Re: [PATCH 2.6] natsemi.c NAPI

[Robert Olsson <Robert.Olsson@xxxxxxxxxxx>]

 > I think this overall problem can be solved if there was some per-device
 > variable that saves the IntrStatus until the NAPI callback gets
 > scheduled. What do you think?  This wouldn't even need some locking,
 > since interrupts would be disabled before the field is updated, and not
 > re-enabled before the field is read by the NAPI callback?
 > 
 > I was surprised that this solution is not suggested in the NAPI-HOWTO.txt, 
 > so I though there must be an error in my proposal...
 > 
 > By using such a scheme, isn't it also possible to only offload RX into
 > the NAPI callback with clear-on-read devices?
 > 

 e1000 used such technique before.If a remember correctly IntrStatus was
 saved in device priv struct.

 Cheers.
                                                --ro