linux/include/linux/atmmpc.h
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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
  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
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