Home | History | Annotate | Line # | Download | only in i2o
iopio.h revision 1.2 
      1 /*	$NetBSD: iopio.h,v 1.2 2001/09/27 18:43:38 ad Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _I2O_IOPIO_H_
     40 #define	_I2O_IOPIO_H_
     41 
     42 #define	IOP_MAX_MSG_XFERS	3	/* Maximum transfer count per msg */
     43 #define	IOP_MAX_OUTBOUND	256	/* Maximum outbound queue depth */
     44 #define	IOP_MAX_INBOUND		256	/* Maximum inbound queue depth */
     45 #define	IOP_MF_RESERVE		4	/* Frames to reserve for ctl ops */
     46 #define	IOP_MAX_XFER		64*1024	/* Maximum transfer size */
     47 #define	IOP_MAX_MSG_SIZE	160	/* Maximum message frame size */
     48 #define	IOP_MIN_MSG_SIZE	128	/* Minumum size supported by IOP */
     49 
     50 struct iop_tidmap {
     51 	u_short	it_tid;
     52 	u_short	it_flags;
     53 	char	it_dvname[sizeof(((struct device *)NULL)->dv_xname)];
     54 };
     55 #define	IT_CONFIGURED	0x02	/* target configured */
     56 
     57 struct ioppt_buf {
     58 	void	*ptb_data;	/* pointer to buffer */
     59 	size_t	ptb_datalen;	/* buffer size in bytes */
     60 	int	ptb_out;	/* non-zero if transfer is to IOP */
     61 };
     62 
     63 struct ioppt {
     64 	void	*pt_msg;	/* pointer to message buffer */
     65 	size_t	pt_msglen;	/* message buffer size in bytes */
     66 	void	*pt_reply;	/* pointer to reply buffer */
     67 	size_t	pt_replylen;	/* reply buffer size in bytes */
     68 	int	pt_timo;	/* completion timeout in ms */
     69 	int	pt_nbufs;	/* number of transfers */
     70 	struct	ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */
     71 };
     72 
     73 #define	IOPIOCPT	_IOWR('u', 0, struct ioppt)
     74 #define	IOPIOCGLCT	_IOWR('u', 1, struct iovec)
     75 #define	IOPIOCGSTATUS	_IOWR('u', 2, struct iovec)
     76 #define	IOPIOCRECONFIG	_IO('u', 3)
     77 #define	IOPIOCGTIDMAP	_IOWR('u', 4, struct iovec)
     78 
     79 #endif	/* !_I2O_IOPIO_H_ */
     80