From: Heiner Kallweit hkallweit1@gmail.com
[ Upstream commit 003bd5b4a7b4a94b501e3a1e2e7c9df6b2a94ed4 ]
It was reported that after resuming from suspend network fails with error "do_IRQ: 3.38 No irq handler for vector", see [0]. Enabling WoL can work around the issue, but the only actual fix is to disable MSI. So let's mimic the behavior of the vendor driver and disable MSI on all chip versions before RTL8168d.
[0] https://bugzilla.kernel.org/show_bug.cgi?id=204079
Fixes: 6c6aa15fdea5 ("r8169: improve interrupt handling") Reported-by: Dušan Dragić dragic.dusan@gmail.com Tested-by: Dušan Dragić dragic.dusan@gmail.com Signed-off-by: Heiner Kallweit hkallweit1@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/realtek/r8169.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -7239,13 +7239,18 @@ static int rtl_alloc_irq(struct rtl8169_ { unsigned int flags;
- if (tp->mac_version <= RTL_GIGA_MAC_VER_06) { + switch (tp->mac_version) { + case RTL_GIGA_MAC_VER_02 ... RTL_GIGA_MAC_VER_06: RTL_W8(tp, Cfg9346, Cfg9346_Unlock); RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable); RTL_W8(tp, Cfg9346, Cfg9346_Lock); + /* fall through */ + case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_24: flags = PCI_IRQ_LEGACY; - } else { + break; + default: flags = PCI_IRQ_ALL_TYPES; + break; }
return pci_alloc_irq_vectors(tp->pci_dev, 1, 1, flags);