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computers / comp.sys.ibm.ps2.hardware / Comparing IBM MCA SCSI ADF Items

Comparing IBM MCA SCSI ADF Items

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From: ohland@charter.net (Louis Ohland)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Comparing IBM MCA SCSI ADF Items
Date: Thu, 5 Jan 2023 06:37:16 -0600
Organization: csiph.com Internet News Service
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by: Louis Ohland - Thu, 5 Jan 2023 12:37 UTC

"I/O Address" Re: Comparing IBM MCA SCSI ADF Items

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From: ohland@charter.net (Louis Ohland)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: "I/O Address" Re: Comparing IBM MCA SCSI ADF Items
Date: Thu, 5 Jan 2023 06:40:59 -0600
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by: Louis Ohland - Thu, 5 Jan 2023 12:40 UTC

Disclaimer, IBM could assign POS in any weg they desired. This is a
comparison of Tribble, Spock, and Corvette. The fixed resources changed
a bit between Tribble/Spock and the Corvette.

Prompt "I/O Address"
Choice "3540-3547"
pos[0]=XXXX000Xb
io 3540h-3547h
Choice "3548-354F"
pos[0]=XXXX001Xb
io 3548h-354Fh
Choice "3550-3557"
pos[0]=XXXX010Xb
io 3550h-3557h
Choice "3558-355F"
pos[0]=XXXX011Xb
io 3558h-355Fh
Choice "3560-3567"
pos[0]=XXXX100Xb
io 3560h-3567h
Choice "3568-356F"
pos[0]=XXXX101Xb
io 3568h-356Fh
Choice "3570-3577"
pos[0]=XXXX110Xb
io 3570h-3577h
Choice "3578-357F"
pos[0]=XXXX111Xb
io 3578h-357Fh

"I/O Address" and "bus_mem_addr" Re: Comparing IBM MCA SCSI ADF Items

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From: ohland@charter.net (Louis Ohland)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: "I/O Address" and "bus_mem_addr" Re: Comparing IBM MCA SCSI ADF Items
Date: Thu, 5 Jan 2023 06:49:28 -0600
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by: Louis Ohland - Thu, 5 Jan 2023 12:49 UTC

Seems better to display the ODM and ADF...

Disclaimer, IBM could assign POS in any weg they desired. This is a
comparison of Tribble, Spock, and Corvette. The fixed resources changed
a bit between Tribble/Spock and the Corvette.

PdAt:
uniquetype = "adapter/mca/hscsi"
attribute = "bus_mem_addr"
deflt = "0xe0000"
values = "0x30000-0xfffff000,0x1000"
width = "0x1000"
type = "M"
generic = "D"
rep = "nr"
nls_index = 2

"bus_intr_lvl" Re: Comparing IBM MCA SCSI ADF Items

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From: ohland@charter.net (Louis Ohland)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: "bus_intr_lvl" Re: Comparing IBM MCA SCSI ADF Items
Date: Thu, 5 Jan 2023 07:08:54 -0600
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by: Louis Ohland - Thu, 5 Jan 2023 13:08 UTC

"dma_lvl" and Re: Comparing IBM MCA SCSI ADF Items

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Newsgroups: comp.sys.ibm.ps2.hardware
Subject: "dma_lvl" and Re: Comparing IBM MCA SCSI ADF Items
Date: Thu, 5 Jan 2023 07:32:38 -0600
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by: Louis Ohland - Thu, 5 Jan 2023 13:32 UTC

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

"id" and "SCSI Adapter Address (ID)" Re: Comparing IBM MCA SCSI ADF Items

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Newsgroups: comp.sys.ibm.ps2.hardware
Subject: "id" and "SCSI Adapter Address (ID)" Re: Comparing IBM MCA SCSI ADF
Items
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by: Louis Ohland - Thu, 5 Jan 2023 13:36 UTC

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

IBM MCA SCSI fixed resources Re: Comparing IBM MCA SCSI ADF Items

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Newsgroups: comp.sys.ibm.ps2.hardware
Subject: IBM MCA SCSI fixed resources Re: Comparing IBM MCA SCSI ADF Items
Date: Thu, 5 Jan 2023 10:00:21 -0600
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by: Louis Ohland - Thu, 5 Jan 2023 16:00 UTC

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

Understanding the AIX Object Data Manager - Devices and Network Configuration

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Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Understanding the AIX Object Data Manager - Devices and Network
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by: Louis Ohland - Thu, 5 Jan 2023 16:10 UTC

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...

Sharing time! Re: "bus_intr_lvl" Re: Comparing IBM MCA SCSI ADF Items

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Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Sharing time! Re: "bus_intr_lvl" Re: Comparing IBM MCA SCSI ADF Items
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by: Louis Ohland - Thu, 5 Jan 2023 16:41 UTC

type =
"I" means Interrupt can be shared
"N" means Interrupt not shareable

Louis Ohland wrote:
> PS/2 SCSI fixed at 14.
>
> PdAt:
>     uniquetype = "adapter/mca/hscsi"
>     attribute = "bus_intr_lvl"
>     deflt = "14"
>     values = "3,4,5,7,10,11,12,14"
>     width = ""
>     type = "I"
>     generic = "D"
>     rep = "nl"
>     nls_index = 4

Bus attribute type Re: Comparing IBM MCA SCSI ADF Items

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From: ohland@charter.net (Louis Ohland)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Bus attribute type Re: Comparing IBM MCA SCSI ADF Items
Date: Thu, 5 Jan 2023 10:46:23 -0600
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by: Louis Ohland - Thu, 5 Jan 2023 16:46 UTC

Type Description
O Indicates an address and width for bus I/O
M Indicates an address and range for DMA transfers
B Indicates an address and range for non-DMA transfers
A Indicates a DMA arbitration level
I Indicates a sharable interrupt level
N Indicates a non-sharable interrupt level
P Indicates an interrupt priority class
W Used to specify bus I/O and memory widths if not already specified by
the address attribute
G Indicates a bus resource that must be assigned as part of a group
S Indicates a bus resource that must be shared with another adapter

Re: Bus attribute type Re: Comparing IBM MCA SCSI ADF Items

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Subject: Re: Bus attribute type Re: Comparing IBM MCA SCSI ADF Items
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by: IBMMuseum - Thu, 5 Jan 2023 17:06 UTC

Subject	Author
Comparing IBM MCA SCSI ADF Items	Louis Ohland
"I/O Address" Re: Comparing IBM MCA SCSI ADF Items	Louis Ohland
"I/O Address" and "bus_mem_addr" Re: Comparing IBM MCA SCSI ADF Items	Louis Ohland
"bus_intr_lvl" Re: Comparing IBM MCA SCSI ADF Items	Louis Ohland
Sharing time! Re: "bus_intr_lvl" Re: Comparing IBM MCA SCSI ADF Items	Louis Ohland
Bus attribute type Re: Comparing IBM MCA SCSI ADF Items	Louis Ohland
Re: Bus attribute type Re: Comparing IBM MCA SCSI ADF Items	IBMMuseum
"dma_lvl" and Re: Comparing IBM MCA SCSI ADF Items	Louis Ohland
"id" and "SCSI Adapter Address (ID)" Re: Comparing IBM MCA SCSI ADF	Louis Ohland
IBM MCA SCSI fixed resources Re: Comparing IBM MCA SCSI ADF Items	Louis Ohland
Understanding the AIX Object Data Manager - Devices and Network	Louis Ohland