Hi all,
I have a question regarding the usb data toggle reset patch at https://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git/log/?h=ep_reset_halt_test
I know that it is just experimental. Now I am in the situation that I need exactly this data toggle reset. I want to flash a radio unit via VBox using XHCI emulation. The radio unit itself is USB 2.0 connected to the host via XHCI (no EHCI available at Lenovo T460s). I made some tests and in some cases it works pretty well. But in some situations I got the following errors:
[ 307.703605] usb 2-2: new full-speed USB device number 8 using xhci_hcd
[ 310.647551] usb 2-2: new full-speed USB device number 10 using xhci_hcd
[ 310.818060] usb 2-2: New USB device found, idVendor=0cad, idProduct=9006
[ 310.818065] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 310.818069] usb 2-2: Product: TETRA Radio
[ 310.818071] usb 2-2: Manufacturer: Motorola Solutions, Inc.
[ 310.819515] xhci_hcd 0000:00:14.0: Endpoint 0x1 ep reset callback called
[ 310.819735] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 1
[ 310.820200] xhci_hcd 0000:00:14.0: Endpoint 0x82 ep reset callback called
[ 310.820417] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 4
[ 310.821376] xhci_hcd 0000:00:14.0: Endpoint 0x3 ep reset callback called
[ 310.821796] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 5
[ 310.822262] xhci_hcd 0000:00:14.0: Endpoint 0x84 ep reset callback called
[ 310.822453] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 8
[ 357.882021] xhci_hcd 0000:00:14.0: Endpoint 0x1 ep reset callback called
[ 357.882257] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 1
[ 357.883463] xhci_hcd 0000:00:14.0: Endpoint 0x82 ep reset callback called
[ 357.883698] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 4
[ 358.163174] xhci_hcd 0000:00:14.0: Endpoint 0x1 ep reset callback called
[ 358.163413] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 1
[ 358.164459] xhci_hcd 0000:00:14.0: Endpoint 0x82 ep reset callback called
[ 358.164694] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 4
[ 363.740553] xhci_hcd 0000:00:14.0: Endpoint 0x1 ep reset callback called
[ 363.740952] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 1
[ 363.742442] xhci_hcd 0000:00:14.0: Endpoint 0x82 ep reset callback called
[ 363.742667] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 4
[ 363.759807] xhci_hcd 0000:00:14.0: Endpoint 0x3 ep reset callback called
[ 363.760047] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 5
[ 363.761298] xhci_hcd 0000:00:14.0: Endpoint 0x84 ep reset callback called
[ 363.761422] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 8
[ 366.364290] xhci_hcd 0000:00:14.0: Endpoint 0x1 ep reset callback called
[ 366.364527] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 1
[ 366.366071] xhci_hcd 0000:00:14.0: Endpoint 0x82 ep reset callback called
[ 366.366296] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 4
[ 367.364950] xhci_hcd 0000:00:14.0: Endpoint 0x1 ep reset callback called
[ 367.365190] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 1
[ 367.366608] xhci_hcd 0000:00:14.0: Endpoint 0x82 ep reset callback called
[ 367.366828] xhci_hcd 0000:00:14.0: Reset toggle/seq for slot 11, ep_index: 4
[ 368.426103] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 1 comp_code 1
[ 368.426106] xhci_hcd 0000:00:14.0: Looking for event-dma 0000000308a8e000 trb-start 0000000308a8e020 trb-end 0000000308a8e020 seg-start 0000000308a8e000 seg-end 0000000308a8eff0
[ 368.426379] xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 1 comp_code 1
[ 368.426381] xhci_hcd 0000:00:14.0: Looking for event-dma 0000000308a8e010 trb-start 0000000308a8e020 trb-end 0000000308a8e020 seg-start 0000000308a8e000 seg-end 0000000308a8eff0
[ 375.608459] usb 2-2: USB disconnect, device number 10
Are there any hints what I can try or can somebody give me a hint whats wrong there?
Thank you & best regards,
Dennis
On 28.06.2017 16:17, Dennis Wassenberg wrote:
> Hi all,
>
> I have a question regarding the usb data toggle reset patch at https://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git/log/?h=ep_reset_halt_test
>
> I know that it is just experimental. Now I am in the situation that I need exactly this data toggle reset. I want to flash a radio unit via VBox using XHCI emulation. The radio unit itself is USB 2.0 connected to the host via XHCI (no EHCI available at Lenovo T460s). I made some tests and in some cases it works pretty well. But in some situations I got the following errors:
>
That was based on a really old kernel, you might be better off with trying to add back
this reverted patch on a more recent kernel:
commit 27082e2654dc148078b0abdfc3c8e5ccbde0ebfa
xhci: Clear the host side toggle manually when endpoint is 'soft reset'
I don't remember why it was reverted anymore, would need to dig through mailing
list etc.
-Mathias