| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef S390_CHSC_H |
| 2 | #define S390_CHSC_H |
| 3 | |
| 4 | #define NR_CHPIDS 256 |
| 5 | |
| 6 | #define CHSC_SEI_ACC_CHPID 1 |
| 7 | #define CHSC_SEI_ACC_LINKADDR 2 |
| 8 | #define CHSC_SEI_ACC_FULLLINKADDR 3 |
| 9 | |
| 10 | struct chsc_header { |
| 11 | u16 length; |
| 12 | u16 code; |
| 13 | }; |
| 14 | |
| 15 | struct channel_path_desc { |
| 16 | u8 flags; |
| 17 | u8 lsn; |
| 18 | u8 desc; |
| 19 | u8 chpid; |
| 20 | u8 swla; |
| 21 | u8 zeroes; |
| 22 | u8 chla; |
| 23 | u8 chpp; |
| 24 | }; |
| 25 | |
| 26 | struct channel_path { |
| 27 | int id; |
| 28 | int state; |
| 29 | struct channel_path_desc desc; |
| 30 | struct device dev; |
| 31 | }; |
| 32 | |
| 33 | extern void s390_process_css( void ); |
| 34 | extern void chsc_validate_chpids(struct subchannel *); |
| 35 | extern void chpid_is_actually_online(int); |
| 36 | |
| 37 | struct css_general_char { |
| 38 | u64 : 41; |
| 39 | u32 aif : 1; /* bit 41 */ |
| 40 | u32 : 3; |
| 41 | u32 mcss : 1; /* bit 45 */ |
| 42 | u32 : 2; |
| 43 | u32 ext_mb : 1; /* bit 48 */ |
| 44 | u32 : 7; |
| 45 | u32 aif_tdd : 1; /* bit 56 */ |
| 46 | u32 : 10; |
| 47 | u32 aif_osa : 1; /* bit 67 */ |
| 48 | u32 : 28; |
| 49 | }__attribute__((packed)); |
| 50 | |
| 51 | struct css_chsc_char { |
| 52 | u64 res; |
| 53 | u64 : 43; |
| 54 | u32 scssc : 1; /* bit 107 */ |
| 55 | u32 scsscf : 1; /* bit 108 */ |
| 56 | u32 : 19; |
| 57 | }__attribute__((packed)); |
| 58 | |
| 59 | extern struct css_general_char css_general_characteristics; |
| 60 | extern struct css_chsc_char css_chsc_characteristics; |
| 61 | |
| 62 | extern int chsc_determine_css_characteristics(void); |
| 63 | extern int css_characteristics_avail; |
| 64 | |
| 65 | extern void *chsc_get_chp_desc(struct subchannel*, int); |
| 66 | #endif |