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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/******************************************************************************3 *4 * (C)Copyright 1998,1999 SysKonnect,5 * a business unit of Schneider & Koch & Co. Datensysteme GmbH.6 *7 * The information in this file is provided "AS IS" without warranty.8 *9 ******************************************************************************/10 11/*12 * Synchronous Bandwidth Allocation (SBA) structs13 */14 15#ifndef _SBA_16#define _SBA_17 18#include "mbuf.h"19#include "sba_def.h"20 21#ifdef SBA22 23/* Timer Cell Template */24struct timer_cell {25 struct timer_cell *next_ptr ;26 struct timer_cell *prev_ptr ;27 u_long start_time ;28 struct s_sba_node_vars *node_var ;29} ;30 31/*32 * Node variables33 */34struct s_sba_node_vars {35 u_char change_resp_flag ;36 u_char report_resp_flag ;37 u_char change_req_flag ;38 u_char report_req_flag ;39 long change_amount ;40 long node_overhead ;41 long node_payload ;42 u_long node_status ;43 u_char deallocate_status ;44 u_char timer_state ;45 u_short report_cnt ;46 long lastrep_req_tranid ;47 struct fddi_addr mac_address ;48 struct s_sba_sessions *node_sessions ;49 struct timer_cell timer ;50} ;51 52/*53 * Session variables54 */55struct s_sba_sessions {56 u_long deallocate_status ;57 long session_overhead ;58 u_long min_segment_size ;59 long session_payload ;60 u_long session_status ;61 u_long sba_category ;62 long lastchg_req_tranid ;63 u_short session_id ;64 u_char class ;65 u_char fddi2 ;66 u_long max_t_neg ;67 struct s_sba_sessions *next_session ;68} ;69 70struct s_sba {71 72 struct s_sba_node_vars node[MAX_NODES] ;73 struct s_sba_sessions session[MAX_SESSIONS] ;74 75 struct s_sba_sessions *free_session ; /* points to the first */76 /* free session */77 78 struct timer_cell *tail_timer ; /* points to the last timer cell */79 80 /*81 * variables for allocation actions82 */83 long total_payload ; /* Total Payload */84 long total_overhead ; /* Total Overhead */85 long sba_allocatable ; /* allocatable sync bandwidth */86 87 /*88 * RAF message receive parameters89 */90 long msg_path_index ; /* Path Type */91 long msg_sba_pl_req ; /* Payload Request */92 long msg_sba_ov_req ; /* Overhead Request */93 long msg_mib_pl ; /* Current Payload for this Path */94 long msg_mib_ov ; /* Current Overhead for this Path*/95 long msg_category ; /* Category of the Allocation */96 u_long msg_max_t_neg ; /* longest T_Neg acceptable */97 u_long msg_min_seg_siz ; /* minimum segement size */98 struct smt_header *sm ; /* points to the rec message */99 struct fddi_addr *msg_alloc_addr ; /* Allocation Address */100 101 /*102 * SBA variables103 */104 u_long sba_t_neg ; /* holds the last T_NEG */105 long sba_max_alloc ; /* the parsed value of SBAAvailable */ 106 107 /*108 * SBA state machine variables109 */110 short sba_next_state ; /* the next state of the SBA */111 char sba_command ; /* holds the execuded SBA cmd */112 u_char sba_available ; /* parsed value after possible check */113} ;114 115#endif /* SBA */116 117 /*118 * variables for the End Station Support119 */120struct s_ess {121 122 /*123 * flags and counters124 */125 u_char sync_bw_available ; /* is set if sync bw is allocated */126 u_char local_sba_active ; /* set when a local sba is available */127 char raf_act_timer_poll ; /* activate the timer to send allc req */128 char timer_count ; /* counts every timer function call */129 130 SMbuf *sba_reply_pend ; /* local reply for the sba is pending */131 132 /*133 * variables for the ess bandwidth control134 */135 long sync_bw ; /* holds the allocaed sync bw */136 u_long alloc_trans_id ; /* trans id of the last alloc req */137} ;138#endif139