PCIe MPS(Max Payload Size) in intel server

Hi, everyone

My server has a nic card of which PCIe MPS(max payload size) capability is 1024 bytes.

However, the MPS of the nic card negotiated is 128 bytes.

We search for the reason and we found that the MPS capability of the intel PCIe bridge connected with our nic is 128 bytes.

Our OS is linux.

Please let me know if there is any method for modifing the MPS of our nic?

If the MPS of the bridge is 128bytes, is the MPS of the nic connected to it alway under 128bytes?

Thanks in advnace.

J.Hwan Kim