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ath9k: add missing tx locking 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 38034
lede-17.01
Felix Fietkau 2013-09-18 13:24:55 +00:00
parent 808a1c7808
commit 50bc1a7593
1 changed files with 58 additions and 34 deletions
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92
package/kernel/mac80211/patches/300-pending_work.patch
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@ -931,7 +931,7 @@
}
info.buf_addr[0] = bf->bf_buf_addr;
@@ -1188,53 +1304,86 @@ static void ath_tx_fill_desc(struct ath_
@@ -1188,64 +1304,101 @@ static void ath_tx_fill_desc(struct ath_
}
}
@ -1015,11 +1015,7 @@
+ return false;
+
+ INIT_LIST_HEAD(&bf_q);
- 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);
+
+ bf = ath_tx_get_tid_subframe(sc, txq, tid, &tid_q);
+ if (!bf)
+ return false;
@ -1046,14 +1042,33 @@
+ 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 (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
- status != ATH_AGGR_BAW_CLOSED);
+ 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,
@@ -1258,6 +1407,9 @@ int ath_tx_aggr_start(struct ath_softc *
u16 tid, u16 *ssn)
{
struct ath_atx_tid *txtid;
+ struct ath_txq *txq;
struct ath_node *an;
u8 density;
an = (struct ath_node *)sta->drv_priv;
txtid = ATH_AN_2_TID(an, tid);
+ txq = txtid->ac->txq;
+
+ ath_txq_lock(sc, txq);
/* update ampdu factor/density, they may have changed. This may happen
* in HT IBSS when a beacon with HT-info is received after the station
@@ -1258,6 +1411,9 @@ int ath_tx_aggr_start(struct ath_softc *
an->mpdudensity = density;
}
@ -1063,7 +1078,16 @@
txtid->active = true;
txtid->paused = true;
*ssn = txtid->seq_start = txtid->seq_next;
@@ -1277,8 +1429,9 @@ void ath_tx_aggr_stop(struct ath_softc *
@@ -1266,6 +1422,8 @@ int ath_tx_aggr_start(struct ath_softc *
memset(txtid->tx_buf, 0, sizeof(txtid->tx_buf));
txtid->baw_head = txtid->baw_tail = 0;
+ ath_txq_unlock_complete(sc, txq);
+
return 0;
}
@@ -1277,8 +1435,9 @@ void ath_tx_aggr_stop(struct ath_softc *
ath_txq_lock(sc, txq);
txtid->active = false;
@ -1074,7 +1098,7 @@
ath_txq_unlock_complete(sc, txq);
}
@@ -1302,7 +1455,7 @@ void ath_tx_aggr_sleep(struct ieee80211_
@@ -1302,7 +1461,7 @@ void ath_tx_aggr_sleep(struct ieee80211_
ath_txq_lock(sc, txq);
@ -1083,7 +1107,7 @@
tid->sched = false;
list_del(&tid->list);
@@ -1334,7 +1487,7 @@ void ath_tx_aggr_wakeup(struct ath_softc
@@ -1334,7 +1493,7 @@ void ath_tx_aggr_wakeup(struct ath_softc
ath_txq_lock(sc, txq);
ac->clear_ps_filter = true;
@ -1092,7 +1116,7 @@
ath_tx_queue_tid(txq, tid);
ath_txq_schedule(sc, txq);
}
@@ -1359,7 +1512,7 @@ void ath_tx_aggr_resume(struct ath_softc
@@ -1359,7 +1518,7 @@ void ath_tx_aggr_resume(struct ath_softc
tid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor;
tid->paused = false;
@ -1101,7 +1125,7 @@
ath_tx_queue_tid(txq, tid);
ath_txq_schedule(sc, txq);
}
@@ -1379,6 +1532,7 @@ void ath9k_release_buffered_frames(struc
@@ -1379,6 +1538,7 @@ void ath9k_release_buffered_frames(struc
struct ieee80211_tx_info *info;
struct list_head bf_q;
struct ath_buf *bf_tail = NULL, *bf;
@ -1109,7 +1133,7 @@
int sent = 0;
int i;
@@ -1394,16 +1548,18 @@ void ath9k_release_buffered_frames(struc
@@ -1394,16 +1554,18 @@ void ath9k_release_buffered_frames(struc
continue;
ath_txq_lock(sc, tid->ac->txq);
@ -1133,7 +1157,7 @@
if (bf_tail)
bf_tail->bf_next = bf;
@@ -1412,7 +1568,7 @@ void ath9k_release_buffered_frames(struc
@@ -1412,7 +1574,7 @@ void ath9k_release_buffered_frames(struc
sent++;
TX_STAT_INC(txq->axq_qnum, a_queued_hw);
@ -1142,7 +1166,7 @@
ieee80211_sta_set_buffered(an->sta, i, false);
}
ath_txq_unlock_complete(sc, tid->ac->txq);
@@ -1571,7 +1727,7 @@ static void ath_drain_txq_list(struct at
@@ -1571,7 +1733,7 @@ static void ath_drain_txq_list(struct at
while (!list_empty(list)) {
bf = list_first_entry(list, struct ath_buf, list);
@ -1151,7 +1175,7 @@
list_del(&bf->list);
ath_tx_return_buffer(sc, bf);
@@ -1665,25 +1821,27 @@ void ath_tx_cleanupq(struct ath_softc *s
@@ -1665,25 +1827,27 @@ void ath_tx_cleanupq(struct ath_softc *s
*/
void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq)
{
@ -1184,7 +1208,7 @@
tid = list_first_entry(&ac->tid_q, struct ath_atx_tid,
list);
list_del(&tid->list);
@@ -1692,17 +1850,17 @@ void ath_txq_schedule(struct ath_softc *
@@ -1692,17 +1856,17 @@ void ath_txq_schedule(struct ath_softc *
if (tid->paused)
continue;
@ -1206,7 +1230,7 @@
break;
}
@@ -1711,9 +1869,17 @@ void ath_txq_schedule(struct ath_softc *
@@ -1711,9 +1875,17 @@ void ath_txq_schedule(struct ath_softc *
list_add_tail(&ac->list, &txq->axq_acq);
}
@ -1226,7 +1250,7 @@
}
rcu_read_unlock();
@@ -1787,62 +1953,13 @@ static void ath_tx_txqaddbuf(struct ath_
@@ -1787,62 +1959,13 @@ static void ath_tx_txqaddbuf(struct ath_
if (bf_is_ampdu_not_probing(bf))
txq->axq_ampdu_depth++;
@ -1292,7 +1316,7 @@
static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
struct ath_atx_tid *tid, struct sk_buff *skb)
{
@@ -1985,6 +2102,7 @@ static int ath_tx_prepare(struct ieee802
@@ -1985,6 +2108,7 @@ 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;
@ -1300,7 +1324,7 @@
struct ath_softc *sc = hw->priv;
int frmlen = skb->len + FCS_LEN;
int padpos, padsize;
@@ -1992,6 +2110,10 @@ static int ath_tx_prepare(struct ieee802
@@ -1992,6 +2116,10 @@ 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;
@ -1311,7 +1335,7 @@
if (info->control.hw_key)
frmlen += info->control.hw_key->icv_len;
@@ -2041,7 +2163,6 @@ int ath_tx_start(struct ieee80211_hw *hw
@@ -2041,7 +2169,6 @@ int ath_tx_start(struct ieee80211_hw *hw
struct ath_txq *txq = txctl->txq;
struct ath_atx_tid *tid = NULL;
struct ath_buf *bf;
@ -1319,7 +1343,7 @@
int q;
int ret;
@@ -2069,27 +2190,31 @@ int ath_tx_start(struct ieee80211_hw *hw
@@ -2069,27 +2196,31 @@ int ath_tx_start(struct ieee80211_hw *hw
ath_txq_unlock(sc, txq);
txq = sc->tx.uapsdq;
ath_txq_lock(sc, txq);
@ -1362,7 +1386,7 @@
if (txctl->paprd)
dev_kfree_skb_any(skb);
else
@@ -2142,7 +2267,7 @@ void ath_tx_cabq(struct ieee80211_hw *hw
@@ -2142,7 +2273,7 @@ void ath_tx_cabq(struct ieee80211_hw *hw
bf->bf_lastbf = bf;
ath_set_rates(vif, NULL, bf);
@ -1371,7 +1395,7 @@
duration += info.rates[0].PktDuration;
if (bf_tail)
bf_tail->bf_next = bf;
@@ -2189,7 +2314,7 @@ static void ath_tx_complete(struct ath_s
@@ -2189,7 +2320,7 @@ static void ath_tx_complete(struct ath_s
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_hdr * hdr = (struct ieee80211_hdr *)skb->data;
@ -1380,7 +1404,7 @@
unsigned long flags;
ath_dbg(common, XMIT, "TX complete: skb: %p\n", skb);
@@ -2225,21 +2350,7 @@ static void ath_tx_complete(struct ath_s
@@ -2225,21 +2356,7 @@ static void ath_tx_complete(struct ath_s
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
__skb_queue_tail(&txq->complete_q, skb);
@ -1403,7 +1427,7 @@
}
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
@@ -2360,8 +2471,7 @@ static void ath_tx_processq(struct ath_s
@@ -2360,8 +2477,7 @@ static void ath_tx_processq(struct ath_s
if (list_empty(&txq->axq_q)) {
txq->axq_link = NULL;
@ -1413,7 +1437,7 @@
break;
}
bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
@@ -2375,7 +2485,7 @@ static void ath_tx_processq(struct ath_s
@@ -2375,7 +2491,7 @@ static void ath_tx_processq(struct ath_s
* it with the STALE flag.
*/
bf_held = NULL;
@ -1422,7 +1446,7 @@
bf_held = bf;
if (list_is_last(&bf_held->list, &txq->axq_q))
break;
@@ -2399,7 +2509,7 @@ static void ath_tx_processq(struct ath_s
@@ -2399,7 +2515,7 @@ static void ath_tx_processq(struct ath_s
* however leave the last descriptor back as the holding
* descriptor for hw.
*/
@ -1431,7 +1455,7 @@
INIT_LIST_HEAD(&bf_head);
if (!list_is_singular(&lastbf->list))
list_cut_position(&bf_head,
@@ -2470,7 +2580,7 @@ void ath_tx_edma_tasklet(struct ath_soft
@@ -2470,7 +2586,7 @@ void ath_tx_edma_tasklet(struct ath_soft
}
bf = list_first_entry(fifo_list, struct ath_buf, list);
@ -1440,7 +1464,7 @@
list_del(&bf->list);
ath_tx_return_buffer(sc, bf);
bf = list_first_entry(fifo_list, struct ath_buf, list);
@@ -2492,7 +2602,7 @@ void ath_tx_edma_tasklet(struct ath_soft
@@ -2492,7 +2608,7 @@ void ath_tx_edma_tasklet(struct ath_soft
ath_tx_txqaddbuf(sc, txq, &bf_q, true);
}
} else {
@ -1449,7 +1473,7 @@
if (bf != lastbf)
list_cut_position(&bf_head, fifo_list,
lastbf->list.prev);
@@ -2583,6 +2693,7 @@ void ath_tx_node_init(struct ath_softc *
@@ -2583,6 +2699,7 @@ void ath_tx_node_init(struct ath_softc *
tid->paused = false;
tid->active = false;
__skb_queue_head_init(&tid->buf_q);
@ -1457,7 +1481,7 @@
acno = TID_TO_WME_AC(tidno);
tid->ac = &an->ac[acno];
}
@@ -2590,6 +2701,7 @@ void ath_tx_node_init(struct ath_softc *
@@ -2590,6 +2707,7 @@ void ath_tx_node_init(struct ath_softc *
for (acno = 0, ac = &an->ac[acno];
acno < IEEE80211_NUM_ACS; acno++, ac++) {
ac->sched = false;