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Neels Hofmeyr gerrit-no-reply at lists.osmocom.orgNeels Hofmeyr has uploaded this change for review. ( https://gerrit.osmocom.org/9667 Change subject: doc: update/fix FSM charts ...................................................................... doc: update/fix FSM charts Change-Id: I29e31b753e23a4207662e0e385a337e7df836f45 --- M doc/Makefile.am A doc/assignment-fsm.dot M doc/assignment.msc A doc/handover-inter-bsc-mo-fsm.dot A doc/handover-inter-bsc-mt-fsm.dot M doc/handover-inter-bsc-mt.msc A doc/handover-intra-bsc-fsm.dot M doc/handover.msc M doc/lchan-fsm.dot M doc/lchan.msc A doc/mgw-endpoint-fsm.dot M doc/ms-channel-request.msc 12 files changed, 185 insertions(+), 26 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/67/9667/1 diff --git a/doc/Makefile.am b/doc/Makefile.am index ca0470d..2a855eb 100644 --- a/doc/Makefile.am +++ b/doc/Makefile.am @@ -15,8 +15,13 @@ $(NULL) dot: \ + $(builddir)/assignment-fsm.png \ $(builddir)/timeslot-fsm.png \ $(builddir)/lchan-fsm.png \ + $(builddir)/mgw-endpoint-fsm.png \ + $(builddir)/handover-intra-bsc-fsm.png \ + $(builddir)/handover-inter-bsc-mo-fsm.png \ + $(builddir)/handover-inter-bsc-mt-fsm.png \ $(NULL) $(builddir)/%.png: $(srcdir)/%.msc diff --git a/doc/assignment-fsm.dot b/doc/assignment-fsm.dot new file mode 100644 index 0000000..90f7621 --- /dev/null +++ b/doc/assignment-fsm.dot @@ -0,0 +1,35 @@ +digraph G { +rankdir=TB; + + WAIT_LCHAN_ACTIVE + WAIT_RR_ASS_COMPLETE + WAIT_LCHAN_ESTABLISHED + WAIT_MGW_ENDPOINT_TO_MSC + terminate [shape=box] + + gscon [label="conn FSM",shape=box3d]; + gscon2 [label="conn FSM",shape=box3d]; + lchan [label="lchan FSM",shape=box3d]; + old_lchan [label="old lchan",shape=box3d]; + + invisible [style="invisible"] + invisible -> gscon [label="GSCON_EV_A_ASSIGNMENT_CMD",style=dashed] + invisible -> old_lchan [style=invisible,arrowhead=none] + + gscon -> WAIT_LCHAN_ACTIVE [label="assignment_fsm_start()",style=dashed] + WAIT_LCHAN_ACTIVE -> lchan [label="lchan_activate()\nFOR_ASSIGNMENT",style=dashed] + lchan -> WAIT_LCHAN_ACTIVE [label="ASSIGNMENT_EV_\nLCHAN_\nACTIVE,ERROR",style=dashed] + lchan -> WAIT_LCHAN_ESTABLISHED [label="ASSIGNMENT_EV_\nLCHAN_\nESTABLISHED,ERROR",style=dashed] + + WAIT_LCHAN_ACTIVE -> WAIT_RR_ASS_COMPLETE + + WAIT_RR_ASS_COMPLETE -> old_lchan [label="RR Assignment\nCommand",style=dashed,constraint=false] + lchan -> WAIT_RR_ASS_COMPLETE [label="RR Assignment\nComplete",style=dashed] + + WAIT_RR_ASS_COMPLETE -> WAIT_LCHAN_ESTABLISHED + + WAIT_LCHAN_ESTABLISHED -> WAIT_MGW_ENDPOINT_TO_MSC [label="TCH"] + WAIT_LCHAN_ESTABLISHED -> terminate [label="non-TCH"] + WAIT_MGW_ENDPOINT_TO_MSC -> terminate + terminate -> gscon2 [label="GSCON_EV_\nASSIGNMENT_END",style=dashed] +} diff --git a/doc/assignment.msc b/doc/assignment.msc index 9f10ea1..872161f 100644 --- a/doc/assignment.msc +++ b/doc/assignment.msc @@ -6,7 +6,7 @@ ms note mgw_msc [label="lchan allocation sequence for BSSMAP Assignment Request"]; bsc_gscon <= mgw_msc [label="BSSMAP Assignment Request"]; - bsc_gscon abox bsc_gscon [label="ST_ASSIGNMENT_\nWAIT_LCHAN"]; + bsc_gscon abox bsc_gscon [label="ST_ASSIGNMENT_\nWAIT_LCHAN\nT10?"]; bsc_lchan <- bsc_gscon [label="lchan_select_by_chan_mode(chan_mode)"]; |||; @@ -15,13 +15,13 @@ bsc_gscon abox bsc_gscon [label="ST_ACTIVE"]; ---; |||; - bsc_gscon box bsc_gscon [label="store lchan pointer in conn->lchan_for_assignment"]; + bsc_gscon box bsc_gscon [label="store lchan pointer in conn->assignment.new_lchan"]; bsc_lchan <- bsc_gscon [label="lchan_activate(FOR_ASSIGNMENT)"]; ...; |||; --- [label="on lchan FSM error or timeout"]; - bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; - bsc_gscon box bsc_gscon [label="'forget' all about conn->lchan_for_assignment"]; + bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ERROR"]; + bsc_gscon box bsc_gscon [label="'forget' all about conn->assignment.new_lchan"]; bsc_gscon => mgw_msc [label="BSSMAP Assignment Failure"]; bsc_gscon abox bsc_gscon [label="ST_ACTIVE"]; --- [label="END: 'on error'"]; @@ -49,9 +49,9 @@ bsc_gscon -> bsc_lchan [label="LCHAN_EV_MGW_ENDPOINT_ERROR"]; bsc_lchan note bsc_gscon [label="conn FSM timeout handler exits and relies on the lchan FSM signalling error, which should actually happen immediately:"]; - bsc_gscon <- bsc_lchan [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_gscon <- bsc_lchan [label="GSCON_EV_LCHAN_ERROR"]; bsc_gscon abox bsc_gscon [label="ST_ACTIVE"]; - bsc_gscon box bsc_gscon [label="'forget' all about conn->lchan_for_assignment"]; + bsc_gscon box bsc_gscon [label="'forget' all about conn->assignment.new_lchan"]; bsc_gscon => mgw_msc [label="BSSMAP Assignment Failure"]; --- [label="END: 'On Timeout'"]; ...; @@ -67,13 +67,13 @@ ...; bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ACTIVE"]; - bsc_gscon abox bsc_gscon [label="ST_ASSIGNMENT_\nWAIT_COMPLETE\nT10, 6s"]; + bsc_gscon abox bsc_gscon [label="ST_ASSIGNMENT_\nWAIT_COMPLETE\nT10, 6s? T3107?"]; ms <= bsc_gscon [label="RR Assignment"]; ...; --- [label="On Timeout"]; bsc_gscon => mgw_msc [label="BSSMAP Assignment Failure"]; bsc_gscon -> bsc_lchan [label="LCHAN_EV_LCHAN_RELEASE"]; - bsc_gscon box bsc_gscon [label="'forget' all about conn->lchan_for_assignment"]; + bsc_gscon box bsc_gscon [label="'forget' all about conn->assignment.new_lchan"]; --- [label="IF assignment_created_mgw_endpoint == true"]; bsc_gscon -> bsc_mgcp [label="mgcp_conn_delete()"]; bsc_gscon note bsc_mgcp [label="If the MGW endpoint didn't exist before the Assignment, release @@ -84,7 +84,7 @@ ...; ms => bsc_gscon [label="RR Assignment Complete"]; bsc_gscon -> bsc_lchan [label="OLD lchan: LCHAN_EV_LCHAN_RELEASE"]; - bsc_gscon box bsc_gscon [label="conn->lchan = conn->lchan_for_assignment"]; + bsc_gscon box bsc_gscon [label="conn->lchan = conn->assignment.new_lchan"]; --- [label="IF: chan_mode a speech mode?"]; bsc_gscon abox bsc_gscon [label="ST_WAIT_MDCX_BTS"]; bsc_gscon -> bsc_mgcp [label="mgcp_conn_modify()"]; diff --git a/doc/handover-inter-bsc-mo-fsm.dot b/doc/handover-inter-bsc-mo-fsm.dot new file mode 100644 index 0000000..2832d0f --- /dev/null +++ b/doc/handover-inter-bsc-mo-fsm.dot @@ -0,0 +1,26 @@ +digraph G { +rankdir=TB; + + invisible [style=invisible] + invisible -> mo [label="Measurement Report\nincluding neighbor\nBSS ARFCN",style=dashed] + mo [label="inter-BSC MO HO",shape=box]; + msc [label="msc",shape=box3d]; + new_bsc [label="new BSC",shape=box3d] + lchan [label="lchan",shape=box3d] + term [label="terminate",shape=box]; + + mo -> WAIT_HO_COMMAND [label="handover_start()"] + WAIT_HO_COMMAND -> msc [label="BSSMAP Handover\nRequired",style=dashed] + msc -> new_bsc [label="BSSMAP Handover\nRequest",style=dashed] + new_bsc -> msc [label="BSSMAP Handover\nRequest Ack",style=dashed] + msc -> WAIT_HO_COMMAND [label="BSSMAP Handover\nCommand",style=dashed] + + WAIT_HO_COMMAND -> lchan [label="RR Handover\nCommand\nfrom new BSC",style=dashed] + + WAIT_HO_COMMAND -> WAIT_CLEAR + msc -> WAIT_CLEAR [label="BSSMAP Clear Command",style=dashed] + + WAIT_CLEAR -> term + + +} diff --git a/doc/handover-inter-bsc-mt-fsm.dot b/doc/handover-inter-bsc-mt-fsm.dot new file mode 100644 index 0000000..82e101a --- /dev/null +++ b/doc/handover-inter-bsc-mt-fsm.dot @@ -0,0 +1,42 @@ +digraph G { +rankdir=TB; + + mt [label="inter-BSC MT HO",shape=box]; + gscon [label="gscon FSM",shape=box3d]; + lchan [label="lchan FSM",shape=box3d]; + msc [label="msc",shape=box3d]; + old_bsc [label="old BSC",shape=box3d] + old_lchan [label="old lchan",shape=box3d] + term [label="terminate",shape=box]; + + invisible [style="invisible"] + + mt -> old_bsc [style=dashed] + old_bsc -> msc [label="BSSMAP Handover Required",style=dashed] + + invisible -> old_lchan [style=invisible,arrowhead=none] + msc -> gscon [label="BSSMAP Handover\nRequest",style=dashed] + gscon -> WAIT_LCHAN_ACTIVE [label="handover_start()",style=dashed] + WAIT_LCHAN_ACTIVE -> lchan [label="lchan_activate()\nFOR_HANDOVER",style=dashed] + lchan -> WAIT_LCHAN_ACTIVE [label="HO_EV_\nLCHAN_\nACTIVE,ERROR",style=dashed,constraint=false] + WAIT_LCHAN_ACTIVE -> WAIT_RR_HO_DETECT + + WAIT_RR_HO_DETECT -> msc [label="BSSMAP\nHandover\nAccept\nwith\nRR Handover\nCommand",style=dashed,constraint=false] + msc -> old_bsc -> old_lchan [label="RR Handover\nCommand",style=dashed] + + lchan -> WAIT_RR_HO_DETECT [label="RR Handover\nDetect",style=dashed] + WAIT_RR_HO_DETECT -> WAIT_RR_HO_COMPLETE + + lchan -> WAIT_RR_HO_COMPLETE [label="RR Handover\nComplete",style=dashed] + WAIT_RR_HO_COMPLETE -> WAIT_LCHAN_ESTABLISHED + lchan -> WAIT_LCHAN_ESTABLISHED [label="HO_EV_LCHAN_\nESTABLISHED",style=dashed] + + WAIT_LCHAN_ESTABLISHED -> term [label="non-TCH"] + WAIT_LCHAN_ESTABLISHED -> WAIT_MGW_ENDPOINT_TO_MSC + WAIT_MGW_ENDPOINT_TO_MSC -> term [label="handover_end()",style=dashed] + term -> msc [label="BSSMAP Handover\nComplete\n/ Failure",style=dashed,constraint=false] + + err [label="on error",shape=box,style=dashed] + err -> term + +} diff --git a/doc/handover-inter-bsc-mt.msc b/doc/handover-inter-bsc-mt.msc index 88a52da..52873c1 100644 --- a/doc/handover-inter-bsc-mt.msc +++ b/doc/handover-inter-bsc-mt.msc @@ -13,7 +13,7 @@ bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_TS_READY"]; ...; --- [label="on no lchan, lchan FSM error or timeout"]; - bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ERROR"]; bsc_gscon box bsc_gscon [label="handover_end(fail)"]; bsc_gscon => mgw_msc [label="BSSMAP Handover Failure"]; ms note bsc_gscon [label="MS happily continues on the old lchan."]; @@ -39,7 +39,7 @@ bsc_gscon -> bsc_lchan [label="LCHAN_EV_MGW_ENDPOINT_ERROR"]; bsc_lchan note bsc_gscon [label="conn FSM error handler exits and relies on the lchan FSM signalling error, which should actually happen immediately:"]; - bsc_gscon <- bsc_lchan [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_gscon <- bsc_lchan [label="GSCON_EV_LCHAN_ERROR"]; bsc_gscon -> bsc_mgcp [label="mgcp_conn_delete()"]; bsc_gscon box bsc_gscon [label="handover_end(fail)"]; bsc_gscon => mgw_msc [label="BSSMAP Handover Failure"]; diff --git a/doc/handover-intra-bsc-fsm.dot b/doc/handover-intra-bsc-fsm.dot new file mode 100644 index 0000000..4eb2561 --- /dev/null +++ b/doc/handover-intra-bsc-fsm.dot @@ -0,0 +1,27 @@ +digraph G { +rankdir=TB; + + lchan [label="lchan FSM",shape=box3d]; + intra [label="intra-BSC HO",shape=box]; + old_lchan [label="old lchan",shape=box3d]; + term [label="terminate",shape=box]; + + invisible [style="invisible"] + invisible -> intra [style=invisible,arrowhead=none] + invisible -> old_lchan [style=invisible,arrowhead=none] + + intra -> WAIT_LCHAN_ACTIVE [label="handover_start()",style=dashed] + WAIT_LCHAN_ACTIVE -> lchan [label="lchan_activate(FOR_HANDOVER)",style=dashed] + lchan -> WAIT_LCHAN_ACTIVE [label="HO_EV_\nLCHAN_\nACTIVE,ERROR",style=dashed,constraint=false] + WAIT_LCHAN_ACTIVE -> WAIT_RR_HO_DETECT + WAIT_RR_HO_DETECT -> old_lchan [label="RR Handover\nCommand",style=dashed,constraint=false] + + lchan -> WAIT_RR_HO_DETECT [label="RR Handover\nDetect",style=dashed] + WAIT_RR_HO_DETECT -> WAIT_RR_HO_COMPLETE + + lchan -> WAIT_RR_HO_COMPLETE [label="RR Handover\nComplete",style=dashed] + WAIT_RR_HO_COMPLETE -> WAIT_LCHAN_ESTABLISHED + lchan -> WAIT_LCHAN_ESTABLISHED [label="HO_EV_LCHAN_\nESTABLISHED",style=dashed] + + WAIT_LCHAN_ESTABLISHED -> term [label="handover_end()",style=dashed] +} diff --git a/doc/handover.msc b/doc/handover.msc index 7529de6..b4307a8 100644 --- a/doc/handover.msc +++ b/doc/handover.msc @@ -13,7 +13,7 @@ bsc_lchan <- bsc_gscon [label="lchan_activate(lchan, FOR_HANDOVER)"]; ...; --- [label="on lchan FSM error or timeout"]; - bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ERROR"]; bsc_gscon box bsc_gscon [label="handover_end(fail)"]; ms note bsc_gscon [label="MS happily continues on the old lchan."]; bsc_gscon abox bsc_gscon [label="ST_ACTIVE"]; @@ -43,7 +43,7 @@ bsc_gscon -> bsc_lchan [label="LCHAN_EV_MGW_ENDPOINT_ERROR"]; bsc_lchan note bsc_gscon [label="conn FSM error handler exits and relies on the lchan FSM signalling error, which should actually happen immediately:"]; - bsc_gscon <- bsc_lchan [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_gscon <- bsc_lchan [label="GSCON_EV_LCHAN_ERROR"]; bsc_gscon box bsc_gscon [label="handover_end(fail)"]; --- [label="IF handover_created_mgw_endpoint == true"]; bsc_gscon -> bsc_mgcp [label="mgcp_conn_delete()"]; diff --git a/doc/lchan-fsm.dot b/doc/lchan-fsm.dot index dbb283c..b8e348e 100644 --- a/doc/lchan-fsm.dot +++ b/doc/lchan-fsm.dot @@ -4,10 +4,11 @@ invisible [style="invisible"] UNUSED [penwidth=3.0] WAIT_TS_READY - WAIT_MGW_ENDPOINT_AVAILABLE WAIT_ACTIV_ACK + WAIT_MGW_ENDPOINT_AVAILABLE WAIT_IPACC_CRCX_ACK WAIT_IPACC_MDCX_ACK + WAIT_MGW_ENDPOINT_CONFIGURED WAIT_RLL_ESTABLISH ACTIVE [penwidth=3.0] WAIT_SAPIS_RELEASED @@ -17,16 +18,17 @@ BORKEN ts [label="timeslot FSM",shape=box3d]; - gscon [label="conn FSM",shape=box3d]; + mgwep [label="mgw endpoint\nFSM",shape=box3d]; UNUSED -> WAIT_TS_READY [label="lchan_allocate()"] WAIT_TS_READY -> WAIT_ACTIV_ACK WAIT_ACTIV_ACK -> WAIT_RLL_ESTABLISH WAIT_RLL_ESTABLISH -> WAIT_MGW_ENDPOINT_AVAILABLE [label="TCH"] WAIT_MGW_ENDPOINT_AVAILABLE -> WAIT_IPACC_CRCX_ACK [label="IPACC BTS"] - WAIT_MGW_ENDPOINT_AVAILABLE -> ACTIVE + WAIT_MGW_ENDPOINT_AVAILABLE -> WAIT_MGW_ENDPOINT_CONFIGURED WAIT_IPACC_CRCX_ACK -> WAIT_IPACC_MDCX_ACK - WAIT_IPACC_MDCX_ACK -> ACTIVE + WAIT_IPACC_MDCX_ACK -> WAIT_MGW_ENDPOINT_CONFIGURED + WAIT_MGW_ENDPOINT_CONFIGURED -> ACTIVE WAIT_RLL_ESTABLISH -> ACTIVE [label="non-TCH"]; WAIT_RLL_ESTABLISH -> WAIT_RF_RELEASE_ACK [label="timeout",style=dashed,constraint=false] @@ -45,9 +47,9 @@ WAIT_TS_READY -> UNUSED [label="error/timeout",style=dashed,constraint=false] {WAIT_ACTIV_ACK,WAIT_RF_RELEASE_ACK} -> BORKEN [label="error/timeout",style=dashed] - {WAIT_MGW_ENDPOINT_AVAILABLE,WAIT_IPACC_CRCX_ACK,WAIT_IPACC_MDCX_ACK} -> WAIT_SAPIS_RELEASED [label=error,style=dashed] + {WAIT_MGW_ENDPOINT_AVAILABLE,WAIT_IPACC_CRCX_ACK,WAIT_IPACC_MDCX_ACK,WAIT_MGW_ENDPOINT_CONFIGURED} -> WAIT_SAPIS_RELEASED [label=error,style=dashed] - WAIT_TS_READY -> gscon [label="GSCON_EV_\nENSURE_\nMGW_ENDPOINT",style=dotted] - gscon -> WAIT_MGW_ENDPOINT_AVAILABLE [label="LCHAN_EV_\nMGW_ENDPOINT_\n{AVAILABLE,ERROR}",style=dotted] + WAIT_TS_READY -> mgwep [label="CRCX",style=dotted] + mgwep -> WAIT_MGW_ENDPOINT_AVAILABLE [label="LCHAN_EV_\nMGW_ENDPOINT_\n{AVAILABLE,ERROR}",style=dotted] } diff --git a/doc/lchan.msc b/doc/lchan.msc index 9b7d663..42f2fb0 100644 --- a/doc/lchan.msc +++ b/doc/lchan.msc @@ -72,7 +72,7 @@ bsc_gscon note bsc_gscon [label="conn FSM should fire on CRCX timeout"]; bsc_lchan <- bsc_gscon [label="LCHAN_EV_MGW_ENDPOINT_ERROR"]; bsc_gscon note bsc_gscon [label="conn FSM should not assume anything and wait for - GSCON_EV_LCHAN_ALLOC_ERROR"]; + GSCON_EV_LCHAN_ERROR"]; bsc_lchan rbox bsc_lchan [label="Do 'On any error'"]; bsc_lchan abox bsc_lchan [label="LCHAN_ST_UNUSED"]; bsc_ts <- bsc_lchan [label="TS_EV_LCHAN_UNUSED"]; @@ -142,7 +142,7 @@ bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_\nRLL_ESTABLISH\nT3101"]; ...; --- [label="on timeout"]; - bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ERROR"]; bsc_lchan -> bsc_lchan [label="lchan_fsm_pre_rf_release()"]; ---; ...; @@ -166,7 +166,7 @@ bts <= bsc_lchan [label="IPACC CRCX"]; ...; --- [label="on timeout"]; - bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ERROR"]; bsc_lchan -> bsc_lchan [label="lchan_graceful_release()"]; ---; ...; @@ -182,7 +182,7 @@ this; SCCPlite: the RTP port is already known from the timeslot+multiplex information."]; ...; --- [label="on timeout"]; - bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ERROR"]; bsc_lchan -> bsc_lchan [label="lchan_graceful_release()"]; ---; ...; @@ -288,7 +288,7 @@ bts <= bsc_lchan [label="RR Immediate Assign Reject"]; |||; --- [label="IF FOR_ASSIGNMENT or FOR_HANDOVER"]; - bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ALLOC_ERROR"]; + bsc_lchan -> bsc_gscon [label="GSCON_EV_LCHAN_ERROR"]; bsc_gscon note bsc_gscon [label="conn FSM shall immediately 'forget' the lchan"]; bsc_gscon => mgw_msc [label="BSSMAP\nAssignment Failure",ID=FOR_ASSIGNMENT]; bsc_gscon => mgw_msc [label="BSSMAP\nHandover Failure",ID="inter-BSC-MT HO"]; diff --git a/doc/mgw-endpoint-fsm.dot b/doc/mgw-endpoint-fsm.dot new file mode 100644 index 0000000..8ad2e4a --- /dev/null +++ b/doc/mgw-endpoint-fsm.dot @@ -0,0 +1,22 @@ +digraph G { +rankdir=TB; + UNUSED + WAIT_MGW_RESPONSE + IN_USE + WAIT_DLCX_ALL + terminate [shape=box] + + other [label="other FSM",shape=box3d] + other -> UNUSED [label="mgw_{crcx,mdcx}_{bts,msc}()",style=dashed] + + UNUSED -> WAIT_MGW_RESPONSE + WAIT_MGW_RESPONSE -> IN_USE + IN_USE -> {WAIT_MGW_RESPONSE,WAIT_DLCX_ALL} + + other2 [label="other FSM",shape=box3d] + other2 -> IN_USE [label="mgw_{crcx,mdcx,dlcx}_{bts,msc}()",style=dashed] + WAIT_DLCX_ALL -> terminate + + IN_USE -> other2 [label="OTHER_EV_*",style=dashed] + IN_USE -> UNUSED [label="last DLCX"] +} diff --git a/doc/ms-channel-request.msc b/doc/ms-channel-request.msc index 1c5b4bf..4b7de78 100644 --- a/doc/ms-channel-request.msc +++ b/doc/ms-channel-request.msc @@ -27,7 +27,7 @@ bsc box bsc [label="Store RACH data in lchan->rqd_ref, rqd_ta"]; bsc -> bsc_lchan [label="lchan_allocate(FOR_MS_CHANNEL_REQUEST)"]; - bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_ACTIV_ACK\nT3103"]; + bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_ACTIV_ACK\nT3101"]; bsc_lchan note bsc_lchan [label="The lchan FSM knows that FOR_MS_CHANNEL_REQUEST is about Immediate Assignment."]; bts <= bsc_lchan [label="RSL Chan Activ (Immediate Assignment)"]; -- To view, visit https://gerrit.osmocom.org/9667 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: I29e31b753e23a4207662e0e385a337e7df836f45 Gerrit-Change-Number: 9667 Gerrit-PatchSet: 1 Gerrit-Owner: Neels Hofmeyr <nhofmeyr at sysmocom.de> -------------- next part -------------- An HTML attachment was scrubbed... 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