LLDP discovery is not working when IPA is run on system with X710 network cards

[Tomasz Paszkowski]

Reason for that is that all i40e driver based network cards are running embedded LLDP agent. To disable that following command needs to be called:

for i in `ls /sys/kernel/debug/i40e` ; do
echo lldp stop > "${i}/command"
done

IMHO the best would be to execute this from IPA itself and not enable this in the CoreOS cloudconfig files.

[Dmitry Tantsur (divius)]

I think it's a good case for having a separate hardware manager: http://docs.openstack.org/developer/ironic-python-agent/#hardware-managers

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/391836

[Szymon Borkowski (szymon-borkowski)]

I spoke with Tomasz about that bug and we were wrong -> each time the machine reboots, the embedded LLDP agent is run. Thus we need to stop it before the inspection starts. Hardware manager won't help, because its cleaning steps will be executed when the node is transitioned into 'available' state, so after the inspection.
I have an idea how to remake it: maybe just as a custom collector (like PCI-devices collector), but I am still unsure about that.

[Dmitry Tantsur (divius)]

I'm not sure how cleaning is related here, sorry. Just disable the LLDP agent on hardware manager initialization.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/391836
Committed: https://git.openstack.org/cgit/openstack/ironic-python-agent/commit/?id=ef47d62f4359c5b5a1b3a14a7949fd3992304f13
Submitter: Jenkins
Branch: master

commit ef47d62f4359c5b5a1b3a14a7949fd3992304f13
Author: Szymon Borkowski <email address hidden>
Date: Wed Nov 23 17:14:15 2016 +0100

    Add a new Hardware Manager for CNA network card

    This patch adds a new hardware manager, which will disable the embedded
    LLDP agent on Intel CNA network cards in order to allow the gathering of
    LLDP data during the inspection process.

    Change-Id: I572756ac6a7bf67a7f446738ba9d145e1c1bdc48
    Closes-Bug: #1623659

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/ironic-python-agent 2.0.0 release.