diff options
Diffstat (limited to 'drivers/net/fddi/skfp/h/sba.h')
| -rw-r--r-- | drivers/net/fddi/skfp/h/sba.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/drivers/net/fddi/skfp/h/sba.h b/drivers/net/fddi/skfp/h/sba.h new file mode 100644 index 000000000000..35ddb44a1120 --- /dev/null +++ b/drivers/net/fddi/skfp/h/sba.h @@ -0,0 +1,142 @@ +/****************************************************************************** + * + * (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 Bandwidth Allocation (SBA) structs + */ + +#ifndef _SBA_ +#define _SBA_ + +#include "mbuf.h" +#include "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 |