To compile this driver into the kernel, place the following lines in your kernel configuration file:
device sume
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
if_sume_load="YES"
Overview
The sume driver provides support for NetFPGA SUME Virtex-7 FPGA Development Board with the reference NIC bitstream loaded onto it. The HDL design for the reference NIC project uses the RIFFA based DMA engine to communicate with the host machine over PCIe. Every packet is transmitted to / from the board via a single DMA transaction, taking up to two or three interrupts per one transaction which yields low performance.
There is no support for Jumbo frames as the hardware is capable of dealing only with frames with maximum size of 1514 bytes. The hardware does not support multicast filtering, provides no checksums, and offers no other offloading.
Releases
18 releases since FreeBSD 12.2-RELEASE; the text changed 6 times.