ceph/src/spdk/ocf/src/ocf_volume_priv.h

   1 /*
   2  * Copyright(c) 2012-2018 Intel Corporation
   3  * SPDX-License-Identifier: BSD-3-Clause-Clear
   4  */
   5
   6 #ifndef __OCF_VOLUME_PRIV_H__
   7 #define __OCF_VOLUME_PRIV_H__
   8
   9 #include "ocf_env.h"
  10 #include "ocf_io_priv.h"
  11 #include "utils/utils_refcnt.h"
  12 #include "utils/utils_io_allocator.h"
  13
  14 struct ocf_volume_extended {
  15         ocf_io_allocator_type_t allocator_type;
  16 };
  17
  18 struct ocf_volume_type {
  19         const struct ocf_volume_properties *properties;
  20         struct ocf_io_allocator allocator;
  21 };
  22
  23 struct ocf_volume {
  24         ocf_volume_type_t type;
  25         struct ocf_volume_uuid uuid;
  26         bool opened;
  27         bool uuid_copy;
  28         void *priv;
  29         ocf_cache_t cache;
  30         struct list_head core_pool_item;
  31         struct {
  32                 unsigned discard_zeroes:1;
  33                         /* true if reading discarded pages returns 0 */
  34         } features;
  35         struct ocf_refcnt refcnt;
  36 };
  37
  38 int ocf_volume_type_init(struct ocf_volume_type **type,
  39                 const struct ocf_volume_properties *properties,
  40                 const struct ocf_volume_extended *extended);
  41
  42 void ocf_volume_type_deinit(struct ocf_volume_type *type);
  43
  44 void ocf_volume_move(ocf_volume_t volume, ocf_volume_t from);
  45
  46 void ocf_volume_set_uuid(ocf_volume_t volume,
  47                 const struct ocf_volume_uuid *uuid);
  48
  49 static inline void ocf_volume_submit_metadata(struct ocf_io *io)
  50 {
  51         ocf_volume_t volume = ocf_io_get_volume(io);
  52
  53         ENV_BUG_ON(!volume->type->properties->ops.submit_metadata);
  54
  55         volume->type->properties->ops.submit_metadata(io);
  56 }
  57
  58 static inline void ocf_volume_submit_write_zeroes(struct ocf_io *io)
  59 {
  60         ocf_volume_t volume = ocf_io_get_volume(io);
  61
  62         ENV_BUG_ON(!volume->type->properties->ops.submit_write_zeroes);
  63
  64         volume->type->properties->ops.submit_write_zeroes(io);
  65 }
  66
  67 #endif  /*__OCF_VOLUME_PRIV_H__ */