Bill

On Mon, 11 Jun 2018 at 21:01 William Mills <wmi...@ti.com> wrote:

>
> >     I think it's likely useful to fog/edge but not critical, it will
> >     depend a lot on the size of the device. In the arm space it'll be
> >     either EBBR or SBBR/SBSA, either way standardisation will be good.
> >
> >
> > Well, people misuse the term 'gateway' wildly from tiny bridge devices
> > to grown up things.  It will be uneven, but the push will come.  Weaker
> > than the data center.
> >
> >
>
> Sure some of these devices will be so server like they should follow the
> whole SBBR/SBSA.  But there will be others that need something lighter.
> That is where the EBBR should come in.  We are trying to make sure it
> scales down to even $7 boards.
>
>
Agreed.  So long as the devices are 'tethered' to a gateway, they can use
whatever methods they want.  We're a long way from standardising all IoT
devices so that they can be managed everywhere by anything.


> I do think the EBBR is important for this Fog/Edge eco-system but I do
> not think it will be obvious to everyone that they should pay attention.
>
>
Exactly why I'm covering 'The Boot Problem' @ the member's meeting in Paris
next month.


> The competition for EBBR will be the status quo.  Many people see no
> need to make their HW run multiple OSes.  They believe that their custom
> tweaked OS is the only thing that need ever run.
>
>
True


> The same thing is true in the network switch world but the existance of
> the ONIE project suggests that that world has seen the value of multiple
> installable OSes.
>
>
I think that the SoC guys want it that way, they want to sell silicon into
multiple places.  The device manufacturers care less.


> A robust container eco-system actually decreases the need for EBBR
> because all the real need for portability is hidden in the containers.
> A given HW platform just needs the base container host and everything is
> good.
>
>
Yes, containers help automate the payload, but they don't reduce the need
for a sane set of firmware 'blobs' that interact safely and securely and
are OTA updateable.


> Luckily there is such a diversity for container hosts systems, the need
> for EBBR re-emerges so the HW vendor does not need to lock into just one.
>
>
Cut down / embedded Kubernetes works for me

>
>
> >     > [2] EBBR et al is complex, so moving down the reference platform
> >     route makes
> >     > sense (to me at least).  I know that reference platforms created a
> >     lot of
> >     > debate in Linaro in LEG, but I think that has settled down now,
> with
> >     > everyone understanding what they are and are not and where the
> >     value is.
> >     >
>
> I don't know if I agree with the complex part.  We are trying to make it
> easy for HW vendors: Use latest upstream U-boot configured this way and
> your done.  Want to add features? Add these things to your HW.
>
> However for the U-boot/EDK/OS authors we do want a test platform and to
> show it done well.
>
> As already discussed some in the EBBR calls, QEMU should be "the
> reference platform".  We can configure QEMU to be a very HW resource
> rich system, a very HW resource constrained system, or any thing in
> between.
>
>
Agreed.


> We hope and expect that multiple boards will then buy into this system
> and be able to show it working.  But that is really up to each board's
> owners / landing team whatever. These are not "reference platforms" but
> examples of EBBR in the wild.  The more the merrier; no one is picking
> just one real HW platform.
>
>
Good strategy but we need to have the reference Platforms discussion
again...

David


> Bill
>
-- 
David A Rusling
CTO, Linaro
https://linaro.org
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