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iwlwifi: mvm: extend time event duration

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Before authentication, we start a time event during
which we wait for a beacon in order to sync our timers.
If we didn't hear the beacon during this time - we abandon
the connection. However, in congested environment, it was
observed we might not hear beacons in that time slot.
Extend the time event to give the connection a better chance.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Sara Sharon 2016-02-02 11:55:53 +02:00 committed by Emmanuel Grumbach
parent 30d915c2ec
commit 7c70fee5ae
2 changed files with 3 additions and 5 deletions
drivers/net/wireless/intel/iwlwifi/mvm
mac80211.ctime-event.h

6
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
View File

@ -2556,10 +2556,8 @@ static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
200 + vif->bss_conf.beacon_int);
u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
100 + vif->bss_conf.beacon_int);
u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
if (WARN_ON_ONCE(vif->bss_conf.assoc))
return;

2
drivers/net/wireless/intel/iwlwifi/mvm/time-event.h
View File

@ -115,7 +115,7 @@
* needed by the driver.
*/
#define IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS 500
#define IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS 600
#define IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS 400
/**