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Diffstat (limited to 'doc/manuals/chapters/code-architecture.adoc')
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diff --git a/doc/manuals/chapters/code-architecture.adoc b/doc/manuals/chapters/code-architecture.adoc new file mode 100644 index 00000000..c3c0c709 --- /dev/null +++ b/doc/manuals/chapters/code-architecture.adoc @@ -0,0 +1,71 @@ +[[code_architecture]] +== Code Architecture + +[[fig-code-architecture-general]] +.General overview of main OsmoTRX components +[graphviz] +---- +digraph hierarchy { +node[shape=record,style=filled,fillcolor=gray95] +edge[dir=back, arrowtail=empty] + +PCU[label = "{gprs_pcu|+ pcu_sock_state\l+ bssgp\l+ bts_list[]\l}"] +BTS[label = "{gprs_rlcmac_bts|+ gsm_sysinfo\l+ trx_list[]\l+ ms_list[]\l}"] +TRX[label = "{gprs_rlcmac_bts_trx|+ul_tbfs[]\l+dl_tbfs[]\l}"] +PDCH[label = "{gprs_rlcmac_pdch|+ is_enabled\l+ pdch_ulc\l+ assigned_usf_mask\l+ assigned_tfi_mask_(dl,ul)\l+ tbfs_dl[]\l+ tbfs_ul[]\l+ pagings[]\l}"] +ULC[label = "{pdch_ulc|+ registered_polls[]\l}"] +ULC_NODE[label = "{pdch_ulc_node|+ fn\l+ type\l}"] +ULC_NODE_TBF_USF[label = "{pdch_ulc_node_tbf_usf|+ ul_tbf\l}"] +ULC_NODE_TBF_POLL[label = "{pdch_ulc_node_tbf_poll|+ poll_tbf (UL/DL)\l+ reason\l}"] +ULC_NODE_SBA[label = "{pdch_ulc_node_sba|+ sba\l}"] +MS[label = "{GprsMs|+ imsi, tlli, ta...\l+ refcount\l+ current_trx\l+ first_common_ts\l+ llc_queue\l}"] +TBF[label = "{gprs_rlcmac_tbf|+ tfi\l+ egprs_enabled\l+ control_ts\l+ pdch[]\l+ ul_ass_fsm\l+ dl_ass_fsm\l+ window\l+ llc_frame\l+ rlc_blocks\l}"] +UL_TBF[label = "{gprs_rlcmac_ul_tbf|+ state_fsm\l+ ul_ack_fsm\l+ usf[]\l}"] +DL_TBF[label = "{gprs_rlcmac_dl_tbf|+ state_fsm\l}"] +SBA[label = "{gprs_rlcmac_sba|+ pdch\l+ fn\l+ ta\l}"] +RLC_WINDOW[label = "{gprs_rlcmac_window|+ sns\l+ ws\l}"] +RLC_WINDOW_UL[label = "{gprs_rlcmac_window_ul|+ v_r\l+ v_q\l+ v_n[]\l}"] +RLC_WINDOW_DL[label = "{gprs_rlcmac_window_dl|+ v_s\l+ v_a\l+ v_b[]\l}"] +LLC_QUEUE[label = "{gprs_llc_queue|+ prio_queues[]\l}"] +LLC_PRIO_QUEUE[label = "{gprs_llc_prio_queue|+ codel_state\l+ priority\l+ frames[]\l}"] +LLC_FRAME[label = "{gprs_llc_frame|+ payload[]\l+ priority\l}"] +RLC_BLOCK[label = "{gprs_rlcmac_rlc_block|...}"] + +PCU -> BTS [headlabel="*", taillabel="1"] +BTS -> TRX [headlabel="0..8", taillabel="1"] +BTS -> MS [headlabel="*", taillabel="1"] +TRX -> PDCH [headlabel="0..8", taillabel="1"] + +PDCH -> ULC [headlabel="1", taillabel="0..1"] +ULC -> ULC_NODE [headlabel="*", taillabel="1"] +ULC_NODE -> ULC_NODE_TBF_USF [arrowtail=odiamond] +ULC_NODE -> ULC_NODE_TBF_POLL [arrowtail=odiamond] +ULC_NODE -> ULC_NODE_SBA [arrowtail=odiamond] +ULC_NODE_SBA -> SBA[headlabel="1", taillabel="1"] + +TBF -> UL_TBF [arrowtail=odiamond] +TBF -> DL_TBF [arrowtail=odiamond] + +RLC_WINDOW -> RLC_WINDOW_UL [arrowtail=odiamond] +RLC_WINDOW -> RLC_WINDOW_DL [arrowtail=odiamond] + +MS -> TBF [headlabel="*", taillabel="1"] + +MS -> LLC_QUEUE [headlabel="1", taillabel="1"] +LLC_QUEUE -> LLC_PRIO_QUEUE [headlabel="*", taillabel="1"] +LLC_PRIO_QUEUE -> LLC_FRAME [headlabel="*", taillabel="1"] + +TBF -> RLC_WINDOW [headlabel="*", taillabel="1"] +TBF -> LLC_FRAME [headlabel="0..1", taillabel="1"] +TBF -> RLC_BLOCK [headlabel="*", taillabel="1"] + +TRX -> MS [headlabel="*", taillabel="1", style=dashed, arrowtail=none, label="assigned"] +TBF -> PDCH [headlabel="0..8", taillabel="1", style=dashed, arrowtail=none, label="assigned"] + +UL_TBF -> ULC_NODE_TBF_USF [style=dashed, arrowtail=none, label="registered"] +TBF -> ULC_NODE_TBF_POLL [style=dashed, arrowtail=none, label="registered"] + +TRX -> UL_TBF [headlabel="*", taillabel="1", style=dashed, label="assigned"] +TRX -> DL_TBF [headlabel="*", taillabel="1", style=dashed, label="assigned"] +} +---- |