Promiscuous mode is enabled when wlan interface is added to
bridge. ath10k creates a monitor mode when promiscuous mode
is enabled. When monitor vdev is runing along with other
vdev(s) there is a huge number of interrupts generated
especially in noisy condition. Fix this by not enabling
promiscuous(monitor) mode when already a vdev is running.
This does not change the support of virtual interface of
type monitor along with other vdevs.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath10k/mac.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 3b5aaa3..66cc0a8 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -969,6 +969,15 @@ static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
ar->num_started_vdevs++;
ath10k_recalc_radar_detection(ar);
+ if (ar->filter_flags & FIF_PROMISC_IN_BSS) {
+ ar->filter_flags &= ~FIF_PROMISC_IN_BSS;
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac disabling promiscuous mode because vdev is started\n");
+ ret = ath10k_monitor_recalc(ar);
+ if (ret)
+ ath10k_vdev_stop(arvif);
+ }
+
return ret;
}
@@ -3476,6 +3485,13 @@ static void ath10k_configure_filter(struct ieee80211_hw *hw,
changed_flags &= SUPPORTED_FILTERS;
*total_flags &= SUPPORTED_FILTERS;
+ if (*total_flags & FIF_PROMISC_IN_BSS) {
+ if (ar->num_started_vdevs) {
+ ath10k_dbg(ar, ATH10K_DBG_MAC,
+ "mac does not enable promiscuous mode when already a vdev is running\n");
+ *total_flags &= ~FIF_PROMISC_IN_BSS;
+ }
+ }
ar->filter_flags = *total_flags;
ret = ath10k_monitor_recalc(ar);
--
1.7.9.5
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