd640 = du->dk_ctrlr;
}
#endif
du->dk_unit = unit;
du->dk_lunit = lunit;
du->dk_port = dvp->id_iobase;
1993-06-12 14:58:17 +00:00
du->dk_altport = du->dk_port + wd_ctlr;
/*
* Use the individual device flags or the controller
* flags.
*/
du->cfg_flags = wdup->id_flags |
((dvp->id_flags) >> (16 * unit));
if (wdgetctlr(du) == 0) {
/*
* Print out description of drive.
* wdp_model may not be null terminated.
*/
printf("wdc%d: unit %d (wd%d): <%.*s>",
dvp->id_unit, unit, lunit,
1998-07-11 07:46:16 +00:00
(int)sizeof(du->dk_params.wdp_model),
du->dk_params.wdp_model);
if (du->dk_flags & DKFL_LBA)
printf(", LBA");
if (du->dk_flags & DKFL_USEDMA)
printf(", DMA");
if (du->dk_flags & DKFL_32BIT)
printf(", 32-bit");
if (du->dk_multi > 1)
printf(", multi-block-%d", du->dk_multi);
if (du->cfg_flags & WDOPT_SLEEPHACK)
printf(", sleep-hack");
printf("\n");
if (du->dk_params.wdp_heads == 0)
printf("wd%d: size unknown, using %s values\n",
lunit, du->dk_dd.d_secperunit > 17
? "BIOS" : "fake");
printf( "wd%d: %luMB (%lu sectors), "
"%lu cyls, %lu heads, %lu S/T, %lu B/S\n",
lunit,
du->dk_dd.d_secperunit
/ ((1024L * 1024L) / du->dk_dd.d_secsize),
du->dk_dd.d_secperunit,
du->dk_dd.d_ncylinders,
du->dk_dd.d_ntracks,
du->dk_dd.d_nsectors,
du->dk_dd.d_secsize);
if (bootverbose) {
wp = &du->dk_params;
printf( "wd%d: ATA INQUIRE valid = %04x, "
"dmamword = %04x, apio = %04x, "
"udma = %04x\n",
du->dk_lunit,
wp->wdp_atavalid,
wp->wdp_dmamword,
wp->wdp_eidepiomodes,
wp->wdp_udmamode);
}
/*
* Start timeout routine for this drive.
* XXX timeout should be per controller.
*/
wdtimeout(du);
#ifdef DEVFS
mynor = dkmakeminor(lunit, WHOLE_DISK_SLICE, RAW_PART);
du->dk_bdev = devfs_add_devswf(&wd_cdevsw, mynor,
DV_BLK, UID_ROOT,
GID_OPERATOR, 0640,
"wd%d", lunit);
du->dk_cdev = devfs_add_devswf(&wd_cdevsw, mynor,
DV_CHR, UID_ROOT,
GID_OPERATOR, 0640,
"rwd%d", lunit);
#endif
/*
* Export the drive to the devstat interface.
*/
devstat_add_entry(&du->dk_stats, "wd",
lunit, du->dk_dd.d_secsize,
DEVSTAT_NO_ORDERED_TAGS,
DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_IDE);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
} else {
free(du, M_TEMP);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wddrives[lunit] = NULL;
1993-06-12 14:58:17 +00:00
}
}
#ifdef ATAPI
/*
* Probe all free IDE units, searching for ATAPI drives.
*/
for (unit=0; unit<2; ++unit) {
for (lunit=0; lunit<NWD; ++lunit)
if (wddrives[lunit] &&
wddrives[lunit]->dk_ctrlr == dvp->id_unit &&
wddrives[lunit]->dk_unit == unit)
goto next;
#ifdef CMD640
if (atapi_attach (dvp->id_unit, unit, dvp->id_iobase))
atapictrlr = dvp->id_unit;
#else
atapi_attach (dvp->id_unit, unit, dvp->id_iobase);
#endif
next: ;
}
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/*
* Discard any interrupts generated by wdgetctlr(). wdflushirq()
* doesn't work now because the ambient ipl is too high.
*/
#ifdef CMD640
if (eide_quirks & Q_CMD640B) {
wdtab[PRIMARY].b_active = 2;
} else {
wdtab[dvp->id_unit].b_active = 2;
}
#else
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wdtab[dvp->id_unit].b_active = 2;
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (1);
1993-06-12 14:58:17 +00:00
}
static int
wdread(dev_t dev, struct uio *uio, int ioflag)
{
return (physio(wdstrategy, NULL, dev, 1, minphys, uio));
}
static int
wdwrite(dev_t dev, struct uio *uio, int ioflag)
{
return (physio(wdstrategy, NULL, dev, 0, minphys, uio));
}
1993-06-12 14:58:17 +00:00
/* Read/write routine for a buffer. Finds the proper unit, range checks
* arguments, and schedules the transfer. Does not wait for the transfer
* to complete. Multi-page transfers are supported. All I/O requests must
* be a multiple of a sector in length.
*/
void
1993-06-12 14:58:17 +00:00
wdstrategy(register struct buf *bp)
{
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
struct disk *du;
int lunit = dkunit(bp->b_dev);
1993-06-12 14:58:17 +00:00
int s;
/* valid unit, controller, and request? */
if (lunit >= NWD || bp->b_blkno < 0 || (du = wddrives[lunit]) == NULL
|| bp->b_bcount % DEV_BSIZE != 0) {
1993-06-12 14:58:17 +00:00
bp->b_error = EINVAL;
bp->b_flags |= B_ERROR;
goto done;
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/*
* Do bounds checking, adjust transfer, and set b_pblkno.
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
*/
if (dscheck(bp, du->dk_slices) <= 0)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
goto done;
1993-06-12 14:58:17 +00:00
/*
* Check for *any* block on this transfer being on the bad block list
* if it is, then flag the block as a transfer that requires
* bad block handling. Also, used as a hint for low level disksort
* clustering code to keep from coalescing a bad transfer into
* a normal transfer. Single block transfers for a large number of
* blocks associated with a cluster I/O are undesirable.
*
* XXX the old disksort() doesn't look at B_BAD. Coalescing _is_
* desirable. We should split the results at bad blocks just
* like we should split them at MAXTRANSFER boundaries.
*/
if (dsgetbad(bp->b_dev, du->dk_slices) != NULL) {
long *badsect = dsgetbad(bp->b_dev, du->dk_slices)->bi_bad;
int i;
int nsecs = howmany(bp->b_bcount, DEV_BSIZE);
/* XXX pblkno is too physical. */
daddr_t nspblkno = bp->b_pblkno
- du->dk_slices->dss_slices[dkslice(bp->b_dev)].ds_offset;
int blkend = nspblkno + nsecs;
for (i = 0; badsect[i] != -1 && badsect[i] < blkend; i++) {
if (badsect[i] >= nspblkno) {
bp->b_flags |= B_BAD;
break;
}
}
}
1993-06-12 14:58:17 +00:00
/* queue transfer on drive, activate drive and controller if idle */
s = splbio();
/* Pick up changes made by readdisklabel(). */
if (du->dk_flags & DKFL_LABELLING && du->dk_state > RECAL) {
wdsleep(du->dk_ctrlr, "wdlab");
du->dk_state = WANTOPEN;
}
bufqdisksort(&drive_queue[lunit], bp);
if (wdutab[lunit].b_active == 0)
wdustart(du); /* start drive */
#ifdef CMD640
if (wdtab[du->dk_ctrlr_cmd640].b_active == 0)
#else
if (wdtab[du->dk_ctrlr].b_active == 0)
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wdstart(du->dk_ctrlr); /* start controller */
/* Tell devstat that we have started a transaction on this drive */
devstat_start_transaction(&du->dk_stats);
1993-06-12 14:58:17 +00:00
splx(s);
return;
done:
s = splbio();
1993-06-12 14:58:17 +00:00
/* toss transfer, we're done early */
biodone(bp);
splx(s);
1993-06-12 14:58:17 +00:00
}
static void
wdstrategy1(struct buf *bp)
{
/*
* XXX - do something to make wdstrategy() but not this block while
* we're doing dsinit() and dsioctl().
*/
wdstrategy(bp);
}
1993-06-12 14:58:17 +00:00
/*
* Routine to queue a command to the controller. The unit's
* request is linked into the active list for the controller.
* If the controller is idle, the transfer is started.
*/
static void
wdustart(register struct disk *du)
{
register struct buf *bp;
#ifdef CMD640
int ctrlr = du->dk_ctrlr_cmd640;
#else
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
int ctrlr = du->dk_ctrlr;
#endif
1993-06-12 14:58:17 +00:00
/* unit already active? */
if (wdutab[du->dk_lunit].b_active)
1993-06-12 14:58:17 +00:00
return;
bp = bufq_first(&drive_queue[du->dk_lunit]);
if (bp == NULL) { /* yes, an assign */
return;
}
/*
* store away which device we came from.
*/
bp->b_driver1 = du;
bufq_remove(&drive_queue[du->dk_lunit], bp);
1993-06-12 14:58:17 +00:00
/* link onto controller queue */
bufq_insert_tail(&wdtab[ctrlr].controller_queue, bp);
1993-06-12 14:58:17 +00:00
/* mark the drive unit as busy */
wdutab[du->dk_lunit].b_active = 1;
1993-06-12 14:58:17 +00:00
}
/*
* Controller startup routine. This does the calculation, and starts
* a single-sector read or write operation. Called to start a transfer,
* or from the interrupt routine to continue a multi-sector transfer.
* RESTRICTIONS:
* 1. The transfer length must be an exact multiple of the sector size.
1993-06-12 14:58:17 +00:00
*/
void
wdstart(int ctrlr)
1993-06-12 14:58:17 +00:00
{
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
register struct disk *du;
1993-06-12 14:58:17 +00:00
register struct buf *bp;
struct diskgeom *lp; /* XXX sic */
long blknum;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
long secpertrk, secpercyl;
1998-05-07 01:15:23 +00:00
u_int lunit;
u_int count;
#ifdef CMD640
int ctrlr_atapi;
if (eide_quirks & Q_CMD640B) {
ctrlr = PRIMARY;
ctrlr_atapi = atapictrlr;
} else {
ctrlr_atapi = ctrlr;
}
#endif
1993-06-12 14:58:17 +00:00
#ifdef ATAPI
if (wdtab[ctrlr].b_active == 2)
wdtab[ctrlr].b_active = 0;
if (wdtab[ctrlr].b_active)
return;
#endif
1993-06-12 14:58:17 +00:00
/* is there a drive for the controller to do a transfer with? */
bp = bufq_first(&wdtab[ctrlr].controller_queue);
if (bp == NULL) {
#ifdef ATAPI
#ifdef CMD640
if (atapi_start && atapi_start (ctrlr_atapi))
wdtab[ctrlr].b_active = 3;
#else
if (atapi_start && atapi_start (ctrlr))
/* mark controller active in ATAPI mode */
wdtab[ctrlr].b_active = 3;
#endif
#endif
return;
}
1993-06-12 14:58:17 +00:00
/* obtain controller and drive information */
lunit = dkunit(bp->b_dev);
du = wddrives[lunit];
1993-06-12 14:58:17 +00:00
/* if not really a transfer, do control operations specially */
if (du->dk_state < OPEN) {
if (du->dk_state != WANTOPEN)
printf("wd%d: wdstart: weird dk_state %d\n",
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_lunit, du->dk_state);
if (wdcontrol(bp) != 0)
printf("wd%d: wdstart: wdcontrol returned nonzero, state = %d\n",
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_lunit, du->dk_state);
1993-06-12 14:58:17 +00:00
return;
}
/* calculate transfer details */
blknum = bp->b_pblkno + du->dk_skip;
#ifdef WDDEBUG
1993-06-12 14:58:17 +00:00
if (du->dk_skip == 0)
printf("wd%d: wdstart: %s %d@%d; map ", lunit,
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
(bp->b_flags & B_READ) ? "read" : "write",
bp->b_bcount, blknum);
1993-06-12 14:58:17 +00:00
else
printf(" %d)%x", du->dk_skip, inb(du->dk_altport));
1993-06-12 14:58:17 +00:00
#endif
lp = &du->dk_dd;
secpertrk = lp->d_nsectors;
secpercyl = lp->d_secpercyl;
if (du->dk_skip == 0) {
du->dk_bc = bp->b_bcount;
if (bp->b_flags & B_BAD
/*
* XXX handle large transfers inefficiently instead
* of crashing on them.
*/
|| howmany(du->dk_bc, DEV_BSIZE) > MAXTRANSFER)
du->dk_flags |= DKFL_SINGLE;
}
if (du->dk_flags & DKFL_SINGLE
&& dsgetbad(bp->b_dev, du->dk_slices) != NULL) {
/* XXX */
u_long ds_offset =
du->dk_slices->dss_slices[dkslice(bp->b_dev)].ds_offset;
blknum = transbad144(dsgetbad(bp->b_dev, du->dk_slices),
blknum - ds_offset) + ds_offset;
1993-06-12 14:58:17 +00:00
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wdtab[ctrlr].b_active = 1; /* mark controller active */
1993-06-12 14:58:17 +00:00
/* if starting a multisector transfer, or doing single transfers */
if (du->dk_skip == 0 || (du->dk_flags & DKFL_SINGLE)) {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
u_int command;
u_int count1;
long cylin, head, sector;
1993-06-12 14:58:17 +00:00
if (du->dk_flags & DKFL_LBA) {
sector = (blknum >> 0) & 0xff;
cylin = (blknum >> 8) & 0xffff;
head = ((blknum >> 24) & 0xf) | WDSD_LBA;
}
else {
cylin = blknum / secpercyl;
head = (blknum % secpercyl) / secpertrk;
sector = blknum % secpertrk;
}
/*
* XXX this looks like an attempt to skip bad sectors
* on write.
*/
if (wdtab[ctrlr].b_errcnt && (bp->b_flags & B_READ) == 0)
du->dk_bc += DEV_BSIZE;
count1 = howmany( du->dk_bc, DEV_BSIZE);
du->dk_flags &= ~DKFL_MULTI;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef B_FORMAT
1993-06-12 14:58:17 +00:00
if (bp->b_flags & B_FORMAT) {
command = WDCC_FORMAT;
count1 = lp->d_nsectors;
sector = lp->d_gap3 - 1; /* + 1 later */
} else
1993-06-12 14:58:17 +00:00
#endif
{
if (du->dk_flags & DKFL_SINGLE) {
command = (bp->b_flags & B_READ)
? WDCC_READ : WDCC_WRITE;
count1 = 1;
du->dk_currentiosize = 1;
} else {
if((du->dk_flags & DKFL_USEDMA) &&
wddma[du->dk_interface].wdd_dmaverify(du->dk_dmacookie,
(void *)((int)bp->b_data +
du->dk_skip * DEV_BSIZE),
du->dk_bc,
bp->b_flags & B_READ)) {
du->dk_flags |= DKFL_DMA;
if( bp->b_flags & B_READ)
command = WDCC_READ_DMA;
else
command = WDCC_WRITE_DMA;
du->dk_currentiosize = count1;
} else if( (count1 > 1) && (du->dk_multi > 1)) {
du->dk_flags |= DKFL_MULTI;
if( bp->b_flags & B_READ) {
command = WDCC_READ_MULTI;
} else {
command = WDCC_WRITE_MULTI;
}
du->dk_currentiosize = du->dk_multi;
if( du->dk_currentiosize > count1)
du->dk_currentiosize = count1;
} else {
if( bp->b_flags & B_READ) {
command = WDCC_READ;
} else {
command = WDCC_WRITE;
}
du->dk_currentiosize = 1;
}
}
1993-06-12 14:58:17 +00:00
}
/*
* XXX this loop may never terminate. The code to handle
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* counting down of retries and eventually failing the i/o
* is in wdintr() and we can't get there from here.
*/
if (wdtest != 0) {
if (--wdtest == 0) {
wdtest = 100;
printf("dummy wdunwedge\n");
wdunwedge(du);
}
}
if ((du->dk_flags & (DKFL_DMA|DKFL_SINGLE)) == DKFL_DMA) {
wddma[du->dk_interface].wdd_dmaprep(du->dk_dmacookie,
(void *)((int)bp->b_data +
du->dk_skip * DEV_BSIZE),
du->dk_bc,
bp->b_flags & B_READ);
}
while (wdcommand(du, cylin, head, sector, count1, command)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
!= 0) {
wderror(bp, du,
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
"wdstart: timeout waiting to give command");
wdunwedge(du);
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef WDDEBUG
printf("cylin %ld head %ld sector %ld addr %x sts %x\n",
cylin, head, sector,
(int)bp->b_data + du->dk_skip * DEV_BSIZE,
inb(du->dk_altport));
1993-06-12 14:58:17 +00:00
#endif
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/*
* Schedule wdtimeout() to wake up after a few seconds. Retrying
* unmarked bad blocks can take 3 seconds! Then it is not good that
* we retry 5 times.
*
* On the first try, we give it 10 seconds, for drives that may need
* to spin up.
*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* XXX wdtimeout() doesn't increment the error count so we may loop
* forever. More seriously, the loop isn't forever but causes a
* crash.
*
* TODO fix b_resid bug elsewhere (fd.c....). Fix short but positive
* counts being discarded after there is an error (in physio I
* think). Discarding them would be OK if the (special) file offset
* was not advanced.
*/
if (wdtab[ctrlr].b_errcnt == 0)
du->dk_timeout = 1 + 10;
else
du->dk_timeout = 1 + 3;
/* if this is a DMA op, start DMA and go away until it's done. */
if ((du->dk_flags & (DKFL_DMA|DKFL_SINGLE)) == DKFL_DMA) {
wddma[du->dk_interface].wdd_dmastart(du->dk_dmacookie);
return;
}
Add support for busmaster DMA on some PCI IDE chipsets. I changed a few bits here and there, mainly renaming wd82371.c to ide_pci.c now that it's supposed to handle different chipsets. It runs on my P6 natoma board with two Maxtor drives, and also on a Fujitsu machine I have at work with an Opti chipset and a Quantum drive. Submitted by:cgull@smoke.marlboro.vt.us <John Hood> Original readme: *** WARNING *** This code has so far been tested on exactly one motherboard with two identical drives known for their good DMA support. This code, in the right circumstances, could corrupt data subtly, silently, and invisibly, in much the same way that older PCI IDE controllers do. It's ALPHA-quality code; there's one or two major gaps in my understanding of PCI IDE still. Don't use this code on any system with data that you care about; it's only good for hack boxes. Expect that any data may be silently and randomly corrupted at any moment. It's a disk driver. It has bugs. Disk drivers with bugs munch data. It's a fact of life. I also *STRONGLY* recommend getting a copy of your chipset's manual and the ATA-2 or ATA-3 spec and making sure that timing modes on your disk drives and IDE controller are being setup correctly by the BIOS-- because the driver makes only the lamest of attempts to do this just now. *** END WARNING *** that said, i happen to think the code is working pretty well... WHAT IT DOES: this code adds support to the wd driver for bus mastering PCI IDE controllers that follow the SFF-8038 standard. (all the bus mastering PCI IDE controllers i've seen so far do follow this standard.) it should provide busmastering on nearly any current P5 or P6 chipset, specifically including any Intel chipset using one of the PIIX south bridges-- this includes the '430FX, '430VX, '430HX, '430TX, '440LX, and (i think) the Orion '450GX chipsets. specific support is also included for the VIA Apollo VP-1 chipset, as it appears in the relabeled "HXPro" incarnation seen on cheap US$70 taiwanese motherboards (that's what's in my development machine). it works out of the box on controllers that do DMA mode2; if my understanding is correct, it'll probably work on Ultra-DMA33 controllers as well. it'll probably work on busmastering IDE controllers in PCI slots, too, but this is an area i am less sure about. it cuts CPU usage considerably and improves drive performance slightly. usable numbers are difficult to come by with existing benchmark tools, but experimentation on my K5-P90 system, with VIA VP-1 chipset and Quantum Fireball 1080 drives, shows that disk i/o on raw partitions imposes perhaps 5% cpu load. cpu load during filesystem i/o drops a lot, from near 100% to anywhere between 30% and 70%. (the improvement may not be as large on an Intel chipset; from what i can tell, the VIA VP-1 may not be very efficient with PCI I/O.) disk performance improves by 5% or 10% with these drives. real, visible, end-user performance improvement on a single user machine is about nil. :) a kernel compile was sped up by a whole three seconds. it *does* feel a bit better-behaved when the system is swapping heavily, but a better disk driver is not the fix for *that* problem. THE CODE: this code is a patch to wd.c and wd82371.c, and associated header files. it should be considered alpha code; more work needs to be done. wd.c has fairly clean patches to add calls to busmaster code, as implemented in wd82371.c and potentially elsewhere (one could imagine, say, a Mac having a different DMA controller). wd82371.c has been considerably reworked: the wddma interface that it presents has been changed (expect more changes), many bugs have been fixed, a new internal interface has been added for supporting different chipsets, and the PCI probe has been considerably extended. the interface between wd82371.c and wd.c is still fairly clean, but i'm not sure it's in the right place. there's a mess of issues around ATA/ATAPI that need to be sorted out, including ATAPI support, CD-ROM support, tape support, LS-120/Zip support, SFF-8038i DMA, UltraDMA, PCI IDE controllers, bus probes, buggy controllers, controller timing setup, drive timing setup, world peace and kitchen sinks. whatever happens with all this and however it gets partitioned, it is fairly clear that wd.c needs some significant rework-- probably a complete rewrite. timing setup on disk controllers is something i've entirely punted on. on my development machine, it appears that the BIOS does at least some of the necessary timing setup. i chose to restrict operation to drives that are already configured for Mode4 PIO and Mode2 multiword DMA, since the timing is essentially the same and many if not most chipsets use the same control registers for DMA and PIO timing. does anybody *know* whether BIOSes are required to do timing setup for DMA modes on drives under their care? error recovery is probably weak. early on in development, i was getting drive errors induced by bugs in the driver; i used these to flush out the worst of the bugs in the driver's error handling, but problems may remain. i haven't got a drive with bad sectors i can watch the driver flail on. complaints about how wd82371.c has been reindented will be ignored until the FreeBSD project has a real style policy, there is a mechanism for individual authors to match it (indent flags or an emacs c-mode or whatever), and it is enforced. if i'm going to use a source style i don't like, it would help if i could figure out what it *is* (style(9) is about half of a policy), and a way to reasonably duplicate it. i ended up wasting a while trying to figure out what the right thing to do was before deciding reformatting the whole thing was the worst possible thing to do, except for all the other possibilities. i have maintained wd.c's indentation; that was not too hard, fortunately. TO INSTALL: my dev box is freebsd 2.2.2 release. fortunately, wd.c is a living fossil, and has diverged very little recently. included in this tarball is a patch file, 'otherdiffs', for all files except wd82371.c, my edited wd82371.c, a patch file, 'wd82371.c-diff-exact', against the 2.2.2 dist of 82371.c, and another patch file, 'wd82371.c-diff-whitespace', generated with diff -b (ignore whitespace). most of you not using 2.2.2 will probably have to use this last patchfile with 'patch --ignore-whitespace'. apply from the kernel source tree root. as far as i can tell, this should apply cleanly on anything from -current back to 2.2.2 and probably back to 2.2.0. you, the kernel hacker, can figure out what to do from here. if you need more specific directions, you probably should not be experimenting with this code yet. to enable DMA support, set flag 0x2000 for that drive in your config file or in userconfig, as you would the 32-bit-PIO flag. the driver will then turn on DMA support if your drive and controller pass its tests. it's a bit picky, probably. on discovering DMA mode failures or disk errors or transfers that the DMA controller can't deal with, the driver will fall back to PIO, so it is wise to setup the flags as if PIO were still important. 'controller wdc0 at isa? port "IO_WD1" bio irq 14 flags 0xa0ffa0ff vector wdintr' should work with nearly any PCI IDE controller. i would *strongly* suggest booting single-user at first, and thrashing the drive a bit while it's still mounted read-only. this should be fairly safe, even if the driver goes completely out to lunch. it might save you a reinstall. one way to tell whether the driver is really using DMA is to check the interrupt count during disk i/o with vmstat; DMA mode will add an extremely low number of interrupts, as compared to even multi-sector PIO. boot -v will give you a copious register dump of timing-related info on Intel and VIAtech chipsets, as well as PIO/DMA mode information on all hard drives. refer to your ATA and chipset documentation to interpret these. WHAT I'D LIKE FROM YOU and THINGS TO TEST: reports. success reports, failure reports, any kind of reports. :) send them to cgull+ide@smoke.marlboro.vt.us. i'd also like to see the kernel messages from various BIOSes (boot -v; dmesg), along with info on the motherboard and BIOS on that machine. i'm especially interested in reports on how this code works on the various Intel chipsets, and whether the register dump works correctly. i'm also interested in hearing about other chipsets. i'm especially interested in hearing success/failure reports for PCI IDE controllers on cards, such as CMD's or Promise's new busmastering IDE controllers. UltraDMA-33 reports. interoperation with ATAPI peripherals-- FreeBSD doesn't work with my old Hitachi IDE CDROM, so i can't tell if I've broken anything. :) i'd especially like to hear how the drive copes in DMA operation on drives with bad sectors. i haven't been able to find any such yet. success/failure reports on older IDE drives with early support for DMA modes-- those introduced between 1.5 and 3 years ago, typically ranging from perhaps 400MB to 1.6GB. failure reports on operation with more than one drive would be appreciated. the driver was developed with two drives on one controller, the worst-case situation, and has been tested with one drive on each controller, but you never know... any reports of messages from the driver during normal operation, especially "reverting to PIO mode", or "dmaverify odd vaddr or length" (the DMA controller is strongly halfword oriented, and i'm curious to know if any FreeBSD usage actually needs misaligned transfers). performance reports. beware that bonnie's CPU usage reporting is useless for IDE drives; the best test i've found has been to run a program that runs a spin loop at an idle priority and reports how many iterations it manages, and even that sometimes produces numbers i don't believe. performance reports of multi-drive operation are especially interesting; my system cannot sustain full throughput on two drives on separate controllers, but that may just be a lame motherboard. THINGS I'M STILL MISSING CLUE ON: * who's responsible for configuring DMA timing modes on IDE drives? the BIOS or the driver? * is there a spec for dealing with Ultra-DMA extensions? * are there any chipsets or with bugs relating to DMA transfer that should be blacklisted? * are there any ATA interfaces that use some other kind of DMA controller in conjunction with standard ATA protocol? FINAL NOTE: after having looked at the ATA-3 spec, all i can say is, "it's ugly". *especially* electrically. the IDE bus is best modeled as an unterminated transmission line, these days. for maximum reliability, keep your IDE cables as short as possible and as few as possible. from what i can tell, most current chipsets have both IDE ports wired into a single buss, to a greater or lesser degree. using two cables means you double the length of this bus. SCSI may have its warts, but at least the basic analog design of the bus is still somewhat reasonable. IDE passed beyond the veil two years ago. --John Hood, cgull@smoke.marlboro.vt.us
1997-07-29 12:57:25 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* If this is a read operation, just go away until it's done. */
if (bp->b_flags & B_READ)
return;
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Ready to send data? */
if (wdwait(du, WDCS_READY | WDCS_SEEKCMPLT | WDCS_DRQ, TIMEOUT) < 0) {
wderror(bp, du, "wdstart: timeout waiting for DRQ");
/*
* XXX what do we do now? If we've just issued the command,
* then we can treat this failure the same as a command
* failure. But if we are continuing a multi-sector write,
* the command was issued ages ago, so we can't simply
* restart it.
*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* XXX we waste a lot of time unnecessarily translating block
* numbers to cylin/head/sector for continued i/o's.
*/
1993-06-12 14:58:17 +00:00
}
count = 1;
if( du->dk_flags & DKFL_MULTI) {
count = howmany(du->dk_bc, DEV_BSIZE);
if( count > du->dk_multi)
count = du->dk_multi;
if( du->dk_currentiosize > count)
du->dk_currentiosize = count;
}
1995-04-24 05:09:53 +00:00
if (du->dk_flags & DKFL_32BIT)
outsl(du->dk_port + wd_data,
(void *)((int)bp->b_data + du->dk_skip * DEV_BSIZE),
(count * DEV_BSIZE) / sizeof(long));
else
outsw(du->dk_port + wd_data,
(void *)((int)bp->b_data + du->dk_skip * DEV_BSIZE),
(count * DEV_BSIZE) / sizeof(short));
du->dk_bc -= DEV_BSIZE * count;
1993-06-12 14:58:17 +00:00
}
/* Interrupt routine for the controller. Acknowledge the interrupt, check for
* errors on the current operation, mark it done if necessary, and start
* the next request. Also check for a partially done transfer, and
* continue with the next chunk if so.
*/
1993-06-12 14:58:17 +00:00
void
wdintr(void *unitnum)
1993-06-12 14:58:17 +00:00
{
register struct disk *du;
register struct buf *bp;
int dmastat = 0; /* Shut up GCC */
int unit = (int)unitnum;
1993-06-12 14:58:17 +00:00
#ifdef CMD640
int ctrlr_atapi;
if (eide_quirks & Q_CMD640B) {
unit = PRIMARY;
ctrlr_atapi = atapictrlr;
} else {
ctrlr_atapi = unit;
}
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if (wdtab[unit].b_active == 2)
return; /* intr in wdflushirq() */
if (!wdtab[unit].b_active) {
#ifdef WDDEBUG
/*
* These happen mostly because the power-mgt part of the
* bios shuts us down, and we just manage to see the
* interrupt from the "SLEEP" command.
*/
printf("wdc%d: extra interrupt\n", unit);
#endif
1993-06-12 14:58:17 +00:00
return;
}
#ifdef ATAPI
if (wdtab[unit].b_active == 3) {
/* process an ATAPI interrupt */
#ifdef CMD640
if (atapi_intr && atapi_intr (ctrlr_atapi))
#else
if (atapi_intr && atapi_intr (unit))
#endif
/* ATAPI op continues */
return;
/* controller is free, start new op */
wdtab[unit].b_active = 0;
wdstart (unit);
return;
}
#endif
bp = bufq_first(&wdtab[unit].controller_queue);
du = wddrives[dkunit(bp->b_dev)];
/* finish off DMA */
if (du->dk_flags & (DKFL_DMA|DKFL_USEDMA)) {
/* XXX SMP boxes sometimes generate an early intr. Why? */
if ((wddma[du->dk_interface].wdd_dmastatus(du->dk_dmacookie) & WDDS_INTERRUPT)
!= 0)
dmastat = wddma[du->dk_interface].wdd_dmadone(du->dk_dmacookie);
}
du->dk_timeout = 0;
/* check drive status/failure */
if (wdwait(du, 0, TIMEOUT) < 0) {
wderror(bp, du, "wdintr: timeout waiting for status");
du->dk_status |= WDCS_ERR; /* XXX */
}
1993-06-12 14:58:17 +00:00
/* is it not a transfer, but a control operation? */
if (du->dk_state < OPEN) {
wdtab[unit].b_active = 0;
switch (wdcontrol(bp)) {
case 0:
return;
case 1:
wdstart(unit);
return;
case 2:
goto done;
}
1993-06-12 14:58:17 +00:00
}
/* have we an error? */
if ((du->dk_status & (WDCS_ERR | WDCS_ECCCOR))
|| (((du->dk_flags & (DKFL_DMA|DKFL_SINGLE)) == DKFL_DMA)
&& dmastat != WDDS_INTERRUPT)) {
unsigned int errstat;
oops:
/*
* XXX bogus inb() here
*/
errstat = inb(du->dk_port + wd_error);
if(((du->dk_flags & (DKFL_DMA|DKFL_SINGLE)) == DKFL_DMA) &&
(errstat & WDERR_ABORT)) {
wderror(bp, du, "reverting to PIO mode");
du->dk_flags &= ~DKFL_USEDMA;
} else if((du->dk_flags & DKFL_MULTI) &&
(errstat & WDERR_ABORT)) {
wderror(bp, du, "reverting to non-multi sector mode");
du->dk_multi = 1;
}
if (!(du->dk_status & (WDCS_ERR | WDCS_ECCCOR)) &&
(((du->dk_flags & (DKFL_DMA|DKFL_SINGLE)) == DKFL_DMA) &&
(dmastat != WDDS_INTERRUPT)))
printf("wd%d: DMA failure, DMA status %b\n",
du->dk_lunit, dmastat, WDDS_BITS);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef WDDEBUG
wderror(bp, du, "wdintr");
1993-06-12 14:58:17 +00:00
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if ((du->dk_flags & DKFL_SINGLE) == 0) {
du->dk_flags |= DKFL_ERROR;
1993-06-12 14:58:17 +00:00
goto outt;
}
#ifdef B_FORMAT
if (bp->b_flags & B_FORMAT) {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
bp->b_error = EIO;
1993-06-12 14:58:17 +00:00
bp->b_flags |= B_ERROR;
goto done;
}
#endif
if (du->dk_flags & DKFL_BADSCAN) {
bp->b_error = EIO;
bp->b_flags |= B_ERROR;
} else if (du->dk_status & WDCS_ERR) {
if (++wdtab[unit].b_errcnt < RETRIES) {
wdtab[unit].b_active = 0;
1993-06-12 14:58:17 +00:00
} else {
wderror(bp, du, "hard error");
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
bp->b_error = EIO;
1993-06-12 14:58:17 +00:00
bp->b_flags |= B_ERROR; /* flag the error */
}
} else if (du->dk_status & WDCS_ECCCOR)
wderror(bp, du, "soft ecc");
1993-06-12 14:58:17 +00:00
}
/*
* If this was a successful read operation, fetch the data.
*/
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if (((bp->b_flags & (B_READ | B_ERROR)) == B_READ)
&& !((du->dk_flags & (DKFL_DMA|DKFL_SINGLE)) == DKFL_DMA)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
&& wdtab[unit].b_active) {
1998-05-07 01:15:23 +00:00
u_int chk, dummy, multisize;
multisize = chk = du->dk_currentiosize * DEV_BSIZE;
if( du->dk_bc < chk) {
chk = du->dk_bc;
if( ((chk + DEV_BSIZE - 1) / DEV_BSIZE) < du->dk_currentiosize) {
du->dk_currentiosize = (chk + DEV_BSIZE - 1) / DEV_BSIZE;
multisize = du->dk_currentiosize * DEV_BSIZE;
}
}
1995-04-24 05:09:53 +00:00
1993-06-12 14:58:17 +00:00
/* ready to receive data? */
if ((du->dk_status & (WDCS_READY | WDCS_SEEKCMPLT | WDCS_DRQ))
!= (WDCS_READY | WDCS_SEEKCMPLT | WDCS_DRQ))
wderror(bp, du, "wdintr: read intr arrived early");
if (wdwait(du, WDCS_READY | WDCS_SEEKCMPLT | WDCS_DRQ, TIMEOUT) != 0) {
wderror(bp, du, "wdintr: read error detected late");
goto oops;
}
1993-06-12 14:58:17 +00:00
/* suck in data */
if( du->dk_flags & DKFL_32BIT)
insl(du->dk_port + wd_data,
(void *)((int)bp->b_data + du->dk_skip * DEV_BSIZE),
chk / sizeof(long));
else
insw(du->dk_port + wd_data,
(void *)((int)bp->b_data + du->dk_skip * DEV_BSIZE),
chk / sizeof(short));
du->dk_bc -= chk;
/* XXX for obsolete fractional sector reads. */
while (chk < multisize) {
insw(du->dk_port + wd_data, &dummy, 1);
chk += sizeof(short);
}
1993-06-12 14:58:17 +00:00
}
/* final cleanup on DMA */
if (((bp->b_flags & B_ERROR) == 0)
&& ((du->dk_flags & (DKFL_DMA|DKFL_SINGLE)) == DKFL_DMA)
&& wdtab[unit].b_active) {
int iosize;
iosize = du->dk_currentiosize * DEV_BSIZE;
du->dk_bc -= iosize;
}
outt:
if (wdtab[unit].b_active) {
1993-06-12 14:58:17 +00:00
if ((bp->b_flags & B_ERROR) == 0) {
du->dk_skip += du->dk_currentiosize;/* add to successful sectors */
if (wdtab[unit].b_errcnt)
wderror(bp, du, "soft error");
wdtab[unit].b_errcnt = 0;
1993-06-12 14:58:17 +00:00
/* see if more to transfer */
if (du->dk_bc > 0 && (du->dk_flags & DKFL_ERROR) == 0) {
if( (du->dk_flags & DKFL_SINGLE) ||
((bp->b_flags & B_READ) == 0)) {
wdtab[unit].b_active = 0;
wdstart(unit);
} else {
du->dk_timeout = 1 + 3;
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return; /* next chunk is started */
} else if ((du->dk_flags & (DKFL_SINGLE | DKFL_ERROR))
== DKFL_ERROR) {
1993-06-12 14:58:17 +00:00
du->dk_skip = 0;
du->dk_flags &= ~DKFL_ERROR;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_flags |= DKFL_SINGLE;
wdtab[unit].b_active = 0;
wdstart(unit);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return; /* redo xfer sector by sector */
1993-06-12 14:58:17 +00:00
}
}
done: ;
1993-06-12 14:58:17 +00:00
/* done with this transfer, with or without error */
du->dk_flags &= ~(DKFL_SINGLE|DKFL_DMA);
bufq_remove( &wdtab[unit].controller_queue, bp);
wdtab[unit].b_errcnt = 0;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
bp->b_resid = bp->b_bcount - du->dk_skip * DEV_BSIZE;
wdutab[du->dk_lunit].b_active = 0;
du->dk_skip = 0;
1993-06-12 14:58:17 +00:00
/* Update device stats */
devstat_end_transaction(&du->dk_stats,
bp->b_bcount - bp->b_resid,
DEVSTAT_TAG_NONE,
(bp->b_flags & B_READ) ? DEVSTAT_READ : DEVSTAT_WRITE);
biodone(bp);
}
1993-06-12 14:58:17 +00:00
/* controller idle */
wdtab[unit].b_active = 0;
1993-06-12 14:58:17 +00:00
/* anything more on drive queue? */
wdustart(du);
1993-06-12 14:58:17 +00:00
/* anything more for controller to do? */
#ifndef ATAPI
/* This is not valid in ATAPI mode. */
if (bufq_first(&wdtab[unit].controller_queue) != NULL)
#endif
wdstart(unit);
1993-06-12 14:58:17 +00:00
}
/*
* Initialize a drive.
*/
int
wdopen(dev_t dev, int flags, int fmt, struct proc *p)
{
register unsigned int lunit;
1993-06-12 14:58:17 +00:00
register struct disk *du;
int error;
1993-06-12 14:58:17 +00:00
lunit = dkunit(dev);
if (lunit >= NWD || dktype(dev) != 0)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (ENXIO);
du = wddrives[lunit];
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if (du == NULL)
return (ENXIO);
/* Finish flushing IRQs left over from wdattach(). */
#ifdef CMD640
if (wdtab[du->dk_ctrlr_cmd640].b_active == 2)
wdtab[du->dk_ctrlr_cmd640].b_active = 0;
#else
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if (wdtab[du->dk_ctrlr].b_active == 2)
wdtab[du->dk_ctrlr].b_active = 0;
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_flags &= ~DKFL_BADSCAN;
/* spin waiting for anybody else reading the disk label */
while (du->dk_flags & DKFL_LABELLING)
tsleep((caddr_t)&du->dk_flags, PZERO - 1, "wdopen", 1);
#if 1
wdsleep(du->dk_ctrlr, "wdopn1");
du->dk_flags |= DKFL_LABELLING;
du->dk_state = WANTOPEN;
{
struct disklabel label;
bzero(&label, sizeof label);
label.d_secsize = du->dk_dd.d_secsize;
label.d_nsectors = du->dk_dd.d_nsectors;
label.d_ntracks = du->dk_dd.d_ntracks;
label.d_ncylinders = du->dk_dd.d_ncylinders;
label.d_secpercyl = du->dk_dd.d_secpercyl;
label.d_secperunit = du->dk_dd.d_secperunit;
error = dsopen("wd", dev, fmt, 0, &du->dk_slices, &label, wdstrategy1,
(ds_setgeom_t *)NULL, &wd_cdevsw);
}
du->dk_flags &= ~DKFL_LABELLING;
wdsleep(du->dk_ctrlr, "wdopn2");
return (error);
#else
1993-06-12 14:58:17 +00:00
if ((du->dk_flags & DKFL_BSDLABEL) == 0) {
/*
* wdtab[ctrlr].b_active != 0 implies XXX applicable now ??
* drive_queue[lunit].b_act == NULL (?) XXX applicable now ??
* so the following guards most things (until the next i/o).
* It doesn't guard against a new i/o starting and being
* affected by the label being changed. Sigh.
*/
wdsleep(du->dk_ctrlr, "wdopn1");
du->dk_flags |= DKFL_LABELLING;
du->dk_state = WANTOPEN;
error = dsinit(dkmodpart(dev, RAW_PART), wdstrategy,
&du->dk_dd, &du->dk_slices);
if (error != 0) {
du->dk_flags &= ~DKFL_LABELLING;
return (error);
}
/* XXX check value returned by wdwsetctlr(). */
wdwsetctlr(du);
if (dkslice(dev) == WHOLE_DISK_SLICE) {
dsopen(dev, fmt, du->dk_slices);
return (0);
}
/*
* Read label using RAW_PART partition.
*
* If the drive has an MBR, then the current geometry (from
* wdgetctlr()) is used to read it; then the BIOS/DOS
* geometry is inferred and used to read the label off the
* 'c' partition. Otherwise the label is read using the
* current geometry. The label gives the final geometry.
* If bad sector handling is enabled, then this geometry
* is used to read the bad sector table. The geometry
* changes occur inside readdisklabel() and are propagated
* to the driver by resetting the state machine.
*
* XXX can now handle changes directly since dsinit() doesn't
* do too much.
*/
msg = correct_readdisklabel(dkmodpart(dev, RAW_PART), wdstrategy,
&du->dk_dd);
/* XXX check value returned by wdwsetctlr(). */
wdwsetctlr(du);
if (msg == NULL && du->dk_dd.d_flags & D_BADSECT)
msg = readbad144(dkmodpart(dev, RAW_PART), wdstrategy,
&du->dk_dd, &du->dk_bad);
du->dk_flags &= ~DKFL_LABELLING;
if (msg != NULL) {
log(LOG_WARNING, "wd%d: cannot find label (%s)\n",
lunit, msg);
if (part != RAW_PART)
return (EINVAL); /* XXX needs translation */
/*
* Soon return. This is how slices without labels
* are allowed. They only work on the raw partition.
*/
1993-06-12 14:58:17 +00:00
} else {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
unsigned long newsize, offset, size;
#if 0
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/*
* Force RAW_PART partition to be the whole disk.
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
*/
offset = du->dk_dd.d_partitions[RAW_PART].p_offset;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if (offset != 0) {
printf(
"wd%d: changing offset of '%c' partition from %lu to 0\n",
du->dk_lunit, 'a' + RAW_PART, offset);
du->dk_dd.d_partitions[RAW_PART].p_offset = 0;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
}
size = du->dk_dd.d_partitions[RAW_PART].p_size;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
newsize = du->dk_dd.d_secperunit; /* XXX */
if (size != newsize) {
printf(
"wd%d: changing size of '%c' partition from %lu to %lu\n",
du->dk_lunit, 'a' + RAW_PART, size,
newsize);
du->dk_dd.d_partitions[RAW_PART].p_size
= newsize;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
}
#endif
1993-06-12 14:58:17 +00:00
}
/* Pick up changes made by readdisklabel(). */
wdsleep(du->dk_ctrlr, "wdopn2");
du->dk_state = WANTOPEN;
}
/*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* Warn if a partion is opened that overlaps another partition which
* is open unless one is the "raw" partition (whole disk).
*/
if ((du->dk_openpart & mask) == 0 && part != RAW_PART) {
1993-06-12 14:58:17 +00:00
int start, end;
pp = &du->dk_dd.d_partitions[part];
start = pp->p_offset;
end = pp->p_offset + pp->p_size;
for (pp = du->dk_dd.d_partitions;
pp < &du->dk_dd.d_partitions[du->dk_dd.d_npartitions];
pp++) {
if (pp->p_offset + pp->p_size <= start ||
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
pp->p_offset >= end)
continue;
if (pp - du->dk_dd.d_partitions == RAW_PART)
continue;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if (du->dk_openpart
& (1 << (pp - du->dk_dd.d_partitions)))
log(LOG_WARNING,
"wd%d%c: overlaps open partition (%c)\n",
lunit, part + 'a',
pp - du->dk_dd.d_partitions + 'a');
}
}
if (part >= du->dk_dd.d_npartitions && part != RAW_PART)
return (ENXIO);
1993-06-12 14:58:17 +00:00
dsopen(dev, fmt, du->dk_slices);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
1993-06-12 14:58:17 +00:00
return (0);
#endif
1993-06-12 14:58:17 +00:00
}
/*
* Implement operations other than read/write.
* Called from wdstart or wdintr during opens and formats.
* Uses finite-state-machine to track progress of operation in progress.
* Returns 0 if operation still in progress, 1 if completed, 2 if error.
1993-06-12 14:58:17 +00:00
*/
static int
wdcontrol(register struct buf *bp)
{
register struct disk *du;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
int ctrlr;
1993-06-12 14:58:17 +00:00
du = wddrives[dkunit(bp->b_dev)];
#ifdef CMD640
ctrlr = du->dk_ctrlr_cmd640;
#else
ctrlr = du->dk_ctrlr;
#endif
switch (du->dk_state) {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
case WANTOPEN:
tryagainrecal:
wdtab[ctrlr].b_active = 1;
if (wdcommand(du, 0, 0, 0, 0, WDCC_RESTORE | WD_STEP) != 0) {
wderror(bp, du, "wdcontrol: wdcommand failed");
goto maybe_retry;
}
du->dk_state = RECAL;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (0);
1993-06-12 14:58:17 +00:00
case RECAL:
if (du->dk_status & WDCS_ERR || wdsetctlr(du) != 0) {
wderror(bp, du, "wdcontrol: recal failed");
maybe_retry:
if (du->dk_status & WDCS_ERR)
wdunwedge(du);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_state = WANTOPEN;
if (++wdtab[ctrlr].b_errcnt < RETRIES)
1993-06-12 14:58:17 +00:00
goto tryagainrecal;
bp->b_error = ENXIO; /* XXX needs translation */
bp->b_flags |= B_ERROR;
return (2);
1993-06-12 14:58:17 +00:00
}
wdtab[ctrlr].b_errcnt = 0;
1993-06-12 14:58:17 +00:00
du->dk_state = OPEN;
/*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* The rest of the initialization can be done by normal
* means.
1993-06-12 14:58:17 +00:00
*/
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (1);
1993-06-12 14:58:17 +00:00
}
panic("wdcontrol");
return (2);
1993-06-12 14:58:17 +00:00
}
/*
* Wait uninterruptibly until controller is not busy, then send it a command.
* The wait usually terminates immediately because we waited for the previous
* command to terminate.
1993-06-12 14:58:17 +00:00
*/
static int
wdcommand(struct disk *du, u_int cylinder, u_int head, u_int sector,
u_int count, u_int command)
{
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
u_int wdc;
1993-06-12 14:58:17 +00:00
wdc = du->dk_port;
if (du->cfg_flags & WDOPT_SLEEPHACK) {
/* OK, so the APM bios has put the disk into SLEEP mode,
* how can we tell ? Uhm, we can't. There is no
* standardized way of finding out, and the only way to
* wake it up is to reset it. Bummer.
*
* All the many and varied versions of the IDE/ATA standard
* explicitly tells us not to look at these registers if
* the disk is in SLEEP mode. Well, too bad really, we
* have to find out if it's in sleep mode before we can
* avoid reading the registers.
*
* I have reason to belive that most disks will return
* either 0xff or 0x00 in all but the status register
* when in SLEEP mode, but I have yet to see one return
* 0x00, so we don't check for that yet.
*
* The check for WDCS_BUSY is for the case where the
* bios spins up the disk for us, but doesn't initialize
* it correctly /phk
*/
if(inb(wdc + wd_precomp) + inb(wdc + wd_cyl_lo) +
inb(wdc + wd_cyl_hi) + inb(wdc + wd_sdh) +
inb(wdc + wd_sector) + inb(wdc + wd_seccnt) == 6 * 0xff) {
if (bootverbose)
printf("wd(%d,%d): disk aSLEEP\n",
du->dk_ctrlr, du->dk_unit);
wdunwedge(du);
} else if(inb(wdc + wd_status) == WDCS_BUSY) {
if (bootverbose)
printf("wd(%d,%d): disk is BUSY\n",
du->dk_ctrlr, du->dk_unit);
wdunwedge(du);
}
}
if (wdwait(du, 0, TIMEOUT) < 0)
return (1);
if( command == WDCC_FEATURES) {
outb(wdc + wd_features, count);
if ( count == WDFEA_SETXFER )
outb(wdc + wd_seccnt, sector);
} else {
outb(wdc + wd_precomp, du->dk_dd.d_precompcyl / 4);
outb(wdc + wd_cyl_lo, cylinder);
outb(wdc + wd_cyl_hi, cylinder >> 8);
outb(wdc + wd_sdh, WDSD_IBM | (du->dk_unit << 4) | head);
if (head & WDSD_LBA)
outb(wdc + wd_sector, sector);
else
outb(wdc + wd_sector, sector + 1);
outb(wdc + wd_seccnt, count);
}
if (wdwait(du, (command == WDCC_DIAGNOSE || command == WDCC_IDC)
? 0 : WDCS_READY, TIMEOUT) < 0)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (1);
outb(wdc + wd_command, command);
return (0);
1993-06-12 14:58:17 +00:00
}
static void
wdsetmulti(struct disk *du)
{
/*
* The config option flags low 8 bits define the maximum multi-block
* transfer size. If the user wants the maximum that the drive
* is capable of, just set the low bits of the config option to
* 0x00ff.
*/
if ((du->cfg_flags & WDOPT_MULTIMASK) != 0 && (du->dk_multi > 1)) {
int configval = du->cfg_flags & WDOPT_MULTIMASK;
du->dk_multi = min(du->dk_multi, configval);
if (wdcommand(du, 0, 0, 0, du->dk_multi, WDCC_SET_MULTI)) {
du->dk_multi = 1;
} else {
if (wdwait(du, WDCS_READY, TIMEOUT) < 0) {
du->dk_multi = 1;
}
}
} else {
du->dk_multi = 1;
}
}
1993-06-12 14:58:17 +00:00
/*
* issue IDC to drive to tell it just what geometry it is to be.
*/
static int
wdsetctlr(struct disk *du)
{
int error = 0;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef WDDEBUG
printf("wd(%d,%d): wdsetctlr: C %lu H %lu S %lu\n",
du->dk_ctrlr, du->dk_unit,
du->dk_dd.d_ncylinders, du->dk_dd.d_ntracks,
du->dk_dd.d_nsectors);
#endif
if (!(du->dk_flags & DKFL_LBA)) {
if (du->dk_dd.d_ntracks == 0 || du->dk_dd.d_ntracks > 16) {
struct wdparams *wp;
printf("wd%d: can't handle %lu heads from partition table ",
du->dk_lunit, du->dk_dd.d_ntracks);
/* obtain parameters */
wp = &du->dk_params;
if (wp->wdp_heads > 0 && wp->wdp_heads <= 16) {
printf("(controller value %u restored)\n",
wp->wdp_heads);
du->dk_dd.d_ntracks = wp->wdp_heads;
}
else {
printf("(truncating to 16)\n");
du->dk_dd.d_ntracks = 16;
}
}
if (du->dk_dd.d_nsectors == 0 || du->dk_dd.d_nsectors > 255) {
printf("wd%d: cannot handle %lu sectors (max 255)\n",
du->dk_lunit, du->dk_dd.d_nsectors);
error = 1;
}
if (error) {
#ifdef CMD640
wdtab[du->dk_ctrlr_cmd640].b_errcnt += RETRIES;
#else
wdtab[du->dk_ctrlr].b_errcnt += RETRIES;
#endif
return (1);
}
if (wdcommand(du, du->dk_dd.d_ncylinders, du->dk_dd.d_ntracks - 1, 0,
du->dk_dd.d_nsectors, WDCC_IDC) != 0
|| wdwait(du, WDCS_READY, TIMEOUT) < 0) {
wderror((struct buf *)NULL, du, "wdsetctlr failed");
return (1);
}
}
wdsetmulti(du);
#ifdef NOTYET
/* set read caching and write caching */
wdcommand(du, 0, 0, 0, WDFEA_RCACHE, WDCC_FEATURES);
wdwait(du, WDCS_READY, TIMEOUT);
wdcommand(du, 0, 0, 0, WDFEA_WCACHE, WDCC_FEATURES);
wdwait(du, WDCS_READY, TIMEOUT);
#endif
return (0);
}
1993-06-12 14:58:17 +00:00
#if 0
/*
* Wait until driver is inactive, then set up controller.
*/
static int
wdwsetctlr(struct disk *du)
{
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
int stat;
int x;
1993-06-12 14:58:17 +00:00
wdsleep(du->dk_ctrlr, "wdwset");
1993-06-12 14:58:17 +00:00
x = splbio();
stat = wdsetctlr(du);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wdflushirq(du, x);
1993-06-12 14:58:17 +00:00
splx(x);
return (stat);
1993-06-12 14:58:17 +00:00
}
#endif
1993-06-12 14:58:17 +00:00
/*
* gross little callback function for wdddma interface. returns 1 for
* success, 0 for failure.
*/
static int
wdsetmode(int mode, void *wdinfo)
{
int i;
struct disk *du;
du = wdinfo;
if (bootverbose)
printf("wd%d: wdsetmode() setting transfer mode to %02x\n",
du->dk_lunit, mode);
i = wdcommand(du, 0, 0, mode, WDFEA_SETXFER,
WDCC_FEATURES) == 0 &&
wdwait(du, WDCS_READY, TIMEOUT) == 0;
return i;
}
1993-06-12 14:58:17 +00:00
/*
* issue READP to drive to ask it what it is.
*/
static int
wdgetctlr(struct disk *du)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
{
int i;
char tb[DEV_BSIZE], tb2[DEV_BSIZE];
struct wdparams *wp = NULL;
u_long flags = du->cfg_flags;
again:
if (wdcommand(du, 0, 0, 0, 0, WDCC_READP) != 0
|| wdwait(du, WDCS_READY | WDCS_SEEKCMPLT | WDCS_DRQ, TIMEOUT) != 0) {
/*
* if we failed on the second try, assume non-32bit
*/
if( du->dk_flags & DKFL_32BIT)
goto failed;
1995-04-24 05:09:53 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* XXX need to check error status after final transfer. */
/*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* Old drives don't support WDCC_READP. Try a seek to 0.
* Some IDE controllers return trash if there is no drive
* attached, so first test that the drive can be selected.
* This also avoids long waits for nonexistent drives.
*/
if (wdwait(du, 0, TIMEOUT) < 0)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (1);
outb(du->dk_port + wd_sdh, WDSD_IBM | (du->dk_unit << 4));
DELAY(5000); /* usually unnecessary; drive select is fast */
/*
* Do this twice: may get a false WDCS_READY the first time.
*/
inb(du->dk_port + wd_status);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
if ((inb(du->dk_port + wd_status) & (WDCS_BUSY | WDCS_READY))
!= WDCS_READY
|| wdcommand(du, 0, 0, 0, 0, WDCC_RESTORE | WD_STEP) != 0
|| wdwait(du, WDCS_READY | WDCS_SEEKCMPLT, TIMEOUT) != 0)
return (1);
Load the kernel symbol table in the boot loader and not at compile time. (Boot with the -D flag if you want symbols.) Make it easier to extend `struct bootinfo' without losing either forwards or backwards compatibility. ddb_aout.c: Get the symbol table from wherever the loader put it. Nuke db_symtab[SYMTAB_SPACE]. boot.c: Enable loading of symbols. Align them on a page boundary. Add printfs about the symbol table sizes. Pass the memory sizes to the kernel. Fix initialization of `unit' (it got moved out of the loop). Fix adding the bss size (it got moved inside an ifdef). Initialize serial port when RB_SERIAL is toggled on. Fix comments. Clean up formatting of recently added code. io.c: Clean up formatting of recently added code. netboot/main.c, machdep.c, wd.c: Change names of bootinfo fields. LINT: Nuke SYMTAB_SPACE. Fix comment about DODUMP. Makefile.i386: Nuke use of dbsym. Exclude gcc symbols from kernel unless compiling with -g. Remove unused macro. Fix comments and formatting. genassym.c: Generate defines for some new bootinfo fields. Change names of old ones. locore.s: Copy only the valid part of the `struct bootinfo' passed by the loader. Reserve space for symbol table, if any. machdep.c: Check the memory sizes passed by the loader, if any. Don't use them yet. bootinfo.h: Add a size field so that we can resolve some mismatches between the loader bootinfo and the kernel boot info. The version number is not so good for this because of historical botches and because it's harder to maintain. Add memory size and symbol table fields. Change the names of everything. Hacks to save a few bytes: asm.S, boot.c, boot2.S: Replace `ouraddr' by `(BOOTSEG << 4)'. boot.c: Don't statically initialize `loadflags' to 0. Disable the "REDUNDANT" code that skips the BIOS variables. Eliminate `total'. Combine some more printfs. boot.h, disk.c, io.c, table.c: Move all statically initialzed data to table.c. io.c: Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
if (du->dk_unit == bootinfo.bi_n_bios_used) {
du->dk_dd.d_secsize = DEV_BSIZE;
1995-04-24 05:09:53 +00:00
du->dk_dd.d_nsectors =
Load the kernel symbol table in the boot loader and not at compile time. (Boot with the -D flag if you want symbols.) Make it easier to extend `struct bootinfo' without losing either forwards or backwards compatibility. ddb_aout.c: Get the symbol table from wherever the loader put it. Nuke db_symtab[SYMTAB_SPACE]. boot.c: Enable loading of symbols. Align them on a page boundary. Add printfs about the symbol table sizes. Pass the memory sizes to the kernel. Fix initialization of `unit' (it got moved out of the loop). Fix adding the bss size (it got moved inside an ifdef). Initialize serial port when RB_SERIAL is toggled on. Fix comments. Clean up formatting of recently added code. io.c: Clean up formatting of recently added code. netboot/main.c, machdep.c, wd.c: Change names of bootinfo fields. LINT: Nuke SYMTAB_SPACE. Fix comment about DODUMP. Makefile.i386: Nuke use of dbsym. Exclude gcc symbols from kernel unless compiling with -g. Remove unused macro. Fix comments and formatting. genassym.c: Generate defines for some new bootinfo fields. Change names of old ones. locore.s: Copy only the valid part of the `struct bootinfo' passed by the loader. Reserve space for symbol table, if any. machdep.c: Check the memory sizes passed by the loader, if any. Don't use them yet. bootinfo.h: Add a size field so that we can resolve some mismatches between the loader bootinfo and the kernel boot info. The version number is not so good for this because of historical botches and because it's harder to maintain. Add memory size and symbol table fields. Change the names of everything. Hacks to save a few bytes: asm.S, boot.c, boot2.S: Replace `ouraddr' by `(BOOTSEG << 4)'. boot.c: Don't statically initialize `loadflags' to 0. Disable the "REDUNDANT" code that skips the BIOS variables. Eliminate `total'. Combine some more printfs. boot.h, disk.c, io.c, table.c: Move all statically initialzed data to table.c. io.c: Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
bootinfo.bi_bios_geom[du->dk_unit] & 0xff;
1995-04-24 05:09:53 +00:00
du->dk_dd.d_ntracks =
Load the kernel symbol table in the boot loader and not at compile time. (Boot with the -D flag if you want symbols.) Make it easier to extend `struct bootinfo' without losing either forwards or backwards compatibility. ddb_aout.c: Get the symbol table from wherever the loader put it. Nuke db_symtab[SYMTAB_SPACE]. boot.c: Enable loading of symbols. Align them on a page boundary. Add printfs about the symbol table sizes. Pass the memory sizes to the kernel. Fix initialization of `unit' (it got moved out of the loop). Fix adding the bss size (it got moved inside an ifdef). Initialize serial port when RB_SERIAL is toggled on. Fix comments. Clean up formatting of recently added code. io.c: Clean up formatting of recently added code. netboot/main.c, machdep.c, wd.c: Change names of bootinfo fields. LINT: Nuke SYMTAB_SPACE. Fix comment about DODUMP. Makefile.i386: Nuke use of dbsym. Exclude gcc symbols from kernel unless compiling with -g. Remove unused macro. Fix comments and formatting. genassym.c: Generate defines for some new bootinfo fields. Change names of old ones. locore.s: Copy only the valid part of the `struct bootinfo' passed by the loader. Reserve space for symbol table, if any. machdep.c: Check the memory sizes passed by the loader, if any. Don't use them yet. bootinfo.h: Add a size field so that we can resolve some mismatches between the loader bootinfo and the kernel boot info. The version number is not so good for this because of historical botches and because it's harder to maintain. Add memory size and symbol table fields. Change the names of everything. Hacks to save a few bytes: asm.S, boot.c, boot2.S: Replace `ouraddr' by `(BOOTSEG << 4)'. boot.c: Don't statically initialize `loadflags' to 0. Disable the "REDUNDANT" code that skips the BIOS variables. Eliminate `total'. Combine some more printfs. boot.h, disk.c, io.c, table.c: Move all statically initialzed data to table.c. io.c: Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
((bootinfo.bi_bios_geom[du->dk_unit] >> 8) & 0xff)
+ 1;
/* XXX Why 2 ? */
1995-04-24 05:09:53 +00:00
du->dk_dd.d_ncylinders =
Load the kernel symbol table in the boot loader and not at compile time. (Boot with the -D flag if you want symbols.) Make it easier to extend `struct bootinfo' without losing either forwards or backwards compatibility. ddb_aout.c: Get the symbol table from wherever the loader put it. Nuke db_symtab[SYMTAB_SPACE]. boot.c: Enable loading of symbols. Align them on a page boundary. Add printfs about the symbol table sizes. Pass the memory sizes to the kernel. Fix initialization of `unit' (it got moved out of the loop). Fix adding the bss size (it got moved inside an ifdef). Initialize serial port when RB_SERIAL is toggled on. Fix comments. Clean up formatting of recently added code. io.c: Clean up formatting of recently added code. netboot/main.c, machdep.c, wd.c: Change names of bootinfo fields. LINT: Nuke SYMTAB_SPACE. Fix comment about DODUMP. Makefile.i386: Nuke use of dbsym. Exclude gcc symbols from kernel unless compiling with -g. Remove unused macro. Fix comments and formatting. genassym.c: Generate defines for some new bootinfo fields. Change names of old ones. locore.s: Copy only the valid part of the `struct bootinfo' passed by the loader. Reserve space for symbol table, if any. machdep.c: Check the memory sizes passed by the loader, if any. Don't use them yet. bootinfo.h: Add a size field so that we can resolve some mismatches between the loader bootinfo and the kernel boot info. The version number is not so good for this because of historical botches and because it's harder to maintain. Add memory size and symbol table fields. Change the names of everything. Hacks to save a few bytes: asm.S, boot.c, boot2.S: Replace `ouraddr' by `(BOOTSEG << 4)'. boot.c: Don't statically initialize `loadflags' to 0. Disable the "REDUNDANT" code that skips the BIOS variables. Eliminate `total'. Combine some more printfs. boot.h, disk.c, io.c, table.c: Move all statically initialzed data to table.c. io.c: Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
(bootinfo.bi_bios_geom[du->dk_unit] >> 16) + 2;
1995-04-24 05:09:53 +00:00
du->dk_dd.d_secpercyl =
du->dk_dd.d_ntracks * du->dk_dd.d_nsectors;
du->dk_dd.d_secperunit =
du->dk_dd.d_secpercyl * du->dk_dd.d_ncylinders;
#if 0
1995-04-24 05:09:53 +00:00
du->dk_dd.d_partitions[WDRAW].p_size =
du->dk_dd.d_secperunit;
du->dk_dd.d_type = DTYPE_ST506;
du->dk_dd.d_subtype |= DSTYPE_GEOMETRY;
strncpy(du->dk_dd.d_typename, "Bios geometry",
sizeof du->dk_dd.d_typename);
strncpy(du->dk_params.wdp_model, "ST506",
sizeof du->dk_params.wdp_model);
#endif
Load the kernel symbol table in the boot loader and not at compile time. (Boot with the -D flag if you want symbols.) Make it easier to extend `struct bootinfo' without losing either forwards or backwards compatibility. ddb_aout.c: Get the symbol table from wherever the loader put it. Nuke db_symtab[SYMTAB_SPACE]. boot.c: Enable loading of symbols. Align them on a page boundary. Add printfs about the symbol table sizes. Pass the memory sizes to the kernel. Fix initialization of `unit' (it got moved out of the loop). Fix adding the bss size (it got moved inside an ifdef). Initialize serial port when RB_SERIAL is toggled on. Fix comments. Clean up formatting of recently added code. io.c: Clean up formatting of recently added code. netboot/main.c, machdep.c, wd.c: Change names of bootinfo fields. LINT: Nuke SYMTAB_SPACE. Fix comment about DODUMP. Makefile.i386: Nuke use of dbsym. Exclude gcc symbols from kernel unless compiling with -g. Remove unused macro. Fix comments and formatting. genassym.c: Generate defines for some new bootinfo fields. Change names of old ones. locore.s: Copy only the valid part of the `struct bootinfo' passed by the loader. Reserve space for symbol table, if any. machdep.c: Check the memory sizes passed by the loader, if any. Don't use them yet. bootinfo.h: Add a size field so that we can resolve some mismatches between the loader bootinfo and the kernel boot info. The version number is not so good for this because of historical botches and because it's harder to maintain. Add memory size and symbol table fields. Change the names of everything. Hacks to save a few bytes: asm.S, boot.c, boot2.S: Replace `ouraddr' by `(BOOTSEG << 4)'. boot.c: Don't statically initialize `loadflags' to 0. Disable the "REDUNDANT" code that skips the BIOS variables. Eliminate `total'. Combine some more printfs. boot.h, disk.c, io.c, table.c: Move all statically initialzed data to table.c. io.c: Don't put the A20 gate bits in a variable.
1995-01-25 21:40:47 +00:00
bootinfo.bi_n_bios_used ++;
return 0;
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/*
* Fake minimal drive geometry for reading the MBR.
* readdisklabel() may enlarge it to read the label and the
* bad sector table.
*/
du->dk_dd.d_secsize = DEV_BSIZE;
du->dk_dd.d_nsectors = 17;
du->dk_dd.d_ntracks = 1;
du->dk_dd.d_ncylinders = 1;
du->dk_dd.d_secpercyl = 17;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_dd.d_secperunit = 17;
#if 0
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/*
* Fake maximal drive size for writing the label.
*/
du->dk_dd.d_partitions[RAW_PART].p_size = 64 * 16 * 1024;
/*
* Fake some more of the label for printing by disklabel(1)
* in case there is no real label.
*/
du->dk_dd.d_type = DTYPE_ST506;
du->dk_dd.d_subtype |= DSTYPE_GEOMETRY;
strncpy(du->dk_dd.d_typename, "Fake geometry",
sizeof du->dk_dd.d_typename);
#endif
/* Fake the model name for printing by wdattach(). */
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
strncpy(du->dk_params.wdp_model, "unknown",
sizeof du->dk_params.wdp_model);
return (0);
1993-06-12 14:58:17 +00:00
}
/* obtain parameters */
wp = &du->dk_params;
if (du->dk_flags & DKFL_32BIT)
insl(du->dk_port + wd_data, tb, sizeof(tb) / sizeof(long));
else
insw(du->dk_port + wd_data, tb, sizeof(tb) / sizeof(short));
/* try 32-bit data path (VLB IDE controller) */
if (flags & WDOPT_32BIT) {
if (! (du->dk_flags & DKFL_32BIT)) {
bcopy(tb, tb2, sizeof(struct wdparams));
du->dk_flags |= DKFL_32BIT;
goto again;
}
/* check that we really have 32-bit controller */
if (bcmp (tb, tb2, sizeof(struct wdparams)) != 0) {
failed:
/* test failed, use 16-bit i/o mode */
bcopy(tb2, tb, sizeof(struct wdparams));
du->dk_flags &= ~DKFL_32BIT;
}
}
1993-06-12 14:58:17 +00:00
bcopy(tb, wp, sizeof(struct wdparams));
/* shuffle string byte order */
1998-05-07 01:15:23 +00:00
for (i = 0; (unsigned)i < sizeof(wp->wdp_model); i += 2) {
1993-06-12 14:58:17 +00:00
u_short *p;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
1993-06-12 14:58:17 +00:00
p = (u_short *) (wp->wdp_model + i);
*p = ntohs(*p);
}
/*
* Clean up the wdp_model by converting nulls to spaces, and
* then removing the trailing spaces.
*/
1998-05-07 01:15:23 +00:00
for (i = 0; (unsigned)i < sizeof(wp->wdp_model); i++) {
if (wp->wdp_model[i] == '\0') {
wp->wdp_model[i] = ' ';
}
}
1998-05-07 01:15:23 +00:00
for (i = sizeof(wp->wdp_model) - 1;
(i >= 0 && wp->wdp_model[i] == ' '); i--) {
wp->wdp_model[i] = '\0';
}
/*
* find out the drives maximum multi-block transfer capability
*/
du->dk_multi = wp->wdp_nsecperint & 0xff;
wdsetmulti(du);
/*
* check drive's DMA capability
*/
if (wddma[du->dk_interface].wdd_candma) {
du->dk_dmacookie = wddma[du->dk_interface].wdd_candma(du->dk_port, du->dk_ctrlr);
/* does user want this? */
if ((du->cfg_flags & WDOPT_DMA) &&
/* have we got a DMA controller? */
du->dk_dmacookie &&
/* can said drive do DMA? */
wddma[du->dk_interface].wdd_dmainit(du->dk_dmacookie, wp, wdsetmode, du)) {
du->dk_flags |= DKFL_USEDMA;
}
} else {
du->dk_dmacookie = NULL;
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef WDDEBUG
printf(
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
"\nwd(%d,%d): wdgetctlr: gc %x cyl %d trk %d sec %d type %d sz %d model %s\n",
du->dk_ctrlr, du->dk_unit, wp->wdp_config, wp->wdp_cylinders,
wp->wdp_heads, wp->wdp_sectors, wp->wdp_buffertype,
wp->wdp_buffersize, wp->wdp_model);
#endif
1993-06-12 14:58:17 +00:00
/* update disklabel given drive information */
du->dk_dd.d_secsize = DEV_BSIZE;
if ((du->cfg_flags & WDOPT_LBA) && wp->wdp_lbasize) {
du->dk_dd.d_nsectors = 63;
if (wp->wdp_lbasize < 16*63*1024) { /* <=528.4 MB */
du->dk_dd.d_ntracks = 16;
}
else if (wp->wdp_lbasize < 32*63*1024) { /* <=1.057 GB */
du->dk_dd.d_ntracks = 32;
}
else if (wp->wdp_lbasize < 64*63*1024) { /* <=2.114 GB */
du->dk_dd.d_ntracks = 64;
}
else if (wp->wdp_lbasize < 128*63*1024) { /* <=4.228 GB */
du->dk_dd.d_ntracks = 128;
}
else if (wp->wdp_lbasize < 255*63*1024) { /* <=8.422 GB */
du->dk_dd.d_ntracks = 255;
}
else { /* >8.422 GB */
du->dk_dd.d_ntracks = 255; /* XXX */
}
du->dk_dd.d_secpercyl= du->dk_dd.d_ntracks*du->dk_dd.d_nsectors;
du->dk_dd.d_ncylinders = wp->wdp_lbasize/du->dk_dd.d_secpercyl;
du->dk_dd.d_secperunit = wp->wdp_lbasize;
du->dk_flags |= DKFL_LBA;
}
else {
du->dk_dd.d_ncylinders = wp->wdp_cylinders; /* +- 1 */
du->dk_dd.d_ntracks = wp->wdp_heads;
du->dk_dd.d_nsectors = wp->wdp_sectors;
du->dk_dd.d_secpercyl =
du->dk_dd.d_ntracks * du->dk_dd.d_nsectors;
du->dk_dd.d_secperunit =
du->dk_dd.d_secpercyl * du->dk_dd.d_ncylinders;
if (wp->wdp_cylinders == 16383 &&
du->dk_dd.d_secperunit < wp->wdp_lbasize) {
du->dk_dd.d_secperunit = wp->wdp_lbasize;
du->dk_dd.d_ncylinders =
du->dk_dd.d_secperunit / du->dk_dd.d_secpercyl;
}
}
if (WDOPT_FORCEHD(du->cfg_flags)) {
du->dk_dd.d_ntracks = WDOPT_FORCEHD(du->cfg_flags);
du->dk_dd.d_secpercyl =
du->dk_dd.d_ntracks * du->dk_dd.d_nsectors;
du->dk_dd.d_ncylinders =
du->dk_dd.d_secperunit / du->dk_dd.d_secpercyl;
}
#if 0
du->dk_dd.d_partitions[RAW_PART].p_size = du->dk_dd.d_secperunit;
1993-06-12 14:58:17 +00:00
/* dubious ... */
bcopy("ESDI/IDE", du->dk_dd.d_typename, 9);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
bcopy(wp->wdp_model + 20, du->dk_dd.d_packname, 14 - 1);
1993-06-12 14:58:17 +00:00
/* better ... */
du->dk_dd.d_type = DTYPE_ESDI;
du->dk_dd.d_subtype |= DSTYPE_GEOMETRY;
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
1993-06-12 14:58:17 +00:00
return (0);
}
int
wdclose(dev_t dev, int flags, int fmt, struct proc *p)
1993-06-12 14:58:17 +00:00
{
dsclose(dev, fmt, wddrives[dkunit(dev)]->dk_slices);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (0);
1993-06-12 14:58:17 +00:00
}
int
wdioctl(dev_t dev, u_long cmd, caddr_t addr, int flags, struct proc *p)
1993-06-12 14:58:17 +00:00
{
int lunit = dkunit(dev);
1993-06-12 14:58:17 +00:00
register struct disk *du;
int error;
#ifdef notyet
1993-06-12 14:58:17 +00:00
struct uio auio;
struct iovec aiov;
struct format_op *fop;
#endif
1993-06-12 14:58:17 +00:00
du = wddrives[lunit];
wdsleep(du->dk_ctrlr, "wdioct");
error = dsioctl("wd", dev, cmd, addr, flags, &du->dk_slices,
wdstrategy1, (ds_setgeom_t *)NULL);
if (error != ENOIOCTL)
return (error);
1993-06-12 14:58:17 +00:00
switch (cmd) {
case DIOCSBADSCAN:
if (*(int *)addr)
du->dk_flags |= DKFL_BADSCAN;
else
du->dk_flags &= ~DKFL_BADSCAN;
return (0);
1993-06-12 14:58:17 +00:00
#ifdef notyet
case DIOCWFORMAT:
if (!(flag & FWRITE))
return (EBADF);
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 * du->dk_dd.d_secsize;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#error /* XXX the 386BSD interface is different */
error = physio(wdformat, &rwdbuf[lunit], 0, dev, B_WRITE,
minphys, &auio);
fop->df_count -= auio.uio_resid;
fop->df_reg[0] = du->dk_status;
fop->df_reg[1] = du->dk_error;
return (error);
1993-06-12 14:58:17 +00:00
#endif
default:
return (ENOTTY);
1993-06-12 14:58:17 +00:00
}
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef B_FORMAT
1993-06-12 14:58:17 +00:00
int
wdformat(struct buf *bp)
{
bp->b_flags |= B_FORMAT;
1994-10-27 20:45:13 +00:00
wdstrategy(bp);
1995-04-24 05:09:53 +00:00
/*
1994-10-27 20:45:13 +00:00
* phk put this here, better that return(wdstrategy(bp));
* XXX
*/
return -1;
1993-06-12 14:58:17 +00:00
}
#endif
int
wdsize(dev_t dev)
{
struct disk *du;
int lunit;
1993-06-12 14:58:17 +00:00
lunit = dkunit(dev);
if (lunit >= NWD || dktype(dev) != 0)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (-1);
du = wddrives[lunit];
if (du == NULL)
1993-06-12 14:58:17 +00:00
return (-1);
return (dssize(dev, &du->dk_slices, wdopen, wdclose));
1993-06-12 14:58:17 +00:00
}
1998-05-07 01:15:23 +00:00
1993-06-12 14:58:17 +00:00
int
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wddump(dev_t dev)
1993-06-12 14:58:17 +00:00
{
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
register struct disk *du;
struct disklabel *lp;
long num; /* number of sectors to write */
int lunit, part;
long blkoff, blknum;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
long blkchk, blkcnt, blknext;
u_long ds_offset;
1998-05-07 01:15:23 +00:00
u_long nblocks;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
static int wddoingadump = 0;
1998-05-07 01:15:23 +00:00
long cylin, head, sector;
long secpertrk, secpercyl;
char *addr;
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Toss any characters present prior to dump. */
while (cncheckc() != -1)
1993-06-12 14:58:17 +00:00
;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Check for acceptable device. */
/* XXX should reset to maybe allow du->dk_state < OPEN. */
lunit = dkunit(dev); /* eventually support floppies? */
part = dkpart(dev);
if (lunit >= NWD || (du = wddrives[lunit]) == NULL
|| du->dk_state < OPEN
|| (lp = dsgetlabel(dev, du->dk_slices)) == NULL)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (ENXIO);
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Size of memory to dump, in disk sectors. */
num = (u_long)Maxmem * PAGE_SIZE / du->dk_dd.d_secsize;
1993-06-12 14:58:17 +00:00
1998-05-07 01:15:23 +00:00
1993-06-12 14:58:17 +00:00
secpertrk = du->dk_dd.d_nsectors;
secpercyl = du->dk_dd.d_secpercyl;
nblocks = lp->d_partitions[part].p_size;
blkoff = lp->d_partitions[part].p_offset;
/* XXX */
ds_offset = du->dk_slices->dss_slices[dkslice(dev)].ds_offset;
blkoff += ds_offset;
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#if 0
pg("part %x, nblocks %d, dumplo %d num %d\n",
part, nblocks, dumplo, num);
#endif
/* Check transfer bounds against partition size. */
if (dumplo < 0 || dumplo + num > nblocks)
return (EINVAL);
/* Check if we are being called recursively. */
if (wddoingadump)
return (EFAULT);
1993-06-12 14:58:17 +00:00
#if 0
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Mark controller active for if we panic during the dump. */
wdtab[du->dk_ctrlr].b_active = 1;
#endif
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wddoingadump = 1;
/* Recalibrate the drive. */
DELAY(5); /* ATA spec XXX NOT */
if (wdcommand(du, 0, 0, 0, 0, WDCC_RESTORE | WD_STEP) != 0
|| wdwait(du, WDCS_READY | WDCS_SEEKCMPLT, TIMEOUT) != 0
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
|| wdsetctlr(du) != 0) {
wderror((struct buf *)NULL, du, "wddump: recalibrate failed");
return (EIO);
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_flags |= DKFL_SINGLE;
addr = (char *) 0;
1993-06-12 14:58:17 +00:00
blknum = dumplo + blkoff;
while (num > 0) {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
blkcnt = num;
if (blkcnt > MAXTRANSFER)
blkcnt = MAXTRANSFER;
/* Keep transfer within current cylinder. */
1993-06-12 14:58:17 +00:00
if ((blknum + blkcnt - 1) / secpercyl != blknum / secpercyl)
blkcnt = secpercyl - (blknum % secpercyl);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
blknext = blknum + blkcnt;
1993-06-12 14:58:17 +00:00
1995-04-24 05:09:53 +00:00
/*
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
* See if one of the sectors is in the bad sector list
* (if we have one). If the first sector is bad, then
* reduce the transfer to this one bad sector; if another
* sector is bad, then reduce reduce the transfer to
* avoid any bad sectors.
1993-06-12 14:58:17 +00:00
*/
if (du->dk_flags & DKFL_SINGLE
&& dsgetbad(dev, du->dk_slices) != NULL) {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
for (blkchk = blknum; blkchk < blknum + blkcnt; blkchk++) {
daddr_t blknew;
blknew = transbad144(dsgetbad(dev, du->dk_slices),
blkchk - ds_offset) + ds_offset;
if (blknew != blkchk) {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Found bad block. */
blkcnt = blkchk - blknum;
if (blkcnt > 0) {
blknext = blknum + blkcnt;
goto out;
}
blkcnt = 1;
blknext = blknum + blkcnt;
#if 1 || defined(WDDEBUG)
1998-07-11 07:46:16 +00:00
printf("bad block %ld -> %ld\n",
(long)blknum, (long)blknew);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#endif
1993-06-12 14:58:17 +00:00
break;
}
1998-05-07 01:15:23 +00:00
}
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
out:
/* Compute disk address. */
cylin = blknum / secpercyl;
head = (blknum % secpercyl) / secpertrk;
sector = blknum % secpertrk;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#if 0
/* Let's just talk about this first... */
pg("cylin l%d head %ld sector %ld addr 0x%x count %ld",
cylin, head, sector, addr, blkcnt);
#endif
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Do the write. */
if (wdcommand(du, cylin, head, sector, blkcnt, WDCC_WRITE)
!= 0) {
wderror((struct buf *)NULL, du,
"wddump: timeout waiting to to give command");
return (EIO);
}
while (blkcnt != 0) {
if (is_physical_memory((vm_offset_t)addr))
pmap_enter(kernel_pmap, (vm_offset_t)CADDR1,
trunc_page((vm_offset_t)addr), VM_PROT_READ, TRUE);
else
pmap_enter(kernel_pmap, (vm_offset_t)CADDR1,
trunc_page(0), VM_PROT_READ, TRUE);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Ready to send data? */
DELAY(5); /* ATA spec */
if (wdwait(du, WDCS_READY | WDCS_SEEKCMPLT | WDCS_DRQ, TIMEOUT)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
< 0) {
wderror((struct buf *)NULL, du,
"wddump: timeout waiting for DRQ");
return (EIO);
}
if (du->dk_flags & DKFL_32BIT)
outsl(du->dk_port + wd_data,
CADDR1 + ((int)addr & PAGE_MASK),
DEV_BSIZE / sizeof(long));
else
outsw(du->dk_port + wd_data,
CADDR1 + ((int)addr & PAGE_MASK),
DEV_BSIZE / sizeof(short));
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
addr += DEV_BSIZE;
/*
* If we are dumping core, it may take a while.
* So reassure the user and hold off any watchdogs.
*/
if ((unsigned)addr % (1024 * 1024) == 0) {
#ifdef HW_WDOG
if (wdog_tickler)
(*wdog_tickler)();
#endif /* HW_WDOG */
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
printf("%ld ", num / (1024 * 1024 / DEV_BSIZE));
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
num--;
blkcnt--;
}
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Wait for completion. */
DELAY(5); /* ATA spec XXX NOT */
if (wdwait(du, WDCS_READY | WDCS_SEEKCMPLT, TIMEOUT) < 0) {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wderror((struct buf *)NULL, du,
"wddump: timeout waiting for status");
return (EIO);
}
1993-06-12 14:58:17 +00:00
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Check final status. */
if (du->dk_status
& (WDCS_READY | WDCS_SEEKCMPLT | WDCS_DRQ | WDCS_ERR)
!= (WDCS_READY | WDCS_SEEKCMPLT)) {
wderror((struct buf *)NULL, du,
"wddump: extra DRQ, or error");
return (EIO);
1993-06-12 14:58:17 +00:00
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
/* Update block count. */
blknum = blknext;
/* Operator aborting dump? */
if (cncheckc() != -1)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (EINTR);
1993-06-12 14:58:17 +00:00
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
return (0);
1993-06-12 14:58:17 +00:00
}
static void
wderror(struct buf *bp, struct disk *du, char *mesg)
{
if (bp == NULL)
printf("wd%d: %s", du->dk_lunit, mesg);
else
diskerr(bp, "wd", mesg, LOG_PRINTF, du->dk_skip,
dsgetlabel(bp->b_dev, du->dk_slices));
printf(" (status %b error %b)\n",
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du->dk_status, WDCS_BITS, du->dk_error, WDERR_BITS);
}
/*
* Discard any interrupts that were latched by the interrupt system while
* we were doing polled i/o.
*/
static void
wdflushirq(struct disk *du, int old_ipl)
{
#ifdef CMD640
wdtab[du->dk_ctrlr_cmd640].b_active = 2;
splx(old_ipl);
(void)splbio();
wdtab[du->dk_ctrlr_cmd640].b_active = 0;
#else
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wdtab[du->dk_ctrlr].b_active = 2;
splx(old_ipl);
(void)splbio();
wdtab[du->dk_ctrlr].b_active = 0;
#endif
}
/*
* Reset the controller.
*/
static int
wdreset(struct disk *du)
{
int err = 0;
if ((du->dk_flags & (DKFL_DMA|DKFL_USEDMA)) && du->dk_dmacookie)
wddma[du->dk_interface].wdd_dmadone(du->dk_dmacookie);
Add support for busmaster DMA on some PCI IDE chipsets. I changed a few bits here and there, mainly renaming wd82371.c to ide_pci.c now that it's supposed to handle different chipsets. It runs on my P6 natoma board with two Maxtor drives, and also on a Fujitsu machine I have at work with an Opti chipset and a Quantum drive. Submitted by:cgull@smoke.marlboro.vt.us <John Hood> Original readme: *** WARNING *** This code has so far been tested on exactly one motherboard with two identical drives known for their good DMA support. This code, in the right circumstances, could corrupt data subtly, silently, and invisibly, in much the same way that older PCI IDE controllers do. It's ALPHA-quality code; there's one or two major gaps in my understanding of PCI IDE still. Don't use this code on any system with data that you care about; it's only good for hack boxes. Expect that any data may be silently and randomly corrupted at any moment. It's a disk driver. It has bugs. Disk drivers with bugs munch data. It's a fact of life. I also *STRONGLY* recommend getting a copy of your chipset's manual and the ATA-2 or ATA-3 spec and making sure that timing modes on your disk drives and IDE controller are being setup correctly by the BIOS-- because the driver makes only the lamest of attempts to do this just now. *** END WARNING *** that said, i happen to think the code is working pretty well... WHAT IT DOES: this code adds support to the wd driver for bus mastering PCI IDE controllers that follow the SFF-8038 standard. (all the bus mastering PCI IDE controllers i've seen so far do follow this standard.) it should provide busmastering on nearly any current P5 or P6 chipset, specifically including any Intel chipset using one of the PIIX south bridges-- this includes the '430FX, '430VX, '430HX, '430TX, '440LX, and (i think) the Orion '450GX chipsets. specific support is also included for the VIA Apollo VP-1 chipset, as it appears in the relabeled "HXPro" incarnation seen on cheap US$70 taiwanese motherboards (that's what's in my development machine). it works out of the box on controllers that do DMA mode2; if my understanding is correct, it'll probably work on Ultra-DMA33 controllers as well. it'll probably work on busmastering IDE controllers in PCI slots, too, but this is an area i am less sure about. it cuts CPU usage considerably and improves drive performance slightly. usable numbers are difficult to come by with existing benchmark tools, but experimentation on my K5-P90 system, with VIA VP-1 chipset and Quantum Fireball 1080 drives, shows that disk i/o on raw partitions imposes perhaps 5% cpu load. cpu load during filesystem i/o drops a lot, from near 100% to anywhere between 30% and 70%. (the improvement may not be as large on an Intel chipset; from what i can tell, the VIA VP-1 may not be very efficient with PCI I/O.) disk performance improves by 5% or 10% with these drives. real, visible, end-user performance improvement on a single user machine is about nil. :) a kernel compile was sped up by a whole three seconds. it *does* feel a bit better-behaved when the system is swapping heavily, but a better disk driver is not the fix for *that* problem. THE CODE: this code is a patch to wd.c and wd82371.c, and associated header files. it should be considered alpha code; more work needs to be done. wd.c has fairly clean patches to add calls to busmaster code, as implemented in wd82371.c and potentially elsewhere (one could imagine, say, a Mac having a different DMA controller). wd82371.c has been considerably reworked: the wddma interface that it presents has been changed (expect more changes), many bugs have been fixed, a new internal interface has been added for supporting different chipsets, and the PCI probe has been considerably extended. the interface between wd82371.c and wd.c is still fairly clean, but i'm not sure it's in the right place. there's a mess of issues around ATA/ATAPI that need to be sorted out, including ATAPI support, CD-ROM support, tape support, LS-120/Zip support, SFF-8038i DMA, UltraDMA, PCI IDE controllers, bus probes, buggy controllers, controller timing setup, drive timing setup, world peace and kitchen sinks. whatever happens with all this and however it gets partitioned, it is fairly clear that wd.c needs some significant rework-- probably a complete rewrite. timing setup on disk controllers is something i've entirely punted on. on my development machine, it appears that the BIOS does at least some of the necessary timing setup. i chose to restrict operation to drives that are already configured for Mode4 PIO and Mode2 multiword DMA, since the timing is essentially the same and many if not most chipsets use the same control registers for DMA and PIO timing. does anybody *know* whether BIOSes are required to do timing setup for DMA modes on drives under their care? error recovery is probably weak. early on in development, i was getting drive errors induced by bugs in the driver; i used these to flush out the worst of the bugs in the driver's error handling, but problems may remain. i haven't got a drive with bad sectors i can watch the driver flail on. complaints about how wd82371.c has been reindented will be ignored until the FreeBSD project has a real style policy, there is a mechanism for individual authors to match it (indent flags or an emacs c-mode or whatever), and it is enforced. if i'm going to use a source style i don't like, it would help if i could figure out what it *is* (style(9) is about half of a policy), and a way to reasonably duplicate it. i ended up wasting a while trying to figure out what the right thing to do was before deciding reformatting the whole thing was the worst possible thing to do, except for all the other possibilities. i have maintained wd.c's indentation; that was not too hard, fortunately. TO INSTALL: my dev box is freebsd 2.2.2 release. fortunately, wd.c is a living fossil, and has diverged very little recently. included in this tarball is a patch file, 'otherdiffs', for all files except wd82371.c, my edited wd82371.c, a patch file, 'wd82371.c-diff-exact', against the 2.2.2 dist of 82371.c, and another patch file, 'wd82371.c-diff-whitespace', generated with diff -b (ignore whitespace). most of you not using 2.2.2 will probably have to use this last patchfile with 'patch --ignore-whitespace'. apply from the kernel source tree root. as far as i can tell, this should apply cleanly on anything from -current back to 2.2.2 and probably back to 2.2.0. you, the kernel hacker, can figure out what to do from here. if you need more specific directions, you probably should not be experimenting with this code yet. to enable DMA support, set flag 0x2000 for that drive in your config file or in userconfig, as you would the 32-bit-PIO flag. the driver will then turn on DMA support if your drive and controller pass its tests. it's a bit picky, probably. on discovering DMA mode failures or disk errors or transfers that the DMA controller can't deal with, the driver will fall back to PIO, so it is wise to setup the flags as if PIO were still important. 'controller wdc0 at isa? port "IO_WD1" bio irq 14 flags 0xa0ffa0ff vector wdintr' should work with nearly any PCI IDE controller. i would *strongly* suggest booting single-user at first, and thrashing the drive a bit while it's still mounted read-only. this should be fairly safe, even if the driver goes completely out to lunch. it might save you a reinstall. one way to tell whether the driver is really using DMA is to check the interrupt count during disk i/o with vmstat; DMA mode will add an extremely low number of interrupts, as compared to even multi-sector PIO. boot -v will give you a copious register dump of timing-related info on Intel and VIAtech chipsets, as well as PIO/DMA mode information on all hard drives. refer to your ATA and chipset documentation to interpret these. WHAT I'D LIKE FROM YOU and THINGS TO TEST: reports. success reports, failure reports, any kind of reports. :) send them to cgull+ide@smoke.marlboro.vt.us. i'd also like to see the kernel messages from various BIOSes (boot -v; dmesg), along with info on the motherboard and BIOS on that machine. i'm especially interested in reports on how this code works on the various Intel chipsets, and whether the register dump works correctly. i'm also interested in hearing about other chipsets. i'm especially interested in hearing success/failure reports for PCI IDE controllers on cards, such as CMD's or Promise's new busmastering IDE controllers. UltraDMA-33 reports. interoperation with ATAPI peripherals-- FreeBSD doesn't work with my old Hitachi IDE CDROM, so i can't tell if I've broken anything. :) i'd especially like to hear how the drive copes in DMA operation on drives with bad sectors. i haven't been able to find any such yet. success/failure reports on older IDE drives with early support for DMA modes-- those introduced between 1.5 and 3 years ago, typically ranging from perhaps 400MB to 1.6GB. failure reports on operation with more than one drive would be appreciated. the driver was developed with two drives on one controller, the worst-case situation, and has been tested with one drive on each controller, but you never know... any reports of messages from the driver during normal operation, especially "reverting to PIO mode", or "dmaverify odd vaddr or length" (the DMA controller is strongly halfword oriented, and i'm curious to know if any FreeBSD usage actually needs misaligned transfers). performance reports. beware that bonnie's CPU usage reporting is useless for IDE drives; the best test i've found has been to run a program that runs a spin loop at an idle priority and reports how many iterations it manages, and even that sometimes produces numbers i don't believe. performance reports of multi-drive operation are especially interesting; my system cannot sustain full throughput on two drives on separate controllers, but that may just be a lame motherboard. THINGS I'M STILL MISSING CLUE ON: * who's responsible for configuring DMA timing modes on IDE drives? the BIOS or the driver? * is there a spec for dealing with Ultra-DMA extensions? * are there any chipsets or with bugs relating to DMA transfer that should be blacklisted? * are there any ATA interfaces that use some other kind of DMA controller in conjunction with standard ATA protocol? FINAL NOTE: after having looked at the ATA-3 spec, all i can say is, "it's ugly". *especially* electrically. the IDE bus is best modeled as an unterminated transmission line, these days. for maximum reliability, keep your IDE cables as short as possible and as few as possible. from what i can tell, most current chipsets have both IDE ports wired into a single buss, to a greater or lesser degree. using two cables means you double the length of this bus. SCSI may have its warts, but at least the basic analog design of the bus is still somewhat reasonable. IDE passed beyond the veil two years ago. --John Hood, cgull@smoke.marlboro.vt.us
1997-07-29 12:57:25 +00:00
(void)wdwait(du, 0, TIMEOUT);
outb(du->dk_altport, WDCTL_IDS | WDCTL_RST);
DELAY(10 * 1000);
outb(du->dk_altport, WDCTL_IDS);
#ifdef ATAPI
if (wdwait(du, WDCS_READY | WDCS_SEEKCMPLT, TIMEOUT) != 0)
err = 1; /* no IDE drive found */
du->dk_error = inb(du->dk_port + wd_error);
if (du->dk_error != 0x01)
err = 1; /* the drive is incompatible */
#else
if (wdwait(du, WDCS_READY | WDCS_SEEKCMPLT, TIMEOUT) != 0) {
printf("wdreset: error1: 0x%x\n", du->dk_error);
return (1);
}
#endif
outb(du->dk_altport, WDCTL_4BIT);
return (err);
}
/*
* Sleep until driver is inactive.
* This is used only for avoiding rare race conditions, so it is unimportant
* that the sleep may be far too short or too long.
*/
static void
wdsleep(int ctrlr, char *wmesg)
{
int s = splbio();
#ifdef CMD640
if (eide_quirks & Q_CMD640B)
ctrlr = PRIMARY;
#endif
while (wdtab[ctrlr].b_active)
tsleep((caddr_t)&wdtab[ctrlr].b_active, PZERO - 1, wmesg, 1);
splx(s);
}
1994-02-06 17:03:17 +00:00
static void
wdtimeout(void *cdu)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
{
struct disk *du;
int x;
static int timeouts;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
du = (struct disk *)cdu;
x = splbio();
if (du->dk_timeout != 0 && --du->dk_timeout == 0) {
if(timeouts++ <= 5) {
char *msg;
msg = (timeouts > 5) ?
"Last time I say: interrupt timeout. Probably a portable PC." :
"interrupt timeout";
wderror((struct buf *)NULL, du, msg);
if (du->dk_dmacookie)
printf("wd%d: wdtimeout() DMA status %b\n",
du->dk_lunit,
wddma[du->dk_interface].wdd_dmastatus(du->dk_dmacookie),
WDDS_BITS);
}
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
wdunwedge(du);
wdflushirq(du, x);
du->dk_skip = 0;
du->dk_flags |= DKFL_SINGLE;
wdstart(du->dk_ctrlr);
}
timeout(wdtimeout, cdu, hz);
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
splx(x);
}
/*
* Reset the controller after it has become wedged. This is different from
* wdreset() so that wdreset() can be used in the probe and so that this
* can restore the geometry .
*/
static int
wdunwedge(struct disk *du)
{
struct disk *du1;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
int lunit;
/* Schedule other drives for recalibration. */
for (lunit = 0; lunit < NWD; lunit++)
if ((du1 = wddrives[lunit]) != NULL && du1 != du
&& du1->dk_ctrlr == du->dk_ctrlr
&& du1->dk_state > WANTOPEN)
du1->dk_state = WANTOPEN;
DELAY(RECOVERYTIME);
if (wdreset(du) == 0) {
/*
* XXX - recalibrate current drive now because some callers
* aren't prepared to have its state change.
*/
if (wdcommand(du, 0, 0, 0, 0, WDCC_RESTORE | WD_STEP) == 0
&& wdwait(du, WDCS_READY | WDCS_SEEKCMPLT, TIMEOUT) == 0
&& wdsetctlr(du) == 0)
return (0);
}
wderror((struct buf *)NULL, du, "wdunwedge failed");
return (1);
}
/*
* Wait uninterruptibly until controller is not busy and either certain
* status bits are set or an error has occurred.
* The wait is usually short unless it is for the controller to process
* an entire critical command.
* Return 1 for (possibly stale) controller errors, -1 for timeout errors,
* or 0 for no errors.
* Return controller status in du->dk_status and, if there was a controller
* error, return the error code in du->dk_error.
*/
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef WD_COUNT_RETRIES
static int min_retries[NWDC];
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#endif
static int
wdwait(struct disk *du, u_char bits_wanted, int timeout)
{
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
int wdc;
u_char status;
#define POLLING 1000
wdc = du->dk_port;
timeout += POLLING;
/*
* This delay is really too long, but does not impact the performance
* as much when using the multi-sector option. Shorter delays have
* caused I/O errors on some drives and system configs. This should
* probably be fixed if we develop a better short term delay mechanism.
*/
DELAY(1);
do {
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#ifdef WD_COUNT_RETRIES
if (min_retries[du->dk_ctrlr] > timeout
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
|| min_retries[du->dk_ctrlr] == 0)
min_retries[du->dk_ctrlr] = timeout;
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#endif
du->dk_status = status = inb(wdc + wd_status);
#ifdef ATAPI
/*
* Atapi drives have a very interesting feature, when attached
* as a slave on the IDE bus, and there is no master.
* They release the bus after getting the command.
* We should reselect the drive here to get the status.
*/
if (status == 0xff) {
outb(wdc + wd_sdh, WDSD_IBM | du->dk_unit << 4);
du->dk_status = status = inb(wdc + wd_status);
}
#endif
if (!(status & WDCS_BUSY)) {
if (status & WDCS_ERR) {
du->dk_error = inb(wdc + wd_error);
/*
* We once returned here. This is wrong
* because the error bit is apparently only
* valid after the controller has interrupted
* (e.g., the error bit is stale when we wait
* for DRQ for writes). So we can't depend
* on the error bit at all when polling for
* command completion.
*/
}
if ((status & bits_wanted) == bits_wanted) {
return (status & WDCS_ERR);
}
}
if (timeout < TIMEOUT)
/*
* Switch to a polling rate of about 1 KHz so that
* the timeout is almost machine-independent. The
* controller is taking a long time to respond, so
* an extra msec won't matter.
*/
DELAY(1000);
else
DELAY(1);
} while (--timeout != 0);
return (-1);
}
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
static wd_devsw_installed = 0;
static void wd_drvinit(void *unused)
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
{
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
if( ! wd_devsw_installed ) {
if (wd_cdevsw.d_maxio == 0)
wd_cdevsw.d_maxio = 248 * 512;
cdevsw_add_generic(BDEV_MAJOR,CDEV_MAJOR, &wd_cdevsw);
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
wd_devsw_installed = 1;
}
the second set of changes in a move towards getting devices to be totally dynamic. this is only the devices in i386/isa I'll do more tomorrow. they're completely masked by #ifdef JREMOD at this stage... the eventual aim is that every driver will do a SYSINIT at startup BEFORE the probes, which will effectively link it into the devsw tables etc. If I'd thought about it more I'd have put that in in this set (damn) The ioconf lines generated by config will also end up in the device's own scope as well, so ioconf.c will eventually be gutted the SYSINIT call to the driver will include a phase where the driver links it's ioconf line into a chain of such. when this phase is done then the user can modify them with the boot: -c config menu if he wants, just like now.. config will put the config lines out in the .h file (e.g. in aha.h will be the addresses for the aha driver to look.) as I said this is a very small first step.. the aim of THIS set of edits is to not have to edit conf.c at all when adding a new device.. the tabe will be a simple skeleton.. when this is done, it will allow other changes to be made, all teh time still having a fully working kernel tree, but the logical outcome is the complete REMOVAL of the devsw tables. By the end of this, linked in drivers will be exactly the same as run-time loaded drivers, except they JUST HAPPEN to already be linked and present at startup.. the SYSINIT calls will be the equivalent of the "init" call made to a newly loaded driver in every respect. For this edit, each of the files has the following code inserted into it: obviously, tailored to suit.. ----------------------somewhere at the top: #ifdef JREMOD #include <sys/conf.h> #define CDEV_MAJOR 13 #define BDEV_MAJOR 4 static void sd_devsw_install(); #endif /*JREMOD */ ---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT #ifdef JREMOD sd_devsw_install(); #endif /*JREMOD*/ -----------------------at the bottom: #ifdef JREMOD struct bdevsw sd_bdevsw = { sdopen, sdclose, sdstrategy, sdioctl, /*4*/ sddump, sdsize, 0 }; struct cdevsw sd_cdevsw = { sdopen, sdclose, rawread, rawwrite, /*13*/ sdioctl, nostop, nullreset, nodevtotty,/* sd */ seltrue, nommap, sdstrategy }; static sd_devsw_installed = 0; static void sd_devsw_install() { dev_t descript; if( ! sd_devsw_installed ) { descript = makedev(CDEV_MAJOR,0); cdevsw_add(&descript,&sd_cdevsw,NULL); #if defined(BDEV_MAJOR) descript = makedev(BDEV_MAJOR,0); bdevsw_add(&descript,&sd_bdevsw,NULL); #endif /*BDEV_MAJOR*/ sd_devsw_installed = 1; } } #endif /* JREMOD */
1995-11-28 09:42:06 +00:00
}
SYSINIT(wddev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,wd_drvinit,NULL)
From: bde@kralizec.zeta.org.au (Bruce Evans) o merged and fixed timeout code from sos. o merged DOS partition support from sos. o fixed "extra" interrupts. o check if malloc retuns NULL :-(. o print drive size as in NetBSD o after an error, return the residual count, not 0. o give up early for > 16 heads. o cleaned up the old-drive detection in wdgetctlr(). o rewrote wddump(). I'd been putting this off because I'd had the dump disabled since 0.0 and had no idea if even the standard version worked. It didn't: (0) syscons' sgetc() interface broke some keyboard stuff. (1) CADDR1 is mapped using pmap() and pmap got a NULL pointer trap (at least when I got to wddump() using call diediedie from ddb) because the pte for CADDR1 is only supposed to be hacked on directly (e.g. in physcopyseg()). (2) bad144 handling was not done. (3) it was slooow (3600 sectors/minute) because my controller doesn't cache writes. o miscellaneous other cleanups, e.g., removed scattered patchkit/terry dates. o lots of reformatting. To be done: o Merge/fix TIH/NetBSD bad144 code (doesn't belong in any particular driver. Why aren't we using i386/dkbad.c?). o Merge/fix Dyson/NetBSD clustering code (large parts should be shared). o Fix/extend the partition in use bits. Support extended partitions. This should be shared by all disk drivers. Swap to a DOS partition so that the swap space can be shared with linux. o Don't use polling except for initialization. Need to reorganise the state machine. Then "extra" interrupts shouldn't happen (except maybe one for initialization). o Fix disklabel, boot and driver inconsistencies with bad144 in standard versions. o Look at latest linux clustering methods. Our disksort() gets in the way of clustering. o cleaned up the ATA changes (needs more work. I think the ATA specs say that the only thing really wrong with the original version of wx is that there was no test for drive-ready before some commands. 400 nsec delay suffices for almost everything and 400 nsec delay is usually "free").
1994-02-01 05:55:21 +00:00
#endif /* NWDC > 0 */