From: Luciano Coelho <luciano.coe...@intel.com>
Disable PS when pre_channel_switch is called and add the
post_channel_switch operation to re-enable PS when the channel switch
is completed.
Signed-off-by: Luciano Coelho <luciano.coe...@intel.com>
---
drivers/net/wireless/iwlwifi/mvm/mac80211.c | 28 +++++++++++++++++++++++++---
1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 9cf90af..221f823 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -3039,7 +3039,7 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw,
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
struct ieee80211_vif *csa_vif;
- struct iwl_mvm_vif *mvmvif;
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
int ret;
mutex_lock(&mvm->mutex);
@@ -3060,7 +3060,6 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw,
rcu_assign_pointer(mvm->csa_vif, vif);
- mvmvif = iwl_mvm_vif_from_mac80211(vif);
if (WARN_ONCE(mvmvif->csa_countdown,
"Previous CSA countdown didn't complete")) {
ret = -EBUSY;
@@ -3072,7 +3071,11 @@ static int iwl_mvm_pre_channel_switch(struct
ieee80211_hw *hw,
break;
}
- ret = 0;
+ mvmvif->ps_disabled = true;
+
+ ret = iwl_mvm_power_update_ps(mvm);
+ if (ret)
+ goto out_unlock;
out_unlock:
mutex_unlock(&mvm->mutex);
@@ -3080,6 +3083,24 @@ out_unlock:
return ret;
}
+static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+ int ret;
+
+ mutex_lock(&mvm->mutex);
+
+ mvmvif->ps_disabled = false;
+
+ ret = iwl_mvm_power_update_ps(mvm);
+
+ mutex_unlock(&mvm->mutex);
+
+ return ret;
+}
+
static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, u32 queues, bool drop)
{
@@ -3154,6 +3175,7 @@ const struct ieee80211_ops iwl_mvm_hw_ops = {
.set_tim = iwl_mvm_set_tim,
.pre_channel_switch = iwl_mvm_pre_channel_switch,
+ .post_channel_switch = iwl_mvm_post_channel_switch,
CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
--
2.1.1
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