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-rw-r--r--package/kernel/mac80211/patches/335-ath9k-use-ieee80211_tx_status_noskb-where-possible.patch305
1 files changed, 0 insertions, 305 deletions
diff --git a/package/kernel/mac80211/patches/335-ath9k-use-ieee80211_tx_status_noskb-where-possible.patch b/package/kernel/mac80211/patches/335-ath9k-use-ieee80211_tx_status_noskb-where-possible.patch
deleted file mode 100644
index dbb5b90fe6..0000000000
--- a/package/kernel/mac80211/patches/335-ath9k-use-ieee80211_tx_status_noskb-where-possible.patch
+++ /dev/null
@@ -1,305 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Date: Tue, 2 Aug 2016 12:12:18 +0200
-Subject: [PATCH] ath9k: use ieee80211_tx_status_noskb where possible
-
-It removes the need for undoing the padding changes to skb->data and it
-improves performance by eliminating one tx status lookup per MPDU in the
-status path. It is also useful for preparing a follow-up fix to better
-handle powersave filtering.
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
-
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -50,9 +50,11 @@ static u16 bits_per_symbol[][2] = {
- static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_atx_tid *tid, struct sk_buff *skb);
- static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
-- int tx_flags, struct ath_txq *txq);
-+ int tx_flags, struct ath_txq *txq,
-+ struct ieee80211_sta *sta);
- static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
- struct ath_txq *txq, struct list_head *bf_q,
-+ struct ieee80211_sta *sta,
- struct ath_tx_status *ts, int txok);
- static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
- struct list_head *head, bool internal);
-@@ -77,6 +79,22 @@ enum {
- /* Aggregation logic */
- /*********************/
-
-+static void ath_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
-+{
-+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-+ struct ieee80211_sta *sta = info->status.status_driver_data[0];
-+
-+ if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
-+ ieee80211_tx_status(hw, skb);
-+ return;
-+ }
-+
-+ if (sta)
-+ ieee80211_tx_status_noskb(hw, sta, info);
-+
-+ dev_kfree_skb(skb);
-+}
-+
- void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq)
- __acquires(&txq->axq_lock)
- {
-@@ -92,6 +110,7 @@ void ath_txq_unlock(struct ath_softc *sc
- void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq)
- __releases(&txq->axq_lock)
- {
-+ struct ieee80211_hw *hw = sc->hw;
- struct sk_buff_head q;
- struct sk_buff *skb;
-
-@@ -100,7 +119,7 @@ void ath_txq_unlock_complete(struct ath_
- spin_unlock_bh(&txq->axq_lock);
-
- while ((skb = __skb_dequeue(&q)))
-- ieee80211_tx_status(sc->hw, skb);
-+ ath_tx_status(hw, skb);
- }
-
- static void ath_tx_queue_tid(struct ath_softc *sc, struct ath_txq *txq,
-@@ -268,7 +287,7 @@ static void ath_tx_flush_tid(struct ath_
- }
-
- list_add_tail(&bf->list, &bf_head);
-- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
-+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
- }
-
- if (sendbar) {
-@@ -333,12 +352,12 @@ static void ath_tid_drain(struct ath_sof
- bf = fi->bf;
-
- if (!bf) {
-- ath_tx_complete(sc, skb, ATH_TX_ERROR, txq);
-+ ath_tx_complete(sc, skb, ATH_TX_ERROR, txq, NULL);
- continue;
- }
-
- list_add_tail(&bf->list, &bf_head);
-- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
-+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
- }
- }
-
-@@ -441,12 +460,11 @@ static void ath_tx_count_frames(struct a
-
- static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
- struct ath_buf *bf, struct list_head *bf_q,
-+ struct ieee80211_sta *sta,
- struct ath_tx_status *ts, int txok)
- {
- struct ath_node *an = NULL;
- struct sk_buff *skb;
-- struct ieee80211_sta *sta;
-- struct ieee80211_hw *hw = sc->hw;
- struct ieee80211_hdr *hdr;
- struct ieee80211_tx_info *tx_info;
- struct ath_atx_tid *tid = NULL;
-@@ -475,12 +493,7 @@ static void ath_tx_complete_aggr(struct
- for (i = 0; i < ts->ts_rateindex; i++)
- retries += rates[i].count;
-
-- rcu_read_lock();
--
-- sta = ieee80211_find_sta_by_ifaddr(hw, hdr->addr1, hdr->addr2);
- if (!sta) {
-- rcu_read_unlock();
--
- INIT_LIST_HEAD(&bf_head);
- while (bf) {
- bf_next = bf->bf_next;
-@@ -488,7 +501,7 @@ static void ath_tx_complete_aggr(struct
- if (!bf->bf_state.stale || bf_next != NULL)
- list_move_tail(&bf->list, &bf_head);
-
-- ath_tx_complete_buf(sc, bf, txq, &bf_head, ts, 0);
-+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, ts, 0);
-
- bf = bf_next;
- }
-@@ -598,7 +611,7 @@ static void ath_tx_complete_aggr(struct
- ts);
- }
-
-- ath_tx_complete_buf(sc, bf, txq, &bf_head, ts,
-+ ath_tx_complete_buf(sc, bf, txq, &bf_head, sta, ts,
- !txfail);
- } else {
- if (tx_info->flags & IEEE80211_TX_STATUS_EOSP) {
-@@ -619,7 +632,8 @@ static void ath_tx_complete_aggr(struct
- ath_tx_update_baw(sc, tid, seqno);
-
- ath_tx_complete_buf(sc, bf, txq,
-- &bf_head, ts, 0);
-+ &bf_head, NULL, ts,
-+ 0);
- bar_index = max_t(int, bar_index,
- ATH_BA_INDEX(seq_first, seqno));
- break;
-@@ -663,8 +677,6 @@ static void ath_tx_complete_aggr(struct
- ath_txq_lock(sc, txq);
- }
-
-- rcu_read_unlock();
--
- if (needreset)
- ath9k_queue_reset(sc, RESET_TYPE_TX_ERROR);
- }
-@@ -679,7 +691,10 @@ static void ath_tx_process_buffer(struct
- struct ath_tx_status *ts, struct ath_buf *bf,
- struct list_head *bf_head)
- {
-+ struct ieee80211_hw *hw = sc->hw;
- struct ieee80211_tx_info *info;
-+ struct ieee80211_sta *sta;
-+ struct ieee80211_hdr *hdr;
- bool txok, flush;
-
- txok = !(ts->ts_status & ATH9K_TXERR_MASK);
-@@ -692,6 +707,10 @@ static void ath_tx_process_buffer(struct
-
- ts->duration = ath9k_hw_get_duration(sc->sc_ah, bf->bf_desc,
- ts->ts_rateindex);
-+
-+ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
-+ sta = ieee80211_find_sta_by_ifaddr(hw, hdr->addr1, hdr->addr2);
-+
- if (!bf_isampdu(bf)) {
- if (!flush) {
- info = IEEE80211_SKB_CB(bf->bf_mpdu);
-@@ -700,9 +719,9 @@ static void ath_tx_process_buffer(struct
- ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok);
- ath_dynack_sample_tx_ts(sc->sc_ah, bf->bf_mpdu, ts);
- }
-- ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok);
-+ ath_tx_complete_buf(sc, bf, txq, bf_head, sta, ts, txok);
- } else
-- ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok);
-+ ath_tx_complete_aggr(sc, txq, bf, bf_head, sta, ts, txok);
-
- if (!flush)
- ath_txq_schedule(sc, txq);
-@@ -938,7 +957,7 @@ ath_tx_get_tid_subframe(struct ath_softc
- list_add(&bf->list, &bf_head);
- __skb_unlink(skb, *q);
- ath_tx_update_baw(sc, tid, seqno);
-- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
-+ ath_tx_complete_buf(sc, bf, txq, &bf_head, NULL, &ts, 0);
- continue;
- }
-
-@@ -1847,6 +1866,7 @@ static void ath_drain_txq_list(struct at
- */
- void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq)
- {
-+ rcu_read_lock();
- ath_txq_lock(sc, txq);
-
- if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
-@@ -1865,6 +1885,7 @@ void ath_draintxq(struct ath_softc *sc,
- ath_drain_txq_list(sc, txq, &txq->axq_q);
-
- ath_txq_unlock_complete(sc, txq);
-+ rcu_read_unlock();
- }
-
- bool ath_drain_all_txq(struct ath_softc *sc)
-@@ -2487,7 +2508,8 @@ void ath_tx_cabq(struct ieee80211_hw *hw
- /*****************/
-
- static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
-- int tx_flags, struct ath_txq *txq)
-+ int tx_flags, struct ath_txq *txq,
-+ struct ieee80211_sta *sta)
- {
- struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-@@ -2507,15 +2529,17 @@ static void ath_tx_complete(struct ath_s
- tx_info->flags |= IEEE80211_TX_STAT_ACK;
- }
-
-- padpos = ieee80211_hdrlen(hdr->frame_control);
-- padsize = padpos & 3;
-- if (padsize && skb->len>padpos+padsize) {
-- /*
-- * Remove MAC header padding before giving the frame back to
-- * mac80211.
-- */
-- memmove(skb->data + padsize, skb->data, padpos);
-- skb_pull(skb, padsize);
-+ if (tx_info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) {
-+ padpos = ieee80211_hdrlen(hdr->frame_control);
-+ padsize = padpos & 3;
-+ if (padsize && skb->len>padpos+padsize) {
-+ /*
-+ * Remove MAC header padding before giving the frame back to
-+ * mac80211.
-+ */
-+ memmove(skb->data + padsize, skb->data, padpos);
-+ skb_pull(skb, padsize);
-+ }
- }
-
- spin_lock_irqsave(&sc->sc_pm_lock, flags);
-@@ -2530,12 +2554,14 @@ static void ath_tx_complete(struct ath_s
- }
- spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
-
-- __skb_queue_tail(&txq->complete_q, skb);
- ath_txq_skb_done(sc, txq, skb);
-+ tx_info->status.status_driver_data[0] = sta;
-+ __skb_queue_tail(&txq->complete_q, skb);
- }
-
- static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
- struct ath_txq *txq, struct list_head *bf_q,
-+ struct ieee80211_sta *sta,
- struct ath_tx_status *ts, int txok)
- {
- struct sk_buff *skb = bf->bf_mpdu;
-@@ -2563,7 +2589,7 @@ static void ath_tx_complete_buf(struct a
- complete(&sc->paprd_complete);
- } else {
- ath_debug_stat_tx(sc, bf, ts, txq, tx_flags);
-- ath_tx_complete(sc, skb, tx_flags, txq);
-+ ath_tx_complete(sc, skb, tx_flags, txq, sta);
- }
- skip_tx_complete:
- /* At this point, skb (bf->bf_mpdu) is consumed...make sure we don't
-@@ -2715,10 +2741,12 @@ void ath_tx_tasklet(struct ath_softc *sc
- u32 qcumask = ((1 << ATH9K_NUM_TX_QUEUES) - 1) & ah->intr_txqs;
- int i;
-
-+ rcu_read_lock();
- for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
- if (ATH_TXQ_SETUP(sc, i) && (qcumask & (1 << i)))
- ath_tx_processq(sc, &sc->tx.txq[i]);
- }
-+ rcu_read_unlock();
- }
-
- void ath_tx_edma_tasklet(struct ath_softc *sc)
-@@ -2732,6 +2760,7 @@ void ath_tx_edma_tasklet(struct ath_soft
- struct list_head *fifo_list;
- int status;
-
-+ rcu_read_lock();
- for (;;) {
- if (test_bit(ATH_OP_HW_RESET, &common->op_flags))
- break;
-@@ -2802,6 +2831,7 @@ void ath_tx_edma_tasklet(struct ath_soft
- ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
- ath_txq_unlock_complete(sc, txq);
- }
-+ rcu_read_unlock();
- }
-
- /*****************/
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 19:44:10 +0000