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SubjectRe: Linux-Kernel Archive: ATA overlap/queuing support ?

Is there support in linux for ATA overlap/queuing ?

It should ( among other things ) improve concurent performance
of two devices on the same channel.

--
David Balazic
--------------

> http://www.uwsg.indiana.edu/hypermail/linux/kernel/0105.2/0022.html

No, queuing is broken and requires a special host to do the auto-polling.
Right now only HighPoint has a host that will perform that operation.

Also it requires TFAM and that will not be include until 2.5.

ATA-overlap or ATAPI-overlap? The later is known as DSC based on
SFF-8020/8070/8090, I have forgotten where it is located but I have the
docs, and it is supported in ide-floppy and ide-tape.

Andre Hedrick
Linux ATA Development
ASL Kernel Development
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