From: Felix Manlunas <felix.manlu...@cavium.com> Date: Wed, 29 Mar 2017 17:56:43 -0700
> vxlan dev currently ignores lowerdev's gso_max_size, which adversely > affects TSO performance of liquidio if it's the lowerdev. Egress TCP > packets' skb->len often exceed liquidio's advertised gso_max_size. This > may happen on other NIC drivers. > > Fix it by assigning lowerdev's gso_max_size to that of vxlan dev. Might as > well do likewise for gso_max_segs. > > Single flow TSO throughput of liquidio as lowerdev (using iperf3): > > Before the patch: 139 Mbps > After the patch : 8.68 Gbps > Percent increase: 6,144 % > > Signed-off-by: Felix Manlunas <felix.manlu...@cavium.com> > Signed-off-by: Satanand Burla <satananda.bu...@cavium.com> Ok, since this location is exactly when we associate the lowerdev this is the right way to fix this. Applied, thank you.
