From mboxrd@z Thu Jan 1 00:00:00 1970 From: Corcodel Marian Subject: [PATCH 1/2 net-next v3.16]r8169: Disable latency timer on pci express Date: Sat, 19 Mar 2016 15:10:26 +0200 Message-ID: <1458393027-1927-1-git-send-email-asd@marian1000.go.ro> Cc: Francois Romieu , Corcodel Marian To: netdev@vger.kernel.org Return-path: Received: from 5-14-53-82.residential.rdsnet.ro ([5.14.53.82]:35359 "EHLO marian1000.go.ro" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754514AbcCSNia (ORCPT ); Sat, 19 Mar 2016 09:38:30 -0400 Sender: netdev-owner@vger.kernel.org List-ID: On pci express interface not support latency timer. Signed-off-by: Corcodel Marian --- drivers/net/ethernet/realtek/r8169.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 61623e9..2594bbb 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -3757,8 +3757,8 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp) dprintk("Set MAC Reg C+CR Offset 0x82h = 0x01h\n"); RTL_W8(0x82, 0x01); } - - pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); + if (!tp->pci_dev->pcie_cap) + pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40); if (tp->mac_version <= RTL_GIGA_MAC_VER_06) pci_write_config_byte(tp->pci_dev, PCI_CACHE_LINE_SIZE, 0x08); -- 2.1.4