[PROBLEM] bus: mhi: host: pci_generic: SDX24 Channels

[PROBLEM] bus: mhi: host: pci_generic: SDX24 Channels

[Murithi Borona]

Hello,

Module: Quectel EM120R-GL

This module does not appear to work fully with the default SDX24 configuration.
It appears to be another variant of the EM120R-GL (Also FCC-Locked by default).

Issues:
- Debug ports are missing (AT)
- It only works over MBIM/QMI with Qualcomm's RMNET driver.
- In QMI mode it's really unstable and unpredictable with the QMI port
freezing up.

Are there any missing channels in the SDX24 config or is this a hw/vendor issue.
When using Quectel's drivers (and blacklisting mhi_pci_generic), all
the ports are available.
The configuration for other variants of the same module brings up the
AT port ( with a recurring warning/error).

>> [ 5074.472791] sequence number glitch prev=1 curr=0


mhi_qcom_sdx24_info
==================

lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
Inc SDX24 [Snapdragon X24 4G] [17cb:0304]

ports: mhi_hwip0 (net), mhi_swip0 (net), wwan2mbim0 (mbim), wwan2qcdm0
(ignored), wwan2qmi0 (qmi)


mhi_quectel_em1xx_info
===================

lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
Inc SDX24 [Snapdragon X24 4G] [17cb:0304]

ports: wwan0 (net), wwan0at0 (at), wwan0mbim0 (mbim), wwan0qcdm0 (ignored)

Re: [PROBLEM] bus: mhi: host: pci_generic: SDX24 Channels

[Manivannan Sadhasivam]

+ Duke Xin (who is adding Quectel modem support these days)

On Sun, Jul 07, 2024 at 08:23:57PM +0300, Murithi Borona wrote:
> Hello,
> 
> Module: Quectel EM120R-GL
> 
> This module does not appear to work fully with the default SDX24 configuration.
> It appears to be another variant of the EM120R-GL (Also FCC-Locked by default).
> 
> Issues:
> - Debug ports are missing (AT)
> - It only works over MBIM/QMI with Qualcomm's RMNET driver.
> - In QMI mode it's really unstable and unpredictable with the QMI port
> freezing up.
> 
> Are there any missing channels in the SDX24 config or is this a hw/vendor issue.
> When using Quectel's drivers (and blacklisting mhi_pci_generic), all
> the ports are available.
> The configuration for other variants of the same module brings up the
> AT port ( with a recurring warning/error).
> 

Most likely this device is a derivative product that needs a different
configuration than EM120R-GL. Could you please share the sub-vendor/device ids?
You can just share the output of 'lspci -vmm' command.

Duke Xin: Are you aware of such derivative product?

- Mani

> >> [ 5074.472791] sequence number glitch prev=1 curr=0
> 
> 
> mhi_qcom_sdx24_info
> ==================
> 
> lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
> Inc SDX24 [Snapdragon X24 4G] [17cb:0304]
> 
> ports: mhi_hwip0 (net), mhi_swip0 (net), wwan2mbim0 (mbim), wwan2qcdm0
> (ignored), wwan2qmi0 (qmi)
> 
> 
> mhi_quectel_em1xx_info
> ===================
> 
> lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
> Inc SDX24 [Snapdragon X24 4G] [17cb:0304]
> 
> ports: wwan0 (net), wwan0at0 (at), wwan0mbim0 (mbim), wwan0qcdm0 (ignored)

-- 
மணிவண்ணன் சதாசிவம்

Re: [PROBLEM] bus: mhi: host: pci_generic: SDX24 Channels

[Murithi Borona]

Here's the sub-vendor/device ids.

Slot:   0003:00:00.0
Class:  PCI bridge
Vendor: MEDIATEK Corp.
Device: Device 7988
Rev:    01
ProgIf: 00

Slot:   0003:01:00.0
Class:  Unassigned class [ff00]
Vendor: Qualcomm Technologies, Inc
Device: SDX24 [Snapdragon X24 4G]
SVendor:        Qualcomm Technologies, Inc
SDevice:        SDX24 [Snapdragon X24 4G]
ProgIf: 00

Duke,

If it helps this is the modem firmware/config as seen by ModemManager.

manufacturer: quectel
model: EM120R_GL
firmware revision: EM120RGLAPR02A07M4G
carrier config: ROW_Commercial
config revision: 08010809
h/w revision: EM120R_GL

Full Firmware Version: M120RGLAPR02A07M4G_10.010.10.010

On Mon, 8 Jul 2024 at 11:21, Manivannan Sadhasivam
<manivannan.sadhasivam@linaro.org> wrote:
>
> + Duke Xin (who is adding Quectel modem support these days)
>
> On Sun, Jul 07, 2024 at 08:23:57PM +0300, Murithi Borona wrote:
> > Hello,
> >
> > Module: Quectel EM120R-GL
> >
> > This module does not appear to work fully with the default SDX24 configuration.
> > It appears to be another variant of the EM120R-GL (Also FCC-Locked by default).
> >
> > Issues:
> > - Debug ports are missing (AT)
> > - It only works over MBIM/QMI with Qualcomm's RMNET driver.
> > - In QMI mode it's really unstable and unpredictable with the QMI port
> > freezing up.
> >
> > Are there any missing channels in the SDX24 config or is this a hw/vendor issue.
> > When using Quectel's drivers (and blacklisting mhi_pci_generic), all
> > the ports are available.
> > The configuration for other variants of the same module brings up the
> > AT port ( with a recurring warning/error).
> >
>
> Most likely this device is a derivative product that needs a different
> configuration than EM120R-GL. Could you please share the sub-vendor/device ids?
> You can just share the output of 'lspci -vmm' command.
>
> Duke Xin: Are you aware of such derivative product?
>
> - Mani
>
> > >> [ 5074.472791] sequence number glitch prev=1 curr=0
> >
> >
> > mhi_qcom_sdx24_info
> > ==================
> >
> > lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
> > Inc SDX24 [Snapdragon X24 4G] [17cb:0304]
> >
> > ports: mhi_hwip0 (net), mhi_swip0 (net), wwan2mbim0 (mbim), wwan2qcdm0
> > (ignored), wwan2qmi0 (qmi)
> >
> >
> > mhi_quectel_em1xx_info
> > ===================
> >
> > lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
> > Inc SDX24 [Snapdragon X24 4G] [17cb:0304]
> >
> > ports: wwan0 (net), wwan0at0 (at), wwan0mbim0 (mbim), wwan0qcdm0 (ignored)
>
> --
> மணிவண்ணன் சதாசிவம்

Re: [PROBLEM] bus: mhi: host: pci_generic: SDX24 Channels

[Manivannan Sadhasivam]

On Mon, Jul 08, 2024 at 12:57:06PM +0300, Murithi Borona wrote:
> Here's the sub-vendor/device ids.
> 
> Slot:   0003:00:00.0
> Class:  PCI bridge
> Vendor: MEDIATEK Corp.
> Device: Device 7988
> Rev:    01
> ProgIf: 00
> 
> Slot:   0003:01:00.0
> Class:  Unassigned class [ff00]
> Vendor: Qualcomm Technologies, Inc
> Device: SDX24 [Snapdragon X24 4G]
> SVendor:        Qualcomm Technologies, Inc
> SDevice:        SDX24 [Snapdragon X24 4G]
> ProgIf: 00
> 
> Duke,
> 
> If it helps this is the modem firmware/config as seen by ModemManager.
> 
> manufacturer: quectel
> model: EM120R_GL
> firmware revision: EM120RGLAPR02A07M4G
> carrier config: ROW_Commercial
> config revision: 08010809
> h/w revision: EM120R_GL
> 
> Full Firmware Version: M120RGLAPR02A07M4G_10.010.10.010
> 

Duke Xin, do you have any idea about this issue?

- Mani

> On Mon, 8 Jul 2024 at 11:21, Manivannan Sadhasivam
> <manivannan.sadhasivam@linaro.org> wrote:
> >
> > + Duke Xin (who is adding Quectel modem support these days)
> >
> > On Sun, Jul 07, 2024 at 08:23:57PM +0300, Murithi Borona wrote:
> > > Hello,
> > >
> > > Module: Quectel EM120R-GL
> > >
> > > This module does not appear to work fully with the default SDX24 configuration.
> > > It appears to be another variant of the EM120R-GL (Also FCC-Locked by default).
> > >
> > > Issues:
> > > - Debug ports are missing (AT)
> > > - It only works over MBIM/QMI with Qualcomm's RMNET driver.
> > > - In QMI mode it's really unstable and unpredictable with the QMI port
> > > freezing up.
> > >
> > > Are there any missing channels in the SDX24 config or is this a hw/vendor issue.
> > > When using Quectel's drivers (and blacklisting mhi_pci_generic), all
> > > the ports are available.
> > > The configuration for other variants of the same module brings up the
> > > AT port ( with a recurring warning/error).
> > >
> >
> > Most likely this device is a derivative product that needs a different
> > configuration than EM120R-GL. Could you please share the sub-vendor/device ids?
> > You can just share the output of 'lspci -vmm' command.
> >
> > Duke Xin: Are you aware of such derivative product?
> >
> > - Mani
> >
> > > >> [ 5074.472791] sequence number glitch prev=1 curr=0
> > >
> > >
> > > mhi_qcom_sdx24_info
> > > ==================
> > >
> > > lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
> > > Inc SDX24 [Snapdragon X24 4G] [17cb:0304]
> > >
> > > ports: mhi_hwip0 (net), mhi_swip0 (net), wwan2mbim0 (mbim), wwan2qcdm0
> > > (ignored), wwan2qmi0 (qmi)
> > >
> > >
> > > mhi_quectel_em1xx_info
> > > ===================
> > >
> > > lspci: 0003:01:00.0 Unassigned class [ff00]: Qualcomm Technologies,
> > > Inc SDX24 [Snapdragon X24 4G] [17cb:0304]
> > >
> > > ports: wwan0 (net), wwan0at0 (at), wwan0mbim0 (mbim), wwan0qcdm0 (ignored)
> >
> > --
> > மணிவண்ணன் சதாசிவம்

-- 
மணிவண்ணன் சதாசிவம்