ena(4) is not in GENERIC, now default for some/all instances on AWS EC2

[Maxim Sobolev]

Well, that might work, but I am curious why do we have all other network 40
or so drivers in the GENERIC but not this one. Considering significant
portion of FreeBSD systems deployed these days are going to be running on
the cloud this makes no sense to me. Is there some policy out there which
governs such decisions?

At the very least we need some kind of entry into UPDATING, IMHO.

-Max

On Thu, Jan 11, 2018 at 9:13 AM, Pete Wright <pete at nomadlogic.org> wrote:

>
>
> On 01/10/2018 21:34, Maxim Sobolev wrote:
>
>> Hi, today we've migrated one of our FreeBSD EC2 r4.xlarge instances and
>> painstakingly found that xn(4) interface is no longer provided by the
>> Amazon "hardware". ena(4) seems to be now default for a newly created VMs,
>> but it's not part of the GENERIC kernel. This could affect both new users
>> trying to deploy stock FreeBSD on AWS, as well as existing users migrating
>> their virtual assets running FreeBSD. I am not sure if there any technical
>> reasons for not having it, but perhaps somebody needs to take a look to
>> add
>> it in there if there are none?
>>
>
> (removing cross-posting as I believe this is relevant to the
> virtualization list mostly.)
>
> if_ena.ko is shipped as a kernel module on 11.1 on my end - would using
> configinit to append if_ena.ko to kld_list or loader.conf might be a decent
> workaround?  i would have assumed it would have been loaded at boot time if
> the device was detected, but i've never tested out instances that only
> support the ena(4) adapter.
>
> -p
>
> --
> Pete Wright
> pete at nomadlogic.org
> @nomadlogicLA
>
>