OSS OSS-PCIE-4UV-5slot, User Manual

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One Stop Systems
4U Value 5slot G3 Expansion Unit 32
5.2.3 How to verify 457 OSS unit in Linux OS
On a Linux based system, the installation can be verified by typing the following command lines:
lspci –vtt Displays the overall structure of the PCIe expansion system
lspci –vv Lists additional information about the PCIe switch information.
Ispci –vvv Displays the most comprehensive information about the expansion system.
To check that the 4U Value expansion unit and PCIe slots are detected type the
“lspci | grep “8796” command.
NOTE: Broadcom PLX is the PCIe switch (component) on the One Stop Systems457 expansion board. The 8796 is the assigned PLX chip device
number.
There are six PCIe slots per 457 board comprising of five downstream ports and one upstream port.

The five downstream ports are the actual PCIe slots on the 457 OSS board in which a PCIe card or GPU card is plugged in.

The upstream port is the target slot. This is the designated slot for the target card.
On Linux, these six slots are enumerated as “PCI bridge: PLX Technology, Inc. Device 8796”.

If you have one 457 OSS board attached to a host computer, it will only detect and enumerate six 'PCI bridge: PLX Technology, Inc
Device 8796"

If you have two 457 boards attached, the host computer will detect and enumerate twelve PCI bridge: PLX Technology, Inc Device
8796.