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xbdvar.h revision 1.11 
      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  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *      This product includes software developed by Christian Limpach.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 
     35 #ifndef _XEN_XBDVAR_H_
     36 #define _XEN_XBDVAR_H_
     37 
     38 #include <sys/simplelock.h>
     39 
     40 struct xbd_softc {
     41 	device_t		sc_dev;		/* base device glue */
     42 	struct dk_softc		sc_dksc;	/* generic disk interface */
     43 	unsigned long		sc_xd_device;	/* cookie identifying device */
     44 	struct dk_intf		*sc_di;		/* pseudo-disk interface */
     45 	struct simplelock	sc_slock;	/* our lock */
     46 	int			sc_shutdown;	/* about to be removed */
     47 #if NRND > 0
     48 	rndsource_element_t	sc_rnd_source;
     49 #endif
     50 };
     51 
     52 struct xbd_attach_args {
     53 	const char 		*xa_device;
     54 	vdisk_t			*xa_xd;
     55 	struct dk_intf		*xa_dkintf;
     56 	struct sysctlnode	*xa_diskcookies;
     57 };
     58 
     59 int xbd_scan(device_t, struct xbd_attach_args *, cfprint_t);
     60 void xbd_suspend(void);
     61 void xbd_resume(void);
     62 
     63 #endif /* _XEN_XBDVAR_H_ */
     64