more than 64 lcores not properly supported

[Ferruh Yigit]

On 2/23/2022 10:42 AM, Morten Brørup wrote:
> +Thomas, you may be interested in this discussion about applications using an uint64_t bit mask to identify active lcores.
> 
>> From: Ferruh Yigit [mailto:ferruh.yigit at intel.com]
>> Sent: Wednesday, 23 February 2022 11.03
>>
>> On 2/23/2022 7:17 AM, Morten Brørup wrote:
>>>> From: Stephen Hemminger [mailto:stephen at networkplumber.org]
>>>> Sent: Tuesday, 22 February 2022 17.03
> 
> [...]
> 
>>>>
>>>> DPDK now supports > 64 lcores. So all code using/assuming a 64 bit
>> mask
>>>> is broken.
>>>>
>>>
>>> Good point. Is there a TODO-list where such a general review request
>> can be filed, or should we just file it as a system-wide bug in
>> Bugzilla?
>>>
>>> Nonetheless, I think this one-line fix should be accepted as a short
>> term solution.
>>>
>>
>> Hi Morten,
>>
>> I suspect there can be more places that testpmd assumes
>> max core number is 64, someone needs to spend time to
>> analyze and fix it.
> 
> My point exactly. Someone needs to spend time to analyze all DPDK libraries and applications, and fix it where appropriate. Where do we register this required effort, so it can be picked up by someone?
> 

testpmd is an application and it has its own restrictions,
I *assumed* libraries are safe and restriction is only in
testpmd, but may be better to verify this as well.

> Also, it should probably be mentioned as a known bug in the 22.03 release notes.
>