Package: ethtool Version: 1:4.8-1+b1 # uname -a Linux debian 4.16.0-0.bpo.1-arm64 #1 SMP Debian 4.16.5-1~bpo9+1 (2018-05-06) aarch64 GNU/Linux
udp-fragmentation-offload is remove by the kernel. ethtool should remvoe it. related patch link: http://patchwork.ozlabs.org/patch/814796/ debian ethtool doesn't remove udp-fragmentation-offload. When setting tso, it does can set, but it will output noise msg: # ethtool -K eth0 tso on Cannot get device udp-fragmentation-offload settings: Operation not supported Cannot get device udp-fragmentation-offload settings: Operation not supported # ethtool -k eth0 Features for eth0: Cannot get device udp-fragmentation-offload settings: Operation not supported ..... tcp-segmentation-offload: on tx-tcp-segmentation: on tx-tcp-ecn-segmentation: off [fixed] tx-tcp-mangleid-segmentation: on tx-tcp6-segmentation: on ...... # ethtool -K eth0 tso off Cannot get device udp-fragmentation-offload settings: Operation not supported Cannot get device udp-fragmentation-offload settings: Operation not supported # ethtool -k eth0 Features for eth0: Cannot get device udp-fragmentation-offload settings: Operation not supported ..... tcp-segmentation-offload: off tx-tcp-segmentation: off tx-tcp-ecn-segmentation: off [fixed] tx-tcp-mangleid-segmentation: off tx-tcp6-segmentation: off ....
