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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ATMMPC_H_
#define _ATMMPC_H_
#include <linux/atmapi.h>
#include <linux/atmioc.h>
#include <linux/atm.h>
#include <linux/types.h>
#define ATMMPC_CTRL _IO('a', ATMIOC_MPOA)
#define ATMMPC_DATA _IO('a', ATMIOC_MPOA+1)
#define MPC_SOCKET_INGRESS 1
#define MPC_SOCKET_EGRESS 2
struct atmmpc_ioc {
int dev_num;
__be32 ipaddr; /* the IP address of the shortcut */
int type; /* ingress or egress */
};
typedef struct in_ctrl_info {
__u8 Last_NHRP_CIE_code;
__u8 Last_Q2931_cause_value;
__u8 eg_MPC_ATM_addr[ATM_ESA_LEN];
__be32 tag;
__be32 in_dst_ip; /* IP address this ingress MPC sends packets to */
__u16 holding_time;
__u32 request_id;
} in_ctrl_info;
typedef struct eg_ctrl_info {
__u8 DLL_header[256];
__u8 DH_length;
__be32 cache_id;
__be32 tag;
__be32 mps_ip;
__be32 eg_dst_ip; /* IP address to which ingress MPC sends packets */
__u8 in_MPC_data_ATM_addr[ATM_ESA_LEN];
__u16 holding_time;
} eg_ctrl_info;
struct mpc_parameters {
__u16 mpc_p1; /* Shortcut-Setup Frame Count */
__u16 mpc_p2; /* Shortcut-Setup Frame Time */
__u8 mpc_p3[8]; /* Flow-detection Protocols */
__u16 mpc_p4; /* MPC Initial Retry Time */
__u16 mpc_p5; /* MPC Retry Time Maximum */
__u16 mpc_p6; /* Hold Down Time */
} ;
struct k_message {
__u16 type;
__be32 ip_mask;
__u8 MPS_ctrl[ATM_ESA_LEN];
union {
in_ctrl_info in_info;
eg_ctrl_info eg_info;
struct mpc_parameters params;
} content;
struct atm_qos qos;
} __ATM_API_ALIGN;
struct llc_snap_hdr {
/* RFC 1483 LLC/SNAP encapsulation for routed IP PDUs */
__u8 dsap; /* Destination Service Access Point (0xAA) */
__u8 ssap; /* Source Service Access Point (0xAA) */
__u8 ui; /* Unnumbered Information (0x03) */
__u8 org[3]; /* Organizational identification (0x000000) */
__u8 type[2]; /* Ether type (for IP) (0x0800) */
};
/* TLVs this MPC recognizes */
#define TLV_MPOA_DEVICE_TYPE 0x00a03e2a
/* MPOA device types in MPOA Device Type TLV */
#define NON_MPOA 0
#define MPS 1
#define MPC 2
#define MPS_AND_MPC 3
/* MPC parameter defaults */
#define MPC_P1 10 /* Shortcut-Setup Frame Count */
#define MPC_P2 1 /* Shortcut-Setup Frame Time */
#define MPC_P3 0 /* Flow-detection Protocols */
#define MPC_P4 5 /* MPC Initial Retry Time */
#define MPC_P5 40 /* MPC Retry Time Maximum */
#define MPC_P6 160 /* Hold Down Time */
#define HOLDING_TIME_DEFAULT 1200 /* same as MPS-p7 */
/* MPC constants */
#define MPC_C1 2 /* Retry Time Multiplier */
#define MPC_C2 60 /* Initial Keep-Alive Lifetime */
/* Message types - to MPOA daemon */
#define SND_MPOA_RES_RQST 201
#define SET_MPS_CTRL_ADDR 202
#define SND_MPOA_RES_RTRY 203 /* Different type in a retry due to req id */
#define STOP_KEEP_ALIVE_SM 204
#define EGRESS_ENTRY_REMOVED 205
#define SND_EGRESS_PURGE 206
#define DIE 207 /* tell the daemon to exit() */
#define DATA_PLANE_PURGE 208 /* Data plane purge because of egress cache hit miss or dead MPS */
#define OPEN_INGRESS_SVC 209
/* Message types - from MPOA daemon */
#define MPOA_TRIGGER_RCVD 101
#define MPOA_RES_REPLY_RCVD 102
#define INGRESS_PURGE_RCVD 103
#define EGRESS_PURGE_RCVD 104
#define MPS_DEATH 105
#define CACHE_IMPOS_RCVD 106
#define SET_MPC_CTRL_ADDR 107 /* Our MPC's control ATM address */
#define SET_MPS_MAC_ADDR 108
#define CLEAN_UP_AND_EXIT 109
#define SET_MPC_PARAMS 110 /* MPC configuration parameters */
/* Message types - bidirectional */
#define RELOAD 301 /* kill -HUP the daemon for reload */
#endif /* _ATMMPC_H_ */