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SubjectRe: ata link not reset properly

Robert Hancock wrote:

>> On 25.06.2010 17:19, Tejun Heo wrote:
>>> Patch attached, but please see below.

>> Cheers, I will give it a try and provide feedback if "it" happens again.

>>> Is it PATA?

>> Yes. This chipset doesn't have SATA, only PATA.

> Ahh, ok, it's not sata_nv at all then, it's pata_amd. On the same chip,
> totally different controller though.

> PATA doesn't normally use hard-resets as a means of error recovery -
> that would mean hitting the RESET line, which I don't think most
> controllers can do on software command (it usually only gets asserted on
> power up or hitting the reset button), unlike on SATA where there's a
> defined way to trigger a COMRESET which is mostly equivalent. Also, that
> resets both devices on the channel, unlike soft reset which is specific
> to one device.

PATA soft reset affects both devices too. Unless you mean ATAPI Device
Reset command.

MBR, Sergei

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