Re: [PATCH libata#upstream] sata_promise: fix error decode regression

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On Mon, 09 Apr 2007 16:52:53 +0900, Tejun Heo wrote:
>Mikael Pettersson wrote:
>> Promise ATA ports should always be reset by pdc_reset_port()
>> when errors are detected, but the recent error reason decoding
>> update to sata_promise replaced that reset with a freeze.
>> 
>> This patch changes the error detection to do a reset again.
>> This makes the error decoding update safer, as it now only
>> adds error decoding without changing any other behaviour.
>> 
>> Signed-off-by: Mikael Pettersson <mikpe@xxxxxxxx>
>
>Not necessarily NAK'ing but I think it's better to do things like that
>in EH thread not in the interrupt handler.  Isn't freezing enough in the
>interrupt handler?

You're right that the reset should be in the EH code.
But it isn't right now (the resets done there are generic
ones, not the Promise-specific one the HW really wants),
so the error decoding change caused a regression that
needs to be fixed.

I intend to change the interrupt handler to just freeze and
add a Promise-specific reset to EH in a separate patch.

/Mikael
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