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| author | Heiner Kallweit <hkallweit1@gmail.com> | 2018-08-12 14:26:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-22 08:44:52 +0300 |
| commit | 08f5083d541ee47ac04b5bcff6756bbf1c81da07 (patch) | |
| tree | ffde531b268592d96728a41fb9c9d0ae381eb2b1 | |
| parent | 64cfdbc4e18161aa86b930fb83ad0b749703c9d3 (diff) | |
| download | linux-08f5083d541ee47ac04b5bcff6756bbf1c81da07.tar.xz | |
r8169: don't use MSI-X on RTL8168g
[ Upstream commit 7c53a722459c1d6ffb0f5b2058c06ca8980b8600 ]
There have been two reports that network doesn't come back on resume
from suspend when using MSI-X. Both cases affect the same chip version
(RTL8168g - version 40), on different systems. Falling back to MSI
fixes the issue.
Even though we don't really have a proof yet that the network chip
version is to blame, let's disable MSI-X for this version.
Reported-by: Steve Dodd <steved424@gmail.com>
Reported-by: Lou Reed <gogen@disroot.org>
Tested-by: Steve Dodd <steved424@gmail.com>
Tested-by: Lou Reed <gogen@disroot.org>
Fixes: 6c6aa15fdea5 ("r8169: improve interrupt handling")
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>
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 764b25fa470c..d19065857afe 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -8066,6 +8066,11 @@ static int rtl_alloc_irq(struct rtl8169_private *tp) RTL_W8(tp, Config2, RTL_R8(tp, Config2) & ~MSIEnable); RTL_W8(tp, Cfg9346, Cfg9346_Lock); flags = PCI_IRQ_LEGACY; + } else if (tp->mac_version == RTL_GIGA_MAC_VER_40) { + /* This version was reported to have issues with resume + * from suspend when using MSI-X + */ + flags = PCI_IRQ_LEGACY | PCI_IRQ_MSI; } else { flags = PCI_IRQ_ALL_TYPES; } |