1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_CMLB_IMPL_H 28 #define _SYS_CMLB_IMPL_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #include <sys/cmlb.h> 35 #include <sys/ddi.h> 36 #include <sys/sunddi.h> 37 38 /* 39 * FDISK partitions - 4 primary and MAX_EXT_PARTS number of Extended 40 * Partitions. 41 */ 42 #define FDISK_PARTS (FD_NUMPART + MAX_EXT_PARTS) 43 44 #if defined(_SUNOS_VTOC_8) 45 #define NSDMAP NDKMAP 46 #elif defined(_SUNOS_VTOC_16) 47 #define NSDMAP (NDKMAP + FDISK_PARTS + 1) 48 #else 49 #error "No VTOC format defined." 50 #endif 51 52 #define MAXPART (NSDMAP + 1) 53 #define WD_NODE 7 54 55 56 #if defined(__i386) || defined(__amd64) 57 58 #define P0_RAW_DISK (NDKMAP) 59 #define FDISK_P1 (NDKMAP+1) 60 #define FDISK_P2 (NDKMAP+2) 61 #define FDISK_P3 (NDKMAP+3) 62 #define FDISK_P4 (NDKMAP+4) 63 64 #endif /* __i386 || __amd64 */ 65 66 /* Driver Logging Levels */ 67 #define CMLB_LOGMASK_ERROR 0x00000001 68 #define CMLB_LOGMASK_INFO 0x00000002 69 #define CMLB_LOGMASK_TRACE 0x00000004 70 71 #define CMLB_TRACE 0x00000001 72 #define CMLB_INFO 0x00000002 73 #define CMLB_ERROR 0x00000004 74 75 76 #define CMLB_MUTEX(cl) (&((cl)->cl_mutex)) 77 #define CMLB_DEVINFO(cl) ((cl)->cl_devi) 78 #define CMLB_LABEL(cl) (DEVI(((cl)->cl_devi))->devi_binding_name) 79 80 81 #define ISREMOVABLE(cl) (cl->cl_is_removable) 82 #define ISCD(cl) (cl->cl_device_type == DTYPE_RODIRECT) 83 #define ISHOTPLUGGABLE(cl) (cl->cl_is_hotpluggable) 84 85 #if defined(_SUNOS_VTOC_8) 86 87 #define CMLBUNIT_SHIFT 3 88 #define CMLBPART_MASK 7 89 90 #elif defined(_SUNOS_VTOC_16) 91 92 #define CMLBUNIT_SHIFT 6 93 #define CMLBPART_MASK 63 94 95 #else 96 #error "No VTOC format defined." 97 #endif 98 99 #define CMLBUNIT(dev) (getminor((dev)) >> CMLBUNIT_SHIFT) 100 #define CMLBPART(dev) (getminor((dev)) & CMLBPART_MASK) 101 102 /* 103 * Return codes of cmlb_uselabel(). 104 */ 105 #define CMLB_LABEL_IS_VALID 0 106 #define CMLB_LABEL_IS_INVALID 1 107 108 #define CMLB_2TB_BLOCKS 0xffffffff 109 #define CMLB_1TB_BLOCKS 0x7fffffff 110 111 #define CMLB_EXTVTOC_LIMIT CMLB_2TB_BLOCKS 112 #define CMLB_OLDVTOC_LIMIT CMLB_1TB_BLOCKS 113 114 /* 115 * fdisk partition mapping structure 116 */ 117 struct fmap { 118 ulong_t fmap_start; /* starting block number */ 119 ulong_t fmap_nblk; /* number of blocks */ 120 uchar_t fmap_systid; /* systid of the partition */ 121 }; 122 123 /* for cm_state */ 124 typedef enum { 125 CMLB_INITED = 0, 126 CMLB_ATTACHED 127 } cmlb_state_t; 128 129 typedef enum 130 { 131 CMLB_LABEL_UNDEF = 0, 132 CMLB_LABEL_VTOC, 133 CMLB_LABEL_EFI 134 } cmlb_label_t; 135 136 #define CMLB_ALLOW_2TB_WARN 0x1 137 138 139 typedef struct cmlb_lun { 140 dev_info_t *cl_devi; /* pointer to devinfo */ 141 struct dk_vtoc cl_vtoc; /* disk VTOC */ 142 struct dk_geom cl_g; /* disk geometry */ 143 144 diskaddr_t cl_blockcount; /* capacity */ 145 uint32_t cl_tgt_blocksize; /* blocksize */ 146 147 diskaddr_t cl_solaris_size; /* size of Solaris partition */ 148 uint_t cl_solaris_offset; /* offset to Solaris part. */ 149 150 struct dk_map cl_map[MAXPART]; /* logical partitions */ 151 /* cylno is overloaded. used */ 152 /* for starting block for EFI */ 153 154 diskaddr_t cl_offset[MAXPART]; /* partition start blocks */ 155 156 struct fmap cl_fmap[FDISK_PARTS]; /* fdisk partitions */ 157 158 uchar_t cl_asciilabel[LEN_DKL_ASCII]; /* Disk ASCII label */ 159 160 /* 161 * This is the HBAs current notion of the geometry of the drive, 162 * for HBAs that support the "geometry" property. 163 */ 164 struct cmlb_geom cl_lgeom; 165 166 /* 167 * This is the geometry of the device as reported by the MODE SENSE, 168 * command, Page 3 (Format Device Page) and Page 4 (Rigid Disk Drive 169 * Geometry Page), assuming MODE SENSE is supported by the target. 170 */ 171 struct cmlb_geom cl_pgeom; 172 173 ushort_t cl_dkg_skew; /* skew */ 174 175 cmlb_label_t cl_def_labeltype; /* default label type */ 176 177 /* label type based on which minor nodes were created last */ 178 cmlb_label_t cl_last_labeltype; 179 180 cmlb_label_t cl_cur_labeltype; /* current label type */ 181 182 /* indicates whether vtoc label is read from media */ 183 cmlb_label_t cl_label_from_media; 184 185 cmlb_state_t cl_state; /* state of handle */ 186 187 boolean_t cl_f_geometry_is_valid; 188 int cl_sys_blocksize; 189 190 kmutex_t cl_mutex; 191 192 /* the following are passed in at attach time */ 193 boolean_t cl_is_removable; /* is removable */ 194 boolean_t cl_is_hotpluggable; /* is hotpluggable */ 195 int cl_alter_behavior; 196 char *cl_node_type; /* DDI_NT_... */ 197 int cl_device_type; /* DTYPE_DIRECT,.. */ 198 int cl_reserved; /* reserved efi partition # */ 199 cmlb_tg_ops_t *cmlb_tg_ops; 200 #if defined(__i386) || defined(__amd64) 201 /* 202 * Flag indicating whether extended partition nodes should be created 203 * or not. Is set in cmlb_attach. After creating nodes in 204 * cmlb_read_fdisk, it will be unset. 205 */ 206 int cl_update_ext_minor_nodes; 207 int cl_logical_drive_count; 208 #endif /* __i386 || __amd64 */ 209 uint8_t cl_msglog_flag; /* used to enable/suppress */ 210 /* certain log messages */ 211 } cmlb_lun_t; 212 213 _NOTE(SCHEME_PROTECTS_DATA("stable data", cmlb_lun::cmlb_tg_ops)) 214 _NOTE(SCHEME_PROTECTS_DATA("stable data", cmlb_lun::cl_devi)) 215 _NOTE(SCHEME_PROTECTS_DATA("stable data", cmlb_lun::cl_is_removable)) 216 _NOTE(SCHEME_PROTECTS_DATA("stable data", cmlb_lun::cl_is_hotpluggable)) 217 _NOTE(SCHEME_PROTECTS_DATA("stable data", cmlb_lun::cl_node_type)) 218 _NOTE(SCHEME_PROTECTS_DATA("stable data", cmlb_lun::cl_sys_blocksize)) 219 _NOTE(SCHEME_PROTECTS_DATA("stable data", cmlb_lun::cl_alter_behavior)) 220 _NOTE(SCHEME_PROTECTS_DATA("private data", cmlb_geom)) 221 _NOTE(SCHEME_PROTECTS_DATA("safe sharing", cmlb_lun::cl_f_geometry_is_valid)) 222 223 _NOTE(MUTEX_PROTECTS_DATA(cmlb_lun::cl_mutex, cmlb_lun::cl_vtoc)) 224 225 226 #define DK_TG_READ(ihdlp, bufaddr, start_block, reqlength, tg_cookie)\ 227 (ihdlp->cmlb_tg_ops->tg_rdwr)(CMLB_DEVINFO(ihdlp), TG_READ, \ 228 bufaddr, start_block, reqlength, tg_cookie) 229 230 #define DK_TG_WRITE(ihdlp, bufaddr, start_block, reqlength, tg_cookie)\ 231 (ihdlp->cmlb_tg_ops->tg_rdwr)(CMLB_DEVINFO(ihdlp), TG_WRITE,\ 232 bufaddr, start_block, reqlength, tg_cookie) 233 234 #define DK_TG_GETPHYGEOM(ihdlp, phygeomp, tg_cookie) \ 235 (ihdlp->cmlb_tg_ops->tg_getinfo)(CMLB_DEVINFO(ihdlp), TG_GETPHYGEOM,\ 236 (void *)phygeomp, tg_cookie) 237 238 #define DK_TG_GETVIRTGEOM(ihdlp, virtgeomp, tg_cookie) \ 239 (ihdlp->cmlb_tg_ops->tg_getinfo)(CMLB_DEVINFO(ihdlp), TG_GETVIRTGEOM,\ 240 (void *)virtgeomp, tg_cookie) 241 242 #define DK_TG_GETCAP(ihdlp, capp, tg_cookie) \ 243 (ihdlp->cmlb_tg_ops->tg_getinfo)(CMLB_DEVINFO(ihdlp), TG_GETCAPACITY,\ 244 capp, tg_cookie) 245 246 #define DK_TG_GETBLOCKSIZE(ihdlp, lbap, tg_cookie) \ 247 (ihdlp->cmlb_tg_ops->tg_getinfo)(CMLB_DEVINFO(ihdlp),\ 248 TG_GETBLOCKSIZE, lbap, tg_cookie) 249 250 #define DK_TG_GETATTRIBUTE(ihdlp, attributep, tg_cookie) \ 251 (ihdlp->cmlb_tg_ops->tg_getinfo)(CMLB_DEVINFO(ihdlp), TG_GETATTR,\ 252 attributep, tg_cookie) 253 254 #ifdef __cplusplus 255 } 256 #endif 257 258 #endif /* _SYS_CMLB_IMPL_H */ 259