[LSF/MM/BPF TOPIC] TP4129 KATO correctoins and clarification

[John Meneghini]

On 2/7/25 4:00 AM, Sagi Grimberg wrote:
>>
>> I appreciate the comments on TP8028. I don't like how slow the timer method is
>> and really hope that we can continue to work on methods of making NVMe-oF
>> error detection and recovery faster, while maintaining data integrity. The
>> TP8028 effort is what we have in development and I'm optimistic that we'll be
>> able to discuss that model at LSF.
> 
> I think its reasonable for a subsystem to report the host a failover delay. While it is
> indeed a "best effort", its most likely sufficient for implementers to never see
> where it breaks... I just had an issue with prior attempts to make it behavior universal.
> 
> I also agree that making quiesce in failover explicit is the best solution. But I don't think
> we should reject any attempt of making the host respect the controller CQT.

Good to hear Sagi.  Sorry for my rant.  I should have read your email to the end before send my response.

/John