xref: /openbmc/linux/arch/s390/include/uapi/asm/chsc.h (revision ccaabeea)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  * ioctl interface for /dev/chsc
4  *
5  * Copyright IBM Corp. 2008, 2012
6  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
7  */
8 
9 #ifndef _ASM_CHSC_H
10 #define _ASM_CHSC_H
11 
12 #include <linux/types.h>
13 #include <linux/ioctl.h>
14 #include <asm/chpid.h>
15 #include <asm/schid.h>
16 
17 #define CHSC_SIZE 0x1000
18 
19 struct chsc_async_header {
20 	__u16 length;
21 	__u16 code;
22 	__u32 cmd_dependend;
23 	__u32 key : 4;
24 	__u32 : 28;
25 	struct subchannel_id sid;
26 };
27 
28 struct chsc_async_area {
29 	struct chsc_async_header header;
30 	__u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)];
31 };
32 
33 struct chsc_header {
34 	__u16 length;
35 	__u16 code;
36 };
37 
38 struct chsc_sync_area {
39 	struct chsc_header header;
40 	__u8 data[CHSC_SIZE - sizeof(struct chsc_header)];
41 };
42 
43 struct chsc_response_struct {
44 	__u16 length;
45 	__u16 code;
46 	__u32 parms;
47 	__u8 data[CHSC_SIZE - 2 * sizeof(__u16) - sizeof(__u32)];
48 };
49 
50 struct chsc_chp_cd {
51 	struct chp_id chpid;
52 	int m;
53 	int fmt;
54 	struct chsc_response_struct cpcb;
55 };
56 
57 struct chsc_cu_cd {
58 	__u16 cun;
59 	__u8 cssid;
60 	int m;
61 	int fmt;
62 	struct chsc_response_struct cucb;
63 };
64 
65 struct chsc_sch_cud {
66 	struct subchannel_id schid;
67 	int fmt;
68 	struct chsc_response_struct scub;
69 };
70 
71 struct conf_id {
72 	int m;
73 	__u8 cssid;
74 	__u8 ssid;
75 };
76 
77 struct chsc_conf_info {
78 	struct conf_id id;
79 	int fmt;
80 	struct chsc_response_struct scid;
81 };
82 
83 struct ccl_parm_chpid {
84 	int m;
85 	struct chp_id chp;
86 };
87 
88 struct ccl_parm_cssids {
89 	__u8 f_cssid;
90 	__u8 l_cssid;
91 };
92 
93 struct chsc_comp_list {
94 	struct {
95 		enum {
96 			CCL_CU_ON_CHP = 1,
97 			CCL_CHP_TYPE_CAP = 2,
98 			CCL_CSS_IMG = 4,
99 			CCL_CSS_IMG_CONF_CHAR = 5,
100 			CCL_IOP_CHP = 6,
101 		} ctype;
102 		int fmt;
103 		struct ccl_parm_chpid chpid;
104 		struct ccl_parm_cssids cssids;
105 	} req;
106 	struct chsc_response_struct sccl;
107 };
108 
109 struct chsc_dcal {
110 	struct {
111 		enum {
112 			DCAL_CSS_IID_PN = 4,
113 		} atype;
114 		__u32 list_parm[2];
115 		int fmt;
116 	} req;
117 	struct chsc_response_struct sdcal;
118 };
119 
120 struct chsc_cpd_info {
121 	struct chp_id chpid;
122 	int m;
123 	int fmt;
124 	int rfmt;
125 	int c;
126 	struct chsc_response_struct chpdb;
127 };
128 
129 #define CHSC_IOCTL_MAGIC 'c'
130 
131 #define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
132 #define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
133 				    struct chsc_chp_cd)
134 #define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
135 #define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
136 #define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
137 #define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
138 #define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
139 #define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
140 #define CHSC_START_SYNC _IOWR(CHSC_IOCTL_MAGIC, 0x89, struct chsc_sync_area)
141 #define CHSC_ON_CLOSE_SET _IOWR(CHSC_IOCTL_MAGIC, 0x8a, struct chsc_async_area)
142 #define CHSC_ON_CLOSE_REMOVE _IO(CHSC_IOCTL_MAGIC, 0x8b)
143 
144 #endif
145