Home | History | Annotate | Download | only in linux
      1 /*
      2  * ATM Lan Emulation Daemon driver interface
      3  *
      4  * Marko Kiiskila <mkiiskila (at) yahoo.com>
      5  */
      6 
      7 #ifndef _ATMLEC_H_
      8 #define _ATMLEC_H_
      9 
     10 #include <linux/atmapi.h>
     11 #include <linux/atmioc.h>
     12 #include <linux/atm.h>
     13 #include <linux/if_ether.h>
     14 
     15 /* ATM lec daemon control socket */
     16 #define ATMLEC_CTRL	_IO('a', ATMIOC_LANE)
     17 #define ATMLEC_DATA	_IO('a', ATMIOC_LANE+1)
     18 #define ATMLEC_MCAST	_IO('a', ATMIOC_LANE+2)
     19 
     20 /* Maximum number of LEC interfaces (tweakable) */
     21 #define MAX_LEC_ITF 48
     22 
     23 /*
     24  * From the total of MAX_LEC_ITF, last NUM_TR_DEVS are reserved for Token Ring.
     25  * E.g. if MAX_LEC_ITF = 48 and NUM_TR_DEVS = 8, then lec0-lec39 are for
     26  * Ethernet ELANs and lec40-lec47 are for Token Ring ELANS.
     27  */
     28 #define NUM_TR_DEVS 8
     29 
     30 typedef enum {
     31 	l_set_mac_addr,
     32 	l_del_mac_addr,
     33 	l_svc_setup,
     34 	l_addr_delete,
     35 	l_topology_change,
     36 	l_flush_complete,
     37 	l_arp_update,
     38 	l_narp_req,		/* LANE2 mandates the use of this */
     39 	l_config,
     40 	l_flush_tran_id,
     41 	l_set_lecid,
     42 	l_arp_xmt,
     43 	l_rdesc_arp_xmt,
     44 	l_associate_req,
     45 	l_should_bridge		/* should we bridge this MAC? */
     46 } atmlec_msg_type;
     47 
     48 #define ATMLEC_MSG_TYPE_MAX l_should_bridge
     49 
     50 struct atmlec_config_msg {
     51 	unsigned int maximum_unknown_frame_count;
     52 	unsigned int max_unknown_frame_time;
     53 	unsigned short max_retry_count;
     54 	unsigned int aging_time;
     55 	unsigned int forward_delay_time;
     56 	unsigned int arp_response_time;
     57 	unsigned int flush_timeout;
     58 	unsigned int path_switching_delay;
     59 	unsigned int lane_version;	/* LANE2: 1 for LANEv1, 2 for LANEv2 */
     60 	int mtu;
     61 	int is_proxy;
     62 };
     63 
     64 struct atmlec_msg {
     65 	atmlec_msg_type type;
     66 	int sizeoftlvs;		/* LANE2: if != 0, tlvs follow */
     67 	union {
     68 		struct {
     69 			unsigned char mac_addr[ETH_ALEN];
     70 			unsigned char atm_addr[ATM_ESA_LEN];
     71 			unsigned int flag;	/*
     72 						 * Topology_change flag,
     73 						 * remoteflag, permanent flag,
     74 						 * lecid, transaction id
     75 						 */
     76 			unsigned int targetless_le_arp;	/* LANE2 */
     77 			unsigned int no_source_le_narp;	/* LANE2 */
     78 		} normal;
     79 		struct atmlec_config_msg config;
     80 		struct {
     81 			uint16_t lec_id;			/* requestor lec_id  */
     82 			uint32_t tran_id;			/* transaction id    */
     83 			unsigned char mac_addr[ETH_ALEN];	/* dst mac addr      */
     84 			unsigned char atm_addr[ATM_ESA_LEN];	/* reqestor ATM addr */
     85 		} proxy;	/*
     86 				 * For mapping LE_ARP requests to responses. Filled by
     87 				 * zeppelin, returned by kernel. Used only when proxying
     88 				 */
     89 	} content;
     90 } __ATM_API_ALIGN;
     91 
     92 struct atmlec_ioc {
     93 	int dev_num;
     94 	unsigned char atm_addr[ATM_ESA_LEN];
     95 	unsigned char receive;	/* 1= receive vcc, 0 = send vcc */
     96 };
     97 #endif /* _ATMLEC_H_ */
     98