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iwlwifi: mvm: Alter passive scan fragmentation parameters in case of multi-MAC

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Make passive scan fragmentation depends on the number of active
interfaces. In case of single-MAC, make passive scan less fragmented.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Haim Dreyfuss 2014-12-02 11:03:16 +02:00 committed by Emmanuel Grumbach
parent ff29862464
commit c3f8d0a3af
1 changed files with 10 additions and 6 deletions
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16
drivers/net/wireless/iwlwifi/mvm/scan.c
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@ -284,11 +284,11 @@ static void iwl_mvm_scan_condition_iterator(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
bool *global_bound = data;
int *global_cnt = data;
if (vif->type != NL80211_IFTYPE_P2P_DEVICE && mvmvif->phy_ctxt &&
mvmvif->phy_ctxt->id < MAX_PHYS)
*global_bound = true;
*global_cnt += 1;
}
static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
@ -296,16 +296,16 @@ static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
int n_ssids, u32 flags,
struct iwl_mvm_scan_params *params)
{
bool global_bound = false;
int global_cnt = 0;
enum ieee80211_band band;
u8 frag_passive_dwell = 0;
ieee80211_iterate_active_interfaces_atomic(mvm->hw,
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_scan_condition_iterator,
&global_bound);
&global_cnt);
if (!global_bound)
if (!global_cnt)
goto not_bound;
params->suspend_time = 30;
@ -316,7 +316,11 @@ static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm,
IWL_UCODE_TLV_API_FRAGMENTED_SCAN) {
params->suspend_time = 105;
params->max_out_time = 70;
frag_passive_dwell = 20;
/*
* If there is more than one active interface make
* passive scan more fragmented.
*/
frag_passive_dwell = (global_cnt < 2) ? 40 : 20;
} else {
params->suspend_time = 120;
params->max_out_time = 120;