diff options
Diffstat (limited to 'sys/i4b/layer2/i4b_mbuf.c')
| -rw-r--r-- | sys/i4b/layer2/i4b_mbuf.c | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/sys/i4b/layer2/i4b_mbuf.c b/sys/i4b/layer2/i4b_mbuf.c deleted file mode 100644 index 6d085c3e08c0..000000000000 --- a/sys/i4b/layer2/i4b_mbuf.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * Copyright (c) 1997, 1998 Hellmuth Michaelis. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - *--------------------------------------------------------------------------- - * - * i4b - mbuf handling support routines - * ------------------------------------ - * - * $Id: i4b_mbuf.c,v 1.10 1998/12/05 18:05:20 hm Exp $ - * - * last edit-date: [Sat Dec 5 18:29:44 1998] - * - *---------------------------------------------------------------------------*/ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#if defined(__FreeBSD__) && __FreeBSD__ >= 3 -#include <sys/ioccom.h> -#else -#include <sys/ioctl.h> -#endif -#include <sys/tty.h> -#include <sys/proc.h> -#include <sys/uio.h> -#include <sys/kernel.h> -#include <sys/socket.h> -#include <net/if.h> - -#include <i4b/include/i4b_mbuf.h> -#include <i4b/include/i4b_global.h> - -#define I4B_MBUF_DEBUG -#undef I4B_MBUF_TYPE_DEBUG - -#ifdef I4B_MBUF_TYPE_DEBUG - -#ifdef __FreeBSD__ - -#define MT_DCHAN 42 -#define MT_BCHAN 43 - -#else /* NetBSD */ - -#define MT_DCHAN MT_DATA -#define MT_BCHAN MT_DATA - -#endif - -#define MT_I4B_D MT_DCHAN -#define MT_I4B_B MT_BCHAN - -#else /* ! I4B_MBUF_TYPE_DEBUG */ - -#define MT_I4B_D MT_DATA -#define MT_I4B_B MT_DATA - -#endif /* I4B_MBUF_TYPE_DEBUG */ - -/*---------------------------------------------------------------------------* - * allocate D-channel mbuf space - *---------------------------------------------------------------------------*/ -struct mbuf* -i4b_Dgetmbuf(int len) -{ - struct mbuf *m; - - if(len > MCLBYTES) /* if length > max extension size */ - { - -#ifdef I4B_MBUF_DEBUG - printf("i4b_getmbuf: error - len(%d) > MCLBYTES(%d)\n", - len, MCLBYTES); -#endif - - return(NULL); - } - - MGETHDR(m, M_DONTWAIT, MT_I4B_D); /* get mbuf with pkthdr */ - - /* did we actually get the mbuf ? */ - - if(!m) - { - -#ifdef I4B_MBUF_DEBUG - printf("i4b_getbuf: error - MGETHDR failed!\n"); -#endif - - return(NULL); - } - - if(len >= MHLEN) - { - MCLGET(m, M_DONTWAIT); - - if(!(m->m_flags & M_EXT)) - { - m_freem(m); - -#ifdef I4B_MBUF_DEBUG - printf("i4b_getbuf: error - MCLGET failed, len(%d)\n", len); -#endif - - return (NULL); - } - } - - m->m_len = len; - - return(m); -} - -/*---------------------------------------------------------------------------* - * free a D-channel mbuf - *---------------------------------------------------------------------------*/ -void -i4b_Dfreembuf(struct mbuf *m) -{ - if(m) - m_freem(m); -} - -/*---------------------------------------------------------------------------* - * clear a D-channel ifqueue from data - *---------------------------------------------------------------------------*/ -void -i4b_Dcleanifq(struct ifqueue *ifq) -{ - struct mbuf *m; - int x = splimp(); - - while(!IF_QEMPTY(ifq)) - { - IF_DEQUEUE(ifq, m); - i4b_Dfreembuf(m); - } - - splx(x); -} - -/*---------------------------------------------------------------------------* - * allocate B-channel mbuf space - *---------------------------------------------------------------------------*/ -struct mbuf* -i4b_Bgetmbuf(int len) -{ - struct mbuf *m; - - if(len > MCLBYTES) /* if length > max extension size */ - { - -#ifdef I4B_MBUF_DEBUG - printf("i4b_getmbuf: error - len(%d) > MCLBYTES(%d)\n", - len, MCLBYTES); -#endif - - return(NULL); - } - - MGETHDR(m, M_DONTWAIT, MT_I4B_B); /* get mbuf with pkthdr */ - - /* did we actually get the mbuf ? */ - - if(!m) - { - -#ifdef I4B_MBUF_DEBUG - printf("i4b_getbuf: error - MGETHDR failed!\n"); -#endif - - return(NULL); - } - - if(len >= MHLEN) - { - MCLGET(m, M_DONTWAIT); - - if(!(m->m_flags & M_EXT)) - { - m_freem(m); - -#ifdef I4B_MBUF_DEBUG - printf("i4b_getbuf: error - MCLGET failed, len(%d)\n", len); -#endif - - return (NULL); - } - } - - m->m_len = len; - - return(m); -} - -/*---------------------------------------------------------------------------* - * free a B-channel mbuf - *---------------------------------------------------------------------------*/ -void -i4b_Bfreembuf(struct mbuf *m) -{ - if(m) - m_freem(m); -} - -/*---------------------------------------------------------------------------* - * clear a B-channel ifqueue from data - *---------------------------------------------------------------------------*/ -void -i4b_Bcleanifq(struct ifqueue *ifq) -{ - struct mbuf *m; - int x = splimp(); - - while(!IF_QEMPTY(ifq)) - { - IF_DEQUEUE(ifq, m); - i4b_Bfreembuf(m); - } - - splx(x); -} - -/* EOF */ |