sys/dev/dmover/dmover_util.c

   1 /*      $NetBSD: dmover_util.c,v 1.3.12.3 2004/09/21 13:27:36 skrll Exp $       */
   2
   3 /*
   4  * Copyright (c) 2002 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 /*
  39  * dmover_util.c: Utility functions for dmover-api.
  40  */
  41
  42 #include <sys/cdefs.h>
  43 __KERNEL_RCSID(0, "$NetBSD: dmover_util.c,v 1.3.12.3 2004/09/21 13:27:36 skrll Exp $");
  44
  45 #include <sys/param.h>
  46 #include <sys/systm.h>
  47
  48 #include <dev/dmover/dmovervar.h>
  49
  50 /****************************************************************************
  51  * Well-known data mover function names.
  52  ****************************************************************************/
  53
  54 const char dmover_funcname_zero[] = "zero";
  55 const char dmover_funcname_fill8[] = "fill8";
  56 const char dmover_funcname_copy[] = "copy";
  57 const char dmover_funcname_iscsi_crc32c[] = "iscsi-crc32c";
  58 const char dmover_funcname_xor2[] = "xor2";
  59 const char dmover_funcname_xor3[] = "xor3";
  60 const char dmover_funcname_xor4[] = "xor4";
  61 const char dmover_funcname_xor5[] = "xor5";
  62 const char dmover_funcname_xor6[] = "xor6";
  63 const char dmover_funcname_xor7[] = "xor7";
  64 const char dmover_funcname_xor8[] = "xor8";
  65
  66 /****************************************************************************
  67  * Utility functions.
  68  ****************************************************************************/
  69
  70 /*
  71  * dmover_algdesc_lookup:
  72  *
  73  *      Look up the algdesc in the provided array by name.
  74  */
  75 const struct dmover_algdesc *
  76 dmover_algdesc_lookup(const struct dmover_algdesc *dad, int ndad,
  77     const char *name)
  78 {
  79
  80         for (; ndad != 0; ndad--, dad++) {
  81                 if (name[0] == dad->dad_name[0] &&
  82                     strcmp(name, dad->dad_name) == 0)
  83                         return (dad);
  84         }
  85         return (NULL);
  86 }