diff -r 2f82d964b8be -r b01185225eaa components/open-fabrics/libsif/include/sif/sif_int_user.h
--- a/components/open-fabrics/libsif/include/sif/sif_int_user.h	Mon Oct 17 16:13:44 2016 -0700
+++ b/components/open-fabrics/libsif/include/sif/sif_int_user.h	Mon Oct 17 23:20:28 2016 -0700
@@ -70,6 +70,7 @@
 	volatile __u16 head_seq;
 	__u16 trusted_seq;
 	__u8 tsl;
+	bool need_flush;
 	volatile __u64 flags;
 }sif_sq_sw_t;