diff options
| author | Felix Fietkau <nbd@nbd.name> | 2018-10-25 16:11:34 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2018-11-30 12:21:42 +0100 |
| commit | 88046b2c9f6d8b91cc8b3ada547f49f6dd45469b (patch) | |
| tree | 9d9cb060a3b528b42fc4fa1e0b5700ba2e4513da /drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c | |
| parent | 59b55d066ff625f8613c563bd2ed705bce412fa8 (diff) | |
| download | linux-88046b2c9f6d8b91cc8b3ada547f49f6dd45469b.tar.bz2 | |
mt76: add support for reporting tx status with skb
MT76x2/MT76x0 has somewhat unreliable tx status reporting, and for that
reason the driver currently does not report per-skb tx ack status at all.
This breaks things like client idle polling, which relies on the tx ack
status of a transmitted nullfunc frame.
This patch adds code to report skb-attached tx status if requested by
mac80211 or the rate control module. Since tx status is polled from a
simple FIFO register, the code needs to account for the possibility of
tx status events getting lost.
The code keeps a list of skbs for which tx status is required and passes
them to mac80211 once tx status has been filled in and the DMA queue is
done with it.
If a tx status event is not received after one second, the status rates
are cleared, and a succesful ACK is indicated to avoid spurious disassoc
during assoc or client polling.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c b/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c index c008e08602f3..4598cb2cc3ff 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c @@ -140,21 +140,6 @@ void mt76x02_tx_set_txpwr_auto(struct mt76x02_dev *dev, s8 txpwr) } EXPORT_SYMBOL_GPL(mt76x02_tx_set_txpwr_auto); -void mt76x02_tx_complete(struct mt76_dev *dev, struct sk_buff *skb) -{ - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - - if (info->flags & IEEE80211_TX_CTL_AMPDU) { - ieee80211_free_txskb(dev->hw, skb); - } else { - ieee80211_tx_info_clear_status(info); - info->status.rates[0].idx = -1; - info->flags |= IEEE80211_TX_STAT_ACK; - ieee80211_tx_status(dev->hw, skb); - } -} -EXPORT_SYMBOL_GPL(mt76x02_tx_complete); - bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); @@ -169,14 +154,15 @@ bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update) } EXPORT_SYMBOL_GPL(mt76x02_tx_status_data); -int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi, +int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, struct sk_buff *skb, struct mt76_queue *q, struct mt76_wcid *wcid, struct ieee80211_sta *sta, u32 *tx_info) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct mt76x02_txwi *txwi = txwi_ptr; int qsel = MT_QSEL_EDCA; + int pid; int ret; if (q == &dev->mt76.q_tx[MT_TXQ_PSD] && wcid && wcid->idx < 128) @@ -184,11 +170,14 @@ int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi, mt76x02_mac_write_txwi(dev, txwi, skb, wcid, sta, skb->len); + pid = mt76_tx_status_skb_add(mdev, wcid, skb); + txwi->pktid = pid; + ret = mt76x02_insert_hdr_pad(skb); if (ret < 0) return ret; - if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) + if (pid && pid != MT_PACKET_ID_NO_ACK) qsel = MT_QSEL_MGMT; *tx_info = FIELD_PREP(MT_TXD_INFO_QSEL, qsel) | |