/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * This file contains functions to implement automatic configuration * of scsi disks. */ #include "global.h" #include #include #include #include #include #include #include "misc.h" #include "param.h" #include "ctlr_scsi.h" #include "auto_sense.h" #include "partition.h" #include "label.h" #include "startup.h" #include "analyze.h" #include "io.h" #include "hardware_structs.h" #include "menu_fdisk.h" #define DISK_NAME_MAX 256 extern int nctypes; extern struct ctlr_type ctlr_types[]; /* * Marker for free hog partition */ #define HOG (-1) /* * Default partition tables * * Disk capacity root swap usr * ------------- ---- ---- --- * 0mb to 64mb 0 0 remainder * 64mb to 180mb 16mb 16mb remainder * 180mb to 280mb 16mb 32mb remainder * 280mb to 380mb 24mb 32mb remainder * 380mb to 600mb 32mb 32mb remainder * 600mb to 1gb 32mb 64mb remainder * 1gb to 2gb 64mb 128mb remainder * 2gb on up 128mb 128mb remainder */ struct part_table { int partitions[NDKMAP]; }; static struct part_table part_table_64mb = { { 0, 0, 0, 0, 0, 0, HOG, 0} }; static struct part_table part_table_180mb = { { 16, 16, 0, 0, 0, 0, HOG, 0} }; static struct part_table part_table_280mb = { { 16, 32, 0, 0, 0, 0, HOG, 0} }; static struct part_table part_table_380mb = { { 24, 32, 0, 0, 0, 0, HOG, 0} }; static struct part_table part_table_600mb = { { 32, 32, 0, 0, 0, 0, HOG, 0} }; static struct part_table part_table_1gb = { { 32, 64, 0, 0, 0, 0, HOG, 0} }; static struct part_table part_table_2gb = { { 64, 128, 0, 0, 0, 0, HOG, 0} }; static struct part_table part_table_infinity = { { 128, 128, 0, 0, 0, 0, HOG, 0} }; static struct default_partitions { diskaddr_t min_capacity; diskaddr_t max_capacity; struct part_table *part_table; } default_partitions[] = { { 0, 64, &part_table_64mb }, /* 0 to 64 mb */ { 64, 180, &part_table_180mb }, /* 64 to 180 mb */ { 180, 280, &part_table_280mb }, /* 180 to 280 mb */ { 280, 380, &part_table_380mb }, /* 280 to 380 mb */ { 380, 600, &part_table_600mb }, /* 380 to 600 mb */ { 600, 1024, &part_table_1gb }, /* 600 to 1 gb */ { 1024, 2048, &part_table_2gb }, /* 1 to 2 gb */ { 2048, INFINITY, &part_table_infinity }, /* 2 gb on up */ }; #define DEFAULT_PARTITION_TABLE_SIZE \ (sizeof (default_partitions) / sizeof (struct default_partitions)) /* * msgs for check() */ #define FORMAT_MSG "Auto configuration via format.dat" #define GENERIC_MSG "Auto configuration via generic SCSI-2" /* * Disks on symbios(Hardwire raid controller) return a fixed number * of heads(64)/cylinders(64) and adjust the cylinders depending * capacity of the configured lun. * In such a case we get number of physical cylinders < 3 which * is the minimum required by solaris(2 reserved + 1 data cylinders). * Hence try to adjust the cylinders by reducing the "nsect/nhead". * */ /* * assuming a minimum of 32 block cylinders. */ #define MINIMUM_NO_HEADS 2 #define MINIMUM_NO_SECTORS 16 #define MINIMUM_NO_CYLINDERS 128 #if defined(_SUNOS_VTOC_8) /* These are 16-bit fields */ #define MAXIMUM_NO_HEADS 65535 #define MAXIMUM_NO_SECTORS 65535 #define MAXIMUM_NO_CYLINDERS 65535 #endif /* defined(_SUNOS_VTOC_8) */ /* * minimum number of cylinders required by Solaris. */ #define SUN_MIN_CYL 3 /* * ANSI prototypes for local static functions */ static struct disk_type *generic_disk_sense( int fd, int can_prompt, struct dk_label *label, struct scsi_inquiry *inquiry, struct scsi_capacity_16 *capacity, char *disk_name); static int use_existing_disk_type( int fd, int can_prompt, struct dk_label *label, struct scsi_inquiry *inquiry, struct disk_type *disk_type, struct scsi_capacity_16 *capacity); int build_default_partition(struct dk_label *label, int ctrl_type); static struct disk_type *find_scsi_disk_type( char *disk_name, struct dk_label *label); static struct disk_type *find_scsi_disk_by_name( char *disk_name); static struct ctlr_type *find_scsi_ctlr_type(void); static struct ctlr_info *find_scsi_ctlr_info( struct dk_cinfo *dkinfo); static struct disk_type *new_scsi_disk_type( int fd, char *disk_name, struct dk_label *label); static struct disk_info *find_scsi_disk_info( struct dk_cinfo *dkinfo); static struct disk_type *new_direct_disk_type(int fd, char *disk_name, struct dk_label *label); static struct disk_info *find_direct_disk_info(struct dk_cinfo *dkinfo); static int efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc); static int auto_label_init(struct dk_label *label); static struct ctlr_type *find_direct_ctlr_type(void); static struct ctlr_info *find_direct_ctlr_info(struct dk_cinfo *dkinfo); static struct disk_info *find_direct_disk_info(struct dk_cinfo *dkinfo); static struct ctlr_type *find_vbd_ctlr_type(void); static struct ctlr_info *find_vbd_ctlr_info(struct dk_cinfo *dkinfo); static struct disk_info *find_vbd_disk_info(struct dk_cinfo *dkinfo); static char *get_sun_disk_name( char *disk_name, struct scsi_inquiry *inquiry); static char *get_generic_disk_name( char *disk_name, struct scsi_inquiry *inquiry); static char *strcopy( char *dst, char *src, int n); static int adjust_disk_geometry(diskaddr_t capacity, uint_t *cyl, uint_t *nsect, uint_t *nhead); static void compute_chs_values(diskaddr_t total_capacity, diskaddr_t usable_capacity, uint_t *pcylp, uint_t *nheadp, uint_t *nsectp); #if defined(_SUNOS_VTOC_8) static diskaddr_t square_box( diskaddr_t capacity, uint_t *dim1, uint_t lim1, uint_t *dim2, uint_t lim2, uint_t *dim3, uint_t lim3); #endif /* defined(_SUNOS_VTOC_8) */ /* * We need to get information necessary to construct a *new* efi * label type */ struct disk_type * auto_efi_sense(int fd, struct efi_info *label) { struct dk_gpt *vtoc; int i; struct disk_type *disk, *dp; struct disk_info *disk_info; struct ctlr_info *ctlr; struct dk_cinfo dkinfo; struct partition_info *part; /* * get vendor, product, revision and capacity info. */ if (get_disk_info(fd, label) == -1) { return ((struct disk_type *)NULL); } /* * Now build the default partition table */ if (efi_alloc_and_init(fd, EFI_NUMPAR, &vtoc) != 0) { err_print("efi_alloc_and_init failed. \n"); return ((struct disk_type *)NULL); } label->e_parts = vtoc; /* * Create a whole hog EFI partition table: * S0 takes the whole disk except the primary EFI label, * backup EFI label, and the reserved partition. */ vtoc->efi_parts[0].p_tag = V_USR; vtoc->efi_parts[0].p_start = vtoc->efi_first_u_lba; vtoc->efi_parts[0].p_size = vtoc->efi_last_u_lba - vtoc->efi_first_u_lba - EFI_MIN_RESV_SIZE + 1; /* * S1-S6 are unassigned slices. */ for (i = 1; i < vtoc->efi_nparts - 2; i ++) { vtoc->efi_parts[i].p_tag = V_UNASSIGNED; vtoc->efi_parts[i].p_start = 0; vtoc->efi_parts[i].p_size = 0; } /* * The reserved slice */ vtoc->efi_parts[vtoc->efi_nparts - 1].p_tag = V_RESERVED; vtoc->efi_parts[vtoc->efi_nparts - 1].p_start = vtoc->efi_last_u_lba - EFI_MIN_RESV_SIZE + 1; vtoc->efi_parts[vtoc->efi_nparts - 1].p_size = EFI_MIN_RESV_SIZE; /* * Now stick all of it into the disk_type struct */ if (ioctl(fd, DKIOCINFO, &dkinfo) == -1) { if (option_msg && diag_msg) { err_print("DKIOCINFO failed\n"); } return (NULL); } if ((cur_ctype != NULL) && (cur_ctype->ctype_ctype == DKC_DIRECT)) { ctlr = find_direct_ctlr_info(&dkinfo); disk_info = find_direct_disk_info(&dkinfo); } else if ((cur_ctype != NULL) && (cur_ctype->ctype_ctype == DKC_VBD)) { ctlr = find_vbd_ctlr_info(&dkinfo); disk_info = find_vbd_disk_info(&dkinfo); } else { ctlr = find_scsi_ctlr_info(&dkinfo); disk_info = find_scsi_disk_info(&dkinfo); } disk = (struct disk_type *)zalloc(sizeof (struct disk_type)); assert(disk_info->disk_ctlr == ctlr); dp = ctlr->ctlr_ctype->ctype_dlist; if (dp == NULL) { ctlr->ctlr_ctype->ctype_dlist = dp; } else { while (dp->dtype_next != NULL) { dp = dp->dtype_next; } dp->dtype_next = disk; } disk->dtype_next = NULL; (void) strlcpy(disk->vendor, label->vendor, sizeof (disk->vendor)); (void) strlcpy(disk->product, label->product, sizeof (disk->product)); (void) strlcpy(disk->revision, label->revision, sizeof (disk->revision)); disk->capacity = label->capacity; part = (struct partition_info *) zalloc(sizeof (struct partition_info)); disk->dtype_plist = part; part->pinfo_name = alloc_string("default"); part->pinfo_next = NULL; part->etoc = vtoc; bzero(disk_info->v_volume, LEN_DKL_VVOL); disk_info->disk_parts = part; return (disk); } static int efi_ioctl(int fd, int cmd, dk_efi_t *dk_ioc) { void *data = dk_ioc->dki_data; int error; dk_ioc->dki_data_64 = (uint64_t)(uintptr_t)data; error = ioctl(fd, cmd, (void *)dk_ioc); dk_ioc->dki_data = data; return (error); } static struct ctlr_type * find_direct_ctlr_type() { struct mctlr_list *mlp; mlp = controlp; while (mlp != NULL) { if (mlp->ctlr_type->ctype_ctype == DKC_DIRECT) { return (mlp->ctlr_type); } mlp = mlp->next; } impossible("no DIRECT controller type"); return ((struct ctlr_type *)NULL); } static struct ctlr_type * find_vbd_ctlr_type() { struct mctlr_list *mlp; mlp = controlp; while (mlp != NULL) { if (mlp->ctlr_type->ctype_ctype == DKC_VBD) { return (mlp->ctlr_type); } mlp = mlp->next; } impossible("no VBD controller type"); return ((struct ctlr_type *)NULL); } static struct ctlr_info * find_direct_ctlr_info( struct dk_cinfo *dkinfo) { struct ctlr_info *ctlr; if (dkinfo->dki_ctype != DKC_DIRECT) return (NULL); for (ctlr = ctlr_list; ctlr != NULL; ctlr = ctlr->ctlr_next) { if (ctlr->ctlr_addr == dkinfo->dki_addr && ctlr->ctlr_space == dkinfo->dki_space && ctlr->ctlr_ctype->ctype_ctype == DKC_DIRECT) { return (ctlr); } } impossible("no DIRECT controller info"); /*NOTREACHED*/ } static struct ctlr_info * find_vbd_ctlr_info( struct dk_cinfo *dkinfo) { struct ctlr_info *ctlr; if (dkinfo->dki_ctype != DKC_VBD) return (NULL); for (ctlr = ctlr_list; ctlr != NULL; ctlr = ctlr->ctlr_next) { if (ctlr->ctlr_addr == dkinfo->dki_addr && ctlr->ctlr_space == dkinfo->dki_space && ctlr->ctlr_ctype->ctype_ctype == DKC_VBD) { return (ctlr); } } impossible("no VBD controller info"); /*NOTREACHED*/ } static struct disk_info * find_direct_disk_info( struct dk_cinfo *dkinfo) { struct disk_info *disk; struct dk_cinfo *dp; for (disk = disk_list; disk != NULL; disk = disk->disk_next) { assert(dkinfo->dki_ctype == DKC_DIRECT); dp = &disk->disk_dkinfo; if (dp->dki_ctype == dkinfo->dki_ctype && dp->dki_cnum == dkinfo->dki_cnum && dp->dki_unit == dkinfo->dki_unit && strcmp(dp->dki_dname, dkinfo->dki_dname) == 0) { return (disk); } } impossible("No DIRECT disk info instance\n"); /*NOTREACHED*/ } static struct disk_info * find_vbd_disk_info( struct dk_cinfo *dkinfo) { struct disk_info *disk; struct dk_cinfo *dp; for (disk = disk_list; disk != NULL; disk = disk->disk_next) { assert(dkinfo->dki_ctype == DKC_VBD); dp = &disk->disk_dkinfo; if (dp->dki_ctype == dkinfo->dki_ctype && dp->dki_cnum == dkinfo->dki_cnum && dp->dki_unit == dkinfo->dki_unit && strcmp(dp->dki_dname, dkinfo->dki_dname) == 0) { return (disk); } } impossible("No VBD disk info instance\n"); /*NOTREACHED*/ } /* * To convert EFI to SMI labels, we need to get label geometry. * Unfortunately at this time there is no good way to do so. * DKIOCGGEOM will fail if disk is EFI labeled. So we hack around * it and clear EFI label, do a DKIOCGGEOM and put the EFI label * back on disk. * This routine gets the label geometry and initializes the label * It uses cur_file as opened device. * returns 0 if succeeds or -1 if failed. */ static int auto_label_init(struct dk_label *label) { dk_efi_t dk_ioc; dk_efi_t dk_ioc_back; efi_gpt_t *data = NULL; efi_gpt_t *databack = NULL; struct dk_geom disk_geom; struct dk_minfo disk_info; efi_gpt_t *backsigp; int fd = cur_file; int rval = -1; int efisize = EFI_LABEL_SIZE * 2; int success = 0; uint64_t sig; uint64_t backsig; if ((data = calloc(efisize, 1)) == NULL) { err_print("auto_label_init: calloc failed\n"); goto auto_label_init_out; } dk_ioc.dki_data = data; dk_ioc.dki_lba = 1; dk_ioc.dki_length = efisize; if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc) != 0) { err_print("auto_label_init: GETEFI failed\n"); goto auto_label_init_out; } if ((databack = calloc(efisize, 1)) == NULL) { err_print("auto_label_init calloc2 failed"); goto auto_label_init_out; } /* get the LBA size and capacity */ if (ioctl(fd, DKIOCGMEDIAINFO, (caddr_t)&disk_info) == -1) { err_print("auto_label_init: dkiocgmediainfo failed\n"); goto auto_label_init_out; } if (disk_info.dki_lbsize == 0) { if (option_msg && diag_msg) { err_print("auto_lbal_init: assuming 512 byte" "block size"); } disk_info.dki_lbsize = DEV_BSIZE; } dk_ioc_back.dki_data = databack; /* * back up efi label goes to capacity - 1, we are reading an extra block * before the back up label. */ dk_ioc_back.dki_lba = disk_info.dki_capacity - 1 - 1; dk_ioc_back.dki_length = efisize; if (efi_ioctl(fd, DKIOCGETEFI, &dk_ioc_back) != 0) { err_print("auto_label_init: GETEFI backup failed\n"); goto auto_label_init_out; } sig = dk_ioc.dki_data->efi_gpt_Signature; dk_ioc.dki_data->efi_gpt_Signature = 0x0; enter_critical(); if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc) == -1) { err_print("auto_label_init: SETEFI failed\n"); exit_critical(); goto auto_label_init_out; } backsigp = (efi_gpt_t *)((uintptr_t)dk_ioc_back.dki_data + cur_blksz); backsig = backsigp->efi_gpt_Signature; backsigp->efi_gpt_Signature = 0; if (efi_ioctl(fd, DKIOCSETEFI, &dk_ioc_back) == -1) { err_print("auto_label_init: SETEFI backup failed\n"); } if (ioctl(cur_file, DKIOCGGEOM, &disk_geom) != 0) err_print("auto_label_init: GGEOM failed\n"); else success = 1; dk_ioc.dki_data->efi_gpt_Signature = sig; backsigp->efi_gpt_Signature = backsig; if (efi_ioctl(cur_file, DKIOCSETEFI, &dk_ioc_back) == -1) { err_print("auto_label_init: SETEFI revert backup failed\n"); success = 0; } if (efi_ioctl(cur_file, DKIOCSETEFI, &dk_ioc) == -1) { err_print("auto_label_init: SETEFI revert failed\n"); success = 0; } exit_critical(); if (success == 0) goto auto_label_init_out; ncyl = disk_geom.dkg_ncyl; acyl = disk_geom.dkg_acyl; nhead = disk_geom.dkg_nhead; nsect = disk_geom.dkg_nsect; pcyl = ncyl + acyl; label->dkl_pcyl = pcyl; label->dkl_ncyl = ncyl; label->dkl_acyl = acyl; label->dkl_nhead = nhead; label->dkl_nsect = nsect; label->dkl_apc = 0; label->dkl_intrlv = 1; label->dkl_rpm = disk_geom.dkg_rpm; label->dkl_magic = DKL_MAGIC; (void) snprintf(label->dkl_asciilabel, sizeof (label->dkl_asciilabel), "%s cyl %u alt %u hd %u sec %u", "DEFAULT", ncyl, acyl, nhead, nsect); rval = 0; #if defined(_FIRMWARE_NEEDS_FDISK) (void) auto_solaris_part(label); ncyl = label->dkl_ncyl; #endif /* defined(_FIRMWARE_NEEDS_FDISK) */ if (!build_default_partition(label, DKC_DIRECT)) { rval = -1; } (void) checksum(label, CK_MAKESUM); auto_label_init_out: if (data) free(data); if (databack) free(databack); return (rval); } static struct disk_type * new_direct_disk_type( int fd, char *disk_name, struct dk_label *label) { struct disk_type *dp; struct disk_type *disk; struct ctlr_info *ctlr; struct dk_cinfo dkinfo; struct partition_info *part = NULL; struct partition_info *pt; struct disk_info *disk_info; int i; /* * Get the disk controller info for this disk */ if (ioctl(fd, DKIOCINFO, &dkinfo) == -1) { if (option_msg && diag_msg) { err_print("DKIOCINFO failed\n"); } return (NULL); } /* * Find the ctlr_info for this disk. */ ctlr = find_direct_ctlr_info(&dkinfo); /* * Allocate a new disk type for the direct controller. */ disk = (struct disk_type *)zalloc(sizeof (struct disk_type)); /* * Find the disk_info instance for this disk. */ disk_info = find_direct_disk_info(&dkinfo); /* * The controller and the disk should match. */ assert(disk_info->disk_ctlr == ctlr); /* * Link the disk into the list of disks */ dp = ctlr->ctlr_ctype->ctype_dlist; if (dp == NULL) { ctlr->ctlr_ctype->ctype_dlist = dp; } else { while (dp->dtype_next != NULL) { dp = dp->dtype_next; } dp->dtype_next = disk; } disk->dtype_next = NULL; /* * Allocate and initialize the disk name. */ disk->dtype_asciilabel = alloc_string(disk_name); /* * Initialize disk geometry info */ disk->dtype_pcyl = label->dkl_pcyl; disk->dtype_ncyl = label->dkl_ncyl; disk->dtype_acyl = label->dkl_acyl; disk->dtype_nhead = label->dkl_nhead; disk->dtype_nsect = label->dkl_nsect; disk->dtype_rpm = label->dkl_rpm; part = (struct partition_info *) zalloc(sizeof (struct partition_info)); pt = disk->dtype_plist; if (pt == NULL) { disk->dtype_plist = part; } else { while (pt->pinfo_next != NULL) { pt = pt->pinfo_next; } pt->pinfo_next = part; } part->pinfo_next = NULL; /* * Set up the partition name */ part->pinfo_name = alloc_string("default"); /* * Fill in the partition info from the label */ for (i = 0; i < NDKMAP; i++) { #if defined(_SUNOS_VTOC_8) part->pinfo_map[i] = label->dkl_map[i]; #elif defined(_SUNOS_VTOC_16) part->pinfo_map[i].dkl_cylno = label->dkl_vtoc.v_part[i].p_start / ((blkaddr_t)(disk->dtype_nhead * disk->dtype_nsect - apc)); part->pinfo_map[i].dkl_nblk = label->dkl_vtoc.v_part[i].p_size; #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_8) */ } /* * Use the VTOC if valid, or install a default */ if (label->dkl_vtoc.v_version == V_VERSION) { (void) memcpy(disk_info->v_volume, label->dkl_vtoc.v_volume, LEN_DKL_VVOL); part->vtoc = label->dkl_vtoc; } else { (void) memset(disk_info->v_volume, 0, LEN_DKL_VVOL); set_vtoc_defaults(part); } /* * Link the disk to the partition map */ disk_info->disk_parts = part; return (disk); } /* * Get a disk type that has label info. This is used to convert * EFI label to SMI label */ struct disk_type * auto_direct_get_geom_label(int fd, struct dk_label *label) { struct disk_type *disk_type; if (auto_label_init(label) != 0) { err_print("auto_direct_get_geom_label: failed to get label" "geometry"); return (NULL); } else { disk_type = new_direct_disk_type(fd, "DEFAULT", label); return (disk_type); } } /* * Auto-sense a scsi disk configuration, ie get the information * necessary to construct a label. We have two different * ways to auto-sense a scsi disk: * - format.dat override, via inquiry name * - generic scsi, via standard mode sense and inquiry * Depending on how and when we are called, and/or * change geometry and reformat. */ struct disk_type * auto_sense( int fd, int can_prompt, struct dk_label *label) { struct scsi_inquiry inquiry; struct scsi_capacity_16 capacity; struct disk_type *disk_type; char disk_name[DISK_NAME_MAX]; int force_format_dat = 0; int force_generic = 0; u_ioparam_t ioparam; int deflt; /* * First, if expert mode, find out if the user * wants to override any of the standard methods. */ if (can_prompt && expert_mode) { deflt = 1; ioparam.io_charlist = confirm_list; if (input(FIO_MSTR, FORMAT_MSG, '?', &ioparam, &deflt, DATA_INPUT) == 0) { force_format_dat = 1; } else if (input(FIO_MSTR, GENERIC_MSG, '?', &ioparam, &deflt, DATA_INPUT) == 0) { force_generic = 1; } } /* * Get the Inquiry data. If this fails, there's * no hope for this disk, so give up. */ if (uscsi_inquiry(fd, (char *)&inquiry, sizeof (inquiry))) { return ((struct disk_type *)NULL); } if (option_msg && diag_msg) { err_print("Product id: "); print_buf(inquiry.inq_pid, sizeof (inquiry.inq_pid)); err_print("\n"); } /* * Get the Read Capacity */ if (uscsi_read_capacity(fd, &capacity)) { return ((struct disk_type *)NULL); } /* * If the reported capacity is set to zero, then the disk * is not usable. If the reported capacity is set to all * 0xf's, then this disk is too large. These could only * happen with a device that supports LBAs larger than 64 * bits which are not defined by any current T10 standards * or by error responding from target. */ if ((capacity.sc_capacity == 0) || (capacity.sc_capacity == UINT_MAX64)) { if (option_msg && diag_msg) { err_print("Invalid capacity\n"); } return ((struct disk_type *)NULL); } if (option_msg && diag_msg) { err_print("blocks: %llu (0x%llx)\n", capacity.sc_capacity, capacity.sc_capacity); err_print("blksize: %u\n", capacity.sc_lbasize); } /* * Extract the disk name for the format.dat override */ (void) get_sun_disk_name(disk_name, &inquiry); if (option_msg && diag_msg) { err_print("disk name: `%s`\n", disk_name); } if (scsi_rdwr(DIR_READ, fd, (diskaddr_t)0, 1, (caddr_t)label, F_SILENT, NULL)) return ((struct disk_type *)NULL); /* * Figure out which method we use for auto sense. * If a particular method fails, we fall back to * the next possibility. */ if (force_generic) { return (generic_disk_sense(fd, can_prompt, label, &inquiry, &capacity, disk_name)); } /* * Try for an existing format.dat first */ if ((disk_type = find_scsi_disk_by_name(disk_name)) != NULL) { if (use_existing_disk_type(fd, can_prompt, label, &inquiry, disk_type, &capacity)) { return (disk_type); } if (force_format_dat) { return (NULL); } } /* * Otherwise, try using generic SCSI-2 sense and inquiry. */ return (generic_disk_sense(fd, can_prompt, label, &inquiry, &capacity, disk_name)); } /*ARGSUSED*/ static struct disk_type * generic_disk_sense( int fd, int can_prompt, struct dk_label *label, struct scsi_inquiry *inquiry, struct scsi_capacity_16 *capacity, char *disk_name) { struct disk_type *disk; int setdefault = 0; uint_t pcyl = 0; uint_t ncyl = 0; uint_t acyl = 0; uint_t nhead = 0; uint_t nsect = 0; int rpm = 0; diskaddr_t nblocks = 0; diskaddr_t tblocks = 0; union { struct mode_format page3; uchar_t buf3[MAX_MODE_SENSE_SIZE]; } u_page3; union { struct mode_geometry page4; uchar_t buf4[MAX_MODE_SENSE_SIZE]; } u_page4; struct mode_format *page3 = &u_page3.page3; struct mode_geometry *page4 = &u_page4.page4; struct scsi_ms_header header; /* * If the name of this disk appears to be "SUN", use it, * otherwise construct a name out of the generic * Inquiry info. If it turns out that we already * have a SUN disk type of this name that differs * in geometry, we will revert to the generic name * anyway. */ if (memcmp(disk_name, "SUN", strlen("SUN")) != 0) { (void) get_generic_disk_name(disk_name, inquiry); } /* * Get the number of blocks from Read Capacity data. Note that * the logical block address range from 0 to capacity->sc_capacity. * Limit the size to 2 TB (UINT32_MAX) to use with SMI labels. */ tblocks = (capacity->sc_capacity + 1); if (tblocks > UINT32_MAX) nblocks = UINT32_MAX; else nblocks = tblocks; /* * Get current Page 3 - Format Parameters page */ if (uscsi_mode_sense(fd, DAD_MODE_FORMAT, MODE_SENSE_PC_CURRENT, (caddr_t)&u_page3, MAX_MODE_SENSE_SIZE, &header)) { setdefault = 1; } /* * Get current Page 4 - Drive Geometry page */ if (uscsi_mode_sense(fd, DAD_MODE_GEOMETRY, MODE_SENSE_PC_CURRENT, (caddr_t)&u_page4, MAX_MODE_SENSE_SIZE, &header)) { setdefault = 1; } if (setdefault != 1) { /* The inquiry of mode page 3 & page 4 are successful */ /* * Correct for byte order if necessary */ page4->rpm = BE_16(page4->rpm); page4->step_rate = BE_16(page4->step_rate); page3->tracks_per_zone = BE_16(page3->tracks_per_zone); page3->alt_sect_zone = BE_16(page3->alt_sect_zone); page3->alt_tracks_zone = BE_16(page3->alt_tracks_zone); page3->alt_tracks_vol = BE_16(page3->alt_tracks_vol); page3->sect_track = BE_16(page3->sect_track); page3->data_bytes_sect = BE_16(page3->data_bytes_sect); page3->interleave = BE_16(page3->interleave); page3->track_skew = BE_16(page3->track_skew); page3->cylinder_skew = BE_16(page3->cylinder_skew); /* * Construct a new label out of the sense data, * Inquiry and Capacity. * * If the disk capacity is > 1TB then simply compute * the CHS values based on the total disk capacity and * not use the values from mode-sense data. */ if (tblocks > INT32_MAX) { compute_chs_values(tblocks, nblocks, &pcyl, &nhead, &nsect); } else { pcyl = (page4->cyl_ub << 16) + (page4->cyl_mb << 8) + page4->cyl_lb; nhead = page4->heads; nsect = page3->sect_track; } rpm = page4->rpm; /* * If the number of physical cylinders reported is less * the SUN_MIN_CYL(3) then try to adjust the geometry so that * we have atleast SUN_MIN_CYL cylinders. */ if (pcyl < SUN_MIN_CYL) { if (nhead == 0 || nsect == 0) { setdefault = 1; } else if (adjust_disk_geometry( (diskaddr_t)(capacity->sc_capacity + 1), &pcyl, &nhead, &nsect)) { setdefault = 1; } } } /* * Mode sense page 3 and page 4 are obsolete in SCSI-3. For * newly developed large sector size disk, we will not rely on * those two pages but compute geometry directly. */ if ((setdefault == 1) || (capacity->sc_lbasize != DEV_BSIZE)) { /* * If the number of cylinders or the number of heads reported * is zero, we think the inquiry of page 3 and page 4 failed. * We will set the geometry infomation by ourselves. */ compute_chs_values(tblocks, nblocks, &pcyl, &nhead, &nsect); } /* * The sd driver reserves 2 cylinders the backup disk label and * the deviceid. Set the number of data cylinders to pcyl-acyl. */ acyl = DK_ACYL; ncyl = pcyl - acyl; if (option_msg && diag_msg) { err_print("Geometry:\n"); err_print(" pcyl: %u\n", pcyl); err_print(" ncyl: %u\n", ncyl); err_print(" heads: %u\n", nhead); err_print(" nsects: %u\n", nsect); err_print(" acyl: %u\n", acyl); #if defined(_SUNOS_VTOC_16) err_print(" bcyl: %u\n", bcyl); #endif /* defined(_SUNOS_VTOC_16) */ err_print(" rpm: %d\n", rpm); err_print(" nblocks: %llu\n", nblocks); } /* * Some drives do not support page4 or report 0 for page4->rpm, * adjust it to AVG_RPM, 3600. */ if (rpm < MIN_RPM || rpm > MAX_RPM) { if (option_msg && diag_msg) err_print("The current rpm value %d is invalid," " adjusting it to %d\n", rpm, AVG_RPM); rpm = AVG_RPM; } /* * Some drives report 0 for nsect (page 3, byte 10 and 11) if they * have variable number of sectors per track. So adjust nsect. * Also the value is defined as vendor specific, hence check if * it is in a tolerable range. The values (32 and 4 below) are * chosen so that this change below does not generate a different * geometry for currently supported sun disks. */ if ((nsect == 0) || ((diskaddr_t)pcyl * nhead * nsect) < (nblocks - nblocks/32) || ((diskaddr_t)pcyl * nhead * nsect) > (nblocks + nblocks/4)) { if (nblocks > (pcyl * nhead)) { err_print("Mode sense page(3) reports nsect value" " as %d, adjusting it to %llu\n", nsect, nblocks / (pcyl * nhead)); nsect = nblocks / (pcyl * nhead); } else { /* convert capacity to nsect * nhead * pcyl */ err_print("\nWARNING: Disk geometry is based on " "capacity data.\n\n"); compute_chs_values(tblocks, nblocks, &pcyl, &nhead, &nsect); ncyl = pcyl - acyl; if (option_msg && diag_msg) { err_print("Geometry:(after adjustment)\n"); err_print(" pcyl: %u\n", pcyl); err_print(" ncyl: %u\n", ncyl); err_print(" heads: %u\n", nhead); err_print(" nsects: %u\n", nsect); err_print(" acyl: %u\n", acyl); #if defined(_SUNOS_VTOC_16) err_print(" bcyl: %u\n", bcyl); #endif err_print(" rpm: %d\n", rpm); err_print(" nblocks: %llu\n", nblocks); } } } /* * Some drives report their physical geometry such that * it is greater than the actual capacity. Adjust the * geometry to allow for this, so we don't run off * the end of the disk. */ if (((diskaddr_t)pcyl * nhead * nsect) > nblocks) { uint_t p = pcyl; if (option_msg && diag_msg) { err_print("Computed capacity (%llu) exceeds actual " "disk capacity (%llu)\n", (diskaddr_t)pcyl * nhead * nsect, nblocks); } do { pcyl--; } while (((diskaddr_t)pcyl * nhead * nsect) > nblocks); if (can_prompt && expert_mode && !option_f) { /* * Try to adjust nsect instead of pcyl to see if we * can optimize. For compatability reasons do this * only in expert mode (refer to bug 1144812). */ uint_t n = nsect; do { n--; } while (((diskaddr_t)p * nhead * n) > nblocks); if (((diskaddr_t)p * nhead * n) > ((diskaddr_t)pcyl * nhead * nsect)) { u_ioparam_t ioparam; int deflt = 1; /* * Ask the user for a choice here. */ ioparam.io_bounds.lower = 1; ioparam.io_bounds.upper = 2; err_print("1. Capacity = %llu, with pcyl = %u " "nhead = %u nsect = %u\n", ((diskaddr_t)pcyl * nhead * nsect), pcyl, nhead, nsect); err_print("2. Capacity = %llu, with pcyl = %u " "nhead = %u nsect = %u\n", ((diskaddr_t)p * nhead * n), p, nhead, n); if (input(FIO_INT, "Select one of the above " "choices ", ':', &ioparam, &deflt, DATA_INPUT) == 2) { pcyl = p; nsect = n; } } } } #if defined(_SUNOS_VTOC_8) /* * Finally, we need to make sure we don't overflow any of the * fields in our disk label. To do this we need to `square * the box' so to speak. We will lose bits here. */ if ((pcyl > MAXIMUM_NO_CYLINDERS && ((nsect > MAXIMUM_NO_SECTORS) || (nhead > MAXIMUM_NO_HEADS))) || ((nsect > MAXIMUM_NO_SECTORS) && (nhead > MAXIMUM_NO_HEADS))) { err_print("This disk is too big to label. " " You will lose some blocks.\n"); } if ((pcyl > MAXIMUM_NO_CYLINDERS) || (nsect > MAXIMUM_NO_SECTORS) || (nhead > MAXIMUM_NO_HEADS)) { u_ioparam_t ioparam; int order; char msg[256]; order = ((pcyl > nhead)<<2) | ((pcyl > nsect)<<1) | (nhead > nsect); switch (order) { case 0x7: /* pcyl > nhead > nsect */ nblocks = square_box(nblocks, &pcyl, MAXIMUM_NO_CYLINDERS, &nhead, MAXIMUM_NO_HEADS, &nsect, MAXIMUM_NO_SECTORS); break; case 0x6: /* pcyl > nsect > nhead */ nblocks = square_box(nblocks, &pcyl, MAXIMUM_NO_CYLINDERS, &nsect, MAXIMUM_NO_SECTORS, &nhead, MAXIMUM_NO_HEADS); break; case 0x4: /* nsect > pcyl > nhead */ nblocks = square_box(nblocks, &nsect, MAXIMUM_NO_SECTORS, &pcyl, MAXIMUM_NO_CYLINDERS, &nhead, MAXIMUM_NO_HEADS); break; case 0x0: /* nsect > nhead > pcyl */ nblocks = square_box(nblocks, &nsect, MAXIMUM_NO_SECTORS, &nhead, MAXIMUM_NO_HEADS, &pcyl, MAXIMUM_NO_CYLINDERS); break; case 0x3: /* nhead > pcyl > nsect */ nblocks = square_box(nblocks, &nhead, MAXIMUM_NO_HEADS, &pcyl, MAXIMUM_NO_CYLINDERS, &nsect, MAXIMUM_NO_SECTORS); break; case 0x1: /* nhead > nsect > pcyl */ nblocks = square_box(nblocks, &nhead, MAXIMUM_NO_HEADS, &nsect, MAXIMUM_NO_SECTORS, &pcyl, MAXIMUM_NO_CYLINDERS); break; default: /* How did we get here? */ impossible("label overflow adjustment"); /* Do something useful */ nblocks = square_box(nblocks, &nhead, MAXIMUM_NO_HEADS, &nsect, MAXIMUM_NO_SECTORS, &pcyl, MAXIMUM_NO_CYLINDERS); break; } if (option_msg && diag_msg && (capacity->sc_capacity + 1 != nblocks)) { err_print("After adjusting geometry you lost" " %llu of %llu blocks.\n", (capacity->sc_capacity + 1 - nblocks), capacity->sc_capacity + 1); } while (can_prompt && expert_mode && !option_f) { int deflt = 1; /* * Allow user to modify this by hand if desired. */ (void) sprintf(msg, "\nGeometry: %u heads, %u sectors %u cylinders" " result in %llu out of %llu blocks.\n" "Do you want to modify the device geometry", nhead, nsect, pcyl, nblocks, capacity->sc_capacity + 1); ioparam.io_charlist = confirm_list; if (input(FIO_MSTR, msg, '?', &ioparam, &deflt, DATA_INPUT) != 0) break; ioparam.io_bounds.lower = MINIMUM_NO_HEADS; ioparam.io_bounds.upper = MAXIMUM_NO_HEADS; nhead = input(FIO_INT, "Number of heads", ':', &ioparam, (int *)&nhead, DATA_INPUT); ioparam.io_bounds.lower = MINIMUM_NO_SECTORS; ioparam.io_bounds.upper = MAXIMUM_NO_SECTORS; nsect = input(FIO_INT, "Number of sectors per track", ':', &ioparam, (int *)&nsect, DATA_INPUT); ioparam.io_bounds.lower = SUN_MIN_CYL; ioparam.io_bounds.upper = MAXIMUM_NO_CYLINDERS; pcyl = input(FIO_INT, "Number of cylinders", ':', &ioparam, (int *)&pcyl, DATA_INPUT); nblocks = (diskaddr_t)nhead * nsect * pcyl; if (nblocks > capacity->sc_capacity + 1) { err_print("Warning: %llu blocks exceeds " "disk capacity of %llu blocks\n", nblocks, capacity->sc_capacity + 1); } } } #endif /* defined(_SUNOS_VTOC_8) */ ncyl = pcyl - acyl; if (option_msg && diag_msg) { err_print("\nGeometry after adjusting for capacity:\n"); err_print(" pcyl: %u\n", pcyl); err_print(" ncyl: %u\n", ncyl); err_print(" heads: %u\n", nhead); err_print(" nsects: %u\n", nsect); err_print(" acyl: %u\n", acyl); err_print(" rpm: %d\n", rpm); } (void) memset((char *)label, 0, sizeof (struct dk_label)); label->dkl_magic = DKL_MAGIC; (void) snprintf(label->dkl_asciilabel, sizeof (label->dkl_asciilabel), "%s cyl %u alt %u hd %u sec %u", disk_name, ncyl, acyl, nhead, nsect); label->dkl_pcyl = pcyl; label->dkl_ncyl = ncyl; label->dkl_acyl = acyl; label->dkl_nhead = nhead; label->dkl_nsect = nsect; label->dkl_apc = 0; label->dkl_intrlv = 1; label->dkl_rpm = rpm; #if defined(_FIRMWARE_NEEDS_FDISK) if (auto_solaris_part(label) == -1) goto err; ncyl = label->dkl_ncyl; #endif /* defined(_FIRMWARE_NEEDS_FDISK) */ if (!build_default_partition(label, DKC_SCSI_CCS)) { goto err; } (void) checksum(label, CK_MAKESUM); /* * Find an existing disk type defined for this disk. * For this to work, both the name and geometry must * match. If there is no such type, but there already * is a disk defined with that name, but with a different * geometry, construct a new generic disk name out of * the inquiry information. Whatever name we're * finally using, if there's no such disk type defined, * build a new disk definition. */ if ((disk = find_scsi_disk_type(disk_name, label)) == NULL) { if (find_scsi_disk_by_name(disk_name) != NULL) { char old_name[DISK_NAME_MAX]; (void) strcpy(old_name, disk_name); (void) get_generic_disk_name(disk_name, inquiry); if (option_msg && diag_msg) { err_print( "Changing disk type name from '%s' to '%s'\n", old_name, disk_name); } (void) snprintf(label->dkl_asciilabel, sizeof (label->dkl_asciilabel), "%s cyl %u alt %u hd %u sec %u", disk_name, ncyl, acyl, nhead, nsect); (void) checksum(label, CK_MAKESUM); disk = find_scsi_disk_type(disk_name, label); } if (disk == NULL) { disk = new_scsi_disk_type(fd, disk_name, label); if (disk == NULL) goto err; } } return (disk); err: if (option_msg && diag_msg) { err_print( "Configuration via generic SCSI-2 information failed\n"); } return (NULL); } /*ARGSUSED*/ static int use_existing_disk_type( int fd, int can_prompt, struct dk_label *label, struct scsi_inquiry *inquiry, struct disk_type *disk_type, struct scsi_capacity_16 *capacity) { int pcyl; int acyl; int nhead; int nsect; int rpm; /* * Construct a new label out of the format.dat */ pcyl = disk_type->dtype_pcyl; acyl = disk_type->dtype_acyl; ncyl = disk_type->dtype_ncyl; nhead = disk_type->dtype_nhead; nsect = disk_type->dtype_nsect; rpm = disk_type->dtype_rpm; if (option_msg && diag_msg) { err_print("Format.dat geometry:\n"); err_print(" pcyl: %u\n", pcyl); err_print(" heads: %u\n", nhead); err_print(" nsects: %u\n", nsect); err_print(" acyl: %u\n", acyl); err_print(" rpm: %d\n", rpm); } (void) memset((char *)label, 0, sizeof (struct dk_label)); label->dkl_magic = DKL_MAGIC; (void) snprintf(label->dkl_asciilabel, sizeof (label->dkl_asciilabel), "%s cyl %u alt %u hd %u sec %u", disk_type->dtype_asciilabel, ncyl, acyl, nhead, nsect); label->dkl_pcyl = pcyl; label->dkl_ncyl = ncyl; label->dkl_acyl = acyl; label->dkl_nhead = nhead; label->dkl_nsect = nsect; label->dkl_apc = 0; label->dkl_intrlv = 1; label->dkl_rpm = rpm; if (!build_default_partition(label, DKC_SCSI_CCS)) { goto err; } (void) checksum(label, CK_MAKESUM); return (1); err: if (option_msg && diag_msg) { err_print( "Configuration via format.dat geometry failed\n"); } return (0); } int build_default_partition( struct dk_label *label, int ctrl_type) { int i; int ncyls[NDKMAP]; diskaddr_t nblks; int cyl; struct dk_vtoc *vtoc; struct part_table *pt; struct default_partitions *dpt; diskaddr_t capacity; int freecyls; int blks_per_cyl; int ncyl; #ifdef lint ctrl_type = ctrl_type; #endif /* * Install a default vtoc */ vtoc = &label->dkl_vtoc; vtoc->v_version = V_VERSION; vtoc->v_nparts = NDKMAP; vtoc->v_sanity = VTOC_SANE; for (i = 0; i < NDKMAP; i++) { vtoc->v_part[i].p_tag = default_vtoc_map[i].p_tag; vtoc->v_part[i].p_flag = default_vtoc_map[i].p_flag; } /* * Find a partition that matches this disk. Capacity * is in integral number of megabytes. */ capacity = ((diskaddr_t)(label->dkl_ncyl) * label->dkl_nhead * label->dkl_nsect) / (diskaddr_t)((1024 * 1024) / cur_blksz); dpt = default_partitions; for (i = 0; i < DEFAULT_PARTITION_TABLE_SIZE; i++, dpt++) { if (capacity >= dpt->min_capacity && capacity < dpt->max_capacity) { break; } } if (i == DEFAULT_PARTITION_TABLE_SIZE) { if (option_msg && diag_msg) { err_print("No matching default partition (%llu)\n", capacity); } return (0); } pt = dpt->part_table; /* * Go through default partition table, finding fixed * sized entries. */ freecyls = label->dkl_ncyl; blks_per_cyl = label->dkl_nhead * label->dkl_nsect; for (i = 0; i < NDKMAP; i++) { if (pt->partitions[i] == HOG || pt->partitions[i] == 0) { ncyls[i] = 0; } else { /* * Calculate number of cylinders necessary * for specified size, rounding up to * the next greatest integral number of * cylinders. Always give what they * asked or more, never less. */ nblks = pt->partitions[i] * ((1024*1024)/cur_blksz); nblks += (blks_per_cyl - 1); ncyls[i] = nblks / blks_per_cyl; freecyls -= ncyls[i]; } } if (freecyls < 0) { if (option_msg && diag_msg) { for (i = 0; i < NDKMAP; i++) { if (ncyls[i] == 0) continue; err_print("Partition %d: %u cyls\n", i, ncyls[i]); } err_print("Free cylinders exhausted (%d)\n", freecyls); } return (0); } #if defined(i386) /* * Set the default boot partition to 1 cylinder */ ncyls[8] = 1; freecyls -= 1; /* * If current disk type is not a SCSI disk, * set the default alternates partition to 2 cylinders */ if (ctrl_type != DKC_SCSI_CCS) { ncyls[9] = 2; freecyls -= 2; } #endif /* defined(i386) */ /* * Set the free hog partition to whatever space remains. * It's an error to have more than one HOG partition, * but we don't verify that here. */ for (i = 0; i < NDKMAP; i++) { if (pt->partitions[i] == HOG) { assert(ncyls[i] == 0); ncyls[i] = freecyls; break; } } /* * Error checking */ ncyl = 0; for (i = 0; i < NDKMAP; i++) { ncyl += ncyls[i]; } assert(ncyl == (label->dkl_ncyl)); /* * Finally, install the partition in the label. */ cyl = 0; #if defined(_SUNOS_VTOC_16) for (i = NDKMAP/2; i < NDKMAP; i++) { if (i == 2 || ncyls[i] == 0) continue; label->dkl_vtoc.v_part[i].p_start = cyl * blks_per_cyl; label->dkl_vtoc.v_part[i].p_size = ncyls[i] * blks_per_cyl; cyl += ncyls[i]; } for (i = 0; i < NDKMAP/2; i++) { #elif defined(_SUNOS_VTOC_8) for (i = 0; i < NDKMAP; i++) { #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_16) */ if (i == 2 || ncyls[i] == 0) { #if defined(_SUNOS_VTOC_8) if (i != 2) { label->dkl_map[i].dkl_cylno = 0; label->dkl_map[i].dkl_nblk = 0; } #endif continue; } #if defined(_SUNOS_VTOC_8) label->dkl_map[i].dkl_cylno = cyl; label->dkl_map[i].dkl_nblk = ncyls[i] * blks_per_cyl; #elif defined(_SUNOS_VTOC_16) label->dkl_vtoc.v_part[i].p_start = cyl * blks_per_cyl; label->dkl_vtoc.v_part[i].p_size = ncyls[i] * blks_per_cyl; #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_8) */ cyl += ncyls[i]; } /* * Set the whole disk partition */ #if defined(_SUNOS_VTOC_8) label->dkl_map[2].dkl_cylno = 0; label->dkl_map[2].dkl_nblk = label->dkl_ncyl * label->dkl_nhead * label->dkl_nsect; #elif defined(_SUNOS_VTOC_16) label->dkl_vtoc.v_part[2].p_start = 0; label->dkl_vtoc.v_part[2].p_size = (label->dkl_ncyl + label->dkl_acyl) * label->dkl_nhead * label->dkl_nsect; #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_8) */ if (option_msg && diag_msg) { float scaled; err_print("\n"); for (i = 0; i < NDKMAP; i++) { #if defined(_SUNOS_VTOC_8) if (label->dkl_map[i].dkl_nblk == 0) #elif defined(_SUNOS_VTOC_16) if (label->dkl_vtoc.v_part[i].p_size == 0) #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_8) */ continue; err_print("Partition %d: ", i); #if defined(_SUNOS_VTOC_8) scaled = bn2mb(label->dkl_map[i].dkl_nblk); #elif defined(_SUNOS_VTOC_16) scaled = bn2mb(label->dkl_vtoc.v_part[i].p_size); #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_8) */ if (scaled > 1024.0) { err_print("%6.2fGB ", scaled/1024.0); } else { err_print("%6.2fMB ", scaled); } #if defined(_SUNOS_VTOC_8) err_print(" %6d cylinders\n", label->dkl_map[i].dkl_nblk/blks_per_cyl); #elif defined(_SUNOS_VTOC_16) err_print(" %6d cylinders\n", label->dkl_vtoc.v_part[i].p_size/blks_per_cyl); #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_8) */ } err_print("\n"); } return (1); } /* * Find an existing scsi disk definition by this name, * if possible. */ static struct disk_type * find_scsi_disk_type( char *disk_name, struct dk_label *label) { struct ctlr_type *ctlr; struct disk_type *dp; ctlr = find_scsi_ctlr_type(); for (dp = ctlr->ctype_dlist; dp != NULL; dp = dp->dtype_next) { if (dp->dtype_asciilabel) { if ((strcmp(dp->dtype_asciilabel, disk_name) == 0) && dp->dtype_pcyl == label->dkl_pcyl && dp->dtype_ncyl == label->dkl_ncyl && dp->dtype_acyl == label->dkl_acyl && dp->dtype_nhead == label->dkl_nhead && dp->dtype_nsect == label->dkl_nsect) { return (dp); } } } return ((struct disk_type *)NULL); } /* * Find an existing scsi disk definition by this name, * if possible. */ static struct disk_type * find_scsi_disk_by_name( char *disk_name) { struct ctlr_type *ctlr; struct disk_type *dp; ctlr = find_scsi_ctlr_type(); for (dp = ctlr->ctype_dlist; dp != NULL; dp = dp->dtype_next) { if (dp->dtype_asciilabel) { if ((strcmp(dp->dtype_asciilabel, disk_name) == 0)) { return (dp); } } } return ((struct disk_type *)NULL); } /* * Return a pointer to the ctlr_type structure for SCSI * disks. This list is built into the program, so there's * no chance of not being able to find it, unless someone * totally mangles the code. */ static struct ctlr_type * find_scsi_ctlr_type() { struct mctlr_list *mlp; mlp = controlp; while (mlp != NULL) { if (mlp->ctlr_type->ctype_ctype == DKC_SCSI_CCS) { return (mlp->ctlr_type); } mlp = mlp->next; } impossible("no SCSI controller type"); return ((struct ctlr_type *)NULL); } /* * Return a pointer to the scsi ctlr_info structure. This * structure is allocated the first time format sees a * disk on this controller, so it must be present. */ static struct ctlr_info * find_scsi_ctlr_info( struct dk_cinfo *dkinfo) { struct ctlr_info *ctlr; if (dkinfo->dki_ctype != DKC_SCSI_CCS) { return (NULL); } for (ctlr = ctlr_list; ctlr != NULL; ctlr = ctlr->ctlr_next) { if (ctlr->ctlr_addr == dkinfo->dki_addr && ctlr->ctlr_space == dkinfo->dki_space && ctlr->ctlr_ctype->ctype_ctype == DKC_SCSI_CCS) { return (ctlr); } } impossible("no SCSI controller info"); return ((struct ctlr_info *)NULL); } static struct disk_type * new_scsi_disk_type( int fd, char *disk_name, struct dk_label *label) { struct disk_type *dp; struct disk_type *disk; struct ctlr_info *ctlr; struct dk_cinfo dkinfo; struct partition_info *part; struct partition_info *pt; struct disk_info *disk_info; int i; /* * Get the disk controller info for this disk */ if (ioctl(fd, DKIOCINFO, &dkinfo) == -1) { if (option_msg && diag_msg) { err_print("DKIOCINFO failed\n"); } return (NULL); } /* * Find the ctlr_info for this disk. */ ctlr = find_scsi_ctlr_info(&dkinfo); /* * Allocate a new disk type for the SCSI controller. */ disk = (struct disk_type *)zalloc(sizeof (struct disk_type)); /* * Find the disk_info instance for this disk. */ disk_info = find_scsi_disk_info(&dkinfo); /* * The controller and the disk should match. */ assert(disk_info->disk_ctlr == ctlr); /* * Link the disk into the list of disks */ dp = ctlr->ctlr_ctype->ctype_dlist; if (dp == NULL) { ctlr->ctlr_ctype->ctype_dlist = disk; } else { while (dp->dtype_next != NULL) { dp = dp->dtype_next; } dp->dtype_next = disk; } disk->dtype_next = NULL; /* * Allocate and initialize the disk name. */ disk->dtype_asciilabel = alloc_string(disk_name); /* * Initialize disk geometry info */ disk->dtype_pcyl = label->dkl_pcyl; disk->dtype_ncyl = label->dkl_ncyl; disk->dtype_acyl = label->dkl_acyl; disk->dtype_nhead = label->dkl_nhead; disk->dtype_nsect = label->dkl_nsect; disk->dtype_rpm = label->dkl_rpm; /* * Attempt to match the partition map in the label * with a know partition for this disk type. */ for (part = disk->dtype_plist; part; part = part->pinfo_next) { if (parts_match(label, part)) { break; } } /* * If no match was made, we need to create a partition * map for this disk. */ if (part == NULL) { part = (struct partition_info *) zalloc(sizeof (struct partition_info)); pt = disk->dtype_plist; if (pt == NULL) { disk->dtype_plist = part; } else { while (pt->pinfo_next != NULL) { pt = pt->pinfo_next; } pt->pinfo_next = part; } part->pinfo_next = NULL; /* * Set up the partition name */ part->pinfo_name = alloc_string("default"); /* * Fill in the partition info from the label */ for (i = 0; i < NDKMAP; i++) { #if defined(_SUNOS_VTOC_8) part->pinfo_map[i] = label->dkl_map[i]; #elif defined(_SUNOS_VTOC_16) part->pinfo_map[i].dkl_cylno = label->dkl_vtoc.v_part[i].p_start / ((blkaddr32_t)(disk->dtype_nhead * disk->dtype_nsect - apc)); part->pinfo_map[i].dkl_nblk = label->dkl_vtoc.v_part[i].p_size; #else #error No VTOC format defined. #endif /* defined(_SUNOS_VTOC_8) */ } } /* * Use the VTOC if valid, or install a default */ if (label->dkl_vtoc.v_version == V_VERSION) { (void) memcpy(disk_info->v_volume, label->dkl_vtoc.v_volume, LEN_DKL_VVOL); part->vtoc = label->dkl_vtoc; } else { (void) memset(disk_info->v_volume, 0, LEN_DKL_VVOL); set_vtoc_defaults(part); } /* * Link the disk to the partition map */ disk_info->disk_parts = part; return (disk); } /* * Delete a disk type from disk type list. */ int delete_disk_type( struct disk_type *disk_type) { struct ctlr_type *ctlr; struct disk_type *dp, *disk; if (cur_ctype->ctype_ctype == DKC_DIRECT) ctlr = find_direct_ctlr_type(); else if (cur_ctype->ctype_ctype == DKC_VBD) ctlr = find_vbd_ctlr_type(); else ctlr = find_scsi_ctlr_type(); if (ctlr == NULL || ctlr->ctype_dlist == NULL) { return (-1); } disk = ctlr->ctype_dlist; if (disk == disk_type) { ctlr->ctype_dlist = disk->dtype_next; if (cur_label == L_TYPE_EFI) free(disk->dtype_plist->etoc); free(disk->dtype_plist); free(disk); return (0); } else { for (dp = disk->dtype_next; dp != NULL; disk = disk->dtype_next, dp = dp->dtype_next) { if (dp == disk_type) { disk->dtype_next = dp->dtype_next; if (cur_label == L_TYPE_EFI) free(dp->dtype_plist->etoc); free(dp->dtype_plist); free(dp); return (0); } } return (-1); } } static struct disk_info * find_scsi_disk_info( struct dk_cinfo *dkinfo) { struct disk_info *disk; struct dk_cinfo *dp; for (disk = disk_list; disk != NULL; disk = disk->disk_next) { assert(dkinfo->dki_ctype == DKC_SCSI_CCS); dp = &disk->disk_dkinfo; if (dp->dki_ctype == dkinfo->dki_ctype && dp->dki_cnum == dkinfo->dki_cnum && dp->dki_unit == dkinfo->dki_unit && strcmp(dp->dki_dname, dkinfo->dki_dname) == 0) { return (disk); } } impossible("No SCSI disk info instance\n"); return ((struct disk_info *)NULL); } static char * get_sun_disk_name( char *disk_name, struct scsi_inquiry *inquiry) { /* * Extract the sun name of the disk */ (void) memset(disk_name, 0, DISK_NAME_MAX); (void) memcpy(disk_name, (char *)&inquiry->inq_pid[9], 7); return (disk_name); } static char * get_generic_disk_name( char *disk_name, struct scsi_inquiry *inquiry) { char *p; (void) memset(disk_name, 0, DISK_NAME_MAX); p = strcopy(disk_name, inquiry->inq_vid, sizeof (inquiry->inq_vid)); *p++ = '-'; p = strcopy(p, inquiry->inq_pid, sizeof (inquiry->inq_pid)); *p++ = '-'; p = strcopy(p, inquiry->inq_revision, sizeof (inquiry->inq_revision)); return (disk_name); } /* * Copy a string of characters from src to dst, for at * most n bytes. Strip all leading and trailing spaces, * and stop if there are any non-printable characters. * Return ptr to the next character to be filled. */ static char * strcopy( char *dst, char *src, int n) { int i; while (*src == ' ' && n > 0) { src++; n--; } for (i = 0; n-- > 0 && isascii(*src) && isprint(*src); src++) { if (*src == ' ') { i++; } else { while (i-- > 0) *dst++ = ' '; *dst++ = *src; } } *dst = 0; return (dst); } /* * adjust disk geometry. * This is used when disk reports a disk geometry page having * no of physical cylinders is < 3 which is the minimum required * by Solaris (2 for storing labels and at least one as a data * cylinder ) */ int adjust_disk_geometry(diskaddr_t capacity, uint_t *cyl, uint_t *nhead, uint_t *nsect) { uint_t lcyl = *cyl; uint_t lnhead = *nhead; uint_t lnsect = *nsect; assert(lcyl < SUN_MIN_CYL); /* * reduce nsect by 2 for each iteration and re-calculate * the number of cylinders. */ while (lnsect > MINIMUM_NO_SECTORS && lcyl < MINIMUM_NO_CYLINDERS) { /* * make sure that we do not go below MINIMUM_NO_SECTORS. */ lnsect = max(MINIMUM_NO_SECTORS, lnsect / 2); lcyl = (capacity) / (lnhead * lnsect); } /* * If the geometry still does not satisfy * MINIMUM_NO_CYLINDERS then try to reduce the * no of heads. */ while (lnhead > MINIMUM_NO_HEADS && lcyl < MINIMUM_NO_CYLINDERS) { lnhead = max(MINIMUM_NO_HEADS, lnhead / 2); lcyl = (capacity) / (lnhead * lnsect); } /* * now we should have atleast SUN_MIN_CYL cylinders. * If we still do not get SUN_MIN_CYL with MINIMUM_NO_HEADS * and MINIMUM_NO_HEADS then return error. */ if (lcyl < SUN_MIN_CYL) return (1); else { *cyl = lcyl; *nhead = lnhead; *nsect = lnsect; return (0); } } #if defined(_SUNOS_VTOC_8) /* * Reduce the size of one dimention below a specified * limit with a minimum loss of volume. Dimenstions are * assumed to be passed in form the largest value (the one * that needs to be reduced) to the smallest value. The * values will be twiddled until they are all less than or * equal to their limit. Returns the number in the new geometry. */ static diskaddr_t square_box( diskaddr_t capacity, uint_t *dim1, uint_t lim1, uint_t *dim2, uint_t lim2, uint_t *dim3, uint_t lim3) { uint_t i; /* * Although the routine should work with any ordering of * parameters, it's most efficient if they are passed in * in decreasing magnitude. */ assert(*dim1 >= *dim2); assert(*dim2 >= *dim3); /* * This is done in a very arbitrary manner. We could try to * find better values but I can't come up with a method that * would run in a reasonable amount of time. That could take * approximately 65535 * 65535 iterations of a dozen flops each * or well over 4G flops. * * First: * * Let's see how far we can go with bitshifts w/o losing * any blocks. */ for (i = 0; (((*dim1)>>i)&1) == 0 && ((*dim1)>>i) > lim1; i++) ; if (i) { *dim1 = ((*dim1)>>i); *dim3 = ((*dim3)< lim1) || ((*dim2) > lim2) || ((*dim3) > lim3)) { double d[4]; /* * Second: * * Set the highest value at its limit then calculate errors, * adjusting the 2nd highest value (we get better resolution * that way). */ d[1] = lim1; d[3] = *dim3; d[2] = (double)capacity/(d[1]*d[3]); /* * If we overflowed the middle term, set it to its limit and * chose a new low term. */ if (d[2] > lim2) { d[2] = lim2; d[3] = (double)capacity/(d[1]*d[2]); } /* * Convert to integers. */ *dim1 = (int)d[1]; *dim2 = (int)d[2]; *dim3 = (int)d[3]; } /* * Fixup any other possible problems. * If this happens, we need a new disklabel format. */ if (*dim1 > lim1) *dim1 = lim1; if (*dim2 > lim2) *dim2 = lim2; if (*dim3 > lim3) *dim3 = lim3; return (*dim1 * *dim2 * *dim3); } #endif /* defined(_SUNOS_VTOC_8) */ /* * Calculate CHS values based on the capacity data. * * NOTE: This function is same as cmlb_convert_geomerty() function in * cmlb kernel module. */ static void compute_chs_values(diskaddr_t total_capacity, diskaddr_t usable_capacity, uint_t *pcylp, uint_t *nheadp, uint_t *nsectp) { /* Unlabeled SCSI floppy device */ if (total_capacity <= 0x1000) { *nheadp = 2; *pcylp = 80; *nsectp = total_capacity / (80 * 2); return; } /* * For all devices we calculate cylinders using the heads and sectors * we assign based on capacity of the device. The algorithm is * designed to be compatible with the way other operating systems * lay out fdisk tables for X86 and to insure that the cylinders never * exceed 65535 to prevent problems with X86 ioctls that report * geometry. * For some smaller disk sizes we report geometry that matches those * used by X86 BIOS usage. For larger disks, we use SPT that are * multiples of 63, since other OSes that are not limited to 16-bits * for cylinders stop at 63 SPT we make do by using multiples of 63 SPT. * * The following table (in order) illustrates some end result * calculations: * * Maximum number of blocks nhead nsect * * 2097152 (1GB) 64 32 * 16777216 (8GB) 128 32 * 1052819775 (502.02GB) 255 63 * 2105639550 (0.98TB) 255 126 * 3158459325 (1.47TB) 255 189 * 4211279100 (1.96TB) 255 252 * 5264098875 (2.45TB) 255 315 * ... */ if (total_capacity <= 0x200000) { *nheadp = 64; *nsectp = 32; } else if (total_capacity <= 0x01000000) { *nheadp = 128; *nsectp = 32; } else { *nheadp = 255; /* make nsect be smallest multiple of 63 */ *nsectp = ((total_capacity + (UINT16_MAX * 255 * 63) - 1) / (UINT16_MAX * 255 * 63)) * 63; if (*nsectp == 0) *nsectp = (UINT16_MAX / 63) * 63; } if (usable_capacity < total_capacity) *pcylp = usable_capacity / ((*nheadp) * (*nsectp)); else *pcylp = total_capacity / ((*nheadp) * (*nsectp)); }