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--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -242,6 +242,7 @@ struct ath_atx_tid {
struct ath_atx_ac *ac;
unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
int buf_pending;
+ int bar_index;
u16 seq_start;
u16 seq_next;
u16 baw_size;
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -206,6 +206,8 @@ static void ath_tx_update_baw(struct ath
while (tid->baw_head != tid->baw_tail && !test_bit(tid->baw_head, tid->tx_buf)) {
INCR(tid->seq_start, IEEE80211_SEQ_MAX);
INCR(tid->baw_head, ATH_TID_MAX_BUFS);
+ if (tid->bar_index >= 0)
+ tid->bar_index--;
}
}
@@ -263,6 +265,7 @@ static void ath_tid_drain(struct ath_sof
tid->seq_next = tid->seq_start;
tid->baw_tail = tid->baw_head;
+ tid->bar_index = -1;
}
static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq,
@@ -561,8 +564,12 @@ static void ath_tx_complete_aggr(struct
bf = bf_next;
}
- if (bar_index >= 0)
+ if (bar_index >= 0) {
+ u16 bar_seq = ATH_BA_INDEX2SEQ(seq_first, bar_index);
ath_send_bar(tid, ATH_BA_INDEX2SEQ(seq_first, bar_index + 1));
+ if (BAW_WITHIN(tid->seq_start, tid->baw_size, bar_seq))
+ tid->bar_index = ATH_BA_INDEX(tid->seq_start, bar_seq);
+ }
/* prepend un-acked frames to the beginning of the pending frame queue */
if (!skb_queue_empty(&bf_pending)) {
@@ -789,8 +796,6 @@ static enum ATH_AGGR_STATUS ath_tx_form_
bf->bf_state.bf_type = BUF_AMPDU | BUF_AGGR;
seqno = bf->bf_state.seqno;
- if (!bf_first)
- bf_first = bf;
/* do not step over block-ack window */
if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) {
@@ -798,6 +803,21 @@ static enum ATH_AGGR_STATUS ath_tx_form_
break;
}
+ if (tid->bar_index > ATH_BA_INDEX(tid->seq_start, seqno)) {
+ struct ath_tx_status ts = {};
+ struct list_head bf_head;
+
+ INIT_LIST_HEAD(&bf_head);
+ list_add(&bf->list, &bf_head);
+ __skb_unlink(skb, &tid->buf_q);
+ ath_tx_update_baw(sc, tid, seqno);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ continue;
+ }
+
+ if (!bf_first)
+ bf_first = bf;
+
if (!rl) {
aggr_limit = ath_lookup_rate(sc, bf, tid);
rl = 1;
@@ -1141,6 +1161,7 @@ int ath_tx_aggr_start(struct ath_softc *
txtid->state |= AGGR_ADDBA_PROGRESS;
txtid->paused = true;
*ssn = txtid->seq_start = txtid->seq_next;
+ txtid->bar_index = -1;
memset(txtid->tx_buf, 0, sizeof(txtid->tx_buf));
txtid->baw_head = txtid->baw_tail = 0;
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