net/tcp/dev.h

/* */
   1 /* dev.h */
   2 /*
   3     Copyright (C) 1992  Ross Biro
   4 
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2, or (at your option)
   8     any later version.
   9 
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14 
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
  18 
  19     The Author may be reached as bir7@leland.stanford.edu or
  20     C/O Department of Mathematics; Stanford University; Stanford, CA 94305
  21 */
  22 /* $Id: dev.h,v 0.8.4.7 1993/01/23 18:00:11 bir7 Exp $ */
  23 /* $Log: dev.h,v $
  24  * Revision 0.8.4.7  1993/01/23  18:00:11  bir7
  25  * Fixed problems from merging.
  26  *
  27  * Revision 0.8.4.6  1993/01/22  22:58:08  bir7
  28  * Changed so transmitting takes place in bottom half of interrupt routine.
  29  *
  30  * Revision 0.8.4.5  1992/12/08  20:49:15  bir7
  31  * Edited ctrl-h's out of log messages.
  32  *
  33  * Revision 0.8.4.4  1992/12/06  23:29:59  bir7
  34  * Converted to using lower half interrupt routine.
  35  *
  36  * Revision 0.8.4.3  1992/12/05  21:35:53  bir7
  37  * Updated dev->init type.
  38  *
  39  * Revision 0.8.4.2  1992/12/03  19:54:12  bir7
  40  * Added paranoid queue checking.
  41  *
  42  * Revision 0.8.4.1  1992/11/10  00:17:18  bir7
  43  * version change only.
  44  *
  45  * Revision 0.8.3.2  1992/11/10  00:14:47  bir7
  46  * Changed malloc to kmalloc and added Id and Log
  47  *
  48  */
  49 
  50 #ifndef _TCP_DEV_H
  51 #define _TCP_DEV_H
  52 /* for future expansion when we will have different priorities. */
  53 #define DEV_NUMBUFFS 3
  54 #define MAX_ADDR_LEN 6
  55 #define MAX_HEADER 14
  56 #define MAX_ROUTE 16
  57 
  58 struct device
  59 {
  60   char *name;
  61   unsigned long rmem_end;
  62   unsigned long rmem_start;
  63   unsigned long mem_end;
  64   unsigned long mem_start;
  65   unsigned short base_addr;
  66   unsigned char irq;
  67   volatile unsigned char start:1,
  68                          tbusy:1,
  69                          loopback:1,
  70                          interrupt:1,
  71                          up:1;
  72   struct device *next;
  73   int (*init)(struct device *dev);
  74   unsigned long trans_start;
  75   volatile struct sk_buff  * volatile buffs[DEV_NUMBUFFS];
  76   struct sk_buff *backlog; /* no longer used. */
  77   int  (*open)(struct device *dev);
  78   int  (*stop)(struct device *dev);
  79   int (*hard_start_xmit) (struct sk_buff *skb, struct device *dev);
  80   int (*hard_header) (unsigned char *buff, struct device *dev,
  81                       unsigned short type, unsigned long daddr,
  82                       unsigned long saddr, unsigned len);
  83   void (*add_arp) (unsigned long addr, struct sk_buff *skb,
  84                    struct device *dev);
  85   void (*queue_xmit)(struct sk_buff *skb, struct device *dev, int pri);
  86   int (*rebuild_header)(void *eth, struct device *dev);
  87   unsigned short (*type_trans) (struct sk_buff *skb, struct device *dev);
  88   void (*send_packet)(struct sk_buff *skb, struct device *dev); /* no longer
  89                                                                    used */
  90   void *private;
  91 
  92   unsigned short type;
  93   unsigned short hard_header_len;
  94   unsigned short mtu;
  95   unsigned char broadcast[MAX_ADDR_LEN];
  96   unsigned char dev_addr[MAX_ADDR_LEN];
  97   unsigned char addr_len;
  98 };
  99 
 100 extern struct device *dev_base;
 101 
 102 struct packet_type
 103 {
 104    unsigned short type; /* This is really NET16(ether_type) other devices
 105                            will have to translate appropriately. */
 106    unsigned short copy:1;
 107    int (*func) (struct sk_buff *, struct device *, struct packet_type *);
 108    void *data;
 109    struct packet_type *next;
 110 };
 111 
 112 /* used by dev_rint */
 113 #define IN_SKBUFF 1
 114 #define DEV_QUEUE_MAGIC 0x17432895
 115 
 116 
 117 extern struct packet_type *ptype_base;
 118 void dev_queue_xmit (struct sk_buff *skb, struct device *dev, int pri);
 119 int dev_rint (unsigned char *buff, long len, int flags, struct device *dev);
 120 void dev_tint ( struct device *dev);
 121 void dev_add_pack (struct packet_type *pt);
 122 void dev_remove_pack (struct packet_type *pt);
 123 struct device *get_dev (char *name);
 124 void inet_bh (void *tmp);
 125 
 126 
 127 #endif
/* */
root/net/tcp/dev.h

INCLUDED FROM
