1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1991-2002 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _DEFECT_H 28*0Sstevel@tonic-gate #define _DEFECT_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate /* 37*0Sstevel@tonic-gate * This file contains definitions related to the defect list. 38*0Sstevel@tonic-gate */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate extern struct defect_list work_list; 41*0Sstevel@tonic-gate extern struct dkbad badmap; 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate /* 44*0Sstevel@tonic-gate * This is the structure of the header of a defect list. It is always 45*0Sstevel@tonic-gate * the first sector on a track containing a defect list. 46*0Sstevel@tonic-gate */ 47*0Sstevel@tonic-gate struct defectHeader { 48*0Sstevel@tonic-gate uint_t magicno; 49*0Sstevel@tonic-gate int count; 50*0Sstevel@tonic-gate int cksum; 51*0Sstevel@tonic-gate int save[125]; 52*0Sstevel@tonic-gate }; 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate /* 55*0Sstevel@tonic-gate * This is the structure of a defect. Defects are stored on the disk 56*0Sstevel@tonic-gate * as an array of these structures following the defect header. 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate struct defect_entry { 59*0Sstevel@tonic-gate short cyl; 60*0Sstevel@tonic-gate short head; 61*0Sstevel@tonic-gate short sect; 62*0Sstevel@tonic-gate short nbits; 63*0Sstevel@tonic-gate int bfi; 64*0Sstevel@tonic-gate }; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* 67*0Sstevel@tonic-gate * This is the internal representation of a defect list. We store 68*0Sstevel@tonic-gate * the header statically, but dynamically allocate space for the 69*0Sstevel@tonic-gate * actual defects, since their number may vary. The flags field is 70*0Sstevel@tonic-gate * used to keep track of whether the list has been modified. 71*0Sstevel@tonic-gate */ 72*0Sstevel@tonic-gate struct defect_list { 73*0Sstevel@tonic-gate struct defectHeader header; 74*0Sstevel@tonic-gate struct defect_entry *list; 75*0Sstevel@tonic-gate int flags; 76*0Sstevel@tonic-gate }; 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate /* 79*0Sstevel@tonic-gate * This defines the number of copies of the defect list kept on the disk. 80*0Sstevel@tonic-gate * They are stored 1/track, starting at track 0 of the second alternate cyl. 81*0Sstevel@tonic-gate */ 82*0Sstevel@tonic-gate #define LISTCOUNT 2 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate /* 85*0Sstevel@tonic-gate * This defines the size (in sectors) of the defect array given the number 86*0Sstevel@tonic-gate * of defects in the array. It must be rounded to a sector boundary since 87*0Sstevel@tonic-gate * that is the atomic disk size. We make a zero length list use up a 88*0Sstevel@tonic-gate * sector because it is convenient to have malloc'd space in every 89*0Sstevel@tonic-gate * non-null list. 90*0Sstevel@tonic-gate */ 91*0Sstevel@tonic-gate #define LISTSIZE(x) ((x) ? ((x) * sizeof (struct defect_entry) + \ 92*0Sstevel@tonic-gate SECSIZE - 1) / SECSIZE : 1) 93*0Sstevel@tonic-gate 94*0Sstevel@tonic-gate /* 95*0Sstevel@tonic-gate * These defines are the flags for the defect list. 96*0Sstevel@tonic-gate */ 97*0Sstevel@tonic-gate #define LIST_DIRTY 0x01 /* List needs to be synced */ 98*0Sstevel@tonic-gate #define LIST_RELOAD 0x02 /* Reload list after formatting (SCSI) */ 99*0Sstevel@tonic-gate #define LIST_PGLIST 0x04 /* embedded SCSI - both manufacturer's (P) */ 100*0Sstevel@tonic-gate /* and grown (G) list */ 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate /* 103*0Sstevel@tonic-gate * Miscellaneous defines. 104*0Sstevel@tonic-gate */ 105*0Sstevel@tonic-gate #define DEFECT_MAGIC 0x89898989 /* magic no for defect lists */ 106*0Sstevel@tonic-gate #define NO_CHECKSUM 0x1 /* magic no for no checksum in */ 107*0Sstevel@tonic-gate /* defect list */ 108*0Sstevel@tonic-gate #define UNKNOWN (-1) /* value used in defect fields */ 109*0Sstevel@tonic-gate #define DEF_PRINTHEADER " num cyl hd bfi len sec blk\n" 110*0Sstevel@tonic-gate 111*0Sstevel@tonic-gate /* 112*0Sstevel@tonic-gate * This defines the number of copies of the bad block table kept on the 113*0Sstevel@tonic-gate * disk. They are stored in the first 5 even sectors on the last track 114*0Sstevel@tonic-gate * of the disk. Note: this also defines the number of backup labels, 115*0Sstevel@tonic-gate * which are kept in the first 5 odd sectors of the appropriate 116*0Sstevel@tonic-gate * track. 117*0Sstevel@tonic-gate */ 118*0Sstevel@tonic-gate #define BAD_LISTCNT 5 119*0Sstevel@tonic-gate 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate /* 122*0Sstevel@tonic-gate * Prototypes for ANSI C compilers 123*0Sstevel@tonic-gate */ 124*0Sstevel@tonic-gate void read_list(struct defect_list *list); 125*0Sstevel@tonic-gate int makebfi(struct defect_list *list, struct defect_entry *def); 126*0Sstevel@tonic-gate void calc_bfi(struct defect_list *list, struct defect_entry *def, 127*0Sstevel@tonic-gate struct defect_entry *end, int skew); 128*0Sstevel@tonic-gate int makelsect(struct defect_list *list); 129*0Sstevel@tonic-gate int checkdefsum(struct defect_list *list, int mode); 130*0Sstevel@tonic-gate void pr_defect(struct defect_entry *def, int num); 131*0Sstevel@tonic-gate int sort_defect(struct defect_entry *def, struct defect_list *list); 132*0Sstevel@tonic-gate void write_deflist(struct defect_list *list); 133*0Sstevel@tonic-gate void add_ldef(diskaddr_t blkno, struct defect_list *list); 134*0Sstevel@tonic-gate void add_def(struct defect_entry *def, struct defect_list *list, 135*0Sstevel@tonic-gate int index); 136*0Sstevel@tonic-gate void kill_deflist(struct defect_list *list); 137*0Sstevel@tonic-gate 138*0Sstevel@tonic-gate #ifdef __cplusplus 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate #endif 141*0Sstevel@tonic-gate 142*0Sstevel@tonic-gate #endif /* _DEFECT_H */ 143