Why do I see an IP generation error for the E-Tile Hard IP for Ethernet Intel® FPGA IP when 25G SyncE, IEEE 1588 PTP and RSFEC are enabled at the same time?

Due to a problem in the Intel® Quartus® Prime Pro Edition Software version 21.2, you will observe the IP generation error "The current value "custom_rate_25gx1_fec" for parameter "l_elane_ehip_rate" (l_elane_ehip_rate) is invalid" when 25G SyncE, IEEE 1588 PTP and RSFEC are enabled in the E-Tile Hard IP for Ethernet Intel® FPGA IP.

There is no workaround for this problem.

For successful IP generation in version 21.2, only two of these three options can be chosen at the same time.   

This problem is fixed starting with the Intel® Quartus® Prime Pro/Standard Edition Software version 21.3.