[vfio-users] VFIO 128 byte TLP size?

Oliver Heid Oliver.Heid at h-next.de
Fri Mar 9 17:03:14 UTC 2018


Does VFIO somehow limit PCIe TLP size to 128 bytes on virtualized 
devices? In our case MaxPayload = MaxReadReq = 256 bytes in PCI config, 
and we use 4k aligned base addresses and do not cross 4k boundaries, but 
actual package size is only 128B. Any idea how to get 256 byte TLPs?
Thanks!




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