Hello pespin, laforge, osmith, Jenkins Builder,
I'd like you to reexamine a change. Please visit
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/15430
to look at the new patch set (#8).
Change subject: Introduce PCUIF, BTS and ClckGen components for RAW PCU test
cases
......................................................................
Introduce PCUIF, BTS and ClckGen components for RAW PCU test cases
The problem of existing test cases is that they mix IUT (i.e. OsmoPCU)
with OsmoBTS (osmo-bts-virtual) and OsmocomBB (virt_phy). This approach
allows to avoid dealing with TDMA clock indications and RTS requests on
the PCU interface - this is done by OsmoBTS. On the other hand, our test
scenarios may be potentially affected by undiscovered bugs in OsmoBTS
and the virt_phy.
In order to solve that problem, this change introduces a set of new
components and the corresponding handler functions:
- RAW_PCUIF_CT / f_PCUIF_CT_handler() - PCU interface (UNIX domain socket)
handler. Creates a server listening for incoming connections on a given
'pcu_sock_path', handles connection establishment and message forwarding
between connected BTS components (see below) and OsmoPCU.
- RAW_PCU_BTS_CT / f_BTS_CT_handler() - represents a single BTS entity,
connected to OsmoPCU through the RAW_PCUIF_CT. Takes care about sending
System Information 13 to OsmoPCU, forwarding TDMA clock indications from
a dedicated ClckGen component (see below), and filtering the received
messages by the BTS number.
- RAW_PCU_ClckGen_CT / f_ClckGen_CT_handler() - TDMA frame clock counter
built on top of a timer. Sends clock indications to the BTS component.
All components communicate using TTCN-3 ports and explicitly defined sets
of messages (see RAW_PCU_Clock_PT and RAW_PCU_MSG_PT). One noticeable kind
of such messages is events (see RAW_PCU_EVENT). That's how e.g. the PCUIF
component can notify the BTS component that OsmoPCU has just connected, or
the BTS component can notify the MTC that SI13 negotiation is completed.
Furthermore, the proposed set of components allows to have more than one
BTS entity, so we can also test multi-BTS operation in the future.
+-----+ +----------+ +---------+
| MTC +---------------+ PCUIF_CT +------+ OsmoPCU |
+--+--+ +----+-----+ +---------+
| |
| |
| |
| +-----------+ | +---------------+
+----+ BTS_CT #1 +------+ | ClckGen_CT #1 |
| +-----+-----+ | +-------+-------+
| | | |
| +---------------------------+
| |
| +-----------+ | +---------------+
+----+ BTS_CT #2 +------+ | ClckGen_CT #2 |
| +-----+-----+ | +-------+-------+
| | | |
| +---------------------------+
| |
| +-----------+ | +---------------+
+----+ BTS_CT #N +------+ | ClckGen_CT #N |
+-----+-----+ +-------+-------+
| |
+---------------------------+
Change-Id: I63a23abebab88fd5318eb4d907d6028e7c38e9a3
---
M library/PCUIF_Types.ttcn
A pcu/PCUIF_RAW_Components.ttcn
M pcu/PCU_Tests_RAW.ttcn
3 files changed, 319 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks
refs/changes/30/15430/8
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I63a23abebab88fd5318eb4d907d6028e7c38e9a3
Gerrit-Change-Number: 15430
Gerrit-PatchSet: 8
Gerrit-Owner: fixeria <axilira...@gmail.com>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <axilira...@gmail.com>
Gerrit-Reviewer: laforge <lafo...@gnumonks.org>
Gerrit-Reviewer: osmith <osm...@sysmocom.de>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: newpatchset
