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Rev	Author	Line No.	Line
2	-	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	`ulong tbdf;`
		14	`int minmtu;`
		15	`int maxmtu;`
		16
		17	`Netif;`
		18
		19	`void (attach)(Ether); /* filled in by reset routine */`
		20	`void (detach)(Ether);`
		21	`void (transmit)(Ether);`
		22	`void (interrupt)(Ureg, void*);`
		23	`long (ifstat)(Ether, void*, long, ulong);`
		24	`long (ctl)(Ether, void, long); / custom ctl messages */`
		25	`void (power)(Ether, int); /* power on/off */`
		26	`void (shutdown)(Ether); /* shutdown hardware before reboot */`
		27
		28	`void* ctlr;`
		29	`uchar ea[Eaddrlen];`
		30	`void* address;`
		31	`int irq;`
		32
		33	`Queue* oq;`
		34	`};`
		35
		36	`extern Block* etheriq(Ether, Block, int);`
		37	`extern void addethercard(char, int()(Ether*));`
		38	`extern ulong ethercrc(uchar*, int);`
		39	`extern int parseether(uchar, char);`
		40
		41	`#define NEXT(x, l) (((x)+1)%(l))`
		42	`#define PREV(x, l) (((x) == 0) ? (l)-1: (x)-1)`

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