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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 
15 struct atmmpc_ioc {
16         int dev_num;
17         __be32 ipaddr;              /* the IP address of the shortcut    */
18         int type;                     /* ingress or egress                 */
19 };
20 
21 typedef 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 
31 typedef 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 
42 struct 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 
51 struct 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 
63 struct 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