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-rw-r--r--package/kernel/mac80211/patches/304-ath9k-remove-struct-ath_atx_ac.patch385
1 files changed, 385 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/304-ath9k-remove-struct-ath_atx_ac.patch b/package/kernel/mac80211/patches/304-ath9k-remove-struct-ath_atx_ac.patch
new file mode 100644
index 0000000000..9f04276176
--- /dev/null
+++ b/package/kernel/mac80211/patches/304-ath9k-remove-struct-ath_atx_ac.patch
@@ -0,0 +1,385 @@
+From: Felix Fietkau <nbd@openwrt.org>
+Date: Sat, 4 Apr 2015 18:39:06 +0200
+Subject: [PATCH] ath9k: remove struct ath_atx_ac
+
+struct ath_atx_ac contains a list of active TIDs belonging to one WMM AC.
+This patch changes the code to track active station TIDs in the txq directly.
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+---
+
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -173,14 +173,6 @@ struct ath_txq {
+ struct sk_buff_head complete_q;
+ };
+
+-struct ath_atx_ac {
+- struct ath_txq *txq;
+- struct list_head list;
+- struct list_head tid_q;
+- bool clear_ps_filter;
+- bool sched;
+-};
+-
+ struct ath_frame_info {
+ struct ath_buf *bf;
+ u16 framelen;
+@@ -243,7 +235,7 @@ struct ath_atx_tid {
+ struct sk_buff_head buf_q;
+ struct sk_buff_head retry_q;
+ struct ath_node *an;
+- struct ath_atx_ac *ac;
++ struct ath_txq *txq;
+ unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)];
+ u16 seq_start;
+ u16 seq_next;
+@@ -255,6 +247,7 @@ struct ath_atx_tid {
+ s8 bar_index;
+ bool sched;
+ bool active;
++ bool clear_ps_filter;
+ };
+
+ struct ath_node {
+@@ -262,7 +255,6 @@ struct ath_node {
+ struct ieee80211_sta *sta; /* station struct we're part of */
+ struct ieee80211_vif *vif; /* interface with which we're associated */
+ struct ath_atx_tid tid[IEEE80211_NUM_TIDS];
+- struct ath_atx_ac ac[IEEE80211_NUM_ACS];
+
+ u16 maxampdu;
+ u8 mpdudensity;
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -106,7 +106,6 @@ void ath_txq_unlock_complete(struct ath_
+ static void ath_tx_queue_tid(struct ath_softc *sc, struct ath_txq *txq,
+ struct ath_atx_tid *tid)
+ {
+- struct ath_atx_ac *ac = tid->ac;
+ struct list_head *list;
+ struct ath_vif *avp = (struct ath_vif *) tid->an->vif->drv_priv;
+ struct ath_chanctx *ctx = avp->chanctx;
+@@ -118,15 +117,8 @@ static void ath_tx_queue_tid(struct ath_
+ return;
+
+ tid->sched = true;
+- list_add_tail(&tid->list, &ac->tid_q);
+-
+- if (ac->sched)
+- return;
+-
+- ac->sched = true;
+-
+ list = &ctx->acq[TID_TO_WME_AC(tid->tidno)];
+- list_add_tail(&ac->list, list);
++ list_add_tail(&tid->list, list);
+ }
+
+ static struct ath_frame_info *get_frame_info(struct sk_buff *skb)
+@@ -223,7 +215,7 @@ static struct sk_buff *ath_tid_dequeue(s
+ static void
+ ath_tx_tid_change_state(struct ath_softc *sc, struct ath_atx_tid *tid)
+ {
+- struct ath_txq *txq = tid->ac->txq;
++ struct ath_txq *txq = tid->txq;
+ struct ieee80211_tx_info *tx_info;
+ struct sk_buff *skb, *tskb;
+ struct ath_buf *bf;
+@@ -252,7 +244,7 @@ ath_tx_tid_change_state(struct ath_softc
+
+ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
+ {
+- struct ath_txq *txq = tid->ac->txq;
++ struct ath_txq *txq = tid->txq;
+ struct sk_buff *skb;
+ struct ath_buf *bf;
+ struct list_head bf_head;
+@@ -659,7 +651,7 @@ static void ath_tx_complete_aggr(struct
+ ath_tx_queue_tid(sc, txq, tid);
+
+ if (ts->ts_status & (ATH9K_TXERR_FILT | ATH9K_TXERR_XRETRY))
+- tid->ac->clear_ps_filter = true;
++ tid->clear_ps_filter = true;
+ }
+ }
+
+@@ -749,7 +741,7 @@ static u32 ath_lookup_rate(struct ath_so
+ struct ieee80211_tx_rate *rates;
+ u32 max_4ms_framelen, frmlen;
+ u16 aggr_limit, bt_aggr_limit, legacy = 0;
+- int q = tid->ac->txq->mac80211_qnum;
++ int q = tid->txq->mac80211_qnum;
+ int i;
+
+ skb = bf->bf_mpdu;
+@@ -1486,8 +1478,8 @@ static bool ath_tx_sched_aggr(struct ath
+ if (list_empty(&bf_q))
+ return false;
+
+- if (tid->ac->clear_ps_filter || tid->an->no_ps_filter) {
+- tid->ac->clear_ps_filter = false;
++ if (tid->clear_ps_filter || tid->an->no_ps_filter) {
++ tid->clear_ps_filter = false;
+ tx_info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+ }
+
+@@ -1506,7 +1498,7 @@ int ath_tx_aggr_start(struct ath_softc *
+
+ an = (struct ath_node *)sta->drv_priv;
+ txtid = ATH_AN_2_TID(an, tid);
+- txq = txtid->ac->txq;
++ txq = txtid->txq;
+
+ ath_txq_lock(sc, txq);
+
+@@ -1540,7 +1532,7 @@ void ath_tx_aggr_stop(struct ath_softc *
+ {
+ struct ath_node *an = (struct ath_node *)sta->drv_priv;
+ struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
+- struct ath_txq *txq = txtid->ac->txq;
++ struct ath_txq *txq = txtid->txq;
+
+ ath_txq_lock(sc, txq);
+ txtid->active = false;
+@@ -1553,7 +1545,6 @@ void ath_tx_aggr_sleep(struct ieee80211_
+ struct ath_node *an)
+ {
+ struct ath_atx_tid *tid;
+- struct ath_atx_ac *ac;
+ struct ath_txq *txq;
+ bool buffered;
+ int tidno;
+@@ -1561,8 +1552,7 @@ void ath_tx_aggr_sleep(struct ieee80211_
+ for (tidno = 0, tid = &an->tid[tidno];
+ tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
+
+- ac = tid->ac;
+- txq = ac->txq;
++ txq = tid->txq;
+
+ ath_txq_lock(sc, txq);
+
+@@ -1576,11 +1566,6 @@ void ath_tx_aggr_sleep(struct ieee80211_
+ tid->sched = false;
+ list_del(&tid->list);
+
+- if (ac->sched) {
+- ac->sched = false;
+- list_del(&ac->list);
+- }
+-
+ ath_txq_unlock(sc, txq);
+
+ ieee80211_sta_set_buffered(sta, tidno, buffered);
+@@ -1590,18 +1575,16 @@ void ath_tx_aggr_sleep(struct ieee80211_
+ void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an)
+ {
+ struct ath_atx_tid *tid;
+- struct ath_atx_ac *ac;
+ struct ath_txq *txq;
+ int tidno;
+
+ for (tidno = 0, tid = &an->tid[tidno];
+ tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
+
+- ac = tid->ac;
+- txq = ac->txq;
++ txq = tid->txq;
+
+ ath_txq_lock(sc, txq);
+- ac->clear_ps_filter = true;
++ tid->clear_ps_filter = true;
+
+ if (ath_tid_has_buffered(tid)) {
+ ath_tx_queue_tid(sc, txq, tid);
+@@ -1621,7 +1604,7 @@ void ath_tx_aggr_resume(struct ath_softc
+
+ an = (struct ath_node *)sta->drv_priv;
+ tid = ATH_AN_2_TID(an, tidno);
+- txq = tid->ac->txq;
++ txq = tid->txq;
+
+ ath_txq_lock(sc, txq);
+
+@@ -1660,7 +1643,7 @@ void ath9k_release_buffered_frames(struc
+
+ tid = ATH_AN_2_TID(an, i);
+
+- ath_txq_lock(sc, tid->ac->txq);
++ ath_txq_lock(sc, tid->txq);
+ while (nframes > 0) {
+ bf = ath_tx_get_tid_subframe(sc, sc->tx.uapsdq, tid, &tid_q);
+ if (!bf)
+@@ -1684,7 +1667,7 @@ void ath9k_release_buffered_frames(struc
+ if (an->sta && !ath_tid_has_buffered(tid))
+ ieee80211_sta_set_buffered(an->sta, i, false);
+ }
+- ath_txq_unlock_complete(sc, tid->ac->txq);
++ ath_txq_unlock_complete(sc, tid->txq);
+ }
+
+ if (list_empty(&bf_q))
+@@ -1933,9 +1916,8 @@ void ath_tx_cleanupq(struct ath_softc *s
+ void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq)
+ {
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+- struct ath_atx_ac *ac, *last_ac;
+ struct ath_atx_tid *tid, *last_tid;
+- struct list_head *ac_list;
++ struct list_head *tid_list;
+ bool sent = false;
+
+ if (txq->mac80211_qnum < 0)
+@@ -1945,63 +1927,46 @@ void ath_txq_schedule(struct ath_softc *
+ return;
+
+ spin_lock_bh(&sc->chan_lock);
+- ac_list = &sc->cur_chan->acq[txq->mac80211_qnum];
++ tid_list = &sc->cur_chan->acq[txq->mac80211_qnum];
+
+- if (list_empty(ac_list)) {
++ if (list_empty(tid_list)) {
+ spin_unlock_bh(&sc->chan_lock);
+ return;
+ }
+
+ rcu_read_lock();
+
+- last_ac = list_entry(ac_list->prev, struct ath_atx_ac, list);
+- while (!list_empty(ac_list)) {
++ last_tid = list_entry(tid_list->prev, struct ath_atx_tid, list);
++ while (!list_empty(tid_list)) {
+ bool stop = false;
+
+ if (sc->cur_chan->stopped)
+ break;
+
+- ac = list_first_entry(ac_list, 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);
+- tid->sched = false;
+-
+- 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 (ath_tid_has_buffered(tid))
+- ath_tx_queue_tid(sc, txq, tid);
++ tid = list_first_entry(tid_list, struct ath_atx_tid, list);
++ list_del(&tid->list);
++ tid->sched = false;
+
+- if (stop || tid == last_tid)
+- break;
+- }
++ if (ath_tx_sched_aggr(sc, txq, tid, &stop))
++ sent = true;
+
+- if (!list_empty(&ac->tid_q) && !ac->sched) {
+- ac->sched = true;
+- list_add_tail(&ac->list, ac_list);
+- }
++ /*
++ * add tid to round-robin queue if more frames
++ * are pending for the tid
++ */
++ if (ath_tid_has_buffered(tid))
++ ath_tx_queue_tid(sc, txq, tid);
+
+ if (stop)
+ break;
+
+- if (ac == last_ac) {
++ if (tid == last_tid) {
+ if (!sent)
+ break;
+
+ sent = false;
+- last_ac = list_entry(ac_list->prev,
+- struct ath_atx_ac, list);
++ last_tid = list_entry(tid_list->prev,
++ struct ath_atx_tid, list);
+ }
+ }
+
+@@ -2391,10 +2356,10 @@ int ath_tx_start(struct ieee80211_hw *hw
+ txq = sc->tx.uapsdq;
+ ath_txq_lock(sc, txq);
+ } else if (txctl->an && queue) {
+- WARN_ON(tid->ac->txq != txctl->txq);
++ WARN_ON(tid->txq != txctl->txq);
+
+ if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
+- tid->ac->clear_ps_filter = true;
++ tid->clear_ps_filter = true;
+
+ /*
+ * Add this frame to software queue for scheduling later
+@@ -2888,7 +2853,6 @@ int ath_tx_init(struct ath_softc *sc, in
+ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an)
+ {
+ struct ath_atx_tid *tid;
+- struct ath_atx_ac *ac;
+ int tidno, acno;
+
+ for (tidno = 0, tid = &an->tid[tidno];
+@@ -2901,24 +2865,16 @@ void ath_tx_node_init(struct ath_softc *
+ tid->baw_head = tid->baw_tail = 0;
+ tid->sched = false;
+ tid->active = false;
++ tid->clear_ps_filter = true;
+ __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];
+- }
+-
+- 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);
++ tid->txq = sc->tx.txq_map[acno];
+ }
+ }
+
+ void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an)
+ {
+- struct ath_atx_ac *ac;
+ struct ath_atx_tid *tid;
+ struct ath_txq *txq;
+ int tidno;
+@@ -2926,8 +2882,7 @@ void ath_tx_node_cleanup(struct ath_soft
+ for (tidno = 0, tid = &an->tid[tidno];
+ tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
+
+- ac = tid->ac;
+- txq = ac->txq;
++ txq = tid->txq;
+
+ ath_txq_lock(sc, txq);
+
+@@ -2936,11 +2891,6 @@ void ath_tx_node_cleanup(struct ath_soft
+ tid->sched = false;
+ }
+
+- if (ac->sched) {
+- list_del(&ac->list);
+- tid->ac->sched = false;
+- }
+-
+ ath_tid_drain(sc, txq, tid);
+ tid->active = false;
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-02 22:07:41 +0000