6f5a1bab8f5012705e0b1d0de7bde0a021962f84
[linux-2.6.git] / include / linux / atmlec.h
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
30 typedef 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
50 struct 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
64 struct 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
92 struct 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_ */