sys/dev/scsipi/scsi_message.h

   1 /*      $NetBSD: scsi_message.h,v 1.16 2005/12/11 12:23:50 christos Exp $       */
   2
   3 /* Messages (1 byte) */              /* I/T (M)andatory or (O)ptional */
   4 #define MSG_CMDCOMPLETE         0x00 /* M/M */
   5 #define MSG_TASK_COMPLETE       0x00 /* M/M */ /* SPI3 Terminology */
   6 #define MSG_EXTENDED            0x01 /* O/O */
   7 #define MSG_SAVEDATAPOINTER     0x02 /* O/O */
   8 #define MSG_RESTOREPOINTERS     0x03 /* O/O */
   9 #define MSG_DISCONNECT          0x04 /* O/O */
  10 #define MSG_INITIATOR_DET_ERR   0x05 /* M/M */
  11 #define MSG_ABORT               0x06 /* O/M */
  12 #define MSG_ABORT_TASK_SET      0x06 /* O/M */ /* SPI3 Terminology */
  13 #define MSG_MESSAGE_REJECT      0x07 /* M/M */
  14 #define MSG_NOOP                0x08 /* M/M */
  15 #define MSG_PARITY_ERROR        0x09 /* M/M */
  16 #define MSG_LINK_CMD_COMPLETE   0x0a /* O/O */
  17 #define MSG_LINK_CMD_COMPLETEF  0x0b /* O/O */
  18 #define MSG_BUS_DEV_RESET       0x0c /* O/M */
  19 #define MSG_TARGET_RESET        0x0c /* O/M */ /* SPI3 Terminology */
  20 #define MSG_ABORT_TAG           0x0d /* O/O */
  21 #define MSG_ABORT_TASK          0x0d /* O/O */ /* SPI3 Terminology */
  22 #define MSG_CLEAR_QUEUE         0x0e /* O/O */
  23 #define MSG_CLEAR_TASK_SET      0x0e /* O/O */ /* SPI3 Terminology */
  24 #define MSG_INIT_RECOVERY       0x0f /* O/O */ /* Deprecated in SPI3 */
  25 #define MSG_REL_RECOVERY        0x10 /* O/O */ /* Deprecated in SPI3 */
  26 #define MSG_TERM_IO_PROC        0x11 /* O/O */ /* Deprecated in SPI3 */
  27 #define MSG_QAS_REQUEST         0x55 /* O/O */ /* SPI3 */
  28
  29 /* Messages (2 byte) */
  30 #define MSG_SIMPLE_Q_TAG        0x20 /* O/O */
  31 #define MSG_SIMPLE_TASK         0x20 /* O/O */ /* SPI3 Terminology */
  32 #define MSG_HEAD_OF_Q_TAG       0x21 /* O/O */
  33 #define MSG_HEAD_OF_QUEUE_TASK  0x21 /* O/O */ /* SPI3 Terminology */
  34 #define MSG_ORDERED_Q_TAG       0x22 /* O/O */
  35 #define MSG_ORDERED_TASK        0x22 /* O/O */ /* SPI3 Terminology */
  36 #define MSG_IGN_WIDE_RESIDUE    0x23 /* O/O */
  37 #define MSG_ACA_TASK            0x24 /* 0/0 */ /* SPI3 */
  38
  39 /* Identify message */               /* M/M */
  40 #define MSG_IDENTIFYFLAG        0x80
  41 #define MSG_IDENTIFY_DISCFLAG   0x40
  42 #define MSG_IDENTIFY(lun, disc) \
  43         (MSG_IDENTIFYFLAG | ((disc) ? MSG_IDENTIFY_DISCFLAG : 0) | (lun))
  44 #define MSG_ISIDENTIFY(m)       ((m) & MSG_IDENTIFYFLAG)
  45 #define MSG_IDENTIFY_LUNMASK    0x3f
  46
  47 /* Extended messages (opcode and length) */
  48 #define MSG_EXT_SDTR            0x01
  49 #define MSG_EXT_SDTR_LEN        0x03
  50
  51 #define MSG_EXT_WDTR            0x03
  52 #define MSG_EXT_WDTR_LEN        0x02
  53 #define MSG_EXT_WDTR_BUS_8_BIT  0x00
  54 #define MSG_EXT_WDTR_BUS_16_BIT 0x01
  55 #define MSG_EXT_WDTR_BUS_32_BIT 0x02 /* Deprecated in SPI3 */
  56
  57 #define MSG_EXT_PPR             0x04 /* SPI3 */
  58 #define MSG_EXT_PPR_LEN         0x06
  59 /*
  60  * Offsets:     0x3: transfer period factor
  61  *              0x4: reserved
  62  *              0x5: REQ/ACK offset
  63  *              0x6: transfer width exponent
  64  *              0x7: flags
  65  */
  66 #define MSG_EXT_PPR_IU          0x01
  67 #define MSG_EXT_PPR_DT          0x02
  68 #define MSG_EXT_PPR_QAS         0x04
  69 #define MSG_EXT_PPR_HOLDMCS     0x08
  70 #define MSG_EXT_PPR_WRFLOW      0x10
  71 #define MSG_EXT_PPR_RDSTRM      0x20
  72 #define MSG_EXT_PPR_RTI         0x40
  73 #define MSG_EXT_PPR_PCOM        0x80
  74
  75 /*
  76  * FreeBSD compat for above.
  77  */
  78 #define MSG_EXT_PPR_QAS_REQ     MSG_EXT_PPR_QAS
  79 #define MSG_EXT_PPR_DT_REQ      MSG_EXT_PPR_DT
  80 #define MSG_EXT_PPR_IU_REQ      MSG_EXT_PPR_IU
  81 #define MSG_EXT_PPR_PCOMP_EN    MSG_EXT_PPR_PCOM
  82 #define MSG_EXT_PPR_RD_STRM     MSG_EXT_PPR_RDSTRM
  83
  84 #define MSG_ISEXTENDED(m)       ((m) == MSG_EXTENDED)
  85
  86 /* message length */
  87 #define MSG_IS1BYTE(m)                                                  \
  88         ((!MSG_ISEXTENDED(m) && (m) < 0x20) ||                          \
  89             (m) == MSG_QAS_REQUEST || MSG_ISIDENTIFY(m))
  90 #define MSG_IS2BYTE(m)          (((m) & 0xf0) == 0x20)