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/mac80211.c | |
parent | 59b55d066ff625f8613c563bd2ed705bce412fa8 (diff) |
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/mac80211.c')
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mac80211.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index 2a699e8b79bf..85e05a825b5d 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -285,6 +285,7 @@ mt76_alloc_device(unsigned int size, const struct ieee80211_ops *ops) spin_lock_init(&dev->cc_lock); mutex_init(&dev->mutex); init_waitqueue_head(&dev->tx_wait); + skb_queue_head_init(&dev->status_list); return dev; } @@ -326,6 +327,7 @@ int mt76_register_device(struct mt76_dev *dev, bool vht, ieee80211_hw_set(hw, TX_FRAG_LIST); ieee80211_hw_set(hw, MFP_CAPABLE); ieee80211_hw_set(hw, AP_LINK_PS); + ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); wiphy->flags |= WIPHY_FLAG_IBSS_RSN; @@ -357,6 +359,7 @@ void mt76_unregister_device(struct mt76_dev *dev) { struct ieee80211_hw *hw = dev->hw; + mt76_tx_status_flush(dev, NULL); ieee80211_unregister_hw(hw); mt76_tx_free(dev); } |