1 enum 2 { 3 MaxEther = 4, 4 Ntypes = 8, 5 }; 6 7 typedef struct Ether Ether; 8 struct Ether { 9 RWlock; 10 ISAConf; /* hardware info */ 11 12 int ctlrno; 13 int minmtu; 14 int maxmtu; 15 16 Netif; 17 18 void (*attach)(Ether*); /* filled in by reset routine */ 19 void (*detach)(Ether*); 20 void (*transmit)(Ether*); 21 void (*interrupt)(Ureg*, void*); 22 long (*ifstat)(Ether*, void*, long, ulong); 23 long (*ctl)(Ether*, void*, long); /* custom ctl messages */ 24 void (*power)(Ether*, int); /* power on/off */ 25 void (*shutdown)(Ether*); /* shutdown hardware before reboot */ 26 27 void* ctlr; 28 uchar ea[Eaddrlen]; 29 void* address; 30 int irq; 31 32 Queue* oq; 33 }; 34 35 extern Block* etheriq(Ether*, Block*, int); 36 extern void addethercard(char*, int(*)(Ether*)); 37 extern ulong ethercrc(uchar*, int); 38 extern int parseether(uchar*, char*); 39 40 #define NEXT(x, l) (((x)+1)%(l)) 41 #define PREV(x, l) (((x) == 0) ? (l)-1: (x)-1) 42