a6dbe3721e
per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the 4 digit year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc). Contribution date used "--follow -C95%" to get the most accurate date. Note that several files in this patch didn't end the license/(c) block with a blank comment line so these were added as the vast majority of files do have this last blank line. Simply there for consistency. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192 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> Community-CI: Mellanox Build Bot
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (C) 2022 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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