[PATCH 4.18 060/350] r8169: re-enable MSI-X on RTL8168g

Greg Kroah-Hartman
2018-11-11T22:29:47Z

From: Heiner Kallweit <hkallweit1@gmail.com>

[ Upstream commit 9675931e6b65d160d16bcc9472c1acef15524def ]

Similar to d49c88d7677b ("r8169: Enable MSI-X on RTL8106e") after
e9d0ba506ea8 ("PCI: Reprogram bridge prefetch registers on resume")
we can safely assume that this also fixes the root cause of
the issue worked around by 7c53a722459c ("r8169: don't use MSI-X on
RTL8168g"). So let's revert it.

Fixes: 7c53a722459c ("r8169: don't use MSI-X on RTL8168g")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/realtek/r8169.c | 5 -----
1 file changed, 5 deletions(-)

--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -7544,11 +7544,6 @@ static int rtl_alloc_irq(struct rtl8169_
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;
}