Holger Kiehl wrote:
> Hello
>
> Is setting this option and CONFIG_NET_DMA usefull even when you do not
> have
> the hardware?
>
> And what hardware is required for this? Is this DMA engine located on
> the network or raid card, or is this something in the chipset? Which
> chipset or cards do have such an engine?
>
> Thanks,
> Holger
I guess the option is completely useless without such hardware.
For now, you need a Intel E5000 chipset (Blackford and co.). It exports
a special PCI device (id 8086:1a38) for DMA. No other device is
supported so far, but some Raid stuff have been proposed recently IIRC.
Brice
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