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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure SBIOP Synchronous Block I/O Parameter
0000 0 Signed 2 SBIRESET (0) Dummy name at offset 0 for
DATAMAP
0000 0 Signed 2 SBIDEVNO The virtual device number of the
DASD to be used.
0002 2 Bitstring 1 SBIKEY The Storage Protection Key to use
for I/O operations with this
request.
0003 3 Bitstring 1 SBICODE Type of Request.
00000001 SBIWRITE X'01' SBIWRITE Write data from
storage to DASD.
00000002 SBIREAD X'02' SBIREAD Read data from DASD
to storage.
00000004 SBIFORMT X'04' SBIFORMT Format SCSI DASD
0004 4 Signed 4 SBIBLKSZ Size of physical records on DASD
for this request.
0008 8 Signed 2 SBIFRMAT (0) Dummy name use by format ORG
0008 8 Address 4 SBILSTAD Address of list of block number /
data address pairs for this
request. See SBILIST, below.
000C 12 Signed 4 SBILSTCT The number of pairs in list at
SBILSTAD. Provided by the issuer
of the diagnose.
000001F4 SBILSTMX 500 Maximum number of blocks that
may be processed in one READ or
WRITE operation.
0010 16 Signed 4 SBIBLKCT The number of blocks processed by
CP.
0014 20 Bitstring 1 SBIDEVST Device status byte, returned by
CP.
0015 21 Bitstring 1 SBISCHST The subchannel status byte,
returned by CP
0016 22 Signed 2 SBIRESCT The residual count, returned by
CP.
0018 24 Bitstring 1 SBILPM Path I/O will be issued down
0019 25 Bitstring 1 SBIRESV0 (3) Reserved for future IBM use.
001C 28 Signed 2 SBIRESVD Reserved for future IBM use.
001E 30 Signed 2 SBISNSCT The amount of sense data present.
0020 32 Bitstring 24 SBIRESV1 Reserved for IBM future use
0038 56 Bitstring 32 SBISDATA The sense data (only if unit
check is on in SBIDEVST)
00000058 SBIBYLEN *-SBIOP Length (in bytes) of
SBIOP
0000000B SBIDWSIZ (SBIBYLEN+7)/8 Size of SBIOP in
doublewords.
0008 8 Bitstring 3 *
000B 11 Bitstring 1 SBILSTA3 Right-most byte for alignment
test
The following ORG is for use by SBICODE = FORMAT.
0008 8 Dbl-Word 8 SBILBA Logical block address to start
the format on
0010 16 Dbl-Word 8 SBIFBLKS Number of blocks to format (zero
means format to end of device)
0018 24 Address 8 SBIFDATA Pointer to a 512 byte block of
data to use for formatting (zero
means format with zeros)
0020 32 Dbl-Word 8 SBIDIDBK Number of blocks which will be
formatted when SBIFBLKS is zero
(minidisk size)
0028 40 Signed 4 SBIFRETC IBM service diagnostic rc
002C 44 Signed 4 SBIFREAC IBM service diagnostic reason
0030 48 Signed 4 SBIFEID IBM service diagnostic errid
0034 52 Bitstring 36 SBIFRSVD Reserved for future IBM use
The following ORG is to reset LOCTR to zero for DATAMAP.
SBILIST is not a redefinition of any part of SBIOP, but
the mapping of the data pointed to by SBILSTAD.
Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure SBILIST Synchronous Block I/O Parameter
0000 0 Dbl-Word 8 SBILNTRY (0) A list entry is two words long
0000 0 Signed 4 SBILBKNO The block number of data on DASD
( zero - origin )
0004 4 Address 4 SBILBFAD The absolute address of data in
guest machine storage.
0008 8 Bitstring 8 SBILNEXT (0) The next list entry starts
here...
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