On Fri, 29 Apr 2022 13:14:12 +0000 Maloszewski, Michal wrote:

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When we have state which is running, it does not mean that we have 
queues configured on PF. So in order to configure queues on PF, the 
IAVF_FLAG_QUEUES has to be disabled. I use here EAGAIN, because as 
long as we are not configured with queues, it does not make any 
sense to trigger command and we are not sure when the configuration 
of queues will end - so that is why EAGAIN is used.

Let me rephrase the question. Does getting out of the state where 
error is reported require user to change something, or is it 
something that happens automatically behind the scenes (i.e. the state is transient).

It is something that happens automatically behind the scenes. 
It takes some time and there is no guarantee that it will be finished.

Then either wait for it to finish (wait queue or such) or if possible record the desired config and return success. Apply the new config when the reset is finished.

It really seems like you're making users pay the price for poor design of the driver's internals.

It is good idea. We had doubts if we could do that. I will try to fix it asap.