1 /* $NetBSD: scsi_message.h,v 1.8 2002/04/23 09:46:51 bouyer Exp $ */ 2 3 /* Messages (1 byte) */ /* I/T (M)andatory or (O)ptional */ 4 #define MSG_CMDCOMPLETE 0x00 /* M/M */ 5 #define MSG_EXTENDED 0x01 /* O/O */ 6 #define MSG_SAVEDATAPOINTER 0x02 /* O/O */ 7 #define MSG_RESTOREPOINTERS 0x03 /* O/O */ 8 #define MSG_DISCONNECT 0x04 /* O/O */ 9 #define MSG_INITIATOR_DET_ERR 0x05 /* M/M */ 10 #define MSG_ABORT 0x06 /* O/M */ 11 #define MSG_MESSAGE_REJECT 0x07 /* M/M */ 12 #define MSG_NOOP 0x08 /* M/M */ 13 #define MSG_PARITY_ERROR 0x09 /* M/M */ 14 #define MSG_LINK_CMD_COMPLETE 0x0a /* O/O */ 15 #define MSG_LINK_CMD_COMPLETEF 0x0b /* O/O */ 16 #define MSG_BUS_DEV_RESET 0x0c /* O/M */ 17 #define MSG_ABORT_TAG 0x0d /* O/O */ 18 #define MSG_CLEAR_QUEUE 0x0e /* O/O */ 19 #define MSG_INIT_RECOVERY 0x0f /* O/O */ 20 #define MSG_REL_RECOVERY 0x10 /* O/O */ 21 #define MSG_TERM_IO_PROC 0x11 /* O/O */ 22 23 /* Messages (2 byte) */ 24 #define MSG_SIMPLE_Q_TAG 0x20 /* O/O */ 25 #define MSG_HEAD_OF_Q_TAG 0x21 /* O/O */ 26 #define MSG_ORDERED_Q_TAG 0x22 /* O/O */ 27 #define MSG_IGN_WIDE_RESIDUE 0x23 /* O/O */ 28 29 /* Identify message */ /* M/M */ 30 #define MSG_IDENTIFYFLAG 0x80 31 #define MSG_IDENTIFY_DISCFLAG 0x40 32 #define MSG_IDENTIFY(lun, disc) \ 33 (MSG_IDENTIFYFLAG | ((disc) ? MSG_IDENTIFY_DISCFLAG : 0) | (lun)) 34 #define MSG_ISIDENTIFY(m) ((m) & MSG_IDENTIFYFLAG) 35 36 /* Extended messages (opcode and length) */ 37 #define MSG_EXT_SDTR 0x01 38 #define MSG_EXT_SDTR_LEN 0x03 39 40 #define MSG_EXT_WDTR 0x03 41 #define MSG_EXT_WDTR_LEN 0x02 42 43 #define MSG_EXT_WDTR_BUS_8_BIT 0x00 44 #define MSG_EXT_WDTR_BUS_16_BIT 0x01 45 #define MSG_EXT_WDTR_BUS_32_BIT 0x02 46 47 #define MSG_EXT_PPR 0x04 48 #define MSG_EXT_PPR_LEN 0x06 49 /* 50 * Offsets: 0x3: transfer period factor 51 * 0x4: reserved 52 * 0x5: REQ/ACK offset 53 * 0x6: transfer width exponent 54 * 0x7: flags 55 */ 56 #define MSG_EXT_PPR_IU 0x01 57 #define MSG_EXT_PPR_DT 0x02 58 #define MSG_EXT_PPR_QAS 0x04 59 #define MSG_EXT_PPR_HOLDMCS 0x08 60 #define MSG_EXT_PPR_WRFLOW 0x10 61 #define MSG_EXT_PPR_RDSTRM 0x20 62 #define MSG_EXT_PPR_RTI 0x40 63 #define MSG_EXT_PPR_PCOM 0x80 64 65 #define MSG_ISEXTENDED(m) ((m) == MSG_EXTENDED) 66 67 /* message length */ 68 #define MSG_IS1BYTE(m) \ 69 ((!MSG_ISEXTENDED(m) && (m) < 0x20) || MSG_ISIDENTIFY(m)) 70 #define MSG_IS2BYTE(m) (((m) & 0xf0) == 0x20) 71