diff options
Diffstat (limited to 'package/kernel/mac80211/patches')
10 files changed, 1172 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/560-ath9k_prepare_tid_queue_split.patch b/package/kernel/mac80211/patches/560-ath9k_prepare_tid_queue_split.patch new file mode 100644 index 0000000000..d2c2bac78c --- /dev/null +++ b/package/kernel/mac80211/patches/560-ath9k_prepare_tid_queue_split.patch @@ -0,0 +1,190 @@ +--- 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) { diff --git a/package/kernel/mac80211/patches/561-ath9k_split_tid_queue.patch b/package/kernel/mac80211/patches/561-ath9k_split_tid_queue.patch new file mode 100644 index 0000000000..c10e0f1231 --- /dev/null +++ b/package/kernel/mac80211/patches/561-ath9k_split_tid_queue.patch @@ -0,0 +1,62 @@ +--- 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]; + } diff --git a/package/kernel/mac80211/patches/562-ath9k_get_skb_tid.patch b/package/kernel/mac80211/patches/562-ath9k_get_skb_tid.patch new file mode 100644 index 0000000000..a8d2cba677 --- /dev/null +++ b/package/kernel/mac80211/patches/562-ath9k_get_skb_tid.patch @@ -0,0 +1,69 @@ +--- 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); + } diff --git a/package/kernel/mac80211/patches/563-ath9k_queue_cabq_debug.patch b/package/kernel/mac80211/patches/563-ath9k_queue_cabq_debug.patch new file mode 100644 index 0000000000..22cba43003 --- /dev/null +++ b/package/kernel/mac80211/patches/563-ath9k_queue_cabq_debug.patch @@ -0,0 +1,61 @@ +--- 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; + diff --git a/package/kernel/mac80211/patches/564-ath9k_cleanup_form_aggr.patch b/package/kernel/mac80211/patches/564-ath9k_cleanup_form_aggr.patch new file mode 100644 index 0000000000..4c79c37b07 --- /dev/null +++ b/package/kernel/mac80211/patches/564-ath9k_cleanup_form_aggr.patch @@ -0,0 +1,68 @@ +--- 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 diff --git a/package/kernel/mac80211/patches/565-ath9k_baw_tracking_fix.patch b/package/kernel/mac80211/patches/565-ath9k_baw_tracking_fix.patch new file mode 100644 index 0000000000..bad2bae566 --- /dev/null +++ b/package/kernel/mac80211/patches/565-ath9k_baw_tracking_fix.patch @@ -0,0 +1,71 @@ +--- 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); diff --git a/package/kernel/mac80211/patches/566-ath9k_prepare_tid_queueing.patch b/package/kernel/mac80211/patches/566-ath9k_prepare_tid_queueing.patch new file mode 100644 index 0000000000..65e4be3e5d --- /dev/null +++ b/package/kernel/mac80211/patches/566-ath9k_prepare_tid_queueing.patch @@ -0,0 +1,11 @@ +--- a/drivers/net/wireless/ath/ath9k/xmit.c ++++ b/drivers/net/wireless/ath/ath9k/xmit.c +@@ -1328,7 +1328,7 @@ 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); + } diff --git a/package/kernel/mac80211/patches/567-ath9k_tid_queue_non_aggr.patch b/package/kernel/mac80211/patches/567-ath9k_tid_queue_non_aggr.patch new file mode 100644 index 0000000000..4835a9c2ed --- /dev/null +++ b/package/kernel/mac80211/patches/567-ath9k_tid_queue_non_aggr.patch @@ -0,0 +1,384 @@ +--- 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; + +@@ -893,58 +904,45 @@ ath_tx_get_tid_subframe(struct ath_softc + 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; ++ 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; + } + +@@ -974,11 +972,26 @@ 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 + } + +@@ -1239,14 +1252,45 @@ 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 { ++ 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; ++ ++ 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)) +@@ -1254,38 +1298,31 @@ 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 (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, +@@ -1844,58 +1881,6 @@ 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) + { +@@ -2121,20 +2106,25 @@ 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; + } + +@@ -2397,8 +2387,7 @@ 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); +@@ -2628,6 +2617,7 @@ 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/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 */ +--- 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; diff --git a/package/kernel/mac80211/patches/568-ath9k_tid_fairness.patch b/package/kernel/mac80211/patches/568-ath9k_tid_fairness.patch new file mode 100644 index 0000000000..6512cf04a0 --- /dev/null +++ b/package/kernel/mac80211/patches/568-ath9k_tid_fairness.patch @@ -0,0 +1,148 @@ +--- a/drivers/net/wireless/ath/ath9k/xmit.c ++++ b/drivers/net/wireless/ath/ath9k/xmit.c +@@ -1282,8 +1282,8 @@ 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; +@@ -1292,37 +1292,36 @@ 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); ++ if (!ath_tid_has_buffered(tid)) ++ return false; + +- bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q); +- if (!bf) +- break; +- +- 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)) ++ 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 (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, +@@ -1754,8 +1753,9 @@ 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) || +@@ -1764,15 +1764,17 @@ void ath_txq_schedule(struct ath_softc * + + 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); +@@ -1781,7 +1783,8 @@ 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 +@@ -1790,8 +1793,7 @@ 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; + } + +@@ -1800,9 +1802,17 @@ 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(); diff --git a/package/kernel/mac80211/patches/569-ath9k_multicast_node.patch b/package/kernel/mac80211/patches/569-ath9k_multicast_node.patch new file mode 100644 index 0000000000..60a543bc08 --- /dev/null +++ b/package/kernel/mac80211/patches/569-ath9k_multicast_node.patch @@ -0,0 +1,108 @@ +--- 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); + } +@@ -1314,7 +1317,7 @@ static bool ath_tx_sched_aggr(struct ath + else + ath_tx_form_burst(sc, txq, tid, &bf_q, bf, tid_q); + +- 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; + } +@@ -1500,7 +1503,7 @@ 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); +@@ -2033,6 +2036,7 @@ 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; +@@ -2040,6 +2044,10 @@ 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; 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