ref: fa18daa2f56b306b151781523e877bd07d62f799
dir: /os/pc64/etherif.h/
enum {
MaxEther = 64,
Ntypes = 8,
};
typedef struct Ether Ether;
struct Ether {
ISAConf; /* hardware info */
s32 ctlrno;
s32 tbdf; /* type+busno+devno+funcno */
s32 minmtu;
s32 maxmtu;
uchar ea[Eaddrlen];
void (*attach)(Ether*); /* filled in by reset routine */
void (*detach)(Ether*);
void (*transmit)(Ether*);
/* TODO removed in 9front void (*interrupt)(Ureg*, void*); */
s32 (*ifstat)(Ether*, void*, s32, u32);
s32 (*ctl)(Ether*, void*, s32); /* custom ctl messages */
void (*power)(Ether*, s32); /* power on/off */
void (*shutdown)(Ether*); /* shutdown hardware before reboot */
void *ctlr;
Queue* oq;
Netif;
};
extern Block* etheriq(Ether*, Block*, s32);
extern void addethercard(char*, int(*)(Ether*));
extern u32 ethercrc(uchar*, s32);
extern s32 parseether(uchar*, char*);
#define NEXT(x, l) (((x)+1)%(l))
#define PREV(x, l) (((x) == 0) ? (l)-1: (x)-1)
#define HOWMANY(x, y) (((x)+((y)-1))/(y))
#define ROUNDUP(x, y) (HOWMANY((x), (y))*(y))