Advantech MIC-3396, Руководство пользователя

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57 MIC-3396 User Manual
Chapter 3
IPMI for
the
MIC-3396
3.4 Command Line Interface
The Advantech IPMI core supports besides the IPMI defined interfaces a command
line interface to grant easy and fast human readable system information. This can be
used for debugging and error recovery as well as showing information about the
board and firmware status. The command line interface (CLI) is implemented on
UART 0 and accepts high level commands as well as IPMI messages in “Serial Ter-
minal Mode” as specified in IPMI 1.5.
The CLI uses a baud rate of 115200, 8 data bits, 1 stop bit and no parity.
3.5 BMC Watchdog
The BMC provides an IPMI 2.0 compliant BMC Watchdog to monitor the OS during
runtime or to observe the BIOS boot progress.
3.5.1 BIOS Boot Watchdog
The IPMI compliant BMC Watchdog is used to monitor BIOS boot progress and initi-
ate a rollback when a BIOS is found to be corrupt.
It is set to a predefined value of 180 seconds and automatically starts when the pay-
load power for the x86 subsystem is being turned on. The time out action is set to
“hardware reset”, with the timer use indicating BIOS use.
If the watchdog timer times out with this configuration, it triggers a BIOS chip failover
followed by a system reset and restart of the watchdog timer. The mechanism runs in
an endless loop and logs ti failovers to the SEL through the Integrity Sensor.
BIOS does not touch the watchdog timer except for two situations:
1. It disables the watchdog right before jumping into the boot loader so it doesn’t
trigger after BIOS execution. It could alternatively reconfigure the watchdog to
act as boot watchdog (i.e. change timeout action).
2. It temporarily disables the watchdog once the setup menu is manually activated,
for debugging purposes.
Table 3.2: Standard CLI Commands
Command Description
[…] Any value between this brackets will be interpreted as IPMI message
<Enter> Confirm Input
<Up> Step through history
bios_hist Show BIOS POST code history
debug Switch to serial debug console ('q' or 'x' to exit)
help Print command overview
info Print FW and product information
memory_pres Show memory DIMM presence status
ncsi_status Print detailed NC-SI status
ncsi_table Print NC-SI link status table
reboot Reboot
spidump Dump all FPGA SPI registers
switch_debug Switch On/Off messaging interfaces in Debug output