igb: update feature flags supported in ethtool

This driver is currently using HW_CSUM which is not correct.  Update this
to use the IP_CSUM and IPV6_CSUM flags.  In addition consolidate the TSO
flag setting.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index e3a3582..8c27e0a 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -1158,11 +1158,12 @@
 			"PHY reset is blocked due to SOL/IDER session.\n");
 
 	netdev->features = NETIF_F_SG |
-			   NETIF_F_HW_CSUM |
+			   NETIF_F_IP_CSUM |
 			   NETIF_F_HW_VLAN_TX |
 			   NETIF_F_HW_VLAN_RX |
 			   NETIF_F_HW_VLAN_FILTER;
 
+	netdev->features |= NETIF_F_IPV6_CSUM;
 	netdev->features |= NETIF_F_TSO;
 	netdev->features |= NETIF_F_TSO6;
 
@@ -1172,7 +1173,7 @@
 
 	netdev->vlan_features |= NETIF_F_TSO;
 	netdev->vlan_features |= NETIF_F_TSO6;
-	netdev->vlan_features |= NETIF_F_HW_CSUM;
+	netdev->vlan_features |= NETIF_F_IP_CSUM;
 	netdev->vlan_features |= NETIF_F_SG;
 
 	if (pci_using_dac)