Enabling LRO

Purpose

The Hi1822 NICs support large receive offload (LRO). You can enable this function and set the LRO parameter properly. LRO aggregates multiple received TCP data into a large packet and transmits the packet to the protocol stack for processing, reducing processing overheads of the upper-layer protocol stack. LRO is implemented by the NIC and does not consume CPU resources. You are advised to enable the LRO parameter.

Procedure

1. Check whether the value of the LRO parameter is set to on. The default value is off. Assume that the current NIC name is enp131s0.

   1	ethtool -k enp131s0

   

2. Enable LRO.

   ethtool -K enp131s0 lro on

3. Check whether the value of the LRO parameter is set to on.

   1	ethtool -k enp131s0