How to change the number of PCIe lanes(from Width x1 to Width x8)

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
7

Yes, after I have successfully tested Bidirectional Data Transfer

I want to try to test data transfer performance, when I execute lspci in orin, I can only see two devices 0001:00:00.0 and 0001:01:00.0

So are there any steps I’m missing here?