diff options
| author | Alexander Bondar <alexander.bondar@intel.com> | 2013-08-04 17:52:23 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-08-16 12:13:28 +0200 |
| commit | 89716344806bd49d213ad5960661e8c2d38c4982 (patch) | |
| tree | 75bad954b4fa589bf1d328a13419190fade03003 /drivers/net/wireless/iwlwifi/mvm/power.c | |
| parent | a20fd398666dbf5cdee3fe97722350cc10619c84 (diff) | |
iwlwifi: mvm: Add PBW snoozing enablement
The Performance Based Window snooze mechanism is based on uAPSD and is
used in low-medium traffic scenarios, in order to provide better power
performance while insuring low latency and jitter for the incoming traffic.
This patch enables PBW snoozing in case uAPSD is enabled and all ACs are
uAPSD trigger and delivery enabled.
Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/power.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/power.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c index a5529b85de8..21407a353a3 100644 --- a/drivers/net/wireless/iwlwifi/mvm/power.c +++ b/drivers/net/wireless/iwlwifi/mvm/power.c @@ -301,6 +301,20 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT); cmd->tx_data_timeout_uapsd = cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT); + + if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) | + BIT(IEEE80211_AC_VI) | + BIT(IEEE80211_AC_BE) | + BIT(IEEE80211_AC_BK))) { + cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); + cmd->snooze_interval = + cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL); + cmd->snooze_window = + (mvm->cur_ucode == IWL_UCODE_WOWLAN) ? + cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) : + cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW); + } + cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP; cmd->heavy_tx_thld_packets = IWL_MVM_PS_HEAVY_TX_THLD_PACKETS; @@ -340,6 +354,14 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, } if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD) cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold; + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) { + if (mvmvif->dbgfs_pm.snooze_ena) + cmd->flags |= + cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); + else + cmd->flags &= + cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK); + } #endif /* CONFIG_IWLWIFI_DEBUGFS */ } @@ -475,6 +497,19 @@ static int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm, pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n", cmd.heavy_rx_thld_percentage); + pos += + scnprintf(buf+pos, bufsz-pos, "snooze_enable = %d\n", + (cmd.flags & + cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) ? + 1 : 0); + } + if (cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) { + pos += scnprintf(buf+pos, bufsz-pos, + "snooze_interval = %d\n", + cmd.snooze_interval); + pos += scnprintf(buf+pos, bufsz-pos, + "snooze_window = %d\n", + cmd.snooze_window); } } return pos; |