Re: [PATCH v5 12/15] scsi: ufs: tune UniPro parameters to optimize hibern8 exit time

[Hannes Reinecke]

On 02/28/2016 09:32 PM, Yaniv Gardi wrote:
> Optimal values of local UniPro parameters like PA_Hibern8Time &
> PA_TActivate can help reduce the hibern8 exit latency. If both host and
> device supports UniPro ver1.6 or later, these parameters will be
> automatically tuned during link startup itself. But if either host or
> device doesn't support UniPro ver 1.6 or later, we have to manually
> tune them. But to keep manual tuning logic simple, we will only do
> manual tuning if local unipro version doesn't support ver1.6 or later.
> 
> Signed-off-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>
> Signed-off-by: Yaniv Gardi <ygardi@xxxxxxxxxxxxxx>
> 
> ---
>  drivers/scsi/ufs/ufshcd.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++
>  drivers/scsi/ufs/ufshcd.h |   1 +
>  drivers/scsi/ufs/ufshci.h |   2 +
>  drivers/scsi/ufs/unipro.h |  21 +++++++++
>  4 files changed, 142 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
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