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/* dat.h - aoetools type definitions and macros
* Copyright 2009, CORAID, Inc., and licensed under GPL v.2.
*/
#define nil NULL
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
typedef unsigned char uchar;
typedef struct Aoehdr Aoehdr;
typedef struct Ata Ata;
typedef struct Conf Conf;
typedef struct Ataregs Ataregs;
/* use C99's stdint.h for fixed-width types
*
* There's no guarantee an unsigned short is 16-bits wide,
* but uint16_t is always correct.
*/
typedef uint64_t vlong;
typedef uint32_t u32;
typedef uint16_t u16;
struct Ataregs {
vlong lba;
uchar cmd;
uchar status;
uchar err;
uchar feature;
uchar sectors;
};
struct Aoehdr {
uchar dst[6];
uchar src[6];
u16 type;
uchar flags;
uchar error;
u16 maj;
uchar min;
uchar cmd;
uchar tag[4];
};
struct Ata {
Aoehdr h;
uchar aflag;
uchar err;
uchar sectors;
uchar cmd;
uchar lba[6];
uchar resvd[2];
uchar data[1024];
};
struct Conf {
Aoehdr h;
u16 bufcnt;
u16 firmware;
uchar scnt;
uchar vercmd;
u16 len;
uchar data[1024];
};
enum {
AOE_ETH_PROTO = 0x88a2,
AoEver = 1,
ATAcmd = 0, // command codes
Config,
Resp = 1<<3, // flags
Error = 1<<2,
BadCmd = 1,
BadArg,
DevUnavailable,
ConfigErr,
BadVersion,
Write = 1<<0,
Async = 1<<1,
Device = 1<<4,
Extend = 1<<6,
Qread = 0,
Qtest,
Qprefix,
Qset,
Qfset,
Nretries = 3,
ATAid_dev = 0xec, // ATA commands
ATAsmart = 0xb0,
ATAabrt = 0x4, // ATA error bits
SmartDataPut = 0x01,
SmartDataRet = 0x10,
};
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