DG0BK | Back to Index page

| Prolog Control Block Contents DG0BK DSECT Storage Layout Cross Reference (Contains links to field and bit definitions) |
Programming Interface Information: This information is NOT intended to be used as Programming Interfaces of z/VM.

DG0BK Control Block Content | Top of page

     DG0BK DSECT
    Top of page

    Hex   Dec Type/Val   Lng Label (dup)    Comments
    ---- ---- --------- ---- -------------- --------
    0000    0 Structure      DG0BK          NETWORK DIAGNOSE x'2A8' Request Blocks
    0000    0 Bitstring    6 DG0MAC         MAC Address for Interface
    0006    6 Bitstring    1 DG0FMT         Query Interface Format
              .... ....      DG0FMINT       0 DG0FMINT Initial Release
              .... ...1      DG0FMOCM       1 DG0FMOCM Operation Code Mask
                                            Support
    0007    7 Bitstring    1 DG0FEAT        Interface Features
              1... ....      DG0PCI         X'80' DG0PCI PCI IRPT for inbound
                                            packets
    0008    8 Signed       2 DG0PAGES       Guest real pages required to
                                            establish a device connection
    000A   10 Signed       2 DG0PAG31       Guest real pages below 2 GIG to
                                            establish a device connection
    000C   12 Signed       2 *              Reserved for future IBM Use
    000E   14 Signed       2 DG0MACL        MAC Registration Limit
    0010   16 Dbl-Word     8 DG0CCW         Activation CCW
    0018   24 Dbl-Word     8 * (4)          Reserved for Future IBM Use
    0038   56 Bitstring    1 DG0OCM0        Operation Code Mask Byte 0
              1... ....      DG0OMQRY       X'80' DG0OMQRY Query Interface
              .1.. ....      DG0OMEST       X'40' DG0OMEST Establish Device
                                            Connection
              ..1. ....      DG0OMSND       X'20' DG0OMSND Send Datagram
                                            Request
              ...1 ....      DG0OMRCV       X'10' DG0OMRCV Receive Datagram
                                            Request
              .... 1...      DG0OMMUL       X'08' DG0OMMUL Multicast MAC
                                            Registration
              .... .1..      DG0OMOPT       X'04' DG0OMOPT Network Device
                                            Options
              1111 11..      DG0OMBAS       DG0OMQRY+DG0OMEST+DG0OMSND+DG0OMR
                                            CV+DG0OMMUL+DG0OMOPT DG Base
                                            Support
    0039   57 Bitstring    1 DG0OCM1        Operation Code Mask Byte 1
    003A   58 Bitstring    1 DG0OCM2        Operation Code Mask Byte 2
    003B   59 Bitstring    1 DG0OCM3        Operation Code Mask Byte 3
    003C   60 Signed       4 *              Reserved for Future IBM Use
    0040   64 Bitstring    1 DG0$END (0)    The end
          DG1BK Operation Code x'01' Establish Device Connection

DG0BK Storage Layout | Top of page

    *** DG0BK - NETWORK DIAGNOSE x'2A8' Request Blocks
    *
    *     +-----------------------------------------+------+------+
    *   0 |                 DG0MAC                  |DG0FMT|:FEAT |
    *     +-------------+-------------+-------------+------+------+
    *   8 |  DG0PAGES   |  DG0PAG31   |/////////////|  DG0MACL    |
    *     +-------------+-------------+-------------+-------------+
    *  10 |                        DG0CCW                         |
    *     +-------------------------------------------------------+
    *  18 |///////////////////////////////////////////////////////|
    *     =///////////////////////////////////////////////////////=
    *     |///////////////////////////////////////////////////////|
    *     +------+------+------+------+---------------------------+
    *  38 |:OCM0 |:OCM1 |:OCM2 |:OCM3 |///////////////////////////|
    *     +------+------+------+------+---------------------------+
    *
    *** DG0BK - NETWORK DIAGNOSE x'2A8' Request Blocks

DG0BK Cross Reference | Top of page

    Symbol         Dspl Value
    -------------- ---- -----
    DG0$END        0040
    DG0CCW         0010
    DG0FEAT        0007
    DG0FMINT       0006 00
    DG0FMOCM       0006 01
    DG0FMT         0006
    DG0MAC         0000
    DG0MACL        000E
    DG0OCM0        0038
    DG0OCM1        0039
    DG0OCM2        003A
    DG0OCM3        003B
    DG0OMBAS       0038 FC
    DG0OMEST       0038 40
    DG0OMMUL       0038 08
    DG0OMOPT       0038 04
    DG0OMQRY       0038 80
    DG0OMRCV       0038 10
    DG0OMSND       0038 20
    DG0PAGES       0008
    DG0PAG31       000A
    DG0PCI         0007 80

This information is based on z/VM 7.2.0 Last updated on 24 Jun 2020 at 09:27:42 EDT.
Copyright IBM Corporation, 1990, 2020