Question about mediator ZIII/PCI and dma

[mlehto]

It is been bit unclear for me. If one have Mediator PCI 4000D, does DMA work with ZIII cards as normal ?

Is there been any progress with PCI DMA ? I have itch, that it is most likely impossible to make, but I ask anyway.

Does ZorRam config as ordinary fast mem in OS4.1 ?

Thanks

[ssolie]

Does ZorRam config as ordinary fast mem in OS4.1 ?

No, it can only be used as swap. The memory is far too slow to be used as ordinary fast memory.

[mlehto]

Ok, thanks.

How it is with dma in os4 classic. Is it working only to cyberstorm scsi, or allso to Z3 ?

I have allready two os4 machines, but for some reason I'm planned to get A4000. Should be nice to run OS4 with it

[danbeaver]

OS 4.1 in its current state supports DMA only with the CyberStorm UW SCSI device. Any other card trying to use DMA fails or locks up the system. This is the current paradigm; were a shift to occur, the whole kernel would have to undergo a rewrite -- at least this is what I have gleaned from the forums and the code itself.