[deliverable/linux.git] / drivers / s390 / cio / chsc.h

#ifndef S390_CHSC_H
#define S390_CHSC_H

#include <linux/types.h>
#include <linux/device.h>
#include <asm/chpid.h>
#include <asm/chsc.h>
#include <asm/schid.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;

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_chsc_char css_chsc_characteristics;

struct chsc_ssd_info {
	u8 path_mask;
	u8 fla_valid_mask;
	struct chp_id chpid[8];
	u16 fla[8];
};

struct chsc_scpd {
	struct chsc_header request;
	u32:2;
	u32 m:1;
	u32 c:1;
	u32 fmt:4;
	u32 cssid:8;
	u32:4;
	u32 rfmt:4;
	u32 first_chpid:8;
	u32:24;
	u32 last_chpid:8;
	u32 zeroes1;
	struct chsc_header response;
	u8 data[PAGE_SIZE - 20];
} __attribute__ ((packed));


extern int chsc_get_ssd_info(struct subchannel_id schid,
			     struct chsc_ssd_info *ssd);
extern int chsc_determine_css_characteristics(void);
extern int chsc_init(void);
extern void chsc_init_cleanup(void);

extern int chsc_enable_facility(int);
struct channel_subsystem;
extern int chsc_secm(struct channel_subsystem *, int);
int __chsc_do_secm(struct channel_subsystem *css, int enable);

int chsc_chp_vary(struct chp_id chpid, int on);
int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
				     int c, int m, void *page);
int chsc_determine_base_channel_path_desc(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);

int chsc_error_from_response(int response);

int chsc_siosl(struct subchannel_id schid);

#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef S390_CHSC_H
	2	#define S390_CHSC_H
	3
f86635fa PO	4	#include <linux/types.h>
f86635fa PO	5	#include <linux/device.h>
e5854a58	6	#include <asm/chpid.h>
9d92a7e1 CH	7	#include <asm/chsc.h>
9d92a7e1 CH	8	#include <asm/schid.h>
f86635fa	9
fb6958a5 CH	10	#define CHSC_SDA_OC_MSS 0x2
fb6958a5 CH	11
1da177e4 LT	12	struct chsc_header {
	13	u16 length;
	14	u16 code;
0f008aa3	15	} __attribute__ ((packed));
1da177e4	16
495a5b45 CH	17	#define NR_MEASUREMENT_CHARS 5
	18	struct cmg_chars {
	19	u32 values[NR_MEASUREMENT_CHARS];
0f008aa3	20	} __attribute__ ((packed));
495a5b45 CH	21
	22	#define NR_MEASUREMENT_ENTRIES 8
	23	struct cmg_entry {
	24	u32 values[NR_MEASUREMENT_ENTRIES];
0f008aa3	25	} __attribute__ ((packed));
495a5b45	26
1da177e4 LT	27	struct 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;
0f008aa3	36	} __attribute__ ((packed));
1da177e4	37
e6b6e10a	38	struct channel_path;
1da177e4	39
1da177e4 LT	40	struct css_chsc_char {
1da177e4 LT	41	u64 res;
495a5b45 CH	42	u64 : 20;
	43	u32 secm : 1; /* bit 84 */
	44	u32 : 1;
	45	u32 scmc : 1; /* bit 86 */
	46	u32 : 20;
1da177e4 LT	47	u32 scssc : 1; /* bit 107 */
	48	u32 scsscf : 1; /* bit 108 */
	49	u32 : 19;
	50	}__attribute__((packed));
	51
1da177e4 LT	52	extern struct css_chsc_char css_chsc_characteristics;
1da177e4 LT	53
7ad6a249 PO	54	struct chsc_ssd_info {
	55	u8 path_mask;
	56	u8 fla_valid_mask;
	57	struct chp_id chpid[8];
	58	u16 fla[8];
	59	};
906c9768 SO	60
	61	struct chsc_scpd {
	62	struct chsc_header request;
	63	u32:2;
	64	u32 m:1;
	65	u32 c:1;
	66	u32 fmt:4;
	67	u32 cssid:8;
	68	u32:4;
	69	u32 rfmt:4;
	70	u32 first_chpid:8;
	71	u32:24;
	72	u32 last_chpid:8;
	73	u32 zeroes1;
	74	struct chsc_header response;
	75	u8 data[PAGE_SIZE - 20];
	76	} __attribute__ ((packed));
	77
	78
7ad6a249 PO	79	extern int chsc_get_ssd_info(struct subchannel_id schid,
7ad6a249 PO	80	struct chsc_ssd_info *ssd);
1da177e4	81	extern int chsc_determine_css_characteristics(void);
34aec07c SO	82	extern int chsc_init(void);
34aec07c SO	83	extern void chsc_init_cleanup(void);
1da177e4	84
fb6958a5	85	extern int chsc_enable_facility(int);
495a5b45 CH	86	struct channel_subsystem;
495a5b45 CH	87	extern int chsc_secm(struct channel_subsystem *, int);
34196f82	88	int __chsc_do_secm(struct channel_subsystem *css, int enable);
fb6958a5	89
e6b6e10a	90	int chsc_chp_vary(struct chp_id chpid, int on);
9d92a7e1	91	int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
906c9768	92	int c, int m, void *page);
9d92a7e1 CH	93	int chsc_determine_base_channel_path_desc(struct chp_id chpid,
9d92a7e1 CH	94	struct channel_path_desc *desc);
83b3370c	95	void chsc_chp_online(struct chp_id chpid);
e6b6e10a PO	96	void chsc_chp_offline(struct chp_id chpid);
e6b6e10a PO	97	int chsc_get_channel_measurement_chars(struct channel_path *chp);
a28c6944	98
dae39843 CH	99	int chsc_error_from_response(int response);
dae39843 CH	100
fd0457a6 ME	101	int chsc_siosl(struct subchannel_id schid);
fd0457a6 ME	102
1da177e4	103	#endif