iwlwifi: map A-MPDU HW queue to mac80211 A-MPDU SW queue

This patch maps A-MPDU HW queue to mac80211 SW queue scheme (as introduced
in patch "mac80211: QoS related cleanups"), when trying to perform
ieee80211_wake_queue.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 15 insertions, 13 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 9546582e983f..70c0455b622d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -3547,13 +3547,16 @@ static void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
          * block-ack window (we assume that they've been successfully
          * transmitted ... if not, it's too late anyway). */
         if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
+                /* calculate mac80211 ampdu sw queue to wake */
+                int ampdu_q =
+                   scd_flow - IWL_BACK_QUEUE_FIRST_ID + priv->hw->queues;
                 int freed = iwl4965_tx_queue_reclaim(priv, scd_flow, index);
                 priv->stations[ba_resp->sta_id].
                         tid[ba_resp->tid].tfds_in_queue -= freed;
                 if (iwl4965_queue_space(&txq->q) > txq->q.low_mark &&
                         priv->mac80211_registered &&
                         agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)
-                        ieee80211_wake_queue(priv->hw, scd_flow);
+                        ieee80211_wake_queue(priv->hw, ampdu_q);
                 iwl4965_check_empty_hw_queue(priv, ba_resp->sta_id,
                         ba_resp->tid, scd_flow);
         }
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 4406fc72d881..54534270d46f 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -2568,12 +2568,6 @@ int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
                 nfreed++;
         }
 
-/*      if (iwl4965_queue_space(q) > q->low_mark && (txq_id >= 0) &&
-                        (txq_id != IWL_CMD_QUEUE_NUM) &&
-                        priv->mac80211_registered)
-                ieee80211_wake_queue(priv->hw, txq_id); */
-
-
         return nfreed;
 }
 
@@ -2797,7 +2791,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
                 }
 
                 if (txq->q.read_ptr != (scd_ssn & 0xff)) {
-                        int freed;
+                        int freed, ampdu_q;
                         index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
                         IWL_DEBUG_TX_REPLY("Retry scheduler reclaim scd_ssn "
                                            "%d index %d\n", scd_ssn , index);
@@ -2806,9 +2800,15 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
 
                         if (iwl4965_queue_space(&txq->q) > txq->q.low_mark &&
                             txq_id >= 0 && priv->mac80211_registered &&
-                            agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)
-                                ieee80211_wake_queue(priv->hw, txq_id);
-
+                            agg->state != IWL_EMPTYING_HW_QUEUE_DELBA) {
+                                /* calculate mac80211 ampdu sw queue to wake */
+                                ampdu_q = txq_id - IWL_BACK_QUEUE_FIRST_ID +
+                                          priv->hw->queues;
+                                if (agg->state == IWL_AGG_OFF)
+                                        ieee80211_wake_queue(priv->hw, txq_id);
+                                else
+                                        ieee80211_wake_queue(priv->hw, ampdu_q);
+                        }
                         iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);
                 }
         } else {
@@ -2833,8 +2833,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
                 if (tid != MAX_TID_COUNT)
                         priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
                 if (iwl4965_queue_space(&txq->q) > txq->q.low_mark &&
-                        (txq_id >= 0) &&
-                        priv->mac80211_registered)
+                        (txq_id >= 0) && priv->mac80211_registered)
                         ieee80211_wake_queue(priv->hw, txq_id);
                 if (tid != MAX_TID_COUNT)
                         iwl4965_check_empty_hw_queue(priv, sta_id, tid, txq_id);