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iwlwifi: mvm: enable PM always in unassociated mode

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In unassociated BSS STA mode FW verifies both power save and power
management flags to decide on switching power off. The driver currently
sets power management flag according to mac80211 decision. As result, in
unassociated mode power management flag is down and power consumption is
high. Change power management enablement. When unassociated in BPS and
LP power save modes enable power management regardless of mac80211
decision. Rely on mac80211 decision if associated. Add power management
state update during associated/disassociated modes transitions.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Alexander Bondar 2013-05-27 13:49:03 +03:00 committed by Johannes Berg
parent 4bf881f5d5
commit 5ec42ecf49
2 changed files with 5 additions and 0 deletions
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3
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View file

@ -763,6 +763,9 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
if (ret)
IWL_ERR(mvm, "failed to update quotas\n");
}
ret = iwl_mvm_power_update_mode(mvm, vif);
if (ret)
IWL_ERR(mvm, "failed to update power mode\n");
} else if (changes & BSS_CHANGED_DTIM_PERIOD) {
/*
* We received a beacon _after_ association so

2
drivers/net/wireless/iwlwifi/mvm/power.c
View file

@ -168,6 +168,8 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
return;
cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK);
if (!vif->bss_conf.assoc)
cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK);
#ifdef CONFIG_IWLWIFI_DEBUGFS
if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_DISABLE_POWER_OFF &&