iopio.h revision 1.3 
1/*	$NetBSD: iopio.h,v 1.3 2006/08/27 20:32:44 christos 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#ifdef _KERNEL
51struct iop_tidmap {
52	u_short	it_tid;
53	u_short	it_flags;
54	char	it_dvname[sizeof(((struct device *)NULL)->dv_xname)];
55};
56#define	IT_CONFIGURED	0x02	/* target configured */
57#endif
58
59struct ioppt_buf {
60	void	*ptb_data;	/* pointer to buffer */
61	size_t	ptb_datalen;	/* buffer size in bytes */
62	int	ptb_out;	/* non-zero if transfer is to IOP */
63};
64
65struct ioppt {
66	void	*pt_msg;	/* pointer to message buffer */
67	size_t	pt_msglen;	/* message buffer size in bytes */
68	void	*pt_reply;	/* pointer to reply buffer */
69	size_t	pt_replylen;	/* reply buffer size in bytes */
70	int	pt_timo;	/* completion timeout in ms */
71	int	pt_nbufs;	/* number of transfers */
72	struct	ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */
73};
74
75#define	IOPIOCPT	_IOWR('u', 0, struct ioppt)
76#define	IOPIOCGLCT	_IOWR('u', 1, struct iovec)
77#define	IOPIOCGSTATUS	_IOWR('u', 2, struct iovec)
78#define	IOPIOCRECONFIG	_IO('u', 3)
79#define	IOPIOCGTIDMAP	_IOWR('u', 4, struct iovec)
80
81#endif	/* !_I2O_IOPIO_H_ */
82