e1000: FIX: enable hw TSO for IPV6

Enable TSO for IPV6. All e1000 hardware supports it. This reduces CPU
utilizations by 50% when transmitting IPv6 frames.

Fix symbol naming enabling ipv6 TSO. Turn off TSO6 for 10/100.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c
index 82d2c78e1696..b9c0927d79b3 100644
--- a/drivers/net/e1000/e1000_ethtool.c
+++ b/drivers/net/e1000/e1000_ethtool.c
@@ -348,6 +348,13 @@ e1000_set_tso(struct net_device *netdev, uint32_t data)
         else
                 netdev->features &= ~NETIF_F_TSO;
 
+#ifdef NETIF_F_TSO6
+        if (data)
+                netdev->features |= NETIF_F_TSO6;
+        else
+                netdev->features &= ~NETIF_F_TSO6;
+#endif
+
         DPRINTK(PROBE, INFO, "TSO is %s\n", data ? "Enabled" : "Disabled");
         adapter->tso_force = TRUE;
         return 0;