Out-of-band error reporting in a data center

A method comprising:

• receiving an interrupt indicating a fatal error;
• providing, in response to the interrupt, first information indicating the fatal error to a driver and second information indicating the fatal error to a location accessible to first circuitry that provides a control plane connection to an external entity;
• and
• conveying the second information from the first circuitry to the external entity via the control plane connection independently of the driver initiating at least one recovery action in response to receiving the first information.

An accelerator circuit comprising:

• first circuitry configured to implement a first controller;
• and
• second circuitry configured to implement a second controller that provides a control plane connection between the accelerator circuit and an external entity,
• wherein the first controller provides, in response to a fatal error in data plane circuitry of the accelerator circuit, first information indicating the fatal error to a driver and second information indicating the fatal error to a location accessible to the second controller,
• wherein the second controller conveys the second information to the external entity via the control plane connection independently of the driver initiating at least one recovery action in response to receiving the first information.