4 #include <linux/types.h>
5 #include <linux/device.h>
6 #include <asm/css_chars.h>
11 #define CHSC_SDA_OC_MSS 0x2
16 } __attribute__ ((packed
));
18 #define NR_MEASUREMENT_CHARS 5
20 u32 values
[NR_MEASUREMENT_CHARS
];
21 } __attribute__ ((packed
));
23 #define NR_MEASUREMENT_ENTRIES 8
25 u32 values
[NR_MEASUREMENT_ENTRIES
];
26 } __attribute__ ((packed
));
28 struct channel_path_desc
{
37 } __attribute__ ((packed
));
39 struct channel_path_desc_fmt1
{
55 } __attribute__ ((packed
));
59 struct css_chsc_char
{
62 u32 secm
: 1; /* bit 84 */
64 u32 scmc
: 1; /* bit 86 */
66 u32 scssc
: 1; /* bit 107 */
67 u32 scsscf
: 1; /* bit 108 */
69 }__attribute__((packed
));
71 extern struct css_chsc_char css_chsc_characteristics
;
73 struct chsc_ssd_info
{
76 struct chp_id chpid
[8];
81 struct chsc_header request
;
93 struct chsc_header response
;
94 u8 data
[PAGE_SIZE
- 20];
95 } __attribute__ ((packed
));
98 extern int chsc_get_ssd_info(struct subchannel_id schid
,
99 struct chsc_ssd_info
*ssd
);
100 extern int chsc_determine_css_characteristics(void);
101 extern int chsc_init(void);
102 extern void chsc_init_cleanup(void);
104 extern int chsc_enable_facility(int);
105 struct channel_subsystem
;
106 extern int chsc_secm(struct channel_subsystem
*, int);
107 int __chsc_do_secm(struct channel_subsystem
*css
, int enable
);
109 int chsc_chp_vary(struct chp_id chpid
, int on
);
110 int chsc_determine_channel_path_desc(struct chp_id chpid
, int fmt
, int rfmt
,
111 int c
, int m
, void *page
);
112 int chsc_determine_base_channel_path_desc(struct chp_id chpid
,
113 struct channel_path_desc
*desc
);
114 int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid
,
115 struct channel_path_desc_fmt1
*desc
);
116 void chsc_chp_online(struct chp_id chpid
);
117 void chsc_chp_offline(struct chp_id chpid
);
118 int chsc_get_channel_measurement_chars(struct channel_path
*chp
);
120 int chsc_error_from_response(int response
);
122 int chsc_siosl(struct subchannel_id schid
);
124 /* Functions and definitions to query storage-class memory. */
137 struct chsc_scm_info
{
138 struct chsc_header request
;
142 struct chsc_header response
;
154 struct sale scmal
[248];
157 int chsc_scm_info(struct chsc_scm_info
*scm_area
, u64 token
);
159 #ifdef CONFIG_SCM_BUS
160 int scm_update_information(void);
161 int scm_process_availability_information(void);
162 #else /* CONFIG_SCM_BUS */
163 static inline int scm_update_information(void) { return 0; }
164 static inline int scm_process_availability_information(void) { return 0; }
165 #endif /* CONFIG_SCM_BUS */