mwifiex: toggle carrier state in start_ap/stop_ap.

In uap mode the carrier is not enabled until after the first STA joins.
The carrier triggers the bridge to start its state machine, and if STP
is enabled, it takes 4 seconds as it transitions from disabled to
forwarding. During this time the bridge drops all traffic, and the EAPOL
handshake times out after 3 seconds, preventing stations from joining.

Follow the logic used in mac80211 and start the carrier in start_ap
and disable it in stop_ap. This has a nice benefit of allowing the
first station connection time to be reduced by up to 75% when STP is
in use.

Signed-off-by: Martin Faltesek <mfaltesek@google.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index b7ac45f324d7..4073116e6e9f 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -1821,6 +1821,10 @@ static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 		return -1;
 	}
 
+	if (netif_carrier_ok(priv->netdev))
+		netif_carrier_off(priv->netdev);
+	mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
+
 	return 0;
 }
 
@@ -1925,6 +1929,10 @@ static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
 	if (mwifiex_set_mgmt_ies(priv, &params->beacon))
 		return -1;
 
+	if (!netif_carrier_ok(priv->netdev))
+		netif_carrier_on(priv->netdev);
+	mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
+
 	memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
 	kfree(bss_cfg);
 	return 0;