This reverts commit dec6b678bba05624335c87b73dc160b54d845cbd.
This default for TXCSUM and RXCSUM should be used and a user should
turn on TXCSUM and RXCSUM.
This reverts commit 54fb9f01f86286ecea3093f6f524afec86d6313f.
This change adds white space changes. A better solution is to revert
the original change.
The hardware support does not seem to work with qemu. The support can be
enabled with ifconfig or via ioctl on real hardware to get the
performance boost.