| /* |
| * INET An implementation of the TCP/IP protocol suite for the LINUX |
| * operating system. INET is implemented using the BSD Socket |
| * interface as the means of communication with the user level. |
| * |
| * Definitions for the Interfaces handler. |
| * |
| * Version: @(#)dev.h 1.0.10 08/12/93 |
| * |
| * Authors: Ross Biro, <bir7@leland.Stanford.Edu> |
| * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
| * Corey Minyard <wf-rch!minyard@relay.EU.net> |
| * Donald J. Becker, <becker@super.org> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| #ifndef _DEV_H |
| #define _DEV_H |
| |
| #include <linux/if.h> |
| #include <linux/if_ether.h> |
| |
| |
| /* for future expansion when we will have different priorities. */ |
| #define DEV_NUMBUFFS 3 |
| #define MAX_ADDR_LEN 7 |
| #define MAX_HEADER 18 |
| |
| #define IS_MYADDR 1 /* address is (one of) our own */ |
| #define IS_LOOPBACK 2 /* address is for LOOPBACK */ |
| #define IS_BROADCAST 3 /* address is a valid broadcast */ |
| #define IS_INVBCAST 4 /* Wrong netmask bcast not for us */ |
| |
| /* |
| * The DEVICE structure. |
| * Actually, this whole structure is a big mistake. It mixes I/O |
| * data with strictly "high-level" data, and it has to know about |
| * almost every data structure used in the INET module. We will |
| * gradually phase out this structure, and replace it with the |
| * more general (but stolen :-) BSD "ifnet" structure. -FvK |
| */ |
| struct device { |
| |
| /* |
| * This is the first field of the "visible" part of this structure |
| * (i.e. as seen by users in the "Space.c" file). It is the name |
| * the interface. |
| */ |
| char *name; |
| |
| /* I/O specific fields. These will be moved to DDI soon. */ |
| unsigned long rmem_end; /* shmem "recv" end */ |
| unsigned long rmem_start; /* shmem "recv" start */ |
| unsigned long mem_end; /* sahared mem end */ |
| unsigned long mem_start; /* shared mem start */ |
| unsigned short base_addr; /* device I/O address */ |
| unsigned char irq; /* device IRQ number */ |
| |
| /* Low-level status flags. */ |
| volatile unsigned char start, /* start an operation */ |
| tbusy, /* transmitter busy */ |
| interrupt; /* interrupt arrived */ |
| |
| /* |
| * Another mistake. |
| * This points to the next device in the "dev" chain. It will |
| * be moved to the "invisible" part of the structure as soon as |
| * it has been cleaned up. -FvK |
| */ |
| struct device *next; |
| |
| /* The device initialization function. Called only once. */ |
| int (*init)(struct device *dev); |
| |
| /* Some hardware also needs these fields, but they are not part of the |
| usual set specified in Space.c. */ |
| unsigned char if_port; /* Selectable AUI, TP,..*/ |
| unsigned char dma; /* DMA channel */ |
| |
| struct enet_statistics* (*get_stats)(struct device *dev); |
| |
| /* |
| * This marks the end of the "visible" part of the structure. All |
| * fields hereafter are internal to the system, and may change at |
| * will (read: may be cleaned up at will). |
| */ |
| |
| /* These may be needed for future network-power-down code. */ |
| unsigned long trans_start; /* Time (in jiffies) of last Tx */ |
| unsigned long last_rx; /* Time of last Rx */ |
| |
| unsigned short flags; /* interface flags (a la BSD) */ |
| unsigned short family; /* address family ID (AF_INET) */ |
| unsigned short metric; /* routing metric (not used) */ |
| unsigned short mtu; /* interface MTU value */ |
| unsigned short type; /* interface hardware type */ |
| unsigned short hard_header_len; /* hardware hdr length */ |
| void *priv; /* pointer to private data */ |
| |
| /* Interface address info. */ |
| unsigned char broadcast[MAX_ADDR_LEN]; /* hw bcast add */ |
| unsigned char dev_addr[MAX_ADDR_LEN]; /* hw address */ |
| unsigned char addr_len; /* harfware address length */ |
| unsigned long pa_addr; /* protocol address */ |
| unsigned long pa_brdaddr; /* protocol broadcast addr */ |
| unsigned long pa_dstaddr; /* protocol P-P other side addr */ |
| unsigned long pa_mask; /* protocol netmask */ |
| unsigned short pa_alen; /* protocol address length */ |
| |
| /* Pointer to the interface buffers. */ |
| struct sk_buff *volatile buffs[DEV_NUMBUFFS]; |
| |
| /* Pointers to interface service routines. */ |
| int (*open)(struct device *dev); |
| int (*stop)(struct device *dev); |
| int (*hard_start_xmit) (struct sk_buff *skb, |
| struct device *dev); |
| int (*hard_header) (unsigned char *buff, |
| struct device *dev, |
| unsigned short type, |
| unsigned long daddr, |
| unsigned long saddr, |
| unsigned len); |
| void (*add_arp) (unsigned long addr, |
| struct sk_buff *skb, |
| struct device *dev); |
| void (*queue_xmit)(struct sk_buff *skb, |
| struct device *dev, int pri); |
| int (*rebuild_header)(void *eth, struct device *dev); |
| unsigned short (*type_trans) (struct sk_buff *skb, |
| struct device *dev); |
| #define HAVE_MULTICAST |
| void (*set_multicast_list)(struct device *dev, |
| int num_addrs, void *addrs); |
| #define HAVE_SET_MAC_ADDR |
| int (*set_mac_address)(struct device *dev, void *addr); |
| }; |
| |
| |
| struct packet_type { |
| unsigned short type; /* This is really NET16(ether_type) other |
| * devices will have to translate |
| * appropriately. |
| */ |
| unsigned short copy:1; |
| int (*func) (struct sk_buff *, struct device *, |
| struct packet_type *); |
| void *data; |
| struct packet_type *next; |
| }; |
| |
| |
| /* Used by dev_rint */ |
| #define IN_SKBUFF 1 |
| #define DEV_QUEUE_MAGIC 0x17432895 |
| |
| |
| extern struct device *dev_base; |
| extern struct packet_type *ptype_base; |
| |
| |
| extern int ip_addr_match(unsigned long addr1, unsigned long addr2); |
| extern int chk_addr(unsigned long addr); |
| extern struct device *dev_check(unsigned long daddr); |
| extern unsigned long my_addr(void); |
| |
| extern void dev_add_pack(struct packet_type *pt); |
| extern void dev_remove_pack(struct packet_type *pt); |
| extern struct device *dev_get(char *name); |
| extern int dev_open(struct device *dev); |
| extern int dev_close(struct device *dev); |
| extern void dev_queue_xmit(struct sk_buff *skb, struct device *dev, |
| int pri); |
| #define HAVE_NETIF_RX 1 |
| extern void netif_rx(struct sk_buff *skb); |
| /* The old interface to netif_rx(). */ |
| extern int dev_rint(unsigned char *buff, long len, int flags, |
| struct device * dev); |
| extern void dev_transmit(void); |
| extern int in_inet_bh(void); |
| extern void inet_bh(void *tmp); |
| extern void dev_tint(struct device *dev); |
| extern int dev_get_info(char *buffer); |
| extern int dev_ioctl(unsigned int cmd, void *); |
| |
| extern void dev_init(void); |
| |
| #endif /* _DEV_H */ |
