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Commit 1a0150a9 authored by brenohl@br.ibm.com's avatar brenohl@br.ibm.com Committed by David S. Miller
Browse files

qlge: Add offload features to vlan interfaces 



This patch fills the net_device vlan_features with the proper hardware features,
thus, improving the vlan interface performance.

With the patch applied, I can see around 148% improvement on a TCP_STREAM test,
from 3.5 Gb/s to 8.7 Gb/s. On TCP_RR, I see a 11% improvement, from 18k
to 20. The CPU utilization is almost the same on both cases, from the comparison
above.

Signed-off-by: default avatarBreno Leitao <brenohl@br.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f7da9cdf

drivers/net/ethernet/qlogic/qlge/qlge_main.c

+1 −0
Original line number Diff line number Diff line
@@ -4682,6 +4682,7 @@ static int __devinit qlge_probe(struct pci_dev *pdev, 
		NETIF_F_HW_VLAN_TX | NETIF_F_RXCSUM;

	ndev->features = ndev->hw_features |

		NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;

	ndev->vlan_features = ndev->hw_features;



	if (test_bit(QL_DMA64, &qdev->flags))

		ndev->features |= NETIF_F_HIGHDMA;