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- /*
- * This file is part of the UCB release of Plan 9. It is subject to the license
- * terms in the LICENSE file found in the top-level directory of this
- * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
- * part of the UCB release of Plan 9, including this file, may be copied,
- * modified, propagated, or distributed except according to the terms contained
- * in the LICENSE file.
- */
- enum
- {
- Eaddrlen = 6,
- ETHERMINTU = 60, /* minimum transmit size */
- ETHERMAXTU = 1514, /* maximum transmit size */
- ETHERHDRSIZE = 14, /* size of an ethernet header */
- MaxEther = 48,
- Ntypes = 8,
- };
- typedef struct Ether Ether;
- struct Ether {
- ISAConf; /* hardware info */
- int ctlrno;
- int tbdf; /* type+busno+devno+funcno */
- uchar ea[Eaddrlen];
- void (*attach)(Ether*); /* filled in by reset routine */
- void (*detach)(Ether*);
- void (*transmit)(Ether*);
- void (*interrupt)(Ureg*, void*);
- long (*ifstat)(Ether*, void*, long, ulong);
- long (*ctl)(Ether*, void*, long); /* custom ctl messages */
- void (*power)(Ether*, int); /* power on/off */
- void (*shutdown)(Ether*); /* shutdown hardware before reboot */
- void *ctlr;
- int scan[Ntypes]; /* base station scanning interval */
- int nscan; /* number of base station scanners */
- Netif;
- };
- typedef struct Etherpkt Etherpkt;
- struct Etherpkt
- {
- uchar d[Eaddrlen];
- uchar s[Eaddrlen];
- uchar type[2];
- uchar data[1500];
- };
- extern Block* etheriq(Ether*, Block*, int);
- extern void addethercard(char*, int(*)(Ether*));
- extern uint32_t ethercrc(uchar*, int);
- extern int parseether(uchar*, char*);
- #define NEXT(x, l) (((x)+1)%(l))
- #define PREV(x, l) (((x) == 0) ? (l)-1: (x)-1)
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