Re: Problem with xHCI; mass storage device not detected

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On Thu, Feb 9, 2012 at 12:28 AM, Sarah Sharp
<sarah.a.sharp@xxxxxxxxxxxxxxx> wrote:
> On Thu, Feb 02, 2012 at 02:14:20AM +0200, Felipe Contreras wrote:
>> On Wed, Feb 1, 2012 at 6:51 PM, Sarah Sharp
>> <sarah.a.sharp@xxxxxxxxxxxxxxx> wrote:
>> > On Tue, Jan 31, 2012 at 10:52:42PM +0200, Felipe Contreras wrote:
>> >> On Tue, Jan 31, 2012 at 9:34 PM, Sarah Sharp
>> >> <sarah.a.sharp@xxxxxxxxxxxxxxx> wrote:
>> >> > On Tue, Jan 31, 2012 at 02:18:12PM +0200, Felipe Contreras wrote:
>> >> >> I'm contacting the support for the U34P card. Also, I will try to
>> >> >> update the firmware of the USB 3 device.
>> >> >
>> >> > I'm trying to figure out if there's a way to create a quirk for your
>> >> > card, to work around the bad extended capabilities.  Can you capture
>> >> > dmesg, and plug and unplug a USB 2.0 device into each port?  I'm looking
>> >> > for lines in the dmesg that say:
>> >> >
>> >> > Port Status Change Event for port X.
>> >> >
>> >> > That will let me know which port offsets the host controller thinks are
>> >> > USB 2.0 ports.
>> >>
>> >> Here it is:
>> >> http://people.freedesktop.org/~felipec/xhci/dmesg_3.txt.xz
>> >
>> > "You don't have permission to access /~felipec/xhci/dmesg_3.txt.xz on
>> > this server."
>>
>> Opps! Fixed.
>>
>> >> Note that this USB 2.0 device didn't work =/
>
> Yep, I see that the host controller doesn't like some input we gave it
> when we tried to set up the configuration endpoint rings:
>
> Jan 31 22:43:53 dyfed kernel: [   79.045933] xhci_hcd 0000:02:00.0: ERROR: unexpected command completion code 0x11.
> Jan 31 22:43:53 dyfed kernel: [   79.045935] xhci_hcd 0000:02:00.0: xhci_reset_bandwidth called for udev ffff88042bec7000
> Jan 31 22:43:53 dyfed kernel: [   79.045936] xhci_hcd 0000:02:00.0: Freeing ring at ffff880429dceae0
> Jan 31 22:43:53 dyfed kernel: [   79.045937] xhci_hcd 0000:02:00.0: Freeing DMA segment at ffff88000282b800 (virtual) 0x282b800 (DMA)
> Jan 31 22:43:53 dyfed kernel: [   79.045939] xhci_hcd 0000:02:00.0: Freeing priv segment structure at ffff88042bee91c0
> Jan 31 22:43:53 dyfed kernel: [   79.045943] xhci_hcd 0000:02:00.0: Freeing ring at ffff880429dce060
> Jan 31 22:43:53 dyfed kernel: [   79.045944] xhci_hcd 0000:02:00.0: Freeing DMA segment at ffff880002843000 (virtual) 0x2843000 (DMA)
> Jan 31 22:43:53 dyfed kernel: [   79.045946] xhci_hcd 0000:02:00.0: Freeing priv segment structure at ffff88042bee9fe0
>
> I'll have to look at the input and see what we're doing wrong.
>
>> > So that's why we saw the USB 2.0 hub get enumerated when you showed me
>> > the log of plugging in a USB 3.0 device.  I thought it was a part of
>> > your USB 3.0 device, but it was actually part of the host controller.  I
>> > think the USB 3.0 device just didn't link train with the host controller
>> > (in fact the host controller didn't even report it failed link
>> > training).
>>
>> I see, that makes sense. But what could case that error?
>
> Maybe there's some other port status change bit set on the USB 3.0 port
> and we're not getting a connect status change event because of that?
> Does it help to run lsusb when you have the USB 3.0 device attached?  If
> so, please send dmesg for that.

Not really. IIRC it might have some time, but not now.

> The only other thing I can think of is to try compiling your kernel with
> CONFIG_USB_SUSPEND turned off.  Maybe the host controller can't cope
> with the USB 3.0 port being suspended?

That's how I am running the kernel already. (I compiled v3.2 myself)

-- 
Felipe Contreras
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