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Bug#919656: usb - surface dock - ethernet - fix included

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  Bug#919656: usb - surface dock - ethernet - fix included - <choeffer@mailbox.org> - 2019-01-18 11:50 +0100
    Bug#919656: dmesg output wayne wayne <choeffer@mailbox.org> - 2019-01-18 12:00 +0100
    Bug#919656: Acknowledgement (usb - surface dock - ethernet - fix included) - <choeffer@mailbox.org> - 2019-01-20 20:30 +0100
    Bug#919656: Acknowledgement (usb - surface dock - ethernet - fix included) - <choeffer@mailbox.org> - 2019-01-20 21:30 +0100

#63098 — Bug#919656: usb - surface dock - ethernet - fix included

Package: linux-image-4.19.0-1-amd64
Severity: important

Device: Surface Go

Debian Version: Buster with latest updates

Summary:

The Surface Dock is working fine, hot-plugging and suspend (even with
S3) are working, just the Ethernet port does not get an IP address. It
is recognized, but not working.

There is a quirk available for the powermanagement, see https://github.
com/jakeday/linux-surface/issues/259 for more information and https://g
ithub.com/jakeday/linux-
surface/pull/325/commits/2dd7c642990602cb7f873d4b151098876e80ddb2 for
the patch.

If more informations are needed, please let me know.

best regards

Christian Höffer

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#63099 — Bug#919656: dmesg output

after connecting the Surface Dock I get the following output:

[ 1548.069549] usb 2-2: new SuperSpeed Gen 1 USB device number 2 using xhci_hcd
[ 1548.095899] usb 2-2: New USB device found, idVendor=045e, idProduct=0900, bcdDevice=47.53
[ 1548.095904] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1548.095908] usb 2-2: Product: Surface Dock USB3Hub
[ 1548.095911] usb 2-2: Manufacturer: Microsoft
[ 1548.098453] hub 2-2:1.0: USB hub found
[ 1548.098818] hub 2-2:1.0: 2 ports detected
[ 1548.217553] usb 1-2: new high-speed USB device number 4 using xhci_hcd
[ 1548.376872] usb 1-2: New USB device found, idVendor=045e, idProduct=0901, bcdDevice=47.53
[ 1548.376879] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1548.376883] usb 1-2: Product: Surface Dock USB2Hub
[ 1548.376887] usb 1-2: Manufacturer: Microsoft
[ 1548.379165] hub 1-2:1.0: USB hub found
[ 1548.380351] hub 1-2:1.0: 4 ports detected
[ 1548.449617] usb 2-2.2: new SuperSpeed Gen 1 USB device number 3 using xhci_hcd
[ 1548.470222] usb 2-2.2: New USB device found, idVendor=045e, idProduct=07c6, bcdDevice=30.00
[ 1548.470228] usb 2-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=6
[ 1548.470231] usb 2-2.2: Product: Surface Dock GigE
[ 1548.470234] usb 2-2.2: Manufacturer: Microsoft
[ 1548.470237] usb 2-2.2: SerialNumber: 000001000000
[ 1548.681433] usb 1-2.1: new high-speed USB device number 5 using xhci_hcd
[ 1548.794992] usb 1-2.1: New USB device found, idVendor=045e, idProduct=0903, bcdDevice=47.54
[ 1548.794999] usb 1-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1548.795003] usb 1-2.1: Product: Surface Dock USB2Hub
[ 1548.795006] usb 1-2.1: Manufacturer: Microsoft
[ 1548.799435] hub 1-2.1:1.0: USB hub found
[ 1548.800957] hub 1-2.1:1.0: 4 ports detected
[ 1548.865765] usb 2-2.1: new SuperSpeed Gen 1 USB device number 4 using xhci_hcd
[ 1548.889499] usb 2-2.1: New USB device found, idVendor=045e, idProduct=0902, bcdDevice=47.54
[ 1548.889506] usb 2-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1548.889510] usb 2-2.1: Product: Surface Dock USB3Hub
[ 1548.889513] usb 2-2.1: Manufacturer: Microsoft
[ 1548.893042] hub 2-2.1:1.0: USB hub found
[ 1548.893412] hub 2-2.1:1.0: 4 ports detected
[ 1548.920332] usbcore: registered new interface driver r8152
[ 1548.927851] usbcore: registered new interface driver cdc_ether
[ 1548.965452] usb 1-2.3: new full-speed USB device number 6 using xhci_hcd
[ 1549.068526] usb 1-2.3: New USB device found, idVendor=045e, idProduct=0904, bcdDevice=70.07
[ 1549.068533] usb 1-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1549.068537] usb 1-2.3: Product: Surface Dock Extender
[ 1549.068540] usb 1-2.3: Manufacturer: Microsoft
[ 1549.077740] hid-generic 0003:045E:0904.0008: hiddev3,hidraw5: USB HID v1.11 Device [Microsoft Surface Dock Extender] on usb-0000:00:14.0-2.3/input0
[ 1549.149663] usb 2-2.2: reset SuperSpeed Gen 1 USB device number 3 using xhci_hcd
[ 1549.206651] r8152 2-2.2:1.0 eth0: v1.09.9
[ 1549.226930] r8152 2-2.2:1.0 enxc49dedebff2f: renamed from eth0
[ 1549.264720] IPv6: ADDRCONF(NETDEV_UP): enxc49dedebff2f: link is not ready
[ 1557.800266] IPv6: ADDRCONF(NETDEV_UP): enxc49dedebff2f: link is not ready
[ 1557.818696] r8152 2-2.2:1.0 enxc49dedebff2f: Stop submitting intr, status -71

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#63134 — Bug#919656: Acknowledgement (usb - surface dock - ethernet - fix included)

A temporary solution (or to test this patch) is to use a kernel
parameter in grub2.

https://www.kernel.org/doc/html/v4.19/admin-guide/kernel-parameters.htm
l

In line "linux" before "quiet" add

"usbcore.quirks=045e:07c6:k"

(means -> VendorID:ProductID:Flags)

and after booting the docks Ethernet is working fine. I do not know if
using this quirk is a good solution, but because the quirk is bound to
a specific VendorID and ProductID it should not conflict with other usb
devices.

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#63135 — Bug#919656: Acknowledgement (usb - surface dock - ethernet - fix included)

https://github.com/torvalds/linux/blob/v4.19/drivers/net/usb/cdc_ether.c
Intersting to mention is that the ProductID 0x07c6 is blacklisted in
the cdc_ether driver and the proper belonging r8152 is used.

The above ProductID can be found in
https://github.com/torvalds/linux/blob/v4.19/drivers/net/usb/r8152.c

As long as the ProductID is blacklisted in cdc_ether and explicitly
listed in r8152 it should be safe to use the quirk, because the proper
r8152 driver will be used and it seems just to be a powermanagement
issue. 
And because it is a dock and conncted to the power grid proper power
saving is not neccessary.

So it should be safe to add this quirk here https://github.com/torvalds
/linux/blob/v4.19/drivers/usb/core/quirks.c 

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