[OpenPower-Firmware] Infiniband network booting

[Stewart Smith]

> On 16 Apr 2020, at 09:52, Daniel M. Weeks <weeksd2 at rpi.edu> wrote:
> 
> In November 2019, I modified OpenPower firmware to support network
> booting IBM Power 9 systems over Infiniband.

Awesome!

> In the coming days, I will
> be submitting for review three series of patches for petitboot, a series
> of patches for busybox, and a series of patches for op-build that add
> the features to make this possible. While I believe these changes to be
> complete for the purposes of basic use, there are some things that
> remain unsupported, most notably PKEYs/subnets, which would require more
> extensive changes.
> 
> There is a caveat: The petitboot and op-build patches are for older
> branches since the hardware I have available is using petitboot 1.7.5
> and op-build 2.0.14.
> 
> First, this requires backporting a large number of kernel changes to fix
> netlink support in IPoIB. This may not affect later versions of the
> firmware depending on their kernel version. I can supply this series for
> review/use where there is interest.
> 
> Second, although I would like to, I have no good to way to test forward
> porting these changes to recent branches until the there is a recent
> firmware build supporting the hardware I have available.

Current op-build master probably does work on your hardware still. What hardware is it?

I *think* it’s only P7 we ever ripped support out.