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mt76x2: introduce mt76x2_mac_load_tx_status routine

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Add mt76x2_mac_load_tx_status routine since tx stats register map is
shared between usb and pci based devices but usb devices do not have a
tx stat irq line as pcie ones and it is necessary to load tx statistics
using a workqueue

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Lorenzo Bianconi 2018-07-31 10:09:07 +02:00 committed by Kalle Valo
parent 4681e0c79e
commit d3c94b4046
1 changed files with 30 additions and 17 deletions
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47
drivers/net/wireless/mediatek/mt76/mt76x2_mac.c
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@ -532,11 +532,37 @@ mt76x2_send_tx_status(struct mt76x2_dev *dev, struct mt76x2_tx_status *stat,
rcu_read_unlock();
}
static bool
mt76x2_mac_load_tx_status(struct mt76x2_dev *dev,
struct mt76x2_tx_status *stat)
{
u32 stat1, stat2;
stat2 = mt76_rr(dev, MT_TX_STAT_FIFO_EXT);
stat1 = mt76_rr(dev, MT_TX_STAT_FIFO);
stat->valid = !!(stat1 & MT_TX_STAT_FIFO_VALID);
if (!stat->valid)
return false;
stat->success = !!(stat1 & MT_TX_STAT_FIFO_SUCCESS);
stat->aggr = !!(stat1 & MT_TX_STAT_FIFO_AGGR);
stat->ack_req = !!(stat1 & MT_TX_STAT_FIFO_ACKREQ);
stat->wcid = FIELD_GET(MT_TX_STAT_FIFO_WCID, stat1);
stat->rate = FIELD_GET(MT_TX_STAT_FIFO_RATE, stat1);
stat->retry = FIELD_GET(MT_TX_STAT_FIFO_EXT_RETRY, stat2);
stat->pktid = FIELD_GET(MT_TX_STAT_FIFO_EXT_PKTID, stat2);
return true;
}
void mt76x2_mac_poll_tx_status(struct mt76x2_dev *dev, bool irq)
{
struct mt76x2_tx_status stat = {};
unsigned long flags;
u8 update = 1;
bool ret;
if (!test_bit(MT76_STATE_RUNNING, &dev->mt76.state))
return;
@ -544,26 +570,13 @@ void mt76x2_mac_poll_tx_status(struct mt76x2_dev *dev, bool irq)
trace_mac_txstat_poll(dev);
while (!irq || !kfifo_is_full(&dev->txstatus_fifo)) {
u32 stat1, stat2;
spin_lock_irqsave(&dev->irq_lock, flags);
stat2 = mt76_rr(dev, MT_TX_STAT_FIFO_EXT);
stat1 = mt76_rr(dev, MT_TX_STAT_FIFO);
if (!(stat1 & MT_TX_STAT_FIFO_VALID)) {
spin_unlock_irqrestore(&dev->irq_lock, flags);
break;
}
ret = mt76x2_mac_load_tx_status(dev, &stat);
spin_unlock_irqrestore(&dev->irq_lock, flags);
stat.valid = 1;
stat.success = !!(stat1 & MT_TX_STAT_FIFO_SUCCESS);
stat.aggr = !!(stat1 & MT_TX_STAT_FIFO_AGGR);
stat.ack_req = !!(stat1 & MT_TX_STAT_FIFO_ACKREQ);
stat.wcid = FIELD_GET(MT_TX_STAT_FIFO_WCID, stat1);
stat.rate = FIELD_GET(MT_TX_STAT_FIFO_RATE, stat1);
stat.retry = FIELD_GET(MT_TX_STAT_FIFO_EXT_RETRY, stat2);
stat.pktid = FIELD_GET(MT_TX_STAT_FIFO_EXT_PKTID, stat2);
if (!ret)
break;
trace_mac_txstat_fetch(dev, &stat);
if (!irq) {