kernel-ark/drivers/s390/cio/chsc.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

67 lines
1.2 KiB
C

#ifndef S390_CHSC_H
#define S390_CHSC_H
#define NR_CHPIDS 256
#define CHSC_SEI_ACC_CHPID 1
#define CHSC_SEI_ACC_LINKADDR 2
#define CHSC_SEI_ACC_FULLLINKADDR 3
struct chsc_header {
u16 length;
u16 code;
};
struct channel_path_desc {
u8 flags;
u8 lsn;
u8 desc;
u8 chpid;
u8 swla;
u8 zeroes;
u8 chla;
u8 chpp;
};
struct channel_path {
int id;
int state;
struct channel_path_desc desc;
struct device dev;
};
extern void s390_process_css( void );
extern void chsc_validate_chpids(struct subchannel *);
extern void chpid_is_actually_online(int);
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 : 10;
u32 aif_osa : 1; /* bit 67 */
u32 : 28;
}__attribute__((packed));
struct css_chsc_char {
u64 res;
u64 : 43;
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 void *chsc_get_chp_desc(struct subchannel*, int);
#endif