PCIe bus enumeration

Jan. 22, 2015

      Hi,

Is there any method for assigning PCIe bus fixed?

For example, my device pcie bus number is changed
when another pcie device is inserted.

I have a 4 same pcie device and i want to identify each device
according to the pci bus number (according to pcie slot they are 
inserted into).

When i change kernel boot parameter for kernel to assign the pci bus number,
the result was the same.

Is there any method for that?

Thanks in advance.

Regards,
J.Hwan Kim.