auto_negotiate:Control autonegotiation by setting 0 for disable and 1 for enable.
force_speed_duplex:Control speed and duplex by setting appropriate value . See README for details of this feature.
max_tx_packets:Control max number of outstanding tx packets by setting a value between 32 and 1024.
max_rx_packets:Control max number of rx packets by setting a value between 32 and 1024.
optimization:Control optimization by setting value 0 for optimizing throughput and 1 for optimizing CPU.
poll_interval_in_us:Control poll interval when optimization is CPU by setting a value between 0 and 2000.
hwmode:Control hwmode by setting 1 for hardware mode 1 and 2 for hardware mode 2. See README for details.
seg_offload:Control segmentation offload by setting 0 for disable and 1 for enable. This parameter is allowed in hardware mode 2 only.
mtu:Control mtu by setting value between 576 and 9202. This parameter is allowed in hardware mode 2 only.
media:Control media interface by setting value 0 for Auto, 1 for RGMII, and 2 for MII. This parameter is allowed in hardware mode 2 only.
tx_checksum_offload:Control tx checksum offload by setting value 0 for disable and 1 for enable. This parameter is allowed in hardware mode 2 only.
rx_checksum_offload:Control rx checksum offload by setting value 0 for disable and 1 for enable. This parameter is allowed in hardware mode 2 only.