Re: UAS questions

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On 01/27/13 13:54, Vlad Silman wrote:
> Hello,
> 
> I have a few questions regarding Linux UAS host-side and device-side drivers.
> I've seen that Linux UAS host driver supports the task management
> commands as defined by T10 UAS spec, such as ABORT TASK and LOGICAL
> UNIT RESET.
> I'm trying to work with Thermaltake BlacX dock that doesn't support
> these commands and it doesn't work with Linux UAS host driver.

uas should work nevertheless.  Under normal circumstances the device
management functions should not be used.  And even if they don't work,
at some point in error handling the scsi layer will invoke the bus_reset
handler which doesn't try to use task management functions any more and
just resets the device to recover ...

Be sure to run the latest bits (greg's usb tree or
http://www.kraxel.org/cgit/linux/log/?h=uas), there have been uas fixes
recently which are not merged upstream yet.

Might also be bugs in the xhci stream handling are tripping you up.

cheers,
  Gerd
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