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SubjectRe: [PATCH 1/3] Make the IDE DMA timeout modifiable
Mark Lord wrote:

>>>> O> >> BTW, why the timeout is so damn long? 2*WAIT_CMD is 20
>>>> secs, and if DMA is not complete or interrupt pending, it may wait
>>>> 10 more secs...

> ..

>>> I've lost the original question from this thread, but the idea of the

>> The original question concerned specifically the DMA command
>> timeout which is twice more than the usual one, WAIT_CMD (10 seconds).

>>> longish
>>> timeouts was that drive *may* be spun down ("standby"), and thus have
>>> to spin
>>> up again to complete media commands. Back then, drives were much
>>> slower at
>>> spinning up than nowadays, and the ATA spec says to allow up to 30
>>> seconds.

>> Well, that doesn't explain the DMA case.

> When a drive is in standby, we don't send it anything special to wake up.

Wait, aren't we sending IDLE on resume step 2 -- looking at
ide-io.cide_start_power_step()?

> Cheers

MBR, Sergei
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