diff options
| author | Chin-Yen Lee <timlee@realtek.com> | 2019-12-19 11:58:11 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-01-26 18:37:00 +0300 |
| commit | fd30e891e0bc68735b52d480d078959e5fb30e70 (patch) | |
| tree | 3907a433dbbb280f06c946820508809c0cea59e3 /drivers/net | |
| parent | 25cab7e71da32d46651f5fc9373eef9b79938629 (diff) | |
| download | linux-fd30e891e0bc68735b52d480d078959e5fb30e70.tar.xz | |
rtw88: pci: reset dma when reset pci trx ring
When PCI trx rings are reset, the DMA engine should also be reset.
Otherswise, the rx_tag of rx flow is not synchronous to hw.
Remove DMA reset when rtw_pci_start() as we added it in
rtw_pci_setup().
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Reviewed-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/pci.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c index 068f1bec88e6..c394df494c95 100644 --- a/drivers/net/wireless/realtek/rtw88/pci.c +++ b/drivers/net/wireless/realtek/rtw88/pci.c @@ -486,13 +486,6 @@ static void rtw_pci_disable_interrupt(struct rtw_dev *rtwdev, rtwpci->irq_enabled = false; } -static int rtw_pci_setup(struct rtw_dev *rtwdev) -{ - rtw_pci_reset_trx_ring(rtwdev); - - return 0; -} - static void rtw_pci_dma_reset(struct rtw_dev *rtwdev, struct rtw_pci *rtwpci) { /* reset dma and rx tag */ @@ -501,6 +494,16 @@ static void rtw_pci_dma_reset(struct rtw_dev *rtwdev, struct rtw_pci *rtwpci) rtwpci->rx_tag = 0; } +static int rtw_pci_setup(struct rtw_dev *rtwdev) +{ + struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; + + rtw_pci_reset_trx_ring(rtwdev); + rtw_pci_dma_reset(rtwdev, rtwpci); + + return 0; +} + static void rtw_pci_dma_release(struct rtw_dev *rtwdev, struct rtw_pci *rtwpci) { struct rtw_pci_tx_ring *tx_ring; @@ -518,8 +521,6 @@ static int rtw_pci_start(struct rtw_dev *rtwdev) struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; unsigned long flags; - rtw_pci_dma_reset(rtwdev, rtwpci); - spin_lock_irqsave(&rtwpci->irq_lock, flags); rtw_pci_enable_interrupt(rtwdev, rtwpci); spin_unlock_irqrestore(&rtwpci->irq_lock, flags); |