1 #ifndef S390_CHSC_H 2 #define S390_CHSC_H 3 4 #include <linux/types.h> 5 #include <linux/device.h> 6 #include <asm/chpid.h> 7 #include <asm/chsc.h> 8 #include <asm/schid.h> 9 10 #define CHSC_SDA_OC_MSS 0x2 11 12 struct chsc_header { 13 u16 length; 14 u16 code; 15 } __attribute__ ((packed)); 16 17 #define NR_MEASUREMENT_CHARS 5 18 struct cmg_chars { 19 u32 values[NR_MEASUREMENT_CHARS]; 20 } __attribute__ ((packed)); 21 22 #define NR_MEASUREMENT_ENTRIES 8 23 struct cmg_entry { 24 u32 values[NR_MEASUREMENT_ENTRIES]; 25 } __attribute__ ((packed)); 26 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; 36 } __attribute__ ((packed)); 37 38 struct channel_path; 39 40 struct css_general_char { 41 u64 : 12; 42 u32 dynio : 1; /* bit 12 */ 43 u32 : 28; 44 u32 aif : 1; /* bit 41 */ 45 u32 : 3; 46 u32 mcss : 1; /* bit 45 */ 47 u32 fcs : 1; /* bit 46 */ 48 u32 : 1; 49 u32 ext_mb : 1; /* bit 48 */ 50 u32 : 7; 51 u32 aif_tdd : 1; /* bit 56 */ 52 u32 : 1; 53 u32 qebsm : 1; /* bit 58 */ 54 u32 : 8; 55 u32 aif_osa : 1; /* bit 67 */ 56 u32 : 14; 57 u32 cib : 1; /* bit 82 */ 58 u32 : 5; 59 u32 fcx : 1; /* bit 88 */ 60 u32 : 7; 61 }__attribute__((packed)); 62 63 struct css_chsc_char { 64 u64 res; 65 u64 : 20; 66 u32 secm : 1; /* bit 84 */ 67 u32 : 1; 68 u32 scmc : 1; /* bit 86 */ 69 u32 : 20; 70 u32 scssc : 1; /* bit 107 */ 71 u32 scsscf : 1; /* bit 108 */ 72 u32 : 19; 73 }__attribute__((packed)); 74 75 extern struct css_general_char css_general_characteristics; 76 extern struct css_chsc_char css_chsc_characteristics; 77 78 struct chsc_ssd_info { 79 u8 path_mask; 80 u8 fla_valid_mask; 81 struct chp_id chpid[8]; 82 u16 fla[8]; 83 }; 84 extern int chsc_get_ssd_info(struct subchannel_id schid, 85 struct chsc_ssd_info *ssd); 86 extern int chsc_determine_css_characteristics(void); 87 extern int chsc_alloc_sei_area(void); 88 extern void chsc_free_sei_area(void); 89 90 extern int chsc_enable_facility(int); 91 struct channel_subsystem; 92 extern int chsc_secm(struct channel_subsystem *, int); 93 94 int chsc_chp_vary(struct chp_id chpid, int on); 95 int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, 96 int c, int m, 97 struct chsc_response_struct *resp); 98 int chsc_determine_base_channel_path_desc(struct chp_id chpid, 99 struct channel_path_desc *desc); 100 void chsc_chp_online(struct chp_id chpid); 101 void chsc_chp_offline(struct chp_id chpid); 102 int chsc_get_channel_measurement_chars(struct channel_path *chp); 103 104 int chsc_error_from_response(int response); 105 106 #endif 107