sys/dev/raidframe/rf_netbsd.h

   1 /*      $NetBSD: rf_netbsd.h,v 1.28 2007/11/13 11:39:41 yamt Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Greg Oster; Jason R. Thorpe.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _RF__RF_NETBSDSTUFF_H_
  33 #define _RF__RF_NETBSDSTUFF_H_
  34
  35 #include <sys/fcntl.h>
  36 #include <sys/systm.h>
  37 #include <sys/vnode.h>
  38 #include <sys/pool.h>
  39 #include <sys/disk.h>
  40
  41 #include <dev/dkvar.h>
  42 #include <dev/raidframe/raidframevar.h>
  43
  44 struct raidcinfo {
  45         struct vnode *ci_vp;    /* component device's vnode */
  46         dev_t   ci_dev;         /* component device's dev_t */
  47         RF_ComponentLabel_t ci_label; /* components RAIDframe label */
  48 #if 0
  49         size_t  ci_size;        /* size */
  50         char   *ci_path;        /* path to component */
  51         size_t  ci_pathlen;     /* length of component path */
  52 #endif
  53 };
  54
  55
  56 /* a little structure to serve as a container for all the various
  57    global pools used in RAIDframe */
  58
  59 struct RF_Pools_s {
  60         struct pool alloclist;   /* AllocList */
  61         struct pool asm_hdr;     /* Access Stripe Map Header */
  62         struct pool asmap;       /* Access Stripe Map */
  63         struct pool asmhle;      /* Access Stripe Map Header List Elements */
  64         struct pool callback;    /* Callback descriptors */
  65         struct pool dagh;        /* DAG headers */
  66         struct pool dagnode;     /* DAG nodes */
  67         struct pool daglist;     /* DAG lists */
  68         struct pool dagpcache;   /* DAG pointer/param cache */
  69         struct pool dqd;         /* Disk Queue Data */
  70         struct pool fss;         /* Failed Stripe Structures */
  71         struct pool funclist;    /* Function Lists */
  72         struct pool mcpair;      /* Mutex/Cond Pairs */
  73         struct pool pda;         /* Physical Disk Access structures */
  74         struct pool pss;         /* Parity Stripe Status */
  75         struct pool pss_issued;  /* Parity Stripe Status Issued */
  76         struct pool rad;         /* Raid Access Descriptors */
  77         struct pool reconbuffer; /* reconstruction buffer (header) pool */
  78         struct pool revent;      /* reconstruct events */
  79         struct pool stripelock;  /* StripeLock */
  80         struct pool vfple;       /* VoidFunctionPtr List Elements */
  81         struct pool vple;        /* VoidPointer List Elements */
  82 };
  83
  84 extern struct RF_Pools_s rf_pools;
  85 void rf_pool_init(struct pool *, size_t, const char *, size_t, size_t);
  86 int rf_buf_queue_check(int);
  87
  88 /* XXX probably belongs in a different .h file. */
  89 typedef struct RF_AutoConfig_s {
  90         char devname[56];       /* the name of this component */
  91         int flag;               /* a general-purpose flag */
  92         dev_t dev;              /* the device for this component */
  93         struct vnode *vp;       /* Mr. Vnode Pointer */
  94         RF_ComponentLabel_t *clabel;  /* the label */
  95         struct RF_AutoConfig_s *next; /* the next autoconfig structure
  96                                          in this set. */
  97 } RF_AutoConfig_t;
  98
  99 typedef struct RF_ConfigSet_s {
 100         struct RF_AutoConfig_s *ac; /* all of the autoconfig structures for
 101                                        this config set. */
 102         int rootable;               /* Set to 1 if this set can be root */
 103         struct RF_ConfigSet_s *next;
 104 } RF_ConfigSet_t;
 105
 106 #endif /* _RF__RF_NETBSDSTUFF_H_ */