[PATCH blktests] nvme/{016,017}: use _check_genctr instead of _filter_discovery

[Chaitanya Kulkarni]

On 6/5/2023 4:18 PM, Sagi Grimberg wrote:
> 
>> On May 31, 2023 / 09:07, Yang Xu wrote:
>>> Since commit 328943e3 ("Update tests for discovery log page changes"),
>>> blktests also include the discovery subsystem itself. But it
>>> will lead these cases fails on older nvme-cli system.
>>
>> Thanks for this report. What is the nvme-cli version with the issue?
>>
>>>
>>> To avoid this, like nvme/002, use _check_genctr to check instead of
>>> comparing many discovery Log Entry output.
>>>
>>> Signed-off-by: Yang Xu <xuyang2018.jy at fujitsu.com>
>>
>> The change looks fine to me, but I'd wait for comments by nvme 
>> developers.
> 
> I'm ok with this change, but IIRC Chaitanya wanted that we keep checking
> the full log-page output...

the original testcase was designed to validate the log page internals
and  that correctness cannot be established without looking into the log
page.

but given that how much churn this is generating eveytime something 
changes in nvme-cli or in kernel implementation I'm really wondering is
that worth everyone's time ?

Sagi/Shinichiro any thoughts ?

-ck