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
69
70
71
72
73
74
75
76
|
/*
* Copyright 2014,2015 International Business Machines
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __ZADDONS_H__
#define __ZADDONS_H__
/*
* Extensions of our hardware accelerated zlib implementation. Use
* with care, since they are not part of the official zlib.h
* interface.
*/
enum zlib_impl {
ZLIB_SW_IMPL = 0x00,
ZLIB_HW_IMPL = 0x01,
ZLIB_MAX_IMPL = 0x02,
ZLIB_IMPL_MASK = 0x0f,
/* Flags which influence special optimization behavior */
ZLIB_FLAG_USE_FLAT_BUFFERS = 0x10, /* GenWQE only */
ZLIB_FLAG_CACHE_HANDLES = 0x20, /* GenWQE only, fails for CAPI */
ZLIB_FLAG_OMIT_LAST_DICT = 0x40, /* Useful for cases like Genomics */
ZLIB_FLAG_USE_POLLING = 0x80, /* Use polling mode only for CAPI */
ZLIB_FLAG_DISABLE_CV_FOR_Z_STREAM_END = 0x100,
};
/**
* zlib_set_inflate_impl() - Set default implementation for inflate
*
* @impl: Either ZLIB_SW_IMPL or ZLIB_HW_IMPL.
*
* We can enforce trying hardware usage by setting
* ZLIB_HW_IMPL. Nevertheless if there is no hardware available
* e.g. driver not installed, no card plugged, or access rights wrong,
* the software version will be used as fallback.
*/
void zlib_set_inflate_impl(enum zlib_impl impl);
/**
* zlib_set_deflate_impl() - Set default implementation for deflate
*
* @impl: Either ZLIB_SW_IMPL or ZLIB_HW_IMPL.
*
* We can enforce trying hardware usage by setting
* ZLIB_HW_IMPL. Nevertheless if there is no hardware available
* e.g. driver not installed, no card plugged, or access rights wrong,
* the software version will be used as fallback.
*/
void zlib_set_deflate_impl(enum zlib_impl impl);
/**
* zlib_set_accelerator() - Set accelerator type to be used
*
* @accel: GENWQE or CAPI
* @card_no: card id or -1 for automatic card selection
*
* We support different types of hardware acceleration
* devices. Examples are our PCIe based GenWQE accelerator or the CAPI
* implementation for IBM System p.
*/
void zlib_set_accelerator(const char *accel, int card_no);
#endif /* __ZADDONS_H__ */
|
