module/zfs/qat_compress.h

   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 #ifndef _SYS_QAT_COMPRESS_H
  23 #define _SYS_QAT_COMPRESS_H
  24
  25 #if defined(_KERNEL) && defined(HAVE_QAT)
  26 #include <sys/zio.h>
  27 #include "cpa.h"
  28 #include "dc/cpa_dc.h"
  29
  30 typedef enum qat_compress_dir {
  31         QAT_COMPRESS = 0,
  32         QAT_DECOMPRESS = 1,
  33 } qat_compress_dir_t;
  34
  35 extern int qat_init(void);
  36 extern void qat_fini(void);
  37 extern boolean_t qat_use_accel(size_t s_len);
  38 extern int qat_compress(qat_compress_dir_t dir, char *src, int src_len,
  39     char *dst, int dst_len, size_t *c_len);
  40 #else
  41 #define CPA_STATUS_SUCCESS      0
  42 #define qat_init()
  43 #define qat_fini()
  44 #define qat_use_accel(s_len)    0
  45 #define qat_compress(dir, s, sl, d, dl, cl)     0
  46 #endif
  47
  48 #endif /* _SYS_QAT_COMPRESS_H */