diff options
| author | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-01-25 12:05:32 +0100 |
|---|---|---|
| committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-01-25 16:56:59 +0100 |
| commit | fc464935a451346a24150d60e62f84d42022f910 (patch) | |
| tree | 2c932decf47cfaca1212b2f6d4698c6640095b6c /src/pcu_vty_functions.cpp | |
| parent | 201da4e5b2b430d4a63bdf62b47e28065cceb8f4 (diff) | |
Fix Dl EGPRS data blocks being generated occasionally on GPRS TBFs
Under some circumstances, it could happen that a DL TBF is created as a
GPRS TBF due to not yet having enough information of the MS, and only
after the TBF is created the PCU gains that information and upgrades the
MS mode to "EGPRS". Hence, there's the possibility to run into a
situation where a GPRS TBF is attached to a EGPRS MS.
It may also happen sometimes that despite the TBF and the MS be EGPRS,
there's need to further limit the DL MCS to use, eg. MCS1-4 (GMSK).
As a result, when asking for the current DL (M)CS to use, we must tell
the MS which kind of limitations we want to apply. The later reasoning
was already implemented when GPRS+EGPRS multiplexing was added, but the
former was not being checked. Hence, by further spreading through the
call stack the "req_kind_mode" we match both cases.
Related: OS#4973
Change-Id: Ic0276ce045660713129f0c72f1158a3321c5977f
Diffstat (limited to 'src/pcu_vty_functions.cpp')
| -rw-r--r-- | src/pcu_vty_functions.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/pcu_vty_functions.cpp b/src/pcu_vty_functions.cpp index 48780c0f..c2250d9e 100644 --- a/src/pcu_vty_functions.cpp +++ b/src/pcu_vty_functions.cpp @@ -133,7 +133,7 @@ static int show_ms(struct vty *vty, GprsMs *ms) vty_out(vty, " Timing advance (TA): %d%s", ms_ta(ms), VTY_NEWLINE); vty_out(vty, " Coding scheme uplink: %s%s", mcs_name(ms_current_cs_ul(ms)), VTY_NEWLINE); - vty_out(vty, " Coding scheme downlink: %s%s", mcs_name(ms_current_cs_dl(ms)), + vty_out(vty, " Coding scheme downlink: %s%s", mcs_name(ms_current_cs_dl(ms, ms_mode(ms))), VTY_NEWLINE); vty_out(vty, " Mode: %s%s", mode_name(ms_mode(ms)), VTY_NEWLINE); vty_out(vty, " MS class: %d%s", ms_ms_class(ms), VTY_NEWLINE); |