qeth: enable scatter/gather by default

Set scatter/gather ON by default on OSA, for both layer 2 and
layer 3 modes. We always use fragmentation over QDIO anyway,
so let the upper layers of the stack take advantage of that.

Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Lakhvich Dmitriy <ldmitriy@ru.ibm.com>
Reviewed-by: Thomas Richter <tmricht@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/s390/net/qeth_l2_main.c

@@ -1140,8 +1140,8 @@ static int qeth_l2_setup_netdev(struct qeth_card *card)
 	if (card->info.type == QETH_CARD_TYPE_OSD && !card->info.guestlan) {
 		card->dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
 					 NETIF_F_SG;
-		/* Turn on RX offloading per default */
-		card->dev->features |= NETIF_F_RXCSUM;
+		/* Turn on RX offloading and SG per default */
+		card->dev->features |= NETIF_F_RXCSUM | NETIF_F_SG;
 	}
 	card->info.broadcast_capable = 1;
 	qeth_l2_request_initial_mac(card);

drivers/s390/net/qeth_l3_main.c

@@ -3191,7 +3191,8 @@ static int qeth_l3_setup_netdev(struct qeth_card *card)
 				card->dev->hw_features = NETIF_F_SG |
 					NETIF_F_RXCSUM | NETIF_F_IP_CSUM |
 					NETIF_F_TSO;
-				card->dev->features = NETIF_F_RXCSUM;
+				card->dev->features = NETIF_F_RXCSUM |
+						      NETIF_F_SG;
 			}
 		}
 	} else if (card->info.type == QETH_CARD_TYPE_IQD) {