IB/mlx4: Add support for memory management extensions and local DMA L_Key

Add support for the following operations to mlx4 when device firmware
supports them:

 - Send with invalidate and local invalidate send queue work requests;
 - Allocate/free fast register MRs;
 - Allocate/free fast register MR page lists;
 - Fast register MR send queue work requests;
 - Local DMA L_Key.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h
index a0e046c..fbf0e22 100644
--- a/drivers/net/mlx4/fw.h
+++ b/drivers/net/mlx4/fw.h
@@ -98,7 +98,7 @@
 	int cmpt_entry_sz;
 	int mtt_entry_sz;
 	int resize_srq;
-	u8  bmme_flags;
+	u32 bmme_flags;
 	u32 reserved_lkey;
 	u64 max_icm_sz;
 	int max_gso_sz;