diff options
3 files changed, 0 insertions, 640 deletions
diff --git a/package/mac80211/patches/567-ath9k_tid_queue_non_aggr.patch b/package/mac80211/patches/567-ath9k_tid_queue_non_aggr.patch deleted file mode 100644 index 4835a9c2ed..0000000000 --- a/package/mac80211/patches/567-ath9k_tid_queue_non_aggr.patch +++ /dev/null @@ -1,384 +0,0 @@ ---- 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/mac80211/patches/568-ath9k_tid_fairness.patch b/package/mac80211/patches/568-ath9k_tid_fairness.patch deleted file mode 100644 index 6512cf04a0..0000000000 --- a/package/mac80211/patches/568-ath9k_tid_fairness.patch +++ /dev/null @@ -1,148 +0,0 @@ ---- 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/mac80211/patches/569-ath9k_multicast_node.patch b/package/mac80211/patches/569-ath9k_multicast_node.patch deleted file mode 100644 index 60a543bc08..0000000000 --- a/package/mac80211/patches/569-ath9k_multicast_node.patch +++ /dev/null @@ -1,108 +0,0 @@ ---- 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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