From 1a0150a93c496986297fc08304ac564213c08942 Mon Sep 17 00:00:00 2001 From: "brenohl@br.ibm.com" Date: Fri, 27 Jul 2012 08:54:52 +0000 Subject: [PATCH] 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: Breno Leitao Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c index 3769f57..b53a3b6 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c @@ -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; -- 2.7.4