From: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
If a vif is in low latency mode, it should be in primary
channel.
Also tell BT Coex about the change when a vif enters or
exits low latency mode.
Reviewed-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 29 +++++++++++++++++++++++-----
drivers/net/wireless/iwlwifi/mvm/utils.c | 3 +++
2 files changed, 27 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index b1a572e..d38c4ae 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -542,6 +542,7 @@ struct iwl_bt_iterator_data {
bool reduced_tx_power;
struct ieee80211_chanctx_conf *primary;
struct ieee80211_chanctx_conf *secondary;
+ bool primary_ll;
};
static inline
@@ -590,7 +591,14 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
return;
}
- /* SoftAP / GO will always be primary */
+ /* low latency is always primary */
+ if (iwl_mvm_vif_low_latency(mvmvif)) {
+ data->primary_ll = true;
+
+ data->secondary = data->primary;
+ data->primary = chanctx_conf;
+ }
+
if (vif->type == NL80211_IFTYPE_AP) {
if (!mvmvif->ap_ibss_active)
return;
@@ -601,9 +609,17 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
if (chanctx_conf == data->primary)
return;
- /* downgrade the current primary no matter what its type is */
- data->secondary = data->primary;
- data->primary = chanctx_conf;
+ if (!data->primary_ll) {
+ /*
+ * downgrade the current primary no matter what its
+ * type is.
+ */
+ data->secondary = data->primary;
+ data->primary = chanctx_conf;
+ } else {
+ /* there is low latency vif - we will be secondary */
+ data->secondary = chanctx_conf;
+ }
return;
}
@@ -613,7 +629,10 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
if (!vif->bss_conf.assoc)
return;
- /* STA / P2P Client, try to be primary if first vif */
+ /*
+ * STA / P2P Client, try to be primary if first vif. If we are in low
+ * latency mode, we are already in primary and just don't do much
+ */
if (!data->primary || data->primary == chanctx_conf)
data->primary = chanctx_conf;
else if (!data->secondary)
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 790da1b..c7ee2f3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -550,5 +550,8 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
res = iwl_mvm_update_quotas(mvm, NULL);
if (res)
return res;
+
+ iwl_mvm_bt_coex_vif_change(mvm);
+
return iwl_mvm_power_update_mode(mvm, vif);
}
--
1.7.9.5
--
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