arch/s390/include/asm/chsc.h

   1 /*
   2  * ioctl interface for /dev/chsc
   3  *
   4  * Copyright 2008 IBM Corp.
   5  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
   6  */
   7
   8 #ifndef _ASM_CHSC_H
   9 #define _ASM_CHSC_H
  10
  11 #include <linux/types.h>
  12 #include <asm/chpid.h>
  13 #include <asm/schid.h>
  14
  15 struct chsc_async_header {
  16         __u16 length;
  17         __u16 code;
  18         __u32 cmd_dependend;
  19         __u32 key : 4;
  20         __u32 : 28;
  21         struct subchannel_id sid;
  22 } __attribute__ ((packed));
  23
  24 struct chsc_async_area {
  25         struct chsc_async_header header;
  26         __u8 data[PAGE_SIZE - 16 /* size of chsc_async_header */];
  27 } __attribute__ ((packed));
  28
  29
  30 struct chsc_response_struct {
  31         __u16 length;
  32         __u16 code;
  33         __u32 parms;
  34         __u8 data[PAGE_SIZE - 8];
  35 } __attribute__ ((packed));
  36
  37 struct chsc_chp_cd {
  38         struct chp_id chpid;
  39         int m;
  40         int fmt;
  41         struct chsc_response_struct cpcb;
  42 };
  43
  44 struct chsc_cu_cd {
  45         __u16 cun;
  46         __u8 cssid;
  47         int m;
  48         int fmt;
  49         struct chsc_response_struct cucb;
  50 };
  51
  52 struct chsc_sch_cud {
  53         struct subchannel_id schid;
  54         int fmt;
  55         struct chsc_response_struct scub;
  56 };
  57
  58 struct conf_id {
  59         int m;
  60         __u8 cssid;
  61         __u8 ssid;
  62 };
  63
  64 struct chsc_conf_info {
  65         struct conf_id id;
  66         int fmt;
  67         struct chsc_response_struct scid;
  68 };
  69
  70 struct ccl_parm_chpid {
  71         int m;
  72         struct chp_id chp;
  73 };
  74
  75 struct ccl_parm_cssids {
  76         __u8 f_cssid;
  77         __u8 l_cssid;
  78 };
  79
  80 struct chsc_comp_list {
  81         struct {
  82                 enum {
  83                         CCL_CU_ON_CHP = 1,
  84                         CCL_CHP_TYPE_CAP = 2,
  85                         CCL_CSS_IMG = 4,
  86                         CCL_CSS_IMG_CONF_CHAR = 5,
  87                         CCL_IOP_CHP = 6,
  88                 } ctype;
  89                 int fmt;
  90                 struct ccl_parm_chpid chpid;
  91                 struct ccl_parm_cssids cssids;
  92         } req;
  93         struct chsc_response_struct sccl;
  94 };
  95
  96 struct chsc_dcal {
  97         struct {
  98                 enum {
  99                         DCAL_CSS_IID_PN = 4,
 100                 } atype;
 101                 __u32 list_parm[2];
 102                 int fmt;
 103         } req;
 104         struct chsc_response_struct sdcal;
 105 };
 106
 107 struct chsc_cpd_info {
 108         struct chp_id chpid;
 109         int m;
 110         int fmt;
 111         int rfmt;
 112         int c;
 113         struct chsc_response_struct chpdb;
 114 };
 115
 116 #define CHSC_IOCTL_MAGIC 'c'
 117
 118 #define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
 119 #define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
 120                                     struct chsc_chp_cd)
 121 #define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
 122 #define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
 123 #define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
 124 #define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
 125 #define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
 126 #define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
 127
 128 #ifdef __KERNEL__
 129
 130 struct css_general_char {
 131         u64 : 12;
 132         u32 dynio : 1;   /* bit 12 */
 133         u32 : 28;
 134         u32 aif : 1;     /* bit 41 */
 135         u32 : 3;
 136         u32 mcss : 1;    /* bit 45 */
 137         u32 fcs : 1;     /* bit 46 */
 138         u32 : 1;
 139         u32 ext_mb : 1;  /* bit 48 */
 140         u32 : 7;
 141         u32 aif_tdd : 1; /* bit 56 */
 142         u32 : 1;
 143         u32 qebsm : 1;   /* bit 58 */
 144         u32 : 8;
 145         u32 aif_osa : 1; /* bit 67 */
 146         u32 : 14;
 147         u32 cib : 1;     /* bit 82 */
 148         u32 : 5;
 149         u32 fcx : 1;     /* bit 88 */
 150         u32 : 7;
 151 }__attribute__((packed));
 152
 153 extern struct css_general_char css_general_characteristics;
 154
 155 #endif /* __KERNEL__ */
 156 #endif