For RSS (Receive Side Scaling, not Really Simple Syndication), check here
https://access.redhat.com/documentation ... etwork-rss
https://docs.microsoft.com/en-us/window ... de-scaling
I have went through a lot of documents still I cannot find any useful information to determine whether rpi4 is RSS-capable or not. Neither Broadcomm nor the rpi disclose any detailed information on this. I wonder if anybody knows something about this.
For the NIC of RPi 4, the PHY and MAC are seperated. The chip near RJ45 connector is actually the PHY, bcm54213pe and its connected to the MAC with RGMII inside the SoC. I know broadcomm provided some details of bcm54213pe but RSS-capability is determined by the MAC inside SoC, where no useful info is provided.