xref: /dragonfly/sys/dev/raid/mly/mlyio.h (revision 36a3d1d6)
1 /*-
2  * Copyright (c) 2001 Michael Smith
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  *	$FreeBSD: src/sys/dev/mly/mlyio.h,v 1.1.2.1 2001/03/05 20:17:24 msmith Exp $
27  *	$DragonFly: src/sys/dev/raid/mly/mlyio.h,v 1.3 2008/01/21 02:27:37 pavalos Exp $
28  */
29 
30 #include <sys/ioccom.h>
31 
32 /********************************************************************************
33  * Control structures exchanged through the GAM interface with userland
34  * management tools.
35  *
36  * The member naming here is consistent with the Linux driver, with which this
37  * interface is basically compatible.
38  */
39 struct mly_user_command
40 {
41     unsigned char		ControllerNumber;
42     union mly_command_packet	CommandMailbox;
43     int				DataTransferLength;
44     int				RequestSenseLength;
45     void			*DataTransferBuffer;
46     void			*RequestSenseBuffer;
47     int				CommandStatus;		/* not in the Linux structure */
48 };
49 
50 #define MLYIO_COMMAND	_IOWR('M', 200, struct mly_user_command)
51 
52 struct mly_user_health
53 {
54     unsigned char	ControllerNumber;
55     void		*HealthStatusBuffer;
56 };
57 
58 #define MLYIO_HEALTH	_IOW('M', 201, struct mly_user_health)
59 
60 /*
61  * Command queue statistics
62  */
63 
64 #define MLYQ_FREE	0
65 #define MLYQ_BUSY	1
66 #define MLYQ_COMPLETE	2
67 #define MLYQ_COUNT	3
68 
69 struct mly_qstat
70 {
71     u_int32_t	q_length;
72     u_int32_t	q_max;
73 };
74