ceph/src/spdk/ocf/src/metadata/metadata_collision.h

   1 /*
   2  * Copyright(c) 2012-2018 Intel Corporation
   3  * SPDX-License-Identifier: BSD-3-Clause-Clear
   4  */
   5
   6 #ifndef __METADATA_COLLISION_H__
   7 #define __METADATA_COLLISION_H__
   8
   9 /**
  10  * @brief Metadata map structure
  11  */
  12
  13 struct ocf_metadata_list_info {
  14         ocf_cache_line_t prev_col;
  15                 /*!<  Previous cache line in collision list */
  16         ocf_cache_line_t next_col;
  17                 /*!<  Next cache line in collision list*/
  18         ocf_cache_line_t partition_prev;
  19                 /*!<  Previous cache line in the same partition*/
  20         ocf_cache_line_t partition_next;
  21                 /*!<  Next cache line in the same partition*/
  22         ocf_part_id_t partition_id : 8;
  23                 /*!<  ID of partition where is assigned this cache line*/
  24 } __attribute__((packed));
  25
  26 /**
  27  * @brief Metadata map structure
  28  */
  29
  30 struct ocf_metadata_map {
  31         uint64_t core_line;
  32                 /*!<  Core line addres on cache mapped by this strcture */
  33
  34         uint16_t core_id;
  35                 /*!<  ID of core where is assigned this cache line*/
  36
  37         uint8_t status[];
  38                 /*!<  Entry status structure e.g. valid, dirty...*/
  39 } __attribute__((packed));
  40
  41 static inline ocf_cache_line_t ocf_metadata_map_lg2phy(
  42                 struct ocf_cache *cache, ocf_cache_line_t coll_idx)
  43 {
  44         return cache->metadata.iface.layout_iface->lg2phy(cache,
  45                     coll_idx);
  46 }
  47
  48 static inline ocf_cache_line_t ocf_metadata_map_phy2lg(
  49                 struct ocf_cache *cache, ocf_cache_line_t cache_line)
  50 {
  51         return cache->metadata.iface.layout_iface->phy2lg(cache,
  52                     cache_line);
  53 }
  54
  55 static inline void ocf_metadata_set_collision_info(
  56                 struct ocf_cache *cache, ocf_cache_line_t line,
  57                 ocf_cache_line_t next, ocf_cache_line_t prev)
  58 {
  59         cache->metadata.iface.set_collision_info(cache, line, next, prev);
  60 }
  61
  62 static inline void ocf_metadata_get_collision_info(
  63                 struct ocf_cache *cache, ocf_cache_line_t line,
  64                 ocf_cache_line_t *next, ocf_cache_line_t *prev)
  65 {
  66         cache->metadata.iface.get_collision_info(cache, line, next, prev);
  67 }
  68
  69 static inline void ocf_metadata_set_collision_next(
  70                 struct ocf_cache *cache, ocf_cache_line_t line,
  71                 ocf_cache_line_t next)
  72 {
  73         cache->metadata.iface.set_collision_next(cache, line, next);
  74 }
  75
  76 static inline void ocf_metadata_set_collision_prev(
  77                 struct ocf_cache *cache, ocf_cache_line_t line,
  78                 ocf_cache_line_t prev)
  79 {
  80         cache->metadata.iface.set_collision_prev(cache, line, prev);
  81 }
  82
  83 static inline ocf_cache_line_t ocf_metadata_get_collision_next(
  84                 struct ocf_cache *cache, ocf_cache_line_t line)
  85 {
  86         return cache->metadata.iface.get_collision_next(cache, line);
  87 }
  88
  89 static inline ocf_cache_line_t ocf_metadata_get_collision_prev(
  90                 struct ocf_cache *cache, ocf_cache_line_t line)
  91 {
  92         return cache->metadata.iface.get_collision_prev(cache, line);
  93 }
  94
  95 void ocf_metadata_add_to_collision(struct ocf_cache *cache,
  96                 ocf_core_id_t core_id, uint64_t core_line,
  97                 ocf_cache_line_t hash, ocf_cache_line_t cache_line);
  98
  99 void ocf_metadata_remove_from_collision(struct ocf_cache *cache,
 100                 ocf_cache_line_t line, ocf_part_id_t part_id);
 101
 102 #endif /* METADATA_COLLISION_H_ */