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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef S390_CHSC_H
2#define S390_CHSC_H
3
4#include <linux/types.h>
5#include <linux/device.h>
6#include <asm/chpid.h>
7#include <asm/chsc.h>
8#include <asm/schid.h>
9
10#define CHSC_SDA_OC_MSS 0x2
11
12struct chsc_header {
13 u16 length;
14 u16 code;
15} __attribute__ ((packed));
16
17#define NR_MEASUREMENT_CHARS 5
18struct cmg_chars {
19 u32 values[NR_MEASUREMENT_CHARS];
20} __attribute__ ((packed));
21
22#define NR_MEASUREMENT_ENTRIES 8
23struct cmg_entry {
24 u32 values[NR_MEASUREMENT_ENTRIES];
25} __attribute__ ((packed));
26
27struct channel_path_desc {
28 u8 flags;
29 u8 lsn;
30 u8 desc;
31 u8 chpid;
32 u8 swla;
33 u8 zeroes;
34 u8 chla;
35 u8 chpp;
36} __attribute__ ((packed));
37
38struct channel_path;
39
40struct css_general_char {
41 u64 : 12;
42 u32 dynio : 1; /* bit 12 */
43 u32 : 28;
44 u32 aif : 1; /* bit 41 */
45 u32 : 3;
46 u32 mcss : 1; /* bit 45 */
47 u32 fcs : 1; /* bit 46 */
48 u32 : 1;
49 u32 ext_mb : 1; /* bit 48 */
50 u32 : 7;
51 u32 aif_tdd : 1; /* bit 56 */
52 u32 : 1;
53 u32 qebsm : 1; /* bit 58 */
54 u32 : 8;
55 u32 aif_osa : 1; /* bit 67 */
56 u32 : 14;
57 u32 cib : 1; /* bit 82 */
58 u32 : 5;
59 u32 fcx : 1; /* bit 88 */
60 u32 : 7;
61}__attribute__((packed));
62
63struct css_chsc_char {
64 u64 res;
65 u64 : 20;
66 u32 secm : 1; /* bit 84 */
67 u32 : 1;
68 u32 scmc : 1; /* bit 86 */
69 u32 : 20;
70 u32 scssc : 1; /* bit 107 */
71 u32 scsscf : 1; /* bit 108 */
72 u32 : 19;
73}__attribute__((packed));
74
75extern struct css_general_char css_general_characteristics;
76extern struct css_chsc_char css_chsc_characteristics;
77
78struct chsc_ssd_info {
79 u8 path_mask;
80 u8 fla_valid_mask;
81 struct chp_id chpid[8];
82 u16 fla[8];
83};
84extern int chsc_get_ssd_info(struct subchannel_id schid,
85 struct chsc_ssd_info *ssd);
86extern int chsc_determine_css_characteristics(void);
87extern int chsc_alloc_sei_area(void);
88extern void chsc_free_sei_area(void);
89
90extern int chsc_enable_facility(int);
91struct channel_subsystem;
92extern int chsc_secm(struct channel_subsystem *, int);
93
94int chsc_chp_vary(struct chp_id chpid, int on);
95int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
96 int c, int m,
97 struct chsc_response_struct *resp);
98int chsc_determine_base_channel_path_desc(struct chp_id chpid,
99 struct channel_path_desc *desc);
100void chsc_chp_online(struct chp_id chpid);
101void chsc_chp_offline(struct chp_id chpid);
102int chsc_get_channel_measurement_chars(struct channel_path *chp);
103
104int chsc_error_from_response(int response);
105
106#endif