[PATCH 0/2] nvme-fabrics: short-circuit connect retries

[Chao Leng]

On 2021/6/24 13:51, Hannes Reinecke wrote:
> On 6/23/21 11:38 PM, Sagi Grimberg wrote:
>>
>>> Hi all,
>>>
>>> commit f25f8ef70ce2 ("nvme-fc: short-circuit reconnect retries")
>>> allowed the fc transport to honour the DNR bit during reconnect
>>> retries, allowing to speed up error recovery.
>>
>> How does this speed up error recovery?
> 
> Well, not exactly error recovery (as there is nothing to recover).
> But we won't attempt pointless retries, thereby reducing the noise in the message log.
This conflict with the tcp and rdma target.
You may need to delete the improper NVME_SC_DNR at the target.
However, this will cause compatibility issues between different versions.
> 
> Cheers,
> 
> Hannes