1*e2be04c7SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2607ca46eSDavid Howells /* 3607ca46eSDavid Howells * Generic HDLC support routines for Linux 4607ca46eSDavid Howells * 5607ca46eSDavid Howells * Copyright (C) 1999-2005 Krzysztof Halasa <khc@pm.waw.pl> 6607ca46eSDavid Howells * 7607ca46eSDavid Howells * This program is free software; you can redistribute it and/or modify it 8607ca46eSDavid Howells * under the terms of version 2 of the GNU General Public License 9607ca46eSDavid Howells * as published by the Free Software Foundation. 10607ca46eSDavid Howells */ 11607ca46eSDavid Howells 12607ca46eSDavid Howells #ifndef _UAPI__HDLC_H 13607ca46eSDavid Howells #define _UAPI__HDLC_H 14607ca46eSDavid Howells 15607ca46eSDavid Howells 16607ca46eSDavid Howells #define HDLC_MAX_MTU 1500 /* Ethernet 1500 bytes */ 17607ca46eSDavid Howells #if 0 18607ca46eSDavid Howells #define HDLC_MAX_MRU (HDLC_MAX_MTU + 10 + 14 + 4) /* for ETH+VLAN over FR */ 19607ca46eSDavid Howells #else 20607ca46eSDavid Howells #define HDLC_MAX_MRU 1600 /* as required for FR network */ 21607ca46eSDavid Howells #endif 22607ca46eSDavid Howells 23607ca46eSDavid Howells 24607ca46eSDavid Howells #endif /* _UAPI__HDLC_H */ 25