IPoIB: Add high DMA feature flag

All current InfiniBand devices can handle all DMA addresses, and it's
hard to imagine anyone would be silly enough to build a new device
that couldn't.  Therefore, enable the NETIF_F_HIGHDMA feature for IPoIB.

This has no effect for no, but is needed when we enable gather/scatter
support and checksum stateless offloads.
Signed-off-by: Eli Cohen <eli@mellnaox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/ulp/ipoib/ipoib_main.c

@@ -965,7 +965,9 @@ static void ipoib_setup(struct net_device *dev)
 	dev->addr_len		 = INFINIBAND_ALEN;
 	dev->type		 = ARPHRD_INFINIBAND;
 	dev->tx_queue_len	 = ipoib_sendq_size * 2;
-	dev->features		 = NETIF_F_VLAN_CHALLENGED | NETIF_F_LLTX;
+	dev->features		 = (NETIF_F_VLAN_CHALLENGED	|
+				    NETIF_F_LLTX		|
+				    NETIF_F_HIGHDMA);
 
 	/* MTU will be reset when mcast join happens */
 	dev->mtu		 = IPOIB_PACKET_SIZE - IPOIB_ENCAP_LEN;