Sun SPARC(R) Enterprise M4000/M5000 - How to tell if we have external IOX box attached to a platform.

Asset ID:	1-71-1590249.1
Update Date:	2017-10-11
Keywords:

Solution Type Technical Instruction Sure

Solution 1590249.1 : Sun SPARC(R) Enterprise M4000/M5000 - How to tell if we have external IOX box attached to a platform.

Applies to:

Sun SPARC Enterprise M5000 Server - Version All Versions to All Versions [Release All Releases]
Sun SPARC Enterprise M4000 Server - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Goal

M4000/M5000 - How to tell if we have external IOX box on the platform.

Solution

Use the ioxadm command available in the xscf> prompt

Example : Display a single External I/O Expansion Unit

XSCF> ioxadm list
     IOX           Link 0              Link 1
     IOX@0033      IOU#1-PCI#4         IOU#1-PCI#1
     IOX@12B4      -                   IOU#1-PCI#2
     -             IOU#2-PCI#1

Pls note that the M3000 do not support External I/O Expansion Unit.

Required privillege : fieldeng, platadm, platop

ioxadm env :- Display the environmental state of the External I/O Expansion Unit or link card.
ioxadm list :- List information about the External I/O Expansion Unit, links, and External I/O Expansion Unit FRUs.

Required privillege : fieldeng, platadm

ioxadm locator Display and set the status of the locator LED.
ioxadm poweroff Power down External I/O Expansion Unit FRUs for replacement.
ioxadm poweron Return an External I/O Expansion Unit FRU to normal operation after being powered off.

Required privillege : fieldeng

ioxadm reset Reinitialize External I/O Expansion Unit FRUs.
ioxadm setled Set the state of External I/O Expansion Unit LEDs.

Note – The External I/O Expansion Unit’s link cards and link cable do not appear in
the device map. When you install a link card in the host server, the OpenBoot PROM
will not detect that card. After you connect the link cable(s) between the link card in
the host server and the link card in an I/O boat, the OpenBoot PROM can detect
circuitry and any PCI cards in the I/O Boat.

Since the obp do not detect the link card, the showdevs, prtdiag, prtpicl will not display any respective
details or properties of the link card in both OBP and OS.

The following additional info might be difficult or hard to understand pls ignore it.

device mapping

Parts of a Device Path for a PCI Express I/O Boat
Item Description Device Tree Path Example
1 IOU slot /pci@xy,700000
1a link cards (Nothing is displayed for link cards. This is normal behavior. They are not visible to the OpenBoot PROM.)
2 /pci@0 /pci@xy,700000/pci@0
3 /pci@9 /pci@xy,700000/pci@0/pci@9
4 /pci@0 /pci@xy,700000/pci@0/pci@9/pci@0
5 /pci@9 /pci@xy,700000/pci@0/pci@9/pci@0/pci@9
6 PCI card /pci@xy,700000/pci@0/pci@9/pci@0/pci@9/abc@n

device mapping

Parts of a Device Path for a PCI-X I/O Boat
Item Description Device Tree Path Example
1 IOU slot /pci@xy,700000
1a link cards (Nothing is displayed for link cards. This is normal behavior. They are not visible to the OpenBoot PROM.)
2 /pci@0 /pci@xy,700000/pci@0
3 /pci@8 /pci@xy,700000/pci@0/pci@8
4 /pci@0 /pci@xy,700000/pci@0/pci@8/pci@0
5 PCI card /pci@xy,700000/pci@0/pci@8/pci@0,1/abc@n

https://mos-cores.us.oracle.com/opltools/oplwebdata/images/IOEXP_diagram.gif
https://mos-cores.us.oracle.com/opltools/oplwebdata/images/IOEXP_PCIX_devpath_example.gif

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