Hi Jan!
I'm sorry for not replying for such a long time after asking questions. :-)
I figured out, that reducing USBLP_BUF_SIZE (usb/class/usblp.c) form
8192 to some smaller value, e.g. 4096 it works fine, but that's just a
workaround.
USBLP_BUF_SIZE is used to "usb_buffer_alloc" (usb/core/usb.c) dma memory:
>From usb.c:
usb_buffer_alloc - allocate dma-consistent buffer for
URB_NO_xxx_DMA_MAP
but here I'm out..
Probably you're just suffering from domains without any I/O memory ranges
assigned not being permitted to have multi-page contiguous memory ranges
assigned?
I added the usb-controllers as quirky devices, like xen told me to do:
(usb
(pci_ids
('1106:3038')
)
(pci_config_space_fields
('000000c0:2:00000000'
'000000f0:2:00000000'
'000000f8:2:00000000'
'00000084:2:00000000')
)
)
If not, do you force swiotlb on in the domain? And what resources
does the USB HC require?
Honestly I have no clue if I'm forcing it!
In the kernel-config I have "CONFIG_SWIOTLB=y"
Please see attaches "lspci" for resource-view (or is there a better
way, to see more information?)
I'm just using usb-controllers 0., 0.1 and 0.3 because 0.2 shares its
irq with another device and is not working in domU.
I hope we can isolate the problem a bit more now.
Please contact me for more information. (I'm now online again and can
answer much faster! :-) )
Thanks
Patrick
lspci -vvvn
00:10.0 0c03: 1106:3038 (rev a0) (prog-if 00 [UHCI])
Subsystem: 1462:7253
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 20
Region 4: I/O ports at f900 [disabled] [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:10.1 0c03: 1106:3038 (rev a0) (prog-if 00 [UHCI])
Subsystem: 1462:7253
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin B routed to IRQ 19
Region 4: I/O ports at f800 [disabled] [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:10.2 0c03: 1106:3038 (rev a0) (prog-if 00 [UHCI])
Subsystem: 1462:7253
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64, Cache Line Size: 32 bytes
Interrupt: pin C routed to IRQ 21
Region 4: I/O ports at f700 [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
00:10.3 0c03: 1106:3038 (rev a0) (prog-if 00 [UHCI])
Subsystem: 1462:7253
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin D routed to IRQ 18
Region 4: I/O ports at f600 [disabled] [size=32]
Capabilities: [80] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
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