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RWitt's avatar
RWitt
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7 years ago

Platform Designer - A10 PCIe SR-IOV Won't run at 8Gbps when SR-IOV is enabled.

Same core with SR-IOV disabled runs fine at the 8Gbps Gen3 speed. When SR-IOV is enabled (1 PF, no VFs, MSI-X enabled) we enumerate at 5Gbps - maximum. And the lspci-configuration-space status for Li...
Nathan_R_Intel's avatar
Nathan_R_Intel
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7 years ago

Hie,

I tested using Quartus Prime Pro v18.1. If "enable SR_IOV support" is enabled, the system messages releases an error if 1 PF is selected and no VF is used.

Could you check if assigning at least 1 VF allows the link to achieve PCIe Gen3x8.

I am suspecting the equalization registers (to enabled equalization adaptation for Gen3 Rx) require at least 1 VF for the registers to be present in the PF.

Regards,

Nathan