[PATCH v2] nvme-rdma: support devices with queue size < 32

[Marta Rybczynska]

>> +static inline nvme_rdma_queue_sig_limit(struct nvme_rdma_queue *queue)
>> +{
>> +       int sig_limit;
>> +
>> +       /* We signal completion every queue depth/2 and also
>> +        * handle the case of possible device with queue_depth=1,
>> +        * where we would need to signal every message.
>> +        */
>> +       sig_limit = max(queue->queue_size / 2, 1);
>> +       return (++queue->sig_count % sig_limit) == 0;
>> +}
> 
> I would love if we could do this at the ib_qp level.  I also know
> you found a real bug and we want it fixed ASAP, so maybe for now
> we should merge this one:
> 
> Reviewed-by: Christoph Hellwig <hch at lst.de>
> 
> and then do the generic version.  Marta, do you want to tackle the
> generic version or should I look into this once I get a little time.

I can look if I can do the same thing at the ib_qp level. It would be
great to have other people feedback on this one before it is merged.
We're testing this one now and we can see what I can do in a week or
so? Fine for you?

Marta