xref: /netbsd-src/sys/arch/xen/include/xbdvar.h (revision 5f99165065355bf6728981dc7750b9f62cd67dc1)
1 /* $NetBSD: xbdvar.h,v 1.17 2015/05/02 08:00:08 mlelstv 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/rndsource.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 	int			sc_shutdown;	/* about to be removed */
40 	krndsource_t	sc_rnd_source;
41 };
42 
43 struct xbd_attach_args {
44 	const char 		*xa_device;
45 	vdisk_t			*xa_xd;
46 	struct sysctlnode	*xa_diskcookies;
47 };
48 
49 int xbd_scan(device_t, struct xbd_attach_args *, cfprint_t);
50 void xbd_suspend(void);
51 void xbd_resume(void);
52 
53 #endif /* _XEN_XBDVAR_H_ */
54