Forum Discussion
agula
Occasional Contributor
Occasional ContributorStratix 10 PCIe SR-IOV
Hi All,
I am using the PCIe SR-IOV IP for Stratix 10. I see that Virtual Functions default to a Maximum Read Request and Max Payload Size of 128B. Is this a limitation of the actual specification ?...
SengKok_L_Intel
Regular Contributor
Regular ContributorHi,
System software can control the max read request & Max Payload size from the Device Control Register. You may refer to the Table 66 for the address offset.
https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_s10_pcie_avst.pdf
Regards -SK
agulaOccasional Contributor
Occasional ContributorHi,
There is no max read request or payload settings for the VF in Table 66.
The only MPS and MRRS settings is the one for the PF. The PF settings are 256B and 512B respectively but they are not inherited by the VF.
