diff options
Diffstat (limited to 'package/mac80211/patches/541-ath9k_aggr_queue_cleanup.patch')
| -rw-r--r-- | package/mac80211/patches/541-ath9k_aggr_queue_cleanup.patch | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/package/mac80211/patches/541-ath9k_aggr_queue_cleanup.patch b/package/mac80211/patches/541-ath9k_aggr_queue_cleanup.patch new file mode 100644 index 000000000..1ea3c143f --- /dev/null +++ b/package/mac80211/patches/541-ath9k_aggr_queue_cleanup.patch @@ -0,0 +1,281 @@ +--- a/drivers/net/wireless/ath/ath9k/ath9k.h ++++ b/drivers/net/wireless/ath/ath9k/ath9k.h +@@ -206,6 +206,7 @@ struct ath_atx_ac { + }; + + struct ath_frame_info { ++ struct ath_buf *bf; + int framelen; + u32 keyix; + enum ath9k_key_type keytype; +@@ -235,7 +236,7 @@ struct ath_buf { + + struct ath_atx_tid { + struct list_head list; +- struct list_head buf_q; ++ struct sk_buff_head buf_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/debug.c ++++ b/drivers/net/wireless/ath/ath9k/debug.c +@@ -711,7 +711,7 @@ static ssize_t read_file_stations(struct + " tid: %p %s %s %i %p %p\n", + tid, tid->sched ? "sched" : "idle", + tid->paused ? "paused" : "running", +- list_empty(&tid->buf_q), ++ skb_queue_empty(&tid->buf_q), + tid->an, tid->ac); + if (len >= size) + goto done; +--- a/drivers/net/wireless/ath/ath9k/xmit.c ++++ b/drivers/net/wireless/ath/ath9k/xmit.c +@@ -129,7 +129,7 @@ static void ath_tx_resume_tid(struct ath + spin_lock_bh(&txq->axq_lock); + tid->paused = false; + +- if (list_empty(&tid->buf_q)) ++ if (skb_queue_empty(&tid->buf_q)) + goto unlock; + + ath_tx_queue_tid(txq, tid); +@@ -149,6 +149,7 @@ static struct ath_frame_info *get_frame_ + static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid) + { + struct ath_txq *txq = tid->ac->txq; ++ struct sk_buff *skb; + struct ath_buf *bf; + struct list_head bf_head; + struct ath_tx_status ts; +@@ -159,12 +160,13 @@ static void ath_tx_flush_tid(struct ath_ + memset(&ts, 0, sizeof(ts)); + spin_lock_bh(&txq->axq_lock); + +- while (!list_empty(&tid->buf_q)) { +- bf = list_first_entry(&tid->buf_q, struct ath_buf, list); +- list_move_tail(&bf->list, &bf_head); ++ while ((skb = __skb_dequeue(&tid->buf_q))) { ++ fi = get_frame_info(skb); ++ bf = fi->bf; ++ ++ list_add_tail(&bf->list, &bf_head); + + spin_unlock_bh(&txq->axq_lock); +- fi = get_frame_info(bf->bf_mpdu); + if (fi->retries) { + ath_tx_update_baw(sc, tid, fi->seqno); + ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 1); +@@ -219,6 +221,7 @@ static void ath_tid_drain(struct ath_sof + struct ath_atx_tid *tid) + + { ++ struct sk_buff *skb; + struct ath_buf *bf; + struct list_head bf_head; + struct ath_tx_status ts; +@@ -227,14 +230,12 @@ static void ath_tid_drain(struct ath_sof + memset(&ts, 0, sizeof(ts)); + INIT_LIST_HEAD(&bf_head); + +- for (;;) { +- if (list_empty(&tid->buf_q)) +- break; ++ while ((skb = __skb_dequeue(&tid->buf_q))) { ++ fi = get_frame_info(skb); ++ bf = fi->bf; + +- bf = list_first_entry(&tid->buf_q, struct ath_buf, list); +- list_move_tail(&bf->list, &bf_head); ++ list_add_tail(&bf->list, &bf_head); + +- fi = get_frame_info(bf->bf_mpdu); + if (fi->retries) + ath_tx_update_baw(sc, tid, fi->seqno); + +@@ -352,7 +353,8 @@ static void ath_tx_complete_aggr(struct + struct ieee80211_tx_info *tx_info; + struct ath_atx_tid *tid = NULL; + struct ath_buf *bf_next, *bf_last = bf->bf_lastbf; +- struct list_head bf_head, bf_pending; ++ struct list_head bf_head; ++ struct sk_buff_head bf_pending; + u16 seq_st = 0, acked_cnt = 0, txfail_cnt = 0; + u32 ba[WME_BA_BMP_SIZE >> 5]; + int isaggr, txfail, txpending, sendbar = 0, needreset = 0, nbad = 0; +@@ -430,8 +432,7 @@ static void ath_tx_complete_aggr(struct + } + } + +- INIT_LIST_HEAD(&bf_pending); +- INIT_LIST_HEAD(&bf_head); ++ __skb_queue_head_init(&bf_pending); + + ath_tx_count_frames(sc, bf, ts, txok, &nframes, &nbad); + while (bf) { +@@ -476,10 +477,10 @@ static void ath_tx_complete_aggr(struct + * Make sure the last desc is reclaimed if it + * not a holding desc. + */ +- if (!bf_last->bf_stale || bf_next != NULL) ++ INIT_LIST_HEAD(&bf_head); ++ if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) || ++ bf_next != NULL || !bf_last->bf_stale) + list_move_tail(&bf->list, &bf_head); +- else +- INIT_LIST_HEAD(&bf_head); + + if (!txpending || (tid->state & AGGR_CLEANUP)) { + /* +@@ -530,7 +531,7 @@ static void ath_tx_complete_aggr(struct + + ath9k_hw_cleartxdesc(sc->sc_ah, + tbf->bf_desc); +- list_add_tail(&tbf->list, &bf_head); ++ fi->bf = tbf; + } else { + /* + * Clear descriptor status words for +@@ -545,21 +546,21 @@ static void ath_tx_complete_aggr(struct + * Put this buffer to the temporary pending + * queue to retain ordering + */ +- list_splice_tail_init(&bf_head, &bf_pending); ++ __skb_queue_tail(&bf_pending, skb); + } + + bf = bf_next; + } + + /* prepend un-acked frames to the beginning of the pending frame queue */ +- if (!list_empty(&bf_pending)) { ++ if (!skb_queue_empty(&bf_pending)) { + if (an->sleeping) + ieee80211_sta_set_tim(sta); + + spin_lock_bh(&txq->axq_lock); + if (clear_filter) + tid->ac->clear_ps_filter = true; +- list_splice(&bf_pending, &tid->buf_q); ++ skb_queue_splice(&bf_pending, &tid->buf_q); + if (!an->sleeping) + ath_tx_queue_tid(txq, tid); + spin_unlock_bh(&txq->axq_lock); +@@ -721,19 +722,22 @@ static enum ATH_AGGR_STATUS ath_tx_form_ + int *aggr_len) + { + #define PADBYTES(_len) ((4 - ((_len) % 4)) % 4) +- struct ath_buf *bf, *bf_first, *bf_prev = NULL; ++ struct ath_buf *bf, *bf_first = NULL, *bf_prev = NULL; + int rl = 0, nframes = 0, ndelim, prev_al = 0; + 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; +- +- bf_first = list_first_entry(&tid->buf_q, struct ath_buf, list); ++ struct sk_buff *skb; + + do { +- bf = list_first_entry(&tid->buf_q, struct ath_buf, list); +- fi = get_frame_info(bf->bf_mpdu); ++ skb = skb_peek(&tid->buf_q); ++ fi = get_frame_info(skb); ++ bf = fi->bf; ++ ++ if (!bf_first) ++ bf_first = bf; + + /* do not step over block-ack window */ + if (!BAW_WITHIN(tid->seq_start, tid->baw_size, fi->seqno)) { +@@ -784,7 +788,9 @@ static enum ATH_AGGR_STATUS ath_tx_form_ + if (!fi->retries) + ath_tx_addto_baw(sc, tid, fi->seqno); + ath9k_hw_set11n_aggr_middle(sc->sc_ah, bf->bf_desc, ndelim); +- list_move_tail(&bf->list, bf_q); ++ ++ __skb_unlink(skb, &tid->buf_q); ++ list_add_tail(&bf->list, bf_q); + if (bf_prev) { + bf_prev->bf_next = bf; + ath9k_hw_set_desc_link(sc->sc_ah, bf_prev->bf_desc, +@@ -792,7 +798,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_ + } + bf_prev = bf; + +- } while (!list_empty(&tid->buf_q)); ++ } while (!skb_queue_empty(&tid->buf_q)); + + *aggr_len = al; + +@@ -810,7 +816,7 @@ static void ath_tx_sched_aggr(struct ath + int aggr_len; + + do { +- if (list_empty(&tid->buf_q)) ++ if (skb_queue_empty(&tid->buf_q)) + return; + + INIT_LIST_HEAD(&bf_q); +@@ -931,7 +937,7 @@ bool ath_tx_aggr_sleep(struct ath_softc + + spin_lock_bh(&txq->axq_lock); + +- if (!list_empty(&tid->buf_q)) ++ if (!skb_queue_empty(&tid->buf_q)) + buffered = true; + + tid->sched = false; +@@ -964,7 +970,7 @@ void ath_tx_aggr_wakeup(struct ath_softc + spin_lock_bh(&txq->axq_lock); + ac->clear_ps_filter = true; + +- if (!list_empty(&tid->buf_q) && !tid->paused) { ++ if (!skb_queue_empty(&tid->buf_q) && !tid->paused) { + ath_tx_queue_tid(txq, tid); + ath_txq_schedule(sc, txq); + } +@@ -1308,7 +1314,7 @@ void ath_txq_schedule(struct ath_softc * + * add tid to round-robin queue if more frames + * are pending for the tid + */ +- if (!list_empty(&tid->buf_q)) ++ if (!skb_queue_empty(&tid->buf_q)) + ath_tx_queue_tid(txq, tid); + + if (tid == last_tid || +@@ -1414,7 +1420,7 @@ static void ath_tx_send_ampdu(struct ath + * - seqno is not within block-ack window + * - h/w queue depth exceeds low water mark + */ +- if (!list_empty(&tid->buf_q) || tid->paused || ++ if (!skb_queue_empty(&tid->buf_q) || tid->paused || + !BAW_WITHIN(tid->seq_start, tid->baw_size, fi->seqno) || + txctl->txq->axq_ampdu_depth >= ATH_AGGR_MIN_QDEPTH) { + /* +@@ -1422,7 +1428,7 @@ static void ath_tx_send_ampdu(struct ath + * for aggregation. + */ + TX_STAT_INC(txctl->txq->axq_qnum, a_queued_sw); +- list_add_tail(&bf->list, &tid->buf_q); ++ __skb_queue_tail(&tid->buf_q, bf->bf_mpdu); + if (!txctl->an || !txctl->an->sleeping) + ath_tx_queue_tid(txctl->txq, tid); + return; +@@ -1753,6 +1759,7 @@ static struct ath_buf *ath_tx_setup_buff + bf->bf_buf_addr, + txq->axq_qnum); + ++ fi->bf = bf; + + return bf; + } +@@ -2370,7 +2377,7 @@ void ath_tx_node_init(struct ath_softc * + tid->sched = false; + tid->paused = false; + tid->state &= ~AGGR_CLEANUP; +- INIT_LIST_HEAD(&tid->buf_q); ++ __skb_queue_head_init(&tid->buf_q); + acno = TID_TO_WME_AC(tidno); + tid->ac = &an->ac[acno]; + tid->state &= ~AGGR_ADDBA_COMPLETE; |