include/linux/atmmpc.h

   1 #ifndef _ATMMPC_H_
   2 #define _ATMMPC_H_
   3
   4 #include <linux/atmioc.h>
   5 #include <linux/atm.h>
   6
   7 #define ATMMPC_CTRL _IO('a', ATMIOC_MPOA)
   8 #define ATMMPC_DATA _IO('a', ATMIOC_MPOA+1)
   9
  10 #define MPC_SOCKET_INGRESS 1
  11 #define MPC_SOCKET_EGRESS  2
  12
  13 struct atmmpc_ioc {
  14         int dev_num;
  15         uint32_t ipaddr;              /* the IP address of the shortcut    */
  16         int type;                     /* ingress or egress                 */
  17 };
  18
  19 typedef struct in_ctrl_info {
  20         uint8_t   Last_NHRP_CIE_code;
  21         uint8_t   Last_Q2931_cause_value;
  22         uint8_t   eg_MPC_ATM_addr[ATM_ESA_LEN];
  23         uint32_t  tag;
  24         uint32_t  in_dst_ip;      /* IP address this ingress MPC sends packets to */
  25         uint16_t  holding_time;
  26         uint32_t  request_id;
  27 } in_ctrl_info;
  28
  29 typedef struct eg_ctrl_info {
  30         uint8_t   DLL_header[256];
  31         uint8_t   DH_length;
  32         uint32_t  cache_id;
  33         uint32_t  tag;
  34         uint32_t  mps_ip;
  35         uint32_t  eg_dst_ip;      /* IP address to which ingress MPC sends packets */
  36         uint8_t   in_MPC_data_ATM_addr[ATM_ESA_LEN];
  37         uint16_t  holding_time;
  38 } eg_ctrl_info;
  39
  40 struct mpc_parameters{
  41         uint16_t mpc_p1;   /* Shortcut-Setup Frame Count    */
  42         uint16_t mpc_p2;   /* Shortcut-Setup Frame Time     */
  43         uint8_t mpc_p3[8]; /* Flow-detection Protocols      */
  44         uint16_t mpc_p4;   /* MPC Initial Retry Time        */
  45         uint16_t mpc_p5;   /* MPC Retry Time Maximum        */
  46         uint16_t mpc_p6;   /* Hold Down Time                */
  47 };
  48
  49 struct k_message{
  50         uint16_t type;
  51         uint32_t ip_mask;
  52         uint8_t  MPS_ctrl[ATM_ESA_LEN];
  53         union {
  54                 in_ctrl_info in_info;
  55                 eg_ctrl_info eg_info;
  56                 struct mpc_parameters params;
  57         } content;
  58         struct atm_qos qos;
  59 };
  60
  61 struct llc_snap_hdr { /* RFC 1483 LLC/SNAP encapsulation for routed IP PDUs */
  62         uint8_t  dsap;    /* Destination Service Access Point (0xAA)     */
  63         uint8_t  ssap;    /* Source Service Access Point      (0xAA)     */
  64         uint8_t  ui;      /* Unnumbered Information           (0x03)     */
  65         uint8_t  org[3];  /* Organizational identification    (0x000000) */
  66         uint8_t  type[2]; /* Ether type (for IP)              (0x0800)   */
  67 };
  68
  69 /* TLVs this MPC recognizes */
  70 #define TLV_MPOA_DEVICE_TYPE         0x00a03e2a
  71
  72 /* MPOA device types in MPOA Device Type TLV */
  73 #define NON_MPOA    0
  74 #define MPS         1
  75 #define MPC         2
  76 #define MPS_AND_MPC 3
  77
  78
  79 /* MPC parameter defaults */
  80
  81 #define MPC_P1 10  /* Shortcut-Setup Frame Count  */
  82 #define MPC_P2 1   /* Shortcut-Setup Frame Time   */
  83 #define MPC_P3 0   /* Flow-detection Protocols    */
  84 #define MPC_P4 5   /* MPC Initial Retry Time      */
  85 #define MPC_P5 40  /* MPC Retry Time Maximum      */
  86 #define MPC_P6 160 /* Hold Down Time              */
  87 #define HOLDING_TIME_DEFAULT 1200 /* same as MPS-p7 */
  88
  89 /* MPC constants */
  90
  91 #define MPC_C1 2   /* Retry Time Multiplier       */
  92 #define MPC_C2 60  /* Initial Keep-Alive Lifetime */
  93
  94 /* Message types - to MPOA daemon */
  95
  96 #define SND_MPOA_RES_RQST    201
  97 #define SET_MPS_CTRL_ADDR    202
  98 #define SND_MPOA_RES_RTRY    203 /* Different type in a retry due to req id         */
  99 #define STOP_KEEP_ALIVE_SM   204
 100 #define EGRESS_ENTRY_REMOVED 205
 101 #define SND_EGRESS_PURGE     206
 102 #define DIE                  207 /* tell the daemon to exit()                       */
 103 #define DATA_PLANE_PURGE     208 /* Data plane purge because of egress cache hit miss or dead MPS */
 104 #define OPEN_INGRESS_SVC     209
 105
 106 /* Message types - from MPOA daemon */
 107
 108 #define MPOA_TRIGGER_RCVD     101
 109 #define MPOA_RES_REPLY_RCVD   102
 110 #define INGRESS_PURGE_RCVD    103
 111 #define EGRESS_PURGE_RCVD     104
 112 #define MPS_DEATH             105
 113 #define CACHE_IMPOS_RCVD      106
 114 #define SET_MPC_CTRL_ADDR     107 /* Our MPC's control ATM address   */
 115 #define SET_MPS_MAC_ADDR      108
 116 #define CLEAN_UP_AND_EXIT     109
 117 #define SET_MPC_PARAMS        110 /* MPC configuration parameters    */
 118
 119 /* Message types - bidirectional */
 120
 121 #define RELOAD                301 /* kill -HUP the daemon for reload */
 122
 123 #endif /* _ATMMPC_H_ */
 124