diff options
| author | Lorenzo Bianconi <lorenzo.bianconi@redhat.com> | 2018-07-31 11:09:07 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2018-08-02 21:47:56 +0300 |
| commit | d3c94b40460b8786d55380abf5dbd42fc3be7dfb (patch) | |
| tree | 3010f90b90539d955fb419065f4238d96c6c24b6 /drivers/net/wireless | |
| parent | 4681e0c79e4312c30a458ab87c8cea6b8f909b95 (diff) | |
| download | linux-d3c94b40460b8786d55380abf5dbd42fc3be7dfb.tar.xz | |
mt76x2: introduce mt76x2_mac_load_tx_status routine
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>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x2_mac.c | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c index e5e92f79f28a..bff0b7268467 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x2_mac.c @@ -532,11 +532,37 @@ out: 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) { |