* uas module not loaded automatically
[not found] ` <54311549.4070808@redhat.com>
@ 2014-10-05 11:03 ` Jan Kiszka
2014-10-06 6:39 ` [solved] " Jan Kiszka
0 siblings, 1 reply; 3+ messages in thread
From: Jan Kiszka @ 2014-10-05 11:03 UTC (permalink / raw)
To: linux-modules; +Cc: Hans de Goede
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Hi all,
I'm migrating this conversation over from LKML as it is probably a kmod
issue. I've just retried the scenario with kmod 18 (from OpenSUSE
Factory) and can still confirm it. Please see below for details.
On 2014-10-05 11:54, Hans de Goede wrote:
> Hi,
>
> On 10/05/2014 11:48 AM, Jan Kiszka wrote:
>> On 2014-10-05 11:43, Hans de Goede wrote:
>>> Hi,
>>>
>>> On 10/05/2014 11:31 AM, Jan Kiszka wrote:
>>>> On 2014-10-05 11:23, Hans de Goede wrote:
>>>>> Hi,
>>>>>
>>>>> On 10/05/2014 11:14 AM, Jan Kiszka wrote:
>>>>>> On 2014-10-05 11:08, Hans de Goede wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> On 10/04/2014 08:35 PM, Jan Kiszka wrote:
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> my Delock external USB drive stopped working after updating from a
>>>>>>>> UAS-disabled distro kernel to latest 3.17-rc7 with UAS on. That UAS was
>>>>>>>> key became clear to me only after looking at storage_probe(): the device
>>>>>>>> is ignored by usb-storage if it is UAS-capable. However, nothing causes
>>>>>>>> uas.ko to be loaded when the drive is plugged here. How is this supposed
>>>>>>>> to work in the normal case?
>>>>>>>
>>>>>>> Is the uas.ko module installed, and was depmod run after installing it ?
>>>>>>
>>>>>> Definitely. Just retried after another depmod -a, and only modprobe uas
>>>>>> made it work.
>>>>>>
>>>>>>>
>>>>>>> uas.c has the following:
>>>>>>>
>>>>>>> { USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, USB_SC_SCSI, USB_PR_BULK) },
>>>>>>> { USB_INTERFACE_INFO(USB_CLASS_MASS_STORAGE, USB_SC_SCSI, USB_PR_UAS) },
>>>>>>>
>>>>>>> Which should make it load automatically on your device.
>>>>>>
>>>>>> Should this match with what lsusb -v reports for the device?
>>>>>
>>>>> Yes, and it does, for both alt settings of your device:
>>>>>
>>>>> bInterfaceClass 8 Mass Storage
>>>>> bInterfaceSubClass 6 SCSI
>>>>> bInterfaceProtocol 80 Bulk-Only
>>>>>
>>>>> bInterfaceClass 8 Mass Storage
>>>>> bInterfaceSubClass 6 SCSI
>>>>> bInterfaceProtocol 98
>>>>>
>>>>> Where 98 == USB_PR_UAS, seems you have an quite old lsusb if it does not
>>>>
>>>> It says "007".
>>>>
>>>>> know that though. Could it be the rest of your userspace is old too, and is
>>>>> not smart enough to load all matching drivers, instead only loading the first matching
>>>>> driver (which happens to be usb-storage) ?
>>>>
>>>> OpenSUSE 13.1, all updates installed. Which components are involved?
>>>> udev - Version 208? Below is the udevadm monitor output.
>>>
>>> Hmm, that is not all that old, I would expect that to work.
>>>
>>> Here is how things "work" on my system:
>>>
>>> [hans@shalem ~]$ lsmod | grep uas
>>> uas 22414 0
>>> usb_storage 65065 1 uas
>>> [hans@shalem ~]$ sudo rmmod uas
>>> [hans@shalem ~]$ lsmod | grep uas
>>> [hans@shalem ~]$ sudo modprobe usb:v174Cp5136d0100dc00dsc00dp00ic08isc06ip50in00
>>> [hans@shalem ~]$ lsmod | grep uas
>>> uas 22414 0
>>> usb_storage 65065 1 uas
>>>
>>> So as you can see the modalias taken from your udev debug output causes
>>> uas to get loaded, can you try the above ?
>>
>> That command sequence doesn't cause uas to be reloaded. Anything I need
>> to customize for my setup?
>
> Not that I know of, so this seems to be a modprobe issue, and this should
> probably be taken to the relevant list for modprobe. Please put me in the CC
> when you send a mail there, and you likely will want to include the output
> of the above commands + the modinfo output for both uas and usb-storage.
>
>>
>>>
>>> Also what does "modinfo uas" say? For me it says:
>>>
>>> [hans@shalem ~]$ modinfo uas
>>> filename: /lib/modules/3.17.0-rc6+/kernel/drivers/usb/storage/uas.ko
>>> author: Hans de Goede <hdegoede@redhat.com>, Matthew Wilcox and Sarah Sharp
>>> license: GPL
>>> alias: usb:v*p*d*dc*dsc*dp*ic08isc06ip62in*
>>> alias: usb:v*p*d*dc*dsc*dp*ic08isc06ip50in*
>>> alias: usb:v174Cp5106d*dc*dsc*dp*ic*isc*ip*in*
>>> alias: usb:v152Dp0567d*dc*dsc*dp*ic*isc*ip*in*
>>> alias: usb:v0BC2pAB20d*dc*dsc*dp*ic*isc*ip*in*
>>> alias: usb:v0BC2p3312d*dc*dsc*dp*ic*isc*ip*in*
>>> alias: usb:v0BC2p2312d*dc*dsc*dp*ic*isc*ip*in*
>>> depends: usb-storage
>>> vermagic: 3.17.0-rc6+ SMP mod_unload
>>> signer: Magrathea: Glacier signing key
>>> sig_key: 9B:56:00:B2:C4:97:8D:4A:A9:B3:0B:54:32:F7:B7:B2:2F:3E:FB:D8
>>> sig_hashalgo: sha256
>>>
>>> Note the alias-es with vendor and product ids are from quirks, and your version
>>> will likely not have these. But the first 2 generic ones should be there, and
>>> match the modalias from the udev output.
>>
>> filename: /lib/modules/3.17.0-rc7-homebrewed+/kernel/drivers/usb/storage/uas.ko
>> author: Hans de Goede <hdegoede@redhat.com>, Matthew Wilcox and Sarah Sharp
>> license: GPL
>> srcversion: 597B27EF314ADC559827CBD
>> alias: usb:v*p*d*dc*dsc*dp*ic08isc06ipAAin*
>> alias: usb:v*p*d*dc*dsc*dp*ic08isc06ip62in*
>> alias: usb:v*p*d*dc*dsc*dp*ic08isc06ip50in*
>> depends: usb-storage
>> intree: Y
>> vermagic: 3.17.0-rc7-homebrewed+ SMP preempt mod_unload modversions
>
> That looks good, so no idea why modprobe is not loading it.
>
> Regards,
>
> Hans
>
>
For reference, here is the lsusb -v of the device again (to prove that
it should match the alias):
Bus 002 Device 010: ID 174c:5136 ASMedia Technology Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 3.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 9
idVendor 0x174c ASMedia Technology Inc.
idProduct 0x5136
bcdDevice 1.00
iManufacturer 2 Delock
iProduct 3 42514
iSerial 1 200000000CB4
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 121
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 36mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 15
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 15
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 1
bNumEndpoints 4
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 98
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 15
MaxStreams 16
Data-in pipe (0x03)
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 15
MaxStreams 16
Data-out pipe (0x04)
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 15
MaxStreams 16
Status pipe (0x02)
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 0
bMaxBurst 0
Command pipe (0x01)
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 22
bNumDeviceCaps 2
USB 2.0 Extension Device Capability:
bLength 7
bDescriptorType 16
bDevCapabilityType 2
bmAttributes 0x00000002
Link Power Management (LPM) Supported
SuperSpeed USB Device Capability:
bLength 10
bDescriptorType 16
bDevCapabilityType 3
bmAttributes 0x00
wSpeedsSupported 0x000e
Device can operate at Full Speed (12Mbps)
Device can operate at High Speed (480Mbps)
Device can operate at SuperSpeed (5Gbps)
bFunctionalitySupport 1
Lowest fully-functional device speed is Full Speed (12Mbps)
bU1DevExitLat 10 micro seconds
bU2DevExitLat 2047 micro seconds
Device Status: 0x0001
Self Powered
Thanks,
Jan
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