On 11/05/2017 10:38 AM, Patrick O'Callaghan wrote:
Then while the VM is running it doesn't show:

     04:00.0 USB controller: Fresco Logic FL1100 USB 3.0 Host Controller (rev 
ff) (prog-if ff)
             !!! Unknown header type 7f
             Kernel driver in use: vfio-pci

However after
shutting down the VM I then get:

     04:00.0 USB controller: Fresco Logic FL1100 USB 3.0 Host Controller (rev 
ff) (prog-if ff)
             !!! Unknown header type 7f

and have to reboot the host to get it back. I haven't even got to try
the MSI thing yet because sometimes the VM won't even start with it
passed through after this happens, so perhaps the card itself needs
some other kind of reset. I confess ignorance on this.

I'll keep hammering at it ...

poc


Your issue is reminiscent of this post:

https://www.redhat.com/archives/vfio-users/2016-June/msg00102.html

The workaround suggested by Alex further on in that thread solved the problem for him. For me, my FL1100-based Sonnet Allegro Pro works fine on an Ubuntu 17.04 install (kernel 4.10), so I believe that change made it upstream at some point.

Steve

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