| Message ID | 20211213080908.80723-1-jhp@endlessos.org |
|---|---|
| State | New |
| Headers | show |
| Series | rtw88: pci: turn off PCI ASPM during NAPI polling | expand |
diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c index a7a6ebfaa203..a6fdddecd37d 100644 --- a/drivers/net/wireless/realtek/rtw88/pci.c +++ b/drivers/net/wireless/realtek/rtw88/pci.c @@ -1658,6 +1658,7 @@ static int rtw_pci_napi_poll(struct napi_struct *napi, int budget) priv); int work_done = 0; + rtw_pci_link_ps(rtwdev, false); while (work_done < budget) { u32 work_done_once; @@ -1681,6 +1682,7 @@ static int rtw_pci_napi_poll(struct napi_struct *napi, int budget) if (rtw_pci_get_hw_rx_ring_nr(rtwdev, rtwpci)) napi_schedule(napi); } + rtw_pci_link_ps(rtwdev, true); return work_done; }
The system on the machines equipped with RTL8821CE freezes randomly until the PCI ASPM is disabled during NAPI poll function. Link: https://www.spinics.net/lists/linux-wireless/msg218387.html Fixes: 9e2fd29864c5 ("rtw88: add napi support") Signed-off-by: Jian-Hong Pan <jhp@endlessos.org> --- drivers/net/wireless/realtek/rtw88/pci.c | 2 ++ 1 file changed, 2 insertions(+)