Home | History | Annotate | Line # | Download | only in dev
ldvar.h revision 1.14
      1  1.14   simonb /*	$NetBSD: ldvar.h,v 1.14 2008/08/11 06:43:37 simonb Exp $	*/
      2   1.1       ad 
      3   1.1       ad /*-
      4   1.1       ad  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      5   1.1       ad  * All rights reserved.
      6   1.1       ad  *
      7   1.1       ad  * This code is derived from software contributed to The NetBSD Foundation
      8   1.1       ad  * by Andrew Doran.
      9   1.1       ad  *
     10   1.1       ad  * Redistribution and use in source and binary forms, with or without
     11   1.1       ad  * modification, are permitted provided that the following conditions
     12   1.1       ad  * are met:
     13   1.1       ad  * 1. Redistributions of source code must retain the above copyright
     14   1.1       ad  *    notice, this list of conditions and the following disclaimer.
     15   1.1       ad  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.1       ad  *    notice, this list of conditions and the following disclaimer in the
     17   1.1       ad  *    documentation and/or other materials provided with the distribution.
     18   1.1       ad  *
     19   1.1       ad  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20   1.1       ad  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21   1.1       ad  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22   1.1       ad  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23   1.1       ad  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24   1.1       ad  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25   1.1       ad  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26   1.1       ad  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27   1.1       ad  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28   1.1       ad  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29   1.1       ad  * POSSIBILITY OF SUCH DAMAGE.
     30   1.1       ad  */
     31   1.1       ad 
     32   1.3       ad #ifndef	_DEV_LDVAR_H_
     33   1.3       ad #define	_DEV_LDVAR_H_
     34   1.1       ad 
     35  1.12       ad #include <sys/mutex.h>
     36  1.12       ad 
     37   1.1       ad struct ld_softc {
     38   1.1       ad 	struct	device sc_dv;
     39   1.1       ad 	struct	disk sc_dk;
     40  1.10     yamt 	struct	bufq_state *sc_bufq;
     41  1.12       ad 	kmutex_t sc_mutex;
     42   1.1       ad #if NRND > 0
     43   1.1       ad 	rndsource_element_t	sc_rnd_source;
     44   1.1       ad #endif
     45   1.5       ad 	int	sc_queuecnt;		/* current h/w queue depth */
     46   1.5       ad 	int	sc_ncylinders;		/* # cylinders */
     47   1.5       ad 	int	sc_nheads;		/* # heads */
     48   1.5       ad 	int	sc_nsectors;		/* # sectors per track */
     49   1.1       ad 
     50   1.1       ad 	/*
     51   1.1       ad 	 * The following are filled by hardware specific attachment code.
     52   1.1       ad 	 */
     53   1.5       ad 	int	sc_flags;		/* control flags */
     54   1.8      dbj 	uint64_t	sc_secperunit;		/* # sectors in total */
     55   1.5       ad 	int	sc_secsize;		/* sector size in bytes */
     56   1.5       ad 	int	sc_maxxfer;		/* max xfer size in bytes */
     57   1.5       ad 	int	sc_maxqueuecnt;		/* maximum h/w queue depth */
     58   1.1       ad 
     59   1.1       ad 	int	(*sc_dump)(struct ld_softc *, void *, int, int);
     60  1.14   simonb 	int	(*sc_flush)(struct ld_softc *, int);
     61   1.1       ad 	int	(*sc_start)(struct ld_softc *, struct buf *);
     62   1.1       ad };
     63   1.1       ad 
     64  1.14   simonb /* sc_flags */
     65   1.7  thorpej #define	LDF_ENABLED	0x001		/* device enabled */
     66   1.7  thorpej #define	LDF_WLABEL	0x008		/* label is writable */
     67   1.7  thorpej #define	LDF_LABELLING	0x010		/* writing label */
     68   1.7  thorpej #define	LDF_DRAIN	0x020		/* maxqueuecnt has changed; drain */
     69   1.7  thorpej #define	LDF_DETACH	0x040		/* detach pending */
     70   1.7  thorpej #define	LDF_KLABEL	0x080		/* keep label on close */
     71   1.7  thorpej #define	LDF_VLABEL	0x100		/* label is valid */
     72   1.1       ad 
     73  1.14   simonb /* sc_flush() flags */
     74  1.14   simonb #define	LDFL_POLL	0x001		/* poll for completion */
     75  1.14   simonb 
     76   1.4       ad int	ldadjqparam(struct ld_softc *, int);
     77   1.1       ad void	ldattach(struct ld_softc *);
     78   1.4       ad int	ldbegindetach(struct ld_softc *, int);
     79   1.4       ad void	ldenddetach(struct ld_softc *);
     80   1.1       ad void	lddone(struct ld_softc *, struct buf *);
     81   1.1       ad 
     82   1.3       ad #endif	/* !_DEV_LDVAR_H_ */
     83