2008-05-15 08:48:22 +02:00
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/*
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* mdadm - Intel(R) Matrix Storage Manager Support
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*
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* Copyright (C) 2002-2007 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "mdadm.h"
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2008-05-15 08:48:47 +02:00
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#include "mdmon.h"
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2008-05-15 08:48:22 +02:00
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#include <values.h>
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#include <scsi/sg.h>
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#include <ctype.h>
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/* MPB == Metadata Parameter Block */
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#define MPB_SIGNATURE "Intel Raid ISM Cfg Sig. "
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#define MPB_SIG_LEN (strlen(MPB_SIGNATURE))
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#define MPB_VERSION_RAID0 "1.0.00"
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#define MPB_VERSION_RAID1 "1.1.00"
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#define MPB_VERSION_RAID5 "1.2.02"
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#define MAX_SIGNATURE_LENGTH 32
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#define MAX_RAID_SERIAL_LEN 16
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2008-06-17 00:36:38 +02:00
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#define MPB_SECTOR_CNT 418
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#define IMSM_RESERVED_SECTORS 4096
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2008-05-15 08:48:22 +02:00
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/* Disk configuration info. */
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#define IMSM_MAX_DEVICES 255
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struct imsm_disk {
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__u8 serial[MAX_RAID_SERIAL_LEN];/* 0xD8 - 0xE7 ascii serial number */
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__u32 total_blocks; /* 0xE8 - 0xEB total blocks */
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__u32 scsi_id; /* 0xEC - 0xEF scsi ID */
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__u32 status; /* 0xF0 - 0xF3 */
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#define SPARE_DISK 0x01 /* Spare */
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#define CONFIGURED_DISK 0x02 /* Member of some RaidDev */
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#define FAILED_DISK 0x04 /* Permanent failure */
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#define USABLE_DISK 0x08 /* Fully usable unless FAILED_DISK is set */
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#define IMSM_DISK_FILLERS 5
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__u32 filler[IMSM_DISK_FILLERS]; /* 0xF4 - 0x107 MPB_DISK_FILLERS for future expansion */
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};
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/* RAID map configuration infos. */
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struct imsm_map {
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__u32 pba_of_lba0; /* start address of partition */
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__u32 blocks_per_member;/* blocks per member */
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__u32 num_data_stripes; /* number of data stripes */
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__u16 blocks_per_strip;
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__u8 map_state; /* Normal, Uninitialized, Degraded, Failed */
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#define IMSM_T_STATE_NORMAL 0
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#define IMSM_T_STATE_UNINITIALIZED 1
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#define IMSM_T_STATE_DEGRADED 2 /* FIXME: is this correct? */
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#define IMSM_T_STATE_FAILED 3 /* FIXME: is this correct? */
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__u8 raid_level;
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#define IMSM_T_RAID0 0
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#define IMSM_T_RAID1 1
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#define IMSM_T_RAID5 5 /* since metadata version 1.2.02 ? */
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__u8 num_members; /* number of member disks */
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__u8 reserved[3];
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__u32 filler[7]; /* expansion area */
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__u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members],
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top byte special */
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} __attribute__ ((packed));
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struct imsm_vol {
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__u32 reserved[2];
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__u8 migr_state; /* Normal or Migrating */
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__u8 migr_type; /* Initializing, Rebuilding, ... */
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__u8 dirty;
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__u8 fill[1];
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__u32 filler[5];
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struct imsm_map map[1];
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/* here comes another one if migr_state */
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} __attribute__ ((packed));
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struct imsm_dev {
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__u8 volume[MAX_RAID_SERIAL_LEN];
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__u32 size_low;
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__u32 size_high;
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__u32 status; /* Persistent RaidDev status */
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__u32 reserved_blocks; /* Reserved blocks at beginning of volume */
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#define IMSM_DEV_FILLERS 12
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__u32 filler[IMSM_DEV_FILLERS];
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struct imsm_vol vol;
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} __attribute__ ((packed));
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struct imsm_super {
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__u8 sig[MAX_SIGNATURE_LENGTH]; /* 0x00 - 0x1F */
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__u32 check_sum; /* 0x20 - 0x23 MPB Checksum */
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__u32 mpb_size; /* 0x24 - 0x27 Size of MPB */
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__u32 family_num; /* 0x28 - 0x2B Checksum from first time this config was written */
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__u32 generation_num; /* 0x2C - 0x2F Incremented each time this array's MPB is written */
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__u32 reserved[2]; /* 0x30 - 0x37 */
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__u8 num_disks; /* 0x38 Number of configured disks */
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__u8 num_raid_devs; /* 0x39 Number of configured volumes */
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__u8 fill[2]; /* 0x3A - 0x3B */
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#define IMSM_FILLERS 39
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__u32 filler[IMSM_FILLERS]; /* 0x3C - 0xD7 RAID_MPB_FILLERS */
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struct imsm_disk disk[1]; /* 0xD8 diskTbl[numDisks] */
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/* here comes imsm_dev[num_raid_devs] */
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} __attribute__ ((packed));
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#ifndef MDASSEMBLE
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static char *map_state_str[] = { "normal", "uninitialized", "degraded", "failed" };
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#endif
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2008-06-14 02:42:09 +02:00
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static unsigned int sector_count(__u32 bytes)
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2008-05-15 08:48:22 +02:00
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{
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2008-06-14 02:42:09 +02:00
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return ((bytes + (512-1)) & (~(512-1))) / 512;
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}
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2008-05-15 08:48:22 +02:00
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2008-06-14 02:42:09 +02:00
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static unsigned int mpb_sectors(struct imsm_super *mpb)
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{
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return sector_count(__le32_to_cpu(mpb->mpb_size));
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2008-05-15 08:48:22 +02:00
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}
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2008-07-12 12:27:38 +02:00
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static struct superswitch super_imsm_volume;
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2008-05-15 08:48:22 +02:00
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/* internal representation of IMSM metadata */
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struct intel_super {
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union {
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struct imsm_super *mpb;
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void *buf;
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};
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2008-06-17 00:36:38 +02:00
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int updates_pending; /* count of pending updates for mdmon */
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int creating_imsm; /* flag to indicate container creation */
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int creating_dev; /* index of raid device undergoing creation */
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2008-05-15 08:48:22 +02:00
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struct dl {
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struct dl *next;
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int index;
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__u8 serial[MAX_RAID_SERIAL_LEN];
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int major, minor;
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char *devname;
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int fd;
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} *disks;
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};
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2008-06-17 00:36:38 +02:00
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struct extent {
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unsigned long long start, size;
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};
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2008-05-15 08:48:22 +02:00
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static struct supertype *match_metadata_desc_imsm(char *arg)
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{
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struct supertype *st;
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if (strcmp(arg, "imsm") != 0 &&
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strcmp(arg, "default") != 0
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)
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return NULL;
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st = malloc(sizeof(*st));
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2008-07-12 12:27:36 +02:00
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memset(st, 0, sizeof(*st));
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2008-05-15 08:48:22 +02:00
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st->ss = &super_imsm;
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st->max_devs = IMSM_MAX_DEVICES;
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st->minor_version = 0;
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st->sb = NULL;
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return st;
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}
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2008-06-14 02:42:09 +02:00
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static struct supertype *match_metadata_desc_imsm_volume(char *arg)
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2008-05-15 08:48:22 +02:00
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{
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struct supertype *st;
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2008-06-14 02:42:09 +02:00
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if (strcmp(arg, "imsm/volume") != 0 &&
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2008-05-15 08:48:22 +02:00
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strcmp(arg, "raid") != 0 &&
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strcmp(arg, "default") != 0
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)
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return NULL;
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st = malloc(sizeof(*st));
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2008-07-12 12:27:36 +02:00
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memset(st, 0, sizeof(*st));
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2008-06-14 02:42:09 +02:00
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st->ss = &super_imsm_volume;
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2008-05-15 08:48:22 +02:00
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st->max_devs = IMSM_MAX_DEVICES;
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st->minor_version = 0;
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st->sb = NULL;
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return st;
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}
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static __u8 *get_imsm_version(struct imsm_super *mpb)
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{
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return &mpb->sig[MPB_SIG_LEN];
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}
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static struct imsm_disk *get_imsm_disk(struct imsm_super *mpb, __u8 index)
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{
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if (index > mpb->num_disks - 1)
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return NULL;
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return &mpb->disk[index];
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}
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static __u32 gen_imsm_checksum(struct imsm_super *mpb)
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{
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__u32 end = mpb->mpb_size / sizeof(end);
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__u32 *p = (__u32 *) mpb;
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__u32 sum = 0;
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while (end--)
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sum += __le32_to_cpu(*p++);
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return sum - __le32_to_cpu(mpb->check_sum);
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}
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static size_t sizeof_imsm_dev(struct imsm_dev *dev)
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{
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size_t size = sizeof(*dev);
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/* each map has disk_ord_tbl[num_members - 1] additional space */
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size += sizeof(__u32) * (dev->vol.map[0].num_members - 1);
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/* migrating means an additional map */
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if (dev->vol.migr_state) {
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size += sizeof(struct imsm_map);
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size += sizeof(__u32) * (dev->vol.map[1].num_members - 1);
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}
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return size;
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}
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static struct imsm_dev *get_imsm_dev(struct imsm_super *mpb, __u8 index)
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{
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int offset;
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int i;
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void *_mpb = mpb;
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if (index > mpb->num_raid_devs - 1)
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return NULL;
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/* devices start after all disks */
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offset = ((void *) &mpb->disk[mpb->num_disks]) - _mpb;
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for (i = 0; i <= index; i++)
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if (i == index)
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return _mpb + offset;
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else
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offset += sizeof_imsm_dev(_mpb + offset);
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return NULL;
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}
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static __u32 get_imsm_disk_idx(struct imsm_map *map, int slot)
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{
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__u32 *ord_tbl = &map->disk_ord_tbl[slot];
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/* top byte is 'special' */
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return __le32_to_cpu(*ord_tbl & ~(0xff << 24));
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}
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static int get_imsm_raid_level(struct imsm_map *map)
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{
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if (map->raid_level == 1) {
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if (map->num_members == 2)
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return 1;
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else
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return 10;
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}
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return map->raid_level;
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}
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2008-06-17 00:36:38 +02:00
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static int cmp_extent(const void *av, const void *bv)
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{
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const struct extent *a = av;
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const struct extent *b = bv;
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if (a->start < b->start)
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return -1;
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if (a->start > b->start)
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return 1;
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return 0;
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}
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static struct extent *get_extents(struct intel_super *super, struct dl *dl)
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{
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/* find a list of used extents on the given physical device */
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struct imsm_super *mpb = super->mpb;
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struct imsm_disk *disk;
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struct extent *rv, *e;
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int i, j;
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int memberships = 0;
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disk = get_imsm_disk(mpb, dl->index);
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if (!disk)
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return NULL;
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for (i = 0; i < mpb->num_raid_devs; i++) {
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struct imsm_dev *dev = get_imsm_dev(mpb, i);
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struct imsm_map *map = dev->vol.map;
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for (j = 0; j < map->num_members; j++) {
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__u32 index = get_imsm_disk_idx(map, j);
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if (index == dl->index)
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memberships++;
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}
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}
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rv = malloc(sizeof(struct extent) * (memberships + 1));
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if (!rv)
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return NULL;
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e = rv;
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for (i = 0; i < mpb->num_raid_devs; i++) {
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struct imsm_dev *dev = get_imsm_dev(mpb, i);
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struct imsm_map *map = dev->vol.map;
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for (j = 0; j < map->num_members; j++) {
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__u32 index = get_imsm_disk_idx(map, j);
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if (index == dl->index) {
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e->start = __le32_to_cpu(map->pba_of_lba0);
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e->size = __le32_to_cpu(map->blocks_per_member);
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e++;
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}
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}
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}
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qsort(rv, memberships, sizeof(*rv), cmp_extent);
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e->start = __le32_to_cpu(disk->total_blocks) -
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(MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS);
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e->size = 0;
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return rv;
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}
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2008-05-15 08:48:27 +02:00
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#ifndef MDASSEMBLE
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2008-05-15 08:48:22 +02:00
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static void print_imsm_dev(struct imsm_dev *dev, int index)
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{
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__u64 sz;
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int slot;
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struct imsm_map *map = dev->vol.map;
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printf("\n");
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printf("[%s]:\n", dev->volume);
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printf(" RAID Level : %d\n", get_imsm_raid_level(map));
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printf(" Members : %d\n", map->num_members);
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|
|
for (slot = 0; slot < map->num_members; slot++)
|
|
|
|
if (index == get_imsm_disk_idx(map, slot))
|
|
|
|
break;
|
|
|
|
if (slot < map->num_members)
|
|
|
|
printf(" This Slot : %d\n", slot);
|
|
|
|
else
|
|
|
|
printf(" This Slot : ?\n");
|
|
|
|
sz = __le32_to_cpu(dev->size_high);
|
|
|
|
sz <<= 32;
|
|
|
|
sz += __le32_to_cpu(dev->size_low);
|
|
|
|
printf(" Array Size : %llu%s\n", (unsigned long long)sz,
|
|
|
|
human_size(sz * 512));
|
|
|
|
sz = __le32_to_cpu(map->blocks_per_member);
|
|
|
|
printf(" Per Dev Size : %llu%s\n", (unsigned long long)sz,
|
|
|
|
human_size(sz * 512));
|
|
|
|
printf(" Sector Offset : %u\n",
|
|
|
|
__le32_to_cpu(map->pba_of_lba0));
|
|
|
|
printf(" Num Stripes : %u\n",
|
|
|
|
__le32_to_cpu(map->num_data_stripes));
|
|
|
|
printf(" Chunk Size : %u KiB\n",
|
|
|
|
__le16_to_cpu(map->blocks_per_strip) / 2);
|
|
|
|
printf(" Reserved : %d\n", __le32_to_cpu(dev->reserved_blocks));
|
|
|
|
printf(" Migrate State : %s\n", dev->vol.migr_state ? "migrating" : "idle");
|
|
|
|
printf(" Dirty State : %s\n", dev->vol.dirty ? "dirty" : "clean");
|
|
|
|
printf(" Map State : %s\n", map_state_str[map->map_state]);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void print_imsm_disk(struct imsm_super *mpb, int index)
|
|
|
|
{
|
|
|
|
struct imsm_disk *disk = get_imsm_disk(mpb, index);
|
|
|
|
char str[MAX_RAID_SERIAL_LEN];
|
|
|
|
__u32 s;
|
|
|
|
__u64 sz;
|
|
|
|
|
|
|
|
printf("\n");
|
|
|
|
snprintf(str, MAX_RAID_SERIAL_LEN, "%s", disk->serial);
|
|
|
|
printf(" Disk%02d Serial : %s\n", index, str);
|
|
|
|
s = __le32_to_cpu(disk->status);
|
|
|
|
printf(" State :%s%s%s%s\n", s&SPARE_DISK ? " spare" : "",
|
|
|
|
s&CONFIGURED_DISK ? " active" : "",
|
|
|
|
s&FAILED_DISK ? " failed" : "",
|
|
|
|
s&USABLE_DISK ? " usable" : "");
|
|
|
|
printf(" Id : %08x\n", __le32_to_cpu(disk->scsi_id));
|
2008-06-17 00:36:38 +02:00
|
|
|
sz = __le32_to_cpu(disk->total_blocks) -
|
|
|
|
(MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS * mpb->num_raid_devs);
|
2008-05-15 08:48:22 +02:00
|
|
|
printf(" Usable Size : %llu%s\n", (unsigned long long)sz,
|
|
|
|
human_size(sz * 512));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void examine_super_imsm(struct supertype *st, char *homehost)
|
|
|
|
{
|
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
char str[MAX_SIGNATURE_LENGTH];
|
|
|
|
int i;
|
|
|
|
__u32 sum;
|
|
|
|
|
|
|
|
snprintf(str, MPB_SIG_LEN, "%s", mpb->sig);
|
|
|
|
printf(" Magic : %s\n", str);
|
|
|
|
snprintf(str, strlen(MPB_VERSION_RAID0), "%s", get_imsm_version(mpb));
|
|
|
|
printf(" Version : %s\n", get_imsm_version(mpb));
|
|
|
|
printf(" Family : %08x\n", __le32_to_cpu(mpb->family_num));
|
|
|
|
printf(" Generation : %08x\n", __le32_to_cpu(mpb->generation_num));
|
|
|
|
sum = __le32_to_cpu(mpb->check_sum);
|
|
|
|
printf(" Checksum : %08x %s\n", sum,
|
|
|
|
gen_imsm_checksum(mpb) == sum ? "correct" : "incorrect");
|
2008-06-14 02:42:09 +02:00
|
|
|
printf(" MPB Sectors : %d\n", mpb_sectors(mpb));
|
2008-05-15 08:48:22 +02:00
|
|
|
printf(" Disks : %d\n", mpb->num_disks);
|
|
|
|
printf(" RAID Devices : %d\n", mpb->num_raid_devs);
|
|
|
|
print_imsm_disk(mpb, super->disks->index);
|
|
|
|
for (i = 0; i < mpb->num_raid_devs; i++)
|
|
|
|
print_imsm_dev(get_imsm_dev(mpb, i), super->disks->index);
|
|
|
|
for (i = 0; i < mpb->num_disks; i++) {
|
|
|
|
if (i == super->disks->index)
|
|
|
|
continue;
|
|
|
|
print_imsm_disk(mpb, i);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void brief_examine_super_imsm(struct supertype *st)
|
|
|
|
{
|
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
|
|
|
|
printf("ARRAY /dev/imsm family=%08x metadata=external:imsm\n",
|
|
|
|
__le32_to_cpu(mpb->family_num));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void detail_super_imsm(struct supertype *st, char *homehost)
|
|
|
|
{
|
|
|
|
printf("%s\n", __FUNCTION__);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void brief_detail_super_imsm(struct supertype *st)
|
|
|
|
{
|
|
|
|
printf("%s\n", __FUNCTION__);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static int match_home_imsm(struct supertype *st, char *homehost)
|
|
|
|
{
|
|
|
|
printf("%s\n", __FUNCTION__);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void uuid_from_super_imsm(struct supertype *st, int uuid[4])
|
|
|
|
{
|
|
|
|
printf("%s\n", __FUNCTION__);
|
|
|
|
}
|
|
|
|
|
2008-07-12 12:27:39 +02:00
|
|
|
#if 0
|
2008-05-15 08:48:27 +02:00
|
|
|
static void
|
|
|
|
get_imsm_numerical_version(struct imsm_super *mpb, int *m, int *p)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
|
|
|
__u8 *v = get_imsm_version(mpb);
|
|
|
|
__u8 *end = mpb->sig + MAX_SIGNATURE_LENGTH;
|
|
|
|
char major[] = { 0, 0, 0 };
|
|
|
|
char minor[] = { 0 ,0, 0 };
|
|
|
|
char patch[] = { 0, 0, 0 };
|
|
|
|
char *ver_parse[] = { major, minor, patch };
|
|
|
|
int i, j;
|
|
|
|
|
|
|
|
i = j = 0;
|
|
|
|
while (*v != '\0' && v < end) {
|
|
|
|
if (*v != '.' && j < 2)
|
|
|
|
ver_parse[i][j++] = *v;
|
|
|
|
else {
|
|
|
|
i++;
|
|
|
|
j = 0;
|
|
|
|
}
|
|
|
|
v++;
|
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:27 +02:00
|
|
|
*m = strtol(minor, NULL, 0);
|
|
|
|
*p = strtol(patch, NULL, 0);
|
|
|
|
}
|
2008-07-12 12:27:39 +02:00
|
|
|
#endif
|
2008-05-15 08:48:27 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
static int imsm_level_to_layout(int level)
|
|
|
|
{
|
|
|
|
switch (level) {
|
|
|
|
case 0:
|
|
|
|
case 1:
|
|
|
|
return 0;
|
|
|
|
case 5:
|
|
|
|
case 6:
|
|
|
|
return ALGORITHM_LEFT_SYMMETRIC;
|
|
|
|
case 10:
|
|
|
|
return 0x102; //FIXME is this correct?
|
|
|
|
}
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:27 +02:00
|
|
|
static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info)
|
|
|
|
{
|
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct imsm_disk *disk;
|
2008-07-12 12:27:39 +02:00
|
|
|
int sect = mpb_sectors(mpb);
|
2008-05-15 08:48:27 +02:00
|
|
|
__u32 s;
|
|
|
|
|
2008-05-15 08:48:22 +02:00
|
|
|
info->array.raid_disks = mpb->num_disks;
|
|
|
|
info->array.level = LEVEL_CONTAINER;
|
|
|
|
info->array.layout = 0;
|
|
|
|
info->array.md_minor = -1;
|
2008-06-17 00:36:38 +02:00
|
|
|
info->array.ctime = 0; /* N/A for imsm */
|
2008-05-15 08:48:22 +02:00
|
|
|
info->array.utime = 0;
|
|
|
|
info->array.chunk_size = 0;
|
|
|
|
|
|
|
|
info->disk.major = 0;
|
|
|
|
info->disk.minor = 0;
|
|
|
|
info->disk.raid_disk = -1;
|
2008-06-17 00:36:38 +02:00
|
|
|
info->reshape_active = 0;
|
|
|
|
strcpy(info->text_version, "imsm");
|
|
|
|
info->disk.number = -1;
|
|
|
|
info->disk.state = 0;
|
|
|
|
|
2008-07-12 12:27:39 +02:00
|
|
|
info->data_offset = __le32_to_cpu(get_imsm_disk(super->mpb,
|
|
|
|
super->disks->index)
|
|
|
|
->total_blocks) - (2 + sect - 1);
|
|
|
|
info->component_size = sect;
|
|
|
|
|
2008-06-17 00:36:40 +02:00
|
|
|
if (super->disks) {
|
|
|
|
info->disk.number = super->disks->index;
|
|
|
|
info->disk.raid_disk = super->disks->index;
|
|
|
|
disk = get_imsm_disk(mpb, super->disks->index);
|
|
|
|
s = __le32_to_cpu(disk->status);
|
|
|
|
info->disk.state = s & CONFIGURED_DISK ? (1 << MD_DISK_ACTIVE) : 0;
|
|
|
|
info->disk.state |= s & FAILED_DISK ? (1 << MD_DISK_FAULTY) : 0;
|
|
|
|
info->disk.state |= s & USABLE_DISK ? (1 << MD_DISK_SYNC) : 0;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-06-14 02:42:09 +02:00
|
|
|
static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct imsm_dev *dev = get_imsm_dev(mpb, info->container_member);
|
|
|
|
struct imsm_map *map = &dev->vol.map[0];
|
|
|
|
|
|
|
|
info->array.raid_disks = map->num_members;
|
|
|
|
info->array.level = get_imsm_raid_level(map);
|
|
|
|
info->array.layout = imsm_level_to_layout(info->array.level);
|
|
|
|
info->array.md_minor = -1;
|
|
|
|
info->array.ctime = 0;
|
|
|
|
info->array.utime = 0;
|
|
|
|
info->array.chunk_size = __le16_to_cpu(map->blocks_per_strip * 512);
|
|
|
|
|
|
|
|
info->data_offset = __le32_to_cpu(map->pba_of_lba0);
|
|
|
|
info->component_size = __le32_to_cpu(map->blocks_per_member);
|
|
|
|
|
|
|
|
info->disk.major = 0;
|
|
|
|
info->disk.minor = 0;
|
2008-05-27 01:18:55 +02:00
|
|
|
|
|
|
|
sprintf(info->text_version, "/%s/%d",
|
|
|
|
devnum2devname(st->container_dev),
|
2008-06-17 00:36:38 +02:00
|
|
|
info->container_member);
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int update_super_imsm(struct supertype *st, struct mdinfo *info,
|
|
|
|
char *update, char *devname, int verbose,
|
|
|
|
int uuid_set, char *homehost)
|
|
|
|
{
|
2008-05-15 08:48:24 +02:00
|
|
|
/* FIXME */
|
|
|
|
|
|
|
|
/* For 'assemble' and 'force' we need to return non-zero if any
|
|
|
|
* change was made. For others, the return value is ignored.
|
|
|
|
* Update options are:
|
|
|
|
* force-one : This device looks a bit old but needs to be included,
|
|
|
|
* update age info appropriately.
|
|
|
|
* assemble: clear any 'faulty' flag to allow this device to
|
|
|
|
* be assembled.
|
|
|
|
* force-array: Array is degraded but being forced, mark it clean
|
|
|
|
* if that will be needed to assemble it.
|
|
|
|
*
|
|
|
|
* newdev: not used ????
|
|
|
|
* grow: Array has gained a new device - this is currently for
|
|
|
|
* linear only
|
|
|
|
* resync: mark as dirty so a resync will happen.
|
|
|
|
* name: update the name - preserving the homehost
|
|
|
|
*
|
|
|
|
* Following are not relevant for this imsm:
|
|
|
|
* sparc2.2 : update from old dodgey metadata
|
|
|
|
* super-minor: change the preferred_minor number
|
|
|
|
* summaries: update redundant counters.
|
|
|
|
* uuid: Change the uuid of the array to match watch is given
|
|
|
|
* homehost: update the recorded homehost
|
|
|
|
* _reshape_progress: record new reshape_progress position.
|
|
|
|
*/
|
|
|
|
int rv = 0;
|
|
|
|
//struct intel_super *super = st->sb;
|
|
|
|
//struct imsm_super *mpb = super->mpb;
|
|
|
|
|
|
|
|
if (strcmp(update, "grow") == 0) {
|
|
|
|
}
|
|
|
|
if (strcmp(update, "resync") == 0) {
|
|
|
|
/* dev->vol.dirty = 1; */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* IMSM has no concept of UUID or homehost */
|
|
|
|
|
|
|
|
return rv;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
static size_t disks_to_mpb_size(int disks)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
size_t size;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
size = sizeof(struct imsm_super);
|
|
|
|
size += (disks - 1) * sizeof(struct imsm_disk);
|
|
|
|
size += 2 * sizeof(struct imsm_dev);
|
|
|
|
/* up to 2 maps per raid device (-2 for imsm_maps in imsm_dev */
|
|
|
|
size += (4 - 2) * sizeof(struct imsm_map);
|
|
|
|
/* 4 possible disk_ord_tbl's */
|
|
|
|
size += 4 * (disks - 1) * sizeof(__u32);
|
|
|
|
|
|
|
|
return size;
|
|
|
|
}
|
|
|
|
|
|
|
|
static __u64 avail_size_imsm(struct supertype *st, __u64 devsize)
|
|
|
|
{
|
|
|
|
if (devsize < (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return devsize - (MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS);
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int compare_super_imsm(struct supertype *st, struct supertype *tst)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* return:
|
|
|
|
* 0 same, or first was empty, and second was copied
|
|
|
|
* 1 second had wrong number
|
|
|
|
* 2 wrong uuid
|
|
|
|
* 3 wrong other info
|
|
|
|
*/
|
|
|
|
struct intel_super *first = st->sb;
|
|
|
|
struct intel_super *sec = tst->sb;
|
|
|
|
|
|
|
|
if (!first) {
|
|
|
|
st->sb = tst->sb;
|
|
|
|
tst->sb = NULL;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (memcmp(first->mpb->sig, sec->mpb->sig, MAX_SIGNATURE_LENGTH) != 0)
|
|
|
|
return 3;
|
|
|
|
if (first->mpb->family_num != sec->mpb->family_num)
|
|
|
|
return 3;
|
|
|
|
if (first->mpb->mpb_size != sec->mpb->mpb_size)
|
|
|
|
return 3;
|
|
|
|
if (first->mpb->check_sum != sec->mpb->check_sum)
|
|
|
|
return 3;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
extern int scsi_get_serial(int fd, void *buf, size_t buf_len);
|
|
|
|
|
|
|
|
static int imsm_read_serial(int fd, char *devname,
|
|
|
|
__u8 serial[MAX_RAID_SERIAL_LEN])
|
|
|
|
{
|
|
|
|
unsigned char scsi_serial[255];
|
|
|
|
int sg_fd;
|
|
|
|
int rv;
|
|
|
|
int rsp_len;
|
|
|
|
int i, cnt;
|
|
|
|
|
|
|
|
memset(scsi_serial, 0, sizeof(scsi_serial));
|
|
|
|
|
2008-06-14 02:27:30 +02:00
|
|
|
sg_fd = sysfs_disk_to_sg(fd);
|
2008-05-15 08:48:22 +02:00
|
|
|
if (sg_fd < 0) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
2008-06-14 02:27:30 +02:00
|
|
|
Name ": Failed to open sg interface for %s: %s\n",
|
|
|
|
devname, strerror(errno));
|
2008-05-15 08:48:22 +02:00
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
rv = scsi_get_serial(sg_fd, scsi_serial, sizeof(scsi_serial));
|
|
|
|
close(sg_fd);
|
|
|
|
|
|
|
|
if (rv != 0) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Failed to retrieve serial for %s\n",
|
|
|
|
devname);
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
rsp_len = scsi_serial[3];
|
|
|
|
for (i = 0, cnt = 0; i < rsp_len; i++) {
|
|
|
|
if (!isspace(scsi_serial[4 + i]))
|
|
|
|
serial[cnt++] = scsi_serial[4 + i];
|
|
|
|
if (cnt == MAX_RAID_SERIAL_LEN)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
serial[MAX_RAID_SERIAL_LEN - 1] = '\0';
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
load_imsm_disk(int fd, struct intel_super *super, char *devname, int keep_fd)
|
|
|
|
{
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct dl *dl;
|
|
|
|
struct stat stb;
|
|
|
|
struct imsm_disk *disk;
|
|
|
|
int rv;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
dl = malloc(sizeof(*dl));
|
|
|
|
if (!dl) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": failed to allocate disk buffer for %s\n",
|
|
|
|
devname);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
memset(dl, 0, sizeof(*dl));
|
|
|
|
|
|
|
|
fstat(fd, &stb);
|
|
|
|
dl->major = major(stb.st_rdev);
|
|
|
|
dl->minor = minor(stb.st_rdev);
|
|
|
|
dl->next = super->disks;
|
|
|
|
dl->fd = keep_fd ? fd : -1;
|
|
|
|
dl->devname = devname ? strdup(devname) : NULL;
|
|
|
|
dl->index = -1;
|
|
|
|
super->disks = dl;
|
|
|
|
rv = imsm_read_serial(fd, devname, dl->serial);
|
|
|
|
|
|
|
|
if (rv != 0)
|
|
|
|
return 2;
|
|
|
|
|
|
|
|
/* look up this disk's index */
|
|
|
|
for (i = 0; i < mpb->num_disks; i++) {
|
|
|
|
disk = get_imsm_disk(mpb, i);
|
|
|
|
|
|
|
|
if (memcmp(disk->serial, dl->serial, MAX_RAID_SERIAL_LEN) == 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (i > mpb->num_disks)
|
|
|
|
return 2;
|
|
|
|
|
|
|
|
dl->index = i;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* load_imsm_mpb - read matrix metadata
|
|
|
|
* allocates super->mpb to be freed by free_super
|
|
|
|
*/
|
|
|
|
static int load_imsm_mpb(int fd, struct intel_super *super, char *devname)
|
|
|
|
{
|
|
|
|
unsigned long long dsize;
|
|
|
|
size_t len, mpb_size;
|
|
|
|
unsigned long long sectors;
|
|
|
|
struct stat;
|
|
|
|
struct imsm_super anchor;
|
|
|
|
__u32 check_sum;
|
|
|
|
|
|
|
|
memset(super, 0, sizeof(*super));
|
|
|
|
get_dev_size(fd, NULL, &dsize);
|
|
|
|
|
|
|
|
if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Cannot seek to anchor block on %s: %s\n",
|
|
|
|
devname, strerror(errno));
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
len = sizeof(anchor);
|
|
|
|
if (read(fd, &anchor, len) != len) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Cannot read anchor block on %s: %s\n",
|
|
|
|
devname, strerror(errno));
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (strncmp((char *) anchor.sig, MPB_SIGNATURE, MPB_SIG_LEN) != 0) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": no IMSM anchor on %s\n", devname);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
mpb_size = __le32_to_cpu(anchor.mpb_size);
|
|
|
|
super->mpb = malloc(mpb_size < 512 ? 512 : mpb_size);
|
|
|
|
if (!super->mpb) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": unable to allocate %zu byte mpb buffer\n",
|
|
|
|
mpb_size);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
memcpy(super->buf, &anchor, sizeof(anchor));
|
|
|
|
|
|
|
|
/* read the rest of the first block */
|
|
|
|
len = 512 - sizeof(anchor);
|
|
|
|
if (read(fd, super->buf + sizeof(anchor), len) != len) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Cannot read anchor remainder on %s: %s\n",
|
|
|
|
devname, strerror(errno));
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
sectors = mpb_sectors(&anchor) - 1;
|
|
|
|
if (!sectors)
|
|
|
|
return load_imsm_disk(fd, super, devname, 0);
|
|
|
|
|
|
|
|
/* read the extended mpb */
|
|
|
|
if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Cannot seek to extended mpb on %s: %s\n",
|
|
|
|
devname, strerror(errno));
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
len = mpb_size - 512;
|
|
|
|
if (read(fd, super->buf + 512, len) != len) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Cannot read extended mpb on %s: %s\n",
|
|
|
|
devname, strerror(errno));
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
check_sum = gen_imsm_checksum(super->mpb);
|
|
|
|
if (check_sum != __le32_to_cpu(super->mpb->check_sum)) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": IMSM checksum %x != %x on %s\n",
|
|
|
|
check_sum, __le32_to_cpu(super->mpb->check_sum),
|
|
|
|
devname);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
return load_imsm_disk(fd, super, devname, 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct superswitch super_imsm_container;
|
|
|
|
|
|
|
|
static void free_imsm_disks(struct intel_super *super)
|
|
|
|
{
|
|
|
|
while (super->disks) {
|
|
|
|
struct dl *d = super->disks;
|
|
|
|
|
|
|
|
super->disks = d->next;
|
|
|
|
if (d->fd >= 0)
|
|
|
|
close(d->fd);
|
|
|
|
if (d->devname)
|
|
|
|
free(d->devname);
|
|
|
|
free(d);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void free_imsm(struct intel_super *super)
|
|
|
|
{
|
|
|
|
if (super->mpb)
|
|
|
|
free(super->mpb);
|
|
|
|
free_imsm_disks(super);
|
|
|
|
free(super);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static void free_super_imsm(struct supertype *st)
|
|
|
|
{
|
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
|
|
|
|
if (!super)
|
|
|
|
return;
|
|
|
|
|
|
|
|
free_imsm(super);
|
|
|
|
st->sb = NULL;
|
|
|
|
}
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
static struct intel_super *alloc_super(int creating_imsm)
|
|
|
|
{
|
|
|
|
struct intel_super *super = malloc(sizeof(*super));
|
|
|
|
|
|
|
|
if (super) {
|
|
|
|
memset(super, 0, sizeof(*super));
|
|
|
|
super->creating_imsm = creating_imsm;
|
|
|
|
super->creating_dev = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return super;
|
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:22 +02:00
|
|
|
#ifndef MDASSEMBLE
|
|
|
|
static int load_super_imsm_all(struct supertype *st, int fd, void **sbp,
|
|
|
|
char *devname, int keep_fd)
|
|
|
|
{
|
|
|
|
struct mdinfo *sra;
|
|
|
|
struct intel_super *super;
|
|
|
|
struct mdinfo *sd, *best = NULL;
|
|
|
|
__u32 bestgen = 0;
|
|
|
|
__u32 gen;
|
|
|
|
char nm[20];
|
|
|
|
int dfd;
|
|
|
|
int rv;
|
|
|
|
|
|
|
|
/* check if this disk is a member of an active array */
|
|
|
|
sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE);
|
|
|
|
if (!sra)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
if (sra->array.major_version != -1 ||
|
|
|
|
sra->array.minor_version != -2 ||
|
|
|
|
strcmp(sra->text_version, "imsm") != 0)
|
|
|
|
return 1;
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
super = alloc_super(0);
|
2008-05-15 08:48:22 +02:00
|
|
|
if (!super)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
/* find the most up to date disk in this array */
|
|
|
|
for (sd = sra->devs; sd; sd = sd->next) {
|
|
|
|
sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor);
|
|
|
|
dfd = dev_open(nm, keep_fd ? O_RDWR : O_RDONLY);
|
|
|
|
if (!dfd) {
|
|
|
|
free_imsm(super);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
rv = load_imsm_mpb(dfd, super, NULL);
|
|
|
|
if (!keep_fd)
|
|
|
|
close(dfd);
|
|
|
|
if (rv == 0) {
|
|
|
|
gen = __le32_to_cpu(super->mpb->generation_num);
|
|
|
|
if (!best || gen > bestgen) {
|
|
|
|
bestgen = gen;
|
|
|
|
best = sd;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
free_imsm(super);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!best) {
|
|
|
|
free_imsm(super);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* load the most up to date anchor */
|
|
|
|
sprintf(nm, "%d:%d", best->disk.major, best->disk.minor);
|
|
|
|
dfd = dev_open(nm, O_RDONLY);
|
|
|
|
if (!dfd) {
|
|
|
|
free_imsm(super);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
rv = load_imsm_mpb(dfd, super, NULL);
|
|
|
|
close(dfd);
|
|
|
|
if (rv != 0) {
|
|
|
|
free_imsm(super);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* reset the disk list */
|
|
|
|
free_imsm_disks(super);
|
|
|
|
|
|
|
|
/* populate disk list */
|
|
|
|
for (sd = sra->devs ; sd ; sd = sd->next) {
|
|
|
|
sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor);
|
|
|
|
dfd = dev_open(nm, keep_fd? O_RDWR : O_RDONLY);
|
|
|
|
if (!dfd) {
|
|
|
|
free_imsm(super);
|
|
|
|
return 2;
|
|
|
|
}
|
|
|
|
load_imsm_disk(dfd, super, NULL, keep_fd);
|
|
|
|
if (!keep_fd)
|
|
|
|
close(dfd);
|
|
|
|
}
|
|
|
|
|
2008-07-12 12:27:38 +02:00
|
|
|
if (st->subarray[0]) {
|
|
|
|
/* FIXME */
|
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:22 +02:00
|
|
|
*sbp = super;
|
|
|
|
if (st->ss == NULL) {
|
|
|
|
st->ss = &super_imsm_container;
|
|
|
|
st->minor_version = 0;
|
|
|
|
st->max_devs = IMSM_MAX_DEVICES;
|
2008-06-14 02:42:09 +02:00
|
|
|
st->container_dev = fd2devnum(fd);
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static int load_super_imsm(struct supertype *st, int fd, char *devname)
|
|
|
|
{
|
|
|
|
struct intel_super *super;
|
|
|
|
int rv;
|
|
|
|
|
|
|
|
#ifndef MDASSEMBLE
|
2008-05-15 08:48:46 +02:00
|
|
|
if (load_super_imsm_all(st, fd, &st->sb, devname, 1) == 0)
|
2008-05-15 08:48:22 +02:00
|
|
|
return 0;
|
|
|
|
#endif
|
2008-07-12 12:27:38 +02:00
|
|
|
if (st->subarray[0])
|
|
|
|
return 1; /* FIXME */
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
super = alloc_super(0);
|
2008-05-15 08:48:22 +02:00
|
|
|
if (!super) {
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": malloc of %zu failed.\n",
|
|
|
|
sizeof(*super));
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
rv = load_imsm_mpb(fd, super, devname);
|
|
|
|
|
|
|
|
if (rv) {
|
|
|
|
if (devname)
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Failed to load all information "
|
|
|
|
"sections on %s\n", devname);
|
|
|
|
free_imsm(super);
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
|
|
|
|
st->sb = super;
|
|
|
|
if (st->ss == NULL) {
|
|
|
|
st->ss = &super_imsm;
|
|
|
|
st->minor_version = 0;
|
|
|
|
st->max_devs = IMSM_MAX_DEVICES;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int init_zero_imsm(struct supertype *st, mdu_array_info_t *info,
|
|
|
|
unsigned long long size, char *name,
|
|
|
|
char *homehost, int *uuid)
|
|
|
|
{
|
2008-06-17 00:36:40 +02:00
|
|
|
st->sb = NULL;
|
2008-05-15 08:48:22 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int init_super_imsm(struct supertype *st, mdu_array_info_t *info,
|
|
|
|
unsigned long long size, char *name,
|
|
|
|
char *homehost, int *uuid)
|
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
/* This is primarily called by Create when creating a new array.
|
|
|
|
* We will then get add_to_super called for each component, and then
|
|
|
|
* write_init_super called to write it out to each device.
|
|
|
|
* For IMSM, Create can create on fresh devices or on a pre-existing
|
|
|
|
* array.
|
|
|
|
* To create on a pre-existing array a different method will be called.
|
|
|
|
* This one is just for fresh drives.
|
|
|
|
*/
|
|
|
|
struct intel_super *super;
|
|
|
|
struct imsm_super *mpb;
|
|
|
|
size_t mpb_size;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
super = alloc_super(1);
|
|
|
|
if (!super)
|
|
|
|
return 0;
|
|
|
|
mpb_size = disks_to_mpb_size(info->nr_disks);
|
|
|
|
mpb = malloc(mpb_size);
|
|
|
|
if (!mpb) {
|
|
|
|
free(super);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
memset(mpb, 0, mpb_size);
|
|
|
|
|
|
|
|
memcpy(mpb->sig, MPB_SIGNATURE, strlen(MPB_SIGNATURE));
|
|
|
|
memcpy(mpb->sig + strlen(MPB_SIGNATURE), MPB_VERSION_RAID5,
|
|
|
|
strlen(MPB_VERSION_RAID5));
|
|
|
|
mpb->mpb_size = mpb_size;
|
|
|
|
|
|
|
|
super->mpb = mpb;
|
|
|
|
st->sb = super;
|
|
|
|
return 1;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
2008-06-14 02:42:09 +02:00
|
|
|
static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info,
|
|
|
|
unsigned long long size, char *name,
|
|
|
|
char *homehost, int *uuid)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
/* We are creating a volume inside a pre-existing container.
|
|
|
|
* so st->sb is already set.
|
|
|
|
*/
|
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct imsm_dev *dev;
|
|
|
|
struct imsm_vol *vol;
|
|
|
|
struct imsm_map *map;
|
|
|
|
int idx = mpb->num_raid_devs;
|
|
|
|
int i;
|
|
|
|
unsigned long long array_blocks;
|
|
|
|
unsigned long long sz;
|
|
|
|
__u32 offset = 0;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
if (mpb->num_raid_devs >= 2) {
|
|
|
|
fprintf(stderr, Name": This imsm-container already has the "
|
|
|
|
"maximum of 2 volumes\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
super->creating_dev = idx;
|
|
|
|
mpb->num_raid_devs++;
|
|
|
|
dev = get_imsm_dev(mpb, idx);
|
|
|
|
strncpy((char *) dev->volume, name, MAX_RAID_SERIAL_LEN);
|
|
|
|
array_blocks = calc_array_size(info->level, info->raid_disks,
|
|
|
|
info->layout, info->chunk_size,
|
|
|
|
info->size*2);
|
|
|
|
dev->size_low = __cpu_to_le32((__u32) array_blocks);
|
|
|
|
dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32));
|
|
|
|
dev->status = __cpu_to_le32(0);
|
|
|
|
dev->reserved_blocks = __cpu_to_le32(0);
|
|
|
|
vol = &dev->vol;
|
|
|
|
vol->migr_state = 0;
|
|
|
|
vol->migr_type = 0;
|
|
|
|
vol->dirty = 0;
|
|
|
|
for (i = 0; i < idx; i++) {
|
|
|
|
struct imsm_dev *prev = get_imsm_dev(mpb, i);
|
|
|
|
struct imsm_map *pmap = &prev->vol.map[0];
|
|
|
|
|
|
|
|
offset += __le32_to_cpu(pmap->blocks_per_member);
|
|
|
|
offset += IMSM_RESERVED_SECTORS;
|
|
|
|
}
|
|
|
|
map = &vol->map[0];
|
|
|
|
map->pba_of_lba0 = __cpu_to_le32(offset);
|
|
|
|
sz = info->size * 2;
|
|
|
|
map->blocks_per_member = __cpu_to_le32(sz);
|
|
|
|
map->blocks_per_strip = __cpu_to_le16(info->chunk_size >> 9);
|
|
|
|
map->num_data_stripes = __cpu_to_le32(sz / (info->chunk_size >> 9));
|
|
|
|
map->map_state = info->level ? IMSM_T_STATE_UNINITIALIZED :
|
|
|
|
IMSM_T_STATE_NORMAL;
|
|
|
|
if (info->level == 10)
|
|
|
|
map->raid_level = 1;
|
|
|
|
else
|
|
|
|
map->raid_level = info->level;
|
|
|
|
map->num_members = info->raid_disks;
|
|
|
|
for (i = 0; i < map->num_members; i++) {
|
|
|
|
/* initialized in add_to_super */
|
|
|
|
map->disk_ord_tbl[i] = __cpu_to_le32(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
static void add_to_super_imsm(struct supertype *st, mdu_disk_info_t *dk,
|
2008-05-15 08:48:22 +02:00
|
|
|
int fd, char *devname)
|
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct imsm_disk *disk;
|
|
|
|
struct dl *dd;
|
|
|
|
unsigned long long size;
|
|
|
|
__u32 status, id;
|
|
|
|
int rv;
|
|
|
|
struct stat stb;
|
|
|
|
|
|
|
|
fstat(fd, &stb);
|
|
|
|
dd = malloc(sizeof(*dd));
|
|
|
|
if (!dd) {
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": malloc failed %s:%d.\n", __func__, __LINE__);
|
|
|
|
abort();
|
|
|
|
}
|
|
|
|
memset(dd, 0, sizeof(*dd));
|
|
|
|
dd->major = major(stb.st_rdev);
|
|
|
|
dd->minor = minor(stb.st_rdev);
|
|
|
|
dd->index = dk->number;
|
|
|
|
dd->devname = devname ? strdup(devname) : NULL;
|
|
|
|
dd->next = super->disks;
|
|
|
|
dd->fd = fd;
|
|
|
|
rv = imsm_read_serial(fd, devname, dd->serial);
|
|
|
|
if (rv) {
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": failed to retrieve scsi serial "
|
|
|
|
"using \'%s\' instead\n", devname);
|
|
|
|
strcpy((char *) dd->serial, devname);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mpb->num_disks <= dk->number)
|
|
|
|
mpb->num_disks = dk->number + 1;
|
|
|
|
|
|
|
|
disk = get_imsm_disk(mpb, dk->number);
|
|
|
|
get_dev_size(fd, NULL, &size);
|
|
|
|
size /= 512;
|
|
|
|
status = USABLE_DISK | SPARE_DISK;
|
|
|
|
strcpy((char *) disk->serial, (char *) dd->serial);
|
|
|
|
disk->total_blocks = __cpu_to_le32(size);
|
|
|
|
disk->status = __cpu_to_le32(status);
|
|
|
|
if (sysfs_disk_to_scsi_id(fd, &id) == 0)
|
|
|
|
disk->scsi_id = __cpu_to_le32(id);
|
|
|
|
else
|
|
|
|
disk->scsi_id = __cpu_to_le32(0);
|
|
|
|
|
|
|
|
/* update the family number if we are creating a container */
|
|
|
|
if (super->creating_imsm)
|
|
|
|
mpb->family_num = __cpu_to_le32(gen_imsm_checksum(mpb));
|
|
|
|
|
|
|
|
super->disks = dd;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
static void add_to_super_imsm_volume(struct supertype *st, mdu_disk_info_t *dk,
|
2008-06-14 02:42:09 +02:00
|
|
|
int fd, char *devname)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct dl *dl;
|
|
|
|
struct imsm_dev *dev;
|
|
|
|
struct imsm_map *map;
|
|
|
|
struct imsm_disk *disk;
|
|
|
|
__u32 status;
|
|
|
|
|
|
|
|
if (super->creating_dev == -1) {
|
|
|
|
fprintf(stderr, Name ": no active raid device\n");
|
|
|
|
abort();
|
|
|
|
}
|
|
|
|
|
|
|
|
dev = get_imsm_dev(mpb, super->creating_dev);
|
|
|
|
map = &dev->vol.map[0];
|
|
|
|
|
|
|
|
for (dl = super->disks; dl ; dl = dl->next)
|
|
|
|
if (dl->major == dk->major &&
|
|
|
|
dl->minor == dk->minor)
|
|
|
|
break;
|
|
|
|
if (!dl || ! (dk->state & (1<<MD_DISK_SYNC)))
|
|
|
|
return;
|
|
|
|
|
|
|
|
map->disk_ord_tbl[dk->number] = __cpu_to_le32(dl->index);
|
|
|
|
|
|
|
|
disk = get_imsm_disk(mpb, dl->index);
|
|
|
|
status = CONFIGURED_DISK | USABLE_DISK;
|
|
|
|
disk->status = __cpu_to_le32(status);
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
static int store_imsm_mpb(int fd, struct intel_super *super);
|
|
|
|
|
|
|
|
static int write_super_imsm(struct intel_super *super, int doclose)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct dl *d;
|
|
|
|
__u32 generation;
|
|
|
|
__u32 sum;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
/* 'generation' is incremented everytime the metadata is written */
|
|
|
|
generation = __le32_to_cpu(mpb->generation_num);
|
|
|
|
generation++;
|
|
|
|
mpb->generation_num = __cpu_to_le32(generation);
|
|
|
|
|
|
|
|
/* recalculate checksum */
|
|
|
|
sum = gen_imsm_checksum(mpb);
|
|
|
|
mpb->check_sum = __cpu_to_le32(sum);
|
|
|
|
|
|
|
|
for (d = super->disks; d ; d = d->next) {
|
|
|
|
if (store_imsm_mpb(d->fd, super)) {
|
|
|
|
fprintf(stderr, "%s: failed for device %d:%d %s\n",
|
|
|
|
__func__, d->major, d->minor, strerror(errno));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (doclose) {
|
|
|
|
close(d->fd);
|
|
|
|
d->fd = -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int write_init_super_imsm(struct supertype *st)
|
|
|
|
{
|
|
|
|
return write_super_imsm(st->sb, 1);
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int store_zero_imsm(struct supertype *st, int fd)
|
|
|
|
{
|
2008-06-17 00:36:40 +02:00
|
|
|
unsigned long long dsize;
|
|
|
|
char buf[512];
|
|
|
|
|
|
|
|
get_dev_size(fd, NULL, &dsize);
|
|
|
|
|
|
|
|
/* first block is stored on second to last sector of the disk */
|
|
|
|
if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (write(fd, buf, sizeof(buf)) != sizeof(buf))
|
|
|
|
return 1;
|
2008-05-15 08:48:22 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int validate_geometry_imsm(struct supertype *st, int level, int layout,
|
|
|
|
int raiddisks, int chunk, unsigned long long size,
|
2008-06-17 00:36:38 +02:00
|
|
|
char *dev, unsigned long long *freesize)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
int fd, cfd;
|
|
|
|
struct mdinfo *sra;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
/* if given unused devices create a container
|
|
|
|
* if given given devices in a container create a member volume
|
|
|
|
*/
|
|
|
|
if (level == LEVEL_CONTAINER) {
|
|
|
|
st->ss = &super_imsm_container;
|
|
|
|
if (dev) {
|
|
|
|
/* validate the container, dev == NULL */
|
|
|
|
int rv = st->ss->validate_geometry(st, level, layout,
|
|
|
|
raiddisks, chunk,
|
|
|
|
size,
|
|
|
|
NULL, freesize);
|
|
|
|
if (rv)
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
return st->ss->validate_geometry(st, level, layout, raiddisks,
|
|
|
|
chunk, size, dev, freesize);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (st->sb) {
|
|
|
|
/* creating in a given container */
|
|
|
|
st->ss = &super_imsm_volume;
|
|
|
|
if (dev) {
|
|
|
|
int rv = st->ss->validate_geometry(st, level, layout,
|
|
|
|
raiddisks, chunk,
|
|
|
|
size,
|
|
|
|
NULL, freesize);
|
|
|
|
if (rv)
|
|
|
|
return rv;
|
|
|
|
}
|
|
|
|
return st->ss->validate_geometry(st, level, layout, raiddisks,
|
|
|
|
chunk, size, dev, freesize);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* limit creation to the following levels */
|
|
|
|
if (!dev)
|
|
|
|
switch (level) {
|
|
|
|
case 0:
|
|
|
|
case 1:
|
|
|
|
case 10:
|
|
|
|
case 5:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* This device needs to be a device in an 'imsm' container */
|
|
|
|
fd = open(dev, O_RDONLY|O_EXCL, 0);
|
|
|
|
if (fd >= 0) {
|
|
|
|
fprintf(stderr,
|
|
|
|
Name ": Cannot create this array on device %s\n",
|
|
|
|
dev);
|
|
|
|
close(fd);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) {
|
|
|
|
fprintf(stderr, Name ": Cannot open %s: %s\n",
|
|
|
|
dev, strerror(errno));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
/* Well, it is in use by someone, maybe an 'imsm' container. */
|
|
|
|
cfd = open_container(fd);
|
|
|
|
if (cfd < 0) {
|
|
|
|
close(fd);
|
|
|
|
fprintf(stderr, Name ": Cannot use %s: It is busy\n",
|
|
|
|
dev);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
sra = sysfs_read(cfd, 0, GET_VERSION);
|
|
|
|
close(fd);
|
|
|
|
if (sra && sra->array.major_version == -1 &&
|
|
|
|
strcmp(sra->text_version, "imsm") == 0) {
|
|
|
|
/* This is a member of a imsm container. Load the container
|
|
|
|
* and try to create a volume
|
|
|
|
*/
|
|
|
|
struct intel_super *super;
|
|
|
|
st->ss = &super_imsm_volume;
|
|
|
|
if (load_super_imsm_all(st, cfd, (void **) &super, NULL, 1) == 0) {
|
|
|
|
st->sb = super;
|
|
|
|
st->container_dev = fd2devnum(cfd);
|
|
|
|
close(cfd);
|
|
|
|
return st->ss->validate_geometry(st, level, layout,
|
|
|
|
raiddisks, chunk, size,
|
|
|
|
dev, freesize);
|
|
|
|
}
|
|
|
|
close(cfd);
|
|
|
|
} else /* may belong to another container */
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return 1;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int validate_geometry_imsm_container(struct supertype *st, int level,
|
|
|
|
int layout, int raiddisks, int chunk,
|
2008-06-17 00:36:38 +02:00
|
|
|
unsigned long long size, char *dev,
|
2008-05-15 08:48:22 +02:00
|
|
|
unsigned long long *freesize)
|
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
int fd;
|
|
|
|
unsigned long long ldsize;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
if (level != LEVEL_CONTAINER)
|
|
|
|
return 0;
|
|
|
|
if (!dev)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
fd = open(dev, O_RDONLY|O_EXCL, 0);
|
|
|
|
if (fd < 0) {
|
|
|
|
fprintf(stderr, Name ": Cannot open %s: %s\n",
|
|
|
|
dev, strerror(errno));
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
if (!get_dev_size(fd, dev, &ldsize)) {
|
|
|
|
close(fd);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
close(fd);
|
|
|
|
|
|
|
|
*freesize = avail_size_imsm(st, ldsize >> 9);
|
|
|
|
|
|
|
|
return 1;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
/* validate_geometry_imsm_volume - lifted from validate_geometry_ddf_bvd
|
|
|
|
* FIX ME add ahci details
|
|
|
|
*/
|
2008-06-14 02:42:09 +02:00
|
|
|
static int validate_geometry_imsm_volume(struct supertype *st, int level,
|
|
|
|
int layout, int raiddisks, int chunk,
|
2008-06-17 00:36:38 +02:00
|
|
|
unsigned long long size, char *dev,
|
2008-06-14 02:42:09 +02:00
|
|
|
unsigned long long *freesize)
|
2008-05-15 08:48:22 +02:00
|
|
|
{
|
2008-06-17 00:36:38 +02:00
|
|
|
struct stat stb;
|
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct dl *dl;
|
|
|
|
unsigned long long pos = 0;
|
|
|
|
unsigned long long maxsize;
|
|
|
|
struct extent *e;
|
|
|
|
int i;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
if (level == LEVEL_CONTAINER)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (level == 1 && raiddisks > 2) {
|
|
|
|
fprintf(stderr, Name ": imsm does not support more than 2 "
|
|
|
|
"in a raid1 configuration\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* We must have the container info already read in. */
|
|
|
|
if (!super)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (!dev) {
|
|
|
|
/* General test: make sure there is space for
|
|
|
|
* 'raiddisks' device extents of size 'size'.
|
|
|
|
*/
|
|
|
|
unsigned long long minsize = size*2 /* convert to blocks */;
|
|
|
|
int dcnt = 0;
|
|
|
|
if (minsize == 0)
|
|
|
|
minsize = MPB_SECTOR_CNT + IMSM_RESERVED_SECTORS;
|
|
|
|
for (dl = super->disks; dl ; dl = dl->next) {
|
|
|
|
int found = 0;
|
|
|
|
|
|
|
|
i = 0;
|
|
|
|
e = get_extents(super, dl);
|
|
|
|
if (!e) continue;
|
|
|
|
do {
|
|
|
|
unsigned long long esize;
|
|
|
|
esize = e[i].start - pos;
|
|
|
|
if (esize >= minsize)
|
|
|
|
found = 1;
|
|
|
|
pos = e[i].start + e[i].size;
|
|
|
|
i++;
|
|
|
|
} while (e[i-1].size);
|
|
|
|
if (found)
|
|
|
|
dcnt++;
|
|
|
|
free(e);
|
|
|
|
}
|
|
|
|
if (dcnt < raiddisks) {
|
|
|
|
fprintf(stderr, Name ": Not enough devices with space "
|
|
|
|
"for this array (%d < %d)\n",
|
|
|
|
dcnt, raiddisks);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
/* This device must be a member of the set */
|
|
|
|
if (stat(dev, &stb) < 0)
|
|
|
|
return 0;
|
|
|
|
if ((S_IFMT & stb.st_mode) != S_IFBLK)
|
|
|
|
return 0;
|
|
|
|
for (dl = super->disks ; dl ; dl = dl->next) {
|
|
|
|
if (dl->major == major(stb.st_rdev) &&
|
|
|
|
dl->minor == minor(stb.st_rdev))
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (!dl) {
|
|
|
|
fprintf(stderr, Name ": %s is not in the same imsm set\n",
|
|
|
|
dev);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
e = get_extents(super, dl);
|
|
|
|
maxsize = 0;
|
|
|
|
i = 0;
|
|
|
|
if (e) do {
|
|
|
|
unsigned long long esize;
|
|
|
|
esize = e[i].start - pos;
|
|
|
|
if (esize >= maxsize)
|
|
|
|
maxsize = esize;
|
|
|
|
pos = e[i].start + e[i].size;
|
|
|
|
i++;
|
|
|
|
} while (e[i-1].size);
|
|
|
|
*freesize = maxsize;
|
|
|
|
|
|
|
|
return 1;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct mdinfo *container_content_imsm(struct supertype *st)
|
|
|
|
{
|
2008-05-15 08:48:27 +02:00
|
|
|
/* Given a container loaded by load_super_imsm_all,
|
|
|
|
* extract information about all the arrays into
|
|
|
|
* an mdinfo tree.
|
|
|
|
*
|
|
|
|
* For each imsm_dev create an mdinfo, fill it in,
|
|
|
|
* then look for matching devices in super->disks
|
|
|
|
* and create appropriate device mdinfo.
|
|
|
|
*/
|
|
|
|
struct intel_super *super = st->sb;
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
struct mdinfo *rest = NULL;
|
|
|
|
int i;
|
2008-05-15 08:48:22 +02:00
|
|
|
|
2008-05-15 08:48:27 +02:00
|
|
|
for (i = 0; i < mpb->num_raid_devs; i++) {
|
|
|
|
struct imsm_dev *dev = get_imsm_dev(mpb, i);
|
|
|
|
struct imsm_vol *vol = &dev->vol;
|
|
|
|
struct imsm_map *map = vol->map;
|
|
|
|
struct mdinfo *this;
|
|
|
|
__u64 sz;
|
|
|
|
int slot;
|
|
|
|
|
|
|
|
this = malloc(sizeof(*this));
|
|
|
|
memset(this, 0, sizeof(*this));
|
|
|
|
this->next = rest;
|
|
|
|
rest = this;
|
|
|
|
|
|
|
|
this->array.level = get_imsm_raid_level(map);
|
|
|
|
this->array.raid_disks = map->num_members;
|
2008-06-17 00:36:38 +02:00
|
|
|
this->array.layout = imsm_level_to_layout(this->array.level);
|
2008-05-15 08:48:27 +02:00
|
|
|
this->array.md_minor = -1;
|
|
|
|
this->array.ctime = 0;
|
|
|
|
this->array.utime = 0;
|
|
|
|
this->array.chunk_size = __le16_to_cpu(map->blocks_per_strip) << 9;
|
|
|
|
this->array.state = !vol->dirty;
|
|
|
|
this->container_member = i;
|
2008-05-15 08:48:33 +02:00
|
|
|
if (map->map_state == IMSM_T_STATE_UNINITIALIZED || dev->vol.dirty)
|
|
|
|
this->resync_start = 0;
|
|
|
|
else
|
|
|
|
this->resync_start = ~0ULL;
|
|
|
|
|
2008-05-15 08:48:27 +02:00
|
|
|
strncpy(this->name, (char *) dev->volume, MAX_RAID_SERIAL_LEN);
|
|
|
|
this->name[MAX_RAID_SERIAL_LEN] = 0;
|
|
|
|
|
2008-05-27 01:18:55 +02:00
|
|
|
sprintf(this->text_version, "/%s/%d",
|
|
|
|
devnum2devname(st->container_dev),
|
|
|
|
this->container_member);
|
|
|
|
|
2008-05-15 08:48:27 +02:00
|
|
|
memset(this->uuid, 0, sizeof(this->uuid));
|
|
|
|
|
|
|
|
sz = __le32_to_cpu(dev->size_high);
|
|
|
|
sz <<= 32;
|
|
|
|
sz += __le32_to_cpu(dev->size_low);
|
|
|
|
this->component_size = sz;
|
|
|
|
this->array.size = this->component_size / 2;
|
|
|
|
|
|
|
|
for (slot = 0 ; slot < map->num_members; slot++) {
|
|
|
|
struct imsm_disk *disk;
|
|
|
|
struct mdinfo *info_d;
|
|
|
|
struct dl *d;
|
|
|
|
int idx;
|
|
|
|
__u32 s;
|
|
|
|
|
|
|
|
idx = __le32_to_cpu(map->disk_ord_tbl[slot] & ~(0xff << 24));
|
|
|
|
for (d = super->disks; d ; d = d->next)
|
|
|
|
if (d->index == idx)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (d == NULL)
|
|
|
|
break; /* shouldn't this be continue ?? */
|
|
|
|
|
|
|
|
info_d = malloc(sizeof(*info_d));
|
|
|
|
if (!info_d)
|
|
|
|
break; /* ditto ?? */
|
|
|
|
memset(info_d, 0, sizeof(*info_d));
|
|
|
|
info_d->next = this->devs;
|
|
|
|
this->devs = info_d;
|
|
|
|
|
|
|
|
disk = get_imsm_disk(mpb, idx);
|
|
|
|
s = __le32_to_cpu(disk->status);
|
|
|
|
|
|
|
|
info_d->disk.number = d->index;
|
|
|
|
info_d->disk.major = d->major;
|
|
|
|
info_d->disk.minor = d->minor;
|
|
|
|
info_d->disk.raid_disk = slot;
|
|
|
|
info_d->disk.state = s & CONFIGURED_DISK ? (1 << MD_DISK_ACTIVE) : 0;
|
|
|
|
info_d->disk.state |= s & FAILED_DISK ? (1 << MD_DISK_FAULTY) : 0;
|
|
|
|
info_d->disk.state |= s & USABLE_DISK ? (1 << MD_DISK_SYNC) : 0;
|
|
|
|
|
|
|
|
this->array.working_disks++;
|
|
|
|
|
|
|
|
info_d->events = __le32_to_cpu(mpb->generation_num);
|
|
|
|
info_d->data_offset = __le32_to_cpu(map->pba_of_lba0);
|
|
|
|
info_d->component_size = __le32_to_cpu(map->blocks_per_member);
|
|
|
|
if (d->devname)
|
|
|
|
strcpy(info_d->name, d->devname);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return rest;
|
2008-05-15 08:48:22 +02:00
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:41 +02:00
|
|
|
|
2008-05-27 01:18:57 +02:00
|
|
|
static int imsm_open_new(struct supertype *c, struct active_array *a,
|
|
|
|
char *inst)
|
2008-05-15 08:48:41 +02:00
|
|
|
{
|
2008-06-17 00:50:07 +02:00
|
|
|
dprintf("imsm: open_new %s\n", inst);
|
2008-05-27 01:18:57 +02:00
|
|
|
a->info.container_member = atoi(inst);
|
2008-05-15 08:48:41 +02:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:47 +02:00
|
|
|
static __u8 imsm_check_degraded(struct imsm_super *mpb, int n, int failed)
|
|
|
|
{
|
|
|
|
struct imsm_dev *dev = get_imsm_dev(mpb, n);
|
|
|
|
struct imsm_map *map = dev->vol.map;
|
|
|
|
|
|
|
|
if (!failed)
|
|
|
|
return map->map_state;
|
|
|
|
|
|
|
|
switch (get_imsm_raid_level(map)) {
|
|
|
|
case 0:
|
|
|
|
return IMSM_T_STATE_FAILED;
|
|
|
|
break;
|
|
|
|
case 1:
|
|
|
|
if (failed < map->num_members)
|
|
|
|
return IMSM_T_STATE_DEGRADED;
|
|
|
|
else
|
|
|
|
return IMSM_T_STATE_FAILED;
|
|
|
|
break;
|
|
|
|
case 10:
|
|
|
|
{
|
|
|
|
/**
|
|
|
|
* check to see if any mirrors have failed,
|
|
|
|
* otherwise we are degraded
|
|
|
|
*/
|
|
|
|
int device_per_mirror = 2; /* FIXME is this always the case?
|
|
|
|
* and are they always adjacent?
|
|
|
|
*/
|
|
|
|
int failed = 0;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < map->num_members; i++) {
|
|
|
|
int idx = get_imsm_disk_idx(map, i);
|
|
|
|
struct imsm_disk *disk = get_imsm_disk(mpb, idx);
|
|
|
|
|
|
|
|
if (__le32_to_cpu(disk->status) & FAILED_DISK)
|
|
|
|
failed++;
|
|
|
|
|
|
|
|
if (failed >= device_per_mirror)
|
|
|
|
return IMSM_T_STATE_FAILED;
|
|
|
|
|
|
|
|
/* reset 'failed' for next mirror set */
|
|
|
|
if (!((i + 1) % device_per_mirror))
|
|
|
|
failed = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return IMSM_T_STATE_DEGRADED;
|
|
|
|
}
|
|
|
|
case 5:
|
|
|
|
if (failed < 2)
|
|
|
|
return IMSM_T_STATE_DEGRADED;
|
|
|
|
else
|
|
|
|
return IMSM_T_STATE_FAILED;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return map->map_state;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int imsm_count_failed(struct imsm_super *mpb, struct imsm_map *map)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int failed = 0;
|
|
|
|
struct imsm_disk *disk;
|
|
|
|
|
|
|
|
for (i = 0; i < map->num_members; i++) {
|
|
|
|
int idx = get_imsm_disk_idx(map, i);
|
|
|
|
|
|
|
|
disk = get_imsm_disk(mpb, idx);
|
|
|
|
if (__le32_to_cpu(disk->status) & FAILED_DISK)
|
|
|
|
failed++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return failed;
|
2008-05-15 08:48:41 +02:00
|
|
|
}
|
|
|
|
|
2008-06-17 00:36:41 +02:00
|
|
|
static void imsm_set_array_state(struct active_array *a, int consistent)
|
|
|
|
{
|
|
|
|
int inst = a->info.container_member;
|
|
|
|
struct intel_super *super = a->container->sb;
|
|
|
|
struct imsm_dev *dev = get_imsm_dev(super->mpb, inst);
|
|
|
|
struct imsm_map *map = &dev->vol.map[0];
|
|
|
|
int dirty = !consistent;
|
|
|
|
int failed;
|
|
|
|
__u8 map_state;
|
|
|
|
|
|
|
|
if (a->resync_start == ~0ULL) {
|
|
|
|
failed = imsm_count_failed(super->mpb, map);
|
|
|
|
map_state = imsm_check_degraded(super->mpb, inst, failed);
|
|
|
|
if (!failed)
|
|
|
|
map_state = IMSM_T_STATE_NORMAL;
|
|
|
|
if (map->map_state != map_state) {
|
2008-06-17 00:50:07 +02:00
|
|
|
dprintf("imsm: map_state %d: %d\n",
|
2008-06-17 00:36:41 +02:00
|
|
|
inst, map_state);
|
|
|
|
map->map_state = map_state;
|
|
|
|
super->updates_pending++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dev->vol.dirty != dirty) {
|
2008-06-17 00:50:07 +02:00
|
|
|
dprintf("imsm: mark '%s' (%llu)\n",
|
2008-06-17 00:36:41 +02:00
|
|
|
dirty?"dirty":"clean", a->resync_start);
|
|
|
|
|
|
|
|
dev->vol.dirty = dirty;
|
|
|
|
super->updates_pending++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:49 +02:00
|
|
|
static void imsm_set_disk(struct active_array *a, int n, int state)
|
2008-05-15 08:48:41 +02:00
|
|
|
{
|
2008-05-15 08:48:49 +02:00
|
|
|
int inst = a->info.container_member;
|
|
|
|
struct intel_super *super = a->container->sb;
|
|
|
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struct imsm_dev *dev = get_imsm_dev(super->mpb, inst);
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|
|
struct imsm_map *map = dev->vol.map;
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|
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struct imsm_disk *disk;
|
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|
|
__u32 status;
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|
|
int failed = 0;
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|
int new_failure = 0;
|
|
|
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|
|
if (n > map->num_members)
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|
fprintf(stderr, "imsm: set_disk %d out of range 0..%d\n",
|
|
|
|
n, map->num_members - 1);
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|
|
|
|
|
|
|
if (n < 0)
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|
|
|
return;
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|
2008-06-17 00:50:07 +02:00
|
|
|
dprintf("imsm: set_disk %d:%x\n", n, state);
|
2008-05-15 08:48:49 +02:00
|
|
|
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|
|
disk = get_imsm_disk(super->mpb, get_imsm_disk_idx(map, n));
|
|
|
|
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|
|
/* check if we have seen this failure before */
|
|
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|
status = __le32_to_cpu(disk->status);
|
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|
|
if ((state & DS_FAULTY) && !(status & FAILED_DISK)) {
|
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|
status |= FAILED_DISK;
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|
|
disk->status = __cpu_to_le32(status);
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|
|
new_failure = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* the number of failures have changed, count up 'failed' to determine
|
|
|
|
* degraded / failed status
|
|
|
|
*/
|
|
|
|
if (new_failure && map->map_state != IMSM_T_STATE_FAILED)
|
|
|
|
failed = imsm_count_failed(super->mpb, map);
|
|
|
|
|
|
|
|
if (failed)
|
|
|
|
map->map_state = imsm_check_degraded(super->mpb, inst, failed);
|
|
|
|
|
|
|
|
if (new_failure)
|
|
|
|
super->updates_pending++;
|
2008-05-15 08:48:41 +02:00
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:47 +02:00
|
|
|
static int store_imsm_mpb(int fd, struct intel_super *super)
|
|
|
|
{
|
|
|
|
struct imsm_super *mpb = super->mpb;
|
|
|
|
__u32 mpb_size = __le32_to_cpu(mpb->mpb_size);
|
|
|
|
unsigned long long dsize;
|
|
|
|
unsigned long long sectors;
|
|
|
|
|
|
|
|
get_dev_size(fd, NULL, &dsize);
|
|
|
|
|
2008-06-17 00:36:41 +02:00
|
|
|
if (mpb_size > 512) {
|
|
|
|
/* -1 to account for anchor */
|
|
|
|
sectors = mpb_sectors(mpb) - 1;
|
2008-05-15 08:48:47 +02:00
|
|
|
|
2008-06-17 00:36:41 +02:00
|
|
|
/* write the extended mpb to the sectors preceeding the anchor */
|
|
|
|
if (lseek64(fd, dsize - (512 * (2 + sectors)), SEEK_SET) < 0)
|
|
|
|
return 1;
|
2008-05-15 08:48:47 +02:00
|
|
|
|
2008-06-17 00:36:41 +02:00
|
|
|
if (write(fd, super->buf + 512, mpb_size - 512) != mpb_size - 512)
|
|
|
|
return 1;
|
|
|
|
}
|
2008-05-15 08:48:47 +02:00
|
|
|
|
2008-06-17 00:36:41 +02:00
|
|
|
/* first block is stored on second to last sector of the disk */
|
|
|
|
if (lseek64(fd, dsize - (512 * 2), SEEK_SET) < 0)
|
2008-05-15 08:48:47 +02:00
|
|
|
return 1;
|
|
|
|
|
2008-06-17 00:36:41 +02:00
|
|
|
if (write(fd, super->buf, 512) != 512)
|
2008-05-15 08:48:47 +02:00
|
|
|
return 1;
|
|
|
|
|
|
|
|
fsync(fd);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-06-12 02:13:23 +02:00
|
|
|
static void imsm_sync_metadata(struct supertype *container)
|
2008-05-15 08:48:41 +02:00
|
|
|
{
|
2008-06-12 02:13:23 +02:00
|
|
|
struct intel_super *super = container->sb;
|
2008-05-15 08:48:47 +02:00
|
|
|
|
|
|
|
if (!super->updates_pending)
|
|
|
|
return;
|
|
|
|
|
2008-06-17 00:36:38 +02:00
|
|
|
write_super_imsm(super, 0);
|
2008-05-15 08:48:47 +02:00
|
|
|
|
|
|
|
super->updates_pending = 0;
|
2008-05-15 08:48:41 +02:00
|
|
|
}
|
|
|
|
|
2008-05-15 08:48:22 +02:00
|
|
|
struct superswitch super_imsm = {
|
|
|
|
#ifndef MDASSEMBLE
|
|
|
|
.examine_super = examine_super_imsm,
|
|
|
|
.brief_examine_super = brief_examine_super_imsm,
|
|
|
|
.detail_super = detail_super_imsm,
|
|
|
|
.brief_detail_super = brief_detail_super_imsm,
|
|
|
|
#endif
|
|
|
|
.match_home = match_home_imsm,
|
|
|
|
.uuid_from_super= uuid_from_super_imsm,
|
|
|
|
.getinfo_super = getinfo_super_imsm,
|
|
|
|
.update_super = update_super_imsm,
|
|
|
|
|
|
|
|
.avail_size = avail_size_imsm,
|
|
|
|
|
|
|
|
.compare_super = compare_super_imsm,
|
|
|
|
|
|
|
|
.load_super = load_super_imsm,
|
|
|
|
.init_super = init_zero_imsm,
|
|
|
|
.store_super = store_zero_imsm,
|
|
|
|
.free_super = free_super_imsm,
|
|
|
|
.match_metadata_desc = match_metadata_desc_imsm,
|
|
|
|
|
|
|
|
.validate_geometry = validate_geometry_imsm,
|
|
|
|
.external = 1,
|
2008-05-15 08:48:41 +02:00
|
|
|
|
|
|
|
/* for mdmon */
|
|
|
|
.open_new = imsm_open_new,
|
|
|
|
.load_super = load_super_imsm,
|
2008-05-27 01:18:54 +02:00
|
|
|
.set_array_state= imsm_set_array_state,
|
2008-05-15 08:48:41 +02:00
|
|
|
.set_disk = imsm_set_disk,
|
|
|
|
.sync_metadata = imsm_sync_metadata,
|
2008-05-15 08:48:22 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
/* super_imsm_container is set by validate_geometry_imsm when given a
|
|
|
|
* device that is not part of any array
|
|
|
|
*/
|
|
|
|
struct superswitch super_imsm_container = {
|
|
|
|
|
|
|
|
.validate_geometry = validate_geometry_imsm_container,
|
|
|
|
.init_super = init_super_imsm,
|
|
|
|
.add_to_super = add_to_super_imsm,
|
|
|
|
.write_init_super = write_init_super_imsm,
|
|
|
|
.getinfo_super = getinfo_super_imsm,
|
|
|
|
.load_super = load_super_imsm,
|
|
|
|
|
|
|
|
#ifndef MDASSEMBLE
|
|
|
|
.examine_super = examine_super_imsm,
|
|
|
|
.brief_examine_super = brief_examine_super_imsm,
|
|
|
|
.detail_super = detail_super_imsm,
|
|
|
|
.brief_detail_super = brief_detail_super_imsm,
|
|
|
|
#endif
|
|
|
|
|
|
|
|
.free_super = free_super_imsm,
|
|
|
|
|
|
|
|
.container_content = container_content_imsm,
|
|
|
|
|
|
|
|
.external = 1,
|
|
|
|
};
|
|
|
|
|
2008-07-12 12:27:38 +02:00
|
|
|
static struct superswitch super_imsm_volume = {
|
2008-05-15 08:48:22 +02:00
|
|
|
.update_super = update_super_imsm,
|
2008-06-14 02:42:09 +02:00
|
|
|
.init_super = init_super_imsm_volume,
|
|
|
|
.add_to_super = add_to_super_imsm_volume,
|
|
|
|
.getinfo_super = getinfo_super_imsm_volume,
|
2008-05-15 08:48:22 +02:00
|
|
|
.write_init_super = write_init_super_imsm,
|
|
|
|
|
|
|
|
.load_super = load_super_imsm,
|
|
|
|
.free_super = free_super_imsm,
|
2008-06-14 02:42:09 +02:00
|
|
|
.match_metadata_desc = match_metadata_desc_imsm_volume,
|
2008-05-15 08:48:22 +02:00
|
|
|
|
|
|
|
|
2008-06-14 02:42:09 +02:00
|
|
|
.validate_geometry = validate_geometry_imsm_volume,
|
2008-05-15 08:48:22 +02:00
|
|
|
.external = 2,
|
|
|
|
};
|