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lvm2/lib/device/device-types.h
Peter Rajnoha c6f48b7c1a refactor: make device type recognition code common for general use
Changes:

- move device type registration out of "type filter" (filter.c)
to a separate and new dev-type.[ch] for common use throughout the code

- the structure for keeping the major numbers detected for available
device types and available partitioning available is stored in
"dev_types" structure now

- move common partitioning detection code to dev-type.[ch] as well
together with other device-related functions bound to dev_types
(see dev-type.h for the interface)

The dev-type interface contains all common functions used to detect
subsystems/device types, signature/superblock recognition code,
type-specific device properties and other common device properties
(bound to dev_types), including partitioning support.

- add dev_types instance to cmd context as cmd->dev_types for common use

- use cmd->dev_types throughout as a central point for providing
information about device types
2013-06-12 12:08:56 +02:00

65 lines
2.2 KiB
C

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2013 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
typedef struct {
const char name[15];
const int8_t max_partitions;
const char *desc;
} dev_known_type_t;
/*
* Devices are only checked for partition tables if their minor number
* is a multiple of the number corresponding to their type below
* i.e. this gives the granularity of whole-device minor numbers.
* Use 1 if the device is not partitionable.
*
* The list can be supplemented with devices/types in the config file.
*/
static const dev_known_type_t _dev_known_types[] = {
{"ide", 64, "IDE disk"},
{"sd", 16, "SCSI disk"},
{"md", 1, "Multiple Disk (MD/SoftRAID)"},
{"mdp", 1, "Partitionable MD"},
{"loop", 1, "Loop device"},
{"dasd", 4, "DASD disk (IBM S/390, zSeries)"},
{"dac960", 8, "DAC960"},
{"nbd", 16, "Network Block Device"},
{"ida", 16, "Compaq SMART2"},
{"cciss", 16, "Compaq CCISS array"},
{"ubd", 16, "User-mode virtual block device"},
{"ataraid", 16, "ATA Raid"},
{"drbd", 16, "Distributed Replicated Block Device (DRBD)"},
{"emcpower", 16, "EMC Powerpath"},
{"power2", 16, "EMC Powerpath"},
{"i2o_block", 16, "i2o Block Disk"},
{"iseries/vd", 8, "iSeries disks"},
{"gnbd", 1, "Network block device"},
{"ramdisk", 1, "RAM disk"},
{"aoe", 16, "ATA over Ethernet"},
{"device-mapper", 1, "Mapped device"},
{"xvd", 16, "Xen virtual block device"},
{"vdisk", 8, "SUN's LDOM virtual block device"},
{"ps3disk", 16, "PlayStation 3 internal disk"},
{"virtblk", 8, "VirtIO disk"},
{"mmc", 16, "MMC block device"},
{"blkext", 1, "Extended device partitions"},
{"fio", 16, "Fusion IO"},
{"mtip32xx", 16, "Micron PCIe SSD"},
{"vtms", 16, "Violin Memory"},
{"skd", 16, "STEC"},
{"scm", 8, "Storage Class Memory (IBM S/390)"},
{"", 0, ""}
};