25 lines · c
1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2/*3 * Generic HDLC support routines for Linux4 *5 * Copyright (C) 1999-2005 Krzysztof Halasa <khc@pm.waw.pl>6 *7 * This program is free software; you can redistribute it and/or modify it8 * under the terms of version 2 of the GNU General Public License9 * as published by the Free Software Foundation.10 */11 12#ifndef _UAPI__HDLC_H13#define _UAPI__HDLC_H14 15 16#define HDLC_MAX_MTU 1500 /* Ethernet 1500 bytes */17#if 018#define HDLC_MAX_MRU (HDLC_MAX_MTU + 10 + 14 + 4) /* for ETH+VLAN over FR */19#else20#define HDLC_MAX_MRU 1600 /* as required for FR network */21#endif22 23 24#endif /* _UAPI__HDLC_H */25