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iopio.h revision 1.5.6.1 
      1 /*	$NetBSD: iopio.h,v 1.5.6.1 2008/06/02 13:23:17 mjf 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _I2O_IOPIO_H_
     33 #define	_I2O_IOPIO_H_
     34 
     35 #define	IOP_MAX_MSG_XFERS	3	/* Maximum transfer count per msg */
     36 #define	IOP_MAX_OUTBOUND	256	/* Maximum outbound queue depth */
     37 #define	IOP_MAX_INBOUND		256	/* Maximum inbound queue depth */
     38 #define	IOP_MF_RESERVE		4	/* Frames to reserve for ctl ops */
     39 #define	IOP_MAX_XFER		64*1024	/* Maximum transfer size */
     40 #define	IOP_MAX_MSG_SIZE	160	/* Maximum message frame size */
     41 #define	IOP_MIN_MSG_SIZE	128	/* Minumum size supported by IOP */
     42 
     43 struct iop_tidmap {
     44 	u_short	it_tid;
     45 	u_short	it_flags;
     46 	char	it_dvname[16];
     47 };
     48 #define	IT_CONFIGURED	0x02	/* target configured */
     49 
     50 struct ioppt_buf {
     51 	void	*ptb_data;	/* pointer to buffer */
     52 	size_t	ptb_datalen;	/* buffer size in bytes */
     53 	int	ptb_out;	/* non-zero if transfer is to IOP */
     54 };
     55 
     56 struct ioppt {
     57 	void	*pt_msg;	/* pointer to message buffer */
     58 	size_t	pt_msglen;	/* message buffer size in bytes */
     59 	void	*pt_reply;	/* pointer to reply buffer */
     60 	size_t	pt_replylen;	/* reply buffer size in bytes */
     61 	int	pt_timo;	/* completion timeout in ms */
     62 	int	pt_nbufs;	/* number of transfers */
     63 	struct	ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */
     64 };
     65 
     66 #define	IOPIOCPT	_IOWR('u', 0, struct ioppt)
     67 #define	IOPIOCGLCT	_IOWR('u', 1, struct iovec)
     68 #define	IOPIOCGSTATUS	_IOWR('u', 2, struct iovec)
     69 #define	IOPIOCRECONFIG	_IO('u', 3)
     70 #define	IOPIOCGTIDMAP	_IOWR('u', 4, struct iovec)
     71 
     72 #endif	/* !_I2O_IOPIO_H_ */
     73