Description: The supported performance grade for Avant-X 25G Ethernet IP is -3 (fastest).
Radiant's critical warning as below will appear when using -1 and -2 performance grade devices.
This speed grade limitation applies only to Avant-X 25G Ethernet IP. There is no speed grade limitation to 10G Ethernet IP on Avant-G and Avant-X.
Example warning:
CRITICAL <52351082> - Instance '.../lscc_eth25g_ss_top_inst/genblk1.u_lscc_eth25g_phy/secured_instance_29_84/secured_instance_28_0/secured_instance_27_1'(MPPHYX4_MODE) - PROTOCOL=ETHERNET_25G is supported in device LAV-AT-X70 only at -3 performance grade. -2 or -1 performance grade can still run through but will not have any effect.
Solution:
Choose -3 performance grade Avant-X FPGA to implement the 25G Ethernet IP design.
There is no plan for -1 and -2 performance grades to support 25G Ethernet IP.