Spdk/lib/ftl/ftl_sb_current.h
Artur Paszkiewicz c6880a3974 ftl: superblock
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: Ic8ca0cd3bf3621ad5604e83ed24c0fa59a83f124
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13313
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-08-02 19:00:42 +00:00

49 lines
1.1 KiB
C

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