IB/mad: Support alternate Base Versions when creating MADs

In preparation to support the new OPA MAD Base version, add a base version
parameter to ib_create_send_mad and set it to IB_MGMT_BASE_VERSION for current
users.

Definition of the new base version and it's processing will occur in later
patches.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/core/agent.c b/drivers/infiniband/core/agent.c
index e51ea76..4fe1fb6 100644
--- a/drivers/infiniband/core/agent.c
+++ b/drivers/infiniband/core/agent.c
@@ -108,7 +108,8 @@
 
 	send_buf = ib_create_send_mad(agent, wc->src_qp, wc->pkey_index, 0,
 				      IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
-				      GFP_KERNEL);
+				      GFP_KERNEL,
+				      IB_MGMT_BASE_VERSION);
 	if (IS_ERR(send_buf)) {
 		dev_err(&device->dev, "ib_create_send_mad error\n");
 		goto err1;