]>
Commit | Line | Data |
---|---|---|
19c1eb82 BB |
1 | /*****************************************************************************\ |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | * Copyright (C) 2007 The Regents of the University of California. | |
4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
6 | * UCRL-CODE-235197 | |
7 | * | |
8 | * This file is part of the SPL, Solaris Porting Layer. | |
3d6af2dd | 9 | * For details, see <http://zfsonlinux.org/>. |
19c1eb82 BB |
10 | * |
11 | * The SPL is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
15 | * | |
16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT | |
17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | * for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. | |
23 | ***************************************************************************** | |
24 | * Solaris Porting LAyer Tests (SPLAT) Zlib Compression Tests. | |
25 | \*****************************************************************************/ | |
26 | ||
df870a69 BB |
27 | #include <sys/zmod.h> |
28 | #include <sys/random.h> | |
29 | #include <sys/kmem.h> | |
10946b02 | 30 | #include <sys/vmem.h> |
19c1eb82 BB |
31 | #include "splat-internal.h" |
32 | ||
33 | #define SPLAT_ZLIB_NAME "zlib" | |
34 | #define SPLAT_ZLIB_DESC "Zlib Compression Tests" | |
35 | ||
36 | #define SPLAT_ZLIB_TEST1_ID 0x0f01 | |
37 | #define SPLAT_ZLIB_TEST1_NAME "compress/uncompress" | |
38 | #define SPLAT_ZLIB_TEST1_DESC "Compress/Uncompress Test" | |
39 | ||
40 | #define BUFFER_SIZE (128 * 1024) | |
41 | ||
42 | static int | |
43 | splat_zlib_test1_check(struct file *file, void *src, void *dst, void *chk, | |
44 | int level) | |
45 | { | |
46 | size_t dst_len = BUFFER_SIZE; | |
47 | size_t chk_len = BUFFER_SIZE; | |
48 | int rc; | |
49 | ||
50 | memset(dst, 0, BUFFER_SIZE); | |
51 | memset(chk, 0, BUFFER_SIZE); | |
52 | ||
53 | rc = z_compress_level(dst, &dst_len, src, BUFFER_SIZE, level); | |
54 | if (rc != Z_OK) { | |
55 | splat_vprint(file, SPLAT_ZLIB_TEST1_NAME, | |
56 | "Failed level %d z_compress_level(), %d\n", level, rc); | |
57 | return -EINVAL; | |
58 | } | |
59 | ||
60 | rc = z_uncompress(chk, &chk_len, dst, dst_len); | |
61 | if (rc != Z_OK) { | |
62 | splat_vprint(file, SPLAT_ZLIB_TEST1_NAME, | |
63 | "Failed level %d z_uncompress(), %d\n", level, rc); | |
64 | return -EINVAL; | |
65 | } | |
66 | ||
67 | rc = memcmp(src, chk, BUFFER_SIZE); | |
68 | if (rc) { | |
69 | splat_vprint(file, SPLAT_ZLIB_TEST1_NAME, | |
70 | "Failed level %d memcmp()), %d\n", level, rc); | |
71 | return -EINVAL; | |
72 | } | |
73 | ||
74 | splat_vprint(file, SPLAT_ZLIB_TEST1_NAME, | |
75 | "Passed level %d, compressed %d bytes to %d bytes\n", | |
76 | level, BUFFER_SIZE, (int)dst_len); | |
77 | ||
78 | return 0; | |
79 | } | |
80 | ||
81 | /* | |
82 | * Compress a buffer, uncompress the newly compressed buffer, then | |
83 | * compare it to the original. Do this for all 9 compression levels. | |
84 | */ | |
85 | static int | |
86 | splat_zlib_test1(struct file *file, void *arg) | |
87 | { | |
88 | void *src = NULL, *dst = NULL, *chk = NULL; | |
89 | int i, rc, level; | |
90 | ||
91 | src = vmalloc(BUFFER_SIZE); | |
92 | if (src == NULL) { | |
93 | rc = -ENOMEM; | |
94 | goto out; | |
95 | } | |
96 | ||
97 | dst = vmalloc(BUFFER_SIZE); | |
98 | if (dst == NULL) { | |
99 | rc = -ENOMEM; | |
100 | goto out; | |
101 | } | |
102 | ||
103 | chk = vmalloc(BUFFER_SIZE); | |
104 | if (chk == NULL) { | |
105 | rc = -ENOMEM; | |
106 | goto out; | |
107 | } | |
108 | ||
109 | /* Source buffer is a repeating 1024 byte random pattern. */ | |
110 | random_get_pseudo_bytes(src, sizeof(uint8_t) * 1024); | |
111 | for (i = 1; i < 128; i++) | |
112 | memcpy(src + (i * 1024), src, 1024); | |
113 | ||
114 | for (level = 1; level <= 9; level++) | |
115 | if ((rc = splat_zlib_test1_check(file, src, dst, chk, level))) | |
116 | break; | |
117 | out: | |
118 | if (src) | |
119 | vfree(src); | |
120 | ||
121 | if (dst) | |
122 | vfree(dst); | |
123 | ||
124 | if (chk) | |
125 | vfree(chk); | |
126 | ||
127 | return rc; | |
128 | } | |
129 | ||
130 | splat_subsystem_t * | |
131 | splat_zlib_init(void) | |
132 | { | |
133 | splat_subsystem_t *sub; | |
134 | ||
135 | sub = kmalloc(sizeof(*sub), GFP_KERNEL); | |
136 | if (sub == NULL) | |
137 | return NULL; | |
138 | ||
139 | memset(sub, 0, sizeof(*sub)); | |
140 | strncpy(sub->desc.name, SPLAT_ZLIB_NAME, SPLAT_NAME_SIZE); | |
141 | strncpy(sub->desc.desc, SPLAT_ZLIB_DESC, SPLAT_DESC_SIZE); | |
142 | INIT_LIST_HEAD(&sub->subsystem_list); | |
143 | INIT_LIST_HEAD(&sub->test_list); | |
144 | spin_lock_init(&sub->test_lock); | |
145 | sub->desc.id = SPLAT_SUBSYSTEM_ZLIB; | |
146 | ||
ec06701b | 147 | splat_test_init(sub, SPLAT_ZLIB_TEST1_NAME, SPLAT_ZLIB_TEST1_DESC, |
19c1eb82 BB |
148 | SPLAT_ZLIB_TEST1_ID, splat_zlib_test1); |
149 | ||
150 | return sub; | |
151 | } | |
152 | ||
153 | void | |
154 | splat_zlib_fini(splat_subsystem_t *sub) | |
155 | { | |
156 | ASSERT(sub); | |
157 | ||
ec06701b | 158 | splat_test_fini(sub, SPLAT_ZLIB_TEST1_ID); |
19c1eb82 BB |
159 | |
160 | kfree(sub); | |
161 | } | |
162 | ||
163 | int | |
164 | splat_zlib_id(void) { | |
165 | return SPLAT_SUBSYSTEM_ZLIB; | |
166 | } |