49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*/
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#ifndef FTL_SB_CURRENT_H
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#define FTL_SB_CURRENT_H
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#include "spdk/uuid.h"
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#include "ftl_sb_common.h"
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#define FTL_METADATA_VERSION_4 4
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#define FTL_METADATA_VERSION_CURRENT FTL_METADATA_VERSION_4
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struct ftl_superblock {
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struct ftl_superblock_header header;
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struct spdk_uuid uuid;
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/* Flag describing clean shutdown */
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uint64_t clean;
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/* Number of surfaced LBAs */
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uint64_t lba_cnt;
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/* Percentage of base device blocks not exposed to the user */
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uint64_t overprovisioning;
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/* Maximum IO depth per band relocate */
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uint64_t max_reloc_qdepth;
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/* Reserved field */
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uint64_t reserved;
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uint32_t reserved2;
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struct ftl_superblock_gc_info gc_info;
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struct ftl_superblock_md_region md_layout_head;
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};
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SPDK_STATIC_ASSERT(offsetof(struct ftl_superblock, header) == 0,
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"Invalid placement of header");
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SPDK_STATIC_ASSERT(FTL_SUPERBLOCK_SIZE >= sizeof(struct ftl_superblock),
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"FTL SB metadata size is invalid");
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#endif /* FTL_SB_CURRENT_H */
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