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Fixed

LIN8-8578 : PCIe enumeration ignores NIC connected to a PCIe switch

Created: Jan 17, 2018    Updated: Dec 3, 2018
Resolved Date: Mar 15, 2018
Found In Version: 8.0.0.24
Fix Version: 8.0.0.26
Severity: Severe
Applicable for: Wind River Linux 8
Component/s: BSP

Description

With the Cavium Octean3 BSP (cav-octeon3), the system may not enumerate all devices connected behind a PCIe switch.

The 'lspci' command may be used to show not all devices have been enumerated.  For example:

Here is the output of `lspci -nn` on WRL8:
root@localhost:~# lspci -nn
0001:01:00.0 PCI bridge [0604]: PMC-Sierra Inc. Device [11f8:8546]
0001:01:00.1 Bridge [0680]: PMC-Sierra Inc. Device [11f8:8546]
0001:02:00.0 PCI bridge [0604]: PMC-Sierra Inc. Device [11f8:8546]

The expected output may be:
~ # lspci -nn
0001:00:00.0 PCI bridge [0604]: Cavium Networks Device [177d:9700] (rev 03)
0001:01:00.0 PCI bridge [0604]: PMC-Sierra Inc. Device [11f8:8546]
0001:01:00.1 Bridge [0680]: PMC-Sierra Inc. Device [11f8:8546]
0001:02:00.0 PCI bridge [0604]: PMC-Sierra Inc. Device [11f8:8546]
0001:03:00.0 Ethernet controller [0200]: Intel Corporation 82574L Gigabit Network Connection [8086:10d3]

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