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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 114#define MPC_SOCKET_EGRESS 215 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 078#define MPS 179#define MPC 280#define MPS_AND_MPC 381 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 201101#define SET_MPS_CTRL_ADDR 202102#define SND_MPOA_RES_RTRY 203 /* Different type in a retry due to req id */103#define STOP_KEEP_ALIVE_SM 204104#define EGRESS_ENTRY_REMOVED 205105#define SND_EGRESS_PURGE 206106#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 209109 110/* Message types - from MPOA daemon */111 112#define MPOA_TRIGGER_RCVD 101113#define MPOA_RES_REPLY_RCVD 102114#define INGRESS_PURGE_RCVD 103115#define EGRESS_PURGE_RCVD 104116#define MPS_DEATH 105117#define CACHE_IMPOS_RCVD 106118#define SET_MPC_CTRL_ADDR 107 /* Our MPC's control ATM address */119#define SET_MPS_MAC_ADDR 108120#define CLEAN_UP_AND_EXIT 109121#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