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disklabel.h revision 1.2 
      1 /*	$NetBSD: disklabel.h,v 1.2 2001/11/10 07:35:17 wdk Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2000 Soren S. Jorvang
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *          This product includes software developed for the
     18  *          NetBSD Project.  See http://www.netbsd.org/ for
     19  *          information about NetBSD.
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 #ifndef _MACHINE_DISKLABEL_H_
     36 #define _MACHINE_DISKLABEL_H_
     37 
     38 /*
     39  * SGI partition conventions:
     40  *
     41  * Partition 0 - root
     42  * Partition 1 - swap
     43  * Partition 6 - usr
     44  * Partition 7 - volume body
     45  * Partition 8 - volume header
     46  * Partition 10 - whole disk
     47  */
     48 
     49 /*
     50  * XXX It might be convenient to have MAXPARTITIONS 2 like on other ports.
     51  * How to sanely map partition numbers in that case?
     52  */
     53 #define MAXPARTITIONS	16
     54 #define RAW_PART	2
     55 
     56 #define LABELSECTOR	1
     57 #define LABELOFFSET	0
     58 
     59 struct cpu_disklabel {
     60 	int	cd_dummy;
     61 };
     62 
     63 struct devparms {
     64 	u_int8_t	dp_skew;
     65 	u_int8_t	dp_gap1;
     66 	u_int8_t	dp_gap2;
     67 	u_int8_t	dp_spares_cyl;
     68 	u_int16_t	dp_cyls;
     69 	u_int16_t	dp_shd0;
     70 	u_int16_t	dp_trks0;
     71 	u_int8_t	dp_ctq_depth;
     72 	u_int8_t	dp_cylshi;
     73 	u_int16_t	dp_unused;
     74 	u_int16_t	dp_secs;
     75 	u_int16_t	dp_secbytes;
     76 	u_int16_t	dp_interleave;
     77 	u_int32_t	dp_flags;
     78 	u_int32_t	dp_datarate;
     79 	u_int32_t	dp_nretries;
     80 	u_int32_t	dp_mspw;
     81 	u_int16_t	dp_xgap1;
     82 	u_int16_t	dp_xsync;
     83 	u_int16_t	dp_xrdly;
     84 	u_int16_t	dp_xgap2;
     85 	u_int16_t	dp_xrgate;
     86 	u_int16_t	dp_xwcont;
     87 } __attribute__((__packed__));
     88 
     89 struct sgilabel {
     90 #define SGILABEL_MAGIC	0xbe5a941
     91 	u_int32_t	magic;
     92 	int16_t		root;
     93 	int16_t		swap;
     94 	char		bootfile[16];
     95 	struct devparms dp;
     96 	struct {
     97 		char 		name[8];
     98 		int32_t		block;
     99 		int32_t		bytes;
    100 	} voldir[15];
    101 	struct {
    102 		int32_t 	blocks;
    103 		int32_t 	first;
    104 		int32_t 	type;
    105 	} partitions[MAXPARTITIONS];
    106 	int32_t		checksum;
    107 	int32_t		_pad;
    108 } __attribute__((__packed__));
    109 
    110 #define SGI_PTYPE_VOLHDR	0
    111 #define SGI_PTYPE_RAW		3
    112 #define SGI_PTYPE_BSD		4
    113 #define SGI_PTYPE_VOLUME	6
    114 #define SGI_PTYPE_EFS		7
    115 #define SGI_PTYPE_LVOL		8
    116 #define SGI_PTYPE_RLVOL     	9
    117 #define SGI_PTYPE_XFS		10
    118 #define SGI_PTYPE_XFSLOG	11
    119 #define SGI_PTYPE_XLV		12
    120 #define SGI_PTYPE_XVM		13
    121 
    122 #endif /* _MACHINE_DISKLABEL_H_ */
    123