Re: [PATCH 14/22] qla2xxx: Add interrupt polling mechanism

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On 12/14/2016 10:06 PM, Christoph Hellwig wrote:
> On Tue, Dec 06, 2016 at 12:30:43PM -0800, Himanshu Madhani wrote:
>> From: Quinn Tran <quinn.tran@xxxxxxxxxx>
>>
>> This patch adds capability to poll for an interrupt, If hardware
>> does not generate any interrupt for 2 seconds.
> 
> This description sounds like the hardware might be buggy and not
> generate interrupts, in which case 2 seconds is a very long time.
> 
> Can you explain the intention a bit better?

In addition to Christoph's question: is this a workaround for a hardware
bug or for a firmware bug? If it is a workaround for a firmware bug,
since the qla2xxx firmware can be upgraded, why is an interrupt polling
mechanism added to the kernel driver instead of fixing the firmware?

Bart.
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