Proposal to Sync BMC's MAC Address to U-Boot environment

[Ratan Gupta]

Hi Alexander,

We only restart the systemd-networkd during change of macAddress, if the 
interface is DHCP Enabled.BMC should get new IP from the DHCP server if 
the mac address has got changed. Do you still see a issue?

It would be nice if you can publish your idea also.

--
Regards
Ratan Gupta


On 27/11/18 6:34 PM, Alexander A. Filippov wrote:
> Hi there,
>
> On our VESNIN servers it work by the same scenario.
> This way gives an excess restart of the systemd-network.service and it looks uncomfortable.
>
> For this reason, I wrote an implementation of the aspeed-i2c and VPD-parser for the u-boot-aspeed.
> It has one bug - i2c does not work at the cold start (after the power cord plugged). I will fix it later.
>
> The general idea, why it is not sent to the community yet - the mainline of the u-boot already has the implementation of the aspeed-i2c but has no support (or maybe not full) of ast-2400 (which we are using). It also in our plans but with lower priority.
>
> If you interested in any of these solutions, I can publish them.
>
> --
> Regards,
> Alexander Filippov
> Software Engineer, YADRO.
>
> ________________________________________
> От: openbmc <openbmc-bounces+a.filippov=yadro.com at lists.ozlabs.org> от имени Nagaraju Goruganti <ngorugan at in.ibm.com>
> Отправлено: 27 ноября 2018 г. 13:58:01
> Кому: openbmc at lists.ozlabs.org
> Тема: Proposal to Sync BMC's MAC Address to U-Boot environment
>
> HI All,
>
> As we want to get rid of python, making this proposal to sync BMC's MAC Address to U-Boot environment(assuming this is a common requirement across OpenBMC based systems).
>
> Proposal:
>
> Platform specific code :
>
> a) Get MAC Address from platform specific NV storage (BMC VPD on OpenPOWER systems) into an inventory object. It is being done by openpower-vpd-parser on the openpower systems .
>
> Common code:
>
> b) A script (invoked by systemd on the way to BMC ready state) fetches BMC MAC Address from (platform specific) inventory object. If this MAC Address and the one in u-boot environment are different (or if the u-boot one is empty), then the script writes the inventory MAC Address to u-boot using fw_setenv.
>
> c) The script can reside in a phosphor layer.
>
> Existing Python script:
>
> The existing python script(openbmc/skeleton/pyinventorymgr/sync_inventory_items.py) does the same thing.
>
>
> We need a opinion from the community members on this proposal.
>
> Best Regards,
>
> Nagaraju G
>