| Message ID | 20231110103227.58008-2-jhp@endlessos.org (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Kalle Valo |
| Headers | show |
| Series | rtlwifi: rtl8723be: Disable ASPM if RTL8723BE connects to some Intel PCI bridge | expand |
On 11/10/23 04:32, Jian-Hong Pan wrote: > Disable rtl8723be's ASPM if the Realtek RTL8723BE PCIe Wireless adapter > connects to some Intel PCI bridges, such as Skylake and Kabylake. > Otherwise, the PCI AER flood hangs system: > > pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID) > pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 > pcieport 0000:00:1c.5: [ 0] RxErr (First) > pcieport 0000:00:1c.5: AER: Corrected error received: 0000:00:1c.5 > pcieport 0000:00:1c.5: AER: can't find device of ID00e5 > pcieport 0000:00:1c.5: AER: Corrected error received: 0000:00:1c.5 > pcieport 0000:00:1c.5: AER: can't find device of ID00e5 > pcieport 0000:00:1c.5: AER: Multiple Corrected error received: 0000:00:1c.5 > pcieport 0000:00:1c.5: AER: can't find device of ID00e5 > > Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=218127 > Signed-off-by: Jian-Hong Pan <jhp@endlessos.org> > --- > .../wireless/realtek/rtlwifi/rtl8723be/sw.c | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c > index 43b611d5288d..720c79e0781a 100644 > --- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c > +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c > @@ -25,10 +25,29 @@ static void rtl8723be_init_aspm_vars(struct ieee80211_hw *hw) > { > struct rtl_priv *rtlpriv = rtl_priv(hw); > struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); > + struct pci_dev *bridge_pdev; > > /*close ASPM for AMD defaultly */ > rtlpci->const_amdpci_aspm = 0; > > + /* Disable ASPM if RTL8723BE connects to some Intel PCI bridges, such as > + * Skylake and Kabylake. Otherwise, the PCI AER flood hangs system. > + */ > + bridge_pdev = rtlpci->pdev->bus->self; > + if (bridge_pdev->vendor == PCI_VENDOR_ID_INTEL) { > + switch(bridge_pdev->device) { > + case 0x9d15: > + /* PCI bridges on Skylake */ > + case 0xa110 ... 0xa11f: > + case 0xa167 ... 0xa16a: > + /* PCI bridges on Kabylake */ > + case 0xa290 ... 0xa29f: > + case 0xa2e7 ... 0xa2ee: > + rtlpriv->cfg->mod_params->aspm_support = 0; > + break; > + } > + } > + > /* ASPM PS mode. > * 0 - Disable ASPM, > * 1 - Enable ASPM without Clock Req, Does the switch statement need a default case in the event that Intel offers a compatible AP? Larry
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c index 43b611d5288d..720c79e0781a 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c @@ -25,10 +25,29 @@ static void rtl8723be_init_aspm_vars(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct pci_dev *bridge_pdev; /*close ASPM for AMD defaultly */ rtlpci->const_amdpci_aspm = 0; + /* Disable ASPM if RTL8723BE connects to some Intel PCI bridges, such as + * Skylake and Kabylake. Otherwise, the PCI AER flood hangs system. + */ + bridge_pdev = rtlpci->pdev->bus->self; + if (bridge_pdev->vendor == PCI_VENDOR_ID_INTEL) { + switch(bridge_pdev->device) { + case 0x9d15: + /* PCI bridges on Skylake */ + case 0xa110 ... 0xa11f: + case 0xa167 ... 0xa16a: + /* PCI bridges on Kabylake */ + case 0xa290 ... 0xa29f: + case 0xa2e7 ... 0xa2ee: + rtlpriv->cfg->mod_params->aspm_support = 0; + break; + } + } + /* ASPM PS mode. * 0 - Disable ASPM, * 1 - Enable ASPM without Clock Req,
Disable rtl8723be's ASPM if the Realtek RTL8723BE PCIe Wireless adapter connects to some Intel PCI bridges, such as Skylake and Kabylake. Otherwise, the PCI AER flood hangs system: pcieport 0000:00:1c.5: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID) pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=00000001/00002000 pcieport 0000:00:1c.5: [ 0] RxErr (First) pcieport 0000:00:1c.5: AER: Corrected error received: 0000:00:1c.5 pcieport 0000:00:1c.5: AER: can't find device of ID00e5 pcieport 0000:00:1c.5: AER: Corrected error received: 0000:00:1c.5 pcieport 0000:00:1c.5: AER: can't find device of ID00e5 pcieport 0000:00:1c.5: AER: Multiple Corrected error received: 0000:00:1c.5 pcieport 0000:00:1c.5: AER: can't find device of ID00e5 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=218127 Signed-off-by: Jian-Hong Pan <jhp@endlessos.org> --- .../wireless/realtek/rtlwifi/rtl8723be/sw.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)