WLAN_STA_BLOCK_BA,
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -146,6 +146,28 @@ static void ath_set_rates(struct ieee802
+@@ -135,6 +135,9 @@ static struct ath_frame_info *get_frame_
+
+ static void ath_send_bar(struct ath_atx_tid *tid, u16 seqno)
+ {
++ if (!tid->an->sta)
++ return;
++
+ ieee80211_send_bar(tid->an->vif, tid->an->sta->addr, tid->tidno,
+ seqno << IEEE80211_SEQ_SEQ_SHIFT);
+ }
+@@ -146,6 +149,93 @@ static void ath_set_rates(struct ieee802
ARRAY_SIZE(bf->rates));
}
+ }
+}
+
++static struct ath_atx_tid *
++ath_get_skb_tid(struct ath_softc *sc, struct ath_node *an, struct sk_buff *skb)
++{
++ struct ieee80211_hdr *hdr;
++ u8 tidno = 0;
++
++ hdr = (struct ieee80211_hdr *) skb->data;
++ if (ieee80211_is_data_qos(hdr->frame_control))
++ tidno = ieee80211_get_qos_ctl(hdr)[0];
++
++ tidno &= IEEE80211_QOS_CTL_TID_MASK;
++ return ATH_AN_2_TID(an, tidno);
++}
++
++static bool ath_tid_has_buffered(struct ath_atx_tid *tid)
++{
++ return !skb_queue_empty(&tid->buf_q) || !skb_queue_empty(&tid->retry_q);
++}
++
++static struct sk_buff *ath_tid_dequeue(struct ath_atx_tid *tid)
++{
++ struct sk_buff *skb;
++
++ skb = __skb_dequeue(&tid->retry_q);
++ if (!skb)
++ skb = __skb_dequeue(&tid->buf_q);
++
++ return skb;
++}
++
++/*
++ * ath_tx_tid_change_state:
++ * - clears a-mpdu flag of previous session
++ * - force sequence number allocation to fix next BlockAck Window
++ */
++static void
++ath_tx_tid_change_state(struct ath_softc *sc, struct ath_atx_tid *tid)
++{
++ struct ath_txq *txq = tid->ac->txq;
++ struct ieee80211_tx_info *tx_info;
++ struct sk_buff *skb, *tskb;
++ struct ath_buf *bf;
++ struct ath_frame_info *fi;
++
++ skb_queue_walk_safe(&tid->buf_q, skb, tskb) {
++ fi = get_frame_info(skb);
++ bf = fi->bf;
++
++ tx_info = IEEE80211_SKB_CB(skb);
++ tx_info->flags &= ~IEEE80211_TX_CTL_AMPDU;
++
++ if (bf)
++ continue;
++
++ bf = ath_tx_setup_buffer(sc, txq, tid, skb);
++ if (!bf) {
++ __skb_unlink(skb, &tid->buf_q);
++ ath_txq_skb_done(sc, txq, skb);
++ ieee80211_free_txskb(sc->hw, skb);
++ continue;
++ }
++ }
++
++}
++
static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
{
struct ath_txq *txq = tid->ac->txq;
-@@ -167,6 +189,7 @@ static void ath_tx_flush_tid(struct ath_
+@@ -160,27 +250,22 @@ static void ath_tx_flush_tid(struct ath_
+
+ memset(&ts, 0, sizeof(ts));
+
+- while ((skb = __skb_dequeue(&tid->buf_q))) {
++ while ((skb = __skb_dequeue(&tid->retry_q))) {
+ fi = get_frame_info(skb);
+ bf = fi->bf;
+-
if (!bf) {
+- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
+- if (!bf) {
+- ieee80211_free_txskb(sc->hw, skb);
+- continue;
+- }
++ ath_txq_skb_done(sc, txq, skb);
++ ieee80211_free_txskb(sc->hw, skb);
++ continue;
+ }
+
+- if (fi->retries) {
+- list_add_tail(&bf->list, &bf_head);
++ if (fi->baw_tracked) {
+ ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
+- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ sendbar = true;
+- } else {
+- ath_set_rates(tid->an->vif, tid->an->sta, bf);
+- ath_tx_send_normal(sc, txq, NULL, skb);
+ }
++
++ list_add_tail(&bf->list, &bf_head);
++ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ }
+
+ if (sendbar) {
+@@ -209,13 +294,16 @@ static void ath_tx_update_baw(struct ath
+ }
+
+ static void ath_tx_addto_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
+- u16 seqno)
++ struct ath_buf *bf)
+ {
++ struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
++ u16 seqno = bf->bf_state.seqno;
+ int index, cindex;
+
+ index = ATH_BA_INDEX(tid->seq_start, seqno);
+ cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
+ __set_bit(cindex, tid->tx_buf);
++ fi->baw_tracked = 1;
+
+ if (index >= ((tid->baw_tail - tid->baw_head) &
+ (ATH_TID_MAX_BUFS - 1))) {
+@@ -243,7 +331,7 @@ static void ath_tid_drain(struct ath_sof
+ memset(&ts, 0, sizeof(ts));
+ INIT_LIST_HEAD(&bf_head);
+
+- while ((skb = __skb_dequeue(&tid->buf_q))) {
++ while ((skb = ath_tid_dequeue(tid))) {
+ fi = get_frame_info(skb);
+ bf = fi->bf;
+
+@@ -380,7 +468,6 @@ static void ath_tx_complete_aggr(struct
+ struct ieee80211_tx_rate rates[4];
+ struct ath_frame_info *fi;
+ int nframes;
+- u8 tidno;
+ bool flush = !!(ts->ts_status & ATH9K_TX_FLUSH);
+ int i, retries;
+ int bar_index = -1;
+@@ -417,8 +504,7 @@ static void ath_tx_complete_aggr(struct
+ }
+
+ an = (struct ath_node *)sta->drv_priv;
+- tidno = ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
+- tid = ATH_AN_2_TID(an, tidno);
++ tid = ath_get_skb_tid(sc, an, skb);
+ seq_first = tid->seq_start;
+ isba = ts->ts_flags & ATH9K_TX_BA;
+
+@@ -430,7 +516,7 @@ static void ath_tx_complete_aggr(struct
+ * Only BlockAcks have a TID and therefore normal Acks cannot be
+ * checked
+ */
+- if (isba && tidno != ts->tid)
++ if (isba && tid->tidno != ts->tid)
+ txok = false;
+
+ isaggr = bf_isaggr(bf);
+@@ -466,7 +552,8 @@ static void ath_tx_complete_aggr(struct
+ tx_info = IEEE80211_SKB_CB(skb);
+ fi = get_frame_info(skb);
+
+- if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) {
++ if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno) ||
++ !tid->active) {
+ /*
+ * Outside of the current BlockAck window,
+ * maybe part of a previous session
+@@ -560,7 +647,7 @@ static void ath_tx_complete_aggr(struct
+ if (an->sleeping)
+ ieee80211_sta_set_buffered(sta, tid->tidno, true);
+
+- skb_queue_splice(&bf_pending, &tid->buf_q);
++ skb_queue_splice_tail(&bf_pending, &tid->retry_q);
+ if (!an->sleeping) {
+ ath_tx_queue_tid(txq, tid);
+
+@@ -618,7 +705,7 @@ static void ath_tx_process_buffer(struct
+ } else
+ ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
+
+- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) && !flush)
++ if (!flush)
+ ath_txq_schedule(sc, txq);
+ }
+
+@@ -792,15 +879,20 @@ static int ath_compute_num_delims(struct
+
+ static struct ath_buf *
+ ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
+- struct ath_atx_tid *tid)
++ struct ath_atx_tid *tid, struct sk_buff_head **q)
+ {
++ struct ieee80211_tx_info *tx_info;
+ struct ath_frame_info *fi;
+ struct sk_buff *skb;
+ struct ath_buf *bf;
+ u16 seqno;
+
+ while (1) {
+- skb = skb_peek(&tid->buf_q);
++ *q = &tid->retry_q;
++ if (skb_queue_empty(*q))
++ *q = &tid->buf_q;
++
++ skb = skb_peek(*q);
+ if (!skb)
+ break;
+
+@@ -810,11 +902,22 @@ ath_tx_get_tid_subframe(struct ath_softc
bf = ath_tx_setup_buffer(sc, txq, tid, skb);
- if (!bf) {
-+ ath_txq_skb_done(sc, txq, skb);
- ieee80211_free_txskb(sc->hw, skb);
- continue;
- }
-@@ -811,6 +834,7 @@ ath_tx_get_tid_subframe(struct ath_softc
if (!bf) {
- __skb_unlink(skb, &tid->buf_q);
+- __skb_unlink(skb, &tid->buf_q);
++ __skb_unlink(skb, *q);
+ ath_txq_skb_done(sc, txq, skb);
ieee80211_free_txskb(sc->hw, skb);
continue;
}
-@@ -1824,6 +1848,7 @@ static void ath_tx_send_ampdu(struct ath
- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
- if (!bf) {
-+ ath_txq_skb_done(sc, txq, skb);
- ieee80211_free_txskb(sc->hw, skb);
++ bf->bf_next = NULL;
++ bf->bf_lastbf = bf;
++
++ tx_info = IEEE80211_SKB_CB(skb);
++ tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
++ if (!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
++ bf->bf_state.bf_type = 0;
++ return bf;
++ }
++
+ bf->bf_state.bf_type = BUF_AMPDU | BUF_AGGR;
+ seqno = bf->bf_state.seqno;
+
+@@ -828,73 +931,52 @@ ath_tx_get_tid_subframe(struct ath_softc
+
+ INIT_LIST_HEAD(&bf_head);
+ list_add(&bf->list, &bf_head);
+- __skb_unlink(skb, &tid->buf_q);
++ __skb_unlink(skb, *q);
+ ath_tx_update_baw(sc, tid, seqno);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
+ continue;
+ }
+
+- bf->bf_next = NULL;
+- bf->bf_lastbf = bf;
+ return bf;
+ }
+
+ return NULL;
+ }
+
+-static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
+- struct ath_txq *txq,
+- struct ath_atx_tid *tid,
+- struct list_head *bf_q,
+- int *aggr_len)
++static bool
++ath_tx_form_aggr(struct ath_softc *sc, struct ath_txq *txq,
++ struct ath_atx_tid *tid, struct list_head *bf_q,
++ struct ath_buf *bf_first, struct sk_buff_head *tid_q,
++ int *aggr_len)
+ {
+ #define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
+- struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL;
+- int rl = 0, nframes = 0, ndelim, prev_al = 0;
++ struct ath_buf *bf = bf_first, *bf_prev = NULL;
++ int nframes = 0, ndelim;
+ u16 aggr_limit = 0, al = 0, bpad = 0,
+- al_delta, h_baw = tid->baw_size / 2;
+- enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
++ al_delta, h_baw = tid->baw_size / 2;
+ struct ieee80211_tx_info *tx_info;
+ struct ath_frame_info *fi;
+ struct sk_buff *skb;
++ bool closed = false;
+
+- do {
+- bf = ath_tx_get_tid_subframe(sc, txq, tid);
+- if (!bf) {
+- status = ATH_AGGR_BAW_CLOSED;
+- break;
+- }
++ bf = bf_first;
++ aggr_limit = ath_lookup_rate(sc, bf, tid);
+
++ do {
+ skb = bf->bf_mpdu;
+ fi = get_frame_info(skb);
+
+- if (!bf_first)
+- bf_first = bf;
+-
+- if (!rl) {
+- ath_set_rates(tid->an->vif, tid->an->sta, bf);
+- aggr_limit = ath_lookup_rate(sc, bf, tid);
+- rl = 1;
+- }
+-
+ /* do not exceed aggregation limit */
+ al_delta = ATH_AGGR_DELIM_SZ + fi->framelen;
++ if (nframes) {
++ if (aggr_limit < al + bpad + al_delta ||
++ ath_lookup_legacy(bf) || nframes >= h_baw)
++ break;
+
+- if (nframes &&
+- ((aggr_limit < (al + bpad + al_delta + prev_al)) ||
+- ath_lookup_legacy(bf))) {
+- status = ATH_AGGR_LIMITED;
+- break;
+- }
+-
+- tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
+- if (nframes && (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
+- break;
+-
+- /* do not exceed subframe limit */
+- if (nframes >= min((int)h_baw, ATH_AMPDU_SUBFRAME_DEFAULT)) {
+- status = ATH_AGGR_LIMITED;
+- break;
++ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
++ if ((tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) ||
++ !(tx_info->flags & IEEE80211_TX_CTL_AMPDU))
++ break;
+ }
+
+ /* add padding for previous frame to aggregation length */
+@@ -912,22 +994,37 @@ static enum ATH_AGGR_STATUS ath_tx_form_
+ bf->bf_next = NULL;
+
+ /* link buffers of this frame to the aggregate */
+- if (!fi->retries)
+- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
++ if (!fi->baw_tracked)
++ ath_tx_addto_baw(sc, tid, bf);
+ bf->bf_state.ndelim = ndelim;
+
+- __skb_unlink(skb, &tid->buf_q);
++ __skb_unlink(skb, tid_q);
+ list_add_tail(&bf->list, bf_q);
+ if (bf_prev)
+ bf_prev->bf_next = bf;
+
+ bf_prev = bf;
+
+- } while (!skb_queue_empty(&tid->buf_q));
++ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
++ if (!bf) {
++ closed = true;
++ break;
++ }
++ } while (ath_tid_has_buffered(tid));
++
++ bf = bf_first;
++ bf->bf_lastbf = bf_prev;
++
++ if (bf == bf_prev) {
++ al = get_frame_info(bf->bf_mpdu)->framelen;
++ bf->bf_state.bf_type = BUF_AMPDU;
++ } else {
++ TX_STAT_INC(txq->axq_qnum, a_aggr);
++ }
+
+ *aggr_len = al;
+
+- return status;
++ return closed;
+ #undef PADBYTES
+ }
+
+@@ -1188,53 +1285,86 @@ static void ath_tx_fill_desc(struct ath_
+ }
+ }
+
+-static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
+- struct ath_atx_tid *tid)
++static void
++ath_tx_form_burst(struct ath_softc *sc, struct ath_txq *txq,
++ struct ath_atx_tid *tid, struct list_head *bf_q,
++ struct ath_buf *bf_first, struct sk_buff_head *tid_q)
+ {
+- struct ath_buf *bf;
+- enum ATH_AGGR_STATUS status;
+- struct ieee80211_tx_info *tx_info;
+- struct list_head bf_q;
+- int aggr_len;
++ struct ath_buf *bf = bf_first, *bf_prev = NULL;
++ struct sk_buff *skb;
++ int nframes = 0;
+
+ do {
+- if (skb_queue_empty(&tid->buf_q))
+- return;
++ struct ieee80211_tx_info *tx_info;
++ skb = bf->bf_mpdu;
+
+- INIT_LIST_HEAD(&bf_q);
++ nframes++;
++ __skb_unlink(skb, tid_q);
++ list_add_tail(&bf->list, bf_q);
++ if (bf_prev)
++ bf_prev->bf_next = bf;
++ bf_prev = bf;
+
+- status = ath_tx_form_aggr(sc, txq, tid, &bf_q, &aggr_len);
++ if (nframes >= 2)
++ break;
+
+- /*
+- * no frames picked up to be aggregated;
+- * block-ack window is not open.
+- */
+- if (list_empty(&bf_q))
++ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
++ if (!bf)
+ break;
+
+- bf = list_first_entry(&bf_q, struct ath_buf, list);
+- bf->bf_lastbf = list_entry(bf_q.prev, struct ath_buf, list);
+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
++ if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
++ break;
+
+- if (tid->ac->clear_ps_filter) {
+- tid->ac->clear_ps_filter = false;
+- tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+- } else {
+- tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
+- }
++ ath_set_rates(tid->an->vif, tid->an->sta, bf);
++ } while (1);
++}
+
+- /* if only one frame, send as non-aggregate */
+- if (bf == bf->bf_lastbf) {
+- aggr_len = get_frame_info(bf->bf_mpdu)->framelen;
+- bf->bf_state.bf_type = BUF_AMPDU;
+- } else {
+- TX_STAT_INC(txq->axq_qnum, a_aggr);
+- }
++static bool ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
++ struct ath_atx_tid *tid, bool *stop)
++{
++ struct ath_buf *bf;
++ struct ieee80211_tx_info *tx_info;
++ struct sk_buff_head *tid_q;
++ struct list_head bf_q;
++ int aggr_len = 0;
++ bool aggr, last = true;
++
++ if (!ath_tid_has_buffered(tid))
++ return false;
++
++ INIT_LIST_HEAD(&bf_q);
++
++ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
++ if (!bf)
++ return false;
++
++ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
++ aggr = !!(tx_info->flags & IEEE80211_TX_CTL_AMPDU);
++ if ((aggr && txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) ||
++ (!aggr && txq->axq_depth >= ATH_NON_AGGR_MIN_QDEPTH)) {
++ *stop = true;
++ return false;
++ }
++
++ ath_set_rates(tid->an->vif, tid->an->sta, bf);
++ if (aggr)
++ last = ath_tx_form_aggr(sc, txq, tid, &bf_q, bf,
++ tid_q, &aggr_len);
++ else
++ ath_tx_form_burst(sc, txq, tid, &bf_q, bf, tid_q);
++
++ if (list_empty(&bf_q))
++ return false;
++
++ if (tid->ac->clear_ps_filter || tid->an->no_ps_filter) {
++ tid->ac->clear_ps_filter = false;
++ tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
++ }
+
+- ath_tx_fill_desc(sc, bf, txq, aggr_len);
+- ath_tx_txqaddbuf(sc, txq, &bf_q, false);
+- } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
+- status != ATH_AGGR_BAW_CLOSED);
++ ath_tx_fill_desc(sc, bf, txq, aggr_len);
++ ath_tx_txqaddbuf(sc, txq, &bf_q, false);
++ return true;
+ }
+
+ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
+@@ -1258,6 +1388,9 @@ int ath_tx_aggr_start(struct ath_softc *
+ an->mpdudensity = density;
+ }
+
++ /* force sequence number allocation for pending frames */
++ ath_tx_tid_change_state(sc, txtid);
++
+ txtid->active = true;
+ txtid->paused = true;
+ *ssn = txtid->seq_start = txtid->seq_next;
+@@ -1277,8 +1410,9 @@ void ath_tx_aggr_stop(struct ath_softc *
+
+ ath_txq_lock(sc, txq);
+ txtid->active = false;
+- txtid->paused = true;
++ txtid->paused = false;
+ ath_tx_flush_tid(sc, txtid);
++ ath_tx_tid_change_state(sc, txtid);
+ ath_txq_unlock_complete(sc, txq);
+ }
+
+@@ -1302,7 +1436,7 @@ void ath_tx_aggr_sleep(struct ieee80211_
+
+ ath_txq_lock(sc, txq);
+
+- buffered = !skb_queue_empty(&tid->buf_q);
++ buffered = ath_tid_has_buffered(tid);
+
+ tid->sched = false;
+ list_del(&tid->list);
+@@ -1334,7 +1468,7 @@ void ath_tx_aggr_wakeup(struct ath_softc
+ ath_txq_lock(sc, txq);
+ ac->clear_ps_filter = true;
+
+- if (!skb_queue_empty(&tid->buf_q) && !tid->paused) {
++ if (!tid->paused && ath_tid_has_buffered(tid)) {
+ ath_tx_queue_tid(txq, tid);
+ ath_txq_schedule(sc, txq);
+ }
+@@ -1359,7 +1493,7 @@ void ath_tx_aggr_resume(struct ath_softc
+ tid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor;
+ tid->paused = false;
+
+- if (!skb_queue_empty(&tid->buf_q)) {
++ if (ath_tid_has_buffered(tid)) {
+ ath_tx_queue_tid(txq, tid);
+ ath_txq_schedule(sc, txq);
+ }
+@@ -1379,6 +1513,7 @@ void ath9k_release_buffered_frames(struc
+ struct ieee80211_tx_info *info;
+ struct list_head bf_q;
+ struct ath_buf *bf_tail = NULL, *bf;
++ struct sk_buff_head *tid_q;
+ int sent = 0;
+ int i;
+
+@@ -1394,15 +1529,15 @@ void ath9k_release_buffered_frames(struc
+ continue;
+
+ ath_txq_lock(sc, tid->ac->txq);
+- while (!skb_queue_empty(&tid->buf_q) && nframes > 0) {
+- bf = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq, tid);
++ while (nframes > 0) {
++ bf = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq, tid, &tid_q);
+ if (!bf)
+ break;
+
+- __skb_unlink(bf->bf_mpdu, &tid->buf_q);
++ __skb_unlink(bf->bf_mpdu, tid_q);
+ list_add_tail(&bf->list, &bf_q);
+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
+- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
++ ath_tx_addto_baw(sc, tid, bf);
+ bf->bf_state.bf_type &= ~BUF_AGGR;
+ if (bf_tail)
+ bf_tail->bf_next = bf;
+@@ -1412,7 +1547,7 @@ void ath9k_release_buffered_frames(struc
+ sent++;
+ TX_STAT_INC(txq->axq_qnum, a_queued_hw);
+
+- if (skb_queue_empty(&tid->buf_q))
++ if (an->sta && !ath_tid_has_buffered(tid))
+ ieee80211_sta_set_buffered(an->sta, i, false);
+ }
+ ath_txq_unlock_complete(sc, tid->ac->txq);
+@@ -1665,25 +1800,27 @@ void ath_tx_cleanupq(struct ath_softc *s
+ */
+ void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq)
+ {
+- struct ath_atx_ac *ac, *ac_tmp, *last_ac;
++ struct ath_atx_ac *ac, *last_ac;
+ struct ath_atx_tid *tid, *last_tid;
++ bool sent = false;
+
+ if (test_bit(SC_OP_HW_RESET, &sc->sc_flags) ||
+- list_empty(&txq->axq_acq) ||
+- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
++ list_empty(&txq->axq_acq))
return;
+
+ rcu_read_lock();
+
+- ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list);
+ last_ac = list_entry(txq->axq_acq.prev, struct ath_atx_ac, list);
++ while (!list_empty(&txq->axq_acq)) {
++ bool stop = false;
+
+- list_for_each_entry_safe(ac, ac_tmp, &txq->axq_acq, list) {
++ ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list);
+ last_tid = list_entry(ac->tid_q.prev, struct ath_atx_tid, list);
+ list_del(&ac->list);
+ ac->sched = false;
+
+ while (!list_empty(&ac->tid_q)) {
++
+ tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
+ list);
+ list_del(&tid->list);
+@@ -1692,17 +1829,17 @@ void ath_txq_schedule(struct ath_softc *
+ if (tid->paused)
+ continue;
+
+- ath_tx_sched_aggr(sc, txq, tid);
++ if (ath_tx_sched_aggr(sc, txq, tid, &stop))
++ sent = true;
+
+ /*
+ * add tid to round-robin queue if more frames
+ * are pending for the tid
+ */
+- if (!skb_queue_empty(&tid->buf_q))
++ if (ath_tid_has_buffered(tid))
+ ath_tx_queue_tid(txq, tid);
+
+- if (tid == last_tid ||
+- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
++ if (stop || tid == last_tid)
+ break;
+ }
+
+@@ -1711,9 +1848,17 @@ void ath_txq_schedule(struct ath_softc *
+ list_add_tail(&ac->list, &txq->axq_acq);
+ }
+
+- if (ac == last_ac ||
+- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
++ if (stop)
+ break;
++
++ if (ac == last_ac) {
++ if (!sent)
++ break;
++
++ sent = false;
++ last_ac = list_entry(txq->axq_acq.prev,
++ struct ath_atx_ac, list);
++ }
+ }
+
+ rcu_read_unlock();
+@@ -1792,57 +1937,6 @@ static void ath_tx_txqaddbuf(struct ath_
+ }
+ }
+
+-static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_txq *txq,
+- struct ath_atx_tid *tid, struct sk_buff *skb,
+- struct ath_tx_control *txctl)
+-{
+- struct ath_frame_info *fi = get_frame_info(skb);
+- struct list_head bf_head;
+- struct ath_buf *bf;
+-
+- /*
+- * Do not queue to h/w when any of the following conditions is true:
+- * - there are pending frames in software queue
+- * - the TID is currently paused for ADDBA/BAR request
+- * - seqno is not within block-ack window
+- * - h/w queue depth exceeds low water mark
+- */
+- if ((!skb_queue_empty(&tid->buf_q) || tid->paused ||
+- !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) ||
+- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) &&
+- txq != sc->tx.uapsdq) {
+- /*
+- * Add this frame to software queue for scheduling later
+- * for aggregation.
+- */
+- TX_STAT_INC(txq->axq_qnum, a_queued_sw);
+- __skb_queue_tail(&tid->buf_q, skb);
+- if (!txctl->an || !txctl->an->sleeping)
+- ath_tx_queue_tid(txq, tid);
+- return;
+- }
+-
+- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
+- if (!bf) {
+- ieee80211_free_txskb(sc->hw, skb);
+- return;
+- }
+-
+- ath_set_rates(tid->an->vif, tid->an->sta, bf);
+- bf->bf_state.bf_type = BUF_AMPDU;
+- INIT_LIST_HEAD(&bf_head);
+- list_add(&bf->list, &bf_head);
+-
+- /* Add sub-frame to BAW */
+- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
+-
+- /* Queue to h/w without aggregation */
+- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
+- bf->bf_lastbf = bf;
+- ath_tx_fill_desc(sc, bf, txq, fi->framelen);
+- ath_tx_txqaddbuf(sc, txq, &bf_head, false);
+-}
+-
+ static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
+ struct ath_atx_tid *tid, struct sk_buff *skb)
+ {
+@@ -1985,6 +2079,7 @@ static int ath_tx_prepare(struct ieee802
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_sta *sta = txctl->sta;
+ struct ieee80211_vif *vif = info->control.vif;
++ struct ath_vif *avp;
+ struct ath_softc *sc = hw->priv;
+ int frmlen = skb->len + FCS_LEN;
+ int padpos, padsize;
+@@ -1992,6 +2087,10 @@ static int ath_tx_prepare(struct ieee802
+ /* NOTE: sta can be NULL according to net/mac80211.h */
+ if (sta)
+ txctl->an = (struct ath_node *)sta->drv_priv;
++ else if (vif && ieee80211_is_data(hdr->frame_control)) {
++ avp = (void *)vif->drv_priv;
++ txctl->an = &avp->mcast_node;
++ }
+
+ if (info->control.hw_key)
+ frmlen += info->control.hw_key->icv_len;
+@@ -2041,7 +2140,6 @@ int ath_tx_start(struct ieee80211_hw *hw
+ struct ath_txq *txq = txctl->txq;
+ struct ath_atx_tid *tid = NULL;
+ struct ath_buf *bf;
+- u8 tidno;
+ int q;
+ int ret;
+
+@@ -2069,27 +2167,31 @@ int ath_tx_start(struct ieee80211_hw *hw
+ ath_txq_unlock(sc, txq);
+ txq = sc->tx.uapsdq;
+ ath_txq_lock(sc, txq);
+- }
+-
+- if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
+- tidno = ieee80211_get_qos_ctl(hdr)[0] &
+- IEEE80211_QOS_CTL_TID_MASK;
+- tid = ATH_AN_2_TID(txctl->an, tidno);
++ } else if (txctl->an &&
++ ieee80211_is_data_present(hdr->frame_control)) {
++ tid = ath_get_skb_tid(sc, txctl->an, skb);
+
+ WARN_ON(tid->ac->txq != txctl->txq);
+- }
+
+- if ((info->flags & IEEE80211_TX_CTL_AMPDU) && tid) {
++ if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
++ tid->ac->clear_ps_filter = true;
++
+ /*
+- * Try aggregation if it's a unicast data frame
+- * and the destination is HT capable.
++ * Add this frame to software queue for scheduling later
++ * for aggregation.
+ */
+- ath_tx_send_ampdu(sc, txq, tid, skb, txctl);
++ TX_STAT_INC(txq->axq_qnum, a_queued_sw);
++ __skb_queue_tail(&tid->buf_q, skb);
++ if (!txctl->an->sleeping)
++ ath_tx_queue_tid(txq, tid);
++
++ ath_txq_schedule(sc, txq);
+ goto out;
}
-@@ -2090,6 +2115,7 @@ int ath_tx_start(struct ieee80211_hw *hw
bf = ath_tx_setup_buffer(sc, txq, tid, skb);
if (!bf) {
if (txctl->paprd)
dev_kfree_skb_any(skb);
else
-@@ -2189,7 +2215,7 @@ static void ath_tx_complete(struct ath_s
+@@ -2189,7 +2291,7 @@ static void ath_tx_complete(struct ath_s
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_hdr * hdr = (struct ieee80211_hdr *)skb->data;
unsigned long flags;
ath_dbg(common, XMIT, "TX complete: skb: %p\n", skb);
-@@ -2225,21 +2251,7 @@ static void ath_tx_complete(struct ath_s
+@@ -2225,21 +2327,7 @@ static void ath_tx_complete(struct ath_s
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
__skb_queue_tail(&txq->complete_q, skb);
}
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
+@@ -2360,8 +2448,7 @@ static void ath_tx_processq(struct ath_s
+
+ if (list_empty(&txq->axq_q)) {
+ txq->axq_link = NULL;
+- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
+- ath_txq_schedule(sc, txq);
++ ath_txq_schedule(sc, txq);
+ break;
+ }
+ bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
+@@ -2583,6 +2670,7 @@ void ath_tx_node_init(struct ath_softc *
+ tid->paused = false;
+ tid->active = false;
+ __skb_queue_head_init(&tid->buf_q);
++ __skb_queue_head_init(&tid->retry_q);
+ acno = TID_TO_WME_AC(tidno);
+ tid->ac = &an->ac[acno];
+ }
+@@ -2590,6 +2678,7 @@ void ath_tx_node_init(struct ath_softc *
+ for (acno = 0, ac = &an->ac[acno];
+ acno < IEEE80211_NUM_ACS; acno++, ac++) {
+ ac->sched = false;
++ ac->clear_ps_filter = true;
+ ac->txq = sc->tx.txq_map[acno];
+ INIT_LIST_HEAD(&ac->tid_q);
+ }
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -2094,7 +2094,7 @@ static void ath9k_wow_add_pattern(struct
+@@ -966,6 +966,8 @@ static int ath9k_add_interface(struct ie
+ struct ath_softc *sc = hw->priv;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
++ struct ath_vif *avp = (void *)vif->drv_priv;
++ struct ath_node *an = &avp->mcast_node;
+
+ mutex_lock(&sc->mutex);
+
+@@ -979,6 +981,12 @@ static int ath9k_add_interface(struct ie
+ if (ath9k_uses_beacons(vif->type))
+ ath9k_beacon_assign_slot(sc, vif);
+
++ an->sc = sc;
++ an->sta = NULL;
++ an->vif = vif;
++ an->no_ps_filter = true;
++ ath_tx_node_init(sc, an);
++
+ mutex_unlock(&sc->mutex);
+ return 0;
+ }
+@@ -1016,6 +1024,7 @@ static void ath9k_remove_interface(struc
+ {
+ struct ath_softc *sc = hw->priv;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
++ struct ath_vif *avp = (void *)vif->drv_priv;
+
+ ath_dbg(common, CONFIG, "Detach Interface\n");
+
+@@ -1030,6 +1039,8 @@ static void ath9k_remove_interface(struc
+ ath9k_calculate_summary_state(hw, NULL);
+ ath9k_ps_restore(sc);
+
++ ath_tx_node_cleanup(sc, &avp->mcast_node);
++
+ mutex_unlock(&sc->mutex);
+ }
+
+@@ -1374,9 +1385,6 @@ static void ath9k_sta_notify(struct ieee
+ struct ath_softc *sc = hw->priv;
+ struct ath_node *an = (struct ath_node *) sta->drv_priv;
+
+- if (!sta->ht_cap.ht_supported)
+- return;
+-
+ switch (cmd) {
+ case STA_NOTIFY_SLEEP:
+ an->sleeping = true;
+@@ -2094,7 +2102,7 @@ static void ath9k_wow_add_pattern(struct
{
struct ath_hw *ah = sc->sc_ah;
struct ath9k_wow_pattern *wow_pattern = NULL;
#define REALTEK_USB_VENQT_READ 0xC0
#define REALTEK_USB_VENQT_WRITE 0x40
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -137,7 +137,8 @@ int ath_descdma_setup(struct ath_softc *
+ #define ATH_AGGR_ENCRYPTDELIM 10
+ /* minimum h/w qdepth to be sustained to maximize aggregation */
+ #define ATH_AGGR_MIN_QDEPTH 2
+-#define ATH_AMPDU_SUBFRAME_DEFAULT 32
++/* minimum h/w qdepth for non-aggregated traffic */
++#define ATH_NON_AGGR_MIN_QDEPTH 8
+
+ #define IEEE80211_SEQ_SEQ_SHIFT 4
+ #define IEEE80211_SEQ_MAX 4096
+@@ -174,12 +175,6 @@ int ath_descdma_setup(struct ath_softc *
+
+ #define ATH_TX_COMPLETE_POLL_INT 1000
+
+-enum ATH_AGGR_STATUS {
+- ATH_AGGR_DONE,
+- ATH_AGGR_BAW_CLOSED,
+- ATH_AGGR_LIMITED,
+-};
+-
+ #define ATH_TXFIFO_DEPTH 8
+ struct ath_txq {
+ int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
+@@ -212,8 +207,9 @@ struct ath_frame_info {
+ int framelen;
+ enum ath9k_key_type keytype;
+ u8 keyix;
+- u8 retries;
+ u8 rtscts_rate;
++ u8 retries : 7;
++ u8 baw_tracked : 1;
+ };
+
+ struct ath_buf_state {
+@@ -241,6 +237,7 @@ struct ath_buf {
+ struct ath_atx_tid {
+ struct list_head list;
+ struct sk_buff_head buf_q;
++ struct sk_buff_head retry_q;
+ struct ath_node *an;
+ struct ath_atx_ac *ac;
+ unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
+@@ -268,6 +265,7 @@ struct ath_node {
+ u8 mpdudensity;
+
+ bool sleeping;
++ bool no_ps_filter;
+
+ #if defined(CPTCFG_MAC80211_DEBUGFS) && defined(CPTCFG_ATH9K_DEBUGFS)
+ struct dentry *node_stat;
+@@ -367,6 +365,7 @@ void ath9k_release_buffered_frames(struc
+ /********/
+
+ struct ath_vif {
++ struct ath_node mcast_node;
+ int av_bslot;
+ bool primary_sta_vif;
+ __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -607,6 +607,28 @@ static ssize_t read_file_xmit(struct fil
+ return retval;
+ }
+
++static ssize_t print_queue(struct ath_softc *sc, struct ath_txq *txq,
++ char *buf, ssize_t size)
++{
++ ssize_t len = 0;
++
++ ath_txq_lock(sc, txq);
++
++ len += snprintf(buf + len, size - len, "%s: %d ",
++ "qnum", txq->axq_qnum);
++ len += snprintf(buf + len, size - len, "%s: %2d ",
++ "qdepth", txq->axq_depth);
++ len += snprintf(buf + len, size - len, "%s: %2d ",
++ "ampdu-depth", txq->axq_ampdu_depth);
++ len += snprintf(buf + len, size - len, "%s: %3d ",
++ "pending", txq->pending_frames);
++ len += snprintf(buf + len, size - len, "%s: %d\n",
++ "stopped", txq->stopped);
++
++ ath_txq_unlock(sc, txq);
++ return len;
++}
++
+ static ssize_t read_file_queues(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+ {
+@@ -624,24 +646,13 @@ static ssize_t read_file_queues(struct f
+
+ for (i = 0; i < IEEE80211_NUM_ACS; i++) {
+ txq = sc->tx.txq_map[i];
+- len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
+-
+- ath_txq_lock(sc, txq);
+-
+- len += snprintf(buf + len, size - len, "%s: %d ",
+- "qnum", txq->axq_qnum);
+- len += snprintf(buf + len, size - len, "%s: %2d ",
+- "qdepth", txq->axq_depth);
+- len += snprintf(buf + len, size - len, "%s: %2d ",
+- "ampdu-depth", txq->axq_ampdu_depth);
+- len += snprintf(buf + len, size - len, "%s: %3d ",
+- "pending", txq->pending_frames);
+- len += snprintf(buf + len, size - len, "%s: %d\n",
+- "stopped", txq->stopped);
+-
+- ath_txq_unlock(sc, txq);
++ len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
++ len += print_queue(sc, txq, buf + len, size - len);
+ }
+
++ len += snprintf(buf + len, size - len, "(CAB): ");
++ len += print_queue(sc, sc->beacon.cabq, buf + len, size - len);
++
+ if (len > size)
+ len = size;
+
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -1735,6 +1735,53 @@ void ath9k_deinit_debug(struct ath_softc
+@@ -1746,6 +1746,53 @@ void ath9k_deinit_debug(struct ath_softc
}
}
int ath9k_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
-@@ -1752,6 +1799,8 @@ int ath9k_init_debug(struct ath_hw *ah)
+@@ -1763,6 +1810,8 @@ int ath9k_init_debug(struct ath_hw *ah)
ath9k_dfs_init_debug(sc);
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -701,6 +701,7 @@ struct ath_softc {
+@@ -700,6 +700,7 @@ struct ath_softc {
struct ieee80211_hw *hw;
struct device *dev;
struct survey_info *cur_survey;
struct survey_info survey[ATH9K_NUM_CHANNELS];
-@@ -905,6 +906,7 @@ struct fft_sample_ht20 {
+@@ -904,6 +905,7 @@ struct fft_sample_ht20 {
u8 data[SPECTRAL_HT20_NUM_BINS];
} __packed;
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -1782,6 +1782,50 @@ static const struct file_operations fops
+@@ -1793,6 +1793,50 @@ static const struct file_operations fops
.owner = THIS_MODULE
};
int ath9k_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
-@@ -1801,6 +1845,8 @@ int ath9k_init_debug(struct ath_hw *ah)
+@@ -1812,6 +1856,8 @@ int ath9k_init_debug(struct ath_hw *ah)
debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
&fops_eeprom);
debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -1139,7 +1139,7 @@ int ath9k_spectral_scan_config(struct ie
+@@ -1150,7 +1150,7 @@ int ath9k_spectral_scan_config(struct ie
return 0;
}
{
struct ath_softc *sc = hw->priv;
struct ath_hw *ah = sc->sc_ah;
-@@ -1195,9 +1195,11 @@ static int ath9k_config(struct ieee80211
+@@ -1206,9 +1206,11 @@ static int ath9k_config(struct ieee80211
struct ieee80211_channel *curchan = hw->conf.chandef.chan;
enum nl80211_channel_type channel_type =
cfg80211_get_chandef_type(&conf->chandef);
if (ah->curchan)
old_pos = ah->curchan - &ah->channels[0];
-@@ -1233,7 +1235,23 @@ static int ath9k_config(struct ieee80211
+@@ -1244,7 +1246,23 @@ static int ath9k_config(struct ieee80211
memset(&sc->survey[pos], 0, sizeof(struct survey_info));
}
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -1258,6 +1258,8 @@ int ath9k_config(struct ieee80211_hw *hw
+@@ -1269,6 +1269,8 @@ int ath9k_config(struct ieee80211_hw *hw
return -EINVAL;
}
/*
* The most recent snapshot of channel->noisefloor for the old
* channel is only available after the hardware reset. Copy it to
-@@ -1294,6 +1296,7 @@ int ath9k_config(struct ieee80211_hw *hw
+@@ -1305,6 +1307,7 @@ int ath9k_config(struct ieee80211_hw *hw
sc->config.txpowlimit = 2 * conf->power_level;
ath9k_cmn_update_txpow(ah, sc->curtxpow,
sc->config.txpowlimit, &sc->curtxpow);
if (ant_gain > max_gain)
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -1292,7 +1292,10 @@ int ath9k_config(struct ieee80211_hw *hw
+@@ -1303,7 +1303,10 @@ int ath9k_config(struct ieee80211_hw *hw
}
if (changed & IEEE80211_CONF_CHANGE_POWER) {
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -557,6 +557,9 @@ struct ath9k_wow_pattern {
+@@ -556,6 +556,9 @@ struct ath9k_wow_pattern {
void ath_init_leds(struct ath_softc *sc);
void ath_deinit_leds(struct ath_softc *sc);
void ath_fill_led_pin(struct ath_softc *sc);
#else
static inline void ath_init_leds(struct ath_softc *sc)
{
-@@ -697,6 +700,13 @@ enum spectral_mode {
+@@ -696,6 +699,13 @@ enum spectral_mode {
SPECTRAL_CHANSCAN,
};
struct ath_softc {
struct ieee80211_hw *hw;
struct device *dev;
-@@ -739,9 +749,8 @@ struct ath_softc {
+@@ -738,9 +748,8 @@ struct ath_softc {
struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
#ifdef CPTCFG_MAC80211_LEDS
#endif
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -1825,6 +1825,61 @@ static const struct file_operations fops
+@@ -1836,6 +1836,61 @@ static const struct file_operations fops
.llseek = default_llseek,
};
int ath9k_init_debug(struct ath_hw *ah)
{
-@@ -1847,6 +1902,10 @@ int ath9k_init_debug(struct ath_hw *ah)
+@@ -1858,6 +1913,10 @@ int ath9k_init_debug(struct ath_hw *ah)
&fops_eeprom);
debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
sc, &fops_chanbw);
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -1881,6 +1881,50 @@ static const struct file_operations fops
+@@ -1892,6 +1892,50 @@ static const struct file_operations fops
#endif
int ath9k_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
-@@ -1906,6 +1950,8 @@ int ath9k_init_debug(struct ath_hw *ah)
+@@ -1917,6 +1961,8 @@ int ath9k_init_debug(struct ath_hw *ah)
debugfs_create_file("gpio_led", S_IWUSR,
sc->debug.debugfs_phy, sc, &fops_gpio_led);
#endif
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -168,6 +168,16 @@ static void ath_txq_skb_done(struct ath_
- }
- }
-
-+static bool ath_tid_has_buffered(struct ath_atx_tid *tid)
-+{
-+ return !skb_queue_empty(&tid->buf_q);
-+}
-+
-+static struct sk_buff *ath_tid_dequeue(struct ath_atx_tid *tid)
-+{
-+ return __skb_dequeue(&tid->buf_q);
-+}
-+
- static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
- {
- struct ath_txq *txq = tid->ac->txq;
-@@ -182,7 +192,7 @@ static void ath_tx_flush_tid(struct ath_
-
- memset(&ts, 0, sizeof(ts));
-
-- while ((skb = __skb_dequeue(&tid->buf_q))) {
-+ while ((skb = ath_tid_dequeue(tid))) {
- fi = get_frame_info(skb);
- bf = fi->bf;
-
-@@ -266,7 +276,7 @@ static void ath_tid_drain(struct ath_sof
- memset(&ts, 0, sizeof(ts));
- INIT_LIST_HEAD(&bf_head);
-
-- while ((skb = __skb_dequeue(&tid->buf_q))) {
-+ while ((skb = ath_tid_dequeue(tid))) {
- fi = get_frame_info(skb);
- bf = fi->bf;
-
-@@ -815,7 +825,7 @@ static int ath_compute_num_delims(struct
-
- static struct ath_buf *
- ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
-- struct ath_atx_tid *tid)
-+ struct ath_atx_tid *tid, struct sk_buff_head **q)
- {
- struct ath_frame_info *fi;
- struct sk_buff *skb;
-@@ -823,7 +833,8 @@ ath_tx_get_tid_subframe(struct ath_softc
- u16 seqno;
-
- while (1) {
-- skb = skb_peek(&tid->buf_q);
-+ *q = &tid->buf_q;
-+ skb = skb_peek(*q);
- if (!skb)
- break;
-
-@@ -833,7 +844,7 @@ ath_tx_get_tid_subframe(struct ath_softc
- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
-
- if (!bf) {
-- __skb_unlink(skb, &tid->buf_q);
-+ __skb_unlink(skb, *q);
- ath_txq_skb_done(sc, txq, skb);
- ieee80211_free_txskb(sc->hw, skb);
- continue;
-@@ -852,7 +863,7 @@ ath_tx_get_tid_subframe(struct ath_softc
-
- INIT_LIST_HEAD(&bf_head);
- list_add(&bf->list, &bf_head);
-- __skb_unlink(skb, &tid->buf_q);
-+ __skb_unlink(skb, *q);
- ath_tx_update_baw(sc, tid, seqno);
- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
- continue;
-@@ -881,9 +892,10 @@ static enum ATH_AGGR_STATUS ath_tx_form_
- struct ieee80211_tx_info *tx_info;
- struct ath_frame_info *fi;
- struct sk_buff *skb;
-+ struct sk_buff_head *tid_q;
-
- do {
-- bf = ath_tx_get_tid_subframe(sc, txq, tid);
-+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
- if (!bf) {
- status = ATH_AGGR_BAW_CLOSED;
- break;
-@@ -940,14 +952,14 @@ static enum ATH_AGGR_STATUS ath_tx_form_
- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
- bf->bf_state.ndelim = ndelim;
-
-- __skb_unlink(skb, &tid->buf_q);
-+ __skb_unlink(skb, tid_q);
- list_add_tail(&bf->list, bf_q);
- if (bf_prev)
- bf_prev->bf_next = bf;
-
- bf_prev = bf;
-
-- } while (!skb_queue_empty(&tid->buf_q));
-+ } while (ath_tid_has_buffered(tid));
-
- *aggr_len = al;
-
-@@ -1222,7 +1234,7 @@ static void ath_tx_sched_aggr(struct ath
- int aggr_len;
-
- do {
-- if (skb_queue_empty(&tid->buf_q))
-+ if (!ath_tid_has_buffered(tid))
- return;
-
- INIT_LIST_HEAD(&bf_q);
-@@ -1326,7 +1338,7 @@ void ath_tx_aggr_sleep(struct ieee80211_
-
- ath_txq_lock(sc, txq);
-
-- buffered = !skb_queue_empty(&tid->buf_q);
-+ buffered = ath_tid_has_buffered(tid);
-
- tid->sched = false;
- list_del(&tid->list);
-@@ -1358,7 +1370,7 @@ void ath_tx_aggr_wakeup(struct ath_softc
- ath_txq_lock(sc, txq);
- ac->clear_ps_filter = true;
-
-- if (!skb_queue_empty(&tid->buf_q) && !tid->paused) {
-+ if (!tid->paused && ath_tid_has_buffered(tid)) {
- ath_tx_queue_tid(txq, tid);
- ath_txq_schedule(sc, txq);
- }
-@@ -1383,7 +1395,7 @@ void ath_tx_aggr_resume(struct ath_softc
- tid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor;
- tid->paused = false;
-
-- if (!skb_queue_empty(&tid->buf_q)) {
-+ if (ath_tid_has_buffered(tid)) {
- ath_tx_queue_tid(txq, tid);
- ath_txq_schedule(sc, txq);
- }
-@@ -1403,6 +1415,7 @@ void ath9k_release_buffered_frames(struc
- struct ieee80211_tx_info *info;
- struct list_head bf_q;
- struct ath_buf *bf_tail = NULL, *bf;
-+ struct sk_buff_head *tid_q;
- int sent = 0;
- int i;
-
-@@ -1418,12 +1431,12 @@ void ath9k_release_buffered_frames(struc
- continue;
-
- ath_txq_lock(sc, tid->ac->txq);
-- while (!skb_queue_empty(&tid->buf_q) && nframes > 0) {
-- bf = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq, tid);
-+ while (nframes > 0) {
-+ bf = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq, tid, &tid_q);
- if (!bf)
- break;
-
-- __skb_unlink(bf->bf_mpdu, &tid->buf_q);
-+ __skb_unlink(bf->bf_mpdu, tid_q);
- list_add_tail(&bf->list, &bf_q);
- ath_set_rates(tid->an->vif, tid->an->sta, bf);
- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
-@@ -1436,7 +1449,7 @@ void ath9k_release_buffered_frames(struc
- sent++;
- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
-
-- if (skb_queue_empty(&tid->buf_q))
-+ if (!ath_tid_has_buffered(tid))
- ieee80211_sta_set_buffered(an->sta, i, false);
- }
- ath_txq_unlock_complete(sc, tid->ac->txq);
-@@ -1722,7 +1735,7 @@ void ath_txq_schedule(struct ath_softc *
- * add tid to round-robin queue if more frames
- * are pending for the tid
- */
-- if (!skb_queue_empty(&tid->buf_q))
-+ if (ath_tid_has_buffered(tid))
- ath_tx_queue_tid(txq, tid);
-
- if (tid == last_tid ||
-@@ -1831,7 +1844,7 @@ static void ath_tx_send_ampdu(struct ath
- * - seqno is not within block-ack window
- * - h/w queue depth exceeds low water mark
- */
-- if ((!skb_queue_empty(&tid->buf_q) || tid->paused ||
-+ if ((ath_tid_has_buffered(tid) || tid->paused ||
- !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) ||
- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) &&
- txq != sc->tx.uapsdq) {
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -241,6 +241,7 @@ struct ath_buf {
- struct ath_atx_tid {
- struct list_head list;
- struct sk_buff_head buf_q;
-+ struct sk_buff_head retry_q;
- struct ath_node *an;
- struct ath_atx_ac *ac;
- unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -170,12 +170,18 @@ static void ath_txq_skb_done(struct ath_
-
- static bool ath_tid_has_buffered(struct ath_atx_tid *tid)
- {
-- return !skb_queue_empty(&tid->buf_q);
-+ return !skb_queue_empty(&tid->buf_q) || !skb_queue_empty(&tid->retry_q);
- }
-
- static struct sk_buff *ath_tid_dequeue(struct ath_atx_tid *tid)
- {
-- return __skb_dequeue(&tid->buf_q);
-+ struct sk_buff *skb;
-+
-+ skb = __skb_dequeue(&tid->retry_q);
-+ if (!skb)
-+ skb = __skb_dequeue(&tid->buf_q);
-+
-+ return skb;
- }
-
- static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
-@@ -593,7 +599,7 @@ static void ath_tx_complete_aggr(struct
- if (an->sleeping)
- ieee80211_sta_set_buffered(sta, tid->tidno, true);
-
-- skb_queue_splice(&bf_pending, &tid->buf_q);
-+ skb_queue_splice_tail(&bf_pending, &tid->retry_q);
- if (!an->sleeping) {
- ath_tx_queue_tid(txq, tid);
-
-@@ -833,7 +839,10 @@ ath_tx_get_tid_subframe(struct ath_softc
- u16 seqno;
-
- while (1) {
-- *q = &tid->buf_q;
-+ *q = &tid->retry_q;
-+ if (skb_queue_empty(*q))
-+ *q = &tid->buf_q;
-+
- skb = skb_peek(*q);
- if (!skb)
- break;
-@@ -2608,6 +2617,7 @@ void ath_tx_node_init(struct ath_softc *
- tid->paused = false;
- tid->active = false;
- __skb_queue_head_init(&tid->buf_q);
-+ __skb_queue_head_init(&tid->retry_q);
- acno = TID_TO_WME_AC(tidno);
- tid->ac = &an->ac[acno];
- }
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -168,6 +168,20 @@ static void ath_txq_skb_done(struct ath_
- }
- }
-
-+static struct ath_atx_tid *
-+ath_get_skb_tid(struct ath_softc *sc, struct ath_node *an, struct sk_buff *skb)
-+{
-+ struct ieee80211_hdr *hdr;
-+ u8 tidno = 0;
-+
-+ hdr = (struct ieee80211_hdr *) skb->data;
-+ if (ieee80211_is_data_qos(hdr->frame_control))
-+ tidno = ieee80211_get_qos_ctl(hdr)[0];
-+
-+ tidno &= IEEE80211_QOS_CTL_TID_MASK;
-+ return ATH_AN_2_TID(an, tidno);
-+}
-+
- static bool ath_tid_has_buffered(struct ath_atx_tid *tid)
- {
- return !skb_queue_empty(&tid->buf_q) || !skb_queue_empty(&tid->retry_q);
-@@ -419,7 +433,6 @@ static void ath_tx_complete_aggr(struct
- struct ieee80211_tx_rate rates[4];
- struct ath_frame_info *fi;
- int nframes;
-- u8 tidno;
- bool flush = !!(ts->ts_status & ATH9K_TX_FLUSH);
- int i, retries;
- int bar_index = -1;
-@@ -456,8 +469,7 @@ static void ath_tx_complete_aggr(struct
- }
-
- an = (struct ath_node *)sta->drv_priv;
-- tidno = ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
-- tid = ATH_AN_2_TID(an, tidno);
-+ tid = ath_get_skb_tid(sc, an, skb);
- seq_first = tid->seq_start;
- isba = ts->ts_flags & ATH9K_TX_BA;
-
-@@ -469,7 +481,7 @@ static void ath_tx_complete_aggr(struct
- * Only BlockAcks have a TID and therefore normal Acks cannot be
- * checked
- */
-- if (isba && tidno != ts->tid)
-+ if (isba && tid->tidno != ts->tid)
- txok = false;
-
- isaggr = bf_isaggr(bf);
-@@ -2088,7 +2100,6 @@ int ath_tx_start(struct ieee80211_hw *hw
- struct ath_txq *txq = txctl->txq;
- struct ath_atx_tid *tid = NULL;
- struct ath_buf *bf;
-- u8 tidno;
- int q;
- int ret;
-
-@@ -2119,9 +2130,7 @@ int ath_tx_start(struct ieee80211_hw *hw
- }
-
- if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
-- tidno = ieee80211_get_qos_ctl(hdr)[0] &
-- IEEE80211_QOS_CTL_TID_MASK;
-- tid = ATH_AN_2_TID(txctl->an, tidno);
-+ tid = ath_get_skb_tid(sc, txctl->an, skb);
-
- WARN_ON(tid->ac->txq != txctl->txq);
- }
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/debug.c
-+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -607,6 +607,28 @@ static ssize_t read_file_xmit(struct fil
- return retval;
- }
-
-+static ssize_t print_queue(struct ath_softc *sc, struct ath_txq *txq,
-+ char *buf, ssize_t size)
-+{
-+ ssize_t len = 0;
-+
-+ ath_txq_lock(sc, txq);
-+
-+ len += snprintf(buf + len, size - len, "%s: %d ",
-+ "qnum", txq->axq_qnum);
-+ len += snprintf(buf + len, size - len, "%s: %2d ",
-+ "qdepth", txq->axq_depth);
-+ len += snprintf(buf + len, size - len, "%s: %2d ",
-+ "ampdu-depth", txq->axq_ampdu_depth);
-+ len += snprintf(buf + len, size - len, "%s: %3d ",
-+ "pending", txq->pending_frames);
-+ len += snprintf(buf + len, size - len, "%s: %d\n",
-+ "stopped", txq->stopped);
-+
-+ ath_txq_unlock(sc, txq);
-+ return len;
-+}
-+
- static ssize_t read_file_queues(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
- {
-@@ -624,24 +646,13 @@ static ssize_t read_file_queues(struct f
-
- for (i = 0; i < IEEE80211_NUM_ACS; i++) {
- txq = sc->tx.txq_map[i];
-- len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
--
-- ath_txq_lock(sc, txq);
--
-- len += snprintf(buf + len, size - len, "%s: %d ",
-- "qnum", txq->axq_qnum);
-- len += snprintf(buf + len, size - len, "%s: %2d ",
-- "qdepth", txq->axq_depth);
-- len += snprintf(buf + len, size - len, "%s: %2d ",
-- "ampdu-depth", txq->axq_ampdu_depth);
-- len += snprintf(buf + len, size - len, "%s: %3d ",
-- "pending", txq->pending_frames);
-- len += snprintf(buf + len, size - len, "%s: %d\n",
-- "stopped", txq->stopped);
--
-- ath_txq_unlock(sc, txq);
-+ len += snprintf(buf + len, size - len, "(%s): ", qname[i]);
-+ len += print_queue(sc, txq, buf + len, size - len);
- }
-
-+ len += snprintf(buf + len, size - len, "(CAB): ");
-+ len += print_queue(sc, sc->beacon.cabq, buf + len, size - len);
-+
- if (len > size)
- len = size;
-
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -906,9 +906,9 @@ static enum ATH_AGGR_STATUS ath_tx_form_
- {
- #define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
- struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL;
-- int rl = 0, nframes = 0, ndelim, prev_al = 0;
-+ int nframes = 0, ndelim;
- u16 aggr_limit = 0, al = 0, bpad = 0,
-- al_delta, h_baw = tid->baw_size / 2;
-+ al_delta, h_baw = tid->baw_size / 2;
- enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
- struct ieee80211_tx_info *tx_info;
- struct ath_frame_info *fi;
-@@ -925,33 +925,24 @@ static enum ATH_AGGR_STATUS ath_tx_form_
- skb = bf->bf_mpdu;
- fi = get_frame_info(skb);
-
-- if (!bf_first)
-+ if (!bf_first) {
- bf_first = bf;
--
-- if (!rl) {
- ath_set_rates(tid->an->vif, tid->an->sta, bf);
- aggr_limit = ath_lookup_rate(sc, bf, tid);
-- rl = 1;
- }
-
- /* do not exceed aggregation limit */
- al_delta = ATH_AGGR_DELIM_SZ + fi->framelen;
-+ if (nframes) {
-+ if (aggr_limit < al + bpad + al_delta ||
-+ ath_lookup_legacy(bf) || nframes >= h_baw) {
-+ status = ATH_AGGR_LIMITED;
-+ break;
-+ }
-
-- if (nframes &&
-- ((aggr_limit < (al + bpad + al_delta + prev_al)) ||
-- ath_lookup_legacy(bf))) {
-- status = ATH_AGGR_LIMITED;
-- break;
-- }
--
-- tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-- if (nframes && (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
-- break;
--
-- /* do not exceed subframe limit */
-- if (nframes >= min((int)h_baw, ATH_AMPDU_SUBFRAME_DEFAULT)) {
-- status = ATH_AGGR_LIMITED;
-- break;
-+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-+ if (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
-+ break;
- }
-
- /* add padding for previous frame to aggregation length */
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -137,7 +137,6 @@ int ath_descdma_setup(struct ath_softc *
- #define ATH_AGGR_ENCRYPTDELIM 10
- /* minimum h/w qdepth to be sustained to maximize aggregation */
- #define ATH_AGGR_MIN_QDEPTH 2
--#define ATH_AMPDU_SUBFRAME_DEFAULT 32
-
- #define IEEE80211_SEQ_SEQ_SHIFT 4
- #define IEEE80211_SEQ_MAX 4096
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -211,8 +211,9 @@ struct ath_frame_info {
- int framelen;
- enum ath9k_key_type keytype;
- u8 keyix;
-- u8 retries;
- u8 rtscts_rate;
-+ u8 retries : 7;
-+ u8 baw_tracked : 1;
- };
-
- struct ath_buf_state {
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -225,7 +225,7 @@ static void ath_tx_flush_tid(struct ath_
- }
- }
-
-- if (fi->retries) {
-+ if (fi->baw_tracked) {
- list_add_tail(&bf->list, &bf_head);
- ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
-@@ -262,13 +262,16 @@ static void ath_tx_update_baw(struct ath
- }
-
- static void ath_tx_addto_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
-- u16 seqno)
-+ struct ath_buf *bf)
- {
-+ struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu);
-+ u16 seqno = bf->bf_state.seqno;
- int index, cindex;
-
- index = ATH_BA_INDEX(tid->seq_start, seqno);
- cindex = (tid->baw_head + index) & (ATH_TID_MAX_BUFS - 1);
- __set_bit(cindex, tid->tx_buf);
-+ fi->baw_tracked = 1;
-
- if (index >= ((tid->baw_tail - tid->baw_head) &
- (ATH_TID_MAX_BUFS - 1))) {
-@@ -960,8 +963,8 @@ static enum ATH_AGGR_STATUS ath_tx_form_
- bf->bf_next = NULL;
-
- /* link buffers of this frame to the aggregate */
-- if (!fi->retries)
-- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
-+ if (!fi->baw_tracked)
-+ ath_tx_addto_baw(sc, tid, bf);
- bf->bf_state.ndelim = ndelim;
-
- __skb_unlink(skb, tid_q);
-@@ -1451,7 +1454,7 @@ void ath9k_release_buffered_frames(struc
- __skb_unlink(bf->bf_mpdu, tid_q);
- list_add_tail(&bf->list, &bf_q);
- ath_set_rates(tid->an->vif, tid->an->sta, bf);
-- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
-+ ath_tx_addto_baw(sc, tid, bf);
- bf->bf_state.bf_type &= ~BUF_AGGR;
- if (bf_tail)
- bf_tail->bf_next = bf;
-@@ -1884,7 +1887,7 @@ static void ath_tx_send_ampdu(struct ath
- list_add(&bf->list, &bf_head);
-
- /* Add sub-frame to BAW */
-- ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
-+ ath_tx_addto_baw(sc, tid, bf);
-
- /* Queue to h/w without aggregation */
- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -672,7 +672,7 @@ static void ath_tx_process_buffer(struct
- } else
- ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
-
-- if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT) && !flush)
-+ if (!flush)
- ath_txq_schedule(sc, txq);
- }
-
-@@ -848,6 +848,7 @@ static struct ath_buf *
- ath_tx_get_tid_subframe(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_atx_tid *tid, struct sk_buff_head **q)
- {
-+ struct ieee80211_tx_info *tx_info;
- struct ath_frame_info *fi;
- struct sk_buff *skb;
- struct ath_buf *bf;
-@@ -874,6 +875,16 @@ ath_tx_get_tid_subframe(struct ath_softc
- continue;
- }
-
-+ bf->bf_next = NULL;
-+ bf->bf_lastbf = bf;
-+
-+ tx_info = IEEE80211_SKB_CB(skb);
-+ tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
-+ if (!(tx_info->flags & IEEE80211_TX_CTL_AMPDU)) {
-+ bf->bf_state.bf_type = 0;
-+ return bf;
-+ }
-+
- bf->bf_state.bf_type = BUF_AMPDU | BUF_AGGR;
- seqno = bf->bf_state.seqno;
-
-@@ -893,8 +904,6 @@ ath_tx_get_tid_subframe(struct ath_softc
- continue;
- }
-
-- bf->bf_next = NULL;
-- bf->bf_lastbf = bf;
- return bf;
- }
-
-@@ -1328,7 +1337,7 @@ void ath_tx_aggr_stop(struct ath_softc *
-
- ath_txq_lock(sc, txq);
- txtid->active = false;
-- txtid->paused = true;
-+ txtid->paused = false;
- ath_tx_flush_tid(sc, txtid);
- ath_txq_unlock_complete(sc, txq);
- }
-@@ -2397,8 +2406,7 @@ static void ath_tx_processq(struct ath_s
-
- if (list_empty(&txq->axq_q)) {
- txq->axq_link = NULL;
-- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
-- ath_txq_schedule(sc, txq);
-+ ath_txq_schedule(sc, txq);
- break;
- }
- bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -1403,9 +1403,6 @@ static void ath9k_sta_notify(struct ieee
- struct ath_softc *sc = hw->priv;
- struct ath_node *an = (struct ath_node *) sta->drv_priv;
-
-- if (!sta->ht_cap.ht_supported)
-- return;
--
- switch (cmd) {
- case STA_NOTIFY_SLEEP:
- an->sleeping = true;
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -520,7 +520,8 @@ static void ath_tx_complete_aggr(struct
- tx_info = IEEE80211_SKB_CB(skb);
- fi = get_frame_info(skb);
-
-- if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) {
-+ if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno) ||
-+ !tid->active) {
- /*
- * Outside of the current BlockAck window,
- * maybe part of a previous session
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -2637,6 +2637,7 @@ void ath_tx_node_init(struct ath_softc *
- for (acno = 0, ac = &an->ac[acno];
- acno < IEEE80211_NUM_ACS; acno++, ac++) {
- ac->sched = false;
-+ ac->clear_ps_filter = true;
- ac->txq = sc->tx.txq_map[acno];
- INIT_LIST_HEAD(&ac->tid_q);
- }
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -198,6 +198,41 @@ static struct sk_buff *ath_tid_dequeue(s
- return skb;
- }
-
-+/*
-+ * ath_tx_tid_change_state:
-+ * - clears a-mpdu flag of previous session
-+ * - force sequence number allocation to fix next BlockAck Window
-+ */
-+static void
-+ath_tx_tid_change_state(struct ath_softc *sc, struct ath_atx_tid *tid)
-+{
-+ struct ath_txq *txq = tid->ac->txq;
-+ struct ieee80211_tx_info *tx_info;
-+ struct sk_buff *skb, *tskb;
-+ struct ath_buf *bf;
-+ struct ath_frame_info *fi;
-+
-+ skb_queue_walk_safe(&tid->buf_q, skb, tskb) {
-+ fi = get_frame_info(skb);
-+ bf = fi->bf;
-+
-+ tx_info = IEEE80211_SKB_CB(skb);
-+ tx_info->flags &= ~IEEE80211_TX_CTL_AMPDU;
-+
-+ if (bf)
-+ continue;
-+
-+ bf = ath_tx_setup_buffer(sc, txq, tid, skb);
-+ if (!bf) {
-+ __skb_unlink(skb, &tid->buf_q);
-+ ath_txq_skb_done(sc, txq, skb);
-+ ieee80211_free_txskb(sc->hw, skb);
-+ continue;
-+ }
-+ }
-+
-+}
-+
- static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
- {
- struct ath_txq *txq = tid->ac->txq;
-@@ -212,28 +247,22 @@ static void ath_tx_flush_tid(struct ath_
-
- memset(&ts, 0, sizeof(ts));
-
-- while ((skb = ath_tid_dequeue(tid))) {
-+ while ((skb = __skb_dequeue(&tid->retry_q))) {
- fi = get_frame_info(skb);
- bf = fi->bf;
--
- if (!bf) {
-- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
-- if (!bf) {
-- ath_txq_skb_done(sc, txq, skb);
-- ieee80211_free_txskb(sc->hw, skb);
-- continue;
-- }
-+ ath_txq_skb_done(sc, txq, skb);
-+ ieee80211_free_txskb(sc->hw, skb);
-+ continue;
- }
-
- if (fi->baw_tracked) {
-- list_add_tail(&bf->list, &bf_head);
- ath_tx_update_baw(sc, tid, bf->bf_state.seqno);
-- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
- sendbar = true;
-- } else {
-- ath_set_rates(tid->an->vif, tid->an->sta, bf);
-- ath_tx_send_normal(sc, txq, NULL, skb);
- }
-+
-+ list_add_tail(&bf->list, &bf_head);
-+ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
- }
-
- if (sendbar) {
-@@ -911,50 +940,39 @@ ath_tx_get_tid_subframe(struct ath_softc
- return NULL;
- }
-
--static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
-- struct ath_txq *txq,
-- struct ath_atx_tid *tid,
-- struct list_head *bf_q,
-- int *aggr_len)
-+static bool
-+ath_tx_form_aggr(struct ath_softc *sc, struct ath_txq *txq,
-+ struct ath_atx_tid *tid, struct list_head *bf_q,
-+ struct ath_buf *bf_first, struct sk_buff_head *tid_q,
-+ int *aggr_len)
- {
- #define PADBYTES(_len) ((4 - ((_len) % 4)) % 4)
-- struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL;
-+ struct ath_buf *bf = bf_first, *bf_prev = NULL;
- int nframes = 0, ndelim;
- u16 aggr_limit = 0, al = 0, bpad = 0,
- al_delta, h_baw = tid->baw_size / 2;
-- enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
- struct ieee80211_tx_info *tx_info;
- struct ath_frame_info *fi;
- struct sk_buff *skb;
-- struct sk_buff_head *tid_q;
-+ bool closed = false;
-
-- do {
-- bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
-- if (!bf) {
-- status = ATH_AGGR_BAW_CLOSED;
-- break;
-- }
-+ bf = bf_first;
-+ aggr_limit = ath_lookup_rate(sc, bf, tid);
-
-+ do {
- skb = bf->bf_mpdu;
- fi = get_frame_info(skb);
-
-- if (!bf_first) {
-- bf_first = bf;
-- ath_set_rates(tid->an->vif, tid->an->sta, bf);
-- aggr_limit = ath_lookup_rate(sc, bf, tid);
-- }
--
- /* do not exceed aggregation limit */
- al_delta = ATH_AGGR_DELIM_SZ + fi->framelen;
- if (nframes) {
- if (aggr_limit < al + bpad + al_delta ||
-- ath_lookup_legacy(bf) || nframes >= h_baw) {
-- status = ATH_AGGR_LIMITED;
-+ ath_lookup_legacy(bf) || nframes >= h_baw)
- break;
-- }
-
- tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-- if (tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)
-+ if ((tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) ||
-+ !(tx_info->flags & IEEE80211_TX_CTL_AMPDU))
- break;
- }
-
-@@ -984,11 +1002,26 @@ static enum ATH_AGGR_STATUS ath_tx_form_
-
- bf_prev = bf;
-
-+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
-+ if (!bf) {
-+ closed = true;
-+ break;
-+ }
- } while (ath_tid_has_buffered(tid));
-
-+ bf = bf_first;
-+ bf->bf_lastbf = bf_prev;
-+
-+ if (bf == bf_prev) {
-+ al = get_frame_info(bf->bf_mpdu)->framelen;
-+ bf->bf_state.bf_type = BUF_AMPDU;
-+ } else {
-+ TX_STAT_INC(txq->axq_qnum, a_aggr);
-+ }
-+
- *aggr_len = al;
-
-- return status;
-+ return closed;
- #undef PADBYTES
- }
-
-@@ -1249,14 +1282,50 @@ static void ath_tx_fill_desc(struct ath_
- }
- }
-
-+static void
-+ath_tx_form_burst(struct ath_softc *sc, struct ath_txq *txq,
-+ struct ath_atx_tid *tid, struct list_head *bf_q,
-+ struct ath_buf *bf_first, struct sk_buff_head *tid_q)
-+{
-+ struct ath_buf *bf = bf_first, *bf_prev = NULL;
-+ struct sk_buff *skb;
-+ int nframes = 0;
-+
-+ do {
-+ struct ieee80211_tx_info *tx_info;
-+ skb = bf->bf_mpdu;
-+
-+ nframes++;
-+ __skb_unlink(skb, tid_q);
-+ list_add_tail(&bf->list, bf_q);
-+ if (bf_prev)
-+ bf_prev->bf_next = bf;
-+ bf_prev = bf;
-+
-+ if (nframes >= 2)
-+ break;
-+
-+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
-+ if (!bf)
-+ break;
-+
-+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-+ if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
-+ break;
-+
-+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
-+ } while (1);
-+}
-+
- static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_atx_tid *tid)
- {
- struct ath_buf *bf;
-- enum ATH_AGGR_STATUS status;
- struct ieee80211_tx_info *tx_info;
-+ struct sk_buff_head *tid_q;
- struct list_head bf_q;
-- int aggr_len;
-+ int aggr_len = 0;
-+ bool aggr, last = true;
-
- do {
- if (!ath_tid_has_buffered(tid))
-@@ -1264,38 +1333,34 @@ static void ath_tx_sched_aggr(struct ath
-
- INIT_LIST_HEAD(&bf_q);
-
-- status = ath_tx_form_aggr(sc, txq, tid, &bf_q, &aggr_len);
--
-- /*
-- * no frames picked up to be aggregated;
-- * block-ack window is not open.
-- */
-- if (list_empty(&bf_q))
-+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
-+ if (!bf)
- break;
-
-- bf = list_first_entry(&bf_q, struct ath_buf, list);
-- bf->bf_lastbf = list_entry(bf_q.prev, struct ath_buf, list);
- tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-+ aggr = !!(tx_info->flags & IEEE80211_TX_CTL_AMPDU);
-+ if ((aggr && txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) ||
-+ (!aggr && txq->axq_depth >= ATH_NON_AGGR_MIN_QDEPTH))
-+ break;
-+
-+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
-+ if (aggr)
-+ last = ath_tx_form_aggr(sc, txq, tid, &bf_q, bf,
-+ tid_q, &aggr_len);
-+ else
-+ ath_tx_form_burst(sc, txq, tid, &bf_q, bf, tid_q);
-+
-+ if (list_empty(&bf_q))
-+ return;
-
- if (tid->ac->clear_ps_filter) {
- tid->ac->clear_ps_filter = false;
- tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
-- } else {
-- tx_info->flags &= ~IEEE80211_TX_CTL_CLEAR_PS_FILT;
-- }
--
-- /* if only one frame, send as non-aggregate */
-- if (bf == bf->bf_lastbf) {
-- aggr_len = get_frame_info(bf->bf_mpdu)->framelen;
-- bf->bf_state.bf_type = BUF_AMPDU;
-- } else {
-- TX_STAT_INC(txq->axq_qnum, a_aggr);
- }
-
- ath_tx_fill_desc(sc, bf, txq, aggr_len);
- ath_tx_txqaddbuf(sc, txq, &bf_q, false);
-- } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
-- status != ATH_AGGR_BAW_CLOSED);
-+ } while (!last);
- }
-
- int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
-@@ -1319,6 +1384,9 @@ int ath_tx_aggr_start(struct ath_softc *
- an->mpdudensity = density;
- }
-
-+ /* force sequence number allocation for pending frames */
-+ ath_tx_tid_change_state(sc, txtid);
-+
- txtid->active = true;
- txtid->paused = true;
- *ssn = txtid->seq_start = txtid->seq_next;
-@@ -1340,6 +1408,7 @@ void ath_tx_aggr_stop(struct ath_softc *
- txtid->active = false;
- txtid->paused = false;
- ath_tx_flush_tid(sc, txtid);
-+ ath_tx_tid_change_state(sc, txtid);
- ath_txq_unlock_complete(sc, txq);
- }
-
-@@ -1854,58 +1923,6 @@ static void ath_tx_txqaddbuf(struct ath_
- }
- }
-
--static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_txq *txq,
-- struct ath_atx_tid *tid, struct sk_buff *skb,
-- struct ath_tx_control *txctl)
--{
-- struct ath_frame_info *fi = get_frame_info(skb);
-- struct list_head bf_head;
-- struct ath_buf *bf;
--
-- /*
-- * Do not queue to h/w when any of the following conditions is true:
-- * - there are pending frames in software queue
-- * - the TID is currently paused for ADDBA/BAR request
-- * - seqno is not within block-ack window
-- * - h/w queue depth exceeds low water mark
-- */
-- if ((ath_tid_has_buffered(tid) || tid->paused ||
-- !BAW_WITHIN(tid->seq_start, tid->baw_size, tid->seq_next) ||
-- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) &&
-- txq != sc->tx.uapsdq) {
-- /*
-- * Add this frame to software queue for scheduling later
-- * for aggregation.
-- */
-- TX_STAT_INC(txq->axq_qnum, a_queued_sw);
-- __skb_queue_tail(&tid->buf_q, skb);
-- if (!txctl->an || !txctl->an->sleeping)
-- ath_tx_queue_tid(txq, tid);
-- return;
-- }
--
-- bf = ath_tx_setup_buffer(sc, txq, tid, skb);
-- if (!bf) {
-- ath_txq_skb_done(sc, txq, skb);
-- ieee80211_free_txskb(sc->hw, skb);
-- return;
-- }
--
-- ath_set_rates(tid->an->vif, tid->an->sta, bf);
-- bf->bf_state.bf_type = BUF_AMPDU;
-- INIT_LIST_HEAD(&bf_head);
-- list_add(&bf->list, &bf_head);
--
-- /* Add sub-frame to BAW */
-- ath_tx_addto_baw(sc, tid, bf);
--
-- /* Queue to h/w without aggregation */
-- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
-- bf->bf_lastbf = bf;
-- ath_tx_fill_desc(sc, bf, txq, fi->framelen);
-- ath_tx_txqaddbuf(sc, txq, &bf_head, false);
--}
--
- static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_atx_tid *tid, struct sk_buff *skb)
- {
-@@ -2131,20 +2148,25 @@ int ath_tx_start(struct ieee80211_hw *hw
- ath_txq_unlock(sc, txq);
- txq = sc->tx.uapsdq;
- ath_txq_lock(sc, txq);
-- }
--
-- if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
-+ } else if (txctl->an &&
-+ ieee80211_is_data_present(hdr->frame_control)) {
- tid = ath_get_skb_tid(sc, txctl->an, skb);
-
- WARN_ON(tid->ac->txq != txctl->txq);
-- }
-
-- if ((info->flags & IEEE80211_TX_CTL_AMPDU) && tid) {
-+ if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
-+ tid->ac->clear_ps_filter = true;
-+
- /*
-- * Try aggregation if it's a unicast data frame
-- * and the destination is HT capable.
-+ * Add this frame to software queue for scheduling later
-+ * for aggregation.
- */
-- ath_tx_send_ampdu(sc, txq, tid, skb, txctl);
-+ TX_STAT_INC(txq->axq_qnum, a_queued_sw);
-+ __skb_queue_tail(&tid->buf_q, skb);
-+ if (!txctl->an->sleeping)
-+ ath_tx_queue_tid(txq, tid);
-+
-+ ath_txq_schedule(sc, txq);
- goto out;
- }
-
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -137,6 +137,8 @@ int ath_descdma_setup(struct ath_softc *
- #define ATH_AGGR_ENCRYPTDELIM 10
- /* minimum h/w qdepth to be sustained to maximize aggregation */
- #define ATH_AGGR_MIN_QDEPTH 2
-+/* minimum h/w qdepth for non-aggregated traffic */
-+#define ATH_NON_AGGR_MIN_QDEPTH 8
-
- #define IEEE80211_SEQ_SEQ_SHIFT 4
- #define IEEE80211_SEQ_MAX 4096
-@@ -173,12 +175,6 @@ int ath_descdma_setup(struct ath_softc *
-
- #define ATH_TX_COMPLETE_POLL_INT 1000
-
--enum ATH_AGGR_STATUS {
-- ATH_AGGR_DONE,
-- ATH_AGGR_BAW_CLOSED,
-- ATH_AGGR_LIMITED,
--};
--
- #define ATH_TXFIFO_DEPTH 8
- struct ath_txq {
- int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -1317,8 +1317,8 @@ ath_tx_form_burst(struct ath_softc *sc,
- } while (1);
- }
-
--static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
-- struct ath_atx_tid *tid)
-+static bool ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
-+ struct ath_atx_tid *tid, bool *stop)
- {
- struct ath_buf *bf;
- struct ieee80211_tx_info *tx_info;
-@@ -1327,40 +1327,41 @@ static void ath_tx_sched_aggr(struct ath
- int aggr_len = 0;
- bool aggr, last = true;
-
-- do {
-- if (!ath_tid_has_buffered(tid))
-- return;
--
-- INIT_LIST_HEAD(&bf_q);
--
-- bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
-- if (!bf)
-- break;
-+ if (!ath_tid_has_buffered(tid))
-+ return false;
-
-- tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-- aggr = !!(tx_info->flags & IEEE80211_TX_CTL_AMPDU);
-- if ((aggr && txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) ||
-- (!aggr && txq->axq_depth >= ATH_NON_AGGR_MIN_QDEPTH))
-- break;
-+ INIT_LIST_HEAD(&bf_q);
-
-- ath_set_rates(tid->an->vif, tid->an->sta, bf);
-- if (aggr)
-- last = ath_tx_form_aggr(sc, txq, tid, &bf_q, bf,
-- tid_q, &aggr_len);
-- else
-- ath_tx_form_burst(sc, txq, tid, &bf_q, bf, tid_q);
-+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
-+ if (!bf)
-+ return false;
-+
-+ tx_info = IEEE80211_SKB_CB(bf->bf_mpdu);
-+ aggr = !!(tx_info->flags & IEEE80211_TX_CTL_AMPDU);
-+ if ((aggr && txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) ||
-+ (!aggr && txq->axq_depth >= ATH_NON_AGGR_MIN_QDEPTH)) {
-+ *stop = true;
-+ return false;
-+ }
-+
-+ ath_set_rates(tid->an->vif, tid->an->sta, bf);
-+ if (aggr)
-+ last = ath_tx_form_aggr(sc, txq, tid, &bf_q, bf,
-+ tid_q, &aggr_len);
-+ else
-+ ath_tx_form_burst(sc, txq, tid, &bf_q, bf, tid_q);
-
-- if (list_empty(&bf_q))
-- return;
-+ if (list_empty(&bf_q))
-+ return false;
-
-- if (tid->ac->clear_ps_filter) {
-- tid->ac->clear_ps_filter = false;
-- tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
-- }
-+ if (tid->ac->clear_ps_filter) {
-+ tid->ac->clear_ps_filter = false;
-+ tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
-+ }
-
-- ath_tx_fill_desc(sc, bf, txq, aggr_len);
-- ath_tx_txqaddbuf(sc, txq, &bf_q, false);
-- } while (!last);
-+ ath_tx_fill_desc(sc, bf, txq, aggr_len);
-+ ath_tx_txqaddbuf(sc, txq, &bf_q, false);
-+ return true;
- }
-
- int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
-@@ -1796,25 +1797,27 @@ void ath_tx_cleanupq(struct ath_softc *s
- */
- void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq)
- {
-- struct ath_atx_ac *ac, *ac_tmp, *last_ac;
-+ struct ath_atx_ac *ac, *last_ac;
- struct ath_atx_tid *tid, *last_tid;
-+ bool sent = false;
-
- if (test_bit(SC_OP_HW_RESET, &sc->sc_flags) ||
-- list_empty(&txq->axq_acq) ||
-- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
-+ list_empty(&txq->axq_acq))
- return;
-
- rcu_read_lock();
-
-- ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list);
- last_ac = list_entry(txq->axq_acq.prev, struct ath_atx_ac, list);
-+ while (!list_empty(&txq->axq_acq)) {
-+ bool stop = false;
-
-- list_for_each_entry_safe(ac, ac_tmp, &txq->axq_acq, list) {
-+ ac = list_first_entry(&txq->axq_acq, struct ath_atx_ac, list);
- last_tid = list_entry(ac->tid_q.prev, struct ath_atx_tid, list);
- list_del(&ac->list);
- ac->sched = false;
-
- while (!list_empty(&ac->tid_q)) {
-+
- tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
- list);
- list_del(&tid->list);
-@@ -1823,7 +1826,8 @@ void ath_txq_schedule(struct ath_softc *
- if (tid->paused)
- continue;
-
-- ath_tx_sched_aggr(sc, txq, tid);
-+ if (ath_tx_sched_aggr(sc, txq, tid, &stop))
-+ sent = true;
-
- /*
- * add tid to round-robin queue if more frames
-@@ -1832,8 +1836,7 @@ void ath_txq_schedule(struct ath_softc *
- if (ath_tid_has_buffered(tid))
- ath_tx_queue_tid(txq, tid);
-
-- if (tid == last_tid ||
-- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
-+ if (stop || tid == last_tid)
- break;
- }
-
-@@ -1842,9 +1845,17 @@ void ath_txq_schedule(struct ath_softc *
- list_add_tail(&ac->list, &txq->axq_acq);
- }
-
-- if (ac == last_ac ||
-- txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH)
-+ if (stop)
- break;
-+
-+ if (ac == last_ac) {
-+ if (!sent)
-+ break;
-+
-+ sent = false;
-+ last_ac = list_entry(txq->axq_acq.prev,
-+ struct ath_atx_ac, list);
-+ }
- }
-
- rcu_read_unlock();
+++ /dev/null
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -265,6 +265,7 @@ struct ath_node {
- u8 mpdudensity;
-
- bool sleeping;
-+ bool no_ps_filter;
-
- #if defined(CPTCFG_MAC80211_DEBUGFS) && defined(CPTCFG_ATH9K_DEBUGFS)
- struct dentry *node_stat;
-@@ -364,6 +365,7 @@ void ath9k_release_buffered_frames(struc
- /********/
-
- struct ath_vif {
-+ struct ath_node mcast_node;
- int av_bslot;
- bool primary_sta_vif;
- __le64 tsf_adjust; /* TSF adjustment for staggered beacons */
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -971,6 +971,8 @@ static int ath9k_add_interface(struct ie
- struct ath_softc *sc = hw->priv;
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
-+ struct ath_vif *avp = (void *)vif->drv_priv;
-+ struct ath_node *an = &avp->mcast_node;
-
- mutex_lock(&sc->mutex);
-
-@@ -984,6 +986,12 @@ static int ath9k_add_interface(struct ie
- if (ath9k_uses_beacons(vif->type))
- ath9k_beacon_assign_slot(sc, vif);
-
-+ an->sc = sc;
-+ an->sta = NULL;
-+ an->vif = vif;
-+ an->no_ps_filter = true;
-+ ath_tx_node_init(sc, an);
-+
- mutex_unlock(&sc->mutex);
- return 0;
- }
-@@ -1021,6 +1029,7 @@ static void ath9k_remove_interface(struc
- {
- struct ath_softc *sc = hw->priv;
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-+ struct ath_vif *avp = (void *)vif->drv_priv;
-
- ath_dbg(common, CONFIG, "Detach Interface\n");
-
-@@ -1035,6 +1044,8 @@ static void ath9k_remove_interface(struc
- ath9k_calculate_summary_state(hw, NULL);
- ath9k_ps_restore(sc);
-
-+ ath_tx_node_cleanup(sc, &avp->mcast_node);
-+
- mutex_unlock(&sc->mutex);
- }
-
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -135,6 +135,9 @@ static struct ath_frame_info *get_frame_
-
- static void ath_send_bar(struct ath_atx_tid *tid, u16 seqno)
- {
-+ if (!tid->an->sta)
-+ return;
-+
- ieee80211_send_bar(tid->an->vif, tid->an->sta->addr, tid->tidno,
- seqno << IEEE80211_SEQ_SEQ_SHIFT);
- }
-@@ -1354,7 +1357,7 @@ static bool ath_tx_sched_aggr(struct ath
- if (list_empty(&bf_q))
- return false;
-
-- if (tid->ac->clear_ps_filter) {
-+ if (tid->ac->clear_ps_filter || tid->an->no_ps_filter) {
- tid->ac->clear_ps_filter = false;
- tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
- }
-@@ -1544,7 +1547,7 @@ void ath9k_release_buffered_frames(struc
- sent++;
- TX_STAT_INC(txq->axq_qnum, a_queued_hw);
-
-- if (!ath_tid_has_buffered(tid))
-+ if (an->sta && !ath_tid_has_buffered(tid))
- ieee80211_sta_set_buffered(an->sta, i, false);
- }
- ath_txq_unlock_complete(sc, tid->ac->txq);
-@@ -2076,6 +2079,7 @@ static int ath_tx_prepare(struct ieee802
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_sta *sta = txctl->sta;
- struct ieee80211_vif *vif = info->control.vif;
-+ struct ath_vif *avp;
- struct ath_softc *sc = hw->priv;
- int frmlen = skb->len + FCS_LEN;
- int padpos, padsize;
-@@ -2083,6 +2087,10 @@ static int ath_tx_prepare(struct ieee802
- /* NOTE: sta can be NULL according to net/mac80211.h */
- if (sta)
- txctl->an = (struct ath_node *)sta->drv_priv;
-+ else if (vif && ieee80211_is_data(hdr->frame_control)) {
-+ avp = (void *)vif->drv_priv;
-+ txctl->an = &avp->mcast_node;
-+ }
-
- if (info->control.hw_key)
- frmlen += info->control.hw_key->icv_len;
projects / openwrt.git / commitdiff