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/*
* Copyright (C) 2018-2022 Red Hat, Inc. All rights reserved.
*
* This file is part of the device-mapper userspace tools.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef DEVICE_MAPPER_VDO_LIMITS_H
#define DEVICE_MAPPER_VDO_LIMITS_H
#ifndef SECTOR_SHIFT
#define SECTOR_SHIFT 9L
#endif
#define DM_VDO_BLOCK_SIZE UINT64_C(8) // 4KiB in sectors
#define DM_VDO_BLOCK_SIZE_KB (DM_VDO_BLOCK_SIZE << SECTOR_SHIFT)
#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_MB (128) // 128MiB
#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MAXIMUM_MB (16 * 1024 * 1024 - 1) // 16TiB - 1
#define DM_VDO_BLOCK_MAP_CACHE_SIZE_MINIMUM_PER_LOGICAL_THREAD (4096 * DM_VDO_BLOCK_SIZE_KB)
#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MINIMUM 1
#define DM_VDO_BLOCK_MAP_ERA_LENGTH_MAXIMUM 16380
#define DM_VDO_INDEX_MEMORY_SIZE_MINIMUM_MB 256 // 0.25 GiB
#define DM_VDO_INDEX_MEMORY_SIZE_MAXIMUM_MB (1024 * 1024 * 1024) // 1TiB
#define DM_VDO_SLAB_SIZE_MINIMUM_MB 128 // 128MiB
#define DM_VDO_SLAB_SIZE_MAXIMUM_MB (32 * 1024) // 32GiB
#define DM_VDO_SLABS_MAXIMUM 8192
#define DM_VDO_LOGICAL_SIZE_MAXIMUM (UINT64_C(4) * 1024 * 1024 * 1024 * 1024 * 1024 >> SECTOR_SHIFT) // 4PiB
#define DM_VDO_PHYSICAL_SIZE_MAXIMUM (UINT64_C(64) * DM_VDO_BLOCK_SIZE_KB * 1024 * 1024 * 1024 >> SECTOR_SHIFT) // 256TiB
#define DM_VDO_ACK_THREADS_MINIMUM 0
#define DM_VDO_ACK_THREADS_MAXIMUM 100
#define DM_VDO_BIO_THREADS_MINIMUM 1
#define DM_VDO_BIO_THREADS_MAXIMUM 100
#define DM_VDO_BIO_ROTATION_MINIMUM 1
#define DM_VDO_BIO_ROTATION_MAXIMUM 1024
#define DM_VDO_CPU_THREADS_MINIMUM 1
#define DM_VDO_CPU_THREADS_MAXIMUM 100
#define DM_VDO_HASH_ZONE_THREADS_MINIMUM 0
#define DM_VDO_HASH_ZONE_THREADS_MAXIMUM 100
#define DM_VDO_LOGICAL_THREADS_MINIMUM 0
#define DM_VDO_LOGICAL_THREADS_MAXIMUM 60
#define DM_VDO_PHYSICAL_THREADS_MINIMUM 0
#define DM_VDO_PHYSICAL_THREADS_MAXIMUM 16
#define DM_VDO_MAX_DISCARD_MINIMUM 1
#define DM_VDO_MAX_DISCARD_MAXIMUM (UINT32_MAX / (uint32_t)(DM_VDO_BLOCK_SIZE_KB))
#endif // DEVICE_MAPPER_VDO_LIMITS_H
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