From: Ben Hutchings <redacted>
Date: Thu, 22 May 2008 19:14:21 +0100

David Miller wrote:

quoted

For now, yes.  The transmit path itself in the generic network
device layer is where the serialization comes from.

This is true in the general case, but can be substantially mitigated
by segmentation offload.  Unfortunately GSO doesn't help much as the
overhead of allocating the extra skbs is fairly high.

But GSO still does help a lot for chips that lack hw TSO support,
such as NIU, therefore sw GSO support in the NIU driver was pretty
high on my todo list.