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  • Comparing IBM MCA SCSI ADF Items

    From Louis Ohland@21:1/5 to All on Thu Jan 5 06:37:16 2023
    Folks, I have a crunch that all IBM SCSI adapters on the Holy Bus use
    similar resources. Of course, the 4-4 looks like the love child of SPOCK
    and Corvette, or so I hope.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Louis Ohland@21:1/5 to All on Thu Jan 5 07:32:38 2023
    PdAt:
    uniquetype = "adapter/mca/hscsi"
    attribute = "dma_lvl"
    deflt = "3"
    values = "0-14,1"
    width = ""
    type = "A"
    generic = "D"
    rep = "nr"
    nls_index = 6

    nameditem
    Prompt "DMA Arbitration Level"
    Choice "Level C"
    pos[1]=XXXX1100b
    arb 0ch
    Choice "Level D"
    pos[1]=XXXX1101b
    arb 0dh
    Choice "Level E"
    pos[1]=XXXX1110b
    arb 0eh
    Choice "Level 8"
    pos[1]=XXXX1000b
    arb 8
    Choice "Level 9"
    pos[1]=XXXX1001b
    arb 9
    Choice "Level A"
    pos[1]=XXXX1010b
    arb 0ah
    Choice "Level B"
    pos[1]=XXXX1011b
    arb 0bh
    Choice "Level 1"
    pos[1]=XXXX0001b
    arb 1
    Choice "Level 3"
    pos[1]=XXXX0011b
    arb 3
    Choice "Level 5"
    pos[1]=XXXX0101b
    arb 5
    Choice "Level 6"
    pos[1]=XXXX0110b
    arb 6
    Choice "Level 7"
    pos[1]=XXXX0111b
    arb 7

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Louis Ohland@21:1/5 to All on Thu Jan 5 07:36:57 2023
    PdAt:
    uniquetype = "adapter/mca/hscsi"
    attribute = "id"
    deflt = "7"
    values = "0-7,1"
    width = ""
    type = "R"
    generic = "UD"
    rep = "nr"
    nls_index = 7


    nameditem
    Prompt "SCSI Adapter Address (ID)"
    Choice "7"
    pos[1]=1110XXXXb
    pos[2]=X0111XXXb
    Choice "6"
    pos[1]=1100XXXXb
    pos[2]=X0110XXXb
    Choice "5"
    pos[1]=1010XXXXb
    pos[2]=X0101XXXb
    Choice "4"
    pos[1]=1000XXXXb
    pos[2]=X0100XXXb
    Choice "3"
    pos[1]=0110XXXXb
    pos[2]=X0011XXXb
    Choice "2"
    pos[1]=0100XXXXb
    pos[2]=X0010XXXb
    Choice "1"
    pos[1]=0010XXXXb
    pos[2]=X0001XXXb
    Choice "0"
    pos[1]=0000XXXXb
    pos[2]=X0000XXXb

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Louis Ohland@21:1/5 to All on Thu Jan 5 10:00:21 2023
    08EFEh "IBM PS/2 SCSI Adapter"
    NumBytes 3
    fixedresources
    pos[2]=1X1000XXb
    pos[1]=XXXXXXXXb
    pos[0]=XXXXXXXXb
    int 0eh
    Begin Device 2 2 1 NoDMA


    08EFFh "IBM PS/2 SCSI Adapter w/Cache"
    NumBytes 3
    fixedresources
    pos[2]=1X1000XXb
    pos[1]=XXXXXXXXb
    pos[0]=XXXXXXXXb
    int 0eh
    Begin Device 2 2 0 NoDMA

    08EFCh "IBM PS/2 SCSI-2 Fast/Wide Adapter/A"
    NumBytes 6
    fixedresources
    pos[3]=XX00XXXXb
    pos[4]=01111100b
    pos[5]=XX00XXXXB
    int 0eh
    Begin Device 2 2 2 NoDMA

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Louis Ohland@21:1/5 to All on Thu Jan 5 10:10:20 2023
    https://d1wl9nui6miy8.cloudfront.net/media/965765/wp-understanding-the-aix-object-data-manager.pdf

    page 7

    Data about all I/O devices and also network configuration data (such as
    IP configuration) are held primarily in these core classes:
    • PdDv (Predefined Devices) —- list of all devices supported by this release of AIX
    • PdAt (Predefined Attributes) —- default values for all device attributes • CuDv (Customized Devices) —- the devices present on this machine
    • CuAt (Customized Attributes) —- non-default attribute values

    Maybe the Customized Attributes?

    Not klar how they relate to POS...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)