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 12struct chsc_header { 13 u16 length; 14 u16 code; 15} __attribute__ ((packed)); 16 17#define NR_MEASUREMENT_CHARS 5 18struct cmg_chars { 19 u32 values[NR_MEASUREMENT_CHARS]; 20} __attribute__ ((packed)); 21 22#define NR_MEASUREMENT_ENTRIES 8 23struct cmg_entry { 24 u32 values[NR_MEASUREMENT_ENTRIES]; 25} __attribute__ ((packed)); 26 27struct 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 38struct channel_path; 39 40struct 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 52extern struct css_chsc_char css_chsc_characteristics; 53 54struct chsc_ssd_info { 55 u8 path_mask; 56 u8 fla_valid_mask; 57 struct chp_id chpid[8]; 58 u16 fla[8]; 59}; 60extern int chsc_get_ssd_info(struct subchannel_id schid, 61 struct chsc_ssd_info *ssd); 62extern int chsc_determine_css_characteristics(void); 63extern int chsc_alloc_sei_area(void); 64extern void chsc_free_sei_area(void); 65 66extern int chsc_enable_facility(int); 67struct channel_subsystem; 68extern int chsc_secm(struct channel_subsystem *, int); 69int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page); 70 71int chsc_chp_vary(struct chp_id chpid, int on); 72int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt, 73 int c, int m, 74 struct chsc_response_struct *resp); 75int chsc_determine_base_channel_path_desc(struct chp_id chpid, 76 struct channel_path_desc *desc); 77void chsc_chp_online(struct chp_id chpid); 78void chsc_chp_offline(struct chp_id chpid); 79int chsc_get_channel_measurement_chars(struct channel_path *chp); 80 81int chsc_error_from_response(int response); 82 83int chsc_siosl(struct subchannel_id schid); 84 85#endif 86