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>
31 #include <sys/strings.h>
37 typedef size_t zlen_t;
38 #define compress_func z_compress_level
39 #define uncompress_func z_uncompress
44 typedef uLongf zlen_t;
45 #define compress_func compress2
46 #define uncompress_func uncompress
51 gzip_compress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
54 zlen_t dstlen = d_len;
56 ASSERT(d_len <= s_len);
58 /* check if hardware accelerator can be used */
59 if (qat_dc_use_accel(s_len)) {
60 ret = qat_compress(QAT_COMPRESS, s_start, s_len, d_start,
62 if (ret == CPA_STATUS_SUCCESS) {
63 return ((size_t)dstlen);
64 } else if (ret == CPA_STATUS_INCOMPRESSIBLE) {
68 bcopy(s_start, d_start, s_len);
71 /* if hardware compression fails, do it again with software */
74 if (compress_func(d_start, &dstlen, s_start, s_len, n) != Z_OK) {
78 bcopy(s_start, d_start, s_len);
82 return ((size_t)dstlen);
87 gzip_decompress(void *s_start, void *d_start, size_t s_len, size_t d_len, int n)
89 zlen_t dstlen = d_len;
91 ASSERT(d_len >= s_len);
93 /* check if hardware accelerator can be used */
94 if (qat_dc_use_accel(d_len)) {
95 if (qat_compress(QAT_DECOMPRESS, s_start, s_len,
96 d_start, d_len, &dstlen) == CPA_STATUS_SUCCESS)
98 /* if hardware de-compress fail, do it again with software */
101 if (uncompress_func(d_start, &dstlen, s_start, s_len) != Z_OK)