LXR linux/drivers/s390/cio/chsc.h

   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 "schid.h"
   8
   9#define CHSC_SDA_OC_MSS   0x2
  10
  11struct chsc_header {
  12        u16 length;
  13        u16 code;
  14} __attribute__ ((packed));
  15
  16#define NR_MEASUREMENT_CHARS 5
  17struct cmg_chars {
  18        u32 values[NR_MEASUREMENT_CHARS];
  19} __attribute__ ((packed));
  20
  21#define NR_MEASUREMENT_ENTRIES 8
  22struct cmg_entry {
  23        u32 values[NR_MEASUREMENT_ENTRIES];
  24} __attribute__ ((packed));
  25
  26struct channel_path_desc {
  27        u8 flags;
  28        u8 lsn;
  29        u8 desc;
  30        u8 chpid;
  31        u8 swla;
  32        u8 zeroes;
  33        u8 chla;
  34        u8 chpp;
  35} __attribute__ ((packed));
  36
  37struct channel_path;
  38
  39extern void chsc_process_crw(void);
  40
  41struct css_general_char {
  42        u64 : 41;
  43        u32 aif : 1;     /* bit 41 */
  44        u32 : 3;
  45        u32 mcss : 1;    /* bit 45 */
  46        u32 : 2;
  47        u32 ext_mb : 1;  /* bit 48 */
  48        u32 : 7;
  49        u32 aif_tdd : 1; /* bit 56 */
  50        u32 : 1;
  51        u32 qebsm : 1;   /* bit 58 */
  52        u32 : 8;
  53        u32 aif_osa : 1; /* bit 67 */
  54        u32 : 28;
  55}__attribute__((packed));
  56
  57struct css_chsc_char {
  58        u64 res;
  59        u64 : 20;
  60        u32 secm : 1; /* bit 84 */
  61        u32 : 1;
  62        u32 scmc : 1; /* bit 86 */
  63        u32 : 20;
  64        u32 scssc : 1;  /* bit 107 */
  65        u32 scsscf : 1; /* bit 108 */
  66        u32 : 19;
  67}__attribute__((packed));
  68
  69extern struct css_general_char css_general_characteristics;
  70extern struct css_chsc_char css_chsc_characteristics;
  71
  72struct chsc_ssd_info {
  73        u8 path_mask;
  74        u8 fla_valid_mask;
  75        struct chp_id chpid[8];
  76        u16 fla[8];
  77};
  78extern int chsc_get_ssd_info(struct subchannel_id schid,
  79                             struct chsc_ssd_info *ssd);
  80extern int chsc_determine_css_characteristics(void);
  81extern int css_characteristics_avail;
  82extern int chsc_alloc_sei_area(void);
  83extern void chsc_free_sei_area(void);
  84
  85extern int chsc_enable_facility(int);
  86struct channel_subsystem;
  87extern int chsc_secm(struct channel_subsystem *, int);
  88
  89int chsc_chp_vary(struct chp_id chpid, int on);
  90int chsc_determine_channel_path_description(struct chp_id chpid,
  91                                            struct channel_path_desc *desc);
  92void chsc_chp_online(struct chp_id chpid);
  93void chsc_chp_offline(struct chp_id chpid);
  94int chsc_get_channel_measurement_chars(struct channel_path *chp);
  95
  96#endif
  97