Re: [PATCH 1 21/25] hpsa: disable report lun data caching

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On 10/28/2015 11:06 PM, Don Brace wrote:
> From: Scott Teel <scott.teel@xxxxxxxx>
> 
> When external target arrays are present, disable the firmware's
> normal behavior of returning a cached copy of the report lun data,
> and force it to collect new data each time we request a report luns.
> 
> This is necessary for external arrays, since there may be no
> reliable signal from the external array to the smart array when
> lun configuration changes, and thus when driver requests
> report luns, it may be stale data.
> 
> Use diag options to turn off RPL data caching.
> 
> Reviewed-by: Scott Teel <scott.teel@xxxxxxxx>
> Reviewed-by: Justin Lindley <justin.lindley@xxxxxxxx>
> Reviewed-by: Kevin Barnett <kevin.barnett@xxxxxxxx>
> Signed-off-by: Don Brace <don.brace@xxxxxxxx>
> ---
>  drivers/scsi/hpsa.c     |   86 +++++++++++++++++++++++++++++++++++++++++++++++
>  drivers/scsi/hpsa_cmd.h |    3 ++
>  2 files changed, 89 insertions(+)
> 
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		      zSeries & Storage
hare@xxxxxxx			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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