xref: /openbmc/linux/include/uapi/linux/atm_tcp.h (revision b2441318)
1 /* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
2 	       driver-specific utilities) */
3 
4 /* Written 1997-2000 by Werner Almesberger, EPFL LRC/ICA */
5 
6 
7 #ifndef _UAPILINUX_ATM_TCP_H
8 #define _UAPILINUX_ATM_TCP_H
9 
10 #include <linux/atmapi.h>
11 #include <linux/atm.h>
12 #include <linux/atmioc.h>
13 #include <linux/types.h>
14 
15 
16 /*
17  * All values in struct atmtcp_hdr are in network byte order
18  */
19 
20 struct atmtcp_hdr {
21 	__u16	vpi;
22 	__u16	vci;
23 	__u32	length;		/* ... of data part */
24 };
25 
26 /*
27  * All values in struct atmtcp_command are in host byte order
28  */
29 
30 #define ATMTCP_HDR_MAGIC	(~0)	/* this length indicates a command */
31 #define ATMTCP_CTRL_OPEN	1	/* request/reply */
32 #define ATMTCP_CTRL_CLOSE	2	/* request/reply */
33 
34 struct atmtcp_control {
35 	struct atmtcp_hdr hdr;	/* must be first */
36 	int type;		/* message type; both directions */
37 	atm_kptr_t vcc;		/* both directions */
38 	struct sockaddr_atmpvc addr; /* suggested value from kernel */
39 	struct atm_qos	qos;	/* both directions */
40 	int result;		/* to kernel only */
41 } __ATM_API_ALIGN;
42 
43 /*
44  * Field usage:
45  * Messge type	dir.	hdr.v?i	type	addr	qos	vcc	result
46  * -----------  ----	------- ----	----	---	---	------
47  * OPEN		K->D	Y	Y	Y	Y	Y	0
48  * OPEN		D->K	-	Y	Y	Y	Y	Y
49  * CLOSE	K->D	-	-	Y	-	Y	0
50  * CLOSE	D->K	-	-	-	-	Y	Y
51  */
52 
53 #define SIOCSIFATMTCP	_IO('a',ATMIOC_ITF)	/* set ATMTCP mode */
54 #define ATMTCP_CREATE	_IO('a',ATMIOC_ITF+14)	/* create persistent ATMTCP
55 						   interface */
56 #define ATMTCP_REMOVE	_IO('a',ATMIOC_ITF+15)	/* destroy persistent ATMTCP
57 						   interface */
58 
59 
60 
61 #endif /* _UAPILINUX_ATM_TCP_H */
62