Re: [Lsf-pc] [LSF/MM TOPIC] Integrated Unit Attention handling

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On 12/16/14 16:30, Hannes Reinecke wrote:
> On 12/16/2014 09:32 AM, Christoph Hellwig wrote:
>> Sounds like a good topic, altough I hope we'll see considerable
>> progress before LSF on this item..
>
> Full integration requires a change of the SCSI device model;
> currently struct scsi_device has a fixed type and inquiry data, so
> rescan is essentially a no-op.
> So the current model requires the complete removal of the device and
> a rescan on the host.
> Doing that from within the SCSI stack will open quite some
> interesting race conditions, let alone interesting userspace
> interactions.
> Alternatively we can change the model to allow for a change of the
> inquiry data, but that should be discussed.
> 
> And then there is the Power-On/Reset handling, which probably would
> warrant a discussion on its own ...

Hello Hannes and Christoph,

If any of the topics raised by Hannes have not been resolved before the
LSF/MM starts I'm definitely interested in attending this discussion.

Bart.
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