include/linux/atmlec.h

   1 /*
   2  * ATM Lan Emulation Daemon driver interface
   3  *
   4  * Marko Kiiskila <mkiiskila@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_ */