Re: [PATCH v2] Add device reset timeout field

["Michael S. Tsirkin" <mst@redhat.com>]

On Thu, Oct 07, 2021 at 03:42:24AM +0000, Parav Pandit wrote:
> > There's no reason for a driver to choose any value - it has nothing else to do.
> >
> At least for the devices that we are seeing, driver choosing a default value of 2 to 3 minutes is good enough and of course useful.

Well I don't get this of course yet. I guess it's useful for some
workloads, but VM being blocked for 2 minutes breaks lots of workloads.
Guests with 30 devices do exist, we are talking about an hour to start
these guest.

I wonder whether we should instead just provide some guidance on how long
is it ok for reset to take? Say if we want to address kata, <100ms boot
time, I guess we can recomment not more than 10ms? Anything
more would trigger at least a warning.

-- 
MST