X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fmwl8k.c;h=76b2f9133159079fbc638df64c6d5a9910af8a04;hb=07f6dda1e7ed653c87ed329c99d6ae12ee114d52;hp=f221b95b90b3c2935c67e9c272d5f1c2a89000d4;hpb=896ea17d3da5f44b2625c9cda9874d7dfe447393;p=karo-tx-linux.git

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index f221b95b90b3..76b2f9133159 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -101,6 +101,18 @@ MODULE_PARM_DESC(ap_mode_default,
 #define MWL8K_MAX_TX_QUEUES	(MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES)
 #define mwl8k_tx_queues(priv)	(MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues)
 
+/* txpriorities are mapped with hw queues.
+ * Each hw queue has a txpriority.
+ */
+#define TOTAL_HW_TX_QUEUES	8
+
+/* Each HW queue can have one AMPDU stream.
+ * But, because one of the hw queue is reserved,
+ * maximum AMPDU queues that can be created are
+ * one short of total tx queues.
+ */
+#define MWL8K_NUM_AMPDU_STREAMS	(TOTAL_HW_TX_QUEUES - 1)
+
 struct rxd_ops {
 	int rxd_size;
 	void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr);
@@ -160,7 +172,6 @@ struct mwl8k_ampdu_stream {
 	u8 tid;
 	u8 state;
 	u8 idx;
-	u8 txq_idx; /* index of this stream in priv->txq */
 };
 
 struct mwl8k_priv {
@@ -1734,14 +1745,13 @@ mwl8k_add_stream(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u8 tid)
 	struct mwl8k_priv *priv = hw->priv;
 	int i;
 
-	for (i = 0; i < priv->num_ampdu_queues; i++) {
+	for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
 		stream = &priv->ampdu[i];
 		if (stream->state == AMPDU_NO_STREAM) {
 			stream->sta = sta;
 			stream->state = AMPDU_STREAM_NEW;
 			stream->tid = tid;
 			stream->idx = i;
-			stream->txq_idx = MWL8K_TX_WMM_QUEUES + i;
 			wiphy_debug(hw->wiphy, "Added a new stream for %pM %d",
 				    sta->addr, tid);
 			return stream;
@@ -1782,7 +1792,7 @@ mwl8k_lookup_stream(struct ieee80211_hw *hw, u8 *addr, u8 tid)
 	struct mwl8k_priv *priv = hw->priv;
 	int i;
 
-	for (i = 0 ; i < priv->num_ampdu_queues; i++) {
+	for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
 		struct mwl8k_ampdu_stream *stream;
 		stream = &priv->ampdu[i];
 		if (stream->state == AMPDU_NO_STREAM)
@@ -1829,6 +1839,13 @@ static inline void mwl8k_tx_count_packet(struct ieee80211_sta *sta, u8 tid)
 		tx_stats->pkts++;
 }
 
+/* The hardware ampdu queues start from 5.
+ * txpriorities for ampdu queues are
+ * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
+ * and queue 3 is lowest (queue 4 is reserved)
+ */
+#define BA_QUEUE		5
+
 static void
 mwl8k_txq_xmit(struct ieee80211_hw *hw,
 	       int index,
@@ -1928,8 +1945,13 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
 		stream = mwl8k_lookup_stream(hw, sta->addr, tid);
 		if (stream != NULL) {
 			if (stream->state == AMPDU_STREAM_ACTIVE) {
-				txpriority = stream->txq_idx;
-				index = stream->txq_idx;
+				WARN_ON(!(qos & MWL8K_QOS_ACK_POLICY_BLOCKACK));
+				txpriority = (BA_QUEUE + stream->idx) %
+					     TOTAL_HW_TX_QUEUES;
+				if (stream->idx <= 1)
+					index = stream->idx +
+						MWL8K_TX_WMM_QUEUES;
+
 			} else if (stream->state == AMPDU_STREAM_NEW) {
 				/* We get here if the driver sends us packets
 				 * after we've initiated a stream, but before
@@ -1971,6 +1993,9 @@ mwl8k_txq_xmit(struct ieee80211_hw *hw,
 			}
 		}
 		spin_unlock(&priv->stream_lock);
+	} else {
+		qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
+		qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
 	}
 
 	dma = pci_map_single(priv->pdev, skb->data,
@@ -3763,7 +3788,7 @@ mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
 }
 
 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
-			     struct mwl8k_ampdu_stream *stream)
+			     u8 idx)
 {
 	struct mwl8k_cmd_bastream *cmd;
 
@@ -3775,10 +3800,10 @@ static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
 	cmd->header.length = cpu_to_le16(sizeof(*cmd));
 	cmd->action = cpu_to_le32(MWL8K_BA_DESTROY);
 
-	cmd->destroy_params.ba_context = cpu_to_le32(stream->idx);
+	cmd->destroy_params.ba_context = cpu_to_le32(idx);
 	mwl8k_post_cmd(hw, &cmd->header);
 
-	wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", stream->idx);
+	wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", idx);
 
 	kfree(cmd);
 }
@@ -5092,7 +5117,7 @@ mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	int i, rc = 0;
 	struct mwl8k_priv *priv = hw->priv;
 	struct mwl8k_ampdu_stream *stream;
-	u8 *addr = sta->addr;
+	u8 *addr = sta->addr, idx;
 	struct mwl8k_sta *sta_info = MWL8K_STA(sta);
 
 	if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
@@ -5170,11 +5195,14 @@ mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		}
 		ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid);
 		break;
-	case IEEE80211_AMPDU_TX_STOP:
+	case IEEE80211_AMPDU_TX_STOP_CONT:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
 		if (stream) {
 			if (stream->state == AMPDU_STREAM_ACTIVE) {
+				idx = stream->idx;
 				spin_unlock(&priv->stream_lock);
-				mwl8k_destroy_ba(hw, stream);
+				mwl8k_destroy_ba(hw, idx);
 				spin_lock(&priv->stream_lock);
 			}
 			mwl8k_remove_stream(hw, stream);
@@ -5190,8 +5218,9 @@ mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 		if (!rc)
 			stream->state = AMPDU_STREAM_ACTIVE;
 		else {
+			idx = stream->idx;
 			spin_unlock(&priv->stream_lock);
-			mwl8k_destroy_ba(hw, stream);
+			mwl8k_destroy_ba(hw, idx);
 			spin_lock(&priv->stream_lock);
 			wiphy_debug(hw->wiphy,
 				"Failed adding stream for sta %pM tid %d\n",