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>

2 files changed, 8 insertions, 7 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;
diff --git a/drivers/net/wireless/mwifiex/uap_event.c b/drivers/net/wireless/mwifiex/uap_event.c
index 078834cf1251..86ff54296f39 100644
--- a/drivers/net/wireless/mwifiex/uap_event.c
+++ b/drivers/net/wireless/mwifiex/uap_event.c
@@ -179,19 +179,12 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv)
         case EVENT_UAP_BSS_IDLE:
                 priv->media_connected = false;
                 priv->port_open = false;
-                if (netif_carrier_ok(priv->netdev))
-                        netif_carrier_off(priv->netdev);
-                mwifiex_stop_net_dev_queue(priv->netdev, adapter);
-
                 mwifiex_clean_txrx(priv);
                 mwifiex_del_all_sta_list(priv);
                 break;
         case EVENT_UAP_BSS_ACTIVE:
                 priv->media_connected = true;
                 priv->port_open = true;
-                if (!netif_carrier_ok(priv->netdev))
-                        netif_carrier_on(priv->netdev);
-                mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
                 break;
         case EVENT_UAP_BSS_START:
                 mwifiex_dbg(adapter, EVENT,