1/*
2 * ATM Lan Emulation Daemon driver interface
3 *
4 * Marko Kiiskila <mkiiskila@yahoo.com>
5 */
6
7#ifndef _ATMLEC_H_
8#define _ATMLEC_H_
9
10#include <linux/atmapi.h>
11#include <linux/atmioc.h>
12#include <linux/atm.h>
13#include <linux/if_ether.h>
14
15/* ATM lec daemon control socket */
16#define ATMLEC_CTRL	_IO('a', ATMIOC_LANE)
17#define ATMLEC_DATA	_IO('a', ATMIOC_LANE+1)
18#define ATMLEC_MCAST	_IO('a', ATMIOC_LANE+2)
19
20/* Maximum number of LEC interfaces (tweakable) */
21#define MAX_LEC_ITF 48
22
23/*
24 * From the total of MAX_LEC_ITF, last NUM_TR_DEVS are reserved for Token Ring.
25 * E.g. if MAX_LEC_ITF = 48 and NUM_TR_DEVS = 8, then lec0-lec39 are for
26 * Ethernet ELANs and lec40-lec47 are for Token Ring ELANS.
27 */
28#define NUM_TR_DEVS 8
29
30typedef enum {
31	l_set_mac_addr,
32	l_del_mac_addr,
33	l_svc_setup,
34	l_addr_delete,
35	l_topology_change,
36	l_flush_complete,
37	l_arp_update,
38	l_narp_req,		/* LANE2 mandates the use of this */
39	l_config,
40	l_flush_tran_id,
41	l_set_lecid,
42	l_arp_xmt,
43	l_rdesc_arp_xmt,
44	l_associate_req,
45	l_should_bridge		/* should we bridge this MAC? */
46} atmlec_msg_type;
47
48#define ATMLEC_MSG_TYPE_MAX l_should_bridge
49
50struct atmlec_config_msg {
51	unsigned int maximum_unknown_frame_count;
52	unsigned int max_unknown_frame_time;
53	unsigned short max_retry_count;
54	unsigned int aging_time;
55	unsigned int forward_delay_time;
56	unsigned int arp_response_time;
57	unsigned int flush_timeout;
58	unsigned int path_switching_delay;
59	unsigned int lane_version;	/* LANE2: 1 for LANEv1, 2 for LANEv2 */
60	int mtu;
61	int is_proxy;
62};
63
64struct atmlec_msg {
65	atmlec_msg_type type;
66	int sizeoftlvs;		/* LANE2: if != 0, tlvs follow */
67	union {
68		struct {
69			unsigned char mac_addr[ETH_ALEN];
70			unsigned char atm_addr[ATM_ESA_LEN];
71			unsigned int flag;	/*
72						 * Topology_change flag,
73						 * remoteflag, permanent flag,
74						 * lecid, transaction id
75						 */
76			unsigned int targetless_le_arp;	/* LANE2 */
77			unsigned int no_source_le_narp;	/* LANE2 */
78		} normal;
79		struct atmlec_config_msg config;
80		struct {
81			uint16_t lec_id;			/* requestor lec_id  */
82			uint32_t tran_id;			/* transaction id    */
83			unsigned char mac_addr[ETH_ALEN];	/* dst mac addr      */
84			unsigned char atm_addr[ATM_ESA_LEN];	/* reqestor ATM addr */
85		} proxy;	/*
86				 * For mapping LE_ARP requests to responses. Filled by
87				 * zeppelin, returned by kernel. Used only when proxying
88				 */
89	} content;
90} __ATM_API_ALIGN;
91
92struct atmlec_ioc {
93	int dev_num;
94	unsigned char atm_addr[ATM_ESA_LEN];
95	unsigned char receive;	/* 1= receive vcc, 0 = send vcc */
96};
97#endif /* _ATMLEC_H_ */
98