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.
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.
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]
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
29 #include <sys/debug.h>
30 #include <sys/types.h>
35 #include <sys/systm.h>
38 typedef size_t zlen_t
;
39 #define compress_func z_compress_level
40 #define uncompress_func z_uncompress
47 typedef uLongf zlen_t
;
48 #define compress_func compress2
49 #define uncompress_func uncompress
54 gzip_compress(void *s_start
, void *d_start
, size_t s_len
, size_t d_len
, int n
)
57 zlen_t dstlen
= d_len
;
59 ASSERT(d_len
<= s_len
);
61 /* check if hardware accelerator can be used */
62 if (qat_dc_use_accel(s_len
)) {
63 ret
= qat_compress(QAT_COMPRESS
, s_start
, s_len
, d_start
,
65 if (ret
== CPA_STATUS_SUCCESS
) {
66 return ((size_t)dstlen
);
67 } else if (ret
== CPA_STATUS_INCOMPRESSIBLE
) {
71 bcopy(s_start
, d_start
, s_len
);
74 /* if hardware compression fails, do it again with software */
77 if (compress_func(d_start
, &dstlen
, s_start
, s_len
, n
) != Z_OK
) {
81 bcopy(s_start
, d_start
, s_len
);
85 return ((size_t)dstlen
);
90 gzip_decompress(void *s_start
, void *d_start
, size_t s_len
, size_t d_len
, int n
)
92 zlen_t dstlen
= d_len
;
94 ASSERT(d_len
>= s_len
);
96 /* check if hardware accelerator can be used */
97 if (qat_dc_use_accel(d_len
)) {
98 if (qat_compress(QAT_DECOMPRESS
, s_start
, s_len
,
99 d_start
, d_len
, &dstlen
) == CPA_STATUS_SUCCESS
)
101 /* if hardware de-compress fail, do it again with software */
104 if (uncompress_func(d_start
, &dstlen
, s_start
, s_len
) != Z_OK
)