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mt76: check aggregation sequence number for frames sent via drv_tx

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ps-poll response frames can be sent via drv_tx. Store the frame sequence number
for such frames, in case a BlockAckReq needs to be sent

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2018-09-29 13:15:32 +02:00
parent 36d910960f
commit 49f45fa13d
1 changed files with 25 additions and 11 deletions
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36
drivers/net/wireless/mediatek/mt76/tx.c
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@ -91,11 +91,23 @@ mt76_txq_get_qid(struct ieee80211_txq *txq)
return txq->ac;
}
static void
mt76_check_agg_ssn(struct mt76_txq *mtxq, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
if (!ieee80211_is_data_qos(hdr->frame_control))
return;
mtxq->agg_ssn = le16_to_cpu(hdr->seq_ctrl) + 0x10;
}
void
mt76_tx(struct mt76_dev *dev, struct ieee80211_sta *sta,
struct mt76_wcid *wcid, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct mt76_queue *q;
int qid = skb_get_queue_mapping(skb);
@ -108,6 +120,19 @@ mt76_tx(struct mt76_dev *dev, struct ieee80211_sta *sta,
ieee80211_get_tx_rates(info->control.vif, sta, skb,
info->control.rates, 1);
if (sta && ieee80211_is_data_qos(hdr->frame_control)) {
struct ieee80211_txq *txq;
struct mt76_txq *mtxq;
u8 tid;
tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
txq = sta->txq[tid];
mtxq = (struct mt76_txq *) txq->drv_priv;
if (mtxq->aggr)
mt76_check_agg_ssn(mtxq, skb);
}
q = &dev->q_tx[qid];
spin_lock_bh(&q->lock);
@ -143,17 +168,6 @@ mt76_txq_dequeue(struct mt76_dev *dev, struct mt76_txq *mtxq, bool ps)
return skb;
}
static void
mt76_check_agg_ssn(struct mt76_txq *mtxq, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
if (!ieee80211_is_data_qos(hdr->frame_control))
return;
mtxq->agg_ssn = le16_to_cpu(hdr->seq_ctrl) + 0x10;
}
static void
mt76_queue_ps_skb(struct mt76_dev *dev, struct ieee80211_sta *sta,
struct sk_buff *skb, bool last)