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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