1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SPDK_VBDEV_SPLIT_H
#define SPDK_VBDEV_SPLIT_H
#include "spdk/bdev_module.h"
/**
* Add given disk name to split config. If bdev with \c base_bdev_name name
* exist the split bdevs will be created right away, if not the split bdevs will
* be created when base bdev became be available (during examination process).
*
* \param base_bdev_name Base bdev name
* \param split_count number of splits to be created.
* \param split_size_mb size of each bdev. If 0 use base bdev size / split_count
* \return value >= 0 - number of splits create. Negative errno code on error.
*/
int create_vbdev_split(const char *base_bdev_name, unsigned split_count, uint64_t split_size_mb);
/**
* Remove all created split bdevs and split config.
*
* \param base_bdev_name base bdev name
* \return 0 on success or negative errno value.
*/
int vbdev_split_destruct(const char *base_bdev_name);
/**
* Get the spdk_bdev_part_base associated with the given split base_bdev.
*
* \param base_bdev Bdev to get the part_base from
* \return pointer to the associated spdk_bdev_part_base
* \return NULL if the base_bdev is not being split by the split module
*/
struct spdk_bdev_part_base *vbdev_split_get_part_base(struct spdk_bdev *base_bdev);
#endif /* SPDK_VBDEV_SPLIT_H */
|
