server: debug fixes

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/server.h b/server.h
index 79449a6..d66782d 100644
--- a/server.h
+++ b/server.h
@@ -74,7 +74,7 @@
 	memset(cmd, 0, sizeof(*cmd));
 
 	cmd->version	= cpu_to_le16(FIO_SERVER_VER1);
-	cmd->opcode	= cpu_to_le16(FIO_NET_CMD_TEXT);
+	cmd->opcode	= cpu_to_le16(opcode);
 
 	if (pdu) {
 		cmd->pdu_len	= cpu_to_le32(pdu_len);