drivers/s390/char/tape_3590.h

   1 /*
   2  *    tape device discipline for 3590 tapes.
   3  *
   4  *    Copyright IBM Corp. 2001, 2006
   5  *    Author(s): Stefan Bader <shbader@de.ibm.com>
   6  *               Michael Holzheu <holzheu@de.ibm.com>
   7  *               Martin Schwidefsky <schwidefsky@de.ibm.com>
   8  */
   9
  10 #ifndef _TAPE_3590_H
  11 #define _TAPE_3590_H
  12
  13 #define MEDIUM_SENSE    0xc2
  14 #define READ_PREVIOUS   0x0a
  15 #define MODE_SENSE      0xcf
  16 #define PERFORM_SS_FUNC 0x77
  17 #define READ_SS_DATA    0x3e
  18
  19 #define PREP_RD_SS_DATA 0x18
  20 #define RD_ATTMSG       0x3
  21
  22 #define SENSE_BRA_PER  0
  23 #define SENSE_BRA_CONT 1
  24 #define SENSE_BRA_RE   2
  25 #define SENSE_BRA_DRE  3
  26
  27 #define SENSE_FMT_LIBRARY       0x23
  28 #define SENSE_FMT_UNSOLICITED   0x40
  29 #define SENSE_FMT_COMMAND_REJ   0x41
  30 #define SENSE_FMT_COMMAND_EXEC0 0x50
  31 #define SENSE_FMT_COMMAND_EXEC1 0x51
  32 #define SENSE_FMT_EVENT0        0x60
  33 #define SENSE_FMT_EVENT1        0x61
  34 #define SENSE_FMT_MIM           0x70
  35 #define SENSE_FMT_SIM           0x71
  36
  37 #define MSENSE_UNASSOCIATED      0x00
  38 #define MSENSE_ASSOCIATED_MOUNT  0x01
  39 #define MSENSE_ASSOCIATED_UMOUNT 0x02
  40 #define MSENSE_CRYPT_MASK        0x00000010
  41
  42 #define TAPE_3590_MAX_MSG        0xb0
  43
  44 /* Datatypes */
  45
  46 struct tape_3590_disc_data {
  47         struct tape390_crypt_info crypt_info;
  48         int read_back_op;
  49 };
  50
  51 #define TAPE_3590_CRYPT_INFO(device) \
  52         ((struct tape_3590_disc_data*)(device->discdata))->crypt_info
  53 #define TAPE_3590_READ_BACK_OP(device) \
  54         ((struct tape_3590_disc_data*)(device->discdata))->read_back_op
  55
  56 struct tape_3590_sense {
  57
  58         unsigned int command_rej:1;
  59         unsigned int interv_req:1;
  60         unsigned int bus_out_check:1;
  61         unsigned int eq_check:1;
  62         unsigned int data_check:1;
  63         unsigned int overrun:1;
  64         unsigned int def_unit_check:1;
  65         unsigned int assgnd_elsew:1;
  66
  67         unsigned int locate_fail:1;
  68         unsigned int inst_online:1;
  69         unsigned int reserved:1;
  70         unsigned int blk_seq_err:1;
  71         unsigned int begin_part:1;
  72         unsigned int wr_mode:1;
  73         unsigned int wr_prot:1;
  74         unsigned int not_cap:1;
  75
  76         unsigned int bra:2;
  77         unsigned int lc:3;
  78         unsigned int vlf_active:1;
  79         unsigned int stm:1;
  80         unsigned int med_pos:1;
  81
  82         unsigned int rac:8;
  83
  84         unsigned int rc_rqc:16;
  85
  86         unsigned int mc:8;
  87
  88         unsigned int sense_fmt:8;
  89
  90         union {
  91                 struct {
  92                         unsigned int emc:4;
  93                         unsigned int smc:4;
  94                         unsigned int sev:2;
  95                         unsigned int reserved:6;
  96                         unsigned int md:8;
  97                         unsigned int refcode:8;
  98                         unsigned int mid:16;
  99                         unsigned int mp:16;
 100                         unsigned char volid[6];
 101                         unsigned int fid:8;
 102                 } f70;
 103                 struct {
 104                         unsigned int emc:4;
 105                         unsigned int smc:4;
 106                         unsigned int sev:2;
 107                         unsigned int reserved1:5;
 108                         unsigned int mdf:1;
 109                         unsigned char md[3];
 110                         unsigned int simid:8;
 111                         unsigned int uid:16;
 112                         unsigned int refcode1:16;
 113                         unsigned int refcode2:16;
 114                         unsigned int refcode3:16;
 115                         unsigned int reserved2:8;
 116                 } f71;
 117                 unsigned char data[14];
 118         } fmt;
 119         unsigned char pad[10];
 120
 121 } __attribute__ ((packed));
 122
 123 struct tape_3590_med_sense {
 124         unsigned int macst:4;
 125         unsigned int masst:4;
 126         char pad1[7];
 127         unsigned int flags;
 128         char pad2[116];
 129 } __attribute__ ((packed));
 130
 131 struct tape_3590_rdc_data {
 132         char data[64];
 133 } __attribute__ ((packed));
 134
 135 /* Datastructures for 3592 encryption support */
 136
 137 struct tape3592_kekl {
 138         __u8 flags;
 139         char label[64];
 140 } __attribute__ ((packed));
 141
 142 struct tape3592_kekl_pair {
 143         __u8 count;
 144         struct tape3592_kekl kekl[2];
 145 } __attribute__ ((packed));
 146
 147 struct tape3592_kekl_query_data {
 148         __u16 len;
 149         __u8  fmt;
 150         __u8  mc;
 151         __u32 id;
 152         __u8  flags;
 153         struct tape3592_kekl_pair kekls;
 154         char reserved[116];
 155 } __attribute__ ((packed));
 156
 157 struct tape3592_kekl_query_order {
 158         __u8 code;
 159         __u8 flags;
 160         char reserved1[2];
 161         __u8 max_count;
 162         char reserved2[35];
 163 } __attribute__ ((packed));
 164
 165 struct tape3592_kekl_set_order {
 166         __u8 code;
 167         __u8 flags;
 168         char reserved1[2];
 169         __u8 op;
 170         struct tape3592_kekl_pair kekls;
 171         char reserved2[120];
 172 } __attribute__ ((packed));
 173
 174 #endif /* _TAPE_3590_H */