libqmi instead of NetworkManager?
Dan Williams
dcbw at redhat.com
Fri Oct 2 06:39:03 PDT 2015
On Fri, 2015-10-02 at 12:44 +0200, Aleksander Morgado wrote:
> Hey Paul,
>
> On Fri, Oct 2, 2015 at 12:19 PM, Paul R <r_paulr at outlook.es> wrote:
> >>Note that NetworkManager is not really the one setting up all the
> >> communication with the modem, ModemManager is doing that, and ModemManager
> >> itself is using libqmi internally.
> >>You say it takes a couple of minutes to re-establish connection when signal
> >> is lost after is received again.
> >>I'm assuming you have the settings configured as auto-connect in
> >> NetworkManager, right?
> >
> > Right. Just "default" configuration.
> >
>
> "default" meaning that it is set to auto-connect or not? I'm not sure
> if Ubuntu had a custom patch to enable that for WWAN since a long time
> ago or maybe I'm remembering wrong.
>
> >>Also, it's not that libqmi "goes faster"; it likely is that ModemManager
> >> does more steps than your single qmicli commands.
> >>And of course, if using libqmi, you'll need to detect the disconnection and
> >> re-connect yourself (i.e. a single --wda-start-network won't reconnect).
> >
> > Yes...ModemManager handles it all with that funny DBUS thing....
>
> XD
>
> > I´ve added --debug info for it here.
> > I´ll check your --wda-set-data-format=802-3 suggestion.
> >
> >> > Also, wen using NetworkManager I see lots of CDMA trial an error probes.
> >> > I´m
> >> > not going to use CDMA. How can I disable it with libqmi?
> >> > Could you help me?
> >>
> >> Could you provide the messages you're talking about?
> >
> > This are the messages. I´ve filtered some MM debug messages, excuse me if
> > this is still too dense...
> >
>
> The thing is that the MC7354 is both GSM/UMTS/LTE and CDMA/EVDO, so
> ModemManager tries to match CDMA/LTE related rules as well as the
> GSM/UMTS/LTE ones. When using libqmi/qmicli directly you can just
> ignore all CDMA related stuff. When using ModemManager, the modem
> should still allow you to connect to GSM/UMTS/LTE even if CDMA/EVDO is
> not available; if it doesn't let you connect, that would be a problem.
What service provider are you trying to connect with Paul?
Aleksander, it looks like the modem isn't registered with any provider,
much less an LTE or 3GPP capable one. The Serving System response says
"not-registered-searching". So until that says the modem is registered
to something (either 3GPP or 3GPP2) the modem won't allow a connection
AFAIK.
Dan
> > ========================================
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: <debug> [1443708298.767330]
> > [mm-iface-modem-cdma.c:936] mm_iface_modem_cdma_run_registration_checks():
> > Running registration checks (CDMA1x: 'yes', EV-DO: 'yes')
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: [/dev/cdc-wdm0] Sent
> > message...#012<<<<<< RAW:#012<<<<<< length = 13#012<<<<<< data =
> > 01:0C:00:00:03:01:00:C1:00:24:00:00:00
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: [/dev/cdc-wdm0] Sent message
> > (translated)...
> > #012<<<<<< QMUX:#012<<<<<< length = 12#012<<<<<< flags =
> > 0x00#012<<<<<< service = "nas"#012<<<<<< client = 1#012<<<<<<
> > QMI:#012<<<<<< flags = "none"#012<<<<<< transaction = 193#012
> > <<<<<< tlv_length = 0#012<<<<<< message = "Get Serving System"
> > (0x0024)
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: [/dev/cdc-wdm0] Received
> > message...#012>>>>>> RAW:#012>>>>>> length = 41#012
> >>>>>>> data =
> >>>>>>> 01:28:00:80:03:01:02:C1:00:24:00:1C:00:02:04:00:00:00:00:00:21:05:00:00:03:04:01:00:11:01:00:00:01:06:00:02:02:02:00:01:00
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: [/dev/cdc-wdm0] Received
> > message (translated)...#012>>>>>> QMUX:#012>>>>>> length = 40#012
> >>>>>>> flags = 0x80#012>>>>>> service = "nas"#012>>>>>> client =
> >>>>>>> 1#012>>>>>> QMI:#012>>>>>> flags = "response"#012>>>>>>
> >>>>>>> transaction = 193#012>>>>>> tlv_length = 28#012
> >>>>>>> message = "Get Serving System" (0x0024)#012>>>>>>
> >>>>>>> TLV:#012>>>>>> type = "Result" (0x02)#012>>>>>> length =
> >>>>>>> 4#012>>>>>> value = 00:00:00:00#012>>>>>> translated = SUCCESS#012
> >>>>>>> TLV:#012>>>>>> type = "Detailed Service Status"
> >>>>>>> (0x21)#012>>>>>> length = 5#012>>>>>> value =
> >>>>>>> 00:03:04:01:00#012
> >>>>>>> translated = [ status = 'none' capability = 'cs-ps' hdr_status =
> >>>>>>> 'power-save' hdr_hybrid = 'yes' forbidden = 'no' ]#012>>>>>> TLV:#012>>>>>>
> >>>>>>> type = "Data Service Capability" (0x11)#012
> >>>>>>> length = 1#012>>>>>> value = 00#012>>>>>> translated =
> >>>>>>> {}#012>>>>>> TLV:#012>>>>>> type = "Serving System" (0x01)#012>>>>>>
> >>>>>>> length = 6#012
> >>>>>>> value = 02:02:02:00:01:00#012
> >>>>>>> translated = [ registration_state = 'not-registered-searching'
> >>>>>>> cs_attach_state = 'detached' ps_attach_state = 'detached' selected_network =
> >>>>>>> 'unknown' radio_interfaces = '{ [0] = 'none '}' ]
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: <debug> [1443708298.801906]
> > [mm-broadband-modem-qmi.c:4830] common_process_serving_system_cdma(): No
> > CDMA info given...
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: <debug> [1443708298.802747]
> > [mm-bearer.c:340] modem_cdma_registration_state_changed(): Bearer not
> > allowed to connect, not registered in CDMA network
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: <debug> [1443708298.803601]
> > [mm-bearer.c:340] modem_cdma_registration_state_changed(): Bearer not
> > allowed to connect, not registered in CDMA network
> > Oct 1 16:04:58 MVC600 ModemManager.orig[1787]: <debug> [1443708298.804339]
> > [mm-broadband-modem.c:7280] run_cdma_registration_checks_ready(): Modem not
> > yet registered in a CDMA network... will recheck soon
> > Oct 1 16:05:01 MVC600 ModemManager.orig[1787]: <debug> [1443708301.730083]
> > [mm-iface-modem-cdma.c:936] mm_iface_modem_cdma_run_registration_checks():
> > Running registration checks (CDMA1x: 'yes', EV-DO: 'yes')
> > Oct 1 16:05:01 MVC600 ModemManager.orig[1787]: [/dev/cdc-wdm0] Sent
> > message...#012<<<<<< RAW:#012<<<<<< length = 13#012<<<<<< data =
> > 01:0C:00:00:03:01:00:C2:00:24:00:00:00
> > ...Same debug PDUs deleted for clarity
> > ...
> > Oct 1 16:05:01 MVC600 ModemManager.orig[1787]: <debug> [1443708301.741037]
> > [mm-broadband-modem-qmi.c:4830] common_process_serving_system_cdma(): No
> > CDMA info given...
> > Oct 1 16:05:01 MVC600 ModemManager.orig[1787]: <debug> [1443708301.741284]
> > [mm-bearer.c:340] modem_cdma_registration_state_changed(): Bearer not
> > allowed to connect, not registered in CDMA network
> > Oct 1 16:05:01 MVC600 ModemManager.orig[1787]: <debug> [1443708301.741486]
> > [mm-bearer.c:340] modem_cdma_registration_state_changed(): Bearer not
> > allowed to connect, not registered in CDMA network
> > Oct 1 16:05:01 MVC600 ModemManager.orig[1787]: <debug> [1443708301.741601]
> > [mm-broadband-modem.c:7280] run_cdma_registration_checks_ready(): Modem not
> > yet registered in a CDMA network... will recheck soon
> > Oct 1 16:05:04 MVC600 ModemManager.orig[1787]: <debug> [1443708304.729812]
> > [mm-iface-modem-cdma.c:936] mm_iface_modem_cdma_run_registration_checks():
> > Running registration checks (CDMA1x: 'yes', EV-DO: 'yes')
> > Oct 1 16:05:04 MVC600 ModemManager.orig[1787]: <debug> [1443708304.749012]
> > [mm-broadband-modem-qmi.c:4830] common_process_serving_system_cdma(): No
> > CDMA info given...
> >
> > And this repeats forever.
> > ==============================================
> >
> > Also, this is what ModemManager tells me at boot.
> > Shouldn't it peek Sierra driver instead of Gobi?.(A bad udev rule? )
> >
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.889463]
> > [main.c:61] bus_acquired_cb(): Bus acquired, creating manager...
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.891028]
> > [mm-plugin-manager.c:788] load_plugins(): Looking for plugins in
> > '/usr/lib/x86_64-linux-gnu/ModemManager'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.909078]
> > [mm-plugin-manager.c:813] load_plugins(): Loaded plugin 'Gobi'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.910197]
> > [mm-plugin-manager.c:813] load_plugins(): Loaded plugin 'AnyDATA'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.911262]
> > [mm-plugin-manager.c:813] load_plugins(): Loaded plugin 'Sierra'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.912316]
> > [mm-plugin-manager.c:813] load_plugins(): Loaded plugin 'Ericsson MBM'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.913311]
> > [mm-plugin-manager.c:813] load_plugins(): Loaded plugin 'Generic'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.914997]
> > [mm-plugin-manager.c:813] load_plugins(): Loaded plugin 'Option High-Speed'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.916440]
> > [mm-plugin-manager.c:813] load_plugins(): Loaded plugin 'Option'
> > Oct 2 09:05:26 MVC600 NetworkManager[8845]: <info> NetworkManager (version
> > 0.9.8.8) is starting...
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.916987]
> > [mm-plugin-manager.c:838] load_plugins(): Successfully loaded 7 plugins
> > Oct 2 09:05:26 MVC600 NetworkManager[8845]: <info> Read config file
> > /etc/NetworkManager/NetworkManager.conf
> > Oct 2 09:05:26 MVC600 NetworkManager[8845]: <info> WEXT support is enabled
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.920552]
> > [main.c:79] name_acquired_cb(): Service name 'org.freedesktop.ModemManager1'
> > was acquired
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.920890]
> > [mm-manager.c:456] mm_manager_start(): Starting automatic device scan...
> > Oct 2 09:05:26 MVC600 NetworkManager[8845]: <info> VPN: loaded
> > org.freedesktop.NetworkManager.pptp
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.937781]
> > [mm-manager.c:495] mm_manager_start(): Finished device scan...
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.940106]
> > [mm-plugin-manager.c:675] mm_plugin_manager_find_device_support(): (Plugin
> > Manager) [/sys/devices/pci0000:00/0000:00:1a.7/usb1/1-1] Checking device
> > support...
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.940837]
> > [mm-plugin-manager.c:576] build_plugins_list(): (Plugin Manager) [ttyUSB0]
> > Found '2' plugins to try...
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.941130]
> > [mm-plugin-manager.c:580] build_plugins_list(): (Plugin Manager) [ttyUSB0]
> > Will try with plugin 'Gobi'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.941427]
> > [mm-plugin-manager.c:580] build_plugins_list(): (Plugin Manager) [ttyUSB0]
> > Will try with plugin 'Generic'
> > Oct 2 09:05:26 MVC600 ModemManager.orig[8837]: <debug> [1443769526.942420]
> > [mm-plugin.c:772] mm_plugin_supports_port(): (Gobi) [ttyUSB0] probe
> > required: 'at, qcdm'
>
>
>
>
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