1/*	$NetBSD: iopio.h,v 1.9 2022/04/17 21:24:53 andvar 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#include <sys/types.h>
36#include <sys/ioccom.h>
37
38#define	IOP_MAX_MSG_XFERS	3	/* Maximum transfer count per msg */
39#define	IOP_MAX_OUTBOUND	256	/* Maximum outbound queue depth */
40#define	IOP_MAX_INBOUND		256	/* Maximum inbound queue depth */
41#define	IOP_MF_RESERVE		4	/* Frames to reserve for ctl ops */
42#define	IOP_MAX_XFER		64*1024	/* Maximum transfer size */
43#define	IOP_MAX_MSG_SIZE	160	/* Maximum message frame size */
44#define	IOP_MIN_MSG_SIZE	128	/* Minimum size supported by IOP */
45
46struct iop_tidmap {
47	u_short	it_tid;
48	u_short	it_flags;
49	char	it_dvname[16];
50};
51#define	IT_CONFIGURED	0x02	/* target configured */
52
53struct ioppt_buf {
54	void	*ptb_data;	/* pointer to buffer */
55	size_t	ptb_datalen;	/* buffer size in bytes */
56	int	ptb_out;	/* non-zero if transfer is to IOP */
57};
58
59struct ioppt {
60	void	*pt_msg;	/* pointer to message buffer */
61	size_t	pt_msglen;	/* message buffer size in bytes */
62	void	*pt_reply;	/* pointer to reply buffer */
63	size_t	pt_replylen;	/* reply buffer size in bytes */
64	int	pt_timo;	/* completion timeout in ms */
65	int	pt_nbufs;	/* number of transfers */
66	struct	ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */
67};
68
69#define	IOPIOCPT	_IOWR('u', 0, struct ioppt)
70#define	IOPIOCGLCT	_IOWR('u', 1, struct iovec)
71#define	IOPIOCGSTATUS	_IOWR('u', 2, struct iovec)
72#define	IOPIOCRECONFIG	_IO('u', 3)
73#define	IOPIOCGTIDMAP	_IOWR('u', 4, struct iovec)
74
75#endif	/* !_I2O_IOPIO_H_ */