[ofw] [WOF2-2] [PATCH v2 4/4] winverbs: allow WV:Disconnect() to be retried

[Fab Tillier]

Tzachi Dar wrote on Wed, 10 Mar 2010 at 00:04:10
> 
>> ND for some odd reason wants a successful return code for a
>> failed disconnect call.  If a Disconnect() call fails, allow
>> it to be retried.  Return STATUS_TIMEOUT - a 'successful'
>> failure, rather than STATUS_IO_TIMEOUT, which is a 'failed' failure.
>> (I love Windows, really, I do.)  A subsequent call to EP:
>> Disconnect() after a timeout will force the QP into the error
>> state and force the EP into the disconnected state.
> 
> In my experience all the ioctls should be returned as SUCCESS (or
> pending). In the returned buffer have a variable that is the real
> status. This will allow you to pass data from the kernel to the user
> without having to deal with windows way of reporting errors ...

You can't do that, because the user receives the I/O completion.  The user is first in line to see the error, and the drivers only get a chance to interpret the error after the user.

-Fab