summaryrefslogtreecommitdiffstats
path: root/arch/s390/include/uapi/asm/chsc.h
blob: 1c6a7f85a5819d5354acb38f91820be5767d789c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
/*
 * ioctl interface for /dev/chsc
 *
 * Copyright IBM Corp. 2008, 2012
 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
 */

#ifndef _ASM_CHSC_H
#define _ASM_CHSC_H

#include <linux/types.h>
#include <linux/ioctl.h>
#include <asm/chpid.h>
#include <asm/schid.h>

#define CHSC_SIZE 0x1000

struct chsc_async_header {
	__u16 length;
	__u16 code;
	__u32 cmd_dependend;
	__u32 key : 4;
	__u32 : 28;
	struct subchannel_id sid;
} __attribute__ ((packed));

struct chsc_async_area {
	struct chsc_async_header header;
	__u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)];
} __attribute__ ((packed));

struct chsc_response_struct {
	__u16 length;
	__u16 code;
	__u32 parms;
	__u8 data[CHSC_SIZE - 2 * sizeof(__u16) - sizeof(__u32)];
} __attribute__ ((packed));

struct chsc_chp_cd {
	struct chp_id chpid;
	int m;
	int fmt;
	struct chsc_response_struct cpcb;
};

struct chsc_cu_cd {
	__u16 cun;
	__u8 cssid;
	int m;
	int fmt;
	struct chsc_response_struct cucb;
};

struct chsc_sch_cud {
	struct subchannel_id schid;
	int fmt;
	struct chsc_response_struct scub;
};

struct conf_id {
	int m;
	__u8 cssid;
	__u8 ssid;
};

struct chsc_conf_info {
	struct conf_id id;
	int fmt;
	struct chsc_response_struct scid;
};

struct ccl_parm_chpid {
	int m;
	struct chp_id chp;
};

struct ccl_parm_cssids {
	__u8 f_cssid;
	__u8 l_cssid;
};

struct chsc_comp_list {
	struct {
		enum {
			CCL_CU_ON_CHP = 1,
			CCL_CHP_TYPE_CAP = 2,
			CCL_CSS_IMG = 4,
			CCL_CSS_IMG_CONF_CHAR = 5,
			CCL_IOP_CHP = 6,
		} ctype;
		int fmt;
		struct ccl_parm_chpid chpid;
		struct ccl_parm_cssids cssids;
	} req;
	struct chsc_response_struct sccl;
};

struct chsc_dcal {
	struct {
		enum {
			DCAL_CSS_IID_PN = 4,
		} atype;
		__u32 list_parm[2];
		int fmt;
	} req;
	struct chsc_response_struct sdcal;
};

struct chsc_cpd_info {
	struct chp_id chpid;
	int m;
	int fmt;
	int rfmt;
	int c;
	struct chsc_response_struct chpdb;
};

#define CHSC_IOCTL_MAGIC 'c'

#define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
#define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
				    struct chsc_chp_cd)
#define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
#define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
#define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
#define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)

#endif