tree f3b085549d06ee7934d2856a2b82b55374bf893b
parent e53839eb9882c99d3781eab0fe1b2d4369a6a2cc
author Eyal Shapira <eyal@wizery.com> 1396797202 +0300
committer Emmanuel Grumbach <emmanuel.grumbach@intel.com> 1397397064 +0300

iwlwifi: mvm: rs: reinit rs if no tx for a long time

After being idle for a long time (>5sec) the rs statistics
will be stale so we prefer to reset rs and start from legacy
rates again. This gives better results when the attenuation
increased signficantly (e.g. we got further from the AP) and
after a while we start Tx
Note that the first Tx after the idle period will still go out
in the old modulation and rate but this seemed a simpler approach
compared to adding a timer or modifying mac80211 for this.
The negative impact is negligble as we'll recover quickly.

Cc: <stable@vger.kernel.org> [3.14]
Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>