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/*

 * ATM Lan Emulation Daemon driver interface

 *

 * Marko Kiiskila <mkiiskila@yahoo.com>

 */

#ifndef _ATMLEC_H_

#define _ATMLEC_H_

#include <linux/atmapi.h>

#include <linux/atmioc.h>

#include <linux/atm.h>

#include <linux/if_ether.h>

/* ATM lec daemon control socket */

#define ATMLEC_CTRL     _IO('a', ATMIOC_LANE)

#define ATMLEC_DATA     _IO('a', ATMIOC_LANE+1)

#define ATMLEC_MCAST    _IO('a', ATMIOC_LANE+2)

/* Maximum number of LEC interfaces (tweakable) */

#define MAX_LEC_ITF 48

/*

 * From the total of MAX_LEC_ITF, last NUM_TR_DEVS are reserved for Token Ring.

 * E.g. if MAX_LEC_ITF = 48 and NUM_TR_DEVS = 8, then lec0-lec39 are for

 * Ethernet ELANs and lec40-lec47 are for Token Ring ELANS.

 */

#define NUM_TR_DEVS 8

typedef enum {

        l_set_mac_addr,

        l_del_mac_addr,

        l_svc_setup,

        l_addr_delete,

        l_topology_change,

        l_flush_complete,

        l_arp_update,

        l_narp_req,             /* LANE2 mandates the use of this */

        l_config,

        l_flush_tran_id,

        l_set_lecid,

        l_arp_xmt,

        l_rdesc_arp_xmt,

        l_associate_req,

        l_should_bridge         /* should we bridge this MAC? */

} atmlec_msg_type;

#define ATMLEC_MSG_TYPE_MAX l_should_bridge

struct atmlec_config_msg {

        unsigned int maximum_unknown_frame_count;

        unsigned int max_unknown_frame_time;

        unsigned short max_retry_count;

        unsigned int aging_time;

        unsigned int forward_delay_time;

        unsigned int arp_response_time;

        unsigned int flush_timeout;

        unsigned int path_switching_delay;

        unsigned int lane_version;      /* LANE2: 1 for LANEv1, 2 for LANEv2 */

        int mtu;

        int is_proxy;

};

struct atmlec_msg {

        atmlec_msg_type type;

        int sizeoftlvs;         /* LANE2: if != 0, tlvs follow */

        union {

                struct {

                        unsigned char mac_addr[ETH_ALEN];

                        unsigned char atm_addr[ATM_ESA_LEN];

                        unsigned int flag;      /*

                                                 * Topology_change flag,

                                                 * remoteflag, permanent flag,

                                                 * lecid, transaction id

                                                 */

                        unsigned int targetless_le_arp; /* LANE2 */

                        unsigned int no_source_le_narp; /* LANE2 */

                } normal;

                struct atmlec_config_msg config;

                struct {

                        uint16_t lec_id;                        /* requestor lec_id  */

                        uint32_t tran_id;                       /* transaction id    */

                        unsigned char mac_addr[ETH_ALEN];       /* dst mac addr      */

                        unsigned char atm_addr[ATM_ESA_LEN];    /* reqestor ATM addr */

                } proxy;        /*

                                 * For mapping LE_ARP requests to responses. Filled by

                                 * zeppelin, returned by kernel. Used only when proxying

                                 */

        } content;

} __ATM_API_ALIGN;

struct atmlec_ioc {

        int dev_num;

        unsigned char atm_addr[ATM_ESA_LEN];

        unsigned char receive;  /* 1= receive vcc, 0 = send vcc */

};

#endif /* _ATMLEC_H_ */