IB/ehca: Add PMA support

This patch enables ehca to redirect any PMA queries to the
actual PMA QP.

Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Reviewed-by: Joachim Fenkes <fenkes@de.ibm.com>
Reviewed-by: Christoph Raisch <raisch@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h
index f281d16..92cce8a 100644
--- a/drivers/infiniband/hw/ehca/ehca_classes.h
+++ b/drivers/infiniband/hw/ehca/ehca_classes.h
@@ -101,6 +101,7 @@
 	spinlock_t mod_sqp_lock;
 	enum ib_port_state port_state;
 	struct ehca_sma_attr saved_attr;
+	u32 pma_qp_nr;
 };
 
 #define HCA_CAP_MR_PGSIZE_4K  0x80000000