Re: [PATCH] bgmac: Remove all offloading features, including GRO.
From: David Miller <davem@davemloft.net>
Date: 2017-09-15 23:14:09
From: Rosen Penev <redacted> Date: Fri, 15 Sep 2017 15:22:18 -0700
On a linksys E1200v1 (actually a crossflashed E1000v2), the offloading features give no measurable benefit to speed or latency. Furthermore, disabling GRO actually improves iperf performance by a whoppimg 3mbps. Results:
...
- net_dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + net_dev->features &= NETIF_F_GRO; net_dev->hw_features = net_dev->features;
This doesn't disable GRO.