92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*
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* Copyright(c) 2012-2018 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause-Clear
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*/
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#ifndef __METADATA_SUPERBLOCK_H__
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#define __METADATA_SUPERBLOCK_H__
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#include <ocf/ocf_def.h>
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#include <ocf/ocf_def.h>
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#define CACHE_MAGIC_NUMBER 0x187E1CA6
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/**
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* @brief OCF cache metadata configuration superblock
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*/
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struct ocf_superblock_config {
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/** WARNING: Metadata probe disregards metadata version when
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* checking if the cache is dirty - position of next two fields
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* shouldn't change!! */
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uint8_t clean_shutdown;
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uint8_t dirty_flushed;
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uint32_t magic_number;
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uint32_t metadata_version;
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/* Currently set cache mode */
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ocf_cache_mode_t cache_mode;
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char name[OCF_CACHE_NAME_SIZE];
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ocf_cache_line_t cachelines;
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uint32_t valid_parts_no;
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ocf_cache_line_size_t line_size;
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ocf_metadata_layout_t metadata_layout;
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uint32_t core_count;
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unsigned long valid_core_bitmap[(OCF_CORE_MAX /
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(sizeof(unsigned long) * 8)) + 1];
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ocf_cleaning_t cleaning_policy_type;
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struct cleaning_policy_config cleaning[CLEANING_POLICY_TYPE_MAX];
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ocf_eviction_t eviction_policy_type;
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ocf_promotion_t promotion_policy_type;
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/* Current core sequence number */
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ocf_core_id_t curr_core_seq_no;
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struct ocf_user_part_config user_parts[OCF_IO_CLASS_MAX + 1];
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/*
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* Checksum for each metadata region.
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* This field has to be the last one!
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*/
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uint32_t checksum[metadata_segment_max];
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};
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/**
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* @brief OCF cache metadata runtime superblock
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*/
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struct ocf_superblock_runtime {
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struct ocf_part freelist_part;
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struct ocf_user_part_runtime user_parts[OCF_IO_CLASS_MAX + 1];
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uint32_t cleaning_thread_access;
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};
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static inline void ocf_metadata_set_shutdown_status(ocf_cache_t cache,
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enum ocf_metadata_shutdown_status shutdown_status,
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ocf_metadata_end_t cmpl, void *priv)
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{
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cache->metadata.iface.set_shutdown_status(cache, shutdown_status,
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cmpl, priv);
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}
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static inline void ocf_metadata_load_superblock(ocf_cache_t cache,
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ocf_metadata_end_t cmpl, void *priv)
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{
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cache->metadata.iface.load_superblock(cache, cmpl, priv);
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}
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static inline void ocf_metadata_flush_superblock(ocf_cache_t cache,
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ocf_metadata_end_t cmpl, void *priv)
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{
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cache->metadata.iface.flush_superblock(cache, cmpl, priv);
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}
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#endif /* METADATA_SUPERBLOCK_H_ */
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