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git://sourceware.org/git/lvm2.git
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3320ab8334
Drop very old original format of VDO target and focus on V2 version. So some variables were renamed or replaced. There is no compatibility preserved (with assumption so far this is experimental feature and there is no real user). Note - version currently VDO calls this version 6.2.
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/*
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* Copyright (C) 2018 Red Hat, Inc. All rights reserved.
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*
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* This file is part of the device-mapper userspace tools.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef DEVICE_MAPPER_VDO_LIMITS_H
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#define DEVICE_MAPPER_VDO_LIMITS_H
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#define DM_VDO_BLOCK_SIZE UINT64_C(8) // 4KiB in sectors
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#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB (128) // 128MiB
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#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MAXIMUM_MB (16 * 1024 * 1024 - 1) // 16TiB - 1
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#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_PER_LOGICAL_THREAD (4096 * DM_VDO_BLOCK_SIZE_KB)
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#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MINIMUM (1)
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#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MAXIMUM (16380)
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#define DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB (256) // 0.25 GiB
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#define DM_VDO_INDEX_MEMORY_SIZE_MAXIMUM_MB (1024 * 1024 * 1024) // 1TiB
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//#define DM_VDO_READ_CACHE_SIZE_MINIMUM_MB (0)
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#define DM_VDO_READ_CACHE_SIZE_MAXIMUM_MB (16 * 1024 * 1024 - 1) // 16TiB - 1
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#define DM_VDO_SLAB_SIZE_MINIMUM_MB (128) // 128MiB
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#define DM_VDO_SLAB_SIZE_MAXIMUM_MB (32 * 1024) // 32GiB
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//#define DM_VDO_LOGICAL_SIZE_MINIMUM_MB (0)
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#define DM_VDO_LOGICAL_SIZE_MAXIMUM_MB (UINT64_C(4) * 1024 * 1024 * 1024) // 4PiB
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//#define DM_VDO_ACK_THREADS_MINIMUM (0)
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#define DM_VDO_ACK_THREADS_MAXIMUM (100)
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#define DM_VDO_BIO_THREADS_MINIMUM (1)
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#define DM_VDO_BIO_THREADS_MAXIMUM (100)
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#define DM_VDO_BIO_ROTATION_MINIMUM (1)
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#define DM_VDO_BIO_ROTATION_MAXIMUM (1024)
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#define DM_VDO_CPU_THREADS_MINIMUM (1)
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#define DM_VDO_CPU_THREADS_MAXIMUM (100)
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//#define DM_VDO_HASH_ZONE_THREADS_MINIMUM (0)
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#define DM_VDO_HASH_ZONE_THREADS_MAXIMUM (100)
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//#define DM_VDO_LOGICAL_THREADS_MINIMUM (0)
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#define DM_VDO_LOGICAL_THREADS_MAXIMUM (100)
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//#define DM_VDO_PHYSICAL_THREADS_MINIMUM (0)
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#define DM_VDO_PHYSICAL_THREADS_MAXIMUM (16)
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#define DM_VDO_MAX_DISCARD_MINIMUM (1)
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#define DM_VDO_MAX_DISCARD_MAXIMUM (UINT32_MAX / 4096)
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#endif // DEVICE_MAPPER_VDO_LIMITS_H
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