Use ieee80211_tx_status_ext instead of ieee80211_free_skb and
ieee80211_tx_status. This makes it compatible with 802.3 encap offload
and improves performance by removing a redundant sta lookup
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt76.h | 9 ++-
drivers/net/wireless/mediatek/mt76/tx.c | 73 +++++++++++++++--------
2 files changed, 55 insertions(+), 27 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h
index 36ede65919f8..d3859eda2a4f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76.h
+++ b/drivers/net/wireless/mediatek/mt76/mt76.h
@@ -1056,7 +1056,14 @@ struct sk_buff *mt76_tx_status_skb_get(struct mt76_dev *dev,
struct sk_buff_head *list);
void mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb,
struct sk_buff_head *list);
-void mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid, struct sk_buff *skb);
+void __mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid, struct sk_buff *skb,
+ struct list_head *free_list);
+static inline void
+mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid, struct sk_buff *skb)
+{
+ __mt76_tx_complete_skb(dev, wcid, skb, NULL);
+}
+
void mt76_tx_status_check(struct mt76_dev *dev, struct mt76_wcid *wcid,
bool flush);
int mt76_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c
index 53ea8de82df0..70a830132a37 100644
--- a/drivers/net/wireless/mediatek/mt76/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/tx.c
@@ -54,11 +54,23 @@ mt76_tx_status_unlock(struct mt76_dev *dev, struct sk_buff_head *list)
spin_unlock_bh(&dev->status_list.lock);
+ rcu_read_lock();
while ((skb = __skb_dequeue(list)) != NULL) {
+ struct ieee80211_tx_status status = {
+ .skb = skb,
+ .info = IEEE80211_SKB_CB(skb),
+ };
+ struct mt76_tx_cb *cb = mt76_tx_skb_cb(skb);
+ struct mt76_wcid *wcid;
+
+ wcid = rcu_dereference(dev->wcid[cb->wcid]);
+ if (wcid)
+ status.sta = wcid_to_sta(wcid);
+
hw = mt76_tx_status_get_hw(dev, skb);
- ieee80211_tx_status(hw, skb);
+ ieee80211_tx_status_ext(hw, &status);
}
-
+ rcu_read_unlock();
}
EXPORT_SYMBOL_GPL(mt76_tx_status_unlock);
@@ -80,7 +92,7 @@ __mt76_tx_status_skb_done(struct mt76_dev *dev, struct sk_buff *skb, u8 flags,
/* Tx status can be unreliable. if it fails, mark the frame as ACKed */
if (flags & MT_TX_CB_TXS_FAILED) {
- ieee80211_tx_info_clear_status(info);
+ info->status.rates[0].count = 0;
info->status.rates[0].idx = -1;
info->flags |= IEEE80211_TX_STAT_ACK;
}
@@ -173,36 +185,37 @@ mt76_tx_status_check(struct mt76_dev *dev, struct mt76_wcid *wcid, bool flush)
EXPORT_SYMBOL_GPL(mt76_tx_status_check);
static void
-mt76_tx_check_non_aql(struct mt76_dev *dev, u16 wcid_idx, struct sk_buff *skb)
+mt76_tx_check_non_aql(struct mt76_dev *dev, struct mt76_wcid *wcid,
+ struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct mt76_wcid *wcid;
int pending;
- if (info->tx_time_est)
+ if (!wcid || info->tx_time_est)
return;
- if (wcid_idx >= ARRAY_SIZE(dev->wcid))
- return;
-
- rcu_read_lock();
-
- wcid = rcu_dereference(dev->wcid[wcid_idx]);
- if (wcid) {
- pending = atomic_dec_return(&wcid->non_aql_packets);
- if (pending < 0)
- atomic_cmpxchg(&wcid->non_aql_packets, pending, 0);
- }
-
- rcu_read_unlock();
+ pending = atomic_dec_return(&wcid->non_aql_packets);
+ if (pending < 0)
+ atomic_cmpxchg(&wcid->non_aql_packets, pending, 0);
}
-void mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid_idx, struct sk_buff *skb)
+void __mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid_idx, struct sk_buff *skb,
+ struct list_head *free_list)
{
+ struct ieee80211_tx_status status = {
+ .skb = skb,
+ .free_list = free_list,
+ };
+ struct mt76_wcid *wcid = NULL;
struct ieee80211_hw *hw;
struct sk_buff_head list;
- mt76_tx_check_non_aql(dev, wcid_idx, skb);
+ rcu_read_lock();
+
+ if (wcid_idx < ARRAY_SIZE(dev->wcid))
+ wcid = rcu_dereference(dev->wcid[wcid_idx]);
+
+ mt76_tx_check_non_aql(dev, wcid, skb);
#ifdef CONFIG_NL80211_TESTMODE
if (mt76_is_testmode_skb(dev, skb, &hw)) {
@@ -214,21 +227,25 @@ void mt76_tx_complete_skb(struct mt76_dev *dev, u16 wcid_idx, struct sk_buff *sk
wake_up(&dev->tx_wait);
dev_kfree_skb_any(skb);
- return;
+ goto out;
}
#endif
if (!skb->prev) {
hw = mt76_tx_status_get_hw(dev, skb);
- ieee80211_free_txskb(hw, skb);
- return;
+ status.sta = wcid_to_sta(wcid);
+ ieee80211_tx_status_ext(hw, &status);
+ goto out;
}
mt76_tx_status_lock(dev, &list);
__mt76_tx_status_skb_done(dev, skb, MT_TX_CB_DMA_DONE, &list);
mt76_tx_status_unlock(dev, &list);
+
+out:
+ rcu_read_unlock();
}
-EXPORT_SYMBOL_GPL(mt76_tx_complete_skb);
+EXPORT_SYMBOL_GPL(__mt76_tx_complete_skb);
static int
__mt76_tx_queue_skb(struct mt76_phy *phy, int qid, struct sk_buff *skb,
@@ -244,11 +261,15 @@ __mt76_tx_queue_skb(struct mt76_phy *phy, int qid, struct sk_buff *skb,
non_aql = !info->tx_time_est;
idx = dev->queue_ops->tx_queue_skb(dev, q, skb, wcid, sta);
- if (idx < 0 || !sta || !non_aql)
+ if (idx < 0 || !sta)
return idx;
wcid = (struct mt76_wcid *)sta->drv_priv;
q->entry[idx].wcid = wcid->idx;
+
+ if (!non_aql)
+ return idx;
+
pending = atomic_inc_return(&wcid->non_aql_packets);
if (stop && pending >= MT_MAX_NON_AQL_PKT)
*stop = true;
--
2.30.1
