IB/core: Add netdev and gid attributes paramteres to cache

Adding an ability to query the IB cache by a netdev and get the
attributes of a GID. These parameters are necessary in order to
successfully resolve the required GID (when the netdevice is known)
and get the Ethernet L2 attributes from a GID.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-By: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/ocrdma/ocrdma_verbs.c

@@ -73,7 +73,7 @@ int ocrdma_query_gid(struct ib_device *ibdev, u8 port,
 	if (index >= OCRDMA_MAX_SGID)
 		return -EINVAL;
 
-	ret = ib_get_cached_gid(ibdev, port, index, sgid);
+	ret = ib_get_cached_gid(ibdev, port, index, sgid, NULL);
 	if (ret == -EAGAIN) {
 		memcpy(sgid, &zgid, sizeof(*sgid));
 		return 0;