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xbdvar.h revision 1.13 
      1 /* $NetBSD: xbdvar.h,v 1.13 2011/11/19 22:51:21 tls 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 	krndsource_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_ */
     59