VBLADE/vblade-master/dat.h

   1 /* dat.h: include file for vblade AoE target */
   2
   3 #define nil     ((void *)0)
   4 /*
   5  *      tunable variables
   6  */
   7
   8 enum {
   9         VBLADE_VERSION          = 24,
  10
  11         // Firmware version
  12         FWV                     = 0x4000 + VBLADE_VERSION,
  13 };
  14
  15 #undef major
  16 #undef minor
  17 #undef makedev
  18
  19 #define major(x)                ((x) >> 24 & 0xFF)
  20 #define minor(x)                ((x) & 0xffffff)
  21 #define makedev(x, y)   ((x) << 24 | (y))
  22
  23 typedef unsigned char uchar;
  24 //typedef unsigned short ushort;
  25 #ifdef __FreeBSD__
  26 typedef unsigned long ulong;
  27 #else
  28 //typedef unsigned long ulong;
  29 #endif
  30 typedef long long vlong;
  31
  32 typedef struct Aoehdr Aoehdr;
  33 typedef struct Ata Ata;
  34 typedef struct Conf Conf;
  35 typedef struct Ataregs Ataregs;
  36 typedef struct Mdir Mdir;
  37 typedef struct Aoemask Aoemask;
  38 typedef struct Aoesrr Aoesrr;
  39
  40 struct Ataregs
  41 {
  42         vlong   lba;
  43         uchar   cmd;
  44         uchar   status;
  45         uchar   err;
  46         uchar   feature;
  47         uchar   sectors;
  48 };
  49
  50 struct Aoehdr
  51 {
  52         uchar   dst[6];
  53         uchar   src[6];
  54         ushort  type;
  55         uchar   flags;
  56         uchar   error;
  57         ushort  maj;
  58         uchar   min;
  59         uchar   cmd;
  60         uchar   tag[4];
  61 };
  62
  63 struct Ata
  64 {
  65         Aoehdr  h;
  66         uchar   aflag;
  67         uchar   err;
  68         uchar   sectors;
  69         uchar   cmd;
  70         uchar   lba[6];
  71         uchar   resvd[2];
  72 };
  73
  74 struct Conf
  75 {
  76         Aoehdr  h;
  77         ushort  bufcnt;
  78         ushort  firmware;
  79         uchar   scnt;
  80         uchar   vercmd;
  81         ushort  len;
  82         uchar   data[1024];
  83 };
  84
  85 // mask directive
  86 struct Mdir {
  87         uchar res;
  88         uchar cmd;
  89         uchar mac[6];
  90 };
  91
  92 struct Aoemask {
  93         Aoehdr h;
  94         uchar res;
  95         uchar cmd;
  96         uchar merror;
  97         uchar nmacs;
  98 //      struct Mdir m[0];
  99 };
 100
 101 struct Aoesrr {
 102         Aoehdr h;
 103         uchar rcmd;
 104         uchar nmacs;
 105 //      uchar mac[6][nmacs];
 106 };
 107
 108 enum {
 109         AoEver = 1,
 110
 111         ATAcmd = 0,             // command codes
 112         Config,
 113         Mask,
 114         Resrel,
 115
 116         Resp = (1<<3),          // flags
 117         Error = (1<<2),
 118
 119         BadCmd = 1,
 120         BadArg,
 121         DevUnavailable,
 122         ConfigErr,
 123         BadVersion,
 124         Res,
 125
 126         Write = (1<<0),
 127         Async = (1<<1),
 128         Device = (1<<4),
 129         Extend = (1<<6),
 130
 131         Qread = 0,
 132         Qtest,
 133         Qprefix,
 134         Qset,
 135         Qfset,
 136
 137         Nretries = 3,
 138         Nconfig = 1024,
 139
 140         Bufcount = 16,
 141
 142         /* mask commands */
 143         Mread= 0,
 144         Medit,
 145
 146         /* mask directives */
 147         MDnop= 0,
 148         MDadd,
 149         MDdel,
 150
 151         /* mask errors */
 152         MEunspec= 1,
 153         MEbaddir,
 154         MEfull,
 155
 156         /* header sizes, including aoe hdr */
 157         Naoehdr= 24,
 158         Natahdr= Naoehdr + 12,
 159         Ncfghdr= Naoehdr + 8,
 160         Nmaskhdr= Naoehdr + 4,
 161         Nsrrhdr= Naoehdr + 2,
 162
 163         Nserial= 20,
 164 };
 165
 166 int     shelf, slot;
 167 ulong   aoetag;
 168 uchar   mac[6];
 169 int     bfd;            // block file descriptor
 170 int     sfd;            // socket file descriptor
 171 vlong   size;           // size of vblade
 172 vlong   offset;
 173 char    *progname;
 174 char    serial[Nserial+1];