xref: /linux/Documentation/ABI/testing/sysfs-bus-platform-devices-occ-hwmon (revision a4eb44a6435d6d8f9e642407a4a06f65eb90ca04)
1What:		/sys/bus/platform/devices/occ-hwmon.X/ffdc
2KernelVersion:	5.15
3Contact:	eajames@linux.ibm.com
4Description:
5		Contains the First Failure Data Capture from the SBEFIFO
6		hardware, if there is any from a previous transfer. Otherwise,
7		the file is empty. The data is cleared when it's been
8		completely read by a user. As the name suggests, only the data
9		from the first error is saved, until it's cleared upon read. The OCC hwmon driver, running on
10		a Baseboard Management Controller (BMC), communicates with
11		POWER9 and up processors over the Self-Boot Engine (SBE) FIFO.
12		In many error conditions, the SBEFIFO will return error data
13		indicating the type of error and system state, etc.
14