diff options
author | Lorenzo Bianconi <lorenzo@kernel.org> | 2020-07-03 10:15:54 +0200 |
---|---|---|
committer | Felix Fietkau <nbd@nbd.name> | 2020-07-21 19:01:17 +0200 |
commit | 2b8cdfb28d3402b25fab47ffe70b6d858d26a2c1 (patch) | |
tree | b907fb3ea3fe801a6bb082532ef2a0ce323b79fa /drivers/net/wireless/mediatek | |
parent | 5cf8f7794d32e3ea7af6f04139a77157c536d4b5 (diff) |
mt76: mt7615: wake device before pushing frames in mt7615_tx
Queue frames pushed by mac80211 running mt7615_tx if the device is
low-power state. Run wake workqueue in order to swicth to full-power
before transmitting pending frames
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek')
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/init.c | 1 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 25 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/main.c | 56 | ||||
-rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h | 6 |
4 files changed, 81 insertions, 7 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c index fdc40a1c84c4..02a82cd848c4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -441,6 +441,7 @@ void mt7615_init_device(struct mt7615_dev *dev) INIT_DELAYED_WORK(&dev->pm.ps_work, mt7615_pm_power_save_work); INIT_WORK(&dev->pm.wake_work, mt7615_pm_wake_work); init_completion(&dev->pm.wake_cmpl); + spin_lock_init(&dev->pm.txq_lock); INIT_DELAYED_WORK(&dev->phy.mac_work, mt7615_mac_work); INIT_DELAYED_WORK(&dev->phy.scan_work, mt7615_scan_work); skb_queue_head_init(&dev->phy.scan_event_list); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c index f340e74c1a71..09885ab30092 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c @@ -1836,6 +1836,7 @@ void mt7615_pm_wake_work(struct work_struct *work) { struct mt7615_dev *dev; struct mt76_phy *mphy; + int i; dev = (struct mt7615_dev *)container_of(work, struct mt7615_dev, pm.wake_work); @@ -1846,8 +1847,28 @@ void mt7615_pm_wake_work(struct work_struct *work) goto out; } + spin_lock_bh(&dev->pm.txq_lock); + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + struct mt7615_sta *msta = dev->pm.tx_q[i].msta; + struct mt76_wcid *wcid = msta ? &msta->wcid : NULL; + struct ieee80211_sta *sta = NULL; + + if (!dev->pm.tx_q[i].skb) + continue; + + if (msta && wcid->sta) + sta = container_of((void *)msta, struct ieee80211_sta, + drv_priv); + + mt76_tx(mphy, sta, wcid, dev->pm.tx_q[i].skb); + dev->pm.tx_q[i].skb = NULL; + } + spin_unlock_bh(&dev->pm.txq_lock); + tasklet_schedule(&dev->mt76.tx_tasklet); + out: + ieee80211_wake_queues(mphy->hw); complete_all(&dev->pm.wake_cmpl); } @@ -1871,8 +1892,10 @@ int mt7615_pm_wake(struct mt7615_dev *dev) if (queue_work(dev->mt76.wq, &dev->pm.wake_work)) reinit_completion(&dev->pm.wake_cmpl); - if (!wait_for_completion_timeout(&dev->pm.wake_cmpl, 3 * HZ)) + if (!wait_for_completion_timeout(&dev->pm.wake_cmpl, 3 * HZ)) { + ieee80211_wake_queues(mphy->hw); return -ETIMEDOUT; + } return 0; } diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c index 3ff387f31659..57d5e3aa9439 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c @@ -24,6 +24,22 @@ static bool mt7615_dev_running(struct mt7615_dev *dev) return phy && test_bit(MT76_STATE_RUNNING, &phy->mt76->state); } +static void mt7615_free_pending_tx_skbs(struct mt7615_dev *dev, + struct mt7615_sta *msta) +{ + int i; + + spin_lock_bh(&dev->pm.txq_lock); + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + if (msta && dev->pm.tx_q[i].msta != msta) + continue; + + dev_kfree_skb(dev->pm.tx_q[i].skb); + dev->pm.tx_q[i].skb = NULL; + } + spin_unlock_bh(&dev->pm.txq_lock); +} + static int mt7615_start(struct ieee80211_hw *hw) { struct mt7615_dev *dev = mt7615_hw_dev(hw); @@ -77,6 +93,8 @@ static void mt7615_stop(struct ieee80211_hw *hw) cancel_delayed_work_sync(&dev->pm.ps_work); cancel_work_sync(&dev->pm.wake_work); + mt7615_free_pending_tx_skbs(dev, NULL); + mt7615_mutex_acquire(dev); mt76_testmode_reset(&dev->mt76, true); @@ -214,6 +232,8 @@ static void mt7615_remove_interface(struct ieee80211_hw *hw, if (vif == phy->monitor_vif) phy->monitor_vif = NULL; + mt7615_free_pending_tx_skbs(dev, msta); + mt7615_mcu_add_dev_info(dev, vif, false); rcu_assign_pointer(dev->mt76.wcid[idx], NULL); @@ -595,6 +615,8 @@ void mt7615_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif, struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); struct mt7615_sta *msta = (struct mt7615_sta *)sta->drv_priv; + mt7615_free_pending_tx_skbs(dev, msta); + mt7615_mcu_sta_add(dev, vif, sta, false); mt7615_mac_wtbl_update(dev, msta->wcid.idx, MT_WTBL_UPDATE_ADM_COUNT_CLEAR); @@ -665,22 +687,43 @@ static void mt7615_tx(struct ieee80211_hw *hw, struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_vif *vif = info->control.vif; struct mt76_wcid *wcid = &dev->mt76.global_wcid; + struct mt7615_sta *msta = NULL; + int qid; if (control->sta) { - struct mt7615_sta *sta; - - sta = (struct mt7615_sta *)control->sta->drv_priv; - wcid = &sta->wcid; + msta = (struct mt7615_sta *)control->sta->drv_priv; + wcid = &msta->wcid; } if (vif && !control->sta) { struct mt7615_vif *mvif; mvif = (struct mt7615_vif *)vif->drv_priv; - wcid = &mvif->sta.wcid; + msta = &mvif->sta; + wcid = &msta->wcid; + } + + if (!test_bit(MT76_STATE_PM, &mphy->state)) { + mt76_tx(mphy, control->sta, wcid, skb); + return; + } + + qid = skb_get_queue_mapping(skb); + if (qid >= MT_TXQ_PSD) { + qid = IEEE80211_AC_BE; + skb_set_queue_mapping(skb, qid); } - mt76_tx(mphy, control->sta, wcid, skb); + spin_lock_bh(&dev->pm.txq_lock); + if (!dev->pm.tx_q[qid].skb) { + ieee80211_stop_queues(hw); + dev->pm.tx_q[qid].msta = msta; + dev->pm.tx_q[qid].skb = skb; + queue_work(dev->mt76.wq, &dev->pm.wake_work); + } else { + dev_kfree_skb(skb); + } + spin_unlock_bh(&dev->pm.txq_lock); } static int mt7615_set_rts_threshold(struct ieee80211_hw *hw, u32 val) @@ -1059,6 +1102,7 @@ static int mt7615_suspend(struct ieee80211_hw *hw, int err = 0; cancel_delayed_work_sync(&dev->pm.ps_work); + mt7615_free_pending_tx_skbs(dev, NULL); mt7615_mutex_acquire(dev); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h index 3c5cd7f0ea1e..cc1f76adc975 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h @@ -302,6 +302,12 @@ struct mt7615_dev { struct { bool enable; + spinlock_t txq_lock; + struct { + struct mt7615_sta *msta; + struct sk_buff *skb; + } tx_q[IEEE80211_NUM_ACS]; + struct work_struct wake_work; struct completion wake_cmpl; |