1/* $NetBSD: dmover_io.h,v 1.4 2017/10/28 06:27:32 riastradh Exp $ */
2
3/*
4 * Copyright (c) 2002, 2003 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#ifndef _DMOVER_DMOVER_IO_H_
39#define _DMOVER_DMOVER_IO_H_
40
41#include <sys/types.h>
42#include <sys/ioccom.h>
43#include <sys/uio.h>
44
45typedef struct {
46 struct iovec *dmbuf_iov;
47 u_int dmbuf_iovcnt;
48} dmio_buffer;
49
50/*
51 * dmio_usrreq:
52 *
53 * Request structure passed from user-space.
54 */
55struct dmio_usrreq {
56 /* Output buffer. */
57 dmio_buffer req_outbuf;
58
59 /*
60 * General purpose immediate value. Can be used as an
61 * input, output, or both, depending on the function.
62 * The output is transmitted via the usrresp structure.
63 */
64 uint8_t req_immediate[8];
65
66 /* Input buffer. */
67 dmio_buffer *req_inbuf;
68
69 uint32_t req_id; /* request ID; passed in response */
70};
71
72/*
73 * dmio_usrresp:
74 *
75 * Response structure passed to user-space.
76 */
77struct dmio_usrresp {
78 uint32_t resp_id; /* request ID */
79 int resp_error; /* error, 0 if success */
80 uint8_t resp_immediate[8];
81};
82
83/*
84 * DMIO_SETFUNC:
85 *
86 * Ioctl to set the function type for the session.
87 */
88#define DMIO_SETFUNC _IOW('D', 0, struct dmio_setfunc)
89
90#define DMIO_MAX_FUNCNAME 64
91struct dmio_setfunc {
92 char dsf_name[DMIO_MAX_FUNCNAME];
93};
94
95#endif /* _DMOVER_DMOVER_IO_H_ */
96