X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fwireless%2Fiwlwifi%2Fiwl-agn-tx.c;h=8edb3f89b22dc0e8d2ae7c546abfd02e47e96006;hb=fd656935cd05f522d7db97386633f6a0d7751218;hp=53bb59ee719da50b4a3aebd00dfdedaef16605a5;hpb=b0189cd087aa82bd23277cb5c8960ab030e13e5c;p=deliverable%2Flinux.git

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index 53bb59ee719d..8edb3f89b22d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -31,6 +31,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/ieee80211.h>
 
 #include "iwl-dev.h"
 #include "iwl-core.h"
@@ -101,12 +102,12 @@ static int iwlagn_txq_agg_enable(struct iwl_priv *priv, int txq_id, int sta_id,
 {
 	if ((IWLAGN_FIRST_AMPDU_QUEUE > txq_id) ||
 	    (IWLAGN_FIRST_AMPDU_QUEUE +
-		priv->cfg->base_params->num_of_ampdu_queues <= txq_id)) {
+		hw_params(priv).num_ampdu_queues <= txq_id)) {
 		IWL_WARN(priv,
 			"queue number out of range: %d, must be %d to %d\n",
 			txq_id, IWLAGN_FIRST_AMPDU_QUEUE,
 			IWLAGN_FIRST_AMPDU_QUEUE +
-			priv->cfg->base_params->num_of_ampdu_queues - 1);
+			hw_params(priv).num_ampdu_queues - 1);
 		return -EINVAL;
 	}
 
@@ -128,11 +129,10 @@ static void iwlagn_tx_cmd_protection(struct iwl_priv *priv,
  * handle build REPLY_TX command notification.
  */
 static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
-					struct sk_buff *skb,
-					struct iwl_tx_cmd *tx_cmd,
-					struct ieee80211_tx_info *info,
-					struct ieee80211_hdr *hdr,
-					u8 std_id)
+				      struct sk_buff *skb,
+				      struct iwl_tx_cmd *tx_cmd,
+				      struct ieee80211_tx_info *info,
+				      struct ieee80211_hdr *hdr, u8 sta_id)
 {
 	__le16 fc = hdr->frame_control;
 	__le32 tx_flags = tx_cmd->tx_flags;
@@ -157,7 +157,7 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
 		tx_flags |= TX_CMD_FLG_IGNORE_BT;
 
 
-	tx_cmd->sta_id = std_id;
+	tx_cmd->sta_id = sta_id;
 	if (ieee80211_has_morefrags(fc))
 		tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
 
@@ -189,9 +189,9 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv,
 #define RTS_DFAULT_RETRY_LIMIT		60
 
 static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
-			      struct iwl_tx_cmd *tx_cmd,
-			      struct ieee80211_tx_info *info,
-			      __le16 fc)
+				     struct iwl_tx_cmd *tx_cmd,
+				     struct ieee80211_tx_info *info,
+				     __le16 fc)
 {
 	u32 rate_flags;
 	int rate_idx;
@@ -261,10 +261,10 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv,
 	     priv->bt_full_concurrent) {
 		/* operated as 1x1 in full concurrency mode */
 		priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
-				first_antenna(priv->hw_params.valid_tx_ant));
+				first_antenna(hw_params(priv).valid_tx_ant));
 	} else
 		priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
-					      priv->hw_params.valid_tx_ant);
+						hw_params(priv).valid_tx_ant);
 	rate_flags |= iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
 
 	/* Set the rate in the TX cmd */
@@ -334,18 +334,11 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	unsigned long flags;
 	bool is_agg = false;
 
-	/*
-	 * If the frame needs to go out off-channel, then
-	 * we'll have put the PAN context to that channel,
-	 * so make the frame go out there.
-	 */
-	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)
-		ctx = &priv->contexts[IWL_RXON_CTX_PAN];
-	else if (info->control.vif)
+	if (info->control.vif)
 		ctx = iwl_rxon_ctx_from_vif(info->control.vif);
 
-	spin_lock_irqsave(&priv->lock, flags);
-	if (iwl_is_rfkill(priv)) {
+	spin_lock_irqsave(&priv->shrd->lock, flags);
+	if (iwl_is_rfkill(priv->shrd)) {
 		IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n");
 		goto drop_unlock_priv;
 	}
@@ -407,21 +400,25 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		 */
 		hdr->frame_control |=
 			cpu_to_le16(IEEE80211_FCTL_MOREDATA);
-	} else
+	} else if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)
+		txq_id = IWL_AUX_QUEUE;
+	else
 		txq_id = ctx->ac_to_queue[skb_get_queue_mapping(skb)];
 
-	/* irqs already disabled/saved above when locking priv->lock */
-	spin_lock(&priv->sta_lock);
+	/* irqs already disabled/saved above when locking priv->shrd->lock */
+	spin_lock(&priv->shrd->sta_lock);
 
 	if (ieee80211_is_data_qos(fc)) {
 		u8 *qc = NULL;
+		struct iwl_tid_data *tid_data;
 		qc = ieee80211_get_qos_ctl(hdr);
 		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+		tid_data = &priv->shrd->tid_data[sta_id][tid];
 
-		if (WARN_ON_ONCE(tid >= MAX_TID_COUNT))
+		if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
 			goto drop_unlock_sta;
 
-		seq_number = priv->stations[sta_id].tid[tid].seq_number;
+		seq_number = tid_data->seq_number;
 		seq_number &= IEEE80211_SCTL_SEQ;
 		hdr->seq_ctrl = hdr->seq_ctrl &
 				cpu_to_le16(IEEE80211_SCTL_FRAG);
@@ -429,13 +426,13 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 		seq_number += 0x10;
 		/* aggregation is on for this <sta,tid> */
 		if (info->flags & IEEE80211_TX_CTL_AMPDU &&
-		    priv->stations[sta_id].tid[tid].agg.state == IWL_AGG_ON) {
-			txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
+		    tid_data->agg.state == IWL_AGG_ON) {
+			txq_id = tid_data->agg.txq_id;
 			is_agg = true;
 		}
 	}
 
-	tx_cmd = trans_get_tx_cmd(&priv->trans, txq_id);
+	tx_cmd = iwl_trans_get_tx_cmd(trans(priv), txq_id);
 	if (unlikely(!tx_cmd))
 		goto drop_unlock_sta;
 
@@ -457,17 +454,18 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 
 	iwl_update_stats(priv, true, fc, len);
 
-	if (trans_tx(&priv->trans, skb, tx_cmd, txq_id, fc, is_agg, ctx))
+	if (iwl_trans_tx(trans(priv), skb, tx_cmd, txq_id, fc, is_agg, ctx))
 		goto drop_unlock_sta;
 
 	if (ieee80211_is_data_qos(fc)) {
-		priv->stations[sta_id].tid[tid].tfds_in_queue++;
+		priv->shrd->tid_data[sta_id][tid].tfds_in_queue++;
 		if (!ieee80211_has_morefrags(fc))
-			priv->stations[sta_id].tid[tid].seq_number = seq_number;
+			priv->shrd->tid_data[sta_id][tid].seq_number =
+				seq_number;
 	}
 
-	spin_unlock(&priv->sta_lock);
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock(&priv->shrd->sta_lock);
+	spin_unlock_irqrestore(&priv->shrd->lock, flags);
 
 	/*
 	 * Avoid atomic ops if it isn't an associated client.
@@ -482,9 +480,9 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
 	return 0;
 
 drop_unlock_sta:
-	spin_unlock(&priv->sta_lock);
+	spin_unlock(&priv->shrd->sta_lock);
 drop_unlock_priv:
-	spin_unlock_irqrestore(&priv->lock, flags);
+	spin_unlock_irqrestore(&priv->shrd->lock, flags);
 	return -1;
 }
 
@@ -498,7 +496,7 @@ static int iwlagn_txq_ctx_activate_free(struct iwl_priv *priv)
 {
 	int txq_id;
 
-	for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
+	for (txq_id = 0; txq_id < hw_params(priv).max_txq_num; txq_id++)
 		if (!test_and_set_bit(txq_id, &priv->txq_ctx_active_msk))
 			return txq_id;
 	return -1;
@@ -526,10 +524,10 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 		IWL_ERR(priv, "Start AGG on invalid station\n");
 		return -ENXIO;
 	}
-	if (unlikely(tid >= MAX_TID_COUNT))
+	if (unlikely(tid >= IWL_MAX_TID_COUNT))
 		return -EINVAL;
 
-	if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) {
+	if (priv->shrd->tid_data[sta_id][tid].agg.state != IWL_AGG_OFF) {
 		IWL_ERR(priv, "Start AGG when state is not IWL_AGG_OFF !\n");
 		return -ENXIO;
 	}
@@ -540,20 +538,20 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 		return -ENXIO;
 	}
 
-	spin_lock_irqsave(&priv->sta_lock, flags);
-	tid_data = &priv->stations[sta_id].tid[tid];
+	spin_lock_irqsave(&priv->shrd->sta_lock, flags);
+	tid_data = &priv->shrd->tid_data[sta_id][tid];
 	*ssn = SEQ_TO_SN(tid_data->seq_number);
 	tid_data->agg.txq_id = txq_id;
 	tid_data->agg.tx_fifo = tx_fifo;
 	iwl_set_swq_id(&priv->txq[txq_id], get_ac_from_tid(tid), txq_id);
-	spin_unlock_irqrestore(&priv->sta_lock, flags);
+	spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 
 	ret = iwlagn_txq_agg_enable(priv, txq_id, sta_id, tid);
 	if (ret)
 		return ret;
 
-	spin_lock_irqsave(&priv->sta_lock, flags);
-	tid_data = &priv->stations[sta_id].tid[tid];
+	spin_lock_irqsave(&priv->shrd->sta_lock, flags);
+	tid_data = &priv->shrd->tid_data[sta_id][tid];
 	if (tid_data->tfds_in_queue == 0) {
 		IWL_DEBUG_HT(priv, "HW queue is empty\n");
 		tid_data->agg.state = IWL_AGG_ON;
@@ -563,7 +561,7 @@ int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 			     tid_data->tfds_in_queue);
 		tid_data->agg.state = IWL_EMPTYING_HW_QUEUE_ADDBA;
 	}
-	spin_unlock_irqrestore(&priv->sta_lock, flags);
+	spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 	return ret;
 }
 
@@ -586,13 +584,13 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
 		return -ENXIO;
 	}
 
-	spin_lock_irqsave(&priv->sta_lock, flags);
+	spin_lock_irqsave(&priv->shrd->sta_lock, flags);
 
-	tid_data = &priv->stations[sta_id].tid[tid];
+	tid_data = &priv->shrd->tid_data[sta_id][tid];
 	ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
 	txq_id = tid_data->agg.txq_id;
 
-	switch (priv->stations[sta_id].tid[tid].agg.state) {
+	switch (priv->shrd->tid_data[sta_id][tid].agg.state) {
 	case IWL_EMPTYING_HW_QUEUE_ADDBA:
 		/*
 		 * This can happen if the peer stops aggregation
@@ -614,19 +612,19 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
 	/* The queue is not empty */
 	if (write_ptr != read_ptr) {
 		IWL_DEBUG_HT(priv, "Stopping a non empty AGG HW QUEUE\n");
-		priv->stations[sta_id].tid[tid].agg.state =
+		priv->shrd->tid_data[sta_id][tid].agg.state =
 				IWL_EMPTYING_HW_QUEUE_DELBA;
-		spin_unlock_irqrestore(&priv->sta_lock, flags);
+		spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 		return 0;
 	}
 
 	IWL_DEBUG_HT(priv, "HW queue is empty\n");
  turn_off:
-	priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF;
+	priv->shrd->tid_data[sta_id][tid].agg.state = IWL_AGG_OFF;
 
 	/* do not restore/save irqs */
-	spin_unlock(&priv->sta_lock);
-	spin_lock(&priv->lock);
+	spin_unlock(&priv->shrd->sta_lock);
+	spin_lock(&priv->shrd->lock);
 
 	/*
 	 * the only reason this call can fail is queue number out of range,
@@ -635,27 +633,27 @@ int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
 	 * to deactivate the uCode queue, just return "success" to allow
 	 *  mac80211 to clean up it own data.
 	 */
-	trans_txq_agg_disable(&priv->trans, txq_id, ssn, tx_fifo_id);
-	spin_unlock_irqrestore(&priv->lock, flags);
+	iwl_trans_txq_agg_disable(trans(priv), txq_id, ssn, tx_fifo_id);
+	spin_unlock_irqrestore(&priv->shrd->lock, flags);
 
 	ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
 
 	return 0;
 }
 
-int iwlagn_txq_check_empty(struct iwl_priv *priv,
+static int iwlagn_txq_check_empty(struct iwl_priv *priv,
 			   int sta_id, u8 tid, int txq_id)
 {
 	struct iwl_queue *q = &priv->txq[txq_id].q;
 	u8 *addr = priv->stations[sta_id].sta.sta.addr;
-	struct iwl_tid_data *tid_data = &priv->stations[sta_id].tid[tid];
+	struct iwl_tid_data *tid_data = &priv->shrd->tid_data[sta_id][tid];
 	struct iwl_rxon_context *ctx;
 
 	ctx = &priv->contexts[priv->stations[sta_id].ctxid];
 
-	lockdep_assert_held(&priv->sta_lock);
+	lockdep_assert_held(&priv->shrd->sta_lock);
 
-	switch (priv->stations[sta_id].tid[tid].agg.state) {
+	switch (priv->shrd->tid_data[sta_id][tid].agg.state) {
 	case IWL_EMPTYING_HW_QUEUE_DELBA:
 		/* We are reclaiming the last packet of the */
 		/* aggregated HW queue */
@@ -664,7 +662,7 @@ int iwlagn_txq_check_empty(struct iwl_priv *priv,
 			u16 ssn = SEQ_TO_SN(tid_data->seq_number);
 			int tx_fifo = get_fifo_from_tid(ctx, tid);
 			IWL_DEBUG_HT(priv, "HW queue empty: continue DELBA flow\n");
-			trans_txq_agg_disable(&priv->trans, txq_id,
+			iwl_trans_txq_agg_disable(trans(priv), txq_id,
 				ssn, tx_fifo);
 			tid_data->agg.state = IWL_AGG_OFF;
 			ieee80211_stop_tx_ba_cb_irqsafe(ctx->vif, addr, tid);
@@ -702,147 +700,417 @@ static void iwlagn_non_agg_tx_status(struct iwl_priv *priv,
 	rcu_read_unlock();
 }
 
-static void iwlagn_tx_status(struct iwl_priv *priv, struct iwl_tx_info *tx_info,
-			     bool is_agg)
+/**
+ * translate ucode response to mac80211 tx status control values
+ */
+static void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
+				  struct ieee80211_tx_info *info)
 {
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx_info->skb->data;
+	struct ieee80211_tx_rate *r = &info->control.rates[0];
+
+	info->antenna_sel_tx =
+		((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
+	if (rate_n_flags & RATE_MCS_HT_MSK)
+		r->flags |= IEEE80211_TX_RC_MCS;
+	if (rate_n_flags & RATE_MCS_GF_MSK)
+		r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
+	if (rate_n_flags & RATE_MCS_HT40_MSK)
+		r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
+	if (rate_n_flags & RATE_MCS_DUP_MSK)
+		r->flags |= IEEE80211_TX_RC_DUP_DATA;
+	if (rate_n_flags & RATE_MCS_SGI_MSK)
+		r->flags |= IEEE80211_TX_RC_SHORT_GI;
+	r->idx = iwlagn_hwrate_to_mac80211_idx(rate_n_flags, info->band);
+}
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+const char *iwl_get_tx_fail_reason(u32 status)
+{
+#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x
+#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x
+
+	switch (status & TX_STATUS_MSK) {
+	case TX_STATUS_SUCCESS:
+		return "SUCCESS";
+	TX_STATUS_POSTPONE(DELAY);
+	TX_STATUS_POSTPONE(FEW_BYTES);
+	TX_STATUS_POSTPONE(BT_PRIO);
+	TX_STATUS_POSTPONE(QUIET_PERIOD);
+	TX_STATUS_POSTPONE(CALC_TTAK);
+	TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY);
+	TX_STATUS_FAIL(SHORT_LIMIT);
+	TX_STATUS_FAIL(LONG_LIMIT);
+	TX_STATUS_FAIL(FIFO_UNDERRUN);
+	TX_STATUS_FAIL(DRAIN_FLOW);
+	TX_STATUS_FAIL(RFKILL_FLUSH);
+	TX_STATUS_FAIL(LIFE_EXPIRE);
+	TX_STATUS_FAIL(DEST_PS);
+	TX_STATUS_FAIL(HOST_ABORTED);
+	TX_STATUS_FAIL(BT_RETRY);
+	TX_STATUS_FAIL(STA_INVALID);
+	TX_STATUS_FAIL(FRAG_DROPPED);
+	TX_STATUS_FAIL(TID_DISABLE);
+	TX_STATUS_FAIL(FIFO_FLUSHED);
+	TX_STATUS_FAIL(INSUFFICIENT_CF_POLL);
+	TX_STATUS_FAIL(PASSIVE_NO_RX);
+	TX_STATUS_FAIL(NO_BEACON_ON_RADAR);
+	}
 
-	if (!is_agg)
-		iwlagn_non_agg_tx_status(priv, tx_info->ctx, hdr->addr1);
+	return "UNKNOWN";
 
-	ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb);
+#undef TX_STATUS_FAIL
+#undef TX_STATUS_POSTPONE
 }
+#endif /* CONFIG_IWLWIFI_DEBUG */
 
-int iwlagn_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
+static void iwlagn_count_agg_tx_err_status(struct iwl_priv *priv, u16 status)
 {
-	struct iwl_tx_queue *txq = &priv->txq[txq_id];
-	struct iwl_queue *q = &txq->q;
-	struct iwl_tx_info *tx_info;
-	int nfreed = 0;
-	struct ieee80211_hdr *hdr;
+	status &= AGG_TX_STATUS_MSK;
 
-	if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
-		IWL_ERR(priv, "%s: Read index for DMA queue txq id (%d), "
-			  "index %d is out of range [0-%d] %d %d.\n", __func__,
-			  txq_id, index, q->n_bd, q->write_ptr, q->read_ptr);
-		return 0;
+	switch (status) {
+	case AGG_TX_STATE_UNDERRUN_MSK:
+		priv->reply_agg_tx_stats.underrun++;
+		break;
+	case AGG_TX_STATE_BT_PRIO_MSK:
+		priv->reply_agg_tx_stats.bt_prio++;
+		break;
+	case AGG_TX_STATE_FEW_BYTES_MSK:
+		priv->reply_agg_tx_stats.few_bytes++;
+		break;
+	case AGG_TX_STATE_ABORT_MSK:
+		priv->reply_agg_tx_stats.abort++;
+		break;
+	case AGG_TX_STATE_LAST_SENT_TTL_MSK:
+		priv->reply_agg_tx_stats.last_sent_ttl++;
+		break;
+	case AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK:
+		priv->reply_agg_tx_stats.last_sent_try++;
+		break;
+	case AGG_TX_STATE_LAST_SENT_BT_KILL_MSK:
+		priv->reply_agg_tx_stats.last_sent_bt_kill++;
+		break;
+	case AGG_TX_STATE_SCD_QUERY_MSK:
+		priv->reply_agg_tx_stats.scd_query++;
+		break;
+	case AGG_TX_STATE_TEST_BAD_CRC32_MSK:
+		priv->reply_agg_tx_stats.bad_crc32++;
+		break;
+	case AGG_TX_STATE_RESPONSE_MSK:
+		priv->reply_agg_tx_stats.response++;
+		break;
+	case AGG_TX_STATE_DUMP_TX_MSK:
+		priv->reply_agg_tx_stats.dump_tx++;
+		break;
+	case AGG_TX_STATE_DELAY_TX_MSK:
+		priv->reply_agg_tx_stats.delay_tx++;
+		break;
+	default:
+		priv->reply_agg_tx_stats.unknown++;
+		break;
 	}
+}
 
-	for (index = iwl_queue_inc_wrap(index, q->n_bd);
-	     q->read_ptr != index;
-	     q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+static void iwl_rx_reply_tx_agg(struct iwl_priv *priv,
+				struct iwlagn_tx_resp *tx_resp)
+{
+	struct agg_tx_status *frame_status = &tx_resp->status;
+	int tid = (tx_resp->ra_tid & IWLAGN_TX_RES_TID_MSK) >>
+		IWLAGN_TX_RES_TID_POS;
+	int sta_id = (tx_resp->ra_tid & IWLAGN_TX_RES_RA_MSK) >>
+		IWLAGN_TX_RES_RA_POS;
+	struct iwl_ht_agg *agg = &priv->shrd->tid_data[sta_id][tid].agg;
+	u32 status = le16_to_cpu(tx_resp->status.status);
+	int i;
+
+	if (agg->wait_for_ba)
+		IWL_DEBUG_TX_REPLY(priv,
+			"got tx response w/o block-ack\n");
 
-		tx_info = &txq->txb[txq->q.read_ptr];
+	agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
+	agg->wait_for_ba = (tx_resp->frame_count > 1);
 
-		if (WARN_ON_ONCE(tx_info->skb == NULL))
-			continue;
+	/*
+	 * If the BT kill count is non-zero, we'll get this
+	 * notification again.
+	 */
+	if (tx_resp->bt_kill_count && tx_resp->frame_count == 1 &&
+	    priv->cfg->bt_params &&
+	    priv->cfg->bt_params->advanced_bt_coexist) {
+		IWL_DEBUG_COEX(priv, "receive reply tx w/ bt_kill\n");
+	}
 
-		hdr = (struct ieee80211_hdr *)tx_info->skb->data;
-		if (ieee80211_is_data_qos(hdr->frame_control))
-			nfreed++;
+	/* Construct bit-map of pending frames within Tx window */
+	for (i = 0; i < tx_resp->frame_count; i++) {
+		u16 fstatus = le16_to_cpu(frame_status[i].status);
 
-		iwlagn_tx_status(priv, tx_info,
-				 txq_id >= IWLAGN_FIRST_AMPDU_QUEUE);
-		tx_info->skb = NULL;
+		if (status & AGG_TX_STATUS_MSK)
+			iwlagn_count_agg_tx_err_status(priv, fstatus);
 
-		iwlagn_txq_inval_byte_cnt_tbl(priv, txq);
+		if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
+			      AGG_TX_STATE_ABORT_MSK))
+			continue;
 
-		iwlagn_txq_free_tfd(priv, txq, txq->q.read_ptr);
+		IWL_DEBUG_TX_REPLY(priv, "status %s (0x%08x), "
+				   "try-count (0x%08x)\n",
+				   iwl_get_agg_tx_fail_reason(fstatus),
+				   fstatus & AGG_TX_STATUS_MSK,
+				   fstatus & AGG_TX_TRY_MSK);
 	}
-	return nfreed;
 }
 
-/**
- * iwlagn_tx_status_reply_compressed_ba - Update tx status from block-ack
- *
- * Go through block-ack's bitmap of ACK'd frames, update driver's record of
- * ACK vs. not.  This gets sent to mac80211, then to rate scaling algo.
- */
-static int iwlagn_tx_status_reply_compressed_ba(struct iwl_priv *priv,
-				 struct iwl_ht_agg *agg,
-				 struct iwl_compressed_ba_resp *ba_resp)
+#ifdef CONFIG_IWLWIFI_DEBUG
+#define AGG_TX_STATE_FAIL(x) case AGG_TX_STATE_ ## x: return #x
 
+const char *iwl_get_agg_tx_fail_reason(u16 status)
 {
-	int sh;
-	u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl);
-	u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
-	struct ieee80211_tx_info *info;
-	u64 bitmap, sent_bitmap;
-
-	if (unlikely(!agg->wait_for_ba))  {
-		if (unlikely(ba_resp->bitmap))
-			IWL_ERR(priv, "Received BA when not expected\n");
-		return -EINVAL;
+	status &= AGG_TX_STATUS_MSK;
+	switch (status) {
+	case AGG_TX_STATE_TRANSMITTED:
+		return "SUCCESS";
+		AGG_TX_STATE_FAIL(UNDERRUN_MSK);
+		AGG_TX_STATE_FAIL(BT_PRIO_MSK);
+		AGG_TX_STATE_FAIL(FEW_BYTES_MSK);
+		AGG_TX_STATE_FAIL(ABORT_MSK);
+		AGG_TX_STATE_FAIL(LAST_SENT_TTL_MSK);
+		AGG_TX_STATE_FAIL(LAST_SENT_TRY_CNT_MSK);
+		AGG_TX_STATE_FAIL(LAST_SENT_BT_KILL_MSK);
+		AGG_TX_STATE_FAIL(SCD_QUERY_MSK);
+		AGG_TX_STATE_FAIL(TEST_BAD_CRC32_MSK);
+		AGG_TX_STATE_FAIL(RESPONSE_MSK);
+		AGG_TX_STATE_FAIL(DUMP_TX_MSK);
+		AGG_TX_STATE_FAIL(DELAY_TX_MSK);
 	}
 
-	/* Mark that the expected block-ack response arrived */
-	agg->wait_for_ba = 0;
-	IWL_DEBUG_TX_REPLY(priv, "BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
+	return "UNKNOWN";
+}
+#endif /* CONFIG_IWLWIFI_DEBUG */
 
-	/* Calculate shift to align block-ack bits with our Tx window bits */
-	sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl >> 4);
-	if (sh < 0)
-		sh += 0x100;
+static inline u32 iwlagn_get_scd_ssn(struct iwlagn_tx_resp *tx_resp)
+{
+	return le32_to_cpup((__le32 *)&tx_resp->status +
+			    tx_resp->frame_count) & MAX_SN;
+}
 
-	/*
-	 * Check for success or failure according to the
-	 * transmitted bitmap and block-ack bitmap
-	 */
-	bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
-	sent_bitmap = bitmap & agg->bitmap;
+static void iwl_free_tfds_in_queue(struct iwl_priv *priv,
+			    int sta_id, int tid, int freed)
+{
+	lockdep_assert_held(&priv->shrd->sta_lock);
 
-	/* Sanity check values reported by uCode */
-	if (ba_resp->txed_2_done > ba_resp->txed) {
-		IWL_DEBUG_TX_REPLY(priv,
-			"bogus sent(%d) and ack(%d) count\n",
-			ba_resp->txed, ba_resp->txed_2_done);
-		/*
-		 * set txed_2_done = txed,
-		 * so it won't impact rate scale
-		 */
-		ba_resp->txed = ba_resp->txed_2_done;
+	if (priv->shrd->tid_data[sta_id][tid].tfds_in_queue >= freed)
+		priv->shrd->tid_data[sta_id][tid].tfds_in_queue -= freed;
+	else {
+		IWL_DEBUG_TX(priv, "free more than tfds_in_queue (%u:%d)\n",
+			priv->shrd->tid_data[sta_id][tid].tfds_in_queue,
+			freed);
+		priv->shrd->tid_data[sta_id][tid].tfds_in_queue = 0;
 	}
-	IWL_DEBUG_HT(priv, "agg frames sent:%d, acked:%d\n",
-			ba_resp->txed, ba_resp->txed_2_done);
+}
+
+static void iwlagn_count_tx_err_status(struct iwl_priv *priv, u16 status)
+{
+	status &= TX_STATUS_MSK;
 
-	/* Find the first ACKed frame to store the TX status */
-	while (sent_bitmap && !(sent_bitmap & 1)) {
-		agg->start_idx = (agg->start_idx + 1) & 0xff;
-		sent_bitmap >>= 1;
+	switch (status) {
+	case TX_STATUS_POSTPONE_DELAY:
+		priv->reply_tx_stats.pp_delay++;
+		break;
+	case TX_STATUS_POSTPONE_FEW_BYTES:
+		priv->reply_tx_stats.pp_few_bytes++;
+		break;
+	case TX_STATUS_POSTPONE_BT_PRIO:
+		priv->reply_tx_stats.pp_bt_prio++;
+		break;
+	case TX_STATUS_POSTPONE_QUIET_PERIOD:
+		priv->reply_tx_stats.pp_quiet_period++;
+		break;
+	case TX_STATUS_POSTPONE_CALC_TTAK:
+		priv->reply_tx_stats.pp_calc_ttak++;
+		break;
+	case TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY:
+		priv->reply_tx_stats.int_crossed_retry++;
+		break;
+	case TX_STATUS_FAIL_SHORT_LIMIT:
+		priv->reply_tx_stats.short_limit++;
+		break;
+	case TX_STATUS_FAIL_LONG_LIMIT:
+		priv->reply_tx_stats.long_limit++;
+		break;
+	case TX_STATUS_FAIL_FIFO_UNDERRUN:
+		priv->reply_tx_stats.fifo_underrun++;
+		break;
+	case TX_STATUS_FAIL_DRAIN_FLOW:
+		priv->reply_tx_stats.drain_flow++;
+		break;
+	case TX_STATUS_FAIL_RFKILL_FLUSH:
+		priv->reply_tx_stats.rfkill_flush++;
+		break;
+	case TX_STATUS_FAIL_LIFE_EXPIRE:
+		priv->reply_tx_stats.life_expire++;
+		break;
+	case TX_STATUS_FAIL_DEST_PS:
+		priv->reply_tx_stats.dest_ps++;
+		break;
+	case TX_STATUS_FAIL_HOST_ABORTED:
+		priv->reply_tx_stats.host_abort++;
+		break;
+	case TX_STATUS_FAIL_BT_RETRY:
+		priv->reply_tx_stats.bt_retry++;
+		break;
+	case TX_STATUS_FAIL_STA_INVALID:
+		priv->reply_tx_stats.sta_invalid++;
+		break;
+	case TX_STATUS_FAIL_FRAG_DROPPED:
+		priv->reply_tx_stats.frag_drop++;
+		break;
+	case TX_STATUS_FAIL_TID_DISABLE:
+		priv->reply_tx_stats.tid_disable++;
+		break;
+	case TX_STATUS_FAIL_FIFO_FLUSHED:
+		priv->reply_tx_stats.fifo_flush++;
+		break;
+	case TX_STATUS_FAIL_INSUFFICIENT_CF_POLL:
+		priv->reply_tx_stats.insuff_cf_poll++;
+		break;
+	case TX_STATUS_FAIL_PASSIVE_NO_RX:
+		priv->reply_tx_stats.fail_hw_drop++;
+		break;
+	case TX_STATUS_FAIL_NO_BEACON_ON_RADAR:
+		priv->reply_tx_stats.sta_color_mismatch++;
+		break;
+	default:
+		priv->reply_tx_stats.unknown++;
+		break;
 	}
+}
 
-	info = IEEE80211_SKB_CB(priv->txq[scd_flow].txb[agg->start_idx].skb);
-	memset(&info->status, 0, sizeof(info->status));
-	info->flags |= IEEE80211_TX_STAT_ACK;
-	info->flags |= IEEE80211_TX_STAT_AMPDU;
-	info->status.ampdu_ack_len = ba_resp->txed_2_done;
-	info->status.ampdu_len = ba_resp->txed;
-	iwlagn_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
+static void iwlagn_set_tx_status(struct iwl_priv *priv,
+				 struct ieee80211_tx_info *info,
+				 struct iwlagn_tx_resp *tx_resp,
+				 bool is_agg)
+{
+	u16  status = le16_to_cpu(tx_resp->status.status);
+
+	info->status.rates[0].count = tx_resp->failure_frame + 1;
+	if (is_agg)
+		info->flags &= ~IEEE80211_TX_CTL_AMPDU;
+	info->flags |= iwl_tx_status_to_mac80211(status);
+	iwlagn_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags),
+				    info);
+	if (!iwl_is_tx_success(status))
+		iwlagn_count_tx_err_status(priv, status);
+}
 
-	return 0;
+static void iwl_check_abort_status(struct iwl_priv *priv,
+			    u8 frame_count, u32 status)
+{
+	if (frame_count == 1 && status == TX_STATUS_FAIL_RFKILL_FLUSH) {
+		IWL_ERR(priv, "Tx flush command to flush out all frames\n");
+		if (!test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
+			queue_work(priv->shrd->workqueue, &priv->tx_flush);
+	}
 }
 
-/**
- * translate ucode response to mac80211 tx status control values
- */
-void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
-				  struct ieee80211_tx_info *info)
+void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 {
-	struct ieee80211_tx_rate *r = &info->control.rates[0];
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+	int txq_id = SEQ_TO_QUEUE(sequence);
+	int cmd_index = SEQ_TO_INDEX(sequence);
+	struct iwl_tx_queue *txq = &priv->txq[txq_id];
+	struct iwlagn_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
+	struct ieee80211_hdr *hdr;
+	u32 status = le16_to_cpu(tx_resp->status.status);
+	u32 ssn = iwlagn_get_scd_ssn(tx_resp);
+	int tid;
+	int sta_id;
+	int freed;
+	struct ieee80211_tx_info *info;
+	unsigned long flags;
+	struct sk_buff_head skbs;
+	struct sk_buff *skb;
+	struct iwl_rxon_context *ctx;
 
-	info->antenna_sel_tx =
-		((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
-	if (rate_n_flags & RATE_MCS_HT_MSK)
-		r->flags |= IEEE80211_TX_RC_MCS;
-	if (rate_n_flags & RATE_MCS_GF_MSK)
-		r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
-	if (rate_n_flags & RATE_MCS_HT40_MSK)
-		r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
-	if (rate_n_flags & RATE_MCS_DUP_MSK)
-		r->flags |= IEEE80211_TX_RC_DUP_DATA;
-	if (rate_n_flags & RATE_MCS_SGI_MSK)
-		r->flags |= IEEE80211_TX_RC_SHORT_GI;
-	r->idx = iwlagn_hwrate_to_mac80211_idx(rate_n_flags, info->band);
+	if ((cmd_index >= txq->q.n_bd) ||
+	    (iwl_queue_used(&txq->q, cmd_index) == 0)) {
+		IWL_ERR(priv, "%s: Read index for DMA queue txq_id (%d) "
+			  "cmd_index %d is out of range [0-%d] %d %d\n",
+			  __func__, txq_id, cmd_index, txq->q.n_bd,
+			  txq->q.write_ptr, txq->q.read_ptr);
+		return;
+	}
+
+	txq->time_stamp = jiffies;
+
+	tid = (tx_resp->ra_tid & IWLAGN_TX_RES_TID_MSK) >>
+		IWLAGN_TX_RES_TID_POS;
+	sta_id = (tx_resp->ra_tid & IWLAGN_TX_RES_RA_MSK) >>
+		IWLAGN_TX_RES_RA_POS;
+
+	spin_lock_irqsave(&priv->shrd->sta_lock, flags);
+
+	if (txq->sched_retry)
+		iwl_rx_reply_tx_agg(priv, tx_resp);
+
+	if (tx_resp->frame_count == 1) {
+		bool is_agg = (txq_id >= IWLAGN_FIRST_AMPDU_QUEUE);
+
+		__skb_queue_head_init(&skbs);
+		/*we can free until ssn % q.n_bd not inclusive */
+		iwl_trans_reclaim(trans(priv), txq_id, ssn, status, &skbs);
+		freed = 0;
+		while (!skb_queue_empty(&skbs)) {
+			skb = __skb_dequeue(&skbs);
+			hdr = (struct ieee80211_hdr *)skb->data;
+
+			if (!ieee80211_is_data_qos(hdr->frame_control))
+				priv->last_seq_ctl = tx_resp->seq_ctl;
+
+			info = IEEE80211_SKB_CB(skb);
+			ctx = info->driver_data[0];
+
+			memset(&info->status, 0, sizeof(info->status));
+
+			if (status == TX_STATUS_FAIL_PASSIVE_NO_RX &&
+			    iwl_is_associated_ctx(ctx) && ctx->vif &&
+			    ctx->vif->type == NL80211_IFTYPE_STATION) {
+				ctx->last_tx_rejected = true;
+				iwl_stop_queue(priv, &priv->txq[txq_id]);
+
+				IWL_DEBUG_TX_REPLY(priv,
+					   "TXQ %d status %s (0x%08x) "
+					   "rate_n_flags 0x%x retries %d\n",
+					   txq_id,
+					   iwl_get_tx_fail_reason(status),
+					   status,
+					   le32_to_cpu(tx_resp->rate_n_flags),
+					   tx_resp->failure_frame);
+
+				IWL_DEBUG_TX_REPLY(priv,
+					   "FrameCnt = %d, idx=%d\n",
+					   tx_resp->frame_count, cmd_index);
+			}
+
+			/* check if BAR is needed */
+			if (is_agg && !iwl_is_tx_success(status))
+				info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
+			iwlagn_set_tx_status(priv, IEEE80211_SKB_CB(skb),
+				     tx_resp, is_agg);
+			if (!is_agg)
+				iwlagn_non_agg_tx_status(priv, ctx, hdr->addr1);
+
+			ieee80211_tx_status_irqsafe(priv->hw, skb);
+
+			freed++;
+		}
+
+		WARN_ON(!is_agg && freed != 1);
+
+		iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
+		iwlagn_txq_check_empty(priv, sta_id, tid, txq_id);
+	}
+
+	iwl_check_abort_status(priv, tx_resp->frame_count, status);
+	spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 }
 
 /**
@@ -858,10 +1126,15 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 	struct iwl_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
 	struct iwl_tx_queue *txq = NULL;
 	struct iwl_ht_agg *agg;
+	struct sk_buff_head reclaimed_skbs;
+	struct ieee80211_tx_info *info;
+	struct ieee80211_hdr *hdr;
+	struct sk_buff *skb;
+	unsigned long flags;
 	int index;
 	int sta_id;
 	int tid;
-	unsigned long flags;
+	int freed;
 
 	/* "flow" corresponds to Tx queue */
 	u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
@@ -870,7 +1143,7 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 	 * (in Tx queue's circular buffer) of first TFD/frame in window */
 	u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
 
-	if (scd_flow >= priv->hw_params.max_txq_num) {
+	if (scd_flow >= hw_params(priv).max_txq_num) {
 		IWL_ERR(priv,
 			"BUG_ON scd_flow is bigger than number of queues\n");
 		return;
@@ -879,7 +1152,13 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 	txq = &priv->txq[scd_flow];
 	sta_id = ba_resp->sta_id;
 	tid = ba_resp->tid;
-	agg = &priv->stations[sta_id].tid[tid].agg;
+	agg = &priv->shrd->tid_data[sta_id][tid].agg;
+
+	/* Find index of block-ack window */
+	index = ba_resp_scd_ssn & (txq->q.n_bd - 1);
+
+	spin_lock_irqsave(&priv->shrd->sta_lock, flags);
+
 	if (unlikely(agg->txq_id != scd_flow)) {
 		/*
 		 * FIXME: this is a uCode bug which need to be addressed,
@@ -890,88 +1169,83 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 		IWL_DEBUG_TX_REPLY(priv,
 			"BA scd_flow %d does not match txq_id %d\n",
 			scd_flow, agg->txq_id);
+		spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 		return;
 	}
 
-	/* Find index just before block-ack window */
-	index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
-
-	spin_lock_irqsave(&priv->sta_lock, flags);
+	if (unlikely(!agg->wait_for_ba)) {
+		if (unlikely(ba_resp->bitmap))
+			IWL_ERR(priv, "Received BA when not expected\n");
+		spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
+		return;
+	}
 
 	IWL_DEBUG_TX_REPLY(priv, "REPLY_COMPRESSED_BA [%d] Received from %pM, "
 			   "sta_id = %d\n",
 			   agg->wait_for_ba,
 			   (u8 *) &ba_resp->sta_addr_lo32,
 			   ba_resp->sta_id);
-	IWL_DEBUG_TX_REPLY(priv, "TID = %d, SeqCtl = %d, bitmap = 0x%llx, scd_flow = "
-			   "%d, scd_ssn = %d\n",
+	IWL_DEBUG_TX_REPLY(priv, "TID = %d, SeqCtl = %d, bitmap = 0x%llx, "
+			   "scd_flow = %d, scd_ssn = %d\n",
 			   ba_resp->tid,
 			   ba_resp->seq_ctl,
 			   (unsigned long long)le64_to_cpu(ba_resp->bitmap),
 			   ba_resp->scd_flow,
 			   ba_resp->scd_ssn);
-	IWL_DEBUG_TX_REPLY(priv, "DAT start_idx = %d, bitmap = 0x%llx\n",
-			   agg->start_idx,
-			   (unsigned long long)agg->bitmap);
 
-	/* Update driver's record of ACK vs. not for each frame in window */
-	iwlagn_tx_status_reply_compressed_ba(priv, agg, ba_resp);
+	/* Mark that the expected block-ack response arrived */
+	agg->wait_for_ba = 0;
+
+	/* Sanity check values reported by uCode */
+	if (ba_resp->txed_2_done > ba_resp->txed) {
+		IWL_DEBUG_TX_REPLY(priv,
+			"bogus sent(%d) and ack(%d) count\n",
+			ba_resp->txed, ba_resp->txed_2_done);
+		/*
+		 * set txed_2_done = txed,
+		 * so it won't impact rate scale
+		 */
+		ba_resp->txed = ba_resp->txed_2_done;
+	}
+	IWL_DEBUG_HT(priv, "agg frames sent:%d, acked:%d\n",
+			ba_resp->txed, ba_resp->txed_2_done);
+
+	__skb_queue_head_init(&reclaimed_skbs);
 
 	/* Release all TFDs before the SSN, i.e. all TFDs in front of
 	 * 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 freed = iwlagn_tx_queue_reclaim(priv, scd_flow, index);
-		iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
-
-		if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
-		    priv->mac80211_registered &&
-		    (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
-			iwl_wake_queue(priv, txq);
-
-		iwlagn_txq_check_empty(priv, sta_id, tid, scd_flow);
-	}
+	iwl_trans_reclaim(trans(priv), scd_flow, ba_resp_scd_ssn, 0,
+			  &reclaimed_skbs);
+	freed = 0;
+	while (!skb_queue_empty(&reclaimed_skbs)) {
 
-	spin_unlock_irqrestore(&priv->sta_lock, flags);
-}
+		skb = __skb_dequeue(&reclaimed_skbs);
+		hdr = (struct ieee80211_hdr *)skb->data;
 
-#ifdef CONFIG_IWLWIFI_DEBUG
-const char *iwl_get_tx_fail_reason(u32 status)
-{
-#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x
-#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x
+		if (ieee80211_is_data_qos(hdr->frame_control))
+			freed++;
+		else
+			WARN_ON_ONCE(1);
+
+		if (freed == 0) {
+			/* this is the first skb we deliver in this batch */
+			/* put the rate scaling data there */
+			info = IEEE80211_SKB_CB(skb);
+			memset(&info->status, 0, sizeof(info->status));
+			info->flags |= IEEE80211_TX_STAT_ACK;
+			info->flags |= IEEE80211_TX_STAT_AMPDU;
+			info->status.ampdu_ack_len = ba_resp->txed_2_done;
+			info->status.ampdu_len = ba_resp->txed;
+			iwlagn_hwrate_to_tx_control(priv, agg->rate_n_flags,
+						    info);
+		}
 
-	switch (status & TX_STATUS_MSK) {
-	case TX_STATUS_SUCCESS:
-		return "SUCCESS";
-	TX_STATUS_POSTPONE(DELAY);
-	TX_STATUS_POSTPONE(FEW_BYTES);
-	TX_STATUS_POSTPONE(BT_PRIO);
-	TX_STATUS_POSTPONE(QUIET_PERIOD);
-	TX_STATUS_POSTPONE(CALC_TTAK);
-	TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY);
-	TX_STATUS_FAIL(SHORT_LIMIT);
-	TX_STATUS_FAIL(LONG_LIMIT);
-	TX_STATUS_FAIL(FIFO_UNDERRUN);
-	TX_STATUS_FAIL(DRAIN_FLOW);
-	TX_STATUS_FAIL(RFKILL_FLUSH);
-	TX_STATUS_FAIL(LIFE_EXPIRE);
-	TX_STATUS_FAIL(DEST_PS);
-	TX_STATUS_FAIL(HOST_ABORTED);
-	TX_STATUS_FAIL(BT_RETRY);
-	TX_STATUS_FAIL(STA_INVALID);
-	TX_STATUS_FAIL(FRAG_DROPPED);
-	TX_STATUS_FAIL(TID_DISABLE);
-	TX_STATUS_FAIL(FIFO_FLUSHED);
-	TX_STATUS_FAIL(INSUFFICIENT_CF_POLL);
-	TX_STATUS_FAIL(PASSIVE_NO_RX);
-	TX_STATUS_FAIL(NO_BEACON_ON_RADAR);
+		ieee80211_tx_status_irqsafe(priv->hw, skb);
 	}
 
-	return "UNKNOWN";
+	iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
+	iwlagn_txq_check_empty(priv, sta_id, tid, scd_flow);
 
-#undef TX_STATUS_FAIL
-#undef TX_STATUS_POSTPONE
+	spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 }
-#endif /* CONFIG_IWLWIFI_DEBUG */