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