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#ifndef S390_CHSC_H
#define S390_CHSC_H
#include <linux/types.h>
#include <linux/device.h>
#include <asm/chpid.h>
#define CHSC_SDA_OC_MSS 0x2
struct chsc_header {
u16 length;
u16 code;
} __attribute__ ((packed));
#define NR_MEASUREMENT_CHARS 5
struct cmg_chars {
u32 values[NR_MEASUREMENT_CHARS];
} __attribute__ ((packed));
#define NR_MEASUREMENT_ENTRIES 8
struct cmg_entry {
u32 values[NR_MEASUREMENT_ENTRIES];
} __attribute__ ((packed));
struct channel_path_desc {
u8 flags;
u8 lsn;
u8 desc;
u8 chpid;
u8 swla;
u8 zeroes;
u8 chla;
u8 chpp;
} __attribute__ ((packed));
struct channel_path;
extern int css_get_ssd_info(struct subchannel *);
extern void chsc_process_crw(void);
struct css_general_char {
u64 : 41;
u32 aif : 1; /* bit 41 */
u32 : 3;
u32 mcss : 1; /* bit 45 */
u32 : 2;
u32 ext_mb : 1; /* bit 48 */
u32 : 7;
u32 aif_tdd : 1; /* bit 56 */
u32 : 1;
u32 qebsm : 1; /* bit 58 */
u32 : 8;
u32 aif_osa : 1; /* bit 67 */
u32 : 28;
}__attribute__((packed));
struct css_chsc_char {
u64 res;
u64 : 20;
u32 secm : 1; /* bit 84 */
u32 : 1;
u32 scmc : 1; /* bit 86 */
u32 : 20;
u32 scssc : 1; /* bit 107 */
u32 scsscf : 1; /* bit 108 */
u32 : 19;
}__attribute__((packed));
extern struct css_general_char css_general_characteristics;
extern struct css_chsc_char css_chsc_characteristics;
extern int chsc_determine_css_characteristics(void);
extern int css_characteristics_avail;
extern int chsc_enable_facility(int);
struct channel_subsystem;
extern int chsc_secm(struct channel_subsystem *, int);
int chsc_chp_vary(struct chp_id chpid, int on);
int chsc_determine_channel_path_description(struct chp_id chpid,
struct channel_path_desc *desc);
void chsc_chp_online(struct chp_id chpid);
void chsc_chp_offline(struct chp_id chpid);
int chsc_get_channel_measurement_chars(struct channel_path *chp);
#endif
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