ceph/src/spdk/ocf/src/ocf_io_priv.h

   1 /*
   2  * Copyright(c) 2012-2018 Intel Corporation
   3  * SPDX-License-Identifier: BSD-3-Clause-Clear
   4  */
   5
   6 #ifndef __OCF_IO_PRIV_H__
   7 #define __OCF_IO_PRIV_H__
   8
   9 #include "ocf/ocf.h"
  10 #include "utils/utils_io_allocator.h"
  11
  12 struct ocf_io_meta {
  13         ocf_volume_t volume;
  14         const struct ocf_io_ops *ops;
  15         env_atomic ref_count;
  16         struct ocf_request *req;
  17 };
  18
  19
  20 struct ocf_io_internal {
  21         struct ocf_io_meta meta;
  22         struct ocf_io io;
  23 };
  24
  25 int ocf_io_allocator_init(ocf_io_allocator_t allocator, ocf_io_allocator_type_t type,
  26                 uint32_t priv_size, const char *name);
  27
  28
  29 struct ocf_io *ocf_io_new(ocf_volume_t volume, ocf_queue_t queue,
  30                 uint64_t addr, uint32_t bytes, uint32_t dir,
  31                 uint32_t io_class, uint64_t flags);
  32
  33 static inline void ocf_io_start(struct ocf_io *io)
  34 {
  35         /*
  36          * We want to call start() callback only once, so after calling
  37          * we set it to NULL to prevent multiple calls.
  38          */
  39         if (io->start) {
  40                 io->start(io);
  41                 io->start = NULL;
  42         }
  43 }
  44
  45 static inline void ocf_io_end(struct ocf_io *io, int error)
  46 {
  47         if (io->end)
  48                 io->end(io, error);
  49
  50 }
  51
  52 #endif /* __OCF_IO_PRIV_H__ */