[PATCH v3 3/3] nvme: handle connectivity loss in nvme_set_queue_count

[Sagi Grimberg]

On 17/12/2024 10:35, Daniel Wagner wrote:
> On Fri, Nov 29, 2024 at 12:10:33PM +0100, Hannes Reinecke wrote:
>>> +	/*
>>> +	 * It's either a kernel error or the host observed a connection
>>> +	 * lost. In either case it's not possible communicate with the
>>> +	 * controller and thus enter the error code path.
>>> +	 */
>>> +	if (status < 0 || status == NVME_SC_HOST_PATH_ERROR)
>>>    		return status;
>>>    	/*
>>>
>> Hmm. Maybe checking for NVME_SC_DNR, too?
> if no one complains I'll update the check to:
>
> 	if (status < 0 || (status > 0 && (status & NVME_STATUS_DNR)) ||
> 	    status == NVME_SC_HOST_PATH_ERROR)
> 		return status;
>
> okay?
Why do we care about the DNR? are you going to retry based on it?