xref: /dragonfly/sys/dev/raid/twe/tweio.h (revision 9f3fc534)
1 /*-
2  * Copyright (c) 2000 Michael Smith
3  * Copyright (c) 2003 Paul Saab
4  * Copyright (c) 2003 Vinod Kashyap
5  * Copyright (c) 2000 BSDi
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	$FreeBSD: src/sys/dev/twe/tweio.h,v 1.1.2.4 2004/04/07 22:18:01 vkashyap Exp $
30  *	$DragonFly: src/sys/dev/raid/twe/tweio.h,v 1.4 2005/08/22 21:16:20 hmp Exp $
31  */
32 
33 #include <sys/ioccom.h>
34 
35 /*
36  * User-space command
37  *
38  * Note that the command's scatter/gather list will be computed by the
39  * driver, and cannot be filled in by the consumer.
40  */
41 struct twe_usercommand {
42     TWE_Command	tu_command;	/* command ready for the controller */
43     void	*tu_data;	/* pointer to data in userspace */
44     size_t	tu_size;	/* userspace data length */
45 };
46 
47 #define TWEIO_COMMAND		_IOWR('T', 100, struct twe_usercommand)
48 
49 /*
50  * Command queue statistics
51  */
52 #define TWEQ_FREE	0
53 #define TWEQ_BIO	1
54 #define TWEQ_READY	2
55 #define TWEQ_BUSY	3
56 #define TWEQ_COMPLETE	4
57 #define TWEQ_COUNT	5	/* total number of queues */
58 
59 struct twe_qstat {
60     u_int32_t	q_length;
61     u_int32_t	q_max;
62     u_int32_t	q_min;
63 };
64 
65 /*
66  * Statistics request
67  */
68 union twe_statrequest {
69     u_int32_t		ts_item;
70     struct twe_qstat	ts_qstat;
71 };
72 
73 #define TWEIO_STATS		_IOWR('T', 101, union twe_statrequest)
74 
75 /*
76  * AEN listen
77  */
78 #define TWEIO_AEN_POLL		_IOR('T', 102, u_int16_t)
79 #define TWEIO_AEN_WAIT		_IOR('T', 103, u_int16_t)
80 
81 /*
82  * Controller parameter access
83  */
84 struct twe_paramcommand {
85     u_int16_t	tp_table_id;
86     u_int8_t	tp_param_id;
87     void	*tp_data;
88     u_int8_t	tp_size;
89 };
90 
91 #define TWEIO_SET_PARAM		_IOW ('T', 104, struct twe_paramcommand)
92 #define TWEIO_GET_PARAM		_IOW ('T', 105, struct twe_paramcommand)
93 
94 /*
95  * Request a controller soft-reset
96  */
97 #define TWEIO_RESET		_IO  ('T', 106)
98 
99 /*
100  * Request a drive addition or deletion
101  */
102 struct twe_drivecommand {
103     int		td_unit;
104 };
105 
106 #define TWEIO_ADD_UNIT		_IOW ('U', 107, int)
107 #define TWEIO_DEL_UNIT		_IOW ('U', 108, int)
108