Subversion Repositories planix.SVN

/*
 * ATA-over-Ethernet (AoE) protocol
 */
enum {
        ACata,
        ACconfig,
};

enum {
        AQCread,
        AQCtest,
        AQCprefix,
        AQCset,
        AQCfset,
};

enum {
        AEcmd   = 1,
        AEarg,
        AEdev,
        AEcfg,
        AEver,
};

enum {
        Aoetype = 0x88a2,
        Aoesectsz = 512,                        /* standard sector size */
        Aoever  = 1,

        AFerr   = 1<<2,
        AFrsp   = 1<<3,

        AAFwrite= 1,
        AAFext  = 1<<6,
};

typedef struct {
        uchar   dst[Eaddrlen];
        uchar   src[Eaddrlen];
        uchar   type[2];
        uchar   verflag;
        uchar   error;
        uchar   major[2];
        uchar   minor;
        uchar   cmd;
        uchar   tag[4];
        uchar   payload[];
} Aoehdr;

#define AOEHDRSZ        offsetof(Aoehdr, payload[0])

typedef struct {
        Aoehdr;
        uchar   aflag;
        uchar   errfeat;
        uchar   scnt;
        uchar   cmdstat;
        uchar   lba[6];
        uchar   res[2];
        uchar   payload[];
} Aoeata;

#define AOEATASZ        offsetof(Aoeata, payload[0])

typedef struct {
        Aoehdr;
        uchar   bufcnt[2];
        uchar   fwver[2];
        uchar   scnt;
        uchar   verccmd;
        uchar   cslen[2];
        uchar   payload[];
} Aoeqc;

#define AOEQCSZ         offsetof(Aoeqc, payload[0])