Integrated Edon-R hash function.

          --- old/usr/src/uts/common/fs/zfs/sys/zio_checksum.h
          +++ new/usr/src/uts/common/fs/zfs/sys/zio_checksum.h

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END
  20   20   */
  21   21  /*
  22   22   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  23   23   */
  24   24  
  25   25  #ifndef _SYS_ZIO_CHECKSUM_H
  26   26  #define _SYS_ZIO_CHECKSUM_H
  27   27  
  28   28  #include <sys/zio.h>
  29   29  
  30   30  #ifdef  __cplusplus
  31   31  extern "C" {
  32   32  #endif
  33   33  
  34   34  /*
  35   35   * Signature for checksum functions.
  36   36   */
  37   37  typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp);
  38   38  
  39   39  /*
  40   40   * Information about each checksum function.
  41   41   */
  42   42  typedef struct zio_checksum_info {
  43   43          zio_checksum_t  *ci_func[2]; /* checksum function for each byteorder */
  44   44          int             ci_correctable; /* number of correctable bits   */
  45   45          int             ci_eck;         /* uses zio embedded checksum? */
  46   46          int             ci_dedup;       /* strong enough for dedup? */
  47   47          char            *ci_name;       /* descriptive name */
  48   48  } zio_checksum_info_t;
  49   49  
  50   50  typedef struct zio_bad_cksum {
  51   51          zio_cksum_t             zbc_expected;
  52   52          zio_cksum_t             zbc_actual;
  53   53          const char              *zbc_checksum_name;
  54   54          uint8_t                 zbc_byteswapped;

  55   55          uint8_t                 zbc_injected;
  56   56          uint8_t                 zbc_has_cksum;  /* expected/actual valid */
  57   57  } zio_bad_cksum_t;
  58   58  
  59   59  extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS];
  60   60  
  61   61  /*
  62   62   * Checksum routines.
  63   63   */
  64   64  extern zio_checksum_t zio_checksum_SHA256;
       65 +extern zio_checksum_t zio_checksum_EdonR512_256;
       66 +extern zio_checksum_t zio_checksum_EdonR512_256_byteswap;
  65   67  
  66   68  extern void zio_checksum_compute(zio_t *zio, enum zio_checksum checksum,
  67   69      void *data, uint64_t size);
  68   70  extern int zio_checksum_error(zio_t *zio, zio_bad_cksum_t *out);
  69   71  extern enum zio_checksum spa_dedup_checksum(spa_t *spa);
  70   72  
  71   73  #ifdef  __cplusplus
  72   74  }
  73   75  #endif
  74   76  
  75   77  #endif  /* _SYS_ZIO_CHECKSUM_H */
    

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