svn commit: r279236 - head/sys/netinet

[Joerg Sonnenberger]

On Tue, Feb 24, 2015 at 11:59:02AM -0700, Ian Lepore wrote:
> ETHER_ALIGN is wonderful... if you're on a platform that can DMA to an
> arbitrary boundary.

Isn't it generally more a case of "if the device's DMA engine isn't
extremely bad designed"? There is a strong correlation between devices
not supporting DMA to arbitrary locations and devices requiring a single
data segment. Heck, from a design point of few there is no justification
for not supporting skipping a few byte at the start of the receive. The
device can easily just add two bytes of noise to make it double word
aligned if necessary... VIA Rhine forever!

Joerg