From 5d8bff6ba05a45627b2af43447b5832165fc0eac Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Wed, 12 Jan 2022 02:35:01 +0100 Subject: add initial FSM design charts Related: SYS#5599 Change-Id: I55474daa6bb204a0fe7da0a3bf888bb7d1c46677 --- doc/charts/pfcp_cp_peer_fsm.dot | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 doc/charts/pfcp_cp_peer_fsm.dot (limited to 'doc/charts/pfcp_cp_peer_fsm.dot') diff --git a/doc/charts/pfcp_cp_peer_fsm.dot b/doc/charts/pfcp_cp_peer_fsm.dot new file mode 100644 index 0000000..101fe07 --- /dev/null +++ b/doc/charts/pfcp_cp_peer_fsm.dot @@ -0,0 +1,39 @@ +digraph G { +rankdir=TB +labelloc=t; label="PFCP CP peer FSM\nControl Plane side, managing association with remote UP peer" + +cp [label="CP function",shape="box"] + +cp -> WAIT_ASSOC_SETUP_RESP [label="cp_peer_associate()"] + +txrx [label="PFCP socket",shape="box"] +WAIT_ASSOC_SETUP_RESP -> txrx [label="tx_assoc_setup_req()",style=dotted] +txrx -> WAIT_ASSOC_SETUP_RESP [label="EV_RX_ASSOC_SETUP_RESP",style=dotted] +WAIT_ASSOC_SETUP_RESP -> ASSOCIATED [label="Assoc Setup Resp"] + +WAIT_ASSOC_SETUP_RESP -> WAIT_ASSOC_SETUP_RESP [label="retry"] + +heartbeat [label="PFCP heartbeat FSM",shape=box3d] +ASSOCIATED -> heartbeat [label="alloc()",style=dotted] +heartbeat -> ASSOCIATED [label="EV_HEARTBEAT_FAILURE",style=dotted] + +txrx2 [label="PFCP socket",shape="box"] +txrx2 -> ASSOCIATED [label="EV_RX_ASSOC_UPDATE_REQ\n3GPP TS 29.244 6.2.7.3.1",style=dotted] +GRACEFUL_RELEASE -> txrx2 [label="tx_assoc_update_resp()",style=dotted] + +cp_session [label="PFCP CP session FSM",shape=box3d] +cp -> ASSOCIATED [label="cp_peer_session_create()",style=dotted] +ASSOCIATED -> cp_session [label="cp_session_create()",style=dotted] +cp -> cp_session [style=invisible,arrowhead=none] + +ASSOCIATED -> GRACEFUL_RELEASE [label="Association Update\nindicating graceful release"] + +cp -> ASSOCIATED [label="cp_peer_release()",style=dotted] +ASSOCIATED -> term [label="cp_peer_release()\nHeartbeat failure"] + +ASSOCIATED -> WAIT_ASSOC_SETUP_RESP [label="Heartbeat failure"] + +GRACEFUL_RELEASE -> term +term [shape="octagon"] + +} -- cgit v1.2.3