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| author | Sara Sharon <sara.sharon@intel.com> | 2017-01-31 10:39:44 +0200 |
|---|---|---|
| committer | Luca Coelho <luciano.coelho@intel.com> | 2018-04-20 10:57:16 +0300 |
| commit | b66b5817a0ce0e5653f4f60ab583c19cb5dab546 (patch) | |
| tree | 089fd6153b7063b23343ec6d203a022cbefedfa1 /drivers/net/wireless/intel/iwlwifi/mvm/utils.c | |
| parent | b0ffe455bc5bbdbcf7837274d2476f5597767237 (diff) | |
| download | linux-b66b5817a0ce0e5653f4f60ab583c19cb5dab546.tar.gz linux-b66b5817a0ce0e5653f4f60ab583c19cb5dab546.tar.bz2 linux-b66b5817a0ce0e5653f4f60ab583c19cb5dab546.zip | |
iwlwifi: mvm: detect low latency and traffic load per band
Detect low latency and traffic load per band. Add support for
deciding on scan type and timings per band.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/utils.c')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/utils.c | 66 |
1 files changed, 58 insertions, 8 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c index ea0332a2389e..815d2d141fd8 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c @@ -1074,23 +1074,48 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, return iwl_mvm_power_update_mac(mvm); } +struct iwl_mvm_low_latency_iter { + bool result; + bool result_per_band[NUM_NL80211_BANDS]; +}; + static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) { - bool *result = _data; + struct iwl_mvm_low_latency_iter *result = _data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + enum nl80211_band band; + + if (iwl_mvm_vif_low_latency(mvmvif)) { + result->result = true; + + if (!mvmvif->phy_ctxt) + return; - if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) - *result = true; + band = mvmvif->phy_ctxt->channel->band; + result->result_per_band[band] = true; + } } bool iwl_mvm_low_latency(struct iwl_mvm *mvm) { - bool result = false; + struct iwl_mvm_low_latency_iter data = {}; ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_ll_iter, &result); + iwl_mvm_ll_iter, &data); - return result; + return data.result; +} + +bool iwl_mvm_low_latency_band(struct iwl_mvm *mvm, enum nl80211_band band) +{ + struct iwl_mvm_low_latency_iter data = {}; + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_ll_iter, &data); + + return data.result_per_band[band]; } struct iwl_bss_iter_data { @@ -1599,6 +1624,18 @@ static void iwl_mvm_check_uapsd_agg_expected_tpt(struct iwl_mvm *mvm, iwl_mvm_uapsd_agg_disconnect_iter, &mac); } +static void iwl_mvm_tcm_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + u32 *band = _data; + + if (!mvmvif->phy_ctxt) + return; + + band[mvmvif->id] = mvmvif->phy_ctxt->channel->band; +} + static unsigned long iwl_mvm_calc_tcm_stats(struct iwl_mvm *mvm, unsigned long ts, bool handle_uapsd) @@ -1607,9 +1644,11 @@ static unsigned long iwl_mvm_calc_tcm_stats(struct iwl_mvm *mvm, unsigned int uapsd_elapsed = jiffies_to_msecs(ts - mvm->tcm.uapsd_nonagg_ts); u32 total_airtime = 0; - int ac, mac; + u32 band_airtime[NUM_NL80211_BANDS] = {0}; + u32 band[NUM_MAC_INDEX_DRIVER] = {0}; + int ac, mac, i; bool low_latency = false; - enum iwl_mvm_traffic_load load; + enum iwl_mvm_traffic_load load, band_load; bool handle_ll = time_after(ts, mvm->tcm.ll_ts + MVM_LL_PERIOD); if (handle_ll) @@ -1619,12 +1658,18 @@ static unsigned long iwl_mvm_calc_tcm_stats(struct iwl_mvm *mvm, mvm->tcm.result.elapsed = elapsed; + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_tcm_iterator, + &band); + for (mac = 0; mac < NUM_MAC_INDEX_DRIVER; mac++) { struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[mac]; u32 vo_vi_pkts = 0; u32 airtime = mdata->rx.airtime + mdata->tx.airtime; total_airtime += airtime; + band_airtime[band[mac]] += airtime; load = iwl_mvm_tcm_load(mvm, airtime, elapsed); mvm->tcm.result.change[mac] = load != mvm->tcm.result.load[mac]; @@ -1662,6 +1707,11 @@ static unsigned long iwl_mvm_calc_tcm_stats(struct iwl_mvm *mvm, mvm->tcm.result.global_change = load != mvm->tcm.result.global_load; mvm->tcm.result.global_load = load; + for (i = 0; i < NUM_NL80211_BANDS; i++) { + band_load = iwl_mvm_tcm_load(mvm, band_airtime[i], elapsed); + mvm->tcm.result.band_load[i] = band_load; + } + /* * If the current load isn't low we need to force re-evaluation * in the TCM period, so that we can return to low load if there |