[ofa-general] Re: [PATCH 0/10 REV5] Implement skb batching and support in IPoIB/E1000

[David Miller]

From: jamal <hadi at cyberus.ca>
Date: Sun, 16 Sep 2007 22:14:21 -0400

> I still think this work - despite my vested interest - needs more
> scrutiny from a performance perspective.

Absolutely.

There are tertiary issues I'm personally interested in, for example
how well this stuff works when we enable software GSO on a non-TSO
capable card.

In such a case the GSO segment should be split right before we hit the
driver and then all the sub-segments of the original GSO frame batched
in one shot down to the device driver.

In this way you'll get a large chunk of the benefit of TSO without
explicit hardware support for the feature.

There are several cards (some even 10GB) that will benefit immensely
from this.