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Commit 1d962ecf authored by brenohl@br.ibm.com's avatar brenohl@br.ibm.com Committed by David S. Miller
Browse files

cxgb3: Set vlan_feature on net_device 



cxgb3 interface has a bad performance when VLAN is set. On my current
setup, a PowerLinux 7R2, I am able to get around 7 Gbps on a TCP_STREAM
(8 instances, 4k message).
With this patch, I am able to reach 9.5 Gbps.

Signed-off-by: default avatarBreno Leitao <brenohl@br.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 83bd1b79

drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -3173,6 +3173,9 @@ static void __devinit cxgb3_init_iscsi_mac(struct net_device *dev) 
	pi->iscsic.mac_addr[3] |= 0x80;

	pi->iscsic.mac_addr[3] |= 0x80;

}

}





#define TSO_FLAGS (NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_TSO_ECN)

#define VLAN_FEAT (NETIF_F_SG | NETIF_F_IP_CSUM | TSO_FLAGS | \

			NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA)

static int __devinit init_one(struct pci_dev *pdev,

static int __devinit init_one(struct pci_dev *pdev,

			      const struct pci_device_id *ent)

			      const struct pci_device_id *ent)

{

{
@@ -3293,6 +3296,7 @@ static int __devinit init_one(struct pci_dev *pdev, 
		netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |

		netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |

			NETIF_F_TSO | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_RX;

			NETIF_F_TSO | NETIF_F_RXCSUM | NETIF_F_HW_VLAN_RX;

		netdev->features |= netdev->hw_features | NETIF_F_HW_VLAN_TX;

		netdev->features |= netdev->hw_features | NETIF_F_HW_VLAN_TX;

		netdev->vlan_features |= netdev->features & VLAN_FEAT;

		if (pci_using_dac)

		if (pci_using_dac)

			netdev->features |= NETIF_F_HIGHDMA;

			netdev->features |= NETIF_F_HIGHDMA;