109 lines
2.6 KiB
C
109 lines
2.6 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 LAYER_EVICTION_POLICY_OPS_H_
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#define LAYER_EVICTION_POLICY_OPS_H_
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#include "eviction.h"
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#include "../metadata/metadata.h"
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/**
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* @brief Initialize cache line before adding it into eviction
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*
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* @note This operation is called under WR metadata lock
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*/
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static inline void ocf_eviction_init_cache_line(struct ocf_cache *cache,
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ocf_cache_line_t line, ocf_part_id_t part_id)
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{
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uint8_t type;
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type = cache->conf_meta->eviction_policy_type;
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ENV_BUG_ON(type >= ocf_eviction_max);
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if (likely(evict_policy_ops[type].init_cline))
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evict_policy_ops[type].init_cline(cache, line);
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}
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static inline void ocf_eviction_purge_cache_line(
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struct ocf_cache *cache, ocf_cache_line_t line)
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{
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uint8_t type = cache->conf_meta->eviction_policy_type;
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ENV_BUG_ON(type >= ocf_eviction_max);
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if (likely(evict_policy_ops[type].rm_cline)) {
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OCF_METADATA_EVICTION_LOCK();
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evict_policy_ops[type].rm_cline(cache, line);
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OCF_METADATA_EVICTION_UNLOCK();
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}
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}
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static inline bool ocf_eviction_can_evict(struct ocf_cache *cache)
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{
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uint8_t type = cache->conf_meta->eviction_policy_type;
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if (likely(evict_policy_ops[type].can_evict))
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return evict_policy_ops[type].can_evict(cache);
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return true;
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}
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static inline uint32_t ocf_eviction_need_space(struct ocf_cache *cache,
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uint32_t io_queue, ocf_part_id_t part_id, uint32_t clines,
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ocf_core_id_t core_id)
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{
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uint8_t type;
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uint32_t result = 0;
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ENV_BUG_ON(core_id >= OCF_CORE_MAX);
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type = cache->conf_meta->eviction_policy_type;
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ENV_BUG_ON(type >= ocf_eviction_max);
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if (likely(evict_policy_ops[type].req_clines)) {
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/*
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* This is called under METADATA WR lock. No need to get
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* eviction lock.
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*/
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result = evict_policy_ops[type].req_clines(cache, io_queue,
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part_id, clines, core_id);
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}
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return result;
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}
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static inline void ocf_eviction_set_hot_cache_line(
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struct ocf_cache *cache, ocf_cache_line_t line)
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{
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uint8_t type = cache->conf_meta->eviction_policy_type;
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ENV_BUG_ON(type >= ocf_eviction_max);
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if (likely(evict_policy_ops[type].hot_cline)) {
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OCF_METADATA_EVICTION_LOCK();
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evict_policy_ops[type].hot_cline(cache, line);
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OCF_METADATA_EVICTION_UNLOCK();
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}
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}
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static inline void ocf_eviction_initialize(struct ocf_cache *cache,
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ocf_part_id_t part_id)
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{
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uint8_t type = cache->conf_meta->eviction_policy_type;
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ENV_BUG_ON(type >= ocf_eviction_max);
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if (likely(evict_policy_ops[type].init_evp)) {
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OCF_METADATA_EVICTION_LOCK();
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evict_policy_ops[type].init_evp(cache, part_id);
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OCF_METADATA_EVICTION_UNLOCK();
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}
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}
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#endif /* LAYER_EVICTION_POLICY_OPS_H_ */
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