1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef _ATMMPC_H_ 3#define _ATMMPC_H_ 4 5#include <linux/atmapi.h> 6#include <linux/atmioc.h> 7#include <linux/atm.h> 8#include <linux/types.h> 9 10#define ATMMPC_CTRL _IO('a', ATMIOC_MPOA) 11#define ATMMPC_DATA _IO('a', ATMIOC_MPOA+1) 12 13#define MPC_SOCKET_INGRESS 1 14#define MPC_SOCKET_EGRESS 2 15 16struct atmmpc_ioc { 17 int dev_num; 18 __be32 ipaddr; /* the IP address of the shortcut */ 19 int type; /* ingress or egress */ 20}; 21 22typedef struct in_ctrl_info { 23 __u8 Last_NHRP_CIE_code; 24 __u8 Last_Q2931_cause_value; 25 __u8 eg_MPC_ATM_addr[ATM_ESA_LEN]; 26 __be32 tag; 27 __be32 in_dst_ip; /* IP address this ingress MPC sends packets to */ 28 __u16 holding_time; 29 __u32 request_id; 30} in_ctrl_info; 31 32typedef struct eg_ctrl_info { 33 __u8 DLL_header[256]; 34 __u8 DH_length; 35 __be32 cache_id; 36 __be32 tag; 37 __be32 mps_ip; 38 __be32 eg_dst_ip; /* IP address to which ingress MPC sends packets */ 39 __u8 in_MPC_data_ATM_addr[ATM_ESA_LEN]; 40 __u16 holding_time; 41} eg_ctrl_info; 42 43struct mpc_parameters { 44 __u16 mpc_p1; /* Shortcut-Setup Frame Count */ 45 __u16 mpc_p2; /* Shortcut-Setup Frame Time */ 46 __u8 mpc_p3[8]; /* Flow-detection Protocols */ 47 __u16 mpc_p4; /* MPC Initial Retry Time */ 48 __u16 mpc_p5; /* MPC Retry Time Maximum */ 49 __u16 mpc_p6; /* Hold Down Time */ 50} ; 51 52struct k_message { 53 __u16 type; 54 __be32 ip_mask; 55 __u8 MPS_ctrl[ATM_ESA_LEN]; 56 union { 57 in_ctrl_info in_info; 58 eg_ctrl_info eg_info; 59 struct mpc_parameters params; 60 } content; 61 struct atm_qos qos; 62} __ATM_API_ALIGN; 63 64struct llc_snap_hdr { 65 /* RFC 1483 LLC/SNAP encapsulation for routed IP PDUs */ 66 __u8 dsap; /* Destination Service Access Point (0xAA) */ 67 __u8 ssap; /* Source Service Access Point (0xAA) */ 68 __u8 ui; /* Unnumbered Information (0x03) */ 69 __u8 org[3]; /* Organizational identification (0x000000) */ 70 __u8 type[2]; /* Ether type (for IP) (0x0800) */ 71}; 72 73/* TLVs this MPC recognizes */ 74#define TLV_MPOA_DEVICE_TYPE 0x00a03e2a 75 76/* MPOA device types in MPOA Device Type TLV */ 77#define NON_MPOA 0 78#define MPS 1 79#define MPC 2 80#define MPS_AND_MPC 3 81 82 83/* MPC parameter defaults */ 84 85#define MPC_P1 10 /* Shortcut-Setup Frame Count */ 86#define MPC_P2 1 /* Shortcut-Setup Frame Time */ 87#define MPC_P3 0 /* Flow-detection Protocols */ 88#define MPC_P4 5 /* MPC Initial Retry Time */ 89#define MPC_P5 40 /* MPC Retry Time Maximum */ 90#define MPC_P6 160 /* Hold Down Time */ 91#define HOLDING_TIME_DEFAULT 1200 /* same as MPS-p7 */ 92 93/* MPC constants */ 94 95#define MPC_C1 2 /* Retry Time Multiplier */ 96#define MPC_C2 60 /* Initial Keep-Alive Lifetime */ 97 98/* Message types - to MPOA daemon */ 99 100#define SND_MPOA_RES_RQST 201 101#define SET_MPS_CTRL_ADDR 202 102#define SND_MPOA_RES_RTRY 203 /* Different type in a retry due to req id */ 103#define STOP_KEEP_ALIVE_SM 204 104#define EGRESS_ENTRY_REMOVED 205 105#define SND_EGRESS_PURGE 206 106#define DIE 207 /* tell the daemon to exit() */ 107#define DATA_PLANE_PURGE 208 /* Data plane purge because of egress cache hit miss or dead MPS */ 108#define OPEN_INGRESS_SVC 209 109 110/* Message types - from MPOA daemon */ 111 112#define MPOA_TRIGGER_RCVD 101 113#define MPOA_RES_REPLY_RCVD 102 114#define INGRESS_PURGE_RCVD 103 115#define EGRESS_PURGE_RCVD 104 116#define MPS_DEATH 105 117#define CACHE_IMPOS_RCVD 106 118#define SET_MPC_CTRL_ADDR 107 /* Our MPC's control ATM address */ 119#define SET_MPS_MAC_ADDR 108 120#define CLEAN_UP_AND_EXIT 109 121#define SET_MPC_PARAMS 110 /* MPC configuration parameters */ 122 123/* Message types - bidirectional */ 124 125#define RELOAD 301 /* kill -HUP the daemon for reload */ 126 127#endif /* _ATMMPC_H_ */ 128