Fix MR registration for providers which don't support extended

Check for the right errno that returned from the missing
implementation.

The check tests EPROTONOSUPPORT but it can also fail with EOPNOTSUPP.

Reviewed-by: Yonatan Nachum <[email protected]>
Reviewed-by: Yossi Leybovich <[email protected]>
Signed-off-by: Ramon Fried <[email protected]>

Author: mellowcandle

src/perftest_resources.c

@@ -1902,7 +1902,8 @@ static int register_memory_region(struct pingpong_context *ctx,
 
 	mr = register_func(ctx, user_param, qp_index, flags, dmabuf_fd, dmabuf_offset);
 
-	if (!mr && errno == EPROTONOSUPPORT && register_func != register_mr) {
+	if (!mr && (errno == EOPNOTSUPP || errno == EPROTONOSUPPORT) &&
+	    register_func != register_mr) {
 		/* If extended registration is not supported, fall back to standard registration */
 		register_func = register_mr;
 		mr = register_func(ctx, user_param, qp_index, flags, dmabuf_fd, dmabuf_offset);