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iwlwifi: mvm: add option that allows a vif to disable PS

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We need to disable PS when a monitor vif is active or, in the future,
when a channel switch is happening.  Add a boolean to mvmvif that
allows PS to be disabled generically.  Additionally, make the monitor
interface use this new flag when it gets activated.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Luciano Coelho 2014-08-08 19:50:46 +03:00 committed by Emmanuel Grumbach
parent ef9203d23f
commit 2533edcee8
3 changed files with 25 additions and 6 deletions
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4
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View File

@ -2708,7 +2708,10 @@ static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
ret = 0;
goto out;
case NL80211_IFTYPE_STATION:
break;
case NL80211_IFTYPE_MONITOR:
/* always disable PS when a monitor interface is active */
mvmvif->ps_disabled = true;
break;
default:
ret = -EINVAL;
@ -2784,6 +2787,7 @@ static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
goto out;
case NL80211_IFTYPE_MONITOR:
mvmvif->monitor_active = false;
mvmvif->ps_disabled = false;
break;
case NL80211_IFTYPE_AP:
/* This part is triggered only during CSA */

2
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -326,6 +326,7 @@ struct iwl_mvm_vif_bf_data {
* interface should get quota etc.
* @low_latency: indicates that this interface is in low-latency mode
* (VMACLowLatencyMode)
* @ps_disabled: indicates that this interface requires PS to be disabled
* @queue_params: QoS params for this MAC
* @bcast_sta: station used for broadcast packets. Used by the following
* vifs: P2P_DEVICE, GO and AP.
@ -343,6 +344,7 @@ struct iwl_mvm_vif {
bool pm_enabled;
bool monitor_active;
bool low_latency;
bool ps_disabled;
struct iwl_mvm_vif_bf_data bf_data;
u32 ap_beacon_time;

25
drivers/net/wireless/iwlwifi/mvm/power.c
View File

@ -512,6 +512,17 @@ static void iwl_mvm_power_disable_pm_iterator(void *_data, u8* mac,
mvmvif->pm_enabled = false;
}
static void iwl_mvm_power_ps_disabled_iterator(void *_data, u8* mac,
struct ieee80211_vif *vif)
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
bool *disable_ps = _data;
if (mvmvif->phy_ctxt)
if (mvmvif->phy_ctxt->id < MAX_PHYS)
*disable_ps |= mvmvif->ps_disabled;
}
static void iwl_mvm_power_get_vifs_iterator(void *_data, u8 *mac,
struct ieee80211_vif *vif)
{
@ -831,16 +842,18 @@ int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
return ret;
}
static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm,
struct iwl_power_vifs *vifs)
static int iwl_mvm_power_set_ps(struct iwl_mvm *mvm)
{
bool disable_ps;
int ret;
/* disable PS if CAM */
disable_ps = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM);
/* ...or if there is an active monitor vif */
disable_ps |= (vifs->monitor_vif && vifs->monitor_active);
/* ...or if any of the vifs require PS to be off */
ieee80211_iterate_active_interfaces_atomic(mvm->hw,
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_power_ps_disabled_iterator,
&disable_ps);
/* update device power state if it has changed */
if (mvm->ps_disabled != disable_ps) {
@ -889,7 +902,7 @@ int iwl_mvm_power_update_ps(struct iwl_mvm *mvm)
IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_power_get_vifs_iterator, &vifs);
ret = iwl_mvm_power_set_ps(mvm, &vifs);
ret = iwl_mvm_power_set_ps(mvm);
if (ret)
return ret;
@ -912,7 +925,7 @@ int iwl_mvm_power_update_mac(struct iwl_mvm *mvm)
iwl_mvm_power_set_pm(mvm, &vifs);
ret = iwl_mvm_power_set_ps(mvm, &vifs);
ret = iwl_mvm_power_set_ps(mvm);
if (ret)
return ret;