Am 07.10.2016 um 16:57 schrieb neilhard...@gmail.com:
> 
> Presumably through the CPU.

I think I’ve still got a bunch of NE2000 and early RealTekNICs somewhere in the 
cellar – how much do you want to offer?

> So I see no reason you couldn’t get Ethernet + WiFi chips without DMA.

I do; those doing IO with CPU IO transfers have died out in the beginning of 
the 100 MBit age.

> But certainly, I think there are devices out there without DMA. I think you 
> just need to search the market for a Ethernet/WiFi that supports non-DMA.

Please post the result of your research – if possible including the sustainable 
bandwidth with these devices.


Achim

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