include/linux/atmmpc.h

   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
   8 #define ATMMPC_CTRL _IO('a', ATMIOC_MPOA)
   9 #define ATMMPC_DATA _IO('a', ATMIOC_MPOA+1)
  10
  11 #define MPC_SOCKET_INGRESS 1
  12 #define MPC_SOCKET_EGRESS  2
  13
  14 struct atmmpc_ioc {
  15         int dev_num;
  16         __be32 ipaddr;              /* the IP address of the shortcut    */
  17         int type;                     /* ingress or egress                 */
  18 };
  19
  20 typedef struct in_ctrl_info {
  21         uint8_t   Last_NHRP_CIE_code;
  22         uint8_t   Last_Q2931_cause_value;
  23         uint8_t   eg_MPC_ATM_addr[ATM_ESA_LEN];
  24         __be32  tag;
  25         __be32  in_dst_ip;      /* IP address this ingress MPC sends packets to */
  26         uint16_t  holding_time;
  27         uint32_t  request_id;
  28 } in_ctrl_info;
  29
  30 typedef struct eg_ctrl_info {
  31         uint8_t   DLL_header[256];
  32         uint8_t   DH_length;
  33         __be32  cache_id;
  34         __be32  tag;
  35         __be32  mps_ip;
  36         __be32  eg_dst_ip;      /* IP address to which ingress MPC sends packets */
  37         uint8_t   in_MPC_data_ATM_addr[ATM_ESA_LEN];
  38         uint16_t  holding_time;
  39 } eg_ctrl_info;
  40
  41 struct mpc_parameters {
  42         uint16_t mpc_p1;   /* Shortcut-Setup Frame Count    */
  43         uint16_t mpc_p2;   /* Shortcut-Setup Frame Time     */
  44         uint8_t mpc_p3[8]; /* Flow-detection Protocols      */
  45         uint16_t mpc_p4;   /* MPC Initial Retry Time        */
  46         uint16_t mpc_p5;   /* MPC Retry Time Maximum        */
  47         uint16_t mpc_p6;   /* Hold Down Time                */
  48 } ;
  49
  50 struct k_message {
  51         uint16_t type;
  52         __be32 ip_mask;
  53         uint8_t  MPS_ctrl[ATM_ESA_LEN];
  54         union {
  55                 in_ctrl_info in_info;
  56                 eg_ctrl_info eg_info;
  57                 struct mpc_parameters params;
  58         } content;
  59         struct atm_qos qos;
  60 } __ATM_API_ALIGN;
  61
  62 struct llc_snap_hdr {
  63         /* RFC 1483 LLC/SNAP encapsulation for routed IP PDUs */
  64         uint8_t  dsap;    /* Destination Service Access Point (0xAA)     */
  65         uint8_t  ssap;    /* Source Service Access Point      (0xAA)     */
  66         uint8_t  ui;      /* Unnumbered Information           (0x03)     */
  67         uint8_t  org[3];  /* Organizational identification    (0x000000) */
  68         uint8_t  type[2]; /* Ether type (for IP)              (0x0800)   */
  69 };
  70
  71 /* TLVs this MPC recognizes */
  72 #define TLV_MPOA_DEVICE_TYPE         0x00a03e2a
  73
  74 /* MPOA device types in MPOA Device Type TLV */
  75 #define NON_MPOA    0
  76 #define MPS         1
  77 #define MPC         2
  78 #define MPS_AND_MPC 3
  79
  80
  81 /* MPC parameter defaults */
  82
  83 #define MPC_P1 10  /* Shortcut-Setup Frame Count  */
  84 #define MPC_P2 1   /* Shortcut-Setup Frame Time   */
  85 #define MPC_P3 0   /* Flow-detection Protocols    */
  86 #define MPC_P4 5   /* MPC Initial Retry Time      */
  87 #define MPC_P5 40  /* MPC Retry Time Maximum      */
  88 #define MPC_P6 160 /* Hold Down Time              */
  89 #define HOLDING_TIME_DEFAULT 1200 /* same as MPS-p7 */
  90
  91 /* MPC constants */
  92
  93 #define MPC_C1 2   /* Retry Time Multiplier       */
  94 #define MPC_C2 60  /* Initial Keep-Alive Lifetime */
  95
  96 /* Message types - to MPOA daemon */
  97
  98 #define SND_MPOA_RES_RQST    201
  99 #define SET_MPS_CTRL_ADDR    202
 100 #define SND_MPOA_RES_RTRY    203 /* Different type in a retry due to req id         */
 101 #define STOP_KEEP_ALIVE_SM   204
 102 #define EGRESS_ENTRY_REMOVED 205
 103 #define SND_EGRESS_PURGE     206
 104 #define DIE                  207 /* tell the daemon to exit()                       */
 105 #define DATA_PLANE_PURGE     208 /* Data plane purge because of egress cache hit miss or dead MPS */
 106 #define OPEN_INGRESS_SVC     209
 107
 108 /* Message types - from MPOA daemon */
 109
 110 #define MPOA_TRIGGER_RCVD     101
 111 #define MPOA_RES_REPLY_RCVD   102
 112 #define INGRESS_PURGE_RCVD    103
 113 #define EGRESS_PURGE_RCVD     104
 114 #define MPS_DEATH             105
 115 #define CACHE_IMPOS_RCVD      106
 116 #define SET_MPC_CTRL_ADDR     107 /* Our MPC's control ATM address   */
 117 #define SET_MPS_MAC_ADDR      108
 118 #define CLEAN_UP_AND_EXIT     109
 119 #define SET_MPC_PARAMS        110 /* MPC configuration parameters    */
 120
 121 /* Message types - bidirectional */
 122
 123 #define RELOAD                301 /* kill -HUP the daemon for reload */
 124
 125 #endif /* _ATMMPC_H_ */