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Commit | Line | Data |
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1da177e4 LT |
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 |