Software router state of the art
fw at deneb.enyo.de
Sat Jul 26 15:29:56 CDT 2008
* William Herrin:
> The pro/1000 does not need to generate an interrupt in order to start
> a DMA transfer? Can you refer me to some documents which explain in
> detail how a card on the bus sets up a DMA transfer?
Busmaster DMA does not generate an interrupt on the host CPU. The
interrupt is used to trigger processing on the host CPU; it can be
deferred until several frames have been written.
More information about the NANOG