Hi Jeff,

The nForce MAC has two options for generating tx completion interrupts: 
Either by setting a per-packet flag, or by setting a bit in the irq mask 
(which enables interrupts for all packets). forcedeth tried to use one 
approach for nForce boards and the other approach for nForce 2/3/4.
The attached patch removes the special cases and uses the same approach 
for all nForce versions. The patch also adds extensive debug output that 
should help to identify the tx hang described in the bugzilla.kernel.org 
bugreport 4552.

Signed-Off-By: Manfred Spraul <manfred@colorfullife.com>