Re: [PATCH] soc: ti: knav_qmss: Use percpu instead atomic for stats counter

[santosh.shilimkar@xxxxxxxxxx]

On 4/11/18 3:28 PM, santosh.shilimkar@xxxxxxxxxx wrote:
> On 4/11/18 12:16 PM, Vasyl Gomonovych wrote:
> > Hwqueue has collect statistics in heavy use queue_pop/queu_push functions
> > for cache efficiency and make push/pop faster use percpu variables.
> > For performance reasons, driver should keep descriptor in software 
> > handler
> > as short as possible and quickly return it back to hardware queue.
> > Descriptors coming into driver from hardware after pop and return back
> > by push to reduce descriptor lifetime in driver collect statistics on 
> > percpu.
> >
> > Signed-off-by: Vasyl Gomonovych <gomonovych@xxxxxxxxx>
> > ---
> This is really good idea. Have you tested this patch ? If not it needs
> to be tested on Keystone SOCs to make sure all works.
Thanks for confirming the tests done with rapidIO offlist. Will queue
this patch for next merge window.

Regards,
Santosh