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r8169: fix performance issue on RTL8168evl

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Disabling TSO but leaving SG active results is a significant
performance drop. Therefore disable also SG on RTL8168evl.
This restores the original performance.

Fixes: 93681cd7d9 ("r8169: enable HW csum and TSO")
Signed-off-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Holger Hoffstätte 2019-08-09 00:02:40 +02:00 committed by David S. Miller
parent 1555e6fdf0
commit a7eb6a4f25
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ethernet/realtek/r8169_main.c
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@ -6898,9 +6898,9 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/* RTL8168e-vl has a HW issue with TSO */
if (tp->mac_version == RTL_GIGA_MAC_VER_34) {
dev->vlan_features &= ~NETIF_F_ALL_TSO;
dev->hw_features &= ~NETIF_F_ALL_TSO;
dev->features &= ~NETIF_F_ALL_TSO;
dev->vlan_features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
dev->hw_features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
dev->features &= ~(NETIF_F_ALL_TSO | NETIF_F_SG);
}
dev->hw_features |= NETIF_F_RXALL;