c8ab874d7c
Layout of metadata will be part of the superblock at the end of the upgrade. Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: If888866806e948ee07f0777612da73ab8b7548b1 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13385 Community-CI: Mellanox Build Bot 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>
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/* 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_PREV_H
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#define FTL_SB_PREV_H
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#include "spdk/uuid.h"
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#include "ftl_sb_common.h"
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/**
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* Magic number identifies FTL superblock
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*
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* This old (pre v3) version has a bug - it's generating the magic number off 16b numbers, but only utilizing 8b from each
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*/
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#define FTL_MAGIC_V2(a, b, c, d) \
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((UINT64_C(a) << 24) | (UINT64_C(b) << 16) | (UINT64_C(c) << 8) | UINT64_C(d))
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#define FTL_SUPERBLOCK_MAGIC_V2 FTL_MAGIC_V2(0x1410, 0x1683, 0x1920, 0x1989)
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#define FTL_SB_VERSION_0 0
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#define FTL_SB_VERSION_1 1
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#define FTL_SB_VERSION_2 2
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#define FTL_SB_VERSION_3 3
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struct ftl_superblock_v2 {
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struct ftl_superblock_header header;
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struct spdk_uuid uuid;
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/* Current sequence number */
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uint64_t seq_id;
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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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/* Number of reserved addresses not exposed to the user */
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size_t lba_rsvd;
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/* Maximum IO depth per band relocate */
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size_t max_reloc_qdepth;
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/* Maximum active band relocates */
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size_t max_active_relocs;
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/* Use append instead of write */
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bool use_append;
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/* Maximum supported number of IO channels */
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uint32_t max_io_channels;
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/* Last L2P checkpoint +1 (i.e. min_seq_id, 0:no ckpt) */
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uint64_t ckpt_seq_id;
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struct ftl_superblock_gc_info gc_info;
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};
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SPDK_STATIC_ASSERT(offsetof(struct ftl_superblock_v2, header) == 0,
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"Invalid placement of header");
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SPDK_STATIC_ASSERT(FTL_SUPERBLOCK_SIZE >= sizeof(struct ftl_superblock_v2),
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"FTL SB metadata size is invalid");
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#endif /* FTL_SB_PREV_H */
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