ceph/src/spdk/module/bdev/ftl/bdev_ftl.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (c) Intel Corporation.
   5  *   All rights reserved.
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   7  *   Redistribution and use in source and binary forms, with or without
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  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
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  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
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  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef SPDK_BDEV_FTL_H
  35 #define SPDK_BDEV_FTL_H
  36
  37 #include "spdk/stdinc.h"
  38 #include "spdk/bdev_module.h"
  39 #include "spdk/ftl.h"
  40
  41 struct spdk_bdev;
  42 struct spdk_uuid;
  43
  44 struct ftl_bdev_info {
  45         const char              *name;
  46         struct spdk_uuid        uuid;
  47 };
  48
  49 struct ftl_bdev_init_opts {
  50         /* Bdev's name */
  51         const char                              *name;
  52         /* Base bdev's name */
  53         const char                              *base_bdev;
  54         /* Write buffer bdev's name */
  55         const char                              *cache_bdev;
  56         /* Bdev's mode */
  57         uint32_t                                mode;
  58         /* UUID if device is restored from SSD */
  59         struct spdk_uuid                        uuid;
  60         /* FTL library configuration */
  61         struct spdk_ftl_conf                    ftl_conf;
  62 };
  63
  64 typedef void (*ftl_bdev_init_fn)(const struct ftl_bdev_info *, void *, int);
  65
  66 int     bdev_ftl_create_bdev(const struct ftl_bdev_init_opts *bdev_opts,
  67                              ftl_bdev_init_fn cb, void *cb_arg);
  68 void    bdev_ftl_delete_bdev(const char *name, spdk_bdev_unregister_cb cb_fn, void *cb_arg);
  69
  70 #endif /* SPDK_BDEV_FTL_H */