1#ifndef _ATMMPC_H_
2#define _ATMMPC_H_
3
4#include <linux/atmapi.h>
5#include <linux/atmioc.h>
6#include <linux/atm.h>
7#include <linux/types.h>
8
9#define ATMMPC_CTRL _IO('a', ATMIOC_MPOA)
10#define ATMMPC_DATA _IO('a', ATMIOC_MPOA+1)
11
12#define MPC_SOCKET_INGRESS 1
13#define MPC_SOCKET_EGRESS  2
14
15struct atmmpc_ioc {
16        int dev_num;
17        __be32 ipaddr;              /* the IP address of the shortcut    */
18        int type;                     /* ingress or egress                 */
19};
20
21typedef struct in_ctrl_info {
22        __u8   Last_NHRP_CIE_code;
23        __u8   Last_Q2931_cause_value;
24        __u8   eg_MPC_ATM_addr[ATM_ESA_LEN];
25        __be32  tag;
26        __be32  in_dst_ip;      /* IP address this ingress MPC sends packets to */
27        __u16  holding_time;
28        __u32  request_id;
29} in_ctrl_info;
30
31typedef struct eg_ctrl_info {
32        __u8   DLL_header[256];
33        __u8   DH_length;
34        __be32  cache_id;
35        __be32  tag;
36        __be32  mps_ip;
37        __be32  eg_dst_ip;      /* IP address to which ingress MPC sends packets */
38        __u8   in_MPC_data_ATM_addr[ATM_ESA_LEN];
39        __u16  holding_time;
40} eg_ctrl_info;
41
42struct mpc_parameters {
43        __u16 mpc_p1;   /* Shortcut-Setup Frame Count    */
44        __u16 mpc_p2;   /* Shortcut-Setup Frame Time     */
45        __u8 mpc_p3[8]; /* Flow-detection Protocols      */
46        __u16 mpc_p4;   /* MPC Initial Retry Time        */
47        __u16 mpc_p5;   /* MPC Retry Time Maximum        */
48        __u16 mpc_p6;   /* Hold Down Time                */
49} ;
50
51struct k_message {
52        __u16 type;
53        __be32 ip_mask;
54        __u8  MPS_ctrl[ATM_ESA_LEN];
55        union {
56                in_ctrl_info in_info;
57                eg_ctrl_info eg_info;
58                struct mpc_parameters params;
59        } content;
60        struct atm_qos qos;
61} __ATM_API_ALIGN;
62
63struct llc_snap_hdr {
64	/* RFC 1483 LLC/SNAP encapsulation for routed IP PDUs */
65        __u8  dsap;    /* Destination Service Access Point (0xAA)     */
66        __u8  ssap;    /* Source Service Access Point      (0xAA)     */
67        __u8  ui;      /* Unnumbered Information           (0x03)     */
68        __u8  org[3];  /* Organizational identification    (0x000000) */
69        __u8  type[2]; /* Ether type (for IP)              (0x0800)   */
70};
71
72/* TLVs this MPC recognizes */
73#define TLV_MPOA_DEVICE_TYPE         0x00a03e2a
74
75/* MPOA device types in MPOA Device Type TLV */
76#define NON_MPOA    0
77#define MPS         1
78#define MPC         2
79#define MPS_AND_MPC 3
80
81
82/* MPC parameter defaults */
83
84#define MPC_P1 10  /* Shortcut-Setup Frame Count  */
85#define MPC_P2 1   /* Shortcut-Setup Frame Time   */
86#define MPC_P3 0   /* Flow-detection Protocols    */
87#define MPC_P4 5   /* MPC Initial Retry Time      */
88#define MPC_P5 40  /* MPC Retry Time Maximum      */
89#define MPC_P6 160 /* Hold Down Time              */
90#define HOLDING_TIME_DEFAULT 1200 /* same as MPS-p7 */
91
92/* MPC constants */
93
94#define MPC_C1 2   /* Retry Time Multiplier       */
95#define MPC_C2 60  /* Initial Keep-Alive Lifetime */
96
97/* Message types - to MPOA daemon */
98
99#define SND_MPOA_RES_RQST    201
100#define SET_MPS_CTRL_ADDR    202
101#define SND_MPOA_RES_RTRY    203 /* Different type in a retry due to req id         */
102#define STOP_KEEP_ALIVE_SM   204
103#define EGRESS_ENTRY_REMOVED 205
104#define SND_EGRESS_PURGE     206
105#define DIE                  207 /* tell the daemon to exit()                       */
106#define DATA_PLANE_PURGE     208 /* Data plane purge because of egress cache hit miss or dead MPS */
107#define OPEN_INGRESS_SVC     209
108
109/* Message types - from MPOA daemon */
110
111#define MPOA_TRIGGER_RCVD     101
112#define MPOA_RES_REPLY_RCVD   102
113#define INGRESS_PURGE_RCVD    103
114#define EGRESS_PURGE_RCVD     104
115#define MPS_DEATH             105
116#define CACHE_IMPOS_RCVD      106
117#define SET_MPC_CTRL_ADDR     107 /* Our MPC's control ATM address   */
118#define SET_MPS_MAC_ADDR      108
119#define CLEAN_UP_AND_EXIT     109
120#define SET_MPC_PARAMS        110 /* MPC configuration parameters    */
121
122/* Message types - bidirectional */
123
124#define RELOAD                301 /* kill -HUP the daemon for reload */
125
126#endif /* _ATMMPC_H_ */
127