mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-22 23:12:32 +00:00
132 lines
3.8 KiB
Diff
132 lines
3.8 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/xmit.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
|
|
@@ -61,6 +61,8 @@ static int ath_tx_num_badfrms(struct ath
|
|
struct ath_tx_status *ts, int txok);
|
|
static void ath_tx_rc_status(struct ath_buf *bf, struct ath_tx_status *ts,
|
|
int nbad, int txok, bool update_rc);
|
|
+static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
|
|
+ int seqno);
|
|
|
|
enum {
|
|
MCS_HT20,
|
|
@@ -144,18 +146,23 @@ static void ath_tx_flush_tid(struct ath_
|
|
struct ath_txq *txq = &sc->tx.txq[tid->ac->qnum];
|
|
struct ath_buf *bf;
|
|
struct list_head bf_head;
|
|
- INIT_LIST_HEAD(&bf_head);
|
|
+ struct ath_tx_status ts;
|
|
|
|
- WARN_ON(!tid->paused);
|
|
+ INIT_LIST_HEAD(&bf_head);
|
|
|
|
+ memset(&ts, 0, sizeof(ts));
|
|
spin_lock_bh(&txq->axq_lock);
|
|
- tid->paused = false;
|
|
|
|
while (!list_empty(&tid->buf_q)) {
|
|
bf = list_first_entry(&tid->buf_q, struct ath_buf, list);
|
|
- BUG_ON(bf_isretried(bf));
|
|
list_move_tail(&bf->list, &bf_head);
|
|
- ath_tx_send_ht_normal(sc, txq, tid, &bf_head);
|
|
+
|
|
+ if (bf_isretried(bf)) {
|
|
+ ath_tx_update_baw(sc, tid, bf->bf_seqno);
|
|
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 0);
|
|
+ } else {
|
|
+ ath_tx_send_ht_normal(sc, txq, tid, &bf_head);
|
|
+ }
|
|
}
|
|
|
|
spin_unlock_bh(&txq->axq_lock);
|
|
@@ -430,7 +437,7 @@ static void ath_tx_complete_aggr(struct
|
|
list_move_tail(&bf->list, &bf_head);
|
|
}
|
|
|
|
- if (!txpending) {
|
|
+ if (!txpending || (tid->state & AGGR_CLEANUP)) {
|
|
/*
|
|
* complete the acked-ones/xretried ones; update
|
|
* block-ack window
|
|
@@ -451,6 +458,7 @@ static void ath_tx_complete_aggr(struct
|
|
!txfail, sendbar);
|
|
} else {
|
|
/* retry the un-acked ones */
|
|
+
|
|
if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)) {
|
|
if (bf->bf_next == NULL && bf_last->bf_stale) {
|
|
struct ath_buf *tbf;
|
|
@@ -509,15 +517,12 @@ static void ath_tx_complete_aggr(struct
|
|
}
|
|
|
|
if (tid->state & AGGR_CLEANUP) {
|
|
+ ath_tx_flush_tid(sc, tid);
|
|
+
|
|
if (tid->baw_head == tid->baw_tail) {
|
|
tid->state &= ~AGGR_ADDBA_COMPLETE;
|
|
tid->state &= ~AGGR_CLEANUP;
|
|
-
|
|
- /* send buffered frames as singles */
|
|
- ath_tx_flush_tid(sc, tid);
|
|
}
|
|
- rcu_read_unlock();
|
|
- return;
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
@@ -808,12 +813,6 @@ 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 = &sc->tx.txq[txtid->ac->qnum];
|
|
- struct ath_tx_status ts;
|
|
- struct ath_buf *bf;
|
|
- struct list_head bf_head;
|
|
-
|
|
- memset(&ts, 0, sizeof(ts));
|
|
- INIT_LIST_HEAD(&bf_head);
|
|
|
|
if (txtid->state & AGGR_CLEANUP)
|
|
return;
|
|
@@ -823,31 +822,22 @@ void ath_tx_aggr_stop(struct ath_softc *
|
|
return;
|
|
}
|
|
|
|
- /* drop all software retried frames and mark this TID */
|
|
spin_lock_bh(&txq->axq_lock);
|
|
txtid->paused = true;
|
|
- while (!list_empty(&txtid->buf_q)) {
|
|
- bf = list_first_entry(&txtid->buf_q, struct ath_buf, list);
|
|
- if (!bf_isretried(bf)) {
|
|
- /*
|
|
- * NB: it's based on the assumption that
|
|
- * software retried frame will always stay
|
|
- * at the head of software queue.
|
|
- */
|
|
- break;
|
|
- }
|
|
- list_move_tail(&bf->list, &bf_head);
|
|
- ath_tx_update_baw(sc, txtid, bf->bf_seqno);
|
|
- ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 0);
|
|
- }
|
|
- spin_unlock_bh(&txq->axq_lock);
|
|
|
|
- if (txtid->baw_head != txtid->baw_tail) {
|
|
+ /*
|
|
+ * If frames are still being transmitted for this TID, they will be
|
|
+ * cleaned up during tx completion. To prevent race conditions, this
|
|
+ * TID can only be reused after all in-progress subframes have been
|
|
+ * completed.
|
|
+ */
|
|
+ if (txtid->baw_head != txtid->baw_tail)
|
|
txtid->state |= AGGR_CLEANUP;
|
|
- } else {
|
|
+ else
|
|
txtid->state &= ~AGGR_ADDBA_COMPLETE;
|
|
- ath_tx_flush_tid(sc, txtid);
|
|
- }
|
|
+ spin_unlock_bh(&txq->axq_lock);
|
|
+
|
|
+ ath_tx_flush_tid(sc, txtid);
|
|
}
|
|
|
|
void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid)
|