rt2x00: Implement tx mpdu aggregation
In order to implement tx mpdu aggregation we only have to implement
the ampdu_action callback such that mac80211 allows negotiation of
blockack sessions.
The hardware will handle everything on its own as long as the ampdu
flag in the TXWI struct is set up correctly and we translate the tx
status correctly.
For now, refuse requests to start rx aggregation.
Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 14c361a..14ff706 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2499,7 +2499,8 @@
IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_SUPPORTS_PS |
- IEEE80211_HW_PS_NULLFUNC_STACK;
+ IEEE80211_HW_PS_NULLFUNC_STACK |
+ IEEE80211_HW_AMPDU_AGGREGATION;
SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
@@ -2751,6 +2752,36 @@
return tsf;
}
+static int rt2800_ampdu_action(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta,
+ u16 tid, u16 *ssn)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ int ret = 0;
+
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ case IEEE80211_AMPDU_RX_STOP:
+ /* we don't support RX aggregation yet */
+ ret = -ENOTSUPP;
+ break;
+ case IEEE80211_AMPDU_TX_START:
+ ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+ case IEEE80211_AMPDU_TX_STOP:
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ break;
+ default:
+ WARNING(rt2x00dev, "Unknown AMPDU action\n");
+ }
+
+ return ret;
+}
+
const struct ieee80211_ops rt2800_mac80211_ops = {
.tx = rt2x00mac_tx,
.start = rt2x00mac_start,
@@ -2768,6 +2799,7 @@
.conf_tx = rt2800_conf_tx,
.get_tsf = rt2800_get_tsf,
.rfkill_poll = rt2x00mac_rfkill_poll,
+ .ampdu_action = rt2800_ampdu_action,
};
EXPORT_SYMBOL_GPL(rt2800_mac80211_ops);