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scsi_message.h revision 1.2 
      1 /* Messages (1 byte) */		     /* I/T (M)andatory or (O)ptional */
      2 #define MSG_CMDCOMPLETE		0x00 /* M/M */
      3 #define MSG_EXTENDED		0x01 /* O/O */
      4 #define MSG_SAVEDATAPOINTER	0x02 /* O/O */
      5 #define MSG_RESTOREPOINTERS	0x03 /* O/O */
      6 #define MSG_DISCONNECT		0x04 /* O/O */
      7 #define MSG_INITIATOR_DET_ERR	0x05 /* M/M */
      8 #define MSG_ABORT		0x06 /* O/M */
      9 #define MSG_MESSAGE_REJECT	0x07 /* M/M */
     10 #define MSG_NOOP		0x08 /* M/M */
     11 #define MSG_PARITY_ERROR	0x09 /* M/M */
     12 #define MSG_LINK_CMD_COMPLETE	0x0a /* O/O */
     13 #define MSG_LINK_CMD_COMPLETEF	0x0b /* O/O */
     14 #define MSG_BUS_DEV_RESET	0x0c /* O/M */
     15 #define MSG_ABORT_TAG		0x0d /* O/O */
     16 #define MSG_CLEAR_QUEUE		0x0e /* O/O */
     17 #define MSG_INIT_RECOVERY	0x0f /* O/O */
     18 #define MSG_REL_RECOVERY	0x10 /* O/O */
     19 #define MSG_TERM_IO_PROC	0x11 /* O/O */
     20 
     21 /* Messages (2 byte) */
     22 #define MSG_SIMPLE_Q_TAG	0x20 /* O/O */
     23 #define MSG_HEAD_OF_Q_TAG	0x21 /* O/O */
     24 #define MSG_ORDERED_Q_TAG	0x22 /* O/O */
     25 #define MSG_IGN_WIDE_RESIDUE	0x23 /* O/O */
     26 
     27 /* Identify message */		     /* M/M */
     28 #define MSG_IDENTIFYFLAG	0x80
     29 #define MSG_IDENTIFY(lun, disc)	(((disc) ? 0xc0 : MSG_IDENTIFYFLAG) | (lun))
     30 #define MSG_ISIDENTIFY(m)	((m) & MSG_IDENTIFYFLAG)
     31 
     32 /* Extended messages (opcode and length) */
     33 #define MSG_EXT_SDTR		0x01
     34 #define MSG_EXT_SDTR_LEN	0x03
     35 
     36 #define MSG_EXT_WDTR		0x03
     37 #define MSG_EXT_WDTR_LEN	0x02
     38