Topic: firmware

We have recently released version 2.0 of the mctp userspace utilities. There are a few changes from the v1.x series, particular some modifications to mctpd's dbus API. This document provides an overview of those changes, as a guide for updating applications that interact with mctpd to the v2 series and beyond.

We have recently been adding support to the libnvme and MCTP components of Linux that allow out-of-band communication with NVMe storage devices. One of the neat applications of this is to manage device firmware - allowing a BMC to update firmware over an out-of-band (OOB) channel, without any intervention from the host system.

The protocol for the firmware updates is specified by the NVM Express standard, so device support is generally pretty good. As long as the device supports NVMe-MI, out-of-band firmware update should work.