From: Heiner Kallweit hkallweit1@gmail.com
[ Upstream commit f13bc68131b0c0d67a77fb43444e109828a983bf ]
The original change fixed an issue on RTL8168b by mimicking the vendor driver behavior to disable MSI on chip versions before RTL8168d. This however now caused an issue on a system with RTL8168c, see [0]. Therefore leave MSI disabled on RTL8168b, but re-enable it on RTL8168c.
[0] https://bugzilla.redhat.com/show_bug.cgi?id=1792839
Fixes: 003bd5b4a7b4 ("r8169: don't use MSI before RTL8168d") Signed-off-by: Heiner Kallweit hkallweit1@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/realtek/r8169_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -6812,7 +6812,7 @@ static int rtl_alloc_irq(struct rtl8169_ RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable); rtl_lock_config_regs(tp); /* fall through */ - case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_24: + case RTL_GIGA_MAC_VER_07 ... RTL_GIGA_MAC_VER_17: flags = PCI_IRQ_LEGACY; break; default: