sys/arch/xen/include/xbdvar.h

   1 /* $NetBSD: xbdvar.h,v 1.11 2008/04/16 18:41:48 cegger Exp $ */
   2
   3 /*
   4  *
   5  * Copyright (c) 2004 Christian Limpach.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29
  30 #ifndef _XEN_XBDVAR_H_
  31 #define _XEN_XBDVAR_H_
  32
  33 #include <sys/simplelock.h>
  34
  35 struct xbd_softc {
  36         device_t                sc_dev;         /* base device glue */
  37         struct dk_softc         sc_dksc;        /* generic disk interface */
  38         unsigned long           sc_xd_device;   /* cookie identifying device */
  39         struct dk_intf          *sc_di;         /* pseudo-disk interface */
  40         struct simplelock       sc_slock;       /* our lock */
  41         int                     sc_shutdown;    /* about to be removed */
  42 #if NRND > 0
  43         rndsource_element_t     sc_rnd_source;
  44 #endif
  45 };
  46
  47 struct xbd_attach_args {
  48         const char              *xa_device;
  49         vdisk_t                 *xa_xd;
  50         struct dk_intf          *xa_dkintf;
  51         struct sysctlnode       *xa_diskcookies;
  52 };
  53
  54 int xbd_scan(device_t, struct xbd_attach_args *, cfprint_t);
  55 void xbd_suspend(void);
  56 void xbd_resume(void);
  57
  58 #endif /* _XEN_XBDVAR_H_ */