Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID)

Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID)

[Paul Menzel]

Dear Linux folks,


On a Dell XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022, connect a Dell 
DA300 to the only USB Type-C port on the left side (with a network cable 
connect), Linux logs the warnings below:

```
$ cat /proc/version
Linux version 5.19.0-1-amd64 (debian-kernel@lists.debian.org) (gcc-11 
(Debian 11.3.0-5) 11.3.0, GNU ld (GNU Binutils for Debian) 
2.38.90.20220713) #1 SMP PREEMPT_DYNAMIC Debian 5.19.6-1 (2022-09-01)
$ sudo dmesg --level=warn
[…]
[    5.710957] pci 0000:01:00.0: PCIe Bus Error: severity=Corrected, 
type=Data Link Layer, (Receiver ID)
[    5.710959] pci 0000:01:00.0:   device [8086:1576] error 
status/mask=00000080/00002000
[    5.710962] pci 0000:01:00.0:    [ 7] BadDLLP
[    5.715022] hpet_acpi_add: no address or irqs in _CRS
[…]
[   18.895120] ucsi_acpi USBC000:00: UCSI_GET_PDOS returned 0 bytes
[   19.503002] pcieport 0000:01:00.0: PCIe Bus Error: 
severity=Corrected, type=Data Link Layer, (Receiver ID)
[   19.503010] pcieport 0000:01:00.0:   device [8086:1576] error 
status/mask=00000080/00002000
[   19.503020] pcieport 0000:01:00.0:    [ 7] BadDLLP
[…]
```

Is that a hardware problem, or something the Linux kernel can address?

I created the bug report #216474 [1] with the output of `lspci -nn`, 
`lsusb` and `dmesg`.


Kind regards,

Paul


[1]: https://bugzilla.kernel.org/show_bug.cgi?id=216474
      "Bug 216474 - Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus 
Error: severity=Corrected, type=Data Link Layer, (Receiver ID)"

Re: Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID)

[Heikki Krogerus]

Hi Paul,

On Mon, Sep 12, 2022 at 03:36:09PM +0200, Paul Menzel wrote:
> Dear Linux folks,
> 
> On a Dell XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022, connect a Dell DA300
> to the only USB Type-C port on the left side (with a network cable connect),
> Linux logs the warnings below:

> [   18.895120] ucsi_acpi USBC000:00: UCSI_GET_PDOS returned 0 bytes

This warning you already reported [1]. I will send a patch for this
once I'm sure I understand what's going on. I'm fairly sure I now know
what is causing that, but I will still run a few more tests to be
absolutely sure.

The warning is in any case not critical.

[1] https://lore.kernel.org/linux-usb/726661bf-b95f-02fc-e7c5-c222820ee257@molgen.mpg.de/

-- 
heikki

Re: Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID)

[Paul Menzel]

Dear Heikki,


Am 12.09.22 um 15:53 schrieb Heikki Krogerus:

> On Mon, Sep 12, 2022 at 03:36:09PM +0200, Paul Menzel wrote:

>> On a Dell XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022, connect a Dell DA300
>> to the only USB Type-C port on the left side (with a network cable connect),
>> Linux logs the warnings below:
> 
>> [   18.895120] ucsi_acpi USBC000:00: UCSI_GET_PDOS returned 0 bytes
> 
> This warning you already reported [1]. I will send a patch for this
> once I'm sure I understand what's going on. I'm fairly sure I now know
> what is causing that, but I will still run a few more tests to be
> absolutely sure.
> 
> The warning is in any case not critical.

The line slipped through. Sorry for the noise, and thank you for your 
reply. This thread was supposed to be for the PCIe bus errors.


Kind regards,

Paul


> [1] https://lore.kernel.org/linux-usb/726661bf-b95f-02fc-e7c5-c222820ee257@molgen.mpg.de/

Re: Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID)

[Bjorn Helgaas]

On Mon, Sep 12, 2022 at 03:36:09PM +0200, Paul Menzel wrote:
> Dear Linux folks,
> 
> 
> On a Dell XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022, connect a Dell DA300
> to the only USB Type-C port on the left side (with a network cable connect),
> Linux logs the warnings below:

> Linux version 5.19.0-1-amd64 (debian-kernel@lists.debian.org) (gcc-11 (Debian 11.3.0-5) 11.3.0, GNU ld (GNU Binutils for Debian) 2.38.90.20220713) #1 SMP PREEMPT_DYNAMIC Debian 5.19.6-1 (2022-09-01)

> [    5.710957] pci 0000:01:00.0: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID)
> [    5.710959] pci 0000:01:00.0:   device [8086:1576] error status/mask=00000080/00002000
> [    5.710962] pci 0000:01:00.0:    [ 7] BadDLLP

Your dmesg log has many (51!) BadDLLP errors (which are corrected) and
one Replay Timer Timeout error (also corrected).  I'm not a hardware
person, but I don't know how software could cause these errors.

Unless this is a regression, I suspect a hardware issue like a bad
cable or connector.

> I created the bug report #216474 [1] with the output of `lspci -nn`, `lsusb`
> and `dmesg`.
> 
> [1]: https://bugzilla.kernel.org/show_bug.cgi?id=216474
>      "Bug 216474 - Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID)"