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emrahener's avatar
emrahener
Icon for New Contributor rankNew Contributor
3 years ago

Limit PCIe speed to Gen2

Hi, I am using Multi Channel DMA Intel® FPGA IP for PCI Express IP on a Agilex device to implement a x16 PCIe EndPoint. Due to some problems I want to change the advertised speed to Gen2 form Gen3....
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Wincent_Altera's avatar
Wincent_Altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi,


You can generate the gen3 design example. But please ensure that you set your BIOS PCIe speed setting into gen2.

Then suppose it will auto downgrade into the gen2 speed.


You may check the gen speed via

$ sudo lspci -s 01:00.0 -vv