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- /******************************************************************************
- *
- * (C)Copyright 1998,1999 SysKonnect,
- * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * The information in this file is provided "AS IS" without warranty.
- *
- ******************************************************************************/
- /*
- * Synchronous Bandwith Allocation (SBA) structs
- */
- #ifndef _SBA_
- #define _SBA_
- #include "h/mbuf.h"
- #include "h/sba_def.h"
- #ifdef SBA
- /* Timer Cell Template */
- struct timer_cell {
- struct timer_cell *next_ptr ;
- struct timer_cell *prev_ptr ;
- u_long start_time ;
- struct s_sba_node_vars *node_var ;
- } ;
- /*
- * Node variables
- */
- struct s_sba_node_vars {
- u_char change_resp_flag ;
- u_char report_resp_flag ;
- u_char change_req_flag ;
- u_char report_req_flag ;
- long change_amount ;
- long node_overhead ;
- long node_payload ;
- u_long node_status ;
- u_char deallocate_status ;
- u_char timer_state ;
- u_short report_cnt ;
- long lastrep_req_tranid ;
- struct fddi_addr mac_address ;
- struct s_sba_sessions *node_sessions ;
- struct timer_cell timer ;
- } ;
- /*
- * Session variables
- */
- struct s_sba_sessions {
- u_long deallocate_status ;
- long session_overhead ;
- u_long min_segment_size ;
- long session_payload ;
- u_long session_status ;
- u_long sba_category ;
- long lastchg_req_tranid ;
- u_short session_id ;
- u_char class ;
- u_char fddi2 ;
- u_long max_t_neg ;
- struct s_sba_sessions *next_session ;
- } ;
- struct s_sba {
- struct s_sba_node_vars node[MAX_NODES] ;
- struct s_sba_sessions session[MAX_SESSIONS] ;
- struct s_sba_sessions *free_session ; /* points to the first */
- /* free session */
- struct timer_cell *tail_timer ; /* points to the last timer cell */
- /*
- * variables for allocation actions
- */
- long total_payload ; /* Total Payload */
- long total_overhead ; /* Total Overhead */
- long sba_allocatable ; /* allocatable sync bandwidth */
- /*
- * RAF message receive parameters
- */
- long msg_path_index ; /* Path Type */
- long msg_sba_pl_req ; /* Payload Request */
- long msg_sba_ov_req ; /* Overhead Request */
- long msg_mib_pl ; /* Current Payload for this Path */
- long msg_mib_ov ; /* Current Overhead for this Path*/
- long msg_category ; /* Category of the Allocation */
- u_long msg_max_t_neg ; /* longest T_Neg acceptable */
- u_long msg_min_seg_siz ; /* minimum segement size */
- struct smt_header *sm ; /* points to the rec message */
- struct fddi_addr *msg_alloc_addr ; /* Allocation Address */
- /*
- * SBA variables
- */
- u_long sba_t_neg ; /* holds the last T_NEG */
- long sba_max_alloc ; /* the parsed value of SBAAvailable */
- /*
- * SBA state machine variables
- */
- short sba_next_state ; /* the next state of the SBA */
- char sba_command ; /* holds the execuded SBA cmd */
- u_char sba_available ; /* parsed value after possible check */
- } ;
- #endif /* SBA */
- /*
- * variables for the End Station Support
- */
- struct s_ess {
- /*
- * flags and counters
- */
- u_char sync_bw_available ; /* is set if sync bw is allocated */
- u_char local_sba_active ; /* set when a local sba is available */
- char raf_act_timer_poll ; /* activate the timer to send allc req */
- char timer_count ; /* counts every timer function call */
- SMbuf *sba_reply_pend ; /* local reply for the sba is pending */
- /*
- * variables for the ess bandwidth control
- */
- long sync_bw ; /* holds the allocaed sync bw */
- u_long alloc_trans_id ; /* trans id of the last alloc req */
- } ;
- #endif
