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_chsc_char { 41 u64 res; 42 u64 : 20; 43 u32 secm : 1; /* bit 84 */ 44 u32 : 1; 45 u32 scmc : 1; /* bit 86 */ 46 u32 : 20; 47 u32 scssc : 1; /* bit 107 */ 48 u32 scsscf : 1; /* bit 108 */ 49 u32 : 19; 50 }__attribute__((packed)); 51 52 extern struct css_chsc_char css_chsc_characteristics; 53 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 }; 60 extern int chsc_get_ssd_info(struct subchannel_id schid, 61 struct chsc_ssd_info *ssd); 62 extern int chsc_determine_css_characteristics(void); 63 extern int chsc_alloc_sei_area(void); 64 extern void chsc_free_sei_area(void); 65 66 extern int chsc_enable_facility(int); 67 struct channel_subsystem; 68 extern int chsc_secm(struct channel_subsystem *, int); 69 int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page); 70 71 int chsc_chp_vary(struct chp_id chpid, int on); 72 int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, 73 int c, int m, 74 struct chsc_response_struct *resp); 75 int chsc_determine_base_channel_path_desc(struct chp_id chpid, 76 struct channel_path_desc *desc); 77 void chsc_chp_online(struct chp_id chpid); 78 void chsc_chp_offline(struct chp_id chpid); 79 int chsc_get_channel_measurement_chars(struct channel_path *chp); 80 81 int chsc_error_from_response(int response); 82 83 #endif 84