diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/dma.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/dma.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/dma.c b/drivers/net/wireless/ath/ath5k/dma.c index e39c953..bfdfcff 100644 --- a/drivers/net/wireless/ath/ath5k/dma.c +++ b/drivers/net/wireless/ath/ath5k/dma.c @@ -216,6 +216,14 @@ int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue) ath5k_hw_reg_write(ah, tx_queue, AR5K_CR); ath5k_hw_reg_read(ah, AR5K_CR); } else { + + /* + * Enable DCU early termination to quickly + * flush any pending frames from QCU + */ + AR5K_REG_ENABLE_BITS(ah, AR5K_QUEUE_MISC(queue), + AR5K_QCU_MISC_DCU_EARLY); + /* * Schedule TX disable and wait until queue is empty */ @@ -285,6 +293,12 @@ int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue) queue); } + /* + * Disable DCU early termination + */ + AR5K_REG_DISABLE_BITS(ah, AR5K_QUEUE_MISC(queue), + AR5K_QCU_MISC_DCU_EARLY); + /* Clear register */ ath5k_hw_reg_write(ah, 0, AR5K_QCU_TXD); if (pending) { |