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138 lines
3.5 KiB
138 lines
3.5 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/****************************************************************************** |
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* |
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* (C)Copyright 1998,1999 SysKonnect, |
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* a business unit of Schneider & Koch & Co. Datensysteme GmbH. |
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* |
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* The information in this file is provided "AS IS" without warranty. |
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* |
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******************************************************************************/ |
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/* |
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* Synchronous Bandwidth Allocation (SBA) structs |
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*/ |
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#ifndef _SBA_ |
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#define _SBA_ |
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#include "mbuf.h" |
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#include "sba_def.h" |
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#ifdef SBA |
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/* Timer Cell Template */ |
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struct timer_cell { |
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struct timer_cell *next_ptr ; |
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struct timer_cell *prev_ptr ; |
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u_long start_time ; |
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struct s_sba_node_vars *node_var ; |
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} ; |
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/* |
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* Node variables |
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*/ |
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struct s_sba_node_vars { |
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u_char change_resp_flag ; |
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u_char report_resp_flag ; |
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u_char change_req_flag ; |
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u_char report_req_flag ; |
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long change_amount ; |
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long node_overhead ; |
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long node_payload ; |
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u_long node_status ; |
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u_char deallocate_status ; |
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u_char timer_state ; |
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u_short report_cnt ; |
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long lastrep_req_tranid ; |
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struct fddi_addr mac_address ; |
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struct s_sba_sessions *node_sessions ; |
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struct timer_cell timer ; |
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} ; |
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/* |
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* Session variables |
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*/ |
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struct s_sba_sessions { |
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u_long deallocate_status ; |
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long session_overhead ; |
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u_long min_segment_size ; |
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long session_payload ; |
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u_long session_status ; |
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u_long sba_category ; |
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long lastchg_req_tranid ; |
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u_short session_id ; |
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u_char class ; |
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u_char fddi2 ; |
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u_long max_t_neg ; |
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struct s_sba_sessions *next_session ; |
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} ; |
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struct s_sba { |
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struct s_sba_node_vars node[MAX_NODES] ; |
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struct s_sba_sessions session[MAX_SESSIONS] ; |
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struct s_sba_sessions *free_session ; /* points to the first */ |
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/* free session */ |
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struct timer_cell *tail_timer ; /* points to the last timer cell */ |
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/* |
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* variables for allocation actions |
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*/ |
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long total_payload ; /* Total Payload */ |
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long total_overhead ; /* Total Overhead */ |
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long sba_allocatable ; /* allocatable sync bandwidth */ |
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/* |
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* RAF message receive parameters |
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*/ |
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long msg_path_index ; /* Path Type */ |
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long msg_sba_pl_req ; /* Payload Request */ |
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long msg_sba_ov_req ; /* Overhead Request */ |
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long msg_mib_pl ; /* Current Payload for this Path */ |
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long msg_mib_ov ; /* Current Overhead for this Path*/ |
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long msg_category ; /* Category of the Allocation */ |
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u_long msg_max_t_neg ; /* longest T_Neg acceptable */ |
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u_long msg_min_seg_siz ; /* minimum segement size */ |
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struct smt_header *sm ; /* points to the rec message */ |
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struct fddi_addr *msg_alloc_addr ; /* Allocation Address */ |
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/* |
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* SBA variables |
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*/ |
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u_long sba_t_neg ; /* holds the last T_NEG */ |
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long sba_max_alloc ; /* the parsed value of SBAAvailable */ |
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/* |
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* SBA state machine variables |
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*/ |
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short sba_next_state ; /* the next state of the SBA */ |
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char sba_command ; /* holds the execuded SBA cmd */ |
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u_char sba_available ; /* parsed value after possible check */ |
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} ; |
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#endif /* SBA */ |
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/* |
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* variables for the End Station Support |
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*/ |
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struct s_ess { |
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/* |
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* flags and counters |
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*/ |
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u_char sync_bw_available ; /* is set if sync bw is allocated */ |
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u_char local_sba_active ; /* set when a local sba is available */ |
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char raf_act_timer_poll ; /* activate the timer to send allc req */ |
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char timer_count ; /* counts every timer function call */ |
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SMbuf *sba_reply_pend ; /* local reply for the sba is pending */ |
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/* |
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* variables for the ess bandwidth control |
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*/ |
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long sync_bw ; /* holds the allocaed sync bw */ |
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u_long alloc_trans_id ; /* trans id of the last alloc req */ |
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} ; |
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#endif
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