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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | ||
22 | /* | |
23 | * Copyright 2007 Sun Microsystems, Inc. All rights reserved. | |
24 | * Use is subject to license terms. | |
25 | */ | |
26 | ||
e5dc681a | 27 | |
34dc7c2f BB |
28 | |
29 | #include <sys/debug.h> | |
30 | #include <sys/types.h> | |
cf637391 | 31 | #include "qat.h" |
34dc7c2f BB |
32 | |
33 | #ifdef _KERNEL | |
eaa8687b | 34 | |
34dc7c2f | 35 | #include <sys/systm.h> |
eaa8687b BB |
36 | #include <sys/zmod.h> |
37 | ||
38 | typedef size_t zlen_t; | |
d1d7e268 MK |
39 | #define compress_func z_compress_level |
40 | #define uncompress_func z_uncompress | |
eaa8687b BB |
41 | |
42 | #else /* _KERNEL */ | |
43 | ||
34dc7c2f | 44 | #include <strings.h> |
eaa8687b BB |
45 | #include <zlib.h> |
46 | ||
47 | typedef uLongf zlen_t; | |
d1d7e268 MK |
48 | #define compress_func compress2 |
49 | #define uncompress_func uncompress | |
eaa8687b | 50 | |
34dc7c2f BB |
51 | #endif |
52 | ||
53 | size_t | |
54 | gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) | |
55 | { | |
32dce2da | 56 | int ret; |
eaa8687b | 57 | zlen_t dstlen = d_len; |
34dc7c2f BB |
58 | |
59 | ASSERT(d_len <= s_len); | |
60 | ||
6a9d6359 | 61 | /* check if hardware accelerator can be used */ |
cf637391 | 62 | if (qat_dc_use_accel(s_len)) { |
32dce2da TC |
63 | ret = qat_compress(QAT_COMPRESS, s_start, s_len, d_start, |
64 | d_len, &dstlen); | |
65 | if (ret == CPA_STATUS_SUCCESS) { | |
6a9d6359 | 66 | return ((size_t)dstlen); |
32dce2da TC |
67 | } else if (ret == CPA_STATUS_INCOMPRESSIBLE) { |
68 | if (d_len != s_len) | |
69 | return (s_len); | |
70 | ||
71 | bcopy(s_start, d_start, s_len); | |
72 | return (s_len); | |
73 | } | |
74 | /* if hardware compression fails, do it again with software */ | |
6a9d6359 | 75 | } |
76 | ||
eaa8687b | 77 | if (compress_func(d_start, &dstlen, s_start, s_len, n) != Z_OK) { |
34dc7c2f BB |
78 | if (d_len != s_len) |
79 | return (s_len); | |
80 | ||
81 | bcopy(s_start, d_start, s_len); | |
82 | return (s_len); | |
83 | } | |
84 | ||
02730c33 | 85 | return ((size_t)dstlen); |
34dc7c2f BB |
86 | } |
87 | ||
88 | /*ARGSUSED*/ | |
89 | int | |
90 | gzip_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n) | |
91 | { | |
eaa8687b | 92 | zlen_t dstlen = d_len; |
34dc7c2f BB |
93 | |
94 | ASSERT(d_len >= s_len); | |
95 | ||
6a9d6359 | 96 | /* check if hardware accelerator can be used */ |
cf637391 | 97 | if (qat_dc_use_accel(d_len)) { |
6a9d6359 | 98 | if (qat_compress(QAT_DECOMPRESS, s_start, s_len, |
99 | d_start, d_len, &dstlen) == CPA_STATUS_SUCCESS) | |
100 | return (0); | |
101 | /* if hardware de-compress fail, do it again with software */ | |
102 | } | |
103 | ||
eaa8687b | 104 | if (uncompress_func(d_start, &dstlen, s_start, s_len) != Z_OK) |
34dc7c2f BB |
105 | return (-1); |
106 | ||
107 | return (0); | |
108 | } |