1 enum { 2 MaxEther = 24, 3 Ntypes = 8, 4 }; 5 6 typedef struct Ether Ether; 7 struct Ether { 8 ISAConf; /* hardware info */ 9 10 int ctlrno; 11 int tbdf; /* type+busno+devno+funcno */ 12 int minmtu; 13 int maxmtu; 14 uchar ea[Eaddrlen]; 15 16 void (*attach)(Ether*); /* filled in by reset routine */ 17 void (*transmit)(Ether*); 18 void (*interrupt)(Ureg*, void*); 19 long (*ifstat)(Ether*, void*, long, ulong); 20 long (*ctl)(Ether*, void*, long); /* custom ctl messages */ 21 void *ctlr; 22 23 Queue* oq; 24 25 Netif; 26 }; 27 28 extern Block* etheriq(Ether*, Block*, int); 29 extern void addethercard(char*, int(*)(Ether*)); 30 extern ulong ethercrc(uchar*, int); 31 32 #define NEXT(x, l) (((x)+1)%(l)) 33 #define PREV(x, l) (((x) == 0) ? (l)-1: (x)-1) 34