Re: [PATCH 3/3] iwlwifi: avoid too frequent recover from statistics

["Guy, Wey-Yi" <wey-yi.w.guy@intel.com>]

Hi Stanislaw,

On Fri, 2011-03-04 at 08:51 -0800, Stanislaw Gruszka wrote:
> Usually H/W generate statistics notify once per about 100ms, but
> sometimes we can receive notify in shorter time, even 2 ms.
> 
> This can be problem for plcp health and ack health checking.
> 
> I.e. with 2 plcp errors happens randomly in 2 ms duration, we
> exceed plcp delta threshold equal to 100 (2*100/2).
> 
> Also checking ack's in short time, can results not necessary false
> positive and firmware reset, for example when channel is noised and
> we do not receive ACKs frames or when remote device does not send
> ACKs at the moment.
> 
> Patch change code to do statistic check and possible recovery only
> if 99ms elapsed from last check. Forced delay should assure we have
> good statistic data to estimate hardware state.
> 
> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

this plcp and ack count getting really complicate and not sure really
worth doing it? but ok for now

Wey