mirror of
https://github.com/torvalds/linux
synced 2024-09-06 18:01:05 +00:00
docs: ABI: testing: Document the OCC hwmon FFDC binary interface
Add documentation for the new binary sysfs that will dump the SBEFIFO FFDC. Signed-off-by: Eddie James <eajames@linux.ibm.com> Link: https://lore.kernel.org/r/20211019205307.36946-4-eajames@linux.ibm.com Signed-off-by: Joel Stanley <joel@jms.id.au>
This commit is contained in:
parent
8ec3cc9fb5
commit
4cf400e120
|
@ -0,0 +1,13 @@
|
|||
What: /sys/bus/platform/devices/occ-hwmon.X/ffdc
|
||||
KernelVersion: 5.15
|
||||
Contact: eajames@linux.ibm.com
|
||||
Description:
|
||||
Contains the First Failure Data Capture from the SBEFIFO
|
||||
hardware, if there is any from a previous transfer. Otherwise,
|
||||
the file is empty. The data is cleared when it's been
|
||||
completely read by a user. As the name suggests, only the data
|
||||
from the first error is saved, until it's cleared upon read. The OCC hwmon driver, running on
|
||||
a Baseboard Management Controller (BMC), communicates with
|
||||
POWER9 and up processors over the Self-Boot Engine (SBE) FIFO.
|
||||
In many error conditions, the SBEFIFO will return error data
|
||||
indicating the type of error and system state, etc.
|
Loading…
Reference in a new issue