Re: [PATCH 5/6] hisi_sas: add hisi_sas_slave_configure()

[Hannes Reinecke]

On 02/16/2016 01:22 PM, John Garry wrote:
> In high-datarate aging tests, it is found that
> the SCSI framework can periodically
> issue lu resets to the device. This is because scsi
> commands begin to timeout. It is found that TASK SET
> FULL may be returned many times for the same command,
> causing the timeouts.
> To overcome this, the queue depth for the device needs
> to be reduced to 64 (from 256, set in
> sas_slave_configure()).
> 
Hmm. TASK SET FULL should cause the queue depth to be reduced
automatically, no?

Cheers,

Hannes
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Dr. Hannes Reinecke		   Teamlead Storage & Networking
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