ath9k: handle low buffer space for virtual wiphys

[mv-sheeva.git] / drivers / net / wireless / ath / ath9k / virtual.c

diff --git a/drivers/net/wireless/ath/ath9k/virtual.c b/drivers/net/wireless/ath/ath9k/virtual.c
index 69a871ba051f694dedec209b9dfdbe17c8306796..0a36b572294c4e8b446e46d0154eb2b43c3ee250 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/virtual.c
+++ b/drivers/net/wireless/ath/ath9k/virtual.c
@@ -697,3 +697,55 @@ void ath9k_set_wiphy_idle(struct ath_wiphy *aphy, bool idle)
                  wiphy_name(aphy->hw->wiphy),
                  idle ? "idle" : "not-idle");
 }
+/* Only bother starting a queue on an active virtual wiphy */
+void ath_mac80211_start_queue(struct ath_softc *sc, u16 skb_queue)
+{
+       struct ieee80211_hw *hw = sc->pri_wiphy->hw;
+       unsigned int i;
+
+       spin_lock_bh(&sc->wiphy_lock);
+
+       /* Start the primary wiphy */
+       if (sc->pri_wiphy->state == ATH_WIPHY_ACTIVE) {
+               ieee80211_wake_queue(hw, skb_queue);
+               goto unlock;
+       }
+
+       /* Now start the secondary wiphy queues */
+       for (i = 0; i < sc->num_sec_wiphy; i++) {
+               struct ath_wiphy *aphy = sc->sec_wiphy[i];
+               if (!aphy)
+                       continue;
+               if (aphy->state != ATH_WIPHY_ACTIVE)
+                       continue;
+
+               hw = aphy->hw;
+               ieee80211_wake_queue(hw, skb_queue);
+               break;
+       }
+
+unlock:
+       spin_unlock_bh(&sc->wiphy_lock);
+}
+
+/* Go ahead and propagate information to all virtual wiphys, it won't hurt */
+void ath_mac80211_stop_queue(struct ath_softc *sc, u16 skb_queue)
+{
+       struct ieee80211_hw *hw = sc->pri_wiphy->hw;
+       unsigned int i;
+
+       spin_lock_bh(&sc->wiphy_lock);
+
+       /* Stop the primary wiphy */
+       ieee80211_stop_queue(hw, skb_queue);
+
+       /* Now stop the secondary wiphy queues */
+       for (i = 0; i < sc->num_sec_wiphy; i++) {
+               struct ath_wiphy *aphy = sc->sec_wiphy[i];
+               if (!aphy)
+                       continue;
+               hw = aphy->hw;
+               ieee80211_stop_queue(hw, skb_queue);
+       }
+       spin_unlock_bh(&sc->wiphy_lock);
+}