** Changed in: linux (Ubuntu)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1688132
Title:
Support IPMI system interface on Cavium ThunderX
Status in linux package in Ubuntu:
Fix Committed
Status in linux source package in Xenial:
In Progress
Status in linux source package in Yakkety:
In Progress
Status in linux source package in Zesty:
Fix Committed
Bug description:
[Impact]
The IPMI system interface (/dev/ipmi0) is unavailable on Cavium
ThunderX-based systems. This prevents various in-band management tasks,
including auto-enlistment using MAAS.
[Test Case]
sudo modprobe ipmi_ssif
sudo modprobe ipmi_devintf
Do you have a working /dev/ipmi0?
sudo ipmitool lan print
[Regression Risk]
For hwe-z, this is a small fix to a driver that is only used on
ThunderX-based systems, and is currently not usable w/o magic manual steps.
For hwe-x and hwe-y, this also impacts the i2c-octeon driver. After
hwe-y, upstream split that driver into 2 pieces to factor out code
that could be shared with i2c-thunderx, and then i2c-thunderx was
added. i2c-octeon is a driver for Cavium OCTEON systems, which are
MIPS64 - an architecture unsupported by Ubuntu, so regression risk is
negligible. i2c-thunderx is a new driver that is only loaded on
ThunderX-based systems, so the testing we've performed on ThunderX
should mitigate that regression risk.
Note: there are issues with older firmware (version varies depending
on platform) where the IPMI device can vanish between reboots,
requiring a BMC reset to recover. This doesn't cause any other problem
- drivers don't load, and it's as if this driver was never added.
However, it is worth noting here in case people google it. Please
upgrade your firmware if you run into this.
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