Difference between i40e and i40en?

[Edouard Gaulué]

Le 04/05/2022 à 08:34, David Marchand a écrit :
> Hello Édouard,
>
> On Tue, May 3, 2022 at 9:05 PM Edouard Gaulué <listes at e-gaulue.com> wrote:
>> I just received a brand new server with an Intel X710 T4L inside. I
>> hoped I could use it at 5GBaseT speed as claimed by Intel, but I couldn't.
>>
>> In fact, I run ESXi 6.7U3 on this new server and it looks it doesn't
>> support this speed (2.5G neither). I downloaded Intel driver source code
>> and discovered there was an incompatibility between 5GBaseT and DCB. But
>> then vmware support team, point me the driver used by ESXi is i40en and
>> not i40e.
>>
>> Are those drivers totally different? It looks to. Error strings found in
>> vmkernel.log couldn't be found in the source code. Is there any way to
>> get sources for i40en? For patching and rebuild.
>>
>> Any idea on who I should write to discuss with those i40en driver
>> maintainers? Here or totally out of scope?
> DPDK provides userspace drivers for various nics.
> If you are looking at kernel drivers issues, then yes, your mail seems
> out of scope :-).
>
> Afaics, i40en is a VMware thing, so the solution is probably to
> continue with VMware support.
> I copied some Intel *DPDK* driver maintainers who might have a better idea.
>
>

Thanks a lot.

VMware support told me it's Intel that develops the driver regarding 
their products. But they request me to ask DELL: "It's DELL support that 
should open a ticket with Intel. You won't be able to do it on your behalf."

The time I'll get an answer, we may be all on 100GBase-T ;-)

Regards,