if ether, then etherif.h

1 files changed, 38 insertions, 0 deletions

diff --git a/sys/src/9/port/etherif.h b/sys/src/9/port/etherif.h
new file mode 100644
index 000000000..f722b9108
--- /dev/null
+++ b/sys/src/9/port/etherif.h
@@ -0,0 +1,38 @@
+enum {
+	MaxEther	= 64,
+	Ntypes		= 8,
+};
+
+typedef struct Ether Ether;
+struct Ether {
+	ISAConf;			/* hardware info */
+	int	tbdf;			/* type+busno+devno+funcno */
+
+	int	ctlrno;
+	int	minmtu;
+	int 	maxmtu;
+	uchar	ea[Eaddrlen];
+
+	void	(*attach)(Ether*);	/* filled in by reset routine */
+	void	(*detach)(Ether*);
+	void	(*transmit)(Ether*);
+	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;
+
+	Queue*	oq;
+
+	Netif;
+};
+
+extern Block* etheriq(Ether*, Block*, int);
+extern void addethercard(char*, int(*)(Ether*));
+extern ulong 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)
+#define	HOWMANY(x, y)	(((x)+((y)-1))/(y))
+#define ROUNDUP(x, y)	(HOWMANY((x), (y))*(y))