Commit 42f66a44 authored by Heiner Kallweit's avatar Heiner Kallweit Committed by David S. Miller
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r8169: enable GRO software interrupt coalescing per default 



There are reports about r8169 not reaching full line speed on certain
systems (e.g. SBC's) with a 2.5Gbps link.
There was a time when hardware interrupt coalescing was enabled per
default, but this was changed due to ASPM-related issues on few systems.
So let's use software interrupt coalescing instead and enable it
using new function netdev_sw_irq_coalesce_default_on().

Even with these conservative settings interrupt load on my 1Gbps test
system reduced significantly.

Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d9360708

drivers/net/ethernet/realtek/r8169_main.c

+2 −0
Original line number Diff line number Diff line
@@ -5283,6 +5283,8 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 
	dev->hw_features |= NETIF_F_RXALL;

	dev->hw_features |= NETIF_F_RXFCS;



	netdev_sw_irq_coalesce_default_on(dev);



	/* configure chip for default features */

	rtl8169_set_features(dev, dev->features);