ath9k_htc: Add TX slots

Maintain a bitmap of slots for transmission and update
the cookie field for every packet with the slot value.
This value would be used for matching packets when TX
completion processing is added.

Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 0831ca3de95c..45cf75579438 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -271,6 +271,7 @@ struct ath9k_htc_tx {
         u8 flags;
         int queued_cnt;
         struct sk_buff_head tx_queue;
+        DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);
         spinlock_t tx_lock;
 };
 
@@ -532,7 +533,7 @@ void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);
 int ath9k_tx_init(struct ath9k_htc_priv *priv);
 void ath9k_tx_tasklet(unsigned long data);
 int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,
-                       struct sk_buff *skb, bool is_cab);
+                       struct sk_buff *skb, u8 slot, bool is_cab);
 void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
 bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
 int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
@@ -541,6 +542,8 @@ int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
                        struct ath9k_tx_queue_info *qinfo);
 void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);
 void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);
+int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);
+void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);
 
 int ath9k_rx_init(struct ath9k_htc_priv *priv);
 void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);