--- /dev/null
+syntax = "proto2";
+
+message GPSPM_flush_request {
+ /* an offset of a region to be flushed within its memory registration */
+ required fixed64 offset = 1;
+ /* a length of a region to be flushed */
+ required fixed64 length = 2;
+ /* a user-defined operation context */
+ required fixed64 op_context = 3;
+}
+
+message GPSPM_flush_response {
+ /* the operation context of a completed request */
+ required fixed64 op_context = 1;
+}