5b39541e48
- New metrics handling. Metrics are now kept in the new `struct disk'. Busy time is now stored as a timeval, and transfer count in bytes. - Storage for disklabels is now dynamically allocated, so that the size of the disk structure is not machine-dependent. - Several new functions for attaching and detaching disks, and handling metrics calculation. Old-style instrumentation is still supported in drivers that did it before. However, old-style instrumentation is being deprecated, and will go away once the userland utilities are updated for the new framework. For usage and architectural details, see the forthcoming disk(9) manual page.
116 lines
4.5 KiB
C
116 lines
4.5 KiB
C
/* $NetBSD: sun_disklabel.h,v 1.6 1996/01/07 22:03:09 thorpej Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
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*/
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/*
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* SunOS disk label layout (only relevant portions discovered here).
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*/
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#define SUN_DKMAGIC 55998
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/* These are the guys that Sun's dkinfo needs... */
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#define DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */
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#define DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */
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#define DKIOCGPART _IOR('d', 4, struct sun_dkpart) /* partition info */
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/* geometry info */
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struct sun_dkgeom {
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u_short sdkc_ncylinders; /* data cylinders */
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u_short sdkc_acylinders; /* alternate cylinders */
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u_short sdkc_xxx1;
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u_short sdkc_ntracks; /* tracks per cylinder */
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u_short sdkc_xxx2;
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u_short sdkc_nsectors; /* sectors per track */
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u_short sdkc_interleave; /* interleave factor */
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u_short sdkc_xxx3;
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u_short sdkc_xxx4;
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u_short sdkc_sparespercyl; /* spare sectors per cylinder */
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u_short sdkc_rpm; /* rotational speed */
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u_short sdkc_pcylinders; /* physical cylinders */
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u_short sdkc_xxx5[7];
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};
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/* controller info */
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struct sun_dkctlr {
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int sdkc_addr; /* controller address */
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short sdkc_unit; /* unit (slave) address */
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short sdkc_type; /* controller type */
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short sdkc_flags; /* flags */
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};
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/* partition info */
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struct sun_dkpart {
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long sdkp_cyloffset; /* starting cylinder */
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long sdkp_nsectors; /* number of sectors */
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};
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struct sun_disklabel { /* total size = 512 bytes */
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char sl_text[128];
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char sl_xxx1[292];
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u_short sl_rpm; /* rotational speed */
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u_short sl_pcylinders; /* number of physical cyls */
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u_short sl_sparespercyl; /* spare sectors per cylinder */
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char sl_xxx3[4];
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u_short sl_interleave; /* interleave factor */
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u_short sl_ncylinders; /* data cylinders */
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u_short sl_acylinders; /* alternate cylinders */
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u_short sl_ntracks; /* tracks per cylinder */
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u_short sl_nsectors; /* sectors per track */
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char sl_xxx4[4];
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struct sun_dkpart sl_part[8]; /* partition layout */
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u_short sl_magic; /* == SUN_DKMAGIC */
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u_short sl_cksum; /* xor checksum of all shorts */
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};
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#define SUN_LABELOFFSET 128
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#ifdef _KERNEL
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/* reads sun label in sector at [cp..cp+511] and sets *lp to BSD label */
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int sun_disklabel __P((caddr_t, struct disklabel *)); /* true on success */
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/* compatability dk ioctl's */
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int sun_dkioctl __P((struct disk *, u_long, caddr_t, int));
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#endif
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